maxColl ? maxColl : _collateral;\n\n\n\n // withdraw collateral from cdp\n\n drawMaxCollateral(_cdpId, _joinAddr, maxColl);\n\n\n\n // send back to msg.sender\n\n if (_joinAddr == ETH_JOIN_ADDRESS) {\n\n msg.sender.transfer(address(this).balance);\n\n } else {\n\n ERC20 collToken = ERC20(getCollateralAddr(_joinAddr));\n\n collToken.transfer(msg.sender, collToken.balanceOf(address(this)));\n\n }\n\n }\n\n\n\n function open(\n\n uint _cdpId,\n\n address _joinAddr,\n\n uint _debtAmount\n\n ) public {\n\n\n\n uint collAmount = 0;\n\n\n\n if (_joinAddr == ETH_JOIN_ADDRESS) {\n\n collAmount = address(this).balance;\n\n } else {\n\n collAmount = ERC20(address(Join(_joinAddr).gem())).balanceOf(address(this));\n\n }\n\n\n\n if (_cdpId == 0) {\n\n openAndWithdraw(collAmount, _debtAmount, address(this), _joinAddr);\n\n } else {\n\n // add collateral\n\n addCollateral(_cdpId, _joinAddr, collAmount);\n\n // draw debt\n\n drawDai(_cdpId, manager.ilks(_cdpId), _debtAmount);\n\n }\n\n\n\n // transfer to repay FL\n\n ERC20(DAI_ADDRESS).transfer(msg.sender, ERC20(DAI_ADDRESS).balanceOf(address(this)));\n\n\n\n if (address(this).balance > 0) {\n\n tx.origin.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n function openAndWithdraw(uint _collAmount, uint _debtAmount, address _proxy, address _joinAddrTo) internal {\n\n bytes32 ilk = Join(_joinAddrTo).ilk();\n\n\n\n if (_joinAddrTo == ETH_JOIN_ADDRESS) {\n\n MCDCreateProxyActions(OPEN_PROXY_ACTIONS).openLockETHAndDraw{value: address(this).balance}(\n\n address(manager),\n\n JUG_ADDRESS,\n\n ETH_JOIN_ADDRESS,\n\n DAI_JOIN_ADDRESS,\n\n ilk,\n\n _debtAmount,\n\n _proxy\n\n );\n\n } else {\n\n ERC20(getCollateralAddr(_joinAddrTo)).approve(OPEN_PROXY_ACTIONS, uint256(-1));\n\n\n\n MCDCreateProxyActions(OPEN_PROXY_ACTIONS).openLockGemAndDraw(\n\n address(manager),\n\n JUG_ADDRESS,\n\n _joinAddrTo,\n\n DAI_JOIN_ADDRESS,\n\n ilk,\n\n _collAmount,\n\n _debtAmount,\n\n true,\n\n _proxy\n\n );\n\n }\n\n }\n\n\n\n\n\n function drawMaxCollateral(uint _cdpId, address _joinAddr, uint _amount) internal returns (uint) {\n\n manager.frob(_cdpId, -toPositiveInt(_amount), 0);\n\n manager.flux(_cdpId, address(this), _amount);\n\n\n\n uint joinAmount = _amount;\n\n\n\n if (Join(_joinAddr).dec() != 18) {\n\n joinAmount = _amount / (10 ** (18 - Join(_joinAddr).dec()));\n\n }\n\n\n\n Join(_joinAddr).exit(address(this), joinAmount);\n\n\n\n if (_joinAddr == ETH_JOIN_ADDRESS) {\n\n Join(_joinAddr).gem().withdraw(joinAmount); // Weth -> Eth\n\n }\n\n\n\n return joinAmount;\n\n }\n\n\n\n}\n\ncontract AaveSaverProxy is GasBurner, SaverExchangeCore, AaveHelper {\n\n\n\n\taddress public constant DEFISAVER_LOGGER = 0x5c55B921f590a89C1Ebe84dF170E655a82b62126;\n\n\n\n uint public constant VARIABLE_RATE = 2;\n\n\n\n\tfunction repay(ExchangeData memory _data, uint _gasCost) public payable burnGas(20) {\n\n\n\n\t\taddress lendingPoolCore = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPoolCore();\n\n\t\taddress lendingPool = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n\t\taddress payable user = payable(getUserAddress());\n\n\n\n\t\tuint256 maxCollateral = getMaxCollateral(_data.srcAddr, address(this));\n\n\t\t// don't swap more than maxCollateral\n\n\t\t_data.srcAmount = _data.srcAmount > maxCollateral ? maxCollateral : _data.srcAmount;\n\n\n\n\t\t// redeem collateral\n\n\t\taddress aTokenCollateral = ILendingPool(lendingPoolCore).getReserveATokenAddress(_data.srcAddr);\n\n\t\tIAToken(aTokenCollateral).redeem(_data.srcAmount);\n\n\n\n\t\tuint256 destAmount = _data.srcAmount;\n\n\t\tif (_data.srcAddr != _data.destAddr) {\n\n\t\t\t// swap\n\n\t\t\t(, destAmount) = _sell(_data);\n\n\t\t\tdestAmount -= getFee(destAmount, user, _gasCost, _data.destAddr);\n\n\t\t} else {\n\n\t\t\tdestAmount -= getGasCost(destAmount, user, _gasCost, _data.destAddr);\n\n\t\t}\n\n\n\n\t\t// payback\n\n\t\tif (_data.destAddr == ETH_ADDR) {\n\n\t\t\tILendingPool(lendingPool).repay{value: destAmount}(_data.destAddr, destAmount, payable(address(this)));\n\n\t\t} else {\n\n\t\t\tapproveToken(_data.destAddr, lendingPoolCore);\n\n\t\t\tILendingPool(lendingPool).repay(_data.destAddr, destAmount, payable(address(this)));\n\n\t\t}\n\n\n\n\t\t// first return 0x fee to msg.sender as it is the address that actually sent 0x fee\n\n\t\tsendContractBalance(ETH_ADDR, tx.origin, min(address(this).balance, msg.value));\n\n\t\t// send all leftovers from dest addr to proxy owner\n\n\t\tsendFullContractBalance(_data.destAddr, user);\n\n\n\n\t\tDefisaverLogger(DEFISAVER_LOGGER).Log(address(this), msg.sender, \"AaveRepay\", abi.encode(_data.srcAddr, _data.destAddr, _data.srcAmount, destAmount));\n\n\t}\n\n\n\n\tfunction boost(ExchangeData memory _data, uint _gasCost) public payable burnGas(20) {\n\n\t\taddress lendingPoolCore = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPoolCore();\n\n\t\taddress lendingPool = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n\t\t(,,,,,,,,,bool collateralEnabled) = ILendingPool(lendingPool).getUserReserveData(_data.destAddr, address(this));\n\n\t\taddress payable user = payable(getUserAddress());\n\n\n\n\t\tuint256 maxBorrow = getMaxBorrow(_data.srcAddr, address(this));\n\n\t\t_data.srcAmount = _data.srcAmount > maxBorrow ? maxBorrow : _data.srcAmount;\n\n\n\n\t\t// borrow amount\n\n\t\tILendingPool(lendingPool).borrow(_data.srcAddr, _data.srcAmount, VARIABLE_RATE, AAVE_REFERRAL_CODE);\n\n\n\n\t\tuint256 destAmount;\n\n\t\tif (_data.destAddr != _data.srcAddr) {\n\n\t\t\t_data.srcAmount -= getFee(_data.srcAmount, user, _gasCost, _data.srcAddr);\n\n\t\t\t// swap\n\n\t\t\t(, destAmount) = _sell(_data);\n\n\t\t} else {\n\n\t\t\t_data.srcAmount -= getGasCost(_data.srcAmount, user, _gasCost, _data.srcAddr);\n\n\t\t\tdestAmount = _data.srcAmount;\n\n\t\t}\n\n\n\n\t\tif (_data.destAddr == ETH_ADDR) {\n\n\t\t\tILendingPool(lendingPool).deposit{value: destAmount}(_data.destAddr, destAmount, AAVE_REFERRAL_CODE);\n\n\t\t} else {\n\n\t\t\tapproveToken(_data.destAddr, lendingPoolCore);\n\n\t\t\tILendingPool(lendingPool).deposit(_data.destAddr, destAmount, AAVE_REFERRAL_CODE);\n\n\t\t}\n\n\n\n\t\tif (!collateralEnabled) {\n\n ILendingPool(lendingPool).setUserUseReserveAsCollateral(_data.destAddr, true);\n\n }\n\n\n\n\t\t// returning to msg.sender as it is the address that actually sent 0x fee\n\n\t\tsendContractBalance(ETH_ADDR, tx.origin, min(address(this).balance, msg.value));\n\n\t\t// send all leftovers from dest addr to proxy owner\n\n\t\tsendFullContractBalance(_data.destAddr, user);\n\n\n\n\t\tDefisaverLogger(DEFISAVER_LOGGER).Log(address(this), msg.sender, \"AaveBoost\", abi.encode(_data.srcAddr, _data.destAddr, _data.srcAmount, destAmount));\n\n\t}\n\n}\n\ncontract CompoundLoanInfo is CompoundSafetyRatio {\n\n\n\n struct LoanData {\n\n address user;\n\n uint128 ratio;\n\n address[] collAddr;\n\n address[] borrowAddr;\n\n uint[] collAmounts;\n\n uint[] borrowAmounts;\n\n }\n\n\n\n struct TokenInfo {\n\n address cTokenAddress;\n\n address underlyingTokenAddress;\n\n uint collateralFactor;\n\n uint price;\n\n }\n\n\n\n struct TokenInfoFull {\n\n address underlyingTokenAddress;\n\n uint supplyRate;\n\n uint borrowRate;\n\n uint exchangeRate;\n\n uint marketLiquidity;\n\n uint totalSupply;\n\n uint totalBorrow;\n\n uint collateralFactor;\n\n uint price;\n\n }\n\n\n\n address public constant ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n address public constant CETH_ADDRESS = 0x4Ddc2D193948926D02f9B1fE9e1daa0718270ED5;\n\n\n\n\n\n /// @notice Calcualted the ratio of coll/debt for a compound user\n\n /// @param _user Address of the user\n\n function getRatio(address _user) public view returns (uint) {\n\n // For each asset the account is in\n\n return getSafetyRatio(_user);\n\n }\n\n\n\n /// @notice Fetches Compound prices for tokens\n\n /// @param _cTokens Arr. of cTokens for which to get the prices\n\n /// @return prices Array of prices\n\n function getPrices(address[] memory _cTokens) public view returns (uint[] memory prices) {\n\n prices = new uint[](_cTokens.length);\n\n address oracleAddr = comp.oracle();\n\n\n\n for (uint i = 0; i < _cTokens.length; ++i) {\n\n prices[i] = CompoundOracleInterface(oracleAddr).getUnderlyingPrice(_cTokens[i]);\n\n }\n\n }\n\n\n\n /// @notice Fetches Compound collateral factors for tokens\n\n /// @param _cTokens Arr. of cTokens for which to get the coll. factors\n\n /// @return collFactors Array of coll. factors\n\n function getCollFactors(address[] memory _cTokens) public view returns (uint[] memory collFactors) {\n\n collFactors = new uint[](_cTokens.length);\n\n\n\n for (uint i = 0; i < _cTokens.length; ++i) {\n\n (, collFactors[i]) = comp.markets(_cTokens[i]);\n\n }\n\n }\n\n\n\n /// @notice Fetches all the collateral/debt address and amounts, denominated in usd\n\n /// @param _user Address of the user\n\n /// @return data LoanData information\n\n function getLoanData(address _user) public view returns (LoanData memory data) {\n\n address[] memory assets = comp.getAssetsIn(_user);\n\n address oracleAddr = comp.oracle();\n\n\n\n data = LoanData({\n\n user: _user,\n\n ratio: 0,\n\n collAddr: new address[](assets.length),\n\n borrowAddr: new address[](assets.length),\n\n collAmounts: new uint[](assets.length),\n\n borrowAmounts: new uint[](assets.length)\n\n });\n\n\n\n uint collPos = 0;\n\n uint borrowPos = 0;\n\n\n\n for (uint i = 0; i < assets.length; i++) {\n\n address asset = assets[i];\n\n\n\n (, uint cTokenBalance, uint borrowBalance, uint exchangeRateMantissa)\n\n = CTokenInterface(asset).getAccountSnapshot(_user);\n\n\n\n Exp memory oraclePrice;\n\n\n\n if (cTokenBalance != 0 || borrowBalance != 0) {\n\n oraclePrice = Exp({mantissa: CompoundOracleInterface(oracleAddr).getUnderlyingPrice(asset)});\n\n }\n\n\n\n // Sum up collateral in Usd\n\n if (cTokenBalance != 0) {\n\n Exp memory exchangeRate = Exp({mantissa: exchangeRateMantissa});\n\n (, Exp memory tokensToUsd) = mulExp(exchangeRate, oraclePrice);\n\n\n\n data.collAddr[collPos] = asset;\n\n (, data.collAmounts[collPos]) = mulScalarTruncate(tokensToUsd, cTokenBalance);\n\n collPos++;\n\n }\n\n\n\n // Sum up debt in Usd\n\n if (borrowBalance != 0) {\n\n data.borrowAddr[borrowPos] = asset;\n\n (, data.borrowAmounts[borrowPos]) = mulScalarTruncate(oraclePrice, borrowBalance);\n\n borrowPos++;\n\n }\n\n }\n\n\n\n data.ratio = uint128(getSafetyRatio(_user));\n\n\n\n return data;\n\n }\n\n\n\n function getTokenBalances(address _user, address[] memory _cTokens) public view returns (uint[] memory balances, uint[] memory borrows) {\n\n balances = new uint[](_cTokens.length);\n\n borrows = new uint[](_cTokens.length);\n\n\n\n for (uint i = 0; i < _cTokens.length; i++) {\n\n address asset = _cTokens[i];\n\n\n\n (, uint cTokenBalance, uint borrowBalance, uint exchangeRateMantissa)\n\n = CTokenInterface(asset).getAccountSnapshot(_user);\n\n\n\n Exp memory exchangeRate = Exp({mantissa: exchangeRateMantissa});\n\n (, balances[i]) = mulScalarTruncate(exchangeRate, cTokenBalance);\n\n\n\n borrows[i] = borrowBalance;\n\n }\n\n\n\n }\n\n\n\n /// @notice Fetches all the collateral/debt address and amounts, denominated in usd\n\n /// @param _users Addresses of the user\n\n /// @return loans Array of LoanData information\n\n function getLoanDataArr(address[] memory _users) public view returns (LoanData[] memory loans) {\n\n loans = new LoanData[](_users.length);\n\n\n\n for (uint i = 0; i < _users.length; ++i) {\n\n loans[i] = getLoanData(_users[i]);\n\n }\n\n }\n\n\n\n /// @notice Calcualted the ratio of coll/debt for a compound user\n\n /// @param _users Addresses of the user\n\n /// @return ratios Array of ratios\n\n function getRatios(address[] memory _users) public view returns (uint[] memory ratios) {\n\n ratios = new uint[](_users.length);\n\n\n\n for (uint i = 0; i < _users.length; ++i) {\n\n ratios[i] = getSafetyRatio(_users[i]);\n\n }\n\n }\n\n\n\n /// @notice Information about cTokens\n\n /// @param _cTokenAddresses Array of cTokens addresses\n\n /// @return tokens Array of cTokens infomartion\n\n function getTokensInfo(address[] memory _cTokenAddresses) public returns(TokenInfo[] memory tokens) {\n\n tokens = new TokenInfo[](_cTokenAddresses.length);\n\n address oracleAddr = comp.oracle();\n\n\n\n for (uint i = 0; i < _cTokenAddresses.length; ++i) {\n\n (, uint collFactor) = comp.markets(_cTokenAddresses[i]);\n\n\n\n tokens[i] = TokenInfo({\n\n cTokenAddress: _cTokenAddresses[i],\n\n underlyingTokenAddress: getUnderlyingAddr(_cTokenAddresses[i]),\n\n collateralFactor: collFactor,\n\n price: CompoundOracleInterface(oracleAddr).getUnderlyingPrice(_cTokenAddresses[i])\n\n });\n\n }\n\n }\n\n\n\n /// @notice Information about cTokens\n\n /// @param _cTokenAddresses Array of cTokens addresses\n\n /// @return tokens Array of cTokens infomartion\n\n function getFullTokensInfo(address[] memory _cTokenAddresses) public returns(TokenInfoFull[] memory tokens) {\n\n tokens = new TokenInfoFull[](_cTokenAddresses.length);\n\n address oracleAddr = comp.oracle();\n\n\n\n for (uint i = 0; i < _cTokenAddresses.length; ++i) {\n\n (, uint collFactor) = comp.markets(_cTokenAddresses[i]);\n\n CTokenInterface cToken = CTokenInterface(_cTokenAddresses[i]);\n\n\n\n tokens[i] = TokenInfoFull({\n\n underlyingTokenAddress: getUnderlyingAddr(_cTokenAddresses[i]),\n\n supplyRate: cToken.supplyRatePerBlock(),\n\n borrowRate: cToken.borrowRatePerBlock(),\n\n exchangeRate: cToken.exchangeRateCurrent(),\n\n marketLiquidity: cToken.getCash(),\n\n totalSupply: cToken.totalSupply(),\n\n totalBorrow: cToken.totalBorrowsCurrent(),\n\n collateralFactor: collFactor,\n\n price: CompoundOracleInterface(oracleAddr).getUnderlyingPrice(_cTokenAddresses[i])\n\n });\n\n }\n\n }\n\n\n\n /// @notice Returns the underlying address of the cToken asset\n\n /// @param _cTokenAddress cToken address\n\n /// @return Token address of the cToken specified\n\n function getUnderlyingAddr(address _cTokenAddress) internal returns (address) {\n\n if (_cTokenAddress == CETH_ADDRESS) {\n\n return ETH_ADDRESS;\n\n } else {\n\n return CTokenInterface(_cTokenAddress).underlying();\n\n }\n\n }\n\n}\n\ncontract CompoundCreateReceiver is FlashLoanReceiverBase, SaverExchangeCore {\n\n\n\n ILendingPoolAddressesProvider public LENDING_POOL_ADDRESS_PROVIDER = ILendingPoolAddressesProvider(0x24a42fD28C976A61Df5D00D0599C34c4f90748c8);\n\n ShifterRegistry public constant shifterRegistry = ShifterRegistry(0x2E82103bD91053C781aaF39da17aE58ceE39d0ab);\n\n\n\n address public constant ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n address payable public constant WALLET_ADDR = 0x322d58b9E75a6918f7e7849AEe0fF09369977e08;\n\n address public constant DISCOUNT_ADDR = 0x1b14E8D511c9A4395425314f849bD737BAF8208F;\n\n\n\n // solhint-disable-next-line no-empty-blocks\n\n constructor() public FlashLoanReceiverBase(LENDING_POOL_ADDRESS_PROVIDER) {}\n\n\n\n struct CompCreateData {\n\n address payable proxyAddr;\n\n bytes proxyData;\n\n address cCollAddr;\n\n address cDebtAddr;\n\n }\n\n\n\n /// @notice Called by Aave when sending back the FL amount\n\n /// @param _reserve The address of the borrowed token\n\n /// @param _amount Amount of FL tokens received\n\n /// @param _fee FL Aave fee\n\n /// @param _params The params that are sent from the original FL caller contract\n\n function executeOperation(\n\n address _reserve,\n\n uint256 _amount,\n\n uint256 _fee,\n\n bytes calldata _params)\n\n external override {\n\n // Format the call data for DSProxy\n\n (CompCreateData memory compCreate, ExchangeData memory exchangeData)\n\n = packFunctionCall(_amount, _fee, _params);\n\n\n\n\n\n address leveragedAsset = _reserve;\n\n\n\n // If the assets are different\n\n if (compCreate.cCollAddr != compCreate.cDebtAddr) {\n\n (, uint sellAmount) = _sell(exchangeData);\n\n getFee(sellAmount, exchangeData.destAddr, compCreate.proxyAddr);\n\n\n\n leveragedAsset = exchangeData.destAddr;\n\n }\n\n\n\n // Send amount to DSProxy\n\n sendToProxy(compCreate.proxyAddr, leveragedAsset);\n\n\n\n address compOpenProxy = shifterRegistry.getAddr(\"COMP_SHIFTER\");\n\n\n\n // Execute the DSProxy call\n\n DSProxyInterface(compCreate.proxyAddr).execute(compOpenProxy, compCreate.proxyData);\n\n\n\n // Repay the loan with the money DSProxy sent back\n\n transferFundsBackToPoolInternal(_reserve, _amount.add(_fee));\n\n\n\n // if there is some eth left (0x fee), return it to user\n\n if (address(this).balance > 0) {\n\n // solhint-disable-next-line avoid-tx-origin\n\n tx.origin.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n /// @notice Formats function data call so we can call it through DSProxy\n\n /// @param _amount Amount of FL\n\n /// @param _fee Fee of the FL\n\n /// @param _params Saver proxy params\n\n function packFunctionCall(uint _amount, uint _fee, bytes memory _params) internal pure returns (CompCreateData memory compCreate, ExchangeData memory exchangeData) {\n\n (\n\n uint[4] memory numData, // srcAmount, destAmount, minPrice, price0x\n\n address[6] memory cAddresses, // cCollAddr, cDebtAddr, srcAddr, destAddr, exchangeAddr, wrapper\n\n bytes memory callData,\n\n address proxy\n\n )\n\n = abi.decode(_params, (uint256[4],address[6],bytes,address));\n\n\n\n bytes memory proxyData = abi.encodeWithSignature(\n\n \"open(address,address,uint256)\",\n\n cAddresses[0], cAddresses[1], (_amount + _fee));\n\n\n\n exchangeData = SaverExchangeCore.ExchangeData({\n\n srcAddr: cAddresses[2],\n\n destAddr: cAddresses[3],\n\n srcAmount: numData[0],\n\n destAmount: numData[1],\n\n minPrice: numData[2],\n\n wrapper: cAddresses[5],\n\n exchangeAddr: cAddresses[4],\n\n callData: callData,\n\n price0x: numData[3]\n\n });\n\n\n\n compCreate = CompCreateData({\n\n proxyAddr: payable(proxy),\n\n proxyData: proxyData,\n\n cCollAddr: cAddresses[0],\n\n cDebtAddr: cAddresses[1]\n\n });\n\n\n\n return (compCreate, exchangeData);\n\n }\n\n\n\n /// @notice Send the FL funds received to DSProxy\n\n /// @param _proxy DSProxy address\n\n /// @param _reserve Token address\n\n function sendToProxy(address payable _proxy, address _reserve) internal {\n\n if (_reserve != ETH_ADDRESS) {\n\n ERC20(_reserve).safeTransfer(_proxy, ERC20(_reserve).balanceOf(address(this)));\n\n } else {\n\n _proxy.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n function getFee(uint _amount, address _tokenAddr, address _proxy) internal returns (uint feeAmount) {\n\n uint fee = 400;\n\n\n\n DSProxy proxy = DSProxy(payable(_proxy));\n\n address user = proxy.owner();\n\n\n\n if (Discount(DISCOUNT_ADDR).isCustomFeeSet(user)) {\n\n fee = Discount(DISCOUNT_ADDR).getCustomServiceFee(user);\n\n }\n\n\n\n feeAmount = (fee == 0) ? 0 : (_amount / fee);\n\n\n\n // fee can't go over 20% of the whole amount\n\n if (feeAmount > (_amount / 5)) {\n\n feeAmount = _amount / 5;\n\n }\n\n\n\n if (_tokenAddr == ETH_ADDRESS) {\n\n WALLET_ADDR.transfer(feeAmount);\n\n } else {\n\n ERC20(_tokenAddr).safeTransfer(WALLET_ADDR, feeAmount);\n\n }\n\n }\n\n\n\n // solhint-disable-next-line no-empty-blocks\n\n receive() external override(FlashLoanReceiverBase, SaverExchangeCore) payable {}\n\n}\n\ncontract CompoundSaverFlashLoan is FlashLoanReceiverBase, SaverExchangeCore {\n\n ILendingPoolAddressesProvider public LENDING_POOL_ADDRESS_PROVIDER = ILendingPoolAddressesProvider(0x24a42fD28C976A61Df5D00D0599C34c4f90748c8);\n\n\n\n address payable public COMPOUND_SAVER_FLASH_PROXY = 0xcEAb38B5C88F33Dabe4D31BDD384E08215526632;\n\n address public constant ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n\n\n address public owner;\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n constructor()\n\n FlashLoanReceiverBase(LENDING_POOL_ADDRESS_PROVIDER)\n\n public {\n\n owner = msg.sender;\n\n }\n\n\n\n /// @notice Called by Aave when sending back the FL amount\n\n /// @param _reserve The address of the borrowed token\n\n /// @param _amount Amount of FL tokens received\n\n /// @param _fee FL Aave fee\n\n /// @param _params The params that are sent from the original FL caller contract\n\n function executeOperation(\n\n address _reserve,\n\n uint256 _amount,\n\n uint256 _fee,\n\n bytes calldata _params)\n\n external override {\n\n // Format the call data for DSProxy\n\n (bytes memory proxyData, address payable proxyAddr) = packFunctionCall(_amount, _fee, _params);\n\n\n\n // Send Flash loan amount to DSProxy\n\n sendLoanToProxy(proxyAddr, _reserve, _amount);\n\n\n\n // Execute the DSProxy call\n\n DSProxyInterface(proxyAddr).execute(COMPOUND_SAVER_FLASH_PROXY, proxyData);\n\n\n\n // Repay the loan with the money DSProxy sent back\n\n transferFundsBackToPoolInternal(_reserve, _amount.add(_fee));\n\n\n\n // if there is some eth left (0x fee), return it to user\n\n if (address(this).balance > 0) {\n\n tx.origin.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n /// @notice Formats function data call so we can call it through DSProxy\n\n /// @param _amount Amount of FL\n\n /// @param _fee Fee of the FL\n\n /// @param _params Saver proxy params\n\n /// @return proxyData Formated function call data\n\n function packFunctionCall(uint _amount, uint _fee, bytes memory _params) internal pure returns (bytes memory proxyData, address payable) {\n\n (\n\n bytes memory exDataBytes,\n\n address[2] memory cAddresses, // cCollAddress, cBorrowAddress\n\n uint256 gasCost,\n\n bool isRepay,\n\n address payable proxyAddr\n\n )\n\n = abi.decode(_params, (bytes,address[2],uint256,bool,address));\n\n\n\n ExchangeData memory _exData = unpackExchangeData(exDataBytes);\n\n\n\n uint[2] memory flashLoanData = [_amount, _fee];\n\n\n\n if (isRepay) {\n\n proxyData = abi.encodeWithSignature(\"flashRepay((address,address,uint256,uint256,uint256,address,address,bytes,uint256),address[2],uint256,uint256[2])\", _exData, cAddresses, gasCost, flashLoanData);\n\n } else {\n\n proxyData = abi.encodeWithSignature(\"flashBoost((address,address,uint256,uint256,uint256,address,address,bytes,uint256),address[2],uint256,uint256[2])\", _exData, cAddresses, gasCost, flashLoanData);\n\n }\n\n\n\n return (proxyData, proxyAddr);\n\n }\n\n\n\n /// @notice Send the FL funds received to DSProxy\n\n /// @param _proxy DSProxy address\n\n /// @param _reserve Token address\n\n /// @param _amount Amount of tokens\n\n function sendLoanToProxy(address payable _proxy, address _reserve, uint _amount) internal {\n\n if (_reserve != ETH_ADDRESS) {\n\n ERC20(_reserve).safeTransfer(_proxy, _amount);\n\n }\n\n\n\n _proxy.transfer(address(this).balance);\n\n }\n\n\n\n receive() external override(SaverExchangeCore, FlashLoanReceiverBase) payable {}\n\n}\n\ncontract CompoundSaverFlashProxy is SaverExchangeCore, CompoundSaverHelper {\n\n\n\n address public constant DEFISAVER_LOGGER = 0x5c55B921f590a89C1Ebe84dF170E655a82b62126;\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n /// @notice Repays the position and sends tokens back for FL\n\n /// @param _exData Exchange data\n\n /// @param _cAddresses cTokens addreses and exchange [cCollAddress, cBorrowAddress]\n\n /// @param _gasCost Gas cost for transaction\n\n /// @param _flashLoanData Data about FL [amount, fee]\n\n function flashRepay(\n\n ExchangeData memory _exData,\n\n address[2] memory _cAddresses, // cCollAddress, cBorrowAddress\n\n uint256 _gasCost,\n\n uint[2] memory _flashLoanData // amount, fee\n\n ) public payable {\n\n enterMarket(_cAddresses[0], _cAddresses[1]);\n\n\n\n address payable user = payable(getUserAddress());\n\n uint flashBorrowed = _flashLoanData[0] + _flashLoanData[1];\n\n\n\n uint maxColl = getMaxCollateral(_cAddresses[0], address(this));\n\n\n\n // draw max coll\n\n require(CTokenInterface(_cAddresses[0]).redeemUnderlying(maxColl) == 0);\n\n\n\n address collToken = getUnderlyingAddr(_cAddresses[0]);\n\n address borrowToken = getUnderlyingAddr(_cAddresses[1]);\n\n\n\n uint swapAmount = 0;\n\n\n\n if (collToken != borrowToken) {\n\n // swap max coll + loanAmount\n\n _exData.srcAmount = maxColl + _flashLoanData[0];\n\n (,swapAmount) = _sell(_exData);\n\n\n\n // get fee\n\n swapAmount -= getFee(swapAmount, user, _gasCost, _cAddresses[1]);\n\n } else {\n\n swapAmount = (maxColl + _flashLoanData[0]);\n\n swapAmount -= getGasCost(swapAmount, _gasCost, _cAddresses[1]);\n\n }\n\n\n\n // payback debt\n\n paybackDebt(swapAmount, _cAddresses[1], borrowToken, user);\n\n\n\n // draw collateral for loanAmount + loanFee\n\n require(CTokenInterface(_cAddresses[0]).redeemUnderlying(flashBorrowed) == 0);\n\n\n\n // repay flash loan\n\n returnFlashLoan(collToken, flashBorrowed);\n\n\n\n DefisaverLogger(DEFISAVER_LOGGER).Log(address(this), msg.sender, \"CompoundRepay\", abi.encode(_exData.srcAmount, swapAmount, collToken, borrowToken));\n\n }\n\n\n\n /// @notice Boosts the position and sends tokens back for FL\n\n /// @param _exData Exchange data\n\n /// @param _cAddresses cTokens addreses and exchange [cCollAddress, cBorrowAddress]\n\n /// @param _gasCost Gas cost for specific transaction\n\n /// @param _flashLoanData Data about FL [amount, fee]\n\n function flashBoost(\n\n ExchangeData memory _exData,\n\n address[2] memory _cAddresses, // cCollAddress, cBorrowAddress\n\n uint256 _gasCost,\n\n uint[2] memory _flashLoanData // amount, fee\n\n ) public payable {\n\n enterMarket(_cAddresses[0], _cAddresses[1]);\n\n\n\n address payable user = payable(getUserAddress());\n\n uint flashBorrowed = _flashLoanData[0] + _flashLoanData[1];\n\n\n\n // borrow max amount\n\n uint borrowAmount = getMaxBorrow(_cAddresses[1], address(this));\n\n require(CTokenInterface(_cAddresses[1]).borrow(borrowAmount) == 0);\n\n\n\n address collToken = getUnderlyingAddr(_cAddresses[0]);\n\n address borrowToken = getUnderlyingAddr(_cAddresses[1]);\n\n\n\n uint swapAmount = 0;\n\n\n\n if (collToken != borrowToken) {\n\n // get dfs fee\n\n borrowAmount -= getFee((borrowAmount + _flashLoanData[0]), user, _gasCost, _cAddresses[1]);\n\n _exData.srcAmount = (borrowAmount + _flashLoanData[0]);\n\n\n\n (,swapAmount) = _sell(_exData);\n\n } else {\n\n swapAmount = (borrowAmount + _flashLoanData[0]);\n\n swapAmount -= getGasCost(swapAmount, _gasCost, _cAddresses[1]);\n\n }\n\n\n\n // deposit swaped collateral\n\n depositCollateral(collToken, _cAddresses[0], swapAmount);\n\n\n\n // borrow token to repay flash loan\n\n require(CTokenInterface(_cAddresses[1]).borrow(flashBorrowed) == 0);\n\n\n\n // repay flash loan\n\n returnFlashLoan(borrowToken, flashBorrowed);\n\n\n\n DefisaverLogger(DEFISAVER_LOGGER).Log(address(this), msg.sender, \"CompoundBoost\", abi.encode(_exData.srcAmount, swapAmount, collToken, borrowToken));\n\n }\n\n\n\n /// @notice Helper method to deposit tokens in Compound\n\n /// @param _collToken Token address of the collateral\n\n /// @param _cCollToken CToken address of the collateral\n\n /// @param _depositAmount Amount to deposit\n\n function depositCollateral(address _collToken, address _cCollToken, uint _depositAmount) internal {\n\n approveCToken(_collToken, _cCollToken);\n\n\n\n if (_collToken != ETH_ADDRESS) {\n\n require(CTokenInterface(_cCollToken).mint(_depositAmount) == 0);\n\n } else {\n\n CEtherInterface(_cCollToken).mint{value: _depositAmount}(); // reverts on fail\n\n }\n\n }\n\n\n\n /// @notice Returns the tokens/ether to the msg.sender which is the FL contract\n\n /// @param _tokenAddr Address of token which we return\n\n /// @param _amount Amount to return\n\n function returnFlashLoan(address _tokenAddr, uint _amount) internal {\n\n if (_tokenAddr != ETH_ADDRESS) {\n\n ERC20(_tokenAddr).safeTransfer(msg.sender, _amount);\n\n }\n\n\n\n msg.sender.transfer(address(this).balance);\n\n }\n\n\n\n}\n\ncontract CompoundSaverProxy is CompoundSaverHelper, SaverExchangeCore {\n\n\n\n DefisaverLogger public constant logger = DefisaverLogger(0x5c55B921f590a89C1Ebe84dF170E655a82b62126);\n\n\n\n /// @notice Withdraws collateral, converts to borrowed token and repays debt\n\n /// @dev Called through the DSProxy\n\n /// @param _exData Exchange data\n\n /// @param _cAddresses Coll/Debt addresses [cCollAddress, cBorrowAddress]\n\n /// @param _gasCost Gas cost for specific transaction\n\n function repay(\n\n ExchangeData memory _exData,\n\n address[2] memory _cAddresses, // cCollAddress, cBorrowAddress\n\n uint256 _gasCost\n\n ) public payable {\n\n enterMarket(_cAddresses[0], _cAddresses[1]);\n\n\n\n address payable user = payable(getUserAddress());\n\n\n\n uint maxColl = getMaxCollateral(_cAddresses[0], address(this));\n\n\n\n uint collAmount = (_exData.srcAmount > maxColl) ? maxColl : _exData.srcAmount;\n\n\n\n require(CTokenInterface(_cAddresses[0]).redeemUnderlying(collAmount) == 0);\n\n\n\n address collToken = getUnderlyingAddr(_cAddresses[0]);\n\n address borrowToken = getUnderlyingAddr(_cAddresses[1]);\n\n\n\n uint swapAmount = 0;\n\n\n\n if (collToken != borrowToken) {\n\n (, swapAmount) = _sell(_exData);\n\n swapAmount -= getFee(swapAmount, user, _gasCost, _cAddresses[1]);\n\n } else {\n\n swapAmount = collAmount;\n\n swapAmount -= getGasCost(swapAmount, _gasCost, _cAddresses[1]);\n\n }\n\n\n\n paybackDebt(swapAmount, _cAddresses[1], borrowToken, user);\n\n\n\n // handle 0x fee\n\n tx.origin.transfer(address(this).balance);\n\n\n\n // log amount, collToken, borrowToken\n\n logger.Log(address(this), msg.sender, \"CompoundRepay\", abi.encode(_exData.srcAmount, swapAmount, collToken, borrowToken));\n\n }\n\n\n\n /// @notice Borrows token, converts to collateral, and adds to position\n\n /// @dev Called through the DSProxy\n\n /// @param _exData Exchange data\n\n /// @param _cAddresses Coll/Debt addresses [cCollAddress, cBorrowAddress]\n\n /// @param _gasCost Gas cost for specific transaction\n\n function boost(\n\n ExchangeData memory _exData,\n\n address[2] memory _cAddresses, // cCollAddress, cBorrowAddress\n\n uint256 _gasCost\n\n ) public payable {\n\n enterMarket(_cAddresses[0], _cAddresses[1]);\n\n\n\n address payable user = payable(getUserAddress());\n\n\n\n uint maxBorrow = getMaxBorrow(_cAddresses[1], address(this));\n\n uint borrowAmount = (_exData.srcAmount > maxBorrow) ? maxBorrow : _exData.srcAmount;\n\n\n\n require(CTokenInterface(_cAddresses[1]).borrow(borrowAmount) == 0);\n\n\n\n address collToken = getUnderlyingAddr(_cAddresses[0]);\n\n address borrowToken = getUnderlyingAddr(_cAddresses[1]);\n\n\n\n uint swapAmount = 0;\n\n\n\n if (collToken != borrowToken) {\n\n borrowAmount -= getFee(borrowAmount, user, _gasCost, _cAddresses[1]);\n\n\n\n _exData.srcAmount = borrowAmount;\n\n (,swapAmount) = _sell(_exData);\n\n } else {\n\n swapAmount = borrowAmount;\n\n swapAmount -= getGasCost(swapAmount, _gasCost, _cAddresses[1]);\n\n }\n\n\n\n approveCToken(collToken, _cAddresses[0]);\n\n\n\n if (collToken != ETH_ADDRESS) {\n\n require(CTokenInterface(_cAddresses[0]).mint(swapAmount) == 0);\n\n } else {\n\n CEtherInterface(_cAddresses[0]).mint{value: swapAmount}(); // reverts on fail\n\n }\n\n\n\n // handle 0x fee\n\n tx.origin.transfer(address(this).balance);\n\n\n\n // log amount, collToken, borrowToken\n\n logger.Log(address(this), msg.sender, \"CompoundBoost\", abi.encode(_exData.srcAmount, swapAmount, collToken, borrowToken));\n\n }\n\n\n\n}\n\ncontract CreamSaverFlashLoan is FlashLoanReceiverBase, SaverExchangeCore {\n\n ILendingPoolAddressesProvider public LENDING_POOL_ADDRESS_PROVIDER = ILendingPoolAddressesProvider(0x24a42fD28C976A61Df5D00D0599C34c4f90748c8);\n\n\n\n address payable public COMPOUND_SAVER_FLASH_PROXY = 0xcEAb38B5C88F33Dabe4D31BDD384E08215526632;\n\n address public constant ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n\n\n address public owner;\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n constructor()\n\n FlashLoanReceiverBase(LENDING_POOL_ADDRESS_PROVIDER)\n\n public {\n\n owner = msg.sender;\n\n }\n\n\n\n /// @notice Called by Aave when sending back the FL amount\n\n /// @param _reserve The address of the borrowed token\n\n /// @param _amount Amount of FL tokens received\n\n /// @param _fee FL Aave fee\n\n /// @param _params The params that are sent from the original FL caller contract\n\n function executeOperation(\n\n address _reserve,\n\n uint256 _amount,\n\n uint256 _fee,\n\n bytes calldata _params)\n\n external override {\n\n // Format the call data for DSProxy\n\n (bytes memory proxyData, address payable proxyAddr) = packFunctionCall(_amount, _fee, _params);\n\n\n\n // Send Flash loan amount to DSProxy\n\n sendLoanToProxy(proxyAddr, _reserve, _amount);\n\n\n\n // Execute the DSProxy call\n\n DSProxyInterface(proxyAddr).execute(COMPOUND_SAVER_FLASH_PROXY, proxyData);\n\n\n\n // Repay the loan with the money DSProxy sent back\n\n transferFundsBackToPoolInternal(_reserve, _amount.add(_fee));\n\n\n\n // if there is some eth left (0x fee), return it to user\n\n if (address(this).balance > 0) {\n\n tx.origin.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n /// @notice Formats function data call so we can call it through DSProxy\n\n /// @param _amount Amount of FL\n\n /// @param _fee Fee of the FL\n\n /// @param _params Saver proxy params\n\n /// @return proxyData Formated function call data\n\n function packFunctionCall(uint _amount, uint _fee, bytes memory _params) internal pure returns (bytes memory proxyData, address payable) {\n\n (\n\n bytes memory exDataBytes,\n\n address[2] memory cAddresses, // cCollAddress, cBorrowAddress\n\n uint256 gasCost,\n\n bool isRepay,\n\n address payable proxyAddr\n\n )\n\n = abi.decode(_params, (bytes,address[2],uint256,bool,address));\n\n\n\n ExchangeData memory _exData = unpackExchangeData(exDataBytes);\n\n\n\n uint[2] memory flashLoanData = [_amount, _fee];\n\n\n\n if (isRepay) {\n\n proxyData = abi.encodeWithSignature(\"flashRepay((address,address,uint256,uint256,uint256,address,address,bytes,uint256),address[2],uint256,uint256[2])\", _exData, cAddresses, gasCost, flashLoanData);\n\n } else {\n\n proxyData = abi.encodeWithSignature(\"flashBoost((address,address,uint256,uint256,uint256,address,address,bytes,uint256),address[2],uint256,uint256[2])\", _exData, cAddresses, gasCost, flashLoanData);\n\n }\n\n\n\n return (proxyData, proxyAddr);\n\n }\n\n\n\n /// @notice Send the FL funds received to DSProxy\n\n /// @param _proxy DSProxy address\n\n /// @param _reserve Token address\n\n /// @param _amount Amount of tokens\n\n function sendLoanToProxy(address payable _proxy, address _reserve, uint _amount) internal {\n\n if (_reserve != ETH_ADDRESS) {\n\n ERC20(_reserve).safeTransfer(_proxy, _amount);\n\n }\n\n\n\n _proxy.transfer(address(this).balance);\n\n }\n\n\n\n receive() external override(SaverExchangeCore, FlashLoanReceiverBase) payable {}\n\n}\n\ncontract CreamSaverFlashProxy is SaverExchangeCore, CreamSaverHelper {\n\n\n\n address public constant DEFISAVER_LOGGER = 0x5c55B921f590a89C1Ebe84dF170E655a82b62126;\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n /// @notice Repays the position and sends tokens back for FL\n\n /// @param _exData Exchange data\n\n /// @param _cAddresses cTokens addreses and exchange [cCollAddress, cBorrowAddress]\n\n /// @param _gasCost Gas cost for transaction\n\n /// @param _flashLoanData Data about FL [amount, fee]\n\n function flashRepay(\n\n ExchangeData memory _exData,\n\n address[2] memory _cAddresses, // cCollAddress, cBorrowAddress\n\n uint256 _gasCost,\n\n uint[2] memory _flashLoanData // amount, fee\n\n ) public payable {\n\n enterMarket(_cAddresses[0], _cAddresses[1]);\n\n\n\n address payable user = payable(getUserAddress());\n\n uint flashBorrowed = _flashLoanData[0] + _flashLoanData[1];\n\n\n\n uint maxColl = getMaxCollateral(_cAddresses[0], address(this));\n\n\n\n // draw max coll\n\n require(CTokenInterface(_cAddresses[0]).redeemUnderlying(maxColl) == 0);\n\n\n\n address collToken = getUnderlyingAddr(_cAddresses[0]);\n\n address borrowToken = getUnderlyingAddr(_cAddresses[1]);\n\n\n\n uint swapAmount = 0;\n\n\n\n if (collToken != borrowToken) {\n\n // swap max coll + loanAmount\n\n _exData.srcAmount = maxColl + _flashLoanData[0];\n\n (,swapAmount) = _sell(_exData);\n\n\n\n // get fee\n\n swapAmount -= getFee(swapAmount, user, _gasCost, _cAddresses[1]);\n\n } else {\n\n swapAmount = (maxColl + _flashLoanData[0]);\n\n swapAmount -= getGasCost(swapAmount, _gasCost, _cAddresses[1]);\n\n }\n\n\n\n // payback debt\n\n paybackDebt(swapAmount, _cAddresses[1], borrowToken, user);\n\n\n\n // draw collateral for loanAmount + loanFee\n\n require(CTokenInterface(_cAddresses[0]).redeemUnderlying(flashBorrowed) == 0);\n\n\n\n // repay flash loan\n\n returnFlashLoan(collToken, flashBorrowed);\n\n\n\n DefisaverLogger(DEFISAVER_LOGGER).Log(address(this), msg.sender, \"CreamRepay\", abi.encode(_exData.srcAmount, swapAmount, collToken, borrowToken));\n\n }\n\n\n\n /// @notice Boosts the position and sends tokens back for FL\n\n /// @param _exData Exchange data\n\n /// @param _cAddresses cTokens addreses and exchange [cCollAddress, cBorrowAddress]\n\n /// @param _gasCost Gas cost for specific transaction\n\n /// @param _flashLoanData Data about FL [amount, fee]\n\n function flashBoost(\n\n ExchangeData memory _exData,\n\n address[2] memory _cAddresses, // cCollAddress, cBorrowAddress\n\n uint256 _gasCost,\n\n uint[2] memory _flashLoanData // amount, fee\n\n ) public payable {\n\n enterMarket(_cAddresses[0], _cAddresses[1]);\n\n\n\n address payable user = payable(getUserAddress());\n\n uint flashBorrowed = _flashLoanData[0] + _flashLoanData[1];\n\n\n\n // borrow max amount\n\n uint borrowAmount = getMaxBorrow(_cAddresses[1], address(this));\n\n require(CTokenInterface(_cAddresses[1]).borrow(borrowAmount) == 0);\n\n\n\n address collToken = getUnderlyingAddr(_cAddresses[0]);\n\n address borrowToken = getUnderlyingAddr(_cAddresses[1]);\n\n\n\n uint swapAmount = 0;\n\n\n\n if (collToken != borrowToken) {\n\n // get dfs fee\n\n borrowAmount -= getFee((borrowAmount + _flashLoanData[0]), user, _gasCost, _cAddresses[1]);\n\n _exData.srcAmount = (borrowAmount + _flashLoanData[0]);\n\n\n\n (,swapAmount) = _sell(_exData);\n\n } else {\n\n swapAmount = (borrowAmount + _flashLoanData[0]);\n\n swapAmount -= getGasCost(swapAmount, _gasCost, _cAddresses[1]);\n\n }\n\n\n\n // deposit swaped collateral\n\n depositCollateral(collToken, _cAddresses[0], swapAmount);\n\n\n\n // borrow token to repay flash loan\n\n require(CTokenInterface(_cAddresses[1]).borrow(flashBorrowed) == 0);\n\n\n\n // repay flash loan\n\n returnFlashLoan(borrowToken, flashBorrowed);\n\n\n\n DefisaverLogger(DEFISAVER_LOGGER).Log(address(this), msg.sender, \"CreamBoost\", abi.encode(_exData.srcAmount, swapAmount, collToken, borrowToken));\n\n }\n\n\n\n /// @notice Helper method to deposit tokens in Compound\n\n /// @param _collToken Token address of the collateral\n\n /// @param _cCollToken CToken address of the collateral\n\n /// @param _depositAmount Amount to deposit\n\n function depositCollateral(address _collToken, address _cCollToken, uint _depositAmount) internal {\n\n approveCToken(_collToken, _cCollToken);\n\n\n\n if (_collToken != ETH_ADDRESS) {\n\n require(CTokenInterface(_cCollToken).mint(_depositAmount) == 0);\n\n } else {\n\n CEtherInterface(_cCollToken).mint{value: _depositAmount}(); // reverts on fail\n\n }\n\n }\n\n\n\n /// @notice Returns the tokens/ether to the msg.sender which is the FL contract\n\n /// @param _tokenAddr Address of token which we return\n\n /// @param _amount Amount to return\n\n function returnFlashLoan(address _tokenAddr, uint _amount) internal {\n\n if (_tokenAddr != ETH_ADDRESS) {\n\n ERC20(_tokenAddr).safeTransfer(msg.sender, _amount);\n\n }\n\n\n\n msg.sender.transfer(address(this).balance);\n\n }\n\n\n\n}\n\ncontract CreamSaverProxy is CreamSaverHelper, SaverExchangeCore {\n\n\n\n DefisaverLogger public constant logger = DefisaverLogger(0x5c55B921f590a89C1Ebe84dF170E655a82b62126);\n\n\n\n /// @notice Withdraws collateral, converts to borrowed token and repays debt\n\n /// @dev Called through the DSProxy\n\n /// @param _exData Exchange data\n\n /// @param _cAddresses Coll/Debt addresses [cCollAddress, cBorrowAddress]\n\n /// @param _gasCost Gas cost for specific transaction\n\n function repay(\n\n ExchangeData memory _exData,\n\n address[2] memory _cAddresses, // cCollAddress, cBorrowAddress\n\n uint256 _gasCost\n\n ) public payable {\n\n enterMarket(_cAddresses[0], _cAddresses[1]);\n\n\n\n address payable user = payable(getUserAddress());\n\n\n\n uint maxColl = getMaxCollateral(_cAddresses[0], address(this));\n\n\n\n uint collAmount = (_exData.srcAmount > maxColl) ? maxColl : _exData.srcAmount;\n\n\n\n require(CTokenInterface(_cAddresses[0]).redeemUnderlying(collAmount) == 0);\n\n\n\n address collToken = getUnderlyingAddr(_cAddresses[0]);\n\n address borrowToken = getUnderlyingAddr(_cAddresses[1]);\n\n\n\n uint swapAmount = 0;\n\n\n\n if (collToken != borrowToken) {\n\n (, swapAmount) = _sell(_exData);\n\n swapAmount -= getFee(swapAmount, user, _gasCost, _cAddresses[1]);\n\n } else {\n\n swapAmount = collAmount;\n\n swapAmount -= getGasCost(swapAmount, _gasCost, _cAddresses[1]);\n\n }\n\n\n\n paybackDebt(swapAmount, _cAddresses[1], borrowToken, user);\n\n\n\n // handle 0x fee\n\n tx.origin.transfer(address(this).balance);\n\n\n\n // log amount, collToken, borrowToken\n\n logger.Log(address(this), msg.sender, \"CreamRepay\", abi.encode(_exData.srcAmount, swapAmount, collToken, borrowToken));\n\n }\n\n\n\n /// @notice Borrows token, converts to collateral, and adds to position\n\n /// @dev Called through the DSProxy\n\n /// @param _exData Exchange data\n\n /// @param _cAddresses Coll/Debt addresses [cCollAddress, cBorrowAddress]\n\n /// @param _gasCost Gas cost for specific transaction\n\n function boost(\n\n ExchangeData memory _exData,\n\n address[2] memory _cAddresses, // cCollAddress, cBorrowAddress\n\n uint256 _gasCost\n\n ) public payable {\n\n enterMarket(_cAddresses[0], _cAddresses[1]);\n\n\n\n address payable user = payable(getUserAddress());\n\n\n\n uint maxBorrow = getMaxBorrow(_cAddresses[1], address(this));\n\n uint borrowAmount = (_exData.srcAmount > maxBorrow) ? maxBorrow : _exData.srcAmount;\n\n\n\n require(CTokenInterface(_cAddresses[1]).borrow(borrowAmount) == 0);\n\n\n\n address collToken = getUnderlyingAddr(_cAddresses[0]);\n\n address borrowToken = getUnderlyingAddr(_cAddresses[1]);\n\n\n\n uint swapAmount = 0;\n\n\n\n if (collToken != borrowToken) {\n\n borrowAmount -= getFee(borrowAmount, user, _gasCost, _cAddresses[1]);\n\n\n\n _exData.srcAmount = borrowAmount;\n\n (,swapAmount) = _sell(_exData);\n\n } else {\n\n swapAmount = borrowAmount;\n\n swapAmount -= getGasCost(swapAmount, _gasCost, _cAddresses[1]);\n\n }\n\n\n\n approveCToken(collToken, _cAddresses[0]);\n\n\n\n if (collToken != ETH_ADDRESS) {\n\n require(CTokenInterface(_cAddresses[0]).mint(swapAmount) == 0);\n\n } else {\n\n CEtherInterface(_cAddresses[0]).mint{value: swapAmount}(); // reverts on fail\n\n }\n\n\n\n // handle 0x fee\n\n tx.origin.transfer(address(this).balance);\n\n\n\n // log amount, collToken, borrowToken\n\n logger.Log(address(this), msg.sender, \"CreamBoost\", abi.encode(_exData.srcAmount, swapAmount, collToken, borrowToken));\n\n }\n\n\n\n}\n\ncontract SaverExchange is SaverExchangeCore, AdminAuth, GasBurner {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n uint256 public constant SERVICE_FEE = 800; // 0.125% Fee\n\n\n\n // solhint-disable-next-line const-name-snakecase\n\n DefisaverLogger public constant logger = DefisaverLogger(0x5c55B921f590a89C1Ebe84dF170E655a82b62126);\n\n\n\n uint public burnAmount = 10;\n\n\n\n /// @notice Takes a src amount of tokens and converts it into the dest token\n\n /// @dev Takes fee from the _srcAmount before the exchange\n\n /// @param exData [srcAddr, destAddr, srcAmount, destAmount, minPrice, exchangeType, exchangeAddr, callData, price0x]\n\n /// @param _user User address who called the exchange\n\n function sell(ExchangeData memory exData, address payable _user) public payable burnGas(burnAmount) {\n\n\n\n // take fee\n\n uint dfsFee = getFee(exData.srcAmount, exData.srcAddr);\n\n exData.srcAmount = sub(exData.srcAmount, dfsFee);\n\n\n\n // Perform the exchange\n\n (address wrapper, uint destAmount) = _sell(exData);\n\n\n\n // send back any leftover ether or tokens\n\n sendLeftover(exData.srcAddr, exData.destAddr, _user);\n\n\n\n // log the event\n\n logger.Log(address(this), msg.sender, \"ExchangeSell\", abi.encode(wrapper, exData.srcAddr, exData.destAddr, exData.srcAmount, destAmount));\n\n }\n\n\n\n /// @notice Takes a dest amount of tokens and converts it from the src token\n\n /// @dev Send always more than needed for the swap, extra will be returned\n\n /// @param exData [srcAddr, destAddr, srcAmount, destAmount, minPrice, exchangeType, exchangeAddr, callData, price0x]\n\n /// @param _user User address who called the exchange\n\n function buy(ExchangeData memory exData, address payable _user) public payable burnGas(burnAmount){\n\n\n\n uint dfsFee = getFee(exData.srcAmount, exData.srcAddr);\n\n exData.srcAmount = sub(exData.srcAmount, dfsFee);\n\n\n\n // Perform the exchange\n\n (address wrapper, uint srcAmount) = _buy(exData);\n\n\n\n // send back any leftover ether or tokens\n\n sendLeftover(exData.srcAddr, exData.destAddr, _user);\n\n\n\n // log the event\n\n logger.Log(address(this), msg.sender, \"ExchangeBuy\", abi.encode(wrapper, exData.srcAddr, exData.destAddr, srcAmount, exData.destAmount));\n\n\n\n }\n\n\n\n /// @notice Takes a feePercentage and sends it to wallet\n\n /// @param _amount Dai amount of the whole trade\n\n /// @param _token Address of the token\n\n /// @return feeAmount Amount in Dai owner earned on the fee\n\n function getFee(uint256 _amount, address _token) internal returns (uint256 feeAmount) {\n\n uint256 fee = SERVICE_FEE;\n\n\n\n if (Discount(DISCOUNT_ADDRESS).isCustomFeeSet(msg.sender)) {\n\n fee = Discount(DISCOUNT_ADDRESS).getCustomServiceFee(msg.sender);\n\n }\n\n\n\n if (fee == 0) {\n\n feeAmount = 0;\n\n } else {\n\n feeAmount = _amount / fee;\n\n if (_token == KYBER_ETH_ADDRESS) {\n\n WALLET_ID.transfer(feeAmount);\n\n } else {\n\n ERC20(_token).safeTransfer(WALLET_ID, feeAmount);\n\n }\n\n }\n\n }\n\n\n\n /// @notice Changes the amount of gas token we burn for each call\n\n /// @dev Only callable by the owner\n\n /// @param _newBurnAmount New amount of gas tokens to be burned\n\n function changeBurnAmount(uint _newBurnAmount) public {\n\n require(owner == msg.sender);\n\n\n\n burnAmount = _newBurnAmount;\n\n }\n\n\n\n}\n\ncontract MCDSaverFlashLoan is MCDSaverProxy, AdminAuth, FlashLoanReceiverBase {\n\n\n\n ILendingPoolAddressesProvider public LENDING_POOL_ADDRESS_PROVIDER = ILendingPoolAddressesProvider(0x24a42fD28C976A61Df5D00D0599C34c4f90748c8);\n\n\n\n constructor() FlashLoanReceiverBase(LENDING_POOL_ADDRESS_PROVIDER) public {}\n\n\n\n struct SaverData {\n\n uint cdpId;\n\n uint gasCost;\n\n uint loanAmount;\n\n uint fee;\n\n address joinAddr;\n\n }\n\n\n\n function executeOperation(\n\n address _reserve,\n\n uint256 _amount,\n\n uint256 _fee,\n\n bytes calldata _params)\n\n external override {\n\n\n\n //check the contract has the specified balance\n\n require(_amount <= getBalanceInternal(address(this), _reserve),\n\n \"Invalid balance for the contract\");\n\n\n\n (\n\n bytes memory exDataBytes,\n\n uint cdpId,\n\n uint gasCost,\n\n address joinAddr,\n\n bool isRepay\n\n )\n\n = abi.decode(_params, (bytes,uint256,uint256,address,bool));\n\n\n\n ExchangeData memory exchangeData = unpackExchangeData(exDataBytes);\n\n\n\n SaverData memory saverData = SaverData({\n\n cdpId: cdpId,\n\n gasCost: gasCost,\n\n loanAmount: _amount,\n\n fee: _fee,\n\n joinAddr: joinAddr\n\n });\n\n\n\n if (isRepay) {\n\n repayWithLoan(exchangeData, saverData);\n\n } else {\n\n boostWithLoan(exchangeData, saverData);\n\n }\n\n\n\n transferFundsBackToPoolInternal(_reserve, _amount.add(_fee));\n\n\n\n // if there is some eth left (0x fee), return it to user\n\n if (address(this).balance > 0) {\n\n tx.origin.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n function boostWithLoan(\n\n ExchangeData memory _exchangeData,\n\n SaverData memory _saverData\n\n ) internal {\n\n\n\n address user = getOwner(manager, _saverData.cdpId);\n\n\n\n // Draw users Dai\n\n uint maxDebt = getMaxDebt(_saverData.cdpId, manager.ilks(_saverData.cdpId));\n\n uint daiDrawn = drawDai(_saverData.cdpId, manager.ilks(_saverData.cdpId), maxDebt);\n\n\n\n // Calc. fees\n\n uint dsfFee = getFee((daiDrawn + _saverData.loanAmount), _saverData.gasCost, user);\n\n uint afterFee = (daiDrawn + _saverData.loanAmount) - dsfFee;\n\n\n\n // Swap\n\n _exchangeData.srcAmount = afterFee;\n\n (, uint swapedAmount) = _sell(_exchangeData);\n\n\n\n // Return collateral\n\n addCollateral(_saverData.cdpId, _saverData.joinAddr, swapedAmount);\n\n\n\n // Draw Dai to repay the flash loan\n\n drawDai(_saverData.cdpId, manager.ilks(_saverData.cdpId), (_saverData.loanAmount + _saverData.fee));\n\n\n\n logger.Log(address(this), msg.sender, \"MCDFlashBoost\", abi.encode(_saverData.cdpId, owner, _exchangeData.srcAmount, swapedAmount));\n\n }\n\n\n\n function repayWithLoan(\n\n ExchangeData memory _exchangeData,\n\n SaverData memory _saverData\n\n ) internal {\n\n\n\n address user = getOwner(manager, _saverData.cdpId);\n\n bytes32 ilk = manager.ilks(_saverData.cdpId);\n\n\n\n // Draw collateral\n\n uint maxColl = getMaxCollateral(_saverData.cdpId, ilk, _saverData.joinAddr);\n\n uint collDrawn = drawCollateral(_saverData.cdpId, _saverData.joinAddr, maxColl);\n\n\n\n // Swap\n\n _exchangeData.srcAmount = (_saverData.loanAmount + collDrawn);\n\n (, uint swapedAmount) = _sell(_exchangeData);\n\n\n\n uint paybackAmount = (swapedAmount - getFee(swapedAmount, _saverData.gasCost, user));\n\n paybackAmount = limitLoanAmount(_saverData.cdpId, ilk, paybackAmount, user);\n\n\n\n // Payback the debt\n\n paybackDebt(_saverData.cdpId, ilk, paybackAmount, user);\n\n\n\n // Draw collateral to repay the flash loan\n\n drawCollateral(_saverData.cdpId, _saverData.joinAddr, (_saverData.loanAmount + _saverData.fee));\n\n\n\n logger.Log(address(this), msg.sender, \"MCDFlashRepay\", abi.encode(_saverData.cdpId, owner, _exchangeData.srcAmount, swapedAmount));\n\n }\n\n\n\n /// @notice Handles that the amount is not bigger than cdp debt and not dust\n\n function limitLoanAmount(uint _cdpId, bytes32 _ilk, uint _paybackAmount, address _owner) internal returns (uint256) {\n\n uint debt = getAllDebt(address(vat), manager.urns(_cdpId), manager.urns(_cdpId), _ilk);\n\n\n\n if (_paybackAmount > debt) {\n\n ERC20(DAI_ADDRESS).transfer(_owner, (_paybackAmount - debt));\n\n return debt;\n\n }\n\n\n\n uint debtLeft = debt - _paybackAmount;\n\n\n\n (,,,, uint dust) = vat.ilks(_ilk);\n\n dust = dust / 10**27;\n\n\n\n // Less than dust value\n\n if (debtLeft < dust) {\n\n uint amountOverDust = (dust - debtLeft);\n\n\n\n ERC20(DAI_ADDRESS).transfer(_owner, amountOverDust);\n\n\n\n return (_paybackAmount - amountOverDust);\n\n }\n\n\n\n return _paybackAmount;\n\n }\n\n\n\n receive() external override(FlashLoanReceiverBase, SaverExchangeCore) payable {}\n\n\n\n}\n\ncontract CompoundFlashLoanTaker is CompoundSaverProxy, ProxyPermission, GasBurner {\n\n ILendingPool public constant lendingPool = ILendingPool(0x398eC7346DcD622eDc5ae82352F02bE94C62d119);\n\n\n\n address payable public constant COMPOUND_SAVER_FLASH_LOAN = 0xCeB190A35D9D4804b9CE8d0CF79239f6949BfCcB;\n\n address public constant AAVE_POOL_CORE = 0x3dfd23A6c5E8BbcFc9581d2E864a68feb6a076d3;\n\n\n\n /// @notice Repays the position with it's own fund or with FL if needed\n\n /// @param _exData Exchange data\n\n /// @param _cAddresses cTokens addreses and exchange [cCollAddress, cBorrowAddress, exchangeAddress]\n\n /// @param _gasCost Gas cost for specific transaction\n\n function repayWithLoan(\n\n ExchangeData memory _exData,\n\n address[2] memory _cAddresses, // cCollAddress, cBorrowAddress\n\n uint256 _gasCost\n\n ) public payable burnGas(25) {\n\n uint maxColl = getMaxCollateral(_cAddresses[0], address(this));\n\n uint availableLiquidity = getAvailableLiquidity(_exData.srcAddr);\n\n\n\n if (_exData.srcAmount <= maxColl || availableLiquidity == 0) {\n\n repay(_exData, _cAddresses, _gasCost);\n\n } else {\n\n // 0x fee\n\n COMPOUND_SAVER_FLASH_LOAN.transfer(msg.value);\n\n\n\n uint loanAmount = (_exData.srcAmount - maxColl);\n\n if (loanAmount > availableLiquidity) loanAmount = availableLiquidity;\n\n bytes memory encoded = packExchangeData(_exData);\n\n bytes memory paramsData = abi.encode(encoded, _cAddresses, _gasCost, true, address(this));\n\n\n\n givePermission(COMPOUND_SAVER_FLASH_LOAN);\n\n\n\n lendingPool.flashLoan(COMPOUND_SAVER_FLASH_LOAN, getUnderlyingAddr(_cAddresses[0]), loanAmount, paramsData);\n\n\n\n removePermission(COMPOUND_SAVER_FLASH_LOAN);\n\n\n\n logger.Log(address(this), msg.sender, \"CompoundFlashRepay\", abi.encode(loanAmount, _exData.srcAmount, _cAddresses[0]));\n\n }\n\n }\n\n\n\n /// @notice Boosts the position with it's own fund or with FL if needed\n\n /// @param _exData Exchange data\n\n /// @param _cAddresses cTokens addreses and exchange [cCollAddress, cBorrowAddress, exchangeAddress]\n\n /// @param _gasCost Gas cost for specific transaction\n\n function boostWithLoan(\n\n ExchangeData memory _exData,\n\n address[2] memory _cAddresses, // cCollAddress, cBorrowAddress\n\n uint256 _gasCost\n\n ) public payable burnGas(20) {\n\n uint maxBorrow = getMaxBorrow(_cAddresses[1], address(this));\n\n uint availableLiquidity = getAvailableLiquidity(_exData.srcAddr);\n\n\n\n if (_exData.srcAmount <= maxBorrow || availableLiquidity == 0) {\n\n boost(_exData, _cAddresses, _gasCost);\n\n } else {\n\n // 0x fee\n\n COMPOUND_SAVER_FLASH_LOAN.transfer(msg.value);\n\n\n\n uint loanAmount = (_exData.srcAmount - maxBorrow);\n\n if (loanAmount > availableLiquidity) loanAmount = availableLiquidity;\n\n bytes memory paramsData = abi.encode(packExchangeData(_exData), _cAddresses, _gasCost, false, address(this));\n\n\n\n givePermission(COMPOUND_SAVER_FLASH_LOAN);\n\n\n\n lendingPool.flashLoan(COMPOUND_SAVER_FLASH_LOAN, getUnderlyingAddr(_cAddresses[1]), loanAmount, paramsData);\n\n\n\n removePermission(COMPOUND_SAVER_FLASH_LOAN);\n\n\n\n logger.Log(address(this), msg.sender, \"CompoundFlashBoost\", abi.encode(loanAmount, _exData.srcAmount, _cAddresses[1]));\n\n }\n\n\n\n }\n\n\n\n function getAvailableLiquidity(address _tokenAddr) internal view returns (uint liquidity) {\n\n if (_tokenAddr == KYBER_ETH_ADDRESS) {\n\n liquidity = AAVE_POOL_CORE.balance;\n\n } else {\n\n liquidity = ERC20(_tokenAddr).balanceOf(AAVE_POOL_CORE);\n\n }\n\n }\n\n}\n\ncontract CreamFlashLoanTaker is CreamSaverProxy, ProxyPermission, GasBurner {\n\n ILendingPool public constant lendingPool = ILendingPool(0x398eC7346DcD622eDc5ae82352F02bE94C62d119);\n\n\n\n address payable public constant COMPOUND_SAVER_FLASH_LOAN = 0xCeB190A35D9D4804b9CE8d0CF79239f6949BfCcB;\n\n\n\n /// @notice Repays the position with it's own fund or with FL if needed\n\n /// @param _exData Exchange data\n\n /// @param _cAddresses cTokens addreses and exchange [cCollAddress, cBorrowAddress, exchangeAddress]\n\n /// @param _gasCost Gas cost for specific transaction\n\n function repayWithLoan(\n\n ExchangeData memory _exData,\n\n address[2] memory _cAddresses, // cCollAddress, cBorrowAddress\n\n uint256 _gasCost\n\n ) public payable burnGas(25) {\n\n uint maxColl = getMaxCollateral(_cAddresses[0], address(this));\n\n\n\n if (_exData.srcAmount <= maxColl) {\n\n repay(_exData, _cAddresses, _gasCost);\n\n } else {\n\n // 0x fee\n\n COMPOUND_SAVER_FLASH_LOAN.transfer(msg.value);\n\n\n\n uint loanAmount = (_exData.srcAmount - maxColl);\n\n bytes memory encoded = packExchangeData(_exData);\n\n bytes memory paramsData = abi.encode(encoded, _cAddresses, _gasCost, true, address(this));\n\n\n\n givePermission(COMPOUND_SAVER_FLASH_LOAN);\n\n\n\n lendingPool.flashLoan(COMPOUND_SAVER_FLASH_LOAN, getUnderlyingAddr(_cAddresses[0]), loanAmount, paramsData);\n\n\n\n removePermission(COMPOUND_SAVER_FLASH_LOAN);\n\n\n\n logger.Log(address(this), msg.sender, \"CreamFlashRepay\", abi.encode(loanAmount, _exData.srcAmount, _cAddresses[0]));\n\n }\n\n }\n\n\n\n /// @notice Boosts the position with it's own fund or with FL if needed\n\n /// @param _exData Exchange data\n\n /// @param _cAddresses cTokens addreses and exchange [cCollAddress, cBorrowAddress, exchangeAddress]\n\n /// @param _gasCost Gas cost for specific transaction\n\n function boostWithLoan(\n\n ExchangeData memory _exData,\n\n address[2] memory _cAddresses, // cCollAddress, cBorrowAddress\n\n uint256 _gasCost\n\n ) public payable burnGas(20) {\n\n uint maxBorrow = getMaxBorrow(_cAddresses[1], address(this));\n\n\n\n if (_exData.srcAmount <= maxBorrow) {\n\n boost(_exData, _cAddresses, _gasCost);\n\n } else {\n\n // 0x fee\n\n COMPOUND_SAVER_FLASH_LOAN.transfer(msg.value);\n\n\n\n uint loanAmount = (_exData.srcAmount - maxBorrow);\n\n bytes memory paramsData = abi.encode(packExchangeData(_exData), _cAddresses, _gasCost, false, address(this));\n\n\n\n givePermission(COMPOUND_SAVER_FLASH_LOAN);\n\n\n\n lendingPool.flashLoan(COMPOUND_SAVER_FLASH_LOAN, getUnderlyingAddr(_cAddresses[1]), loanAmount, paramsData);\n\n\n\n removePermission(COMPOUND_SAVER_FLASH_LOAN);\n\n\n\n logger.Log(address(this), msg.sender, \"CreamFlashBoost\", abi.encode(loanAmount, _exData.srcAmount, _cAddresses[1]));\n\n }\n\n\n\n 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0":{"kind":"number","value":675,"string":"675"},"address":{"kind":"string","value":"0xee4805585e8a7b7fcf55fc9fff092afe46612cf0"},"source_code":{"kind":"string","value":"pragma solidity 0.7.1;\n\nabstract contract Context {\n\n\n // Empty internal constructor, to prevent people from mistakenly deploying\n\n\n // an instance of this contract, which should be used via inheritance.\n\n\n constructor () { }\n\n\n\n\n\n function _msgSender() internal view virtual returns (address payable) {\n\n\n return msg.sender;\n\n\n }\n\n\n\n\n\n function _msgData() internal view virtual returns (bytes memory) {\n\n\n this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691\n\n\n return msg.data;\n\n\n }\n\n\n}\n\ncontract Ownable is Context {\n\n\n address private _owner;\n\n\n\n\n\n event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\n\n\n\n\n\n /**\n\n\n * @dev Initializes the contract setting the deployer as the initial owner.\n\n\n */\n\n\n constructor () {\n\n\n address msgSender = _msgSender();\n\n\n _owner = msgSender;\n\n\n emit OwnershipTransferred(address(0), msgSender);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the address of the current owner.\n\n\n */\n\n\n function owner() public view returns (address) {\n\n\n return _owner;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Throws if called by any account other than the owner.\n\n\n */\n\n\n modifier onlyOwner() {\n\n\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n\n _;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Leaves the contract without owner. It will not be possible to call\n\n\n * `onlyOwner` functions anymore. Can only be called by the current owner.\n\n\n *\n\n\n * NOTE: Renouncing ownership will leave the contract without an owner,\n\n\n * thereby removing any functionality that is only available to the owner.\n\n\n */\n\n\n function renounceOwnership() public virtual onlyOwner {\n\n\n emit OwnershipTransferred(_owner, address(0));\n\n\n _owner = address(0);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\n\n\n * Can only be called by the current owner.\n\n\n */\n\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n\n\n require(newOwner != address(0), \"Ownable: new owner is the zero address\");\n\n\n emit OwnershipTransferred(_owner, newOwner);\n\n\n _owner = newOwner;\n\n\n }\n\n\n}\n\ninterface PRDX_token { \n\n\n function balanceOf(address owner) external returns (uint256);\n\n\n function transfer(address to, uint256 amount) external returns (bool);\n\n\n function transferFrom(address _from, address _to, uint256 _value) external returns (bool success);\n\n\n function _approve(address owner, address spender, uint256 amount) external ; \n\n\n}\n\ncontract PRDXTeamLock is Ownable {\n\n\n \n\n\n address public token_addr ; \n\n\n PRDX_token token_contract = PRDX_token(token_addr) ;\n\n\n\n\n\n uint256 public PERC_per_MONTH = 10 ; \n\n\n uint256 public last_claim ; \n\n\n uint256 public start_lock ;\n\n\n \n\n\n uint256 public MONTH = 2628000 ; \n\n\n \n\n\n uint256 public locked ; \n\n\n\n\n\n /**\n\n\n * @dev Lock tokens by approving the contract to take them.\n\n\n * @param value Amount of tokens you want to lock in the contract\n\n\n */\n\n\n function lock_tokens(uint256 value) public payable onlyOwner {\n\n\n token_contract.transferFrom(msg.sender, address(this), value) ; \n\n\n \n\n\n locked += value ;\n\n\n start_lock = block.timestamp ; \n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Withdraw function for the team to withdraw locked up tokens each month starting one month after lockup\n\n\n */\n\n\n function withdraw() public onlyOwner {\n\n\n require(block.timestamp >= start_lock + MONTH, \"Cannot be claimed in first month\") ;\n\n\n require(block.timestamp - last_claim >= MONTH, \"Cannot claim twice per month\") ; \n\n\n last_claim = block.timestamp ; \n\n\n \n\n\n token_contract.transfer(msg.sender, locked * PERC_per_MONTH/100) ; \n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Set PRDX Token contract address\n\n\n * @param addr Address of PRDX Token contract\n\n\n */\n\n\n function set_token_contract(address addr) public onlyOwner {\n\n\n token_addr = addr ;\n\n\n token_contract = PRDX_token(token_addr) ;\n\n\n }\n\n\n 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0":{"kind":"number","value":676,"string":"676"},"address":{"kind":"string","value":"0xeea9ae787f3a620072d13b2cdc8cabffb9c0ab96"},"source_code":{"kind":"string","value":"pragma solidity 0.7.0;\n\ncontract Context {\n\n\n function _msgSender() internal view returns (address payable) {\n\n\n return msg.sender;\n\n\n }\n\n\n\n\n\n function _msgData() internal view virtual returns (bytes memory) {\n\n\n this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691\n\n\n return msg.data;\n\n\n }\n\n\n}\n\ninterface IERC20 { \n\n\n function totalSupply() external view returns (uint256);\n\n\n function balanceOf(address account) external view returns (uint256);\n\n\n function transfer(address recipient, uint256 amount) external returns (bool);\n\n\n function allowance(address owner, address spender) external view returns (uint256);\n\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n\n function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);\n\n\n \n\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n\n}\n\nlibrary SafeMath {\n\n\n \n\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n\n\n uint256 c = a + b;\n\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n\n\n\n\n return c;\n\n\n }\n\n\n \n\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n\n\n return sub(a, b, \"SafeMath: subtraction overflow\");\n\n\n }\n\n\n \n\n\n function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n\n require(b <= a, errorMessage);\n\n\n uint256 c = a - b;\n\n\n\n\n\n return c;\n\n\n }\n\n\n \n\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n\n\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n\n\n // benefit is lost if 'b' is also tested.\n\n\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n\n\n if (a == 0) {\n\n\n return 0;\n\n\n }\n\n\n\n\n\n uint256 c = a * b;\n\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n\n\n\n\n return c;\n\n\n }\n\n\n \n\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n\n\n return div(a, b, \"SafeMath: division by zero\");\n\n\n }\n\n\n \n\n\n function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n\n require(b > 0, errorMessage);\n\n\n uint256 c = a / b;\n\n\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n\n\n\n\n return c;\n\n\n }\n\n\n \n\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n\n\n return mod(a, b, \"SafeMath: modulo by zero\");\n\n\n }\n\n\n \n\n\n function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n\n require(b != 0, errorMessage);\n\n\n return a % b;\n\n\n }\n\n\n}\n\ncontract ERC20 is Context, IERC20 {\n\n\n using SafeMath for uint;\n\n\n\n\n\n mapping (address => uint) private _balances;\n\n\n mapping (address => mapping (address => uint)) private _allowances;\n\n\n\n\n\n uint private _totalSupply;\n\n\n string private _name;\n\n\n string private _symbol;\n\n\n uint8 private _decimals;\n\n\n\n\n\n //Only create tokens on initial constructor call\n\n\n constructor (string memory name, string memory symbol, uint256 totalSupply) public {\n\n\n _name = name;\n\n\n _symbol = symbol;\n\n\n _decimals = 18;\n\n\n\n\n\n _totalSupply = _totalSupply.add(totalSupply * 10**_decimals);\n\n\n _balances[_msgSender()] = _balances[_msgSender()].add(_totalSupply);\n\n\n emit Transfer(address(0x0), _msgSender(), _totalSupply);\n\n\n }\n\n\n\n\n\n function totalSupply() public override view returns (uint) {\n\n\n return _totalSupply;\n\n\n }\n\n\n\n\n\n function name() public view returns (string memory) {\n\n\n return _name;\n\n\n }\n\n\n \n\n\n function symbol() public view returns (string memory) {\n\n\n return _symbol;\n\n\n }\n\n\n \n\n\n function decimals() public view returns (uint8) {\n\n\n return _decimals;\n\n\n }\n\n\n \n\n\n function balanceOf(address account) public view override returns (uint256) {\n\n\n return _balances[account];\n\n\n }\n\n\n\n\n\n function transfer(address recipient, uint256 amount) public virtual override returns (bool) {\n\n\n _transfer(_msgSender(), recipient, amount);\n\n\n return true;\n\n\n }\n\n\n \n\n\n function allowance(address owner, address spender) public view virtual override returns (uint256) {\n\n\n return _allowances[owner][spender];\n\n\n }\n\n\n \n\n\n function approve(address spender, uint256 amount) public virtual override returns (bool) {\n\n\n _approve(_msgSender(), spender, amount);\n\n\n return true;\n\n\n }\n\n\n \n\n\n function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {\n\n\n _transfer(sender, recipient, amount);\n\n\n _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, \"ERC20: transfer amount exceeds allowance\"));\n\n\n return true;\n\n\n }\n\n\n \n\n\n function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {\n\n\n _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));\n\n\n return true;\n\n\n }\n\n\n \n\n\n function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {\n\n\n _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, \"ERC20: decreased allowance below zero\"));\n\n\n return true;\n\n\n }\n\n\n \n\n\n function _transfer(address sender, address recipient, uint256 amount) internal virtual {\n\n\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\"); \n\n\n\n\n\n _balances[sender] = _balances[sender].sub(amount, \"ERC20: transfer amount exceeds balance\");\n\n\n _balances[recipient] = _balances[recipient].add(amount);\n\n\n emit Transfer(sender, recipient, amount);\n\n\n } \n\n\n \n\n\n function _burn(address account, uint256 amount) internal virtual {\n\n\n require(account != address(0), \"ERC20: burn from the zero address\"); \n\n\n\n\n\n _balances[account] = _balances[account].sub(amount, \"ERC20: burn amount exceeds balance\");\n\n\n _totalSupply = _totalSupply.sub(amount);\n\n\n emit Transfer(account, address(0), amount);\n\n\n }\n\n\n \n\n\n function _approve(address owner, address spender, uint256 amount) internal virtual {\n\n\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\n\n\n\n _allowances[owner][spender] = amount;\n\n\n emit Approval(owner, spender, amount);\n\n\n }\n\n\n}\n\ncontract YSEC is ERC20{\n\n\n using SafeMath for uint;\n\n\n\n\n\n address public Governance;\n\n\n\n\n\n constructor () ERC20(\"YearnSecure\", \"YSEC\", 1000000) {\n\n\n Governance = msg.sender;\n\n\n }\n\n\n\n\n\n function burn(uint256 amount) external {\n\n\n require(msg.sender == Governance, \"Caller does not have governance\");\n\n\n _burn(msg.sender, amount);\n\n\n }\n\n\n\n\n\n function burnGovernance() external{\n\n\n require(msg.sender == Governance, \"Caller does not have governance\");\n\n\n Governance = address(0x0);\n\n\n 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0":{"kind":"number","value":677,"string":"677"},"address":{"kind":"string","value":"0xeef9f339514298c6a857efcfc1a762af84438dee"},"source_code":{"kind":"string","value":"pragma solidity 0.6.12;\n\ninterface IERC1820Registry {\n\n /**\n\n * @dev Sets `newManager` as the manager for `account`. A manager of an\n\n * account is able to set interface implementers for it.\n\n *\n\n * By default, each account is its own manager. Passing a value of `0x0` in\n\n * `newManager` will reset the manager to this initial state.\n\n *\n\n * Emits a {ManagerChanged} event.\n\n *\n\n * Requirements:\n\n *\n\n * - the caller must be the current manager for `account`.\n\n */\n\n function setManager(address account, address newManager) external;\n\n\n\n /**\n\n * @dev Returns the manager for `account`.\n\n *\n\n * See {setManager}.\n\n */\n\n function getManager(address account) external view returns (address);\n\n\n\n /**\n\n * @dev Sets the `implementer` contract as ``account``'s implementer for\n\n * `interfaceHash`.\n\n *\n\n * `account` being the zero address is an alias for the caller's address.\n\n * The zero address can also be used in `implementer` to remove an old one.\n\n *\n\n * See {interfaceHash} to learn how these are created.\n\n *\n\n * Emits an {InterfaceImplementerSet} event.\n\n *\n\n * Requirements:\n\n *\n\n * - the caller must be the current manager for `account`.\n\n * - `interfaceHash` must not be an {IERC165} interface id (i.e. it must not\n\n * end in 28 zeroes).\n\n * - `implementer` must implement {IERC1820Implementer} and return true when\n\n * queried for support, unless `implementer` is the caller. See\n\n * {IERC1820Implementer-canImplementInterfaceForAddress}.\n\n */\n\n function setInterfaceImplementer(address account, bytes32 interfaceHash, address implementer) external;\n\n\n\n /**\n\n * @dev Returns the implementer of `interfaceHash` for `account`. If no such\n\n * implementer is registered, returns the zero address.\n\n *\n\n * If `interfaceHash` is an {IERC165} interface id (i.e. it ends with 28\n\n * zeroes), `account` will be queried for support of it.\n\n *\n\n * `account` being the zero address is an alias for the caller's address.\n\n */\n\n function getInterfaceImplementer(address account, bytes32 interfaceHash) external view returns (address);\n\n\n\n /**\n\n * @dev Returns the interface hash for an `interfaceName`, as defined in the\n\n * corresponding\n\n * https://eips.ethereum.org/EIPS/eip-1820#interface-name[section of the EIP].\n\n */\n\n function interfaceHash(string calldata interfaceName) external pure returns (bytes32);\n\n\n\n /**\n\n * @notice Updates the cache with whether the contract implements an ERC165 interface or not.\n\n * @param account Address of the contract for which to update the cache.\n\n * @param interfaceId ERC165 interface for which to update the cache.\n\n */\n\n function updateERC165Cache(address account, bytes4 interfaceId) external;\n\n\n\n /**\n\n * @notice Checks whether a contract implements an ERC165 interface or not.\n\n * If the result is not cached a direct lookup on the contract address is performed.\n\n * If the result is not cached or the cached value is out-of-date, the cache MUST be updated manually by calling\n\n * {updateERC165Cache} with the contract address.\n\n * @param account Address of the contract to check.\n\n * @param interfaceId ERC165 interface to check.\n\n * @return True if `account` implements `interfaceId`, false otherwise.\n\n */\n\n function implementsERC165Interface(address account, bytes4 interfaceId) external view returns (bool);\n\n\n\n /**\n\n * @notice Checks whether a contract implements an ERC165 interface or not without using nor updating the cache.\n\n * @param account Address of the contract to check.\n\n * @param interfaceId ERC165 interface to check.\n\n * @return True if `account` implements `interfaceId`, false otherwise.\n\n */\n\n function implementsERC165InterfaceNoCache(address account, bytes4 interfaceId) external view returns (bool);\n\n\n\n event InterfaceImplementerSet(address indexed account, bytes32 indexed interfaceHash, address indexed implementer);\n\n\n\n event ManagerChanged(address indexed account, address indexed newManager);\n\n}\n\nlibrary Math {\n\n /**\n\n * @dev Returns the largest of two numbers.\n\n */\n\n function max(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return a >= b ? a : b;\n\n }\n\n\n\n /**\n\n * @dev Returns the smallest of two numbers.\n\n */\n\n function min(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return a < b ? a : b;\n\n }\n\n\n\n /**\n\n * @dev Returns the average of two numbers. The result is rounded towards\n\n * zero.\n\n */\n\n function average(uint256 a, uint256 b) internal pure returns (uint256) {\n\n // (a + b) / 2 can overflow, so we distribute\n\n return (a / 2) + (b / 2) + ((a % 2 + b % 2) / 2);\n\n }\n\n}\n\nlibrary SafeMath {\n\n /**\n\n * @dev Returns the addition of two unsigned integers, reverting on\n\n * overflow.\n\n *\n\n * Counterpart to Solidity's `+` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Addition cannot overflow.\n\n */\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the subtraction of two unsigned integers, reverting on\n\n * overflow (when the result is negative).\n\n *\n\n * Counterpart to Solidity's `-` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Subtraction cannot overflow.\n\n */\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return sub(a, b, \"SafeMath: subtraction overflow\");\n\n }\n\n\n\n /**\n\n * @dev Returns the subtraction of two unsigned integers, reverting with custom message on\n\n * overflow (when the result is negative).\n\n *\n\n * Counterpart to Solidity's `-` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Subtraction cannot overflow.\n\n */\n\n function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the multiplication of two unsigned integers, reverting on\n\n * overflow.\n\n *\n\n * Counterpart to Solidity's `*` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Multiplication cannot overflow.\n\n */\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n\n // benefit is lost if 'b' is also tested.\n\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n\n if (a == 0) {\n\n return 0;\n\n }\n\n\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the integer division of two unsigned integers. Reverts on\n\n * division by zero. The result is rounded towards zero.\n\n *\n\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n\n * uses an invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return div(a, b, \"SafeMath: division by zero\");\n\n }\n\n\n\n /**\n\n * @dev Returns the integer division of two unsigned integers. Reverts with custom message on\n\n * division by zero. The result is rounded towards zero.\n\n *\n\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n\n * uses an invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n\n * Reverts when dividing by zero.\n\n *\n\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n\n * invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return mod(a, b, \"SafeMath: modulo by zero\");\n\n }\n\n\n\n /**\n\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n\n * Reverts with custom message when dividing by zero.\n\n *\n\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n\n * invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n require(b != 0, errorMessage);\n\n return a % b;\n\n }\n\n}\n\ninterface IERC20 {\n\n /**\n\n * @dev Returns the amount of tokens in existence.\n\n */\n\n function totalSupply() external view returns (uint256);\n\n\n\n /**\n\n * @dev Returns the amount of tokens owned by `account`.\n\n */\n\n function balanceOf(address account) external view returns (uint256);\n\n\n\n /**\n\n * @dev Moves `amount` tokens from the caller's account to `recipient`.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * Emits a {Transfer} event.\n\n */\n\n function transfer(address recipient, uint256 amount) external returns (bool);\n\n\n\n /**\n\n * @dev Returns the remaining number of tokens that `spender` will be\n\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n\n * zero by default.\n\n *\n\n * This value changes when {approve} or {transferFrom} are called.\n\n */\n\n function allowance(address owner, address spender) external view returns (uint256);\n\n\n\n /**\n\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n\n * that someone may use both the old and the new allowance by unfortunate\n\n * transaction ordering. One possible solution to mitigate this race\n\n * condition is to first reduce the spender's allowance to 0 and set the\n\n * desired value afterwards:\n\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n\n *\n\n * Emits an {Approval} event.\n\n */\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n\n\n /**\n\n * @dev Moves `amount` tokens from `sender` to `recipient` using the\n\n * allowance mechanism. `amount` is then deducted from the caller's\n\n * allowance.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * Emits a {Transfer} event.\n\n */\n\n function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);\n\n\n\n /**\n\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n\n * another (`to`).\n\n *\n\n * Note that `value` may be zero.\n\n */\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n\n\n /**\n\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n\n * a call to {approve}. `value` is the new allowance.\n\n */\n\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n}\n\nlibrary SafeERC20 {\n\n using SafeMath for uint256;\n\n using Address for address;\n\n\n\n function safeTransfer(IERC20 token, address to, uint256 value) internal {\n\n _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));\n\n }\n\n\n\n function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {\n\n _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));\n\n }\n\n\n\n /**\n\n * @dev Deprecated. This function has issues similar to the ones found in\n\n * {IERC20-approve}, and its usage is discouraged.\n\n *\n\n * Whenever possible, use {safeIncreaseAllowance} and\n\n * {safeDecreaseAllowance} instead.\n\n */\n\n function safeApprove(IERC20 token, address spender, uint256 value) internal {\n\n // safeApprove should only be called when setting an initial allowance,\n\n // or when resetting it to zero. To increase and decrease it, use\n\n // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'\n\n // solhint-disable-next-line max-line-length\n\n require((value == 0) || (token.allowance(address(this), spender) == 0),\n\n \"SafeERC20: approve from non-zero to non-zero allowance\"\n\n );\n\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));\n\n }\n\n\n\n function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {\n\n uint256 newAllowance = token.allowance(address(this), spender).add(value);\n\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\n\n }\n\n\n\n function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {\n\n uint256 newAllowance = token.allowance(address(this), spender).sub(value, \"SafeERC20: decreased allowance below zero\");\n\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\n\n }\n\n\n\n /**\n\n * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement\n\n * on the return value: the return value is optional (but if data is returned, it must not be false).\n\n * @param token The token targeted by the call.\n\n * @param data The call data (encoded using abi.encode or one of its variants).\n\n */\n\n function _callOptionalReturn(IERC20 token, bytes memory data) private {\n\n // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since\n\n // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that\n\n // the target address contains contract code and also asserts for success in the low-level call.\n\n\n\n bytes memory returndata = address(token).functionCall(data, \"SafeERC20: low-level call failed\");\n\n if (returndata.length > 0) { // Return data is optional\n\n // solhint-disable-next-line max-line-length\n\n require(abi.decode(returndata, (bool)), \"SafeERC20: ERC20 operation did not succeed\");\n\n }\n\n }\n\n}\n\ninterface IERC777Recipient {\n\n /**\n\n * @dev Called by an {IERC777} token contract whenever tokens are being\n\n * moved or created into a registered account (`to`). The type of operation\n\n * is conveyed by `from` being the zero address or not.\n\n *\n\n * This call occurs _after_ the token contract's state is updated, so\n\n * {IERC777-balanceOf}, etc., can be used to query the post-operation state.\n\n *\n\n * This function may revert to prevent the operation from being executed.\n\n */\n\n function tokensReceived(\n\n address operator,\n\n address from,\n\n address to,\n\n uint256 amount,\n\n bytes calldata userData,\n\n bytes calldata operatorData\n\n ) external;\n\n}\n\nlibrary Address {\n\n /**\n\n * @dev Returns true if `account` is a contract.\n\n *\n\n * [IMPORTANT]\n\n * ====\n\n * It is unsafe to assume that an address for which this function returns\n\n * false is an externally-owned account (EOA) and not a contract.\n\n *\n\n * Among others, `isContract` will return false for the following\n\n * types of addresses:\n\n *\n\n * - an externally-owned account\n\n * - a contract in construction\n\n * - an address where a contract will be created\n\n * - an address where a contract lived, but was destroyed\n\n * ====\n\n */\n\n function isContract(address account) internal view returns (bool) {\n\n // This method relies in extcodesize, which returns 0 for contracts in\n\n // construction, since the code is only stored at the end of the\n\n // constructor execution.\n\n\n\n uint256 size;\n\n // solhint-disable-next-line no-inline-assembly\n\n assembly { size := extcodesize(account) }\n\n return size > 0;\n\n }\n\n\n\n /**\n\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n\n * `recipient`, forwarding all available gas and reverting on errors.\n\n *\n\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n\n * imposed by `transfer`, making them unable to receive funds via\n\n * `transfer`. {sendValue} removes this limitation.\n\n *\n\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n\n *\n\n * IMPORTANT: because control is transferred to `recipient`, care must be\n\n * taken to not create reentrancy vulnerabilities. Consider using\n\n * {ReentrancyGuard} or the\n\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n\n */\n\n function sendValue(address payable recipient, uint256 amount) internal {\n\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n\n\n // solhint-disable-next-line avoid-low-level-calls, avoid-call-value\n\n (bool success, ) = recipient.call{ value: amount }(\"\");\n\n require(success, \"Address: unable to send value, recipient may have reverted\");\n\n }\n\n\n\n /**\n\n * @dev Performs a Solidity function call using a low level `call`. A\n\n * plain`call` is an unsafe replacement for a function call: use this\n\n * function instead.\n\n *\n\n * If `target` reverts with a revert reason, it is bubbled up by this\n\n * function (like regular Solidity function calls).\n\n *\n\n * Returns the raw returned data. To convert to the expected return value,\n\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n\n *\n\n * Requirements:\n\n *\n\n * - `target` must be a contract.\n\n * - calling `target` with `data` must not revert.\n\n *\n\n * _Available since v3.1._\n\n */\n\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n\n return functionCall(target, data, \"Address: low-level call failed\");\n\n }\n\n\n\n /**\n\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n\n * `errorMessage` as a fallback revert reason when `target` reverts.\n\n *\n\n * _Available since v3.1._\n\n */\n\n function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {\n\n return _functionCallWithValue(target, data, 0, errorMessage);\n\n }\n\n\n\n /**\n\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n\n * but also transferring `value` wei to `target`.\n\n *\n\n * Requirements:\n\n *\n\n * - the calling contract must have an ETH balance of at least `value`.\n\n * - the called Solidity function must be `payable`.\n\n *\n\n * _Available since v3.1._\n\n */\n\n function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n\n }\n\n\n\n /**\n\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n\n *\n\n * _Available since v3.1._\n\n */\n\n function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {\n\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n\n return _functionCallWithValue(target, data, value, errorMessage);\n\n }\n\n\n\n function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {\n\n require(isContract(target), \"Address: call to non-contract\");\n\n\n\n // solhint-disable-next-line avoid-low-level-calls\n\n (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);\n\n if (success) {\n\n return returndata;\n\n } else {\n\n // Look for revert reason and bubble it up if present\n\n if (returndata.length > 0) {\n\n // The easiest way to bubble the revert reason is using memory via assembly\n\n\n\n // solhint-disable-next-line no-inline-assembly\n\n assembly {\n\n let returndata_size := mload(returndata)\n\n revert(add(32, returndata), returndata_size)\n\n }\n\n } else {\n\n revert(errorMessage);\n\n }\n\n }\n\n }\n\n}\n\ninterface HermezVesting {\n\n function move(address recipient, uint256 amount) external;\n\n function changeAddress(address newAddress) external;\n\n}\n\ninterface HEZ {\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n function balanceOf(address account) external view returns (uint256);\n\n function transfer(address recipient, uint256 amount) external returns (bool);\n\n}\n\ncontract BootstrapDistribution {\n\n using SafeMath for uint256;\n\n\n\n HEZ public constant TOKEN_ADDRESS = HEZ(0xEEF9f339514298C6A857EfCfC1A762aF84438dEE);\n\n HermezVesting public constant VESTING_0 = HermezVesting(0x8109dfB06D4d9e694a8349B855cBF493A0B22186);\n\n HermezVesting public constant VESTING_1 = HermezVesting(0xDd90cA911a5dbfB1624fF7Eb586901a9b4BFC53D);\n\n HermezVesting public constant VESTING_2 = HermezVesting(0xB213aeAeF76f82e42263fe896433A260EF018df2);\n\n HermezVesting public constant VESTING_3 = HermezVesting(0x3049399e1308db7d2b28488880C6cFE9Aa003275);\n\n address public constant MULTISIG_VESTING_2 = 0xC21BE548060cB6E07017bFc0b926A71b5E638e09;\n\n address public constant MULTISIG_VESTING_3 = 0x5Fa543E23a1B62e45d010f81AFC0602456BD1F1d;\n\n address public constant VESTING_0_ADDRESS_0 = 0x94E886bB17451A7B82E594db12570a5AdFC2D453;\n\n address public constant VESTING_0_ADDRESS_1 = 0x4FE10B3e306aC1F4b966Db07f031ae5780BC48fB;\n\n address public constant VESTING_0_ADDRESS_2 = 0x6629300128CCdda1e88641Ba2941a22Ce82F5df9;\n\n address public constant VESTING_0_ADDRESS_3 = 0xEb60e28Ce3aCa617d1E0293791c1903cF022b9Cd;\n\n address public constant VESTING_0_ADDRESS_4 = 0x9a415E0cE643abc4AD953B651b2D7e4db2FF3bEa;\n\n address public constant VESTING_0_ADDRESS_5 = 0x15b54c53093aF3e11d787db86e268a6C4F2F72A2;\n\n address public constant VESTING_0_ADDRESS_6 = 0x3279c71F132833190F6cd1D6a9975FFBf8d7C6dC;\n\n address public constant VESTING_0_ADDRESS_7 = 0x312e6f33155177774CDa1A3C4e9f077D93266063;\n\n address public constant VESTING_0_ADDRESS_8 = 0x47690A724Ed551fe2ff1A5eBa335B7c1B7a40990;\n\n address public constant VESTING_1_ADDRESS_0 = 0x80FbB6dd386FC98D2B387F37845A373c8441c069;\n\n address public constant VESTING_2_ADDRESS_0 = 0xBd48F607E26d94772FB21ED1d814F9F116dBD95C;\n\n address public constant VESTING_3_ADDRESS_0 = 0x520Cf70a2D0B3dfB7386A2Bc9F800321F62a5c3a;\n\n address public constant NO_VESTED_ADDRESS_0 = 0x4D4a7675CC0eb0a3B1d81CbDcd828c4BD0D74155;\n\n address public constant NO_VESTED_ADDRESS_1 = 0x9CdaeBd2bcEED9EB05a3B3cccd601A40CB0026be;\n\n address public constant NO_VESTED_ADDRESS_2 = 0x9315F815002d472A3E993ac9dc7461f2601A3c09;\n\n address public constant NO_VESTED_ADDRESS_3 = 0xF96A39d61F6972d8dC0CCd2A3c082eD922E096a7;\n\n address public constant NO_VESTED_ADDRESS_4 = 0xA93Bb239509D16827B7ee9DA7dA6Fc8478837247;\n\n address public constant NO_VESTED_ADDRESS_5 = 0x99Ae889E171B82BB04FD22E254024716932e5F2f;\n\n uint256 public constant VESTING_0_AMOUNT = 20_000_000 ether;\n\n uint256 public constant VESTING_1_AMOUNT = 10_000_000 ether;\n\n uint256 public constant VESTING_2_AMOUNT = 6_200_000 ether;\n\n uint256 public constant VESTING_3_AMOUNT = 17_500_000 ether; \n\n uint256 public constant VESTING_0_ADDRESS_0_AMOUNT = 12_000_000 ether;\n\n uint256 public constant VESTING_0_ADDRESS_1_AMOUNT = 1_850_000 ether;\n\n uint256 public constant VESTING_0_ADDRESS_2_AMOUNT = 1_675_000 ether;\n\n uint256 public constant VESTING_0_ADDRESS_3_AMOUNT = 1_300_000 ether;\n\n uint256 public constant VESTING_0_ADDRESS_4_AMOUNT = 1_000_000 ether;\n\n uint256 public constant VESTING_0_ADDRESS_5_AMOUNT = 750_000 ether;\n\n uint256 public constant VESTING_0_ADDRESS_6_AMOUNT = 625_000 ether;\n\n uint256 public constant VESTING_0_ADDRESS_7_AMOUNT = 525_000 ether;\n\n uint256 public constant VESTING_0_ADDRESS_8_AMOUNT = 275_000 ether;\n\n uint256 public constant VESTING_1_ADDRESS_0_AMOUNT = 10_000_000 ether;\n\n uint256 public constant VESTING_2_ADDRESS_0_AMOUNT = 500_000 ether;\n\n uint256 public constant VESTING_3_ADDRESS_0_AMOUNT = 300_000 ether;\n\n uint256 public constant NO_VESTED_ADDRESS_0_AMOUNT = 19_000_000 ether;\n\n uint256 public constant NO_VESTED_ADDRESS_1_AMOUNT = 9_000_000 ether;\n\n uint256 public constant NO_VESTED_ADDRESS_2_AMOUNT = 7_500_000 ether;\n\n uint256 public constant NO_VESTED_ADDRESS_3_AMOUNT = 5_000_000 ether;\n\n uint256 public constant NO_VESTED_ADDRESS_4_AMOUNT = 3_000_000 ether;\n\n uint256 public constant NO_VESTED_ADDRESS_5_AMOUNT = 2_800_000 ether;\n\n uint256 public constant INTERMEDIATE_BALANCE = 46_300_000 ether;\n\n\n\n function distribute() public {\n\n require(\n\n TOKEN_ADDRESS.balanceOf(address(this)) == (100_000_000 ether), \n\n \"BootstrapDistribution::distribute NOT_ENOUGH_BALANCE\"\n\n );\n\n\n\n // Vested Tokens\n\n // Transfer HEZ tokens\n\n TOKEN_ADDRESS.transfer(address(VESTING_0),VESTING_0_AMOUNT);\n\n TOKEN_ADDRESS.transfer(address(VESTING_1),VESTING_1_AMOUNT);\n\n TOKEN_ADDRESS.transfer(address(VESTING_2),VESTING_2_AMOUNT);\n\n TOKEN_ADDRESS.transfer(address(VESTING_3),VESTING_3_AMOUNT);\n\n // Transfer vested tokens\n\n transferVestedTokens0();\n\n transferVestedTokens1();\n\n transferVestedTokens2();\n\n transferVestedTokens3();\n\n\n\n // Check intermediate balance\n\n require(\n\n TOKEN_ADDRESS.balanceOf(address(this)) == INTERMEDIATE_BALANCE,\n\n \"BootstrapDistribution::distribute NOT_ENOUGH_NO_VESTED_BALANCE\"\n\n );\n\n\n\n // No Vested Tokens\n\n TOKEN_ADDRESS.transfer(NO_VESTED_ADDRESS_0, NO_VESTED_ADDRESS_0_AMOUNT);\n\n TOKEN_ADDRESS.transfer(NO_VESTED_ADDRESS_1, NO_VESTED_ADDRESS_1_AMOUNT);\n\n TOKEN_ADDRESS.transfer(NO_VESTED_ADDRESS_2, NO_VESTED_ADDRESS_2_AMOUNT);\n\n TOKEN_ADDRESS.transfer(NO_VESTED_ADDRESS_3, NO_VESTED_ADDRESS_3_AMOUNT);\n\n TOKEN_ADDRESS.transfer(NO_VESTED_ADDRESS_4, NO_VESTED_ADDRESS_4_AMOUNT);\n\n TOKEN_ADDRESS.transfer(NO_VESTED_ADDRESS_5, NO_VESTED_ADDRESS_5_AMOUNT);\n\n\n\n require(\n\n TOKEN_ADDRESS.balanceOf(address(this)) == 0, \n\n \"BootstrapDistribution::distribute PENDING_BALANCE\"\n\n );\n\n }\n\n\n\n function transferVestedTokens0() internal {\n\n VESTING_0.move(VESTING_0_ADDRESS_0, VESTING_0_ADDRESS_0_AMOUNT);\n\n VESTING_0.move(VESTING_0_ADDRESS_1, VESTING_0_ADDRESS_1_AMOUNT);\n\n VESTING_0.move(VESTING_0_ADDRESS_2, VESTING_0_ADDRESS_2_AMOUNT);\n\n VESTING_0.move(VESTING_0_ADDRESS_3, VESTING_0_ADDRESS_3_AMOUNT);\n\n VESTING_0.move(VESTING_0_ADDRESS_4, VESTING_0_ADDRESS_4_AMOUNT);\n\n VESTING_0.move(VESTING_0_ADDRESS_5, VESTING_0_ADDRESS_5_AMOUNT);\n\n VESTING_0.move(VESTING_0_ADDRESS_6, VESTING_0_ADDRESS_6_AMOUNT);\n\n VESTING_0.move(VESTING_0_ADDRESS_7, VESTING_0_ADDRESS_7_AMOUNT);\n\n VESTING_0.move(VESTING_0_ADDRESS_8, VESTING_0_ADDRESS_8_AMOUNT);\n\n VESTING_0.changeAddress(address(0));\n\n }\n\n\n\n function transferVestedTokens1() internal {\n\n VESTING_1.move(VESTING_1_ADDRESS_0, VESTING_1_ADDRESS_0_AMOUNT);\n\n VESTING_1.changeAddress(address(0));\n\n }\n\n\n\n function transferVestedTokens2() internal {\n\n VESTING_2.move(VESTING_2_ADDRESS_0, VESTING_2_ADDRESS_0_AMOUNT);\n\n VESTING_2.changeAddress(MULTISIG_VESTING_2); \n\n }\n\n\n\n function transferVestedTokens3() internal {\n\n VESTING_3.move(VESTING_3_ADDRESS_0, VESTING_3_ADDRESS_0_AMOUNT);\n\n VESTING_3.changeAddress(MULTISIG_VESTING_3); \n\n }\n\n}\n\ncontract HermezVesting {\n\n using SafeMath for uint256;\n\n\n\n address public distributor;\n\n\n\n mapping(address => uint256) public vestedTokens;\n\n mapping(address => uint256) public withdrawed;\n\n uint256 public totalVestedTokens;\n\n\n\n uint256 public startTime;\n\n uint256 public cliffTime;\n\n uint256 public endTime;\n\n uint256 public initialPercentage;\n\n\n\n address public constant HEZ = address(\n\n 0xEEF9f339514298C6A857EfCfC1A762aF84438dEE\n\n );\n\n\n\n event Withdraw(address indexed recipient, uint256 amount);\n\n event Move(address indexed from, address indexed to, uint256 value);\n\n event ChangeAddress(address indexed oldAddress, address indexed newAddress);\n\n\n\n constructor(\n\n address _distributor,\n\n uint256 _totalVestedTokens,\n\n uint256 _startTime,\n\n uint256 _startToCliff,\n\n uint256 _startToEnd,\n\n uint256 _initialPercentage\n\n ) public {\n\n require(\n\n _startToEnd >= _startToCliff,\n\n \"HermezVesting::constructor: START_GREATER_THAN_CLIFF\"\n\n );\n\n require(\n\n _initialPercentage <= 100,\n\n \"HermezVesting::constructor: INITIALPERCENTAGE_GREATER_THAN_100\"\n\n );\n\n distributor = _distributor;\n\n totalVestedTokens = _totalVestedTokens;\n\n vestedTokens[_distributor] = _totalVestedTokens;\n\n startTime = _startTime;\n\n cliffTime = _startTime + _startToCliff;\n\n endTime = _startTime + _startToEnd;\n\n initialPercentage = _initialPercentage;\n\n }\n\n\n\n function totalTokensUnlockedAt(uint256 timestamp)\n\n public\n\n view\n\n returns (uint256)\n\n {\n\n if (timestamp < startTime) return 0;\n\n if (timestamp > endTime) return totalVestedTokens;\n\n\n\n uint256 initialAmount = totalVestedTokens.mul(initialPercentage).div(\n\n 100\n\n );\n\n if (timestamp < cliffTime) return initialAmount;\n\n\n\n uint256 deltaT = timestamp.sub(startTime);\n\n uint256 deltaTTotal = endTime.sub(startTime);\n\n uint256 deltaAmountTotal = totalVestedTokens.sub(initialAmount);\n\n return initialAmount.add(deltaT.mul(deltaAmountTotal).div(deltaTTotal));\n\n }\n\n\n\n function withdrawableTokens(address recipient)\n\n public\n\n view\n\n returns (uint256)\n\n {\n\n return withdrawableTokensAt(recipient, block.timestamp);\n\n }\n\n\n\n function withdrawableTokensAt(address recipient, uint256 timestamp)\n\n public\n\n view\n\n returns (uint256)\n\n {\n\n uint256 unlockedAmount = totalTokensUnlockedAt(timestamp)\n\n .mul(vestedTokens[recipient])\n\n .div(totalVestedTokens);\n\n return unlockedAmount.sub(withdrawed[recipient]);\n\n }\n\n\n\n function withdraw() external {\n\n require(\n\n msg.sender != distributor,\n\n \"HermezVesting::withdraw: DISTRIBUTOR_CANNOT_WITHDRAW\"\n\n );\n\n\n\n uint256 remainingToWithdraw = withdrawableTokensAt(\n\n msg.sender,\n\n block.timestamp\n\n );\n\n\n\n withdrawed[msg.sender] = withdrawed[msg.sender].add(\n\n remainingToWithdraw\n\n );\n\n\n\n require(\n\n IERC20(HEZ).transfer(msg.sender, remainingToWithdraw),\n\n \"HermezVesting::withdraw: TOKEN_TRANSFER_ERROR\"\n\n );\n\n\n\n emit Withdraw(msg.sender, remainingToWithdraw);\n\n }\n\n\n\n function move(address recipient, uint256 amount) external {\n\n require(\n\n msg.sender == distributor,\n\n \"HermezVesting::changeAddress: ONLY_DISTRIBUTOR\"\n\n );\n\n vestedTokens[msg.sender] = vestedTokens[msg.sender].sub(amount);\n\n vestedTokens[recipient] = vestedTokens[recipient].add(amount);\n\n emit Move(msg.sender, recipient, amount);\n\n }\n\n\n\n function changeAddress(address newAddress) external {\n\n require(\n\n vestedTokens[newAddress] == 0,\n\n \"HermezVesting::changeAddress: ADDRESS_HAS_BALANCE\"\n\n );\n\n require(\n\n withdrawed[newAddress] == 0,\n\n \"HermezVesting::changeAddress: ADDRESS_ALREADY_WITHDRAWED\"\n\n );\n\n\n\n vestedTokens[newAddress] = vestedTokens[msg.sender];\n\n vestedTokens[msg.sender] = 0;\n\n withdrawed[newAddress] = withdrawed[msg.sender];\n\n withdrawed[msg.sender] = 0;\n\n\n\n if (msg.sender == distributor) {\n\n distributor = newAddress;\n\n }\n\n\n\n emit ChangeAddress(msg.sender, newAddress);\n\n }\n\n}\n\ncontract LPTokenWrapper {\n\n using SafeMath for uint256;\n\n using SafeERC20 for IERC20;\n\n\n\n // Uniswap v2 HEZ/ETH pair token\n\n IERC20 public UNI = IERC20(0x4a9EFa254085F36122d4b8BD2111544F8dC77052);\n\n\n\n uint256 private _totalSupply;\n\n mapping(address => uint256) private _balances;\n\n\n\n function totalSupply() public view returns (uint256) {\n\n return _totalSupply;\n\n }\n\n\n\n function balanceOf(address account) public view returns (uint256) {\n\n return _balances[account];\n\n }\n\n\n\n function stake(uint256 amount) public virtual {\n\n _totalSupply = _totalSupply.add(amount);\n\n _balances[msg.sender] = _balances[msg.sender].add(amount);\n\n UNI.safeTransferFrom(msg.sender, address(this), amount);\n\n }\n\n\n\n function withdraw(uint256 amount) public virtual {\n\n _totalSupply = _totalSupply.sub(amount);\n\n _balances[msg.sender] = _balances[msg.sender].sub(amount);\n\n UNI.safeTransfer(msg.sender, amount);\n\n }\n\n}\n\ncontract Unipool is LPTokenWrapper, IERC777Recipient {\n\n uint256 public constant DURATION = 30 days;\n\n // Hermez Network Token\n\n IERC20 public HEZ = IERC20(0xcAEf929782361ccE9618c014D2867E423fE84ae7);\n\n\n\n IERC1820Registry private constant _ERC1820_REGISTRY = IERC1820Registry(\n\n 0x1820a4B7618BdE71Dce8cdc73aAB6C95905faD24\n\n );\n\n bytes32 private constant _ERC777_RECIPIENT_INTERFACE_HASH = keccak256(\n\n \"ERC777TokensRecipient\"\n\n );\n\n\n\n uint256 public periodFinish;\n\n uint256 public rewardRate;\n\n uint256 public lastUpdateTime;\n\n uint256 public rewardPerTokenStored;\n\n mapping(address => uint256) public userRewardPerTokenPaid;\n\n mapping(address => uint256) public rewards;\n\n\n\n event RewardAdded(uint256 reward);\n\n event Staked(address indexed user, uint256 amount);\n\n event Withdrawn(address indexed user, uint256 amount);\n\n event RewardPaid(address indexed user, uint256 reward);\n\n\n\n modifier updateReward(address account) {\n\n rewardPerTokenStored = rewardPerToken();\n\n lastUpdateTime = lastTimeRewardApplicable();\n\n if (account != address(0)) {\n\n rewards[account] = earned(account);\n\n userRewardPerTokenPaid[account] = rewardPerTokenStored;\n\n }\n\n _;\n\n }\n\n\n\n constructor() public {\n\n _ERC1820_REGISTRY.setInterfaceImplementer(\n\n address(this),\n\n _ERC777_RECIPIENT_INTERFACE_HASH,\n\n address(this)\n\n );\n\n }\n\n\n\n function lastTimeRewardApplicable() public view returns (uint256) {\n\n return Math.min(block.timestamp, periodFinish);\n\n }\n\n\n\n function rewardPerToken() public view returns (uint256) {\n\n if (totalSupply() == 0) {\n\n return rewardPerTokenStored;\n\n }\n\n require(\n\n lastTimeRewardApplicable() >= lastUpdateTime,\n\n \"lastTimeRewardApplicable < lastUpdateTime\"\n\n );\n\n return\n\n rewardPerTokenStored.add(\n\n lastTimeRewardApplicable()\n\n .sub(lastUpdateTime)\n\n .mul(rewardRate)\n\n .mul(1e18)\n\n .div(totalSupply())\n\n );\n\n }\n\n\n\n function earned(address account) public view returns (uint256) {\n\n require(\n\n rewardPerToken() >= userRewardPerTokenPaid[account],\n\n \"rewardPerToken() < userRewardPerTokenPaid[account] \"\n\n );\n\n return\n\n balanceOf(account)\n\n .mul(rewardPerToken().sub(userRewardPerTokenPaid[account]))\n\n .div(1e18)\n\n .add(rewards[account]);\n\n }\n\n\n\n // stake visibility is public as overriding LPTokenWrapper's stake() function\n\n function stake(uint256 amount) public override updateReward(msg.sender) {\n\n require(amount > 0, \"Cannot stake 0\");\n\n super.stake(amount);\n\n emit Staked(msg.sender, amount);\n\n }\n\n\n\n function withdraw(uint256 amount) public override updateReward(msg.sender) {\n\n require(amount > 0, \"Cannot withdraw 0\");\n\n super.withdraw(amount);\n\n emit Withdrawn(msg.sender, amount);\n\n }\n\n\n\n function exit() external {\n\n withdraw(balanceOf(msg.sender));\n\n getReward();\n\n }\n\n\n\n function getReward() public updateReward(msg.sender) {\n\n uint256 reward = earned(msg.sender);\n\n if (reward > 0) {\n\n rewards[msg.sender] = 0;\n\n HEZ.safeTransfer(msg.sender, reward);\n\n emit RewardPaid(msg.sender, reward);\n\n }\n\n }\n\n\n\n function tokensReceived(\n\n // solhint-disable no-unused-vars\n\n address _operator,\n\n address _from,\n\n address _to,\n\n uint256 _amount,\n\n bytes calldata _userData,\n\n bytes calldata _operatorData\n\n ) external override updateReward(address(0)) {\n\n require(_amount > 0, \"Cannot approve 0\");\n\n require(msg.sender == address(HEZ), \"Wrong token\");\n\n require(\n\n _from == 0xF35960302a07022aBa880DFFaEC2Fdd64d5BF1c1,\n\n \"Not allowed\"\n\n );\n\n\n\n if (block.timestamp >= periodFinish) {\n\n rewardRate = _amount.div(DURATION);\n\n } else {\n\n uint256 remaining = periodFinish.sub(block.timestamp);\n\n uint256 leftover = remaining.mul(rewardRate);\n\n rewardRate = _amount.add(leftover).div(DURATION);\n\n }\n\n lastUpdateTime = block.timestamp;\n\n periodFinish = block.timestamp.add(DURATION);\n\n\n\n emit RewardAdded(_amount);\n\n }\n\n}\n\ninterface IERC20 {\n\n function totalSupply() external view returns (uint256);\n\n\n\n function balanceOf(address account) external view returns (uint256);\n\n\n\n function allowance(address owner, address spender)\n\n external\n\n view\n\n returns (uint256);\n\n\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n\n\n function transfer(address recipient, uint256 amount)\n\n external\n\n returns (bool);\n\n\n\n function transferFrom(\n\n address sender,\n\n address recipient,\n\n uint256 amount\n\n ) external returns (bool);\n\n}\n\nlibrary SafeMath {\n\n string private constant ERROR_ADD_OVERFLOW = \"MATH:ADD_OVERFLOW\";\n\n string private constant ERROR_SUB_UNDERFLOW = \"MATH:SUB_UNDERFLOW\";\n\n\n\n function add(uint256 x, uint256 y) internal pure returns (uint256 z) {\n\n require((z = x + y) >= x, ERROR_ADD_OVERFLOW);\n\n }\n\n\n\n function sub(uint256 x, uint256 y) internal pure returns (uint256 z) {\n\n require((z = x - y) <= x, ERROR_SUB_UNDERFLOW);\n\n }\n\n}\n\ncontract HEZ is IERC20 {\n\n using SafeMath for uint256;\n\n\n\n uint8 public constant decimals = 18; \n\n string public constant symbol = \"HEZ\";\n\n string public constant name = \"Hermez Network Token\";\n\n uint256 public constant initialBalance = 100_000_000 * (1e18);\n\n\n\n // bytes32 public constant PERMIT_TYPEHASH = \n\n // keccak256(\"Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)\");\n\n bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;\n\n // bytes32 public constant TRANSFER_WITH_AUTHORIZATION_TYPEHASH =\n\n // keccak256(\"TransferWithAuthorization(address from,address to,uint256 value,uint256 validAfter,uint256 validBefore,bytes32 nonce)\");\n\n bytes32 public constant TRANSFER_WITH_AUTHORIZATION_TYPEHASH = 0x7c7c6cdb67a18743f49ec6fa9b35f50d52ed05cbed4cc592e13b44501c1a2267;\n\n // bytes32 public constant EIP712DOMAIN_HASH =\n\n // keccak256(\"EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)\")\n\n bytes32 public constant EIP712DOMAIN_HASH = 0x8b73c3c69bb8fe3d512ecc4cf759cc79239f7b179b0ffacaa9a75d522b39400f;\n\n // bytes32 public constant NAME_HASH =\n\n // keccak256(\"Hermez Network Token\")\n\n bytes32 public constant NAME_HASH = 0x64c0a41a0260272b78f2a5bd50d5ff7c1779bc3bba16dcff4550c7c642b0e4b4;\n\n // bytes32 public constant VERSION_HASH =\n\n // keccak256(\"1\")\n\n bytes32 public constant VERSION_HASH = 0xc89efdaa54c0f20c7adf612882df0950f5a951637e0307cdcb4c672f298b8bc6;\n\n\n\n uint256 public override totalSupply;\n\n mapping(address => uint256) public override balanceOf;\n\n mapping(address => mapping(address => uint256)) public override allowance;\n\n mapping(address => uint256) public nonces;\n\n mapping(address => mapping(bytes32 => bool)) public authorizationState;\n\n\n\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event AuthorizationUsed(address indexed authorizer, bytes32 indexed nonce);\n\n\n\n constructor(address initialHolder) public {\n\n _mint(initialHolder, initialBalance);\n\n }\n\n\n\n function _validateSignedData(\n\n address signer,\n\n bytes32 encodeData,\n\n uint8 v,\n\n bytes32 r,\n\n bytes32 s\n\n ) internal view {\n\n bytes32 domainSeparator = keccak256(\n\n abi.encode(\n\n EIP712DOMAIN_HASH,\n\n NAME_HASH,\n\n VERSION_HASH,\n\n getChainId(),\n\n address(this)\n\n )\n\n );\n\n\n\n bytes32 digest = keccak256(\n\n abi.encodePacked(\"\\x19\\x01\", domainSeparator, encodeData)\n\n );\n\n address recoveredAddress = ecrecover(digest, v, r, s);\n\n // Explicitly disallow authorizations for address(0) as ecrecover returns address(0) on malformed messages\n\n require(\n\n recoveredAddress != address(0) && recoveredAddress == signer,\n\n \"HEZ::_validateSignedData: INVALID_SIGNATURE\"\n\n );\n\n }\n\n\n\n function getChainId() public pure returns (uint256 chainId){\n\n assembly { chainId := chainid() }\n\n }\n\n\n\n function _mint(address to, uint256 value) internal {\n\n totalSupply = totalSupply.add(value);\n\n balanceOf[to] = balanceOf[to].add(value);\n\n emit Transfer(address(0), to, value);\n\n }\n\n\n\n function _burn(address from, uint value) internal {\n\n // Balance is implicitly checked with SafeMath's underflow protection\n\n balanceOf[from] = balanceOf[from].sub(value);\n\n totalSupply = totalSupply.sub(value);\n\n emit Transfer(from, address(0), value);\n\n }\n\n\n\n function _approve(\n\n address owner,\n\n address spender,\n\n uint256 value\n\n ) private {\n\n allowance[owner][spender] = value;\n\n emit Approval(owner, spender, value);\n\n }\n\n\n\n function _transfer(\n\n address from,\n\n address to,\n\n uint256 value\n\n ) private {\n\n require(\n\n to != address(this) && to != address(0),\n\n \"HEZ::_transfer: NOT_VALID_TRANSFER\"\n\n );\n\n // Balance is implicitly checked with SafeMath's underflow protection\n\n balanceOf[from] = balanceOf[from].sub(value);\n\n balanceOf[to] = balanceOf[to].add(value);\n\n emit Transfer(from, to, value);\n\n }\n\n\n\n function burn(uint256 value) external returns (bool) {\n\n _burn(msg.sender, value);\n\n return true;\n\n }\n\n\n\n function approve(address spender, uint256 value)\n\n external\n\n override\n\n returns (bool)\n\n {\n\n _approve(msg.sender, spender, value);\n\n return true;\n\n }\n\n\n\n function transfer(address to, uint256 value)\n\n external\n\n override\n\n returns (bool)\n\n {\n\n _transfer(msg.sender, to, value);\n\n return true;\n\n }\n\n\n\n function transferFrom(\n\n address from,\n\n address to,\n\n uint256 value\n\n ) external override returns (bool) {\n\n uint256 fromAllowance = allowance[from][msg.sender];\n\n if (fromAllowance != uint256(-1)) {\n\n // Allowance is implicitly checked with SafeMath's underflow protection\n\n allowance[from][msg.sender] = fromAllowance.sub(value);\n\n }\n\n _transfer(from, to, value);\n\n return true;\n\n }\n\n\n\n function permit(\n\n address owner,\n\n address spender,\n\n uint256 value,\n\n uint256 deadline,\n\n uint8 v,\n\n bytes32 r,\n\n bytes32 s\n\n ) external {\n\n require(deadline >= block.timestamp, \"HEZ::permit: AUTH_EXPIRED\");\n\n bytes32 encodeData = keccak256(\n\n abi.encode(\n\n PERMIT_TYPEHASH,\n\n owner,\n\n spender,\n\n value,\n\n nonces[owner]++,\n\n deadline\n\n )\n\n );\n\n _validateSignedData(owner, encodeData, v, r, s);\n\n _approve(owner, spender, value);\n\n }\n\n\n\n function transferWithAuthorization(\n\n address from,\n\n address to,\n\n uint256 value,\n\n uint256 validAfter,\n\n uint256 validBefore,\n\n bytes32 nonce,\n\n uint8 v,\n\n bytes32 r,\n\n bytes32 s\n\n ) external {\n\n require(block.timestamp > validAfter, \"HEZ::transferWithAuthorization: AUTH_NOT_YET_VALID\");\n\n require(block.timestamp < validBefore, \"HEZ::transferWithAuthorization: AUTH_EXPIRED\");\n\n require(!authorizationState[from][nonce], \"HEZ::transferWithAuthorization: AUTH_ALREADY_USED\");\n\n\n\n bytes32 encodeData = keccak256(\n\n abi.encode(\n\n TRANSFER_WITH_AUTHORIZATION_TYPEHASH,\n\n from,\n\n to,\n\n value,\n\n validAfter,\n\n validBefore,\n\n nonce\n\n )\n\n );\n\n _validateSignedData(from, encodeData, v, r, s);\n\n\n\n authorizationState[from][nonce] = true;\n\n _transfer(from, to, value);\n\n emit AuthorizationUsed(from, nonce);\n\n }\n\n}\n\ncontract HEZMock is HEZ {\n\n constructor(address initialHolder)\n\n public\n\n HEZ(initialHolder)\n\n {}\n\n\n\n function mint(address to, uint256 value) external {\n\n super._mint(to, value);\n\n 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0":{"kind":"number","value":678,"string":"678"},"address":{"kind":"string","value":"0xefa47d67d442b6b52867627ca55d43e72d875184"},"source_code":{"kind":"string","value":"pragma solidity 0.6.6;\npragma experimental ABIEncoderV2;\n\ncontract DSAuthEvents {\n\n event LogSetAuthority(address indexed authority);\n\n event LogSetOwner(address indexed owner);\n\n}\n\ncontract DSAuth is DSAuthEvents {\n\n DSAuthority public authority;\n\n address public owner;\n\n\n\n constructor() public {\n\n owner = msg.sender;\n\n emit LogSetOwner(msg.sender);\n\n }\n\n\n\n function setOwner(address owner_) public auth {\n\n owner = owner_;\n\n emit LogSetOwner(owner);\n\n }\n\n\n\n function setAuthority(DSAuthority authority_) public auth {\n\n authority = authority_;\n\n emit LogSetAuthority(address(authority));\n\n }\n\n\n\n modifier auth {\n\n require(isAuthorized(msg.sender, msg.sig));\n\n _;\n\n }\n\n\n\n function isAuthorized(address src, bytes4 sig) internal view returns (bool) {\n\n if (src == address(this)) {\n\n return true;\n\n } else if (src == owner) {\n\n return true;\n\n } else if (authority == DSAuthority(0)) {\n\n return false;\n\n } else {\n\n return authority.canCall(src, address(this), sig);\n\n }\n\n }\n\n}\n\nabstract contract DSAuthority {\n\n function canCall(address src, address dst, bytes4 sig) public virtual view returns (bool);\n\n}\n\nabstract contract DSGuard {\n\n function canCall(address src_, address dst_, bytes4 sig) public view virtual returns (bool);\n\n\n\n function permit(bytes32 src, bytes32 dst, bytes32 sig) public virtual;\n\n\n\n function forbid(bytes32 src, bytes32 dst, bytes32 sig) public virtual;\n\n\n\n function permit(address src, address dst, bytes32 sig) public virtual;\n\n\n\n function forbid(address src, address dst, bytes32 sig) public virtual;\n\n}\n\nabstract contract DSGuardFactory {\n\n function newGuard() public virtual returns (DSGuard guard);\n\n}\n\ncontract DSMath {\n\n function add(uint256 x, uint256 y) internal pure returns (uint256 z) {\n\n require((z = x + y) >= x);\n\n }\n\n\n\n function sub(uint256 x, uint256 y) internal pure returns (uint256 z) {\n\n require((z = x - y) <= x);\n\n }\n\n\n\n function mul(uint256 x, uint256 y) internal pure returns (uint256 z) {\n\n require(y == 0 || (z = x * y) / y == x);\n\n }\n\n\n\n function div(uint256 x, uint256 y) internal pure returns (uint256 z) {\n\n return x / y;\n\n }\n\n\n\n function min(uint256 x, uint256 y) internal pure returns (uint256 z) {\n\n return x <= y ? x : y;\n\n }\n\n\n\n function max(uint256 x, uint256 y) internal pure returns (uint256 z) {\n\n return x >= y ? x : y;\n\n }\n\n\n\n function imin(int256 x, int256 y) internal pure returns (int256 z) {\n\n return x <= y ? x : y;\n\n }\n\n\n\n function imax(int256 x, int256 y) internal pure returns (int256 z) {\n\n return x >= y ? x : y;\n\n }\n\n\n\n uint256 constant WAD = 10**18;\n\n uint256 constant RAY = 10**27;\n\n\n\n function wmul(uint256 x, uint256 y) internal pure returns (uint256 z) {\n\n z = add(mul(x, y), WAD / 2) / WAD;\n\n }\n\n\n\n function rmul(uint256 x, uint256 y) internal pure returns (uint256 z) {\n\n z = add(mul(x, y), RAY / 2) / RAY;\n\n }\n\n\n\n function wdiv(uint256 x, uint256 y) internal pure returns (uint256 z) {\n\n z = add(mul(x, WAD), y / 2) / y;\n\n }\n\n\n\n function rdiv(uint256 x, uint256 y) internal pure returns (uint256 z) {\n\n z = add(mul(x, RAY), y / 2) / y;\n\n }\n\n\n\n // This famous algorithm is called \"exponentiation by squaring\"\n\n // and calculates x^n with x as fixed-point and n as regular unsigned.\n\n //\n\n // It's O(log n), instead of O(n) for naive repeated multiplication.\n\n //\n\n // These facts are why it works:\n\n //\n\n // If n is even, then x^n = (x^2)^(n/2).\n\n // If n is odd, then x^n = x * x^(n-1),\n\n // and applying the equation for even x gives\n\n // x^n = x * (x^2)^((n-1) / 2).\n\n //\n\n // Also, EVM division is flooring and\n\n // floor[(n-1) / 2] = floor[n / 2].\n\n //\n\n function rpow(uint256 x, uint256 n) internal pure returns (uint256 z) {\n\n z = n % 2 != 0 ? x : RAY;\n\n\n\n for (n /= 2; n != 0; n /= 2) {\n\n x = rmul(x, x);\n\n\n\n if (n % 2 != 0) {\n\n z = rmul(z, x);\n\n }\n\n }\n\n }\n\n}\n\ncontract DSNote {\n\n event LogNote(\n\n bytes4 indexed sig,\n\n address indexed guy,\n\n bytes32 indexed foo,\n\n bytes32 indexed bar,\n\n uint256 wad,\n\n bytes fax\n\n ) anonymous;\n\n\n\n modifier note {\n\n bytes32 foo;\n\n bytes32 bar;\n\n\n\n assembly {\n\n foo := calldataload(4)\n\n bar := calldataload(36)\n\n }\n\n\n\n emit LogNote(msg.sig, msg.sender, foo, bar, msg.value, msg.data);\n\n\n\n _;\n\n }\n\n}\n\nabstract contract DSProxy is DSAuth, DSNote {\n\n DSProxyCache public cache; // global cache for contracts\n\n\n\n constructor(address _cacheAddr) public {\n\n require(setCache(_cacheAddr));\n\n }\n\n\n\n // solhint-disable-next-line no-empty-blocks\n\n receive() external payable {}\n\n\n\n // use the proxy to execute calldata _data on contract _code\n\n // function execute(bytes memory _code, bytes memory _data)\n\n // public\n\n // payable\n\n // virtual\n\n // returns (address target, bytes32 response);\n\n\n\n function execute(address _target, bytes memory _data)\n\n public\n\n payable\n\n virtual\n\n returns (bytes32 response);\n\n\n\n //set new cache\n\n function setCache(address _cacheAddr) public virtual payable returns (bool);\n\n}\n\ncontract DSProxyCache {\n\n mapping(bytes32 => address) cache;\n\n\n\n function read(bytes memory _code) public view returns (address) {\n\n bytes32 hash = keccak256(_code);\n\n return cache[hash];\n\n }\n\n\n\n function write(bytes memory _code) public returns (address target) {\n\n assembly {\n\n target := create(0, add(_code, 0x20), mload(_code))\n\n switch iszero(extcodesize(target))\n\n case 1 {\n\n // throw if contract failed to deploy\n\n revert(0, 0)\n\n }\n\n }\n\n bytes32 hash = keccak256(_code);\n\n cache[hash] = target;\n\n }\n\n}\n\nabstract contract DSProxyFactoryInterface {\n\n function build(address owner) public virtual returns (DSProxy proxy);\n\n}\n\ncontract Migrations {\n\n address public owner;\n\n uint public last_completed_migration;\n\n\n\n modifier restricted() {\n\n if (msg.sender == owner) _;\n\n }\n\n\n\n constructor() public {\n\n owner = msg.sender;\n\n }\n\n\n\n function setCompleted(uint completed) public restricted {\n\n last_completed_migration = completed;\n\n }\n\n\n\n function upgrade(address new_address) public restricted {\n\n Migrations upgraded = Migrations(new_address);\n\n upgraded.setCompleted(last_completed_migration);\n\n }\n\n}\n\ncontract AaveHelper is DSMath {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n address payable public constant WALLET_ADDR = 0x322d58b9E75a6918f7e7849AEe0fF09369977e08;\n\n address public constant DISCOUNT_ADDR = 0x1b14E8D511c9A4395425314f849bD737BAF8208F;\n\n\n\n uint public constant MANUAL_SERVICE_FEE = 400; // 0.25% Fee\n\n uint public constant AUTOMATIC_SERVICE_FEE = 333; // 0.3% Fee\n\n\n\n address public constant BOT_REGISTRY_ADDRESS = 0x637726f8b08a7ABE3aE3aCaB01A80E2d8ddeF77B;\n\n\n\n\taddress public constant ETH_ADDR = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n address public constant AAVE_LENDING_POOL_ADDRESSES = 0x24a42fD28C976A61Df5D00D0599C34c4f90748c8;\n\n uint public constant NINETY_NINE_PERCENT_WEI = 999900000000000000;\n\n uint16 public constant AAVE_REFERRAL_CODE = 64;\n\n\n\n /// @param _collateralAddress underlying token address\n\n /// @param _user users address\n\n\tfunction getMaxCollateral(address _collateralAddress, address _user) public view returns (uint256) {\n\n address lendingPoolAddressDataProvider = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPoolDataProvider();\n\n address lendingPoolCoreAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPoolCore();\n\n address priceOracleAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getPriceOracle();\n\n\n\n // fetch all needed data\n\n // using LTV as tokenLiquidationThreshold\n\n (,uint256 totalCollateralETH, uint256 totalBorrowsETH,,uint256 currentLiquidationThreshold,,,) = ILendingPool(lendingPoolAddressDataProvider).calculateUserGlobalData(_user);\n\n (,uint256 tokenLiquidationThreshold,,) = ILendingPool(lendingPoolCoreAddress).getReserveConfiguration(_collateralAddress);\n\n uint256 collateralPrice = IPriceOracleGetterAave(priceOracleAddress).getAssetPrice(_collateralAddress);\n\n uint256 userTokenBalance = ILendingPool(lendingPoolCoreAddress).getUserUnderlyingAssetBalance(_collateralAddress, _user);\n\n uint256 userTokenBalanceEth = wmul(userTokenBalance, collateralPrice);\n\n\n\n\t\t// if borrow is 0, return whole user balance\n\n if (totalBorrowsETH == 0) {\n\n \treturn userTokenBalance;\n\n }\n\n\n\n uint256 maxCollateralEth = div(sub(mul(currentLiquidationThreshold, totalCollateralETH), mul(totalBorrowsETH, 100)), currentLiquidationThreshold);\n\n\t\t/// @dev final amount can't be higher than users token balance\n\n maxCollateralEth = maxCollateralEth > userTokenBalanceEth ? userTokenBalanceEth : maxCollateralEth;\n\n\n\n // might happen due to wmul precision\n\n if (maxCollateralEth >= totalCollateralETH) {\n\n \treturn totalCollateralETH;\n\n }\n\n\n\n // get sum of all other reserves multiplied with their liquidation thresholds by reversing formula\n\n uint256 a = sub(wmul(currentLiquidationThreshold, totalCollateralETH), wmul(tokenLiquidationThreshold, userTokenBalanceEth));\n\n // add new collateral amount multiplied by its threshold, and then divide with new total collateral\n\n uint256 newLiquidationThreshold = wdiv(add(a, wmul(sub(userTokenBalanceEth, maxCollateralEth), tokenLiquidationThreshold)), sub(totalCollateralETH, maxCollateralEth));\n\n\n\n // if new threshold is lower than first one, calculate new max collateral with newLiquidationThreshold\n\n if (newLiquidationThreshold < currentLiquidationThreshold) {\n\n \tmaxCollateralEth = div(sub(mul(newLiquidationThreshold, totalCollateralETH), mul(totalBorrowsETH, 100)), newLiquidationThreshold);\n\n \tmaxCollateralEth = maxCollateralEth > userTokenBalanceEth ? userTokenBalanceEth : maxCollateralEth;\n\n }\n\n\n\n\n\n\t\treturn wmul(wdiv(maxCollateralEth, collateralPrice), NINETY_NINE_PERCENT_WEI);\n\n\t}\n\n\n\n\t/// @param _borrowAddress underlying token address\n\n\t/// @param _user users address\n\n\tfunction getMaxBorrow(address _borrowAddress, address _user) public view returns (uint256) {\n\n\t\taddress lendingPoolAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n\t\taddress priceOracleAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getPriceOracle();\n\n\n\n\t\t(,,,,uint256 availableBorrowsETH,,,) = ILendingPool(lendingPoolAddress).getUserAccountData(_user);\n\n\n\n\t\tuint256 borrowPrice = IPriceOracleGetterAave(priceOracleAddress).getAssetPrice(_borrowAddress);\n\n\n\n\t\treturn wmul(wdiv(availableBorrowsETH, borrowPrice), NINETY_NINE_PERCENT_WEI);\n\n\t}\n\n\n\n /// @notice Calculates the fee amount\n\n /// @param _amount Amount that is converted\n\n /// @param _user Actuall user addr not DSProxy\n\n /// @param _gasCost Ether amount of gas we are spending for tx\n\n /// @param _tokenAddr token addr. of token we are getting for the fee\n\n /// @return feeAmount The amount we took for the fee\n\n function getFee(uint _amount, address _user, uint _gasCost, address _tokenAddr) internal returns (uint feeAmount) {\n\n address priceOracleAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getPriceOracle();\n\n\n\n uint fee = MANUAL_SERVICE_FEE;\n\n\n\n if (BotRegistry(BOT_REGISTRY_ADDRESS).botList(tx.origin)) {\n\n fee = AUTOMATIC_SERVICE_FEE;\n\n }\n\n\n\n if (Discount(DISCOUNT_ADDR).isCustomFeeSet(_user)) {\n\n fee = Discount(DISCOUNT_ADDR).getCustomServiceFee(_user);\n\n }\n\n\n\n feeAmount = (fee == 0) ? 0 : (_amount / fee);\n\n\n\n if (_gasCost != 0) {\n\n uint256 price = IPriceOracleGetterAave(priceOracleAddress).getAssetPrice(_tokenAddr);\n\n _gasCost = wmul(_gasCost, price);\n\n\n\n feeAmount = add(feeAmount, _gasCost);\n\n }\n\n\n\n // fee can't go over 20% of the whole amount\n\n if (feeAmount > (_amount / 5)) {\n\n feeAmount = _amount / 5;\n\n }\n\n\n\n if (_tokenAddr == ETH_ADDR) {\n\n WALLET_ADDR.transfer(feeAmount);\n\n } else {\n\n ERC20(_tokenAddr).safeTransfer(WALLET_ADDR, feeAmount);\n\n }\n\n }\n\n\n\n /// @notice Returns the owner of the DSProxy that called the contract\n\n function getUserAddress() internal view returns (address) {\n\n DSProxy proxy = DSProxy(payable(address(this)));\n\n\n\n return proxy.owner();\n\n }\n\n\n\n /// @notice Approves token contract to pull underlying tokens from the DSProxy\n\n /// @param _tokenAddr Token we are trying to approve\n\n /// @param _caller Address which will gain the approval\n\n function approveToken(address _tokenAddr, address _caller) internal {\n\n if (_tokenAddr != ETH_ADDR) {\n\n ERC20(_tokenAddr).safeApprove(_caller, uint256(-1));\n\n }\n\n }\n\n\n\n /// @notice Send specific amount from contract to specific user\n\n /// @param _token Token we are trying to send\n\n /// @param _user User that should receive funds\n\n /// @param _amount Amount that should be sent\n\n function sendContractBalance(address _token, address _user, uint _amount) public {\n\n if (_token == ETH_ADDR) {\n\n payable(_user).transfer(_amount);\n\n } else {\n\n ERC20(_token).safeTransfer(_user, _amount);\n\n }\n\n }\n\n\n\n function sendFullContractBalance(address _token, address _user) public {\n\n if (_token == ETH_ADDR) {\n\n sendContractBalance(_token, _user, address(this).balance);\n\n } else {\n\n sendContractBalance(_token, _user, ERC20(_token).balanceOf(address(this)));\n\n }\n\n }\n\n}\n\ncontract AaveSafetyRatio is AaveHelper {\n\n\n\n function getSafetyRatio(address _user) public view returns(uint256) {\n\n address lendingPoolAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n (,,uint256 totalBorrowsETH,,uint256 availableBorrowsETH,,,) = ILendingPool(lendingPoolAddress).getUserAccountData(_user);\n\n\n\n return wdiv(add(totalBorrowsETH, availableBorrowsETH), totalBorrowsETH);\n\n }\n\n}\n\ncontract AdminAuth {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n address public owner;\n\n address public admin;\n\n\n\n modifier onlyOwner() {\n\n require(owner == msg.sender);\n\n _;\n\n }\n\n\n\n constructor() public {\n\n owner = msg.sender;\n\n }\n\n\n\n /// @notice Admin is set by owner first time, after that admin is super role and has permission to change owner\n\n /// @param _admin Address of multisig that becomes admin\n\n function setAdminByOwner(address _admin) public {\n\n require(msg.sender == owner);\n\n require(admin == address(0));\n\n\n\n admin = _admin;\n\n }\n\n\n\n /// @notice Admin is able to set new admin\n\n /// @param _admin Address of multisig that becomes new admin\n\n function setAdminByAdmin(address _admin) public {\n\n require(msg.sender == admin);\n\n\n\n admin = _admin;\n\n }\n\n\n\n /// @notice Admin is able to change owner\n\n /// @param _owner Address of new owner\n\n function setOwnerByAdmin(address _owner) public {\n\n require(msg.sender == admin);\n\n\n\n owner = _owner;\n\n }\n\n\n\n /// @notice Destroy the contract\n\n function kill() public onlyOwner {\n\n selfdestruct(payable(owner));\n\n }\n\n\n\n /// @notice withdraw stuck funds\n\n function withdrawStuckFunds(address _token, uint _amount) public onlyOwner {\n\n if (_token == 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE) {\n\n payable(owner).transfer(_amount);\n\n } else {\n\n ERC20(_token).safeTransfer(owner, _amount);\n\n }\n\n }\n\n}\n\ncontract Auth is AdminAuth {\n\n\n\n\tbool public ALL_AUTHORIZED = false;\n\n\n\n\tmapping(address => bool) public authorized;\n\n\n\n\tmodifier onlyAuthorized() {\n\n require(ALL_AUTHORIZED || authorized[msg.sender]);\n\n _;\n\n }\n\n\n\n\tconstructor() public {\n\n\t\tauthorized[msg.sender] = true;\n\n\t}\n\n\n\n\tfunction setAuthorized(address _user, bool _approved) public onlyOwner {\n\n\t\tauthorized[_user] = _approved;\n\n\t}\n\n\n\n\tfunction setAllAuthorized(bool _authorized) public onlyOwner {\n\n\t\tALL_AUTHORIZED = _authorized;\n\n\t}\n\n}\n\ncontract ProxyPermission {\n\n address public constant FACTORY_ADDRESS = 0x5a15566417e6C1c9546523066500bDDBc53F88C7;\n\n\n\n /// @notice Called in the context of DSProxy to authorize an address\n\n /// @param _contractAddr Address which will be authorized\n\n function givePermission(address _contractAddr) public {\n\n address currAuthority = address(DSAuth(address(this)).authority());\n\n DSGuard guard = DSGuard(currAuthority);\n\n\n\n if (currAuthority == address(0)) {\n\n guard = DSGuardFactory(FACTORY_ADDRESS).newGuard();\n\n DSAuth(address(this)).setAuthority(DSAuthority(address(guard)));\n\n }\n\n\n\n guard.permit(_contractAddr, address(this), bytes4(keccak256(\"execute(address,bytes)\")));\n\n }\n\n\n\n /// @notice Called in the context of DSProxy to remove authority of an address\n\n /// @param _contractAddr Auth address which will be removed from authority list\n\n function removePermission(address _contractAddr) public {\n\n address currAuthority = address(DSAuth(address(this)).authority());\n\n \n\n // if there is no authority, that means that contract doesn't have permission\n\n if (currAuthority == address(0)) {\n\n return;\n\n }\n\n\n\n DSGuard guard = DSGuard(currAuthority);\n\n guard.forbid(_contractAddr, address(this), bytes4(keccak256(\"execute(address,bytes)\")));\n\n }\n\n}\n\ncontract CompoundMonitorProxy is AdminAuth {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n uint public CHANGE_PERIOD;\n\n address public monitor;\n\n address public newMonitor;\n\n address public lastMonitor;\n\n uint public changeRequestedTimestamp;\n\n\n\n mapping(address => bool) public allowed;\n\n\n\n event MonitorChangeInitiated(address oldMonitor, address newMonitor);\n\n event MonitorChangeCanceled();\n\n event MonitorChangeFinished(address monitor);\n\n event MonitorChangeReverted(address monitor);\n\n\n\n // if someone who is allowed become malicious, owner can't be changed\n\n modifier onlyAllowed() {\n\n require(allowed[msg.sender] || msg.sender == owner);\n\n _;\n\n }\n\n\n\n modifier onlyMonitor() {\n\n require (msg.sender == monitor);\n\n _;\n\n }\n\n\n\n constructor(uint _changePeriod) public {\n\n CHANGE_PERIOD = _changePeriod * 1 days;\n\n }\n\n\n\n /// @notice Only monitor contract is able to call execute on users proxy\n\n /// @param _owner Address of cdp owner (users DSProxy address)\n\n /// @param _compoundSaverProxy Address of CompoundSaverProxy\n\n /// @param _data Data to send to CompoundSaverProxy\n\n function callExecute(address _owner, address _compoundSaverProxy, bytes memory _data) public payable onlyMonitor {\n\n // execute reverts if calling specific method fails\n\n DSProxyInterface(_owner).execute{value: msg.value}(_compoundSaverProxy, _data);\n\n\n\n // return if anything left\n\n if (address(this).balance > 0) {\n\n msg.sender.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n /// @notice Allowed users are able to set Monitor contract without any waiting period first time\n\n /// @param _monitor Address of Monitor contract\n\n function setMonitor(address _monitor) public onlyAllowed {\n\n require(monitor == address(0));\n\n monitor = _monitor;\n\n }\n\n\n\n /// @notice Allowed users are able to start procedure for changing monitor\n\n /// @dev after CHANGE_PERIOD needs to call confirmNewMonitor to actually make a change\n\n /// @param _newMonitor address of new monitor\n\n function changeMonitor(address _newMonitor) public onlyAllowed {\n\n require(changeRequestedTimestamp == 0);\n\n\n\n changeRequestedTimestamp = now;\n\n lastMonitor = monitor;\n\n newMonitor = _newMonitor;\n\n\n\n emit MonitorChangeInitiated(lastMonitor, newMonitor);\n\n }\n\n\n\n /// @notice At any point allowed users are able to cancel monitor change\n\n function cancelMonitorChange() public onlyAllowed {\n\n require(changeRequestedTimestamp > 0);\n\n\n\n changeRequestedTimestamp = 0;\n\n newMonitor = address(0);\n\n\n\n emit MonitorChangeCanceled();\n\n }\n\n\n\n /// @notice Anyone is able to confirm new monitor after CHANGE_PERIOD if process is started\n\n function confirmNewMonitor() public onlyAllowed {\n\n require((changeRequestedTimestamp + CHANGE_PERIOD) < now);\n\n require(changeRequestedTimestamp != 0);\n\n require(newMonitor != address(0));\n\n\n\n monitor = newMonitor;\n\n newMonitor = address(0);\n\n changeRequestedTimestamp = 0;\n\n\n\n emit MonitorChangeFinished(monitor);\n\n }\n\n\n\n /// @notice Its possible to revert monitor to last used monitor\n\n function revertMonitor() public onlyAllowed {\n\n require(lastMonitor != address(0));\n\n\n\n monitor = lastMonitor;\n\n\n\n emit MonitorChangeReverted(monitor);\n\n }\n\n\n\n\n\n /// @notice Allowed users are able to add new allowed user\n\n /// @param _user Address of user that will be allowed\n\n function addAllowed(address _user) public onlyAllowed {\n\n allowed[_user] = true;\n\n }\n\n\n\n /// @notice Allowed users are able to remove allowed user\n\n /// @dev owner is always allowed even if someone tries to remove it from allowed mapping\n\n /// @param _user Address of allowed user\n\n function removeAllowed(address _user) public onlyAllowed {\n\n allowed[_user] = false;\n\n }\n\n\n\n function setChangePeriod(uint _periodInDays) public onlyAllowed {\n\n require(_periodInDays * 1 days > CHANGE_PERIOD);\n\n\n\n CHANGE_PERIOD = _periodInDays * 1 days;\n\n }\n\n\n\n /// @notice In case something is left in contract, owner is able to withdraw it\n\n /// @param _token address of token to withdraw balance\n\n function withdrawToken(address _token) public onlyOwner {\n\n uint balance = ERC20(_token).balanceOf(address(this));\n\n ERC20(_token).safeTransfer(msg.sender, balance);\n\n }\n\n\n\n /// @notice In case something is left in contract, owner is able to withdraw it\n\n function withdrawEth() public onlyOwner {\n\n uint balance = address(this).balance;\n\n msg.sender.transfer(balance);\n\n }\n\n}\n\ncontract CompoundSubscriptions is AdminAuth {\n\n\n\n struct CompoundHolder {\n\n address user;\n\n uint128 minRatio;\n\n uint128 maxRatio;\n\n uint128 optimalRatioBoost;\n\n uint128 optimalRatioRepay;\n\n bool boostEnabled;\n\n }\n\n\n\n struct SubPosition {\n\n uint arrPos;\n\n bool subscribed;\n\n }\n\n\n\n CompoundHolder[] public subscribers;\n\n mapping (address => SubPosition) public subscribersPos;\n\n\n\n uint public changeIndex;\n\n\n\n event Subscribed(address indexed user);\n\n event Unsubscribed(address indexed user);\n\n event Updated(address indexed user);\n\n event ParamUpdates(address indexed user, uint128, uint128, uint128, uint128, bool);\n\n\n\n /// @dev Called by the DSProxy contract which owns the Compound position\n\n /// @notice Adds the users Compound poistion in the list of subscriptions so it can be monitored\n\n /// @param _minRatio Minimum ratio below which repay is triggered\n\n /// @param _maxRatio Maximum ratio after which boost is triggered\n\n /// @param _optimalBoost Ratio amount which boost should target\n\n /// @param _optimalRepay Ratio amount which repay should target\n\n /// @param _boostEnabled Boolean determing if boost is enabled\n\n function subscribe(uint128 _minRatio, uint128 _maxRatio, uint128 _optimalBoost, uint128 _optimalRepay, bool _boostEnabled) external {\n\n\n\n // if boost is not enabled, set max ratio to max uint\n\n uint128 localMaxRatio = _boostEnabled ? _maxRatio : uint128(-1);\n\n require(checkParams(_minRatio, localMaxRatio), \"Must be correct params\");\n\n\n\n SubPosition storage subInfo = subscribersPos[msg.sender];\n\n\n\n CompoundHolder memory subscription = CompoundHolder({\n\n minRatio: _minRatio,\n\n maxRatio: localMaxRatio,\n\n optimalRatioBoost: _optimalBoost,\n\n optimalRatioRepay: _optimalRepay,\n\n user: msg.sender,\n\n boostEnabled: _boostEnabled\n\n });\n\n\n\n changeIndex++;\n\n\n\n if (subInfo.subscribed) {\n\n subscribers[subInfo.arrPos] = subscription;\n\n\n\n emit Updated(msg.sender);\n\n emit ParamUpdates(msg.sender, _minRatio, localMaxRatio, _optimalBoost, _optimalRepay, _boostEnabled);\n\n } else {\n\n subscribers.push(subscription);\n\n\n\n subInfo.arrPos = subscribers.length - 1;\n\n subInfo.subscribed = true;\n\n\n\n emit Subscribed(msg.sender);\n\n }\n\n }\n\n\n\n /// @notice Called by the users DSProxy\n\n /// @dev Owner who subscribed cancels his subscription\n\n function unsubscribe() external {\n\n _unsubscribe(msg.sender);\n\n }\n\n\n\n /// @dev Checks limit if minRatio is bigger than max\n\n /// @param _minRatio Minimum ratio, bellow which repay can be triggered\n\n /// @param _maxRatio Maximum ratio, over which boost can be triggered\n\n /// @return Returns bool if the params are correct\n\n function checkParams(uint128 _minRatio, uint128 _maxRatio) internal pure returns (bool) {\n\n\n\n if (_minRatio > _maxRatio) {\n\n return false;\n\n }\n\n\n\n return true;\n\n }\n\n\n\n /// @dev Internal method to remove a subscriber from the list\n\n /// @param _user The actual address that owns the Compound position\n\n function _unsubscribe(address _user) internal {\n\n require(subscribers.length > 0, \"Must have subscribers in the list\");\n\n\n\n SubPosition storage subInfo = subscribersPos[_user];\n\n\n\n require(subInfo.subscribed, \"Must first be subscribed\");\n\n\n\n address lastOwner = subscribers[subscribers.length - 1].user;\n\n\n\n SubPosition storage subInfo2 = subscribersPos[lastOwner];\n\n subInfo2.arrPos = subInfo.arrPos;\n\n\n\n subscribers[subInfo.arrPos] = subscribers[subscribers.length - 1];\n\n subscribers.pop(); // remove last element and reduce arr length\n\n\n\n changeIndex++;\n\n subInfo.subscribed = false;\n\n subInfo.arrPos = 0;\n\n\n\n emit Unsubscribed(msg.sender);\n\n }\n\n\n\n /// @dev Checks if the user is subscribed\n\n /// @param _user The actual address that owns the Compound position\n\n /// @return If the user is subscribed\n\n function isSubscribed(address _user) public view returns (bool) {\n\n SubPosition storage subInfo = subscribersPos[_user];\n\n\n\n return subInfo.subscribed;\n\n }\n\n\n\n /// @dev Returns subscribtion information about a user\n\n /// @param _user The actual address that owns the Compound position\n\n /// @return Subscription information about the user if exists\n\n function getHolder(address _user) public view returns (CompoundHolder memory) {\n\n SubPosition storage subInfo = subscribersPos[_user];\n\n\n\n return subscribers[subInfo.arrPos];\n\n }\n\n\n\n /// @notice Helper method to return all the subscribed CDPs\n\n /// @return List of all subscribers\n\n function getSubscribers() public view returns (CompoundHolder[] memory) {\n\n return subscribers;\n\n }\n\n\n\n /// @notice Helper method for the frontend, returns all the subscribed CDPs paginated\n\n /// @param _page What page of subscribers you want\n\n /// @param _perPage Number of entries per page\n\n /// @return List of all subscribers for that page\n\n function getSubscribersByPage(uint _page, uint _perPage) public view returns (CompoundHolder[] memory) {\n\n CompoundHolder[] memory holders = new CompoundHolder[](_perPage);\n\n\n\n uint start = _page * _perPage;\n\n uint end = start + _perPage;\n\n\n\n end = (end > holders.length) ? holders.length : end;\n\n\n\n uint count = 0;\n\n for (uint i = start; i < end; i++) {\n\n holders[count] = subscribers[i];\n\n count++;\n\n }\n\n\n\n return holders;\n\n }\n\n\n\n ////////////// ADMIN METHODS ///////////////////\n\n\n\n /// @notice Admin function to unsubscribe a CDP\n\n /// @param _user The actual address that owns the Compound position\n\n function unsubscribeByAdmin(address _user) public onlyOwner {\n\n SubPosition storage subInfo = subscribersPos[_user];\n\n\n\n if (subInfo.subscribed) {\n\n _unsubscribe(_user);\n\n }\n\n }\n\n}\n\ncontract CompoundSubscriptionsProxy is ProxyPermission {\n\n\n\n address public constant COMPOUND_SUBSCRIPTION_ADDRESS = 0x52015EFFD577E08f498a0CCc11905925D58D6207;\n\n address public constant COMPOUND_MONITOR_PROXY = 0xB1cF8DE8e791E4Ed1Bd86c03E2fc1f14389Cb10a;\n\n\n\n /// @notice Calls subscription contract and creates a DSGuard if non existent\n\n /// @param _minRatio Minimum ratio below which repay is triggered\n\n /// @param _maxRatio Maximum ratio after which boost is triggered\n\n /// @param _optimalRatioBoost Ratio amount which boost should target\n\n /// @param _optimalRatioRepay Ratio amount which repay should target\n\n /// @param _boostEnabled Boolean determing if boost is enabled\n\n function subscribe(\n\n uint128 _minRatio,\n\n uint128 _maxRatio,\n\n uint128 _optimalRatioBoost,\n\n uint128 _optimalRatioRepay,\n\n bool _boostEnabled\n\n ) public {\n\n givePermission(COMPOUND_MONITOR_PROXY);\n\n ICompoundSubscription(COMPOUND_SUBSCRIPTION_ADDRESS).subscribe(\n\n _minRatio, _maxRatio, _optimalRatioBoost, _optimalRatioRepay, _boostEnabled);\n\n }\n\n\n\n /// @notice Calls subscription contract and updated existing parameters\n\n /// @dev If subscription is non existent this will create one\n\n /// @param _minRatio Minimum ratio below which repay is triggered\n\n /// @param _maxRatio Maximum ratio after which boost is triggered\n\n /// @param _optimalRatioBoost Ratio amount which boost should target\n\n /// @param _optimalRatioRepay Ratio amount which repay should target\n\n /// @param _boostEnabled Boolean determing if boost is enabled\n\n function update(\n\n uint128 _minRatio,\n\n uint128 _maxRatio,\n\n uint128 _optimalRatioBoost,\n\n uint128 _optimalRatioRepay,\n\n bool _boostEnabled\n\n ) public {\n\n ICompoundSubscription(COMPOUND_SUBSCRIPTION_ADDRESS).subscribe(_minRatio, _maxRatio, _optimalRatioBoost, _optimalRatioRepay, _boostEnabled);\n\n }\n\n\n\n /// @notice Calls the subscription contract to unsubscribe the caller\n\n function unsubscribe() public {\n\n removePermission(COMPOUND_MONITOR_PROXY);\n\n ICompoundSubscription(COMPOUND_SUBSCRIPTION_ADDRESS).unsubscribe();\n\n }\n\n}\n\ncontract CompoundCreateTaker is ProxyPermission {\n\n using SafeERC20 for ERC20;\n\n\n\n address public constant ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n ILendingPool public constant lendingPool = ILendingPool(0x398eC7346DcD622eDc5ae82352F02bE94C62d119);\n\n\n\n // solhint-disable-next-line const-name-snakecase\n\n DefisaverLogger public constant logger = DefisaverLogger(0x5c55B921f590a89C1Ebe84dF170E655a82b62126);\n\n\n\n struct CreateInfo {\n\n address cCollAddress;\n\n address cBorrowAddress;\n\n uint depositAmount;\n\n }\n\n\n\n /// @notice Main function which will take a FL and open a leverage position\n\n /// @dev Call through DSProxy, if _exchangeData.destAddr is a token approve DSProxy\n\n /// @param _createInfo [cCollAddress, cBorrowAddress, depositAmount]\n\n /// @param _exchangeData Exchange data struct\n\n function openLeveragedLoan(\n\n CreateInfo memory _createInfo,\n\n SaverExchangeCore.ExchangeData memory _exchangeData,\n\n address payable _compReceiver\n\n ) public payable {\n\n uint loanAmount = _exchangeData.srcAmount;\n\n\n\n // Pull tokens from user\n\n if (_exchangeData.destAddr != ETH_ADDRESS) {\n\n ERC20(_exchangeData.destAddr).safeTransferFrom(msg.sender, address(this), _createInfo.depositAmount);\n\n } else {\n\n require(msg.value >= _createInfo.depositAmount, \"Must send correct amount of eth\");\n\n }\n\n\n\n // Send tokens to FL receiver\n\n sendDeposit(_compReceiver, _exchangeData.destAddr);\n\n\n\n // Pack the struct data\n\n (uint[4] memory numData, address[6] memory cAddresses, bytes memory callData)\n\n = _packData(_createInfo, _exchangeData);\n\n bytes memory paramsData = abi.encode(numData, cAddresses, callData, address(this));\n\n\n\n givePermission(_compReceiver);\n\n\n\n lendingPool.flashLoan(_compReceiver, _exchangeData.srcAddr, loanAmount, paramsData);\n\n\n\n removePermission(_compReceiver);\n\n\n\n logger.Log(address(this), msg.sender, \"CompoundLeveragedLoan\",\n\n abi.encode(_exchangeData.srcAddr, _exchangeData.destAddr, _exchangeData.srcAmount, _exchangeData.destAmount));\n\n }\n\n\n\n function sendDeposit(address payable _compoundReceiver, address _token) internal {\n\n if (_token != ETH_ADDRESS) {\n\n ERC20(_token).safeTransfer(_compoundReceiver, ERC20(_token).balanceOf(address(this)));\n\n }\n\n\n\n _compoundReceiver.transfer(address(this).balance);\n\n }\n\n\n\n function _packData(\n\n CreateInfo memory _createInfo,\n\n SaverExchangeCore.ExchangeData memory exchangeData\n\n ) internal pure returns (uint[4] memory numData, address[6] memory cAddresses, bytes memory callData) {\n\n\n\n numData = [\n\n exchangeData.srcAmount,\n\n exchangeData.destAmount,\n\n exchangeData.minPrice,\n\n exchangeData.price0x\n\n ];\n\n\n\n cAddresses = [\n\n _createInfo.cCollAddress,\n\n _createInfo.cBorrowAddress,\n\n exchangeData.srcAddr,\n\n exchangeData.destAddr,\n\n exchangeData.exchangeAddr,\n\n exchangeData.wrapper\n\n ];\n\n\n\n callData = exchangeData.callData;\n\n }\n\n}\n\ncontract CarefulMath {\n\n\n\n /**\n\n * @dev Possible error codes that we can return\n\n */\n\n enum MathError {\n\n NO_ERROR,\n\n DIVISION_BY_ZERO,\n\n INTEGER_OVERFLOW,\n\n INTEGER_UNDERFLOW\n\n }\n\n\n\n /**\n\n * @dev Multiplies two numbers, returns an error on overflow.\n\n */\n\n function mulUInt(uint a, uint b) internal pure returns (MathError, uint) {\n\n if (a == 0) {\n\n return (MathError.NO_ERROR, 0);\n\n }\n\n\n\n uint c = a * b;\n\n\n\n if (c / a != b) {\n\n return (MathError.INTEGER_OVERFLOW, 0);\n\n } else {\n\n return (MathError.NO_ERROR, c);\n\n }\n\n }\n\n\n\n /**\n\n * @dev Integer division of two numbers, truncating the quotient.\n\n */\n\n function divUInt(uint a, uint b) internal pure returns (MathError, uint) {\n\n if (b == 0) {\n\n return (MathError.DIVISION_BY_ZERO, 0);\n\n }\n\n\n\n return (MathError.NO_ERROR, a / b);\n\n }\n\n\n\n /**\n\n * @dev Subtracts two numbers, returns an error on overflow (i.e. if subtrahend is greater than minuend).\n\n */\n\n function subUInt(uint a, uint b) internal pure returns (MathError, uint) {\n\n if (b <= a) {\n\n return (MathError.NO_ERROR, a - b);\n\n } else {\n\n return (MathError.INTEGER_UNDERFLOW, 0);\n\n }\n\n }\n\n\n\n /**\n\n * @dev Adds two numbers, returns an error on overflow.\n\n */\n\n function addUInt(uint a, uint b) internal pure returns (MathError, uint) {\n\n uint c = a + b;\n\n\n\n if (c >= a) {\n\n return (MathError.NO_ERROR, c);\n\n } else {\n\n return (MathError.INTEGER_OVERFLOW, 0);\n\n }\n\n }\n\n\n\n /**\n\n * @dev add a and b and then subtract c\n\n */\n\n function addThenSubUInt(uint a, uint b, uint c) internal pure returns (MathError, uint) {\n\n (MathError err0, uint sum) = addUInt(a, b);\n\n\n\n if (err0 != MathError.NO_ERROR) {\n\n return (err0, 0);\n\n }\n\n\n\n return subUInt(sum, c);\n\n }\n\n}\n\ncontract Exponential is CarefulMath {\n\n uint constant expScale = 1e18;\n\n uint constant halfExpScale = expScale/2;\n\n uint constant mantissaOne = expScale;\n\n\n\n struct Exp {\n\n uint mantissa;\n\n }\n\n\n\n /**\n\n * @dev Creates an exponential from numerator and denominator values.\n\n * Note: Returns an error if (`num` * 10e18) > MAX_INT,\n\n * or if `denom` is zero.\n\n */\n\n function getExp(uint num, uint denom) pure internal returns (MathError, Exp memory) {\n\n (MathError err0, uint scaledNumerator) = mulUInt(num, expScale);\n\n if (err0 != MathError.NO_ERROR) {\n\n return (err0, Exp({mantissa: 0}));\n\n }\n\n\n\n (MathError err1, uint rational) = divUInt(scaledNumerator, denom);\n\n if (err1 != MathError.NO_ERROR) {\n\n return (err1, Exp({mantissa: 0}));\n\n }\n\n\n\n return (MathError.NO_ERROR, Exp({mantissa: rational}));\n\n }\n\n\n\n /**\n\n * @dev Adds two exponentials, returning a new exponential.\n\n */\n\n function addExp(Exp memory a, Exp memory b) pure internal returns (MathError, Exp memory) {\n\n (MathError error, uint result) = addUInt(a.mantissa, b.mantissa);\n\n\n\n return (error, Exp({mantissa: result}));\n\n }\n\n\n\n /**\n\n * @dev Subtracts two exponentials, returning a new exponential.\n\n */\n\n function subExp(Exp memory a, Exp memory b) pure internal returns (MathError, Exp memory) {\n\n (MathError error, uint result) = subUInt(a.mantissa, b.mantissa);\n\n\n\n return (error, Exp({mantissa: result}));\n\n }\n\n\n\n /**\n\n * @dev Multiply an Exp by a scalar, returning a new Exp.\n\n */\n\n function mulScalar(Exp memory a, uint scalar) pure internal returns (MathError, Exp memory) {\n\n (MathError err0, uint scaledMantissa) = mulUInt(a.mantissa, scalar);\n\n if (err0 != MathError.NO_ERROR) {\n\n return (err0, Exp({mantissa: 0}));\n\n }\n\n\n\n return (MathError.NO_ERROR, Exp({mantissa: scaledMantissa}));\n\n }\n\n\n\n /**\n\n * @dev Multiply an Exp by a scalar, then truncate to return an unsigned integer.\n\n */\n\n function mulScalarTruncate(Exp memory a, uint scalar) pure internal returns (MathError, uint) {\n\n (MathError err, Exp memory product) = mulScalar(a, scalar);\n\n if (err != MathError.NO_ERROR) {\n\n return (err, 0);\n\n }\n\n\n\n return (MathError.NO_ERROR, truncate(product));\n\n }\n\n\n\n /**\n\n * @dev Multiply an Exp by a scalar, truncate, then add an to an unsigned integer, returning an unsigned integer.\n\n */\n\n function mulScalarTruncateAddUInt(Exp memory a, uint scalar, uint addend) pure internal returns (MathError, uint) {\n\n (MathError err, Exp memory product) = mulScalar(a, scalar);\n\n if (err != MathError.NO_ERROR) {\n\n return (err, 0);\n\n }\n\n\n\n return addUInt(truncate(product), addend);\n\n }\n\n\n\n /**\n\n * @dev Divide an Exp by a scalar, returning a new Exp.\n\n */\n\n function divScalar(Exp memory a, uint scalar) pure internal returns (MathError, Exp memory) {\n\n (MathError err0, uint descaledMantissa) = divUInt(a.mantissa, scalar);\n\n if (err0 != MathError.NO_ERROR) {\n\n return (err0, Exp({mantissa: 0}));\n\n }\n\n\n\n return (MathError.NO_ERROR, Exp({mantissa: descaledMantissa}));\n\n }\n\n\n\n /**\n\n * @dev Divide a scalar by an Exp, returning a new Exp.\n\n */\n\n function divScalarByExp(uint scalar, Exp memory divisor) pure internal returns (MathError, Exp memory) {\n\n /*\n\n We are doing this as:\n\n getExp(mulUInt(expScale, scalar), divisor.mantissa)\n\n\n\n How it works:\n\n Exp = a / b;\n\n Scalar = s;\n\n `s / (a / b)` = `b * s / a` and since for an Exp `a = mantissa, b = expScale`\n\n */\n\n (MathError err0, uint numerator) = mulUInt(expScale, scalar);\n\n if (err0 != MathError.NO_ERROR) {\n\n return (err0, Exp({mantissa: 0}));\n\n }\n\n return getExp(numerator, divisor.mantissa);\n\n }\n\n\n\n /**\n\n * @dev Divide a scalar by an Exp, then truncate to return an unsigned integer.\n\n */\n\n function divScalarByExpTruncate(uint scalar, Exp memory divisor) pure internal returns (MathError, uint) {\n\n (MathError err, Exp memory fraction) = divScalarByExp(scalar, divisor);\n\n if (err != MathError.NO_ERROR) {\n\n return (err, 0);\n\n }\n\n\n\n return (MathError.NO_ERROR, truncate(fraction));\n\n }\n\n\n\n /**\n\n * @dev Multiplies two exponentials, returning a new exponential.\n\n */\n\n function mulExp(Exp memory a, Exp memory b) pure internal returns (MathError, Exp memory) {\n\n\n\n (MathError err0, uint doubleScaledProduct) = mulUInt(a.mantissa, b.mantissa);\n\n if (err0 != MathError.NO_ERROR) {\n\n return (err0, Exp({mantissa: 0}));\n\n }\n\n\n\n // We add half the scale before dividing so that we get rounding instead of truncation.\n\n // See \"Listing 6\" and text above it at https://accu.org/index.php/journals/1717\n\n // Without this change, a result like 6.6...e-19 will be truncated to 0 instead of being rounded to 1e-18.\n\n (MathError err1, uint doubleScaledProductWithHalfScale) = addUInt(halfExpScale, doubleScaledProduct);\n\n if (err1 != MathError.NO_ERROR) {\n\n return (err1, Exp({mantissa: 0}));\n\n }\n\n\n\n (MathError err2, uint product) = divUInt(doubleScaledProductWithHalfScale, expScale);\n\n // The only error `div` can return is MathError.DIVISION_BY_ZERO but we control `expScale` and it is not zero.\n\n assert(err2 == MathError.NO_ERROR);\n\n\n\n return (MathError.NO_ERROR, Exp({mantissa: product}));\n\n }\n\n\n\n /**\n\n * @dev Multiplies two exponentials given their mantissas, returning a new exponential.\n\n */\n\n function mulExp(uint a, uint b) pure internal returns (MathError, Exp memory) {\n\n return mulExp(Exp({mantissa: a}), Exp({mantissa: b}));\n\n }\n\n\n\n /**\n\n * @dev Multiplies three exponentials, returning a new exponential.\n\n */\n\n function mulExp3(Exp memory a, Exp memory b, Exp memory c) pure internal returns (MathError, Exp memory) {\n\n (MathError err, Exp memory ab) = mulExp(a, b);\n\n if (err != MathError.NO_ERROR) {\n\n return (err, ab);\n\n }\n\n return mulExp(ab, c);\n\n }\n\n\n\n /**\n\n * @dev Divides two exponentials, returning a new exponential.\n\n * (a/scale) / (b/scale) = (a/scale) * (scale/b) = a/b,\n\n * which we can scale as an Exp by calling getExp(a.mantissa, b.mantissa)\n\n */\n\n function divExp(Exp memory a, Exp memory b) pure internal returns (MathError, Exp memory) {\n\n return getExp(a.mantissa, b.mantissa);\n\n }\n\n\n\n /**\n\n * @dev Truncates the given exp to a whole number value.\n\n * For example, truncate(Exp{mantissa: 15 * expScale}) = 15\n\n */\n\n function truncate(Exp memory exp) pure internal returns (uint) {\n\n // Note: We are not using careful math here as we're performing a division that cannot fail\n\n return exp.mantissa / expScale;\n\n }\n\n\n\n /**\n\n * @dev Checks if first Exp is less than second Exp.\n\n */\n\n function lessThanExp(Exp memory left, Exp memory right) pure internal returns (bool) {\n\n return left.mantissa < right.mantissa;\n\n }\n\n\n\n /**\n\n * @dev Checks if left Exp <= right Exp.\n\n */\n\n function lessThanOrEqualExp(Exp memory left, Exp memory right) pure internal returns (bool) {\n\n return left.mantissa <= right.mantissa;\n\n }\n\n\n\n /**\n\n * @dev Checks if left Exp > right Exp.\n\n */\n\n function greaterThanExp(Exp memory left, Exp memory right) pure internal returns (bool) {\n\n return left.mantissa > right.mantissa;\n\n }\n\n\n\n /**\n\n * @dev returns true if Exp is exactly zero\n\n */\n\n function isZeroExp(Exp memory value) pure internal returns (bool) {\n\n return value.mantissa == 0;\n\n }\n\n}\n\ncontract CompoundBorrowProxy {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n address public constant ETH_ADDR = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n address public constant COMPTROLLER_ADDR = 0x3d9819210A31b4961b30EF54bE2aeD79B9c9Cd3B;\n\n\n\n function borrow(address _cCollToken, address _cBorrowToken, address _borrowToken, uint _amount) public {\n\n address[] memory markets = new address[](2);\n\n markets[0] = _cCollToken;\n\n markets[1] = _cBorrowToken;\n\n\n\n ComptrollerInterface(COMPTROLLER_ADDR).enterMarkets(markets);\n\n\n\n require(CTokenInterface(_cBorrowToken).borrow(_amount) == 0);\n\n\n\n // withdraw funds to msg.sender\n\n if (_borrowToken != ETH_ADDR) {\n\n ERC20(_borrowToken).safeTransfer(msg.sender, ERC20(_borrowToken).balanceOf(address(this)));\n\n } else {\n\n msg.sender.transfer(address(this).balance);\n\n }\n\n }\n\n}\n\ncontract AllowanceProxy is AdminAuth {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n address public constant KYBER_ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n\n\n // TODO: Real saver exchange address\n\n SaverExchange saverExchange = SaverExchange(0x235abFAd01eb1BDa28Ef94087FBAA63E18074926);\n\n\n\n function callSell(SaverExchangeCore.ExchangeData memory exData) public payable {\n\n pullAndSendTokens(exData.srcAddr, exData.srcAmount);\n\n\n\n saverExchange.sell{value: msg.value}(exData, msg.sender);\n\n }\n\n\n\n function callBuy(SaverExchangeCore.ExchangeData memory exData) public payable {\n\n pullAndSendTokens(exData.srcAddr, exData.srcAmount);\n\n\n\n saverExchange.buy{value: msg.value}(exData, msg.sender);\n\n }\n\n\n\n function pullAndSendTokens(address _tokenAddr, uint _amount) internal {\n\n if (_tokenAddr == KYBER_ETH_ADDRESS) {\n\n require(msg.value >= _amount, \"msg.value smaller than amount\");\n\n } else {\n\n ERC20(_tokenAddr).safeTransferFrom(msg.sender, address(saverExchange), _amount);\n\n }\n\n }\n\n\n\n function ownerChangeExchange(address payable _newExchange) public onlyOwner {\n\n saverExchange = SaverExchange(_newExchange);\n\n }\n\n}\n\ncontract Prices is DSMath {\n\n\n\n address public constant KYBER_ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n\n\n enum ActionType { SELL, BUY }\n\n\n\n\n\n /// @notice Returns the best estimated price from 2 exchanges\n\n /// @param _amount Amount of source tokens you want to exchange\n\n /// @param _srcToken Address of the source token\n\n /// @param _destToken Address of the destination token\n\n /// @param _type Type of action SELL|BUY\n\n /// @param _wrappers Array of wrapper addresses to compare\n\n /// @return (address, uint) The address of the best exchange and the exchange price\n\n function getBestPrice(\n\n uint256 _amount,\n\n address _srcToken,\n\n address _destToken,\n\n ActionType _type,\n\n address[] memory _wrappers\n\n ) public returns (address, uint256) {\n\n\n\n uint256[] memory rates = new uint256[](_wrappers.length);\n\n for (uint i=0; i<_wrappers.length; i++) {\n\n rates[i] = getExpectedRate(_wrappers[i], _srcToken, _destToken, _amount, _type);\n\n }\n\n\n\n if (_type == ActionType.SELL) {\n\n return getBiggestRate(_wrappers, rates);\n\n } else {\n\n return getSmallestRate(_wrappers, rates);\n\n }\n\n }\n\n\n\n /// @notice Return the expected rate from the exchange wrapper\n\n /// @dev In case of Oasis/Uniswap handles the different precision tokens\n\n /// @param _wrapper Address of exchange wrapper\n\n /// @param _srcToken From token\n\n /// @param _destToken To token\n\n /// @param _amount Amount to be exchanged\n\n /// @param _type Type of action SELL|BUY\n\n function getExpectedRate(\n\n address _wrapper,\n\n address _srcToken,\n\n address _destToken,\n\n uint256 _amount,\n\n ActionType _type\n\n ) public returns (uint256) {\n\n bool success;\n\n bytes memory result;\n\n\n\n if (_type == ActionType.SELL) {\n\n (success, result) = _wrapper.call(abi.encodeWithSignature(\n\n \"getSellRate(address,address,uint256)\",\n\n _srcToken,\n\n _destToken,\n\n _amount\n\n ));\n\n\n\n } else {\n\n (success, result) = _wrapper.call(abi.encodeWithSignature(\n\n \"getBuyRate(address,address,uint256)\",\n\n _srcToken,\n\n _destToken,\n\n _amount\n\n ));\n\n }\n\n\n\n if (success) {\n\n return sliceUint(result, 0);\n\n }\n\n\n\n return 0;\n\n }\n\n\n\n /// @notice Finds the biggest rate between exchanges, needed for sell rate\n\n /// @param _wrappers Array of wrappers to compare\n\n /// @param _rates Array of rates to compare\n\n function getBiggestRate(\n\n address[] memory _wrappers,\n\n uint256[] memory _rates\n\n ) internal pure returns (address, uint) {\n\n uint256 maxIndex = 0;\n\n\n\n // starting from 0 in case there is only one rate in array\n\n for (uint256 i=0; i<_rates.length; i++) {\n\n if (_rates[i] > _rates[maxIndex]) {\n\n maxIndex = i;\n\n }\n\n }\n\n\n\n return (_wrappers[maxIndex], _rates[maxIndex]);\n\n }\n\n\n\n /// @notice Finds the smallest rate between exchanges, needed for buy rate\n\n /// @param _wrappers Array of wrappers to compare\n\n /// @param _rates Array of rates to compare\n\n function getSmallestRate(\n\n address[] memory _wrappers,\n\n uint256[] memory _rates\n\n ) internal pure returns (address, uint) {\n\n uint256 minIndex = 0;\n\n\n\n // starting from 0 in case there is only one rate in array\n\n for (uint256 i=0; i<_rates.length; i++) {\n\n if ((_rates[i] < _rates[minIndex] && _rates[i] > 0) || _rates[minIndex] == 0) {\n\n minIndex = i;\n\n }\n\n }\n\n\n\n return (_wrappers[minIndex], _rates[minIndex]);\n\n }\n\n\n\n function getDecimals(address _token) internal view returns (uint256) {\n\n if (_token == KYBER_ETH_ADDRESS) return 18;\n\n\n\n return ERC20(_token).decimals();\n\n }\n\n\n\n function sliceUint(bytes memory bs, uint256 start) internal pure returns (uint256) {\n\n require(bs.length >= start + 32, \"slicing out of range\");\n\n\n\n uint256 x;\n\n assembly {\n\n x := mload(add(bs, add(0x20, start)))\n\n }\n\n\n\n return x;\n\n }\n\n}\n\ncontract SaverExchangeHelper {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n address public constant KYBER_ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n address public constant WETH_ADDRESS = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;\n\n\n\n address payable public constant WALLET_ID = 0x322d58b9E75a6918f7e7849AEe0fF09369977e08;\n\n address public constant DISCOUNT_ADDRESS = 0x1b14E8D511c9A4395425314f849bD737BAF8208F;\n\n address public constant SAVER_EXCHANGE_REGISTRY = 0x25dd3F51e0C3c3Ff164DDC02A8E4D65Bb9cBB12D;\n\n\n\n address public constant ERC20_PROXY_0X = 0x95E6F48254609A6ee006F7D493c8e5fB97094ceF;\n\n address public constant ZRX_ALLOWLIST_ADDR = 0x4BA1f38427b33B8ab7Bb0490200dAE1F1C36823F;\n\n\n\n\n\n function getDecimals(address _token) internal view returns (uint256) {\n\n if (_token == KYBER_ETH_ADDRESS) return 18;\n\n\n\n return ERC20(_token).decimals();\n\n }\n\n\n\n function getBalance(address _tokenAddr) internal view returns (uint balance) {\n\n if (_tokenAddr == KYBER_ETH_ADDRESS) {\n\n balance = address(this).balance;\n\n } else {\n\n balance = ERC20(_tokenAddr).balanceOf(address(this));\n\n }\n\n }\n\n\n\n function approve0xProxy(address _tokenAddr, uint _amount) internal {\n\n if (_tokenAddr != KYBER_ETH_ADDRESS) {\n\n ERC20(_tokenAddr).safeApprove(address(ERC20_PROXY_0X), _amount);\n\n }\n\n }\n\n\n\n function sendLeftover(address _srcAddr, address _destAddr, address payable _to) internal {\n\n // send back any leftover ether or tokens\n\n if (address(this).balance > 0) {\n\n _to.transfer(address(this).balance);\n\n }\n\n\n\n if (getBalance(_srcAddr) > 0) {\n\n ERC20(_srcAddr).safeTransfer(_to, getBalance(_srcAddr));\n\n }\n\n\n\n if (getBalance(_destAddr) > 0) {\n\n ERC20(_destAddr).safeTransfer(_to, getBalance(_destAddr));\n\n }\n\n }\n\n\n\n function sliceUint(bytes memory bs, uint256 start) internal pure returns (uint256) {\n\n require(bs.length >= start + 32, \"slicing out of range\");\n\n\n\n uint256 x;\n\n assembly {\n\n x := mload(add(bs, add(0x20, start)))\n\n }\n\n\n\n return x;\n\n }\n\n}\n\ncontract SaverExchangeRegistry is AdminAuth {\n\n\n\n\tmapping(address => bool) private wrappers;\n\n\n\n\tconstructor() public {\n\n\t\twrappers[0x880A845A85F843a5c67DB2061623c6Fc3bB4c511] = true;\n\n\t\twrappers[0x4c9B55f2083629A1F7aDa257ae984E03096eCD25] = true;\n\n\t\twrappers[0x42A9237b872368E1bec4Ca8D26A928D7d39d338C] = true;\n\n\t}\n\n\n\n\tfunction addWrapper(address _wrapper) public onlyOwner {\n\n\t\twrappers[_wrapper] = true;\n\n\t}\n\n\n\n\tfunction removeWrapper(address _wrapper) public onlyOwner {\n\n\t\twrappers[_wrapper] = false;\n\n\t}\n\n\n\n\tfunction isWrapper(address _wrapper) public view returns(bool) {\n\n\t\treturn wrappers[_wrapper];\n\n\t}\n\n}\n\nabstract contract CEtherInterface {\n\n function mint() external virtual payable;\n\n function repayBorrow() external virtual payable;\n\n}\n\nabstract contract Cat {\n\n struct Ilk {\n\n address flip; // Liquidator\n\n uint256 chop; // Liquidation Penalty [ray]\n\n uint256 lump; // Liquidation Quantity [wad]\n\n }\n\n\n\n mapping (bytes32 => Ilk) public ilks;\n\n}\n\nabstract contract CompoundOracleInterface {\n\n function getUnderlyingPrice(address cToken) external view virtual returns (uint);\n\n}\n\nabstract contract ComptrollerInterface {\n\n function enterMarkets(address[] calldata cTokens) external virtual returns (uint256[] memory);\n\n\n\n function exitMarket(address cToken) external virtual returns (uint256);\n\n\n\n function getAssetsIn(address account) external virtual view returns (address[] memory);\n\n\n\n function markets(address account) public virtual view returns (bool, uint256);\n\n\n\n function getAccountLiquidity(address account) external virtual view returns (uint256, uint256, uint256);\n\n\n\n function claimComp(address holder) virtual public;\n\n\n\n function oracle() public virtual view returns (address);\n\n}\n\nabstract contract DSProxyInterface {\n\n\n\n /// Truffle wont compile if this isn't commented\n\n // function execute(bytes memory _code, bytes memory _data)\n\n // public virtual\n\n // payable\n\n // returns (address, bytes32);\n\n\n\n function execute(address _target, bytes memory _data) public virtual payable returns (bytes32);\n\n\n\n function setCache(address _cacheAddr) public virtual payable returns (bool);\n\n\n\n function owner() public virtual returns (address);\n\n}\n\nabstract contract GemLike {\n\n function approve(address, uint) public virtual;\n\n function transfer(address, uint) public virtual;\n\n function transferFrom(address, address, uint) public virtual;\n\n function deposit() public virtual payable;\n\n function withdraw(uint) public virtual;\n\n}\n\nabstract contract ManagerLike {\n\n function cdpCan(address, uint, address) public virtual view returns (uint);\n\n function ilks(uint) public virtual view returns (bytes32);\n\n function owns(uint) public virtual view returns (address);\n\n function urns(uint) public virtual view returns (address);\n\n function vat() public virtual view returns (address);\n\n function open(bytes32) public virtual returns (uint);\n\n function give(uint, address) public virtual;\n\n function cdpAllow(uint, address, uint) public virtual;\n\n function urnAllow(address, uint) public virtual;\n\n function frob(uint, int, int) public virtual;\n\n function frob(uint, address, int, int) public virtual;\n\n function flux(uint, address, uint) public virtual;\n\n function move(uint, address, uint) public virtual;\n\n function exit(address, uint, address, uint) public virtual;\n\n function quit(uint, address) public virtual;\n\n function enter(address, uint) public virtual;\n\n function shift(uint, uint) public virtual;\n\n}\n\nabstract contract VatLike {\n\n function can(address, address) public virtual view returns (uint);\n\n function ilks(bytes32) public virtual view returns (uint, uint, uint, uint, uint);\n\n function dai(address) public virtual view returns (uint);\n\n function urns(bytes32, address) public virtual view returns (uint, uint);\n\n function frob(bytes32, address, address, address, int, int) public virtual;\n\n function hope(address) public virtual;\n\n function move(address, address, uint) public virtual;\n\n}\n\nabstract contract GemJoinLike {\n\n function dec() public virtual returns (uint);\n\n function gem() public virtual returns (GemLike);\n\n function join(address, uint) public virtual payable;\n\n function exit(address, uint) public virtual;\n\n}\n\nabstract contract GNTJoinLike {\n\n function bags(address) public virtual view returns (address);\n\n function make(address) public virtual returns (address);\n\n}\n\nabstract contract DaiJoinLike {\n\n function vat() public virtual returns (VatLike);\n\n function dai() public virtual returns (GemLike);\n\n function join(address, uint) public virtual payable;\n\n function exit(address, uint) public virtual;\n\n}\n\nabstract contract HopeLike {\n\n function hope(address) public virtual;\n\n function nope(address) public virtual;\n\n}\n\nabstract contract EndLike {\n\n function fix(bytes32) public virtual view returns (uint);\n\n function cash(bytes32, uint) public virtual;\n\n function free(bytes32) public virtual;\n\n function pack(uint) public virtual;\n\n function skim(bytes32, address) public virtual;\n\n}\n\nabstract contract JugLike {\n\n function drip(bytes32) public virtual;\n\n}\n\nabstract contract PotLike {\n\n function chi() public virtual view returns (uint);\n\n function pie(address) public virtual view returns (uint);\n\n function drip() public virtual;\n\n function join(uint) public virtual;\n\n function exit(uint) public virtual;\n\n}\n\nabstract contract ProxyRegistryLike {\n\n function proxies(address) public virtual view returns (address);\n\n function build(address) public virtual returns (address);\n\n}\n\nabstract contract ProxyLike {\n\n function owner() public virtual view returns (address);\n\n}\n\nabstract contract DssProxyActions {\n\n function daiJoin_join(address apt, address urn, uint wad) public virtual;\n\n function transfer(address gem, address dst, uint wad) public virtual;\n\n function ethJoin_join(address apt, address urn) public virtual payable;\n\n function gemJoin_join(address apt, address urn, uint wad, bool transferFrom) public virtual payable;\n\n\n\n function hope(address obj, address usr) public virtual;\n\n function nope(address obj, address usr) public virtual;\n\n\n\n function open(address manager, bytes32 ilk, address usr) public virtual returns (uint cdp);\n\n function give(address manager, uint cdp, address usr) public virtual;\n\n function giveToProxy(address proxyRegistry, address manager, uint cdp, address dst) public virtual;\n\n\n\n function cdpAllow(address manager, uint cdp, address usr, uint ok) public virtual;\n\n function urnAllow(address manager, address usr, uint ok) public virtual;\n\n function flux(address manager, uint cdp, address dst, uint wad) public virtual;\n\n function move(address manager, uint cdp, address dst, uint rad) public virtual;\n\n function frob(address manager, uint cdp, int dink, int dart) public virtual;\n\n function frob(address manager, uint cdp, address dst, int dink, int dart) public virtual;\n\n function quit(address manager, uint cdp, address dst) public virtual;\n\n function enter(address manager, address src, uint cdp) public virtual;\n\n function shift(address manager, uint cdpSrc, uint cdpOrg) public virtual;\n\n function makeGemBag(address gemJoin) public virtual returns (address bag);\n\n\n\n function lockETH(address manager, address ethJoin, uint cdp) public virtual payable;\n\n function safeLockETH(address manager, address ethJoin, uint cdp, address owner) public virtual payable;\n\n function lockGem(address manager, address gemJoin, uint cdp, uint wad, bool transferFrom) public virtual;\n\n function safeLockGem(address manager, address gemJoin, uint cdp, uint wad, bool transferFrom, address owner) public virtual;\n\n function freeETH(address manager, address ethJoin, uint cdp, uint wad) public virtual;\n\n function freeGem(address manager, address gemJoin, uint cdp, uint wad) public virtual;\n\n function draw(address manager, address jug, address daiJoin, uint cdp, uint wad) public virtual;\n\n\n\n function wipe(address manager, address daiJoin, uint cdp, uint wad) public virtual;\n\n function safeWipe(address manager, address daiJoin, uint cdp, uint wad, address owner) public virtual;\n\n function wipeAll(address manager, address daiJoin, uint cdp) public virtual;\n\n function safeWipeAll(address manager, address daiJoin, uint cdp, address owner) public virtual;\n\n function lockETHAndDraw(address manager, address jug, address ethJoin, address daiJoin, uint cdp, uint wadD) public virtual payable;\n\n function openLockETHAndDraw(address manager, address jug, address ethJoin, address daiJoin, bytes32 ilk, uint wadD) public virtual payable returns (uint cdp);\n\n function lockGemAndDraw(address manager, address jug, address gemJoin, address daiJoin, uint cdp, uint wadC, uint wadD, bool transferFrom) public virtual;\n\n function openLockGemAndDraw(address manager, address jug, address gemJoin, address daiJoin, bytes32 ilk, uint wadC, uint wadD, bool transferFrom) public virtual returns (uint cdp);\n\n\n\n function openLockGNTAndDraw(address manager, address jug, address gntJoin, address daiJoin, bytes32 ilk, uint wadC, uint wadD) public virtual returns (address bag, uint cdp);\n\n function wipeAndFreeETH(address manager, address ethJoin, address daiJoin, uint cdp, uint wadC, uint wadD) public virtual;\n\n function wipeAllAndFreeETH(address manager, address ethJoin, address daiJoin, uint cdp, uint wadC) public virtual;\n\n function wipeAndFreeGem(address manager, address gemJoin, address daiJoin, uint cdp, uint wadC, uint wadD) public virtual;\n\n function wipeAllAndFreeGem(address manager, address gemJoin, address daiJoin, uint cdp, uint wadC) public virtual;\n\n}\n\nabstract contract DaiJoin {\n\n function vat() public virtual returns (Vat);\n\n function dai() public virtual returns (Gem);\n\n function join(address, uint) public virtual payable;\n\n function exit(address, uint) public virtual;\n\n}\n\nabstract contract DssProxyActionsDsr {\n\n function join(address daiJoin, address pot, uint wad) virtual public;\n\n function exit(address daiJoin, address pot, uint wad) virtual public;\n\n function exitAll(address daiJoin, address pot) virtual public;\n\n}\n\ninterface ERC20 {\n\n function totalSupply() external view returns (uint256 supply);\n\n\n\n function balanceOf(address _owner) external view returns (uint256 balance);\n\n\n\n function transfer(address _to, uint256 _value) external returns (bool success);\n\n\n\n function transferFrom(address _from, address _to, uint256 _value)\n\n external\n\n returns (bool success);\n\n\n\n function approve(address _spender, uint256 _value) external returns (bool success);\n\n\n\n function allowance(address _owner, address _spender) external view returns (uint256 remaining);\n\n\n\n function decimals() external view returns (uint256 digits);\n\n\n\n event Approval(address indexed _owner, address indexed _spender, uint256 _value);\n\n}\n\ninterface ExchangeInterface {\n\n function swapEtherToToken(uint256 _ethAmount, address _tokenAddress, uint256 _maxAmount)\n\n external\n\n payable\n\n returns (uint256, uint256);\n\n\n\n function swapTokenToEther(address _tokenAddress, uint256 _amount, uint256 _maxAmount)\n\n external\n\n returns (uint256);\n\n\n\n function swapTokenToToken(address _src, address _dest, uint256 _amount)\n\n external\n\n payable\n\n returns (uint256);\n\n\n\n function getExpectedRate(address src, address dest, uint256 srcQty)\n\n external\n\n view\n\n returns (uint256 expectedRate);\n\n}\n\ninterface ExchangeInterfaceV2 {\n\n function sell(address _srcAddr, address _destAddr, uint _srcAmount) external payable returns (uint);\n\n\n\n function buy(address _srcAddr, address _destAddr, uint _destAmount) external payable returns(uint);\n\n\n\n function getSellRate(address _srcAddr, address _destAddr, uint _srcAmount) external view returns (uint);\n\n\n\n function getBuyRate(address _srcAddr, address _destAddr, uint _srcAmount) external view returns (uint);\n\n}\n\nabstract contract Faucet {\n\n function gulp(address) public virtual;\n\n}\n\nabstract contract Flipper {\n\n function bids(uint _bidId) public virtual returns (uint256, uint256, address, uint48, uint48, address, address, uint256);\n\n function tend(uint id, uint lot, uint bid) virtual external;\n\n function dent(uint id, uint lot, uint bid) virtual external;\n\n function deal(uint id) virtual external;\n\n}\n\nabstract contract GasTokenInterface is ERC20 {\n\n function free(uint256 value) public virtual returns (bool success);\n\n\n\n function freeUpTo(uint256 value) public virtual returns (uint256 freed);\n\n\n\n function freeFrom(address from, uint256 value) public virtual returns (bool success);\n\n\n\n function freeFromUpTo(address from, uint256 value) public virtual returns (uint256 freed);\n\n}\n\nabstract contract Gem {\n\n function dec() virtual public returns (uint);\n\n function gem() virtual public returns (Gem);\n\n function join(address, uint) virtual public payable;\n\n function exit(address, uint) virtual public;\n\n\n\n function approve(address, uint) virtual public;\n\n function transfer(address, uint) virtual public returns (bool);\n\n function transferFrom(address, address, uint) virtual public returns (bool);\n\n function deposit() virtual public payable;\n\n function withdraw(uint) virtual public;\n\n function allowance(address, address) virtual public returns (uint);\n\n}\n\nabstract contract GetCdps {\n\n function getCdpsAsc(address manager, address guy) external view virtual returns (uint[] memory ids, address[] memory urns, bytes32[] memory ilks);\n\n function getCdpsDesc(address manager, address guy) external view virtual returns (uint[] memory ids, address[] memory urns, bytes32[] memory ilks);\n\n}\n\nabstract contract IAToken {\n\n function redeem(uint256 _amount) external virtual;\n\n}\n\nabstract contract IAaveSubscription {\n\n function subscribe(uint128 _minRatio, uint128 _maxRatio, uint128 _optimalBoost, uint128 _optimalRepay, bool _boostEnabled) public virtual;\n\n function unsubscribe() public virtual;\n\n}\n\nabstract contract ICompoundSubscription {\n\n function subscribe(uint128 _minRatio, uint128 _maxRatio, uint128 _optimalBoost, uint128 _optimalRepay, bool _boostEnabled) public virtual;\n\n function unsubscribe() public virtual;\n\n}\n\nabstract contract ILendingPool {\n\n function flashLoan( address payable _receiver, address _reserve, uint _amount, bytes calldata _params) external virtual;\n\n function deposit(address _reserve, uint256 _amount, uint16 _referralCode) external virtual payable;\n\n\tfunction setUserUseReserveAsCollateral(address _reserve, bool _useAsCollateral) external virtual;\n\n\tfunction borrow(address _reserve, uint256 _amount, uint256 _interestRateMode, uint16 _referralCode) external virtual;\n\n\tfunction repay( address _reserve, uint256 _amount, address payable _onBehalfOf) external virtual payable;\n\n\tfunction swapBorrowRateMode(address _reserve) external virtual;\n\n function getReserves() external virtual view returns(address[] memory);\n\n\n\n /// @param _reserve underlying token address\n\n function getReserveData(address _reserve)\n\n external virtual\n\n view\n\n returns (\n\n uint256 totalLiquidity, // reserve total liquidity\n\n uint256 availableLiquidity, // reserve available liquidity for borrowing\n\n uint256 totalBorrowsStable, // total amount of outstanding borrows at Stable rate\n\n uint256 totalBorrowsVariable, // total amount of outstanding borrows at Variable rate\n\n uint256 liquidityRate, // current deposit APY of the reserve for depositors, in Ray units.\n\n uint256 variableBorrowRate, // current variable rate APY of the reserve pool, in Ray units.\n\n uint256 stableBorrowRate, // current stable rate APY of the reserve pool, in Ray units.\n\n uint256 averageStableBorrowRate, // current average stable borrow rate\n\n uint256 utilizationRate, // expressed as total borrows/total liquidity.\n\n uint256 liquidityIndex, // cumulative liquidity index\n\n uint256 variableBorrowIndex, // cumulative variable borrow index\n\n address aTokenAddress, // aTokens contract address for the specific _reserve\n\n uint40 lastUpdateTimestamp // timestamp of the last update of reserve data\n\n );\n\n\n\n /// @param _user users address\n\n function getUserAccountData(address _user)\n\n external virtual\n\n view\n\n returns (\n\n uint256 totalLiquidityETH, // user aggregated deposits across all the reserves. In Wei\n\n uint256 totalCollateralETH, // user aggregated collateral across all the reserves. In Wei\n\n uint256 totalBorrowsETH, // user aggregated outstanding borrows across all the reserves. In Wei\n\n uint256 totalFeesETH, // user aggregated current outstanding fees in ETH. In Wei\n\n uint256 availableBorrowsETH, // user available amount to borrow in ETH\n\n uint256 currentLiquidationThreshold, // user current average liquidation threshold across all the collaterals deposited\n\n uint256 ltv, // user average Loan-to-Value between all the collaterals\n\n uint256 healthFactor // user current Health Factor\n\n ); \n\n\n\n /// @param _reserve underlying token address\n\n /// @param _user users address\n\n function getUserReserveData(address _reserve, address _user)\n\n external virtual\n\n view\n\n returns (\n\n uint256 currentATokenBalance, // user current reserve aToken balance\n\n uint256 currentBorrowBalance, // user current reserve outstanding borrow balance\n\n uint256 principalBorrowBalance, // user balance of borrowed asset\n\n uint256 borrowRateMode, // user borrow rate mode either Stable or Variable\n\n uint256 borrowRate, // user current borrow rate APY\n\n uint256 liquidityRate, // user current earn rate on _reserve\n\n uint256 originationFee, // user outstanding loan origination fee\n\n uint256 variableBorrowIndex, // user variable cumulative index\n\n uint256 lastUpdateTimestamp, // Timestamp of the last data update\n\n bool usageAsCollateralEnabled // Whether the user's current reserve is enabled as a collateral\n\n );\n\n\n\n function getReserveConfigurationData(address _reserve)\n\n external virtual\n\n view\n\n returns (\n\n uint256 ltv,\n\n uint256 liquidationThreshold,\n\n uint256 liquidationBonus,\n\n address rateStrategyAddress,\n\n bool usageAsCollateralEnabled,\n\n bool borrowingEnabled,\n\n bool stableBorrowRateEnabled,\n\n bool isActive\n\n );\n\n\n\n // ------------------ LendingPoolCoreData ------------------------\n\n function getReserveATokenAddress(address _reserve) public virtual view returns (address);\n\n function getReserveConfiguration(address _reserve)\n\n external virtual\n\n view\n\n returns (uint256, uint256, uint256, bool);\n\n function getUserUnderlyingAssetBalance(address _reserve, address _user)\n\n public virtual\n\n view\n\n returns (uint256);\n\n\n\n function getReserveCurrentLiquidityRate(address _reserve)\n\n public virtual\n\n view\n\n returns (uint256);\n\n function getReserveCurrentVariableBorrowRate(address _reserve)\n\n public virtual\n\n view\n\n returns (uint256);\n\n function getReserveTotalLiquidity(address _reserve)\n\n public virtual\n\n view\n\n returns (uint256);\n\n function getReserveAvailableLiquidity(address _reserve)\n\n public virtual\n\n view\n\n returns (uint256);\n\n function getReserveTotalBorrowsVariable(address _reserve)\n\n public virtual\n\n view\n\n returns (uint256);\n\n\n\n // ---------------- LendingPoolDataProvider ---------------------\n\n function calculateUserGlobalData(address _user)\n\n public virtual\n\n view\n\n returns (\n\n uint256 totalLiquidityBalanceETH,\n\n uint256 totalCollateralBalanceETH,\n\n uint256 totalBorrowBalanceETH,\n\n uint256 totalFeesETH,\n\n uint256 currentLtv,\n\n uint256 currentLiquidationThreshold,\n\n uint256 healthFactor,\n\n bool healthFactorBelowThreshold\n\n );\n\n}\n\nabstract contract ILendingPoolAddressesProvider {\n\n\n\n function getLendingPool() public virtual view returns (address);\n\n function getLendingPoolCore() public virtual view returns (address payable);\n\n function getLendingPoolConfigurator() public virtual view returns (address);\n\n function getLendingPoolDataProvider() public virtual view returns (address);\n\n function getLendingPoolParametersProvider() public virtual view returns (address);\n\n function getTokenDistributor() public virtual view returns (address);\n\n function getFeeProvider() public virtual view returns (address);\n\n function getLendingPoolLiquidationManager() public virtual view returns (address);\n\n function getLendingPoolManager() public virtual view returns (address);\n\n function getPriceOracle() public virtual view returns (address);\n\n function getLendingRateOracle() public virtual view returns (address);\n\n}\n\nabstract contract ILoanShifter {\n\n function getLoanAmount(uint, address) public view virtual returns(uint);\n\n function getUnderlyingAsset(address _addr) public view virtual returns (address);\n\n}\n\nabstract contract IPriceOracleGetterAave {\n\n function getAssetPrice(address _asset) external virtual view returns (uint256);\n\n function getAssetsPrices(address[] calldata _assets) external virtual view returns(uint256[] memory);\n\n function getSourceOfAsset(address _asset) external virtual view returns(address);\n\n function getFallbackOracle() external virtual view returns(address);\n\n}\n\nabstract contract ITokenInterface is ERC20 {\n\n function assetBalanceOf(address _owner) public virtual view returns (uint256);\n\n\n\n function mint(address receiver, uint256 depositAmount) external virtual returns (uint256 mintAmount);\n\n\n\n function burn(address receiver, uint256 burnAmount) external virtual returns (uint256 loanAmountPaid);\n\n\n\n function tokenPrice() public virtual view returns (uint256 price);\n\n}\n\nabstract contract Join {\n\n bytes32 public ilk;\n\n\n\n function dec() virtual public view returns (uint);\n\n function gem() virtual public view returns (Gem);\n\n function join(address, uint) virtual public payable;\n\n function exit(address, uint) virtual public;\n\n}\n\nabstract contract Jug {\n\n struct Ilk {\n\n uint256 duty;\n\n uint256 rho;\n\n }\n\n\n\n mapping (bytes32 => Ilk) public ilks;\n\n\n\n function drip(bytes32) public virtual returns (uint);\n\n}\n\nabstract contract KyberNetworkProxyInterface {\n\n function maxGasPrice() external virtual view returns (uint256);\n\n\n\n function getUserCapInWei(address user) external virtual view returns (uint256);\n\n\n\n function getUserCapInTokenWei(address user, ERC20 token) external virtual view returns (uint256);\n\n\n\n function enabled() external virtual view returns (bool);\n\n\n\n function info(bytes32 id) external virtual view returns (uint256);\n\n\n\n function getExpectedRate(ERC20 src, ERC20 dest, uint256 srcQty)\n\n public virtual\n\n view\n\n returns (uint256 expectedRate, uint256 slippageRate);\n\n\n\n function tradeWithHint(\n\n ERC20 src,\n\n uint256 srcAmount,\n\n ERC20 dest,\n\n address destAddress,\n\n uint256 maxDestAmount,\n\n uint256 minConversionRate,\n\n address walletId,\n\n bytes memory hint\n\n ) public virtual payable returns (uint256);\n\n\n\n function trade(\n\n ERC20 src,\n\n uint256 srcAmount,\n\n ERC20 dest,\n\n address destAddress,\n\n uint256 maxDestAmount,\n\n uint256 minConversionRate,\n\n address walletId\n\n ) public virtual payable returns (uint256);\n\n\n\n function swapEtherToToken(ERC20 token, uint256 minConversionRate)\n\n external virtual\n\n payable\n\n returns (uint256);\n\n\n\n function swapTokenToEther(ERC20 token, uint256 tokenQty, uint256 minRate)\n\n external virtual\n\n payable\n\n returns (uint256);\n\n\n\n function swapTokenToToken(ERC20 src, uint256 srcAmount, ERC20 dest, uint256 minConversionRate)\n\n public virtual\n\n returns (uint256);\n\n}\n\nabstract contract Manager {\n\n function last(address) virtual public returns (uint);\n\n function cdpCan(address, uint, address) virtual public view returns (uint);\n\n function ilks(uint) virtual public view returns (bytes32);\n\n function owns(uint) virtual public view returns (address);\n\n function urns(uint) virtual public view returns (address);\n\n function vat() virtual public view returns (address);\n\n function open(bytes32, address) virtual public returns (uint);\n\n function give(uint, address) virtual public;\n\n function cdpAllow(uint, address, uint) virtual public;\n\n function urnAllow(address, uint) virtual public;\n\n function frob(uint, int, int) virtual public;\n\n function flux(uint, address, uint) virtual public;\n\n function move(uint, address, uint) virtual public;\n\n function exit(address, uint, address, uint) virtual public;\n\n function quit(uint, address) virtual public;\n\n function enter(address, uint) virtual public;\n\n function shift(uint, uint) virtual public;\n\n}\n\nabstract contract OasisInterface {\n\n function getBuyAmount(address tokenToBuy, address tokenToPay, uint256 amountToPay)\n\n external\n\n virtual\n\n view\n\n returns (uint256 amountBought);\n\n\n\n function getPayAmount(address tokenToPay, address tokenToBuy, uint256 amountToBuy)\n\n public virtual\n\n view\n\n returns (uint256 amountPaid);\n\n\n\n function sellAllAmount(address pay_gem, uint256 pay_amt, address buy_gem, uint256 min_fill_amount)\n\n public virtual\n\n returns (uint256 fill_amt);\n\n\n\n function buyAllAmount(address buy_gem, uint256 buy_amt, address pay_gem, uint256 max_fill_amount)\n\n public virtual\n\n returns (uint256 fill_amt);\n\n}\n\nabstract contract Osm {\n\n mapping(address => uint256) public bud;\n\n\n\n function peep() external view virtual returns (bytes32, bool);\n\n}\n\nabstract contract OsmMom {\n\n mapping (bytes32 => address) public osms;\n\n}\n\nabstract contract OtcInterface {\n\n function buyAllAmount(address, uint256, address, uint256) public virtual returns (uint256);\n\n\n\n function getPayAmount(address, address, uint256) public virtual view returns (uint256);\n\n\n\n function getBuyAmount(address, address, uint256) public virtual view returns (uint256);\n\n}\n\nabstract contract PipInterface {\n\n function read() public virtual returns (bytes32);\n\n}\n\nabstract contract ProxyRegistryInterface {\n\n function proxies(address _owner) public virtual view returns (address);\n\n function build(address) public virtual returns (address);\n\n}\n\nabstract contract SaverExchangeInterface {\n\n function getBestPrice(\n\n uint256 _amount,\n\n address _srcToken,\n\n address _destToken,\n\n uint256 _exchangeType\n\n ) public view virtual returns (address, uint256);\n\n}\n\nabstract contract Spotter {\n\n struct Ilk {\n\n PipInterface pip;\n\n uint256 mat;\n\n }\n\n\n\n mapping (bytes32 => Ilk) public ilks;\n\n\n\n uint256 public par;\n\n\n\n}\n\nabstract contract TokenInterface {\n\n function allowance(address, address) public virtual returns (uint256);\n\n\n\n function balanceOf(address) public virtual returns (uint256);\n\n\n\n function approve(address, uint256) public virtual;\n\n\n\n function transfer(address, uint256) public virtual returns (bool);\n\n\n\n function transferFrom(address, address, uint256) public virtual returns (bool);\n\n\n\n function deposit() public virtual payable;\n\n\n\n function withdraw(uint256) public virtual;\n\n}\n\nabstract contract UniswapExchangeInterface {\n\n function getEthToTokenInputPrice(uint256 eth_sold)\n\n external virtual\n\n view\n\n returns (uint256 tokens_bought);\n\n\n\n function getEthToTokenOutputPrice(uint256 tokens_bought)\n\n external virtual\n\n view\n\n returns (uint256 eth_sold);\n\n\n\n function getTokenToEthInputPrice(uint256 tokens_sold)\n\n external virtual\n\n view\n\n returns (uint256 eth_bought);\n\n\n\n function getTokenToEthOutputPrice(uint256 eth_bought)\n\n external virtual\n\n view\n\n returns (uint256 tokens_sold);\n\n\n\n function tokenToEthTransferInput(\n\n uint256 tokens_sold,\n\n uint256 min_eth,\n\n uint256 deadline,\n\n address recipient\n\n ) external virtual returns (uint256 eth_bought);\n\n\n\n function ethToTokenTransferInput(uint256 min_tokens, uint256 deadline, address recipient)\n\n external virtual\n\n payable\n\n returns (uint256 tokens_bought);\n\n\n\n function tokenToTokenTransferInput(\n\n uint256 tokens_sold,\n\n uint256 min_tokens_bought,\n\n uint256 min_eth_bought,\n\n uint256 deadline,\n\n address recipient,\n\n address token_addr\n\n ) external virtual returns (uint256 tokens_bought);\n\n\n\n function ethToTokenTransferOutput(\n\n uint256 tokens_bought,\n\n uint256 deadline,\n\n address recipient\n\n ) external virtual payable returns (uint256 eth_sold);\n\n\n\n function tokenToEthTransferOutput(\n\n uint256 eth_bought,\n\n uint256 max_tokens,\n\n uint256 deadline,\n\n address recipient\n\n ) external virtual returns (uint256 tokens_sold);\n\n\n\n function tokenToTokenTransferOutput(\n\n uint256 tokens_bought,\n\n uint256 max_tokens_sold,\n\n uint256 max_eth_sold,\n\n uint256 deadline,\n\n address recipient,\n\n address token_addr\n\n ) external virtual returns (uint256 tokens_sold);\n\n\n\n}\n\nabstract contract UniswapFactoryInterface {\n\n function getExchange(address token) external view virtual returns (address exchange);\n\n}\n\nabstract contract UniswapRouterInterface {\n\n function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)\n\n external\n\n virtual\n\n returns (uint[] memory amounts);\n\n\n\n function swapExactTokensForTokens(\n\n uint amountIn,\n\n uint amountOutMin,\n\n address[] calldata path,\n\n address to,\n\n uint deadline\n\n ) external virtual returns (uint[] memory amounts);\n\n\n\n function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)\n\n external virtual\n\n returns (uint[] memory amounts);\n\n\n\n function swapTokensForExactTokens(\n\n uint amountOut,\n\n uint amountInMax,\n\n address[] calldata path,\n\n address to,\n\n uint deadline\n\n ) external virtual returns (uint[] memory amounts);\n\n\n\n function getAmountsOut(uint amountIn, address[] memory path) public virtual view returns (uint[] memory amounts);\n\n\n\n function getAmountsIn(uint amountOut, address[] memory path) public virtual view returns (uint[] memory amounts);\n\n}\n\nabstract contract Vat {\n\n\n\n struct Urn {\n\n uint256 ink; // Locked Collateral [wad]\n\n uint256 art; // Normalised Debt [wad]\n\n }\n\n\n\n struct Ilk {\n\n uint256 Art; // Total Normalised Debt [wad]\n\n uint256 rate; // Accumulated Rates [ray]\n\n uint256 spot; // Price with Safety Margin [ray]\n\n uint256 line; // Debt Ceiling [rad]\n\n uint256 dust; // Urn Debt Floor [rad]\n\n }\n\n\n\n mapping (bytes32 => mapping (address => Urn )) public urns;\n\n mapping (bytes32 => Ilk) public ilks;\n\n mapping (bytes32 => mapping (address => uint)) public gem; // [wad]\n\n\n\n function can(address, address) virtual public view returns (uint);\n\n function dai(address) virtual public view returns (uint);\n\n function frob(bytes32, address, address, address, int, int) virtual public;\n\n function hope(address) virtual public;\n\n function move(address, address, uint) virtual public;\n\n function fork(bytes32, address, address, int, int) virtual public;\n\n}\n\ncontract DefisaverLogger {\n\n event LogEvent(\n\n address indexed contractAddress,\n\n address indexed caller,\n\n string indexed logName,\n\n bytes data\n\n );\n\n\n\n // solhint-disable-next-line func-name-mixedcase\n\n function Log(address _contract, address _caller, string memory _logName, bytes memory _data)\n\n public\n\n {\n\n emit LogEvent(_contract, _caller, _logName, _data);\n\n }\n\n}\n\ncontract MCDMonitorProxyV2 is AdminAuth {\n\n\n\n uint public CHANGE_PERIOD;\n\n address public monitor;\n\n address public newMonitor;\n\n address public lastMonitor;\n\n uint public changeRequestedTimestamp;\n\n\n\n mapping(address => bool) public allowed;\n\n\n\n event MonitorChangeInitiated(address oldMonitor, address newMonitor);\n\n event MonitorChangeCanceled();\n\n event MonitorChangeFinished(address monitor);\n\n event MonitorChangeReverted(address monitor);\n\n\n\n // if someone who is allowed become malicious, owner can't be changed\n\n modifier onlyAllowed() {\n\n require(allowed[msg.sender] || msg.sender == owner);\n\n _;\n\n }\n\n\n\n modifier onlyMonitor() {\n\n require (msg.sender == monitor);\n\n _;\n\n }\n\n\n\n constructor(uint _changePeriod) public {\n\n CHANGE_PERIOD = _changePeriod * 1 days;\n\n }\n\n\n\n /// @notice Only monitor contract is able to call execute on users proxy\n\n /// @param _owner Address of cdp owner (users DSProxy address)\n\n /// @param _saverProxy Address of MCDSaverProxy\n\n /// @param _data Data to send to MCDSaverProxy\n\n function callExecute(address _owner, address _saverProxy, bytes memory _data) public payable onlyMonitor {\n\n // execute reverts if calling specific method fails\n\n DSProxyInterface(_owner).execute{value: msg.value}(_saverProxy, _data);\n\n\n\n // return if anything left\n\n if (address(this).balance > 0) {\n\n msg.sender.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n /// @notice Allowed users are able to set Monitor contract without any waiting period first time\n\n /// @param _monitor Address of Monitor contract\n\n function setMonitor(address _monitor) public onlyAllowed {\n\n require(monitor == address(0));\n\n monitor = _monitor;\n\n }\n\n\n\n /// @notice Allowed users are able to start procedure for changing monitor\n\n /// @dev after CHANGE_PERIOD needs to call confirmNewMonitor to actually make a change\n\n /// @param _newMonitor address of new monitor\n\n function changeMonitor(address _newMonitor) public onlyAllowed {\n\n require(changeRequestedTimestamp == 0);\n\n\n\n changeRequestedTimestamp = now;\n\n lastMonitor = monitor;\n\n newMonitor = _newMonitor;\n\n\n\n emit MonitorChangeInitiated(lastMonitor, newMonitor);\n\n }\n\n\n\n /// @notice At any point allowed users are able to cancel monitor change\n\n function cancelMonitorChange() public onlyAllowed {\n\n require(changeRequestedTimestamp > 0);\n\n\n\n changeRequestedTimestamp = 0;\n\n newMonitor = address(0);\n\n\n\n emit MonitorChangeCanceled();\n\n }\n\n\n\n /// @notice Anyone is able to confirm new monitor after CHANGE_PERIOD if process is started\n\n function confirmNewMonitor() public onlyAllowed {\n\n require((changeRequestedTimestamp + CHANGE_PERIOD) < now);\n\n require(changeRequestedTimestamp != 0);\n\n require(newMonitor != address(0));\n\n\n\n monitor = newMonitor;\n\n newMonitor = address(0);\n\n changeRequestedTimestamp = 0;\n\n\n\n emit MonitorChangeFinished(monitor);\n\n }\n\n\n\n /// @notice Its possible to revert monitor to last used monitor\n\n function revertMonitor() public onlyAllowed {\n\n require(lastMonitor != address(0));\n\n\n\n monitor = lastMonitor;\n\n\n\n emit MonitorChangeReverted(monitor);\n\n }\n\n\n\n\n\n /// @notice Allowed users are able to add new allowed user\n\n /// @param _user Address of user that will be allowed\n\n function addAllowed(address _user) public onlyAllowed {\n\n allowed[_user] = true;\n\n }\n\n\n\n /// @notice Allowed users are able to remove allowed user\n\n /// @dev owner is always allowed even if someone tries to remove it from allowed mapping\n\n /// @param _user Address of allowed user\n\n function removeAllowed(address _user) public onlyAllowed {\n\n allowed[_user] = false;\n\n }\n\n\n\n function setChangePeriod(uint _periodInDays) public onlyAllowed {\n\n require(_periodInDays * 1 days > CHANGE_PERIOD);\n\n\n\n CHANGE_PERIOD = _periodInDays * 1 days;\n\n }\n\n\n\n}\n\ncontract MCDPriceVerifier is AdminAuth {\n\n\n\n OsmMom public osmMom = OsmMom(0x76416A4d5190d071bfed309861527431304aA14f);\n\n Manager public manager = Manager(0x5ef30b9986345249bc32d8928B7ee64DE9435E39);\n\n\n\n mapping(address => bool) public authorized;\n\n\n\n function verifyVaultNextPrice(uint _nextPrice, uint _cdpId) public view returns(bool) {\n\n require(authorized[msg.sender]);\n\n\n\n bytes32 ilk = manager.ilks(_cdpId);\n\n\n\n return verifyNextPrice(_nextPrice, ilk);\n\n }\n\n\n\n function verifyNextPrice(uint _nextPrice, bytes32 _ilk) public view returns(bool) {\n\n require(authorized[msg.sender]);\n\n\n\n address osmAddress = osmMom.osms(_ilk);\n\n\n\n uint whitelisted = Osm(osmAddress).bud(address(this));\n\n // If contracts doesn't have access return true\n\n if (whitelisted != 1) return true;\n\n\n\n (bytes32 price, bool has) = Osm(osmAddress).peep();\n\n\n\n return has ? uint(price) == _nextPrice : false;\n\n }\n\n\n\n function setAuthorized(address _address, bool _allowed) public onlyOwner {\n\n authorized[_address] = _allowed;\n\n }\n\n}\n\nabstract contract StaticV2 {\n\n\n\n enum Method { Boost, Repay }\n\n\n\n struct CdpHolder {\n\n uint128 minRatio;\n\n uint128 maxRatio;\n\n uint128 optimalRatioBoost;\n\n uint128 optimalRatioRepay;\n\n address owner;\n\n uint cdpId;\n\n bool boostEnabled;\n\n bool nextPriceEnabled;\n\n }\n\n\n\n struct SubPosition {\n\n uint arrPos;\n\n bool subscribed;\n\n }\n\n}\n\ncontract SubscriptionsInterfaceV2 {\n\n function subscribe(uint _cdpId, uint128 _minRatio, uint128 _maxRatio, uint128 _optimalBoost, uint128 _optimalRepay, bool _boostEnabled, bool _nextPriceEnabled) external {}\n\n function unsubscribe(uint _cdpId) external {}\n\n}\n\ncontract SubscriptionsProxyV2 {\n\n\n\n address public constant MONITOR_PROXY_ADDRESS = 0x7456f4218874eAe1aF8B83a64848A1B89fEB7d7C;\n\n address public constant OLD_SUBSCRIPTION = 0x83152CAA0d344a2Fd428769529e2d490A88f4393;\n\n address public constant FACTORY_ADDRESS = 0x5a15566417e6C1c9546523066500bDDBc53F88C7;\n\n\n\n function migrate(uint _cdpId, uint128 _minRatio, uint128 _maxRatio, uint128 _optimalRatioBoost, uint128 _optimalRatioRepay, bool _boostEnabled, bool _nextPriceEnabled, address _subscriptions) public {\n\n SubscriptionsInterfaceV2(OLD_SUBSCRIPTION).unsubscribe(_cdpId);\n\n\n\n subscribe(_cdpId, _minRatio, _maxRatio, _optimalRatioBoost, _optimalRatioRepay, _boostEnabled, _nextPriceEnabled, _subscriptions);\n\n }\n\n\n\n function subscribe(uint _cdpId, uint128 _minRatio, uint128 _maxRatio, uint128 _optimalRatioBoost, uint128 _optimalRatioRepay, bool _boostEnabled, bool _nextPriceEnabled, address _subscriptions) public {\n\n\n\n address currAuthority = address(DSAuth(address(this)).authority());\n\n DSGuard guard = DSGuard(currAuthority);\n\n\n\n if (currAuthority == address(0)) {\n\n guard = DSGuardFactory(FACTORY_ADDRESS).newGuard();\n\n DSAuth(address(this)).setAuthority(DSAuthority(address(guard)));\n\n }\n\n\n\n guard.permit(MONITOR_PROXY_ADDRESS, address(this), bytes4(keccak256(\"execute(address,bytes)\")));\n\n\n\n SubscriptionsInterfaceV2(_subscriptions).subscribe(_cdpId, _minRatio, _maxRatio, _optimalRatioBoost, _optimalRatioRepay, _boostEnabled, _nextPriceEnabled);\n\n }\n\n\n\n function update(uint _cdpId, uint128 _minRatio, uint128 _maxRatio, uint128 _optimalRatioBoost, uint128 _optimalRatioRepay, bool _boostEnabled, bool _nextPriceEnabled, address _subscriptions) public {\n\n SubscriptionsInterfaceV2(_subscriptions).subscribe(_cdpId, _minRatio, _maxRatio, _optimalRatioBoost, _optimalRatioRepay, _boostEnabled, _nextPriceEnabled);\n\n }\n\n\n\n function unsubscribe(uint _cdpId, address _subscriptions) public {\n\n SubscriptionsInterfaceV2(_subscriptions).unsubscribe(_cdpId);\n\n }\n\n}\n\ncontract SubscriptionsV2 is AdminAuth, StaticV2 {\n\n\n\n bytes32 internal constant ETH_ILK = 0x4554482d41000000000000000000000000000000000000000000000000000000;\n\n bytes32 internal constant BAT_ILK = 0x4241542d41000000000000000000000000000000000000000000000000000000;\n\n\n\n address public constant MANAGER_ADDRESS = 0x5ef30b9986345249bc32d8928B7ee64DE9435E39;\n\n address public constant VAT_ADDRESS = 0x35D1b3F3D7966A1DFe207aa4514C12a259A0492B;\n\n address public constant SPOTTER_ADDRESS = 0x65C79fcB50Ca1594B025960e539eD7A9a6D434A3;\n\n\n\n CdpHolder[] public subscribers;\n\n mapping (uint => SubPosition) public subscribersPos;\n\n\n\n mapping (bytes32 => uint) public minLimits;\n\n\n\n uint public changeIndex;\n\n\n\n Manager public manager = Manager(MANAGER_ADDRESS);\n\n Vat public vat = Vat(VAT_ADDRESS);\n\n Spotter public spotter = Spotter(SPOTTER_ADDRESS);\n\n MCDSaverProxy public saverProxy;\n\n\n\n event Subscribed(address indexed owner, uint cdpId);\n\n event Unsubscribed(address indexed owner, uint cdpId);\n\n event Updated(address indexed owner, uint cdpId);\n\n event ParamUpdates(address indexed owner, uint cdpId, uint128, uint128, uint128, uint128, bool boostEnabled);\n\n\n\n /// @param _saverProxy Address of the MCDSaverProxy contract\n\n constructor(address _saverProxy) public {\n\n saverProxy = MCDSaverProxy(payable(_saverProxy));\n\n\n\n minLimits[ETH_ILK] = 1700000000000000000;\n\n minLimits[BAT_ILK] = 1700000000000000000;\n\n }\n\n\n\n /// @dev Called by the DSProxy contract which owns the CDP\n\n /// @notice Adds the users CDP in the list of subscriptions so it can be monitored\n\n /// @param _cdpId Id of the CDP\n\n /// @param _minRatio Minimum ratio below which repay is triggered\n\n /// @param _maxRatio Maximum ratio after which boost is triggered\n\n /// @param _optimalBoost Ratio amount which boost should target\n\n /// @param _optimalRepay Ratio amount which repay should target\n\n /// @param _boostEnabled Boolean determing if boost is enabled\n\n /// @param _nextPriceEnabled Boolean determing if we can use nextPrice for this cdp\n\n function subscribe(uint _cdpId, uint128 _minRatio, uint128 _maxRatio, uint128 _optimalBoost, uint128 _optimalRepay, bool _boostEnabled, bool _nextPriceEnabled) external {\n\n require(isOwner(msg.sender, _cdpId), \"Must be called by Cdp owner\");\n\n\n\n // if boost is not enabled, set max ratio to max uint\n\n uint128 localMaxRatio = _boostEnabled ? _maxRatio : uint128(-1);\n\n require(checkParams(manager.ilks(_cdpId), _minRatio, localMaxRatio), \"Must be correct params\");\n\n\n\n SubPosition storage subInfo = subscribersPos[_cdpId];\n\n\n\n CdpHolder memory subscription = CdpHolder({\n\n minRatio: _minRatio,\n\n maxRatio: localMaxRatio,\n\n optimalRatioBoost: _optimalBoost,\n\n optimalRatioRepay: _optimalRepay,\n\n owner: msg.sender,\n\n cdpId: _cdpId,\n\n boostEnabled: _boostEnabled,\n\n nextPriceEnabled: _nextPriceEnabled\n\n });\n\n\n\n changeIndex++;\n\n\n\n if (subInfo.subscribed) {\n\n subscribers[subInfo.arrPos] = subscription;\n\n\n\n emit Updated(msg.sender, _cdpId);\n\n emit ParamUpdates(msg.sender, _cdpId, _minRatio, localMaxRatio, _optimalBoost, _optimalRepay, _boostEnabled);\n\n } else {\n\n subscribers.push(subscription);\n\n\n\n subInfo.arrPos = subscribers.length - 1;\n\n subInfo.subscribed = true;\n\n\n\n emit Subscribed(msg.sender, _cdpId);\n\n }\n\n }\n\n\n\n /// @notice Called by the users DSProxy\n\n /// @dev Owner who subscribed cancels his subscription\n\n function unsubscribe(uint _cdpId) external {\n\n require(isOwner(msg.sender, _cdpId), \"Must be called by Cdp owner\");\n\n\n\n _unsubscribe(_cdpId);\n\n }\n\n\n\n /// @dev Checks if the _owner is the owner of the CDP\n\n function isOwner(address _owner, uint _cdpId) internal view returns (bool) {\n\n return getOwner(_cdpId) == _owner;\n\n }\n\n\n\n /// @dev Checks limit for minimum ratio and if minRatio is bigger than max\n\n function checkParams(bytes32 _ilk, uint128 _minRatio, uint128 _maxRatio) internal view returns (bool) {\n\n if (_minRatio < minLimits[_ilk]) {\n\n return false;\n\n }\n\n\n\n if (_minRatio > _maxRatio) {\n\n return false;\n\n }\n\n\n\n return true;\n\n }\n\n\n\n /// @dev Internal method to remove a subscriber from the list\n\n function _unsubscribe(uint _cdpId) internal {\n\n require(subscribers.length > 0, \"Must have subscribers in the list\");\n\n\n\n SubPosition storage subInfo = subscribersPos[_cdpId];\n\n\n\n require(subInfo.subscribed, \"Must first be subscribed\");\n\n\n\n uint lastCdpId = subscribers[subscribers.length - 1].cdpId;\n\n\n\n SubPosition storage subInfo2 = subscribersPos[lastCdpId];\n\n subInfo2.arrPos = subInfo.arrPos;\n\n\n\n subscribers[subInfo.arrPos] = subscribers[subscribers.length - 1];\n\n subscribers.pop();\n\n\n\n changeIndex++;\n\n subInfo.subscribed = false;\n\n subInfo.arrPos = 0;\n\n\n\n emit Unsubscribed(msg.sender, _cdpId);\n\n }\n\n\n\n /// @notice Returns an address that owns the CDP\n\n /// @param _cdpId Id of the CDP\n\n function getOwner(uint _cdpId) public view returns(address) {\n\n return manager.owns(_cdpId);\n\n }\n\n\n\n /// @notice Helper method for the front to get all the info about the subscribed CDP\n\n function getSubscribedInfo(uint _cdpId) public view returns(bool, uint128, uint128, uint128, uint128, address, uint coll, uint debt) {\n\n SubPosition memory subInfo = subscribersPos[_cdpId];\n\n\n\n if (!subInfo.subscribed) return (false, 0, 0, 0, 0, address(0), 0, 0);\n\n\n\n (coll, debt) = saverProxy.getCdpInfo(manager, _cdpId, manager.ilks(_cdpId));\n\n\n\n CdpHolder memory subscriber = subscribers[subInfo.arrPos];\n\n\n\n return (\n\n true,\n\n subscriber.minRatio,\n\n subscriber.maxRatio,\n\n subscriber.optimalRatioRepay,\n\n subscriber.optimalRatioBoost,\n\n subscriber.owner,\n\n coll,\n\n debt\n\n );\n\n }\n\n\n\n function getCdpHolder(uint _cdpId) public view returns (bool subscribed, CdpHolder memory) {\n\n SubPosition memory subInfo = subscribersPos[_cdpId];\n\n\n\n if (!subInfo.subscribed) return (false, CdpHolder(0, 0, 0, 0, address(0), 0, false, false));\n\n\n\n CdpHolder memory subscriber = subscribers[subInfo.arrPos];\n\n\n\n return (true, subscriber);\n\n }\n\n\n\n /// @notice Helper method for the front to get the information about the ilk of a CDP\n\n function getIlkInfo(bytes32 _ilk, uint _cdpId) public view returns(bytes32 ilk, uint art, uint rate, uint spot, uint line, uint dust, uint mat, uint par) {\n\n // send either ilk or cdpId\n\n if (_ilk == bytes32(0)) {\n\n _ilk = manager.ilks(_cdpId);\n\n }\n\n\n\n ilk = _ilk;\n\n (,mat) = spotter.ilks(_ilk);\n\n par = spotter.par();\n\n (art, rate, spot, line, dust) = vat.ilks(_ilk);\n\n }\n\n\n\n /// @notice Helper method to return all the subscribed CDPs\n\n function getSubscribers() public view returns (CdpHolder[] memory) {\n\n return subscribers;\n\n }\n\n\n\n /// @notice Helper method to return all the subscribed CDPs\n\n function getSubscribersByPage(uint _page, uint _perPage) public view returns (CdpHolder[] memory) {\n\n CdpHolder[] memory holders = new CdpHolder[](_perPage);\n\n\n\n uint start = _page * _perPage;\n\n uint end = start + _perPage;\n\n\n\n uint count = 0;\n\n for (uint i=start; i<end; i++) {\n\n holders[count] = subscribers[i];\n\n count++;\n\n }\n\n\n\n return holders;\n\n }\n\n\n\n ////////////// ADMIN METHODS ///////////////////\n\n\n\n /// @notice Admin function to change a min. limit for an asset\n\n function changeMinRatios(bytes32 _ilk, uint _newRatio) public onlyOwner {\n\n minLimits[_ilk] = _newRatio;\n\n }\n\n\n\n /// @notice Admin function to unsubscribe a CDP\n\n function unsubscribeByAdmin(uint _cdpId) public onlyOwner {\n\n SubPosition storage subInfo = subscribersPos[_cdpId];\n\n\n\n if (subInfo.subscribed) {\n\n _unsubscribe(_cdpId);\n\n }\n\n }\n\n}\n\ncontract BidProxy {\n\n\n\n address public constant DAI_JOIN = 0x9759A6Ac90977b93B58547b4A71c78317f391A28;\n\n\n\n address public constant VAT_ADDRESS = 0x35D1b3F3D7966A1DFe207aa4514C12a259A0492B;\n\n address public constant DAI_ADDRESS = 0x6B175474E89094C44Da98b954EedeAC495271d0F;\n\n\n\n function daiBid(uint _bidId, uint _amount, address _flipper) public {\n\n uint tendAmount = _amount * (10 ** 27);\n\n\n\n joinDai(_amount);\n\n\n\n (, uint lot, , , , , , ) = Flipper(_flipper).bids(_bidId);\n\n\n\n Vat(VAT_ADDRESS).hope(_flipper);\n\n\n\n Flipper(_flipper).tend(_bidId, lot, tendAmount);\n\n }\n\n\n\n function collateralBid(uint _bidId, uint _amount, address _flipper) public {\n\n (uint bid, , , , , , , ) = Flipper(_flipper).bids(_bidId);\n\n\n\n joinDai(bid / (10**27));\n\n\n\n Vat(VAT_ADDRESS).hope(_flipper);\n\n\n\n Flipper(_flipper).dent(_bidId, _amount, bid);\n\n }\n\n\n\n function closeBid(uint _bidId, address _flipper, address _joinAddr) public {\n\n bytes32 ilk = Join(_joinAddr).ilk();\n\n\n\n Flipper(_flipper).deal(_bidId);\n\n uint amount = Vat(VAT_ADDRESS).gem(ilk, address(this)) / (10**27);\n\n\n\n Vat(VAT_ADDRESS).hope(_joinAddr);\n\n Gem(_joinAddr).exit(msg.sender, amount);\n\n }\n\n\n\n function exitCollateral(address _joinAddr) public {\n\n bytes32 ilk = Join(_joinAddr).ilk();\n\n\n\n uint amount = Vat(VAT_ADDRESS).gem(ilk, address(this)) / (10**27);\n\n\n\n Vat(VAT_ADDRESS).hope(_joinAddr);\n\n Gem(_joinAddr).exit(msg.sender, amount);\n\n }\n\n\n\n function exitDai() public {\n\n uint amount = Vat(VAT_ADDRESS).dai(address(this)) / (10**27);\n\n\n\n Vat(VAT_ADDRESS).hope(DAI_JOIN);\n\n Gem(DAI_JOIN).exit(msg.sender, amount);\n\n }\n\n\n\n function withdrawToken(address _token) public {\n\n uint balance = ERC20(_token).balanceOf(address(this));\n\n ERC20(_token).transfer(msg.sender, balance);\n\n }\n\n\n\n function withdrawEth() public {\n\n uint balance = address(this).balance;\n\n msg.sender.transfer(balance);\n\n }\n\n\n\n function joinDai(uint _amount) internal {\n\n uint amountInVat = Vat(VAT_ADDRESS).dai(address(this)) / (10**27);\n\n\n\n if (_amount > amountInVat) {\n\n uint amountDiff = (_amount - amountInVat) + 1;\n\n\n\n ERC20(DAI_ADDRESS).transferFrom(msg.sender, address(this), amountDiff);\n\n ERC20(DAI_ADDRESS).approve(DAI_JOIN, amountDiff);\n\n Join(DAI_JOIN).join(address(this), amountDiff);\n\n }\n\n }\n\n}\n\nabstract contract IMCDSubscriptions {\n\n function unsubscribe(uint256 _cdpId) external virtual ;\n\n\n\n function subscribersPos(uint256 _cdpId) external virtual returns (uint256, bool);\n\n}\n\nabstract contract GemLike {\n\n function approve(address, uint256) public virtual;\n\n\n\n function transfer(address, uint256) public virtual;\n\n\n\n function transferFrom(address, address, uint256) public virtual;\n\n\n\n function deposit() public virtual payable;\n\n\n\n function withdraw(uint256) public virtual;\n\n}\n\nabstract contract ManagerLike {\n\n function cdpCan(address, uint256, address) public virtual view returns (uint256);\n\n\n\n function ilks(uint256) public virtual view returns (bytes32);\n\n\n\n function owns(uint256) public virtual view returns (address);\n\n\n\n function urns(uint256) public virtual view returns (address);\n\n\n\n function vat() public virtual view returns (address);\n\n\n\n function open(bytes32, address) public virtual returns (uint256);\n\n\n\n function give(uint256, address) public virtual;\n\n\n\n function cdpAllow(uint256, address, uint256) public virtual;\n\n\n\n function urnAllow(address, uint256) public virtual;\n\n\n\n function frob(uint256, int256, int256) public virtual;\n\n\n\n function flux(uint256, address, uint256) public virtual;\n\n\n\n function move(uint256, address, uint256) public virtual;\n\n\n\n function exit(address, uint256, address, uint256) public virtual;\n\n\n\n function quit(uint256, address) public virtual;\n\n\n\n function enter(address, uint256) public virtual;\n\n\n\n function shift(uint256, uint256) public virtual;\n\n}\n\nabstract contract VatLike {\n\n function can(address, address) public virtual view returns (uint256);\n\n\n\n function ilks(bytes32) public virtual view returns (uint256, uint256, uint256, uint256, uint256);\n\n\n\n function dai(address) public virtual view returns (uint256);\n\n\n\n function urns(bytes32, address) public virtual view returns (uint256, uint256);\n\n\n\n function frob(bytes32, address, address, address, int256, int256) public virtual;\n\n\n\n function hope(address) public virtual;\n\n\n\n function move(address, address, uint256) public virtual;\n\n}\n\nabstract contract GemJoinLike {\n\n function dec() public virtual returns (uint256);\n\n\n\n function gem() public virtual returns (GemLike);\n\n\n\n function join(address, uint256) public virtual payable;\n\n\n\n function exit(address, uint256) public virtual;\n\n}\n\nabstract contract GNTJoinLike {\n\n function bags(address) public virtual view returns (address);\n\n\n\n function make(address) public virtual returns (address);\n\n}\n\nabstract contract DaiJoinLike {\n\n function vat() public virtual returns (VatLike);\n\n\n\n function dai() public virtual returns (GemLike);\n\n\n\n function join(address, uint256) public virtual payable;\n\n\n\n function exit(address, uint256) public virtual;\n\n}\n\nabstract contract HopeLike {\n\n function hope(address) public virtual;\n\n\n\n function nope(address) public virtual;\n\n}\n\nabstract contract ProxyRegistryInterface {\n\n function build(address) public virtual returns (address);\n\n}\n\nabstract contract EndLike {\n\n function fix(bytes32) public virtual view returns (uint256);\n\n\n\n function cash(bytes32, uint256) public virtual;\n\n\n\n function free(bytes32) public virtual;\n\n\n\n function pack(uint256) public virtual;\n\n\n\n function skim(bytes32, address) public virtual;\n\n}\n\nabstract contract JugLike {\n\n function drip(bytes32) public virtual returns (uint256);\n\n}\n\nabstract contract PotLike {\n\n function pie(address) public virtual view returns (uint256);\n\n\n\n function drip() public virtual returns (uint256);\n\n\n\n function join(uint256) public virtual;\n\n\n\n function exit(uint256) public virtual;\n\n}\n\nabstract contract ProxyRegistryLike {\n\n function proxies(address) public virtual view returns (address);\n\n\n\n function build(address) public virtual returns (address);\n\n}\n\nabstract contract ProxyLike {\n\n function owner() public virtual view returns (address);\n\n}\n\ncontract Common {\n\n uint256 constant RAY = 10**27;\n\n\n\n // Internal functions\n\n\n\n function mul(uint256 x, uint256 y) internal pure returns (uint256 z) {\n\n require(y == 0 || (z = x * y) / y == x, \"mul-overflow\");\n\n }\n\n\n\n // Public functions\n\n // solhint-disable-next-line func-name-mixedcase\n\n function daiJoin_join(address apt, address urn, uint256 wad) public {\n\n // Gets DAI from the user's wallet\n\n DaiJoinLike(apt).dai().transferFrom(msg.sender, address(this), wad);\n\n // Approves adapter to take the DAI amount\n\n DaiJoinLike(apt).dai().approve(apt, wad);\n\n // Joins DAI into the vat\n\n DaiJoinLike(apt).join(urn, wad);\n\n }\n\n}\n\ncontract MCDCreateProxyActions is Common {\n\n // Internal functions\n\n\n\n function sub(uint256 x, uint256 y) internal pure returns (uint256 z) {\n\n require((z = x - y) <= x, \"sub-overflow\");\n\n }\n\n\n\n function toInt(uint256 x) internal pure returns (int256 y) {\n\n y = int256(x);\n\n require(y >= 0, \"int-overflow\");\n\n }\n\n\n\n function toRad(uint256 wad) internal pure returns (uint256 rad) {\n\n rad = mul(wad, 10**27);\n\n }\n\n\n\n function convertTo18(address gemJoin, uint256 amt) internal returns (uint256 wad) {\n\n // For those collaterals that have less than 18 decimals precision we need to do the conversion before passing to frob function\n\n // Adapters will automatically handle the difference of precision\n\n wad = mul(amt, 10**(18 - GemJoinLike(gemJoin).dec()));\n\n }\n\n\n\n function _getDrawDart(address vat, address jug, address urn, bytes32 ilk, uint256 wad)\n\n internal\n\n returns (int256 dart)\n\n {\n\n // Updates stability fee rate\n\n uint256 rate = JugLike(jug).drip(ilk);\n\n\n\n // Gets DAI balance of the urn in the vat\n\n uint256 dai = VatLike(vat).dai(urn);\n\n\n\n // If there was already enough DAI in the vat balance, just exits it without adding more debt\n\n if (dai < mul(wad, RAY)) {\n\n // Calculates the needed dart so together with the existing dai in the vat is enough to exit wad amount of DAI tokens\n\n dart = toInt(sub(mul(wad, RAY), dai) / rate);\n\n // This is neeeded due lack of precision. It might need to sum an extra dart wei (for the given DAI wad amount)\n\n dart = mul(uint256(dart), rate) < mul(wad, RAY) ? dart + 1 : dart;\n\n }\n\n }\n\n\n\n function _getWipeDart(address vat, uint256 dai, address urn, bytes32 ilk)\n\n internal\n\n view\n\n returns (int256 dart)\n\n {\n\n // Gets actual rate from the vat\n\n (, uint256 rate, , , ) = VatLike(vat).ilks(ilk);\n\n // Gets actual art value of the urn\n\n (, uint256 art) = VatLike(vat).urns(ilk, urn);\n\n\n\n // Uses the whole dai balance in the vat to reduce the debt\n\n dart = toInt(dai / rate);\n\n // Checks the calculated dart is not higher than urn.art (total debt), otherwise uses its value\n\n dart = uint256(dart) <= art ? -dart : -toInt(art);\n\n }\n\n\n\n function _getWipeAllWad(address vat, address usr, address urn, bytes32 ilk)\n\n internal\n\n view\n\n returns (uint256 wad)\n\n {\n\n // Gets actual rate from the vat\n\n (, uint256 rate, , , ) = VatLike(vat).ilks(ilk);\n\n // Gets actual art value of the urn\n\n (, uint256 art) = VatLike(vat).urns(ilk, urn);\n\n // Gets actual dai amount in the urn\n\n uint256 dai = VatLike(vat).dai(usr);\n\n\n\n uint256 rad = sub(mul(art, rate), dai);\n\n wad = rad / RAY;\n\n\n\n // If the rad precision has some dust, it will need to request for 1 extra wad wei\n\n wad = mul(wad, RAY) < rad ? wad + 1 : wad;\n\n }\n\n\n\n // Public functions\n\n\n\n function transfer(address gem, address dst, uint256 wad) public {\n\n GemLike(gem).transfer(dst, wad);\n\n }\n\n\n\n // solhint-disable-next-line func-name-mixedcase\n\n function ethJoin_join(address apt, address urn) public payable {\n\n // Wraps ETH in WETH\n\n GemJoinLike(apt).gem().deposit{value: msg.value}();\n\n // Approves adapter to take the WETH amount\n\n GemJoinLike(apt).gem().approve(address(apt), msg.value);\n\n // Joins WETH collateral into the vat\n\n GemJoinLike(apt).join(urn, msg.value);\n\n }\n\n\n\n // solhint-disable-next-line func-name-mixedcase\n\n function gemJoin_join(address apt, address urn, uint256 wad, bool transferFrom) public {\n\n // Only executes for tokens that have approval/transferFrom implementation\n\n if (transferFrom) {\n\n // Gets token from the user's wallet\n\n GemJoinLike(apt).gem().transferFrom(msg.sender, address(this), wad);\n\n // Approves adapter to take the token amount\n\n GemJoinLike(apt).gem().approve(apt, 0);\n\n GemJoinLike(apt).gem().approve(apt, wad);\n\n }\n\n // Joins token collateral into the vat\n\n GemJoinLike(apt).join(urn, wad);\n\n }\n\n\n\n function hope(address obj, address usr) public {\n\n HopeLike(obj).hope(usr);\n\n }\n\n\n\n function nope(address obj, address usr) public {\n\n HopeLike(obj).nope(usr);\n\n }\n\n\n\n function open(address manager, bytes32 ilk, address usr) public returns (uint256 cdp) {\n\n cdp = ManagerLike(manager).open(ilk, usr);\n\n }\n\n\n\n function give(address manager, uint256 cdp, address usr) public {\n\n ManagerLike(manager).give(cdp, usr);\n\n }\n\n\n\n function move(address manager, uint256 cdp, address dst, uint256 rad) public {\n\n ManagerLike(manager).move(cdp, dst, rad);\n\n }\n\n\n\n function frob(address manager, uint256 cdp, int256 dink, int256 dart) public {\n\n ManagerLike(manager).frob(cdp, dink, dart);\n\n }\n\n\n\n function lockETH(address manager, address ethJoin, uint256 cdp) public payable {\n\n // Receives ETH amount, converts it to WETH and joins it into the vat\n\n ethJoin_join(ethJoin, address(this));\n\n // Locks WETH amount into the CDP\n\n VatLike(ManagerLike(manager).vat()).frob(\n\n ManagerLike(manager).ilks(cdp),\n\n ManagerLike(manager).urns(cdp),\n\n address(this),\n\n address(this),\n\n toInt(msg.value),\n\n 0\n\n );\n\n }\n\n\n\n function lockGem(address manager, address gemJoin, uint256 cdp, uint256 wad, bool transferFrom)\n\n public\n\n {\n\n // Takes token amount from user's wallet and joins into the vat\n\n gemJoin_join(gemJoin, address(this), wad, transferFrom);\n\n // Locks token amount into the CDP\n\n VatLike(ManagerLike(manager).vat()).frob(\n\n ManagerLike(manager).ilks(cdp),\n\n ManagerLike(manager).urns(cdp),\n\n address(this),\n\n address(this),\n\n toInt(convertTo18(gemJoin, wad)),\n\n 0\n\n );\n\n }\n\n\n\n function draw(address manager, address jug, address daiJoin, uint256 cdp, uint256 wad) public {\n\n address urn = ManagerLike(manager).urns(cdp);\n\n address vat = ManagerLike(manager).vat();\n\n bytes32 ilk = ManagerLike(manager).ilks(cdp);\n\n // Generates debt in the CDP\n\n frob(manager, cdp, 0, _getDrawDart(vat, jug, urn, ilk, wad));\n\n // Moves the DAI amount (balance in the vat in rad) to proxy's address\n\n move(manager, cdp, address(this), toRad(wad));\n\n // Allows adapter to access to proxy's DAI balance in the vat\n\n if (VatLike(vat).can(address(this), address(daiJoin)) == 0) {\n\n VatLike(vat).hope(daiJoin);\n\n }\n\n // Exits DAI to the user's wallet as a token\n\n DaiJoinLike(daiJoin).exit(msg.sender, wad);\n\n }\n\n\n\n function lockETHAndDraw(\n\n address manager,\n\n address jug,\n\n address ethJoin,\n\n address daiJoin,\n\n uint256 cdp,\n\n uint256 wadD\n\n ) public payable {\n\n address urn = ManagerLike(manager).urns(cdp);\n\n address vat = ManagerLike(manager).vat();\n\n bytes32 ilk = ManagerLike(manager).ilks(cdp);\n\n // Receives ETH amount, converts it to WETH and joins it into the vat\n\n ethJoin_join(ethJoin, urn);\n\n // Locks WETH amount into the CDP and generates debt\n\n frob(manager, cdp, toInt(msg.value), _getDrawDart(vat, jug, urn, ilk, wadD));\n\n // Moves the DAI amount (balance in the vat in rad) to proxy's address\n\n move(manager, cdp, address(this), toRad(wadD));\n\n // Allows adapter to access to proxy's DAI balance in the vat\n\n if (VatLike(vat).can(address(this), address(daiJoin)) == 0) {\n\n VatLike(vat).hope(daiJoin);\n\n }\n\n // Exits DAI to the user's wallet as a token\n\n DaiJoinLike(daiJoin).exit(msg.sender, wadD);\n\n }\n\n\n\n function openLockETHAndDraw(\n\n address manager,\n\n address jug,\n\n address ethJoin,\n\n address daiJoin,\n\n bytes32 ilk,\n\n uint256 wadD,\n\n address owner\n\n ) public payable returns (uint256 cdp) {\n\n cdp = open(manager, ilk, address(this));\n\n lockETHAndDraw(manager, jug, ethJoin, daiJoin, cdp, wadD);\n\n give(manager, cdp, owner);\n\n }\n\n\n\n function lockGemAndDraw(\n\n address manager,\n\n address jug,\n\n address gemJoin,\n\n address daiJoin,\n\n uint256 cdp,\n\n uint256 wadC,\n\n uint256 wadD,\n\n bool transferFrom\n\n ) public {\n\n address urn = ManagerLike(manager).urns(cdp);\n\n address vat = ManagerLike(manager).vat();\n\n bytes32 ilk = ManagerLike(manager).ilks(cdp);\n\n // Takes token amount from user's wallet and joins into the vat\n\n gemJoin_join(gemJoin, urn, wadC, transferFrom);\n\n // Locks token amount into the CDP and generates debt\n\n frob(\n\n manager,\n\n cdp,\n\n toInt(convertTo18(gemJoin, wadC)),\n\n _getDrawDart(vat, jug, urn, ilk, wadD)\n\n );\n\n // Moves the DAI amount (balance in the vat in rad) to proxy's address\n\n move(manager, cdp, address(this), toRad(wadD));\n\n // Allows adapter to access to proxy's DAI balance in the vat\n\n if (VatLike(vat).can(address(this), address(daiJoin)) == 0) {\n\n VatLike(vat).hope(daiJoin);\n\n }\n\n // Exits DAI to the user's wallet as a token\n\n DaiJoinLike(daiJoin).exit(msg.sender, wadD);\n\n }\n\n\n\n function openLockGemAndDraw(\n\n address manager,\n\n address jug,\n\n address gemJoin,\n\n address daiJoin,\n\n bytes32 ilk,\n\n uint256 wadC,\n\n uint256 wadD,\n\n bool transferFrom,\n\n address owner\n\n ) public returns (uint256 cdp) {\n\n cdp = open(manager, ilk, address(this));\n\n lockGemAndDraw(manager, jug, gemJoin, daiJoin, cdp, wadC, wadD, transferFrom);\n\n give(manager, cdp, owner);\n\n }\n\n}\n\ncontract MCDCreateTaker {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n address payable public constant MCD_CREATE_FLASH_LOAN = 0x71eC9a4fCE561c3936a511D9ebb05B60CF2bA519;\n\n\n\n address public constant DAI_ADDRESS = 0x6B175474E89094C44Da98b954EedeAC495271d0F;\n\n address public constant ETH_JOIN_ADDRESS = 0x2F0b23f53734252Bda2277357e97e1517d6B042A;\n\n\n\n ILendingPool public constant lendingPool = ILendingPool(0x398eC7346DcD622eDc5ae82352F02bE94C62d119);\n\n\n\n // solhint-disable-next-line const-name-snakecase\n\n Manager public constant manager = Manager(0x5ef30b9986345249bc32d8928B7ee64DE9435E39);\n\n\n\n // solhint-disable-next-line const-name-snakecase\n\n DefisaverLogger public constant logger = DefisaverLogger(0x5c55B921f590a89C1Ebe84dF170E655a82b62126);\n\n\n\n struct CreateData {\n\n uint collAmount;\n\n uint daiAmount;\n\n address joinAddr;\n\n }\n\n\n\n function openWithLoan(\n\n SaverExchangeCore.ExchangeData memory _exchangeData,\n\n CreateData memory _createData\n\n ) public payable {\n\n\n\n MCD_CREATE_FLASH_LOAN.transfer(msg.value); //0x fee\n\n\n\n\n\n if (_createData.joinAddr != ETH_JOIN_ADDRESS) {\n\n ERC20(getCollateralAddr(_createData.joinAddr)).safeTransferFrom(msg.sender, address(this), _createData.collAmount);\n\n ERC20(getCollateralAddr(_createData.joinAddr)).safeTransfer(MCD_CREATE_FLASH_LOAN, _createData.collAmount);\n\n }\n\n\n\n (uint[6] memory numData, address[5] memory addrData, bytes memory callData)\n\n = _packData(_createData, _exchangeData);\n\n bytes memory paramsData = abi.encode(numData, addrData, callData, address(this));\n\n\n\n lendingPool.flashLoan(MCD_CREATE_FLASH_LOAN, DAI_ADDRESS, _createData.daiAmount, paramsData);\n\n\n\n logger.Log(address(this), msg.sender, \"MCDCreate\", abi.encode(manager.last(address(this)), _createData.collAmount, _createData.daiAmount));\n\n }\n\n\n\n function getCollateralAddr(address _joinAddr) internal view returns (address) {\n\n return address(Join(_joinAddr).gem());\n\n }\n\n\n\n function _packData(\n\n CreateData memory _createData,\n\n SaverExchangeCore.ExchangeData memory exchangeData\n\n ) internal pure returns (uint[6] memory numData, address[5] memory addrData, bytes memory callData) {\n\n\n\n numData = [\n\n _createData.collAmount,\n\n _createData.daiAmount,\n\n exchangeData.srcAmount,\n\n exchangeData.destAmount,\n\n exchangeData.minPrice,\n\n exchangeData.price0x\n\n ];\n\n\n\n addrData = [\n\n exchangeData.srcAddr,\n\n exchangeData.destAddr,\n\n exchangeData.exchangeAddr,\n\n exchangeData.wrapper,\n\n _createData.joinAddr\n\n ];\n\n\n\n callData = exchangeData.callData;\n\n }\n\n}\n\nabstract contract GemLike {\n\n function approve(address, uint) virtual public;\n\n function transfer(address, uint) virtual public;\n\n function transferFrom(address, address, uint) virtual public;\n\n function deposit() virtual public payable;\n\n function withdraw(uint) virtual public;\n\n}\n\nabstract contract ManagerLike {\n\n function cdpCan(address, uint, address) virtual public view returns (uint);\n\n function ilks(uint) virtual public view returns (bytes32);\n\n function owns(uint) virtual public view returns (address);\n\n function urns(uint) virtual public view returns (address);\n\n function vat() virtual public view returns (address);\n\n function open(bytes32, address) virtual public returns (uint);\n\n function give(uint, address) virtual public;\n\n function cdpAllow(uint, address, uint) virtual public;\n\n function urnAllow(address, uint) virtual public;\n\n function frob(uint, int, int) virtual public;\n\n function flux(uint, address, uint) virtual public;\n\n function move(uint, address, uint) virtual public;\n\n function exit(address, uint, address, uint) virtual public;\n\n function quit(uint, address) virtual public;\n\n function enter(address, uint) virtual public;\n\n function shift(uint, uint) virtual public;\n\n}\n\nabstract contract VatLike {\n\n function can(address, address) virtual public view returns (uint);\n\n function ilks(bytes32) virtual public view returns (uint, uint, uint, uint, uint);\n\n function dai(address) virtual public view returns (uint);\n\n function urns(bytes32, address) virtual public view returns (uint, uint);\n\n function frob(bytes32, address, address, address, int, int) virtual public;\n\n function hope(address) virtual public;\n\n function move(address, address, uint) virtual public;\n\n}\n\nabstract contract GemJoinLike {\n\n function dec() virtual public returns (uint);\n\n function gem() virtual public returns (GemLike);\n\n function join(address, uint) virtual public payable;\n\n function exit(address, uint) virtual public;\n\n}\n\nabstract contract GNTJoinLike {\n\n function bags(address) virtual public view returns (address);\n\n function make(address) virtual public returns (address);\n\n}\n\nabstract contract DaiJoinLike {\n\n function vat() virtual public returns (VatLike);\n\n function dai() virtual public returns (GemLike);\n\n function join(address, uint) virtual public payable;\n\n function exit(address, uint) virtual public;\n\n}\n\nabstract contract HopeLike {\n\n function hope(address) virtual public;\n\n function nope(address) virtual public;\n\n}\n\nabstract contract ProxyRegistryInterface {\n\n function proxies(address _owner) virtual public view returns (address);\n\n function build(address) virtual public returns (address);\n\n}\n\nabstract contract EndLike {\n\n function fix(bytes32) virtual public view returns (uint);\n\n function cash(bytes32, uint) virtual public;\n\n function free(bytes32) virtual public;\n\n function pack(uint) virtual public;\n\n function skim(bytes32, address) virtual public;\n\n}\n\nabstract contract JugLike {\n\n function drip(bytes32) virtual public returns (uint);\n\n}\n\nabstract contract PotLike {\n\n function pie(address) virtual public view returns (uint);\n\n function drip() virtual public returns (uint);\n\n function join(uint) virtual public;\n\n function exit(uint) virtual public;\n\n}\n\nabstract contract ProxyRegistryLike {\n\n function proxies(address) virtual public view returns (address);\n\n function build(address) virtual public returns (address);\n\n}\n\nabstract contract ProxyLike {\n\n function owner() virtual public view returns (address);\n\n}\n\nabstract contract DSProxy {\n\n function execute(address _target, bytes memory _data) virtual public payable returns (bytes32);\n\n function setOwner(address owner_) virtual public;\n\n}\n\ncontract Common {\n\n uint256 constant RAY = 10 ** 27;\n\n\n\n // Internal functions\n\n\n\n function mul(uint x, uint y) internal pure returns (uint z) {\n\n require(y == 0 || (z = x * y) / y == x, \"mul-overflow\");\n\n }\n\n\n\n // Public functions\n\n\n\n function daiJoin_join(address apt, address urn, uint wad) public {\n\n // Gets DAI from the user's wallet\n\n DaiJoinLike(apt).dai().transferFrom(msg.sender, address(this), wad);\n\n // Approves adapter to take the DAI amount\n\n DaiJoinLike(apt).dai().approve(apt, wad);\n\n // Joins DAI into the vat\n\n DaiJoinLike(apt).join(urn, wad);\n\n }\n\n}\n\ncontract SaverProxyActions is Common {\n\n\n\n\n\n event CDPAction(string indexed, uint indexed, uint, uint);\n\n\n\n // Internal functions\n\n\n\n function sub(uint x, uint y) internal pure returns (uint z) {\n\n require((z = x - y) <= x, \"sub-overflow\");\n\n }\n\n\n\n function toInt(uint x) internal pure returns (int y) {\n\n y = int(x);\n\n require(y >= 0, \"int-overflow\");\n\n }\n\n\n\n function toRad(uint wad) internal pure returns (uint rad) {\n\n rad = mul(wad, 10 ** 27);\n\n }\n\n\n\n function convertTo18(address gemJoin, uint256 amt) internal returns (uint256 wad) {\n\n // For those collaterals that have less than 18 decimals precision we need to do the conversion before passing to frob function\n\n // Adapters will automatically handle the difference of precision\n\n wad = mul(\n\n amt,\n\n 10 ** (18 - GemJoinLike(gemJoin).dec())\n\n );\n\n }\n\n\n\n function _getDrawDart(\n\n address vat,\n\n address jug,\n\n address urn,\n\n bytes32 ilk,\n\n uint wad\n\n ) internal returns (int dart) {\n\n // Updates stability fee rate\n\n uint rate = JugLike(jug).drip(ilk);\n\n\n\n // Gets DAI balance of the urn in the vat\n\n uint dai = VatLike(vat).dai(urn);\n\n\n\n // If there was already enough DAI in the vat balance, just exits it without adding more debt\n\n if (dai < mul(wad, RAY)) {\n\n // Calculates the needed dart so together with the existing dai in the vat is enough to exit wad amount of DAI tokens\n\n dart = toInt(sub(mul(wad, RAY), dai) / rate);\n\n // This is neeeded due lack of precision. It might need to sum an extra dart wei (for the given DAI wad amount)\n\n dart = mul(uint(dart), rate) < mul(wad, RAY) ? dart + 1 : dart;\n\n }\n\n }\n\n\n\n function _getWipeDart(\n\n address vat,\n\n uint dai,\n\n address urn,\n\n bytes32 ilk\n\n ) internal view returns (int dart) {\n\n // Gets actual rate from the vat\n\n (, uint rate,,,) = VatLike(vat).ilks(ilk);\n\n // Gets actual art value of the urn\n\n (, uint art) = VatLike(vat).urns(ilk, urn);\n\n\n\n // Uses the whole dai balance in the vat to reduce the debt\n\n dart = toInt(dai / rate);\n\n // Checks the calculated dart is not higher than urn.art (total debt), otherwise uses its value\n\n dart = uint(dart) <= art ? - dart : - toInt(art);\n\n }\n\n\n\n function _getWipeAllWad(\n\n address vat,\n\n address usr,\n\n address urn,\n\n bytes32 ilk\n\n ) internal view returns (uint wad) {\n\n // Gets actual rate from the vat\n\n (, uint rate,,,) = VatLike(vat).ilks(ilk);\n\n // Gets actual art value of the urn\n\n (, uint art) = VatLike(vat).urns(ilk, urn);\n\n // Gets actual dai amount in the urn\n\n uint dai = VatLike(vat).dai(usr);\n\n\n\n uint rad = sub(mul(art, rate), dai);\n\n wad = rad / RAY;\n\n\n\n // If the rad precision has some dust, it will need to request for 1 extra wad wei\n\n wad = mul(wad, RAY) < rad ? wad + 1 : wad;\n\n }\n\n\n\n // Public functions\n\n\n\n function transfer(address gem, address dst, uint wad) public {\n\n GemLike(gem).transfer(dst, wad);\n\n }\n\n\n\n function ethJoin_join(address apt, address urn) public payable {\n\n // Wraps ETH in WETH\n\n GemJoinLike(apt).gem().deposit{value: msg.value}();\n\n // Approves adapter to take the WETH amount\n\n GemJoinLike(apt).gem().approve(address(apt), msg.value);\n\n // Joins WETH collateral into the vat\n\n GemJoinLike(apt).join(urn, msg.value);\n\n }\n\n\n\n function gemJoin_join(address apt, address urn, uint wad, bool transferFrom) public {\n\n // Only executes for tokens that have approval/transferFrom implementation\n\n if (transferFrom) {\n\n // Gets token from the user's wallet\n\n GemJoinLike(apt).gem().transferFrom(msg.sender, address(this), wad);\n\n // Approves adapter to take the token amount\n\n GemJoinLike(apt).gem().approve(apt, 0);\n\n GemJoinLike(apt).gem().approve(apt, wad);\n\n }\n\n // Joins token collateral into the vat\n\n GemJoinLike(apt).join(urn, wad);\n\n }\n\n\n\n function hope(\n\n address obj,\n\n address usr\n\n ) public {\n\n HopeLike(obj).hope(usr);\n\n }\n\n\n\n function nope(\n\n address obj,\n\n address usr\n\n ) public {\n\n HopeLike(obj).nope(usr);\n\n }\n\n\n\n function open(\n\n address manager,\n\n bytes32 ilk,\n\n address usr\n\n ) public returns (uint cdp) {\n\n cdp = ManagerLike(manager).open(ilk, usr);\n\n }\n\n\n\n function give(\n\n address manager,\n\n uint cdp,\n\n address usr\n\n ) public {\n\n ManagerLike(manager).give(cdp, usr);\n\n\n\n emit CDPAction('give', cdp, 0, 0);\n\n }\n\n\n\n function giveToProxy(\n\n address proxyRegistry,\n\n address manager,\n\n uint cdp,\n\n address dst\n\n ) public {\n\n // Gets actual proxy address\n\n address proxy = ProxyRegistryLike(proxyRegistry).proxies(dst);\n\n // Checks if the proxy address already existed and dst address is still the owner\n\n if (proxy == address(0) || ProxyLike(proxy).owner() != dst) {\n\n uint csize;\n\n assembly {\n\n csize := extcodesize(dst)\n\n }\n\n // We want to avoid creating a proxy for a contract address that might not be able to handle proxies, then losing the CDP\n\n require(csize == 0, \"Dst-is-a-contract\");\n\n // Creates the proxy for the dst address\n\n proxy = ProxyRegistryLike(proxyRegistry).build(dst);\n\n }\n\n // Transfers CDP to the dst proxy\n\n give(manager, cdp, proxy);\n\n }\n\n\n\n function cdpAllow(\n\n address manager,\n\n uint cdp,\n\n address usr,\n\n uint ok\n\n ) public {\n\n ManagerLike(manager).cdpAllow(cdp, usr, ok);\n\n }\n\n\n\n function urnAllow(\n\n address manager,\n\n address usr,\n\n uint ok\n\n ) public {\n\n ManagerLike(manager).urnAllow(usr, ok);\n\n }\n\n\n\n function flux(\n\n address manager,\n\n uint cdp,\n\n address dst,\n\n uint wad\n\n ) public {\n\n ManagerLike(manager).flux(cdp, dst, wad);\n\n }\n\n\n\n function move(\n\n address manager,\n\n uint cdp,\n\n address dst,\n\n uint rad\n\n ) public {\n\n ManagerLike(manager).move(cdp, dst, rad);\n\n }\n\n\n\n function frob(\n\n address manager,\n\n uint cdp,\n\n int dink,\n\n int dart\n\n ) public {\n\n ManagerLike(manager).frob(cdp, dink, dart);\n\n }\n\n\n\n function quit(\n\n address manager,\n\n uint cdp,\n\n address dst\n\n ) public {\n\n ManagerLike(manager).quit(cdp, dst);\n\n }\n\n\n\n function enter(\n\n address manager,\n\n address src,\n\n uint cdp\n\n ) public {\n\n ManagerLike(manager).enter(src, cdp);\n\n }\n\n\n\n function shift(\n\n address manager,\n\n uint cdpSrc,\n\n uint cdpOrg\n\n ) public {\n\n ManagerLike(manager).shift(cdpSrc, cdpOrg);\n\n }\n\n\n\n function makeGemBag(\n\n address gemJoin\n\n ) public returns (address bag) {\n\n bag = GNTJoinLike(gemJoin).make(address(this));\n\n }\n\n\n\n function lockETH(\n\n address manager,\n\n address ethJoin,\n\n uint cdp\n\n ) public payable {\n\n // Receives ETH amount, converts it to WETH and joins it into the vat\n\n ethJoin_join(ethJoin, address(this));\n\n // Locks WETH amount into the CDP\n\n VatLike(ManagerLike(manager).vat()).frob(\n\n ManagerLike(manager).ilks(cdp),\n\n ManagerLike(manager).urns(cdp),\n\n address(this),\n\n address(this),\n\n toInt(msg.value),\n\n 0\n\n );\n\n\n\n emit CDPAction('lockETH', cdp, msg.value, 0);\n\n }\n\n\n\n function lockGem(\n\n address manager,\n\n address gemJoin,\n\n uint cdp,\n\n uint wad,\n\n bool transferFrom\n\n ) public {\n\n // Takes token amount from user's wallet and joins into the vat\n\n gemJoin_join(gemJoin, address(this), wad, transferFrom);\n\n // Locks token amount into the CDP\n\n VatLike(ManagerLike(manager).vat()).frob(\n\n ManagerLike(manager).ilks(cdp),\n\n ManagerLike(manager).urns(cdp),\n\n address(this),\n\n address(this),\n\n toInt(convertTo18(gemJoin, wad)),\n\n 0\n\n );\n\n\n\n emit CDPAction('lockGem', cdp, wad, 0);\n\n }\n\n\n\n function freeETH(\n\n address manager,\n\n address ethJoin,\n\n uint cdp,\n\n uint wad\n\n ) public {\n\n // Unlocks WETH amount from the CDP\n\n frob(manager, cdp, -toInt(wad), 0);\n\n // Moves the amount from the CDP urn to proxy's address\n\n flux(manager, cdp, address(this), wad);\n\n // Exits WETH amount to proxy address as a token\n\n GemJoinLike(ethJoin).exit(address(this), wad);\n\n // Converts WETH to ETH\n\n GemJoinLike(ethJoin).gem().withdraw(wad);\n\n // Sends ETH back to the user's wallet\n\n msg.sender.transfer(wad);\n\n\n\n emit CDPAction('freeETH', cdp, wad, 0);\n\n }\n\n\n\n function freeGem(\n\n address manager,\n\n address gemJoin,\n\n uint cdp,\n\n uint wad\n\n ) public {\n\n uint wad18 = convertTo18(gemJoin, wad);\n\n // Unlocks token amount from the CDP\n\n frob(manager, cdp, -toInt(wad18), 0);\n\n // Moves the amount from the CDP urn to proxy's address\n\n flux(manager, cdp, address(this), wad18);\n\n // Exits token amount to the user's wallet as a token\n\n GemJoinLike(gemJoin).exit(msg.sender, wad);\n\n\n\n emit CDPAction('freeGem', cdp, wad, 0);\n\n }\n\n\n\n function exitETH(\n\n address manager,\n\n address ethJoin,\n\n uint cdp,\n\n uint wad\n\n ) public {\n\n // Moves the amount from the CDP urn to proxy's address\n\n flux(manager, cdp, address(this), wad);\n\n\n\n // Exits WETH amount to proxy address as a token\n\n GemJoinLike(ethJoin).exit(address(this), wad);\n\n // Converts WETH to ETH\n\n GemJoinLike(ethJoin).gem().withdraw(wad);\n\n // Sends ETH back to the user's wallet\n\n msg.sender.transfer(wad);\n\n }\n\n\n\n function exitGem(\n\n address manager,\n\n address gemJoin,\n\n uint cdp,\n\n uint wad\n\n ) public {\n\n // Moves the amount from the CDP urn to proxy's address\n\n flux(manager, cdp, address(this), convertTo18(gemJoin, wad));\n\n\n\n // Exits token amount to the user's wallet as a token\n\n GemJoinLike(gemJoin).exit(msg.sender, wad);\n\n }\n\n\n\n function draw(\n\n address manager,\n\n address jug,\n\n address daiJoin,\n\n uint cdp,\n\n uint wad\n\n ) public {\n\n address urn = ManagerLike(manager).urns(cdp);\n\n address vat = ManagerLike(manager).vat();\n\n bytes32 ilk = ManagerLike(manager).ilks(cdp);\n\n // Generates debt in the CDP\n\n frob(manager, cdp, 0, _getDrawDart(vat, jug, urn, ilk, wad));\n\n // Moves the DAI amount (balance in the vat in rad) to proxy's address\n\n move(manager, cdp, address(this), toRad(wad));\n\n // Allows adapter to access to proxy's DAI balance in the vat\n\n if (VatLike(vat).can(address(this), address(daiJoin)) == 0) {\n\n VatLike(vat).hope(daiJoin);\n\n }\n\n // Exits DAI to the user's wallet as a token\n\n DaiJoinLike(daiJoin).exit(msg.sender, wad);\n\n\n\n emit CDPAction('draw', cdp, 0, wad);\n\n }\n\n\n\n function wipe(\n\n address manager,\n\n address daiJoin,\n\n uint cdp,\n\n uint wad\n\n ) public {\n\n address vat = ManagerLike(manager).vat();\n\n address urn = ManagerLike(manager).urns(cdp);\n\n bytes32 ilk = ManagerLike(manager).ilks(cdp);\n\n\n\n address own = ManagerLike(manager).owns(cdp);\n\n if (own == address(this) || ManagerLike(manager).cdpCan(own, cdp, address(this)) == 1) {\n\n // Joins DAI amount into the vat\n\n daiJoin_join(daiJoin, urn, wad);\n\n // Paybacks debt to the CDP\n\n frob(manager, cdp, 0, _getWipeDart(vat, VatLike(vat).dai(urn), urn, ilk));\n\n } else {\n\n // Joins DAI amount into the vat\n\n daiJoin_join(daiJoin, address(this), wad);\n\n // Paybacks debt to the CDP\n\n VatLike(vat).frob(\n\n ilk,\n\n urn,\n\n address(this),\n\n address(this),\n\n 0,\n\n _getWipeDart(vat, wad * RAY, urn, ilk)\n\n );\n\n }\n\n\n\n emit CDPAction('wipe', cdp, 0, wad);\n\n }\n\n\n\n function wipeAll(\n\n address manager,\n\n address daiJoin,\n\n uint cdp\n\n ) public {\n\n address vat = ManagerLike(manager).vat();\n\n address urn = ManagerLike(manager).urns(cdp);\n\n bytes32 ilk = ManagerLike(manager).ilks(cdp);\n\n (, uint art) = VatLike(vat).urns(ilk, urn);\n\n\n\n address own = ManagerLike(manager).owns(cdp);\n\n if (own == address(this) || ManagerLike(manager).cdpCan(own, cdp, address(this)) == 1) {\n\n // Joins DAI amount into the vat\n\n daiJoin_join(daiJoin, urn, _getWipeAllWad(vat, urn, urn, ilk));\n\n // Paybacks debt to the CDP\n\n frob(manager, cdp, 0, -int(art));\n\n } else {\n\n // Joins DAI amount into the vat\n\n daiJoin_join(daiJoin, address(this), _getWipeAllWad(vat, address(this), urn, ilk));\n\n // Paybacks debt to the CDP\n\n VatLike(vat).frob(\n\n ilk,\n\n urn,\n\n address(this),\n\n address(this),\n\n 0,\n\n -int(art)\n\n );\n\n }\n\n\n\n emit CDPAction('wipeAll', cdp, 0, art);\n\n }\n\n\n\n function lockETHAndDraw(\n\n address manager,\n\n address jug,\n\n address ethJoin,\n\n address daiJoin,\n\n uint cdp,\n\n uint wadD\n\n ) public payable {\n\n address urn = ManagerLike(manager).urns(cdp);\n\n address vat = ManagerLike(manager).vat();\n\n bytes32 ilk = ManagerLike(manager).ilks(cdp);\n\n // Receives ETH amount, converts it to WETH and joins it into the vat\n\n ethJoin_join(ethJoin, urn);\n\n // Locks WETH amount into the CDP and generates debt\n\n frob(manager, cdp, toInt(msg.value), _getDrawDart(vat, jug, urn, ilk, wadD));\n\n // Moves the DAI amount (balance in the vat in rad) to proxy's address\n\n move(manager, cdp, address(this), toRad(wadD));\n\n // Allows adapter to access to proxy's DAI balance in the vat\n\n if (VatLike(vat).can(address(this), address(daiJoin)) == 0) {\n\n VatLike(vat).hope(daiJoin);\n\n }\n\n // Exits DAI to the user's wallet as a token\n\n DaiJoinLike(daiJoin).exit(msg.sender, wadD);\n\n }\n\n\n\n function openLockETHAndDraw(\n\n address manager,\n\n address jug,\n\n address ethJoin,\n\n address daiJoin,\n\n bytes32 ilk,\n\n uint wadD\n\n ) public payable returns (uint cdp) {\n\n cdp = open(manager, ilk, address(this));\n\n lockETHAndDraw(manager, jug, ethJoin, daiJoin, cdp, wadD);\n\n\n\n emit CDPAction('openLockETHAndDraw', cdp, msg.value, wadD);\n\n }\n\n\n\n function lockGemAndDraw(\n\n address manager,\n\n address jug,\n\n address gemJoin,\n\n address daiJoin,\n\n uint cdp,\n\n uint wadC,\n\n uint wadD,\n\n bool transferFrom\n\n ) public {\n\n address urn = ManagerLike(manager).urns(cdp);\n\n address vat = ManagerLike(manager).vat();\n\n bytes32 ilk = ManagerLike(manager).ilks(cdp);\n\n // Takes token amount from user's wallet and joins into the vat\n\n gemJoin_join(gemJoin, urn, wadC, transferFrom);\n\n // Locks token amount into the CDP and generates debt\n\n frob(manager, cdp, toInt(convertTo18(gemJoin, wadC)), _getDrawDart(vat, jug, urn, ilk, wadD));\n\n // Moves the DAI amount (balance in the vat in rad) to proxy's address\n\n move(manager, cdp, address(this), toRad(wadD));\n\n // Allows adapter to access to proxy's DAI balance in the vat\n\n if (VatLike(vat).can(address(this), address(daiJoin)) == 0) {\n\n VatLike(vat).hope(daiJoin);\n\n }\n\n // Exits DAI to the user's wallet as a token\n\n DaiJoinLike(daiJoin).exit(msg.sender, wadD);\n\n\n\n }\n\n\n\n function openLockGemAndDraw(\n\n address manager,\n\n address jug,\n\n address gemJoin,\n\n address daiJoin,\n\n bytes32 ilk,\n\n uint wadC,\n\n uint wadD,\n\n bool transferFrom\n\n ) public returns (uint cdp) {\n\n cdp = open(manager, ilk, address(this));\n\n lockGemAndDraw(manager, jug, gemJoin, daiJoin, cdp, wadC, wadD, transferFrom);\n\n\n\n emit CDPAction('openLockGemAndDraw', cdp, wadC, wadD);\n\n\n\n }\n\n\n\n function wipeAllAndFreeETH(\n\n address manager,\n\n address ethJoin,\n\n address daiJoin,\n\n uint cdp,\n\n uint wadC\n\n ) public {\n\n address vat = ManagerLike(manager).vat();\n\n address urn = ManagerLike(manager).urns(cdp);\n\n bytes32 ilk = ManagerLike(manager).ilks(cdp);\n\n (, uint art) = VatLike(vat).urns(ilk, urn);\n\n\n\n // Joins DAI amount into the vat\n\n daiJoin_join(daiJoin, urn, _getWipeAllWad(vat, urn, urn, ilk));\n\n // Paybacks debt to the CDP and unlocks WETH amount from it\n\n frob(\n\n manager,\n\n cdp,\n\n -toInt(wadC),\n\n -int(art)\n\n );\n\n // Moves the amount from the CDP urn to proxy's address\n\n flux(manager, cdp, address(this), wadC);\n\n // Exits WETH amount to proxy address as a token\n\n GemJoinLike(ethJoin).exit(address(this), wadC);\n\n // Converts WETH to ETH\n\n GemJoinLike(ethJoin).gem().withdraw(wadC);\n\n // Sends ETH back to the user's wallet\n\n msg.sender.transfer(wadC);\n\n\n\n emit CDPAction('wipeAllAndFreeETH', cdp, wadC, art);\n\n }\n\n\n\n function wipeAndFreeGem(\n\n address manager,\n\n address gemJoin,\n\n address daiJoin,\n\n uint cdp,\n\n uint wadC,\n\n uint wadD\n\n ) public {\n\n address urn = ManagerLike(manager).urns(cdp);\n\n // Joins DAI amount into the vat\n\n daiJoin_join(daiJoin, urn, wadD);\n\n uint wad18 = convertTo18(gemJoin, wadC);\n\n // Paybacks debt to the CDP and unlocks token amount from it\n\n frob(\n\n manager,\n\n cdp,\n\n -toInt(wad18),\n\n _getWipeDart(ManagerLike(manager).vat(), VatLike(ManagerLike(manager).vat()).dai(urn), urn, ManagerLike(manager).ilks(cdp))\n\n );\n\n // Moves the amount from the CDP urn to proxy's address\n\n flux(manager, cdp, address(this), wad18);\n\n // Exits token amount to the user's wallet as a token\n\n GemJoinLike(gemJoin).exit(msg.sender, wadC);\n\n }\n\n\n\n function wipeAllAndFreeGem(\n\n address manager,\n\n address gemJoin,\n\n address daiJoin,\n\n uint cdp,\n\n uint wadC\n\n ) public {\n\n address vat = ManagerLike(manager).vat();\n\n address urn = ManagerLike(manager).urns(cdp);\n\n bytes32 ilk = ManagerLike(manager).ilks(cdp);\n\n (, uint art) = VatLike(vat).urns(ilk, urn);\n\n\n\n // Joins DAI amount into the vat\n\n daiJoin_join(daiJoin, urn, _getWipeAllWad(vat, urn, urn, ilk));\n\n uint wad18 = convertTo18(gemJoin, wadC);\n\n // Paybacks debt to the CDP and unlocks token amount from it\n\n frob(\n\n manager,\n\n cdp,\n\n -toInt(wad18),\n\n -int(art)\n\n );\n\n // Moves the amount from the CDP urn to proxy's address\n\n flux(manager, cdp, address(this), wad18);\n\n // Exits token amount to the user's wallet as a token\n\n GemJoinLike(gemJoin).exit(msg.sender, wadC);\n\n\n\n emit CDPAction('wipeAllAndFreeGem', cdp, wadC, art);\n\n }\n\n\n\n function createProxyAndCDP(\n\n address manager,\n\n address jug,\n\n address ethJoin,\n\n address daiJoin,\n\n bytes32 ilk,\n\n uint wadD,\n\n address registry\n\n ) public payable returns(uint) {\n\n\n\n address proxy = ProxyRegistryInterface(registry).build(msg.sender);\n\n\n\n uint cdp = openLockETHAndDraw(manager,\n\n jug,\n\n ethJoin,\n\n daiJoin,\n\n ilk,\n\n wadD\n\n );\n\n\n\n give(manager, cdp, address(proxy));\n\n\n\n return cdp;\n\n\n\n }\n\n\n\n function createProxyAndGemCDP(\n\n address manager,\n\n address jug,\n\n address gemJoin,\n\n address daiJoin,\n\n bytes32 ilk,\n\n uint wadC,\n\n uint wadD,\n\n bool transferFrom,\n\n address registry\n\n ) public returns(uint) {\n\n\n\n\n\n address proxy = ProxyRegistryInterface(registry).build(msg.sender);\n\n\n\n uint cdp = openLockGemAndDraw(manager,\n\n jug,\n\n gemJoin,\n\n daiJoin,\n\n ilk,\n\n wadC,\n\n wadD,\n\n transferFrom);\n\n\n\n give(manager, cdp, address(proxy));\n\n\n\n return cdp;\n\n }\n\n}\n\ncontract MCDSaverProxyHelper is DSMath {\n\n\n\n /// @notice Returns a normalized debt _amount based on the current rate\n\n /// @param _amount Amount of dai to be normalized\n\n /// @param _rate Current rate of the stability fee\n\n /// @param _daiVatBalance Balance od Dai in the Vat for that CDP\n\n function normalizeDrawAmount(uint _amount, uint _rate, uint _daiVatBalance) internal pure returns (int dart) {\n\n if (_daiVatBalance < mul(_amount, RAY)) {\n\n dart = toPositiveInt(sub(mul(_amount, RAY), _daiVatBalance) / _rate);\n\n dart = mul(uint(dart), _rate) < mul(_amount, RAY) ? dart + 1 : dart;\n\n }\n\n }\n\n\n\n /// @notice Converts a number to Rad percision\n\n /// @param _wad The input number in wad percision\n\n function toRad(uint _wad) internal pure returns (uint) {\n\n return mul(_wad, 10 ** 27);\n\n }\n\n\n\n /// @notice Converts a number to 18 decimal percision\n\n /// @param _joinAddr Join address of the collateral\n\n /// @param _amount Number to be converted\n\n function convertTo18(address _joinAddr, uint256 _amount) internal view returns (uint256) {\n\n return mul(_amount, 10 ** (18 - Join(_joinAddr).dec()));\n\n }\n\n\n\n /// @notice Converts a uint to int and checks if positive\n\n /// @param _x Number to be converted\n\n function toPositiveInt(uint _x) internal pure returns (int y) {\n\n y = int(_x);\n\n require(y >= 0, \"int-overflow\");\n\n }\n\n\n\n /// @notice Gets Dai amount in Vat which can be added to Cdp\n\n /// @param _vat Address of Vat contract\n\n /// @param _urn Urn of the Cdp\n\n /// @param _ilk Ilk of the Cdp\n\n function normalizePaybackAmount(address _vat, address _urn, bytes32 _ilk) internal view returns (int amount) {\n\n uint dai = Vat(_vat).dai(_urn);\n\n\n\n (, uint rate,,,) = Vat(_vat).ilks(_ilk);\n\n (, uint art) = Vat(_vat).urns(_ilk, _urn);\n\n\n\n amount = toPositiveInt(dai / rate);\n\n amount = uint(amount) <= art ? - amount : - toPositiveInt(art);\n\n }\n\n\n\n /// @notice Gets the whole debt of the CDP\n\n /// @param _vat Address of Vat contract\n\n /// @param _usr Address of the Dai holder\n\n /// @param _urn Urn of the Cdp\n\n /// @param _ilk Ilk of the Cdp\n\n function getAllDebt(address _vat, address _usr, address _urn, bytes32 _ilk) internal view returns (uint daiAmount) {\n\n (, uint rate,,,) = Vat(_vat).ilks(_ilk);\n\n (, uint art) = Vat(_vat).urns(_ilk, _urn);\n\n uint dai = Vat(_vat).dai(_usr);\n\n\n\n uint rad = sub(mul(art, rate), dai);\n\n daiAmount = rad / RAY;\n\n\n\n daiAmount = mul(daiAmount, RAY) < rad ? daiAmount + 1 : daiAmount;\n\n }\n\n\n\n /// @notice Gets the token address from the Join contract\n\n /// @param _joinAddr Address of the Join contract\n\n function getCollateralAddr(address _joinAddr) internal view returns (address) {\n\n return address(Join(_joinAddr).gem());\n\n }\n\n\n\n /// @notice Gets CDP info (collateral, debt)\n\n /// @param _manager Manager contract\n\n /// @param _cdpId Id of the CDP\n\n /// @param _ilk Ilk of the CDP\n\n function getCdpInfo(Manager _manager, uint _cdpId, bytes32 _ilk) public view returns (uint, uint) {\n\n address vat = _manager.vat();\n\n address urn = _manager.urns(_cdpId);\n\n\n\n (uint collateral, uint debt) = Vat(vat).urns(_ilk, urn);\n\n (,uint rate,,,) = Vat(vat).ilks(_ilk);\n\n\n\n return (collateral, rmul(debt, rate));\n\n }\n\n\n\n /// @notice Address that owns the DSProxy that owns the CDP\n\n /// @param _manager Manager contract\n\n /// @param _cdpId Id of the CDP\n\n function getOwner(Manager _manager, uint _cdpId) public view returns (address) {\n\n DSProxy proxy = DSProxy(uint160(_manager.owns(_cdpId)));\n\n\n\n return proxy.owner();\n\n }\n\n}\n\nabstract contract ILendingPool {\n\n function flashLoan( address payable _receiver, address _reserve, uint _amount, bytes calldata _params) external virtual;\n\n}\n\nabstract contract ProtocolInterface {\n\n function deposit(address _user, uint256 _amount) public virtual;\n\n\n\n function withdraw(address _user, uint256 _amount) public virtual;\n\n}\n\ncontract SavingsLogger {\n\n event Deposit(address indexed sender, uint8 protocol, uint256 amount);\n\n event Withdraw(address indexed sender, uint8 protocol, uint256 amount);\n\n event Swap(address indexed sender, uint8 fromProtocol, uint8 toProtocol, uint256 amount);\n\n\n\n function logDeposit(address _sender, uint8 _protocol, uint256 _amount) external {\n\n emit Deposit(_sender, _protocol, _amount);\n\n }\n\n\n\n function logWithdraw(address _sender, uint8 _protocol, uint256 _amount) external {\n\n emit Withdraw(_sender, _protocol, _amount);\n\n }\n\n\n\n function logSwap(address _sender, uint8 _protocolFrom, uint8 _protocolTo, uint256 _amount)\n\n external\n\n {\n\n emit Swap(_sender, _protocolFrom, _protocolTo, _amount);\n\n }\n\n}\n\ncontract AaveSavingsProtocol is ProtocolInterface, DSAuth {\n\n\n\n address public constant ADAI_ADDRESS = 0xfC1E690f61EFd961294b3e1Ce3313fBD8aa4f85d;\n\n address public constant AAVE_LENDING_POOL = 0x398eC7346DcD622eDc5ae82352F02bE94C62d119;\n\n address public constant AAVE_LENDING_POOL_CORE = 0x3dfd23A6c5E8BbcFc9581d2E864a68feb6a076d3;\n\n address public constant DAI_ADDRESS = 0x6B175474E89094C44Da98b954EedeAC495271d0F;\n\n\n\n function deposit(address _user, uint _amount) public override {\n\n require(msg.sender == _user);\n\n // get dai from user\n\n require(ERC20(DAI_ADDRESS).transferFrom(_user, address(this), _amount));\n\n\n\n ERC20(DAI_ADDRESS).approve(AAVE_LENDING_POOL_CORE, uint(-1));\n\n ILendingPool(AAVE_LENDING_POOL).deposit(DAI_ADDRESS, _amount, 0);\n\n\n\n ERC20(ADAI_ADDRESS).transfer(_user, ERC20(ADAI_ADDRESS).balanceOf(address(this)));\n\n }\n\n\n\n function withdraw(address _user, uint _amount) public override {\n\n require(msg.sender == _user);\n\n require(ERC20(ADAI_ADDRESS).transferFrom(_user, address(this), _amount));\n\n\n\n IAToken(ADAI_ADDRESS).redeem(_amount);\n\n\n\n // return dai we have to user\n\n ERC20(DAI_ADDRESS).transfer(_user, _amount);\n\n }\n\n}\n\ncontract CompoundSavingsProtocol {\n\n\n\n address public constant NEW_CDAI_ADDRESS = 0x5d3a536E4D6DbD6114cc1Ead35777bAB948E3643;\n\n address public constant DAI_ADDRESS = 0x6B175474E89094C44Da98b954EedeAC495271d0F;\n\n\n\n CTokenInterface public constant cDaiContract = CTokenInterface(NEW_CDAI_ADDRESS);\n\n\n\n function compDeposit(address _user, uint _amount) internal {\n\n // get dai from user\n\n require(ERC20(DAI_ADDRESS).transferFrom(_user, address(this), _amount));\n\n\n\n // mainnet only\n\n ERC20(DAI_ADDRESS).approve(NEW_CDAI_ADDRESS, uint(-1));\n\n\n\n // mint cDai\n\n require(cDaiContract.mint(_amount) == 0, \"Failed Mint\");\n\n }\n\n\n\n function compWithdraw(address _user, uint _amount) internal {\n\n // transfer all users balance to this contract\n\n require(cDaiContract.transferFrom(_user, address(this), ERC20(NEW_CDAI_ADDRESS).balanceOf(_user)));\n\n\n\n // approve cDai to compound contract\n\n cDaiContract.approve(NEW_CDAI_ADDRESS, uint(-1));\n\n // get dai from cDai contract\n\n require(cDaiContract.redeemUnderlying(_amount) == 0, \"Reedem Failed\");\n\n\n\n // return to user balance we didn't spend\n\n uint cDaiBalance = cDaiContract.balanceOf(address(this));\n\n if (cDaiBalance > 0) {\n\n cDaiContract.transfer(_user, cDaiBalance);\n\n }\n\n // return dai we have to user\n\n ERC20(DAI_ADDRESS).transfer(_user, _amount);\n\n }\n\n}\n\nabstract contract VatLike {\n\n function can(address, address) virtual public view returns (uint);\n\n function ilks(bytes32) virtual public view returns (uint, uint, uint, uint, uint);\n\n function dai(address) virtual public view returns (uint);\n\n function urns(bytes32, address) virtual public view returns (uint, uint);\n\n function frob(bytes32, address, address, address, int, int) virtual public;\n\n function hope(address) virtual public;\n\n function move(address, address, uint) virtual public;\n\n}\n\nabstract contract PotLike {\n\n function pie(address) virtual public view returns (uint);\n\n function drip() virtual public returns (uint);\n\n function join(uint) virtual public;\n\n function exit(uint) virtual public;\n\n}\n\nabstract contract GemLike {\n\n function approve(address, uint) virtual public;\n\n function transfer(address, uint) virtual public;\n\n function transferFrom(address, address, uint) virtual public;\n\n function deposit() virtual public payable;\n\n function withdraw(uint) virtual public;\n\n}\n\nabstract contract DaiJoinLike {\n\n function vat() virtual public returns (VatLike);\n\n function dai() virtual public returns (GemLike);\n\n function join(address, uint) virtual public payable;\n\n function exit(address, uint) virtual public;\n\n}\n\ncontract DSRSavingsProtocol is DSMath {\n\n\n\n // Mainnet\n\n address public constant POT_ADDRESS = 0x197E90f9FAD81970bA7976f33CbD77088E5D7cf7;\n\n address public constant DAI_JOIN_ADDRESS = 0x9759A6Ac90977b93B58547b4A71c78317f391A28;\n\n\n\n function dsrDeposit(uint _amount, bool _fromUser) internal {\n\n VatLike vat = DaiJoinLike(DAI_JOIN_ADDRESS).vat();\n\n\n\n uint chi = PotLike(POT_ADDRESS).drip();\n\n\n\n daiJoin_join(DAI_JOIN_ADDRESS, address(this), _amount, _fromUser);\n\n\n\n if (vat.can(address(this), address(POT_ADDRESS)) == 0) {\n\n vat.hope(POT_ADDRESS);\n\n }\n\n\n\n PotLike(POT_ADDRESS).join(mul(_amount, RAY) / chi);\n\n }\n\n\n\n function dsrWithdraw(uint _amount, bool _toUser) internal {\n\n VatLike vat = DaiJoinLike(DAI_JOIN_ADDRESS).vat();\n\n\n\n uint chi = PotLike(POT_ADDRESS).drip();\n\n uint pie = mul(_amount, RAY) / chi;\n\n\n\n PotLike(POT_ADDRESS).exit(pie);\n\n uint balance = DaiJoinLike(DAI_JOIN_ADDRESS).vat().dai(address(this));\n\n\n\n if (vat.can(address(this), address(DAI_JOIN_ADDRESS)) == 0) {\n\n vat.hope(DAI_JOIN_ADDRESS);\n\n }\n\n\n\n address to;\n\n if (_toUser) {\n\n to = msg.sender;\n\n } else {\n\n to = address(this);\n\n }\n\n\n\n if (_amount == uint(-1)) {\n\n DaiJoinLike(DAI_JOIN_ADDRESS).exit(to, mul(chi, pie) / RAY);\n\n } else {\n\n DaiJoinLike(DAI_JOIN_ADDRESS).exit(\n\n to,\n\n balance >= mul(_amount, RAY) ? _amount : balance / RAY\n\n );\n\n }\n\n }\n\n\n\n function daiJoin_join(address apt, address urn, uint wad, bool _fromUser) internal {\n\n if (_fromUser) {\n\n DaiJoinLike(apt).dai().transferFrom(msg.sender, address(this), wad);\n\n }\n\n\n\n DaiJoinLike(apt).dai().approve(apt, wad);\n\n\n\n DaiJoinLike(apt).join(urn, wad);\n\n }\n\n}\n\ncontract DydxSavingsProtocol is ProtocolInterface, DSAuth {\n\n address public constant SOLO_MARGIN_ADDRESS = 0x1E0447b19BB6EcFdAe1e4AE1694b0C3659614e4e;\n\n\n\n ISoloMargin public soloMargin;\n\n address public savingsProxy;\n\n\n\n uint daiMarketId = 3;\n\n\n\n constructor() public {\n\n soloMargin = ISoloMargin(SOLO_MARGIN_ADDRESS);\n\n }\n\n\n\n function addSavingsProxy(address _savingsProxy) public auth {\n\n savingsProxy = _savingsProxy;\n\n }\n\n\n\n function deposit(address _user, uint _amount) public override {\n\n require(msg.sender == _user);\n\n\n\n Account.Info[] memory accounts = new Account.Info[](1);\n\n accounts[0] = getAccount(_user, 0);\n\n\n\n Actions.ActionArgs[] memory actions = new Actions.ActionArgs[](1);\n\n Types.AssetAmount memory amount = Types.AssetAmount({\n\n sign: true,\n\n denomination: Types.AssetDenomination.Wei,\n\n ref: Types.AssetReference.Delta,\n\n value: _amount\n\n });\n\n\n\n actions[0] = Actions.ActionArgs({\n\n actionType: Actions.ActionType.Deposit,\n\n accountId: 0,\n\n amount: amount,\n\n primaryMarketId: daiMarketId,\n\n otherAddress: _user,\n\n secondaryMarketId: 0, //not used\n\n otherAccountId: 0, //not used\n\n data: \"\" //not used\n\n });\n\n\n\n soloMargin.operate(accounts, actions);\n\n }\n\n\n\n function withdraw(address _user, uint _amount) public override {\n\n require(msg.sender == _user);\n\n\n\n Account.Info[] memory accounts = new Account.Info[](1);\n\n accounts[0] = getAccount(_user, 0);\n\n\n\n Actions.ActionArgs[] memory actions = new Actions.ActionArgs[](1);\n\n Types.AssetAmount memory amount = Types.AssetAmount({\n\n sign: false,\n\n denomination: Types.AssetDenomination.Wei,\n\n ref: Types.AssetReference.Delta,\n\n value: _amount\n\n });\n\n\n\n actions[0] = Actions.ActionArgs({\n\n actionType: Actions.ActionType.Withdraw,\n\n accountId: 0,\n\n amount: amount,\n\n primaryMarketId: daiMarketId,\n\n otherAddress: _user,\n\n secondaryMarketId: 0, //not used\n\n otherAccountId: 0, //not used\n\n data: \"\" //not used\n\n });\n\n\n\n soloMargin.operate(accounts, actions);\n\n }\n\n\n\n function getWeiBalance(address _user, uint _index) public view returns(Types.Wei memory) {\n\n\n\n Types.Wei[] memory weiBalances;\n\n (,,weiBalances) = soloMargin.getAccountBalances(getAccount(_user, _index));\n\n\n\n return weiBalances[daiMarketId];\n\n }\n\n\n\n function getParBalance(address _user, uint _index) public view returns(Types.Par memory) {\n\n Types.Par[] memory parBalances;\n\n (,parBalances,) = soloMargin.getAccountBalances(getAccount(_user, _index));\n\n\n\n return parBalances[daiMarketId];\n\n }\n\n\n\n function getAccount(address _user, uint _index) public pure returns(Account.Info memory) {\n\n Account.Info memory account = Account.Info({\n\n owner: _user,\n\n number: _index\n\n });\n\n\n\n return account;\n\n }\n\n}\n\nabstract contract ISoloMargin {\n\n struct OperatorArg {\n\n address operator;\n\n bool trusted;\n\n }\n\n\n\n function operate(\n\n Account.Info[] memory accounts,\n\n Actions.ActionArgs[] memory actions\n\n ) public virtual;\n\n\n\n function getAccountBalances(\n\n Account.Info memory account\n\n ) public view virtual returns (\n\n address[] memory,\n\n Types.Par[] memory,\n\n Types.Wei[] memory\n\n );\n\n\n\n function setOperators(\n\n OperatorArg[] memory args\n\n ) public virtual;\n\n\n\n\n\n function getNumMarkets() public view virtual returns (uint256);\n\n\n\n function getMarketTokenAddress(uint256 marketId)\n\n public\n\n view\n\n virtual\n\n returns (address);\n\n}\n\nlibrary Account {\n\n // ============ Enums ============\n\n\n\n /*\n\n * Most-recently-cached account status.\n\n *\n\n * Normal: Can only be liquidated if the account values are violating the global margin-ratio.\n\n * Liquid: Can be liquidated no matter the account values.\n\n * Can be vaporized if there are no more positive account values.\n\n * Vapor: Has only negative (or zeroed) account values. Can be vaporized.\n\n *\n\n */\n\n enum Status {\n\n Normal,\n\n Liquid,\n\n Vapor\n\n }\n\n\n\n // ============ Structs ============\n\n\n\n // Represents the unique key that specifies an account\n\n struct Info {\n\n address owner; // The address that owns the account\n\n uint256 number; // A nonce that allows a single address to control many accounts\n\n }\n\n\n\n // The complete storage for any account\n\n struct Storage {\n\n mapping (uint256 => Types.Par) balances; // Mapping from marketId to principal\n\n Status status;\n\n }\n\n\n\n // ============ Library Functions ============\n\n\n\n function equals(\n\n Info memory a,\n\n Info memory b\n\n )\n\n internal\n\n pure\n\n returns (bool)\n\n {\n\n return a.owner == b.owner && a.number == b.number;\n\n }\n\n}\n\nlibrary Actions {\n\n\n\n // ============ Constants ============\n\n\n\n bytes32 constant FILE = \"Actions\";\n\n\n\n // ============ Enums ============\n\n\n\n enum ActionType {\n\n Deposit, // supply tokens\n\n Withdraw, // borrow tokens\n\n Transfer, // transfer balance between accounts\n\n Buy, // buy an amount of some token (externally)\n\n Sell, // sell an amount of some token (externally)\n\n Trade, // trade tokens against another account\n\n Liquidate, // liquidate an undercollateralized or expiring account\n\n Vaporize, // use excess tokens to zero-out a completely negative account\n\n Call // send arbitrary data to an address\n\n }\n\n\n\n enum AccountLayout {\n\n OnePrimary,\n\n TwoPrimary,\n\n PrimaryAndSecondary\n\n }\n\n\n\n enum MarketLayout {\n\n ZeroMarkets,\n\n OneMarket,\n\n TwoMarkets\n\n }\n\n\n\n // ============ Structs ============\n\n\n\n /*\n\n * Arguments that are passed to Solo in an ordered list as part of a single operation.\n\n * Each ActionArgs has an actionType which specifies which action struct that this data will be\n\n * parsed into before being processed.\n\n */\n\n struct ActionArgs {\n\n ActionType actionType;\n\n uint256 accountId;\n\n Types.AssetAmount amount;\n\n uint256 primaryMarketId;\n\n uint256 secondaryMarketId;\n\n address otherAddress;\n\n uint256 otherAccountId;\n\n bytes data;\n\n }\n\n\n\n // ============ Action Types ============\n\n\n\n /*\n\n * Moves tokens from an address to Solo. Can either repay a borrow or provide additional supply.\n\n */\n\n struct DepositArgs {\n\n Types.AssetAmount amount;\n\n Account.Info account;\n\n uint256 market;\n\n address from;\n\n }\n\n\n\n /*\n\n * Moves tokens from Solo to another address. Can either borrow tokens or reduce the amount\n\n * previously supplied.\n\n */\n\n struct WithdrawArgs {\n\n Types.AssetAmount amount;\n\n Account.Info account;\n\n uint256 market;\n\n address to;\n\n }\n\n\n\n /*\n\n * Transfers balance between two accounts. The msg.sender must be an operator for both accounts.\n\n * The amount field applies to accountOne.\n\n * This action does not require any token movement since the trade is done internally to Solo.\n\n */\n\n struct TransferArgs {\n\n Types.AssetAmount amount;\n\n Account.Info accountOne;\n\n Account.Info accountTwo;\n\n uint256 market;\n\n }\n\n\n\n /*\n\n * Acquires a certain amount of tokens by spending other tokens. Sends takerMarket tokens to the\n\n * specified exchangeWrapper contract and expects makerMarket tokens in return. The amount field\n\n * applies to the makerMarket.\n\n */\n\n struct BuyArgs {\n\n Types.AssetAmount amount;\n\n Account.Info account;\n\n uint256 makerMarket;\n\n uint256 takerMarket;\n\n address exchangeWrapper;\n\n bytes orderData;\n\n }\n\n\n\n /*\n\n * Spends a certain amount of tokens to acquire other tokens. Sends takerMarket tokens to the\n\n * specified exchangeWrapper and expects makerMarket tokens in return. The amount field applies\n\n * to the takerMarket.\n\n */\n\n struct SellArgs {\n\n Types.AssetAmount amount;\n\n Account.Info account;\n\n uint256 takerMarket;\n\n uint256 makerMarket;\n\n address exchangeWrapper;\n\n bytes orderData;\n\n }\n\n\n\n /*\n\n * Trades balances between two accounts using any external contract that implements the\n\n * AutoTrader interface. The AutoTrader contract must be an operator for the makerAccount (for\n\n * which it is trading on-behalf-of). The amount field applies to the makerAccount and the\n\n * inputMarket. This proposed change to the makerAccount is passed to the AutoTrader which will\n\n * quote a change for the makerAccount in the outputMarket (or will disallow the trade).\n\n * This action does not require any token movement since the trade is done internally to Solo.\n\n */\n\n struct TradeArgs {\n\n Types.AssetAmount amount;\n\n Account.Info takerAccount;\n\n Account.Info makerAccount;\n\n uint256 inputMarket;\n\n uint256 outputMarket;\n\n address autoTrader;\n\n bytes tradeData;\n\n }\n\n\n\n /*\n\n * Each account must maintain a certain margin-ratio (specified globally). If the account falls\n\n * below this margin-ratio, it can be liquidated by any other account. This allows anyone else\n\n * (arbitrageurs) to repay any borrowed asset (owedMarket) of the liquidating account in\n\n * exchange for any collateral asset (heldMarket) of the liquidAccount. The ratio is determined\n\n * by the price ratio (given by the oracles) plus a spread (specified globally). Liquidating an\n\n * account also sets a flag on the account that the account is being liquidated. This allows\n\n * anyone to continue liquidating the account until there are no more borrows being taken by the\n\n * liquidating account. Liquidators do not have to liquidate the entire account all at once but\n\n * can liquidate as much as they choose. The liquidating flag allows liquidators to continue\n\n * liquidating the account even if it becomes collateralized through partial liquidation or\n\n * price movement.\n\n */\n\n struct LiquidateArgs {\n\n Types.AssetAmount amount;\n\n Account.Info solidAccount;\n\n Account.Info liquidAccount;\n\n uint256 owedMarket;\n\n uint256 heldMarket;\n\n }\n\n\n\n /*\n\n * Similar to liquidate, but vaporAccounts are accounts that have only negative balances\n\n * remaining. The arbitrageur pays back the negative asset (owedMarket) of the vaporAccount in\n\n * exchange for a collateral asset (heldMarket) at a favorable spread. However, since the\n\n * liquidAccount has no collateral assets, the collateral must come from Solo's excess tokens.\n\n */\n\n struct VaporizeArgs {\n\n Types.AssetAmount amount;\n\n Account.Info solidAccount;\n\n Account.Info vaporAccount;\n\n uint256 owedMarket;\n\n uint256 heldMarket;\n\n }\n\n\n\n /*\n\n * Passes arbitrary bytes of data to an external contract that implements the Callee interface.\n\n * Does not change any asset amounts. This function may be useful for setting certain variables\n\n * on layer-two contracts for certain accounts without having to make a separate Ethereum\n\n * transaction for doing so. Also, the second-layer contracts can ensure that the call is coming\n\n * from an operator of the particular account.\n\n */\n\n struct CallArgs {\n\n Account.Info account;\n\n address callee;\n\n bytes data;\n\n }\n\n\n\n // ============ Helper Functions ============\n\n\n\n function getMarketLayout(\n\n ActionType actionType\n\n )\n\n internal\n\n pure\n\n returns (MarketLayout)\n\n {\n\n if (\n\n actionType == Actions.ActionType.Deposit\n\n || actionType == Actions.ActionType.Withdraw\n\n || actionType == Actions.ActionType.Transfer\n\n ) {\n\n return MarketLayout.OneMarket;\n\n }\n\n else if (actionType == Actions.ActionType.Call) {\n\n return MarketLayout.ZeroMarkets;\n\n }\n\n return MarketLayout.TwoMarkets;\n\n }\n\n\n\n function getAccountLayout(\n\n ActionType actionType\n\n )\n\n internal\n\n pure\n\n returns (AccountLayout)\n\n {\n\n if (\n\n actionType == Actions.ActionType.Transfer\n\n || actionType == Actions.ActionType.Trade\n\n ) {\n\n return AccountLayout.TwoPrimary;\n\n } else if (\n\n actionType == Actions.ActionType.Liquidate\n\n || actionType == Actions.ActionType.Vaporize\n\n ) {\n\n return AccountLayout.PrimaryAndSecondary;\n\n }\n\n return AccountLayout.OnePrimary;\n\n }\n\n\n\n // ============ Parsing Functions ============\n\n\n\n function parseDepositArgs(\n\n Account.Info[] memory accounts,\n\n ActionArgs memory args\n\n )\n\n internal\n\n pure\n\n returns (DepositArgs memory)\n\n {\n\n assert(args.actionType == ActionType.Deposit);\n\n return DepositArgs({\n\n amount: args.amount,\n\n account: accounts[args.accountId],\n\n market: args.primaryMarketId,\n\n from: args.otherAddress\n\n });\n\n }\n\n\n\n function parseWithdrawArgs(\n\n Account.Info[] memory accounts,\n\n ActionArgs memory args\n\n )\n\n internal\n\n pure\n\n returns (WithdrawArgs memory)\n\n {\n\n assert(args.actionType == ActionType.Withdraw);\n\n return WithdrawArgs({\n\n amount: args.amount,\n\n account: accounts[args.accountId],\n\n market: args.primaryMarketId,\n\n to: args.otherAddress\n\n });\n\n }\n\n\n\n function parseTransferArgs(\n\n Account.Info[] memory accounts,\n\n ActionArgs memory args\n\n )\n\n internal\n\n pure\n\n returns (TransferArgs memory)\n\n {\n\n assert(args.actionType == ActionType.Transfer);\n\n return TransferArgs({\n\n amount: args.amount,\n\n accountOne: accounts[args.accountId],\n\n accountTwo: accounts[args.otherAccountId],\n\n market: args.primaryMarketId\n\n });\n\n }\n\n\n\n function parseBuyArgs(\n\n Account.Info[] memory accounts,\n\n ActionArgs memory args\n\n )\n\n internal\n\n pure\n\n returns (BuyArgs memory)\n\n {\n\n assert(args.actionType == ActionType.Buy);\n\n return BuyArgs({\n\n amount: args.amount,\n\n account: accounts[args.accountId],\n\n makerMarket: args.primaryMarketId,\n\n takerMarket: args.secondaryMarketId,\n\n exchangeWrapper: args.otherAddress,\n\n orderData: args.data\n\n });\n\n }\n\n\n\n function parseSellArgs(\n\n Account.Info[] memory accounts,\n\n ActionArgs memory args\n\n )\n\n internal\n\n pure\n\n returns (SellArgs memory)\n\n {\n\n assert(args.actionType == ActionType.Sell);\n\n return SellArgs({\n\n amount: args.amount,\n\n account: accounts[args.accountId],\n\n takerMarket: args.primaryMarketId,\n\n makerMarket: args.secondaryMarketId,\n\n exchangeWrapper: args.otherAddress,\n\n orderData: args.data\n\n });\n\n }\n\n\n\n function parseTradeArgs(\n\n Account.Info[] memory accounts,\n\n ActionArgs memory args\n\n )\n\n internal\n\n pure\n\n returns (TradeArgs memory)\n\n {\n\n assert(args.actionType == ActionType.Trade);\n\n return TradeArgs({\n\n amount: args.amount,\n\n takerAccount: accounts[args.accountId],\n\n makerAccount: accounts[args.otherAccountId],\n\n inputMarket: args.primaryMarketId,\n\n outputMarket: args.secondaryMarketId,\n\n autoTrader: args.otherAddress,\n\n tradeData: args.data\n\n });\n\n }\n\n\n\n function parseLiquidateArgs(\n\n Account.Info[] memory accounts,\n\n ActionArgs memory args\n\n )\n\n internal\n\n pure\n\n returns (LiquidateArgs memory)\n\n {\n\n assert(args.actionType == ActionType.Liquidate);\n\n return LiquidateArgs({\n\n amount: args.amount,\n\n solidAccount: accounts[args.accountId],\n\n liquidAccount: accounts[args.otherAccountId],\n\n owedMarket: args.primaryMarketId,\n\n heldMarket: args.secondaryMarketId\n\n });\n\n }\n\n\n\n function parseVaporizeArgs(\n\n Account.Info[] memory accounts,\n\n ActionArgs memory args\n\n )\n\n internal\n\n pure\n\n returns (VaporizeArgs memory)\n\n {\n\n assert(args.actionType == ActionType.Vaporize);\n\n return VaporizeArgs({\n\n amount: args.amount,\n\n solidAccount: accounts[args.accountId],\n\n vaporAccount: accounts[args.otherAccountId],\n\n owedMarket: args.primaryMarketId,\n\n heldMarket: args.secondaryMarketId\n\n });\n\n }\n\n\n\n function parseCallArgs(\n\n Account.Info[] memory accounts,\n\n ActionArgs memory args\n\n )\n\n internal\n\n pure\n\n returns (CallArgs memory)\n\n {\n\n assert(args.actionType == ActionType.Call);\n\n return CallArgs({\n\n account: accounts[args.accountId],\n\n callee: args.otherAddress,\n\n data: args.data\n\n });\n\n }\n\n}\n\nlibrary Math {\n\n using SafeMath for uint256;\n\n\n\n // ============ Constants ============\n\n\n\n bytes32 constant FILE = \"Math\";\n\n\n\n // ============ Library Functions ============\n\n\n\n /*\n\n * Return target * (numerator / denominator).\n\n */\n\n function getPartial(\n\n uint256 target,\n\n uint256 numerator,\n\n uint256 denominator\n\n )\n\n internal\n\n pure\n\n returns (uint256)\n\n {\n\n return target.mul(numerator).div(denominator);\n\n }\n\n\n\n /*\n\n * Return target * (numerator / denominator), but rounded up.\n\n */\n\n function getPartialRoundUp(\n\n uint256 target,\n\n uint256 numerator,\n\n uint256 denominator\n\n )\n\n internal\n\n pure\n\n returns (uint256)\n\n {\n\n if (target == 0 || numerator == 0) {\n\n // SafeMath will check for zero denominator\n\n return SafeMath.div(0, denominator);\n\n }\n\n return target.mul(numerator).sub(1).div(denominator).add(1);\n\n }\n\n\n\n function to128(\n\n uint256 number\n\n )\n\n internal\n\n pure\n\n returns (uint128)\n\n {\n\n uint128 result = uint128(number);\n\n Require.that(\n\n result == number,\n\n FILE,\n\n \"Unsafe cast to uint128\"\n\n );\n\n return result;\n\n }\n\n\n\n function to96(\n\n uint256 number\n\n )\n\n internal\n\n pure\n\n returns (uint96)\n\n {\n\n uint96 result = uint96(number);\n\n Require.that(\n\n result == number,\n\n FILE,\n\n \"Unsafe cast to uint96\"\n\n );\n\n return result;\n\n }\n\n\n\n function to32(\n\n uint256 number\n\n )\n\n internal\n\n pure\n\n returns (uint32)\n\n {\n\n uint32 result = uint32(number);\n\n Require.that(\n\n result == number,\n\n FILE,\n\n \"Unsafe cast to uint32\"\n\n );\n\n return result;\n\n }\n\n\n\n function min(\n\n uint256 a,\n\n uint256 b\n\n )\n\n internal\n\n pure\n\n returns (uint256)\n\n {\n\n return a < b ? a : b;\n\n }\n\n\n\n function max(\n\n uint256 a,\n\n uint256 b\n\n )\n\n internal\n\n pure\n\n returns (uint256)\n\n {\n\n return a > b ? a : b;\n\n }\n\n}\n\nlibrary Require {\n\n\n\n // ============ Constants ============\n\n\n\n uint256 constant ASCII_ZERO = 48; // '0'\n\n uint256 constant ASCII_RELATIVE_ZERO = 87; // 'a' - 10\n\n uint256 constant ASCII_LOWER_EX = 120; // 'x'\n\n bytes2 constant COLON = 0x3a20; // ': '\n\n bytes2 constant COMMA = 0x2c20; // ', '\n\n bytes2 constant LPAREN = 0x203c; // ' <'\n\n byte constant RPAREN = 0x3e; // '>'\n\n uint256 constant FOUR_BIT_MASK = 0xf;\n\n\n\n // ============ Library Functions ============\n\n\n\n function that(\n\n bool must,\n\n bytes32 file,\n\n bytes32 reason\n\n )\n\n internal\n\n pure\n\n {\n\n if (!must) {\n\n revert(\n\n string(\n\n abi.encodePacked(\n\n stringifyTruncated(file),\n\n COLON,\n\n stringifyTruncated(reason)\n\n )\n\n )\n\n );\n\n }\n\n }\n\n\n\n function that(\n\n bool must,\n\n bytes32 file,\n\n bytes32 reason,\n\n uint256 payloadA\n\n )\n\n internal\n\n pure\n\n {\n\n if (!must) {\n\n revert(\n\n string(\n\n abi.encodePacked(\n\n stringifyTruncated(file),\n\n COLON,\n\n stringifyTruncated(reason),\n\n LPAREN,\n\n stringify(payloadA),\n\n RPAREN\n\n )\n\n )\n\n );\n\n }\n\n }\n\n\n\n function that(\n\n bool must,\n\n bytes32 file,\n\n bytes32 reason,\n\n uint256 payloadA,\n\n uint256 payloadB\n\n )\n\n internal\n\n pure\n\n {\n\n if (!must) {\n\n revert(\n\n string(\n\n abi.encodePacked(\n\n stringifyTruncated(file),\n\n COLON,\n\n stringifyTruncated(reason),\n\n LPAREN,\n\n stringify(payloadA),\n\n COMMA,\n\n stringify(payloadB),\n\n RPAREN\n\n )\n\n )\n\n );\n\n }\n\n }\n\n\n\n function that(\n\n bool must,\n\n bytes32 file,\n\n bytes32 reason,\n\n address payloadA\n\n )\n\n internal\n\n pure\n\n {\n\n if (!must) {\n\n revert(\n\n string(\n\n abi.encodePacked(\n\n stringifyTruncated(file),\n\n COLON,\n\n stringifyTruncated(reason),\n\n LPAREN,\n\n stringify(payloadA),\n\n RPAREN\n\n )\n\n )\n\n );\n\n }\n\n }\n\n\n\n function that(\n\n bool must,\n\n bytes32 file,\n\n bytes32 reason,\n\n address payloadA,\n\n uint256 payloadB\n\n )\n\n internal\n\n pure\n\n {\n\n if (!must) {\n\n revert(\n\n string(\n\n abi.encodePacked(\n\n stringifyTruncated(file),\n\n COLON,\n\n stringifyTruncated(reason),\n\n LPAREN,\n\n stringify(payloadA),\n\n COMMA,\n\n stringify(payloadB),\n\n RPAREN\n\n )\n\n )\n\n );\n\n }\n\n }\n\n\n\n function that(\n\n bool must,\n\n bytes32 file,\n\n bytes32 reason,\n\n address payloadA,\n\n uint256 payloadB,\n\n uint256 payloadC\n\n )\n\n internal\n\n pure\n\n {\n\n if (!must) {\n\n revert(\n\n string(\n\n abi.encodePacked(\n\n stringifyTruncated(file),\n\n COLON,\n\n stringifyTruncated(reason),\n\n LPAREN,\n\n stringify(payloadA),\n\n COMMA,\n\n stringify(payloadB),\n\n COMMA,\n\n stringify(payloadC),\n\n RPAREN\n\n )\n\n )\n\n );\n\n }\n\n }\n\n\n\n function that(\n\n bool must,\n\n bytes32 file,\n\n bytes32 reason,\n\n bytes32 payloadA\n\n )\n\n internal\n\n pure\n\n {\n\n if (!must) {\n\n revert(\n\n string(\n\n abi.encodePacked(\n\n stringifyTruncated(file),\n\n COLON,\n\n stringifyTruncated(reason),\n\n LPAREN,\n\n stringify(payloadA),\n\n RPAREN\n\n )\n\n )\n\n );\n\n }\n\n }\n\n\n\n function that(\n\n bool must,\n\n bytes32 file,\n\n bytes32 reason,\n\n bytes32 payloadA,\n\n uint256 payloadB,\n\n uint256 payloadC\n\n )\n\n internal\n\n pure\n\n {\n\n if (!must) {\n\n revert(\n\n string(\n\n abi.encodePacked(\n\n stringifyTruncated(file),\n\n COLON,\n\n stringifyTruncated(reason),\n\n LPAREN,\n\n stringify(payloadA),\n\n COMMA,\n\n stringify(payloadB),\n\n COMMA,\n\n stringify(payloadC),\n\n RPAREN\n\n )\n\n )\n\n );\n\n }\n\n }\n\n\n\n // ============ Private Functions ============\n\n\n\n function stringifyTruncated(\n\n bytes32 input\n\n )\n\n private\n\n pure\n\n returns (bytes memory)\n\n {\n\n // put the input bytes into the result\n\n bytes memory result = abi.encodePacked(input);\n\n\n\n // determine the length of the input by finding the location of the last non-zero byte\n\n for (uint256 i = 32; i > 0; ) {\n\n // reverse-for-loops with unsigned integer\n\n /* solium-disable-next-line security/no-modify-for-iter-var */\n\n i--;\n\n\n\n // find the last non-zero byte in order to determine the length\n\n if (result[i] != 0) {\n\n uint256 length = i + 1;\n\n\n\n /* solium-disable-next-line security/no-inline-assembly */\n\n assembly {\n\n mstore(result, length) // r.length = length;\n\n }\n\n\n\n return result;\n\n }\n\n }\n\n\n\n // all bytes are zero\n\n return new bytes(0);\n\n }\n\n\n\n function stringify(\n\n uint256 input\n\n )\n\n private\n\n pure\n\n returns (bytes memory)\n\n {\n\n if (input == 0) {\n\n return \"0\";\n\n }\n\n\n\n // get the final string length\n\n uint256 j = input;\n\n uint256 length;\n\n while (j != 0) {\n\n length++;\n\n j /= 10;\n\n }\n\n\n\n // allocate the string\n\n bytes memory bstr = new bytes(length);\n\n\n\n // populate the string starting with the least-significant character\n\n j = input;\n\n for (uint256 i = length; i > 0; ) {\n\n // reverse-for-loops with unsigned integer\n\n /* solium-disable-next-line security/no-modify-for-iter-var */\n\n i--;\n\n\n\n // take last decimal digit\n\n bstr[i] = byte(uint8(ASCII_ZERO + (j % 10)));\n\n\n\n // remove the last decimal digit\n\n j /= 10;\n\n }\n\n\n\n return bstr;\n\n }\n\n\n\n function stringify(\n\n address input\n\n )\n\n private\n\n pure\n\n returns (bytes memory)\n\n {\n\n uint256 z = uint256(input);\n\n\n\n // addresses are \"0x\" followed by 20 bytes of data which take up 2 characters each\n\n bytes memory result = new bytes(42);\n\n\n\n // populate the result with \"0x\"\n\n result[0] = byte(uint8(ASCII_ZERO));\n\n result[1] = byte(uint8(ASCII_LOWER_EX));\n\n\n\n // for each byte (starting from the lowest byte), populate the result with two characters\n\n for (uint256 i = 0; i < 20; i++) {\n\n // each byte takes two characters\n\n uint256 shift = i * 2;\n\n\n\n // populate the least-significant character\n\n result[41 - shift] = char(z & FOUR_BIT_MASK);\n\n z = z >> 4;\n\n\n\n // populate the most-significant character\n\n result[40 - shift] = char(z & FOUR_BIT_MASK);\n\n z = z >> 4;\n\n }\n\n\n\n return result;\n\n }\n\n\n\n function stringify(\n\n bytes32 input\n\n )\n\n private\n\n pure\n\n returns (bytes memory)\n\n {\n\n uint256 z = uint256(input);\n\n\n\n // bytes32 are \"0x\" followed by 32 bytes of data which take up 2 characters each\n\n bytes memory result = new bytes(66);\n\n\n\n // populate the result with \"0x\"\n\n result[0] = byte(uint8(ASCII_ZERO));\n\n result[1] = byte(uint8(ASCII_LOWER_EX));\n\n\n\n // for each byte (starting from the lowest byte), populate the result with two characters\n\n for (uint256 i = 0; i < 32; i++) {\n\n // each byte takes two characters\n\n uint256 shift = i * 2;\n\n\n\n // populate the least-significant character\n\n result[65 - shift] = char(z & FOUR_BIT_MASK);\n\n z = z >> 4;\n\n\n\n // populate the most-significant character\n\n result[64 - shift] = char(z & FOUR_BIT_MASK);\n\n z = z >> 4;\n\n }\n\n\n\n return result;\n\n }\n\n\n\n function char(\n\n uint256 input\n\n )\n\n private\n\n pure\n\n returns (byte)\n\n {\n\n // return ASCII digit (0-9)\n\n if (input < 10) {\n\n return byte(uint8(input + ASCII_ZERO));\n\n }\n\n\n\n // return ASCII letter (a-f)\n\n return byte(uint8(input + ASCII_RELATIVE_ZERO));\n\n }\n\n}\n\nlibrary Types {\n\n using Math for uint256;\n\n\n\n // ============ AssetAmount ============\n\n\n\n enum AssetDenomination {\n\n Wei, // the amount is denominated in wei\n\n Par // the amount is denominated in par\n\n }\n\n\n\n enum AssetReference {\n\n Delta, // the amount is given as a delta from the current value\n\n Target // the amount is given as an exact number to end up at\n\n }\n\n\n\n struct AssetAmount {\n\n bool sign; // true if positive\n\n AssetDenomination denomination;\n\n AssetReference ref;\n\n uint256 value;\n\n }\n\n\n\n // ============ Par (Principal Amount) ============\n\n\n\n // Total borrow and supply values for a market\n\n struct TotalPar {\n\n uint128 borrow;\n\n uint128 supply;\n\n }\n\n\n\n // Individual principal amount for an account\n\n struct Par {\n\n bool sign; // true if positive\n\n uint128 value;\n\n }\n\n\n\n function zeroPar()\n\n internal\n\n pure\n\n returns (Par memory)\n\n {\n\n return Par({\n\n sign: false,\n\n value: 0\n\n });\n\n }\n\n\n\n function sub(\n\n Par memory a,\n\n Par memory b\n\n )\n\n internal\n\n pure\n\n returns (Par memory)\n\n {\n\n return add(a, negative(b));\n\n }\n\n\n\n function add(\n\n Par memory a,\n\n Par memory b\n\n )\n\n internal\n\n pure\n\n returns (Par memory)\n\n {\n\n Par memory result;\n\n if (a.sign == b.sign) {\n\n result.sign = a.sign;\n\n result.value = SafeMath.add(a.value, b.value).to128();\n\n } else {\n\n if (a.value >= b.value) {\n\n result.sign = a.sign;\n\n result.value = SafeMath.sub(a.value, b.value).to128();\n\n } else {\n\n result.sign = b.sign;\n\n result.value = SafeMath.sub(b.value, a.value).to128();\n\n }\n\n }\n\n return result;\n\n }\n\n\n\n function equals(\n\n Par memory a,\n\n Par memory b\n\n )\n\n internal\n\n pure\n\n returns (bool)\n\n {\n\n if (a.value == b.value) {\n\n if (a.value == 0) {\n\n return true;\n\n }\n\n return a.sign == b.sign;\n\n }\n\n return false;\n\n }\n\n\n\n function negative(\n\n Par memory a\n\n )\n\n internal\n\n pure\n\n returns (Par memory)\n\n {\n\n return Par({\n\n sign: !a.sign,\n\n value: a.value\n\n });\n\n }\n\n\n\n function isNegative(\n\n Par memory a\n\n )\n\n internal\n\n pure\n\n returns (bool)\n\n {\n\n return !a.sign && a.value > 0;\n\n }\n\n\n\n function isPositive(\n\n Par memory a\n\n )\n\n internal\n\n pure\n\n returns (bool)\n\n {\n\n return a.sign && a.value > 0;\n\n }\n\n\n\n function isZero(\n\n Par memory a\n\n )\n\n internal\n\n pure\n\n returns (bool)\n\n {\n\n return a.value == 0;\n\n }\n\n\n\n // ============ Wei (Token Amount) ============\n\n\n\n // Individual token amount for an account\n\n struct Wei {\n\n bool sign; // true if positive\n\n uint256 value;\n\n }\n\n\n\n function zeroWei()\n\n internal\n\n pure\n\n returns (Wei memory)\n\n {\n\n return Wei({\n\n sign: false,\n\n value: 0\n\n });\n\n }\n\n\n\n function sub(\n\n Wei memory a,\n\n Wei memory b\n\n )\n\n internal\n\n pure\n\n returns (Wei memory)\n\n {\n\n return add(a, negative(b));\n\n }\n\n\n\n function add(\n\n Wei memory a,\n\n Wei memory b\n\n )\n\n internal\n\n pure\n\n returns (Wei memory)\n\n {\n\n Wei memory result;\n\n if (a.sign == b.sign) {\n\n result.sign = a.sign;\n\n result.value = SafeMath.add(a.value, b.value);\n\n } else {\n\n if (a.value >= b.value) {\n\n result.sign = a.sign;\n\n result.value = SafeMath.sub(a.value, b.value);\n\n } else {\n\n result.sign = b.sign;\n\n result.value = SafeMath.sub(b.value, a.value);\n\n }\n\n }\n\n return result;\n\n }\n\n\n\n function equals(\n\n Wei memory a,\n\n Wei memory b\n\n )\n\n internal\n\n pure\n\n returns (bool)\n\n {\n\n if (a.value == b.value) {\n\n if (a.value == 0) {\n\n return true;\n\n }\n\n return a.sign == b.sign;\n\n }\n\n return false;\n\n }\n\n\n\n function negative(\n\n Wei memory a\n\n )\n\n internal\n\n pure\n\n returns (Wei memory)\n\n {\n\n return Wei({\n\n sign: !a.sign,\n\n value: a.value\n\n });\n\n }\n\n\n\n function isNegative(\n\n Wei memory a\n\n )\n\n internal\n\n pure\n\n returns (bool)\n\n {\n\n return !a.sign && a.value > 0;\n\n }\n\n\n\n function isPositive(\n\n Wei memory a\n\n )\n\n internal\n\n pure\n\n returns (bool)\n\n {\n\n return a.sign && a.value > 0;\n\n }\n\n\n\n function isZero(\n\n Wei memory a\n\n )\n\n internal\n\n pure\n\n returns (bool)\n\n {\n\n return a.value == 0;\n\n }\n\n}\n\ncontract FulcrumSavingsProtocol is ProtocolInterface, DSAuth {\n\n\n\n address public constant NEW_IDAI_ADDRESS = 0x493C57C4763932315A328269E1ADaD09653B9081;\n\n address public constant DAI_ADDRESS = 0x6B175474E89094C44Da98b954EedeAC495271d0F;\n\n\n\n address public savingsProxy;\n\n uint public decimals = 10 ** 18;\n\n\n\n function addSavingsProxy(address _savingsProxy) public auth {\n\n savingsProxy = _savingsProxy;\n\n }\n\n\n\n function deposit(address _user, uint _amount) public override {\n\n require(msg.sender == _user);\n\n\n\n // get dai from user\n\n require(ERC20(DAI_ADDRESS).transferFrom(_user, address(this), _amount));\n\n\n\n // approve dai to Fulcrum\n\n ERC20(DAI_ADDRESS).approve(NEW_IDAI_ADDRESS, uint(-1));\n\n\n\n // mint iDai\n\n ITokenInterface(NEW_IDAI_ADDRESS).mint(_user, _amount);\n\n }\n\n\n\n function withdraw(address _user, uint _amount) public override {\n\n require(msg.sender == _user);\n\n\n\n // transfer all users tokens to our contract\n\n require(ERC20(NEW_IDAI_ADDRESS).transferFrom(_user, address(this), ITokenInterface(NEW_IDAI_ADDRESS).balanceOf(_user)));\n\n\n\n // approve iDai to that contract\n\n ERC20(NEW_IDAI_ADDRESS).approve(NEW_IDAI_ADDRESS, uint(-1));\n\n uint tokenPrice = ITokenInterface(NEW_IDAI_ADDRESS).tokenPrice();\n\n\n\n // get dai from iDai contract\n\n ITokenInterface(NEW_IDAI_ADDRESS).burn(_user, _amount * decimals / tokenPrice);\n\n\n\n // return all remaining tokens back to user\n\n require(ERC20(NEW_IDAI_ADDRESS).transfer(_user, ITokenInterface(NEW_IDAI_ADDRESS).balanceOf(address(this))));\n\n }\n\n}\n\ncontract LoanShifterTaker is AdminAuth, ProxyPermission {\n\n\n\n ILendingPool public constant lendingPool = ILendingPool(0x398eC7346DcD622eDc5ae82352F02bE94C62d119);\n\n\n\n address public constant ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n address public constant DAI_ADDRESS = 0x6B175474E89094C44Da98b954EedeAC495271d0F;\n\n\n\n address public constant MANAGER_ADDRESS = 0x5ef30b9986345249bc32d8928B7ee64DE9435E39;\n\n\n\n Manager public constant manager = Manager(MANAGER_ADDRESS);\n\n ShifterRegistry public constant shifterRegistry = ShifterRegistry(0x2612Af3A521c2df9EAF28422Ca335b04AdF3ac66);\n\n\n\n enum Protocols { MCD, COMPOUND }\n\n enum SwapType { NO_SWAP, COLL_SWAP, DEBT_SWAP }\n\n\n\n struct LoanShiftData {\n\n Protocols fromProtocol;\n\n Protocols toProtocol;\n\n SwapType swapType;\n\n bool wholeDebt;\n\n uint collAmount;\n\n uint debtAmount;\n\n address debtAddr1;\n\n address debtAddr2;\n\n address addrLoan1;\n\n address addrLoan2;\n\n uint id1;\n\n uint id2;\n\n }\n\n\n\n /// @notice Main entry point, it will move or transform a loan\n\n /// @dev Called through DSProxy\n\n function moveLoan(\n\n SaverExchangeCore.ExchangeData memory _exchangeData,\n\n LoanShiftData memory _loanShift\n\n ) public {\n\n if (_isSameTypeVaults(_loanShift)) {\n\n _forkVault(_loanShift);\n\n return;\n\n }\n\n\n\n _callCloseAndOpen(_exchangeData, _loanShift);\n\n }\n\n\n\n //////////////////////// INTERNAL FUNCTIONS //////////////////////////\n\n\n\n function _callCloseAndOpen(\n\n SaverExchangeCore.ExchangeData memory _exchangeData,\n\n LoanShiftData memory _loanShift\n\n ) internal {\n\n address protoAddr = shifterRegistry.getAddr(getNameByProtocol(uint8(_loanShift.fromProtocol)));\n\n\n\n uint loanAmount = _loanShift.debtAmount;\n\n\n\n if (_loanShift.wholeDebt) {\n\n loanAmount = ILoanShifter(protoAddr).getLoanAmount(_loanShift.id1, _loanShift.addrLoan1);\n\n }\n\n\n\n (\n\n uint[8] memory numData,\n\n address[8] memory addrData,\n\n uint8[3] memory enumData,\n\n bytes memory callData\n\n )\n\n = _packData(_loanShift, _exchangeData);\n\n\n\n // encode data\n\n bytes memory paramsData = abi.encode(numData, addrData, enumData, callData, address(this));\n\n\n\n address payable loanShifterReceiverAddr = payable(shifterRegistry.getAddr(\"LOAN_SHIFTER_RECEIVER\"));\n\n\n\n // call FL\n\n givePermission(loanShifterReceiverAddr);\n\n\n\n lendingPool.flashLoan(loanShifterReceiverAddr,\n\n getLoanAddr(_loanShift.debtAddr1, _loanShift.fromProtocol), loanAmount, paramsData);\n\n\n\n removePermission(loanShifterReceiverAddr);\n\n }\n\n\n\n function _forkVault(LoanShiftData memory _loanShift) internal {\n\n // Create new Vault to move to\n\n if (_loanShift.id2 == 0) {\n\n _loanShift.id2 = manager.open(manager.ilks(_loanShift.id1), address(this));\n\n }\n\n\n\n if (_loanShift.wholeDebt) {\n\n manager.shift(_loanShift.id1, _loanShift.id2);\n\n }\n\n }\n\n\n\n function _isSameTypeVaults(LoanShiftData memory _loanShift) internal pure returns (bool) {\n\n return _loanShift.fromProtocol == Protocols.MCD && _loanShift.toProtocol == Protocols.MCD\n\n && _loanShift.addrLoan1 == _loanShift.addrLoan2;\n\n }\n\n\n\n function getNameByProtocol(uint8 _proto) internal pure returns (string memory) {\n\n if (_proto == 0) {\n\n return \"MCD_SHIFTER\";\n\n } else if (_proto == 1) {\n\n return \"COMP_SHIFTER\";\n\n }\n\n }\n\n\n\n function getLoanAddr(address _address, Protocols _fromProtocol) internal returns (address) {\n\n if (_fromProtocol == Protocols.COMPOUND) {\n\n return CTokenInterface(_address).underlying();\n\n } else if (_fromProtocol == Protocols.MCD) {\n\n return DAI_ADDRESS;\n\n } else {\n\n return address(0);\n\n }\n\n }\n\n\n\n function _packData(\n\n LoanShiftData memory _loanShift,\n\n SaverExchangeCore.ExchangeData memory exchangeData\n\n ) internal pure returns (uint[8] memory numData, address[8] memory addrData, uint8[3] memory enumData, bytes memory callData) {\n\n\n\n numData = [\n\n _loanShift.collAmount,\n\n _loanShift.debtAmount,\n\n _loanShift.id1,\n\n _loanShift.id2,\n\n exchangeData.srcAmount,\n\n exchangeData.destAmount,\n\n exchangeData.minPrice,\n\n exchangeData.price0x\n\n ];\n\n\n\n addrData = [\n\n _loanShift.addrLoan1,\n\n _loanShift.addrLoan2,\n\n _loanShift.debtAddr1,\n\n _loanShift.debtAddr2,\n\n exchangeData.srcAddr,\n\n exchangeData.destAddr,\n\n exchangeData.exchangeAddr,\n\n exchangeData.wrapper\n\n ];\n\n\n\n enumData = [\n\n uint8(_loanShift.fromProtocol),\n\n uint8(_loanShift.toProtocol),\n\n uint8(_loanShift.swapType)\n\n ];\n\n\n\n callData = exchangeData.callData;\n\n }\n\n\n\n}\n\ncontract ShifterRegistry is AdminAuth {\n\n mapping (string => address) public contractAddresses;\n\n bool public finalized;\n\n\n\n function changeContractAddr(string memory _contractName, address _protoAddr) public onlyOwner {\n\n require(!finalized);\n\n contractAddresses[_contractName] = _protoAddr;\n\n }\n\n\n\n function lock() public onlyOwner {\n\n finalized = true;\n\n }\n\n\n\n function getAddr(string memory _contractName) public view returns (address contractAddr) {\n\n contractAddr = contractAddresses[_contractName];\n\n\n\n require(contractAddr != address(0), \"No contract address registred\");\n\n }\n\n\n\n}\n\nlibrary Address {\n\n function isContract(address account) internal view returns (bool) {\n\n // According to EIP-1052, 0x0 is the value returned for not-yet created accounts\n\n // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned\n\n // for accounts without code, i.e. `keccak256('')`\n\n bytes32 codehash;\n\n bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;\n\n // solhint-disable-next-line no-inline-assembly\n\n assembly { codehash := extcodehash(account) }\n\n return (codehash != accountHash && codehash != 0x0);\n\n }\n\n\n\n function sendValue(address payable recipient, uint256 amount) internal {\n\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n\n\n // solhint-disable-next-line avoid-low-level-calls, avoid-call-value\n\n (bool success, ) = recipient.call{ value: amount }(\"\");\n\n require(success, \"Address: unable to send value, recipient may have reverted\");\n\n }\n\n\n\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n\n return functionCall(target, data, \"Address: low-level call failed\");\n\n }\n\n\n\n function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {\n\n return _functionCallWithValue(target, data, 0, errorMessage);\n\n }\n\n\n\n function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n\n }\n\n\n\n function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {\n\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n\n return _functionCallWithValue(target, data, value, errorMessage);\n\n }\n\n\n\n function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {\n\n require(isContract(target), \"Address: call to non-contract\");\n\n\n\n // solhint-disable-next-line avoid-low-level-calls\n\n (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);\n\n if (success) {\n\n return returndata;\n\n } else {\n\n // Look for revert reason and bubble it up if present\n\n if (returndata.length > 0) {\n\n // The easiest way to bubble the revert reason is using memory via assembly\n\n\n\n // solhint-disable-next-line no-inline-assembly\n\n assembly {\n\n let returndata_size := mload(returndata)\n\n revert(add(32, returndata), returndata_size)\n\n }\n\n } else {\n\n revert(errorMessage);\n\n }\n\n }\n\n }\n\n}\n\ncontract BotRegistry is AdminAuth {\n\n\n\n mapping (address => bool) public botList;\n\n\n\n constructor() public {\n\n botList[0x776B4a13093e30B05781F97F6A4565B6aa8BE330] = true;\n\n\n\n botList[0xAED662abcC4FA3314985E67Ea993CAD064a7F5cF] = true;\n\n botList[0xa5d330F6619d6bF892A5B87D80272e1607b3e34D] = true;\n\n botList[0x5feB4DeE5150B589a7f567EA7CADa2759794A90A] = true;\n\n botList[0x7ca06417c1d6f480d3bB195B80692F95A6B66158] = true;\n\n }\n\n\n\n function setBot(address _botAddr, bool _state) public onlyOwner {\n\n botList[_botAddr] = _state;\n\n }\n\n\n\n}\n\ncontract DFSProxy is Auth {\n\n string public constant NAME = \"DFSProxy\";\n\n string public constant VERSION = \"v0.1\";\n\n\n\n mapping(address => mapping(uint => bool)) public nonces;\n\n\n\n // --- EIP712 niceties ---\n\n bytes32 public DOMAIN_SEPARATOR;\n\n bytes32 public constant PERMIT_TYPEHASH = keccak256(\"callProxy(address _user,address _proxy,address _contract,bytes _txData,uint256 _nonce)\");\n\n\n\n constructor(uint256 chainId_) public {\n\n DOMAIN_SEPARATOR = keccak256(abi.encode(\n\n keccak256(\"EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)\"),\n\n keccak256(bytes(NAME)),\n\n keccak256(bytes(VERSION)),\n\n chainId_,\n\n address(this)\n\n ));\n\n }\n\n\n\n function callProxy(address _user, address _proxy, address _contract, bytes calldata _txData, uint256 _nonce,\n\n uint8 _v, bytes32 _r, bytes32 _s) external payable onlyAuthorized\n\n {\n\n bytes32 digest =\n\n keccak256(abi.encodePacked(\n\n \"\\x19\\x01\",\n\n DOMAIN_SEPARATOR,\n\n keccak256(abi.encode(PERMIT_TYPEHASH,\n\n _user,\n\n _proxy,\n\n _contract,\n\n _txData,\n\n _nonce))\n\n ));\n\n\n\n // user must be proxy owner\n\n require(DSProxyInterface(_proxy).owner() == _user);\n\n require(_user == ecrecover(digest, _v, _r, _s), \"DFSProxy/user-not-valid\");\n\n require(!nonces[_user][_nonce], \"DFSProxy/invalid-nonce\");\n\n \n\n nonces[_user][_nonce] = true;\n\n\n\n DSProxyInterface(_proxy).execute{value: msg.value}(_contract, _txData);\n\n }\n\n}\n\ncontract DebugInfo {\n\n\n\n mapping (string => uint) public uintValues;\n\n mapping (string => address) public addrValues;\n\n mapping (string => string) public stringValues;\n\n mapping (string => bytes32) public bytes32Values;\n\n\n\n function logUint(string memory _id, uint _value) public {\n\n uintValues[_id] = _value;\n\n }\n\n\n\n function logAddr(string memory _id, address _value) public {\n\n addrValues[_id] = _value;\n\n }\n\n\n\n function logString(string memory _id, string memory _value) public {\n\n stringValues[_id] = _value;\n\n }\n\n\n\n function logBytes32(string memory _id, bytes32 _value) public {\n\n bytes32Values[_id] = _value;\n\n }\n\n}\n\ncontract Discount {\n\n address public owner;\n\n mapping(address => CustomServiceFee) public serviceFees;\n\n\n\n uint256 constant MAX_SERVICE_FEE = 400;\n\n\n\n struct CustomServiceFee {\n\n bool active;\n\n uint256 amount;\n\n }\n\n\n\n constructor() public {\n\n owner = msg.sender;\n\n }\n\n\n\n function isCustomFeeSet(address _user) public view returns (bool) {\n\n return serviceFees[_user].active;\n\n }\n\n\n\n function getCustomServiceFee(address _user) public view returns (uint256) {\n\n return serviceFees[_user].amount;\n\n }\n\n\n\n function setServiceFee(address _user, uint256 _fee) public {\n\n require(msg.sender == owner, \"Only owner\");\n\n require(_fee >= MAX_SERVICE_FEE || _fee == 0);\n\n\n\n serviceFees[_user] = CustomServiceFee({active: true, amount: _fee});\n\n }\n\n\n\n function disableServiceFee(address _user) public {\n\n require(msg.sender == owner, \"Only owner\");\n\n\n\n serviceFees[_user] = CustomServiceFee({active: false, amount: 0});\n\n }\n\n}\n\ncontract DydxFlashLoanBase {\n\n using SafeMath for uint256;\n\n\n\n address public constant SOLO_MARGIN_ADDRESS = 0x1E0447b19BB6EcFdAe1e4AE1694b0C3659614e4e;\n\n\n\n function _getMarketIdFromTokenAddress(address token)\n\n internal\n\n view\n\n returns (uint256)\n\n {\n\n return 0;\n\n }\n\n\n\n function _getRepaymentAmountInternal(uint256 amount)\n\n internal\n\n view\n\n returns (uint256)\n\n {\n\n // Needs to be overcollateralize\n\n // Needs to provide +2 wei to be safe\n\n return amount.add(2);\n\n }\n\n\n\n function _getAccountInfo() internal view returns (Account.Info memory) {\n\n return Account.Info({owner: address(this), number: 1});\n\n }\n\n\n\n function _getWithdrawAction(uint marketId, uint256 amount, address contractAddr)\n\n internal\n\n view\n\n returns (Actions.ActionArgs memory)\n\n {\n\n return\n\n Actions.ActionArgs({\n\n actionType: Actions.ActionType.Withdraw,\n\n accountId: 0,\n\n amount: Types.AssetAmount({\n\n sign: false,\n\n denomination: Types.AssetDenomination.Wei,\n\n ref: Types.AssetReference.Delta,\n\n value: amount\n\n }),\n\n primaryMarketId: marketId,\n\n secondaryMarketId: 0,\n\n otherAddress: contractAddr,\n\n otherAccountId: 0,\n\n data: \"\"\n\n });\n\n }\n\n\n\n function _getCallAction(bytes memory data, address contractAddr)\n\n internal\n\n view\n\n returns (Actions.ActionArgs memory)\n\n {\n\n return\n\n Actions.ActionArgs({\n\n actionType: Actions.ActionType.Call,\n\n accountId: 0,\n\n amount: Types.AssetAmount({\n\n sign: false,\n\n denomination: Types.AssetDenomination.Wei,\n\n ref: Types.AssetReference.Delta,\n\n value: 0\n\n }),\n\n primaryMarketId: 0,\n\n secondaryMarketId: 0,\n\n otherAddress: contractAddr,\n\n otherAccountId: 0,\n\n data: data\n\n });\n\n }\n\n\n\n function _getDepositAction(uint marketId, uint256 amount, address contractAddr)\n\n internal\n\n view\n\n returns (Actions.ActionArgs memory)\n\n {\n\n return\n\n Actions.ActionArgs({\n\n actionType: Actions.ActionType.Deposit,\n\n accountId: 0,\n\n amount: Types.AssetAmount({\n\n sign: true,\n\n denomination: Types.AssetDenomination.Wei,\n\n ref: Types.AssetReference.Delta,\n\n value: amount\n\n }),\n\n primaryMarketId: marketId,\n\n secondaryMarketId: 0,\n\n otherAddress: contractAddr,\n\n otherAccountId: 0,\n\n data: \"\"\n\n });\n\n }\n\n}\n\ncontract ExchangeDataParser {\n\n function decodeExchangeData(\n\n SaverExchangeCore.ExchangeData memory exchangeData\n\n ) internal pure returns (address[4] memory, uint[4] memory, bytes memory) {\n\n return (\n\n [exchangeData.srcAddr, exchangeData.destAddr, exchangeData.exchangeAddr, exchangeData.wrapper],\n\n [exchangeData.srcAmount, exchangeData.destAmount, exchangeData.minPrice, exchangeData.price0x],\n\n exchangeData.callData\n\n );\n\n }\n\n\n\n function encodeExchangeData(\n\n address[4] memory exAddr, uint[4] memory exNum, bytes memory callData\n\n ) internal pure returns (SaverExchangeCore.ExchangeData memory) {\n\n return SaverExchangeCore.ExchangeData({\n\n srcAddr: exAddr[0],\n\n destAddr: exAddr[1],\n\n srcAmount: exNum[0],\n\n destAmount: exNum[1],\n\n minPrice: exNum[2],\n\n wrapper: exAddr[3],\n\n exchangeAddr: exAddr[2],\n\n callData: callData,\n\n price0x: exNum[3]\n\n });\n\n }\n\n}\n\ninterface IFlashLoanReceiver {\n\n function executeOperation(address _reserve, uint256 _amount, uint256 _fee, bytes calldata _params) external;\n\n}\n\nabstract contract ILendingPoolAddressesProvider {\n\n\n\n function getLendingPool() public view virtual returns (address);\n\n function setLendingPoolImpl(address _pool) public virtual;\n\n\n\n function getLendingPoolCore() public virtual view returns (address payable);\n\n function setLendingPoolCoreImpl(address _lendingPoolCore) public virtual;\n\n\n\n function getLendingPoolConfigurator() public virtual view returns (address);\n\n function setLendingPoolConfiguratorImpl(address _configurator) public virtual;\n\n\n\n function getLendingPoolDataProvider() public virtual view returns (address);\n\n function setLendingPoolDataProviderImpl(address _provider) public virtual;\n\n\n\n function getLendingPoolParametersProvider() public virtual view returns (address);\n\n function setLendingPoolParametersProviderImpl(address _parametersProvider) public virtual;\n\n\n\n function getTokenDistributor() public virtual view returns (address);\n\n function setTokenDistributor(address _tokenDistributor) public virtual;\n\n\n\n\n\n function getFeeProvider() public virtual view returns (address);\n\n function setFeeProviderImpl(address _feeProvider) public virtual;\n\n\n\n function getLendingPoolLiquidationManager() public virtual view returns (address);\n\n function setLendingPoolLiquidationManager(address _manager) public virtual;\n\n\n\n function getLendingPoolManager() public virtual view returns (address);\n\n function setLendingPoolManager(address _lendingPoolManager) public virtual;\n\n\n\n function getPriceOracle() public virtual view returns (address);\n\n function setPriceOracle(address _priceOracle) public virtual;\n\n\n\n function getLendingRateOracle() public view virtual returns (address);\n\n function setLendingRateOracle(address _lendingRateOracle) public virtual;\n\n}\n\nlibrary EthAddressLib {\n\n\n\n function ethAddress() internal pure returns(address) {\n\n return 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n }\n\n}\n\nabstract contract FlashLoanReceiverBase is IFlashLoanReceiver {\n\n\n\n using SafeERC20 for ERC20;\n\n using SafeMath for uint256;\n\n\n\n ILendingPoolAddressesProvider public addressesProvider;\n\n\n\n constructor(ILendingPoolAddressesProvider _provider) public {\n\n addressesProvider = _provider;\n\n }\n\n\n\n receive () external virtual payable {}\n\n\n\n function transferFundsBackToPoolInternal(address _reserve, uint256 _amount) internal {\n\n\n\n address payable core = addressesProvider.getLendingPoolCore();\n\n\n\n transferInternal(core,_reserve, _amount);\n\n }\n\n\n\n function transferInternal(address payable _destination, address _reserve, uint256 _amount) internal {\n\n if(_reserve == EthAddressLib.ethAddress()) {\n\n //solium-disable-next-line\n\n _destination.call{value: _amount}(\"\");\n\n return;\n\n }\n\n\n\n ERC20(_reserve).safeTransfer(_destination, _amount);\n\n\n\n\n\n }\n\n\n\n function getBalanceInternal(address _target, address _reserve) internal view returns(uint256) {\n\n if(_reserve == EthAddressLib.ethAddress()) {\n\n\n\n return _target.balance;\n\n }\n\n\n\n return ERC20(_reserve).balanceOf(_target);\n\n\n\n }\n\n}\n\ncontract GasBurner {\n\n // solhint-disable-next-line const-name-snakecase\n\n GasTokenInterface public constant gasToken = GasTokenInterface(0x0000000000b3F879cb30FE243b4Dfee438691c04);\n\n\n\n modifier burnGas(uint _amount) {\n\n if (gasToken.balanceOf(address(this)) >= _amount) {\n\n gasToken.free(_amount);\n\n }\n\n\n\n _;\n\n }\n\n}\n\nlibrary SafeERC20 {\n\n using SafeMath for uint256;\n\n using Address for address;\n\n\n\n function safeTransfer(ERC20 token, address to, uint256 value) internal {\n\n _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));\n\n }\n\n\n\n function safeTransferFrom(ERC20 token, address from, address to, uint256 value) internal {\n\n _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));\n\n }\n\n\n\n /**\n\n * @dev Deprecated. This function has issues similar to the ones found in\n\n * {IERC20-approve}, and its usage is discouraged.\n\n */\n\n function safeApprove(ERC20 token, address spender, uint256 value) internal {\n\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));\n\n }\n\n\n\n function safeIncreaseAllowance(ERC20 token, address spender, uint256 value) internal {\n\n uint256 newAllowance = token.allowance(address(this), spender).add(value);\n\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\n\n }\n\n\n\n function safeDecreaseAllowance(ERC20 token, address spender, uint256 value) internal {\n\n uint256 newAllowance = token.allowance(address(this), spender).sub(value, \"SafeERC20: decreased allowance below zero\");\n\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\n\n }\n\n\n\n function _callOptionalReturn(ERC20 token, bytes memory data) private {\n\n\n\n bytes memory returndata = address(token).functionCall(data, \"SafeERC20: low-level call failed\");\n\n if (returndata.length > 0) { // Return data is optional\n\n // solhint-disable-next-line max-line-length\n\n require(abi.decode(returndata, (bool)), \"SafeERC20: ERC20 operation did not succeed\");\n\n }\n\n }\n\n}\n\nlibrary SafeMath {\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n\n\n return c;\n\n }\n\n\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return sub(a, b, \"SafeMath: subtraction overflow\");\n\n }\n\n\n\n function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n\n\n return c;\n\n }\n\n\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n\n // benefit is lost if 'b' is also tested.\n\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n\n if (a == 0) {\n\n return 0;\n\n }\n\n\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n\n\n return c;\n\n }\n\n\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return div(a, b, \"SafeMath: division by zero\");\n\n }\n\n\n\n function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n\n\n return c;\n\n }\n\n\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return mod(a, b, \"SafeMath: modulo by zero\");\n\n }\n\n\n\n function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n require(b != 0, errorMessage);\n\n return a % b;\n\n }\n\n}\n\ncontract ZrxAllowlist is AdminAuth {\n\n\n\n mapping (address => bool) public zrxAllowlist;\n\n mapping(address => bool) private nonPayableAddrs;\n\n\n\n constructor() public {\n\n zrxAllowlist[0x6958F5e95332D93D21af0D7B9Ca85B8212fEE0A5] = true;\n\n zrxAllowlist[0x61935CbDd02287B511119DDb11Aeb42F1593b7Ef] = true;\n\n zrxAllowlist[0xDef1C0ded9bec7F1a1670819833240f027b25EfF] = true;\n\n zrxAllowlist[0x080bf510FCbF18b91105470639e9561022937712] = true;\n\n\n\n nonPayableAddrs[0x080bf510FCbF18b91105470639e9561022937712] = true;\n\n }\n\n\n\n function setAllowlistAddr(address _zrxAddr, bool _state) public onlyOwner {\n\n zrxAllowlist[_zrxAddr] = _state;\n\n }\n\n\n\n function isZrxAddr(address _zrxAddr) public view returns (bool) {\n\n return zrxAllowlist[_zrxAddr];\n\n }\n\n\n\n function addNonPayableAddr(address _nonPayableAddr) public onlyOwner {\n\n\t\tnonPayableAddrs[_nonPayableAddr] = true;\n\n\t}\n\n\n\n\tfunction removeNonPayableAddr(address _nonPayableAddr) public onlyOwner {\n\n\t\tnonPayableAddrs[_nonPayableAddr] = false;\n\n\t}\n\n\n\n\tfunction isNonPayableAddr(address _addr) public view returns(bool) {\n\n\t\treturn nonPayableAddrs[_addr];\n\n\t}\n\n}\n\ncontract AaveBasicProxy is GasBurner {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n address public constant ETH_ADDR = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n address public constant AAVE_LENDING_POOL_ADDRESSES = 0x24a42fD28C976A61Df5D00D0599C34c4f90748c8;\n\n\n\n uint16 public constant AAVE_REFERRAL_CODE = 64;\n\n\n\n /// @notice User deposits tokens to the Aave protocol\n\n /// @dev User needs to approve the DSProxy to pull the _tokenAddr tokens\n\n /// @param _tokenAddr The address of the token to be deposited\n\n /// @param _amount Amount of tokens to be deposited\n\n function deposit(address _tokenAddr, uint256 _amount) public burnGas(5) payable {\n\n address lendingPoolCore = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPoolCore();\n\n address lendingPool = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n\n\n uint ethValue = _amount;\n\n\n\n if (_tokenAddr != ETH_ADDR) {\n\n ERC20(_tokenAddr).safeTransferFrom(msg.sender, address(this), _amount);\n\n approveToken(_tokenAddr, lendingPoolCore);\n\n ethValue = 0;\n\n }\n\n\n\n ILendingPool(lendingPool).deposit{value: ethValue}(_tokenAddr, _amount, AAVE_REFERRAL_CODE);\n\n\n\n setUserUseReserveAsCollateralIfNeeded(_tokenAddr);\n\n }\n\n\n\n /// @notice User withdraws tokens from the Aave protocol\n\n /// @param _tokenAddr The address of the token to be withdrawn\n\n /// @param _aTokenAddr ATokens to be withdrawn\n\n /// @param _amount Amount of tokens to be withdrawn\n\n /// @param _wholeAmount If true we will take the whole amount on chain\n\n function withdraw(address _tokenAddr, address _aTokenAddr, uint256 _amount, bool _wholeAmount) public burnGas(8) {\n\n uint256 amount = _wholeAmount ? ERC20(_aTokenAddr).balanceOf(address(this)) : _amount;\n\n\n\n IAToken(_aTokenAddr).redeem(amount);\n\n\n\n withdrawTokens(_tokenAddr);\n\n }\n\n\n\n /// @notice User borrows tokens to the Aave protocol\n\n /// @param _tokenAddr The address of the token to be borrowed\n\n /// @param _amount Amount of tokens to be borrowed\n\n /// @param _type Send 1 for variable rate and 2 for fixed rate\n\n function borrow(address _tokenAddr, uint256 _amount, uint256 _type) public burnGas(8) {\n\n address lendingPool = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n\n\n ILendingPool(lendingPool).borrow(_tokenAddr, _amount, _type, AAVE_REFERRAL_CODE);\n\n\n\n withdrawTokens(_tokenAddr);\n\n }\n\n\n\n /// @dev User needs to approve the DSProxy to pull the _tokenAddr tokens\n\n /// @notice User paybacks tokens to the Aave protocol\n\n /// @param _tokenAddr The address of the token to be paybacked\n\n /// @param _aTokenAddr ATokens to be paybacked\n\n /// @param _amount Amount of tokens to be payed back\n\n /// @param _wholeDebt If true the _amount will be set to the whole amount of the debt\n\n function payback(address _tokenAddr, address _aTokenAddr, uint256 _amount, bool _wholeDebt) public burnGas(3) payable {\n\n address lendingPoolCore = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPoolCore();\n\n address lendingPool = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n\n\n uint256 amount = _amount;\n\n\n\n (,uint256 borrowAmount,,,,,uint256 originationFee,,,) = ILendingPool(lendingPool).getUserReserveData(_tokenAddr, address(this));\n\n\n\n if (_wholeDebt) {\n\n amount = borrowAmount;\n\n }\n\n\n\n amount += originationFee;\n\n\n\n if (_tokenAddr != ETH_ADDR) {\n\n ERC20(_tokenAddr).safeTransferFrom(msg.sender, address(this), amount);\n\n approveToken(_tokenAddr, lendingPoolCore);\n\n }\n\n\n\n ILendingPool(lendingPool).repay{value: msg.value}(_tokenAddr, amount, payable(address(this)));\n\n\n\n withdrawTokens(_tokenAddr);\n\n }\n\n\n\n /// @dev User needs to approve the DSProxy to pull the _tokenAddr tokens\n\n /// @notice User paybacks tokens to the Aave protocol\n\n /// @param _tokenAddr The address of the token to be paybacked\n\n /// @param _aTokenAddr ATokens to be paybacked\n\n /// @param _amount Amount of tokens to be payed back\n\n /// @param _wholeDebt If true the _amount will be set to the whole amount of the debt\n\n function paybackOnBehalf(address _tokenAddr, address _aTokenAddr, uint256 _amount, bool _wholeDebt, address payable _onBehalf) public burnGas(3) payable {\n\n address lendingPoolCore = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPoolCore();\n\n address lendingPool = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n\n\n uint256 amount = _amount;\n\n\n\n (,uint256 borrowAmount,,,,,uint256 originationFee,,,) = ILendingPool(lendingPool).getUserReserveData(_tokenAddr, _onBehalf);\n\n\n\n if (_wholeDebt) {\n\n amount = borrowAmount;\n\n }\n\n\n\n amount += originationFee;\n\n\n\n if (_tokenAddr != ETH_ADDR) {\n\n ERC20(_tokenAddr).safeTransferFrom(msg.sender, address(this), amount);\n\n approveToken(_tokenAddr, lendingPoolCore);\n\n }\n\n\n\n ILendingPool(lendingPool).repay{value: msg.value}(_tokenAddr, amount, _onBehalf);\n\n\n\n withdrawTokens(_tokenAddr);\n\n }\n\n\n\n /// @notice Helper method to withdraw tokens from the DSProxy\n\n /// @param _tokenAddr Address of the token to be withdrawn\n\n function withdrawTokens(address _tokenAddr) public {\n\n uint256 amount = _tokenAddr == ETH_ADDR ? address(this).balance : ERC20(_tokenAddr).balanceOf(address(this));\n\n\n\n if (amount > 0) {\n\n if (_tokenAddr != ETH_ADDR) {\n\n ERC20(_tokenAddr).safeTransfer(msg.sender, amount);\n\n } else {\n\n msg.sender.transfer(amount);\n\n }\n\n }\n\n }\n\n\n\n /// @notice Approves token contract to pull underlying tokens from the DSProxy\n\n /// @param _tokenAddr Token we are trying to approve\n\n /// @param _caller Address which will gain the approval\n\n function approveToken(address _tokenAddr, address _caller) internal {\n\n if (_tokenAddr != ETH_ADDR) {\n\n ERC20(_tokenAddr).safeApprove(_caller, 0);\n\n ERC20(_tokenAddr).safeApprove(_caller, uint256(-1));\n\n }\n\n }\n\n\n\n function setUserUseReserveAsCollateralIfNeeded(address _tokenAddr) public {\n\n address lendingPool = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n (,,,,,,,,,bool collateralEnabled) = ILendingPool(lendingPool).getUserReserveData(_tokenAddr, address(this));\n\n\n\n if (!collateralEnabled) {\n\n ILendingPool(lendingPool).setUserUseReserveAsCollateral(_tokenAddr, true);\n\n }\n\n }\n\n\n\n function setUserUseReserveAsCollateral(address _tokenAddr, bool _true) public {\n\n address lendingPool = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n\n\n ILendingPool(lendingPool).setUserUseReserveAsCollateral(_tokenAddr, _true);\n\n }\n\n\n\n function swapBorrowRateMode(address _reserve) public {\n\n address lendingPool = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n\n\n ILendingPool(lendingPool).swapBorrowRateMode(_reserve);\n\n }\n\n}\n\ncontract AaveLoanInfo is AaveSafetyRatio {\n\n\n\n\tstruct LoanData {\n\n address user;\n\n uint128 ratio;\n\n address[] collAddr;\n\n address[] borrowAddr;\n\n uint256[] collAmounts;\n\n uint256[] borrowAmounts;\n\n }\n\n\n\n struct TokenInfo {\n\n address aTokenAddress;\n\n address underlyingTokenAddress;\n\n uint256 collateralFactor;\n\n uint256 price;\n\n }\n\n\n\n struct TokenInfoFull {\n\n \taddress aTokenAddress;\n\n address underlyingTokenAddress;\n\n uint256 supplyRate;\n\n uint256 borrowRate;\n\n uint256 totalSupply;\n\n uint256 availableLiquidity;\n\n uint256 totalBorrow;\n\n uint256 collateralFactor;\n\n uint256 price;\n\n bool usageAsCollateralEnabled;\n\n }\n\n\n\n /// @notice Calcualted the ratio of coll/debt for a compound user\n\n /// @param _user Address of the user\n\n function getRatio(address _user) public view returns (uint256) {\n\n // For each asset the account is in\n\n return getSafetyRatio(_user);\n\n }\n\n\n\n /// @notice Fetches Aave prices for tokens\n\n /// @param _tokens Arr. of tokens for which to get the prices\n\n /// @return prices Array of prices\n\n function getPrices(address[] memory _tokens) public view returns (uint256[] memory prices) {\n\n address priceOracleAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getPriceOracle();\n\n prices = new uint[](_tokens.length);\n\n\n\n for (uint256 i = 0; i < _tokens.length; ++i) {\n\n prices[i] = IPriceOracleGetterAave(priceOracleAddress).getAssetPrice(_tokens[i]);\n\n }\n\n }\n\n\n\n /// @notice Fetches Aave collateral factors for tokens\n\n /// @param _tokens Arr. of tokens for which to get the coll. factors\n\n /// @return collFactors Array of coll. factors\n\n function getCollFactors(address[] memory _tokens) public view returns (uint256[] memory collFactors) {\n\n \taddress lendingPoolCoreAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPoolCore();\n\n collFactors = new uint256[](_tokens.length);\n\n\n\n for (uint256 i = 0; i < _tokens.length; ++i) {\n\n \t(,collFactors[i],,) = ILendingPool(lendingPoolCoreAddress).getReserveConfiguration(_tokens[i]);\n\n }\n\n }\n\n\n\n function getTokenBalances(address _user, address[] memory _tokens) public view returns (uint256[] memory balances, uint256[] memory borrows, bool[] memory enabledAsCollateral) {\n\n \taddress lendingPoolAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n\n\n balances = new uint256[](_tokens.length);\n\n borrows = new uint256[](_tokens.length);\n\n enabledAsCollateral = new bool[](_tokens.length);\n\n\n\n for (uint256 i = 0; i < _tokens.length; i++) {\n\n address asset = _tokens[i];\n\n\n\n (balances[i], borrows[i],,,,,,,,enabledAsCollateral[i]) = ILendingPool(lendingPoolAddress).getUserReserveData(asset, _user);\n\n }\n\n }\n\n\n\n /// @notice Calcualted the ratio of coll/debt for an aave user\n\n /// @param _users Addresses of the user\n\n /// @return ratios Array of ratios\n\n function getRatios(address[] memory _users) public view returns (uint256[] memory ratios) {\n\n ratios = new uint256[](_users.length);\n\n\n\n for (uint256 i = 0; i < _users.length; ++i) {\n\n ratios[i] = getSafetyRatio(_users[i]);\n\n }\n\n }\n\n\n\n /// @notice Information about reserves\n\n /// @param _tokenAddresses Array of tokens addresses\n\n /// @return tokens Array of reserves infomartion\n\n function getTokensInfo(address[] memory _tokenAddresses) public view returns(TokenInfo[] memory tokens) {\n\n \taddress lendingPoolCoreAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPoolCore();\n\n \taddress priceOracleAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getPriceOracle();\n\n\n\n tokens = new TokenInfo[](_tokenAddresses.length);\n\n\n\n for (uint256 i = 0; i < _tokenAddresses.length; ++i) {\n\n \t(,uint256 ltv,,) = ILendingPool(lendingPoolCoreAddress).getReserveConfiguration(_tokenAddresses[i]);\n\n\n\n tokens[i] = TokenInfo({\n\n aTokenAddress: ILendingPool(lendingPoolCoreAddress).getReserveATokenAddress(_tokenAddresses[i]),\n\n underlyingTokenAddress: _tokenAddresses[i],\n\n collateralFactor: ltv,\n\n price: IPriceOracleGetterAave(priceOracleAddress).getAssetPrice(_tokenAddresses[i])\n\n });\n\n }\n\n }\n\n\n\n /// @notice Information about reserves\n\n /// @param _tokenAddresses Array of token addresses\n\n /// @return tokens Array of reserves infomartion\n\n function getFullTokensInfo(address[] memory _tokenAddresses) public view returns(TokenInfoFull[] memory tokens) {\n\n \taddress lendingPoolCoreAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPoolCore();\n\n \taddress priceOracleAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getPriceOracle();\n\n\n\n tokens = new TokenInfoFull[](_tokenAddresses.length);\n\n\n\n for (uint256 i = 0; i < _tokenAddresses.length; ++i) {\n\n \t(,uint256 ltv,,bool usageAsCollateralEnabled) = ILendingPool(lendingPoolCoreAddress).getReserveConfiguration(_tokenAddresses[i]);\n\n\n\n tokens[i] = TokenInfoFull({\n\n \taTokenAddress: ILendingPool(lendingPoolCoreAddress).getReserveATokenAddress(_tokenAddresses[i]),\n\n underlyingTokenAddress: _tokenAddresses[i],\n\n supplyRate: ILendingPool(lendingPoolCoreAddress).getReserveCurrentLiquidityRate(_tokenAddresses[i]),\n\n borrowRate: ILendingPool(lendingPoolCoreAddress).getReserveCurrentVariableBorrowRate(_tokenAddresses[i]),\n\n totalSupply: ILendingPool(lendingPoolCoreAddress).getReserveTotalLiquidity(_tokenAddresses[i]),\n\n availableLiquidity: ILendingPool(lendingPoolCoreAddress).getReserveAvailableLiquidity(_tokenAddresses[i]),\n\n totalBorrow: ILendingPool(lendingPoolCoreAddress).getReserveTotalBorrowsVariable(_tokenAddresses[i]),\n\n collateralFactor: ltv,\n\n price: IPriceOracleGetterAave(priceOracleAddress).getAssetPrice(_tokenAddresses[i]),\n\n usageAsCollateralEnabled: usageAsCollateralEnabled\n\n });\n\n }\n\n }\n\n\n\n\n\n /// @notice Fetches all the collateral/debt address and amounts, denominated in ether\n\n /// @param _user Address of the user\n\n /// @return data LoanData information\n\n function getLoanData(address _user) public view returns (LoanData memory data) {\n\n address lendingPoolAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n address priceOracleAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getPriceOracle();\n\n\n\n address[] memory reserves = ILendingPool(lendingPoolAddress).getReserves();\n\n\n\n data = LoanData({\n\n user: _user,\n\n ratio: 0,\n\n collAddr: new address[](reserves.length),\n\n borrowAddr: new address[](reserves.length),\n\n collAmounts: new uint[](reserves.length),\n\n borrowAmounts: new uint[](reserves.length)\n\n });\n\n\n\n uint64 collPos = 0;\n\n uint64 borrowPos = 0;\n\n\n\n for (uint64 i = 0; i < reserves.length; i++) {\n\n address reserve = reserves[i];\n\n\n\n (uint256 aTokenBalance, uint256 borrowBalance,,,,,,,,) = ILendingPool(lendingPoolAddress).getUserReserveData(reserve, _user);\n\n uint256 price = IPriceOracleGetterAave(priceOracleAddress).getAssetPrice(reserves[i]);\n\n\n\n if (aTokenBalance > 0) {\n\n \tuint256 userTokenBalanceEth = wmul(aTokenBalance, price) * (10 ** (18 - getDecimals(reserve)));\n\n \tdata.collAddr[collPos] = reserve;\n\n data.collAmounts[collPos] = userTokenBalanceEth;\n\n collPos++;\n\n \t}\n\n\n\n // Sum up debt in Eth\n\n if (borrowBalance > 0) {\n\n \tuint256 userBorrowBalanceEth = wmul(borrowBalance, price) * (10 ** (18 - getDecimals(reserve)));\n\n data.borrowAddr[borrowPos] = reserve;\n\n data.borrowAmounts[borrowPos] = userBorrowBalanceEth;\n\n borrowPos++;\n\n }\n\n }\n\n\n\n data.ratio = uint128(getSafetyRatio(_user));\n\n\n\n return data;\n\n }\n\n\n\n /// @notice Fetches all the collateral/debt address and amounts, denominated in ether\n\n /// @param _users Addresses of the user\n\n /// @return loans Array of LoanData information\n\n function getLoanDataArr(address[] memory _users) public view returns (LoanData[] memory loans) {\n\n loans = new LoanData[](_users.length);\n\n\n\n for (uint i = 0; i < _users.length; ++i) {\n\n loans[i] = getLoanData(_users[i]);\n\n }\n\n }\n\n\n\n\n\n function getDecimals(address _token) internal view returns (uint256) {\n\n if (_token == ETH_ADDR) return 18;\n\n\n\n return ERC20(_token).decimals();\n\n }\n\n}\n\ncontract AaveMonitor is AdminAuth, DSMath, AaveSafetyRatio, GasBurner {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n enum Method { Boost, Repay }\n\n\n\n uint public REPAY_GAS_TOKEN = 19;\n\n uint public BOOST_GAS_TOKEN = 19;\n\n\n\n uint public MAX_GAS_PRICE = 200000000000; // 200 gwei\n\n\n\n uint public REPAY_GAS_COST = 2000000;\n\n uint public BOOST_GAS_COST = 2000000;\n\n\n\n address public constant DEFISAVER_LOGGER = 0x5c55B921f590a89C1Ebe84dF170E655a82b62126;\n\n\n\n AaveMonitorProxy public aaveMonitorProxy;\n\n AaveSubscriptions public subscriptionsContract;\n\n address public aaveSaverProxy;\n\n\n\n DefisaverLogger public logger = DefisaverLogger(DEFISAVER_LOGGER);\n\n\n\n modifier onlyApproved() {\n\n require(BotRegistry(BOT_REGISTRY_ADDRESS).botList(msg.sender), \"Not auth bot\");\n\n _;\n\n }\n\n\n\n /// @param _aaveMonitorProxy Proxy contracts that actually is authorized to call DSProxy\n\n /// @param _subscriptions Subscriptions contract for Aave positions\n\n /// @param _aaveSaverProxy Contract that actually performs Repay/Boost\n\n constructor(address _aaveMonitorProxy, address _subscriptions, address _aaveSaverProxy) public {\n\n aaveMonitorProxy = AaveMonitorProxy(_aaveMonitorProxy);\n\n subscriptionsContract = AaveSubscriptions(_subscriptions);\n\n aaveSaverProxy = _aaveSaverProxy;\n\n }\n\n\n\n /// @notice Bots call this method to repay for user when conditions are met\n\n /// @dev If the contract ownes gas token it will try and use it for gas price reduction\n\n /// @param _exData Exchange data\n\n /// @param _user The actual address that owns the Aave position\n\n function repayFor(\n\n SaverExchangeCore.ExchangeData memory _exData,\n\n address _user\n\n ) public payable onlyApproved burnGas(REPAY_GAS_TOKEN) {\n\n\n\n (bool isAllowed, uint ratioBefore) = canCall(Method.Repay, _user);\n\n require(isAllowed); // check if conditions are met\n\n\n\n uint256 gasCost = calcGasCost(REPAY_GAS_COST);\n\n\n\n aaveMonitorProxy.callExecute{value: msg.value}(\n\n _user,\n\n aaveSaverProxy,\n\n abi.encodeWithSignature(\n\n \"repay((address,address,uint256,uint256,uint256,address,address,bytes,uint256),uint256)\",\n\n _exData,\n\n gasCost\n\n )\n\n );\n\n\n\n (bool isGoodRatio, uint ratioAfter) = ratioGoodAfter(Method.Repay, _user);\n\n require(isGoodRatio); // check if the after result of the actions is good\n\n\n\n returnEth();\n\n\n\n logger.Log(address(this), _user, \"AutomaticAaveRepay\", abi.encode(ratioBefore, ratioAfter));\n\n }\n\n\n\n /// @notice Bots call this method to boost for user when conditions are met\n\n /// @dev If the contract ownes gas token it will try and use it for gas price reduction\n\n /// @param _exData Exchange data\n\n /// @param _user The actual address that owns the Aave position\n\n function boostFor(\n\n SaverExchangeCore.ExchangeData memory _exData,\n\n address _user\n\n ) public payable onlyApproved burnGas(BOOST_GAS_TOKEN) {\n\n\n\n (bool isAllowed, uint ratioBefore) = canCall(Method.Boost, _user);\n\n require(isAllowed); // check if conditions are met\n\n\n\n uint256 gasCost = calcGasCost(BOOST_GAS_COST);\n\n\n\n aaveMonitorProxy.callExecute{value: msg.value}(\n\n _user,\n\n aaveSaverProxy,\n\n abi.encodeWithSignature(\n\n \"boost((address,address,uint256,uint256,uint256,address,address,bytes,uint256),uint256)\",\n\n _exData,\n\n gasCost\n\n )\n\n );\n\n\n\n\n\n (bool isGoodRatio, uint ratioAfter) = ratioGoodAfter(Method.Boost, _user);\n\n require(isGoodRatio); // check if the after result of the actions is good\n\n\n\n returnEth();\n\n\n\n logger.Log(address(this), _user, \"AutomaticAaveBoost\", abi.encode(ratioBefore, ratioAfter));\n\n }\n\n\n\n/******************* INTERNAL METHODS ********************************/\n\n function returnEth() internal {\n\n // return if some eth left\n\n if (address(this).balance > 0) {\n\n msg.sender.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n/******************* STATIC METHODS ********************************/\n\n\n\n /// @notice Checks if Boost/Repay could be triggered for the CDP\n\n /// @dev Called by AaveMonitor to enforce the min/max check\n\n /// @param _method Type of action to be called\n\n /// @param _user The actual address that owns the Aave position\n\n /// @return Boolean if it can be called and the ratio\n\n function canCall(Method _method, address _user) public view returns(bool, uint) {\n\n bool subscribed = subscriptionsContract.isSubscribed(_user);\n\n AaveSubscriptions.AaveHolder memory holder = subscriptionsContract.getHolder(_user);\n\n\n\n // check if cdp is subscribed\n\n if (!subscribed) return (false, 0);\n\n\n\n // check if boost and boost allowed\n\n if (_method == Method.Boost && !holder.boostEnabled) return (false, 0);\n\n\n\n uint currRatio = getSafetyRatio(_user);\n\n\n\n if (_method == Method.Repay) {\n\n return (currRatio < holder.minRatio, currRatio);\n\n } else if (_method == Method.Boost) {\n\n return (currRatio > holder.maxRatio, currRatio);\n\n }\n\n }\n\n\n\n /// @dev After the Boost/Repay check if the ratio doesn't trigger another call\n\n /// @param _method Type of action to be called\n\n /// @param _user The actual address that owns the Aave position\n\n /// @return Boolean if the recent action preformed correctly and the ratio\n\n function ratioGoodAfter(Method _method, address _user) public view returns(bool, uint) {\n\n AaveSubscriptions.AaveHolder memory holder;\n\n\n\n holder= subscriptionsContract.getHolder(_user);\n\n\n\n uint currRatio = getSafetyRatio(_user);\n\n\n\n if (_method == Method.Repay) {\n\n return (currRatio < holder.maxRatio, currRatio);\n\n } else if (_method == Method.Boost) {\n\n return (currRatio > holder.minRatio, currRatio);\n\n }\n\n }\n\n\n\n /// @notice Calculates gas cost (in Eth) of tx\n\n /// @dev Gas price is limited to MAX_GAS_PRICE to prevent attack of draining user CDP\n\n /// @param _gasAmount Amount of gas used for the tx\n\n function calcGasCost(uint _gasAmount) public view returns (uint) {\n\n uint gasPrice = tx.gasprice <= MAX_GAS_PRICE ? tx.gasprice : MAX_GAS_PRICE;\n\n\n\n return mul(gasPrice, _gasAmount);\n\n }\n\n\n\n/******************* OWNER ONLY OPERATIONS ********************************/\n\n\n\n /// @notice Allows owner to change gas cost for boost operation, but only up to 3 millions\n\n /// @param _gasCost New gas cost for boost method\n\n function changeBoostGasCost(uint _gasCost) public onlyOwner {\n\n require(_gasCost < 3000000);\n\n\n\n BOOST_GAS_COST = _gasCost;\n\n }\n\n\n\n /// @notice Allows owner to change gas cost for repay operation, but only up to 3 millions\n\n /// @param _gasCost New gas cost for repay method\n\n function changeRepayGasCost(uint _gasCost) public onlyOwner {\n\n require(_gasCost < 3000000);\n\n\n\n REPAY_GAS_COST = _gasCost;\n\n }\n\n\n\n /// @notice Allows owner to change max gas price\n\n /// @param _maxGasPrice New max gas price\n\n function changeMaxGasPrice(uint _maxGasPrice) public onlyOwner {\n\n require(_maxGasPrice < 500000000000);\n\n\n\n MAX_GAS_PRICE = _maxGasPrice;\n\n }\n\n\n\n /// @notice Allows owner to change gas token amount\n\n /// @param _gasTokenAmount New gas token amount\n\n /// @param _repay true if repay gas token, false if boost gas token\n\n function changeGasTokenAmount(uint _gasTokenAmount, bool _repay) public onlyOwner {\n\n if (_repay) {\n\n REPAY_GAS_TOKEN = _gasTokenAmount;\n\n } else {\n\n BOOST_GAS_TOKEN = _gasTokenAmount;\n\n }\n\n }\n\n}\n\ncontract AaveMonitorProxy is AdminAuth {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n uint public CHANGE_PERIOD;\n\n address public monitor;\n\n address public newMonitor;\n\n address public lastMonitor;\n\n uint public changeRequestedTimestamp;\n\n\n\n mapping(address => bool) public allowed;\n\n\n\n event MonitorChangeInitiated(address oldMonitor, address newMonitor);\n\n event MonitorChangeCanceled();\n\n event MonitorChangeFinished(address monitor);\n\n event MonitorChangeReverted(address monitor);\n\n\n\n // if someone who is allowed become malicious, owner can't be changed\n\n modifier onlyAllowed() {\n\n require(allowed[msg.sender] || msg.sender == owner);\n\n _;\n\n }\n\n\n\n modifier onlyMonitor() {\n\n require (msg.sender == monitor);\n\n _;\n\n }\n\n\n\n constructor(uint _changePeriod) public {\n\n CHANGE_PERIOD = _changePeriod * 1 days;\n\n }\n\n\n\n /// @notice Only monitor contract is able to call execute on users proxy\n\n /// @param _owner Address of cdp owner (users DSProxy address)\n\n /// @param _aaveSaverProxy Address of AaveSaverProxy\n\n /// @param _data Data to send to AaveSaverProxy\n\n function callExecute(address _owner, address _aaveSaverProxy, bytes memory _data) public payable onlyMonitor {\n\n // execute reverts if calling specific method fails\n\n DSProxyInterface(_owner).execute{value: msg.value}(_aaveSaverProxy, _data);\n\n\n\n // return if anything left\n\n if (address(this).balance > 0) {\n\n msg.sender.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n /// @notice Allowed users are able to set Monitor contract without any waiting period first time\n\n /// @param _monitor Address of Monitor contract\n\n function setMonitor(address _monitor) public onlyAllowed {\n\n require(monitor == address(0));\n\n monitor = _monitor;\n\n }\n\n\n\n /// @notice Allowed users are able to start procedure for changing monitor\n\n /// @dev after CHANGE_PERIOD needs to call confirmNewMonitor to actually make a change\n\n /// @param _newMonitor address of new monitor\n\n function changeMonitor(address _newMonitor) public onlyAllowed {\n\n require(changeRequestedTimestamp == 0);\n\n\n\n changeRequestedTimestamp = now;\n\n lastMonitor = monitor;\n\n newMonitor = _newMonitor;\n\n\n\n emit MonitorChangeInitiated(lastMonitor, newMonitor);\n\n }\n\n\n\n /// @notice At any point allowed users are able to cancel monitor change\n\n function cancelMonitorChange() public onlyAllowed {\n\n require(changeRequestedTimestamp > 0);\n\n\n\n changeRequestedTimestamp = 0;\n\n newMonitor = address(0);\n\n\n\n emit MonitorChangeCanceled();\n\n }\n\n\n\n /// @notice Anyone is able to confirm new monitor after CHANGE_PERIOD if process is started\n\n function confirmNewMonitor() public onlyAllowed {\n\n require((changeRequestedTimestamp + CHANGE_PERIOD) < now);\n\n require(changeRequestedTimestamp != 0);\n\n require(newMonitor != address(0));\n\n\n\n monitor = newMonitor;\n\n newMonitor = address(0);\n\n changeRequestedTimestamp = 0;\n\n\n\n emit MonitorChangeFinished(monitor);\n\n }\n\n\n\n /// @notice Its possible to revert monitor to last used monitor\n\n function revertMonitor() public onlyAllowed {\n\n require(lastMonitor != address(0));\n\n\n\n monitor = lastMonitor;\n\n\n\n emit MonitorChangeReverted(monitor);\n\n }\n\n\n\n\n\n /// @notice Allowed users are able to add new allowed user\n\n /// @param _user Address of user that will be allowed\n\n function addAllowed(address _user) public onlyAllowed {\n\n allowed[_user] = true;\n\n }\n\n\n\n /// @notice Allowed users are able to remove allowed user\n\n /// @dev owner is always allowed even if someone tries to remove it from allowed mapping\n\n /// @param _user Address of allowed user\n\n function removeAllowed(address _user) public onlyAllowed {\n\n allowed[_user] = false;\n\n }\n\n\n\n function setChangePeriod(uint _periodInDays) public onlyAllowed {\n\n require(_periodInDays * 1 days > CHANGE_PERIOD);\n\n\n\n CHANGE_PERIOD = _periodInDays * 1 days;\n\n }\n\n\n\n /// @notice In case something is left in contract, owner is able to withdraw it\n\n /// @param _token address of token to withdraw balance\n\n function withdrawToken(address _token) public onlyOwner {\n\n uint balance = ERC20(_token).balanceOf(address(this));\n\n ERC20(_token).safeTransfer(msg.sender, balance);\n\n }\n\n\n\n /// @notice In case something is left in contract, owner is able to withdraw it\n\n function withdrawEth() public onlyOwner {\n\n uint balance = address(this).balance;\n\n msg.sender.transfer(balance);\n\n }\n\n}\n\ncontract AaveSubscriptions is AdminAuth {\n\n\n\n struct AaveHolder {\n\n address user;\n\n uint128 minRatio;\n\n uint128 maxRatio;\n\n uint128 optimalRatioBoost;\n\n uint128 optimalRatioRepay;\n\n bool boostEnabled;\n\n }\n\n\n\n struct SubPosition {\n\n uint arrPos;\n\n bool subscribed;\n\n }\n\n\n\n AaveHolder[] public subscribers;\n\n mapping (address => SubPosition) public subscribersPos;\n\n\n\n uint public changeIndex;\n\n\n\n event Subscribed(address indexed user);\n\n event Unsubscribed(address indexed user);\n\n event Updated(address indexed user);\n\n event ParamUpdates(address indexed user, uint128, uint128, uint128, uint128, bool);\n\n\n\n /// @dev Called by the DSProxy contract which owns the Aave position\n\n /// @notice Adds the users Aave poistion in the list of subscriptions so it can be monitored\n\n /// @param _minRatio Minimum ratio below which repay is triggered\n\n /// @param _maxRatio Maximum ratio after which boost is triggered\n\n /// @param _optimalBoost Ratio amount which boost should target\n\n /// @param _optimalRepay Ratio amount which repay should target\n\n /// @param _boostEnabled Boolean determing if boost is enabled\n\n function subscribe(uint128 _minRatio, uint128 _maxRatio, uint128 _optimalBoost, uint128 _optimalRepay, bool _boostEnabled) external {\n\n\n\n // if boost is not enabled, set max ratio to max uint\n\n uint128 localMaxRatio = _boostEnabled ? _maxRatio : uint128(-1);\n\n require(checkParams(_minRatio, localMaxRatio), \"Must be correct params\");\n\n\n\n SubPosition storage subInfo = subscribersPos[msg.sender];\n\n\n\n AaveHolder memory subscription = AaveHolder({\n\n minRatio: _minRatio,\n\n maxRatio: localMaxRatio,\n\n optimalRatioBoost: _optimalBoost,\n\n optimalRatioRepay: _optimalRepay,\n\n user: msg.sender,\n\n boostEnabled: _boostEnabled\n\n });\n\n\n\n changeIndex++;\n\n\n\n if (subInfo.subscribed) {\n\n subscribers[subInfo.arrPos] = subscription;\n\n\n\n emit Updated(msg.sender);\n\n emit ParamUpdates(msg.sender, _minRatio, localMaxRatio, _optimalBoost, _optimalRepay, _boostEnabled);\n\n } else {\n\n subscribers.push(subscription);\n\n\n\n subInfo.arrPos = subscribers.length - 1;\n\n subInfo.subscribed = true;\n\n\n\n emit Subscribed(msg.sender);\n\n }\n\n }\n\n\n\n /// @notice Called by the users DSProxy\n\n /// @dev Owner who subscribed cancels his subscription\n\n function unsubscribe() external {\n\n _unsubscribe(msg.sender);\n\n }\n\n\n\n /// @dev Checks limit if minRatio is bigger than max\n\n /// @param _minRatio Minimum ratio, bellow which repay can be triggered\n\n /// @param _maxRatio Maximum ratio, over which boost can be triggered\n\n /// @return Returns bool if the params are correct\n\n function checkParams(uint128 _minRatio, uint128 _maxRatio) internal pure returns (bool) {\n\n\n\n if (_minRatio > _maxRatio) {\n\n return false;\n\n }\n\n\n\n return true;\n\n }\n\n\n\n /// @dev Internal method to remove a subscriber from the list\n\n /// @param _user The actual address that owns the Aave position\n\n function _unsubscribe(address _user) internal {\n\n require(subscribers.length > 0, \"Must have subscribers in the list\");\n\n\n\n SubPosition storage subInfo = subscribersPos[_user];\n\n\n\n require(subInfo.subscribed, \"Must first be subscribed\");\n\n\n\n address lastOwner = subscribers[subscribers.length - 1].user;\n\n\n\n SubPosition storage subInfo2 = subscribersPos[lastOwner];\n\n subInfo2.arrPos = subInfo.arrPos;\n\n\n\n subscribers[subInfo.arrPos] = subscribers[subscribers.length - 1];\n\n subscribers.pop(); // remove last element and reduce arr length\n\n\n\n changeIndex++;\n\n subInfo.subscribed = false;\n\n subInfo.arrPos = 0;\n\n\n\n emit Unsubscribed(msg.sender);\n\n }\n\n\n\n /// @dev Checks if the user is subscribed\n\n /// @param _user The actual address that owns the Aave position\n\n /// @return If the user is subscribed\n\n function isSubscribed(address _user) public view returns (bool) {\n\n SubPosition storage subInfo = subscribersPos[_user];\n\n\n\n return subInfo.subscribed;\n\n }\n\n\n\n /// @dev Returns subscribtion information about a user\n\n /// @param _user The actual address that owns the Aave position\n\n /// @return Subscription information about the user if exists\n\n function getHolder(address _user) public view returns (AaveHolder memory) {\n\n SubPosition storage subInfo = subscribersPos[_user];\n\n\n\n return subscribers[subInfo.arrPos];\n\n }\n\n\n\n /// @notice Helper method to return all the subscribed CDPs\n\n /// @return List of all subscribers\n\n function getSubscribers() public view returns (AaveHolder[] memory) {\n\n return subscribers;\n\n }\n\n\n\n /// @notice Helper method for the frontend, returns all the subscribed CDPs paginated\n\n /// @param _page What page of subscribers you want\n\n /// @param _perPage Number of entries per page\n\n /// @return List of all subscribers for that page\n\n function getSubscribersByPage(uint _page, uint _perPage) public view returns (AaveHolder[] memory) {\n\n AaveHolder[] memory holders = new AaveHolder[](_perPage);\n\n\n\n uint start = _page * _perPage;\n\n uint end = start + _perPage;\n\n\n\n end = (end > holders.length) ? holders.length : end;\n\n\n\n uint count = 0;\n\n for (uint i = start; i < end; i++) {\n\n holders[count] = subscribers[i];\n\n count++;\n\n }\n\n\n\n return holders;\n\n }\n\n\n\n ////////////// ADMIN METHODS ///////////////////\n\n\n\n /// @notice Admin function to unsubscribe a position\n\n /// @param _user The actual address that owns the Aave position\n\n function unsubscribeByAdmin(address _user) public onlyOwner {\n\n SubPosition storage subInfo = subscribersPos[_user];\n\n\n\n if (subInfo.subscribed) {\n\n _unsubscribe(_user);\n\n }\n\n }\n\n}\n\ncontract AaveSubscriptionsProxy is ProxyPermission {\n\n\n\n address public constant AAVE_SUBSCRIPTION_ADDRESS = 0xe08ff7A2BADb634F0b581E675E6B3e583De086FC;\n\n address public constant AAVE_MONITOR_PROXY = 0xfA560Dba3a8D0B197cA9505A2B98120DD89209AC;\n\n\n\n /// @notice Calls subscription contract and creates a DSGuard if non existent\n\n /// @param _minRatio Minimum ratio below which repay is triggered\n\n /// @param _maxRatio Maximum ratio after which boost is triggered\n\n /// @param _optimalRatioBoost Ratio amount which boost should target\n\n /// @param _optimalRatioRepay Ratio amount which repay should target\n\n /// @param _boostEnabled Boolean determing if boost is enabled\n\n function subscribe(\n\n uint128 _minRatio,\n\n uint128 _maxRatio,\n\n uint128 _optimalRatioBoost,\n\n uint128 _optimalRatioRepay,\n\n bool _boostEnabled\n\n ) public {\n\n givePermission(AAVE_MONITOR_PROXY);\n\n IAaveSubscription(AAVE_SUBSCRIPTION_ADDRESS).subscribe(\n\n _minRatio, _maxRatio, _optimalRatioBoost, _optimalRatioRepay, _boostEnabled);\n\n }\n\n\n\n /// @notice Calls subscription contract and updated existing parameters\n\n /// @dev If subscription is non existent this will create one\n\n /// @param _minRatio Minimum ratio below which repay is triggered\n\n /// @param _maxRatio Maximum ratio after which boost is triggered\n\n /// @param _optimalRatioBoost Ratio amount which boost should target\n\n /// @param _optimalRatioRepay Ratio amount which repay should target\n\n /// @param _boostEnabled Boolean determing if boost is enabled\n\n function update(\n\n uint128 _minRatio,\n\n uint128 _maxRatio,\n\n uint128 _optimalRatioBoost,\n\n uint128 _optimalRatioRepay,\n\n bool _boostEnabled\n\n ) public {\n\n IAaveSubscription(AAVE_SUBSCRIPTION_ADDRESS).subscribe(_minRatio, _maxRatio, _optimalRatioBoost, _optimalRatioRepay, _boostEnabled);\n\n }\n\n\n\n /// @notice Calls the subscription contract to unsubscribe the caller\n\n function unsubscribe() public {\n\n removePermission(AAVE_MONITOR_PROXY);\n\n IAaveSubscription(AAVE_SUBSCRIPTION_ADDRESS).unsubscribe();\n\n }\n\n}\n\ncontract AaveImport is AaveHelper, AdminAuth {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n address public constant WETH_ADDRESS = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;\n\n address public constant BASIC_PROXY = 0x9D266997bc73B27d4302E711b55FD78B5278e1De;\n\n address public constant AETH_ADDRESS = 0x3a3A65aAb0dd2A17E3F1947bA16138cd37d08c04;\n\n\n\n function callFunction(\n\n address sender,\n\n Account.Info memory account,\n\n bytes memory data\n\n ) public {\n\n\n\n (\n\n address collateralToken,\n\n address borrowToken,\n\n uint256 ethAmount,\n\n address user,\n\n address proxy\n\n )\n\n = abi.decode(data, (address,address,uint256,address,address));\n\n\n\n // withdraw eth\n\n TokenInterface(WETH_ADDRESS).withdraw(ethAmount);\n\n\n\n address lendingPoolCoreAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPoolCore();\n\n address lendingPool = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n address aCollateralToken = ILendingPool(lendingPoolCoreAddress).getReserveATokenAddress(collateralToken);\n\n address aBorrowToken = ILendingPool(lendingPoolCoreAddress).getReserveATokenAddress(borrowToken);\n\n\n\n // deposit eth on behalf of proxy\n\n DSProxy(payable(proxy)).execute{value: ethAmount}(BASIC_PROXY, abi.encodeWithSignature(\"deposit(address,uint256)\", ETH_ADDR, ethAmount));\n\n // borrow needed amount to repay users borrow\n\n (,uint256 borrowAmount,,uint256 borrowRateMode,,,uint256 originationFee,,,) = ILendingPool(lendingPool).getUserReserveData(borrowToken, user);\n\n borrowAmount += originationFee;\n\n DSProxy(payable(proxy)).execute(BASIC_PROXY, abi.encodeWithSignature(\"borrow(address,uint256,uint256)\", borrowToken, borrowAmount, borrowRateMode));\n\n // payback on behalf of user\n\n ERC20(borrowToken).safeApprove(proxy, borrowAmount);\n\n DSProxy(payable(proxy)).execute(BASIC_PROXY, abi.encodeWithSignature(\"paybackOnBehalf(address,address,uint256,bool,address)\", borrowToken, aBorrowToken, 0, true, user));\n\n // pull tokens from user to proxy\n\n ERC20(aCollateralToken).safeTransferFrom(user, proxy, ERC20(aCollateralToken).balanceOf(user));\n\n\n\n // enable as collateral\n\n DSProxy(payable(proxy)).execute(BASIC_PROXY, abi.encodeWithSignature(\"setUserUseReserveAsCollateralIfNeeded(address)\", collateralToken));\n\n\n\n // withdraw deposited eth\n\n DSProxy(payable(proxy)).execute(BASIC_PROXY, abi.encodeWithSignature(\"withdraw(address,address,uint256,bool)\", ETH_ADDR, AETH_ADDRESS, ethAmount, false));\n\n\n\n // deposit eth, get weth and return to sender\n\n TokenInterface(WETH_ADDRESS).deposit.value(address(this).balance)();\n\n ERC20(WETH_ADDRESS).safeTransfer(proxy, ethAmount+2);\n\n }\n\n\n\n /// @dev if contract receive eth, convert it to WETH\n\n receive() external payable {\n\n // deposit eth and get weth \n\n if (msg.sender == owner) {\n\n TokenInterface(WETH_ADDRESS).deposit.value(address(this).balance)();\n\n }\n\n }\n\n}\n\ncontract AaveImportTaker is DydxFlashLoanBase, ProxyPermission {\n\n\n\n address public constant WETH_ADDR = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;\n\n address payable public constant AAVE_IMPORT = 0x44e4EF23b4794699D0625657cADcB96e07820fFe;\n\n address public constant DEFISAVER_LOGGER = 0x5c55B921f590a89C1Ebe84dF170E655a82b62126;\n\n address public constant PROXY_REGISTRY_ADDRESS = 0x4678f0a6958e4D2Bc4F1BAF7Bc52E8F3564f3fE4;\n\n\n\n /// @notice Starts the process to move users position 1 collateral and 1 borrow\n\n /// @dev User must send 2 wei with this transaction\n\n /// @dev User must approve AaveImport to pull _aCollateralToken\n\n /// @param _collateralToken Collateral token we are moving to DSProxy\n\n /// @param _borrowToken Borrow token we are moving to DSProxy\n\n /// @param _ethAmount ETH amount that needs to be pulled from dydx\n\n function importLoan(address _collateralToken, address _borrowToken, uint _ethAmount) public {\n\n ISoloMargin solo = ISoloMargin(SOLO_MARGIN_ADDRESS);\n\n\n\n // Get marketId from token address\n\n uint256 marketId = _getMarketIdFromTokenAddress(WETH_ADDR);\n\n\n\n // Calculate repay amount (_amount + (2 wei))\n\n // Approve transfer from\n\n uint256 repayAmount = _getRepaymentAmountInternal(_ethAmount);\n\n ERC20(WETH_ADDR).approve(SOLO_MARGIN_ADDRESS, repayAmount);\n\n\n\n Actions.ActionArgs[] memory operations = new Actions.ActionArgs[](3);\n\n\n\n operations[0] = _getWithdrawAction(marketId, _ethAmount, AAVE_IMPORT);\n\n operations[1] = _getCallAction(\n\n abi.encode(_collateralToken, _borrowToken, _ethAmount, msg.sender, address(this)),\n\n AAVE_IMPORT\n\n );\n\n operations[2] = _getDepositAction(marketId, repayAmount, address(this));\n\n\n\n Account.Info[] memory accountInfos = new Account.Info[](1);\n\n accountInfos[0] = _getAccountInfo();\n\n\n\n givePermission(AAVE_IMPORT);\n\n solo.operate(accountInfos, operations);\n\n removePermission(AAVE_IMPORT);\n\n\n\n DefisaverLogger(DEFISAVER_LOGGER).Log(address(this), msg.sender, \"AaveImport\", abi.encode(_collateralToken, _borrowToken));\n\n }\n\n}\n\ncontract CompoundBasicProxy is GasBurner {\n\n\n\n address public constant ETH_ADDR = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n address public constant COMPTROLLER_ADDR = 0x3d9819210A31b4961b30EF54bE2aeD79B9c9Cd3B;\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n /// @notice User deposits tokens to the Compound protocol\n\n /// @dev User needs to approve the DSProxy to pull the _tokenAddr tokens\n\n /// @param _tokenAddr The address of the token to be deposited\n\n /// @param _cTokenAddr CTokens to be deposited\n\n /// @param _amount Amount of tokens to be deposited\n\n /// @param _inMarket True if the token is already in market for that address\n\n function deposit(address _tokenAddr, address _cTokenAddr, uint _amount, bool _inMarket) public burnGas(5) payable {\n\n if (_tokenAddr != ETH_ADDR) {\n\n ERC20(_tokenAddr).safeTransferFrom(msg.sender, address(this), _amount);\n\n }\n\n\n\n approveToken(_tokenAddr, _cTokenAddr);\n\n\n\n if (!_inMarket) {\n\n enterMarket(_cTokenAddr);\n\n }\n\n\n\n if (_tokenAddr != ETH_ADDR) {\n\n require(CTokenInterface(_cTokenAddr).mint(_amount) == 0);\n\n } else {\n\n CEtherInterface(_cTokenAddr).mint{value: msg.value}(); // reverts on fail\n\n }\n\n }\n\n\n\n /// @notice User withdraws tokens to the Compound protocol\n\n /// @param _tokenAddr The address of the token to be withdrawn\n\n /// @param _cTokenAddr CTokens to be withdrawn\n\n /// @param _amount Amount of tokens to be withdrawn\n\n /// @param _isCAmount If true _amount is cTokens if falls _amount is underlying tokens\n\n function withdraw(address _tokenAddr, address _cTokenAddr, uint _amount, bool _isCAmount) public burnGas(5) {\n\n\n\n if (_isCAmount) {\n\n require(CTokenInterface(_cTokenAddr).redeem(_amount) == 0);\n\n } else {\n\n require(CTokenInterface(_cTokenAddr).redeemUnderlying(_amount) == 0);\n\n }\n\n\n\n // withdraw funds to msg.sender\n\n if (_tokenAddr != ETH_ADDR) {\n\n ERC20(_tokenAddr).safeTransfer(msg.sender, ERC20(_tokenAddr).balanceOf(address(this)));\n\n } else {\n\n msg.sender.transfer(address(this).balance);\n\n }\n\n\n\n }\n\n\n\n /// @notice User borrows tokens to the Compound protocol\n\n /// @param _tokenAddr The address of the token to be borrowed\n\n /// @param _cTokenAddr CTokens to be borrowed\n\n /// @param _amount Amount of tokens to be borrowed\n\n /// @param _inMarket True if the token is already in market for that address\n\n function borrow(address _tokenAddr, address _cTokenAddr, uint _amount, bool _inMarket) public burnGas(8) {\n\n if (!_inMarket) {\n\n enterMarket(_cTokenAddr);\n\n }\n\n\n\n require(CTokenInterface(_cTokenAddr).borrow(_amount) == 0);\n\n\n\n // withdraw funds to msg.sender\n\n if (_tokenAddr != ETH_ADDR) {\n\n ERC20(_tokenAddr).safeTransfer(msg.sender, ERC20(_tokenAddr).balanceOf(address(this)));\n\n } else {\n\n msg.sender.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n /// @dev User needs to approve the DSProxy to pull the _tokenAddr tokens\n\n /// @notice User paybacks tokens to the Compound protocol\n\n /// @param _tokenAddr The address of the token to be paybacked\n\n /// @param _cTokenAddr CTokens to be paybacked\n\n /// @param _amount Amount of tokens to be payedback\n\n /// @param _wholeDebt If true the _amount will be set to the whole amount of the debt\n\n function payback(address _tokenAddr, address _cTokenAddr, uint _amount, bool _wholeDebt) public burnGas(5) payable {\n\n approveToken(_tokenAddr, _cTokenAddr);\n\n\n\n if (_wholeDebt) {\n\n _amount = CTokenInterface(_cTokenAddr).borrowBalanceCurrent(address(this));\n\n }\n\n\n\n if (_tokenAddr != ETH_ADDR) {\n\n ERC20(_tokenAddr).safeTransferFrom(msg.sender, address(this), _amount);\n\n\n\n require(CTokenInterface(_cTokenAddr).repayBorrow(_amount) == 0);\n\n } else {\n\n CEtherInterface(_cTokenAddr).repayBorrow{value: msg.value}();\n\n msg.sender.transfer(address(this).balance); // send back the extra eth\n\n }\n\n }\n\n\n\n /// @notice Helper method to withdraw tokens from the DSProxy\n\n /// @param _tokenAddr Address of the token to be withdrawn\n\n function withdrawTokens(address _tokenAddr) public {\n\n if (_tokenAddr != ETH_ADDR) {\n\n ERC20(_tokenAddr).safeTransfer(msg.sender, ERC20(_tokenAddr).balanceOf(address(this)));\n\n } else {\n\n msg.sender.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n /// @notice Enters the Compound market so it can be deposited/borrowed\n\n /// @param _cTokenAddr CToken address of the token\n\n function enterMarket(address _cTokenAddr) public {\n\n address[] memory markets = new address[](1);\n\n markets[0] = _cTokenAddr;\n\n\n\n ComptrollerInterface(COMPTROLLER_ADDR).enterMarkets(markets);\n\n }\n\n\n\n /// @notice Exits the Compound market so it can't be deposited/borrowed\n\n /// @param _cTokenAddr CToken address of the token\n\n function exitMarket(address _cTokenAddr) public {\n\n ComptrollerInterface(COMPTROLLER_ADDR).exitMarket(_cTokenAddr);\n\n }\n\n\n\n /// @notice Approves CToken contract to pull underlying tokens from the DSProxy\n\n /// @param _tokenAddr Token we are trying to approve\n\n /// @param _cTokenAddr Address which will gain the approval\n\n function approveToken(address _tokenAddr, address _cTokenAddr) internal {\n\n if (_tokenAddr != ETH_ADDR) {\n\n ERC20(_tokenAddr).safeApprove(_cTokenAddr, 0);\n\n ERC20(_tokenAddr).safeApprove(_cTokenAddr, uint(-1));\n\n }\n\n }\n\n}\n\ncontract CompoundSafetyRatio is Exponential, DSMath {\n\n // solhint-disable-next-line const-name-snakecase\n\n ComptrollerInterface public constant comp = ComptrollerInterface(0x3d9819210A31b4961b30EF54bE2aeD79B9c9Cd3B);\n\n\n\n /// @notice Calcualted the ratio of debt / adjusted collateral\n\n /// @param _user Address of the user\n\n function getSafetyRatio(address _user) public view returns (uint) {\n\n // For each asset the account is in\n\n address[] memory assets = comp.getAssetsIn(_user);\n\n address oracleAddr = comp.oracle();\n\n\n\n\n\n uint sumCollateral = 0;\n\n uint sumBorrow = 0;\n\n\n\n for (uint i = 0; i < assets.length; i++) {\n\n address asset = assets[i];\n\n\n\n (, uint cTokenBalance, uint borrowBalance, uint exchangeRateMantissa)\n\n = CTokenInterface(asset).getAccountSnapshot(_user);\n\n\n\n Exp memory oraclePrice;\n\n\n\n if (cTokenBalance != 0 || borrowBalance != 0) {\n\n oraclePrice = Exp({mantissa: CompoundOracleInterface(oracleAddr).getUnderlyingPrice(asset)});\n\n }\n\n\n\n // Sum up collateral in Usd\n\n if (cTokenBalance != 0) {\n\n\n\n (, uint collFactorMantissa) = comp.markets(address(asset));\n\n\n\n Exp memory collateralFactor = Exp({mantissa: collFactorMantissa});\n\n Exp memory exchangeRate = Exp({mantissa: exchangeRateMantissa});\n\n\n\n (, Exp memory tokensToUsd) = mulExp3(collateralFactor, exchangeRate, oraclePrice);\n\n\n\n (, sumCollateral) = mulScalarTruncateAddUInt(tokensToUsd, cTokenBalance, sumCollateral);\n\n }\n\n\n\n // Sum up debt in Usd\n\n if (borrowBalance != 0) {\n\n (, sumBorrow) = mulScalarTruncateAddUInt(oraclePrice, borrowBalance, sumBorrow);\n\n }\n\n }\n\n\n\n if (sumBorrow == 0) return uint(-1);\n\n\n\n uint borrowPowerUsed = (sumBorrow * 10**18) / sumCollateral;\n\n return wdiv(1e18, borrowPowerUsed);\n\n }\n\n}\n\ncontract CompoundMonitor is AdminAuth, DSMath, CompoundSafetyRatio, GasBurner {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n enum Method { Boost, Repay }\n\n\n\n uint public REPAY_GAS_TOKEN = 25;\n\n uint public BOOST_GAS_TOKEN = 20;\n\n\n\n uint constant public MAX_GAS_PRICE = 80000000000; // 80 gwei\n\n\n\n uint public REPAY_GAS_COST = 2200000;\n\n uint public BOOST_GAS_COST = 1700000;\n\n\n\n address public constant GAS_TOKEN_INTERFACE_ADDRESS = 0x0000000000b3F879cb30FE243b4Dfee438691c04;\n\n address public constant DEFISAVER_LOGGER = 0x5c55B921f590a89C1Ebe84dF170E655a82b62126;\n\n address public constant BOT_REGISTRY_ADDRESS = 0x637726f8b08a7ABE3aE3aCaB01A80E2d8ddeF77B;\n\n\n\n CompoundMonitorProxy public compoundMonitorProxy;\n\n CompoundSubscriptions public subscriptionsContract;\n\n address public compoundFlashLoanTakerAddress;\n\n\n\n DefisaverLogger public logger = DefisaverLogger(DEFISAVER_LOGGER);\n\n\n\n modifier onlyApproved() {\n\n require(BotRegistry(BOT_REGISTRY_ADDRESS).botList(msg.sender), \"Not auth bot\");\n\n _;\n\n }\n\n\n\n /// @param _compoundMonitorProxy Proxy contracts that actually is authorized to call DSProxy\n\n /// @param _subscriptions Subscriptions contract for Compound positions\n\n /// @param _compoundFlashLoanTaker Contract that actually performs Repay/Boost\n\n constructor(address _compoundMonitorProxy, address _subscriptions, address _compoundFlashLoanTaker) public {\n\n compoundMonitorProxy = CompoundMonitorProxy(_compoundMonitorProxy);\n\n subscriptionsContract = CompoundSubscriptions(_subscriptions);\n\n compoundFlashLoanTakerAddress = _compoundFlashLoanTaker;\n\n }\n\n\n\n /// @notice Bots call this method to repay for user when conditions are met\n\n /// @dev If the contract ownes gas token it will try and use it for gas price reduction\n\n /// @param _exData Exchange data\n\n /// @param _cAddresses cTokens addreses and exchange [cCollAddress, cBorrowAddress, exchangeAddress]\n\n /// @param _user The actual address that owns the Compound position\n\n function repayFor(\n\n SaverExchangeCore.ExchangeData memory _exData,\n\n address[2] memory _cAddresses, // cCollAddress, cBorrowAddress\n\n address _user\n\n ) public payable onlyApproved burnGas(REPAY_GAS_TOKEN) {\n\n\n\n (bool isAllowed, uint ratioBefore) = canCall(Method.Repay, _user);\n\n require(isAllowed); // check if conditions are met\n\n\n\n uint256 gasCost = calcGasCost(REPAY_GAS_COST);\n\n\n\n compoundMonitorProxy.callExecute{value: msg.value}(\n\n _user,\n\n compoundFlashLoanTakerAddress,\n\n abi.encodeWithSignature(\n\n \"repayWithLoan((address,address,uint256,uint256,uint256,address,address,bytes,uint256),address[2],uint256)\",\n\n _exData,\n\n _cAddresses,\n\n gasCost\n\n )\n\n );\n\n\n\n (bool isGoodRatio, uint ratioAfter) = ratioGoodAfter(Method.Repay, _user);\n\n require(isGoodRatio); // check if the after result of the actions is good\n\n\n\n returnEth();\n\n\n\n logger.Log(address(this), _user, \"AutomaticCompoundRepay\", abi.encode(ratioBefore, ratioAfter));\n\n }\n\n\n\n /// @notice Bots call this method to boost for user when conditions are met\n\n /// @dev If the contract ownes gas token it will try and use it for gas price reduction\n\n /// @param _exData Exchange data\n\n /// @param _cAddresses cTokens addreses and exchange [cCollAddress, cBorrowAddress, exchangeAddress]\n\n /// @param _user The actual address that owns the Compound position\n\n function boostFor(\n\n SaverExchangeCore.ExchangeData memory _exData,\n\n address[2] memory _cAddresses, // cCollAddress, cBorrowAddress\n\n address _user\n\n ) public payable onlyApproved burnGas(BOOST_GAS_TOKEN) {\n\n\n\n (bool isAllowed, uint ratioBefore) = canCall(Method.Boost, _user);\n\n require(isAllowed); // check if conditions are met\n\n\n\n uint256 gasCost = calcGasCost(BOOST_GAS_COST);\n\n\n\n compoundMonitorProxy.callExecute{value: msg.value}(\n\n _user,\n\n compoundFlashLoanTakerAddress,\n\n abi.encodeWithSignature(\n\n \"boostWithLoan((address,address,uint256,uint256,uint256,address,address,bytes,uint256),address[2],uint256)\",\n\n _exData,\n\n _cAddresses,\n\n gasCost\n\n )\n\n );\n\n\n\n\n\n (bool isGoodRatio, uint ratioAfter) = ratioGoodAfter(Method.Boost, _user);\n\n require(isGoodRatio); // check if the after result of the actions is good\n\n\n\n returnEth();\n\n\n\n logger.Log(address(this), _user, \"AutomaticCompoundBoost\", abi.encode(ratioBefore, ratioAfter));\n\n }\n\n\n\n/******************* INTERNAL METHODS ********************************/\n\n function returnEth() internal {\n\n // return if some eth left\n\n if (address(this).balance > 0) {\n\n msg.sender.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n/******************* STATIC METHODS ********************************/\n\n\n\n /// @notice Checks if Boost/Repay could be triggered for the CDP\n\n /// @dev Called by MCDMonitor to enforce the min/max check\n\n /// @param _method Type of action to be called\n\n /// @param _user The actual address that owns the Compound position\n\n /// @return Boolean if it can be called and the ratio\n\n function canCall(Method _method, address _user) public view returns(bool, uint) {\n\n bool subscribed = subscriptionsContract.isSubscribed(_user);\n\n CompoundSubscriptions.CompoundHolder memory holder = subscriptionsContract.getHolder(_user);\n\n\n\n // check if cdp is subscribed\n\n if (!subscribed) return (false, 0);\n\n\n\n // check if boost and boost allowed\n\n if (_method == Method.Boost && !holder.boostEnabled) return (false, 0);\n\n\n\n uint currRatio = getSafetyRatio(_user);\n\n\n\n if (_method == Method.Repay) {\n\n return (currRatio < holder.minRatio, currRatio);\n\n } else if (_method == Method.Boost) {\n\n return (currRatio > holder.maxRatio, currRatio);\n\n }\n\n }\n\n\n\n /// @dev After the Boost/Repay check if the ratio doesn't trigger another call\n\n /// @param _method Type of action to be called\n\n /// @param _user The actual address that owns the Compound position\n\n /// @return Boolean if the recent action preformed correctly and the ratio\n\n function ratioGoodAfter(Method _method, address _user) public view returns(bool, uint) {\n\n CompoundSubscriptions.CompoundHolder memory holder;\n\n\n\n holder= subscriptionsContract.getHolder(_user);\n\n\n\n uint currRatio = getSafetyRatio(_user);\n\n\n\n if (_method == Method.Repay) {\n\n return (currRatio < holder.maxRatio, currRatio);\n\n } else if (_method == Method.Boost) {\n\n return (currRatio > holder.minRatio, currRatio);\n\n }\n\n }\n\n\n\n /// @notice Calculates gas cost (in Eth) of tx\n\n /// @dev Gas price is limited to MAX_GAS_PRICE to prevent attack of draining user CDP\n\n /// @param _gasAmount Amount of gas used for the tx\n\n function calcGasCost(uint _gasAmount) public view returns (uint) {\n\n uint gasPrice = tx.gasprice <= MAX_GAS_PRICE ? tx.gasprice : MAX_GAS_PRICE;\n\n\n\n return mul(gasPrice, _gasAmount);\n\n }\n\n\n\n/******************* OWNER ONLY OPERATIONS ********************************/\n\n\n\n /// @notice Allows owner to change gas cost for boost operation, but only up to 3 millions\n\n /// @param _gasCost New gas cost for boost method\n\n function changeBoostGasCost(uint _gasCost) public onlyOwner {\n\n require(_gasCost < 3000000);\n\n\n\n BOOST_GAS_COST = _gasCost;\n\n }\n\n\n\n /// @notice Allows owner to change gas cost for repay operation, but only up to 3 millions\n\n /// @param _gasCost New gas cost for repay method\n\n function changeRepayGasCost(uint _gasCost) public onlyOwner {\n\n require(_gasCost < 3000000);\n\n\n\n REPAY_GAS_COST = _gasCost;\n\n }\n\n\n\n /// @notice If any tokens gets stuck in the contract owner can withdraw it\n\n /// @param _tokenAddress Address of the ERC20 token\n\n /// @param _to Address of the receiver\n\n /// @param _amount The amount to be sent\n\n function transferERC20(address _tokenAddress, address _to, uint _amount) public onlyOwner {\n\n ERC20(_tokenAddress).safeTransfer(_to, _amount);\n\n }\n\n\n\n /// @notice If any Eth gets stuck in the contract owner can withdraw it\n\n /// @param _to Address of the receiver\n\n /// @param _amount The amount to be sent\n\n function transferEth(address payable _to, uint _amount) public onlyOwner {\n\n _to.transfer(_amount);\n\n }\n\n}\n\ncontract CompoundSaverHelper is DSMath, Exponential {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n address payable public constant WALLET_ADDR = 0x322d58b9E75a6918f7e7849AEe0fF09369977e08;\n\n address public constant DISCOUNT_ADDR = 0x1b14E8D511c9A4395425314f849bD737BAF8208F;\n\n\n\n uint public constant MANUAL_SERVICE_FEE = 400; // 0.25% Fee\n\n uint public constant AUTOMATIC_SERVICE_FEE = 333; // 0.3% Fee\n\n\n\n address public constant ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n address public constant CETH_ADDRESS = 0x4Ddc2D193948926D02f9B1fE9e1daa0718270ED5;\n\n address public constant COMPTROLLER = 0x3d9819210A31b4961b30EF54bE2aeD79B9c9Cd3B;\n\n\n\n address public constant COMPOUND_LOGGER = 0x3DD0CDf5fFA28C6847B4B276e2fD256046a44bb7;\n\n\n\n address public constant BOT_REGISTRY_ADDRESS = 0x637726f8b08a7ABE3aE3aCaB01A80E2d8ddeF77B;\n\n\n\n /// @notice Helper method to payback the Compound debt\n\n /// @dev If amount is bigger it will repay the whole debt and send the extra to the _user\n\n /// @param _amount Amount of tokens we want to repay\n\n /// @param _cBorrowToken Ctoken address we are repaying\n\n /// @param _borrowToken Token address we are repaying\n\n /// @param _user Owner of the compound position we are paying back\n\n function paybackDebt(uint _amount, address _cBorrowToken, address _borrowToken, address payable _user) internal {\n\n uint wholeDebt = CTokenInterface(_cBorrowToken).borrowBalanceCurrent(address(this));\n\n\n\n if (_amount > wholeDebt) {\n\n if (_borrowToken == ETH_ADDRESS) {\n\n _user.transfer((_amount - wholeDebt));\n\n } else {\n\n ERC20(_borrowToken).safeTransfer(_user, (_amount - wholeDebt));\n\n }\n\n\n\n _amount = wholeDebt;\n\n }\n\n\n\n approveCToken(_borrowToken, _cBorrowToken);\n\n\n\n if (_borrowToken == ETH_ADDRESS) {\n\n CEtherInterface(_cBorrowToken).repayBorrow{value: _amount}();\n\n } else {\n\n require(CTokenInterface(_cBorrowToken).repayBorrow(_amount) == 0);\n\n }\n\n }\n\n\n\n /// @notice Calculates the fee amount\n\n /// @param _amount Amount that is converted\n\n /// @param _user Actuall user addr not DSProxy\n\n /// @param _gasCost Ether amount of gas we are spending for tx\n\n /// @param _cTokenAddr CToken addr. of token we are getting for the fee\n\n /// @return feeAmount The amount we took for the fee\n\n function getFee(uint _amount, address _user, uint _gasCost, address _cTokenAddr) internal returns (uint feeAmount) {\n\n uint fee = MANUAL_SERVICE_FEE;\n\n\n\n if (BotRegistry(BOT_REGISTRY_ADDRESS).botList(tx.origin)) {\n\n fee = AUTOMATIC_SERVICE_FEE;\n\n }\n\n\n\n address tokenAddr = getUnderlyingAddr(_cTokenAddr);\n\n\n\n if (Discount(DISCOUNT_ADDR).isCustomFeeSet(_user)) {\n\n fee = Discount(DISCOUNT_ADDR).getCustomServiceFee(_user);\n\n }\n\n\n\n feeAmount = (fee == 0) ? 0 : (_amount / fee);\n\n\n\n if (_gasCost != 0) {\n\n address oracle = ComptrollerInterface(COMPTROLLER).oracle();\n\n\n\n uint usdTokenPrice = CompoundOracleInterface(oracle).getUnderlyingPrice(_cTokenAddr);\n\n uint ethPrice = CompoundOracleInterface(oracle).getUnderlyingPrice(CETH_ADDRESS);\n\n\n\n uint tokenPriceInEth = wdiv(usdTokenPrice, ethPrice);\n\n\n\n _gasCost = wdiv(_gasCost, tokenPriceInEth);\n\n\n\n feeAmount = add(feeAmount, _gasCost);\n\n }\n\n\n\n // fee can't go over 20% of the whole amount\n\n if (feeAmount > (_amount / 5)) {\n\n feeAmount = _amount / 5;\n\n }\n\n\n\n if (tokenAddr == ETH_ADDRESS) {\n\n WALLET_ADDR.transfer(feeAmount);\n\n } else {\n\n ERC20(tokenAddr).safeTransfer(WALLET_ADDR, feeAmount);\n\n }\n\n }\n\n\n\n /// @notice Calculates the gas cost of transaction and send it to wallet\n\n /// @param _amount Amount that is converted\n\n /// @param _gasCost Ether amount of gas we are spending for tx\n\n /// @param _cTokenAddr CToken addr. of token we are getting for the fee\n\n /// @return feeAmount The amount we took for the fee\n\n function getGasCost(uint _amount, uint _gasCost, address _cTokenAddr) internal returns (uint feeAmount) {\n\n address tokenAddr = getUnderlyingAddr(_cTokenAddr);\n\n\n\n if (_gasCost != 0) {\n\n address oracle = ComptrollerInterface(COMPTROLLER).oracle();\n\n\n\n uint usdTokenPrice = CompoundOracleInterface(oracle).getUnderlyingPrice(_cTokenAddr);\n\n uint ethPrice = CompoundOracleInterface(oracle).getUnderlyingPrice(CETH_ADDRESS);\n\n\n\n uint tokenPriceInEth = wdiv(usdTokenPrice, ethPrice);\n\n\n\n feeAmount = wdiv(_gasCost, tokenPriceInEth);\n\n }\n\n\n\n // fee can't go over 20% of the whole amount\n\n if (feeAmount > (_amount / 5)) {\n\n feeAmount = _amount / 5;\n\n }\n\n\n\n if (tokenAddr == ETH_ADDRESS) {\n\n WALLET_ADDR.transfer(feeAmount);\n\n } else {\n\n ERC20(tokenAddr).safeTransfer(WALLET_ADDR, feeAmount);\n\n }\n\n }\n\n\n\n /// @notice Enters the market for the collatera and borrow tokens\n\n /// @param _cTokenAddrColl Collateral address we are entering the market in\n\n /// @param _cTokenAddrBorrow Borrow address we are entering the market in\n\n function enterMarket(address _cTokenAddrColl, address _cTokenAddrBorrow) internal {\n\n address[] memory markets = new address[](2);\n\n markets[0] = _cTokenAddrColl;\n\n markets[1] = _cTokenAddrBorrow;\n\n\n\n ComptrollerInterface(COMPTROLLER).enterMarkets(markets);\n\n }\n\n\n\n /// @notice Approves CToken contract to pull underlying tokens from the DSProxy\n\n /// @param _tokenAddr Token we are trying to approve\n\n /// @param _cTokenAddr Address which will gain the approval\n\n function approveCToken(address _tokenAddr, address _cTokenAddr) internal {\n\n if (_tokenAddr != ETH_ADDRESS) {\n\n ERC20(_tokenAddr).safeApprove(_cTokenAddr, uint(-1));\n\n }\n\n }\n\n\n\n /// @notice Returns the underlying address of the cToken asset\n\n /// @param _cTokenAddress cToken address\n\n /// @return Token address of the cToken specified\n\n function getUnderlyingAddr(address _cTokenAddress) internal returns (address) {\n\n if (_cTokenAddress == CETH_ADDRESS) {\n\n return ETH_ADDRESS;\n\n } else {\n\n return CTokenInterface(_cTokenAddress).underlying();\n\n }\n\n }\n\n\n\n /// @notice Returns the owner of the DSProxy that called the contract\n\n function getUserAddress() internal view returns (address) {\n\n DSProxy proxy = DSProxy(uint160(address(this)));\n\n\n\n return proxy.owner();\n\n }\n\n\n\n /// @notice Returns the maximum amount of collateral available to withdraw\n\n /// @dev Due to rounding errors the result is - 1% wei from the exact amount\n\n /// @param _cCollAddress Collateral we are getting the max value of\n\n /// @param _account Users account\n\n /// @return Returns the max. collateral amount in that token\n\n function getMaxCollateral(address _cCollAddress, address _account) public returns (uint) {\n\n (, uint liquidityInUsd, ) = ComptrollerInterface(COMPTROLLER).getAccountLiquidity(_account);\n\n uint usersBalance = CTokenInterface(_cCollAddress).balanceOfUnderlying(_account);\n\n address oracle = ComptrollerInterface(COMPTROLLER).oracle();\n\n\n\n if (liquidityInUsd == 0) return usersBalance;\n\n\n\n CTokenInterface(_cCollAddress).accrueInterest();\n\n\n\n (, uint collFactorMantissa) = ComptrollerInterface(COMPTROLLER).markets(_cCollAddress);\n\n Exp memory collateralFactor = Exp({mantissa: collFactorMantissa});\n\n\n\n (, uint tokensToUsd) = divScalarByExpTruncate(liquidityInUsd, collateralFactor);\n\n\n\n uint usdPrice = CompoundOracleInterface(oracle).getUnderlyingPrice(_cCollAddress);\n\n uint liqInToken = wdiv(tokensToUsd, usdPrice);\n\n\n\n if (liqInToken > usersBalance) return usersBalance;\n\n\n\n return sub(liqInToken, (liqInToken / 100)); // cut off 1% due to rounding issues\n\n }\n\n\n\n /// @notice Returns the maximum amount of borrow amount available\n\n /// @dev Due to rounding errors the result is - 1% wei from the exact amount\n\n /// @param _cBorrowAddress Borrow token we are getting the max value of\n\n /// @param _account Users account\n\n /// @return Returns the max. borrow amount in that token\n\n function getMaxBorrow(address _cBorrowAddress, address _account) public returns (uint) {\n\n (, uint liquidityInUsd, ) = ComptrollerInterface(COMPTROLLER).getAccountLiquidity(_account);\n\n address oracle = ComptrollerInterface(COMPTROLLER).oracle();\n\n\n\n CTokenInterface(_cBorrowAddress).accrueInterest();\n\n\n\n uint usdPrice = CompoundOracleInterface(oracle).getUnderlyingPrice(_cBorrowAddress);\n\n uint liquidityInToken = wdiv(liquidityInUsd, usdPrice);\n\n\n\n return sub(liquidityInToken, (liquidityInToken / 100)); // cut off 1% due to rounding issues\n\n }\n\n}\n\ncontract CompoundImportFlashLoan is FlashLoanReceiverBase {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n ILendingPoolAddressesProvider public LENDING_POOL_ADDRESS_PROVIDER = ILendingPoolAddressesProvider(0x24a42fD28C976A61Df5D00D0599C34c4f90748c8);\n\n\n\n address public constant COMPOUND_BORROW_PROXY = 0xb7EDC39bE76107e2Cc645f0f6a3D164f5e173Ee2;\n\n\n\n address public owner;\n\n\n\n constructor()\n\n FlashLoanReceiverBase(LENDING_POOL_ADDRESS_PROVIDER)\n\n public {\n\n owner = msg.sender;\n\n }\n\n\n\n /// @notice Called by Aave when sending back the FL amount\n\n /// @param _reserve The address of the borrowed token\n\n /// @param _amount Amount of FL tokens received\n\n /// @param _fee FL Aave fee\n\n /// @param _params The params that are sent from the original FL caller contract\n\n function executeOperation(\n\n address _reserve,\n\n uint256 _amount,\n\n uint256 _fee,\n\n bytes calldata _params)\n\n external override {\n\n\n\n (\n\n address cCollateralToken,\n\n address cBorrowToken,\n\n address user,\n\n address proxy\n\n )\n\n = abi.decode(_params, (address,address,address,address));\n\n\n\n // approve FL tokens so we can repay them\n\n ERC20(_reserve).safeApprove(cBorrowToken, uint(-1));\n\n\n\n // repay compound debt\n\n require(CTokenInterface(cBorrowToken).repayBorrowBehalf(user, uint(-1)) == 0, \"Repay borrow behalf fail\");\n\n\n\n // transfer cTokens to proxy\n\n uint cTokenBalance = CTokenInterface(cCollateralToken).balanceOf(user);\n\n require(CTokenInterface(cCollateralToken).transferFrom(user, proxy, cTokenBalance));\n\n\n\n // borrow\n\n bytes memory proxyData = getProxyData(cCollateralToken, cBorrowToken, _reserve, (_amount + _fee));\n\n DSProxyInterface(proxy).execute(COMPOUND_BORROW_PROXY, proxyData);\n\n\n\n // Repay the loan with the money DSProxy sent back\n\n transferFundsBackToPoolInternal(_reserve, _amount.add(_fee));\n\n }\n\n\n\n /// @notice Formats function data call so we can call it through DSProxy\n\n /// @param _cCollToken CToken address of collateral\n\n /// @param _cBorrowToken CToken address we will borrow\n\n /// @param _borrowToken Token address we will borrow\n\n /// @param _amount Amount that will be borrowed\n\n /// @return proxyData Formated function call data\n\n function getProxyData(address _cCollToken, address _cBorrowToken, address _borrowToken, uint _amount) internal pure returns (bytes memory proxyData) {\n\n proxyData = abi.encodeWithSignature(\n\n \"borrow(address,address,address,uint256)\",\n\n _cCollToken, _cBorrowToken, _borrowToken, _amount);\n\n }\n\n\n\n function withdrawStuckFunds(address _tokenAddr, uint _amount) public {\n\n require(owner == msg.sender, \"Must be owner\");\n\n\n\n if (_tokenAddr == 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE) {\n\n msg.sender.transfer(_amount);\n\n } else {\n\n ERC20(_tokenAddr).safeTransfer(owner, _amount);\n\n }\n\n }\n\n}\n\ncontract CompoundImportTaker is CompoundSaverHelper, ProxyPermission, GasBurner {\n\n\n\n ILendingPool public constant lendingPool = ILendingPool(0x398eC7346DcD622eDc5ae82352F02bE94C62d119);\n\n\n\n address payable public constant COMPOUND_IMPORT_FLASH_LOAN = 0x0a9238e14d5A20CDb03811B12D1984587C3CE9a0;\n\n address public constant PROXY_REGISTRY_ADDRESS = 0x4678f0a6958e4D2Bc4F1BAF7Bc52E8F3564f3fE4;\n\n\n\n DefisaverLogger public constant logger = DefisaverLogger(0x5c55B921f590a89C1Ebe84dF170E655a82b62126);\n\n\n\n /// @notice Starts the process to move users position 1 collateral and 1 borrow\n\n /// @dev User must approve COMPOUND_IMPORT_FLASH_LOAN to pull _cCollateralToken\n\n /// @param _cCollateralToken Collateral we are moving to DSProxy\n\n /// @param _cBorrowToken Borrow token we are moving to DSProxy\n\n function importLoan(address _cCollateralToken, address _cBorrowToken) external burnGas(20) {\n\n address proxy = getProxy();\n\n\n\n uint loanAmount = CTokenInterface(_cBorrowToken).borrowBalanceCurrent(msg.sender);\n\n bytes memory paramsData = abi.encode(_cCollateralToken, _cBorrowToken, msg.sender, proxy);\n\n\n\n givePermission(COMPOUND_IMPORT_FLASH_LOAN);\n\n\n\n lendingPool.flashLoan(COMPOUND_IMPORT_FLASH_LOAN, getUnderlyingAddr(_cBorrowToken), loanAmount, paramsData);\n\n\n\n removePermission(COMPOUND_IMPORT_FLASH_LOAN);\n\n\n\n logger.Log(address(this), msg.sender, \"CompoundImport\", abi.encode(loanAmount, 0, _cCollateralToken));\n\n }\n\n\n\n /// @notice Gets proxy address, if user doesn't has DSProxy build it\n\n /// @return proxy DsProxy address\n\n function getProxy() internal returns (address proxy) {\n\n proxy = ProxyRegistryInterface(PROXY_REGISTRY_ADDRESS).proxies(msg.sender);\n\n\n\n if (proxy == address(0)) {\n\n proxy = ProxyRegistryInterface(PROXY_REGISTRY_ADDRESS).build(msg.sender);\n\n }\n\n\n\n }\n\n}\n\ncontract SaverExchangeCore is SaverExchangeHelper, DSMath {\n\n\n\n // first is empty to keep the legacy order in place\n\n enum ExchangeType { _, OASIS, KYBER, UNISWAP, ZEROX }\n\n\n\n enum ActionType { SELL, BUY }\n\n\n\n struct ExchangeData {\n\n address srcAddr;\n\n address destAddr;\n\n uint srcAmount;\n\n uint destAmount;\n\n uint minPrice;\n\n address wrapper;\n\n address exchangeAddr;\n\n bytes callData;\n\n uint256 price0x;\n\n }\n\n\n\n /// @notice Internal method that preforms a sell on 0x/on-chain\n\n /// @dev Usefull for other DFS contract to integrate for exchanging\n\n /// @param exData Exchange data struct\n\n /// @return (address, uint) Address of the wrapper used and destAmount\n\n function _sell(ExchangeData memory exData) internal returns (address, uint) {\n\n\n\n address wrapper;\n\n uint swapedTokens;\n\n bool success;\n\n uint tokensLeft = exData.srcAmount;\n\n\n\n // if selling eth, convert to weth\n\n if (exData.srcAddr == KYBER_ETH_ADDRESS) {\n\n exData.srcAddr = ethToWethAddr(exData.srcAddr);\n\n TokenInterface(WETH_ADDRESS).deposit.value(exData.srcAmount)();\n\n }\n\n\n\n // Try 0x first and then fallback on specific wrapper\n\n if (exData.price0x > 0) {\n\n approve0xProxy(exData.srcAddr, exData.srcAmount);\n\n\n\n uint ethAmount = exData.srcAddr == WETH_ADDRESS ? msg.value - exData.srcAmount : msg.value;\n\n (success, swapedTokens, tokensLeft) = takeOrder(exData, ethAmount, ActionType.SELL);\n\n\n\n if (success) {\n\n wrapper = exData.exchangeAddr;\n\n }\n\n }\n\n\n\n // fallback to desired wrapper if 0x failed\n\n if (!success) {\n\n swapedTokens = saverSwap(exData, ActionType.SELL);\n\n wrapper = exData.wrapper;\n\n }\n\n\n\n require(getBalance(exData.destAddr) >= wmul(exData.minPrice, exData.srcAmount), \"Final amount isn't correct\");\n\n\n\n // if anything is left in weth, pull it to user as eth\n\n if (getBalance(WETH_ADDRESS) > 0) {\n\n TokenInterface(WETH_ADDRESS).withdraw(\n\n TokenInterface(WETH_ADDRESS).balanceOf(address(this))\n\n );\n\n }\n\n\n\n return (wrapper, swapedTokens);\n\n }\n\n\n\n /// @notice Internal method that preforms a buy on 0x/on-chain\n\n /// @dev Usefull for other DFS contract to integrate for exchanging\n\n /// @param exData Exchange data struct\n\n /// @return (address, uint) Address of the wrapper used and srcAmount\n\n function _buy(ExchangeData memory exData) internal returns (address, uint) {\n\n\n\n address wrapper;\n\n uint swapedTokens;\n\n bool success;\n\n\n\n require(exData.destAmount != 0, \"Dest amount must be specified\");\n\n\n\n // if selling eth, convert to weth\n\n if (exData.srcAddr == KYBER_ETH_ADDRESS) {\n\n exData.srcAddr = ethToWethAddr(exData.srcAddr);\n\n TokenInterface(WETH_ADDRESS).deposit.value(exData.srcAmount)();\n\n }\n\n\n\n if (exData.price0x > 0) {\n\n approve0xProxy(exData.srcAddr, exData.srcAmount);\n\n\n\n uint ethAmount = exData.srcAddr == WETH_ADDRESS ? msg.value - exData.srcAmount : msg.value;\n\n (success, swapedTokens,) = takeOrder(exData, ethAmount, ActionType.BUY);\n\n\n\n if (success) {\n\n wrapper = exData.exchangeAddr;\n\n }\n\n }\n\n\n\n // fallback to desired wrapper if 0x failed\n\n if (!success) {\n\n swapedTokens = saverSwap(exData, ActionType.BUY);\n\n wrapper = exData.wrapper;\n\n }\n\n\n\n require(getBalance(exData.destAddr) >= exData.destAmount, \"Final amount isn't correct\");\n\n\n\n // if anything is left in weth, pull it to user as eth\n\n if (getBalance(WETH_ADDRESS) > 0) {\n\n TokenInterface(WETH_ADDRESS).withdraw(\n\n TokenInterface(WETH_ADDRESS).balanceOf(address(this))\n\n );\n\n }\n\n\n\n return (wrapper, getBalance(exData.destAddr));\n\n }\n\n\n\n /// @notice Takes order from 0x and returns bool indicating if it is successful\n\n /// @param _exData Exchange data\n\n /// @param _ethAmount Ether fee needed for 0x order\n\n function takeOrder(\n\n ExchangeData memory _exData,\n\n uint256 _ethAmount,\n\n ActionType _type\n\n ) private returns (bool success, uint256, uint256) {\n\n\n\n // write in the exact amount we are selling/buing in an order\n\n if (_type == ActionType.SELL) {\n\n writeUint256(_exData.callData, 36, _exData.srcAmount);\n\n } else {\n\n writeUint256(_exData.callData, 36, _exData.destAmount);\n\n }\n\n\n\n if (ZrxAllowlist(ZRX_ALLOWLIST_ADDR).isNonPayableAddr(_exData.exchangeAddr)) {\n\n _ethAmount = 0;\n\n }\n\n\n\n uint256 tokensBefore = getBalance(_exData.destAddr);\n\n\n\n if (ZrxAllowlist(ZRX_ALLOWLIST_ADDR).isZrxAddr(_exData.exchangeAddr)) {\n\n (success, ) = _exData.exchangeAddr.call{value: _ethAmount}(_exData.callData);\n\n } else {\n\n success = false;\n\n }\n\n\n\n uint256 tokensSwaped = 0;\n\n uint256 tokensLeft = _exData.srcAmount;\n\n\n\n if (success) {\n\n // check to see if any _src tokens are left over after exchange\n\n tokensLeft = getBalance(_exData.srcAddr);\n\n\n\n // convert weth -> eth if needed\n\n if (_exData.destAddr == KYBER_ETH_ADDRESS) {\n\n TokenInterface(WETH_ADDRESS).withdraw(\n\n TokenInterface(WETH_ADDRESS).balanceOf(address(this))\n\n );\n\n }\n\n\n\n // get the current balance of the swaped tokens\n\n tokensSwaped = getBalance(_exData.destAddr) - tokensBefore;\n\n }\n\n\n\n return (success, tokensSwaped, tokensLeft);\n\n }\n\n\n\n /// @notice Calls wraper contract for exchage to preform an on-chain swap\n\n /// @param _exData Exchange data struct\n\n /// @param _type Type of action SELL|BUY\n\n /// @return swapedTokens For Sell that the destAmount, for Buy thats the srcAmount\n\n function saverSwap(ExchangeData memory _exData, ActionType _type) internal returns (uint swapedTokens) {\n\n require(SaverExchangeRegistry(SAVER_EXCHANGE_REGISTRY).isWrapper(_exData.wrapper), \"Wrapper is not valid\");\n\n\n\n uint ethValue = 0;\n\n\n\n ERC20(_exData.srcAddr).safeTransfer(_exData.wrapper, _exData.srcAmount);\n\n\n\n if (_type == ActionType.SELL) {\n\n swapedTokens = ExchangeInterfaceV2(_exData.wrapper).\n\n sell{value: ethValue}(_exData.srcAddr, _exData.destAddr, _exData.srcAmount);\n\n } else {\n\n swapedTokens = ExchangeInterfaceV2(_exData.wrapper).\n\n buy{value: ethValue}(_exData.srcAddr, _exData.destAddr, _exData.destAmount);\n\n }\n\n }\n\n\n\n function writeUint256(bytes memory _b, uint256 _index, uint _input) internal pure {\n\n if (_b.length < _index + 32) {\n\n revert(\"Incorrent lengt while writting bytes32\");\n\n }\n\n\n\n bytes32 input = bytes32(_input);\n\n\n\n _index += 32;\n\n\n\n // Read the bytes32 from array memory\n\n assembly {\n\n mstore(add(_b, _index), input)\n\n }\n\n }\n\n\n\n /// @notice Converts Kybers Eth address -> Weth\n\n /// @param _src Input address\n\n function ethToWethAddr(address _src) internal pure returns (address) {\n\n return _src == KYBER_ETH_ADDRESS ? WETH_ADDRESS : _src;\n\n }\n\n\n\n function packExchangeData(ExchangeData memory _exData) public pure returns(bytes memory) {\n\n // splitting in two different bytes and encoding all because of stack too deep in decoding part\n\n\n\n bytes memory part1 = abi.encode(\n\n _exData.srcAddr,\n\n _exData.destAddr,\n\n _exData.srcAmount,\n\n _exData.destAmount\n\n );\n\n\n\n bytes memory part2 = abi.encode(\n\n _exData.minPrice,\n\n _exData.wrapper,\n\n _exData.exchangeAddr,\n\n _exData.callData,\n\n _exData.price0x\n\n );\n\n\n\n\n\n return abi.encode(part1, part2);\n\n }\n\n\n\n function unpackExchangeData(bytes memory _data) public pure returns(ExchangeData memory _exData) {\n\n (\n\n bytes memory part1,\n\n bytes memory part2\n\n ) = abi.decode(_data, (bytes,bytes));\n\n\n\n (\n\n _exData.srcAddr,\n\n _exData.destAddr,\n\n _exData.srcAmount,\n\n _exData.destAmount\n\n ) = abi.decode(part1, (address,address,uint256,uint256));\n\n\n\n (\n\n _exData.minPrice,\n\n _exData.wrapper,\n\n _exData.exchangeAddr,\n\n _exData.callData,\n\n _exData.price0x\n\n )\n\n = abi.decode(part2, (uint256,address,address,bytes,uint256));\n\n }\n\n\n\n // solhint-disable-next-line no-empty-blocks\n\n receive() external virtual payable {}\n\n}\n\ncontract KyberWrapper is DSMath, ExchangeInterfaceV2, AdminAuth {\n\n\n\n address public constant KYBER_ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n address public constant KYBER_INTERFACE = 0x9AAb3f75489902f3a48495025729a0AF77d4b11e;\n\n address payable public constant WALLET_ID = 0x322d58b9E75a6918f7e7849AEe0fF09369977e08;\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n /// @notice Sells a _srcAmount of tokens at Kyber\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _srcAmount From amount\n\n /// @return uint Destination amount\n\n function sell(address _srcAddr, address _destAddr, uint _srcAmount) external override payable returns (uint) {\n\n ERC20 srcToken = ERC20(_srcAddr);\n\n ERC20 destToken = ERC20(_destAddr);\n\n\n\n KyberNetworkProxyInterface kyberNetworkProxy = KyberNetworkProxyInterface(KYBER_INTERFACE);\n\n\n\n if (_srcAddr != KYBER_ETH_ADDRESS) {\n\n srcToken.safeApprove(address(kyberNetworkProxy), _srcAmount);\n\n }\n\n\n\n uint destAmount = kyberNetworkProxy.trade{value: msg.value}(\n\n srcToken,\n\n _srcAmount,\n\n destToken,\n\n msg.sender,\n\n uint(-1),\n\n 0,\n\n WALLET_ID\n\n );\n\n\n\n return destAmount;\n\n }\n\n\n\n /// @notice Buys a _destAmount of tokens at Kyber\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _destAmount To amount\n\n /// @return uint srcAmount\n\n function buy(address _srcAddr, address _destAddr, uint _destAmount) external override payable returns(uint) {\n\n ERC20 srcToken = ERC20(_srcAddr);\n\n ERC20 destToken = ERC20(_destAddr);\n\n\n\n uint srcAmount = 0;\n\n if (_srcAddr != KYBER_ETH_ADDRESS) {\n\n srcAmount = srcToken.balanceOf(address(this));\n\n } else {\n\n srcAmount = msg.value;\n\n }\n\n\n\n KyberNetworkProxyInterface kyberNetworkProxy = KyberNetworkProxyInterface(KYBER_INTERFACE);\n\n\n\n if (_srcAddr != KYBER_ETH_ADDRESS) {\n\n srcToken.safeApprove(address(kyberNetworkProxy), srcAmount);\n\n }\n\n\n\n uint destAmount = kyberNetworkProxy.trade{value: msg.value}(\n\n srcToken,\n\n srcAmount,\n\n destToken,\n\n msg.sender,\n\n _destAmount,\n\n 0,\n\n WALLET_ID\n\n );\n\n\n\n require(destAmount == _destAmount, \"Wrong dest amount\");\n\n\n\n uint srcAmountAfter = 0;\n\n\n\n if (_srcAddr != KYBER_ETH_ADDRESS) {\n\n srcAmountAfter = srcToken.balanceOf(address(this));\n\n } else {\n\n srcAmountAfter = address(this).balance;\n\n }\n\n\n\n // Send the leftover from the source token back\n\n sendLeftOver(_srcAddr);\n\n\n\n return (srcAmount - srcAmountAfter);\n\n }\n\n\n\n /// @notice Return a rate for which we can sell an amount of tokens\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _srcAmount From amount\n\n /// @return rate Rate\n\n function getSellRate(address _srcAddr, address _destAddr, uint _srcAmount) public override view returns (uint rate) {\n\n (rate, ) = KyberNetworkProxyInterface(KYBER_INTERFACE)\n\n .getExpectedRate(ERC20(_srcAddr), ERC20(_destAddr), _srcAmount);\n\n\n\n // multiply with decimal difference in src token\n\n rate = rate * (10**(18 - getDecimals(_srcAddr)));\n\n // divide with decimal difference in dest token\n\n rate = rate / (10**(18 - getDecimals(_destAddr)));\n\n }\n\n\n\n /// @notice Return a rate for which we can buy an amount of tokens\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _destAmount To amount\n\n /// @return rate Rate\n\n function getBuyRate(address _srcAddr, address _destAddr, uint _destAmount) public override view returns (uint rate) {\n\n uint256 srcRate = getSellRate(_srcAddr, _destAddr, _destAmount);\n\n uint256 srcAmount = wmul(_destAmount, srcRate);\n\n\n\n rate = getSellRate(_destAddr, _srcAddr, srcAmount);\n\n\n\n // increase rate by 3% too account for inaccuracy between sell/buy conversion\n\n rate = rate + (rate / 30);\n\n }\n\n\n\n /// @notice Send any leftover tokens, we use to clear out srcTokens after buy\n\n /// @param _srcAddr Source token address\n\n function sendLeftOver(address _srcAddr) internal {\n\n msg.sender.transfer(address(this).balance);\n\n\n\n if (_srcAddr != KYBER_ETH_ADDRESS) {\n\n ERC20(_srcAddr).safeTransfer(msg.sender, ERC20(_srcAddr).balanceOf(address(this)));\n\n }\n\n }\n\n\n\n receive() payable external {}\n\n\n\n function getDecimals(address _token) internal view returns (uint256) {\n\n if (_token == KYBER_ETH_ADDRESS) return 18;\n\n\n\n return ERC20(_token).decimals();\n\n }\n\n}\n\ncontract OasisTradeWrapper is DSMath, ExchangeInterfaceV2, AdminAuth {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n address public constant OTC_ADDRESS = 0x794e6e91555438aFc3ccF1c5076A74F42133d08D;\n\n address public constant WETH_ADDRESS = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;\n\n address public constant KYBER_ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n\n\n /// @notice Sells a _srcAmount of tokens at Oasis\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _srcAmount From amount\n\n /// @return uint Destination amount\n\n function sell(address _srcAddr, address _destAddr, uint _srcAmount) external override payable returns (uint) {\n\n address srcAddr = ethToWethAddr(_srcAddr);\n\n address destAddr = ethToWethAddr(_destAddr);\n\n\n\n ERC20(srcAddr).safeApprove(OTC_ADDRESS, _srcAmount);\n\n\n\n uint destAmount = OasisInterface(OTC_ADDRESS).sellAllAmount(srcAddr, _srcAmount, destAddr, 0);\n\n\n\n // convert weth -> eth and send back\n\n if (destAddr == WETH_ADDRESS) {\n\n TokenInterface(WETH_ADDRESS).withdraw(destAmount);\n\n msg.sender.transfer(destAmount);\n\n } else {\n\n ERC20(destAddr).safeTransfer(msg.sender, destAmount);\n\n }\n\n\n\n return destAmount;\n\n }\n\n\n\n /// @notice Buys a _destAmount of tokens at Oasis\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _destAmount To amount\n\n /// @return uint srcAmount\n\n function buy(address _srcAddr, address _destAddr, uint _destAmount) external override payable returns(uint) {\n\n address srcAddr = ethToWethAddr(_srcAddr);\n\n address destAddr = ethToWethAddr(_destAddr);\n\n\n\n ERC20(srcAddr).safeApprove(OTC_ADDRESS, uint(-1));\n\n\n\n uint srcAmount = OasisInterface(OTC_ADDRESS).buyAllAmount(destAddr, _destAmount, srcAddr, uint(-1));\n\n\n\n // convert weth -> eth and send back\n\n if (destAddr == WETH_ADDRESS) {\n\n TokenInterface(WETH_ADDRESS).withdraw(_destAmount);\n\n msg.sender.transfer(_destAmount);\n\n } else {\n\n ERC20(destAddr).safeTransfer(msg.sender, _destAmount);\n\n }\n\n\n\n // Send the leftover from the source token back\n\n sendLeftOver(srcAddr);\n\n\n\n return srcAmount;\n\n }\n\n\n\n /// @notice Return a rate for which we can sell an amount of tokens\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _srcAmount From amount\n\n /// @return uint Rate\n\n function getSellRate(address _srcAddr, address _destAddr, uint _srcAmount) public override view returns (uint) {\n\n address srcAddr = ethToWethAddr(_srcAddr);\n\n address destAddr = ethToWethAddr(_destAddr);\n\n\n\n return wdiv(OasisInterface(OTC_ADDRESS).getBuyAmount(destAddr, srcAddr, _srcAmount), _srcAmount);\n\n }\n\n\n\n\n\n /// @notice Return a rate for which we can buy an amount of tokens\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _destAmount To amount\n\n /// @return uint Rate\n\n function getBuyRate(address _srcAddr, address _destAddr, uint _destAmount) public override view returns (uint) {\n\n address srcAddr = ethToWethAddr(_srcAddr);\n\n address destAddr = ethToWethAddr(_destAddr);\n\n\n\n return wdiv(OasisInterface(OTC_ADDRESS).getPayAmount(srcAddr, destAddr, _destAmount), _destAmount);\n\n }\n\n\n\n /// @notice Send any leftover tokens, we use to clear out srcTokens after buy\n\n /// @param _srcAddr Source token address\n\n function sendLeftOver(address _srcAddr) internal {\n\n msg.sender.transfer(address(this).balance);\n\n\n\n if (_srcAddr != KYBER_ETH_ADDRESS) {\n\n ERC20(_srcAddr).safeTransfer(msg.sender, ERC20(_srcAddr).balanceOf(address(this)));\n\n }\n\n }\n\n\n\n /// @notice Converts Kybers Eth address -> Weth\n\n /// @param _src Input address\n\n function ethToWethAddr(address _src) internal pure returns (address) {\n\n return _src == KYBER_ETH_ADDRESS ? WETH_ADDRESS : _src;\n\n }\n\n\n\n\n\n receive() payable external {}\n\n}\n\ncontract UniswapV2Wrapper is DSMath, ExchangeInterfaceV2, AdminAuth {\n\n\n\n address public constant WETH_ADDRESS = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;\n\n address public constant KYBER_ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n UniswapRouterInterface public constant router = UniswapRouterInterface(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n /// @notice Sells a _srcAmount of tokens at UniswapV2\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _srcAmount From amount\n\n /// @return uint Destination amount\n\n function sell(address _srcAddr, address _destAddr, uint _srcAmount) external payable override returns (uint) {\n\n _srcAddr = ethToWethAddr(_srcAddr);\n\n _destAddr = ethToWethAddr(_destAddr);\n\n\n\n uint[] memory amounts;\n\n address[] memory path = new address[](2);\n\n path[0] = _srcAddr;\n\n path[1] = _destAddr;\n\n\n\n ERC20(_srcAddr).safeApprove(address(router), _srcAmount);\n\n\n\n // if we are buying ether\n\n if (_destAddr == WETH_ADDRESS) {\n\n amounts = router.swapExactTokensForETH(_srcAmount, 1, path, msg.sender, block.timestamp + 1);\n\n }\n\n // if we are selling token to token\n\n else {\n\n amounts = router.swapExactTokensForTokens(_srcAmount, 1, path, msg.sender, block.timestamp + 1);\n\n }\n\n\n\n return amounts[amounts.length - 1];\n\n }\n\n\n\n /// @notice Buys a _destAmount of tokens at UniswapV2\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _destAmount To amount\n\n /// @return uint srcAmount\n\n function buy(address _srcAddr, address _destAddr, uint _destAmount) external override payable returns(uint) {\n\n\n\n _srcAddr = ethToWethAddr(_srcAddr);\n\n _destAddr = ethToWethAddr(_destAddr);\n\n\n\n uint[] memory amounts;\n\n address[] memory path = new address[](2);\n\n path[0] = _srcAddr;\n\n path[1] = _destAddr;\n\n\n\n ERC20(_srcAddr).safeApprove(address(router), uint(-1));\n\n\n\n\n\n // if we are buying ether\n\n if (_destAddr == WETH_ADDRESS) {\n\n amounts = router.swapTokensForExactETH(_destAmount, uint(-1), path, msg.sender, block.timestamp + 1);\n\n }\n\n // if we are buying token to token\n\n else {\n\n amounts = router.swapTokensForExactTokens(_destAmount, uint(-1), path, msg.sender, block.timestamp + 1);\n\n }\n\n\n\n // Send the leftover from the source token back\n\n sendLeftOver(_srcAddr);\n\n\n\n return amounts[0];\n\n }\n\n\n\n /// @notice Return a rate for which we can sell an amount of tokens\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _srcAmount From amount\n\n /// @return uint Rate\n\n function getSellRate(address _srcAddr, address _destAddr, uint _srcAmount) public override view returns (uint) {\n\n _srcAddr = ethToWethAddr(_srcAddr);\n\n _destAddr = ethToWethAddr(_destAddr);\n\n\n\n address[] memory path = new address[](2);\n\n path[0] = _srcAddr;\n\n path[1] = _destAddr;\n\n\n\n uint[] memory amounts = router.getAmountsOut(_srcAmount, path);\n\n return wdiv(amounts[amounts.length - 1], _srcAmount);\n\n }\n\n\n\n /// @notice Return a rate for which we can buy an amount of tokens\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _destAmount To amount\n\n /// @return uint Rate\n\n function getBuyRate(address _srcAddr, address _destAddr, uint _destAmount) public override view returns (uint) {\n\n _srcAddr = ethToWethAddr(_srcAddr);\n\n _destAddr = ethToWethAddr(_destAddr);\n\n\n\n address[] memory path = new address[](2);\n\n path[0] = _srcAddr;\n\n path[1] = _destAddr;\n\n\n\n uint[] memory amounts = router.getAmountsIn(_destAmount, path);\n\n return wdiv(amounts[0], _destAmount);\n\n }\n\n\n\n /// @notice Send any leftover tokens, we use to clear out srcTokens after buy\n\n /// @param _srcAddr Source token address\n\n function sendLeftOver(address _srcAddr) internal {\n\n msg.sender.transfer(address(this).balance);\n\n\n\n if (_srcAddr != KYBER_ETH_ADDRESS) {\n\n ERC20(_srcAddr).safeTransfer(msg.sender, ERC20(_srcAddr).balanceOf(address(this)));\n\n }\n\n }\n\n\n\n /// @notice Converts Kybers Eth address -> Weth\n\n /// @param _src Input address\n\n function ethToWethAddr(address _src) internal pure returns (address) {\n\n return _src == KYBER_ETH_ADDRESS ? WETH_ADDRESS : _src;\n\n }\n\n\n\n receive() payable external {}\n\n}\n\ncontract UniswapWrapper is DSMath, ExchangeInterfaceV2, AdminAuth {\n\n\n\n address public constant WETH_ADDRESS = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;\n\n address public constant KYBER_ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n address public constant UNISWAP_FACTORY = 0xc0a47dFe034B400B47bDaD5FecDa2621de6c4d95;\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n /// @notice Sells a _srcAmount of tokens at Uniswap\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _srcAmount From amount\n\n /// @return uint Destination amount\n\n function sell(address _srcAddr, address _destAddr, uint _srcAmount) external payable override returns (uint) {\n\n address uniswapExchangeAddr;\n\n uint destAmount;\n\n\n\n _srcAddr = ethToWethAddr(_srcAddr);\n\n _destAddr = ethToWethAddr(_destAddr);\n\n\n\n // if we are buying ether\n\n if (_destAddr == WETH_ADDRESS) {\n\n uniswapExchangeAddr = UniswapFactoryInterface(UNISWAP_FACTORY).getExchange(_srcAddr);\n\n\n\n ERC20(_srcAddr).safeApprove(uniswapExchangeAddr, _srcAmount);\n\n\n\n destAmount = UniswapExchangeInterface(uniswapExchangeAddr).\n\n tokenToEthTransferInput(_srcAmount, 1, block.timestamp + 1, msg.sender);\n\n }\n\n // if we are selling token to token\n\n else {\n\n uniswapExchangeAddr = UniswapFactoryInterface(UNISWAP_FACTORY).getExchange(_srcAddr);\n\n\n\n ERC20(_srcAddr).safeApprove(uniswapExchangeAddr, _srcAmount);\n\n\n\n destAmount = UniswapExchangeInterface(uniswapExchangeAddr).\n\n tokenToTokenTransferInput(_srcAmount, 1, 1, block.timestamp + 1, msg.sender, _destAddr);\n\n }\n\n\n\n return destAmount;\n\n }\n\n\n\n /// @notice Buys a _destAmount of tokens at Uniswap\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _destAmount To amount\n\n /// @return uint srcAmount\n\n function buy(address _srcAddr, address _destAddr, uint _destAmount) external override payable returns(uint) {\n\n address uniswapExchangeAddr;\n\n uint srcAmount;\n\n\n\n _srcAddr = ethToWethAddr(_srcAddr);\n\n _destAddr = ethToWethAddr(_destAddr);\n\n\n\n // if we are buying ether\n\n if (_destAddr == WETH_ADDRESS) {\n\n uniswapExchangeAddr = UniswapFactoryInterface(UNISWAP_FACTORY).getExchange(_srcAddr);\n\n\n\n ERC20(_srcAddr).safeApprove(uniswapExchangeAddr, uint(-1));\n\n\n\n srcAmount = UniswapExchangeInterface(uniswapExchangeAddr).\n\n tokenToEthTransferOutput(_destAmount, uint(-1), block.timestamp + 1, msg.sender);\n\n }\n\n // if we are buying token to token\n\n else {\n\n uniswapExchangeAddr = UniswapFactoryInterface(UNISWAP_FACTORY).getExchange(_srcAddr);\n\n\n\n ERC20(_srcAddr).safeApprove(uniswapExchangeAddr, uint(-1));\n\n\n\n srcAmount = UniswapExchangeInterface(uniswapExchangeAddr).\n\n tokenToTokenTransferOutput(_destAmount, uint(-1), uint(-1), block.timestamp + 1, msg.sender, _destAddr);\n\n }\n\n\n\n // Send the leftover from the source token back\n\n sendLeftOver(_srcAddr);\n\n\n\n return srcAmount;\n\n }\n\n\n\n /// @notice Return a rate for which we can sell an amount of tokens\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _srcAmount From amount\n\n /// @return uint Rate\n\n function getSellRate(address _srcAddr, address _destAddr, uint _srcAmount) public override view returns (uint) {\n\n _srcAddr = ethToWethAddr(_srcAddr);\n\n _destAddr = ethToWethAddr(_destAddr);\n\n\n\n if(_srcAddr == WETH_ADDRESS) {\n\n address uniswapTokenAddress = UniswapFactoryInterface(UNISWAP_FACTORY).getExchange(_destAddr);\n\n return wdiv(UniswapExchangeInterface(uniswapTokenAddress).getEthToTokenInputPrice(_srcAmount), _srcAmount);\n\n } else if (_destAddr == WETH_ADDRESS) {\n\n address uniswapTokenAddress = UniswapFactoryInterface(UNISWAP_FACTORY).getExchange(_srcAddr);\n\n return wdiv(UniswapExchangeInterface(uniswapTokenAddress).getTokenToEthInputPrice(_srcAmount), _srcAmount);\n\n } else {\n\n uint ethBought = UniswapExchangeInterface(UniswapFactoryInterface(UNISWAP_FACTORY).getExchange(_srcAddr)).getTokenToEthInputPrice(_srcAmount);\n\n return wdiv(UniswapExchangeInterface(UniswapFactoryInterface(UNISWAP_FACTORY).getExchange(_destAddr)).getEthToTokenInputPrice(ethBought), _srcAmount);\n\n }\n\n }\n\n\n\n /// @notice Return a rate for which we can buy an amount of tokens\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _destAmount To amount\n\n /// @return uint Rate\n\n function getBuyRate(address _srcAddr, address _destAddr, uint _destAmount) public override view returns (uint) {\n\n _srcAddr = ethToWethAddr(_srcAddr);\n\n _destAddr = ethToWethAddr(_destAddr);\n\n\n\n if(_srcAddr == WETH_ADDRESS) {\n\n address uniswapTokenAddress = UniswapFactoryInterface(UNISWAP_FACTORY).getExchange(_destAddr);\n\n return wdiv(UniswapExchangeInterface(uniswapTokenAddress).getEthToTokenOutputPrice(_destAmount), _destAmount);\n\n } else if (_destAddr == WETH_ADDRESS) {\n\n address uniswapTokenAddress = UniswapFactoryInterface(UNISWAP_FACTORY).getExchange(_srcAddr);\n\n return wdiv(UniswapExchangeInterface(uniswapTokenAddress).getTokenToEthOutputPrice(_destAmount), _destAmount);\n\n } else {\n\n uint ethNeeded = UniswapExchangeInterface(UniswapFactoryInterface(UNISWAP_FACTORY).getExchange(_destAddr)).getTokenToEthOutputPrice(_destAmount);\n\n return wdiv(UniswapExchangeInterface(UniswapFactoryInterface(UNISWAP_FACTORY).getExchange(_srcAddr)).getEthToTokenOutputPrice(ethNeeded), _destAmount);\n\n }\n\n }\n\n\n\n /// @notice Send any leftover tokens, we use to clear out srcTokens after buy\n\n /// @param _srcAddr Source token address\n\n function sendLeftOver(address _srcAddr) internal {\n\n msg.sender.transfer(address(this).balance);\n\n\n\n if (_srcAddr != KYBER_ETH_ADDRESS) {\n\n ERC20(_srcAddr).safeTransfer(msg.sender, ERC20(_srcAddr).balanceOf(address(this)));\n\n }\n\n }\n\n\n\n /// @notice Converts Kybers Eth address -> Weth\n\n /// @param _src Input address\n\n function ethToWethAddr(address _src) internal pure returns (address) {\n\n return _src == KYBER_ETH_ADDRESS ? WETH_ADDRESS : _src;\n\n }\n\n\n\n receive() payable external {}\n\n}\n\ncontract DyDxFlashLoanTaker is DydxFlashLoanBase, ProxyPermission {\n\n\n\n address public constant WETH_ADDR = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;\n\n address public constant DEFISAVER_LOGGER = 0x5c55B921f590a89C1Ebe84dF170E655a82b62126;\n\n\n\n /// @notice Takes flash loan for _receiver\n\n /// @dev Receiver must send back WETH + 2 wei after executing transaction\n\n /// @dev Method is meant to be called from proxy and proxy will give authorization to _receiver\n\n /// @param _receiver Address of funds receiver\n\n /// @param _ethAmount ETH amount that needs to be pulled from dydx \n\n /// @param _encodedData Bytes with packed data\n\n function takeLoan(address _receiver, uint256 _ethAmount, bytes memory _encodedData) public {\n\n ISoloMargin solo = ISoloMargin(SOLO_MARGIN_ADDRESS);\n\n\n\n // Get marketId from token address\n\n uint256 marketId = _getMarketIdFromTokenAddress(WETH_ADDR);\n\n\n\n // Calculate repay amount (_amount + (2 wei))\n\n // Approve transfer from\n\n uint256 repayAmount = _getRepaymentAmountInternal(_ethAmount);\n\n ERC20(WETH_ADDR).approve(SOLO_MARGIN_ADDRESS, repayAmount);\n\n\n\n Actions.ActionArgs[] memory operations = new Actions.ActionArgs[](3);\n\n\n\n operations[0] = _getWithdrawAction(marketId, _ethAmount, _receiver);\n\n operations[1] = _getCallAction(\n\n _encodedData,\n\n _receiver\n\n );\n\n operations[2] = _getDepositAction(marketId, repayAmount, address(this));\n\n\n\n Account.Info[] memory accountInfos = new Account.Info[](1);\n\n accountInfos[0] = _getAccountInfo();\n\n\n\n givePermission(_receiver);\n\n solo.operate(accountInfos, operations);\n\n removePermission(_receiver);\n\n\n\n DefisaverLogger(DEFISAVER_LOGGER).Log(address(this), msg.sender, \"DyDxFlashLoanTaken\", abi.encode(_receiver, _ethAmount, _encodedData));\n\n }\n\n}\n\nabstract contract CTokenInterface is ERC20 {\n\n function mint(uint256 mintAmount) external virtual returns (uint256);\n\n\n\n // function mint() external virtual payable;\n\n\n\n function accrueInterest() public virtual returns (uint);\n\n\n\n function redeem(uint256 redeemTokens) external virtual returns (uint256);\n\n\n\n function redeemUnderlying(uint256 redeemAmount) external virtual returns (uint256);\n\n\n\n function borrow(uint256 borrowAmount) external virtual returns (uint256);\n\n\n\n function repayBorrow(uint256 repayAmount) external virtual returns (uint256);\n\n\n\n function repayBorrow() external virtual payable;\n\n\n\n function repayBorrowBehalf(address borrower, uint256 repayAmount) external virtual returns (uint256);\n\n\n\n function repayBorrowBehalf(address borrower) external virtual payable;\n\n\n\n function liquidateBorrow(address borrower, uint256 repayAmount, address cTokenCollateral)\n\n external virtual\n\n returns (uint256);\n\n\n\n function liquidateBorrow(address borrower, address cTokenCollateral) external virtual payable;\n\n\n\n function exchangeRateCurrent() external virtual returns (uint256);\n\n\n\n function supplyRatePerBlock() external virtual returns (uint256);\n\n\n\n function borrowRatePerBlock() external virtual returns (uint256);\n\n\n\n function totalReserves() external virtual returns (uint256);\n\n\n\n function reserveFactorMantissa() external virtual returns (uint256);\n\n\n\n function borrowBalanceCurrent(address account) external virtual returns (uint256);\n\n\n\n function totalBorrowsCurrent() external virtual returns (uint256);\n\n\n\n function getCash() external virtual returns (uint256);\n\n\n\n function balanceOfUnderlying(address owner) external virtual returns (uint256);\n\n\n\n function underlying() external virtual returns (address);\n\n\n\n function getAccountSnapshot(address account) external virtual view returns (uint, uint, uint, uint);\n\n}\n\nabstract contract ISubscriptionsV2 is StaticV2 {\n\n\n\n function getOwner(uint _cdpId) external view virtual returns(address);\n\n function getSubscribedInfo(uint _cdpId) public view virtual returns(bool, uint128, uint128, uint128, uint128, address, uint coll, uint debt);\n\n function getCdpHolder(uint _cdpId) public view virtual returns (bool subscribed, CdpHolder memory);\n\n}\n\ncontract MCDMonitorV2 is DSMath, AdminAuth, GasBurner, StaticV2 {\n\n\n\n uint public REPAY_GAS_TOKEN = 25;\n\n uint public BOOST_GAS_TOKEN = 25;\n\n\n\n uint public MAX_GAS_PRICE = 200000000000; // 200 gwei\n\n\n\n uint public REPAY_GAS_COST = 2500000;\n\n uint public BOOST_GAS_COST = 2500000;\n\n\n\n MCDMonitorProxyV2 public monitorProxyContract;\n\n ISubscriptionsV2 public subscriptionsContract;\n\n address public mcdSaverTakerAddress;\n\n\n\n address public constant BOT_REGISTRY_ADDRESS = 0x637726f8b08a7ABE3aE3aCaB01A80E2d8ddeF77B;\n\n\n\n Manager public manager = Manager(0x5ef30b9986345249bc32d8928B7ee64DE9435E39);\n\n Vat public vat = Vat(0x35D1b3F3D7966A1DFe207aa4514C12a259A0492B);\n\n Spotter public spotter = Spotter(0x65C79fcB50Ca1594B025960e539eD7A9a6D434A3);\n\n\n\n DefisaverLogger public constant logger = DefisaverLogger(0x5c55B921f590a89C1Ebe84dF170E655a82b62126);\n\n\n\n modifier onlyApproved() {\n\n require(BotRegistry(BOT_REGISTRY_ADDRESS).botList(msg.sender), \"Not auth bot\");\n\n _;\n\n }\n\n\n\n constructor(address _monitorProxy, address _subscriptions, address _mcdSaverTakerAddress) public {\n\n monitorProxyContract = MCDMonitorProxyV2(_monitorProxy);\n\n subscriptionsContract = ISubscriptionsV2(_subscriptions);\n\n mcdSaverTakerAddress = _mcdSaverTakerAddress;\n\n }\n\n\n\n /// @notice Bots call this method to repay for user when conditions are met\n\n /// @dev If the contract ownes gas token it will try and use it for gas price reduction\n\n function repayFor(\n\n SaverExchangeCore.ExchangeData memory _exchangeData,\n\n uint _cdpId,\n\n uint _nextPrice,\n\n address _joinAddr\n\n ) public payable onlyApproved burnGas(REPAY_GAS_TOKEN) {\n\n\n\n (bool isAllowed, uint ratioBefore) = canCall(Method.Repay, _cdpId, _nextPrice);\n\n require(isAllowed);\n\n\n\n uint gasCost = calcGasCost(REPAY_GAS_COST);\n\n\n\n address owner = subscriptionsContract.getOwner(_cdpId);\n\n\n\n monitorProxyContract.callExecute{value: msg.value}(\n\n owner,\n\n mcdSaverTakerAddress,\n\n abi.encodeWithSignature(\n\n \"repayWithLoan((address,address,uint256,uint256,uint256,address,address,bytes,uint256),uint256,uint256,address)\",\n\n _exchangeData, _cdpId, gasCost, _joinAddr));\n\n\n\n\n\n (bool isGoodRatio, uint ratioAfter) = ratioGoodAfter(Method.Repay, _cdpId, _nextPrice);\n\n require(isGoodRatio);\n\n\n\n returnEth();\n\n\n\n logger.Log(address(this), owner, \"AutomaticMCDRepay\", abi.encode(ratioBefore, ratioAfter));\n\n }\n\n\n\n /// @notice Bots call this method to boost for user when conditions are met\n\n /// @dev If the contract ownes gas token it will try and use it for gas price reduction\n\n function boostFor(\n\n SaverExchangeCore.ExchangeData memory _exchangeData,\n\n uint _cdpId,\n\n uint _nextPrice,\n\n address _joinAddr\n\n ) public payable onlyApproved burnGas(BOOST_GAS_TOKEN) {\n\n\n\n (bool isAllowed, uint ratioBefore) = canCall(Method.Boost, _cdpId, _nextPrice);\n\n require(isAllowed);\n\n\n\n uint gasCost = calcGasCost(BOOST_GAS_COST);\n\n\n\n address owner = subscriptionsContract.getOwner(_cdpId);\n\n\n\n monitorProxyContract.callExecute{value: msg.value}(\n\n owner,\n\n mcdSaverTakerAddress,\n\n abi.encodeWithSignature(\n\n \"boostWithLoan((address,address,uint256,uint256,uint256,address,address,bytes,uint256),uint256,uint256,address)\",\n\n _exchangeData, _cdpId, gasCost, _joinAddr));\n\n\n\n (bool isGoodRatio, uint ratioAfter) = ratioGoodAfter(Method.Boost, _cdpId, _nextPrice);\n\n require(isGoodRatio);\n\n\n\n returnEth();\n\n\n\n logger.Log(address(this), owner, \"AutomaticMCDBoost\", abi.encode(ratioBefore, ratioAfter));\n\n }\n\n\n\n/******************* INTERNAL METHODS ********************************/\n\n function returnEth() internal {\n\n // return if some eth left\n\n if (address(this).balance > 0) {\n\n msg.sender.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n/******************* STATIC METHODS ********************************/\n\n\n\n /// @notice Returns an address that owns the CDP\n\n /// @param _cdpId Id of the CDP\n\n function getOwner(uint _cdpId) public view returns(address) {\n\n return manager.owns(_cdpId);\n\n }\n\n\n\n /// @notice Gets CDP info (collateral, debt)\n\n /// @param _cdpId Id of the CDP\n\n /// @param _ilk Ilk of the CDP\n\n function getCdpInfo(uint _cdpId, bytes32 _ilk) public view returns (uint, uint) {\n\n address urn = manager.urns(_cdpId);\n\n\n\n (uint collateral, uint debt) = vat.urns(_ilk, urn);\n\n (,uint rate,,,) = vat.ilks(_ilk);\n\n\n\n return (collateral, rmul(debt, rate));\n\n }\n\n\n\n /// @notice Gets a price of the asset\n\n /// @param _ilk Ilk of the CDP\n\n function getPrice(bytes32 _ilk) public view returns (uint) {\n\n (, uint mat) = spotter.ilks(_ilk);\n\n (,,uint spot,,) = vat.ilks(_ilk);\n\n\n\n return rmul(rmul(spot, spotter.par()), mat);\n\n }\n\n\n\n /// @notice Gets CDP ratio\n\n /// @param _cdpId Id of the CDP\n\n /// @param _nextPrice Next price for user\n\n function getRatio(uint _cdpId, uint _nextPrice) public view returns (uint) {\n\n bytes32 ilk = manager.ilks(_cdpId);\n\n uint price = (_nextPrice == 0) ? getPrice(ilk) : _nextPrice;\n\n\n\n (uint collateral, uint debt) = getCdpInfo(_cdpId, ilk);\n\n\n\n if (debt == 0) return 0;\n\n\n\n return rdiv(wmul(collateral, price), debt) / (10 ** 18);\n\n }\n\n\n\n /// @notice Checks if Boost/Repay could be triggered for the CDP\n\n /// @dev Called by MCDMonitor to enforce the min/max check\n\n function canCall(Method _method, uint _cdpId, uint _nextPrice) public view returns(bool, uint) {\n\n bool subscribed;\n\n CdpHolder memory holder;\n\n (subscribed, holder) = subscriptionsContract.getCdpHolder(_cdpId);\n\n\n\n // check if cdp is subscribed\n\n if (!subscribed) return (false, 0);\n\n\n\n // check if using next price is allowed\n\n if (_nextPrice > 0 && !holder.nextPriceEnabled) return (false, 0);\n\n\n\n // check if boost and boost allowed\n\n if (_method == Method.Boost && !holder.boostEnabled) return (false, 0);\n\n\n\n // check if owner is still owner\n\n if (getOwner(_cdpId) != holder.owner) return (false, 0);\n\n\n\n uint currRatio = getRatio(_cdpId, _nextPrice);\n\n\n\n if (_method == Method.Repay) {\n\n return (currRatio < holder.minRatio, currRatio);\n\n } else if (_method == Method.Boost) {\n\n return (currRatio > holder.maxRatio, currRatio);\n\n }\n\n }\n\n\n\n /// @dev After the Boost/Repay check if the ratio doesn't trigger another call\n\n function ratioGoodAfter(Method _method, uint _cdpId, uint _nextPrice) public view returns(bool, uint) {\n\n CdpHolder memory holder;\n\n\n\n (, holder) = subscriptionsContract.getCdpHolder(_cdpId);\n\n\n\n uint currRatio = getRatio(_cdpId, _nextPrice);\n\n\n\n if (_method == Method.Repay) {\n\n return (currRatio < holder.maxRatio, currRatio);\n\n } else if (_method == Method.Boost) {\n\n return (currRatio > holder.minRatio, currRatio);\n\n }\n\n }\n\n\n\n /// @notice Calculates gas cost (in Eth) of tx\n\n /// @dev Gas price is limited to MAX_GAS_PRICE to prevent attack of draining user CDP\n\n /// @param _gasAmount Amount of gas used for the tx\n\n function calcGasCost(uint _gasAmount) public view returns (uint) {\n\n uint gasPrice = tx.gasprice <= MAX_GAS_PRICE ? tx.gasprice : MAX_GAS_PRICE;\n\n\n\n return mul(gasPrice, _gasAmount);\n\n }\n\n\n\n/******************* OWNER ONLY OPERATIONS ********************************/\n\n\n\n /// @notice Allows owner to change gas cost for boost operation, but only up to 3 millions\n\n /// @param _gasCost New gas cost for boost method\n\n function changeBoostGasCost(uint _gasCost) public onlyOwner {\n\n require(_gasCost < 3000000);\n\n\n\n BOOST_GAS_COST = _gasCost;\n\n }\n\n\n\n /// @notice Allows owner to change gas cost for repay operation, but only up to 3 millions\n\n /// @param _gasCost New gas cost for repay method\n\n function changeRepayGasCost(uint _gasCost) public onlyOwner {\n\n require(_gasCost < 3000000);\n\n\n\n REPAY_GAS_COST = _gasCost;\n\n }\n\n\n\n /// @notice Allows owner to change max gas price\n\n /// @param _maxGasPrice New max gas price\n\n function changeMaxGasPrice(uint _maxGasPrice) public onlyOwner {\n\n require(_maxGasPrice < 500000000000);\n\n\n\n MAX_GAS_PRICE = _maxGasPrice;\n\n }\n\n\n\n /// @notice Allows owner to change the amount of gas token burned per function call\n\n /// @param _gasAmount Amount of gas token\n\n /// @param _isRepay Flag to know for which function we are setting the gas token amount\n\n function changeGasTokenAmount(uint _gasAmount, bool _isRepay) public onlyOwner {\n\n if (_isRepay) {\n\n REPAY_GAS_TOKEN = _gasAmount;\n\n } else {\n\n BOOST_GAS_TOKEN = _gasAmount;\n\n }\n\n }\n\n}\n\ncontract MCDCloseFlashLoan is SaverExchangeCore, MCDSaverProxyHelper, FlashLoanReceiverBase, AdminAuth {\n\n ILendingPoolAddressesProvider public LENDING_POOL_ADDRESS_PROVIDER = ILendingPoolAddressesProvider(0x24a42fD28C976A61Df5D00D0599C34c4f90748c8);\n\n\n\n uint public constant SERVICE_FEE = 400; // 0.25% Fee\n\n\n\n bytes32 internal constant ETH_ILK = 0x4554482d41000000000000000000000000000000000000000000000000000000;\n\n\n\n address public constant DAI_ADDRESS = 0x6B175474E89094C44Da98b954EedeAC495271d0F;\n\n address public constant DAI_JOIN_ADDRESS = 0x9759A6Ac90977b93B58547b4A71c78317f391A28;\n\n address public constant ETH_JOIN_ADDRESS = 0x2F0b23f53734252Bda2277357e97e1517d6B042A;\n\n address public constant SPOTTER_ADDRESS = 0x65C79fcB50Ca1594B025960e539eD7A9a6D434A3;\n\n address public constant VAT_ADDRESS = 0x35D1b3F3D7966A1DFe207aa4514C12a259A0492B;\n\n\n\n Manager public constant manager = Manager(0x5ef30b9986345249bc32d8928B7ee64DE9435E39);\n\n DaiJoin public constant daiJoin = DaiJoin(DAI_JOIN_ADDRESS);\n\n Spotter public constant spotter = Spotter(SPOTTER_ADDRESS);\n\n Vat public constant vat = Vat(VAT_ADDRESS);\n\n\n\n struct CloseData {\n\n uint cdpId;\n\n uint collAmount;\n\n uint daiAmount;\n\n uint minAccepted;\n\n address joinAddr;\n\n address proxy;\n\n uint flFee;\n\n bool toDai;\n\n address reserve;\n\n uint amount;\n\n }\n\n\n\n constructor() FlashLoanReceiverBase(LENDING_POOL_ADDRESS_PROVIDER) public {}\n\n\n\n function executeOperation(\n\n address _reserve,\n\n uint256 _amount,\n\n uint256 _fee,\n\n bytes calldata _params)\n\n external override {\n\n\n\n (\n\n uint[8] memory numData,\n\n address[5] memory addrData,\n\n bytes memory callData,\n\n address proxy,\n\n bool toDai\n\n )\n\n = abi.decode(_params, (uint256[8],address[5],bytes,address,bool));\n\n\n\n ExchangeData memory exchangeData = ExchangeData({\n\n srcAddr: addrData[0],\n\n destAddr: addrData[1],\n\n srcAmount: numData[4],\n\n destAmount: numData[5],\n\n minPrice: numData[6],\n\n wrapper: addrData[3],\n\n exchangeAddr: addrData[2],\n\n callData: callData,\n\n price0x: numData[7]\n\n });\n\n\n\n CloseData memory closeData = CloseData({\n\n cdpId: numData[0],\n\n collAmount: numData[1],\n\n daiAmount: numData[2],\n\n minAccepted: numData[3],\n\n joinAddr: addrData[4],\n\n proxy: proxy,\n\n flFee: _fee,\n\n toDai: toDai,\n\n reserve: _reserve,\n\n amount: _amount\n\n });\n\n\n\n address user = DSProxy(payable(closeData.proxy)).owner();\n\n\n\n closeCDP(closeData, exchangeData, user);\n\n }\n\n\n\n function closeCDP(\n\n CloseData memory _closeData,\n\n ExchangeData memory _exchangeData,\n\n address _user\n\n ) internal {\n\n\n\n paybackDebt(_closeData.cdpId, manager.ilks(_closeData.cdpId), _closeData.daiAmount); // payback whole debt\n\n drawMaxCollateral(_closeData.cdpId, _closeData.joinAddr, _closeData.collAmount); // draw whole collateral\n\n\n\n uint daiSwaped = 0;\n\n uint dfsFee = 0;\n\n\n\n if (_closeData.toDai) {\n\n _exchangeData.srcAmount = _closeData.collAmount;\n\n (, daiSwaped) = _sell(_exchangeData);\n\n\n\n dfsFee = getFee(daiSwaped, _user);\n\n } else {\n\n dfsFee = getFee(_closeData.daiAmount, _user);\n\n\n\n _exchangeData.destAmount = (_closeData.daiAmount + _closeData.flFee + dfsFee);\n\n (, daiSwaped) = _buy(_exchangeData);\n\n }\n\n\n\n takeFee(dfsFee);\n\n\n\n address tokenAddr = getVaultCollAddr(_closeData.joinAddr);\n\n\n\n if (_closeData.toDai) {\n\n tokenAddr = DAI_ADDRESS;\n\n }\n\n\n\n require(getBalance(tokenAddr) >= _closeData.minAccepted, \"Below min. number of eth specified\");\n\n\n\n transferFundsBackToPoolInternal(_closeData.reserve, _closeData.amount.add(_closeData.flFee));\n\n\n\n sendLeftover(tokenAddr, DAI_ADDRESS, payable(_user));\n\n\n\n }\n\n\n\n function drawMaxCollateral(uint _cdpId, address _joinAddr, uint _amount) internal returns (uint) {\n\n manager.frob(_cdpId, -toPositiveInt(_amount), 0);\n\n manager.flux(_cdpId, address(this), _amount);\n\n\n\n uint joinAmount = _amount;\n\n\n\n if (Join(_joinAddr).dec() != 18) {\n\n joinAmount = _amount / (10 ** (18 - Join(_joinAddr).dec()));\n\n }\n\n\n\n Join(_joinAddr).exit(address(this), joinAmount);\n\n\n\n if (_joinAddr == ETH_JOIN_ADDRESS) {\n\n Join(_joinAddr).gem().withdraw(joinAmount); // Weth -> Eth\n\n }\n\n\n\n return joinAmount;\n\n }\n\n\n\n function paybackDebt(uint _cdpId, bytes32 _ilk, uint _daiAmount) internal {\n\n address urn = manager.urns(_cdpId);\n\n\n\n daiJoin.dai().approve(DAI_JOIN_ADDRESS, _daiAmount);\n\n daiJoin.join(urn, _daiAmount);\n\n\n\n manager.frob(_cdpId, 0, normalizePaybackAmount(VAT_ADDRESS, urn, _ilk));\n\n }\n\n\n\n function takeFee(uint _feeAmount) internal returns (uint) {\n\n ERC20(DAI_ADDRESS).transfer(WALLET_ID, _feeAmount);\n\n }\n\n\n\n function getFee(uint _amount, address _owner) internal view returns (uint feeAmount) {\n\n uint fee = SERVICE_FEE;\n\n\n\n if (Discount(DISCOUNT_ADDRESS).isCustomFeeSet(_owner)) {\n\n fee = Discount(DISCOUNT_ADDRESS).getCustomServiceFee(_owner);\n\n }\n\n\n\n feeAmount = (fee == 0) ? 0 : (_amount / fee);\n\n\n\n // fee can't go over 20% of the whole amount\n\n if (feeAmount > (_amount / 5)) {\n\n feeAmount = _amount / 5;\n\n }\n\n }\n\n\n\n function getVaultCollAddr(address _joinAddr) internal view returns (address) {\n\n address tokenAddr = address(Join(_joinAddr).gem());\n\n\n\n if (tokenAddr == WETH_ADDRESS) {\n\n return KYBER_ETH_ADDRESS;\n\n }\n\n\n\n return tokenAddr;\n\n }\n\n\n\n function getPrice(bytes32 _ilk) public view returns (uint256) {\n\n (, uint256 mat) = spotter.ilks(_ilk);\n\n (, , uint256 spot, , ) = vat.ilks(_ilk);\n\n\n\n return rmul(rmul(spot, spotter.par()), mat);\n\n }\n\n\n\n receive() external override(FlashLoanReceiverBase, SaverExchangeCore) payable {}\n\n\n\n}\n\ncontract MCDCloseTaker is MCDSaverProxyHelper {\n\n\n\n address public constant SUBSCRIPTION_ADDRESS_NEW = 0xC45d4f6B6bf41b6EdAA58B01c4298B8d9078269a;\n\n\n\n address public constant DEFISAVER_LOGGER = 0x5c55B921f590a89C1Ebe84dF170E655a82b62126;\n\n\n\n ILendingPool public constant lendingPool = ILendingPool(0x398eC7346DcD622eDc5ae82352F02bE94C62d119);\n\n\n\n // solhint-disable-next-line const-name-snakecase\n\n Manager public constant manager = Manager(0x5ef30b9986345249bc32d8928B7ee64DE9435E39);\n\n\n\n address public constant SPOTTER_ADDRESS = 0x65C79fcB50Ca1594B025960e539eD7A9a6D434A3;\n\n address public constant VAT_ADDRESS = 0x35D1b3F3D7966A1DFe207aa4514C12a259A0492B;\n\n address public constant DAI_ADDRESS = 0x6B175474E89094C44Da98b954EedeAC495271d0F;\n\n\n\n // solhint-disable-next-line const-name-snakecase\n\n DefisaverLogger public constant logger = DefisaverLogger(DEFISAVER_LOGGER);\n\n\n\n struct CloseData {\n\n uint cdpId;\n\n address joinAddr;\n\n uint collAmount;\n\n uint daiAmount;\n\n uint minAccepted;\n\n bool wholeDebt;\n\n bool toDai;\n\n }\n\n\n\n Vat public constant vat = Vat(VAT_ADDRESS);\n\n Spotter public constant spotter = Spotter(SPOTTER_ADDRESS);\n\n\n\n function closeWithLoan(\n\n SaverExchangeCore.ExchangeData memory _exchangeData,\n\n CloseData memory _closeData,\n\n address payable mcdCloseFlashLoan\n\n ) public payable {\n\n mcdCloseFlashLoan.transfer(msg.value); // 0x fee\n\n\n\n if (_closeData.wholeDebt) {\n\n _closeData.daiAmount = getAllDebt(\n\n VAT_ADDRESS,\n\n manager.urns(_closeData.cdpId),\n\n manager.urns(_closeData.cdpId),\n\n manager.ilks(_closeData.cdpId)\n\n );\n\n\n\n (_closeData.collAmount, )\n\n = getCdpInfo(manager, _closeData.cdpId, manager.ilks(_closeData.cdpId));\n\n }\n\n\n\n manager.cdpAllow(_closeData.cdpId, mcdCloseFlashLoan, 1);\n\n\n\n (uint[8] memory numData, address[5] memory addrData, bytes memory callData)\n\n = _packData(_closeData, _exchangeData);\n\n bytes memory paramsData = abi.encode(numData, addrData, callData, address(this), _closeData.toDai);\n\n\n\n lendingPool.flashLoan(mcdCloseFlashLoan, DAI_ADDRESS, _closeData.daiAmount, paramsData);\n\n\n\n manager.cdpAllow(_closeData.cdpId, mcdCloseFlashLoan, 0);\n\n\n\n // If sub. to automatic protection unsubscribe\n\n unsubscribe(SUBSCRIPTION_ADDRESS_NEW, _closeData.cdpId);\n\n\n\n logger.Log(address(this), msg.sender, \"MCDClose\", abi.encode(_closeData.cdpId, _closeData.collAmount, _closeData.daiAmount, _closeData.toDai));\n\n }\n\n\n\n /// @notice Gets the maximum amount of debt available to generate\n\n /// @param _cdpId Id of the CDP\n\n /// @param _ilk Ilk of the CDP\n\n function getMaxDebt(uint256 _cdpId, bytes32 _ilk) public view returns (uint256) {\n\n uint256 price = getPrice(_ilk);\n\n\n\n (, uint256 mat) = spotter.ilks(_ilk);\n\n (uint256 collateral, uint256 debt) = getCdpInfo(manager, _cdpId, _ilk);\n\n\n\n return sub(wdiv(wmul(collateral, price), mat), debt);\n\n }\n\n\n\n /// @notice Gets a price of the asset\n\n /// @param _ilk Ilk of the CDP\n\n function getPrice(bytes32 _ilk) public view returns (uint256) {\n\n (, uint256 mat) = spotter.ilks(_ilk);\n\n (, , uint256 spot, , ) = vat.ilks(_ilk);\n\n\n\n return rmul(rmul(spot, spotter.par()), mat);\n\n }\n\n\n\n function unsubscribe(address _subContract, uint _cdpId) internal {\n\n (, bool isSubscribed) = IMCDSubscriptions(_subContract).subscribersPos(_cdpId);\n\n\n\n if (isSubscribed) {\n\n IMCDSubscriptions(_subContract).unsubscribe(_cdpId);\n\n }\n\n }\n\n\n\n function _packData(\n\n CloseData memory _closeData,\n\n SaverExchangeCore.ExchangeData memory exchangeData\n\n ) internal pure returns (uint[8] memory numData, address[5] memory addrData, bytes memory callData) {\n\n\n\n numData = [\n\n _closeData.cdpId,\n\n _closeData.collAmount,\n\n _closeData.daiAmount,\n\n _closeData.minAccepted,\n\n exchangeData.srcAmount,\n\n exchangeData.destAmount,\n\n exchangeData.minPrice,\n\n exchangeData.price0x\n\n ];\n\n\n\n addrData = [\n\n exchangeData.srcAddr,\n\n exchangeData.destAddr,\n\n exchangeData.exchangeAddr,\n\n exchangeData.wrapper,\n\n _closeData.joinAddr\n\n ];\n\n\n\n callData = exchangeData.callData;\n\n }\n\n\n\n}\n\ncontract MCDCreateFlashLoan is SaverExchangeCore, AdminAuth, FlashLoanReceiverBase {\n\n address public constant CREATE_PROXY_ACTIONS = 0x6d0984E80a86f26c0dd564ca0CF74a8E9Da03305;\n\n\n\n uint public constant SERVICE_FEE = 400; // 0.25% Fee\n\n address public constant DAI_ADDRESS = 0x6B175474E89094C44Da98b954EedeAC495271d0F;\n\n\n\n ILendingPoolAddressesProvider public LENDING_POOL_ADDRESS_PROVIDER = ILendingPoolAddressesProvider(0x24a42fD28C976A61Df5D00D0599C34c4f90748c8);\n\n\n\n address public constant ETH_JOIN_ADDRESS = 0x2F0b23f53734252Bda2277357e97e1517d6B042A;\n\n address public constant DAI_JOIN_ADDRESS = 0x9759A6Ac90977b93B58547b4A71c78317f391A28;\n\n address public constant JUG_ADDRESS = 0x19c0976f590D67707E62397C87829d896Dc0f1F1;\n\n address public constant MANAGER_ADDRESS = 0x5ef30b9986345249bc32d8928B7ee64DE9435E39;\n\n\n\n constructor() FlashLoanReceiverBase(LENDING_POOL_ADDRESS_PROVIDER) public {}\n\n\n\n function executeOperation(\n\n address _reserve,\n\n uint256 _amount,\n\n uint256 _fee,\n\n bytes calldata _params)\n\n external override {\n\n\n\n //check the contract has the specified balance\n\n require(_amount <= getBalanceInternal(address(this), _reserve),\n\n \"Invalid balance for the contract\");\n\n\n\n (\n\n uint[6] memory numData,\n\n address[5] memory addrData,\n\n bytes memory callData,\n\n address proxy\n\n )\n\n = abi.decode(_params, (uint256[6],address[5],bytes,address));\n\n\n\n ExchangeData memory exchangeData = ExchangeData({\n\n srcAddr: addrData[0],\n\n destAddr: addrData[1],\n\n srcAmount: numData[2],\n\n destAmount: numData[3],\n\n minPrice: numData[4],\n\n wrapper: addrData[3],\n\n exchangeAddr: addrData[2],\n\n callData: callData,\n\n price0x: numData[5]\n\n });\n\n\n\n openAndLeverage(numData[0], numData[1] + _fee, addrData[4], proxy, exchangeData);\n\n\n\n transferFundsBackToPoolInternal(_reserve, _amount.add(_fee));\n\n\n\n // if there is some eth left (0x fee), return it to user\n\n if (address(this).balance > 0) {\n\n tx.origin.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n function openAndLeverage(\n\n uint _collAmount,\n\n uint _daiAmountAndFee,\n\n address _joinAddr,\n\n address _proxy,\n\n ExchangeData memory _exchangeData\n\n ) public {\n\n\n\n uint dfsFee = getFee(_exchangeData.srcAmount, DSProxy(payable(_proxy)).owner());\n\n\n\n _exchangeData.srcAmount = (_exchangeData.srcAmount - dfsFee);\n\n (, uint256 collSwaped) = _sell(_exchangeData);\n\n\n\n bytes32 ilk = Join(_joinAddr).ilk();\n\n\n\n if (_joinAddr == ETH_JOIN_ADDRESS) {\n\n MCDCreateProxyActions(CREATE_PROXY_ACTIONS).openLockETHAndDraw{value: address(this).balance}(\n\n MANAGER_ADDRESS,\n\n JUG_ADDRESS,\n\n ETH_JOIN_ADDRESS,\n\n DAI_JOIN_ADDRESS,\n\n ilk,\n\n _daiAmountAndFee,\n\n _proxy\n\n );\n\n } else {\n\n ERC20(address(Join(_joinAddr).gem())).safeApprove(CREATE_PROXY_ACTIONS, 0);\n\n ERC20(address(Join(_joinAddr).gem())).safeApprove(CREATE_PROXY_ACTIONS, uint256(-1));\n\n\n\n MCDCreateProxyActions(CREATE_PROXY_ACTIONS).openLockGemAndDraw(\n\n MANAGER_ADDRESS,\n\n JUG_ADDRESS,\n\n _joinAddr,\n\n DAI_JOIN_ADDRESS,\n\n ilk,\n\n (_collAmount + collSwaped),\n\n _daiAmountAndFee,\n\n true,\n\n _proxy\n\n );\n\n }\n\n }\n\n\n\n function getFee(uint _amount, address _owner) internal returns (uint feeAmount) {\n\n uint fee = SERVICE_FEE;\n\n\n\n if (Discount(DISCOUNT_ADDRESS).isCustomFeeSet(_owner)) {\n\n fee = Discount(DISCOUNT_ADDRESS).getCustomServiceFee(_owner);\n\n }\n\n\n\n feeAmount = (fee == 0) ? 0 : (_amount / fee);\n\n\n\n // fee can't go over 20% of the whole amount\n\n if (feeAmount > (_amount / 5)) {\n\n feeAmount = _amount / 5;\n\n }\n\n\n\n ERC20(DAI_ADDRESS).transfer(WALLET_ID, feeAmount);\n\n }\n\n\n\n receive() external override(FlashLoanReceiverBase, SaverExchangeCore) payable {}\n\n}\n\ncontract MCDSaverProxy is SaverExchangeCore, MCDSaverProxyHelper {\n\n\n\n uint public constant MANUAL_SERVICE_FEE = 400; // 0.25% Fee\n\n uint public constant AUTOMATIC_SERVICE_FEE = 333; // 0.3% Fee\n\n\n\n bytes32 public constant ETH_ILK = 0x4554482d41000000000000000000000000000000000000000000000000000000;\n\n\n\n address public constant MANAGER_ADDRESS = 0x5ef30b9986345249bc32d8928B7ee64DE9435E39;\n\n address public constant VAT_ADDRESS = 0x35D1b3F3D7966A1DFe207aa4514C12a259A0492B;\n\n address public constant SPOTTER_ADDRESS = 0x65C79fcB50Ca1594B025960e539eD7A9a6D434A3;\n\n address public constant DAI_JOIN_ADDRESS = 0x9759A6Ac90977b93B58547b4A71c78317f391A28;\n\n address public constant JUG_ADDRESS = 0x19c0976f590D67707E62397C87829d896Dc0f1F1;\n\n address public constant ETH_JOIN_ADDRESS = 0x2F0b23f53734252Bda2277357e97e1517d6B042A;\n\n address public constant DAI_ADDRESS = 0x6B175474E89094C44Da98b954EedeAC495271d0F;\n\n\n\n address public constant BOT_REGISTRY_ADDRESS = 0x637726f8b08a7ABE3aE3aCaB01A80E2d8ddeF77B;\n\n\n\n Manager public constant manager = Manager(MANAGER_ADDRESS);\n\n Vat public constant vat = Vat(VAT_ADDRESS);\n\n DaiJoin public constant daiJoin = DaiJoin(DAI_JOIN_ADDRESS);\n\n Spotter public constant spotter = Spotter(SPOTTER_ADDRESS);\n\n\n\n DefisaverLogger public constant logger = DefisaverLogger(0x5c55B921f590a89C1Ebe84dF170E655a82b62126);\n\n\n\n /// @notice Repay - draws collateral, converts to Dai and repays the debt\n\n /// @dev Must be called by the DSProxy contract that owns the CDP\n\n function repay(\n\n SaverExchangeCore.ExchangeData memory _exchangeData,\n\n uint _cdpId,\n\n uint _gasCost,\n\n address _joinAddr\n\n ) public payable {\n\n\n\n address owner = getOwner(manager, _cdpId);\n\n bytes32 ilk = manager.ilks(_cdpId);\n\n\n\n drawCollateral(_cdpId, _joinAddr, _exchangeData.srcAmount);\n\n\n\n (, uint daiAmount) = _sell(_exchangeData);\n\n\n\n uint daiAfterFee = sub(daiAmount, getFee(daiAmount, _gasCost, owner));\n\n\n\n paybackDebt(_cdpId, ilk, daiAfterFee, owner);\n\n\n\n // if there is some eth left (0x fee), return it to user\n\n if (address(this).balance > 0) {\n\n tx.origin.transfer(address(this).balance);\n\n }\n\n\n\n logger.Log(address(this), msg.sender, \"MCDRepay\", abi.encode(_cdpId, owner, _exchangeData.srcAmount, daiAmount));\n\n\n\n }\n\n\n\n /// @notice Boost - draws Dai, converts to collateral and adds to CDP\n\n /// @dev Must be called by the DSProxy contract that owns the CDP\n\n function boost(\n\n SaverExchangeCore.ExchangeData memory _exchangeData,\n\n uint _cdpId,\n\n uint _gasCost,\n\n address _joinAddr\n\n ) public payable {\n\n address owner = getOwner(manager, _cdpId);\n\n bytes32 ilk = manager.ilks(_cdpId);\n\n\n\n uint daiDrawn = drawDai(_cdpId, ilk, _exchangeData.srcAmount);\n\n uint daiAfterFee = sub(daiDrawn, getFee(daiDrawn, _gasCost, owner));\n\n\n\n _exchangeData.srcAmount = daiAfterFee;\n\n (, uint swapedColl) = _sell(_exchangeData);\n\n\n\n addCollateral(_cdpId, _joinAddr, swapedColl);\n\n\n\n // if there is some eth left (0x fee), return it to user\n\n if (address(this).balance > 0) {\n\n tx.origin.transfer(address(this).balance);\n\n }\n\n\n\n logger.Log(address(this), msg.sender, \"MCDBoost\", abi.encode(_cdpId, owner, _exchangeData.srcAmount, swapedColl));\n\n }\n\n\n\n /// @notice Draws Dai from the CDP\n\n /// @dev If _daiAmount is bigger than max available we'll draw max\n\n /// @param _cdpId Id of the CDP\n\n /// @param _ilk Ilk of the CDP\n\n /// @param _daiAmount Amount of Dai to draw\n\n function drawDai(uint _cdpId, bytes32 _ilk, uint _daiAmount) internal returns (uint) {\n\n uint rate = Jug(JUG_ADDRESS).drip(_ilk);\n\n uint daiVatBalance = vat.dai(manager.urns(_cdpId));\n\n\n\n uint maxAmount = getMaxDebt(_cdpId, _ilk);\n\n\n\n if (_daiAmount >= maxAmount) {\n\n _daiAmount = sub(maxAmount, 1);\n\n }\n\n\n\n manager.frob(_cdpId, int(0), normalizeDrawAmount(_daiAmount, rate, daiVatBalance));\n\n manager.move(_cdpId, address(this), toRad(_daiAmount));\n\n\n\n if (vat.can(address(this), address(DAI_JOIN_ADDRESS)) == 0) {\n\n vat.hope(DAI_JOIN_ADDRESS);\n\n }\n\n\n\n DaiJoin(DAI_JOIN_ADDRESS).exit(address(this), _daiAmount);\n\n\n\n return _daiAmount;\n\n }\n\n\n\n /// @notice Adds collateral to the CDP\n\n /// @param _cdpId Id of the CDP\n\n /// @param _joinAddr Address of the join contract for the CDP collateral\n\n /// @param _amount Amount of collateral to add\n\n function addCollateral(uint _cdpId, address _joinAddr, uint _amount) internal {\n\n int convertAmount = 0;\n\n\n\n if (_joinAddr == ETH_JOIN_ADDRESS) {\n\n Join(_joinAddr).gem().deposit{value: _amount}();\n\n convertAmount = toPositiveInt(_amount);\n\n } else {\n\n convertAmount = toPositiveInt(convertTo18(_joinAddr, _amount));\n\n }\n\n\n\n ERC20(address(Join(_joinAddr).gem())).safeApprove(_joinAddr, 0);\n\n ERC20(address(Join(_joinAddr).gem())).safeApprove(_joinAddr, _amount);\n\n\n\n Join(_joinAddr).join(address(this), _amount);\n\n\n\n vat.frob(\n\n manager.ilks(_cdpId),\n\n manager.urns(_cdpId),\n\n address(this),\n\n address(this),\n\n convertAmount,\n\n 0\n\n );\n\n\n\n }\n\n\n\n /// @notice Draws collateral and returns it to DSProxy\n\n /// @dev If _amount is bigger than max available we'll draw max\n\n /// @param _cdpId Id of the CDP\n\n /// @param _joinAddr Address of the join contract for the CDP collateral\n\n /// @param _amount Amount of collateral to draw\n\n function drawCollateral(uint _cdpId, address _joinAddr, uint _amount) internal returns (uint) {\n\n uint frobAmount = _amount;\n\n\n\n if (Join(_joinAddr).dec() != 18) {\n\n frobAmount = _amount * (10 ** (18 - Join(_joinAddr).dec()));\n\n }\n\n\n\n manager.frob(_cdpId, -toPositiveInt(frobAmount), 0);\n\n manager.flux(_cdpId, address(this), frobAmount);\n\n\n\n Join(_joinAddr).exit(address(this), _amount);\n\n\n\n if (_joinAddr == ETH_JOIN_ADDRESS) {\n\n Join(_joinAddr).gem().withdraw(_amount); // Weth -> Eth\n\n }\n\n\n\n return _amount;\n\n }\n\n\n\n /// @notice Paybacks Dai debt\n\n /// @dev If the _daiAmount is bigger than the whole debt, returns extra Dai\n\n /// @param _cdpId Id of the CDP\n\n /// @param _ilk Ilk of the CDP\n\n /// @param _daiAmount Amount of Dai to payback\n\n /// @param _owner Address that owns the DSProxy that owns the CDP\n\n function paybackDebt(uint _cdpId, bytes32 _ilk, uint _daiAmount, address _owner) internal {\n\n address urn = manager.urns(_cdpId);\n\n\n\n uint wholeDebt = getAllDebt(VAT_ADDRESS, urn, urn, _ilk);\n\n\n\n if (_daiAmount > wholeDebt) {\n\n ERC20(DAI_ADDRESS).transfer(_owner, sub(_daiAmount, wholeDebt));\n\n _daiAmount = wholeDebt;\n\n }\n\n\n\n if (ERC20(DAI_ADDRESS).allowance(address(this), DAI_JOIN_ADDRESS) == 0) {\n\n ERC20(DAI_ADDRESS).approve(DAI_JOIN_ADDRESS, uint(-1));\n\n }\n\n\n\n daiJoin.join(urn, _daiAmount);\n\n\n\n manager.frob(_cdpId, 0, normalizePaybackAmount(VAT_ADDRESS, urn, _ilk));\n\n }\n\n\n\n /// @notice Calculates the fee amount\n\n /// @param _amount Dai amount that is converted\n\n /// @param _gasCost Used for Monitor, estimated gas cost of tx\n\n /// @param _owner The address that controlls the DSProxy that owns the CDP\n\n function getFee(uint _amount, uint _gasCost, address _owner) internal returns (uint feeAmount) {\n\n uint fee = MANUAL_SERVICE_FEE;\n\n\n\n if (BotRegistry(BOT_REGISTRY_ADDRESS).botList(tx.origin)) {\n\n fee = AUTOMATIC_SERVICE_FEE;\n\n }\n\n\n\n if (Discount(DISCOUNT_ADDRESS).isCustomFeeSet(_owner)) {\n\n fee = Discount(DISCOUNT_ADDRESS).getCustomServiceFee(_owner);\n\n }\n\n\n\n feeAmount = (fee == 0) ? 0 : (_amount / fee);\n\n\n\n if (_gasCost != 0) {\n\n uint ethDaiPrice = getPrice(ETH_ILK);\n\n _gasCost = rmul(_gasCost, ethDaiPrice);\n\n\n\n feeAmount = add(feeAmount, _gasCost);\n\n }\n\n\n\n // fee can't go over 20% of the whole amount\n\n if (feeAmount > (_amount / 5)) {\n\n feeAmount = _amount / 5;\n\n }\n\n\n\n ERC20(DAI_ADDRESS).transfer(WALLET_ID, feeAmount);\n\n }\n\n\n\n /// @notice Gets the maximum amount of collateral available to draw\n\n /// @param _cdpId Id of the CDP\n\n /// @param _ilk Ilk of the CDP\n\n /// @param _joinAddr Joind address of collateral\n\n /// @dev Substracts 10 wei to aviod rounding error later on\n\n function getMaxCollateral(uint _cdpId, bytes32 _ilk, address _joinAddr) public view returns (uint) {\n\n uint price = getPrice(_ilk);\n\n\n\n (uint collateral, uint debt) = getCdpInfo(manager, _cdpId, _ilk);\n\n\n\n (, uint mat) = Spotter(SPOTTER_ADDRESS).ilks(_ilk);\n\n\n\n uint maxCollateral = sub(sub(collateral, (div(mul(mat, debt), price))), 10);\n\n\n\n uint normalizeMaxCollateral = maxCollateral;\n\n\n\n if (Join(_joinAddr).dec() != 18) {\n\n normalizeMaxCollateral = maxCollateral / (10 ** (18 - Join(_joinAddr).dec()));\n\n }\n\n\n\n return normalizeMaxCollateral;\n\n }\n\n\n\n /// @notice Gets the maximum amount of debt available to generate\n\n /// @param _cdpId Id of the CDP\n\n /// @param _ilk Ilk of the CDP\n\n /// @dev Substracts 10 wei to aviod rounding error later on\n\n function getMaxDebt(uint _cdpId, bytes32 _ilk) public virtual view returns (uint) {\n\n uint price = getPrice(_ilk);\n\n\n\n (, uint mat) = spotter.ilks(_ilk);\n\n (uint collateral, uint debt) = getCdpInfo(manager, _cdpId, _ilk);\n\n\n\n return sub(sub(div(mul(collateral, price), mat), debt), 10);\n\n }\n\n\n\n /// @notice Gets a price of the asset\n\n /// @param _ilk Ilk of the CDP\n\n function getPrice(bytes32 _ilk) public view returns (uint) {\n\n (, uint mat) = spotter.ilks(_ilk);\n\n (,,uint spot,,) = vat.ilks(_ilk);\n\n\n\n return rmul(rmul(spot, spotter.par()), mat);\n\n }\n\n\n\n /// @notice Gets CDP ratio\n\n /// @param _cdpId Id of the CDP\n\n /// @param _ilk Ilk of the CDP\n\n function getRatio(uint _cdpId, bytes32 _ilk) public view returns (uint) {\n\n uint price = getPrice( _ilk);\n\n\n\n (uint collateral, uint debt) = getCdpInfo(manager, _cdpId, _ilk);\n\n\n\n if (debt == 0) return 0;\n\n\n\n return rdiv(wmul(collateral, price), debt);\n\n }\n\n\n\n /// @notice Gets CDP info (collateral, debt, price, ilk)\n\n /// @param _cdpId Id of the CDP\n\n function getCdpDetailedInfo(uint _cdpId) public view returns (uint collateral, uint debt, uint price, bytes32 ilk) {\n\n address urn = manager.urns(_cdpId);\n\n ilk = manager.ilks(_cdpId);\n\n\n\n (collateral, debt) = vat.urns(ilk, urn);\n\n (,uint rate,,,) = vat.ilks(ilk);\n\n\n\n debt = rmul(debt, rate);\n\n price = getPrice(ilk);\n\n }\n\n\n\n}\n\ncontract MCDSaverTaker is MCDSaverProxy, GasBurner {\n\n\n\n address payable public constant MCD_SAVER_FLASH_LOAN = 0x28e444b53a9e7E3F6fFe50E93b18dCce7838551F;\n\n address public constant AAVE_POOL_CORE = 0x3dfd23A6c5E8BbcFc9581d2E864a68feb6a076d3;\n\n\n\n ILendingPool public constant lendingPool = ILendingPool(0x398eC7346DcD622eDc5ae82352F02bE94C62d119);\n\n\n\n function boostWithLoan(\n\n SaverExchangeCore.ExchangeData memory _exchangeData,\n\n uint _cdpId,\n\n uint _gasCost,\n\n address _joinAddr\n\n ) public payable burnGas(25) {\n\n uint256 maxDebt = getMaxDebt(_cdpId, manager.ilks(_cdpId));\n\n\n\n if (maxDebt >= _exchangeData.srcAmount) {\n\n boost(_exchangeData, _cdpId, _gasCost, _joinAddr);\n\n return;\n\n }\n\n\n\n MCD_SAVER_FLASH_LOAN.transfer(msg.value); // 0x fee\n\n\n\n uint256 loanAmount = sub(_exchangeData.srcAmount, maxDebt);\n\n uint maxLiq = getAvailableLiquidity(DAI_ADDRESS);\n\n\n\n loanAmount = loanAmount > maxLiq ? maxLiq : loanAmount;\n\n\n\n manager.cdpAllow(_cdpId, MCD_SAVER_FLASH_LOAN, 1);\n\n\n\n bytes memory paramsData = abi.encode(packExchangeData(_exchangeData), _cdpId, _gasCost, _joinAddr, false);\n\n\n\n lendingPool.flashLoan(MCD_SAVER_FLASH_LOAN, DAI_ADDRESS, loanAmount, paramsData);\n\n\n\n manager.cdpAllow(_cdpId, MCD_SAVER_FLASH_LOAN, 0);\n\n }\n\n\n\n function repayWithLoan(\n\n SaverExchangeCore.ExchangeData memory _exchangeData,\n\n uint _cdpId,\n\n uint _gasCost,\n\n address _joinAddr\n\n ) public payable burnGas(25) {\n\n uint256 maxColl = getMaxCollateral(_cdpId, manager.ilks(_cdpId), _joinAddr);\n\n\n\n if (maxColl >= _exchangeData.srcAmount) {\n\n repay(_exchangeData, _cdpId, _gasCost, _joinAddr);\n\n return;\n\n }\n\n\n\n MCD_SAVER_FLASH_LOAN.transfer(msg.value); // 0x fee\n\n\n\n uint256 loanAmount = sub(_exchangeData.srcAmount, maxColl);\n\n uint maxLiq = getAvailableLiquidity(_joinAddr);\n\n\n\n loanAmount = loanAmount > maxLiq ? maxLiq : loanAmount;\n\n\n\n manager.cdpAllow(_cdpId, MCD_SAVER_FLASH_LOAN, 1);\n\n\n\n bytes memory paramsData = abi.encode(packExchangeData(_exchangeData), _cdpId, _gasCost, _joinAddr, true);\n\n\n\n lendingPool.flashLoan(MCD_SAVER_FLASH_LOAN, getAaveCollAddr(_joinAddr), loanAmount, paramsData);\n\n\n\n manager.cdpAllow(_cdpId, MCD_SAVER_FLASH_LOAN, 0);\n\n }\n\n\n\n\n\n /// @notice Gets the maximum amount of debt available to generate\n\n /// @param _cdpId Id of the CDP\n\n /// @param _ilk Ilk of the CDP\n\n function getMaxDebt(uint256 _cdpId, bytes32 _ilk) public override view returns (uint256) {\n\n uint256 price = getPrice(_ilk);\n\n\n\n (, uint256 mat) = spotter.ilks(_ilk);\n\n (uint256 collateral, uint256 debt) = getCdpInfo(manager, _cdpId, _ilk);\n\n\n\n return sub(wdiv(wmul(collateral, price), mat), debt);\n\n }\n\n\n\n function getAaveCollAddr(address _joinAddr) internal view returns (address) {\n\n if (_joinAddr == 0x2F0b23f53734252Bda2277357e97e1517d6B042A\n\n || _joinAddr == 0x775787933e92b709f2a3C70aa87999696e74A9F8) {\n\n return KYBER_ETH_ADDRESS;\n\n } else {\n\n return getCollateralAddr(_joinAddr);\n\n }\n\n }\n\n\n\n function getAvailableLiquidity(address _joinAddr) internal view returns (uint liquidity) {\n\n address tokenAddr = getAaveCollAddr(_joinAddr);\n\n\n\n if (tokenAddr == KYBER_ETH_ADDRESS) {\n\n liquidity = AAVE_POOL_CORE.balance;\n\n } else {\n\n liquidity = ERC20(tokenAddr).balanceOf(AAVE_POOL_CORE);\n\n }\n\n }\n\n\n\n function _packData(\n\n uint _cdpId,\n\n uint _gasCost,\n\n address _joinAddr,\n\n SaverExchangeCore.ExchangeData memory exchangeData\n\n ) internal pure returns (uint[6] memory numData, address[5] memory addrData, bytes memory callData) {\n\n\n\n numData = [\n\n exchangeData.srcAmount,\n\n exchangeData.destAmount,\n\n exchangeData.minPrice,\n\n exchangeData.price0x,\n\n _cdpId,\n\n _gasCost\n\n ];\n\n\n\n addrData = [\n\n exchangeData.srcAddr,\n\n exchangeData.destAddr,\n\n exchangeData.exchangeAddr,\n\n exchangeData.wrapper,\n\n _joinAddr\n\n ];\n\n\n\n callData = exchangeData.callData;\n\n }\n\n\n\n}\n\ncontract SavingsProxy is DSRSavingsProtocol, CompoundSavingsProtocol {\n\n address public constant ADAI_ADDRESS = 0xfC1E690f61EFd961294b3e1Ce3313fBD8aa4f85d;\n\n\n\n address public constant SAVINGS_DYDX_ADDRESS = 0x03b1565e070df392e48e7a8e01798C4B00E534A5;\n\n address public constant SAVINGS_AAVE_ADDRESS = 0x535B9035E9bA8D7efe0FeAEac885fb65b303E37C;\n\n address public constant NEW_IDAI_ADDRESS = 0x493C57C4763932315A328269E1ADaD09653B9081;\n\n\n\n address public constant COMP_ADDRESS = 0x3d9819210A31b4961b30EF54bE2aeD79B9c9Cd3B;\n\n\n\n address public constant SAVINGS_LOGGER_ADDRESS = 0x89b3635BD2bAD145C6f92E82C9e83f06D5654984;\n\n address public constant SOLO_MARGIN_ADDRESS = 0x1E0447b19BB6EcFdAe1e4AE1694b0C3659614e4e;\n\n\n\n enum SavingsProtocol {Compound, Dydx, Fulcrum, Dsr, Aave}\n\n\n\n function deposit(SavingsProtocol _protocol, uint256 _amount) public {\n\n if (_protocol == SavingsProtocol.Dsr) {\n\n dsrDeposit(_amount, true);\n\n } else if (_protocol == SavingsProtocol.Compound) {\n\n compDeposit(msg.sender, _amount);\n\n } else {\n\n _deposit(_protocol, _amount, true);\n\n }\n\n\n\n SavingsLogger(SAVINGS_LOGGER_ADDRESS).logDeposit(msg.sender, uint8(_protocol), _amount);\n\n }\n\n\n\n function withdraw(SavingsProtocol _protocol, uint256 _amount) public {\n\n if (_protocol == SavingsProtocol.Dsr) {\n\n dsrWithdraw(_amount, true);\n\n } else if (_protocol == SavingsProtocol.Compound) {\n\n compWithdraw(msg.sender, _amount);\n\n } else {\n\n _withdraw(_protocol, _amount, true);\n\n }\n\n\n\n SavingsLogger(SAVINGS_LOGGER_ADDRESS).logWithdraw(msg.sender, uint8(_protocol), _amount);\n\n }\n\n\n\n function swap(SavingsProtocol _from, SavingsProtocol _to, uint256 _amount) public {\n\n if (_from == SavingsProtocol.Dsr) {\n\n dsrWithdraw(_amount, false);\n\n } else if (_from == SavingsProtocol.Compound) {\n\n compWithdraw(msg.sender, _amount);\n\n } else {\n\n _withdraw(_from, _amount, false);\n\n }\n\n\n\n // possible to withdraw 1-2 wei less than actual amount due to division precision\n\n // so we deposit all amount on DSProxy\n\n uint256 amountToDeposit = ERC20(DAI_ADDRESS).balanceOf(address(this));\n\n\n\n if (_to == SavingsProtocol.Dsr) {\n\n dsrDeposit(amountToDeposit, false);\n\n } else if (_from == SavingsProtocol.Compound) {\n\n compDeposit(msg.sender, _amount);\n\n } else {\n\n _deposit(_to, amountToDeposit, false);\n\n }\n\n\n\n SavingsLogger(SAVINGS_LOGGER_ADDRESS).logSwap(\n\n msg.sender,\n\n uint8(_from),\n\n uint8(_to),\n\n _amount\n\n );\n\n }\n\n\n\n function withdrawDai() public {\n\n ERC20(DAI_ADDRESS).transfer(msg.sender, ERC20(DAI_ADDRESS).balanceOf(address(this)));\n\n }\n\n\n\n function claimComp() public {\n\n ComptrollerInterface(COMP_ADDRESS).claimComp(address(this));\n\n }\n\n\n\n function getAddress(SavingsProtocol _protocol) public pure returns (address) {\n\n\n\n if (_protocol == SavingsProtocol.Dydx) {\n\n return SAVINGS_DYDX_ADDRESS;\n\n }\n\n\n\n if (_protocol == SavingsProtocol.Aave) {\n\n return SAVINGS_AAVE_ADDRESS;\n\n }\n\n }\n\n\n\n function _deposit(SavingsProtocol _protocol, uint256 _amount, bool _fromUser) internal {\n\n if (_fromUser) {\n\n ERC20(DAI_ADDRESS).transferFrom(msg.sender, address(this), _amount);\n\n }\n\n\n\n approveDeposit(_protocol);\n\n\n\n ProtocolInterface(getAddress(_protocol)).deposit(address(this), _amount);\n\n\n\n endAction(_protocol);\n\n }\n\n\n\n function _withdraw(SavingsProtocol _protocol, uint256 _amount, bool _toUser) public {\n\n approveWithdraw(_protocol);\n\n\n\n ProtocolInterface(getAddress(_protocol)).withdraw(address(this), _amount);\n\n\n\n endAction(_protocol);\n\n\n\n if (_toUser) {\n\n withdrawDai();\n\n }\n\n }\n\n\n\n function endAction(SavingsProtocol _protocol) internal {\n\n if (_protocol == SavingsProtocol.Dydx) {\n\n setDydxOperator(false);\n\n }\n\n }\n\n\n\n function approveDeposit(SavingsProtocol _protocol) internal {\n\n if (_protocol == SavingsProtocol.Compound || _protocol == SavingsProtocol.Fulcrum || _protocol == SavingsProtocol.Aave) {\n\n ERC20(DAI_ADDRESS).approve(getAddress(_protocol), uint256(-1));\n\n }\n\n\n\n if (_protocol == SavingsProtocol.Dydx) {\n\n ERC20(DAI_ADDRESS).approve(SOLO_MARGIN_ADDRESS, uint256(-1));\n\n setDydxOperator(true);\n\n }\n\n }\n\n\n\n function approveWithdraw(SavingsProtocol _protocol) internal {\n\n if (_protocol == SavingsProtocol.Compound) {\n\n ERC20(NEW_CDAI_ADDRESS).approve(getAddress(_protocol), uint256(-1));\n\n }\n\n\n\n if (_protocol == SavingsProtocol.Dydx) {\n\n setDydxOperator(true);\n\n }\n\n\n\n if (_protocol == SavingsProtocol.Fulcrum) {\n\n ERC20(NEW_IDAI_ADDRESS).approve(getAddress(_protocol), uint256(-1));\n\n }\n\n\n\n if (_protocol == SavingsProtocol.Aave) {\n\n ERC20(ADAI_ADDRESS).approve(getAddress(_protocol), uint256(-1));\n\n }\n\n }\n\n\n\n function setDydxOperator(bool _trusted) internal {\n\n ISoloMargin.OperatorArg[] memory operatorArgs = new ISoloMargin.OperatorArg[](1);\n\n operatorArgs[0] = ISoloMargin.OperatorArg({\n\n operator: getAddress(SavingsProtocol.Dydx),\n\n trusted: _trusted\n\n });\n\n\n\n ISoloMargin(SOLO_MARGIN_ADDRESS).setOperators(operatorArgs);\n\n }\n\n}\n\ncontract LoanShifterReceiver is SaverExchangeCore, FlashLoanReceiverBase, AdminAuth {\n\n\n\n ILendingPoolAddressesProvider public LENDING_POOL_ADDRESS_PROVIDER = ILendingPoolAddressesProvider(0x24a42fD28C976A61Df5D00D0599C34c4f90748c8);\n\n address public constant ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n\n\n ShifterRegistry public constant shifterRegistry = ShifterRegistry(0x2612Af3A521c2df9EAF28422Ca335b04AdF3ac66);\n\n\n\n struct ParamData {\n\n bytes proxyData1;\n\n bytes proxyData2;\n\n address proxy;\n\n address debtAddr;\n\n uint8 protocol1;\n\n uint8 protocol2;\n\n uint8 swapType;\n\n }\n\n\n\n constructor() FlashLoanReceiverBase(LENDING_POOL_ADDRESS_PROVIDER) public {}\n\n\n\n function executeOperation(\n\n address _reserve,\n\n uint256 _amount,\n\n uint256 _fee,\n\n bytes calldata _params)\n\n external override {\n\n // Format the call data for DSProxy\n\n (ParamData memory paramData, ExchangeData memory exchangeData)\n\n = packFunctionCall(_amount, _fee, _params);\n\n\n\n address protocolAddr1 = shifterRegistry.getAddr(getNameByProtocol(paramData.protocol1));\n\n address protocolAddr2 = shifterRegistry.getAddr(getNameByProtocol(paramData.protocol2));\n\n\n\n // Send Flash loan amount to DSProxy\n\n sendToProxy(payable(paramData.proxy), _reserve, _amount);\n\n\n\n // Execute the Close/Change debt operation\n\n DSProxyInterface(paramData.proxy).execute(protocolAddr1, paramData.proxyData1);\n\n\n\n if (paramData.swapType == 1) { // COLL_SWAP\n\n exchangeData.srcAmount = getBalance(exchangeData.srcAddr);\n\n (, uint amount) = _sell(exchangeData);\n\n\n\n sendToProxy(payable(paramData.proxy), exchangeData.destAddr, amount);\n\n } else if (paramData.swapType == 2) { // DEBT_SWAP\n\n exchangeData.destAmount = (_amount + _fee);\n\n _buy(exchangeData);\n\n\n\n // Send extra to DSProxy\n\n sendToProxy(payable(paramData.proxy), exchangeData.srcAddr, ERC20(exchangeData.srcAddr).balanceOf(address(this)));\n\n\n\n } else { // NO_SWAP just send tokens to proxy\n\n sendToProxy(payable(paramData.proxy), exchangeData.srcAddr, getBalance(exchangeData.srcAddr));\n\n }\n\n\n\n // Execute the Open operation\n\n DSProxyInterface(paramData.proxy).execute(protocolAddr2, paramData.proxyData2);\n\n\n\n // Repay FL\n\n transferFundsBackToPoolInternal(_reserve, _amount.add(_fee));\n\n\n\n // if there is some eth left (0x fee), return it to user\n\n if (address(this).balance > 0) {\n\n tx.origin.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n function packFunctionCall(uint _amount, uint _fee, bytes memory _params)\n\n internal pure returns (ParamData memory paramData, ExchangeData memory exchangeData) {\n\n\n\n (\n\n uint[8] memory numData, // collAmount, debtAmount, id1, id2, srcAmount, destAmount, minPrice, price0x\n\n address[8] memory addrData, // addrLoan1, addrLoan2, debtAddr1, debtAddr2, srcAddr, destAddr, exchangeAddr, wrapper\n\n uint8[3] memory enumData, // fromProtocol, toProtocol, swapType\n\n bytes memory callData,\n\n address proxy\n\n )\n\n = abi.decode(_params, (uint256[8],address[8],uint8[3],bytes,address));\n\n\n\n bytes memory proxyData1;\n\n bytes memory proxyData2;\n\n uint openDebtAmount = (_amount + _fee);\n\n\n\n if (enumData[0] == 0) { // MAKER FROM\n\n proxyData1 = abi.encodeWithSignature(\"close(uint256,address,uint256,uint256)\", numData[2], addrData[0], _amount, numData[0]);\n\n\n\n } else if(enumData[0] == 1) { // COMPOUND FROM\n\n if (enumData[2] == 2) { // DEBT_SWAP\n\n proxyData1 = abi.encodeWithSignature(\"changeDebt(address,address,uint256,uint256)\", addrData[2], addrData[3], (_amount + _fee), numData[4]);\n\n } else {\n\n proxyData1 = abi.encodeWithSignature(\"close(address,address,uint256,uint256)\", addrData[0], addrData[2], numData[0], numData[1]);\n\n }\n\n }\n\n\n\n if (enumData[1] == 0) { // MAKER TO\n\n proxyData2 = abi.encodeWithSignature(\"open(uint256,address,uint256)\", numData[3], addrData[1], openDebtAmount);\n\n } else if(enumData[1] == 1) { // COMPOUND TO\n\n if (enumData[2] == 2) { // DEBT_SWAP\n\n proxyData2 = abi.encodeWithSignature(\"repayAll(address)\", addrData[3]);\n\n } else {\n\n proxyData2 = abi.encodeWithSignature(\"open(address,address,uint256)\", addrData[1], addrData[3], openDebtAmount);\n\n }\n\n }\n\n\n\n\n\n paramData = ParamData({\n\n proxyData1: proxyData1,\n\n proxyData2: proxyData2,\n\n proxy: proxy,\n\n debtAddr: addrData[2],\n\n protocol1: enumData[0],\n\n protocol2: enumData[1],\n\n swapType: enumData[2]\n\n });\n\n\n\n exchangeData = SaverExchangeCore.ExchangeData({\n\n srcAddr: addrData[4],\n\n destAddr: addrData[5],\n\n srcAmount: numData[4],\n\n destAmount: numData[5],\n\n minPrice: numData[6],\n\n wrapper: addrData[7],\n\n exchangeAddr: addrData[6],\n\n callData: callData,\n\n price0x: numData[7]\n\n });\n\n\n\n }\n\n\n\n function sendToProxy(address payable _proxy, address _reserve, uint _amount) internal {\n\n if (_reserve != ETH_ADDRESS) {\n\n ERC20(_reserve).safeTransfer(_proxy, _amount);\n\n }\n\n\n\n _proxy.transfer(address(this).balance);\n\n }\n\n\n\n function getNameByProtocol(uint8 _proto) internal pure returns (string memory) {\n\n if (_proto == 0) {\n\n return \"MCD_SHIFTER\";\n\n } else if (_proto == 1) {\n\n return \"COMP_SHIFTER\";\n\n }\n\n }\n\n\n\n receive() external override(FlashLoanReceiverBase, SaverExchangeCore) payable {}\n\n}\n\ncontract CompShifter is CompoundSaverHelper {\n\n\n\n address public constant COMPTROLLER_ADDR = 0x3d9819210A31b4961b30EF54bE2aeD79B9c9Cd3B;\n\n\n\n function getWholeDebt(uint _cdpId, address _joinAddr) public virtual returns(uint loanAmount) {\n\n return CTokenInterface(_joinAddr).borrowBalanceCurrent(msg.sender);\n\n }\n\n\n\n function close(\n\n address _cCollAddr,\n\n address _cBorrowAddr,\n\n uint _collAmount,\n\n uint _debtAmount\n\n ) public {\n\n address collAddr = getUnderlyingAddr(_cCollAddr);\n\n\n\n // payback debt\n\n paybackDebt(_debtAmount, _cBorrowAddr, getUnderlyingAddr(_cBorrowAddr), tx.origin);\n\n\n\n // draw coll\n\n if (CTokenInterface(_cBorrowAddr).borrowBalanceCurrent(address(this)) == 0) {\n\n uint cTokenBalance = CTokenInterface(_cCollAddr).balanceOf(address(this));\n\n require(CTokenInterface(_cCollAddr).redeem(cTokenBalance) == 0);\n\n } else {\n\n require(CTokenInterface(_cCollAddr).redeemUnderlying(_collAmount) == 0);\n\n }\n\n\n\n // Send back money to repay FL\n\n if (collAddr == ETH_ADDRESS) {\n\n msg.sender.transfer(address(this).balance);\n\n } else {\n\n ERC20(collAddr).transfer(msg.sender, ERC20(collAddr).balanceOf(address(this)));\n\n }\n\n }\n\n\n\n function changeDebt(\n\n address _cBorrowAddrOld,\n\n address _cBorrowAddrNew,\n\n uint _debtAmountOld,\n\n uint _debtAmountNew\n\n ) public {\n\n\n\n address borrowAddrNew = getUnderlyingAddr(_cBorrowAddrNew);\n\n\n\n // payback debt in one token\n\n paybackDebt(_debtAmountOld, _cBorrowAddrOld, getUnderlyingAddr(_cBorrowAddrOld), tx.origin);\n\n\n\n // draw debt in another one\n\n borrowCompound(_cBorrowAddrNew, _debtAmountNew);\n\n\n\n // Send back money to repay FL\n\n if (borrowAddrNew == ETH_ADDRESS) {\n\n msg.sender.transfer(address(this).balance);\n\n } else {\n\n ERC20(borrowAddrNew).transfer(msg.sender, ERC20(borrowAddrNew).balanceOf(address(this)));\n\n }\n\n }\n\n\n\n function open(\n\n address _cCollAddr,\n\n address _cBorrowAddr,\n\n uint _debtAmount\n\n ) public {\n\n\n\n address collAddr = getUnderlyingAddr(_cCollAddr);\n\n address borrowAddr = getUnderlyingAddr(_cBorrowAddr);\n\n\n\n uint collAmount = 0;\n\n\n\n if (collAddr == ETH_ADDRESS) {\n\n collAmount = address(this).balance;\n\n } else {\n\n collAmount = ERC20(collAddr).balanceOf(address(this));\n\n }\n\n\n\n depositCompound(collAddr, _cCollAddr, collAmount);\n\n\n\n // draw debt\n\n borrowCompound(_cBorrowAddr, _debtAmount);\n\n\n\n // Send back money to repay FL\n\n if (borrowAddr == ETH_ADDRESS) {\n\n msg.sender.transfer(address(this).balance);\n\n } else {\n\n ERC20(borrowAddr).transfer(msg.sender, ERC20(borrowAddr).balanceOf(address(this)));\n\n }\n\n\n\n }\n\n\n\n function repayAll(address _cTokenAddr) public {\n\n address tokenAddr = getUnderlyingAddr(_cTokenAddr);\n\n uint amount = ERC20(tokenAddr).balanceOf(address(this));\n\n\n\n if (amount != 0) {\n\n paybackDebt(amount, _cTokenAddr, tokenAddr, tx.origin);\n\n }\n\n }\n\n\n\n function depositCompound(address _tokenAddr, address _cTokenAddr, uint _amount) internal {\n\n approveCToken(_tokenAddr, _cTokenAddr);\n\n\n\n enterMarket(_cTokenAddr);\n\n\n\n if (_tokenAddr != ETH_ADDRESS) {\n\n require(CTokenInterface(_cTokenAddr).mint(_amount) == 0, \"mint error\");\n\n } else {\n\n CEtherInterface(_cTokenAddr).mint{value: _amount}();\n\n }\n\n }\n\n\n\n function borrowCompound(address _cTokenAddr, uint _amount) internal {\n\n enterMarket(_cTokenAddr);\n\n\n\n require(CTokenInterface(_cTokenAddr).borrow(_amount) == 0);\n\n }\n\n\n\n function enterMarket(address _cTokenAddr) public {\n\n address[] memory markets = new address[](1);\n\n markets[0] = _cTokenAddr;\n\n\n\n ComptrollerInterface(COMPTROLLER_ADDR).enterMarkets(markets);\n\n }\n\n\n\n}\n\ncontract McdShifter is MCDSaverProxy {\n\n\n\n address public constant OPEN_PROXY_ACTIONS = 0x6d0984E80a86f26c0dd564ca0CF74a8E9Da03305;\n\n\n\n function getLoanAmount(uint _cdpId, address _joinAddr) public view virtual returns(uint loanAmount) {\n\n bytes32 ilk = manager.ilks(_cdpId);\n\n\n\n (, uint rate,,,) = vat.ilks(ilk);\n\n (, uint art) = vat.urns(ilk, manager.urns(_cdpId));\n\n uint dai = vat.dai(manager.urns(_cdpId));\n\n\n\n uint rad = sub(mul(art, rate), dai);\n\n loanAmount = rad / RAY;\n\n\n\n loanAmount = mul(loanAmount, RAY) < rad ? loanAmount + 1 : loanAmount;\n\n }\n\n\n\n function close(\n\n uint _cdpId,\n\n address _joinAddr,\n\n uint _loanAmount,\n\n uint _collateral\n\n ) public {\n\n address owner = getOwner(manager, _cdpId);\n\n bytes32 ilk = manager.ilks(_cdpId);\n\n (uint maxColl, ) = getCdpInfo(manager, _cdpId, ilk);\n\n\n\n // repay dai debt cdp\n\n paybackDebt(_cdpId, ilk, _loanAmount, owner);\n\n\n\n maxColl = _collateral > maxColl ? maxColl : _collateral;\n\n\n\n // withdraw collateral from cdp\n\n drawMaxCollateral(_cdpId, _joinAddr, maxColl);\n\n\n\n // send back to msg.sender\n\n if (_joinAddr == ETH_JOIN_ADDRESS) {\n\n msg.sender.transfer(address(this).balance);\n\n } else {\n\n ERC20 collToken = ERC20(getCollateralAddr(_joinAddr));\n\n collToken.transfer(msg.sender, collToken.balanceOf(address(this)));\n\n }\n\n }\n\n\n\n function open(\n\n uint _cdpId,\n\n address _joinAddr,\n\n uint _debtAmount\n\n ) public {\n\n\n\n uint collAmount = 0;\n\n\n\n if (_joinAddr == ETH_JOIN_ADDRESS) {\n\n collAmount = address(this).balance;\n\n } else {\n\n collAmount = ERC20(address(Join(_joinAddr).gem())).balanceOf(address(this));\n\n }\n\n\n\n if (_cdpId == 0) {\n\n openAndWithdraw(collAmount, _debtAmount, address(this), _joinAddr);\n\n } else {\n\n // add collateral\n\n addCollateral(_cdpId, _joinAddr, collAmount);\n\n // draw debt\n\n drawDai(_cdpId, manager.ilks(_cdpId), _debtAmount);\n\n }\n\n\n\n // transfer to repay FL\n\n ERC20(DAI_ADDRESS).transfer(msg.sender, ERC20(DAI_ADDRESS).balanceOf(address(this)));\n\n\n\n if (address(this).balance > 0) {\n\n tx.origin.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n function openAndWithdraw(uint _collAmount, uint _debtAmount, address _proxy, address _joinAddrTo) internal {\n\n bytes32 ilk = Join(_joinAddrTo).ilk();\n\n\n\n if (_joinAddrTo == ETH_JOIN_ADDRESS) {\n\n MCDCreateProxyActions(OPEN_PROXY_ACTIONS).openLockETHAndDraw{value: address(this).balance}(\n\n address(manager),\n\n JUG_ADDRESS,\n\n ETH_JOIN_ADDRESS,\n\n DAI_JOIN_ADDRESS,\n\n ilk,\n\n _debtAmount,\n\n _proxy\n\n );\n\n } else {\n\n ERC20(getCollateralAddr(_joinAddrTo)).approve(OPEN_PROXY_ACTIONS, uint256(-1));\n\n\n\n MCDCreateProxyActions(OPEN_PROXY_ACTIONS).openLockGemAndDraw(\n\n address(manager),\n\n JUG_ADDRESS,\n\n _joinAddrTo,\n\n DAI_JOIN_ADDRESS,\n\n ilk,\n\n _collAmount,\n\n _debtAmount,\n\n true,\n\n _proxy\n\n );\n\n }\n\n }\n\n\n\n\n\n function drawMaxCollateral(uint _cdpId, address _joinAddr, uint _amount) internal returns (uint) {\n\n manager.frob(_cdpId, -toPositiveInt(_amount), 0);\n\n manager.flux(_cdpId, address(this), _amount);\n\n\n\n uint joinAmount = _amount;\n\n\n\n if (Join(_joinAddr).dec() != 18) {\n\n joinAmount = _amount / (10 ** (18 - Join(_joinAddr).dec()));\n\n }\n\n\n\n Join(_joinAddr).exit(address(this), joinAmount);\n\n\n\n if (_joinAddr == ETH_JOIN_ADDRESS) {\n\n Join(_joinAddr).gem().withdraw(joinAmount); // Weth -> Eth\n\n }\n\n\n\n return joinAmount;\n\n }\n\n\n\n}\n\ncontract AaveSaverProxy is GasBurner, SaverExchangeCore, AaveHelper {\n\n\n\n\taddress public constant DEFISAVER_LOGGER = 0x5c55B921f590a89C1Ebe84dF170E655a82b62126;\n\n\n\n uint public constant VARIABLE_RATE = 2;\n\n\n\n\tfunction repay(ExchangeData memory _data, uint _gasCost) public payable burnGas(20) {\n\n\n\n\t\taddress lendingPoolCore = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPoolCore();\n\n\t\taddress lendingPool = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n\t\taddress payable user = payable(getUserAddress());\n\n\n\n\t\tuint256 maxCollateral = getMaxCollateral(_data.srcAddr, address(this));\n\n\t\t// don't swap more than maxCollateral\n\n\t\t_data.srcAmount = _data.srcAmount > maxCollateral ? maxCollateral : _data.srcAmount;\n\n\n\n\t\t// redeem collateral\n\n\t\taddress aTokenCollateral = ILendingPool(lendingPoolCore).getReserveATokenAddress(_data.srcAddr);\n\n\t\tIAToken(aTokenCollateral).redeem(_data.srcAmount);\n\n\n\n\t\t// swap\n\n\t\t(, uint256 destAmount) = _sell(_data);\n\n\n\n\t\tdestAmount -= getFee(destAmount, user, _gasCost, _data.destAddr);\n\n\n\n\t\t// payback\n\n\t\tif (_data.destAddr == ETH_ADDR) {\n\n\t\t\tILendingPool(lendingPool).repay{value: destAmount}(_data.destAddr, destAmount, payable(address(this)));\n\n\t\t} else {\n\n\t\t\tapproveToken(_data.destAddr, lendingPoolCore);\n\n\t\t\tILendingPool(lendingPool).repay(_data.destAddr, destAmount, payable(address(this)));\n\n\t\t}\n\n\n\n\t\t// first return 0x fee to msg.sender as it is the address that actually sent 0x fee\n\n\t\tsendContractBalance(ETH_ADDR, msg.sender, min(address(this).balance, msg.value));\n\n\t\t// send all leftovers from dest addr to proxy owner\n\n\t\tsendFullContractBalance(_data.destAddr, user);\n\n\n\n\t\tDefisaverLogger(DEFISAVER_LOGGER).Log(address(this), msg.sender, \"AaveRepay\", abi.encode(_data.srcAddr, _data.destAddr, _data.srcAmount, destAmount));\n\n\t}\n\n\n\n\tfunction boost(ExchangeData memory _data, uint _gasCost) public payable burnGas(20) {\n\n\t\taddress lendingPoolCore = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPoolCore();\n\n\t\taddress lendingPool = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n\t\t(,,,,,,,,,bool collateralEnabled) = ILendingPool(lendingPool).getUserReserveData(_data.destAddr, address(this));\n\n\t\taddress payable user = payable(getUserAddress());\n\n\n\n\t\tuint256 maxBorrow = getMaxBorrow(_data.srcAddr, address(this));\n\n\t\t_data.srcAmount = _data.srcAmount > maxBorrow ? maxBorrow : _data.srcAmount;\n\n\n\n\t\t// borrow amount\n\n\t\tILendingPool(lendingPool).borrow(_data.srcAddr, _data.srcAmount, VARIABLE_RATE, AAVE_REFERRAL_CODE);\n\n\t\t_data.srcAmount -= getFee(_data.srcAmount, user, _gasCost, _data.srcAddr);\n\n\n\n\t\t// swap\n\n\t\t(, uint256 destAmount) = _sell(_data);\n\n\n\n\t\tif (_data.destAddr == ETH_ADDR) {\n\n\t\t\tILendingPool(lendingPool).deposit{value: destAmount}(_data.destAddr, destAmount, AAVE_REFERRAL_CODE);\n\n\t\t} else {\n\n\t\t\tapproveToken(_data.destAddr, lendingPoolCore);\n\n\t\t\tILendingPool(lendingPool).deposit(_data.destAddr, destAmount, AAVE_REFERRAL_CODE);\n\n\t\t}\n\n\n\n\t\tif (!collateralEnabled) {\n\n ILendingPool(lendingPool).setUserUseReserveAsCollateral(_data.destAddr, true);\n\n }\n\n\n\n\t\t// returning to msg.sender as it is the address that actually sent 0x fee\n\n\t\tsendContractBalance(ETH_ADDR, msg.sender, min(address(this).balance, msg.value));\n\n\t\t// send all leftovers from dest addr to proxy owner\n\n\t\tsendFullContractBalance(_data.destAddr, user);\n\n\n\n\t\tDefisaverLogger(DEFISAVER_LOGGER).Log(address(this), msg.sender, \"AaveBoost\", abi.encode(_data.srcAddr, _data.destAddr, _data.srcAmount, destAmount));\n\n\t}\n\n}\n\ncontract CompoundLoanInfo is CompoundSafetyRatio {\n\n\n\n struct LoanData {\n\n address user;\n\n uint128 ratio;\n\n address[] collAddr;\n\n address[] borrowAddr;\n\n uint[] collAmounts;\n\n uint[] borrowAmounts;\n\n }\n\n\n\n struct TokenInfo {\n\n address cTokenAddress;\n\n address underlyingTokenAddress;\n\n uint collateralFactor;\n\n uint price;\n\n }\n\n\n\n struct TokenInfoFull {\n\n address underlyingTokenAddress;\n\n uint supplyRate;\n\n uint borrowRate;\n\n uint exchangeRate;\n\n uint marketLiquidity;\n\n uint totalSupply;\n\n uint totalBorrow;\n\n uint collateralFactor;\n\n uint price;\n\n }\n\n\n\n address public constant ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n address public constant CETH_ADDRESS = 0x4Ddc2D193948926D02f9B1fE9e1daa0718270ED5;\n\n\n\n\n\n /// @notice Calcualted the ratio of coll/debt for a compound user\n\n /// @param _user Address of the user\n\n function getRatio(address _user) public view returns (uint) {\n\n // For each asset the account is in\n\n return getSafetyRatio(_user);\n\n }\n\n\n\n /// @notice Fetches Compound prices for tokens\n\n /// @param _cTokens Arr. of cTokens for which to get the prices\n\n /// @return prices Array of prices\n\n function getPrices(address[] memory _cTokens) public view returns (uint[] memory prices) {\n\n prices = new uint[](_cTokens.length);\n\n address oracleAddr = comp.oracle();\n\n\n\n for (uint i = 0; i < _cTokens.length; ++i) {\n\n prices[i] = CompoundOracleInterface(oracleAddr).getUnderlyingPrice(_cTokens[i]);\n\n }\n\n }\n\n\n\n /// @notice Fetches Compound collateral factors for tokens\n\n /// @param _cTokens Arr. of cTokens for which to get the coll. factors\n\n /// @return collFactors Array of coll. factors\n\n function getCollFactors(address[] memory _cTokens) public view returns (uint[] memory collFactors) {\n\n collFactors = new uint[](_cTokens.length);\n\n\n\n for (uint i = 0; i < _cTokens.length; ++i) {\n\n (, collFactors[i]) = comp.markets(_cTokens[i]);\n\n }\n\n }\n\n\n\n /// @notice Fetches all the collateral/debt address and amounts, denominated in usd\n\n /// @param _user Address of the user\n\n /// @return data LoanData information\n\n function getLoanData(address _user) public view returns (LoanData memory data) {\n\n address[] memory assets = comp.getAssetsIn(_user);\n\n address oracleAddr = comp.oracle();\n\n\n\n data = LoanData({\n\n user: _user,\n\n ratio: 0,\n\n collAddr: new address[](assets.length),\n\n borrowAddr: new address[](assets.length),\n\n collAmounts: new uint[](assets.length),\n\n borrowAmounts: new uint[](assets.length)\n\n });\n\n\n\n uint collPos = 0;\n\n uint borrowPos = 0;\n\n\n\n for (uint i = 0; i < assets.length; i++) {\n\n address asset = assets[i];\n\n\n\n (, uint cTokenBalance, uint borrowBalance, uint exchangeRateMantissa)\n\n = CTokenInterface(asset).getAccountSnapshot(_user);\n\n\n\n Exp memory oraclePrice;\n\n\n\n if (cTokenBalance != 0 || borrowBalance != 0) {\n\n oraclePrice = Exp({mantissa: CompoundOracleInterface(oracleAddr).getUnderlyingPrice(asset)});\n\n }\n\n\n\n // Sum up collateral in Usd\n\n if (cTokenBalance != 0) {\n\n Exp memory exchangeRate = Exp({mantissa: exchangeRateMantissa});\n\n (, Exp memory tokensToUsd) = mulExp(exchangeRate, oraclePrice);\n\n\n\n data.collAddr[collPos] = asset;\n\n (, data.collAmounts[collPos]) = mulScalarTruncate(tokensToUsd, cTokenBalance);\n\n collPos++;\n\n }\n\n\n\n // Sum up debt in Usd\n\n if (borrowBalance != 0) {\n\n data.borrowAddr[borrowPos] = asset;\n\n (, data.borrowAmounts[borrowPos]) = mulScalarTruncate(oraclePrice, borrowBalance);\n\n borrowPos++;\n\n }\n\n }\n\n\n\n data.ratio = uint128(getSafetyRatio(_user));\n\n\n\n return data;\n\n }\n\n\n\n function getTokenBalances(address _user, address[] memory _cTokens) public view returns (uint[] memory balances, uint[] memory borrows) {\n\n balances = new uint[](_cTokens.length);\n\n borrows = new uint[](_cTokens.length);\n\n\n\n for (uint i = 0; i < _cTokens.length; i++) {\n\n address asset = _cTokens[i];\n\n\n\n (, uint cTokenBalance, uint borrowBalance, uint exchangeRateMantissa)\n\n = CTokenInterface(asset).getAccountSnapshot(_user);\n\n\n\n Exp memory exchangeRate = Exp({mantissa: exchangeRateMantissa});\n\n (, balances[i]) = mulScalarTruncate(exchangeRate, cTokenBalance);\n\n\n\n borrows[i] = borrowBalance;\n\n }\n\n\n\n }\n\n\n\n /// @notice Fetches all the collateral/debt address and amounts, denominated in usd\n\n /// @param _users Addresses of the user\n\n /// @return loans Array of LoanData information\n\n function getLoanDataArr(address[] memory _users) public view returns (LoanData[] memory loans) {\n\n loans = new LoanData[](_users.length);\n\n\n\n for (uint i = 0; i < _users.length; ++i) {\n\n loans[i] = getLoanData(_users[i]);\n\n }\n\n }\n\n\n\n /// @notice Calcualted the ratio of coll/debt for a compound user\n\n /// @param _users Addresses of the user\n\n /// @return ratios Array of ratios\n\n function getRatios(address[] memory _users) public view returns (uint[] memory ratios) {\n\n ratios = new uint[](_users.length);\n\n\n\n for (uint i = 0; i < _users.length; ++i) {\n\n ratios[i] = getSafetyRatio(_users[i]);\n\n }\n\n }\n\n\n\n /// @notice Information about cTokens\n\n /// @param _cTokenAddresses Array of cTokens addresses\n\n /// @return tokens Array of cTokens infomartion\n\n function getTokensInfo(address[] memory _cTokenAddresses) public returns(TokenInfo[] memory tokens) {\n\n tokens = new TokenInfo[](_cTokenAddresses.length);\n\n address oracleAddr = comp.oracle();\n\n\n\n for (uint i = 0; i < _cTokenAddresses.length; ++i) {\n\n (, uint collFactor) = comp.markets(_cTokenAddresses[i]);\n\n\n\n tokens[i] = TokenInfo({\n\n cTokenAddress: _cTokenAddresses[i],\n\n underlyingTokenAddress: getUnderlyingAddr(_cTokenAddresses[i]),\n\n collateralFactor: collFactor,\n\n price: CompoundOracleInterface(oracleAddr).getUnderlyingPrice(_cTokenAddresses[i])\n\n });\n\n }\n\n }\n\n\n\n /// @notice Information about cTokens\n\n /// @param _cTokenAddresses Array of cTokens addresses\n\n /// @return tokens Array of cTokens infomartion\n\n function getFullTokensInfo(address[] memory _cTokenAddresses) public returns(TokenInfoFull[] memory tokens) {\n\n tokens = new TokenInfoFull[](_cTokenAddresses.length);\n\n address oracleAddr = comp.oracle();\n\n\n\n for (uint i = 0; i < _cTokenAddresses.length; ++i) {\n\n (, uint collFactor) = comp.markets(_cTokenAddresses[i]);\n\n CTokenInterface cToken = CTokenInterface(_cTokenAddresses[i]);\n\n\n\n tokens[i] = TokenInfoFull({\n\n underlyingTokenAddress: getUnderlyingAddr(_cTokenAddresses[i]),\n\n supplyRate: cToken.supplyRatePerBlock(),\n\n borrowRate: cToken.borrowRatePerBlock(),\n\n exchangeRate: cToken.exchangeRateCurrent(),\n\n marketLiquidity: cToken.getCash(),\n\n totalSupply: cToken.totalSupply(),\n\n totalBorrow: cToken.totalBorrowsCurrent(),\n\n collateralFactor: collFactor,\n\n price: CompoundOracleInterface(oracleAddr).getUnderlyingPrice(_cTokenAddresses[i])\n\n });\n\n }\n\n }\n\n\n\n /// @notice Returns the underlying address of the cToken asset\n\n /// @param _cTokenAddress cToken address\n\n /// @return Token address of the cToken specified\n\n function getUnderlyingAddr(address _cTokenAddress) internal returns (address) {\n\n if (_cTokenAddress == CETH_ADDRESS) {\n\n return ETH_ADDRESS;\n\n } else {\n\n return CTokenInterface(_cTokenAddress).underlying();\n\n }\n\n }\n\n}\n\ncontract CompoundCreateReceiver is FlashLoanReceiverBase, SaverExchangeCore {\n\n\n\n ILendingPoolAddressesProvider public LENDING_POOL_ADDRESS_PROVIDER = ILendingPoolAddressesProvider(0x24a42fD28C976A61Df5D00D0599C34c4f90748c8);\n\n ShifterRegistry public constant shifterRegistry = ShifterRegistry(0x2E82103bD91053C781aaF39da17aE58ceE39d0ab);\n\n\n\n address public constant ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n address payable public constant WALLET_ADDR = 0x322d58b9E75a6918f7e7849AEe0fF09369977e08;\n\n address public constant DISCOUNT_ADDR = 0x1b14E8D511c9A4395425314f849bD737BAF8208F;\n\n\n\n // solhint-disable-next-line no-empty-blocks\n\n constructor() public FlashLoanReceiverBase(LENDING_POOL_ADDRESS_PROVIDER) {}\n\n\n\n /// @notice Called by Aave when sending back the FL amount\n\n /// @param _reserve The address of the borrowed token\n\n /// @param _amount Amount of FL tokens received\n\n /// @param _fee FL Aave fee\n\n /// @param _params The params that are sent from the original FL caller contract\n\n function executeOperation(\n\n address _reserve,\n\n uint256 _amount,\n\n uint256 _fee,\n\n bytes calldata _params)\n\n external override {\n\n // Format the call data for DSProxy\n\n (address payable proxyAddr, bytes memory proxyData, ExchangeData memory exchangeData)\n\n = packFunctionCall(_amount, _fee, _params);\n\n\n\n // Swap\n\n (, uint sellAmount) = _sell(exchangeData);\n\n\n\n // DFS fee\n\n getFee(sellAmount, exchangeData.destAddr, proxyAddr);\n\n\n\n // Send amount to DSProxy\n\n sendToProxy(proxyAddr, exchangeData.destAddr);\n\n\n\n address compOpenProxy = shifterRegistry.getAddr(\"COMP_SHIFTER\");\n\n\n\n // Execute the DSProxy call\n\n DSProxyInterface(proxyAddr).execute(compOpenProxy, proxyData);\n\n\n\n // Repay the loan with the money DSProxy sent back\n\n transferFundsBackToPoolInternal(_reserve, _amount.add(_fee));\n\n\n\n // if there is some eth left (0x fee), return it to user\n\n if (address(this).balance > 0) {\n\n // solhint-disable-next-line avoid-tx-origin\n\n tx.origin.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n /// @notice Formats function data call so we can call it through DSProxy\n\n /// @param _amount Amount of FL\n\n /// @param _fee Fee of the FL\n\n /// @param _params Saver proxy params\n\n function packFunctionCall(uint _amount, uint _fee, bytes memory _params) internal pure returns (address payable, bytes memory proxyData, ExchangeData memory exchangeData) {\n\n (\n\n uint[4] memory numData, // srcAmount, destAmount, minPrice, price0x\n\n address[6] memory cAddresses, // cCollAddr, cDebtAddr, srcAddr, destAddr, exchangeAddr, wrapper\n\n bytes memory callData,\n\n address proxy\n\n )\n\n = abi.decode(_params, (uint256[4],address[6],bytes,address));\n\n\n\n proxyData = abi.encodeWithSignature(\n\n \"open(address,address,uint256)\",\n\n cAddresses[0], cAddresses[1], (_amount + _fee));\n\n\n\n exchangeData = SaverExchangeCore.ExchangeData({\n\n srcAddr: cAddresses[2],\n\n destAddr: cAddresses[3],\n\n srcAmount: numData[0],\n\n destAmount: numData[1],\n\n minPrice: numData[2],\n\n wrapper: cAddresses[5],\n\n exchangeAddr: cAddresses[4],\n\n callData: callData,\n\n price0x: numData[3]\n\n });\n\n\n\n return (payable(proxy), proxyData, exchangeData);\n\n }\n\n\n\n /// @notice Send the FL funds received to DSProxy\n\n /// @param _proxy DSProxy address\n\n /// @param _reserve Token address\n\n function sendToProxy(address payable _proxy, address _reserve) internal {\n\n if (_reserve != ETH_ADDRESS) {\n\n ERC20(_reserve).safeTransfer(_proxy, ERC20(_reserve).balanceOf(address(this)));\n\n } else {\n\n _proxy.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n function getFee(uint _amount, address _tokenAddr, address _proxy) internal returns (uint feeAmount) {\n\n uint fee = 400;\n\n\n\n DSProxy proxy = DSProxy(payable(_proxy));\n\n address user = proxy.owner();\n\n\n\n if (Discount(DISCOUNT_ADDR).isCustomFeeSet(user)) {\n\n fee = Discount(DISCOUNT_ADDR).getCustomServiceFee(user);\n\n }\n\n\n\n feeAmount = (fee == 0) ? 0 : (_amount / fee);\n\n\n\n // fee can't go over 20% of the whole amount\n\n if (feeAmount > (_amount / 5)) {\n\n feeAmount = _amount / 5;\n\n }\n\n\n\n if (_tokenAddr == ETH_ADDRESS) {\n\n WALLET_ADDR.transfer(feeAmount);\n\n } else {\n\n ERC20(_tokenAddr).safeTransfer(WALLET_ADDR, feeAmount);\n\n }\n\n }\n\n\n\n // solhint-disable-next-line no-empty-blocks\n\n receive() external override(FlashLoanReceiverBase, SaverExchangeCore) payable {}\n\n}\n\ncontract CompoundSaverFlashLoan is FlashLoanReceiverBase, SaverExchangeCore {\n\n ILendingPoolAddressesProvider public LENDING_POOL_ADDRESS_PROVIDER = ILendingPoolAddressesProvider(0x24a42fD28C976A61Df5D00D0599C34c4f90748c8);\n\n\n\n address payable public COMPOUND_SAVER_FLASH_PROXY = 0xBcEAb469CbBA225E9dc9Cbd898808A4742687096;\n\n address public constant ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n\n\n address public owner;\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n constructor()\n\n FlashLoanReceiverBase(LENDING_POOL_ADDRESS_PROVIDER)\n\n public {\n\n owner = msg.sender;\n\n }\n\n\n\n /// @notice Called by Aave when sending back the FL amount\n\n /// @param _reserve The address of the borrowed token\n\n /// @param _amount Amount of FL tokens received\n\n /// @param _fee FL Aave fee\n\n /// @param _params The params that are sent from the original FL caller contract\n\n function executeOperation(\n\n address _reserve,\n\n uint256 _amount,\n\n uint256 _fee,\n\n bytes calldata _params)\n\n external override {\n\n // Format the call data for DSProxy\n\n (bytes memory proxyData, address payable proxyAddr) = packFunctionCall(_amount, _fee, _params);\n\n\n\n // Send Flash loan amount to DSProxy\n\n sendLoanToProxy(proxyAddr, _reserve, _amount);\n\n\n\n // Execute the DSProxy call\n\n DSProxyInterface(proxyAddr).execute(COMPOUND_SAVER_FLASH_PROXY, proxyData);\n\n\n\n // Repay the loan with the money DSProxy sent back\n\n transferFundsBackToPoolInternal(_reserve, _amount.add(_fee));\n\n\n\n // if there is some eth left (0x fee), return it to user\n\n if (address(this).balance > 0) {\n\n tx.origin.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n /// @notice Formats function data call so we can call it through DSProxy\n\n /// @param _amount Amount of FL\n\n /// @param _fee Fee of the FL\n\n /// @param _params Saver proxy params\n\n /// @return proxyData Formated function call data\n\n function packFunctionCall(uint _amount, uint _fee, bytes memory _params) internal pure returns (bytes memory proxyData, address payable) {\n\n (\n\n bytes memory exDataBytes,\n\n address[2] memory cAddresses, // cCollAddress, cBorrowAddress\n\n uint256 gasCost,\n\n bool isRepay,\n\n address payable proxyAddr\n\n )\n\n = abi.decode(_params, (bytes,address[2],uint256,bool,address));\n\n\n\n ExchangeData memory _exData = unpackExchangeData(exDataBytes);\n\n\n\n uint[2] memory flashLoanData = [_amount, _fee];\n\n\n\n if (isRepay) {\n\n proxyData = abi.encodeWithSignature(\"flashRepay((address,address,uint256,uint256,uint256,address,address,bytes,uint256),address[2],uint256,uint256[2])\", _exData, cAddresses, gasCost, flashLoanData);\n\n } else {\n\n proxyData = abi.encodeWithSignature(\"flashBoost((address,address,uint256,uint256,uint256,address,address,bytes,uint256),address[2],uint256,uint256[2])\", _exData, cAddresses, gasCost, flashLoanData);\n\n }\n\n\n\n return (proxyData, proxyAddr);\n\n }\n\n\n\n /// @notice Send the FL funds received to DSProxy\n\n /// @param _proxy DSProxy address\n\n /// @param _reserve Token address\n\n /// @param _amount Amount of tokens\n\n function sendLoanToProxy(address payable _proxy, address _reserve, uint _amount) internal {\n\n if (_reserve != ETH_ADDRESS) {\n\n ERC20(_reserve).safeTransfer(_proxy, _amount);\n\n }\n\n\n\n _proxy.transfer(address(this).balance);\n\n }\n\n\n\n receive() external override(SaverExchangeCore, FlashLoanReceiverBase) payable {}\n\n}\n\ncontract CompoundSaverFlashProxy is SaverExchangeCore, CompoundSaverHelper {\n\n\n\n address public constant DEFISAVER_LOGGER = 0x5c55B921f590a89C1Ebe84dF170E655a82b62126;\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n /// @notice Repays the position and sends tokens back for FL\n\n /// @param _exData Exchange data\n\n /// @param _cAddresses cTokens addreses and exchange [cCollAddress, cBorrowAddress]\n\n /// @param _gasCost Gas cost for transaction\n\n /// @param _flashLoanData Data about FL [amount, fee]\n\n function flashRepay(\n\n ExchangeData memory _exData,\n\n address[2] memory _cAddresses, // cCollAddress, cBorrowAddress\n\n uint256 _gasCost,\n\n uint[2] memory _flashLoanData // amount, fee\n\n ) public payable {\n\n enterMarket(_cAddresses[0], _cAddresses[1]);\n\n\n\n address payable user = payable(getUserAddress());\n\n uint flashBorrowed = _flashLoanData[0] + _flashLoanData[1];\n\n\n\n uint maxColl = getMaxCollateral(_cAddresses[0], address(this));\n\n\n\n // draw max coll\n\n require(CTokenInterface(_cAddresses[0]).redeemUnderlying(maxColl) == 0);\n\n\n\n address collToken = getUnderlyingAddr(_cAddresses[0]);\n\n address borrowToken = getUnderlyingAddr(_cAddresses[1]);\n\n\n\n uint swapAmount = 0;\n\n\n\n if (collToken != borrowToken) {\n\n // swap max coll + loanAmount\n\n _exData.srcAmount = maxColl + _flashLoanData[0];\n\n (,swapAmount) = _sell(_exData);\n\n\n\n // get fee\n\n swapAmount -= getFee(swapAmount, user, _gasCost, _cAddresses[1]);\n\n } else {\n\n swapAmount = (maxColl + _flashLoanData[0]);\n\n swapAmount -= getGasCost(swapAmount, _gasCost, _cAddresses[1]);\n\n }\n\n\n\n // payback debt\n\n paybackDebt(swapAmount, _cAddresses[1], borrowToken, user);\n\n\n\n // draw collateral for loanAmount + loanFee\n\n require(CTokenInterface(_cAddresses[0]).redeemUnderlying(flashBorrowed) == 0);\n\n\n\n // repay flash loan\n\n returnFlashLoan(collToken, flashBorrowed);\n\n\n\n DefisaverLogger(DEFISAVER_LOGGER).Log(address(this), msg.sender, \"CompoundRepay\", abi.encode(_exData.srcAmount, swapAmount, collToken, borrowToken));\n\n }\n\n\n\n /// @notice Boosts the position and sends tokens back for FL\n\n /// @param _exData Exchange data\n\n /// @param _cAddresses cTokens addreses and exchange [cCollAddress, cBorrowAddress]\n\n /// @param _gasCost Gas cost for specific transaction\n\n /// @param _flashLoanData Data about FL [amount, fee]\n\n function flashBoost(\n\n ExchangeData memory _exData,\n\n address[2] memory _cAddresses, // cCollAddress, cBorrowAddress\n\n uint256 _gasCost,\n\n uint[2] memory _flashLoanData // amount, fee\n\n ) public payable {\n\n enterMarket(_cAddresses[0], _cAddresses[1]);\n\n\n\n address payable user = payable(getUserAddress());\n\n uint flashBorrowed = _flashLoanData[0] + _flashLoanData[1];\n\n\n\n // borrow max amount\n\n uint borrowAmount = getMaxBorrow(_cAddresses[1], address(this));\n\n require(CTokenInterface(_cAddresses[1]).borrow(borrowAmount) == 0);\n\n\n\n address collToken = getUnderlyingAddr(_cAddresses[0]);\n\n address borrowToken = getUnderlyingAddr(_cAddresses[1]);\n\n\n\n uint swapAmount = 0;\n\n\n\n if (collToken != borrowToken) {\n\n // get dfs fee\n\n borrowAmount -= getFee((borrowAmount + _flashLoanData[0]), user, _gasCost, _cAddresses[1]);\n\n _exData.srcAmount = (borrowAmount + _flashLoanData[0]);\n\n\n\n (,swapAmount) = _sell(_exData);\n\n } else {\n\n swapAmount = (borrowAmount + _flashLoanData[0]);\n\n swapAmount -= getGasCost(swapAmount, _gasCost, _cAddresses[1]);\n\n }\n\n\n\n // deposit swaped collateral\n\n depositCollateral(collToken, _cAddresses[0], swapAmount);\n\n\n\n // borrow token to repay flash loan\n\n require(CTokenInterface(_cAddresses[1]).borrow(flashBorrowed) == 0);\n\n\n\n // repay flash loan\n\n returnFlashLoan(borrowToken, flashBorrowed);\n\n\n\n DefisaverLogger(DEFISAVER_LOGGER).Log(address(this), msg.sender, \"CompoundBoost\", abi.encode(_exData.srcAmount, swapAmount, collToken, borrowToken));\n\n }\n\n\n\n /// @notice Helper method to deposit tokens in Compound\n\n /// @param _collToken Token address of the collateral\n\n /// @param _cCollToken CToken address of the collateral\n\n /// @param _depositAmount Amount to deposit\n\n function depositCollateral(address _collToken, address _cCollToken, uint _depositAmount) internal {\n\n approveCToken(_collToken, _cCollToken);\n\n\n\n if (_collToken != ETH_ADDRESS) {\n\n require(CTokenInterface(_cCollToken).mint(_depositAmount) == 0);\n\n } else {\n\n CEtherInterface(_cCollToken).mint{value: _depositAmount}(); // reverts on fail\n\n }\n\n }\n\n\n\n /// @notice Returns the tokens/ether to the msg.sender which is the FL contract\n\n /// @param _tokenAddr Address of token which we return\n\n /// @param _amount Amount to return\n\n function returnFlashLoan(address _tokenAddr, uint _amount) internal {\n\n if (_tokenAddr != ETH_ADDRESS) {\n\n ERC20(_tokenAddr).safeTransfer(msg.sender, _amount);\n\n }\n\n\n\n msg.sender.transfer(address(this).balance);\n\n }\n\n\n\n}\n\ncontract CompoundSaverProxy is CompoundSaverHelper, SaverExchangeCore {\n\n\n\n DefisaverLogger public constant logger = DefisaverLogger(0x5c55B921f590a89C1Ebe84dF170E655a82b62126);\n\n\n\n /// @notice Withdraws collateral, converts to borrowed token and repays debt\n\n /// @dev Called through the DSProxy\n\n /// @param _exData Exchange data\n\n /// @param _cAddresses Coll/Debt addresses [cCollAddress, cBorrowAddress]\n\n /// @param _gasCost Gas cost for specific transaction\n\n function repay(\n\n ExchangeData memory _exData,\n\n address[2] memory _cAddresses, // cCollAddress, cBorrowAddress\n\n uint256 _gasCost\n\n ) public payable {\n\n enterMarket(_cAddresses[0], _cAddresses[1]);\n\n\n\n address payable user = payable(getUserAddress());\n\n\n\n uint maxColl = getMaxCollateral(_cAddresses[0], address(this));\n\n\n\n uint collAmount = (_exData.srcAmount > maxColl) ? maxColl : _exData.srcAmount;\n\n\n\n require(CTokenInterface(_cAddresses[0]).redeemUnderlying(collAmount) == 0);\n\n\n\n address collToken = getUnderlyingAddr(_cAddresses[0]);\n\n address borrowToken = getUnderlyingAddr(_cAddresses[1]);\n\n\n\n uint swapAmount = 0;\n\n\n\n if (collToken != borrowToken) {\n\n (, swapAmount) = _sell(_exData);\n\n swapAmount -= getFee(swapAmount, user, _gasCost, _cAddresses[1]);\n\n } else {\n\n swapAmount = collAmount;\n\n swapAmount -= getGasCost(swapAmount, _gasCost, _cAddresses[1]);\n\n }\n\n\n\n paybackDebt(swapAmount, _cAddresses[1], borrowToken, user);\n\n\n\n // handle 0x fee\n\n tx.origin.transfer(address(this).balance);\n\n\n\n // log amount, collToken, borrowToken\n\n logger.Log(address(this), msg.sender, \"CompoundRepay\", abi.encode(_exData.srcAmount, swapAmount, collToken, borrowToken));\n\n }\n\n\n\n /// @notice Borrows token, converts to collateral, and adds to position\n\n /// @dev Called through the DSProxy\n\n /// @param _exData Exchange data\n\n /// @param _cAddresses Coll/Debt addresses [cCollAddress, cBorrowAddress]\n\n /// @param _gasCost Gas cost for specific transaction\n\n function boost(\n\n ExchangeData memory _exData,\n\n address[2] memory _cAddresses, // cCollAddress, cBorrowAddress\n\n uint256 _gasCost\n\n ) public payable {\n\n enterMarket(_cAddresses[0], _cAddresses[1]);\n\n\n\n address payable user = payable(getUserAddress());\n\n\n\n uint maxBorrow = getMaxBorrow(_cAddresses[1], address(this));\n\n uint borrowAmount = (_exData.srcAmount > maxBorrow) ? maxBorrow : _exData.srcAmount;\n\n\n\n require(CTokenInterface(_cAddresses[1]).borrow(borrowAmount) == 0);\n\n\n\n address collToken = getUnderlyingAddr(_cAddresses[0]);\n\n address borrowToken = getUnderlyingAddr(_cAddresses[1]);\n\n\n\n uint swapAmount = 0;\n\n\n\n if (collToken != borrowToken) {\n\n borrowAmount -= getFee(borrowAmount, user, _gasCost, _cAddresses[1]);\n\n\n\n _exData.srcAmount = borrowAmount;\n\n (,swapAmount) = _sell(_exData);\n\n } else {\n\n swapAmount = borrowAmount;\n\n swapAmount -= getGasCost(swapAmount, _gasCost, _cAddresses[1]);\n\n }\n\n\n\n approveCToken(collToken, _cAddresses[0]);\n\n\n\n if (collToken != ETH_ADDRESS) {\n\n require(CTokenInterface(_cAddresses[0]).mint(swapAmount) == 0);\n\n } else {\n\n CEtherInterface(_cAddresses[0]).mint{value: swapAmount}(); // reverts on fail\n\n }\n\n\n\n // handle 0x fee\n\n tx.origin.transfer(address(this).balance);\n\n\n\n // log amount, collToken, borrowToken\n\n logger.Log(address(this), msg.sender, \"CompoundBoost\", abi.encode(_exData.srcAmount, swapAmount, collToken, borrowToken));\n\n }\n\n\n\n}\n\ncontract SaverExchange is SaverExchangeCore, AdminAuth, GasBurner {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n uint256 public constant SERVICE_FEE = 800; // 0.125% Fee\n\n\n\n // solhint-disable-next-line const-name-snakecase\n\n DefisaverLogger public constant logger = DefisaverLogger(0x5c55B921f590a89C1Ebe84dF170E655a82b62126);\n\n\n\n uint public burnAmount = 10;\n\n\n\n /// @notice Takes a src amount of tokens and converts it into the dest token\n\n /// @dev Takes fee from the _srcAmount before the exchange\n\n /// @param exData [srcAddr, destAddr, srcAmount, destAmount, minPrice, exchangeType, exchangeAddr, callData, price0x]\n\n /// @param _user User address who called the exchange\n\n function sell(ExchangeData memory exData, address payable _user) public payable burnGas(burnAmount) {\n\n\n\n // take fee\n\n uint dfsFee = getFee(exData.srcAmount, exData.srcAddr);\n\n exData.srcAmount = sub(exData.srcAmount, dfsFee);\n\n\n\n // Perform the exchange\n\n (address wrapper, uint destAmount) = _sell(exData);\n\n\n\n // send back any leftover ether or tokens\n\n sendLeftover(exData.srcAddr, exData.destAddr, _user);\n\n\n\n // log the event\n\n logger.Log(address(this), msg.sender, \"ExchangeSell\", abi.encode(wrapper, exData.srcAddr, exData.destAddr, exData.srcAmount, destAmount));\n\n }\n\n\n\n /// @notice Takes a dest amount of tokens and converts it from the src token\n\n /// @dev Send always more than needed for the swap, extra will be returned\n\n /// @param exData [srcAddr, destAddr, srcAmount, destAmount, minPrice, exchangeType, exchangeAddr, callData, price0x]\n\n /// @param _user User address who called the exchange\n\n function buy(ExchangeData memory exData, address payable _user) public payable burnGas(burnAmount){\n\n\n\n uint dfsFee = getFee(exData.srcAmount, exData.srcAddr);\n\n exData.srcAmount = sub(exData.srcAmount, dfsFee);\n\n\n\n // Perform the exchange\n\n (address wrapper, uint srcAmount) = _buy(exData);\n\n\n\n // send back any leftover ether or tokens\n\n sendLeftover(exData.srcAddr, exData.destAddr, _user);\n\n\n\n // log the event\n\n logger.Log(address(this), msg.sender, \"ExchangeBuy\", abi.encode(wrapper, exData.srcAddr, exData.destAddr, srcAmount, exData.destAmount));\n\n\n\n }\n\n\n\n /// @notice Takes a feePercentage and sends it to wallet\n\n /// @param _amount Dai amount of the whole trade\n\n /// @param _token Address of the token\n\n /// @return feeAmount Amount in Dai owner earned on the fee\n\n function getFee(uint256 _amount, address _token) internal returns (uint256 feeAmount) {\n\n uint256 fee = SERVICE_FEE;\n\n\n\n if (Discount(DISCOUNT_ADDRESS).isCustomFeeSet(msg.sender)) {\n\n fee = Discount(DISCOUNT_ADDRESS).getCustomServiceFee(msg.sender);\n\n }\n\n\n\n if (fee == 0) {\n\n feeAmount = 0;\n\n } else {\n\n feeAmount = _amount / fee;\n\n if (_token == KYBER_ETH_ADDRESS) {\n\n WALLET_ID.transfer(feeAmount);\n\n } else {\n\n ERC20(_token).safeTransfer(WALLET_ID, feeAmount);\n\n }\n\n }\n\n }\n\n\n\n /// @notice Changes the amount of gas token we burn for each call\n\n /// @dev Only callable by the owner\n\n /// @param _newBurnAmount New amount of gas tokens to be burned\n\n function changeBurnAmount(uint _newBurnAmount) public {\n\n require(owner == msg.sender);\n\n\n\n burnAmount = _newBurnAmount;\n\n }\n\n\n\n}\n\ncontract MCDSaverFlashLoan is MCDSaverProxy, AdminAuth, FlashLoanReceiverBase {\n\n\n\n ILendingPoolAddressesProvider public LENDING_POOL_ADDRESS_PROVIDER = ILendingPoolAddressesProvider(0x24a42fD28C976A61Df5D00D0599C34c4f90748c8);\n\n\n\n constructor() FlashLoanReceiverBase(LENDING_POOL_ADDRESS_PROVIDER) public {}\n\n\n\n struct SaverData {\n\n uint cdpId;\n\n uint gasCost;\n\n uint loanAmount;\n\n uint fee;\n\n address joinAddr;\n\n }\n\n\n\n function executeOperation(\n\n address _reserve,\n\n uint256 _amount,\n\n uint256 _fee,\n\n bytes calldata _params)\n\n external override {\n\n\n\n //check the contract has the specified balance\n\n require(_amount <= getBalanceInternal(address(this), _reserve),\n\n \"Invalid balance for the contract\");\n\n\n\n (\n\n bytes memory exDataBytes,\n\n uint cdpId,\n\n uint gasCost,\n\n address joinAddr,\n\n bool isRepay\n\n )\n\n = abi.decode(_params, (bytes,uint256,uint256,address,bool));\n\n\n\n ExchangeData memory exchangeData = unpackExchangeData(exDataBytes);\n\n\n\n SaverData memory saverData = SaverData({\n\n cdpId: cdpId,\n\n gasCost: gasCost,\n\n loanAmount: _amount,\n\n fee: _fee,\n\n joinAddr: joinAddr\n\n });\n\n\n\n if (isRepay) {\n\n repayWithLoan(exchangeData, saverData);\n\n } else {\n\n boostWithLoan(exchangeData, saverData);\n\n }\n\n\n\n transferFundsBackToPoolInternal(_reserve, _amount.add(_fee));\n\n\n\n // if there is some eth left (0x fee), return it to user\n\n if (address(this).balance > 0) {\n\n tx.origin.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n function boostWithLoan(\n\n ExchangeData memory _exchangeData,\n\n SaverData memory _saverData\n\n ) internal {\n\n\n\n address user = getOwner(manager, _saverData.cdpId);\n\n\n\n // Draw users Dai\n\n uint maxDebt = getMaxDebt(_saverData.cdpId, manager.ilks(_saverData.cdpId));\n\n uint daiDrawn = drawDai(_saverData.cdpId, manager.ilks(_saverData.cdpId), maxDebt);\n\n\n\n // Calc. fees\n\n uint dsfFee = getFee((daiDrawn + _saverData.loanAmount), _saverData.gasCost, user);\n\n uint afterFee = (daiDrawn + _saverData.loanAmount) - dsfFee;\n\n\n\n // Swap\n\n _exchangeData.srcAmount = afterFee;\n\n (, uint swapedAmount) = _sell(_exchangeData);\n\n\n\n // Return collateral\n\n addCollateral(_saverData.cdpId, _saverData.joinAddr, swapedAmount);\n\n\n\n // Draw Dai to repay the flash loan\n\n drawDai(_saverData.cdpId, manager.ilks(_saverData.cdpId), (_saverData.loanAmount + _saverData.fee));\n\n\n\n logger.Log(address(this), msg.sender, \"MCDFlashBoost\", abi.encode(_saverData.cdpId, owner, _exchangeData.srcAmount, swapedAmount));\n\n }\n\n\n\n function repayWithLoan(\n\n ExchangeData memory _exchangeData,\n\n SaverData memory _saverData\n\n ) internal {\n\n\n\n address user = getOwner(manager, _saverData.cdpId);\n\n bytes32 ilk = manager.ilks(_saverData.cdpId);\n\n\n\n // Draw collateral\n\n uint maxColl = getMaxCollateral(_saverData.cdpId, ilk, _saverData.joinAddr);\n\n uint collDrawn = drawCollateral(_saverData.cdpId, _saverData.joinAddr, maxColl);\n\n\n\n // Swap\n\n _exchangeData.srcAmount = (_saverData.loanAmount + collDrawn);\n\n (, uint swapedAmount) = _sell(_exchangeData);\n\n\n\n uint paybackAmount = (swapedAmount - getFee(swapedAmount, _saverData.gasCost, user));\n\n paybackAmount = limitLoanAmount(_saverData.cdpId, ilk, paybackAmount, user);\n\n\n\n // Payback the debt\n\n paybackDebt(_saverData.cdpId, ilk, paybackAmount, user);\n\n\n\n // Draw collateral to repay the flash loan\n\n drawCollateral(_saverData.cdpId, _saverData.joinAddr, (_saverData.loanAmount + _saverData.fee));\n\n\n\n logger.Log(address(this), msg.sender, \"MCDFlashRepay\", abi.encode(_saverData.cdpId, owner, _exchangeData.srcAmount, swapedAmount));\n\n }\n\n\n\n /// @notice Handles that the amount is not bigger than cdp debt and not dust\n\n function limitLoanAmount(uint _cdpId, bytes32 _ilk, uint _paybackAmount, address _owner) internal returns (uint256) {\n\n uint debt = getAllDebt(address(vat), manager.urns(_cdpId), manager.urns(_cdpId), _ilk);\n\n\n\n if (_paybackAmount > debt) {\n\n ERC20(DAI_ADDRESS).transfer(_owner, (_paybackAmount - debt));\n\n return debt;\n\n }\n\n\n\n uint debtLeft = debt - _paybackAmount;\n\n\n\n (,,,, uint dust) = vat.ilks(_ilk);\n\n dust = dust / 10**27;\n\n\n\n // Less than dust value\n\n if (debtLeft < dust) {\n\n uint amountOverDust = (dust - debtLeft);\n\n\n\n ERC20(DAI_ADDRESS).transfer(_owner, amountOverDust);\n\n\n\n return (_paybackAmount - amountOverDust);\n\n }\n\n\n\n return _paybackAmount;\n\n }\n\n\n\n receive() external override(FlashLoanReceiverBase, SaverExchangeCore) payable {}\n\n\n\n}\n\ncontract CompoundFlashLoanTaker is CompoundSaverProxy, ProxyPermission, GasBurner {\n\n ILendingPool public constant lendingPool = ILendingPool(0x398eC7346DcD622eDc5ae82352F02bE94C62d119);\n\n\n\n address payable public constant COMPOUND_SAVER_FLASH_LOAN = 0x0ed294340b6328647A652207AA72902747C84c94;\n\n\n\n /// @notice Repays the position with it's own fund or with FL if needed\n\n /// @param _exData Exchange data\n\n /// @param _cAddresses cTokens addreses and exchange [cCollAddress, cBorrowAddress, exchangeAddress]\n\n /// @param _gasCost Gas cost for specific transaction\n\n function repayWithLoan(\n\n ExchangeData memory _exData,\n\n address[2] memory _cAddresses, // cCollAddress, cBorrowAddress\n\n uint256 _gasCost\n\n ) public payable burnGas(25) {\n\n uint maxColl = getMaxCollateral(_cAddresses[0], address(this));\n\n\n\n if (_exData.srcAmount <= maxColl) {\n\n repay(_exData, _cAddresses, _gasCost);\n\n } else {\n\n // 0x fee\n\n COMPOUND_SAVER_FLASH_LOAN.transfer(msg.value);\n\n\n\n uint loanAmount = (_exData.srcAmount - maxColl);\n\n bytes memory encoded = packExchangeData(_exData);\n\n bytes memory paramsData = abi.encode(encoded, _cAddresses, _gasCost, true, address(this));\n\n\n\n givePermission(COMPOUND_SAVER_FLASH_LOAN);\n\n\n\n lendingPool.flashLoan(COMPOUND_SAVER_FLASH_LOAN, getUnderlyingAddr(_cAddresses[0]), loanAmount, paramsData);\n\n\n\n removePermission(COMPOUND_SAVER_FLASH_LOAN);\n\n\n\n logger.Log(address(this), msg.sender, \"CompoundFlashRepay\", abi.encode(loanAmount, _exData.srcAmount, _cAddresses[0]));\n\n }\n\n }\n\n\n\n /// @notice Boosts the position with it's own fund or with FL if needed\n\n /// @param _exData Exchange data\n\n /// @param _cAddresses cTokens addreses and exchange [cCollAddress, cBorrowAddress, exchangeAddress]\n\n /// @param _gasCost Gas cost for specific transaction\n\n function boostWithLoan(\n\n ExchangeData memory _exData,\n\n address[2] memory _cAddresses, // cCollAddress, cBorrowAddress\n\n uint256 _gasCost\n\n ) public payable burnGas(20) {\n\n uint maxBorrow = getMaxBorrow(_cAddresses[1], address(this));\n\n\n\n if (_exData.srcAmount <= maxBorrow) {\n\n boost(_exData, _cAddresses, _gasCost);\n\n } else {\n\n // 0x fee\n\n COMPOUND_SAVER_FLASH_LOAN.transfer(msg.value);\n\n\n\n uint loanAmount = (_exData.srcAmount - maxBorrow);\n\n bytes memory paramsData = abi.encode(packExchangeData(_exData), _cAddresses, _gasCost, false, address(this));\n\n\n\n givePermission(COMPOUND_SAVER_FLASH_LOAN);\n\n\n\n lendingPool.flashLoan(COMPOUND_SAVER_FLASH_LOAN, getUnderlyingAddr(_cAddresses[1]), loanAmount, paramsData);\n\n\n\n removePermission(COMPOUND_SAVER_FLASH_LOAN);\n\n\n\n logger.Log(address(this), msg.sender, \"CompoundFlashBoost\", abi.encode(loanAmount, _exData.srcAmount, _cAddresses[1]));\n\n }\n\n\n\n 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true, \"error\": null, \"results\": {\"detectors\": [{\"check\": \"tx-origin\", \"impact\": \"Medium\", \"confidence\": \"Medium\"}, {\"check\": \"name-reused\", \"impact\": \"High\", \"confidence\": \"High\"}, {\"check\": \"erc20-interface\", \"impact\": \"Medium\", \"confidence\": \"High\"}, {\"check\": \"arbitrary-send\", \"impact\": \"High\", \"confidence\": \"Medium\"}, {\"check\": \"unchecked-lowlevel\", \"impact\": \"Medium\", \"confidence\": \"Medium\"}, {\"check\": \"incorrect-equality\", \"impact\": \"Medium\", \"confidence\": \"High\"}, {\"check\": \"uninitialized-local\", \"impact\": \"Medium\", \"confidence\": \"Medium\"}, {\"check\": \"unchecked-transfer\", \"impact\": \"High\", \"confidence\": \"Medium\"}, {\"check\": \"unused-return\", \"impact\": \"Medium\", \"confidence\": \"Medium\"}, {\"check\": \"locked-ether\", \"impact\": \"Medium\", \"confidence\": 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0":{"kind":"number","value":679,"string":"679"},"address":{"kind":"string","value":"0xEffc394E44d68423447218daBefBB49F78bEc2BB"},"source_code":{"kind":"string","value":"pragma solidity 0.6.6;\npragma experimental ABIEncoderV2;\n\ncontract DSAuthEvents {\n\n event LogSetAuthority(address indexed authority);\n\n event LogSetOwner(address indexed owner);\n\n}\n\ncontract DSAuth is DSAuthEvents {\n\n DSAuthority public authority;\n\n address public owner;\n\n\n\n constructor() public {\n\n owner = msg.sender;\n\n emit LogSetOwner(msg.sender);\n\n }\n\n\n\n function setOwner(address owner_) public auth {\n\n owner = owner_;\n\n emit LogSetOwner(owner);\n\n }\n\n\n\n function setAuthority(DSAuthority authority_) public auth {\n\n authority = authority_;\n\n emit LogSetAuthority(address(authority));\n\n }\n\n\n\n modifier auth {\n\n require(isAuthorized(msg.sender, msg.sig));\n\n _;\n\n }\n\n\n\n function isAuthorized(address src, bytes4 sig) internal view returns (bool) {\n\n if (src == address(this)) {\n\n return true;\n\n } else if (src == owner) {\n\n return true;\n\n } else if (authority == DSAuthority(0)) {\n\n return false;\n\n } else {\n\n return authority.canCall(src, address(this), sig);\n\n }\n\n }\n\n}\n\nabstract contract DSAuthority {\n\n function canCall(address src, address dst, bytes4 sig) public virtual view returns (bool);\n\n}\n\nabstract contract DSGuard {\n\n function canCall(address src_, address dst_, bytes4 sig) public view virtual returns (bool);\n\n\n\n function permit(bytes32 src, bytes32 dst, bytes32 sig) public virtual;\n\n\n\n function forbid(bytes32 src, bytes32 dst, bytes32 sig) public virtual;\n\n\n\n function permit(address src, address dst, bytes32 sig) public virtual;\n\n\n\n function forbid(address src, address dst, bytes32 sig) public virtual;\n\n}\n\nabstract contract DSGuardFactory {\n\n function newGuard() public virtual returns (DSGuard guard);\n\n}\n\ncontract DSMath {\n\n function add(uint256 x, uint256 y) internal pure returns (uint256 z) {\n\n require((z = x + y) >= x);\n\n }\n\n\n\n function sub(uint256 x, uint256 y) internal pure returns (uint256 z) {\n\n require((z = x - y) <= x);\n\n }\n\n\n\n function mul(uint256 x, uint256 y) internal pure returns (uint256 z) {\n\n require(y == 0 || (z = x * y) / y == x);\n\n }\n\n\n\n function div(uint256 x, uint256 y) internal pure returns (uint256 z) {\n\n return x / y;\n\n }\n\n\n\n function min(uint256 x, uint256 y) internal pure returns (uint256 z) {\n\n return x <= y ? x : y;\n\n }\n\n\n\n function max(uint256 x, uint256 y) internal pure returns (uint256 z) {\n\n return x >= y ? x : y;\n\n }\n\n\n\n function imin(int256 x, int256 y) internal pure returns (int256 z) {\n\n return x <= y ? x : y;\n\n }\n\n\n\n function imax(int256 x, int256 y) internal pure returns (int256 z) {\n\n return x >= y ? x : y;\n\n }\n\n\n\n uint256 constant WAD = 10**18;\n\n uint256 constant RAY = 10**27;\n\n\n\n function wmul(uint256 x, uint256 y) internal pure returns (uint256 z) {\n\n z = add(mul(x, y), WAD / 2) / WAD;\n\n }\n\n\n\n function rmul(uint256 x, uint256 y) internal pure returns (uint256 z) {\n\n z = add(mul(x, y), RAY / 2) / RAY;\n\n }\n\n\n\n function wdiv(uint256 x, uint256 y) internal pure returns (uint256 z) {\n\n z = add(mul(x, WAD), y / 2) / y;\n\n }\n\n\n\n function rdiv(uint256 x, uint256 y) internal pure returns (uint256 z) {\n\n z = add(mul(x, RAY), y / 2) / y;\n\n }\n\n\n\n // This famous algorithm is called \"exponentiation by squaring\"\n\n // and calculates x^n with x as fixed-point and n as regular unsigned.\n\n //\n\n // It's O(log n), instead of O(n) for naive repeated multiplication.\n\n //\n\n // These facts are why it works:\n\n //\n\n // If n is even, then x^n = (x^2)^(n/2).\n\n // If n is odd, then x^n = x * x^(n-1),\n\n // and applying the equation for even x gives\n\n // x^n = x * (x^2)^((n-1) / 2).\n\n //\n\n // Also, EVM division is flooring and\n\n // floor[(n-1) / 2] = floor[n / 2].\n\n //\n\n function rpow(uint256 x, uint256 n) internal pure returns (uint256 z) {\n\n z = n % 2 != 0 ? x : RAY;\n\n\n\n for (n /= 2; n != 0; n /= 2) {\n\n x = rmul(x, x);\n\n\n\n if (n % 2 != 0) {\n\n z = rmul(z, x);\n\n }\n\n }\n\n }\n\n}\n\ncontract DSNote {\n\n event LogNote(\n\n bytes4 indexed sig,\n\n address indexed guy,\n\n bytes32 indexed foo,\n\n bytes32 indexed bar,\n\n uint256 wad,\n\n bytes fax\n\n ) anonymous;\n\n\n\n modifier note {\n\n bytes32 foo;\n\n bytes32 bar;\n\n\n\n assembly {\n\n foo := calldataload(4)\n\n bar := calldataload(36)\n\n }\n\n\n\n emit LogNote(msg.sig, msg.sender, foo, bar, msg.value, msg.data);\n\n\n\n _;\n\n }\n\n}\n\nabstract contract DSProxy is DSAuth, DSNote {\n\n DSProxyCache public cache; // global cache for contracts\n\n\n\n constructor(address _cacheAddr) public {\n\n require(setCache(_cacheAddr));\n\n }\n\n\n\n // solhint-disable-next-line no-empty-blocks\n\n receive() external payable {}\n\n\n\n // use the proxy to execute calldata _data on contract _code\n\n // function execute(bytes memory _code, bytes memory _data)\n\n // public\n\n // payable\n\n // virtual\n\n // returns (address target, bytes32 response);\n\n\n\n function execute(address _target, bytes memory _data)\n\n public\n\n payable\n\n virtual\n\n returns (bytes32 response);\n\n\n\n //set new cache\n\n function setCache(address _cacheAddr) public virtual payable returns (bool);\n\n}\n\ncontract DSProxyCache {\n\n mapping(bytes32 => address) cache;\n\n\n\n function read(bytes memory _code) public view returns (address) {\n\n bytes32 hash = keccak256(_code);\n\n return cache[hash];\n\n }\n\n\n\n function write(bytes memory _code) public returns (address target) {\n\n assembly {\n\n target := create(0, add(_code, 0x20), mload(_code))\n\n switch iszero(extcodesize(target))\n\n case 1 {\n\n // throw if contract failed to deploy\n\n revert(0, 0)\n\n }\n\n }\n\n bytes32 hash = keccak256(_code);\n\n cache[hash] = target;\n\n }\n\n}\n\nabstract contract DSProxyFactoryInterface {\n\n function build(address owner) public virtual returns (DSProxy proxy);\n\n}\n\ncontract Migrations {\n\n address public owner;\n\n uint public last_completed_migration;\n\n\n\n modifier restricted() {\n\n if (msg.sender == owner) _;\n\n }\n\n\n\n constructor() public {\n\n owner = msg.sender;\n\n }\n\n\n\n function setCompleted(uint completed) public restricted {\n\n last_completed_migration = completed;\n\n }\n\n\n\n function upgrade(address new_address) public restricted {\n\n Migrations upgraded = Migrations(new_address);\n\n upgraded.setCompleted(last_completed_migration);\n\n }\n\n}\n\ncontract AaveHelper is DSMath {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n address payable public constant WALLET_ADDR = 0x322d58b9E75a6918f7e7849AEe0fF09369977e08;\n\n address public constant DISCOUNT_ADDR = 0x1b14E8D511c9A4395425314f849bD737BAF8208F;\n\n\n\n uint public constant MANUAL_SERVICE_FEE = 400; // 0.25% Fee\n\n uint public constant AUTOMATIC_SERVICE_FEE = 333; // 0.3% Fee\n\n\n\n address public constant BOT_REGISTRY_ADDRESS = 0x637726f8b08a7ABE3aE3aCaB01A80E2d8ddeF77B;\n\n\n\n\taddress public constant ETH_ADDR = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n address public constant AAVE_LENDING_POOL_ADDRESSES = 0x24a42fD28C976A61Df5D00D0599C34c4f90748c8;\n\n uint public constant NINETY_NINE_PERCENT_WEI = 999900000000000000;\n\n uint16 public constant AAVE_REFERRAL_CODE = 64;\n\n\n\n /// @param _collateralAddress underlying token address\n\n /// @param _user users address\n\n\tfunction getMaxCollateral(address _collateralAddress, address _user) public view returns (uint256) {\n\n address lendingPoolAddressDataProvider = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPoolDataProvider();\n\n address lendingPoolCoreAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPoolCore();\n\n address priceOracleAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getPriceOracle();\n\n\n\n // fetch all needed data\n\n // using LTV as tokenLiquidationThreshold\n\n (,uint256 totalCollateralETH, uint256 totalBorrowsETH,,uint256 currentLiquidationThreshold,,,) = ILendingPool(lendingPoolAddressDataProvider).calculateUserGlobalData(_user);\n\n (,uint256 tokenLiquidationThreshold,,) = ILendingPool(lendingPoolCoreAddress).getReserveConfiguration(_collateralAddress);\n\n uint256 collateralPrice = IPriceOracleGetterAave(priceOracleAddress).getAssetPrice(_collateralAddress);\n\n uint256 userTokenBalance = ILendingPool(lendingPoolCoreAddress).getUserUnderlyingAssetBalance(_collateralAddress, _user);\n\n uint256 userTokenBalanceEth = wmul(userTokenBalance, collateralPrice);\n\n\n\n\t\t// if borrow is 0, return whole user balance\n\n if (totalBorrowsETH == 0) {\n\n \treturn userTokenBalance;\n\n }\n\n\n\n uint256 maxCollateralEth = div(sub(mul(currentLiquidationThreshold, totalCollateralETH), mul(totalBorrowsETH, 100)), currentLiquidationThreshold);\n\n\t\t/// @dev final amount can't be higher than users token balance\n\n maxCollateralEth = maxCollateralEth > userTokenBalanceEth ? userTokenBalanceEth : maxCollateralEth;\n\n\n\n // might happen due to wmul precision\n\n if (maxCollateralEth >= totalCollateralETH) {\n\n \treturn totalCollateralETH;\n\n }\n\n\n\n // get sum of all other reserves multiplied with their liquidation thresholds by reversing formula\n\n uint256 a = sub(wmul(currentLiquidationThreshold, totalCollateralETH), wmul(tokenLiquidationThreshold, userTokenBalanceEth));\n\n // add new collateral amount multiplied by its threshold, and then divide with new total collateral\n\n uint256 newLiquidationThreshold = wdiv(add(a, wmul(sub(userTokenBalanceEth, maxCollateralEth), tokenLiquidationThreshold)), sub(totalCollateralETH, maxCollateralEth));\n\n\n\n // if new threshold is lower than first one, calculate new max collateral with newLiquidationThreshold\n\n if (newLiquidationThreshold < currentLiquidationThreshold) {\n\n \tmaxCollateralEth = div(sub(mul(newLiquidationThreshold, totalCollateralETH), mul(totalBorrowsETH, 100)), newLiquidationThreshold);\n\n \tmaxCollateralEth = maxCollateralEth > userTokenBalanceEth ? userTokenBalanceEth : maxCollateralEth;\n\n }\n\n\n\n\n\n\t\treturn wmul(wdiv(maxCollateralEth, collateralPrice), NINETY_NINE_PERCENT_WEI);\n\n\t}\n\n\n\n\t/// @param _borrowAddress underlying token address\n\n\t/// @param _user users address\n\n\tfunction getMaxBorrow(address _borrowAddress, address _user) public view returns (uint256) {\n\n\t\taddress lendingPoolAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n\t\taddress priceOracleAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getPriceOracle();\n\n\n\n\t\t(,,,,uint256 availableBorrowsETH,,,) = ILendingPool(lendingPoolAddress).getUserAccountData(_user);\n\n\n\n\t\tuint256 borrowPrice = IPriceOracleGetterAave(priceOracleAddress).getAssetPrice(_borrowAddress);\n\n\n\n\t\treturn wmul(wdiv(availableBorrowsETH, borrowPrice), NINETY_NINE_PERCENT_WEI);\n\n\t}\n\n\n\n /// @notice Calculates the fee amount\n\n /// @param _amount Amount that is converted\n\n /// @param _user Actuall user addr not DSProxy\n\n /// @param _gasCost Ether amount of gas we are spending for tx\n\n /// @param _tokenAddr token addr. of token we are getting for the fee\n\n /// @return feeAmount The amount we took for the fee\n\n function getFee(uint _amount, address _user, uint _gasCost, address _tokenAddr) internal returns (uint feeAmount) {\n\n address priceOracleAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getPriceOracle();\n\n\n\n uint fee = MANUAL_SERVICE_FEE;\n\n\n\n if (BotRegistry(BOT_REGISTRY_ADDRESS).botList(tx.origin)) {\n\n fee = AUTOMATIC_SERVICE_FEE;\n\n }\n\n\n\n if (Discount(DISCOUNT_ADDR).isCustomFeeSet(_user)) {\n\n fee = Discount(DISCOUNT_ADDR).getCustomServiceFee(_user);\n\n }\n\n\n\n feeAmount = (fee == 0) ? 0 : (_amount / fee);\n\n\n\n if (_gasCost != 0) {\n\n uint256 price = IPriceOracleGetterAave(priceOracleAddress).getAssetPrice(_tokenAddr);\n\n _gasCost = wmul(_gasCost, price);\n\n\n\n feeAmount = add(feeAmount, _gasCost);\n\n }\n\n\n\n // fee can't go over 20% of the whole amount\n\n if (feeAmount > (_amount / 5)) {\n\n feeAmount = _amount / 5;\n\n }\n\n\n\n if (_tokenAddr == ETH_ADDR) {\n\n WALLET_ADDR.transfer(feeAmount);\n\n } else {\n\n ERC20(_tokenAddr).safeTransfer(WALLET_ADDR, feeAmount);\n\n }\n\n }\n\n\n\n /// @notice Returns the owner of the DSProxy that called the contract\n\n function getUserAddress() internal view returns (address) {\n\n DSProxy proxy = DSProxy(payable(address(this)));\n\n\n\n return proxy.owner();\n\n }\n\n\n\n /// @notice Approves token contract to pull underlying tokens from the DSProxy\n\n /// @param _tokenAddr Token we are trying to approve\n\n /// @param _caller Address which will gain the approval\n\n function approveToken(address _tokenAddr, address _caller) internal {\n\n if (_tokenAddr != ETH_ADDR) {\n\n ERC20(_tokenAddr).safeApprove(_caller, uint256(-1));\n\n }\n\n }\n\n\n\n /// @notice Send specific amount from contract to specific user\n\n /// @param _token Token we are trying to send\n\n /// @param _user User that should receive funds\n\n /// @param _amount Amount that should be sent\n\n function sendContractBalance(address _token, address _user, uint _amount) public {\n\n if (_token == ETH_ADDR) {\n\n payable(_user).transfer(_amount);\n\n } else {\n\n ERC20(_token).safeTransfer(_user, _amount);\n\n }\n\n }\n\n\n\n function sendFullContractBalance(address _token, address _user) public {\n\n if (_token == ETH_ADDR) {\n\n sendContractBalance(_token, _user, address(this).balance);\n\n } else {\n\n sendContractBalance(_token, _user, ERC20(_token).balanceOf(address(this)));\n\n }\n\n }\n\n}\n\ncontract AaveSafetyRatio is AaveHelper {\n\n\n\n function getSafetyRatio(address _user) public view returns(uint256) {\n\n address lendingPoolAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n (,,uint256 totalBorrowsETH,,uint256 availableBorrowsETH,,,) = ILendingPool(lendingPoolAddress).getUserAccountData(_user);\n\n\n\n return wdiv(add(totalBorrowsETH, availableBorrowsETH), totalBorrowsETH);\n\n }\n\n}\n\ncontract AdminAuth {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n address public owner;\n\n address public admin;\n\n\n\n modifier onlyOwner() {\n\n require(owner == msg.sender);\n\n _;\n\n }\n\n\n\n constructor() public {\n\n owner = msg.sender;\n\n }\n\n\n\n /// @notice Admin is set by owner first time, after that admin is super role and has permission to change owner\n\n /// @param _admin Address of multisig that becomes admin\n\n function setAdminByOwner(address _admin) public {\n\n require(msg.sender == owner);\n\n require(admin == address(0));\n\n\n\n admin = _admin;\n\n }\n\n\n\n /// @notice Admin is able to set new admin\n\n /// @param _admin Address of multisig that becomes new admin\n\n function setAdminByAdmin(address _admin) public {\n\n require(msg.sender == admin);\n\n\n\n admin = _admin;\n\n }\n\n\n\n /// @notice Admin is able to change owner\n\n /// @param _owner Address of new owner\n\n function setOwnerByAdmin(address _owner) public {\n\n require(msg.sender == admin);\n\n\n\n owner = _owner;\n\n }\n\n\n\n /// @notice Destroy the contract\n\n function kill() public onlyOwner {\n\n selfdestruct(payable(owner));\n\n }\n\n\n\n /// @notice withdraw stuck funds\n\n function withdrawStuckFunds(address _token, uint _amount) public onlyOwner {\n\n if (_token == 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE) {\n\n payable(owner).transfer(_amount);\n\n } else {\n\n ERC20(_token).safeTransfer(owner, _amount);\n\n }\n\n }\n\n}\n\ncontract Auth is AdminAuth {\n\n\n\n\tbool public ALL_AUTHORIZED = false;\n\n\n\n\tmapping(address => bool) public authorized;\n\n\n\n\tmodifier onlyAuthorized() {\n\n require(ALL_AUTHORIZED || authorized[msg.sender]);\n\n _;\n\n }\n\n\n\n\tconstructor() public {\n\n\t\tauthorized[msg.sender] = true;\n\n\t}\n\n\n\n\tfunction setAuthorized(address _user, bool _approved) public onlyOwner {\n\n\t\tauthorized[_user] = _approved;\n\n\t}\n\n\n\n\tfunction setAllAuthorized(bool _authorized) public onlyOwner {\n\n\t\tALL_AUTHORIZED = _authorized;\n\n\t}\n\n}\n\ncontract ProxyPermission {\n\n address public constant FACTORY_ADDRESS = 0x5a15566417e6C1c9546523066500bDDBc53F88C7;\n\n\n\n /// @notice Called in the context of DSProxy to authorize an address\n\n /// @param _contractAddr Address which will be authorized\n\n function givePermission(address _contractAddr) public {\n\n address currAuthority = address(DSAuth(address(this)).authority());\n\n DSGuard guard = DSGuard(currAuthority);\n\n\n\n if (currAuthority == address(0)) {\n\n guard = DSGuardFactory(FACTORY_ADDRESS).newGuard();\n\n DSAuth(address(this)).setAuthority(DSAuthority(address(guard)));\n\n }\n\n\n\n guard.permit(_contractAddr, address(this), bytes4(keccak256(\"execute(address,bytes)\")));\n\n }\n\n\n\n /// @notice Called in the context of DSProxy to remove authority of an address\n\n /// @param _contractAddr Auth address which will be removed from authority list\n\n function removePermission(address _contractAddr) public {\n\n address currAuthority = address(DSAuth(address(this)).authority());\n\n \n\n // if there is no authority, that means that contract doesn't have permission\n\n if (currAuthority == address(0)) {\n\n return;\n\n }\n\n\n\n DSGuard guard = DSGuard(currAuthority);\n\n guard.forbid(_contractAddr, address(this), bytes4(keccak256(\"execute(address,bytes)\")));\n\n }\n\n}\n\ncontract CompoundMonitorProxy is AdminAuth {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n uint public CHANGE_PERIOD;\n\n address public monitor;\n\n address public newMonitor;\n\n address public lastMonitor;\n\n uint public changeRequestedTimestamp;\n\n\n\n mapping(address => bool) public allowed;\n\n\n\n event MonitorChangeInitiated(address oldMonitor, address newMonitor);\n\n event MonitorChangeCanceled();\n\n event MonitorChangeFinished(address monitor);\n\n event MonitorChangeReverted(address monitor);\n\n\n\n // if someone who is allowed become malicious, owner can't be changed\n\n modifier onlyAllowed() {\n\n require(allowed[msg.sender] || msg.sender == owner);\n\n _;\n\n }\n\n\n\n modifier onlyMonitor() {\n\n require (msg.sender == monitor);\n\n _;\n\n }\n\n\n\n constructor(uint _changePeriod) public {\n\n CHANGE_PERIOD = _changePeriod * 1 days;\n\n }\n\n\n\n /// @notice Only monitor contract is able to call execute on users proxy\n\n /// @param _owner Address of cdp owner (users DSProxy address)\n\n /// @param _compoundSaverProxy Address of CompoundSaverProxy\n\n /// @param _data Data to send to CompoundSaverProxy\n\n function callExecute(address _owner, address _compoundSaverProxy, bytes memory _data) public payable onlyMonitor {\n\n // execute reverts if calling specific method fails\n\n DSProxyInterface(_owner).execute{value: msg.value}(_compoundSaverProxy, _data);\n\n\n\n // return if anything left\n\n if (address(this).balance > 0) {\n\n msg.sender.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n /// @notice Allowed users are able to set Monitor contract without any waiting period first time\n\n /// @param _monitor Address of Monitor contract\n\n function setMonitor(address _monitor) public onlyAllowed {\n\n require(monitor == address(0));\n\n monitor = _monitor;\n\n }\n\n\n\n /// @notice Allowed users are able to start procedure for changing monitor\n\n /// @dev after CHANGE_PERIOD needs to call confirmNewMonitor to actually make a change\n\n /// @param _newMonitor address of new monitor\n\n function changeMonitor(address _newMonitor) public onlyAllowed {\n\n require(changeRequestedTimestamp == 0);\n\n\n\n changeRequestedTimestamp = now;\n\n lastMonitor = monitor;\n\n newMonitor = _newMonitor;\n\n\n\n emit MonitorChangeInitiated(lastMonitor, newMonitor);\n\n }\n\n\n\n /// @notice At any point allowed users are able to cancel monitor change\n\n function cancelMonitorChange() public onlyAllowed {\n\n require(changeRequestedTimestamp > 0);\n\n\n\n changeRequestedTimestamp = 0;\n\n newMonitor = address(0);\n\n\n\n emit MonitorChangeCanceled();\n\n }\n\n\n\n /// @notice Anyone is able to confirm new monitor after CHANGE_PERIOD if process is started\n\n function confirmNewMonitor() public onlyAllowed {\n\n require((changeRequestedTimestamp + CHANGE_PERIOD) < now);\n\n require(changeRequestedTimestamp != 0);\n\n require(newMonitor != address(0));\n\n\n\n monitor = newMonitor;\n\n newMonitor = address(0);\n\n changeRequestedTimestamp = 0;\n\n\n\n emit MonitorChangeFinished(monitor);\n\n }\n\n\n\n /// @notice Its possible to revert monitor to last used monitor\n\n function revertMonitor() public onlyAllowed {\n\n require(lastMonitor != address(0));\n\n\n\n monitor = lastMonitor;\n\n\n\n emit MonitorChangeReverted(monitor);\n\n }\n\n\n\n\n\n /// @notice Allowed users are able to add new allowed user\n\n /// @param _user Address of user that will be allowed\n\n function addAllowed(address _user) public onlyAllowed {\n\n allowed[_user] = true;\n\n }\n\n\n\n /// @notice Allowed users are able to remove allowed user\n\n /// @dev owner is always allowed even if someone tries to remove it from allowed mapping\n\n /// @param _user Address of allowed user\n\n function removeAllowed(address _user) public onlyAllowed {\n\n allowed[_user] = false;\n\n }\n\n\n\n function setChangePeriod(uint _periodInDays) public onlyAllowed {\n\n require(_periodInDays * 1 days > CHANGE_PERIOD);\n\n\n\n CHANGE_PERIOD = _periodInDays * 1 days;\n\n }\n\n\n\n /// @notice In case something is left in contract, owner is able to withdraw it\n\n /// @param _token address of token to withdraw balance\n\n function withdrawToken(address _token) public onlyOwner {\n\n uint balance = ERC20(_token).balanceOf(address(this));\n\n ERC20(_token).safeTransfer(msg.sender, balance);\n\n }\n\n\n\n /// @notice In case something is left in contract, owner is able to withdraw it\n\n function withdrawEth() public onlyOwner {\n\n uint balance = address(this).balance;\n\n msg.sender.transfer(balance);\n\n }\n\n}\n\ncontract CompoundSubscriptions is AdminAuth {\n\n\n\n struct CompoundHolder {\n\n address user;\n\n uint128 minRatio;\n\n uint128 maxRatio;\n\n uint128 optimalRatioBoost;\n\n uint128 optimalRatioRepay;\n\n bool boostEnabled;\n\n }\n\n\n\n struct SubPosition {\n\n uint arrPos;\n\n bool subscribed;\n\n }\n\n\n\n CompoundHolder[] public subscribers;\n\n mapping (address => SubPosition) public subscribersPos;\n\n\n\n uint public changeIndex;\n\n\n\n event Subscribed(address indexed user);\n\n event Unsubscribed(address indexed user);\n\n event Updated(address indexed user);\n\n event ParamUpdates(address indexed user, uint128, uint128, uint128, uint128, bool);\n\n\n\n /// @dev Called by the DSProxy contract which owns the Compound position\n\n /// @notice Adds the users Compound poistion in the list of subscriptions so it can be monitored\n\n /// @param _minRatio Minimum ratio below which repay is triggered\n\n /// @param _maxRatio Maximum ratio after which boost is triggered\n\n /// @param _optimalBoost Ratio amount which boost should target\n\n /// @param _optimalRepay Ratio amount which repay should target\n\n /// @param _boostEnabled Boolean determing if boost is enabled\n\n function subscribe(uint128 _minRatio, uint128 _maxRatio, uint128 _optimalBoost, uint128 _optimalRepay, bool _boostEnabled) external {\n\n\n\n // if boost is not enabled, set max ratio to max uint\n\n uint128 localMaxRatio = _boostEnabled ? _maxRatio : uint128(-1);\n\n require(checkParams(_minRatio, localMaxRatio), \"Must be correct params\");\n\n\n\n SubPosition storage subInfo = subscribersPos[msg.sender];\n\n\n\n CompoundHolder memory subscription = CompoundHolder({\n\n minRatio: _minRatio,\n\n maxRatio: localMaxRatio,\n\n optimalRatioBoost: _optimalBoost,\n\n optimalRatioRepay: _optimalRepay,\n\n user: msg.sender,\n\n boostEnabled: _boostEnabled\n\n });\n\n\n\n changeIndex++;\n\n\n\n if (subInfo.subscribed) {\n\n subscribers[subInfo.arrPos] = subscription;\n\n\n\n emit Updated(msg.sender);\n\n emit ParamUpdates(msg.sender, _minRatio, localMaxRatio, _optimalBoost, _optimalRepay, _boostEnabled);\n\n } else {\n\n subscribers.push(subscription);\n\n\n\n subInfo.arrPos = subscribers.length - 1;\n\n subInfo.subscribed = true;\n\n\n\n emit Subscribed(msg.sender);\n\n }\n\n }\n\n\n\n /// @notice Called by the users DSProxy\n\n /// @dev Owner who subscribed cancels his subscription\n\n function unsubscribe() external {\n\n _unsubscribe(msg.sender);\n\n }\n\n\n\n /// @dev Checks limit if minRatio is bigger than max\n\n /// @param _minRatio Minimum ratio, bellow which repay can be triggered\n\n /// @param _maxRatio Maximum ratio, over which boost can be triggered\n\n /// @return Returns bool if the params are correct\n\n function checkParams(uint128 _minRatio, uint128 _maxRatio) internal pure returns (bool) {\n\n\n\n if (_minRatio > _maxRatio) {\n\n return false;\n\n }\n\n\n\n return true;\n\n }\n\n\n\n /// @dev Internal method to remove a subscriber from the list\n\n /// @param _user The actual address that owns the Compound position\n\n function _unsubscribe(address _user) internal {\n\n require(subscribers.length > 0, \"Must have subscribers in the list\");\n\n\n\n SubPosition storage subInfo = subscribersPos[_user];\n\n\n\n require(subInfo.subscribed, \"Must first be subscribed\");\n\n\n\n address lastOwner = subscribers[subscribers.length - 1].user;\n\n\n\n SubPosition storage subInfo2 = subscribersPos[lastOwner];\n\n subInfo2.arrPos = subInfo.arrPos;\n\n\n\n subscribers[subInfo.arrPos] = subscribers[subscribers.length - 1];\n\n subscribers.pop(); // remove last element and reduce arr length\n\n\n\n changeIndex++;\n\n subInfo.subscribed = false;\n\n subInfo.arrPos = 0;\n\n\n\n emit Unsubscribed(msg.sender);\n\n }\n\n\n\n /// @dev Checks if the user is subscribed\n\n /// @param _user The actual address that owns the Compound position\n\n /// @return If the user is subscribed\n\n function isSubscribed(address _user) public view returns (bool) {\n\n SubPosition storage subInfo = subscribersPos[_user];\n\n\n\n return subInfo.subscribed;\n\n }\n\n\n\n /// @dev Returns subscribtion information about a user\n\n /// @param _user The actual address that owns the Compound position\n\n /// @return Subscription information about the user if exists\n\n function getHolder(address _user) public view returns (CompoundHolder memory) {\n\n SubPosition storage subInfo = subscribersPos[_user];\n\n\n\n return subscribers[subInfo.arrPos];\n\n }\n\n\n\n /// @notice Helper method to return all the subscribed CDPs\n\n /// @return List of all subscribers\n\n function getSubscribers() public view returns (CompoundHolder[] memory) {\n\n return subscribers;\n\n }\n\n\n\n /// @notice Helper method for the frontend, returns all the subscribed CDPs paginated\n\n /// @param _page What page of subscribers you want\n\n /// @param _perPage Number of entries per page\n\n /// @return List of all subscribers for that page\n\n function getSubscribersByPage(uint _page, uint _perPage) public view returns (CompoundHolder[] memory) {\n\n CompoundHolder[] memory holders = new CompoundHolder[](_perPage);\n\n\n\n uint start = _page * _perPage;\n\n uint end = start + _perPage;\n\n\n\n end = (end > holders.length) ? holders.length : end;\n\n\n\n uint count = 0;\n\n for (uint i = start; i < end; i++) {\n\n holders[count] = subscribers[i];\n\n count++;\n\n }\n\n\n\n return holders;\n\n }\n\n\n\n ////////////// ADMIN METHODS ///////////////////\n\n\n\n /// @notice Admin function to unsubscribe a CDP\n\n /// @param _user The actual address that owns the Compound position\n\n function unsubscribeByAdmin(address _user) public onlyOwner {\n\n SubPosition storage subInfo = subscribersPos[_user];\n\n\n\n if (subInfo.subscribed) {\n\n _unsubscribe(_user);\n\n }\n\n }\n\n}\n\ncontract CompoundSubscriptionsProxy is ProxyPermission {\n\n\n\n address public constant COMPOUND_SUBSCRIPTION_ADDRESS = 0x52015EFFD577E08f498a0CCc11905925D58D6207;\n\n address public constant COMPOUND_MONITOR_PROXY = 0xB1cF8DE8e791E4Ed1Bd86c03E2fc1f14389Cb10a;\n\n\n\n /// @notice Calls subscription contract and creates a DSGuard if non existent\n\n /// @param _minRatio Minimum ratio below which repay is triggered\n\n /// @param _maxRatio Maximum ratio after which boost is triggered\n\n /// @param _optimalRatioBoost Ratio amount which boost should target\n\n /// @param _optimalRatioRepay Ratio amount which repay should target\n\n /// @param _boostEnabled Boolean determing if boost is enabled\n\n function subscribe(\n\n uint128 _minRatio,\n\n uint128 _maxRatio,\n\n uint128 _optimalRatioBoost,\n\n uint128 _optimalRatioRepay,\n\n bool _boostEnabled\n\n ) public {\n\n givePermission(COMPOUND_MONITOR_PROXY);\n\n ICompoundSubscription(COMPOUND_SUBSCRIPTION_ADDRESS).subscribe(\n\n _minRatio, _maxRatio, _optimalRatioBoost, _optimalRatioRepay, _boostEnabled);\n\n }\n\n\n\n /// @notice Calls subscription contract and updated existing parameters\n\n /// @dev If subscription is non existent this will create one\n\n /// @param _minRatio Minimum ratio below which repay is triggered\n\n /// @param _maxRatio Maximum ratio after which boost is triggered\n\n /// @param _optimalRatioBoost Ratio amount which boost should target\n\n /// @param _optimalRatioRepay Ratio amount which repay should target\n\n /// @param _boostEnabled Boolean determing if boost is enabled\n\n function update(\n\n uint128 _minRatio,\n\n uint128 _maxRatio,\n\n uint128 _optimalRatioBoost,\n\n uint128 _optimalRatioRepay,\n\n bool _boostEnabled\n\n ) public {\n\n ICompoundSubscription(COMPOUND_SUBSCRIPTION_ADDRESS).subscribe(_minRatio, _maxRatio, _optimalRatioBoost, _optimalRatioRepay, _boostEnabled);\n\n }\n\n\n\n /// @notice Calls the subscription contract to unsubscribe the caller\n\n function unsubscribe() public {\n\n removePermission(COMPOUND_MONITOR_PROXY);\n\n ICompoundSubscription(COMPOUND_SUBSCRIPTION_ADDRESS).unsubscribe();\n\n }\n\n}\n\ncontract CompoundCreateTaker is ProxyPermission {\n\n using SafeERC20 for ERC20;\n\n\n\n address public constant ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n ILendingPool public constant lendingPool = ILendingPool(0x398eC7346DcD622eDc5ae82352F02bE94C62d119);\n\n\n\n // solhint-disable-next-line const-name-snakecase\n\n DefisaverLogger public constant logger = DefisaverLogger(0x5c55B921f590a89C1Ebe84dF170E655a82b62126);\n\n\n\n struct CreateInfo {\n\n address cCollAddress;\n\n address cBorrowAddress;\n\n uint depositAmount;\n\n }\n\n\n\n /// @notice Main function which will take a FL and open a leverage position\n\n /// @dev Call through DSProxy, if _exchangeData.destAddr is a token approve DSProxy\n\n /// @param _createInfo [cCollAddress, cBorrowAddress, depositAmount]\n\n /// @param _exchangeData Exchange data struct\n\n function openLeveragedLoan(\n\n CreateInfo memory _createInfo,\n\n SaverExchangeCore.ExchangeData memory _exchangeData,\n\n address payable _compReceiver\n\n ) public payable {\n\n uint loanAmount = _exchangeData.srcAmount;\n\n\n\n // Pull tokens from user\n\n if (_exchangeData.destAddr != ETH_ADDRESS) {\n\n ERC20(_exchangeData.destAddr).safeTransferFrom(msg.sender, address(this), _createInfo.depositAmount);\n\n } else {\n\n require(msg.value >= _createInfo.depositAmount, \"Must send correct amount of eth\");\n\n }\n\n\n\n // Send tokens to FL receiver\n\n sendDeposit(_compReceiver, _exchangeData.destAddr);\n\n\n\n // Pack the struct data\n\n (uint[4] memory numData, address[6] memory cAddresses, bytes memory callData)\n\n = _packData(_createInfo, _exchangeData);\n\n bytes memory paramsData = abi.encode(numData, cAddresses, callData, address(this));\n\n\n\n givePermission(_compReceiver);\n\n\n\n lendingPool.flashLoan(_compReceiver, _exchangeData.srcAddr, loanAmount, paramsData);\n\n\n\n removePermission(_compReceiver);\n\n\n\n logger.Log(address(this), msg.sender, \"CompoundLeveragedLoan\",\n\n abi.encode(_exchangeData.srcAddr, _exchangeData.destAddr, _exchangeData.srcAmount, _exchangeData.destAmount));\n\n }\n\n\n\n function sendDeposit(address payable _compoundReceiver, address _token) internal {\n\n if (_token != ETH_ADDRESS) {\n\n ERC20(_token).safeTransfer(_compoundReceiver, ERC20(_token).balanceOf(address(this)));\n\n }\n\n\n\n _compoundReceiver.transfer(address(this).balance);\n\n }\n\n\n\n function _packData(\n\n CreateInfo memory _createInfo,\n\n SaverExchangeCore.ExchangeData memory exchangeData\n\n ) internal pure returns (uint[4] memory numData, address[6] memory cAddresses, bytes memory callData) {\n\n\n\n numData = [\n\n exchangeData.srcAmount,\n\n exchangeData.destAmount,\n\n exchangeData.minPrice,\n\n exchangeData.price0x\n\n ];\n\n\n\n cAddresses = [\n\n _createInfo.cCollAddress,\n\n _createInfo.cBorrowAddress,\n\n exchangeData.srcAddr,\n\n exchangeData.destAddr,\n\n exchangeData.exchangeAddr,\n\n exchangeData.wrapper\n\n ];\n\n\n\n callData = exchangeData.callData;\n\n }\n\n}\n\ncontract CarefulMath {\n\n\n\n /**\n\n * @dev Possible error codes that we can return\n\n */\n\n enum MathError {\n\n NO_ERROR,\n\n DIVISION_BY_ZERO,\n\n INTEGER_OVERFLOW,\n\n INTEGER_UNDERFLOW\n\n }\n\n\n\n /**\n\n * @dev Multiplies two numbers, returns an error on overflow.\n\n */\n\n function mulUInt(uint a, uint b) internal pure returns (MathError, uint) {\n\n if (a == 0) {\n\n return (MathError.NO_ERROR, 0);\n\n }\n\n\n\n uint c = a * b;\n\n\n\n if (c / a != b) {\n\n return (MathError.INTEGER_OVERFLOW, 0);\n\n } else {\n\n return (MathError.NO_ERROR, c);\n\n }\n\n }\n\n\n\n /**\n\n * @dev Integer division of two numbers, truncating the quotient.\n\n */\n\n function divUInt(uint a, uint b) internal pure returns (MathError, uint) {\n\n if (b == 0) {\n\n return (MathError.DIVISION_BY_ZERO, 0);\n\n }\n\n\n\n return (MathError.NO_ERROR, a / b);\n\n }\n\n\n\n /**\n\n * @dev Subtracts two numbers, returns an error on overflow (i.e. if subtrahend is greater than minuend).\n\n */\n\n function subUInt(uint a, uint b) internal pure returns (MathError, uint) {\n\n if (b <= a) {\n\n return (MathError.NO_ERROR, a - b);\n\n } else {\n\n return (MathError.INTEGER_UNDERFLOW, 0);\n\n }\n\n }\n\n\n\n /**\n\n * @dev Adds two numbers, returns an error on overflow.\n\n */\n\n function addUInt(uint a, uint b) internal pure returns (MathError, uint) {\n\n uint c = a + b;\n\n\n\n if (c >= a) {\n\n return (MathError.NO_ERROR, c);\n\n } else {\n\n return (MathError.INTEGER_OVERFLOW, 0);\n\n }\n\n }\n\n\n\n /**\n\n * @dev add a and b and then subtract c\n\n */\n\n function addThenSubUInt(uint a, uint b, uint c) internal pure returns (MathError, uint) {\n\n (MathError err0, uint sum) = addUInt(a, b);\n\n\n\n if (err0 != MathError.NO_ERROR) {\n\n return (err0, 0);\n\n }\n\n\n\n return subUInt(sum, c);\n\n }\n\n}\n\ncontract Exponential is CarefulMath {\n\n uint constant expScale = 1e18;\n\n uint constant halfExpScale = expScale/2;\n\n uint constant mantissaOne = expScale;\n\n\n\n struct Exp {\n\n uint mantissa;\n\n }\n\n\n\n /**\n\n * @dev Creates an exponential from numerator and denominator values.\n\n * Note: Returns an error if (`num` * 10e18) > MAX_INT,\n\n * or if `denom` is zero.\n\n */\n\n function getExp(uint num, uint denom) pure internal returns (MathError, Exp memory) {\n\n (MathError err0, uint scaledNumerator) = mulUInt(num, expScale);\n\n if (err0 != MathError.NO_ERROR) {\n\n return (err0, Exp({mantissa: 0}));\n\n }\n\n\n\n (MathError err1, uint rational) = divUInt(scaledNumerator, denom);\n\n if (err1 != MathError.NO_ERROR) {\n\n return (err1, Exp({mantissa: 0}));\n\n }\n\n\n\n return (MathError.NO_ERROR, Exp({mantissa: rational}));\n\n }\n\n\n\n /**\n\n * @dev Adds two exponentials, returning a new exponential.\n\n */\n\n function addExp(Exp memory a, Exp memory b) pure internal returns (MathError, Exp memory) {\n\n (MathError error, uint result) = addUInt(a.mantissa, b.mantissa);\n\n\n\n return (error, Exp({mantissa: result}));\n\n }\n\n\n\n /**\n\n * @dev Subtracts two exponentials, returning a new exponential.\n\n */\n\n function subExp(Exp memory a, Exp memory b) pure internal returns (MathError, Exp memory) {\n\n (MathError error, uint result) = subUInt(a.mantissa, b.mantissa);\n\n\n\n return (error, Exp({mantissa: result}));\n\n }\n\n\n\n /**\n\n * @dev Multiply an Exp by a scalar, returning a new Exp.\n\n */\n\n function mulScalar(Exp memory a, uint scalar) pure internal returns (MathError, Exp memory) {\n\n (MathError err0, uint scaledMantissa) = mulUInt(a.mantissa, scalar);\n\n if (err0 != MathError.NO_ERROR) {\n\n return (err0, Exp({mantissa: 0}));\n\n }\n\n\n\n return (MathError.NO_ERROR, Exp({mantissa: scaledMantissa}));\n\n }\n\n\n\n /**\n\n * @dev Multiply an Exp by a scalar, then truncate to return an unsigned integer.\n\n */\n\n function mulScalarTruncate(Exp memory a, uint scalar) pure internal returns (MathError, uint) {\n\n (MathError err, Exp memory product) = mulScalar(a, scalar);\n\n if (err != MathError.NO_ERROR) {\n\n return (err, 0);\n\n }\n\n\n\n return (MathError.NO_ERROR, truncate(product));\n\n }\n\n\n\n /**\n\n * @dev Multiply an Exp by a scalar, truncate, then add an to an unsigned integer, returning an unsigned integer.\n\n */\n\n function mulScalarTruncateAddUInt(Exp memory a, uint scalar, uint addend) pure internal returns (MathError, uint) {\n\n (MathError err, Exp memory product) = mulScalar(a, scalar);\n\n if (err != MathError.NO_ERROR) {\n\n return (err, 0);\n\n }\n\n\n\n return addUInt(truncate(product), addend);\n\n }\n\n\n\n /**\n\n * @dev Divide an Exp by a scalar, returning a new Exp.\n\n */\n\n function divScalar(Exp memory a, uint scalar) pure internal returns (MathError, Exp memory) {\n\n (MathError err0, uint descaledMantissa) = divUInt(a.mantissa, scalar);\n\n if (err0 != MathError.NO_ERROR) {\n\n return (err0, Exp({mantissa: 0}));\n\n }\n\n\n\n return (MathError.NO_ERROR, Exp({mantissa: descaledMantissa}));\n\n }\n\n\n\n /**\n\n * @dev Divide a scalar by an Exp, returning a new Exp.\n\n */\n\n function divScalarByExp(uint scalar, Exp memory divisor) pure internal returns (MathError, Exp memory) {\n\n /*\n\n We are doing this as:\n\n getExp(mulUInt(expScale, scalar), divisor.mantissa)\n\n\n\n How it works:\n\n Exp = a / b;\n\n Scalar = s;\n\n `s / (a / b)` = `b * s / a` and since for an Exp `a = mantissa, b = expScale`\n\n */\n\n (MathError err0, uint numerator) = mulUInt(expScale, scalar);\n\n if (err0 != MathError.NO_ERROR) {\n\n return (err0, Exp({mantissa: 0}));\n\n }\n\n return getExp(numerator, divisor.mantissa);\n\n }\n\n\n\n /**\n\n * @dev Divide a scalar by an Exp, then truncate to return an unsigned integer.\n\n */\n\n function divScalarByExpTruncate(uint scalar, Exp memory divisor) pure internal returns (MathError, uint) {\n\n (MathError err, Exp memory fraction) = divScalarByExp(scalar, divisor);\n\n if (err != MathError.NO_ERROR) {\n\n return (err, 0);\n\n }\n\n\n\n return (MathError.NO_ERROR, truncate(fraction));\n\n }\n\n\n\n /**\n\n * @dev Multiplies two exponentials, returning a new exponential.\n\n */\n\n function mulExp(Exp memory a, Exp memory b) pure internal returns (MathError, Exp memory) {\n\n\n\n (MathError err0, uint doubleScaledProduct) = mulUInt(a.mantissa, b.mantissa);\n\n if (err0 != MathError.NO_ERROR) {\n\n return (err0, Exp({mantissa: 0}));\n\n }\n\n\n\n // We add half the scale before dividing so that we get rounding instead of truncation.\n\n // See \"Listing 6\" and text above it at https://accu.org/index.php/journals/1717\n\n // Without this change, a result like 6.6...e-19 will be truncated to 0 instead of being rounded to 1e-18.\n\n (MathError err1, uint doubleScaledProductWithHalfScale) = addUInt(halfExpScale, doubleScaledProduct);\n\n if (err1 != MathError.NO_ERROR) {\n\n return (err1, Exp({mantissa: 0}));\n\n }\n\n\n\n (MathError err2, uint product) = divUInt(doubleScaledProductWithHalfScale, expScale);\n\n // The only error `div` can return is MathError.DIVISION_BY_ZERO but we control `expScale` and it is not zero.\n\n assert(err2 == MathError.NO_ERROR);\n\n\n\n return (MathError.NO_ERROR, Exp({mantissa: product}));\n\n }\n\n\n\n /**\n\n * @dev Multiplies two exponentials given their mantissas, returning a new exponential.\n\n */\n\n function mulExp(uint a, uint b) pure internal returns (MathError, Exp memory) {\n\n return mulExp(Exp({mantissa: a}), Exp({mantissa: b}));\n\n }\n\n\n\n /**\n\n * @dev Multiplies three exponentials, returning a new exponential.\n\n */\n\n function mulExp3(Exp memory a, Exp memory b, Exp memory c) pure internal returns (MathError, Exp memory) {\n\n (MathError err, Exp memory ab) = mulExp(a, b);\n\n if (err != MathError.NO_ERROR) {\n\n return (err, ab);\n\n }\n\n return mulExp(ab, c);\n\n }\n\n\n\n /**\n\n * @dev Divides two exponentials, returning a new exponential.\n\n * (a/scale) / (b/scale) = (a/scale) * (scale/b) = a/b,\n\n * which we can scale as an Exp by calling getExp(a.mantissa, b.mantissa)\n\n */\n\n function divExp(Exp memory a, Exp memory b) pure internal returns (MathError, Exp memory) {\n\n return getExp(a.mantissa, b.mantissa);\n\n }\n\n\n\n /**\n\n * @dev Truncates the given exp to a whole number value.\n\n * For example, truncate(Exp{mantissa: 15 * expScale}) = 15\n\n */\n\n function truncate(Exp memory exp) pure internal returns (uint) {\n\n // Note: We are not using careful math here as we're performing a division that cannot fail\n\n return exp.mantissa / expScale;\n\n }\n\n\n\n /**\n\n * @dev Checks if first Exp is less than second Exp.\n\n */\n\n function lessThanExp(Exp memory left, Exp memory right) pure internal returns (bool) {\n\n return left.mantissa < right.mantissa;\n\n }\n\n\n\n /**\n\n * @dev Checks if left Exp <= right Exp.\n\n */\n\n function lessThanOrEqualExp(Exp memory left, Exp memory right) pure internal returns (bool) {\n\n return left.mantissa <= right.mantissa;\n\n }\n\n\n\n /**\n\n * @dev Checks if left Exp > right Exp.\n\n */\n\n function greaterThanExp(Exp memory left, Exp memory right) pure internal returns (bool) {\n\n return left.mantissa > right.mantissa;\n\n }\n\n\n\n /**\n\n * @dev returns true if Exp is exactly zero\n\n */\n\n function isZeroExp(Exp memory value) pure internal returns (bool) {\n\n return value.mantissa == 0;\n\n }\n\n}\n\ncontract CompoundBorrowProxy {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n address public constant ETH_ADDR = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n address public constant COMPTROLLER_ADDR = 0x3d9819210A31b4961b30EF54bE2aeD79B9c9Cd3B;\n\n\n\n function borrow(address _cCollToken, address _cBorrowToken, address _borrowToken, uint _amount) public {\n\n address[] memory markets = new address[](2);\n\n markets[0] = _cCollToken;\n\n markets[1] = _cBorrowToken;\n\n\n\n ComptrollerInterface(COMPTROLLER_ADDR).enterMarkets(markets);\n\n\n\n require(CTokenInterface(_cBorrowToken).borrow(_amount) == 0);\n\n\n\n // withdraw funds to msg.sender\n\n if (_borrowToken != ETH_ADDR) {\n\n ERC20(_borrowToken).safeTransfer(msg.sender, ERC20(_borrowToken).balanceOf(address(this)));\n\n } else {\n\n msg.sender.transfer(address(this).balance);\n\n }\n\n }\n\n}\n\ncontract AllowanceProxy is AdminAuth {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n address public constant KYBER_ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n\n\n // TODO: Real saver exchange address\n\n SaverExchange saverExchange = SaverExchange(0x235abFAd01eb1BDa28Ef94087FBAA63E18074926);\n\n\n\n function callSell(SaverExchangeCore.ExchangeData memory exData) public payable {\n\n pullAndSendTokens(exData.srcAddr, exData.srcAmount);\n\n\n\n saverExchange.sell{value: msg.value}(exData, msg.sender);\n\n }\n\n\n\n function callBuy(SaverExchangeCore.ExchangeData memory exData) public payable {\n\n pullAndSendTokens(exData.srcAddr, exData.srcAmount);\n\n\n\n saverExchange.buy{value: msg.value}(exData, msg.sender);\n\n }\n\n\n\n function pullAndSendTokens(address _tokenAddr, uint _amount) internal {\n\n if (_tokenAddr == KYBER_ETH_ADDRESS) {\n\n require(msg.value >= _amount, \"msg.value smaller than amount\");\n\n } else {\n\n ERC20(_tokenAddr).safeTransferFrom(msg.sender, address(saverExchange), _amount);\n\n }\n\n }\n\n\n\n function ownerChangeExchange(address payable _newExchange) public onlyOwner {\n\n saverExchange = SaverExchange(_newExchange);\n\n }\n\n}\n\ncontract Prices is DSMath {\n\n\n\n address public constant KYBER_ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n\n\n enum ActionType { SELL, BUY }\n\n\n\n\n\n /// @notice Returns the best estimated price from 2 exchanges\n\n /// @param _amount Amount of source tokens you want to exchange\n\n /// @param _srcToken Address of the source token\n\n /// @param _destToken Address of the destination token\n\n /// @param _type Type of action SELL|BUY\n\n /// @param _wrappers Array of wrapper addresses to compare\n\n /// @return (address, uint) The address of the best exchange and the exchange price\n\n function getBestPrice(\n\n uint256 _amount,\n\n address _srcToken,\n\n address _destToken,\n\n ActionType _type,\n\n address[] memory _wrappers\n\n ) public returns (address, uint256) {\n\n\n\n uint256[] memory rates = new uint256[](_wrappers.length);\n\n for (uint i=0; i<_wrappers.length; i++) {\n\n rates[i] = getExpectedRate(_wrappers[i], _srcToken, _destToken, _amount, _type);\n\n }\n\n\n\n if (_type == ActionType.SELL) {\n\n return getBiggestRate(_wrappers, rates);\n\n } else {\n\n return getSmallestRate(_wrappers, rates);\n\n }\n\n }\n\n\n\n /// @notice Return the expected rate from the exchange wrapper\n\n /// @dev In case of Oasis/Uniswap handles the different precision tokens\n\n /// @param _wrapper Address of exchange wrapper\n\n /// @param _srcToken From token\n\n /// @param _destToken To token\n\n /// @param _amount Amount to be exchanged\n\n /// @param _type Type of action SELL|BUY\n\n function getExpectedRate(\n\n address _wrapper,\n\n address _srcToken,\n\n address _destToken,\n\n uint256 _amount,\n\n ActionType _type\n\n ) public returns (uint256) {\n\n bool success;\n\n bytes memory result;\n\n\n\n if (_type == ActionType.SELL) {\n\n (success, result) = _wrapper.call(abi.encodeWithSignature(\n\n \"getSellRate(address,address,uint256)\",\n\n _srcToken,\n\n _destToken,\n\n _amount\n\n ));\n\n\n\n } else {\n\n (success, result) = _wrapper.call(abi.encodeWithSignature(\n\n \"getBuyRate(address,address,uint256)\",\n\n _srcToken,\n\n _destToken,\n\n _amount\n\n ));\n\n }\n\n\n\n if (success) {\n\n return sliceUint(result, 0);\n\n }\n\n\n\n return 0;\n\n }\n\n\n\n /// @notice Finds the biggest rate between exchanges, needed for sell rate\n\n /// @param _wrappers Array of wrappers to compare\n\n /// @param _rates Array of rates to compare\n\n function getBiggestRate(\n\n address[] memory _wrappers,\n\n uint256[] memory _rates\n\n ) internal pure returns (address, uint) {\n\n uint256 maxIndex = 0;\n\n\n\n // starting from 0 in case there is only one rate in array\n\n for (uint256 i=0; i<_rates.length; i++) {\n\n if (_rates[i] > _rates[maxIndex]) {\n\n maxIndex = i;\n\n }\n\n }\n\n\n\n return (_wrappers[maxIndex], _rates[maxIndex]);\n\n }\n\n\n\n /// @notice Finds the smallest rate between exchanges, needed for buy rate\n\n /// @param _wrappers Array of wrappers to compare\n\n /// @param _rates Array of rates to compare\n\n function getSmallestRate(\n\n address[] memory _wrappers,\n\n uint256[] memory _rates\n\n ) internal pure returns (address, uint) {\n\n uint256 minIndex = 0;\n\n\n\n // starting from 0 in case there is only one rate in array\n\n for (uint256 i=0; i<_rates.length; i++) {\n\n if ((_rates[i] < _rates[minIndex] && _rates[i] > 0) || _rates[minIndex] == 0) {\n\n minIndex = i;\n\n }\n\n }\n\n\n\n return (_wrappers[minIndex], _rates[minIndex]);\n\n }\n\n\n\n function getDecimals(address _token) internal view returns (uint256) {\n\n if (_token == KYBER_ETH_ADDRESS) return 18;\n\n\n\n return ERC20(_token).decimals();\n\n }\n\n\n\n function sliceUint(bytes memory bs, uint256 start) internal pure returns (uint256) {\n\n require(bs.length >= start + 32, \"slicing out of range\");\n\n\n\n uint256 x;\n\n assembly {\n\n x := mload(add(bs, add(0x20, start)))\n\n }\n\n\n\n return x;\n\n }\n\n}\n\ncontract SaverExchangeHelper {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n address public constant KYBER_ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n address public constant WETH_ADDRESS = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;\n\n\n\n address payable public constant WALLET_ID = 0x322d58b9E75a6918f7e7849AEe0fF09369977e08;\n\n address public constant DISCOUNT_ADDRESS = 0x1b14E8D511c9A4395425314f849bD737BAF8208F;\n\n address public constant SAVER_EXCHANGE_REGISTRY = 0x25dd3F51e0C3c3Ff164DDC02A8E4D65Bb9cBB12D;\n\n\n\n address public constant ERC20_PROXY_0X = 0x95E6F48254609A6ee006F7D493c8e5fB97094ceF;\n\n address public constant ZRX_ALLOWLIST_ADDR = 0x4BA1f38427b33B8ab7Bb0490200dAE1F1C36823F;\n\n\n\n\n\n function getDecimals(address _token) internal view returns (uint256) {\n\n if (_token == KYBER_ETH_ADDRESS) return 18;\n\n\n\n return ERC20(_token).decimals();\n\n }\n\n\n\n function getBalance(address _tokenAddr) internal view returns (uint balance) {\n\n if (_tokenAddr == KYBER_ETH_ADDRESS) {\n\n balance = address(this).balance;\n\n } else {\n\n balance = ERC20(_tokenAddr).balanceOf(address(this));\n\n }\n\n }\n\n\n\n function approve0xProxy(address _tokenAddr, uint _amount) internal {\n\n if (_tokenAddr != KYBER_ETH_ADDRESS) {\n\n ERC20(_tokenAddr).safeApprove(address(ERC20_PROXY_0X), _amount);\n\n }\n\n }\n\n\n\n function sendLeftover(address _srcAddr, address _destAddr, address payable _to) internal {\n\n // send back any leftover ether or tokens\n\n if (address(this).balance > 0) {\n\n _to.transfer(address(this).balance);\n\n }\n\n\n\n if (getBalance(_srcAddr) > 0) {\n\n ERC20(_srcAddr).safeTransfer(_to, getBalance(_srcAddr));\n\n }\n\n\n\n if (getBalance(_destAddr) > 0) {\n\n ERC20(_destAddr).safeTransfer(_to, getBalance(_destAddr));\n\n }\n\n }\n\n\n\n function sliceUint(bytes memory bs, uint256 start) internal pure returns (uint256) {\n\n require(bs.length >= start + 32, \"slicing out of range\");\n\n\n\n uint256 x;\n\n assembly {\n\n x := mload(add(bs, add(0x20, start)))\n\n }\n\n\n\n return x;\n\n }\n\n}\n\ncontract SaverExchangeRegistry is AdminAuth {\n\n\n\n\tmapping(address => bool) private wrappers;\n\n\n\n\tconstructor() public {\n\n\t\twrappers[0x880A845A85F843a5c67DB2061623c6Fc3bB4c511] = true;\n\n\t\twrappers[0x4c9B55f2083629A1F7aDa257ae984E03096eCD25] = true;\n\n\t\twrappers[0x42A9237b872368E1bec4Ca8D26A928D7d39d338C] = true;\n\n\t}\n\n\n\n\tfunction addWrapper(address _wrapper) public onlyOwner {\n\n\t\twrappers[_wrapper] = true;\n\n\t}\n\n\n\n\tfunction removeWrapper(address _wrapper) public onlyOwner {\n\n\t\twrappers[_wrapper] = false;\n\n\t}\n\n\n\n\tfunction isWrapper(address _wrapper) public view returns(bool) {\n\n\t\treturn wrappers[_wrapper];\n\n\t}\n\n}\n\nabstract contract CEtherInterface {\n\n function mint() external virtual payable;\n\n function repayBorrow() external virtual payable;\n\n}\n\nabstract contract Cat {\n\n struct Ilk {\n\n address flip; // Liquidator\n\n uint256 chop; // Liquidation Penalty [ray]\n\n uint256 lump; // Liquidation Quantity [wad]\n\n }\n\n\n\n mapping (bytes32 => Ilk) public ilks;\n\n}\n\nabstract contract CompoundOracleInterface {\n\n function getUnderlyingPrice(address cToken) external view virtual returns (uint);\n\n}\n\nabstract contract ComptrollerInterface {\n\n function enterMarkets(address[] calldata cTokens) external virtual returns (uint256[] memory);\n\n\n\n function exitMarket(address cToken) external virtual returns (uint256);\n\n\n\n function getAssetsIn(address account) external virtual view returns (address[] memory);\n\n\n\n function markets(address account) public virtual view returns (bool, uint256);\n\n\n\n function getAccountLiquidity(address account) external virtual view returns (uint256, uint256, uint256);\n\n\n\n function claimComp(address holder) virtual public;\n\n\n\n function oracle() public virtual view returns (address);\n\n}\n\nabstract contract DSProxyInterface {\n\n\n\n /// Truffle wont compile if this isn't commented\n\n // function execute(bytes memory _code, bytes memory _data)\n\n // public virtual\n\n // payable\n\n // returns (address, bytes32);\n\n\n\n function execute(address _target, bytes memory _data) public virtual payable returns (bytes32);\n\n\n\n function setCache(address _cacheAddr) public virtual payable returns (bool);\n\n\n\n function owner() public virtual returns (address);\n\n}\n\nabstract contract GemLike {\n\n function approve(address, uint) public virtual;\n\n function transfer(address, uint) public virtual;\n\n function transferFrom(address, address, uint) public virtual;\n\n function deposit() public virtual payable;\n\n function withdraw(uint) public virtual;\n\n}\n\nabstract contract ManagerLike {\n\n function cdpCan(address, uint, address) public virtual view returns (uint);\n\n function ilks(uint) public virtual view returns (bytes32);\n\n function owns(uint) public virtual view returns (address);\n\n function urns(uint) public virtual view returns (address);\n\n function vat() public virtual view returns (address);\n\n function open(bytes32) public virtual returns (uint);\n\n function give(uint, address) public virtual;\n\n function cdpAllow(uint, address, uint) public virtual;\n\n function urnAllow(address, uint) public virtual;\n\n function frob(uint, int, int) public virtual;\n\n function frob(uint, address, int, int) public virtual;\n\n function flux(uint, address, uint) public virtual;\n\n function move(uint, address, uint) public virtual;\n\n function exit(address, uint, address, uint) public virtual;\n\n function quit(uint, address) public virtual;\n\n function enter(address, uint) public virtual;\n\n function shift(uint, uint) public virtual;\n\n}\n\nabstract contract VatLike {\n\n function can(address, address) public virtual view returns (uint);\n\n function ilks(bytes32) public virtual view returns (uint, uint, uint, uint, uint);\n\n function dai(address) public virtual view returns (uint);\n\n function urns(bytes32, address) public virtual view returns (uint, uint);\n\n function frob(bytes32, address, address, address, int, int) public virtual;\n\n function hope(address) public virtual;\n\n function move(address, address, uint) public virtual;\n\n}\n\nabstract contract GemJoinLike {\n\n function dec() public virtual returns (uint);\n\n function gem() public virtual returns (GemLike);\n\n function join(address, uint) public virtual payable;\n\n function exit(address, uint) public virtual;\n\n}\n\nabstract contract GNTJoinLike {\n\n function bags(address) public virtual view returns (address);\n\n function make(address) public virtual returns (address);\n\n}\n\nabstract contract DaiJoinLike {\n\n function vat() public virtual returns (VatLike);\n\n function dai() public virtual returns (GemLike);\n\n function join(address, uint) public virtual payable;\n\n function exit(address, uint) public virtual;\n\n}\n\nabstract contract HopeLike {\n\n function hope(address) public virtual;\n\n function nope(address) public virtual;\n\n}\n\nabstract contract EndLike {\n\n function fix(bytes32) public virtual view returns (uint);\n\n function cash(bytes32, uint) public virtual;\n\n function free(bytes32) public virtual;\n\n function pack(uint) public virtual;\n\n function skim(bytes32, address) public virtual;\n\n}\n\nabstract contract JugLike {\n\n function drip(bytes32) public virtual;\n\n}\n\nabstract contract PotLike {\n\n function chi() public virtual view returns (uint);\n\n function pie(address) public virtual view returns (uint);\n\n function drip() public virtual;\n\n function join(uint) public virtual;\n\n function exit(uint) public virtual;\n\n}\n\nabstract contract ProxyRegistryLike {\n\n function proxies(address) public virtual view returns (address);\n\n function build(address) public virtual returns (address);\n\n}\n\nabstract contract ProxyLike {\n\n function owner() public virtual view returns (address);\n\n}\n\nabstract contract DssProxyActions {\n\n function daiJoin_join(address apt, address urn, uint wad) public virtual;\n\n function transfer(address gem, address dst, uint wad) public virtual;\n\n function ethJoin_join(address apt, address urn) public virtual payable;\n\n function gemJoin_join(address apt, address urn, uint wad, bool transferFrom) public virtual payable;\n\n\n\n function hope(address obj, address usr) public virtual;\n\n function nope(address obj, address usr) public virtual;\n\n\n\n function open(address manager, bytes32 ilk, address usr) public virtual returns (uint cdp);\n\n function give(address manager, uint cdp, address usr) public virtual;\n\n function giveToProxy(address proxyRegistry, address manager, uint cdp, address dst) public virtual;\n\n\n\n function cdpAllow(address manager, uint cdp, address usr, uint ok) public virtual;\n\n function urnAllow(address manager, address usr, uint ok) public virtual;\n\n function flux(address manager, uint cdp, address dst, uint wad) public virtual;\n\n function move(address manager, uint cdp, address dst, uint rad) public virtual;\n\n function frob(address manager, uint cdp, int dink, int dart) public virtual;\n\n function frob(address manager, uint cdp, address dst, int dink, int dart) public virtual;\n\n function quit(address manager, uint cdp, address dst) public virtual;\n\n function enter(address manager, address src, uint cdp) public virtual;\n\n function shift(address manager, uint cdpSrc, uint cdpOrg) public virtual;\n\n function makeGemBag(address gemJoin) public virtual returns (address bag);\n\n\n\n function lockETH(address manager, address ethJoin, uint cdp) public virtual payable;\n\n function safeLockETH(address manager, address ethJoin, uint cdp, address owner) public virtual payable;\n\n function lockGem(address manager, address gemJoin, uint cdp, uint wad, bool transferFrom) public virtual;\n\n function safeLockGem(address manager, address gemJoin, uint cdp, uint wad, bool transferFrom, address owner) public virtual;\n\n function freeETH(address manager, address ethJoin, uint cdp, uint wad) public virtual;\n\n function freeGem(address manager, address gemJoin, uint cdp, uint wad) public virtual;\n\n function draw(address manager, address jug, address daiJoin, uint cdp, uint wad) public virtual;\n\n\n\n function wipe(address manager, address daiJoin, uint cdp, uint wad) public virtual;\n\n function safeWipe(address manager, address daiJoin, uint cdp, uint wad, address owner) public virtual;\n\n function wipeAll(address manager, address daiJoin, uint cdp) public virtual;\n\n function safeWipeAll(address manager, address daiJoin, uint cdp, address owner) public virtual;\n\n function lockETHAndDraw(address manager, address jug, address ethJoin, address daiJoin, uint cdp, uint wadD) public virtual payable;\n\n function openLockETHAndDraw(address manager, address jug, address ethJoin, address daiJoin, bytes32 ilk, uint wadD) public virtual payable returns (uint cdp);\n\n function lockGemAndDraw(address manager, address jug, address gemJoin, address daiJoin, uint cdp, uint wadC, uint wadD, bool transferFrom) public virtual;\n\n function openLockGemAndDraw(address manager, address jug, address gemJoin, address daiJoin, bytes32 ilk, uint wadC, uint wadD, bool transferFrom) public virtual returns (uint cdp);\n\n\n\n function openLockGNTAndDraw(address manager, address jug, address gntJoin, address daiJoin, bytes32 ilk, uint wadC, uint wadD) public virtual returns (address bag, uint cdp);\n\n function wipeAndFreeETH(address manager, address ethJoin, address daiJoin, uint cdp, uint wadC, uint wadD) public virtual;\n\n function wipeAllAndFreeETH(address manager, address ethJoin, address daiJoin, uint cdp, uint wadC) public virtual;\n\n function wipeAndFreeGem(address manager, address gemJoin, address daiJoin, uint cdp, uint wadC, uint wadD) public virtual;\n\n function wipeAllAndFreeGem(address manager, address gemJoin, address daiJoin, uint cdp, uint wadC) public virtual;\n\n}\n\nabstract contract DaiJoin {\n\n function vat() public virtual returns (Vat);\n\n function dai() public virtual returns (Gem);\n\n function join(address, uint) public virtual payable;\n\n function exit(address, uint) public virtual;\n\n}\n\nabstract contract DssProxyActionsDsr {\n\n function join(address daiJoin, address pot, uint wad) virtual public;\n\n function exit(address daiJoin, address pot, uint wad) virtual public;\n\n function exitAll(address daiJoin, address pot) virtual public;\n\n}\n\ninterface ERC20 {\n\n function totalSupply() external view returns (uint256 supply);\n\n\n\n function balanceOf(address _owner) external view returns (uint256 balance);\n\n\n\n function transfer(address _to, uint256 _value) external returns (bool success);\n\n\n\n function transferFrom(address _from, address _to, uint256 _value)\n\n external\n\n returns (bool success);\n\n\n\n function approve(address _spender, uint256 _value) external returns (bool success);\n\n\n\n function allowance(address _owner, address _spender) external view returns (uint256 remaining);\n\n\n\n function decimals() external view returns (uint256 digits);\n\n\n\n event Approval(address indexed _owner, address indexed _spender, uint256 _value);\n\n}\n\ninterface ExchangeInterface {\n\n function swapEtherToToken(uint256 _ethAmount, address _tokenAddress, uint256 _maxAmount)\n\n external\n\n payable\n\n returns (uint256, uint256);\n\n\n\n function swapTokenToEther(address _tokenAddress, uint256 _amount, uint256 _maxAmount)\n\n external\n\n returns (uint256);\n\n\n\n function swapTokenToToken(address _src, address _dest, uint256 _amount)\n\n external\n\n payable\n\n returns (uint256);\n\n\n\n function getExpectedRate(address src, address dest, uint256 srcQty)\n\n external\n\n view\n\n returns (uint256 expectedRate);\n\n}\n\ninterface ExchangeInterfaceV2 {\n\n function sell(address _srcAddr, address _destAddr, uint _srcAmount) external payable returns (uint);\n\n\n\n function buy(address _srcAddr, address _destAddr, uint _destAmount) external payable returns(uint);\n\n\n\n function getSellRate(address _srcAddr, address _destAddr, uint _srcAmount) external view returns (uint);\n\n\n\n function getBuyRate(address _srcAddr, address _destAddr, uint _srcAmount) external view returns (uint);\n\n}\n\nabstract contract Faucet {\n\n function gulp(address) public virtual;\n\n}\n\nabstract contract Flipper {\n\n function bids(uint _bidId) public virtual returns (uint256, uint256, address, uint48, uint48, address, address, uint256);\n\n function tend(uint id, uint lot, uint bid) virtual external;\n\n function dent(uint id, uint lot, uint bid) virtual external;\n\n function deal(uint id) virtual external;\n\n}\n\nabstract contract GasTokenInterface is ERC20 {\n\n function free(uint256 value) public virtual returns (bool success);\n\n\n\n function freeUpTo(uint256 value) public virtual returns (uint256 freed);\n\n\n\n function freeFrom(address from, uint256 value) public virtual returns (bool success);\n\n\n\n function freeFromUpTo(address from, uint256 value) public virtual returns (uint256 freed);\n\n}\n\nabstract contract Gem {\n\n function dec() virtual public returns (uint);\n\n function gem() virtual public returns (Gem);\n\n function join(address, uint) virtual public payable;\n\n function exit(address, uint) virtual public;\n\n\n\n function approve(address, uint) virtual public;\n\n function transfer(address, uint) virtual public returns (bool);\n\n function transferFrom(address, address, uint) virtual public returns (bool);\n\n function deposit() virtual public payable;\n\n function withdraw(uint) virtual public;\n\n function allowance(address, address) virtual public returns (uint);\n\n}\n\nabstract contract GetCdps {\n\n function getCdpsAsc(address manager, address guy) external view virtual returns (uint[] memory ids, address[] memory urns, bytes32[] memory ilks);\n\n function getCdpsDesc(address manager, address guy) external view virtual returns (uint[] memory ids, address[] memory urns, bytes32[] memory ilks);\n\n}\n\nabstract contract IAToken {\n\n function redeem(uint256 _amount) external virtual;\n\n}\n\nabstract contract IAaveSubscription {\n\n function subscribe(uint128 _minRatio, uint128 _maxRatio, uint128 _optimalBoost, uint128 _optimalRepay, bool _boostEnabled) public virtual;\n\n function unsubscribe() public virtual;\n\n}\n\nabstract contract ICompoundSubscription {\n\n function subscribe(uint128 _minRatio, uint128 _maxRatio, uint128 _optimalBoost, uint128 _optimalRepay, bool _boostEnabled) public virtual;\n\n function unsubscribe() public virtual;\n\n}\n\nabstract contract ILendingPool {\n\n function flashLoan( address payable _receiver, address _reserve, uint _amount, bytes calldata _params) external virtual;\n\n function deposit(address _reserve, uint256 _amount, uint16 _referralCode) external virtual payable;\n\n\tfunction setUserUseReserveAsCollateral(address _reserve, bool _useAsCollateral) external virtual;\n\n\tfunction borrow(address _reserve, uint256 _amount, uint256 _interestRateMode, uint16 _referralCode) external virtual;\n\n\tfunction repay( address _reserve, uint256 _amount, address payable _onBehalfOf) external virtual payable;\n\n\tfunction swapBorrowRateMode(address _reserve) external virtual;\n\n function getReserves() external virtual view returns(address[] memory);\n\n\n\n /// @param _reserve underlying token address\n\n function getReserveData(address _reserve)\n\n external virtual\n\n view\n\n returns (\n\n uint256 totalLiquidity, // reserve total liquidity\n\n uint256 availableLiquidity, // reserve available liquidity for borrowing\n\n uint256 totalBorrowsStable, // total amount of outstanding borrows at Stable rate\n\n uint256 totalBorrowsVariable, // total amount of outstanding borrows at Variable rate\n\n uint256 liquidityRate, // current deposit APY of the reserve for depositors, in Ray units.\n\n uint256 variableBorrowRate, // current variable rate APY of the reserve pool, in Ray units.\n\n uint256 stableBorrowRate, // current stable rate APY of the reserve pool, in Ray units.\n\n uint256 averageStableBorrowRate, // current average stable borrow rate\n\n uint256 utilizationRate, // expressed as total borrows/total liquidity.\n\n uint256 liquidityIndex, // cumulative liquidity index\n\n uint256 variableBorrowIndex, // cumulative variable borrow index\n\n address aTokenAddress, // aTokens contract address for the specific _reserve\n\n uint40 lastUpdateTimestamp // timestamp of the last update of reserve data\n\n );\n\n\n\n /// @param _user users address\n\n function getUserAccountData(address _user)\n\n external virtual\n\n view\n\n returns (\n\n uint256 totalLiquidityETH, // user aggregated deposits across all the reserves. In Wei\n\n uint256 totalCollateralETH, // user aggregated collateral across all the reserves. In Wei\n\n uint256 totalBorrowsETH, // user aggregated outstanding borrows across all the reserves. In Wei\n\n uint256 totalFeesETH, // user aggregated current outstanding fees in ETH. In Wei\n\n uint256 availableBorrowsETH, // user available amount to borrow in ETH\n\n uint256 currentLiquidationThreshold, // user current average liquidation threshold across all the collaterals deposited\n\n uint256 ltv, // user average Loan-to-Value between all the collaterals\n\n uint256 healthFactor // user current Health Factor\n\n ); \n\n\n\n /// @param _reserve underlying token address\n\n /// @param _user users address\n\n function getUserReserveData(address _reserve, address _user)\n\n external virtual\n\n view\n\n returns (\n\n uint256 currentATokenBalance, // user current reserve aToken balance\n\n uint256 currentBorrowBalance, // user current reserve outstanding borrow balance\n\n uint256 principalBorrowBalance, // user balance of borrowed asset\n\n uint256 borrowRateMode, // user borrow rate mode either Stable or Variable\n\n uint256 borrowRate, // user current borrow rate APY\n\n uint256 liquidityRate, // user current earn rate on _reserve\n\n uint256 originationFee, // user outstanding loan origination fee\n\n uint256 variableBorrowIndex, // user variable cumulative index\n\n uint256 lastUpdateTimestamp, // Timestamp of the last data update\n\n bool usageAsCollateralEnabled // Whether the user's current reserve is enabled as a collateral\n\n );\n\n\n\n function getReserveConfigurationData(address _reserve)\n\n external virtual\n\n view\n\n returns (\n\n uint256 ltv,\n\n uint256 liquidationThreshold,\n\n uint256 liquidationBonus,\n\n address rateStrategyAddress,\n\n bool usageAsCollateralEnabled,\n\n bool borrowingEnabled,\n\n bool stableBorrowRateEnabled,\n\n bool isActive\n\n );\n\n\n\n // ------------------ LendingPoolCoreData ------------------------\n\n function getReserveATokenAddress(address _reserve) public virtual view returns (address);\n\n function getReserveConfiguration(address _reserve)\n\n external virtual\n\n view\n\n returns (uint256, uint256, uint256, bool);\n\n function getUserUnderlyingAssetBalance(address _reserve, address _user)\n\n public virtual\n\n view\n\n returns (uint256);\n\n\n\n function getReserveCurrentLiquidityRate(address _reserve)\n\n public virtual\n\n view\n\n returns (uint256);\n\n function getReserveCurrentVariableBorrowRate(address _reserve)\n\n public virtual\n\n view\n\n returns (uint256);\n\n function getReserveTotalLiquidity(address _reserve)\n\n public virtual\n\n view\n\n returns (uint256);\n\n function getReserveAvailableLiquidity(address _reserve)\n\n public virtual\n\n view\n\n returns (uint256);\n\n function getReserveTotalBorrowsVariable(address _reserve)\n\n public virtual\n\n view\n\n returns (uint256);\n\n\n\n // ---------------- LendingPoolDataProvider ---------------------\n\n function calculateUserGlobalData(address _user)\n\n public virtual\n\n view\n\n returns (\n\n uint256 totalLiquidityBalanceETH,\n\n uint256 totalCollateralBalanceETH,\n\n uint256 totalBorrowBalanceETH,\n\n uint256 totalFeesETH,\n\n uint256 currentLtv,\n\n uint256 currentLiquidationThreshold,\n\n uint256 healthFactor,\n\n bool healthFactorBelowThreshold\n\n );\n\n}\n\nabstract contract ILendingPoolAddressesProvider {\n\n\n\n function getLendingPool() public virtual view returns (address);\n\n function getLendingPoolCore() public virtual view returns (address payable);\n\n function getLendingPoolConfigurator() public virtual view returns (address);\n\n function getLendingPoolDataProvider() public virtual view returns (address);\n\n function getLendingPoolParametersProvider() public virtual view returns (address);\n\n function getTokenDistributor() public virtual view returns (address);\n\n function getFeeProvider() public virtual view returns (address);\n\n function getLendingPoolLiquidationManager() public virtual view returns (address);\n\n function getLendingPoolManager() public virtual view returns (address);\n\n function getPriceOracle() public virtual view returns (address);\n\n function getLendingRateOracle() public virtual view returns (address);\n\n}\n\nabstract contract ILoanShifter {\n\n function getLoanAmount(uint, address) public view virtual returns(uint);\n\n function getUnderlyingAsset(address _addr) public view virtual returns (address);\n\n}\n\nabstract contract IPriceOracleGetterAave {\n\n function getAssetPrice(address _asset) external virtual view returns (uint256);\n\n function getAssetsPrices(address[] calldata _assets) external virtual view returns(uint256[] memory);\n\n function getSourceOfAsset(address _asset) external virtual view returns(address);\n\n function getFallbackOracle() external virtual view returns(address);\n\n}\n\nabstract contract ITokenInterface is ERC20 {\n\n function assetBalanceOf(address _owner) public virtual view returns (uint256);\n\n\n\n function mint(address receiver, uint256 depositAmount) external virtual returns (uint256 mintAmount);\n\n\n\n function burn(address receiver, uint256 burnAmount) external virtual returns (uint256 loanAmountPaid);\n\n\n\n function tokenPrice() public virtual view returns (uint256 price);\n\n}\n\nabstract contract Join {\n\n bytes32 public ilk;\n\n\n\n function dec() virtual public view returns (uint);\n\n function gem() virtual public view returns (Gem);\n\n function join(address, uint) virtual public payable;\n\n function exit(address, uint) virtual public;\n\n}\n\nabstract contract Jug {\n\n struct Ilk {\n\n uint256 duty;\n\n uint256 rho;\n\n }\n\n\n\n mapping (bytes32 => Ilk) public ilks;\n\n\n\n function drip(bytes32) public virtual returns (uint);\n\n}\n\nabstract contract KyberNetworkProxyInterface {\n\n function maxGasPrice() external virtual view returns (uint256);\n\n\n\n function getUserCapInWei(address user) external virtual view returns (uint256);\n\n\n\n function getUserCapInTokenWei(address user, ERC20 token) external virtual view returns (uint256);\n\n\n\n function enabled() external virtual view returns (bool);\n\n\n\n function info(bytes32 id) external virtual view returns (uint256);\n\n\n\n function getExpectedRate(ERC20 src, ERC20 dest, uint256 srcQty)\n\n public virtual\n\n view\n\n returns (uint256 expectedRate, uint256 slippageRate);\n\n\n\n function tradeWithHint(\n\n ERC20 src,\n\n uint256 srcAmount,\n\n ERC20 dest,\n\n address destAddress,\n\n uint256 maxDestAmount,\n\n uint256 minConversionRate,\n\n address walletId,\n\n bytes memory hint\n\n ) public virtual payable returns (uint256);\n\n\n\n function trade(\n\n ERC20 src,\n\n uint256 srcAmount,\n\n ERC20 dest,\n\n address destAddress,\n\n uint256 maxDestAmount,\n\n uint256 minConversionRate,\n\n address walletId\n\n ) public virtual payable returns (uint256);\n\n\n\n function swapEtherToToken(ERC20 token, uint256 minConversionRate)\n\n external virtual\n\n payable\n\n returns (uint256);\n\n\n\n function swapTokenToEther(ERC20 token, uint256 tokenQty, uint256 minRate)\n\n external virtual\n\n payable\n\n returns (uint256);\n\n\n\n function swapTokenToToken(ERC20 src, uint256 srcAmount, ERC20 dest, uint256 minConversionRate)\n\n public virtual\n\n returns (uint256);\n\n}\n\nabstract contract Manager {\n\n function last(address) virtual public returns (uint);\n\n function cdpCan(address, uint, address) virtual public view returns (uint);\n\n function ilks(uint) virtual public view returns (bytes32);\n\n function owns(uint) virtual public view returns (address);\n\n function urns(uint) virtual public view returns (address);\n\n function vat() virtual public view returns (address);\n\n function open(bytes32, address) virtual public returns (uint);\n\n function give(uint, address) virtual public;\n\n function cdpAllow(uint, address, uint) virtual public;\n\n function urnAllow(address, uint) virtual public;\n\n function frob(uint, int, int) virtual public;\n\n function flux(uint, address, uint) virtual public;\n\n function move(uint, address, uint) virtual public;\n\n function exit(address, uint, address, uint) virtual public;\n\n function quit(uint, address) virtual public;\n\n function enter(address, uint) virtual public;\n\n function shift(uint, uint) virtual public;\n\n}\n\nabstract contract OasisInterface {\n\n function getBuyAmount(address tokenToBuy, address tokenToPay, uint256 amountToPay)\n\n external\n\n virtual\n\n view\n\n returns (uint256 amountBought);\n\n\n\n function getPayAmount(address tokenToPay, address tokenToBuy, uint256 amountToBuy)\n\n public virtual\n\n view\n\n returns (uint256 amountPaid);\n\n\n\n function sellAllAmount(address pay_gem, uint256 pay_amt, address buy_gem, uint256 min_fill_amount)\n\n public virtual\n\n returns (uint256 fill_amt);\n\n\n\n function buyAllAmount(address buy_gem, uint256 buy_amt, address pay_gem, uint256 max_fill_amount)\n\n public virtual\n\n returns (uint256 fill_amt);\n\n}\n\nabstract contract Osm {\n\n mapping(address => uint256) public bud;\n\n\n\n function peep() external view virtual returns (bytes32, bool);\n\n}\n\nabstract contract OsmMom {\n\n mapping (bytes32 => address) public osms;\n\n}\n\nabstract contract OtcInterface {\n\n function buyAllAmount(address, uint256, address, uint256) public virtual returns (uint256);\n\n\n\n function getPayAmount(address, address, uint256) public virtual view returns (uint256);\n\n\n\n function getBuyAmount(address, address, uint256) public virtual view returns (uint256);\n\n}\n\nabstract contract PipInterface {\n\n function read() public virtual returns (bytes32);\n\n}\n\nabstract contract ProxyRegistryInterface {\n\n function proxies(address _owner) public virtual view returns (address);\n\n function build(address) public virtual returns (address);\n\n}\n\nabstract contract SaverExchangeInterface {\n\n function getBestPrice(\n\n uint256 _amount,\n\n address _srcToken,\n\n address _destToken,\n\n uint256 _exchangeType\n\n ) public view virtual returns (address, uint256);\n\n}\n\nabstract contract Spotter {\n\n struct Ilk {\n\n PipInterface pip;\n\n uint256 mat;\n\n }\n\n\n\n mapping (bytes32 => Ilk) public ilks;\n\n\n\n uint256 public par;\n\n\n\n}\n\nabstract contract TokenInterface {\n\n function allowance(address, address) public virtual returns (uint256);\n\n\n\n function balanceOf(address) public virtual returns (uint256);\n\n\n\n function approve(address, uint256) public virtual;\n\n\n\n function transfer(address, uint256) public virtual returns (bool);\n\n\n\n function transferFrom(address, address, uint256) public virtual returns (bool);\n\n\n\n function deposit() public virtual payable;\n\n\n\n function withdraw(uint256) public virtual;\n\n}\n\nabstract contract UniswapExchangeInterface {\n\n function getEthToTokenInputPrice(uint256 eth_sold)\n\n external virtual\n\n view\n\n returns (uint256 tokens_bought);\n\n\n\n function getEthToTokenOutputPrice(uint256 tokens_bought)\n\n external virtual\n\n view\n\n returns (uint256 eth_sold);\n\n\n\n function getTokenToEthInputPrice(uint256 tokens_sold)\n\n external virtual\n\n view\n\n returns (uint256 eth_bought);\n\n\n\n function getTokenToEthOutputPrice(uint256 eth_bought)\n\n external virtual\n\n view\n\n returns (uint256 tokens_sold);\n\n\n\n function tokenToEthTransferInput(\n\n uint256 tokens_sold,\n\n uint256 min_eth,\n\n uint256 deadline,\n\n address recipient\n\n ) external virtual returns (uint256 eth_bought);\n\n\n\n function ethToTokenTransferInput(uint256 min_tokens, uint256 deadline, address recipient)\n\n external virtual\n\n payable\n\n returns (uint256 tokens_bought);\n\n\n\n function tokenToTokenTransferInput(\n\n uint256 tokens_sold,\n\n uint256 min_tokens_bought,\n\n uint256 min_eth_bought,\n\n uint256 deadline,\n\n address recipient,\n\n address token_addr\n\n ) external virtual returns (uint256 tokens_bought);\n\n\n\n function ethToTokenTransferOutput(\n\n uint256 tokens_bought,\n\n uint256 deadline,\n\n address recipient\n\n ) external virtual payable returns (uint256 eth_sold);\n\n\n\n function tokenToEthTransferOutput(\n\n uint256 eth_bought,\n\n uint256 max_tokens,\n\n uint256 deadline,\n\n address recipient\n\n ) external virtual returns (uint256 tokens_sold);\n\n\n\n function tokenToTokenTransferOutput(\n\n uint256 tokens_bought,\n\n uint256 max_tokens_sold,\n\n uint256 max_eth_sold,\n\n uint256 deadline,\n\n address recipient,\n\n address token_addr\n\n ) external virtual returns (uint256 tokens_sold);\n\n\n\n}\n\nabstract contract UniswapFactoryInterface {\n\n function getExchange(address token) external view virtual returns (address exchange);\n\n}\n\nabstract contract UniswapRouterInterface {\n\n function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)\n\n external\n\n virtual\n\n returns (uint[] memory amounts);\n\n\n\n function swapExactTokensForTokens(\n\n uint amountIn,\n\n uint amountOutMin,\n\n address[] calldata path,\n\n address to,\n\n uint deadline\n\n ) external virtual returns (uint[] memory amounts);\n\n\n\n function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)\n\n external virtual\n\n returns (uint[] memory amounts);\n\n\n\n function swapTokensForExactTokens(\n\n uint amountOut,\n\n uint amountInMax,\n\n address[] calldata path,\n\n address to,\n\n uint deadline\n\n ) external virtual returns (uint[] memory amounts);\n\n\n\n function getAmountsOut(uint amountIn, address[] memory path) public virtual view returns (uint[] memory amounts);\n\n\n\n function getAmountsIn(uint amountOut, address[] memory path) public virtual view returns (uint[] memory amounts);\n\n}\n\nabstract contract Vat {\n\n\n\n struct Urn {\n\n uint256 ink; // Locked Collateral [wad]\n\n uint256 art; // Normalised Debt [wad]\n\n }\n\n\n\n struct Ilk {\n\n uint256 Art; // Total Normalised Debt [wad]\n\n uint256 rate; // Accumulated Rates [ray]\n\n uint256 spot; // Price with Safety Margin [ray]\n\n uint256 line; // Debt Ceiling [rad]\n\n uint256 dust; // Urn Debt Floor [rad]\n\n }\n\n\n\n mapping (bytes32 => mapping (address => Urn )) public urns;\n\n mapping (bytes32 => Ilk) public ilks;\n\n mapping (bytes32 => mapping (address => uint)) public gem; // [wad]\n\n\n\n function can(address, address) virtual public view returns (uint);\n\n function dai(address) virtual public view returns (uint);\n\n function frob(bytes32, address, address, address, int, int) virtual public;\n\n function hope(address) virtual public;\n\n function move(address, address, uint) virtual public;\n\n function fork(bytes32, address, address, int, int) virtual public;\n\n}\n\ncontract DefisaverLogger {\n\n event LogEvent(\n\n address indexed contractAddress,\n\n address indexed caller,\n\n string indexed logName,\n\n bytes data\n\n );\n\n\n\n // solhint-disable-next-line func-name-mixedcase\n\n function Log(address _contract, address _caller, string memory _logName, bytes memory _data)\n\n public\n\n {\n\n emit LogEvent(_contract, _caller, _logName, _data);\n\n }\n\n}\n\ncontract MCDMonitorProxyV2 is AdminAuth {\n\n\n\n uint public CHANGE_PERIOD;\n\n address public monitor;\n\n address public newMonitor;\n\n address public lastMonitor;\n\n uint public changeRequestedTimestamp;\n\n\n\n mapping(address => bool) public allowed;\n\n\n\n event MonitorChangeInitiated(address oldMonitor, address newMonitor);\n\n event MonitorChangeCanceled();\n\n event MonitorChangeFinished(address monitor);\n\n event MonitorChangeReverted(address monitor);\n\n\n\n // if someone who is allowed become malicious, owner can't be changed\n\n modifier onlyAllowed() {\n\n require(allowed[msg.sender] || msg.sender == owner);\n\n _;\n\n }\n\n\n\n modifier onlyMonitor() {\n\n require (msg.sender == monitor);\n\n _;\n\n }\n\n\n\n constructor(uint _changePeriod) public {\n\n CHANGE_PERIOD = _changePeriod * 1 days;\n\n }\n\n\n\n /// @notice Only monitor contract is able to call execute on users proxy\n\n /// @param _owner Address of cdp owner (users DSProxy address)\n\n /// @param _saverProxy Address of MCDSaverProxy\n\n /// @param _data Data to send to MCDSaverProxy\n\n function callExecute(address _owner, address _saverProxy, bytes memory _data) public payable onlyMonitor {\n\n // execute reverts if calling specific method fails\n\n DSProxyInterface(_owner).execute{value: msg.value}(_saverProxy, _data);\n\n\n\n // return if anything left\n\n if (address(this).balance > 0) {\n\n msg.sender.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n /// @notice Allowed users are able to set Monitor contract without any waiting period first time\n\n /// @param _monitor Address of Monitor contract\n\n function setMonitor(address _monitor) public onlyAllowed {\n\n require(monitor == address(0));\n\n monitor = _monitor;\n\n }\n\n\n\n /// @notice Allowed users are able to start procedure for changing monitor\n\n /// @dev after CHANGE_PERIOD needs to call confirmNewMonitor to actually make a change\n\n /// @param _newMonitor address of new monitor\n\n function changeMonitor(address _newMonitor) public onlyAllowed {\n\n require(changeRequestedTimestamp == 0);\n\n\n\n changeRequestedTimestamp = now;\n\n lastMonitor = monitor;\n\n newMonitor = _newMonitor;\n\n\n\n emit MonitorChangeInitiated(lastMonitor, newMonitor);\n\n }\n\n\n\n /// @notice At any point allowed users are able to cancel monitor change\n\n function cancelMonitorChange() public onlyAllowed {\n\n require(changeRequestedTimestamp > 0);\n\n\n\n changeRequestedTimestamp = 0;\n\n newMonitor = address(0);\n\n\n\n emit MonitorChangeCanceled();\n\n }\n\n\n\n /// @notice Anyone is able to confirm new monitor after CHANGE_PERIOD if process is started\n\n function confirmNewMonitor() public onlyAllowed {\n\n require((changeRequestedTimestamp + CHANGE_PERIOD) < now);\n\n require(changeRequestedTimestamp != 0);\n\n require(newMonitor != address(0));\n\n\n\n monitor = newMonitor;\n\n newMonitor = address(0);\n\n changeRequestedTimestamp = 0;\n\n\n\n emit MonitorChangeFinished(monitor);\n\n }\n\n\n\n /// @notice Its possible to revert monitor to last used monitor\n\n function revertMonitor() public onlyAllowed {\n\n require(lastMonitor != address(0));\n\n\n\n monitor = lastMonitor;\n\n\n\n emit MonitorChangeReverted(monitor);\n\n }\n\n\n\n\n\n /// @notice Allowed users are able to add new allowed user\n\n /// @param _user Address of user that will be allowed\n\n function addAllowed(address _user) public onlyAllowed {\n\n allowed[_user] = true;\n\n }\n\n\n\n /// @notice Allowed users are able to remove allowed user\n\n /// @dev owner is always allowed even if someone tries to remove it from allowed mapping\n\n /// @param _user Address of allowed user\n\n function removeAllowed(address _user) public onlyAllowed {\n\n allowed[_user] = false;\n\n }\n\n\n\n function setChangePeriod(uint _periodInDays) public onlyAllowed {\n\n require(_periodInDays * 1 days > CHANGE_PERIOD);\n\n\n\n CHANGE_PERIOD = _periodInDays * 1 days;\n\n }\n\n\n\n}\n\ncontract MCDPriceVerifier is AdminAuth {\n\n\n\n OsmMom public osmMom = OsmMom(0x76416A4d5190d071bfed309861527431304aA14f);\n\n Manager public manager = Manager(0x5ef30b9986345249bc32d8928B7ee64DE9435E39);\n\n\n\n mapping(address => bool) public authorized;\n\n\n\n function verifyVaultNextPrice(uint _nextPrice, uint _cdpId) public view returns(bool) {\n\n require(authorized[msg.sender]);\n\n\n\n bytes32 ilk = manager.ilks(_cdpId);\n\n\n\n return verifyNextPrice(_nextPrice, ilk);\n\n }\n\n\n\n function verifyNextPrice(uint _nextPrice, bytes32 _ilk) public view returns(bool) {\n\n require(authorized[msg.sender]);\n\n\n\n address osmAddress = osmMom.osms(_ilk);\n\n\n\n uint whitelisted = Osm(osmAddress).bud(address(this));\n\n // If contracts doesn't have access return true\n\n if (whitelisted != 1) return true;\n\n\n\n (bytes32 price, bool has) = Osm(osmAddress).peep();\n\n\n\n return has ? uint(price) == _nextPrice : false;\n\n }\n\n\n\n function setAuthorized(address _address, bool _allowed) public onlyOwner {\n\n authorized[_address] = _allowed;\n\n }\n\n}\n\nabstract contract StaticV2 {\n\n\n\n enum Method { Boost, Repay }\n\n\n\n struct CdpHolder {\n\n uint128 minRatio;\n\n uint128 maxRatio;\n\n uint128 optimalRatioBoost;\n\n uint128 optimalRatioRepay;\n\n address owner;\n\n uint cdpId;\n\n bool boostEnabled;\n\n bool nextPriceEnabled;\n\n }\n\n\n\n struct SubPosition {\n\n uint arrPos;\n\n bool subscribed;\n\n }\n\n}\n\ncontract SubscriptionsInterfaceV2 {\n\n function subscribe(uint _cdpId, uint128 _minRatio, uint128 _maxRatio, uint128 _optimalBoost, uint128 _optimalRepay, bool _boostEnabled, bool _nextPriceEnabled) external {}\n\n function unsubscribe(uint _cdpId) external {}\n\n}\n\ncontract SubscriptionsProxyV2 {\n\n\n\n address public constant MONITOR_PROXY_ADDRESS = 0x7456f4218874eAe1aF8B83a64848A1B89fEB7d7C;\n\n address public constant OLD_SUBSCRIPTION = 0x83152CAA0d344a2Fd428769529e2d490A88f4393;\n\n address public constant FACTORY_ADDRESS = 0x5a15566417e6C1c9546523066500bDDBc53F88C7;\n\n\n\n function migrate(uint _cdpId, uint128 _minRatio, uint128 _maxRatio, uint128 _optimalRatioBoost, uint128 _optimalRatioRepay, bool _boostEnabled, bool _nextPriceEnabled, address _subscriptions) public {\n\n SubscriptionsInterfaceV2(OLD_SUBSCRIPTION).unsubscribe(_cdpId);\n\n\n\n subscribe(_cdpId, _minRatio, _maxRatio, _optimalRatioBoost, _optimalRatioRepay, _boostEnabled, _nextPriceEnabled, _subscriptions);\n\n }\n\n\n\n function subscribe(uint _cdpId, uint128 _minRatio, uint128 _maxRatio, uint128 _optimalRatioBoost, uint128 _optimalRatioRepay, bool _boostEnabled, bool _nextPriceEnabled, address _subscriptions) public {\n\n\n\n address currAuthority = address(DSAuth(address(this)).authority());\n\n DSGuard guard = DSGuard(currAuthority);\n\n\n\n if (currAuthority == address(0)) {\n\n guard = DSGuardFactory(FACTORY_ADDRESS).newGuard();\n\n DSAuth(address(this)).setAuthority(DSAuthority(address(guard)));\n\n }\n\n\n\n guard.permit(MONITOR_PROXY_ADDRESS, address(this), bytes4(keccak256(\"execute(address,bytes)\")));\n\n\n\n SubscriptionsInterfaceV2(_subscriptions).subscribe(_cdpId, _minRatio, _maxRatio, _optimalRatioBoost, _optimalRatioRepay, _boostEnabled, _nextPriceEnabled);\n\n }\n\n\n\n function update(uint _cdpId, uint128 _minRatio, uint128 _maxRatio, uint128 _optimalRatioBoost, uint128 _optimalRatioRepay, bool _boostEnabled, bool _nextPriceEnabled, address _subscriptions) public {\n\n SubscriptionsInterfaceV2(_subscriptions).subscribe(_cdpId, _minRatio, _maxRatio, _optimalRatioBoost, _optimalRatioRepay, _boostEnabled, _nextPriceEnabled);\n\n }\n\n\n\n function unsubscribe(uint _cdpId, address _subscriptions) public {\n\n SubscriptionsInterfaceV2(_subscriptions).unsubscribe(_cdpId);\n\n }\n\n}\n\ncontract SubscriptionsV2 is AdminAuth, StaticV2 {\n\n\n\n bytes32 internal constant ETH_ILK = 0x4554482d41000000000000000000000000000000000000000000000000000000;\n\n bytes32 internal constant BAT_ILK = 0x4241542d41000000000000000000000000000000000000000000000000000000;\n\n\n\n address public constant MANAGER_ADDRESS = 0x5ef30b9986345249bc32d8928B7ee64DE9435E39;\n\n address public constant VAT_ADDRESS = 0x35D1b3F3D7966A1DFe207aa4514C12a259A0492B;\n\n address public constant SPOTTER_ADDRESS = 0x65C79fcB50Ca1594B025960e539eD7A9a6D434A3;\n\n\n\n CdpHolder[] public subscribers;\n\n mapping (uint => SubPosition) public subscribersPos;\n\n\n\n mapping (bytes32 => uint) public minLimits;\n\n\n\n uint public changeIndex;\n\n\n\n Manager public manager = Manager(MANAGER_ADDRESS);\n\n Vat public vat = Vat(VAT_ADDRESS);\n\n Spotter public spotter = Spotter(SPOTTER_ADDRESS);\n\n MCDSaverProxy public saverProxy;\n\n\n\n event Subscribed(address indexed owner, uint cdpId);\n\n event Unsubscribed(address indexed owner, uint cdpId);\n\n event Updated(address indexed owner, uint cdpId);\n\n event ParamUpdates(address indexed owner, uint cdpId, uint128, uint128, uint128, uint128, bool boostEnabled);\n\n\n\n /// @param _saverProxy Address of the MCDSaverProxy contract\n\n constructor(address _saverProxy) public {\n\n saverProxy = MCDSaverProxy(payable(_saverProxy));\n\n\n\n minLimits[ETH_ILK] = 1700000000000000000;\n\n minLimits[BAT_ILK] = 1700000000000000000;\n\n }\n\n\n\n /// @dev Called by the DSProxy contract which owns the CDP\n\n /// @notice Adds the users CDP in the list of subscriptions so it can be monitored\n\n /// @param _cdpId Id of the CDP\n\n /// @param _minRatio Minimum ratio below which repay is triggered\n\n /// @param _maxRatio Maximum ratio after which boost is triggered\n\n /// @param _optimalBoost Ratio amount which boost should target\n\n /// @param _optimalRepay Ratio amount which repay should target\n\n /// @param _boostEnabled Boolean determing if boost is enabled\n\n /// @param _nextPriceEnabled Boolean determing if we can use nextPrice for this cdp\n\n function subscribe(uint _cdpId, uint128 _minRatio, uint128 _maxRatio, uint128 _optimalBoost, uint128 _optimalRepay, bool _boostEnabled, bool _nextPriceEnabled) external {\n\n require(isOwner(msg.sender, _cdpId), \"Must be called by Cdp owner\");\n\n\n\n // if boost is not enabled, set max ratio to max uint\n\n uint128 localMaxRatio = _boostEnabled ? _maxRatio : uint128(-1);\n\n require(checkParams(manager.ilks(_cdpId), _minRatio, localMaxRatio), \"Must be correct params\");\n\n\n\n SubPosition storage subInfo = subscribersPos[_cdpId];\n\n\n\n CdpHolder memory subscription = CdpHolder({\n\n minRatio: _minRatio,\n\n maxRatio: localMaxRatio,\n\n optimalRatioBoost: _optimalBoost,\n\n optimalRatioRepay: _optimalRepay,\n\n owner: msg.sender,\n\n cdpId: _cdpId,\n\n boostEnabled: _boostEnabled,\n\n nextPriceEnabled: _nextPriceEnabled\n\n });\n\n\n\n changeIndex++;\n\n\n\n if (subInfo.subscribed) {\n\n subscribers[subInfo.arrPos] = subscription;\n\n\n\n emit Updated(msg.sender, _cdpId);\n\n emit ParamUpdates(msg.sender, _cdpId, _minRatio, localMaxRatio, _optimalBoost, _optimalRepay, _boostEnabled);\n\n } else {\n\n subscribers.push(subscription);\n\n\n\n subInfo.arrPos = subscribers.length - 1;\n\n subInfo.subscribed = true;\n\n\n\n emit Subscribed(msg.sender, _cdpId);\n\n }\n\n }\n\n\n\n /// @notice Called by the users DSProxy\n\n /// @dev Owner who subscribed cancels his subscription\n\n function unsubscribe(uint _cdpId) external {\n\n require(isOwner(msg.sender, _cdpId), \"Must be called by Cdp owner\");\n\n\n\n _unsubscribe(_cdpId);\n\n }\n\n\n\n /// @dev Checks if the _owner is the owner of the CDP\n\n function isOwner(address _owner, uint _cdpId) internal view returns (bool) {\n\n return getOwner(_cdpId) == _owner;\n\n }\n\n\n\n /// @dev Checks limit for minimum ratio and if minRatio is bigger than max\n\n function checkParams(bytes32 _ilk, uint128 _minRatio, uint128 _maxRatio) internal view returns (bool) {\n\n if (_minRatio < minLimits[_ilk]) {\n\n return false;\n\n }\n\n\n\n if (_minRatio > _maxRatio) {\n\n return false;\n\n }\n\n\n\n return true;\n\n }\n\n\n\n /// @dev Internal method to remove a subscriber from the list\n\n function _unsubscribe(uint _cdpId) internal {\n\n require(subscribers.length > 0, \"Must have subscribers in the list\");\n\n\n\n SubPosition storage subInfo = subscribersPos[_cdpId];\n\n\n\n require(subInfo.subscribed, \"Must first be subscribed\");\n\n\n\n uint lastCdpId = subscribers[subscribers.length - 1].cdpId;\n\n\n\n SubPosition storage subInfo2 = subscribersPos[lastCdpId];\n\n subInfo2.arrPos = subInfo.arrPos;\n\n\n\n subscribers[subInfo.arrPos] = subscribers[subscribers.length - 1];\n\n subscribers.pop();\n\n\n\n changeIndex++;\n\n subInfo.subscribed = false;\n\n subInfo.arrPos = 0;\n\n\n\n emit Unsubscribed(msg.sender, _cdpId);\n\n }\n\n\n\n /// @notice Returns an address that owns the CDP\n\n /// @param _cdpId Id of the CDP\n\n function getOwner(uint _cdpId) public view returns(address) {\n\n return manager.owns(_cdpId);\n\n }\n\n\n\n /// @notice Helper method for the front to get all the info about the subscribed CDP\n\n function getSubscribedInfo(uint _cdpId) public view returns(bool, uint128, uint128, uint128, uint128, address, uint coll, uint debt) {\n\n SubPosition memory subInfo = subscribersPos[_cdpId];\n\n\n\n if (!subInfo.subscribed) return (false, 0, 0, 0, 0, address(0), 0, 0);\n\n\n\n (coll, debt) = saverProxy.getCdpInfo(manager, _cdpId, manager.ilks(_cdpId));\n\n\n\n CdpHolder memory subscriber = subscribers[subInfo.arrPos];\n\n\n\n return (\n\n true,\n\n subscriber.minRatio,\n\n subscriber.maxRatio,\n\n subscriber.optimalRatioRepay,\n\n subscriber.optimalRatioBoost,\n\n subscriber.owner,\n\n coll,\n\n debt\n\n );\n\n }\n\n\n\n function getCdpHolder(uint _cdpId) public view returns (bool subscribed, CdpHolder memory) {\n\n SubPosition memory subInfo = subscribersPos[_cdpId];\n\n\n\n if (!subInfo.subscribed) return (false, CdpHolder(0, 0, 0, 0, address(0), 0, false, false));\n\n\n\n CdpHolder memory subscriber = subscribers[subInfo.arrPos];\n\n\n\n return (true, subscriber);\n\n }\n\n\n\n /// @notice Helper method for the front to get the information about the ilk of a CDP\n\n function getIlkInfo(bytes32 _ilk, uint _cdpId) public view returns(bytes32 ilk, uint art, uint rate, uint spot, uint line, uint dust, uint mat, uint par) {\n\n // send either ilk or cdpId\n\n if (_ilk == bytes32(0)) {\n\n _ilk = manager.ilks(_cdpId);\n\n }\n\n\n\n ilk = _ilk;\n\n (,mat) = spotter.ilks(_ilk);\n\n par = spotter.par();\n\n (art, rate, spot, line, dust) = vat.ilks(_ilk);\n\n }\n\n\n\n /// @notice Helper method to return all the subscribed CDPs\n\n function getSubscribers() public view returns (CdpHolder[] memory) {\n\n return subscribers;\n\n }\n\n\n\n /// @notice Helper method to return all the subscribed CDPs\n\n function getSubscribersByPage(uint _page, uint _perPage) public view returns (CdpHolder[] memory) {\n\n CdpHolder[] memory holders = new CdpHolder[](_perPage);\n\n\n\n uint start = _page * _perPage;\n\n uint end = start + _perPage;\n\n\n\n uint count = 0;\n\n for (uint i=start; i<end; i++) {\n\n holders[count] = subscribers[i];\n\n count++;\n\n }\n\n\n\n return holders;\n\n }\n\n\n\n ////////////// ADMIN METHODS ///////////////////\n\n\n\n /// @notice Admin function to change a min. limit for an asset\n\n function changeMinRatios(bytes32 _ilk, uint _newRatio) public onlyOwner {\n\n minLimits[_ilk] = _newRatio;\n\n }\n\n\n\n /// @notice Admin function to unsubscribe a CDP\n\n function unsubscribeByAdmin(uint _cdpId) public onlyOwner {\n\n SubPosition storage subInfo = subscribersPos[_cdpId];\n\n\n\n if (subInfo.subscribed) {\n\n _unsubscribe(_cdpId);\n\n }\n\n }\n\n}\n\ncontract BidProxy {\n\n\n\n address public constant DAI_JOIN = 0x9759A6Ac90977b93B58547b4A71c78317f391A28;\n\n\n\n address public constant VAT_ADDRESS = 0x35D1b3F3D7966A1DFe207aa4514C12a259A0492B;\n\n address public constant DAI_ADDRESS = 0x6B175474E89094C44Da98b954EedeAC495271d0F;\n\n\n\n function daiBid(uint _bidId, uint _amount, address _flipper) public {\n\n uint tendAmount = _amount * (10 ** 27);\n\n\n\n joinDai(_amount);\n\n\n\n (, uint lot, , , , , , ) = Flipper(_flipper).bids(_bidId);\n\n\n\n Vat(VAT_ADDRESS).hope(_flipper);\n\n\n\n Flipper(_flipper).tend(_bidId, lot, tendAmount);\n\n }\n\n\n\n function collateralBid(uint _bidId, uint _amount, address _flipper) public {\n\n (uint bid, , , , , , , ) = Flipper(_flipper).bids(_bidId);\n\n\n\n joinDai(bid / (10**27));\n\n\n\n Vat(VAT_ADDRESS).hope(_flipper);\n\n\n\n Flipper(_flipper).dent(_bidId, _amount, bid);\n\n }\n\n\n\n function closeBid(uint _bidId, address _flipper, address _joinAddr) public {\n\n bytes32 ilk = Join(_joinAddr).ilk();\n\n\n\n Flipper(_flipper).deal(_bidId);\n\n uint amount = Vat(VAT_ADDRESS).gem(ilk, address(this)) / (10**27);\n\n\n\n Vat(VAT_ADDRESS).hope(_joinAddr);\n\n Gem(_joinAddr).exit(msg.sender, amount);\n\n }\n\n\n\n function exitCollateral(address _joinAddr) public {\n\n bytes32 ilk = Join(_joinAddr).ilk();\n\n\n\n uint amount = Vat(VAT_ADDRESS).gem(ilk, address(this)) / (10**27);\n\n\n\n Vat(VAT_ADDRESS).hope(_joinAddr);\n\n Gem(_joinAddr).exit(msg.sender, amount);\n\n }\n\n\n\n function exitDai() public {\n\n uint amount = Vat(VAT_ADDRESS).dai(address(this)) / (10**27);\n\n\n\n Vat(VAT_ADDRESS).hope(DAI_JOIN);\n\n Gem(DAI_JOIN).exit(msg.sender, amount);\n\n }\n\n\n\n function withdrawToken(address _token) public {\n\n uint balance = ERC20(_token).balanceOf(address(this));\n\n ERC20(_token).transfer(msg.sender, balance);\n\n }\n\n\n\n function withdrawEth() public {\n\n uint balance = address(this).balance;\n\n msg.sender.transfer(balance);\n\n }\n\n\n\n function joinDai(uint _amount) internal {\n\n uint amountInVat = Vat(VAT_ADDRESS).dai(address(this)) / (10**27);\n\n\n\n if (_amount > amountInVat) {\n\n uint amountDiff = (_amount - amountInVat) + 1;\n\n\n\n ERC20(DAI_ADDRESS).transferFrom(msg.sender, address(this), amountDiff);\n\n ERC20(DAI_ADDRESS).approve(DAI_JOIN, amountDiff);\n\n Join(DAI_JOIN).join(address(this), amountDiff);\n\n }\n\n }\n\n}\n\nabstract contract IMCDSubscriptions {\n\n function unsubscribe(uint256 _cdpId) external virtual ;\n\n\n\n function subscribersPos(uint256 _cdpId) external virtual returns (uint256, bool);\n\n}\n\nabstract contract GemLike {\n\n function approve(address, uint256) public virtual;\n\n\n\n function transfer(address, uint256) public virtual;\n\n\n\n function transferFrom(address, address, uint256) public virtual;\n\n\n\n function deposit() public virtual payable;\n\n\n\n function withdraw(uint256) public virtual;\n\n}\n\nabstract contract ManagerLike {\n\n function cdpCan(address, uint256, address) public virtual view returns (uint256);\n\n\n\n function ilks(uint256) public virtual view returns (bytes32);\n\n\n\n function owns(uint256) public virtual view returns (address);\n\n\n\n function urns(uint256) public virtual view returns (address);\n\n\n\n function vat() public virtual view returns (address);\n\n\n\n function open(bytes32, address) public virtual returns (uint256);\n\n\n\n function give(uint256, address) public virtual;\n\n\n\n function cdpAllow(uint256, address, uint256) public virtual;\n\n\n\n function urnAllow(address, uint256) public virtual;\n\n\n\n function frob(uint256, int256, int256) public virtual;\n\n\n\n function flux(uint256, address, uint256) public virtual;\n\n\n\n function move(uint256, address, uint256) public virtual;\n\n\n\n function exit(address, uint256, address, uint256) public virtual;\n\n\n\n function quit(uint256, address) public virtual;\n\n\n\n function enter(address, uint256) public virtual;\n\n\n\n function shift(uint256, uint256) public virtual;\n\n}\n\nabstract contract VatLike {\n\n function can(address, address) public virtual view returns (uint256);\n\n\n\n function ilks(bytes32) public virtual view returns (uint256, uint256, uint256, uint256, uint256);\n\n\n\n function dai(address) public virtual view returns (uint256);\n\n\n\n function urns(bytes32, address) public virtual view returns (uint256, uint256);\n\n\n\n function frob(bytes32, address, address, address, int256, int256) public virtual;\n\n\n\n function hope(address) public virtual;\n\n\n\n function move(address, address, uint256) public virtual;\n\n}\n\nabstract contract GemJoinLike {\n\n function dec() public virtual returns (uint256);\n\n\n\n function gem() public virtual returns (GemLike);\n\n\n\n function join(address, uint256) public virtual payable;\n\n\n\n function exit(address, uint256) public virtual;\n\n}\n\nabstract contract GNTJoinLike {\n\n function bags(address) public virtual view returns (address);\n\n\n\n function make(address) public virtual returns (address);\n\n}\n\nabstract contract DaiJoinLike {\n\n function vat() public virtual returns (VatLike);\n\n\n\n function dai() public virtual returns (GemLike);\n\n\n\n function join(address, uint256) public virtual payable;\n\n\n\n function exit(address, uint256) public virtual;\n\n}\n\nabstract contract HopeLike {\n\n function hope(address) public virtual;\n\n\n\n function nope(address) public virtual;\n\n}\n\nabstract contract ProxyRegistryInterface {\n\n function build(address) public virtual returns (address);\n\n}\n\nabstract contract EndLike {\n\n function fix(bytes32) public virtual view returns (uint256);\n\n\n\n function cash(bytes32, uint256) public virtual;\n\n\n\n function free(bytes32) public virtual;\n\n\n\n function pack(uint256) public virtual;\n\n\n\n function skim(bytes32, address) public virtual;\n\n}\n\nabstract contract JugLike {\n\n function drip(bytes32) public virtual returns (uint256);\n\n}\n\nabstract contract PotLike {\n\n function pie(address) public virtual view returns (uint256);\n\n\n\n function drip() public virtual returns (uint256);\n\n\n\n function join(uint256) public virtual;\n\n\n\n function exit(uint256) public virtual;\n\n}\n\nabstract contract ProxyRegistryLike {\n\n function proxies(address) public virtual view returns (address);\n\n\n\n function build(address) public virtual returns (address);\n\n}\n\nabstract contract ProxyLike {\n\n function owner() public virtual view returns (address);\n\n}\n\ncontract Common {\n\n uint256 constant RAY = 10**27;\n\n\n\n // Internal functions\n\n\n\n function mul(uint256 x, uint256 y) internal pure returns (uint256 z) {\n\n require(y == 0 || (z = x * y) / y == x, \"mul-overflow\");\n\n }\n\n\n\n // Public functions\n\n // solhint-disable-next-line func-name-mixedcase\n\n function daiJoin_join(address apt, address urn, uint256 wad) public {\n\n // Gets DAI from the user's wallet\n\n DaiJoinLike(apt).dai().transferFrom(msg.sender, address(this), wad);\n\n // Approves adapter to take the DAI amount\n\n DaiJoinLike(apt).dai().approve(apt, wad);\n\n // Joins DAI into the vat\n\n DaiJoinLike(apt).join(urn, wad);\n\n }\n\n}\n\ncontract MCDCreateProxyActions is Common {\n\n // Internal functions\n\n\n\n function sub(uint256 x, uint256 y) internal pure returns (uint256 z) {\n\n require((z = x - y) <= x, \"sub-overflow\");\n\n }\n\n\n\n function toInt(uint256 x) internal pure returns (int256 y) {\n\n y = int256(x);\n\n require(y >= 0, \"int-overflow\");\n\n }\n\n\n\n function toRad(uint256 wad) internal pure returns (uint256 rad) {\n\n rad = mul(wad, 10**27);\n\n }\n\n\n\n function convertTo18(address gemJoin, uint256 amt) internal returns (uint256 wad) {\n\n // For those collaterals that have less than 18 decimals precision we need to do the conversion before passing to frob function\n\n // Adapters will automatically handle the difference of precision\n\n wad = mul(amt, 10**(18 - GemJoinLike(gemJoin).dec()));\n\n }\n\n\n\n function _getDrawDart(address vat, address jug, address urn, bytes32 ilk, uint256 wad)\n\n internal\n\n returns (int256 dart)\n\n {\n\n // Updates stability fee rate\n\n uint256 rate = JugLike(jug).drip(ilk);\n\n\n\n // Gets DAI balance of the urn in the vat\n\n uint256 dai = VatLike(vat).dai(urn);\n\n\n\n // If there was already enough DAI in the vat balance, just exits it without adding more debt\n\n if (dai < mul(wad, RAY)) {\n\n // Calculates the needed dart so together with the existing dai in the vat is enough to exit wad amount of DAI tokens\n\n dart = toInt(sub(mul(wad, RAY), dai) / rate);\n\n // This is neeeded due lack of precision. It might need to sum an extra dart wei (for the given DAI wad amount)\n\n dart = mul(uint256(dart), rate) < mul(wad, RAY) ? dart + 1 : dart;\n\n }\n\n }\n\n\n\n function _getWipeDart(address vat, uint256 dai, address urn, bytes32 ilk)\n\n internal\n\n view\n\n returns (int256 dart)\n\n {\n\n // Gets actual rate from the vat\n\n (, uint256 rate, , , ) = VatLike(vat).ilks(ilk);\n\n // Gets actual art value of the urn\n\n (, uint256 art) = VatLike(vat).urns(ilk, urn);\n\n\n\n // Uses the whole dai balance in the vat to reduce the debt\n\n dart = toInt(dai / rate);\n\n // Checks the calculated dart is not higher than urn.art (total debt), otherwise uses its value\n\n dart = uint256(dart) <= art ? -dart : -toInt(art);\n\n }\n\n\n\n function _getWipeAllWad(address vat, address usr, address urn, bytes32 ilk)\n\n internal\n\n view\n\n returns (uint256 wad)\n\n {\n\n // Gets actual rate from the vat\n\n (, uint256 rate, , , ) = VatLike(vat).ilks(ilk);\n\n // Gets actual art value of the urn\n\n (, uint256 art) = VatLike(vat).urns(ilk, urn);\n\n // Gets actual dai amount in the urn\n\n uint256 dai = VatLike(vat).dai(usr);\n\n\n\n uint256 rad = sub(mul(art, rate), dai);\n\n wad = rad / RAY;\n\n\n\n // If the rad precision has some dust, it will need to request for 1 extra wad wei\n\n wad = mul(wad, RAY) < rad ? wad + 1 : wad;\n\n }\n\n\n\n // Public functions\n\n\n\n function transfer(address gem, address dst, uint256 wad) public {\n\n GemLike(gem).transfer(dst, wad);\n\n }\n\n\n\n // solhint-disable-next-line func-name-mixedcase\n\n function ethJoin_join(address apt, address urn) public payable {\n\n // Wraps ETH in WETH\n\n GemJoinLike(apt).gem().deposit{value: msg.value}();\n\n // Approves adapter to take the WETH amount\n\n GemJoinLike(apt).gem().approve(address(apt), msg.value);\n\n // Joins WETH collateral into the vat\n\n GemJoinLike(apt).join(urn, msg.value);\n\n }\n\n\n\n // solhint-disable-next-line func-name-mixedcase\n\n function gemJoin_join(address apt, address urn, uint256 wad, bool transferFrom) public {\n\n // Only executes for tokens that have approval/transferFrom implementation\n\n if (transferFrom) {\n\n // Gets token from the user's wallet\n\n GemJoinLike(apt).gem().transferFrom(msg.sender, address(this), wad);\n\n // Approves adapter to take the token amount\n\n GemJoinLike(apt).gem().approve(apt, 0);\n\n GemJoinLike(apt).gem().approve(apt, wad);\n\n }\n\n // Joins token collateral into the vat\n\n GemJoinLike(apt).join(urn, wad);\n\n }\n\n\n\n function hope(address obj, address usr) public {\n\n HopeLike(obj).hope(usr);\n\n }\n\n\n\n function nope(address obj, address usr) public {\n\n HopeLike(obj).nope(usr);\n\n }\n\n\n\n function open(address manager, bytes32 ilk, address usr) public returns (uint256 cdp) {\n\n cdp = ManagerLike(manager).open(ilk, usr);\n\n }\n\n\n\n function give(address manager, uint256 cdp, address usr) public {\n\n ManagerLike(manager).give(cdp, usr);\n\n }\n\n\n\n function move(address manager, uint256 cdp, address dst, uint256 rad) public {\n\n ManagerLike(manager).move(cdp, dst, rad);\n\n }\n\n\n\n function frob(address manager, uint256 cdp, int256 dink, int256 dart) public {\n\n ManagerLike(manager).frob(cdp, dink, dart);\n\n }\n\n\n\n function lockETH(address manager, address ethJoin, uint256 cdp) public payable {\n\n // Receives ETH amount, converts it to WETH and joins it into the vat\n\n ethJoin_join(ethJoin, address(this));\n\n // Locks WETH amount into the CDP\n\n VatLike(ManagerLike(manager).vat()).frob(\n\n ManagerLike(manager).ilks(cdp),\n\n ManagerLike(manager).urns(cdp),\n\n address(this),\n\n address(this),\n\n toInt(msg.value),\n\n 0\n\n );\n\n }\n\n\n\n function lockGem(address manager, address gemJoin, uint256 cdp, uint256 wad, bool transferFrom)\n\n public\n\n {\n\n // Takes token amount from user's wallet and joins into the vat\n\n gemJoin_join(gemJoin, address(this), wad, transferFrom);\n\n // Locks token amount into the CDP\n\n VatLike(ManagerLike(manager).vat()).frob(\n\n ManagerLike(manager).ilks(cdp),\n\n ManagerLike(manager).urns(cdp),\n\n address(this),\n\n address(this),\n\n toInt(convertTo18(gemJoin, wad)),\n\n 0\n\n );\n\n }\n\n\n\n function draw(address manager, address jug, address daiJoin, uint256 cdp, uint256 wad) public {\n\n address urn = ManagerLike(manager).urns(cdp);\n\n address vat = ManagerLike(manager).vat();\n\n bytes32 ilk = ManagerLike(manager).ilks(cdp);\n\n // Generates debt in the CDP\n\n frob(manager, cdp, 0, _getDrawDart(vat, jug, urn, ilk, wad));\n\n // Moves the DAI amount (balance in the vat in rad) to proxy's address\n\n move(manager, cdp, address(this), toRad(wad));\n\n // Allows adapter to access to proxy's DAI balance in the vat\n\n if (VatLike(vat).can(address(this), address(daiJoin)) == 0) {\n\n VatLike(vat).hope(daiJoin);\n\n }\n\n // Exits DAI to the user's wallet as a token\n\n DaiJoinLike(daiJoin).exit(msg.sender, wad);\n\n }\n\n\n\n function lockETHAndDraw(\n\n address manager,\n\n address jug,\n\n address ethJoin,\n\n address daiJoin,\n\n uint256 cdp,\n\n uint256 wadD\n\n ) public payable {\n\n address urn = ManagerLike(manager).urns(cdp);\n\n address vat = ManagerLike(manager).vat();\n\n bytes32 ilk = ManagerLike(manager).ilks(cdp);\n\n // Receives ETH amount, converts it to WETH and joins it into the vat\n\n ethJoin_join(ethJoin, urn);\n\n // Locks WETH amount into the CDP and generates debt\n\n frob(manager, cdp, toInt(msg.value), _getDrawDart(vat, jug, urn, ilk, wadD));\n\n // Moves the DAI amount (balance in the vat in rad) to proxy's address\n\n move(manager, cdp, address(this), toRad(wadD));\n\n // Allows adapter to access to proxy's DAI balance in the vat\n\n if (VatLike(vat).can(address(this), address(daiJoin)) == 0) {\n\n VatLike(vat).hope(daiJoin);\n\n }\n\n // Exits DAI to the user's wallet as a token\n\n DaiJoinLike(daiJoin).exit(msg.sender, wadD);\n\n }\n\n\n\n function openLockETHAndDraw(\n\n address manager,\n\n address jug,\n\n address ethJoin,\n\n address daiJoin,\n\n bytes32 ilk,\n\n uint256 wadD,\n\n address owner\n\n ) public payable returns (uint256 cdp) {\n\n cdp = open(manager, ilk, address(this));\n\n lockETHAndDraw(manager, jug, ethJoin, daiJoin, cdp, wadD);\n\n give(manager, cdp, owner);\n\n }\n\n\n\n function lockGemAndDraw(\n\n address manager,\n\n address jug,\n\n address gemJoin,\n\n address daiJoin,\n\n uint256 cdp,\n\n uint256 wadC,\n\n uint256 wadD,\n\n bool transferFrom\n\n ) public {\n\n address urn = ManagerLike(manager).urns(cdp);\n\n address vat = ManagerLike(manager).vat();\n\n bytes32 ilk = ManagerLike(manager).ilks(cdp);\n\n // Takes token amount from user's wallet and joins into the vat\n\n gemJoin_join(gemJoin, urn, wadC, transferFrom);\n\n // Locks token amount into the CDP and generates debt\n\n frob(\n\n manager,\n\n cdp,\n\n toInt(convertTo18(gemJoin, wadC)),\n\n _getDrawDart(vat, jug, urn, ilk, wadD)\n\n );\n\n // Moves the DAI amount (balance in the vat in rad) to proxy's address\n\n move(manager, cdp, address(this), toRad(wadD));\n\n // Allows adapter to access to proxy's DAI balance in the vat\n\n if (VatLike(vat).can(address(this), address(daiJoin)) == 0) {\n\n VatLike(vat).hope(daiJoin);\n\n }\n\n // Exits DAI to the user's wallet as a token\n\n DaiJoinLike(daiJoin).exit(msg.sender, wadD);\n\n }\n\n\n\n function openLockGemAndDraw(\n\n address manager,\n\n address jug,\n\n address gemJoin,\n\n address daiJoin,\n\n bytes32 ilk,\n\n uint256 wadC,\n\n uint256 wadD,\n\n bool transferFrom,\n\n address owner\n\n ) public returns (uint256 cdp) {\n\n cdp = open(manager, ilk, address(this));\n\n lockGemAndDraw(manager, jug, gemJoin, daiJoin, cdp, wadC, wadD, transferFrom);\n\n give(manager, cdp, owner);\n\n }\n\n}\n\ncontract MCDCreateTaker {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n address payable public constant MCD_CREATE_FLASH_LOAN = 0x71eC9a4fCE561c3936a511D9ebb05B60CF2bA519;\n\n\n\n address public constant DAI_ADDRESS = 0x6B175474E89094C44Da98b954EedeAC495271d0F;\n\n address public constant ETH_JOIN_ADDRESS = 0x2F0b23f53734252Bda2277357e97e1517d6B042A;\n\n\n\n ILendingPool public constant lendingPool = ILendingPool(0x398eC7346DcD622eDc5ae82352F02bE94C62d119);\n\n\n\n // solhint-disable-next-line const-name-snakecase\n\n Manager public constant manager = Manager(0x5ef30b9986345249bc32d8928B7ee64DE9435E39);\n\n\n\n // solhint-disable-next-line const-name-snakecase\n\n DefisaverLogger public constant logger = DefisaverLogger(0x5c55B921f590a89C1Ebe84dF170E655a82b62126);\n\n\n\n struct CreateData {\n\n uint collAmount;\n\n uint daiAmount;\n\n address joinAddr;\n\n }\n\n\n\n function openWithLoan(\n\n SaverExchangeCore.ExchangeData memory _exchangeData,\n\n CreateData memory _createData\n\n ) public payable {\n\n\n\n MCD_CREATE_FLASH_LOAN.transfer(msg.value); //0x fee\n\n\n\n\n\n if (_createData.joinAddr != ETH_JOIN_ADDRESS) {\n\n ERC20(getCollateralAddr(_createData.joinAddr)).safeTransferFrom(msg.sender, address(this), _createData.collAmount);\n\n ERC20(getCollateralAddr(_createData.joinAddr)).safeTransfer(MCD_CREATE_FLASH_LOAN, _createData.collAmount);\n\n }\n\n\n\n (uint[6] memory numData, address[5] memory addrData, bytes memory callData)\n\n = _packData(_createData, _exchangeData);\n\n bytes memory paramsData = abi.encode(numData, addrData, callData, address(this));\n\n\n\n lendingPool.flashLoan(MCD_CREATE_FLASH_LOAN, DAI_ADDRESS, _createData.daiAmount, paramsData);\n\n\n\n logger.Log(address(this), msg.sender, \"MCDCreate\", abi.encode(manager.last(address(this)), _createData.collAmount, _createData.daiAmount));\n\n }\n\n\n\n function getCollateralAddr(address _joinAddr) internal view returns (address) {\n\n return address(Join(_joinAddr).gem());\n\n }\n\n\n\n function _packData(\n\n CreateData memory _createData,\n\n SaverExchangeCore.ExchangeData memory exchangeData\n\n ) internal pure returns (uint[6] memory numData, address[5] memory addrData, bytes memory callData) {\n\n\n\n numData = [\n\n _createData.collAmount,\n\n _createData.daiAmount,\n\n exchangeData.srcAmount,\n\n exchangeData.destAmount,\n\n exchangeData.minPrice,\n\n exchangeData.price0x\n\n ];\n\n\n\n addrData = [\n\n exchangeData.srcAddr,\n\n exchangeData.destAddr,\n\n exchangeData.exchangeAddr,\n\n exchangeData.wrapper,\n\n _createData.joinAddr\n\n ];\n\n\n\n callData = exchangeData.callData;\n\n }\n\n}\n\nabstract contract GemLike {\n\n function approve(address, uint) virtual public;\n\n function transfer(address, uint) virtual public;\n\n function transferFrom(address, address, uint) virtual public;\n\n function deposit() virtual public payable;\n\n function withdraw(uint) virtual public;\n\n}\n\nabstract contract ManagerLike {\n\n function cdpCan(address, uint, address) virtual public view returns (uint);\n\n function ilks(uint) virtual public view returns (bytes32);\n\n function owns(uint) virtual public view returns (address);\n\n function urns(uint) virtual public view returns (address);\n\n function vat() virtual public view returns (address);\n\n function open(bytes32, address) virtual public returns (uint);\n\n function give(uint, address) virtual public;\n\n function cdpAllow(uint, address, uint) virtual public;\n\n function urnAllow(address, uint) virtual public;\n\n function frob(uint, int, int) virtual public;\n\n function flux(uint, address, uint) virtual public;\n\n function move(uint, address, uint) virtual public;\n\n function exit(address, uint, address, uint) virtual public;\n\n function quit(uint, address) virtual public;\n\n function enter(address, uint) virtual public;\n\n function shift(uint, uint) virtual public;\n\n}\n\nabstract contract VatLike {\n\n function can(address, address) virtual public view returns (uint);\n\n function ilks(bytes32) virtual public view returns (uint, uint, uint, uint, uint);\n\n function dai(address) virtual public view returns (uint);\n\n function urns(bytes32, address) virtual public view returns (uint, uint);\n\n function frob(bytes32, address, address, address, int, int) virtual public;\n\n function hope(address) virtual public;\n\n function move(address, address, uint) virtual public;\n\n}\n\nabstract contract GemJoinLike {\n\n function dec() virtual public returns (uint);\n\n function gem() virtual public returns (GemLike);\n\n function join(address, uint) virtual public payable;\n\n function exit(address, uint) virtual public;\n\n}\n\nabstract contract GNTJoinLike {\n\n function bags(address) virtual public view returns (address);\n\n function make(address) virtual public returns (address);\n\n}\n\nabstract contract DaiJoinLike {\n\n function vat() virtual public returns (VatLike);\n\n function dai() virtual public returns (GemLike);\n\n function join(address, uint) virtual public payable;\n\n function exit(address, uint) virtual public;\n\n}\n\nabstract contract HopeLike {\n\n function hope(address) virtual public;\n\n function nope(address) virtual public;\n\n}\n\nabstract contract ProxyRegistryInterface {\n\n function proxies(address _owner) virtual public view returns (address);\n\n function build(address) virtual public returns (address);\n\n}\n\nabstract contract EndLike {\n\n function fix(bytes32) virtual public view returns (uint);\n\n function cash(bytes32, uint) virtual public;\n\n function free(bytes32) virtual public;\n\n function pack(uint) virtual public;\n\n function skim(bytes32, address) virtual public;\n\n}\n\nabstract contract JugLike {\n\n function drip(bytes32) virtual public returns (uint);\n\n}\n\nabstract contract PotLike {\n\n function pie(address) virtual public view returns (uint);\n\n function drip() virtual public returns (uint);\n\n function join(uint) virtual public;\n\n function exit(uint) virtual public;\n\n}\n\nabstract contract ProxyRegistryLike {\n\n function proxies(address) virtual public view returns (address);\n\n function build(address) virtual public returns (address);\n\n}\n\nabstract contract ProxyLike {\n\n function owner() virtual public view returns (address);\n\n}\n\nabstract contract DSProxy {\n\n function execute(address _target, bytes memory _data) virtual public payable returns (bytes32);\n\n function setOwner(address owner_) virtual public;\n\n}\n\ncontract Common {\n\n uint256 constant RAY = 10 ** 27;\n\n\n\n // Internal functions\n\n\n\n function mul(uint x, uint y) internal pure returns (uint z) {\n\n require(y == 0 || (z = x * y) / y == x, \"mul-overflow\");\n\n }\n\n\n\n // Public functions\n\n\n\n function daiJoin_join(address apt, address urn, uint wad) public {\n\n // Gets DAI from the user's wallet\n\n DaiJoinLike(apt).dai().transferFrom(msg.sender, address(this), wad);\n\n // Approves adapter to take the DAI amount\n\n DaiJoinLike(apt).dai().approve(apt, wad);\n\n // Joins DAI into the vat\n\n DaiJoinLike(apt).join(urn, wad);\n\n }\n\n}\n\ncontract SaverProxyActions is Common {\n\n\n\n\n\n event CDPAction(string indexed, uint indexed, uint, uint);\n\n\n\n // Internal functions\n\n\n\n function sub(uint x, uint y) internal pure returns (uint z) {\n\n require((z = x - y) <= x, \"sub-overflow\");\n\n }\n\n\n\n function toInt(uint x) internal pure returns (int y) {\n\n y = int(x);\n\n require(y >= 0, \"int-overflow\");\n\n }\n\n\n\n function toRad(uint wad) internal pure returns (uint rad) {\n\n rad = mul(wad, 10 ** 27);\n\n }\n\n\n\n function convertTo18(address gemJoin, uint256 amt) internal returns (uint256 wad) {\n\n // For those collaterals that have less than 18 decimals precision we need to do the conversion before passing to frob function\n\n // Adapters will automatically handle the difference of precision\n\n wad = mul(\n\n amt,\n\n 10 ** (18 - GemJoinLike(gemJoin).dec())\n\n );\n\n }\n\n\n\n function _getDrawDart(\n\n address vat,\n\n address jug,\n\n address urn,\n\n bytes32 ilk,\n\n uint wad\n\n ) internal returns (int dart) {\n\n // Updates stability fee rate\n\n uint rate = JugLike(jug).drip(ilk);\n\n\n\n // Gets DAI balance of the urn in the vat\n\n uint dai = VatLike(vat).dai(urn);\n\n\n\n // If there was already enough DAI in the vat balance, just exits it without adding more debt\n\n if (dai < mul(wad, RAY)) {\n\n // Calculates the needed dart so together with the existing dai in the vat is enough to exit wad amount of DAI tokens\n\n dart = toInt(sub(mul(wad, RAY), dai) / rate);\n\n // This is neeeded due lack of precision. It might need to sum an extra dart wei (for the given DAI wad amount)\n\n dart = mul(uint(dart), rate) < mul(wad, RAY) ? dart + 1 : dart;\n\n }\n\n }\n\n\n\n function _getWipeDart(\n\n address vat,\n\n uint dai,\n\n address urn,\n\n bytes32 ilk\n\n ) internal view returns (int dart) {\n\n // Gets actual rate from the vat\n\n (, uint rate,,,) = VatLike(vat).ilks(ilk);\n\n // Gets actual art value of the urn\n\n (, uint art) = VatLike(vat).urns(ilk, urn);\n\n\n\n // Uses the whole dai balance in the vat to reduce the debt\n\n dart = toInt(dai / rate);\n\n // Checks the calculated dart is not higher than urn.art (total debt), otherwise uses its value\n\n dart = uint(dart) <= art ? - dart : - toInt(art);\n\n }\n\n\n\n function _getWipeAllWad(\n\n address vat,\n\n address usr,\n\n address urn,\n\n bytes32 ilk\n\n ) internal view returns (uint wad) {\n\n // Gets actual rate from the vat\n\n (, uint rate,,,) = VatLike(vat).ilks(ilk);\n\n // Gets actual art value of the urn\n\n (, uint art) = VatLike(vat).urns(ilk, urn);\n\n // Gets actual dai amount in the urn\n\n uint dai = VatLike(vat).dai(usr);\n\n\n\n uint rad = sub(mul(art, rate), dai);\n\n wad = rad / RAY;\n\n\n\n // If the rad precision has some dust, it will need to request for 1 extra wad wei\n\n wad = mul(wad, RAY) < rad ? wad + 1 : wad;\n\n }\n\n\n\n // Public functions\n\n\n\n function transfer(address gem, address dst, uint wad) public {\n\n GemLike(gem).transfer(dst, wad);\n\n }\n\n\n\n function ethJoin_join(address apt, address urn) public payable {\n\n // Wraps ETH in WETH\n\n GemJoinLike(apt).gem().deposit{value: msg.value}();\n\n // Approves adapter to take the WETH amount\n\n GemJoinLike(apt).gem().approve(address(apt), msg.value);\n\n // Joins WETH collateral into the vat\n\n GemJoinLike(apt).join(urn, msg.value);\n\n }\n\n\n\n function gemJoin_join(address apt, address urn, uint wad, bool transferFrom) public {\n\n // Only executes for tokens that have approval/transferFrom implementation\n\n if (transferFrom) {\n\n // Gets token from the user's wallet\n\n GemJoinLike(apt).gem().transferFrom(msg.sender, address(this), wad);\n\n // Approves adapter to take the token amount\n\n GemJoinLike(apt).gem().approve(apt, 0);\n\n GemJoinLike(apt).gem().approve(apt, wad);\n\n }\n\n // Joins token collateral into the vat\n\n GemJoinLike(apt).join(urn, wad);\n\n }\n\n\n\n function hope(\n\n address obj,\n\n address usr\n\n ) public {\n\n HopeLike(obj).hope(usr);\n\n }\n\n\n\n function nope(\n\n address obj,\n\n address usr\n\n ) public {\n\n HopeLike(obj).nope(usr);\n\n }\n\n\n\n function open(\n\n address manager,\n\n bytes32 ilk,\n\n address usr\n\n ) public returns (uint cdp) {\n\n cdp = ManagerLike(manager).open(ilk, usr);\n\n }\n\n\n\n function give(\n\n address manager,\n\n uint cdp,\n\n address usr\n\n ) public {\n\n ManagerLike(manager).give(cdp, usr);\n\n\n\n emit CDPAction('give', cdp, 0, 0);\n\n }\n\n\n\n function giveToProxy(\n\n address proxyRegistry,\n\n address manager,\n\n uint cdp,\n\n address dst\n\n ) public {\n\n // Gets actual proxy address\n\n address proxy = ProxyRegistryLike(proxyRegistry).proxies(dst);\n\n // Checks if the proxy address already existed and dst address is still the owner\n\n if (proxy == address(0) || ProxyLike(proxy).owner() != dst) {\n\n uint csize;\n\n assembly {\n\n csize := extcodesize(dst)\n\n }\n\n // We want to avoid creating a proxy for a contract address that might not be able to handle proxies, then losing the CDP\n\n require(csize == 0, \"Dst-is-a-contract\");\n\n // Creates the proxy for the dst address\n\n proxy = ProxyRegistryLike(proxyRegistry).build(dst);\n\n }\n\n // Transfers CDP to the dst proxy\n\n give(manager, cdp, proxy);\n\n }\n\n\n\n function cdpAllow(\n\n address manager,\n\n uint cdp,\n\n address usr,\n\n uint ok\n\n ) public {\n\n ManagerLike(manager).cdpAllow(cdp, usr, ok);\n\n }\n\n\n\n function urnAllow(\n\n address manager,\n\n address usr,\n\n uint ok\n\n ) public {\n\n ManagerLike(manager).urnAllow(usr, ok);\n\n }\n\n\n\n function flux(\n\n address manager,\n\n uint cdp,\n\n address dst,\n\n uint wad\n\n ) public {\n\n ManagerLike(manager).flux(cdp, dst, wad);\n\n }\n\n\n\n function move(\n\n address manager,\n\n uint cdp,\n\n address dst,\n\n uint rad\n\n ) public {\n\n ManagerLike(manager).move(cdp, dst, rad);\n\n }\n\n\n\n function frob(\n\n address manager,\n\n uint cdp,\n\n int dink,\n\n int dart\n\n ) public {\n\n ManagerLike(manager).frob(cdp, dink, dart);\n\n }\n\n\n\n function quit(\n\n address manager,\n\n uint cdp,\n\n address dst\n\n ) public {\n\n ManagerLike(manager).quit(cdp, dst);\n\n }\n\n\n\n function enter(\n\n address manager,\n\n address src,\n\n uint cdp\n\n ) public {\n\n ManagerLike(manager).enter(src, cdp);\n\n }\n\n\n\n function shift(\n\n address manager,\n\n uint cdpSrc,\n\n uint cdpOrg\n\n ) public {\n\n ManagerLike(manager).shift(cdpSrc, cdpOrg);\n\n }\n\n\n\n function makeGemBag(\n\n address gemJoin\n\n ) public returns (address bag) {\n\n bag = GNTJoinLike(gemJoin).make(address(this));\n\n }\n\n\n\n function lockETH(\n\n address manager,\n\n address ethJoin,\n\n uint cdp\n\n ) public payable {\n\n // Receives ETH amount, converts it to WETH and joins it into the vat\n\n ethJoin_join(ethJoin, address(this));\n\n // Locks WETH amount into the CDP\n\n VatLike(ManagerLike(manager).vat()).frob(\n\n ManagerLike(manager).ilks(cdp),\n\n ManagerLike(manager).urns(cdp),\n\n address(this),\n\n address(this),\n\n toInt(msg.value),\n\n 0\n\n );\n\n\n\n emit CDPAction('lockETH', cdp, msg.value, 0);\n\n }\n\n\n\n function lockGem(\n\n address manager,\n\n address gemJoin,\n\n uint cdp,\n\n uint wad,\n\n bool transferFrom\n\n ) public {\n\n // Takes token amount from user's wallet and joins into the vat\n\n gemJoin_join(gemJoin, address(this), wad, transferFrom);\n\n // Locks token amount into the CDP\n\n VatLike(ManagerLike(manager).vat()).frob(\n\n ManagerLike(manager).ilks(cdp),\n\n ManagerLike(manager).urns(cdp),\n\n address(this),\n\n address(this),\n\n toInt(convertTo18(gemJoin, wad)),\n\n 0\n\n );\n\n\n\n emit CDPAction('lockGem', cdp, wad, 0);\n\n }\n\n\n\n function freeETH(\n\n address manager,\n\n address ethJoin,\n\n uint cdp,\n\n uint wad\n\n ) public {\n\n // Unlocks WETH amount from the CDP\n\n frob(manager, cdp, -toInt(wad), 0);\n\n // Moves the amount from the CDP urn to proxy's address\n\n flux(manager, cdp, address(this), wad);\n\n // Exits WETH amount to proxy address as a token\n\n GemJoinLike(ethJoin).exit(address(this), wad);\n\n // Converts WETH to ETH\n\n GemJoinLike(ethJoin).gem().withdraw(wad);\n\n // Sends ETH back to the user's wallet\n\n msg.sender.transfer(wad);\n\n\n\n emit CDPAction('freeETH', cdp, wad, 0);\n\n }\n\n\n\n function freeGem(\n\n address manager,\n\n address gemJoin,\n\n uint cdp,\n\n uint wad\n\n ) public {\n\n uint wad18 = convertTo18(gemJoin, wad);\n\n // Unlocks token amount from the CDP\n\n frob(manager, cdp, -toInt(wad18), 0);\n\n // Moves the amount from the CDP urn to proxy's address\n\n flux(manager, cdp, address(this), wad18);\n\n // Exits token amount to the user's wallet as a token\n\n GemJoinLike(gemJoin).exit(msg.sender, wad);\n\n\n\n emit CDPAction('freeGem', cdp, wad, 0);\n\n }\n\n\n\n function exitETH(\n\n address manager,\n\n address ethJoin,\n\n uint cdp,\n\n uint wad\n\n ) public {\n\n // Moves the amount from the CDP urn to proxy's address\n\n flux(manager, cdp, address(this), wad);\n\n\n\n // Exits WETH amount to proxy address as a token\n\n GemJoinLike(ethJoin).exit(address(this), wad);\n\n // Converts WETH to ETH\n\n GemJoinLike(ethJoin).gem().withdraw(wad);\n\n // Sends ETH back to the user's wallet\n\n msg.sender.transfer(wad);\n\n }\n\n\n\n function exitGem(\n\n address manager,\n\n address gemJoin,\n\n uint cdp,\n\n uint wad\n\n ) public {\n\n // Moves the amount from the CDP urn to proxy's address\n\n flux(manager, cdp, address(this), convertTo18(gemJoin, wad));\n\n\n\n // Exits token amount to the user's wallet as a token\n\n GemJoinLike(gemJoin).exit(msg.sender, wad);\n\n }\n\n\n\n function draw(\n\n address manager,\n\n address jug,\n\n address daiJoin,\n\n uint cdp,\n\n uint wad\n\n ) public {\n\n address urn = ManagerLike(manager).urns(cdp);\n\n address vat = ManagerLike(manager).vat();\n\n bytes32 ilk = ManagerLike(manager).ilks(cdp);\n\n // Generates debt in the CDP\n\n frob(manager, cdp, 0, _getDrawDart(vat, jug, urn, ilk, wad));\n\n // Moves the DAI amount (balance in the vat in rad) to proxy's address\n\n move(manager, cdp, address(this), toRad(wad));\n\n // Allows adapter to access to proxy's DAI balance in the vat\n\n if (VatLike(vat).can(address(this), address(daiJoin)) == 0) {\n\n VatLike(vat).hope(daiJoin);\n\n }\n\n // Exits DAI to the user's wallet as a token\n\n DaiJoinLike(daiJoin).exit(msg.sender, wad);\n\n\n\n emit CDPAction('draw', cdp, 0, wad);\n\n }\n\n\n\n function wipe(\n\n address manager,\n\n address daiJoin,\n\n uint cdp,\n\n uint wad\n\n ) public {\n\n address vat = ManagerLike(manager).vat();\n\n address urn = ManagerLike(manager).urns(cdp);\n\n bytes32 ilk = ManagerLike(manager).ilks(cdp);\n\n\n\n address own = ManagerLike(manager).owns(cdp);\n\n if (own == address(this) || ManagerLike(manager).cdpCan(own, cdp, address(this)) == 1) {\n\n // Joins DAI amount into the vat\n\n daiJoin_join(daiJoin, urn, wad);\n\n // Paybacks debt to the CDP\n\n frob(manager, cdp, 0, _getWipeDart(vat, VatLike(vat).dai(urn), urn, ilk));\n\n } else {\n\n // Joins DAI amount into the vat\n\n daiJoin_join(daiJoin, address(this), wad);\n\n // Paybacks debt to the CDP\n\n VatLike(vat).frob(\n\n ilk,\n\n urn,\n\n address(this),\n\n address(this),\n\n 0,\n\n _getWipeDart(vat, wad * RAY, urn, ilk)\n\n );\n\n }\n\n\n\n emit CDPAction('wipe', cdp, 0, wad);\n\n }\n\n\n\n function wipeAll(\n\n address manager,\n\n address daiJoin,\n\n uint cdp\n\n ) public {\n\n address vat = ManagerLike(manager).vat();\n\n address urn = ManagerLike(manager).urns(cdp);\n\n bytes32 ilk = ManagerLike(manager).ilks(cdp);\n\n (, uint art) = VatLike(vat).urns(ilk, urn);\n\n\n\n address own = ManagerLike(manager).owns(cdp);\n\n if (own == address(this) || ManagerLike(manager).cdpCan(own, cdp, address(this)) == 1) {\n\n // Joins DAI amount into the vat\n\n daiJoin_join(daiJoin, urn, _getWipeAllWad(vat, urn, urn, ilk));\n\n // Paybacks debt to the CDP\n\n frob(manager, cdp, 0, -int(art));\n\n } else {\n\n // Joins DAI amount into the vat\n\n daiJoin_join(daiJoin, address(this), _getWipeAllWad(vat, address(this), urn, ilk));\n\n // Paybacks debt to the CDP\n\n VatLike(vat).frob(\n\n ilk,\n\n urn,\n\n address(this),\n\n address(this),\n\n 0,\n\n -int(art)\n\n );\n\n }\n\n\n\n emit CDPAction('wipeAll', cdp, 0, art);\n\n }\n\n\n\n function lockETHAndDraw(\n\n address manager,\n\n address jug,\n\n address ethJoin,\n\n address daiJoin,\n\n uint cdp,\n\n uint wadD\n\n ) public payable {\n\n address urn = ManagerLike(manager).urns(cdp);\n\n address vat = ManagerLike(manager).vat();\n\n bytes32 ilk = ManagerLike(manager).ilks(cdp);\n\n // Receives ETH amount, converts it to WETH and joins it into the vat\n\n ethJoin_join(ethJoin, urn);\n\n // Locks WETH amount into the CDP and generates debt\n\n frob(manager, cdp, toInt(msg.value), _getDrawDart(vat, jug, urn, ilk, wadD));\n\n // Moves the DAI amount (balance in the vat in rad) to proxy's address\n\n move(manager, cdp, address(this), toRad(wadD));\n\n // Allows adapter to access to proxy's DAI balance in the vat\n\n if (VatLike(vat).can(address(this), address(daiJoin)) == 0) {\n\n VatLike(vat).hope(daiJoin);\n\n }\n\n // Exits DAI to the user's wallet as a token\n\n DaiJoinLike(daiJoin).exit(msg.sender, wadD);\n\n }\n\n\n\n function openLockETHAndDraw(\n\n address manager,\n\n address jug,\n\n address ethJoin,\n\n address daiJoin,\n\n bytes32 ilk,\n\n uint wadD\n\n ) public payable returns (uint cdp) {\n\n cdp = open(manager, ilk, address(this));\n\n lockETHAndDraw(manager, jug, ethJoin, daiJoin, cdp, wadD);\n\n\n\n emit CDPAction('openLockETHAndDraw', cdp, msg.value, wadD);\n\n }\n\n\n\n function lockGemAndDraw(\n\n address manager,\n\n address jug,\n\n address gemJoin,\n\n address daiJoin,\n\n uint cdp,\n\n uint wadC,\n\n uint wadD,\n\n bool transferFrom\n\n ) public {\n\n address urn = ManagerLike(manager).urns(cdp);\n\n address vat = ManagerLike(manager).vat();\n\n bytes32 ilk = ManagerLike(manager).ilks(cdp);\n\n // Takes token amount from user's wallet and joins into the vat\n\n gemJoin_join(gemJoin, urn, wadC, transferFrom);\n\n // Locks token amount into the CDP and generates debt\n\n frob(manager, cdp, toInt(convertTo18(gemJoin, wadC)), _getDrawDart(vat, jug, urn, ilk, wadD));\n\n // Moves the DAI amount (balance in the vat in rad) to proxy's address\n\n move(manager, cdp, address(this), toRad(wadD));\n\n // Allows adapter to access to proxy's DAI balance in the vat\n\n if (VatLike(vat).can(address(this), address(daiJoin)) == 0) {\n\n VatLike(vat).hope(daiJoin);\n\n }\n\n // Exits DAI to the user's wallet as a token\n\n DaiJoinLike(daiJoin).exit(msg.sender, wadD);\n\n\n\n }\n\n\n\n function openLockGemAndDraw(\n\n address manager,\n\n address jug,\n\n address gemJoin,\n\n address daiJoin,\n\n bytes32 ilk,\n\n uint wadC,\n\n uint wadD,\n\n bool transferFrom\n\n ) public returns (uint cdp) {\n\n cdp = open(manager, ilk, address(this));\n\n lockGemAndDraw(manager, jug, gemJoin, daiJoin, cdp, wadC, wadD, transferFrom);\n\n\n\n emit CDPAction('openLockGemAndDraw', cdp, wadC, wadD);\n\n\n\n }\n\n\n\n function wipeAllAndFreeETH(\n\n address manager,\n\n address ethJoin,\n\n address daiJoin,\n\n uint cdp,\n\n uint wadC\n\n ) public {\n\n address vat = ManagerLike(manager).vat();\n\n address urn = ManagerLike(manager).urns(cdp);\n\n bytes32 ilk = ManagerLike(manager).ilks(cdp);\n\n (, uint art) = VatLike(vat).urns(ilk, urn);\n\n\n\n // Joins DAI amount into the vat\n\n daiJoin_join(daiJoin, urn, _getWipeAllWad(vat, urn, urn, ilk));\n\n // Paybacks debt to the CDP and unlocks WETH amount from it\n\n frob(\n\n manager,\n\n cdp,\n\n -toInt(wadC),\n\n -int(art)\n\n );\n\n // Moves the amount from the CDP urn to proxy's address\n\n flux(manager, cdp, address(this), wadC);\n\n // Exits WETH amount to proxy address as a token\n\n GemJoinLike(ethJoin).exit(address(this), wadC);\n\n // Converts WETH to ETH\n\n GemJoinLike(ethJoin).gem().withdraw(wadC);\n\n // Sends ETH back to the user's wallet\n\n msg.sender.transfer(wadC);\n\n\n\n emit CDPAction('wipeAllAndFreeETH', cdp, wadC, art);\n\n }\n\n\n\n function wipeAndFreeGem(\n\n address manager,\n\n address gemJoin,\n\n address daiJoin,\n\n uint cdp,\n\n uint wadC,\n\n uint wadD\n\n ) public {\n\n address urn = ManagerLike(manager).urns(cdp);\n\n // Joins DAI amount into the vat\n\n daiJoin_join(daiJoin, urn, wadD);\n\n uint wad18 = convertTo18(gemJoin, wadC);\n\n // Paybacks debt to the CDP and unlocks token amount from it\n\n frob(\n\n manager,\n\n cdp,\n\n -toInt(wad18),\n\n _getWipeDart(ManagerLike(manager).vat(), VatLike(ManagerLike(manager).vat()).dai(urn), urn, ManagerLike(manager).ilks(cdp))\n\n );\n\n // Moves the amount from the CDP urn to proxy's address\n\n flux(manager, cdp, address(this), wad18);\n\n // Exits token amount to the user's wallet as a token\n\n GemJoinLike(gemJoin).exit(msg.sender, wadC);\n\n }\n\n\n\n function wipeAllAndFreeGem(\n\n address manager,\n\n address gemJoin,\n\n address daiJoin,\n\n uint cdp,\n\n uint wadC\n\n ) public {\n\n address vat = ManagerLike(manager).vat();\n\n address urn = ManagerLike(manager).urns(cdp);\n\n bytes32 ilk = ManagerLike(manager).ilks(cdp);\n\n (, uint art) = VatLike(vat).urns(ilk, urn);\n\n\n\n // Joins DAI amount into the vat\n\n daiJoin_join(daiJoin, urn, _getWipeAllWad(vat, urn, urn, ilk));\n\n uint wad18 = convertTo18(gemJoin, wadC);\n\n // Paybacks debt to the CDP and unlocks token amount from it\n\n frob(\n\n manager,\n\n cdp,\n\n -toInt(wad18),\n\n -int(art)\n\n );\n\n // Moves the amount from the CDP urn to proxy's address\n\n flux(manager, cdp, address(this), wad18);\n\n // Exits token amount to the user's wallet as a token\n\n GemJoinLike(gemJoin).exit(msg.sender, wadC);\n\n\n\n emit CDPAction('wipeAllAndFreeGem', cdp, wadC, art);\n\n }\n\n\n\n function createProxyAndCDP(\n\n address manager,\n\n address jug,\n\n address ethJoin,\n\n address daiJoin,\n\n bytes32 ilk,\n\n uint wadD,\n\n address registry\n\n ) public payable returns(uint) {\n\n\n\n address proxy = ProxyRegistryInterface(registry).build(msg.sender);\n\n\n\n uint cdp = openLockETHAndDraw(manager,\n\n jug,\n\n ethJoin,\n\n daiJoin,\n\n ilk,\n\n wadD\n\n );\n\n\n\n give(manager, cdp, address(proxy));\n\n\n\n return cdp;\n\n\n\n }\n\n\n\n function createProxyAndGemCDP(\n\n address manager,\n\n address jug,\n\n address gemJoin,\n\n address daiJoin,\n\n bytes32 ilk,\n\n uint wadC,\n\n uint wadD,\n\n bool transferFrom,\n\n address registry\n\n ) public returns(uint) {\n\n\n\n\n\n address proxy = ProxyRegistryInterface(registry).build(msg.sender);\n\n\n\n uint cdp = openLockGemAndDraw(manager,\n\n jug,\n\n gemJoin,\n\n daiJoin,\n\n ilk,\n\n wadC,\n\n wadD,\n\n transferFrom);\n\n\n\n give(manager, cdp, address(proxy));\n\n\n\n return cdp;\n\n }\n\n}\n\ncontract MCDSaverProxyHelper is DSMath {\n\n\n\n /// @notice Returns a normalized debt _amount based on the current rate\n\n /// @param _amount Amount of dai to be normalized\n\n /// @param _rate Current rate of the stability fee\n\n /// @param _daiVatBalance Balance od Dai in the Vat for that CDP\n\n function normalizeDrawAmount(uint _amount, uint _rate, uint _daiVatBalance) internal pure returns (int dart) {\n\n if (_daiVatBalance < mul(_amount, RAY)) {\n\n dart = toPositiveInt(sub(mul(_amount, RAY), _daiVatBalance) / _rate);\n\n dart = mul(uint(dart), _rate) < mul(_amount, RAY) ? dart + 1 : dart;\n\n }\n\n }\n\n\n\n /// @notice Converts a number to Rad percision\n\n /// @param _wad The input number in wad percision\n\n function toRad(uint _wad) internal pure returns (uint) {\n\n return mul(_wad, 10 ** 27);\n\n }\n\n\n\n /// @notice Converts a number to 18 decimal percision\n\n /// @param _joinAddr Join address of the collateral\n\n /// @param _amount Number to be converted\n\n function convertTo18(address _joinAddr, uint256 _amount) internal view returns (uint256) {\n\n return mul(_amount, 10 ** (18 - Join(_joinAddr).dec()));\n\n }\n\n\n\n /// @notice Converts a uint to int and checks if positive\n\n /// @param _x Number to be converted\n\n function toPositiveInt(uint _x) internal pure returns (int y) {\n\n y = int(_x);\n\n require(y >= 0, \"int-overflow\");\n\n }\n\n\n\n /// @notice Gets Dai amount in Vat which can be added to Cdp\n\n /// @param _vat Address of Vat contract\n\n /// @param _urn Urn of the Cdp\n\n /// @param _ilk Ilk of the Cdp\n\n function normalizePaybackAmount(address _vat, address _urn, bytes32 _ilk) internal view returns (int amount) {\n\n uint dai = Vat(_vat).dai(_urn);\n\n\n\n (, uint rate,,,) = Vat(_vat).ilks(_ilk);\n\n (, uint art) = Vat(_vat).urns(_ilk, _urn);\n\n\n\n amount = toPositiveInt(dai / rate);\n\n amount = uint(amount) <= art ? - amount : - toPositiveInt(art);\n\n }\n\n\n\n /// @notice Gets the whole debt of the CDP\n\n /// @param _vat Address of Vat contract\n\n /// @param _usr Address of the Dai holder\n\n /// @param _urn Urn of the Cdp\n\n /// @param _ilk Ilk of the Cdp\n\n function getAllDebt(address _vat, address _usr, address _urn, bytes32 _ilk) internal view returns (uint daiAmount) {\n\n (, uint rate,,,) = Vat(_vat).ilks(_ilk);\n\n (, uint art) = Vat(_vat).urns(_ilk, _urn);\n\n uint dai = Vat(_vat).dai(_usr);\n\n\n\n uint rad = sub(mul(art, rate), dai);\n\n daiAmount = rad / RAY;\n\n\n\n daiAmount = mul(daiAmount, RAY) < rad ? daiAmount + 1 : daiAmount;\n\n }\n\n\n\n /// @notice Gets the token address from the Join contract\n\n /// @param _joinAddr Address of the Join contract\n\n function getCollateralAddr(address _joinAddr) internal view returns (address) {\n\n return address(Join(_joinAddr).gem());\n\n }\n\n\n\n /// @notice Gets CDP info (collateral, debt)\n\n /// @param _manager Manager contract\n\n /// @param _cdpId Id of the CDP\n\n /// @param _ilk Ilk of the CDP\n\n function getCdpInfo(Manager _manager, uint _cdpId, bytes32 _ilk) public view returns (uint, uint) {\n\n address vat = _manager.vat();\n\n address urn = _manager.urns(_cdpId);\n\n\n\n (uint collateral, uint debt) = Vat(vat).urns(_ilk, urn);\n\n (,uint rate,,,) = Vat(vat).ilks(_ilk);\n\n\n\n return (collateral, rmul(debt, rate));\n\n }\n\n\n\n /// @notice Address that owns the DSProxy that owns the CDP\n\n /// @param _manager Manager contract\n\n /// @param _cdpId Id of the CDP\n\n function getOwner(Manager _manager, uint _cdpId) public view returns (address) {\n\n DSProxy proxy = DSProxy(uint160(_manager.owns(_cdpId)));\n\n\n\n return proxy.owner();\n\n }\n\n}\n\nabstract contract ILendingPool {\n\n function flashLoan( address payable _receiver, address _reserve, uint _amount, bytes calldata _params) external virtual;\n\n}\n\nabstract contract ProtocolInterface {\n\n function deposit(address _user, uint256 _amount) public virtual;\n\n\n\n function withdraw(address _user, uint256 _amount) public virtual;\n\n}\n\ncontract SavingsLogger {\n\n event Deposit(address indexed sender, uint8 protocol, uint256 amount);\n\n event Withdraw(address indexed sender, uint8 protocol, uint256 amount);\n\n event Swap(address indexed sender, uint8 fromProtocol, uint8 toProtocol, uint256 amount);\n\n\n\n function logDeposit(address _sender, uint8 _protocol, uint256 _amount) external {\n\n emit Deposit(_sender, _protocol, _amount);\n\n }\n\n\n\n function logWithdraw(address _sender, uint8 _protocol, uint256 _amount) external {\n\n emit Withdraw(_sender, _protocol, _amount);\n\n }\n\n\n\n function logSwap(address _sender, uint8 _protocolFrom, uint8 _protocolTo, uint256 _amount)\n\n external\n\n {\n\n emit Swap(_sender, _protocolFrom, _protocolTo, _amount);\n\n }\n\n}\n\ncontract AaveSavingsProtocol is ProtocolInterface, DSAuth {\n\n\n\n address public constant ADAI_ADDRESS = 0xfC1E690f61EFd961294b3e1Ce3313fBD8aa4f85d;\n\n address public constant AAVE_LENDING_POOL = 0x398eC7346DcD622eDc5ae82352F02bE94C62d119;\n\n address public constant AAVE_LENDING_POOL_CORE = 0x3dfd23A6c5E8BbcFc9581d2E864a68feb6a076d3;\n\n address public constant DAI_ADDRESS = 0x6B175474E89094C44Da98b954EedeAC495271d0F;\n\n\n\n function deposit(address _user, uint _amount) public override {\n\n require(msg.sender == _user);\n\n // get dai from user\n\n require(ERC20(DAI_ADDRESS).transferFrom(_user, address(this), _amount));\n\n\n\n ERC20(DAI_ADDRESS).approve(AAVE_LENDING_POOL_CORE, uint(-1));\n\n ILendingPool(AAVE_LENDING_POOL).deposit(DAI_ADDRESS, _amount, 0);\n\n\n\n ERC20(ADAI_ADDRESS).transfer(_user, ERC20(ADAI_ADDRESS).balanceOf(address(this)));\n\n }\n\n\n\n function withdraw(address _user, uint _amount) public override {\n\n require(msg.sender == _user);\n\n require(ERC20(ADAI_ADDRESS).transferFrom(_user, address(this), _amount));\n\n\n\n IAToken(ADAI_ADDRESS).redeem(_amount);\n\n\n\n // return dai we have to user\n\n ERC20(DAI_ADDRESS).transfer(_user, _amount);\n\n }\n\n}\n\ncontract CompoundSavingsProtocol {\n\n\n\n address public constant NEW_CDAI_ADDRESS = 0x5d3a536E4D6DbD6114cc1Ead35777bAB948E3643;\n\n address public constant DAI_ADDRESS = 0x6B175474E89094C44Da98b954EedeAC495271d0F;\n\n\n\n CTokenInterface public constant cDaiContract = CTokenInterface(NEW_CDAI_ADDRESS);\n\n\n\n function compDeposit(address _user, uint _amount) internal {\n\n // get dai from user\n\n require(ERC20(DAI_ADDRESS).transferFrom(_user, address(this), _amount));\n\n\n\n // mainnet only\n\n ERC20(DAI_ADDRESS).approve(NEW_CDAI_ADDRESS, uint(-1));\n\n\n\n // mint cDai\n\n require(cDaiContract.mint(_amount) == 0, \"Failed Mint\");\n\n }\n\n\n\n function compWithdraw(address _user, uint _amount) internal {\n\n // transfer all users balance to this contract\n\n require(cDaiContract.transferFrom(_user, address(this), ERC20(NEW_CDAI_ADDRESS).balanceOf(_user)));\n\n\n\n // approve cDai to compound contract\n\n cDaiContract.approve(NEW_CDAI_ADDRESS, uint(-1));\n\n // get dai from cDai contract\n\n require(cDaiContract.redeemUnderlying(_amount) == 0, \"Reedem Failed\");\n\n\n\n // return to user balance we didn't spend\n\n uint cDaiBalance = cDaiContract.balanceOf(address(this));\n\n if (cDaiBalance > 0) {\n\n cDaiContract.transfer(_user, cDaiBalance);\n\n }\n\n // return dai we have to user\n\n ERC20(DAI_ADDRESS).transfer(_user, _amount);\n\n }\n\n}\n\nabstract contract VatLike {\n\n function can(address, address) virtual public view returns (uint);\n\n function ilks(bytes32) virtual public view returns (uint, uint, uint, uint, uint);\n\n function dai(address) virtual public view returns (uint);\n\n function urns(bytes32, address) virtual public view returns (uint, uint);\n\n function frob(bytes32, address, address, address, int, int) virtual public;\n\n function hope(address) virtual public;\n\n function move(address, address, uint) virtual public;\n\n}\n\nabstract contract PotLike {\n\n function pie(address) virtual public view returns (uint);\n\n function drip() virtual public returns (uint);\n\n function join(uint) virtual public;\n\n function exit(uint) virtual public;\n\n}\n\nabstract contract GemLike {\n\n function approve(address, uint) virtual public;\n\n function transfer(address, uint) virtual public;\n\n function transferFrom(address, address, uint) virtual public;\n\n function deposit() virtual public payable;\n\n function withdraw(uint) virtual public;\n\n}\n\nabstract contract DaiJoinLike {\n\n function vat() virtual public returns (VatLike);\n\n function dai() virtual public returns (GemLike);\n\n function join(address, uint) virtual public payable;\n\n function exit(address, uint) virtual public;\n\n}\n\ncontract DSRSavingsProtocol is DSMath {\n\n\n\n // Mainnet\n\n address public constant POT_ADDRESS = 0x197E90f9FAD81970bA7976f33CbD77088E5D7cf7;\n\n address public constant DAI_JOIN_ADDRESS = 0x9759A6Ac90977b93B58547b4A71c78317f391A28;\n\n\n\n function dsrDeposit(uint _amount, bool _fromUser) internal {\n\n VatLike vat = DaiJoinLike(DAI_JOIN_ADDRESS).vat();\n\n\n\n uint chi = PotLike(POT_ADDRESS).drip();\n\n\n\n daiJoin_join(DAI_JOIN_ADDRESS, address(this), _amount, _fromUser);\n\n\n\n if (vat.can(address(this), address(POT_ADDRESS)) == 0) {\n\n vat.hope(POT_ADDRESS);\n\n }\n\n\n\n PotLike(POT_ADDRESS).join(mul(_amount, RAY) / chi);\n\n }\n\n\n\n function dsrWithdraw(uint _amount, bool _toUser) internal {\n\n VatLike vat = DaiJoinLike(DAI_JOIN_ADDRESS).vat();\n\n\n\n uint chi = PotLike(POT_ADDRESS).drip();\n\n uint pie = mul(_amount, RAY) / chi;\n\n\n\n PotLike(POT_ADDRESS).exit(pie);\n\n uint balance = DaiJoinLike(DAI_JOIN_ADDRESS).vat().dai(address(this));\n\n\n\n if (vat.can(address(this), address(DAI_JOIN_ADDRESS)) == 0) {\n\n vat.hope(DAI_JOIN_ADDRESS);\n\n }\n\n\n\n address to;\n\n if (_toUser) {\n\n to = msg.sender;\n\n } else {\n\n to = address(this);\n\n }\n\n\n\n if (_amount == uint(-1)) {\n\n DaiJoinLike(DAI_JOIN_ADDRESS).exit(to, mul(chi, pie) / RAY);\n\n } else {\n\n DaiJoinLike(DAI_JOIN_ADDRESS).exit(\n\n to,\n\n balance >= mul(_amount, RAY) ? _amount : balance / RAY\n\n );\n\n }\n\n }\n\n\n\n function daiJoin_join(address apt, address urn, uint wad, bool _fromUser) internal {\n\n if (_fromUser) {\n\n DaiJoinLike(apt).dai().transferFrom(msg.sender, address(this), wad);\n\n }\n\n\n\n DaiJoinLike(apt).dai().approve(apt, wad);\n\n\n\n DaiJoinLike(apt).join(urn, wad);\n\n }\n\n}\n\ncontract DydxSavingsProtocol is ProtocolInterface, DSAuth {\n\n address public constant SOLO_MARGIN_ADDRESS = 0x1E0447b19BB6EcFdAe1e4AE1694b0C3659614e4e;\n\n\n\n ISoloMargin public soloMargin;\n\n address public savingsProxy;\n\n\n\n uint daiMarketId = 3;\n\n\n\n constructor() public {\n\n soloMargin = ISoloMargin(SOLO_MARGIN_ADDRESS);\n\n }\n\n\n\n function addSavingsProxy(address _savingsProxy) public auth {\n\n savingsProxy = _savingsProxy;\n\n }\n\n\n\n function deposit(address _user, uint _amount) public override {\n\n require(msg.sender == _user);\n\n\n\n Account.Info[] memory accounts = new Account.Info[](1);\n\n accounts[0] = getAccount(_user, 0);\n\n\n\n Actions.ActionArgs[] memory actions = new Actions.ActionArgs[](1);\n\n Types.AssetAmount memory amount = Types.AssetAmount({\n\n sign: true,\n\n denomination: Types.AssetDenomination.Wei,\n\n ref: Types.AssetReference.Delta,\n\n value: _amount\n\n });\n\n\n\n actions[0] = Actions.ActionArgs({\n\n actionType: Actions.ActionType.Deposit,\n\n accountId: 0,\n\n amount: amount,\n\n primaryMarketId: daiMarketId,\n\n otherAddress: _user,\n\n secondaryMarketId: 0, //not used\n\n otherAccountId: 0, //not used\n\n data: \"\" //not used\n\n });\n\n\n\n soloMargin.operate(accounts, actions);\n\n }\n\n\n\n function withdraw(address _user, uint _amount) public override {\n\n require(msg.sender == _user);\n\n\n\n Account.Info[] memory accounts = new Account.Info[](1);\n\n accounts[0] = getAccount(_user, 0);\n\n\n\n Actions.ActionArgs[] memory actions = new Actions.ActionArgs[](1);\n\n Types.AssetAmount memory amount = Types.AssetAmount({\n\n sign: false,\n\n denomination: Types.AssetDenomination.Wei,\n\n ref: Types.AssetReference.Delta,\n\n value: _amount\n\n });\n\n\n\n actions[0] = Actions.ActionArgs({\n\n actionType: Actions.ActionType.Withdraw,\n\n accountId: 0,\n\n amount: amount,\n\n primaryMarketId: daiMarketId,\n\n otherAddress: _user,\n\n secondaryMarketId: 0, //not used\n\n otherAccountId: 0, //not used\n\n data: \"\" //not used\n\n });\n\n\n\n soloMargin.operate(accounts, actions);\n\n }\n\n\n\n function getWeiBalance(address _user, uint _index) public view returns(Types.Wei memory) {\n\n\n\n Types.Wei[] memory weiBalances;\n\n (,,weiBalances) = soloMargin.getAccountBalances(getAccount(_user, _index));\n\n\n\n return weiBalances[daiMarketId];\n\n }\n\n\n\n function getParBalance(address _user, uint _index) public view returns(Types.Par memory) {\n\n Types.Par[] memory parBalances;\n\n (,parBalances,) = soloMargin.getAccountBalances(getAccount(_user, _index));\n\n\n\n return parBalances[daiMarketId];\n\n }\n\n\n\n function getAccount(address _user, uint _index) public pure returns(Account.Info memory) {\n\n Account.Info memory account = Account.Info({\n\n owner: _user,\n\n number: _index\n\n });\n\n\n\n return account;\n\n }\n\n}\n\nabstract contract ISoloMargin {\n\n struct OperatorArg {\n\n address operator;\n\n bool trusted;\n\n }\n\n\n\n function operate(\n\n Account.Info[] memory accounts,\n\n Actions.ActionArgs[] memory actions\n\n ) public virtual;\n\n\n\n function getAccountBalances(\n\n Account.Info memory account\n\n ) public view virtual returns (\n\n address[] memory,\n\n Types.Par[] memory,\n\n Types.Wei[] memory\n\n );\n\n\n\n function setOperators(\n\n OperatorArg[] memory args\n\n ) public virtual;\n\n\n\n\n\n function getNumMarkets() public view virtual returns (uint256);\n\n\n\n function getMarketTokenAddress(uint256 marketId)\n\n public\n\n view\n\n virtual\n\n returns (address);\n\n}\n\nlibrary Account {\n\n // ============ Enums ============\n\n\n\n /*\n\n * Most-recently-cached account status.\n\n *\n\n * Normal: Can only be liquidated if the account values are violating the global margin-ratio.\n\n * Liquid: Can be liquidated no matter the account values.\n\n * Can be vaporized if there are no more positive account values.\n\n * Vapor: Has only negative (or zeroed) account values. Can be vaporized.\n\n *\n\n */\n\n enum Status {\n\n Normal,\n\n Liquid,\n\n Vapor\n\n }\n\n\n\n // ============ Structs ============\n\n\n\n // Represents the unique key that specifies an account\n\n struct Info {\n\n address owner; // The address that owns the account\n\n uint256 number; // A nonce that allows a single address to control many accounts\n\n }\n\n\n\n // The complete storage for any account\n\n struct Storage {\n\n mapping (uint256 => Types.Par) balances; // Mapping from marketId to principal\n\n Status status;\n\n }\n\n\n\n // ============ Library Functions ============\n\n\n\n function equals(\n\n Info memory a,\n\n Info memory b\n\n )\n\n internal\n\n pure\n\n returns (bool)\n\n {\n\n return a.owner == b.owner && a.number == b.number;\n\n }\n\n}\n\nlibrary Actions {\n\n\n\n // ============ Constants ============\n\n\n\n bytes32 constant FILE = \"Actions\";\n\n\n\n // ============ Enums ============\n\n\n\n enum ActionType {\n\n Deposit, // supply tokens\n\n Withdraw, // borrow tokens\n\n Transfer, // transfer balance between accounts\n\n Buy, // buy an amount of some token (externally)\n\n Sell, // sell an amount of some token (externally)\n\n Trade, // trade tokens against another account\n\n Liquidate, // liquidate an undercollateralized or expiring account\n\n Vaporize, // use excess tokens to zero-out a completely negative account\n\n Call // send arbitrary data to an address\n\n }\n\n\n\n enum AccountLayout {\n\n OnePrimary,\n\n TwoPrimary,\n\n PrimaryAndSecondary\n\n }\n\n\n\n enum MarketLayout {\n\n ZeroMarkets,\n\n OneMarket,\n\n TwoMarkets\n\n }\n\n\n\n // ============ Structs ============\n\n\n\n /*\n\n * Arguments that are passed to Solo in an ordered list as part of a single operation.\n\n * Each ActionArgs has an actionType which specifies which action struct that this data will be\n\n * parsed into before being processed.\n\n */\n\n struct ActionArgs {\n\n ActionType actionType;\n\n uint256 accountId;\n\n Types.AssetAmount amount;\n\n uint256 primaryMarketId;\n\n uint256 secondaryMarketId;\n\n address otherAddress;\n\n uint256 otherAccountId;\n\n bytes data;\n\n }\n\n\n\n // ============ Action Types ============\n\n\n\n /*\n\n * Moves tokens from an address to Solo. Can either repay a borrow or provide additional supply.\n\n */\n\n struct DepositArgs {\n\n Types.AssetAmount amount;\n\n Account.Info account;\n\n uint256 market;\n\n address from;\n\n }\n\n\n\n /*\n\n * Moves tokens from Solo to another address. Can either borrow tokens or reduce the amount\n\n * previously supplied.\n\n */\n\n struct WithdrawArgs {\n\n Types.AssetAmount amount;\n\n Account.Info account;\n\n uint256 market;\n\n address to;\n\n }\n\n\n\n /*\n\n * Transfers balance between two accounts. The msg.sender must be an operator for both accounts.\n\n * The amount field applies to accountOne.\n\n * This action does not require any token movement since the trade is done internally to Solo.\n\n */\n\n struct TransferArgs {\n\n Types.AssetAmount amount;\n\n Account.Info accountOne;\n\n Account.Info accountTwo;\n\n uint256 market;\n\n }\n\n\n\n /*\n\n * Acquires a certain amount of tokens by spending other tokens. Sends takerMarket tokens to the\n\n * specified exchangeWrapper contract and expects makerMarket tokens in return. The amount field\n\n * applies to the makerMarket.\n\n */\n\n struct BuyArgs {\n\n Types.AssetAmount amount;\n\n Account.Info account;\n\n uint256 makerMarket;\n\n uint256 takerMarket;\n\n address exchangeWrapper;\n\n bytes orderData;\n\n }\n\n\n\n /*\n\n * Spends a certain amount of tokens to acquire other tokens. Sends takerMarket tokens to the\n\n * specified exchangeWrapper and expects makerMarket tokens in return. The amount field applies\n\n * to the takerMarket.\n\n */\n\n struct SellArgs {\n\n Types.AssetAmount amount;\n\n Account.Info account;\n\n uint256 takerMarket;\n\n uint256 makerMarket;\n\n address exchangeWrapper;\n\n bytes orderData;\n\n }\n\n\n\n /*\n\n * Trades balances between two accounts using any external contract that implements the\n\n * AutoTrader interface. The AutoTrader contract must be an operator for the makerAccount (for\n\n * which it is trading on-behalf-of). The amount field applies to the makerAccount and the\n\n * inputMarket. This proposed change to the makerAccount is passed to the AutoTrader which will\n\n * quote a change for the makerAccount in the outputMarket (or will disallow the trade).\n\n * This action does not require any token movement since the trade is done internally to Solo.\n\n */\n\n struct TradeArgs {\n\n Types.AssetAmount amount;\n\n Account.Info takerAccount;\n\n Account.Info makerAccount;\n\n uint256 inputMarket;\n\n uint256 outputMarket;\n\n address autoTrader;\n\n bytes tradeData;\n\n }\n\n\n\n /*\n\n * Each account must maintain a certain margin-ratio (specified globally). If the account falls\n\n * below this margin-ratio, it can be liquidated by any other account. This allows anyone else\n\n * (arbitrageurs) to repay any borrowed asset (owedMarket) of the liquidating account in\n\n * exchange for any collateral asset (heldMarket) of the liquidAccount. The ratio is determined\n\n * by the price ratio (given by the oracles) plus a spread (specified globally). Liquidating an\n\n * account also sets a flag on the account that the account is being liquidated. This allows\n\n * anyone to continue liquidating the account until there are no more borrows being taken by the\n\n * liquidating account. Liquidators do not have to liquidate the entire account all at once but\n\n * can liquidate as much as they choose. The liquidating flag allows liquidators to continue\n\n * liquidating the account even if it becomes collateralized through partial liquidation or\n\n * price movement.\n\n */\n\n struct LiquidateArgs {\n\n Types.AssetAmount amount;\n\n Account.Info solidAccount;\n\n Account.Info liquidAccount;\n\n uint256 owedMarket;\n\n uint256 heldMarket;\n\n }\n\n\n\n /*\n\n * Similar to liquidate, but vaporAccounts are accounts that have only negative balances\n\n * remaining. The arbitrageur pays back the negative asset (owedMarket) of the vaporAccount in\n\n * exchange for a collateral asset (heldMarket) at a favorable spread. However, since the\n\n * liquidAccount has no collateral assets, the collateral must come from Solo's excess tokens.\n\n */\n\n struct VaporizeArgs {\n\n Types.AssetAmount amount;\n\n Account.Info solidAccount;\n\n Account.Info vaporAccount;\n\n uint256 owedMarket;\n\n uint256 heldMarket;\n\n }\n\n\n\n /*\n\n * Passes arbitrary bytes of data to an external contract that implements the Callee interface.\n\n * Does not change any asset amounts. This function may be useful for setting certain variables\n\n * on layer-two contracts for certain accounts without having to make a separate Ethereum\n\n * transaction for doing so. Also, the second-layer contracts can ensure that the call is coming\n\n * from an operator of the particular account.\n\n */\n\n struct CallArgs {\n\n Account.Info account;\n\n address callee;\n\n bytes data;\n\n }\n\n\n\n // ============ Helper Functions ============\n\n\n\n function getMarketLayout(\n\n ActionType actionType\n\n )\n\n internal\n\n pure\n\n returns (MarketLayout)\n\n {\n\n if (\n\n actionType == Actions.ActionType.Deposit\n\n || actionType == Actions.ActionType.Withdraw\n\n || actionType == Actions.ActionType.Transfer\n\n ) {\n\n return MarketLayout.OneMarket;\n\n }\n\n else if (actionType == Actions.ActionType.Call) {\n\n return MarketLayout.ZeroMarkets;\n\n }\n\n return MarketLayout.TwoMarkets;\n\n }\n\n\n\n function getAccountLayout(\n\n ActionType actionType\n\n )\n\n internal\n\n pure\n\n returns (AccountLayout)\n\n {\n\n if (\n\n actionType == Actions.ActionType.Transfer\n\n || actionType == Actions.ActionType.Trade\n\n ) {\n\n return AccountLayout.TwoPrimary;\n\n } else if (\n\n actionType == Actions.ActionType.Liquidate\n\n || actionType == Actions.ActionType.Vaporize\n\n ) {\n\n return AccountLayout.PrimaryAndSecondary;\n\n }\n\n return AccountLayout.OnePrimary;\n\n }\n\n\n\n // ============ Parsing Functions ============\n\n\n\n function parseDepositArgs(\n\n Account.Info[] memory accounts,\n\n ActionArgs memory args\n\n )\n\n internal\n\n pure\n\n returns (DepositArgs memory)\n\n {\n\n assert(args.actionType == ActionType.Deposit);\n\n return DepositArgs({\n\n amount: args.amount,\n\n account: accounts[args.accountId],\n\n market: args.primaryMarketId,\n\n from: args.otherAddress\n\n });\n\n }\n\n\n\n function parseWithdrawArgs(\n\n Account.Info[] memory accounts,\n\n ActionArgs memory args\n\n )\n\n internal\n\n pure\n\n returns (WithdrawArgs memory)\n\n {\n\n assert(args.actionType == ActionType.Withdraw);\n\n return WithdrawArgs({\n\n amount: args.amount,\n\n account: accounts[args.accountId],\n\n market: args.primaryMarketId,\n\n to: args.otherAddress\n\n });\n\n }\n\n\n\n function parseTransferArgs(\n\n Account.Info[] memory accounts,\n\n ActionArgs memory args\n\n )\n\n internal\n\n pure\n\n returns (TransferArgs memory)\n\n {\n\n assert(args.actionType == ActionType.Transfer);\n\n return TransferArgs({\n\n amount: args.amount,\n\n accountOne: accounts[args.accountId],\n\n accountTwo: accounts[args.otherAccountId],\n\n market: args.primaryMarketId\n\n });\n\n }\n\n\n\n function parseBuyArgs(\n\n Account.Info[] memory accounts,\n\n ActionArgs memory args\n\n )\n\n internal\n\n pure\n\n returns (BuyArgs memory)\n\n {\n\n assert(args.actionType == ActionType.Buy);\n\n return BuyArgs({\n\n amount: args.amount,\n\n account: accounts[args.accountId],\n\n makerMarket: args.primaryMarketId,\n\n takerMarket: args.secondaryMarketId,\n\n exchangeWrapper: args.otherAddress,\n\n orderData: args.data\n\n });\n\n }\n\n\n\n function parseSellArgs(\n\n Account.Info[] memory accounts,\n\n ActionArgs memory args\n\n )\n\n internal\n\n pure\n\n returns (SellArgs memory)\n\n {\n\n assert(args.actionType == ActionType.Sell);\n\n return SellArgs({\n\n amount: args.amount,\n\n account: accounts[args.accountId],\n\n takerMarket: args.primaryMarketId,\n\n makerMarket: args.secondaryMarketId,\n\n exchangeWrapper: args.otherAddress,\n\n orderData: args.data\n\n });\n\n }\n\n\n\n function parseTradeArgs(\n\n Account.Info[] memory accounts,\n\n ActionArgs memory args\n\n )\n\n internal\n\n pure\n\n returns (TradeArgs memory)\n\n {\n\n assert(args.actionType == ActionType.Trade);\n\n return TradeArgs({\n\n amount: args.amount,\n\n takerAccount: accounts[args.accountId],\n\n makerAccount: accounts[args.otherAccountId],\n\n inputMarket: args.primaryMarketId,\n\n outputMarket: args.secondaryMarketId,\n\n autoTrader: args.otherAddress,\n\n tradeData: args.data\n\n });\n\n }\n\n\n\n function parseLiquidateArgs(\n\n Account.Info[] memory accounts,\n\n ActionArgs memory args\n\n )\n\n internal\n\n pure\n\n returns (LiquidateArgs memory)\n\n {\n\n assert(args.actionType == ActionType.Liquidate);\n\n return LiquidateArgs({\n\n amount: args.amount,\n\n solidAccount: accounts[args.accountId],\n\n liquidAccount: accounts[args.otherAccountId],\n\n owedMarket: args.primaryMarketId,\n\n heldMarket: args.secondaryMarketId\n\n });\n\n }\n\n\n\n function parseVaporizeArgs(\n\n Account.Info[] memory accounts,\n\n ActionArgs memory args\n\n )\n\n internal\n\n pure\n\n returns (VaporizeArgs memory)\n\n {\n\n assert(args.actionType == ActionType.Vaporize);\n\n return VaporizeArgs({\n\n amount: args.amount,\n\n solidAccount: accounts[args.accountId],\n\n vaporAccount: accounts[args.otherAccountId],\n\n owedMarket: args.primaryMarketId,\n\n heldMarket: args.secondaryMarketId\n\n });\n\n }\n\n\n\n function parseCallArgs(\n\n Account.Info[] memory accounts,\n\n ActionArgs memory args\n\n )\n\n internal\n\n pure\n\n returns (CallArgs memory)\n\n {\n\n assert(args.actionType == ActionType.Call);\n\n return CallArgs({\n\n account: accounts[args.accountId],\n\n callee: args.otherAddress,\n\n data: args.data\n\n });\n\n }\n\n}\n\nlibrary Math {\n\n using SafeMath for uint256;\n\n\n\n // ============ Constants ============\n\n\n\n bytes32 constant FILE = \"Math\";\n\n\n\n // ============ Library Functions ============\n\n\n\n /*\n\n * Return target * (numerator / denominator).\n\n */\n\n function getPartial(\n\n uint256 target,\n\n uint256 numerator,\n\n uint256 denominator\n\n )\n\n internal\n\n pure\n\n returns (uint256)\n\n {\n\n return target.mul(numerator).div(denominator);\n\n }\n\n\n\n /*\n\n * Return target * (numerator / denominator), but rounded up.\n\n */\n\n function getPartialRoundUp(\n\n uint256 target,\n\n uint256 numerator,\n\n uint256 denominator\n\n )\n\n internal\n\n pure\n\n returns (uint256)\n\n {\n\n if (target == 0 || numerator == 0) {\n\n // SafeMath will check for zero denominator\n\n return SafeMath.div(0, denominator);\n\n }\n\n return target.mul(numerator).sub(1).div(denominator).add(1);\n\n }\n\n\n\n function to128(\n\n uint256 number\n\n )\n\n internal\n\n pure\n\n returns (uint128)\n\n {\n\n uint128 result = uint128(number);\n\n Require.that(\n\n result == number,\n\n FILE,\n\n \"Unsafe cast to uint128\"\n\n );\n\n return result;\n\n }\n\n\n\n function to96(\n\n uint256 number\n\n )\n\n internal\n\n pure\n\n returns (uint96)\n\n {\n\n uint96 result = uint96(number);\n\n Require.that(\n\n result == number,\n\n FILE,\n\n \"Unsafe cast to uint96\"\n\n );\n\n return result;\n\n }\n\n\n\n function to32(\n\n uint256 number\n\n )\n\n internal\n\n pure\n\n returns (uint32)\n\n {\n\n uint32 result = uint32(number);\n\n Require.that(\n\n result == number,\n\n FILE,\n\n \"Unsafe cast to uint32\"\n\n );\n\n return result;\n\n }\n\n\n\n function min(\n\n uint256 a,\n\n uint256 b\n\n )\n\n internal\n\n pure\n\n returns (uint256)\n\n {\n\n return a < b ? a : b;\n\n }\n\n\n\n function max(\n\n uint256 a,\n\n uint256 b\n\n )\n\n internal\n\n pure\n\n returns (uint256)\n\n {\n\n return a > b ? a : b;\n\n }\n\n}\n\nlibrary Require {\n\n\n\n // ============ Constants ============\n\n\n\n uint256 constant ASCII_ZERO = 48; // '0'\n\n uint256 constant ASCII_RELATIVE_ZERO = 87; // 'a' - 10\n\n uint256 constant ASCII_LOWER_EX = 120; // 'x'\n\n bytes2 constant COLON = 0x3a20; // ': '\n\n bytes2 constant COMMA = 0x2c20; // ', '\n\n bytes2 constant LPAREN = 0x203c; // ' <'\n\n byte constant RPAREN = 0x3e; // '>'\n\n uint256 constant FOUR_BIT_MASK = 0xf;\n\n\n\n // ============ Library Functions ============\n\n\n\n function that(\n\n bool must,\n\n bytes32 file,\n\n bytes32 reason\n\n )\n\n internal\n\n pure\n\n {\n\n if (!must) {\n\n revert(\n\n string(\n\n abi.encodePacked(\n\n stringifyTruncated(file),\n\n COLON,\n\n stringifyTruncated(reason)\n\n )\n\n )\n\n );\n\n }\n\n }\n\n\n\n function that(\n\n bool must,\n\n bytes32 file,\n\n bytes32 reason,\n\n uint256 payloadA\n\n )\n\n internal\n\n pure\n\n {\n\n if (!must) {\n\n revert(\n\n string(\n\n abi.encodePacked(\n\n stringifyTruncated(file),\n\n COLON,\n\n stringifyTruncated(reason),\n\n LPAREN,\n\n stringify(payloadA),\n\n RPAREN\n\n )\n\n )\n\n );\n\n }\n\n }\n\n\n\n function that(\n\n bool must,\n\n bytes32 file,\n\n bytes32 reason,\n\n uint256 payloadA,\n\n uint256 payloadB\n\n )\n\n internal\n\n pure\n\n {\n\n if (!must) {\n\n revert(\n\n string(\n\n abi.encodePacked(\n\n stringifyTruncated(file),\n\n COLON,\n\n stringifyTruncated(reason),\n\n LPAREN,\n\n stringify(payloadA),\n\n COMMA,\n\n stringify(payloadB),\n\n RPAREN\n\n )\n\n )\n\n );\n\n }\n\n }\n\n\n\n function that(\n\n bool must,\n\n bytes32 file,\n\n bytes32 reason,\n\n address payloadA\n\n )\n\n internal\n\n pure\n\n {\n\n if (!must) {\n\n revert(\n\n string(\n\n abi.encodePacked(\n\n stringifyTruncated(file),\n\n COLON,\n\n stringifyTruncated(reason),\n\n LPAREN,\n\n stringify(payloadA),\n\n RPAREN\n\n )\n\n )\n\n );\n\n }\n\n }\n\n\n\n function that(\n\n bool must,\n\n bytes32 file,\n\n bytes32 reason,\n\n address payloadA,\n\n uint256 payloadB\n\n )\n\n internal\n\n pure\n\n {\n\n if (!must) {\n\n revert(\n\n string(\n\n abi.encodePacked(\n\n stringifyTruncated(file),\n\n COLON,\n\n stringifyTruncated(reason),\n\n LPAREN,\n\n stringify(payloadA),\n\n COMMA,\n\n stringify(payloadB),\n\n RPAREN\n\n )\n\n )\n\n );\n\n }\n\n }\n\n\n\n function that(\n\n bool must,\n\n bytes32 file,\n\n bytes32 reason,\n\n address payloadA,\n\n uint256 payloadB,\n\n uint256 payloadC\n\n )\n\n internal\n\n pure\n\n {\n\n if (!must) {\n\n revert(\n\n string(\n\n abi.encodePacked(\n\n stringifyTruncated(file),\n\n COLON,\n\n stringifyTruncated(reason),\n\n LPAREN,\n\n stringify(payloadA),\n\n COMMA,\n\n stringify(payloadB),\n\n COMMA,\n\n stringify(payloadC),\n\n RPAREN\n\n )\n\n )\n\n );\n\n }\n\n }\n\n\n\n function that(\n\n bool must,\n\n bytes32 file,\n\n bytes32 reason,\n\n bytes32 payloadA\n\n )\n\n internal\n\n pure\n\n {\n\n if (!must) {\n\n revert(\n\n string(\n\n abi.encodePacked(\n\n stringifyTruncated(file),\n\n COLON,\n\n stringifyTruncated(reason),\n\n LPAREN,\n\n stringify(payloadA),\n\n RPAREN\n\n )\n\n )\n\n );\n\n }\n\n }\n\n\n\n function that(\n\n bool must,\n\n bytes32 file,\n\n bytes32 reason,\n\n bytes32 payloadA,\n\n uint256 payloadB,\n\n uint256 payloadC\n\n )\n\n internal\n\n pure\n\n {\n\n if (!must) {\n\n revert(\n\n string(\n\n abi.encodePacked(\n\n stringifyTruncated(file),\n\n COLON,\n\n stringifyTruncated(reason),\n\n LPAREN,\n\n stringify(payloadA),\n\n COMMA,\n\n stringify(payloadB),\n\n COMMA,\n\n stringify(payloadC),\n\n RPAREN\n\n )\n\n )\n\n );\n\n }\n\n }\n\n\n\n // ============ Private Functions ============\n\n\n\n function stringifyTruncated(\n\n bytes32 input\n\n )\n\n private\n\n pure\n\n returns (bytes memory)\n\n {\n\n // put the input bytes into the result\n\n bytes memory result = abi.encodePacked(input);\n\n\n\n // determine the length of the input by finding the location of the last non-zero byte\n\n for (uint256 i = 32; i > 0; ) {\n\n // reverse-for-loops with unsigned integer\n\n /* solium-disable-next-line security/no-modify-for-iter-var */\n\n i--;\n\n\n\n // find the last non-zero byte in order to determine the length\n\n if (result[i] != 0) {\n\n uint256 length = i + 1;\n\n\n\n /* solium-disable-next-line security/no-inline-assembly */\n\n assembly {\n\n mstore(result, length) // r.length = length;\n\n }\n\n\n\n return result;\n\n }\n\n }\n\n\n\n // all bytes are zero\n\n return new bytes(0);\n\n }\n\n\n\n function stringify(\n\n uint256 input\n\n )\n\n private\n\n pure\n\n returns (bytes memory)\n\n {\n\n if (input == 0) {\n\n return \"0\";\n\n }\n\n\n\n // get the final string length\n\n uint256 j = input;\n\n uint256 length;\n\n while (j != 0) {\n\n length++;\n\n j /= 10;\n\n }\n\n\n\n // allocate the string\n\n bytes memory bstr = new bytes(length);\n\n\n\n // populate the string starting with the least-significant character\n\n j = input;\n\n for (uint256 i = length; i > 0; ) {\n\n // reverse-for-loops with unsigned integer\n\n /* solium-disable-next-line security/no-modify-for-iter-var */\n\n i--;\n\n\n\n // take last decimal digit\n\n bstr[i] = byte(uint8(ASCII_ZERO + (j % 10)));\n\n\n\n // remove the last decimal digit\n\n j /= 10;\n\n }\n\n\n\n return bstr;\n\n }\n\n\n\n function stringify(\n\n address input\n\n )\n\n private\n\n pure\n\n returns (bytes memory)\n\n {\n\n uint256 z = uint256(input);\n\n\n\n // addresses are \"0x\" followed by 20 bytes of data which take up 2 characters each\n\n bytes memory result = new bytes(42);\n\n\n\n // populate the result with \"0x\"\n\n result[0] = byte(uint8(ASCII_ZERO));\n\n result[1] = byte(uint8(ASCII_LOWER_EX));\n\n\n\n // for each byte (starting from the lowest byte), populate the result with two characters\n\n for (uint256 i = 0; i < 20; i++) {\n\n // each byte takes two characters\n\n uint256 shift = i * 2;\n\n\n\n // populate the least-significant character\n\n result[41 - shift] = char(z & FOUR_BIT_MASK);\n\n z = z >> 4;\n\n\n\n // populate the most-significant character\n\n result[40 - shift] = char(z & FOUR_BIT_MASK);\n\n z = z >> 4;\n\n }\n\n\n\n return result;\n\n }\n\n\n\n function stringify(\n\n bytes32 input\n\n )\n\n private\n\n pure\n\n returns (bytes memory)\n\n {\n\n uint256 z = uint256(input);\n\n\n\n // bytes32 are \"0x\" followed by 32 bytes of data which take up 2 characters each\n\n bytes memory result = new bytes(66);\n\n\n\n // populate the result with \"0x\"\n\n result[0] = byte(uint8(ASCII_ZERO));\n\n result[1] = byte(uint8(ASCII_LOWER_EX));\n\n\n\n // for each byte (starting from the lowest byte), populate the result with two characters\n\n for (uint256 i = 0; i < 32; i++) {\n\n // each byte takes two characters\n\n uint256 shift = i * 2;\n\n\n\n // populate the least-significant character\n\n result[65 - shift] = char(z & FOUR_BIT_MASK);\n\n z = z >> 4;\n\n\n\n // populate the most-significant character\n\n result[64 - shift] = char(z & FOUR_BIT_MASK);\n\n z = z >> 4;\n\n }\n\n\n\n return result;\n\n }\n\n\n\n function char(\n\n uint256 input\n\n )\n\n private\n\n pure\n\n returns (byte)\n\n {\n\n // return ASCII digit (0-9)\n\n if (input < 10) {\n\n return byte(uint8(input + ASCII_ZERO));\n\n }\n\n\n\n // return ASCII letter (a-f)\n\n return byte(uint8(input + ASCII_RELATIVE_ZERO));\n\n }\n\n}\n\nlibrary Types {\n\n using Math for uint256;\n\n\n\n // ============ AssetAmount ============\n\n\n\n enum AssetDenomination {\n\n Wei, // the amount is denominated in wei\n\n Par // the amount is denominated in par\n\n }\n\n\n\n enum AssetReference {\n\n Delta, // the amount is given as a delta from the current value\n\n Target // the amount is given as an exact number to end up at\n\n }\n\n\n\n struct AssetAmount {\n\n bool sign; // true if positive\n\n AssetDenomination denomination;\n\n AssetReference ref;\n\n uint256 value;\n\n }\n\n\n\n // ============ Par (Principal Amount) ============\n\n\n\n // Total borrow and supply values for a market\n\n struct TotalPar {\n\n uint128 borrow;\n\n uint128 supply;\n\n }\n\n\n\n // Individual principal amount for an account\n\n struct Par {\n\n bool sign; // true if positive\n\n uint128 value;\n\n }\n\n\n\n function zeroPar()\n\n internal\n\n pure\n\n returns (Par memory)\n\n {\n\n return Par({\n\n sign: false,\n\n value: 0\n\n });\n\n }\n\n\n\n function sub(\n\n Par memory a,\n\n Par memory b\n\n )\n\n internal\n\n pure\n\n returns (Par memory)\n\n {\n\n return add(a, negative(b));\n\n }\n\n\n\n function add(\n\n Par memory a,\n\n Par memory b\n\n )\n\n internal\n\n pure\n\n returns (Par memory)\n\n {\n\n Par memory result;\n\n if (a.sign == b.sign) {\n\n result.sign = a.sign;\n\n result.value = SafeMath.add(a.value, b.value).to128();\n\n } else {\n\n if (a.value >= b.value) {\n\n result.sign = a.sign;\n\n result.value = SafeMath.sub(a.value, b.value).to128();\n\n } else {\n\n result.sign = b.sign;\n\n result.value = SafeMath.sub(b.value, a.value).to128();\n\n }\n\n }\n\n return result;\n\n }\n\n\n\n function equals(\n\n Par memory a,\n\n Par memory b\n\n )\n\n internal\n\n pure\n\n returns (bool)\n\n {\n\n if (a.value == b.value) {\n\n if (a.value == 0) {\n\n return true;\n\n }\n\n return a.sign == b.sign;\n\n }\n\n return false;\n\n }\n\n\n\n function negative(\n\n Par memory a\n\n )\n\n internal\n\n pure\n\n returns (Par memory)\n\n {\n\n return Par({\n\n sign: !a.sign,\n\n value: a.value\n\n });\n\n }\n\n\n\n function isNegative(\n\n Par memory a\n\n )\n\n internal\n\n pure\n\n returns (bool)\n\n {\n\n return !a.sign && a.value > 0;\n\n }\n\n\n\n function isPositive(\n\n Par memory a\n\n )\n\n internal\n\n pure\n\n returns (bool)\n\n {\n\n return a.sign && a.value > 0;\n\n }\n\n\n\n function isZero(\n\n Par memory a\n\n )\n\n internal\n\n pure\n\n returns (bool)\n\n {\n\n return a.value == 0;\n\n }\n\n\n\n // ============ Wei (Token Amount) ============\n\n\n\n // Individual token amount for an account\n\n struct Wei {\n\n bool sign; // true if positive\n\n uint256 value;\n\n }\n\n\n\n function zeroWei()\n\n internal\n\n pure\n\n returns (Wei memory)\n\n {\n\n return Wei({\n\n sign: false,\n\n value: 0\n\n });\n\n }\n\n\n\n function sub(\n\n Wei memory a,\n\n Wei memory b\n\n )\n\n internal\n\n pure\n\n returns (Wei memory)\n\n {\n\n return add(a, negative(b));\n\n }\n\n\n\n function add(\n\n Wei memory a,\n\n Wei memory b\n\n )\n\n internal\n\n pure\n\n returns (Wei memory)\n\n {\n\n Wei memory result;\n\n if (a.sign == b.sign) {\n\n result.sign = a.sign;\n\n result.value = SafeMath.add(a.value, b.value);\n\n } else {\n\n if (a.value >= b.value) {\n\n result.sign = a.sign;\n\n result.value = SafeMath.sub(a.value, b.value);\n\n } else {\n\n result.sign = b.sign;\n\n result.value = SafeMath.sub(b.value, a.value);\n\n }\n\n }\n\n return result;\n\n }\n\n\n\n function equals(\n\n Wei memory a,\n\n Wei memory b\n\n )\n\n internal\n\n pure\n\n returns (bool)\n\n {\n\n if (a.value == b.value) {\n\n if (a.value == 0) {\n\n return true;\n\n }\n\n return a.sign == b.sign;\n\n }\n\n return false;\n\n }\n\n\n\n function negative(\n\n Wei memory a\n\n )\n\n internal\n\n pure\n\n returns (Wei memory)\n\n {\n\n return Wei({\n\n sign: !a.sign,\n\n value: a.value\n\n });\n\n }\n\n\n\n function isNegative(\n\n Wei memory a\n\n )\n\n internal\n\n pure\n\n returns (bool)\n\n {\n\n return !a.sign && a.value > 0;\n\n }\n\n\n\n function isPositive(\n\n Wei memory a\n\n )\n\n internal\n\n pure\n\n returns (bool)\n\n {\n\n return a.sign && a.value > 0;\n\n }\n\n\n\n function isZero(\n\n Wei memory a\n\n )\n\n internal\n\n pure\n\n returns (bool)\n\n {\n\n return a.value == 0;\n\n }\n\n}\n\ncontract FulcrumSavingsProtocol is ProtocolInterface, DSAuth {\n\n\n\n address public constant NEW_IDAI_ADDRESS = 0x493C57C4763932315A328269E1ADaD09653B9081;\n\n address public constant DAI_ADDRESS = 0x6B175474E89094C44Da98b954EedeAC495271d0F;\n\n\n\n address public savingsProxy;\n\n uint public decimals = 10 ** 18;\n\n\n\n function addSavingsProxy(address _savingsProxy) public auth {\n\n savingsProxy = _savingsProxy;\n\n }\n\n\n\n function deposit(address _user, uint _amount) public override {\n\n require(msg.sender == _user);\n\n\n\n // get dai from user\n\n require(ERC20(DAI_ADDRESS).transferFrom(_user, address(this), _amount));\n\n\n\n // approve dai to Fulcrum\n\n ERC20(DAI_ADDRESS).approve(NEW_IDAI_ADDRESS, uint(-1));\n\n\n\n // mint iDai\n\n ITokenInterface(NEW_IDAI_ADDRESS).mint(_user, _amount);\n\n }\n\n\n\n function withdraw(address _user, uint _amount) public override {\n\n require(msg.sender == _user);\n\n\n\n // transfer all users tokens to our contract\n\n require(ERC20(NEW_IDAI_ADDRESS).transferFrom(_user, address(this), ITokenInterface(NEW_IDAI_ADDRESS).balanceOf(_user)));\n\n\n\n // approve iDai to that contract\n\n ERC20(NEW_IDAI_ADDRESS).approve(NEW_IDAI_ADDRESS, uint(-1));\n\n uint tokenPrice = ITokenInterface(NEW_IDAI_ADDRESS).tokenPrice();\n\n\n\n // get dai from iDai contract\n\n ITokenInterface(NEW_IDAI_ADDRESS).burn(_user, _amount * decimals / tokenPrice);\n\n\n\n // return all remaining tokens back to user\n\n require(ERC20(NEW_IDAI_ADDRESS).transfer(_user, ITokenInterface(NEW_IDAI_ADDRESS).balanceOf(address(this))));\n\n }\n\n}\n\ncontract LoanShifterTaker is AdminAuth, ProxyPermission {\n\n\n\n ILendingPool public constant lendingPool = ILendingPool(0x398eC7346DcD622eDc5ae82352F02bE94C62d119);\n\n\n\n address public constant ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n address public constant DAI_ADDRESS = 0x6B175474E89094C44Da98b954EedeAC495271d0F;\n\n\n\n address public constant MANAGER_ADDRESS = 0x5ef30b9986345249bc32d8928B7ee64DE9435E39;\n\n\n\n Manager public constant manager = Manager(MANAGER_ADDRESS);\n\n ShifterRegistry public constant shifterRegistry = ShifterRegistry(0x2612Af3A521c2df9EAF28422Ca335b04AdF3ac66);\n\n\n\n enum Protocols { MCD, COMPOUND }\n\n enum SwapType { NO_SWAP, COLL_SWAP, DEBT_SWAP }\n\n\n\n struct LoanShiftData {\n\n Protocols fromProtocol;\n\n Protocols toProtocol;\n\n SwapType swapType;\n\n bool wholeDebt;\n\n uint collAmount;\n\n uint debtAmount;\n\n address debtAddr1;\n\n address debtAddr2;\n\n address addrLoan1;\n\n address addrLoan2;\n\n uint id1;\n\n uint id2;\n\n }\n\n\n\n /// @notice Main entry point, it will move or transform a loan\n\n /// @dev Called through DSProxy\n\n function moveLoan(\n\n SaverExchangeCore.ExchangeData memory _exchangeData,\n\n LoanShiftData memory _loanShift\n\n ) public {\n\n if (_isSameTypeVaults(_loanShift)) {\n\n _forkVault(_loanShift);\n\n return;\n\n }\n\n\n\n _callCloseAndOpen(_exchangeData, _loanShift);\n\n }\n\n\n\n //////////////////////// INTERNAL FUNCTIONS //////////////////////////\n\n\n\n function _callCloseAndOpen(\n\n SaverExchangeCore.ExchangeData memory _exchangeData,\n\n LoanShiftData memory _loanShift\n\n ) internal {\n\n address protoAddr = shifterRegistry.getAddr(getNameByProtocol(uint8(_loanShift.fromProtocol)));\n\n\n\n uint loanAmount = _loanShift.debtAmount;\n\n\n\n if (_loanShift.wholeDebt) {\n\n loanAmount = ILoanShifter(protoAddr).getLoanAmount(_loanShift.id1, _loanShift.addrLoan1);\n\n }\n\n\n\n (\n\n uint[8] memory numData,\n\n address[8] memory addrData,\n\n uint8[3] memory enumData,\n\n bytes memory callData\n\n )\n\n = _packData(_loanShift, _exchangeData);\n\n\n\n // encode data\n\n bytes memory paramsData = abi.encode(numData, addrData, enumData, callData, address(this));\n\n\n\n address payable loanShifterReceiverAddr = payable(shifterRegistry.getAddr(\"LOAN_SHIFTER_RECEIVER\"));\n\n\n\n // call FL\n\n givePermission(loanShifterReceiverAddr);\n\n\n\n lendingPool.flashLoan(loanShifterReceiverAddr,\n\n getLoanAddr(_loanShift.debtAddr1, _loanShift.fromProtocol), loanAmount, paramsData);\n\n\n\n removePermission(loanShifterReceiverAddr);\n\n }\n\n\n\n function _forkVault(LoanShiftData memory _loanShift) internal {\n\n // Create new Vault to move to\n\n if (_loanShift.id2 == 0) {\n\n _loanShift.id2 = manager.open(manager.ilks(_loanShift.id1), address(this));\n\n }\n\n\n\n if (_loanShift.wholeDebt) {\n\n manager.shift(_loanShift.id1, _loanShift.id2);\n\n }\n\n }\n\n\n\n function _isSameTypeVaults(LoanShiftData memory _loanShift) internal pure returns (bool) {\n\n return _loanShift.fromProtocol == Protocols.MCD && _loanShift.toProtocol == Protocols.MCD\n\n && _loanShift.addrLoan1 == _loanShift.addrLoan2;\n\n }\n\n\n\n function getNameByProtocol(uint8 _proto) internal pure returns (string memory) {\n\n if (_proto == 0) {\n\n return \"MCD_SHIFTER\";\n\n } else if (_proto == 1) {\n\n return \"COMP_SHIFTER\";\n\n }\n\n }\n\n\n\n function getLoanAddr(address _address, Protocols _fromProtocol) internal returns (address) {\n\n if (_fromProtocol == Protocols.COMPOUND) {\n\n return CTokenInterface(_address).underlying();\n\n } else if (_fromProtocol == Protocols.MCD) {\n\n return DAI_ADDRESS;\n\n } else {\n\n return address(0);\n\n }\n\n }\n\n\n\n function _packData(\n\n LoanShiftData memory _loanShift,\n\n SaverExchangeCore.ExchangeData memory exchangeData\n\n ) internal pure returns (uint[8] memory numData, address[8] memory addrData, uint8[3] memory enumData, bytes memory callData) {\n\n\n\n numData = [\n\n _loanShift.collAmount,\n\n _loanShift.debtAmount,\n\n _loanShift.id1,\n\n _loanShift.id2,\n\n exchangeData.srcAmount,\n\n exchangeData.destAmount,\n\n exchangeData.minPrice,\n\n exchangeData.price0x\n\n ];\n\n\n\n addrData = [\n\n _loanShift.addrLoan1,\n\n _loanShift.addrLoan2,\n\n _loanShift.debtAddr1,\n\n _loanShift.debtAddr2,\n\n exchangeData.srcAddr,\n\n exchangeData.destAddr,\n\n exchangeData.exchangeAddr,\n\n exchangeData.wrapper\n\n ];\n\n\n\n enumData = [\n\n uint8(_loanShift.fromProtocol),\n\n uint8(_loanShift.toProtocol),\n\n uint8(_loanShift.swapType)\n\n ];\n\n\n\n callData = exchangeData.callData;\n\n }\n\n\n\n}\n\ncontract ShifterRegistry is AdminAuth {\n\n mapping (string => address) public contractAddresses;\n\n bool public finalized;\n\n\n\n function changeContractAddr(string memory _contractName, address _protoAddr) public onlyOwner {\n\n require(!finalized);\n\n contractAddresses[_contractName] = _protoAddr;\n\n }\n\n\n\n function lock() public onlyOwner {\n\n finalized = true;\n\n }\n\n\n\n function getAddr(string memory _contractName) public view returns (address contractAddr) {\n\n contractAddr = contractAddresses[_contractName];\n\n\n\n require(contractAddr != address(0), \"No contract address registred\");\n\n }\n\n\n\n}\n\nlibrary Address {\n\n function isContract(address account) internal view returns (bool) {\n\n // According to EIP-1052, 0x0 is the value returned for not-yet created accounts\n\n // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned\n\n // for accounts without code, i.e. `keccak256('')`\n\n bytes32 codehash;\n\n bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;\n\n // solhint-disable-next-line no-inline-assembly\n\n assembly { codehash := extcodehash(account) }\n\n return (codehash != accountHash && codehash != 0x0);\n\n }\n\n\n\n function sendValue(address payable recipient, uint256 amount) internal {\n\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n\n\n // solhint-disable-next-line avoid-low-level-calls, avoid-call-value\n\n (bool success, ) = recipient.call{ value: amount }(\"\");\n\n require(success, \"Address: unable to send value, recipient may have reverted\");\n\n }\n\n\n\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n\n return functionCall(target, data, \"Address: low-level call failed\");\n\n }\n\n\n\n function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {\n\n return _functionCallWithValue(target, data, 0, errorMessage);\n\n }\n\n\n\n function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n\n }\n\n\n\n function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {\n\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n\n return _functionCallWithValue(target, data, value, errorMessage);\n\n }\n\n\n\n function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {\n\n require(isContract(target), \"Address: call to non-contract\");\n\n\n\n // solhint-disable-next-line avoid-low-level-calls\n\n (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);\n\n if (success) {\n\n return returndata;\n\n } else {\n\n // Look for revert reason and bubble it up if present\n\n if (returndata.length > 0) {\n\n // The easiest way to bubble the revert reason is using memory via assembly\n\n\n\n // solhint-disable-next-line no-inline-assembly\n\n assembly {\n\n let returndata_size := mload(returndata)\n\n revert(add(32, returndata), returndata_size)\n\n }\n\n } else {\n\n revert(errorMessage);\n\n }\n\n }\n\n }\n\n}\n\ncontract BotRegistry is AdminAuth {\n\n\n\n mapping (address => bool) public botList;\n\n\n\n constructor() public {\n\n botList[0x776B4a13093e30B05781F97F6A4565B6aa8BE330] = true;\n\n\n\n botList[0xAED662abcC4FA3314985E67Ea993CAD064a7F5cF] = true;\n\n botList[0xa5d330F6619d6bF892A5B87D80272e1607b3e34D] = true;\n\n botList[0x5feB4DeE5150B589a7f567EA7CADa2759794A90A] = true;\n\n botList[0x7ca06417c1d6f480d3bB195B80692F95A6B66158] = true;\n\n }\n\n\n\n function setBot(address _botAddr, bool _state) public onlyOwner {\n\n botList[_botAddr] = _state;\n\n }\n\n\n\n}\n\ncontract DFSProxy is Auth {\n\n string public constant NAME = \"DFSProxy\";\n\n string public constant VERSION = \"v0.1\";\n\n\n\n mapping(address => mapping(uint => bool)) public nonces;\n\n\n\n // --- EIP712 niceties ---\n\n bytes32 public DOMAIN_SEPARATOR;\n\n bytes32 public constant PERMIT_TYPEHASH = keccak256(\"callProxy(address _user,address _proxy,address _contract,bytes _txData,uint256 _nonce)\");\n\n\n\n constructor(uint256 chainId_) public {\n\n DOMAIN_SEPARATOR = keccak256(abi.encode(\n\n keccak256(\"EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)\"),\n\n keccak256(bytes(NAME)),\n\n keccak256(bytes(VERSION)),\n\n chainId_,\n\n address(this)\n\n ));\n\n }\n\n\n\n function callProxy(address _user, address _proxy, address _contract, bytes calldata _txData, uint256 _nonce,\n\n uint8 _v, bytes32 _r, bytes32 _s) external payable onlyAuthorized\n\n {\n\n bytes32 digest =\n\n keccak256(abi.encodePacked(\n\n \"\\x19\\x01\",\n\n DOMAIN_SEPARATOR,\n\n keccak256(abi.encode(PERMIT_TYPEHASH,\n\n _user,\n\n _proxy,\n\n _contract,\n\n _txData,\n\n _nonce))\n\n ));\n\n\n\n // user must be proxy owner\n\n require(DSProxyInterface(_proxy).owner() == _user);\n\n require(_user == ecrecover(digest, _v, _r, _s), \"DFSProxy/user-not-valid\");\n\n require(!nonces[_user][_nonce], \"DFSProxy/invalid-nonce\");\n\n \n\n nonces[_user][_nonce] = true;\n\n\n\n DSProxyInterface(_proxy).execute{value: msg.value}(_contract, _txData);\n\n }\n\n}\n\ncontract DebugInfo {\n\n\n\n mapping (string => uint) public uintValues;\n\n mapping (string => address) public addrValues;\n\n mapping (string => string) public stringValues;\n\n mapping (string => bytes32) public bytes32Values;\n\n\n\n function logUint(string memory _id, uint _value) public {\n\n uintValues[_id] = _value;\n\n }\n\n\n\n function logAddr(string memory _id, address _value) public {\n\n addrValues[_id] = _value;\n\n }\n\n\n\n function logString(string memory _id, string memory _value) public {\n\n stringValues[_id] = _value;\n\n }\n\n\n\n function logBytes32(string memory _id, bytes32 _value) public {\n\n bytes32Values[_id] = _value;\n\n }\n\n}\n\ncontract Discount {\n\n address public owner;\n\n mapping(address => CustomServiceFee) public serviceFees;\n\n\n\n uint256 constant MAX_SERVICE_FEE = 400;\n\n\n\n struct CustomServiceFee {\n\n bool active;\n\n uint256 amount;\n\n }\n\n\n\n constructor() public {\n\n owner = msg.sender;\n\n }\n\n\n\n function isCustomFeeSet(address _user) public view returns (bool) {\n\n return serviceFees[_user].active;\n\n }\n\n\n\n function getCustomServiceFee(address _user) public view returns (uint256) {\n\n return serviceFees[_user].amount;\n\n }\n\n\n\n function setServiceFee(address _user, uint256 _fee) public {\n\n require(msg.sender == owner, \"Only owner\");\n\n require(_fee >= MAX_SERVICE_FEE || _fee == 0);\n\n\n\n serviceFees[_user] = CustomServiceFee({active: true, amount: _fee});\n\n }\n\n\n\n function disableServiceFee(address _user) public {\n\n require(msg.sender == owner, \"Only owner\");\n\n\n\n serviceFees[_user] = CustomServiceFee({active: false, amount: 0});\n\n }\n\n}\n\ncontract DydxFlashLoanBase {\n\n using SafeMath for uint256;\n\n\n\n address public constant SOLO_MARGIN_ADDRESS = 0x1E0447b19BB6EcFdAe1e4AE1694b0C3659614e4e;\n\n\n\n function _getMarketIdFromTokenAddress(address token)\n\n internal\n\n view\n\n returns (uint256)\n\n {\n\n return 0;\n\n }\n\n\n\n function _getRepaymentAmountInternal(uint256 amount)\n\n internal\n\n view\n\n returns (uint256)\n\n {\n\n // Needs to be overcollateralize\n\n // Needs to provide +2 wei to be safe\n\n return amount.add(2);\n\n }\n\n\n\n function _getAccountInfo() internal view returns (Account.Info memory) {\n\n return Account.Info({owner: address(this), number: 1});\n\n }\n\n\n\n function _getWithdrawAction(uint marketId, uint256 amount, address contractAddr)\n\n internal\n\n view\n\n returns (Actions.ActionArgs memory)\n\n {\n\n return\n\n Actions.ActionArgs({\n\n actionType: Actions.ActionType.Withdraw,\n\n accountId: 0,\n\n amount: Types.AssetAmount({\n\n sign: false,\n\n denomination: Types.AssetDenomination.Wei,\n\n ref: Types.AssetReference.Delta,\n\n value: amount\n\n }),\n\n primaryMarketId: marketId,\n\n secondaryMarketId: 0,\n\n otherAddress: contractAddr,\n\n otherAccountId: 0,\n\n data: \"\"\n\n });\n\n }\n\n\n\n function _getCallAction(bytes memory data, address contractAddr)\n\n internal\n\n view\n\n returns (Actions.ActionArgs memory)\n\n {\n\n return\n\n Actions.ActionArgs({\n\n actionType: Actions.ActionType.Call,\n\n accountId: 0,\n\n amount: Types.AssetAmount({\n\n sign: false,\n\n denomination: Types.AssetDenomination.Wei,\n\n ref: Types.AssetReference.Delta,\n\n value: 0\n\n }),\n\n primaryMarketId: 0,\n\n secondaryMarketId: 0,\n\n otherAddress: contractAddr,\n\n otherAccountId: 0,\n\n data: data\n\n });\n\n }\n\n\n\n function _getDepositAction(uint marketId, uint256 amount, address contractAddr)\n\n internal\n\n view\n\n returns (Actions.ActionArgs memory)\n\n {\n\n return\n\n Actions.ActionArgs({\n\n actionType: Actions.ActionType.Deposit,\n\n accountId: 0,\n\n amount: Types.AssetAmount({\n\n sign: true,\n\n denomination: Types.AssetDenomination.Wei,\n\n ref: Types.AssetReference.Delta,\n\n value: amount\n\n }),\n\n primaryMarketId: marketId,\n\n secondaryMarketId: 0,\n\n otherAddress: contractAddr,\n\n otherAccountId: 0,\n\n data: \"\"\n\n });\n\n }\n\n}\n\ncontract ExchangeDataParser {\n\n function decodeExchangeData(\n\n SaverExchangeCore.ExchangeData memory exchangeData\n\n ) internal pure returns (address[4] memory, uint[4] memory, bytes memory) {\n\n return (\n\n [exchangeData.srcAddr, exchangeData.destAddr, exchangeData.exchangeAddr, exchangeData.wrapper],\n\n [exchangeData.srcAmount, exchangeData.destAmount, exchangeData.minPrice, exchangeData.price0x],\n\n exchangeData.callData\n\n );\n\n }\n\n\n\n function encodeExchangeData(\n\n address[4] memory exAddr, uint[4] memory exNum, bytes memory callData\n\n ) internal pure returns (SaverExchangeCore.ExchangeData memory) {\n\n return SaverExchangeCore.ExchangeData({\n\n srcAddr: exAddr[0],\n\n destAddr: exAddr[1],\n\n srcAmount: exNum[0],\n\n destAmount: exNum[1],\n\n minPrice: exNum[2],\n\n wrapper: exAddr[3],\n\n exchangeAddr: exAddr[2],\n\n callData: callData,\n\n price0x: exNum[3]\n\n });\n\n }\n\n}\n\ninterface IFlashLoanReceiver {\n\n function executeOperation(address _reserve, uint256 _amount, uint256 _fee, bytes calldata _params) external;\n\n}\n\nabstract contract ILendingPoolAddressesProvider {\n\n\n\n function getLendingPool() public view virtual returns (address);\n\n function setLendingPoolImpl(address _pool) public virtual;\n\n\n\n function getLendingPoolCore() public virtual view returns (address payable);\n\n function setLendingPoolCoreImpl(address _lendingPoolCore) public virtual;\n\n\n\n function getLendingPoolConfigurator() public virtual view returns (address);\n\n function setLendingPoolConfiguratorImpl(address _configurator) public virtual;\n\n\n\n function getLendingPoolDataProvider() public virtual view returns (address);\n\n function setLendingPoolDataProviderImpl(address _provider) public virtual;\n\n\n\n function getLendingPoolParametersProvider() public virtual view returns (address);\n\n function setLendingPoolParametersProviderImpl(address _parametersProvider) public virtual;\n\n\n\n function getTokenDistributor() public virtual view returns (address);\n\n function setTokenDistributor(address _tokenDistributor) public virtual;\n\n\n\n\n\n function getFeeProvider() public virtual view returns (address);\n\n function setFeeProviderImpl(address _feeProvider) public virtual;\n\n\n\n function getLendingPoolLiquidationManager() public virtual view returns (address);\n\n function setLendingPoolLiquidationManager(address _manager) public virtual;\n\n\n\n function getLendingPoolManager() public virtual view returns (address);\n\n function setLendingPoolManager(address _lendingPoolManager) public virtual;\n\n\n\n function getPriceOracle() public virtual view returns (address);\n\n function setPriceOracle(address _priceOracle) public virtual;\n\n\n\n function getLendingRateOracle() public view virtual returns (address);\n\n function setLendingRateOracle(address _lendingRateOracle) public virtual;\n\n}\n\nlibrary EthAddressLib {\n\n\n\n function ethAddress() internal pure returns(address) {\n\n return 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n }\n\n}\n\nabstract contract FlashLoanReceiverBase is IFlashLoanReceiver {\n\n\n\n using SafeERC20 for ERC20;\n\n using SafeMath for uint256;\n\n\n\n ILendingPoolAddressesProvider public addressesProvider;\n\n\n\n constructor(ILendingPoolAddressesProvider _provider) public {\n\n addressesProvider = _provider;\n\n }\n\n\n\n receive () external virtual payable {}\n\n\n\n function transferFundsBackToPoolInternal(address _reserve, uint256 _amount) internal {\n\n\n\n address payable core = addressesProvider.getLendingPoolCore();\n\n\n\n transferInternal(core,_reserve, _amount);\n\n }\n\n\n\n function transferInternal(address payable _destination, address _reserve, uint256 _amount) internal {\n\n if(_reserve == EthAddressLib.ethAddress()) {\n\n //solium-disable-next-line\n\n _destination.call{value: _amount}(\"\");\n\n return;\n\n }\n\n\n\n ERC20(_reserve).safeTransfer(_destination, _amount);\n\n\n\n\n\n }\n\n\n\n function getBalanceInternal(address _target, address _reserve) internal view returns(uint256) {\n\n if(_reserve == EthAddressLib.ethAddress()) {\n\n\n\n return _target.balance;\n\n }\n\n\n\n return ERC20(_reserve).balanceOf(_target);\n\n\n\n }\n\n}\n\ncontract GasBurner {\n\n // solhint-disable-next-line const-name-snakecase\n\n GasTokenInterface public constant gasToken = GasTokenInterface(0x0000000000b3F879cb30FE243b4Dfee438691c04);\n\n\n\n modifier burnGas(uint _amount) {\n\n if (gasToken.balanceOf(address(this)) >= _amount) {\n\n gasToken.free(_amount);\n\n }\n\n\n\n _;\n\n }\n\n}\n\nlibrary SafeERC20 {\n\n using SafeMath for uint256;\n\n using Address for address;\n\n\n\n function safeTransfer(ERC20 token, address to, uint256 value) internal {\n\n _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));\n\n }\n\n\n\n function safeTransferFrom(ERC20 token, address from, address to, uint256 value) internal {\n\n _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));\n\n }\n\n\n\n /**\n\n * @dev Deprecated. This function has issues similar to the ones found in\n\n * {IERC20-approve}, and its usage is discouraged.\n\n */\n\n function safeApprove(ERC20 token, address spender, uint256 value) internal {\n\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));\n\n }\n\n\n\n function safeIncreaseAllowance(ERC20 token, address spender, uint256 value) internal {\n\n uint256 newAllowance = token.allowance(address(this), spender).add(value);\n\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\n\n }\n\n\n\n function safeDecreaseAllowance(ERC20 token, address spender, uint256 value) internal {\n\n uint256 newAllowance = token.allowance(address(this), spender).sub(value, \"SafeERC20: decreased allowance below zero\");\n\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\n\n }\n\n\n\n function _callOptionalReturn(ERC20 token, bytes memory data) private {\n\n\n\n bytes memory returndata = address(token).functionCall(data, \"SafeERC20: low-level call failed\");\n\n if (returndata.length > 0) { // Return data is optional\n\n // solhint-disable-next-line max-line-length\n\n require(abi.decode(returndata, (bool)), \"SafeERC20: ERC20 operation did not succeed\");\n\n }\n\n }\n\n}\n\nlibrary SafeMath {\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n\n\n return c;\n\n }\n\n\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return sub(a, b, \"SafeMath: subtraction overflow\");\n\n }\n\n\n\n function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n\n\n return c;\n\n }\n\n\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n\n // benefit is lost if 'b' is also tested.\n\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n\n if (a == 0) {\n\n return 0;\n\n }\n\n\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n\n\n return c;\n\n }\n\n\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return div(a, b, \"SafeMath: division by zero\");\n\n }\n\n\n\n function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n\n\n return c;\n\n }\n\n\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return mod(a, b, \"SafeMath: modulo by zero\");\n\n }\n\n\n\n function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n require(b != 0, errorMessage);\n\n return a % b;\n\n }\n\n}\n\ncontract ZrxAllowlist is AdminAuth {\n\n\n\n mapping (address => bool) public zrxAllowlist;\n\n mapping(address => bool) private nonPayableAddrs;\n\n\n\n constructor() public {\n\n zrxAllowlist[0x6958F5e95332D93D21af0D7B9Ca85B8212fEE0A5] = true;\n\n zrxAllowlist[0x61935CbDd02287B511119DDb11Aeb42F1593b7Ef] = true;\n\n zrxAllowlist[0xDef1C0ded9bec7F1a1670819833240f027b25EfF] = true;\n\n zrxAllowlist[0x080bf510FCbF18b91105470639e9561022937712] = true;\n\n\n\n nonPayableAddrs[0x080bf510FCbF18b91105470639e9561022937712] = true;\n\n }\n\n\n\n function setAllowlistAddr(address _zrxAddr, bool _state) public onlyOwner {\n\n zrxAllowlist[_zrxAddr] = _state;\n\n }\n\n\n\n function isZrxAddr(address _zrxAddr) public view returns (bool) {\n\n return zrxAllowlist[_zrxAddr];\n\n }\n\n\n\n function addNonPayableAddr(address _nonPayableAddr) public onlyOwner {\n\n\t\tnonPayableAddrs[_nonPayableAddr] = true;\n\n\t}\n\n\n\n\tfunction removeNonPayableAddr(address _nonPayableAddr) public onlyOwner {\n\n\t\tnonPayableAddrs[_nonPayableAddr] = false;\n\n\t}\n\n\n\n\tfunction isNonPayableAddr(address _addr) public view returns(bool) {\n\n\t\treturn nonPayableAddrs[_addr];\n\n\t}\n\n}\n\ncontract AaveBasicProxy is GasBurner {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n address public constant ETH_ADDR = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n address public constant AAVE_LENDING_POOL_ADDRESSES = 0x24a42fD28C976A61Df5D00D0599C34c4f90748c8;\n\n\n\n uint16 public constant AAVE_REFERRAL_CODE = 64;\n\n\n\n /// @notice User deposits tokens to the Aave protocol\n\n /// @dev User needs to approve the DSProxy to pull the _tokenAddr tokens\n\n /// @param _tokenAddr The address of the token to be deposited\n\n /// @param _amount Amount of tokens to be deposited\n\n function deposit(address _tokenAddr, uint256 _amount) public burnGas(5) payable {\n\n address lendingPoolCore = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPoolCore();\n\n address lendingPool = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n\n\n uint ethValue = _amount;\n\n\n\n if (_tokenAddr != ETH_ADDR) {\n\n ERC20(_tokenAddr).safeTransferFrom(msg.sender, address(this), _amount);\n\n approveToken(_tokenAddr, lendingPoolCore);\n\n ethValue = 0;\n\n }\n\n\n\n ILendingPool(lendingPool).deposit{value: ethValue}(_tokenAddr, _amount, AAVE_REFERRAL_CODE);\n\n\n\n setUserUseReserveAsCollateralIfNeeded(_tokenAddr);\n\n }\n\n\n\n /// @notice User withdraws tokens from the Aave protocol\n\n /// @param _tokenAddr The address of the token to be withdrawn\n\n /// @param _aTokenAddr ATokens to be withdrawn\n\n /// @param _amount Amount of tokens to be withdrawn\n\n /// @param _wholeAmount If true we will take the whole amount on chain\n\n function withdraw(address _tokenAddr, address _aTokenAddr, uint256 _amount, bool _wholeAmount) public burnGas(8) {\n\n uint256 amount = _wholeAmount ? ERC20(_aTokenAddr).balanceOf(address(this)) : _amount;\n\n\n\n IAToken(_aTokenAddr).redeem(amount);\n\n\n\n withdrawTokens(_tokenAddr);\n\n }\n\n\n\n /// @notice User borrows tokens to the Aave protocol\n\n /// @param _tokenAddr The address of the token to be borrowed\n\n /// @param _amount Amount of tokens to be borrowed\n\n /// @param _type Send 1 for variable rate and 2 for fixed rate\n\n function borrow(address _tokenAddr, uint256 _amount, uint256 _type) public burnGas(8) {\n\n address lendingPool = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n\n\n ILendingPool(lendingPool).borrow(_tokenAddr, _amount, _type, AAVE_REFERRAL_CODE);\n\n\n\n withdrawTokens(_tokenAddr);\n\n }\n\n\n\n /// @dev User needs to approve the DSProxy to pull the _tokenAddr tokens\n\n /// @notice User paybacks tokens to the Aave protocol\n\n /// @param _tokenAddr The address of the token to be paybacked\n\n /// @param _aTokenAddr ATokens to be paybacked\n\n /// @param _amount Amount of tokens to be payed back\n\n /// @param _wholeDebt If true the _amount will be set to the whole amount of the debt\n\n function payback(address _tokenAddr, address _aTokenAddr, uint256 _amount, bool _wholeDebt) public burnGas(3) payable {\n\n address lendingPoolCore = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPoolCore();\n\n address lendingPool = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n\n\n uint256 amount = _amount;\n\n\n\n (,uint256 borrowAmount,,,,,uint256 originationFee,,,) = ILendingPool(lendingPool).getUserReserveData(_tokenAddr, address(this));\n\n\n\n if (_wholeDebt) {\n\n amount = borrowAmount;\n\n }\n\n\n\n amount += originationFee;\n\n\n\n if (_tokenAddr != ETH_ADDR) {\n\n ERC20(_tokenAddr).safeTransferFrom(msg.sender, address(this), amount);\n\n approveToken(_tokenAddr, lendingPoolCore);\n\n }\n\n\n\n ILendingPool(lendingPool).repay{value: msg.value}(_tokenAddr, amount, payable(address(this)));\n\n\n\n withdrawTokens(_tokenAddr);\n\n }\n\n\n\n /// @dev User needs to approve the DSProxy to pull the _tokenAddr tokens\n\n /// @notice User paybacks tokens to the Aave protocol\n\n /// @param _tokenAddr The address of the token to be paybacked\n\n /// @param _aTokenAddr ATokens to be paybacked\n\n /// @param _amount Amount of tokens to be payed back\n\n /// @param _wholeDebt If true the _amount will be set to the whole amount of the debt\n\n function paybackOnBehalf(address _tokenAddr, address _aTokenAddr, uint256 _amount, bool _wholeDebt, address payable _onBehalf) public burnGas(3) payable {\n\n address lendingPoolCore = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPoolCore();\n\n address lendingPool = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n\n\n uint256 amount = _amount;\n\n\n\n (,uint256 borrowAmount,,,,,uint256 originationFee,,,) = ILendingPool(lendingPool).getUserReserveData(_tokenAddr, _onBehalf);\n\n\n\n if (_wholeDebt) {\n\n amount = borrowAmount;\n\n }\n\n\n\n amount += originationFee;\n\n\n\n if (_tokenAddr != ETH_ADDR) {\n\n ERC20(_tokenAddr).safeTransferFrom(msg.sender, address(this), amount);\n\n approveToken(_tokenAddr, lendingPoolCore);\n\n }\n\n\n\n ILendingPool(lendingPool).repay{value: msg.value}(_tokenAddr, amount, _onBehalf);\n\n\n\n withdrawTokens(_tokenAddr);\n\n }\n\n\n\n /// @notice Helper method to withdraw tokens from the DSProxy\n\n /// @param _tokenAddr Address of the token to be withdrawn\n\n function withdrawTokens(address _tokenAddr) public {\n\n uint256 amount = _tokenAddr == ETH_ADDR ? address(this).balance : ERC20(_tokenAddr).balanceOf(address(this));\n\n\n\n if (amount > 0) {\n\n if (_tokenAddr != ETH_ADDR) {\n\n ERC20(_tokenAddr).safeTransfer(msg.sender, amount);\n\n } else {\n\n msg.sender.transfer(amount);\n\n }\n\n }\n\n }\n\n\n\n /// @notice Approves token contract to pull underlying tokens from the DSProxy\n\n /// @param _tokenAddr Token we are trying to approve\n\n /// @param _caller Address which will gain the approval\n\n function approveToken(address _tokenAddr, address _caller) internal {\n\n if (_tokenAddr != ETH_ADDR) {\n\n ERC20(_tokenAddr).safeApprove(_caller, 0);\n\n ERC20(_tokenAddr).safeApprove(_caller, uint256(-1));\n\n }\n\n }\n\n\n\n function setUserUseReserveAsCollateralIfNeeded(address _tokenAddr) public {\n\n address lendingPool = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n (,,,,,,,,,bool collateralEnabled) = ILendingPool(lendingPool).getUserReserveData(_tokenAddr, address(this));\n\n\n\n if (!collateralEnabled) {\n\n ILendingPool(lendingPool).setUserUseReserveAsCollateral(_tokenAddr, true);\n\n }\n\n }\n\n\n\n function setUserUseReserveAsCollateral(address _tokenAddr, bool _true) public {\n\n address lendingPool = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n\n\n ILendingPool(lendingPool).setUserUseReserveAsCollateral(_tokenAddr, _true);\n\n }\n\n\n\n function swapBorrowRateMode(address _reserve) public {\n\n address lendingPool = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n\n\n ILendingPool(lendingPool).swapBorrowRateMode(_reserve);\n\n }\n\n}\n\ncontract AaveLoanInfo is AaveSafetyRatio {\n\n\n\n\tstruct LoanData {\n\n address user;\n\n uint128 ratio;\n\n address[] collAddr;\n\n address[] borrowAddr;\n\n uint256[] collAmounts;\n\n uint256[] borrowAmounts;\n\n }\n\n\n\n struct TokenInfo {\n\n address aTokenAddress;\n\n address underlyingTokenAddress;\n\n uint256 collateralFactor;\n\n uint256 price;\n\n }\n\n\n\n struct TokenInfoFull {\n\n \taddress aTokenAddress;\n\n address underlyingTokenAddress;\n\n uint256 supplyRate;\n\n uint256 borrowRate;\n\n uint256 totalSupply;\n\n uint256 availableLiquidity;\n\n uint256 totalBorrow;\n\n uint256 collateralFactor;\n\n uint256 price;\n\n bool usageAsCollateralEnabled;\n\n }\n\n\n\n /// @notice Calcualted the ratio of coll/debt for a compound user\n\n /// @param _user Address of the user\n\n function getRatio(address _user) public view returns (uint256) {\n\n // For each asset the account is in\n\n return getSafetyRatio(_user);\n\n }\n\n\n\n /// @notice Fetches Aave prices for tokens\n\n /// @param _tokens Arr. of tokens for which to get the prices\n\n /// @return prices Array of prices\n\n function getPrices(address[] memory _tokens) public view returns (uint256[] memory prices) {\n\n address priceOracleAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getPriceOracle();\n\n prices = new uint[](_tokens.length);\n\n\n\n for (uint256 i = 0; i < _tokens.length; ++i) {\n\n prices[i] = IPriceOracleGetterAave(priceOracleAddress).getAssetPrice(_tokens[i]);\n\n }\n\n }\n\n\n\n /// @notice Fetches Aave collateral factors for tokens\n\n /// @param _tokens Arr. of tokens for which to get the coll. factors\n\n /// @return collFactors Array of coll. factors\n\n function getCollFactors(address[] memory _tokens) public view returns (uint256[] memory collFactors) {\n\n \taddress lendingPoolCoreAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPoolCore();\n\n collFactors = new uint256[](_tokens.length);\n\n\n\n for (uint256 i = 0; i < _tokens.length; ++i) {\n\n \t(,collFactors[i],,) = ILendingPool(lendingPoolCoreAddress).getReserveConfiguration(_tokens[i]);\n\n }\n\n }\n\n\n\n function getTokenBalances(address _user, address[] memory _tokens) public view returns (uint256[] memory balances, uint256[] memory borrows, bool[] memory enabledAsCollateral) {\n\n \taddress lendingPoolAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n\n\n balances = new uint256[](_tokens.length);\n\n borrows = new uint256[](_tokens.length);\n\n enabledAsCollateral = new bool[](_tokens.length);\n\n\n\n for (uint256 i = 0; i < _tokens.length; i++) {\n\n address asset = _tokens[i];\n\n\n\n (balances[i], borrows[i],,,,,,,,enabledAsCollateral[i]) = ILendingPool(lendingPoolAddress).getUserReserveData(asset, _user);\n\n }\n\n }\n\n\n\n /// @notice Calcualted the ratio of coll/debt for an aave user\n\n /// @param _users Addresses of the user\n\n /// @return ratios Array of ratios\n\n function getRatios(address[] memory _users) public view returns (uint256[] memory ratios) {\n\n ratios = new uint256[](_users.length);\n\n\n\n for (uint256 i = 0; i < _users.length; ++i) {\n\n ratios[i] = getSafetyRatio(_users[i]);\n\n }\n\n }\n\n\n\n /// @notice Information about reserves\n\n /// @param _tokenAddresses Array of tokens addresses\n\n /// @return tokens Array of reserves infomartion\n\n function getTokensInfo(address[] memory _tokenAddresses) public view returns(TokenInfo[] memory tokens) {\n\n \taddress lendingPoolCoreAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPoolCore();\n\n \taddress priceOracleAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getPriceOracle();\n\n\n\n tokens = new TokenInfo[](_tokenAddresses.length);\n\n\n\n for (uint256 i = 0; i < _tokenAddresses.length; ++i) {\n\n \t(,uint256 ltv,,) = ILendingPool(lendingPoolCoreAddress).getReserveConfiguration(_tokenAddresses[i]);\n\n\n\n tokens[i] = TokenInfo({\n\n aTokenAddress: ILendingPool(lendingPoolCoreAddress).getReserveATokenAddress(_tokenAddresses[i]),\n\n underlyingTokenAddress: _tokenAddresses[i],\n\n collateralFactor: ltv,\n\n price: IPriceOracleGetterAave(priceOracleAddress).getAssetPrice(_tokenAddresses[i])\n\n });\n\n }\n\n }\n\n\n\n /// @notice Information about reserves\n\n /// @param _tokenAddresses Array of token addresses\n\n /// @return tokens Array of reserves infomartion\n\n function getFullTokensInfo(address[] memory _tokenAddresses) public view returns(TokenInfoFull[] memory tokens) {\n\n \taddress lendingPoolCoreAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPoolCore();\n\n \taddress priceOracleAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getPriceOracle();\n\n\n\n tokens = new TokenInfoFull[](_tokenAddresses.length);\n\n\n\n for (uint256 i = 0; i < _tokenAddresses.length; ++i) {\n\n \t(,uint256 ltv,,bool usageAsCollateralEnabled) = ILendingPool(lendingPoolCoreAddress).getReserveConfiguration(_tokenAddresses[i]);\n\n\n\n tokens[i] = TokenInfoFull({\n\n \taTokenAddress: ILendingPool(lendingPoolCoreAddress).getReserveATokenAddress(_tokenAddresses[i]),\n\n underlyingTokenAddress: _tokenAddresses[i],\n\n supplyRate: ILendingPool(lendingPoolCoreAddress).getReserveCurrentLiquidityRate(_tokenAddresses[i]),\n\n borrowRate: ILendingPool(lendingPoolCoreAddress).getReserveCurrentVariableBorrowRate(_tokenAddresses[i]),\n\n totalSupply: ILendingPool(lendingPoolCoreAddress).getReserveTotalLiquidity(_tokenAddresses[i]),\n\n availableLiquidity: ILendingPool(lendingPoolCoreAddress).getReserveAvailableLiquidity(_tokenAddresses[i]),\n\n totalBorrow: ILendingPool(lendingPoolCoreAddress).getReserveTotalBorrowsVariable(_tokenAddresses[i]),\n\n collateralFactor: ltv,\n\n price: IPriceOracleGetterAave(priceOracleAddress).getAssetPrice(_tokenAddresses[i]),\n\n usageAsCollateralEnabled: usageAsCollateralEnabled\n\n });\n\n }\n\n }\n\n\n\n\n\n /// @notice Fetches all the collateral/debt address and amounts, denominated in ether\n\n /// @param _user Address of the user\n\n /// @return data LoanData information\n\n function getLoanData(address _user) public view returns (LoanData memory data) {\n\n address lendingPoolAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n address priceOracleAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getPriceOracle();\n\n\n\n address[] memory reserves = ILendingPool(lendingPoolAddress).getReserves();\n\n\n\n data = LoanData({\n\n user: _user,\n\n ratio: 0,\n\n collAddr: new address[](reserves.length),\n\n borrowAddr: new address[](reserves.length),\n\n collAmounts: new uint[](reserves.length),\n\n borrowAmounts: new uint[](reserves.length)\n\n });\n\n\n\n uint64 collPos = 0;\n\n uint64 borrowPos = 0;\n\n\n\n for (uint64 i = 0; i < reserves.length; i++) {\n\n address reserve = reserves[i];\n\n\n\n (uint256 aTokenBalance, uint256 borrowBalance,,,,,,,,) = ILendingPool(lendingPoolAddress).getUserReserveData(reserve, _user);\n\n uint256 price = IPriceOracleGetterAave(priceOracleAddress).getAssetPrice(reserves[i]);\n\n\n\n if (aTokenBalance > 0) {\n\n \tuint256 userTokenBalanceEth = wmul(aTokenBalance, price) * (10 ** (18 - getDecimals(reserve)));\n\n \tdata.collAddr[collPos] = reserve;\n\n data.collAmounts[collPos] = userTokenBalanceEth;\n\n collPos++;\n\n \t}\n\n\n\n // Sum up debt in Eth\n\n if (borrowBalance > 0) {\n\n \tuint256 userBorrowBalanceEth = wmul(borrowBalance, price) * (10 ** (18 - getDecimals(reserve)));\n\n data.borrowAddr[borrowPos] = reserve;\n\n data.borrowAmounts[borrowPos] = userBorrowBalanceEth;\n\n borrowPos++;\n\n }\n\n }\n\n\n\n data.ratio = uint128(getSafetyRatio(_user));\n\n\n\n return data;\n\n }\n\n\n\n /// @notice Fetches all the collateral/debt address and amounts, denominated in ether\n\n /// @param _users Addresses of the user\n\n /// @return loans Array of LoanData information\n\n function getLoanDataArr(address[] memory _users) public view returns (LoanData[] memory loans) {\n\n loans = new LoanData[](_users.length);\n\n\n\n for (uint i = 0; i < _users.length; ++i) {\n\n loans[i] = getLoanData(_users[i]);\n\n }\n\n }\n\n\n\n\n\n function getDecimals(address _token) internal view returns (uint256) {\n\n if (_token == ETH_ADDR) return 18;\n\n\n\n return ERC20(_token).decimals();\n\n }\n\n}\n\ncontract AaveMonitor is AdminAuth, DSMath, AaveSafetyRatio, GasBurner {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n enum Method { Boost, Repay }\n\n\n\n uint public REPAY_GAS_TOKEN = 19;\n\n uint public BOOST_GAS_TOKEN = 19;\n\n\n\n uint public MAX_GAS_PRICE = 200000000000; // 200 gwei\n\n\n\n uint public REPAY_GAS_COST = 2000000;\n\n uint public BOOST_GAS_COST = 2000000;\n\n\n\n address public constant DEFISAVER_LOGGER = 0x5c55B921f590a89C1Ebe84dF170E655a82b62126;\n\n\n\n AaveMonitorProxy public aaveMonitorProxy;\n\n AaveSubscriptions public subscriptionsContract;\n\n address public aaveSaverProxy;\n\n\n\n DefisaverLogger public logger = DefisaverLogger(DEFISAVER_LOGGER);\n\n\n\n modifier onlyApproved() {\n\n require(BotRegistry(BOT_REGISTRY_ADDRESS).botList(msg.sender), \"Not auth bot\");\n\n _;\n\n }\n\n\n\n /// @param _aaveMonitorProxy Proxy contracts that actually is authorized to call DSProxy\n\n /// @param _subscriptions Subscriptions contract for Aave positions\n\n /// @param _aaveSaverProxy Contract that actually performs Repay/Boost\n\n constructor(address _aaveMonitorProxy, address _subscriptions, address _aaveSaverProxy) public {\n\n aaveMonitorProxy = AaveMonitorProxy(_aaveMonitorProxy);\n\n subscriptionsContract = AaveSubscriptions(_subscriptions);\n\n aaveSaverProxy = _aaveSaverProxy;\n\n }\n\n\n\n /// @notice Bots call this method to repay for user when conditions are met\n\n /// @dev If the contract ownes gas token it will try and use it for gas price reduction\n\n /// @param _exData Exchange data\n\n /// @param _user The actual address that owns the Aave position\n\n function repayFor(\n\n SaverExchangeCore.ExchangeData memory _exData,\n\n address _user\n\n ) public payable onlyApproved burnGas(REPAY_GAS_TOKEN) {\n\n\n\n (bool isAllowed, uint ratioBefore) = canCall(Method.Repay, _user);\n\n require(isAllowed); // check if conditions are met\n\n\n\n uint256 gasCost = calcGasCost(REPAY_GAS_COST);\n\n\n\n aaveMonitorProxy.callExecute{value: msg.value}(\n\n _user,\n\n aaveSaverProxy,\n\n abi.encodeWithSignature(\n\n \"repay((address,address,uint256,uint256,uint256,address,address,bytes,uint256),uint256)\",\n\n _exData,\n\n gasCost\n\n )\n\n );\n\n\n\n (bool isGoodRatio, uint ratioAfter) = ratioGoodAfter(Method.Repay, _user);\n\n require(isGoodRatio); // check if the after result of the actions is good\n\n\n\n returnEth();\n\n\n\n logger.Log(address(this), _user, \"AutomaticAaveRepay\", abi.encode(ratioBefore, ratioAfter));\n\n }\n\n\n\n /// @notice Bots call this method to boost for user when conditions are met\n\n /// @dev If the contract ownes gas token it will try and use it for gas price reduction\n\n /// @param _exData Exchange data\n\n /// @param _user The actual address that owns the Aave position\n\n function boostFor(\n\n SaverExchangeCore.ExchangeData memory _exData,\n\n address _user\n\n ) public payable onlyApproved burnGas(BOOST_GAS_TOKEN) {\n\n\n\n (bool isAllowed, uint ratioBefore) = canCall(Method.Boost, _user);\n\n require(isAllowed); // check if conditions are met\n\n\n\n uint256 gasCost = calcGasCost(BOOST_GAS_COST);\n\n\n\n aaveMonitorProxy.callExecute{value: msg.value}(\n\n _user,\n\n aaveSaverProxy,\n\n abi.encodeWithSignature(\n\n \"boost((address,address,uint256,uint256,uint256,address,address,bytes,uint256),uint256)\",\n\n _exData,\n\n gasCost\n\n )\n\n );\n\n\n\n\n\n (bool isGoodRatio, uint ratioAfter) = ratioGoodAfter(Method.Boost, _user);\n\n require(isGoodRatio); // check if the after result of the actions is good\n\n\n\n returnEth();\n\n\n\n logger.Log(address(this), _user, \"AutomaticAaveBoost\", abi.encode(ratioBefore, ratioAfter));\n\n }\n\n\n\n/******************* INTERNAL METHODS ********************************/\n\n function returnEth() internal {\n\n // return if some eth left\n\n if (address(this).balance > 0) {\n\n msg.sender.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n/******************* STATIC METHODS ********************************/\n\n\n\n /// @notice Checks if Boost/Repay could be triggered for the CDP\n\n /// @dev Called by AaveMonitor to enforce the min/max check\n\n /// @param _method Type of action to be called\n\n /// @param _user The actual address that owns the Aave position\n\n /// @return Boolean if it can be called and the ratio\n\n function canCall(Method _method, address _user) public view returns(bool, uint) {\n\n bool subscribed = subscriptionsContract.isSubscribed(_user);\n\n AaveSubscriptions.AaveHolder memory holder = subscriptionsContract.getHolder(_user);\n\n\n\n // check if cdp is subscribed\n\n if (!subscribed) return (false, 0);\n\n\n\n // check if boost and boost allowed\n\n if (_method == Method.Boost && !holder.boostEnabled) return (false, 0);\n\n\n\n uint currRatio = getSafetyRatio(_user);\n\n\n\n if (_method == Method.Repay) {\n\n return (currRatio < holder.minRatio, currRatio);\n\n } else if (_method == Method.Boost) {\n\n return (currRatio > holder.maxRatio, currRatio);\n\n }\n\n }\n\n\n\n /// @dev After the Boost/Repay check if the ratio doesn't trigger another call\n\n /// @param _method Type of action to be called\n\n /// @param _user The actual address that owns the Aave position\n\n /// @return Boolean if the recent action preformed correctly and the ratio\n\n function ratioGoodAfter(Method _method, address _user) public view returns(bool, uint) {\n\n AaveSubscriptions.AaveHolder memory holder;\n\n\n\n holder= subscriptionsContract.getHolder(_user);\n\n\n\n uint currRatio = getSafetyRatio(_user);\n\n\n\n if (_method == Method.Repay) {\n\n return (currRatio < holder.maxRatio, currRatio);\n\n } else if (_method == Method.Boost) {\n\n return (currRatio > holder.minRatio, currRatio);\n\n }\n\n }\n\n\n\n /// @notice Calculates gas cost (in Eth) of tx\n\n /// @dev Gas price is limited to MAX_GAS_PRICE to prevent attack of draining user CDP\n\n /// @param _gasAmount Amount of gas used for the tx\n\n function calcGasCost(uint _gasAmount) public view returns (uint) {\n\n uint gasPrice = tx.gasprice <= MAX_GAS_PRICE ? tx.gasprice : MAX_GAS_PRICE;\n\n\n\n return mul(gasPrice, _gasAmount);\n\n }\n\n\n\n/******************* OWNER ONLY OPERATIONS ********************************/\n\n\n\n /// @notice Allows owner to change gas cost for boost operation, but only up to 3 millions\n\n /// @param _gasCost New gas cost for boost method\n\n function changeBoostGasCost(uint _gasCost) public onlyOwner {\n\n require(_gasCost < 3000000);\n\n\n\n BOOST_GAS_COST = _gasCost;\n\n }\n\n\n\n /// @notice Allows owner to change gas cost for repay operation, but only up to 3 millions\n\n /// @param _gasCost New gas cost for repay method\n\n function changeRepayGasCost(uint _gasCost) public onlyOwner {\n\n require(_gasCost < 3000000);\n\n\n\n REPAY_GAS_COST = _gasCost;\n\n }\n\n\n\n /// @notice Allows owner to change max gas price\n\n /// @param _maxGasPrice New max gas price\n\n function changeMaxGasPrice(uint _maxGasPrice) public onlyOwner {\n\n require(_maxGasPrice < 500000000000);\n\n\n\n MAX_GAS_PRICE = _maxGasPrice;\n\n }\n\n\n\n /// @notice Allows owner to change gas token amount\n\n /// @param _gasTokenAmount New gas token amount\n\n /// @param _repay true if repay gas token, false if boost gas token\n\n function changeGasTokenAmount(uint _gasTokenAmount, bool _repay) public onlyOwner {\n\n if (_repay) {\n\n REPAY_GAS_TOKEN = _gasTokenAmount;\n\n } else {\n\n BOOST_GAS_TOKEN = _gasTokenAmount;\n\n }\n\n }\n\n}\n\ncontract AaveMonitorProxy is AdminAuth {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n uint public CHANGE_PERIOD;\n\n address public monitor;\n\n address public newMonitor;\n\n address public lastMonitor;\n\n uint public changeRequestedTimestamp;\n\n\n\n mapping(address => bool) public allowed;\n\n\n\n event MonitorChangeInitiated(address oldMonitor, address newMonitor);\n\n event MonitorChangeCanceled();\n\n event MonitorChangeFinished(address monitor);\n\n event MonitorChangeReverted(address monitor);\n\n\n\n // if someone who is allowed become malicious, owner can't be changed\n\n modifier onlyAllowed() {\n\n require(allowed[msg.sender] || msg.sender == owner);\n\n _;\n\n }\n\n\n\n modifier onlyMonitor() {\n\n require (msg.sender == monitor);\n\n _;\n\n }\n\n\n\n constructor(uint _changePeriod) public {\n\n CHANGE_PERIOD = _changePeriod * 1 days;\n\n }\n\n\n\n /// @notice Only monitor contract is able to call execute on users proxy\n\n /// @param _owner Address of cdp owner (users DSProxy address)\n\n /// @param _aaveSaverProxy Address of AaveSaverProxy\n\n /// @param _data Data to send to AaveSaverProxy\n\n function callExecute(address _owner, address _aaveSaverProxy, bytes memory _data) public payable onlyMonitor {\n\n // execute reverts if calling specific method fails\n\n DSProxyInterface(_owner).execute{value: msg.value}(_aaveSaverProxy, _data);\n\n\n\n // return if anything left\n\n if (address(this).balance > 0) {\n\n msg.sender.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n /// @notice Allowed users are able to set Monitor contract without any waiting period first time\n\n /// @param _monitor Address of Monitor contract\n\n function setMonitor(address _monitor) public onlyAllowed {\n\n require(monitor == address(0));\n\n monitor = _monitor;\n\n }\n\n\n\n /// @notice Allowed users are able to start procedure for changing monitor\n\n /// @dev after CHANGE_PERIOD needs to call confirmNewMonitor to actually make a change\n\n /// @param _newMonitor address of new monitor\n\n function changeMonitor(address _newMonitor) public onlyAllowed {\n\n require(changeRequestedTimestamp == 0);\n\n\n\n changeRequestedTimestamp = now;\n\n lastMonitor = monitor;\n\n newMonitor = _newMonitor;\n\n\n\n emit MonitorChangeInitiated(lastMonitor, newMonitor);\n\n }\n\n\n\n /// @notice At any point allowed users are able to cancel monitor change\n\n function cancelMonitorChange() public onlyAllowed {\n\n require(changeRequestedTimestamp > 0);\n\n\n\n changeRequestedTimestamp = 0;\n\n newMonitor = address(0);\n\n\n\n emit MonitorChangeCanceled();\n\n }\n\n\n\n /// @notice Anyone is able to confirm new monitor after CHANGE_PERIOD if process is started\n\n function confirmNewMonitor() public onlyAllowed {\n\n require((changeRequestedTimestamp + CHANGE_PERIOD) < now);\n\n require(changeRequestedTimestamp != 0);\n\n require(newMonitor != address(0));\n\n\n\n monitor = newMonitor;\n\n newMonitor = address(0);\n\n changeRequestedTimestamp = 0;\n\n\n\n emit MonitorChangeFinished(monitor);\n\n }\n\n\n\n /// @notice Its possible to revert monitor to last used monitor\n\n function revertMonitor() public onlyAllowed {\n\n require(lastMonitor != address(0));\n\n\n\n monitor = lastMonitor;\n\n\n\n emit MonitorChangeReverted(monitor);\n\n }\n\n\n\n\n\n /// @notice Allowed users are able to add new allowed user\n\n /// @param _user Address of user that will be allowed\n\n function addAllowed(address _user) public onlyAllowed {\n\n allowed[_user] = true;\n\n }\n\n\n\n /// @notice Allowed users are able to remove allowed user\n\n /// @dev owner is always allowed even if someone tries to remove it from allowed mapping\n\n /// @param _user Address of allowed user\n\n function removeAllowed(address _user) public onlyAllowed {\n\n allowed[_user] = false;\n\n }\n\n\n\n function setChangePeriod(uint _periodInDays) public onlyAllowed {\n\n require(_periodInDays * 1 days > CHANGE_PERIOD);\n\n\n\n CHANGE_PERIOD = _periodInDays * 1 days;\n\n }\n\n\n\n /// @notice In case something is left in contract, owner is able to withdraw it\n\n /// @param _token address of token to withdraw balance\n\n function withdrawToken(address _token) public onlyOwner {\n\n uint balance = ERC20(_token).balanceOf(address(this));\n\n ERC20(_token).safeTransfer(msg.sender, balance);\n\n }\n\n\n\n /// @notice In case something is left in contract, owner is able to withdraw it\n\n function withdrawEth() public onlyOwner {\n\n uint balance = address(this).balance;\n\n msg.sender.transfer(balance);\n\n }\n\n}\n\ncontract AaveSubscriptions is AdminAuth {\n\n\n\n struct AaveHolder {\n\n address user;\n\n uint128 minRatio;\n\n uint128 maxRatio;\n\n uint128 optimalRatioBoost;\n\n uint128 optimalRatioRepay;\n\n bool boostEnabled;\n\n }\n\n\n\n struct SubPosition {\n\n uint arrPos;\n\n bool subscribed;\n\n }\n\n\n\n AaveHolder[] public subscribers;\n\n mapping (address => SubPosition) public subscribersPos;\n\n\n\n uint public changeIndex;\n\n\n\n event Subscribed(address indexed user);\n\n event Unsubscribed(address indexed user);\n\n event Updated(address indexed user);\n\n event ParamUpdates(address indexed user, uint128, uint128, uint128, uint128, bool);\n\n\n\n /// @dev Called by the DSProxy contract which owns the Aave position\n\n /// @notice Adds the users Aave poistion in the list of subscriptions so it can be monitored\n\n /// @param _minRatio Minimum ratio below which repay is triggered\n\n /// @param _maxRatio Maximum ratio after which boost is triggered\n\n /// @param _optimalBoost Ratio amount which boost should target\n\n /// @param _optimalRepay Ratio amount which repay should target\n\n /// @param _boostEnabled Boolean determing if boost is enabled\n\n function subscribe(uint128 _minRatio, uint128 _maxRatio, uint128 _optimalBoost, uint128 _optimalRepay, bool _boostEnabled) external {\n\n\n\n // if boost is not enabled, set max ratio to max uint\n\n uint128 localMaxRatio = _boostEnabled ? _maxRatio : uint128(-1);\n\n require(checkParams(_minRatio, localMaxRatio), \"Must be correct params\");\n\n\n\n SubPosition storage subInfo = subscribersPos[msg.sender];\n\n\n\n AaveHolder memory subscription = AaveHolder({\n\n minRatio: _minRatio,\n\n maxRatio: localMaxRatio,\n\n optimalRatioBoost: _optimalBoost,\n\n optimalRatioRepay: _optimalRepay,\n\n user: msg.sender,\n\n boostEnabled: _boostEnabled\n\n });\n\n\n\n changeIndex++;\n\n\n\n if (subInfo.subscribed) {\n\n subscribers[subInfo.arrPos] = subscription;\n\n\n\n emit Updated(msg.sender);\n\n emit ParamUpdates(msg.sender, _minRatio, localMaxRatio, _optimalBoost, _optimalRepay, _boostEnabled);\n\n } else {\n\n subscribers.push(subscription);\n\n\n\n subInfo.arrPos = subscribers.length - 1;\n\n subInfo.subscribed = true;\n\n\n\n emit Subscribed(msg.sender);\n\n }\n\n }\n\n\n\n /// @notice Called by the users DSProxy\n\n /// @dev Owner who subscribed cancels his subscription\n\n function unsubscribe() external {\n\n _unsubscribe(msg.sender);\n\n }\n\n\n\n /// @dev Checks limit if minRatio is bigger than max\n\n /// @param _minRatio Minimum ratio, bellow which repay can be triggered\n\n /// @param _maxRatio Maximum ratio, over which boost can be triggered\n\n /// @return Returns bool if the params are correct\n\n function checkParams(uint128 _minRatio, uint128 _maxRatio) internal pure returns (bool) {\n\n\n\n if (_minRatio > _maxRatio) {\n\n return false;\n\n }\n\n\n\n return true;\n\n }\n\n\n\n /// @dev Internal method to remove a subscriber from the list\n\n /// @param _user The actual address that owns the Aave position\n\n function _unsubscribe(address _user) internal {\n\n require(subscribers.length > 0, \"Must have subscribers in the list\");\n\n\n\n SubPosition storage subInfo = subscribersPos[_user];\n\n\n\n require(subInfo.subscribed, \"Must first be subscribed\");\n\n\n\n address lastOwner = subscribers[subscribers.length - 1].user;\n\n\n\n SubPosition storage subInfo2 = subscribersPos[lastOwner];\n\n subInfo2.arrPos = subInfo.arrPos;\n\n\n\n subscribers[subInfo.arrPos] = subscribers[subscribers.length - 1];\n\n subscribers.pop(); // remove last element and reduce arr length\n\n\n\n changeIndex++;\n\n subInfo.subscribed = false;\n\n subInfo.arrPos = 0;\n\n\n\n emit Unsubscribed(msg.sender);\n\n }\n\n\n\n /// @dev Checks if the user is subscribed\n\n /// @param _user The actual address that owns the Aave position\n\n /// @return If the user is subscribed\n\n function isSubscribed(address _user) public view returns (bool) {\n\n SubPosition storage subInfo = subscribersPos[_user];\n\n\n\n return subInfo.subscribed;\n\n }\n\n\n\n /// @dev Returns subscribtion information about a user\n\n /// @param _user The actual address that owns the Aave position\n\n /// @return Subscription information about the user if exists\n\n function getHolder(address _user) public view returns (AaveHolder memory) {\n\n SubPosition storage subInfo = subscribersPos[_user];\n\n\n\n return subscribers[subInfo.arrPos];\n\n }\n\n\n\n /// @notice Helper method to return all the subscribed CDPs\n\n /// @return List of all subscribers\n\n function getSubscribers() public view returns (AaveHolder[] memory) {\n\n return subscribers;\n\n }\n\n\n\n /// @notice Helper method for the frontend, returns all the subscribed CDPs paginated\n\n /// @param _page What page of subscribers you want\n\n /// @param _perPage Number of entries per page\n\n /// @return List of all subscribers for that page\n\n function getSubscribersByPage(uint _page, uint _perPage) public view returns (AaveHolder[] memory) {\n\n AaveHolder[] memory holders = new AaveHolder[](_perPage);\n\n\n\n uint start = _page * _perPage;\n\n uint end = start + _perPage;\n\n\n\n end = (end > holders.length) ? holders.length : end;\n\n\n\n uint count = 0;\n\n for (uint i = start; i < end; i++) {\n\n holders[count] = subscribers[i];\n\n count++;\n\n }\n\n\n\n return holders;\n\n }\n\n\n\n ////////////// ADMIN METHODS ///////////////////\n\n\n\n /// @notice Admin function to unsubscribe a position\n\n /// @param _user The actual address that owns the Aave position\n\n function unsubscribeByAdmin(address _user) public onlyOwner {\n\n SubPosition storage subInfo = subscribersPos[_user];\n\n\n\n if (subInfo.subscribed) {\n\n _unsubscribe(_user);\n\n }\n\n }\n\n}\n\ncontract AaveSubscriptionsProxy is ProxyPermission {\n\n\n\n address public constant AAVE_SUBSCRIPTION_ADDRESS = 0xe08ff7A2BADb634F0b581E675E6B3e583De086FC;\n\n address public constant AAVE_MONITOR_PROXY = 0xfA560Dba3a8D0B197cA9505A2B98120DD89209AC;\n\n\n\n /// @notice Calls subscription contract and creates a DSGuard if non existent\n\n /// @param _minRatio Minimum ratio below which repay is triggered\n\n /// @param _maxRatio Maximum ratio after which boost is triggered\n\n /// @param _optimalRatioBoost Ratio amount which boost should target\n\n /// @param _optimalRatioRepay Ratio amount which repay should target\n\n /// @param _boostEnabled Boolean determing if boost is enabled\n\n function subscribe(\n\n uint128 _minRatio,\n\n uint128 _maxRatio,\n\n uint128 _optimalRatioBoost,\n\n uint128 _optimalRatioRepay,\n\n bool _boostEnabled\n\n ) public {\n\n givePermission(AAVE_MONITOR_PROXY);\n\n IAaveSubscription(AAVE_SUBSCRIPTION_ADDRESS).subscribe(\n\n _minRatio, _maxRatio, _optimalRatioBoost, _optimalRatioRepay, _boostEnabled);\n\n }\n\n\n\n /// @notice Calls subscription contract and updated existing parameters\n\n /// @dev If subscription is non existent this will create one\n\n /// @param _minRatio Minimum ratio below which repay is triggered\n\n /// @param _maxRatio Maximum ratio after which boost is triggered\n\n /// @param _optimalRatioBoost Ratio amount which boost should target\n\n /// @param _optimalRatioRepay Ratio amount which repay should target\n\n /// @param _boostEnabled Boolean determing if boost is enabled\n\n function update(\n\n uint128 _minRatio,\n\n uint128 _maxRatio,\n\n uint128 _optimalRatioBoost,\n\n uint128 _optimalRatioRepay,\n\n bool _boostEnabled\n\n ) public {\n\n IAaveSubscription(AAVE_SUBSCRIPTION_ADDRESS).subscribe(_minRatio, _maxRatio, _optimalRatioBoost, _optimalRatioRepay, _boostEnabled);\n\n }\n\n\n\n /// @notice Calls the subscription contract to unsubscribe the caller\n\n function unsubscribe() public {\n\n removePermission(AAVE_MONITOR_PROXY);\n\n IAaveSubscription(AAVE_SUBSCRIPTION_ADDRESS).unsubscribe();\n\n }\n\n}\n\ncontract AaveImport is AaveHelper, AdminAuth {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n address public constant WETH_ADDRESS = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;\n\n address public constant BASIC_PROXY = 0x9D266997bc73B27d4302E711b55FD78B5278e1De;\n\n address public constant AETH_ADDRESS = 0x3a3A65aAb0dd2A17E3F1947bA16138cd37d08c04;\n\n\n\n function callFunction(\n\n address sender,\n\n Account.Info memory account,\n\n bytes memory data\n\n ) public {\n\n\n\n (\n\n address collateralToken,\n\n address borrowToken,\n\n uint256 ethAmount,\n\n address user,\n\n address proxy\n\n )\n\n = abi.decode(data, (address,address,uint256,address,address));\n\n\n\n // withdraw eth\n\n TokenInterface(WETH_ADDRESS).withdraw(ethAmount);\n\n\n\n address lendingPoolCoreAddress = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPoolCore();\n\n address lendingPool = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n address aCollateralToken = ILendingPool(lendingPoolCoreAddress).getReserveATokenAddress(collateralToken);\n\n address aBorrowToken = ILendingPool(lendingPoolCoreAddress).getReserveATokenAddress(borrowToken);\n\n\n\n // deposit eth on behalf of proxy\n\n DSProxy(payable(proxy)).execute{value: ethAmount}(BASIC_PROXY, abi.encodeWithSignature(\"deposit(address,uint256)\", ETH_ADDR, ethAmount));\n\n // borrow needed amount to repay users borrow\n\n (,uint256 borrowAmount,,uint256 borrowRateMode,,,uint256 originationFee,,,) = ILendingPool(lendingPool).getUserReserveData(borrowToken, user);\n\n borrowAmount += originationFee;\n\n DSProxy(payable(proxy)).execute(BASIC_PROXY, abi.encodeWithSignature(\"borrow(address,uint256,uint256)\", borrowToken, borrowAmount, borrowRateMode));\n\n // payback on behalf of user\n\n ERC20(borrowToken).safeApprove(proxy, borrowAmount);\n\n DSProxy(payable(proxy)).execute(BASIC_PROXY, abi.encodeWithSignature(\"paybackOnBehalf(address,address,uint256,bool,address)\", borrowToken, aBorrowToken, 0, true, user));\n\n // pull tokens from user to proxy\n\n ERC20(aCollateralToken).safeTransferFrom(user, proxy, ERC20(aCollateralToken).balanceOf(user));\n\n\n\n // enable as collateral\n\n DSProxy(payable(proxy)).execute(BASIC_PROXY, abi.encodeWithSignature(\"setUserUseReserveAsCollateralIfNeeded(address)\", collateralToken));\n\n\n\n // withdraw deposited eth\n\n DSProxy(payable(proxy)).execute(BASIC_PROXY, abi.encodeWithSignature(\"withdraw(address,address,uint256,bool)\", ETH_ADDR, AETH_ADDRESS, ethAmount, false));\n\n\n\n // deposit eth, get weth and return to sender\n\n TokenInterface(WETH_ADDRESS).deposit.value(address(this).balance)();\n\n ERC20(WETH_ADDRESS).safeTransfer(proxy, ethAmount+2);\n\n }\n\n\n\n /// @dev if contract receive eth, convert it to WETH\n\n receive() external payable {\n\n // deposit eth and get weth \n\n if (msg.sender == owner) {\n\n TokenInterface(WETH_ADDRESS).deposit.value(address(this).balance)();\n\n }\n\n }\n\n}\n\ncontract AaveImportTaker is DydxFlashLoanBase, ProxyPermission {\n\n\n\n address public constant WETH_ADDR = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;\n\n address payable public constant AAVE_IMPORT = 0x44e4EF23b4794699D0625657cADcB96e07820fFe;\n\n address public constant DEFISAVER_LOGGER = 0x5c55B921f590a89C1Ebe84dF170E655a82b62126;\n\n address public constant PROXY_REGISTRY_ADDRESS = 0x4678f0a6958e4D2Bc4F1BAF7Bc52E8F3564f3fE4;\n\n\n\n /// @notice Starts the process to move users position 1 collateral and 1 borrow\n\n /// @dev User must send 2 wei with this transaction\n\n /// @dev User must approve AaveImport to pull _aCollateralToken\n\n /// @param _collateralToken Collateral token we are moving to DSProxy\n\n /// @param _borrowToken Borrow token we are moving to DSProxy\n\n /// @param _ethAmount ETH amount that needs to be pulled from dydx\n\n function importLoan(address _collateralToken, address _borrowToken, uint _ethAmount) public {\n\n ISoloMargin solo = ISoloMargin(SOLO_MARGIN_ADDRESS);\n\n\n\n // Get marketId from token address\n\n uint256 marketId = _getMarketIdFromTokenAddress(WETH_ADDR);\n\n\n\n // Calculate repay amount (_amount + (2 wei))\n\n // Approve transfer from\n\n uint256 repayAmount = _getRepaymentAmountInternal(_ethAmount);\n\n ERC20(WETH_ADDR).approve(SOLO_MARGIN_ADDRESS, repayAmount);\n\n\n\n Actions.ActionArgs[] memory operations = new Actions.ActionArgs[](3);\n\n\n\n operations[0] = _getWithdrawAction(marketId, _ethAmount, AAVE_IMPORT);\n\n operations[1] = _getCallAction(\n\n abi.encode(_collateralToken, _borrowToken, _ethAmount, msg.sender, address(this)),\n\n AAVE_IMPORT\n\n );\n\n operations[2] = _getDepositAction(marketId, repayAmount, address(this));\n\n\n\n Account.Info[] memory accountInfos = new Account.Info[](1);\n\n accountInfos[0] = _getAccountInfo();\n\n\n\n givePermission(AAVE_IMPORT);\n\n solo.operate(accountInfos, operations);\n\n removePermission(AAVE_IMPORT);\n\n\n\n DefisaverLogger(DEFISAVER_LOGGER).Log(address(this), msg.sender, \"AaveImport\", abi.encode(_collateralToken, _borrowToken));\n\n }\n\n}\n\ncontract CompoundBasicProxy is GasBurner {\n\n\n\n address public constant ETH_ADDR = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n address public constant COMPTROLLER_ADDR = 0x3d9819210A31b4961b30EF54bE2aeD79B9c9Cd3B;\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n /// @notice User deposits tokens to the Compound protocol\n\n /// @dev User needs to approve the DSProxy to pull the _tokenAddr tokens\n\n /// @param _tokenAddr The address of the token to be deposited\n\n /// @param _cTokenAddr CTokens to be deposited\n\n /// @param _amount Amount of tokens to be deposited\n\n /// @param _inMarket True if the token is already in market for that address\n\n function deposit(address _tokenAddr, address _cTokenAddr, uint _amount, bool _inMarket) public burnGas(5) payable {\n\n if (_tokenAddr != ETH_ADDR) {\n\n ERC20(_tokenAddr).safeTransferFrom(msg.sender, address(this), _amount);\n\n }\n\n\n\n approveToken(_tokenAddr, _cTokenAddr);\n\n\n\n if (!_inMarket) {\n\n enterMarket(_cTokenAddr);\n\n }\n\n\n\n if (_tokenAddr != ETH_ADDR) {\n\n require(CTokenInterface(_cTokenAddr).mint(_amount) == 0);\n\n } else {\n\n CEtherInterface(_cTokenAddr).mint{value: msg.value}(); // reverts on fail\n\n }\n\n }\n\n\n\n /// @notice User withdraws tokens to the Compound protocol\n\n /// @param _tokenAddr The address of the token to be withdrawn\n\n /// @param _cTokenAddr CTokens to be withdrawn\n\n /// @param _amount Amount of tokens to be withdrawn\n\n /// @param _isCAmount If true _amount is cTokens if falls _amount is underlying tokens\n\n function withdraw(address _tokenAddr, address _cTokenAddr, uint _amount, bool _isCAmount) public burnGas(5) {\n\n\n\n if (_isCAmount) {\n\n require(CTokenInterface(_cTokenAddr).redeem(_amount) == 0);\n\n } else {\n\n require(CTokenInterface(_cTokenAddr).redeemUnderlying(_amount) == 0);\n\n }\n\n\n\n // withdraw funds to msg.sender\n\n if (_tokenAddr != ETH_ADDR) {\n\n ERC20(_tokenAddr).safeTransfer(msg.sender, ERC20(_tokenAddr).balanceOf(address(this)));\n\n } else {\n\n msg.sender.transfer(address(this).balance);\n\n }\n\n\n\n }\n\n\n\n /// @notice User borrows tokens to the Compound protocol\n\n /// @param _tokenAddr The address of the token to be borrowed\n\n /// @param _cTokenAddr CTokens to be borrowed\n\n /// @param _amount Amount of tokens to be borrowed\n\n /// @param _inMarket True if the token is already in market for that address\n\n function borrow(address _tokenAddr, address _cTokenAddr, uint _amount, bool _inMarket) public burnGas(8) {\n\n if (!_inMarket) {\n\n enterMarket(_cTokenAddr);\n\n }\n\n\n\n require(CTokenInterface(_cTokenAddr).borrow(_amount) == 0);\n\n\n\n // withdraw funds to msg.sender\n\n if (_tokenAddr != ETH_ADDR) {\n\n ERC20(_tokenAddr).safeTransfer(msg.sender, ERC20(_tokenAddr).balanceOf(address(this)));\n\n } else {\n\n msg.sender.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n /// @dev User needs to approve the DSProxy to pull the _tokenAddr tokens\n\n /// @notice User paybacks tokens to the Compound protocol\n\n /// @param _tokenAddr The address of the token to be paybacked\n\n /// @param _cTokenAddr CTokens to be paybacked\n\n /// @param _amount Amount of tokens to be payedback\n\n /// @param _wholeDebt If true the _amount will be set to the whole amount of the debt\n\n function payback(address _tokenAddr, address _cTokenAddr, uint _amount, bool _wholeDebt) public burnGas(5) payable {\n\n approveToken(_tokenAddr, _cTokenAddr);\n\n\n\n if (_wholeDebt) {\n\n _amount = CTokenInterface(_cTokenAddr).borrowBalanceCurrent(address(this));\n\n }\n\n\n\n if (_tokenAddr != ETH_ADDR) {\n\n ERC20(_tokenAddr).safeTransferFrom(msg.sender, address(this), _amount);\n\n\n\n require(CTokenInterface(_cTokenAddr).repayBorrow(_amount) == 0);\n\n } else {\n\n CEtherInterface(_cTokenAddr).repayBorrow{value: msg.value}();\n\n msg.sender.transfer(address(this).balance); // send back the extra eth\n\n }\n\n }\n\n\n\n /// @notice Helper method to withdraw tokens from the DSProxy\n\n /// @param _tokenAddr Address of the token to be withdrawn\n\n function withdrawTokens(address _tokenAddr) public {\n\n if (_tokenAddr != ETH_ADDR) {\n\n ERC20(_tokenAddr).safeTransfer(msg.sender, ERC20(_tokenAddr).balanceOf(address(this)));\n\n } else {\n\n msg.sender.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n /// @notice Enters the Compound market so it can be deposited/borrowed\n\n /// @param _cTokenAddr CToken address of the token\n\n function enterMarket(address _cTokenAddr) public {\n\n address[] memory markets = new address[](1);\n\n markets[0] = _cTokenAddr;\n\n\n\n ComptrollerInterface(COMPTROLLER_ADDR).enterMarkets(markets);\n\n }\n\n\n\n /// @notice Exits the Compound market so it can't be deposited/borrowed\n\n /// @param _cTokenAddr CToken address of the token\n\n function exitMarket(address _cTokenAddr) public {\n\n ComptrollerInterface(COMPTROLLER_ADDR).exitMarket(_cTokenAddr);\n\n }\n\n\n\n /// @notice Approves CToken contract to pull underlying tokens from the DSProxy\n\n /// @param _tokenAddr Token we are trying to approve\n\n /// @param _cTokenAddr Address which will gain the approval\n\n function approveToken(address _tokenAddr, address _cTokenAddr) internal {\n\n if (_tokenAddr != ETH_ADDR) {\n\n ERC20(_tokenAddr).safeApprove(_cTokenAddr, 0);\n\n ERC20(_tokenAddr).safeApprove(_cTokenAddr, uint(-1));\n\n }\n\n }\n\n}\n\ncontract CompoundSafetyRatio is Exponential, DSMath {\n\n // solhint-disable-next-line const-name-snakecase\n\n ComptrollerInterface public constant comp = ComptrollerInterface(0x3d9819210A31b4961b30EF54bE2aeD79B9c9Cd3B);\n\n\n\n /// @notice Calcualted the ratio of debt / adjusted collateral\n\n /// @param _user Address of the user\n\n function getSafetyRatio(address _user) public view returns (uint) {\n\n // For each asset the account is in\n\n address[] memory assets = comp.getAssetsIn(_user);\n\n address oracleAddr = comp.oracle();\n\n\n\n\n\n uint sumCollateral = 0;\n\n uint sumBorrow = 0;\n\n\n\n for (uint i = 0; i < assets.length; i++) {\n\n address asset = assets[i];\n\n\n\n (, uint cTokenBalance, uint borrowBalance, uint exchangeRateMantissa)\n\n = CTokenInterface(asset).getAccountSnapshot(_user);\n\n\n\n Exp memory oraclePrice;\n\n\n\n if (cTokenBalance != 0 || borrowBalance != 0) {\n\n oraclePrice = Exp({mantissa: CompoundOracleInterface(oracleAddr).getUnderlyingPrice(asset)});\n\n }\n\n\n\n // Sum up collateral in Usd\n\n if (cTokenBalance != 0) {\n\n\n\n (, uint collFactorMantissa) = comp.markets(address(asset));\n\n\n\n Exp memory collateralFactor = Exp({mantissa: collFactorMantissa});\n\n Exp memory exchangeRate = Exp({mantissa: exchangeRateMantissa});\n\n\n\n (, Exp memory tokensToUsd) = mulExp3(collateralFactor, exchangeRate, oraclePrice);\n\n\n\n (, sumCollateral) = mulScalarTruncateAddUInt(tokensToUsd, cTokenBalance, sumCollateral);\n\n }\n\n\n\n // Sum up debt in Usd\n\n if (borrowBalance != 0) {\n\n (, sumBorrow) = mulScalarTruncateAddUInt(oraclePrice, borrowBalance, sumBorrow);\n\n }\n\n }\n\n\n\n if (sumBorrow == 0) return uint(-1);\n\n\n\n uint borrowPowerUsed = (sumBorrow * 10**18) / sumCollateral;\n\n return wdiv(1e18, borrowPowerUsed);\n\n }\n\n}\n\ncontract CompoundMonitor is AdminAuth, DSMath, CompoundSafetyRatio, GasBurner {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n enum Method { Boost, Repay }\n\n\n\n uint public REPAY_GAS_TOKEN = 25;\n\n uint public BOOST_GAS_TOKEN = 20;\n\n\n\n uint constant public MAX_GAS_PRICE = 80000000000; // 80 gwei\n\n\n\n uint public REPAY_GAS_COST = 2200000;\n\n uint public BOOST_GAS_COST = 1700000;\n\n\n\n address public constant GAS_TOKEN_INTERFACE_ADDRESS = 0x0000000000b3F879cb30FE243b4Dfee438691c04;\n\n address public constant DEFISAVER_LOGGER = 0x5c55B921f590a89C1Ebe84dF170E655a82b62126;\n\n address public constant BOT_REGISTRY_ADDRESS = 0x637726f8b08a7ABE3aE3aCaB01A80E2d8ddeF77B;\n\n\n\n CompoundMonitorProxy public compoundMonitorProxy;\n\n CompoundSubscriptions public subscriptionsContract;\n\n address public compoundFlashLoanTakerAddress;\n\n\n\n DefisaverLogger public logger = DefisaverLogger(DEFISAVER_LOGGER);\n\n\n\n modifier onlyApproved() {\n\n require(BotRegistry(BOT_REGISTRY_ADDRESS).botList(msg.sender), \"Not auth bot\");\n\n _;\n\n }\n\n\n\n /// @param _compoundMonitorProxy Proxy contracts that actually is authorized to call DSProxy\n\n /// @param _subscriptions Subscriptions contract for Compound positions\n\n /// @param _compoundFlashLoanTaker Contract that actually performs Repay/Boost\n\n constructor(address _compoundMonitorProxy, address _subscriptions, address _compoundFlashLoanTaker) public {\n\n compoundMonitorProxy = CompoundMonitorProxy(_compoundMonitorProxy);\n\n subscriptionsContract = CompoundSubscriptions(_subscriptions);\n\n compoundFlashLoanTakerAddress = _compoundFlashLoanTaker;\n\n }\n\n\n\n /// @notice Bots call this method to repay for user when conditions are met\n\n /// @dev If the contract ownes gas token it will try and use it for gas price reduction\n\n /// @param _exData Exchange data\n\n /// @param _cAddresses cTokens addreses and exchange [cCollAddress, cBorrowAddress, exchangeAddress]\n\n /// @param _user The actual address that owns the Compound position\n\n function repayFor(\n\n SaverExchangeCore.ExchangeData memory _exData,\n\n address[2] memory _cAddresses, // cCollAddress, cBorrowAddress\n\n address _user\n\n ) public payable onlyApproved burnGas(REPAY_GAS_TOKEN) {\n\n\n\n (bool isAllowed, uint ratioBefore) = canCall(Method.Repay, _user);\n\n require(isAllowed); // check if conditions are met\n\n\n\n uint256 gasCost = calcGasCost(REPAY_GAS_COST);\n\n\n\n compoundMonitorProxy.callExecute{value: msg.value}(\n\n _user,\n\n compoundFlashLoanTakerAddress,\n\n abi.encodeWithSignature(\n\n \"repayWithLoan((address,address,uint256,uint256,uint256,address,address,bytes,uint256),address[2],uint256)\",\n\n _exData,\n\n _cAddresses,\n\n gasCost\n\n )\n\n );\n\n\n\n (bool isGoodRatio, uint ratioAfter) = ratioGoodAfter(Method.Repay, _user);\n\n require(isGoodRatio); // check if the after result of the actions is good\n\n\n\n returnEth();\n\n\n\n logger.Log(address(this), _user, \"AutomaticCompoundRepay\", abi.encode(ratioBefore, ratioAfter));\n\n }\n\n\n\n /// @notice Bots call this method to boost for user when conditions are met\n\n /// @dev If the contract ownes gas token it will try and use it for gas price reduction\n\n /// @param _exData Exchange data\n\n /// @param _cAddresses cTokens addreses and exchange [cCollAddress, cBorrowAddress, exchangeAddress]\n\n /// @param _user The actual address that owns the Compound position\n\n function boostFor(\n\n SaverExchangeCore.ExchangeData memory _exData,\n\n address[2] memory _cAddresses, // cCollAddress, cBorrowAddress\n\n address _user\n\n ) public payable onlyApproved burnGas(BOOST_GAS_TOKEN) {\n\n\n\n (bool isAllowed, uint ratioBefore) = canCall(Method.Boost, _user);\n\n require(isAllowed); // check if conditions are met\n\n\n\n uint256 gasCost = calcGasCost(BOOST_GAS_COST);\n\n\n\n compoundMonitorProxy.callExecute{value: msg.value}(\n\n _user,\n\n compoundFlashLoanTakerAddress,\n\n abi.encodeWithSignature(\n\n \"boostWithLoan((address,address,uint256,uint256,uint256,address,address,bytes,uint256),address[2],uint256)\",\n\n _exData,\n\n _cAddresses,\n\n gasCost\n\n )\n\n );\n\n\n\n\n\n (bool isGoodRatio, uint ratioAfter) = ratioGoodAfter(Method.Boost, _user);\n\n require(isGoodRatio); // check if the after result of the actions is good\n\n\n\n returnEth();\n\n\n\n logger.Log(address(this), _user, \"AutomaticCompoundBoost\", abi.encode(ratioBefore, ratioAfter));\n\n }\n\n\n\n/******************* INTERNAL METHODS ********************************/\n\n function returnEth() internal {\n\n // return if some eth left\n\n if (address(this).balance > 0) {\n\n msg.sender.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n/******************* STATIC METHODS ********************************/\n\n\n\n /// @notice Checks if Boost/Repay could be triggered for the CDP\n\n /// @dev Called by MCDMonitor to enforce the min/max check\n\n /// @param _method Type of action to be called\n\n /// @param _user The actual address that owns the Compound position\n\n /// @return Boolean if it can be called and the ratio\n\n function canCall(Method _method, address _user) public view returns(bool, uint) {\n\n bool subscribed = subscriptionsContract.isSubscribed(_user);\n\n CompoundSubscriptions.CompoundHolder memory holder = subscriptionsContract.getHolder(_user);\n\n\n\n // check if cdp is subscribed\n\n if (!subscribed) return (false, 0);\n\n\n\n // check if boost and boost allowed\n\n if (_method == Method.Boost && !holder.boostEnabled) return (false, 0);\n\n\n\n uint currRatio = getSafetyRatio(_user);\n\n\n\n if (_method == Method.Repay) {\n\n return (currRatio < holder.minRatio, currRatio);\n\n } else if (_method == Method.Boost) {\n\n return (currRatio > holder.maxRatio, currRatio);\n\n }\n\n }\n\n\n\n /// @dev After the Boost/Repay check if the ratio doesn't trigger another call\n\n /// @param _method Type of action to be called\n\n /// @param _user The actual address that owns the Compound position\n\n /// @return Boolean if the recent action preformed correctly and the ratio\n\n function ratioGoodAfter(Method _method, address _user) public view returns(bool, uint) {\n\n CompoundSubscriptions.CompoundHolder memory holder;\n\n\n\n holder= subscriptionsContract.getHolder(_user);\n\n\n\n uint currRatio = getSafetyRatio(_user);\n\n\n\n if (_method == Method.Repay) {\n\n return (currRatio < holder.maxRatio, currRatio);\n\n } else if (_method == Method.Boost) {\n\n return (currRatio > holder.minRatio, currRatio);\n\n }\n\n }\n\n\n\n /// @notice Calculates gas cost (in Eth) of tx\n\n /// @dev Gas price is limited to MAX_GAS_PRICE to prevent attack of draining user CDP\n\n /// @param _gasAmount Amount of gas used for the tx\n\n function calcGasCost(uint _gasAmount) public view returns (uint) {\n\n uint gasPrice = tx.gasprice <= MAX_GAS_PRICE ? tx.gasprice : MAX_GAS_PRICE;\n\n\n\n return mul(gasPrice, _gasAmount);\n\n }\n\n\n\n/******************* OWNER ONLY OPERATIONS ********************************/\n\n\n\n /// @notice Allows owner to change gas cost for boost operation, but only up to 3 millions\n\n /// @param _gasCost New gas cost for boost method\n\n function changeBoostGasCost(uint _gasCost) public onlyOwner {\n\n require(_gasCost < 3000000);\n\n\n\n BOOST_GAS_COST = _gasCost;\n\n }\n\n\n\n /// @notice Allows owner to change gas cost for repay operation, but only up to 3 millions\n\n /// @param _gasCost New gas cost for repay method\n\n function changeRepayGasCost(uint _gasCost) public onlyOwner {\n\n require(_gasCost < 3000000);\n\n\n\n REPAY_GAS_COST = _gasCost;\n\n }\n\n\n\n /// @notice If any tokens gets stuck in the contract owner can withdraw it\n\n /// @param _tokenAddress Address of the ERC20 token\n\n /// @param _to Address of the receiver\n\n /// @param _amount The amount to be sent\n\n function transferERC20(address _tokenAddress, address _to, uint _amount) public onlyOwner {\n\n ERC20(_tokenAddress).safeTransfer(_to, _amount);\n\n }\n\n\n\n /// @notice If any Eth gets stuck in the contract owner can withdraw it\n\n /// @param _to Address of the receiver\n\n /// @param _amount The amount to be sent\n\n function transferEth(address payable _to, uint _amount) public onlyOwner {\n\n _to.transfer(_amount);\n\n }\n\n}\n\ncontract CompoundSaverHelper is DSMath, Exponential {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n address payable public constant WALLET_ADDR = 0x322d58b9E75a6918f7e7849AEe0fF09369977e08;\n\n address public constant DISCOUNT_ADDR = 0x1b14E8D511c9A4395425314f849bD737BAF8208F;\n\n\n\n uint public constant MANUAL_SERVICE_FEE = 400; // 0.25% Fee\n\n uint public constant AUTOMATIC_SERVICE_FEE = 333; // 0.3% Fee\n\n\n\n address public constant ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n address public constant CETH_ADDRESS = 0x4Ddc2D193948926D02f9B1fE9e1daa0718270ED5;\n\n address public constant COMPTROLLER = 0x3d9819210A31b4961b30EF54bE2aeD79B9c9Cd3B;\n\n\n\n address public constant COMPOUND_LOGGER = 0x3DD0CDf5fFA28C6847B4B276e2fD256046a44bb7;\n\n\n\n address public constant BOT_REGISTRY_ADDRESS = 0x637726f8b08a7ABE3aE3aCaB01A80E2d8ddeF77B;\n\n\n\n /// @notice Helper method to payback the Compound debt\n\n /// @dev If amount is bigger it will repay the whole debt and send the extra to the _user\n\n /// @param _amount Amount of tokens we want to repay\n\n /// @param _cBorrowToken Ctoken address we are repaying\n\n /// @param _borrowToken Token address we are repaying\n\n /// @param _user Owner of the compound position we are paying back\n\n function paybackDebt(uint _amount, address _cBorrowToken, address _borrowToken, address payable _user) internal {\n\n uint wholeDebt = CTokenInterface(_cBorrowToken).borrowBalanceCurrent(address(this));\n\n\n\n if (_amount > wholeDebt) {\n\n if (_borrowToken == ETH_ADDRESS) {\n\n _user.transfer((_amount - wholeDebt));\n\n } else {\n\n ERC20(_borrowToken).safeTransfer(_user, (_amount - wholeDebt));\n\n }\n\n\n\n _amount = wholeDebt;\n\n }\n\n\n\n approveCToken(_borrowToken, _cBorrowToken);\n\n\n\n if (_borrowToken == ETH_ADDRESS) {\n\n CEtherInterface(_cBorrowToken).repayBorrow{value: _amount}();\n\n } else {\n\n require(CTokenInterface(_cBorrowToken).repayBorrow(_amount) == 0);\n\n }\n\n }\n\n\n\n /// @notice Calculates the fee amount\n\n /// @param _amount Amount that is converted\n\n /// @param _user Actuall user addr not DSProxy\n\n /// @param _gasCost Ether amount of gas we are spending for tx\n\n /// @param _cTokenAddr CToken addr. of token we are getting for the fee\n\n /// @return feeAmount The amount we took for the fee\n\n function getFee(uint _amount, address _user, uint _gasCost, address _cTokenAddr) internal returns (uint feeAmount) {\n\n uint fee = MANUAL_SERVICE_FEE;\n\n\n\n if (BotRegistry(BOT_REGISTRY_ADDRESS).botList(tx.origin)) {\n\n fee = AUTOMATIC_SERVICE_FEE;\n\n }\n\n\n\n address tokenAddr = getUnderlyingAddr(_cTokenAddr);\n\n\n\n if (Discount(DISCOUNT_ADDR).isCustomFeeSet(_user)) {\n\n fee = Discount(DISCOUNT_ADDR).getCustomServiceFee(_user);\n\n }\n\n\n\n feeAmount = (fee == 0) ? 0 : (_amount / fee);\n\n\n\n if (_gasCost != 0) {\n\n address oracle = ComptrollerInterface(COMPTROLLER).oracle();\n\n\n\n uint usdTokenPrice = CompoundOracleInterface(oracle).getUnderlyingPrice(_cTokenAddr);\n\n uint ethPrice = CompoundOracleInterface(oracle).getUnderlyingPrice(CETH_ADDRESS);\n\n\n\n uint tokenPriceInEth = wdiv(usdTokenPrice, ethPrice);\n\n\n\n _gasCost = wdiv(_gasCost, tokenPriceInEth);\n\n\n\n feeAmount = add(feeAmount, _gasCost);\n\n }\n\n\n\n // fee can't go over 20% of the whole amount\n\n if (feeAmount > (_amount / 5)) {\n\n feeAmount = _amount / 5;\n\n }\n\n\n\n if (tokenAddr == ETH_ADDRESS) {\n\n WALLET_ADDR.transfer(feeAmount);\n\n } else {\n\n ERC20(tokenAddr).safeTransfer(WALLET_ADDR, feeAmount);\n\n }\n\n }\n\n\n\n /// @notice Calculates the gas cost of transaction and send it to wallet\n\n /// @param _amount Amount that is converted\n\n /// @param _gasCost Ether amount of gas we are spending for tx\n\n /// @param _cTokenAddr CToken addr. of token we are getting for the fee\n\n /// @return feeAmount The amount we took for the fee\n\n function getGasCost(uint _amount, uint _gasCost, address _cTokenAddr) internal returns (uint feeAmount) {\n\n address tokenAddr = getUnderlyingAddr(_cTokenAddr);\n\n\n\n if (_gasCost != 0) {\n\n address oracle = ComptrollerInterface(COMPTROLLER).oracle();\n\n\n\n uint usdTokenPrice = CompoundOracleInterface(oracle).getUnderlyingPrice(_cTokenAddr);\n\n uint ethPrice = CompoundOracleInterface(oracle).getUnderlyingPrice(CETH_ADDRESS);\n\n\n\n uint tokenPriceInEth = wdiv(usdTokenPrice, ethPrice);\n\n\n\n feeAmount = wdiv(_gasCost, tokenPriceInEth);\n\n }\n\n\n\n // fee can't go over 20% of the whole amount\n\n if (feeAmount > (_amount / 5)) {\n\n feeAmount = _amount / 5;\n\n }\n\n\n\n if (tokenAddr == ETH_ADDRESS) {\n\n WALLET_ADDR.transfer(feeAmount);\n\n } else {\n\n ERC20(tokenAddr).safeTransfer(WALLET_ADDR, feeAmount);\n\n }\n\n }\n\n\n\n /// @notice Enters the market for the collatera and borrow tokens\n\n /// @param _cTokenAddrColl Collateral address we are entering the market in\n\n /// @param _cTokenAddrBorrow Borrow address we are entering the market in\n\n function enterMarket(address _cTokenAddrColl, address _cTokenAddrBorrow) internal {\n\n address[] memory markets = new address[](2);\n\n markets[0] = _cTokenAddrColl;\n\n markets[1] = _cTokenAddrBorrow;\n\n\n\n ComptrollerInterface(COMPTROLLER).enterMarkets(markets);\n\n }\n\n\n\n /// @notice Approves CToken contract to pull underlying tokens from the DSProxy\n\n /// @param _tokenAddr Token we are trying to approve\n\n /// @param _cTokenAddr Address which will gain the approval\n\n function approveCToken(address _tokenAddr, address _cTokenAddr) internal {\n\n if (_tokenAddr != ETH_ADDRESS) {\n\n ERC20(_tokenAddr).safeApprove(_cTokenAddr, uint(-1));\n\n }\n\n }\n\n\n\n /// @notice Returns the underlying address of the cToken asset\n\n /// @param _cTokenAddress cToken address\n\n /// @return Token address of the cToken specified\n\n function getUnderlyingAddr(address _cTokenAddress) internal returns (address) {\n\n if (_cTokenAddress == CETH_ADDRESS) {\n\n return ETH_ADDRESS;\n\n } else {\n\n return CTokenInterface(_cTokenAddress).underlying();\n\n }\n\n }\n\n\n\n /// @notice Returns the owner of the DSProxy that called the contract\n\n function getUserAddress() internal view returns (address) {\n\n DSProxy proxy = DSProxy(uint160(address(this)));\n\n\n\n return proxy.owner();\n\n }\n\n\n\n /// @notice Returns the maximum amount of collateral available to withdraw\n\n /// @dev Due to rounding errors the result is - 1% wei from the exact amount\n\n /// @param _cCollAddress Collateral we are getting the max value of\n\n /// @param _account Users account\n\n /// @return Returns the max. collateral amount in that token\n\n function getMaxCollateral(address _cCollAddress, address _account) public returns (uint) {\n\n (, uint liquidityInUsd, ) = ComptrollerInterface(COMPTROLLER).getAccountLiquidity(_account);\n\n uint usersBalance = CTokenInterface(_cCollAddress).balanceOfUnderlying(_account);\n\n address oracle = ComptrollerInterface(COMPTROLLER).oracle();\n\n\n\n if (liquidityInUsd == 0) return usersBalance;\n\n\n\n CTokenInterface(_cCollAddress).accrueInterest();\n\n\n\n (, uint collFactorMantissa) = ComptrollerInterface(COMPTROLLER).markets(_cCollAddress);\n\n Exp memory collateralFactor = Exp({mantissa: collFactorMantissa});\n\n\n\n (, uint tokensToUsd) = divScalarByExpTruncate(liquidityInUsd, collateralFactor);\n\n\n\n uint usdPrice = CompoundOracleInterface(oracle).getUnderlyingPrice(_cCollAddress);\n\n uint liqInToken = wdiv(tokensToUsd, usdPrice);\n\n\n\n if (liqInToken > usersBalance) return usersBalance;\n\n\n\n return sub(liqInToken, (liqInToken / 100)); // cut off 1% due to rounding issues\n\n }\n\n\n\n /// @notice Returns the maximum amount of borrow amount available\n\n /// @dev Due to rounding errors the result is - 1% wei from the exact amount\n\n /// @param _cBorrowAddress Borrow token we are getting the max value of\n\n /// @param _account Users account\n\n /// @return Returns the max. borrow amount in that token\n\n function getMaxBorrow(address _cBorrowAddress, address _account) public returns (uint) {\n\n (, uint liquidityInUsd, ) = ComptrollerInterface(COMPTROLLER).getAccountLiquidity(_account);\n\n address oracle = ComptrollerInterface(COMPTROLLER).oracle();\n\n\n\n CTokenInterface(_cBorrowAddress).accrueInterest();\n\n\n\n uint usdPrice = CompoundOracleInterface(oracle).getUnderlyingPrice(_cBorrowAddress);\n\n uint liquidityInToken = wdiv(liquidityInUsd, usdPrice);\n\n\n\n return sub(liquidityInToken, (liquidityInToken / 100)); // cut off 1% due to rounding issues\n\n }\n\n}\n\ncontract CompoundImportFlashLoan is FlashLoanReceiverBase {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n ILendingPoolAddressesProvider public LENDING_POOL_ADDRESS_PROVIDER = ILendingPoolAddressesProvider(0x24a42fD28C976A61Df5D00D0599C34c4f90748c8);\n\n\n\n address public constant COMPOUND_BORROW_PROXY = 0xb7EDC39bE76107e2Cc645f0f6a3D164f5e173Ee2;\n\n\n\n address public owner;\n\n\n\n constructor()\n\n FlashLoanReceiverBase(LENDING_POOL_ADDRESS_PROVIDER)\n\n public {\n\n owner = msg.sender;\n\n }\n\n\n\n /// @notice Called by Aave when sending back the FL amount\n\n /// @param _reserve The address of the borrowed token\n\n /// @param _amount Amount of FL tokens received\n\n /// @param _fee FL Aave fee\n\n /// @param _params The params that are sent from the original FL caller contract\n\n function executeOperation(\n\n address _reserve,\n\n uint256 _amount,\n\n uint256 _fee,\n\n bytes calldata _params)\n\n external override {\n\n\n\n (\n\n address cCollateralToken,\n\n address cBorrowToken,\n\n address user,\n\n address proxy\n\n )\n\n = abi.decode(_params, (address,address,address,address));\n\n\n\n // approve FL tokens so we can repay them\n\n ERC20(_reserve).safeApprove(cBorrowToken, uint(-1));\n\n\n\n // repay compound debt\n\n require(CTokenInterface(cBorrowToken).repayBorrowBehalf(user, uint(-1)) == 0, \"Repay borrow behalf fail\");\n\n\n\n // transfer cTokens to proxy\n\n uint cTokenBalance = CTokenInterface(cCollateralToken).balanceOf(user);\n\n require(CTokenInterface(cCollateralToken).transferFrom(user, proxy, cTokenBalance));\n\n\n\n // borrow\n\n bytes memory proxyData = getProxyData(cCollateralToken, cBorrowToken, _reserve, (_amount + _fee));\n\n DSProxyInterface(proxy).execute(COMPOUND_BORROW_PROXY, proxyData);\n\n\n\n // Repay the loan with the money DSProxy sent back\n\n transferFundsBackToPoolInternal(_reserve, _amount.add(_fee));\n\n }\n\n\n\n /// @notice Formats function data call so we can call it through DSProxy\n\n /// @param _cCollToken CToken address of collateral\n\n /// @param _cBorrowToken CToken address we will borrow\n\n /// @param _borrowToken Token address we will borrow\n\n /// @param _amount Amount that will be borrowed\n\n /// @return proxyData Formated function call data\n\n function getProxyData(address _cCollToken, address _cBorrowToken, address _borrowToken, uint _amount) internal pure returns (bytes memory proxyData) {\n\n proxyData = abi.encodeWithSignature(\n\n \"borrow(address,address,address,uint256)\",\n\n _cCollToken, _cBorrowToken, _borrowToken, _amount);\n\n }\n\n\n\n function withdrawStuckFunds(address _tokenAddr, uint _amount) public {\n\n require(owner == msg.sender, \"Must be owner\");\n\n\n\n if (_tokenAddr == 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE) {\n\n msg.sender.transfer(_amount);\n\n } else {\n\n ERC20(_tokenAddr).safeTransfer(owner, _amount);\n\n }\n\n }\n\n}\n\ncontract CompoundImportTaker is CompoundSaverHelper, ProxyPermission, GasBurner {\n\n\n\n ILendingPool public constant lendingPool = ILendingPool(0x398eC7346DcD622eDc5ae82352F02bE94C62d119);\n\n\n\n address payable public constant COMPOUND_IMPORT_FLASH_LOAN = 0x0a9238e14d5A20CDb03811B12D1984587C3CE9a0;\n\n address public constant PROXY_REGISTRY_ADDRESS = 0x4678f0a6958e4D2Bc4F1BAF7Bc52E8F3564f3fE4;\n\n\n\n DefisaverLogger public constant logger = DefisaverLogger(0x5c55B921f590a89C1Ebe84dF170E655a82b62126);\n\n\n\n /// @notice Starts the process to move users position 1 collateral and 1 borrow\n\n /// @dev User must approve COMPOUND_IMPORT_FLASH_LOAN to pull _cCollateralToken\n\n /// @param _cCollateralToken Collateral we are moving to DSProxy\n\n /// @param _cBorrowToken Borrow token we are moving to DSProxy\n\n function importLoan(address _cCollateralToken, address _cBorrowToken) external burnGas(20) {\n\n address proxy = getProxy();\n\n\n\n uint loanAmount = CTokenInterface(_cBorrowToken).borrowBalanceCurrent(msg.sender);\n\n bytes memory paramsData = abi.encode(_cCollateralToken, _cBorrowToken, msg.sender, proxy);\n\n\n\n givePermission(COMPOUND_IMPORT_FLASH_LOAN);\n\n\n\n lendingPool.flashLoan(COMPOUND_IMPORT_FLASH_LOAN, getUnderlyingAddr(_cBorrowToken), loanAmount, paramsData);\n\n\n\n removePermission(COMPOUND_IMPORT_FLASH_LOAN);\n\n\n\n logger.Log(address(this), msg.sender, \"CompoundImport\", abi.encode(loanAmount, 0, _cCollateralToken));\n\n }\n\n\n\n /// @notice Gets proxy address, if user doesn't has DSProxy build it\n\n /// @return proxy DsProxy address\n\n function getProxy() internal returns (address proxy) {\n\n proxy = ProxyRegistryInterface(PROXY_REGISTRY_ADDRESS).proxies(msg.sender);\n\n\n\n if (proxy == address(0)) {\n\n proxy = ProxyRegistryInterface(PROXY_REGISTRY_ADDRESS).build(msg.sender);\n\n }\n\n\n\n }\n\n}\n\ncontract SaverExchangeCore is SaverExchangeHelper, DSMath {\n\n\n\n // first is empty to keep the legacy order in place\n\n enum ExchangeType { _, OASIS, KYBER, UNISWAP, ZEROX }\n\n\n\n enum ActionType { SELL, BUY }\n\n\n\n struct ExchangeData {\n\n address srcAddr;\n\n address destAddr;\n\n uint srcAmount;\n\n uint destAmount;\n\n uint minPrice;\n\n address wrapper;\n\n address exchangeAddr;\n\n bytes callData;\n\n uint256 price0x;\n\n }\n\n\n\n /// @notice Internal method that preforms a sell on 0x/on-chain\n\n /// @dev Usefull for other DFS contract to integrate for exchanging\n\n /// @param exData Exchange data struct\n\n /// @return (address, uint) Address of the wrapper used and destAmount\n\n function _sell(ExchangeData memory exData) internal returns (address, uint) {\n\n\n\n address wrapper;\n\n uint swapedTokens;\n\n bool success;\n\n uint tokensLeft = exData.srcAmount;\n\n\n\n // if selling eth, convert to weth\n\n if (exData.srcAddr == KYBER_ETH_ADDRESS) {\n\n exData.srcAddr = ethToWethAddr(exData.srcAddr);\n\n TokenInterface(WETH_ADDRESS).deposit.value(exData.srcAmount)();\n\n }\n\n\n\n // Try 0x first and then fallback on specific wrapper\n\n if (exData.price0x > 0) {\n\n approve0xProxy(exData.srcAddr, exData.srcAmount);\n\n\n\n uint ethAmount = exData.srcAddr == WETH_ADDRESS ? msg.value - exData.srcAmount : msg.value;\n\n (success, swapedTokens, tokensLeft) = takeOrder(exData, ethAmount, ActionType.SELL);\n\n\n\n if (success) {\n\n wrapper = exData.exchangeAddr;\n\n }\n\n }\n\n\n\n // fallback to desired wrapper if 0x failed\n\n if (!success) {\n\n swapedTokens = saverSwap(exData, ActionType.SELL);\n\n wrapper = exData.wrapper;\n\n }\n\n\n\n require(getBalance(exData.destAddr) >= wmul(exData.minPrice, exData.srcAmount), \"Final amount isn't correct\");\n\n\n\n // if anything is left in weth, pull it to user as eth\n\n if (getBalance(WETH_ADDRESS) > 0) {\n\n TokenInterface(WETH_ADDRESS).withdraw(\n\n TokenInterface(WETH_ADDRESS).balanceOf(address(this))\n\n );\n\n }\n\n\n\n return (wrapper, swapedTokens);\n\n }\n\n\n\n /// @notice Internal method that preforms a buy on 0x/on-chain\n\n /// @dev Usefull for other DFS contract to integrate for exchanging\n\n /// @param exData Exchange data struct\n\n /// @return (address, uint) Address of the wrapper used and srcAmount\n\n function _buy(ExchangeData memory exData) internal returns (address, uint) {\n\n\n\n address wrapper;\n\n uint swapedTokens;\n\n bool success;\n\n\n\n require(exData.destAmount != 0, \"Dest amount must be specified\");\n\n\n\n // if selling eth, convert to weth\n\n if (exData.srcAddr == KYBER_ETH_ADDRESS) {\n\n exData.srcAddr = ethToWethAddr(exData.srcAddr);\n\n TokenInterface(WETH_ADDRESS).deposit.value(exData.srcAmount)();\n\n }\n\n\n\n if (exData.price0x > 0) {\n\n approve0xProxy(exData.srcAddr, exData.srcAmount);\n\n\n\n uint ethAmount = exData.srcAddr == WETH_ADDRESS ? msg.value - exData.srcAmount : msg.value;\n\n (success, swapedTokens,) = takeOrder(exData, ethAmount, ActionType.BUY);\n\n\n\n if (success) {\n\n wrapper = exData.exchangeAddr;\n\n }\n\n }\n\n\n\n // fallback to desired wrapper if 0x failed\n\n if (!success) {\n\n swapedTokens = saverSwap(exData, ActionType.BUY);\n\n wrapper = exData.wrapper;\n\n }\n\n\n\n require(getBalance(exData.destAddr) >= exData.destAmount, \"Final amount isn't correct\");\n\n\n\n // if anything is left in weth, pull it to user as eth\n\n if (getBalance(WETH_ADDRESS) > 0) {\n\n TokenInterface(WETH_ADDRESS).withdraw(\n\n TokenInterface(WETH_ADDRESS).balanceOf(address(this))\n\n );\n\n }\n\n\n\n return (wrapper, getBalance(exData.destAddr));\n\n }\n\n\n\n /// @notice Takes order from 0x and returns bool indicating if it is successful\n\n /// @param _exData Exchange data\n\n /// @param _ethAmount Ether fee needed for 0x order\n\n function takeOrder(\n\n ExchangeData memory _exData,\n\n uint256 _ethAmount,\n\n ActionType _type\n\n ) private returns (bool success, uint256, uint256) {\n\n\n\n // write in the exact amount we are selling/buing in an order\n\n if (_type == ActionType.SELL) {\n\n writeUint256(_exData.callData, 36, _exData.srcAmount);\n\n } else {\n\n writeUint256(_exData.callData, 36, _exData.destAmount);\n\n }\n\n\n\n if (ZrxAllowlist(ZRX_ALLOWLIST_ADDR).isNonPayableAddr(_exData.exchangeAddr)) {\n\n _ethAmount = 0;\n\n }\n\n\n\n if (ZrxAllowlist(ZRX_ALLOWLIST_ADDR).isZrxAddr(_exData.exchangeAddr)) {\n\n (success, ) = _exData.exchangeAddr.call{value: _ethAmount}(_exData.callData);\n\n } else {\n\n success = false;\n\n }\n\n\n\n uint256 tokensSwaped = 0;\n\n uint256 tokensLeft = _exData.srcAmount;\n\n\n\n if (success) {\n\n // check to see if any _src tokens are left over after exchange\n\n tokensLeft = getBalance(_exData.srcAddr);\n\n\n\n // convert weth -> eth if needed\n\n if (_exData.destAddr == KYBER_ETH_ADDRESS) {\n\n TokenInterface(WETH_ADDRESS).withdraw(\n\n TokenInterface(WETH_ADDRESS).balanceOf(address(this))\n\n );\n\n }\n\n\n\n // get the current balance of the swaped tokens\n\n tokensSwaped = getBalance(_exData.destAddr);\n\n }\n\n\n\n return (success, tokensSwaped, tokensLeft);\n\n }\n\n\n\n /// @notice Calls wraper contract for exchage to preform an on-chain swap\n\n /// @param _exData Exchange data struct\n\n /// @param _type Type of action SELL|BUY\n\n /// @return swapedTokens For Sell that the destAmount, for Buy thats the srcAmount\n\n function saverSwap(ExchangeData memory _exData, ActionType _type) internal returns (uint swapedTokens) {\n\n require(SaverExchangeRegistry(SAVER_EXCHANGE_REGISTRY).isWrapper(_exData.wrapper), \"Wrapper is not valid\");\n\n\n\n uint ethValue = 0;\n\n\n\n ERC20(_exData.srcAddr).safeTransfer(_exData.wrapper, _exData.srcAmount);\n\n\n\n if (_type == ActionType.SELL) {\n\n swapedTokens = ExchangeInterfaceV2(_exData.wrapper).\n\n sell{value: ethValue}(_exData.srcAddr, _exData.destAddr, _exData.srcAmount);\n\n } else {\n\n swapedTokens = ExchangeInterfaceV2(_exData.wrapper).\n\n buy{value: ethValue}(_exData.srcAddr, _exData.destAddr, _exData.destAmount);\n\n }\n\n }\n\n\n\n function writeUint256(bytes memory _b, uint256 _index, uint _input) internal pure {\n\n if (_b.length < _index + 32) {\n\n revert(\"Incorrent lengt while writting bytes32\");\n\n }\n\n\n\n bytes32 input = bytes32(_input);\n\n\n\n _index += 32;\n\n\n\n // Read the bytes32 from array memory\n\n assembly {\n\n mstore(add(_b, _index), input)\n\n }\n\n }\n\n\n\n /// @notice Converts Kybers Eth address -> Weth\n\n /// @param _src Input address\n\n function ethToWethAddr(address _src) internal pure returns (address) {\n\n return _src == KYBER_ETH_ADDRESS ? WETH_ADDRESS : _src;\n\n }\n\n\n\n function packExchangeData(ExchangeData memory _exData) public pure returns(bytes memory) {\n\n // splitting in two different bytes and encoding all because of stack too deep in decoding part\n\n\n\n bytes memory part1 = abi.encode(\n\n _exData.srcAddr,\n\n _exData.destAddr,\n\n _exData.srcAmount,\n\n _exData.destAmount\n\n );\n\n\n\n bytes memory part2 = abi.encode(\n\n _exData.minPrice,\n\n _exData.wrapper,\n\n _exData.exchangeAddr,\n\n _exData.callData,\n\n _exData.price0x\n\n );\n\n\n\n\n\n return abi.encode(part1, part2);\n\n }\n\n\n\n function unpackExchangeData(bytes memory _data) public pure returns(ExchangeData memory _exData) {\n\n (\n\n bytes memory part1,\n\n bytes memory part2\n\n ) = abi.decode(_data, (bytes,bytes));\n\n\n\n (\n\n _exData.srcAddr,\n\n _exData.destAddr,\n\n _exData.srcAmount,\n\n _exData.destAmount\n\n ) = abi.decode(part1, (address,address,uint256,uint256));\n\n\n\n (\n\n _exData.minPrice,\n\n _exData.wrapper,\n\n _exData.exchangeAddr,\n\n _exData.callData,\n\n _exData.price0x\n\n )\n\n = abi.decode(part2, (uint256,address,address,bytes,uint256));\n\n }\n\n\n\n // solhint-disable-next-line no-empty-blocks\n\n receive() external virtual payable {}\n\n}\n\ncontract KyberWrapper is DSMath, ExchangeInterfaceV2, AdminAuth {\n\n\n\n address public constant KYBER_ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n address public constant KYBER_INTERFACE = 0x9AAb3f75489902f3a48495025729a0AF77d4b11e;\n\n address payable public constant WALLET_ID = 0x322d58b9E75a6918f7e7849AEe0fF09369977e08;\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n /// @notice Sells a _srcAmount of tokens at Kyber\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _srcAmount From amount\n\n /// @return uint Destination amount\n\n function sell(address _srcAddr, address _destAddr, uint _srcAmount) external override payable returns (uint) {\n\n ERC20 srcToken = ERC20(_srcAddr);\n\n ERC20 destToken = ERC20(_destAddr);\n\n\n\n KyberNetworkProxyInterface kyberNetworkProxy = KyberNetworkProxyInterface(KYBER_INTERFACE);\n\n\n\n if (_srcAddr != KYBER_ETH_ADDRESS) {\n\n srcToken.safeApprove(address(kyberNetworkProxy), _srcAmount);\n\n }\n\n\n\n uint destAmount = kyberNetworkProxy.trade{value: msg.value}(\n\n srcToken,\n\n _srcAmount,\n\n destToken,\n\n msg.sender,\n\n uint(-1),\n\n 0,\n\n WALLET_ID\n\n );\n\n\n\n return destAmount;\n\n }\n\n\n\n /// @notice Buys a _destAmount of tokens at Kyber\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _destAmount To amount\n\n /// @return uint srcAmount\n\n function buy(address _srcAddr, address _destAddr, uint _destAmount) external override payable returns(uint) {\n\n ERC20 srcToken = ERC20(_srcAddr);\n\n ERC20 destToken = ERC20(_destAddr);\n\n\n\n uint srcAmount = 0;\n\n if (_srcAddr != KYBER_ETH_ADDRESS) {\n\n srcAmount = srcToken.balanceOf(address(this));\n\n } else {\n\n srcAmount = msg.value;\n\n }\n\n\n\n KyberNetworkProxyInterface kyberNetworkProxy = KyberNetworkProxyInterface(KYBER_INTERFACE);\n\n\n\n if (_srcAddr != KYBER_ETH_ADDRESS) {\n\n srcToken.safeApprove(address(kyberNetworkProxy), srcAmount);\n\n }\n\n\n\n uint destAmount = kyberNetworkProxy.trade{value: msg.value}(\n\n srcToken,\n\n srcAmount,\n\n destToken,\n\n msg.sender,\n\n _destAmount,\n\n 0,\n\n WALLET_ID\n\n );\n\n\n\n require(destAmount == _destAmount, \"Wrong dest amount\");\n\n\n\n uint srcAmountAfter = 0;\n\n\n\n if (_srcAddr != KYBER_ETH_ADDRESS) {\n\n srcAmountAfter = srcToken.balanceOf(address(this));\n\n } else {\n\n srcAmountAfter = address(this).balance;\n\n }\n\n\n\n // Send the leftover from the source token back\n\n sendLeftOver(_srcAddr);\n\n\n\n return (srcAmount - srcAmountAfter);\n\n }\n\n\n\n /// @notice Return a rate for which we can sell an amount of tokens\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _srcAmount From amount\n\n /// @return rate Rate\n\n function getSellRate(address _srcAddr, address _destAddr, uint _srcAmount) public override view returns (uint rate) {\n\n (rate, ) = KyberNetworkProxyInterface(KYBER_INTERFACE)\n\n .getExpectedRate(ERC20(_srcAddr), ERC20(_destAddr), _srcAmount);\n\n\n\n // multiply with decimal difference in src token\n\n rate = rate * (10**(18 - getDecimals(_srcAddr)));\n\n // divide with decimal difference in dest token\n\n rate = rate / (10**(18 - getDecimals(_destAddr)));\n\n }\n\n\n\n /// @notice Return a rate for which we can buy an amount of tokens\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _destAmount To amount\n\n /// @return rate Rate\n\n function getBuyRate(address _srcAddr, address _destAddr, uint _destAmount) public override view returns (uint rate) {\n\n uint256 srcRate = getSellRate(_srcAddr, _destAddr, _destAmount);\n\n uint256 srcAmount = wmul(_destAmount, srcRate);\n\n\n\n rate = getSellRate(_destAddr, _srcAddr, srcAmount);\n\n\n\n // increase rate by 3% too account for inaccuracy between sell/buy conversion\n\n rate = rate + (rate / 30);\n\n }\n\n\n\n /// @notice Send any leftover tokens, we use to clear out srcTokens after buy\n\n /// @param _srcAddr Source token address\n\n function sendLeftOver(address _srcAddr) internal {\n\n msg.sender.transfer(address(this).balance);\n\n\n\n if (_srcAddr != KYBER_ETH_ADDRESS) {\n\n ERC20(_srcAddr).safeTransfer(msg.sender, ERC20(_srcAddr).balanceOf(address(this)));\n\n }\n\n }\n\n\n\n receive() payable external {}\n\n\n\n function getDecimals(address _token) internal view returns (uint256) {\n\n if (_token == KYBER_ETH_ADDRESS) return 18;\n\n\n\n return ERC20(_token).decimals();\n\n }\n\n}\n\ncontract OasisTradeWrapper is DSMath, ExchangeInterfaceV2, AdminAuth {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n address public constant OTC_ADDRESS = 0x794e6e91555438aFc3ccF1c5076A74F42133d08D;\n\n address public constant WETH_ADDRESS = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;\n\n address public constant KYBER_ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n\n\n /// @notice Sells a _srcAmount of tokens at Oasis\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _srcAmount From amount\n\n /// @return uint Destination amount\n\n function sell(address _srcAddr, address _destAddr, uint _srcAmount) external override payable returns (uint) {\n\n address srcAddr = ethToWethAddr(_srcAddr);\n\n address destAddr = ethToWethAddr(_destAddr);\n\n\n\n ERC20(srcAddr).safeApprove(OTC_ADDRESS, _srcAmount);\n\n\n\n uint destAmount = OasisInterface(OTC_ADDRESS).sellAllAmount(srcAddr, _srcAmount, destAddr, 0);\n\n\n\n // convert weth -> eth and send back\n\n if (destAddr == WETH_ADDRESS) {\n\n TokenInterface(WETH_ADDRESS).withdraw(destAmount);\n\n msg.sender.transfer(destAmount);\n\n } else {\n\n ERC20(destAddr).safeTransfer(msg.sender, destAmount);\n\n }\n\n\n\n return destAmount;\n\n }\n\n\n\n /// @notice Buys a _destAmount of tokens at Oasis\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _destAmount To amount\n\n /// @return uint srcAmount\n\n function buy(address _srcAddr, address _destAddr, uint _destAmount) external override payable returns(uint) {\n\n address srcAddr = ethToWethAddr(_srcAddr);\n\n address destAddr = ethToWethAddr(_destAddr);\n\n\n\n ERC20(srcAddr).safeApprove(OTC_ADDRESS, uint(-1));\n\n\n\n uint srcAmount = OasisInterface(OTC_ADDRESS).buyAllAmount(destAddr, _destAmount, srcAddr, uint(-1));\n\n\n\n // convert weth -> eth and send back\n\n if (destAddr == WETH_ADDRESS) {\n\n TokenInterface(WETH_ADDRESS).withdraw(_destAmount);\n\n msg.sender.transfer(_destAmount);\n\n } else {\n\n ERC20(destAddr).safeTransfer(msg.sender, _destAmount);\n\n }\n\n\n\n // Send the leftover from the source token back\n\n sendLeftOver(srcAddr);\n\n\n\n return srcAmount;\n\n }\n\n\n\n /// @notice Return a rate for which we can sell an amount of tokens\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _srcAmount From amount\n\n /// @return uint Rate\n\n function getSellRate(address _srcAddr, address _destAddr, uint _srcAmount) public override view returns (uint) {\n\n address srcAddr = ethToWethAddr(_srcAddr);\n\n address destAddr = ethToWethAddr(_destAddr);\n\n\n\n return wdiv(OasisInterface(OTC_ADDRESS).getBuyAmount(destAddr, srcAddr, _srcAmount), _srcAmount);\n\n }\n\n\n\n\n\n /// @notice Return a rate for which we can buy an amount of tokens\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _destAmount To amount\n\n /// @return uint Rate\n\n function getBuyRate(address _srcAddr, address _destAddr, uint _destAmount) public override view returns (uint) {\n\n address srcAddr = ethToWethAddr(_srcAddr);\n\n address destAddr = ethToWethAddr(_destAddr);\n\n\n\n return wdiv(OasisInterface(OTC_ADDRESS).getPayAmount(srcAddr, destAddr, _destAmount), _destAmount);\n\n }\n\n\n\n /// @notice Send any leftover tokens, we use to clear out srcTokens after buy\n\n /// @param _srcAddr Source token address\n\n function sendLeftOver(address _srcAddr) internal {\n\n msg.sender.transfer(address(this).balance);\n\n\n\n if (_srcAddr != KYBER_ETH_ADDRESS) {\n\n ERC20(_srcAddr).safeTransfer(msg.sender, ERC20(_srcAddr).balanceOf(address(this)));\n\n }\n\n }\n\n\n\n /// @notice Converts Kybers Eth address -> Weth\n\n /// @param _src Input address\n\n function ethToWethAddr(address _src) internal pure returns (address) {\n\n return _src == KYBER_ETH_ADDRESS ? WETH_ADDRESS : _src;\n\n }\n\n\n\n\n\n receive() payable external {}\n\n}\n\ncontract UniswapV2Wrapper is DSMath, ExchangeInterfaceV2, AdminAuth {\n\n\n\n address public constant WETH_ADDRESS = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;\n\n address public constant KYBER_ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n UniswapRouterInterface public constant router = UniswapRouterInterface(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n /// @notice Sells a _srcAmount of tokens at UniswapV2\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _srcAmount From amount\n\n /// @return uint Destination amount\n\n function sell(address _srcAddr, address _destAddr, uint _srcAmount) external payable override returns (uint) {\n\n _srcAddr = ethToWethAddr(_srcAddr);\n\n _destAddr = ethToWethAddr(_destAddr);\n\n\n\n uint[] memory amounts;\n\n address[] memory path = new address[](2);\n\n path[0] = _srcAddr;\n\n path[1] = _destAddr;\n\n\n\n ERC20(_srcAddr).safeApprove(address(router), _srcAmount);\n\n\n\n // if we are buying ether\n\n if (_destAddr == WETH_ADDRESS) {\n\n amounts = router.swapExactTokensForETH(_srcAmount, 1, path, msg.sender, block.timestamp + 1);\n\n }\n\n // if we are selling token to token\n\n else {\n\n amounts = router.swapExactTokensForTokens(_srcAmount, 1, path, msg.sender, block.timestamp + 1);\n\n }\n\n\n\n return amounts[amounts.length - 1];\n\n }\n\n\n\n /// @notice Buys a _destAmount of tokens at UniswapV2\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _destAmount To amount\n\n /// @return uint srcAmount\n\n function buy(address _srcAddr, address _destAddr, uint _destAmount) external override payable returns(uint) {\n\n\n\n _srcAddr = ethToWethAddr(_srcAddr);\n\n _destAddr = ethToWethAddr(_destAddr);\n\n\n\n uint[] memory amounts;\n\n address[] memory path = new address[](2);\n\n path[0] = _srcAddr;\n\n path[1] = _destAddr;\n\n\n\n ERC20(_srcAddr).safeApprove(address(router), uint(-1));\n\n\n\n\n\n // if we are buying ether\n\n if (_destAddr == WETH_ADDRESS) {\n\n amounts = router.swapTokensForExactETH(_destAmount, uint(-1), path, msg.sender, block.timestamp + 1);\n\n }\n\n // if we are buying token to token\n\n else {\n\n amounts = router.swapTokensForExactTokens(_destAmount, uint(-1), path, msg.sender, block.timestamp + 1);\n\n }\n\n\n\n // Send the leftover from the source token back\n\n sendLeftOver(_srcAddr);\n\n\n\n return amounts[0];\n\n }\n\n\n\n /// @notice Return a rate for which we can sell an amount of tokens\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _srcAmount From amount\n\n /// @return uint Rate\n\n function getSellRate(address _srcAddr, address _destAddr, uint _srcAmount) public override view returns (uint) {\n\n _srcAddr = ethToWethAddr(_srcAddr);\n\n _destAddr = ethToWethAddr(_destAddr);\n\n\n\n address[] memory path = new address[](2);\n\n path[0] = _srcAddr;\n\n path[1] = _destAddr;\n\n\n\n uint[] memory amounts = router.getAmountsOut(_srcAmount, path);\n\n return wdiv(amounts[amounts.length - 1], _srcAmount);\n\n }\n\n\n\n /// @notice Return a rate for which we can buy an amount of tokens\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _destAmount To amount\n\n /// @return uint Rate\n\n function getBuyRate(address _srcAddr, address _destAddr, uint _destAmount) public override view returns (uint) {\n\n _srcAddr = ethToWethAddr(_srcAddr);\n\n _destAddr = ethToWethAddr(_destAddr);\n\n\n\n address[] memory path = new address[](2);\n\n path[0] = _srcAddr;\n\n path[1] = _destAddr;\n\n\n\n uint[] memory amounts = router.getAmountsIn(_destAmount, path);\n\n return wdiv(amounts[0], _destAmount);\n\n }\n\n\n\n /// @notice Send any leftover tokens, we use to clear out srcTokens after buy\n\n /// @param _srcAddr Source token address\n\n function sendLeftOver(address _srcAddr) internal {\n\n msg.sender.transfer(address(this).balance);\n\n\n\n if (_srcAddr != KYBER_ETH_ADDRESS) {\n\n ERC20(_srcAddr).safeTransfer(msg.sender, ERC20(_srcAddr).balanceOf(address(this)));\n\n }\n\n }\n\n\n\n /// @notice Converts Kybers Eth address -> Weth\n\n /// @param _src Input address\n\n function ethToWethAddr(address _src) internal pure returns (address) {\n\n return _src == KYBER_ETH_ADDRESS ? WETH_ADDRESS : _src;\n\n }\n\n\n\n receive() payable external {}\n\n}\n\ncontract UniswapWrapper is DSMath, ExchangeInterfaceV2, AdminAuth {\n\n\n\n address public constant WETH_ADDRESS = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;\n\n address public constant KYBER_ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n address public constant UNISWAP_FACTORY = 0xc0a47dFe034B400B47bDaD5FecDa2621de6c4d95;\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n /// @notice Sells a _srcAmount of tokens at Uniswap\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _srcAmount From amount\n\n /// @return uint Destination amount\n\n function sell(address _srcAddr, address _destAddr, uint _srcAmount) external payable override returns (uint) {\n\n address uniswapExchangeAddr;\n\n uint destAmount;\n\n\n\n _srcAddr = ethToWethAddr(_srcAddr);\n\n _destAddr = ethToWethAddr(_destAddr);\n\n\n\n // if we are buying ether\n\n if (_destAddr == WETH_ADDRESS) {\n\n uniswapExchangeAddr = UniswapFactoryInterface(UNISWAP_FACTORY).getExchange(_srcAddr);\n\n\n\n ERC20(_srcAddr).safeApprove(uniswapExchangeAddr, _srcAmount);\n\n\n\n destAmount = UniswapExchangeInterface(uniswapExchangeAddr).\n\n tokenToEthTransferInput(_srcAmount, 1, block.timestamp + 1, msg.sender);\n\n }\n\n // if we are selling token to token\n\n else {\n\n uniswapExchangeAddr = UniswapFactoryInterface(UNISWAP_FACTORY).getExchange(_srcAddr);\n\n\n\n ERC20(_srcAddr).safeApprove(uniswapExchangeAddr, _srcAmount);\n\n\n\n destAmount = UniswapExchangeInterface(uniswapExchangeAddr).\n\n tokenToTokenTransferInput(_srcAmount, 1, 1, block.timestamp + 1, msg.sender, _destAddr);\n\n }\n\n\n\n return destAmount;\n\n }\n\n\n\n /// @notice Buys a _destAmount of tokens at Uniswap\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _destAmount To amount\n\n /// @return uint srcAmount\n\n function buy(address _srcAddr, address _destAddr, uint _destAmount) external override payable returns(uint) {\n\n address uniswapExchangeAddr;\n\n uint srcAmount;\n\n\n\n _srcAddr = ethToWethAddr(_srcAddr);\n\n _destAddr = ethToWethAddr(_destAddr);\n\n\n\n // if we are buying ether\n\n if (_destAddr == WETH_ADDRESS) {\n\n uniswapExchangeAddr = UniswapFactoryInterface(UNISWAP_FACTORY).getExchange(_srcAddr);\n\n\n\n ERC20(_srcAddr).safeApprove(uniswapExchangeAddr, uint(-1));\n\n\n\n srcAmount = UniswapExchangeInterface(uniswapExchangeAddr).\n\n tokenToEthTransferOutput(_destAmount, uint(-1), block.timestamp + 1, msg.sender);\n\n }\n\n // if we are buying token to token\n\n else {\n\n uniswapExchangeAddr = UniswapFactoryInterface(UNISWAP_FACTORY).getExchange(_srcAddr);\n\n\n\n ERC20(_srcAddr).safeApprove(uniswapExchangeAddr, uint(-1));\n\n\n\n srcAmount = UniswapExchangeInterface(uniswapExchangeAddr).\n\n tokenToTokenTransferOutput(_destAmount, uint(-1), uint(-1), block.timestamp + 1, msg.sender, _destAddr);\n\n }\n\n\n\n // Send the leftover from the source token back\n\n sendLeftOver(_srcAddr);\n\n\n\n return srcAmount;\n\n }\n\n\n\n /// @notice Return a rate for which we can sell an amount of tokens\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _srcAmount From amount\n\n /// @return uint Rate\n\n function getSellRate(address _srcAddr, address _destAddr, uint _srcAmount) public override view returns (uint) {\n\n _srcAddr = ethToWethAddr(_srcAddr);\n\n _destAddr = ethToWethAddr(_destAddr);\n\n\n\n if(_srcAddr == WETH_ADDRESS) {\n\n address uniswapTokenAddress = UniswapFactoryInterface(UNISWAP_FACTORY).getExchange(_destAddr);\n\n return wdiv(UniswapExchangeInterface(uniswapTokenAddress).getEthToTokenInputPrice(_srcAmount), _srcAmount);\n\n } else if (_destAddr == WETH_ADDRESS) {\n\n address uniswapTokenAddress = UniswapFactoryInterface(UNISWAP_FACTORY).getExchange(_srcAddr);\n\n return wdiv(UniswapExchangeInterface(uniswapTokenAddress).getTokenToEthInputPrice(_srcAmount), _srcAmount);\n\n } else {\n\n uint ethBought = UniswapExchangeInterface(UniswapFactoryInterface(UNISWAP_FACTORY).getExchange(_srcAddr)).getTokenToEthInputPrice(_srcAmount);\n\n return wdiv(UniswapExchangeInterface(UniswapFactoryInterface(UNISWAP_FACTORY).getExchange(_destAddr)).getEthToTokenInputPrice(ethBought), _srcAmount);\n\n }\n\n }\n\n\n\n /// @notice Return a rate for which we can buy an amount of tokens\n\n /// @param _srcAddr From token\n\n /// @param _destAddr To token\n\n /// @param _destAmount To amount\n\n /// @return uint Rate\n\n function getBuyRate(address _srcAddr, address _destAddr, uint _destAmount) public override view returns (uint) {\n\n _srcAddr = ethToWethAddr(_srcAddr);\n\n _destAddr = ethToWethAddr(_destAddr);\n\n\n\n if(_srcAddr == WETH_ADDRESS) {\n\n address uniswapTokenAddress = UniswapFactoryInterface(UNISWAP_FACTORY).getExchange(_destAddr);\n\n return wdiv(UniswapExchangeInterface(uniswapTokenAddress).getEthToTokenOutputPrice(_destAmount), _destAmount);\n\n } else if (_destAddr == WETH_ADDRESS) {\n\n address uniswapTokenAddress = UniswapFactoryInterface(UNISWAP_FACTORY).getExchange(_srcAddr);\n\n return wdiv(UniswapExchangeInterface(uniswapTokenAddress).getTokenToEthOutputPrice(_destAmount), _destAmount);\n\n } else {\n\n uint ethNeeded = UniswapExchangeInterface(UniswapFactoryInterface(UNISWAP_FACTORY).getExchange(_destAddr)).getTokenToEthOutputPrice(_destAmount);\n\n return wdiv(UniswapExchangeInterface(UniswapFactoryInterface(UNISWAP_FACTORY).getExchange(_srcAddr)).getEthToTokenOutputPrice(ethNeeded), _destAmount);\n\n }\n\n }\n\n\n\n /// @notice Send any leftover tokens, we use to clear out srcTokens after buy\n\n /// @param _srcAddr Source token address\n\n function sendLeftOver(address _srcAddr) internal {\n\n msg.sender.transfer(address(this).balance);\n\n\n\n if (_srcAddr != KYBER_ETH_ADDRESS) {\n\n ERC20(_srcAddr).safeTransfer(msg.sender, ERC20(_srcAddr).balanceOf(address(this)));\n\n }\n\n }\n\n\n\n /// @notice Converts Kybers Eth address -> Weth\n\n /// @param _src Input address\n\n function ethToWethAddr(address _src) internal pure returns (address) {\n\n return _src == KYBER_ETH_ADDRESS ? WETH_ADDRESS : _src;\n\n }\n\n\n\n receive() payable external {}\n\n}\n\ncontract DyDxFlashLoanTaker is DydxFlashLoanBase, ProxyPermission {\n\n\n\n address public constant WETH_ADDR = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;\n\n address public constant DEFISAVER_LOGGER = 0x5c55B921f590a89C1Ebe84dF170E655a82b62126;\n\n\n\n /// @notice Takes flash loan for _receiver\n\n /// @dev Receiver must send back WETH + 2 wei after executing transaction\n\n /// @dev Method is meant to be called from proxy and proxy will give authorization to _receiver\n\n /// @param _receiver Address of funds receiver\n\n /// @param _ethAmount ETH amount that needs to be pulled from dydx \n\n /// @param _encodedData Bytes with packed data\n\n function takeLoan(address _receiver, uint256 _ethAmount, bytes memory _encodedData) public {\n\n ISoloMargin solo = ISoloMargin(SOLO_MARGIN_ADDRESS);\n\n\n\n // Get marketId from token address\n\n uint256 marketId = _getMarketIdFromTokenAddress(WETH_ADDR);\n\n\n\n // Calculate repay amount (_amount + (2 wei))\n\n // Approve transfer from\n\n uint256 repayAmount = _getRepaymentAmountInternal(_ethAmount);\n\n ERC20(WETH_ADDR).approve(SOLO_MARGIN_ADDRESS, repayAmount);\n\n\n\n Actions.ActionArgs[] memory operations = new Actions.ActionArgs[](3);\n\n\n\n operations[0] = _getWithdrawAction(marketId, _ethAmount, _receiver);\n\n operations[1] = _getCallAction(\n\n _encodedData,\n\n _receiver\n\n );\n\n operations[2] = _getDepositAction(marketId, repayAmount, address(this));\n\n\n\n Account.Info[] memory accountInfos = new Account.Info[](1);\n\n accountInfos[0] = _getAccountInfo();\n\n\n\n givePermission(_receiver);\n\n solo.operate(accountInfos, operations);\n\n removePermission(_receiver);\n\n\n\n DefisaverLogger(DEFISAVER_LOGGER).Log(address(this), msg.sender, \"DyDxFlashLoanTaken\", abi.encode(_receiver, _ethAmount, _encodedData));\n\n }\n\n}\n\nabstract contract CTokenInterface is ERC20 {\n\n function mint(uint256 mintAmount) external virtual returns (uint256);\n\n\n\n // function mint() external virtual payable;\n\n\n\n function accrueInterest() public virtual returns (uint);\n\n\n\n function redeem(uint256 redeemTokens) external virtual returns (uint256);\n\n\n\n function redeemUnderlying(uint256 redeemAmount) external virtual returns (uint256);\n\n\n\n function borrow(uint256 borrowAmount) external virtual returns (uint256);\n\n\n\n function repayBorrow(uint256 repayAmount) external virtual returns (uint256);\n\n\n\n function repayBorrow() external virtual payable;\n\n\n\n function repayBorrowBehalf(address borrower, uint256 repayAmount) external virtual returns (uint256);\n\n\n\n function repayBorrowBehalf(address borrower) external virtual payable;\n\n\n\n function liquidateBorrow(address borrower, uint256 repayAmount, address cTokenCollateral)\n\n external virtual\n\n returns (uint256);\n\n\n\n function liquidateBorrow(address borrower, address cTokenCollateral) external virtual payable;\n\n\n\n function exchangeRateCurrent() external virtual returns (uint256);\n\n\n\n function supplyRatePerBlock() external virtual returns (uint256);\n\n\n\n function borrowRatePerBlock() external virtual returns (uint256);\n\n\n\n function totalReserves() external virtual returns (uint256);\n\n\n\n function reserveFactorMantissa() external virtual returns (uint256);\n\n\n\n function borrowBalanceCurrent(address account) external virtual returns (uint256);\n\n\n\n function totalBorrowsCurrent() external virtual returns (uint256);\n\n\n\n function getCash() external virtual returns (uint256);\n\n\n\n function balanceOfUnderlying(address owner) external virtual returns (uint256);\n\n\n\n function underlying() external virtual returns (address);\n\n\n\n function getAccountSnapshot(address account) external virtual view returns (uint, uint, uint, uint);\n\n}\n\nabstract contract ISubscriptionsV2 is StaticV2 {\n\n\n\n function getOwner(uint _cdpId) external view virtual returns(address);\n\n function getSubscribedInfo(uint _cdpId) public view virtual returns(bool, uint128, uint128, uint128, uint128, address, uint coll, uint debt);\n\n function getCdpHolder(uint _cdpId) public view virtual returns (bool subscribed, CdpHolder memory);\n\n}\n\ncontract MCDMonitorV2 is DSMath, AdminAuth, GasBurner, StaticV2 {\n\n\n\n uint public REPAY_GAS_TOKEN = 25;\n\n uint public BOOST_GAS_TOKEN = 25;\n\n\n\n uint public MAX_GAS_PRICE = 200000000000; // 200 gwei\n\n\n\n uint public REPAY_GAS_COST = 2500000;\n\n uint public BOOST_GAS_COST = 2500000;\n\n\n\n MCDMonitorProxyV2 public monitorProxyContract;\n\n ISubscriptionsV2 public subscriptionsContract;\n\n address public mcdSaverTakerAddress;\n\n\n\n address public constant BOT_REGISTRY_ADDRESS = 0x637726f8b08a7ABE3aE3aCaB01A80E2d8ddeF77B;\n\n\n\n Manager public manager = Manager(0x5ef30b9986345249bc32d8928B7ee64DE9435E39);\n\n Vat public vat = Vat(0x35D1b3F3D7966A1DFe207aa4514C12a259A0492B);\n\n Spotter public spotter = Spotter(0x65C79fcB50Ca1594B025960e539eD7A9a6D434A3);\n\n\n\n DefisaverLogger public constant logger = DefisaverLogger(0x5c55B921f590a89C1Ebe84dF170E655a82b62126);\n\n\n\n modifier onlyApproved() {\n\n require(BotRegistry(BOT_REGISTRY_ADDRESS).botList(msg.sender), \"Not auth bot\");\n\n _;\n\n }\n\n\n\n constructor(address _monitorProxy, address _subscriptions, address _mcdSaverTakerAddress) public {\n\n monitorProxyContract = MCDMonitorProxyV2(_monitorProxy);\n\n subscriptionsContract = ISubscriptionsV2(_subscriptions);\n\n mcdSaverTakerAddress = _mcdSaverTakerAddress;\n\n }\n\n\n\n /// @notice Bots call this method to repay for user when conditions are met\n\n /// @dev If the contract ownes gas token it will try and use it for gas price reduction\n\n function repayFor(\n\n SaverExchangeCore.ExchangeData memory _exchangeData,\n\n uint _cdpId,\n\n uint _nextPrice,\n\n address _joinAddr\n\n ) public payable onlyApproved burnGas(REPAY_GAS_TOKEN) {\n\n\n\n (bool isAllowed, uint ratioBefore) = canCall(Method.Repay, _cdpId, _nextPrice);\n\n require(isAllowed);\n\n\n\n uint gasCost = calcGasCost(REPAY_GAS_COST);\n\n\n\n address owner = subscriptionsContract.getOwner(_cdpId);\n\n\n\n monitorProxyContract.callExecute{value: msg.value}(\n\n owner,\n\n mcdSaverTakerAddress,\n\n abi.encodeWithSignature(\n\n \"repayWithLoan((address,address,uint256,uint256,uint256,address,address,bytes,uint256),uint256,uint256,address)\",\n\n _exchangeData, _cdpId, gasCost, _joinAddr));\n\n\n\n\n\n (bool isGoodRatio, uint ratioAfter) = ratioGoodAfter(Method.Repay, _cdpId, _nextPrice);\n\n require(isGoodRatio);\n\n\n\n returnEth();\n\n\n\n logger.Log(address(this), owner, \"AutomaticMCDRepay\", abi.encode(ratioBefore, ratioAfter));\n\n }\n\n\n\n /// @notice Bots call this method to boost for user when conditions are met\n\n /// @dev If the contract ownes gas token it will try and use it for gas price reduction\n\n function boostFor(\n\n SaverExchangeCore.ExchangeData memory _exchangeData,\n\n uint _cdpId,\n\n uint _nextPrice,\n\n address _joinAddr\n\n ) public payable onlyApproved burnGas(BOOST_GAS_TOKEN) {\n\n\n\n (bool isAllowed, uint ratioBefore) = canCall(Method.Boost, _cdpId, _nextPrice);\n\n require(isAllowed);\n\n\n\n uint gasCost = calcGasCost(BOOST_GAS_COST);\n\n\n\n address owner = subscriptionsContract.getOwner(_cdpId);\n\n\n\n monitorProxyContract.callExecute{value: msg.value}(\n\n owner,\n\n mcdSaverTakerAddress,\n\n abi.encodeWithSignature(\n\n \"boostWithLoan((address,address,uint256,uint256,uint256,address,address,bytes,uint256),uint256,uint256,address)\",\n\n _exchangeData, _cdpId, gasCost, _joinAddr));\n\n\n\n (bool isGoodRatio, uint ratioAfter) = ratioGoodAfter(Method.Boost, _cdpId, _nextPrice);\n\n require(isGoodRatio);\n\n\n\n returnEth();\n\n\n\n logger.Log(address(this), owner, \"AutomaticMCDBoost\", abi.encode(ratioBefore, ratioAfter));\n\n }\n\n\n\n/******************* INTERNAL METHODS ********************************/\n\n function returnEth() internal {\n\n // return if some eth left\n\n if (address(this).balance > 0) {\n\n msg.sender.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n/******************* STATIC METHODS ********************************/\n\n\n\n /// @notice Returns an address that owns the CDP\n\n /// @param _cdpId Id of the CDP\n\n function getOwner(uint _cdpId) public view returns(address) {\n\n return manager.owns(_cdpId);\n\n }\n\n\n\n /// @notice Gets CDP info (collateral, debt)\n\n /// @param _cdpId Id of the CDP\n\n /// @param _ilk Ilk of the CDP\n\n function getCdpInfo(uint _cdpId, bytes32 _ilk) public view returns (uint, uint) {\n\n address urn = manager.urns(_cdpId);\n\n\n\n (uint collateral, uint debt) = vat.urns(_ilk, urn);\n\n (,uint rate,,,) = vat.ilks(_ilk);\n\n\n\n return (collateral, rmul(debt, rate));\n\n }\n\n\n\n /// @notice Gets a price of the asset\n\n /// @param _ilk Ilk of the CDP\n\n function getPrice(bytes32 _ilk) public view returns (uint) {\n\n (, uint mat) = spotter.ilks(_ilk);\n\n (,,uint spot,,) = vat.ilks(_ilk);\n\n\n\n return rmul(rmul(spot, spotter.par()), mat);\n\n }\n\n\n\n /// @notice Gets CDP ratio\n\n /// @param _cdpId Id of the CDP\n\n /// @param _nextPrice Next price for user\n\n function getRatio(uint _cdpId, uint _nextPrice) public view returns (uint) {\n\n bytes32 ilk = manager.ilks(_cdpId);\n\n uint price = (_nextPrice == 0) ? getPrice(ilk) : _nextPrice;\n\n\n\n (uint collateral, uint debt) = getCdpInfo(_cdpId, ilk);\n\n\n\n if (debt == 0) return 0;\n\n\n\n return rdiv(wmul(collateral, price), debt) / (10 ** 18);\n\n }\n\n\n\n /// @notice Checks if Boost/Repay could be triggered for the CDP\n\n /// @dev Called by MCDMonitor to enforce the min/max check\n\n function canCall(Method _method, uint _cdpId, uint _nextPrice) public view returns(bool, uint) {\n\n bool subscribed;\n\n CdpHolder memory holder;\n\n (subscribed, holder) = subscriptionsContract.getCdpHolder(_cdpId);\n\n\n\n // check if cdp is subscribed\n\n if (!subscribed) return (false, 0);\n\n\n\n // check if using next price is allowed\n\n if (_nextPrice > 0 && !holder.nextPriceEnabled) return (false, 0);\n\n\n\n // check if boost and boost allowed\n\n if (_method == Method.Boost && !holder.boostEnabled) return (false, 0);\n\n\n\n // check if owner is still owner\n\n if (getOwner(_cdpId) != holder.owner) return (false, 0);\n\n\n\n uint currRatio = getRatio(_cdpId, _nextPrice);\n\n\n\n if (_method == Method.Repay) {\n\n return (currRatio < holder.minRatio, currRatio);\n\n } else if (_method == Method.Boost) {\n\n return (currRatio > holder.maxRatio, currRatio);\n\n }\n\n }\n\n\n\n /// @dev After the Boost/Repay check if the ratio doesn't trigger another call\n\n function ratioGoodAfter(Method _method, uint _cdpId, uint _nextPrice) public view returns(bool, uint) {\n\n CdpHolder memory holder;\n\n\n\n (, holder) = subscriptionsContract.getCdpHolder(_cdpId);\n\n\n\n uint currRatio = getRatio(_cdpId, _nextPrice);\n\n\n\n if (_method == Method.Repay) {\n\n return (currRatio < holder.maxRatio, currRatio);\n\n } else if (_method == Method.Boost) {\n\n return (currRatio > holder.minRatio, currRatio);\n\n }\n\n }\n\n\n\n /// @notice Calculates gas cost (in Eth) of tx\n\n /// @dev Gas price is limited to MAX_GAS_PRICE to prevent attack of draining user CDP\n\n /// @param _gasAmount Amount of gas used for the tx\n\n function calcGasCost(uint _gasAmount) public view returns (uint) {\n\n uint gasPrice = tx.gasprice <= MAX_GAS_PRICE ? tx.gasprice : MAX_GAS_PRICE;\n\n\n\n return mul(gasPrice, _gasAmount);\n\n }\n\n\n\n/******************* OWNER ONLY OPERATIONS ********************************/\n\n\n\n /// @notice Allows owner to change gas cost for boost operation, but only up to 3 millions\n\n /// @param _gasCost New gas cost for boost method\n\n function changeBoostGasCost(uint _gasCost) public onlyOwner {\n\n require(_gasCost < 3000000);\n\n\n\n BOOST_GAS_COST = _gasCost;\n\n }\n\n\n\n /// @notice Allows owner to change gas cost for repay operation, but only up to 3 millions\n\n /// @param _gasCost New gas cost for repay method\n\n function changeRepayGasCost(uint _gasCost) public onlyOwner {\n\n require(_gasCost < 3000000);\n\n\n\n REPAY_GAS_COST = _gasCost;\n\n }\n\n\n\n /// @notice Allows owner to change max gas price\n\n /// @param _maxGasPrice New max gas price\n\n function changeMaxGasPrice(uint _maxGasPrice) public onlyOwner {\n\n require(_maxGasPrice < 500000000000);\n\n\n\n MAX_GAS_PRICE = _maxGasPrice;\n\n }\n\n\n\n /// @notice Allows owner to change the amount of gas token burned per function call\n\n /// @param _gasAmount Amount of gas token\n\n /// @param _isRepay Flag to know for which function we are setting the gas token amount\n\n function changeGasTokenAmount(uint _gasAmount, bool _isRepay) public onlyOwner {\n\n if (_isRepay) {\n\n REPAY_GAS_TOKEN = _gasAmount;\n\n } else {\n\n BOOST_GAS_TOKEN = _gasAmount;\n\n }\n\n }\n\n}\n\ncontract MCDCloseFlashLoan is SaverExchangeCore, MCDSaverProxyHelper, FlashLoanReceiverBase, AdminAuth {\n\n ILendingPoolAddressesProvider public LENDING_POOL_ADDRESS_PROVIDER = ILendingPoolAddressesProvider(0x24a42fD28C976A61Df5D00D0599C34c4f90748c8);\n\n\n\n uint public constant SERVICE_FEE = 400; // 0.25% Fee\n\n\n\n bytes32 internal constant ETH_ILK = 0x4554482d41000000000000000000000000000000000000000000000000000000;\n\n\n\n address public constant DAI_ADDRESS = 0x6B175474E89094C44Da98b954EedeAC495271d0F;\n\n address public constant DAI_JOIN_ADDRESS = 0x9759A6Ac90977b93B58547b4A71c78317f391A28;\n\n address public constant ETH_JOIN_ADDRESS = 0x2F0b23f53734252Bda2277357e97e1517d6B042A;\n\n address public constant SPOTTER_ADDRESS = 0x65C79fcB50Ca1594B025960e539eD7A9a6D434A3;\n\n address public constant VAT_ADDRESS = 0x35D1b3F3D7966A1DFe207aa4514C12a259A0492B;\n\n\n\n Manager public constant manager = Manager(0x5ef30b9986345249bc32d8928B7ee64DE9435E39);\n\n DaiJoin public constant daiJoin = DaiJoin(DAI_JOIN_ADDRESS);\n\n Spotter public constant spotter = Spotter(SPOTTER_ADDRESS);\n\n Vat public constant vat = Vat(VAT_ADDRESS);\n\n\n\n struct CloseData {\n\n uint cdpId;\n\n uint collAmount;\n\n uint daiAmount;\n\n uint minAccepted;\n\n address joinAddr;\n\n address proxy;\n\n uint flFee;\n\n bool toDai;\n\n address reserve;\n\n uint amount;\n\n }\n\n\n\n constructor() FlashLoanReceiverBase(LENDING_POOL_ADDRESS_PROVIDER) public {}\n\n\n\n function executeOperation(\n\n address _reserve,\n\n uint256 _amount,\n\n uint256 _fee,\n\n bytes calldata _params)\n\n external override {\n\n\n\n (\n\n uint[8] memory numData,\n\n address[5] memory addrData,\n\n bytes memory callData,\n\n address proxy,\n\n bool toDai\n\n )\n\n = abi.decode(_params, (uint256[8],address[5],bytes,address,bool));\n\n\n\n ExchangeData memory exchangeData = ExchangeData({\n\n srcAddr: addrData[0],\n\n destAddr: addrData[1],\n\n srcAmount: numData[4],\n\n destAmount: numData[5],\n\n minPrice: numData[6],\n\n wrapper: addrData[3],\n\n exchangeAddr: addrData[2],\n\n callData: callData,\n\n price0x: numData[7]\n\n });\n\n\n\n CloseData memory closeData = CloseData({\n\n cdpId: numData[0],\n\n collAmount: numData[1],\n\n daiAmount: numData[2],\n\n minAccepted: numData[3],\n\n joinAddr: addrData[4],\n\n proxy: proxy,\n\n flFee: _fee,\n\n toDai: toDai,\n\n reserve: _reserve,\n\n amount: _amount\n\n });\n\n\n\n address user = DSProxy(payable(closeData.proxy)).owner();\n\n\n\n closeCDP(closeData, exchangeData, user);\n\n }\n\n\n\n function closeCDP(\n\n CloseData memory _closeData,\n\n ExchangeData memory _exchangeData,\n\n address _user\n\n ) internal {\n\n\n\n paybackDebt(_closeData.cdpId, manager.ilks(_closeData.cdpId), _closeData.daiAmount); // payback whole debt\n\n drawMaxCollateral(_closeData.cdpId, _closeData.joinAddr, _closeData.collAmount); // draw whole collateral\n\n\n\n uint daiSwaped = 0;\n\n uint dfsFee = 0;\n\n\n\n if (_closeData.toDai) {\n\n _exchangeData.srcAmount = _closeData.collAmount;\n\n (, daiSwaped) = _sell(_exchangeData);\n\n\n\n dfsFee = getFee(daiSwaped, _user);\n\n } else {\n\n dfsFee = getFee(_closeData.daiAmount, _user);\n\n\n\n _exchangeData.destAmount = (_closeData.daiAmount + _closeData.flFee + dfsFee);\n\n (, daiSwaped) = _buy(_exchangeData);\n\n }\n\n\n\n takeFee(dfsFee);\n\n\n\n address tokenAddr = getVaultCollAddr(_closeData.joinAddr);\n\n\n\n if (_closeData.toDai) {\n\n tokenAddr = DAI_ADDRESS;\n\n }\n\n\n\n require(getBalance(tokenAddr) >= _closeData.minAccepted, \"Below min. number of eth specified\");\n\n\n\n transferFundsBackToPoolInternal(_closeData.reserve, _closeData.amount.add(_closeData.flFee));\n\n\n\n sendLeftover(tokenAddr, DAI_ADDRESS, payable(_user));\n\n\n\n }\n\n\n\n function drawMaxCollateral(uint _cdpId, address _joinAddr, uint _amount) internal returns (uint) {\n\n manager.frob(_cdpId, -toPositiveInt(_amount), 0);\n\n manager.flux(_cdpId, address(this), _amount);\n\n\n\n uint joinAmount = _amount;\n\n\n\n if (Join(_joinAddr).dec() != 18) {\n\n joinAmount = _amount / (10 ** (18 - Join(_joinAddr).dec()));\n\n }\n\n\n\n Join(_joinAddr).exit(address(this), joinAmount);\n\n\n\n if (_joinAddr == ETH_JOIN_ADDRESS) {\n\n Join(_joinAddr).gem().withdraw(joinAmount); // Weth -> Eth\n\n }\n\n\n\n return joinAmount;\n\n }\n\n\n\n function paybackDebt(uint _cdpId, bytes32 _ilk, uint _daiAmount) internal {\n\n address urn = manager.urns(_cdpId);\n\n\n\n daiJoin.dai().approve(DAI_JOIN_ADDRESS, _daiAmount);\n\n daiJoin.join(urn, _daiAmount);\n\n\n\n manager.frob(_cdpId, 0, normalizePaybackAmount(VAT_ADDRESS, urn, _ilk));\n\n }\n\n\n\n function takeFee(uint _feeAmount) internal returns (uint) {\n\n ERC20(DAI_ADDRESS).transfer(WALLET_ID, _feeAmount);\n\n }\n\n\n\n function getFee(uint _amount, address _owner) internal view returns (uint feeAmount) {\n\n uint fee = SERVICE_FEE;\n\n\n\n if (Discount(DISCOUNT_ADDRESS).isCustomFeeSet(_owner)) {\n\n fee = Discount(DISCOUNT_ADDRESS).getCustomServiceFee(_owner);\n\n }\n\n\n\n feeAmount = (fee == 0) ? 0 : (_amount / fee);\n\n\n\n // fee can't go over 20% of the whole amount\n\n if (feeAmount > (_amount / 5)) {\n\n feeAmount = _amount / 5;\n\n }\n\n }\n\n\n\n function getVaultCollAddr(address _joinAddr) internal view returns (address) {\n\n address tokenAddr = address(Join(_joinAddr).gem());\n\n\n\n if (tokenAddr == WETH_ADDRESS) {\n\n return KYBER_ETH_ADDRESS;\n\n }\n\n\n\n return tokenAddr;\n\n }\n\n\n\n function getPrice(bytes32 _ilk) public view returns (uint256) {\n\n (, uint256 mat) = spotter.ilks(_ilk);\n\n (, , uint256 spot, , ) = vat.ilks(_ilk);\n\n\n\n return rmul(rmul(spot, spotter.par()), mat);\n\n }\n\n\n\n receive() external override(FlashLoanReceiverBase, SaverExchangeCore) payable {}\n\n\n\n}\n\ncontract MCDCloseTaker is MCDSaverProxyHelper {\n\n\n\n address public constant SUBSCRIPTION_ADDRESS_NEW = 0xC45d4f6B6bf41b6EdAA58B01c4298B8d9078269a;\n\n\n\n address public constant DEFISAVER_LOGGER = 0x5c55B921f590a89C1Ebe84dF170E655a82b62126;\n\n\n\n ILendingPool public constant lendingPool = ILendingPool(0x398eC7346DcD622eDc5ae82352F02bE94C62d119);\n\n\n\n // solhint-disable-next-line const-name-snakecase\n\n Manager public constant manager = Manager(0x5ef30b9986345249bc32d8928B7ee64DE9435E39);\n\n\n\n address public constant SPOTTER_ADDRESS = 0x65C79fcB50Ca1594B025960e539eD7A9a6D434A3;\n\n address public constant VAT_ADDRESS = 0x35D1b3F3D7966A1DFe207aa4514C12a259A0492B;\n\n address public constant DAI_ADDRESS = 0x6B175474E89094C44Da98b954EedeAC495271d0F;\n\n\n\n // solhint-disable-next-line const-name-snakecase\n\n DefisaverLogger public constant logger = DefisaverLogger(DEFISAVER_LOGGER);\n\n\n\n struct CloseData {\n\n uint cdpId;\n\n address joinAddr;\n\n uint collAmount;\n\n uint daiAmount;\n\n uint minAccepted;\n\n bool wholeDebt;\n\n bool toDai;\n\n }\n\n\n\n Vat public constant vat = Vat(VAT_ADDRESS);\n\n Spotter public constant spotter = Spotter(SPOTTER_ADDRESS);\n\n\n\n function closeWithLoan(\n\n SaverExchangeCore.ExchangeData memory _exchangeData,\n\n CloseData memory _closeData,\n\n address payable mcdCloseFlashLoan\n\n ) public payable {\n\n mcdCloseFlashLoan.transfer(msg.value); // 0x fee\n\n\n\n if (_closeData.wholeDebt) {\n\n _closeData.daiAmount = getAllDebt(\n\n VAT_ADDRESS,\n\n manager.urns(_closeData.cdpId),\n\n manager.urns(_closeData.cdpId),\n\n manager.ilks(_closeData.cdpId)\n\n );\n\n\n\n (_closeData.collAmount, )\n\n = getCdpInfo(manager, _closeData.cdpId, manager.ilks(_closeData.cdpId));\n\n }\n\n\n\n manager.cdpAllow(_closeData.cdpId, mcdCloseFlashLoan, 1);\n\n\n\n (uint[8] memory numData, address[5] memory addrData, bytes memory callData)\n\n = _packData(_closeData, _exchangeData);\n\n bytes memory paramsData = abi.encode(numData, addrData, callData, address(this), _closeData.toDai);\n\n\n\n lendingPool.flashLoan(mcdCloseFlashLoan, DAI_ADDRESS, _closeData.daiAmount, paramsData);\n\n\n\n manager.cdpAllow(_closeData.cdpId, mcdCloseFlashLoan, 0);\n\n\n\n // If sub. to automatic protection unsubscribe\n\n unsubscribe(SUBSCRIPTION_ADDRESS_NEW, _closeData.cdpId);\n\n\n\n logger.Log(address(this), msg.sender, \"MCDClose\", abi.encode(_closeData.cdpId, _closeData.collAmount, _closeData.daiAmount, _closeData.toDai));\n\n }\n\n\n\n /// @notice Gets the maximum amount of debt available to generate\n\n /// @param _cdpId Id of the CDP\n\n /// @param _ilk Ilk of the CDP\n\n function getMaxDebt(uint256 _cdpId, bytes32 _ilk) public view returns (uint256) {\n\n uint256 price = getPrice(_ilk);\n\n\n\n (, uint256 mat) = spotter.ilks(_ilk);\n\n (uint256 collateral, uint256 debt) = getCdpInfo(manager, _cdpId, _ilk);\n\n\n\n return sub(wdiv(wmul(collateral, price), mat), debt);\n\n }\n\n\n\n /// @notice Gets a price of the asset\n\n /// @param _ilk Ilk of the CDP\n\n function getPrice(bytes32 _ilk) public view returns (uint256) {\n\n (, uint256 mat) = spotter.ilks(_ilk);\n\n (, , uint256 spot, , ) = vat.ilks(_ilk);\n\n\n\n return rmul(rmul(spot, spotter.par()), mat);\n\n }\n\n\n\n function unsubscribe(address _subContract, uint _cdpId) internal {\n\n (, bool isSubscribed) = IMCDSubscriptions(_subContract).subscribersPos(_cdpId);\n\n\n\n if (isSubscribed) {\n\n IMCDSubscriptions(_subContract).unsubscribe(_cdpId);\n\n }\n\n }\n\n\n\n function _packData(\n\n CloseData memory _closeData,\n\n SaverExchangeCore.ExchangeData memory exchangeData\n\n ) internal pure returns (uint[8] memory numData, address[5] memory addrData, bytes memory callData) {\n\n\n\n numData = [\n\n _closeData.cdpId,\n\n _closeData.collAmount,\n\n _closeData.daiAmount,\n\n _closeData.minAccepted,\n\n exchangeData.srcAmount,\n\n exchangeData.destAmount,\n\n exchangeData.minPrice,\n\n exchangeData.price0x\n\n ];\n\n\n\n addrData = [\n\n exchangeData.srcAddr,\n\n exchangeData.destAddr,\n\n exchangeData.exchangeAddr,\n\n exchangeData.wrapper,\n\n _closeData.joinAddr\n\n ];\n\n\n\n callData = exchangeData.callData;\n\n }\n\n\n\n}\n\ncontract MCDCreateFlashLoan is SaverExchangeCore, AdminAuth, FlashLoanReceiverBase {\n\n address public constant CREATE_PROXY_ACTIONS = 0x6d0984E80a86f26c0dd564ca0CF74a8E9Da03305;\n\n\n\n uint public constant SERVICE_FEE = 400; // 0.25% Fee\n\n address public constant DAI_ADDRESS = 0x6B175474E89094C44Da98b954EedeAC495271d0F;\n\n\n\n ILendingPoolAddressesProvider public LENDING_POOL_ADDRESS_PROVIDER = ILendingPoolAddressesProvider(0x24a42fD28C976A61Df5D00D0599C34c4f90748c8);\n\n\n\n address public constant ETH_JOIN_ADDRESS = 0x2F0b23f53734252Bda2277357e97e1517d6B042A;\n\n address public constant DAI_JOIN_ADDRESS = 0x9759A6Ac90977b93B58547b4A71c78317f391A28;\n\n address public constant JUG_ADDRESS = 0x19c0976f590D67707E62397C87829d896Dc0f1F1;\n\n address public constant MANAGER_ADDRESS = 0x5ef30b9986345249bc32d8928B7ee64DE9435E39;\n\n\n\n constructor() FlashLoanReceiverBase(LENDING_POOL_ADDRESS_PROVIDER) public {}\n\n\n\n function executeOperation(\n\n address _reserve,\n\n uint256 _amount,\n\n uint256 _fee,\n\n bytes calldata _params)\n\n external override {\n\n\n\n //check the contract has the specified balance\n\n require(_amount <= getBalanceInternal(address(this), _reserve),\n\n \"Invalid balance for the contract\");\n\n\n\n (\n\n uint[6] memory numData,\n\n address[5] memory addrData,\n\n bytes memory callData,\n\n address proxy\n\n )\n\n = abi.decode(_params, (uint256[6],address[5],bytes,address));\n\n\n\n ExchangeData memory exchangeData = ExchangeData({\n\n srcAddr: addrData[0],\n\n destAddr: addrData[1],\n\n srcAmount: numData[2],\n\n destAmount: numData[3],\n\n minPrice: numData[4],\n\n wrapper: addrData[3],\n\n exchangeAddr: addrData[2],\n\n callData: callData,\n\n price0x: numData[5]\n\n });\n\n\n\n openAndLeverage(numData[0], numData[1] + _fee, addrData[4], proxy, exchangeData);\n\n\n\n transferFundsBackToPoolInternal(_reserve, _amount.add(_fee));\n\n\n\n // if there is some eth left (0x fee), return it to user\n\n if (address(this).balance > 0) {\n\n tx.origin.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n function openAndLeverage(\n\n uint _collAmount,\n\n uint _daiAmountAndFee,\n\n address _joinAddr,\n\n address _proxy,\n\n ExchangeData memory _exchangeData\n\n ) public {\n\n\n\n uint dfsFee = getFee(_exchangeData.srcAmount, DSProxy(payable(_proxy)).owner());\n\n\n\n _exchangeData.srcAmount = (_exchangeData.srcAmount - dfsFee);\n\n (, uint256 collSwaped) = _sell(_exchangeData);\n\n\n\n bytes32 ilk = Join(_joinAddr).ilk();\n\n\n\n if (_joinAddr == ETH_JOIN_ADDRESS) {\n\n MCDCreateProxyActions(CREATE_PROXY_ACTIONS).openLockETHAndDraw{value: address(this).balance}(\n\n MANAGER_ADDRESS,\n\n JUG_ADDRESS,\n\n ETH_JOIN_ADDRESS,\n\n DAI_JOIN_ADDRESS,\n\n ilk,\n\n _daiAmountAndFee,\n\n _proxy\n\n );\n\n } else {\n\n ERC20(address(Join(_joinAddr).gem())).safeApprove(CREATE_PROXY_ACTIONS, 0);\n\n ERC20(address(Join(_joinAddr).gem())).safeApprove(CREATE_PROXY_ACTIONS, uint256(-1));\n\n\n\n MCDCreateProxyActions(CREATE_PROXY_ACTIONS).openLockGemAndDraw(\n\n MANAGER_ADDRESS,\n\n JUG_ADDRESS,\n\n _joinAddr,\n\n DAI_JOIN_ADDRESS,\n\n ilk,\n\n (_collAmount + collSwaped),\n\n _daiAmountAndFee,\n\n true,\n\n _proxy\n\n );\n\n }\n\n }\n\n\n\n function getFee(uint _amount, address _owner) internal returns (uint feeAmount) {\n\n uint fee = SERVICE_FEE;\n\n\n\n if (Discount(DISCOUNT_ADDRESS).isCustomFeeSet(_owner)) {\n\n fee = Discount(DISCOUNT_ADDRESS).getCustomServiceFee(_owner);\n\n }\n\n\n\n feeAmount = (fee == 0) ? 0 : (_amount / fee);\n\n\n\n // fee can't go over 20% of the whole amount\n\n if (feeAmount > (_amount / 5)) {\n\n feeAmount = _amount / 5;\n\n }\n\n\n\n ERC20(DAI_ADDRESS).transfer(WALLET_ID, feeAmount);\n\n }\n\n\n\n receive() external override(FlashLoanReceiverBase, SaverExchangeCore) payable {}\n\n}\n\ncontract MCDSaverProxy is SaverExchangeCore, MCDSaverProxyHelper {\n\n\n\n uint public constant MANUAL_SERVICE_FEE = 400; // 0.25% Fee\n\n uint public constant AUTOMATIC_SERVICE_FEE = 333; // 0.3% Fee\n\n\n\n bytes32 public constant ETH_ILK = 0x4554482d41000000000000000000000000000000000000000000000000000000;\n\n\n\n address public constant MANAGER_ADDRESS = 0x5ef30b9986345249bc32d8928B7ee64DE9435E39;\n\n address public constant VAT_ADDRESS = 0x35D1b3F3D7966A1DFe207aa4514C12a259A0492B;\n\n address public constant SPOTTER_ADDRESS = 0x65C79fcB50Ca1594B025960e539eD7A9a6D434A3;\n\n address public constant DAI_JOIN_ADDRESS = 0x9759A6Ac90977b93B58547b4A71c78317f391A28;\n\n address public constant JUG_ADDRESS = 0x19c0976f590D67707E62397C87829d896Dc0f1F1;\n\n address public constant ETH_JOIN_ADDRESS = 0x2F0b23f53734252Bda2277357e97e1517d6B042A;\n\n address public constant DAI_ADDRESS = 0x6B175474E89094C44Da98b954EedeAC495271d0F;\n\n\n\n address public constant BOT_REGISTRY_ADDRESS = 0x637726f8b08a7ABE3aE3aCaB01A80E2d8ddeF77B;\n\n\n\n Manager public constant manager = Manager(MANAGER_ADDRESS);\n\n Vat public constant vat = Vat(VAT_ADDRESS);\n\n DaiJoin public constant daiJoin = DaiJoin(DAI_JOIN_ADDRESS);\n\n Spotter public constant spotter = Spotter(SPOTTER_ADDRESS);\n\n\n\n DefisaverLogger public constant logger = DefisaverLogger(0x5c55B921f590a89C1Ebe84dF170E655a82b62126);\n\n\n\n /// @notice Repay - draws collateral, converts to Dai and repays the debt\n\n /// @dev Must be called by the DSProxy contract that owns the CDP\n\n function repay(\n\n SaverExchangeCore.ExchangeData memory _exchangeData,\n\n uint _cdpId,\n\n uint _gasCost,\n\n address _joinAddr\n\n ) public payable {\n\n\n\n address owner = getOwner(manager, _cdpId);\n\n bytes32 ilk = manager.ilks(_cdpId);\n\n\n\n drawCollateral(_cdpId, _joinAddr, _exchangeData.srcAmount);\n\n\n\n (, uint daiAmount) = _sell(_exchangeData);\n\n\n\n uint daiAfterFee = sub(daiAmount, getFee(daiAmount, _gasCost, owner));\n\n\n\n paybackDebt(_cdpId, ilk, daiAfterFee, owner);\n\n\n\n // if there is some eth left (0x fee), return it to user\n\n if (address(this).balance > 0) {\n\n tx.origin.transfer(address(this).balance);\n\n }\n\n\n\n logger.Log(address(this), msg.sender, \"MCDRepay\", abi.encode(_cdpId, owner, _exchangeData.srcAmount, daiAmount));\n\n\n\n }\n\n\n\n /// @notice Boost - draws Dai, converts to collateral and adds to CDP\n\n /// @dev Must be called by the DSProxy contract that owns the CDP\n\n function boost(\n\n SaverExchangeCore.ExchangeData memory _exchangeData,\n\n uint _cdpId,\n\n uint _gasCost,\n\n address _joinAddr\n\n ) public payable {\n\n address owner = getOwner(manager, _cdpId);\n\n bytes32 ilk = manager.ilks(_cdpId);\n\n\n\n uint daiDrawn = drawDai(_cdpId, ilk, _exchangeData.srcAmount);\n\n uint daiAfterFee = sub(daiDrawn, getFee(daiDrawn, _gasCost, owner));\n\n\n\n _exchangeData.srcAmount = daiAfterFee;\n\n (, uint swapedColl) = _sell(_exchangeData);\n\n\n\n addCollateral(_cdpId, _joinAddr, swapedColl);\n\n\n\n // if there is some eth left (0x fee), return it to user\n\n if (address(this).balance > 0) {\n\n tx.origin.transfer(address(this).balance);\n\n }\n\n\n\n logger.Log(address(this), msg.sender, \"MCDBoost\", abi.encode(_cdpId, owner, _exchangeData.srcAmount, swapedColl));\n\n }\n\n\n\n /// @notice Draws Dai from the CDP\n\n /// @dev If _daiAmount is bigger than max available we'll draw max\n\n /// @param _cdpId Id of the CDP\n\n /// @param _ilk Ilk of the CDP\n\n /// @param _daiAmount Amount of Dai to draw\n\n function drawDai(uint _cdpId, bytes32 _ilk, uint _daiAmount) internal returns (uint) {\n\n uint rate = Jug(JUG_ADDRESS).drip(_ilk);\n\n uint daiVatBalance = vat.dai(manager.urns(_cdpId));\n\n\n\n uint maxAmount = getMaxDebt(_cdpId, _ilk);\n\n\n\n if (_daiAmount >= maxAmount) {\n\n _daiAmount = sub(maxAmount, 1);\n\n }\n\n\n\n manager.frob(_cdpId, int(0), normalizeDrawAmount(_daiAmount, rate, daiVatBalance));\n\n manager.move(_cdpId, address(this), toRad(_daiAmount));\n\n\n\n if (vat.can(address(this), address(DAI_JOIN_ADDRESS)) == 0) {\n\n vat.hope(DAI_JOIN_ADDRESS);\n\n }\n\n\n\n DaiJoin(DAI_JOIN_ADDRESS).exit(address(this), _daiAmount);\n\n\n\n return _daiAmount;\n\n }\n\n\n\n /// @notice Adds collateral to the CDP\n\n /// @param _cdpId Id of the CDP\n\n /// @param _joinAddr Address of the join contract for the CDP collateral\n\n /// @param _amount Amount of collateral to add\n\n function addCollateral(uint _cdpId, address _joinAddr, uint _amount) internal {\n\n int convertAmount = 0;\n\n\n\n if (_joinAddr == ETH_JOIN_ADDRESS) {\n\n Join(_joinAddr).gem().deposit{value: _amount}();\n\n convertAmount = toPositiveInt(_amount);\n\n } else {\n\n convertAmount = toPositiveInt(convertTo18(_joinAddr, _amount));\n\n }\n\n\n\n ERC20(address(Join(_joinAddr).gem())).safeApprove(_joinAddr, 0);\n\n ERC20(address(Join(_joinAddr).gem())).safeApprove(_joinAddr, _amount);\n\n\n\n Join(_joinAddr).join(address(this), _amount);\n\n\n\n vat.frob(\n\n manager.ilks(_cdpId),\n\n manager.urns(_cdpId),\n\n address(this),\n\n address(this),\n\n convertAmount,\n\n 0\n\n );\n\n\n\n }\n\n\n\n /// @notice Draws collateral and returns it to DSProxy\n\n /// @dev If _amount is bigger than max available we'll draw max\n\n /// @param _cdpId Id of the CDP\n\n /// @param _joinAddr Address of the join contract for the CDP collateral\n\n /// @param _amount Amount of collateral to draw\n\n function drawCollateral(uint _cdpId, address _joinAddr, uint _amount) internal returns (uint) {\n\n uint frobAmount = _amount;\n\n\n\n if (Join(_joinAddr).dec() != 18) {\n\n frobAmount = _amount * (10 ** (18 - Join(_joinAddr).dec()));\n\n }\n\n\n\n manager.frob(_cdpId, -toPositiveInt(frobAmount), 0);\n\n manager.flux(_cdpId, address(this), frobAmount);\n\n\n\n Join(_joinAddr).exit(address(this), _amount);\n\n\n\n if (_joinAddr == ETH_JOIN_ADDRESS) {\n\n Join(_joinAddr).gem().withdraw(_amount); // Weth -> Eth\n\n }\n\n\n\n return _amount;\n\n }\n\n\n\n /// @notice Paybacks Dai debt\n\n /// @dev If the _daiAmount is bigger than the whole debt, returns extra Dai\n\n /// @param _cdpId Id of the CDP\n\n /// @param _ilk Ilk of the CDP\n\n /// @param _daiAmount Amount of Dai to payback\n\n /// @param _owner Address that owns the DSProxy that owns the CDP\n\n function paybackDebt(uint _cdpId, bytes32 _ilk, uint _daiAmount, address _owner) internal {\n\n address urn = manager.urns(_cdpId);\n\n\n\n uint wholeDebt = getAllDebt(VAT_ADDRESS, urn, urn, _ilk);\n\n\n\n if (_daiAmount > wholeDebt) {\n\n ERC20(DAI_ADDRESS).transfer(_owner, sub(_daiAmount, wholeDebt));\n\n _daiAmount = wholeDebt;\n\n }\n\n\n\n if (ERC20(DAI_ADDRESS).allowance(address(this), DAI_JOIN_ADDRESS) == 0) {\n\n ERC20(DAI_ADDRESS).approve(DAI_JOIN_ADDRESS, uint(-1));\n\n }\n\n\n\n daiJoin.join(urn, _daiAmount);\n\n\n\n manager.frob(_cdpId, 0, normalizePaybackAmount(VAT_ADDRESS, urn, _ilk));\n\n }\n\n\n\n /// @notice Calculates the fee amount\n\n /// @param _amount Dai amount that is converted\n\n /// @param _gasCost Used for Monitor, estimated gas cost of tx\n\n /// @param _owner The address that controlls the DSProxy that owns the CDP\n\n function getFee(uint _amount, uint _gasCost, address _owner) internal returns (uint feeAmount) {\n\n uint fee = MANUAL_SERVICE_FEE;\n\n\n\n if (BotRegistry(BOT_REGISTRY_ADDRESS).botList(tx.origin)) {\n\n fee = AUTOMATIC_SERVICE_FEE;\n\n }\n\n\n\n if (Discount(DISCOUNT_ADDRESS).isCustomFeeSet(_owner)) {\n\n fee = Discount(DISCOUNT_ADDRESS).getCustomServiceFee(_owner);\n\n }\n\n\n\n feeAmount = (fee == 0) ? 0 : (_amount / fee);\n\n\n\n if (_gasCost != 0) {\n\n uint ethDaiPrice = getPrice(ETH_ILK);\n\n _gasCost = rmul(_gasCost, ethDaiPrice);\n\n\n\n feeAmount = add(feeAmount, _gasCost);\n\n }\n\n\n\n // fee can't go over 20% of the whole amount\n\n if (feeAmount > (_amount / 5)) {\n\n feeAmount = _amount / 5;\n\n }\n\n\n\n ERC20(DAI_ADDRESS).transfer(WALLET_ID, feeAmount);\n\n }\n\n\n\n /// @notice Gets the maximum amount of collateral available to draw\n\n /// @param _cdpId Id of the CDP\n\n /// @param _ilk Ilk of the CDP\n\n /// @param _joinAddr Joind address of collateral\n\n /// @dev Substracts 10 wei to aviod rounding error later on\n\n function getMaxCollateral(uint _cdpId, bytes32 _ilk, address _joinAddr) public view returns (uint) {\n\n uint price = getPrice(_ilk);\n\n\n\n (uint collateral, uint debt) = getCdpInfo(manager, _cdpId, _ilk);\n\n\n\n (, uint mat) = Spotter(SPOTTER_ADDRESS).ilks(_ilk);\n\n\n\n uint maxCollateral = sub(sub(collateral, (div(mul(mat, debt), price))), 10);\n\n\n\n uint normalizeMaxCollateral = maxCollateral;\n\n\n\n if (Join(_joinAddr).dec() != 18) {\n\n normalizeMaxCollateral = maxCollateral / (10 ** (18 - Join(_joinAddr).dec()));\n\n }\n\n\n\n return normalizeMaxCollateral;\n\n }\n\n\n\n /// @notice Gets the maximum amount of debt available to generate\n\n /// @param _cdpId Id of the CDP\n\n /// @param _ilk Ilk of the CDP\n\n /// @dev Substracts 10 wei to aviod rounding error later on\n\n function getMaxDebt(uint _cdpId, bytes32 _ilk) public virtual view returns (uint) {\n\n uint price = getPrice(_ilk);\n\n\n\n (, uint mat) = spotter.ilks(_ilk);\n\n (uint collateral, uint debt) = getCdpInfo(manager, _cdpId, _ilk);\n\n\n\n return sub(sub(div(mul(collateral, price), mat), debt), 10);\n\n }\n\n\n\n /// @notice Gets a price of the asset\n\n /// @param _ilk Ilk of the CDP\n\n function getPrice(bytes32 _ilk) public view returns (uint) {\n\n (, uint mat) = spotter.ilks(_ilk);\n\n (,,uint spot,,) = vat.ilks(_ilk);\n\n\n\n return rmul(rmul(spot, spotter.par()), mat);\n\n }\n\n\n\n /// @notice Gets CDP ratio\n\n /// @param _cdpId Id of the CDP\n\n /// @param _ilk Ilk of the CDP\n\n function getRatio(uint _cdpId, bytes32 _ilk) public view returns (uint) {\n\n uint price = getPrice( _ilk);\n\n\n\n (uint collateral, uint debt) = getCdpInfo(manager, _cdpId, _ilk);\n\n\n\n if (debt == 0) return 0;\n\n\n\n return rdiv(wmul(collateral, price), debt);\n\n }\n\n\n\n /// @notice Gets CDP info (collateral, debt, price, ilk)\n\n /// @param _cdpId Id of the CDP\n\n function getCdpDetailedInfo(uint _cdpId) public view returns (uint collateral, uint debt, uint price, bytes32 ilk) {\n\n address urn = manager.urns(_cdpId);\n\n ilk = manager.ilks(_cdpId);\n\n\n\n (collateral, debt) = vat.urns(ilk, urn);\n\n (,uint rate,,,) = vat.ilks(ilk);\n\n\n\n debt = rmul(debt, rate);\n\n price = getPrice(ilk);\n\n }\n\n\n\n}\n\ncontract MCDSaverTaker is MCDSaverProxy, GasBurner {\n\n\n\n address payable public constant MCD_SAVER_FLASH_LOAN = 0x28e444b53a9e7E3F6fFe50E93b18dCce7838551F;\n\n address public constant AAVE_POOL_CORE = 0x3dfd23A6c5E8BbcFc9581d2E864a68feb6a076d3;\n\n\n\n ILendingPool public constant lendingPool = ILendingPool(0x398eC7346DcD622eDc5ae82352F02bE94C62d119);\n\n\n\n function boostWithLoan(\n\n SaverExchangeCore.ExchangeData memory _exchangeData,\n\n uint _cdpId,\n\n uint _gasCost,\n\n address _joinAddr\n\n ) public payable burnGas(25) {\n\n uint256 maxDebt = getMaxDebt(_cdpId, manager.ilks(_cdpId));\n\n\n\n if (maxDebt >= _exchangeData.srcAmount) {\n\n boost(_exchangeData, _cdpId, _gasCost, _joinAddr);\n\n return;\n\n }\n\n\n\n MCD_SAVER_FLASH_LOAN.transfer(msg.value); // 0x fee\n\n\n\n uint256 loanAmount = sub(_exchangeData.srcAmount, maxDebt);\n\n uint maxLiq = getAvailableLiquidity(_joinAddr);\n\n\n\n loanAmount = loanAmount > maxLiq ? maxLiq : loanAmount;\n\n\n\n manager.cdpAllow(_cdpId, MCD_SAVER_FLASH_LOAN, 1);\n\n\n\n bytes memory paramsData = abi.encode(packExchangeData(_exchangeData), _cdpId, _gasCost, _joinAddr, false);\n\n\n\n lendingPool.flashLoan(MCD_SAVER_FLASH_LOAN, DAI_ADDRESS, loanAmount, paramsData);\n\n\n\n manager.cdpAllow(_cdpId, MCD_SAVER_FLASH_LOAN, 0);\n\n }\n\n\n\n function repayWithLoan(\n\n SaverExchangeCore.ExchangeData memory _exchangeData,\n\n uint _cdpId,\n\n uint _gasCost,\n\n address _joinAddr\n\n ) public payable burnGas(25) {\n\n uint256 maxColl = getMaxCollateral(_cdpId, manager.ilks(_cdpId), _joinAddr);\n\n\n\n if (maxColl >= _exchangeData.srcAmount) {\n\n repay(_exchangeData, _cdpId, _gasCost, _joinAddr);\n\n return;\n\n }\n\n\n\n MCD_SAVER_FLASH_LOAN.transfer(msg.value); // 0x fee\n\n\n\n uint256 loanAmount = sub(_exchangeData.srcAmount, maxColl);\n\n uint maxLiq = getAvailableLiquidity(_joinAddr);\n\n\n\n loanAmount = loanAmount > maxLiq ? maxLiq : loanAmount;\n\n\n\n manager.cdpAllow(_cdpId, MCD_SAVER_FLASH_LOAN, 1);\n\n\n\n bytes memory paramsData = abi.encode(packExchangeData(_exchangeData), _cdpId, _gasCost, _joinAddr, true);\n\n\n\n lendingPool.flashLoan(MCD_SAVER_FLASH_LOAN, getAaveCollAddr(_joinAddr), loanAmount, paramsData);\n\n\n\n manager.cdpAllow(_cdpId, MCD_SAVER_FLASH_LOAN, 0);\n\n }\n\n\n\n\n\n /// @notice Gets the maximum amount of debt available to generate\n\n /// @param _cdpId Id of the CDP\n\n /// @param _ilk Ilk of the CDP\n\n function getMaxDebt(uint256 _cdpId, bytes32 _ilk) public override view returns (uint256) {\n\n uint256 price = getPrice(_ilk);\n\n\n\n (, uint256 mat) = spotter.ilks(_ilk);\n\n (uint256 collateral, uint256 debt) = getCdpInfo(manager, _cdpId, _ilk);\n\n\n\n return sub(wdiv(wmul(collateral, price), mat), debt);\n\n }\n\n\n\n function getAaveCollAddr(address _joinAddr) internal view returns (address) {\n\n if (_joinAddr == 0x2F0b23f53734252Bda2277357e97e1517d6B042A\n\n || _joinAddr == 0x775787933e92b709f2a3C70aa87999696e74A9F8) {\n\n return KYBER_ETH_ADDRESS;\n\n } else {\n\n return getCollateralAddr(_joinAddr);\n\n }\n\n }\n\n\n\n function getAvailableLiquidity(address _joinAddr) internal view returns (uint liquidity) {\n\n address tokenAddr = getAaveCollAddr(_joinAddr);\n\n\n\n if (tokenAddr == KYBER_ETH_ADDRESS) {\n\n liquidity = AAVE_POOL_CORE.balance;\n\n } else {\n\n liquidity = ERC20(tokenAddr).balanceOf(AAVE_POOL_CORE);\n\n }\n\n }\n\n\n\n function _packData(\n\n uint _cdpId,\n\n uint _gasCost,\n\n address _joinAddr,\n\n SaverExchangeCore.ExchangeData memory exchangeData\n\n ) internal pure returns (uint[6] memory numData, address[5] memory addrData, bytes memory callData) {\n\n\n\n numData = [\n\n exchangeData.srcAmount,\n\n exchangeData.destAmount,\n\n exchangeData.minPrice,\n\n exchangeData.price0x,\n\n _cdpId,\n\n _gasCost\n\n ];\n\n\n\n addrData = [\n\n exchangeData.srcAddr,\n\n exchangeData.destAddr,\n\n exchangeData.exchangeAddr,\n\n exchangeData.wrapper,\n\n _joinAddr\n\n ];\n\n\n\n callData = exchangeData.callData;\n\n }\n\n\n\n}\n\ncontract SavingsProxy is DSRSavingsProtocol, CompoundSavingsProtocol {\n\n address public constant ADAI_ADDRESS = 0xfC1E690f61EFd961294b3e1Ce3313fBD8aa4f85d;\n\n\n\n address public constant SAVINGS_DYDX_ADDRESS = 0x03b1565e070df392e48e7a8e01798C4B00E534A5;\n\n address public constant SAVINGS_AAVE_ADDRESS = 0x535B9035E9bA8D7efe0FeAEac885fb65b303E37C;\n\n address public constant NEW_IDAI_ADDRESS = 0x493C57C4763932315A328269E1ADaD09653B9081;\n\n\n\n address public constant COMP_ADDRESS = 0x3d9819210A31b4961b30EF54bE2aeD79B9c9Cd3B;\n\n\n\n address public constant SAVINGS_LOGGER_ADDRESS = 0x89b3635BD2bAD145C6f92E82C9e83f06D5654984;\n\n address public constant SOLO_MARGIN_ADDRESS = 0x1E0447b19BB6EcFdAe1e4AE1694b0C3659614e4e;\n\n\n\n enum SavingsProtocol {Compound, Dydx, Fulcrum, Dsr, Aave}\n\n\n\n function deposit(SavingsProtocol _protocol, uint256 _amount) public {\n\n if (_protocol == SavingsProtocol.Dsr) {\n\n dsrDeposit(_amount, true);\n\n } else if (_protocol == SavingsProtocol.Compound) {\n\n compDeposit(msg.sender, _amount);\n\n } else {\n\n _deposit(_protocol, _amount, true);\n\n }\n\n\n\n SavingsLogger(SAVINGS_LOGGER_ADDRESS).logDeposit(msg.sender, uint8(_protocol), _amount);\n\n }\n\n\n\n function withdraw(SavingsProtocol _protocol, uint256 _amount) public {\n\n if (_protocol == SavingsProtocol.Dsr) {\n\n dsrWithdraw(_amount, true);\n\n } else if (_protocol == SavingsProtocol.Compound) {\n\n compWithdraw(msg.sender, _amount);\n\n } else {\n\n _withdraw(_protocol, _amount, true);\n\n }\n\n\n\n SavingsLogger(SAVINGS_LOGGER_ADDRESS).logWithdraw(msg.sender, uint8(_protocol), _amount);\n\n }\n\n\n\n function swap(SavingsProtocol _from, SavingsProtocol _to, uint256 _amount) public {\n\n if (_from == SavingsProtocol.Dsr) {\n\n dsrWithdraw(_amount, false);\n\n } else if (_from == SavingsProtocol.Compound) {\n\n compWithdraw(msg.sender, _amount);\n\n } else {\n\n _withdraw(_from, _amount, false);\n\n }\n\n\n\n // possible to withdraw 1-2 wei less than actual amount due to division precision\n\n // so we deposit all amount on DSProxy\n\n uint256 amountToDeposit = ERC20(DAI_ADDRESS).balanceOf(address(this));\n\n\n\n if (_to == SavingsProtocol.Dsr) {\n\n dsrDeposit(amountToDeposit, false);\n\n } else if (_from == SavingsProtocol.Compound) {\n\n compDeposit(msg.sender, _amount);\n\n } else {\n\n _deposit(_to, amountToDeposit, false);\n\n }\n\n\n\n SavingsLogger(SAVINGS_LOGGER_ADDRESS).logSwap(\n\n msg.sender,\n\n uint8(_from),\n\n uint8(_to),\n\n _amount\n\n );\n\n }\n\n\n\n function withdrawDai() public {\n\n ERC20(DAI_ADDRESS).transfer(msg.sender, ERC20(DAI_ADDRESS).balanceOf(address(this)));\n\n }\n\n\n\n function claimComp() public {\n\n ComptrollerInterface(COMP_ADDRESS).claimComp(address(this));\n\n }\n\n\n\n function getAddress(SavingsProtocol _protocol) public pure returns (address) {\n\n\n\n if (_protocol == SavingsProtocol.Dydx) {\n\n return SAVINGS_DYDX_ADDRESS;\n\n }\n\n\n\n if (_protocol == SavingsProtocol.Aave) {\n\n return SAVINGS_AAVE_ADDRESS;\n\n }\n\n }\n\n\n\n function _deposit(SavingsProtocol _protocol, uint256 _amount, bool _fromUser) internal {\n\n if (_fromUser) {\n\n ERC20(DAI_ADDRESS).transferFrom(msg.sender, address(this), _amount);\n\n }\n\n\n\n approveDeposit(_protocol);\n\n\n\n ProtocolInterface(getAddress(_protocol)).deposit(address(this), _amount);\n\n\n\n endAction(_protocol);\n\n }\n\n\n\n function _withdraw(SavingsProtocol _protocol, uint256 _amount, bool _toUser) public {\n\n approveWithdraw(_protocol);\n\n\n\n ProtocolInterface(getAddress(_protocol)).withdraw(address(this), _amount);\n\n\n\n endAction(_protocol);\n\n\n\n if (_toUser) {\n\n withdrawDai();\n\n }\n\n }\n\n\n\n function endAction(SavingsProtocol _protocol) internal {\n\n if (_protocol == SavingsProtocol.Dydx) {\n\n setDydxOperator(false);\n\n }\n\n }\n\n\n\n function approveDeposit(SavingsProtocol _protocol) internal {\n\n if (_protocol == SavingsProtocol.Compound || _protocol == SavingsProtocol.Fulcrum || _protocol == SavingsProtocol.Aave) {\n\n ERC20(DAI_ADDRESS).approve(getAddress(_protocol), uint256(-1));\n\n }\n\n\n\n if (_protocol == SavingsProtocol.Dydx) {\n\n ERC20(DAI_ADDRESS).approve(SOLO_MARGIN_ADDRESS, uint256(-1));\n\n setDydxOperator(true);\n\n }\n\n }\n\n\n\n function approveWithdraw(SavingsProtocol _protocol) internal {\n\n if (_protocol == SavingsProtocol.Compound) {\n\n ERC20(NEW_CDAI_ADDRESS).approve(getAddress(_protocol), uint256(-1));\n\n }\n\n\n\n if (_protocol == SavingsProtocol.Dydx) {\n\n setDydxOperator(true);\n\n }\n\n\n\n if (_protocol == SavingsProtocol.Fulcrum) {\n\n ERC20(NEW_IDAI_ADDRESS).approve(getAddress(_protocol), uint256(-1));\n\n }\n\n\n\n if (_protocol == SavingsProtocol.Aave) {\n\n ERC20(ADAI_ADDRESS).approve(getAddress(_protocol), uint256(-1));\n\n }\n\n }\n\n\n\n function setDydxOperator(bool _trusted) internal {\n\n ISoloMargin.OperatorArg[] memory operatorArgs = new ISoloMargin.OperatorArg[](1);\n\n operatorArgs[0] = ISoloMargin.OperatorArg({\n\n operator: getAddress(SavingsProtocol.Dydx),\n\n trusted: _trusted\n\n });\n\n\n\n ISoloMargin(SOLO_MARGIN_ADDRESS).setOperators(operatorArgs);\n\n }\n\n}\n\ncontract LoanShifterReceiver is SaverExchangeCore, FlashLoanReceiverBase, AdminAuth {\n\n\n\n ILendingPoolAddressesProvider public LENDING_POOL_ADDRESS_PROVIDER = ILendingPoolAddressesProvider(0x24a42fD28C976A61Df5D00D0599C34c4f90748c8);\n\n address public constant ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n\n\n ShifterRegistry public constant shifterRegistry = ShifterRegistry(0x2612Af3A521c2df9EAF28422Ca335b04AdF3ac66);\n\n\n\n struct ParamData {\n\n bytes proxyData1;\n\n bytes proxyData2;\n\n address proxy;\n\n address debtAddr;\n\n uint8 protocol1;\n\n uint8 protocol2;\n\n uint8 swapType;\n\n }\n\n\n\n constructor() FlashLoanReceiverBase(LENDING_POOL_ADDRESS_PROVIDER) public {}\n\n\n\n function executeOperation(\n\n address _reserve,\n\n uint256 _amount,\n\n uint256 _fee,\n\n bytes calldata _params)\n\n external override {\n\n // Format the call data for DSProxy\n\n (ParamData memory paramData, ExchangeData memory exchangeData)\n\n = packFunctionCall(_amount, _fee, _params);\n\n\n\n address protocolAddr1 = shifterRegistry.getAddr(getNameByProtocol(paramData.protocol1));\n\n address protocolAddr2 = shifterRegistry.getAddr(getNameByProtocol(paramData.protocol2));\n\n\n\n // Send Flash loan amount to DSProxy\n\n sendToProxy(payable(paramData.proxy), _reserve, _amount);\n\n\n\n // Execute the Close/Change debt operation\n\n DSProxyInterface(paramData.proxy).execute(protocolAddr1, paramData.proxyData1);\n\n\n\n if (paramData.swapType == 1) { // COLL_SWAP\n\n exchangeData.srcAmount = getBalance(exchangeData.srcAddr);\n\n (, uint amount) = _sell(exchangeData);\n\n\n\n sendToProxy(payable(paramData.proxy), exchangeData.destAddr, amount);\n\n } else if (paramData.swapType == 2) { // DEBT_SWAP\n\n exchangeData.destAmount = (_amount + _fee);\n\n _buy(exchangeData);\n\n\n\n // Send extra to DSProxy\n\n sendToProxy(payable(paramData.proxy), exchangeData.srcAddr, ERC20(exchangeData.srcAddr).balanceOf(address(this)));\n\n\n\n } else { // NO_SWAP just send tokens to proxy\n\n sendToProxy(payable(paramData.proxy), exchangeData.srcAddr, getBalance(exchangeData.srcAddr));\n\n }\n\n\n\n // Execute the Open operation\n\n DSProxyInterface(paramData.proxy).execute(protocolAddr2, paramData.proxyData2);\n\n\n\n // Repay FL\n\n transferFundsBackToPoolInternal(_reserve, _amount.add(_fee));\n\n\n\n // if there is some eth left (0x fee), return it to user\n\n if (address(this).balance > 0) {\n\n tx.origin.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n function packFunctionCall(uint _amount, uint _fee, bytes memory _params)\n\n internal pure returns (ParamData memory paramData, ExchangeData memory exchangeData) {\n\n\n\n (\n\n uint[8] memory numData, // collAmount, debtAmount, id1, id2, srcAmount, destAmount, minPrice, price0x\n\n address[8] memory addrData, // addrLoan1, addrLoan2, debtAddr1, debtAddr2, srcAddr, destAddr, exchangeAddr, wrapper\n\n uint8[3] memory enumData, // fromProtocol, toProtocol, swapType\n\n bytes memory callData,\n\n address proxy\n\n )\n\n = abi.decode(_params, (uint256[8],address[8],uint8[3],bytes,address));\n\n\n\n bytes memory proxyData1;\n\n bytes memory proxyData2;\n\n uint openDebtAmount = (_amount + _fee);\n\n\n\n if (enumData[0] == 0) { // MAKER FROM\n\n proxyData1 = abi.encodeWithSignature(\"close(uint256,address,uint256,uint256)\", numData[2], addrData[0], _amount, numData[0]);\n\n\n\n } else if(enumData[0] == 1) { // COMPOUND FROM\n\n if (enumData[2] == 2) { // DEBT_SWAP\n\n proxyData1 = abi.encodeWithSignature(\"changeDebt(address,address,uint256,uint256)\", addrData[2], addrData[3], (_amount + _fee), numData[4]);\n\n } else {\n\n proxyData1 = abi.encodeWithSignature(\"close(address,address,uint256,uint256)\", addrData[0], addrData[2], numData[0], numData[1]);\n\n }\n\n }\n\n\n\n if (enumData[1] == 0) { // MAKER TO\n\n proxyData2 = abi.encodeWithSignature(\"open(uint256,address,uint256)\", numData[3], addrData[1], openDebtAmount);\n\n } else if(enumData[1] == 1) { // COMPOUND TO\n\n if (enumData[2] == 2) { // DEBT_SWAP\n\n proxyData2 = abi.encodeWithSignature(\"repayAll(address)\", addrData[3]);\n\n } else {\n\n proxyData2 = abi.encodeWithSignature(\"open(address,address,uint256)\", addrData[1], addrData[3], openDebtAmount);\n\n }\n\n }\n\n\n\n\n\n paramData = ParamData({\n\n proxyData1: proxyData1,\n\n proxyData2: proxyData2,\n\n proxy: proxy,\n\n debtAddr: addrData[2],\n\n protocol1: enumData[0],\n\n protocol2: enumData[1],\n\n swapType: enumData[2]\n\n });\n\n\n\n exchangeData = SaverExchangeCore.ExchangeData({\n\n srcAddr: addrData[4],\n\n destAddr: addrData[5],\n\n srcAmount: numData[4],\n\n destAmount: numData[5],\n\n minPrice: numData[6],\n\n wrapper: addrData[7],\n\n exchangeAddr: addrData[6],\n\n callData: callData,\n\n price0x: numData[7]\n\n });\n\n\n\n }\n\n\n\n function sendToProxy(address payable _proxy, address _reserve, uint _amount) internal {\n\n if (_reserve != ETH_ADDRESS) {\n\n ERC20(_reserve).safeTransfer(_proxy, _amount);\n\n }\n\n\n\n _proxy.transfer(address(this).balance);\n\n }\n\n\n\n function getNameByProtocol(uint8 _proto) internal pure returns (string memory) {\n\n if (_proto == 0) {\n\n return \"MCD_SHIFTER\";\n\n } else if (_proto == 1) {\n\n return \"COMP_SHIFTER\";\n\n }\n\n }\n\n\n\n receive() external override(FlashLoanReceiverBase, SaverExchangeCore) payable {}\n\n}\n\ncontract CompShifter is CompoundSaverHelper {\n\n\n\n address public constant COMPTROLLER_ADDR = 0x3d9819210A31b4961b30EF54bE2aeD79B9c9Cd3B;\n\n\n\n function getWholeDebt(uint _cdpId, address _joinAddr) public virtual returns(uint loanAmount) {\n\n return CTokenInterface(_joinAddr).borrowBalanceCurrent(msg.sender);\n\n }\n\n\n\n function close(\n\n address _cCollAddr,\n\n address _cBorrowAddr,\n\n uint _collAmount,\n\n uint _debtAmount\n\n ) public {\n\n address collAddr = getUnderlyingAddr(_cCollAddr);\n\n\n\n // payback debt\n\n paybackDebt(_debtAmount, _cBorrowAddr, getUnderlyingAddr(_cBorrowAddr), tx.origin);\n\n\n\n // draw coll\n\n if (CTokenInterface(_cBorrowAddr).borrowBalanceCurrent(address(this)) == 0) {\n\n uint cTokenBalance = CTokenInterface(_cCollAddr).balanceOf(address(this));\n\n require(CTokenInterface(_cCollAddr).redeem(cTokenBalance) == 0);\n\n } else {\n\n require(CTokenInterface(_cCollAddr).redeemUnderlying(_collAmount) == 0);\n\n }\n\n\n\n // Send back money to repay FL\n\n if (collAddr == ETH_ADDRESS) {\n\n msg.sender.transfer(address(this).balance);\n\n } else {\n\n ERC20(collAddr).transfer(msg.sender, ERC20(collAddr).balanceOf(address(this)));\n\n }\n\n }\n\n\n\n function changeDebt(\n\n address _cBorrowAddrOld,\n\n address _cBorrowAddrNew,\n\n uint _debtAmountOld,\n\n uint _debtAmountNew\n\n ) public {\n\n\n\n address borrowAddrNew = getUnderlyingAddr(_cBorrowAddrNew);\n\n\n\n // payback debt in one token\n\n paybackDebt(_debtAmountOld, _cBorrowAddrOld, getUnderlyingAddr(_cBorrowAddrOld), tx.origin);\n\n\n\n // draw debt in another one\n\n borrowCompound(_cBorrowAddrNew, _debtAmountNew);\n\n\n\n // Send back money to repay FL\n\n if (borrowAddrNew == ETH_ADDRESS) {\n\n msg.sender.transfer(address(this).balance);\n\n } else {\n\n ERC20(borrowAddrNew).transfer(msg.sender, ERC20(borrowAddrNew).balanceOf(address(this)));\n\n }\n\n }\n\n\n\n function open(\n\n address _cCollAddr,\n\n address _cBorrowAddr,\n\n uint _debtAmount\n\n ) public {\n\n\n\n address collAddr = getUnderlyingAddr(_cCollAddr);\n\n address borrowAddr = getUnderlyingAddr(_cBorrowAddr);\n\n\n\n uint collAmount = 0;\n\n\n\n if (collAddr == ETH_ADDRESS) {\n\n collAmount = address(this).balance;\n\n } else {\n\n collAmount = ERC20(collAddr).balanceOf(address(this));\n\n }\n\n\n\n depositCompound(collAddr, _cCollAddr, collAmount);\n\n\n\n // draw debt\n\n borrowCompound(_cBorrowAddr, _debtAmount);\n\n\n\n // Send back money to repay FL\n\n if (borrowAddr == ETH_ADDRESS) {\n\n msg.sender.transfer(address(this).balance);\n\n } else {\n\n ERC20(borrowAddr).transfer(msg.sender, ERC20(borrowAddr).balanceOf(address(this)));\n\n }\n\n\n\n }\n\n\n\n function repayAll(address _cTokenAddr) public {\n\n address tokenAddr = getUnderlyingAddr(_cTokenAddr);\n\n uint amount = ERC20(tokenAddr).balanceOf(address(this));\n\n\n\n if (amount != 0) {\n\n paybackDebt(amount, _cTokenAddr, tokenAddr, tx.origin);\n\n }\n\n }\n\n\n\n function depositCompound(address _tokenAddr, address _cTokenAddr, uint _amount) internal {\n\n approveCToken(_tokenAddr, _cTokenAddr);\n\n\n\n enterMarket(_cTokenAddr);\n\n\n\n if (_tokenAddr != ETH_ADDRESS) {\n\n require(CTokenInterface(_cTokenAddr).mint(_amount) == 0, \"mint error\");\n\n } else {\n\n CEtherInterface(_cTokenAddr).mint{value: _amount}();\n\n }\n\n }\n\n\n\n function borrowCompound(address _cTokenAddr, uint _amount) internal {\n\n enterMarket(_cTokenAddr);\n\n\n\n require(CTokenInterface(_cTokenAddr).borrow(_amount) == 0);\n\n }\n\n\n\n function enterMarket(address _cTokenAddr) public {\n\n address[] memory markets = new address[](1);\n\n markets[0] = _cTokenAddr;\n\n\n\n ComptrollerInterface(COMPTROLLER_ADDR).enterMarkets(markets);\n\n }\n\n\n\n}\n\ncontract McdShifter is MCDSaverProxy {\n\n\n\n address public constant OPEN_PROXY_ACTIONS = 0x6d0984E80a86f26c0dd564ca0CF74a8E9Da03305;\n\n\n\n function getLoanAmount(uint _cdpId, address _joinAddr) public view virtual returns(uint loanAmount) {\n\n bytes32 ilk = manager.ilks(_cdpId);\n\n\n\n (, uint rate,,,) = vat.ilks(ilk);\n\n (, uint art) = vat.urns(ilk, manager.urns(_cdpId));\n\n uint dai = vat.dai(manager.urns(_cdpId));\n\n\n\n uint rad = sub(mul(art, rate), dai);\n\n loanAmount = rad / RAY;\n\n\n\n loanAmount = mul(loanAmount, RAY) < rad ? loanAmount + 1 : loanAmount;\n\n }\n\n\n\n function close(\n\n uint _cdpId,\n\n address _joinAddr,\n\n uint _loanAmount,\n\n uint _collateral\n\n ) public {\n\n address owner = getOwner(manager, _cdpId);\n\n bytes32 ilk = manager.ilks(_cdpId);\n\n (uint maxColl, ) = getCdpInfo(manager, _cdpId, ilk);\n\n\n\n // repay dai debt cdp\n\n paybackDebt(_cdpId, ilk, _loanAmount, owner);\n\n\n\n maxColl = _collateral > maxColl ? maxColl : _collateral;\n\n\n\n // withdraw collateral from cdp\n\n drawMaxCollateral(_cdpId, _joinAddr, maxColl);\n\n\n\n // send back to msg.sender\n\n if (_joinAddr == ETH_JOIN_ADDRESS) {\n\n msg.sender.transfer(address(this).balance);\n\n } else {\n\n ERC20 collToken = ERC20(getCollateralAddr(_joinAddr));\n\n collToken.transfer(msg.sender, collToken.balanceOf(address(this)));\n\n }\n\n }\n\n\n\n function open(\n\n uint _cdpId,\n\n address _joinAddr,\n\n uint _debtAmount\n\n ) public {\n\n\n\n uint collAmount = 0;\n\n\n\n if (_joinAddr == ETH_JOIN_ADDRESS) {\n\n collAmount = address(this).balance;\n\n } else {\n\n collAmount = ERC20(address(Join(_joinAddr).gem())).balanceOf(address(this));\n\n }\n\n\n\n if (_cdpId == 0) {\n\n openAndWithdraw(collAmount, _debtAmount, address(this), _joinAddr);\n\n } else {\n\n // add collateral\n\n addCollateral(_cdpId, _joinAddr, collAmount);\n\n // draw debt\n\n drawDai(_cdpId, manager.ilks(_cdpId), _debtAmount);\n\n }\n\n\n\n // transfer to repay FL\n\n ERC20(DAI_ADDRESS).transfer(msg.sender, ERC20(DAI_ADDRESS).balanceOf(address(this)));\n\n\n\n if (address(this).balance > 0) {\n\n tx.origin.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n function openAndWithdraw(uint _collAmount, uint _debtAmount, address _proxy, address _joinAddrTo) internal {\n\n bytes32 ilk = Join(_joinAddrTo).ilk();\n\n\n\n if (_joinAddrTo == ETH_JOIN_ADDRESS) {\n\n MCDCreateProxyActions(OPEN_PROXY_ACTIONS).openLockETHAndDraw{value: address(this).balance}(\n\n address(manager),\n\n JUG_ADDRESS,\n\n ETH_JOIN_ADDRESS,\n\n DAI_JOIN_ADDRESS,\n\n ilk,\n\n _debtAmount,\n\n _proxy\n\n );\n\n } else {\n\n ERC20(getCollateralAddr(_joinAddrTo)).approve(OPEN_PROXY_ACTIONS, uint256(-1));\n\n\n\n MCDCreateProxyActions(OPEN_PROXY_ACTIONS).openLockGemAndDraw(\n\n address(manager),\n\n JUG_ADDRESS,\n\n _joinAddrTo,\n\n DAI_JOIN_ADDRESS,\n\n ilk,\n\n _collAmount,\n\n _debtAmount,\n\n true,\n\n _proxy\n\n );\n\n }\n\n }\n\n\n\n\n\n function drawMaxCollateral(uint _cdpId, address _joinAddr, uint _amount) internal returns (uint) {\n\n manager.frob(_cdpId, -toPositiveInt(_amount), 0);\n\n manager.flux(_cdpId, address(this), _amount);\n\n\n\n uint joinAmount = _amount;\n\n\n\n if (Join(_joinAddr).dec() != 18) {\n\n joinAmount = _amount / (10 ** (18 - Join(_joinAddr).dec()));\n\n }\n\n\n\n Join(_joinAddr).exit(address(this), joinAmount);\n\n\n\n if (_joinAddr == ETH_JOIN_ADDRESS) {\n\n Join(_joinAddr).gem().withdraw(joinAmount); // Weth -> Eth\n\n }\n\n\n\n return joinAmount;\n\n }\n\n\n\n}\n\ncontract AaveSaverProxy is GasBurner, SaverExchangeCore, AaveHelper {\n\n\n\n\taddress public constant DEFISAVER_LOGGER = 0x5c55B921f590a89C1Ebe84dF170E655a82b62126;\n\n\n\n uint public constant VARIABLE_RATE = 2;\n\n\n\n\tfunction repay(ExchangeData memory _data, uint _gasCost) public payable burnGas(20) {\n\n\n\n\t\taddress lendingPoolCore = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPoolCore();\n\n\t\taddress lendingPool = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n\t\taddress payable user = payable(getUserAddress());\n\n\n\n\t\tuint256 maxCollateral = getMaxCollateral(_data.srcAddr, address(this));\n\n\t\t// don't swap more than maxCollateral\n\n\t\t_data.srcAmount = _data.srcAmount > maxCollateral ? maxCollateral : _data.srcAmount;\n\n\n\n\t\t// redeem collateral\n\n\t\taddress aTokenCollateral = ILendingPool(lendingPoolCore).getReserveATokenAddress(_data.srcAddr);\n\n\t\tIAToken(aTokenCollateral).redeem(_data.srcAmount);\n\n\n\n\t\t// swap\n\n\t\t(, uint256 destAmount) = _sell(_data);\n\n\n\n\t\tdestAmount -= getFee(destAmount, user, _gasCost, _data.destAddr);\n\n\n\n\t\t// payback\n\n\t\tif (_data.destAddr == ETH_ADDR) {\n\n\t\t\tILendingPool(lendingPool).repay{value: destAmount}(_data.destAddr, destAmount, payable(address(this)));\n\n\t\t} else {\n\n\t\t\tapproveToken(_data.destAddr, lendingPoolCore);\n\n\t\t\tILendingPool(lendingPool).repay(_data.destAddr, destAmount, payable(address(this)));\n\n\t\t}\n\n\n\n\t\t// first return 0x fee to msg.sender as it is the address that actually sent 0x fee\n\n\t\tsendContractBalance(ETH_ADDR, msg.sender, min(address(this).balance, msg.value));\n\n\t\t// send all leftovers from dest addr to proxy owner\n\n\t\tsendFullContractBalance(_data.destAddr, user);\n\n\n\n\t\tDefisaverLogger(DEFISAVER_LOGGER).Log(address(this), msg.sender, \"AaveRepay\", abi.encode(_data.srcAddr, _data.destAddr, _data.srcAmount, destAmount));\n\n\t}\n\n\n\n\tfunction boost(ExchangeData memory _data, uint _gasCost) public payable burnGas(20) {\n\n\t\taddress lendingPoolCore = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPoolCore();\n\n\t\taddress lendingPool = ILendingPoolAddressesProvider(AAVE_LENDING_POOL_ADDRESSES).getLendingPool();\n\n\t\t(,,,,,,,,,bool collateralEnabled) = ILendingPool(lendingPool).getUserReserveData(_data.destAddr, address(this));\n\n\t\taddress payable user = payable(getUserAddress());\n\n\n\n\t\tuint256 maxBorrow = getMaxBorrow(_data.srcAddr, address(this));\n\n\t\t_data.srcAmount = _data.srcAmount > maxBorrow ? maxBorrow : _data.srcAmount;\n\n\n\n\t\t// borrow amount\n\n\t\tILendingPool(lendingPool).borrow(_data.srcAddr, _data.srcAmount, VARIABLE_RATE, AAVE_REFERRAL_CODE);\n\n\t\t_data.srcAmount -= getFee(_data.srcAmount, user, _gasCost, _data.srcAddr);\n\n\n\n\t\t// swap\n\n\t\t(, uint256 destAmount) = _sell(_data);\n\n\n\n\t\tif (_data.destAddr == ETH_ADDR) {\n\n\t\t\tILendingPool(lendingPool).deposit{value: destAmount}(_data.destAddr, destAmount, AAVE_REFERRAL_CODE);\n\n\t\t} else {\n\n\t\t\tapproveToken(_data.destAddr, lendingPoolCore);\n\n\t\t\tILendingPool(lendingPool).deposit(_data.destAddr, destAmount, AAVE_REFERRAL_CODE);\n\n\t\t}\n\n\n\n\t\tif (!collateralEnabled) {\n\n ILendingPool(lendingPool).setUserUseReserveAsCollateral(_data.destAddr, true);\n\n }\n\n\n\n\t\t// returning to msg.sender as it is the address that actually sent 0x fee\n\n\t\tsendContractBalance(ETH_ADDR, msg.sender, min(address(this).balance, msg.value));\n\n\t\t// send all leftovers from dest addr to proxy owner\n\n\t\tsendFullContractBalance(_data.destAddr, user);\n\n\n\n\t\tDefisaverLogger(DEFISAVER_LOGGER).Log(address(this), msg.sender, \"AaveBoost\", abi.encode(_data.srcAddr, _data.destAddr, _data.srcAmount, destAmount));\n\n\t}\n\n}\n\ncontract CompoundLoanInfo is CompoundSafetyRatio {\n\n\n\n struct LoanData {\n\n address user;\n\n uint128 ratio;\n\n address[] collAddr;\n\n address[] borrowAddr;\n\n uint[] collAmounts;\n\n uint[] borrowAmounts;\n\n }\n\n\n\n struct TokenInfo {\n\n address cTokenAddress;\n\n address underlyingTokenAddress;\n\n uint collateralFactor;\n\n uint price;\n\n }\n\n\n\n struct TokenInfoFull {\n\n address underlyingTokenAddress;\n\n uint supplyRate;\n\n uint borrowRate;\n\n uint exchangeRate;\n\n uint marketLiquidity;\n\n uint totalSupply;\n\n uint totalBorrow;\n\n uint collateralFactor;\n\n uint price;\n\n }\n\n\n\n address public constant ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n address public constant CETH_ADDRESS = 0x4Ddc2D193948926D02f9B1fE9e1daa0718270ED5;\n\n\n\n\n\n /// @notice Calcualted the ratio of coll/debt for a compound user\n\n /// @param _user Address of the user\n\n function getRatio(address _user) public view returns (uint) {\n\n // For each asset the account is in\n\n return getSafetyRatio(_user);\n\n }\n\n\n\n /// @notice Fetches Compound prices for tokens\n\n /// @param _cTokens Arr. of cTokens for which to get the prices\n\n /// @return prices Array of prices\n\n function getPrices(address[] memory _cTokens) public view returns (uint[] memory prices) {\n\n prices = new uint[](_cTokens.length);\n\n address oracleAddr = comp.oracle();\n\n\n\n for (uint i = 0; i < _cTokens.length; ++i) {\n\n prices[i] = CompoundOracleInterface(oracleAddr).getUnderlyingPrice(_cTokens[i]);\n\n }\n\n }\n\n\n\n /// @notice Fetches Compound collateral factors for tokens\n\n /// @param _cTokens Arr. of cTokens for which to get the coll. factors\n\n /// @return collFactors Array of coll. factors\n\n function getCollFactors(address[] memory _cTokens) public view returns (uint[] memory collFactors) {\n\n collFactors = new uint[](_cTokens.length);\n\n\n\n for (uint i = 0; i < _cTokens.length; ++i) {\n\n (, collFactors[i]) = comp.markets(_cTokens[i]);\n\n }\n\n }\n\n\n\n /// @notice Fetches all the collateral/debt address and amounts, denominated in usd\n\n /// @param _user Address of the user\n\n /// @return data LoanData information\n\n function getLoanData(address _user) public view returns (LoanData memory data) {\n\n address[] memory assets = comp.getAssetsIn(_user);\n\n address oracleAddr = comp.oracle();\n\n\n\n data = LoanData({\n\n user: _user,\n\n ratio: 0,\n\n collAddr: new address[](assets.length),\n\n borrowAddr: new address[](assets.length),\n\n collAmounts: new uint[](assets.length),\n\n borrowAmounts: new uint[](assets.length)\n\n });\n\n\n\n uint collPos = 0;\n\n uint borrowPos = 0;\n\n\n\n for (uint i = 0; i < assets.length; i++) {\n\n address asset = assets[i];\n\n\n\n (, uint cTokenBalance, uint borrowBalance, uint exchangeRateMantissa)\n\n = CTokenInterface(asset).getAccountSnapshot(_user);\n\n\n\n Exp memory oraclePrice;\n\n\n\n if (cTokenBalance != 0 || borrowBalance != 0) {\n\n oraclePrice = Exp({mantissa: CompoundOracleInterface(oracleAddr).getUnderlyingPrice(asset)});\n\n }\n\n\n\n // Sum up collateral in Usd\n\n if (cTokenBalance != 0) {\n\n Exp memory exchangeRate = Exp({mantissa: exchangeRateMantissa});\n\n (, Exp memory tokensToUsd) = mulExp(exchangeRate, oraclePrice);\n\n\n\n data.collAddr[collPos] = asset;\n\n (, data.collAmounts[collPos]) = mulScalarTruncate(tokensToUsd, cTokenBalance);\n\n collPos++;\n\n }\n\n\n\n // Sum up debt in Usd\n\n if (borrowBalance != 0) {\n\n data.borrowAddr[borrowPos] = asset;\n\n (, data.borrowAmounts[borrowPos]) = mulScalarTruncate(oraclePrice, borrowBalance);\n\n borrowPos++;\n\n }\n\n }\n\n\n\n data.ratio = uint128(getSafetyRatio(_user));\n\n\n\n return data;\n\n }\n\n\n\n function getTokenBalances(address _user, address[] memory _cTokens) public view returns (uint[] memory balances, uint[] memory borrows) {\n\n balances = new uint[](_cTokens.length);\n\n borrows = new uint[](_cTokens.length);\n\n\n\n for (uint i = 0; i < _cTokens.length; i++) {\n\n address asset = _cTokens[i];\n\n\n\n (, uint cTokenBalance, uint borrowBalance, uint exchangeRateMantissa)\n\n = CTokenInterface(asset).getAccountSnapshot(_user);\n\n\n\n Exp memory exchangeRate = Exp({mantissa: exchangeRateMantissa});\n\n (, balances[i]) = mulScalarTruncate(exchangeRate, cTokenBalance);\n\n\n\n borrows[i] = borrowBalance;\n\n }\n\n\n\n }\n\n\n\n /// @notice Fetches all the collateral/debt address and amounts, denominated in usd\n\n /// @param _users Addresses of the user\n\n /// @return loans Array of LoanData information\n\n function getLoanDataArr(address[] memory _users) public view returns (LoanData[] memory loans) {\n\n loans = new LoanData[](_users.length);\n\n\n\n for (uint i = 0; i < _users.length; ++i) {\n\n loans[i] = getLoanData(_users[i]);\n\n }\n\n }\n\n\n\n /// @notice Calcualted the ratio of coll/debt for a compound user\n\n /// @param _users Addresses of the user\n\n /// @return ratios Array of ratios\n\n function getRatios(address[] memory _users) public view returns (uint[] memory ratios) {\n\n ratios = new uint[](_users.length);\n\n\n\n for (uint i = 0; i < _users.length; ++i) {\n\n ratios[i] = getSafetyRatio(_users[i]);\n\n }\n\n }\n\n\n\n /// @notice Information about cTokens\n\n /// @param _cTokenAddresses Array of cTokens addresses\n\n /// @return tokens Array of cTokens infomartion\n\n function getTokensInfo(address[] memory _cTokenAddresses) public returns(TokenInfo[] memory tokens) {\n\n tokens = new TokenInfo[](_cTokenAddresses.length);\n\n address oracleAddr = comp.oracle();\n\n\n\n for (uint i = 0; i < _cTokenAddresses.length; ++i) {\n\n (, uint collFactor) = comp.markets(_cTokenAddresses[i]);\n\n\n\n tokens[i] = TokenInfo({\n\n cTokenAddress: _cTokenAddresses[i],\n\n underlyingTokenAddress: getUnderlyingAddr(_cTokenAddresses[i]),\n\n collateralFactor: collFactor,\n\n price: CompoundOracleInterface(oracleAddr).getUnderlyingPrice(_cTokenAddresses[i])\n\n });\n\n }\n\n }\n\n\n\n /// @notice Information about cTokens\n\n /// @param _cTokenAddresses Array of cTokens addresses\n\n /// @return tokens Array of cTokens infomartion\n\n function getFullTokensInfo(address[] memory _cTokenAddresses) public returns(TokenInfoFull[] memory tokens) {\n\n tokens = new TokenInfoFull[](_cTokenAddresses.length);\n\n address oracleAddr = comp.oracle();\n\n\n\n for (uint i = 0; i < _cTokenAddresses.length; ++i) {\n\n (, uint collFactor) = comp.markets(_cTokenAddresses[i]);\n\n CTokenInterface cToken = CTokenInterface(_cTokenAddresses[i]);\n\n\n\n tokens[i] = TokenInfoFull({\n\n underlyingTokenAddress: getUnderlyingAddr(_cTokenAddresses[i]),\n\n supplyRate: cToken.supplyRatePerBlock(),\n\n borrowRate: cToken.borrowRatePerBlock(),\n\n exchangeRate: cToken.exchangeRateCurrent(),\n\n marketLiquidity: cToken.getCash(),\n\n totalSupply: cToken.totalSupply(),\n\n totalBorrow: cToken.totalBorrowsCurrent(),\n\n collateralFactor: collFactor,\n\n price: CompoundOracleInterface(oracleAddr).getUnderlyingPrice(_cTokenAddresses[i])\n\n });\n\n }\n\n }\n\n\n\n /// @notice Returns the underlying address of the cToken asset\n\n /// @param _cTokenAddress cToken address\n\n /// @return Token address of the cToken specified\n\n function getUnderlyingAddr(address _cTokenAddress) internal returns (address) {\n\n if (_cTokenAddress == CETH_ADDRESS) {\n\n return ETH_ADDRESS;\n\n } else {\n\n return CTokenInterface(_cTokenAddress).underlying();\n\n }\n\n }\n\n}\n\ncontract CompoundCreateReceiver is FlashLoanReceiverBase, SaverExchangeCore {\n\n\n\n ILendingPoolAddressesProvider public LENDING_POOL_ADDRESS_PROVIDER = ILendingPoolAddressesProvider(0x24a42fD28C976A61Df5D00D0599C34c4f90748c8);\n\n ShifterRegistry public constant shifterRegistry = ShifterRegistry(0x2E82103bD91053C781aaF39da17aE58ceE39d0ab);\n\n\n\n address public constant ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n address payable public constant WALLET_ADDR = 0x322d58b9E75a6918f7e7849AEe0fF09369977e08;\n\n address public constant DISCOUNT_ADDR = 0x1b14E8D511c9A4395425314f849bD737BAF8208F;\n\n\n\n // solhint-disable-next-line no-empty-blocks\n\n constructor() public FlashLoanReceiverBase(LENDING_POOL_ADDRESS_PROVIDER) {}\n\n\n\n /// @notice Called by Aave when sending back the FL amount\n\n /// @param _reserve The address of the borrowed token\n\n /// @param _amount Amount of FL tokens received\n\n /// @param _fee FL Aave fee\n\n /// @param _params The params that are sent from the original FL caller contract\n\n function executeOperation(\n\n address _reserve,\n\n uint256 _amount,\n\n uint256 _fee,\n\n bytes calldata _params)\n\n external override {\n\n // Format the call data for DSProxy\n\n (address payable proxyAddr, bytes memory proxyData, ExchangeData memory exchangeData)\n\n = packFunctionCall(_amount, _fee, _params);\n\n\n\n // Swap\n\n (, uint sellAmount) = _sell(exchangeData);\n\n\n\n // DFS fee\n\n getFee(sellAmount, exchangeData.destAddr, proxyAddr);\n\n\n\n // Send amount to DSProxy\n\n sendToProxy(proxyAddr, exchangeData.destAddr);\n\n\n\n address compOpenProxy = shifterRegistry.getAddr(\"COMP_SHIFTER\");\n\n\n\n // Execute the DSProxy call\n\n DSProxyInterface(proxyAddr).execute(compOpenProxy, proxyData);\n\n\n\n // Repay the loan with the money DSProxy sent back\n\n transferFundsBackToPoolInternal(_reserve, _amount.add(_fee));\n\n\n\n // if there is some eth left (0x fee), return it to user\n\n if (address(this).balance > 0) {\n\n // solhint-disable-next-line avoid-tx-origin\n\n tx.origin.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n /// @notice Formats function data call so we can call it through DSProxy\n\n /// @param _amount Amount of FL\n\n /// @param _fee Fee of the FL\n\n /// @param _params Saver proxy params\n\n function packFunctionCall(uint _amount, uint _fee, bytes memory _params) internal pure returns (address payable, bytes memory proxyData, ExchangeData memory exchangeData) {\n\n (\n\n uint[4] memory numData, // srcAmount, destAmount, minPrice, price0x\n\n address[6] memory cAddresses, // cCollAddr, cDebtAddr, srcAddr, destAddr, exchangeAddr, wrapper\n\n bytes memory callData,\n\n address proxy\n\n )\n\n = abi.decode(_params, (uint256[4],address[6],bytes,address));\n\n\n\n proxyData = abi.encodeWithSignature(\n\n \"open(address,address,uint256)\",\n\n cAddresses[0], cAddresses[1], (_amount + _fee));\n\n\n\n exchangeData = SaverExchangeCore.ExchangeData({\n\n srcAddr: cAddresses[2],\n\n destAddr: cAddresses[3],\n\n srcAmount: numData[0],\n\n destAmount: numData[1],\n\n minPrice: numData[2],\n\n wrapper: cAddresses[5],\n\n exchangeAddr: cAddresses[4],\n\n callData: callData,\n\n price0x: numData[3]\n\n });\n\n\n\n return (payable(proxy), proxyData, exchangeData);\n\n }\n\n\n\n /// @notice Send the FL funds received to DSProxy\n\n /// @param _proxy DSProxy address\n\n /// @param _reserve Token address\n\n function sendToProxy(address payable _proxy, address _reserve) internal {\n\n if (_reserve != ETH_ADDRESS) {\n\n ERC20(_reserve).safeTransfer(_proxy, ERC20(_reserve).balanceOf(address(this)));\n\n } else {\n\n _proxy.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n function getFee(uint _amount, address _tokenAddr, address _proxy) internal returns (uint feeAmount) {\n\n uint fee = 400;\n\n\n\n DSProxy proxy = DSProxy(payable(_proxy));\n\n address user = proxy.owner();\n\n\n\n if (Discount(DISCOUNT_ADDR).isCustomFeeSet(user)) {\n\n fee = Discount(DISCOUNT_ADDR).getCustomServiceFee(user);\n\n }\n\n\n\n feeAmount = (fee == 0) ? 0 : (_amount / fee);\n\n\n\n // fee can't go over 20% of the whole amount\n\n if (feeAmount > (_amount / 5)) {\n\n feeAmount = _amount / 5;\n\n }\n\n\n\n if (_tokenAddr == ETH_ADDRESS) {\n\n WALLET_ADDR.transfer(feeAmount);\n\n } else {\n\n ERC20(_tokenAddr).safeTransfer(WALLET_ADDR, feeAmount);\n\n }\n\n }\n\n\n\n // solhint-disable-next-line no-empty-blocks\n\n receive() external override(FlashLoanReceiverBase, SaverExchangeCore) payable {}\n\n}\n\ncontract CompoundSaverFlashLoan is FlashLoanReceiverBase, SaverExchangeCore {\n\n ILendingPoolAddressesProvider public LENDING_POOL_ADDRESS_PROVIDER = ILendingPoolAddressesProvider(0x24a42fD28C976A61Df5D00D0599C34c4f90748c8);\n\n\n\n address payable public COMPOUND_SAVER_FLASH_PROXY = 0xBcEAb469CbBA225E9dc9Cbd898808A4742687096;\n\n address public constant ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n\n\n\n address public owner;\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n constructor()\n\n FlashLoanReceiverBase(LENDING_POOL_ADDRESS_PROVIDER)\n\n public {\n\n owner = msg.sender;\n\n }\n\n\n\n /// @notice Called by Aave when sending back the FL amount\n\n /// @param _reserve The address of the borrowed token\n\n /// @param _amount Amount of FL tokens received\n\n /// @param _fee FL Aave fee\n\n /// @param _params The params that are sent from the original FL caller contract\n\n function executeOperation(\n\n address _reserve,\n\n uint256 _amount,\n\n uint256 _fee,\n\n bytes calldata _params)\n\n external override {\n\n // Format the call data for DSProxy\n\n (bytes memory proxyData, address payable proxyAddr) = packFunctionCall(_amount, _fee, _params);\n\n\n\n // Send Flash loan amount to DSProxy\n\n sendLoanToProxy(proxyAddr, _reserve, _amount);\n\n\n\n // Execute the DSProxy call\n\n DSProxyInterface(proxyAddr).execute(COMPOUND_SAVER_FLASH_PROXY, proxyData);\n\n\n\n // Repay the loan with the money DSProxy sent back\n\n transferFundsBackToPoolInternal(_reserve, _amount.add(_fee));\n\n\n\n // if there is some eth left (0x fee), return it to user\n\n if (address(this).balance > 0) {\n\n tx.origin.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n /// @notice Formats function data call so we can call it through DSProxy\n\n /// @param _amount Amount of FL\n\n /// @param _fee Fee of the FL\n\n /// @param _params Saver proxy params\n\n /// @return proxyData Formated function call data\n\n function packFunctionCall(uint _amount, uint _fee, bytes memory _params) internal pure returns (bytes memory proxyData, address payable) {\n\n (\n\n bytes memory exDataBytes,\n\n address[2] memory cAddresses, // cCollAddress, cBorrowAddress\n\n uint256 gasCost,\n\n bool isRepay,\n\n address payable proxyAddr\n\n )\n\n = abi.decode(_params, (bytes,address[2],uint256,bool,address));\n\n\n\n ExchangeData memory _exData = unpackExchangeData(exDataBytes);\n\n\n\n uint[2] memory flashLoanData = [_amount, _fee];\n\n\n\n if (isRepay) {\n\n proxyData = abi.encodeWithSignature(\"flashRepay((address,address,uint256,uint256,uint256,address,address,bytes,uint256),address[2],uint256,uint256[2])\", _exData, cAddresses, gasCost, flashLoanData);\n\n } else {\n\n proxyData = abi.encodeWithSignature(\"flashBoost((address,address,uint256,uint256,uint256,address,address,bytes,uint256),address[2],uint256,uint256[2])\", _exData, cAddresses, gasCost, flashLoanData);\n\n }\n\n\n\n return (proxyData, proxyAddr);\n\n }\n\n\n\n /// @notice Send the FL funds received to DSProxy\n\n /// @param _proxy DSProxy address\n\n /// @param _reserve Token address\n\n /// @param _amount Amount of tokens\n\n function sendLoanToProxy(address payable _proxy, address _reserve, uint _amount) internal {\n\n if (_reserve != ETH_ADDRESS) {\n\n ERC20(_reserve).safeTransfer(_proxy, _amount);\n\n }\n\n\n\n _proxy.transfer(address(this).balance);\n\n }\n\n\n\n receive() external override(SaverExchangeCore, FlashLoanReceiverBase) payable {}\n\n}\n\ncontract CompoundSaverFlashProxy is SaverExchangeCore, CompoundSaverHelper {\n\n\n\n address public constant DEFISAVER_LOGGER = 0x5c55B921f590a89C1Ebe84dF170E655a82b62126;\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n /// @notice Repays the position and sends tokens back for FL\n\n /// @param _exData Exchange data\n\n /// @param _cAddresses cTokens addreses and exchange [cCollAddress, cBorrowAddress]\n\n /// @param _gasCost Gas cost for transaction\n\n /// @param _flashLoanData Data about FL [amount, fee]\n\n function flashRepay(\n\n ExchangeData memory _exData,\n\n address[2] memory _cAddresses, // cCollAddress, cBorrowAddress\n\n uint256 _gasCost,\n\n uint[2] memory _flashLoanData // amount, fee\n\n ) public payable {\n\n enterMarket(_cAddresses[0], _cAddresses[1]);\n\n\n\n address payable user = payable(getUserAddress());\n\n uint flashBorrowed = _flashLoanData[0] + _flashLoanData[1];\n\n\n\n uint maxColl = getMaxCollateral(_cAddresses[0], address(this));\n\n\n\n // draw max coll\n\n require(CTokenInterface(_cAddresses[0]).redeemUnderlying(maxColl) == 0);\n\n\n\n address collToken = getUnderlyingAddr(_cAddresses[0]);\n\n address borrowToken = getUnderlyingAddr(_cAddresses[1]);\n\n\n\n uint swapAmount = 0;\n\n\n\n if (collToken != borrowToken) {\n\n // swap max coll + loanAmount\n\n _exData.srcAmount = maxColl + _flashLoanData[0];\n\n (,swapAmount) = _sell(_exData);\n\n\n\n // get fee\n\n swapAmount -= getFee(swapAmount, user, _gasCost, _cAddresses[1]);\n\n } else {\n\n swapAmount = (maxColl + _flashLoanData[0]);\n\n swapAmount -= getGasCost(swapAmount, _gasCost, _cAddresses[1]);\n\n }\n\n\n\n // payback debt\n\n paybackDebt(swapAmount, _cAddresses[1], borrowToken, user);\n\n\n\n // draw collateral for loanAmount + loanFee\n\n require(CTokenInterface(_cAddresses[0]).redeemUnderlying(flashBorrowed) == 0);\n\n\n\n // repay flash loan\n\n returnFlashLoan(collToken, flashBorrowed);\n\n\n\n DefisaverLogger(DEFISAVER_LOGGER).Log(address(this), msg.sender, \"CompoundRepay\", abi.encode(_exData.srcAmount, swapAmount, collToken, borrowToken));\n\n }\n\n\n\n /// @notice Boosts the position and sends tokens back for FL\n\n /// @param _exData Exchange data\n\n /// @param _cAddresses cTokens addreses and exchange [cCollAddress, cBorrowAddress]\n\n /// @param _gasCost Gas cost for specific transaction\n\n /// @param _flashLoanData Data about FL [amount, fee]\n\n function flashBoost(\n\n ExchangeData memory _exData,\n\n address[2] memory _cAddresses, // cCollAddress, cBorrowAddress\n\n uint256 _gasCost,\n\n uint[2] memory _flashLoanData // amount, fee\n\n ) public payable {\n\n enterMarket(_cAddresses[0], _cAddresses[1]);\n\n\n\n address payable user = payable(getUserAddress());\n\n uint flashBorrowed = _flashLoanData[0] + _flashLoanData[1];\n\n\n\n // borrow max amount\n\n uint borrowAmount = getMaxBorrow(_cAddresses[1], address(this));\n\n require(CTokenInterface(_cAddresses[1]).borrow(borrowAmount) == 0);\n\n\n\n address collToken = getUnderlyingAddr(_cAddresses[0]);\n\n address borrowToken = getUnderlyingAddr(_cAddresses[1]);\n\n\n\n uint swapAmount = 0;\n\n\n\n if (collToken != borrowToken) {\n\n // get dfs fee\n\n borrowAmount -= getFee((borrowAmount + _flashLoanData[0]), user, _gasCost, _cAddresses[1]);\n\n _exData.srcAmount = (borrowAmount + _flashLoanData[0]);\n\n\n\n (,swapAmount) = _sell(_exData);\n\n } else {\n\n swapAmount = (borrowAmount + _flashLoanData[0]);\n\n swapAmount -= getGasCost(swapAmount, _gasCost, _cAddresses[1]);\n\n }\n\n\n\n // deposit swaped collateral\n\n depositCollateral(collToken, _cAddresses[0], swapAmount);\n\n\n\n // borrow token to repay flash loan\n\n require(CTokenInterface(_cAddresses[1]).borrow(flashBorrowed) == 0);\n\n\n\n // repay flash loan\n\n returnFlashLoan(borrowToken, flashBorrowed);\n\n\n\n DefisaverLogger(DEFISAVER_LOGGER).Log(address(this), msg.sender, \"CompoundBoost\", abi.encode(_exData.srcAmount, swapAmount, collToken, borrowToken));\n\n }\n\n\n\n /// @notice Helper method to deposit tokens in Compound\n\n /// @param _collToken Token address of the collateral\n\n /// @param _cCollToken CToken address of the collateral\n\n /// @param _depositAmount Amount to deposit\n\n function depositCollateral(address _collToken, address _cCollToken, uint _depositAmount) internal {\n\n approveCToken(_collToken, _cCollToken);\n\n\n\n if (_collToken != ETH_ADDRESS) {\n\n require(CTokenInterface(_cCollToken).mint(_depositAmount) == 0);\n\n } else {\n\n CEtherInterface(_cCollToken).mint{value: _depositAmount}(); // reverts on fail\n\n }\n\n }\n\n\n\n /// @notice Returns the tokens/ether to the msg.sender which is the FL contract\n\n /// @param _tokenAddr Address of token which we return\n\n /// @param _amount Amount to return\n\n function returnFlashLoan(address _tokenAddr, uint _amount) internal {\n\n if (_tokenAddr != ETH_ADDRESS) {\n\n ERC20(_tokenAddr).safeTransfer(msg.sender, _amount);\n\n }\n\n\n\n msg.sender.transfer(address(this).balance);\n\n }\n\n\n\n}\n\ncontract CompoundSaverProxy is CompoundSaverHelper, SaverExchangeCore {\n\n\n\n DefisaverLogger public constant logger = DefisaverLogger(0x5c55B921f590a89C1Ebe84dF170E655a82b62126);\n\n\n\n /// @notice Withdraws collateral, converts to borrowed token and repays debt\n\n /// @dev Called through the DSProxy\n\n /// @param _exData Exchange data\n\n /// @param _cAddresses Coll/Debt addresses [cCollAddress, cBorrowAddress]\n\n /// @param _gasCost Gas cost for specific transaction\n\n function repay(\n\n ExchangeData memory _exData,\n\n address[2] memory _cAddresses, // cCollAddress, cBorrowAddress\n\n uint256 _gasCost\n\n ) public payable {\n\n enterMarket(_cAddresses[0], _cAddresses[1]);\n\n\n\n address payable user = payable(getUserAddress());\n\n\n\n uint maxColl = getMaxCollateral(_cAddresses[0], address(this));\n\n\n\n uint collAmount = (_exData.srcAmount > maxColl) ? maxColl : _exData.srcAmount;\n\n\n\n require(CTokenInterface(_cAddresses[0]).redeemUnderlying(collAmount) == 0);\n\n\n\n address collToken = getUnderlyingAddr(_cAddresses[0]);\n\n address borrowToken = getUnderlyingAddr(_cAddresses[1]);\n\n\n\n uint swapAmount = 0;\n\n\n\n if (collToken != borrowToken) {\n\n (, swapAmount) = _sell(_exData);\n\n swapAmount -= getFee(swapAmount, user, _gasCost, _cAddresses[1]);\n\n } else {\n\n swapAmount = collAmount;\n\n swapAmount -= getGasCost(swapAmount, _gasCost, _cAddresses[1]);\n\n }\n\n\n\n paybackDebt(swapAmount, _cAddresses[1], borrowToken, user);\n\n\n\n // handle 0x fee\n\n tx.origin.transfer(address(this).balance);\n\n\n\n // log amount, collToken, borrowToken\n\n logger.Log(address(this), msg.sender, \"CompoundRepay\", abi.encode(_exData.srcAmount, swapAmount, collToken, borrowToken));\n\n }\n\n\n\n /// @notice Borrows token, converts to collateral, and adds to position\n\n /// @dev Called through the DSProxy\n\n /// @param _exData Exchange data\n\n /// @param _cAddresses Coll/Debt addresses [cCollAddress, cBorrowAddress]\n\n /// @param _gasCost Gas cost for specific transaction\n\n function boost(\n\n ExchangeData memory _exData,\n\n address[2] memory _cAddresses, // cCollAddress, cBorrowAddress\n\n uint256 _gasCost\n\n ) public payable {\n\n enterMarket(_cAddresses[0], _cAddresses[1]);\n\n\n\n address payable user = payable(getUserAddress());\n\n\n\n uint maxBorrow = getMaxBorrow(_cAddresses[1], address(this));\n\n uint borrowAmount = (_exData.srcAmount > maxBorrow) ? maxBorrow : _exData.srcAmount;\n\n\n\n require(CTokenInterface(_cAddresses[1]).borrow(borrowAmount) == 0);\n\n\n\n address collToken = getUnderlyingAddr(_cAddresses[0]);\n\n address borrowToken = getUnderlyingAddr(_cAddresses[1]);\n\n\n\n uint swapAmount = 0;\n\n\n\n if (collToken != borrowToken) {\n\n borrowAmount -= getFee(borrowAmount, user, _gasCost, _cAddresses[1]);\n\n\n\n _exData.srcAmount = borrowAmount;\n\n (,swapAmount) = _sell(_exData);\n\n } else {\n\n swapAmount = borrowAmount;\n\n swapAmount -= getGasCost(swapAmount, _gasCost, _cAddresses[1]);\n\n }\n\n\n\n approveCToken(collToken, _cAddresses[0]);\n\n\n\n if (collToken != ETH_ADDRESS) {\n\n require(CTokenInterface(_cAddresses[0]).mint(swapAmount) == 0);\n\n } else {\n\n CEtherInterface(_cAddresses[0]).mint{value: swapAmount}(); // reverts on fail\n\n }\n\n\n\n // handle 0x fee\n\n tx.origin.transfer(address(this).balance);\n\n\n\n // log amount, collToken, borrowToken\n\n logger.Log(address(this), msg.sender, \"CompoundBoost\", abi.encode(_exData.srcAmount, swapAmount, collToken, borrowToken));\n\n }\n\n\n\n}\n\ncontract SaverExchange is SaverExchangeCore, AdminAuth, GasBurner {\n\n\n\n using SafeERC20 for ERC20;\n\n\n\n uint256 public constant SERVICE_FEE = 800; // 0.125% Fee\n\n\n\n // solhint-disable-next-line const-name-snakecase\n\n DefisaverLogger public constant logger = DefisaverLogger(0x5c55B921f590a89C1Ebe84dF170E655a82b62126);\n\n\n\n uint public burnAmount = 10;\n\n\n\n /// @notice Takes a src amount of tokens and converts it into the dest token\n\n /// @dev Takes fee from the _srcAmount before the exchange\n\n /// @param exData [srcAddr, destAddr, srcAmount, destAmount, minPrice, exchangeType, exchangeAddr, callData, price0x]\n\n /// @param _user User address who called the exchange\n\n function sell(ExchangeData memory exData, address payable _user) public payable burnGas(burnAmount) {\n\n\n\n // take fee\n\n uint dfsFee = getFee(exData.srcAmount, exData.srcAddr);\n\n exData.srcAmount = sub(exData.srcAmount, dfsFee);\n\n\n\n // Perform the exchange\n\n (address wrapper, uint destAmount) = _sell(exData);\n\n\n\n // send back any leftover ether or tokens\n\n sendLeftover(exData.srcAddr, exData.destAddr, _user);\n\n\n\n // log the event\n\n logger.Log(address(this), msg.sender, \"ExchangeSell\", abi.encode(wrapper, exData.srcAddr, exData.destAddr, exData.srcAmount, destAmount));\n\n }\n\n\n\n /// @notice Takes a dest amount of tokens and converts it from the src token\n\n /// @dev Send always more than needed for the swap, extra will be returned\n\n /// @param exData [srcAddr, destAddr, srcAmount, destAmount, minPrice, exchangeType, exchangeAddr, callData, price0x]\n\n /// @param _user User address who called the exchange\n\n function buy(ExchangeData memory exData, address payable _user) public payable burnGas(burnAmount){\n\n\n\n uint dfsFee = getFee(exData.srcAmount, exData.srcAddr);\n\n exData.srcAmount = sub(exData.srcAmount, dfsFee);\n\n\n\n // Perform the exchange\n\n (address wrapper, uint srcAmount) = _buy(exData);\n\n\n\n // send back any leftover ether or tokens\n\n sendLeftover(exData.srcAddr, exData.destAddr, _user);\n\n\n\n // log the event\n\n logger.Log(address(this), msg.sender, \"ExchangeBuy\", abi.encode(wrapper, exData.srcAddr, exData.destAddr, srcAmount, exData.destAmount));\n\n\n\n }\n\n\n\n /// @notice Takes a feePercentage and sends it to wallet\n\n /// @param _amount Dai amount of the whole trade\n\n /// @param _token Address of the token\n\n /// @return feeAmount Amount in Dai owner earned on the fee\n\n function getFee(uint256 _amount, address _token) internal returns (uint256 feeAmount) {\n\n uint256 fee = SERVICE_FEE;\n\n\n\n if (Discount(DISCOUNT_ADDRESS).isCustomFeeSet(msg.sender)) {\n\n fee = Discount(DISCOUNT_ADDRESS).getCustomServiceFee(msg.sender);\n\n }\n\n\n\n if (fee == 0) {\n\n feeAmount = 0;\n\n } else {\n\n feeAmount = _amount / fee;\n\n if (_token == KYBER_ETH_ADDRESS) {\n\n WALLET_ID.transfer(feeAmount);\n\n } else {\n\n ERC20(_token).safeTransfer(WALLET_ID, feeAmount);\n\n }\n\n }\n\n }\n\n\n\n /// @notice Changes the amount of gas token we burn for each call\n\n /// @dev Only callable by the owner\n\n /// @param _newBurnAmount New amount of gas tokens to be burned\n\n function changeBurnAmount(uint _newBurnAmount) public {\n\n require(owner == msg.sender);\n\n\n\n burnAmount = _newBurnAmount;\n\n }\n\n\n\n}\n\ncontract MCDSaverFlashLoan is MCDSaverProxy, AdminAuth, FlashLoanReceiverBase {\n\n\n\n ILendingPoolAddressesProvider public LENDING_POOL_ADDRESS_PROVIDER = ILendingPoolAddressesProvider(0x24a42fD28C976A61Df5D00D0599C34c4f90748c8);\n\n\n\n constructor() FlashLoanReceiverBase(LENDING_POOL_ADDRESS_PROVIDER) public {}\n\n\n\n struct SaverData {\n\n uint cdpId;\n\n uint gasCost;\n\n uint loanAmount;\n\n uint fee;\n\n address joinAddr;\n\n }\n\n\n\n function executeOperation(\n\n address _reserve,\n\n uint256 _amount,\n\n uint256 _fee,\n\n bytes calldata _params)\n\n external override {\n\n\n\n //check the contract has the specified balance\n\n require(_amount <= getBalanceInternal(address(this), _reserve),\n\n \"Invalid balance for the contract\");\n\n\n\n (\n\n bytes memory exDataBytes,\n\n uint cdpId,\n\n uint gasCost,\n\n address joinAddr,\n\n bool isRepay\n\n )\n\n = abi.decode(_params, (bytes,uint256,uint256,address,bool));\n\n\n\n ExchangeData memory exchangeData = unpackExchangeData(exDataBytes);\n\n\n\n SaverData memory saverData = SaverData({\n\n cdpId: cdpId,\n\n gasCost: gasCost,\n\n loanAmount: _amount,\n\n fee: _fee,\n\n joinAddr: joinAddr\n\n });\n\n\n\n if (isRepay) {\n\n repayWithLoan(exchangeData, saverData);\n\n } else {\n\n boostWithLoan(exchangeData, saverData);\n\n }\n\n\n\n transferFundsBackToPoolInternal(_reserve, _amount.add(_fee));\n\n\n\n // if there is some eth left (0x fee), return it to user\n\n if (address(this).balance > 0) {\n\n tx.origin.transfer(address(this).balance);\n\n }\n\n }\n\n\n\n function boostWithLoan(\n\n ExchangeData memory _exchangeData,\n\n SaverData memory _saverData\n\n ) internal {\n\n\n\n address user = getOwner(manager, _saverData.cdpId);\n\n\n\n // Draw users Dai\n\n uint maxDebt = getMaxDebt(_saverData.cdpId, manager.ilks(_saverData.cdpId));\n\n uint daiDrawn = drawDai(_saverData.cdpId, manager.ilks(_saverData.cdpId), maxDebt);\n\n\n\n // Calc. fees\n\n uint dsfFee = getFee((daiDrawn + _saverData.loanAmount), _saverData.gasCost, user);\n\n uint afterFee = (daiDrawn + _saverData.loanAmount) - dsfFee;\n\n\n\n // Swap\n\n _exchangeData.srcAmount = afterFee;\n\n (, uint swapedAmount) = _sell(_exchangeData);\n\n\n\n // Return collateral\n\n addCollateral(_saverData.cdpId, _saverData.joinAddr, swapedAmount);\n\n\n\n // Draw Dai to repay the flash loan\n\n drawDai(_saverData.cdpId, manager.ilks(_saverData.cdpId), (_saverData.loanAmount + _saverData.fee));\n\n\n\n logger.Log(address(this), msg.sender, \"MCDFlashBoost\", abi.encode(_saverData.cdpId, owner, _exchangeData.srcAmount, swapedAmount));\n\n }\n\n\n\n function repayWithLoan(\n\n ExchangeData memory _exchangeData,\n\n SaverData memory _saverData\n\n ) internal {\n\n\n\n address user = getOwner(manager, _saverData.cdpId);\n\n bytes32 ilk = manager.ilks(_saverData.cdpId);\n\n\n\n // Draw collateral\n\n uint maxColl = getMaxCollateral(_saverData.cdpId, ilk, _saverData.joinAddr);\n\n uint collDrawn = drawCollateral(_saverData.cdpId, _saverData.joinAddr, maxColl);\n\n\n\n // Swap\n\n _exchangeData.srcAmount = (_saverData.loanAmount + collDrawn);\n\n (, uint swapedAmount) = _sell(_exchangeData);\n\n\n\n uint paybackAmount = (swapedAmount - getFee(swapedAmount, _saverData.gasCost, user));\n\n paybackAmount = limitLoanAmount(_saverData.cdpId, ilk, paybackAmount, user);\n\n\n\n // Payback the debt\n\n paybackDebt(_saverData.cdpId, ilk, paybackAmount, user);\n\n\n\n // Draw collateral to repay the flash loan\n\n drawCollateral(_saverData.cdpId, _saverData.joinAddr, (_saverData.loanAmount + _saverData.fee));\n\n\n\n logger.Log(address(this), msg.sender, \"MCDFlashRepay\", abi.encode(_saverData.cdpId, owner, _exchangeData.srcAmount, swapedAmount));\n\n }\n\n\n\n /// @notice Handles that the amount is not bigger than cdp debt and not dust\n\n function limitLoanAmount(uint _cdpId, bytes32 _ilk, uint _paybackAmount, address _owner) internal returns (uint256) {\n\n uint debt = getAllDebt(address(vat), manager.urns(_cdpId), manager.urns(_cdpId), _ilk);\n\n\n\n if (_paybackAmount > debt) {\n\n ERC20(DAI_ADDRESS).transfer(_owner, (_paybackAmount - debt));\n\n return debt;\n\n }\n\n\n\n uint debtLeft = debt - _paybackAmount;\n\n\n\n (,,,, uint dust) = vat.ilks(_ilk);\n\n dust = dust / 10**27;\n\n\n\n // Less than dust value\n\n if (debtLeft < dust) {\n\n uint amountOverDust = (dust - debtLeft);\n\n\n\n ERC20(DAI_ADDRESS).transfer(_owner, amountOverDust);\n\n\n\n return (_paybackAmount - amountOverDust);\n\n }\n\n\n\n return _paybackAmount;\n\n }\n\n\n\n receive() external override(FlashLoanReceiverBase, SaverExchangeCore) payable {}\n\n\n\n}\n\ncontract CompoundFlashLoanTaker is CompoundSaverProxy, ProxyPermission, GasBurner {\n\n ILendingPool public constant lendingPool = ILendingPool(0x398eC7346DcD622eDc5ae82352F02bE94C62d119);\n\n\n\n address payable public constant COMPOUND_SAVER_FLASH_LOAN = 0x0ed294340b6328647A652207AA72902747C84c94;\n\n\n\n /// @notice Repays the position with it's own fund or with FL if needed\n\n /// @param _exData Exchange data\n\n /// @param _cAddresses cTokens addreses and exchange [cCollAddress, cBorrowAddress, exchangeAddress]\n\n /// @param _gasCost Gas cost for specific transaction\n\n function repayWithLoan(\n\n ExchangeData memory _exData,\n\n address[2] memory _cAddresses, // cCollAddress, cBorrowAddress\n\n uint256 _gasCost\n\n ) public payable burnGas(25) {\n\n uint maxColl = getMaxCollateral(_cAddresses[0], address(this));\n\n\n\n if (_exData.srcAmount <= maxColl) {\n\n repay(_exData, _cAddresses, _gasCost);\n\n } else {\n\n // 0x fee\n\n COMPOUND_SAVER_FLASH_LOAN.transfer(msg.value);\n\n\n\n uint loanAmount = (_exData.srcAmount - maxColl);\n\n bytes memory encoded = packExchangeData(_exData);\n\n bytes memory paramsData = abi.encode(encoded, _cAddresses, _gasCost, true, address(this));\n\n\n\n givePermission(COMPOUND_SAVER_FLASH_LOAN);\n\n\n\n lendingPool.flashLoan(COMPOUND_SAVER_FLASH_LOAN, getUnderlyingAddr(_cAddresses[0]), loanAmount, paramsData);\n\n\n\n removePermission(COMPOUND_SAVER_FLASH_LOAN);\n\n\n\n logger.Log(address(this), msg.sender, \"CompoundFlashRepay\", abi.encode(loanAmount, _exData.srcAmount, _cAddresses[0]));\n\n }\n\n }\n\n\n\n /// @notice Boosts the position with it's own fund or with FL if needed\n\n /// @param _exData Exchange data\n\n /// @param _cAddresses cTokens addreses and exchange [cCollAddress, cBorrowAddress, exchangeAddress]\n\n /// @param _gasCost Gas cost for specific transaction\n\n function boostWithLoan(\n\n ExchangeData memory _exData,\n\n address[2] memory _cAddresses, // cCollAddress, cBorrowAddress\n\n uint256 _gasCost\n\n ) public payable burnGas(20) {\n\n uint maxBorrow = getMaxBorrow(_cAddresses[1], address(this));\n\n\n\n if (_exData.srcAmount <= maxBorrow) {\n\n boost(_exData, _cAddresses, _gasCost);\n\n } else {\n\n // 0x fee\n\n COMPOUND_SAVER_FLASH_LOAN.transfer(msg.value);\n\n\n\n uint loanAmount = (_exData.srcAmount - maxBorrow);\n\n bytes memory paramsData = abi.encode(packExchangeData(_exData), _cAddresses, _gasCost, false, address(this));\n\n\n\n givePermission(COMPOUND_SAVER_FLASH_LOAN);\n\n\n\n lendingPool.flashLoan(COMPOUND_SAVER_FLASH_LOAN, getUnderlyingAddr(_cAddresses[1]), loanAmount, paramsData);\n\n\n\n removePermission(COMPOUND_SAVER_FLASH_LOAN);\n\n\n\n logger.Log(address(this), msg.sender, \"CompoundFlashBoost\", abi.encode(loanAmount, _exData.srcAmount, _cAddresses[1]));\n\n }\n\n\n\n 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0":{"kind":"number","value":680,"string":"680"},"address":{"kind":"string","value":"0xf03650933fc943a5987db2dd6c33a836190d6f38"},"source_code":{"kind":"string","value":"pragma solidity 0.6.12;\npragma experimental ABIEncoderV2;\n\ncontract IAbacusOracle{\n\n\n uint public callFee;\n\n\n function getJobResponse(uint64 _jobId) public view returns(uint64[] memory _values){ }\n\n\n function scheduleFunc(address to ,uint callTime, bytes memory data , uint fee , uint gaslimit ,uint gasprice)public payable{}\n\n\n}\n\ncontract Initializable {\n\n\n\n\n\n /**\n\n\n * @dev Indicates that the contract has been initialized.\n\n\n */\n\n\n bool private initialized;\n\n\n\n\n\n /**\n\n\n * @dev Indicates that the contract is in the process of being initialized.\n\n\n */\n\n\n bool private initializing;\n\n\n\n\n\n /**\n\n\n * @dev Modifier to use in the initializer function of a contract.\n\n\n */\n\n\n modifier initializer() {\n\n\n require(initializing || isConstructor() || !initialized, \"Contract instance has already been initialized\");\n\n\n\n\n\n bool isTopLevelCall = !initializing;\n\n\n if (isTopLevelCall) {\n\n\n initializing = true;\n\n\n initialized = true;\n\n\n }\n\n\n\n\n\n _;\n\n\n\n\n\n if (isTopLevelCall) {\n\n\n initializing = false;\n\n\n }\n\n\n }\n\n\n\n\n\n\n\n\n \n\n\n /// @dev Returns true if and only if the function is running in the constructor\n\n\n function isConstructor() private view returns (bool) {\n\n\n // extcodesize checks the size of the code stored in an address, and\n\n\n // address returns the current address. Since the code is still not\n\n\n // deployed when running a constructor, any checks on its code size will\n\n\n // yield zero, making it an effective way to detect if a contract is\n\n\n // under construction or not.\n\n\n address self = address(this);\n\n\n uint256 cs;\n\n\n assembly { cs := extcodesize(self) }\n\n\n return cs == 0;\n\n\n }\n\n\n\n\n\n // Reserved storage space to allow for layout changes in the future.\n\n\n uint256[50] private ______gap;\n\n\n \n\n\n}\n\nabstract contract Context {\n\n\n function _msgSender() internal view virtual returns (address payable) {\n\n\n return msg.sender;\n\n\n }\n\n\n\n\n\n function _msgData() internal view virtual returns (bytes memory) {\n\n\n this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691\n\n\n return msg.data;\n\n\n }\n\n\n}\n\nabstract contract AccessControl is Context {\n\n\n using EnumerableSet for EnumerableSet.AddressSet;\n\n\n using Address for address;\n\n\n\n\n\n struct RoleData {\n\n\n EnumerableSet.AddressSet members;\n\n\n bytes32 adminRole;\n\n\n }\n\n\n\n\n\n mapping (bytes32 => RoleData) private _roles;\n\n\n\n\n\n bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;\n\n\n\n\n\n /**\n\n\n * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`\n\n\n *\n\n\n * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite\n\n\n * {RoleAdminChanged} not being emitted signaling this.\n\n\n *\n\n\n * _Available since v3.1._\n\n\n */\n\n\n event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);\n\n\n\n\n\n /**\n\n\n * @dev Emitted when `account` is granted `role`.\n\n\n *\n\n\n * `sender` is the account that originated the contract call, an admin role\n\n\n * bearer except when using {_setupRole}.\n\n\n */\n\n\n event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);\n\n\n\n\n\n /**\n\n\n * @dev Emitted when `account` is revoked `role`.\n\n\n *\n\n\n * `sender` is the account that originated the contract call:\n\n\n * - if using `revokeRole`, it is the admin role bearer\n\n\n * - if using `renounceRole`, it is the role bearer (i.e. `account`)\n\n\n */\n\n\n event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);\n\n\n\n\n\n /**\n\n\n * @dev Returns `true` if `account` has been granted `role`.\n\n\n */\n\n\n function hasRole(bytes32 role, address account) public view returns (bool) {\n\n\n return _roles[role].members.contains(account);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the number of accounts that have `role`. Can be used\n\n\n * together with {getRoleMember} to enumerate all bearers of a role.\n\n\n */\n\n\n function getRoleMemberCount(bytes32 role) public view returns (uint256) {\n\n\n return _roles[role].members.length();\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns one of the accounts that have `role`. `index` must be a\n\n\n * value between 0 and {getRoleMemberCount}, non-inclusive.\n\n\n *\n\n\n * Role bearers are not sorted in any particular way, and their ordering may\n\n\n * change at any point.\n\n\n *\n\n\n * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure\n\n\n * you perform all queries on the same block. See the following\n\n\n * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post]\n\n\n * for more information.\n\n\n */\n\n\n function getRoleMember(bytes32 role, uint256 index) public view returns (address) {\n\n\n return _roles[role].members.at(index);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the admin role that controls `role`. See {grantRole} and\n\n\n * {revokeRole}.\n\n\n *\n\n\n * To change a role's admin, use {_setRoleAdmin}.\n\n\n */\n\n\n function getRoleAdmin(bytes32 role) public view returns (bytes32) {\n\n\n return _roles[role].adminRole;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Grants `role` to `account`.\n\n\n *\n\n\n * If `account` had not been already granted `role`, emits a {RoleGranted}\n\n\n * event.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - the caller must have ``role``'s admin role.\n\n\n */\n\n\n function grantRole(bytes32 role, address account) public virtual {\n\n\n require(hasRole(_roles[role].adminRole, _msgSender()), \"AccessControl: sender must be an admin to grant\");\n\n\n\n\n\n _grantRole(role, account);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Revokes `role` from `account`.\n\n\n *\n\n\n * If `account` had been granted `role`, emits a {RoleRevoked} event.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - the caller must have ``role``'s admin role.\n\n\n */\n\n\n function revokeRole(bytes32 role, address account) public virtual {\n\n\n require(hasRole(_roles[role].adminRole, _msgSender()), \"AccessControl: sender must be an admin to revoke\");\n\n\n\n\n\n _revokeRole(role, account);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Revokes `role` from the calling account.\n\n\n *\n\n\n * Roles are often managed via {grantRole} and {revokeRole}: this function's\n\n\n * purpose is to provide a mechanism for accounts to lose their privileges\n\n\n * if they are compromised (such as when a trusted device is misplaced).\n\n\n *\n\n\n * If the calling account had been granted `role`, emits a {RoleRevoked}\n\n\n * event.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - the caller must be `account`.\n\n\n */\n\n\n function renounceRole(bytes32 role, address account) public virtual {\n\n\n require(account == _msgSender(), \"AccessControl: can only renounce roles for self\");\n\n\n\n\n\n _revokeRole(role, account);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Grants `role` to `account`.\n\n\n *\n\n\n * If `account` had not been already granted `role`, emits a {RoleGranted}\n\n\n * event. Note that unlike {grantRole}, this function doesn't perform any\n\n\n * checks on the calling account.\n\n\n *\n\n\n * [WARNING]\n\n\n * ====\n\n\n * This function should only be called from the constructor when setting\n\n\n * up the initial roles for the system.\n\n\n *\n\n\n * Using this function in any other way is effectively circumventing the admin\n\n\n * system imposed by {AccessControl}.\n\n\n * ====\n\n\n */\n\n\n function _setupRole(bytes32 role, address account) internal virtual {\n\n\n _grantRole(role, account);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Sets `adminRole` as ``role``'s admin role.\n\n\n *\n\n\n * Emits a {RoleAdminChanged} event.\n\n\n */\n\n\n function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {\n\n\n emit RoleAdminChanged(role, _roles[role].adminRole, adminRole);\n\n\n _roles[role].adminRole = adminRole;\n\n\n }\n\n\n\n\n\n function _grantRole(bytes32 role, address account) private {\n\n\n if (_roles[role].members.add(account)) {\n\n\n emit RoleGranted(role, account, _msgSender());\n\n\n }\n\n\n }\n\n\n\n\n\n function _revokeRole(bytes32 role, address account) private {\n\n\n if (_roles[role].members.remove(account)) {\n\n\n emit RoleRevoked(role, account, _msgSender());\n\n\n }\n\n\n }\n\n\n}\n\ncontract ERC20Basic {\n\n\n uint public _totalSupply;\n\n\n string public name;\n\n\n string public symbol;\n\n\n uint public decimals;\n\n\n function totalSupply() public view returns (uint){}\n\n\n function balanceOf(address who) public view returns (uint){}\n\n\n function transfer(address to, uint value) public {}\n\n\n function transferFrom(address _from, address _to, uint _value) public{}\n\n\n function approve(address spender, uint amount) public {}\n\n\n function allowance(address _owner, address _spender) public view returns (uint remaining) {}\n\n\n \n\n\n event Transfer(address indexed from, address indexed to, uint value);\n\n\n}\n\ninterface IERC20 {\n\n\n /**\n\n\n * @dev Returns the amount of tokens in existence.\n\n\n */\n\n\n function totalSupply() external view returns (uint256);\n\n\n\n\n\n /**\n\n\n * @dev Returns the amount of tokens owned by `account`.\n\n\n */\n\n\n function balanceOf(address account) external view returns (uint256);\n\n\n\n\n\n /**\n\n\n * @dev Moves `amount` tokens from the caller's account to `recipient`.\n\n\n *\n\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n\n *\n\n\n * Emits a {Transfer} event.\n\n\n */\n\n\n function transfer(address recipient, uint256 amount) external returns (bool);\n\n\n\n\n\n /**\n\n\n * @dev Returns the remaining number of tokens that `spender` will be\n\n\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n\n\n * zero by default.\n\n\n *\n\n\n * This value changes when {approve} or {transferFrom} are called.\n\n\n */\n\n\n function allowance(address owner, address spender) external view returns (uint256);\n\n\n\n\n\n /**\n\n\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n\n\n *\n\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n\n *\n\n\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n\n\n * that someone may use both the old and the new allowance by unfortunate\n\n\n * transaction ordering. One possible solution to mitigate this race\n\n\n * condition is to first reduce the spender's allowance to 0 and set the\n\n\n * desired value afterwards:\n\n\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n\n\n *\n\n\n * Emits an {Approval} event.\n\n\n */\n\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n\n\n\n\n /**\n\n\n * @dev Moves `amount` tokens from `sender` to `recipient` using the\n\n\n * allowance mechanism. `amount` is then deducted from the caller's\n\n\n * allowance.\n\n\n *\n\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n\n *\n\n\n * Emits a {Transfer} event.\n\n\n */\n\n\n function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);\n\n\n\n\n\n /**\n\n\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n\n\n * another (`to`).\n\n\n *\n\n\n * Note that `value` may be zero.\n\n\n */\n\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n\n\n\n\n /**\n\n\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n\n\n * a call to {approve}. `value` is the new allowance.\n\n\n */\n\n\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n\n}\n\ncontract ERC20 is Context, IERC20 {\n\n\n using SafeMath for uint256;\n\n\n using Address for address;\n\n\n\n\n\n mapping (address => uint256) private _balances;\n\n\n mapping (address => uint256) public lockedAmount;\n\n\n mapping (address => mapping (address => uint256)) private _allowances;\n\n\n\n\n\n uint256 private _totalSupply;\n\n\n\n\n\n string private _name;\n\n\n string private _symbol;\n\n\n uint8 private _decimals;\n\n\n\n\n\n /**\n\n\n * @dev Sets the values for {name} and {symbol}, initializes {decimals} with\n\n\n * a default value of 18.\n\n\n *\n\n\n * To select a different value for {decimals}, use {_setupDecimals}.\n\n\n *\n\n\n * All three of these values are immutable: they can only be set once during\n\n\n * construction.\n\n\n */\n\n\n constructor (string memory name, string memory symbol,uint8 decimals) public {\n\n\n _name = name;\n\n\n _symbol = symbol;\n\n\n _decimals = decimals;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the name of the token.\n\n\n */\n\n\n function name() public view returns (string memory) {\n\n\n return _name;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the symbol of the token, usually a shorter version of the\n\n\n * name.\n\n\n */\n\n\n function symbol() public view returns (string memory) {\n\n\n return _symbol;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the number of decimals used to get its user representation.\n\n\n * For example, if `decimals` equals `2`, a balance of `505` tokens should\n\n\n * be displayed to a user as `5,05` (`505 / 10 ** 2`).\n\n\n *\n\n\n * Tokens usually opt for a value of 18, imitating the relationship between\n\n\n * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is\n\n\n * called.\n\n\n *\n\n\n * NOTE: This information is only used for _display_ purposes: it in\n\n\n * no way affects any of the arithmetic of the contract, including\n\n\n * {IERC20-balanceOf} and {IERC20-transfer}.\n\n\n */\n\n\n function decimals() public view returns (uint8) {\n\n\n return _decimals;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev See {IERC20-totalSupply}.\n\n\n */\n\n\n function totalSupply() public view override returns (uint256) {\n\n\n return _totalSupply;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev See {IERC20-balanceOf}.\n\n\n */\n\n\n function balanceOf(address account) public view override returns (uint256) {\n\n\n return _balances[account];\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev See {IERC20-transfer}.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `recipient` cannot be the zero address.\n\n\n * - the caller must have a balance of at least `amount`.\n\n\n */\n\n\n function transfer(address recipient, uint256 amount) public virtual override returns (bool) {\n\n\n _transfer(_msgSender(), recipient, amount);\n\n\n return true;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev See {IERC20-allowance}.\n\n\n */\n\n\n function allowance(address owner, address spender) public view virtual override returns (uint256) {\n\n\n return _allowances[owner][spender];\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev See {IERC20-approve}.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `spender` cannot be the zero address.\n\n\n */\n\n\n function approve(address spender, uint256 amount) public virtual override returns (bool) {\n\n\n _approve(_msgSender(), spender, amount);\n\n\n return true;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev See {IERC20-transferFrom}.\n\n\n *\n\n\n * Emits an {Approval} event indicating the updated allowance. This is not\n\n\n * required by the EIP. See the note at the beginning of {ERC20};\n\n\n *\n\n\n * Requirements:\n\n\n * - `sender` and `recipient` cannot be the zero address.\n\n\n * - `sender` must have a balance of at least `amount`.\n\n\n * - the caller must have allowance for ``sender``'s tokens of at least\n\n\n * `amount`.\n\n\n */\n\n\n function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {\n\n\n _transfer(sender, recipient, amount);\n\n\n _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, \"ERC20: transfer amount exceeds allowance\"));\n\n\n return true;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Atomically increases the allowance granted to `spender` by the caller.\n\n\n *\n\n\n * This is an alternative to {approve} that can be used as a mitigation for\n\n\n * problems described in {IERC20-approve}.\n\n\n *\n\n\n * Emits an {Approval} event indicating the updated allowance.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `spender` cannot be the zero address.\n\n\n */\n\n\n function availableAmount(address owner) public view returns(uint256){\n\n\n return balanceOf(owner).sub(lockedAmount[owner]);\n\n\n }\n\n\n function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {\n\n\n _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));\n\n\n return true;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Atomically decreases the allowance granted to `spender` by the caller.\n\n\n *\n\n\n * This is an alternative to {approve} that can be used as a mitigation for\n\n\n * problems described in {IERC20-approve}.\n\n\n *\n\n\n * Emits an {Approval} event indicating the updated allowance.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `spender` cannot be the zero address.\n\n\n * - `spender` must have allowance for the caller of at least\n\n\n * `subtractedValue`.\n\n\n */\n\n\n function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {\n\n\n _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, \"ERC20: decreased allowance below zero\"));\n\n\n return true;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Moves tokens `amount` from `sender` to `recipient`.\n\n\n *\n\n\n * This is internal function is equivalent to {transfer}, and can be used to\n\n\n * e.g. implement automatic token fees, slashing mechanisms, etc.\n\n\n *\n\n\n * Emits a {Transfer} event.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `sender` cannot be the zero address.\n\n\n * - `recipient` cannot be the zero address.\n\n\n * - `sender` must have a balance of at least `amount`.\n\n\n */\n\n\n function _transfer(address sender, address recipient, uint256 amount) internal virtual {\n\n\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n\n require(amount <= availableAmount(sender),\"ERC20 : amount exceeds available amount\");\n\n\n\n\n\n _beforeTokenTransfer(sender, recipient, amount);\n\n\n\n\n\n _balances[sender] = _balances[sender].sub(amount, \"ERC20: transfer amount exceeds balance\");\n\n\n _balances[recipient] = _balances[recipient].add(amount);\n\n\n emit Transfer(sender, recipient, amount);\n\n\n }\n\n\n\n\n\n /** @dev Creates `amount` tokens and assigns them to `account`, increasing\n\n\n * the total supply.\n\n\n *\n\n\n * Emits a {Transfer} event with `from` set to the zero address.\n\n\n *\n\n\n * Requirements\n\n\n *\n\n\n * - `to` cannot be the zero address.\n\n\n */\n\n\n function _mint(address account, uint256 amount) internal virtual {\n\n\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n\n\n\n\n _beforeTokenTransfer(address(0), account, amount);\n\n\n\n\n\n _totalSupply = _totalSupply.add(amount);\n\n\n _balances[account] = _balances[account].add(amount);\n\n\n emit Transfer(address(0), account, amount);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Destroys `amount` tokens from `account`, reducing the\n\n\n * total supply.\n\n\n *\n\n\n * Emits a {Transfer} event with `to` set to the zero address.\n\n\n *\n\n\n * Requirements\n\n\n *\n\n\n * - `account` cannot be the zero address.\n\n\n * - `account` must have at least `amount` tokens.\n\n\n */\n\n\n function _burn(address account, uint256 amount) internal virtual {\n\n\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n\n require(amount <= availableAmount(account),\"ERC20 : burn exceeds available amount\");\n\n\n \n\n\n _beforeTokenTransfer(account, address(0), amount);\n\n\n\n\n\n _balances[account] = _balances[account].sub(amount, \"ERC20: burn amount exceeds balance\");\n\n\n _totalSupply = _totalSupply.sub(amount);\n\n\n emit Transfer(account, address(0), amount);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens.\n\n\n *\n\n\n * This is internal function is equivalent to `approve`, and can be used to\n\n\n * e.g. set automatic allowances for certain subsystems, etc.\n\n\n *\n\n\n * Emits an {Approval} event.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `owner` cannot be the zero address.\n\n\n * - `spender` cannot be the zero address.\n\n\n */\n\n\n function _approve(address owner, address spender, uint256 amount) internal virtual {\n\n\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\n require(amount <= availableAmount(owner),\"ERC20 : approve amount exceeds available amount\");\n\n\n \n\n\n _allowances[owner][spender] = amount;\n\n\n emit Approval(owner, spender, amount);\n\n\n }\n\n\n \n\n\n function _lock(address owner,uint256 amount) internal virtual {\n\n\n require(owner != address(0), \"ERC20: lock for zero address\");\n\n\n require(amount <= availableAmount(owner),\"ERC20: lock value more tha available amount\");\n\n\n \n\n\n lockedAmount[owner] = lockedAmount[owner].add(amount);\n\n\n }\n\n\n function _release(address owner,uint256 amount) internal virtual{\n\n\n require(owner != address(0), \"ERC20: release for zero address\");\n\n\n require(amount <= lockedAmount[owner],\"ERC20 : release value more then locked value\");\n\n\n \n\n\n lockedAmount[owner] = lockedAmount[owner].sub(amount);\n\n\n }\n\n\n /**\n\n\n * @dev Sets {decimals} to a value other than the default one of 18.\n\n\n *\n\n\n * WARNING: This function should only be called from the constructor. Most\n\n\n * applications that interact with token contracts will not expect\n\n\n * {decimals} to ever change, and may work incorrectly if it does.\n\n\n */\n\n\n function _setupDecimals(uint8 decimals_) internal {\n\n\n _decimals = decimals_;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Hook that is called before any transfer of tokens. This includes\n\n\n * minting and burning.\n\n\n *\n\n\n * Calling conditions:\n\n\n *\n\n\n * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n\n\n * will be to transferred to `to`.\n\n\n * - when `from` is zero, `amount` tokens will be minted for `to`.\n\n\n * - when `to` is zero, `amount` of ``from``'s tokens will be burned.\n\n\n * - `from` and `to` are never both zero.\n\n\n *\n\n\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n\n\n */\n\n\n function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { }\n\n\n}\n\nlibrary Address {\n\n\n /**\n\n\n * @dev Returns true if `account` is a contract.\n\n\n *\n\n\n * [IMPORTANT]\n\n\n * ====\n\n\n * It is unsafe to assume that an address for which this function returns\n\n\n * false is an externally-owned account (EOA) and not a contract.\n\n\n *\n\n\n * Among others, `isContract` will return false for the following\n\n\n * types of addresses:\n\n\n *\n\n\n * - an externally-owned account\n\n\n * - a contract in construction\n\n\n * - an address where a contract will be created\n\n\n * - an address where a contract lived, but was destroyed\n\n\n * ====\n\n\n */\n\n\n function isContract(address account) internal view returns (bool) {\n\n\n // According to EIP-1052, 0x0 is the value returned for not-yet created accounts\n\n\n // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned\n\n\n // for accounts without code, i.e. `keccak256('')`\n\n\n bytes32 codehash;\n\n\n bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;\n\n\n // solhint-disable-next-line no-inline-assembly\n\n\n assembly { codehash := extcodehash(account) }\n\n\n return (codehash != accountHash && codehash != 0x0);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n\n\n * `recipient`, forwarding all available gas and reverting on errors.\n\n\n *\n\n\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n\n\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n\n\n * imposed by `transfer`, making them unable to receive funds via\n\n\n * `transfer`. {sendValue} removes this limitation.\n\n\n *\n\n\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n\n\n *\n\n\n * IMPORTANT: because control is transferred to `recipient`, care must be\n\n\n * taken to not create reentrancy vulnerabilities. Consider using\n\n\n * {ReentrancyGuard} or the\n\n\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n\n\n */\n\n\n function sendValue(address payable recipient, uint256 amount) internal {\n\n\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n\n\n\n\n // solhint-disable-next-line avoid-low-level-calls, avoid-call-value\n\n\n (bool success, ) = recipient.call{ value: amount }(\"\");\n\n\n require(success, \"Address: unable to send value, recipient may have reverted\");\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Performs a Solidity function call using a low level `call`. A\n\n\n * plain`call` is an unsafe replacement for a function call: use this\n\n\n * function instead.\n\n\n *\n\n\n * If `target` reverts with a revert reason, it is bubbled up by this\n\n\n * function (like regular Solidity function calls).\n\n\n *\n\n\n * Returns the raw returned data. To convert to the expected return value,\n\n\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `target` must be a contract.\n\n\n * - calling `target` with `data` must not revert.\n\n\n *\n\n\n * _Available since v3.1._\n\n\n */\n\n\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n\n\n return functionCall(target, data, \"Address: low-level call failed\");\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n\n\n * `errorMessage` as a fallback revert reason when `target` reverts.\n\n\n *\n\n\n * _Available since v3.1._\n\n\n */\n\n\n function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {\n\n\n return _functionCallWithValue(target, data, 0, errorMessage);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n\n\n * but also transferring `value` wei to `target`.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - the calling contract must have an ETH balance of at least `value`.\n\n\n * - the called Solidity function must be `payable`.\n\n\n *\n\n\n * _Available since v3.1._\n\n\n */\n\n\n function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n\n\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n\n\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n\n\n *\n\n\n * _Available since v3.1._\n\n\n */\n\n\n function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {\n\n\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n\n\n return _functionCallWithValue(target, data, value, errorMessage);\n\n\n }\n\n\n\n\n\n function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {\n\n\n require(isContract(target), \"Address: call to non-contract\");\n\n\n\n\n\n // solhint-disable-next-line avoid-low-level-calls\n\n\n (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);\n\n\n if (success) {\n\n\n return returndata;\n\n\n } else {\n\n\n // Look for revert reason and bubble it up if present\n\n\n if (returndata.length > 0) {\n\n\n // The easiest way to bubble the revert reason is using memory via assembly\n\n\n\n\n\n // solhint-disable-next-line no-inline-assembly\n\n\n assembly {\n\n\n let returndata_size := mload(returndata)\n\n\n revert(add(32, returndata), returndata_size)\n\n\n }\n\n\n } else {\n\n\n revert(errorMessage);\n\n\n }\n\n\n }\n\n\n }\n\n\n}\n\nlibrary EnumerableSet {\n\n\n // To implement this library for multiple types with as little code\n\n\n // repetition as possible, we write it in terms of a generic Set type with\n\n\n // bytes32 values.\n\n\n // The Set implementation uses private functions, and user-facing\n\n\n // implementations (such as AddressSet) are just wrappers around the\n\n\n // underlying Set.\n\n\n // This means that we can only create new EnumerableSets for types that fit\n\n\n // in bytes32.\n\n\n\n\n\n struct Set {\n\n\n // Storage of set values\n\n\n bytes32[] _values;\n\n\n\n\n\n // Position of the value in the `values` array, plus 1 because index 0\n\n\n // means a value is not in the set.\n\n\n mapping (bytes32 => uint256) _indexes;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Add a value to a set. O(1).\n\n\n *\n\n\n * Returns true if the value was added to the set, that is if it was not\n\n\n * already present.\n\n\n */\n\n\n function _add(Set storage set, bytes32 value) private returns (bool) {\n\n\n if (!_contains(set, value)) {\n\n\n set._values.push(value);\n\n\n // The value is stored at length-1, but we add 1 to all indexes\n\n\n // and use 0 as a sentinel value\n\n\n set._indexes[value] = set._values.length;\n\n\n return true;\n\n\n } else {\n\n\n return false;\n\n\n }\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Removes a value from a set. O(1).\n\n\n *\n\n\n * Returns true if the value was removed from the set, that is if it was\n\n\n * present.\n\n\n */\n\n\n function _remove(Set storage set, bytes32 value) private returns (bool) {\n\n\n // We read and store the value's index to prevent multiple reads from the same storage slot\n\n\n uint256 valueIndex = set._indexes[value];\n\n\n\n\n\n if (valueIndex != 0) { // Equivalent to contains(set, value)\n\n\n // To delete an element from the _values array in O(1), we swap the element to delete with the last one in\n\n\n // the array, and then remove the last element (sometimes called as 'swap and pop').\n\n\n // This modifies the order of the array, as noted in {at}.\n\n\n\n\n\n uint256 toDeleteIndex = valueIndex - 1;\n\n\n uint256 lastIndex = set._values.length - 1;\n\n\n\n\n\n // When the value to delete is the last one, the swap operation is unnecessary. However, since this occurs\n\n\n // so rarely, we still do the swap anyway to avoid the gas cost of adding an 'if' statement.\n\n\n\n\n\n bytes32 lastvalue = set._values[lastIndex];\n\n\n\n\n\n // Move the last value to the index where the value to delete is\n\n\n set._values[toDeleteIndex] = lastvalue;\n\n\n // Update the index for the moved value\n\n\n set._indexes[lastvalue] = toDeleteIndex + 1; // All indexes are 1-based\n\n\n\n\n\n // Delete the slot where the moved value was stored\n\n\n set._values.pop();\n\n\n\n\n\n // Delete the index for the deleted slot\n\n\n delete set._indexes[value];\n\n\n\n\n\n return true;\n\n\n } else {\n\n\n return false;\n\n\n }\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns true if the value is in the set. O(1).\n\n\n */\n\n\n function _contains(Set storage set, bytes32 value) private view returns (bool) {\n\n\n return set._indexes[value] != 0;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the number of values on the set. O(1).\n\n\n */\n\n\n function _length(Set storage set) private view returns (uint256) {\n\n\n return set._values.length;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the value stored at position `index` in the set. O(1).\n\n\n *\n\n\n * Note that there are no guarantees on the ordering of values inside the\n\n\n * array, and it may change when more values are added or removed.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `index` must be strictly less than {length}.\n\n\n */\n\n\n function _at(Set storage set, uint256 index) private view returns (bytes32) {\n\n\n require(set._values.length > index, \"EnumerableSet: index out of bounds\");\n\n\n return set._values[index];\n\n\n }\n\n\n\n\n\n // AddressSet\n\n\n\n\n\n struct AddressSet {\n\n\n Set _inner;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Add a value to a set. O(1).\n\n\n *\n\n\n * Returns true if the value was added to the set, that is if it was not\n\n\n * already present.\n\n\n */\n\n\n function add(AddressSet storage set, address value) internal returns (bool) {\n\n\n return _add(set._inner, bytes32(uint256(value)));\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Removes a value from a set. O(1).\n\n\n *\n\n\n * Returns true if the value was removed from the set, that is if it was\n\n\n * present.\n\n\n */\n\n\n function remove(AddressSet storage set, address value) internal returns (bool) {\n\n\n return _remove(set._inner, bytes32(uint256(value)));\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns true if the value is in the set. O(1).\n\n\n */\n\n\n function contains(AddressSet storage set, address value) internal view returns (bool) {\n\n\n return _contains(set._inner, bytes32(uint256(value)));\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the number of values in the set. O(1).\n\n\n */\n\n\n function length(AddressSet storage set) internal view returns (uint256) {\n\n\n return _length(set._inner);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the value stored at position `index` in the set. O(1).\n\n\n *\n\n\n * Note that there are no guarantees on the ordering of values inside the\n\n\n * array, and it may change when more values are added or removed.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `index` must be strictly less than {length}.\n\n\n */\n\n\n function at(AddressSet storage set, uint256 index) internal view returns (address) {\n\n\n return address(uint256(_at(set._inner, index)));\n\n\n }\n\n\n\n\n\n\n\n\n // UintSet\n\n\n\n\n\n struct UintSet {\n\n\n Set _inner;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Add a value to a set. O(1).\n\n\n *\n\n\n * Returns true if the value was added to the set, that is if it was not\n\n\n * already present.\n\n\n */\n\n\n function add(UintSet storage set, uint256 value) internal returns (bool) {\n\n\n return _add(set._inner, bytes32(value));\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Removes a value from a set. O(1).\n\n\n *\n\n\n * Returns true if the value was removed from the set, that is if it was\n\n\n * present.\n\n\n */\n\n\n function remove(UintSet storage set, uint256 value) internal returns (bool) {\n\n\n return _remove(set._inner, bytes32(value));\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns true if the value is in the set. O(1).\n\n\n */\n\n\n function contains(UintSet storage set, uint256 value) internal view returns (bool) {\n\n\n return _contains(set._inner, bytes32(value));\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the number of values on the set. O(1).\n\n\n */\n\n\n function length(UintSet storage set) internal view returns (uint256) {\n\n\n return _length(set._inner);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the value stored at position `index` in the set. O(1).\n\n\n *\n\n\n * Note that there are no guarantees on the ordering of values inside the\n\n\n * array, and it may change when more values are added or removed.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `index` must be strictly less than {length}.\n\n\n */\n\n\n function at(UintSet storage set, uint256 index) internal view returns (uint256) {\n\n\n return uint256(_at(set._inner, index));\n\n\n }\n\n\n}\n\nlibrary SafeMath {\n\n\n /**\n\n\n * @dev Returns the addition of two unsigned integers, reverting on\n\n\n * overflow.\n\n\n *\n\n\n * Counterpart to Solidity's `+` operator.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - Addition cannot overflow.\n\n\n */\n\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n\n\n uint256 c = a + b;\n\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n\n\n\n\n return c;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the subtraction of two unsigned integers, reverting on\n\n\n * overflow (when the result is negative).\n\n\n *\n\n\n * Counterpart to Solidity's `-` operator.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - Subtraction cannot overflow.\n\n\n */\n\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n\n\n return sub(a, b, \"SafeMath: subtraction overflow\");\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the subtraction of two unsigned integers, reverting with custom message on\n\n\n * overflow (when the result is negative).\n\n\n *\n\n\n * Counterpart to Solidity's `-` operator.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - Subtraction cannot overflow.\n\n\n */\n\n\n function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n\n require(b <= a, errorMessage);\n\n\n uint256 c = a - b;\n\n\n\n\n\n return c;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the multiplication of two unsigned integers, reverting on\n\n\n * overflow.\n\n\n *\n\n\n * Counterpart to Solidity's `*` operator.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - Multiplication cannot overflow.\n\n\n */\n\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n\n\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n\n\n // benefit is lost if 'b' is also tested.\n\n\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n\n\n if (a == 0) {\n\n\n return 0;\n\n\n }\n\n\n\n\n\n uint256 c = a * b;\n\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n\n\n\n\n return c;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the integer division of two unsigned integers. Reverts on\n\n\n * division by zero. The result is rounded towards zero.\n\n\n *\n\n\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n\n\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n\n\n * uses an invalid opcode to revert (consuming all remaining gas).\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - The divisor cannot be zero.\n\n\n */\n\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n\n\n return div(a, b, \"SafeMath: division by zero\");\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the integer division of two unsigned integers. Reverts with custom message on\n\n\n * division by zero. The result is rounded towards zero.\n\n\n *\n\n\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n\n\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n\n\n * uses an invalid opcode to revert (consuming all remaining gas).\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - The divisor cannot be zero.\n\n\n */\n\n\n function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n\n require(b > 0, errorMessage);\n\n\n uint256 c = a / b;\n\n\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n\n\n\n\n return c;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n\n\n * Reverts when dividing by zero.\n\n\n *\n\n\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n\n\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n\n\n * invalid opcode to revert (consuming all remaining gas).\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - The divisor cannot be zero.\n\n\n */\n\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n\n\n return mod(a, b, \"SafeMath: modulo by zero\");\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n\n\n * Reverts with custom message when dividing by zero.\n\n\n *\n\n\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n\n\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n\n\n * invalid opcode to revert (consuming all remaining gas).\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - The divisor cannot be zero.\n\n\n */\n\n\n function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n\n require(b != 0, errorMessage);\n\n\n return a % b;\n\n\n }\n\n\n}\n\ncontract Pausable is Context {\n\n\n /**\n\n\n * @dev Emitted when the pause is triggered by `account`.\n\n\n */\n\n\n event Paused(address account);\n\n\n\n\n\n /**\n\n\n * @dev Emitted when the pause is lifted by `account`.\n\n\n */\n\n\n event Unpaused(address account);\n\n\n\n\n\n bool private _paused;\n\n\n\n\n\n /**\n\n\n * @dev Initializes the contract in unpaused state.\n\n\n */\n\n\n constructor () internal {\n\n\n _paused = false;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns true if the contract is paused, and false otherwise.\n\n\n */\n\n\n function paused() public view returns (bool) {\n\n\n return _paused;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Modifier to make a function callable only when the contract is not paused.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - The contract must not be paused.\n\n\n */\n\n\n modifier whenNotPaused() {\n\n\n require(!_paused, \"Pausable: paused\");\n\n\n _;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Modifier to make a function callable only when the contract is paused.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - The contract must be paused.\n\n\n */\n\n\n modifier whenPaused() {\n\n\n require(_paused, \"Pausable: not paused\");\n\n\n _;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Triggers stopped state.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - The contract must not be paused.\n\n\n */\n\n\n function _pause() internal virtual whenNotPaused {\n\n\n _paused = true;\n\n\n emit Paused(_msgSender());\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns to normal state.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - The contract must be paused.\n\n\n */\n\n\n function _unpause() internal virtual whenPaused {\n\n\n _paused = false;\n\n\n emit Unpaused(_msgSender());\n\n\n }\n\n\n}\n\nabstract contract ERC20Pausable is ERC20, Pausable {\n\n\n /**\n\n\n * @dev See {ERC20-_beforeTokenTransfer}.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - the contract must not be paused.\n\n\n */\n\n\n function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual override {\n\n\n super._beforeTokenTransfer(from, to, amount);\n\n\n\n\n\n require(!paused(), \"ERC20Pausable: token transfer while paused\");\n\n\n }\n\n\n}\n\ncontract wERC20 is Context, AccessControl, ERC20, ERC20Pausable {\n\n\n bytes32 public constant MINTER_ROLE = keccak256(\"MINTER_ROLE\");\n\n\n bytes32 public constant PAUSER_ROLE = keccak256(\"PAUSER_ROLE\");\n\n\n bytes32 public constant ETMOWNER_ROLE = keccak256(\"ETM_ROLE\");\n\n\n\n\n\n /**\n\n\n * @dev Grants `DEFAULT_ADMIN_ROLE`, `MINTER_ROLE` and `PAUSER_ROLE` to the\n\n\n * account that deploys the contract.\n\n\n *\n\n\n * See {ERC20-constructor}.\n\n\n */\n\n\n constructor(string memory name, string memory symbol,uint8 decimals,address admin,address etmOwner) public ERC20(name, symbol,decimals) {\n\n\n _setupRole(DEFAULT_ADMIN_ROLE, admin);\n\n\n _setupRole(ETMOWNER_ROLE, etmOwner);\n\n\n _setupRole(MINTER_ROLE, admin);\n\n\n _setupRole(PAUSER_ROLE, admin);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Creates `amount` new tokens for `to`.\n\n\n *\n\n\n * See {ERC20-_mint}.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - the caller must have the `MINTER_ROLE`.\n\n\n */\n\n\n function mint(address to, uint256 amount) public virtual {\n\n\n require(hasRole(MINTER_ROLE, _msgSender()), \"ERC20PresetMinterPauser: must have minter role to mint\");\n\n\n _mint(to, amount);\n\n\n }\n\n\n \n\n\n function burnFrom(address _from,uint256 amount) public virtual{\n\n\n require(hasRole(MINTER_ROLE, _msgSender()), \"ERC20PresetMinterPauser: must have admin role to burn\");\n\n\n _burn(_from,amount);\n\n\n }\n\n\n \n\n\n /**\n\n\n * @dev Pauses all token transfers.\n\n\n *\n\n\n * See {ERC20Pausable} and {Pausable-_pause}.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - the caller must have the `PAUSER_ROLE`.\n\n\n */\n\n\n function pause() public virtual {\n\n\n require(hasRole(PAUSER_ROLE, _msgSender()), \"ERC20PresetMinterPauser: must have pauser role to pause\");\n\n\n _pause();\n\n\n }\n\n\n function changeAdmin(address admin) public virtual{\n\n\n require(hasRole(ETMOWNER_ROLE, _msgSender()), \"ERC20PresetMinterPauser: must have admin role\");\n\n\n _setupRole(DEFAULT_ADMIN_ROLE, admin);\n\n\n _setupRole(MINTER_ROLE, admin);\n\n\n _setupRole(PAUSER_ROLE, admin); \n\n\n }\n\n\n /**\n\n\n * @dev Unpauses all token transfers.\n\n\n *\n\n\n * See {ERC20Pausable} and {Pausable-_unpause}.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - the caller must have the `PAUSER_ROLE`.\n\n\n */\n\n\n function unpause() public virtual {\n\n\n require(hasRole(PAUSER_ROLE, _msgSender()), \"ERC20PresetMinterPauser: must have pauser role to unpause\");\n\n\n _unpause();\n\n\n }\n\n\n \n\n\n function lock(address account , uint256 amount) public virtual{\n\n\n require(hasRole(MINTER_ROLE, _msgSender()), \"ERC20PresetMinterPauser: must have admin role to lock\");\n\n\n _lock(account,amount);\n\n\n }\n\n\n \n\n\n function release(address account , uint256 amount) public virtual{\n\n\n require(hasRole(MINTER_ROLE, _msgSender()), \"ERC20PresetMinterPauser: must have admin role to release\");\n\n\n _release(account,amount);\n\n\n }\n\n\n function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual override(ERC20, ERC20Pausable) {\n\n\n super._beforeTokenTransfer(from, to, amount);\n\n\n }\n\n\n}\n\nublic orderUSDValue;\n\n\n \n\n\n /*=========Structs and Initializer================\n\n\n --------------------------------*/ \n\n\n \n\n\n struct freeStorage{ //USER DEPOSIT / BORROW STRUCTURE\n\n\n uint amount;\n\n\n uint time;\n\n\n string wtoken;\n\n\n uint usdvalue;\n\n\n }\n\n\n \n\n\n struct matchedOrder{ //RUNNING OR MATCHED ORDERS IN THIS FORM\n\n\n address payable supplier;\n\n\n address payable borrower;\n\n\n uint time;\n\n\n uint expiryDate;\n\n\n uint duration;\n\n\n uint amount;\n\n\n uint usdvalue;\n\n\n uint yield;\n\n\n string wtoken;\n\n\n uint duesPaid;\n\n\n }\n\n\n\n\n\n struct Order{ // PENDING ORDERS IN THIS FORMAT\n\n\n address payable creator;\n\n\n uint duration;\n\n\n uint amount;\n\n\n uint yield;\n\n\n string wtoken;\n\n\n } \n\n\n \n\n\n struct User{\n\n\n uint totalDeposit; //USD VALUE OF TOTAL DEPOSIT AT DEPOSIT TIME\n\n\n uint totalBorrowed; //USD VALUE OF TOTAL DEPOSIT AT BORROW TIME\n\n\n freeStorage [] myDeposits; //DEPOSIT DATA\n\n\n freeStorage [] myBorrows; //BORROW DATA\n\n\n mapping(string => uint) deposits; //CURRENCY-WISE TOTAL DEPOSIT COUNT FULL VALUE \n\n\n mapping(string => uint) borrows; //CURRENCY-WISE TOTAL BORROW COUNT FULL VALUE\n\n\n uint64 [] borrowedOrders; //BORROWED ORDER - ORDER ID\n\n\n uint64 [] createdOrders; //CREATED ORDER - ORDER ID\n\n\n uint64 [] myOrders; //MATCHED ORDR - ORDER ID\n\n\n }\n\n\n \n\n\n function initializeAddress(address payable EMMaddress,address AbacusAddress, address payable Initaddress) external initializer{\n\n\n EMM = EcoMoneyManager(EMMaddress);\n\n\n abacus = IAbacusOracle(AbacusAddress); \n\n\n Init = EcoceliumInit(Initaddress);\n\n\n }\n\n\n\n\n\n /*============Main Functions===============\n\n\n Key Notes - \n\n\n 1) Always call main functions of Data Manager with Wrapped Token\n\n\n 2) _status signifies (status == Status.OPENCREATOR) operation - Returns True for Deposit Functions and False for Borrow Function\n\n\n 3) require(Init.friendlyaddress(msg.sender) ,\"Not Friendly Address\"); - This is mentioned in the EcoceliumInit Contract\n\n\n 4) FreePusher/Popper are for Liquidity Pools and push/pop order and matchOrder is the Order Matching Engine\n\n\n 5) Fetch Token Price Returns Values in 10**8\n\n\n 6) Amounts are without setting off Token Decimals\n\n\n ---------------------------------*/\n\n\n \n\n\n function freePusher(address userAddress, string memory token, uint _amount, bool _status) external { //_status signifies (status == Status.OPENCREATOR) operation\n\n\n require(Init.friendlyaddress(msg.sender) ,\"Not Friendly Address\");\n\n\n uint _usdValue = USDValue(_amount, token);\n\n\n freeStorage memory newStorage = freeStorage({ amount: _amount,\n\n\n time: now,\n\n\n wtoken: token,\n\n\n usdvalue: _usdValue });\n\n\n if(_status){\n\n\n users[userAddress].myDeposits.push(newStorage);\n\n\n users[userAddress].totalDeposit += _usdValue;\n\n\n users[userAddress].deposits[token] += _amount;\n\n\n } else {\n\n\n users[userAddress].myBorrows.push(newStorage);\n\n\n users[userAddress].totalBorrowed += _usdValue;\n\n\n users[userAddress].borrows[token] += _amount;\n\n\n }\n\n\n }\n\n\n \n\n\n function freePopper(address userAddress, string memory _tokenSymbol, uint _amount, bool _status) public returns (uint dues) {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n if(_status) { \n\n\n require(users[userAddress].deposits[_tokenSymbol]>=_amount, \"Insufficient Deposits\");\n\n\n users[userAddress].deposits[_tokenSymbol] -= _amount;\n\n\n } else {\n\n\n require(users[userAddress].borrows[_tokenSymbol]>=_amount,\"Insufficient Borrowings\");\n\n\n users[userAddress].borrows[_tokenSymbol] -= _amount;\n\n\n }\n\n\n uint amountLeft= _amount;\n\n\n freeStorage [] storage mystorage = _status ? users[userAddress].myDeposits : users[userAddress].myBorrows;\n\n\n for( uint i= mystorage.length-1; amountLeft >0 ; i--){\n\n\n if(keccak256(abi.encodePacked(mystorage[i].wtoken)) != keccak256(abi.encodePacked(_tokenSymbol))) { continue; }\n\n\n if (mystorage[i].amount <= amountLeft){\n\n\n amountLeft -= mystorage[i].amount;\n\n\n _status ? users[userAddress].totalDeposit -= mystorage[i].usdvalue : users[userAddress].totalBorrowed -= mystorage[i].usdvalue;\n\n\n dues+= calculateECOEarning(USDValue(mystorage[i].amount,_tokenSymbol), _tokenSymbol, mystorage[i].time);\n\n\n mystorage.pop(); \n\n\n } else {\n\n\n _status ? users[userAddress].totalDeposit -= (mystorage[i].amount-amountLeft)*mystorage[i].usdvalue : users[userAddress].totalBorrowed -= (mystorage[i].amount-amountLeft)*mystorage[i].usdvalue;\n\n\n mystorage[i].amount -= amountLeft;\n\n\n dues += calculateECOEarning(USDValue(amountLeft,_tokenSymbol), _tokenSymbol, mystorage[i].time);\n\n\n amountLeft = 0;\n\n\n }\n\n\n } \n\n\n _status ? users[userAddress].myDeposits = mystorage : users[userAddress].myBorrows = mystorage;\n\n\n }\n\n\n \n\n\n function pushOrder(address payable userAddress,string memory _tokenSymbol ,uint _amount,uint _duration, uint _yield, bool _status) internal returns (uint){\n\n\n (uint64 _orderId,uint newAmount,uint fee) = _ordersub(_amount, userAddress, _duration, _tokenSymbol);\n\n\n openOrderMap[_orderId] = Order({ \n\n\n creator : userAddress,\n\n\n duration : _duration,\n\n\n amount : newAmount,\n\n\n yield : _yield,\n\n\n wtoken : _tokenSymbol\n\n\n });\n\n\n if(_status) {\n\n\n orderStatus[_orderId] = Status.OPENCREATOR;\n\n\n users[userAddress].createdOrders.push(_orderId);\n\n\n } else {\n\n\n orderStatus[_orderId] = Status.OPENBORROW;\n\n\n users[userAddress].borrowedOrders.push(_orderId); }\n\n\n poolSorter(_orderId, _tokenSymbol, true);\n\n\n orderUSDValue[_orderId]=USDValue(_amount,_tokenSymbol);\n\n\n return fee;\n\n\n }\n\n\n \n\n\n function poolSorter(uint64 _orderId, string memory _tokenSymbol, bool _status) internal { //Status here signifies Insertion if True, and Deletion if false\n\n\n uint64 [] memory temp;\n\n\n bool task = false;\n\n\n bool pooltask = false;\n\n\n uint pid;\n\n\n if(orderStatus[_orderId] == Status.OPENCREATOR) { pid = (openOrderMap[_orderId].duration/6) - 1; \n\n\n } else if(orderStatus[_orderId] == Status.OPENBORROW) { pid = (openOrderMap[_orderId].duration/6) + 5; }\n\n\n poolindex[_tokenSymbol][pid]=0;\n\n\n\t if(orderpool[_tokenSymbol].length==0 && _status) { orderpool[_tokenSymbol][0] = _orderId; } else {\n\n\n for((uint i, uint j)=(0,0);i<orderpool[_tokenSymbol].length;(i++,j++)) {\n\n\n temp[j]=orderpool[_tokenSymbol][i];\n\n\n if(!task && _status && openOrderMap[temp[j]].yield > openOrderMap[_orderId].yield) { //Insertion Case\n\n\n temp[j]=_orderId; temp[++j]=orderpool[_tokenSymbol][i]; task = true;\n\n\n }else if(!task && !_status && _orderId == temp[j]){ //Deletion Case\n\n\n temp[j]=orderpool[_tokenSymbol][++i]; task = true;\n\n\n }\n\n\n if(uint(openOrderMap[temp[j]].duration/6) == uint(openOrderMap[_orderId].duration/6) && orderStatus[orderpool[_tokenSymbol][i]]==Status.OPENBORROW) { //Assigns updatePoolIndex with Highest Value of Borrow\n\n\n poolindex[_tokenSymbol][pid] = i;\n\n\n pooltask = true;\n\n\n } else if(uint(openOrderMap[temp[j]].duration/6) == uint(openOrderMap[_orderId].duration/6) && orderStatus[orderpool[_tokenSymbol][i]]==Status.OPENCREATOR && !pooltask) {\n\n\n poolindex[_tokenSymbol][pid] = i;\n\n\n pooltask = true;\n\n\n }\n\n\n }\n\n\n orderpool[_tokenSymbol] = temp;\n\n\n\t }\n\n\n }\n\n\n \n\n\n function matchOrder(address payable userAddress, string memory _tokenSymbol ,uint _amount,uint _duration,uint _yield, uint64 _orderId) internal {\n\n\n matchOrderMap[_orderId] = matchedOrder({ \n\n\n supplier : (orderStatus[_orderId] == Status.OPENBORROW) ? userAddress : openOrderMap[_orderId].creator,\n\n\n borrower : (orderStatus[_orderId] == Status.OPENCREATOR) ? userAddress : openOrderMap[_orderId].creator,\n\n\n time : now,\n\n\n expiryDate : now + _duration*(30 days),\n\n\n duration : _duration,\n\n\n amount : _amount,\n\n\n usdvalue : USDValue(_amount,_tokenSymbol),\n\n\n yield : _yield,\n\n\n wtoken : _tokenSymbol,\n\n\n duesPaid : 0\n\n\n });\n\n\n \n\n\n for((uint i,uint j)=(0,0); i<users[matchOrderMap[_orderId].supplier].createdOrders.length; (i++,j++)) {\n\n\n if(users[matchOrderMap[_orderId].supplier].createdOrders[i] == _orderId) { --j; continue; }\n\n\n users[matchOrderMap[_orderId].supplier].createdOrders[j] = users[matchOrderMap[_orderId].supplier].createdOrders[i];\n\n\n }\n\n\n for((uint i,uint j)=(0,0); i<users[matchOrderMap[_orderId].borrower].borrowedOrders.length; (i++,j++)) {\n\n\n if(users[matchOrderMap[_orderId].borrower].borrowedOrders[i] == _orderId) { continue; }\n\n\n users[matchOrderMap[_orderId].borrower].borrowedOrders[j] = users[matchOrderMap[_orderId].borrower].borrowedOrders[i];\n\n\n }\n\n\n delete openOrderMap[_orderId];\n\n\n poolSorter(_orderId, _tokenSymbol, false);\n\n\n orderStatus[_orderId]=Status.MATCHED;\n\n\n orderUSDValue[_orderId]=USDValue(_amount,_tokenSymbol);\n\n\n users[matchOrderMap[_orderId].supplier].myOrders.push(_orderId);\n\n\n users[matchOrderMap[_orderId].borrower].myOrders.push(_orderId);\n\n\n scheduleExpiry(_orderId);\n\n\n scheduleCheck(_orderId,matchOrderMap[_orderId].borrower,1);\n\n\n EMM.WithdrawManager(EMM.wtormap(_tokenSymbol), _amount, matchOrderMap[_orderId].borrower);\n\n\n Init.emitOrderCreated(userAddress,_duration,_yield,_amount,_tokenSymbol); \n\n\n }\n\n\n \n\n\n function newOrder(address payable userAddress,string memory _tokenSymbol ,uint _amount,uint _duration, uint _yield, bool _status) external {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n uint amountLeft= _amount;\n\n\n uint index;\n\n\n if(_status){\n\n\n index = poolindex[_tokenSymbol][(_duration/6)-1]; \n\n\n users[userAddress].deposits[_tokenSymbol] +=_amount;\n\n\n users[userAddress].totalDeposit += USDValue(_amount, _tokenSymbol);\n\n\n } else {\n\n\n index = poolindex[_tokenSymbol][(_duration/6)+5];\n\n\n users[userAddress].borrows[_tokenSymbol] +=_amount;\n\n\n users[userAddress].totalBorrowed += USDValue(_amount, _tokenSymbol);\n\n\n }\n\n\n while(amountLeft>0){\n\n\n if(index == 0) { pushOrder(userAddress, _tokenSymbol, _amount, _duration, _yield, _status); break; }\n\n\n Order memory iOrder = openOrderMap[orderpool[_tokenSymbol][index]];\n\n\n if((_status && _yield>iOrder.yield) || (!_status && _yield<iOrder.yield) || (_status)?(orderStatus[orderpool[_tokenSymbol][index]] == Status.OPENCREATOR):(orderStatus[orderpool[_tokenSymbol][index]] == Status.OPENBORROW)){\n\n\n pushOrder(userAddress, _tokenSymbol, _amount, _duration, _yield, _status);\n\n\n break;\n\n\n } else if(orderStatus[orderpool[_tokenSymbol][index]]== (_status ? Status.OPENBORROW : Status.OPENCREATOR)) {\n\n\n uint tduration = _duration > iOrder.duration ? _duration : iOrder.duration;\n\n\n uint tyield = _yield > iOrder.yield ? iOrder.yield : _yield;\n\n\n uint64 tID = orderpool[_tokenSymbol][index];\n\n\n if(iOrder.amount>=amountLeft) { \n\n\n if(iOrder.amount != amountLeft) {\n\n\n pushOrder(iOrder.creator, _tokenSymbol, iOrder.amount-amountLeft, iOrder.duration, iOrder.yield, !_status); }\n\n\n matchOrder(userAddress, _tokenSymbol, amountLeft, tduration, tyield, tID);\n\n\n amountLeft=0;\n\n\n } else {\n\n\n pushOrder(userAddress, _tokenSymbol, amountLeft- iOrder.amount, _duration, _yield, _status);\n\n\n matchOrder(userAddress, _tokenSymbol, amountLeft, tduration, tyield, tID);\n\n\n amountLeft -= openOrderMap[orderpool[_tokenSymbol][index]].amount; }\n\n\n }\n\n\n }\n\n\n }\n\n\n \n\n\n function orderExpired (uint64 _orderId) public {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n require (matchOrderMap[_orderId].expiryDate <= now);\n\n\n EMM.releaseWrappedToken(matchOrderMap[_orderId].supplier,matchOrderMap[_orderId].amount, matchOrderMap[_orderId].wtoken); \n\n\n EMM.burnWrappedFrom(matchOrderMap[_orderId].supplier,matchOrderMap[_orderId].amount, matchOrderMap[_orderId].wtoken); \n\n\n EMM.WithdrawManager(EMM.wtormap(matchOrderMap[_orderId].wtoken), matchOrderMap[_orderId].amount, matchOrderMap[_orderId].supplier); \n\n\n users[matchOrderMap[_orderId].supplier].totalDeposit -= matchOrderMap[_orderId].usdvalue;\n\n\n users[matchOrderMap[_orderId].borrower].totalBorrowed -= matchOrderMap[_orderId].usdvalue;\n\n\n orderStatus[_orderId] = Status.CLOSED;\n\n\n //Init.OrderExpired(_orderId,msgSender,orderMonthlyDue(_orderId,msgSender,_duration));\n\n\n } \n\n\n\n\n\n function payDue(uint64 _orderId,uint _duration,address msgSender) external returns (uint due){\n\n\n due = orderMonthlyDue(_orderId,_duration);\n\n\n uint fee = (due*Init.rewardFee())/100;\n\n\n EMM.DepositManager(Init.ECO(), due+fee, msgSender);\n\n\n Init.setOwnerFeeVault(Init.WRAP_ECO_SYMBOL(), fee);\n\n\n matchOrderMap[_orderId].duesPaid += 1;\n\n\n matchOrderMap[_orderId].duesPaid >= uint((now - matchOrderMap[_orderId].time)/30 days) ? Init.setUserLocked(msgSender,false) : Init.setUserLocked(msgSender,true);\n\n\n Init.emitDuePaid(_orderId,msgSender,orderMonthlyDue(_orderId,_duration));\n\n\n }\n\n\n\n\n\n function dueCheck(uint64 _orderId,address borrower,uint month) external returns(uint) {\n\n\n require (Init.friendlyaddress(msg.sender) && now >= matchOrderMap[_orderId].time + matchOrderMap[_orderId].duesPaid * 30 days);\n\n\n uint due = orderMonthlyDue(_orderId,1);\n\n\n EMM.mintECO(matchOrderMap[_orderId].supplier,due*(100-Init.rewardFee())/100);\n\n\n EMM.lockECO(matchOrderMap[_orderId].supplier,due*(100-Init.rewardFee())/100);\n\n\n if(matchOrderMap[_orderId].duesPaid < month && !Init.isRegistrar(borrower) && !Init.isUserLocked(borrower)){\n\n\n Init.setUserLocked(borrower,true);\n\n\n orderExpired(_orderId);\n\n\n } else {\n\n\n Init.emitDuePaid(_orderId,borrower,orderMonthlyDue(_orderId,month+1));\n\n\n scheduleCheck(_orderId,borrower,month+1);\n\n\n }\n\n\n }\n\n\n\n\n\n function scheduleExpiry(uint64 _orderId) internal{\n\n\n uint time = matchOrderMap[_orderId].expiryDate - matchOrderMap[_orderId].time;\n\n\n bytes memory data = abi.encodeWithSelector(bytes4(keccak256('orderExpired(uint256)')),_orderId);\n\n\n uint callCost = 300000*1e9 + abacus.callFee();\n\n\n abacus.scheduleFunc{value:callCost}(address(this), time ,data , abacus.callFee() ,300000 , 1e9 );\n\n\n } \n\n\n \n\n\n function scheduleCheck(uint _orderId,address borrower,uint month) internal{\n\n\n bytes memory data = abi.encodeWithSelector(bytes4(keccak256('dueCheck(uint256,address,uint256)')),_orderId,borrower,month);\n\n\n uint callCost = 300000*1e9 + abacus.callFee();\n\n\n abacus.scheduleFunc{value:callCost}(address(this), 30 days ,data , abacus.callFee() ,300000 , 1e9 );\n\n\n } \n\n\n \n\n\n function cancelOrder(uint64 _orderId) external{\n\n\n require(Init.friendlyaddress(msg.sender));\n\n\n if(orderStatus[_orderId]==Status.OPENCREATOR) {\n\n\n EMM.releaseWrappedToken(openOrderMap[_orderId].creator,openOrderMap[_orderId].amount, openOrderMap[_orderId].wtoken);\n\n\n EMM.burnWrappedFrom(openOrderMap[_orderId].creator,openOrderMap[_orderId].amount, openOrderMap[_orderId].wtoken); \n\n\n EMM.WithdrawManager(EMM.wtormap(openOrderMap[_orderId].wtoken),openOrderMap[_orderId].amount, openOrderMap[_orderId].creator); \n\n\n users[openOrderMap[_orderId].creator].deposits[openOrderMap[_orderId].wtoken] -=openOrderMap[_orderId].amount;\n\n\n users[openOrderMap[_orderId].creator].totalDeposit -= orderUSDValue[_orderId];\n\n\n for((uint i,uint j)=(0,0); i<users[openOrderMap[_orderId].creator].createdOrders.length; (i++,j++)) {\n\n\n if(users[openOrderMap[_orderId].creator].createdOrders[i] == _orderId) { --j; continue; }\n\n\n users[openOrderMap[_orderId].creator].createdOrders[j] = users[openOrderMap[_orderId].creator].createdOrders[i];\n\n\n }\n\n\n } else if(orderStatus[_orderId]==Status.OPENBORROW){\n\n\n users[openOrderMap[_orderId].creator].borrows[openOrderMap[_orderId].wtoken] -=openOrderMap[_orderId].amount;\n\n\n users[openOrderMap[_orderId].creator].totalBorrowed -= orderUSDValue[_orderId];\n\n\n for((uint i,uint j)=(0,0); i<users[openOrderMap[_orderId].creator].borrowedOrders.length; (i++,j++)) {\n\n\n if(users[openOrderMap[_orderId].creator].borrowedOrders[i] == _orderId) { continue; }\n\n\n users[openOrderMap[_orderId].creator].borrowedOrders[j] = users[openOrderMap[_orderId].creator].borrowedOrders[i];\n\n\n }\n\n\n }\n\n\n poolSorter(_orderId, openOrderMap[_orderId].wtoken,false);\n\n\n delete openOrderMap[_orderId];\n\n\n if(orderUSDValue[_orderId] > 0) { delete orderUSDValue[_orderId]; }\n\n\n orderStatus[_orderId] = Status.CLOSED;\n\n\n }\n\n\n \n\n\n /*==============Helpers============\n\n\n ---------------------------------*/ \n\n\n \n\n\n function USDValue(uint amount, string memory _token) public view returns (uint usdvalue) {\n\n\n usdvalue = amount*fetchTokenPrice(_token)/(10**8)/(10**uint(wERC20(EMM.getwTokenAddress(_token)).decimals()));\n\n\n }\n\n\n \n\n\n function orderMonthlyDue(uint64 _orderId, uint _duration) public view returns(uint due){\n\n\n orderStatus[_orderId] == Status.MATCHED ? due = USDValue (matchOrderMap[_orderId].amount, matchOrderMap[_orderId].wtoken) * matchOrderMap[_orderId].yield * _duration*30 days*fetchTokenPrice(Init.WRAP_ECO_SYMBOL())/3153600000/(10**8) : due = 0;\n\n\n }\n\n\n \n\n\n function fetchTokenPrice(string memory _tokenSymbol) public view returns(uint){ //Put any Token Wrapped or Direct\n\n\n \tuint response = uint(abacus.getJobResponse(EMM.getFetchId(_tokenSymbol))[0]);\n\n\n \treturn response > 0 ? response : 0;\n\n\n }\n\n\n \n\n\n /*function issueReward(address userAddress, string memory _tokenSymbol, uint time, uint tokenUsdValue) internal {\n\n\n uint reward = calculateECOEarning(tokenUsdValue, _tokenSymbol, time);\n\n\n EMM.mintECO(userAddress, reward);\n\n\n }*/\n\n\n \n\n\n function calculateECOEarning(uint usdvalue, string memory _tokenSymbol, uint time) private view returns (uint){\n\n\n uint _amount = usdvalue*(10**16)/fetchTokenPrice(Init.WRAP_ECO_SYMBOL());\n\n\n uint reward = (_amount * Init.slabRateDeposit(_tokenSymbol) * (now - time))/3153600000; //decimal from Abacus is setoff by decimal from Eco\n\n\n return reward;\n\n\n }\n\n\n \n\n\n function getECOEarnings(address userAddress) public view returns (uint){\n\n\n uint ecobalance;\n\n\n for(uint i=0; i<users[userAddress].myDeposits.length; i++) {\n\n\n ecobalance += calculateECOEarning(users[userAddress].myDeposits[i].usdvalue, users[userAddress].myDeposits[i].wtoken, users[userAddress].myDeposits[i].time);\n\n\n }\n\n\n\t for(uint i=0; i<users[userAddress].myBorrows.length; i++) {\n\n\n ecobalance -= calculateECOEarning(users[userAddress].myBorrows[i].usdvalue, users[userAddress].myBorrows[i].wtoken, users[userAddress].myBorrows[i].time);\n\n\n }\n\n\n if(ecobalance > EMM.ecoWithdrawls(userAddress)) { return ecobalance - EMM.ecoWithdrawls(userAddress); } else {\n\n\n return uint(0);\n\n\n }\n\n\n }\n\n\n \n\n\n function _ordersub(uint amount,address userAddress,uint _duration,string memory _tokenSymbol) internal view returns (uint64, uint, uint){\n\n\n uint newAmount = amount - (amount*Init.tradeFee())/100;\n\n\n uint fee = (amount*Init.tradeFee())/100;\n\n\n uint64 _orderId = uint64(uint(keccak256(abi.encodePacked(userAddress,_tokenSymbol,_duration,now))));\n\n\n return (_orderId,newAmount,fee);\n\n\n }\n\n\n \n\n\n function getUserDepositsbyToken(address userAddress, string memory wtoken) public view returns(uint) {\n\n\n return users[userAddress].deposits[wtoken];\n\n\n }\n\n\n \n\n\n function getUserBorrowedOrderbyToken(address userAddress, string memory wtoken) public view returns(uint) {\n\n\n return users[userAddress].borrows[wtoken];\n\n\n }\n\n\n \n\n\n function getUserBorrowed(address userAddress) public view returns(uint) {\n\n\n return users[userAddress].totalBorrowed;\n\n\n }\n\n\n \n\n\n function getUserBorrowedOrder(address userAddress) public view returns (uint64 [] memory) {\n\n\n return users[userAddress].borrowedOrders;\n\n\n }\n\n\n \n\n\n function getUserDepositOrder(address userAddress) public view returns (uint64 [] memory) {\n\n\n return users[userAddress].createdOrders;\n\n\n }\n\n\n \n\n\n function getUserMatchOrder(address userAddress) public view returns (uint64 [] memory) {\n\n\n return users[userAddress].myOrders;\n\n\n }\n\n\n \n\n\n function getbuyPower(address userAddress) public view returns (uint buyPower){\n\n\n if(Init.isRegistrar(userAddress)) { return (10**30); }\n\n\n if(Init.isUserLocked(userAddress)) { return 0; }\n\n\n if(users[userAddress].totalBorrowed > 0) { \n\n\n return users[userAddress].totalDeposit - ((users[userAddress].totalDeposit*Init.CDSpercent())/100) - users[userAddress].totalBorrowed;\n\n\n } else {\n\n\n return users[userAddress].totalDeposit;\n\n\n }\n\n\n }\n\n\n \n\n\n function getOrderIds(string memory wtoken) public view returns (uint64 [] memory orderIds) {\n\n\n return orderpool[wtoken];\n\n\n }\n\n\n \n\n\n function updatePoolIndex(uint index, string memory wtoken, uint value) external {\n\n\n if(Init.friendlyaddress(msg.sender) == true) {\n\n\n poolindex[wtoken][index]= value;\n\n\n }\n\n\n }\n\n\n \n\n\n /*function deleteUserData(address userAddress) external {\n\n\n if(Init.friendlyaddress(msg.sender)==true) {\n\n\n delete users[userAddress];\n\n\n }\n\n\n }*/\n\n\n \n\n\n}\n\n\n\n\n\ncontract Ecocelium is Initializable{\n\n\n\n\n\n address public owner;\n\n\n address payable EMMAddress;\n\n\n IAbacusOracle abacus;\n\n\n EcoMoneyManager EMM;\n\n\n EcoceliumDataManager EDM;\n\n\n EcoceliumInit Init;\n\n\n \n\n\n function initialize(address _owner,address payable EMMaddress,address payable AbacusAddress,address EDMaddress, address payable Initaddress)public payable initializer {\n\n\n owner = _owner;\n\n\n EMM = EcoMoneyManager(EMMaddress);\n\n\n EMMAddress = EMMaddress;\n\n\n abacus = IAbacusOracle(AbacusAddress);//0x323f81D9F57d2c3d5555b14d90651aCDc03F9d52\n\n\n EDM = EcoceliumDataManager(EDMaddress);\n\n\n Init = EcoceliumInit(Initaddress);\n\n\n }\n\n\n \n\n\n function changeOwner(address _owner) public{\n\n\n require(msg.sender==owner);\n\n\n owner = _owner;\n\n\n }\n\n\n \n\n\n func\n\npdateContracts() public{\n\n\n require(msg.sender==owner);\n\n\n EMM = EcoMoneyManager(Init.MONEYMANAGER());\n\n\n abacus = IAbacusOracle(Init.ABACUS());\n\n\n EDM = EcoceliumDataManager(Init.DATAMANAGER());\n\n\n }\n\n\n \n\n\n /*===========Main functions============\n\n\n -------------------------------------*/ \n\n\n\n\n\n function Deposit(string memory rtoken, uint _amount) external payable {\n\n\n address _msgSender = msg.sender;\n\n\n string memory wtoken = EMM.getWrapped(rtoken);\n\n\n _deposit(rtoken, _amount, _msgSender, wtoken);\n\n\n EDM.freePusher(_msgSender, wtoken, _amount, true);\n\n\n EMM.mintWrappedToken(_msgSender, _amount, wtoken);\n\n\n EMM.lockWrappedToken(_msgSender, _amount,wtoken);\n\n\n }\n\n\n \n\n\n function _deposit(string memory rtoken,uint _amount, address msgSender, string memory wtoken) internal {\n\n\n require(EMM.getwTokenAddress(wtoken) != address(0),\"not supported\");\n\n\n if(keccak256(abi.encodePacked(rtoken)) == keccak256(abi.encodePacked(Init.ETH_SYMBOL()))) { \n\n\n require(msg.value >= _amount);\n\n\n EMM.DepositManager{value:msg.value}(rtoken, _amount, msgSender);\n\n\n }else {\n\n\n EMM.DepositManager(rtoken, _amount, msgSender); }\n\n\n Init.emitSwap(msgSender,rtoken,wtoken,_amount);\n\n\n }\n\n\n \n\n\n function depositAndOrder(address payable userAddress,string memory rtoken ,uint _amount,uint _duration,uint _yield) external payable {\n\n\n require(msg.sender == userAddress);\n\n\n string memory wtoken = EMM.getWrapped(rtoken);\n\n\n _deposit(rtoken, _amount, userAddress, wtoken);\n\n\n EMM.mintWrappedToken(userAddress, _amount, wtoken);\n\n\n EMM.lockWrappedToken(userAddress, _amount,wtoken);\n\n\n EDM.newOrder(userAddress, EMM.getWrapped(rtoken), _amount, _duration, _yield, true);\n\n\n }\n\n\n \n\n\n function createOrder(address payable userAddress,string memory _tokenSymbol ,uint _amount,uint _duration,uint _yield) external payable {\n\n\n require(msg.sender == userAddress);\n\n\n require(_duration>=6, \"Duration should be atleast 6 Months\");\n\n\n string memory wtoken = EMM.getWrapped(_tokenSymbol);\n\n\n require(EDM.getUserDepositsbyToken(userAddress, wtoken) >= _amount, \"Insufficient Balance\"); \n\n\n uint ecoEarnings = EDM.freePopper(userAddress, wtoken , _amount, true);\n\n\n if(ecoEarnings > EMM.ecoWithdrawls(userAddress)) {\n\n\n \t\tecoEarnings-=EMM.ecoWithdrawls(userAddress);\n\n\n \t\tEMM.adjustEcoEarning(userAddress, EMM.ecoWithdrawls(userAddress));\n\n\n \t\tEMM.WithdrawManager(Init.ECO(), ecoEarnings, userAddress);\n\n\n \t} else {\n\n\n \t\tEMM.adjustEcoEarning(userAddress, ecoEarnings);\t}\n\n\n EDM.newOrder(userAddress, wtoken, _amount, _duration, _yield, true); \n\n\n }\n\n\n \n\n\n function getAggEcoBalance(address userAddress) public view returns(uint) {\n\n\n return wERC20(EMM.getwTokenAddress(Init.WRAP_ECO_SYMBOL())).balanceOf(userAddress) + EDM.getECOEarnings(userAddress);\n\n\n }\n\n\n \n\n\n function borrowOrder(address userAddress, string memory rtoken, uint amount, uint duration, uint yield) public {//Rewrite this part\n\n\n require(isWithdrawEligible(userAddress, rtoken, amount));\n\n\n EDM.newOrder(msg.sender,rtoken, amount,duration,yield,false);\n\n\n }\n\n\n \n\n\n function payDueOrder(uint64 _orderId,uint _duration) external {\n\n\n EDM.payDue(_orderId,_duration,msg.sender);\n\n\n }\n\n\n \n\n\n function clearBorrow(string memory rtoken, uint _amount) external payable{\n\n\n address msgSender = msg.sender;\n\n\n string memory wtoken = EMM.getWrapped(rtoken);\n\n\n uint dues = EDM.freePopper(msgSender, wtoken, _amount, false);\n\n\n\t EMM.DepositManager(Init.ECO(), dues, msgSender);\n\n\n if(keccak256(abi.encodePacked(rtoken)) == keccak256(abi.encodePacked(Init.ETH_SYMBOL()))) { \n\n\n require(msg.value == _amount);\n\n\n EMM.DepositManager{value:_amount}(rtoken, _amount, msgSender);\n\n\n }else {\n\n\n EMM.DepositManager(rtoken, _amount, msgSender); }\n\n\n }\n\n\n \n\n\n function Borrow(uint _amount, string memory _tokenSymbol) public {\n\n\n require(isWithdrawEligible(msg.sender, _tokenSymbol, _amount));\n\n\n EDM.freePusher(msg.sender, EMM.getWrapped(_tokenSymbol), _amount,false);\n\n\n EMM.WithdrawManager(_tokenSymbol, _amount, msg.sender);\n\n\n }\n\n\n \n\n\n function SwapWrapToWrap(string memory token1,string memory token2, uint token1amount) external returns(uint) {\n\n\n address payable msgSender = msg.sender;\n\n\n uint token2price = fetchTokenPrice(token2);\n\n\n uint token2amount = EDM.USDValue(token1amount,token1)*(100-Init.swapFee())*(10**uint(wERC20(EMM.getwTokenAddress(token2)).decimals()))*(10**8)/token2price/100;\n\n\n EMM.w2wswap(msgSender, token1, token1amount, token2amount, token2);\n\n\n uint ecoEarnings = EDM.freePopper(msgSender,token1,token1amount,true);\n\n\n\t if(ecoEarnings>0) {\n\n\n \t if(ecoEarnings > EMM.ecoWithdrawls(msgSender)) {\n\n\n \t\tecoEarnings-=EMM.ecoWithdrawls(msgSender);\n\n\n \t\tif(EMM.ecoWithdrawls(msgSender) > 0) { EMM.adjustEcoEarning(msgSender, EMM.ecoWithdrawls(msgSender)); }\n\n\n \t\tEMM.WithdrawManager(Init.ECO(), ecoEarnings, msgSender);\n\n\n \t} else {\n\n\n \t\tEMM.adjustEcoEarning(msgSender, ecoEarnings);\t}\n\n\n \t}\n\n\n\t Init.setOwnerFeeVault(token1, token1amount*Init.swapFee()/100);\n\n\n EDM.freePusher(msgSender, token2,token2amount,true);\n\n\n Init.emitSwap(msgSender,token1,token2,token2amount);\n\n\n return token2amount;\n\n\n }\n\n\n \n\n\n function cancelOrder(uint64 _orderId) public{\n\n\n (address creator,,,,) = EDM.openOrderMap(_orderId);\n\n\n require(msg.sender==creator);\n\n\n EDM.cancelOrder(_orderId);\n\n\n }\n\n\n \n\n\n receive() external payable { }\n\n\n\n\n\n /*==============Helpers============\n\n\n ---------------------------------*/ \n\n\n \n\n\n function orderMonthlyDue(uint64 _orderId,uint _duration) public view returns(uint){\n\n\n return EDM.orderMonthlyDue(_orderId,_duration);\n\n\n }\n\n\n \n\n\n function updateFees(uint _swapFee,uint _tradeFee,uint _rewardFee) public{\n\n\n require(msg.sender == owner);\n\n\n Init.updateFees(_swapFee,_tradeFee,_rewardFee);\n\n\n }\n\n\n \n\n\n function getOrderIds(string memory wtoken) public view returns(uint64 [] memory){\n\n\n return EDM.getOrderIds(wtoken);\n\n\n }\n\n\n \n\n\n function fetchTokenPrice(string memory _tokenSymbol) public view returns(uint){\n\n\n return EDM.fetchTokenPrice(_tokenSymbol);\n\n\n }\n\n\n \n\n\n function Withdraw(string memory to, uint _amount) external {\n\n\n address payable msgSender = msg.sender;\n\n\n string memory from = EMM.getWrapped(to);\n\n\n require(!Init.isUserLocked(msgSender), \"Your Address is Locked Pay Dues\");\n\n\n if( EDM.getUserBorrowed(msgSender) > 0) { require(isWithdrawEligible(msgSender, to, _amount) , \"Not Eligible for Withdraw\"); }\n\n\n if(keccak256(abi.encodePacked(to)) == keccak256(abi.encodePacked(Init.ECO()))) {\n\n\n require( getAggEcoBalance(msgSender) >= _amount,\"Insufficient Balance\");\n\n\n if(EDM.getUserDepositsbyToken(msgSender, from) >=_amount) { \n\n\n _withdraw(msgSender, from, _amount, to); } else {\n\n\n uint amountLeft = _amount - EDM.getUserDepositsbyToken(msgSender, from);\n\n\n if(EDM.getUserDepositsbyToken(msgSender, from) > 0){ _withdraw(msgSender, from, _amount, to);\t}\n\n\n EMM.redeemEcoEarning(msgSender,amountLeft); }\n\n\n } else { \n\n\n require(EDM.getUserDepositsbyToken(msgSender, from)>=_amount,\"Insufficient balance\");\n\n\n _withdraw(msgSender, from, _amount, to);\n\n\n }\n\n\n Init.emitSwap(msgSender,from,to,_amount);\n\n\n }\n\n\n \n\n\n function _withdraw(address payable msgSender, string memory from, uint amount, string memory to) internal {\n\n\n EMM.releaseWrappedToken(msgSender,amount, from);\n\n\n EMM.burnWrappedFrom(msgSender, amount, from);\n\n\n Init.setOwnerFeeVault(to,(amount*Init.rewardFee())/100);\n\n\n uint ecoEarnings = EDM.freePopper(msgSender,from,amount, true);\n\n\n \tif(ecoEarnings>0) {\n\n\n \t if(ecoEarnings > EMM.ecoWithdrawls(msgSender)) {\n\n\n \t\tecoEarnings-=EMM.ecoWithdrawls(msgSender);\n\n\n \t\tif(EMM.ecoWithdrawls(msgSender) > 0) { EMM.adjustEcoEarning(msgSender, EMM.ecoWithdrawls(msgSender)); }\n\n\n \t\tEMM.WithdrawManager(Init.ECO(), ecoEarnings, msgSender);\n\n\n \t} else {\n\n\n \t\tEMM.adjustEcoEarning(msgSender, ecoEarnings);\t}\n\n\n \t}\n\n\n uint newAmount = amount - (amount*Init.rewardFee())/100;\n\n\n EMM.WithdrawManager(to,newAmount, msgSender);\n\n\n }\n\n\n \n\n\n function isWithdrawEligible(address userAddress, string memory to, uint amount) public view returns (bool Eligible){\n\n\n return (EDM.getbuyPower(userAddress) > EDM.USDValue(amount,EMM.getWrapped(to)));\n\n\n } \n\n\n}\n\n\n\n\n\n \n\n\n\n\ncontract EcoceliumInit is Initializable {\n\n\n\n\n\n address payable owner;\n\n\n address payable public MONEYMANAGER;\n\n\n address payable public DATAMANAGER;\n\n\n address payable public ECOCELIUM;\n\n\n address payable public ABACUS;\n\n\n string public WRAP_ECO_SYMBOL;\n\n\n string public ECO;\n\n\n string public ETH_SYMBOL;\n\n\n string public WRAP_ETH_SYMBOL;\n\n\n uint public swapFee;\n\n\n uint public rewardFee;\n\n\n uint public tradeFee;\n\n\n uint public CDSpercent;\n\n\n string [] rtokenlist;\n\n\n string [] wtokenlist;\n\n\n mapping (string => uint) public rcurrencyID;\n\n\n mapping (string => uint) public wcurrencyID;\n\n\n mapping (address => bool) public isRegistrar;\n\n\n mapping (address => bool) public isUserLocked;\n\n\n mapping (string => uint ) public ownerFeeVault;\n\n\n mapping (string => uint) public slabRateDeposit;\n\n\n mapping (address => bool) public friendlyaddress;\n\n\n mapping (address => address) public SponsorAddress;\n\n\n mapping (address => uint) public usertreasuryearnings;\n\n\n \n\n\n event OrderCreated(\n\n\n address userAddress,\n\n\n uint duration,\n\n\n uint yield,\n\n\n uint amount,\n\n\n string token\n\n\n );\n\n\n \n\n\n event Swap(\n\n\n address userAddress,\n\n\n string from,\n\n\n string to,\n\n\n uint amount\n\n\n );\n\n\n \n\n\n event Borrowed(\n\n\n uint64 orderId,\n\n\n address borrower,\n\n\n uint amount,\n\n\n uint duration\n\n\n );\n\n\n \n\n\n event Deposit(\n\n\n address userAddress,\n\n\n string token,\n\n\n uint tokenAmount,\n\n\n uint collateralValue\n\n\n );\n\n\n \n\n\n event DuePaid(\n\n\n uint64 orderId,\n\n\n address borrower,\n\n\n uint amount\n\n\n );\n\n\n \n\n\n event WrapTokenCreated(\n\n\n address TokenAddress,\n\n\n string TokenName,\n\n\n string TokenSymbol,\n\n\n uint Decimals\n\n\n );\n\n\n \n\n\n receive() payable external { } \n\n\n \n\n\n function initializeAddress(address payable _owner) public initializer {\n\n\n friendlyaddress[_owner] = true;\n\n\n owner = _owner;\n\n\n }\n\n\n \n\n\n function addRealCurrency(string memory rtoken) public{\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n if(rcurrencyID[rtoken] == 0) {\n\n\n rtokenlist.push(rtoken);\n\n\n rcurrencyID[rtoken] = rtokenlist.length; }\n\n\n }\n\n\n \n\n\n function addWrapCurrency (string memory wtoken) public{\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n if(wcurrencyID[wtoken] == 0) {\n\n\n wtokenlist.push(wtoken);\n\n\n wcurrencyID[wtoken] = wtokenlist.length; }\n\n\n }\n\n\n \n\n\n function setSlabRate(string memory WToken, uint rate) public {\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n slabRateDeposit[WToken] = rate;\n\n\n }\n\n\n \n\n\n function setUserLocked(address userAddress, bool value) public {\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n isUserLocked[userAddress] = value;\n\n\n }\n\n\n \n\n\n function setFriendlyAddress(address Address) public {\n\n\n (msg.sender == owner,\"not owner\");\n\n\n friendlyaddress[Address] = true;\n\n\n }\n\n\n \n\n\n function addRegistrar(address _registrar) public{\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n isRegistrar[_registrar] = true;\n\n\n }\n\n\n \n\n\n function setOwnerFeeVault(string memory add,uint value) public {\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n ownerFeeVault[add] += value; \n\n\n }\n\n\n \n\n\n function emitOrderCreated(address userAddress, uint _duration, uint _yield, uint newAmount,string memory _tokenSymbol) public {\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n emit OrderCreated(userAddress,_duration,_yield,newAmount,_tokenSymbol); \n\n\n }\n\n\n \n\n\n function emitSwap(address msgSender, string memory from, string memory to,uint _amount) public {\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n emit Swap(msgSender,from,to,_amount);\n\n\n }\n\n\n \n\n\n function emitBorrowed(uint64 _orderId, address msgSender, uint _amount,uint _duration) public {\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n emit Borrowed(_orderId,msgSender,_amount,_duration);\n\n\n }\n\n\n \n\n\n function emitWrappedCreated(address tokenAddress,string memory name, string memory symbol,uint8 decimals) public {\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n emit WrapTokenCreated(tokenAddress,name,symbol,decimals); \n\n\n }\n\n\n \n\n\n function emitDeposit(address msgSender, string memory _tokenSymbol, uint amount, uint tokenUsdValue) public {\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n emit Deposit(msgSender,_tokenSymbol,amount,tokenUsdValue);\n\n\n }\n\n\n \n\n\n function emitDuePaid(uint64 _orderId, address msgSender, uint due) public {\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n emit DuePaid(_orderId,msgSender,due);\n\n\n }\n\n\n \n\n\n function setCONSTSYMBOLS(string[4] memory _symbolCONST) public {\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n WRAP_ECO_SYMBOL = _symbolCONST[0];\n\n\n ECO = _symbolCONST[1];\n\n\n ETH_SYMBOL = _symbolCONST[2];\n\n\n WRAP_ETH_SYMBOL = _symbolCONST[3];\n\n\n }\n\n\n \n\n\n function updateFees(uint _swapFee,uint _tradeFee,uint _rewardFee) public{\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n (swapFee,tradeFee,rewardFee) = (_swapFee,_tradeFee,_rewardFee);\n\n\n }\n\n\n \n\n\n function setCSDpercent(uint percent) public {\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n CDSpercent = percent;\n\n\n }\n\n\n \n\n\n function changeAbacusaddress(address payable Abacusaddress) public{\n\n\n require(msg.sender == owner,\"not owner\");\n\n\n ABACUS = Abacusaddress;\n\n\n } \n\n\n \n\n\n function changeEcoceliumaddress(address payable Ecocelium) public{\n\n\n require(msg.sender == owner,\"not owner\");\n\n\n ECOCELIUM = Ecocelium;\n\n\n } \n\n\n \n\n\n function changeDMaddress(address payable DMAddress) public{\n\n\n require(msg.sender == owner,\"not owner\");\n\n\n DATAMANAGER = DMAddress;\n\n\n }\n\n\n \n\n\n function changeMMaddress(address payable MMaddress) public{\n\n\n require(msg.sender == owner,\"not owner\");\n\n\n MONEYMANAGER = MMaddress;\n\n\n }\n\n\n \n\n\n function changeOwner(address payable _owner) public{\n\n\n require(msg.sender==owner);\n\n\n owner = _owner;\n\n\n }\n\n\n \n\n\n function setSponsor(address userAddress, address _sponsorAddress) external {\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n SponsorAddress[userAddress] = _sponsorAddress;\n\n\n }\n\n\n \n\n\n function updateTreasuryEarnings(address userAddress, uint _amount) public {\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n usertreasuryearnings[userAddress] = _amount;\n\n\n }\n\n\n}\n\ncontract EcoMoneyManager is Initializable {\n\n\n \n\n\n\n\n\n \n\n\n \n\n\n EcoceliumInit Init;\n\n\n address public owner;\n\n\n address [] public TokenAddresses;\n\n\n address [] public wTokenAddresses;\n\n\n mapping (string => address) rTokens;\n\n\n mapping (string => string) public wtormap;\n\n\n mapping (string => string) public rTokensTowToken;\n\n\n mapping (string => TokenConfig) wTokens;\n\n\n mapping (address => uint) public ecoWithdrawls;\n\n\n mapping (string => uint) public WGains;\n\n\n mapping (string => uint) public WLoss;\n\n\n \n\n\n receive() payable external { }\n\n\n \n\n\n struct TokenConfig{\n\n\n address tokenAddress;\n\n\n uint64 fetchId;\n\n\n }\n\n\n \n\n\n function initialize(address _owner, address payable _Init) public initializer{\n\n\n owner = _owner;\n\n\n Init = EcoceliumInit(_Init);\n\n\n }\n\n\n \n\n\n function updateAdminAddress(address adminAddress) public {\n\n\n require(msg.sender == owner);\n\n\n for(uint i = 0;i<wTokenAddresses.length;i++){\n\n\n wERC20(wTokenAddresses[i]).changeAdmin(adminAddress);\n\n\n }\n\n\n }\n\n\n \n\n\n function addTokenWithAddress(address tokenAddress) public {\n\n\n require(msg.sender == owner);\n\n\n ERC20Basic token = ERC20Basic(tokenAddress);\n\n\n require(getrTokenAddress(token.symbol())== address(0),\"token exist\");\n\n\n rTokens[token.symbol()] = tokenAddress; \n\n\n TokenAddresses.push(tokenAddress);\n\n\n } \n\n\n\n\n\n function createWrapToken(string memory name,string memory symbol,uint64 _fetchId, uint8 decimal, string memory wrapOf) public returns(address TokenAddress){\n\n\n require(msg.sender == owner);\n\n\n wERC20 token = new wERC20(name,symbol,decimal, address(this), address(this)); \n\n\n rTokensTowToken[wrapOf] = symbol;\n\n\n TokenAddresses.push(address(token));\n\n\n wTokenAddresses.push(address(token));\n\n\n wTokens[symbol] = TokenConfig({\n\n\n tokenAddress:address(token),\n\n\n fetchId : _fetchId\n\n\n });\n\n\n Init.emitWrappedCreated(address(token),name,symbol,token.decimals()); \n\n\n return address(token);\n\n\n } \n\n\n \n\n\n function changeOwner(address _owner) public{\n\n\n require(owner == msg.sender);\n\n\n owner =_owner;\n\n\n } \n\n\n \n\n\n function updatertoken (string memory WToken, string memory RToken) public {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n wtormap[WToken] = RToken;\n\n\n }\n\n\n \n\n\n function getwTokenAddress(string memory symbol) public view returns(address){\n\n\n return wTokens[symbol].tokenAddress;\n\n\n }\n\n\n \n\n\n function getFetchId(string memory symbol ) public view returns(uint64){\n\n\n if( wTokens[symbol].tokenAddress == address(0)) {\n\n\n symbol = rTokensTowToken[symbol];\n\n\n }\n\n\n return wTokens[symbol].fetchId;\n\n\n }\n\n\n \n\n\n function getrTokenAddress(string memory symbol) public view returns(address){\n\n\n return rTokens[symbol];\n\n\n }\n\n\n \n\n\n function getTokenAddresses() public view returns(address[] memory){\n\n\n return TokenAddresses;\n\n\n }\n\n\n \n\n\n function getWrapped(string memory symbol) public view returns(string memory){\n\n\n return rTokensTowToken[symbol];\n\n\n }\n\n\n \n\n\n function getTokenID(string memory symbol) public view returns(uint){\n\n\n for(uint i=0; i< TokenAddresses.length; i++) {\n\n\n if(TokenAddresses[i] == wTokens[symbol].tokenAddress) {\n\n\n return i;\n\n\n }\n\n\n }\n\n\n }\n\n\n \n\n\n function releaseWrappedToken (address _userAddress, uint amount, string memory WToken) public {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n wERC20(getwTokenAddress(WToken)).release(_userAddress,amount);\n\n\n }\n\n\n \n\n\n function mintWrappedToken (address _userAddress, uint amount, string memory WToken) public {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n wERC20(getwTokenAddress(WToken)).mint(_userAddress,amount);\n\n\n }\n\n\n \n\n\n function lockWrappedToken (address _userAddress, uint amount, string memory WToken) public {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n wERC20(getwTokenAddress(WToken)).lock(_userAddress,amount);\n\n\n }\n\n\n \n\n\n function burnWrappedFrom(address userAddress, uint amount, string memory WToken) public {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n wERC20(getwTokenAddress(WToken)).burnFrom(userAddress,amount);\n\n\n }\n\n\n \n\n\n function mintECO(address userAddress, uint amount) public {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n wERC20(getwTokenAddress(Init.WRAP_ECO_SYMBOL())).mint(userAddress,amount);\n\n\n }\n\n\n \n\n\n function lockECO(address userAddress, uint amount) public {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n wERC20(getwTokenAddress(Init.WRAP_ECO_SYMBOL())).lock(userAddress,amount);\n\n\n }\n\n\n \n\n\n function releaseECO(address userAddress, uint amount) public {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n wERC20(getwTokenAddress(Init.WRAP_ECO_SYMBOL())).release(userAddress,amount);\n\n\n }\n\n\n \n\n\n function burnECOFrom(address userAddress, uint amount) public {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n wERC20(getwTokenAddress(Init.WRAP_ECO_SYMBOL())).burnFrom(userAddress,amount);\n\n\n }\n\n\n \n\n\n function DepositManager(string memory _rtoken, uint amount, address userAddress) public payable {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n if(Init.rcurrencyID(_rtoken) == Init.rcurrencyID(Init.ETH_SYMBOL()))\n\n\n { require(msg.value >= amount,\"Invalid Amount\"); }\n\n\n else {ERC20Basic rtoken = ERC20Basic(getrTokenAddress(_rtoken));\n\n\n require(rtoken.allowance(userAddress, address(this)) >= amount,\"set allowance\");\n\n\n rtoken.transferFrom(userAddress,address(this),amount);}\n\n\n }\n\n\n \n\n\n function WithdrawManager(string memory _rtoken, uint amount, address payable userAddress) public {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n if(Init.rcurrencyID(_rtoken) == Init.rcurrencyID(Init.ETH_SYMBOL()))\n\n\n { userAddress.transfer(amount); }\n\n\n else {\n\n\n ERC20Basic rtoken = ERC20Basic(getrTokenAddress(_rtoken));\n\n\n rtoken.transfer(userAddress,amount);}\n\n\n }\n\n\n \n\n\n function redeemEcoEarning(address payable userAddress, uint amount) public {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n ecoWithdrawls[userAddress] = ecoWithdrawls[userAddress] + amount;\n\n\n WithdrawManager(Init.ECO(), amount, userAddress);\n\n\n }\n\n\n\n\n\n function adjustEcoEarning(address userAddress, uint amount) public {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n ecoWithdrawls[userAddress] = ecoWithdrawls[userAddress] - amount;\n\n\n }\n\n\n \n\n\n function updateFetchID (string memory wtoken, uint64 _fetchID) external {\n\n\n require(owner == msg.sender);\n\n\n wTokens[wtoken].fetchId = _fetchID;\n\n\n }\n\n\n \n\n\n function w2wswap (address msgSender, string memory token1, uint token1amount, uint token2amount, string memory token2) external {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n releaseWrappedToken(msgSender, token1amount, token1);\n\n\n burnWrappedFrom(msgSender,token1amount,token1);\n\n\n WGains[token1]=token1amount;\n\n\n mintWrappedToken(msgSender,token2amount, token2);\n\n\n lockWrappedToken(msgSender, token2amount, token2);\n\n\n WLoss[token2]=token2amount;\n\n\n }\n\n\n \n\n\n function updateWrapAddress (string memory wtoken, address wAddress) external {\n\n\n require(owner == msg.sender);\n\n\n wTokens[wtoken].tokenAddress = wAddress;\n\n\n }\n\n\n \n\n\n function updatewtoken (string memory RToken, string memory WToken) public {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n rTokensTowToken[RToken] = WToken;\n\n\n }\n\n\n}\n"},"bytecode":{"kind":"string","value":"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`msg.sender`\n\n\n /// @param _to The address of the recipient\n\n\n /// @param _value The amount of token to be transferred\n\n\n /// @return Whether the transfer was successful or not\n\n\n function transfer(address _to, uint256 _value) public returns (bool success);\n\n\n\n\n\n /// @notice send `_value` token to `_to` from `_from` on the condition it is approved by `_from`\n\n\n /// @param _from The address of the sender\n\n\n /// @param _to The address of the recipient\n\n\n /// @param _value The amount of token to be transferred\n\n\n /// @return Whether the transfer was successful or not\n\n\n function transferFrom(address _from, address _to, uint256 _value) public returns (bool success);\n\n\n\n\n\n /// @notice `msg.sender` approves `_spender` to spend `_value` tokens\n\n\n /// @param _spender The address of the account able to transfer the tokens\n\n\n /// @param _value The amount of tokens to be approved for transfer\n\n\n /// @return Whether the approval was successful or not\n\n\n function approve(address _spender, uint256 _value) public returns (bool success);\n\n\n\n\n\n /// @param _owner The address of the account owning tokens\n\n\n /// @param _spender The address of the account able to transfer the tokens\n\n\n /// @return Amount of remaining tokens allowed to spent\n\n\n function allowance(address _owner, address _spender) public view returns (uint256 remaining);\n\n\n\n\n\n // solhint-disable-next-line no-simple-event-func-name\n\n\n event Transfer(address indexed _from, address indexed _to, uint256 _value);\n\n\n event Approval(address indexed _owner, address indexed _spender, uint256 _value);\n\n\n}\n\ncontract duos is EIP20Interface {\n\n\n\n\n\n uint256 constant private MAX_UINT256 = 2**256 - 1;\n\n\n mapping (address => uint256) public balances;\n\n\n mapping (address => mapping (address => uint256)) public allowed;\n\n\n /*\n\n\n NOTE:\n\n\n The following variables are OPTIONAL vanities. One does not have to include them.\n\n\n They allow one to customise the token contract & in no way influences the core functionality.\n\n\n Some wallets/interfaces might not even bother to look at this information.\n\n\n */\n\n\n string public name; //fancy name: eg Simon Bucks\n\n\n uint8 public decimals; //How many decimals to show.\n\n\n string public symbol; //An identifier: eg SBX\n\n\n\n\n\n function duos(\n\n\n uint256 _initialAmount,\n\n\n string _tokenName,\n\n\n uint8 _decimalUnits,\n\n\n string _tokenSymbol\n\n\n ) public {\n\n\n balances[msg.sender] = _initialAmount; // Give the creator all initial tokens\n\n\n totalSupply = _initialAmount; // Update total supply\n\n\n name = _tokenName; // Set the name for display purposes\n\n\n decimals = _decimalUnits; // Amount of decimals for display purposes\n\n\n symbol = _tokenSymbol; // Set the symbol for display purposes\n\n\n }\n\n\n\n\n\n function transfer(address _to, uint256 _value) public returns (bool success) {\n\n\n require(balances[msg.sender] >= _value);\n\n\n balances[msg.sender] -= _value;\n\n\n balances[_to] += _value;\n\n\n emit Transfer(msg.sender, _to, _value); //solhint-disable-line indent, no-unused-vars\n\n\n return true;\n\n\n }\n\n\n\n\n\n function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {\n\n\n uint256 allowance = allowed[_from][msg.sender];\n\n\n require(balances[_from] >= _value && allowance >= _value);\n\n\n balances[_to] += _value;\n\n\n balances[_from] -= _value;\n\n\n if (allowance < MAX_UINT256) {\n\n\n allowed[_from][msg.sender] -= _value;\n\n\n }\n\n\n emit Transfer(_from, _to, _value); //solhint-disable-line indent, no-unused-vars\n\n\n return true;\n\n\n }\n\n\n\n\n\n function balanceOf(address _owner) public view returns (uint256 balance) {\n\n\n return balances[_owner];\n\n\n }\n\n\n\n\n\n function approve(address _spender, uint256 _value) public returns (bool success) {\n\n\n allowed[msg.sender][_spender] = _value;\n\n\n emit Approval(msg.sender, _spender, _value); //solhint-disable-line indent, no-unused-vars\n\n\n return true;\n\n\n }\n\n\n\n\n\n function allowance(address _owner, address _spender) public view returns (uint256 remaining) {\n\n\n return allowed[_owner][_spender];\n\n\n 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0":{"kind":"number","value":682,"string":"682"},"address":{"kind":"string","value":"0xf1949c405B7c134DC37FFF5637CD1c305c23081a"},"source_code":{"kind":"string","value":"pragma solidity 0.6.10;\n\ninterface IERC20 {\n\n /**\n\n * @dev Returns the amount of tokens in existence.\n\n */\n\n function totalSupply() external view returns (uint256);\n\n\n\n /**\n\n * @dev Returns the amount of tokens owned by `account`.\n\n */\n\n function balanceOf(address account) external view returns (uint256);\n\n\n\n /**\n\n * @dev Moves `amount` tokens from the caller's account to `recipient`.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * Emits a {Transfer} event.\n\n */\n\n function transfer(address recipient, uint256 amount) external returns (bool);\n\n\n\n /**\n\n * @dev Returns the remaining number of tokens that `spender` will be\n\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n\n * zero by default.\n\n *\n\n * This value changes when {approve} or {transferFrom} are called.\n\n */\n\n function allowance(address owner, address spender) external view returns (uint256);\n\n\n\n /**\n\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n\n * that someone may use both the old and the new allowance by unfortunate\n\n * transaction ordering. One possible solution to mitigate this race\n\n * condition is to first reduce the spender's allowance to 0 and set the\n\n * desired value afterwards:\n\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n\n *\n\n * Emits an {Approval} event.\n\n */\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n\n\n /**\n\n * @dev Moves `amount` tokens from `sender` to `recipient` using the\n\n * allowance mechanism. `amount` is then deducted from the caller's\n\n * allowance.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * Emits a {Transfer} event.\n\n */\n\n function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);\n\n\n\n /**\n\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n\n * another (`to`).\n\n *\n\n * Note that `value` may be zero.\n\n */\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n\n\n /**\n\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n\n * a call to {approve}. `value` is the new allowance.\n\n */\n\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n}\n\ninterface notify {\n\n\n function notifyRewardAmount(uint256 reward) external;\n\n\n}\n\ncontract UTap {\n\n\n IERC20 public Token;\n\n\n notify public Pool;\n\n\n uint256 public blocklock;\n\n\n address public bucket;\n\n\n\n\n\n constructor(\n\n\n IERC20 Tokent,\n\n\n address buckt,\n\n\n notify Poolt\n\n\n ) public {\n\n\n Token = Tokent;\n\n\n bucket = buckt;\n\n\n Pool = Poolt;\n\n\n }\n\n\n\n\n\n function tap() public {\n\n\n require(tx.origin == msg.sender, \"UTap: External accounts only\");\n\n\n require(blocklock <= now, \"block\");\n\n\n Token.transfer(bucket, Token.balanceOf(address(this)) / 50);\n\n\n blocklock = now + 7 days;\n\n\n Pool.notifyRewardAmount(Token.balanceOf(address(this)) / 50);\n\n\n 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0":{"kind":"number","value":683,"string":"683"},"address":{"kind":"string","value":"0xf1A9589880DbF393F32A5b2d5a0054Fa10385074"},"source_code":{"kind":"string","value":"pragma solidity 0.7.4;\n\ninterface IArbitrable {\n\n /**\n\n * @dev To be raised when a ruling is given.\n\n * @param _arbitrator The arbitrator giving the ruling.\n\n * @param _disputeID ID of the dispute in the Arbitrator contract.\n\n * @param _ruling The ruling which was given.\n\n */\n\n event Ruling(IArbitrator indexed _arbitrator, uint256 indexed _disputeID, uint256 _ruling);\n\n\n\n /**\n\n * @dev Give a ruling for a dispute. Must be called by the arbitrator.\n\n * The purpose of this function is to ensure that the address calling it has the right to rule on the contract.\n\n * @param _disputeID ID of the dispute in the Arbitrator contract.\n\n * @param _ruling Ruling given by the arbitrator. Note that 0 is reserved for \"Not able/wanting to make a decision\".\n\n */\n\n function rule(uint256 _disputeID, uint256 _ruling) external;\n\n}\n\ninterface IArbitrator {\n\n enum DisputeStatus {Waiting, Appealable, Solved}\n\n\n\n /**\n\n * @dev To be emitted when a dispute is created.\n\n * @param _disputeID ID of the dispute.\n\n * @param _arbitrable The contract which created the dispute.\n\n */\n\n event DisputeCreation(uint256 indexed _disputeID, IArbitrable indexed _arbitrable);\n\n\n\n /**\n\n * @dev To be emitted when a dispute can be appealed.\n\n * @param _disputeID ID of the dispute.\n\n * @param _arbitrable The contract which created the dispute.\n\n */\n\n event AppealPossible(uint256 indexed _disputeID, IArbitrable indexed _arbitrable);\n\n\n\n /**\n\n * @dev To be emitted when the current ruling is appealed.\n\n * @param _disputeID ID of the dispute.\n\n * @param _arbitrable The contract which created the dispute.\n\n */\n\n event AppealDecision(uint256 indexed _disputeID, IArbitrable indexed _arbitrable);\n\n\n\n /**\n\n * @dev Create a dispute. Must be called by the arbitrable contract.\n\n * Must be paid at least arbitrationCost(_extraData).\n\n * @param _choices Amount of choices the arbitrator can make in this dispute.\n\n * @param _extraData Can be used to give additional info on the dispute to be created.\n\n * @return disputeID ID of the dispute created.\n\n */\n\n function createDispute(uint256 _choices, bytes calldata _extraData) external payable returns (uint256 disputeID);\n\n\n\n /**\n\n * @dev Compute the cost of arbitration. It is recommended not to increase it often, as it can be highly time and gas consuming for the arbitrated contracts to cope with fee augmentation.\n\n * @param _extraData Can be used to give additional info on the dispute to be created.\n\n * @return cost Amount to be paid.\n\n */\n\n function arbitrationCost(bytes calldata _extraData) external view returns (uint256 cost);\n\n\n\n /**\n\n * @dev Appeal a ruling. Note that it has to be called before the arbitrator contract calls rule.\n\n * @param _disputeID ID of the dispute to be appealed.\n\n * @param _extraData Can be used to give extra info on the appeal.\n\n */\n\n function appeal(uint256 _disputeID, bytes calldata _extraData) external payable;\n\n\n\n /**\n\n * @dev Compute the cost of appeal. It is recommended not to increase it often, as it can be higly time and gas consuming for the arbitrated contracts to cope with fee augmentation.\n\n * @param _disputeID ID of the dispute to be appealed.\n\n * @param _extraData Can be used to give additional info on the dispute to be created.\n\n * @return cost Amount to be paid.\n\n */\n\n function appealCost(uint256 _disputeID, bytes calldata _extraData) external view returns (uint256 cost);\n\n\n\n /**\n\n * @dev Compute the start and end of the dispute's current or next appeal period, if possible. If not known or appeal is impossible: should return (0, 0).\n\n * @param _disputeID ID of the dispute.\n\n * @return start The start of the period.\n\n * @return end The end of the period.\n\n */\n\n function appealPeriod(uint256 _disputeID) external view returns (uint256 start, uint256 end);\n\n\n\n /**\n\n * @dev Return the status of a dispute.\n\n * @param _disputeID ID of the dispute to rule.\n\n * @return status The status of the dispute.\n\n */\n\n function disputeStatus(uint256 _disputeID) external view returns (DisputeStatus status);\n\n\n\n /**\n\n * @dev Return the current ruling of a dispute. This is useful for parties to know if they should appeal.\n\n * @param _disputeID ID of the dispute.\n\n * @return ruling The ruling which has been given or the one which will be given if there is no appeal.\n\n */\n\n function currentRuling(uint256 _disputeID) external view returns (uint256 ruling);\n\n}\n\ninterface IEvidence {\n\n /**\n\n * @dev To be emitted when meta-evidence is submitted.\n\n * @param _metaEvidenceID Unique identifier of meta-evidence.\n\n * @param _evidence A link to the meta-evidence JSON.\n\n */\n\n event MetaEvidence(uint256 indexed _metaEvidenceID, string _evidence);\n\n\n\n /**\n\n * @dev To be raised when evidence is submitted. Should point to the resource (evidences are not to be stored on chain due to gas considerations).\n\n * @param _arbitrator The arbitrator of the contract.\n\n * @param _evidenceGroupID Unique identifier of the evidence group the evidence belongs to.\n\n * @param _party The address of the party submiting the evidence. Note that 0x0 refers to evidence not submitted by any party.\n\n * @param _evidence A URI to the evidence JSON file whose name should be its keccak256 hash followed by .json.\n\n */\n\n event Evidence(\n\n IArbitrator indexed _arbitrator,\n\n uint256 indexed _evidenceGroupID,\n\n address indexed _party,\n\n string _evidence\n\n );\n\n\n\n /**\n\n * @dev To be emitted when a dispute is created to link the correct meta-evidence to the disputeID.\n\n * @param _arbitrator The arbitrator of the contract.\n\n * @param _disputeID ID of the dispute in the Arbitrator contract.\n\n * @param _metaEvidenceID Unique identifier of meta-evidence.\n\n * @param _evidenceGroupID Unique identifier of the evidence group that is linked to this dispute.\n\n */\n\n event Dispute(\n\n IArbitrator indexed _arbitrator,\n\n uint256 indexed _disputeID,\n\n uint256 _metaEvidenceID,\n\n uint256 _evidenceGroupID\n\n );\n\n}\n\nlibrary CappedMath {\n\n uint constant private UINT_MAX = 2**256 - 1;\n\n\n\n /**\n\n * @dev Adds two unsigned integers, returns 2^256 - 1 on overflow.\n\n */\n\n function addCap(uint _a, uint _b) internal pure returns (uint) {\n\n uint c = _a + _b;\n\n return c >= _a ? c : UINT_MAX;\n\n }\n\n\n\n /**\n\n * @dev Subtracts two integers, returns 0 on underflow.\n\n */\n\n function subCap(uint _a, uint _b) internal pure returns (uint) {\n\n if (_b > _a)\n\n return 0;\n\n else\n\n return _a - _b;\n\n }\n\n\n\n /**\n\n * @dev Multiplies two unsigned integers, returns 2^256 - 1 on overflow.\n\n */\n\n function mulCap(uint _a, uint _b) internal pure returns (uint) {\n\n // Gas optimization: this is cheaper than requiring '_a' not being zero, but the\n\n // benefit is lost if '_b' is also tested.\n\n // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522\n\n if (_a == 0)\n\n return 0;\n\n\n\n uint c = _a * _b;\n\n return c / _a == _b ? c : UINT_MAX;\n\n }\n\n}\n\nabstract contract Context {\n\n function _msgSender() internal view virtual returns (address payable) {\n\n return msg.sender;\n\n }\n\n\n\n function _msgData() internal view virtual returns (bytes memory) {\n\n this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691\n\n return msg.data;\n\n }\n\n}\n\nlibrary SafeMath {\n\n /**\n\n * @dev Returns the addition of two unsigned integers, reverting on\n\n * overflow.\n\n *\n\n * Counterpart to Solidity's `+` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Addition cannot overflow.\n\n */\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the subtraction of two unsigned integers, reverting on\n\n * overflow (when the result is negative).\n\n *\n\n * Counterpart to Solidity's `-` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Subtraction cannot overflow.\n\n */\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return sub(a, b, \"SafeMath: subtraction overflow\");\n\n }\n\n\n\n /**\n\n * @dev Returns the subtraction of two unsigned integers, reverting with custom message on\n\n * overflow (when the result is negative).\n\n *\n\n * Counterpart to Solidity's `-` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Subtraction cannot overflow.\n\n */\n\n function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the multiplication of two unsigned integers, reverting on\n\n * overflow.\n\n *\n\n * Counterpart to Solidity's `*` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Multiplication cannot overflow.\n\n */\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n\n // benefit is lost if 'b' is also tested.\n\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n\n if (a == 0) {\n\n return 0;\n\n }\n\n\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the integer division of two unsigned integers. Reverts on\n\n * division by zero. The result is rounded towards zero.\n\n *\n\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n\n * uses an invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return div(a, b, \"SafeMath: division by zero\");\n\n }\n\n\n\n /**\n\n * @dev Returns the integer division of two unsigned integers. Reverts with custom message on\n\n * division by zero. The result is rounded towards zero.\n\n *\n\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n\n * uses an invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n\n * Reverts when dividing by zero.\n\n *\n\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n\n * invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return mod(a, b, \"SafeMath: modulo by zero\");\n\n }\n\n\n\n /**\n\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n\n * Reverts with custom message when dividing by zero.\n\n *\n\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n\n * invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n require(b != 0, errorMessage);\n\n return a % b;\n\n }\n\n}\n\ninterface IERC20 {\n\n /**\n\n * @dev Returns the amount of tokens in existence.\n\n */\n\n function totalSupply() external view returns (uint256);\n\n\n\n /**\n\n * @dev Returns the amount of tokens owned by `account`.\n\n */\n\n function balanceOf(address account) external view returns (uint256);\n\n\n\n /**\n\n * @dev Moves `amount` tokens from the caller's account to `recipient`.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * Emits a {Transfer} event.\n\n */\n\n function transfer(address recipient, uint256 amount) external returns (bool);\n\n\n\n /**\n\n * @dev Returns the remaining number of tokens that `spender` will be\n\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n\n * zero by default.\n\n *\n\n * This value changes when {approve} or {transferFrom} are called.\n\n */\n\n function allowance(address owner, address spender) external view returns (uint256);\n\n\n\n /**\n\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n\n * that someone may use both the old and the new allowance by unfortunate\n\n * transaction ordering. One possible solution to mitigate this race\n\n * condition is to first reduce the spender's allowance to 0 and set the\n\n * desired value afterwards:\n\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n\n *\n\n * Emits an {Approval} event.\n\n */\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n\n\n /**\n\n * @dev Moves `amount` tokens from `sender` to `recipient` using the\n\n * allowance mechanism. `amount` is then deducted from the caller's\n\n * allowance.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * Emits a {Transfer} event.\n\n */\n\n function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);\n\n\n\n /**\n\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n\n * another (`to`).\n\n *\n\n * Note that `value` may be zero.\n\n */\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n\n\n /**\n\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n\n * a call to {approve}. `value` is the new allowance.\n\n */\n\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n}\n\nlibrary Address {\n\n /**\n\n * @dev Returns true if `account` is a contract.\n\n *\n\n * [IMPORTANT]\n\n * ====\n\n * It is unsafe to assume that an address for which this function returns\n\n * false is an externally-owned account (EOA) and not a contract.\n\n *\n\n * Among others, `isContract` will return false for the following\n\n * types of addresses:\n\n *\n\n * - an externally-owned account\n\n * - a contract in construction\n\n * - an address where a contract will be created\n\n * - an address where a contract lived, but was destroyed\n\n * ====\n\n */\n\n function isContract(address account) internal view returns (bool) {\n\n // According to EIP-1052, 0x0 is the value returned for not-yet created accounts\n\n // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned\n\n // for accounts without code, i.e. `keccak256('')`\n\n bytes32 codehash;\n\n bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;\n\n // solhint-disable-next-line no-inline-assembly\n\n assembly { codehash := extcodehash(account) }\n\n return (codehash != accountHash && codehash != 0x0);\n\n }\n\n\n\n /**\n\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n\n * `recipient`, forwarding all available gas and reverting on errors.\n\n *\n\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n\n * imposed by `transfer`, making them unable to receive funds via\n\n * `transfer`. {sendValue} removes this limitation.\n\n *\n\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n\n *\n\n * IMPORTANT: because control is transferred to `recipient`, care must be\n\n * taken to not create reentrancy vulnerabilities. Consider using\n\n * {ReentrancyGuard} or the\n\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n\n */\n\n function sendValue(address payable recipient, uint256 amount) internal {\n\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n\n\n // solhint-disable-next-line avoid-low-level-calls, avoid-call-value\n\n (bool success, ) = recipient.call{ value: amount }(\"\");\n\n require(success, \"Address: unable to send value, recipient may have reverted\");\n\n }\n\n\n\n /**\n\n * @dev Performs a Solidity function call using a low level `call`. A\n\n * plain`call` is an unsafe replacement for a function call: use this\n\n * function instead.\n\n *\n\n * If `target` reverts with a revert reason, it is bubbled up by this\n\n * function (like regular Solidity function calls).\n\n *\n\n * Returns the raw returned data. To convert to the expected return value,\n\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n\n *\n\n * Requirements:\n\n *\n\n * - `target` must be a contract.\n\n * - calling `target` with `data` must not revert.\n\n *\n\n * _Available since v3.1._\n\n */\n\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n\n return functionCall(target, data, \"Address: low-level call failed\");\n\n }\n\n\n\n /**\n\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n\n * `errorMessage` as a fallback revert reason when `target` reverts.\n\n *\n\n * _Available since v3.1._\n\n */\n\n function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {\n\n return _functionCallWithValue(target, data, 0, errorMessage);\n\n }\n\n\n\n /**\n\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n\n * but also transferring `value` wei to `target`.\n\n *\n\n * Requirements:\n\n *\n\n * - the calling contract must have an ETH balance of at least `value`.\n\n * - the called Solidity function must be `payable`.\n\n *\n\n * _Available since v3.1._\n\n */\n\n function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n\n }\n\n\n\n /**\n\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n\n *\n\n * _Available since v3.1._\n\n */\n\n function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {\n\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n\n return _functionCallWithValue(target, data, value, errorMessage);\n\n }\n\n\n\n function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {\n\n require(isContract(target), \"Address: call to non-contract\");\n\n\n\n // solhint-disable-next-line avoid-low-level-calls\n\n (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);\n\n if (success) {\n\n return returndata;\n\n } else {\n\n // Look for revert reason and bubble it up if present\n\n if (returndata.length > 0) {\n\n // The easiest way to bubble the revert reason is using memory via assembly\n\n\n\n // solhint-disable-next-line no-inline-assembly\n\n assembly {\n\n let returndata_size := mload(returndata)\n\n revert(add(32, returndata), returndata_size)\n\n }\n\n } else {\n\n revert(errorMessage);\n\n }\n\n }\n\n }\n\n}\n\ncontract Linguo is IArbitrable, IEvidence {\n\n using CappedMath for uint256;\n\n\n\n /* *** Contract variables *** */\n\n uint8 public constant VERSION_ID = 0; // Value that represents the version of the contract. The value is incremented each time the new version is deployed. Range for LinguoETH: 0-127, LinguoToken: 128-255.\n\n uint256 public constant MULTIPLIER_DIVISOR = 10000; // Divisor parameter for multipliers.\n\n uint256 private constant NOT_PAYABLE_VALUE = (2**256 - 2) / 2; // A value depositors won't be able to pay.\n\n\n\n enum Status {Created, Assigned, AwaitingReview, DisputeCreated, Resolved}\n\n\n\n enum Party {\n\n None, // Party that is mapped with a 0 dispute ruling.\n\n Translator, // Party performing translation task.\n\n Challenger // Party challenging translated text in the review period.\n\n }\n\n\n\n // Arrays of 3 elements in the Task and Round structs map to the parties. Index \"0\" is not used, \"1\" is used for the translator and \"2\" for the challenger.\n\n struct Task {\n\n uint256 submissionTimeout; // Time in seconds allotted for submitting a translation. The end of this period is considered a deadline.\n\n uint256 minPrice; // Minimum price for the translation. When the task is created it has this minimum price that gradually increases such that it reaches the maximum price at the deadline.\n\n uint256 maxPrice; // Maximum price for the translation and also the value that must be deposited by the requester.\n\n Status status; // Status of the task.\n\n uint256 lastInteraction; // The time of the last action performed on the task. Note that lastInteraction is updated only during timeout-related actions such as the creation of the task and the submission of the translation.\n\n address payable requester; // The party requesting the translation.\n\n uint256 requesterDeposit; // The deposit requester makes when creating the task. Once the task is assigned this deposit will be partially reimbursed and its value replaced by the task price.\n\n uint256 sumDeposit; // The sum of the deposits of the translator and the challenger, if any. This value (minus arbitration fees) will be paid to the party that wins the dispute.\n\n address payable[3] parties; // Translator and challenger of the task.\n\n uint256 disputeID; // The ID of the dispute created in the arbitrator contract.\n\n Round[] rounds; // Tracks each appeal round of a dispute.\n\n uint256 ruling; // Ruling given to the dispute of the task by the arbitrator.\n\n }\n\n\n\n struct Round {\n\n uint256[3] paidFees; // Tracks the fees paid by each side in this round.\n\n bool[3] hasPaid; // True when the side has fully paid its fee. False otherwise.\n\n uint256 feeRewards; // Sum of reimbursable fees and stake rewards available to the parties that made contributions to the side that ultimately wins a dispute.\n\n mapping(address => uint256[3]) contributions; // Maps contributors to their contributions for each side.\n\n }\n\n\n\n address public governor = msg.sender; // The governor of the contract.\n\n IArbitrator public immutable arbitrator; // The address of the ERC-792 Arbitrator.\n\n bytes public arbitratorExtraData; // Extra data to allow creating a dispute on the arbitrator.\n\n uint256 public reviewTimeout; // Time in seconds, during which the submitted translation can be challenged.\n\n // All multipliers below are in basis points.\n\n uint256 public translationMultiplier; // Multiplier for calculating the value of the deposit translator must pay to self-assign a task.\n\n uint256 public challengeMultiplier; // Multiplier for calculating the value of the deposit challenger must pay to challenge a translation.\n\n uint256 public sharedStakeMultiplier; // Multiplier for calculating the appeal fee that must be paid by the submitter in the case where there isn't a winner and loser (e.g. when the arbitrator ruled \"refuse to arbitrate\").\n\n uint256 public winnerStakeMultiplier; // Multiplier for calculating the appeal fee of the party that won the previous round.\n\n uint256 public loserStakeMultiplier; // Multiplier for calculating the appeal fee of the party that lost the previous round.\n\n\n\n Task[] public tasks; // Stores all created tasks.\n\n\n\n mapping(uint256 => uint256) public disputeIDtoTaskID; // Maps a disputeID to its respective task.\n\n\n\n /* *** Events *** */\n\n\n\n /** @dev To be emitted when a new task is created.\n\n * @param _taskID The ID of the newly created task.\n\n * @param _requester The address that created the task.\n\n * @param _timestamp When the task was created.\n\n */\n\n event TaskCreated(uint256 indexed _taskID, address indexed _requester, uint256 _timestamp);\n\n\n\n /** @dev To be emitted when a translator assigns a task to himself.\n\n * @param _taskID The ID of the assigned task.\n\n * @param _translator The address that was assigned to the task.\n\n * @param _price The task price at the moment it was assigned.\n\n * @param _timestamp When the task was assigned.\n\n */\n\n event TaskAssigned(uint256 indexed _taskID, address indexed _translator, uint256 _price, uint256 _timestamp);\n\n\n\n /** @dev To be emitted when a translation is submitted.\n\n * @param _taskID The ID of the respective task.\n\n * @param _translator The address that performed the translation.\n\n * @param _translatedText A URI to the translated text.\n\n * @param _timestamp When the translation was submitted.\n\n */\n\n event TranslationSubmitted(\n\n uint256 indexed _taskID,\n\n address indexed _translator,\n\n string _translatedText,\n\n uint256 _timestamp\n\n );\n\n\n\n /** @dev To be emitted when a translation is challenged.\n\n * @param _taskID The ID of the respective task.\n\n * @param _challenger The address of the challenger.\n\n * @param _timestamp When the task was challenged.\n\n */\n\n event TranslationChallenged(uint256 indexed _taskID, address indexed _challenger, uint256 _timestamp);\n\n\n\n /** @dev To be emitted when a task is resolved, either by the translation being accepted, the requester being reimbursed or a dispute being settled.\n\n * @param _taskID The ID of the respective task.\n\n * @param _reason Short description of what caused the task to be solved. One of: 'translation-accepted' | 'requester-reimbursed' | 'dispute-settled'\n\n * @param _timestamp When the task was resolved.\n\n */\n\n event TaskResolved(uint256 indexed _taskID, string _reason, uint256 _timestamp);\n\n\n\n /** @dev To be emitted when someone contributes to the appeal process.\n\n * @param _taskID The ID of the respective task.\n\n * @param _party The party which received the contribution.\n\n * @param _contributor The address of the contributor.\n\n * @param _amount The amount contributed.\n\n */\n\n event AppealContribution(uint256 indexed _taskID, Party _party, address indexed _contributor, uint256 _amount);\n\n\n\n /** @dev To be emitted when the appeal fees of one of the parties are fully funded.\n\n * @param _taskID The ID of the respective task.\n\n * @param _party The party that is fully funded.\n\n */\n\n event HasPaidAppealFee(uint256 indexed _taskID, Party _party);\n\n\n\n /* *** Modifiers *** */\n\n modifier onlyGovernor() {\n\n require(msg.sender == governor, \"Only governor is allowed to perform this.\");\n\n _;\n\n }\n\n\n\n /** @dev Constructor.\n\n * @param _arbitrator The arbitrator of the contract.\n\n * @param _arbitratorExtraData Extra data for the arbitrator.\n\n * @param _reviewTimeout Time in seconds during which a translation can be challenged.\n\n * @param _translationMultiplier Multiplier for calculating translator's deposit. In basis points.\n\n * @param _challengeMultiplier Multiplier for calculating challenger's deposit. In basis points.\n\n * @param _sharedStakeMultiplier Multiplier of the appeal cost that submitter must pay for a round when there is no winner/loser in the previous round. In basis points.\n\n * @param _winnerStakeMultiplier Multiplier of the appeal cost that the winner has to pay for a round. In basis points.\n\n * @param _loserStakeMultiplier Multiplier of the appeal cost that the loser has to pay for a round. In basis points.\n\n */\n\n constructor(\n\n IArbitrator _arbitrator,\n\n bytes memory _arbitratorExtraData,\n\n uint256 _reviewTimeout,\n\n uint256 _translationMultiplier,\n\n uint256 _challengeMultiplier,\n\n uint256 _sharedStakeMultiplier,\n\n uint256 _winnerStakeMultiplier,\n\n uint256 _loserStakeMultiplier\n\n ) public {\n\n arbitrator = _arbitrator;\n\n arbitratorExtraData = _arbitratorExtraData;\n\n reviewTimeout = _reviewTimeout;\n\n translationMultiplier = _translationMultiplier;\n\n challengeMultiplier = _challengeMultiplier;\n\n sharedStakeMultiplier = _sharedStakeMultiplier;\n\n winnerStakeMultiplier = _winnerStakeMultiplier;\n\n loserStakeMultiplier = _loserStakeMultiplier;\n\n }\n\n\n\n // ******************** //\n\n // * Governance * //\n\n // ******************** //\n\n\n\n /** @dev Changes the governor of this contract.\n\n * @param _governor A new governor.\n\n */\n\n function changeGovernor(address _governor) public onlyGovernor {\n\n governor = _governor;\n\n }\n\n\n\n /** @dev Changes the time allocated for the review phase.\n\n * @param _reviewTimeout A new value of the time allotted for reviewing a translation. In seconds.\n\n */\n\n function changeReviewTimeout(uint256 _reviewTimeout) public onlyGovernor {\n\n reviewTimeout = _reviewTimeout;\n\n }\n\n\n\n /** @dev Changes the multiplier for translators' deposit.\n\n * @param _translationMultiplier A new value of the multiplier for calculating translator's deposit. In basis points.\n\n */\n\n function changeTranslationMultiplier(uint256 _translationMultiplier) public onlyGovernor {\n\n translationMultiplier = _translationMultiplier;\n\n }\n\n\n\n /** @dev Changes the multiplier for challengers' deposit.\n\n * @param _challengeMultiplier A new value of the multiplier for calculating challenger's deposit. In basis points.\n\n */\n\n function changeChallengeMultiplier(uint256 _challengeMultiplier) public onlyGovernor {\n\n challengeMultiplier = _challengeMultiplier;\n\n }\n\n\n\n /** @dev Changes the percentage of arbitration fees that must be paid by parties as a fee stake if there was no winner and loser in the previous round.\n\n * @param _sharedStakeMultiplier A new value of the multiplier of the appeal cost in case where there was no winner/loser in previous round. In basis point.\n\n */\n\n function changeSharedStakeMultiplier(uint256 _sharedStakeMultiplier) public onlyGovernor {\n\n sharedStakeMultiplier = _sharedStakeMultiplier;\n\n }\n\n\n\n /** @dev Changes the percentage of arbitration fees that must be paid as a fee stake by the party that won the previous round.\n\n * @param _winnerStakeMultiplier A new value of the multiplier of the appeal cost that the winner of the previous round has to pay. In basis points.\n\n */\n\n function changeWinnerStakeMultiplier(uint256 _winnerStakeMultiplier) public onlyGovernor {\n\n winnerStakeMultiplier = _winnerStakeMultiplier;\n\n }\n\n\n\n /** @dev Changes the percentage of arbitration fees that must be paid as a fee stake by the party that lost the previous round.\n\n * @param _loserStakeMultiplier A new value for the multiplier of the appeal cost that the party that lost the previous round has to pay. In basis points.\n\n */\n\n function changeLoserStakeMultiplier(uint256 _loserStakeMultiplier) public onlyGovernor {\n\n loserStakeMultiplier = _loserStakeMultiplier;\n\n }\n\n\n\n // **************************** //\n\n // * Modifying the state * //\n\n // **************************** //\n\n\n\n /** @dev Creates a task based on provided details. Requires a value of maximum price to be deposited.\n\n * @param _deadline The deadline for the translation to be completed.\n\n * @param _minPrice A minimum price of the translation. In wei.\n\n * @param _metaEvidence A URI of a meta-evidence object for task submission.\n\n * @return taskID The ID of the created task.\n\n */\n\n function createTask(\n\n uint256 _deadline,\n\n uint256 _minPrice,\n\n string calldata _metaEvidence\n\n ) external payable returns (uint256 taskID) {\n\n require(msg.value >= _minPrice, \"Deposited value should be greater than or equal to the min price.\");\n\n require(_deadline > block.timestamp, \"The deadline should be in the future.\");\n\n\n\n taskID = tasks.length;\n\n\n\n Task storage task = tasks.push();\n\n task.submissionTimeout = _deadline - block.timestamp;\n\n task.minPrice = _minPrice;\n\n task.maxPrice = msg.value;\n\n task.lastInteraction = block.timestamp;\n\n task.requester = msg.sender;\n\n task.requesterDeposit = msg.value;\n\n\n\n emit MetaEvidence(taskID, _metaEvidence);\n\n emit TaskCreated(taskID, msg.sender, block.timestamp);\n\n }\n\n\n\n /** @dev Assigns a specific task to the sender. Requires a translator's deposit.\n\n * Note that the deposit should be a little higher than the required value because of the price increase during the time the transaction is mined. The surplus will be reimbursed.\n\n * @param _taskID The ID of the task.\n\n */\n\n function assignTask(uint256 _taskID) external payable {\n\n Task storage task = tasks[_taskID];\n\n require(block.timestamp - task.lastInteraction <= task.submissionTimeout, \"The deadline has already passed.\");\n\n\n\n uint256 price = task.minPrice +\n\n ((task.maxPrice - task.minPrice) * (block.timestamp - task.lastInteraction)) /\n\n task.submissionTimeout;\n\n uint256 arbitrationCost = arbitrator.arbitrationCost(arbitratorExtraData);\n\n uint256 translatorDeposit = arbitrationCost.addCap((translationMultiplier.mulCap(price)) / MULTIPLIER_DIVISOR);\n\n\n\n require(task.status == Status.Created, \"Task has already been assigned or reimbursed.\");\n\n require(msg.value >= translatorDeposit, \"Not enough ETH to reach the required deposit value.\");\n\n\n\n task.parties[uint256(Party.Translator)] = msg.sender;\n\n task.status = Status.Assigned;\n\n\n\n uint256 remainder = task.maxPrice - price;\n\n task.requester.send(remainder);\n\n // Update requester's deposit since we reimbursed him the difference between maximum and actual price.\n\n task.requesterDeposit = price;\n\n task.sumDeposit = translatorDeposit;\n\n\n\n remainder = msg.value - translatorDeposit;\n\n msg.sender.send(remainder);\n\n\n\n emit TaskAssigned(_taskID, msg.sender, price, block.timestamp);\n\n }\n\n\n\n /** @dev Submits translated text for a specific task.\n\n * @param _taskID The ID of the task.\n\n * @param _translation A URI to the translated text.\n\n */\n\n function submitTranslation(uint256 _taskID, string calldata _translation) external {\n\n Task storage task = tasks[_taskID];\n\n require(\n\n task.status == Status.Assigned,\n\n \"The task is either not assigned or translation has already been submitted.\"\n\n );\n\n require(block.timestamp - task.lastInteraction <= task.submissionTimeout, \"The deadline has already passed.\");\n\n require(\n\n msg.sender == task.parties[uint256(Party.Translator)],\n\n \"Can't submit translation to a task that wasn't assigned to you.\"\n\n );\n\n task.status = Status.AwaitingReview;\n\n task.lastInteraction = block.timestamp;\n\n\n\n emit TranslationSubmitted(_taskID, msg.sender, _translation, block.timestamp);\n\n }\n\n\n\n /** @dev Reimburses the requester if no one picked the task or the translator failed to submit the translation before deadline.\n\n * @param _taskID The ID of the task.\n\n */\n\n function reimburseRequester(uint256 _taskID) external {\n\n Task storage task = tasks[_taskID];\n\n require(task.status < Status.AwaitingReview, \"Can't reimburse if translation was submitted.\");\n\n require(\n\n block.timestamp - task.lastInteraction > task.submissionTimeout,\n\n \"Can't reimburse if the deadline hasn't passed yet.\"\n\n );\n\n task.status = Status.Resolved;\n\n // Requester gets his deposit back and also the deposit of the translator, if there was one.\n\n // Note that sumDeposit can't contain challenger's deposit until the task is in DisputeCreated status.\n\n uint256 amount = task.requesterDeposit + task.sumDeposit;\n\n task.requester.send(amount);\n\n\n\n task.requesterDeposit = 0;\n\n task.sumDeposit = 0;\n\n\n\n emit TaskResolved(_taskID, \"requester-reimbursed\", block.timestamp);\n\n }\n\n\n\n /** @dev Pays the translator for completed task if no one challenged the translation during the review period.\n\n * @param _taskID The ID of the task.\n\n */\n\n function acceptTranslation(uint256 _taskID) external {\n\n Task storage task = tasks[_taskID];\n\n require(task.status == Status.AwaitingReview, \"The task is in the wrong status.\");\n\n require(block.timestamp - task.lastInteraction > reviewTimeout, \"The review phase hasn't passed yet.\");\n\n task.status = Status.Resolved;\n\n // Translator gets the price of the task and his deposit back. Note that sumDeposit can't contain challenger's deposit until the task has DisputeCreated status.\n\n uint256 amount = task.requesterDeposit + task.sumDeposit;\n\n task.parties[uint256(Party.Translator)].send(amount);\n\n\n\n task.requesterDeposit = 0;\n\n task.sumDeposit = 0;\n\n\n\n emit TaskResolved(_taskID, \"translation-accepted\", block.timestamp);\n\n }\n\n\n\n /** @dev Challenges the translation of a specific task. Requires challenger's deposit.\n\n * @param _taskID The ID of the task.\n\n * @param _evidence A link to evidence using its URI. Ignored if not provided.\n\n */\n\n function challengeTranslation(uint256 _taskID, string calldata _evidence) external payable {\n\n Task storage task = tasks[_taskID];\n\n\n\n uint256 arbitrationCost = arbitrator.arbitrationCost(arbitratorExtraData);\n\n uint256 challengeDeposit = arbitrationCost.addCap(\n\n (challengeMultiplier.mulCap(task.requesterDeposit)) / MULTIPLIER_DIVISOR\n\n );\n\n\n\n require(task.status == Status.AwaitingReview, \"The task is in the wrong status.\");\n\n require(block.timestamp - task.lastInteraction <= reviewTimeout, \"The review phase has already passed.\");\n\n require(msg.value >= challengeDeposit, \"Not enough ETH to cover challenge deposit.\");\n\n\n\n task.status = Status.DisputeCreated;\n\n task.parties[uint256(Party.Challenger)] = msg.sender;\n\n\n\n task.disputeID = arbitrator.createDispute{value: arbitrationCost}(2, arbitratorExtraData);\n\n disputeIDtoTaskID[task.disputeID] = _taskID;\n\n task.rounds.push();\n\n task.sumDeposit = task.sumDeposit.addCap(challengeDeposit).subCap(arbitrationCost);\n\n\n\n uint256 remainder = msg.value - challengeDeposit;\n\n msg.sender.send(remainder);\n\n\n\n emit Dispute(arbitrator, task.disputeID, _taskID, _taskID);\n\n emit TranslationChallenged(_taskID, msg.sender, block.timestamp);\n\n\n\n if (bytes(_evidence).length > 0) emit Evidence(arbitrator, _taskID, msg.sender, _evidence);\n\n }\n\n\n\n /** @dev Takes up to the total amount required to fund a side of an appeal. Reimburses the rest. Creates an appeal if all sides are fully funded.\n\n * @param _taskID The ID of challenged task.\n\n * @param _side The party that pays the appeal fee.\n\n */\n\n function fundAppeal(uint256 _taskID, Party _side) external payable {\n\n Task storage task = tasks[_taskID];\n\n require(\n\n _side == Party.Translator || _side == Party.Challenger,\n\n \"Recipient must be either the translator or challenger.\"\n\n );\n\n require(task.status == Status.DisputeCreated, \"No dispute to appeal.\");\n\n require(\n\n arbitrator.disputeStatus(task.disputeID) == IArbitrator.DisputeStatus.Appealable,\n\n \"Dispute is not appealable.\"\n\n );\n\n\n\n (uint256 appealPeriodStart, uint256 appealPeriodEnd) = arbitrator.appealPeriod(task.disputeID);\n\n require(\n\n block.timestamp >= appealPeriodStart && block.timestamp < appealPeriodEnd,\n\n \"Funding must be made within the appeal period.\"\n\n );\n\n\n\n uint256 winner = arbitrator.currentRuling(task.disputeID);\n\n uint256 multiplier;\n\n if (winner == uint256(_side)) {\n\n multiplier = winnerStakeMultiplier;\n\n } else if (winner == 0) {\n\n multiplier = sharedStakeMultiplier;\n\n } else {\n\n require(\n\n block.timestamp - appealPeriodStart < (appealPeriodEnd - appealPeriodStart) / 2,\n\n \"The loser must pay during the first half of the appeal period.\"\n\n );\n\n multiplier = loserStakeMultiplier;\n\n }\n\n\n\n Round storage round = task.rounds[task.rounds.length - 1];\n\n require(!round.hasPaid[uint256(_side)], \"Appeal fee has already been paid.\");\n\n\n\n uint256 appealCost = arbitrator.appealCost(task.disputeID, arbitratorExtraData);\n\n uint256 totalCost = appealCost.addCap((appealCost.mulCap(multiplier)) / MULTIPLIER_DIVISOR);\n\n\n\n // Take up to the amount necessary to fund the current round at the current costs.\n\n uint256 contribution; // Amount contributed.\n\n uint256 remainingETH; // Remaining ETH to send back.\n\n (contribution, remainingETH) = calculateContribution(\n\n msg.value,\n\n totalCost.subCap(round.paidFees[uint256(_side)])\n\n );\n\n round.contributions[msg.sender][uint256(_side)] += contribution;\n\n round.paidFees[uint256(_side)] += contribution;\n\n\n\n emit AppealContribution(_taskID, _side, msg.sender, contribution);\n\n\n\n // Add contribution to reward when the fee funding is successful, otherwise it can be withdrawn later.\n\n if (round.paidFees[uint256(_side)] >= totalCost) {\n\n round.hasPaid[uint256(_side)] = true;\n\n round.feeRewards += round.paidFees[uint256(_side)];\n\n emit HasPaidAppealFee(_taskID, _side);\n\n }\n\n\n\n // Reimburse leftover ETH.\n\n msg.sender.send(remainingETH); // Deliberate use of send in order to not block the contract in case of reverting fallback.\n\n\n\n // Create an appeal if each side is funded.\n\n if (round.hasPaid[uint256(Party.Translator)] && round.hasPaid[uint256(Party.Challenger)]) {\n\n arbitrator.appeal{value: appealCost}(task.disputeID, arbitratorExtraData);\n\n task.rounds.push();\n\n round.feeRewards = round.feeRewards.subCap(appealCost);\n\n }\n\n }\n\n\n\n /** @dev Returns the contribution value and remainder from available ETH and required amount.\n\n * @param _available The amount of ETH available for the contribution.\n\n * @param _requiredAmount The amount of ETH required for the contribution.\n\n * @return taken The amount of ETH taken.\n\n * @return remainder The amount of ETH left from the contribution.\n\n */\n\n function calculateContribution(uint256 _available, uint256 _requiredAmount)\n\n internal\n\n pure\n\n returns (uint256 taken, uint256 remainder)\n\n {\n\n if (_requiredAmount > _available) return (_available, 0); // Take whatever is available, return 0 as leftover ETH.\n\n\n\n remainder = _available - _requiredAmount;\n\n return (_requiredAmount, remainder);\n\n }\n\n\n\n /** @dev Withdraws contributions of appeal rounds. Reimburses contributions if no disputes were raised. If a dispute was raised, sends the fee stake rewards and reimbursements proportional to the contributions made to the winner of a dispute.\n\n * @param _beneficiary The address that made contributions.\n\n * @param _taskID The ID of the associated task.\n\n * @param _round The round from which to withdraw.\n\n */\n\n function withdrawFeesAndRewards(\n\n address payable _beneficiary,\n\n uint256 _taskID,\n\n uint256 _round\n\n ) public {\n\n Task storage task = tasks[_taskID];\n\n Round storage round = task.rounds[_round];\n\n require(task.status == Status.Resolved, \"The task should be resolved.\");\n\n uint256 reward;\n\n if (!round.hasPaid[uint256(Party.Translator)] || !round.hasPaid[uint256(Party.Challenger)]) {\n\n // Allow to reimburse if funding was unsuccessful.\n\n reward =\n\n round.contributions[_beneficiary][uint256(Party.Translator)] +\n\n round.contributions[_beneficiary][uint256(Party.Challenger)];\n\n round.contributions[_beneficiary][uint256(Party.Translator)] = 0;\n\n round.contributions[_beneficiary][uint256(Party.Challenger)] = 0;\n\n } else if (task.ruling == uint256(Party.None)) {\n\n // Reimburse unspent fees proportionally if there is no winner and loser.\n\n uint256 rewardTranslator = round.paidFees[uint256(Party.Translator)] > 0\n\n ? (round.contributions[_beneficiary][uint256(Party.Translator)] * round.feeRewards) /\n\n (round.paidFees[uint256(Party.Translator)] + round.paidFees[uint256(Party.Challenger)])\n\n : 0;\n\n uint256 rewardChallenger = round.paidFees[uint256(Party.Challenger)] > 0\n\n ? (round.contributions[_beneficiary][uint256(Party.Challenger)] * round.feeRewards) /\n\n (round.paidFees[uint256(Party.Translator)] + round.paidFees[uint256(Party.Challenger)])\n\n : 0;\n\n\n\n reward = rewardTranslator + rewardChallenger;\n\n round.contributions[_beneficiary][uint256(Party.Translator)] = 0;\n\n round.contributions[_beneficiary][uint256(Party.Challenger)] = 0;\n\n } else {\n\n // Reward the winner.\n\n reward = round.paidFees[task.ruling] > 0\n\n ? (round.contributions[_beneficiary][task.ruling] * round.feeRewards) / round.paidFees[task.ruling]\n\n : 0;\n\n round.contributions[_beneficiary][task.ruling] = 0;\n\n }\n\n\n\n _beneficiary.send(reward); // It is the user's responsibility to accept ETH.\n\n }\n\n\n\n /** @dev Withdraws contributions of multiple appeal rounds at once. This function is O(n) where n is the number of rounds. This could exceed the gas limit, therefore this function should be used only as a utility and not be relied upon by other contracts.\n\n * @param _beneficiary The address that made contributions.\n\n * @param _taskID The ID of the associated task.\n\n * @param _cursor The round from where to start withdrawing.\n\n * @param _count The number of rounds to iterate. If set to 0 or a value larger than the number of rounds, iterates until the last round.\n\n */\n\n function batchRoundWithdraw(\n\n address payable _beneficiary,\n\n uint256 _taskID,\n\n uint256 _cursor,\n\n uint256 _count\n\n ) public {\n\n Task storage task = tasks[_taskID];\n\n for (uint256 i = _cursor; i < task.rounds.length && (_count == 0 || i < _cursor + _count); i++)\n\n withdrawFeesAndRewards(_beneficiary, _taskID, i);\n\n }\n\n\n\n /** @dev Gives the ruling for a dispute. Can only be called by the arbitrator.\n\n * The purpose of this function is to ensure that the address calling it has the right to rule on the contract and to invert the ruling in the case a party loses from lack of appeal fees funding.\n\n * @param _disputeID ID of the dispute in the Arbitrator contract.\n\n * @param _ruling Ruling given by the arbitrator. Note that 0 is reserved for \"Refuse to arbitrate\".\n\n */\n\n function rule(uint256 _disputeID, uint256 _ruling) external override {\n\n Party resultRuling = Party(_ruling);\n\n uint256 taskID = disputeIDtoTaskID[_disputeID];\n\n Task storage task = tasks[taskID];\n\n Round storage round = task.rounds[task.rounds.length - 1];\n\n require(msg.sender == address(arbitrator), \"Must be called by the arbitrator.\");\n\n require(task.status == Status.DisputeCreated, \"The dispute has already been resolved.\");\n\n\n\n // If only one side paid its fees we assume the ruling to be in its favor.\n\n if (round.hasPaid[uint256(Party.Translator)] == true) resultRuling = Party.Translator;\n\n else if (round.hasPaid[uint256(Party.Challenger)] == true) resultRuling = Party.Challenger;\n\n\n\n emit Ruling(IArbitrator(msg.sender), _disputeID, uint256(resultRuling));\n\n executeRuling(_disputeID, uint256(resultRuling));\n\n }\n\n\n\n /** @dev Executes the ruling of a dispute.\n\n * @param _disputeID ID of the dispute in the Arbitrator contract.\n\n * @param _ruling Ruling given by the arbitrator. Note that 0 is reserved for \"Refuse to arbitrate\".\n\n */\n\n function executeRuling(uint256 _disputeID, uint256 _ruling) internal {\n\n uint256 taskID = disputeIDtoTaskID[_disputeID];\n\n Task storage task = tasks[taskID];\n\n task.status = Status.Resolved;\n\n task.ruling = _ruling;\n\n uint256 amount;\n\n\n\n if (_ruling == uint256(Party.None)) {\n\n task.requester.send(task.requesterDeposit);\n\n // The value of sumDeposit is split among parties in this case. If the sum is uneven the value of 1 wei can be burnt.\n\n amount = task.sumDeposit / 2;\n\n task.parties[uint256(Party.Translator)].send(amount);\n\n task.parties[uint256(Party.Challenger)].send(amount);\n\n } else if (_ruling == uint256(Party.Translator)) {\n\n amount = task.requesterDeposit + task.sumDeposit;\n\n task.parties[uint256(Party.Translator)].send(amount);\n\n } else {\n\n task.requester.send(task.requesterDeposit);\n\n task.parties[uint256(Party.Challenger)].send(task.sumDeposit);\n\n }\n\n\n\n task.requesterDeposit = 0;\n\n task.sumDeposit = 0;\n\n\n\n emit TaskResolved(taskID, \"dispute-settled\", block.timestamp);\n\n }\n\n\n\n /** @dev Submit a reference to evidence. EVENT.\n\n * @param _taskID The ID of the task.\n\n * @param _evidence A link to evidence using its URI.\n\n */\n\n function submitEvidence(uint256 _taskID, string calldata _evidence) external {\n\n Task storage task = tasks[_taskID];\n\n require(task.status != Status.Resolved, \"The task must not already be resolved.\");\n\n emit Evidence(arbitrator, _taskID, msg.sender, _evidence);\n\n }\n\n\n\n // ******************** //\n\n // * Getters * //\n\n // ******************** //\n\n\n\n /** @dev Returns the sum of withdrawable wei from appeal rounds. This function is O(n), where n is the number of rounds of the task. This could exceed the gas limit, therefore this function should only be used for interface display and not by other contracts.\n\n * @param _taskID The ID of the associated task.\n\n * @param _beneficiary The contributor for which to query.\n\n * @return total The total amount of wei available to withdraw.\n\n */\n\n function amountWithdrawable(uint256 _taskID, address payable _beneficiary) external view returns (uint256 total) {\n\n Task storage task = tasks[_taskID];\n\n if (task.status != Status.Resolved) return total;\n\n\n\n for (uint256 i = 0; i < task.rounds.length; i++) {\n\n Round storage round = task.rounds[i];\n\n if (!round.hasPaid[uint256(Party.Translator)] || !round.hasPaid[uint256(Party.Challenger)]) {\n\n total +=\n\n round.contributions[_beneficiary][uint256(Party.Translator)] +\n\n round.contributions[_beneficiary][uint256(Party.Challenger)];\n\n } else if (task.ruling == uint256(Party.None)) {\n\n uint256 rewardTranslator = round.paidFees[uint256(Party.Translator)] > 0\n\n ? (round.contributions[_beneficiary][uint256(Party.Translator)] * round.feeRewards) /\n\n (round.paidFees[uint256(Party.Translator)] + round.paidFees[uint256(Party.Challenger)])\n\n : 0;\n\n uint256 rewardChallenger = round.paidFees[uint256(Party.Challenger)] > 0\n\n ? (round.contributions[_beneficiary][uint256(Party.Challenger)] * round.feeRewards) /\n\n (round.paidFees[uint256(Party.Translator)] + round.paidFees[uint256(Party.Challenger)])\n\n : 0;\n\n\n\n total += rewardTranslator + rewardChallenger;\n\n } else {\n\n total += round.paidFees[uint256(task.ruling)] > 0\n\n ? (round.contributions[_beneficiary][uint256(task.ruling)] * round.feeRewards) /\n\n round.paidFees[uint256(task.ruling)]\n\n : 0;\n\n }\n\n }\n\n\n\n return total;\n\n }\n\n\n\n /** @dev Gets the deposit required for self-assigning the task.\n\n * @param _taskID The ID of the task.\n\n * @return deposit The translator's deposit.\n\n */\n\n function getDepositValue(uint256 _taskID) public view returns (uint256 deposit) {\n\n Task storage task = tasks[_taskID];\n\n if (block.timestamp - task.lastInteraction > task.submissionTimeout || task.status != Status.Created) {\n\n deposit = NOT_PAYABLE_VALUE;\n\n } else {\n\n uint256 price = task.minPrice +\n\n ((task.maxPrice - task.minPrice) * (block.timestamp - task.lastInteraction)) /\n\n task.submissionTimeout;\n\n uint256 arbitrationCost = arbitrator.arbitrationCost(arbitratorExtraData);\n\n deposit = arbitrationCost.addCap((translationMultiplier.mulCap(price)) / MULTIPLIER_DIVISOR);\n\n }\n\n }\n\n\n\n /** @dev Gets the deposit required for challenging the translation.\n\n * @param _taskID The ID of the task.\n\n * @return deposit The challengers's deposit.\n\n */\n\n function getChallengeValue(uint256 _taskID) public view returns (uint256 deposit) {\n\n Task storage task = tasks[_taskID];\n\n if (block.timestamp - task.lastInteraction > reviewTimeout || task.status != Status.AwaitingReview) {\n\n deposit = NOT_PAYABLE_VALUE;\n\n } else {\n\n uint256 arbitrationCost = arbitrator.arbitrationCost(arbitratorExtraData);\n\n deposit = arbitrationCost.addCap((challengeMultiplier.mulCap(task.requesterDeposit)) / MULTIPLIER_DIVISOR);\n\n }\n\n }\n\n\n\n /** @dev Gets the current price of a specified task.\n\n * @param _taskID The ID of the task.\n\n * @return price The price of the task.\n\n */\n\n function getTaskPrice(uint256 _taskID) public view returns (uint256 price) {\n\n Task storage task = tasks[_taskID];\n\n if (block.timestamp - task.lastInteraction > task.submissionTimeout || task.status != Status.Created) {\n\n price = 0;\n\n } else {\n\n price =\n\n task.minPrice +\n\n ((task.maxPrice - task.minPrice) * (block.timestamp - task.lastInteraction)) /\n\n task.submissionTimeout;\n\n }\n\n }\n\n\n\n /** @dev Gets the total number of created tasks.\n\n * @return The number of created tasks.\n\n */\n\n function getTaskCount() public view returns (uint256) {\n\n return tasks.length;\n\n }\n\n\n\n /** @dev Gets the number of rounds of the specific task.\n\n * @param _taskID The ID of the task.\n\n * @return The number of rounds.\n\n */\n\n function getNumberOfRounds(uint256 _taskID) public view returns (uint256) {\n\n Task storage task = tasks[_taskID];\n\n return task.rounds.length;\n\n }\n\n\n\n /** @dev Gets the contributions made by a party for a given round of appeal of a task.\n\n * @param _taskID The ID of the task.\n\n * @param _round The position of the round.\n\n * @param _contributor The address of the contributor.\n\n * @return contributions The contributions.\n\n */\n\n function getContributions(\n\n uint256 _taskID,\n\n uint256 _round,\n\n address _contributor\n\n ) public view returns (uint256[3] memory contributions) {\n\n Task storage task = tasks[_taskID];\n\n Round storage round = task.rounds[_round];\n\n contributions = round.contributions[_contributor];\n\n }\n\n\n\n /** @dev Gets the addresses of parties of a specified task.\n\n * @param _taskID The ID of the task.\n\n * @return parties The addresses of translator and challenger as [ZERO_ADDRESS, translator, challenger].\n\n */\n\n function getTaskParties(uint256 _taskID) public view returns (address payable[3] memory parties) {\n\n Task storage task = tasks[_taskID];\n\n parties = task.parties;\n\n }\n\n\n\n /** @dev Gets the information on a round of a task.\n\n * @param _taskID The ID of the task.\n\n * @param _round The round to be queried.\n\n * @return paidFees The amount paid by each party in the round.\n\n * @return hasPaid Whether or not a given party has paid the full fees for the round.\n\n * @return feeRewards The amount of fees that will be available as rewards for the winner.\n\n */\n\n function getRoundInfo(uint256 _taskID, uint256 _round)\n\n public\n\n view\n\n returns (\n\n uint256[3] memory paidFees,\n\n bool[3] memory hasPaid,\n\n uint256 feeRewards\n\n )\n\n {\n\n Task storage task = tasks[_taskID];\n\n Round storage round = task.rounds[_round];\n\n return (round.paidFees, round.hasPaid, round.feeRewards);\n\n }\n\n}\n\ncontract ERC20 is Context, IERC20 {\n\n using SafeMath for uint256;\n\n using Address for address;\n\n\n\n mapping (address => uint256) private _balances;\n\n\n\n mapping (address => mapping (address => uint256)) private _allowances;\n\n\n\n uint256 private _totalSupply;\n\n\n\n string private _name;\n\n string private _symbol;\n\n uint8 private _decimals;\n\n\n\n /**\n\n * @dev Sets the values for {name} and {symbol}, initializes {decimals} with\n\n * a default value of 18.\n\n *\n\n * To select a different value for {decimals}, use {_setupDecimals}.\n\n *\n\n * All three of these values are immutable: they can only be set once during\n\n * construction.\n\n */\n\n constructor (string memory name, string memory symbol) {\n\n _name = name;\n\n _symbol = symbol;\n\n _decimals = 18;\n\n }\n\n\n\n /**\n\n * @dev Returns the name of the token.\n\n */\n\n function name() public view returns (string memory) {\n\n return _name;\n\n }\n\n\n\n /**\n\n * @dev Returns the symbol of the token, usually a shorter version of the\n\n * name.\n\n */\n\n function symbol() public view returns (string memory) {\n\n return _symbol;\n\n }\n\n\n\n /**\n\n * @dev Returns the number of decimals used to get its user representation.\n\n * For example, if `decimals` equals `2`, a balance of `505` tokens should\n\n * be displayed to a user as `5,05` (`505 / 10 ** 2`).\n\n *\n\n * Tokens usually opt for a value of 18, imitating the relationship between\n\n * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is\n\n * called.\n\n *\n\n * NOTE: This information is only used for _display_ purposes: it in\n\n * no way affects any of the arithmetic of the contract, including\n\n * {IERC20-balanceOf} and {IERC20-transfer}.\n\n */\n\n function decimals() public view returns (uint8) {\n\n return _decimals;\n\n }\n\n\n\n /**\n\n * @dev See {IERC20-totalSupply}.\n\n */\n\n function totalSupply() public view override returns (uint256) {\n\n return _totalSupply;\n\n }\n\n\n\n /**\n\n * @dev See {IERC20-balanceOf}.\n\n */\n\n function balanceOf(address account) public view override returns (uint256) {\n\n return _balances[account];\n\n }\n\n\n\n /**\n\n * @dev See {IERC20-transfer}.\n\n *\n\n * Requirements:\n\n *\n\n * - `recipient` cannot be the zero address.\n\n * - the caller must have a balance of at least `amount`.\n\n */\n\n function transfer(address recipient, uint256 amount) public virtual override returns (bool) {\n\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev See {IERC20-allowance}.\n\n */\n\n function allowance(address owner, address spender) public view virtual override returns (uint256) {\n\n return _allowances[owner][spender];\n\n }\n\n\n\n /**\n\n * @dev See {IERC20-approve}.\n\n *\n\n * Requirements:\n\n *\n\n * - `spender` cannot be the zero address.\n\n */\n\n function approve(address spender, uint256 amount) public virtual override returns (bool) {\n\n _approve(_msgSender(), spender, amount);\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev See {IERC20-transferFrom}.\n\n *\n\n * Emits an {Approval} event indicating the updated allowance. This is not\n\n * required by the EIP. See the note at the beginning of {ERC20};\n\n *\n\n * Requirements:\n\n * - `sender` and `recipient` cannot be the zero address.\n\n * - `sender` must have a balance of at least `amount`.\n\n * - the caller must have allowance for ``sender``'s tokens of at least\n\n * `amount`.\n\n */\n\n function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {\n\n _transfer(sender, recipient, amount);\n\n _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, \"ERC20: transfer amount exceeds allowance\"));\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev Atomically increases the allowance granted to `spender` by the caller.\n\n *\n\n * This is an alternative to {approve} that can be used as a mitigation for\n\n * problems described in {IERC20-approve}.\n\n *\n\n * Emits an {Approval} event indicating the updated allowance.\n\n *\n\n * Requirements:\n\n *\n\n * - `spender` cannot be the zero address.\n\n */\n\n function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {\n\n _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev Atomically decreases the allowance granted to `spender` by the caller.\n\n *\n\n * This is an alternative to {approve} that can be used as a mitigation for\n\n * problems described in {IERC20-approve}.\n\n *\n\n * Emits an {Approval} event indicating the updated allowance.\n\n *\n\n * Requirements:\n\n *\n\n * - `spender` cannot be the zero address.\n\n * - `spender` must have allowance for the caller of at least\n\n * `subtractedValue`.\n\n */\n\n function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {\n\n _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, \"ERC20: decreased allowance below zero\"));\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev Moves tokens `amount` from `sender` to `recipient`.\n\n *\n\n * This is internal function is equivalent to {transfer}, and can be used to\n\n * e.g. implement automatic token fees, slashing mechanisms, etc.\n\n *\n\n * Emits a {Transfer} event.\n\n *\n\n * Requirements:\n\n *\n\n * - `sender` cannot be the zero address.\n\n * - `recipient` cannot be the zero address.\n\n * - `sender` must have a balance of at least `amount`.\n\n */\n\n function _transfer(address sender, address recipient, uint256 amount) internal virtual {\n\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n\n\n _beforeTokenTransfer(sender, recipient, amount);\n\n\n\n _balances[sender] = _balances[sender].sub(amount, \"ERC20: transfer amount exceeds balance\");\n\n _balances[recipient] = _balances[recipient].add(amount);\n\n emit Transfer(sender, recipient, amount);\n\n }\n\n\n\n /** @dev Creates `amount` tokens and assigns them to `account`, increasing\n\n * the total supply.\n\n *\n\n * Emits a {Transfer} event with `from` set to the zero address.\n\n *\n\n * Requirements\n\n *\n\n * - `to` cannot be the zero address.\n\n */\n\n function _mint(address account, uint256 amount) internal virtual {\n\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n\n\n _beforeTokenTransfer(address(0), account, amount);\n\n\n\n _totalSupply = _totalSupply.add(amount);\n\n _balances[account] = _balances[account].add(amount);\n\n emit Transfer(address(0), account, amount);\n\n }\n\n\n\n /**\n\n * @dev Destroys `amount` tokens from `account`, reducing the\n\n * total supply.\n\n *\n\n * Emits a {Transfer} event with `to` set to the zero address.\n\n *\n\n * Requirements\n\n *\n\n * - `account` cannot be the zero address.\n\n * - `account` must have at least `amount` tokens.\n\n */\n\n function _burn(address account, uint256 amount) internal virtual {\n\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n\n\n _beforeTokenTransfer(account, address(0), amount);\n\n\n\n _balances[account] = _balances[account].sub(amount, \"ERC20: burn amount exceeds balance\");\n\n _totalSupply = _totalSupply.sub(amount);\n\n emit Transfer(account, address(0), amount);\n\n }\n\n\n\n /**\n\n * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens.\n\n *\n\n * This is internal function is equivalent to `approve`, and can be used to\n\n * e.g. set automatic allowances for certain subsystems, etc.\n\n *\n\n * Emits an {Approval} event.\n\n *\n\n * Requirements:\n\n *\n\n * - `owner` cannot be the zero address.\n\n * - `spender` cannot be the zero address.\n\n */\n\n function _approve(address owner, address spender, uint256 amount) internal virtual {\n\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n\n }\n\n\n\n /**\n\n * @dev Sets {decimals} to a value other than the default one of 18.\n\n *\n\n * WARNING: This function should only be called from the constructor. Most\n\n * applications that interact with token contracts will not expect\n\n * {decimals} to ever change, and may work incorrectly if it does.\n\n */\n\n function _setupDecimals(uint8 decimals_) internal {\n\n _decimals = decimals_;\n\n }\n\n\n\n /**\n\n * @dev Hook that is called before any transfer of tokens. This includes\n\n * minting and burning.\n\n *\n\n * Calling conditions:\n\n *\n\n * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n\n * will be to transferred to `to`.\n\n * - when `from` is zero, `amount` tokens will be minted for `to`.\n\n * - when `to` is zero, `amount` of ``from``'s tokens will be burned.\n\n * - `from` and `to` are never both zero.\n\n *\n\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n\n */\n\n function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { }\n\n}\n\nabstract contract ERC20Burnable is Context, ERC20 {\n\n using SafeMath for uint256;\n\n\n\n /**\n\n * @dev Destroys `amount` tokens from the caller.\n\n *\n\n * See {ERC20-_burn}.\n\n */\n\n function burn(uint256 amount) public virtual {\n\n _burn(_msgSender(), amount);\n\n }\n\n\n\n /**\n\n * @dev Destroys `amount` tokens from `account`, deducting from the caller's\n\n * allowance.\n\n *\n\n * See {ERC20-_burn} and {ERC20-allowance}.\n\n *\n\n * Requirements:\n\n *\n\n * - the caller must have allowance for ``accounts``'s tokens of at least\n\n * `amount`.\n\n */\n\n function burnFrom(address account, uint256 amount) public virtual {\n\n uint256 decreasedAllowance = allowance(account, _msgSender()).sub(amount, \"ERC20: burn amount exceeds allowance\");\n\n\n\n _approve(account, _msgSender(), decreasedAllowance);\n\n _burn(account, amount);\n\n }\n\n}\n\ncontract ERC20Mock is ERC20, ERC20Burnable {\n\n constructor(address initialAccount, uint256 initialBalance) ERC20(\"MockToken\", \"MCT\") {\n\n _mint(initialAccount, initialBalance);\n\n 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0":{"kind":"number","value":684,"string":"684"},"address":{"kind":"string","value":"0xf247f7d61babed6551cC5fb4b8ee712C57247997"},"source_code":{"kind":"string","value":"pragma solidity 0.6.8;\n\nlibrary Address {\n\n /**\n\n * @dev Returns true if `account` is a contract.\n\n *\n\n * [IMPORTANT]\n\n * ====\n\n * It is unsafe to assume that an address for which this function returns\n\n * false is an externally-owned account (EOA) and not a contract.\n\n *\n\n * Among others, `isContract` will return false for the following\n\n * types of addresses:\n\n *\n\n * - an externally-owned account\n\n * - a contract in construction\n\n * - an address where a contract will be created\n\n * - an address where a contract lived, but was destroyed\n\n * ====\n\n */\n\n function isContract(address account) internal view returns (bool) {\n\n // This method relies in extcodesize, which returns 0 for contracts in\n\n // construction, since the code is only stored at the end of the\n\n // constructor execution.\n\n\n\n uint256 size;\n\n // solhint-disable-next-line no-inline-assembly\n\n assembly {\n\n size := extcodesize(account)\n\n }\n\n return size > 0;\n\n }\n\n\n\n /**\n\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n\n * `recipient`, forwarding all available gas and reverting on errors.\n\n *\n\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n\n * imposed by `transfer`, making them unable to receive vaults via\n\n * `transfer`. {sendValue} removes this limitation.\n\n *\n\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n\n *\n\n * IMPORTANT: because control is transferred to `recipient`, care must be\n\n * taken to not create reentrancy vulnerabilities. Consider using\n\n * {ReentrancyGuard} or the\n\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n\n */\n\n function sendValue(address payable recipient, uint256 amount) internal {\n\n require(\n\n address(this).balance >= amount,\n\n \"Address: insufficient balance\"\n\n );\n\n\n\n // solhint-disable-next-line avoid-low-level-calls, avoid-call-value\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n\n require(\n\n success,\n\n \"Address: unable to send value, recipient may have reverted\"\n\n );\n\n }\n\n\n\n /**\n\n * @dev Performs a Solidity function call using a low level `call`. A\n\n * plain`call` is an unsafe replacement for a function call: use this\n\n * function instead.\n\n *\n\n * If `target` reverts with a revert reason, it is bubbled up by this\n\n * function (like regular Solidity function calls).\n\n *\n\n * Returns the raw returned data. To convert to the expected return value,\n\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n\n *\n\n * Requirements:\n\n *\n\n * - `target` must be a contract.\n\n * - calling `target` with `data` must not revert.\n\n *\n\n * _Available since v3.1._\n\n */\n\n function functionCall(address target, bytes memory data)\n\n internal\n\n returns (bytes memory)\n\n {\n\n return functionCall(target, data, \"Address: low-level call failed\");\n\n }\n\n\n\n /**\n\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n\n * `errorMessage` as a fallback revert reason when `target` reverts.\n\n *\n\n * _Available since v3.1._\n\n */\n\n function functionCall(\n\n address target,\n\n bytes memory data,\n\n string memory errorMessage\n\n ) internal returns (bytes memory) {\n\n return _functionCallWithValue(target, data, 0, errorMessage);\n\n }\n\n\n\n /**\n\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n\n * but also transferring `value` wei to `target`.\n\n *\n\n * Requirements:\n\n *\n\n * - the calling contract must have an ETH balance of at least `value`.\n\n * - the called Solidity function must be `payable`.\n\n *\n\n * _Available since v3.1._\n\n */\n\n function functionCallWithValue(\n\n address target,\n\n bytes memory data,\n\n uint256 value\n\n ) internal returns (bytes memory) {\n\n return\n\n functionCallWithValue(\n\n target,\n\n data,\n\n value,\n\n \"Address: low-level call with value failed\"\n\n );\n\n }\n\n\n\n /**\n\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n\n *\n\n * _Available since v3.1._\n\n */\n\n function functionCallWithValue(\n\n address target,\n\n bytes memory data,\n\n uint256 value,\n\n string memory errorMessage\n\n ) internal returns (bytes memory) {\n\n require(\n\n address(this).balance >= value,\n\n \"Address: insufficient balance for call\"\n\n );\n\n return _functionCallWithValue(target, data, value, errorMessage);\n\n }\n\n\n\n function _functionCallWithValue(\n\n address target,\n\n bytes memory data,\n\n uint256 weiValue,\n\n string memory errorMessage\n\n ) private returns (bytes memory) {\n\n require(isContract(target), \"Address: call to non-contract\");\n\n\n\n // solhint-disable-next-line avoid-low-level-calls\n\n (bool success, bytes memory returndata) = target.call{value: weiValue}(\n\n data\n\n );\n\n if (success) {\n\n return returndata;\n\n } else {\n\n // Look for revert reason and bubble it up if present\n\n if (returndata.length > 0) {\n\n // The easiest way to bubble the revert reason is using memory via assembly\n\n\n\n // solhint-disable-next-line no-inline-assembly\n\n assembly {\n\n let returndata_size := mload(returndata)\n\n revert(add(32, returndata), returndata_size)\n\n }\n\n } else {\n\n revert(errorMessage);\n\n }\n\n }\n\n }\n\n}\n\nabstract contract Context {\n\n function _msgSender() internal view virtual returns (address payable) {\n\n return msg.sender;\n\n }\n\n\n\n function _msgData() internal view virtual returns (bytes memory) {\n\n this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691\n\n return msg.data;\n\n }\n\n}\n\ncontract CryptoPunksMarket {\n\n address owner;\n\n\n\n string public standard = \"CryptoPunks\";\n\n string public name;\n\n string public symbol;\n\n uint8 public decimals;\n\n uint256 public totalSupply;\n\n\n\n uint256 public nextPunkIndexToAssign = 0;\n\n\n\n bool public allPunksAssigned = false;\n\n uint256 public punksRemainingToAssign = 0;\n\n\n\n //mapping (address => uint) public addressToPunkIndex;\n\n mapping(uint256 => address) public punkIndexToAddress;\n\n\n\n /* This creates an array with all balances */\n\n mapping(address => uint256) public balanceOf;\n\n\n\n struct Offer {\n\n bool isForSale;\n\n uint256 punkIndex;\n\n address seller;\n\n uint256 minValue; // in ether\n\n address onlySellTo; // specify to sell only to a specific person\n\n }\n\n\n\n struct Bid {\n\n bool hasBid;\n\n uint256 punkIndex;\n\n address bidder;\n\n uint256 value;\n\n }\n\n\n\n // A record of punks that are offered for sale at a specific minimum value, and perhaps to a specific person\n\n mapping(uint256 => Offer) public punksOfferedForSale;\n\n\n\n // A record of the highest punk bid\n\n mapping(uint256 => Bid) public punkBids;\n\n\n\n mapping(address => uint256) public pendingWithdrawals;\n\n\n\n event Assign(address indexed to, uint256 punkIndex);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event PunkTransfer(\n\n address indexed from,\n\n address indexed to,\n\n uint256 punkIndex\n\n );\n\n event PunkOffered(\n\n uint256 indexed punkIndex,\n\n uint256 minValue,\n\n address indexed toAddress\n\n );\n\n event PunkBidEntered(\n\n uint256 indexed punkIndex,\n\n uint256 value,\n\n address indexed fromAddress\n\n );\n\n event PunkBidWithdrawn(\n\n uint256 indexed punkIndex,\n\n uint256 value,\n\n address indexed fromAddress\n\n );\n\n event PunkBought(\n\n uint256 indexed punkIndex,\n\n uint256 value,\n\n address indexed fromAddress,\n\n address indexed toAddress\n\n );\n\n event PunkNoLongerForSale(uint256 indexed punkIndex);\n\n\n\n /* Initializes contract with initial supply tokens to the creator of the contract */\n\n constructor() public payable {\n\n // balanceOf[msg.sender] = initialSupply; // Give the creator all initial tokens\n\n owner = msg.sender;\n\n totalSupply = 10000; // Update total supply\n\n punksRemainingToAssign = totalSupply;\n\n name = \"CRYPTOPUNKS\"; // Set the name for display purposes\n\n symbol = \"Ͼ\"; // Set the symbol for display purposes\n\n decimals = 0; // Amount of decimals for display purposes\n\n }\n\n\n\n function setInitialOwner(address to, uint256 punkIndex) public {\n\n // require(msg.sender == owner, \"msg.sender != owner\");\n\n require(!allPunksAssigned);\n\n require(punkIndex < 10000);\n\n if (punkIndexToAddress[punkIndex] != to) {\n\n if (punkIndexToAddress[punkIndex] != address(0)) {\n\n balanceOf[punkIndexToAddress[punkIndex]]--;\n\n } else {\n\n punksRemainingToAssign--;\n\n }\n\n punkIndexToAddress[punkIndex] = to;\n\n balanceOf[to]++;\n\n emit PunkTransfer(address(0), to, punkIndex);\n\n }\n\n }\n\n\n\n function setInitialOwners(\n\n address[] memory addresses,\n\n uint256[] memory indices\n\n ) public {\n\n require(msg.sender == owner);\n\n uint256 n = addresses.length;\n\n for (uint256 i = 0; i < n; i++) {\n\n setInitialOwner(addresses[i], indices[i]);\n\n }\n\n }\n\n\n\n function allInitialOwnersAssigned() public {\n\n require(msg.sender == owner);\n\n allPunksAssigned = true;\n\n }\n\n\n\n function getPunk(uint256 punkIndex) public {\n\n // require(allPunksAssigned);\n\n require(punksRemainingToAssign != 0);\n\n require(punkIndexToAddress[punkIndex] == address(0));\n\n require(punkIndex < 10000);\n\n punkIndexToAddress[punkIndex] = msg.sender;\n\n balanceOf[msg.sender]++;\n\n punksRemainingToAssign--;\n\n emit Assign(msg.sender, punkIndex);\n\n }\n\n\n\n // Transfer ownership of a punk to another user without requiring payment\n\n function transferPunk(address to, uint256 punkIndex) public {\n\n // // require(allPunksAssigned);\n\n require(punkIndexToAddress[punkIndex] == msg.sender);\n\n require(punkIndex < 10000);\n\n if (punksOfferedForSale[punkIndex].isForSale) {\n\n punkNoLongerForSale(punkIndex);\n\n }\n\n punkIndexToAddress[punkIndex] = to;\n\n balanceOf[msg.sender]--;\n\n balanceOf[to]++;\n\n emit Transfer(msg.sender, to, 1);\n\n emit PunkTransfer(msg.sender, to, punkIndex);\n\n // Check for the case where there is a bid from the new owner and revault it.\n\n // Any other bid can stay in place.\n\n Bid storage bid = punkBids[punkIndex];\n\n if (bid.bidder == to) {\n\n // Kill bid and revault value\n\n pendingWithdrawals[to] += bid.value;\n\n punkBids[punkIndex] = Bid(false, punkIndex, address(0), 0);\n\n }\n\n }\n\n\n\n function punkNoLongerForSale(uint256 punkIndex) public {\n\n // require(allPunksAssigned);\n\n require(punkIndexToAddress[punkIndex] == msg.sender);\n\n require(punkIndex < 10000);\n\n punksOfferedForSale[punkIndex] = Offer(\n\n false,\n\n punkIndex,\n\n msg.sender,\n\n 0,\n\n address(0)\n\n );\n\n emit PunkNoLongerForSale(punkIndex);\n\n }\n\n\n\n function offerPunkForSale(uint256 punkIndex, uint256 minSalePriceInWei)\n\n public\n\n {\n\n // require(allPunksAssigned);\n\n require(punkIndexToAddress[punkIndex] == msg.sender);\n\n require(punkIndex < 10000);\n\n punksOfferedForSale[punkIndex] = Offer(\n\n true,\n\n punkIndex,\n\n msg.sender,\n\n minSalePriceInWei,\n\n address(0)\n\n );\n\n emit PunkOffered(punkIndex, minSalePriceInWei, address(0));\n\n }\n\n\n\n function offerPunkForSaleToAddress(\n\n uint256 punkIndex,\n\n uint256 minSalePriceInWei,\n\n address toAddress\n\n ) public {\n\n // require(allPunksAssigned);\n\n require(punkIndexToAddress[punkIndex] == msg.sender);\n\n require(punkIndex < 10000);\n\n punksOfferedForSale[punkIndex] = Offer(\n\n true,\n\n punkIndex,\n\n msg.sender,\n\n minSalePriceInWei,\n\n toAddress\n\n );\n\n emit PunkOffered(punkIndex, minSalePriceInWei, toAddress);\n\n }\n\n\n\n function buyPunk(uint256 punkIndex) public payable {\n\n // require(allPunksAssigned);\n\n Offer storage offer = punksOfferedForSale[punkIndex];\n\n require(punkIndex < 10000);\n\n require(offer.isForSale); // punk not actually for sale\n\n (offer.onlySellTo == address(0) || offer.onlySellTo == msg.sender); // punk not supposed to be sold to this user\n\n require(msg.value >= offer.minValue); // Didn't send enough ETH\n\n require(offer.seller == punkIndexToAddress[punkIndex]); // Seller no longer owner of punk\n\n\n\n address seller = offer.seller;\n\n\n\n punkIndexToAddress[punkIndex] = msg.sender;\n\n balanceOf[seller]--;\n\n balanceOf[msg.sender]++;\n\n emit Transfer(seller, msg.sender, 1);\n\n\n\n punkNoLongerForSale(punkIndex);\n\n pendingWithdrawals[seller] += msg.value;\n\n emit PunkBought(punkIndex, msg.value, seller, msg.sender);\n\n\n\n // Check for the case where there is a bid from the new owner and revault it.\n\n // Any other bid can stay in place.\n\n Bid storage bid = punkBids[punkIndex];\n\n if (bid.bidder == msg.sender) {\n\n // Kill bid and revault value\n\n pendingWithdrawals[msg.sender] += bid.value;\n\n punkBids[punkIndex] = Bid(false, punkIndex, address(0), 0);\n\n }\n\n }\n\n\n\n function withdraw() public {\n\n // require(allPunksAssigned);\n\n uint256 amount = pendingWithdrawals[msg.sender];\n\n // Remember to zero the pending revault before\n\n // sending to prevent re-entrancy attacks\n\n pendingWithdrawals[msg.sender] = 0;\n\n msg.sender.transfer(amount);\n\n }\n\n\n\n function enterBidForPunk(uint256 punkIndex) public payable {\n\n require(punkIndex < 10000);\n\n // require(allPunksAssigned);\n\n require(punkIndexToAddress[punkIndex] != address(0));\n\n require(punkIndexToAddress[punkIndex] != msg.sender);\n\n require(msg.value != 0);\n\n Bid storage existing = punkBids[punkIndex];\n\n require(msg.value > existing.value);\n\n if (existing.value > 0) {\n\n // Revault the failing bid\n\n pendingWithdrawals[existing.bidder] += existing.value;\n\n }\n\n punkBids[punkIndex] = Bid(true, punkIndex, msg.sender, msg.value);\n\n emit PunkBidEntered(punkIndex, msg.value, msg.sender);\n\n }\n\n\n\n function acceptBidForPunk(uint256 punkIndex, uint256 minPrice) public {\n\n require(punkIndex < 10000);\n\n // require(allPunksAssigned);\n\n require(punkIndexToAddress[punkIndex] == msg.sender);\n\n address seller = msg.sender;\n\n Bid storage bid = punkBids[punkIndex];\n\n require(bid.value != 0);\n\n require(bid.value >= minPrice);\n\n\n\n punkIndexToAddress[punkIndex] = bid.bidder;\n\n balanceOf[seller]--;\n\n balanceOf[bid.bidder]++;\n\n emit Transfer(seller, bid.bidder, 1);\n\n\n\n punksOfferedForSale[punkIndex] = Offer(\n\n false,\n\n punkIndex,\n\n bid.bidder,\n\n 0,\n\n address(0)\n\n );\n\n uint256 amount = bid.value;\n\n punkBids[punkIndex] = Bid(false, punkIndex, address(0), 0);\n\n pendingWithdrawals[seller] += amount;\n\n emit PunkBought(punkIndex, bid.value, seller, bid.bidder);\n\n }\n\n\n\n function withdrawBidForPunk(uint256 punkIndex) public {\n\n require(punkIndex < 10000);\n\n // require(allPunksAssigned);\n\n require(punkIndexToAddress[punkIndex] != address(0));\n\n require(punkIndexToAddress[punkIndex] != msg.sender);\n\n Bid storage bid = punkBids[punkIndex];\n\n require(bid.bidder == msg.sender);\n\n emit PunkBidWithdrawn(punkIndex, bid.value, msg.sender);\n\n uint256 amount = bid.value;\n\n punkBids[punkIndex] = Bid(false, punkIndex, address(0), 0);\n\n // Revault the bid money\n\n msg.sender.transfer(amount);\n\n }\n\n}\n\n\nlibrary EnumerableSet {\n\n // To implement this library for multiple types with as little code\n\n // repetition as possible, we write it in terms of a generic Set type with\n\n // bytes32 values.\n\n // The Set implementation uses private functions, and user-facing\n\n // implementations (such as AddressSet) are just wrappers around the\n\n // underlying Set.\n\n // This means that we can only create new EnumerableSets for types that fit\n\n // in bytes32.\n\n\n\n struct Set {\n\n // Storage of set values\n\n bytes32[] _values;\n\n // Position of the value in the `values` array, plus 1 because index 0\n\n // means a value is not in the set.\n\n mapping(bytes32 => uint256) _indexes;\n\n }\n\n\n\n /**\n\n * @dev Add a value to a set. O(1).\n\n *\n\n * Returns true if the value was added to the set, that is if it was not\n\n * already present.\n\n */\n\n function _add(Set storage set, bytes32 value) private returns (bool) {\n\n if (!_contains(set, value)) {\n\n set._values.push(value);\n\n // The value is stored at length-1, but we add 1 to all indexes\n\n // and use 0 as a sentinel value\n\n set._indexes[value] = set._values.length;\n\n return true;\n\n } else {\n\n return false;\n\n }\n\n }\n\n\n\n /**\n\n * @dev Removes a value from a set. O(1).\n\n *\n\n * Returns true if the value was removed from the set, that is if it was\n\n * present.\n\n */\n\n function _remove(Set storage set, bytes32 value) private returns (bool) {\n\n // We read and store the value's index to prevent multiple reads from the same storage slot\n\n uint256 valueIndex = set._indexes[value];\n\n\n\n if (valueIndex != 0) {\n\n // Equivalent to contains(set, value)\n\n // To delete an element from the _values array in O(1), we swap the element to delete with the last one in\n\n // the array, and then remove the last element (sometimes called as 'swap and pop').\n\n // This modifies the order of the array, as noted in {at}.\n\n\n\n uint256 toDeleteIndex = valueIndex - 1;\n\n uint256 lastIndex = set._values.length - 1;\n\n\n\n // When the value to delete is the last one, the swap operation is unnecessary. However, since this occurs\n\n // so rarely, we still do the swap anyway to avoid the gas cost of adding an 'if' statement.\n\n\n\n bytes32 lastvalue = set._values[lastIndex];\n\n\n\n // Move the last value to the index where the value to delete is\n\n set._values[toDeleteIndex] = lastvalue;\n\n // Update the index for the moved value\n\n set._indexes[lastvalue] = toDeleteIndex + 1; // All indexes are 1-based\n\n\n\n // Delete the slot where the moved value was stored\n\n set._values.pop();\n\n\n\n // Delete the index for the deleted slot\n\n delete set._indexes[value];\n\n\n\n return true;\n\n } else {\n\n return false;\n\n }\n\n }\n\n\n\n /**\n\n * @dev Returns true if the value is in the set. O(1).\n\n */\n\n function _contains(Set storage set, bytes32 value)\n\n private\n\n view\n\n returns (bool)\n\n {\n\n return set._indexes[value] != 0;\n\n }\n\n\n\n /**\n\n * @dev Returns the number of values on the set. O(1).\n\n */\n\n function _length(Set storage set) private view returns (uint256) {\n\n return set._values.length;\n\n }\n\n\n\n /**\n\n * @dev Returns the value stored at position `index` in the set. O(1).\n\n *\n\n * Note that there are no guarantees on the ordering of values inside the\n\n * array, and it may change when more values are added or removed.\n\n *\n\n * Requirements:\n\n *\n\n * - `index` must be strictly less than {length}.\n\n */\n\n function _at(Set storage set, uint256 index)\n\n private\n\n view\n\n returns (bytes32)\n\n {\n\n require(\n\n set._values.length > index,\n\n \"EnumerableSet: index out of bounds\"\n\n );\n\n return set._values[index];\n\n }\n\n\n\n // AddressSet\n\n\n\n struct AddressSet {\n\n Set _inner;\n\n }\n\n\n\n /**\n\n * @dev Add a value to a set. O(1).\n\n *\n\n * Returns true if the value was added to the set, that is if it was not\n\n * already present.\n\n */\n\n function add(AddressSet storage set, address value)\n\n internal\n\n returns (bool)\n\n {\n\n return _add(set._inner, bytes32(uint256(value)));\n\n }\n\n\n\n /**\n\n * @dev Removes a value from a set. O(1).\n\n *\n\n * Returns true if the value was removed from the set, that is if it was\n\n * present.\n\n */\n\n function remove(AddressSet storage set, address value)\n\n internal\n\n returns (bool)\n\n {\n\n return _remove(set._inner, bytes32(uint256(value)));\n\n }\n\n\n\n /**\n\n * @dev Returns true if the value is in the set. O(1).\n\n */\n\n function contains(AddressSet storage set, address value)\n\n internal\n\n view\n\n returns (bool)\n\n {\n\n return _contains(set._inner, bytes32(uint256(value)));\n\n }\n\n\n\n /**\n\n * @dev Returns the number of values in the set. O(1).\n\n */\n\n function length(AddressSet storage set) internal view returns (uint256) {\n\n return _length(set._inner);\n\n }\n\n\n\n /**\n\n * @dev Returns the value stored at position `index` in the set. O(1).\n\n *\n\n * Note that there are no guarantees on the ordering of values inside the\n\n * array, and it may change when more values are added or removed.\n\n *\n\n * Requirements:\n\n *\n\n * - `index` must be strictly less than {length}.\n\n */\n\n function at(AddressSet storage set, uint256 index)\n\n internal\n\n view\n\n returns (address)\n\n {\n\n return address(uint256(_at(set._inner, index)));\n\n }\n\n\n\n // UintSet\n\n\n\n struct UintSet {\n\n Set _inner;\n\n }\n\n\n\n /**\n\n * @dev Add a value to a set. O(1).\n\n *\n\n * Returns true if the value was added to the set, that is if it was not\n\n * already present.\n\n */\n\n function add(UintSet storage set, uint256 value) internal returns (bool) {\n\n return _add(set._inner, bytes32(value));\n\n }\n\n\n\n /**\n\n * @dev Removes a value from a set. O(1).\n\n *\n\n * Returns true if the value was removed from the set, that is if it was\n\n * present.\n\n */\n\n function remove(UintSet storage set, uint256 value)\n\n internal\n\n returns (bool)\n\n {\n\n return _remove(set._inner, bytes32(value));\n\n }\n\n\n\n /**\n\n * @dev Returns true if the value is in the set. O(1).\n\n */\n\n function contains(UintSet storage set, uint256 value)\n\n internal\n\n view\n\n returns (bool)\n\n {\n\n return _contains(set._inner, bytes32(value));\n\n }\n\n\n\n /**\n\n * @dev Returns the number of values on the set. O(1).\n\n */\n\n function length(UintSet storage set) internal view returns (uint256) {\n\n return _length(set._inner);\n\n }\n\n\n\n /**\n\n * @dev Returns the value stored at position `index` in the set. O(1).\n\n *\n\n * Note that there are no guarantees on the ordering of values inside the\n\n * array, and it may change when more values are added or removed.\n\n *\n\n * Requirements:\n\n *\n\n * - `index` must be strictly less than {length}.\n\n */\n\n function at(UintSet storage set, uint256 index)\n\n internal\n\n view\n\n returns (uint256)\n\n {\n\n return uint256(_at(set._inner, index));\n\n }\n\n}\n\ninterface ICryptoPunksMarket {\n\n struct Offer {\n\n bool isForSale;\n\n uint256 punkIndex;\n\n address seller;\n\n uint256 minValue;\n\n address onlySellTo;\n\n }\n\n\n\n struct Bid {\n\n bool hasBid;\n\n uint256 punkIndex;\n\n address bidder;\n\n uint256 value;\n\n }\n\n\n\n event Assign(address indexed to, uint256 punkIndex);\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n event PunkTransfer(\n\n address indexed from,\n\n address indexed to,\n\n uint256 punkIndex\n\n );\n\n event PunkOffered(\n\n uint256 indexed punkIndex,\n\n uint256 minValue,\n\n address indexed toAddress\n\n );\n\n event PunkBidEntered(\n\n uint256 indexed punkIndex,\n\n uint256 value,\n\n address indexed fromAddress\n\n );\n\n event PunkBidWithdrawn(\n\n uint256 indexed punkIndex,\n\n uint256 value,\n\n address indexed fromAddress\n\n );\n\n event PunkBought(\n\n uint256 indexed punkIndex,\n\n uint256 value,\n\n address indexed fromAddress,\n\n address indexed toAddress\n\n );\n\n event PunkNoLongerForSale(uint256 indexed punkIndex);\n\n\n\n function setInitialOwner(address to, uint256 punkIndex) external;\n\n\n\n function setInitialOwners(\n\n address[] calldata addresses,\n\n uint256[] calldata indices\n\n ) external;\n\n\n\n function allInitialOwnersAssigned() external;\n\n\n\n function getPunk(uint256 punkIndex) external;\n\n\n\n function transferPunk(address to, uint256 punkIndex) external;\n\n\n\n function punkNoLongerForSale(uint256 punkIndex) external;\n\n\n\n function offerPunkForSale(uint256 punkIndex, uint256 minSalePriceInWei)\n\n external;\n\n\n\n function offerPunkForSaleToAddress(\n\n uint256 punkIndex,\n\n uint256 minSalePriceInWei,\n\n address toAddress\n\n ) external;\n\n\n\n function buyPunk(uint256 punkIndex) external;\n\n\n\n function withdraw() external;\n\n\n\n function enterBidForPunk(uint256 punkIndex) external;\n\n\n\n function acceptBidForPunk(uint256 punkIndex, uint256 minPrice) external;\n\n\n\n function withdrawBidForPunk(uint256 punkIndex) external;\n\n\n\n function punkIndexToAddress(uint256 punkIndex) external returns (address);\n\n function punksOfferedForSale(uint256 punkIndex)\n\n external\n\n returns (\n\n bool isForSale,\n\n uint256 _punkIndex,\n\n address seller,\n\n uint256 minValue,\n\n address onlySellTo\n\n );\n\n\n\n function balanceOf(address user) external returns (uint256);\n\n}\n\ninterface IERC20 {\n\n /**\n\n * @dev Returns the amount of tokens in existence.\n\n */\n\n function totalSupply() external view returns (uint256);\n\n\n\n /**\n\n * @dev Returns the amount of tokens owned by `account`.\n\n */\n\n function balanceOf(address account) external view returns (uint256);\n\n\n\n /**\n\n * @dev Moves `amount` tokens from the caller's account to `recipient`.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * Emits a {Transfer} event.\n\n */\n\n function transfer(address recipient, uint256 amount)\n\n external\n\n returns (bool);\n\n\n\n /**\n\n * @dev Returns the remaining number of tokens that `spender` will be\n\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n\n * zero by default.\n\n *\n\n * This value changes when {approve} or {transferFrom} are called.\n\n */\n\n function allowance(address owner, address spender)\n\n external\n\n view\n\n returns (uint256);\n\n\n\n /**\n\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n\n * that someone may use both the old and the new allowance by unfortunate\n\n * transaction ordering. One possible solution to mitigate this race\n\n * condition is to first reduce the spender's allowance to 0 and set the\n\n * desired value afterwards:\n\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n\n *\n\n * Emits an {Approval} event.\n\n */\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n\n\n /**\n\n * @dev Moves `amount` tokens from `sender` to `recipient` using the\n\n * allowance mechanism. `amount` is then deducted from the caller's\n\n * allowance.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * Emits a {Transfer} event.\n\n */\n\n function transferFrom(address sender, address recipient, uint256 amount)\n\n external\n\n returns (bool);\n\n\n\n /**\n\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n\n * another (`to`).\n\n *\n\n * Note that `value` may be zero.\n\n */\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n\n\n /**\n\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n\n * a call to {approve}. `value` is the new allowance.\n\n */\n\n event Approval(\n\n address indexed owner,\n\n address indexed spender,\n\n uint256 value\n\n );\n\n}\n\ninterface IPunkToken is IERC20 {\n\n function burn(uint256 amount) external;\n\n\n\n function burnFrom(address account, uint256 amount) external;\n\n\n\n function mint(address to, uint256 amount) external;\n\n\n\n function changeName(string calldata name) external;\n\n\n\n function changeSymbol(string calldata symbol) external;\n\n\n\n function setVaultAddress(address vaultAddress) external;\n\n\n\n function transferOwnership(address newOwner) external;\n\n}\n\ncontract Ownable is Context {\n\n address private _owner;\n\n\n\n event OwnershipTransferred(\n\n address indexed previousOwner,\n\n address indexed newOwner\n\n );\n\n\n\n /**\n\n * @dev Initializes the contract setting the deployer as the initial owner.\n\n */\n\n constructor() internal {\n\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n\n }\n\n\n\n /**\n\n * @dev Returns the address of the current owner.\n\n */\n\n function owner() public view returns (address) {\n\n return _owner;\n\n }\n\n\n\n /**\n\n * @dev Throws if called by any account other than the owner.\n\n */\n\n modifier onlyOwner() {\n\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n\n }\n\n\n\n /**\n\n * @dev Leaves the contract without owner. It will not be possible to call\n\n * `onlyOwner` functions anymore. Can only be called by the current owner.\n\n *\n\n * NOTE: Renouncing ownership will leave the contract without an owner,\n\n * thereby removing any functionality that is only available to the owner.\n\n */\n\n function renounceOwnership() public virtual onlyOwner {\n\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n\n }\n\n\n\n /**\n\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\n\n * Can only be called by the current owner.\n\n */\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n\n require(\n\n newOwner != address(0),\n\n \"Ownable: new owner is the zero address\"\n\n );\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n\n }\n\n}\n\ncontract Pausable is Ownable {\n\n bool private isPaused = false;\n\n\n\n event Paused();\n\n event Unpaused();\n\n\n\n function getIsPaused() public view returns (bool) {\n\n return isPaused;\n\n }\n\n\n\n function pause() public onlyOwner {\n\n isPaused = true;\n\n }\n\n\n\n function unpause() public onlyOwner {\n\n isPaused = false;\n\n }\n\n\n\n modifier whenPaused {\n\n require(isPaused, \"Contract is not paused\");\n\n _;\n\n }\n\n\n\n modifier whenNotPaused {\n\n require(!isPaused, \"Contract is paused\");\n\n _;\n\n }\n\n}\n\ncontract PunkVaultBase is Pausable {\n\n address private erc20Address;\n\n address private cpmAddress;\n\n\n\n IPunkToken private erc20;\n\n ICryptoPunksMarket private cpm;\n\n\n\n function getERC20Address() public view returns (address) {\n\n return erc20Address;\n\n }\n\n\n\n function getCpmAddress() public view returns (address) {\n\n return cpmAddress;\n\n }\n\n\n\n function getERC20() internal view returns (IPunkToken) {\n\n return erc20;\n\n }\n\n\n\n function getCPM() internal view returns (ICryptoPunksMarket) {\n\n return cpm;\n\n }\n\n\n\n function setERC20Address(address newAddress) internal {\n\n require(erc20Address == address(0), \"Already initialized ERC20\");\n\n erc20Address = newAddress;\n\n erc20 = IPunkToken(erc20Address);\n\n }\n\n\n\n function setCpmAddress(address newAddress) internal {\n\n require(cpmAddress == address(0), \"Already initialized CPM\");\n\n cpmAddress = newAddress;\n\n cpm = ICryptoPunksMarket(cpmAddress);\n\n }\n\n}\n\ncontract ReentrancyGuard {\n\n // Booleans are more expensive than uint256 or any type that takes up a full\n\n // word because each write operation emits an extra SLOAD to first read the\n\n // slot's contents, replace the bits taken up by the boolean, and then write\n\n // back. This is the compiler's defense against contract upgrades and\n\n // pointer aliasing, and it cannot be disabled.\n\n\n\n // The values being non-zero value makes deployment a bit more expensive,\n\n // but in exchange the revault on every call to nonReentrant will be lower in\n\n // amount. Since revaults are capped to a percentage of the total\n\n // transaction's gas, it is best to keep them low in cases like this one, to\n\n // increase the likelihood of the full revault coming into effect.\n\n uint256 private constant _NOT_ENTERED = 1;\n\n uint256 private constant _ENTERED = 2;\n\n\n\n uint256 private _status;\n\n\n\n constructor() internal {\n\n _status = _NOT_ENTERED;\n\n }\n\n\n\n /**\n\n * @dev Prevents a contract from calling itself, directly or indirectly.\n\n * Calling a `nonReentrant` function from another `nonReentrant`\n\n * function is not supported. It is possible to prevent this from happening\n\n * by making the `nonReentrant` function external, and make it call a\n\n * `private` function that does the actual work.\n\n */\n\n modifier nonReentrant() {\n\n // On the first call to nonReentrant, _notEntered will be true\n\n require(_status != _ENTERED, \"ReentrancyGuard: reentrant call\");\n\n\n\n // Any calls to nonReentrant after this point will fail\n\n _status = _ENTERED;\n\n\n\n _;\n\n\n\n // By storing the original value once again, a revault is triggered (see\n\n // https://eips.ethereum.org/EIPS/eip-2200)\n\n _status = _NOT_ENTERED;\n\n }\n\n}\n\nlibrary SafeMath {\n\n /**\n\n * @dev Returns the addition of two unsigned integers, reverting on\n\n * overflow.\n\n *\n\n * Counterpart to Solidity's `+` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Addition cannot overflow.\n\n */\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the subtraction of two unsigned integers, reverting on\n\n * overflow (when the result is negative).\n\n *\n\n * Counterpart to Solidity's `-` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Subtraction cannot overflow.\n\n */\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return sub(a, b, \"SafeMath: subtraction overflow\");\n\n }\n\n\n\n /**\n\n * @dev Returns the subtraction of two unsigned integers, reverting with custom message on\n\n * overflow (when the result is negative).\n\n *\n\n * Counterpart to Solidity's `-` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Subtraction cannot overflow.\n\n */\n\n function sub(uint256 a, uint256 b, string memory errorMessage)\n\n internal\n\n pure\n\n returns (uint256)\n\n {\n\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the multiplication of two unsigned integers, reverting on\n\n * overflow.\n\n *\n\n * Counterpart to Solidity's `*` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Multiplication cannot overflow.\n\n */\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n\n // benefit is lost if 'b' is also tested.\n\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n\n if (a == 0) {\n\n return 0;\n\n }\n\n\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the integer division of two unsigned integers. Reverts on\n\n * division by zero. The result is rounded towards zero.\n\n *\n\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n\n * uses an invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return div(a, b, \"SafeMath: division by zero\");\n\n }\n\n\n\n /**\n\n * @dev Returns the integer division of two unsigned integers. Reverts with custom message on\n\n * division by zero. The result is rounded towards zero.\n\n *\n\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n\n * uses an invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function div(uint256 a, uint256 b, string memory errorMessage)\n\n internal\n\n pure\n\n returns (uint256)\n\n {\n\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n\n * Reverts when dividing by zero.\n\n *\n\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n\n * invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return mod(a, b, \"SafeMath: modulo by zero\");\n\n }\n\n\n\n /**\n\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n\n * Reverts with custom message when dividing by zero.\n\n *\n\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n\n * invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function mod(uint256 a, uint256 b, string memory errorMessage)\n\n internal\n\n pure\n\n returns (uint256)\n\n {\n\n require(b != 0, errorMessage);\n\n return a % b;\n\n }\n\n}\n\ncontract ERC20 is Context, IERC20 {\n\n using SafeMath for uint256;\n\n using Address for address;\n\n\n\n mapping(address => uint256) private _balances;\n\n\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n\n\n uint256 private _totalSupply;\n\n\n\n string private _name;\n\n string private _symbol;\n\n uint8 private _decimals;\n\n\n\n /**\n\n * @dev Sets the values for {name} and {symbol}, initializes {decimals} with\n\n * a default value of 18.\n\n *\n\n * To select a different value for {decimals}, use {_setupDecimals}.\n\n *\n\n * All three of these values are immutable: they can only be set once during\n\n * construction.\n\n */\n\n constructor(string memory name, string memory symbol) public {\n\n _name = name;\n\n _symbol = symbol;\n\n _decimals = 18;\n\n }\n\n\n\n /**\n\n * @dev Returns the name of the token.\n\n */\n\n function name() public view returns (string memory) {\n\n return _name;\n\n }\n\n\n\n /**\n\n * @dev Returns the symbol of the token, usually a shorter version of the\n\n * name.\n\n */\n\n function symbol() public view returns (string memory) {\n\n return _symbol;\n\n }\n\n\n\n /**\n\n * @dev Returns the number of decimals used to get its user representation.\n\n * For example, if `decimals` equals `2`, a balance of `505` tokens should\n\n * be displayed to a user as `5,05` (`505 / 10 ** 2`).\n\n *\n\n * Tokens usually opt for a value of 18, imitating the relationship between\n\n * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is\n\n * called.\n\n *\n\n * NOTE: This information is only used for _display_ purposes: it in\n\n * no way affects any of the arithmetic of the contract, including\n\n * {IERC20-balanceOf} and {IERC20-transfer}.\n\n */\n\n function decimals() public view returns (uint8) {\n\n return _decimals;\n\n }\n\n\n\n /**\n\n * @dev See {IERC20-totalSupply}.\n\n */\n\n function totalSupply() public view override returns (uint256) {\n\n return _totalSupply;\n\n }\n\n\n\n /**\n\n * @dev See {IERC20-balanceOf}.\n\n */\n\n function balanceOf(address account) public view override returns (uint256) {\n\n return _balances[account];\n\n }\n\n\n\n /**\n\n * @dev See {IERC20-transfer}.\n\n *\n\n * Requirements:\n\n *\n\n * - `recipient` cannot be the zero address.\n\n * - the caller must have a balance of at least `amount`.\n\n */\n\n function transfer(address recipient, uint256 amount)\n\n public\n\n virtual\n\n override\n\n returns (bool)\n\n {\n\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev See {IERC20-allowance}.\n\n */\n\n function allowance(address owner, address spender)\n\n public\n\n view\n\n virtual\n\n override\n\n returns (uint256)\n\n {\n\n return _allowances[owner][spender];\n\n }\n\n\n\n /**\n\n * @dev See {IERC20-approve}.\n\n *\n\n * Requirements:\n\n *\n\n * - `spender` cannot be the zero address.\n\n */\n\n function approve(address spender, uint256 amount)\n\n public\n\n virtual\n\n override\n\n returns (bool)\n\n {\n\n _approve(_msgSender(), spender, amount);\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev See {IERC20-transferFrom}.\n\n *\n\n * Emits an {Approval} event indicating the updated allowance. This is not\n\n * required by the EIP. See the note at the beginning of {ERC20};\n\n *\n\n * Requirements:\n\n * - `sender` and `recipient` cannot be the zero address.\n\n * - `sender` must have a balance of at least `amount`.\n\n * - the caller must have allowance for ``sender``'s tokens of at least\n\n * `amount`.\n\n */\n\n function transferFrom(address sender, address recipient, uint256 amount)\n\n public\n\n virtual\n\n override\n\n returns (bool)\n\n {\n\n _transfer(sender, recipient, amount);\n\n _approve(\n\n sender,\n\n _msgSender(),\n\n _allowances[sender][_msgSender()].sub(\n\n amount,\n\n \"ERC20: transfer amount exceeds allowance\"\n\n )\n\n );\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev Atomically increases the allowance granted to `spender` by the caller.\n\n *\n\n * This is an alternative to {approve} that can be used as a mitigation for\n\n * problems described in {IERC20-approve}.\n\n *\n\n * Emits an {Approval} event indicating the updated allowance.\n\n *\n\n * Requirements:\n\n *\n\n * - `spender` cannot be the zero address.\n\n */\n\n function increaseAllowance(address spender, uint256 addedValue)\n\n public\n\n virtual\n\n returns (bool)\n\n {\n\n _approve(\n\n _msgSender(),\n\n spender,\n\n _allowances[_msgSender()][spender].add(addedValue)\n\n );\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev Atomically decreases the allowance granted to `spender` by the caller.\n\n *\n\n * This is an alternative to {approve} that can be used as a mitigation for\n\n * problems described in {IERC20-approve}.\n\n *\n\n * Emits an {Approval} event indicating the updated allowance.\n\n *\n\n * Requirements:\n\n *\n\n * - `spender` cannot be the zero address.\n\n * - `spender` must have allowance for the caller of at least\n\n * `subtractedValue`.\n\n */\n\n function decreaseAllowance(address spender, uint256 subtractedValue)\n\n public\n\n virtual\n\n returns (bool)\n\n {\n\n _approve(\n\n _msgSender(),\n\n spender,\n\n _allowances[_msgSender()][spender].sub(\n\n subtractedValue,\n\n \"ERC20: decreased allowance below zero\"\n\n )\n\n );\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev Moves tokens `amount` from `sender` to `recipient`.\n\n *\n\n * This is internal function is equivalent to {transfer}, and can be used to\n\n * e.g. implement automatic token fees, slashing mechanisms, etc.\n\n *\n\n * Emits a {Transfer} event.\n\n *\n\n * Requirements:\n\n *\n\n * - `sender` cannot be the zero address.\n\n * - `recipient` cannot be the zero address.\n\n * - `sender` must have a balance of at least `amount`.\n\n */\n\n function _transfer(address sender, address recipient, uint256 amount)\n\n internal\n\n virtual\n\n {\n\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n\n\n _beforeTokenTransfer(sender, recipient, amount);\n\n\n\n _balances[sender] = _balances[sender].sub(\n\n amount,\n\n \"ERC20: transfer amount exceeds balance\"\n\n );\n\n _balances[recipient] = _balances[recipient].add(amount);\n\n emit Transfer(sender, recipient, amount);\n\n }\n\n\n\n /** @dev Creates `amount` tokens and assigns them to `account`, increasing\n\n * the total supply.\n\n *\n\n * Emits a {Transfer} event with `from` set to the zero address.\n\n *\n\n * Requirements\n\n *\n\n * - `to` cannot be the zero address.\n\n */\n\n function _mint(address account, uint256 amount) internal virtual {\n\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n\n\n _beforeTokenTransfer(address(0), account, amount);\n\n\n\n _totalSupply = _totalSupply.add(amount);\n\n _balances[account] = _balances[account].add(amount);\n\n emit Transfer(address(0), account, amount);\n\n }\n\n\n\n /**\n\n * @dev Destroys `amount` tokens from `account`, reducing the\n\n * total supply.\n\n *\n\n * Emits a {Transfer} event with `to` set to the zero address.\n\n *\n\n * Requirements\n\n *\n\n * - `account` cannot be the zero address.\n\n * - `account` must have at least `amount` tokens.\n\n */\n\n function _burn(address account, uint256 amount) internal virtual {\n\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n\n\n _beforeTokenTransfer(account, address(0), amount);\n\n\n\n _balances[account] = _balances[account].sub(\n\n amount,\n\n \"ERC20: burn amount exceeds balance\"\n\n );\n\n _totalSupply = _totalSupply.sub(amount);\n\n emit Transfer(account, address(0), amount);\n\n }\n\n\n\n /**\n\n * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.\n\n *\n\n * This internal function is equivalent to `approve`, and can be used to\n\n * e.g. set automatic allowances for certain subsystems, etc.\n\n *\n\n * Emits an {Approval} event.\n\n *\n\n * Requirements:\n\n *\n\n * - `owner` cannot be the zero address.\n\n * - `spender` cannot be the zero address.\n\n */\n\n function _approve(address owner, address spender, uint256 amount)\n\n internal\n\n virtual\n\n {\n\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n\n }\n\n\n\n /**\n\n * @dev Sets {decimals} to a value other than the default one of 18.\n\n *\n\n * WARNING: This function should only be called from the constructor. Most\n\n * applications that interact with token contracts will not expect\n\n * {decimals} to ever change, and may work incorrectly if it does.\n\n */\n\n function _setupDecimals(uint8 decimals_) internal {\n\n _decimals = decimals_;\n\n }\n\n\n\n function _changeName(string memory name_) internal {\n\n _name = name_;\n\n }\n\n\n\n function _changeSymbol(string memory symbol_) internal {\n\n _symbol = symbol_;\n\n }\n\n\n\n /**\n\n * @dev Hook that is called before any transfer of tokens. This includes\n\n * minting and burning.\n\n *\n\n * Calling conditions:\n\n *\n\n * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n\n * will be to transferred to `to`.\n\n * - when `from` is zero, `amount` tokens will be minted for `to`.\n\n * - when `to` is zero, `amount` of ``from``'s tokens will be burned.\n\n * - `from` and `to` are never both zero.\n\n *\n\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n\n */\n\n function _beforeTokenTransfer(address from, address to, uint256 amount)\n\n internal\n\n virtual\n\n {}\n\n}\n\nabstract contract ERC20Burnable is Context, ERC20 {\n\n /**\n\n * @dev Destroys `amount` tokens from the caller.\n\n *\n\n * See {ERC20-_burn}.\n\n */\n\n function burn(uint256 amount) public virtual {\n\n _burn(_msgSender(), amount);\n\n }\n\n\n\n /**\n\n * @dev Destroys `amount` tokens from `account`, deducting from the caller's\n\n * allowance.\n\n *\n\n * See {ERC20-_burn} and {ERC20-allowance}.\n\n *\n\n * Requirements:\n\n *\n\n * - the caller must have allowance for ``accounts``'s tokens of at least\n\n * `amount`.\n\n */\n\n function burnFrom(address account, uint256 amount) public virtual {\n\n uint256 decreasedAllowance = allowance(account, _msgSender()).sub(\n\n amount,\n\n \"ERC20: burn amount exceeds allowance\"\n\n );\n\n\n\n _approve(account, _msgSender(), decreasedAllowance);\n\n _burn(account, amount);\n\n }\n\n}\n\ncontract PunkToken is Context, Ownable, ERC20Burnable {\n\n address private vaultAddress;\n\n\n\n constructor(string memory name, string memory symbol)\n\n public\n\n ERC20(name, symbol)\n\n {\n\n _mint(msg.sender, 0);\n\n }\n\n\n\n function mint(address to, uint256 amount) public onlyOwner {\n\n _mint(to, amount);\n\n }\n\n\n\n function changeName(string memory name) public onlyOwner {\n\n _changeName(name);\n\n }\n\n\n\n function changeSymbol(string memory symbol) public onlyOwner {\n\n _changeSymbol(symbol);\n\n }\n\n\n\n function getVaultAddress() public view returns (address) {\n\n return vaultAddress;\n\n }\n\n\n\n function setVaultAddress(address newAddress) public onlyOwner {\n\n vaultAddress = newAddress;\n\n }\n\n}\n\ncontract PunkVaultSafe is PunkVaultBase, ReentrancyGuard {\n\n using EnumerableSet for EnumerableSet.UintSet;\n\n EnumerableSet.UintSet private reserves;\n\n bool private inSafeMode = true;\n\n\n\n event TokenBurnedSafely(uint256 punkId, address indexed to);\n\n\n\n function getReserves()\n\n internal\n\n view\n\n returns (EnumerableSet.UintSet storage)\n\n {\n\n return reserves;\n\n }\n\n\n\n function getInSafeMode() public view returns (bool) {\n\n return inSafeMode;\n\n }\n\n\n\n function turnOffSafeMode() public onlyOwner {\n\n inSafeMode = false;\n\n }\n\n\n\n function turnOnSafeMode() public onlyOwner {\n\n inSafeMode = true;\n\n }\n\n\n\n modifier whenNotInSafeMode {\n\n require(!inSafeMode, \"Contract is in safe mode\");\n\n _;\n\n }\n\n\n\n function simpleRedeem() public whenPaused nonReentrant {\n\n require(\n\n getERC20().balanceOf(msg.sender) >= 10**18,\n\n \"ERC20 balance too small\"\n\n );\n\n require(\n\n getERC20().allowance(msg.sender, address(this)) >= 10**18,\n\n \"ERC20 allowance too small\"\n\n );\n\n uint256 tokenId = reserves.at(0);\n\n getERC20().burnFrom(msg.sender, 10**18);\n\n reserves.remove(tokenId);\n\n getCPM().transferPunk(msg.sender, tokenId);\n\n emit TokenBurnedSafely(tokenId, msg.sender);\n\n }\n\n}\n\ncontract Timelocked is PunkVaultSafe {\n\n using SafeMath for uint256;\n\n enum Timelock {Short, Medium, Long}\n\n\n\n uint256 private securityLevel;\n\n\n\n function getSecurityLevel() public view returns (string memory) {\n\n if (securityLevel == 0) {\n\n return \"red\";\n\n } else if (securityLevel == 1) {\n\n return \"orange\";\n\n } else if (securityLevel == 2) {\n\n return \"yellow\";\n\n } else {\n\n return \"green\";\n\n }\n\n }\n\n\n\n function increaseSecurityLevel() public onlyOwner {\n\n require(securityLevel < 3, \"Already max\");\n\n securityLevel = securityLevel + 1;\n\n }\n\n\n\n function timeInDays(uint256 num) internal pure returns (uint256) {\n\n return num * 60 * 60 * 24;\n\n }\n\n\n\n function getDelay(Timelock lockId) public view returns (uint256) {\n\n if (securityLevel == 0) {\n\n return 2; // for testing\n\n }\n\n if (lockId == Timelock.Short) {\n\n if (securityLevel == 1) {\n\n return timeInDays(1);\n\n } else if (securityLevel == 2) {\n\n return timeInDays(2);\n\n } else {\n\n return timeInDays(3);\n\n }\n\n } else if (lockId == Timelock.Medium) {\n\n if (securityLevel == 1) {\n\n return timeInDays(2);\n\n } else if (securityLevel == 2) {\n\n return timeInDays(3);\n\n } else {\n\n return timeInDays(5);\n\n }\n\n } else {\n\n if (securityLevel == 1) {\n\n return timeInDays(3);\n\n } else if (securityLevel == 2) {\n\n return timeInDays(5);\n\n } else {\n\n return timeInDays(10);\n\n }\n\n }\n\n }\n\n\n\n mapping(Timelock => uint256) private releaseTimes;\n\n\n\n event Locked(Timelock lockId);\n\n\n\n event UnlockInitiated(Timelock lockId, uint256 whenUnlocked);\n\n\n\n function getReleaseTime(Timelock lockId) public view returns (uint256) {\n\n return releaseTimes[lockId];\n\n }\n\n\n\n function initiateUnlock(Timelock lockId) public onlyOwner {\n\n uint256 newReleaseTime = now.add(getDelay(lockId));\n\n releaseTimes[lockId] = newReleaseTime;\n\n emit UnlockInitiated(lockId, newReleaseTime);\n\n }\n\n\n\n function lock(Timelock lockId) public onlyOwner {\n\n releaseTimes[lockId] = 0;\n\n emit Locked(lockId);\n\n }\n\n\n\n modifier whenNotLockedS {\n\n uint256 releaseTime = releaseTimes[Timelock.Short];\n\n require(releaseTime > 0, \"Locked\");\n\n require(now > releaseTime, \"Not unlocked\");\n\n _;\n\n }\n\n modifier whenNotLockedM {\n\n uint256 releaseTime = releaseTimes[Timelock.Medium];\n\n require(releaseTime > 0, \"Locked\");\n\n require(now > releaseTime, \"Not unlocked\");\n\n _;\n\n }\n\n modifier whenNotLockedL {\n\n uint256 releaseTime = releaseTimes[Timelock.Long];\n\n require(releaseTime > 0, \"Locked\");\n\n require(now > releaseTime, \"Not unlocked\");\n\n _;\n\n }\n\n}\n\ncontract Profitable is Timelocked {\n\n mapping(address => bool) private verifiedIntegrators;\n\n uint256 private numIntegrators = 0;\n\n uint256[] private mintFees = [0, 0, 0];\n\n uint256[] private burnFees = [0, 0, 0];\n\n uint256[] private dualFees = [0, 0, 0];\n\n uint256[] private supplierBounty = [(5 * 10**18), 10];\n\n\n\n event MintFeesSet(uint256[] mintFees);\n\n event BurnFeesSet(uint256[] burnFees);\n\n event DualFeesSet(uint256[] dualFees);\n\n event SupplierBountySet(uint256[] supplierBounty);\n\n event IntegratorSet(address account, bool isVerified);\n\n event Withdrawal(address to, uint256 amount);\n\n\n\n function getMintFees() public view returns (uint256[] memory) {\n\n return mintFees;\n\n }\n\n\n\n function getBurnFees() public view returns (uint256[] memory) {\n\n return burnFees;\n\n }\n\n\n\n function getDualFees() public view returns (uint256[] memory) {\n\n return dualFees;\n\n }\n\n\n\n function getSupplierBounty() public view returns (uint256[] memory) {\n\n return supplierBounty;\n\n }\n\n\n\n function _getMintFees() internal view returns (uint256[] storage) {\n\n return mintFees;\n\n }\n\n\n\n function _getBurnFees() internal view returns (uint256[] storage) {\n\n return burnFees;\n\n }\n\n\n\n function _getDualFees() internal view returns (uint256[] storage) {\n\n return dualFees;\n\n }\n\n\n\n function setMintFees(uint256[] memory newMintFees)\n\n public\n\n onlyOwner\n\n whenNotLockedM\n\n {\n\n require(newMintFees.length == 3, \"Wrong length\");\n\n mintFees = newMintFees;\n\n emit MintFeesSet(newMintFees);\n\n }\n\n\n\n function setBurnFees(uint256[] memory newBurnFees)\n\n public\n\n onlyOwner\n\n whenNotLockedL\n\n {\n\n require(newBurnFees.length == 3, \"Wrong length\");\n\n burnFees = newBurnFees;\n\n emit BurnFeesSet(newBurnFees);\n\n }\n\n\n\n function setDualFees(uint256[] memory newDualFees)\n\n public\n\n onlyOwner\n\n whenNotLockedM\n\n {\n\n require(newDualFees.length == 3, \"Wrong length\");\n\n dualFees = newDualFees;\n\n emit DualFeesSet(newDualFees);\n\n }\n\n\n\n function setSupplierBounty(uint256[] memory newSupplierBounty)\n\n public\n\n onlyOwner\n\n whenNotLockedL\n\n {\n\n require(newSupplierBounty.length == 2, \"Wrong length\");\n\n supplierBounty = newSupplierBounty;\n\n emit SupplierBountySet(newSupplierBounty);\n\n }\n\n\n\n function isIntegrator(address account) public view returns (bool) {\n\n return verifiedIntegrators[account];\n\n }\n\n\n\n function getNumIntegrators() public view returns (uint256) {\n\n return numIntegrators;\n\n }\n\n\n\n function setIntegrator(address account, bool isVerified)\n\n public\n\n onlyOwner\n\n whenNotLockedM\n\n {\n\n require(isVerified != verifiedIntegrators[account], \"Already set\");\n\n if (isVerified) {\n\n numIntegrators = numIntegrators.add(1);\n\n } else {\n\n numIntegrators = numIntegrators.sub(1);\n\n }\n\n verifiedIntegrators[account] = isVerified;\n\n emit IntegratorSet(account, isVerified);\n\n }\n\n\n\n function getFee(address account, uint256 numTokens, uint256[] storage fees)\n\n internal\n\n view\n\n returns (uint256)\n\n {\n\n uint256 fee = 0;\n\n if (verifiedIntegrators[account]) {\n\n return 0;\n\n } else if (numTokens == 1) {\n\n fee = fees[0];\n\n } else {\n\n fee = fees[1] + numTokens * fees[2];\n\n }\n\n return fee;\n\n }\n\n\n\n function getBurnBounty(uint256 numTokens) internal view returns (uint256) {\n\n uint256 bounty = 0;\n\n uint256 reservesLength = getReserves().length();\n\n uint256 padding = supplierBounty[1];\n\n if (reservesLength - numTokens <= padding) {\n\n uint256 addedAmount = 0;\n\n for (uint256 i = 0; i < numTokens; i++) {\n\n if (reservesLength - i <= padding && reservesLength - i > 0) {\n\n addedAmount += (supplierBounty[0] *\n\n (padding - (reservesLength - i) + 1));\n\n }\n\n }\n\n bounty += addedAmount;\n\n }\n\n return bounty;\n\n }\n\n\n\n function getMintBounty(uint256 numTokens) internal view returns (uint256) {\n\n uint256 bounty = 0;\n\n uint256 reservesLength = getReserves().length();\n\n uint256 padding = supplierBounty[1];\n\n if (reservesLength <= padding) {\n\n uint256 addedAmount = 0;\n\n for (uint256 i = 0; i < numTokens; i++) {\n\n if (reservesLength + i <= padding) {\n\n addedAmount += (supplierBounty[0] *\n\n (padding - (reservesLength + i)));\n\n }\n\n }\n\n bounty += addedAmount;\n\n }\n\n return bounty;\n\n }\n\n\n\n function withdraw(address payable to) public onlyOwner whenNotLockedM {\n\n uint256 balance = address(this).balance;\n\n to.transfer(balance);\n\n emit Withdrawal(to, balance);\n\n }\n\n}\n\ncontract Controllable is Profitable {\n\n mapping(address => bool) private verifiedControllers;\n\n uint256 private numControllers = 0;\n\n\n\n event ControllerSet(address account, bool isVerified);\n\n event DirectRedemption(uint256 punkId, address by, address indexed to);\n\n\n\n function isController(address account) public view returns (bool) {\n\n return verifiedControllers[account];\n\n }\n\n\n\n function getNumControllers() public view returns (uint256) {\n\n return numControllers;\n\n }\n\n\n\n function setController(address account, bool isVerified)\n\n public\n\n onlyOwner\n\n whenNotLockedM\n\n {\n\n require(isVerified != verifiedControllers[account], \"Already set\");\n\n if (isVerified) {\n\n numControllers++;\n\n } else {\n\n numControllers--;\n\n }\n\n verifiedControllers[account] = isVerified;\n\n emit ControllerSet(account, isVerified);\n\n }\n\n\n\n modifier onlyController() {\n\n require(isController(_msgSender()), \"Not a controller\");\n\n _;\n\n }\n\n\n\n function directRedeem(uint256 tokenId, address to) public onlyController {\n\n require(getERC20().balanceOf(to) >= 10**18, \"ERC20 balance too small\");\n\n bool toSelf = (to == address(this));\n\n require(\n\n toSelf || (getERC20().allowance(to, address(this)) >= 10**18),\n\n \"ERC20 allowance too small\"\n\n );\n\n require(getReserves().contains(tokenId), \"Not in holdings\");\n\n getERC20().burnFrom(to, 10**18);\n\n getReserves().remove(tokenId);\n\n if (!toSelf) {\n\n getCPM().transferPunk(to, tokenId);\n\n }\n\n emit DirectRedemption(tokenId, _msgSender(), to);\n\n }\n\n}\n\ncontract Randomizable is Controllable {\n\n uint256 private randNonce = 0;\n\n\n\n function getPseudoRand(uint256 modulus) internal returns (uint256) {\n\n randNonce = randNonce.add(1);\n\n return\n\n uint256(keccak256(abi.encodePacked(now, _msgSender(), randNonce))) %\n\n modulus;\n\n }\n\n}\n\ncontract Manageable is Randomizable {\n\n event MigrationComplete(address to);\n\n event TokenNameChange(string name);\n\n event TokenSymbolChange(string symbol);\n\n\n\n function migrate(address to, uint256 max) public onlyOwner whenNotLockedL {\n\n uint256 count = 0;\n\n uint256 reservesLength = getReserves().length();\n\n for (uint256 i = 0; i < reservesLength; i++) {\n\n if (count >= max) {\n\n return;\n\n }\n\n uint256 tokenId = getReserves().at(0);\n\n getCPM().transferPunk(to, tokenId);\n\n getReserves().remove(tokenId);\n\n count = count.add(1);\n\n }\n\n getERC20().transferOwnership(to);\n\n emit MigrationComplete(to);\n\n }\n\n\n\n function changeTokenName(string memory newName)\n\n public\n\n onlyOwner\n\n whenNotLockedM\n\n {\n\n getERC20().changeName(newName);\n\n emit TokenNameChange(newName);\n\n }\n\n\n\n function changeTokenSymbol(string memory newSymbol)\n\n public\n\n onlyOwner\n\n whenNotLockedM\n\n {\n\n getERC20().changeSymbol(newSymbol);\n\n emit TokenSymbolChange(newSymbol);\n\n }\n\n\n\n function setReverseLink() public onlyOwner {\n\n getERC20().setVaultAddress(address(this));\n\n }\n\n}\n\ncontract PunkVault is Manageable {\n\n event TokenMinted(uint256 tokenId, address indexed to);\n\n event TokensMinted(uint256[] tokenIds, address indexed to);\n\n event TokenBurned(uint256 tokenId, address indexed to);\n\n event TokensBurned(uint256[] tokenIds, address indexed to);\n\n\n\n constructor(address erc20Address, address cpmAddress) public {\n\n setERC20Address(erc20Address);\n\n setCpmAddress(cpmAddress);\n\n }\n\n\n\n function getCryptoPunkAtIndex(uint256 index) public view returns (uint256) {\n\n return getReserves().at(index);\n\n }\n\n\n\n function getReservesLength() public view returns (uint256) {\n\n return getReserves().length();\n\n }\n\n\n\n function isCryptoPunkDeposited(uint256 tokenId) public view returns (bool) {\n\n return getReserves().contains(tokenId);\n\n }\n\n\n\n function mintPunk(uint256 tokenId)\n\n public\n\n payable\n\n nonReentrant\n\n whenNotPaused\n\n {\n\n uint256 fee = getFee(_msgSender(), 1, _getMintFees());\n\n uint256 bounty = getMintBounty(1);\n\n if (fee > bounty) {\n\n uint256 differnce = fee.sub(bounty);\n\n require(msg.value >= differnce, \"Value too low\");\n\n }\n\n bool success = _mintPunk(tokenId, false);\n\n if (success && bounty > fee) {\n\n uint256 difference = bounty.sub(fee);\n\n uint256 balance = address(this).balance;\n\n address payable sender = _msgSender();\n\n if (balance >= difference) {\n\n sender.transfer(difference);\n\n } else {\n\n sender.transfer(balance);\n\n }\n\n }\n\n }\n\n\n\n function _mintPunk(uint256 tokenId, bool partOfDualOp)\n\n private\n\n returns (bool)\n\n {\n\n address msgSender = _msgSender();\n\n\n\n require(tokenId < 10000, \"tokenId too high\");\n\n (bool forSale, uint256 _tokenId, address seller, uint256 minVal, address buyer) = getCPM()\n\n .punksOfferedForSale(tokenId);\n\n require(_tokenId == tokenId, \"Wrong punk\");\n\n require(forSale, \"Punk not available\");\n\n require(buyer == address(this), \"Transfer not approved\");\n\n require(minVal == 0, \"Min value not zero\");\n\n require(msgSender == seller, \"Sender is not seller\");\n\n require(\n\n msgSender == getCPM().punkIndexToAddress(tokenId),\n\n \"Sender is not owner\"\n\n );\n\n getCPM().buyPunk(tokenId);\n\n getReserves().add(tokenId);\n\n if (!partOfDualOp) {\n\n uint256 tokenAmount = 10**18;\n\n getERC20().mint(msgSender, tokenAmount);\n\n }\n\n emit TokenMinted(tokenId, _msgSender());\n\n return true;\n\n }\n\n\n\n function mintPunkMultiple(uint256[] memory tokenIds)\n\n public\n\n payable\n\n nonReentrant\n\n whenNotPaused\n\n whenNotInSafeMode\n\n {\n\n uint256 fee = getFee(_msgSender(), tokenIds.length, _getMintFees());\n\n uint256 bounty = getMintBounty(tokenIds.length);\n\n require(bounty >= fee || msg.value >= fee.sub(bounty), \"Value too low\");\n\n uint256 numTokens = _mintPunkMultiple(tokenIds, false);\n\n require(numTokens > 0, \"No tokens minted\");\n\n require(numTokens == tokenIds.length, \"Untransferable punks\");\n\n if (fee > bounty) {\n\n uint256 differnce = fee.sub(bounty);\n\n require(msg.value >= differnce, \"Value too low\");\n\n }\n\n if (bounty > fee) {\n\n uint256 difference = bounty.sub(fee);\n\n uint256 balance = address(this).balance;\n\n address payable sender = _msgSender();\n\n if (balance >= difference) {\n\n sender.transfer(difference);\n\n } else {\n\n sender.transfer(balance);\n\n }\n\n }\n\n\n\n }\n\n\n\n function _mintPunkMultiple(uint256[] memory tokenIds, bool partOfDualOp)\n\n private\n\n returns (uint256)\n\n {\n\n require(tokenIds.length > 0, \"No tokens\");\n\n require(tokenIds.length <= 100, \"Over 100 tokens\");\n\n uint256[] memory newTokenIds = new uint256[](tokenIds.length);\n\n uint256 numNewTokens = 0;\n\n address msgSender = _msgSender();\n\n for (uint256 i = 0; i < tokenIds.length; i++) {\n\n uint256 tokenId = tokenIds[i];\n\n require(tokenId < 10000, \"tokenId too high\");\n\n (bool forSale, uint256 _tokenId, address seller, uint256 minVal, address buyer) = getCPM()\n\n .punksOfferedForSale(tokenId);\n\n bool rightToken = _tokenId == tokenId;\n\n bool isApproved = buyer == address(this);\n\n bool priceIsZero = minVal == 0;\n\n bool isSeller = msgSender == seller;\n\n bool isOwner = msgSender == getCPM().punkIndexToAddress(tokenId);\n\n if (\n\n forSale &&\n\n rightToken &&\n\n isApproved &&\n\n priceIsZero &&\n\n isSeller &&\n\n isOwner\n\n ) {\n\n getCPM().buyPunk(tokenId);\n\n getReserves().add(tokenId);\n\n newTokenIds[numNewTokens] = tokenId;\n\n numNewTokens = numNewTokens.add(1);\n\n }\n\n }\n\n if (numNewTokens > 0) {\n\n if (!partOfDualOp) {\n\n uint256 tokenAmount = numNewTokens * (10**18);\n\n getERC20().mint(msgSender, tokenAmount);\n\n }\n\n emit TokensMinted(newTokenIds, msgSender);\n\n }\n\n return numNewTokens;\n\n }\n\n\n\n function redeemPunk() public payable nonReentrant whenNotPaused {\n\n uint256 fee = getFee(_msgSender(), 1, _getBurnFees()) +\n\n getBurnBounty(1);\n\n require(msg.value >= fee, \"Value too low\");\n\n _redeemPunk(false);\n\n }\n\n\n\n function _redeemPunk(bool partOfDualOp) private {\n\n address msgSender = _msgSender();\n\n uint256 tokenAmount = 10**18;\n\n require(\n\n partOfDualOp || (getERC20().balanceOf(msgSender) >= tokenAmount),\n\n \"ERC20 balance too small\"\n\n );\n\n require(\n\n partOfDualOp ||\n\n (getERC20().allowance(msgSender, address(this)) >= tokenAmount),\n\n \"ERC20 allowance too small\"\n\n );\n\n uint256 reservesLength = getReserves().length();\n\n uint256 randomIndex = getPseudoRand(reservesLength);\n\n uint256 tokenId = getReserves().at(randomIndex);\n\n if (!partOfDualOp) {\n\n getERC20().burnFrom(msgSender, tokenAmount);\n\n }\n\n getReserves().remove(tokenId);\n\n getCPM().transferPunk(msgSender, tokenId);\n\n emit TokenBurned(tokenId, msgSender);\n\n }\n\n\n\n function redeemPunkMultiple(uint256 numTokens)\n\n public\n\n payable\n\n nonReentrant\n\n whenNotPaused\n\n whenNotInSafeMode\n\n {\n\n uint256 fee = getFee(_msgSender(), numTokens, _getBurnFees()) +\n\n getBurnBounty(numTokens);\n\n require(msg.value >= fee, \"Value too low\");\n\n _redeemPunkMultiple(numTokens, false);\n\n }\n\n\n\n function _redeemPunkMultiple(uint256 numTokens, bool partOfDualOp) private {\n\n require(numTokens > 0, \"No tokens\");\n\n require(numTokens <= 100, \"Over 100 tokens\");\n\n address msgSender = _msgSender();\n\n uint256 tokenAmount = numTokens * (10**18);\n\n require(\n\n partOfDualOp || (getERC20().balanceOf(msgSender) >= tokenAmount),\n\n \"ERC20 balance too small\"\n\n );\n\n require(\n\n partOfDualOp ||\n\n (getERC20().allowance(msgSender, address(this)) >= tokenAmount),\n\n \"ERC20 allowance too small\"\n\n );\n\n if (!partOfDualOp) {\n\n getERC20().burnFrom(msgSender, tokenAmount);\n\n }\n\n uint256[] memory tokenIds = new uint256[](numTokens);\n\n for (uint256 i = 0; i < numTokens; i++) {\n\n uint256 reservesLength = getReserves().length();\n\n uint256 randomIndex = getPseudoRand(reservesLength);\n\n uint256 tokenId = getReserves().at(randomIndex);\n\n tokenIds[i] = tokenId;\n\n getReserves().remove(tokenId);\n\n getCPM().transferPunk(msgSender, tokenId);\n\n }\n\n emit TokensBurned(tokenIds, msgSender);\n\n }\n\n\n\n function mintAndRedeem(uint256 tokenId)\n\n public\n\n payable\n\n nonReentrant\n\n whenNotPaused\n\n whenNotInSafeMode\n\n {\n\n uint256 fee = getFee(_msgSender(), 1, _getDualFees());\n\n require(msg.value >= fee, \"Value too low\");\n\n require(_mintPunk(tokenId, true), \"Minting failed\");\n\n _redeemPunk(true);\n\n }\n\n\n\n function mintAndRedeemMultiple(uint256[] memory tokenIds)\n\n public\n\n payable\n\n nonReentrant\n\n whenNotPaused\n\n whenNotInSafeMode\n\n {\n\n uint256 numTokens = tokenIds.length;\n\n require(numTokens > 0, \"No tokens\");\n\n require(numTokens <= 20, \"Over 20 tokens\");\n\n uint256 fee = getFee(_msgSender(), numTokens, _getDualFees());\n\n require(msg.value >= fee, \"Value too low\");\n\n uint256 numTokensMinted = _mintPunkMultiple(tokenIds, true);\n\n if (numTokensMinted > 0) {\n\n _redeemPunkMultiple(numTokens, true);\n\n }\n\n }\n\n\n\n function mintRetroactively(uint256 tokenId, address to)\n\n public\n\n onlyOwner\n\n whenNotLockedS\n\n {\n\n require(\n\n getCPM().punkIndexToAddress(tokenId) == address(this),\n\n \"Not owner\"\n\n );\n\n require(!getReserves().contains(tokenId), \"Already in reserves\");\n\n uint256 cryptoPunkBalance = getCPM().balanceOf(address(this));\n\n require(\n\n (getERC20().totalSupply() / (10**18)) < cryptoPunkBalance,\n\n \"No excess NFTs\"\n\n );\n\n getReserves().add(tokenId);\n\n getERC20().mint(to, 10**18);\n\n emit TokenMinted(tokenId, _msgSender());\n\n }\n\n\n\n function redeemRetroactively(address to) public onlyOwner whenNotLockedS {\n\n require(\n\n getERC20().balanceOf(address(this)) >= (10**18),\n\n \"Not enough PUNK\"\n\n );\n\n getERC20().burn(10**18);\n\n uint256 reservesLength = getReserves().length();\n\n uint256 randomIndex = getPseudoRand(reservesLength);\n\n\n\n uint256 tokenId = getReserves().at(randomIndex);\n\n getReserves().remove(tokenId);\n\n getCPM().transferPunk(to, tokenId);\n\n emit TokenBurned(tokenId, _msgSender());\n\n }\n\n}\n"},"bytecode":{"kind":"string","value":"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0":{"kind":"number","value":685,"string":"685"},"address":{"kind":"string","value":"0xf295b379960fc5eb0ae717ea14c43f75c6049f4d"},"source_code":{"kind":"string","value":"pragma solidity 0.6.10;\npragma experimental ABIEncoderV2;\n\nlibrary Address {\n\n /**\n\n * @dev Returns true if `account` is a contract.\n\n *\n\n * [IMPORTANT]\n\n * ====\n\n * It is unsafe to assume that an address for which this function returns\n\n * false is an externally-owned account (EOA) and not a contract.\n\n *\n\n * Among others, `isContract` will return false for the following\n\n * types of addresses:\n\n *\n\n * - an externally-owned account\n\n * - a contract in construction\n\n * - an address where a contract will be created\n\n * - an address where a contract lived, but was destroyed\n\n * ====\n\n */\n\n function isContract(address account) internal view returns (bool) {\n\n // According to EIP-1052, 0x0 is the value returned for not-yet created accounts\n\n // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned\n\n // for accounts without code, i.e. `keccak256('')`\n\n bytes32 codehash;\n\n bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;\n\n // solhint-disable-next-line no-inline-assembly\n\n assembly { codehash := extcodehash(account) }\n\n return (codehash != accountHash && codehash != 0x0);\n\n }\n\n\n\n /**\n\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n\n * `recipient`, forwarding all available gas and reverting on errors.\n\n *\n\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n\n * imposed by `transfer`, making them unable to receive funds via\n\n * `transfer`. {sendValue} removes this limitation.\n\n *\n\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n\n *\n\n * IMPORTANT: because control is transferred to `recipient`, care must be\n\n * taken to not create reentrancy vulnerabilities. Consider using\n\n * {ReentrancyGuard} or the\n\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n\n */\n\n function sendValue(address payable recipient, uint256 amount) internal {\n\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n\n\n // solhint-disable-next-line avoid-low-level-calls, avoid-call-value\n\n (bool success, ) = recipient.call{ value: amount }(\"\");\n\n require(success, \"Address: unable to send value, recipient may have reverted\");\n\n }\n\n}\n\nlibrary EnumerableSet {\n\n // To implement this library for multiple types with as little code\n\n // repetition as possible, we write it in terms of a generic Set type with\n\n // bytes32 values.\n\n // The Set implementation uses private functions, and user-facing\n\n // implementations (such as AddressSet) are just wrappers around the\n\n // underlying Set.\n\n // This means that we can only create new EnumerableSets for types that fit\n\n // in bytes32.\n\n\n\n struct Set {\n\n // Storage of set values\n\n bytes32[] _values;\n\n\n\n // Position of the value in the `values` array, plus 1 because index 0\n\n // means a value is not in the set.\n\n mapping (bytes32 => uint256) _indexes;\n\n }\n\n\n\n /**\n\n * @dev Add a value to a set. O(1).\n\n *\n\n * Returns true if the value was added to the set, that is if it was not\n\n * already present.\n\n */\n\n function _add(Set storage set, bytes32 value) private returns (bool) {\n\n if (!_contains(set, value)) {\n\n set._values.push(value);\n\n // The value is stored at length-1, but we add 1 to all indexes\n\n // and use 0 as a sentinel value\n\n set._indexes[value] = set._values.length;\n\n return true;\n\n } else {\n\n return false;\n\n }\n\n }\n\n\n\n /**\n\n * @dev Removes a value from a set. O(1).\n\n *\n\n * Returns true if the value was removed from the set, that is if it was\n\n * present.\n\n */\n\n function _remove(Set storage set, bytes32 value) private returns (bool) {\n\n // We read and store the value's index to prevent multiple reads from the same storage slot\n\n uint256 valueIndex = set._indexes[value];\n\n\n\n if (valueIndex != 0) { // Equivalent to contains(set, value)\n\n // To delete an element from the _values array in O(1), we swap the element to delete with the last one in\n\n // the array, and then remove the last element (sometimes called as 'swap and pop').\n\n // This modifies the order of the array, as noted in {at}.\n\n\n\n uint256 toDeleteIndex = valueIndex - 1;\n\n uint256 lastIndex = set._values.length - 1;\n\n\n\n // When the value to delete is the last one, the swap operation is unnecessary. However, since this occurs\n\n // so rarely, we still do the swap anyway to avoid the gas cost of adding an 'if' statement.\n\n\n\n bytes32 lastvalue = set._values[lastIndex];\n\n\n\n // Move the last value to the index where the value to delete is\n\n set._values[toDeleteIndex] = lastvalue;\n\n // Update the index for the moved value\n\n set._indexes[lastvalue] = toDeleteIndex + 1; // All indexes are 1-based\n\n\n\n // Delete the slot where the moved value was stored\n\n set._values.pop();\n\n\n\n // Delete the index for the deleted slot\n\n delete set._indexes[value];\n\n\n\n return true;\n\n } else {\n\n return false;\n\n }\n\n }\n\n\n\n /**\n\n * @dev Returns true if the value is in the set. O(1).\n\n */\n\n function _contains(Set storage set, bytes32 value) private view returns (bool) {\n\n return set._indexes[value] != 0;\n\n }\n\n\n\n /**\n\n * @dev Returns the number of values on the set. O(1).\n\n */\n\n function _length(Set storage set) private view returns (uint256) {\n\n return set._values.length;\n\n }\n\n\n\n /**\n\n * @dev Returns the value stored at position `index` in the set. O(1).\n\n *\n\n * Note that there are no guarantees on the ordering of values inside the\n\n * array, and it may change when more values are added or removed.\n\n *\n\n * Requirements:\n\n *\n\n * - `index` must be strictly less than {length}.\n\n */\n\n function _at(Set storage set, uint256 index) private view returns (bytes32) {\n\n require(set._values.length > index, \"EnumerableSet: index out of bounds\");\n\n return set._values[index];\n\n }\n\n\n\n // AddressSet\n\n\n\n struct AddressSet {\n\n Set _inner;\n\n }\n\n\n\n /**\n\n * @dev Add a value to a set. O(1).\n\n *\n\n * Returns true if the value was added to the set, that is if it was not\n\n * already present.\n\n */\n\n function add(AddressSet storage set, address value) internal returns (bool) {\n\n return _add(set._inner, bytes32(uint256(value)));\n\n }\n\n\n\n /**\n\n * @dev Removes a value from a set. O(1).\n\n *\n\n * Returns true if the value was removed from the set, that is if it was\n\n * present.\n\n */\n\n function remove(AddressSet storage set, address value) internal returns (bool) {\n\n return _remove(set._inner, bytes32(uint256(value)));\n\n }\n\n\n\n /**\n\n * @dev Returns true if the value is in the set. O(1).\n\n */\n\n function contains(AddressSet storage set, address value) internal view returns (bool) {\n\n return _contains(set._inner, bytes32(uint256(value)));\n\n }\n\n\n\n /**\n\n * @dev Returns the number of values in the set. O(1).\n\n */\n\n function length(AddressSet storage set) internal view returns (uint256) {\n\n return _length(set._inner);\n\n }\n\n\n\n /**\n\n * @dev Returns the value stored at position `index` in the set. O(1).\n\n *\n\n * Note that there are no guarantees on the ordering of values inside the\n\n * array, and it may change when more values are added or removed.\n\n *\n\n * Requirements:\n\n *\n\n * - `index` must be strictly less than {length}.\n\n */\n\n function at(AddressSet storage set, uint256 index) internal view returns (address) {\n\n return address(uint256(_at(set._inner, index)));\n\n }\n\n\n\n\n\n // UintSet\n\n\n\n struct UintSet {\n\n Set _inner;\n\n }\n\n\n\n /**\n\n * @dev Add a value to a set. O(1).\n\n *\n\n * Returns true if the value was added to the set, that is if it was not\n\n * already present.\n\n */\n\n function add(UintSet storage set, uint256 value) internal returns (bool) {\n\n return _add(set._inner, bytes32(value));\n\n }\n\n\n\n /**\n\n * @dev Removes a value from a set. O(1).\n\n *\n\n * Returns true if the value was removed from the set, that is if it was\n\n * present.\n\n */\n\n function remove(UintSet storage set, uint256 value) internal returns (bool) {\n\n return _remove(set._inner, bytes32(value));\n\n }\n\n\n\n /**\n\n * @dev Returns true if the value is in the set. O(1).\n\n */\n\n function contains(UintSet storage set, uint256 value) internal view returns (bool) {\n\n return _contains(set._inner, bytes32(value));\n\n }\n\n\n\n /**\n\n * @dev Returns the number of values on the set. O(1).\n\n */\n\n function length(UintSet storage set) internal view returns (uint256) {\n\n return _length(set._inner);\n\n }\n\n\n\n /**\n\n * @dev Returns the value stored at position `index` in the set. O(1).\n\n *\n\n * Note that there are no guarantees on the ordering of values inside the\n\n * array, and it may change when more values are added or removed.\n\n *\n\n * Requirements:\n\n *\n\n * - `index` must be strictly less than {length}.\n\n */\n\n function at(UintSet storage set, uint256 index) internal view returns (uint256) {\n\n return uint256(_at(set._inner, index));\n\n }\n\n}\n\ninterface IContractManager {\n\n /**\n\n * @dev Returns the contract address of a given contract name.\n\n *\n\n * Requirements:\n\n *\n\n * - Contract mapping must exist.\n\n */\n\n function getContract(string calldata name) external view returns (address contractAddress);\n\n}\n\ninterface IDelegationController {\n\n\n\n function delegate(\n\n uint256 validatorId,\n\n uint256 amount,\n\n uint256 delegationPeriod,\n\n string calldata info\n\n )\n\n external;\n\n\n\n function requestUndelegation(uint256 delegationId) external;\n\n\n\n function cancelPendingDelegation(uint delegationId) external;\n\n}\n\ninterface IDistributor {\n\n\n\n function withdrawBounty(uint256 validatorId, address to) external;\n\n}\n\ninterface IERC1820Registry {\n\n /**\n\n * @dev Sets `newManager` as the manager for `account`. A manager of an\n\n * account is able to set interface implementers for it.\n\n *\n\n * By default, each account is its own manager. Passing a value of `0x0` in\n\n * `newManager` will reset the manager to this initial state.\n\n *\n\n * Emits a {ManagerChanged} event.\n\n *\n\n * Requirements:\n\n *\n\n * - the caller must be the current manager for `account`.\n\n */\n\n function setManager(address account, address newManager) external;\n\n\n\n /**\n\n * @dev Returns the manager for `account`.\n\n *\n\n * See {setManager}.\n\n */\n\n function getManager(address account) external view returns (address);\n\n\n\n /**\n\n * @dev Sets the `implementer` contract as ``account``'s implementer for\n\n * `interfaceHash`.\n\n *\n\n * `account` being the zero address is an alias for the caller's address.\n\n * The zero address can also be used in `implementer` to remove an old one.\n\n *\n\n * See {interfaceHash} to learn how these are created.\n\n *\n\n * Emits an {InterfaceImplementerSet} event.\n\n *\n\n * Requirements:\n\n *\n\n * - the caller must be the current manager for `account`.\n\n * - `interfaceHash` must not be an {IERC165} interface id (i.e. it must not\n\n * end in 28 zeroes).\n\n * - `implementer` must implement {IERC1820Implementer} and return true when\n\n * queried for support, unless `implementer` is the caller. See\n\n * {IERC1820Implementer-canImplementInterfaceForAddress}.\n\n */\n\n function setInterfaceImplementer(address account, bytes32 interfaceHash, address implementer) external;\n\n\n\n /**\n\n * @dev Returns the implementer of `interfaceHash` for `account`. If no such\n\n * implementer is registered, returns the zero address.\n\n *\n\n * If `interfaceHash` is an {IERC165} interface id (i.e. it ends with 28\n\n * zeroes), `account` will be queried for support of it.\n\n *\n\n * `account` being the zero address is an alias for the caller's address.\n\n */\n\n function getInterfaceImplementer(address account, bytes32 interfaceHash) external view returns (address);\n\n\n\n /**\n\n * @dev Returns the interface hash for an `interfaceName`, as defined in the\n\n * corresponding\n\n * https://eips.ethereum.org/EIPS/eip-1820#interface-name[section of the EIP].\n\n */\n\n function interfaceHash(string calldata interfaceName) external pure returns (bytes32);\n\n\n\n /**\n\n * @notice Updates the cache with whether the contract implements an ERC165 interface or not.\n\n * @param account Address of the contract for which to update the cache.\n\n * @param interfaceId ERC165 interface for which to update the cache.\n\n */\n\n function updateERC165Cache(address account, bytes4 interfaceId) external;\n\n\n\n /**\n\n * @notice Checks whether a contract implements an ERC165 interface or not.\n\n * If the result is not cached a direct lookup on the contract address is performed.\n\n * If the result is not cached or the cached value is out-of-date, the cache MUST be updated manually by calling\n\n * {updateERC165Cache} with the contract address.\n\n * @param account Address of the contract to check.\n\n * @param interfaceId ERC165 interface to check.\n\n * @return True if `account` implements `interfaceId`, false otherwise.\n\n */\n\n function implementsERC165Interface(address account, bytes4 interfaceId) external view returns (bool);\n\n\n\n /**\n\n * @notice Checks whether a contract implements an ERC165 interface or not without using nor updating the cache.\n\n * @param account Address of the contract to check.\n\n * @param interfaceId ERC165 interface to check.\n\n * @return True if `account` implements `interfaceId`, false otherwise.\n\n */\n\n function implementsERC165InterfaceNoCache(address account, bytes4 interfaceId) external view returns (bool);\n\n\n\n event InterfaceImplementerSet(address indexed account, bytes32 indexed interfaceHash, address indexed implementer);\n\n\n\n event ManagerChanged(address indexed account, address indexed newManager);\n\n}\n\ninterface IERC20 {\n\n /**\n\n * @dev Returns the amount of tokens in existence.\n\n */\n\n function totalSupply() external view returns (uint256);\n\n\n\n /**\n\n * @dev Returns the amount of tokens owned by `account`.\n\n */\n\n function balanceOf(address account) external view returns (uint256);\n\n\n\n /**\n\n * @dev Moves `amount` tokens from the caller's account to `recipient`.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * Emits a {Transfer} event.\n\n */\n\n function transfer(address recipient, uint256 amount) external returns (bool);\n\n\n\n /**\n\n * @dev Returns the remaining number of tokens that `spender` will be\n\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n\n * zero by default.\n\n *\n\n * This value changes when {approve} or {transferFrom} are called.\n\n */\n\n function allowance(address owner, address spender) external view returns (uint256);\n\n\n\n /**\n\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n\n * that someone may use both the old and the new allowance by unfortunate\n\n * transaction ordering. One possible solution to mitigate this race\n\n * condition is to first reduce the spender's allowance to 0 and set the\n\n * desired value afterwards:\n\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n\n *\n\n * Emits an {Approval} event.\n\n */\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n\n\n /**\n\n * @dev Moves `amount` tokens from `sender` to `recipient` using the\n\n * allowance mechanism. `amount` is then deducted from the caller's\n\n * allowance.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * Emits a {Transfer} event.\n\n */\n\n function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);\n\n\n\n /**\n\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n\n * another (`to`).\n\n *\n\n * Note that `value` may be zero.\n\n */\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n\n\n /**\n\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n\n * a call to {approve}. `value` is the new allowance.\n\n */\n\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n}\n\ninterface IERC777Recipient {\n\n /**\n\n * @dev Called by an {IERC777} token contract whenever tokens are being\n\n * moved or created into a registered account (`to`). The type of operation\n\n * is conveyed by `from` being the zero address or not.\n\n *\n\n * This call occurs _after_ the token contract's state is updated, so\n\n * {IERC777-balanceOf}, etc., can be used to query the post-operation state.\n\n *\n\n * This function may revert to prevent the operation from being executed.\n\n */\n\n function tokensReceived(\n\n address operator,\n\n address from,\n\n address to,\n\n uint256 amount,\n\n bytes calldata userData,\n\n bytes calldata operatorData\n\n ) external;\n\n}\n\ninterface IERC777Sender {\n\n /**\n\n * @dev Called by an {IERC777} token contract whenever a registered holder's\n\n * (`from`) tokens are about to be moved or destroyed. The type of operation\n\n * is conveyed by `to` being the zero address or not.\n\n *\n\n * This call occurs _before_ the token contract's state is updated, so\n\n * {IERC777-balanceOf}, etc., can be used to query the pre-operation state.\n\n *\n\n * This function may revert to prevent the operation from being executed.\n\n */\n\n function tokensToSend(\n\n address operator,\n\n address from,\n\n address to,\n\n uint256 amount,\n\n bytes calldata userData,\n\n bytes calldata operatorData\n\n ) external;\n\n}\n\ninterface IProxyAdmin {\n\n function getProxyImplementation(address proxy) external view returns (address);\n\n}\n\ninterface IProxyFactory {\n\n function deploy(uint256 _salt, address _logic, address _admin, bytes memory _data) external returns (address);\n\n}\n\ninterface ITimeHelpers {\n\n function getCurrentMonth() external view returns (uint);\n\n function monthToTimestamp(uint month) external view returns (uint timestamp);\n\n}\n\ninterface ITokenState {\n\n\n\n function getAndUpdateLockedAmount(address holder) external returns (uint);\n\n function getAndUpdateForbiddenForDelegationAmount(address holder) external returns (uint);\n\n}\n\ncontract Initializable {\n\n\n\n /**\n\n * @dev Indicates that the contract has been initialized.\n\n */\n\n bool private initialized;\n\n\n\n /**\n\n * @dev Indicates that the contract is in the process of being initialized.\n\n */\n\n bool private initializing;\n\n\n\n /**\n\n * @dev Modifier to use in the initializer function of a contract.\n\n */\n\n modifier initializer() {\n\n require(initializing || isConstructor() || !initialized, \"Contract instance has already been initialized\");\n\n\n\n bool isTopLevelCall = !initializing;\n\n if (isTopLevelCall) {\n\n initializing = true;\n\n initialized = true;\n\n }\n\n\n\n _;\n\n\n\n if (isTopLevelCall) {\n\n initializing = false;\n\n }\n\n }\n\n\n\n /// @dev Returns true if and only if the function is running in the constructor\n\n function isConstructor() private view returns (bool) {\n\n // extcodesize checks the size of the code stored in an address, and\n\n // address returns the current address. Since the code is still not\n\n // deployed when running a constructor, any checks on its code size will\n\n // yield zero, making it an effective way to detect if a contract is\n\n // under construction or not.\n\n address self = address(this);\n\n uint256 cs;\n\n assembly { cs := extcodesize(self) }\n\n return cs == 0;\n\n }\n\n\n\n // Reserved storage space to allow for layout changes in the future.\n\n uint256[50] private ______gap;\n\n}\n\nlibrary SafeMath {\n\n /**\n\n * @dev Returns the addition of two unsigned integers, reverting on\n\n * overflow.\n\n *\n\n * Counterpart to Solidity's `+` operator.\n\n *\n\n * Requirements:\n\n * - Addition cannot overflow.\n\n */\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the subtraction of two unsigned integers, reverting on\n\n * overflow (when the result is negative).\n\n *\n\n * Counterpart to Solidity's `-` operator.\n\n *\n\n * Requirements:\n\n * - Subtraction cannot overflow.\n\n */\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return sub(a, b, \"SafeMath: subtraction overflow\");\n\n }\n\n\n\n /**\n\n * @dev Returns the subtraction of two unsigned integers, reverting with custom message on\n\n * overflow (when the result is negative).\n\n *\n\n * Counterpart to Solidity's `-` operator.\n\n *\n\n * Requirements:\n\n * - Subtraction cannot overflow.\n\n */\n\n function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the multiplication of two unsigned integers, reverting on\n\n * overflow.\n\n *\n\n * Counterpart to Solidity's `*` operator.\n\n *\n\n * Requirements:\n\n * - Multiplication cannot overflow.\n\n */\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n\n // benefit is lost if 'b' is also tested.\n\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n\n if (a == 0) {\n\n return 0;\n\n }\n\n\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the integer division of two unsigned integers. Reverts on\n\n * division by zero. The result is rounded towards zero.\n\n *\n\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n\n * uses an invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n * - The divisor cannot be zero.\n\n */\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return div(a, b, \"SafeMath: division by zero\");\n\n }\n\n\n\n /**\n\n * @dev Returns the integer division of two unsigned integers. Reverts with custom message on\n\n * division by zero. The result is rounded towards zero.\n\n *\n\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n\n * uses an invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n * - The divisor cannot be zero.\n\n */\n\n function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n // Solidity only automatically asserts when dividing by 0\n\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n\n * Reverts when dividing by zero.\n\n *\n\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n\n * invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n * - The divisor cannot be zero.\n\n */\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return mod(a, b, \"SafeMath: modulo by zero\");\n\n }\n\n\n\n /**\n\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n\n * Reverts with custom message when dividing by zero.\n\n *\n\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n\n * invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n * - The divisor cannot be zero.\n\n */\n\n function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n require(b != 0, errorMessage);\n\n return a % b;\n\n }\n\n}\n\ncontract ContextUpgradeSafe is Initializable {\n\n // Empty internal constructor, to prevent people from mistakenly deploying\n\n // an instance of this contract, which should be used via inheritance.\n\n\n\n function __Context_init() internal initializer {\n\n __Context_init_unchained();\n\n }\n\n\n\n function __Context_init_unchained() internal initializer {\n\n\n\n\n\n }\n\n\n\n\n\n function _msgSender() internal view virtual returns (address payable) {\n\n return msg.sender;\n\n }\n\n\n\n function _msgData() internal view virtual returns (bytes memory) {\n\n this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691\n\n return msg.data;\n\n }\n\n\n\n uint256[50] private __gap;\n\n}\n\nabstract contract AccessControlUpgradeSafe is Initializable, ContextUpgradeSafe {\n\n function __AccessControl_init() internal initializer {\n\n __Context_init_unchained();\n\n __AccessControl_init_unchained();\n\n }\n\n\n\n function __AccessControl_init_unchained() internal initializer {\n\n\n\n\n\n }\n\n\n\n using EnumerableSet for EnumerableSet.AddressSet;\n\n using Address for address;\n\n\n\n struct RoleData {\n\n EnumerableSet.AddressSet members;\n\n bytes32 adminRole;\n\n }\n\n\n\n mapping (bytes32 => RoleData) private _roles;\n\n\n\n bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;\n\n\n\n /**\n\n * @dev Emitted when `account` is granted `role`.\n\n *\n\n * `sender` is the account that originated the contract call, an admin role\n\n * bearer except when using {_setupRole}.\n\n */\n\n event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);\n\n\n\n /**\n\n * @dev Emitted when `account` is revoked `role`.\n\n *\n\n * `sender` is the account that originated the contract call:\n\n * - if using `revokeRole`, it is the admin role bearer\n\n * - if using `renounceRole`, it is the role bearer (i.e. `account`)\n\n */\n\n event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);\n\n\n\n /**\n\n * @dev Returns `true` if `account` has been granted `role`.\n\n */\n\n function hasRole(bytes32 role, address account) public view returns (bool) {\n\n return _roles[role].members.contains(account);\n\n }\n\n\n\n /**\n\n * @dev Returns the number of accounts that have `role`. Can be used\n\n * together with {getRoleMember} to enumerate all bearers of a role.\n\n */\n\n function getRoleMemberCount(bytes32 role) public view returns (uint256) {\n\n return _roles[role].members.length();\n\n }\n\n\n\n /**\n\n * @dev Returns one of the accounts that have `role`. `index` must be a\n\n * value between 0 and {getRoleMemberCount}, non-inclusive.\n\n *\n\n * Role bearers are not sorted in any particular way, and their ordering may\n\n * change at any point.\n\n *\n\n * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure\n\n * you perform all queries on the same block. See the following\n\n * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post]\n\n * for more information.\n\n */\n\n function getRoleMember(bytes32 role, uint256 index) public view returns (address) {\n\n return _roles[role].members.at(index);\n\n }\n\n\n\n /**\n\n * @dev Returns the admin role that controls `role`. See {grantRole} and\n\n * {revokeRole}.\n\n *\n\n * To change a role's admin, use {_setRoleAdmin}.\n\n */\n\n function getRoleAdmin(bytes32 role) public view returns (bytes32) {\n\n return _roles[role].adminRole;\n\n }\n\n\n\n /**\n\n * @dev Grants `role` to `account`.\n\n *\n\n * If `account` had not been already granted `role`, emits a {RoleGranted}\n\n * event.\n\n *\n\n * Requirements:\n\n *\n\n * - the caller must have ``role``'s admin role.\n\n */\n\n function grantRole(bytes32 role, address account) public virtual {\n\n require(hasRole(_roles[role].adminRole, _msgSender()), \"AccessControl: sender must be an admin to grant\");\n\n\n\n _grantRole(role, account);\n\n }\n\n\n\n /**\n\n * @dev Revokes `role` from `account`.\n\n *\n\n * If `account` had been granted `role`, emits a {RoleRevoked} event.\n\n *\n\n * Requirements:\n\n *\n\n * - the caller must have ``role``'s admin role.\n\n */\n\n function revokeRole(bytes32 role, address account) public virtual {\n\n require(hasRole(_roles[role].adminRole, _msgSender()), \"AccessControl: sender must be an admin to revoke\");\n\n\n\n _revokeRole(role, account);\n\n }\n\n\n\n /**\n\n * @dev Revokes `role` from the calling account.\n\n *\n\n * Roles are often managed via {grantRole} and {revokeRole}: this function's\n\n * purpose is to provide a mechanism for accounts to lose their privileges\n\n * if they are compromised (such as when a trusted device is misplaced).\n\n *\n\n * If the calling account had been granted `role`, emits a {RoleRevoked}\n\n * event.\n\n *\n\n * Requirements:\n\n *\n\n * - the caller must be `account`.\n\n */\n\n function renounceRole(bytes32 role, address account) public virtual {\n\n require(account == _msgSender(), \"AccessControl: can only renounce roles for self\");\n\n\n\n _revokeRole(role, account);\n\n }\n\n\n\n /**\n\n * @dev Grants `role` to `account`.\n\n *\n\n * If `account` had not been already granted `role`, emits a {RoleGranted}\n\n * event. Note that unlike {grantRole}, this function doesn't perform any\n\n * checks on the calling account.\n\n *\n\n * [WARNING]\n\n * ====\n\n * This function should only be called from the constructor when setting\n\n * up the initial roles for the system.\n\n *\n\n * Using this function in any other way is effectively circumventing the admin\n\n * system imposed by {AccessControl}.\n\n * ====\n\n */\n\n function _setupRole(bytes32 role, address account) internal virtual {\n\n _grantRole(role, account);\n\n }\n\n\n\n /**\n\n * @dev Sets `adminRole` as ``role``'s admin role.\n\n */\n\n function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {\n\n _roles[role].adminRole = adminRole;\n\n }\n\n\n\n function _grantRole(bytes32 role, address account) private {\n\n if (_roles[role].members.add(account)) {\n\n emit RoleGranted(role, account, _msgSender());\n\n }\n\n }\n\n\n\n function _revokeRole(bytes32 role, address account) private {\n\n if (_roles[role].members.remove(account)) {\n\n emit RoleRevoked(role, account, _msgSender());\n\n }\n\n }\n\n\n\n uint256[49] private __gap;\n\n}\n\ncontract Permissions is AccessControlUpgradeSafe {\n\n using SafeMath for uint;\n\n using Address for address;\n\n\n\n IContractManager public contractManager;\n\n\n\n /**\n\n * @dev Throws if called by any account other than the owner.\n\n */\n\n modifier onlyOwner() {\n\n require(_isOwner(), \"Caller is not the owner\");\n\n _;\n\n }\n\n\n\n /**\n\n * @dev allow - throws if called by any account and contract other than the owner\n\n * or `contractName` contract\n\n */\n\n modifier allow(string memory contractName) {\n\n require(\n\n contractManager.getContract(contractName) == msg.sender || _isOwner(),\n\n \"Message sender is invalid\");\n\n _;\n\n }\n\n\n\n function initialize(address contractManagerAddress) public virtual initializer {\n\n AccessControlUpgradeSafe.__AccessControl_init();\n\n _setupRole(DEFAULT_ADMIN_ROLE, msg.sender);\n\n _setContractManager(contractManagerAddress);\n\n }\n\n\n\n function _isOwner() internal view returns (bool) {\n\n return hasRole(DEFAULT_ADMIN_ROLE, msg.sender);\n\n }\n\n\n\n function _setContractManager(address contractManagerAddress) private {\n\n require(contractManagerAddress != address(0), \"ContractManager address is not set\");\n\n require(contractManagerAddress.isContract(), \"Address is not contract\");\n\n contractManager = IContractManager(contractManagerAddress);\n\n }\n\n}\n\ncontract Allocator is Permissions, IERC777Recipient {\n\n\n\n uint256 constant private _SECONDS_PER_DAY = 24 * 60 * 60;\n\n uint256 constant private _MONTHS_PER_YEAR = 12;\n\n\n\n enum TimeUnit {\n\n DAY,\n\n MONTH,\n\n YEAR\n\n }\n\n\n\n enum BeneficiaryStatus {\n\n UNKNOWN,\n\n CONFIRMED,\n\n ACTIVE,\n\n TERMINATED\n\n }\n\n\n\n struct Plan {\n\n uint256 totalVestingDuration; // months\n\n uint256 vestingCliff; // months\n\n TimeUnit vestingIntervalTimeUnit;\n\n uint256 vestingInterval; // amount of days/months/years\n\n bool isDelegationAllowed;\n\n bool isTerminatable;\n\n }\n\n\n\n struct Beneficiary {\n\n BeneficiaryStatus status;\n\n uint256 planId;\n\n uint256 startMonth;\n\n uint256 fullAmount;\n\n uint256 amountAfterLockup;\n\n }\n\n\n\n event PlanCreated(\n\n uint256 id\n\n );\n\n\n\n IERC1820Registry private _erc1820;\n\n\n\n // array of Plan configs\n\n Plan[] private _plans;\n\n\n\n bytes32 public constant VESTING_MANAGER_ROLE = keccak256(\"VESTING_MANAGER_ROLE\");\n\n\n\n // beneficiary => beneficiary plan params\n\n mapping (address => Beneficiary) private _beneficiaries;\n\n\n\n // beneficiary => Escrow\n\n mapping (address => Escrow) private _beneficiaryToEscrow;\n\n\n\n modifier onlyVestingManager() {\n\n require(\n\n hasRole(VESTING_MANAGER_ROLE, _msgSender()),\n\n \"Message sender is not a vesting manager\"\n\n );\n\n _;\n\n }\n\n\n\n function tokensReceived(\n\n address operator,\n\n address from,\n\n address to,\n\n uint256 amount,\n\n bytes calldata userData,\n\n bytes calldata operatorData\n\n )\n\n external override\n\n allow(\"SkaleToken\")\n\n // solhint-disable-next-line no-empty-blocks\n\n {\n\n\n\n }\n\n\n\n /**\n\n * @dev Allows Vesting manager to activate a vesting and transfer locked\n\n * tokens from the Allocator contract to the associated Escrow address.\n\n * \n\n * Requirements:\n\n * \n\n * - Beneficiary address must be already confirmed.\n\n */\n\n function startVesting(address beneficiary) external onlyVestingManager {\n\n require(\n\n _beneficiaries[beneficiary].status == BeneficiaryStatus.CONFIRMED,\n\n \"Beneficiary has inappropriate status\"\n\n );\n\n _beneficiaries[beneficiary].status = BeneficiaryStatus.ACTIVE;\n\n require(\n\n IERC20(contractManager.getContract(\"SkaleToken\")).transfer(\n\n address(_beneficiaryToEscrow[beneficiary]),\n\n _beneficiaries[beneficiary].fullAmount\n\n ),\n\n \"Error of token sending\"\n\n );\n\n }\n\n\n\n /**\n\n * @dev Allows Vesting manager to define and add a Plan.\n\n * \n\n * Requirements:\n\n * \n\n * - Vesting cliff period must be less than or equal to the full period.\n\n * - Vesting step time unit must be in days, months, or years.\n\n * - Total vesting duration must equal vesting cliff plus entire vesting schedule.\n\n */\n\n function addPlan(\n\n uint256 vestingCliff, // months\n\n uint256 totalVestingDuration, // months\n\n TimeUnit vestingIntervalTimeUnit, // 0 - day 1 - month 2 - year\n\n uint256 vestingInterval, // months or days or years\n\n bool canDelegate, // can beneficiary delegate all un-vested tokens\n\n bool isTerminatable\n\n )\n\n external\n\n onlyVestingManager\n\n {\n\n require(totalVestingDuration > 0, \"Vesting duration can't be zero\");\n\n require(vestingInterval > 0, \"Vesting interval can't be zero\");\n\n require(totalVestingDuration >= vestingCliff, \"Cliff period exceeds total vesting duration\");\n\n // can't check if vesting interval in days is correct because it depends on startMonth\n\n // This check is in connectBeneficiaryToPlan\n\n if (vestingIntervalTimeUnit == TimeUnit.MONTH) {\n\n uint256 vestingDurationAfterCliff = totalVestingDuration - vestingCliff;\n\n require(\n\n vestingDurationAfterCliff.mod(vestingInterval) == 0,\n\n \"Vesting duration can't be divided into equal intervals\"\n\n );\n\n } else if (vestingIntervalTimeUnit == TimeUnit.YEAR) {\n\n uint256 vestingDurationAfterCliff = totalVestingDuration - vestingCliff;\n\n require(\n\n vestingDurationAfterCliff.mod(vestingInterval.mul(_MONTHS_PER_YEAR)) == 0,\n\n \"Vesting duration can't be divided into equal intervals\"\n\n );\n\n }\n\n \n\n _plans.push(Plan({\n\n totalVestingDuration: totalVestingDuration,\n\n vestingCliff: vestingCliff,\n\n vestingIntervalTimeUnit: vestingIntervalTimeUnit,\n\n vestingInterval: vestingInterval,\n\n isDelegationAllowed: canDelegate,\n\n isTerminatable: isTerminatable\n\n }));\n\n emit PlanCreated(_plans.length);\n\n }\n\n\n\n /**\n\n * @dev Allows Vesting manager to register a beneficiary to a Plan.\n\n * \n\n * Requirements:\n\n * \n\n * - Plan must already exist.\n\n * - The vesting amount must be less than or equal to the full allocation.\n\n * - The beneficiary address must not already be included in the any other Plan.\n\n */\n\n function connectBeneficiaryToPlan(\n\n address beneficiary,\n\n uint256 planId,\n\n uint256 startMonth,\n\n uint256 fullAmount,\n\n uint256 lockupAmount\n\n )\n\n external\n\n onlyVestingManager\n\n {\n\n require(_plans.length >= planId && planId > 0, \"Plan does not exist\");\n\n require(fullAmount >= lockupAmount, \"Incorrect amounts\");\n\n require(_beneficiaries[beneficiary].status == BeneficiaryStatus.UNKNOWN, \"Beneficiary is already added\");\n\n if (_plans[planId - 1].vestingIntervalTimeUnit == TimeUnit.DAY) {\n\n uint256 vestingDurationInDays = _daysBetweenMonths(\n\n startMonth.add(_plans[planId - 1].vestingCliff),\n\n startMonth.add(_plans[planId - 1].totalVestingDuration)\n\n );\n\n require(\n\n vestingDurationInDays.mod(_plans[planId - 1].vestingInterval) == 0,\n\n \"Vesting duration can't be divided into equal intervals\"\n\n );\n\n }\n\n _beneficiaries[beneficiary] = Beneficiary({\n\n status: BeneficiaryStatus.CONFIRMED,\n\n planId: planId,\n\n startMonth: startMonth,\n\n fullAmount: fullAmount,\n\n amountAfterLockup: lockupAmount\n\n });\n\n _beneficiaryToEscrow[beneficiary] = _deployEscrow(beneficiary);\n\n }\n\n\n\n /**\n\n * @dev Allows Vesting manager to terminate vesting of a Escrow. Performed when\n\n * a beneficiary is terminated.\n\n * \n\n * Requirements:\n\n * \n\n * - Vesting must be active.\n\n */\n\n function stopVesting(address beneficiary) external onlyVestingManager {\n\n require(\n\n _beneficiaries[beneficiary].status == BeneficiaryStatus.ACTIVE,\n\n \"Cannot stop vesting for a non active beneficiary\"\n\n );\n\n require(\n\n _plans[_beneficiaries[beneficiary].planId - 1].isTerminatable,\n\n \"Can't stop vesting for beneficiary with this plan\"\n\n );\n\n _beneficiaries[beneficiary].status = BeneficiaryStatus.TERMINATED;\n\n Escrow(_beneficiaryToEscrow[beneficiary]).cancelVesting(calculateVestedAmount(beneficiary));\n\n }\n\n\n\n /**\n\n * @dev Returns vesting start month of the beneficiary's Plan.\n\n */\n\n function getStartMonth(address beneficiary) external view returns (uint) {\n\n return _beneficiaries[beneficiary].startMonth;\n\n }\n\n\n\n /**\n\n * @dev Returns the final vesting date of the beneficiary's Plan.\n\n */\n\n function getFinishVestingTime(address beneficiary) external view returns (uint) {\n\n ITimeHelpers timeHelpers = ITimeHelpers(contractManager.getContract(\"TimeHelpers\"));\n\n Beneficiary memory beneficiaryPlan = _beneficiaries[beneficiary];\n\n Plan memory planParams = _plans[beneficiaryPlan.planId - 1];\n\n return timeHelpers.monthToTimestamp(beneficiaryPlan.startMonth.add(planParams.totalVestingDuration));\n\n }\n\n\n\n /**\n\n * @dev Returns the vesting cliff period in months.\n\n */\n\n function getVestingCliffInMonth(address beneficiary) external view returns (uint) {\n\n return _plans[_beneficiaries[beneficiary].planId - 1].vestingCliff;\n\n }\n\n\n\n /**\n\n * @dev Confirms whether the beneficiary is active in the Plan.\n\n */\n\n function isVestingActive(address beneficiary) external view returns (bool) {\n\n return _beneficiaries[beneficiary].status == BeneficiaryStatus.ACTIVE;\n\n }\n\n\n\n /**\n\n * @dev Confirms whether the beneficiary is registered in a Plan.\n\n */\n\n function isBeneficiaryRegistered(address beneficiary) external view returns (bool) {\n\n return _beneficiaries[beneficiary].status != BeneficiaryStatus.UNKNOWN;\n\n }\n\n\n\n /**\n\n * @dev Confirms whether the beneficiary's Plan allows all un-vested tokens to be\n\n * delegated.\n\n */\n\n function isDelegationAllowed(address beneficiary) external view returns (bool) {\n\n return _plans[_beneficiaries[beneficiary].planId - 1].isDelegationAllowed;\n\n }\n\n\n\n /**\n\n * @dev Returns the locked and unlocked (full) amount of tokens allocated to\n\n * the beneficiary address in Plan.\n\n */\n\n function getFullAmount(address beneficiary) external view returns (uint) {\n\n return _beneficiaries[beneficiary].fullAmount;\n\n }\n\n\n\n /**\n\n * @dev Returns the Escrow contract by beneficiary.\n\n */\n\n function getEscrowAddress(address beneficiary) external view returns (address) {\n\n return address(_beneficiaryToEscrow[beneficiary]);\n\n }\n\n\n\n /**\n\n * @dev Returns the timestamp when vesting cliff ends and periodic vesting\n\n * begins.\n\n */\n\n function getLockupPeriodEndTimestamp(address beneficiary) external view returns (uint) {\n\n ITimeHelpers timeHelpers = ITimeHelpers(contractManager.getContract(\"TimeHelpers\"));\n\n Beneficiary memory beneficiaryPlan = _beneficiaries[beneficiary];\n\n Plan memory planParams = _plans[beneficiaryPlan.planId - 1];\n\n return timeHelpers.monthToTimestamp(beneficiaryPlan.startMonth.add(planParams.vestingCliff));\n\n }\n\n\n\n /**\n\n * @dev Returns the time of the next vesting event.\n\n */\n\n function getTimeOfNextVest(address beneficiary) external view returns (uint) {\n\n ITimeHelpers timeHelpers = ITimeHelpers(contractManager.getContract(\"TimeHelpers\"));\n\n\n\n Beneficiary memory beneficiaryPlan = _beneficiaries[beneficiary];\n\n Plan memory planParams = _plans[beneficiaryPlan.planId - 1];\n\n\n\n uint256 firstVestingMonth = beneficiaryPlan.startMonth.add(planParams.vestingCliff);\n\n uint256 lockupEndTimestamp = timeHelpers.monthToTimestamp(firstVestingMonth);\n\n if (now < lockupEndTimestamp) {\n\n return lockupEndTimestamp;\n\n }\n\n require(\n\n now < timeHelpers.monthToTimestamp(beneficiaryPlan.startMonth.add(planParams.totalVestingDuration)),\n\n \"Vesting is over\"\n\n );\n\n require(beneficiaryPlan.status != BeneficiaryStatus.TERMINATED, \"Vesting was stopped\");\n\n \n\n uint256 currentMonth = timeHelpers.getCurrentMonth();\n\n if (planParams.vestingIntervalTimeUnit == TimeUnit.DAY) {\n\n // TODO: it may be simplified if TimeHelpers contract in skale-manager is updated\n\n uint daysPassedBeforeCurrentMonth = _daysBetweenMonths(firstVestingMonth, currentMonth);\n\n uint256 currentMonthBeginningTimestamp = timeHelpers.monthToTimestamp(currentMonth);\n\n uint256 daysPassedInCurrentMonth = now.sub(currentMonthBeginningTimestamp).div(_SECONDS_PER_DAY);\n\n uint256 daysPassedBeforeNextVest = _calculateNextVestingStep(\n\n daysPassedBeforeCurrentMonth.add(daysPassedInCurrentMonth),\n\n planParams.vestingInterval\n\n );\n\n return currentMonthBeginningTimestamp.add(\n\n daysPassedBeforeNextVest\n\n .sub(daysPassedBeforeCurrentMonth)\n\n .mul(_SECONDS_PER_DAY)\n\n );\n\n } else if (planParams.vestingIntervalTimeUnit == TimeUnit.MONTH) {\n\n return timeHelpers.monthToTimestamp(\n\n firstVestingMonth.add(\n\n _calculateNextVestingStep(currentMonth.sub(firstVestingMonth), planParams.vestingInterval)\n\n )\n\n );\n\n } else if (planParams.vestingIntervalTimeUnit == TimeUnit.YEAR) {\n\n return timeHelpers.monthToTimestamp(\n\n firstVestingMonth.add(\n\n _calculateNextVestingStep(\n\n currentMonth.sub(firstVestingMonth),\n\n planParams.vestingInterval.mul(_MONTHS_PER_YEAR)\n\n )\n\n )\n\n );\n\n } else {\n\n revert(\"Vesting interval timeunit is incorrect\");\n\n }\n\n }\n\n\n\n /**\n\n * @dev Returns the Plan parameters.\n\n * \n\n * Requirements:\n\n * \n\n * - Plan must already exist.\n\n */\n\n function getPlan(uint256 planId) external view returns (Plan memory) {\n\n require(planId > 0 && planId <= _plans.length, \"Plan Round does not exist\");\n\n return _plans[planId - 1];\n\n }\n\n\n\n /**\n\n * @dev Returns the Plan parameters for a beneficiary address.\n\n * \n\n * Requirements:\n\n * \n\n * - Beneficiary address must be registered to an Plan.\n\n */\n\n function getBeneficiaryPlanParams(address beneficiary) external view returns (Beneficiary memory) {\n\n require(_beneficiaries[beneficiary].status != BeneficiaryStatus.UNKNOWN, \"Plan beneficiary is not registered\");\n\n return _beneficiaries[beneficiary];\n\n }\n\n\n\n function initialize(address contractManagerAddress) public override initializer {\n\n Permissions.initialize(contractManagerAddress);\n\n _erc1820 = IERC1820Registry(0x1820a4B7618BdE71Dce8cdc73aAB6C95905faD24);\n\n _erc1820.setInterfaceImplementer(address(this), keccak256(\"ERC777TokensRecipient\"), address(this));\n\n }\n\n\n\n /**\n\n * @dev Calculates and returns the vested token amount.\n\n */\n\n function calculateVestedAmount(address wallet) public view returns (uint256 vestedAmount) {\n\n ITimeHelpers timeHelpers = ITimeHelpers(contractManager.getContract(\"TimeHelpers\"));\n\n Beneficiary memory beneficiaryPlan = _beneficiaries[wallet];\n\n Plan memory planParams = _plans[beneficiaryPlan.planId - 1];\n\n vestedAmount = 0;\n\n uint256 currentMonth = timeHelpers.getCurrentMonth();\n\n if (currentMonth >= beneficiaryPlan.startMonth.add(planParams.vestingCliff)) {\n\n vestedAmount = beneficiaryPlan.amountAfterLockup;\n\n if (currentMonth >= beneficiaryPlan.startMonth.add(planParams.totalVestingDuration)) {\n\n vestedAmount = beneficiaryPlan.fullAmount;\n\n } else {\n\n uint256 payment = _getSinglePaymentSize(\n\n wallet,\n\n beneficiaryPlan.fullAmount,\n\n beneficiaryPlan.amountAfterLockup\n\n );\n\n vestedAmount = vestedAmount.add(payment.mul(_getNumberOfCompletedVestingEvents(wallet)));\n\n }\n\n }\n\n }\n\n\n\n /**\n\n * @dev Returns the number of vesting events that have completed.\n\n */\n\n function _getNumberOfCompletedVestingEvents(address wallet) internal view returns (uint) {\n\n ITimeHelpers timeHelpers = ITimeHelpers(contractManager.getContract(\"TimeHelpers\"));\n\n \n\n Beneficiary memory beneficiaryPlan = _beneficiaries[wallet];\n\n Plan memory planParams = _plans[beneficiaryPlan.planId - 1];\n\n\n\n uint256 firstVestingMonth = beneficiaryPlan.startMonth.add(planParams.vestingCliff);\n\n if (now < timeHelpers.monthToTimestamp(firstVestingMonth)) {\n\n return 0;\n\n } else {\n\n uint256 currentMonth = timeHelpers.getCurrentMonth();\n\n if (planParams.vestingIntervalTimeUnit == TimeUnit.DAY) {\n\n return _daysBetweenMonths(firstVestingMonth, currentMonth)\n\n .add(\n\n now\n\n .sub(timeHelpers.monthToTimestamp(currentMonth))\n\n .div(_SECONDS_PER_DAY)\n\n )\n\n .div(planParams.vestingInterval);\n\n } else if (planParams.vestingIntervalTimeUnit == TimeUnit.MONTH) {\n\n return currentMonth\n\n .sub(firstVestingMonth)\n\n .div(planParams.vestingInterval);\n\n } else if (planParams.vestingIntervalTimeUnit == TimeUnit.YEAR) {\n\n return currentMonth\n\n .sub(firstVestingMonth)\n\n .div(_MONTHS_PER_YEAR)\n\n .div(planParams.vestingInterval);\n\n } else {\n\n revert(\"Unknown time unit\");\n\n }\n\n }\n\n }\n\n\n\n /**\n\n * @dev Returns the number of total vesting events.\n\n */\n\n function _getNumberOfAllVestingEvents(address wallet) internal view returns (uint) {\n\n Beneficiary memory beneficiaryPlan = _beneficiaries[wallet];\n\n Plan memory planParams = _plans[beneficiaryPlan.planId - 1];\n\n if (planParams.vestingIntervalTimeUnit == TimeUnit.DAY) {\n\n return _daysBetweenMonths(\n\n beneficiaryPlan.startMonth.add(planParams.vestingCliff),\n\n beneficiaryPlan.startMonth.add(planParams.totalVestingDuration)\n\n ).div(planParams.vestingInterval);\n\n } else if (planParams.vestingIntervalTimeUnit == TimeUnit.MONTH) {\n\n return planParams.totalVestingDuration\n\n .sub(planParams.vestingCliff)\n\n .div(planParams.vestingInterval);\n\n } else if (planParams.vestingIntervalTimeUnit == TimeUnit.YEAR) {\n\n return planParams.totalVestingDuration\n\n .sub(planParams.vestingCliff)\n\n .div(_MONTHS_PER_YEAR)\n\n .div(planParams.vestingInterval);\n\n } else {\n\n revert(\"Unknown time unit\");\n\n }\n\n }\n\n\n\n /**\n\n * @dev Returns the amount of tokens that are unlocked in each vesting\n\n * period.\n\n */\n\n function _getSinglePaymentSize(\n\n address wallet,\n\n uint256 fullAmount,\n\n uint256 afterLockupPeriodAmount\n\n )\n\n internal\n\n view\n\n returns(uint)\n\n {\n\n return fullAmount.sub(afterLockupPeriodAmount).div(_getNumberOfAllVestingEvents(wallet));\n\n }\n\n\n\n function _deployEscrow(address beneficiary) private returns (Escrow) {\n\n // TODO: replace with ProxyFactory when @openzeppelin/upgrades will be compatible with solidity 0.6\n\n IProxyFactory proxyFactory = IProxyFactory(contractManager.getContract(\"ProxyFactory\"));\n\n Escrow escrow = Escrow(contractManager.getContract(\"Escrow\"));\n\n // TODO: replace with ProxyAdmin when @openzeppelin/upgrades will be compatible with solidity 0.6\n\n IProxyAdmin proxyAdmin = IProxyAdmin(contractManager.getContract(\"ProxyAdmin\"));\n\n\n\n return Escrow(\n\n proxyFactory.deploy(\n\n uint256(bytes32(bytes20(beneficiary))),\n\n proxyAdmin.getProxyImplementation(address(escrow)),\n\n address(proxyAdmin),\n\n abi.encodeWithSelector(\n\n Escrow.initialize.selector,\n\n address(contractManager),\n\n beneficiary\n\n )\n\n )\n\n );\n\n }\n\n\n\n function _daysBetweenMonths(uint256 beginMonth, uint256 endMonth) private view returns (uint256) {\n\n assert(beginMonth <= endMonth);\n\n ITimeHelpers timeHelpers = ITimeHelpers(contractManager.getContract(\"TimeHelpers\"));\n\n uint256 beginTimestamp = timeHelpers.monthToTimestamp(beginMonth);\n\n uint256 endTimestamp = timeHelpers.monthToTimestamp(endMonth);\n\n uint256 secondsPassed = endTimestamp.sub(beginTimestamp);\n\n require(secondsPassed.mod(_SECONDS_PER_DAY) == 0, \"Internal error in calendar\");\n\n return secondsPassed.div(_SECONDS_PER_DAY);\n\n }\n\n\n\n /**\n\n * @dev returns time of next vest in abstract time units named \"step\"\n\n * Examples:\n\n * if current step is 5 and vesting interval is 7 function returns 7.\n\n * if current step is 17 and vesting interval is 7 function returns 21.\n\n */\n\n function _calculateNextVestingStep(uint256 currentStep, uint256 vestingInterval) private pure returns (uint256) {\n\n return currentStep\n\n .add(vestingInterval)\n\n .sub(\n\n currentStep.mod(vestingInterval)\n\n );\n\n }\n\n}\n\ncontract Escrow is IERC777Recipient, IERC777Sender, Permissions {\n\n\n\n address private _beneficiary;\n\n\n\n uint256 private _availableAmountAfterTermination;\n\n\n\n IERC1820Registry private _erc1820;\n\n\n\n address public constant ADMIN = address(0x4165CCb2ab09AC00Bb40C66FB296baCa183F899f);\n\n\n\n modifier onlyBeneficiary() {\n\n require(_msgSender() == _beneficiary || _msgSender() == ADMIN, \"Message sender is not a plan beneficiary\");\n\n _;\n\n }\n\n\n\n modifier onlyVestingManager() {\n\n Allocator allocator = Allocator(contractManager.getContract(\"Allocator\"));\n\n require(\n\n allocator.hasRole(allocator.VESTING_MANAGER_ROLE(), _msgSender()),\n\n \"Message sender is not a vesting manager\"\n\n );\n\n _;\n\n }\n\n\n\n modifier onlyActiveBeneficiaryOrVestingManager() {\n\n Allocator allocator = Allocator(contractManager.getContract(\"Allocator\"));\n\n if (allocator.isVestingActive(_beneficiary)) {\n\n require(_msgSender() == _beneficiary || _msgSender() == ADMIN, \"Message sender is not beneficiary\");\n\n } else {\n\n require(\n\n allocator.hasRole(allocator.VESTING_MANAGER_ROLE(), _msgSender()),\n\n \"Message sender is not authorized\"\n\n );\n\n }\n\n _;\n\n } \n\n\n\n function initialize(address contractManagerAddress, address beneficiary) external initializer {\n\n require(beneficiary != address(0), \"Beneficiary address is not set\");\n\n Permissions.initialize(contractManagerAddress);\n\n _beneficiary = beneficiary;\n\n _erc1820 = IERC1820Registry(0x1820a4B7618BdE71Dce8cdc73aAB6C95905faD24);\n\n _erc1820.setInterfaceImplementer(address(this), keccak256(\"ERC777TokensRecipient\"), address(this));\n\n _erc1820.setInterfaceImplementer(address(this), keccak256(\"ERC777TokensSender\"), address(this));\n\n } \n\n\n\n function tokensReceived(\n\n address operator,\n\n address from,\n\n address to,\n\n uint256 amount,\n\n bytes calldata userData,\n\n bytes calldata operatorData\n\n )\n\n external override\n\n allow(\"SkaleToken\")\n\n // solhint-disable-next-line no-empty-blocks\n\n {\n\n\n\n }\n\n\n\n function tokensToSend(\n\n address,\n\n address,\n\n address to,\n\n uint256,\n\n bytes calldata,\n\n bytes calldata\n\n )\n\n external override\n\n allow(\"SkaleToken\")\n\n // solhint-disable-next-line no-empty-blocks\n\n {\n\n\n\n }\n\n\n\n /**\n\n * @dev Allows Beneficiary to retrieve vested tokens from the Escrow contract.\n\n * \n\n * IMPORTANT: Slashed tokens are non-transferable.\n\n */\n\n function retrieve() external onlyBeneficiary {\n\n Allocator allocator = Allocator(contractManager.getContract(\"Allocator\"));\n\n ITokenState tokenState = ITokenState(contractManager.getContract(\"TokenState\"));\n\n uint256 vestedAmount = 0;\n\n if (allocator.isVestingActive(_beneficiary)) {\n\n vestedAmount = allocator.calculateVestedAmount(_beneficiary);\n\n } else {\n\n vestedAmount = _availableAmountAfterTermination;\n\n }\n\n uint256 escrowBalance = IERC20(contractManager.getContract(\"SkaleToken\")).balanceOf(address(this));\n\n uint256 fullAmount = allocator.getFullAmount(_beneficiary);\n\n uint256 forbiddenToSend = tokenState.getAndUpdateForbiddenForDelegationAmount(address(this));\n\n if (vestedAmount > fullAmount.sub(escrowBalance)) {\n\n if (vestedAmount.sub(fullAmount.sub(escrowBalance)) > forbiddenToSend)\n\n require(\n\n IERC20(contractManager.getContract(\"SkaleToken\")).transfer(\n\n _beneficiary,\n\n vestedAmount\n\n .sub(\n\n fullAmount\n\n .sub(escrowBalance)\n\n )\n\n .sub(forbiddenToSend)\n\n ),\n\n \"Error of token send\"\n\n );\n\n }\n\n }\n\n\n\n /**\n\n * @dev Allows Vesting Manager to retrieve remaining transferrable escrow balance\n\n * after beneficiary's termination. \n\n * \n\n * IMPORTANT: Slashed tokens are non-transferable.\n\n * \n\n * Requirements:\n\n * \n\n * - Allocator must be active.\n\n */\n\n function retrieveAfterTermination(address destination) external onlyVestingManager {\n\n Allocator allocator = Allocator(contractManager.getContract(\"Allocator\"));\n\n ITokenState tokenState = ITokenState(contractManager.getContract(\"TokenState\"));\n\n\n\n require(destination != address(0), \"Destination address is not set\");\n\n require(!allocator.isVestingActive(_beneficiary), \"Vesting is active\");\n\n uint256 escrowBalance = IERC20(contractManager.getContract(\"SkaleToken\")).balanceOf(address(this));\n\n uint256 forbiddenToSend = tokenState.getAndUpdateLockedAmount(address(this));\n\n if (escrowBalance > forbiddenToSend) {\n\n require(\n\n IERC20(contractManager.getContract(\"SkaleToken\")).transfer(\n\n destination,\n\n escrowBalance.sub(forbiddenToSend)\n\n ),\n\n \"Error of token send\"\n\n );\n\n }\n\n }\n\n\n\n /**\n\n * @dev Allows Beneficiary to propose a delegation to a validator.\n\n * \n\n * Requirements:\n\n * \n\n * - Beneficiary must be active.\n\n * - Beneficiary must have sufficient delegatable tokens.\n\n * - If trusted list is enabled, validator must be a member of the trusted\n\n * list.\n\n */\n\n function delegate(\n\n uint256 validatorId,\n\n uint256 amount,\n\n uint256 delegationPeriod,\n\n string calldata info\n\n )\n\n external\n\n onlyBeneficiary\n\n {\n\n Allocator allocator = Allocator(contractManager.getContract(\"Allocator\"));\n\n require(allocator.isDelegationAllowed(_beneficiary), \"Delegation is not allowed\");\n\n require(allocator.isVestingActive(_beneficiary), \"Beneficiary is not Active\");\n\n \n\n IDelegationController delegationController = IDelegationController(\n\n contractManager.getContract(\"DelegationController\")\n\n );\n\n delegationController.delegate(validatorId, amount, delegationPeriod, info);\n\n }\n\n\n\n /**\n\n * @dev Allows Beneficiary and Vesting manager to request undelegation. Only \n\n * Vesting manager can request undelegation after beneficiary is deactivated \n\n * (after beneficiary termination).\n\n * \n\n * Requirements:\n\n * \n\n * - Beneficiary and Vesting manager must be `msg.sender`.\n\n */\n\n function requestUndelegation(uint256 delegationId) external onlyActiveBeneficiaryOrVestingManager {\n\n IDelegationController delegationController = IDelegationController(\n\n contractManager.getContract(\"DelegationController\")\n\n );\n\n delegationController.requestUndelegation(delegationId);\n\n }\n\n\n\n /**\n\n * @dev Allows Beneficiary and Vesting manager to cancel a delegation proposal. Only \n\n * Vesting manager can request undelegation after beneficiary is deactivated \n\n * (after beneficiary termination).\n\n * \n\n * Requirements:\n\n * \n\n * - Beneficiary and Vesting manager must be `msg.sender`.\n\n */\n\n function cancelPendingDelegation(uint delegationId) external onlyActiveBeneficiaryOrVestingManager {\n\n IDelegationController delegationController = IDelegationController(\n\n contractManager.getContract(\"DelegationController\")\n\n );\n\n delegationController.cancelPendingDelegation(delegationId);\n\n }\n\n\n\n /**\n\n * @dev Allows Beneficiary and Vesting manager to withdraw earned bounty. Only\n\n * Vesting manager can withdraw bounty to Allocator contract after beneficiary\n\n * is deactivated.\n\n * \n\n * IMPORTANT: Withdraws are only possible after 90 day initial network lock.\n\n * \n\n * Requirements:\n\n * \n\n * - Beneficiary or Vesting manager must be `msg.sender`.\n\n * - Beneficiary must be active when Beneficiary is `msg.sender`.\n\n */\n\n function withdrawBounty(uint256 validatorId, address to) external onlyActiveBeneficiaryOrVestingManager { \n\n IDistributor distributor = IDistributor(contractManager.getContract(\"Distributor\"));\n\n distributor.withdrawBounty(validatorId, to);\n\n }\n\n\n\n /**\n\n * @dev Allows Allocator contract to cancel vesting of a Beneficiary. Cancel\n\n * vesting is performed upon termination.\n\n */\n\n function cancelVesting(uint256 vestedAmount) external allow(\"Allocator\") {\n\n _availableAmountAfterTermination = vestedAmount;\n\n }\n\n}\n"},"bytecode":{"kind":"string","value":"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0":{"kind":"number","value":686,"string":"686"},"address":{"kind":"string","value":"0xf2ddae89449b7d26309a5d54614b1fc99c608af5"},"source_code":{"kind":"string","value":"pragma solidity 0.5.17;\n\ninterface IERC20 {\n\n /**\n\n * @dev Returns the amount of tokens in existence.\n\n */\n\n function totalSupply() external view returns (uint256);\n\n\n\n /**\n\n * @dev Returns the amount of tokens owned by `account`.\n\n */\n\n function balanceOf(address who) external view returns (uint256);\n\n\n\n /**\n\n * @dev Returns the remaining number of tokens that `spender` will be\n\n * allowed to spend on behalf of `owner` through `transferFrom`. This is\n\n * zero by default.\n\n *\n\n * This value changes when `approve` or `transferFrom` are called.\n\n */\n\n function allowance(address owner, address spender) external view returns (uint256);\n\n\n\n /**\n\n * @dev Moves `amount` tokens from the caller's account to `recipient`.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * Emits a `Transfer` event.\n\n */\n\n function transfer(address to, uint256 value) external returns (bool);\n\n\n\n /**\n\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * > Beware that changing an allowance with this method brings the risk\n\n * that someone may use both the old and the new allowance by unfortunate\n\n * transaction ordering. One possible solution to mitigate this race\n\n * condition is to first reduce the spender's allowance to 0 and set the\n\n * desired value afterwards:\n\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n\n *\n\n * Emits an `Approval` event.\n\n */\n\n function approve(address spender, uint256 value) external returns (bool);\n\n\n\n /**\n\n * @dev Moves `amount` tokens from `sender` to `recipient` using the\n\n * allowance mechanism. `amount` is then deducted from the caller's\n\n * allowance.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * Emits a `Transfer` event.\n\n */\n\n function transferFrom(address from, address to, uint256 value) external returns (bool);\n\n\n\n /**\n\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n\n * another (`to`).\n\n *\n\n * Note that `value` may be zero.\n\n */\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n\n\n /**\n\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n\n * a call to `approve`. `value` is the new allowance.\n\n */\n\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n}\n\ncontract Ownable {\n\n address private _owner;\n\n\n\n event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\n\n\n\n /**\n\n * @dev The Ownable constructor sets the original `owner` of the contract to the sender\n\n * account.\n\n */\n\n constructor() public {\n\n _owner = msg.sender;\n\n }\n\n\n\n /**\n\n * @return the address of the owner.\n\n */\n\n function owner() public view returns(address) {\n\n return _owner;\n\n }\n\n\n\n /**\n\n * @dev Throws if called by any account other than the owner.\n\n */\n\n modifier onlyOwner() {\n\n require(_isOwner());\n\n _;\n\n }\n\n\n\n /**\n\n * @return true if `msg.sender` is the owner of the contract.\n\n */\n\n function _isOwner() internal view returns(bool) {\n\n return msg.sender == _owner;\n\n }\n\n\n\n /**\n\n * @dev Allows the current owner to transfer control of the contract to a newOwner.\n\n * @param newOwner The address to transfer ownership to.\n\n */\n\n function transferOwnership(address newOwner) public onlyOwner {\n\n _transferOwnership(newOwner);\n\n }\n\n\n\n /**\n\n * @dev Transfers control of the contract to a newOwner.\n\n * @param newOwner The address to transfer ownership to.\n\n */\n\n function _transferOwnership(address newOwner) internal {\n\n require(newOwner != address(0));\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n\n }\n\n}\n\nlibrary SafeMath {\n\n\n\n /**\n\n * @dev Multiplies two numbers, reverts on overflow.\n\n */\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n\n // benefit is lost if 'b' is also tested.\n\n // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522\n\n if (a == 0) {\n\n return 0;\n\n }\n\n\n\n uint256 c = a * b;\n\n require(c / a == b);\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Integer division of two numbers truncating the quotient, reverts on division by zero.\n\n */\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n\n require(b > 0); // Solidity only automatically asserts when dividing by 0\n\n uint256 c = a / b;\n\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Subtracts two numbers, reverts on overflow (i.e. if subtrahend is greater than minuend).\n\n */\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n\n require(b <= a);\n\n uint256 c = a - b;\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Adds two numbers, reverts on overflow.\n\n */\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n\n uint256 c = a + b;\n\n require(c >= a);\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Divides two numbers and returns the remainder (unsigned integer modulo),\n\n * reverts when dividing by zero.\n\n */\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n\n require(b != 0);\n\n return a % b;\n\n }\n\n}\n\ncontract Stoppable is Ownable{\n\n bool public stopped = false;\n\n \n\n modifier enabled {\n\n require (!stopped);\n\n _;\n\n }\n\n \n\n function stop() external onlyOwner { \n\n stopped = true; \n\n }\n\n \n\n function start() external onlyOwner {\n\n stopped = false;\n\n } \n\n}\n\ncontract ERC20 is IERC20 {\n\n using SafeMath for uint256;\n\n\n\n mapping (address => uint256) private _balances;\n\n\n\n mapping (address => mapping (address => uint256)) private _allowed;\n\n\n\n uint256 private _totalSupply;\n\n\n\n /**\n\n * @dev Total number of tokens in existence\n\n */\n\n function totalSupply() public view returns (uint256) {\n\n return _totalSupply;\n\n }\n\n\n\n /**\n\n * @dev Gets the balance of the specified address.\n\n * @param owner The address to query the balance of.\n\n * @return An uint256 representing the amount owned by the passed address.\n\n */\n\n function balanceOf(address owner) public view returns (uint256) {\n\n return _balances[owner];\n\n }\n\n\n\n /**\n\n * @dev Function to check the amount of tokens that an owner allowed to a spender.\n\n * @param owner address The address which owns the funds.\n\n * @param spender address The address which will spend the funds.\n\n * @return A uint256 specifying the amount of tokens still available for the spender.\n\n */\n\n function allowance(address owner, address spender) public view returns (uint256) {\n\n return _allowed[owner][spender];\n\n }\n\n\n\n /**\n\n * @dev Transfer token for a specified address\n\n * @param to The address to transfer to.\n\n * @param value The amount to be transferred.\n\n */\n\n function transfer(address to, uint256 value) public returns (bool) {\n\n require(value <= _balances[msg.sender], \"ERC20: Overdrawn balance\");\n\n require(to != address(0));\n\n\n\n _balances[msg.sender] = _balances[msg.sender].sub(value);\n\n _balances[to] = _balances[to].add(value);\n\n emit Transfer(msg.sender, to, value);\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.\n\n * Beware that changing an allowance with this method brings the risk that someone may use both the old\n\n * and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this\n\n * race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:\n\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n\n * @param spender The address which will spend the funds.\n\n * @param value The amount of tokens to be spent.\n\n */\n\n function approve(address spender, uint256 value) public returns (bool) {\n\n require(spender != address(0));\n\n\n\n _allowed[msg.sender][spender] = value;\n\n emit Approval(msg.sender, spender, value);\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev Transfer tokens from one address to another\n\n * @param from address The address which you want to send tokens from\n\n * @param to address The address which you want to transfer to\n\n * @param value uint256 the amount of tokens to be transferred\n\n */\n\n function transferFrom(address from, address to, uint256 value) public returns (bool) {\n\n require(value <= _balances[from], \"ERC20: Overdrawn balance\");\n\n require(value <= _allowed[from][msg.sender]);\n\n require(to != address(0));\n\n\n\n _balances[from] = _balances[from].sub(value);\n\n _balances[to] = _balances[to].add(value);\n\n _allowed[from][msg.sender] = _allowed[from][msg.sender].sub(value);\n\n emit Transfer(from, to, value);\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev Increase the amount of tokens that an owner allowed to a spender.\n\n * approve should be called when allowed_[_spender] == 0. To increment\n\n * allowed value is better to use this function to avoid 2 calls (and wait until\n\n * the first transaction is mined)\n\n * From MonolithDAO Token.sol\n\n * @param spender The address which will spend the funds.\n\n * @param addedValue The amount of tokens to increase the allowance by.\n\n */\n\n function increaseAllowance(address spender, uint256 addedValue) public returns (bool) {\n\n require(spender != address(0));\n\n\n\n _allowed[msg.sender][spender] = (_allowed[msg.sender][spender].add(addedValue));\n\n emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev Decrease the amount of tokens that an owner allowed to a spender.\n\n * approve should be called when allowed_[_spender] == 0. To decrement\n\n * allowed value is better to use this function to avoid 2 calls (and wait until\n\n * the first transaction is mined)\n\n * From MonolithDAO Token.sol\n\n * @param spender The address which will spend the funds.\n\n * @param subtractedValue The amount of tokens to decrease the allowance by.\n\n */\n\n function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) {\n\n require(spender != address(0));\n\n\n\n _allowed[msg.sender][spender] = (_allowed[msg.sender][spender].sub(subtractedValue));\n\n emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev Internal function that mints an amount of the token and assigns it to\n\n * an account. This encapsulates the modification of balances such that the\n\n * proper events are emitted.\n\n * @param account The account that will receive the created tokens.\n\n * @param amount The amount that will be created.\n\n */\n\n function _mint(address account, uint256 amount) internal {\n\n require(account != address(0));\n\n _totalSupply = _totalSupply.add(amount);\n\n _balances[account] = _balances[account].add(amount);\n\n emit Transfer(address(0), account, amount);\n\n }\n\n\n\n /**\n\n * @dev Internal function that burns an amount of the token of a given\n\n * account.\n\n * @param account The account whose tokens will be burnt.\n\n * @param amount The amount that will be burnt.\n\n */\n\n function _burn(address account, uint256 amount) internal {\n\n require(account != address(0));\n\n require(amount <= _balances[account], \"ERC20: Overdrawn balance\");\n\n\n\n _totalSupply = _totalSupply.sub(amount);\n\n _balances[account] = _balances[account].sub(amount);\n\n emit Transfer(account, address(0), amount);\n\n }\n\n\n\n /**\n\n * @dev Internal function that burns an amount of the token of a given\n\n * account, deducting from the sender's allowance for said account. Uses the\n\n * internal burn function.\n\n * @param account The account whose tokens will be burnt.\n\n * @param amount The amount that will be burnt.\n\n */\n\n function _burnFrom(address account, uint256 amount) internal {\n\n require(amount <= _allowed[account][msg.sender], \"ERC20: Overdrawn balance\");\n\n\n\n // Should https://github.com/OpenZeppelin/zeppelin-solidity/issues/707 be accepted,\n\n // this function needs to emit an event with the updated approval.\n\n _allowed[account][msg.sender] = _allowed[account][msg.sender].sub(amount);\n\n _burn(account, amount);\n\n }\n\n}\n\ncontract ERC20Burnable is ERC20 {\n\n\n\n /**\n\n * @dev Burns a specific amount of tokens.\n\n * @param value The amount of token to be burned.\n\n */\n\n function burn(uint256 value) public {\n\n _burn(msg.sender, value);\n\n }\n\n\n\n /**\n\n * @dev Burns a specific amount of tokens from the target address and decrements allowance\n\n * @param from address The address which you want to send tokens from\n\n * @param value uint256 The amount of token to be burned\n\n */\n\n function burnFrom(address from, uint256 value) public {\n\n _burnFrom(from, value);\n\n }\n\n\n\n /**\n\n * @dev Overrides ERC20._burn in order for burn and burnFrom to emit\n\n * an additional Burn event.\n\n */\n\n function _burn(address who, uint256 value) internal {\n\n super._burn(who, value);\n\n }\n\n}\n\ncontract ERC20Detailed is IERC20 {\n\n string private _name;\n\n string private _symbol;\n\n uint8 private _decimals;\n\n\n\n constructor(string memory name, string memory symbol, uint8 decimals) public {\n\n _name = name;\n\n _symbol = symbol;\n\n _decimals = decimals;\n\n }\n\n\n\n /**\n\n * @return the name of the token.\n\n */\n\n function name() public view returns(string memory) {\n\n return _name;\n\n }\n\n\n\n /**\n\n * @return the symbol of the token.\n\n */\n\n function symbol() public view returns(string memory) {\n\n return _symbol;\n\n }\n\n\n\n /**\n\n * @return the number of decimals of the token.\n\n */\n\n function decimals() public view returns(uint8) {\n\n return _decimals;\n\n }\n\n}\n\ncontract GENToken is ERC20Detailed, /*ERC20,*/ ERC20Burnable, Stoppable {\n\n\n\n constructor (\n\n string memory name,\n\n string memory symbol,\n\n uint256 totalSupply,\n\n uint8 decimals\n\n ) ERC20Detailed(name, symbol, decimals)\n\n public {\n\n _mint(owner(), totalSupply * 10**uint(decimals));\n\n }\n\n\n\n // Don't accept ETH\n\n function () payable external {\n\n revert();\n\n }\n\n\n\n function mint(address account, uint256 amount) public onlyOwner returns (bool) {\n\n _mint(account, amount);\n\n return true;\n\n }\n\n\n\n //------------------------\n\n // Lock account transfer\n\n\n\n mapping (address => uint256) private _lockTimes;\n\n mapping (address => uint256) private _lockAmounts;\n\n\n\n event LockChanged(address indexed account, uint256 releaseTime, uint256 amount);\n\n\n\n function setLock(address account, uint256 releaseTime, uint256 amount) onlyOwner public {\n\n _lockTimes[account] = releaseTime;\n\n _lockAmounts[account] = amount;\n\n emit LockChanged( account, releaseTime, amount );\n\n }\n\n\n\n function getLock(address account) public view returns (uint256 lockTime, uint256 lockAmount) {\n\n return (_lockTimes[account], _lockAmounts[account]);\n\n }\n\n\n\n function _isLocked(address account, uint256 amount) internal view returns (bool) {\n\n return _lockTimes[account] != 0 &&\n\n _lockAmounts[account] != 0 &&\n\n _lockTimes[account] > block.timestamp &&\n\n (\n\n balanceOf(account) <= _lockAmounts[account] ||\n\n balanceOf(account).sub(_lockAmounts[account]) < amount\n\n );\n\n }\n\n\n\n function transfer(address recipient, uint256 amount) enabled public returns (bool) {\n\n require( !_isLocked( msg.sender, amount ) , \"ERC20: Locked balance\");\n\n return super.transfer(recipient, amount);\n\n }\n\n\n\n function transferFrom(address sender, address recipient, uint256 amount) enabled public returns (bool) {\n\n require( !_isLocked( sender, amount ) , \"ERC20: Locked balance\");\n\n return super.transferFrom(sender, recipient, amount);\n\n 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0":{"kind":"number","value":687,"string":"687"},"address":{"kind":"string","value":"0xf4128B00AFdA933428056d0F0D1d7652aF7e2B35"},"source_code":{"kind":"string","value":"pragma solidity 0.6.12;\n\nabstract contract Context {\n\n function _msgSender() internal view virtual returns (address payable) {\n\n return msg.sender;\n\n }\n\n\n\n function _msgData() internal view virtual returns (bytes memory) {\n\n this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691\n\n return msg.data;\n\n }\n\n}\n\ncontract Ownable is Context {\n\n address private _owner;\n\n\n\n event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\n\n\n\n /**\n\n * @dev Initializes the contract setting the deployer as the initial owner.\n\n */\n\n constructor () internal {\n\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n\n }\n\n\n\n /**\n\n * @dev Returns the address of the current owner.\n\n */\n\n function owner() public view returns (address) {\n\n return _owner;\n\n }\n\n\n\n /**\n\n * @dev Throws if called by any account other than the owner.\n\n */\n\n modifier onlyOwner() {\n\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n\n }\n\n\n\n /**\n\n * @dev Leaves the contract without owner. It will not be possible to call\n\n * `onlyOwner` functions anymore. Can only be called by the current owner.\n\n *\n\n * NOTE: Renouncing ownership will leave the contract without an owner,\n\n * thereby removing any functionality that is only available to the owner.\n\n */\n\n function renounceOwnership() public virtual onlyOwner {\n\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n\n }\n\n\n\n /**\n\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\n\n * Can only be called by the current owner.\n\n */\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n\n require(newOwner != address(0), \"Ownable: new owner is the zero address\");\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n\n }\n\n}\n\nlibrary SafeMath {\n\n /**\n\n * @dev Returns the addition of two unsigned integers, reverting on\n\n * overflow.\n\n *\n\n * Counterpart to Solidity's `+` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Addition cannot overflow.\n\n */\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the subtraction of two unsigned integers, reverting on\n\n * overflow (when the result is negative).\n\n *\n\n * Counterpart to Solidity's `-` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Subtraction cannot overflow.\n\n */\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return sub(a, b, \"SafeMath: subtraction overflow\");\n\n }\n\n\n\n /**\n\n * @dev Returns the subtraction of two unsigned integers, reverting with custom message on\n\n * overflow (when the result is negative).\n\n *\n\n * Counterpart to Solidity's `-` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Subtraction cannot overflow.\n\n */\n\n function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the multiplication of two unsigned integers, reverting on\n\n * overflow.\n\n *\n\n * Counterpart to Solidity's `*` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Multiplication cannot overflow.\n\n */\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n\n // benefit is lost if 'b' is also tested.\n\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n\n if (a == 0) {\n\n return 0;\n\n }\n\n\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the integer division of two unsigned integers. Reverts on\n\n * division by zero. The result is rounded towards zero.\n\n *\n\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n\n * uses an invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return div(a, b, \"SafeMath: division by zero\");\n\n }\n\n\n\n /**\n\n * @dev Returns the integer division of two unsigned integers. Reverts with custom message on\n\n * division by zero. The result is rounded towards zero.\n\n *\n\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n\n * uses an invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n\n * Reverts when dividing by zero.\n\n *\n\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n\n * invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return mod(a, b, \"SafeMath: modulo by zero\");\n\n }\n\n\n\n /**\n\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n\n * Reverts with custom message when dividing by zero.\n\n *\n\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n\n * invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n require(b != 0, errorMessage);\n\n return a % b;\n\n }\n\n}\n\ninterface IERC20 {\n\n /**\n\n * @dev Returns the amount of tokens in existence.\n\n */\n\n function totalSupply() external view returns (uint256);\n\n\n\n /**\n\n * @dev Returns the amount of tokens owned by `account`.\n\n */\n\n function balanceOf(address account) external view returns (uint256);\n\n\n\n /**\n\n * @dev Moves `amount` tokens from the caller's account to `recipient`.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * Emits a {Transfer} event.\n\n */\n\n function transfer(address recipient, uint256 amount) external returns (bool);\n\n\n\n /**\n\n * @dev Returns the remaining number of tokens that `spender` will be\n\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n\n * zero by default.\n\n *\n\n * This value changes when {approve} or {transferFrom} are called.\n\n */\n\n function allowance(address owner, address spender) external view returns (uint256);\n\n\n\n /**\n\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n\n * that someone may use both the old and the new allowance by unfortunate\n\n * transaction ordering. One possible solution to mitigate this race\n\n * condition is to first reduce the spender's allowance to 0 and set the\n\n * desired value afterwards:\n\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n\n *\n\n * Emits an {Approval} event.\n\n */\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n\n\n /**\n\n * @dev Moves `amount` tokens from `sender` to `recipient` using the\n\n * allowance mechanism. `amount` is then deducted from the caller's\n\n * allowance.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * Emits a {Transfer} event.\n\n */\n\n function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);\n\n\n\n /**\n\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n\n * another (`to`).\n\n *\n\n * Note that `value` may be zero.\n\n */\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n\n\n /**\n\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n\n * a call to {approve}. `value` is the new allowance.\n\n */\n\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n}\n\nlibrary SafeERC20 {\n\n using SafeMath for uint256;\n\n using Address for address;\n\n\n\n function safeTransfer(IERC20 token, address to, uint256 value) internal {\n\n _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));\n\n }\n\n\n\n function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {\n\n _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));\n\n }\n\n\n\n /**\n\n * @dev Deprecated. This function has issues similar to the ones found in\n\n * {IERC20-approve}, and its usage is discouraged.\n\n *\n\n * Whenever possible, use {safeIncreaseAllowance} and\n\n * {safeDecreaseAllowance} instead.\n\n */\n\n function safeApprove(IERC20 token, address spender, uint256 value) internal {\n\n // safeApprove should only be called when setting an initial allowance,\n\n // or when resetting it to zero. To increase and decrease it, use\n\n // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'\n\n // solhint-disable-next-line max-line-length\n\n require((value == 0) || (token.allowance(address(this), spender) == 0),\n\n \"SafeERC20: approve from non-zero to non-zero allowance\"\n\n );\n\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));\n\n }\n\n\n\n function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {\n\n uint256 newAllowance = token.allowance(address(this), spender).add(value);\n\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\n\n }\n\n\n\n function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {\n\n uint256 newAllowance = token.allowance(address(this), spender).sub(value, \"SafeERC20: decreased allowance below zero\");\n\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\n\n }\n\n\n\n /**\n\n * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement\n\n * on the return value: the return value is optional (but if data is returned, it must not be false).\n\n * @param token The token targeted by the call.\n\n * @param data The call data (encoded using abi.encode or one of its variants).\n\n */\n\n function _callOptionalReturn(IERC20 token, bytes memory data) private {\n\n // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since\n\n // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that\n\n // the target address contains contract code and also asserts for success in the low-level call.\n\n\n\n bytes memory returndata = address(token).functionCall(data, \"SafeERC20: low-level call failed\");\n\n if (returndata.length > 0) { // Return data is optional\n\n // solhint-disable-next-line max-line-length\n\n require(abi.decode(returndata, (bool)), \"SafeERC20: ERC20 operation did not succeed\");\n\n }\n\n }\n\n}\n\nlibrary Address {\n\n /**\n\n * @dev Returns true if `account` is a contract.\n\n *\n\n * [IMPORTANT]\n\n * ====\n\n * It is unsafe to assume that an address for which this function returns\n\n * false is an externally-owned account (EOA) and not a contract.\n\n *\n\n * Among others, `isContract` will return false for the following\n\n * types of addresses:\n\n *\n\n * - an externally-owned account\n\n * - a contract in construction\n\n * - an address where a contract will be created\n\n * - an address where a contract lived, but was destroyed\n\n * ====\n\n */\n\n function isContract(address account) internal view returns (bool) {\n\n // This method relies in extcodesize, which returns 0 for contracts in\n\n // construction, since the code is only stored at the end of the\n\n // constructor execution.\n\n\n\n uint256 size;\n\n // solhint-disable-next-line no-inline-assembly\n\n assembly { size := extcodesize(account) }\n\n return size > 0;\n\n }\n\n\n\n /**\n\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n\n * `recipient`, forwarding all available gas and reverting on errors.\n\n *\n\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n\n * imposed by `transfer`, making them unable to receive funds via\n\n * `transfer`. {sendValue} removes this limitation.\n\n *\n\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n\n *\n\n * IMPORTANT: because control is transferred to `recipient`, care must be\n\n * taken to not create reentrancy vulnerabilities. Consider using\n\n * {ReentrancyGuard} or the\n\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n\n */\n\n function sendValue(address payable recipient, uint256 amount) internal {\n\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n\n\n // solhint-disable-next-line avoid-low-level-calls, avoid-call-value\n\n (bool success, ) = recipient.call{ value: amount }(\"\");\n\n require(success, \"Address: unable to send value, recipient may have reverted\");\n\n }\n\n\n\n /**\n\n * @dev Performs a Solidity function call using a low level `call`. A\n\n * plain`call` is an unsafe replacement for a function call: use this\n\n * function instead.\n\n *\n\n * If `target` reverts with a revert reason, it is bubbled up by this\n\n * function (like regular Solidity function calls).\n\n *\n\n * Returns the raw returned data. To convert to the expected return value,\n\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n\n *\n\n * Requirements:\n\n *\n\n * - `target` must be a contract.\n\n * - calling `target` with `data` must not revert.\n\n *\n\n * _Available since v3.1._\n\n */\n\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n\n return functionCall(target, data, \"Address: low-level call failed\");\n\n }\n\n\n\n /**\n\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n\n * `errorMessage` as a fallback revert reason when `target` reverts.\n\n *\n\n * _Available since v3.1._\n\n */\n\n function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {\n\n return _functionCallWithValue(target, data, 0, errorMessage);\n\n }\n\n\n\n /**\n\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n\n * but also transferring `value` wei to `target`.\n\n *\n\n * Requirements:\n\n *\n\n * - the calling contract must have an ETH balance of at least `value`.\n\n * - the called Solidity function must be `payable`.\n\n *\n\n * _Available since v3.1._\n\n */\n\n function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n\n }\n\n\n\n /**\n\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n\n *\n\n * _Available since v3.1._\n\n */\n\n function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {\n\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n\n return _functionCallWithValue(target, data, value, errorMessage);\n\n }\n\n\n\n function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {\n\n require(isContract(target), \"Address: call to non-contract\");\n\n\n\n // solhint-disable-next-line avoid-low-level-calls\n\n (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);\n\n if (success) {\n\n return returndata;\n\n } else {\n\n // Look for revert reason and bubble it up if present\n\n if (returndata.length > 0) {\n\n // The easiest way to bubble the revert reason is using memory via assembly\n\n\n\n // solhint-disable-next-line no-inline-assembly\n\n assembly {\n\n let returndata_size := mload(returndata)\n\n revert(add(32, returndata), returndata_size)\n\n }\n\n } else {\n\n revert(errorMessage);\n\n }\n\n }\n\n }\n\n}\n\ninterface IHegicStaking is IERC20 {\n\n function lockupPeriod() external view returns (uint256);\n\n function MAX_SUPPLY() external view returns (uint256);\n\n function lastBoughtTimestamp(address) external view returns (uint256);\n\n\n\n function claimProfit() external returns (uint profit);\n\n function buy(uint amount) external;\n\n function sell(uint amount) external;\n\n function profitOf(address account) external view returns (uint profit);\n\n}\n\ninterface IHegicStakingETH is IHegicStaking {\n\n function sendProfit() external payable;\n\n}\n\ninterface IHegicStakingERC20 is IHegicStaking {\n\n function sendProfit(uint amount) external;\n\n}\n\ncontract ERC20 is Context, IERC20 {\n\n using SafeMath for uint256;\n\n using Address for address;\n\n\n\n mapping (address => uint256) private _balances;\n\n\n\n mapping (address => mapping (address => uint256)) private _allowances;\n\n\n\n uint256 private _totalSupply;\n\n\n\n string private _name;\n\n string private _symbol;\n\n uint8 private _decimals;\n\n\n\n /**\n\n * @dev Sets the values for {name} and {symbol}, initializes {decimals} with\n\n * a default value of 18.\n\n *\n\n * To select a different value for {decimals}, use {_setupDecimals}.\n\n *\n\n * All three of these values are immutable: they can only be set once during\n\n * construction.\n\n */\n\n constructor (string memory name, string memory symbol) public {\n\n _name = name;\n\n _symbol = symbol;\n\n _decimals = 18;\n\n }\n\n\n\n /**\n\n * @dev Returns the name of the token.\n\n */\n\n function name() public view returns (string memory) {\n\n return _name;\n\n }\n\n\n\n /**\n\n * @dev Returns the symbol of the token, usually a shorter version of the\n\n * name.\n\n */\n\n function symbol() public view returns (string memory) {\n\n return _symbol;\n\n }\n\n\n\n /**\n\n * @dev Returns the number of decimals used to get its user representation.\n\n * For example, if `decimals` equals `2`, a balance of `505` tokens should\n\n * be displayed to a user as `5,05` (`505 / 10 ** 2`).\n\n *\n\n * Tokens usually opt for a value of 18, imitating the relationship between\n\n * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is\n\n * called.\n\n *\n\n * NOTE: This information is only used for _display_ purposes: it in\n\n * no way affects any of the arithmetic of the contract, including\n\n * {IERC20-balanceOf} and {IERC20-transfer}.\n\n */\n\n function decimals() public view returns (uint8) {\n\n return _decimals;\n\n }\n\n\n\n /**\n\n * @dev See {IERC20-totalSupply}.\n\n */\n\n function totalSupply() public view override returns (uint256) {\n\n return _totalSupply;\n\n }\n\n\n\n /**\n\n * @dev See {IERC20-balanceOf}.\n\n */\n\n function balanceOf(address account) public view override returns (uint256) {\n\n return _balances[account];\n\n }\n\n\n\n /**\n\n * @dev See {IERC20-transfer}.\n\n *\n\n * Requirements:\n\n *\n\n * - `recipient` cannot be the zero address.\n\n * - the caller must have a balance of at least `amount`.\n\n */\n\n function transfer(address recipient, uint256 amount) public virtual override returns (bool) {\n\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev See {IERC20-allowance}.\n\n */\n\n function allowance(address owner, address spender) public view virtual override returns (uint256) {\n\n return _allowances[owner][spender];\n\n }\n\n\n\n /**\n\n * @dev See {IERC20-approve}.\n\n *\n\n * Requirements:\n\n *\n\n * - `spender` cannot be the zero address.\n\n */\n\n function approve(address spender, uint256 amount) public virtual override returns (bool) {\n\n _approve(_msgSender(), spender, amount);\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev See {IERC20-transferFrom}.\n\n *\n\n * Emits an {Approval} event indicating the updated allowance. This is not\n\n * required by the EIP. See the note at the beginning of {ERC20};\n\n *\n\n * Requirements:\n\n * - `sender` and `recipient` cannot be the zero address.\n\n * - `sender` must have a balance of at least `amount`.\n\n * - the caller must have allowance for ``sender``'s tokens of at least\n\n * `amount`.\n\n */\n\n function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {\n\n _transfer(sender, recipient, amount);\n\n _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, \"ERC20: transfer amount exceeds allowance\"));\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev Atomically increases the allowance granted to `spender` by the caller.\n\n *\n\n * This is an alternative to {approve} that can be used as a mitigation for\n\n * problems described in {IERC20-approve}.\n\n *\n\n * Emits an {Approval} event indicating the updated allowance.\n\n *\n\n * Requirements:\n\n *\n\n * - `spender` cannot be the zero address.\n\n */\n\n function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {\n\n _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev Atomically decreases the allowance granted to `spender` by the caller.\n\n *\n\n * This is an alternative to {approve} that can be used as a mitigation for\n\n * problems described in {IERC20-approve}.\n\n *\n\n * Emits an {Approval} event indicating the updated allowance.\n\n *\n\n * Requirements:\n\n *\n\n * - `spender` cannot be the zero address.\n\n * - `spender` must have allowance for the caller of at least\n\n * `subtractedValue`.\n\n */\n\n function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {\n\n _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, \"ERC20: decreased allowance below zero\"));\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev Moves tokens `amount` from `sender` to `recipient`.\n\n *\n\n * This is internal function is equivalent to {transfer}, and can be used to\n\n * e.g. implement automatic token fees, slashing mechanisms, etc.\n\n *\n\n * Emits a {Transfer} event.\n\n *\n\n * Requirements:\n\n *\n\n * - `sender` cannot be the zero address.\n\n * - `recipient` cannot be the zero address.\n\n * - `sender` must have a balance of at least `amount`.\n\n */\n\n function _transfer(address sender, address recipient, uint256 amount) internal virtual {\n\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n\n\n _beforeTokenTransfer(sender, recipient, amount);\n\n\n\n _balances[sender] = _balances[sender].sub(amount, \"ERC20: transfer amount exceeds balance\");\n\n _balances[recipient] = _balances[recipient].add(amount);\n\n emit Transfer(sender, recipient, amount);\n\n }\n\n\n\n /** @dev Creates `amount` tokens and assigns them to `account`, increasing\n\n * the total supply.\n\n *\n\n * Emits a {Transfer} event with `from` set to the zero address.\n\n *\n\n * Requirements\n\n *\n\n * - `to` cannot be the zero address.\n\n */\n\n function _mint(address account, uint256 amount) internal virtual {\n\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n\n\n _beforeTokenTransfer(address(0), account, amount);\n\n\n\n _totalSupply = _totalSupply.add(amount);\n\n _balances[account] = _balances[account].add(amount);\n\n emit Transfer(address(0), account, amount);\n\n }\n\n\n\n /**\n\n * @dev Destroys `amount` tokens from `account`, reducing the\n\n * total supply.\n\n *\n\n * Emits a {Transfer} event with `to` set to the zero address.\n\n *\n\n * Requirements\n\n *\n\n * - `account` cannot be the zero address.\n\n * - `account` must have at least `amount` tokens.\n\n */\n\n function _burn(address account, uint256 amount) internal virtual {\n\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n\n\n _beforeTokenTransfer(account, address(0), amount);\n\n\n\n _balances[account] = _balances[account].sub(amount, \"ERC20: burn amount exceeds balance\");\n\n _totalSupply = _totalSupply.sub(amount);\n\n emit Transfer(account, address(0), amount);\n\n }\n\n\n\n /**\n\n * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.\n\n *\n\n * This internal function is equivalent to `approve`, and can be used to\n\n * e.g. set automatic allowances for certain subsystems, etc.\n\n *\n\n * Emits an {Approval} event.\n\n *\n\n * Requirements:\n\n *\n\n * - `owner` cannot be the zero address.\n\n * - `spender` cannot be the zero address.\n\n */\n\n function _approve(address owner, address spender, uint256 amount) internal virtual {\n\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n\n }\n\n\n\n /**\n\n * @dev Sets {decimals} to a value other than the default one of 18.\n\n *\n\n * WARNING: This function should only be called from the constructor. Most\n\n * applications that interact with token contracts will not expect\n\n * {decimals} to ever change, and may work incorrectly if it does.\n\n */\n\n function _setupDecimals(uint8 decimals_) internal {\n\n _decimals = decimals_;\n\n }\n\n\n\n /**\n\n * @dev Hook that is called before any transfer of tokens. This includes\n\n * minting and burning.\n\n *\n\n * Calling conditions:\n\n *\n\n * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n\n * will be to transferred to `to`.\n\n * - when `from` is zero, `amount` tokens will be minted for `to`.\n\n * - when `to` is zero, `amount` of ``from``'s tokens will be burned.\n\n * - `from` and `to` are never both zero.\n\n *\n\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n\n */\n\n function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { }\n\n}\n\ncontract HegicStakingPool is Ownable, ERC20{\n\n using SafeMath for uint;\n\n using SafeERC20 for IERC20;\n\n\n\n // Tokens\n\n IERC20 public immutable HEGIC;\n\n IERC20 public immutable WBTC;\n\n\n\n mapping(Asset => IHegicStaking) public staking; \n\n\n\n uint public STAKING_LOT_PRICE = 888_000e18;\n\n uint public ACCURACY = 1e32;\n\n\n\n address payable public FALLBACK_RECIPIENT;\n\n address payable public FEE_RECIPIENT;\n\n \n\n uint public DISCOUNTED_LOTS = 10;\n\n uint public DISCOUNT_FIRST_LOTS = 20000; // 25%\n\n uint public DISCOUNT_FIRST_LOT = 50000; // 50%\n\n\n\n uint public performanceFee = 5000;\n\n bool public depositsAllowed = true;\n\n uint public lockUpPeriod = 15 minutes;\n\n\n\n uint public totalBalance;\n\n uint public lockedBalance;\n\n uint public totalNumberOfStakingLots;\n\n mapping(Asset => uint) public numberOfStakingLots;\n\n mapping(Asset => uint) public totalProfitPerToken;\n\n\n\n enum Asset {WBTC, ETH}\n\n\n\n address[] owners;\n\n mapping(address => uint) public ownerPerformanceFee;\n\n mapping(address => bool) public isNotFirstTime;\n\n mapping(address => uint) public lastDepositTime;\n\n mapping(address => mapping(Asset => uint)) lastProfit;\n\n mapping(address => mapping(Asset => uint)) savedProfit;\n\n\n\n event Deposit(address account, uint amount);\n\n event Withdraw(address account, uint amount);\n\n event BuyLot(uint id, Asset asset, address account);\n\n event SellLot(uint id, Asset asset, address account);\n\n event ClaimedProfit(address account, Asset asset, uint netProfit, uint fee);\n\n\n\n constructor(IERC20 _HEGIC, IERC20 _WBTC, IHegicStaking _stakingWBTC, IHegicStaking _stakingETH) public ERC20(\"Staked HEGIC\", \"sHEGIC\"){\n\n HEGIC = _HEGIC;\n\n WBTC = _WBTC;\n\n staking[Asset.WBTC] = _stakingWBTC;\n\n staking[Asset.ETH] = _stakingETH;\n\n\n\n FEE_RECIPIENT = msg.sender;\n\n FALLBACK_RECIPIENT = msg.sender;\n\n\n\n // Approving to Staking Lot Contract\n\n _HEGIC.approve(address(staking[Asset.WBTC]), 888e30);\n\n _HEGIC.approve(address(staking[Asset.ETH]), 888e30);\n\n }\n\n\n\n // Payable \n\n receive() external payable {}\n\n\n\n /**\n\n * @notice Stops the ability to add new deposits\n\n * @param _allow If set to false, new deposits will be rejected\n\n */\n\n function allowDeposits(bool _allow) external onlyOwner {\n\n depositsAllowed = _allow;\n\n }\n\n\n\n /**\n\n * @notice Changes Fee paid to creator (only paid when taking profits)\n\n * @param _fee New fee\n\n */\n\n function changePerformanceFee(uint _fee) external onlyOwner {\n\n require(_fee >= 0, \"Fee too low\");\n\n require(_fee <= 8000, \"Fee too high\");\n\n \n\n performanceFee = _fee;\n\n }\n\n\n\n /**\n\n * @notice Changes Fee Recipient address\n\n * @param _recipient New address\n\n */\n\n function changeFeeRecipient(address _recipient) external onlyOwner {\n\n FEE_RECIPIENT = payable(_recipient);\n\n }\n\n\n\n /**\n\n * @notice Changes Fallback Recipient address. This is only used in case of unexpected behavior\n\n * @param _recipient New address\n\n */\n\n function changeFallbackRecipient(address _recipient) external onlyOwner {\n\n FALLBACK_RECIPIENT = payable(_recipient);\n\n }\n\n\n\n /**\n\n * @notice Toggles effect of lockup period by setting lockUpPeriod to 0 (disabled) or to 15 minutes(enabled)\n\n * @param _unlock Boolean: if true, unlocks funds\n\n */\n\n function unlockAllFunds(bool _unlock) external onlyOwner {\n\n if(_unlock) lockUpPeriod = 0;\n\n else lockUpPeriod = 15 minutes;\n\n }\n\n\n\n /**\n\n * @notice Deposits _amount HEGIC in the contract. \n\n * \n\n * @param _amount Number of HEGIC to deposit in the contract // number of sHEGIC that will be minted\n\n */\n\n function deposit(uint _amount) external {\n\n require(_amount > 0, \"Amount too low\");\n\n require(depositsAllowed, \"Deposits are not allowed at the moment\");\n\n // set fee for that staking lot owner - this effectively sets the maximum FEE an owner can have\n\n // each time user deposits, this checks if current fee is higher or lower than previous fees\n\n // and updates it if it is lower\n\n if(ownerPerformanceFee[msg.sender] > performanceFee || !isNotFirstTime[msg.sender]) {\n\n ownerPerformanceFee[msg.sender] = performanceFee;\n\n // those that deposit in first DISCOUNTED_LOTS lots get a discount\n\n if(!isNotFirstTime[msg.sender] && totalNumberOfStakingLots < 1){\n\n ownerPerformanceFee[msg.sender] = ownerPerformanceFee[msg.sender].mul(uint(100000).sub(DISCOUNT_FIRST_LOT)).div(100000);\n\n } else if(!isNotFirstTime[msg.sender] && totalNumberOfStakingLots < DISCOUNTED_LOTS){\n\n ownerPerformanceFee[msg.sender] = ownerPerformanceFee[msg.sender].mul(uint(100000).sub(DISCOUNT_FIRST_LOTS)).div(100000);\n\n }\n\n isNotFirstTime[msg.sender] = true;\n\n }\n\n lastDepositTime[msg.sender] = block.timestamp;\n\n // receive deposit\n\n depositHegic(_amount);\n\n\n\n while(totalBalance.sub(lockedBalance) >= STAKING_LOT_PRICE){\n\n buyStakingLot();\n\n }\n\n }\n\n\n\n /**\n\n * @notice Withdraws _amount HEGIC from the contract. \n\n * \n\n * @param _amount Number of HEGIC to withdraw from contract // number of sHEGIC that will be burnt\n\n */\n\n function withdraw(uint _amount) public {\n\n require(_amount <= balanceOf(msg.sender), \"Not enough balance\");\n\n require(lastDepositTime[msg.sender].add(lockUpPeriod) <= block.timestamp, \"You deposited less than 15 mins ago. Your funds are locked\");\n\n\n\n while(totalBalance.sub(lockedBalance) < _amount){\n\n sellStakingLot();\n\n }\n\n\n\n withdrawHegic(_amount);\n\n }\n\n\n\n /**\n\n * @notice Withdraws _amount HEGIC from the contract and claims all profit pending in contract\n\n * \n\n */\n\n function claimProfitAndWithdraw() external {\n\n claimAllProfit();\n\n withdraw(balanceOf(msg.sender));\n\n }\n\n\n\n /**\n\n * @notice Claims profit for both assets. Profit will be paid to msg.sender\n\n * This is the most gas-efficient way to claim profits (instead of separately)\n\n * \n\n */\n\n function claimAllProfit() public {\n\n claimProfit(Asset.WBTC);\n\n claimProfit(Asset.ETH);\n\n }\n\n\n\n /**\n\n * @notice Claims profit for specific _asset. Profit will be paid to msg.sender\n\n * \n\n * @param _asset Asset (ETH or WBTC)\n\n */\n\n function claimProfit(Asset _asset) public {\n\n uint profit = saveProfit(msg.sender, _asset);\n\n savedProfit[msg.sender][_asset] = 0;\n\n \n\n _transferProfit(profit, _asset, msg.sender, ownerPerformanceFee[msg.sender]);\n\n }\n\n\n\n /**\n\n * @notice Returns profit to be paid when claimed\n\n * \n\n * @param _account Account to get profit for\n\n * @param _asset Asset (ETH or WBTC)\n\n */\n\n function profitOf(address _account, Asset _asset) public view returns (uint profit) {\n\n return savedProfit[_account][_asset].add(getUnsaved(_account, _asset));\n\n }\n\n\n\n /**\n\n * @notice Returns address of Hegic's ETH Staking Lot contract\n\n */\n\n function getHegicStakingETH() public view returns (IHegicStaking HegicStakingETH){\n\n return staking[Asset.ETH];\n\n }\n\n\n\n /**\n\n * @notice Returns address of Hegic's WBTC Staking Lot contract\n\n */\n\n function getHegicStakingWBTC() public view returns (IHegicStaking HegicStakingWBTC){\n\n return staking[Asset.WBTC];\n\n }\n\n\n\n /**\n\n * @notice Support function. Gets profit that has not been saved (either in Staking Lot contracts)\n\n * or in this contract\n\n * \n\n * @param _account Account to get unsaved profit for\n\n * @param _asset Asset (ETH or WBTC)\n\n */\n\n function getUnsaved(address _account, Asset _asset) public view returns (uint profit) {\n\n profit = totalProfitPerToken[_asset].sub(lastProfit[_account][_asset]).add(getUnreceivedProfitPerToken(_asset)).mul(balanceOf(_account)).div(ACCURACY);\n\n }\n\n\n\n /**\n\n * @notice Internal function. Update profit per token for _asset\n\n * \n\n * @param _asset Underlying asset (ETH or WBTC)\n\n */\n\n function updateProfit(Asset _asset) internal {\n\n uint profit;\n\n profit = staking[_asset].profitOf(address(this));\n\n if(profit > 0) staking[_asset].claimProfit();\n\n \n\n if(totalBalance <= 0) {\n\n if(_asset == Asset.ETH) FALLBACK_RECIPIENT.transfer(profit);\n\n else if(_asset == Asset.WBTC) WBTC.safeTransfer(FALLBACK_RECIPIENT, profit);\n\n } else totalProfitPerToken[_asset] = totalProfitPerToken[_asset].add(profit.mul(ACCURACY).div(totalBalance));\n\n }\n\n\n\n /**\n\n * @notice Internal function. Transfers net profit to the owner of the sHEGIC. \n\n * \n\n * @param _amount Amount of Asset (ETH or WBTC) to be sent\n\n * @param _asset Asset to be sent (ETH or WBTC)\n\n * @param _account Receiver of the net profit\n\n * @param _fee Fee % to be applied to the profit (100% = 100000)\n\n */\n\n function _transferProfit(uint _amount, Asset _asset, address _account, uint _fee) internal {\n\n uint netProfit = _amount.mul(uint(100000).sub(_fee)).div(100000);\n\n uint fee = _amount.sub(netProfit);\n\n\n\n if(_asset == Asset.ETH){\n\n payable(_account).transfer(netProfit);\n\n FEE_RECIPIENT.transfer(fee);\n\n } else if (_asset == Asset.WBTC) {\n\n WBTC.safeTransfer(_account, netProfit);\n\n WBTC.safeTransfer(FEE_RECIPIENT, fee);\n\n }\n\n emit ClaimedProfit(_account, _asset, netProfit, fee);\n\n }\n\n\n\n /**\n\n * @notice Internal function to transfer deposited HEGIC to the contract and mint sHEGIC (Staked HEGIC)\n\n * @param _amount Amount of HEGIC to deposit // Amount of sHEGIC that will be minted\n\n */\n\n function depositHegic(uint _amount) internal {\n\n totalBalance = totalBalance.add(_amount); \n\n\n\n HEGIC.safeTransferFrom(msg.sender, address(this), _amount);\n\n\n\n _mint(msg.sender, _amount);\n\n }\n\n\n\n /**\n\n * @notice Internal function. Moves _amount HEGIC from contract to user\n\n * also burns staked HEGIC (sHEGIC) tokens\n\n * @param _amount Amount of HEGIC to withdraw // Amount of sHEGIC that will be burned\n\n */\n\n function withdrawHegic(uint _amount) internal {\n\n\n\n emit Withdraw(msg.sender, _amount);\n\n\n\n _burn(msg.sender, _amount);\n\n HEGIC.safeTransfer(msg.sender, _amount);\n\n totalBalance = totalBalance.sub(_amount);\n\n }\n\n\n\n /**\n\n * @notice Internal function. Chooses which lot to buy (ETH or WBTC) and buys it\n\n *\n\n */\n\n function buyStakingLot() internal {\n\n // we buy 1 ETH staking lot, then 1 WBTC staking lot, then 1 eth, ...\n\n Asset asset = Asset.ETH;\n\n if(numberOfStakingLots[Asset.ETH] > numberOfStakingLots[Asset.WBTC]){\n\n asset = Asset.WBTC;\n\n }\n\n\n\n if(staking[asset].totalSupply() == staking[asset].MAX_SUPPLY()){\n\n if(asset == Asset.ETH) asset = Asset.WBTC;\n\n else asset = Asset.ETH;\n\n }\n\n\n\n require(staking[asset].totalSupply() < staking[asset].MAX_SUPPLY(), \"There are no more available lots for purchase\");\n\n\n\n lockedBalance = lockedBalance.add(STAKING_LOT_PRICE);\n\n staking[asset].buy(1);\n\n emit BuyLot(block.timestamp, asset, msg.sender);\n\n totalNumberOfStakingLots++;\n\n numberOfStakingLots[asset]++;\n\n }\n\n\n\n /**\n\n * @notice Internal function. Chooses which lot to sell (ETH or WBTC) and sells it\n\n *\n\n */\n\n function sellStakingLot() internal {\n\n Asset asset = Asset.ETH;\n\n if(numberOfStakingLots[Asset.ETH] < numberOfStakingLots[Asset.WBTC]){\n\n asset = Asset.WBTC;\n\n }\n\n\n\n // I check if the staking lot to be sold is locked by HEGIC.\n\n // if it is, I try switching underlying asset (which should be the previously bought lot). \n\n if(staking[asset].lastBoughtTimestamp(address(this))\n\n .add(staking[asset].lockupPeriod()) > block.timestamp){\n\n if(asset == Asset.ETH) asset = Asset.WBTC;\n\n else asset = Asset.ETH;\n\n }\n\n \n\n if(staking[asset].balanceOf(address(this)) == 0){\n\n if(asset == Asset.ETH) asset = Asset.WBTC;\n\n else asset = Asset.ETH;\n\n }\n\n\n\n require(\n\n staking[asset].lastBoughtTimestamp(address(this))\n\n .add(staking[asset].lockupPeriod()) <= block.timestamp,\n\n \"Lot sale is locked by Hegic. Funds should be available in less than 24h\"\n\n );\n\n\n\n lockedBalance = lockedBalance.sub(STAKING_LOT_PRICE);\n\n staking[asset].sell(1);\n\n emit SellLot(block.timestamp, asset, msg.sender);\n\n totalNumberOfStakingLots--;\n\n numberOfStakingLots[asset]--;\n\n }\n\n\n\n /**\n\n * @notice Support function. Calculates how much profit would receive each token if the contract claimed\n\n * profit accumulated in Hegic's Staking Lot contracts\n\n * \n\n * @param _asset Asset (WBTC or ETH)\n\n */\n\n function getUnreceivedProfitPerToken(Asset _asset) public view returns (uint unreceivedProfitPerToken){\n\n uint profit = staking[_asset].profitOf(address(this));\n\n \n\n unreceivedProfitPerToken = profit.mul(ACCURACY).div(totalBalance);\n\n }\n\n\n\n /**\n\n * @notice Saves profit for a certain _account. This profit is absolute in value\n\n * this function is called before every token transfer to keep the state of profits correctly\n\n * \n\n * @param _account account to save profit to\n\n */\n\n function saveProfit(address _account) internal {\n\n saveProfit(_account, Asset.WBTC);\n\n saveProfit(_account, Asset.ETH);\n\n }\n\n\n\n /**\n\n * @notice Internal function that saves unpaid profit to keep accounting.\n\n * \n\n * @param _account Account to save profit to\n\n * @param _asset Asset (WBTC or ETH) \n\n */\n\n function saveProfit(address _account, Asset _asset) internal returns (uint profit) {\n\n updateProfit(_asset);\n\n uint unsaved = getUnsaved(_account, _asset);\n\n lastProfit[_account][_asset] = totalProfitPerToken[_asset];\n\n profit = savedProfit[_account][_asset].add(unsaved);\n\n savedProfit[_account][_asset] = profit;\n\n }\n\n\n\n /**\n\n * @notice Support function. Relevant to the profit system. It will save state of profit before each \n\n * token transfer (either deposit or withdrawal)\n\n * \n\n * @param from Account sending tokens \n\n * @param to Account receiving tokens\n\n */\n\n function _beforeTokenTransfer(address from, address to, uint256) internal override {\n\n if (from != address(0)) saveProfit(from);\n\n if (to != address(0)) saveProfit(to);\n\n }\n\n\n\n /**\n\n * @notice Returns a boolean indicating if that specific _account can withdraw or not\n\n * (due to lockupperiod reasons)\n\n * @param _account Account to check withdrawal status \n\n */\n\n function canWithdraw(address _account) public view returns (bool) {\n\n return (lastDepositTime[_account].add(lockUpPeriod) <= block.timestamp);\n\n 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0":{"kind":"number","value":688,"string":"688"},"address":{"kind":"string","value":"0xf45eff806d9a38efdb6fcc00cf161cc19acc32af"},"source_code":{"kind":"string","value":"pragma solidity 0.6.12;\npragma experimental ABIEncoderV2;\n\ncontract IAbacusOracle{\n\n\n uint public callFee;\n\n\n function getJobResponse(uint64 _jobId) public view returns(uint64[] memory _values){ }\n\n\n function scheduleFunc(address to ,uint callTime, bytes memory data , uint fee , uint gaslimit ,uint gasprice)public payable{}\n\n\n}\n\ncontract Initializable {\n\n\n\n\n\n /**\n\n\n * @dev Indicates that the contract has been initialized.\n\n\n */\n\n\n bool private initialized;\n\n\n\n\n\n /**\n\n\n * @dev Indicates that the contract is in the process of being initialized.\n\n\n */\n\n\n bool private initializing;\n\n\n\n\n\n /**\n\n\n * @dev Modifier to use in the initializer function of a contract.\n\n\n */\n\n\n modifier initializer() {\n\n\n require(initializing || isConstructor() || !initialized, \"Contract instance has already been initialized\");\n\n\n\n\n\n bool isTopLevelCall = !initializing;\n\n\n if (isTopLevelCall) {\n\n\n initializing = true;\n\n\n initialized = true;\n\n\n }\n\n\n\n\n\n _;\n\n\n\n\n\n if (isTopLevelCall) {\n\n\n initializing = false;\n\n\n }\n\n\n }\n\n\n\n\n\n\n\n\n \n\n\n /// @dev Returns true if and only if the function is running in the constructor\n\n\n function isConstructor() private view returns (bool) {\n\n\n // extcodesize checks the size of the code stored in an address, and\n\n\n // address returns the current address. Since the code is still not\n\n\n // deployed when running a constructor, any checks on its code size will\n\n\n // yield zero, making it an effective way to detect if a contract is\n\n\n // under construction or not.\n\n\n address self = address(this);\n\n\n uint256 cs;\n\n\n assembly { cs := extcodesize(self) }\n\n\n return cs == 0;\n\n\n }\n\n\n\n\n\n // Reserved storage space to allow for layout changes in the future.\n\n\n uint256[50] private ______gap;\n\n\n \n\n\n}\n\nabstract contract Context {\n\n\n function _msgSender() internal view virtual returns (address payable) {\n\n\n return msg.sender;\n\n\n }\n\n\n\n\n\n function _msgData() internal view virtual returns (bytes memory) {\n\n\n this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691\n\n\n return msg.data;\n\n\n }\n\n\n}\n\nabstract contract AccessControl is Context {\n\n\n using EnumerableSet for EnumerableSet.AddressSet;\n\n\n using Address for address;\n\n\n\n\n\n struct RoleData {\n\n\n EnumerableSet.AddressSet members;\n\n\n bytes32 adminRole;\n\n\n }\n\n\n\n\n\n mapping (bytes32 => RoleData) private _roles;\n\n\n\n\n\n bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;\n\n\n\n\n\n /**\n\n\n * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`\n\n\n *\n\n\n * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite\n\n\n * {RoleAdminChanged} not being emitted signaling this.\n\n\n *\n\n\n * _Available since v3.1._\n\n\n */\n\n\n event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);\n\n\n\n\n\n /**\n\n\n * @dev Emitted when `account` is granted `role`.\n\n\n *\n\n\n * `sender` is the account that originated the contract call, an admin role\n\n\n * bearer except when using {_setupRole}.\n\n\n */\n\n\n event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);\n\n\n\n\n\n /**\n\n\n * @dev Emitted when `account` is revoked `role`.\n\n\n *\n\n\n * `sender` is the account that originated the contract call:\n\n\n * - if using `revokeRole`, it is the admin role bearer\n\n\n * - if using `renounceRole`, it is the role bearer (i.e. `account`)\n\n\n */\n\n\n event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);\n\n\n\n\n\n /**\n\n\n * @dev Returns `true` if `account` has been granted `role`.\n\n\n */\n\n\n function hasRole(bytes32 role, address account) public view returns (bool) {\n\n\n return _roles[role].members.contains(account);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the number of accounts that have `role`. Can be used\n\n\n * together with {getRoleMember} to enumerate all bearers of a role.\n\n\n */\n\n\n function getRoleMemberCount(bytes32 role) public view returns (uint256) {\n\n\n return _roles[role].members.length();\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns one of the accounts that have `role`. `index` must be a\n\n\n * value between 0 and {getRoleMemberCount}, non-inclusive.\n\n\n *\n\n\n * Role bearers are not sorted in any particular way, and their ordering may\n\n\n * change at any point.\n\n\n *\n\n\n * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure\n\n\n * you perform all queries on the same block. See the following\n\n\n * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post]\n\n\n * for more information.\n\n\n */\n\n\n function getRoleMember(bytes32 role, uint256 index) public view returns (address) {\n\n\n return _roles[role].members.at(index);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the admin role that controls `role`. See {grantRole} and\n\n\n * {revokeRole}.\n\n\n *\n\n\n * To change a role's admin, use {_setRoleAdmin}.\n\n\n */\n\n\n function getRoleAdmin(bytes32 role) public view returns (bytes32) {\n\n\n return _roles[role].adminRole;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Grants `role` to `account`.\n\n\n *\n\n\n * If `account` had not been already granted `role`, emits a {RoleGranted}\n\n\n * event.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - the caller must have ``role``'s admin role.\n\n\n */\n\n\n function grantRole(bytes32 role, address account) public virtual {\n\n\n require(hasRole(_roles[role].adminRole, _msgSender()), \"AccessControl: sender must be an admin to grant\");\n\n\n\n\n\n _grantRole(role, account);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Revokes `role` from `account`.\n\n\n *\n\n\n * If `account` had been granted `role`, emits a {RoleRevoked} event.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - the caller must have ``role``'s admin role.\n\n\n */\n\n\n function revokeRole(bytes32 role, address account) public virtual {\n\n\n require(hasRole(_roles[role].adminRole, _msgSender()), \"AccessControl: sender must be an admin to revoke\");\n\n\n\n\n\n _revokeRole(role, account);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Revokes `role` from the calling account.\n\n\n *\n\n\n * Roles are often managed via {grantRole} and {revokeRole}: this function's\n\n\n * purpose is to provide a mechanism for accounts to lose their privileges\n\n\n * if they are compromised (such as when a trusted device is misplaced).\n\n\n *\n\n\n * If the calling account had been granted `role`, emits a {RoleRevoked}\n\n\n * event.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - the caller must be `account`.\n\n\n */\n\n\n function renounceRole(bytes32 role, address account) public virtual {\n\n\n require(account == _msgSender(), \"AccessControl: can only renounce roles for self\");\n\n\n\n\n\n _revokeRole(role, account);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Grants `role` to `account`.\n\n\n *\n\n\n * If `account` had not been already granted `role`, emits a {RoleGranted}\n\n\n * event. Note that unlike {grantRole}, this function doesn't perform any\n\n\n * checks on the calling account.\n\n\n *\n\n\n * [WARNING]\n\n\n * ====\n\n\n * This function should only be called from the constructor when setting\n\n\n * up the initial roles for the system.\n\n\n *\n\n\n * Using this function in any other way is effectively circumventing the admin\n\n\n * system imposed by {AccessControl}.\n\n\n * ====\n\n\n */\n\n\n function _setupRole(bytes32 role, address account) internal virtual {\n\n\n _grantRole(role, account);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Sets `adminRole` as ``role``'s admin role.\n\n\n *\n\n\n * Emits a {RoleAdminChanged} event.\n\n\n */\n\n\n function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {\n\n\n emit RoleAdminChanged(role, _roles[role].adminRole, adminRole);\n\n\n _roles[role].adminRole = adminRole;\n\n\n }\n\n\n\n\n\n function _grantRole(bytes32 role, address account) private {\n\n\n if (_roles[role].members.add(account)) {\n\n\n emit RoleGranted(role, account, _msgSender());\n\n\n }\n\n\n }\n\n\n\n\n\n function _revokeRole(bytes32 role, address account) private {\n\n\n if (_roles[role].members.remove(account)) {\n\n\n emit RoleRevoked(role, account, _msgSender());\n\n\n }\n\n\n }\n\n\n}\n\ncontract ERC20Basic {\n\n\n uint public _totalSupply;\n\n\n string public name;\n\n\n string public symbol;\n\n\n uint public decimals;\n\n\n function totalSupply() public view returns (uint){}\n\n\n function balanceOf(address who) public view returns (uint){}\n\n\n function transfer(address to, uint value) public {}\n\n\n function transferFrom(address _from, address _to, uint _value) public{}\n\n\n function approve(address spender, uint amount) public {}\n\n\n function allowance(address _owner, address _spender) public view returns (uint remaining) {}\n\n\n \n\n\n event Transfer(address indexed from, address indexed to, uint value);\n\n\n}\n\ninterface IERC20 {\n\n\n /**\n\n\n * @dev Returns the amount of tokens in existence.\n\n\n */\n\n\n function totalSupply() external view returns (uint256);\n\n\n\n\n\n /**\n\n\n * @dev Returns the amount of tokens owned by `account`.\n\n\n */\n\n\n function balanceOf(address account) external view returns (uint256);\n\n\n\n\n\n /**\n\n\n * @dev Moves `amount` tokens from the caller's account to `recipient`.\n\n\n *\n\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n\n *\n\n\n * Emits a {Transfer} event.\n\n\n */\n\n\n function transfer(address recipient, uint256 amount) external returns (bool);\n\n\n\n\n\n /**\n\n\n * @dev Returns the remaining number of tokens that `spender` will be\n\n\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n\n\n * zero by default.\n\n\n *\n\n\n * This value changes when {approve} or {transferFrom} are called.\n\n\n */\n\n\n function allowance(address owner, address spender) external view returns (uint256);\n\n\n\n\n\n /**\n\n\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n\n\n *\n\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n\n *\n\n\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n\n\n * that someone may use both the old and the new allowance by unfortunate\n\n\n * transaction ordering. One possible solution to mitigate this race\n\n\n * condition is to first reduce the spender's allowance to 0 and set the\n\n\n * desired value afterwards:\n\n\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n\n\n *\n\n\n * Emits an {Approval} event.\n\n\n */\n\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n\n\n\n\n /**\n\n\n * @dev Moves `amount` tokens from `sender` to `recipient` using the\n\n\n * allowance mechanism. `amount` is then deducted from the caller's\n\n\n * allowance.\n\n\n *\n\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n\n *\n\n\n * Emits a {Transfer} event.\n\n\n */\n\n\n function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);\n\n\n\n\n\n /**\n\n\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n\n\n * another (`to`).\n\n\n *\n\n\n * Note that `value` may be zero.\n\n\n */\n\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n\n\n\n\n /**\n\n\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n\n\n * a call to {approve}. `value` is the new allowance.\n\n\n */\n\n\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n\n}\n\ncontract ERC20 is Context, IERC20 {\n\n\n using SafeMath for uint256;\n\n\n using Address for address;\n\n\n\n\n\n mapping (address => uint256) private _balances;\n\n\n mapping (address => uint256) public lockedAmount;\n\n\n mapping (address => mapping (address => uint256)) private _allowances;\n\n\n\n\n\n uint256 private _totalSupply;\n\n\n\n\n\n string private _name;\n\n\n string private _symbol;\n\n\n uint8 private _decimals;\n\n\n\n\n\n /**\n\n\n * @dev Sets the values for {name} and {symbol}, initializes {decimals} with\n\n\n * a default value of 18.\n\n\n *\n\n\n * To select a different value for {decimals}, use {_setupDecimals}.\n\n\n *\n\n\n * All three of these values are immutable: they can only be set once during\n\n\n * construction.\n\n\n */\n\n\n constructor (string memory name, string memory symbol,uint8 decimals) public {\n\n\n _name = name;\n\n\n _symbol = symbol;\n\n\n _decimals = decimals;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the name of the token.\n\n\n */\n\n\n function name() public view returns (string memory) {\n\n\n return _name;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the symbol of the token, usually a shorter version of the\n\n\n * name.\n\n\n */\n\n\n function symbol() public view returns (string memory) {\n\n\n return _symbol;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the number of decimals used to get its user representation.\n\n\n * For example, if `decimals` equals `2`, a balance of `505` tokens should\n\n\n * be displayed to a user as `5,05` (`505 / 10 ** 2`).\n\n\n *\n\n\n * Tokens usually opt for a value of 18, imitating the relationship between\n\n\n * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is\n\n\n * called.\n\n\n *\n\n\n * NOTE: This information is only used for _display_ purposes: it in\n\n\n * no way affects any of the arithmetic of the contract, including\n\n\n * {IERC20-balanceOf} and {IERC20-transfer}.\n\n\n */\n\n\n function decimals() public view returns (uint8) {\n\n\n return _decimals;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev See {IERC20-totalSupply}.\n\n\n */\n\n\n function totalSupply() public view override returns (uint256) {\n\n\n return _totalSupply;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev See {IERC20-balanceOf}.\n\n\n */\n\n\n function balanceOf(address account) public view override returns (uint256) {\n\n\n return _balances[account];\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev See {IERC20-transfer}.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `recipient` cannot be the zero address.\n\n\n * - the caller must have a balance of at least `amount`.\n\n\n */\n\n\n function transfer(address recipient, uint256 amount) public virtual override returns (bool) {\n\n\n _transfer(_msgSender(), recipient, amount);\n\n\n return true;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev See {IERC20-allowance}.\n\n\n */\n\n\n function allowance(address owner, address spender) public view virtual override returns (uint256) {\n\n\n return _allowances[owner][spender];\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev See {IERC20-approve}.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `spender` cannot be the zero address.\n\n\n */\n\n\n function approve(address spender, uint256 amount) public virtual override returns (bool) {\n\n\n _approve(_msgSender(), spender, amount);\n\n\n return true;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev See {IERC20-transferFrom}.\n\n\n *\n\n\n * Emits an {Approval} event indicating the updated allowance. This is not\n\n\n * required by the EIP. See the note at the beginning of {ERC20};\n\n\n *\n\n\n * Requirements:\n\n\n * - `sender` and `recipient` cannot be the zero address.\n\n\n * - `sender` must have a balance of at least `amount`.\n\n\n * - the caller must have allowance for ``sender``'s tokens of at least\n\n\n * `amount`.\n\n\n */\n\n\n function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {\n\n\n _transfer(sender, recipient, amount);\n\n\n _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, \"ERC20: transfer amount exceeds allowance\"));\n\n\n return true;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Atomically increases the allowance granted to `spender` by the caller.\n\n\n *\n\n\n * This is an alternative to {approve} that can be used as a mitigation for\n\n\n * problems described in {IERC20-approve}.\n\n\n *\n\n\n * Emits an {Approval} event indicating the updated allowance.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `spender` cannot be the zero address.\n\n\n */\n\n\n function availableAmount(address owner) public view returns(uint256){\n\n\n return balanceOf(owner).sub(lockedAmount[owner]);\n\n\n }\n\n\n function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {\n\n\n _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));\n\n\n return true;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Atomically decreases the allowance granted to `spender` by the caller.\n\n\n *\n\n\n * This is an alternative to {approve} that can be used as a mitigation for\n\n\n * problems described in {IERC20-approve}.\n\n\n *\n\n\n * Emits an {Approval} event indicating the updated allowance.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `spender` cannot be the zero address.\n\n\n * - `spender` must have allowance for the caller of at least\n\n\n * `subtractedValue`.\n\n\n */\n\n\n function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {\n\n\n _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, \"ERC20: decreased allowance below zero\"));\n\n\n return true;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Moves tokens `amount` from `sender` to `recipient`.\n\n\n *\n\n\n * This is internal function is equivalent to {transfer}, and can be used to\n\n\n * e.g. implement automatic token fees, slashing mechanisms, etc.\n\n\n *\n\n\n * Emits a {Transfer} event.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `sender` cannot be the zero address.\n\n\n * - `recipient` cannot be the zero address.\n\n\n * - `sender` must have a balance of at least `amount`.\n\n\n */\n\n\n function _transfer(address sender, address recipient, uint256 amount) internal virtual {\n\n\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n\n require(amount <= availableAmount(sender),\"ERC20 : amount exceeds available amount\");\n\n\n\n\n\n _beforeTokenTransfer(sender, recipient, amount);\n\n\n\n\n\n _balances[sender] = _balances[sender].sub(amount, \"ERC20: transfer amount exceeds balance\");\n\n\n _balances[recipient] = _balances[recipient].add(amount);\n\n\n emit Transfer(sender, recipient, amount);\n\n\n }\n\n\n\n\n\n /** @dev Creates `amount` tokens and assigns them to `account`, increasing\n\n\n * the total supply.\n\n\n *\n\n\n * Emits a {Transfer} event with `from` set to the zero address.\n\n\n *\n\n\n * Requirements\n\n\n *\n\n\n * - `to` cannot be the zero address.\n\n\n */\n\n\n function _mint(address account, uint256 amount) internal virtual {\n\n\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n\n\n\n\n _beforeTokenTransfer(address(0), account, amount);\n\n\n\n\n\n _totalSupply = _totalSupply.add(amount);\n\n\n _balances[account] = _balances[account].add(amount);\n\n\n emit Transfer(address(0), account, amount);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Destroys `amount` tokens from `account`, reducing the\n\n\n * total supply.\n\n\n *\n\n\n * Emits a {Transfer} event with `to` set to the zero address.\n\n\n *\n\n\n * Requirements\n\n\n *\n\n\n * - `account` cannot be the zero address.\n\n\n * - `account` must have at least `amount` tokens.\n\n\n */\n\n\n function _burn(address account, uint256 amount) internal virtual {\n\n\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n\n require(amount <= availableAmount(account),\"ERC20 : burn exceeds available amount\");\n\n\n \n\n\n _beforeTokenTransfer(account, address(0), amount);\n\n\n\n\n\n _balances[account] = _balances[account].sub(amount, \"ERC20: burn amount exceeds balance\");\n\n\n _totalSupply = _totalSupply.sub(amount);\n\n\n emit Transfer(account, address(0), amount);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens.\n\n\n *\n\n\n * This is internal function is equivalent to `approve`, and can be used to\n\n\n * e.g. set automatic allowances for certain subsystems, etc.\n\n\n *\n\n\n * Emits an {Approval} event.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `owner` cannot be the zero address.\n\n\n * - `spender` cannot be the zero address.\n\n\n */\n\n\n function _approve(address owner, address spender, uint256 amount) internal virtual {\n\n\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\n require(amount <= availableAmount(owner),\"ERC20 : approve amount exceeds available amount\");\n\n\n \n\n\n _allowances[owner][spender] = amount;\n\n\n emit Approval(owner, spender, amount);\n\n\n }\n\n\n \n\n\n function _lock(address owner,uint256 amount) internal virtual {\n\n\n require(owner != address(0), \"ERC20: lock for zero address\");\n\n\n require(amount <= availableAmount(owner),\"ERC20: lock value more tha available amount\");\n\n\n \n\n\n lockedAmount[owner] = lockedAmount[owner].add(amount);\n\n\n }\n\n\n function _release(address owner,uint256 amount) internal virtual{\n\n\n require(owner != address(0), \"ERC20: release for zero address\");\n\n\n require(amount <= lockedAmount[owner],\"ERC20 : release value more then locked value\");\n\n\n \n\n\n lockedAmount[owner] = lockedAmount[owner].sub(amount);\n\n\n }\n\n\n /**\n\n\n * @dev Sets {decimals} to a value other than the default one of 18.\n\n\n *\n\n\n * WARNING: This function should only be called from the constructor. Most\n\n\n * applications that interact with token contracts will not expect\n\n\n * {decimals} to ever change, and may work incorrectly if it does.\n\n\n */\n\n\n function _setupDecimals(uint8 decimals_) internal {\n\n\n _decimals = decimals_;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Hook that is called before any transfer of tokens. This includes\n\n\n * minting and burning.\n\n\n *\n\n\n * Calling conditions:\n\n\n *\n\n\n * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n\n\n * will be to transferred to `to`.\n\n\n * - when `from` is zero, `amount` tokens will be minted for `to`.\n\n\n * - when `to` is zero, `amount` of ``from``'s tokens will be burned.\n\n\n * - `from` and `to` are never both zero.\n\n\n *\n\n\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n\n\n */\n\n\n function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { }\n\n\n}\n\nlibrary Address {\n\n\n /**\n\n\n * @dev Returns true if `account` is a contract.\n\n\n *\n\n\n * [IMPORTANT]\n\n\n * ====\n\n\n * It is unsafe to assume that an address for which this function returns\n\n\n * false is an externally-owned account (EOA) and not a contract.\n\n\n *\n\n\n * Among others, `isContract` will return false for the following\n\n\n * types of addresses:\n\n\n *\n\n\n * - an externally-owned account\n\n\n * - a contract in construction\n\n\n * - an address where a contract will be created\n\n\n * - an address where a contract lived, but was destroyed\n\n\n * ====\n\n\n */\n\n\n function isContract(address account) internal view returns (bool) {\n\n\n // According to EIP-1052, 0x0 is the value returned for not-yet created accounts\n\n\n // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned\n\n\n // for accounts without code, i.e. `keccak256('')`\n\n\n bytes32 codehash;\n\n\n bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;\n\n\n // solhint-disable-next-line no-inline-assembly\n\n\n assembly { codehash := extcodehash(account) }\n\n\n return (codehash != accountHash && codehash != 0x0);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n\n\n * `recipient`, forwarding all available gas and reverting on errors.\n\n\n *\n\n\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n\n\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n\n\n * imposed by `transfer`, making them unable to receive funds via\n\n\n * `transfer`. {sendValue} removes this limitation.\n\n\n *\n\n\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n\n\n *\n\n\n * IMPORTANT: because control is transferred to `recipient`, care must be\n\n\n * taken to not create reentrancy vulnerabilities. Consider using\n\n\n * {ReentrancyGuard} or the\n\n\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n\n\n */\n\n\n function sendValue(address payable recipient, uint256 amount) internal {\n\n\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n\n\n\n\n // solhint-disable-next-line avoid-low-level-calls, avoid-call-value\n\n\n (bool success, ) = recipient.call{ value: amount }(\"\");\n\n\n require(success, \"Address: unable to send value, recipient may have reverted\");\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Performs a Solidity function call using a low level `call`. A\n\n\n * plain`call` is an unsafe replacement for a function call: use this\n\n\n * function instead.\n\n\n *\n\n\n * If `target` reverts with a revert reason, it is bubbled up by this\n\n\n * function (like regular Solidity function calls).\n\n\n *\n\n\n * Returns the raw returned data. To convert to the expected return value,\n\n\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `target` must be a contract.\n\n\n * - calling `target` with `data` must not revert.\n\n\n *\n\n\n * _Available since v3.1._\n\n\n */\n\n\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n\n\n return functionCall(target, data, \"Address: low-level call failed\");\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n\n\n * `errorMessage` as a fallback revert reason when `target` reverts.\n\n\n *\n\n\n * _Available since v3.1._\n\n\n */\n\n\n function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {\n\n\n return _functionCallWithValue(target, data, 0, errorMessage);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n\n\n * but also transferring `value` wei to `target`.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - the calling contract must have an ETH balance of at least `value`.\n\n\n * - the called Solidity function must be `payable`.\n\n\n *\n\n\n * _Available since v3.1._\n\n\n */\n\n\n function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n\n\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n\n\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n\n\n *\n\n\n * _Available since v3.1._\n\n\n */\n\n\n function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {\n\n\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n\n\n return _functionCallWithValue(target, data, value, errorMessage);\n\n\n }\n\n\n\n\n\n function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {\n\n\n require(isContract(target), \"Address: call to non-contract\");\n\n\n\n\n\n // solhint-disable-next-line avoid-low-level-calls\n\n\n (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);\n\n\n if (success) {\n\n\n return returndata;\n\n\n } else {\n\n\n // Look for revert reason and bubble it up if present\n\n\n if (returndata.length > 0) {\n\n\n // The easiest way to bubble the revert reason is using memory via assembly\n\n\n\n\n\n // solhint-disable-next-line no-inline-assembly\n\n\n assembly {\n\n\n let returndata_size := mload(returndata)\n\n\n revert(add(32, returndata), returndata_size)\n\n\n }\n\n\n } else {\n\n\n revert(errorMessage);\n\n\n }\n\n\n }\n\n\n }\n\n\n}\n\nlibrary EnumerableSet {\n\n\n // To implement this library for multiple types with as little code\n\n\n // repetition as possible, we write it in terms of a generic Set type with\n\n\n // bytes32 values.\n\n\n // The Set implementation uses private functions, and user-facing\n\n\n // implementations (such as AddressSet) are just wrappers around the\n\n\n // underlying Set.\n\n\n // This means that we can only create new EnumerableSets for types that fit\n\n\n // in bytes32.\n\n\n\n\n\n struct Set {\n\n\n // Storage of set values\n\n\n bytes32[] _values;\n\n\n\n\n\n // Position of the value in the `values` array, plus 1 because index 0\n\n\n // means a value is not in the set.\n\n\n mapping (bytes32 => uint256) _indexes;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Add a value to a set. O(1).\n\n\n *\n\n\n * Returns true if the value was added to the set, that is if it was not\n\n\n * already present.\n\n\n */\n\n\n function _add(Set storage set, bytes32 value) private returns (bool) {\n\n\n if (!_contains(set, value)) {\n\n\n set._values.push(value);\n\n\n // The value is stored at length-1, but we add 1 to all indexes\n\n\n // and use 0 as a sentinel value\n\n\n set._indexes[value] = set._values.length;\n\n\n return true;\n\n\n } else {\n\n\n return false;\n\n\n }\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Removes a value from a set. O(1).\n\n\n *\n\n\n * Returns true if the value was removed from the set, that is if it was\n\n\n * present.\n\n\n */\n\n\n function _remove(Set storage set, bytes32 value) private returns (bool) {\n\n\n // We read and store the value's index to prevent multiple reads from the same storage slot\n\n\n uint256 valueIndex = set._indexes[value];\n\n\n\n\n\n if (valueIndex != 0) { // Equivalent to contains(set, value)\n\n\n // To delete an element from the _values array in O(1), we swap the element to delete with the last one in\n\n\n // the array, and then remove the last element (sometimes called as 'swap and pop').\n\n\n // This modifies the order of the array, as noted in {at}.\n\n\n\n\n\n uint256 toDeleteIndex = valueIndex - 1;\n\n\n uint256 lastIndex = set._values.length - 1;\n\n\n\n\n\n // When the value to delete is the last one, the swap operation is unnecessary. However, since this occurs\n\n\n // so rarely, we still do the swap anyway to avoid the gas cost of adding an 'if' statement.\n\n\n\n\n\n bytes32 lastvalue = set._values[lastIndex];\n\n\n\n\n\n // Move the last value to the index where the value to delete is\n\n\n set._values[toDeleteIndex] = lastvalue;\n\n\n // Update the index for the moved value\n\n\n set._indexes[lastvalue] = toDeleteIndex + 1; // All indexes are 1-based\n\n\n\n\n\n // Delete the slot where the moved value was stored\n\n\n set._values.pop();\n\n\n\n\n\n // Delete the index for the deleted slot\n\n\n delete set._indexes[value];\n\n\n\n\n\n return true;\n\n\n } else {\n\n\n return false;\n\n\n }\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns true if the value is in the set. O(1).\n\n\n */\n\n\n function _contains(Set storage set, bytes32 value) private view returns (bool) {\n\n\n return set._indexes[value] != 0;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the number of values on the set. O(1).\n\n\n */\n\n\n function _length(Set storage set) private view returns (uint256) {\n\n\n return set._values.length;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the value stored at position `index` in the set. O(1).\n\n\n *\n\n\n * Note that there are no guarantees on the ordering of values inside the\n\n\n * array, and it may change when more values are added or removed.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `index` must be strictly less than {length}.\n\n\n */\n\n\n function _at(Set storage set, uint256 index) private view returns (bytes32) {\n\n\n require(set._values.length > index, \"EnumerableSet: index out of bounds\");\n\n\n return set._values[index];\n\n\n }\n\n\n\n\n\n // AddressSet\n\n\n\n\n\n struct AddressSet {\n\n\n Set _inner;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Add a value to a set. O(1).\n\n\n *\n\n\n * Returns true if the value was added to the set, that is if it was not\n\n\n * already present.\n\n\n */\n\n\n function add(AddressSet storage set, address value) internal returns (bool) {\n\n\n return _add(set._inner, bytes32(uint256(value)));\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Removes a value from a set. O(1).\n\n\n *\n\n\n * Returns true if the value was removed from the set, that is if it was\n\n\n * present.\n\n\n */\n\n\n function remove(AddressSet storage set, address value) internal returns (bool) {\n\n\n return _remove(set._inner, bytes32(uint256(value)));\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns true if the value is in the set. O(1).\n\n\n */\n\n\n function contains(AddressSet storage set, address value) internal view returns (bool) {\n\n\n return _contains(set._inner, bytes32(uint256(value)));\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the number of values in the set. O(1).\n\n\n */\n\n\n function length(AddressSet storage set) internal view returns (uint256) {\n\n\n return _length(set._inner);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the value stored at position `index` in the set. O(1).\n\n\n *\n\n\n * Note that there are no guarantees on the ordering of values inside the\n\n\n * array, and it may change when more values are added or removed.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `index` must be strictly less than {length}.\n\n\n */\n\n\n function at(AddressSet storage set, uint256 index) internal view returns (address) {\n\n\n return address(uint256(_at(set._inner, index)));\n\n\n }\n\n\n\n\n\n\n\n\n // UintSet\n\n\n\n\n\n struct UintSet {\n\n\n Set _inner;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Add a value to a set. O(1).\n\n\n *\n\n\n * Returns true if the value was added to the set, that is if it was not\n\n\n * already present.\n\n\n */\n\n\n function add(UintSet storage set, uint256 value) internal returns (bool) {\n\n\n return _add(set._inner, bytes32(value));\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Removes a value from a set. O(1).\n\n\n *\n\n\n * Returns true if the value was removed from the set, that is if it was\n\n\n * present.\n\n\n */\n\n\n function remove(UintSet storage set, uint256 value) internal returns (bool) {\n\n\n return _remove(set._inner, bytes32(value));\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns true if the value is in the set. O(1).\n\n\n */\n\n\n function contains(UintSet storage set, uint256 value) internal view returns (bool) {\n\n\n return _contains(set._inner, bytes32(value));\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the number of values on the set. O(1).\n\n\n */\n\n\n function length(UintSet storage set) internal view returns (uint256) {\n\n\n return _length(set._inner);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the value stored at position `index` in the set. O(1).\n\n\n *\n\n\n * Note that there are no guarantees on the ordering of values inside the\n\n\n * array, and it may change when more values are added or removed.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `index` must be strictly less than {length}.\n\n\n */\n\n\n function at(UintSet storage set, uint256 index) internal view returns (uint256) {\n\n\n return uint256(_at(set._inner, index));\n\n\n }\n\n\n}\n\nlibrary SafeMath {\n\n\n /**\n\n\n * @dev Returns the addition of two unsigned integers, reverting on\n\n\n * overflow.\n\n\n *\n\n\n * Counterpart to Solidity's `+` operator.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - Addition cannot overflow.\n\n\n */\n\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n\n\n uint256 c = a + b;\n\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n\n\n\n\n return c;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the subtraction of two unsigned integers, reverting on\n\n\n * overflow (when the result is negative).\n\n\n *\n\n\n * Counterpart to Solidity's `-` operator.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - Subtraction cannot overflow.\n\n\n */\n\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n\n\n return sub(a, b, \"SafeMath: subtraction overflow\");\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the subtraction of two unsigned integers, reverting with custom message on\n\n\n * overflow (when the result is negative).\n\n\n *\n\n\n * Counterpart to Solidity's `-` operator.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - Subtraction cannot overflow.\n\n\n */\n\n\n function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n\n require(b <= a, errorMessage);\n\n\n uint256 c = a - b;\n\n\n\n\n\n return c;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the multiplication of two unsigned integers, reverting on\n\n\n * overflow.\n\n\n *\n\n\n * Counterpart to Solidity's `*` operator.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - Multiplication cannot overflow.\n\n\n */\n\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n\n\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n\n\n // benefit is lost if 'b' is also tested.\n\n\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n\n\n if (a == 0) {\n\n\n return 0;\n\n\n }\n\n\n\n\n\n uint256 c = a * b;\n\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n\n\n\n\n return c;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the integer division of two unsigned integers. Reverts on\n\n\n * division by zero. The result is rounded towards zero.\n\n\n *\n\n\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n\n\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n\n\n * uses an invalid opcode to revert (consuming all remaining gas).\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - The divisor cannot be zero.\n\n\n */\n\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n\n\n return div(a, b, \"SafeMath: division by zero\");\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the integer division of two unsigned integers. Reverts with custom message on\n\n\n * division by zero. The result is rounded towards zero.\n\n\n *\n\n\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n\n\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n\n\n * uses an invalid opcode to revert (consuming all remaining gas).\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - The divisor cannot be zero.\n\n\n */\n\n\n function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n\n require(b > 0, errorMessage);\n\n\n uint256 c = a / b;\n\n\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n\n\n\n\n return c;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n\n\n * Reverts when dividing by zero.\n\n\n *\n\n\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n\n\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n\n\n * invalid opcode to revert (consuming all remaining gas).\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - The divisor cannot be zero.\n\n\n */\n\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n\n\n return mod(a, b, \"SafeMath: modulo by zero\");\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n\n\n * Reverts with custom message when dividing by zero.\n\n\n *\n\n\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n\n\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n\n\n * invalid opcode to revert (consuming all remaining gas).\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - The divisor cannot be zero.\n\n\n */\n\n\n function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n\n require(b != 0, errorMessage);\n\n\n return a % b;\n\n\n }\n\n\n}\n\ncontract Pausable is Context {\n\n\n /**\n\n\n * @dev Emitted when the pause is triggered by `account`.\n\n\n */\n\n\n event Paused(address account);\n\n\n\n\n\n /**\n\n\n * @dev Emitted when the pause is lifted by `account`.\n\n\n */\n\n\n event Unpaused(address account);\n\n\n\n\n\n bool private _paused;\n\n\n\n\n\n /**\n\n\n * @dev Initializes the contract in unpaused state.\n\n\n */\n\n\n constructor () internal {\n\n\n _paused = false;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns true if the contract is paused, and false otherwise.\n\n\n */\n\n\n function paused() public view returns (bool) {\n\n\n return _paused;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Modifier to make a function callable only when the contract is not paused.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - The contract must not be paused.\n\n\n */\n\n\n modifier whenNotPaused() {\n\n\n require(!_paused, \"Pausable: paused\");\n\n\n _;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Modifier to make a function callable only when the contract is paused.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - The contract must be paused.\n\n\n */\n\n\n modifier whenPaused() {\n\n\n require(_paused, \"Pausable: not paused\");\n\n\n _;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Triggers stopped state.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - The contract must not be paused.\n\n\n */\n\n\n function _pause() internal virtual whenNotPaused {\n\n\n _paused = true;\n\n\n emit Paused(_msgSender());\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns to normal state.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - The contract must be paused.\n\n\n */\n\n\n function _unpause() internal virtual whenPaused {\n\n\n _paused = false;\n\n\n emit Unpaused(_msgSender());\n\n\n }\n\n\n}\n\nabstract contract ERC20Pausable is ERC20, Pausable {\n\n\n /**\n\n\n * @dev See {ERC20-_beforeTokenTransfer}.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - the contract must not be paused.\n\n\n */\n\n\n function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual override {\n\n\n super._beforeTokenTransfer(from, to, amount);\n\n\n\n\n\n require(!paused(), \"ERC20Pausable: token transfer while paused\");\n\n\n }\n\n\n}\n\ncontract wERC20 is Context, AccessControl, ERC20, ERC20Pausable {\n\n\n bytes32 public constant MINTER_ROLE = keccak256(\"MINTER_ROLE\");\n\n\n bytes32 public constant PAUSER_ROLE = keccak256(\"PAUSER_ROLE\");\n\n\n bytes32 public constant ETMOWNER_ROLE = keccak256(\"ETM_ROLE\");\n\n\n\n\n\n /**\n\n\n * @dev Grants `DEFAULT_ADMIN_ROLE`, `MINTER_ROLE` and `PAUSER_ROLE` to the\n\n\n * account that deploys the contract.\n\n\n *\n\n\n * See {ERC20-constructor}.\n\n\n */\n\n\n constructor(string memory name, string memory symbol,uint8 decimals,address admin,address etmOwner) public ERC20(name, symbol,decimals) {\n\n\n _setupRole(DEFAULT_ADMIN_ROLE, admin);\n\n\n _setupRole(ETMOWNER_ROLE, etmOwner);\n\n\n _setupRole(MINTER_ROLE, admin);\n\n\n _setupRole(PAUSER_ROLE, admin);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Creates `amount` new tokens for `to`.\n\n\n *\n\n\n * See {ERC20-_mint}.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - the caller must have the `MINTER_ROLE`.\n\n\n */\n\n\n function mint(address to, uint256 amount) public virtual {\n\n\n require(hasRole(MINTER_ROLE, _msgSender()), \"ERC20PresetMinterPauser: must have minter role to mint\");\n\n\n _mint(to, amount);\n\n\n }\n\n\n \n\n\n function burnFrom(address _from,uint256 amount) public virtual{\n\n\n require(hasRole(MINTER_ROLE, _msgSender()), \"ERC20PresetMinterPauser: must have admin role to burn\");\n\n\n _burn(_from,amount);\n\n\n }\n\n\n \n\n\n /**\n\n\n * @dev Pauses all token transfers.\n\n\n *\n\n\n * See {ERC20Pausable} and {Pausable-_pause}.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - the caller must have the `PAUSER_ROLE`.\n\n\n */\n\n\n function pause() public virtual {\n\n\n require(hasRole(PAUSER_ROLE, _msgSender()), \"ERC20PresetMinterPauser: must have pauser role to pause\");\n\n\n _pause();\n\n\n }\n\n\n function changeAdmin(address admin) public virtual{\n\n\n require(hasRole(ETMOWNER_ROLE, _msgSender()), \"ERC20PresetMinterPauser: must have admin role\");\n\n\n _setupRole(DEFAULT_ADMIN_ROLE, admin);\n\n\n _setupRole(MINTER_ROLE, admin);\n\n\n _setupRole(PAUSER_ROLE, admin); \n\n\n }\n\n\n /**\n\n\n * @dev Unpauses all token transfers.\n\n\n *\n\n\n * See {ERC20Pausable} and {Pausable-_unpause}.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - the caller must have the `PAUSER_ROLE`.\n\n\n */\n\n\n function unpause() public virtual {\n\n\n require(hasRole(PAUSER_ROLE, _msgSender()), \"ERC20PresetMinterPauser: must have pauser role to unpause\");\n\n\n _unpause();\n\n\n }\n\n\n \n\n\n function lock(address account , uint256 amount) public virtual{\n\n\n require(hasRole(MINTER_ROLE, _msgSender()), \"ERC20PresetMinterPauser: must have admin role to lock\");\n\n\n _lock(account,amount);\n\n\n }\n\n\n \n\n\n function release(address account , uint256 amount) public virtual{\n\n\n require(hasRole(MINTER_ROLE, _msgSender()), \"ERC20PresetMinterPauser: must have admin role to release\");\n\n\n _release(account,amount);\n\n\n }\n\n\n function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual override(ERC20, ERC20Pausable) {\n\n\n super._beforeTokenTransfer(from, to, amount);\n\n\n }\n\n\n}\n\nnt) public orderUSDValue;\n\n\n \n\n\n /*=========Structs and Initializer================\n\n\n --------------------------------*/ \n\n\n \n\n\n struct freeStorage{ //USER DEPOSIT / BORROW STRUCTURE\n\n\n uint amount;\n\n\n uint time;\n\n\n string wtoken;\n\n\n uint usdvalue;\n\n\n }\n\n\n \n\n\n struct matchedOrder{ //RUNNING OR MATCHED ORDERS IN THIS FORM\n\n\n address supplier;\n\n\n address borrower;\n\n\n uint time;\n\n\n uint expiryDate;\n\n\n uint duration;\n\n\n uint amount;\n\n\n uint usdvalue;\n\n\n uint yield;\n\n\n string wtoken;\n\n\n uint duesPaid;\n\n\n }\n\n\n\n\n\n struct Order{ // PENDING ORDERS IN THIS FORMAT\n\n\n address creator;\n\n\n uint duration;\n\n\n uint amount;\n\n\n uint yield;\n\n\n string wtoken;\n\n\n } \n\n\n \n\n\n struct User{\n\n\n uint totalDeposit; //USD VALUE OF TOTAL DEPOSIT AT DEPOSIT TIME\n\n\n uint totalBorrowed; //USD VALUE OF TOTAL DEPOSIT AT BORROW TIME\n\n\n freeStorage [] myDeposits; //DEPOSIT DATA\n\n\n freeStorage [] myBorrows; //BORROW DATA\n\n\n mapping(string => uint) deposits; //CURRENCY-WISE TOTAL DEPOSIT COUNT FULL VALUE \n\n\n mapping(string => uint) borrows; //CURRENCY-WISE TOTAL BORROW COUNT FULL VALUE\n\n\n uint64 [] borrowedOrders; //BORROWED ORDER - ORDER ID\n\n\n uint64 [] createdOrders; //CREATED ORDER - ORDER ID\n\n\n uint64 [] myOrders; //MATCHED ORDR - ORDER ID\n\n\n }\n\n\n \n\n\n function initializeAddress(address payable EMMaddress,address AbacusAddress, address payable Initaddress) external initializer{\n\n\n EMM = EcoMoneyManager(EMMaddress);\n\n\n abacus = IAbacusOracle(AbacusAddress); \n\n\n Init = EcoceliumInit(Initaddress);\n\n\n }\n\n\n\n\n\n /*============Main Functions===============\n\n\n Key Notes - \n\n\n 1) Always call main functions of Data Manager with Wrapped Token\n\n\n 2) _status signifies (status == Status.OPENCREATOR) operation - Returns True for Deposit Functions and False for Borrow Function\n\n\n 3) require(Init.friendlyaddress(msg.sender) ,\"Not Friendly Address\"); - This is mentioned in the EcoceliumInit Contract\n\n\n 4) FreePusher/Popper are for Liquidity Pools and push/pop order and matchOrder is the Order Matching Engine\n\n\n 5) Fetch Token Price Returns Values in 10**8\n\n\n 6) Amounts are without setting off Token Decimals\n\n\n ---------------------------------*/\n\n\n \n\n\n function freePusher(address userAddress, string memory token, uint _amount, bool _status) external { //_status signifies (status == Status.OPENCREATOR) operation\n\n\n require(Init.friendlyaddress(msg.sender) ,\"Not Friendly Address\");\n\n\n uint _usdValue = USDValue(_amount, token);\n\n\n freeStorage memory newStorage = freeStorage({ amount: _amount,\n\n\n time: now,\n\n\n wtoken: token,\n\n\n usdvalue: _usdValue });\n\n\n if(_status){\n\n\n users[userAddress].myDeposits.push(newStorage);\n\n\n users[userAddress].totalDeposit += _usdValue;\n\n\n users[userAddress].deposits[token] += _amount;\n\n\n } else {\n\n\n users[userAddress].myBorrows.push(newStorage);\n\n\n users[userAddress].totalBorrowed += _usdValue;\n\n\n users[userAddress].borrows[token] += _amount;\n\n\n }\n\n\n }\n\n\n \n\n\n function freePopper(address userAddress, string memory _tokenSymbol, uint _amount, bool _status) public returns (uint dues) {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n if(_status) { \n\n\n require(users[userAddress].deposits[_tokenSymbol]>=_amount, \"Insufficient Deposits\");\n\n\n users[userAddress].deposits[_tokenSymbol] -= _amount;\n\n\n } else {\n\n\n require(users[userAddress].borrows[_tokenSymbol]>=_amount,\"Insufficient Borrowings\");\n\n\n users[userAddress].borrows[_tokenSymbol] -= _amount;\n\n\n }\n\n\n uint amountLeft= _amount;\n\n\n freeStorage [] storage mystorage = _status ? users[userAddress].myDeposits : users[userAddress].myBorrows;\n\n\n for( uint i= mystorage.length-1; amountLeft >0 ; i--){\n\n\n if(keccak256(abi.encodePacked(mystorage[i].wtoken)) != keccak256(abi.encodePacked(_tokenSymbol))) { continue; }\n\n\n if (mystorage[i].amount <= amountLeft){\n\n\n amountLeft -= mystorage[i].amount;\n\n\n _status ? users[userAddress].totalDeposit -= mystorage[i].usdvalue : users[userAddress].totalBorrowed -= mystorage[i].usdvalue;\n\n\n dues+= calculateECOEarning(USDValue(mystorage[i].amount,_tokenSymbol), _tokenSymbol, mystorage[i].time);\n\n\n mystorage.pop(); \n\n\n } else {\n\n\n _status ? users[userAddress].totalDeposit -= (mystorage[i].amount-amountLeft)*mystorage[i].usdvalue : users[userAddress].totalBorrowed -= (mystorage[i].amount-amountLeft)*mystorage[i].usdvalue;\n\n\n mystorage[i].amount -= amountLeft;\n\n\n dues += calculateECOEarning(USDValue(amountLeft,_tokenSymbol), _tokenSymbol, mystorage[i].time);\n\n\n amountLeft = 0;\n\n\n }\n\n\n } \n\n\n _status ? users[userAddress].myDeposits = mystorage : users[userAddress].myBorrows = mystorage;\n\n\n }\n\n\n \n\n\n function pushOrder(address userAddress,string memory _tokenSymbol ,uint _amount,uint _duration, uint _yield, bool _status) internal returns (uint){\n\n\n (uint64 _orderId,uint newAmount,uint fee) = _ordersub(_amount,userAddress,_duration,_tokenSymbol);\n\n\n openOrderMap[_orderId] = Order({ \n\n\n creator : userAddress,\n\n\n duration : _duration,\n\n\n amount : newAmount,\n\n\n yield : _yield,\n\n\n wtoken : _tokenSymbol\n\n\n });\n\n\n if(_status) {\n\n\n orderStatus[_orderId] = Status.OPENCREATOR;\n\n\n users[userAddress].createdOrders.push(_orderId);\n\n\n } else {\n\n\n orderStatus[_orderId] = Status.OPENBORROW;\n\n\n users[userAddress].borrowedOrders.push(_orderId); }\n\n\n poolSorter(_orderId, _tokenSymbol, true);\n\n\n orderUSDValue[_orderId]=USDValue(_amount,_tokenSymbol);\n\n\n return fee;\n\n\n }\n\n\n \n\n\n function poolSorter(uint64 _orderId, string memory _tokenSymbol, bool _status) internal { //Status here signifies Insertion if True, and Deletion if false\n\n\n uint64 [] memory temp;\n\n\n bool task;\n\n\n poolindex[_tokenSymbol]=0;\n\n\n\tif(orderpool[_tokenSymbol].length==0 && _status) { orderpool[_tokenSymbol][0] = _orderId;\t}\n\n\n for((uint i, uint j)=(0,0);i<orderpool[_tokenSymbol].length;(i++,j++)) {\n\n\n temp[j]=orderpool[_tokenSymbol][i];\n\n\n if(!task && _status && openOrderMap[temp[j]].yield > openOrderMap[_orderId].yield) { //Insertion Case\n\n\n temp[j]=_orderId; temp[++j]=orderpool[_tokenSymbol][i]; task = true;\n\n\n }else if(!task && !_status && _orderId == temp[j]){ //Deletion Case\n\n\n temp[j]=orderpool[_tokenSymbol][++i]; task = true;\n\n\n }\n\n\n if(orderStatus[orderpool[_tokenSymbol][i-1]]==Status.OPENBORROW && orderStatus[orderpool[_tokenSymbol][i]]==Status.OPENCREATOR) { //Assigns updatePoolIndex\n\n\n poolindex[_tokenSymbol] = i;\n\n\n break;\n\n\n }\n\n\n }\n\n\n orderpool[_tokenSymbol] = temp;\n\n\n }\n\n\n \n\n\n function matchOrder(address userAddress, string memory _tokenSymbol ,uint _amount,uint _duration,uint _yield, uint64 _orderId, bool _status) internal {\n\n\n matchOrderMap[_orderId] = matchedOrder({ \n\n\n supplier : (orderStatus[_orderId] == Status.OPENBORROW) ? userAddress : openOrderMap[_orderId].creator,\n\n\n borrower : (orderStatus[_orderId] == Status.OPENCREATOR) ? userAddress : openOrderMap[_orderId].creator,\n\n\n time : now,\n\n\n expiryDate : now + _duration*(30 days),\n\n\n duration : _duration,\n\n\n amount : _amount,\n\n\n usdvalue : USDValue(_amount,_tokenSymbol),\n\n\n yield : _yield,\n\n\n wtoken : _tokenSymbol,\n\n\n duesPaid : 0\n\n\n });\n\n\n _status ? delete users[openOrderMap[_orderId].creator].borrowedOrders[_orderId] : delete users[userAddress].createdOrders[_orderId];\n\n\n delete openOrderMap[_orderId];\n\n\n orderStatus[_orderId]=Status.MATCHED;\n\n\n orderUSDValue[_orderId]=USDValue(_amount,_tokenSymbol);\n\n\n users[matchOrderMap[_orderId].supplier].myOrders.push(_orderId);\n\n\n users[matchOrderMap[_orderId].borrower].myOrders.push(_orderId);\n\n\n scheduleExpiry(_orderId);\n\n\n scheduleCheck(_orderId,matchOrderMap[_orderId].borrower,1);\n\n\n EMM.mintWrappedToken(matchOrderMap[_orderId].borrower, _amount, _tokenSymbol);\n\n\n Init.emitOrderCreated(userAddress,_duration,_yield,_amount,_tokenSymbol); \n\n\n }\n\n\n \n\n\n function newOrder(address userAddress,string memory _tokenSymbol ,uint _amount,uint _duration, uint _yield, bool _status) external {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n uint amountLeft= _amount;\n\n\n uint index;\n\n\n if(_status){\n\n\n index = poolindex[_tokenSymbol]-1;\n\n\n users[userAddress].deposits[_tokenSymbol] +=_amount;\n\n\n users[userAddress].totalDeposit += USDValue(_amount, _tokenSymbol);\n\n\n } else {\n\n\n index = poolindex[_tokenSymbol];\n\n\n users[userAddress].borrows[_tokenSymbol] +=_amount;\n\n\n users[userAddress].totalBorrowed += USDValue(_amount, _tokenSymbol);\n\n\n }\n\n\n while(amountLeft>0){\n\n\n if(poolindex[_tokenSymbol] == 0) { pushOrder(userAddress, _tokenSymbol, _amount, _duration, _yield, _status); break; }\n\n\n Order memory iOrder = openOrderMap[orderpool[_tokenSymbol][index]];\n\n\n if((_status && _yield>iOrder.yield) || (!_status && _yield<iOrder.yield) || (_status)?(orderStatus[orderpool[_tokenSymbol][index]] == Status.OPENCREATOR):(orderStatus[orderpool[_tokenSymbol][index]] == Status.OPENBORROW)){\n\n\n pushOrder(userAddress, _tokenSymbol, _amount, _duration, _yield, _status);\n\n\n break;\n\n\n } else {\n\n\n uint tduration = _duration > iOrder.duration ? _duration : iOrder.duration;\n\n\n uint tyield = _yield > iOrder.yield ? iOrder.yield : _yield;\n\n\n uint64 tID = orderpool[_tokenSymbol][index];\n\n\n if(iOrder.amount>=amountLeft) { \n\n\n if(iOrder.amount != amountLeft) {\n\n\n pushOrder(iOrder.creator, _tokenSymbol, iOrder.amount-amountLeft, iOrder.duration, iOrder.yield, !_status); }\n\n\n matchOrder(userAddress, _tokenSymbol, amountLeft, tduration, tyield, tID, _status);\n\n\n amountLeft=0;\n\n\n } else {\n\n\n pushOrder(userAddress, _tokenSymbol, amountLeft- iOrder.amount, _duration, _yield, _status);\n\n\n matchOrder(userAddress, _tokenSymbol, amountLeft, tduration, tyield, tID , _status);\n\n\n amountLeft -= openOrderMap[orderpool[_tokenSymbol][index]].amount; }\n\n\n }\n\n\n }\n\n\n }\n\n\n \n\n\n function orderExpired (uint64 _orderId) public {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n require (matchOrderMap[_orderId].expiryDate <= now);\n\n\n EMM.releaseWrappedToken(matchOrderMap[_orderId].supplier,matchOrderMap[_orderId].amount, matchOrderMap[_orderId].wtoken); \n\n\n users[matchOrderMap[_orderId].supplier].totalDeposit -= matchOrderMap[_orderId].usdvalue;\n\n\n users[matchOrderMap[_orderId].borrower].totalBorrowed -= matchOrderMap[_orderId].usdvalue;\n\n\n orderStatus[_orderId] = Status.CLOSED;\n\n\n //Init.OrderExpired(_orderId,msgSender,orderMonthlyDue(_orderId,msgSender,_duration));\n\n\n } \n\n\n\n\n\n function payDue(uint64 _orderId,uint _duration,address msgSender) external returns (uint due){\n\n\n due = orderMonthlyDue(_orderId,_duration);\n\n\n uint fee = (due*Init.rewardFee())/100;\n\n\n EMM.DepositManager(Init.ECO(), due+fee, msgSender);\n\n\n Init.setOwnerFeeVault(Init.WRAP_ECO_SYMBOL(), fee);\n\n\n matchOrderMap[_orderId].duesPaid += 1;\n\n\n matchOrderMap[_orderId].duesPaid >= uint((now - matchOrderMap[_orderId].time)/30 days) ? Init.setUserLocked(msgSender,false) : Init.setUserLocked(msgSender,true);\n\n\n Init.emitDuePaid(_orderId,msgSender,orderMonthlyDue(_orderId,_duration));\n\n\n }\n\n\n\n\n\n function dueCheck(uint64 _orderId,address borrower,uint month) external returns(uint) {\n\n\n require (Init.friendlyaddress(msg.sender) && now >= matchOrderMap[_orderId].time + matchOrderMap[_orderId].duesPaid * 30 days);\n\n\n uint due = orderMonthlyDue(_orderId,1);\n\n\n EMM.mintECO(matchOrderMap[_orderId].supplier,due*(100-Init.rewardFee())/100);\n\n\n if(matchOrderMap[_orderId].duesPaid < month && !Init.isRegistrar(borrower) && !Init.isUserLocked(borrower)){\n\n\n Init.setUserLocked(borrower,true);\n\n\n orderExpired(_orderId);\n\n\n } else {\n\n\n Init.emitDuePaid(_orderId,borrower,orderMonthlyDue(_orderId,month+1));\n\n\n scheduleCheck(_orderId,borrower,month+1);\n\n\n }\n\n\n }\n\n\n\n\n\n function scheduleExpiry(uint64 _orderId) internal{\n\n\n uint time = matchOrderMap[_orderId].expiryDate - matchOrderMap[_orderId].time;\n\n\n bytes memory data = abi.encodeWithSelector(bytes4(keccak256('orderExpired(uint256)')),_orderId);\n\n\n uint callCost = 300000*1e9 + abacus.callFee();\n\n\n abacus.scheduleFunc{value:callCost}(address(this), time ,data , abacus.callFee() ,300000 , 1e9 );\n\n\n } \n\n\n \n\n\n function scheduleCheck(uint _orderId,address borrower,uint month) internal{\n\n\n bytes memory data = abi.encodeWithSelector(bytes4(keccak256('dueCheck(uint256,address,uint256)')),_orderId,borrower,month);\n\n\n uint callCost = 300000*1e9 + abacus.callFee();\n\n\n abacus.scheduleFunc{value:callCost}(address(this), 30 days ,data , abacus.callFee() ,300000 , 1e9 );\n\n\n } \n\n\n \n\n\n function cancelOrder(uint64 _orderId) external{\n\n\n require(Init.friendlyaddress(msg.sender));\n\n\n if(orderStatus[_orderId]==Status.OPENCREATOR) {\n\n\n EMM.releaseWrappedToken(openOrderMap[_orderId].creator,openOrderMap[_orderId].amount, openOrderMap[_orderId].wtoken);\n\n\n users[openOrderMap[_orderId].creator].deposits[openOrderMap[_orderId].wtoken] -=openOrderMap[_orderId].amount;\n\n\n users[openOrderMap[_orderId].creator].totalDeposit -= orderUSDValue[_orderId];\n\n\n for((uint i,uint j)=(0,0); i<users[openOrderMap[_orderId].creator].createdOrders.length; (i++,j++)) {\n\n\n if(users[openOrderMap[_orderId].creator].createdOrders[i] == _orderId) { --j; continue; }\n\n\n users[openOrderMap[_orderId].creator].createdOrders[j] = users[openOrderMap[_orderId].creator].createdOrders[i];\n\n\n }\n\n\n } else if(orderStatus[_orderId]==Status.OPENBORROW){\n\n\n users[openOrderMap[_orderId].creator].borrows[openOrderMap[_orderId].wtoken] -=openOrderMap[_orderId].amount;\n\n\n users[openOrderMap[_orderId].creator].totalBorrowed -= orderUSDValue[_orderId];\n\n\n for((uint i,uint j)=(0,0); i<users[openOrderMap[_orderId].creator].borrowedOrders.length; (i++,j++)) {\n\n\n if(users[openOrderMap[_orderId].creator].borrowedOrders[i] == _orderId) { continue; }\n\n\n users[openOrderMap[_orderId].creator].borrowedOrders[j] = users[openOrderMap[_orderId].creator].borrowedOrders[i];\n\n\n }\n\n\n }\n\n\n poolSorter(_orderId, openOrderMap[_orderId].wtoken,false);\n\n\n delete openOrderMap[_orderId];\n\n\n delete orderUSDValue[_orderId];\n\n\n orderStatus[_orderId] = Status.CLOSED;\n\n\n }\n\n\n \n\n\n /*==============Helpers============\n\n\n ---------------------------------*/ \n\n\n \n\n\n function USDValue(uint amount, string memory _token) public view returns (uint usdvalue) {\n\n\n usdvalue = amount*fetchTokenPrice(_token)/(10**8)/(10**uint(wERC20(EMM.getwTokenAddress(_token)).decimals()));\n\n\n }\n\n\n \n\n\n function orderMonthlyDue(uint64 _orderId, uint _duration) public view returns(uint due){\n\n\n orderStatus[_orderId] == Status.MATCHED ? due = USDValue (matchOrderMap[_orderId].amount, matchOrderMap[_orderId].wtoken) * matchOrderMap[_orderId].yield * _duration*30 days*fetchTokenPrice(Init.WRAP_ECO_SYMBOL())/3153600000/(10**8) : due = 0;\n\n\n }\n\n\n \n\n\n function fetchTokenPrice(string memory _tokenSymbol) public view returns(uint){ //Put any Token Wrapped or Direct\n\n\n\tuint response = uint(abacus.getJobResponse(EMM.getFetchId(_tokenSymbol))[0]);\n\n\n\treturn response > 0 ? response : 0;\n\n\n }\n\n\n \n\n\n /*function issueReward(address userAddress, string memory _tokenSymbol, uint time, uint tokenUsdValue) internal {\n\n\n uint reward = calculateECOEarning(tokenUsdValue, _tokenSymbol, time);\n\n\n EMM.mintECO(userAddress, reward);\n\n\n }*/\n\n\n \n\n\n function calculateECOEarning(uint usdvalue, string memory _tokenSymbol, uint time) private view returns (uint){\n\n\n uint _amount = usdvalue*(10**16)/fetchTokenPrice(Init.WRAP_ECO_SYMBOL());\n\n\n uint reward = (_amount * Init.slabRateDeposit(_tokenSymbol) * (now - time))/3153600000; //decimal from Abacus is setoff by decimal from Eco\n\n\n return reward;\n\n\n }\n\n\n \n\n\n function getECOEarnings(address userAddress) public view returns (uint){\n\n\n uint ecobalance;\n\n\n for(uint i=0; i<users[userAddress].myDeposits.length; i++) {\n\n\n ecobalance += calculateECOEarning(users[userAddress].myDeposits[i].usdvalue, users[userAddress].myDeposits[i].wtoken, users[userAddress].myDeposits[i].time);\n\n\n }\n\n\n\t for(uint i=0; i<users[userAddress].myBorrows.length; i++) {\n\n\n ecobalance -= calculateECOEarning(users[userAddress].myBorrows[i].usdvalue, users[userAddress].myBorrows[i].wtoken, users[userAddress].myBorrows[i].time);\n\n\n }\n\n\n return ecobalance - EMM.ecoWithdrawls(userAddress);\n\n\n }\n\n\n \n\n\n function _ordersub(uint amount,address userAddress,uint _duration,string memory _tokenSymbol) internal view returns (uint64, uint, uint){\n\n\n uint newAmount = amount - (amount*Init.tradeFee())/100;\n\n\n uint fee = (amount*Init.tradeFee())/100;\n\n\n uint64 _orderId = uint64(uint(keccak256(abi.encodePacked(userAddress,_tokenSymbol,_duration,now))));\n\n\n return (_orderId,newAmount,fee);\n\n\n }\n\n\n \n\n\n function getUserDepositsbyToken(address userAddress, string memory wtoken) public view returns(uint) {\n\n\n return users[userAddress].deposits[wtoken];\n\n\n }\n\n\n \n\n\n function getUserBorrowedOrderbyToken(address userAddress, string memory wtoken) public view returns(uint) {\n\n\n return users[userAddress].borrows[wtoken];\n\n\n }\n\n\n \n\n\n function getUserBorrowed(address userAddress) public view returns(uint) {\n\n\n return users[userAddress].totalBorrowed;\n\n\n }\n\n\n \n\n\n function getUserBorrowedOrder(address userAddress) public view returns (uint64 [] memory) {\n\n\n return users[userAddress].borrowedOrders;\n\n\n }\n\n\n \n\n\n function getUserDepositOrder(address userAddress) public view returns (uint64 [] memory) {\n\n\n return users[userAddress].createdOrders;\n\n\n }\n\n\n \n\n\n function getUserMatchOrder(address userAddress) public view returns (uint64 [] memory) {\n\n\n return users[userAddress].myOrders;\n\n\n }\n\n\n \n\n\n function getbuyPower(address userAddress) public view returns (uint){\n\n\n if(!Init.isRegistrar(userAddress)) { return (10**30); }\n\n\n if(Init.isUserLocked(userAddress)) { return 0; }\n\n\n uint buyPower;\n\n\n buyPower += users[userAddress].totalDeposit - ((users[userAddress].totalDeposit*Init.CDSpercent())/100);\n\n\n buyPower -= users[userAddress].totalBorrowed;\n\n\n return buyPower;\n\n\n }\n\n\n \n\n\n function getOrderIds(string memory wtoken) public view returns (uint64 [] memory orderIds) {\n\n\n return orderpool[wtoken];\n\n\n }\n\n\n}\n\n\n\n\n\ncontract Ecocelium is Initializable{\n\n\n\n\n\n address public owner;\n\n\n address payable EMMAddress;\n\n\n IAbacusOracle abacus;\n\n\n EcoMoneyManager EMM;\n\n\n EcoceliumDataManager EDM;\n\n\n EcoceliumInit Init;\n\n\n \n\n\n function initialize(address _owner,address payable EMMaddress,address payable AbacusAddress,address EDMaddress, address payable Initaddress)public payable initializer {\n\n\n owner = _owner;\n\n\n EMM = EcoMoneyManager(EMMaddress);\n\n\n EMMAddress = EMMaddress;\n\n\n abacus = IAbacusOracle(AbacusAddress);//0x323f81D9F57d2c3d5555b14d90651aCDc03F9d52\n\n\n EDM = EcoceliumDataManager(EDMaddress);\n\n\n Init = EcoceliumInit(Initaddress);\n\n\n }\n\n\n \n\n\n function changeOwner(address _owner) public{\n\n\n require(msg.sender==owner);\n\n\n owner = _owner;\n\n\n }\n\n\n \n\n\n func\n\npdateContracts() public{\n\n\n require(msg.sender==owner);\n\n\n EMM = EcoMoneyManager(Init.MONEYMANAGER());\n\n\n abacus = IAbacusOracle(Init.ABACUS());\n\n\n EDM = EcoceliumDataManager(Init.DATAMANAGER());\n\n\n }\n\n\n \n\n\n /*===========Main functions============\n\n\n -------------------------------------*/ \n\n\n\n\n\n function Deposit(string memory rtoken, uint _amount) external payable {\n\n\n address _msgSender = msg.sender;\n\n\n string memory wtoken = EMM.getWrapped(rtoken);\n\n\n _deposit(rtoken, _amount, _msgSender, wtoken);\n\n\n EDM.freePusher(_msgSender, wtoken, _amount, true);\n\n\n EMM.mintWrappedToken(_msgSender, _amount, wtoken);\n\n\n EMM.lockWrappedToken(_msgSender, _amount,wtoken);\n\n\n }\n\n\n \n\n\n function _deposit(string memory rtoken,uint _amount, address msgSender, string memory wtoken) internal {\n\n\n require(EMM.getwTokenAddress(wtoken) != address(0),\"not supported\");\n\n\n if(keccak256(abi.encodePacked(rtoken)) == keccak256(abi.encodePacked(Init.ETH_SYMBOL()))) { \n\n\n require(msg.value >= _amount);\n\n\n EMM.DepositManager{value:msg.value}(rtoken, _amount, msgSender);\n\n\n }else {\n\n\n EMM.DepositManager(rtoken, _amount, msgSender); }\n\n\n Init.emitSwap(msgSender,rtoken,wtoken,_amount);\n\n\n }\n\n\n \n\n\n function depositAndOrder(address userAddress,string memory rtoken ,uint _amount,uint _duration,uint _yield) external payable {\n\n\n require(msg.sender == userAddress);\n\n\n string memory wtoken = EMM.getWrapped(rtoken);\n\n\n _deposit(rtoken, _amount, userAddress, wtoken);\n\n\n EMM.mintWrappedToken(userAddress, _amount, wtoken);\n\n\n EMM.lockWrappedToken(userAddress, _amount,wtoken);\n\n\n EDM.newOrder(userAddress, EMM.getWrapped(rtoken), _amount, _duration, _yield, true);\n\n\n }\n\n\n \n\n\n function createOrder(address userAddress,string memory _tokenSymbol ,uint _amount,uint _duration,uint _yield) external payable {\n\n\n require(msg.sender == userAddress);\n\n\n string memory wtoken = EMM.getWrapped(_tokenSymbol);\n\n\n require(EDM.getUserDepositsbyToken(userAddress, wtoken) >= _amount, \"Insufficient Balance\"); \n\n\n uint ecoEarnings = EDM.freePopper(userAddress, wtoken , _amount, true);\n\n\n if(ecoEarnings > EMM.ecoWithdrawls(userAddress)) {\n\n\n \t\tecoEarnings-=EMM.ecoWithdrawls(userAddress);\n\n\n \t\tEMM.adjustEcoEarning(userAddress, EMM.ecoWithdrawls(userAddress));\n\n\n \t\tEMM.mintECO(userAddress, ecoEarnings); \n\n\n \t} else {\n\n\n \t\tEMM.adjustEcoEarning(userAddress, ecoEarnings);\t}\n\n\n EDM.newOrder(userAddress, wtoken, _amount, _duration, _yield, true); \n\n\n }\n\n\n \n\n\n function getAggEcoBalance(address userAddress) public view returns(uint) {\n\n\n return wERC20(EMM.getwTokenAddress(Init.WRAP_ECO_SYMBOL())).balanceOf(userAddress) + EDM.getECOEarnings(userAddress);\n\n\n }\n\n\n \n\n\n function borrowOrder(address userAddress, string memory rtoken, uint amount, uint duration, uint yield) public {//Rewrite this part\n\n\n require(isWithdrawEligible(userAddress, rtoken, amount));\n\n\n EDM.newOrder(msg.sender,rtoken, amount,duration,yield,false);\n\n\n }\n\n\n \n\n\n function payDueOrder(uint64 _orderId,uint _duration) external {\n\n\n EDM.payDue(_orderId,_duration,msg.sender);\n\n\n }\n\n\n \n\n\n function clearBorrow(string memory rtoken, uint _amount) external payable{\n\n\n address msgSender = msg.sender;\n\n\n string memory wtoken = EMM.getWrapped(rtoken);\n\n\n uint dues = EDM.freePopper(msgSender, wtoken, _amount, false);\n\n\n\t EMM.DepositManager(Init.ECO(), dues, msgSender);\n\n\n if(keccak256(abi.encodePacked(rtoken)) == keccak256(abi.encodePacked(Init.ETH_SYMBOL()))) { \n\n\n require(msg.value == _amount);\n\n\n EMM.DepositManager{value:_amount}(rtoken, _amount, msgSender);\n\n\n }else {\n\n\n EMM.DepositManager(rtoken, _amount, msgSender); }\n\n\n }\n\n\n \n\n\n function Borrow(address payable userAddress, uint _amount, string memory _tokenSymbol) public {\n\n\n require(userAddress == msg.sender);\n\n\n require(isWithdrawEligible(userAddress, _tokenSymbol, _amount));\n\n\n EDM.freePusher(msg.sender, EMM.getWrapped(_tokenSymbol), _amount,false);\n\n\n EMM.WithdrawManager(_tokenSymbol, _amount, userAddress);\n\n\n }\n\n\n \n\n\n function SwapWrapToWrap(string memory token1,string memory token2, uint token1amount) external returns(uint) {\n\n\n address msgSender = msg.sender;\n\n\n uint token2price = fetchTokenPrice(token2);\n\n\n uint token2amount = EDM.USDValue(token1amount,token1)*(100-Init.swapFee())*(10**uint(wERC20(EMM.getwTokenAddress(token2)).decimals()))*(10**8)/token2price/100;\n\n\n EMM.w2wswap(msgSender, token1, token1amount, token2amount, token2);\n\n\n uint ecoEarnings = EDM.freePopper(msgSender,token1,token1amount,true);\n\n\n\t EMM.mintECO(msgSender, ecoEarnings); \n\n\n\t Init.setOwnerFeeVault(token1, token1amount*Init.swapFee()/100);\n\n\n EDM.freePusher(msgSender, token2,token2amount,true);\n\n\n Init.emitSwap(msgSender,token1,token2,token2amount);\n\n\n return token2amount;\n\n\n }\n\n\n \n\n\n function cancelOrder(uint64 _orderId) public{\n\n\n (address creator,,,,) = EDM.openOrderMap(_orderId);\n\n\n require(msg.sender==creator);\n\n\n EDM.cancelOrder(_orderId);\n\n\n }\n\n\n \n\n\n receive() external payable { }\n\n\n\n\n\n /*==============Helpers============\n\n\n ---------------------------------*/ \n\n\n \n\n\n function orderMonthlyDue(uint64 _orderId,uint _duration) public view returns(uint){\n\n\n return EDM.orderMonthlyDue(_orderId,_duration);\n\n\n }\n\n\n \n\n\n function updateFees(uint _swapFee,uint _tradeFee,uint _rewardFee) public{\n\n\n require(msg.sender == owner);\n\n\n Init.updateFees(_swapFee,_tradeFee,_rewardFee);\n\n\n }\n\n\n \n\n\n function getOrderIds(string memory wtoken) public view returns(uint64 [] memory){\n\n\n return EDM.getOrderIds(wtoken);\n\n\n }\n\n\n \n\n\n function fetchTokenPrice(string memory _tokenSymbol) public view returns(uint){\n\n\n return EDM.fetchTokenPrice(_tokenSymbol);\n\n\n }\n\n\n \n\n\n function Withdraw(string memory to, uint _amount) external {\n\n\n address payable msgSender = msg.sender;\n\n\n string memory from = EMM.getWrapped(to);\n\n\n require(!Init.isUserLocked(msgSender), \"Your Address is Locked Pay Dues\");\n\n\n if(EDM.getUserBorrowed(msgSender) >0 ) { require(isWithdrawEligible(msgSender, to, _amount) , \"Not Eligible for Withdraw\"); }\n\n\n wERC20 wToken = wERC20(EMM.getwTokenAddress(to));\n\n\n uint amountLeft;\n\n\n uint availableBalance = wToken.balanceOf(msgSender) - EDM.getUserDepositsbyToken(msgSender, from) - EDM.getUserBorrowedOrderbyToken(msgSender, from);\n\n\n if(availableBalance >= _amount) {\n\n\n\t\t EMM.burnWrappedFrom(msgSender, _amount, from); \n\n\n\t\t EMM.WithdrawManager(to, _amount, msgSender);\n\n\n } else {\n\n\n if(keccak256(abi.encodePacked(to)) == keccak256(abi.encodePacked(Init.ECO()))) {\n\n\n require( wToken.balanceOf(msgSender) + EDM.getECOEarnings(msgSender) >= _amount,\"Insufficient Balance\");\n\n\n if(wToken.balanceOf(msgSender) >=_amount) { \n\n\n _withdraw(msgSender, from, _amount, to); } else {\n\n\n amountLeft = _amount - wToken.balanceOf(msgSender);\n\n\n if(wToken.balanceOf(msgSender) > 0){ _withdraw(msgSender, from, wToken.balanceOf(msgSender), to);\t}\n\n\n EMM.redeemEcoEarning(msgSender,amountLeft); }\n\n\n }\n\n\n else { require(wToken.balanceOf(msgSender)>=_amount,\"Insufficient balance\");\n\n\n _withdraw(msgSender, from, _amount, to);\n\n\n }\n\n\n }\n\n\n Init.emitSwap(msgSender,from,to,_amount);\n\n\n }\n\n\n \n\n\n function _withdraw(address payable msgSender, string memory from, uint amount, string memory to) internal {\n\n\n EMM.releaseWrappedToken(msgSender,amount, from);\n\n\n EMM.burnWrappedFrom(msgSender, amount, from);\n\n\n Init.setOwnerFeeVault(to,(amount*Init.rewardFee())/100);\n\n\n uint ecoEarnings = EDM.freePopper(msgSender,from,amount, true);\n\n\n \tif(ecoEarnings>0) {\n\n\n \t if(ecoEarnings > EMM.ecoWithdrawls(msgSender)) {\n\n\n \t\tecoEarnings-=EMM.ecoWithdrawls(msgSender);\n\n\n \t\tif(EMM.ecoWithdrawls(msgSender) > 0) { EMM.adjustEcoEarning(msgSender, EMM.ecoWithdrawls(msgSender)); }\n\n\n \t\tEMM.mintECO(msgSender, ecoEarnings); \n\n\n \t} else {\n\n\n \t\tEMM.adjustEcoEarning(msgSender, ecoEarnings);\t}\n\n\n \t}\n\n\n uint newAmount = amount - (amount*Init.rewardFee())/100;\n\n\n EMM.WithdrawManager(to,newAmount, msgSender);\n\n\n }\n\n\n \n\n\n function isWithdrawEligible(address userAddress, string memory to, uint amount) internal view returns (bool Eligible){\n\n\n return (EDM.getbuyPower(userAddress) > (amount*fetchTokenPrice(to)/(10**8)));\n\n\n } \n\n\n}\n\n\n\n\n\n \n\n\n\n\ncontract EcoceliumInit is Initializable {\n\n\n\n\n\n address payable owner;\n\n\n address payable public MONEYMANAGER;\n\n\n address payable public DATAMANAGER;\n\n\n address payable public ECOCELIUM;\n\n\n address payable public ABACUS;\n\n\n string public WRAP_ECO_SYMBOL;\n\n\n string public ECO;\n\n\n string public ETH_SYMBOL;\n\n\n string public WRAP_ETH_SYMBOL;\n\n\n uint public swapFee;\n\n\n uint public rewardFee;\n\n\n uint public tradeFee;\n\n\n uint public CDSpercent;\n\n\n string [] rtokenlist;\n\n\n string [] wtokenlist;\n\n\n mapping (string => uint) public rcurrencyID;\n\n\n mapping (string => uint) public wcurrencyID;\n\n\n mapping (address => bool) public isRegistrar;\n\n\n mapping (address => bool) public isUserLocked;\n\n\n mapping (string => uint ) public ownerFeeVault;\n\n\n mapping (string => uint) public slabRateDeposit;\n\n\n mapping (address => bool) public friendlyaddress;\n\n\n mapping (address => address) public SponsorAddress;\n\n\n mapping (address => uint) public usertreasuryearnings;\n\n\n \n\n\n event OrderCreated(\n\n\n address userAddress,\n\n\n uint duration,\n\n\n uint yield,\n\n\n uint amount,\n\n\n string token\n\n\n );\n\n\n \n\n\n event Swap(\n\n\n address userAddress,\n\n\n string from,\n\n\n string to,\n\n\n uint amount\n\n\n );\n\n\n \n\n\n event Borrowed(\n\n\n uint64 orderId,\n\n\n address borrower,\n\n\n uint amount,\n\n\n uint duration\n\n\n );\n\n\n \n\n\n event Deposit(\n\n\n address userAddress,\n\n\n string token,\n\n\n uint tokenAmount,\n\n\n uint collateralValue\n\n\n );\n\n\n \n\n\n event DuePaid(\n\n\n uint64 orderId,\n\n\n address borrower,\n\n\n uint amount\n\n\n );\n\n\n \n\n\n event WrapTokenCreated(\n\n\n address TokenAddress,\n\n\n string TokenName,\n\n\n string TokenSymbol,\n\n\n uint Decimals\n\n\n );\n\n\n \n\n\n receive() payable external { } \n\n\n \n\n\n function initializeAddress(address payable _owner) public initializer {\n\n\n friendlyaddress[_owner] = true;\n\n\n owner = _owner;\n\n\n }\n\n\n \n\n\n function addRealCurrency(string memory rtoken) public{\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n if(rcurrencyID[rtoken] == 0) {\n\n\n rtokenlist.push(rtoken);\n\n\n rcurrencyID[rtoken] = rtokenlist.length; }\n\n\n }\n\n\n \n\n\n function addWrapCurrency (string memory wtoken) public{\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n if(wcurrencyID[wtoken] == 0) {\n\n\n wtokenlist.push(wtoken);\n\n\n wcurrencyID[wtoken] = wtokenlist.length; }\n\n\n }\n\n\n \n\n\n function setSlabRate(string memory WToken, uint rate) public {\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n slabRateDeposit[WToken] = rate;\n\n\n }\n\n\n \n\n\n function setUserLocked(address userAddress, bool value) public {\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n isUserLocked[userAddress] = value;\n\n\n }\n\n\n \n\n\n function setFriendlyAddress(address Address) public {\n\n\n (msg.sender == owner,\"not owner\");\n\n\n friendlyaddress[Address] = true;\n\n\n }\n\n\n \n\n\n function addRegistrar(address _registrar) public{\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n isRegistrar[_registrar] = true;\n\n\n }\n\n\n \n\n\n function setOwnerFeeVault(string memory add,uint value) public {\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n ownerFeeVault[add] += value; \n\n\n }\n\n\n \n\n\n function emitOrderCreated(address userAddress, uint _duration, uint _yield, uint newAmount,string memory _tokenSymbol) public {\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n emit OrderCreated(userAddress,_duration,_yield,newAmount,_tokenSymbol); \n\n\n }\n\n\n \n\n\n function emitSwap(address msgSender, string memory from, string memory to,uint _amount) public {\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n emit Swap(msgSender,from,to,_amount);\n\n\n }\n\n\n \n\n\n function emitBorrowed(uint64 _orderId, address msgSender, uint _amount,uint _duration) public {\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n emit Borrowed(_orderId,msgSender,_amount,_duration);\n\n\n }\n\n\n \n\n\n function emitWrappedCreated(address tokenAddress,string memory name, string memory symbol,uint8 decimals) public {\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n emit WrapTokenCreated(tokenAddress,name,symbol,decimals); \n\n\n }\n\n\n \n\n\n function emitDeposit(address msgSender, string memory _tokenSymbol, uint amount, uint tokenUsdValue) public {\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n emit Deposit(msgSender,_tokenSymbol,amount,tokenUsdValue);\n\n\n }\n\n\n \n\n\n function emitDuePaid(uint64 _orderId, address msgSender, uint due) public {\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n emit DuePaid(_orderId,msgSender,due);\n\n\n }\n\n\n \n\n\n function setCONSTSYMBOLS(string[4] memory _symbolCONST) public {\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n WRAP_ECO_SYMBOL = _symbolCONST[0];\n\n\n ECO = _symbolCONST[1];\n\n\n ETH_SYMBOL = _symbolCONST[2];\n\n\n WRAP_ETH_SYMBOL = _symbolCONST[3];\n\n\n }\n\n\n \n\n\n function updateFees(uint _swapFee,uint _tradeFee,uint _rewardFee) public{\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n (swapFee,tradeFee,rewardFee) = (_swapFee,_tradeFee,_rewardFee);\n\n\n }\n\n\n \n\n\n function setCSDpercent(uint percent) public {\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n CDSpercent = percent;\n\n\n }\n\n\n \n\n\n function changeAbacusaddress(address payable Abacusaddress) public{\n\n\n require(msg.sender == owner,\"not owner\");\n\n\n ABACUS = Abacusaddress;\n\n\n } \n\n\n \n\n\n function changeEcoceliumaddress(address payable Ecocelium) public{\n\n\n require(msg.sender == owner,\"not owner\");\n\n\n ECOCELIUM = Ecocelium;\n\n\n } \n\n\n \n\n\n function changeDMaddress(address payable DMAddress) public{\n\n\n require(msg.sender == owner,\"not owner\");\n\n\n DATAMANAGER = DMAddress;\n\n\n }\n\n\n \n\n\n function changeMMaddress(address payable MMaddress) public{\n\n\n require(msg.sender == owner,\"not owner\");\n\n\n MONEYMANAGER = MMaddress;\n\n\n }\n\n\n \n\n\n function changeOwner(address payable _owner) public{\n\n\n require(msg.sender==owner);\n\n\n owner = _owner;\n\n\n }\n\n\n \n\n\n function setSponsor(address userAddress, address _sponsorAddress) external {\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n SponsorAddress[userAddress] = _sponsorAddress;\n\n\n }\n\n\n \n\n\n function updateTreasuryEarnings(address userAddress, uint _amount) public {\n\n\n require(friendlyaddress[msg.sender],\"Not Friendly Address\");\n\n\n usertreasuryearnings[userAddress] = _amount;\n\n\n }\n\n\n}\n\ncontract EcoMoneyManager is Initializable {\n\n\n \n\n\n\n\n\n \n\n\n \n\n\n EcoceliumInit Init;\n\n\n address public owner;\n\n\n address [] public TokenAddresses;\n\n\n address [] public wTokenAddresses;\n\n\n mapping (string => address) rTokens; \n\n\n mapping (string => string) rTokensTowToken;\n\n\n mapping (string => TokenConfig) wTokens;\n\n\n mapping (address => uint) public ecoWithdrawls;\n\n\n mapping (string => uint) public WGains;\n\n\n mapping (string => uint) public WLoss;\n\n\n \n\n\n receive() payable external { }\n\n\n \n\n\n struct TokenConfig{\n\n\n address tokenAddress;\n\n\n uint64 fetchId;\n\n\n }\n\n\n \n\n\n function initialize(address _owner, address payable _Init) public initializer{\n\n\n owner = _owner;\n\n\n Init = EcoceliumInit(_Init);\n\n\n }\n\n\n \n\n\n function updateAdminAddress(address adminAddress) public {\n\n\n require(msg.sender == owner);\n\n\n for(uint i = 0;i<wTokenAddresses.length;i++){\n\n\n wERC20(wTokenAddresses[i]).changeAdmin(adminAddress);\n\n\n }\n\n\n }\n\n\n \n\n\n function addTokenWithAddress(address tokenAddress) public {\n\n\n require(msg.sender == owner);\n\n\n ERC20Basic token = ERC20Basic(tokenAddress);\n\n\n require(getrTokenAddress(token.symbol())== address(0),\"token exist\");\n\n\n rTokens[token.symbol()] = tokenAddress; \n\n\n TokenAddresses.push(tokenAddress);\n\n\n } \n\n\n\n\n\n function createWrapToken(string memory name,string memory symbol,uint64 _fetchId, uint8 decimal, string memory wrapOf) public returns(address TokenAddress){\n\n\n require(msg.sender == owner);\n\n\n wERC20 token = new wERC20(name,symbol,decimal, address(this), address(this)); \n\n\n rTokensTowToken[wrapOf] = symbol;\n\n\n TokenAddresses.push(address(token));\n\n\n wTokenAddresses.push(address(token));\n\n\n wTokens[symbol] = TokenConfig({\n\n\n tokenAddress:address(token),\n\n\n fetchId : _fetchId\n\n\n });\n\n\n Init.emitWrappedCreated(address(token),name,symbol,token.decimals()); \n\n\n return address(token);\n\n\n } \n\n\n \n\n\n function changeOwner(address _owner) public{\n\n\n require(owner == msg.sender);\n\n\n owner =_owner;\n\n\n } \n\n\n function getwTokenAddress(string memory symbol) public view returns(address){\n\n\n return wTokens[symbol].tokenAddress;\n\n\n }\n\n\n \n\n\n function getFetchId(string memory symbol ) public view returns(uint64){\n\n\n if( wTokens[symbol].tokenAddress == address(0)) {\n\n\n symbol = rTokensTowToken[symbol];\n\n\n }\n\n\n return wTokens[symbol].fetchId;\n\n\n }\n\n\n \n\n\n function getrTokenAddress(string memory symbol) public view returns(address){\n\n\n return rTokens[symbol];\n\n\n }\n\n\n \n\n\n function getTokenAddresses() public view returns(address[] memory){\n\n\n return TokenAddresses;\n\n\n }\n\n\n \n\n\n function getWrapped(string memory symbol) public view returns(string memory){\n\n\n return rTokensTowToken[symbol];\n\n\n }\n\n\n \n\n\n function getTokenID(string memory symbol) public view returns(uint){\n\n\n for(uint i=0; i< TokenAddresses.length; i++) {\n\n\n if(TokenAddresses[i] == wTokens[symbol].tokenAddress) {\n\n\n return i;\n\n\n }\n\n\n }\n\n\n }\n\n\n \n\n\n function releaseWrappedToken (address _userAddress, uint amount, string memory WToken) public {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n wERC20(getwTokenAddress(WToken)).release(_userAddress,amount);\n\n\n }\n\n\n \n\n\n function mintWrappedToken (address _userAddress, uint amount, string memory WToken) public {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n wERC20(getwTokenAddress(WToken)).mint(_userAddress,amount);\n\n\n }\n\n\n \n\n\n function lockWrappedToken (address _userAddress, uint amount, string memory WToken) public {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n wERC20(getwTokenAddress(WToken)).lock(_userAddress,amount);\n\n\n }\n\n\n \n\n\n function burnWrappedFrom(address userAddress, uint amount, string memory WToken) public {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n wERC20(getwTokenAddress(WToken)).burnFrom(userAddress,amount);\n\n\n }\n\n\n \n\n\n function mintECO(address userAddress, uint amount) public {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n wERC20(getwTokenAddress(Init.WRAP_ECO_SYMBOL())).mint(userAddress,amount);\n\n\n }\n\n\n \n\n\n function lockECO(address userAddress, uint amount) public {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n wERC20(getwTokenAddress(Init.WRAP_ECO_SYMBOL())).lock(userAddress,amount);\n\n\n }\n\n\n \n\n\n function releaseECO(address userAddress, uint amount) public {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n wERC20(getwTokenAddress(Init.WRAP_ECO_SYMBOL())).release(userAddress,amount);\n\n\n }\n\n\n \n\n\n function burnECOFrom(address userAddress, uint amount) public {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n wERC20(getwTokenAddress(Init.WRAP_ECO_SYMBOL())).burnFrom(userAddress,amount);\n\n\n }\n\n\n \n\n\n function DepositManager(string memory _rtoken, uint amount, address userAddress) public payable {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n if(Init.rcurrencyID(_rtoken) == Init.rcurrencyID(Init.ETH_SYMBOL()))\n\n\n { require(msg.value >= amount,\"Invalid Amount\"); }\n\n\n else {ERC20Basic rtoken = ERC20Basic(getrTokenAddress(_rtoken));\n\n\n require(rtoken.allowance(userAddress, address(this)) >= amount,\"set allowance\");\n\n\n rtoken.transferFrom(userAddress,address(this),amount);}\n\n\n }\n\n\n \n\n\n function WithdrawManager(string memory _rtoken, uint amount, address payable userAddress) public {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n if(Init.rcurrencyID(_rtoken) == Init.rcurrencyID(Init.ETH_SYMBOL()))\n\n\n { userAddress.transfer(amount); }\n\n\n else {\n\n\n ERC20Basic rtoken = ERC20Basic(getrTokenAddress(_rtoken));\n\n\n rtoken.approve(userAddress, amount);\n\n\n rtoken.transferFrom(address(this),userAddress,amount);}\n\n\n }\n\n\n \n\n\n function redeemEcoEarning(address payable userAddress, uint amount) public {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n ecoWithdrawls[userAddress] = ecoWithdrawls[userAddress] + amount;\n\n\n WithdrawManager(Init.ECO(), amount, userAddress);\n\n\n }\n\n\n\n\n\n function adjustEcoEarning(address userAddress, uint amount) public {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n ecoWithdrawls[userAddress] = ecoWithdrawls[userAddress] - amount;\n\n\n }\n\n\n \n\n\n function updateFetchID (string memory wtoken, uint64 _fetchID) external {\n\n\n require(owner == msg.sender);\n\n\n wTokens[wtoken].fetchId = _fetchID;\n\n\n }\n\n\n \n\n\n function w2wswap (address msgSender, string memory token1, uint token1amount, uint token2amount, string memory token2) external {\n\n\n require(Init.friendlyaddress(msg.sender),\"Not Friendly Address\");\n\n\n releaseWrappedToken(msgSender, token1amount, token1);\n\n\n burnWrappedFrom(msgSender,token1amount,token1);\n\n\n WGains[token1]=token1amount;\n\n\n mintWrappedToken(msgSender,token2amount, token2);\n\n\n lockWrappedToken(msgSender, token2amount, token2);\n\n\n WLoss[token2]=token2amount;\n\n\n }\n\n\n \n\n\n}\n"},"bytecode":{"kind":"string","value":"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0":{"kind":"number","value":689,"string":"689"},"address":{"kind":"string","value":"0xf513d1ce6b67040f154ca46552f6e4e7ab25ed05"},"source_code":{"kind":"string","value":"pragma solidity 0.6.12;\n\nenum reservationstatus {CANCELLED, ACTIVATED, COMPLETED}\n\ninterface DaiErc20 {\n\n function transfer(address, uint) external returns (bool);\n\n function transferFrom(address,address,uint256) external returns (bool);\n\n function approve(address,uint256) external returns (bool);\n\n function balanceOf(address) external view returns (uint);\n\n function allowance(address, address) external view returns (uint);\n\n}\n\nlibrary mathlib\n\n{\n\n \n\n // --- Math functions as implemented in DAI ERC20 Token---\n\n function add(uint x, uint y) internal pure returns (uint z) {\n\n require((z = x + y) >= x);\n\n }\n\n \n\n function sub(uint x, uint y) internal pure returns (uint z) {\n\n require((z = x - y) <= x);\n\n }\n\n \n\n function mul(uint x, uint y) internal pure returns (uint z) {\n\n require(y == 0 || (z = x * y) / y == x);\n\n }\n\n\n\n function calculatereservationdays(uint rstart,uint rend) internal pure returns(uint)\n\n {\n\n /*\n\n\t 1)Calculates the length of stay between two dates.\n\n\t 2)For example the number of days between reservation start and end.\t\t\n\n 3)Days are rounded, so 5.6 days becomes 6 days. 0.5 days become 1 day.\n\n */\n\n \n\n\t require(rend > rstart,\"Reservation End has to be greater than Reservation Start\");\n\n\n\n uint diff = sub(rend,rstart);\n\n \n\n uint dlen = diff / 86400; //div is Math.floor()\n\n \n\n uint md = diff % 86400;\n\n \n\n return md >= 43200 ? add(dlen,1) : dlen;\n\n \n\n }\n\n \n\n}\n\ncontract owned\n\n{\n\n /*\n\n 1) Allows the manager to pause the main Factory contract\n\n 2) Only the Factory contract is owned.\n\n 3) The Manager has no control over the Reservation\n\n */\n\n \n\n address public manager;\n\n \n\n constructor() public \n\n\t{\n\n\t manager = msg.sender;\n\n\t}\n\n\n\n\n\n modifier onlyManager()\n\n {\n\n require(msg.sender == manager);\n\n _;\n\n }\n\n \n\n\n\n function setManager(address newmanager) external onlyManager\n\n {\n\n /*\n\n Allows the current manager to set a new manager\n\n */\n\n \n\n require(newmanager.balance > 0);\n\n manager = newmanager;\n\n }\n\n \n\n}\n\ncontract ReservationFactory is owned\n\n{\n\n /*\n\n 1) The Reservation Factory contract to create and manage reservations\n\n\t 2) Only the Reservation Factory is owned by the manager\n\n\t 3) The manager has no control over each reservation or the cumulative advance payment locked in the Factory contract\n\n */\n\n \n\n address constant private dai_ = 0x6B175474E89094C44Da98b954EedeAC495271d0F;\n\n DaiErc20 constant private daiToken = DaiErc20(dai_);\n\n\n\n //Reservation Fee in wad payed to the manager to create a reservation\n\n uint public reservationfee;\n\n \n\n uint constant private secondsinday = 86400;\n\n uint constant private secondsin21hrs = 75600;\n\n \n\n //Switch that controls whether the factory is active\n\n bool public factorycontractactive;\n\n \n\n uint private reservationid;\n\n \n\n uint constant private maxuint = 2**256-1;\n\n \n\n struct Reservation \n\n {\n\n address guest;\n\n address host;\n\n uint reservationstart;\n\n uint reservationend;\n\n uint dailyprice;\n\n uint advancepayment;\n\n reservationstatus rstatus;\n\n }\n\n \n\n mapping (bytes32 => Reservation) public Reservations;\n\n \n\n //Event for new Reservation\n\n event NewReservationEvent(bytes32 indexed rsvid, address indexed guest, address indexed host, uint rstart, uint rend, uint dprice, uint advpay, bytes8 rstartformat, bytes8 rendformat, uint eventtime);\n\n \n\n //Reservation Status Change Event\n\n event ReservationStatusEvent(bytes32 indexed rsvid, reservationstatus rstatus, uint rbalance, uint eventtime);\n\n\n\n constructor() public \n\n\t{\n\n\t reservationid =0;\n\n\t reservationfee = 1000000000000000000; //1 DAI\n\n\t\tfactorycontractactive = true;\n\n\t}\n\n\n\n\n\n function setReservationFee(uint newfee) external onlyManager\n\n {\n\n /*\n\n 1) Changes the Reservation fee that is paid to the manager\n\n 2) The Reservation fee at launch of contract is set to 1 DAI\n\n\t 3) The reservationfee is a public variable and can always queried\t\n\n */\n\n \n\n require(newfee > 0);\n\n \n\n reservationfee = newfee;\n\n }\n\n \n\n\n\n function setFactoryContractSwitch() external onlyManager\n\n {\n\n /*\n\n 1) Switch that controls whether the contract is active\n\n\t 2) If the contract is paused new reservations can not be created, but existing reservations can still be completed.\n\n */\n\n \n\n factorycontractactive = factorycontractactive == true ? false : true;\n\n }\n\n \n\n\n\n function createnewReservation(address host, uint reservationstart, uint reservationend, uint dailyprice, uint advancepayment , bytes8 rstartformat, bytes8 rendformat) external \n\n {\n\n /*\n\n Will Create a new reservation between guest and host\n\n */\n\n \n\n require(factorycontractactive, \"Factory Contract should be Active\");\n\n require(reservationid < maxuint, \"Maximum reservationid reached\");\n\n require(msg.sender != host,\"Host and Guest can not be same\");\n\n require(dailyprice > 0, \"Daily Price should be > 0\");\n\n \n\n require(now < mathlib.add(reservationstart,secondsin21hrs),\"Too late to start this reservation\");\n\n \n\n uint lengthofstay = mathlib.calculatereservationdays(reservationstart,reservationend);\n\n \n\n require(lengthofstay > 0,\"Length of Stay should be > 0\");\n\n \n\n uint totalreservationamount = mathlib.mul(dailyprice,lengthofstay);\n\n \n\n uint minadvpayment = lengthofstay > 5 ? mathlib.mul(dailyprice,2) : dailyprice;\n\n \n\n require(advancepayment >= minadvpayment && advancepayment <= totalreservationamount ,\"Advance Payment should be >= minadvpayment and <= reservation amount \");\n\n \n\n //Check daitoken allowance for Factory contract\n\n require(daiToken.allowance(msg.sender,address(this)) >= mathlib.add(advancepayment, reservationfee), \"daiToken allowance exceeded\");\n\n \n\n bytes32 rsvid = keccak256(abi.encodePacked(reservationid));\n\n \n\n Reservations[rsvid] = Reservation(msg.sender, host, reservationstart, reservationend, dailyprice, advancepayment, reservationstatus.ACTIVATED);\n\n \n\n reservationid = mathlib.add(reservationid,1);\n\n \n\n //Transfer the advance payment to this contract\n\n daiToken.transferFrom(msg.sender, address(this), advancepayment);\n\n \n\n //Transfer the reservation fee to factory manager\n\n daiToken.transferFrom(msg.sender, manager, reservationfee);\n\n\n\n emit NewReservationEvent(rsvid, msg.sender, host, reservationstart, reservationend, dailyprice, advancepayment, rstartformat, rendformat, now);\n\n \n\n }\n\n \n\n modifier onlyGuest(bytes32 rsvid)\n\n {\n\n require(msg.sender == Reservations[rsvid].guest, \"Only Guest\");\n\n _;\n\n }\n\n \n\n modifier onlyHost(bytes32 rsvid)\n\n {\n\n require(msg.sender == Reservations[rsvid].host, \"Only Host\");\n\n _;\n\n }\n\n \n\n function getReservationDetails(bytes32 rsvid) external view returns (reservationstatus, uint)\n\n {\n\n \t/*\n\n \t Will get the changing variables for each reservation based on reservation ID\t\n\n \t*/\n\n\n\n Reservation memory thisreservation = Reservations[rsvid];\n\n \n\n require(thisreservation.guest !=address(0),\"Reservation does not exist\");\n\n \n\n return(thisreservation.rstatus, thisreservation.advancepayment);\n\n }\n\n \n\n \n\n function setHostCancelsReservation(bytes32 rsvid) external onlyHost(rsvid)\n\n {\n\n /*\n\n 1) Allows the host to cancel the reservation upto 21 Hrs after reservation start if ACTIVATED\n\n 2) Guest gets a Full Refund Instantly, since the Host is cancelling\n\n */\n\n \n\n Reservation storage thisreservation = Reservations[rsvid];\n\n \n\n require(thisreservation.rstatus == reservationstatus.ACTIVATED,\"Reservation must be ACTIVATED\");\n\n \n\n uint reservationstart21Hrs = mathlib.add(thisreservation.reservationstart,secondsin21hrs);\n\n \n\n require(now < reservationstart21Hrs,\"Reservation Can be CANCELLED upto 21 Hrs after reservation start\");\n\n \n\n uint rsvbalance = thisreservation.advancepayment;\n\n \n\n thisreservation.advancepayment = 0;\n\n thisreservation.rstatus = reservationstatus.CANCELLED;\n\n \n\n\t //Guest is refunded the entire advance payment balance\n\n daiToken.transfer(thisreservation.guest, rsvbalance);\n\n \n\n emit ReservationStatusEvent(rsvid, thisreservation.rstatus, thisreservation.advancepayment, now);\n\n }\n\n \n\n function setGuestCancelReservation(bytes32 rsvid) external onlyGuest(rsvid)\n\n {\n\n /*\n\n 1) Guest can cancel the reservation upto 21 Hrs after reservation start if ACTIVATED\n\n 2) If length of stay is 5 days or less, cancel upto 3 days before reservation start, otherwise a cancellation fee of dailyprice is applied\n\n 3) If length of stay is greater than 5 days, cancel upto 5 days before reservation start, otherwise a cancellation fee of 2*dailyprice is applied\n\n */\n\n \n\n Reservation storage thisreservation = Reservations[rsvid];\n\n \n\n require(thisreservation.rstatus == reservationstatus.ACTIVATED,\"Reservation must be ACTIVATED\");\n\n \n\n uint reservationstart21Hrs = mathlib.add(thisreservation.reservationstart,secondsin21hrs);\n\n \n\n require(now < reservationstart21Hrs,\"Guest can only cancel upto 21 Hrs after reservation start\");\n\n \n\n uint lengthofstay = mathlib.calculatereservationdays(thisreservation.reservationstart,thisreservation.reservationend); \n\n \n\n uint cancellationperiod = lengthofstay > 5 ? 5 : 3;\n\n \n\n uint rsvbalance = thisreservation.advancepayment;\n\n \n\n thisreservation.advancepayment = 0;\n\n thisreservation.rstatus = reservationstatus.CANCELLED;\n\n \n\n if (now < mathlib.sub(thisreservation.reservationstart,mathlib.mul(cancellationperiod,secondsinday)))\n\n {\n\n daiToken.transfer(thisreservation.guest,rsvbalance);\n\n }\n\n else\n\n {\n\n uint cancellationfee = lengthofstay > 5 ? mathlib.mul(thisreservation.dailyprice,2) : thisreservation.dailyprice;\n\n \n\n uint guestdue = mathlib.sub(rsvbalance,cancellationfee);\n\n \n\n //Host gets compensated for cancellation \n\n daiToken.transfer(thisreservation.host,cancellationfee);\n\n \n\n //Guest gets refunded the remaining balance\n\n if (guestdue > 0)\n\n {\n\n daiToken.transfer(thisreservation.guest,guestdue);\n\n }\n\n }\n\n \n\n emit ReservationStatusEvent(rsvid, thisreservation.rstatus, thisreservation.advancepayment, now);\n\n }\n\n \n\n \n\n function setHostClaimsRent(bytes32 rsvid) external onlyHost(rsvid)\n\n {\n\n /*\n\n Host can claim the rent 21 Hrs after reservation start\n\n */\n\n \n\n Reservation storage thisreservation = Reservations[rsvid];\n\n \n\n require(thisreservation.rstatus == reservationstatus.ACTIVATED,\"Reservation must be ACTIVATED\");\n\n \n\n uint reservationstart21Hrs = mathlib.add(thisreservation.reservationstart,secondsin21hrs);\n\n \n\n require(now >= reservationstart21Hrs,\"Host can only claim the rent 21 Hrs after reservation start\");\n\n \n\n uint rsvbalance = thisreservation.advancepayment;\n\n \n\n thisreservation.advancepayment = 0;\n\n thisreservation.rstatus = reservationstatus.COMPLETED;\n\n \n\n //Host claims the entire advance payment balance\n\n daiToken.transfer(thisreservation.host,rsvbalance);\n\n \n\n emit ReservationStatusEvent(rsvid, thisreservation.rstatus, thisreservation.advancepayment, now);\n\n }\n\n \n\n \n\n function setHostRefundsPartRent(bytes32 rsvid, uint refundamount) external onlyHost(rsvid)\n\n {\n\n /*\n\n 1) Host can refund the Guest a part or full amount 21 Hrs after reservation start\n\n 2) The remaining balance if any will be transferred to the Host. \n\n */\n\n \n\n Reservation storage thisreservation = Reservations[rsvid];\n\n \n\n require(thisreservation.rstatus == reservationstatus.ACTIVATED, \"Reservation has to be ACTIVATED\");\n\n \n\n uint reservationstart21Hrs = mathlib.add(thisreservation.reservationstart,secondsin21hrs);\n\n \n\n require(now >= reservationstart21Hrs, \"Host can refund part of contract balance 21 Hrs after Reservation Start\");\n\n \n\n uint rsvbalance = thisreservation.advancepayment;\n\n \n\n require(refundamount > 0 && refundamount <= rsvbalance, \"Refund amount should be > 0 && <= rsvbalance\");\n\n \n\n uint hostdue = mathlib.sub(rsvbalance,refundamount);\n\n \n\n thisreservation.advancepayment = 0;\n\n thisreservation.rstatus = reservationstatus.COMPLETED;\n\n \n\n //The refund amount is transferred to the guest\n\n daiToken.transfer(thisreservation.guest,refundamount);\n\n \n\n //The remaining amount is transferred to the Host\n\n if (hostdue > 0)\n\n {\n\n daiToken.transfer(thisreservation.host,hostdue);\n\n }\n\n \n\n emit ReservationStatusEvent(rsvid, thisreservation.rstatus, thisreservation.advancepayment, now);\n\n }\n\n \n\n}\n"},"bytecode":{"kind":"string","value":"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true, \"error\": null, \"results\": {\"detectors\": [{\"check\": \"unchecked-transfer\", \"impact\": \"High\", \"confidence\": \"Medium\"}]}}"},"success":{"kind":"bool","value":true,"string":"true"},"error":{"kind":"null"},"results":{"kind":"string","value":"{'detectors': [{'check': 'unchecked-transfer', 'impact': 'High', 'confidence': 'Medium'}]}"},"input_ids":{"kind":"list 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0":{"kind":"number","value":690,"string":"690"},"address":{"kind":"string","value":"0xf567537ddb62Fa964Fb6d877738905789ab57Efd"},"source_code":{"kind":"string","value":"pragma solidity 0.6.12;\n\nabstract contract Context {\n\n\n function _msgSender() internal view virtual returns (address payable) {\n\n\n return msg.sender;\n\n\n }\n\n\n\n\n\n function _msgData() internal view virtual returns (bytes memory) {\n\n\n this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691\n\n\n return msg.data;\n\n\n }\n\n\n}\n\ninterface IERC20 {\n\n\n /**\n\n\n * @dev Returns the amount of tokens in existence.\n\n\n */\n\n\n function totalSupply() external view returns (uint256);\n\n\n\n\n\n /**\n\n\n * @dev Returns the amount of tokens owned by `account`.\n\n\n */\n\n\n function balanceOf(address account) external view returns (uint256);\n\n\n\n\n\n /**\n\n\n * @dev Moves `amount` tokens from the caller's account to `recipient`.\n\n\n *\n\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n\n *\n\n\n * Emits a {Transfer} event.\n\n\n */\n\n\n function transfer(address recipient, uint256 amount) external returns (bool);\n\n\n\n\n\n /**\n\n\n * @dev Returns the remaining number of tokens that `spender` will be\n\n\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n\n\n * zero by default.\n\n\n *\n\n\n * This value changes when {approve} or {transferFrom} are called.\n\n\n */\n\n\n function allowance(address owner, address spender) external view returns (uint256);\n\n\n\n\n\n /**\n\n\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n\n\n *\n\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n\n *\n\n\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n\n\n * that someone may use both the old and the new allowance by unfortunate\n\n\n * transaction ordering. One possible solution to mitigate this race\n\n\n * condition is to first reduce the spender's allowance to 0 and set the\n\n\n * desired value afterwards:\n\n\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n\n\n *\n\n\n * Emits an {Approval} event.\n\n\n */\n\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n\n\n\n\n /**\n\n\n * @dev Moves `amount` tokens from `sender` to `recipient` using the\n\n\n * allowance mechanism. `amount` is then deducted from the caller's\n\n\n * allowance.\n\n\n *\n\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n\n *\n\n\n * Emits a {Transfer} event.\n\n\n */\n\n\n function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);\n\n\n\n\n\n /**\n\n\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n\n\n * another (`to`).\n\n\n *\n\n\n * Note that `value` may be zero.\n\n\n */\n\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n\n\n\n\n /**\n\n\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n\n\n * a call to {approve}. `value` is the new allowance.\n\n\n */\n\n\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n\n}\n\nlibrary SafeMath {\n\n\n /**\n\n\n * @dev Returns the addition of two unsigned integers, reverting on\n\n\n * overflow.\n\n\n *\n\n\n * Counterpart to Solidity's `+` operator.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - Addition cannot overflow.\n\n\n */\n\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n\n\n uint256 c = a + b;\n\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n\n\n\n\n return c;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the subtraction of two unsigned integers, reverting on\n\n\n * overflow (when the result is negative).\n\n\n *\n\n\n * Counterpart to Solidity's `-` operator.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - Subtraction cannot overflow.\n\n\n */\n\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n\n\n return sub(a, b, \"SafeMath: subtraction overflow\");\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the subtraction of two unsigned integers, reverting with custom message on\n\n\n * overflow (when the result is negative).\n\n\n *\n\n\n * Counterpart to Solidity's `-` operator.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - Subtraction cannot overflow.\n\n\n */\n\n\n function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n\n require(b <= a, errorMessage);\n\n\n uint256 c = a - b;\n\n\n\n\n\n return c;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the multiplication of two unsigned integers, reverting on\n\n\n * overflow.\n\n\n *\n\n\n * Counterpart to Solidity's `*` operator.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - Multiplication cannot overflow.\n\n\n */\n\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n\n\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n\n\n // benefit is lost if 'b' is also tested.\n\n\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n\n\n if (a == 0) {\n\n\n return 0;\n\n\n }\n\n\n\n\n\n uint256 c = a * b;\n\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n\n\n\n\n return c;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the integer division of two unsigned integers. Reverts on\n\n\n * division by zero. The result is rounded towards zero.\n\n\n *\n\n\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n\n\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n\n\n * uses an invalid opcode to revert (consuming all remaining gas).\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - The divisor cannot be zero.\n\n\n */\n\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n\n\n return div(a, b, \"SafeMath: division by zero\");\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the integer division of two unsigned integers. Reverts with custom message on\n\n\n * division by zero. The result is rounded towards zero.\n\n\n *\n\n\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n\n\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n\n\n * uses an invalid opcode to revert (consuming all remaining gas).\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - The divisor cannot be zero.\n\n\n */\n\n\n function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n\n require(b > 0, errorMessage);\n\n\n uint256 c = a / b;\n\n\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n\n\n\n\n return c;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n\n\n * Reverts when dividing by zero.\n\n\n *\n\n\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n\n\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n\n\n * invalid opcode to revert (consuming all remaining gas).\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - The divisor cannot be zero.\n\n\n */\n\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n\n\n return mod(a, b, \"SafeMath: modulo by zero\");\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n\n\n * Reverts with custom message when dividing by zero.\n\n\n *\n\n\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n\n\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n\n\n * invalid opcode to revert (consuming all remaining gas).\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - The divisor cannot be zero.\n\n\n */\n\n\n function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n\n require(b != 0, errorMessage);\n\n\n return a % b;\n\n\n }\n\n\n}\n\ncontract ERC20 is Context, IERC20 {\n\n\n using SafeMath for uint256;\n\n\n\n\n\n mapping (address => uint256) private _balances;\n\n\n\n\n\n mapping (address => mapping (address => uint256)) private _allowances;\n\n\n\n\n\n uint256 private _totalSupply;\n\n\n\n\n\n string private _name;\n\n\n string private _symbol;\n\n\n uint8 private _decimals;\n\n\n\n\n\n /**\n\n\n * @dev Sets the values for {name} and {symbol}, initializes {decimals} with\n\n\n * a default value of 18.\n\n\n *\n\n\n * To select a different value for {decimals}, use {_setupDecimals}.\n\n\n *\n\n\n * All three of these values are immutable: they can only be set once during\n\n\n * construction.\n\n\n */\n\n\n constructor (string memory name, string memory symbol) public {\n\n\n _name = name;\n\n\n _symbol = symbol;\n\n\n _decimals = 18;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the name of the token.\n\n\n */\n\n\n function name() public view returns (string memory) {\n\n\n return _name;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the symbol of the token, usually a shorter version of the\n\n\n * name.\n\n\n */\n\n\n function symbol() public view returns (string memory) {\n\n\n return _symbol;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the number of decimals used to get its user representation.\n\n\n * For example, if `decimals` equals `2`, a balance of `505` tokens should\n\n\n * be displayed to a user as `5,05` (`505 / 10 ** 2`).\n\n\n *\n\n\n * Tokens usually opt for a value of 18, imitating the relationship between\n\n\n * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is\n\n\n * called.\n\n\n *\n\n\n * NOTE: This information is only used for _display_ purposes: it in\n\n\n * no way affects any of the arithmetic of the contract, including\n\n\n * {IERC20-balanceOf} and {IERC20-transfer}.\n\n\n */\n\n\n function decimals() public view returns (uint8) {\n\n\n return _decimals;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev See {IERC20-totalSupply}.\n\n\n */\n\n\n function totalSupply() public view override returns (uint256) {\n\n\n return _totalSupply;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev See {IERC20-balanceOf}.\n\n\n */\n\n\n function balanceOf(address account) public view override returns (uint256) {\n\n\n return _balances[account];\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev See {IERC20-transfer}.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `recipient` cannot be the zero address.\n\n\n * - the caller must have a balance of at least `amount`.\n\n\n */\n\n\n function transfer(address recipient, uint256 amount) public virtual override returns (bool) {\n\n\n _transfer(_msgSender(), recipient, amount);\n\n\n return true;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev See {IERC20-allowance}.\n\n\n */\n\n\n function allowance(address owner, address spender) public view virtual override returns (uint256) {\n\n\n return _allowances[owner][spender];\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev See {IERC20-approve}.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `spender` cannot be the zero address.\n\n\n */\n\n\n function approve(address spender, uint256 amount) public virtual override returns (bool) {\n\n\n _approve(_msgSender(), spender, amount);\n\n\n return true;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev See {IERC20-transferFrom}.\n\n\n *\n\n\n * Emits an {Approval} event indicating the updated allowance. This is not\n\n\n * required by the EIP. See the note at the beginning of {ERC20}.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `sender` and `recipient` cannot be the zero address.\n\n\n * - `sender` must have a balance of at least `amount`.\n\n\n * - the caller must have allowance for ``sender``'s tokens of at least\n\n\n * `amount`.\n\n\n */\n\n\n function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {\n\n\n _transfer(sender, recipient, amount);\n\n\n _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, \"ERC20: transfer amount exceeds allowance\"));\n\n\n return true;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Atomically increases the allowance granted to `spender` by the caller.\n\n\n *\n\n\n * This is an alternative to {approve} that can be used as a mitigation for\n\n\n * problems described in {IERC20-approve}.\n\n\n *\n\n\n * Emits an {Approval} event indicating the updated allowance.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `spender` cannot be the zero address.\n\n\n */\n\n\n function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {\n\n\n _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));\n\n\n return true;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Atomically decreases the allowance granted to `spender` by the caller.\n\n\n *\n\n\n * This is an alternative to {approve} that can be used as a mitigation for\n\n\n * problems described in {IERC20-approve}.\n\n\n *\n\n\n * Emits an {Approval} event indicating the updated allowance.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `spender` cannot be the zero address.\n\n\n * - `spender` must have allowance for the caller of at least\n\n\n * `subtractedValue`.\n\n\n */\n\n\n function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {\n\n\n _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, \"ERC20: decreased allowance below zero\"));\n\n\n return true;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Moves tokens `amount` from `sender` to `recipient`.\n\n\n *\n\n\n * This is internal function is equivalent to {transfer}, and can be used to\n\n\n * e.g. implement automatic token fees, slashing mechanisms, etc.\n\n\n *\n\n\n * Emits a {Transfer} event.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `sender` cannot be the zero address.\n\n\n * - `recipient` cannot be the zero address.\n\n\n * - `sender` must have a balance of at least `amount`.\n\n\n */\n\n\n function _transfer(address sender, address recipient, uint256 amount) internal virtual {\n\n\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n\n\n\n\n _beforeTokenTransfer(sender, recipient, amount);\n\n\n\n\n\n _balances[sender] = _balances[sender].sub(amount, \"ERC20: transfer amount exceeds balance\");\n\n\n _balances[recipient] = _balances[recipient].add(amount);\n\n\n emit Transfer(sender, recipient, amount);\n\n\n }\n\n\n\n\n\n /** @dev Creates `amount` tokens and assigns them to `account`, increasing\n\n\n * the total supply.\n\n\n *\n\n\n * Emits a {Transfer} event with `from` set to the zero address.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `to` cannot be the zero address.\n\n\n */\n\n\n function _mint(address account, uint256 amount) internal virtual {\n\n\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n\n\n\n\n _beforeTokenTransfer(address(0), account, amount);\n\n\n\n\n\n _totalSupply = _totalSupply.add(amount);\n\n\n _balances[account] = _balances[account].add(amount);\n\n\n emit Transfer(address(0), account, amount);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Destroys `amount` tokens from `account`, reducing the\n\n\n * total supply.\n\n\n *\n\n\n * Emits a {Transfer} event with `to` set to the zero address.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `account` cannot be the zero address.\n\n\n * - `account` must have at least `amount` tokens.\n\n\n */\n\n\n function _burn(address account, uint256 amount) internal virtual {\n\n\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n\n\n\n\n _beforeTokenTransfer(account, address(0), amount);\n\n\n\n\n\n _balances[account] = _balances[account].sub(amount, \"ERC20: burn amount exceeds balance\");\n\n\n _totalSupply = _totalSupply.sub(amount);\n\n\n emit Transfer(account, address(0), amount);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.\n\n\n *\n\n\n * This internal function is equivalent to `approve`, and can be used to\n\n\n * e.g. set automatic allowances for certain subsystems, etc.\n\n\n *\n\n\n * Emits an {Approval} event.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `owner` cannot be the zero address.\n\n\n * - `spender` cannot be the zero address.\n\n\n */\n\n\n function _approve(address owner, address spender, uint256 amount) internal virtual {\n\n\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\n\n\n\n _allowances[owner][spender] = amount;\n\n\n emit Approval(owner, spender, amount);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Sets {decimals} to a value other than the default one of 18.\n\n\n *\n\n\n * WARNING: This function should only be called from the constructor. Most\n\n\n * applications that interact with token contracts will not expect\n\n\n * {decimals} to ever change, and may work incorrectly if it does.\n\n\n */\n\n\n function _setupDecimals(uint8 decimals_) internal {\n\n\n _decimals = decimals_;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Hook that is called before any transfer of tokens. This includes\n\n\n * minting and burning.\n\n\n *\n\n\n * Calling conditions:\n\n\n *\n\n\n * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n\n\n * will be to transferred to `to`.\n\n\n * - when `from` is zero, `amount` tokens will be minted for `to`.\n\n\n * - when `to` is zero, `amount` of ``from``'s tokens will be burned.\n\n\n * - `from` and `to` are never both zero.\n\n\n *\n\n\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n\n\n */\n\n\n function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { }\n\n\n}\n\ncontract TFI is ERC20 {\n\n\n constructor (string memory name, string memory symbol) ERC20(name, symbol) public {\n\n\n _mint(msg.sender, 1000000000 * 10 ** uint(decimals()));\n\n\n 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0":{"kind":"number","value":691,"string":"691"},"address":{"kind":"string","value":"0xf56842Af3B56Fd72d17cB103f92d027bBa912e89"},"source_code":{"kind":"string","value":"pragma solidity 0.6.12;\n\nlibrary Address {\n\n /**\n\n * @dev Returns true if `account` is a contract.\n\n *\n\n * [IMPORTANT]\n\n * ====\n\n * It is unsafe to assume that an address for which this function returns\n\n * false is an externally-owned account (EOA) and not a contract.\n\n *\n\n * Among others, `isContract` will return false for the following\n\n * types of addresses:\n\n *\n\n * - an externally-owned account\n\n * - a contract in construction\n\n * - an address where a contract will be created\n\n * - an address where a contract lived, but was destroyed\n\n * ====\n\n */\n\n function isContract(address account) internal view returns (bool) {\n\n // This method relies in extcodesize, which returns 0 for contracts in\n\n // construction, since the code is only stored at the end of the\n\n // constructor execution.\n\n\n\n uint256 size;\n\n // solhint-disable-next-line no-inline-assembly\n\n assembly { size := extcodesize(account) }\n\n return size > 0;\n\n }\n\n\n\n /**\n\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n\n * `recipient`, forwarding all available gas and reverting on errors.\n\n *\n\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n\n * imposed by `transfer`, making them unable to receive funds via\n\n * `transfer`. {sendValue} removes this limitation.\n\n *\n\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n\n *\n\n * IMPORTANT: because control is transferred to `recipient`, care must be\n\n * taken to not create reentrancy vulnerabilities. Consider using\n\n * {ReentrancyGuard} or the\n\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n\n */\n\n function sendValue(address payable recipient, uint256 amount) internal {\n\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n\n\n // solhint-disable-next-line avoid-low-level-calls, avoid-call-value\n\n (bool success, ) = recipient.call{ value: amount }(\"\");\n\n require(success, \"Address: unable to send value, recipient may have reverted\");\n\n }\n\n\n\n /**\n\n * @dev Performs a Solidity function call using a low level `call`. A\n\n * plain`call` is an unsafe replacement for a function call: use this\n\n * function instead.\n\n *\n\n * If `target` reverts with a revert reason, it is bubbled up by this\n\n * function (like regular Solidity function calls).\n\n *\n\n * Returns the raw returned data. To convert to the expected return value,\n\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n\n *\n\n * Requirements:\n\n *\n\n * - `target` must be a contract.\n\n * - calling `target` with `data` must not revert.\n\n *\n\n * _Available since v3.1._\n\n */\n\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n\n return functionCall(target, data, \"Address: low-level call failed\");\n\n }\n\n\n\n /**\n\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n\n * `errorMessage` as a fallback revert reason when `target` reverts.\n\n *\n\n * _Available since v3.1._\n\n */\n\n function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {\n\n return _functionCallWithValue(target, data, 0, errorMessage);\n\n }\n\n\n\n /**\n\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n\n * but also transferring `value` wei to `target`.\n\n *\n\n * Requirements:\n\n *\n\n * - the calling contract must have an ETH balance of at least `value`.\n\n * - the called Solidity function must be `payable`.\n\n *\n\n * _Available since v3.1._\n\n */\n\n function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n\n }\n\n\n\n /**\n\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n\n *\n\n * _Available since v3.1._\n\n */\n\n function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {\n\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n\n return _functionCallWithValue(target, data, value, errorMessage);\n\n }\n\n\n\n function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {\n\n require(isContract(target), \"Address: call to non-contract\");\n\n\n\n // solhint-disable-next-line avoid-low-level-calls\n\n (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);\n\n if (success) {\n\n return returndata;\n\n } else {\n\n // Look for revert reason and bubble it up if present\n\n if (returndata.length > 0) {\n\n // The easiest way to bubble the revert reason is using memory via assembly\n\n\n\n // solhint-disable-next-line no-inline-assembly\n\n assembly {\n\n let returndata_size := mload(returndata)\n\n revert(add(32, returndata), returndata_size)\n\n }\n\n } else {\n\n revert(errorMessage);\n\n }\n\n }\n\n }\n\n}\n\nabstract contract Context {\n\n function _msgSender() internal view virtual returns (address payable) {\n\n return msg.sender;\n\n }\n\n\n\n function _msgData() internal view virtual returns (bytes memory) {\n\n this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691\n\n return msg.data;\n\n }\n\n}\n\ninterface IERC20 {\n\n /**\n\n * @dev Returns the amount of tokens in existence.\n\n */\n\n function totalSupply() external view returns (uint256);\n\n\n\n /**\n\n * @dev Returns the amount of tokens owned by `account`.\n\n */\n\n function balanceOf(address account) external view returns (uint256);\n\n\n\n /**\n\n * @dev Moves `amount` tokens from the caller's account to `recipient`.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * Emits a {Transfer} event.\n\n */\n\n function transfer(address recipient, uint256 amount) external returns (bool);\n\n\n\n /**\n\n * @dev Returns the remaining number of tokens that `spender` will be\n\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n\n * zero by default.\n\n *\n\n * This value changes when {approve} or {transferFrom} are called.\n\n */\n\n function allowance(address owner, address spender) external view returns (uint256);\n\n\n\n /**\n\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n\n * that someone may use both the old and the new allowance by unfortunate\n\n * transaction ordering. One possible solution to mitigate this race\n\n * condition is to first reduce the spender's allowance to 0 and set the\n\n * desired value afterwards:\n\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n\n *\n\n * Emits an {Approval} event.\n\n */\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n\n\n /**\n\n * @dev Moves `amount` tokens from `sender` to `recipient` using the\n\n * allowance mechanism. `amount` is then deducted from the caller's\n\n * allowance.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * Emits a {Transfer} event.\n\n */\n\n function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);\n\n\n\n /**\n\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n\n * another (`to`).\n\n *\n\n * Note that `value` may be zero.\n\n */\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n\n\n /**\n\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n\n * a call to {approve}. `value` is the new allowance.\n\n */\n\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n}\n\ncontract Ownable is Context {\n\n address private _owner;\n\n address private proposedOwner;\n\n\n\n event OwnershipTransferred(\n\n address indexed previousOwner,\n\n address indexed newOwner\n\n );\n\n\n\n /**\n\n * @dev Initializes the contract setting the deployer as the initial owner.\n\n */\n\n constructor() internal {\n\n address msgSender = _msgSender();\n\n _owner = msgSender;\n\n emit OwnershipTransferred(address(0), msgSender);\n\n }\n\n\n\n /**\n\n * @dev Returns the address of the current owner.\n\n */\n\n function owner() public view returns (address) {\n\n return _owner;\n\n }\n\n\n\n /**\n\n * @dev Throws if called by any account other than the owner.\n\n */\n\n modifier onlyOwner() {\n\n require(_owner == _msgSender(), \"Ownable: caller is not the owner\");\n\n _;\n\n }\n\n\n\n /**\n\n * @dev Leaves the contract without owner. It will not be possible to call\n\n * `onlyOwner` functions anymore. Can only be called by the current owner.\n\n *\n\n * NOTE: Renouncing ownership will leave the contract without an owner,\n\n * thereby removing any functionality that is only available to the owner.\n\n */\n\n function renounceOwnership() public virtual onlyOwner {\n\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n\n proposedOwner = address(0);\n\n }\n\n\n\n /**\n\n * @dev Proposes a new owner of the contract to a new account (`newOwner`).\n\n * Can only be called by the current owner.\n\n */\n\n function proposeOwner(address _proposedOwner) public onlyOwner {\n\n require(msg.sender != _proposedOwner, \"ERROR_CALLER_ALREADY_OWNER\");\n\n proposedOwner = _proposedOwner;\n\n }\n\n\n\n /**\n\n * @dev If the address has been proposed, it can accept the ownership,\n\n * Can only be called by the current proposed owner.\n\n */\n\n\n\n function claimOwnership() public {\n\n require(msg.sender == proposedOwner, \"ERROR_NOT_PROPOSED_OWNER\");\n\n emit OwnershipTransferred(_owner, proposedOwner);\n\n _owner = proposedOwner;\n\n proposedOwner = address(0);\n\n }\n\n}\n\nlibrary SafeMath {\n\n /**\n\n * @dev Returns the addition of two unsigned integers, reverting on\n\n * overflow.\n\n *\n\n * Counterpart to Solidity's `+` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Addition cannot overflow.\n\n */\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the subtraction of two unsigned integers, reverting on\n\n * overflow (when the result is negative).\n\n *\n\n * Counterpart to Solidity's `-` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Subtraction cannot overflow.\n\n */\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return sub(a, b, \"SafeMath: subtraction overflow\");\n\n }\n\n\n\n /**\n\n * @dev Returns the subtraction of two unsigned integers, reverting with custom message on\n\n * overflow (when the result is negative).\n\n *\n\n * Counterpart to Solidity's `-` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Subtraction cannot overflow.\n\n */\n\n function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the multiplication of two unsigned integers, reverting on\n\n * overflow.\n\n *\n\n * Counterpart to Solidity's `*` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Multiplication cannot overflow.\n\n */\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n\n // benefit is lost if 'b' is also tested.\n\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n\n if (a == 0) {\n\n return 0;\n\n }\n\n\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the integer division of two unsigned integers. Reverts on\n\n * division by zero. The result is rounded towards zero.\n\n *\n\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n\n * uses an invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return div(a, b, \"SafeMath: division by zero\");\n\n }\n\n\n\n /**\n\n * @dev Returns the integer division of two unsigned integers. Reverts with custom message on\n\n * division by zero. The result is rounded towards zero.\n\n *\n\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n\n * uses an invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n\n * Reverts when dividing by zero.\n\n *\n\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n\n * invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return mod(a, b, \"SafeMath: modulo by zero\");\n\n }\n\n\n\n /**\n\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n\n * Reverts with custom message when dividing by zero.\n\n *\n\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n\n * invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n require(b != 0, errorMessage);\n\n return a % b;\n\n }\n\n}\n\ncontract ERC20 is Context, IERC20 {\n\n using SafeMath for uint256;\n\n using Address for address;\n\n\n\n mapping (address => uint256) private _balances;\n\n\n\n mapping (address => mapping (address => uint256)) private _allowances;\n\n\n\n uint256 private _totalSupply;\n\n\n\n string private _name;\n\n string private _symbol;\n\n uint8 private _decimals;\n\n\n\n /**\n\n * @dev Sets the values for {name} and {symbol}, initializes {decimals} with\n\n * a default value of 18.\n\n *\n\n * To select a different value for {decimals}, use {_setupDecimals}.\n\n *\n\n * All three of these values are immutable: they can only be set once during\n\n * construction.\n\n */\n\n constructor (string memory name, string memory symbol) public {\n\n _name = name;\n\n _symbol = symbol;\n\n _decimals = 18;\n\n }\n\n\n\n /**\n\n * @dev Returns the name of the token.\n\n */\n\n function name() public view returns (string memory) {\n\n return _name;\n\n }\n\n\n\n /**\n\n * @dev Returns the symbol of the token, usually a shorter version of the\n\n * name.\n\n */\n\n function symbol() public view returns (string memory) {\n\n return _symbol;\n\n }\n\n\n\n /**\n\n * @dev Returns the number of decimals used to get its user representation.\n\n * For example, if `decimals` equals `2`, a balance of `505` tokens should\n\n * be displayed to a user as `5,05` (`505 / 10 ** 2`).\n\n *\n\n * Tokens usually opt for a value of 18, imitating the relationship between\n\n * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is\n\n * called.\n\n *\n\n * NOTE: This information is only used for _display_ purposes: it in\n\n * no way affects any of the arithmetic of the contract, including\n\n * {IERC20-balanceOf} and {IERC20-transfer}.\n\n */\n\n function decimals() public view returns (uint8) {\n\n return _decimals;\n\n }\n\n\n\n /**\n\n * @dev See {IERC20-totalSupply}.\n\n */\n\n function totalSupply() public view override returns (uint256) {\n\n return _totalSupply;\n\n }\n\n\n\n /**\n\n * @dev See {IERC20-balanceOf}.\n\n */\n\n function balanceOf(address account) public view override returns (uint256) {\n\n return _balances[account];\n\n }\n\n\n\n /**\n\n * @dev See {IERC20-transfer}.\n\n *\n\n * Requirements:\n\n *\n\n * - `recipient` cannot be the zero address.\n\n * - the caller must have a balance of at least `amount`.\n\n */\n\n function transfer(address recipient, uint256 amount) public virtual override returns (bool) {\n\n _transfer(_msgSender(), recipient, amount);\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev See {IERC20-allowance}.\n\n */\n\n function allowance(address owner, address spender) public view virtual override returns (uint256) {\n\n return _allowances[owner][spender];\n\n }\n\n\n\n /**\n\n * @dev See {IERC20-approve}.\n\n *\n\n * Requirements:\n\n *\n\n * - `spender` cannot be the zero address.\n\n */\n\n function approve(address spender, uint256 amount) public virtual override returns (bool) {\n\n _approve(_msgSender(), spender, amount);\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev See {IERC20-transferFrom}.\n\n *\n\n * Emits an {Approval} event indicating the updated allowance. This is not\n\n * required by the EIP. See the note at the beginning of {ERC20};\n\n *\n\n * Requirements:\n\n * - `sender` and `recipient` cannot be the zero address.\n\n * - `sender` must have a balance of at least `amount`.\n\n * - the caller must have allowance for ``sender``'s tokens of at least\n\n * `amount`.\n\n */\n\n function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {\n\n _transfer(sender, recipient, amount);\n\n _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, \"ERC20: transfer amount exceeds allowance\"));\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev Atomically increases the allowance granted to `spender` by the caller.\n\n *\n\n * This is an alternative to {approve} that can be used as a mitigation for\n\n * problems described in {IERC20-approve}.\n\n *\n\n * Emits an {Approval} event indicating the updated allowance.\n\n *\n\n * Requirements:\n\n *\n\n * - `spender` cannot be the zero address.\n\n */\n\n function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {\n\n _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev Atomically decreases the allowance granted to `spender` by the caller.\n\n *\n\n * This is an alternative to {approve} that can be used as a mitigation for\n\n * problems described in {IERC20-approve}.\n\n *\n\n * Emits an {Approval} event indicating the updated allowance.\n\n *\n\n * Requirements:\n\n *\n\n * - `spender` cannot be the zero address.\n\n * - `spender` must have allowance for the caller of at least\n\n * `subtractedValue`.\n\n */\n\n function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {\n\n _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, \"ERC20: decreased allowance below zero\"));\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev Moves tokens `amount` from `sender` to `recipient`.\n\n *\n\n * This is internal function is equivalent to {transfer}, and can be used to\n\n * e.g. implement automatic token fees, slashing mechanisms, etc.\n\n *\n\n * Emits a {Transfer} event.\n\n *\n\n * Requirements:\n\n *\n\n * - `sender` cannot be the zero address.\n\n * - `recipient` cannot be the zero address.\n\n * - `sender` must have a balance of at least `amount`.\n\n */\n\n function _transfer(address sender, address recipient, uint256 amount) internal virtual {\n\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n\n\n _beforeTokenTransfer(sender, recipient, amount);\n\n\n\n _balances[sender] = _balances[sender].sub(amount, \"ERC20: transfer amount exceeds balance\");\n\n _balances[recipient] = _balances[recipient].add(amount);\n\n emit Transfer(sender, recipient, amount);\n\n }\n\n\n\n /** @dev Creates `amount` tokens and assigns them to `account`, increasing\n\n * the total supply.\n\n *\n\n * Emits a {Transfer} event with `from` set to the zero address.\n\n *\n\n * Requirements\n\n *\n\n * - `to` cannot be the zero address.\n\n */\n\n function _mint(address account, uint256 amount) internal virtual {\n\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n\n\n _beforeTokenTransfer(address(0), account, amount);\n\n\n\n _totalSupply = _totalSupply.add(amount);\n\n _balances[account] = _balances[account].add(amount);\n\n emit Transfer(address(0), account, amount);\n\n }\n\n\n\n /**\n\n * @dev Destroys `amount` tokens from `account`, reducing the\n\n * total supply.\n\n *\n\n * Emits a {Transfer} event with `to` set to the zero address.\n\n *\n\n * Requirements\n\n *\n\n * - `account` cannot be the zero address.\n\n * - `account` must have at least `amount` tokens.\n\n */\n\n function _burn(address account, uint256 amount) internal virtual {\n\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n\n\n _beforeTokenTransfer(account, address(0), amount);\n\n\n\n _balances[account] = _balances[account].sub(amount, \"ERC20: burn amount exceeds balance\");\n\n _totalSupply = _totalSupply.sub(amount);\n\n emit Transfer(account, address(0), amount);\n\n }\n\n\n\n /**\n\n * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.\n\n *\n\n * This internal function is equivalent to `approve`, and can be used to\n\n * e.g. set automatic allowances for certain subsystems, etc.\n\n *\n\n * Emits an {Approval} event.\n\n *\n\n * Requirements:\n\n *\n\n * - `owner` cannot be the zero address.\n\n * - `spender` cannot be the zero address.\n\n */\n\n function _approve(address owner, address spender, uint256 amount) internal virtual {\n\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\n\n _allowances[owner][spender] = amount;\n\n emit Approval(owner, spender, amount);\n\n }\n\n\n\n /**\n\n * @dev Sets {decimals} to a value other than the default one of 18.\n\n *\n\n * WARNING: This function should only be called from the constructor. Most\n\n * applications that interact with token contracts will not expect\n\n * {decimals} to ever change, and may work incorrectly if it does.\n\n */\n\n function _setupDecimals(uint8 decimals_) internal {\n\n _decimals = decimals_;\n\n }\n\n\n\n /**\n\n * @dev Hook that is called before any transfer of tokens. This includes\n\n * minting and burning.\n\n *\n\n * Calling conditions:\n\n *\n\n * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n\n * will be to transferred to `to`.\n\n * - when `from` is zero, `amount` tokens will be minted for `to`.\n\n * - when `to` is zero, `amount` of ``from``'s tokens will be burned.\n\n * - `from` and `to` are never both zero.\n\n *\n\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n\n */\n\n function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { }\n\n}\n\ncontract BambooToken is ERC20(\"BambooDeFi\", \"BAMBOO\"), Ownable {\n\n using SafeMath for uint256;\n\n\n\n /// @dev A record of each accounts delegate\n\n mapping(address => address) internal _delegates;\n\n\n\n /// @notice A checkpoint for marking number of votes from a given block\n\n struct Checkpoint {\n\n uint256 fromBlock;\n\n uint256 votes;\n\n }\n\n\n\n /// @notice A record of votes checkpoints for each account, by index\n\n mapping(address => mapping(uint32 => Checkpoint)) public checkpoints;\n\n\n\n /// @notice The number of checkpoints for each account\n\n mapping(address => uint32) public numCheckpoints;\n\n\n\n /// @notice The EIP-712 typehash for the contract's domain\n\n bytes32 public constant DOMAIN_TYPEHASH = keccak256(\n\n \"EIP712Domain(string name,uint256 chainId,address verifyingContract)\"\n\n );\n\n\n\n /// @notice The EIP-712 typehash for the delegation struct used by the contract\n\n bytes32 public constant DELEGATION_TYPEHASH = keccak256(\n\n \"Delegation(address delegatee,uint256 nonce,uint256 expiry)\"\n\n );\n\n\n\n /// @notice A record of states for signing / validating signatures\n\n mapping(address => uint256) public nonces;\n\n\n\n /// @notice An event thats emitted when an account changes its delegate\n\n event DelegateChanged(\n\n address indexed delegator,\n\n address indexed fromDelegate,\n\n address indexed toDelegate\n\n );\n\n\n\n /// @notice An event thats emitted when a delegate account's vote balance changes\n\n event DelegateVotesChanged(\n\n address indexed delegate,\n\n uint256 previousBalance,\n\n uint256 newBalance\n\n );\n\n\n\n event Minted(\n\n address indexed minter,\n\n address indexed receiver,\n\n uint256 mintAmount\n\n );\n\n event Burned(address indexed burner, uint256 burnAmount);\n\n\n\n function mint(address _to, uint256 _amount) public onlyOwner {\n\n _mint(_to, _amount);\n\n emit Minted(owner(), _to, _amount);\n\n }\n\n\n\n function burn(uint256 _amount) public {\n\n _burn(msg.sender, _amount);\n\n emit Burned(msg.sender, _amount);\n\n }\n\n\n\n /**\n\n * @notice Delegate votes from `msg.sender` to `delegatee`\n\n * @param delegatee The address to delegate votes to\n\n */\n\n function delegate(address delegatee) external {\n\n return _delegate(msg.sender, delegatee);\n\n }\n\n\n\n /**\n\n * @notice Delegates votes from signatory to `delegatee`\n\n * @param delegatee The address to delegate votes to\n\n * @param nonce The contract state required to match the signature\n\n * @param expiry The time at which to expire the signature\n\n * @param v The recovery byte of the signature\n\n * @param r Half of the ECDSA signature pair\n\n * @param s Half of the ECDSA signature pair\n\n */\n\n function delegateBySig(\n\n address delegatee,\n\n uint256 nonce,\n\n uint256 expiry,\n\n uint8 v,\n\n bytes32 r,\n\n bytes32 s\n\n ) external {\n\n bytes32 domainSeparator = keccak256(\n\n abi.encode(\n\n DOMAIN_TYPEHASH,\n\n keccak256(bytes(name())),\n\n getChainId(),\n\n address(this)\n\n )\n\n );\n\n\n\n bytes32 structHash = keccak256(\n\n abi.encode(DELEGATION_TYPEHASH, delegatee, nonce, expiry)\n\n );\n\n\n\n bytes32 digest = keccak256(\n\n abi.encodePacked(\"\\x19\\x01\", domainSeparator, structHash)\n\n );\n\n\n\n address signatory = ecrecover(digest, v, r, s);\n\n require(\n\n signatory != address(0),\n\n \"BAMBOO::delegateBySig: invalid signature\"\n\n );\n\n require(\n\n nonce == nonces[signatory]++,\n\n \"BAMBOO::delegateBySig: invalid nonce\"\n\n );\n\n require(now <= expiry, \"BAMBOO::delegateBySig: signature expired\");\n\n return _delegate(signatory, delegatee);\n\n }\n\n\n\n /**\n\n * @notice Delegate votes from `msg.sender` to `delegatee`\n\n * @param delegator The address to get delegatee for\n\n */\n\n function delegates(address delegator) external view returns (address) {\n\n return _delegates[delegator];\n\n }\n\n\n\n /**\n\n * @notice Gets the current votes balance for `account`\n\n * @param account The address to get votes balance\n\n * @return The number of current votes for `account`\n\n */\n\n function getCurrentVotes(address account) external view returns (uint256) {\n\n uint32 nCheckpoints = numCheckpoints[account];\n\n return\n\n nCheckpoints > 0 ? checkpoints[account][nCheckpoints - 1].votes : 0;\n\n }\n\n\n\n /**\n\n * @notice Determine the prior number of votes for an account as of a block number\n\n * @dev Block number must be a finalized block or else this function will revert to prevent misinformation.\n\n * @param account The address of the account to check\n\n * @param blockNumber The block number to get the vote balance at\n\n * @return The number of votes the account had as of the given block\n\n */\n\n function getPriorVotes(address account, uint256 blockNumber)\n\n external\n\n view\n\n returns (uint256)\n\n {\n\n require(\n\n blockNumber < block.number,\n\n \"BAMBOO::getPriorVotes: not yet determined\"\n\n );\n\n\n\n uint32 nCheckpoints = numCheckpoints[account];\n\n if (nCheckpoints == 0) {\n\n return 0;\n\n }\n\n\n\n // First check most recent balance\n\n if (checkpoints[account][nCheckpoints - 1].fromBlock <= blockNumber) {\n\n return checkpoints[account][nCheckpoints - 1].votes;\n\n }\n\n\n\n // Next check implicit zero balance\n\n if (checkpoints[account][0].fromBlock > blockNumber) {\n\n return 0;\n\n }\n\n\n\n uint32 lower = 0;\n\n uint32 upper = nCheckpoints - 1;\n\n while (upper > lower) {\n\n uint32 center = upper - (upper - lower) / 2; // ceil, avoiding overflow\n\n Checkpoint memory cp = checkpoints[account][center];\n\n if (cp.fromBlock == blockNumber) {\n\n return cp.votes;\n\n } else if (cp.fromBlock < blockNumber) {\n\n lower = center;\n\n } else {\n\n upper = center - 1;\n\n }\n\n }\n\n return checkpoints[account][lower].votes;\n\n }\n\n\n\n function _delegate(address delegator, address delegatee) internal {\n\n address currentDelegate = _delegates[delegator];\n\n uint256 delegatorBalance = balanceOf(delegator); // balance of underlying BAMBOOs (not scaled);\n\n _delegates[delegator] = delegatee;\n\n\n\n emit DelegateChanged(delegator, currentDelegate, delegatee);\n\n\n\n _moveDelegates(currentDelegate, delegatee, delegatorBalance);\n\n }\n\n\n\n function _moveDelegates(\n\n address srcRep,\n\n address dstRep,\n\n uint256 amount\n\n ) internal {\n\n if (srcRep != dstRep && amount > 0) {\n\n if (srcRep != address(0)) {\n\n // decrease old representative\n\n uint32 srcRepNum = numCheckpoints[srcRep];\n\n uint256 srcRepOld = srcRepNum > 0\n\n ? checkpoints[srcRep][srcRepNum - 1].votes\n\n : 0;\n\n uint256 srcRepNew = srcRepOld.sub(amount);\n\n _writeCheckpoint(srcRep, srcRepNum, srcRepOld, srcRepNew);\n\n }\n\n\n\n if (dstRep != address(0)) {\n\n // increase new representative\n\n uint32 dstRepNum = numCheckpoints[dstRep];\n\n uint256 dstRepOld = dstRepNum > 0\n\n ? checkpoints[dstRep][dstRepNum - 1].votes\n\n : 0;\n\n uint256 dstRepNew = dstRepOld.add(amount);\n\n _writeCheckpoint(dstRep, dstRepNum, dstRepOld, dstRepNew);\n\n }\n\n }\n\n }\n\n\n\n function _writeCheckpoint(\n\n address delegatee,\n\n uint32 nCheckpoints,\n\n uint256 oldVotes,\n\n uint256 newVotes\n\n ) internal {\n\n uint256 blockNumber = block.number;\n\n\n\n if (\n\n nCheckpoints > 0 &&\n\n checkpoints[delegatee][nCheckpoints - 1].fromBlock == blockNumber\n\n ) {\n\n checkpoints[delegatee][nCheckpoints - 1].votes = newVotes;\n\n } else {\n\n checkpoints[delegatee][nCheckpoints] = Checkpoint(\n\n blockNumber,\n\n newVotes\n\n );\n\n numCheckpoints[delegatee] = nCheckpoints + 1;\n\n }\n\n\n\n emit DelegateVotesChanged(delegatee, oldVotes, newVotes);\n\n }\n\n\n\n function getChainId() internal pure returns (uint256) {\n\n uint256 chainId;\n\n assembly {\n\n chainId := chainid()\n\n }\n\n return chainId;\n\n }\n\n\n\n function _beforeTokenTransfer(\n\n address from,\n\n address to,\n\n uint256 amount\n\n ) internal virtual override {\n\n _moveDelegates(_delegates[from], _delegates[to], amount);\n\n 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0":{"kind":"number","value":692,"string":"692"},"address":{"kind":"string","value":"0xf5851d159fd0b8c78bb91c705940910450ada637"},"source_code":{"kind":"string","value":"pragma solidity 0.6.12;\n\ninterface IERC20 {\n\n /**\n\n * @dev Returns the amount of tokens in existence.\n\n */\n\n function totalSupply() external view returns (uint256);\n\n\n\n /**\n\n * @dev Returns the amount of tokens owned by `account`.\n\n */\n\n function balanceOf(address account) external view returns (uint256);\n\n\n\n /**\n\n * @dev Moves `amount` tokens from the caller's account to `recipient`.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * Emits a {Transfer} event.\n\n */\n\n function transfer(address recipient, uint256 amount) external returns (bool);\n\n\n\n /**\n\n * @dev Returns the remaining number of tokens that `spender` will be\n\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n\n * zero by default.\n\n *\n\n * This value changes when {approve} or {transferFrom} are called.\n\n */\n\n function allowance(address owner, address spender) external view returns (uint256);\n\n\n\n /**\n\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n\n * that someone may use both the old and the new allowance by unfortunate\n\n * transaction ordering. One possible solution to mitigate this race\n\n * condition is to first reduce the spender's allowance to 0 and set the\n\n * desired value afterwards:\n\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n\n *\n\n * Emits an {Approval} event.\n\n */\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n\n\n /**\n\n * @dev Moves `amount` tokens from `sender` to `recipient` using the\n\n * allowance mechanism. `amount` is then deducted from the caller's\n\n * allowance.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * Emits a {Transfer} event.\n\n */\n\n function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);\n\n\n\n /**\n\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n\n * another (`to`).\n\n *\n\n * Note that `value` may be zero.\n\n */\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n\n\n /**\n\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n\n * a call to {approve}. `value` is the new allowance.\n\n */\n\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n}\n\nlibrary SafeMath {\n\n /**\n\n * @dev Returns the addition of two unsigned integers, reverting on\n\n * overflow.\n\n *\n\n * Counterpart to Solidity's `+` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Addition cannot overflow.\n\n */\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the subtraction of two unsigned integers, reverting on\n\n * overflow (when the result is negative).\n\n *\n\n * Counterpart to Solidity's `-` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Subtraction cannot overflow.\n\n */\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return sub(a, b, \"SafeMath: subtraction overflow\");\n\n }\n\n\n\n /**\n\n * @dev Returns the subtraction of two unsigned integers, reverting with custom message on\n\n * overflow (when the result is negative).\n\n *\n\n * Counterpart to Solidity's `-` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Subtraction cannot overflow.\n\n */\n\n function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the multiplication of two unsigned integers, reverting on\n\n * overflow.\n\n *\n\n * Counterpart to Solidity's `*` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Multiplication cannot overflow.\n\n */\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n\n // benefit is lost if 'b' is also tested.\n\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n\n if (a == 0) {\n\n return 0;\n\n }\n\n\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the integer division of two unsigned integers. Reverts on\n\n * division by zero. The result is rounded towards zero.\n\n *\n\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n\n * uses an invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return div(a, b, \"SafeMath: division by zero\");\n\n }\n\n\n\n /**\n\n * @dev Returns the integer division of two unsigned integers. Reverts with custom message on\n\n * division by zero. The result is rounded towards zero.\n\n *\n\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n\n * uses an invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n\n * Reverts when dividing by zero.\n\n *\n\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n\n * invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return mod(a, b, \"SafeMath: modulo by zero\");\n\n }\n\n\n\n /**\n\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n\n * Reverts with custom message when dividing by zero.\n\n *\n\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n\n * invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n require(b != 0, errorMessage);\n\n return a % b;\n\n }\n\n}\n\ninterface sbControllerInterface {\n\n function requestRewards(address miner, uint256 amount) external;\n\n\n\n function isValuePoolAccepted(address valuePool) external view returns (bool);\n\n\n\n function getValuePoolRewards(address valuePool, uint256 day) external view returns (uint256);\n\n\n\n function getValuePoolMiningFee(address valuePool) external returns (uint256, uint256);\n\n\n\n function getValuePoolUnminingFee(address valuePool) external returns (uint256, uint256);\n\n\n\n function getValuePoolClaimingFee(address valuePool) external returns (uint256, uint256);\n\n\n\n function isServicePoolAccepted(address servicePool) external view returns (bool);\n\n\n\n function getServicePoolRewards(address servicePool, uint256 day) external view returns (uint256);\n\n\n\n function getServicePoolClaimingFee(address servicePool) external returns (uint256, uint256);\n\n\n\n function getServicePoolRequestFeeInWei(address servicePool) external returns (uint256);\n\n\n\n function getVoteForServicePoolsCount() external view returns (uint256);\n\n\n\n function getVoteForServicesCount() external view returns (uint256);\n\n\n\n function getVoteCastersRewards(uint256 dayNumber) external view returns (uint256);\n\n\n\n function getVoteReceiversRewards(uint256 dayNumber) external view returns (uint256);\n\n\n\n function getMinerMinMineDays() external view returns (uint256);\n\n\n\n function getServiceMinMineDays() external view returns (uint256);\n\n\n\n function getMinerMinMineAmountInWei() external view returns (uint256);\n\n\n\n function getServiceMinMineAmountInWei() external view returns (uint256);\n\n\n\n function getValuePoolVestingDays(address valuePool) external view returns (uint256);\n\n\n\n function getServicePoolVestingDays(address poservicePoolol) external view returns (uint256);\n\n\n\n function getVoteCasterVestingDays() external view returns (uint256);\n\n\n\n function getVoteReceiverVestingDays() external view returns (uint256);\n\n}\n\ninterface sbEthFeePoolInterface {\n\n function deposit() external payable;\n\n}\n\ncontract sbStrongBasicValuePool {\n\n using SafeMath for uint256;\n\n\n\n bool public initDone;\n\n address public admin;\n\n address public pendingAdmin;\n\n address public superAdmin;\n\n address public pendingSuperAdmin;\n\n\n\n sbEthFeePoolInterface public sbEthFeePool;\n\n sbControllerInterface public sbController;\n\n IERC20 public token;\n\n\n\n mapping(address => uint256[]) public minerMineDays;\n\n mapping(address => uint256[]) public minerMineAmounts;\n\n mapping(address => uint256[]) public minerMineMineSeconds;\n\n\n\n uint256[] public mineDays;\n\n uint256[] public mineAmounts;\n\n uint256[] public mineMineSeconds;\n\n\n\n mapping(address => uint256) public minerDayLastClaimedFor;\n\n\n\n mapping(address => bool) public whitelist;\n\n mapping(address => uint256) public whitelistAmount;\n\n bool public whitelistActive;\n\n\n\n function init(\n\n address sbEthFeePoolAddress,\n\n address sbControllerAddress,\n\n address tokenAddress,\n\n address adminAddress,\n\n address superAdminAddress\n\n ) public {\n\n require(!initDone, \"init done\");\n\n sbEthFeePool = sbEthFeePoolInterface(sbEthFeePoolAddress);\n\n sbController = sbControllerInterface(sbControllerAddress);\n\n token = IERC20(tokenAddress);\n\n admin = adminAddress;\n\n superAdmin = superAdminAddress;\n\n initDone = true;\n\n }\n\n\n\n // ADMIN\n\n // *************************************************************************************\n\n function setPendingAdmin(address newPendingAdmin) public {\n\n require(msg.sender == admin, \"not admin\");\n\n pendingAdmin = newPendingAdmin;\n\n }\n\n\n\n function acceptAdmin() public {\n\n require(\n\n msg.sender == pendingAdmin && msg.sender != address(0),\n\n \"not pendingAdmin\"\n\n );\n\n admin = pendingAdmin;\n\n pendingAdmin = address(0);\n\n }\n\n\n\n function setPendingSuperAdmin(address newPendingSuperAdmin) public {\n\n require(msg.sender == superAdmin, \"not superAdmin\");\n\n pendingSuperAdmin = newPendingSuperAdmin;\n\n }\n\n\n\n function acceptSuperAdmin() public {\n\n require(\n\n msg.sender == pendingSuperAdmin && msg.sender != address(0),\n\n \"not pendingSuperAdmin\"\n\n );\n\n superAdmin = pendingSuperAdmin;\n\n pendingSuperAdmin = address(0);\n\n }\n\n\n\n // WHITELIST\n\n // *************************************************************************************\n\n function addToWhitelist(\n\n address[] memory miners,\n\n uint256[] memory amountsInWei\n\n ) public {\n\n require(msg.sender == superAdmin, \"not admin\");\n\n require(miners.length == amountsInWei.length, \"lengths\");\n\n require(miners.length != 0, \"zero\");\n\n for (uint256 i = 0; i < miners.length; i++) {\n\n require(!whitelist[miners[i]], \"exists\");\n\n whitelist[miners[i]] = true;\n\n whitelistAmount[miners[i]] = amountsInWei[i];\n\n }\n\n }\n\n\n\n function removeFromWhitelist(address miner) public {\n\n require(msg.sender == superAdmin, \"not admin\");\n\n require(whitelist[miner], \"invalid miner\");\n\n whitelist[miner] = false;\n\n whitelistAmount[miner] = 0;\n\n uint256 currentDay = _getCurrentDay();\n\n (, uint256 amount, ) = _getMinerMineData(miner, currentDay);\n\n if (amount != 0) {\n\n _update(\n\n minerMineDays[miner],\n\n minerMineAmounts[miner],\n\n minerMineMineSeconds[miner],\n\n amount,\n\n false,\n\n currentDay\n\n );\n\n _update(\n\n mineDays,\n\n mineAmounts,\n\n mineMineSeconds,\n\n amount,\n\n false,\n\n currentDay\n\n );\n\n token.transfer(miner, amount);\n\n }\n\n }\n\n\n\n function setWhitelistActiveState(bool activeState) public {\n\n require(msg.sender == superAdmin, \"not admin\");\n\n whitelistActive = activeState;\n\n }\n\n\n\n // MINING\n\n // *************************************************************************************\n\n function mine(uint256 amount) public payable {\n\n require(amount > 0, \"zero\");\n\n if (whitelistActive) {\n\n require(whitelist[msg.sender], \"invalid miner\");\n\n require(amount <= whitelistAmount[msg.sender], \"1: too much\");\n\n }\n\n uint256 currentDay = _getCurrentDay();\n\n (, uint256 tokens, ) = _getMinerMineData(msg.sender, currentDay);\n\n require(tokens <= whitelistAmount[msg.sender], \"2: too much\");\n\n (uint256 numerator, uint256 denominator) = sbController\n\n .getValuePoolMiningFee(address(this));\n\n uint256 fee = amount.mul(numerator).div(denominator);\n\n require(msg.value == fee, \"invalid fee\");\n\n sbEthFeePool.deposit{value: msg.value}();\n\n token.transferFrom(msg.sender, address(this), amount);\n\n\n\n _update(\n\n minerMineDays[msg.sender],\n\n minerMineAmounts[msg.sender],\n\n minerMineMineSeconds[msg.sender],\n\n amount,\n\n true,\n\n currentDay\n\n );\n\n _update(\n\n mineDays,\n\n mineAmounts,\n\n mineMineSeconds,\n\n amount,\n\n true,\n\n currentDay\n\n );\n\n }\n\n\n\n function unmine(uint256 amount) public payable {\n\n require(amount > 0, \"zero\");\n\n (uint256 numerator, uint256 denominator) = sbController\n\n .getValuePoolUnminingFee(address(this));\n\n uint256 fee = amount.mul(numerator).div(denominator);\n\n require(msg.value == fee, \"invalid fee\");\n\n sbEthFeePool.deposit{value: msg.value}();\n\n uint256 currentDay = _getCurrentDay();\n\n _update(\n\n minerMineDays[msg.sender],\n\n minerMineAmounts[msg.sender],\n\n minerMineMineSeconds[msg.sender],\n\n amount,\n\n false,\n\n currentDay\n\n );\n\n _update(\n\n mineDays,\n\n mineAmounts,\n\n mineMineSeconds,\n\n amount,\n\n false,\n\n currentDay\n\n );\n\n token.transfer(msg.sender, amount);\n\n }\n\n\n\n function getMinerDayLastClaimedFor(address miner)\n\n public\n\n view\n\n returns (uint256)\n\n {\n\n uint256 len = minerMineDays[miner].length;\n\n if (len != 0) {\n\n return\n\n minerDayLastClaimedFor[miner] == 0\n\n ? minerMineDays[miner][0].sub(1)\n\n : minerDayLastClaimedFor[miner];\n\n }\n\n return 0;\n\n }\n\n\n\n function getMinerMineData(address miner, uint256 dayNumber)\n\n public\n\n view\n\n returns (\n\n uint256,\n\n uint256,\n\n uint256\n\n )\n\n {\n\n uint256 day = dayNumber == 0 ? _getCurrentDay() : dayNumber;\n\n return _getMinerMineData(miner, day);\n\n }\n\n\n\n function getMineData(uint256 dayNumber)\n\n public\n\n view\n\n returns (\n\n uint256,\n\n uint256,\n\n uint256\n\n )\n\n {\n\n uint256 day = dayNumber == 0 ? _getCurrentDay() : dayNumber;\n\n return _getMineData(day);\n\n }\n\n\n\n // CLAIMING\n\n // *************************************************************************************\n\n function claimAll() public payable {\n\n uint256 len = minerMineDays[msg.sender].length;\n\n require(len != 0, \"no mines\");\n\n uint256 currentDay = _getCurrentDay();\n\n uint256 dayLastClaimedFor = minerDayLastClaimedFor[msg.sender] == 0\n\n ? minerMineDays[msg.sender][0].sub(1)\n\n : minerDayLastClaimedFor[msg.sender];\n\n uint256 vestingDays = sbController.getValuePoolVestingDays(\n\n address(this)\n\n );\n\n require(\n\n currentDay > dayLastClaimedFor.add(vestingDays),\n\n \"already claimed\"\n\n );\n\n // fee is calculated in _claim\n\n _claim(currentDay, msg.sender, dayLastClaimedFor, vestingDays);\n\n }\n\n\n\n function claimUpTo(uint256 day) public payable {\n\n uint256 len = minerMineDays[msg.sender].length;\n\n require(len != 0, \"no mines\");\n\n require(day <= _getCurrentDay(), \"invalid day\");\n\n uint256 dayLastClaimedFor = minerDayLastClaimedFor[msg.sender] == 0\n\n ? minerMineDays[msg.sender][0].sub(1)\n\n : minerDayLastClaimedFor[msg.sender];\n\n uint256 vestingDays = sbController.getValuePoolVestingDays(\n\n address(this)\n\n );\n\n require(day > dayLastClaimedFor.add(vestingDays), \"already claimed\");\n\n // fee is calculated in _claim\n\n _claim(day, msg.sender, dayLastClaimedFor, vestingDays);\n\n }\n\n\n\n function getRewardsDueAll(address miner) public view returns (uint256) {\n\n uint256 len = minerMineDays[miner].length;\n\n if (len == 0) {\n\n return 0;\n\n }\n\n uint256 currentDay = _getCurrentDay();\n\n uint256 dayLastClaimedFor = minerDayLastClaimedFor[miner] == 0\n\n ? minerMineDays[miner][0].sub(1)\n\n : minerDayLastClaimedFor[miner];\n\n uint256 vestingDays = sbController.getValuePoolVestingDays(\n\n address(this)\n\n );\n\n if (!(currentDay > dayLastClaimedFor.add(vestingDays))) {\n\n return 0;\n\n }\n\n return\n\n _getRewardsDue(currentDay, miner, dayLastClaimedFor, vestingDays);\n\n }\n\n\n\n function getRewardsDueUpTo(uint256 day, address miner)\n\n public\n\n view\n\n returns (uint256)\n\n {\n\n uint256 len = minerMineDays[miner].length;\n\n if (len == 0) {\n\n return 0;\n\n }\n\n require(day <= _getCurrentDay(), \"invalid day\");\n\n uint256 dayLastClaimedFor = minerDayLastClaimedFor[miner] == 0\n\n ? minerMineDays[miner][0].sub(1)\n\n : minerDayLastClaimedFor[miner];\n\n uint256 vestingDays = sbController.getValuePoolVestingDays(\n\n address(this)\n\n );\n\n if (!(day > dayLastClaimedFor.add(vestingDays))) {\n\n return 0;\n\n }\n\n return _getRewardsDue(day, miner, dayLastClaimedFor, vestingDays);\n\n }\n\n\n\n // SUPPORT\n\n // *************************************************************************************\n\n function _getMinerMineData(address miner, uint256 day)\n\n internal\n\n view\n\n returns (\n\n uint256,\n\n uint256,\n\n uint256\n\n )\n\n {\n\n uint256[] memory _Days = minerMineDays[miner];\n\n uint256[] memory _Amounts = minerMineAmounts[miner];\n\n uint256[] memory _UnitSeconds = minerMineMineSeconds[miner];\n\n return _get(_Days, _Amounts, _UnitSeconds, day);\n\n }\n\n\n\n function _getMineData(uint256 day)\n\n internal\n\n view\n\n returns (\n\n uint256,\n\n uint256,\n\n uint256\n\n )\n\n {\n\n return _get(mineDays, mineAmounts, mineMineSeconds, day);\n\n }\n\n\n\n function _get(\n\n uint256[] memory _Days,\n\n uint256[] memory _Amounts,\n\n uint256[] memory _UnitSeconds,\n\n uint256 day\n\n )\n\n internal\n\n pure\n\n returns (\n\n uint256,\n\n uint256,\n\n uint256\n\n )\n\n {\n\n uint256 len = _Days.length;\n\n if (len == 0) {\n\n return (day, 0, 0);\n\n }\n\n if (day < _Days[0]) {\n\n return (day, 0, 0);\n\n }\n\n uint256 lastIndex = len.sub(1);\n\n uint256 lastMinedDay = _Days[lastIndex];\n\n if (day == lastMinedDay) {\n\n return (day, _Amounts[lastIndex], _UnitSeconds[lastIndex]);\n\n } else if (day > lastMinedDay) {\n\n return (day, _Amounts[lastIndex], _Amounts[lastIndex].mul(1 days));\n\n }\n\n return _find(_Days, _Amounts, _UnitSeconds, day);\n\n }\n\n\n\n function _find(\n\n uint256[] memory _Days,\n\n uint256[] memory _Amounts,\n\n uint256[] memory _UnitSeconds,\n\n uint256 day\n\n )\n\n internal\n\n pure\n\n returns (\n\n uint256,\n\n uint256,\n\n uint256\n\n )\n\n {\n\n uint256 left = 0;\n\n uint256 right = _Days.length.sub(1);\n\n uint256 middle = right.add(left).div(2);\n\n while (left < right) {\n\n if (_Days[middle] == day) {\n\n return (day, _Amounts[middle], _UnitSeconds[middle]);\n\n } else if (_Days[middle] > day) {\n\n if (middle > 0 && _Days[middle.sub(1)] < day) {\n\n return (\n\n day,\n\n _Amounts[middle.sub(1)],\n\n _Amounts[middle.sub(1)].mul(1 days)\n\n );\n\n }\n\n if (middle == 0) {\n\n return (day, 0, 0);\n\n }\n\n right = middle.sub(1);\n\n } else if (_Days[middle] < day) {\n\n if (\n\n middle < _Days.length.sub(1) && _Days[middle.add(1)] > day\n\n ) {\n\n return (\n\n day,\n\n _Amounts[middle],\n\n _Amounts[middle].mul(1 days)\n\n );\n\n }\n\n left = middle.add(1);\n\n }\n\n middle = right.add(left).div(2);\n\n }\n\n if (_Days[middle] != day) {\n\n return (day, 0, 0);\n\n } else {\n\n return (day, _Amounts[middle], _UnitSeconds[middle]);\n\n }\n\n }\n\n\n\n function _update(\n\n uint256[] storage _Days,\n\n uint256[] storage _Amounts,\n\n uint256[] storage _UnitSeconds,\n\n uint256 amount,\n\n bool adding,\n\n uint256 currentDay\n\n ) internal {\n\n uint256 len = _Days.length;\n\n uint256 secondsInADay = 1 days;\n\n uint256 secondsSinceStartOfDay = block.timestamp % secondsInADay;\n\n uint256 secondsUntilEndOfDay = secondsInADay.sub(\n\n secondsSinceStartOfDay\n\n );\n\n\n\n if (len == 0) {\n\n if (adding) {\n\n _Days.push(currentDay);\n\n _Amounts.push(amount);\n\n _UnitSeconds.push(amount.mul(secondsUntilEndOfDay));\n\n } else {\n\n require(false, \"1: not enough mine\");\n\n }\n\n } else {\n\n uint256 lastIndex = len.sub(1);\n\n uint256 lastMinedDay = _Days[lastIndex];\n\n uint256 lastMinedAmount = _Amounts[lastIndex];\n\n uint256 lastUnitSeconds = _UnitSeconds[lastIndex];\n\n\n\n uint256 newAmount;\n\n uint256 newUnitSeconds;\n\n\n\n if (lastMinedDay == currentDay) {\n\n if (adding) {\n\n newAmount = lastMinedAmount.add(amount);\n\n newUnitSeconds = lastUnitSeconds.add(\n\n amount.mul(secondsUntilEndOfDay)\n\n );\n\n } else {\n\n require(lastMinedAmount >= amount, \"2: not enough mine\");\n\n newAmount = lastMinedAmount.sub(amount);\n\n newUnitSeconds = lastUnitSeconds.sub(\n\n amount.mul(secondsUntilEndOfDay)\n\n );\n\n }\n\n _Amounts[lastIndex] = newAmount;\n\n _UnitSeconds[lastIndex] = newUnitSeconds;\n\n } else {\n\n if (adding) {\n\n newAmount = lastMinedAmount.add(amount);\n\n newUnitSeconds = lastMinedAmount.mul(1 days).add(\n\n amount.mul(secondsUntilEndOfDay)\n\n );\n\n } else {\n\n require(lastMinedAmount >= amount, \"3: not enough mine\");\n\n newAmount = lastMinedAmount.sub(amount);\n\n newUnitSeconds = lastMinedAmount.mul(1 days).sub(\n\n amount.mul(secondsUntilEndOfDay)\n\n );\n\n }\n\n _Days.push(currentDay);\n\n _Amounts.push(newAmount);\n\n _UnitSeconds.push(newUnitSeconds);\n\n }\n\n }\n\n }\n\n\n\n function _claim(\n\n uint256 upToDay,\n\n address miner,\n\n uint256 dayLastClaimedFor,\n\n uint256 vestingDays\n\n ) internal {\n\n uint256 rewards = _getRewardsDue(\n\n upToDay,\n\n miner,\n\n dayLastClaimedFor,\n\n vestingDays\n\n );\n\n require(rewards > 0, \"no rewards\");\n\n (uint256 numerator, uint256 denominator) = sbController\n\n .getValuePoolClaimingFee(address(this));\n\n uint256 fee = rewards.mul(numerator).div(denominator);\n\n require(msg.value == fee, \"invalid fee\");\n\n sbEthFeePool.deposit{value: msg.value}();\n\n minerDayLastClaimedFor[miner] = upToDay.sub(vestingDays);\n\n sbController.requestRewards(miner, rewards);\n\n }\n\n\n\n function _getRewardsDue(\n\n uint256 upToDay,\n\n address miner,\n\n uint256 dayLastClaimedFor,\n\n uint256 vestingDays\n\n ) internal view returns (uint256) {\n\n uint256 rewards;\n\n for (\n\n uint256 day = dayLastClaimedFor.add(1);\n\n day <= upToDay.sub(vestingDays);\n\n day++\n\n ) {\n\n (, , uint256 minerMineSecondsForDay) = _getMinerMineData(\n\n miner,\n\n day\n\n );\n\n (, , uint256 mineSecondsForDay) = _getMineData(day);\n\n if (mineSecondsForDay == 0) {\n\n continue;\n\n }\n\n uint256 availableRewards = sbController.getValuePoolRewards(\n\n address(this),\n\n day\n\n );\n\n uint256 amount = availableRewards.mul(minerMineSecondsForDay).div(\n\n mineSecondsForDay\n\n );\n\n rewards = rewards.add(amount);\n\n }\n\n return rewards;\n\n }\n\n\n\n function _getCurrentDay() internal view returns (uint256) {\n\n return block.timestamp.div(1 days).add(1);\n\n 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0":{"kind":"number","value":693,"string":"693"},"address":{"kind":"string","value":"0xf58e1431B4bb3F092db0B14a8D1054ED8c613D7E"},"source_code":{"kind":"string","value":"pragma solidity 0.5.17;\npragma experimental ABIEncoderV2;\n\nlibrary Address {\n\n /**\n\n * @dev Returns true if `account` is a contract.\n\n *\n\n * [IMPORTANT]\n\n * ====\n\n * It is unsafe to assume that an address for which this function returns\n\n * false is an externally-owned account (EOA) and not a contract.\n\n *\n\n * Among others, `isContract` will return false for the following\n\n * types of addresses:\n\n *\n\n * - an externally-owned account\n\n * - a contract in construction\n\n * - an address where a contract will be created\n\n * - an address where a contract lived, but was destroyed\n\n * ====\n\n */\n\n function isContract(address account) internal view returns (bool) {\n\n // This method relies in extcodesize, which returns 0 for contracts in\n\n // construction, since the code is only stored at the end of the\n\n // constructor execution.\n\n\n\n uint256 size;\n\n // solhint-disable-next-line no-inline-assembly\n\n assembly { size := extcodesize(account) }\n\n return size > 0;\n\n }\n\n\n\n /**\n\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n\n * `recipient`, forwarding all available gas and reverting on errors.\n\n *\n\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n\n * imposed by `transfer`, making them unable to receive funds via\n\n * `transfer`. {sendValue} removes this limitation.\n\n *\n\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n\n *\n\n * IMPORTANT: because control is transferred to `recipient`, care must be\n\n * taken to not create reentrancy vulnerabilities. Consider using\n\n * {ReentrancyGuard} or the\n\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n\n */\n\n function sendValue(address payable recipient, uint256 amount) internal {\n\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n\n\n // solhint-disable-next-line avoid-low-level-calls, avoid-call-value\n\n (bool success, ) = recipient.call.value(amount)(\"\");\n\n require(success, \"Address: unable to send value, recipient may have reverted\");\n\n }\n\n\n\n /**\n\n * @dev Performs a Solidity function call using a low level `call`. A\n\n * plain`call` is an unsafe replacement for a function call: use this\n\n * function instead.\n\n *\n\n * If `target` reverts with a revert reason, it is bubbled up by this\n\n * function (like regular Solidity function calls).\n\n *\n\n * Returns the raw returned data. To convert to the expected return value,\n\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n\n *\n\n * Requirements:\n\n *\n\n * - `target` must be a contract.\n\n * - calling `target` with `data` must not revert.\n\n *\n\n * _Available since v3.1._\n\n */\n\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n\n return functionCall(target, data, \"Address: low-level call failed\");\n\n }\n\n\n\n /**\n\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n\n * `errorMessage` as a fallback revert reason when `target` reverts.\n\n *\n\n * _Available since v3.1._\n\n */\n\n function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {\n\n return _functionCallWithValue(target, data, 0, errorMessage);\n\n }\n\n\n\n /**\n\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n\n * but also transferring `value` wei to `target`.\n\n *\n\n * Requirements:\n\n *\n\n * - the calling contract must have an ETH balance of at least `value`.\n\n * - the called Solidity function must be `payable`.\n\n *\n\n * _Available since v3.1._\n\n */\n\n function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n\n }\n\n\n\n /**\n\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n\n *\n\n * _Available since v3.1._\n\n */\n\n function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {\n\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n\n return _functionCallWithValue(target, data, value, errorMessage);\n\n }\n\n\n\n function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {\n\n require(isContract(target), \"Address: call to non-contract\");\n\n\n\n // solhint-disable-next-line avoid-low-level-calls\n\n (bool success, bytes memory returndata) = target.call.value(weiValue)(data);\n\n if (success) {\n\n return returndata;\n\n } else {\n\n // Look for revert reason and bubble it up if present\n\n if (returndata.length > 0) {\n\n // The easiest way to bubble the revert reason is using memory via assembly\n\n\n\n // solhint-disable-next-line no-inline-assembly\n\n assembly {\n\n let returndata_size := mload(returndata)\n\n revert(add(32, returndata), returndata_size)\n\n }\n\n } else {\n\n revert(errorMessage);\n\n }\n\n }\n\n }\n\n}\n\ninterface IERC20 {\n\n /**\n\n * @dev Returns the amount of tokens in existence.\n\n */\n\n function totalSupply() external view returns (uint256);\n\n\n\n /**\n\n * @dev Returns the amount of tokens owned by `account`.\n\n */\n\n function balanceOf(address account) external view returns (uint256);\n\n\n\n /**\n\n * @dev Moves `amount` tokens from the caller's account to `recipient`.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * Emits a {Transfer} event.\n\n */\n\n function transfer(address recipient, uint256 amount) external returns (bool);\n\n\n\n /**\n\n * @dev Returns the remaining number of tokens that `spender` will be\n\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n\n * zero by default.\n\n *\n\n * This value changes when {approve} or {transferFrom} are called.\n\n */\n\n function allowance(address owner, address spender) external view returns (uint256);\n\n\n\n /**\n\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n\n * that someone may use both the old and the new allowance by unfortunate\n\n * transaction ordering. One possible solution to mitigate this race\n\n * condition is to first reduce the spender's allowance to 0 and set the\n\n * desired value afterwards:\n\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n\n *\n\n * Emits an {Approval} event.\n\n */\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n\n\n /**\n\n * @dev Moves `amount` tokens from `sender` to `recipient` using the\n\n * allowance mechanism. `amount` is then deducted from the caller's\n\n * allowance.\n\n *\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n *\n\n * Emits a {Transfer} event.\n\n */\n\n function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);\n\n\n\n /**\n\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n\n * another (`to`).\n\n *\n\n * Note that `value` may be zero.\n\n */\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n\n\n /**\n\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n\n * a call to {approve}. `value` is the new allowance.\n\n */\n\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n}\n\nlibrary SafeERC20 {\n\n using SafeMath for uint256;\n\n using Address for address;\n\n\n\n function safeTransfer(IERC20 token, address to, uint256 value) internal {\n\n _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));\n\n }\n\n\n\n function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {\n\n _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));\n\n }\n\n\n\n /**\n\n * @dev Deprecated. This function has issues similar to the ones found in\n\n * {IERC20-approve}, and its usage is discouraged.\n\n *\n\n * Whenever possible, use {safeIncreaseAllowance} and\n\n * {safeDecreaseAllowance} instead.\n\n */\n\n function safeApprove(IERC20 token, address spender, uint256 value) internal {\n\n // safeApprove should only be called when setting an initial allowance,\n\n // or when resetting it to zero. To increase and decrease it, use\n\n // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'\n\n // solhint-disable-next-line max-line-length\n\n require((value == 0) || (token.allowance(address(this), spender) == 0),\n\n \"SafeERC20: approve from non-zero to non-zero allowance\"\n\n );\n\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));\n\n }\n\n\n\n function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {\n\n uint256 newAllowance = token.allowance(address(this), spender).add(value);\n\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\n\n }\n\n\n\n function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {\n\n uint256 newAllowance = token.allowance(address(this), spender).sub(value, \"SafeERC20: decreased allowance below zero\");\n\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\n\n }\n\n\n\n /**\n\n * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement\n\n * on the return value: the return value is optional (but if data is returned, it must not be false).\n\n * @param token The token targeted by the call.\n\n * @param data The call data (encoded using abi.encode or one of its variants).\n\n */\n\n function _callOptionalReturn(IERC20 token, bytes memory data) private {\n\n // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since\n\n // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that\n\n // the target address contains contract code and also asserts for success in the low-level call.\n\n\n\n bytes memory returndata = address(token).functionCall(data, \"SafeERC20: low-level call failed\");\n\n if (returndata.length > 0) { // Return data is optional\n\n // solhint-disable-next-line max-line-length\n\n require(abi.decode(returndata, (bool)), \"SafeERC20: ERC20 operation did not succeed\");\n\n }\n\n }\n\n}\n\nlibrary SafeMath {\n\n /**\n\n * @dev Returns the addition of two unsigned integers, reverting on\n\n * overflow.\n\n *\n\n * Counterpart to Solidity's `+` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Addition cannot overflow.\n\n */\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the subtraction of two unsigned integers, reverting on\n\n * overflow (when the result is negative).\n\n *\n\n * Counterpart to Solidity's `-` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Subtraction cannot overflow.\n\n */\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return sub(a, b, \"SafeMath: subtraction overflow\");\n\n }\n\n\n\n /**\n\n * @dev Returns the subtraction of two unsigned integers, reverting with custom message on\n\n * overflow (when the result is negative).\n\n *\n\n * Counterpart to Solidity's `-` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Subtraction cannot overflow.\n\n */\n\n function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the multiplication of two unsigned integers, reverting on\n\n * overflow.\n\n *\n\n * Counterpart to Solidity's `*` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Multiplication cannot overflow.\n\n */\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n\n // benefit is lost if 'b' is also tested.\n\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n\n if (a == 0) {\n\n return 0;\n\n }\n\n\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the integer division of two unsigned integers. Reverts on\n\n * division by zero. The result is rounded towards zero.\n\n *\n\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n\n * uses an invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return div(a, b, \"SafeMath: division by zero\");\n\n }\n\n\n\n /**\n\n * @dev Returns the integer division of two unsigned integers. Reverts with custom message on\n\n * division by zero. The result is rounded towards zero.\n\n *\n\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n\n * uses an invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n\n * Reverts when dividing by zero.\n\n *\n\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n\n * invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return mod(a, b, \"SafeMath: modulo by zero\");\n\n }\n\n\n\n /**\n\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n\n * Reverts with custom message when dividing by zero.\n\n *\n\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n\n * invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n require(b != 0, errorMessage);\n\n return a % b;\n\n }\n\n}\n\ncontract HAMReserves {\n\n\n\n // Token that serves as a reserve for HAM\n\n address public reserveToken;\n\n\n\n address public gov;\n\n\n\n address public pendingGov;\n\n\n\n address public rebaser;\n\n\n\n address public hamAddress;\n\n\n\n /*** Gov Events ***/\n\n\n\n /**\n\n * @notice Event emitted when pendingGov is changed\n\n */\n\n event NewPendingGov(address oldPendingGov, address newPendingGov);\n\n\n\n /**\n\n * @notice Event emitted when gov is changed\n\n */\n\n event NewGov(address oldGov, address newGov);\n\n\n\n /**\n\n * @notice Event emitted when rebaser is changed\n\n */\n\n event NewRebaser(address oldRebaser, address newRebaser);\n\n\n\n\n\n modifier onlyGov() {\n\n require(msg.sender == gov);\n\n _;\n\n }\n\n\n\n constructor(\n\n address reserveToken_,\n\n address hamAddress_\n\n )\n\n public\n\n {\n\n reserveToken = reserveToken_;\n\n hamAddress = hamAddress_;\n\n gov = msg.sender;\n\n }\n\n\n\n function _setRebaser(address rebaser_)\n\n external\n\n onlyGov\n\n {\n\n address oldRebaser = rebaser;\n\n HAMTokenInterface(hamAddress).decreaseAllowance(oldRebaser, uint256(-1));\n\n rebaser = rebaser_;\n\n HAMTokenInterface(hamAddress).approve(rebaser_, uint256(-1));\n\n emit NewRebaser(oldRebaser, rebaser_);\n\n }\n\n\n\n /** @notice sets the pendingGov\n\n * @param pendingGov_ The address of the rebaser contract to use for authentication.\n\n */\n\n function _setPendingGov(address pendingGov_)\n\n external\n\n onlyGov\n\n {\n\n address oldPendingGov = pendingGov;\n\n pendingGov = pendingGov_;\n\n emit NewPendingGov(oldPendingGov, pendingGov_);\n\n }\n\n\n\n /**\n\n * @notice lets msg.sender accept governance\n\n */\n\n function _acceptGov()\n\n external\n\n {\n\n require(msg.sender == pendingGov, \"!pending\");\n\n address oldGov = gov;\n\n gov = pendingGov;\n\n pendingGov = address(0);\n\n emit NewGov(oldGov, gov);\n\n }\n\n\n\n /// @notice Moves all tokens to a new reserve contract\n\n function migrateReserves(\n\n address newReserve,\n\n address[] memory tokens\n\n )\n\n public\n\n onlyGov\n\n {\n\n for (uint256 i = 0; i < tokens.length; i++) {\n\n IERC20 token = IERC20(tokens[i]);\n\n uint256 bal = token.balanceOf(address(this));\n\n SafeERC20.safeTransfer(token, newReserve, bal);\n\n }\n\n }\n\n\n\n /// @notice Gets the current amount of reserves token held by this contract\n\n function reserves()\n\n public\n\n view\n\n returns (uint256)\n\n {\n\n return IERC20(reserveToken).balanceOf(address(this));\n\n }\n\n}\n\ncontract HAMGovernanceStorage {\n\n /// @notice A record of each accounts delegate\n\n mapping (address => address) internal _delegates;\n\n\n\n /// @notice A checkpoint for marking number of votes from a given block\n\n struct Checkpoint {\n\n uint32 fromBlock;\n\n uint256 votes;\n\n }\n\n\n\n /// @notice A record of votes checkpoints for each account, by index\n\n mapping (address => mapping (uint32 => Checkpoint)) public checkpoints;\n\n\n\n /// @notice The number of checkpoints for each account\n\n mapping (address => uint32) public numCheckpoints;\n\n\n\n /// @notice The EIP-712 typehash for the contract's domain\n\n bytes32 public constant DOMAIN_TYPEHASH = keccak256(\"EIP712Domain(string name,uint256 chainId,address verifyingContract)\");\n\n\n\n /// @notice The EIP-712 typehash for the delegation struct used by the contract\n\n bytes32 public constant DELEGATION_TYPEHASH = keccak256(\"Delegation(address delegatee,uint256 nonce,uint256 expiry)\");\n\n\n\n /// @notice A record of states for signing / validating signatures\n\n mapping (address => uint) public nonces;\n\n}\n\ncontract HAMTokenStorage {\n\n\n\n using SafeMath for uint256;\n\n\n\n /**\n\n * @dev Guard variable for re-entrancy checks. Not currently used\n\n */\n\n bool internal _notEntered;\n\n\n\n /**\n\n * @notice EIP-20 token name for this token\n\n */\n\n string public name;\n\n\n\n /**\n\n * @notice EIP-20 token symbol for this token\n\n */\n\n string public symbol;\n\n\n\n /**\n\n * @notice EIP-20 token decimals for this token\n\n */\n\n uint8 public decimals;\n\n\n\n /**\n\n * @notice Governor for this contract\n\n */\n\n address public gov;\n\n\n\n /**\n\n * @notice Pending governance for this contract\n\n */\n\n address public pendingGov;\n\n\n\n /**\n\n * @notice Approved rebaser for this contract\n\n */\n\n address public rebaser;\n\n\n\n /**\n\n * @notice Reserve address of HAM protocol\n\n */\n\n address public incentivizer;\n\n\n\n /**\n\n * @notice Total supply of HAMs\n\n */\n\n uint256 public totalSupply;\n\n\n\n /**\n\n * @notice Internal decimals used to handle scaling factor\n\n */\n\n uint256 public constant internalDecimals = 10**24;\n\n\n\n /**\n\n * @notice Used for percentage maths\n\n */\n\n uint256 public constant BASE = 10**18;\n\n\n\n /**\n\n * @notice Scaling factor that adjusts everyone's balances\n\n */\n\n uint256 public hamsScalingFactor;\n\n\n\n mapping (address => uint256) internal _hamBalances;\n\n\n\n mapping (address => mapping (address => uint256)) internal _allowedFragments;\n\n\n\n uint256 public initSupply;\n\n\n\n address public farmRegistry;\n\n}\n\ncontract HAMTokenInterface is HAMTokenStorage, HAMGovernanceStorage {\n\n\n\n /// @notice An event thats emitted when an account changes its delegate\n\n event DelegateChanged(address indexed delegator, address indexed fromDelegate, address indexed toDelegate);\n\n\n\n /// @notice An event thats emitted when a delegate account's vote balance changes\n\n event DelegateVotesChanged(address indexed delegate, uint previousBalance, uint newBalance);\n\n\n\n /**\n\n * @notice Event emitted when tokens are rebased\n\n */\n\n event Rebase(uint256 epoch, uint256 prevHamsScalingFactor, uint256 newHamsScalingFactor);\n\n\n\n /*** Gov Events ***/\n\n\n\n /**\n\n * @notice Event emitted when pendingGov is changed\n\n */\n\n event NewPendingGov(address oldPendingGov, address newPendingGov);\n\n\n\n /**\n\n * @notice Event emitted when gov is changed\n\n */\n\n event NewGov(address oldGov, address newGov);\n\n\n\n /**\n\n * @notice Sets the rebaser contract\n\n */\n\n event NewRebaser(address oldRebaser, address newRebaser);\n\n\n\n /**\n\n * @notice Sets the incentivizer contract\n\n */\n\n event NewIncentivizer(address oldIncentivizer, address newIncentivizer);\n\n\n\n /* - ERC20 Events - */\n\n\n\n /**\n\n * @notice EIP20 Transfer event\n\n */\n\n event Transfer(address indexed from, address indexed to, uint amount);\n\n\n\n /**\n\n * @notice EIP20 Approval event\n\n */\n\n event Approval(address indexed owner, address indexed spender, uint amount);\n\n\n\n /* - Extra Events - */\n\n /**\n\n * @notice Tokens minted event\n\n */\n\n event Mint(address to, uint256 amount);\n\n\n\n // Public functions\n\n function transfer(address to, uint256 value) external returns(bool);\n\n function transferFrom(address from, address to, uint256 value) external returns(bool);\n\n function balanceOf(address who) external view returns(uint256);\n\n function balanceOfUnderlying(address who) external view returns(uint256);\n\n function allowance(address owner_, address spender) external view returns(uint256);\n\n function approve(address spender, uint256 value) external returns (bool);\n\n function increaseAllowance(address spender, uint256 addedValue) external returns (bool);\n\n function decreaseAllowance(address spender, uint256 subtractedValue) external returns (bool);\n\n function maxScalingFactor() external view returns (uint256);\n\n\n\n /* - Governance Functions - */\n\n function getPriorVotes(address account, uint blockNumber) external view returns (uint256);\n\n function delegateBySig(address delegatee, uint nonce, uint expiry, uint8 v, bytes32 r, bytes32 s) external;\n\n function delegate(address delegatee) external;\n\n function delegates(address delegator) external view returns (address);\n\n function getCurrentVotes(address account) external view returns (uint256);\n\n\n\n /* - Permissioned/Governance functions - */\n\n function mint(address to, uint256 amount) external returns (bool);\n\n function rebase(uint256 epoch, uint256 indexDelta, bool positive) external returns (uint256);\n\n function _setRebaser(address rebaser_) external;\n\n function _setIncentivizer(address incentivizer_) external;\n\n function _setPendingGov(address pendingGov_) external;\n\n function _acceptGov() 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ERC20(VESTING).balanceOf(account);\n\n 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0":{"kind":"number","value":695,"string":"695"},"address":{"kind":"string","value":"0xf644d4477cd8db7791cea3013cb053b3fec4beb3"},"source_code":{"kind":"string","value":"pragma solidity 0.7.1;\n\ncontract Lion {\n\n\n\n using SafeMath for uint256;\n\n\n\n string public constant name = \"Cryptoenter LION token\";\n\n\n\n string public constant symbol = \"LION\";\n\n\n\n uint8 public constant decimals = 8;\n\n\n\n uint256 public constant decimals_multiplier = 100_000_000;\n\n\n\n address adminAddress = address(0x0);\n\n\n\n event Approval(address indexed tokenOwner, address indexed spender, uint tokens);\n\n event Transfer(address indexed from, address indexed to, uint tokens);\n\n\n\n mapping(address => uint256) balances;\n\n\n\n mapping(address => mapping(address => uint256)) allowed;\n\n\n\n mapping(address => bool) tempNotLockedAccounts;\n\n\n\n uint256 totalSupply_;\n\n\n\n uint temporarilyLockDate = 0;\n\n\n\n bool suspended = false;\n\n\n\n mapping(address => bool) suspendedAccounts;\n\n\n\n struct Issue {\n\n uint availableFromTimestamp;\n\n uint256 amount;\n\n bool complete;\n\n }\n\n\n\n struct IssueStage {\n\n uint currentN;\n\n uint count30;\n\n uint count;\n\n }\n\n\n\n mapping(uint => Issue[3]) issuePeriods;\n\n\n\n IssueStage issueStage = IssueStage(0, 0, 0);\n\n\n\n modifier enabled() {\n\n require(((block.timestamp > temporarilyLockDate || tempNotLockedAccounts[msg.sender] == true) && !suspended && suspendedAccounts[msg.sender] != true) || msg.sender == adminAddress);\n\n _;\n\n }\n\n\n\n /**\n\n * @dev Fix for the ERC20 short address attack.\n\n */\n\n modifier onlyPayloadSize(uint size) {\n\n require(msg.data.length >= size + 4);\n\n _;\n\n }\n\n\n\n constructor(uint256 totalSupply, uint lockDate) public {\n\n totalSupply_ = totalSupply.mul(decimals_multiplier);\n\n temporarilyLockDate = lockDate;\n\n balances[msg.sender] = totalSupply_;\n\n adminAddress = msg.sender;\n\n\n\n// 167099833\n\n// issuePeriods[0][0] = Issue(1599868800, 128538333, false);\n\n// issuePeriods[0][1] = Issue(1599868800, 25707667, false);\n\n// issuePeriods[0][2] = Issue(1599868800, 12853833, false);\n\n\n\n issuePeriods[0][0] = Issue(1638316800, 403815084, false);\n\n issuePeriods[0][1] = Issue(1633046400, 80763017, false);\n\n issuePeriods[0][2] = Issue(1633046400, 40381508, false);\n\n\n\n issuePeriods[1][0] = Issue(1701648000, 1268622500, false);\n\n issuePeriods[1][1] = Issue(1696377600, 253724500, false);\n\n issuePeriods[1][2] = Issue(1696377600, 126862250, false);\n\n\n\n issuePeriods[2][0] = Issue(1764547200, 3985495127, false);\n\n issuePeriods[2][1] = Issue(1759276800, 797099025, false);\n\n issuePeriods[2][2] = Issue(1759276800, 398549513, false);\n\n\n\n issuePeriods[3][0] = Issue(1827619200, 12520802212, false);\n\n issuePeriods[3][1] = Issue(1822348800, 2504160442, false);\n\n issuePeriods[3][2] = Issue(1822348800, 1252080221, false);\n\n\n\n issuePeriods[4][0] = Issue(1890950400, 39335260244, false);\n\n issuePeriods[4][1] = Issue(1885680000, 7867052049, false);\n\n issuePeriods[4][2] = Issue(1885680000, 3933526024, false);\n\n\n\n issuePeriods[5][0] = Issue(1985472000, 123575364606, false);\n\n issuePeriods[5][1] = Issue(1980201600, 24715072921, false);\n\n issuePeriods[5][2] = Issue(1980201600, 12357536461, false);\n\n\n\n issuePeriods[6][0] = Issue(2080252800, 388223457599, false);\n\n issuePeriods[6][1] = Issue(2074982400, 77644691520, false);\n\n issuePeriods[6][2] = Issue(2074982400, 38822345760, false);\n\n\n\n issuePeriods[7][0] = Issue(2206483200, 1219639962308, false);\n\n issuePeriods[7][1] = Issue(2201212800, 243927992462, false);\n\n issuePeriods[7][2] = Issue(2201212800, 121963996231, false);\n\n\n\n issuePeriods[8][0] = Issue(2364163200, 2005198000000, false);\n\n issuePeriods[8][1] = Issue(2358892800, 401039600000, false);\n\n issuePeriods[8][2] = Issue(2358892800, 200519800000, false);\n\n }\n\n\n\n function totalSupply() public view returns (uint256) {\n\n return totalSupply_;\n\n }\n\n\n\n function balanceOf(address tokenOwner) public view returns (uint) {\n\n return balances[tokenOwner];\n\n }\n\n\n\n function transfer(address receiver, uint numTokens) enabled onlyPayloadSize(2 * 32) public returns (bool) {\n\n require(numTokens <= balances[msg.sender]);\n\n balances[msg.sender] = balances[msg.sender].sub(numTokens);\n\n balances[receiver] = balances[receiver].add(numTokens);\n\n emit Transfer(msg.sender, receiver, numTokens);\n\n return true;\n\n }\n\n\n\n function approve(address delegate, uint numTokens) enabled public returns (bool) {\n\n allowed[msg.sender][delegate] = numTokens;\n\n emit Approval(msg.sender, delegate, numTokens);\n\n return true;\n\n }\n\n\n\n function allowance(address owner, address delegate) public view returns (uint) {\n\n return allowed[owner][delegate];\n\n }\n\n\n\n function transferFrom(address owner, address buyer, uint numTokens) enabled onlyPayloadSize(2 * 32) public returns (bool) {\n\n require(numTokens <= balances[owner]);\n\n require(numTokens <= allowed[owner][msg.sender]);\n\n\n\n balances[owner] = balances[owner].sub(numTokens);\n\n allowed[owner][msg.sender] = allowed[owner][msg.sender].sub(numTokens);\n\n balances[buyer] = balances[buyer].add(numTokens);\n\n emit Transfer(owner, buyer, numTokens);\n\n return true;\n\n }\n\n\n\n //Admin functions\n\n\n\n modifier fromAdmin() {\n\n require(msg.sender == adminAddress);\n\n _;\n\n }\n\n\n\n function addTotalSupply(uint256 amount) fromAdmin private returns (uint256) {\n\n\n\n totalSupply_ = totalSupply_.add(amount);\n\n balances[msg.sender] = balances[msg.sender].add(amount);\n\n\n\n return totalSupply_;\n\n }\n\n\n\n function tempNotLockedAccount(address account) fromAdmin public returns (bool) {\n\n tempNotLockedAccounts[account] = !tempNotLockedAccounts[account];\n\n return tempNotLockedAccounts[account];\n\n }\n\n\n\n function setTemporarilyLockDate(uint date) fromAdmin public returns (uint) {\n\n temporarilyLockDate = date;\n\n return temporarilyLockDate;\n\n }\n\n\n\n function suspend() fromAdmin public returns (bool) {\n\n suspended = !suspended;\n\n return suspended;\n\n }\n\n\n\n function suspendAccount(address account) fromAdmin public returns (bool) {\n\n suspendedAccounts[account] = !suspendedAccounts[account];\n\n return suspendedAccounts[account];\n\n }\n\n\n\n function issuePlanned() fromAdmin public returns (uint256) {\n\n\n\n if (issueStage.count == 3) {\n\n issueStage.currentN += 1;\n\n issueStage.count30 = 0;\n\n issueStage.count = 0;\n\n }\n\n\n\n require(issueStage.currentN < 9, \"All issues completed\");\n\n\n\n uint256 amount = 0;\n\n uint countBefore = issueStage.count;\n\n Issue[3] storage issues = issuePeriods[issueStage.currentN];\n\n for (uint i = 0; i < issues.length; i++) {\n\n if (!issues[i].complete) {\n\n if (block.timestamp >= issues[i].availableFromTimestamp) {\n\n issueStage.count += 1;\n\n issues[i].complete = true;\n\n amount += issues[i].amount;\n\n }\n\n }\n\n }\n\n\n\n require(countBefore < issueStage.count, \"Too early to issue\");\n\n\n\n addTotalSupply(amount.mul(decimals_multiplier));\n\n\n\n return totalSupply_;\n\n }\n\n\n\n function issue30Percent() fromAdmin public returns (uint256) {\n\n require(issueStage.count30 < 5, \"The fifth 30 percent issue completed\");\n\n\n\n uint256 amount = totalSupply_.div(100).mul(30);\n\n\n\n addTotalSupply(amount);\n\n\n\n issueStage.count30 += 1;\n\n\n\n return totalSupply_;\n\n }\n\n}\n\nlibrary SafeMath {\n\n /**\n\n * @dev Returns the addition of two unsigned integers, reverting on\n\n * overflow.\n\n *\n\n * Counterpart to Solidity's `+` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Addition cannot overflow.\n\n */\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n\n uint256 c = a + b;\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the subtraction of two unsigned integers, reverting on\n\n * overflow (when the result is negative).\n\n *\n\n * Counterpart to Solidity's `-` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Subtraction cannot overflow.\n\n */\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return sub(a, b, \"SafeMath: subtraction overflow\");\n\n }\n\n\n\n /**\n\n * @dev Returns the subtraction of two unsigned integers, reverting with custom message on\n\n * overflow (when the result is negative).\n\n *\n\n * Counterpart to Solidity's `-` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Subtraction cannot overflow.\n\n */\n\n function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n require(b <= a, errorMessage);\n\n uint256 c = a - b;\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the multiplication of two unsigned integers, reverting on\n\n * overflow.\n\n *\n\n * Counterpart to Solidity's `*` operator.\n\n *\n\n * Requirements:\n\n *\n\n * - Multiplication cannot overflow.\n\n */\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n\n // benefit is lost if 'b' is also tested.\n\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n\n if (a == 0) {\n\n return 0;\n\n }\n\n\n\n uint256 c = a * b;\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the integer division of two unsigned integers. Reverts on\n\n * division by zero. The result is rounded towards zero.\n\n *\n\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n\n * uses an invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return div(a, b, \"SafeMath: division by zero\");\n\n }\n\n\n\n /**\n\n * @dev Returns the integer division of two unsigned integers. Reverts with custom message on\n\n * division by zero. The result is rounded towards zero.\n\n *\n\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n\n * uses an invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n require(b > 0, errorMessage);\n\n uint256 c = a / b;\n\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n\n * Reverts when dividing by zero.\n\n *\n\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n\n * invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return mod(a, b, \"SafeMath: modulo by zero\");\n\n }\n\n\n\n /**\n\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n\n * Reverts with custom message when dividing by zero.\n\n *\n\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n\n * invalid opcode to revert (consuming all remaining gas).\n\n *\n\n * Requirements:\n\n *\n\n * - The divisor cannot be zero.\n\n */\n\n function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n require(b != 0, errorMessage);\n\n return a % b;\n\n 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0":{"kind":"number","value":696,"string":"696"},"address":{"kind":"string","value":"0xF657BB6bc979bf34d49e38AfBA34D5FD2A45B0Ca"},"source_code":{"kind":"string","value":"pragma solidity 0.6.12;\n\ninterface ILockStorage {\n\n function isLocked(address _wallet) external view returns (bool);\n\n\n\n function getLock(address _wallet) external view returns (uint256);\n\n\n\n function getLocker(address _wallet) external view returns (address);\n\n\n\n function setLock(address _wallet, address _locker, uint256 _releaseAfter) external;\n\n}\n\ninterface IModule {\n\n /**\n\n * @notice Inits a module for a wallet by e.g. setting some wallet specific parameters in storage.\n\n * @param _wallet The wallet.\n\n */\n\n function init(address _wallet) external;\n\n\n\n /**\t\n\n * @notice Adds a module to a wallet. Cannot execute when wallet is locked (or under recovery)\t\n\n * @param _wallet The target wallet.\t\n\n * @param _module The modules to authorise.\t\n\n */\t\n\n function addModule(address _wallet, address _module) external;\n\n}\n\ninterface IWallet {\n\n /**\n\n * @notice Returns the wallet owner.\n\n * @return The wallet owner address.\n\n */\n\n function owner() external view returns (address);\n\n\n\n /**\n\n * @notice Returns the number of authorised modules.\n\n * @return The number of authorised modules.\n\n */\n\n function modules() external view returns (uint);\n\n\n\n /**\n\n * @notice Sets a new owner for the wallet.\n\n * @param _newOwner The new owner.\n\n */\n\n function setOwner(address _newOwner) external;\n\n\n\n /**\n\n * @notice Checks if a module is authorised on the wallet.\n\n * @param _module The module address to check.\n\n * @return `true` if the module is authorised, otherwise `false`.\n\n */\n\n function authorised(address _module) external view returns (bool);\n\n\n\n /**\n\n * @notice Returns the module responsible for a static call redirection.\n\n * @param _sig The signature of the static call.\n\n * @return the module doing the redirection\n\n */\n\n function enabled(bytes4 _sig) external view returns (address);\n\n\n\n /**\n\n * @notice Enables/Disables a module.\n\n * @param _module The target module.\n\n * @param _value Set to `true` to authorise the module.\n\n */\n\n function authoriseModule(address _module, bool _value) external;\n\n\n\n /**\n\n * @notice Enables a static method by specifying the target module to which the call must be delegated.\n\n * @param _module The target module.\n\n * @param _method The static method signature.\n\n */\n\n function enableStaticCall(address _module, bytes4 _method) external;\n\n}\n\ncontract Storage {\n\n\n\n /**\n\n * @notice Throws if the caller is not an authorised module.\n\n */\n\n modifier onlyModule(address _wallet) {\n\n require(IWallet(_wallet).authorised(msg.sender), \"TS: must be an authorized module to call this method\");\n\n _;\n\n }\n\n}\n\ncontract BaseWallet is IWallet {\n\n\n\n // The implementation of the proxy\n\n address public implementation;\n\n // The owner\n\n address public override owner;\n\n // The authorised modules\n\n mapping (address => bool) public override authorised;\n\n // The enabled static calls\n\n mapping (bytes4 => address) public override enabled;\n\n // The number of modules\n\n uint public override modules;\n\n\n\n event AuthorisedModule(address indexed module, bool value);\n\n event EnabledStaticCall(address indexed module, bytes4 indexed method);\n\n event Invoked(address indexed module, address indexed target, uint indexed value, bytes data);\n\n event Received(uint indexed value, address indexed sender, bytes data);\n\n event OwnerChanged(address owner);\n\n\n\n /**\n\n * @notice Throws if the sender is not an authorised module.\n\n */\n\n modifier moduleOnly {\n\n require(authorised[msg.sender], \"BW: msg.sender not an authorized module\");\n\n _;\n\n }\n\n\n\n /**\n\n * @notice Inits the wallet by setting the owner and authorising a list of modules.\n\n * @param _owner The owner.\n\n * @param _modules The modules to authorise.\n\n */\n\n function init(address _owner, address[] calldata _modules) external {\n\n require(owner == address(0) && modules == 0, \"BW: wallet already initialised\");\n\n require(_modules.length > 0, \"BW: construction requires at least 1 module\");\n\n owner = _owner;\n\n modules = _modules.length;\n\n for (uint256 i = 0; i < _modules.length; i++) {\n\n require(authorised[_modules[i]] == false, \"BW: module is already added\");\n\n authorised[_modules[i]] = true;\n\n IModule(_modules[i]).init(address(this));\n\n emit AuthorisedModule(_modules[i], true);\n\n }\n\n if (address(this).balance > 0) {\n\n emit Received(address(this).balance, address(0), \"\");\n\n }\n\n }\n\n\n\n /**\n\n * @inheritdoc IWallet\n\n */\n\n function authoriseModule(address _module, bool _value) external override moduleOnly {\n\n if (authorised[_module] != _value) {\n\n emit AuthorisedModule(_module, _value);\n\n if (_value == true) {\n\n modules += 1;\n\n authorised[_module] = true;\n\n IModule(_module).init(address(this));\n\n } else {\n\n modules -= 1;\n\n require(modules > 0, \"BW: wallet must have at least one module\");\n\n delete authorised[_module];\n\n }\n\n }\n\n }\n\n\n\n /**\n\n * @inheritdoc IWallet\n\n */\n\n function enableStaticCall(address _module, bytes4 _method) external override moduleOnly {\n\n require(authorised[_module], \"BW: must be an authorised module for static call\");\n\n enabled[_method] = _module;\n\n emit EnabledStaticCall(_module, _method);\n\n }\n\n\n\n /**\n\n * @inheritdoc IWallet\n\n */\n\n function setOwner(address _newOwner) external override moduleOnly {\n\n require(_newOwner != address(0), \"BW: address cannot be null\");\n\n owner = _newOwner;\n\n emit OwnerChanged(_newOwner);\n\n }\n\n\n\n /**\n\n * @notice Performs a generic transaction.\n\n * @param _target The address for the transaction.\n\n * @param _value The value of the transaction.\n\n * @param _data The data of the transaction.\n\n */\n\n function invoke(address _target, uint _value, bytes calldata _data) external moduleOnly returns (bytes memory _result) {\n\n bool success;\n\n (success, _result) = _target.call{value: _value}(_data);\n\n if (!success) {\n\n // solhint-disable-next-line no-inline-assembly\n\n assembly {\n\n returndatacopy(0, 0, returndatasize())\n\n revert(0, returndatasize())\n\n }\n\n }\n\n emit Invoked(msg.sender, _target, _value, _data);\n\n }\n\n\n\n /**\n\n * @notice This method delegates the static call to a target contract if the data corresponds\n\n * to an enabled module, or logs the call otherwise.\n\n */\n\n fallback() external payable {\n\n address module = enabled[msg.sig];\n\n if (module == address(0)) {\n\n emit Received(msg.value, msg.sender, msg.data);\n\n } else {\n\n require(authorised[module], \"BW: must be an authorised module for static call\");\n\n\n\n // solhint-disable-next-line no-inline-assembly\n\n assembly {\n\n calldatacopy(0, 0, calldatasize())\n\n let result := staticcall(gas(), module, 0, calldatasize(), 0, 0)\n\n returndatacopy(0, 0, returndatasize())\n\n switch result\n\n case 0 {revert(0, returndatasize())}\n\n default {return (0, returndatasize())}\n\n }\n\n }\n\n }\n\n\n\n receive() external payable {\n\n }\n\n}\n\ncontract LockStorage is ILockStorage, Storage {\n\n\n\n struct LockStorageConfig {\n\n // the lock's release timestamp\n\n uint256 lock;\n\n // the module that set the last lock\n\n address locker;\n\n }\n\n \n\n // wallet specific storage\n\n mapping (address => LockStorageConfig) internal configs;\n\n\n\n // *************** External Functions ********************* //\n\n\n\n /**\n\n * @dev Lets an authorised module set the lock for a wallet.\n\n * @param _wallet The target wallet.\n\n * @param _locker The feature doing the lock.\n\n * @param _releaseAfter The epoch time at which the lock should automatically release.\n\n */\n\n function setLock(address _wallet, address _locker, uint256 _releaseAfter) external override onlyModule(_wallet) {\n\n configs[_wallet].lock = _releaseAfter;\n\n if (_releaseAfter != 0 && _locker != configs[_wallet].locker) {\n\n configs[_wallet].locker = _locker;\n\n }\n\n }\n\n\n\n /**\n\n * @dev Checks if the lock is set for a wallet.\n\n * @param _wallet The target wallet.\n\n * @return true if the lock is set for the wallet.\n\n */\n\n function isLocked(address _wallet) external view override returns (bool) {\n\n return configs[_wallet].lock > now;\n\n }\n\n\n\n /**\n\n * @dev Gets the time at which the lock of a wallet will release.\n\n * @param _wallet The target wallet.\n\n * @return the time at which the lock of a wallet will release, or zero if there is no lock set.\n\n */\n\n function getLock(address _wallet) external view override returns (uint256) {\n\n return configs[_wallet].lock;\n\n }\n\n\n\n /**\n\n * @dev Gets the address of the last module that modified the lock for a wallet.\n\n * @param _wallet The target wallet.\n\n * @return the address of the last module that modified the lock for a wallet.\n\n */\n\n function getLocker(address _wallet) external view override returns (address) {\n\n return configs[_wallet].locker;\n\n 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0":{"kind":"number","value":697,"string":"697"},"address":{"kind":"string","value":"0xf6c0df448081239c79f9cabfd0ce93ddc9b9a317"},"source_code":{"kind":"string","value":"pragma solidity 0.6.12;\n\ncontract Initializable {\n\n\n\n\n\n /**\n\n\n * @dev Indicates that the contract has been initialized.\n\n\n */\n\n\n bool private initialized;\n\n\n\n\n\n /**\n\n\n * @dev Indicates that the contract is in the process of being initialized.\n\n\n */\n\n\n bool private initializing;\n\n\n\n\n\n /**\n\n\n * @dev Modifier to use in the initializer function of a contract.\n\n\n */\n\n\n modifier initializer() {\n\n\n require(initializing || isConstructor() || !initialized, \"Contract instance has already been initialized\");\n\n\n\n\n\n bool isTopLevelCall = !initializing;\n\n\n if (isTopLevelCall) {\n\n\n initializing = true;\n\n\n initialized = true;\n\n\n }\n\n\n\n\n\n _;\n\n\n\n\n\n if (isTopLevelCall) {\n\n\n initializing = false;\n\n\n }\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Modifier to use in the initializer function of a contract when upgrade EVEN times.\n\n\n */\n\n\n modifier initializerEven() {\n\n\n require(initializing || isConstructor() || initialized, \"Contract instance has already been initialized EVEN times\");\n\n\n\n\n\n bool isTopLevelCall = !initializing;\n\n\n if (isTopLevelCall) {\n\n\n initializing = true;\n\n\n initialized = false;\n\n\n }\n\n\n\n\n\n _;\n\n\n\n\n\n if (isTopLevelCall) {\n\n\n initializing = false;\n\n\n }\n\n\n }\n\n\n\n\n\n /// @dev Returns true if and only if the function is running in the constructor\n\n\n function isConstructor() private view returns (bool) {\n\n\n // extcodesize checks the size of the code stored in an address, and\n\n\n // address returns the current address. Since the code is still not\n\n\n // deployed when running a constructor, any checks on its code size will\n\n\n // yield zero, making it an effective way to detect if a contract is\n\n\n // under construction or not.\n\n\n address self = address(this);\n\n\n uint256 cs;\n\n\n assembly { cs := extcodesize(self) }\n\n\n return cs == 0;\n\n\n }\n\n\n\n\n\n // Reserved storage space to allow for layout changes in the future.\n\n\n uint256[50] private ______gap;\n\n\n}\n\ncontract Governable is Initializable {\n\n\n address public governor;\n\n\n\n\n\n event GovernorshipTransferred(address indexed previousGovernor, address indexed newGovernor);\n\n\n\n\n\n /**\n\n\n * @dev Contract initializer.\n\n\n * called once by the factory at time of deployment\n\n\n */\n\n\n function initialize(address governor_) virtual public initializer {\n\n\n governor = governor_;\n\n\n emit GovernorshipTransferred(address(0), governor);\n\n\n }\n\n\n\n\n\n modifier governance() {\n\n\n require(msg.sender == governor);\n\n\n _;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Allows the current governor to relinquish control of the contract.\n\n\n * @notice Renouncing to governorship will leave the contract without an governor.\n\n\n * It will not be possible to call the functions with the `governance`\n\n\n * modifier anymore.\n\n\n */\n\n\n function renounceGovernorship() public governance {\n\n\n emit GovernorshipTransferred(governor, address(0));\n\n\n governor = address(0);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Allows the current governor to transfer control of the contract to a newGovernor.\n\n\n * @param newGovernor The address to transfer governorship to.\n\n\n */\n\n\n function transferGovernorship(address newGovernor) public governance {\n\n\n _transferGovernorship(newGovernor);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Transfers control of the contract to a newGovernor.\n\n\n * @param newGovernor The address to transfer governorship to.\n\n\n */\n\n\n function _transferGovernorship(address newGovernor) internal {\n\n\n require(newGovernor != address(0));\n\n\n emit GovernorshipTransferred(governor, newGovernor);\n\n\n governor = newGovernor;\n\n\n }\n\n\n}\n\ncontract Configurable is Governable {\n\n\n\n\n\n mapping (bytes32 => uint) internal config;\n\n\n \n\n\n function getConfig(bytes32 key) public view returns (uint) {\n\n\n return config[key];\n\n\n }\n\n\n function getConfig(bytes32 key, uint index) public view returns (uint) {\n\n\n return config[bytes32(uint(key) ^ index)];\n\n\n }\n\n\n function getConfig(bytes32 key, address addr) public view returns (uint) {\n\n\n return config[bytes32(uint(key) ^ uint(addr))];\n\n\n }\n\n\n\n\n\n function _setConfig(bytes32 key, uint value) internal {\n\n\n if(config[key] != value)\n\n\n config[key] = value;\n\n\n }\n\n\n function _setConfig(bytes32 key, uint index, uint value) internal {\n\n\n _setConfig(bytes32(uint(key) ^ index), value);\n\n\n }\n\n\n function _setConfig(bytes32 key, address addr, uint value) internal {\n\n\n _setConfig(bytes32(uint(key) ^ uint(addr)), value);\n\n\n }\n\n\n \n\n\n function setConfig(bytes32 key, uint value) external governance {\n\n\n _setConfig(key, value);\n\n\n }\n\n\n function setConfig(bytes32 key, uint index, uint value) external governance {\n\n\n _setConfig(bytes32(uint(key) ^ index), value);\n\n\n }\n\n\n function setConfig(bytes32 key, address addr, uint value) external governance {\n\n\n _setConfig(bytes32(uint(key) ^ uint(addr)), value);\n\n\n }\n\n\n}\n\ninterface Minter {\n\n\n event Minted(address indexed recipient, address reward_contract, uint minted);\n\n\n\n\n\n function token() external view returns (address);\n\n\n function controller() external view returns (address);\n\n\n function minted(address, address) external view returns (uint);\n\n\n function allowed_to_mint_for(address, address) external view returns (bool);\n\n\n \n\n\n function mint(address gauge) external;\n\n\n function mint_many(address[8] calldata gauges) external;\n\n\n function mint_for(address gauge, address _for) external;\n\n\n function toggle_approve_mint(address minting_user) external;\n\n\n}\n\ninterface LiquidityGauge {\n\n\n event Deposit(address indexed provider, uint value);\n\n\n event Withdraw(address indexed provider, uint value);\n\n\n event UpdateLiquidityLimit(address user, uint original_balance, uint original_supply, uint working_balance, uint working_supply);\n\n\n\n\n\n function user_checkpoint (address addr) external returns (bool);\n\n\n function claimable_tokens(address addr) external view returns (uint);\n\n\n function claimable_reward(address addr) external view returns (uint);\n\n\n function integrate_checkpoint() external view returns (uint);\n\n\n\n\n\n function kick(address addr) external;\n\n\n function set_approve_deposit(address addr, bool can_deposit) external;\n\n\n function deposit(uint _value) external;\n\n\n function deposit(uint _value, address addr) external;\n\n\n function withdraw(uint _value) external;\n\n\n function withdraw(uint _value, bool claim_rewards) external;\n\n\n function claim_rewards() external;\n\n\n function claim_rewards(address addr) external;\n\n\n\n\n\n function minter() external view returns (address);\n\n\n function crv_token() external view returns (address);\n\n\n function lp_token() external view returns (address);\n\n\n function controller() external view returns (address);\n\n\n function voting_escrow() external view returns (address);\n\n\n function balanceOf(address) external view returns (uint);\n\n\n function totalSupply() external view returns (uint);\n\n\n function future_epoch_time() external view returns (uint);\n\n\n function approved_to_deposit(address, address) external view returns (bool);\n\n\n function working_balances(address) external view returns (uint);\n\n\n function working_supply() external view returns (uint);\n\n\n function period() external view returns (int128);\n\n\n function period_timestamp(uint) external view returns (uint);\n\n\n function integrate_inv_supply(uint) external view returns (uint);\n\n\n function integrate_inv_supply_of(address) external view returns (uint);\n\n\n function integrate_checkpoint_of(address) external view returns (uint);\n\n\n function integrate_fraction(address) external view returns (uint);\n\n\n function inflation_rate() external view returns (uint);\n\n\n function reward_contract() external view returns (address);\n\n\n function rewarded_token() external view returns (address);\n\n\n function reward_integral() external view returns (uint);\n\n\n function reward_integral_for(address) external view returns (uint);\n\n\n function rewards_for(address) external view returns (uint);\n\n\n function claimed_rewards_for(address) external view returns (uint);\n\n\n}\n\ncontract SSimpleGauge is LiquidityGauge, Configurable {\n\n\n using SafeMath for uint;\n\n\n using TransferHelper for address;\n\n\n\n\n\n address override public minter;\n\n\n address override public crv_token;\n\n\n address override public lp_token;\n\n\n address override public controller;\n\n\n address override public voting_escrow;\n\n\n mapping(address => uint) override public balanceOf;\n\n\n uint override public totalSupply;\n\n\n uint override public future_epoch_time;\n\n\n \n\n\n // caller -> recipient -> can deposit?\n\n\n mapping(address => mapping(address => bool)) override public approved_to_deposit;\n\n\n \n\n\n mapping(address => uint) override public working_balances;\n\n\n uint override public working_supply;\n\n\n \n\n\n // The goal is to be able to calculate ∫(rate * balance / totalSupply dt) from 0 till checkpoint\n\n\n // All values are kept in units of being multiplied by 1e18\n\n\n int128 override public period;\n\n\n uint256[100000000000000000000000000000] override public period_timestamp;\n\n\n \n\n\n // 1e18 * ∫(rate(t) / totalSupply(t) dt) from 0 till checkpoint\n\n\n uint256[100000000000000000000000000000] override public integrate_inv_supply; // bump epoch when rate() changes\n\n\n \n\n\n // 1e18 * ∫(rate(t) / totalSupply(t) dt) from (last_action) till checkpoint\n\n\n mapping(address => uint) override public integrate_inv_supply_of;\n\n\n mapping(address => uint) override public integrate_checkpoint_of;\n\n\n \n\n\n // ∫(balance * rate(t) / totalSupply(t) dt) from 0 till checkpoint\n\n\n // Units: rate * t = already number of coins per address to issue\n\n\n mapping(address => uint) override public integrate_fraction;\n\n\n \n\n\n uint override public inflation_rate;\n\n\n \n\n\n // For tracking external rewards\n\n\n address override public reward_contract;\n\n\n address override public rewarded_token;\n\n\n \n\n\n uint override public reward_integral;\n\n\n mapping(address => uint) override public reward_integral_for;\n\n\n mapping(address => uint) override public rewards_for;\n\n\n mapping(address => uint) override public claimed_rewards_for;\n\n\n \n\n\n\n\n\n\tuint public span;\n\n\n\tuint public end;\n\n\n\n\n\n\tfunction initialize(address governor, address _minter, address _lp_token) public initializer {\n\n\n\t super.initialize(governor);\n\n\n\t \n\n\n\t minter = _minter;\n\n\n\t crv_token = Minter(_minter).token();\n\n\n\t lp_token = _lp_token;\n\n\n\t IERC20(lp_token).totalSupply(); // just check\n\n\n\t}\n\n\n \n\n\n function setSpan(uint _span, bool isLinear) virtual external governance {\n\n\n span = _span;\n\n\n if(isLinear)\n\n\n end = now + _span;\n\n\n else\n\n\n end = 0;\n\n\n }\n\n\n \n\n\n function kick(address addr) virtual override external {\n\n\n _checkpoint(addr, true);\n\n\n }\n\n\n \n\n\n function set_approve_deposit(address addr, bool can_deposit) virtual override external {\n\n\n approved_to_deposit[addr][msg.sender] = can_deposit;\n\n\n }\n\n\n \n\n\n function deposit(uint amount) virtual override external {\n\n\n deposit(amount, msg.sender);\n\n\n }\n\n\n function deposit(uint amount, address addr) virtual override public {\n\n\n require(addr == msg.sender || approved_to_deposit[msg.sender][addr], 'Not approved');\n\n\n\n\n\n _checkpoint(addr, true);\n\n\n \n\n\n _deposit(addr, amount);\n\n\n \n\n\n balanceOf[addr] = balanceOf[addr].add(amount);\n\n\n totalSupply = totalSupply.add(amount);\n\n\n \n\n\n emit Deposit(addr, amount);\n\n\n }\n\n\n function _deposit(address addr, uint amount) virtual internal {\n\n\n lp_token.safeTransferFrom(addr, address(this), amount);\n\n\n }\n\n\n \n\n\n function withdraw() virtual external {\n\n\n withdraw(balanceOf[msg.sender], true);\n\n\n }\n\n\n function withdraw(uint amount) virtual override external {\n\n\n withdraw(amount, true);\n\n\n }\n\n\n function withdraw(uint amount, bool claim_rewards) virtual override public {\n\n\n _checkpoint(msg.sender, claim_rewards);\n\n\n \n\n\n totalSupply = totalSupply.sub(amount);\n\n\n balanceOf[msg.sender] = balanceOf[msg.sender].sub(amount);\n\n\n \n\n\n _withdraw(msg.sender, amount);\n\n\n \n\n\n emit Withdraw(msg.sender, amount);\n\n\n }\n\n\n function _withdraw(address to, uint amount) virtual internal {\n\n\n lp_token.safeTransfer(to, amount);\n\n\n }\n\n\n \n\n\n function claimable_reward(address) virtual override public view returns (uint) {\n\n\n return 0;\n\n\n }\n\n\n\n\n\n function claim_rewards() virtual override public {\n\n\n return claim_rewards(msg.sender);\n\n\n }\n\n\n function claim_rewards(address) virtual override public {\n\n\n return;\n\n\n }\n\n\n function _checkpoint_rewards(address, bool) virtual internal {\n\n\n return;\n\n\n }\n\n\n \n\n\n function claimable_tokens(address addr) virtual override public view returns (uint amount) {\n\n\n if(span == 0 || totalSupply == 0)\n\n\n return 0;\n\n\n \n\n\n amount = SMinter(minter).quotas(address(this));\n\n\n amount = amount.mul(balanceOf[addr]).div(totalSupply);\n\n\n \n\n\n uint lasttime = integrate_checkpoint_of[addr];\n\n\n if(end == 0) { // isNonLinear, endless\n\n\n if(now.sub(lasttime) < span)\n\n\n amount = amount.mul(now.sub(lasttime)).div(span);\n\n\n }else if(now < end)\n\n\n amount = amount.mul(now.sub(lasttime)).div(end.sub(lasttime));\n\n\n else if(lasttime >= end)\n\n\n amount = 0;\n\n\n }\n\n\n \n\n\n function _checkpoint(address addr, uint amount) virtual internal {\n\n\n if(amount > 0) {\n\n\n integrate_fraction[addr] = integrate_fraction[addr].add(amount);\n\n\n \n\n\n address teamAddr = address(config['teamAddr']);\n\n\n uint teamRatio = config['teamRatio'];\n\n\n if(teamAddr != address(0) && teamRatio != 0)\n\n\n integrate_fraction[teamAddr] = integrate_fraction[teamAddr].add(amount.mul(teamRatio).div(1 ether));\n\n\n }\n\n\n }\n\n\n\n\n\n function _checkpoint(address addr, bool _claim_rewards) virtual internal {\n\n\n uint amount = claimable_tokens(addr);\n\n\n _checkpoint(addr, amount);\n\n\n _checkpoint_rewards(addr, _claim_rewards);\n\n\n \n\n\n integrate_checkpoint_of[addr] = now;\n\n\n }\n\n\n \n\n\n function user_checkpoint(address addr) virtual override external returns (bool) {\n\n\n _checkpoint(addr, true);\n\n\n return true;\n\n\n }\n\n\n\n\n\n function integrate_checkpoint() override external view returns (uint) {\n\n\n return now;\n\n\n }\n\n\n} \n\n\n\n\n\nc\n\n SExactGauge is LiquidityGauge, Configurable {\n\n\n using SafeMath for uint;\n\n\n using TransferHelper for address;\n\n\n \n\n\n bytes32 internal constant _devAddr_ = 'devAddr';\n\n\n bytes32 internal constant _devRatio_ = 'devRatio';\n\n\n bytes32 internal constant _ecoAddr_ = 'ecoAddr';\n\n\n bytes32 internal constant _ecoRatio_ = 'ecoRatio';\n\n\n bytes32 internal constant _claim_rewards_ = 'claim_rewards';\n\n\n \n\n\n address override public minter;\n\n\n address override public crv_token;\n\n\n address override public lp_token;\n\n\n address override public controller;\n\n\n address override public voting_escrow;\n\n\n mapping(address => uint) override public balanceOf;\n\n\n uint override public totalSupply;\n\n\n uint override public future_epoch_time;\n\n\n \n\n\n // caller -> recipient -> can deposit?\n\n\n mapping(address => mapping(address => bool)) override public approved_to_deposit;\n\n\n \n\n\n mapping(address => uint) override public working_balances;\n\n\n uint override public working_supply;\n\n\n \n\n\n // The goal is to be able to calculate ∫(rate * balance / totalSupply dt) from 0 till checkpoint\n\n\n // All values are kept in units of being multiplied by 1e18\n\n\n int128 override public period;\n\n\n uint256[100000000000000000000000000000] override public period_timestamp;\n\n\n \n\n\n // 1e18 * ∫(rate(t) / totalSupply(t) dt) from 0 till checkpoint\n\n\n uint256[100000000000000000000000000000] override public integrate_inv_supply; // bump epoch when rate() changes\n\n\n \n\n\n // 1e18 * ∫(rate(t) / totalSupply(t) dt) from (last_action) till checkpoint\n\n\n mapping(address => uint) override public integrate_inv_supply_of;\n\n\n mapping(address => uint) override public integrate_checkpoint_of;\n\n\n \n\n\n // ∫(balance * rate(t) / totalSupply(t) dt) from 0 till checkpoint\n\n\n // Units: rate * t = already number of coins per address to issue\n\n\n mapping(address => uint) override public integrate_fraction;\n\n\n \n\n\n uint override public inflation_rate;\n\n\n \n\n\n // For tracking external rewards\n\n\n address override public reward_contract;\n\n\n address override public rewarded_token;\n\n\n \n\n\n mapping(address => uint) public reward_integral_; // rewarded_token => reward_integral\n\n\n mapping(address => mapping(address => uint)) public reward_integral_for_; // recipient => rewarded_token => reward_integral_for\n\n\n mapping(address => mapping(address => uint)) public rewards_for_; \n\n\n mapping(address => mapping(address => uint)) public claimed_rewards_for_; \n\n\n\n\n\n\tuint public span;\n\n\n\tuint public end;\n\n\n\tmapping(address => uint) public sumMiningPerOf;\n\n\n\tuint public sumMiningPer;\n\n\n\tuint public bufReward;\n\n\n\tuint public lasttime;\n\n\n\t\n\n\n\tfunction initialize(address governor, address _minter, address _lp_token) public initializer {\n\n\n\t super.initialize(governor);\n\n\n\t \n\n\n\t minter = _minter;\n\n\n\t crv_token = Minter(_minter).token();\n\n\n\t lp_token = _lp_token;\n\n\n\t IERC20(lp_token).totalSupply(); // just check\n\n\n\t}\n\n\n \n\n\n function setSpan(uint _span, bool isLinear) virtual external governance {\n\n\n span = _span;\n\n\n if(isLinear)\n\n\n end = now + _span;\n\n\n else\n\n\n end = 0;\n\n\n lasttime = now;\n\n\n }\n\n\n \n\n\n function kick(address addr) virtual override external {\n\n\n _checkpoint(addr, true);\n\n\n }\n\n\n \n\n\n function set_approve_deposit(address addr, bool can_deposit) virtual override external {\n\n\n approved_to_deposit[addr][msg.sender] = can_deposit;\n\n\n }\n\n\n \n\n\n function deposit(uint amount) virtual override external {\n\n\n deposit(amount, msg.sender);\n\n\n }\n\n\n function deposit(uint amount, address addr) virtual override public {\n\n\n require(addr == msg.sender || approved_to_deposit[msg.sender][addr], 'Not approved');\n\n\n\n\n\n _checkpoint(addr, config[_claim_rewards_] == 0 ? false : true);\n\n\n \n\n\n _deposit(addr, amount);\n\n\n\n\n\n balanceOf[msg.sender] = balanceOf[msg.sender].add(amount);\n\n\n totalSupply = totalSupply.add(amount);\n\n\n \n\n\n emit Deposit(msg.sender, amount);\n\n\n }\n\n\n function _deposit(address addr, uint amount) virtual internal {\n\n\n lp_token.safeTransferFrom(addr, address(this), amount);\n\n\n }\n\n\n \n\n\n function withdraw() virtual external {\n\n\n withdraw(balanceOf[msg.sender]);\n\n\n }\n\n\n function withdraw(uint amount) virtual override public {\n\n\n withdraw(amount, config[_claim_rewards_] == 0 ? false : true);\n\n\n }\n\n\n function withdraw(uint amount, bool _claim_rewards) virtual override public {\n\n\n _checkpoint(msg.sender, _claim_rewards);\n\n\n \n\n\n totalSupply = totalSupply.sub(amount);\n\n\n balanceOf[msg.sender] = balanceOf[msg.sender].sub(amount);\n\n\n \n\n\n _withdraw(msg.sender, amount);\n\n\n \n\n\n emit Withdraw(msg.sender, amount);\n\n\n }\n\n\n function _withdraw(address to, uint amount) virtual internal {\n\n\n lp_token.safeTransfer(to, amount);\n\n\n }\n\n\n \n\n\n function claimable_reward(address addr) virtual override public view returns (uint) {\n\n\n addr;\n\n\n return 0;\n\n\n }\n\n\n\n\n\n function claim_rewards() virtual override public {\n\n\n return claim_rewards(msg.sender);\n\n\n }\n\n\n function claim_rewards(address) virtual override public {\n\n\n return;\n\n\n }\n\n\n function _checkpoint_rewards(address, bool) virtual internal {\n\n\n return;\n\n\n }\n\n\n \n\n\n function claimable_tokens(address addr) virtual override public view returns (uint) {\n\n\n return _claimable_tokens(addr, claimableDelta(), sumMiningPer, sumMiningPerOf[addr]);\n\n\n }\n\n\n function _claimable_tokens(address addr, uint delta, uint sumPer, uint lastSumPer) virtual internal view returns (uint amount) {\n\n\n if(span == 0 || totalSupply == 0)\n\n\n return 0;\n\n\n \n\n\n amount = sumPer.sub(lastSumPer);\n\n\n amount = amount.add(delta.mul(1 ether).div(totalSupply));\n\n\n amount = amount.mul(balanceOf[addr]).div(1 ether);\n\n\n }\n\n\n function claimableDelta() virtual internal view returns(uint amount) {\n\n\n amount = SMinter(minter).quotas(address(this)).sub(bufReward);\n\n\n\n\n\n if(end == 0) { // isNonLinear, endless\n\n\n if(now.sub(lasttime) < span)\n\n\n amount = amount.mul(now.sub(lasttime)).div(span);\n\n\n }else if(now < end)\n\n\n amount = amount.mul(now.sub(lasttime)).div(end.sub(lasttime));\n\n\n else if(lasttime >= end)\n\n\n amount = 0;\n\n\n }\n\n\n\n\n\n function _checkpoint(address addr, uint amount) virtual internal {\n\n\n if(amount > 0) {\n\n\n integrate_fraction[addr] = integrate_fraction[addr].add(amount);\n\n\n \n\n\n addr = address(config[_devAddr_]);\n\n\n uint ratio = config[_devRatio_];\n\n\n if(addr != address(0) && ratio != 0)\n\n\n integrate_fraction[addr] = integrate_fraction[addr].add(amount.mul(ratio).div(1 ether));\n\n\n\n\n\n addr = address(config[_ecoAddr_]);\n\n\n ratio = config[_ecoRatio_];\n\n\n if(addr != address(0) && ratio != 0)\n\n\n integrate_fraction[addr] = integrate_fraction[addr].add(amount.mul(ratio).div(1 ether));\n\n\n }\n\n\n }\n\n\n \n\n\n function _checkpoint(address addr, bool _claim_rewards) virtual internal {\n\n\n if(span == 0 || totalSupply == 0)\n\n\n return;\n\n\n \n\n\n uint delta = claimableDelta();\n\n\n uint amount = _claimable_tokens(addr, delta, sumMiningPer, sumMiningPerOf[addr]);\n\n\n \n\n\n if(delta != amount)\n\n\n bufReward = bufReward.add(delta).sub(amount);\n\n\n if(delta > 0)\n\n\n sumMiningPer = sumMiningPer.add(delta.mul(1 ether).div(totalSupply));\n\n\n if(sumMiningPerOf[addr] != sumMiningPer)\n\n\n sumMiningPerOf[addr] = sumMiningPer;\n\n\n lasttime = now;\n\n\n\n\n\n _checkpoint(addr, amount);\n\n\n _checkpoint_rewards(addr, _claim_rewards);\n\n\n }\n\n\n\n\n\n function user_checkpoint(address addr) virtual override external returns (bool) {\n\n\n _checkpoint(addr, config[_claim_rewards_] == 0 ? false : true);\n\n\n return true;\n\n\n }\n\n\n\n\n\n function integrate_checkpoint() override external view returns (uint) {\n\n\n return lasttime;\n\n\n }\n\n\n \n\n\n function reward_integral() virtual override external view returns (uint) {\n\n\n return reward_integral_[rewarded_token];\n\n\n }\n\n\n \n\n\n function reward_integral_for(address addr) virtual override external view returns (uint) {\n\n\n return reward_integral_for_[addr][rewarded_token];\n\n\n }\n\n\n \n\n\n function rewards_for(address addr) virtual override external view returns (uint) {\n\n\n return rewards_for_[addr][rewarded_token];\n\n\n }\n\n\n \n\n\n function claimed_rewards_for(address addr) virtual override external view returns (uint) {\n\n\n return claimed_rewards_for_[addr][rewarded_token];\n\n\n }\n\n\n} \n\n\n\n\n\n\n\n\ncontra\n\nuge is SExactGauge {\n\n\n\taddress[] public rewards;\n\n\n\t//mapping(address => mapping(address =>uint)) internal sumRewardPerOf_; // recipient => rewarded_token => can sumRewardPerOf // obsolete, instead of reward_integral_\n\n\n\t//mapping(address => uint) internal sumRewardPer_; // rewarded_token => can sumRewardPerOf // obsolete, instead of reward_integral_for_\n\n\n\n\n\n\tfunction initialize(address governor, address _minter, address _lp_token, address _nestGauge, address[] memory _moreRewards) public initializer {\n\n\n\t super.initialize(governor, _minter, _lp_token);\n\n\n\t \n\n\n\t reward_contract = _nestGauge;\n\n\n\t rewarded_token = LiquidityGauge(_nestGauge).crv_token();\n\n\n\t rewards = _moreRewards;\n\n\n\t rewards.push(rewarded_token);\n\n\n\t address rewarded_token2 = LiquidityGauge(_nestGauge).rewarded_token();\n\n\n\t if(rewarded_token2 != address(0))\n\n\n \t rewards.push(rewarded_token2);\n\n\n\t \n\n\n\t LiquidityGauge(_nestGauge).integrate_checkpoint(); // just check\n\n\n\t for(uint i=0; i<_moreRewards.length; i++)\n\n\n\t IERC20(_moreRewards[i]).totalSupply(); // just check\n\n\n\t}\n\n\n \n\n\n function _deposit(address from, uint amount) virtual override internal {\n\n\n super._deposit(from, amount); // lp_token.safeTransferFrom(from, address(this), amount);\n\n\n lp_token.safeApprove(reward_contract, amount);\n\n\n LiquidityGauge(reward_contract).deposit(amount);\n\n\n }\n\n\n\n\n\n function _withdraw(address to, uint amount) virtual override internal {\n\n\n LiquidityGauge(reward_contract).withdraw(amount);\n\n\n super._withdraw(to, amount); // lp_token.safeTransfer(to, amount);\n\n\n }\n\n\n \n\n\n function claim_rewards(address to) virtual override public {\n\n\n if(span == 0 || totalSupply == 0)\n\n\n return;\n\n\n \n\n\n _checkpoint_rewards(to, true);\n\n\n \n\n\n for(uint i=0; i<rewards.length; i++) {\n\n\n uint amount = rewards_for_[to][rewards[i]].sub(claimed_rewards_for_[to][rewards[i]]);\n\n\n if(amount > 0) {\n\n\n rewards[i].safeTransfer(to, amount);\n\n\n claimed_rewards_for_[to][rewards[i]] = rewards_for_[to][rewards[i]];\n\n\n }\n\n\n }\n\n\n }\n\n\n\n\n\n function _checkpoint_rewards(address addr, bool _claim_rewards) virtual override internal {\n\n\n if(span == 0 || totalSupply == 0)\n\n\n return;\n\n\n \n\n\n uint[] memory drs = new uint[](rewards.length);\n\n\n \n\n\n if(_claim_rewards) {\n\n\n for(uint i=0; i<drs.length; i++)\n\n\n drs[i] = IERC20(rewards[i]).balanceOf(address(this));\n\n\n \n\n\n Minter(LiquidityGauge(reward_contract).minter()).mint(reward_contract);\n\n\n LiquidityGauge(reward_contract).claim_rewards();\n\n\n \n\n\n for(uint i=0; i<drs.length; i++)\n\n\n drs[i] = IERC20(rewards[i]).balanceOf(address(this)).sub(drs[i]);\n\n\n }\n\n\n\n\n\n for(uint i=0; i<drs.length; i++) {\n\n\n uint amount = _claimable_tokens(addr, drs[i], reward_integral_[rewards[i]], reward_integral_for_[msg.sender][rewards[i]]);\n\n\n if(amount > 0)\n\n\n rewards_for_[addr][rewards[i]] = rewards_for_[addr][rewards[i]].add(amount);\n\n\n \n\n\n if(drs[i] > 0)\n\n\n reward_integral_[rewards[i]] = reward_integral_[rewards[i]].add(drs[i].mul(1 ether).div(totalSupply));\n\n\n if(reward_integral_for_[addr][rewards[i]] != reward_integral_[rewards[i]])\n\n\n reward_integral_for_[addr][rewards[i]] = reward_integral_[rewards[i]];\n\n\n }\n\n\n }\n\n\n\n\n\n function claimable_reward(address addr) virtual override public view returns (uint) {\n\n\n //uint delta = LiquidityGauge(reward_contract).claimable_tokens(address(this)); // Error: Mutable call in static context\n\n\n uint delta = LiquidityGauge(reward_contract).integrate_fraction(address(this)).sub(Minter(LiquidityGauge(reward_contract).minter()).minted(address(this), reward_contract));\n\n\n return _claimable_tokens(addr, delta, reward_integral_[rewarded_token], reward_integral_for_[addr][rewarded_token]);\n\n\n }\n\n\n \n\n\n function claimable_reward2(address addr) virtual public view returns (uint) {\n\n\n uint delta = LiquidityGauge(reward_contract).claimable_reward(address(this));\n\n\n address reward2 = LiquidityGauge(reward_contract).rewarded_token();\n\n\n return _claimable_tokens(addr, delta, reward_integral_[reward2], reward_integral_for_[addr][reward2]);\n\n\n } \n\n\n\n\n\n function claimable_reward(address addr, address reward) virtual public view returns (uint) {\n\n\n return _claimable_tokens(addr, 0, reward_integral_[reward], reward_integral_for_[addr][reward]);\n\n\n }\n\n\n \n\n\n function claimed_rewards_for2(address addr) virtual public view returns (uint) {\n\n\n return claimed_rewards_for_[addr][LiquidityGauge(reward_contract).rewarded_token()];\n\n\n }\n\n\n \n\n\n function rewards_for2(address addr) virtual public view returns (uint) {\n\n\n return rewards_for_[addr][LiquidityGauge(reward_contract).rewarded_token()];\n\n\n }\n\n\n \n\n\n}\n\n\n\n\n\n\n\n\ncontrac\n\n is Minter, Configurable {\n\n\n using SafeMath for uint;\n\n\n using Address for address payable;\n\n\n using TransferHelper for address;\n\n\n \n\n\n\tbytes32 internal constant _allowContract_ = 'allowContract';\n\n\n\tbytes32 internal constant _allowlist_ = 'allowlist';\n\n\n\tbytes32 internal constant _blocklist_ = 'blocklist';\n\n\n\n\n\n address override public token;\n\n\n address override public controller;\n\n\n mapping(address => mapping(address => uint)) override public minted; // user => reward_contract => value\n\n\n mapping(address => mapping(address => bool)) override public allowed_to_mint_for; // minter => user => can mint?\n\n\n mapping(address => uint) public quotas; // reward_contract => quota;\n\n\n\n\n\n function initialize(address governor, address token_) public initializer {\n\n\n super.initialize(governor);\n\n\n token = token_;\n\n\n }\n\n\n \n\n\n function setGaugeQuota(address gauge, uint quota) public governance {\n\n\n quotas[gauge] = quota;\n\n\n }\n\n\n \n\n\n function mint(address gauge) virtual override public {\n\n\n mint_for(gauge, msg.sender); \n\n\n }\n\n\n \n\n\n function mint_many(address[8] calldata gauges) virtual override external {\n\n\n for(uint i=0; i<gauges.length; i++)\n\n\n mint(gauges[i]);\n\n\n }\n\n\n \n\n\n function mint_for(address gauge, address _for) virtual override public {\n\n\n require(_for == msg.sender || allowed_to_mint_for[msg.sender][_for], 'Not approved');\n\n\n require(quotas[gauge] > 0, 'No quota');\n\n\n \n\n\n require(getConfig(_blocklist_, msg.sender) == 0, 'In blocklist');\n\n\n bool isContract = msg.sender.isContract();\n\n\n require(!isContract || config[_allowContract_] != 0 || getConfig(_allowlist_, msg.sender) != 0, 'No allowContract');\n\n\n\n\n\n LiquidityGauge(gauge).user_checkpoint(_for);\n\n\n uint total_mint = LiquidityGauge(gauge).integrate_fraction(_for);\n\n\n uint to_mint = total_mint.sub(minted[_for][gauge]);\n\n\n \n\n\n if(to_mint != 0) {\n\n\n quotas[gauge] = quotas[gauge].sub(to_mint);\n\n\n token.safeTransfer(_for, to_mint);\n\n\n minted[_for][gauge] = total_mint;\n\n\n \n\n\n emit Minted(_for, gauge, total_mint);\n\n\n }\n\n\n }\n\n\n \n\n\n function toggle_approve_mint(address minting_user) virtual override external {\n\n\n allowed_to_mint_for[minting_user][msg.sender] = !allowed_to_mint_for[minting_user][msg.sender];\n\n\n }\n\n\n}\n\n\n\n\n\n/*\n\n\n// he\n\nabstract contract Context {\n\n\n function _msgSender() internal view virtual returns (address payable) {\n\n\n return msg.sender;\n\n\n }\n\n\n\n\n\n function _msgData() internal view virtual returns (bytes memory) {\n\n\n this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691\n\n\n return msg.data;\n\n\n }\n\n\n}\n\nlibrary SafeMath {\n\n\n /**\n\n\n * @dev Returns the addition of two unsigned integers, reverting on\n\n\n * overflow.\n\n\n *\n\n\n * Counterpart to Solidity's `+` operator.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - Addition cannot overflow.\n\n\n */\n\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n\n\n uint256 c = a + b;\n\n\n require(c >= a, \"SafeMath: addition overflow\");\n\n\n\n\n\n return c;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the subtraction of two unsigned integers, reverting on\n\n\n * overflow (when the result is negative).\n\n\n *\n\n\n * Counterpart to Solidity's `-` operator.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - Subtraction cannot overflow.\n\n\n */\n\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n\n\n return sub(a, b, \"SafeMath: subtraction overflow\");\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the subtraction of two unsigned integers, reverting with custom message on\n\n\n * overflow (when the result is negative).\n\n\n *\n\n\n * Counterpart to Solidity's `-` operator.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - Subtraction cannot overflow.\n\n\n */\n\n\n function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n\n require(b <= a, errorMessage);\n\n\n uint256 c = a - b;\n\n\n\n\n\n return c;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the multiplication of two unsigned integers, reverting on\n\n\n * overflow.\n\n\n *\n\n\n * Counterpart to Solidity's `*` operator.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - Multiplication cannot overflow.\n\n\n */\n\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n\n\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n\n\n // benefit is lost if 'b' is also tested.\n\n\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n\n\n if (a == 0) {\n\n\n return 0;\n\n\n }\n\n\n\n\n\n uint256 c = a * b;\n\n\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n\n\n\n\n return c;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the integer division of two unsigned integers. Reverts on\n\n\n * division by zero. The result is rounded towards zero.\n\n\n *\n\n\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n\n\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n\n\n * uses an invalid opcode to revert (consuming all remaining gas).\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - The divisor cannot be zero.\n\n\n */\n\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n\n\n return div(a, b, \"SafeMath: division by zero\");\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the integer division of two unsigned integers. Reverts with custom message on\n\n\n * division by zero. The result is rounded towards zero.\n\n\n *\n\n\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n\n\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n\n\n * uses an invalid opcode to revert (consuming all remaining gas).\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - The divisor cannot be zero.\n\n\n */\n\n\n function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n\n require(b > 0, errorMessage);\n\n\n uint256 c = a / b;\n\n\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n\n\n\n\n return c;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n\n\n * Reverts when dividing by zero.\n\n\n *\n\n\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n\n\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n\n\n * invalid opcode to revert (consuming all remaining gas).\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - The divisor cannot be zero.\n\n\n */\n\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n\n\n return mod(a, b, \"SafeMath: modulo by zero\");\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n\n\n * Reverts with custom message when dividing by zero.\n\n\n *\n\n\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n\n\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n\n\n * invalid opcode to revert (consuming all remaining gas).\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - The divisor cannot be zero.\n\n\n */\n\n\n function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n\n\n require(b != 0, errorMessage);\n\n\n return a % b;\n\n\n }\n\n\n \n\n\n\tfunction sqrt(uint x)public pure returns(uint y) {\n\n\n uint z = (x + 1) / 2;\n\n\n y = x;\n\n\n while (z < y) {\n\n\n y = z;\n\n\n z = (x / z + z) / 2;\n\n\n }\n\n\n }\n\n\n}\n\nlibrary Address {\n\n\n /**\n\n\n * @dev Returns true if `account` is a contract.\n\n\n *\n\n\n * [IMPORTANT]\n\n\n * ====\n\n\n * It is unsafe to assume that an address for which this function returns\n\n\n * false is an externally-owned account (EOA) and not a contract.\n\n\n *\n\n\n * Among others, `isContract` will return false for the following\n\n\n * types of addresses:\n\n\n *\n\n\n * - an externally-owned account\n\n\n * - a contract in construction\n\n\n * - an address where a contract will be created\n\n\n * - an address where a contract lived, but was destroyed\n\n\n * ====\n\n\n */\n\n\n function isContract(address account) internal view returns (bool) {\n\n\n // This method relies in extcodesize, which returns 0 for contracts in\n\n\n // construction, since the code is only stored at the end of the\n\n\n // constructor execution.\n\n\n\n\n\n uint256 size;\n\n\n // solhint-disable-next-line no-inline-assembly\n\n\n assembly { size := extcodesize(account) }\n\n\n return size > 0;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n\n\n * `recipient`, forwarding all available gas and reverting on errors.\n\n\n *\n\n\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n\n\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n\n\n * imposed by `transfer`, making them unable to receive funds via\n\n\n * `transfer`. {sendValue} removes this limitation.\n\n\n *\n\n\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n\n\n *\n\n\n * IMPORTANT: because control is transferred to `recipient`, care must be\n\n\n * taken to not create reentrancy vulnerabilities. Consider using\n\n\n * {ReentrancyGuard} or the\n\n\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n\n\n */\n\n\n function sendValue(address payable recipient, uint256 amount) internal {\n\n\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n\n\n\n\n // solhint-disable-next-line avoid-low-level-calls, avoid-call-value\n\n\n (bool success, ) = recipient.call{ value: amount }(\"\");\n\n\n require(success, \"Address: unable to send value, recipient may have reverted\");\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Performs a Solidity function call using a low level `call`. A\n\n\n * plain`call` is an unsafe replacement for a function call: use this\n\n\n * function instead.\n\n\n *\n\n\n * If `target` reverts with a revert reason, it is bubbled up by this\n\n\n * function (like regular Solidity function calls).\n\n\n *\n\n\n * Returns the raw returned data. To convert to the expected return value,\n\n\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `target` must be a contract.\n\n\n * - calling `target` with `data` must not revert.\n\n\n *\n\n\n * _Available since v3.1._\n\n\n */\n\n\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n\n\n return functionCall(target, data, \"Address: low-level call failed\");\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n\n\n * `errorMessage` as a fallback revert reason when `target` reverts.\n\n\n *\n\n\n * _Available since v3.1._\n\n\n */\n\n\n function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {\n\n\n return _functionCallWithValue(target, data, 0, errorMessage);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n\n\n * but also transferring `value` wei to `target`.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - the calling contract must have an ETH balance of at least `value`.\n\n\n * - the called Solidity function must be `payable`.\n\n\n *\n\n\n * _Available since v3.1._\n\n\n */\n\n\n function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n\n\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n\n\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n\n\n *\n\n\n * _Available since v3.1._\n\n\n */\n\n\n function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {\n\n\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n\n\n return _functionCallWithValue(target, data, value, errorMessage);\n\n\n }\n\n\n\n\n\n function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {\n\n\n require(isContract(target), \"Address: call to non-contract\");\n\n\n\n\n\n // solhint-disable-next-line avoid-low-level-calls\n\n\n (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);\n\n\n if (success) {\n\n\n return returndata;\n\n\n } else {\n\n\n // Look for revert reason and bubble it up if present\n\n\n if (returndata.length > 0) {\n\n\n // The easiest way to bubble the revert reason is using memory via assembly\n\n\n\n\n\n // solhint-disable-next-line no-inline-assembly\n\n\n assembly {\n\n\n let returndata_size := mload(returndata)\n\n\n revert(add(32, returndata), returndata_size)\n\n\n }\n\n\n } else {\n\n\n revert(errorMessage);\n\n\n }\n\n\n }\n\n\n }\n\n\n}\n\ninterface IERC20 {\n\n\n /**\n\n\n * @dev Returns the amount of tokens in existence.\n\n\n */\n\n\n function totalSupply() external view returns (uint256);\n\n\n\n\n\n /**\n\n\n * @dev Returns the amount of tokens owned by `account`.\n\n\n */\n\n\n function balanceOf(address account) external view returns (uint256);\n\n\n\n\n\n /**\n\n\n * @dev Moves `amount` tokens from the caller's account to `recipient`.\n\n\n *\n\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n\n *\n\n\n * Emits a {Transfer} event.\n\n\n */\n\n\n function transfer(address recipient, uint256 amount) external returns (bool);\n\n\n\n\n\n /**\n\n\n * @dev Returns the remaining number of tokens that `spender` will be\n\n\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n\n\n * zero by default.\n\n\n *\n\n\n * This value changes when {approve} or {transferFrom} are called.\n\n\n */\n\n\n function allowance(address owner, address spender) external view returns (uint256);\n\n\n\n\n\n /**\n\n\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n\n\n *\n\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n\n *\n\n\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n\n\n * that someone may use both the old and the new allowance by unfortunate\n\n\n * transaction ordering. One possible solution to mitigate this race\n\n\n * condition is to first reduce the spender's allowance to 0 and set the\n\n\n * desired value afterwards:\n\n\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n\n\n *\n\n\n * Emits an {Approval} event.\n\n\n */\n\n\n function approve(address spender, uint256 amount) external returns (bool);\n\n\n\n\n\n /**\n\n\n * @dev Moves `amount` tokens from `sender` to `recipient` using the\n\n\n * allowance mechanism. `amount` is then deducted from the caller's\n\n\n * allowance.\n\n\n *\n\n\n * Returns a boolean value indicating whether the operation succeeded.\n\n\n *\n\n\n * Emits a {Transfer} event.\n\n\n */\n\n\n function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);\n\n\n\n\n\n /**\n\n\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n\n\n * another (`to`).\n\n\n *\n\n\n * Note that `value` may be zero.\n\n\n */\n\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n\n\n\n\n /**\n\n\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n\n\n * a call to {approve}. `value` is the new allowance.\n\n\n */\n\n\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n\n}\n\ncontract ERC20 is Context, IERC20 {\n\n\n using SafeMath for uint256;\n\n\n using Address for address;\n\n\n\n\n\n mapping (address => uint256) public _balances;\n\n\n\n\n\n mapping (address => mapping (address => uint256)) internal _allowances;\n\n\n\n\n\n uint256 public _totalSupply;\n\n\n\n\n\n string internal _name;\n\n\n string internal _symbol;\n\n\n uint8 internal _decimals;\n\n\n\n\n\n /**\n\n\n * @dev Sets the values for {name} and {symbol}, initializes {decimals} with\n\n\n * a default value of 18.\n\n\n *\n\n\n * To select a different value for {decimals}, use {_setupDecimals}.\n\n\n *\n\n\n * All three of these values are immutable: they can only be set once during\n\n\n * construction.\n\n\n */\n\n\n constructor (string memory name, string memory symbol) public {\n\n\n _name = name;\n\n\n _symbol = symbol;\n\n\n _decimals = 18;\n\n\n }\n\n\n \n\n\n /**\n\n\n * @dev Returns the name of the token.\n\n\n */\n\n\n function name() public view returns (string memory) {\n\n\n return _name;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the symbol of the token, usually a shorter version of the\n\n\n * name.\n\n\n */\n\n\n function symbol() public view returns (string memory) {\n\n\n return _symbol;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Returns the number of decimals used to get its user representation.\n\n\n * For example, if `decimals` equals `2`, a balance of `505` tokens should\n\n\n * be displayed to a user as `5,05` (`505 / 10 ** 2`).\n\n\n *\n\n\n * Tokens usually opt for a value of 18, imitating the relationship between\n\n\n * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is\n\n\n * called.\n\n\n *\n\n\n * NOTE: This information is only used for _display_ purposes: it in\n\n\n * no way affects any of the arithmetic of the contract, including\n\n\n * {IERC20-balanceOf} and {IERC20-transfer}.\n\n\n */\n\n\n function decimals() public view returns (uint8) {\n\n\n return _decimals;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev See {IERC20-totalSupply}.\n\n\n */\n\n\n function totalSupply() public view virtual override returns (uint256) {\n\n\n return _totalSupply;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev See {IERC20-balanceOf}.\n\n\n */\n\n\n function balanceOf(address account) public view virtual override returns (uint256) {\n\n\n return _balances[account];\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev See {IERC20-transfer}.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `recipient` cannot be the zero address.\n\n\n * - the caller must have a balance of at least `amount`.\n\n\n */\n\n\n function transfer(address recipient, uint256 amount) public virtual override returns (bool) {\n\n\n _transfer(_msgSender(), recipient, amount);\n\n\n return true;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev See {IERC20-allowance}.\n\n\n */\n\n\n function allowance(address owner, address spender) public view virtual override returns (uint256) {\n\n\n return _allowances[owner][spender];\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev See {IERC20-approve}.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `spender` cannot be the zero address.\n\n\n */\n\n\n function approve(address spender, uint256 amount) public virtual override returns (bool) {\n\n\n _approve(_msgSender(), spender, amount);\n\n\n return true;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev See {IERC20-transferFrom}.\n\n\n *\n\n\n * Emits an {Approval} event indicating the updated allowance. This is not\n\n\n * required by the EIP. See the note at the beginning of {ERC20};\n\n\n *\n\n\n * Requirements:\n\n\n * - `sender` and `recipient` cannot be the zero address.\n\n\n * - `sender` must have a balance of at least `amount`.\n\n\n * - the caller must have allowance for ``sender``'s tokens of at least\n\n\n * `amount`.\n\n\n */\n\n\n function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {\n\n\n _transfer(sender, recipient, amount);\n\n\n _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, \"ERC20: transfer amount exceeds allowance\"));\n\n\n return true;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Atomically increases the allowance granted to `spender` by the caller.\n\n\n *\n\n\n * This is an alternative to {approve} that can be used as a mitigation for\n\n\n * problems described in {IERC20-approve}.\n\n\n *\n\n\n * Emits an {Approval} event indicating the updated allowance.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `spender` cannot be the zero address.\n\n\n */\n\n\n function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {\n\n\n _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));\n\n\n return true;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Atomically decreases the allowance granted to `spender` by the caller.\n\n\n *\n\n\n * This is an alternative to {approve} that can be used as a mitigation for\n\n\n * problems described in {IERC20-approve}.\n\n\n *\n\n\n * Emits an {Approval} event indicating the updated allowance.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `spender` cannot be the zero address.\n\n\n * - `spender` must have allowance for the caller of at least\n\n\n * `subtractedValue`.\n\n\n */\n\n\n function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {\n\n\n _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, \"ERC20: decreased allowance below zero\"));\n\n\n return true;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Moves tokens `amount` from `sender` to `recipient`.\n\n\n *\n\n\n * This is internal function is equivalent to {transfer}, and can be used to\n\n\n * e.g. implement automatic token fees, slashing mechanisms, etc.\n\n\n *\n\n\n * Emits a {Transfer} event.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `sender` cannot be the zero address.\n\n\n * - `recipient` cannot be the zero address.\n\n\n * - `sender` must have a balance of at least `amount`.\n\n\n */\n\n\n function _transfer(address sender, address recipient, uint256 amount) internal virtual {\n\n\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n\n\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n\n\n\n\n _beforeTokenTransfer(sender, recipient, amount);\n\n\n\n\n\n _balances[sender] = _balances[sender].sub(amount, \"ERC20: transfer amount exceeds balance\");\n\n\n _balances[recipient] = _balances[recipient].add(amount);\n\n\n emit Transfer(sender, recipient, amount);\n\n\n }\n\n\n\n\n\n /** @dev Creates `amount` tokens and assigns them to `account`, increasing\n\n\n * the total supply.\n\n\n *\n\n\n * Emits a {Transfer} event with `from` set to the zero address.\n\n\n *\n\n\n * Requirements\n\n\n *\n\n\n * - `to` cannot be the zero address.\n\n\n */\n\n\n function _mint(address account, uint256 amount) internal virtual {\n\n\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n\n\n\n\n _beforeTokenTransfer(address(0), account, amount);\n\n\n\n\n\n _totalSupply = _totalSupply.add(amount);\n\n\n _balances[account] = _balances[account].add(amount);\n\n\n emit Transfer(address(0), account, amount);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Destroys `amount` tokens from `account`, reducing the\n\n\n * total supply.\n\n\n *\n\n\n * Emits a {Transfer} event with `to` set to the zero address.\n\n\n *\n\n\n * Requirements\n\n\n *\n\n\n * - `account` cannot be the zero address.\n\n\n * - `account` must have at least `amount` tokens.\n\n\n */\n\n\n function _burn(address account, uint256 amount) internal virtual {\n\n\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n\n\n\n\n _beforeTokenTransfer(account, address(0), amount);\n\n\n\n\n\n _balances[account] = _balances[account].sub(amount, \"ERC20: burn amount exceeds balance\");\n\n\n _totalSupply = _totalSupply.sub(amount);\n\n\n emit Transfer(account, address(0), amount);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens.\n\n\n *\n\n\n * This is internal function is equivalent to `approve`, and can be used to\n\n\n * e.g. set automatic allowances for certain subsystems, etc.\n\n\n *\n\n\n * Emits an {Approval} event.\n\n\n *\n\n\n * Requirements:\n\n\n *\n\n\n * - `owner` cannot be the zero address.\n\n\n * - `spender` cannot be the zero address.\n\n\n */\n\n\n function _approve(address owner, address spender, uint256 amount) internal virtual {\n\n\n require(owner != address(0), \"ERC20: approve from the zero address\");\n\n\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n\n\n\n\n _allowances[owner][spender] = amount;\n\n\n emit Approval(owner, spender, amount);\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Sets {decimals} to a value other than the default one of 18.\n\n\n *\n\n\n * WARNING: This function should only be called from the constructor. Most\n\n\n * applications that interact with token contracts will not expect\n\n\n * {decimals} to ever change, and may work incorrectly if it does.\n\n\n */\n\n\n function _setupDecimals(uint8 decimals_) internal {\n\n\n _decimals = decimals_;\n\n\n }\n\n\n\n\n\n /**\n\n\n * @dev Hook that is called before any transfer of tokens. This includes\n\n\n * minting and burning.\n\n\n *\n\n\n * Calling conditions:\n\n\n *\n\n\n * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n\n\n * will be to transferred to `to`.\n\n\n * - when `from` is zero, `amount` tokens will be minted for `to`.\n\n\n * - when `to` is zero, `amount` of ``from``'s tokens will be burned.\n\n\n * - `from` and `to` are never both zero.\n\n\n *\n\n\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n\n\n */\n\n\n function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { }\n\n\n \n\n\n}\n\ncontract SfgToken is ERC20 {\n\n\n\n\n\n\tconstructor(address SfgFarm) ERC20(\"Stable Finance Governance Token\", \"SFG\") public {\n\n\n\t\tuint8 decimals = 18;\n\n\n\t\t_setupDecimals(decimals);\n\n\n\t\t\n\n\n\t\t_mint(SfgFarm, 21000000 * 10 ** uint256(decimals)); // 100%, 21000000\n\n\n\t}\n\n\n}\n\ncontract SfyToken is ERC20 {\n\n\n\n\n\n\tconstructor(address SfyFarm) ERC20(\"Stable Finance Yield Token\", \"SFY\") public {\n\n\n\t\tuint8 decimals = 18;\n\n\n\t\t_setupDecimals(decimals);\n\n\n\t\t\n\n\n\t\t_mint(SfyFarm, 21000000 * 10 ** uint256(decimals)); // 100%, 21000000\n\n\n\t}\n\n\n}\n\nlibrary TransferHelper {\n\n\n function safeApprove(address token, address to, uint value) internal {\n\n\n // bytes4(keccak256(bytes('approve(address,uint256)')));\n\n\n (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));\n\n\n require(success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper: APPROVE_FAILED');\n\n\n }\n\n\n\n\n\n function safeTransfer(address token, address to, uint value) internal {\n\n\n // bytes4(keccak256(bytes('transfer(address,uint256)')));\n\n\n (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));\n\n\n require(success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper: TRANSFER_FAILED');\n\n\n }\n\n\n\n\n\n function safeTransferFrom(address token, address from, address to, uint value) internal {\n\n\n // bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));\n\n\n (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));\n\n\n require(success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper: TRANSFER_FROM_FAILED');\n\n\n }\n\n\n\n\n\n function safeTransferETH(address to, uint value) internal {\n\n\n (bool success,) = to.call{value:value}(new bytes(0));\n\n\n require(success, 'TransferHelper: ETH_TRANSFER_FAILED');\n\n\n 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0":{"kind":"number","value":698,"string":"698"},"address":{"kind":"string","value":"0xf6c8e6083ff7b328e524681576139725c990c67d"},"source_code":{"kind":"string","value":"pragma solidity 0.6.5;\npragma experimental ABIEncoderV2;\n\nstruct ProtocolBalance {\n\n ProtocolMetadata metadata;\n\n AdapterBalance[] adapterBalances;\n\n}\n\nstruct ProtocolMetadata {\n\n string name;\n\n string description;\n\n string websiteURL;\n\n string iconURL;\n\n uint256 version;\n\n}\n\nstruct AdapterBalance {\n\n AdapterMetadata metadata;\n\n FullTokenBalance[] balances;\n\n}\n\nstruct AdapterMetadata {\n\n address adapterAddress;\n\n string adapterType; // \"Asset\", \"Debt\"\n\n}\n\nstruct FullTokenBalance {\n\n TokenBalance base;\n\n TokenBalance[] underlying;\n\n}\n\nstruct TokenBalance {\n\n TokenMetadata metadata;\n\n uint256 amount;\n\n}\n\nstruct TokenMetadata {\n\n address token;\n\n string name;\n\n string symbol;\n\n uint8 decimals;\n\n}\n\nstruct Component {\n\n address token;\n\n string tokenType; // \"ERC20\" by default\n\n uint256 rate; // price per full share (1e18)\n\n}\n\ninterface ERC20 {\n\n function approve(address, uint256) external returns (bool);\n\n function transfer(address, uint256) external returns (bool);\n\n function transferFrom(address, address, uint256) external returns (bool);\n\n function name() external view returns (string memory);\n\n function symbol() external view returns (string memory);\n\n function decimals() external view returns (uint8);\n\n function totalSupply() external view returns (uint256);\n\n function balanceOf(address) external view returns (uint256);\n\n}\n\ninterface TokenAdapter {\n\n\n\n /**\n\n * @dev MUST return TokenMetadata struct with ERC20-style token info.\n\n * struct TokenMetadata {\n\n * address token;\n\n * string name;\n\n * string symbol;\n\n * uint8 decimals;\n\n * }\n\n */\n\n function getMetadata(address token) external view returns (TokenMetadata memory);\n\n\n\n /**\n\n * @dev MUST return array of Component structs with underlying tokens rates for the given token.\n\n * struct Component {\n\n * address token; // Address of token contract\n\n * string tokenType; // Token type (\"ERC20\" by default)\n\n * uint256 rate; // Price per share (1e18)\n\n * }\n\n */\n\n function getComponents(address token) external view returns (Component[] memory);\n\n}\n\ninterface CToken {\n\n function isCToken() external view returns (bool);\n\n}\n\ninterface Mooniswap {\n\n function getTokens() external view returns(address[] memory);\n\n}\n\ncontract MooniswapTokenAdapter is TokenAdapter {\n\n\n\n /**\n\n * @return TokenMetadata struct with ERC20-style token info.\n\n * @dev Implementation of TokenAdapter interface function.\n\n */\n\n function getMetadata(address token) external view override returns (TokenMetadata memory) {\n\n return TokenMetadata({\n\n token: token,\n\n name: ERC20(token).name(),\n\n symbol: ERC20(token).symbol(),\n\n decimals: ERC20(token).decimals()\n\n });\n\n }\n\n\n\n /**\n\n * @return Array of Component structs with underlying tokens rates for the given token.\n\n * @dev Implementation of TokenAdapter interface function.\n\n */\n\n function getComponents(address token) external view override returns (Component[] memory) {\n\n address[] memory tokens = Mooniswap(token).getTokens();\n\n uint256 totalSupply = ERC20(token).totalSupply();\n\n Component[] memory underlyingTokens = new Component[](2);\n\n\n\n for (uint256 i = 0; i < 2; i++) {\n\n underlyingTokens[i] = Component({\n\n token: isETH(ERC20(tokens[i])) ? 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE : tokens[i],\n\n tokenType: getTokenType(tokens[i]),\n\n rate: uniBalanceOf(ERC20(tokens[i]), token) * 1e18 / totalSupply\n\n });\n\n }\n\n\n\n return underlyingTokens;\n\n }\n\n\n\n function getTokenType(address token) internal view returns (string memory) {\n\n (bool success, bytes memory returnData) = token.staticcall{gas: 2000}(\n\n abi.encodeWithSelector(CToken(token).isCToken.selector)\n\n );\n\n\n\n if (success) {\n\n if (returnData.length == 32) {\n\n return abi.decode(returnData, (bool)) ? \"CToken\" : \"ERC20\";\n\n } else {\n\n return \"ERC20\";\n\n }\n\n } else {\n\n return \"ERC20\";\n\n }\n\n }\n\n\n\n function uniBalanceOf(ERC20 token, address account) internal view returns (uint256) {\n\n if (isETH(token)) {\n\n return account.balance;\n\n } else {\n\n return token.balanceOf(account);\n\n }\n\n }\n\n\n\n function isETH(ERC20 token) internal pure returns(bool) {\n\n return (address(token) == address(0));\n\n 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0":{"kind":"number","value":699,"string":"699"},"address":{"kind":"string","value":"0xF6d5137CfA2C5f23530a0FCe66056B12B985554d"},"source_code":{"kind":"string","value":"pragma solidity 0.7.3;\n\nlibrary AdditionalMath {\n\n using SafeMath for uint256;\n\n\n\n function max16(uint16 a, uint16 b) internal pure returns (uint16) {\n\n return a >= b ? a : b;\n\n }\n\n\n\n function min16(uint16 a, uint16 b) internal pure returns (uint16) {\n\n return a < b ? a : b;\n\n }\n\n\n\n /**\n\n * @notice Division and ceil\n\n */\n\n function divCeil(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return (a.add(b) - 1) / b;\n\n }\n\n\n\n /**\n\n * @dev Adds signed value to unsigned value, throws on overflow.\n\n */\n\n function addSigned(uint256 a, int256 b) internal pure returns (uint256) {\n\n if (b >= 0) {\n\n return a.add(uint256(b));\n\n } else {\n\n return a.sub(uint256(-b));\n\n }\n\n }\n\n\n\n /**\n\n * @dev Subtracts signed value from unsigned value, throws on overflow.\n\n */\n\n function subSigned(uint256 a, int256 b) internal pure returns (uint256) {\n\n if (b >= 0) {\n\n return a.sub(uint256(b));\n\n } else {\n\n return a.add(uint256(-b));\n\n }\n\n }\n\n\n\n /**\n\n * @dev Multiplies two numbers, throws on overflow.\n\n */\n\n function mul32(uint32 a, uint32 b) internal pure returns (uint32) {\n\n if (a == 0) {\n\n return 0;\n\n }\n\n uint32 c = a * b;\n\n assert(c / a == b);\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Adds two numbers, throws on overflow.\n\n */\n\n function add16(uint16 a, uint16 b) internal pure returns (uint16) {\n\n uint16 c = a + b;\n\n assert(c >= a);\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Subtracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend).\n\n */\n\n function sub16(uint16 a, uint16 b) internal pure returns (uint16) {\n\n assert(b <= a);\n\n return a - b;\n\n }\n\n\n\n /**\n\n * @dev Adds signed value to unsigned value, throws on overflow.\n\n */\n\n function addSigned16(uint16 a, int16 b) internal pure returns (uint16) {\n\n if (b >= 0) {\n\n return add16(a, uint16(b));\n\n } else {\n\n return sub16(a, uint16(-b));\n\n }\n\n }\n\n\n\n /**\n\n * @dev Subtracts signed value from unsigned value, throws on overflow.\n\n */\n\n function subSigned16(uint16 a, int16 b) internal pure returns (uint16) {\n\n if (b >= 0) {\n\n return sub16(a, uint16(b));\n\n } else {\n\n return add16(a, uint16(-b));\n\n }\n\n }\n\n}\n\nlibrary Bits {\n\n\n\n uint256 internal constant ONE = uint256(1);\n\n\n\n /**\n\n * @notice Sets the bit at the given 'index' in 'self' to:\n\n * '1' - if the bit is '0'\n\n * '0' - if the bit is '1'\n\n * @return The modified value\n\n */\n\n function toggleBit(uint256 self, uint8 index) internal pure returns (uint256) {\n\n return self ^ ONE << index;\n\n }\n\n\n\n /**\n\n * @notice Get the value of the bit at the given 'index' in 'self'.\n\n */\n\n function bit(uint256 self, uint8 index) internal pure returns (uint8) {\n\n return uint8(self >> index & 1);\n\n }\n\n\n\n /**\n\n * @notice Check if the bit at the given 'index' in 'self' is set.\n\n * @return 'true' - if the value of the bit is '1',\n\n * 'false' - if the value of the bit is '0'\n\n */\n\n function bitSet(uint256 self, uint8 index) internal pure returns (bool) {\n\n return self >> index & 1 == 1;\n\n }\n\n\n\n}\n\ninterface IERC20 {\n\n function transfer(address to, uint256 value) external returns (bool);\n\n\n\n function approve(address spender, uint256 value) external returns (bool);\n\n\n\n function transferFrom(address from, address to, uint256 value) external returns (bool);\n\n\n\n function totalSupply() external view returns (uint256);\n\n\n\n function balanceOf(address who) external view returns (uint256);\n\n\n\n function allowance(address owner, address spender) external view returns (uint256);\n\n\n\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n\n\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n}\n\ninterface IERC900History {\n\n function totalStakedForAt(address addr, uint256 blockNumber) external view returns (uint256);\n\n function totalStakedAt(uint256 blockNumber) external view returns (uint256);\n\n function supportsHistory() external pure returns (bool);\n\n}\n\nlibrary Math {\n\n /**\n\n * @dev Returns the largest of two numbers.\n\n */\n\n function max(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return a >= b ? a : b;\n\n }\n\n\n\n /**\n\n * @dev Returns the smallest of two numbers.\n\n */\n\n function min(uint256 a, uint256 b) internal pure returns (uint256) {\n\n return a < b ? a : b;\n\n }\n\n\n\n /**\n\n * @dev Calculates the average of two numbers. Since these are integers,\n\n * averages of an even and odd number cannot be represented, and will be\n\n * rounded down.\n\n */\n\n function average(uint256 a, uint256 b) internal pure returns (uint256) {\n\n // (a + b) / 2 can overflow, so we distribute\n\n return (a / 2) + (b / 2) + ((a % 2 + b % 2) / 2);\n\n }\n\n}\n\ninterface TokenRecipient {\n\n\n\n /**\n\n * @notice Receives a notification of approval of the transfer\n\n * @param _from Sender of approval\n\n * @param _value The amount of tokens to be spent\n\n * @param _tokenContract Address of the token contract\n\n * @param _extraData Extra data\n\n */\n\n function receiveApproval(address _from, uint256 _value, address _tokenContract, bytes calldata _extraData) external;\n\n\n\n}\n\nabstract contract Ownable {\n\n address private _owner;\n\n\n\n event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\n\n\n\n /**\n\n * @dev The Ownable constructor sets the original `owner` of the contract to the sender\n\n * account.\n\n */\n\n constructor () {\n\n _owner = msg.sender;\n\n emit OwnershipTransferred(address(0), _owner);\n\n }\n\n\n\n /**\n\n * @return the address of the owner.\n\n */\n\n function owner() public view returns (address) {\n\n return _owner;\n\n }\n\n\n\n /**\n\n * @dev Throws if called by any account other than the owner.\n\n */\n\n modifier onlyOwner() {\n\n require(isOwner());\n\n _;\n\n }\n\n\n\n /**\n\n * @return true if `msg.sender` is the owner of the contract.\n\n */\n\n function isOwner() public view returns (bool) {\n\n return msg.sender == _owner;\n\n }\n\n\n\n /**\n\n * @dev Allows the current owner to relinquish control of the contract.\n\n * @notice Renouncing to ownership will leave the contract without an owner.\n\n * It will not be possible to call the functions with the `onlyOwner`\n\n * modifier anymore.\n\n */\n\n function renounceOwnership() public onlyOwner {\n\n emit OwnershipTransferred(_owner, address(0));\n\n _owner = address(0);\n\n }\n\n\n\n /**\n\n * @dev Allows the current owner to transfer control of the contract to a newOwner.\n\n * @param newOwner The address to transfer ownership to.\n\n */\n\n function transferOwnership(address newOwner) public virtual onlyOwner {\n\n _transferOwnership(newOwner);\n\n }\n\n\n\n /**\n\n * @dev Transfers control of the contract to a newOwner.\n\n * @param newOwner The address to transfer ownership to.\n\n */\n\n function _transferOwnership(address newOwner) internal {\n\n require(newOwner != address(0));\n\n emit OwnershipTransferred(_owner, newOwner);\n\n _owner = newOwner;\n\n }\n\n}\n\nlibrary SafeERC20 {\n\n using SafeMath for uint256;\n\n\n\n function safeTransfer(IERC20 token, address to, uint256 value) internal {\n\n require(token.transfer(to, value));\n\n }\n\n\n\n function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {\n\n require(token.transferFrom(from, to, value));\n\n }\n\n\n\n function safeApprove(IERC20 token, address spender, uint256 value) internal {\n\n // safeApprove should only be called when setting an initial allowance,\n\n // or when resetting it to zero. To increase and decrease it, use\n\n // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'\n\n require((value == 0) || (token.allowance(msg.sender, spender) == 0));\n\n require(token.approve(spender, value));\n\n }\n\n\n\n function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {\n\n uint256 newAllowance = token.allowance(address(this), spender).add(value);\n\n require(token.approve(spender, newAllowance));\n\n }\n\n\n\n function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {\n\n uint256 newAllowance = token.allowance(address(this), spender).sub(value);\n\n require(token.approve(spender, newAllowance));\n\n }\n\n}\n\nlibrary SafeMath {\n\n /**\n\n * @dev Multiplies two unsigned integers, reverts on overflow.\n\n */\n\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n\n // benefit is lost if 'b' is also tested.\n\n // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522\n\n if (a == 0) {\n\n return 0;\n\n }\n\n\n\n uint256 c = a * b;\n\n require(c / a == b);\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Integer division of two unsigned integers truncating the quotient, reverts on division by zero.\n\n */\n\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n\n // Solidity only automatically asserts when dividing by 0\n\n require(b > 0);\n\n uint256 c = a / b;\n\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Subtracts two unsigned integers, reverts on overflow (i.e. if subtrahend is greater than minuend).\n\n */\n\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n\n require(b <= a);\n\n uint256 c = a - b;\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Adds two unsigned integers, reverts on overflow.\n\n */\n\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n\n uint256 c = a + b;\n\n require(c >= a);\n\n\n\n return c;\n\n }\n\n\n\n /**\n\n * @dev Divides two unsigned integers and returns the remainder (unsigned integer modulo),\n\n * reverts when dividing by zero.\n\n */\n\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n\n require(b != 0);\n\n return a % b;\n\n }\n\n}\n\nlibrary Snapshot {\n\n\n\n function encodeSnapshot(uint32 _time, uint96 _value) internal pure returns(uint128) {\n\n return uint128(uint256(_time) << 96 | uint256(_value));\n\n }\n\n\n\n function decodeSnapshot(uint128 _snapshot) internal pure returns(uint32 time, uint96 value){\n\n time = uint32(bytes4(bytes16(_snapshot)));\n\n value = uint96(_snapshot);\n\n }\n\n\n\n function addSnapshot(uint128[] storage _self, uint256 _value) internal {\n\n addSnapshot(_self, block.number, _value);\n\n }\n\n\n\n function addSnapshot(uint128[] storage _self, uint256 _time, uint256 _value) internal {\n\n uint256 length = _self.length;\n\n if (length != 0) {\n\n (uint32 currentTime, ) = decodeSnapshot(_self[length - 1]);\n\n if (uint32(_time) == currentTime) {\n\n _self[length - 1] = encodeSnapshot(uint32(_time), uint96(_value));\n\n return;\n\n } else if (uint32(_time) < currentTime){\n\n revert();\n\n }\n\n }\n\n _self.push(encodeSnapshot(uint32(_time), uint96(_value)));\n\n }\n\n\n\n function lastSnapshot(uint128[] storage _self) internal view returns (uint32, uint96) {\n\n uint256 length = _self.length;\n\n if (length > 0) {\n\n return decodeSnapshot(_self[length - 1]);\n\n }\n\n\n\n return (0, 0);\n\n }\n\n\n\n function lastValue(uint128[] storage _self) internal view returns (uint96) {\n\n (, uint96 value) = lastSnapshot(_self);\n\n return value;\n\n }\n\n\n\n function getValueAt(uint128[] storage _self, uint256 _time256) internal view returns (uint96) {\n\n uint32 _time = uint32(_time256);\n\n uint256 length = _self.length;\n\n\n\n // Short circuit if there's no checkpoints yet\n\n // Note that this also lets us avoid using SafeMath later on, as we've established that\n\n // there must be at least one checkpoint\n\n if (length == 0) {\n\n return 0;\n\n }\n\n\n\n // Check last checkpoint\n\n uint256 lastIndex = length - 1;\n\n (uint32 snapshotTime, uint96 snapshotValue) = decodeSnapshot(_self[length - 1]);\n\n if (_time >= snapshotTime) {\n\n return snapshotValue;\n\n }\n\n\n\n // Check first checkpoint (if not already checked with the above check on last)\n\n (snapshotTime, snapshotValue) = decodeSnapshot(_self[0]);\n\n if (length == 1 || _time < snapshotTime) {\n\n return 0;\n\n }\n\n\n\n // Do binary search\n\n // As we've already checked both ends, we don't need to check the last checkpoint again\n\n uint256 low = 0;\n\n uint256 high = lastIndex - 1;\n\n uint32 midTime;\n\n uint96 midValue;\n\n\n\n while (high > low) {\n\n uint256 mid = (high + low + 1) / 2; // average, ceil round\n\n (midTime, midValue) = decodeSnapshot(_self[mid]);\n\n\n\n if (_time > midTime) {\n\n low = mid;\n\n } else if (_time < midTime) {\n\n // Note that we don't need SafeMath here because mid must always be greater than 0\n\n // from the while condition\n\n high = mid - 1;\n\n } else {\n\n // _time == midTime\n\n return midValue;\n\n }\n\n }\n\n\n\n (, snapshotValue) = decodeSnapshot(_self[low]);\n\n return snapshotValue;\n\n }\n\n}\n\ninterface PolicyManagerInterface {\n\n function register(address _node, uint16 _period) external;\n\n function escrow() external view returns (address);\n\n function ping(\n\n address _node,\n\n uint16 _processedPeriod1,\n\n uint16 _processedPeriod2,\n\n uint16 _periodToSetDefault\n\n ) external;\n\n}\n\ninterface AdjudicatorInterface {\n\n function escrow() external view returns (address);\n\n}\n\ninterface WorkLockInterface {\n\n function escrow() external view returns (address);\n\n}\n\nabstract contract Upgradeable is Ownable {\n\n\n\n event StateVerified(address indexed testTarget, address sender);\n\n event UpgradeFinished(address indexed target, address sender);\n\n\n\n /**\n\n * @dev Contracts at the target must reserve the same location in storage for this address as in Dispatcher\n\n * Stored data actually lives in the Dispatcher\n\n * However the storage layout is specified here in the implementing contracts\n\n */\n\n address public target;\n\n\n\n /**\n\n * @dev Previous contract address (if available). Used for rollback\n\n */\n\n address public previousTarget;\n\n\n\n /**\n\n * @dev Upgrade status. Explicit `uint8` type is used instead of `bool` to save gas by excluding 0 value\n\n */\n\n uint8 public isUpgrade;\n\n\n\n /**\n\n * @dev Guarantees that next slot will be separated from the previous\n\n */\n\n uint256 stubSlot;\n\n\n\n /**\n\n * @dev Constants for `isUpgrade` field\n\n */\n\n uint8 constant UPGRADE_FALSE = 1;\n\n uint8 constant UPGRADE_TRUE = 2;\n\n\n\n /**\n\n * @dev Checks that function executed while upgrading\n\n * Recommended to add to `verifyState` and `finishUpgrade` methods\n\n */\n\n modifier onlyWhileUpgrading()\n\n {\n\n require(isUpgrade == UPGRADE_TRUE);\n\n _;\n\n }\n\n\n\n /**\n\n * @dev Method for verifying storage state.\n\n * Should check that new target contract returns right storage value\n\n */\n\n function verifyState(address _testTarget) public virtual onlyWhileUpgrading {\n\n emit StateVerified(_testTarget, msg.sender);\n\n }\n\n\n\n /**\n\n * @dev Copy values from the new target to the current storage\n\n * @param _target New target contract address\n\n */\n\n function finishUpgrade(address _target) public virtual onlyWhileUpgrading {\n\n emit UpgradeFinished(_target, msg.sender);\n\n }\n\n\n\n /**\n\n * @dev Base method to get data\n\n * @param _target Target to call\n\n * @param _selector Method selector\n\n * @param _numberOfArguments Number of used arguments\n\n * @param _argument1 First method argument\n\n * @param _argument2 Second method argument\n\n * @return memoryAddress Address in memory where the data is located\n\n */\n\n function delegateGetData(\n\n address _target,\n\n bytes4 _selector,\n\n uint8 _numberOfArguments,\n\n bytes32 _argument1,\n\n bytes32 _argument2\n\n )\n\n internal returns (bytes32 memoryAddress)\n\n {\n\n assembly {\n\n memoryAddress := mload(0x40)\n\n mstore(memoryAddress, _selector)\n\n if gt(_numberOfArguments, 0) {\n\n mstore(add(memoryAddress, 0x04), _argument1)\n\n }\n\n if gt(_numberOfArguments, 1) {\n\n mstore(add(memoryAddress, 0x24), _argument2)\n\n }\n\n switch delegatecall(gas(), _target, memoryAddress, add(0x04, mul(0x20, _numberOfArguments)), 0, 0)\n\n case 0 {\n\n revert(memoryAddress, 0)\n\n }\n\n default {\n\n returndatacopy(memoryAddress, 0x0, returndatasize())\n\n }\n\n }\n\n }\n\n\n\n /**\n\n * @dev Call \"getter\" without parameters.\n\n * Result should not exceed 32 bytes\n\n */\n\n function delegateGet(address _target, bytes4 _selector)\n\n internal returns (uint256 result)\n\n {\n\n bytes32 memoryAddress = delegateGetData(_target, _selector, 0, 0, 0);\n\n assembly {\n\n result := mload(memoryAddress)\n\n }\n\n }\n\n\n\n /**\n\n * @dev Call \"getter\" with one parameter.\n\n * Result should not exceed 32 bytes\n\n */\n\n function delegateGet(address _target, bytes4 _selector, bytes32 _argument)\n\n internal returns (uint256 result)\n\n {\n\n bytes32 memoryAddress = delegateGetData(_target, _selector, 1, _argument, 0);\n\n assembly {\n\n result := mload(memoryAddress)\n\n }\n\n }\n\n\n\n /**\n\n * @dev Call \"getter\" with two parameters.\n\n * Result should not exceed 32 bytes\n\n */\n\n function delegateGet(\n\n address _target,\n\n bytes4 _selector,\n\n bytes32 _argument1,\n\n bytes32 _argument2\n\n )\n\n internal returns (uint256 result)\n\n {\n\n bytes32 memoryAddress = delegateGetData(_target, _selector, 2, _argument1, _argument2);\n\n assembly {\n\n result := mload(memoryAddress)\n\n }\n\n }\n\n}\n\ncontract ERC20 is IERC20 {\n\n using SafeMath for uint256;\n\n\n\n mapping (address => uint256) private _balances;\n\n\n\n mapping (address => mapping (address => uint256)) private _allowed;\n\n\n\n uint256 private _totalSupply;\n\n\n\n /**\n\n * @dev Total number of tokens in existence\n\n */\n\n function totalSupply() public view override returns (uint256) {\n\n return _totalSupply;\n\n }\n\n\n\n /**\n\n * @dev Gets the balance of the specified address.\n\n * @param owner The address to query the balance of.\n\n * @return An uint256 representing the amount owned by the passed address.\n\n */\n\n function balanceOf(address owner) public view override returns (uint256) {\n\n return _balances[owner];\n\n }\n\n\n\n /**\n\n * @dev Function to check the amount of tokens that an owner allowed to a spender.\n\n * @param owner address The address which owns the funds.\n\n * @param spender address The address which will spend the funds.\n\n * @return A uint256 specifying the amount of tokens still available for the spender.\n\n */\n\n function allowance(address owner, address spender) public view override returns (uint256) {\n\n return _allowed[owner][spender];\n\n }\n\n\n\n /**\n\n * @dev Transfer token for a specified address\n\n * @param to The address to transfer to.\n\n * @param value The amount to be transferred.\n\n */\n\n function transfer(address to, uint256 value) public override returns (bool) {\n\n _transfer(msg.sender, to, value);\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.\n\n * Beware that changing an allowance with this method brings the risk that someone may use both the old\n\n * and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this\n\n * race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:\n\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n\n * @param spender The address which will spend the funds.\n\n * @param value The amount of tokens to be spent.\n\n */\n\n function approve(address spender, uint256 value) public override returns (bool) {\n\n\n\n // To change the approve amount you first have to reduce the addresses`\n\n // allowance to zero by calling `approve(_spender, 0)` if it is not\n\n // already 0 to mitigate the race condition described here:\n\n // https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n\n require(value == 0 || _allowed[msg.sender][spender] == 0);\n\n\n\n _approve(msg.sender, spender, value);\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev Transfer tokens from one address to another.\n\n * Note that while this function emits an Approval event, this is not required as per the specification,\n\n * and other compliant implementations may not emit the event.\n\n * @param from address The address which you want to send tokens from\n\n * @param to address The address which you want to transfer to\n\n * @param value uint256 the amount of tokens to be transferred\n\n */\n\n function transferFrom(address from, address to, uint256 value) public override returns (bool) {\n\n _transfer(from, to, value);\n\n _approve(from, msg.sender, _allowed[from][msg.sender].sub(value));\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev Increase the amount of tokens that an owner allowed to a spender.\n\n * approve should be called when allowed_[_spender] == 0. To increment\n\n * allowed value is better to use this function to avoid 2 calls (and wait until\n\n * the first transaction is mined)\n\n * From MonolithDAO Token.sol\n\n * Emits an Approval event.\n\n * @param spender The address which will spend the funds.\n\n * @param addedValue The amount of tokens to increase the allowance by.\n\n */\n\n function increaseAllowance(address spender, uint256 addedValue) public returns (bool) {\n\n _approve(msg.sender, spender, _allowed[msg.sender][spender].add(addedValue));\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev Decrease the amount of tokens that an owner allowed to a spender.\n\n * approve should be called when allowed_[_spender] == 0. To decrement\n\n * allowed value is better to use this function to avoid 2 calls (and wait until\n\n * the first transaction is mined)\n\n * From MonolithDAO Token.sol\n\n * Emits an Approval event.\n\n * @param spender The address which will spend the funds.\n\n * @param subtractedValue The amount of tokens to decrease the allowance by.\n\n */\n\n function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) {\n\n _approve(msg.sender, spender, _allowed[msg.sender][spender].sub(subtractedValue));\n\n return true;\n\n }\n\n\n\n /**\n\n * @dev Transfer token for a specified addresses\n\n * @param from The address to transfer from.\n\n * @param to The address to transfer to.\n\n * @param value The amount to be transferred.\n\n */\n\n function _transfer(address from, address to, uint256 value) internal {\n\n require(to != address(0));\n\n\n\n _balances[from] = _balances[from].sub(value);\n\n _balances[to] = _balances[to].add(value);\n\n emit Transfer(from, to, value);\n\n }\n\n\n\n /**\n\n * @dev Internal function that mints an amount of the token and assigns it to\n\n * an account. This encapsulates the modification of balances such that the\n\n * proper events are emitted.\n\n * @param account The account that will receive the created tokens.\n\n * @param value The amount that will be created.\n\n */\n\n function _mint(address account, uint256 value) internal {\n\n require(account != address(0));\n\n\n\n _totalSupply = _totalSupply.add(value);\n\n _balances[account] = _balances[account].add(value);\n\n emit Transfer(address(0), account, value);\n\n }\n\n\n\n /**\n\n * @dev Internal function that burns an amount of the token of a given\n\n * account.\n\n * @param account The account whose tokens will be burnt.\n\n * @param value The amount that will be burnt.\n\n */\n\n function _burn(address account, uint256 value) internal {\n\n require(account != address(0));\n\n\n\n _totalSupply = _totalSupply.sub(value);\n\n _balances[account] = _balances[account].sub(value);\n\n emit Transfer(account, address(0), value);\n\n }\n\n\n\n /**\n\n * @dev Approve an address to spend another addresses' tokens.\n\n * @param owner The address that owns the tokens.\n\n * @param spender The address that will spend the tokens.\n\n * @param value The number of tokens that can be spent.\n\n */\n\n function _approve(address owner, address spender, uint256 value) internal {\n\n require(spender != address(0));\n\n require(owner != address(0));\n\n\n\n _allowed[owner][spender] = value;\n\n emit Approval(owner, spender, value);\n\n }\n\n\n\n /**\n\n * @dev Internal function that burns an amount of the token of a given\n\n * account, deducting from the sender's allowance for said account. Uses the\n\n * internal burn function.\n\n * Emits an Approval event (reflecting the reduced allowance).\n\n * @param account The account whose tokens will be burnt.\n\n * @param value The amount that will be burnt.\n\n */\n\n function _burnFrom(address account, uint256 value) internal {\n\n _burn(account, value);\n\n _approve(account, msg.sender, _allowed[account][msg.sender].sub(value));\n\n }\n\n\n\n}\n\nabstract contract ERC20Detailed is IERC20 {\n\n string private _name;\n\n string private _symbol;\n\n uint8 private _decimals;\n\n\n\n constructor (string memory name, string memory symbol, uint8 decimals) {\n\n _name = name;\n\n _symbol = symbol;\n\n _decimals = decimals;\n\n }\n\n\n\n /**\n\n * @return the name of the token.\n\n */\n\n function name() public view returns (string memory) {\n\n return _name;\n\n }\n\n\n\n /**\n\n * @return the symbol of the token.\n\n */\n\n function symbol() public view returns (string memory) {\n\n return _symbol;\n\n }\n\n\n\n /**\n\n * @return the number of decimals of the token.\n\n */\n\n function decimals() public view returns (uint8) {\n\n return _decimals;\n\n }\n\n}\n\nabstract contract Issuer is Upgradeable {\n\n using SafeERC20 for NuCypherToken;\n\n using AdditionalMath for uint32;\n\n\n\n event Donated(address indexed sender, uint256 value);\n\n /// Issuer is initialized with a reserved reward\n\n event Initialized(uint256 reservedReward);\n\n\n\n uint128 constant MAX_UINT128 = uint128(0) - 1;\n\n\n\n NuCypherToken public immutable token;\n\n uint128 public immutable totalSupply;\n\n\n\n // d * k2\n\n uint256 public immutable mintingCoefficient;\n\n // k1\n\n uint256 public immutable lockDurationCoefficient1;\n\n // k2\n\n uint256 public immutable lockDurationCoefficient2;\n\n uint32 public immutable secondsPerPeriod;\n\n // kmax\n\n uint16 public immutable maximumRewardedPeriods;\n\n\n\n uint256 public immutable firstPhaseMaxIssuance;\n\n uint256 public immutable firstPhaseTotalSupply;\n\n\n\n /**\n\n * Current supply is used in the minting formula and is stored to prevent different calculation\n\n * for stakers which get reward in the same period. There are two values -\n\n * supply for previous period (used in formula) and supply for current period which accumulates value\n\n * before end of period.\n\n */\n\n uint128 public previousPeriodSupply;\n\n uint128 public currentPeriodSupply;\n\n uint16 public currentMintingPeriod;\n\n\n\n /**\n\n * @notice Constructor sets address of token contract and coefficients for minting\n\n * @dev Minting formula for one sub-stake in one period for the first phase\n\n firstPhaseMaxIssuance * (lockedValue / totalLockedValue) * (k1 + min(allLockedPeriods, kmax)) / k2\n\n * @dev Minting formula for one sub-stake in one period for the second phase\n\n (totalSupply - currentSupply) / d * (lockedValue / totalLockedValue) * (k1 + min(allLockedPeriods, kmax)) / k2\n\n if allLockedPeriods > maximumRewardedPeriods then allLockedPeriods = maximumRewardedPeriods\n\n * @param _token Token contract\n\n * @param _hoursPerPeriod Size of period in hours\n\n * @param _issuanceDecayCoefficient (d) Coefficient which modifies the rate at which the maximum issuance decays,\n\n * only applicable to Phase 2. d = 365 * half-life / LOG2 where default half-life = 2.\n\n * See Equation 10 in Staking Protocol & Economics paper\n\n * @param _lockDurationCoefficient1 (k1) Numerator of the coefficient which modifies the extent \n\n * to which a stake's lock duration affects the subsidy it receives. Affects stakers differently. \n\n * Applicable to Phase 1 and Phase 2. k1 = k2 * small_stake_multiplier where default small_stake_multiplier = 0.5. \n\n * See Equation 8 in Staking Protocol & Economics paper.\n\n * @param _lockDurationCoefficient2 (k2) Denominator of the coefficient which modifies the extent\n\n * to which a stake's lock duration affects the subsidy it receives. Affects stakers differently.\n\n * Applicable to Phase 1 and Phase 2. k2 = maximum_rewarded_periods / (1 - small_stake_multiplier)\n\n * where default maximum_rewarded_periods = 365 and default small_stake_multiplier = 0.5.\n\n * See Equation 8 in Staking Protocol & Economics paper.\n\n * @param _maximumRewardedPeriods (kmax) Number of periods beyond which a stake's lock duration\n\n * no longer increases the subsidy it receives. kmax = reward_saturation * 365 where default reward_saturation = 1.\n\n * See Equation 8 in Staking Protocol & Economics paper.\n\n * @param _firstPhaseTotalSupply Total supply for the first phase\n\n * @param _firstPhaseMaxIssuance (Imax) Maximum number of new tokens minted per period during Phase 1.\n\n * See Equation 7 in Staking Protocol & Economics paper.\n\n */\n\n constructor(\n\n NuCypherToken _token,\n\n uint32 _hoursPerPeriod,\n\n uint256 _issuanceDecayCoefficient,\n\n uint256 _lockDurationCoefficient1,\n\n uint256 _lockDurationCoefficient2,\n\n uint16 _maximumRewardedPeriods,\n\n uint256 _firstPhaseTotalSupply,\n\n uint256 _firstPhaseMaxIssuance\n\n ) {\n\n uint256 localTotalSupply = _token.totalSupply();\n\n require(localTotalSupply > 0 &&\n\n _issuanceDecayCoefficient != 0 &&\n\n _hoursPerPeriod != 0 &&\n\n _lockDurationCoefficient1 != 0 &&\n\n _lockDurationCoefficient2 != 0 &&\n\n _maximumRewardedPeriods != 0);\n\n require(localTotalSupply <= uint256(MAX_UINT128), \"Token contract has supply more than supported\");\n\n\n\n uint256 maxLockDurationCoefficient = _maximumRewardedPeriods + _lockDurationCoefficient1;\n\n uint256 localMintingCoefficient = _issuanceDecayCoefficient * _lockDurationCoefficient2;\n\n require(maxLockDurationCoefficient > _maximumRewardedPeriods &&\n\n localMintingCoefficient / _issuanceDecayCoefficient == _lockDurationCoefficient2 &&\n\n // worst case for `totalLockedValue * d * k2`, when totalLockedValue == totalSupply\n\n localTotalSupply * localMintingCoefficient / localTotalSupply == localMintingCoefficient &&\n\n // worst case for `(totalSupply - currentSupply) * lockedValue * (k1 + min(allLockedPeriods, kmax))`,\n\n // when currentSupply == 0, lockedValue == totalSupply\n\n localTotalSupply * localTotalSupply * maxLockDurationCoefficient / localTotalSupply / localTotalSupply ==\n\n maxLockDurationCoefficient,\n\n \"Specified parameters cause overflow\");\n\n\n\n require(maxLockDurationCoefficient <= _lockDurationCoefficient2,\n\n \"Resulting locking duration coefficient must be less than 1\");\n\n require(_firstPhaseTotalSupply <= localTotalSupply, \"Too many tokens for the first phase\");\n\n require(_firstPhaseMaxIssuance <= _firstPhaseTotalSupply, \"Reward for the first phase is too high\");\n\n\n\n token = _token;\n\n secondsPerPeriod = _hoursPerPeriod.mul32(1 hours);\n\n lockDurationCoefficient1 = _lockDurationCoefficient1;\n\n lockDurationCoefficient2 = _lockDurationCoefficient2;\n\n maximumRewardedPeriods = _maximumRewardedPeriods;\n\n firstPhaseTotalSupply = _firstPhaseTotalSupply;\n\n firstPhaseMaxIssuance = _firstPhaseMaxIssuance;\n\n totalSupply = uint128(localTotalSupply);\n\n mintingCoefficient = localMintingCoefficient;\n\n }\n\n\n\n /**\n\n * @dev Checks contract initialization\n\n */\n\n modifier isInitialized()\n\n {\n\n require(currentMintingPeriod != 0);\n\n _;\n\n }\n\n\n\n /**\n\n * @return Number of current period\n\n */\n\n function getCurrentPeriod() public view returns (uint16) {\n\n return uint16(block.timestamp / secondsPerPeriod);\n\n }\n\n\n\n /**\n\n * @notice Initialize reserved tokens for reward\n\n */\n\n function initialize(uint256 _reservedReward, address _sourceOfFunds) external onlyOwner {\n\n require(currentMintingPeriod == 0);\n\n // Reserved reward must be sufficient for at least one period of the first phase\n\n require(firstPhaseMaxIssuance <= _reservedReward);\n\n currentMintingPeriod = getCurrentPeriod();\n\n currentPeriodSupply = totalSupply - uint128(_reservedReward);\n\n previousPeriodSupply = currentPeriodSupply;\n\n token.safeTransferFrom(_sourceOfFunds, address(this), _reservedReward);\n\n emit Initialized(_reservedReward);\n\n }\n\n\n\n /**\n\n * @notice Function to mint tokens for one period.\n\n * @param _currentPeriod Current period number.\n\n * @param _lockedValue The amount of tokens that were locked by user in specified period.\n\n * @param _totalLockedValue The amount of tokens that were locked by all users in specified period.\n\n * @param _allLockedPeriods The max amount of periods during which tokens will be locked after specified period.\n\n * @return amount Amount of minted tokens.\n\n */\n\n function mint(\n\n uint16 _currentPeriod,\n\n uint256 _lockedValue,\n\n uint256 _totalLockedValue,\n\n uint16 _allLockedPeriods\n\n )\n\n internal returns (uint256 amount)\n\n {\n\n if (currentPeriodSupply == totalSupply) {\n\n return 0;\n\n }\n\n\n\n if (_currentPeriod > currentMintingPeriod) {\n\n previousPeriodSupply = currentPeriodSupply;\n\n currentMintingPeriod = _currentPeriod;\n\n }\n\n\n\n uint256 currentReward;\n\n uint256 coefficient;\n\n\n\n // first phase\n\n // firstPhaseMaxIssuance * lockedValue * (k1 + min(allLockedPeriods, kmax)) / (totalLockedValue * k2)\n\n if (previousPeriodSupply + firstPhaseMaxIssuance <= firstPhaseTotalSupply) {\n\n currentReward = firstPhaseMaxIssuance;\n\n coefficient = lockDurationCoefficient2;\n\n // second phase\n\n // (totalSupply - currentSupply) * lockedValue * (k1 + min(allLockedPeriods, kmax)) / (totalLockedValue * d * k2)\n\n } else {\n\n currentReward = totalSupply - previousPeriodSupply;\n\n coefficient = mintingCoefficient;\n\n }\n\n\n\n uint256 allLockedPeriods =\n\n AdditionalMath.min16(_allLockedPeriods, maximumRewardedPeriods) + lockDurationCoefficient1;\n\n amount = (uint256(currentReward) * _lockedValue * allLockedPeriods) /\n\n (_totalLockedValue * coefficient);\n\n\n\n // rounding the last reward\n\n uint256 maxReward = getReservedReward();\n\n if (amount == 0) {\n\n amount = 1;\n\n } else if (amount > maxReward) {\n\n amount = maxReward;\n\n }\n\n\n\n currentPeriodSupply += uint128(amount);\n\n }\n\n\n\n /**\n\n * @notice Return tokens for future minting\n\n * @param _amount Amount of tokens\n\n */\n\n function unMint(uint256 _amount) internal {\n\n previousPeriodSupply -= uint128(_amount);\n\n currentPeriodSupply -= uint128(_amount);\n\n }\n\n\n\n /**\n\n * @notice Donate sender's tokens. Amount of tokens will be returned for future minting\n\n * @param _value Amount to donate\n\n */\n\n function donate(uint256 _value) external isInitialized {\n\n token.safeTransferFrom(msg.sender, address(this), _value);\n\n unMint(_value);\n\n emit Donated(msg.sender, _value);\n\n }\n\n\n\n /**\n\n * @notice Returns the number of tokens that can be minted\n\n */\n\n function getReservedReward() public view returns (uint256) {\n\n return totalSupply - currentPeriodSupply;\n\n }\n\n\n\n /// @dev the `onlyWhileUpgrading` modifier works through a call to the parent `verifyState`\n\n function verifyState(address _testTarget) public override virtual {\n\n super.verifyState(_testTarget);\n\n require(uint16(delegateGet(_testTarget, this.currentMintingPeriod.selector)) == currentMintingPeriod);\n\n require(uint128(delegateGet(_testTarget, this.previousPeriodSupply.selector)) == previousPeriodSupply);\n\n require(uint128(delegateGet(_testTarget, this.currentPeriodSupply.selector)) == currentPeriodSupply);\n\n }\n\n\n\n}\n\ncontract NuCypherToken is ERC20, ERC20Detailed('NuCypher', 'NU', 18) {\n\n\n\n /**\n\n * @notice Set amount of tokens\n\n * @param _totalSupplyOfTokens Total number of tokens\n\n */\n\n constructor (uint256 _totalSupplyOfTokens) {\n\n _mint(msg.sender, _totalSupplyOfTokens);\n\n }\n\n\n\n /**\n\n * @notice Approves and then calls the receiving contract\n\n *\n\n * @dev call the receiveApproval function on the contract you want to be notified.\n\n * receiveApproval(address _from, uint256 _value, address _tokenContract, bytes _extraData)\n\n */\n\n function approveAndCall(address _spender, uint256 _value, bytes calldata _extraData)\n\n external returns (bool success)\n\n {\n\n approve(_spender, _value);\n\n TokenRecipient(_spender).receiveApproval(msg.sender, _value, address(this), _extraData);\n\n return true;\n\n }\n\n\n\n}\n\ncontract StakingEscrow is Issuer, IERC900History {\n\n\n\n using AdditionalMath for uint256;\n\n using AdditionalMath for uint16;\n\n using Bits for uint256;\n\n using SafeMath for uint256;\n\n using Snapshot for uint128[];\n\n using SafeERC20 for NuCypherToken;\n\n\n\n event Deposited(address indexed staker, uint256 value, uint16 periods);\n\n event Locked(address indexed staker, uint256 value, uint16 firstPeriod, uint16 periods);\n\n event Divided(\n\n address indexed staker,\n\n uint256 oldValue,\n\n uint16 lastPeriod,\n\n uint256 newValue,\n\n uint16 periods\n\n );\n\n event Merged(address indexed staker, uint256 value1, uint256 value2, uint16 lastPeriod);\n\n event Prolonged(address indexed staker, uint256 value, uint16 lastPeriod, uint16 periods);\n\n event Withdrawn(address indexed staker, uint256 value);\n\n event CommitmentMade(address indexed staker, uint16 indexed period, uint256 value);\n\n event Minted(address indexed staker, uint16 indexed period, uint256 value);\n\n event Slashed(address indexed staker, uint256 penalty, address indexed investigator, uint256 reward);\n\n event ReStakeSet(address indexed staker, bool reStake);\n\n event ReStakeLocked(address indexed staker, uint16 lockUntilPeriod);\n\n event WorkerBonded(address indexed staker, address indexed worker, uint16 indexed startPeriod);\n\n event WorkMeasurementSet(address indexed staker, bool measureWork);\n\n event WindDownSet(address indexed staker, bool windDown);\n\n event SnapshotSet(address indexed staker, bool snapshotsEnabled);\n\n\n\n struct SubStakeInfo {\n\n uint16 firstPeriod;\n\n uint16 lastPeriod;\n\n uint16 periods;\n\n uint128 lockedValue;\n\n }\n\n\n\n struct Downtime {\n\n uint16 startPeriod;\n\n uint16 endPeriod;\n\n }\n\n\n\n struct StakerInfo {\n\n uint256 value;\n\n /*\n\n * Stores periods that are committed but not yet rewarded.\n\n * In order to optimize storage, only two values are used instead of an array.\n\n * commitToNextPeriod() method invokes mint() method so there can only be two committed\n\n * periods that are not yet rewarded: the current and the next periods.\n\n */\n\n uint16 currentCommittedPeriod;\n\n uint16 nextCommittedPeriod;\n\n uint16 lastCommittedPeriod;\n\n uint16 lockReStakeUntilPeriod;\n\n uint256 completedWork;\n\n uint16 workerStartPeriod; // period when worker was bonded\n\n address worker;\n\n uint256 flags; // uint256 to acquire whole slot and minimize operations on it\n\n\n\n uint256 reservedSlot1;\n\n uint256 reservedSlot2;\n\n uint256 reservedSlot3;\n\n uint256 reservedSlot4;\n\n uint256 reservedSlot5;\n\n\n\n Downtime[] pastDowntime;\n\n SubStakeInfo[] subStakes;\n\n uint128[] history;\n\n\n\n }\n\n\n\n // used only for upgrading\n\n uint16 internal constant RESERVED_PERIOD = 0;\n\n uint16 internal constant MAX_CHECKED_VALUES = 5;\n\n // to prevent high gas consumption in loops for slashing\n\n uint16 public constant MAX_SUB_STAKES = 30;\n\n uint16 internal constant MAX_UINT16 = 65535;\n\n\n\n // indices for flags\n\n uint8 internal constant RE_STAKE_DISABLED_INDEX = 0;\n\n uint8 internal constant WIND_DOWN_INDEX = 1;\n\n uint8 internal constant MEASURE_WORK_INDEX = 2;\n\n uint8 internal constant SNAPSHOTS_DISABLED_INDEX = 3;\n\n\n\n uint16 public immutable minLockedPeriods;\n\n uint16 public immutable minWorkerPeriods;\n\n uint256 public immutable minAllowableLockedTokens;\n\n uint256 public immutable maxAllowableLockedTokens;\n\n bool public immutable isTestContract;\n\n\n\n mapping (address => StakerInfo) public stakerInfo;\n\n address[] public stakers;\n\n mapping (address => address) public stakerFromWorker;\n\n\n\n mapping (uint16 => uint256) public lockedPerPeriod;\n\n uint128[] public balanceHistory;\n\n\n\n PolicyManagerInterface public policyManager;\n\n AdjudicatorInterface public adjudicator;\n\n WorkLockInterface public workLock;\n\n\n\n /**\n\n * @notice Constructor sets address of token contract and coefficients for minting\n\n * @param _token Token contract\n\n * @param _hoursPerPeriod Size of period in hours\n\n * @param _issuanceDecayCoefficient (d) Coefficient which modifies the rate at which the maximum issuance decays,\n\n * only applicable to Phase 2. d = 365 * half-life / LOG2 where default half-life = 2.\n\n * See Equation 10 in Staking Protocol & Economics paper\n\n * @param _lockDurationCoefficient1 (k1) Numerator of the coefficient which modifies the extent\n\n * to which a stake's lock duration affects the subsidy it receives. Affects stakers differently.\n\n * Applicable to Phase 1 and Phase 2. k1 = k2 * small_stake_multiplier where default small_stake_multiplier = 0.5.\n\n * See Equation 8 in Staking Protocol & Economics paper.\n\n * @param _lockDurationCoefficient2 (k2) Denominator of the coefficient which modifies the extent\n\n * to which a stake's lock duration affects the subsidy it receives. Affects stakers differently.\n\n * Applicable to Phase 1 and Phase 2. k2 = maximum_rewarded_periods / (1 - small_stake_multiplier)\n\n * where default maximum_rewarded_periods = 365 and default small_stake_multiplier = 0.5.\n\n * See Equation 8 in Staking Protocol & Economics paper.\n\n * @param _maximumRewardedPeriods (kmax) Number of periods beyond which a stake's lock duration\n\n * no longer increases the subsidy it receives. kmax = reward_saturation * 365 where default reward_saturation = 1.\n\n * See Equation 8 in Staking Protocol & Economics paper.\n\n * @param _firstPhaseTotalSupply Total supply for the first phase\n\n * @param _firstPhaseMaxIssuance (Imax) Maximum number of new tokens minted per period during Phase 1.\n\n * See Equation 7 in Staking Protocol & Economics paper.\n\n * @param _minLockedPeriods Min amount of periods during which tokens can be locked\n\n * @param _minAllowableLockedTokens Min amount of tokens that can be locked\n\n * @param _maxAllowableLockedTokens Max amount of tokens that can be locked\n\n * @param _minWorkerPeriods Min amount of periods while a worker can't be changed\n\n * @param _isTestContract True if contract is only for tests\n\n */\n\n constructor(\n\n NuCypherToken _token,\n\n uint32 _hoursPerPeriod,\n\n uint256 _issuanceDecayCoefficient,\n\n uint256 _lockDurationCoefficient1,\n\n uint256 _lockDurationCoefficient2,\n\n uint16 _maximumRewardedPeriods,\n\n uint256 _firstPhaseTotalSupply,\n\n uint256 _firstPhaseMaxIssuance,\n\n uint16 _minLockedPeriods,\n\n uint256 _minAllowableLockedTokens,\n\n uint256 _maxAllowableLockedTokens,\n\n uint16 _minWorkerPeriods,\n\n bool _isTestContract\n\n )\n\n Issuer(\n\n _token,\n\n _hoursPerPeriod,\n\n _issuanceDecayCoefficient,\n\n _lockDurationCoefficient1,\n\n _lockDurationCoefficient2,\n\n _maximumRewardedPeriods,\n\n _firstPhaseTotalSupply,\n\n _firstPhaseMaxIssuance\n\n )\n\n {\n\n // constant `1` in the expression `_minLockedPeriods > 1` uses to simplify the `lock` method\n\n require(_minLockedPeriods > 1 && _maxAllowableLockedTokens != 0);\n\n minLockedPeriods = _minLockedPeriods;\n\n minAllowableLockedTokens = _minAllowableLockedTokens;\n\n maxAllowableLockedTokens = _maxAllowableLockedTokens;\n\n minWorkerPeriods = _minWorkerPeriods;\n\n isTestContract = _isTestContract;\n\n }\n\n\n\n /**\n\n * @dev Checks the existence of a staker in the contract\n\n */\n\n modifier onlyStaker()\n\n {\n\n StakerInfo storage info = stakerInfo[msg.sender];\n\n require(info.value > 0 || info.nextCommittedPeriod != 0);\n\n _;\n\n }\n\n\n\n //------------------------Initialization------------------------\n\n /**\n\n * @notice Set policy manager address\n\n */\n\n function setPolicyManager(PolicyManagerInterface _policyManager) external onlyOwner {\n\n // Policy manager can be set only once\n\n require(address(policyManager) == address(0));\n\n // This escrow must be the escrow for the new policy manager\n\n require(_policyManager.escrow() == address(this));\n\n policyManager = _policyManager;\n\n }\n\n\n\n /**\n\n * @notice Set adjudicator address\n\n */\n\n function setAdjudicator(AdjudicatorInterface _adjudicator) external onlyOwner {\n\n // Adjudicator can be set only once\n\n require(address(adjudicator) == address(0));\n\n // This escrow must be the escrow for the new adjudicator\n\n require(_adjudicator.escrow() == address(this));\n\n adjudicator = _adjudicator;\n\n }\n\n\n\n /**\n\n * @notice Set worklock address\n\n */\n\n function setWorkLock(WorkLockInterface _workLock) external onlyOwner {\n\n // WorkLock can be set only once\n\n require(address(workLock) == address(0) || isTestContract);\n\n // This escrow must be the escrow for the new worklock\n\n require(_workLock.escrow() == address(this));\n\n workLock = _workLock;\n\n }\n\n\n\n //------------------------Main getters------------------------\n\n /**\n\n * @notice Get all tokens belonging to the staker\n\n */\n\n function getAllTokens(address _staker) external view returns (uint256) {\n\n return stakerInfo[_staker].value;\n\n }\n\n\n\n /**\n\n * @notice Get all flags for the staker\n\n */\n\n function getFlags(address _staker)\n\n external view returns (\n\n bool windDown,\n\n bool reStake,\n\n bool measureWork,\n\n bool snapshots\n\n )\n\n {\n\n StakerInfo storage info = stakerInfo[_staker];\n\n windDown = info.flags.bitSet(WIND_DOWN_INDEX);\n\n reStake = !info.flags.bitSet(RE_STAKE_DISABLED_INDEX);\n\n measureWork = info.flags.bitSet(MEASURE_WORK_INDEX);\n\n snapshots = !info.flags.bitSet(SNAPSHOTS_DISABLED_INDEX);\n\n }\n\n\n\n /**\n\n * @notice Get the start period. Use in the calculation of the last period of the sub stake\n\n * @param _info Staker structure\n\n * @param _currentPeriod Current period\n\n */\n\n function getStartPeriod(StakerInfo storage _info, uint16 _currentPeriod)\n\n internal view returns (uint16)\n\n {\n\n // if the next period (after current) is committed\n\n if (_info.flags.bitSet(WIND_DOWN_INDEX) && _info.nextCommittedPeriod > _currentPeriod) {\n\n return _currentPeriod + 1;\n\n }\n\n return _currentPeriod;\n\n }\n\n\n\n /**\n\n * @notice Get the last period of the sub stake\n\n * @param _subStake Sub stake structure\n\n * @param _startPeriod Pre-calculated start period\n\n */\n\n function getLastPeriodOfSubStake(SubStakeInfo storage _subStake, uint16 _startPeriod)\n\n internal view returns (uint16)\n\n {\n\n if (_subStake.lastPeriod != 0) {\n\n return _subStake.lastPeriod;\n\n }\n\n uint32 lastPeriod = uint32(_startPeriod) + _subStake.periods;\n\n if (lastPeriod > uint32(MAX_UINT16)) {\n\n return MAX_UINT16;\n\n }\n\n return uint16(lastPeriod);\n\n }\n\n\n\n /**\n\n * @notice Get the last period of the sub stake\n\n * @param _staker Staker\n\n * @param _index Stake index\n\n */\n\n function getLastPeriodOfSubStake(address _staker, uint256 _index)\n\n public view returns (uint16)\n\n {\n\n StakerInfo storage info = stakerInfo[_staker];\n\n SubStakeInfo storage subStake = info.subStakes[_index];\n\n uint16 startPeriod = getStartPeriod(info, getCurrentPeriod());\n\n return getLastPeriodOfSubStake(subStake, startPeriod);\n\n }\n\n\n\n\n\n /**\n\n * @notice Get the value of locked tokens for a staker in a specified period\n\n * @dev Information may be incorrect for rewarded or not committed surpassed period\n\n * @param _info Staker structure\n\n * @param _currentPeriod Current period\n\n * @param _period Next period\n\n */\n\n function getLockedTokens(StakerInfo storage _info, uint16 _currentPeriod, uint16 _period)\n\n internal view returns (uint256 lockedValue)\n\n {\n\n lockedValue = 0;\n\n uint16 startPeriod = getStartPeriod(_info, _currentPeriod);\n\n for (uint256 i = 0; i < _info.subStakes.length; i++) {\n\n SubStakeInfo storage subStake = _info.subStakes[i];\n\n if (subStake.firstPeriod <= _period &&\n\n getLastPeriodOfSubStake(subStake, startPeriod) >= _period) {\n\n lockedValue += subStake.lockedValue;\n\n }\n\n }\n\n }\n\n\n\n /**\n\n * @notice Get the value of locked tokens for a staker in a future period\n\n * @dev This function is used by PreallocationEscrow so its signature can't be updated.\n\n * @param _staker Staker\n\n * @param _periods Amount of periods that will be added to the current period\n\n */\n\n function getLockedTokens(address _staker, uint16 _periods)\n\n external view returns (uint256 lockedValue)\n\n {\n\n StakerInfo storage info = stakerInfo[_staker];\n\n uint16 currentPeriod = getCurrentPeriod();\n\n uint16 nextPeriod = currentPeriod.add16(_periods);\n\n return getLockedTokens(info, currentPeriod, nextPeriod);\n\n }\n\n\n\n /**\n\n * @notice Get the last committed staker's period\n\n * @param _staker Staker\n\n */\n\n function getLastCommittedPeriod(address _staker) public view returns (uint16) {\n\n StakerInfo storage info = stakerInfo[_staker];\n\n return info.nextCommittedPeriod != 0 ? info.nextCommittedPeriod : info.lastCommittedPeriod;\n\n }\n\n\n\n /**\n\n * @notice Get the value of locked tokens for active stakers in (getCurrentPeriod() + _periods) period\n\n * as well as stakers and their locked tokens\n\n * @param _periods Amount of periods for locked tokens calculation\n\n * @param _startIndex Start index for looking in stakers array\n\n * @param _maxStakers Max stakers for looking, if set 0 then all will be used\n\n * @return allLockedTokens Sum of locked tokens for active stakers\n\n * @return activeStakers Array of stakers and their locked tokens. Stakers addresses stored as uint256\n\n * @dev Note that activeStakers[0] in an array of uint256, but you want addresses. Careful when used directly!\n\n */\n\n function getActiveStakers(uint16 _periods, uint256 _startIndex, uint256 _maxStakers)\n\n external view returns (uint256 allLockedTokens, uint256[2][] memory activeStakers)\n\n {\n\n require(_periods > 0);\n\n\n\n uint256 endIndex = stakers.length;\n\n require(_startIndex < endIndex);\n\n if (_maxStakers != 0 && _startIndex + _maxStakers < endIndex) {\n\n endIndex = _startIndex + _maxStakers;\n\n }\n\n activeStakers = new uint256[2][](endIndex - _startIndex);\n\n allLockedTokens = 0;\n\n\n\n uint256 resultIndex = 0;\n\n uint16 currentPeriod = getCurrentPeriod();\n\n uint16 nextPeriod = currentPeriod.add16(_periods);\n\n\n\n for (uint256 i = _startIndex; i < endIndex; i++) {\n\n address staker = stakers[i];\n\n StakerInfo storage info = stakerInfo[staker];\n\n if (info.currentCommittedPeriod != currentPeriod &&\n\n info.nextCommittedPeriod != currentPeriod) {\n\n continue;\n\n }\n\n uint256 lockedTokens = getLockedTokens(info, currentPeriod, nextPeriod);\n\n if (lockedTokens != 0) {\n\n activeStakers[resultIndex][0] = uint256(staker);\n\n activeStakers[resultIndex++][1] = lockedTokens;\n\n allLockedTokens += lockedTokens;\n\n }\n\n }\n\n assembly {\n\n mstore(activeStakers, resultIndex)\n\n }\n\n }\n\n\n\n /**\n\n * @notice Checks if `reStake` parameter is available for changing\n\n * @param _staker Staker\n\n */\n\n function isReStakeLocked(address _staker) public view returns (bool) {\n\n return getCurrentPeriod() < stakerInfo[_staker].lockReStakeUntilPeriod;\n\n }\n\n\n\n /**\n\n * @notice Get worker using staker's address\n\n */\n\n function getWorkerFromStaker(address _staker) external view returns (address) {\n\n return stakerInfo[_staker].worker;\n\n }\n\n\n\n /**\n\n * @notice Get work that completed by the staker\n\n */\n\n function getCompletedWork(address _staker) external view returns (uint256) {\n\n return stakerInfo[_staker].completedWork;\n\n }\n\n\n\n /**\n\n * @notice Find index of downtime structure that includes specified period\n\n * @dev If specified period is outside all downtime periods, the length of the array will be returned\n\n * @param _staker Staker\n\n * @param _period Specified period number\n\n */\n\n function findIndexOfPastDowntime(address _staker, uint16 _period) external view returns (uint256 index) {\n\n StakerInfo storage info = stakerInfo[_staker];\n\n for (index = 0; index < info.pastDowntime.length; index++) {\n\n if (_period <= info.pastDowntime[index].endPeriod) {\n\n return index;\n\n }\n\n }\n\n }\n\n\n\n //------------------------Main methods------------------------\n\n /**\n\n * @notice Start or stop measuring the work of a staker\n\n * @param _staker Staker\n\n * @param _measureWork Value for `measureWork` parameter\n\n * @return Work that was previously done\n\n */\n\n function setWorkMeasurement(address _staker, bool _measureWork) external returns (uint256) {\n\n require(msg.sender == address(workLock));\n\n StakerInfo storage info = stakerInfo[_staker];\n\n if (info.flags.bitSet(MEASURE_WORK_INDEX) == _measureWork) {\n\n return info.completedWork;\n\n }\n\n info.flags = info.flags.toggleBit(MEASURE_WORK_INDEX);\n\n emit WorkMeasurementSet(_staker, _measureWork);\n\n return info.completedWork;\n\n }\n\n\n\n /**\n\n * @notice Bond worker\n\n * @param _worker Worker address. Must be a real address, not a contract\n\n */\n\n function bondWorker(address _worker) external onlyStaker {\n\n StakerInfo storage info = stakerInfo[msg.sender];\n\n // Specified worker is already bonded with this staker\n\n require(_worker != info.worker);\n\n uint16 currentPeriod = getCurrentPeriod();\n\n if (info.worker != address(0)) { // If this staker had a worker ...\n\n // Check that enough time has passed to change it\n\n require(currentPeriod >= info.workerStartPeriod.add16(minWorkerPeriods));\n\n // Remove the old relation \"worker->staker\"\n\n stakerFromWorker[info.worker] = address(0);\n\n }\n\n\n\n if (_worker != address(0)) {\n\n // Specified worker is already in use\n\n require(stakerFromWorker[_worker] == address(0));\n\n // Specified worker is a staker\n\n require(stakerInfo[_worker].subStakes.length == 0 || _worker == msg.sender);\n\n // Set new worker->staker relation\n\n stakerFromWorker[_worker] = msg.sender;\n\n }\n\n\n\n // Bond new worker (or unbond if _worker == address(0))\n\n info.worker = _worker;\n\n info.workerStartPeriod = currentPeriod;\n\n emit WorkerBonded(msg.sender, _worker, currentPeriod);\n\n }\n\n\n\n /**\n\n * @notice Set `reStake` parameter. If true then all staking rewards will be added to locked stake\n\n * Only if this parameter is not locked\n\n * @param _reStake Value for parameter\n\n */\n\n function setReStake(bool _reStake) external {\n\n require(!isReStakeLocked(msg.sender));\n\n StakerInfo storage info = stakerInfo[msg.sender];\n\n if (info.flags.bitSet(RE_STAKE_DISABLED_INDEX) == !_reStake) {\n\n return;\n\n }\n\n info.flags = info.flags.toggleBit(RE_STAKE_DISABLED_INDEX);\n\n emit ReStakeSet(msg.sender, _reStake);\n\n }\n\n\n\n /**\n\n * @notice Lock `reStake` parameter. Only if this parameter is not locked\n\n * @param _lockReStakeUntilPeriod Can't change `reStake` value until this period\n\n */\n\n function lockReStake(uint16 _lockReStakeUntilPeriod) external {\n\n require(!isReStakeLocked(msg.sender) &&\n\n _lockReStakeUntilPeriod > getCurrentPeriod());\n\n stakerInfo[msg.sender].lockReStakeUntilPeriod = _lockReStakeUntilPeriod;\n\n emit ReStakeLocked(msg.sender, _lockReStakeUntilPeriod);\n\n }\n\n\n\n /**\n\n * @notice Deposit tokens from WorkLock contract\n\n * @param _staker Staker address\n\n * @param _value Amount of tokens to deposit\n\n * @param _periods Amount of periods during which tokens will be locked\n\n */\n\n function depositFromWorkLock(\n\n address _staker,\n\n uint256 _value,\n\n uint16 _periods\n\n )\n\n external\n\n {\n\n require(msg.sender == address(workLock));\n\n StakerInfo storage info = stakerInfo[_staker];\n\n if (!info.flags.bitSet(WIND_DOWN_INDEX) && info.subStakes.length == 0) {\n\n info.flags = info.flags.toggleBit(WIND_DOWN_INDEX);\n\n emit WindDownSet(_staker, true);\n\n }\n\n deposit(_staker, msg.sender, MAX_SUB_STAKES, _value, _periods);\n\n }\n\n\n\n /**\n\n * @notice Set `windDown` parameter.\n\n * If true then stake's duration will be decreasing in each period with `commitToNextPeriod()`\n\n * @param _windDown Value for parameter\n\n */\n\n function setWindDown(bool _windDown) external {\n\n StakerInfo storage info = stakerInfo[msg.sender];\n\n if (info.flags.bitSet(WIND_DOWN_INDEX) == _windDown) {\n\n return;\n\n }\n\n info.flags = info.flags.toggleBit(WIND_DOWN_INDEX);\n\n emit WindDownSet(msg.sender, _windDown);\n\n\n\n // duration adjustment if next period is committed\n\n uint16 nextPeriod = getCurrentPeriod() + 1;\n\n if (info.nextCommittedPeriod != nextPeriod) {\n\n return;\n\n }\n\n\n\n // adjust sub-stakes duration for the new value of winding down parameter\n\n for (uint256 index = 0; index < info.subStakes.length; index++) {\n\n SubStakeInfo storage subStake = info.subStakes[index];\n\n // sub-stake does not have fixed last period when winding down is disabled\n\n if (!_windDown && subStake.lastPeriod == nextPeriod) {\n\n subStake.lastPeriod = 0;\n\n subStake.periods = 1;\n\n continue;\n\n }\n\n // this sub-stake is no longer affected by winding down parameter\n\n if (subStake.lastPeriod != 0 || subStake.periods == 0) {\n\n continue;\n\n }\n\n\n\n subStake.periods = _windDown ? subStake.periods - 1 : subStake.periods + 1;\n\n if (subStake.periods == 0) {\n\n subStake.lastPeriod = nextPeriod;\n\n }\n\n }\n\n }\n\n\n\n /**\n\n * @notice Activate/deactivate taking snapshots of balances\n\n * @param _enableSnapshots True to activate snapshots, False to deactivate\n\n */\n\n function setSnapshots(bool _enableSnapshots) external {\n\n StakerInfo storage info = stakerInfo[msg.sender];\n\n if (info.flags.bitSet(SNAPSHOTS_DISABLED_INDEX) == !_enableSnapshots) {\n\n return;\n\n }\n\n\n\n uint256 lastGlobalBalance = uint256(balanceHistory.lastValue());\n\n if(_enableSnapshots){\n\n info.history.addSnapshot(info.value);\n\n balanceHistory.addSnapshot(lastGlobalBalance + info.value);\n\n } else {\n\n info.history.addSnapshot(0);\n\n balanceHistory.addSnapshot(lastGlobalBalance - info.value);\n\n }\n\n info.flags = info.flags.toggleBit(SNAPSHOTS_DISABLED_INDEX);\n\n\n\n emit SnapshotSet(msg.sender, _enableSnapshots);\n\n }\n\n\n\n /**\n\n * @notice Adds a new snapshot to both the staker and global balance histories,\n\n * assuming the staker's balance was already changed\n\n * @param _info Reference to affected staker's struct\n\n * @param _addition Variance in balance. It can be positive or negative.\n\n */\n\n function addSnapshot(StakerInfo storage _info, int256 _addition) internal {\n\n if(!_info.flags.bitSet(SNAPSHOTS_DISABLED_INDEX)){\n\n _info.history.addSnapshot(_info.value);\n\n uint256 lastGlobalBalance = uint256(balanceHistory.lastValue());\n\n balanceHistory.addSnapshot(lastGlobalBalance.addSigned(_addition));\n\n }\n\n }\n\n\n\n\n\n /**\n\n * @notice Batch deposit. Allowed only initial deposit for each staker\n\n * @param _stakers Stakers\n\n * @param _numberOfSubStakes Number of sub-stakes which belong to staker in _values and _periods arrays\n\n * @param _values Amount of tokens to deposit for each staker\n\n * @param _periods Amount of periods during which tokens will be locked for each staker\n\n */\n\n function batchDeposit(\n\n address[] calldata _stakers,\n\n uint256[] calldata _numberOfSubStakes,\n\n uint256[] calldata _values,\n\n uint16[] calldata _periods\n\n )\n\n external\n\n {\n\n uint256 subStakesLength = _values.length;\n\n require(_stakers.length != 0 &&\n\n _stakers.length == _numberOfSubStakes.length &&\n\n subStakesLength >= _stakers.length &&\n\n _periods.length == subStakesLength);\n\n uint16 previousPeriod = getCurrentPeriod() - 1;\n\n uint16 nextPeriod = previousPeriod + 2;\n\n uint256 sumValue = 0;\n\n\n\n uint256 j = 0;\n\n for (uint256 i = 0; i < _stakers.length; i++) {\n\n address staker = _stakers[i];\n\n uint256 numberOfSubStakes = _numberOfSubStakes[i];\n\n uint256 endIndex = j + numberOfSubStakes;\n\n require(numberOfSubStakes > 0 && subStakesLength >= endIndex);\n\n StakerInfo storage info = stakerInfo[staker];\n\n require(info.subStakes.length == 0 && !info.flags.bitSet(SNAPSHOTS_DISABLED_INDEX));\n\n // A staker can't be a worker for another staker\n\n require(stakerFromWorker[staker] == address(0));\n\n stakers.push(staker);\n\n policyManager.register(staker, previousPeriod);\n\n\n\n for (; j < endIndex; j++) {\n\n uint256 value = _values[j];\n\n uint16 periods = _periods[j];\n\n require(value >= minAllowableLockedTokens && periods >= minLockedPeriods);\n\n info.value = info.value.add(value);\n\n info.subStakes.push(SubStakeInfo(nextPeriod, 0, periods, uint128(value)));\n\n sumValue = sumValue.add(value);\n\n emit Deposited(staker, value, periods);\n\n emit Locked(staker, value, nextPeriod, periods);\n\n }\n\n require(info.value <= maxAllowableLockedTokens);\n\n info.history.addSnapshot(info.value);\n\n }\n\n require(j == subStakesLength);\n\n uint256 lastGlobalBalance = uint256(balanceHistory.lastValue());\n\n balanceHistory.addSnapshot(lastGlobalBalance + sumValue);\n\n token.safeTransferFrom(msg.sender, address(this), sumValue);\n\n }\n\n\n\n /**\n\n * @notice Implementation of the receiveApproval(address,uint256,address,bytes) method\n\n * (see NuCypherToken contract). Deposit all tokens that were approved to transfer\n\n * @param _from Staker\n\n * @param _value Amount of tokens to deposit\n\n * @param _tokenContract Token contract address\n\n * @notice (param _extraData) Amount of periods during which tokens will be locked\n\n */\n\n function receiveApproval(\n\n address _from,\n\n uint256 _value,\n\n address _tokenContract,\n\n bytes calldata /* _extraData */\n\n )\n\n external\n\n {\n\n require(_tokenContract == address(token) && msg.sender == address(token));\n\n\n\n // Copy first 32 bytes from _extraData, according to calldata memory layout:\n\n //\n\n // 0x00: method signature 4 bytes\n\n // 0x04: _from 32 bytes after encoding\n\n // 0x24: _value 32 bytes after encoding\n\n // 0x44: _tokenContract 32 bytes after encoding\n\n // 0x64: _extraData pointer 32 bytes. Value must be 0x80 (offset of _extraData wrt to 1st parameter)\n\n // 0x84: _extraData length 32 bytes\n\n // 0xA4: _extraData data Length determined by previous variable\n\n //\n\n // See https://solidity.readthedocs.io/en/latest/abi-spec.html#examples\n\n\n\n uint256 payloadSize;\n\n uint256 payload;\n\n assembly {\n\n payloadSize := calldataload(0x84)\n\n payload := calldataload(0xA4)\n\n }\n\n payload = payload >> 8*(32 - payloadSize);\n\n deposit(_from, _from, MAX_SUB_STAKES, _value, uint16(payload));\n\n }\n\n\n\n /**\n\n * @notice Deposit tokens and create new sub-stake. Use this method to become a staker\n\n * @param _staker Staker\n\n * @param _value Amount of tokens to deposit\n\n * @param _periods Amount of periods during which tokens will be locked\n\n */\n\n function deposit(address _staker, uint256 _value, uint16 _periods) external {\n\n deposit(_staker, msg.sender, MAX_SUB_STAKES, _value, _periods);\n\n }\n\n\n\n /**\n\n * @notice Deposit tokens and increase lock amount of an existing sub-stake\n\n * @dev This is preferable way to stake tokens because will be fewer active sub-stakes in the result\n\n * @param _index Index of the sub stake\n\n * @param _value Amount of tokens which will be locked\n\n */\n\n function depositAndIncrease(uint256 _index, uint256 _value) external onlyStaker {\n\n require(_index < MAX_SUB_STAKES);\n\n deposit(msg.sender, msg.sender, _index, _value, 0);\n\n }\n\n\n\n /**\n\n * @notice Deposit tokens\n\n * @dev Specify either index and zero periods (for an existing sub-stake)\n\n * or index >= MAX_SUB_STAKES and real value for periods (for a new sub-stake), not both\n\n * @param _staker Staker\n\n * @param _payer Owner of tokens\n\n * @param _index Index of the sub stake\n\n * @param _value Amount of tokens to deposit\n\n * @param _periods Amount of periods during which tokens will be locked\n\n */\n\n function deposit(address _staker, address _payer, uint256 _index, uint256 _value, uint16 _periods) internal {\n\n require(_value != 0);\n\n StakerInfo storage info = stakerInfo[_staker];\n\n // A staker can't be a worker for another staker\n\n require(stakerFromWorker[_staker] == address(0) || stakerFromWorker[_staker] == info.worker);\n\n // initial stake of the staker\n\n if (info.subStakes.length == 0) {\n\n stakers.push(_staker);\n\n policyManager.register(_staker, getCurrentPeriod() - 1);\n\n }\n\n token.safeTransferFrom(_payer, address(this), _value);\n\n info.value += _value;\n\n lock(_staker, _index, _value, _periods);\n\n\n\n addSnapshot(info, int256(_value));\n\n if (_index >= MAX_SUB_STAKES) {\n\n emit Deposited(_staker, _value, _periods);\n\n } else {\n\n uint16 lastPeriod = getLastPeriodOfSubStake(_staker, _index);\n\n emit Deposited(_staker, _value, lastPeriod - getCurrentPeriod());\n\n }\n\n }\n\n\n\n /**\n\n * @notice Lock some tokens as a new sub-stake\n\n * @param _value Amount of tokens which will be locked\n\n * @param _periods Amount of periods during which tokens will be locked\n\n */\n\n function lockAndCreate(uint256 _value, uint16 _periods) external onlyStaker {\n\n lock(msg.sender, MAX_SUB_STAKES, _value, _periods);\n\n }\n\n\n\n /**\n\n * @notice Increase lock amount of an existing sub-stake\n\n * @param _index Index of the sub-stake\n\n * @param _value Amount of tokens which will be locked\n\n */\n\n function lockAndIncrease(uint256 _index, uint256 _value) external onlyStaker {\n\n require(_index < MAX_SUB_STAKES);\n\n lock(msg.sender, _index, _value, 0);\n\n }\n\n\n\n /**\n\n * @notice Lock some tokens as a stake\n\n * @dev Specify either index and zero periods (for an existing sub-stake)\n\n * or index >= MAX_SUB_STAKES and real value for periods (for a new sub-stake), not both\n\n * @param _staker Staker\n\n * @param _index Index of the sub stake\n\n * @param _value Amount of tokens which will be locked\n\n * @param _periods Amount of periods during which tokens will be locked\n\n */\n\n function lock(address _staker, uint256 _index, uint256 _value, uint16 _periods) internal {\n\n if (_index < MAX_SUB_STAKES) {\n\n require(_value > 0);\n\n } else {\n\n require(_value >= minAllowableLockedTokens && _periods >= minLockedPeriods);\n\n }\n\n\n\n uint16 currentPeriod = getCurrentPeriod();\n\n uint16 nextPeriod = currentPeriod + 1;\n\n StakerInfo storage info = stakerInfo[_staker];\n\n uint256 lockedTokens = getLockedTokens(info, currentPeriod, nextPeriod);\n\n uint256 requestedLockedTokens = _value.add(lockedTokens);\n\n require(requestedLockedTokens <= info.value && requestedLockedTokens <= maxAllowableLockedTokens);\n\n\n\n // next period is committed\n\n if (info.nextCommittedPeriod == nextPeriod) {\n\n lockedPerPeriod[nextPeriod] += _value;\n\n emit CommitmentMade(_staker, nextPeriod, _value);\n\n }\n\n\n\n // if index was provided then increase existing sub-stake\n\n if (_index < MAX_SUB_STAKES) {\n\n lockAndIncrease(info, currentPeriod, nextPeriod, _staker, _index, _value);\n\n // otherwise create new\n\n } else {\n\n lockAndCreate(info, nextPeriod, _staker, _value, _periods);\n\n }\n\n }\n\n\n\n /**\n\n * @notice Lock some tokens as a new sub-stake\n\n * @param _info Staker structure\n\n * @param _nextPeriod Next period\n\n * @param _staker Staker\n\n * @param _value Amount of tokens which will be locked\n\n * @param _periods Amount of periods during which tokens will be locked\n\n */\n\n function lockAndCreate(\n\n StakerInfo storage _info,\n\n uint16 _nextPeriod,\n\n address _staker,\n\n uint256 _value,\n\n uint16 _periods\n\n )\n\n internal\n\n {\n\n uint16 duration = _periods;\n\n // if winding down is enabled and next period is committed\n\n // then sub-stakes duration were decreased\n\n if (_info.nextCommittedPeriod == _nextPeriod && _info.flags.bitSet(WIND_DOWN_INDEX)) {\n\n duration -= 1;\n\n }\n\n saveSubStake(_info, _nextPeriod, 0, duration, _value);\n\n\n\n emit Locked(_staker, _value, _nextPeriod, _periods);\n\n }\n\n\n\n /**\n\n * @notice Increase lock amount of an existing sub-stake\n\n * @dev Probably will be created a new sub-stake but it will be active only one period\n\n * @param _info Staker structure\n\n * @param _currentPeriod Current period\n\n * @param _nextPeriod Next period\n\n * @param _staker Staker\n\n * @param _index Index of the sub-stake\n\n * @param _value Amount of tokens which will be locked\n\n */\n\n function lockAndIncrease(\n\n StakerInfo storage _info,\n\n uint16 _currentPeriod,\n\n uint16 _nextPeriod,\n\n address _staker,\n\n uint256 _index,\n\n uint256 _value\n\n )\n\n internal\n\n {\n\n SubStakeInfo storage subStake = _info.subStakes[_index];\n\n (, uint16 lastPeriod) = checkLastPeriodOfSubStake(_info, subStake, _currentPeriod);\n\n\n\n // create temporary sub-stake for current or previous committed periods\n\n // to leave locked amount in this period unchanged\n\n if (_info.currentCommittedPeriod != 0 &&\n\n _info.currentCommittedPeriod <= _currentPeriod ||\n\n _info.nextCommittedPeriod != 0 &&\n\n _info.nextCommittedPeriod <= _currentPeriod)\n\n {\n\n saveSubStake(_info, subStake.firstPeriod, _currentPeriod, 0, subStake.lockedValue);\n\n }\n\n\n\n subStake.lockedValue += uint128(_value);\n\n // all new locks should start from the next period\n\n subStake.firstPeriod = _nextPeriod;\n\n\n\n emit Locked(_staker, _value, _nextPeriod, lastPeriod - _currentPeriod);\n\n }\n\n\n\n /**\n\n * @notice Checks that last period of sub-stake is greater than the current period\n\n * @param _info Staker structure\n\n * @param _subStake Sub-stake structure\n\n * @param _currentPeriod Current period\n\n * @return startPeriod Start period. Use in the calculation of the last period of the sub stake\n\n * @return lastPeriod Last period of the sub stake\n\n */\n\n function checkLastPeriodOfSubStake(\n\n StakerInfo storage _info,\n\n SubStakeInfo storage _subStake,\n\n uint16 _currentPeriod\n\n )\n\n internal view returns (uint16 startPeriod, uint16 lastPeriod)\n\n {\n\n startPeriod = getStartPeriod(_info, _currentPeriod);\n\n lastPeriod = getLastPeriodOfSubStake(_subStake, startPeriod);\n\n // The sub stake must be active at least in the next period\n\n require(lastPeriod > _currentPeriod);\n\n }\n\n\n\n /**\n\n * @notice Save sub stake. First tries to override inactive sub stake\n\n * @dev Inactive sub stake means that last period of sub stake has been surpassed and already rewarded\n\n * @param _info Staker structure\n\n * @param _firstPeriod First period of the sub stake\n\n * @param _lastPeriod Last period of the sub stake\n\n * @param _periods Duration of the sub stake in periods\n\n * @param _lockedValue Amount of locked tokens\n\n */\n\n function saveSubStake(\n\n StakerInfo storage _info,\n\n uint16 _firstPeriod,\n\n uint16 _lastPeriod,\n\n uint16 _periods,\n\n uint256 _lockedValue\n\n )\n\n internal\n\n {\n\n for (uint256 i = 0; i < _info.subStakes.length; i++) {\n\n SubStakeInfo storage subStake = _info.subStakes[i];\n\n if (subStake.lastPeriod != 0 &&\n\n (_info.currentCommittedPeriod == 0 ||\n\n subStake.lastPeriod < _info.currentCommittedPeriod) &&\n\n (_info.nextCommittedPeriod == 0 ||\n\n subStake.lastPeriod < _info.nextCommittedPeriod))\n\n {\n\n subStake.firstPeriod = _firstPeriod;\n\n subStake.lastPeriod = _lastPeriod;\n\n subStake.periods = _periods;\n\n subStake.lockedValue = uint128(_lockedValue);\n\n return;\n\n }\n\n }\n\n require(_info.subStakes.length < MAX_SUB_STAKES);\n\n _info.subStakes.push(SubStakeInfo(_firstPeriod, _lastPeriod, _periods, uint128(_lockedValue)));\n\n }\n\n\n\n /**\n\n * @notice Divide sub stake into two parts\n\n * @param _index Index of the sub stake\n\n * @param _newValue New sub stake value\n\n * @param _periods Amount of periods for extending sub stake\n\n */\n\n function divideStake(uint256 _index, uint256 _newValue, uint16 _periods) external onlyStaker {\n\n StakerInfo storage info = stakerInfo[msg.sender];\n\n require(_newValue >= minAllowableLockedTokens && _periods > 0);\n\n SubStakeInfo storage subStake = info.subStakes[_index];\n\n uint16 currentPeriod = getCurrentPeriod();\n\n (, uint16 lastPeriod) = checkLastPeriodOfSubStake(info, subStake, currentPeriod);\n\n\n\n uint256 oldValue = subStake.lockedValue;\n\n subStake.lockedValue = uint128(oldValue.sub(_newValue));\n\n require(subStake.lockedValue >= minAllowableLockedTokens);\n\n uint16 requestedPeriods = subStake.periods.add16(_periods);\n\n saveSubStake(info, subStake.firstPeriod, 0, requestedPeriods, _newValue);\n\n emit Divided(msg.sender, oldValue, lastPeriod, _newValue, _periods);\n\n emit Locked(msg.sender, _newValue, subStake.firstPeriod, requestedPeriods);\n\n }\n\n\n\n /**\n\n * @notice Prolong active sub stake\n\n * @param _index Index of the sub stake\n\n * @param _periods Amount of periods for extending sub stake\n\n */\n\n function prolongStake(uint256 _index, uint16 _periods) external onlyStaker {\n\n StakerInfo storage info = stakerInfo[msg.sender];\n\n // Incorrect parameters\n\n require(_periods > 0);\n\n SubStakeInfo storage subStake = info.subStakes[_index];\n\n uint16 currentPeriod = getCurrentPeriod();\n\n (uint16 startPeriod, uint16 lastPeriod) = checkLastPeriodOfSubStake(info, subStake, currentPeriod);\n\n\n\n subStake.periods = subStake.periods.add16(_periods);\n\n // if the sub stake ends in the next committed period then reset the `lastPeriod` field\n\n if (lastPeriod == startPeriod) {\n\n subStake.lastPeriod = 0;\n\n }\n\n // The extended sub stake must not be less than the minimum value\n\n require(uint32(lastPeriod - currentPeriod) + _periods >= minLockedPeriods);\n\n emit Locked(msg.sender, subStake.lockedValue, lastPeriod + 1, _periods);\n\n emit Prolonged(msg.sender, subStake.lockedValue, lastPeriod, _periods);\n\n }\n\n\n\n /**\n\n * @notice Merge two sub-stakes into one if their last periods are equal\n\n * @dev It's possible that both sub-stakes will be active after this transaction.\n\n * But only one of them will be active until next call `commitToNextPeriod` (in the next period)\n\n * @param _index1 Index of the first sub-stake\n\n * @param _index2 Index of the second sub-stake\n\n */\n\n function mergeStake(uint256 _index1, uint256 _index2) external onlyStaker {\n\n require(_index1 != _index2); // must be different sub-stakes\n\n\n\n StakerInfo storage info = stakerInfo[msg.sender];\n\n SubStakeInfo storage subStake1 = info.subStakes[_index1];\n\n SubStakeInfo storage subStake2 = info.subStakes[_index2];\n\n uint16 currentPeriod = getCurrentPeriod();\n\n\n\n (, uint16 lastPeriod1) = checkLastPeriodOfSubStake(info, subStake1, currentPeriod);\n\n (, uint16 lastPeriod2) = checkLastPeriodOfSubStake(info, subStake2, currentPeriod);\n\n // both sub-stakes must have equal last period to be mergeable\n\n require(lastPeriod1 == lastPeriod2);\n\n emit Merged(msg.sender, subStake1.lockedValue, subStake2.lockedValue, lastPeriod1);\n\n\n\n if (subStake1.firstPeriod == subStake2.firstPeriod) {\n\n subStake1.lockedValue += subStake2.lockedValue;\n\n subStake2.lastPeriod = 1;\n\n subStake2.periods = 0;\n\n } else if (subStake1.firstPeriod > subStake2.firstPeriod) {\n\n subStake1.lockedValue += subStake2.lockedValue;\n\n subStake2.lastPeriod = subStake1.firstPeriod - 1;\n\n subStake2.periods = 0;\n\n } else {\n\n subStake2.lockedValue += subStake1.lockedValue;\n\n subStake1.lastPeriod = subStake2.firstPeriod - 1;\n\n subStake1.periods = 0;\n\n }\n\n }\n\n\n\n /**\n\n * @notice Remove unused sub-stake to decrease gas cost for several methods\n\n */\n\n function removeUnusedSubStake(uint16 _index) external onlyStaker {\n\n StakerInfo storage info = stakerInfo[msg.sender];\n\n\n\n uint256 lastIndex = info.subStakes.length - 1;\n\n SubStakeInfo storage subStake = info.subStakes[_index];\n\n require(subStake.lastPeriod != 0 &&\n\n (info.currentCommittedPeriod == 0 ||\n\n subStake.lastPeriod < info.currentCommittedPeriod) &&\n\n (info.nextCommittedPeriod == 0 ||\n\n subStake.lastPeriod < info.nextCommittedPeriod));\n\n\n\n if (_index != lastIndex) {\n\n SubStakeInfo storage lastSubStake = info.subStakes[lastIndex];\n\n subStake.firstPeriod = lastSubStake.firstPeriod;\n\n subStake.lastPeriod = lastSubStake.lastPeriod;\n\n subStake.periods = lastSubStake.periods;\n\n subStake.lockedValue = lastSubStake.lockedValue;\n\n }\n\n info.subStakes.pop();\n\n }\n\n\n\n /**\n\n * @notice Withdraw available amount of tokens to staker\n\n * @param _value Amount of tokens to withdraw\n\n */\n\n function withdraw(uint256 _value) external onlyStaker {\n\n uint16 currentPeriod = getCurrentPeriod();\n\n uint16 nextPeriod = currentPeriod + 1;\n\n StakerInfo storage info = stakerInfo[msg.sender];\n\n // the max locked tokens in most cases will be in the current period\n\n // but when the staker locks more then we should use the next period\n\n uint256 lockedTokens = Math.max(getLockedTokens(info, currentPeriod, nextPeriod),\n\n getLockedTokens(info, currentPeriod, currentPeriod));\n\n require(_value <= info.value.sub(lockedTokens));\n\n info.value -= _value;\n\n\n\n addSnapshot(info, - int256(_value));\n\n token.safeTransfer(msg.sender, _value);\n\n emit Withdrawn(msg.sender, _value);\n\n\n\n // unbond worker if staker withdraws last portion of NU\n\n if (info.value == 0 &&\n\n info.nextCommittedPeriod == 0 &&\n\n info.worker != address(0))\n\n {\n\n stakerFromWorker[info.worker] = address(0);\n\n info.worker = address(0);\n\n emit WorkerBonded(msg.sender, address(0), currentPeriod);\n\n }\n\n }\n\n\n\n /**\n\n * @notice Make a commitment to the next period and mint for the previous period\n\n */\n\n function commitToNextPeriod() external isInitialized {\n\n address staker = stakerFromWorker[msg.sender];\n\n StakerInfo storage info = stakerInfo[staker];\n\n // Staker must have a stake to make a commitment\n\n require(info.value > 0);\n\n // Only worker with real address can make a commitment\n\n require(msg.sender == tx.origin);\n\n\n\n uint16 lastCommittedPeriod = getLastCommittedPeriod(staker);\n\n (uint16 processedPeriod1, uint16 processedPeriod2) = mint(staker);\n\n uint16 currentPeriod = getCurrentPeriod();\n\n uint16 nextPeriod = currentPeriod + 1;\n\n\n\n // the period has already been committed\n\n if (info.nextCommittedPeriod == nextPeriod) {\n\n return;\n\n }\n\n\n\n uint256 lockedTokens = getLockedTokens(info, currentPeriod, nextPeriod);\n\n require(lockedTokens > 0);\n\n lockedPerPeriod[nextPeriod] += lockedTokens;\n\n\n\n info.currentCommittedPeriod = info.nextCommittedPeriod;\n\n info.nextCommittedPeriod = nextPeriod;\n\n\n\n decreaseSubStakesDuration(info, nextPeriod);\n\n\n\n // staker was inactive for several periods\n\n if (lastCommittedPeriod < currentPeriod) {\n\n info.pastDowntime.push(Downtime(lastCommittedPeriod + 1, currentPeriod));\n\n }\n\n\n\n policyManager.ping(staker, processedPeriod1, processedPeriod2, nextPeriod);\n\n emit CommitmentMade(staker, nextPeriod, lockedTokens);\n\n }\n\n\n\n /**\n\n * @notice Decrease sub-stakes duration if `windDown` is enabled\n\n */\n\n function decreaseSubStakesDuration(StakerInfo storage _info, uint16 _nextPeriod) internal {\n\n if (!_info.flags.bitSet(WIND_DOWN_INDEX)) {\n\n return;\n\n }\n\n for (uint256 index = 0; index < _info.subStakes.length; index++) {\n\n SubStakeInfo storage subStake = _info.subStakes[index];\n\n if (subStake.lastPeriod != 0 || subStake.periods == 0) {\n\n continue;\n\n }\n\n subStake.periods--;\n\n if (subStake.periods == 0) {\n\n subStake.lastPeriod = _nextPeriod;\n\n }\n\n }\n\n }\n\n\n\n /**\n\n * @notice Mint tokens for previous periods if staker locked their tokens and made a commitment\n\n */\n\n function mint() external onlyStaker {\n\n // save last committed period to the storage if both periods will be empty after minting\n\n // because we won't be able to calculate last committed period\n\n // see getLastCommittedPeriod(address)\n\n StakerInfo storage info = stakerInfo[msg.sender];\n\n uint16 previousPeriod = getCurrentPeriod() - 1;\n\n if (info.nextCommittedPeriod <= previousPeriod && info.nextCommittedPeriod != 0) {\n\n info.lastCommittedPeriod = info.nextCommittedPeriod;\n\n }\n\n (uint16 processedPeriod1, uint16 processedPeriod2) = mint(msg.sender);\n\n\n\n if (processedPeriod1 != 0 || processedPeriod2 != 0) {\n\n policyManager.ping(msg.sender, processedPeriod1, processedPeriod2, 0);\n\n }\n\n }\n\n\n\n /**\n\n * @notice Mint tokens for previous periods if staker locked their tokens and made a commitment\n\n * @param _staker Staker\n\n * @return processedPeriod1 Processed period: currentCommittedPeriod or zero\n\n * @return processedPeriod2 Processed period: nextCommittedPeriod or zero\n\n */\n\n function mint(address _staker) internal returns (uint16 processedPeriod1, uint16 processedPeriod2) {\n\n uint16 currentPeriod = getCurrentPeriod();\n\n uint16 previousPeriod = currentPeriod - 1;\n\n StakerInfo storage info = stakerInfo[_staker];\n\n\n\n if (info.nextCommittedPeriod == 0 ||\n\n info.currentCommittedPeriod == 0 &&\n\n info.nextCommittedPeriod > previousPeriod ||\n\n info.currentCommittedPeriod > previousPeriod) {\n\n return (0, 0);\n\n }\n\n\n\n uint16 startPeriod = getStartPeriod(info, currentPeriod);\n\n uint256 reward = 0;\n\n bool reStake = !info.flags.bitSet(RE_STAKE_DISABLED_INDEX);\n\n\n\n if (info.currentCommittedPeriod != 0) {\n\n reward = mint(info, info.currentCommittedPeriod, currentPeriod, startPeriod, reStake);\n\n processedPeriod1 = info.currentCommittedPeriod;\n\n info.currentCommittedPeriod = 0;\n\n if (reStake) {\n\n lockedPerPeriod[info.nextCommittedPeriod] += reward;\n\n }\n\n }\n\n if (info.nextCommittedPeriod <= previousPeriod) {\n\n reward += mint(info, info.nextCommittedPeriod, currentPeriod, startPeriod, reStake);\n\n processedPeriod2 = info.nextCommittedPeriod;\n\n info.nextCommittedPeriod = 0;\n\n }\n\n\n\n info.value += reward;\n\n if (info.flags.bitSet(MEASURE_WORK_INDEX)) {\n\n info.completedWork += reward;\n\n }\n\n\n\n addSnapshot(info, int256(reward));\n\n emit Minted(_staker, previousPeriod, reward);\n\n }\n\n\n\n /**\n\n * @notice Calculate reward for one period\n\n * @param _info Staker structure\n\n * @param _mintingPeriod Period for minting calculation\n\n * @param _currentPeriod Current period\n\n * @param _startPeriod Pre-calculated start period\n\n */\n\n function mint(\n\n StakerInfo storage _info,\n\n uint16 _mintingPeriod,\n\n uint16 _currentPeriod,\n\n uint16 _startPeriod,\n\n bool _reStake\n\n )\n\n internal returns (uint256 reward)\n\n {\n\n reward = 0;\n\n for (uint256 i = 0; i < _info.subStakes.length; i++) {\n\n SubStakeInfo storage subStake = _info.subStakes[i];\n\n uint16 lastPeriod = getLastPeriodOfSubStake(subStake, _startPeriod);\n\n if (subStake.firstPeriod <= _mintingPeriod && lastPeriod >= _mintingPeriod) {\n\n uint256 subStakeReward = mint(\n\n _currentPeriod,\n\n subStake.lockedValue,\n\n lockedPerPeriod[_mintingPeriod],\n\n lastPeriod.sub16(_mintingPeriod));\n\n reward += subStakeReward;\n\n if (_reStake) {\n\n subStake.lockedValue += uint128(subStakeReward);\n\n }\n\n }\n\n }\n\n return reward;\n\n }\n\n\n\n //-------------------------Slashing-------------------------\n\n /**\n\n * @notice Slash the staker's stake and reward the investigator\n\n * @param _staker Staker's address\n\n * @param _penalty Penalty\n\n * @param _investigator Investigator\n\n * @param _reward Reward for the investigator\n\n */\n\n function slashStaker(\n\n address _staker,\n\n uint256 _penalty,\n\n address _investigator,\n\n uint256 _reward\n\n )\n\n public isInitialized\n\n {\n\n require(msg.sender == address(adjudicator));\n\n require(_penalty > 0);\n\n StakerInfo storage info = stakerInfo[_staker];\n\n if (info.value <= _penalty) {\n\n _penalty = info.value;\n\n }\n\n info.value -= _penalty;\n\n if (_reward > _penalty) {\n\n _reward = _penalty;\n\n }\n\n\n\n uint16 currentPeriod = getCurrentPeriod();\n\n uint16 nextPeriod = currentPeriod + 1;\n\n uint16 startPeriod = getStartPeriod(info, currentPeriod);\n\n\n\n (uint256 currentLock, uint256 nextLock, uint256 currentAndNextLock, uint256 shortestSubStakeIndex) =\n\n getLockedTokensAndShortestSubStake(info, currentPeriod, nextPeriod, startPeriod);\n\n\n\n // Decrease the stake if amount of locked tokens in the current period more than staker has\n\n uint256 lockedTokens = currentLock + currentAndNextLock;\n\n if (info.value < lockedTokens) {\n\n decreaseSubStakes(info, lockedTokens - info.value, currentPeriod, startPeriod, shortestSubStakeIndex);\n\n }\n\n // Decrease the stake if amount of locked tokens in the next period more than staker has\n\n if (nextLock > 0) {\n\n lockedTokens = nextLock + currentAndNextLock -\n\n (currentAndNextLock > info.value ? currentAndNextLock - info.value : 0);\n\n if (info.value < lockedTokens) {\n\n decreaseSubStakes(info, lockedTokens - info.value, nextPeriod, startPeriod, MAX_SUB_STAKES);\n\n }\n\n }\n\n\n\n emit Slashed(_staker, _penalty, _investigator, _reward);\n\n if (_penalty > _reward) {\n\n unMint(_penalty - _reward);\n\n }\n\n // TODO change to withdrawal pattern (#1499)\n\n if (_reward > 0) {\n\n token.safeTransfer(_investigator, _reward);\n\n }\n\n\n\n addSnapshot(info, - int256(_penalty));\n\n\n\n }\n\n\n\n /**\n\n * @notice Get the value of locked tokens for a staker in the current and the next period\n\n * and find the shortest sub stake\n\n * @param _info Staker structure\n\n * @param _currentPeriod Current period\n\n * @param _nextPeriod Next period\n\n * @param _startPeriod Pre-calculated start period\n\n * @return currentLock Amount of tokens that locked in the current period and unlocked in the next period\n\n * @return nextLock Amount of tokens that locked in the next period and not locked in the current period\n\n * @return currentAndNextLock Amount of tokens that locked in the current period and in the next period\n\n * @return shortestSubStakeIndex Index of the shortest sub stake\n\n */\n\n function getLockedTokensAndShortestSubStake(\n\n StakerInfo storage _info,\n\n uint16 _currentPeriod,\n\n uint16 _nextPeriod,\n\n uint16 _startPeriod\n\n )\n\n internal view returns (\n\n uint256 currentLock,\n\n uint256 nextLock,\n\n uint256 currentAndNextLock,\n\n uint256 shortestSubStakeIndex\n\n )\n\n {\n\n uint16 minDuration = MAX_UINT16;\n\n uint16 minLastPeriod = MAX_UINT16;\n\n shortestSubStakeIndex = MAX_SUB_STAKES;\n\n currentLock = 0;\n\n nextLock = 0;\n\n currentAndNextLock = 0;\n\n\n\n for (uint256 i = 0; i < _info.subStakes.length; i++) {\n\n SubStakeInfo storage subStake = _info.subStakes[i];\n\n uint16 lastPeriod = getLastPeriodOfSubStake(subStake, _startPeriod);\n\n if (lastPeriod < subStake.firstPeriod) {\n\n continue;\n\n }\n\n if (subStake.firstPeriod <= _currentPeriod &&\n\n lastPeriod >= _nextPeriod) {\n\n currentAndNextLock += subStake.lockedValue;\n\n } else if (subStake.firstPeriod <= _currentPeriod &&\n\n lastPeriod >= _currentPeriod) {\n\n currentLock += subStake.lockedValue;\n\n } else if (subStake.firstPeriod <= _nextPeriod &&\n\n lastPeriod >= _nextPeriod) {\n\n nextLock += subStake.lockedValue;\n\n }\n\n uint16 duration = lastPeriod - subStake.firstPeriod;\n\n if (subStake.firstPeriod <= _currentPeriod &&\n\n lastPeriod >= _currentPeriod &&\n\n (lastPeriod < minLastPeriod ||\n\n lastPeriod == minLastPeriod && duration < minDuration))\n\n {\n\n shortestSubStakeIndex = i;\n\n minDuration = duration;\n\n minLastPeriod = lastPeriod;\n\n }\n\n }\n\n }\n\n\n\n /**\n\n * @notice Decrease short sub stakes\n\n * @param _info Staker structure\n\n * @param _penalty Penalty rate\n\n * @param _decreasePeriod The period when the decrease begins\n\n * @param _startPeriod Pre-calculated start period\n\n * @param _shortestSubStakeIndex Index of the shortest period\n\n */\n\n function decreaseSubStakes(\n\n StakerInfo storage _info,\n\n uint256 _penalty,\n\n uint16 _decreasePeriod,\n\n uint16 _startPeriod,\n\n uint256 _shortestSubStakeIndex\n\n )\n\n internal\n\n {\n\n SubStakeInfo storage shortestSubStake = _info.subStakes[0];\n\n uint16 minSubStakeLastPeriod = MAX_UINT16;\n\n uint16 minSubStakeDuration = MAX_UINT16;\n\n while(_penalty > 0) {\n\n if (_shortestSubStakeIndex < MAX_SUB_STAKES) {\n\n shortestSubStake = _info.subStakes[_shortestSubStakeIndex];\n\n minSubStakeLastPeriod = getLastPeriodOfSubStake(shortestSubStake, _startPeriod);\n\n minSubStakeDuration = minSubStakeLastPeriod - shortestSubStake.firstPeriod;\n\n _shortestSubStakeIndex = MAX_SUB_STAKES;\n\n } else {\n\n (shortestSubStake, minSubStakeDuration, minSubStakeLastPeriod) =\n\n getShortestSubStake(_info, _decreasePeriod, _startPeriod);\n\n }\n\n if (minSubStakeDuration == MAX_UINT16) {\n\n break;\n\n }\n\n uint256 appliedPenalty = _penalty;\n\n if (_penalty < shortestSubStake.lockedValue) {\n\n shortestSubStake.lockedValue -= uint128(_penalty);\n\n saveOldSubStake(_info, shortestSubStake.firstPeriod, _penalty, _decreasePeriod);\n\n _penalty = 0;\n\n } else {\n\n shortestSubStake.lastPeriod = _decreasePeriod - 1;\n\n _penalty -= shortestSubStake.lockedValue;\n\n appliedPenalty = shortestSubStake.lockedValue;\n\n }\n\n if (_info.currentCommittedPeriod >= _decreasePeriod &&\n\n _info.currentCommittedPeriod <= minSubStakeLastPeriod)\n\n {\n\n lockedPerPeriod[_info.currentCommittedPeriod] -= appliedPenalty;\n\n }\n\n if (_info.nextCommittedPeriod >= _decreasePeriod &&\n\n _info.nextCommittedPeriod <= minSubStakeLastPeriod)\n\n {\n\n lockedPerPeriod[_info.nextCommittedPeriod] -= appliedPenalty;\n\n }\n\n }\n\n }\n\n\n\n /**\n\n * @notice Get the shortest sub stake\n\n * @param _info Staker structure\n\n * @param _currentPeriod Current period\n\n * @param _startPeriod Pre-calculated start period\n\n * @return shortestSubStake The shortest sub stake\n\n * @return minSubStakeDuration Duration of the shortest sub stake\n\n * @return minSubStakeLastPeriod Last period of the shortest sub stake\n\n */\n\n function getShortestSubStake(\n\n StakerInfo storage _info,\n\n uint16 _currentPeriod,\n\n uint16 _startPeriod\n\n )\n\n internal view returns (\n\n SubStakeInfo storage shortestSubStake,\n\n uint16 minSubStakeDuration,\n\n uint16 minSubStakeLastPeriod\n\n )\n\n {\n\n shortestSubStake = shortestSubStake;\n\n minSubStakeDuration = MAX_UINT16;\n\n minSubStakeLastPeriod = MAX_UINT16;\n\n for (uint256 i = 0; i < _info.subStakes.length; i++) {\n\n SubStakeInfo storage subStake = _info.subStakes[i];\n\n uint16 lastPeriod = getLastPeriodOfSubStake(subStake, _startPeriod);\n\n if (lastPeriod < subStake.firstPeriod) {\n\n continue;\n\n }\n\n uint16 duration = lastPeriod - subStake.firstPeriod;\n\n if (subStake.firstPeriod <= _currentPeriod &&\n\n lastPeriod >= _currentPeriod &&\n\n (lastPeriod < minSubStakeLastPeriod ||\n\n lastPeriod == minSubStakeLastPeriod && duration < minSubStakeDuration))\n\n {\n\n shortestSubStake = subStake;\n\n minSubStakeDuration = duration;\n\n minSubStakeLastPeriod = lastPeriod;\n\n }\n\n }\n\n }\n\n\n\n /**\n\n * @notice Save the old sub stake values to prevent decreasing reward for the previous period\n\n * @dev Saving happens only if the previous period is committed\n\n * @param _info Staker structure\n\n * @param _firstPeriod First period of the old sub stake\n\n * @param _lockedValue Locked value of the old sub stake\n\n * @param _currentPeriod Current period, when the old sub stake is already unlocked\n\n */\n\n function saveOldSubStake(\n\n StakerInfo storage _info,\n\n uint16 _firstPeriod,\n\n uint256 _lockedValue,\n\n uint16 _currentPeriod\n\n )\n\n internal\n\n {\n\n // Check that the old sub stake should be saved\n\n bool oldCurrentCommittedPeriod = _info.currentCommittedPeriod != 0 &&\n\n _info.currentCommittedPeriod < _currentPeriod;\n\n bool oldnextCommittedPeriod = _info.nextCommittedPeriod != 0 &&\n\n _info.nextCommittedPeriod < _currentPeriod;\n\n bool crosscurrentCommittedPeriod = oldCurrentCommittedPeriod && _info.currentCommittedPeriod >= _firstPeriod;\n\n bool crossnextCommittedPeriod = oldnextCommittedPeriod && _info.nextCommittedPeriod >= _firstPeriod;\n\n if (!crosscurrentCommittedPeriod && !crossnextCommittedPeriod) {\n\n return;\n\n }\n\n // Try to find already existent proper old sub stake\n\n uint16 previousPeriod = _currentPeriod - 1;\n\n for (uint256 i = 0; i < _info.subStakes.length; i++) {\n\n SubStakeInfo storage subStake = _info.subStakes[i];\n\n if (subStake.lastPeriod == previousPeriod &&\n\n ((crosscurrentCommittedPeriod ==\n\n (oldCurrentCommittedPeriod && _info.currentCommittedPeriod >= subStake.firstPeriod)) &&\n\n (crossnextCommittedPeriod ==\n\n (oldnextCommittedPeriod && _info.nextCommittedPeriod >= subStake.firstPeriod))))\n\n {\n\n subStake.lockedValue += uint128(_lockedValue);\n\n return;\n\n }\n\n }\n\n saveSubStake(_info, _firstPeriod, previousPeriod, 0, _lockedValue);\n\n }\n\n\n\n //-------------Additional getters for stakers info-------------\n\n /**\n\n * @notice Return the length of the array of stakers\n\n */\n\n function getStakersLength() external view returns (uint256) {\n\n return stakers.length;\n\n }\n\n\n\n /**\n\n * @notice Return the length of the array of sub stakes\n\n */\n\n function getSubStakesLength(address _staker) external view returns (uint256) {\n\n return stakerInfo[_staker].subStakes.length;\n\n }\n\n\n\n /**\n\n * @notice Return the information about sub stake\n\n */\n\n function getSubStakeInfo(address _staker, uint256 _index)\n\n // TODO change to structure when ABIEncoderV2 is released (#1501)\n\n// public view returns (SubStakeInfo)\n\n // TODO \"virtual\" only for tests, probably will be removed after #1512\n\n external view virtual returns (uint16 firstPeriod, uint16 lastPeriod, uint16 periods, uint128 lockedValue)\n\n {\n\n SubStakeInfo storage info = stakerInfo[_staker].subStakes[_index];\n\n firstPeriod = info.firstPeriod;\n\n lastPeriod = info.lastPeriod;\n\n periods = info.periods;\n\n lockedValue = info.lockedValue;\n\n }\n\n\n\n /**\n\n * @notice Return the length of the array of past downtime\n\n */\n\n function getPastDowntimeLength(address _staker) external view returns (uint256) {\n\n return stakerInfo[_staker].pastDowntime.length;\n\n }\n\n\n\n /**\n\n * @notice Return the information about past downtime\n\n */\n\n function getPastDowntime(address _staker, uint256 _index)\n\n // TODO change to structure when ABIEncoderV2 is released (#1501)\n\n// public view returns (Downtime)\n\n external view returns (uint16 startPeriod, uint16 endPeriod)\n\n {\n\n Downtime storage downtime = stakerInfo[_staker].pastDowntime[_index];\n\n startPeriod = downtime.startPeriod;\n\n endPeriod = downtime.endPeriod;\n\n }\n\n\n\n //------------------ ERC900 connectors ----------------------\n\n\n\n function totalStakedForAt(address _owner, uint256 _blockNumber) public view override returns (uint256){\n\n return stakerInfo[_owner].history.getValueAt(_blockNumber);\n\n }\n\n\n\n function totalStakedAt(uint256 _blockNumber) public view override returns (uint256){\n\n return balanceHistory.getValueAt(_blockNumber);\n\n }\n\n\n\n function supportsHistory() external pure override returns (bool){\n\n return true;\n\n }\n\n\n\n //------------------------Upgradeable------------------------\n\n /**\n\n * @dev Get StakerInfo structure by delegatecall\n\n */\n\n function delegateGetStakerInfo(address _target, bytes32 _staker)\n\n internal returns (StakerInfo memory result)\n\n {\n\n bytes32 memoryAddress = delegateGetData(_target, this.stakerInfo.selector, 1, _staker, 0);\n\n assembly {\n\n result := memoryAddress\n\n }\n\n }\n\n\n\n /**\n\n * @dev Get SubStakeInfo structure by delegatecall\n\n */\n\n function delegateGetSubStakeInfo(address _target, bytes32 _staker, uint256 _index)\n\n internal returns (SubStakeInfo memory result)\n\n {\n\n bytes32 memoryAddress = delegateGetData(\n\n _target, this.getSubStakeInfo.selector, 2, _staker, bytes32(_index));\n\n assembly {\n\n result := memoryAddress\n\n }\n\n }\n\n\n\n /**\n\n * @dev Get Downtime structure by delegatecall\n\n */\n\n function delegateGetPastDowntime(address _target, bytes32 _staker, uint256 _index)\n\n internal returns (Downtime memory result)\n\n {\n\n bytes32 memoryAddress = delegateGetData(\n\n _target, this.getPastDowntime.selector, 2, _staker, bytes32(_index));\n\n assembly {\n\n result := memoryAddress\n\n }\n\n }\n\n\n\n /// @dev the `onlyWhileUpgrading` modifier works through a call to the parent `verifyState`\n\n function verifyState(address _testTarget) public override virtual {\n\n super.verifyState(_testTarget);\n\n require(address(delegateGet(_testTarget, this.policyManager.selector)) == address(policyManager));\n\n require(address(delegateGet(_testTarget, this.adjudicator.selector)) == address(adjudicator));\n\n require(address(delegateGet(_testTarget, this.workLock.selector)) == address(workLock));\n\n require(delegateGet(_testTarget, this.lockedPerPeriod.selector,\n\n bytes32(bytes2(RESERVED_PERIOD))) == lockedPerPeriod[RESERVED_PERIOD]);\n\n require(address(delegateGet(_testTarget, this.stakerFromWorker.selector, bytes32(0))) ==\n\n stakerFromWorker[address(0)]);\n\n\n\n require(delegateGet(_testTarget, this.getStakersLength.selector) == stakers.length);\n\n if (stakers.length == 0) {\n\n return;\n\n }\n\n address stakerAddress = stakers[0];\n\n require(address(uint160(delegateGet(_testTarget, this.stakers.selector, 0))) == stakerAddress);\n\n StakerInfo storage info = stakerInfo[stakerAddress];\n\n bytes32 staker = bytes32(uint256(stakerAddress));\n\n StakerInfo memory infoToCheck = delegateGetStakerInfo(_testTarget, staker);\n\n require(infoToCheck.value == info.value &&\n\n infoToCheck.currentCommittedPeriod == info.currentCommittedPeriod &&\n\n infoToCheck.nextCommittedPeriod == info.nextCommittedPeriod &&\n\n infoToCheck.flags == info.flags &&\n\n infoToCheck.lockReStakeUntilPeriod == info.lockReStakeUntilPeriod &&\n\n infoToCheck.lastCommittedPeriod == info.lastCommittedPeriod &&\n\n infoToCheck.completedWork == info.completedWork &&\n\n infoToCheck.worker == info.worker &&\n\n infoToCheck.workerStartPeriod == info.workerStartPeriod);\n\n\n\n require(delegateGet(_testTarget, this.getPastDowntimeLength.selector, staker) ==\n\n info.pastDowntime.length);\n\n for (uint256 i = 0; i < info.pastDowntime.length && i < MAX_CHECKED_VALUES; i++) {\n\n Downtime storage downtime = info.pastDowntime[i];\n\n Downtime memory downtimeToCheck = delegateGetPastDowntime(_testTarget, staker, i);\n\n require(downtimeToCheck.startPeriod == downtime.startPeriod &&\n\n downtimeToCheck.endPeriod == downtime.endPeriod);\n\n }\n\n\n\n require(delegateGet(_testTarget, this.getSubStakesLength.selector, staker) == info.subStakes.length);\n\n for (uint256 i = 0; i < info.subStakes.length && i < MAX_CHECKED_VALUES; i++) {\n\n SubStakeInfo storage subStakeInfo = info.subStakes[i];\n\n SubStakeInfo memory subStakeInfoToCheck = delegateGetSubStakeInfo(_testTarget, staker, i);\n\n require(subStakeInfoToCheck.firstPeriod == subStakeInfo.firstPeriod &&\n\n subStakeInfoToCheck.lastPeriod == subStakeInfo.lastPeriod &&\n\n subStakeInfoToCheck.periods == subStakeInfo.periods &&\n\n subStakeInfoToCheck.lockedValue == subStakeInfo.lockedValue);\n\n }\n\n\n\n // it's not perfect because checks not only slot value but also decoding\n\n // at least without additional functions\n\n require(delegateGet(_testTarget, this.totalStakedForAt.selector, staker, bytes32(block.number)) ==\n\n totalStakedForAt(stakerAddress, block.number));\n\n require(delegateGet(_testTarget, this.totalStakedAt.selector, bytes32(block.number)) ==\n\n totalStakedAt(block.number));\n\n\n\n if (info.worker != address(0)) {\n\n require(address(delegateGet(_testTarget, this.stakerFromWorker.selector, bytes32(uint256(info.worker)))) ==\n\n stakerFromWorker[info.worker]);\n\n }\n\n }\n\n\n\n /// @dev the `onlyWhileUpgrading` modifier works through a call to the parent `finishUpgrade`\n\n function finishUpgrade(address _target) public override virtual {\n\n super.finishUpgrade(_target);\n\n // Create fake period\n\n lockedPerPeriod[RESERVED_PERIOD] = 111;\n\n\n\n // Create fake worker\n\n stakerFromWorker[address(0)] = address(this);\n\n 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true, \"error\": null, \"results\": {\"detectors\": [{\"check\": \"uninitialized-state\", \"impact\": \"High\", \"confidence\": \"High\"}, {\"check\": \"reentrancy-no-eth\", \"impact\": \"Medium\", \"confidence\": \"Medium\"}, {\"check\": \"incorrect-equality\", \"impact\": \"Medium\", \"confidence\": \"High\"}]}}"},"success":{"kind":"bool","value":true,"string":"true"},"error":{"kind":"null"},"results":{"kind":"string","value":"{'detectors': [{'check': 'uninitialized-state', 'impact': 'High', 'confidence': 'High'}, {'check': 'reentrancy-no-eth', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'incorrect-equality', 'impact': 'Medium', 'confidence': 'High'}]}"},"input_ids":{"kind":"list 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Unnamed: 0 int64 0 60k | address stringlengths 42 42 | source_code stringlengths 52 864k | bytecode stringlengths 2 49.2k | slither stringlengths 47 956 | success bool 1
class | error float64 | results stringlengths 2 911 | input_ids listlengths 128 128 | attention_mask listlengths 128 128 |
|---|---|---|---|---|---|---|---|---|---|
600 | 0xd18e2A433664F9459CCCbd4bEe0057A7BC57E707 | pragma solidity 0.6.12;
pragma experimental ABIEncoderV2;
contract Context {
// Empty internal constructor, to prevent people from mistakenly deploying
// an instance of this contract, which should be used via inheritance.
constructor () internal { }
function _msgSender() internal view virtual re... | 0x608060405234801561001057600080fd5b50600436106100575760003560e01c80630c340a241461005c578063679b721c14610080578063b9a3c84c14610088578063d0fc157214610090578063d55ec69714610098575b600080fd5b6100646100a2565b604080516001600160a01b039092168252519081900360200190f35b6100646100b1565b6100646100c0565b6100646100cf565b6100a06100de... | {"success": true, "error": null, "results": {"detectors": [{"check": "divide-before-multiply", "impact": "Medium", "confidence": "Medium"}, {"check": "reentrancy-no-eth", "impact": "Medium", "confidence": "Medium"}, {"check": "arbitrary-send", "impact": "High", "confidence": "Medium"}, {"check": "incorrect-equality", "... | true | null | {'detectors': [{'check': 'divide-before-multiply', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'reentrancy-no-eth', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'arbitrary-send', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'incorrect-equality', 'impact': 'Medium', 'confidence': 'High'}, {'... | [
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601 | 0xd194573d31be849ee771b3e561e9138f054e13c6 | pragma solidity 0.6.6;
pragma experimental ABIEncoderV2;
contract DSAuthEvents {
event LogSetAuthority(address indexed authority);
event LogSetOwner(address indexed owner);
}
contract DSAuth is DSAuthEvents {
DSAuthority public authority;
address public owner;
constructor() public {
... | 0x608060405234801561001057600080fd5b50600436106100935760003560e01c806382dfc5f71161006657806382dfc5f7146100e65780638823151b146100ee578063d36b907d146100f6578063e074bb47146100fe578063ef9486df1461011157610093565b8063329b8f591461009857806339df1878146100ad5780633d391f70146100cb5780634d9fb18f146100de575b600080fd5b6100ab6100a6... | {"success": true, "error": null, "results": {"detectors": [{"check": "name-reused", "impact": "High", "confidence": "High"}, {"check": "erc20-interface", "impact": "Medium", "confidence": "High"}, {"check": "arbitrary-send", "impact": "High", "confidence": "Medium"}, {"check": "unchecked-lowlevel", "impact": "Medium", ... | true | null | {'detectors': [{'check': 'name-reused', 'impact': 'High', 'confidence': 'High'}, {'check': 'erc20-interface', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'arbitrary-send', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'unchecked-lowlevel', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'incorrec... | [
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602 | 0xd1FDaaFd4a561F4bEcc0E2CCAb27830370287245 | pragma solidity 0.5.17;
pragma experimental ABIEncoderV2;
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function sy... | 0x608060405234801561001057600080fd5b50600436106102535760003560e01c806363f6d4c811610146578063af14052c116100c3578063cd87782611610087578063cd87782614610620578063cdabdaac1461063e578063cf1b927e1461065a578063d94ad83714610678578063dcf93f3214610696578063f4325d67146106b457610253565b8063af14052c146105a0578063b60e1e3e146105aa5780... | {"success": true, "error": null, "results": {"detectors": [{"check": "divide-before-multiply", "impact": "Medium", "confidence": "Medium"}, {"check": "unchecked-transfer", "impact": "High", "confidence": "Medium"}, {"check": "uninitialized-local", "impact": "Medium", "confidence": "Medium"}, {"check": "weak-prng", "imp... | true | null | {'detectors': [{'check': 'divide-before-multiply', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'unchecked-transfer', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'uninitialized-local', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'weak-prng', 'impact': 'High', 'confidence': 'Medium'}, {'che... | [
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603 | 0xd291328a6c202c5b18dcb24f279f69de1e065f70 | pragma solidity 0.6.11;
pragma experimental ABIEncoderV2;
struct FullAbsoluteTokenAmount {
AbsoluteTokenAmountMeta base;
AbsoluteTokenAmountMeta[] underlying;
}
struct AbsoluteTokenAmountMeta {
AbsoluteTokenAmount absoluteTokenAmount;
ERC20Metadata erc20metadata;
}
struct ERC20Metadata {
s... | 0x6080604052600436106100385760003560e01c8063610961e514610044578063695f72191461007a5780636f16a1101461009a5761003f565b3661003f57005b600080fd5b34801561005057600080fd5b5061006461005f366004610e62565b6100bc565b6040516100719190611191565b60405180910390f35b61008d610088366004610d53565b610111565b60405161007191906111eb565b34801561... | {"success": true, "error": null, "results": {"detectors": [{"check": "controlled-delegatecall", "impact": "High", "confidence": "Medium"}, {"check": "arbitrary-send", "impact": "High", "confidence": "Medium"}, {"check": "incorrect-equality", "impact": "Medium", "confidence": "High"}, {"check": "delegatecall-loop", "imp... | true | null | {'detectors': [{'check': 'controlled-delegatecall', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'arbitrary-send', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'incorrect-equality', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'delegatecall-loop', 'impact': 'High', 'confidence': 'Medium'}, {'che... | [
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604 | 0xd3382598172bbDbC393F11f2B7A09B0Dd273378D | pragma solidity 0.6.6;
pragma experimental ABIEncoderV2;
contract DSAuthEvents {
event LogSetAuthority(address indexed authority);
event LogSetOwner(address indexed owner);
}
contract DSAuth is DSAuthEvents {
DSAuthority public authority;
address public owner;
constructor() public {
... | 0x6080604052600436106101a05760003560e01c806353485907116100ec578063a46a66c91161008a578063ce245c8011610064578063ce245c80146103f1578063d0cc728914610406578063d3661fa51461029a578063f1d021621461041b576101a7565b8063a46a66c91461035b578063bfe142a3146103c7578063c91d59fe146103dc576101a7565b80637b925ab1116100c65780637b925ab1146103... | {"success": true, "error": null, "results": {"detectors": [{"check": "tx-origin", "impact": "Medium", "confidence": "Medium"}, {"check": "name-reused", "impact": "High", "confidence": "High"}, {"check": "erc20-interface", "impact": "Medium", "confidence": "High"}, {"check": "arbitrary-send", "impact": "High", "confiden... | true | null | {'detectors': [{'check': 'tx-origin', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'name-reused', 'impact': 'High', 'confidence': 'High'}, {'check': 'erc20-interface', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'arbitrary-send', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'unchecked-lowleve... | [
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605 | 0xd3Fe77Ca1661D01385C5e6C3D51f7Ee47CE08fdE | pragma solidity 0.4.25;
contract ERC20Interface {
uint256 public totalSupply;
function balanceOf(address _owner) public view returns (uint256 balance);
function transfer(address _to, uint256 _value) public returns (bool success);
function transferFrom(address _from, address _to, uint256 _value) pub... | 0x6080604052600436106100af576000357c0100000000000000000000000000000000000000000000000000000000900463ffffffff16806306fdde03146100b4578063095ea7b31461014457806318160ddd146101a957806323b872dd146101d457806327e235e314610259578063313ce567146102b05780635c658165146102e157806370a082311461035857806395d89b41146103af578063a9059cbb... | {"success": true, "error": null, "results": {"detectors": [{"check": "locked-ether", "impact": "Medium", "confidence": "High"}]}} | true | null | {'detectors': [{'check': 'locked-ether', 'impact': 'Medium', 'confidence': 'High'}]} | [
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606 | 0xd4CF925B9d0f4d1cCf82aB97C25130657474Ee19 | pragma solidity 0.5.15;
contract CairoBootloaderProgramSize {
uint256 internal constant PROGRAM_SIZE = 220;
}
contract CairoBootloaderProgram is CairoBootloaderProgramSize {
function getCompiledProgram()
external pure
returns (uint256[PROGRAM_SIZE] memory)
{
return [
... | 0x608060405234801561001057600080fd5b506004361061004c5760003560e01c80636a938567146100515780639b3b76cc14610082578063d6354e15146101ea578063eeb72866146101f2575b600080fd5b61006e6004803603602081101561006757600080fd5b503561026f565b604080519115158252519081900360200190f35b6101e8600480360360a081101561009857600080fd5b810190602081... | {"success": true, "error": null, "results": {}} | true | null | {} | [
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607 | 0xd4e7a6e7f9aa5909036338a3c4cd57319d613190 | pragma solidity 0.7.3;
abstract contract Context {
function _msgSender() internal virtual view returns (address payable) {
return msg.sender;
}
function _msgData() internal virtual view returns (bytes memory) {
this; // silence state mutability warning without generating byteco... | 0x608060405234801561001057600080fd5b50600436106100cf5760003560e01c806370a082311161008c57806395d89b411161006657806395d89b41146103bc578063a9059cbb1461043f578063dd62ed3e146104a3578063de0e9a3e1461051b576100cf565b806370a08231146102b25780637ed9db591461030a5780638ccc5f8014610378576100cf565b806306fdde03146100d4578063095ea7b314... | {"success": true, "error": null, "results": {"detectors": [{"check": "reentrancy-no-eth", "impact": "Medium", "confidence": "Medium"}, {"check": "uninitialized-local", "impact": "Medium", "confidence": "Medium"}]}} | true | null | {'detectors': [{'check': 'reentrancy-no-eth', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'uninitialized-local', 'impact': 'Medium', 'confidence': 'Medium'}]} | [
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608 | 0xD5fb59D9402c382746AbF223511FbA1AEFd3a268 | pragma solidity 0.6.11;
interface IMainUniLotteryPool
{
function isLotteryOngoing( address lotAddr )
external view returns( bool );
function scheduledCallback( uint256 requestID )
external;
function onLotteryCallbackPriceExceedingGivenFunds(
address lottery, uin... | 0x6080604052600436106100b55760003560e01c80639277700911610069578063bf1fe4201161004e578063bf1fe420146103e1578063de1c41af1461040b578063f192a11b14610435576100f6565b80639277700914610384578063aef01ffe146103cc576100f6565b806338bbfa501161009a57806338bbfa50146101e15780635a62b773146103225780638129fc1c1461036f576100f6565b80630e19... | {"success": true, "error": null, "results": {"detectors": [{"check": "reentrancy-eth", "impact": "High", "confidence": "Medium"}, {"check": "unused-return", "impact": "Medium", "confidence": "Medium"}, {"check": "reentrancy-no-eth", "impact": "Medium", "confidence": "Medium"}, {"check": "uninitialized-local", "impact":... | true | null | {'detectors': [{'check': 'reentrancy-eth', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'unused-return', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'reentrancy-no-eth', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'uninitialized-local', 'impact': 'Medium', 'confidence': 'Medium'}]} | [
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609 | 0xd65Edf05b7B5818C17157ee3809F40bBe36bD4db | pragma solidity 0.6.6;
pragma experimental ABIEncoderV2;
contract DSAuthEvents {
event LogSetAuthority(address indexed authority);
event LogSetOwner(address indexed owner);
}
contract DSAuth is DSAuthEvents {
DSAuthority public authority;
address public owner;
constructor() public {
... | 0x608060405234801561001057600080fd5b50600436106101585760003560e01c8063526d6461116100c3578063870e44d91161007c578063870e44d9146102d95780638fb5a482146102e1578063bfe142a3146102f4578063cae81e6e146102fc578063d802178e1461030f578063d98bb5b11461033157610158565b8063526d64611461027b5780635c1e4172146102835780635f3bc8e7146102965780... | {"success": true, "error": null, "results": {"detectors": [{"check": "tx-origin", "impact": "Medium", "confidence": "Medium"}, {"check": "name-reused", "impact": "High", "confidence": "High"}, {"check": "erc20-interface", "impact": "Medium", "confidence": "High"}, {"check": "arbitrary-send", "impact": "High", "confiden... | true | null | {'detectors': [{'check': 'tx-origin', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'name-reused', 'impact': 'High', 'confidence': 'High'}, {'check': 'erc20-interface', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'arbitrary-send', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'unchecked-lowleve... | [
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610 | 0xD67C12734dC12240a6324Db63ccd426964B71Fe7 | pragma solidity 0.7.4;
interface IArbitrable {
/**
* @dev To be raised when a ruling is given.
* @param _arbitrator The arbitrator giving the ruling.
* @param _disputeID ID of the dispute in the Arbitrator contract.
* @param _ruling The ruling which was given.
*/
event Ruling(IA... | 0x60806040526004361061023b5760003560e01c806382b350171161012e578063b5f3918b116100ab578063cc7b9d061161006f578063cc7b9d0614610a77578063d2dbe1d814610aa2578063d661dd3114610acc578063e4c0aaf414610ae1578063fc6f8f1614610b145761023b565b8063b5f3918b14610984578063b8573185146109ae578063c17a340e146109cb578063c36cd196146109e0578063c4... | {"success": true, "error": null, "results": {"detectors": [{"check": "reentrancy-eth", "impact": "High", "confidence": "Medium"}, {"check": "unchecked-send", "impact": "Medium", "confidence": "Medium"}, {"check": "arbitrary-send", "impact": "High", "confidence": "Medium"}]}} | true | null | {'detectors': [{'check': 'reentrancy-eth', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'unchecked-send', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'arbitrary-send', 'impact': 'High', 'confidence': 'Medium'}]} | [
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611 | 0xd6d57805f4480e44ac3ca5e1bfd3cdf903944cb4 | pragma solidity 0.5.17;
interface PotLike {
function chi() external view returns (uint);
function pie(address) external view returns (uint);
function drip() external returns (uint);
function join(uint) external;
function exit(uint) external;
}
interface GemLike {
function approve(addres... | 0x60806040526004361061007b5760003560e01c8063dcfbc0c71161004e578063dcfbc0c71461019e578063e992a041146101b3578063e9c714f2146101e6578063f851a440146101fb5761007b565b806326782247146100fe578063b71d1a0c1461012f578063bb82aa5e14610174578063c1e8033414610189575b6002546040516000916001600160a01b03169082903690808383808284376040519201... | {"success": true, "error": null, "results": {"detectors": [{"check": "reentrancy-no-eth", "impact": "Medium", "confidence": "Medium"}, {"check": "boolean-cst", "impact": "Medium", "confidence": "Medium"}, {"check": "controlled-delegatecall", "impact": "High", "confidence": "Medium"}, {"check": "erc20-interface", "impac... | true | null | {'detectors': [{'check': 'reentrancy-no-eth', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'boolean-cst', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'controlled-delegatecall', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'erc20-interface', 'impact': 'Medium', 'confidence': 'High'}, {'check... | [
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612 | 0xd71bbf61079d3ea7ea7890356850d4579be304af | pragma solidity 0.6.2;
abstract contract Context {
function _msgSender() internal view virtual returns (address payable) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes memory) {
this; // silence state mutability warning without generating bytecode - s... | 0x608060405234801561001057600080fd5b50600436106100a95760003560e01c80633950935111610071578063395093511461025f57806370a08231146102c557806395d89b411461031d578063a457c2d7146103a0578063a9059cbb14610406578063dd62ed3e1461046c576100a9565b806306fdde03146100ae578063095ea7b31461013157806318160ddd1461019757806323b872dd146101b55780... | {"success": true, "error": null, "results": {}} | true | null | {} | [
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613 | 0xd786eb706dfd303d0dc98920b71fabfac6c89eed | pragma solidity 0.6.6;
interface IUniswapV2Router01 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidity(
address tokenA,
address tokenB,
uint amountADesired,
uint amountBDesired,
uint ... | 0x60806040526004361061008a5760003560e01c806378c8cda71161005957806378c8cda71461020c5780638da5cb5b1461025d5780639b19251a146102b4578063f2fde38b1461031d578063f80f5dd51461036e57610091565b806326536947146100965780632ff6a392146100ee578063715018a61461019e578063735de9f7146101b557610091565b3661009157005b600080fd5b6100ec6004803603... | {"success": true, "error": null, "results": {"detectors": [{"check": "unused-return", "impact": "Medium", "confidence": "Medium"}]}} | true | null | {'detectors': [{'check': 'unused-return', 'impact': 'Medium', 'confidence': 'Medium'}]} | [
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614 | 0xd7d57b4b1d7a6d04683653376f721a8bcb45adec | pragma solidity 0.5.17;
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
... | 0x60806040526004361061007b5760003560e01c8063c72c4d101161004e578063c72c4d101461016b578063e9f12bcb146101c2578063ee872558146103c3578063f2fde38b1461047d5761007b565b806351cff8d91461007d578063715018a6146100ce5780638da5cb5b146100e55780638f32d59b1461013c575b005b34801561008957600080fd5b506100cc600480360360208110156100a057600080... | {"success": true, "error": null, "results": {"detectors": [{"check": "unused-return", "impact": "Medium", "confidence": "Medium"}, {"check": "unchecked-transfer", "impact": "High", "confidence": "Medium"}, {"check": "unchecked-lowlevel", "impact": "Medium", "confidence": "Medium"}, {"check": "arbitrary-send", "impact":... | true | null | {'detectors': [{'check': 'unused-return', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'unchecked-transfer', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'unchecked-lowlevel', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'arbitrary-send', 'impact': 'High', 'confidence': 'Medium'}]} | [
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615 | 0xD8329e9D1b0ff632903fc80E0f8A0cE0884f4ce7 | pragma solidity 0.6.0;
pragma experimental ABIEncoderV2;
contract HDS {
using SafeMath for uint256;
/// @notice EIP-20 token name for this token
string public constant name = "Hades governance token";
/// @notice EIP-20 token symbol for this token
string public constant symbol = "HDS";
/// @notice EI... | 0x608060405234801561001057600080fd5b50600436106101735760003560e01c80637ecebe00116100de578063c3cda52011610097578063dd62ed3e11610071578063dd62ed3e14610486578063e7a324dc146104b6578063f1127ed8146104d4578063f851a4401461050557610173565b8063c3cda52014610430578063c4d66de81461044c578063d5abeb011461046857610173565b80637ecebe0014... | {"success": true, "error": null, "results": {"detectors": [{"check": "incorrect-equality", "impact": "Medium", "confidence": "High"}]}} | true | null | {'detectors': [{'check': 'incorrect-equality', 'impact': 'Medium', 'confidence': 'High'}]} | [
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616 | 0xD8F8019c025C2Ba6745543D9a3C338DE1b98C103 | pragma solidity 0.7.4;
interface IArbitrable {
/**
* @dev To be raised when a ruling is given.
* @param _arbitrator The arbitrator giving the ruling.
* @param _disputeID ID of the dispute in the Arbitrator contract.
* @param _ruling The ruling which was given.
*/
event Ruling(IA... | 0x60806040526004361061023b5760003560e01c806382b350171161012e578063b5f3918b116100ab578063cc7b9d061161006f578063cc7b9d0614610a77578063d2dbe1d814610aa2578063d661dd3114610acc578063e4c0aaf414610ae1578063fc6f8f1614610b145761023b565b8063b5f3918b14610984578063b8573185146109ae578063c17a340e146109cb578063c36cd196146109e0578063c4... | {"success": true, "error": null, "results": {"detectors": [{"check": "reentrancy-eth", "impact": "High", "confidence": "Medium"}, {"check": "unchecked-send", "impact": "Medium", "confidence": "Medium"}, {"check": "arbitrary-send", "impact": "High", "confidence": "Medium"}]}} | true | null | {'detectors': [{'check': 'reentrancy-eth', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'unchecked-send', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'arbitrary-send', 'impact': 'High', 'confidence': 'Medium'}]} | [
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617 | 0xd8f9d2b6cf81e21a3c6212a0e97c5ed1aba0da99 | pragma solidity 0.7.0;
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among ot... | 0x608060405234801561001057600080fd5b50600436106101ef5760003560e01c8063547520fe1161010f57806395d89b41116100a2578063ca15c87311610071578063ca15c8731461092b578063d53913931461096d578063d547741f1461098b578063dd62ed3e146109d9576101ef565b806395d89b41146107c2578063a217fddf14610845578063a457c2d714610863578063a9059cbb146108c75761... | {"success": true, "error": null, "results": {"detectors": [{"check": "weak-prng", "impact": "High", "confidence": "Medium"}, {"check": "incorrect-equality", "impact": "Medium", "confidence": "High"}]}} | true | null | {'detectors': [{'check': 'weak-prng', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'incorrect-equality', 'impact': 'Medium', 'confidence': 'High'}]} | [
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618 | 0xd8fa56032f692f90e2b77a72f394f6a464e3c976 | pragma solidity 0.6.12;
contract Initializable {
/**
* @dev Indicates that the contract has been initialized.
*/
bool private initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool private initializing;
/**
* @dev Modifi... | 0x608060405234801561001057600080fd5b506004361061035d5760003560e01c806381c0c263116101d3578063c0c53b8b11610104578063e1522536116100a2578063efbe1c1c1161007c578063efbe1c1c146108ea578063f77c4791146108f2578063fd96044b146108fa578063fec8ee0c146109205761035d565b8063e152253614610895578063e6f1daf2146108c3578063ef78d4fd146108cb5761... | {"success": true, "error": null, "results": {"detectors": [{"check": "unused-return", "impact": "Medium", "confidence": "Medium"}, {"check": "divide-before-multiply", "impact": "Medium", "confidence": "Medium"}, {"check": "incorrect-equality", "impact": "Medium", "confidence": "High"}, {"check": "reentrancy-no-eth", "i... | true | null | {'detectors': [{'check': 'unused-return', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'divide-before-multiply', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'incorrect-equality', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'reentrancy-no-eth', 'impact': 'Medium', 'confidence': 'Medium'}]} | [
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619 | 0xd957fad3f767cbe93824dc5ebf8694c51a5de680 | pragma solidity 0.6.5;
pragma experimental ABIEncoderV2;
struct UserInfo {
uint256 amount;
uint256 rewardDebt;
}
struct PoolInfo {
address lpToken;
uint256 allocPoint;
uint256 lastRewardBlock;
uint256 accSushiPerShare;
}
interface ProtocolAdapter {
/**
* @dev MUST return ... | 0x608060405234801561001057600080fd5b50600436106100415760003560e01c806330fa738c14610046578063d4fac45d14610064578063f72c079114610084575b600080fd5b61004e61008c565b60405161005b9190610573565b60405180910390f35b61007761007236600461049e565b6100c5565b60405161005b91906105e4565b61004e61040d565b604051806040016040528060058152602001... | {"success": true, "error": null, "results": {}} | true | null | {} | [
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620 | 0xda1aaFE4D13fF3C789EfB0a30cE6994cb15f4F94 | pragma solidity 0.6.8;
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among ot... | 0x6080604052600436106102255760003560e01c80639f3d4e6911610123578063ce5494bb116100ab578063f055c9a01161006f578063f055c9a014610a5f578063f2fde38b14610a9a578063fb15298d14610acd578063fb34499d14610b06578063fc9d015414610b3357610225565b8063ce5494bb1461088d578063cf43cd6d146108c0578063cf9717481461096e578063e0dba60f14610a0f578063e6... | {"success": true, "error": null, "results": {"detectors": [{"check": "weak-prng", "impact": "High", "confidence": "Medium"}, {"check": "unused-return", "impact": "Medium", "confidence": "Medium"}]}} | true | null | {'detectors': [{'check': 'weak-prng', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'unused-return', 'impact': 'Medium', 'confidence': 'Medium'}]} | [
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621 | 0xdaf8a0e12fc3b109a17ed5cbb943a8f3f86081f7 | pragma solidity 0.6.12;
abstract contract ERC20Interface {
function totalSupply() public virtual view returns (uint);
function balanceOf(address tokenOwner) public virtual view returns (uint256 balance);
function allowance(address tokenOwner, address spender) public virtual view returns (uint256 rema... | 0x608060405234801561001057600080fd5b50600436106100b45760003560e01c806370a082311161007157806370a08231146101d65780638da5cb5b146101fc57806395d89b4114610220578063a9059cbb14610228578063dd62ed3e14610254578063f2fde38b14610282576100b4565b806306fdde03146100b9578063095ea7b3146101365780630eb347401461017657806318160ddd146101905780... | {"success": true, "error": null, "results": {"detectors": [{"check": "divide-before-multiply", "impact": "Medium", "confidence": "Medium"}]}} | true | null | {'detectors': [{'check': 'divide-before-multiply', 'impact': 'Medium', 'confidence': 'Medium'}]} | [
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622 | 0xDB1c818B911E35F030BC13b980E8e3b8D6A2DFbe | pragma solidity 0.5.17;
contract IFactRegistry {
/*
Returns true if the given fact was previously registered in the contract.
*/
function isValid(bytes32 fact)
external view
returns(bool);
}
contract PublicInputOffsets {
// The following constants are offsets of data expe... | 0x6080604052600436106100b15760003560e01c8063770c15d411610069578063aeac95b91161004e578063aeac95b914610245578063c41dce51146102b0578063cf695688146102da576100b1565b8063770c15d4146101d357806397a7e93b1461020f576100b1565b8063255375b91161009a578063255375b9146101215780636e55ce1d146101635780637065cb4814610193576100b1565b80631738... | {"success": true, "error": null, "results": {}} | true | null | {} | [
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623 | 0xDbDBFC8aBCd6dfC467b75093b371AEDf93ed08F7 | pragma solidity 0.6.10;
pragma experimental ABIEncoderV2;
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(a... | 0x60806040526004361061003f5760003560e01c8063325daab31461004457806351cff8d914610074578063b4a99a4e1461009d578063c90567f6146100c8575b600080fd5b61005e60048036038101906100599190610cb3565b6100f8565b60405161006b9190610fc4565b60405180910390f35b34801561008057600080fd5b5061009b60048036038101906100969190610e58565b6103e9565b005b34... | {"success": true, "error": null, "results": {"detectors": [{"check": "uninitialized-local", "impact": "Medium", "confidence": "Medium"}, {"check": "arbitrary-send", "impact": "High", "confidence": "Medium"}]}} | true | null | {'detectors': [{'check': 'uninitialized-local', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'arbitrary-send', 'impact': 'High', 'confidence': 'Medium'}]} | [
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624 | 0xdc7d33398342d58b935446f9f6e052b48793a4ac | pragma solidity 0.5.16;
interface IParams {
function isLiquidation(uint256 price) external view returns (bool);
}
interface IEsm {
function shutdown() external;
function isClosed() external view returns (bool);
}
contract Owned {
address public owner;
address public nominatedOwner;
... | 0x608060405234801561001057600080fd5b50600436106100f55760003560e01c806359e02dd711610097578063af41b24811610066578063af41b2481461033a578063c97ec6bd14610384578063cff0ab96146103c8578063f95f450014610412576100f5565b806359e02dd71461027057806367f3c2a51461028e57806379ba5097146102e65780638da5cb5b146102f0576100f5565b806332145f9011... | {"success": true, "error": null, "results": {}} | true | null | {} | [
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625 | 0xDC7E1FCED65eFdf495D33de60f257a9b31256FF8 | pragma solidity 0.7.4;
enum MathError { NO_ERROR, DIVISION_BY_ZERO, INTEGER_OVERFLOW, INTEGER_UNDERFLOW, MODULO_BY_ZERO }
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function ret... | 0x608060405234801561001057600080fd5b506004361061012c5760003560e01c8063a5d5db0c116100ad578063d8e51dfb11610071578063d8e51dfb146103eb578063e2ad6fe014610427578063e6abb5ae14610455578063ede4c0cc1461047b578063f851a4401461049f5761012c565b8063a5d5db0c146102fb578063b4f2a9cc14610327578063b9d2cc3014610355578063bbd7edc51461038b5780... | {"success": true, "error": null, "results": {"detectors": [{"check": "unused-return", "impact": "Medium", "confidence": "Medium"}, {"check": "uninitialized-local", "impact": "Medium", "confidence": "Medium"}]}} | true | null | {'detectors': [{'check': 'unused-return', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'uninitialized-local', 'impact': 'Medium', 'confidence': 'Medium'}]} | [
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626 | 0xdcba56c85ee0aaf8bd3d5a8fdd3bc9113ee1d55e | pragma solidity 0.6.0;
abstract contract Context {
function _msgSender() internal view virtual returns (address payable) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes memory) {
this; // silence state mutability warning without generating bytecode - s... | 0x608060405234801561001057600080fd5b50600436106100a95760003560e01c8063395093511161007157806339509351146101d957806370a082311461020557806395d89b411461022b578063a457c2d714610233578063a9059cbb1461025f578063dd62ed3e1461028b576100a9565b806306fdde03146100ae578063095ea7b31461012b57806318160ddd1461016b57806323b872dd146101855780... | {"success": true, "error": null, "results": {}} | true | null | {} | [
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627 | 0xDcf080fF95716644A8864b3A918C5C7Ba73dDa16 | pragma solidity 0.4.24;
contract ERC20Basic {
function totalSupply() public view returns (uint256);
function balanceOf(address _who) public view returns (uint256);
function transfer(address _to, uint256 _value) public returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
... | 0x6080604052600436106100fb5763ffffffff7c010000000000000000000000000000000000000000000000000000000060003504166305d2035b811461010057806306fdde0314610129578063095ea7b3146101b357806318160ddd146101d757806323b872dd146101fe578063313ce56714610228578063355274ea1461025357806340c10f1914610268578063661884631461028c57806370a0823114... | {"success": true, "error": null, "results": {}} | true | null | {} | [
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628 | 0xdd99ae403ed319443f73d37a466409578804426a | pragma solidity 0.6.12;
pragma experimental ABIEncoderV2;
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(a... | 0x608060405234801561001057600080fd5b50600436106101575760003560e01c806378253604116100c3578063b9e5d5511161007c578063b9e5d55114610281578063ba232ecb14610294578063c251b565146102a7578063ce41607a146102bc578063d0fab3ca146102c4578063ff4dfa51146102cc57610157565b8063782536041461023057806390a39a9e1461023857806399e133f91461024b5780... | {"success": true, "error": null, "results": {"detectors": [{"check": "incorrect-equality", "impact": "Medium", "confidence": "High"}, {"check": "unused-return", "impact": "Medium", "confidence": "Medium"}]}} | true | null | {'detectors': [{'check': 'incorrect-equality', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'unused-return', 'impact': 'Medium', 'confidence': 'Medium'}]} | [
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629 | 0xdf66e55288507987ecec74d64ae26f0a9833ac6e | pragma solidity 0.6.12;
pragma experimental ABIEncoderV2;
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(a... | 0x608060405234801561001057600080fd5b506004361061018d5760003560e01c80636de5f3a9116100de578063c0a41ea811610097578063eb87e89b11610071578063eb87e89b14610328578063f1e5ff3e1461033b578063f36d52da1461034e578063f4265715146103615761018d565b8063c0a41ea814610310578063c9ff857214610318578063d1058e59146103205761018d565b80636de5f3a914... | {"success": true, "error": null, "results": {"detectors": [{"check": "weak-prng", "impact": "High", "confidence": "Medium"}, {"check": "incorrect-equality", "impact": "Medium", "confidence": "High"}, {"check": "unchecked-transfer", "impact": "High", "confidence": "Medium"}]}} | true | null | {'detectors': [{'check': 'weak-prng', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'incorrect-equality', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'unchecked-transfer', 'impact': 'High', 'confidence': 'Medium'}]} | [
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630 | 0xdf759793b9e7892f600892f81684833d6a740c6b | pragma solidity 0.4.21;
contract EIP20Interface {
/* This is a slight change to the ERC20 base standard.
function totalSupply() constant returns (uint256 supply);
is replaced with:
uint256 public totalSupply;
This automatically creates a getter function for the totalSupply.
This is ... | 0x6060604052600436106100af576000357c0100000000000000000000000000000000000000000000000000000000900463ffffffff16806306fdde03146100b4578063095ea7b31461014257806318160ddd1461019c57806323b872dd146101c557806327e235e31461023e578063313ce5671461028b5780635c658165146102ba57806370a082311461032657806395d89b4114610373578063a9059cbb... | {"success": true, "error": null, "results": {}} | true | null | {} | [
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1... |
631 | 0xe054bc481cb5fe5ec75048fbc95fe45267eb92a7 | pragma solidity 0.6.12;
contract Initializable {
/**
* @dev Indicates that the contract has been initialized.
*/
bool private initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool private initializing;
/**
* @dev Modifi... | 0x608060405234801561001057600080fd5b50600436106103db5760003560e01c806376d8b1171161020a578063c0c53b8b11610125578063e1522536116100b8578063f301af4211610087578063f301af4214610ac0578063f77c479114610add578063f8453e7c14610ae5578063fd96044b14610bb0578063fec8ee0c14610bd6576103db565b8063e152253614610a63578063e6f1daf214610a915780... | {"success": true, "error": null, "results": {"detectors": [{"check": "unused-return", "impact": "Medium", "confidence": "Medium"}, {"check": "divide-before-multiply", "impact": "Medium", "confidence": "Medium"}, {"check": "incorrect-equality", "impact": "Medium", "confidence": "High"}, {"check": "reentrancy-no-eth", "i... | true | null | {'detectors': [{'check': 'unused-return', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'divide-before-multiply', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'incorrect-equality', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'reentrancy-no-eth', 'impact': 'Medium', 'confidence': 'Medium'}]} | [
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632 | 0xe08d51e7f2d0291c57a92b2d33a5bba60bb774e3 | pragma solidity 0.6.6;
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among ot... | 0x608060405234801561001057600080fd5b50600436106100f55760003560e01c806340c10f191161009757806395d89b411161006657806395d89b41146104ac578063a457c2d71461052f578063a9059cbb14610595578063dd62ed3e146105fb576100f5565b806340c10f191461038a57806342966c68146103d857806370a082311461040657806379cc67901461045e576100f5565b806318160ddd11... | {"success": true, "error": null, "results": {}} | true | null | {} | [
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633 | 0xe08ff7A2BADb634F0b581E675E6B3e583De086FC | pragma solidity 0.6.6;
pragma experimental ABIEncoderV2;
contract DSAuthEvents {
event LogSetAuthority(address indexed authority);
event LogSetOwner(address indexed owner);
}
contract DSAuth is DSAuthEvents {
DSAuthority public authority;
address public owner;
constructor() public {
... | 0x | {"success": true, "error": null, "results": {"detectors": [{"check": "name-reused", "impact": "High", "confidence": "High"}, {"check": "erc20-interface", "impact": "Medium", "confidence": "High"}, {"check": "arbitrary-send", "impact": "High", "confidence": "Medium"}, {"check": "unchecked-lowlevel", "impact": "Medium", ... | true | null | {'detectors': [{'check': 'name-reused', 'impact': 'High', 'confidence': 'High'}, {'check': 'erc20-interface', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'arbitrary-send', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'unchecked-lowlevel', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'incorrec... | [
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634 | 0xe091122f5de87b1537eaff42e7032674cdba6e36 | pragma solidity 0.5.2;
contract Ownable {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev The Ownable constructor sets the original `owner` of the contract to the sender
* account.
*/
constructor ... | 0x608060405234801561001057600080fd5b506004361061009a576000357c01000000000000000000000000000000000000000000000000000000009004806383b30fdf1161007857806383b30fdf146101455780638da5cb5b146101bd5780638f32d59b14610207578063f2fde38b146102295761009a565b806335fe620f1461009f5780634681b5d1146100ed578063715018a61461013b575b600080fd... | {"success": true, "error": null, "results": {}} | true | null | {} | [
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635 | 0xe18d9062e61e2dcb45960115518f1b09ee4d5ccb | pragma solidity 0.7.1;
pragma experimental ABIEncoderV2;
contract CoreUniLotterySettings
{
// Percentage calculations.
// As Solidity doesn't have floats, we have to use integers for
// percentage arithmetics.
// We set 1 percent to be equal to 1,000,000 - thus, we
// simulate 6 decimal poin... | 0x608060405234801561001057600080fd5b50600436106100415760003560e01c80633c2b072514610046578063432fe9a714610064578063c4d66de814610077575b600080fd5b61004e61008c565b60405161005b9190610894565b60405180910390f35b61004e610072366004610530565b6100b0565b61008a6100853660046104f1565b6102e3565b005b7f0000000000000000000000004e1e629e33... | {"success": true, "error": null, "results": {"detectors": [{"check": "write-after-write", "impact": "Medium", "confidence": "High"}, {"check": "divide-before-multiply", "impact": "Medium", "confidence": "Medium"}, {"check": "reentrancy-no-eth", "impact": "Medium", "confidence": "Medium"}, {"check": "controlled-delegate... | true | null | {'detectors': [{'check': 'write-after-write', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'divide-before-multiply', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'reentrancy-no-eth', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'controlled-delegatecall', 'impact': 'High', 'confidence': 'Medi... | [
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636 | 0xe1a978506d667281a47e1ade7a0645bd4c409d65 | pragma solidity 0.7.4;
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
*... | 0x | {"success": true, "error": null, "results": {"detectors": [{"check": "tautology", "impact": "Medium", "confidence": "High"}]}} | true | null | {'detectors': [{'check': 'tautology', 'impact': 'Medium', 'confidence': 'High'}]} | [
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637 | 0xe1f28c0d8527eb28784ba15f6ff0a4371d7598e1 | pragma solidity 0.6.11;
pragma experimental ABIEncoderV2;
struct FullAbsoluteTokenAmount {
AbsoluteTokenAmountMeta base;
AbsoluteTokenAmountMeta[] underlying;
}
struct AbsoluteTokenAmountMeta {
AbsoluteTokenAmount absoluteTokenAmount;
ERC20Metadata erc20metadata;
}
struct ERC20Metadata {
s... | 0x6080604052600436106100345760003560e01c806328ffb83d14610039578063387b817414610062578063d4fac45d14610075575b600080fd5b61004c61004736600461105a565b6100a2565b604051610059919061131c565b60405180910390f35b61004c61007036600461105a565b6105d4565b34801561008157600080fd5b50610095610090366004611022565b610963565b604051610059919061... | {"success": true, "error": null, "results": {"detectors": [{"check": "divide-before-multiply", "impact": "Medium", "confidence": "Medium"}, {"check": "incorrect-equality", "impact": "Medium", "confidence": "High"}, {"check": "uninitialized-local", "impact": "Medium", "confidence": "Medium"}, {"check": "unused-return", ... | true | null | {'detectors': [{'check': 'divide-before-multiply', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'incorrect-equality', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'uninitialized-local', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'unused-return', 'impact': 'Medium', 'confidence': 'Medium'},... | [
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638 | 0xe3039217fd71ace6da76a37929c04db0a357910c | pragma solidity 0.6.12;
contract Initializable {
/**
* @dev Indicates that the contract has been initialized.
*/
bool private initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool private initializing;
/**
* @dev Modifi... | 0x608060405234801561001057600080fd5b50600436106103f15760003560e01c806381c0c26311610215578063c0c53b8b11610125578063e1522536116100b8578063f77c479111610087578063f77c479114610ac0578063f8c8765e14610ac8578063fd96044b14610b06578063fe06566c14610b2c578063fec8ee0c14610b52576103f1565b8063e152253614610a63578063e6f1daf214610a915780... | {"success": true, "error": null, "results": {"detectors": [{"check": "uninitialized-state", "impact": "High", "confidence": "High"}, {"check": "divide-before-multiply", "impact": "Medium", "confidence": "Medium"}, {"check": "reentrancy-no-eth", "impact": "Medium", "confidence": "Medium"}, {"check": "incorrect-equality"... | true | null | {'detectors': [{'check': 'uninitialized-state', 'impact': 'High', 'confidence': 'High'}, {'check': 'divide-before-multiply', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'reentrancy-no-eth', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'incorrect-equality', 'impact': 'Medium', 'confidence': 'High'},... | [
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639 | 0xe354a4be079d114a08828e2f6160df6ef7c489db | pragma solidity 0.6.5;
pragma experimental ABIEncoderV2;
interface ERC20 {
function approve(address, uint256) external returns (bool);
function transfer(address, uint256) external returns (bool);
function transferFrom(address, address, uint256) external returns (bool);
function name() external view... | 0x608060405234801561001057600080fd5b50600436106100415760003560e01c806330fa738c14610046578063d4fac45d14610064578063f72c079114610084575b600080fd5b61004e61008c565b60405161005b91906102e4565b60405180910390f35b610077610072366004610273565b6100c5565b60405161005b9190610355565b61004e610217565b604051806040016040528060058152602001... | {"success": true, "error": null, "results": {}} | true | null | {} | [
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640 | 0xe372ED8d188517eF4d4bC464C0c068d2002E2903 | pragma solidity 0.6.5;
interface LandToken {
function mintQuad(
address to,
uint256 size,
uint256 x,
uint256 y,
bytes calldata data
) external;
}
contract Admin {
address internal _admin;
/// @dev emitted when the contract administrator is changed.
... | 0x6080604052600436106101a15760003560e01c80637c53ec4c116100e1578063bc197c811161008a578063dc5074af11610064578063dc5074af14610c90578063e56f8a9e14610cc3578063e97eb0a214610ced578063f23a6e6114610d19576101a1565b8063bc197c8114610a3c578063c10a420814610bab578063caed350014610c7b576101a1565b8063984d6252116100bb578063984d6252146109... | {"success": true, "error": null, "results": {"detectors": [{"check": "arbitrary-send", "impact": "High", "confidence": "Medium"}]}} | true | null | {'detectors': [{'check': 'arbitrary-send', 'impact': 'High', 'confidence': 'Medium'}]} | [
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1,
1,
1,
1,
1... |
641 | 0xe4baf69b887843ab6a0e82e8baea49010ff619af | pragma solidity 0.6.2;
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
*... | 0x6080604052600436106101e35760003560e01c80638a3d470e11610102578063cac39a0511610095578063f2fde38b11610064578063f2fde38b14610902578063f32cd08d14610935578063fccc281314610a65578063fd688a5114610a7a576101e3565b8063cac39a05146107ed578063d41977cd14610899578063e54e26b9146108ae578063e86098f5146108d8576101e3565b8063a7252953116100... | {"success": true, "error": null, "results": {"detectors": [{"check": "reentrancy-eth", "impact": "High", "confidence": "Medium"}, {"check": "write-after-write", "impact": "Medium", "confidence": "High"}, {"check": "divide-before-multiply", "impact": "Medium", "confidence": "Medium"}, {"check": "reentrancy-no-eth", "imp... | true | null | {'detectors': [{'check': 'reentrancy-eth', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'write-after-write', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'divide-before-multiply', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'reentrancy-no-eth', 'impact': 'Medium', 'confidence': 'Medium'}]} | [
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642 | 0xe4DfC679F21e47609238C7F92d9416D5b726005f | pragma solidity 0.6.12;
pragma experimental ABIEncoderV2;
interface ILimitStorage {
struct Limit {
// the current limit
uint128 current;
// the pending limit if any
uint128 pending;
// when the pending limit becomes the current limit
uint64 changeAfter;
... | 0x608060405234801561001057600080fd5b506004361061004c5760003560e01c806319ab453c146100515780635a1db8c414610079578063c412967b146100a7578063fff3f2c9146100e0575b600080fd5b6100776004803603602081101561006757600080fd5b50356001600160a01b03166100e8565b005b6100776004803603604081101561008f57600080fd5b506001600160a01b03813581169160... | {"success": true, "error": null, "results": {}} | true | null | {} | [
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643 | 0xe517aa81408236cf3fd1170b708741614becb631 | pragma solidity 0.5.17;
pragma experimental ABIEncoderV2;
contract GovernorAlpha {
/// @notice The name of this contract
string public constant name = "GAMER Governor Alpha";
/// @notice The number of votes in support of a proposal required in order for a quorum to be reached and for a vote to succeed... | 0x6080604052600436106100dd5760003560e01c80636fc1f57e1161007f578063c1a287e211610059578063c1a287e21461066e578063e177246e14610683578063f2b06537146106ad578063f851a440146106d7576100dd565b80636fc1f57e1461061b5780637d645fab14610644578063b1b43ae514610659576100dd565b80633a66f901116100bb5780633a66f901146102f85780634dd18bf5146104... | {"success": true, "error": null, "results": {"detectors": [{"check": "divide-before-multiply", "impact": "Medium", "confidence": "Medium"}, {"check": "reentrancy-no-eth", "impact": "Medium", "confidence": "Medium"}, {"check": "arbitrary-send", "impact": "High", "confidence": "Medium"}, {"check": "unchecked-transfer", "... | true | null | {'detectors': [{'check': 'divide-before-multiply', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'reentrancy-no-eth', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'arbitrary-send', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'unchecked-transfer', 'impact': 'High', 'confidence': 'Medium'}, {'... | [
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644 | 0xe59b261d3ea188c952ff254ffaf270568ae3ef02 | pragma solidity 0.6.10;
pragma experimental ABIEncoderV2;
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a... | 0x608060405234801561001057600080fd5b506004361061010a5760003560e01c806376d07f6b116100a2578063af6967bb11610071578063af6967bb1461021d578063b39e12cf14610230578063c4d66de814610238578063ca15c8731461024b578063d547741f1461025e5761010a565b806376d07f6b146101c25780639010d07c146101d557806391d14854146101f5578063a217fddf146102155761... | {"success": true, "error": null, "results": {"detectors": [{"check": "write-after-write", "impact": "Medium", "confidence": "High"}, {"check": "divide-before-multiply", "impact": "Medium", "confidence": "Medium"}, {"check": "incorrect-equality", "impact": "Medium", "confidence": "High"}, {"check": "reentrancy-no-eth", ... | true | null | {'detectors': [{'check': 'write-after-write', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'divide-before-multiply', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'incorrect-equality', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'reentrancy-no-eth', 'impact': 'Medium', 'confidence': 'Medium'}]... | [
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645 | 0xe5c405c5578d84c5231d3a9a29ef4374423fa0c2 | pragma solidity 0.6.8;
pragma experimental ABIEncoderV2;
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a ... | 0x6080604052600436106100745760003560e01c806376a162a31161004e57806376a162a31461011e5780639a202d4714610133578063ab033ea914610148578063d9caed1214610168576100ae565b80633bffd49d146100b357806367b1f5df146100de578063704b6c02146100fe576100ae565b366100ae576001546001600160a01b031633146100ac5760405162461bcd60e51b81526004016100a390... | {"success": true, "error": null, "results": {"detectors": [{"check": "incorrect-equality", "impact": "Medium", "confidence": "High"}, {"check": "erc20-interface", "impact": "Medium", "confidence": "High"}]}} | true | null | {'detectors': [{'check': 'incorrect-equality', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'erc20-interface', 'impact': 'Medium', 'confidence': 'High'}]} | [
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646 | 0xe61b48d00b9ca02dd9a3764a4d9d263cd7b4d351 | pragma solidity 0.6.10;
pragma experimental ABIEncoderV2;
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a... | 0x608060405234801561001057600080fd5b506004361061012b5760003560e01c80639010d07c116100ad578063b39e12cf11610071578063b39e12cf14610256578063c09558db1461025e578063c4d66de814610271578063ca15c87314610284578063d547741f146102975761012b565b80639010d07c146101e857806391d14854146102085780639ac1c4ad14610228578063a15f74a21461023b5780... | {"success": true, "error": null, "results": {}} | true | null | {} | [
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647 | 0xe6410569602124506658ff992f258616ea2d4a3d | pragma solidity 0.5.17;
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among o... | 0x608060405234801561001057600080fd5b50600436106101735760003560e01c8063715018a6116100de578063a9059cbb11610097578063dd62ed3e11610071578063dd62ed3e14610501578063e7a324dc1461052f578063f1127ed814610537578063f2fde38b1461058957610173565b8063a9059cbb14610468578063b4b5ea5714610494578063c3cda520146104ba57610173565b8063715018a614... | {"success": true, "error": null, "results": {"detectors": [{"check": "incorrect-equality", "impact": "Medium", "confidence": "High"}]}} | true | null | {'detectors': [{'check': 'incorrect-equality', 'impact': 'Medium', 'confidence': 'High'}]} | [
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648 | 0xe66a9ae541b43a346e1a1fc82a2187c622093831 | pragma solidity 0.6.6;
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among ot... | 0x608060405234801561001057600080fd5b50600436106100625760003560e01c80632689a5a71461006757806338af3eed146100855780634f04a86b146100cf57806386d1a69f146100ed578063b91d4001146100f7578063fc0c546a14610115575b600080fd5b61006f61015f565b6040518082815260200191505060405180910390f35b61008d610169565b604051808273ffffffffffffffffffffff... | {"success": true, "error": null, "results": {"detectors": [{"check": "reentrancy-no-eth", "impact": "Medium", "confidence": "Medium"}]}} | true | null | {'detectors': [{'check': 'reentrancy-no-eth', 'impact': 'Medium', 'confidence': 'Medium'}]} | [
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649 | 0xe716bdcaef709f9685e843bf67842a3a1c449410 | pragma solidity 0.4.21;
contract EIP20Interface {
/* This is a slight change to the ERC20 base standard.
function totalSupply() constant returns (uint256 supply);
is replaced with:
uint256 public totalSupply;
This automatically creates a getter function for the totalSupply.
This is ... | 0x6060604052600436106100af576000357c0100000000000000000000000000000000000000000000000000000000900463ffffffff16806306fdde03146100b4578063095ea7b31461014257806318160ddd1461019c57806323b872dd146101c557806327e235e31461023e578063313ce5671461028b5780635c658165146102ba57806370a082311461032657806395d89b4114610373578063a9059cbb... | {"success": true, "error": null, "results": {}} | true | null | {} | [
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650 | 0xe73C21B1F7F290314ed768a7997e20859B9bE6e6 | pragma solidity 0.6.6;
pragma experimental ABIEncoderV2;
contract DSAuthEvents {
event LogSetAuthority(address indexed authority);
event LogSetOwner(address indexed owner);
}
contract DSAuth is DSAuthEvents {
DSAuthority public authority;
address public owner;
constructor() public {
... | 0x6080604052600436106100c25760003560e01c80637753f47b1161007f578063934785b711610059578063934785b7146102aa578063bfe142a3146102f5578063c1bce0b71461030a578063c91d59fe14610349576100c2565b80637753f47b1461020857806383c2120c146102395780638905d1781461026c576100c2565b806305a363de146100c757806313120a4e146100f357806347e7ef24146101... | {"success": true, "error": null, "results": {"detectors": [{"check": "name-reused", "impact": "High", "confidence": "High"}, {"check": "erc20-interface", "impact": "Medium", "confidence": "High"}, {"check": "arbitrary-send", "impact": "High", "confidence": "Medium"}, {"check": "unchecked-lowlevel", "impact": "Medium", ... | true | null | {'detectors': [{'check': 'name-reused', 'impact': 'High', 'confidence': 'High'}, {'check': 'erc20-interface', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'arbitrary-send', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'unchecked-lowlevel', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'incorrec... | [
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... | [
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1... |
651 | 0xe7479440babcdf926868999d70861c3860159e4a | pragma solidity 0.4.21;
contract EIP20Interface {
/* This is a slight change to the ERC20 base standard.
function totalSupply() constant returns (uint256 supply);
is replaced with:
uint256 public totalSupply;
This automatically creates a getter function for the totalSupply.
This is ... | 0x6060604052600436106100af576000357c0100000000000000000000000000000000000000000000000000000000900463ffffffff16806306fdde03146100b4578063095ea7b31461014257806318160ddd1461019c57806323b872dd146101c557806327e235e31461023e578063313ce5671461028b5780635c658165146102ba57806370a082311461032657806395d89b4114610373578063a9059cbb... | {"success": true, "error": null, "results": {}} | true | null | {} | [
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652 | 0xe7A4556e09be6D72Ee1B2D3a8f591eb0fB6ce6F2 | pragma solidity 0.6.6;
pragma experimental ABIEncoderV2;
contract DSAuthEvents {
event LogSetAuthority(address indexed authority);
event LogSetOwner(address indexed owner);
}
contract DSAuth is DSAuthEvents {
DSAuthority public authority;
address public owner;
constructor() public {
... | 0x608060405234801561001057600080fd5b50600436106101585760003560e01c8063526d6461116100c3578063870e44d91161007c578063870e44d9146102d95780638fb5a482146102e1578063bfe142a3146102f4578063cae81e6e146102fc578063d802178e1461030f578063d98bb5b11461033157610158565b8063526d64611461027b5780635c1e4172146102835780635f3bc8e7146102965780... | {"success": true, "error": null, "results": {"detectors": [{"check": "tx-origin", "impact": "Medium", "confidence": "Medium"}, {"check": "name-reused", "impact": "High", "confidence": "High"}, {"check": "erc20-interface", "impact": "Medium", "confidence": "High"}, {"check": "arbitrary-send", "impact": "High", "confiden... | true | null | {'detectors': [{'check': 'tx-origin', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'name-reused', 'impact': 'High', 'confidence': 'High'}, {'check': 'erc20-interface', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'arbitrary-send', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'unchecked-lowleve... | [
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653 | 0xe88f8ba2b64883210e93f26712507de25dc08770 | pragma solidity 0.6.5;
pragma experimental ABIEncoderV2;
struct ProtocolBalance {
ProtocolMetadata metadata;
AdapterBalance[] adapterBalances;
}
struct ProtocolMetadata {
string name;
string description;
string websiteURL;
string iconURL;
uint256 version;
}
struct AdapterBalance ... | 0x608060405234801561001057600080fd5b50600436106100365760003560e01c80632a50c1461461003b57806379b1833414610064575b600080fd5b61004e610049366004610b76565b610084565b60405161005b9190610ee4565b60405180910390f35b610077610072366004610b76565b610286565b60405161005b9190610e32565b61008c610a78565b60405180608001604052808373ffffffffff... | {"success": true, "error": null, "results": {"detectors": [{"check": "unused-return", "impact": "Medium", "confidence": "Medium"}, {"check": "uninitialized-local", "impact": "Medium", "confidence": "Medium"}]}} | true | null | {'detectors': [{'check': 'unused-return', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'uninitialized-local', 'impact': 'Medium', 'confidence': 'Medium'}]} | [
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654 | 0xe8955e12eed4a1686b232cfa5e30182317a00204 | pragma solidity 0.5.17;
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among o... | 0x608060405234801561001057600080fd5b50600436106102115760003560e01c806364482f7911610125578063938d44f3116100ad578063ce872d871161007c578063ce872d8714610566578063d49e77cd1461056e578063e2bbb15814610576578063ec43277214610599578063f2fde38b146105a157610211565b8063938d44f3146104eb57806393f1a40b146104f3578063ae600769146105385780... | {"success": true, "error": null, "results": {"detectors": [{"check": "unchecked-transfer", "impact": "High", "confidence": "Medium"}, {"check": "divide-before-multiply", "impact": "Medium", "confidence": "Medium"}, {"check": "incorrect-equality", "impact": "Medium", "confidence": "High"}, {"check": "reentrancy-no-eth",... | true | null | {'detectors': [{'check': 'unchecked-transfer', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'divide-before-multiply', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'incorrect-equality', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'reentrancy-no-eth', 'impact': 'Medium', 'confidence': 'Medium'}... | [
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655 | 0xE8E01964341C29b21e8E8837Fd1726dA0843958d | pragma solidity 0.6.6;
pragma experimental ABIEncoderV2;
contract DSAuthEvents {
event LogSetAuthority(address indexed authority);
event LogSetOwner(address indexed owner);
}
contract DSAuth is DSAuthEvents {
DSAuthority public authority;
address public owner;
constructor() public {
... | 0x6080604052600436106101235760003560e01c80638c8a7958116100a0578063d3661fa511610064578063d3661fa5146102a6578063d36b907d146102bb578063e074bb47146102d0578063ef9486df146102f0578063f1d02162146103055761012a565b80638c8a795814610225578063a3b8e5d11461023a578063a46a66c914610267578063c91d59fe1461027c578063d0cc7289146102915761012a... | {"success": true, "error": null, "results": {"detectors": [{"check": "tx-origin", "impact": "Medium", "confidence": "Medium"}, {"check": "name-reused", "impact": "High", "confidence": "High"}, {"check": "erc20-interface", "impact": "Medium", "confidence": "High"}, {"check": "arbitrary-send", "impact": "High", "confiden... | true | null | {'detectors': [{'check': 'tx-origin', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'name-reused', 'impact': 'High', 'confidence': 'High'}, {'check': 'erc20-interface', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'arbitrary-send', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'unchecked-lowleve... | [
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656 | 0xe9778E69a961e64d3cdBB34CF6778281d34667c2 | pragma solidity 0.7.0;
library AdditionalMath {
using SafeMath for uint256;
function max16(uint16 a, uint16 b) internal pure returns (uint16) {
return a >= b ? a : b;
}
function min16(uint16 a, uint16 b) internal pure returns (uint16) {
return a < b ? a : b;
}
/**
... | 0x60806040526004361061021a5760003560e01c806387a15dc911610123578063b15cf964116100ab578063e1fe7d231161006f578063e1fe7d231461068b578063e2fdcc17146106b5578063f2fde38b146106ca578063fc0c546a146106fd578063fc0e74d1146107125761021a565b8063b15cf96414610590578063bc859f44146105a5578063be7ff580146105cf578063cbce49ed146105e4578063cf... | {"success": true, "error": null, "results": {"detectors": [{"check": "uninitialized-state", "impact": "High", "confidence": "High"}, {"check": "reentrancy-no-eth", "impact": "Medium", "confidence": "Medium"}, {"check": "incorrect-equality", "impact": "Medium", "confidence": "High"}, {"check": "unused-return", "impact":... | true | null | {'detectors': [{'check': 'uninitialized-state', 'impact': 'High', 'confidence': 'High'}, {'check': 'reentrancy-no-eth', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'incorrect-equality', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'unused-return', 'impact': 'Medium', 'confidence': 'Medium'}]} | [
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657 | 0xE979a7f17F74288F87D958d4ab844CD401B510C2 | pragma solidity 0.6.6;
pragma experimental ABIEncoderV2;
contract DSAuthEvents {
event LogSetAuthority(address indexed authority);
event LogSetOwner(address indexed owner);
}
contract DSAuth is DSAuthEvents {
DSAuthority public authority;
address public owner;
constructor() public {
... | 0x | {"success": true, "error": null, "results": {"detectors": [{"check": "name-reused", "impact": "High", "confidence": "High"}, {"check": "erc20-interface", "impact": "Medium", "confidence": "High"}, {"check": "arbitrary-send", "impact": "High", "confidence": "Medium"}, {"check": "unchecked-lowlevel", "impact": "Medium", ... | true | null | {'detectors': [{'check': 'name-reused', 'impact': 'High', 'confidence': 'High'}, {'check': 'erc20-interface', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'arbitrary-send', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'unchecked-lowlevel', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'incorrec... | [
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658 | 0xea4addb4e9d1d1d645940e49aca202a261e4dc16 | pragma solidity 0.4.21;
contract EIP20Interface {
/* This is a slight change to the ERC20 base standard.
function totalSupply() constant returns (uint256 supply);
is replaced with:
uint256 public totalSupply;
This automatically creates a getter function for the totalSupply.
This is ... | 0x6060604052600436106100af576000357c0100000000000000000000000000000000000000000000000000000000900463ffffffff16806306fdde03146100b4578063095ea7b31461014257806318160ddd1461019c57806323b872dd146101c557806327e235e31461023e578063313ce5671461028b5780635c658165146102ba57806370a082311461032657806395d89b4114610373578063a9059cbb... | {"success": true, "error": null, "results": {}} | true | null | {} | [
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659 | 0xEa6556E350cD0C61452a26aB34E69EBf6f1808BA | pragma solidity 0.7.4;
library SafeMathLib {
function times(uint a, uint b) public pure returns (uint) {
uint c = a * b;
require(a == 0 || c / a == b, 'Overflow detected');
return c;
}
function minus(uint a, uint b) public pure returns (uint) {
require(b <= a, 'Underflow detected');
... | 0x608060405234801561001057600080fd5b50600436106101f05760003560e01c80639bea8e541161010f578063cb22b4b4116100a2578063d624ac3411610071578063d624ac3414610b3c578063d76627a114610b99578063eaaf77e614610bf6578063fc0c546a14610c3f576101f0565b8063cb22b4b4146109fe578063cc834f5a14610a4a578063d2fad7df14610aa2578063d4a22bde14610af85761... | {"success": true, "error": null, "results": {"detectors": [{"check": "unchecked-transfer", "impact": "High", "confidence": "Medium"}]}} | true | null | {'detectors': [{'check': 'unchecked-transfer', 'impact': 'High', 'confidence': 'Medium'}]} | [
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660 | 0xea8dca16428e2a3eae729db792865f53d662f031 | pragma solidity 0.6.12;
interface RewardPool {
function stake(uint) external;
function withdraw(uint) external;
function getReward() external;
function earned(address) external view returns (uint);
}
contract Initializable {
/**
* @dev Indicates that the contract has been initial... | 0x608060405234801561001057600080fd5b50600436106103a45760003560e01c806376d8b117116101e9578063bf88a6ff1161010f578063dfe05031116100ad578063efbe1c1c1161007c578063efbe1c1c14610a29578063f77c479114610a31578063fd96044b14610a39578063fec8ee0c14610a5f576103a4565b8063dfe05031146109cc578063e1522536146109d4578063e6f1daf214610a025780... | {"success": true, "error": null, "results": {"detectors": [{"check": "unused-return", "impact": "Medium", "confidence": "Medium"}, {"check": "divide-before-multiply", "impact": "Medium", "confidence": "Medium"}, {"check": "incorrect-equality", "impact": "Medium", "confidence": "High"}, {"check": "reentrancy-no-eth", "i... | true | null | {'detectors': [{'check': 'unused-return', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'divide-before-multiply', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'incorrect-equality', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'reentrancy-no-eth', 'impact': 'Medium', 'confidence': 'Medium'}]} | [
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661 | 0xEA8ffeAD840034CF625Ecde9f3dE1abF77F948Dc | pragma solidity 0.6.6;
pragma experimental ABIEncoderV2;
contract DSAuthEvents {
event LogSetAuthority(address indexed authority);
event LogSetOwner(address indexed owner);
}
contract DSAuth is DSAuthEvents {
DSAuthority public authority;
address public owner;
constructor() public {
... | 0x6080604052600436106102515760003560e01c80635c1e417211610139578063a8c90323116100b6578063d98bb5b11161007a578063d98bb5b114610620578063deca5f8814610640578063e3bbb4f114610660578063f05def8114610675578063f24ccbfe14610695578063f851a440146106aa57610251565b8063a8c90323146105a1578063b20b7209146105c1578063bfc36172146105d6578063bf... | {"success": true, "error": null, "results": {"detectors": [{"check": "tx-origin", "impact": "Medium", "confidence": "Medium"}, {"check": "name-reused", "impact": "High", "confidence": "High"}, {"check": "erc20-interface", "impact": "Medium", "confidence": "High"}, {"check": "arbitrary-send", "impact": "High", "confiden... | true | null | {'detectors': [{'check': 'tx-origin', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'name-reused', 'impact': 'High', 'confidence': 'High'}, {'check': 'erc20-interface', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'arbitrary-send', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'unchecked-lowleve... | [
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662 | 0xeAb126AE68de4c65834Ad9b6A570661cDbC2F6D0 | pragma solidity 0.5.17;
pragma experimental ABIEncoderV2;
interface PotLike {
function chi() external view returns (uint);
function pie(address) external view returns (uint);
function drip() external returns (uint);
function join(uint) external;
function exit(uint) external;
}
interface GemL... | 0x6080604052600436106102725760003560e01c806395d89b411161014f578063c37f68e2116100c1578063f2b3abbd1161007a578063f2b3abbd14610a22578063f3fdb15a14610a55578063f851a44014610a6a578063f8f9da2814610a7f578063fca7820b14610a94578063fe9c44ae14610abe57610272565b8063c37f68e2146108ff578063c5ebeaec14610958578063db006a7514610982578063dd... | {"success": true, "error": null, "results": {"detectors": [{"check": "uninitialized-state", "impact": "High", "confidence": "High"}, {"check": "reentrancy-no-eth", "impact": "Medium", "confidence": "Medium"}, {"check": "boolean-cst", "impact": "Medium", "confidence": "Medium"}, {"check": "controlled-delegatecall", "imp... | true | null | {'detectors': [{'check': 'uninitialized-state', 'impact': 'High', 'confidence': 'High'}, {'check': 'reentrancy-no-eth', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'boolean-cst', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'controlled-delegatecall', 'impact': 'High', 'confidence': 'Medium'}, {'che... | [
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663 | 0xebeb714456167154b874c1afa13f1cd98202e38a | pragma solidity 0.5.16;
interface IERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external view returns (string memory);
function symbol() external view returns (string memor... | 0x608060405234801561001057600080fd5b50600436106100885760003560e01c8063a2e74af61161005b578063a2e74af6146100f0578063c9c6539614610118578063e6a4390514610146578063f46901ed1461017457610088565b8063017e7e581461008d578063094b7415146100b15780631e3dd18b146100b9578063574f2ba3146100d6575b600080fd5b61009561019a565b604080516001600160... | {"success": true, "error": null, "results": {"detectors": [{"check": "weak-prng", "impact": "High", "confidence": "Medium"}, {"check": "reentrancy-no-eth", "impact": "Medium", "confidence": "Medium"}, {"check": "incorrect-equality", "impact": "Medium", "confidence": "High"}]}} | true | null | {'detectors': [{'check': 'weak-prng', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'reentrancy-no-eth', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'incorrect-equality', 'impact': 'Medium', 'confidence': 'High'}]} | [
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664 | 0xebecbdf1d39abfd679a25319a07cde299403349f | pragma solidity 0.5.16;
interface ISmartRightsCertify {
function certifyHash(address _owner, bytes32 _hash) external;
function certifyHash(bytes32 _hash) external;
function getHashOwner(bytes32 _hash) external view returns(address);
function addToWhitelist(address user) external;
}
contract ... | 0x608060405234801561001057600080fd5b506004361061004c5760003560e01c8063233b733e146100515780638636e828146100bf578063e43252d71461010d578063f56d6f8714610151575b600080fd5b61007d6004803603602081101561006757600080fd5b810190808035906020019092919050505061017f565b604051808273ffffffffffffffffffffffffffffffffffffffff1673ffffffffff... | {"success": true, "error": null, "results": {}} | true | null | {} | [
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665 | 0xec05190ba807a4b1819365cb22420c74925c7027 | pragma solidity 0.6.6;
pragma experimental ABIEncoderV2;
contract DSAuthEvents {
event LogSetAuthority(address indexed authority);
event LogSetOwner(address indexed owner);
}
contract DSAuth is DSAuthEvents {
DSAuthority public authority;
address public owner;
constructor() public {
... | 0x6080604052600436106102465760003560e01c8063526d646111610139578063a8c90323116100b6578063d98bb5b11161007a578063d98bb5b1146105f5578063deca5f8814610615578063e3bbb4f114610635578063f05def811461064a578063f24ccbfe1461066a578063f851a4401461067f57610246565b8063a8c9032314610576578063b20b720914610596578063bfc36172146105ab578063bf... | {"success": true, "error": null, "results": {"detectors": [{"check": "tx-origin", "impact": "Medium", "confidence": "Medium"}, {"check": "name-reused", "impact": "High", "confidence": "High"}, {"check": "erc20-interface", "impact": "Medium", "confidence": "High"}, {"check": "arbitrary-send", "impact": "High", "confiden... | true | null | {'detectors': [{'check': 'tx-origin', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'name-reused', 'impact': 'High', 'confidence': 'High'}, {'check': 'erc20-interface', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'arbitrary-send', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'unchecked-lowleve... | [
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666 | 0xec476dd4dbf8dfa147244867c0b3b9a5f11d171c | pragma solidity 0.6.5;
pragma experimental ABIEncoderV2;
interface ERC20 {
function approve(address, uint256) external returns (bool);
function transfer(address, uint256) external returns (bool);
function transferFrom(address, address, uint256) external returns (bool);
function name() external view... | 0x608060405234801561001057600080fd5b50600436106100415760003560e01c806330fa738c14610046578063d4fac45d14610064578063f72c079114610084575b600080fd5b61004e61008c565b60405161005b919061023d565b60405180910390f35b6100776100723660046101d0565b6100c5565b60405161005b91906102ae565b61004e610173565b604051806040016040528060148152602001... | {"success": true, "error": null, "results": {}} | true | null | {} | [
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667 | 0xec9cc78463b72d7246e8189df5eed5fdc3508e71 | pragma solidity 0.6.12;
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among o... | 0x608060405234801561001057600080fd5b50600436106100935760003560e01c8063901be04111610066578063901be04114610307578063a7eaa1861461033b578063bc197c811461049e578063d533249a14610634578063f23a6e61146106ac57610093565b806301ffc9a71461009857806307662922146100fb57806352aecb24146101c25780638920e8911461028f575b600080fd5b6100e3600480... | {"success": true, "error": null, "results": {"detectors": [{"check": "uninitialized-state", "impact": "High", "confidence": "High"}]}} | true | null | {'detectors': [{'check': 'uninitialized-state', 'impact': 'High', 'confidence': 'High'}]} | [
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668 | 0xecb7d1c6be79f4693bef2c7c10386dfdb8980a83 | pragma solidity 0.5.17;
interface GAMER {
function gamersScalingFactor() external view returns (uint256);
function balanceOfUnderlying(address amount) external returns(uint256);
function mint(address to, uint256 amount) external;
}
library Math {
/**
* @dev Returns the largest of two number... | 0x608060405234801561001057600080fd5b50600436106103205760003560e01c80636ebcf607116101a75780639e141c31116100ee578063cfad57a211610097578063f2fde38b11610071578063f2fde38b14610923578063f3fef3a314610956578063fe1695311461098f57610320565b8063cfad57a2146108e0578063dbd92a5c14610913578063ebe2b12b1461091b57610320565b8063baed537111... | {"success": true, "error": null, "results": {"detectors": [{"check": "divide-before-multiply", "impact": "Medium", "confidence": "Medium"}, {"check": "incorrect-equality", "impact": "Medium", "confidence": "High"}, {"check": "reentrancy-no-eth", "impact": "Medium", "confidence": "Medium"}]}} | true | null | {'detectors': [{'check': 'divide-before-multiply', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'incorrect-equality', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'reentrancy-no-eth', 'impact': 'Medium', 'confidence': 'Medium'}]} | [
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669 | 0xECc90A5F757fE8351d5119175c8167387DADA97E | pragma solidity 0.6.8;
pragma experimental ABIEncoderV2;
contract Initializable {
/**
* @dev Indicates that the contract has been initialized.
*/
bool private initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool private initializing;
/... | 0x73ecc90a5f757fe8351d5119175c8167387dada97e30146080604052600436106100925760003560e01c8063567d1ebf11610065578063567d1ebf146100fc578063a385fb9614610104578063d7cc2a031461010c578063e6092ca61461012c57610092565b8063030293b2146100975780630f12fd2b146100c057806346784971146100d35780634cfea68a146100f4575b600080fd5b6100aa6100a536... | {"success": true, "error": null, "results": {"detectors": [{"check": "uninitialized-state", "impact": "High", "confidence": "High"}, {"check": "divide-before-multiply", "impact": "Medium", "confidence": "Medium"}, {"check": "reentrancy-no-eth", "impact": "Medium", "confidence": "Medium"}, {"check": "incorrect-equality"... | true | null | {'detectors': [{'check': 'uninitialized-state', 'impact': 'High', 'confidence': 'High'}, {'check': 'divide-before-multiply', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'reentrancy-no-eth', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'incorrect-equality', 'impact': 'Medium', 'confidence': 'High'},... | [
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670 | 0xed5309daac912a52d985c317576a1b3f5020fdc9 | pragma solidity 0.6.6;
pragma experimental ABIEncoderV2;
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(addre... | 0x60806040526004361061021e5760003560e01c80637e16e6e111610123578063a26e1186116100ab578063dca40d9e1161006f578063dca40d9e146105d4578063e4bd7074146105f4578063f75b98ce14610614578063f851a44014610634578063fa84702e1461064957610225565b8063a26e11861461054c578063a3f5d8cc1461055f578063b69f651114610574578063ce5494bb14610587578063cf... | {"success": true, "error": null, "results": {"detectors": [{"check": "erc20-interface", "impact": "Medium", "confidence": "High"}, {"check": "arbitrary-send", "impact": "High", "confidence": "Medium"}, {"check": "incorrect-equality", "impact": "Medium", "confidence": "High"}, {"check": "reentrancy-eth", "impact": "High... | true | null | {'detectors': [{'check': 'erc20-interface', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'arbitrary-send', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'incorrect-equality', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'reentrancy-eth', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'msg-v... | [
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671 | 0xed6aad9650815d1647480caa1133043800d31533 | pragma solidity 0.7.1;
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
*... | 0x608060405234801561001057600080fd5b50600436106100a95760003560e01c80633950935111610071578063395093511461025857806370a08231146102bc57806395d89b4114610314578063a457c2d714610397578063a9059cbb146103fb578063dd62ed3e1461045f576100a9565b806306fdde03146100ae578063095ea7b31461013157806318160ddd1461019557806323b872dd146101b35780... | {"success": true, "error": null, "results": {}} | true | null | {} | [
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672 | 0xee03e3d55d52a35ee364fce45cd1373e0f53f8d9 | pragma solidity 0.5.17;
contract NamedContract {
/// @notice The name of contract, which can be set once
string public name;
/// @notice Sets contract name.
function setContractName(string memory newName) internal {
name = newName;
}
}
contract Ownable {
/// @notice Storage p... | 0x60806040526004361061007b5760003560e01c8063a2c1cae21161004e578063a2c1cae2146102b6578063aaf10f42146102cd578063d784d42614610324578063e9c8588d146103755761007b565b806306fdde031461012757806331d062c3146101b757806387f4427e1461020e578063893d20e81461025f575b600080369050116100f4576040517f08c379a000000000000000000000000000000000... | {"success": true, "error": null, "results": {}} | true | null | {} | [
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673 | 0xee1520F6AaBf3F5F125F2A4c096a0DE083b82Fc9 | pragma solidity 0.6.12;
abstract contract Context {
function _msgSender() internal view virtual returns (address payable) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes memory) {
this; // silence state mutability warning without generating bytecode - ... | 0x608060405234801561001057600080fd5b50600436106101775760003560e01c8063a4e2d634116100d8578063cf3090121161008c578063eec0701f11610066578063eec0701f146104f4578063f83d08ba146104fc578063fcd13d651461050457610177565b8063cf309012146104dc578063d2523526146104e4578063e4e99222146104ec57610177565b8063acdb8e04116100bd578063acdb8e0414... | {"success": true, "error": null, "results": {}} | true | null | {} | [
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674 | 0xee15db1fb40e00aeacf3600cbcec068d0afd4f69 | pragma solidity 0.6.6;
pragma experimental ABIEncoderV2;
contract DSAuthEvents {
event LogSetAuthority(address indexed authority);
event LogSetOwner(address indexed owner);
}
contract DSAuth is DSAuthEvents {
DSAuthority public authority;
address public owner;
constructor() public {
... | 0x6080604052600436106100e15760003560e01c806341c0e1b51161007f578063b91351e111610059578063b91351e11461029e578063cae270b6146102e1578063deca5f8814610317578063f851a4401461034a576100e8565b806341c0e1b5146102415780638da5cb5b14610256578063a7304bf71461026b576100e8565b806329f7fc9e116100bb57806329f7fc9e1461019b5780632a441f05146101... | {"success": true, "error": null, "results": {"detectors": [{"check": "tx-origin", "impact": "Medium", "confidence": "Medium"}, {"check": "name-reused", "impact": "High", "confidence": "High"}, {"check": "erc20-interface", "impact": "Medium", "confidence": "High"}, {"check": "arbitrary-send", "impact": "High", "confiden... | true | null | {'detectors': [{'check': 'tx-origin', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'name-reused', 'impact': 'High', 'confidence': 'High'}, {'check': 'erc20-interface', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'arbitrary-send', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'unchecked-lowleve... | [
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675 | 0xee4805585e8a7b7fcf55fc9fff092afe46612cf0 | pragma solidity 0.7.1;
abstract contract Context {
// Empty internal constructor, to prevent people from mistakenly deploying
// an instance of this contract, which should be used via inheritance.
constructor () { }
function _msgSender() internal view virtual returns (address payable) {
... | 0x6080604052600436106100a75760003560e01c80638bd89075116100645780638bd890751461019f5780638da5cb5b146101f0578063acb0808e14610231578063cf3090121461025c578063d5999a5c14610287578063f2fde38b146102b2576100a7565b80632b3e43c6146100ac5780633488bd19146100d75780633ccfd60b14610102578063715018a61461011957806377c13549146101305780638b... | {"success": true, "error": null, "results": {"detectors": [{"check": "unchecked-transfer", "impact": "High", "confidence": "Medium"}, {"check": "locked-ether", "impact": "Medium", "confidence": "High"}]}} | true | null | {'detectors': [{'check': 'unchecked-transfer', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'locked-ether', 'impact': 'Medium', 'confidence': 'High'}]} | [
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676 | 0xeea9ae787f3a620072d13b2cdc8cabffb9c0ab96 | pragma solidity 0.7.0;
contract Context {
function _msgSender() internal view returns (address payable) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes memory) {
this; // silence state mutability warning without generating bytecode - see https://... | 0x608060405234801561001057600080fd5b50600436106100e95760003560e01c806342966c681161008c57806395d89b411161006657806395d89b41146103c0578063a457c2d714610443578063a9059cbb146104a7578063dd62ed3e1461050b576100e9565b806342966c681461030657806370a0823114610334578063945391121461038c576100e9565b806318160ddd116100c857806318160ddd14... | {"success": true, "error": null, "results": {}} | true | null | {} | [
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677 | 0xeef9f339514298c6a857efcfc1a762af84438dee | pragma solidity 0.6.12;
interface IERC1820Registry {
/**
* @dev Sets `newManager` as the manager for `account`. A manager of an
* account is able to set interface implementers for it.
*
* By default, each account is its own manager. Passing a value of `0x0` in
* `newManager` will res... | 0x608060405234801561001057600080fd5b50600436106101775760003560e01c806370a08231116100d8578063a9059cbb1161008c578063dd62ed3e11610066578063dd62ed3e1461041d578063e3ee160e14610458578063e94a0102146104c457610177565b8063a9059cbb1461037c578063c473af33146103b5578063d505accf146103bd57610177565b806395d89b41116100bd57806395d89b4114... | {"success": true, "error": null, "results": {"detectors": [{"check": "divide-before-multiply", "impact": "Medium", "confidence": "Medium"}, {"check": "name-reused", "impact": "High", "confidence": "High"}, {"check": "incorrect-equality", "impact": "Medium", "confidence": "High"}, {"check": "reentrancy-eth", "impact": "... | true | null | {'detectors': [{'check': 'divide-before-multiply', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'name-reused', 'impact': 'High', 'confidence': 'High'}, {'check': 'incorrect-equality', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'reentrancy-eth', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'u... | [
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678 | 0xefa47d67d442b6b52867627ca55d43e72d875184 | pragma solidity 0.6.6;
pragma experimental ABIEncoderV2;
contract DSAuthEvents {
event LogSetAuthority(address indexed authority);
event LogSetOwner(address indexed owner);
}
contract DSAuth is DSAuthEvents {
DSAuthority public authority;
address public owner;
constructor() public {
... | 0x60806040526004361061023f5760003560e01c80636738929f1161012e578063cfac57c7116100ab578063e3841dad1161006f578063e3841dad14610587578063e9c2b6f91461059a578063ed202109146105ad578063f1d25396146105cd578063f24ccbfe146105e257610246565b8063cfac57c7146104e3578063d0cc72891461050d578063d3661fa514610522578063e304c60814610537578063e3... | {"success": true, "error": null, "results": {"detectors": [{"check": "tx-origin", "impact": "Medium", "confidence": "Medium"}, {"check": "name-reused", "impact": "High", "confidence": "High"}, {"check": "erc20-interface", "impact": "Medium", "confidence": "High"}, {"check": "arbitrary-send", "impact": "High", "confiden... | true | null | {'detectors': [{'check': 'tx-origin', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'name-reused', 'impact': 'High', 'confidence': 'High'}, {'check': 'erc20-interface', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'arbitrary-send', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'unchecked-lowleve... | [
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1... |
679 | 0xEffc394E44d68423447218daBefBB49F78bEc2BB | pragma solidity 0.6.6;
pragma experimental ABIEncoderV2;
contract DSAuthEvents {
event LogSetAuthority(address indexed authority);
event LogSetOwner(address indexed owner);
}
contract DSAuth is DSAuthEvents {
DSAuthority public authority;
address public owner;
constructor() public {
... | 0x608060405234801561001057600080fd5b506004361061014d5760003560e01c806351c4a631116100c3578063870e44d91161007c578063870e44d9146102bb5780638fb5a482146102c3578063bfe142a3146102d6578063cae81e6e146102de578063d802178e146102f1578063d98bb5b1146103135761014d565b806351c4a6311461025d578063526d6461146102705780635f3bc8e7146102785780... | {"success": true, "error": null, "results": {"detectors": [{"check": "tx-origin", "impact": "Medium", "confidence": "Medium"}, {"check": "name-reused", "impact": "High", "confidence": "High"}, {"check": "erc20-interface", "impact": "Medium", "confidence": "High"}, {"check": "arbitrary-send", "impact": "High", "confiden... | true | null | {'detectors': [{'check': 'tx-origin', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'name-reused', 'impact': 'High', 'confidence': 'High'}, {'check': 'erc20-interface', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'arbitrary-send', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'unchecked-lowleve... | [
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680 | 0xf03650933fc943a5987db2dd6c33a836190d6f38 | pragma solidity 0.6.12;
pragma experimental ABIEncoderV2;
contract IAbacusOracle{
uint public callFee;
function getJobResponse(uint64 _jobId) public view returns(uint64[] memory _values){ }
function scheduleFunc(address to ,uint callTime, bytes memory data , uint fee , uint gaslimit ,uint gasprice... | 0x608060405234801561001057600080fd5b50600436106101c45760003560e01c8063b9082981116100f9578063e0059b3111610097578063ec020d4511610071578063ec020d45146103f8578063f1d80b8914610418578063f5da23ab1461042b578063fd90d0971461043e576101c4565b8063e0059b31146103bf578063e364db92146103d2578063e86ef40b146103e5576101c4565b8063c1afcd3e11... | {"success": true, "error": null, "results": {"detectors": [{"check": "divide-before-multiply", "impact": "Medium", "confidence": "Medium"}, {"check": "reentrancy-no-eth", "impact": "Medium", "confidence": "Medium"}, {"check": "erc20-interface", "impact": "Medium", "confidence": "High"}, {"check": "arbitrary-send", "imp... | true | null | {'detectors': [{'check': 'divide-before-multiply', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'reentrancy-no-eth', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'erc20-interface', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'arbitrary-send', 'impact': 'High', 'confidence': 'Medium'}, {'che... | [
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681 | 0xf04bc80900f2248878b2ad9478f3109239862c66 | pragma solidity 0.4.21;
contract EIP20Interface {
/* This is a slight change to the ERC20 base standard.
function totalSupply() constant returns (uint256 supply);
is replaced with:
uint256 public totalSupply;
This automatically creates a getter function for the totalSupply.
This is ... | 0x6060604052600436106100af576000357c0100000000000000000000000000000000000000000000000000000000900463ffffffff16806306fdde03146100b4578063095ea7b31461014257806318160ddd1461019c57806323b872dd146101c557806327e235e31461023e578063313ce5671461028b5780635c658165146102ba57806370a082311461032657806395d89b4114610373578063a9059cbb... | {"success": true, "error": null, "results": {}} | true | null | {} | [
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682 | 0xf1949c405B7c134DC37FFF5637CD1c305c23081a | pragma solidity 0.6.10;
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view retu... | 0x608060405234801561001057600080fd5b50600436106100575760003560e01c806307f3b8bb1461005c57806393b9740a146100a6578063c029e868146100c4578063c24126761461010e578063fd22103114610158575b600080fd5b610064610162565b604051808273ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200191505060... | {"success": true, "error": null, "results": {"detectors": [{"check": "unchecked-transfer", "impact": "High", "confidence": "Medium"}, {"check": "reentrancy-no-eth", "impact": "Medium", "confidence": "Medium"}]}} | true | null | {'detectors': [{'check': 'unchecked-transfer', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'reentrancy-no-eth', 'impact': 'Medium', 'confidence': 'Medium'}]} | [
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683 | 0xf1A9589880DbF393F32A5b2d5a0054Fa10385074 | pragma solidity 0.7.4;
interface IArbitrable {
/**
* @dev To be raised when a ruling is given.
* @param _arbitrator The arbitrator giving the ruling.
* @param _disputeID ID of the dispute in the Arbitrator contract.
* @param _ruling The ruling which was given.
*/
event Ruling(IA... | 0x60806040526004361061023b5760003560e01c806382b350171161012e578063b5f3918b116100ab578063cc7b9d061161006f578063cc7b9d0614610a77578063d2dbe1d814610aa2578063d661dd3114610acc578063e4c0aaf414610ae1578063fc6f8f1614610b145761023b565b8063b5f3918b14610984578063b8573185146109ae578063c17a340e146109cb578063c36cd196146109e0578063c4... | {"success": true, "error": null, "results": {"detectors": [{"check": "reentrancy-eth", "impact": "High", "confidence": "Medium"}, {"check": "unchecked-send", "impact": "Medium", "confidence": "Medium"}, {"check": "arbitrary-send", "impact": "High", "confidence": "Medium"}]}} | true | null | {'detectors': [{'check': 'reentrancy-eth', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'unchecked-send', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'arbitrary-send', 'impact': 'High', 'confidence': 'Medium'}]} | [
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684 | 0xf247f7d61babed6551cC5fb4b8ee712C57247997 | pragma solidity 0.6.8;
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among ot... | 0x6080604052600436106102ae5760003560e01c806397a6d27411610175578063c73cce39116100dc578063f2a6f21511610095578063fa70c3021161006f578063fa70c30214610d53578063fb15298d14610ddd578063fb34499d14610e16578063fc9d015414610e43576102ae565b8063f2a6f21514610cf6578063f2fde38b14610d0b578063f338fc1914610d3e576102ae565b8063c73cce3914610a... | {"success": true, "error": null, "results": {"detectors": [{"check": "weak-prng", "impact": "High", "confidence": "Medium"}, {"check": "unused-return", "impact": "Medium", "confidence": "Medium"}, {"check": "arbitrary-send", "impact": "High", "confidence": "Medium"}]}} | true | null | {'detectors': [{'check': 'weak-prng', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'unused-return', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'arbitrary-send', 'impact': 'High', 'confidence': 'Medium'}]} | [
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685 | 0xf295b379960fc5eb0ae717ea14c43f75c6049f4d | pragma solidity 0.6.10;
pragma experimental ABIEncoderV2;
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a... | 0x608060405234801561001057600080fd5b50600436106101365760003560e01c806376d07f6b116100b8578063a217fddf1161007c578063a217fddf14610261578063b39e12cf14610269578063c09558db14610271578063c4d66de814610284578063ca15c87314610297578063d547741f146102aa57610136565b806376d07f6b146101f55780639010d07c1461020857806391d148541461021b5780... | {"success": true, "error": null, "results": {}} | true | null | {} | [
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686 | 0xf2ddae89449b7d26309a5d54614b1fc99c608af5 | pragma solidity 0.5.17;
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address who) external view returns ... | 0x60806040526004361061012a5760003560e01c80636b9db4e6116100ab57806395d89b411161006f57806395d89b4114610670578063a457c2d714610700578063a9059cbb14610773578063be9a6555146107e6578063dd62ed3e146107fd578063f2fde38b146108825761012a565b80636b9db4e6146104be57806370a082311461052a57806375f12b211461058f57806379cc6790146105be5780638d... | {"success": true, "error": null, "results": {"detectors": [{"check": "locked-ether", "impact": "Medium", "confidence": "High"}]}} | true | null | {'detectors': [{'check': 'locked-ether', 'impact': 'Medium', 'confidence': 'High'}]} | [
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687 | 0xf4128B00AFdA933428056d0F0D1d7652aF7e2B35 | pragma solidity 0.6.12;
abstract contract Context {
function _msgSender() internal view virtual returns (address payable) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes memory) {
this; // silence state mutability warning without generating bytecode - ... | 0x6080604052600436106102e85760003560e01c806385335da811610190578063bc41ab72116100dc578063ebd0905411610095578063f6156d5a1161006f578063f6156d5a14610a69578063fbcd9b0514610a93578063fbf683c114610aa8578063ff4dfa9614610abd576102ef565b8063ebd09054146109ee578063f02a7d1914610a03578063f2fde38b14610a36576102ef565b8063bc41ab72146108... | {"success": true, "error": null, "results": {"detectors": [{"check": "reentrancy-no-eth", "impact": "Medium", "confidence": "Medium"}, {"check": "tautology", "impact": "Medium", "confidence": "High"}, {"check": "arbitrary-send", "impact": "High", "confidence": "Medium"}, {"check": "incorrect-equality", "impact": "Mediu... | true | null | {'detectors': [{'check': 'reentrancy-no-eth', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'tautology', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'arbitrary-send', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'incorrect-equality', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'reentr... | [
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688 | 0xf45eff806d9a38efdb6fcc00cf161cc19acc32af | pragma solidity 0.6.12;
pragma experimental ABIEncoderV2;
contract IAbacusOracle{
uint public callFee;
function getJobResponse(uint64 _jobId) public view returns(uint64[] memory _values){ }
function scheduleFunc(address to ,uint callTime, bytes memory data , uint fee , uint gaslimit ,uint gasprice... | 0x6080604052600436106101185760003560e01c80638da5cb5b116100a0578063d4001a0511610064578063d4001a05146102bf578063e0059b31146102df578063f7f56d63146102ff578063fd950f751461031f578063fea6884d1461033f5761011f565b80638da5cb5b1461021b578063a6f9dae11461023d578063b734c0f41461025d578063bc01b2ba14610272578063c012aa3a146102925761011f... | {"success": true, "error": null, "results": {"detectors": [{"check": "divide-before-multiply", "impact": "Medium", "confidence": "Medium"}, {"check": "reentrancy-no-eth", "impact": "Medium", "confidence": "Medium"}, {"check": "erc20-interface", "impact": "Medium", "confidence": "High"}, {"check": "arbitrary-send", "imp... | true | null | {'detectors': [{'check': 'divide-before-multiply', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'reentrancy-no-eth', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'erc20-interface', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'arbitrary-send', 'impact': 'High', 'confidence': 'Medium'}, {'che... | [
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689 | 0xf513d1ce6b67040f154ca46552f6e4e7ab25ed05 | pragma solidity 0.6.12;
enum reservationstatus {CANCELLED, ACTIVATED, COMPLETED}
interface DaiErc20 {
function transfer(address, uint) external returns (bool);
function transferFrom(address,address,uint256) external returns (bool);
function approve(address,uint256) external returns (bool);
functio... | 0x608060405234801561001057600080fd5b50600436106100cf5760003560e01c8063481c6a751161008c5780635c4a793f116100665780635c4a793f1461028e578063867b568b146102ab578063d0ebdbe7146102c7578063d551818c146102ed576100cf565b8063481c6a751461021d578063482c2fa3146102415780635be701d414610249576100cf565b806303e871d1146100d4578063062642b914... | {"success": true, "error": null, "results": {"detectors": [{"check": "unchecked-transfer", "impact": "High", "confidence": "Medium"}]}} | true | null | {'detectors': [{'check': 'unchecked-transfer', 'impact': 'High', 'confidence': 'Medium'}]} | [
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690 | 0xf567537ddb62Fa964Fb6d877738905789ab57Efd | pragma solidity 0.6.12;
abstract contract Context {
function _msgSender() internal view virtual returns (address payable) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes memory) {
this; // silence state mutability warning without generating bytec... | 0x608060405234801561001057600080fd5b50600436106100a95760003560e01c80633950935111610071578063395093511461025857806370a08231146102bc57806395d89b4114610314578063a457c2d714610397578063a9059cbb146103fb578063dd62ed3e1461045f576100a9565b806306fdde03146100ae578063095ea7b31461013157806318160ddd1461019557806323b872dd146101b35780... | {"success": true, "error": null, "results": {}} | true | null | {} | [
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691 | 0xf56842Af3B56Fd72d17cB103f92d027bBa912e89 | pragma solidity 0.6.12;
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among o... | 0x608060405234801561001057600080fd5b50600436106101a95760003560e01c806370a08231116100f9578063a9059cbb11610097578063c3cda52011610071578063c3cda5201461053b578063dd62ed3e14610582578063e7a324dc146105b0578063f1127ed8146105b8576101a9565b8063a9059cbb146104c3578063b4b5ea57146104ef578063b5ed298a14610515576101a9565b80637ecebe0011... | {"success": true, "error": null, "results": {"detectors": [{"check": "incorrect-equality", "impact": "Medium", "confidence": "High"}]}} | true | null | {'detectors': [{'check': 'incorrect-equality', 'impact': 'Medium', 'confidence': 'High'}]} | [
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692 | 0xf5851d159fd0b8c78bb91c705940910450ada637 | pragma solidity 0.6.12;
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view retu... | 0x6080604052600436106102045760003560e01c80635ab7e6c711610118578063e4d01a64116100a0578063f42657151161006f578063f426571514610733578063f851a44014610750578063f8d5054214610765578063fc0c546a14610899578063fed0a20e146108ae57610204565b8063e4d01a6414610697578063e7f9cefd146106c1578063eb87e89b146106d6578063f1e5ff3e1461070057610204... | {"success": true, "error": null, "results": {"detectors": [{"check": "weak-prng", "impact": "High", "confidence": "Medium"}, {"check": "incorrect-equality", "impact": "Medium", "confidence": "High"}, {"check": "unchecked-transfer", "impact": "High", "confidence": "Medium"}]}} | true | null | {'detectors': [{'check': 'weak-prng', 'impact': 'High', 'confidence': 'Medium'}, {'check': 'incorrect-equality', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'unchecked-transfer', 'impact': 'High', 'confidence': 'Medium'}]} | [
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693 | 0xf58e1431B4bb3F092db0B14a8D1054ED8c613D7E | pragma solidity 0.5.17;
pragma experimental ABIEncoderV2;
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a... | 0x608060405234801561001057600080fd5b506004361061009e5760003560e01c80634f0db7f5116100665780634f0db7f51461026357806373f03dff146102ad57806375172a8b146102f1578063f4325d671461030f578063fa8f3455146103595761009e565b8063078e9d53146100a357806311fd8a831461017b57806312d43a51146101c5578063252408101461020f5780634bda2e2014610259575b... | {"success": true, "error": null, "results": {"detectors": [{"check": "reentrancy-no-eth", "impact": "Medium", "confidence": "Medium"}, {"check": "unused-return", "impact": "Medium", "confidence": "Medium"}]}} | true | null | {'detectors': [{'check': 'reentrancy-no-eth', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'unused-return', 'impact': 'Medium', 'confidence': 'Medium'}]} | [
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694 | 0xf58f90cb329f812f6d7c5a7b14ffccacbe9c034e | pragma solidity 0.6.5;
pragma experimental ABIEncoderV2;
interface ERC20 {
function approve(address, uint256) external returns (bool);
function transfer(address, uint256) external returns (bool);
function transferFrom(address, address, uint256) external returns (bool);
function name() external view... | 0x608060405234801561001057600080fd5b50600436106100415760003560e01c806330fa738c14610046578063d4fac45d14610064578063f72c079114610084575b600080fd5b61004e61008c565b60405161005b919061023b565b60405180910390f35b6100776100723660046101ce565b6100c5565b60405161005b91906102ac565b61004e610171565b604051806040016040528060058152602001... | {"success": true, "error": null, "results": {}} | true | null | {} | [
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695 | 0xf644d4477cd8db7791cea3013cb053b3fec4beb3 | pragma solidity 0.7.1;
contract Lion {
using SafeMath for uint256;
string public constant name = "Cryptoenter LION token";
string public constant symbol = "LION";
uint8 public constant decimals = 8;
uint256 public constant decimals_multiplier = 100_000_000;
address adminAddres... | 0x608060405234801561001057600080fd5b50600436106101005760003560e01c806395d89b4111610097578063c3678f6511610066578063c3678f6514610502578063dd62ed3e14610520578063e6400bbe14610598578063e8046759146105b857610100565b806395d89b41146103a3578063a9059cbb14610426578063b87b72851461048a578063bd355ec7146104a857610100565b8063313ce56711... | {"success": true, "error": null, "results": {"detectors": [{"check": "divide-before-multiply", "impact": "Medium", "confidence": "Medium"}]}} | true | null | {'detectors': [{'check': 'divide-before-multiply', 'impact': 'Medium', 'confidence': 'Medium'}]} | [
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696 | 0xF657BB6bc979bf34d49e38AfBA34D5FD2A45B0Ca | pragma solidity 0.6.12;
interface ILockStorage {
function isLocked(address _wallet) external view returns (bool);
function getLock(address _wallet) external view returns (uint256);
function getLocker(address _wallet) external view returns (address);
function setLock(address _wallet, address _... | 0x608060405234801561001057600080fd5b506004361061004c5760003560e01c80634a4fbeec146100515780636b221d141461008b5780636b9db4e6146100c3578063919884bf146100fb575b600080fd5b6100776004803603602081101561006757600080fd5b50356001600160a01b031661013d565b604080519115158252519081900360200190f35b6100c1600480360360608110156100a1576000... | {"success": true, "error": null, "results": {"detectors": [{"check": "arbitrary-send", "impact": "High", "confidence": "Medium"}]}} | true | null | {'detectors': [{'check': 'arbitrary-send', 'impact': 'High', 'confidence': 'Medium'}]} | [
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697 | 0xf6c0df448081239c79f9cabfd0ce93ddc9b9a317 | pragma solidity 0.6.12;
contract Initializable {
/**
* @dev Indicates that the contract has been initialized.
*/
bool private initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool private initializing;
/**
* @dev Modifi... | 0x608060405234801561001057600080fd5b50600436106103995760003560e01c806376d8b117116101e9578063bf88a6ff1161010f578063dfe05031116100ad578063efbe1c1c1161007c578063efbe1c1c146109d6578063f77c4791146109de578063fd96044b146109e6578063fec8ee0c14610a0c57610399565b8063dfe0503114610979578063e152253614610981578063e6f1daf2146109af5780... | {"success": true, "error": null, "results": {"detectors": [{"check": "unused-return", "impact": "Medium", "confidence": "Medium"}, {"check": "divide-before-multiply", "impact": "Medium", "confidence": "Medium"}, {"check": "incorrect-equality", "impact": "Medium", "confidence": "High"}, {"check": "reentrancy-no-eth", "i... | true | null | {'detectors': [{'check': 'unused-return', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'divide-before-multiply', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'incorrect-equality', 'impact': 'Medium', 'confidence': 'High'}, {'check': 'reentrancy-no-eth', 'impact': 'Medium', 'confidence': 'Medium'}]} | [
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698 | 0xf6c8e6083ff7b328e524681576139725c990c67d | pragma solidity 0.6.5;
pragma experimental ABIEncoderV2;
struct ProtocolBalance {
ProtocolMetadata metadata;
AdapterBalance[] adapterBalances;
}
struct ProtocolMetadata {
string name;
string description;
string websiteURL;
string iconURL;
uint256 version;
}
struct AdapterBalance ... | 0x608060405234801561001057600080fd5b50600436106100365760003560e01c80632a50c1461461003b57806379b1833414610064575b600080fd5b61004e610049366004610805565b610084565b60405161005b9190610b06565b60405180910390f35b610077610072366004610805565b610288565b60405161005b9190610a54565b61008c610782565b60405180608001604052808373ffffffffff... | {"success": true, "error": null, "results": {}} | true | null | {} | [
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1... |
699 | 0xF6d5137CfA2C5f23530a0FCe66056B12B985554d | pragma solidity 0.7.3;
library AdditionalMath {
using SafeMath for uint256;
function max16(uint16 a, uint16 b) internal pure returns (uint16) {
return a >= b ? a : b;
}
function min16(uint16 a, uint16 b) internal pure returns (uint16) {
return a < b ? a : b;
}
/**
... | 0x608060405234801561001057600080fd5b506004361061048b5760003560e01c80638f32d59b11610262578063cd50f60111610151578063e38a303b116100ce578063ef95e0ba11610092578063ef95e0ba1461101d578063f14faf6f1461103e578063f2fde38b1461105b578063f6910cb814611081578063fc0c546a14611089578063fd5e6dd1146110915761048b565b8063e38a303b14610f695780... | {"success": true, "error": null, "results": {"detectors": [{"check": "uninitialized-state", "impact": "High", "confidence": "High"}, {"check": "reentrancy-no-eth", "impact": "Medium", "confidence": "Medium"}, {"check": "incorrect-equality", "impact": "Medium", "confidence": "High"}]}} | true | null | {'detectors': [{'check': 'uninitialized-state', 'impact': 'High', 'confidence': 'High'}, {'check': 'reentrancy-no-eth', 'impact': 'Medium', 'confidence': 'Medium'}, {'check': 'incorrect-equality', 'impact': 'Medium', 'confidence': 'High'}]} | [
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