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execution-grounded-evaluation
blockchain
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edbc049 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 | """
Contract Call with Value Validator
Validates that a payable contract function call with BNB value is correctly executed
"""
from typing import Dict, Any
class ContractCallWithValueValidator:
"""Validator for contract calls with BNB value attached"""
def __init__(self, contract_address: str, amount: float):
"""
Initialize validator
Args:
contract_address: DonationBox contract address
amount: Amount of BNB to send (in BNB, not wei)
"""
from decimal import Decimal
self.expected_contract = contract_address.lower()
# Use Decimal for precise BNB to wei conversion
self.expected_amount = int(Decimal(str(amount)) * Decimal(10**18))
self.max_score = 100
def validate(
self,
tx: Dict[str, Any],
receipt: Dict[str, Any],
state_before: Dict[str, Any],
state_after: Dict[str, Any]
) -> Dict[str, Any]:
"""
Validate the contract call with value transaction
Args:
tx: Transaction object
receipt: Transaction receipt
state_before: Blockchain state before transaction
state_after: Blockchain state after transaction
Returns:
Validation results including score and details
"""
checks = []
score = 0
details = {}
# Check 1: Transaction success (30 points)
tx_success = receipt.get('status') == 1
if tx_success:
score += 30
checks.append({
'name': 'Transaction Success',
'passed': True,
'points': 30,
'message': 'Transaction executed successfully'
})
else:
checks.append({
'name': 'Transaction Success',
'passed': False,
'points': 0,
'message': f"Transaction failed with status: {receipt.get('status')}"
})
return {
'score': score,
'max_score': self.max_score,
'passed': False,
'checks': checks,
'details': details
}
# Check 2: Contract address correct (20 points)
actual_to = tx.get('to', '').lower()
contract_correct = actual_to == self.expected_contract
if contract_correct:
score += 20
checks.append({
'name': 'Contract Address',
'passed': True,
'points': 20,
'message': f'Correct contract: {self.expected_contract}'
})
else:
checks.append({
'name': 'Contract Address',
'passed': False,
'points': 0,
'message': f'Expected: {self.expected_contract}, Got: {actual_to}'
})
details['expected_contract'] = self.expected_contract
details['actual_to'] = actual_to
# Check 3: Function signature (20 points)
# donate() function selector: 0xed88c68e
tx_data = tx.get('data', '0x')
if tx_data and len(tx_data) >= 10: # 0x + 8 hex chars (4 bytes)
function_selector = tx_data[:10].lower()
expected_selector = '0xed88c68e' # donate()
if function_selector == expected_selector:
score += 20
checks.append({
'name': 'Function Signature',
'passed': True,
'points': 20,
'message': 'Correct donate() function signature'
})
else:
checks.append({
'name': 'Function Signature',
'passed': False,
'points': 0,
'message': f'Expected: {expected_selector}, Got: {function_selector}'
})
details['function_selector'] = function_selector
else:
checks.append({
'name': 'Function Signature',
'passed': False,
'points': 0,
'message': 'No data field or too short'
})
details['function_selector'] = 'N/A'
# Check 4: Value sent (15 points)
actual_value = tx.get('value', 0)
if isinstance(actual_value, str):
actual_value = int(actual_value, 16) if actual_value.startswith('0x') else int(actual_value)
# Allow 1 wei tolerance for rounding
value_correct = abs(actual_value - self.expected_amount) <= 1
if value_correct:
score += 15
checks.append({
'name': 'Value Sent',
'passed': True,
'points': 15,
'message': f'Correct BNB amount sent: {actual_value / 10**18:.6f} BNB'
})
else:
checks.append({
'name': 'Value Sent',
'passed': False,
'points': 0,
'message': f'Expected: {self.expected_amount / 10**18:.6f} BNB, Got: {actual_value / 10**18:.6f} BNB'
})
details['expected_value'] = self.expected_amount / 10**18
details['actual_value'] = actual_value / 10**18
# Check 5: Contract balance increased (15 points)
contract_balance_before = state_before.get('target_balance', 0)
contract_balance_after = state_after.get('target_balance', 0)
balance_increase = contract_balance_after - contract_balance_before
# Allow 1 wei tolerance
balance_correct = abs(balance_increase - self.expected_amount) <= 1
if balance_correct:
score += 15
checks.append({
'name': 'Contract Balance Increased',
'passed': True,
'points': 15,
'message': f'Contract balance increased by {balance_increase / 10**18:.6f} BNB'
})
else:
checks.append({
'name': 'Contract Balance Increased',
'passed': False,
'points': 0,
'message': f'Expected increase: {self.expected_amount / 10**18:.6f} BNB, Actual: {balance_increase / 10**18:.6f} BNB'
})
details['contract_balance_before'] = contract_balance_before / 10**18
details['contract_balance_after'] = contract_balance_after / 10**18
details['balance_increase'] = balance_increase / 10**18
# Determine if all checks passed
all_passed = all(check['passed'] for check in checks)
return {
'score': score,
'max_score': self.max_score,
'passed': all_passed,
'checks': checks,
'details': details
}
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