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Push an image to a remote registry.
def push(self, image_id, service_name, tag=None, namespace=None, url=None, username=None, password=None, repository_prefix=None, **kwargs): """ Push an image to a remote registry. """ auth_config = { 'username': username, 'password': password ...
If username and password are provided, authenticate with the registry. Otherwise, check the config file for existing authentication data.
def login(self, username, password, email, url, config_path): """ If username and password are provided, authenticate with the registry. Otherwise, check the config file for existing authentication data. """ if username and password: try: self.client.l...
Update the config file with the authorization.
def _update_config_file(username, password, email, url, config_path): """Update the config file with the authorization.""" try: # read the existing config config = json.load(open(config_path, "r")) except ValueError: config = dict() if not config.get(...
Retrieve from the config file the current authentication for a given URL, and return the username, password
def _get_registry_auth(registry_url, config_path): """ Retrieve from the config file the current authentication for a given URL, and return the username, password """ username = None password = None try: docker_config = json.load(open(config_path)) ...
Set default values for options.
def initialize_options(self): """Set default values for options.""" # Each user option must be listed here with their default value. self.debug = False self.ignore_errors = False self.distros = '' self.conductor_provider = 'ansible'
Run command.
def run(self): """Run command.""" from container.cli import LOGGING from logging import config from container import core if self.debug: LOGGING['loggers']['container']['level'] = 'DEBUG' config.dictConfig(LOGGING) core.hostcmd_prebake(self.distros, de...
Create a new role with initial files from templates. :param role_name: Name of the role :param role_path: Full path to the role :param project_name: Name of the project, or the base path name. :param description: One line description of the role. :return: None
def create_role_from_templates(role_name=None, role_path=None, project_name=None, description=None): """ Create a new role with initial files from templates. :param role_name: Name of the role :param role_path: Full path to the role :param project_name: Name of the pro...
Given a role definition from a service's list of roles, returns the file path to the role
def resolve_role_to_path(role): """ Given a role definition from a service's list of roles, returns the file path to the role """ loader = DataLoader() try: variable_manager = VariableManager(loader=loader) except TypeError: # If Ansible prior to ansible/ansible@8f97aef1a365 ...
Given a role definition from a service's list of roles, returns a hexdigest based on the role definition, the role contents, and the hexdigest of each dependency
def get_role_fingerprint(role, service_name, config_vars): """ Given a role definition from a service's list of roles, returns a hexdigest based on the role definition, the role contents, and the hexdigest of each dependency """ def hash_file(hash_obj, file_path): blocksize = 64 * 1024 ...
Returns decorator for backoff and retry triggered by predicate. Args: wait_gen: A generator yielding successive wait times in seconds. predicate: A function which when called on the return value of the target function will trigger backoff when considered truthily...
def on_predicate(wait_gen, predicate=operator.not_, max_tries=None, max_time=None, jitter=full_jitter, on_success=None, on_backoff=None, on_giveup=None, logger='backoff', ...
Returns decorator for backoff and retry triggered by exception. Args: wait_gen: A generator yielding successive wait times in seconds. exception: An exception type (or tuple of types) which triggers backoff. max_tries: The maximum number of attempts to make before gi...
def on_exception(wait_gen, exception, max_tries=None, max_time=None, jitter=full_jitter, giveup=lambda e: False, on_success=None, on_backoff=None, on_giveup=None, logg...
Generator for exponential decay. Args: base: The mathematical base of the exponentiation operation factor: Factor to multiply the exponentation by. max_value: The maximum value to yield. Once the value in the true exponential sequence exceeds this, the value of max...
def expo(base=2, factor=1, max_value=None): """Generator for exponential decay. Args: base: The mathematical base of the exponentiation operation factor: Factor to multiply the exponentation by. max_value: The maximum value to yield. Once the value in the true exponential s...
Generator for fibonaccial decay. Args: max_value: The maximum value to yield. Once the value in the true fibonacci sequence exceeds this, the value of max_value will forever after be yielded.
def fibo(max_value=None): """Generator for fibonaccial decay. Args: max_value: The maximum value to yield. Once the value in the true fibonacci sequence exceeds this, the value of max_value will forever after be yielded. """ a = 1 b = 1 while True: if m...
Generator for constant intervals. Args: interval: A constant value to yield or an iterable of such values.
def constant(interval=1): """Generator for constant intervals. Args: interval: A constant value to yield or an iterable of such values. """ try: itr = iter(interval) except TypeError: itr = itertools.repeat(interval) for val in itr: yield val
Check if the node reads tx.origin and doesn't read msg.sender Avoid the FP due to (msg.sender == tx.origin) Returns: (bool)
def _contains_incorrect_tx_origin_use(node): """ Check if the node reads tx.origin and doesn't read msg.sender Avoid the FP due to (msg.sender == tx.origin) Returns: (bool) """ solidity_var_read = node.solidity_variables_read if solidity_var_...
Detect incorrect ERC20 interface Returns: list(str) : list of incorrect function signatures
def detect_incorrect_erc20_interface(contract): """ Detect incorrect ERC20 interface Returns: list(str) : list of incorrect function signatures """ functions = [f for f in contract.functions if f.contract == contract and \ IncorrectERC20InterfaceDetectio...
Detect incorrect erc20 interface Returns: dict: [contrat name] = set(str) events
def _detect(self): """ Detect incorrect erc20 interface Returns: dict: [contrat name] = set(str) events """ results = [] for c in self.contracts: functions = IncorrectERC20InterfaceDetection.detect_incorrect_erc20_interface(c) if functions: ...
Detects if functions, access modifiers, events, state variables, and local variables are named after reserved keywords. Any such definitions are returned in a list. Returns: list of tuple: (type, contract name, definition)
def detect_shadowing_definitions(self, contract): """ Detects if functions, access modifiers, events, state variables, and local variables are named after reserved keywords. Any such definitions are returned in a list. Returns: list of tuple: (type, contract name, definition)""" ...
Detect shadowing local variables Recursively visit the calls Returns: list: {'vuln', 'filename,'contract','func', 'shadow'}
def _detect(self): """ Detect shadowing local variables Recursively visit the calls Returns: list: {'vuln', 'filename,'contract','func', 'shadow'} """ results = [] for contract in self.contracts: shadows = self.detect_shadowing_definitions(contr...
:param detector_class: Class inheriting from `AbstractDetector`.
def register_detector(self, detector_class): """ :param detector_class: Class inheriting from `AbstractDetector`. """ self._check_common_things('detector', detector_class, AbstractDetector, self._detectors) instance = detector_class(self, logger_detector) self._detectors...
:param printer_class: Class inheriting from `AbstractPrinter`.
def register_printer(self, printer_class): """ :param printer_class: Class inheriting from `AbstractPrinter`. """ self._check_common_things('printer', printer_class, AbstractPrinter, self._printers) instance = printer_class(self, logger_printer) self._printers.append(ins...
:return: List of registered detectors results.
def run_detectors(self): """ :return: List of registered detectors results. """ self.load_previous_results() results = [d.detect() for d in self._detectors] self.write_results_to_hide() return results
Detect state variables that could be const
def _detect(self): """ Detect state variables that could be const """ results = [] all_info = '' all_variables = [c.state_variables for c in self.slither.contracts] all_variables = set([item for sublist in all_variables for item in sublist]) all_non_constant_elem...
_filename is not used Args: _filename(string)
def output(self, _filename): """ _filename is not used Args: _filename(string) """ for contract in self.slither.contracts_derived: txt = "\nContract %s"%contract.name table = PrettyTable(["Function", ...
Detect if the function is suicidal Detect the public functions calling suicide/selfdestruct without protection Returns: (bool): True if the function is suicidal
def detect_suicidal_func(func): """ Detect if the function is suicidal Detect the public functions calling suicide/selfdestruct without protection Returns: (bool): True if the function is suicidal """ if func.is_constructor: return False if func...
Detect the suicidal functions
def _detect(self): """ Detect the suicidal functions """ results = [] for c in self.contracts: functions = self.detect_suicidal(c) for func in functions: txt = "{}.{} ({}) allows anyone to destruct the contract\n" info = txt.format...
Naive implementation of Cooper, Harvey, Kennedy algo See 'A Simple,Fast Dominance Algorithm' Compute strict domniators
def compute_dominators(nodes): ''' Naive implementation of Cooper, Harvey, Kennedy algo See 'A Simple,Fast Dominance Algorithm' Compute strict domniators ''' changed = True for n in nodes: n.dominators = set(nodes) while changed: changed = False fo...
Naive implementation of Cooper, Harvey, Kennedy algo See 'A Simple,Fast Dominance Algorithm' Compute dominance frontier
def compute_dominance_frontier(nodes): ''' Naive implementation of Cooper, Harvey, Kennedy algo See 'A Simple,Fast Dominance Algorithm' Compute dominance frontier ''' for node in nodes: if len(node.fathers) >= 2: for father in node.fathers: runner...
_filename is not used Args: _filename(string)
def output(self, _filename): """ _filename is not used Args: _filename(string) """ for contract in self.slither.contracts_derived: txt = "\nContract %s"%contract.name table = PrettyTable(["Function", ...
Return the nodes where the return value of a call is unused Args: f (Function) Returns: list(Node)
def detect_unused_return_values(self, f): """ Return the nodes where the return value of a call is unused Args: f (Function) Returns: list(Node) """ values_returned = [] nodes_origin = {} for n in f.nodes: for ir in ...
Detect high level calls which return a value that are never used
def _detect(self): """ Detect high level calls which return a value that are never used """ results = [] for c in self.slither.contracts: for f in c.functions + c.modifiers: if f.contract != c: continue unused_return = self....
Check if the code is complex Heuristic, the code is complex if: - One function has a cyclomatic complexity > 7 Args: contract
def is_complex_code(self, contract): """ Check if the code is complex Heuristic, the code is complex if: - One function has a cyclomatic complexity > 7 Args: contract """ is_complex = self._is_complex_code(contract) result = r...
_filename is not used Args: _filename(string)
def output(self, _filename): """ _filename is not used Args: _filename(string) """ txt = "Analyze of {}\n".format(self.slither.filename) txt += self.get_detectors_result() for contract in self.slither.contracts_derived: txt += "\nC...
Obtain a string that describes variable shadowing for the given variable. None if no shadowing exists. :param var: The variable to collect shadowing information for. :param contract: The contract in which this variable is being analyzed. :return: Returns a string describing variable shadowing fo...
def _get_indirect_shadowing_information(contract): """ Obtain a string that describes variable shadowing for the given variable. None if no shadowing exists. :param var: The variable to collect shadowing information for. :param contract: The contract in which this variable is being analy...
Build summary using HTML
def _summary(self, contract): """ Build summary using HTML """ ret = '' # Add arrows (number them if there is more than one path so we know order of declaration for inheritance). if len(contract.immediate_inheritance) == 1: ret += '%s -> %s;\n' % (contrac...
Output the graph in filename Args: filename(string)
def output(self, filename): """ Output the graph in filename Args: filename(string) """ if filename == '': filename = 'contracts.dot' if not filename.endswith('.dot'): filename += ".dot" info = 'Inheritance Graph: ' ...
_filename is not used Args: _filename(string)
def output(self, _filename): """ _filename is not used Args: _filename(string) """ txt = "" for c in self.contracts: (name, _inheritance, _var, func_summaries, _modif_summaries) = c.get_summary() txt += blue("\n+ Contract %...
Return the size in bits Return None if the size is not known Returns: int
def size(self): ''' Return the size in bits Return None if the size is not known Returns: int ''' t = self._type if t.startswith('uint'): return int(t[len('uint'):]) if t.startswith('int'): return int(t[len('int'...
Detects if local variables in a given function/modifier are named after built-in symbols. Any such items are returned in a list. Returns: list of tuple: (type, definition, local variable parent)
def detect_builtin_shadowing_locals(self, function_or_modifier): """ Detects if local variables in a given function/modifier are named after built-in symbols. Any such items are returned in a list. Returns: list of tuple: (type, definition, local variable parent)""" res...
Detects if functions, access modifiers, events, state variables, or local variables are named after built-in symbols. Any such definitions are returned in a list. Returns: list of tuple: (type, definition, [local variable parent])
def detect_builtin_shadowing_definitions(self, contract): """ Detects if functions, access modifiers, events, state variables, or local variables are named after built-in symbols. Any such definitions are returned in a list. Returns: list of tuple: (type, definition, [local vari...
Detect shadowing of built-in symbols Recursively visit the calls Returns: list: {'vuln', 'filename,'contract','func', 'shadow'}
def _detect(self): """ Detect shadowing of built-in symbols Recursively visit the calls Returns: list: {'vuln', 'filename,'contract','func', 'shadow'} """ results = [] for contract in self.contracts: shadows = self.detect_builtin_shadowing_defin...
_filename is not used Args: _filename(string)
def output(self, _filename): """ _filename is not used Args: _filename(string) """ txt = '' for contract in self.slither.contracts_derived: txt += '\n{}:\n'.format(contract.name) table = PrettyTable(['Name', 'ID']) ...
_filename is not used Args: _filename(string)
def output(self, _filename): """ _filename is not used Args: _filename(string) """ for c in self.contracts: (name, inheritance, var, func_summaries, modif_summaries) = c.get_summary() txt = "\nContract %s"%name txt += '...
Return the function id of the given signature Args: sig (str) Return: (int)
def get_function_id(sig): '''' Return the function id of the given signature Args: sig (str) Return: (int) ''' s = sha3.keccak_256() s.update(sig.encode('utf-8')) return int("0x" + s.hexdigest()[:8], 16)
Output the graph in filename Args: filename(string)
def output(self, filename): """ Output the graph in filename Args: filename(string) """ if not filename.endswith('.dot'): filename += '.dot' if filename == ".dot": filename = "all_contracts.dot" with open(filename,...
_filename is not used Args: _filename(string)
def output(self, _filename): """ _filename is not used Args: _filename(string) """ txt = "" for contract in self.contracts: print('Contract {}'.format(contract.name)) for function in contract.functions: if f...
Detects and obtains functions which are indirectly shadowed via multiple inheritance by C3 linearization properties, despite not directly inheriting from each other. :param contract: The contract to check for potential C3 linearization shadowing within. :return: A list of list of tuples: (contract, functio...
def detect_c3_function_shadowing(contract): """ Detects and obtains functions which are indirectly shadowed via multiple inheritance by C3 linearization properties, despite not directly inheriting from each other. :param contract: The contract to check for potential C3 linearization shadowing within. ...
Detects and obtains functions which are shadowed immediately by the provided ancestor contract. :param contract: The ancestor contract which we check for function shadowing within. :return: A list of tuples (overshadowing_function, overshadowed_immediate_base_contract, overshadowed_function) -overshadowing_...
def detect_direct_function_shadowing(contract): """ Detects and obtains functions which are shadowed immediately by the provided ancestor contract. :param contract: The ancestor contract which we check for function shadowing within. :return: A list of tuples (overshadowing_function, overshadowed_immedia...
Detects all overshadowing and overshadowed functions in the provided contracts. :param contracts: The contracts to detect shadowing within. :param direct_shadowing: Include results from direct inheritance/inheritance ancestry. :param indirect_shadowing: Include results from indirect inheritance collisions a...
def detect_function_shadowing(contracts, direct_shadowing=True, indirect_shadowing=True): """ Detects all overshadowing and overshadowed functions in the provided contracts. :param contracts: The contracts to detect shadowing within. :param direct_shadowing: Include results from direct inheritance/inher...
Detects all overshadowing and overshadowed state variables in the provided contracts. :param contracts: The contracts to detect shadowing within. :return: Returns a set of tuples (overshadowing_contract, overshadowing_state_var, overshadowed_contract, overshadowed_state_var). The contract-variable pair'...
def detect_state_variable_shadowing(contracts): """ Detects all overshadowing and overshadowed state variables in the provided contracts. :param contracts: The contracts to detect shadowing within. :return: Returns a set of tuples (overshadowing_contract, overshadowing_state_var, overshadowed_contract, ...
Detects pragma statements that allow for outdated solc versions. :return: Returns the relevant JSON data for the findings.
def _detect(self): """ Detects pragma statements that allow for outdated solc versions. :return: Returns the relevant JSON data for the findings. """ # Detect all version related pragmas and check if they are disallowed. results = [] pragma = self.slither.pragma_d...
Analyze event variable attributes :param attributes: The event variable attributes to parse. :return: None
def _analyze_variable_attributes(self, attributes): """ Analyze event variable attributes :param attributes: The event variable attributes to parse. :return: None """ # Check for the indexed attribute if 'indexed' in attributes: self._indexed = attrib...
Args: contract (Contract) Returns: list((Function), (list (Node)))
def detect_dangerous_timestamp(self, contract): """ Args: contract (Contract) Returns: list((Function), (list (Node))) """ ret = [] for f in [f for f in contract.functions if f.contract == contract]: nodes = self.timestamp(f) ...
Return true if the variable is located in storage See https://solidity.readthedocs.io/en/v0.4.24/types.html?highlight=storage%20location#data-location Returns: (bool)
def is_storage(self): """ Return true if the variable is located in storage See https://solidity.readthedocs.io/en/v0.4.24/types.html?highlight=storage%20location#data-location Returns: (bool) """ if self.location == 'memory': return False ...
Detect uninitialized state variables Recursively visit the calls Returns: dict: [contract name] = set(state variable uninitialized)
def _detect(self): """ Detect uninitialized state variables Recursively visit the calls Returns: dict: [contract name] = set(state variable uninitialized) """ results = [] for c in self.slither.contracts_derived: ret = self.detect_uninitialized(c)...
Detect shadowing Recursively visit the calls Returns: list: {'vuln', 'filename,'contract','func', 'shadow'}
def _detect(self): """ Detect shadowing Recursively visit the calls Returns: list: {'vuln', 'filename,'contract','func', 'shadow'} """ results = [] for c in self.contracts: shadowing = self.detect_shadowing(c) if shadowing: ...
Return the function signature Returns: (str, list(str)): name, list parameters type
def signature(self): ''' Return the function signature Returns: (str, list(str)): name, list parameters type ''' return self.name, [str(x.type) for x in self.elems]
Returns a list of InternallCall, SolidityCall calls made in a function Returns: (list): List of all InternallCall, SolidityCall
def detect_functions_called(contract): """ Returns a list of InternallCall, SolidityCall calls made in a function Returns: (list): List of all InternallCall, SolidityCall """ result = [] # Obtain all functions reachable by this contract. for func...
Checks if a contract contains a dynamic call either in a direct definition, or through inheritance. Returns: (boolean): True if this contract contains a dynamic call (including through inheritance).
def _contains_internal_dynamic_call(contract): """ Checks if a contract contains a dynamic call either in a direct definition, or through inheritance. Returns: (boolean): True if this contract contains a dynamic call (including through inheritance). """ for func in c...
Obtains the base function definition for the provided function. This could be used to obtain the original definition of a function, if the provided function is an override. Returns: (function): Returns the base-most function of a provided function. (The original definition).
def get_base_most_function(function): """ Obtains the base function definition for the provided function. This could be used to obtain the original definition of a function, if the provided function is an override. Returns: (function): Returns the base-most function of a pro...
Obtains all function definitions given a base-most function. This includes the provided function, plus any overrides of that function. Returns: (list): Returns any the provided function and any overriding functions defined for it.
def get_all_function_definitions(base_most_function): """ Obtains all function definitions given a base-most function. This includes the provided function, plus any overrides of that function. Returns: (list): Returns any the provided function and any overriding functions de...
_filename is not used Args: _filename(string)
def output(self, _filename): """ _filename is not used Args: _filename(string) """ txt = '' for c in self.contracts: txt += "\nContract %s\n"%c.name table = PrettyTable(['Variable', 'Dependencies']) for v in c.s...
Detect the cyclomatic complexity of the contract functions shouldn't be greater than 7
def detect_complex_func(func): """Detect the cyclomatic complexity of the contract functions shouldn't be greater than 7 """ result = [] code_complexity = compute_cyclomatic_complexity(func) if code_complexity > ComplexFunction.MAX_CYCLOMATIC_COMPLEXITY: r...
_filename is not used Args: _filename(string)
def output(self, original_filename): """ _filename is not used Args: _filename(string) """ for contract in self.contracts: for function in contract.functions + contract.modifiers: filename = "{}-{}-{}.dot".format(original_filen...
Detect unused state variables
def _detect(self): """ Detect unused state variables """ results = [] for c in self.slither.contracts_derived: unusedVars = self.detect_unused(c) if unusedVars: info = '' for var in unusedVars: info += "{}.{} ({}...
Detect uninitialized local variables Recursively visit the calls Returns: dict: [contract name] = set(local variable uninitialized)
def _detect(self): """ Detect uninitialized local variables Recursively visit the calls Returns: dict: [contract name] = set(local variable uninitialized) """ results = [] self.results = [] self.visited_all_paths = {} for contract in self.sl...
Detect un-indexed ERC20 event parameters in a given contract. :param contract: The contract to check ERC20 events for un-indexed parameters in. :return: A list of tuple(event, parameter) of parameters which should be indexed.
def detect_erc20_unindexed_event_params(contract): """ Detect un-indexed ERC20 event parameters in a given contract. :param contract: The contract to check ERC20 events for un-indexed parameters in. :return: A list of tuple(event, parameter) of parameters which should be indexed. ...
Detect un-indexed ERC20 event parameters in all contracts.
def _detect(self): """ Detect un-indexed ERC20 event parameters in all contracts. """ results = [] for c in self.contracts: unindexed_params = self.detect_erc20_unindexed_event_params(c) if unindexed_params: info = "{} ({}) does not mark im...
Transform slithIR vars to SSA (TemporaryVariable, ReferenceVariable, TupleVariable)
def transform_slithir_vars_to_ssa(function): """ Transform slithIR vars to SSA (TemporaryVariable, ReferenceVariable, TupleVariable) """ variables = [] for node in function.nodes: for ir in node.irs_ssa: if isinstance(ir, OperationWithLValue) and not ir.lvalue in variables: ...
Add SSA version of the IR Args: function all_state_variables_instances
def add_ssa_ir(function, all_state_variables_instances): ''' Add SSA version of the IR Args: function all_state_variables_instances ''' if not function.is_implemented: return init_definition = dict() for v in function.parameters: if v.name: i...
Args: ir (Operation) local_variables_instances(dict(str -> LocalVariable)) state_variables_instances(dict(str -> StateVariable)) temporary_variables_instances(dict(int -> Variable)) reference_variables_instances(dict(int -> Variable)) Note: temporary and reference can be ind...
def copy_ir(ir, *instances): ''' Args: ir (Operation) local_variables_instances(dict(str -> LocalVariable)) state_variables_instances(dict(str -> StateVariable)) temporary_variables_instances(dict(int -> Variable)) reference_variables_instances(dict(int -> Variable)) ...
Obtains a list of representing this function and any base definitions :param function: The function to obtain all definitions at and beneath. :return: Returns a list composed of the provided function definition and any base definitions.
def all_function_definitions(function): """ Obtains a list of representing this function and any base definitions :param function: The function to obtain all definitions at and beneath. :return: Returns a list composed of the provided function definition and any base definitions. """ return [fun...
Obtains all functions which can lead to any of the target functions being called. :param target_functions: The functions we are interested in reaching. :return: Returns a list of all functions which can reach any of the target_functions.
def find_target_paths(target_functions): """ Obtains all functions which can lead to any of the target functions being called. :param target_functions: The functions we are interested in reaching. :return: Returns a list of all functions which can reach any of the target_functions. """ # Create ...
Detect arbitrary send Args: contract (Contract) Returns: list((Function), (list (Node)))
def detect_arbitrary_send(self, contract): """ Detect arbitrary send Args: contract (Contract) Returns: list((Function), (list (Node))) """ ret = [] for f in [f for f in contract.functions if f.contract == contract]: nodes =...
Resolves a function instance, given a contract name and function. :param contract_name: The name of the contract the function is declared in. :param function_name: The name of the function to resolve. :return: Returns the resolved function, raises an exception otherwise.
def resolve_function(slither, contract_name, function_name): """ Resolves a function instance, given a contract name and function. :param contract_name: The name of the contract the function is declared in. :param function_name: The name of the function to resolve. :return: Returns the resolved func...
Resolves the provided function descriptors. :param functions: A list of tuples (contract_name, function_name) or str (of form "ContractName.FunctionName") to resolve into function objects. :return: Returns a list of resolved functions.
def resolve_functions(slither, functions): """ Resolves the provided function descriptors. :param functions: A list of tuples (contract_name, function_name) or str (of form "ContractName.FunctionName") to resolve into function objects. :return: Returns a list of resolved functions. """ # Cre...
list(Contract): List of contracts that are derived and not inherited.
def contracts_derived(self): """list(Contract): List of contracts that are derived and not inherited.""" inheritance = (x.inheritance for x in self.contracts) inheritance = [item for sublist in inheritance for item in sublist] return [c for c in self._contracts.values() if c not in inher...
Return a contract from a name Args: contract_name (str): name of the contract Returns: Contract
def get_contract_from_name(self, contract_name): """ Return a contract from a name Args: contract_name (str): name of the contract Returns: Contract """ return next((c for c in self.contracts if c.name == contract_name), None)
Export all the functions to dot files
def print_functions(self, d): """ Export all the functions to dot files """ for c in self.contracts: for f in c.functions: f.cfg_to_dot(os.path.join(d, '{}.{}.dot'.format(c.name, f.name)))
Check if the result is valid A result is invalid if: - All its source paths belong to the source path filtered - Or a similar result was reported and saved during a previous run
def valid_result(self, r): ''' Check if the result is valid A result is invalid if: - All its source paths belong to the source path filtered - Or a similar result was reported and saved during a previous run ''' source_mapping_elements = [...
Output the inheritance relation _filename is not used Args: _filename(string)
def output(self, filename): """ Output the inheritance relation _filename is not used Args: _filename(string) """ info = 'Inheritance\n' if not self.contracts: return info += blue('Child_Contract -> ') + green('Im...
Args: variable (Variable) source (Variable) context (Contract|Function) only_unprotected (bool): True only unprotected function are considered Returns: bool
def is_dependent(variable, source, context, only_unprotected=False): ''' Args: variable (Variable) source (Variable) context (Contract|Function) only_unprotected (bool): True only unprotected function are considered Returns: bool ''' assert isinstance(context,...
Args: variable (Variable) taint (Variable) context (Contract|Function) only_unprotected (bool): True only unprotected function are considered Returns: bool
def is_dependent_ssa(variable, source, context, only_unprotected=False): ''' Args: variable (Variable) taint (Variable) context (Contract|Function) only_unprotected (bool): True only unprotected function are considered Returns: bool ''' assert isinstance(conte...
Args: variable context (Contract|Function) only_unprotected (bool): True only unprotected function are considered Returns: bool
def is_tainted(variable, context, only_unprotected=False, ignore_generic_taint=False): ''' Args: variable context (Contract|Function) only_unprotected (bool): True only unprotected function are considered Returns: bool ''' assert isinstance(context, (Contract, Fun...
Args: variable context (Contract|Function) only_unprotected (bool): True only unprotected function are considered Returns: bool
def is_tainted_ssa(variable, context, only_unprotected=False, ignore_generic_taint=False): ''' Args: variable context (Contract|Function) only_unprotected (bool): True only unprotected function are considered Returns: bool ''' assert isinstance(context, (Contract, Fun...
Args: variable context (Contract|Function) only_unprotected (bool): True only unprotected function are considered Returns: list(Variable)
def get_dependencies(variable, context, only_unprotected=False): ''' Args: variable context (Contract|Function) only_unprotected (bool): True only unprotected function are considered Returns: list(Variable) ''' assert isinstance(context, (Contract, Function)) asse...
Detect uninitialized storage variables Recursively visit the calls Returns: dict: [contract name] = set(storage variable uninitialized)
def _detect(self): """ Detect uninitialized storage variables Recursively visit the calls Returns: dict: [contract name] = set(storage variable uninitialized) """ results = [] self.results = [] self.visited_all_paths = {} for contract in sel...
Detect if the node contains a call that can be used to re-entrance Consider as valid target: - low level call - high level call Do not consider Send/Transfer as there is not enough gas
def _can_callback(self, irs): """ Detect if the node contains a call that can be used to re-entrance Consider as valid target: - low level call - high level call Do not consider Send/Transfer as there is not enough gas """ ...
Detect if the node can send eth
def _can_send_eth(irs): """ Detect if the node can send eth """ for ir in irs: if isinstance(ir, (HighLevelCall, LowLevelCall, Transfer, Send)): if ir.call_value: return True return False
Check if the node is a condtional node where there is an external call checked Heuristic: - The call is a IF node - It contains a, external call - The condition is the negation (!) This will work only on naive implementation
def _filter_if(self, node): """ Check if the node is a condtional node where there is an external call checked Heuristic: - The call is a IF node - It contains a, external call - The condition is the negation (!) Th...
Explore the CFG and look for re-entrancy Heuristic: There is a re-entrancy if a state variable is written after an external call node.context will contains the external calls executed It contains the calls executed in father nodes if node.context...
def _explore(self, node, visited, skip_father=None): """ Explore the CFG and look for re-entrancy Heuristic: There is a re-entrancy if a state variable is written after an external call node.context will contains the external calls executed ...
Return: Node
def _parse_block(self, block, node): ''' Return: Node ''' assert block[self.get_key()] == 'Block' if self.is_compact_ast: statements = block['statements'] else: statements = block[self.get_children('children')] for statement i...
Can occur on: if(..){ return } else{ return } Iterate until a fix point to remove the ENDIF node creates on the following pattern if(){ return } else if(){ ...
def _remove_alone_endif(self): """ Can occur on: if(..){ return } else{ return } Iterate until a fix point to remove the ENDIF node creates on the following pattern if(){ ...
Check if the node is a IF node Returns: bool: True if the node is a conditional node (IF or IFLOOP)
def contains_if(self, include_loop=True): """ Check if the node is a IF node Returns: bool: True if the node is a conditional node (IF or IFLOOP) """ if include_loop: return self.type in [NodeType.IF, NodeType.IFLOOP] return self.type == NodeTy...
_filename is not used Args: _filename(string)
def output(self, _filename): """ _filename is not used Args: _filename(string) """ for contract in self.contracts: txt = "\nContract %s\n"%contract.name table = PrettyTable(["Function", "State variables written", "Conditions on msg...
Check if the node is a conditional node A conditional node is either a IF or a require/assert or a RETURN bool Returns: bool: True if the node is a conditional node
def is_conditional(self, include_loop=True): """ Check if the node is a conditional node A conditional node is either a IF or a require/assert or a RETURN bool Returns: bool: True if the node is a conditional node """ if self.contains_if(include_loop) ...
Remove the father node. Do nothing if the node is not a father Args: fathers: list of fathers to add
def remove_father(self, father): """ Remove the father node. Do nothing if the node is not a father Args: fathers: list of fathers to add """ self._fathers = [x for x in self._fathers if x.node_id != father.node_id]
Remove the son node. Do nothing if the node is not a son Args: fathers: list of fathers to add
def remove_son(self, son): """ Remove the son node. Do nothing if the node is not a son Args: fathers: list of fathers to add """ self._sons = [x for x in self._sons if x.node_id != son.node_id]
Detects if an expression makes use of any deprecated standards. Returns: list of tuple: (detecting_signature, original_text, recommended_text)
def detect_deprecation_in_expression(self, expression): """ Detects if an expression makes use of any deprecated standards. Returns: list of tuple: (detecting_signature, original_text, recommended_text)""" # Perform analysis on this expression export = ExportValues(expressio...
Detects if a node makes use of any deprecated standards. Returns: list of tuple: (detecting_signature, original_text, recommended_text)
def detect_deprecated_references_in_node(self, node): """ Detects if a node makes use of any deprecated standards. Returns: list of tuple: (detecting_signature, original_text, recommended_text)""" # Define our results list results = [] # If this node has an expressi...