Static Analyzer for Solidity
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slither/utils/slither_format/format_naming_convention.py

616 lines
42 KiB

import re, sys
from slither.core.expressions.identifier import Identifier
from slither.core.cfg.node import Node
from slither.slithir.operations import NewContract
from slither.slithir.operations import Member
class FormatNamingConvention:
@staticmethod
def format(slither, patches, elements):
for element in elements:
if (element['additional_fields']['target'] == "parameter"):
FormatNamingConvention.create_patch(slither, patches, element['additional_fields']['target'], element['name'], element['type_specific_fields']['parent']['name'], element['type_specific_fields']['parent']['type_specific_fields']['parent']['name'], element['source_mapping']['filename_absolute'],element['source_mapping']['start'],(element['source_mapping']['start']+element['source_mapping']['length']))
elif (element['additional_fields']['target'] == "modifier" or element['additional_fields']['target'] == "function" or element['additional_fields']['target'] == "event" or element['additional_fields']['target'] == "variable" or element['additional_fields']['target'] == "variable_constant" or element['additional_fields']['target'] == "enum" or element['additional_fields']['target'] == "structure"):
FormatNamingConvention.create_patch(slither, patches, element['additional_fields']['target'], element['name'], element['name'], element['type_specific_fields']['parent']['name'], element['source_mapping']['filename_absolute'],element['source_mapping']['start'],(element['source_mapping']['start']+element['source_mapping']['length']))
else:
FormatNamingConvention.create_patch(slither, patches, element['additional_fields']['target'], element['name'], element['name'], element['name'], element['source_mapping']['filename_absolute'],element['source_mapping']['start'],(element['source_mapping']['start']+element['source_mapping']['length']))
@staticmethod
def create_patch(slither, patches, _target, name, function_name, contract_name, in_file, modify_loc_start, modify_loc_end):
if _target == "contract":
FormatNamingConvention.create_patch_contract_definition(slither, patches, name, in_file, modify_loc_start, modify_loc_end)
FormatNamingConvention.create_patch_contract_uses(slither, patches, name, in_file)
elif _target == "structure":
FormatNamingConvention.create_patch_struct_definition(slither, patches, name, contract_name, in_file, modify_loc_start, modify_loc_end)
FormatNamingConvention.create_patch_struct_uses(slither, patches, name, contract_name, in_file)
elif _target == "event":
FormatNamingConvention.create_patch_event_definition(slither, patches, name, contract_name, in_file, modify_loc_start, modify_loc_end)
FormatNamingConvention.create_patch_event_calls(slither, patches, name, contract_name, in_file)
elif _target == "function":
if name != contract_name:
FormatNamingConvention.create_patch_function_definition(slither, patches, name, contract_name, in_file, modify_loc_start, modify_loc_end)
FormatNamingConvention.create_patch_function_calls(slither, patches, name, contract_name, in_file)
elif _target == "parameter":
FormatNamingConvention.create_patch_parameter_declaration(slither, patches, name, function_name, contract_name, in_file, modify_loc_start, modify_loc_end)
FormatNamingConvention.create_patch_parameter_uses(slither, patches, name, function_name, contract_name, in_file)
elif _target == "variable_constant" or _target == "variable":
FormatNamingConvention.create_patch_state_variable_declaration(slither, patches, _target, name, contract_name, in_file, modify_loc_start, modify_loc_end)
FormatNamingConvention.create_patch_state_variable_uses(slither, patches, _target, name, contract_name, in_file)
elif _target == "enum":
FormatNamingConvention.create_patch_enum_definition(slither, patches, name, contract_name, in_file, modify_loc_start, modify_loc_end)
FormatNamingConvention.create_patch_enum_uses(slither, patches, name, contract_name, in_file)
elif _target == "modifier":
FormatNamingConvention.create_patch_modifier_definition(slither, patches, name, contract_name, in_file, modify_loc_start, modify_loc_end)
FormatNamingConvention.create_patch_modifier_uses(slither, patches, name, contract_name, in_file)
else:
print("Unknown naming convention! " + _target)
sys.exit(-1)
@staticmethod
def create_patch_contract_definition(slither, patches, name, in_file, modify_loc_start, modify_loc_end):
for contract in slither.contracts:
if contract.name == name:
in_file_str = slither.source_code[in_file]
old_str_of_interest = in_file_str[modify_loc_start:modify_loc_end]
m = re.match(r'(.*)'+"contract"+r'(.*)'+name, old_str_of_interest)
old_str_of_interest = in_file_str[modify_loc_start:modify_loc_start+m.span()[1]]
(new_str_of_interest, num_repl) = re.subn(r'(.*)'+"contract"+r'(.*)'+name, r'\1'+"contract"+r'\2'+name.capitalize(), old_str_of_interest, 1)
if num_repl != 0:
patch = {
"detector" : "naming-convention (contract definition)",
"start":modify_loc_start,
"end":modify_loc_start+m.span()[1],
"old_string":old_str_of_interest,
"new_string":new_str_of_interest
}
if not patch in patches[in_file]:
patches[in_file].append(patch)
else:
print("Error: Could not find contract?!")
print("old_str_of_interest: " + old_str_of_interest)
print("Contract : " + name)
sys.exit(-1)
@staticmethod
def create_patch_contract_uses(slither, patches, name, in_file):
for contract in slither.contracts:
if contract.name != name:
in_file_str = slither.source_code[in_file]
# Check state variables of contract type
# To-do: Deep-check aggregate types (struct and mapping)
svs = contract.variables
for sv in svs:
if (str(sv.type) == name):
old_str_of_interest = in_file_str[sv.source_mapping['start']:(sv.source_mapping['start']+sv.source_mapping['length'])]
(new_str_of_interest, num_repl) = re.subn(name, name.capitalize(),old_str_of_interest, 1)
patch = {
"detector" : "naming-convention (contract state variable)",
"start" : sv.source_mapping['start'],
"end" : sv.source_mapping['start'] + sv.source_mapping['length'],
"old_string" : old_str_of_interest,
"new_string" : new_str_of_interest
}
if not patch in patches[in_file]:
patches[in_file].append(patch)
# Check function+modifier locals+parameters+returns
# To-do: Deep-check aggregate types (struct and mapping)
fms = contract.functions + contract.modifiers
for fm in fms:
for v in fm.variables:
if (str(v.type) == name):
old_str_of_interest = in_file_str[v.source_mapping['start']:(v.source_mapping['start']+v.source_mapping['length'])]
(new_str_of_interest, num_repl) = re.subn(name, name.capitalize(),old_str_of_interest, 1)
patch = {
"detector" : "naming-convention (contract function variable)",
"start" : v.source_mapping['start'],
"end" : v.source_mapping['start'] + v.source_mapping['length'],
"old_string" : old_str_of_interest,
"new_string" : new_str_of_interest
}
if not patch in patches[in_file]:
patches[in_file].append(patch)
# Check "new" expressions for creation of contract objects
for function in contract.functions:
for node in function.nodes:
for ir in node.irs:
if isinstance(ir, NewContract) and ir.contract_name == name:
old_str_of_interest = in_file_str[node.source_mapping['start']:node.source_mapping['start'] + node.source_mapping['length']]
m = re.search("new"+r'(.*)'+name, old_str_of_interest)
old_str_of_interest = old_str_of_interest[m.span()[0]:]
(new_str_of_interest, num_repl) = re.subn("new"+r'(.*)'+name, "new"+r'\1'+name[0].upper()+name[1:], old_str_of_interest, 1)
if num_repl != 0:
patch = {
"detector" : "naming-convention (contract new object)",
"start" : node.source_mapping['start'] + m.span()[0],
"end" : node.source_mapping['start'] + m.span()[1],
"old_string" : old_str_of_interest,
"new_string" : new_str_of_interest
}
if not patch in patches[in_file]:
patches[in_file].append(patch)
else:
print("Error: Could not find new object?!")
print("old_str_of_interest: " + old_str_of_interest)
print("Contract : " + name)
sys.exit(-1)
else:
# Ignore contract definition
continue
@staticmethod
def create_patch_modifier_definition(slither, patches, name, contract_name, in_file, modify_loc_start, modify_loc_end):
for contract in slither.contracts:
if contract.name == contract_name:
for modifier in contract.modifiers:
if modifier.name == name:
in_file_str = slither.source_code[in_file]
old_str_of_interest = in_file_str[modify_loc_start:modify_loc_end]
m = re.match(r'(.*)'+"modifier"+r'(.*)'+name, old_str_of_interest)
old_str_of_interest = in_file_str[modify_loc_start:modify_loc_start+m.span()[1]]
(new_str_of_interest, num_repl) = re.subn(r'(.*)'+"modifier"+r'(.*)'+name, r'\1'+"modifier"+r'\2'+name[0].lower()+name[1:], old_str_of_interest, 1)
if num_repl != 0:
patch = {
"detector" : "naming-convention (modifier definition)",
"start" : modify_loc_start,
"end" : modify_loc_start+m.span()[1],
"old_string" : old_str_of_interest,
"new_string" : new_str_of_interest
}
if not patch in patches[in_file]:
patches[in_file].append(patch)
else:
print("Error: Could not find modifier?!")
print("old_str_of_interest: " + old_str_of_interest)
print("Modifier: " + name + " in Contract : " + contract_name)
sys.exit(-1)
@staticmethod
def create_patch_modifier_uses(slither, patches, name, contract_name, in_file):
for contract in slither.contracts:
if (contract.name == contract_name):
target_contract = contract
for contract in slither.contracts:
if (contract == target_contract or (contract in target_contract.derived_contracts)):
for function in contract.functions:
for m in function.modifiers:
if (m.name == name):
in_file_str = slither.source_code[in_file]
old_str_of_interest = in_file_str[int(function.parameters_src.source_mapping['start']):int(function.returns_src.source_mapping['start'])]
(new_str_of_interest, num_repl) = re.subn(name, name[0].lower()+name[1:],old_str_of_interest,1)
if num_repl != 0:
patch = {
"detector" : "naming-convention (modifier uses)",
"start" : int(function.parameters_src.source_mapping['start']),
"end" : int(function.returns_src.source_mapping['start']),
"old_string" : old_str_of_interest,
"new_string" : new_str_of_interest
}
if not patch in patches[in_file]:
patches[in_file].append(patch)
else:
print("Error: Could not find modifier name?!")
print("old_str_of_interest: " + old_str_of_interest)
print("Modifier: " + name + " in Contract : " + contract_name)
sys.exit(-1)
@staticmethod
def create_patch_function_definition(slither, patches, name, contract_name, in_file, modify_loc_start, modify_loc_end):
for contract in slither.contracts:
if contract.name == contract_name:
for function in contract.functions:
if function.name == name:
in_file_str = slither.source_code[in_file]
old_str_of_interest = in_file_str[modify_loc_start:modify_loc_end]
m = re.match(r'(.*)'+"function"+r'(.*)'+name, old_str_of_interest)
old_str_of_interest = in_file_str[modify_loc_start:modify_loc_start+m.span()[1]]
(new_str_of_interest, num_repl) = re.subn(r'(.*)'+"function"+r'(.*)'+name, r'\1'+"function"+r'\2'+name[0].lower()+name[1:], old_str_of_interest, 1)
if num_repl != 0:
patch = {
"detector" : "naming-convention (function definition)",
"start" : modify_loc_start,
"end" : modify_loc_start+m.span()[1],
"old_string" : old_str_of_interest,
"new_string" : new_str_of_interest
}
if not patch in patches[in_file]:
patches[in_file].append(patch)
else:
print("Error: Could not find function?!")
print("old_str_of_interest: " + old_str_of_interest)
print("Function: " + name + " in Contract : " + contract_name)
sys.exit(-1)
@staticmethod
def create_patch_function_calls(slither, patches, name, contract_name, in_file):
for contract in slither.contracts:
for function in contract.functions:
for node in function.nodes:
for high_level_call in node.high_level_calls:
if (high_level_call[0].name == contract_name and high_level_call[1].name == name):
for external_call in node.external_calls_as_expressions:
called_function = str(external_call.called).split('.')[-1]
if called_function == high_level_call[1].name:
in_file_str = slither.source_code[in_file]
old_str_of_interest = in_file_str[int(external_call.source_mapping['start']):int(external_call.source_mapping['start'])+int(external_call.source_mapping['length'])]
called_function_name = old_str_of_interest.split('.')[-1]
fixed_function_name = called_function_name[0].lower() + called_function_name[1:]
new_string = '.'.join(old_str_of_interest.split('.')[:-1]) + '.' + fixed_function_name
patch = {
"detector" : "naming-convention (function calls)",
"start" : external_call.source_mapping['start'],
"end" : int(external_call.source_mapping['start']) + int(external_call.source_mapping['length']),
"old_string" : old_str_of_interest,
"new_string" : new_string
}
if not patch in patches[in_file]:
patches[in_file].append(patch)
for internal_call in node.internal_calls_as_expressions:
if (str(internal_call.called) == name):
in_file_str = slither.source_code[in_file]
old_str_of_interest = in_file_str[int(internal_call.source_mapping['start']):int(internal_call.source_mapping['start'])+int(internal_call.source_mapping['length'])]
patch = {
"detector" : "naming-convention (function calls)",
"start" : internal_call.source_mapping['start'],
"end" : int(internal_call.source_mapping['start']) + int(internal_call.source_mapping['length']),
"old_string" : old_str_of_interest,
"new_string" : old_str_of_interest[0].lower()+old_str_of_interest[1:]
}
if not patch in patches[in_file]:
patches[in_file].append(patch)
@staticmethod
def create_patch_event_definition(slither, patches, name, contract_name, in_file, modify_loc_start, modify_loc_end):
for contract in slither.contracts:
if contract.name == contract_name:
for event in contract.events:
if event.name == name:
event_name = name.split('(')[0]
in_file_str = slither.source_code[in_file]
old_str_of_interest = in_file_str[modify_loc_start:modify_loc_end]
(new_str_of_interest, num_repl) = re.subn(r'(.*)'+"event"+r'(.*)'+event_name, r'\1'+"event"+r'\2'+event_name[0].capitalize()+event_name[1:], old_str_of_interest, 1)
if num_repl != 0:
patch = {
"detector" : "naming-convention (event definition)",
"start" : modify_loc_start,
"end" : modify_loc_end,
"old_string" : old_str_of_interest,
"new_string" : new_str_of_interest
}
if not patch in patches[in_file]:
patches[in_file].append(patch)
else:
print("Error: Could not find event?!")
print("old_str_of_interest: " + old_str_of_interest)
print("Event: " + name + " in Contract : " + contract_name)
sys.exit(-1)
@staticmethod
def create_patch_event_calls(slither, patches, name, contract_name, in_file):
event_name = name.split('(')[0]
for contract in slither.contracts:
if (contract.name == contract_name):
target_contract = contract
for contract in slither.contracts:
if (contract == target_contract or (contract in target_contract.derived_contracts)):
for function in contract.functions:
for node in function.nodes:
for call in node.internal_calls_as_expressions:
if (str(call.called) == event_name):
in_file_str = slither.source_code[in_file]
old_str_of_interest = in_file_str[int(call.source_mapping['start']):int(call.source_mapping['start'])+int(call.source_mapping['length'])]
patch = {
"detector" : "naming-convention (event calls)",
"start" : call.source_mapping['start'],
"end" : int(call.source_mapping['start']) + int(call.source_mapping['length']),
"old_string" : old_str_of_interest,
"new_string" : old_str_of_interest[0].capitalize()+old_str_of_interest[1:]
}
if not patch in patches[in_file]:
patches[in_file].append(patch)
@staticmethod
def create_patch_parameter_declaration(slither, patches, name, function_name, contract_name, in_file, modify_loc_start, modify_loc_end):
for contract in slither.contracts:
if contract.name == contract_name:
for function in contract.functions:
if function.name == function_name:
in_file_str = slither.source_code[in_file]
old_str_of_interest = in_file_str[modify_loc_start:modify_loc_end]
if(name[0] == '_'):
(new_str_of_interest, num_repl) = re.subn(r'(.*)'+name+r'(.*)', r'\1'+name[0]+name[1].upper()+name[2:]+r'\2', old_str_of_interest, 1)
else:
(new_str_of_interest, num_repl) = re.subn(r'(.*)'+name+r'(.*)', r'\1'+'_'+name[0].upper()+name[1:]+r'\2', old_str_of_interest, 1)
if num_repl != 0:
patch = {
"detector" : "naming-convention (parameter declaration)",
"start" : modify_loc_start,
"end" : modify_loc_end,
"old_string" : old_str_of_interest,
"new_string" : new_str_of_interest
}
if not patch in patches[in_file]:
patches[in_file].append(patch)
else:
print("Error: Could not find parameter declaration?!")
print("old_str_of_interest: " + old_str_of_interest)
print("Parameter: " + name + " of Function: " + function_name + " in Contract : " + contract_name)
sys.exit(-1)
@staticmethod
def create_patch_parameter_uses(slither, patches, name, function_name, contract_name, in_file):
for contract in slither.contracts:
if (contract.name == contract_name):
for function in contract.functions:
if (function.name == function_name):
in_file_str = slither.source_code[in_file]
for node in function.nodes:
vars = node._expression_vars_written + node._expression_vars_read
for v in vars:
if isinstance(v, Identifier) and str(v) == name and [str(lv) for lv in (node._local_vars_read+node._local_vars_written) if str(lv) == name]:
modify_loc_start = int(v.source_mapping['start'])
modify_loc_end = int(v.source_mapping['start']) + int(v.source_mapping['length'])
old_str_of_interest = in_file_str[modify_loc_start:modify_loc_end]
if(name[0] == '_'):
(new_str_of_interest, num_repl) = re.subn(r'(.*)'+name+r'(.*)', r'\1'+name[0]+name[1].upper()+name[2:]+r'\2', old_str_of_interest, 1)
else:
(new_str_of_interest, num_repl) = re.subn(r'(.*)'+name+r'(.*)', r'\1'+'_'+name[0].upper()+name[1:]+r'\2', old_str_of_interest, 1)
if num_repl != 0:
patch = {
"detector" : "naming-convention (parameter uses)",
"start" : modify_loc_start,
"end" : modify_loc_end,
"old_string" : old_str_of_interest,
"new_string" : new_str_of_interest
}
if not patch in patches[in_file]:
patches[in_file].append(patch)
else:
print("Error: Could not find parameter use?!")
print("old_str_of_interest: " + old_str_of_interest)
print("Parameter: " + name + " of Function: " + function_name + " in Contract : " + contract_name)
# Process function parameters passed to modifiers
for modifier in function._expression_modifiers:
for arg in modifier.arguments:
if str(arg) == name:
old_str_of_interest = in_file_str[modifier.source_mapping['start']:modifier.source_mapping['start']+modifier.source_mapping['length']]
old_str_of_interest_beyond_modifier_name = old_str_of_interest.split('(')[1]
if(name[0] == '_'):
(new_str_of_interest, num_repl) = re.subn(r'(.*)'+name+r'(.*)', r'\1'+name[0]+name[1].upper()+name[2:]+r'\2', old_str_of_interest_beyond_modifier_name, 1)
else:
(new_str_of_interest, num_repl) = re.subn(r'(.*)'+name+r'(.*)', r'\1'+'_'+name[0].upper()+name[1:]+r'\2', old_str_of_interest_beyond_modifier_name, 1)
if num_repl != 0:
patch = {
"detector" : "naming-convention (parameter uses)",
"start" : modifier.source_mapping['start'] + len(old_str_of_interest.split('(')[0]) + 1,
"end" : modifier.source_mapping['start'] + modifier.source_mapping['length'],
"old_string" : old_str_of_interest_beyond_modifier_name,
"new_string" : new_str_of_interest
}
if not patch in patches[in_file]:
patches[in_file].append(patch)
else:
print("Error: Could not find parameter use in modifier?!")
print("old_str_of_interest: " + old_str_of_interest)
print("Parameter: " + name + " of Function: " + function_name + " in Contract : " + contract_name)
sys.exit(-1)
@staticmethod
def create_patch_state_variable_declaration(slither, patches, _target, name, contract_name, in_file, modify_loc_start, modify_loc_end):
for contract in slither.contracts:
if (contract.name == contract_name):
for var in contract.state_variables:
if (var.name == name):
in_file_str = slither.source_code[in_file]
old_str_of_interest = in_file_str[modify_loc_start:modify_loc_end]
m = re.search(name, old_str_of_interest)
if (_target == "variable_constant"):
new_string = old_str_of_interest[m.span()[0]:m.span()[1]].upper()
else:
new_string = old_str_of_interest[m.span()[0]:m.span()[1]]
new_string = new_string[0].lower()+new_string[1:]
patch = {
"detector" : "naming-convention (state variable declaration)",
"start" : modify_loc_start+m.span()[0],
"end" : modify_loc_start+m.span()[1],
"old_string" : old_str_of_interest[m.span()[0]:m.span()[1]],
"new_string" : new_string
}
if not patch in patches[in_file]:
patches[in_file].append(patch)
@staticmethod
def create_patch_state_variable_uses(slither, patches, _target, name, contract_name, in_file):
# To-do: Check cross-contract state variable uses
for contract in slither.contracts:
if (contract.name == contract_name):
target_contract = contract
for contract in slither.contracts:
if (contract == target_contract or (contract in target_contract.derived_contracts)):
fms = contract.functions + contract.modifiers
for fm in fms:
for node in fm.nodes:
vars = node._expression_vars_written + node._expression_vars_read
for v in vars:
if isinstance(v, Identifier) and str(v) == name and [str(sv) for sv in (node._state_vars_read+node._state_vars_written) if str(sv) == name]:
modify_loc_start = int(v.source_mapping['start'])
modify_loc_end = int(v.source_mapping['start']) + int(v.source_mapping['length'])
in_file_str = slither.source_code[in_file]
old_str_of_interest = in_file_str[modify_loc_start:modify_loc_end]
if (_target == "variable_constant"):
new_str_of_interest = old_str_of_interest.upper()
else:
new_str_of_interest = old_str_of_interest
new_str_of_interest = new_str_of_interest[0].lower()+new_str_of_interest[1:]
patch = {
"detector" : "naming-convention (state variable uses)",
"start" : modify_loc_start,
"end" : modify_loc_end,
"old_string" : old_str_of_interest,
"new_string" : new_str_of_interest
}
if not patch in patches[in_file]:
patches[in_file].append(patch)
@staticmethod
def create_patch_enum_definition(slither, patches, name, contract_name, in_file, modify_loc_start, modify_loc_end):
for contract in slither.contracts:
if (contract.name == contract_name):
for enum in contract.enums:
if (enum.name == name):
in_file_str = slither.source_code[in_file]
old_str_of_interest = in_file_str[modify_loc_start:modify_loc_end]
(new_str_of_interest, num_repl) = re.subn(r'(.*)'+"enum"+r'(.*)'+name, r'\1'+"enum"+r'\2'+name[0].capitalize()+name[1:], old_str_of_interest, 1)
if num_repl != 0:
patch = {
"detector" : "naming-convention (enum definition)",
"start" : modify_loc_start,
"end" : modify_loc_end,
"old_string" : old_str_of_interest,
"new_string" : new_str_of_interest
}
if not patch in patches[in_file]:
patches[in_file].append(patch)
else:
print("Error: Could not find enum?!")
print("old_str_of_interest: " + old_str_of_interest)
print("Enum: " + name + " in Contract : " + contract_name)
sys.exit(-1)
@staticmethod
def create_patch_enum_uses(slither, patches, name, contract_name, in_file):
for contract in slither.contracts:
if (contract.name == contract_name):
target_contract = contract
for contract in slither.contracts:
if (contract == target_contract or (contract in target_contract.derived_contracts)):
in_file_str = slither.source_code[in_file]
# Check state variable declarations of enum type
# To-do: Deep-check aggregate types (struct and mapping)
svs = contract.variables
for sv in svs:
if (str(sv.type) == contract_name + "." + name):
old_str_of_interest = in_file_str[sv.source_mapping['start']:(sv.source_mapping['start']+sv.source_mapping['length'])]
(new_str_of_interest, num_repl) = re.subn(name, name.capitalize(),old_str_of_interest, 1)
patch = {
"detector" : "naming-convention (enum use)",
"start" : sv.source_mapping['start'],
"end" : sv.source_mapping['start'] + sv.source_mapping['length'],
"old_string" : old_str_of_interest,
"new_string" : new_str_of_interest
}
if not patch in patches[in_file]:
patches[in_file].append(patch)
# Check function+modifier locals+parameters+returns
# To-do: Deep-check aggregate types (struct and mapping)
fms = contract.functions + contract.modifiers
for fm in fms:
# Enum declarations
for v in fm.variables:
if (str(v.type) == contract_name + "." + name):
old_str_of_interest = in_file_str[v.source_mapping['start']:(v.source_mapping['start']+v.source_mapping['length'])]
(new_str_of_interest, num_repl) = re.subn(name, name.capitalize(),old_str_of_interest, 1)
patch = {
"detector" : "naming-convention (enum use)",
"start" : v.source_mapping['start'],
"end" : v.source_mapping['start'] + v.source_mapping['length'],
"old_string" : old_str_of_interest,
"new_string" : new_str_of_interest
}
if not patch in patches[in_file]:
patches[in_file].append(patch)
# Capture enum uses such as "num = numbers.ONE;"
for function in contract.functions:
for node in function.nodes:
for ir in node.irs:
if isinstance(ir, Member):
if str(ir.variable_left) == name:
old_str_of_interest = in_file_str[node.source_mapping['start']:(node.source_mapping['start']+node.source_mapping['length'])].split('=')[1]
m = re.search(r'(.*)'+name, old_str_of_interest)
old_str_of_interest = old_str_of_interest[m.span()[0]:]
(new_str_of_interest, num_repl) = re.subn(r'(.*)'+name, r'\1'+name[0].upper()+name[1:], old_str_of_interest, 1)
if num_repl != 0:
patch = {
"detector" : "naming-convention (enum use)",
"start" : node.source_mapping['start'] + len(in_file_str[node.source_mapping['start']:(node.source_mapping['start']+node.source_mapping['length'])].split('=')[0]) + 1 + m.span()[0],
"end" : node.source_mapping['start'] + len(in_file_str[node.source_mapping['star\
t']:(node.source_mapping['start']+node.source_mapping['length'])].split('=')[0]) + 1 + m.span()[0] + len(old_str_of_interest),
"old_string" : old_str_of_interest,
"new_string" : new_str_of_interest
}
if not patch in patches[in_file]:
patches[in_file].append(patch)
else:
print("Error: Could not find new object?!")
print("Enum: " + name + " in Contract : " + contract_name)
sys.exit(-1)
# To-do: Check any other place/way where enum type is used
@staticmethod
def create_patch_struct_definition(slither, patches, name, contract_name, in_file, modify_loc_start, modify_loc_end):
for contract in slither.contracts:
if (contract.name == contract_name):
for struct in contract.structures:
if (struct.name == name):
in_file_str = slither.source_code[in_file]
old_str_of_interest = in_file_str[modify_loc_start:modify_loc_end]
(new_str_of_interest, num_repl) = re.subn(r'(.*)'+"struct"+r'(.*)'+name, r'\1'+"struct"+r'\2'+name[0].capitalize()+name[1:], old_str_of_interest, 1)
if num_repl != 0:
patch = {
"detector" : "naming-convention (struct definition)",
"start" : modify_loc_start,
"end" : modify_loc_end,
"old_string" : old_str_of_interest,
"new_string" : new_str_of_interest
}
if not patch in patches[in_file]:
patches[in_file].append(patch)
else:
print("Error: Could not find struct?!")
print("Struct: " + name + " in Contract : " + contract_name)
sys.exit(-1)
@staticmethod
def create_patch_struct_uses(slither, patches, name, contract_name, in_file):
for contract in slither.contracts:
if (contract.name == contract_name):
target_contract = contract
for contract in slither.contracts:
if (contract == target_contract or (contract in target_contract.derived_contracts)):
in_file_str = slither.source_code[in_file]
# Check state variables of struct type
# To-do: Deep-check aggregate types (struct and mapping)
svs = contract.variables
for sv in svs:
if (str(sv.type) == contract_name + "." + name):
old_str_of_interest = in_file_str[sv.source_mapping['start']:(sv.source_mapping['start']+sv.source_mapping['length'])]
(new_str_of_interest, num_repl) = re.subn(name, name.capitalize(),old_str_of_interest, 1)
patch = {
"detector" : "naming-convention (struct use)",
"start" : sv.source_mapping['start'],
"end" : sv.source_mapping['start'] + sv.source_mapping['length'],
"old_string" : old_str_of_interest,
"new_string" : new_str_of_interest
}
if not patch in patches[in_file]:
patches[in_file].append(patch)
# Check function+modifier locals+parameters+returns
# To-do: Deep-check aggregate types (struct and mapping)
fms = contract.functions + contract.modifiers
for fm in fms:
for v in fm.variables:
if (str(v.type) == contract_name + "." + name):
old_str_of_interest = in_file_str[v.source_mapping['start']:(v.source_mapping['start']+v.source_mapping['length'])]
(new_str_of_interest, num_repl) = re.subn(name, name.capitalize(),old_str_of_interest, 1)
patch = {
"detector" : "naming-convention (struct use)",
"start" : v.source_mapping['start'],
"end" : v.source_mapping['start'] + v.source_mapping['length'],
"old_string" : old_str_of_interest,
"new_string" : new_str_of_interest
}
if not patch in patches[in_file]:
patches[in_file].append(patch)
# To-do: Check any other place/way where struct type is used (e.g. typecast)