def test_verification_contracts_checksums():
""" Tamper with the contract checksums and see failures in verify_precompiled_checksums() """
manager = ContractSourceManager(contracts_source_path())
manager.checksum_contracts()
manager.verify_precompiled_checksums(contracts_precompiled_path())
assert manager.contracts_checksums
for contract, checksum in manager.contracts_checksums.items():
manager.contracts_checksums[contract] += '2'
with pytest.raises(ContractSourceManagerVerificationError):
manager.verify_precompiled_checksums(contracts_precompiled_path())
manager.contracts_checksums[contract] = None # type: ignore
with pytest.raises(ContractSourceManagerVerificationError):
manager.verify_precompiled_checksums(contracts_precompiled_path())
manager.contracts_checksums[contract] = ''
with pytest.raises(ContractSourceManagerVerificationError):
manager.verify_precompiled_checksums(contracts_precompiled_path())
checksum_fail = list(checksum)
# Replace the first char with a different one
checksum_fail[0] = 'a' if checksum_fail[0] == '2' else '2'
manager.contracts_checksums[contract] = ''.join(checksum_fail)
with pytest.raises(ContractSourceManagerVerificationError):
manager.verify_precompiled_checksums(contracts_precompiled_path())
manager.contracts_checksums[contract] = checksum
manager.verify_precompiled_checksums(contracts_precompiled_path())
def __init__(
self,
web3: Web3,
private_key: str,
gas_limit: int,
gas_price: int = 1,
wait: int = 10,
contracts_version: Optional[str] = None,
):
# pylint: disable=E1101
super(ContractDeployer, self).__init__(web3=web3, contracts_version=contracts_version)
self.wait = wait
self.owner = private_key_to_address(private_key)
self.transaction = {"from": self.owner, "gas": gas_limit}
if gas_price != 0:
self.transaction["gasPrice"] = gas_price * int(units["gwei"])
self.web3.middleware_stack.add(construct_sign_and_send_raw_middleware(private_key))
# Check that the precompiled data matches the source code
# Only for current version, because this is the only one with source code
if self.contracts_version in [None, CONTRACTS_VERSION]:
contract_manager_source = ContractSourceManager(contracts_source_path())
contract_manager_source.checksum_contracts()
contract_manager_source.verify_precompiled_checksums(self.precompiled_path)
else:
LOG.info("Skipped checks against the source code because it is not available.")
def test_verification_overall_checksum():
""" Tamper with the overall checksum and see failures in verify_precompiled_checksums() """
manager = ContractSourceManager(contracts_source_path())
manager.checksum_contracts()
manager.verify_precompiled_checksums(contracts_precompiled_path())
assert manager.overall_checksum
original_checksum = manager.overall_checksum
# We change the source code overall checksum
manager.overall_checksum += '2'
# Now the verification should fail
with pytest.raises(ContractSourceManagerVerificationError):
manager.verify_precompiled_checksums(contracts_precompiled_path())
manager.overall_checksum = None # type: ignore
with pytest.raises(ContractSourceManagerVerificationError):
manager.verify_precompiled_checksums(contracts_precompiled_path())
manager.overall_checksum = ''
with pytest.raises(ContractSourceManagerVerificationError):
manager.verify_precompiled_checksums(contracts_precompiled_path())
checksum_fail = list(original_checksum)
# Replace the first char with a different one
checksum_fail[0] = 'a' if checksum_fail[0] == '2' else '2'
manager.overall_checksum = ''.join(checksum_fail)
with pytest.raises(ContractSourceManagerVerificationError):
manager.verify_precompiled_checksums(contracts_precompiled_path())
manager.overall_checksum = original_checksum
manager.verify_precompiled_checksums(contracts_precompiled_path())
def run(self):
from raiden_contracts.contract_manager import (
contracts_precompiled_path, )
from raiden_contracts.contract_source_manager import (
ContractSourceManager,
contracts_source_path,
)
manager = ContractSourceManager(contracts_source_path())
manager.checksum_contracts()
manager.verify_precompiled_checksums(contracts_precompiled_path())