def transfer(self, to_address, amount):
log_details = {
'node': pex(self.node_address),
'contract': pex(self.address),
'to_address': pex(to_address),
'amount': amount,
}
log.debug('transfer called', **log_details)
startgas = GAS_LIMIT_FOR_TOKEN_CONTRACT_CALL
transaction_hash = self.proxy.transact(
'transfer',
safe_gas_limit(startgas),
to_checksum_address(to_address),
amount,
)
self.client.poll(transaction_hash)
receipt_or_none = check_transaction_threw(self.client, transaction_hash)
if receipt_or_none:
log.critical('transfer failed', **log_details)
raise TransactionThrew('Transfer', receipt_or_none)
# TODO: check Transfer event (issue: #2598)
log.info('transfer successful', **log_details)
def test_filter_end_block_inclusive(deploy_client):
""" A filter includes events from the block given in from_block
until and including end_block. """
contract_proxy = deploy_rpc_test_contract(deploy_client)
# call the create event function twice and wait for confirmation each time
startgas = safe_gas_limit(
contract_proxy.estimate_gas('pending', 'createEvent', 1))
transaction_1 = contract_proxy.transact('createEvent', startgas, 1)
deploy_client.poll(transaction_1)
transaction_2 = contract_proxy.transact('createEvent', startgas, 2)
deploy_client.poll(transaction_2)
result_1 = deploy_client.get_filter_events(contract_proxy.contract_address)
block_number_events = get_list_of_block_numbers(result_1)
block_number_event_1 = block_number_events[0]
block_number_event_2 = block_number_events[1]
# inclusive to_block should return first event
result_2 = deploy_client.get_filter_events(
contract_proxy.contract_address,
to_block=block_number_event_1,
)
assert get_list_of_block_numbers(result_2) == [block_number_event_1]
# this should include the second event
result_3 = deploy_client.get_filter_events(
contract_proxy.contract_address,
to_block=block_number_event_2,
)
assert get_list_of_block_numbers(result_3) == block_number_events
def send_transaction():
check_block = deploy_client.get_checking_block()
startgas = contract_proxy.estimate_gas(check_block, "waste_storage", iterations)
startgas = safe_gas_limit(startgas)
transaction = contract_proxy.transact("waste_storage", startgas, iterations)
deploy_client.poll(transaction)
return deploy_client.get_transaction_receipt(transaction)
def test_duplicated_transaction_same_gas_price_raises(deploy_client):
""" If the same transaction is sent twice a JSON RPC error is raised. """
gas_price = 2000000000
gas_price_strategy = make_fixed_gas_price_strategy(gas_price)
deploy_client.web3.eth.setGasPriceStrategy(gas_price_strategy)
contract_proxy = deploy_rpc_test_contract(deploy_client)
address = contract_proxy.contract_address
assert len(deploy_client.web3.eth.getCode(
to_checksum_address(address))) > 0
second_client = JSONRPCClient(
web3=deploy_client.web3,
privkey=deploy_client.privkey,
)
second_proxy = second_client.new_contract_proxy(
contract_proxy.contract.abi,
contract_proxy.contract_address,
)
check_block = deploy_client.get_checking_block()
startgas = safe_gas_limit(contract_proxy.estimate_gas(check_block, 'ret'))
with pytest.raises(TransactionAlreadyPending):
second_proxy.transact('ret', startgas)
contract_proxy.transact('ret', startgas)
def test_duplicated_transaction_same_gas_price_raises(deploy_client):
""" If the same transaction is sent twice a JSON RPC error is raised. """
gas_price = 2000000000
gas_price_strategy = make_fixed_gas_price_strategy(gas_price)
deploy_client.web3.eth.setGasPriceStrategy(gas_price_strategy)
contract_proxy = deploy_rpc_test_contract(deploy_client)
address = contract_proxy.contract_address
assert len(deploy_client.web3.eth.getCode(to_checksum_address(address))) > 0
second_client = JSONRPCClient(
web3=deploy_client.web3,
privkey=deploy_client.privkey,
)
second_proxy = second_client.new_contract_proxy(
contract_proxy.contract.abi,
contract_proxy.contract_address,
)
startgas = safe_gas_limit(contract_proxy.estimate_gas('pending', 'ret'))
with pytest.raises(TransactionAlreadyPending):
second_proxy.transact('ret', startgas)
contract_proxy.transact('ret', startgas)
def transfer(self, to_address: Address, amount: TokenAmount):
# Note that given_block_identifier is not used here as there
# are no preconditions to check before sending the transaction
log_details = {
"node": pex(self.node_address),
"contract": pex(self.address),
"to_address": pex(to_address),
"amount": amount,
}
log.debug("transfer called", **log_details)
startgas = GAS_LIMIT_FOR_TOKEN_CONTRACT_CALL
transaction_hash = self.proxy.transact("transfer",
safe_gas_limit(startgas),
to_checksum_address(to_address),
amount)
self.client.poll(transaction_hash)
receipt_or_none = check_transaction_threw(self.client,
transaction_hash)
if receipt_or_none:
log.critical("transfer failed", **log_details)
raise TransactionThrew("Transfer", receipt_or_none)
# TODO: check Transfer event (issue: #2598)
log.info("transfer successful", **log_details)
def register_endpoint(self, node_address, endpoint):
if node_address != self.client.address:
raise ValueError("node_address doesnt match this node's address")
log_details = {
'node': pex(self.node_address),
'node_address': pex(node_address),
'endpoint': endpoint,
}
log.debug('registerEndpoint called', **log_details)
transaction_hash = self.proxy.transact(
'registerEndpoint',
safe_gas_limit(GAS_REQUIRED_FOR_ENDPOINT_REGISTER),
endpoint,
)
self.client.poll(transaction_hash)
receipt_or_none = check_transaction_threw(self.client, transaction_hash)
if receipt_or_none:
log.critical('registerEndpoint failed', **log_details)
raise TransactionThrew('Register Endpoint', receipt_or_none)
log.debug('registerEndpoint successful', **log_details)
def test_reusing_nonce_with_lower_gas_raises(
deploy_client: JSONRPCClient) -> None:
""" If a _new_ transaction is sent but with a lower gas the exception
`ReplacementTransactionUnderpriced` is raised.
"""
# Use a _decreasing_ gas price strategy so that the second transactions is
# lower than the first.
deploy_client.web3.eth.setGasPriceStrategy(
make_decreasing_gas_price_strategy(GasPrice(2000000000)))
contract_proxy, _ = deploy_rpc_test_contract(deploy_client, "RpcTest")
address = contract_proxy.contract_address
assert len(deploy_client.web3.eth.getCode(
to_checksum_address(address))) > 0
client_invalid_nonce = JSONRPCClient(web3=deploy_client.web3,
privkey=deploy_client.privkey)
check_block = deploy_client.get_checking_block()
gas_estimate = contract_proxy.estimate_gas(check_block, "ret")
assert gas_estimate, "Gas estimation should not fail here"
startgas = safe_gas_limit(gas_estimate)
contract_proxy.transact("ret", startgas)
# At this point `client_invalid_nonce` has a nonce that is `1` too low,
# since a transaction was sent using `deploy_client` above and these two
# instances share the same underlying private key.
#
# Note that the same function is called in this test but the gas is decreasing.
with pytest.raises(ReplacementTransactionUnderpriced):
client_invalid_nonce.new_contract_proxy(
abi=contract_proxy.contract.abi,
contract_address=contract_proxy.contract_address).transact(
"ret_str", contract_proxy.estimate_gas(check_block, "ret_str"))
def transfer(self, to_address, amount):
log_details = {
'node': pex(self.node_address),
'contract': pex(self.address),
'to_address': pex(to_address),
'amount': amount,
}
log.debug('transfer called', **log_details)
startgas = GAS_LIMIT_FOR_TOKEN_CONTRACT_CALL
transaction_hash = self.proxy.transact(
'transfer',
safe_gas_limit(startgas),
to_checksum_address(to_address),
amount,
)
self.client.poll(transaction_hash)
receipt_or_none = check_transaction_threw(self.client,
transaction_hash)
if receipt_or_none:
log.critical('transfer failed', **log_details)
raise TransactionThrew('Transfer', receipt_or_none)
# TODO: check Transfer event (issue: #2598)
log.info('transfer successful', **log_details)
def test_filter_start_block_inclusive(deploy_client):
""" A filter includes events from the block given in from_block """
contract_proxy, _ = deploy_rpc_test_contract(deploy_client, "RpcTest")
check_block = deploy_client.get_checking_block()
# call the create event function twice and wait for confirmation each time
startgas = safe_gas_limit(contract_proxy.estimate_gas(check_block, "createEvent", 1))
transaction_1 = contract_proxy.transact("createEvent", startgas, 1)
deploy_client.poll(transaction_1)
transaction_2 = contract_proxy.transact("createEvent", startgas, 2)
deploy_client.poll(transaction_2)
result_1 = deploy_client.get_filter_events(contract_proxy.contract_address)
block_number_events = get_list_of_block_numbers(result_1)
block_number_event_1 = block_number_events[0]
block_number_event_2 = block_number_events[1]
# inclusive from_block should return both events
result_2 = deploy_client.get_filter_events(
contract_proxy.contract_address, from_block=block_number_event_1
)
assert get_list_of_block_numbers(result_2) == block_number_events
# a higher from_block must not contain the first event
result_3 = deploy_client.get_filter_events(
contract_proxy.contract_address, from_block=block_number_event_1 + 1
)
assert get_list_of_block_numbers(result_3) == [block_number_event_2]
def register_endpoint(self, node_address, endpoint):
if node_address != self.client.address:
raise ValueError("node_address doesnt match this node's address")
log_details = {
'node': pex(self.node_address),
'node_address': pex(node_address),
'endpoint': endpoint,
}
log.debug('registerEndpoint called', **log_details)
transaction_hash = self.proxy.transact(
'registerEndpoint',
safe_gas_limit(GAS_REQUIRED_FOR_ENDPOINT_REGISTER),
endpoint,
)
self.client.poll(transaction_hash)
receipt_or_none = check_transaction_threw(self.client, transaction_hash)
if receipt_or_none:
log.critical('registerEndpoint failed', **log_details)
raise TransactionThrew('Register Endpoint', receipt_or_none)
log.debug('registerEndpoint successful', **log_details)
def _new_netting_channel(self, partner: typing.Address,
settle_timeout: int):
if self.channel_exists_and_not_settled(self.node_address, partner):
raise DuplicatedChannelError(
'Channel with given partner address already exists')
gas_limit = self.proxy.estimate_gas(
'openChannel',
self.node_address,
partner,
settle_timeout,
)
gas_limit = safe_gas_limit(gas_limit, GAS_REQUIRED_FOR_OPEN_CHANNEL)
transaction_hash = self.proxy.transact(
'openChannel',
gas_limit,
self.node_address,
partner,
settle_timeout,
)
if not transaction_hash:
raise RuntimeError('open channel transaction failed')
self.client.poll(transaction_hash)
if check_transaction_threw(self.client, transaction_hash):
raise DuplicatedChannelError('Duplicated channel')
return transaction_hash
def test_duplicated_transaction_different_gas_price_raises(deploy_client):
""" If the same transaction is sent twice a JSON RPC error is raised. """
gas_price = 2000000000
deploy_client.web3.eth.setGasPriceStrategy(
make_decreasing_gas_price_strategy(gas_price))
contract_proxy = deploy_rpc_test_contract(deploy_client)
address = contract_proxy.contract_address
assert len(deploy_client.web3.eth.getCode(
to_checksum_address(address))) > 0
second_client = JSONRPCClient(
web3=deploy_client.web3,
privkey=deploy_client.privkey,
)
second_proxy = second_client.new_contract_proxy(
contract_proxy.contract.abi,
contract_proxy.contract_address,
)
startgas = safe_gas_limit(contract_proxy.estimate_gas('pending', 'ret'))
with pytest.raises(ReplacementTransactionUnderpriced):
second_proxy.transact('ret', startgas)
contract_proxy.transact('ret', startgas)
def test_resending_mined_transaction_raises(
deploy_client: JSONRPCClient) -> None:
""" If a mined transaction is re-sent the exception `EthereumNonceTooLow` is raised. """
# Use a _fixed_ gas price strategy so that both transactions are identical.
deploy_client.web3.eth.setGasPriceStrategy(
make_fixed_gas_price_strategy(GasPrice(2000000000)))
contract_proxy, _ = deploy_rpc_test_contract(deploy_client, "RpcTest")
address = contract_proxy.contract_address
assert len(deploy_client.web3.eth.getCode(
to_checksum_address(address))) > 0
# Create a new instance of the JSONRPCClient, this will store the current available nonce
client_invalid_nonce = JSONRPCClient(deploy_client.web3,
deploy_client.privkey)
check_block = deploy_client.get_checking_block()
gas_estimate = contract_proxy.estimate_gas(check_block, "ret")
assert gas_estimate, "Gas estimation should not fail here"
startgas = safe_gas_limit(gas_estimate)
txhash = contract_proxy.transact("ret", startgas)
deploy_client.poll(txhash)
# At this point `client_invalid_nonce` has a nonce that is `1` too low,
# since a transaction was sent using `deploy_client` above and these two
# instances share the same underlying private key.
#
# Note that the same function is called in this test.
with pytest.raises(EthereumNonceTooLow):
client_invalid_nonce.new_contract_proxy(
abi=contract_proxy.contract.abi,
contract_address=contract_proxy.contract_address).transact(
"ret", startgas)
def test_filter_end_block_inclusive(deploy_client):
""" A filter includes events from the block given in from_block
until and including end_block. """
contract_proxy = deploy_rpc_test_contract(deploy_client)
# call the create event function twice and wait for confirmation each time
startgas = safe_gas_limit(contract_proxy.estimate_gas('pending', 'createEvent', 1))
transaction_1 = contract_proxy.transact('createEvent', startgas, 1)
deploy_client.poll(transaction_1)
transaction_2 = contract_proxy.transact('createEvent', startgas, 2)
deploy_client.poll(transaction_2)
result_1 = deploy_client.get_filter_events(contract_proxy.contract_address)
block_number_events = get_list_of_block_numbers(result_1)
block_number_event_1 = block_number_events[0]
block_number_event_2 = block_number_events[1]
# inclusive to_block should return first event
result_2 = deploy_client.get_filter_events(
contract_proxy.contract_address,
to_block=block_number_event_1,
)
assert get_list_of_block_numbers(result_2) == [block_number_event_1]
# this should include the second event
result_3 = deploy_client.get_filter_events(
contract_proxy.contract_address,
to_block=block_number_event_2,
)
assert get_list_of_block_numbers(result_3) == block_number_events
def approve(self, allowed_address: Address, allowance: TokenAmount):
""" Aprove `allowed_address` to transfer up to `deposit` amount of token.
Note:
For channel deposit please use the channel proxy, since it does
additional validations.
"""
log_details = {
'node': pex(self.node_address),
'contract': pex(self.address),
'allowed_address': pex(allowed_address),
'allowance': allowance,
}
checking_block = self.client.get_checking_block()
error_prefix = 'Call to approve will fail'
gas_limit = self.proxy.estimate_gas(
checking_block,
'approve',
to_checksum_address(allowed_address),
allowance,
)
if gas_limit:
error_prefix = 'Call to approve failed'
log.debug('approve called', **log_details)
transaction_hash = self.proxy.transact(
'approve',
safe_gas_limit(gas_limit),
to_checksum_address(allowed_address),
allowance,
)
self.client.poll(transaction_hash)
receipt_or_none = check_transaction_threw(self.client,
transaction_hash)
transaction_executed = gas_limit is not None
if not transaction_executed or receipt_or_none:
if transaction_executed:
block = receipt_or_none['blockNumber']
else:
block = checking_block
self.proxy.jsonrpc_client.check_for_insufficient_eth(
transaction_name='approve',
transaction_executed=transaction_executed,
required_gas=GAS_REQUIRED_FOR_APPROVE,
block_identifier=block,
)
msg = self._check_why_approved_failed(allowance, block)
error_msg = f'{error_prefix}. {msg}'
log.critical(error_msg, **log_details)
raise RaidenUnrecoverableError(error_msg)
log.info('approve successful', **log_details)
def unlock(
self,
channel_identifier: typing.ChannelID,
partner: typing.Address,
merkle_tree_leaves: typing.MerkleTreeLeaves,
):
log_details = {
'token_network': pex(self.address),
'node': pex(self.node_address),
'partner': pex(partner),
'merkle_tree_leaves': merkle_tree_leaves,
}
if merkle_tree_leaves is None or not merkle_tree_leaves:
log.info('skipping unlock, tree is empty', **log_details)
return
log.info('unlock called', **log_details)
leaves_packed = b''.join(lock.encoded for lock in merkle_tree_leaves)
gas_limit = self.proxy.estimate_gas(
'unlock',
channel_identifier,
self.node_address,
partner,
leaves_packed,
)
gas_limit = safe_gas_limit(gas_limit, UNLOCK_TX_GAS_LIMIT)
transaction_hash = self.proxy.transact(
'unlock',
gas_limit,
channel_identifier,
self.node_address,
partner,
leaves_packed,
)
self.client.poll(transaction_hash)
receipt_or_none = check_transaction_threw(self.client, transaction_hash)
if receipt_or_none:
channel_settled = self.channel_is_settled(
participant1=self.node_address,
participant2=partner,
channel_identifier=channel_identifier,
)
if channel_settled is False:
log.critical('unlock failed. Channel is not in a settled state', **log_details)
raise RaidenUnrecoverableError(
'Channel is not in a settled state. An unlock cannot be made',
)
log.critical('unlock failed', **log_details)
raise TransactionThrew('Unlock', receipt_or_none)
log.info('unlock successful', **log_details)
def approve(self, allowed_address: Address, allowance: TokenAmount):
""" Aprove `allowed_address` to transfer up to `deposit` amount of token.
Note:
For channel deposit please use the channel proxy, since it does
additional validations.
"""
# Note that given_block_identifier is not used here as there
# are no preconditions to check before sending the transaction
log_details = {
"node": pex(self.node_address),
"contract": pex(self.address),
"allowed_address": pex(allowed_address),
"allowance": allowance,
}
checking_block = self.client.get_checking_block()
error_prefix = "Call to approve will fail"
gas_limit = self.proxy.estimate_gas(
checking_block, "approve", to_checksum_address(allowed_address), allowance
)
if gas_limit:
error_prefix = "Call to approve failed"
log.debug("approve called", **log_details)
transaction_hash = self.proxy.transact(
"approve",
safe_gas_limit(gas_limit),
to_checksum_address(allowed_address),
allowance,
)
self.client.poll(transaction_hash)
receipt_or_none = check_transaction_threw(self.client, transaction_hash)
transaction_executed = gas_limit is not None
if not transaction_executed or receipt_or_none:
if transaction_executed:
block = receipt_or_none["blockNumber"]
else:
block = checking_block
self.proxy.jsonrpc_client.check_for_insufficient_eth(
address=self.node_address,
transaction_name="approve",
transaction_executed=transaction_executed,
required_gas=GAS_REQUIRED_FOR_APPROVE,
block_identifier=block,
)
msg = self._check_why_approved_failed(allowance, block)
error_msg = f"{error_prefix}. {msg}"
log.critical(error_msg, **log_details)
raise RaidenUnrecoverableError(error_msg)
log.info("approve successful", **log_details)
def approve(self, allowed_address: Address, allowance: TokenAmount):
""" Aprove `allowed_address` to transfer up to `deposit` amount of token.
Note:
For channel deposit please use the channel proxy, since it does
additional validations.
"""
log_details = {
'node': pex(self.node_address),
'contract': pex(self.address),
'allowed_address': pex(allowed_address),
'allowance': allowance,
}
error_prefix = 'Call to approve will fail'
gas_limit = self.proxy.estimate_gas(
'pending',
'approve',
to_checksum_address(allowed_address),
allowance,
)
if gas_limit:
error_prefix = 'Call to approve failed'
log.debug('approve called', **log_details)
transaction_hash = self.proxy.transact(
'approve',
safe_gas_limit(gas_limit),
to_checksum_address(allowed_address),
allowance,
)
self.client.poll(transaction_hash)
receipt_or_none = check_transaction_threw(self.client, transaction_hash)
transaction_executed = gas_limit is not None
if not transaction_executed or receipt_or_none:
if transaction_executed:
block = receipt_or_none['blockNumber']
else:
block = 'pending'
self.proxy.jsonrpc_client.check_for_insufficient_eth(
transaction_name='approve',
transaction_executed=transaction_executed,
required_gas=GAS_REQUIRED_FOR_APPROVE,
block_identifier=block,
)
msg = self._check_why_approved_failed(allowance, block)
error_msg = f'{error_prefix}. {msg}'
log.critical(error_msg, **log_details)
raise RaidenUnrecoverableError(error_msg)
log.info('approve successful', **log_details)
def test_transact_opcode_oog(deploy_client):
""" The receipt status field of a transaction that did NOT throw is 0x0. """
contract_proxy = deploy_rpc_test_contract(deploy_client)
address = contract_proxy.contract_address
assert len(deploy_client.web3.eth.getCode(to_checksum_address(address))) > 0
# divide the estimate by 2 to run into out-of-gas
startgas = safe_gas_limit(contract_proxy.estimate_gas('pending', 'loop', 1000)) // 2
transaction = contract_proxy.transact('loop', startgas, 1000)
deploy_client.poll(transaction)
assert check_transaction_threw(deploy_client, transaction), 'must not be empty'
def test_transact_throws_opcode(deploy_client):
""" The receipt status field of a transaction that threw is 0x0 """
contract_proxy = deploy_rpc_test_contract(deploy_client)
address = contract_proxy.contract_address
assert len(deploy_client.web3.eth.getCode(to_checksum_address(address))) > 0
# the gas estimation returns 0 here, so hardcode a value
startgas = safe_gas_limit(22_000)
transaction = contract_proxy.transact('fail', startgas)
deploy_client.poll(transaction)
assert check_transaction_threw(deploy_client, transaction), 'must not be empty'
def _register_secret_batch(self, secrets):
gas_limit = self.proxy.estimate_gas('registerSecretBatch', secrets)
gas_limit = safe_gas_limit(
gas_limit,
len(secrets) * GAS_REQUIRED_PER_SECRET_IN_BATCH)
transaction_hash = self.proxy.transact('registerSecretBatch',
gas_limit, secrets)
self.client.poll(transaction_hash)
receipt_or_none = check_transaction_threw(self.client,
transaction_hash)
if receipt_or_none:
raise TransactionThrew('registerSecretBatch', receipt_or_none)
return transaction_hash
def test_endpointregistry_gas(endpoint_discovery_services):
""" GAS_REQUIRED_FOR_ENDPOINT_REGISTER value must be equal to the gas required to call
registerEndpoint.
"""
contract_discovery = endpoint_discovery_services[0]
discovery_proxy = contract_discovery.discovery_proxy
endpoint = host_port_to_endpoint("127.0.0.1", 44444)
transaction_hash = discovery_proxy.proxy.transact(
"registerEndpoint", safe_gas_limit(GAS_REQUIRED_FOR_ENDPOINT_REGISTER),
endpoint)
discovery_proxy.client.poll(transaction_hash)
receipt = discovery_proxy.client.get_transaction_receipt(transaction_hash)
msg = "the transaction failed, check if it was because of the gas being too low"
assert receipt["status"] != 0, msg
def test_transact_opcode_oog(deploy_client):
""" The receipt status field of a transaction that did NOT throw is 0x0. """
contract_proxy = deploy_rpc_test_contract(deploy_client)
address = contract_proxy.contract_address
assert len(deploy_client.web3.eth.getCode(
to_checksum_address(address))) > 0
# divide the estimate by 2 to run into out-of-gas
startgas = safe_gas_limit(contract_proxy.estimate_gas('loop', 1000)) // 2
transaction = contract_proxy.transact('loop', startgas, 1000)
deploy_client.poll(transaction)
assert check_transaction_threw(deploy_client,
transaction), 'must not be empty'
def add_token(self, token_address: typing.TokenAddress):
if not is_binary_address(token_address):
raise InvalidAddress('Expected binary address format for token')
log_details = {
'node': pex(self.node_address),
'token_address': pex(token_address),
'registry_address': pex(self.address),
}
log.debug('createERC20TokenNetwork called', **log_details)
transaction_hash = self.proxy.transact(
'createERC20TokenNetwork',
safe_gas_limit(GAS_REQUIRED_FOR_CREATE_ERC20_TOKEN_NETWORK),
token_address,
)
self.client.poll(transaction_hash)
receipt_or_none = check_transaction_threw(self.client,
transaction_hash)
if receipt_or_none:
if self.get_token_network(token_address):
msg = 'Token already registered'
log.info(f'createERC20TokenNetwork failed, {msg}',
**log_details)
raise RaidenRecoverableError(msg)
log.critical(f'createERC20TokenNetwork failed', **log_details)
raise TransactionThrew('createERC20TokenNetwork', receipt_or_none)
token_network_address = self.get_token_network(token_address)
if token_network_address is None:
log.critical(
'createERC20TokenNetwork failed and check_transaction_threw didnt detect it',
**log_details,
)
raise RuntimeError('token_to_token_networks failed')
log.info(
'createERC20TokenNetwork successful',
token_network_address=pex(token_network_address),
**log_details,
)
return token_network_address
def test_transact_opcode_oog(deploy_client: JSONRPCClient) -> None:
""" The receipt status field of a transaction that did NOT throw is 0x0. """
contract_proxy, _ = deploy_rpc_test_contract(deploy_client, "RpcTest")
address = contract_proxy.contract_address
assert len(deploy_client.web3.eth.getCode(
to_checksum_address(address))) > 0
# divide the estimate by 2 to run into out-of-gas
check_block = deploy_client.get_checking_block()
startgas = safe_gas_limit(
contract_proxy.estimate_gas(check_block, "loop", 1000)) // 2
transaction = contract_proxy.transact("loop", startgas, 1000)
receipt = deploy_client.poll(transaction)
assert check_transaction_threw(receipt=receipt), "must not be empty"
def test_endpointregistry_gas(endpoint_discovery_services):
""" GAS_REQUIRED_FOR_ENDPOINT_REGISTER value must be equal to the gas required to call
registerEndpoint.
"""
contract_discovery = endpoint_discovery_services[0]
discovery_proxy = contract_discovery.discovery_proxy
endpoint = host_port_to_endpoint('127.0.0.1', 44444)
transaction_hash = discovery_proxy.proxy.transact(
'registerEndpoint',
safe_gas_limit(GAS_REQUIRED_FOR_ENDPOINT_REGISTER),
endpoint,
)
discovery_proxy.client.poll(transaction_hash)
receipt = discovery_proxy.client.get_transaction_receipt(transaction_hash)
msg = 'the transaction failed, check if it was because of the gas being too low'
assert receipt['status'] != 0, msg
def test_transact_throws_opcode(deploy_client: JSONRPCClient) -> None:
""" The receipt status field of a transaction that hit an assert or require is 0x0 """
contract_proxy, _ = deploy_rpc_test_contract(deploy_client, "RpcTest")
address = contract_proxy.contract_address
assert len(deploy_client.web3.eth.getCode(
to_checksum_address(address))) > 0
# the gas estimation returns 0 here, so hardcode a value
startgas = safe_gas_limit(22000)
transaction = contract_proxy.transact("fail_assert", startgas)
receipt = deploy_client.poll(transaction)
assert check_transaction_threw(receipt=receipt), "must not be empty"
transaction = contract_proxy.transact("fail_require", startgas)
receipt = deploy_client.poll(transaction)
assert check_transaction_threw(receipt=receipt), "must not be empty"
def test_duplicated_transaction_different_gas_price_raises(deploy_client: JSONRPCClient) -> None:
""" If the same transaction is sent twice a JSON RPC error is raised. """
gas_price = GasPrice(2000000000)
deploy_client.web3.eth.setGasPriceStrategy(make_decreasing_gas_price_strategy(gas_price))
contract_proxy, _ = deploy_rpc_test_contract(deploy_client, "RpcTest")
address = contract_proxy.contract_address
assert len(deploy_client.web3.eth.getCode(to_checksum_address(address))) > 0
second_client = JSONRPCClient(web3=deploy_client.web3, privkey=deploy_client.privkey)
second_proxy = second_client.new_contract_proxy(
abi=contract_proxy.contract.abi, contract_address=contract_proxy.contract_address
)
check_block = deploy_client.get_checking_block()
startgas = safe_gas_limit(contract_proxy.estimate_gas(check_block, "ret"))
with pytest.raises(ReplacementTransactionUnderpriced):
second_proxy.transact("ret", startgas)
contract_proxy.transact("ret", startgas)
def test_resending_pending_transaction_raises(
deploy_client: JSONRPCClient) -> None:
""" If a pending transaction is re-sent the exception `EthereumNonceTooLow` is raised.
This tests is only sufficient because of the companion test
`test_resending_mined_transaction_raises` which shows that if the
transaction has been mined a different exception is raised.
"""
# Use a _fixed_ gas price strategy so that both transactions are identical.
deploy_client.web3.eth.setGasPriceStrategy(
make_fixed_gas_price_strategy(GasPrice(2000000000)))
contract_proxy, _ = deploy_rpc_test_contract(deploy_client, "RpcTest")
address = contract_proxy.contract_address
assert len(deploy_client.web3.eth.getCode(
to_checksum_address(address))) > 0
# Create a new instance of the JSONRPCClient, this will store the current available nonce
client_invalid_nonce = JSONRPCClient(web3=deploy_client.web3,
privkey=deploy_client.privkey)
check_block = deploy_client.get_checking_block()
gas_estimate = contract_proxy.estimate_gas(check_block, "ret")
assert gas_estimate, "Gas estimation should not fail here"
startgas = safe_gas_limit(gas_estimate)
# At this point `client_invalid_nonce` has a nonce that is `1` too low,
# since a transaction was sent using `deploy_client` above and these two
# instances share the same underlying private key.
#
# Note that it is assumed this runs fast enough so that the first transaction is not
# mined before second is sent.
contract_proxy.transact("ret", startgas)
with pytest.raises(EthereumNonceTooLow):
client_invalid_nonce.new_contract_proxy(
abi=contract_proxy.contract.abi,
contract_address=contract_proxy.contract_address).transact(
"ret", startgas)
def test_duplicated_transaction_same_gas_price_raises(deploy_client: JSONRPCClient) -> None:
""" If the same transaction is sent twice a JSON RPC error is raised. """
gas_price = GasPrice(2000000000)
gas_price_strategy = make_fixed_gas_price_strategy(gas_price)
deploy_client.web3.eth.setGasPriceStrategy(gas_price_strategy)
contract_proxy, _ = deploy_rpc_test_contract(deploy_client, "RpcTest")
address = contract_proxy.contract_address
assert len(deploy_client.web3.eth.getCode(to_checksum_address(address))) > 0
second_client = JSONRPCClient(web3=deploy_client.web3, privkey=deploy_client.privkey)
second_proxy = second_client.new_contract_proxy(
abi=contract_proxy.contract.abi, contract_address=contract_proxy.contract_address
)
check_block = deploy_client.get_checking_block()
gas_estimate = contract_proxy.estimate_gas(check_block, "ret")
assert gas_estimate, "Gas estimation should not fail here"
startgas = safe_gas_limit(gas_estimate)
contract_proxy.transact("ret", startgas)
with pytest.raises(TransactionAlreadyPending):
second_proxy.transact("ret", startgas)
def register_secret_batch(self, secrets: List[Secret]):
"""Register a batch of secrets. Check if they are already registered at
the given block identifier."""
secrets_to_register = list()
secrethashes_to_register = list()
secrethashes_not_sent = list()
transaction_result = AsyncResult()
wait_for = set()
# secret registration has no preconditions:
#
# - The action does not depend on any state, it's always valid to call
# it.
# - This action is always susceptible to race conditions.
#
# Therefore this proxy only needs to detect if the secret is already
# registered, to avoid sending obviously unecessary transactions, and
# it has to handle race conditions.
with self._open_secret_transactions_lock:
verification_block_hash = self.client.get_confirmed_blockhash()
for secret in secrets:
secrethash = sha3(secret)
secrethash_hex = encode_hex(secrethash)
# Do the local test on `open_secret_transactions` first, then
# if necessary do an RPC call.
#
# The call to `is_secret_registered` has two conflicting
# requirements:
#
# - Avoid sending duplicated transactions for the same lock
# - Operating on a consistent/confirmed view of the blockchain
# (if a secret has been registered in a block that is not
# confirmed it doesn't count yet, an optimization would be to
# *not* send the transaction and wait for the confirmation)
#
# The code below respects the consistent blockchain view,
# meaning that if this proxy method is called with an old
# blockhash an unecessary transaction will be sent, and the
# error will be treated as a race-condition.
other_result = self.open_secret_transactions.get(secret)
if other_result is not None:
wait_for.add(other_result)
secrethashes_not_sent.append(secrethash_hex)
elif not self.is_secret_registered(secrethash,
verification_block_hash):
secrets_to_register.append(secret)
secrethashes_to_register.append(secrethash_hex)
self.open_secret_transactions[secret] = transaction_result
# From here on the lock is not required. Context-switches will happen
# for the gas estimation and the transaction, however the
# synchronization data is limited to the open_secret_transactions
log_details = {
"node": pex(self.node_address),
"contract": pex(self.address),
"secrethashes": secrethashes_to_register,
"secrethashes_not_sent": secrethashes_not_sent,
}
if not secrets_to_register:
log.debug("registerSecretBatch skipped, waiting for transactions",
**log_details)
gevent.joinall(wait_for, raise_error=True)
log.info("registerSecretBatch successful", **log_details)
return
checking_block = self.client.get_checking_block()
gas_limit = self.proxy.estimate_gas(checking_block,
"registerSecretBatch",
secrets_to_register)
receipt = None
transaction_hash = None
msg = None
if gas_limit:
gas_limit = safe_gas_limit(
gas_limit,
len(secrets_to_register) * GAS_REQUIRED_PER_SECRET_IN_BATCH)
log.debug("registerSecretBatch called", **log_details)
try:
transaction_hash = self.proxy.transact("registerSecretBatch",
gas_limit,
secrets_to_register)
self.client.poll(transaction_hash)
receipt = self.client.get_transaction_receipt(transaction_hash)
except Exception as e: # pylint: disable=broad-except
msg = f"Unexpected exception {e} at sending registerSecretBatch transaction."
# Clear `open_secret_transactions` regardless of the transaction being
# successfully executed or not.
with self._open_secret_transactions_lock:
for secret in secrets_to_register:
self.open_secret_transactions.pop(secret)
# As of version `0.4.0` of the contract has *no* asserts or requires.
# Therefore the only reason for the transaction to fail is if there is
# a bug.
unrecoverable_error = (gas_limit is None or receipt is None
or receipt["status"] == RECEIPT_FAILURE_CODE)
exception: Union[RaidenRecoverableError, RaidenUnrecoverableError]
if unrecoverable_error:
# If the transaction was sent it must not fail. If this happened
# some of our assumptions is broken therefore the error is
# unrecoverable
if receipt is not None:
if receipt["gasUsed"] == gas_limit:
# The transaction failed and all gas was used. This can
# happen because of:
#
# - A compiler bug if an invalid opcode was executed.
# - A configuration bug if an assert was executed,
# because version 0.4.0 of the secret registry does not have an
# assert.
# - An ethereum client bug if the gas_limit was
# underestimated.
#
# Safety cannot be guaranteed under any of these cases,
# this error is unrecoverable.
error = (
"Secret registration failed because of a bug in either "
"the solidity compiler, the running ethereum client, or "
"a configuration error in Raiden.")
else:
# The transaction failed and *not* all gas was used. This
# can happen because of:
#
# - A compiler bug if a revert was introduced.
# - A configuration bug, because for 0.4.0 the secret
# registry does not have a revert.
error = (
"Secret registration failed because of a configuration "
"bug or compiler bug. Please double check the secret "
"smart contract is at version 0.4.0, if it is then a "
"compiler bug was hit.")
log.critical(error, **log_details)
exception = RaidenUnrecoverableError(error)
transaction_result.set_exception(exception)
raise exception
# If gas_limit is set and there is no receipt then an exception was
# raised while sending the transaction. This should only happen if
# the account is being used concurrently, which is not supported.
# This can happen because:
#
# - The nonce of the transaction was already used
# - The nonce was reused *and* the account didn't have enough ether
# to pay for the gas
#
# Safety cannot be guaranteed under any of these cases, this error
# is unrecoverable. *Note*: This assumes the ethereum client
# takes into account the current transactions in the pool.
if gas_limit:
assert msg, "Unexpected control flow, an exception should have been raised."
error = (
f"Sending the the transaction for registerSecretBatch failed with: `{msg}`. "
f"This happens if the same ethereum account is being used by more than one "
f"program which is not supported.")
log.critical(error, **log_details)
exception = RaidenUnrecoverableError(error)
transaction_result.set_exception(exception)
raise exception
# gas_limit can fail because:
#
# - The Ethereum client detected the transaction could not
# successfully execute, this happens if an assert/revert is hit.
# - The account is lacking funds to pay for the gas.
#
# Either of these is a bug. The contract does not use
# assert/revert, and the account should always be funded
self.proxy.jsonrpc_client.check_for_insufficient_eth(
transaction_name="registerSecretBatch",
transaction_executed=True,
required_gas=gas_limit,
block_identifier=checking_block,
)
error = "Call to registerSecretBatch couldn't be done"
log.critical(error, **log_details)
exception = RaidenRecoverableError(error)
transaction_result.set_exception(exception)
raise exception
# The local **MUST** transaction_result be set before waiting for the
# other results, otherwise we have a dead-lock
transaction_result.set(transaction_hash)
if wait_for:
log.info("registerSecretBatch waiting for pending", **log_details)
gevent.joinall(wait_for, raise_error=True)
log.info("registerSecretBatch successful", **log_details)
def _register_secret_batch(
self,
secrets_to_register: List[Secret],
transaction_result: AsyncResult,
log_details: Dict[Any, Any],
) -> None:
checking_block = self.client.get_checking_block()
gas_limit = self.proxy.estimate_gas(checking_block,
"registerSecretBatch",
secrets_to_register)
receipt = None
transaction_hash = None
msg = None
if gas_limit:
gas_limit = safe_gas_limit(
gas_limit,
len(secrets_to_register) * GAS_REQUIRED_PER_SECRET_IN_BATCH)
log_details["gas_limit"] = gas_limit
try:
transaction_hash = self.proxy.transact("registerSecretBatch",
gas_limit,
secrets_to_register)
receipt = self.client.poll(transaction_hash)
except Exception as e: # pylint: disable=broad-except
msg = f"Unexpected exception {e} at sending registerSecretBatch transaction."
# Clear `open_secret_transactions` regardless of the transaction being
# successfully executed or not.
with self._open_secret_transactions_lock:
for secret in secrets_to_register:
self.open_secret_transactions.pop(secret)
# As of version `0.4.0` of the contract has *no* asserts or requires.
# Therefore the only reason for the transaction to fail is if there is
# a bug.
unrecoverable_error = (gas_limit is None or receipt is None
or receipt["status"] == RECEIPT_FAILURE_CODE)
exception: Union[RaidenRecoverableError, RaidenUnrecoverableError]
if unrecoverable_error:
# If the transaction was sent it must not fail. If this happened
# some of our assumptions is broken therefore the error is
# unrecoverable
if receipt is not None:
if receipt["gasUsed"] == gas_limit:
# The transaction failed and all gas was used. This can
# happen because of:
#
# - A compiler bug if an invalid opcode was executed.
# - A configuration bug if an assert was executed,
# because version 0.4.0 of the secret registry does not have an
# assert.
# - An ethereum client bug if the gas_limit was
# underestimated.
#
# Safety cannot be guaranteed under any of these cases,
# this error is unrecoverable.
error = (
"Secret registration failed because of a bug in either "
"the solidity compiler, the running ethereum client, or "
"a configuration error in Raiden.")
else:
# The transaction failed and *not* all gas was used. This
# can happen because of:
#
# - A compiler bug if a revert was introduced.
# - A configuration bug, because for 0.4.0 the secret
# registry does not have a revert.
error = (
"Secret registration failed because of a configuration "
"bug or compiler bug. Please double check the secret "
"smart contract is at version 0.4.0, if it is then a "
"compiler bug was hit.")
exception = RaidenUnrecoverableError(error)
transaction_result.set_exception(exception)
raise exception
# If gas_limit is set and there is no receipt then an exception was
# raised while sending the transaction. This should only happen if
# the account is being used concurrently, which is not supported.
# This can happen because:
#
# - The nonce of the transaction was already used
# - The nonce was reused *and* the account didn't have enough ether
# to pay for the gas
#
# Safety cannot be guaranteed under any of these cases, this error
# is unrecoverable. *Note*: This assumes the ethereum client
# takes into account the current transactions in the pool.
if gas_limit:
assert msg, "Unexpected control flow, an exception should have been raised."
error = (
f"Sending the the transaction for registerSecretBatch "
f"failed with: `{msg}`. This happens if the same ethereum "
f"account is being used by more than one program which is not "
f"supported.")
exception = RaidenUnrecoverableError(error)
transaction_result.set_exception(exception)
raise exception
# gas_limit can fail because:
#
# - The Ethereum client detected the transaction could not
# successfully execute, this happens if an assert/revert is hit.
# - The account is lacking funds to pay for the gas.
#
# Either of these is a bug. The contract does not use
# assert/revert, and the account should always be funded
self.proxy.jsonrpc_client.check_for_insufficient_eth(
transaction_name="registerSecretBatch",
transaction_executed=True,
required_gas=gas_limit,
block_identifier=checking_block,
)
error = "Call to registerSecretBatch couldn't be done"
exception = RaidenRecoverableError(error)
transaction_result.set_exception(exception)
raise exception
# The local **MUST** transaction_result be set before waiting for the
# other results, otherwise we have a dead-lock
transaction_result.set(transaction_hash)
def _add_token(
self,
token_address: TokenAddress,
additional_arguments: Dict,
) -> Address:
if not is_binary_address(token_address):
raise InvalidAddress('Expected binary address format for token')
token_proxy = Token(
jsonrpc_client=self.client,
token_address=token_address,
contract_manager=self.contract_manager,
)
if token_proxy.total_supply() == '':
raise InvalidToken(
'Given token address does not follow the ERC20 standard (missing totalSupply()',
)
log_details = {
'node': pex(self.node_address),
'token_address': pex(token_address),
'registry_address': pex(self.address),
}
log.debug('createERC20TokenNetwork called', **log_details)
checking_block = self.client.get_checking_block()
error_prefix = 'Call to createERC20TokenNetwork will fail'
kwarguments = {'_token_address': token_address}
kwarguments.update(additional_arguments)
gas_limit = self.proxy.estimate_gas(
checking_block,
'createERC20TokenNetwork',
**kwarguments,
)
if gas_limit:
error_prefix = 'Call to createERC20TokenNetwork failed'
transaction_hash = self.proxy.transact(
'createERC20TokenNetwork',
safe_gas_limit(gas_limit,
GAS_REQUIRED_FOR_CREATE_ERC20_TOKEN_NETWORK),
**kwarguments,
)
self.client.poll(transaction_hash)
receipt_or_none = check_transaction_threw(self.client,
transaction_hash)
transaction_executed = gas_limit is not None
if not transaction_executed or receipt_or_none:
error_type = RaidenUnrecoverableError
if transaction_executed:
block = receipt_or_none['blockNumber']
else:
block = checking_block
required_gas = gas_limit if gas_limit else GAS_REQUIRED_FOR_CREATE_ERC20_TOKEN_NETWORK
self.proxy.jsonrpc_client.check_for_insufficient_eth(
transaction_name='createERC20TokenNetwork',
transaction_executed=transaction_executed,
required_gas=required_gas,
block_identifier=block,
)
msg = ''
if self.get_token_network(token_address, block):
msg = 'Token already registered'
error_type = RaidenRecoverableError
error_msg = f'{error_prefix}. {msg}'
if error_type == RaidenRecoverableError:
log.warning(error_msg, **log_details)
else:
log.critical(error_msg, **log_details)
raise error_type(error_msg)
token_network_address = self.get_token_network(token_address, 'latest')
if token_network_address is None:
msg = 'createERC20TokenNetwork succeeded but token network address is Null'
log.critical(msg, **log_details)
raise RuntimeError(msg)
log.info(
'createERC20TokenNetwork successful',
token_network_address=pex(token_network_address),
**log_details,
)
return token_network_address
def add_token(self, token_address: TokenAddress):
if not is_binary_address(token_address):
raise InvalidAddress('Expected binary address format for token')
log_details = {
'node': pex(self.node_address),
'token_address': pex(token_address),
'registry_address': pex(self.address),
}
log.debug('createERC20TokenNetwork called', **log_details)
error_prefix = 'Call to createERC20TokenNetwork will fail'
gas_limit = self.proxy.estimate_gas(
'pending',
'createERC20TokenNetwork',
token_address,
)
if gas_limit:
error_prefix = 'Call to createERC20TokenNetwork failed'
transaction_hash = self.proxy.transact(
'createERC20TokenNetwork',
safe_gas_limit(gas_limit, GAS_REQUIRED_FOR_CREATE_ERC20_TOKEN_NETWORK),
token_address,
)
self.client.poll(transaction_hash)
receipt_or_none = check_transaction_threw(self.client, transaction_hash)
transaction_executed = gas_limit is not None
if not transaction_executed or receipt_or_none:
error_type = RaidenUnrecoverableError
if transaction_executed:
block = receipt_or_none['blockNumber']
else:
block = 'pending'
required_gas = gas_limit if gas_limit else GAS_REQUIRED_FOR_CREATE_ERC20_TOKEN_NETWORK
self.proxy.jsonrpc_client.check_for_insufficient_eth(
transaction_name='createERC20TokenNetwork',
transaction_executed=transaction_executed,
required_gas=required_gas,
block_identifier=block,
)
msg = ''
if self.get_token_network(token_address, block):
msg = 'Token already registered'
error_type = RaidenRecoverableError
error_msg = f'{error_prefix}. {msg}'
if error_type == RaidenRecoverableError:
log.warning(error_msg, **log_details)
else:
log.critical(error_msg, **log_details)
raise error_type(error_msg)
token_network_address = self.get_token_network(token_address, 'latest')
if token_network_address is None:
msg = 'createERC20TokenNetwork succeeded but token network address is Null'
log.critical(msg, **log_details)
raise RuntimeError(msg)
log.info(
'createERC20TokenNetwork successful',
token_network_address=pex(token_network_address),
**log_details,
)
return token_network_address
def settle(
self,
channel_identifier: typing.ChannelID,
transferred_amount: int,
locked_amount: int,
locksroot: typing.Locksroot,
partner: typing.Address,
partner_transferred_amount: int,
partner_locked_amount: int,
partner_locksroot: typing.Locksroot,
):
""" Settle the channel.
Raises:
ChannelBusyError: If the channel is busy with another operation
"""
log_details = {
'channel_identifier': channel_identifier,
'token_network': pex(self.address),
'node': pex(self.node_address),
'partner': pex(partner),
'transferred_amount': transferred_amount,
'locked_amount': locked_amount,
'locksroot': encode_hex(locksroot),
'partner_transferred_amount': partner_transferred_amount,
'partner_locked_amount': partner_locked_amount,
'partner_locksroot': encode_hex(partner_locksroot),
}
log.debug('settle called', **log_details)
self._check_for_outdated_channel(
self.node_address,
partner,
channel_identifier,
)
with self.channel_operations_lock[partner]:
our_maximum = transferred_amount + locked_amount
partner_maximum = partner_transferred_amount + partner_locked_amount
# The second participant transferred + locked amount must be higher
our_bp_is_larger = our_maximum > partner_maximum
if our_bp_is_larger:
gas_limit = self.proxy.estimate_gas(
'settleChannel',
channel_identifier,
partner,
partner_transferred_amount,
partner_locked_amount,
partner_locksroot,
self.node_address,
transferred_amount,
locked_amount,
locksroot,
)
gas_limit = safe_gas_limit(gas_limit,
GAS_REQUIRED_FOR_SETTLE_CHANNEL)
transaction_hash = self.proxy.transact(
'settleChannel',
gas_limit,
channel_identifier,
partner,
partner_transferred_amount,
partner_locked_amount,
partner_locksroot,
self.node_address,
transferred_amount,
locked_amount,
locksroot,
)
else:
gas_limit = self.proxy.estimate_gas(
'settleChannel',
channel_identifier,
self.node_address,
transferred_amount,
locked_amount,
locksroot,
partner,
partner_transferred_amount,
partner_locked_amount,
partner_locksroot,
)
gas_limit = safe_gas_limit(gas_limit,
GAS_REQUIRED_FOR_SETTLE_CHANNEL)
transaction_hash = self.proxy.transact(
'settleChannel',
gas_limit,
channel_identifier,
self.node_address,
transferred_amount,
locked_amount,
locksroot,
partner,
partner_transferred_amount,
partner_locked_amount,
partner_locksroot,
)
self.client.poll(transaction_hash)
receipt_or_none = check_transaction_threw(self.client,
transaction_hash)
if receipt_or_none:
log.critical('settle failed', **log_details)
self._check_channel_state_for_settle(
self.node_address,
partner,
channel_identifier,
)
raise TransactionThrew('Settle', receipt_or_none)
log.info('settle successful', **log_details)
def _add_token(self, token_address: TokenAddress,
additional_arguments: Dict) -> Address:
if not is_binary_address(token_address):
raise InvalidAddress("Expected binary address format for token")
token_proxy = Token(
jsonrpc_client=self.client,
token_address=token_address,
contract_manager=self.contract_manager,
)
if token_proxy.total_supply() == "":
raise InvalidToken(
"Given token address does not follow the ERC20 standard (missing totalSupply()"
)
log_details = {
"node": pex(self.node_address),
"token_address": pex(token_address),
"registry_address": pex(self.address),
}
log.debug("createERC20TokenNetwork called", **log_details)
checking_block = self.client.get_checking_block()
error_prefix = "Call to createERC20TokenNetwork will fail"
kwarguments = {"_token_address": token_address}
kwarguments.update(additional_arguments)
gas_limit = self.proxy.estimate_gas(checking_block,
"createERC20TokenNetwork",
**kwarguments)
if gas_limit:
error_prefix = "Call to createERC20TokenNetwork failed"
transaction_hash = self.proxy.transact(
"createERC20TokenNetwork",
safe_gas_limit(gas_limit,
GAS_REQUIRED_FOR_CREATE_ERC20_TOKEN_NETWORK),
**kwarguments,
)
self.client.poll(transaction_hash)
receipt_or_none = check_transaction_threw(self.client,
transaction_hash)
transaction_executed = gas_limit is not None
if not transaction_executed or receipt_or_none:
if transaction_executed:
block = receipt_or_none["blockNumber"]
else:
block = checking_block
required_gas = gas_limit if gas_limit else GAS_REQUIRED_FOR_CREATE_ERC20_TOKEN_NETWORK
self.proxy.jsonrpc_client.check_for_insufficient_eth(
transaction_name="createERC20TokenNetwork",
transaction_executed=transaction_executed,
required_gas=required_gas,
block_identifier=block,
)
if self.get_token_network(token_address, block):
error_msg = f"{error_prefix}. Token already registered"
log.warning(error_msg, **log_details)
raise RaidenRecoverableError(error_msg)
error_msg = f"{error_prefix}"
log.critical(error_msg, **log_details)
raise RaidenUnrecoverableError(error_msg)
token_network_address = self.get_token_network(token_address, "latest")
if token_network_address is None:
msg = "createERC20TokenNetwork succeeded but token network address is Null"
log.critical(msg, **log_details)
raise RuntimeError(msg)
log.info(
"createERC20TokenNetwork successful",
token_network_address=pex(token_network_address),
**log_details,
)
return token_network_address
def _deposit(
self,
beneficiary: Address,
token: Token,
total_deposit: TokenAmount,
amount_to_deposit: TokenAmount,
log_details: Dict[str, Any],
) -> None:
token.approve(allowed_address=Address(self.address),
allowance=amount_to_deposit)
checking_block = self.client.get_checking_block()
gas_limit = self.proxy.estimate_gas(checking_block, "deposit",
to_checksum_address(beneficiary),
total_deposit)
if not gas_limit:
failed_at = self.proxy.rpc_client.get_block("latest")
failed_at_blocknumber = failed_at["number"]
self.proxy.rpc_client.check_for_insufficient_eth(
transaction_name="deposit",
transaction_executed=False,
required_gas=self.gas_measurements["UserDeposit.deposit"],
block_identifier=failed_at_blocknumber,
)
latest_deposit = self.get_total_deposit(
address=self.node_address,
block_identifier=failed_at_blocknumber)
amount_to_deposit = TokenAmount(total_deposit - latest_deposit)
allowance = token.allowance(
owner=self.node_address,
spender=Address(self.address),
block_identifier=failed_at_blocknumber,
)
whole_balance = self.whole_balance(
block_identifier=failed_at_blocknumber)
whole_balance_limit = self.whole_balance_limit(
block_identifier=failed_at_blocknumber)
if allowance < amount_to_deposit:
msg = (
"The allowance is insufficient. Check concurrent deposits "
"for the same user deposit but different proxies.")
raise RaidenRecoverableError(msg)
if token.balance_of(self.node_address,
failed_at_blocknumber) < amount_to_deposit:
msg = "The address doesnt have enough tokens"
raise RaidenRecoverableError(msg)
if latest_deposit < total_deposit:
msg = "Deposit amount did not increase after deposit transaction"
raise RaidenRecoverableError(msg)
if whole_balance + amount_to_deposit > UINT256_MAX:
msg = (
f"Current whole balance is {whole_balance}. "
f"The new deposit of {amount_to_deposit} would lead to an overflow."
)
raise RaidenRecoverableError(msg)
if whole_balance + amount_to_deposit > whole_balance_limit:
msg = (
f"Current whole balance is {whole_balance}. "
f"With the new deposit of {amount_to_deposit}, the deposit "
f"limit of {whole_balance_limit} would be exceeded.")
raise RaidenRecoverableError(msg)
raise RaidenRecoverableError("Deposit failed of unknown reason")
else:
gas_limit = safe_gas_limit(gas_limit)
log_details["gas_limit"] = gas_limit
transaction_hash = self.proxy.transact(
"deposit", gas_limit, to_checksum_address(beneficiary),
total_deposit)
receipt = self.client.poll(transaction_hash)
failed_receipt = check_transaction_threw(receipt=receipt)
if failed_receipt:
failed_at_blocknumber = failed_receipt["blockNumber"]
latest_deposit = self.get_total_deposit(
address=self.node_address,
block_identifier=failed_at_blocknumber)
amount_to_deposit = TokenAmount(total_deposit - latest_deposit)
allowance = token.allowance(
owner=self.node_address,
spender=Address(self.address),
block_identifier=failed_at_blocknumber,
)
whole_balance = self.whole_balance(
block_identifier=failed_at_blocknumber)
whole_balance_limit = self.whole_balance_limit(
block_identifier=failed_at_blocknumber)
if latest_deposit >= total_deposit:
msg = "Deposit amount already increased after another transaction"
raise RaidenRecoverableError(msg)
if allowance < amount_to_deposit:
msg = (
"The allowance is insufficient. Check concurrent deposits "
"for the same token network but different proxies.")
raise RaidenRecoverableError(msg)
# Because we acquired the lock for the token, and the gas estimation succeeded,
# We know that the account had enough balance for the deposit transaction.
if token.balance_of(self.node_address,
failed_at_blocknumber) < amount_to_deposit:
msg = (
f"Transaction failed and balance decreased unexpectedly. "
f"This could be a bug in Raiden or a mallicious "
f"ERC20 Token.")
raise RaidenRecoverableError(msg)
if whole_balance + amount_to_deposit > UINT256_MAX:
msg = (
f"Current whole balance is {whole_balance}. "
f"The new deposit of {amount_to_deposit} caused an overflow."
)
raise RaidenRecoverableError(msg)
if whole_balance + amount_to_deposit > whole_balance_limit:
msg = (
f"Current whole balance is {whole_balance}. "
f"With the new deposit of {amount_to_deposit}, the deposit "
f"limit of {whole_balance_limit} was exceeded.")
raise RaidenRecoverableError(msg)
if latest_deposit < total_deposit:
msg = "Deposit amount did not increase after deposit transaction"
raise RaidenRecoverableError(msg)
raise RaidenRecoverableError(
"Deposit failed of unknown reason")
def register_secret_batch(self, secrets: List[Secret]):
secrets_to_register = list()
secrethashes_to_register = list()
secrethashes_not_sent = list()
secret_registry_transaction = AsyncResult()
for secret in secrets:
secrethash = sha3(secret)
secrethash_hex = encode_hex(secrethash)
is_register_needed = (
not self.check_registered(secrethash) and
secret not in self.open_secret_transactions
)
if is_register_needed:
secrets_to_register.append(secret)
secrethashes_to_register.append(secrethash_hex)
self.open_secret_transactions[secret] = secret_registry_transaction
else:
secrethashes_not_sent.append(secrethash_hex)
log_details = {
'node': pex(self.node_address),
'contract': pex(self.address),
'secrethashes': secrethashes_to_register,
'secrethashes_not_sent': secrethashes_not_sent,
}
if not secrets_to_register:
log.debug('registerSecretBatch skipped', **log_details)
return
error_prefix = 'Call to registerSecretBatch will fail'
gas_limit = self.proxy.estimate_gas('pending', 'registerSecretBatch', secrets)
if gas_limit:
error_prefix = 'Call to registerSecretBatch failed'
try:
gas_limit = safe_gas_limit(
gas_limit,
len(secrets) * GAS_REQUIRED_PER_SECRET_IN_BATCH,
)
transaction_hash = self.proxy.transact('registerSecretBatch', gas_limit, secrets)
self.client.poll(transaction_hash)
receipt_or_none = check_transaction_threw(self.client, transaction_hash)
except Exception as e:
secret_registry_transaction.set_exception(e)
msg = 'Unexpected exception at sending registerSecretBatch transaction'
else:
secret_registry_transaction.set(transaction_hash)
finally:
for secret in secrets_to_register:
self.open_secret_transactions.pop(secret, None)
transaction_executed = gas_limit is not None
if not transaction_executed or receipt_or_none:
if transaction_executed:
block = receipt_or_none['blockNumber']
else:
block = 'pending'
self.proxy.jsonrpc_client.check_for_insufficient_eth(
transaction_name='registerSecretBatch',
transaction_executed=transaction_executed,
required_gas=len(secrets) * GAS_REQUIRED_PER_SECRET_IN_BATCH,
block_identifier=block,
)
error_msg = f'{error_prefix}. {msg}'
log.critical(error_msg, **log_details)
raise RaidenUnrecoverableError(error_msg)
log.info('registerSecretBatch successful', **log_details)
def register_secret_batch(
self,
secrets: List[Secret],
given_block_identifier: BlockSpecification,
):
secrets_to_register = list()
secrethashes_to_register = list()
secrethashes_not_sent = list()
secret_registry_transaction = AsyncResult()
for secret in secrets:
secrethash = sha3(secret)
secrethash_hex = encode_hex(secrethash)
is_register_needed = (
not self.check_registered(secrethash, given_block_identifier)
and secret not in self.open_secret_transactions)
if is_register_needed:
secrets_to_register.append(secret)
secrethashes_to_register.append(secrethash_hex)
self.open_secret_transactions[
secret] = secret_registry_transaction
else:
secrethashes_not_sent.append(secrethash_hex)
log_details = {
'node': pex(self.node_address),
'contract': pex(self.address),
'secrethashes': secrethashes_to_register,
'secrethashes_not_sent': secrethashes_not_sent,
}
if not secrets_to_register:
log.debug('registerSecretBatch skipped', **log_details)
return
checking_block = self.client.get_checking_block()
error_prefix = 'Call to registerSecretBatch will fail'
gas_limit = self.proxy.estimate_gas(checking_block,
'registerSecretBatch', secrets)
if gas_limit:
error_prefix = 'Call to registerSecretBatch failed'
try:
gas_limit = safe_gas_limit(
gas_limit,
len(secrets) * GAS_REQUIRED_PER_SECRET_IN_BATCH,
)
transaction_hash = self.proxy.transact('registerSecretBatch',
gas_limit, secrets)
self.client.poll(transaction_hash)
receipt_or_none = check_transaction_threw(
self.client, transaction_hash)
except Exception as e:
secret_registry_transaction.set_exception(e)
msg = 'Unexpected exception at sending registerSecretBatch transaction'
else:
secret_registry_transaction.set(transaction_hash)
finally:
for secret in secrets_to_register:
self.open_secret_transactions.pop(secret, None)
transaction_executed = gas_limit is not None
if not transaction_executed or receipt_or_none:
if transaction_executed:
block = receipt_or_none['blockNumber']
else:
block = checking_block
self.proxy.jsonrpc_client.check_for_insufficient_eth(
transaction_name='registerSecretBatch',
transaction_executed=transaction_executed,
required_gas=len(secrets) * GAS_REQUIRED_PER_SECRET_IN_BATCH,
block_identifier=block,
)
error_msg = f'{error_prefix}. {msg}'
log.critical(error_msg, **log_details)
raise RaidenUnrecoverableError(error_msg)
log.info('registerSecretBatch successful', **log_details)