def _encode_abi(cls, abi, arguments, data=None):
argument_types = get_abi_input_types(abi)
if not check_if_arguments_can_be_encoded(abi, arguments, {}):
raise TypeError(
"One or more arguments could not be encoded to the necessary "
"ABI type. Expected types are: {0}".format(
', '.join(argument_types),
)
)
try:
encoded_arguments = encode_abi(
argument_types,
force_obj_to_bytes(arguments),
)
except EncodingError as e:
raise TypeError(
"One or more arguments could not be encoded to the necessary "
"ABI type: {0}".format(str(e))
)
if data:
return add_0x_prefix(
force_bytes(remove_0x_prefix(data)) +
force_bytes(remove_0x_prefix(encode_hex(encoded_arguments)))
)
else:
return encode_hex(encoded_arguments)
def to_hex(value):
"""
Auto converts any supported value into it's hex representation.
"""
if is_boolean(value):
return "0x1" if value else "0x0"
if is_dict(value):
return encode_hex(json.dumps(value, sort_keys=True))
if is_string(value):
if is_prefixed(value, '-0x'):
return from_decimal(value)
elif is_0x_prefixed(value):
return value
else:
return encode_hex(value)
if is_integer(value):
return from_decimal(value)
raise TypeError(
"Unsupported type: '{0}'. Must be one of Boolean, Dictionary, String, "
"or Integer.".format(repr(type(value)))
)
def hex_encode_abi_type(abi_type, value, force_size=None):
"""
Encodes value into a hex string in format of abi_type
"""
validate_abi_type(abi_type)
validate_abi_value(abi_type, value)
data_size = force_size or size_of_type(abi_type)
if is_array_type(abi_type):
sub_type = sub_type_of_array_type(abi_type)
return "".join([remove_0x_prefix(hex_encode_abi_type(sub_type, v, 256)) for v in value])
elif is_bool_type(abi_type):
return to_hex_with_size(value, data_size)
elif is_uint_type(abi_type):
return to_hex_with_size(value, data_size)
elif is_int_type(abi_type):
return to_hex_twos_compliment(value, data_size)
elif is_address_type(abi_type):
return pad_hex(value, data_size)
elif is_bytes_type(abi_type):
if is_bytes(value):
return encode_hex(value)
else:
return value
elif is_string_type(abi_type):
return encode_hex(value)
else:
raise ValueError(
"Unsupported ABI type: {0}".format(abi_type)
)
def to_hex(value=None, hexstr=None, text=None):
"""
Auto converts any supported value into it's hex representation.
Trims leading zeros, as defined in:
https://github.com/ethereum/wiki/wiki/JSON-RPC#hex-value-encoding
"""
assert_one_val(value, hexstr=hexstr, text=text)
if hexstr is not None:
return add_0x_prefix(hexstr.lower())
if text is not None:
return encode_hex(text.encode('utf-8'))
if is_boolean(value):
return "0x1" if value else "0x0"
if is_dict(value):
return encode_hex(json.dumps(value, sort_keys=True))
if isinstance(value, bytes):
return encode_hex(value)
elif is_string(value):
return to_hex(text=value)
if is_integer(value):
return hex(value)
raise TypeError(
"Unsupported type: '{0}'. Must be one of Boolean, Dictionary, String, "
"or Integer.".format(repr(type(value)))
)
def to_dict(self):
return {
'type': self.__class__.__name__,
'message_identifier': self.message_identifier,
'secret': encode_hex(self.secret),
'signature': encode_hex(self.signature),
}
def construct_event_topic_set(event_abi, arguments=None):
if arguments is None:
arguments = {}
if isinstance(arguments, (list, tuple)):
if len(arguments) != len(event_abi['inputs']):
raise ValueError(
"When passing an argument list, the number of arguments must "
"match the event constructor."
)
arguments = {
arg['name']: [arg_value]
for arg, arg_value
in zip(event_abi['inputs'], arguments)
}
normalized_args = {
key: value if is_list_like(value) else [value]
for key, value in arguments.items()
}
event_topic = encode_hex(event_abi_to_log_topic(event_abi))
indexed_args = get_indexed_event_inputs(event_abi)
zipped_abi_and_args = [
(arg, normalized_args.get(arg['name'], [None]))
for arg in indexed_args
]
encoded_args = [
[
None if option is None else encode_hex(encode_single(arg['type'], option))
for option in arg_options]
for arg, arg_options in zipped_abi_and_args
]
topics = list(normalize_topic_list([event_topic] + encoded_args))
return topics
def to_dict(self):
return {
'type': self.__class__.__name__,
'message_identifier': self.message_identifier,
'payment_identifier': self.payment_identifier,
'secrethash': encode_hex(self.secrethash),
'amount': self.amount,
'signature': encode_hex(self.signature),
}
def generate_accounts(seeds):
"""Create private keys and addresses for all seeds.
"""
return {
seed: {
'privatekey': encode_hex(sha3(seed)),
'address': encode_hex(privatekey_to_address(sha3(seed))),
}
for seed in seeds
}
def test_function_access(
owner,
get_accounts,
uraiden_contract,
uraiden_instance,
token_instance,
get_channel):
(A, B, C, D) = get_accounts(4)
uraiden_instance2 = uraiden_contract()
channel = get_channel(uraiden_instance, token_instance, 100, A, B)[:3]
(sender, receiver, open_block_number) = channel
uraiden_instance.call().getKey(*channel)
uraiden_instance.call().getChannelInfo(*channel)
# even if TransactionFailed , this means the function is public / external
with pytest.raises(tester.TransactionFailed):
uraiden_instance.transact().extractBalanceProofSignature(
receiver,
open_block_number,
10,
encode_hex(bytearray(65))
)
with pytest.raises(tester.TransactionFailed):
uraiden_instance.transact().tokenFallback(sender, 10, encode_hex(bytearray(20)))
with pytest.raises(tester.TransactionFailed):
uraiden_instance.transact({'from': C}).createChannel(D, 10)
with pytest.raises(tester.TransactionFailed):
uraiden_instance.transact().topUp(receiver, open_block_number, 10)
with pytest.raises(tester.TransactionFailed):
uraiden_instance.transact().uncooperativeClose(receiver, open_block_number, 10)
with pytest.raises(tester.TransactionFailed):
uraiden_instance.transact().cooperativeClose(
receiver,
open_block_number,
10,
encode_hex(bytearray(65)),
encode_hex(bytearray(65))
)
with pytest.raises(tester.TransactionFailed):
uraiden_instance.transact().settle(receiver, open_block_number)
# Test functions are private
# raise ValueError("No matching functions found")
with pytest.raises(ValueError):
uraiden_instance.transact().createChannelPrivate(*channel)
with pytest.raises(ValueError):
uraiden_instance.transact().topUpPrivate(*channel, 10)
with pytest.raises(ValueError):
uraiden_instance.transact().initChallengePeriod(receiver, open_block_number, 10)
with pytest.raises(ValueError):
uraiden_instance.transact().settleChannel(*channel, 10)
def close(
self,
partner: typing.Address,
nonce: typing.Nonce,
balance_hash: typing.BalanceHash,
additional_hash: typing.AdditionalHash,
signature: typing.Signature,
):
""" Close the channel using the provided balance proof.
Raises:
ChannelBusyError: If the channel is busy with another operation.
ChannelIncorrectStateError: If the channel is not in the open state.
"""
log_details = {
'token_network': pex(self.address),
'node': pex(self.node_address),
'partner': pex(partner),
'nonce': nonce,
'balance_hash': encode_hex(balance_hash),
'additional_hash': encode_hex(additional_hash),
'signature': encode_hex(signature),
}
log.info('close called', **log_details)
if not self.channel_is_opened(self.node_address, partner):
raise ChannelIncorrectStateError(
'Channel is not in an opened state. It cannot be closed.',
)
with self.channel_operations_lock[partner]:
transaction_hash = self.proxy.transact(
'closeChannel',
partner,
balance_hash,
nonce,
additional_hash,
signature,
)
self.client.poll(unhexlify(transaction_hash))
receipt_or_none = check_transaction_threw(self.client, transaction_hash)
if receipt_or_none:
log.critical('close failed', **log_details)
if not self.channel_is_opened(self.node_address, partner):
raise ChannelIncorrectStateError(
'Channel is not in an opened state. It cannot be closed.',
)
raise TransactionThrew('Close', receipt_or_none)
log.info('close successful', **log_details)
def __repr__(self):
return (
'<'
'LockedTransferUnsignedState id:{} token:{} balance_proof:{} '
'lock:{} target:{}'
'>'
).format(
self.payment_identifier,
encode_hex(self.token),
self.balance_proof,
self.lock,
encode_hex(self.target),
)
def __repr__(self):
return (
'<'
'LockedTransferSignedState msgid:{} id:{} token:{} lock:{}'
' target:{}'
'>'
).format(
self.message_identifier,
self.payment_identifier,
encode_hex(self.token),
self.lock,
encode_hex(self.target),
)
def _login_or_register(self):
# password is signed server address
password = encode_hex(self._sign(self._server_name.encode()))
seed = int.from_bytes(self._sign(b'seed')[-32:], 'big')
rand = Random() # deterministic, random secret for username suffixes
rand.seed(seed)
# try login and register on first 5 possible accounts
for i in range(5):
base_username = to_normalized_address(self._raiden_service.address)
username = base_username
if i:
username = f'{username}.{rand.randint(0, 0xffffffff):08x}'
try:
self._client.sync_token = None
self._client.login(username, password)
self.log.info(
'LOGIN',
homeserver=self._server_name,
server_url=self._server_url,
username=username,
)
break
except MatrixRequestError as ex:
if ex.code != 403:
raise
self.log.debug(
'Could not login. Trying register',
homeserver=self._server_name,
server_url=self._server_url,
username=username,
)
try:
self._client.register_with_password(username, password)
self.log.info(
'REGISTER',
homeserver=self._server_name,
server_url=self._server_url,
username=username,
)
break
except MatrixRequestError as ex:
if ex.code != 400:
raise
self.log.debug('Username taken. Continuing')
continue
else:
raise ValueError('Could not register or login!')
# TODO: persist access_token, to avoid generating a new login every time
name = encode_hex(self._sign(self._client.user_id.encode()))
self._get_user(self._client.user_id).set_display_name(name)
def _set_function_info(self):
self.abi = find_matching_fn_abi(self.contract_abi,
self.function_identifier,
self.args,
self.kwargs)
if self.function_identifier is FallbackFn:
self.selector = encode_hex(b'')
elif is_text(self.function_identifier):
self.selector = encode_hex(function_abi_to_4byte_selector(self.abi))
else:
raise TypeError("Unsupported function identifier")
self.arguments = merge_args_and_kwargs(self.abi, self.args, self.kwargs)
def all_events_filter(
self,
from_block: typing.BlockSpecification = None,
to_block: typing.BlockSpecification = None,
) -> typing.Tuple[Filter, Filter]:
channel_topics = [
None, # event topic is any
encode_hex(encode_single('bytes32', self.channel_identifier)), # channel_id
]
# This will match the events:
# ChannelOpened, ChannelNewDeposit, ChannelWithdraw, ChannelClosed,
# NonClosingBalanceProofUpdated, ChannelSettled
channel_filter = self.token_network.client.new_filter(
contract_address=self.token_network.address,
topics=channel_topics,
from_block=from_block,
to_block=to_block,
)
# This will match the events:
# ChannelUnlocked
#
# These topics must not be joined with the channel_filter, otherwise
# the filter ChannelSettled wont match (observed with geth
# 1.8.11-stable-dea1ce05)
event_unlock_abi = CONTRACT_MANAGER.get_event_abi(
CONTRACT_TOKEN_NETWORK,
EVENT_CHANNEL_UNLOCKED,
)
event_unlock_topic = encode_hex(event_abi_to_log_topic(event_unlock_abi))
participant1_topic = encode_hex(self.participant1.rjust(32, b'\0'))
participant2_topic = encode_hex(self.participant2.rjust(32, b'\0'))
unlock_topics = [
event_unlock_topic,
[participant1_topic, participant2_topic], # event participant1 is us or them
[participant2_topic, participant1_topic], # event participant2 is us or them
]
unlock_filter = self.token_network.client.new_filter(
contract_address=self.token_network.address,
topics=unlock_topics,
from_block=from_block,
to_block=to_block,
)
return channel_filter, unlock_filter
def encode_payments(payments):
args = []
value_sum = 0
for idx, v in payments:
addr = ethereum.tester.accounts[idx]
value_sum += v
v = int(v)
assert v < 2**96
vv = zpad(int_to_big_endian(v), 12)
mix = vv + addr
assert len(mix) == 32
print(encode_hex(mix), "v: ", v, "addr", encode_hex(addr))
args.append(mix)
return args, value_sum
def test_cooperative_wrong_balance_proof(
channel_manager: ChannelManager,
confirmed_open_channel: Channel,
sender_address: str
):
channel_id = (confirmed_open_channel.sender, confirmed_open_channel.block)
channel_rec = channel_manager.channels[channel_id]
sig1 = encode_hex(confirmed_open_channel.create_transfer(5))
channel_manager.register_payment(sender_address, confirmed_open_channel.block, 5, sig1)
sig2 = encode_hex(confirmed_open_channel.create_transfer(1))
with pytest.raises(InvalidBalanceProof):
channel_manager.sign_close(sender_address, confirmed_open_channel.block, sig2)
assert channel_rec.is_closed is False
def to_dict(self):
return {
'type': self.__class__.__name__,
'chain_id': self.chain_id,
'message_identifier': self.message_identifier,
'payment_identifier': self.payment_identifier,
'secret': encode_hex(self.secret),
'nonce': self.nonce,
'token_network_address': to_normalized_address(self.token_network_address),
'channel': encode_hex(self.channel),
'transferred_amount': self.transferred_amount,
'locked_amount': self.locked_amount,
'locksroot': encode_hex(self.locksroot),
'signature': encode_hex(self.signature),
}
def geth_node_config(miner_pkey, p2p_port, rpc_port):
address = privatekey_to_address(miner_pkey)
pub = remove_0x_prefix(encode_hex(privtopub(miner_pkey)))
config = {
'nodekey': miner_pkey,
'nodekeyhex': remove_0x_prefix(encode_hex(miner_pkey)),
'pub': pub,
'address': address,
'port': p2p_port,
'rpcport': rpc_port,
'enode': f'enode://{pub}@127.0.0.1:{p2p_port}',
}
return config
def wait_for_txs(client_or_web3, txhashes, timeout=360):
if isinstance(client_or_web3, Web3):
web3 = client_or_web3
else:
web3 = client_or_web3.web3
start = time.monotonic()
outstanding = False
txhashes = txhashes[:]
while txhashes and time.monotonic() - start < timeout:
remaining_timeout = timeout - (time.monotonic() - start)
if outstanding != len(txhashes) or int(remaining_timeout) % 10 == 0:
outstanding = len(txhashes)
log.debug(
"Waiting for tx confirmations",
outstanding=outstanding,
timeout_remaining=int(remaining_timeout),
)
for txhash in txhashes[:]:
tx = web3.eth.getTransaction(txhash)
if tx and tx['blockNumber'] is not None:
txhashes.remove(txhash)
time.sleep(.1)
time.sleep(1)
if len(txhashes):
txhashes_str = ', '.join(encode_hex(txhash) for txhash in txhashes)
raise ScenarioTxError(
f"Timeout waiting for txhashes: {txhashes_str}",
)
def create_signed_transaction(
private_key: str,
web3: Web3,
to: str,
value: int=0,
data=b'',
nonce_offset: int = 0,
gas_price: Union[int, None] = None,
gas_limit: int = NETWORK_CFG.POT_GAS_LIMIT
) -> str:
"""
Creates a signed on-chain transaction compliant with EIP155.
"""
if gas_price is None:
gas_price = NETWORK_CFG.GAS_PRICE
tx = create_transaction(
web3=web3,
from_=privkey_to_addr(private_key),
to=to,
value=value,
data=data,
nonce_offset=nonce_offset,
gas_price=gas_price,
gas_limit=gas_limit
)
sign_transaction(tx, private_key, int(web3.version.network))
return encode_hex(rlp.encode(tx))
def test_receiver_validation(channel_manager, client, wait_for_blocks):
n = 100
# open channel
channel = client.open_channel(channel_manager.state.receiver, n)
wait_for_blocks(channel_manager.blockchain.n_confirmations)
gevent.sleep(channel_manager.blockchain.poll_interval)
assert (channel.sender, channel.block) in channel_manager.channels
# prepare balance proofs
t_start = time.time()
balance_proofs = [encode_hex(channel.create_transfer(1)) for _ in range(n)]
t_diff = time.time() - t_start
log.info("%d balance proofs prepared in %s (%f / s)",
n, datetime.timedelta(seconds=t_diff), n / t_diff)
# validate
t_start = time.time()
for i, balance_proof in enumerate(balance_proofs):
log.debug('Transfer {}'.format(i))
sender, received = channel_manager.register_payment(
channel.sender,
channel.block,
i + 1,
balance_proof)
assert sender == channel.sender
assert received == 1
t_diff = time.time() - t_start
log.info("%d balance proofs verified in %s (%f / s)",
n, datetime.timedelta(seconds=t_diff), n / t_diff)
def create_signed_contract_transaction(
private_key: str,
contract: Contract,
func_name: str,
args: List[Any],
value: int=0,
nonce_offset: int = 0,
gas_price: Union[int, None] = None,
gas_limit: int = NETWORK_CFG.GAS_LIMIT
) -> str:
"""
Creates a signed on-chain contract transaction compliant with EIP155.
"""
if gas_price is None:
gas_price = NETWORK_CFG.GAS_PRICE
tx = create_contract_transaction(
contract=contract,
from_=privkey_to_addr(private_key),
func_name=func_name,
args=args,
value=value,
nonce_offset=nonce_offset,
gas_price=gas_price,
gas_limit=gas_limit
)
sign_transaction(tx, private_key, int(contract.web3.version.network))
return encode_hex(rlp.encode(tx))
def to_dict(self):
return {
'type': self.__class__.__name__,
'amount': self.amount,
'expiration': self.expiration,
'secrethash': encode_hex(self.secrethash),
}
def test_cooperative(
channel_manager: ChannelManager,
confirmed_open_channel: Channel,
receiver_address: str,
web3: Web3,
token_contract: Contract,
wait_for_blocks,
sender_address: str
):
blockchain = channel_manager.blockchain
channel_id = (confirmed_open_channel.sender, confirmed_open_channel.block)
sig1 = encode_hex(confirmed_open_channel.create_transfer(5))
channel_manager.register_payment(sender_address, confirmed_open_channel.block, 5, sig1)
receiver_sig = channel_manager.sign_close(sender_address, confirmed_open_channel.block, 5)
channel_rec = channel_manager.channels[channel_id]
assert channel_rec.is_closed is True
block_before = web3.eth.blockNumber
confirmed_open_channel.close_cooperatively(receiver_sig)
wait_for_blocks(blockchain.n_confirmations)
gevent.sleep(blockchain.poll_interval)
logs = get_logs(token_contract, 'Transfer', from_block=block_before - 1)
assert len([l for l in logs
if is_same_address(l['args']['_to'], receiver_address) and
l['args']['_value'] == 5]) == 1
assert len([l for l in logs
if is_same_address(l['args']['_to'], sender_address) and
l['args']['_value'] == 5]) == 1
wait_for_blocks(blockchain.n_confirmations)
gevent.sleep(blockchain.poll_interval)
assert channel_id not in channel_manager.channels
def test_static_price(
empty_proxy: PaywalledProxy,
api_endpoint_address: str,
client: Client,
wait_for_blocks
):
proxy = empty_proxy
endpoint_url = "http://" + api_endpoint_address
proxy.add_paywalled_resource(StaticPriceResource, '/resource', 3)
# test GET
response = requests.get(endpoint_url + '/resource')
assert response.status_code == 402
headers = HTTPHeaders.deserialize(response.headers)
assert int(headers.price) == 3
channel = client.get_suitable_channel(headers.receiver_address, int(headers.price) * 4)
wait_for_blocks(6)
channel.update_balance(int(headers.price))
headers = Munch()
headers.balance = str(channel.balance)
headers.balance_signature = encode_hex(channel.balance_sig)
headers.sender_address = channel.sender
headers.open_block = str(channel.block)
headers = HTTPHeaders.serialize(headers)
response = requests.get(endpoint_url + '/resource', headers=headers)
assert response.status_code == 200
assert response.text.strip() == 'GET'
assert_method(requests.post, endpoint_url + '/resource', headers, channel, 'POST')
assert_method(requests.put, endpoint_url + '/resource', headers, channel, 'PUT')
assert_method(requests.delete, endpoint_url + '/resource', headers, channel, 'DEL')
def send_transaction(
self,
to: Address,
value: int = 0,
data: bytes = b'',
startgas: int = None,
gasprice: int = None,
):
""" Helper to send signed messages.
This method will use the `privkey` provided in the constructor to
locally sign the transaction. This requires an extended server
implementation that accepts the variables v, r, and s.
"""
if to == to_canonical_address(NULL_ADDRESS):
warnings.warn('For contract creation the empty string must be used.')
transaction = dict(
nonce=self.nonce(),
gasPrice=gasprice or self.gasprice(),
gas=self.check_startgas(startgas),
value=value,
data=data,
)
# add the to address if not deploying a contract
if to != b'':
transaction['to'] = to_checksum_address(to)
signed_txn = self.web3.eth.account.signTransaction(transaction, self.privkey)
result = self.web3.eth.sendRawTransaction(signed_txn.rawTransaction)
encoded_result = encode_hex(result)
return remove_0x_prefix(encoded_result)
def test_balances(
channel_manager: ChannelManager,
confirmed_open_channel: Channel,
wait_for_blocks,
sender_address: str,
use_tester: bool
):
blockchain = channel_manager.blockchain
initial_liquid_balance = channel_manager.get_liquid_balance()
initial_locked_balance = channel_manager.get_locked_balance()
if use_tester:
assert initial_liquid_balance == 0
assert initial_locked_balance == 0
sig = encode_hex(confirmed_open_channel.create_transfer(5))
channel_manager.register_payment(sender_address, confirmed_open_channel.block, 5, sig)
assert channel_manager.get_liquid_balance() == initial_liquid_balance
assert channel_manager.get_locked_balance() == 5
receiver_sig = channel_manager.sign_close(sender_address, confirmed_open_channel.block, 5)
confirmed_open_channel.close_cooperatively(receiver_sig)
wait_for_blocks(blockchain.n_confirmations)
gevent.sleep(blockchain.poll_interval)
assert channel_manager.get_liquid_balance() == initial_liquid_balance + 5
assert channel_manager.get_locked_balance() == initial_locked_balance
def getStorageAt(self, address, position, at_block):
if not is_integer(position) or position < 0:
raise TypeError("Position of storage must be a whole number, but was: %r" % position)
with state_at_block(self._chain, at_block) as state:
stored_val = state.get_storage(address, position)
return encode_hex(int_to_big_endian(stored_val))
def test_explicit_json(
empty_proxy: PaywalledProxy,
api_endpoint_address: str,
client: Client,
wait_for_blocks
):
proxy = empty_proxy
endpoint_url = "http://" + api_endpoint_address
proxy.add_paywalled_resource(JSONResource, '/resource', 3)
# test GET
response = requests.get(endpoint_url + '/resource')
assert response.status_code == 402
headers = HTTPHeaders.deserialize(response.headers)
assert int(headers.price) == 3
channel = client.get_suitable_channel(headers.receiver_address, int(headers.price) * 4)
wait_for_blocks(6)
channel.update_balance(int(headers.price))
headers = Munch()
headers.balance = str(channel.balance)
headers.balance_signature = encode_hex(channel.balance_sig)
headers.sender_address = channel.sender
headers.open_block = str(channel.block)
headers = HTTPHeaders.serialize(headers)
response = requests.get(endpoint_url + '/resource', headers=headers)
assert response.status_code == 200
# If headers don't merge properly, this results in 'application/json,application/json'.
assert response.headers['Content-Type'] == 'application/json'
assert response.json() == {'GET': 1}
async def test_lightchain_integration(request, event_loop, caplog,
geth_ipc_path, enode, geth_process):
"""Test LightChainSyncer/LightPeerChain against a running geth instance.
In order to run this manually, you can use `tox -e py36-lightchain_integration` or:
pytest --integration --capture=no tests/trinity/integration/test_lightchain_integration.py
The fixture for this test was generated with:
geth --testnet --syncmode full
It only needs the first 11 blocks for this test to succeed.
"""
if not pytest.config.getoption("--integration"):
pytest.skip("Not asked to run integration tests")
# will almost certainly want verbose logging in a failure
caplog.set_level(logging.DEBUG)
# make sure geth has been launched
wait_for_socket(geth_ipc_path)
remote = Node.from_uri(enode)
base_db = MemoryDB()
chaindb = FakeAsyncChainDB(base_db)
chaindb.persist_header(ROPSTEN_GENESIS_HEADER)
headerdb = FakeAsyncHeaderDB(base_db)
peer_pool = PeerPool(
LESPeer,
FakeAsyncHeaderDB(base_db),
ROPSTEN_NETWORK_ID,
ecies.generate_privkey(),
ROPSTEN_VM_CONFIGURATION,
)
chain = FakeAsyncRopstenChain(base_db)
syncer = LightChainSyncer(chain, chaindb, peer_pool)
syncer.min_peers_to_sync = 1
peer_chain = LightPeerChain(headerdb, peer_pool)
asyncio.ensure_future(peer_pool.run())
asyncio.ensure_future(connect_to_peers_loop(peer_pool, tuple([remote])))
asyncio.ensure_future(peer_chain.run())
asyncio.ensure_future(syncer.run())
await asyncio.sleep(
0) # Yield control to give the LightChainSyncer a chance to start
def finalizer():
event_loop.run_until_complete(peer_pool.cancel())
event_loop.run_until_complete(peer_chain.cancel())
event_loop.run_until_complete(syncer.cancel())
request.addfinalizer(finalizer)
n = 11
# Wait for the chain to sync a few headers.
async def wait_for_header_sync(block_number):
while headerdb.get_canonical_head().block_number < block_number:
await asyncio.sleep(0.1)
await asyncio.wait_for(wait_for_header_sync(n), 5)
# https://ropsten.etherscan.io/block/11
header = headerdb.get_canonical_block_header_by_number(n)
body = await peer_chain.get_block_body_by_hash(header.hash)
assert len(body['transactions']) == 15
receipts = await peer_chain.get_receipts(header.hash)
assert len(receipts) == 15
assert encode_hex(keccak(rlp.encode(receipts[0]))) == (
'0xf709ed2c57efc18a1675e8c740f3294c9e2cb36ba7bb3b89d3ab4c8fef9d8860')
assert len(peer_pool) == 1
head_info = peer_pool.highest_td_peer.head_info
head = await peer_chain.get_block_header_by_hash(head_info.block_hash)
assert head.block_number == head_info.block_number
# In order to answer queries for contract code, geth needs the state trie entry for the block
# we specify in the query, but because of fast sync we can only assume it has that for recent
# blocks, so we use the current head to lookup the code for the contract below.
# https://ropsten.etherscan.io/address/0x95a48dca999c89e4e284930d9b9af973a7481287
contract_addr = decode_hex('0x8B09D9ac6A4F7778fCb22852e879C7F3B2bEeF81')
contract_code = await peer_chain.get_contract_code(head.hash,
contract_addr)
assert encode_hex(contract_code) == '0x600060006000600060006000356000f1'
account = await peer_chain.get_account(head.hash, contract_addr)
assert account.code_hash == keccak(contract_code)
assert account.balance == 0
def run_test(self):
priv_key = default_config["GENESIS_PRI_KEY"]
sender = eth_utils.encode_hex(priv_to_addr(priv_key))
self.rpc = RpcClient(self.nodes[0])
# apply filter, we expect no logs
filter = Filter(from_epoch="earliest", to_epoch="latest_mined")
result = self.rpc.get_logs(filter)
assert_equal(result, [])
# deploy contract
bytecode_file = os.path.join(
os.path.dirname(os.path.realpath(__file__)), CONTRACT_PATH)
assert (os.path.isfile(bytecode_file))
bytecode = open(bytecode_file).read()
_, contractAddr = self.deploy_contract(sender, priv_key, bytecode)
# apply filter, we expect a single log with 2 topics
filter = Filter(from_epoch="earliest", to_epoch="latest_mined")
logs0 = self.rpc.get_logs(filter)
self.assert_response_format_correct(logs0)
assert_equal(len(logs0), 1)
assert_equal(len(logs0[0]["topics"]), 2)
assert_equal(logs0[0]["topics"][0], CONSTRUCTED_TOPIC)
assert_equal(logs0[0]["topics"][1], self.address_to_topic(sender))
assert_equal(logs0[0]["data"], self.address_to_topic(sender))
# call method
receipt = self.call_contract(sender,
priv_key,
contractAddr,
encode_hex_0x(keccak(b"foo()")),
storage_limit=64)
# apply filter, we expect two logs with 2 and 3 topics respectively
filter = Filter(from_epoch="earliest", to_epoch="latest_mined")
logs1 = self.rpc.get_logs(filter)
self.assert_response_format_correct(logs1)
assert_equal(len(logs1), 2)
assert_equal(logs1[0], logs0[0])
assert_equal(len(logs1[1]["topics"]), 3)
assert_equal(logs1[1]["topics"][0], CALLED_TOPIC)
assert_equal(logs1[1]["topics"][1], self.address_to_topic(sender))
assert_equal(logs1[1]["topics"][2], self.number_to_topic(1))
# apply filter for specific block, we expect a single log with 3 topics
filter = Filter(block_hashes=[receipt["blockHash"]])
logs = self.rpc.get_logs(filter)
self.assert_response_format_correct(logs)
assert_equal(len(logs), 1)
assert_equal(logs[0], logs1[1])
# call many times
for ii in range(0, NUM_CALLS - 2):
self.call_contract(sender,
priv_key,
contractAddr,
encode_hex_0x(keccak(b"foo()")),
storage_limit=0)
# apply filter, we expect NUM_CALLS log entries with inreasing uint32 fields
filter = Filter(from_epoch="earliest", to_epoch="latest_mined")
logs = self.rpc.get_logs(filter)
self.assert_response_format_correct(logs)
assert_equal(len(logs), NUM_CALLS)
for ii in range(2, NUM_CALLS):
assert_equal(len(logs[ii]["topics"]), 3)
assert_equal(logs[ii]["topics"][0], CALLED_TOPIC)
assert (logs[ii]["topics"][1] == self.address_to_topic(sender))
assert_equal(logs[ii]["topics"][2], self.number_to_topic(ii))
# apply filter for specific topics
filter = Filter(topics=[CONSTRUCTED_TOPIC])
logs = self.rpc.get_logs(filter)
self.assert_response_format_correct(logs)
assert_equal(len(logs), 1)
filter = Filter(topics=[CALLED_TOPIC])
logs = self.rpc.get_logs(filter)
self.assert_response_format_correct(logs)
assert_equal(len(logs), NUM_CALLS - 1)
filter = Filter(topics=[None, self.address_to_topic(sender)])
logs = self.rpc.get_logs(filter)
self.assert_response_format_correct(logs)
assert_equal(len(logs), NUM_CALLS)
# find logs with `CALLED_TOPIC` as 1st topic and `3` or `4` as 3rd topic
filter = Filter(topics=[
CALLED_TOPIC, None,
[self.number_to_topic(3),
self.number_to_topic(4)]
])
logs = self.rpc.get_logs(filter)
self.assert_response_format_correct(logs)
assert_equal(len(logs), 2)
# apply filter with limit
filter = Filter(limit=("0x%x" % (NUM_CALLS // 2)))
logs = self.rpc.get_logs(filter)
self.assert_response_format_correct(logs)
assert_equal(len(logs), NUM_CALLS // 2)
# apply filter for specific contract address
_, contractAddr2 = self.deploy_contract(sender, priv_key, bytecode)
filter = Filter(address=[contractAddr])
logs = self.rpc.get_logs(filter)
self.assert_response_format_correct(logs)
assert_equal(len(logs), NUM_CALLS)
filter = Filter(address=[contractAddr2])
logs = self.rpc.get_logs(filter)
self.assert_response_format_correct(logs)
assert_equal(len(logs), 1)
# apply filter to very first epoch, we expect no logs
filter = Filter(from_epoch="0x0", to_epoch="0x0")
result = self.rpc.get_logs(filter)
assert_equal(result, [])
self.log.info("Pass")
def register_secret_batch(self, secrets: List[Secret]) -> List[TransactionHash]:
"""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()
secrets_results = 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 = sha256_secrethash(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)
secrets_results.append(other_result)
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
secrets_results.append(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
if secrets_to_register:
log_details = {"secrethashes_not_sent": secrethashes_not_sent}
self._register_secret_batch(secrets_to_register, transaction_result, log_details)
gevent.joinall(wait_for, raise_error=True)
return [result.get() for result in secrets_results]
def data_encoder(data: bytes, length: int = 0) -> str:
data = remove_0x_prefix(encode_hex(data))
return add_0x_prefix(
data.rjust(length * 2, b'0').decode(),
)
def generate_block_with_fake_txs(self, txs: list, adaptive=False, tx_data_len: int = 0) -> str:
encoded_txs = eth_utils.encode_hex(rlp.encode(txs))
block_hash = self.node.test_generateblockwithfaketxs(encoded_txs, adaptive, tx_data_len)
assert_is_hash_string(block_hash)
return block_hash
def rand_hash(self, seed: bytes = None) -> str:
if seed is None:
seed = os.urandom(32)
return eth_utils.encode_hex(sha3_256(seed))
def generate_blocks(self):
priv_key = default_config["GENESIS_PRI_KEY"]
sender = encode_hex(priv_to_addr(priv_key))
# deploy contract
bytecode_file = os.path.join(os.path.dirname(os.path.realpath(__file__)), CONTRACT_PATH)
assert(os.path.isfile(bytecode_file))
bytecode = open(bytecode_file).read()
_, contract_addr = self.deploy_contract(sender, priv_key, bytecode)
self.log.info("Contract deployed")
parent_hash = self.rpc[FULLNODE0].block_by_epoch("latest_mined")['hash']
nonce = self.rpc[FULLNODE0].get_nonce(sender)
hashes = []
num_events = 0
num_blamed = 0
for _ in range(0, NORMAL_CHAIN_LENGTH):
rnd = random.random()
# ~20% of all block have events
if rnd < 0.2:
tx = self.rpc[FULLNODE0].new_contract_tx(
receiver=contract_addr,
data_hex=encode_hex_0x(keccak(b"foo()")),
sender=sender, priv_key=priv_key,
storage_limit=64,
nonce = nonce
)
parent_hash = self.rpc[FULLNODE0].generate_custom_block(parent_hash=parent_hash, txs=[tx], referee=[])
nonce += 1
hashes.append(tx.hash_hex())
num_events += 1
# ~10% of all blocks are incorrect and blamed
elif rnd < 0.3:
blame_info = {}
blame_info['blame'] = "0x1"
blame_info['deferredStateRoot'] = "0x1111111111111111111111111111111111111111111111111111111111111111"
parent_hash = self.nodes[FULLNODE0].test_generateblockwithblameinfo(1, 0, blame_info)
num_blamed += 1
# the rest are empty
else:
parent_hash = self.rpc[FULLNODE0].generate_block_with_parent(parent_hash=parent_hash)
# TODO: generate blamed blocks with txs in them (overlap)
# generate a pivot chain section where we might not be able to decide blaming
# in this section, all headers will have blame=1
# odd-numbered blocks are incorrect, even-numbered blocks are correct
for _ in range(0, BLAMED_SECTION_LENGTH):
blame_info = {}
blame_info['blame'] = "0x1"
parent_hash = self.nodes[FULLNODE0].test_generateblockwithblameinfo(1, 0, blame_info)
num_blamed += BLAMED_SECTION_LENGTH // 2
# mine some more blocks to keep blame check offset
for _ in range(0, BLAMED_SECTION_LENGTH):
parent_hash = self.rpc[FULLNODE0].generate_custom_block(parent_hash=parent_hash, txs=[], referee=[])
# check if all txs have been executed successfully
for hash in hashes:
receipt = self.rpc[FULLNODE0].get_transaction_receipt(hash)
assert_equal(receipt["outcomeStatus"], "0x0")
length = NORMAL_CHAIN_LENGTH + 2 * BLAMED_SECTION_LENGTH
self.log.info(f"Generated {length} blocks with {num_events} events and {num_blamed} incorrect blocks")
def _serialize(self, value, attr, obj):
return encode_hex(value)
def geth_create_blockchain(
deploy_key,
web3,
private_keys,
blockchain_private_keys,
rpc_ports,
p2p_ports,
base_datadir,
verbosity,
random_marker,
genesis_path=None,
logdirectory=None,
):
# pylint: disable=too-many-locals,too-many-statements,too-many-arguments,too-many-branches
nodes_configuration = []
key_p2p_rpc = zip(blockchain_private_keys, p2p_ports, rpc_ports)
for pos, (key, p2p_port, rpc_port) in enumerate(key_p2p_rpc):
config = dict()
address = privatekey_to_address(key)
# make the first node miner
if pos == 0:
config['unlock'] = 0
config['nodekey'] = key
config['nodekeyhex'] = remove_0x_prefix(encode_hex(key))
config['pub'] = remove_0x_prefix(encode_hex(privtopub(key)))
config['address'] = address
config['port'] = p2p_port
config['rpcport'] = rpc_port
config['enode'] = 'enode://{pub}@127.0.0.1:{port}'.format(
pub=config['pub'],
port=config['port'],
)
nodes_configuration.append(config)
for config in nodes_configuration:
config['bootnodes'] = ','.join(node['enode']
for node in nodes_configuration)
all_keys = set(private_keys)
all_keys.add(deploy_key)
all_keys = sorted(all_keys)
cmds = []
for i, config in enumerate(nodes_configuration):
# HACK: Use only the first 8 characters to avoid golang's issue
# https://github.com/golang/go/issues/6895 (IPC bind fails with path
# longer than 108 characters).
# BSD (and therefore macOS) socket path length limit is 104 chars
nodekey_part = config['nodekeyhex'][:8]
nodedir = os.path.join(base_datadir, nodekey_part)
node_genesis_path = os.path.join(nodedir, 'custom_genesis.json')
assert len(nodedir + '/geth.ipc') <= 104, 'geth data path is too large'
os.makedirs(nodedir)
if genesis_path is None:
geth_bare_genesis(node_genesis_path, all_keys, random_marker)
else:
shutil.copy(genesis_path, node_genesis_path)
geth_init_datadir(nodedir, node_genesis_path)
if 'unlock' in config:
geth_create_account(nodedir, all_keys[i])
commandline = geth_to_cmd(config, nodedir, verbosity)
cmds.append(commandline)
# save current term settings before running geth
if isinstance(
sys.stdin,
io.IOBase): # check that the test is running on non-capture mode
term_settings = termios.tcgetattr(sys.stdin)
stdout = None
stderr = None
processes_list = []
for pos, cmd in enumerate(cmds):
if logdirectory:
log_path = os.path.join(logdirectory, str(pos))
logfile = open(log_path, 'w')
stdout = logfile
stderr = logfile
if '--unlock' in cmd:
cmd.append('--mine')
process = subprocess.Popen(
cmd,
universal_newlines=True,
stdin=subprocess.PIPE,
stdout=stdout,
stderr=stderr,
)
# --password wont work, write password to unlock
process.stdin.write(DEFAULT_PASSPHRASE + os.linesep) # Passphrase:
process.stdin.write(DEFAULT_PASSPHRASE +
os.linesep) # Repeat passphrase:
else:
process = subprocess.Popen(
cmd,
universal_newlines=True,
stdout=stdout,
stderr=stderr,
)
processes_list.append(process)
try:
geth_wait_and_check(web3, private_keys, random_marker)
for process in processes_list:
process.poll()
if process.returncode is not None:
raise ValueError('geth failed to start')
except (ValueError, RuntimeError) as e:
# If geth_wait_and_check or the above loop throw an exception make sure
# we don't end up with a rogue geth process running in the background
for process in processes_list:
process.terminate()
raise e
finally:
# reenter echo mode (disabled by geth pasphrase prompt)
if isinstance(sys.stdin, io.IOBase):
termios.tcsetattr(sys.stdin, termios.TCSADRAIN, term_settings)
return processes_list
def sign_as_hex(text2sign, priv_key):
"""see pyethereum ecsign"""
pk = coincurve.PrivateKey(normalize_key(priv_key))
signature = pk.sign_recoverable(eth_text2sign(text2sign), hasher=None)
return encode_hex(signature)
def pubtoaddr(public_key):
raw_pub_key = decode_hex(public_key)
return encode_hex(sha3(raw_pub_key)[12:]).lower()
def test_payment_channel_proxy_basics(
token_network_proxy,
private_keys,
token_proxy,
chain_id,
web3,
contract_manager,
skip_if_parity,
):
token_network_address = to_canonical_address(
token_network_proxy.proxy.contract.address)
c1_client = JSONRPCClient(web3, private_keys[1])
c1_chain = BlockChainService(
jsonrpc_client=c1_client,
contract_manager=contract_manager,
)
c2_client = JSONRPCClient(web3, private_keys[2])
c1_token_network_proxy = TokenNetwork(
jsonrpc_client=c1_client,
token_network_address=token_network_address,
contract_manager=contract_manager,
)
c2_token_network_proxy = TokenNetwork(
jsonrpc_client=c2_client,
token_network_address=token_network_address,
contract_manager=contract_manager,
)
start_block = web3.eth.blockNumber
# create a channel
channel_identifier = c1_token_network_proxy.new_netting_channel(
partner=c2_client.address,
settle_timeout=TEST_SETTLE_TIMEOUT_MIN,
given_block_identifier='latest',
)
assert channel_identifier is not None
# create channel proxies
channel_proxy_1 = PaymentChannel(
token_network=c1_token_network_proxy,
channel_identifier=channel_identifier,
contract_manager=contract_manager,
)
channel_proxy_2 = PaymentChannel(
token_network=c2_token_network_proxy,
channel_identifier=channel_identifier,
contract_manager=contract_manager,
)
channel_filter = channel_proxy_1.all_events_filter(
from_block=start_block,
to_block='latest',
)
assert channel_proxy_1.channel_identifier == channel_identifier
assert channel_proxy_2.channel_identifier == channel_identifier
assert channel_proxy_1.opened('latest') is True
assert channel_proxy_2.opened('latest') is True
# check the settlement timeouts
assert channel_proxy_1.settle_timeout() == channel_proxy_2.settle_timeout()
assert channel_proxy_1.settle_timeout() == TEST_SETTLE_TIMEOUT_MIN
events = channel_filter.get_all_entries()
assert len(events) == 1 # ChannelOpened
# test deposits
initial_token_balance = 100
token_proxy.transfer(c1_client.address, initial_token_balance, 'latest')
initial_balance_c1 = token_proxy.balance_of(c1_client.address)
assert initial_balance_c1 == initial_token_balance
initial_balance_c2 = token_proxy.balance_of(c2_client.address)
assert initial_balance_c2 == 0
# actual deposit
channel_proxy_1.set_total_deposit(total_deposit=10,
block_identifier='latest')
events = channel_filter.get_all_entries()
assert len(events) == 2 # ChannelOpened, ChannelNewDeposit
# balance proof by c2
transferred_amount = 3
balance_proof = BalanceProof(
channel_identifier=channel_identifier,
token_network_address=to_checksum_address(token_network_address),
nonce=1,
chain_id=chain_id,
transferred_amount=transferred_amount,
)
balance_proof.signature = encode_hex(
LocalSigner(private_keys[1]).sign(
data=balance_proof.serialize_bin(), ), )
# correct close
c2_token_network_proxy.close(
channel_identifier=channel_identifier,
partner=c1_client.address,
balance_hash=decode_hex(balance_proof.balance_hash),
nonce=balance_proof.nonce,
additional_hash=decode_hex(balance_proof.additional_hash),
signature=decode_hex(balance_proof.signature),
given_block_identifier='latest',
)
assert channel_proxy_1.closed('latest') is True
assert channel_proxy_2.closed('latest') is True
events = channel_filter.get_all_entries()
assert len(events) == 3 # ChannelOpened, ChannelNewDeposit, ChannelClosed
# check the settlement timeouts again
assert channel_proxy_1.settle_timeout() == channel_proxy_2.settle_timeout()
assert channel_proxy_1.settle_timeout() == TEST_SETTLE_TIMEOUT_MIN
# update transfer
c1_chain.wait_until_block(target_block_number=c1_client.block_number() +
TEST_SETTLE_TIMEOUT_MIN, )
c2_token_network_proxy.settle(
channel_identifier=channel_identifier,
transferred_amount=0,
locked_amount=0,
locksroot=EMPTY_HASH,
partner=c1_client.address,
partner_transferred_amount=transferred_amount,
partner_locked_amount=0,
partner_locksroot=EMPTY_HASH,
given_block_identifier='latest',
)
assert channel_proxy_1.settled('latest') is True
assert channel_proxy_2.settled('latest') is True
events = channel_filter.get_all_entries()
assert len(
events
) == 4 # ChannelOpened, ChannelNewDeposit, ChannelClosed, ChannelSettled
def get_transaction_receipt(self, tx_hash: bytes):
return self.web3.eth.getTransactionReceipt(encode_hex(tx_hash))
def session_id(self) -> str:
"""Session ID as used for OneToN.settled_sessions"""
return encode_hex(
keccak(self.receiver + self.sender + encode_single("uint256", self.claimable_until))
)
def random_private_key(bound):
"""Randomly gnerate a private key smaller than a certain bound."""
n = random.randint(1, bound) # nosec
private_key = encode_hex(pad_left(int_to_big_endian(n), 32, '\0'))
return private_key
def _block_to_dict(self, block):
logs_bloom = encode_hex(int_to_big_endian(block.header.bloom))[2:]
logs_bloom = '0x' + logs_bloom.rjust(512, '0')
return {
"difficulty": hex(block.header.difficulty),
"extraData": encode_hex(block.header.extra_data),
"gasLimit": hex(block.header.gas_limit),
"gasUsed": hex(block.header.gas_used),
"hash": encode_hex(block.header.hash),
"logsBloom": logs_bloom,
"mixHash": encode_hex(block.header.mix_hash),
"nonce": encode_hex(block.header.nonce),
"number": hex(block.header.block_number),
"parentHash": encode_hex(block.header.parent_hash),
"receiptsRoot": encode_hex(block.header.receipt_root),
"sha3Uncles": encode_hex(block.header.uncles_hash),
"stateRoot": encode_hex(block.header.state_root),
"timestamp": hex(block.header.timestamp),
"totalDifficulty": hex(self.chain.chaindb.get_score(block.hash)),
"transactions": [encode_hex(tx.hash) for tx in block.transactions],
"transactionsRoot": encode_hex(block.header.transaction_root),
"uncles": [encode_hex(uncle.hash) for uncle in block.uncles],
"size": hex(len(rlp.encode(block))),
"miner": encode_hex(block.header.coinbase),
}
def __str__(self):
return "HeadInfo{{block:{}, hash:{}, td:{}, reorg_depth:{}}}".format(
self.block_number, encode_hex(self.block_hash), self.total_difficulty,
self.reorg_depth)
def format_integer(value, sedes):
return encode_hex(sedes.serialize(value))
def hexbytes_to_str(map_: Dict):
""" Converts values that are of type `HexBytes` to strings. """
for k, v in map_.items():
if isinstance(v, HexBytes):
map_[k] = encode_hex(v)
def add(self, node_id: NodeID) -> None:
if node_id not in self:
self.logger.debug("Adding entry %s", encode_hex(node_id))
self.entries.appendleft(node_id)
else:
raise ValueError(f"Entry {encode_hex(node_id)} already present in the routing table")
def run_app(
address,
keystore_path,
gas_price,
eth_rpc_endpoint,
tokennetwork_registry_contract_address,
secret_registry_contract_address,
endpoint_registry_contract_address,
listen_address,
mapped_socket,
max_unresponsive_time,
api_address,
rpc,
sync_check,
console,
password_file,
web_ui,
datadir,
transport,
matrix_server,
network_id,
environment_type,
unrecoverable_error_should_crash,
config=None,
extra_config=None,
**kwargs,
):
# pylint: disable=too-many-locals,too-many-branches,too-many-statements,unused-argument
from raiden.app import App
_assert_sql_version()
if transport == 'udp' and not mapped_socket:
raise RuntimeError('Missing socket')
if datadir is None:
datadir = os.path.join(os.path.expanduser('~'), '.raiden')
address_hex = to_normalized_address(address) if address else None
address_hex, privatekey_bin = prompt_account(address_hex, keystore_path, password_file)
address = to_canonical_address(address_hex)
(listen_host, listen_port) = split_endpoint(listen_address)
(api_host, api_port) = split_endpoint(api_address)
config['transport']['udp']['host'] = listen_host
config['transport']['udp']['port'] = listen_port
config['console'] = console
config['rpc'] = rpc
config['web_ui'] = rpc and web_ui
config['api_host'] = api_host
config['api_port'] = api_port
if mapped_socket:
config['socket'] = mapped_socket.socket
config['transport']['udp']['external_ip'] = mapped_socket.external_ip
config['transport']['udp']['external_port'] = mapped_socket.external_port
config['transport_type'] = transport
config['transport']['matrix']['server'] = matrix_server
config['transport']['udp']['nat_keepalive_retries'] = DEFAULT_NAT_KEEPALIVE_RETRIES
timeout = max_unresponsive_time / DEFAULT_NAT_KEEPALIVE_RETRIES
config['transport']['udp']['nat_keepalive_timeout'] = timeout
config['privatekey_hex'] = encode_hex(privatekey_bin)
config['unrecoverable_error_should_crash'] = unrecoverable_error_should_crash
parsed_eth_rpc_endpoint = urlparse(eth_rpc_endpoint)
if not parsed_eth_rpc_endpoint.scheme:
eth_rpc_endpoint = f'http://{eth_rpc_endpoint}'
web3 = _setup_web3(eth_rpc_endpoint)
rpc_client = JSONRPCClient(
web3,
privatekey_bin,
gas_price_strategy=gas_price,
block_num_confirmations=DEFAULT_NUMBER_OF_BLOCK_CONFIRMATIONS,
uses_infura='infura.io' in eth_rpc_endpoint,
)
blockchain_service = BlockChainService(
privatekey_bin=privatekey_bin,
jsonrpc_client=rpc_client,
# Not giving the contract manager here, but injecting it later
# since we first need blockchain service to calculate the network id
)
if network_id == 1:
# temporarily until red eyes disallow raiden on the mainnet
click.secho(
'Running Raiden on the mainnet is currently not supported.',
fg='red',
)
sys.exit(1)
given_network_id = network_id
node_network_id = blockchain_service.network_id
known_given_network_id = given_network_id in ID_TO_NETWORKNAME
known_node_network_id = node_network_id in ID_TO_NETWORKNAME
if node_network_id != given_network_id:
if known_given_network_id and known_node_network_id:
click.secho(
f"The chosen ethereum network '{ID_TO_NETWORKNAME[given_network_id]}' "
f"differs from the ethereum client '{ID_TO_NETWORKNAME[node_network_id]}'. "
"Please update your settings.",
fg='red',
)
else:
click.secho(
f"The chosen ethereum network id '{given_network_id}' differs "
f"from the ethereum client '{node_network_id}'. "
"Please update your settings.",
fg='red',
)
sys.exit(1)
config['chain_id'] = given_network_id
# interpret the provided string argument
if environment_type == Environment.PRODUCTION:
# Safe configuration: restrictions for mainnet apply and matrix rooms have to be private
config['environment_type'] = Environment.PRODUCTION
config['transport']['matrix']['private_rooms'] = True
else:
config['environment_type'] = Environment.DEVELOPMENT
environment_type = config['environment_type']
print(f'Raiden is running in {environment_type.value.lower()} mode')
chain_config = {}
contract_addresses_known = False
contracts = dict()
config['contracts_path'] = contracts_precompiled_path()
if node_network_id in ID_TO_NETWORKNAME and ID_TO_NETWORKNAME[node_network_id] != 'smoketest':
contracts_version = 'pre_limits' if environment_type == Environment.DEVELOPMENT else None
deployment_data = get_contracts_deployed(node_network_id, contracts_version)
config['contracts_path'] = contracts_precompiled_path(contracts_version)
not_allowed = ( # for now we only disallow mainnet with test configuration
network_id == 1 and
environment_type == Environment.DEVELOPMENT
)
if not_allowed:
click.secho(
f'The chosen network ({ID_TO_NETWORKNAME[node_network_id]}) is not a testnet, '
'but the "development" environment was selected.\n'
'This is not allowed. Please start again with a safe environment setting '
'(--environment production).',
fg='red',
)
sys.exit(1)
contracts = deployment_data['contracts']
contract_addresses_known = True
blockchain_service.inject_contract_manager(ContractManager(config['contracts_path']))
if sync_check:
check_synced(blockchain_service, known_node_network_id)
contract_addresses_given = (
tokennetwork_registry_contract_address is not None and
secret_registry_contract_address is not None and
endpoint_registry_contract_address is not None
)
if not contract_addresses_given and not contract_addresses_known:
click.secho(
f"There are no known contract addresses for network id '{given_network_id}'. "
"Please provide them on the command line or in the configuration file.",
fg='red',
)
sys.exit(1)
try:
token_network_registry = blockchain_service.token_network_registry(
tokennetwork_registry_contract_address or to_canonical_address(
contracts[CONTRACT_TOKEN_NETWORK_REGISTRY]['address'],
),
)
except ContractVersionMismatch as e:
handle_contract_version_mismatch(e)
except AddressWithoutCode:
handle_contract_no_code('token network registry', tokennetwork_registry_contract_address)
except AddressWrongContract:
handle_contract_wrong_address(
'token network registry',
tokennetwork_registry_contract_address,
)
try:
secret_registry = blockchain_service.secret_registry(
secret_registry_contract_address or to_canonical_address(
contracts[CONTRACT_SECRET_REGISTRY]['address'],
),
)
except ContractVersionMismatch as e:
handle_contract_version_mismatch(e)
except AddressWithoutCode:
handle_contract_no_code('secret registry', secret_registry_contract_address)
except AddressWrongContract:
handle_contract_wrong_address('secret registry', secret_registry_contract_address)
database_path = os.path.join(
datadir,
f'node_{pex(address)}',
f'netid_{given_network_id}',
f'network_{pex(token_network_registry.address)}',
f'v{RAIDEN_DB_VERSION}_log.db',
)
config['database_path'] = database_path
print(
'\nYou are connected to the \'{}\' network and the DB path is: {}'.format(
ID_TO_NETWORKNAME.get(given_network_id, given_network_id),
database_path,
),
)
discovery = None
if transport == 'udp':
transport, discovery = _setup_udp(
config,
blockchain_service,
address,
contracts,
endpoint_registry_contract_address,
)
elif transport == 'matrix':
transport = _setup_matrix(config)
else:
raise RuntimeError(f'Unknown transport type "{transport}" given')
raiden_event_handler = RaidenEventHandler()
message_handler = MessageHandler()
try:
if 'contracts' in chain_config:
start_block = chain_config['contracts']['TokenNetworkRegistry']['block_number']
else:
start_block = 0
raiden_app = App(
config=config,
chain=blockchain_service,
query_start_block=start_block,
default_registry=token_network_registry,
default_secret_registry=secret_registry,
transport=transport,
raiden_event_handler=raiden_event_handler,
message_handler=message_handler,
discovery=discovery,
)
except RaidenError as e:
click.secho(f'FATAL: {e}', fg='red')
sys.exit(1)
try:
raiden_app.start()
except RuntimeError as e:
click.secho(f'FATAL: {e}', fg='red')
sys.exit(1)
except filelock.Timeout:
name_or_id = ID_TO_NETWORKNAME.get(given_network_id, given_network_id)
click.secho(
f'FATAL: Another Raiden instance already running for account {address_hex} on '
f'network id {name_or_id}',
fg='red',
)
sys.exit(1)
return raiden_app
def encode_byte_values(map_: Dict):
""" Converts values that are of type `bytes` to strings. """
for k, v in map_.items():
if isinstance(v, bytes):
map_[k] = encode_hex(v)
def close(
self,
channel_identifier: typing.ChannelID,
partner: typing.Address,
balance_hash: typing.BalanceHash,
nonce: typing.Nonce,
additional_hash: typing.AdditionalHash,
signature: typing.Signature,
):
""" Close the channel using the provided balance proof.
Raises:
ChannelBusyError: If the channel is busy with another operation.
ChannelIncorrectStateError: If the channel is not in the open state.
"""
log_details = {
'token_network': pex(self.address),
'node': pex(self.node_address),
'partner': pex(partner),
'nonce': nonce,
'balance_hash': encode_hex(balance_hash),
'additional_hash': encode_hex(additional_hash),
'signature': encode_hex(signature),
}
log.info('close called', **log_details)
self._check_for_outdated_channel(
self.node_address,
partner,
channel_identifier,
)
if not self.channel_is_opened(self.node_address, partner,
channel_identifier):
raise ChannelIncorrectStateError(
'Channel is not in an opened state. It cannot be closed.', )
with self.channel_operations_lock[partner]:
transaction_hash = self.proxy.transact(
'closeChannel',
channel_identifier,
partner,
balance_hash,
nonce,
additional_hash,
signature,
)
self.client.poll(transaction_hash)
receipt_or_none = check_transaction_threw(self.client,
transaction_hash)
if receipt_or_none:
log.critical('close failed', **log_details)
if not self.channel_is_opened(self.node_address, partner,
channel_identifier):
raise ChannelIncorrectStateError(
'Channel is not in an opened state. It cannot be closed.',
)
raise TransactionThrew('Close', receipt_or_none)
log.info('close successful', **log_details)
def rand_account(self) -> (str, bytes):
priv_key = eth_utils.encode_hex(os.urandom(32))
addr = eth_utils.encode_hex(priv_to_addr(priv_key))
return (addr, priv_key)
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 = {
'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.info('settle called', **log_details)
self._check_for_outdated_channel(
self.node_address,
partner,
channel_identifier,
)
with self.channel_operations_lock[partner]:
if self._verify_settle_state(
transferred_amount,
locked_amount,
locksroot,
partner,
partner_transferred_amount,
partner_locked_amount,
partner_locksroot,
) is False:
raise ChannelIncorrectStateError(
'local state can not be used to call settle')
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:
transaction_hash = self.proxy.transact(
'settleChannel',
channel_identifier,
partner,
partner_transferred_amount,
partner_locked_amount,
partner_locksroot,
self.node_address,
transferred_amount,
locked_amount,
locksroot,
)
else:
transaction_hash = self.proxy.transact(
'settleChannel',
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:
channel_exists = self.channel_exists_and_not_settled(
self.node_address,
partner,
channel_identifier,
)
if not channel_exists:
log.info('settle failed, channel already settled',
**log_details)
raise ChannelIncorrectStateError(
'Channel already settled or non-existent', )
channel_closed = self.channel_is_closed(
participant1=self.node_address,
participant2=partner,
channel_identifier=channel_identifier,
)
if channel_closed is False:
log.info('settle failed, channel is not closed',
**log_details)
raise ChannelIncorrectStateError(
'Channel is not in a closed state. It cannot be settled',
)
log.info('settle failed', **log_details)
raise TransactionThrew('Settle', receipt_or_none)
log.info('settle successful', **log_details)
def pex(data: bytes) -> str:
return remove_0x_prefix(encode_hex(data))[:8]
def _request_resource(
self,
method: str,
url: str,
**kwargs
) -> Tuple[Union[None, Response], bool]:
"""
Performs a simple GET request to the HTTP server with headers representing the given
channel state.
"""
headers = Munch()
headers.contract_address = self.client.context.channel_manager.address
if self.channel is not None:
headers.balance = str(self.channel.balance)
headers.balance_signature = encode_hex(self.channel.balance_sig)
headers.sender_address = self.channel.sender
headers.receiver_address = self.channel.receiver
headers.open_block = str(self.channel.block)
headers = HTTPHeaders.serialize(headers)
if 'headers' in kwargs:
headers.update(kwargs['headers'])
kwargs['headers'] = headers
else:
kwargs['headers'] = headers
response = requests.Session.request(self, method, url, **kwargs)
if self.on_http_response(method, url, response, **kwargs) is False:
return response, False # user requested abort
if response.status_code == requests.codes.OK:
return response, self.on_success(method, url, response, **kwargs)
elif response.status_code == requests.codes.PAYMENT_REQUIRED:
if HTTPHeaders.NONEXISTING_CHANNEL in response.headers:
return response, self.on_nonexisting_channel(method, url, response, **kwargs)
elif HTTPHeaders.INSUF_CONFS in response.headers:
return response, self.on_insufficient_confirmations(
method,
url,
response,
**kwargs
)
elif HTTPHeaders.INSUF_FUNDS in response.headers:
return response, self.on_insufficient_funds(method, url, response, **kwargs)
elif HTTPHeaders.CONTRACT_ADDRESS not in response.headers or not is_same_address(
response.headers.get(HTTPHeaders.CONTRACT_ADDRESS),
self.client.context.channel_manager.address
):
return response, self.on_invalid_contract_address(method, url, response, **kwargs)
elif HTTPHeaders.INVALID_AMOUNT in response.headers:
return response, self.on_invalid_amount(method, url, response, **kwargs)
else:
return response, self.on_payment_requested(method, url, response, **kwargs)
else:
return response, self.on_http_error(method, url, response, **kwargs)
def test_payment_channel_outdated_channel_close(
token_network_proxy,
private_keys,
chain_id,
web3,
contract_manager,
skip_if_parity,
):
token_network_address = to_canonical_address(
token_network_proxy.proxy.contract.address)
partner = privatekey_to_address(private_keys[0])
client = JSONRPCClient(web3, private_keys[1])
chain = BlockChainService(
jsonrpc_client=client,
contract_manager=contract_manager,
)
token_network_proxy = TokenNetwork(
jsonrpc_client=client,
token_network_address=token_network_address,
contract_manager=contract_manager,
)
start_block = web3.eth.blockNumber
# create a channel
channel_identifier = token_network_proxy.new_netting_channel(
partner=partner,
settle_timeout=TEST_SETTLE_TIMEOUT_MIN,
given_block_identifier='latest',
)
assert channel_identifier is not None
# create channel proxies
channel_proxy_1 = PaymentChannel(
token_network=token_network_proxy,
channel_identifier=channel_identifier,
contract_manager=contract_manager,
)
channel_filter = channel_proxy_1.all_events_filter(
from_block=start_block,
to_block='latest',
)
assert channel_proxy_1.channel_identifier == channel_identifier
assert channel_proxy_1.opened('latest') is True
# balance proof by c1
balance_proof = BalanceProof(
channel_identifier=channel_identifier,
token_network_address=to_checksum_address(token_network_address),
nonce=0,
chain_id=chain_id,
transferred_amount=0,
)
balance_proof.signature = encode_hex(
LocalSigner(private_keys[0]).sign(
data=balance_proof.serialize_bin(), ), )
# correct close
token_network_proxy.close(
channel_identifier=channel_identifier,
partner=partner,
balance_hash=bytes(32),
nonce=balance_proof.nonce,
additional_hash=bytes(32),
signature=decode_hex(balance_proof.signature),
given_block_identifier='latest',
)
assert channel_proxy_1.closed('latest') is True
events = channel_filter.get_all_entries()
assert len(events) == 2 # ChannelOpened, ChannelClosed
# check the settlement timeouts again
assert channel_proxy_1.settle_timeout() == TEST_SETTLE_TIMEOUT_MIN
# update transfer
chain.wait_until_block(target_block_number=client.block_number() +
TEST_SETTLE_TIMEOUT_MIN)
token_network_proxy.settle(
channel_identifier=channel_identifier,
transferred_amount=0,
locked_amount=0,
locksroot=EMPTY_HASH,
partner=partner,
partner_transferred_amount=0,
partner_locked_amount=0,
partner_locksroot=EMPTY_HASH,
given_block_identifier='latest',
)
assert channel_proxy_1.settled('latest') is True
events = channel_filter.get_all_entries()
assert len(events) == 3 # ChannelOpened, ChannelClosed, ChannelSettled
# Create a new channel with a different identifier
# create a channel
new_channel_identifier = token_network_proxy.new_netting_channel(
partner=partner,
settle_timeout=TEST_SETTLE_TIMEOUT_MIN,
given_block_identifier='latest',
)
assert new_channel_identifier is not None
# create channel proxies
channel_proxy_2 = PaymentChannel(
token_network=token_network_proxy,
channel_identifier=new_channel_identifier,
contract_manager=contract_manager,
)
assert channel_proxy_2.channel_identifier == new_channel_identifier
assert channel_proxy_2.opened('latest') is True
with pytest.raises(ChannelOutdatedError):
token_network_proxy.close(
channel_identifier=channel_identifier,
partner=partner,
balance_hash=bytes(32),
nonce=balance_proof.nonce,
additional_hash=bytes(32),
signature=decode_hex(balance_proof.signature),
given_block_identifier='latest',
)
def test_token_network_proxy_update_transfer(
token_network_proxy,
private_keys,
blockchain_rpc_ports,
token_proxy,
chain_id,
web3,
):
"""Tests channel lifecycle, with `update_transfer` before settling"""
token_network_address = to_canonical_address(
token_network_proxy.proxy.contract.address)
c1_client = JSONRPCClient(
'0.0.0.0',
blockchain_rpc_ports[0],
private_keys[1],
web3=web3,
)
c2_client = JSONRPCClient(
'0.0.0.0',
blockchain_rpc_ports[0],
private_keys[2],
web3=web3,
)
c1_token_network_proxy = TokenNetwork(
c1_client,
token_network_address,
)
c2_token_network_proxy = TokenNetwork(
c2_client,
token_network_address,
)
# create a channel
channel_identifier = c1_token_network_proxy.new_netting_channel(
c2_client.sender,
TEST_SETTLE_TIMEOUT_MIN,
)
# deposit to the channel
initial_balance = 100
token_proxy.transfer(c1_client.sender, initial_balance)
token_proxy.transfer(c2_client.sender, initial_balance)
initial_balance_c1 = token_proxy.balance_of(c1_client.sender)
assert initial_balance_c1 == initial_balance
initial_balance_c2 = token_proxy.balance_of(c2_client.sender)
assert initial_balance_c2 == initial_balance
c1_token_network_proxy.set_total_deposit(
10,
c2_client.sender,
)
c2_token_network_proxy.set_total_deposit(
10,
c1_client.sender,
)
# balance proof signed by c1
transferred_amount_c1 = 1
transferred_amount_c2 = 3
balance_proof_c1 = BalanceProof(
channel_identifier=encode_hex(channel_identifier),
token_network_address=to_checksum_address(token_network_address),
nonce=1,
chain_id=chain_id,
transferred_amount=transferred_amount_c1,
)
balance_proof_c1.signature = encode_hex(
sign_data(encode_hex(private_keys[1]),
balance_proof_c1.serialize_bin()), )
# balance proof signed by c2
balance_proof_c2 = BalanceProof(
channel_identifier=encode_hex(channel_identifier),
token_network_address=to_checksum_address(token_network_address),
nonce=2,
chain_id=chain_id,
transferred_amount=transferred_amount_c2,
)
balance_proof_c2.signature = encode_hex(
sign_data(encode_hex(private_keys[2]),
balance_proof_c2.serialize_bin()), )
# close by c1
c1_token_network_proxy.close(
c2_client.sender,
balance_proof_c2.nonce,
decode_hex(balance_proof_c2.balance_hash),
decode_hex(balance_proof_c2.additional_hash),
decode_hex(balance_proof_c2.signature),
)
# using invalid non-closing signature
# Usual mistake when calling update Transfer - balance proof signature is missing in the data
non_closing_data = balance_proof_c1.serialize_bin()
non_closing_signature = sign_data(
encode_hex(c2_client.privkey),
non_closing_data,
)
with pytest.raises(TransactionThrew):
c2_token_network_proxy.update_transfer(
c1_client.sender,
balance_proof_c1.nonce,
decode_hex(balance_proof_c1.balance_hash),
decode_hex(balance_proof_c1.additional_hash),
decode_hex(balance_proof_c1.signature),
non_closing_signature,
)
non_closing_data = balance_proof_c1.serialize_bin() + decode_hex(
balance_proof_c1.signature)
non_closing_signature = sign_data(
encode_hex(c2_client.privkey),
non_closing_data,
)
c2_token_network_proxy.update_transfer(
c1_client.sender,
balance_proof_c1.nonce,
decode_hex(balance_proof_c1.balance_hash),
decode_hex(balance_proof_c1.additional_hash),
decode_hex(balance_proof_c1.signature),
non_closing_signature,
)
wait_blocks(c1_client.web3, TEST_SETTLE_TIMEOUT_MIN)
# settling with an invalid amount
with pytest.raises(TransactionThrew):
c1_token_network_proxy.settle(
2,
0,
EMPTY_HASH,
c2_client.sender,
2,
0,
EMPTY_HASH,
)
# proper settle
c1_token_network_proxy.settle(
transferred_amount_c1,
0,
EMPTY_HASH,
c2_client.sender,
transferred_amount_c2,
0,
EMPTY_HASH,
)
assert (token_proxy.balance_of(
c2_client.sender) == (initial_balance_c2 + transferred_amount_c1 -
transferred_amount_c2))
assert (token_proxy.balance_of(
c1_client.sender) == (initial_balance_c1 + transferred_amount_c2 -
transferred_amount_c1))
def test_token_network_proxy_basics(
token_network_proxy,
private_keys,
blockchain_rpc_ports,
token_proxy,
chain_id,
web3,
):
# check settlement timeouts
assert token_network_proxy.settlement_timeout_min(
) == TEST_SETTLE_TIMEOUT_MIN
assert token_network_proxy.settlement_timeout_max(
) == TEST_SETTLE_TIMEOUT_MAX
token_network_address = to_canonical_address(
token_network_proxy.proxy.contract.address)
c1_client = JSONRPCClient(
'0.0.0.0',
blockchain_rpc_ports[0],
private_keys[1],
web3=web3,
)
c2_client = JSONRPCClient(
'0.0.0.0',
blockchain_rpc_ports[0],
private_keys[2],
web3=web3,
)
c1_token_network_proxy = TokenNetwork(
c1_client,
token_network_address,
)
c2_token_network_proxy = TokenNetwork(
c2_client,
token_network_address,
)
# instantiating a new channel - test basic assumptions
assert c1_token_network_proxy.channel_exists(c1_client.sender,
c2_client.sender) is False
assert c1_token_network_proxy.channel_is_opened(c1_client.sender,
c2_client.sender) is False
assert c1_token_network_proxy.channel_is_closed(c1_client.sender,
c2_client.sender) is False
# test timeout limits
with pytest.raises(InvalidSettleTimeout):
c1_token_network_proxy.new_netting_channel(
c2_client.sender,
TEST_SETTLE_TIMEOUT_MIN - 1,
)
with pytest.raises(InvalidSettleTimeout):
c1_token_network_proxy.new_netting_channel(
c2_client.sender,
TEST_SETTLE_TIMEOUT_MAX + 1,
)
# channel to self
with pytest.raises(SamePeerAddress):
c1_token_network_proxy.new_netting_channel(
c1_client.sender,
TEST_SETTLE_TIMEOUT_MIN,
)
# actually create a channel
channel_identifier = c1_token_network_proxy.new_netting_channel(
c2_client.sender,
TEST_SETTLE_TIMEOUT_MIN,
)
assert channel_identifier is not None
# multiple channels with the same peer are not allowed
with pytest.raises(DuplicatedChannelError):
c1_token_network_proxy.new_netting_channel(
c2_client.sender,
TEST_SETTLE_TIMEOUT_MIN,
)
assert c1_token_network_proxy.channel_exists(c1_client.sender,
c2_client.sender) is True
assert c1_token_network_proxy.channel_is_opened(c1_client.sender,
c2_client.sender) is True
# channel is open.
# deposit with no balance
with pytest.raises(ValueError):
c1_token_network_proxy.set_total_deposit(
10,
c2_client.sender,
)
# test deposits
initial_token_balance = 100
token_proxy.transfer(c1_client.sender, initial_token_balance)
initial_balance_c1 = token_proxy.balance_of(c1_client.sender)
assert initial_balance_c1 == initial_token_balance
initial_balance_c2 = token_proxy.balance_of(c2_client.sender)
assert initial_balance_c2 == 0
# no negative deposit
with pytest.raises(ValueError):
c1_token_network_proxy.set_total_deposit(
-1,
c2_client.sender,
)
# actual deposit
c1_token_network_proxy.set_total_deposit(
10,
c2_client.sender,
)
# balance proof by c2
transferred_amount = 3
balance_proof = BalanceProof(
channel_identifier=encode_hex(channel_identifier),
token_network_address=to_checksum_address(token_network_address),
nonce=1,
chain_id=chain_id,
transferred_amount=transferred_amount,
)
balance_proof.signature = encode_hex(
sign_data(encode_hex(private_keys[1]),
balance_proof.serialize_bin()), )
# close with invalid signature
with pytest.raises(TransactionThrew):
c2_token_network_proxy.close(
c1_client.sender,
balance_proof.nonce,
decode_hex(balance_proof.balance_hash),
decode_hex(balance_proof.additional_hash),
b'\x11' * 65,
)
# correct close
c2_token_network_proxy.close(
c1_client.sender,
balance_proof.nonce,
decode_hex(balance_proof.balance_hash),
decode_hex(balance_proof.additional_hash),
decode_hex(balance_proof.signature),
)
assert c1_token_network_proxy.channel_is_closed(c1_client.sender,
c2_client.sender) is True
assert c1_token_network_proxy.channel_exists(c1_client.sender,
c2_client.sender) is True
# closing already closed channel
with pytest.raises(ChannelIncorrectStateError):
c2_token_network_proxy.close(
c1_client.sender,
balance_proof.nonce,
decode_hex(balance_proof.balance_hash),
decode_hex(balance_proof.additional_hash),
decode_hex(balance_proof.signature),
)
# update transfer
wait_blocks(c1_client.web3, TEST_SETTLE_TIMEOUT_MIN)
c2_token_network_proxy.settle(
0,
0,
EMPTY_HASH,
c1_client.sender,
transferred_amount,
0,
EMPTY_HASH,
)
assert c1_token_network_proxy.channel_exists(c1_client.sender,
c2_client.sender) is False
assert token_proxy.balance_of(c1_client.sender) == (initial_balance_c1 -
transferred_amount)
assert token_proxy.balance_of(c2_client.sender) == (initial_balance_c2 +
transferred_amount)