def main( # pylint: disable-msg=too-many-arguments
private_key: str,
state_db: str,
web3: Web3,
contracts: Dict[str, Contract],
start_block: BlockNumber,
confirmations: int,
host: str,
service_fee: TokenAmount,
operator: str,
info_message: str,
enable_debug: bool,
) -> int:
""" The Pathfinding service for the Raiden Network. """
log.info("Starting Raiden Pathfinding Service")
service = None
api = None
try:
service = PathfindingService(
web3=web3,
contracts=contracts,
sync_start_block=start_block,
required_confirmations=confirmations,
private_key=private_key,
poll_interval=DEFAULT_POLL_INTERVALL,
db_filename=state_db,
)
api = ServiceApi(
pathfinding_service=service,
service_fee=service_fee,
debug_mode=enable_debug,
one_to_n_address=contracts[CONTRACT_ONE_TO_N].address,
operator=operator,
info_message=info_message,
)
api.run(host=host)
service.run()
except (KeyboardInterrupt, SystemExit):
print("Exiting...")
finally:
log.info("Stopping Pathfinding Service...")
if api:
api.stop()
if service:
service.stop()
return 0
def pathfinding_service_web3_mock(
web3: Web3,
user_deposit_contract: Contract,
get_private_key: Callable,
create_service_account: Callable,
) -> Generator[PathfindingService, None, None]:
pfs_address = to_canonical_address(create_service_account())
with patch("pathfinding_service.service.MatrixListener", new=Mock):
pathfinding_service = PathfindingService(
web3=web3,
contracts={
CONTRACT_TOKEN_NETWORK_REGISTRY: Mock(address="0x" + "9" * 40),
CONTRACT_USER_DEPOSIT: user_deposit_contract,
},
private_key=get_private_key(pfs_address),
db_filename=":memory:",
required_confirmations=1,
)
yield pathfinding_service
def test_pfs_min_calculation_with_capacity_updates(
pathfinding_service_web3_mock: PathfindingService, ):
token_network = setup_channel(pathfinding_service_web3_mock)
view_to_partner, view_from_partner = token_network.get_channel_views_for_partner(
updating_participant=PRIVATE_KEY_1_ADDRESS,
other_participant=PRIVATE_KEY_2_ADDRESS)
message1 = get_capacity_update_message(
updating_participant=PRIVATE_KEY_1_ADDRESS,
other_participant=PRIVATE_KEY_2_ADDRESS,
privkey_signer=PRIVATE_KEY_1,
updating_capacity=TA(90),
other_capacity=TA(110),
)
pathfinding_service_web3_mock.on_capacity_update(message1)
# Now the channel capacities are set to 0, since only P1 sent an update
assert view_to_partner.capacity == 0
assert view_from_partner.capacity == 0
# We need two Capacity Updates, one from each side to set the capacities due to min calculation
message2 = get_capacity_update_message(
updating_participant=PRIVATE_KEY_2_ADDRESS,
other_participant=PRIVATE_KEY_1_ADDRESS,
privkey_signer=PRIVATE_KEY_2,
updating_capacity=TA(110),
other_capacity=TA(90),
)
pathfinding_service_web3_mock.on_capacity_update(message2)
# Now after both participants have sent Capacity Updates, we have the correct capacities
assert view_to_partner.capacity == 90
assert view_from_partner.capacity == 110
# Now P1 sends the same update again, the capacities should not change (no need for nonces)
pathfinding_service_web3_mock.on_capacity_update(message1)
assert view_to_partner.capacity == 90
assert view_from_partner.capacity == 110
# Now P1 tries to cheat and lies about his own capacity (10000) to mediate more
message3 = get_capacity_update_message(
updating_participant=PRIVATE_KEY_1_ADDRESS,
other_participant=PRIVATE_KEY_2_ADDRESS,
privkey_signer=PRIVATE_KEY_1,
updating_capacity=TA(10000),
other_capacity=TA(110),
)
pathfinding_service_web3_mock.on_capacity_update(message3)
# The capacities should be calculated out of the minimum of the two capacity updates,
# so stay the same
assert view_to_partner.capacity == 90
assert view_from_partner.capacity == 110
# Now P1 tries to cheat and lies about his partner's capacity (0) to block him
message4 = get_capacity_update_message(
updating_participant=PRIVATE_KEY_1_ADDRESS,
other_participant=PRIVATE_KEY_2_ADDRESS,
privkey_signer=PRIVATE_KEY_1,
updating_capacity=TA(90),
other_capacity=TA(0),
)
pathfinding_service_web3_mock.on_capacity_update(message4)
# The capacities should be calculated out of the minimum of the two capacity updates,
# he can block his partner
assert view_to_partner.capacity == 90
assert view_from_partner.capacity == 0
# Now P1 tries to cheat and lies about his partner's capacity (10000) for no obvious reason
message4 = get_capacity_update_message(
updating_participant=PRIVATE_KEY_1_ADDRESS,
other_participant=PRIVATE_KEY_2_ADDRESS,
privkey_signer=PRIVATE_KEY_1,
updating_capacity=TA(90),
other_capacity=TA(10000),
)
pathfinding_service_web3_mock.on_capacity_update(message4)
# The capacities should be calculated out of the minimum of the two capacity updates
assert view_to_partner.capacity == 90
assert view_from_partner.capacity == 110
def test_pfs_with_mocked_client( # pylint: disable=too-many-arguments
web3,
token_network_registry_contract,
channel_descriptions_case_1: List,
get_accounts,
wait_for_blocks,
user_deposit_contract,
token_network,
custom_token,
create_channel,
get_private_key,
): # pylint: disable=too-many-locals
""" Instantiates some MockClients and the PathfindingService.
Mocks blockchain events to setup a token network with a given topology, specified in
the channel_description fixture. Tests all PFS methods w.r.t. to that topology
"""
clients = get_accounts(7)
token_network_address = decode_hex(token_network.address)
with patch("pathfinding_service.service.MatrixListener", new=Mock):
pfs = PathfindingService(
web3=web3,
contracts={
CONTRACT_TOKEN_NETWORK_REGISTRY: token_network_registry_contract,
CONTRACT_USER_DEPOSIT: user_deposit_contract,
},
required_confirmations=1,
db_filename=":memory:",
poll_interval=0.1,
sync_start_block=BlockNumber(0),
private_key="3a1076bf45ab87712ad64ccb3b10217737f7faacbf2872e88fdd9a537d8fe266",
)
# greenlet needs to be started and context switched to
pfs.start()
wait_for_blocks(1)
gevent.sleep(0.1)
# there should be one token network registered
assert len(pfs.token_networks) == 1
token_network_model = pfs.token_networks[token_network_address]
graph = token_network_model.G
channel_identifiers = []
for (
p1_index,
p1_deposit,
_p1_capacity,
_p1_fee,
_p1_reveal_timeout,
_p1_reachability,
p2_index,
p2_deposit,
_p2_capacity,
_p2_fee,
_p2_reveal_timeout,
_p2_reachability,
_settle_timeout,
) in channel_descriptions_case_1:
# order is important here because we check order later
channel_id = create_channel(clients[p1_index], clients[p2_index])[0]
channel_identifiers.append(channel_id)
for address, partner_address, amount in [
(clients[p1_index], clients[p2_index], p1_deposit),
(clients[p2_index], clients[p1_index], p2_deposit),
]:
custom_token.functions.mint(amount).transact({"from": address})
custom_token.functions.approve(token_network.address, amount).transact(
{"from": address}
)
token_network.functions.setTotalDeposit(
channel_id, address, amount, partner_address
).transact({"from": address})
gevent.sleep()
wait_for_blocks(1)
gevent.sleep(0.1)
# there should be as many open channels as described
assert len(token_network_model.channel_id_to_addresses.keys()) == len(
channel_descriptions_case_1
)
# check that deposits, settle_timeout and transfers got registered
for (
index,
(
_p1_index,
p1_deposit,
_p1_capacity,
_p1_fee,
_p1_reveal_timeout,
_p1_reachability,
_p2_index,
p2_deposit,
_p2_capacity,
_p2_fee,
_p2_reveal_timeout,
_p2_reachability,
_settle_timeout,
),
) in enumerate(channel_descriptions_case_1):
channel_identifier = channel_identifiers[index]
p1_address, p2_address = token_network_model.channel_id_to_addresses[channel_identifier]
view1: ChannelView = graph[p1_address][p2_address]["view"]
view2: ChannelView = graph[p2_address][p1_address]["view"]
assert view1.deposit == p1_deposit
assert view2.deposit == p2_deposit
assert view1.settle_timeout == TEST_SETTLE_TIMEOUT_MIN
assert view2.settle_timeout == TEST_SETTLE_TIMEOUT_MIN
assert view1.reveal_timeout == DEFAULT_REVEAL_TIMEOUT
assert view2.reveal_timeout == DEFAULT_REVEAL_TIMEOUT
# now close all channels
for (
index,
(
p1_index,
_p1_deposit,
_p1_capacity,
_p1_fee,
_p1_reveal_timeout,
_p1_reachability,
p2_index,
_p2_deposit,
_p2_capacity,
_p2_fee,
_p2_reveal_timeout,
_p2_reachability,
_settle_timeout,
),
) in enumerate(channel_descriptions_case_1):
channel_id = channel_identifiers[index]
balance_proof = HashedBalanceProof(
nonce=Nonce(1),
transferred_amount=0,
priv_key=get_private_key(clients[p2_index]),
channel_identifier=channel_id,
token_network_address=token_network.address,
chain_id=ChainID(1),
additional_hash="0x%064x" % 0,
locked_amount=0,
locksroot=encode_hex(LOCKSROOT_OF_NO_LOCKS),
)
token_network.functions.closeChannel(
channel_id,
clients[p2_index],
balance_proof.balance_hash,
balance_proof.nonce,
balance_proof.additional_hash,
balance_proof.signature,
).transact({"from": clients[p1_index], "gas": 200_000})
wait_for_blocks(1)
gevent.sleep(0.1)
# there should be no channels
assert len(token_network_model.channel_id_to_addresses.keys()) == 0
pfs.stop()
def test_pfs_min_calculation_with_capacity_updates(
pathfinding_service_web3_mock: PathfindingService):
token_network = setup_channel_with_deposits(pathfinding_service_web3_mock)
view_to_partner, view_from_partner = token_network.get_channel_views_for_partner(
updating_participant=PRIVATE_KEY_1_ADDRESS,
other_participant=PRIVATE_KEY_2_ADDRESS)
# Assert initial capacity with no Capacity Updates
assert view_to_partner.capacity == 100
assert view_from_partner.capacity == 100
message1 = get_updatepfs_message(
updating_participant=PRIVATE_KEY_1_ADDRESS,
other_participant=PRIVATE_KEY_2_ADDRESS,
privkey_signer=PRIVATE_KEY_1,
updating_capacity=90,
other_capacity=110,
)
pathfinding_service_web3_mock.on_pfs_update(message1)
# Now the channel capacities are set to 0, since only P1 sent an update
assert view_to_partner.capacity == 0
assert view_from_partner.capacity == 0
# We need two Capacity Updates, one from each side to set the capacities due to min calculation
message2 = get_updatepfs_message(
updating_participant=PRIVATE_KEY_2_ADDRESS,
other_participant=PRIVATE_KEY_1_ADDRESS,
privkey_signer=PRIVATE_KEY_2,
updating_capacity=110,
other_capacity=90,
)
pathfinding_service_web3_mock.on_pfs_update(message2)
# Now after both participants have sent Capacity Updates, we have the correct capacities
assert view_to_partner.capacity == 90
assert view_from_partner.capacity == 110
# Now P1 sends the same update again, the capacities should not change (no need for nonces)
pathfinding_service_web3_mock.on_pfs_update(message1)
assert view_to_partner.capacity == 90
assert view_from_partner.capacity == 110
# Now P1 tries to cheat and lies about his own capacity (10000) to mediate more
message3 = get_updatepfs_message(
updating_participant=PRIVATE_KEY_1_ADDRESS,
other_participant=PRIVATE_KEY_2_ADDRESS,
privkey_signer=PRIVATE_KEY_1,
updating_capacity=10000,
other_capacity=110,
)
pathfinding_service_web3_mock.on_pfs_update(message3)
# The capacities should be calculated out of the minimum of the two capacity updates,
# so stay the same
assert view_to_partner.capacity == 90
assert view_from_partner.capacity == 110
# Now P1 tries to cheat and lies about his partner's capacity (0) to block him
message4 = get_updatepfs_message(
updating_participant=PRIVATE_KEY_1_ADDRESS,
other_participant=PRIVATE_KEY_2_ADDRESS,
privkey_signer=PRIVATE_KEY_1,
updating_capacity=90,
other_capacity=0,
)
pathfinding_service_web3_mock.on_pfs_update(message4)
# The capacities should be calculated out of the minimum of the two capacity updates,
# he can block his partner
assert view_to_partner.capacity == 90
assert view_from_partner.capacity == 0
# Now P1 tries to cheat and lies about his partner's capacity (10000) for no obvious reason
message4 = get_updatepfs_message(
updating_participant=PRIVATE_KEY_1_ADDRESS,
other_participant=PRIVATE_KEY_2_ADDRESS,
privkey_signer=PRIVATE_KEY_1,
updating_capacity=90,
other_capacity=10000,
)
pathfinding_service_web3_mock.on_pfs_update(message4)
# The capacities should be calculated out of the minimum of the two capacity updates
assert view_to_partner.capacity == 90
assert view_from_partner.capacity == 110
# Test if new deposits work as expected, so P1 deposits 100 new tokens
# (total deposit 200, but capacity must be 190)
token_network.handle_channel_new_deposit_event(
channel_identifier=DEFAULT_CHANNEL_ID,
receiver=PRIVATE_KEY_1_ADDRESS,
total_deposit=TokenAmount(200),
)
assert view_to_partner.capacity == 190
assert view_from_partner.capacity == 110
def main( # pylint: disable=too-many-arguments,too-many-locals
private_key: PrivateKey,
state_db: str,
web3: Web3,
contracts: Dict[str, Contract],
start_block: BlockNumber,
confirmations: BlockTimeout,
host: str,
port: int,
service_fee: TokenAmount,
operator: str,
info_message: str,
enable_debug: bool,
matrix_server: List[str],
accept_disclaimer: bool,
enable_tracing: bool,
tracing_sampler: str,
tracing_param: str,
) -> int:
"""The Pathfinding service for the Raiden Network."""
log.info("Starting Raiden Pathfinding Service")
click.secho(PFS_DISCLAIMER, fg="yellow")
if not accept_disclaimer:
click.confirm(CONFIRMATION_OF_UNDERSTANDING, abort=True)
if not confirmations:
chain_id = ChainID(web3.eth.chain_id)
confirmations = (BlockTimeout(0) if "arbitrum" in ID_TO_CHAINNAME.get(
chain_id, "") else DEFAULT_NUMBER_OF_BLOCK_CONFIRMATIONS)
log.info("Setting number of confirmation blocks",
confirmations=confirmations)
log.info("Using RPC endpoint", rpc_url=get_web3_provider_info(web3))
hex_addresses = {
name: to_checksum_address(contract.address)
for name, contract in contracts.items()
}
log.info("Contract information",
addresses=hex_addresses,
start_block=start_block)
if enable_tracing:
tracing_config = Config(
config={
"sampler": {
"type": tracing_sampler,
"param": tracing_param
},
"logging": True
},
service_name="pfs",
scope_manager=GeventScopeManager(),
validate=True,
)
# Tracer is stored in `opentracing.tracer`
tracing_config.initialize_tracer()
assert isinstance(web3.provider, HTTPProvider), MYPY_ANNOTATION
assert web3.provider.endpoint_uri is not None, MYPY_ANNOTATION
# Set `Web3` requests Session to use `SessionTracing`
cache_session(
web3.provider.endpoint_uri,
SessionTracing(propagate=False, span_tags={"target": "ethnode"}),
)
service = None
api = None
try:
service = PathfindingService(
web3=web3,
contracts=contracts,
sync_start_block=start_block,
required_confirmations=confirmations,
private_key=private_key,
poll_interval=DEFAULT_POLL_INTERVALL,
db_filename=state_db,
matrix_servers=matrix_server,
enable_tracing=enable_tracing,
)
service.start()
log.debug("Waiting for service to start before accepting API requests")
try:
service.startup_finished.get(timeout=PFS_START_TIMEOUT)
except gevent.Timeout:
raise Exception("PFS did not start within time.")
log.debug("Starting API")
api = PFSApi(
pathfinding_service=service,
service_fee=service_fee,
debug_mode=enable_debug,
one_to_n_address=to_canonical_address(
contracts[CONTRACT_ONE_TO_N].address),
operator=operator,
info_message=info_message,
enable_tracing=enable_tracing,
)
api.run(host=host, port=port)
service.get()
except (KeyboardInterrupt, SystemExit):
print("Exiting...")
finally:
log.info("Stopping Pathfinding Service...")
if api:
api.stop()
if service:
service.stop()
return 0
def test_pfs_with_mocked_client(
web3,
ethereum_tester,
contracts_manager: ContractManager,
token_network_registry_contract,
channel_descriptions_case_1: List,
generate_raiden_clients,
wait_for_blocks,
user_deposit_contract,
):
""" Instantiates some MockClients and the PathfindingService.
Mocks blockchain events to setup a token network with a given topology, specified in
the channel_description fixture. Tests all PFS methods w.r.t. to that topology
"""
clients = generate_raiden_clients(7)
token_network_address = clients[0].contract.address
with patch("pathfinding_service.service.MatrixListener", new=Mock):
pfs = PathfindingService(
web3=web3,
contracts={
CONTRACT_TOKEN_NETWORK_REGISTRY:
token_network_registry_contract,
CONTRACT_USER_DEPOSIT: user_deposit_contract,
},
required_confirmations=1,
db_filename=":memory:",
poll_interval=0.1,
sync_start_block=BlockNumber(0),
private_key=
"3a1076bf45ab87712ad64ccb3b10217737f7faacbf2872e88fdd9a537d8fe266",
)
# greenlet needs to be started and context switched to
pfs.start()
wait_for_blocks(1)
gevent.sleep(0.1)
# there should be one token network registered
assert len(pfs.token_networks) == 1
token_network = pfs.token_networks[token_network_address]
graph = token_network.G
channel_identifiers = []
for (
p1_index,
p1_deposit,
_p1_capacity,
_p1_fee,
_p1_reveal_timeout,
p2_index,
p2_deposit,
_p2_capacity,
_p2_fee,
_p2_reveal_timeout,
_settle_timeout,
) in channel_descriptions_case_1:
# order is important here because we check order later
channel_identifier = clients[p1_index].open_channel(
clients[p2_index].address)
channel_identifiers.append(channel_identifier)
clients[p1_index].deposit_to_channel(clients[p2_index].address,
p1_deposit)
clients[p2_index].deposit_to_channel(clients[p1_index].address,
p2_deposit)
gevent.sleep()
wait_for_blocks(1)
gevent.sleep(0.1)
# there should be as many open channels as described
assert len(token_network.channel_id_to_addresses.keys()) == len(
channel_descriptions_case_1)
# check that deposits, settle_timeout and transfers got registered
for (
index,
(
_p1_index,
p1_deposit,
_p1_capacity,
_p1_fee,
_p1_reveal_timeout,
_p2_index,
p2_deposit,
_p2_capacity,
_p2_fee,
_p2_reveal_timeout,
_settle_timeout,
),
) in enumerate(channel_descriptions_case_1):
channel_identifier = channel_identifiers[index]
p1_address, p2_address = token_network.channel_id_to_addresses[
channel_identifier]
view1: ChannelView = graph[p1_address][p2_address]["view"]
view2: ChannelView = graph[p2_address][p1_address]["view"]
assert view1.deposit == p1_deposit
assert view2.deposit == p2_deposit
assert view1.settle_timeout == 15
assert view2.settle_timeout == 15
assert view1.reveal_timeout == DEFAULT_REVEAL_TIMEOUT
assert view2.reveal_timeout == DEFAULT_REVEAL_TIMEOUT
# now close all channels
for (
p1_index,
_p1_deposit,
_p1_capacity,
_p1_fee,
_p1_reveal_timeout,
p2_index,
_p2_deposit,
_p2_capacity,
_p2_fee,
_p2_reveal_timeout,
_settle_timeout,
) in channel_descriptions_case_1:
balance_proof = clients[p2_index].get_balance_proof(
clients[p1_index].address,
nonce=1,
transferred_amount=0,
locked_amount=0,
locksroot="0x%064x" % 0,
additional_hash="0x%064x" % 1,
)
clients[p1_index].close_channel(clients[p2_index].address,
balance_proof)
wait_for_blocks(1)
gevent.sleep(0.1)
# there should be no channels
assert len(token_network.channel_id_to_addresses.keys()) == 0
pfs.stop()
def main( # pylint: disable=too-many-arguments,too-many-locals
private_key: PrivateKey,
state_db: str,
web3: Web3,
contracts: Dict[str, Contract],
start_block: BlockNumber,
confirmations: BlockTimeout,
host: str,
port: int,
service_fee: TokenAmount,
operator: str,
info_message: str,
enable_debug: bool,
matrix_server: List[str],
accept_disclaimer: bool,
) -> int:
"""The Pathfinding service for the Raiden Network."""
log.info("Starting Raiden Pathfinding Service")
click.secho(PFS_DISCLAIMER, fg="yellow")
if not accept_disclaimer:
click.confirm(CONFIRMATION_OF_UNDERSTANDING, abort=True)
log.info("Using RPC endpoint", rpc_url=get_web3_provider_info(web3))
hex_addresses = {
name: to_checksum_address(contract.address)
for name, contract in contracts.items()
}
log.info("Contract information",
addresses=hex_addresses,
start_block=start_block)
service = None
api = None
try:
service = PathfindingService(
web3=web3,
contracts=contracts,
sync_start_block=start_block,
required_confirmations=confirmations,
private_key=private_key,
poll_interval=DEFAULT_POLL_INTERVALL,
db_filename=state_db,
matrix_servers=matrix_server,
)
service.start()
log.debug("Waiting for service to start before accepting API requests")
try:
service.startup_finished.get(timeout=PFS_START_TIMEOUT)
except gevent.Timeout:
raise Exception("PFS did not start within time.")
log.debug("Starting API")
api = PFSApi(
pathfinding_service=service,
service_fee=service_fee,
debug_mode=enable_debug,
one_to_n_address=to_canonical_address(
contracts[CONTRACT_ONE_TO_N].address),
operator=operator,
info_message=info_message,
)
api.run(host=host, port=port)
service.get()
except (KeyboardInterrupt, SystemExit):
print("Exiting...")
finally:
log.info("Stopping Pathfinding Service...")
if api:
api.stop()
if service:
service.stop()
return 0
