class RestAPI:
"""
This wraps around the actual RaidenAPI in api/python.
It will provide the additional, neccessary RESTful logic and
the proper JSON-encoding of the Objects provided by the RaidenAPI
"""
version = 1
def __init__(self, raiden_api):
self.raiden_api = raiden_api
self.channel_schema = ChannelStateSchema()
self.address_list_schema = AddressListSchema()
self.partner_per_token_list_schema = PartnersPerTokenListSchema()
self.payment_schema = PaymentSchema()
self.sent_success_payment_schema = EventPaymentSentSuccessSchema()
self.received_success_payment_schema = EventPaymentReceivedSuccessSchema(
)
self.failed_payment_schema = EventPaymentSentFailedSchema()
def get_our_address(self):
return api_response(result=dict(
our_address=to_checksum_address(self.raiden_api.address)), )
def register_token(
self,
registry_address: typing.PaymentNetworkID,
token_address: typing.TokenAddress,
):
log.debug(
'Registering token',
registry_address=to_checksum_address(registry_address),
token_address=to_checksum_address(token_address),
)
try:
token_network_address = self.raiden_api.token_network_register(
registry_address,
token_address,
)
except EthNodeCommunicationError:
return api_response(
result='',
status_code=HTTPStatus.ACCEPTED,
)
except (InvalidAddress, AlreadyRegisteredTokenAddress,
TransactionThrew) as e:
return api_error(
errors=str(e),
status_code=HTTPStatus.CONFLICT,
)
except InsufficientFunds as e:
return api_error(
errors=str(e),
status_code=HTTPStatus.PAYMENT_REQUIRED,
)
return api_response(
result=dict(token_network_address=to_checksum_address(
token_network_address)),
status_code=HTTPStatus.CREATED,
)
def open(
self,
registry_address: typing.PaymentNetworkID,
partner_address: typing.Address,
token_address: typing.TokenAddress,
settle_timeout: typing.BlockTimeout = None,
reveal_timeout: typing.BlockTimeout = None,
total_deposit: typing.TokenAmount = None,
):
log.debug(
'Opening channel',
registry_address=to_checksum_address(registry_address),
partner_address=to_checksum_address(partner_address),
token_address=to_checksum_address(token_address),
settle_timeout=settle_timeout,
reveal_timeout=reveal_timeout,
)
try:
self.raiden_api.channel_open(
registry_address,
token_address,
partner_address,
settle_timeout,
reveal_timeout,
)
except EthNodeCommunicationError:
return api_response(
result='',
status_code=HTTPStatus.ACCEPTED,
)
except (InvalidAddress, InvalidSettleTimeout, SamePeerAddress,
AddressWithoutCode, DuplicatedChannelError,
TokenNotRegistered) as e:
return api_error(
errors=str(e),
status_code=HTTPStatus.CONFLICT,
)
except (InsufficientFunds, InsufficientGasReserve) as e:
return api_error(
errors=str(e),
status_code=HTTPStatus.PAYMENT_REQUIRED,
)
if total_deposit:
# make initial deposit
log.debug(
'Depositing to new channel',
registry_address=to_checksum_address(registry_address),
token_address=to_checksum_address(token_address),
partner_address=to_checksum_address(partner_address),
total_deposit=total_deposit,
)
try:
self.raiden_api.set_total_channel_deposit(
registry_address=registry_address,
token_address=token_address,
partner_address=partner_address,
total_deposit=total_deposit,
)
except EthNodeCommunicationError:
return api_response(
result='',
status_code=HTTPStatus.ACCEPTED,
)
except InsufficientFunds as e:
return api_error(
errors=str(e),
status_code=HTTPStatus.PAYMENT_REQUIRED,
)
except (DepositOverLimit, DepositMismatch) as e:
return api_error(
errors=str(e),
status_code=HTTPStatus.CONFLICT,
)
channel_state = views.get_channelstate_for(
views.state_from_raiden(self.raiden_api.raiden),
registry_address,
token_address,
partner_address,
)
result = self.channel_schema.dump(channel_state)
return api_response(
result=result.data,
status_code=HTTPStatus.CREATED,
)
def connect(
self,
registry_address: typing.PaymentNetworkID,
token_address: typing.TokenAddress,
funds: typing.TokenAmount,
initial_channel_target: int = None,
joinable_funds_target: float = None,
):
log.debug(
'Connecting to token network',
registry_address=to_checksum_address(registry_address),
token_address=to_checksum_address(token_address),
funds=funds,
initial_channel_target=initial_channel_target,
joinable_funds_target=joinable_funds_target,
)
try:
self.raiden_api.token_network_connect(
registry_address,
token_address,
funds,
initial_channel_target,
joinable_funds_target,
)
except EthNodeCommunicationError:
return api_response(
result='',
status_code=HTTPStatus.ACCEPTED,
)
except (InsufficientFunds, InsufficientGasReserve) as e:
return api_error(
errors=str(e),
status_code=HTTPStatus.PAYMENT_REQUIRED,
)
except (InvalidAmount, InvalidAddress) as e:
return api_error(
errors=str(e),
status_code=HTTPStatus.CONFLICT,
)
return api_response(
result=dict(),
status_code=HTTPStatus.NO_CONTENT,
)
def leave(
self,
registry_address: typing.PaymentNetworkID,
token_address: typing.TokenAddress,
):
log.debug(
'Leaving token network',
registry_address=to_checksum_address(registry_address),
token_address=to_checksum_address(token_address),
)
closed_channels = self.raiden_api.token_network_leave(
registry_address,
token_address,
)
closed_channels = [
self.channel_schema.dump(channel_state).data
for channel_state in closed_channels
]
return api_response(result=closed_channels)
def get_connection_managers_info(
self, registry_address: typing.PaymentNetworkID):
"""Get a dict whose keys are token addresses and whose values are
open channels, funds of last request, sum of deposits and number of channels"""
log.debug(
'Getting connection managers info',
registry_address=to_checksum_address(registry_address),
)
connection_managers = dict()
for token in self.raiden_api.get_tokens_list(registry_address):
token_network_identifier = views.get_token_network_identifier_by_token_address(
views.state_from_raiden(self.raiden_api.raiden),
payment_network_id=registry_address,
token_address=token,
)
try:
connection_manager = self.raiden_api.raiden.connection_manager_for_token_network(
token_network_identifier, )
except InvalidAddress:
connection_manager = None
open_channels = views.get_channelstate_open(
chain_state=views.state_from_raiden(self.raiden_api.raiden),
payment_network_id=registry_address,
token_address=token,
)
if connection_manager is not None and open_channels:
connection_managers[to_checksum_address(
connection_manager.token_address)] = {
'funds':
connection_manager.funds,
'sum_deposits':
views.get_our_capacity_for_token_network(
views.state_from_raiden(self.raiden_api.raiden),
registry_address,
token,
),
'channels':
len(open_channels),
}
return connection_managers
def get_channel_list(
self,
registry_address: typing.PaymentNetworkID,
token_address: typing.TokenAddress = None,
partner_address: typing.Address = None,
):
log.debug(
'Getting channel list',
registry_address=to_checksum_address(registry_address),
token_address=optional_address_to_string(token_address),
partner_address=optional_address_to_string(partner_address),
)
raiden_service_result = self.raiden_api.get_channel_list(
registry_address,
token_address,
partner_address,
)
assert isinstance(raiden_service_result, list)
result = [
self.channel_schema.dump(channel_schema).data
for channel_schema in raiden_service_result
]
return api_response(result=result)
def get_tokens_list(self, registry_address: typing.PaymentNetworkID):
log.debug(
'Getting token list',
registry_address=registry_address,
)
raiden_service_result = self.raiden_api.get_tokens_list(
registry_address)
assert isinstance(raiden_service_result, list)
tokens_list = AddressList(raiden_service_result)
result = self.address_list_schema.dump(tokens_list)
return api_response(result=result.data)
def get_blockchain_events_network(
self,
registry_address: typing.PaymentNetworkID,
from_block: typing.BlockSpecification = 0,
to_block: typing.BlockSpecification = 'latest',
):
log.debug(
'Getting network events',
registry_address=to_checksum_address(registry_address),
from_block=from_block,
to_block=to_block,
)
try:
raiden_service_result = self.raiden_api.get_blockchain_events_network(
registry_address=registry_address,
from_block=from_block,
to_block=to_block,
)
except InvalidBlockNumberInput as e:
return api_error(str(e), status_code=HTTPStatus.CONFLICT)
return api_response(
result=normalize_events_list(raiden_service_result))
def get_blockchain_events_token_network(
self,
token_address: typing.TokenAddress,
from_block: typing.BlockSpecification = 0,
to_block: typing.BlockSpecification = 'latest',
):
log.debug(
'Getting token network blockchain events',
token_address=token_address,
)
try:
raiden_service_result = self.raiden_api.get_blockchain_events_token_network(
token_address=token_address,
from_block=from_block,
to_block=to_block,
)
return api_response(
result=normalize_events_list(raiden_service_result))
except UnknownTokenAddress as e:
return api_error(str(e), status_code=HTTPStatus.NOT_FOUND)
except (InvalidBlockNumberInput, InvalidAddress) as e:
return api_error(str(e), status_code=HTTPStatus.CONFLICT)
def get_raiden_events_payment_history(
self,
token_address: typing.TokenAddress = None,
target_address: typing.Address = None,
limit: int = None,
offset: int = None,
):
log.debug(
'Getting payment history',
token_address=optional_address_to_string(token_address),
target_address=optional_address_to_string(target_address),
)
try:
raiden_service_result = self.raiden_api.get_raiden_events_payment_history(
token_address=token_address,
target_address=target_address,
limit=limit,
offset=offset,
)
except (InvalidBlockNumberInput, InvalidAddress) as e:
return api_error(str(e), status_code=HTTPStatus.CONFLICT)
result = []
for event in raiden_service_result:
if isinstance(event, EventPaymentSentSuccess):
serialized_event = self.sent_success_payment_schema.dump(event)
elif isinstance(event, EventPaymentSentFailed):
serialized_event = self.failed_payment_schema.dump(event)
elif isinstance(event, EventPaymentReceivedSuccess):
serialized_event = self.received_success_payment_schema.dump(
event)
else:
log.warning('Unexpected event', unexpected_event=event)
result.append(serialized_event.data)
return api_response(result=result)
def get_raiden_internal_events(self, limit, offset):
return [
str(e) for e in self.raiden_api.raiden.wal.storage.get_events(
limit=limit, offset=offset)
]
def get_blockchain_events_channel(
self,
token_address: typing.TokenAddress,
partner_address: typing.Address = None,
from_block: typing.BlockSpecification = 0,
to_block: typing.BlockSpecification = 'latest',
):
log.debug(
'Getting channel blockchain events',
token_address=token_address,
partner_address=partner_address,
)
try:
raiden_service_result = self.raiden_api.get_blockchain_events_channel(
token_address=token_address,
partner_address=partner_address,
from_block=from_block,
to_block=to_block,
)
return api_response(
result=normalize_events_list(raiden_service_result))
except (InvalidBlockNumberInput, InvalidAddress) as e:
return api_error(str(e), status_code=HTTPStatus.CONFLICT)
except UnknownTokenAddress as e:
return api_error(str(e), status_code=HTTPStatus.NOT_FOUND)
def get_channel(
self,
registry_address: typing.PaymentNetworkID,
token_address: typing.TokenAddress,
partner_address: typing.Address,
):
log.debug(
'Getting channel',
registry_address=to_checksum_address(registry_address),
token_address=to_checksum_address(token_address),
partner_address=to_checksum_address(partner_address),
)
try:
channel_state = self.raiden_api.get_channel(
registry_address=registry_address,
token_address=token_address,
partner_address=partner_address,
)
result = self.channel_schema.dump(channel_state)
return api_response(result=result.data)
except ChannelNotFound as e:
return api_error(
errors=str(e),
status_code=HTTPStatus.NOT_FOUND,
)
def get_partners_by_token(
self,
registry_address: typing.PaymentNetworkID,
token_address: typing.TokenAddress,
):
log.debug(
'Getting partners by token',
registry_address=to_checksum_address(registry_address),
token_address=to_checksum_address(token_address),
)
return_list = []
try:
raiden_service_result = self.raiden_api.get_channel_list(
registry_address,
token_address,
)
except InvalidAddress as e:
return api_error(
errors=str(e),
status_code=HTTPStatus.CONFLICT,
)
for result in raiden_service_result:
return_list.append({
'partner_address':
result.partner_state.address,
'channel':
url_for(
# TODO: Somehow nicely parameterize this for future versions
'v1_resources.channelsresourcebytokenandpartneraddress',
token_address=token_address,
partner_address=result.partner_state.address,
),
})
schema_list = PartnersPerTokenList(return_list)
result = self.partner_per_token_list_schema.dump(schema_list)
return api_response(result=result.data)
def initiate_payment(
self,
registry_address: typing.PaymentNetworkID,
token_address: typing.TokenAddress,
target_address: typing.Address,
amount: typing.TokenAmount,
identifier: typing.PaymentID,
):
log.debug(
'Initiating payment',
registry_address=to_checksum_address(registry_address),
token_address=to_checksum_address(token_address),
target_address=to_checksum_address(target_address),
amount=amount,
payment_identifier=identifier,
)
if identifier is None:
identifier = create_default_identifier()
try:
transfer_result = self.raiden_api.transfer(
registry_address=registry_address,
token_address=token_address,
target=target_address,
amount=amount,
identifier=identifier,
)
except (InvalidAmount, InvalidAddress) as e:
return api_error(
errors=str(e),
status_code=HTTPStatus.CONFLICT,
)
except InsufficientFunds as e:
return api_error(
errors=str(e),
status_code=HTTPStatus.PAYMENT_REQUIRED,
)
if transfer_result is False:
return api_error(
errors="Payment couldn't be completed "
"(insufficient funds, no route to target or target offline).",
status_code=HTTPStatus.CONFLICT,
)
payment = {
'initiator_address': self.raiden_api.address,
'registry_address': registry_address,
'token_address': token_address,
'target_address': target_address,
'amount': amount,
'identifier': identifier,
}
result = self.payment_schema.dump(payment)
return api_response(result=result.data)
def _deposit(
self,
registry_address: typing.PaymentNetworkID,
channel_state: NettingChannelState,
total_deposit: typing.TokenAmount,
):
log.debug(
'Depositing to channel',
registry_address=to_checksum_address(registry_address),
channel_identifier=channel_state.identifier,
total_deposit=total_deposit,
)
if channel.get_status(channel_state) != CHANNEL_STATE_OPENED:
return api_error(
errors="Can't set total deposit on a closed channel",
status_code=HTTPStatus.CONFLICT,
)
try:
self.raiden_api.set_total_channel_deposit(
registry_address,
channel_state.token_address,
channel_state.partner_state.address,
total_deposit,
)
except EthNodeCommunicationError:
return api_response(
result='',
status_code=HTTPStatus.ACCEPTED,
)
except InsufficientFunds as e:
return api_error(
errors=str(e),
status_code=HTTPStatus.PAYMENT_REQUIRED,
)
except DepositOverLimit as e:
return api_error(
errors=str(e),
status_code=HTTPStatus.CONFLICT,
)
except DepositMismatch as e:
return api_error(
errors=str(e),
status_code=HTTPStatus.CONFLICT,
)
updated_channel_state = self.raiden_api.get_channel(
registry_address,
channel_state.token_address,
channel_state.partner_state.address,
)
result = self.channel_schema.dump(updated_channel_state)
return api_response(result=result.data)
def _close(
self,
registry_address: typing.PaymentNetworkID,
channel_state: NettingChannelState,
):
log.debug(
'Closing channel',
registry_address=to_checksum_address(registry_address),
channel_identifier=channel_state.identifier,
)
if channel.get_status(channel_state) != CHANNEL_STATE_OPENED:
return api_error(
errors='Attempted to close an already closed channel',
status_code=HTTPStatus.CONFLICT,
)
try:
self.raiden_api.channel_close(
registry_address,
channel_state.token_address,
channel_state.partner_state.address,
)
except EthNodeCommunicationError:
return api_response(
result='',
status_code=HTTPStatus.ACCEPTED,
)
except InsufficientFunds as e:
return api_error(
errors=str(e),
status_code=HTTPStatus.PAYMENT_REQUIRED,
)
updated_channel_state = self.raiden_api.get_channel(
registry_address,
channel_state.token_address,
channel_state.partner_state.address,
)
result = self.channel_schema.dump(updated_channel_state)
return api_response(result=result.data)
def patch_channel(
self,
registry_address: typing.PaymentNetworkID,
token_address: typing.TokenAddress,
partner_address: typing.Address,
total_deposit: typing.TokenAmount = None,
state: str = None,
):
log.debug(
'Patching channel',
registry_address=to_checksum_address(registry_address),
token_address=to_checksum_address(token_address),
partner_address=to_checksum_address(partner_address),
total_deposit=total_deposit,
state=state,
)
if total_deposit is not None and state is not None:
return api_error(
errors=
"Can not update a channel's total deposit and state at the same time",
status_code=HTTPStatus.CONFLICT,
)
if total_deposit is None and state is None:
return api_error(
errors=
"Nothing to do. Should either provide 'total_deposit' or 'state' argument",
status_code=HTTPStatus.BAD_REQUEST,
)
if total_deposit and total_deposit < 0:
return api_error(
errors="Amount to deposit must not be negative.",
status_code=HTTPStatus.CONFLICT,
)
try:
channel_state = self.raiden_api.get_channel(
registry_address=registry_address,
token_address=token_address,
partner_address=partner_address,
)
except ChannelNotFound:
return api_error(
errors='Requested channel for token {} and partner {} not found'
.format(
to_checksum_address(token_address),
to_checksum_address(partner_address),
),
status_code=HTTPStatus.CONFLICT,
)
except InvalidAddress as e:
return api_error(
errors=str(e),
status_code=HTTPStatus.CONFLICT,
)
if total_deposit is not None:
result = self._deposit(registry_address, channel_state,
total_deposit)
elif state == CHANNEL_STATE_CLOSED:
result = self._close(registry_address, channel_state)
else: # should never happen, channel_state is validated in the schema
result = api_error(
errors='Provided invalid channel state {}'.format(state),
status_code=HTTPStatus.BAD_REQUEST,
)
return result
class RestAPI:
"""
This wraps around the actual RaidenAPI in api/python.
It will provide the additional, neccessary RESTful logic and
the proper JSON-encoding of the Objects provided by the RaidenAPI
"""
version = 1
def __init__(self, raiden_api):
self.raiden_api = raiden_api
self.channel_schema = ChannelStateSchema()
self.address_list_schema = AddressListSchema()
self.partner_per_token_list_schema = PartnersPerTokenListSchema()
self.payment_schema = PaymentSchema()
self.sent_success_payment_schema = EventPaymentSentSuccessSchema()
self.received_success_payment_schema = EventPaymentReceivedSuccessSchema(
)
self.failed_payment_schema = EventPaymentSentFailedSchema()
def get_our_address(self):
return api_response(result=dict(
our_address=to_checksum_address(self.raiden_api.address)))
def register_token(self, registry_address: typing.PaymentNetworkID,
token_address: typing.TokenAddress):
if self.raiden_api.raiden.config[
"environment_type"] == Environment.PRODUCTION:
return api_error(
errors=
"Registering a new token is currently disabled in the Ethereum mainnet",
status_code=HTTPStatus.NOT_IMPLEMENTED,
)
conflict_exceptions = (
InvalidAddress,
AlreadyRegisteredTokenAddress,
TransactionThrew,
InvalidToken,
AddressWithoutCode,
)
log.debug(
"Registering token",
node=pex(self.raiden_api.address),
registry_address=to_checksum_address(registry_address),
token_address=to_checksum_address(token_address),
)
try:
token_network_address = self.raiden_api.token_network_register(
registry_address=registry_address,
token_address=token_address,
channel_participant_deposit_limit=UINT256_MAX,
token_network_deposit_limit=UINT256_MAX,
)
except conflict_exceptions as e:
return api_error(errors=str(e), status_code=HTTPStatus.CONFLICT)
except InsufficientFunds as e:
return api_error(errors=str(e),
status_code=HTTPStatus.PAYMENT_REQUIRED)
return api_response(
result=dict(token_network_address=to_checksum_address(
token_network_address)),
status_code=HTTPStatus.CREATED,
)
def open(
self,
registry_address: typing.PaymentNetworkID,
partner_address: typing.Address,
token_address: typing.TokenAddress,
settle_timeout: typing.BlockTimeout = None,
total_deposit: typing.TokenAmount = None,
):
log.debug(
"Opening channel",
node=pex(self.raiden_api.address),
registry_address=to_checksum_address(registry_address),
partner_address=to_checksum_address(partner_address),
token_address=to_checksum_address(token_address),
settle_timeout=settle_timeout,
)
try:
token = self.raiden_api.raiden.chain.token(token_address)
except AddressWithoutCode as e:
return api_error(errors=str(e), status_code=HTTPStatus.CONFLICT)
balance = token.balance_of(self.raiden_api.raiden.address)
if total_deposit is not None and total_deposit > balance:
error_msg = "Not enough balance to deposit. {} Available={} Needed={}".format(
pex(token_address), balance, total_deposit)
return api_error(errors=error_msg,
status_code=HTTPStatus.PAYMENT_REQUIRED)
try:
self.raiden_api.channel_open(registry_address, token_address,
partner_address, settle_timeout)
except (
InvalidAddress,
InvalidSettleTimeout,
SamePeerAddress,
AddressWithoutCode,
DuplicatedChannelError,
TokenNotRegistered,
) as e:
return api_error(errors=str(e), status_code=HTTPStatus.CONFLICT)
except (InsufficientFunds, InsufficientGasReserve) as e:
return api_error(errors=str(e),
status_code=HTTPStatus.PAYMENT_REQUIRED)
if total_deposit:
# make initial deposit
log.debug(
"Depositing to new channel",
node=pex(self.raiden_api.address),
registry_address=to_checksum_address(registry_address),
token_address=to_checksum_address(token_address),
partner_address=to_checksum_address(partner_address),
total_deposit=total_deposit,
)
try:
self.raiden_api.set_total_channel_deposit(
registry_address=registry_address,
token_address=token_address,
partner_address=partner_address,
total_deposit=total_deposit,
)
except InsufficientFunds as e:
return api_error(errors=str(e),
status_code=HTTPStatus.PAYMENT_REQUIRED)
except (DepositOverLimit, DepositMismatch) as e:
return api_error(errors=str(e),
status_code=HTTPStatus.CONFLICT)
channel_state = views.get_channelstate_for(
views.state_from_raiden(self.raiden_api.raiden),
registry_address,
token_address,
partner_address,
)
result = self.channel_schema.dump(channel_state)
return api_response(result=result.data, status_code=HTTPStatus.CREATED)
def connect(
self,
registry_address: typing.PaymentNetworkID,
token_address: typing.TokenAddress,
funds: typing.TokenAmount,
initial_channel_target: int = None,
joinable_funds_target: float = None,
):
log.debug(
"Connecting to token network",
node=pex(self.raiden_api.address),
registry_address=to_checksum_address(registry_address),
token_address=to_checksum_address(token_address),
funds=funds,
initial_channel_target=initial_channel_target,
joinable_funds_target=joinable_funds_target,
)
try:
self.raiden_api.token_network_connect(
registry_address,
token_address,
funds,
initial_channel_target,
joinable_funds_target,
)
except (InsufficientFunds, InsufficientGasReserve) as e:
return api_error(errors=str(e),
status_code=HTTPStatus.PAYMENT_REQUIRED)
except (InvalidAmount, InvalidAddress) as e:
return api_error(errors=str(e), status_code=HTTPStatus.CONFLICT)
return api_response(result=dict(), status_code=HTTPStatus.NO_CONTENT)
def leave(self, registry_address: typing.PaymentNetworkID,
token_address: typing.TokenAddress):
log.debug(
"Leaving token network",
node=pex(self.raiden_api.address),
registry_address=to_checksum_address(registry_address),
token_address=to_checksum_address(token_address),
)
closed_channels = self.raiden_api.token_network_leave(
registry_address, token_address)
closed_channels = [
self.channel_schema.dump(channel_state).data
for channel_state in closed_channels
]
return api_response(result=closed_channels)
def get_connection_managers_info(
self, registry_address: typing.PaymentNetworkID):
"""Get a dict whose keys are token addresses and whose values are
open channels, funds of last request, sum of deposits and number of channels"""
log.debug(
"Getting connection managers info",
node=pex(self.raiden_api.address),
registry_address=to_checksum_address(registry_address),
)
connection_managers = dict()
for token in self.raiden_api.get_tokens_list(registry_address):
token_network_identifier = views.get_token_network_identifier_by_token_address(
views.state_from_raiden(self.raiden_api.raiden),
payment_network_id=registry_address,
token_address=token,
)
try:
connection_manager = self.raiden_api.raiden.connection_manager_for_token_network(
token_network_identifier)
except InvalidAddress:
connection_manager = None
open_channels = views.get_channelstate_open(
chain_state=views.state_from_raiden(self.raiden_api.raiden),
payment_network_id=registry_address,
token_address=token,
)
if connection_manager is not None and open_channels:
connection_managers[to_checksum_address(
connection_manager.token_address)] = {
"funds":
connection_manager.funds,
"sum_deposits":
views.get_our_capacity_for_token_network(
views.state_from_raiden(self.raiden_api.raiden),
registry_address, token),
"channels":
len(open_channels),
}
return connection_managers
def get_channel_list(
self,
registry_address: typing.PaymentNetworkID,
token_address: typing.TokenAddress = None,
partner_address: typing.Address = None,
):
log.debug(
"Getting channel list",
node=pex(self.raiden_api.address),
registry_address=to_checksum_address(registry_address),
token_address=optional_address_to_string(token_address),
partner_address=optional_address_to_string(partner_address),
)
raiden_service_result = self.raiden_api.get_channel_list(
registry_address, token_address, partner_address)
assert isinstance(raiden_service_result, list)
result = [
self.channel_schema.dump(channel_schema).data
for channel_schema in raiden_service_result
]
return api_response(result=result)
def get_tokens_list(self, registry_address: typing.PaymentNetworkID):
log.debug(
"Getting token list",
node=pex(self.raiden_api.address),
registry_address=to_checksum_address(registry_address),
)
raiden_service_result = self.raiden_api.get_tokens_list(
registry_address)
assert isinstance(raiden_service_result, list)
tokens_list = AddressList(raiden_service_result)
result = self.address_list_schema.dump(tokens_list)
return api_response(result=result.data)
def get_token_network_for_token(self,
registry_address: typing.PaymentNetworkID,
token_address: typing.TokenAddress):
log.debug(
"Getting token network for token",
node=pex(self.raiden_api.address),
token_address=to_checksum_address(token_address),
)
token_network_address = self.raiden_api.get_token_network_address_for_token_address(
registry_address=registry_address, token_address=token_address)
if token_network_address is not None:
return api_response(
result=to_checksum_address(token_network_address))
else:
pretty_address = to_checksum_address(token_address)
message = f'No token network registered for token "{pretty_address}"'
return api_error(message, status_code=HTTPStatus.NOT_FOUND)
def get_blockchain_events_network(
self,
registry_address: typing.PaymentNetworkID,
from_block: typing.BlockSpecification = GENESIS_BLOCK_NUMBER,
to_block: typing.BlockSpecification = "latest",
):
log.debug(
"Getting network events",
node=pex(self.raiden_api.address),
registry_address=to_checksum_address(registry_address),
from_block=from_block,
to_block=to_block,
)
try:
raiden_service_result = self.raiden_api.get_blockchain_events_network(
registry_address=registry_address,
from_block=from_block,
to_block=to_block)
except InvalidBlockNumberInput as e:
return api_error(str(e), status_code=HTTPStatus.CONFLICT)
return api_response(
result=normalize_events_list(raiden_service_result))
def get_blockchain_events_token_network(
self,
token_address: typing.TokenAddress,
from_block: typing.BlockSpecification = GENESIS_BLOCK_NUMBER,
to_block: typing.BlockSpecification = "latest",
):
log.debug(
"Getting token network blockchain events",
node=pex(self.raiden_api.address),
token_address=to_checksum_address(token_address),
from_block=from_block,
to_block=to_block,
)
try:
raiden_service_result = self.raiden_api.get_blockchain_events_token_network(
token_address=token_address,
from_block=from_block,
to_block=to_block)
return api_response(
result=normalize_events_list(raiden_service_result))
except UnknownTokenAddress as e:
return api_error(str(e), status_code=HTTPStatus.NOT_FOUND)
except (InvalidBlockNumberInput, InvalidAddress) as e:
return api_error(str(e), status_code=HTTPStatus.CONFLICT)
def get_raiden_events_payment_history_with_timestamps(
self,
token_address: typing.TokenAddress = None,
target_address: typing.Address = None,
limit: int = None,
offset: int = None,
):
log.debug(
"Getting payment history",
node=pex(self.raiden_api.address),
token_address=optional_address_to_string(token_address),
target_address=optional_address_to_string(target_address),
limit=limit,
offset=offset,
)
try:
service_result = self.raiden_api.get_raiden_events_payment_history_with_timestamps(
token_address=token_address,
target_address=target_address,
limit=limit,
offset=offset,
)
except (InvalidNumberInput, InvalidAddress) as e:
return api_error(str(e), status_code=HTTPStatus.CONFLICT)
result = []
for event in service_result:
if isinstance(event.wrapped_event, EventPaymentSentSuccess):
serialized_event = self.sent_success_payment_schema.dump(event)
elif isinstance(event.wrapped_event, EventPaymentSentFailed):
serialized_event = self.failed_payment_schema.dump(event)
elif isinstance(event.wrapped_event, EventPaymentReceivedSuccess):
serialized_event = self.received_success_payment_schema.dump(
event)
else:
log.warning(
"Unexpected event",
node=pex(self.raiden_api.address),
unexpected_event=event.wrapped_event,
)
result.append(serialized_event.data)
return api_response(result=result)
def get_raiden_internal_events_with_timestamps(self, limit, offset):
return [
str(e) for e in self.raiden_api.raiden.wal.storage.
get_events_with_timestamps(limit=limit, offset=offset)
]
def get_blockchain_events_channel(
self,
token_address: typing.TokenAddress,
partner_address: typing.Address = None,
from_block: typing.BlockSpecification = GENESIS_BLOCK_NUMBER,
to_block: typing.BlockSpecification = "latest",
):
log.debug(
"Getting channel blockchain events",
node=pex(self.raiden_api.address),
token_address=to_checksum_address(token_address),
partner_address=optional_address_to_string(partner_address),
from_block=from_block,
to_block=to_block,
)
try:
raiden_service_result = self.raiden_api.get_blockchain_events_channel(
token_address=token_address,
partner_address=partner_address,
from_block=from_block,
to_block=to_block,
)
return api_response(
result=normalize_events_list(raiden_service_result))
except (InvalidBlockNumberInput, InvalidAddress) as e:
return api_error(str(e), status_code=HTTPStatus.CONFLICT)
except UnknownTokenAddress as e:
return api_error(str(e), status_code=HTTPStatus.NOT_FOUND)
def get_channel(
self,
registry_address: typing.PaymentNetworkID,
token_address: typing.TokenAddress,
partner_address: typing.Address,
):
log.debug(
"Getting channel",
node=pex(self.raiden_api.address),
registry_address=to_checksum_address(registry_address),
token_address=to_checksum_address(token_address),
partner_address=to_checksum_address(partner_address),
)
try:
channel_state = self.raiden_api.get_channel(
registry_address=registry_address,
token_address=token_address,
partner_address=partner_address,
)
result = self.channel_schema.dump(channel_state)
return api_response(result=result.data)
except ChannelNotFound as e:
return api_error(errors=str(e), status_code=HTTPStatus.NOT_FOUND)
def get_partners_by_token(self, registry_address: typing.PaymentNetworkID,
token_address: typing.TokenAddress):
log.debug(
"Getting partners by token",
node=pex(self.raiden_api.address),
registry_address=to_checksum_address(registry_address),
token_address=to_checksum_address(token_address),
)
return_list = []
try:
raiden_service_result = self.raiden_api.get_channel_list(
registry_address, token_address)
except InvalidAddress as e:
return api_error(errors=str(e), status_code=HTTPStatus.CONFLICT)
for result in raiden_service_result:
return_list.append({
"partner_address":
result.partner_state.address,
"channel":
url_for(
# TODO: Somehow nicely parameterize this for future versions
"v1_resources.channelsresourcebytokenandpartneraddress",
token_address=token_address,
partner_address=result.partner_state.address,
),
})
schema_list = PartnersPerTokenList(return_list)
result = self.partner_per_token_list_schema.dump(schema_list)
return api_response(result=result.data)
def initiate_payment(
self,
registry_address: typing.PaymentNetworkID,
token_address: typing.TokenAddress,
target_address: typing.Address,
amount: typing.TokenAmount,
identifier: typing.PaymentID,
secret: typing.Secret,
secret_hash: typing.SecretHash,
):
log.debug(
"Initiating payment",
node=pex(self.raiden_api.address),
registry_address=to_checksum_address(registry_address),
token_address=to_checksum_address(token_address),
target_address=to_checksum_address(target_address),
amount=amount,
payment_identifier=identifier,
secret=secret,
secret_hash=secret_hash,
)
if identifier is None:
identifier = create_default_identifier()
try:
payment_status = self.raiden_api.transfer(
registry_address=registry_address,
token_address=token_address,
target=target_address,
amount=amount,
identifier=identifier,
secret=secret,
secrethash=secret_hash,
)
except (
InvalidAmount,
InvalidAddress,
InvalidSecret,
InvalidSecretHash,
PaymentConflict,
UnknownTokenAddress,
) as e:
return api_error(errors=str(e), status_code=HTTPStatus.CONFLICT)
except InsufficientFunds as e:
return api_error(errors=str(e),
status_code=HTTPStatus.PAYMENT_REQUIRED)
if payment_status.payment_done.get() is False:
return api_error(
errors="Payment couldn't be completed "
"(insufficient funds, no route to target or target offline).",
status_code=HTTPStatus.CONFLICT,
)
secret = payment_status.payment_done.get()
payment = {
"initiator_address": self.raiden_api.address,
"registry_address": registry_address,
"token_address": token_address,
"target_address": target_address,
"amount": amount,
"identifier": identifier,
"secret": secret,
"secret_hash": sha3(secret),
}
result = self.payment_schema.dump(payment)
return api_response(result=result.data)
def _deposit(
self,
registry_address: typing.PaymentNetworkID,
channel_state: NettingChannelState,
total_deposit: typing.TokenAmount,
):
log.debug(
"Depositing to channel",
node=pex(self.raiden_api.address),
registry_address=to_checksum_address(registry_address),
channel_identifier=channel_state.identifier,
total_deposit=total_deposit,
)
if channel.get_status(channel_state) != CHANNEL_STATE_OPENED:
return api_error(
errors="Can't set total deposit on a closed channel",
status_code=HTTPStatus.CONFLICT,
)
try:
self.raiden_api.set_total_channel_deposit(
registry_address,
channel_state.token_address,
channel_state.partner_state.address,
total_deposit,
)
except InsufficientFunds as e:
return api_error(errors=str(e),
status_code=HTTPStatus.PAYMENT_REQUIRED)
except DepositOverLimit as e:
return api_error(errors=str(e), status_code=HTTPStatus.CONFLICT)
except DepositMismatch as e:
return api_error(errors=str(e), status_code=HTTPStatus.CONFLICT)
updated_channel_state = self.raiden_api.get_channel(
registry_address, channel_state.token_address,
channel_state.partner_state.address)
result = self.channel_schema.dump(updated_channel_state)
return api_response(result=result.data)
def _close(self, registry_address: typing.PaymentNetworkID,
channel_state: NettingChannelState):
log.debug(
"Closing channel",
node=pex(self.raiden_api.address),
registry_address=to_checksum_address(registry_address),
channel_identifier=channel_state.identifier,
)
if channel.get_status(channel_state) != CHANNEL_STATE_OPENED:
return api_error(
errors="Attempted to close an already closed channel",
status_code=HTTPStatus.CONFLICT,
)
try:
self.raiden_api.channel_close(registry_address,
channel_state.token_address,
channel_state.partner_state.address)
except InsufficientFunds as e:
return api_error(errors=str(e),
status_code=HTTPStatus.PAYMENT_REQUIRED)
updated_channel_state = self.raiden_api.get_channel(
registry_address, channel_state.token_address,
channel_state.partner_state.address)
result = self.channel_schema.dump(updated_channel_state)
return api_response(result=result.data)
def patch_channel(
self,
registry_address: typing.PaymentNetworkID,
token_address: typing.TokenAddress,
partner_address: typing.Address,
total_deposit: typing.TokenAmount = None,
state: str = None,
):
log.debug(
"Patching channel",
node=pex(self.raiden_api.address),
registry_address=to_checksum_address(registry_address),
token_address=to_checksum_address(token_address),
partner_address=to_checksum_address(partner_address),
total_deposit=total_deposit,
state=state,
)
if total_deposit is not None and state is not None:
return api_error(
errors=
"Can not update a channel's total deposit and state at the same time",
status_code=HTTPStatus.CONFLICT,
)
if total_deposit is None and state is None:
return api_error(
errors=
"Nothing to do. Should either provide 'total_deposit' or 'state' argument",
status_code=HTTPStatus.BAD_REQUEST,
)
if total_deposit and total_deposit < 0:
return api_error(errors="Amount to deposit must not be negative.",
status_code=HTTPStatus.CONFLICT)
try:
channel_state = self.raiden_api.get_channel(
registry_address=registry_address,
token_address=token_address,
partner_address=partner_address,
)
except ChannelNotFound:
return api_error(
errors="Requested channel for token {} and partner {} not found"
.format(to_checksum_address(token_address),
to_checksum_address(partner_address)),
status_code=HTTPStatus.CONFLICT,
)
except InvalidAddress as e:
return api_error(errors=str(e), status_code=HTTPStatus.CONFLICT)
if total_deposit is not None:
result = self._deposit(registry_address, channel_state,
total_deposit)
elif state == CHANNEL_STATE_CLOSED:
result = self._close(registry_address, channel_state)
else: # should never happen, channel_state is validated in the schema
result = api_error(
errors="Provided invalid channel state {}".format(state),
status_code=HTTPStatus.BAD_REQUEST,
)
return result
def get_pending_transfers(self, token_address=None, partner_address=None):
try:
return api_response(
self.raiden_api.get_pending_transfers(
token_address=token_address,
partner_address=partner_address))
except (ChannelNotFound, UnknownTokenAddress) as e:
return api_error(errors=str(e), status_code=HTTPStatus.NOT_FOUND)