def _get_channel_state_from_server(self, grpc_channel, channel_id):
# Compile protobuf if needed
codegen_dir = Path.home().joinpath(".snet", "mpe_client", "state_service")
proto_dir = Path(__file__).absolute().parent.joinpath("resources", "proto")
if (not codegen_dir.joinpath("state_service_pb2.py").is_file()):
compile_proto(proto_dir, codegen_dir, proto_file = "state_service.proto")
# make PaymentChannelStateService.GetChannelState call to the daemon
stub_class, request_class, _ = import_protobuf_from_dir(codegen_dir, "GetChannelState")
message = self.w3.soliditySha3(["uint256"], [channel_id])
signature = self.ident.sign_message_after_soliditySha3(message)
request = request_class(channel_id = self.w3.toBytes(channel_id), signature = bytes(signature))
stub = stub_class(grpc_channel)
response = getattr(stub, "GetChannelState")(request)
# convert bytes to int
state = dict()
state["current_nonce"] = int.from_bytes(response.current_nonce, byteorder='big')
state["current_signed_amount"] = int.from_bytes(response.current_signed_amount, byteorder='big')
if (state["current_signed_amount"] > 0):
good = self._verify_my_signature(bytes(response.current_signature), self.get_mpe_address(), channel_id, state["current_nonce"], state["current_signed_amount"])
if (not good):
raise Exception("Error in _get_channel_state_from_server. My own signature from the server is not valid.")
return state
def _get_channel_state_from_server(self, grpc_channel, channel_id):
# Compile protobuf if needed
codegen_dir = Path.home().joinpath(".snet", "mpe_client", "state_service")
proto_dir = Path(__file__).absolute().parent.joinpath("resources", "proto")
if (not codegen_dir.joinpath("state_service_pb2.py").is_file()):
compile_proto(proto_dir, codegen_dir, proto_file = "state_service.proto")
# make PaymentChannelStateService.GetChannelState call to the daemon
stub_class, request_class, _ = import_protobuf_from_dir(codegen_dir, "GetChannelState")
message = self.w3.soliditySha3(["uint256"], [channel_id])
signature = self.ident.sign_message_after_soliditySha3(message)
request = request_class(channel_id = self.w3.toBytes(channel_id), signature = bytes(signature))
stub = stub_class(grpc_channel)
response = getattr(stub, "GetChannelState")(request)
# convert bytes to int
state = dict()
state["current_nonce"] = int.from_bytes(response.current_nonce, byteorder='big')
state["current_signed_amount"] = int.from_bytes(response.current_signed_amount, byteorder='big')
if (state["current_signed_amount"] > 0):
good = self._verify_my_signature(bytes(response.current_signature), self.get_mpe_address(), channel_id, state["current_nonce"], state["current_signed_amount"])
if (not good):
raise Exception("Error in _get_channel_state_from_server. My own signature from the server is not valid.")
return state
def get_request_class(org_id, service_id, method_name, service_name=""):
conf = Config()
client = MPEClientCommand(conf, {})
_, request_class, _ = import_protobuf_from_dir(client.get_service_spec_dir(
org_id, service_id),
method_name,
service_name=service_name)
return request_class
def _get_stub_and_request_classes(self, service_name):
""" import protobuf and return stub and request class """
# Compile protobuf if needed
codegen_dir = Path.home().joinpath(".snet", "mpe_client", "control_service")
proto_dir = Path(__file__).absolute().parent.joinpath("resources", "proto")
if (not codegen_dir.joinpath("control_service_pb2.py").is_file()):
compile_proto(proto_dir, codegen_dir, proto_file = "control_service.proto")
stub_class, request_class, _ = import_protobuf_from_dir(codegen_dir, service_name)
return stub_class, request_class
def _get_stub_and_request_classes(self, service_name):
""" import protobuf and return stub and request class """
# Compile protobuf if needed
codegen_dir = Path.home().joinpath(".snet", "mpe_client",
"control_service")
proto_dir = Path(__file__).absolute().parent.joinpath(
"resources", "proto")
if (not codegen_dir.joinpath("control_service_pb2.py").is_file()):
compile_proto(proto_dir,
codegen_dir,
proto_file="control_service.proto")
stub_class, request_class, _ = import_protobuf_from_dir(
codegen_dir, service_name)
return stub_class, request_class
def _import_protobuf_for_service(self):
spec_dir = self.get_service_spec_dir(self.args.org_id, self.args.service_id)
return import_protobuf_from_dir(spec_dir, self.args.method, self.args.service)
def _import_protobuf_for_channel(self):
channel_dir = self.get_channel_dir()
return import_protobuf_from_dir(channel_dir, self.args.method,
self.args.service)
def _import_protobuf_for_service(self):
spec_dir = self.get_service_spec_dir(self.args.org_id, self.args.service_id)
return import_protobuf_from_dir(spec_dir, self.args.method, self.args.service)
def _import_protobuf_for_channel(self, service_name, method_name):
channel_dir = self.get_channel_dir()
return import_protobuf_from_dir(channel_dir, method_name, service_name)
