def __init__(self, rpc_connection, stream_connection):
self._types = Types()
self._rpc_connection = rpc_connection
self._rpc_connection_lock = threading.Lock()
self._stream_connection = stream_connection
self._request_type = self._types.as_type("KRPC.Request")
self._response_type = self._types.as_type("KRPC.Response")
# Set up the main KRPC service
self.krpc = KRPC(self)
services = self.krpc.get_services().services
# Create class types
# TODO: is this needed?!?
for service in services:
for procedure in service.procedures:
try:
name = Attributes.get_class_name(procedure.attributes)
self._types.as_type("Class(" + service.name + "." + name + ")")
except ValueError:
pass
# Set up services
for service in services:
if service.name != "KRPC":
setattr(self, _to_snake_case(service.name), create_service(self, service))
# Set up stream update thread
if stream_connection is not None:
self._stream_thread = threading.Thread(target=krpc.stream.update_thread, args=(stream_connection,))
self._stream_thread.daemon = True
self._stream_thread.start()
else:
self._stream_thread = None
def __init__(self, rpc_connection, stream_connection):
self._types = Types()
self._rpc_connection = rpc_connection
self._rpc_connection_lock = threading.Lock()
self._stream_connection = stream_connection
self._request_type = self._types.as_type('KRPC.Request')
self._response_type = self._types.as_type('KRPC.Response')
# Set up the main KRPC service
self.krpc = KRPC(self)
services = self.krpc.get_services().services
# Create class types
#TODO: is this needed?!?
#for service in services:
# for procedure in service.procedures:
# try:
# name = Attributes.get_class_name(procedure.attributes)
# self._types.as_type('Class(' + service.name + '.' + name + ')')
# except ValueError:
# pass
# Set up services
for service in services:
if service.name != 'KRPC':
setattr(self, _to_snake_case(service.name),
create_service(self, service))
# Set up stream update thread
if stream_connection is not None:
self._stream_thread_stop = threading.Event()
self._stream_thread = threading.Thread(
target=krpc.stream.update_thread,
args=(stream_connection, self._stream_thread_stop))
self._stream_thread.daemon = True
self._stream_thread.start()
else:
self._stream_thread = None
def __init__(self, rpc_connection, stream_connection):
self._types = Types()
self._rpc_connection = rpc_connection
self._rpc_connection_lock = threading.Lock()
self._stream_connection = stream_connection
self._request_type = self._types.as_type('KRPC.Request')
self._response_type = self._types.as_type('KRPC.Response')
# Set up the main KRPC service
self.krpc = KRPC(self)
services = self.krpc.get_services().services
# Create class types
#TODO: is this needed?!?
#for service in services:
# for procedure in service.procedures:
# try:
# name = Attributes.get_class_name(procedure.attributes)
# self._types.as_type('Class(' + service.name + '.' + name + ')')
# except ValueError:
# pass
# Set up services
for service in services:
if service.name != 'KRPC':
setattr(self, snake_case(service.name), create_service(self, service))
# Set up stream update thread
if stream_connection is not None:
self._stream_thread_stop = threading.Event()
self._stream_thread = threading.Thread(target=krpc.stream.update_thread,
args=(stream_connection,self._stream_thread_stop))
self._stream_thread.daemon = True
self._stream_thread.start()
else:
self._stream_thread = None
class Client(object):
"""
A kRPC client, through which all Remote Procedure Calls are made.
Services provided by the server that the client connects to are automatically added.
RPCs can be made using client.ServiceName.ProcedureName(parameter)
"""
def __init__(self, rpc_connection, stream_connection):
self._types = Types()
self._rpc_connection = rpc_connection
self._rpc_connection_lock = threading.Lock()
self._stream_connection = stream_connection
self._request_type = self._types.as_type("KRPC.Request")
self._response_type = self._types.as_type("KRPC.Response")
# Set up the main KRPC service
self.krpc = KRPC(self)
services = self.krpc.get_services().services
# Create class types
# TODO: is this needed?!?
for service in services:
for procedure in service.procedures:
try:
name = Attributes.get_class_name(procedure.attributes)
self._types.as_type("Class(" + service.name + "." + name + ")")
except ValueError:
pass
# Set up services
for service in services:
if service.name != "KRPC":
setattr(self, _to_snake_case(service.name), create_service(self, service))
# Set up stream update thread
if stream_connection is not None:
self._stream_thread = threading.Thread(target=krpc.stream.update_thread, args=(stream_connection,))
self._stream_thread.daemon = True
self._stream_thread.start()
else:
self._stream_thread = None
def close(self):
self._rpc_connection.close()
if self._stream_connection is not None:
self._stream_connection.close()
def __enter__(self):
return self
def __exit__(self, typ, value, traceback):
self.close()
def add_stream(self, func, *args, **kwargs):
if self._stream_connection is None:
raise RuntimeError("Not connected to stream server")
return krpc.stream.add_stream(self, func, *args, **kwargs)
@contextmanager
def stream(self, func, *args, **kwargs):
""" 'with' support """
s = self.add_stream(func, *args, **kwargs)
try:
yield s
finally:
s.remove()
def _invoke(self, service, procedure, args=[], kwargs={}, param_names=[], param_types=[], return_type=None):
""" Execute an RPC """
# Build the request
request = self._build_request(service, procedure, args, kwargs, param_names, param_types, return_type)
# Send the request
with self._rpc_connection_lock:
self._send_request(request)
response = self._receive_response()
# Check for an error response
if response.HasField("error"):
raise RPCError(response.error)
# Decode the response and return the (optional) result
result = None
if return_type is not None:
result = Decoder.decode(response.return_value, return_type)
return result
def _build_request(self, service, procedure, args=[], kwargs={}, param_names=[], param_types=[], return_type=None):
""" Build a KRPC.Request object """
def encode_argument(i, value):
typ = param_types[i]
if type(value) != typ.python_type:
# Try coercing to the correct type
try:
value = self._types.coerce_to(value, typ)
except ValueError:
raise TypeError(
"%s.%s() argument %d must be a %s, got a %s"
% (service, procedure, i, typ.python_type, type(value))
)
return Encoder.encode(value, typ)
if len(args) > len(param_types):
raise TypeError(
"%s.%s() takes exactly %d arguments (%d given)" % (service, procedure, len(param_types), len(args))
)
arguments = []
nargs = len(args)
for i, param in enumerate(param_names):
add = False
if i < nargs and not isinstance(args[i], DefaultArgument):
arg = args[i]
add = True
elif param in kwargs:
arg = args[param]
add = True
if add:
argument = krpc.schema.KRPC.Argument()
argument.position = i
argument.value = encode_argument(i, arg)
arguments.append(argument)
# Build the request object
request = krpc.schema.KRPC.Request()
request.service = service
request.procedure = procedure
request.arguments.extend(arguments)
return request
def _send_request(self, request):
""" Send a KRPC.Request object to the server """
data = Encoder.encode_delimited(request, self._request_type)
self._rpc_connection.send(data)
def _receive_response(self):
""" Receive data from the server and decode it into a KRPC.Response object """
# Read the size and position of the response message
data = b""
while True:
try:
data += self._rpc_connection.partial_receive(1)
size, position = Decoder.decode_size_and_position(data)
break
except IndexError:
pass
# Read and decode the response message
data = self._rpc_connection.receive(size)
return Decoder.decode(data, self._response_type)
except IndexError:
pass
# Receive the message data
data = conn.recv(size)
# Decode the message
msg = msg_type()
msg.ParseFromString(data)
return msg
# Open a TCP/IP socket to the RPC server
rpc_conn = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
rpc_conn.connect(('127.0.0.1', 50000))
# Send an RPC connection request
request = KRPC.ConnectionRequest()
request.type = KRPC.ConnectionRequest.RPC
request.client_name = 'Jeb'
send_message(rpc_conn, request)
# Receive the connection response
response = recv_message(rpc_conn, KRPC.ConnectionResponse)
# Check the connection was successful
if response.status != KRPC.ConnectionResponse.OK:
raise RuntimeError('Connection failed: ' + response.message)
print('Connected to RPC server')
# Print out the clients identifier
print('RPC client idenfitier = %s' %
binascii.hexlify(bytearray(response.client_identifier)).decode('utf8'))
except IndexError:
pass
# Receive the message data
data = conn.recv(size)
# Decode the message
msg = msg_type()
msg.ParseFromString(data)
return msg
# Open a TCP/IP socket to the RPC server
rpc_conn = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
rpc_conn.connect(('127.0.0.1', 50000))
# Send an RPC connection request
request = KRPC.ConnectionRequest()
request.type = KRPC.ConnectionRequest.RPC
request.client_name = 'Jeb'
send_message(rpc_conn, request)
# Receive the connection response
response = recv_message(rpc_conn, KRPC.ConnectionResponse)
# Check the connection was successful
if response.status != KRPC.ConnectionResponse.OK:
raise RuntimeError('Connection failed: ' + response.message)
print('Connected to RPC server')
# Invoke the KRPC.GetStatus RPC
call = KRPC.ProcedureCall()
call.service = 'KRPC'
class Client(object):
"""
A kRPC client, through which all Remote Procedure Calls are made.
Services provided by the server that the client connects to are automatically added.
RPCs can be made using client.ServiceName.ProcedureName(parameter)
"""
def __init__(self, rpc_connection, stream_connection):
self._types = Types()
self._rpc_connection = rpc_connection
self._rpc_connection_lock = threading.Lock()
self._stream_connection = stream_connection
self._request_type = self._types.as_type('KRPC.Request')
self._response_type = self._types.as_type('KRPC.Response')
# Set up the main KRPC service
self.krpc = KRPC(self)
services = self.krpc.get_services().services
# Create class types
#TODO: is this needed?!?
#for service in services:
# for procedure in service.procedures:
# try:
# name = Attributes.get_class_name(procedure.attributes)
# self._types.as_type('Class(' + service.name + '.' + name + ')')
# except ValueError:
# pass
# Set up services
for service in services:
if service.name != 'KRPC':
setattr(self, _to_snake_case(service.name),
create_service(self, service))
# Set up stream update thread
if stream_connection is not None:
self._stream_thread_stop = threading.Event()
self._stream_thread = threading.Thread(
target=krpc.stream.update_thread,
args=(stream_connection, self._stream_thread_stop))
self._stream_thread.daemon = True
self._stream_thread.start()
else:
self._stream_thread = None
def close(self):
self._rpc_connection.close()
if self._stream_thread is not None:
self._stream_thread_stop.set()
self._stream_thread.join()
def __enter__(self):
return self
def __exit__(self, typ, value, traceback):
self.close()
def add_stream(self, func, *args, **kwargs):
if self._stream_connection is None:
raise RuntimeError('Not connected to stream server')
return krpc.stream.add_stream(self, func, *args, **kwargs)
@contextmanager
def stream(self, func, *args, **kwargs):
""" 'with' support """
s = self.add_stream(func, *args, **kwargs)
try:
yield s
finally:
s.remove()
def _invoke(self,
service,
procedure,
args=[],
kwargs={},
param_names=[],
param_types=[],
return_type=None):
""" Execute an RPC """
# Build the request
request = self._build_request(service, procedure, args, kwargs,
param_names, param_types, return_type)
# Send the request
with self._rpc_connection_lock:
self._send_request(request)
response = self._receive_response()
# Check for an error response
if response.has_error:
raise RPCError(response.error)
# Decode the response and return the (optional) result
result = None
if return_type is not None:
result = Decoder.decode(response.return_value, return_type)
return result
def _build_request(self,
service,
procedure,
args=[],
kwargs={},
param_names=[],
param_types=[],
return_type=None):
""" Build a KRPC.Request object """
def encode_argument(i, value):
typ = param_types[i]
if type(value) != typ.python_type:
# Try coercing to the correct type
try:
value = self._types.coerce_to(value, typ)
except ValueError:
raise TypeError('%s.%s() argument %d must be a %s, got a %s' % \
(service, procedure, i, typ.python_type, type(value)))
return Encoder.encode(value, typ)
if len(args) > len(param_types):
raise TypeError('%s.%s() takes exactly %d arguments (%d given)' % \
(service, procedure, len(param_types), len(args)))
arguments = []
nargs = len(args)
for i, param in enumerate(param_names):
add = False
if i < nargs and not isinstance(args[i], DefaultArgument):
arg = args[i]
add = True
elif param in kwargs:
arg = kwargs[param]
add = True
if add:
argument = krpc.schema.KRPC.Argument()
argument.position = i
argument.value = encode_argument(i, arg)
arguments.append(argument)
# Build the request object
request = krpc.schema.KRPC.Request()
request.service = service
request.procedure = procedure
request.arguments.extend(arguments)
return request
def _send_request(self, request):
""" Send a KRPC.Request object to the server """
data = Encoder.encode_delimited(request, self._request_type)
self._rpc_connection.send(data)
def _receive_response(self):
""" Receive data from the server and decode it into a KRPC.Response object """
# Read the size and position of the response message
data = b''
while True:
try:
data += self._rpc_connection.partial_receive(1)
size, position = Decoder.decode_size_and_position(data)
break
except IndexError:
pass
# Read and decode the response message
data = self._rpc_connection.receive(size)
return Decoder.decode(data, self._response_type)
