343 lines
10 KiB
Python
343 lines
10 KiB
Python
###############################################################################
|
|
#
|
|
# The MIT License (MIT)
|
|
#
|
|
# Copyright (c) Tavendo GmbH
|
|
#
|
|
# Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
# of this software and associated documentation files (the "Software"), to deal
|
|
# in the Software without restriction, including without limitation the rights
|
|
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
# copies of the Software, and to permit persons to whom the Software is
|
|
# furnished to do so, subject to the following conditions:
|
|
#
|
|
# The above copyright notice and this permission notice shall be included in
|
|
# all copies or substantial portions of the Software.
|
|
#
|
|
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
# THE SOFTWARE.
|
|
#
|
|
###############################################################################
|
|
|
|
from collections import deque
|
|
|
|
from autobahn.wamp import websocket
|
|
from autobahn.websocket import protocol
|
|
from autobahn.websocket import http
|
|
|
|
try:
|
|
import asyncio
|
|
from asyncio import iscoroutine
|
|
from asyncio import Future
|
|
except ImportError:
|
|
# Trollius >= 0.3 was renamed
|
|
# noinspection PyUnresolvedReferences
|
|
import trollius as asyncio
|
|
from trollius import iscoroutine
|
|
from trollius import Future
|
|
|
|
__all__ = (
|
|
'WebSocketAdapterProtocol',
|
|
'WebSocketServerProtocol',
|
|
'WebSocketClientProtocol',
|
|
'WebSocketAdapterFactory',
|
|
'WebSocketServerFactory',
|
|
'WebSocketClientFactory',
|
|
|
|
'WampWebSocketServerProtocol',
|
|
'WampWebSocketClientProtocol',
|
|
'WampWebSocketServerFactory',
|
|
'WampWebSocketClientFactory',
|
|
)
|
|
|
|
|
|
def yields(value):
|
|
"""
|
|
Returns ``True`` iff the value yields.
|
|
|
|
.. seealso:: http://stackoverflow.com/questions/20730248/maybedeferred-analog-with-asyncio
|
|
"""
|
|
return isinstance(value, Future) or iscoroutine(value)
|
|
|
|
|
|
class WebSocketAdapterProtocol(asyncio.Protocol):
|
|
"""
|
|
Adapter class for asyncio-based WebSocket client and server protocols.
|
|
"""
|
|
|
|
def connection_made(self, transport):
|
|
self.transport = transport
|
|
|
|
self.receive_queue = deque()
|
|
self._consume()
|
|
|
|
try:
|
|
peer = transport.get_extra_info('peername')
|
|
try:
|
|
# FIXME: tcp4 vs tcp6
|
|
self.peer = "tcp:%s:%d" % (peer[0], peer[1])
|
|
except:
|
|
# e.g. Unix Domain sockets don't have host/port
|
|
self.peer = "unix:{0}".format(peer)
|
|
except:
|
|
self.peer = "?"
|
|
|
|
self._connectionMade()
|
|
|
|
def connection_lost(self, exc):
|
|
self._connectionLost(exc)
|
|
self.transport = None
|
|
|
|
def _consume(self):
|
|
self.waiter = Future()
|
|
|
|
def process(_):
|
|
while len(self.receive_queue):
|
|
data = self.receive_queue.popleft()
|
|
if self.transport:
|
|
self._dataReceived(data)
|
|
else:
|
|
print("WebSocketAdapterProtocol._consume: no transport")
|
|
self._consume()
|
|
|
|
self.waiter.add_done_callback(process)
|
|
|
|
def data_received(self, data):
|
|
self.receive_queue.append(data)
|
|
if not self.waiter.done():
|
|
self.waiter.set_result(None)
|
|
|
|
# noinspection PyUnusedLocal
|
|
def _closeConnection(self, abort=False):
|
|
self.transport.close()
|
|
|
|
def _onOpen(self):
|
|
res = self.onOpen()
|
|
if yields(res):
|
|
asyncio.async(res)
|
|
|
|
def _onMessageBegin(self, isBinary):
|
|
res = self.onMessageBegin(isBinary)
|
|
if yields(res):
|
|
asyncio.async(res)
|
|
|
|
def _onMessageFrameBegin(self, length):
|
|
res = self.onMessageFrameBegin(length)
|
|
if yields(res):
|
|
asyncio.async(res)
|
|
|
|
def _onMessageFrameData(self, payload):
|
|
res = self.onMessageFrameData(payload)
|
|
if yields(res):
|
|
asyncio.async(res)
|
|
|
|
def _onMessageFrameEnd(self):
|
|
res = self.onMessageFrameEnd()
|
|
if yields(res):
|
|
asyncio.async(res)
|
|
|
|
def _onMessageFrame(self, payload):
|
|
res = self.onMessageFrame(payload)
|
|
if yields(res):
|
|
asyncio.async(res)
|
|
|
|
def _onMessageEnd(self):
|
|
res = self.onMessageEnd()
|
|
if yields(res):
|
|
asyncio.async(res)
|
|
|
|
def _onMessage(self, payload, isBinary):
|
|
res = self.onMessage(payload, isBinary)
|
|
if yields(res):
|
|
asyncio.async(res)
|
|
|
|
def _onPing(self, payload):
|
|
res = self.onPing(payload)
|
|
if yields(res):
|
|
asyncio.async(res)
|
|
|
|
def _onPong(self, payload):
|
|
res = self.onPong(payload)
|
|
if yields(res):
|
|
asyncio.async(res)
|
|
|
|
def _onClose(self, wasClean, code, reason):
|
|
res = self.onClose(wasClean, code, reason)
|
|
if yields(res):
|
|
asyncio.async(res)
|
|
|
|
def registerProducer(self, producer, streaming):
|
|
raise Exception("not implemented")
|
|
|
|
|
|
class WebSocketServerProtocol(WebSocketAdapterProtocol, protocol.WebSocketServerProtocol):
|
|
"""
|
|
Base class for asyncio-based WebSocket server protocols.
|
|
"""
|
|
|
|
def _onConnect(self, request):
|
|
# onConnect() will return the selected subprotocol or None
|
|
# or a pair (protocol, headers) or raise an HttpException
|
|
##
|
|
# noinspection PyBroadException
|
|
try:
|
|
res = self.onConnect(request)
|
|
# if yields(res):
|
|
# res = yield from res
|
|
except http.HttpException as exc:
|
|
self.failHandshake(exc.reason, exc.code)
|
|
except Exception:
|
|
self.failHandshake(http.INTERNAL_SERVER_ERROR[1], http.INTERNAL_SERVER_ERROR[0])
|
|
else:
|
|
self.succeedHandshake(res)
|
|
|
|
|
|
class WebSocketClientProtocol(WebSocketAdapterProtocol, protocol.WebSocketClientProtocol):
|
|
"""
|
|
Base class for asyncio-based WebSocket client protocols.
|
|
"""
|
|
|
|
def _onConnect(self, response):
|
|
res = self.onConnect(response)
|
|
if yields(res):
|
|
asyncio.async(res)
|
|
|
|
|
|
class WebSocketAdapterFactory:
|
|
"""
|
|
Adapter class for asyncio-based WebSocket client and server factories.
|
|
"""
|
|
|
|
def _log(self, msg):
|
|
print(msg)
|
|
|
|
def _callLater(self, delay, fun):
|
|
return self.loop.call_later(delay, fun)
|
|
|
|
def __call__(self):
|
|
proto = self.protocol()
|
|
proto.factory = self
|
|
return proto
|
|
|
|
|
|
class WebSocketServerFactory(WebSocketAdapterFactory, protocol.WebSocketServerFactory):
|
|
"""
|
|
Base class for asyncio-based WebSocket server factories.
|
|
"""
|
|
|
|
def __init__(self, *args, **kwargs):
|
|
"""
|
|
In addition to all arguments to the constructor of
|
|
:class:`autobahn.websocket.protocol.WebSocketServerFactory`,
|
|
you can supply a ``loop`` keyword argument to specify the
|
|
asyncio event loop to be used.
|
|
"""
|
|
if 'loop' in kwargs:
|
|
if kwargs['loop']:
|
|
self.loop = kwargs['loop']
|
|
else:
|
|
self.loop = asyncio.get_event_loop()
|
|
del kwargs['loop']
|
|
else:
|
|
self.loop = asyncio.get_event_loop()
|
|
|
|
protocol.WebSocketServerFactory.__init__(self, *args, **kwargs)
|
|
|
|
|
|
class WebSocketClientFactory(WebSocketAdapterFactory, protocol.WebSocketClientFactory):
|
|
"""
|
|
Base class for asyncio-baseed WebSocket client factories.
|
|
"""
|
|
|
|
def __init__(self, *args, **kwargs):
|
|
"""
|
|
In addition to all arguments to the constructor of
|
|
:class:`autobahn.websocket.protocol.WebSocketClientFactory`,
|
|
you can supply a ``loop`` keyword argument to specify the
|
|
asyncio event loop to be used.
|
|
"""
|
|
if 'loop' in kwargs:
|
|
if kwargs['loop']:
|
|
self.loop = kwargs['loop']
|
|
else:
|
|
self.loop = asyncio.get_event_loop()
|
|
del kwargs['loop']
|
|
else:
|
|
self.loop = asyncio.get_event_loop()
|
|
|
|
protocol.WebSocketClientFactory.__init__(self, *args, **kwargs)
|
|
|
|
|
|
class WampWebSocketServerProtocol(websocket.WampWebSocketServerProtocol, WebSocketServerProtocol):
|
|
"""
|
|
Base class for asyncio-based WAMP-over-WebSocket server protocols.
|
|
"""
|
|
|
|
|
|
class WampWebSocketServerFactory(websocket.WampWebSocketServerFactory, WebSocketServerFactory):
|
|
"""
|
|
Base class for asyncio-based WAMP-over-WebSocket server factories.
|
|
"""
|
|
|
|
protocol = WampWebSocketServerProtocol
|
|
|
|
def __init__(self, factory, *args, **kwargs):
|
|
|
|
if 'serializers' in kwargs:
|
|
serializers = kwargs['serializers']
|
|
del kwargs['serializers']
|
|
else:
|
|
serializers = None
|
|
|
|
if 'debug_wamp' in kwargs:
|
|
debug_wamp = kwargs['debug_wamp']
|
|
del kwargs['debug_wamp']
|
|
else:
|
|
debug_wamp = False
|
|
|
|
websocket.WampWebSocketServerFactory.__init__(self, factory, serializers, debug_wamp=debug_wamp)
|
|
|
|
kwargs['protocols'] = self._protocols
|
|
|
|
# noinspection PyCallByClass
|
|
WebSocketServerFactory.__init__(self, *args, **kwargs)
|
|
|
|
|
|
class WampWebSocketClientProtocol(websocket.WampWebSocketClientProtocol, WebSocketClientProtocol):
|
|
"""
|
|
Base class for asyncio-based WAMP-over-WebSocket client protocols.
|
|
"""
|
|
|
|
|
|
class WampWebSocketClientFactory(websocket.WampWebSocketClientFactory, WebSocketClientFactory):
|
|
"""
|
|
Base class for asyncio-based WAMP-over-WebSocket client factories.
|
|
"""
|
|
|
|
protocol = WampWebSocketClientProtocol
|
|
|
|
def __init__(self, factory, *args, **kwargs):
|
|
|
|
if 'serializers' in kwargs:
|
|
serializers = kwargs['serializers']
|
|
del kwargs['serializers']
|
|
else:
|
|
serializers = None
|
|
|
|
if 'debug_wamp' in kwargs:
|
|
debug_wamp = kwargs['debug_wamp']
|
|
del kwargs['debug_wamp']
|
|
else:
|
|
debug_wamp = False
|
|
|
|
websocket.WampWebSocketClientFactory.__init__(self, factory, serializers, debug_wamp=debug_wamp)
|
|
|
|
kwargs['protocols'] = self._protocols
|
|
|
|
WebSocketClientFactory.__init__(self, *args, **kwargs)
|