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###############################################################################
#
# The MIT License (MIT)
#
# Copyright (c) Crossbar.io Technologies 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.
#
###############################################################################
import sys
from twisted.internet import reactor
from twisted.python import log
from twisted.web.server import Site
from twisted.web.static import File
from autobahn.twisted.websocket import WebSocketServerFactory, \
WebSocketServerProtocol, \
listenWS
from autobahn.websocket.compress import *
class EchoServerProtocol(WebSocketServerProtocol):
def onConnect(self, request):
print("WebSocket connection request by {}".format(request.peer))
def onOpen(self):
print("WebSocket extensions in use: {}".format(self.websocket_extensions_in_use))
def onMessage(self, payload, isBinary):
self.sendMessage(payload, isBinary)
if __name__ == '__main__':
log.startLogging(sys.stdout)
factory = WebSocketServerFactory(u"ws://127.0.0.1:9000")
factory.protocol = EchoServerProtocol
# factory.setProtocolOptions(autoFragmentSize = 4)
# Enable WebSocket extension "permessage-deflate". This is all you
# need to do (unless you know what you are doing .. see below)!
def accept0(offers):
for offer in offers:
if isinstance(offer, PerMessageDeflateOffer):
return PerMessageDeflateOfferAccept(offer)
# Enable experimental compression extensions "permessage-snappy"
# and "permessage-bzip2"
def accept1(offers):
for offer in offers:
if isinstance(offer, PerMessageSnappyOffer):
return PerMessageSnappyOfferAccept(offer)
elif isinstance(offer, PerMessageBzip2Offer):
return PerMessageBzip2OfferAccept(offer)
elif isinstance(offer, PerMessageDeflateOffer):
return PerMessageDeflateOfferAccept(offer)
# permessage-deflate, server requests the client to do no
# context takeover
def accept2(offers):
for offer in offers:
if isinstance(offer, PerMessageDeflateOffer):
if offer.acceptNoContextTakeover:
return PerMessageDeflateOfferAccept(offer, requestNoContextTakeover=True)
# permessage-deflate, server requests the client to do no
# context takeover, and does not context takeover also
def accept3(offers):
for offer in offers:
if isinstance(offer, PerMessageDeflateOffer):
if offer.acceptNoContextTakeover:
return PerMessageDeflateOfferAccept(offer, requestNoContextTakeover=True, noContextTakeover=True)
# permessage-deflate, server requests the client to do use
# max window bits specified
def accept4(offers):
for offer in offers:
if isinstance(offer, PerMessageDeflateOffer):
if offer.acceptMaxWindowBits:
return PerMessageDeflateOfferAccept(offer, request_max_window_bits=8)
# factory.setProtocolOptions(perMessageCompressionAccept = accept0)
# factory.setProtocolOptions(perMessageCompressionAccept = accept1)
# factory.setProtocolOptions(perMessageCompressionAccept = accept2)
# factory.setProtocolOptions(perMessageCompressionAccept = accept3)
factory.setProtocolOptions(perMessageCompressionAccept=accept4)
listenWS(factory)
webdir = File(".")
web = Site(webdir)
reactor.listenTCP(8080, web)
reactor.run()
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