deb-python-autobahn/examples/twisted/websocket/echo_service/echows/echoservice.py

89 lines
2.9 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.
#
###############################################################################
import os
import pkg_resources
from twisted.python import log
from twisted.internet import reactor
from twisted.application import service
from twisted.web.server import Site
from twisted.web.static import File
from autobahn.websocket import WebSocketServerFactory, \
WebSocketServerProtocol
from autobahn.resource import WebSocketResource
class EchoServerProtocol(WebSocketServerProtocol):
def onMessage(self, msg, binary):
self.sendMessage(msg, binary)
class EchoService(service.Service):
"""
WebSocket Echo service - this runs a Twisted Web site with a WebSocket
echo server running under path "/ws".
"""
def __init__(self, port=8080, debug=False):
self.port = port
self.debug = debug
def startService(self):
factory = WebSocketServerFactory(u"ws://127.0.0.1:%d" % self.port, debug=self.debug)
factory.protocol = EchoServerProtocol
# FIXME: Site.start/stopFactory should start/stop factories wrapped as Resources
factory.startFactory()
resource = WebSocketResource(factory)
# we server static files under "/" ..
webdir = os.path.abspath(pkg_resources.resource_filename("echows", "web"))
root = File(webdir)
# and our WebSocket server under "/ws"
root.putChild(u"ws", resource)
# both under one Twisted Web Site
site = Site(root)
self.site = site
self.factory = factory
self.listener = reactor.listenTCP(self.port, site)
def stopService(self):
self.factory.stopFactory()
self.site.stopFactory()
self.listener.stopListening()