141 lines
3.8 KiB
Python
141 lines
3.8 KiB
Python
###############################################################################
|
|
##
|
|
## Copyright (C) 2013 Tavendo GmbH
|
|
##
|
|
## Licensed under the Apache License, Version 2.0 (the "License");
|
|
## you may not use this file except in compliance with the License.
|
|
## You may obtain a copy of the License at
|
|
##
|
|
## http://www.apache.org/licenses/LICENSE-2.0
|
|
##
|
|
## Unless required by applicable law or agreed to in writing, software
|
|
## distributed under the License is distributed on an "AS IS" BASIS,
|
|
## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
## See the License for the specific language governing permissions and
|
|
## limitations under the License.
|
|
##
|
|
###############################################################################
|
|
|
|
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.http import HttpException
|
|
|
|
|
|
|
|
class BaseService:
|
|
"""
|
|
Simple base for our services.
|
|
"""
|
|
def __init__(self, proto):
|
|
self.proto = proto
|
|
|
|
def onOpen(self):
|
|
pass
|
|
|
|
def onClose(self, wasClean, code, reason):
|
|
pass
|
|
|
|
def onMessage(self, payload, isBinary):
|
|
pass
|
|
|
|
|
|
class Echo1Service(BaseService):
|
|
"""
|
|
Awesome Echo Service 1.
|
|
"""
|
|
def onMessage(self, payload, isBinary):
|
|
if not isBinary:
|
|
msg = "Echo 1 - {}".format(payload.decode('utf8'))
|
|
self.proto.sendMessage(msg.encode('utf8'))
|
|
|
|
|
|
|
|
class Echo2Service(BaseService):
|
|
"""
|
|
Awesome Echo Service 2.
|
|
"""
|
|
def onMessage(self, payload, isBinary):
|
|
if not isBinary:
|
|
msg = "Echo 2 - {}".format(payload.decode('utf8'))
|
|
self.proto.sendMessage(msg.encode('utf8'))
|
|
|
|
|
|
|
|
class ServiceServerProtocol(WebSocketServerProtocol):
|
|
|
|
SERVICEMAP = {'/echo1': Echo1Service,
|
|
'/echo2': Echo2Service}
|
|
|
|
def __init__(self):
|
|
self.service = None
|
|
|
|
def onConnect(self, request):
|
|
## request has all the information from the initial
|
|
## WebSocket opening handshake ..
|
|
print(request.peer)
|
|
print(request.headers)
|
|
print(request.host)
|
|
print(request.path)
|
|
print(request.params)
|
|
print(request.version)
|
|
print(request.origin)
|
|
print(request.protocols)
|
|
print(request.extensions)
|
|
|
|
## We map to services based on path component of the URL the
|
|
## WebSocket client requested. This is just an example. We could
|
|
## use other information from request, such has HTTP headers,
|
|
## WebSocket subprotocol, WebSocket origin etc etc
|
|
##
|
|
if self.SERVICEMAP.has_key(request.path):
|
|
self.service = self.SERVICEMAP[request.path](self)
|
|
else:
|
|
err = "No service under %s" % request.path
|
|
print(err)
|
|
raise HttpException(404, err)
|
|
|
|
def onOpen(self):
|
|
if self.service:
|
|
self.service.onOpen()
|
|
|
|
def onMessage(self, payload, isBinary):
|
|
if self.service:
|
|
self.service.onMessage(payload, isBinary)
|
|
|
|
def onClose(self, wasClean, code, reason):
|
|
if self.service:
|
|
self.service.onClose(wasClean, code, reason)
|
|
|
|
|
|
|
|
if __name__ == '__main__':
|
|
|
|
if len(sys.argv) > 1 and sys.argv[1] == 'debug':
|
|
log.startLogging(sys.stdout)
|
|
debug = True
|
|
else:
|
|
debug = False
|
|
|
|
factory = WebSocketServerFactory("ws://localhost:9000",
|
|
debug = debug,
|
|
debugCodePaths = debug)
|
|
|
|
factory.protocol = ServiceServerProtocol
|
|
factory.setProtocolOptions(allowHixie76 = True, failByDrop = False)
|
|
listenWS(factory)
|
|
|
|
webdir = File(".")
|
|
web = Site(webdir)
|
|
reactor.listenTCP(8080, web)
|
|
|
|
reactor.run()
|