# -*- coding: utf-8 -*-

__doc__ = """

A simple chat example using a CherryPy webserver.

$ pip install cherrypy

Then run it as follow:

$ python app.py

You will want to edit this file to change the

ws_addr variable used by the websocket object to connect

to your endpoint. Probably using the actual IP

address of your machine.

"""

import random

import os

import cherrypy

from ws4py.server.cherrypyserver import WebSocketPlugin, WebSocketTool

from ws4py.websocket import WebSocket

from ws4py.messaging import TextMessage

cur_dir = os.path.normpath(os.path.abspath(os.path.dirname(__file__)))

index_path = os.path.join(cur_dir, 'index.html')

index_page = file(index_path, 'r').read()

class ChatWebSocketHandler(WebSocket):

def received_message(self, m):

cherrypy.engine.publish('websocket-broadcast', m)

def closed(self, code, reason="A client left the room without a proper explanation."):

cherrypy.engine.publish('websocket-broadcast', TextMessage(reason))

class ChatWebApp(object):

@cherrypy.expose

def index(self):

return index_page % {'username': "User%d" % random.randint(50, 1000),

'ws_addr': 'ws://localhost:9000/ws'}

@cherrypy.expose

def ws(self):

cherrypy.log("Handler created: %s" % repr(cherrypy.request.ws_handler))

if __name__ == '__main__':

cherrypy.config.update({

'server.socket_host': '0.0.0.0',

'server.socket_port': 9000

})

WebSocketPlugin(cherrypy.engine).subscribe()

cherrypy.tools.websocket = WebSocketTool()

cherrypy.quickstart(ChatWebApp(), '',

config={

'/': {

'tools.response_headers.on': True,

'tools.response_headers.headers': [

('X-Frame-options', 'deny'),

('X-XSS-Protection', '1; mode=block'),

('X-Content-Type-Options', 'nosniff')

]

},

'/ws': {

'tools.websocket.on': True,

'tools.websocket.handler_cls': ChatWebSocketHandler

},

})