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# -*- coding: utf-8 -*-
import argparse
import random
import os
import cherrypy
from ws4py.server.cherrypyserver import WebSocketPlugin, WebSocketTool
from ws4py.websocket import WebSocket
from ws4py.messaging import TextMessage
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 Root(object):
def __init__(self, host, port, ssl=False):
self.host = host
self.port = port
self.scheme = 'wss' if ssl else 'ws'
@cherrypy.expose
def index(self):
return """<html>
<head>
</head>
<body>
<p>Note: If viewing this as localhost via SSL and it doesn't work, try using 127.0.0.1 directly</p>
<div>
<textarea id='chat' cols='35' rows='10'></textarea>
<br />
<label for='message'>%(username)s: </label><input id='message' />
<button type="button" id='send' >Send</button>
</div>
<script type='application/javascript'>
websocket = '%(scheme)s://%(host)s:%(port)s/ws';
if (window.WebSocket) {
ws = new WebSocket(websocket);
}
else if (window.MozWebSocket) {
ws = MozWebSocket(websocket);
}
else {
console.log('WebSocket Not Supported');
}
var c = document.getElementById('chat');
window.onbeforeunload = function(e) {
c.value=c.value + 'Bye bye...\\n';
ws.close(1000, '%(username)s left the room');
if(!e) e = window.event;
e.stopPropagation();
e.preventDefault();
};
ws.onmessage = function (evt) {
c.value=c.value + evt.data + '\\n';
};
ws.onopen = function() {
ws.send("%(username)s entered the room");
};
ws.onclose = function(evt) {
c.value=c.value + 'Connection closed by server: ' + evt.code + ' \"' + evt.reason + '\"\\n';
};
document.getElementById('send').onclick = function() {
console.log(document.getElementById('message').value);
ws.send("%(username)s: " +document.getElementById('message').value);
document.getElementById('message').value ="";
return false;
};
</script>
</body>
</html>
""" % {'username': "User%d" % random.randint(0, 100), 'host': self.host, 'port': self.port, 'scheme': self.scheme}
@cherrypy.expose
def ws(self):
cherrypy.log("Handler created: %s" % repr(cherrypy.request.ws_handler))
if __name__ == '__main__':
import logging
from ws4py import configure_logger
configure_logger(level=logging.DEBUG)
parser = argparse.ArgumentParser(description='Echo CherryPy Server')
parser.add_argument('--host', default='127.0.0.1')
parser.add_argument('-p', '--port', default=9000, type=int)
parser.add_argument('--ssl', action='store_true')
args = parser.parse_args()
cherrypy.config.update({'server.socket_host': args.host,
'server.socket_port': args.port,
'tools.staticdir.root': os.path.abspath(os.path.join(os.path.dirname(__file__), 'static'))})
if args.ssl:
cherrypy.config.update({
'server.ssl_module':'builtin',
'server.ssl_certificate': 'server.crt',
'server.ssl_private_key': 'server.key'})
WebSocketPlugin(cherrypy.engine).subscribe()
cherrypy.tools.websocket = WebSocketTool()
cherrypy.quickstart(Root(args.host, args.port, args.ssl), '', config={
'/ws': {
'tools.websocket.on': True,
'tools.websocket.handler_cls': ChatWebSocketHandler
},
'/js': {
'tools.staticdir.on': True,
'tools.staticdir.dir': 'js'
}
}
)
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