Created
June 3, 2017 18:14
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one line chat
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>One line chat</title> | |
| </head> | |
| <body> | |
| <script> | |
| document.addEventListener('DOMContentLoaded', function() { | |
| var ws = new WebSocket("ws://" + location.host + "/ws"); | |
| var msg = document.getElementById('msg'); | |
| var submit = document.getElementById('submit'); | |
| submit.addEventListener('click', function(event) { | |
| ws.send(msg.value); | |
| msg.value = ''; | |
| }); | |
| var msgs = document.getElementById('msgs'); | |
| ws.onmessage = function(event) { | |
| console.log(event.data); | |
| if (msgs.innerHTML.length == 0) | |
| msgs.innerHTML += event.data; | |
| else | |
| msgs.innerHTML += "<br/>" + event.data; | |
| }; | |
| }); | |
| </script> | |
| <div id="msgs"></div> | |
| <hr/> | |
| <div> | |
| <input type="textbox" id="msg"> | |
| <button type="button" id="submit">submit</button> | |
| </div> | |
| </body> | |
| </html> |
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| import tornado.web | |
| import tornado.websocket | |
| import tornado.httpserver | |
| import tornado.ioloop | |
| class IndexHandler(tornado.web.RequestHandler): | |
| def get(self): | |
| self.render("index.html") | |
| class SocketHandler(tornado.websocket.WebSocketHandler): | |
| users = set() | |
| def open(self): | |
| self.users.add(self) | |
| def on_message(self, message): | |
| for user in self.users: | |
| user.write_message(message) | |
| def on_close(self): | |
| self.users.remove(self) | |
| if __name__ == "__main__": | |
| application = tornado.web.Application([ | |
| (r"/", IndexHandler), | |
| (r"/ws", SocketHandler), | |
| ], debug=True) | |
| http_server = tornado.httpserver.HTTPServer(application) | |
| http_server.listen(8888) | |
| tornado.ioloop.IOLoop.current().start() |
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