habnabit/LICENSE

## client.html
<!DOCTYPE html>
<html>
    <head>
        <title>WebSocket demo</title>
    </head>
    <body>
	<form id="chatform">
	    <input type="text" id="line" autocomplete="off">
	</form>
        <script>
         var ws = new WebSocket("ws://127.0.0.1:8765/"),
             messages = document.createElement('ul');
         ws.onmessage = function (event) {
             var messages = document.getElementsByTagName('ul')[0],
                 message = document.createElement('li'),
                 content = document.createTextNode(event.data);
             message.appendChild(content);
             messages.appendChild(message);
         };
         document.body.appendChild(messages);
	 document.getElementById('chatform').onsubmit = function () {
	     var line = this.line.value;
	     this.line.value = '';
	     ws.send(line);
	     return false;
	 };
        </script>
    </body>
</html>

## LICENSE
Copyright 2016 Google Inc.

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.

## server.py
import asyncio
import contextlib
import datetime
import websockets


class SocketCollector(object):
    def __init__(self):
        self.sockets = set()

    def add(self, sock):
        @contextlib.contextmanager
        def c():
            self.sockets.add(sock)
            try:
                yield self
            finally:
                self.sockets.discard(sock)

        return c()

    def __iter__(self):
        return iter(list(self.sockets))


class ChatServer(object):
    def __init__(self):
        self.sockets = SocketCollector()

    async def serve(self, websocket, path):
        with self.sockets.add(websocket) as everyone:
            while True:
                message = await websocket.recv()
                message = '[{:%H:%M:%S}] {}'.format(datetime.datetime.now(), message)
                for other in everyone:
                    await other.send(message)

    async def notify_all_periodically(self):
        while True:
            message = 'The time is: {:%H:%M:%S}'.format(datetime.datetime.now())
            for socket in self.sockets:
                await socket.send(message)
            await asyncio.sleep(10)


loop = asyncio.get_event_loop()
chat = ChatServer()
start_server = websockets.serve(chat.serve, 'localhost', 8765)

loop.create_task(chat.notify_all_periodically())
loop.run_until_complete(start_server)
loop.run_forever()
	<!DOCTYPE html>
	<html>
	<head>
	<title>WebSocket demo</title>
	</head>
	<body>
	<form id="chatform">
	<input type="text" id="line" autocomplete="off">
	</form>
	<script>
	var ws = new WebSocket("ws://127.0.0.1:8765/"),
	messages = document.createElement('ul');
	ws.onmessage = function (event) {
	var messages = document.getElementsByTagName('ul')[0],
	message = document.createElement('li'),
	content = document.createTextNode(event.data);
	message.appendChild(content);
	messages.appendChild(message);
	};
	document.body.appendChild(messages);
	document.getElementById('chatform').onsubmit = function () {
	var line = this.line.value;
	this.line.value = '';
	ws.send(line);
	return false;
	};
	</script>
	</body>
	</html>
	Copyright 2016 Google Inc.

	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 asyncio
	import contextlib
	import datetime
	import websockets


	class SocketCollector(object):
	def __init__(self):
	self.sockets = set()

	def add(self, sock):
	@contextlib.contextmanager
	def c():
	self.sockets.add(sock)
	try:
	yield self
	finally:
	self.sockets.discard(sock)

	return c()

	def __iter__(self):
	return iter(list(self.sockets))


	class ChatServer(object):
	def __init__(self):
	self.sockets = SocketCollector()

	async def serve(self, websocket, path):
	with self.sockets.add(websocket) as everyone:
	while True:
	message = await websocket.recv()
	message = '[{:%H:%M:%S}] {}'.format(datetime.datetime.now(), message)
	for other in everyone:
	await other.send(message)

	async def notify_all_periodically(self):
	while True:
	message = 'The time is: {:%H:%M:%S}'.format(datetime.datetime.now())
	for socket in self.sockets:
	await socket.send(message)
	await asyncio.sleep(10)


	loop = asyncio.get_event_loop()
	chat = ChatServer()
	start_server = websockets.serve(chat.serve, 'localhost', 8765)

	loop.create_task(chat.notify_all_periodically())
	loop.run_until_complete(start_server)
	loop.run_forever()