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#!/usr/bin/env python3
"""Example for aiohttp.web websocket server
"""
import os
from aiohttp import web
WS_FILE = os.path.join(os.path.dirname(__file__), 'websocket.html')
async def wshandler(request):
resp = web.WebSocketResponse()
available = resp.can_prepare(request)
if not available:
with open(WS_FILE, 'rb') as fp:
return web.Response(body=fp.read(), content_type='text/html')
await resp.prepare(request)
await resp.send_str('Welcome!!!')
try:
print('Someone joined.')
for ws in request.app['sockets']:
await ws.send_str('Someone joined')
request.app['sockets'].append(resp)
async for msg in resp:
if msg.type == web.WSMsgType.TEXT:
for ws in request.app['sockets']:
if ws is not resp:
await ws.send_str(msg.data)
else:
return resp
return resp
finally:
request.app['sockets'].remove(resp)
print('Someone disconnected.')
for ws in request.app['sockets']:
await ws.send_str('Someone disconnected.')
async def on_shutdown(app):
for ws in app['sockets']:
await ws.close()
def init():
app = web.Application()
app['sockets'] = []
app.router.add_get('/', wshandler)
app.on_shutdown.append(on_shutdown)
return app
web.run_app(init())
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