def websocket_app (environ, start_response):
try:
if environ['PATH_INFO'] == '/playground':
websocket = environ['wsgi.websocket']
while True:
try:
data = websocket.receive()
if not data:
State.forget_client(websocket)
break
else:
utils.handle_message(websocket, data)
except WebSocketError:
raise
finally:
DBSession.remove()
except Exception:
logger.warn("Playfield: uncaught error is occured.", exc_info = True)
