gns3-server/gns3server/handlers/api/compute/notification_handler.py
Julien Duponchelle 9694850465
Option for auto close project when no client listen
And fix websocket not correctly detected has closed.

Ref https://github.com/GNS3/gns3-gui/issues/1331
2016-08-16 17:35:43 +02:00

48 lines
1.6 KiB
Python

# -*- coding: utf-8 -*-
#
# Copyright (C) 2015 GNS3 Technologies Inc.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import asyncio
from aiohttp.web import WebSocketResponse
from gns3server.web.route import Route
from gns3server.compute.notification_manager import NotificationManager
class NotificationHandler:
@Route.get(
r"/notifications/ws",
description="Send notifications using Websockets")
def notifications(request, response):
notifications = NotificationManager.instance()
ws = WebSocketResponse()
yield from ws.prepare(request)
# Process ping / pong and close message
asyncio.async(ws.receive())
with notifications.queue() as queue:
while True:
try:
notification = yield from queue.get_json(5)
except asyncio.futures.CancelledError:
break
if ws.closed:
break
ws.send_str(notification)
return ws