mirror of
https://github.com/GNS3/gns3-server.git
synced 2024-11-18 01:34:50 +02:00
68 lines
2.3 KiB
Python
68 lines
2.3 KiB
Python
# -*- coding: utf-8 -*-
|
|
#
|
|
# Copyright (C) 2020 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/>.
|
|
|
|
"""
|
|
API routes for controller notifications.
|
|
"""
|
|
|
|
from fastapi import APIRouter, WebSocket, WebSocketDisconnect
|
|
from fastapi.responses import StreamingResponse
|
|
from websockets.exceptions import ConnectionClosed, WebSocketException
|
|
|
|
from gns3server.controller import Controller
|
|
|
|
import logging
|
|
log = logging.getLogger(__name__)
|
|
|
|
router = APIRouter()
|
|
|
|
|
|
@router.get("")
|
|
async def http_notification():
|
|
"""
|
|
Receive controller notifications about the controller from HTTP stream.
|
|
"""
|
|
|
|
async def event_stream():
|
|
with Controller.instance().notification.controller_queue() as queue:
|
|
while True:
|
|
msg = await queue.get_json(5)
|
|
yield ("{}\n".format(msg)).encode("utf-8")
|
|
|
|
return StreamingResponse(event_stream(), media_type="application/json")
|
|
|
|
|
|
@router.websocket("/ws")
|
|
async def notification_ws(websocket: WebSocket):
|
|
"""
|
|
Receive project notifications about the controller from WebSocket.
|
|
"""
|
|
|
|
await websocket.accept()
|
|
log.info(f"New client {websocket.client.host}:{websocket.client.port} has connected to controller WebSocket")
|
|
try:
|
|
with Controller.instance().notification.controller_queue() as queue:
|
|
while True:
|
|
notification = await queue.get_json(5)
|
|
await websocket.send_text(notification)
|
|
except (ConnectionClosed, WebSocketDisconnect):
|
|
log.info(f"Client {websocket.client.host}:{websocket.client.port} has disconnected from controller WebSocket")
|
|
except WebSocketException as e:
|
|
log.warning("Error while sending to controller event to WebSocket client: '{}'".format(e))
|
|
finally:
|
|
await websocket.close()
|