mirror of
https://github.com/GNS3/gns3-server.git
synced 2024-12-23 14:42:28 +00:00
79 lines
2.5 KiB
Python
79 lines
2.5 KiB
Python
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# -*- coding: utf-8 -*-
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#
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# Copyright (C) 2020 GNS3 Technologies Inc.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""
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API endpoints for compute notifications.
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"""
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from fastapi import APIRouter, WebSocket, WebSocketDisconnect
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from websockets.exceptions import WebSocketException
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from typing import List
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from gns3server.compute.notification_manager import NotificationManager
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import logging
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log = logging.getLogger(__name__)
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router = APIRouter()
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class ConnectionManager:
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def __init__(self):
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self.active_connections: List[WebSocket] = []
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async def connect(self, websocket: WebSocket):
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await websocket.accept()
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self.active_connections.append(websocket)
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def disconnect(self, websocket: WebSocket):
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self.active_connections.remove(websocket)
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async def close_active_connections(self):
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for websocket in self.active_connections:
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await websocket.close()
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async def send_text(self, message: str, websocket: WebSocket):
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await websocket.send_text(message)
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async def broadcast(self, message: str):
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for connection in self.active_connections:
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await connection.send_text(message)
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manager = ConnectionManager()
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@router.websocket("/notifications/ws")
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async def compute_notifications(websocket: WebSocket):
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log.info("Client has disconnected from compute WebSocket")
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notifications = NotificationManager.instance()
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await manager.connect(websocket)
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try:
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log.info("New client has connected to compute WebSocket")
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with notifications.queue() as queue:
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while True:
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notification = await queue.get_json(5)
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await manager.send_text(notification, websocket)
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except (WebSocketException, WebSocketDisconnect) as e:
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log.info("Client has disconnected from compute WebSocket: {}".format(e))
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finally:
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await websocket.close()
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manager.disconnect(websocket)
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