mirror of
https://github.com/GNS3/gns3-server
synced 2024-11-28 19:28:07 +00:00
88 lines
2.8 KiB
Python
88 lines
2.8 KiB
Python
#
|
|
# 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 compute notifications.
|
|
"""
|
|
|
|
from fastapi import APIRouter, WebSocket, WebSocketDisconnect
|
|
from websockets.exceptions import ConnectionClosed, WebSocketException
|
|
|
|
from gns3server.compute.notification_manager import NotificationManager
|
|
|
|
import logging
|
|
|
|
log = logging.getLogger(__name__)
|
|
|
|
router = APIRouter()
|
|
|
|
|
|
@router.websocket("/notifications/ws")
|
|
async def notification_ws(websocket: WebSocket) -> None:
|
|
"""
|
|
Receive project notifications about the project from WebSocket.
|
|
"""
|
|
|
|
await websocket.accept()
|
|
log.info(f"New client {websocket.client.host}:{websocket.client.port} has connected to compute WebSocket")
|
|
try:
|
|
with NotificationManager.instance().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 compute WebSocket")
|
|
except WebSocketException as e:
|
|
log.warning(f"Error while sending to controller event to WebSocket client: {e}")
|
|
finally:
|
|
await websocket.close()
|
|
|
|
|
|
if __name__ == "__main__":
|
|
|
|
import uvicorn
|
|
from fastapi import FastAPI
|
|
from starlette.responses import HTMLResponse
|
|
|
|
app = FastAPI()
|
|
app.include_router(router)
|
|
|
|
html = """
|
|
<!DOCTYPE html>
|
|
<html>
|
|
<body>
|
|
<ul id='messages'>
|
|
</ul>
|
|
<script>
|
|
var ws = new WebSocket("ws://localhost:8000/notifications/ws");
|
|
ws.onmessage = function(event) {
|
|
var messages = document.getElementById('messages')
|
|
var message = document.createElement('li')
|
|
var content = document.createTextNode(event.data)
|
|
message.appendChild(content)
|
|
messages.appendChild(message)
|
|
};
|
|
</script>
|
|
</body>
|
|
</html>
|
|
"""
|
|
|
|
@app.get("/")
|
|
async def get() -> HTMLResponse:
|
|
return HTMLResponse(html)
|
|
|
|
uvicorn.run(app, host="localhost", port=8000)
|