Files
8-cut/server/ws.py
T
Ethanfel 5b7a55a05d fix: second-pass review bugs in server and core
- ExportRunner: stop batch on first error (was continuing, overwriting
  error status with done)
- Export route: validate input_path against MEDIA_DIRS
- Export route: validate encoder, portrait_ratio, folder_suffix, name
- Export route: fix format check for WebP sequence
- Export route: add _ separator in folder_suffix (match GUI)
- Export route: use realpath consistently in delete endpoint
- Export route: drop runner ref on completion (prevent memory leak)
- ProcessedDB: use cursor-level row_factory (thread-safe)
- WebSocket: catch all exceptions in connect, cleanup in finally
- Dockerfile: use uvicorn[standard] for websockets support

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-04-16 14:10:27 +02:00

44 lines
1.1 KiB
Python

import asyncio
import json
import threading
from fastapi import WebSocket, WebSocketDisconnect
_lock = threading.Lock()
_connections: list[WebSocket] = []
_loop: asyncio.AbstractEventLoop | None = None
async def connect(ws: WebSocket):
global _loop
_loop = asyncio.get_running_loop()
await ws.accept()
with _lock:
_connections.append(ws)
try:
while True:
await ws.receive_text() # keep alive
except (WebSocketDisconnect, Exception):
pass
finally:
with _lock:
if ws in _connections:
_connections.remove(ws)
def broadcast(msg: dict):
"""Send a message to all connected WebSocket clients.
Called from sync code (export callbacks running in background threads),
so we schedule sends on uvicorn's event loop.
"""
if _loop is None:
return
data = json.dumps(msg)
with _lock:
for ws in list(_connections):
try:
asyncio.run_coroutine_threadsafe(ws.send_text(data), _loop)
except Exception:
pass