48 lines
1.7 KiB
Python
48 lines
1.7 KiB
Python
"""WebSocket 连接管理器：仅负责连接注册/注销和消息收发"""
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from typing import Dict
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from fastapi import HTTPException, WebSocket
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from app.core.logging import get_logger
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logger = get_logger(__name__)
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class ConnectionManager:
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"""WebSocket 连接管理器"""
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def __init__(self):
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self.active_connections: Dict[str, WebSocket] = {}
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async def connect(self, websocket: WebSocket, conversation_id: str):
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"""建立连接"""
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await websocket.accept()
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self.active_connections[conversation_id] = websocket
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async def disconnect(self, conversation_id: str):
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"""断开连接"""
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if conversation_id in self.active_connections:
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del self.active_connections[conversation_id]
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async def send_message(self, conversation_id: str, message: dict):
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"""发送消息"""
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if conversation_id in self.active_connections:
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websocket = self.active_connections[conversation_id]
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try:
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await websocket.send_json(message)
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except (RuntimeError, Exception) as e:
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logger.warning(f"发送消息失败 (conversation_id={conversation_id}): {e}")
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if conversation_id in self.active_connections:
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del self.active_connections[conversation_id]
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async def receive_message(self, conversation_id: str) -> dict:
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"""接收消息"""
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if conversation_id in self.active_connections:
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websocket = self.active_connections[conversation_id]
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return await websocket.receive_json()
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raise HTTPException(status_code=404, detail="Connection not found")
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manager = ConnectionManager()
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