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import asyncio
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import websockets
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from config.logger import setup_logging
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from core.connection import ConnectionHandler
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from config.config_loader import get_config_from_api
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from core.utils.modules_initialize import initialize_modules
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from core.utils.util import check_vad_update, check_asr_update
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TAG = __name__
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class WebSocketServer:
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def __init__(self, config: dict):
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self.config = config
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self.logger = setup_logging()
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self.config_lock = asyncio.Lock()
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modules = initialize_modules(
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self.logger,
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self.config,
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"VAD" in self.config["selected_module"],
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"ASR" in self.config["selected_module"],
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"LLM" in self.config["selected_module"],
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False,
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"Memory" in self.config["selected_module"],
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"Intent" in self.config["selected_module"],
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)
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self._vad = modules["vad"] if "vad" in modules else None
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self._asr = modules["asr"] if "asr" in modules else None
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self._llm = modules["llm"] if "llm" in modules else None
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self._intent = modules["intent"] if "intent" in modules else None
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self._memory = modules["memory"] if "memory" in modules else None
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self.active_connections = set()
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async def start(self):
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server_config = self.config["server"]
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host = server_config.get("ip", "0.0.0.0")
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port = int(server_config.get("port", 8000))
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async with websockets.serve(
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self._handle_connection, host, port, process_request=self._http_response
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):
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await asyncio.Future()
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async def _handle_connection(self, websocket):
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"""处理新连接，每次创建独立的ConnectionHandler"""
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# 创建ConnectionHandler时传入当前server实例
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handler = ConnectionHandler(
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self.config,
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self._vad,
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self._asr,
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self._llm,
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self._memory,
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self._intent,
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self, # 传入server实例
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)
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self.active_connections.add(handler)
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try:
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await handler.handle_connection(websocket)
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except Exception as e:
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self.logger.bind(tag=TAG).error(f"处理连接时出错: {e}")
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finally:
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# 确保从活动连接集合中移除
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self.active_connections.discard(handler)
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# 强制关闭连接（如果还没有关闭的话）
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try:
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# 安全地检查WebSocket状态并关闭
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if hasattr(websocket, "closed") and not websocket.closed:
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await websocket.close()
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elif hasattr(websocket, "state") and websocket.state.name != "CLOSED":
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await websocket.close()
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else:
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# 如果没有closed属性，直接尝试关闭
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await websocket.close()
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except Exception as close_error:
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self.logger.bind(tag=TAG).error(
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f"服务器端强制关闭连接时出错: {close_error}"
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)
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async def _http_response(self, websocket, request_headers):
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# 检查是否为 WebSocket 升级请求
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if request_headers.headers.get("connection", "").lower() == "upgrade":
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# 如果是 WebSocket 请求，返回 None 允许握手继续
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return None
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else:
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# 如果是普通 HTTP 请求，返回 "server is running"
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return websocket.respond(200, "Server is running\n")
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async def update_config(self) -> bool:
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"""更新服务器配置并重新初始化组件
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Returns:
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bool: 更新是否成功
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"""
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try:
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async with self.config_lock:
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# 重新获取配置
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new_config = get_config_from_api(self.config)
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if new_config is None:
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self.logger.bind(tag=TAG).error("获取新配置失败")
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return False
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self.logger.bind(tag=TAG).info(f"获取新配置成功")
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# 检查 VAD 和 ASR 类型是否需要更新
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update_vad = check_vad_update(self.config, new_config)
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update_asr = check_asr_update(self.config, new_config)
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self.logger.bind(tag=TAG).info(
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f"检查VAD和ASR类型是否需要更新: {update_vad} {update_asr}"
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)
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# 更新配置
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self.config = new_config
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# 重新初始化组件
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modules = initialize_modules(
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self.logger,
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new_config,
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update_vad,
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update_asr,
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"LLM" in new_config["selected_module"],
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False,
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"Memory" in new_config["selected_module"],
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"Intent" in new_config["selected_module"],
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)
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# 更新组件实例
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if "vad" in modules:
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self._vad = modules["vad"]
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if "asr" in modules:
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self._asr = modules["asr"]
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if "llm" in modules:
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self._llm = modules["llm"]
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if "intent" in modules:
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self._intent = modules["intent"]
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if "memory" in modules:
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self._memory = modules["memory"]
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self.logger.bind(tag=TAG).info(f"更新配置任务执行完毕")
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return True
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except Exception as e:
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self.logger.bind(tag=TAG).error(f"更新服务器配置失败: {str(e)}")
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return False
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