K2cr2O1
311b1985dd
将防重复处理数据结构改为按客户端隔离，防止不同客户端间的事件冲突 添加事件处理中的状态跟踪，避免并发处理同一事件 优化群消息内容防重复检查，仅对群聊消息生效 增加详细的调试日志，便于问题排查
624 lines
25 KiB
Python
624 lines
25 KiB
Python
"""
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反向 WebSocket 管理器模块
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该模块提供了反向 WebSocket 服务端功能，允许 OneBot 实现（如 NapCat）
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主动连接到机器人服务器，而不是由机器人主动连接到 OneBot 实现。
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"""
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import asyncio
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import orjson
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import websockets
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from websockets.server import WebSocketServerProtocol
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from typing import Dict, Any, Optional, Set
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from datetime import datetime
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import uuid
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import random
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from ..config_loader import global_config
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from ..utils.logger import ModuleLogger
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from ..utils.exceptions import WebSocketError, WebSocketConnectionError
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from ..utils.error_codes import ErrorCode, create_error_response
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from .command_manager import matcher
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from models.events.factory import EventFactory
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from .redis_manager import redis_manager
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from ..bot import Bot
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from ..ws import ReverseWSClient as _ReverseWSClient
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class ReverseWSClient(_ReverseWSClient):
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"""
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反向 WebSocket 客户端代理，用于 Bot 实例调用 API。
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"""
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def __init__(self, manager: "ReverseWSManager", client_id: str):
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super().__init__(manager, client_id)
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self.manager = manager
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self.client_id = client_id
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async def call_api(self, action: str, params: Optional[Dict[Any, Any]] = None) -> Dict[Any, Any]:
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"""
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通过 ReverseWSManager 调用 API。
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"""
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return await self.manager.call_api(action, params, self.client_id)
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class ReverseWSManager:
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"""
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反向 WebSocket 管理器，作为服务端接收 OneBot 实现的连接。
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支持多前端负载均衡和防重复发送机制。
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"""
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def __init__(self):
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"""
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初始化反向 WebSocket 管理器。
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"""
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self.server = None
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self.clients: Dict[str, WebSocketServerProtocol] = {}
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self.client_self_ids: Dict[str, int] = {}
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self._pending_requests: Dict[str, asyncio.Future] = {}
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self._running = False
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self.logger = ModuleLogger("ReverseWSManager")
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# 负载均衡相关
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self._active_client_id: Optional[str] = None # 当前活跃的客户端（用于消息发送）
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self._client_load: Dict[str, int] = {} # 客户端负载计数
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self._client_health: Dict[str, datetime] = {} # 客户端健康检查时间
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# 防重复发送相关
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self._processed_events: Dict[str, Dict[str, datetime]] = {} # 每个客户端已处理的事件ID和时间
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self._event_ttl = 60 # 事件ID保留时间（秒）
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self._message_locks: Dict[str, asyncio.Lock] = {} # 消息处理锁
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self._message_lock_times: Dict[str, datetime] = {} # 消息锁创建时间
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self._lock_ttl = 300 # 锁保留时间（秒）
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# 基于消息内容的防重复（仅用于群聊）
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self._processed_messages: Dict[str, Dict[str, datetime]] = {} # 每个客户端已处理的消息内容和时间
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self._message_content_ttl = 5 # 消息内容保留时间（秒）
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# 启动清理任务
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self._cleanup_task = None
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# Bot实例字典（每个前端独立的Bot实例）
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self.bots: Dict[str, Bot] = {}
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# 正在处理的事件ID集合（用于防止重复处理）
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self._processing_events: Dict[str, Set[str]] = {} # client_id: set of event_ids
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async def start(self, host: str = "0.0.0.0", port: int = 3002) -> None:
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"""
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启动反向 WebSocket 服务端。
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Args:
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host: 监听地址，默认为 0.0.0.0
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port: 监听端口，默认为 3002
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"""
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self._running = True
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self.server = await websockets.serve(
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self._handle_client,
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host,
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port,
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ping_interval=20,
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ping_timeout=20
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)
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self.logger.success(f"反向 WebSocket 服务端已启动: ws://{host}:{port}")
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# 启动清理任务
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self._cleanup_task = asyncio.create_task(self._cleanup_expired_data())
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async def stop(self) -> None:
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"""
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停止反向 WebSocket 服务端。
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"""
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self._running = False
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# 停止清理任务
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if self._cleanup_task:
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self._cleanup_task.cancel()
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try:
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await self._cleanup_task
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except asyncio.CancelledError:
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pass
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if self.server:
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self.server.close()
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await self.server.wait_closed()
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for client_id in list(self.clients.keys()):
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await self._disconnect_client(client_id)
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self.logger.success("反向 WebSocket 服务端已停止")
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async def _handle_client(
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self,
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websocket: WebSocketServerProtocol,
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path: str = None
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) -> None:
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"""
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处理客户端连接。
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Args:
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websocket: WebSocket 连接对象
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path: 连接路径
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"""
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client_id = str(uuid.uuid4())
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self.clients[client_id] = websocket
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self.logger.info(f"新客户端连接: {client_id}")
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try:
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async for message in websocket:
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try:
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data = orjson.loads(message)
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# 处理 API 响应
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echo_id = data.get("echo")
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if echo_id and echo_id in self._pending_requests:
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future = self._pending_requests.pop(echo_id)
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if not future.done():
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future.set_result(data)
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continue
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# 处理上报事件
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if "post_type" in data:
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event_id = data.get('id') or data.get('post_id') or data.get('message_id') or data.get('time')
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self.logger.debug(f"收到事件: client_id={client_id}, event_id={event_id}, post_type={data.get('post_type')}")
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asyncio.create_task(self._on_event(client_id, data))
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except orjson.JSONDecodeError as e:
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self.logger.error(f"JSON 解析失败: {str(e)}")
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except Exception as e:
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self.logger.exception(f"处理消息异常: {str(e)}")
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except websockets.exceptions.ConnectionClosed as e:
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self.logger.info(f"客户端断开连接: {client_id} - {str(e)}")
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except Exception as e:
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self.logger.exception(f"客户端异常: {str(e)}")
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finally:
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await self._disconnect_client(client_id)
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async def _cleanup_expired_data(self) -> None:
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"""
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清理过期的事件ID和消息锁
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"""
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while self._running:
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try:
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await asyncio.sleep(10) # 每10秒清理一次
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current_time = datetime.now()
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# 清理过期的事件ID（按客户端）
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for client_id, events in list(self._processed_events.items()):
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expired_events = [
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event_id for event_id, timestamp in events.items()
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if (current_time - timestamp).total_seconds() > self._event_ttl
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]
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for event_id in expired_events:
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del events[event_id]
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if not events:
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del self._processed_events[client_id]
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# 清理过期的消息锁
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expired_locks = [
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lock_key for lock_key, timestamp in self._message_lock_times.items()
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if (current_time - timestamp).total_seconds() > self._lock_ttl
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]
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for lock_key in expired_locks:
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if lock_key in self._message_locks:
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del self._message_locks[lock_key]
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if lock_key in self._message_lock_times:
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del self._message_lock_times[lock_key]
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# 清理过期的消息内容（按客户端）
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for client_id, messages in list(self._processed_messages.items()):
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expired_messages = [
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msg_key for msg_key, timestamp in messages.items()
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if (current_time - timestamp).total_seconds() > self._message_content_ttl
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]
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for msg_key in expired_messages:
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del messages[msg_key]
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if not messages:
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del self._processed_messages[client_id]
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except asyncio.CancelledError:
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break
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except Exception as e:
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self.logger.error(f"清理过期数据失败: {str(e)}")
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async def _disconnect_client(self, client_id: str) -> None:
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"""
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断开客户端连接。
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Args:
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client_id: 客户端 ID
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"""
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if client_id in self.clients:
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del self.clients[client_id]
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if client_id in self.client_self_ids:
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del self.client_self_ids[client_id]
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if client_id in self._client_load:
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del self._client_load[client_id]
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if client_id in self._client_health:
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del self._client_health[client_id]
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if client_id in self.bots:
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del self.bots[client_id]
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# 清理该客户端的防重复数据
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if client_id in self._processed_events:
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del self._processed_events[client_id]
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if client_id in self._processed_messages:
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del self._processed_messages[client_id]
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if client_id in self._processing_events:
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del self._processing_events[client_id]
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self.logger.info(f"客户端已断开并清理: {client_id}")
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async def _on_event(self, client_id: str, event_data: Dict[str, Any]) -> None:
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"""
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处理事件，包含防重复发送和负载均衡逻辑。
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Args:
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client_id: 客户端 ID
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event_data: 事件数据
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"""
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# 获取事件ID
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event_id = event_data.get('id') or event_data.get('post_id') or event_data.get('message_id') or event_data.get('time')
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if not event_id:
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self.logger.debug(f"_on_event: 事件ID为空, client_id={client_id}")
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return
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event_key = f"{event_data.get('post_type')}:{event_id}"
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# 检查客户端是否已连接
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if client_id not in self.clients:
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self.logger.debug(f"_on_event: 客户端已断开, client_id={client_id}")
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return
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# 检查是否正在处理
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if client_id not in self._processing_events:
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self._processing_events[client_id] = set()
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if event_key in self._processing_events[client_id]:
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self.logger.debug(f"_on_event: 事件正在处理中, client_id={client_id}, event_key={event_key}")
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return
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# 标记为正在处理
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self._processing_events[client_id].add(event_key)
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try:
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event = EventFactory.create_event(event_data)
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if hasattr(event, 'self_id'):
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self.client_self_ids[client_id] = event.self_id
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# 为事件注入Bot实例
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from ..ws import ReverseWSClient
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# 为每个前端创建独立的Bot实例
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if client_id not in self.bots:
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# 使用 ReverseWSClient 代理
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temp_ws = ReverseWSClient(self, client_id)
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temp_ws.self_id = event.self_id if hasattr(event, 'self_id') else 0
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self.bots[client_id] = Bot(temp_ws)
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event.bot = self.bots[client_id]
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# 记录客户端健康状态
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self._client_health[client_id] = datetime.now()
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# 检查是否为重复事件（按客户端）
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is_duplicate = self._is_duplicate_event(event_data, client_id)
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self.logger.debug(f"事件防重复检查: client_id={client_id}, event_id={event_data.get('message_id')}, is_duplicate={is_duplicate}")
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if is_duplicate:
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self.logger.debug(f"检测到重复事件，已忽略: {event_data.get('id')}")
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return
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# 处理消息事件
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if event.post_type == "message":
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sender_name = event.sender.nickname if hasattr(event, "sender") and event.sender else "Unknown"
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message_type = getattr(event, "message_type", "Unknown")
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user_id = getattr(event, "user_id", "Unknown")
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raw_message = getattr(event, "raw_message", "")
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self.logger.info(f"[消息] {message_type} | {user_id}({sender_name}): {raw_message}")
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# 使用锁防止同一消息被多次处理
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message_key = self._get_message_key(event_data)
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async with self._get_message_lock(message_key):
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# 再次检查是否重复（防止并发问题）
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if self._is_duplicate_event(event_data, client_id):
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self.logger.debug(f"并发检测到重复消息（事件ID），已忽略: {message_key}")
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return
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# 检查是否重复（基于消息内容，按客户端，仅群聊）
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is_duplicate_content = self._is_duplicate_message(event_data, client_id)
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self.logger.debug(f"锁内内容检查: client_id={client_id}, is_duplicate={is_duplicate_content}")
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if is_duplicate_content:
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self.logger.debug(f"并发检测到重复消息（内容），已忽略: {message_key}")
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return
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# 标记事件已处理（按客户端）
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self._mark_event_processed(event_data, client_id)
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# 更新客户端负载
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self._update_client_load(client_id)
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await matcher.handle_event(event.bot, event)
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else:
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# 对于非消息事件，直接标记并处理
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self._mark_event_processed(event_data, client_id)
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if event.post_type == "notice":
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notice_type = getattr(event, "notice_type", "Unknown")
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self.logger.info(f"[通知] {notice_type}")
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await matcher.handle_event(event.bot, event)
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elif event.post_type == "request":
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request_type = getattr(event, "request_type", "Unknown")
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self.logger.info(f"[请求] {request_type}")
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await matcher.handle_event(event.bot, event)
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elif event.post_type == "meta_event":
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meta_event_type = getattr(event, "meta_event_type", "Unknown")
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self.logger.debug(f"[元事件] {meta_event_type}")
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await matcher.handle_event(event.bot, event)
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except Exception as e:
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self.logger.exception(f"事件处理异常: {str(e)}")
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finally:
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# 清理正在处理的事件
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if client_id in self._processing_events:
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if event_key in self._processing_events[client_id]:
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self._processing_events[client_id].discard(event_key)
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# 如果集合为空，删除该客户端的记录
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if not self._processing_events[client_id]:
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del self._processing_events[client_id]
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async def call_api(
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self,
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action: str,
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params: Optional[Dict[Any, Any]] = None,
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client_id: Optional[str] = None,
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use_load_balance: bool = True
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) -> Dict[Any, Any]:
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"""
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向客户端发送 API 请求。
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Args:
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action: API 动作名称
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params: API 参数
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client_id: 客户端 ID，如果为 None 则根据负载均衡策略选择
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use_load_balance: 是否使用负载均衡，默认为 True
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Returns:
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API 响应数据
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"""
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if not self.clients:
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self.logger.error("调用 API 失败: 没有可用的客户端连接")
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return create_error_response(
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code=ErrorCode.WS_DISCONNECTED,
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message="没有可用的客户端连接",
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data={"action": action, "params": params}
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)
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# 如果没有指定客户端，使用负载均衡
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if client_id is None and use_load_balance:
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# 优先选择健康的客户端
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healthy_clients = self.get_healthy_clients()
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if healthy_clients:
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# 选择负载最低的客户端
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client_id = self.get_client_with_least_load()
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if client_id is None and healthy_clients:
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client_id = list(healthy_clients.keys())[0]
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else:
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# 如果没有健康客户端，使用所有客户端中的一个
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client_id = list(self.clients.keys())[0]
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echo_id = str(uuid.uuid4())
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payload = {"action": action, "params": params or {}, "echo": echo_id}
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loop = asyncio.get_running_loop()
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future = loop.create_future()
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self._pending_requests[echo_id] = future
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try:
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targets = [client_id] if client_id else list(self.clients.keys())
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for cid in targets:
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if cid in self.clients:
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await self.clients[cid].send(orjson.dumps(payload))
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return await asyncio.wait_for(future, timeout=30.0)
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except asyncio.TimeoutError:
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self._pending_requests.pop(echo_id, None)
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self.logger.warning(f"API 调用超时: action={action}, params={params}")
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return create_error_response(
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code=ErrorCode.TIMEOUT_ERROR,
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message="API调用超时",
|
||
data={"action": action, "params": params}
|
||
)
|
||
except Exception as e:
|
||
self._pending_requests.pop(echo_id, None)
|
||
self.logger.exception(f"API 调用异常: action={action}, error={str(e)}")
|
||
return create_error_response(
|
||
code=ErrorCode.WS_MESSAGE_ERROR,
|
||
message=f"API调用异常: {str(e)}",
|
||
data={"action": action, "params": params}
|
||
)
|
||
|
||
def get_connected_clients(self) -> Dict[str, int]:
|
||
"""
|
||
获取已连接的客户端列表。
|
||
|
||
Returns:
|
||
客户端 ID 和 self_id 的映射字典
|
||
"""
|
||
return self.client_self_ids.copy()
|
||
|
||
def _is_duplicate_event(self, event_data: Dict[str, Any], client_id: str) -> bool:
|
||
"""
|
||
检查是否为重复事件。
|
||
|
||
Args:
|
||
event_data: 事件数据
|
||
client_id: 客户端ID
|
||
|
||
Returns:
|
||
是否为重复事件
|
||
"""
|
||
# 尝试多种可能的事件ID字段
|
||
event_id = (event_data.get('id') or
|
||
event_data.get('post_id') or
|
||
event_data.get('message_id') or
|
||
event_data.get('time'))
|
||
if not event_id:
|
||
return False
|
||
|
||
event_key = f"{event_data.get('post_type')}:{event_id}"
|
||
|
||
# 检查该客户端是否已处理过此事件
|
||
if client_id not in self._processed_events:
|
||
self.logger.debug(f"_is_duplicate_event: client_id={client_id}不在_processed_events中, event_key={event_key}, 返回False")
|
||
return False
|
||
|
||
is_duplicate = event_key in self._processed_events[client_id]
|
||
self.logger.debug(f"_is_duplicate_event: client_id={client_id}, event_key={event_key}, in_processed={is_duplicate}, processed_events_count={len(self._processed_events[client_id])}")
|
||
return is_duplicate
|
||
|
||
def _is_duplicate_message(self, event_data: Dict[str, Any], client_id: str) -> bool:
|
||
"""
|
||
检查是否为重复消息（基于消息内容）。
|
||
|
||
Args:
|
||
event_data: 事件数据
|
||
client_id: 客户端ID
|
||
|
||
Returns:
|
||
是否为重复消息
|
||
"""
|
||
if event_data.get('post_type') != 'message':
|
||
return False
|
||
|
||
# 只对群聊消息进行内容防重复
|
||
if event_data.get('message_type') != 'group':
|
||
return False
|
||
|
||
# 生成消息内容标识
|
||
raw_message = event_data.get('raw_message', '')
|
||
user_id = event_data.get('user_id')
|
||
group_id = event_data.get('group_id', '0')
|
||
|
||
# 使用消息内容、用户ID和群组ID作为标识
|
||
content_key = f"content:{raw_message}:{user_id}:{group_id}"
|
||
|
||
# 检查该客户端是否已处理过此消息内容
|
||
if client_id not in self._processed_messages:
|
||
return False
|
||
|
||
return content_key in self._processed_messages[client_id]
|
||
|
||
def _mark_event_processed(self, event_data: Dict[str, Any], client_id: str) -> None:
|
||
"""
|
||
标记事件已处理。
|
||
|
||
Args:
|
||
event_data: 事件数据
|
||
client_id: 客户端ID
|
||
"""
|
||
# 尝试多种可能的事件ID字段
|
||
event_id = (event_data.get('id') or
|
||
event_data.get('post_id') or
|
||
event_data.get('message_id') or
|
||
event_data.get('time'))
|
||
if not event_id:
|
||
self.logger.debug(f"_mark_event_processed: event_id为空, event_data={event_data}")
|
||
return
|
||
|
||
event_key = f"{event_data.get('post_type')}:{event_id}"
|
||
|
||
# 为该客户端记录已处理的事件
|
||
if client_id not in self._processed_events:
|
||
self._processed_events[client_id] = {}
|
||
self._processed_events[client_id][event_key] = datetime.now()
|
||
self.logger.debug(f"_mark_event_processed: client_id={client_id}, event_key={event_key}, processed_events_count={len(self._processed_events[client_id])}")
|
||
|
||
# 只对群聊消息标记内容已处理
|
||
if event_data.get('post_type') == 'message' and event_data.get('message_type') == 'group':
|
||
raw_message = event_data.get('raw_message', '')
|
||
user_id = event_data.get('user_id')
|
||
group_id = event_data.get('group_id', '0')
|
||
content_key = f"content:{raw_message}:{user_id}:{group_id}"
|
||
|
||
if client_id not in self._processed_messages:
|
||
self._processed_messages[client_id] = {}
|
||
self._processed_messages[client_id][content_key] = datetime.now()
|
||
|
||
def _get_message_key(self, event_data: Dict[str, Any]) -> str:
|
||
"""
|
||
获取消息唯一标识。
|
||
|
||
Args:
|
||
event_data: 事件数据
|
||
|
||
Returns:
|
||
消息唯一标识
|
||
"""
|
||
if event_data.get('post_type') == 'message':
|
||
message_id = event_data.get('message_id') or event_data.get('id')
|
||
user_id = event_data.get('user_id')
|
||
return f"msg:{message_id}:{user_id}"
|
||
return str(uuid.uuid4())
|
||
|
||
def _get_message_lock(self, key: str) -> asyncio.Lock:
|
||
"""
|
||
获取消息处理锁。
|
||
|
||
Args:
|
||
key: 消息唯一标识
|
||
|
||
Returns:
|
||
asyncio.Lock 实例
|
||
"""
|
||
if key not in self._message_locks:
|
||
self._message_locks[key] = asyncio.Lock()
|
||
self._message_lock_times[key] = datetime.now()
|
||
return self._message_locks[key]
|
||
|
||
def _update_client_load(self, client_id: str) -> None:
|
||
"""
|
||
更新客户端负载。
|
||
|
||
Args:
|
||
client_id: 客户端 ID
|
||
"""
|
||
if client_id not in self._client_load:
|
||
self._client_load[client_id] = 0
|
||
self._client_load[client_id] += 1
|
||
|
||
def get_client_with_least_load(self) -> Optional[str]:
|
||
"""
|
||
获取负载最低的客户端。
|
||
|
||
Returns:
|
||
客户端 ID，如果没有客户端则返回 None
|
||
"""
|
||
if not self._client_load:
|
||
return None
|
||
|
||
return min(self._client_load.keys(), key=lambda k: self._client_load[k])
|
||
|
||
def get_healthy_clients(self) -> Dict[str, int]:
|
||
"""
|
||
获取健康的客户端列表（最近30秒内有活动）。
|
||
|
||
Returns:
|
||
健康的客户端 ID 和 self_id 的映射字典
|
||
"""
|
||
current_time = datetime.now()
|
||
healthy = {}
|
||
|
||
for client_id, last_health in self._client_health.items():
|
||
if (current_time - last_health).total_seconds() < 30:
|
||
if client_id in self.client_self_ids:
|
||
healthy[client_id] = self.client_self_ids[client_id]
|
||
|
||
return healthy
|
||
|
||
|
||
reverse_ws_manager = ReverseWSManager()
|