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core/ws.py

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+import asyncio
+import json
+import uuid
+import websockets
+import traceback
+from .command_manager import matcher 
+from .config_loader import global_config
+from models import Event
+
+class WS:
+    def __init__(self):
+        # 读取参数
+        cfg = global_config.napcat_ws
+        self.url = cfg.get("uri")
+        self.token = cfg.get("token")
+        self.reconnect_interval = cfg.get("reconnect_interval", 5)
+        
+        self.ws = None  # 存储当前的活跃连接
+        self._pending_requests = {}  # 存储等待 API 返回的 Future 对象
+
+    async def connect(self):
+        """主连接循环：负责建立连接并处理断线重连"""
+        headers = {"Authorization": f"Bearer {self.token}"} if self.token else {}
+        
+        while True:
+            try:
+                print(f" 正在尝试连接至 NapCat: {self.url}")
+                async with websockets.connect(self.url, additional_headers=headers) as websocket:
+                    self.ws = websocket
+                    print(" 连接成功！")
+                    
+                    # 进入阻塞式的监听循环
+                    await self._listen_loop(websocket)
+                    
+            except (websockets.exceptions.ConnectionClosed, ConnectionRefusedError) as e:
+                print(f" 连接断开或服务器拒绝访问: {e}")
+            except Exception as e:
+                print(f" 运行异常: {e}")
+                traceback.print_exc()
+            
+            
+            print(f" {self.reconnect_interval}秒后尝试重连...")
+            await asyncio.sleep(self.reconnect_interval)
+
+    async def _listen_loop(self, websocket):
+        """核心监听循环：负责从 WebSocket 读取原始数据并分类分发"""
+        async for message in websocket:
+            try:
+                data = json.loads(message)
+                
+                # 1. 优先处理 API 响应 (带有 echo 字段)
+                echo_id = data.get("echo")
+                if echo_id and echo_id in self._pending_requests:
+                    future = self._pending_requests.pop(echo_id)
+                    if not future.done():
+                        future.set_result(data)  # 唤醒对应的 call_api 函数
+                    continue # 处理完 API 响应后跳过本次循环
+
+                # 2. 处理上报的事件 (含有 post_type 字段)
+                if "post_type" in data:
+                    # 使用 create_task 异步执行，确保复杂的业务逻辑不阻塞消息接收
+                    asyncio.create_task(self.on_event(data))
+                    
+            except Exception as e:
+                print(f" 解析消息异常: {e}")
+
+    async def on_event(self, raw_data: dict):
+        """事件分发层：将原始字典转换为 Event 对象并交给 matcher"""
+        # 仅处理消息事件 (message)，忽略元事件 (meta_event) 或请求事件 (request)
+        if raw_data.get("post_type") != "message":
+            return
+
+        try:
+            # 将字典解析为强类型的 Event 对象
+            event = Event.from_dict(raw_data)
+            
+            # 调试日志：可以看到收到的每条指令内容
+            print(f" 收到消息: [{event.user_id}] -> {event.raw_message}")
+
+            # 调用插件系统的入口函数
+            await matcher.handle_message(self, event)
+            
+        except Exception as e:
+            print(f" 事件分发失败: {e}")
+
+    async def call_api(self, action: str, params: dict = None):
+        """公有 API：供插件调用，发送指令并异步等待结果"""
+        if not self.ws or self.ws.closed:
+            return {"status": "failed", "msg": "websocket not connected"}
+
+        # 创建唯一的 echo ID
+        echo_id = str(uuid.uuid4())
+        payload = {
+            "action": action,
+            "params": params or {},
+            "echo": echo_id
+        }
+        
+        # 创建一个 Future 对象用于等待返回结果
+        loop = asyncio.get_running_loop()
+        future = loop.create_future()
+        self._pending_requests[echo_id] = future
+        
+        # 通过 WebSocket 发送请求
+        await self.ws.send(json.dumps(payload))
+        
+        try:
+            # 设置 100 秒超时，防止 API 请求永久挂起
+            return await asyncio.wait_for(future, timeout=100.0)
+        except asyncio.TimeoutError:
+            self._pending_requests.pop(echo_id, None)
+            return {"status": "failed", "retcode": -1, "msg": "api timeout"}