project: 增加web和adb控制，未测试

WebRTCControllerWeb/server/index.js

@@ -0,0 +1,109 @@
+// 轻量信令服务器，协议与 WebRTCSignalServer (Spring) 完全兼容。
+// 端点: ws://host:PORT/ws/signal
+// 支持消息: REGISTER / DEVICE_LIST / OFFER / ANSWER / ICE_CANDIDATE / CONTROL_COMMAND / CONNECTION_REJECTED
+// 支持通知: REGISTER_SUCCESS / DEVICE_LIST / TARGET_OFFLINE / REQUEST_ERROR / REQUEST_TIMEOUT
+import { WebSocketServer } from 'ws';
+
+const PORT = Number(process.env.PORT || 8088);
+const PATH = process.env.WS_PATH || '/ws/signal';
+
+const wss = new WebSocketServer({ port: PORT, path: PATH });
+
+// deviceId -> { ws, type }
+const sessions = new Map();
+// "from->to" -> true（等待被控端确认）
+const pending = new Map();
+
+const keyOf = (a, b) => `${a}->${b}`;
+
+function send(ws, obj) {
+  if (ws && ws.readyState === ws.OPEN) ws.send(JSON.stringify(obj));
+}
+
+wss.on('connection', (ws) => {
+  ws.on('message', (data) => {
+    let msg;
+    try {
+      msg = JSON.parse(data.toString());
+    } catch {
+      return;
+    }
+    const type = (msg.type || '').toUpperCase();
+    switch (type) {
+      case 'REGISTER': handleRegister(ws, msg); break;
+      case 'DEVICE_LIST': handleDeviceList(ws); break;
+      case 'OFFER': handleOffer(msg); break;
+      case 'ANSWER':
+      case 'CONNECTION_REJECTED':
+        pending.delete(keyOf(msg.toDeviceId, msg.fromDeviceId));
+        forward(msg);
+        break;
+      case 'ICE_CANDIDATE':
+      case 'CONTROL_COMMAND':
+        forward(msg);
+        break;
+      default:
+        forward(msg);
+    }
+  });
+
+  ws.on('close', () => {
+    for (const [id, s] of sessions) {
+      if (s.ws === ws) { sessions.delete(id); break; }
+    }
+  });
+});
+
+function handleRegister(ws, msg) {
+  const id = msg.fromDeviceId;
+  const type = (msg.deviceType || '').toUpperCase();
+  if (!id || !type) return;
+  sessions.set(id, { ws, type });
+  send(ws, { type: 'REGISTER_SUCCESS', deviceId: id });
+  console.log(`设备注册: ${id} (${type})`);
+}
+
+function handleDeviceList(ws) {
+  const controllers = [];
+  const controlled = [];
+  for (const [id, s] of sessions) {
+    if (s.type === 'CONTROLLER') controllers.push(id);
+    else if (s.type === 'CONTROLLED') controlled.push(id);
+  }
+  send(ws, { type: 'DEVICE_LIST', controllers, controlled });
+}
+
+function handleOffer(msg) {
+  const from = msg.fromDeviceId;
+  const to = msg.toDeviceId;
+  const fromType = sessions.get(from)?.type;
+  const toType = sessions.get(to)?.type;
+
+  if (fromType !== 'CONTROLLER' || toType !== 'CONTROLLED') {
+    send(sessions.get(from)?.ws, {
+      type: 'REQUEST_ERROR',
+      toDeviceId: to,
+      payload: '连接请求只能由 CONTROLLER 发往 CONTROLLED',
+    });
+    return;
+  }
+  const target = sessions.get(to)?.ws;
+  if (!target) {
+    send(sessions.get(from)?.ws, {
+      type: 'TARGET_OFFLINE',
+      toDeviceId: to,
+      payload: '目标被控端不在线，请确认设备已开启并连接服务器',
+    });
+    return;
+  }
+  pending.set(keyOf(from, to), true);
+  forward(msg);
+}
+
+function forward(msg) {
+  const target = sessions.get(msg.toDeviceId)?.ws;
+  if (!target) return;
+  send(target, msg);
+}
+
+console.log(`信令服务器已启动: ws://localhost:${PORT}${PATH}`);