fix(webrtc): 修复主动关闭旧连接时误报断开通知，并更新 ICE 服务器列表

- 在 createPeerConnectionAndAnswer 中关闭旧连接前设置 suppressDisconnectNotify 标志，抑制 notifyRemoteDisconnected 回调，避免接受新连接时误报远程断开。
- 调整被控端、控制端、Web 控制台及 Flutter 控制端的 ICE 服务器配置，启用了内网 STUN/TURN 服务器并注释掉旧的公网 TURN 服务器。

WebRTCControlled/app/src/main/java/com/ttstd/controlled/webrtc/WebRtcClient.java

@@ -78,6 +78,9 @@ public class WebRtcClient {
 
     private RemoteDisconnectCallback remoteDisconnectCallback;
     private boolean remoteDisconnectNotified = false;
+    // 主动关闭/重建连接（如接受新连接时关闭旧连接）期间，抑制因旧 PeerConnection/
+    // DataChannel 关闭而误触发的"远程控制端断开"通知。
+    private boolean suppressDisconnectNotify = false;
 
     public interface IceEventListener {
         void onIceConnected();
@@ -120,6 +123,8 @@ public class WebRtcClient {
 
     private void notifyRemoteDisconnected() {
         if (remoteDisconnectNotified) return;
+        // 主动重建连接期间（关闭旧连接）不向上层报告断开，避免误报。
+        if (suppressDisconnectNotify) return;
         remoteDisconnectNotified = true;
         if (remoteDisconnectCallback != null) {
             remoteDisconnectCallback.onRemoteDisconnected(currentControllerId);
@@ -272,8 +277,11 @@ public class WebRtcClient {
 
     public void createPeerConnectionAndAnswer(String offerSdp, String controllerId) {
         if (peerConnection != null) {
+            // 主动关闭旧连接（用户接受新连接）期间，抑制旧连接关闭带来的误报断开回调。
             Log.d(TAG, "Closing previous peer connection");
+            suppressDisconnectNotify = true;
             closeCurrentConnection();
+            suppressDisconnectNotify = false;
         }
         this.currentControllerId = controllerId;
         this.remoteDisconnectNotified = false;
@@ -283,12 +291,12 @@ public class WebRtcClient {
         List<PeerConnection.IceServer> iceServers = new ArrayList<>();
         // 建议：如果你有 TURN 服务器，请务必在此处添加，例如：
         // iceServers.add(PeerConnection.IceServer.builder("turn:your_turn_server").setUsername("user").setPassword("pass").createIceServer());
-        iceServers.add(PeerConnection.IceServer.builder("turn:175.178.213.60:3478").setUsername("fanhuitong").setPassword("Fan19961207..").createIceServer());
+//        iceServers.add(PeerConnection.IceServer.builder("turn:175.178.213.60:3478").setUsername("fanhuitong").setPassword("Fan19961207..").createIceServer());
-        iceServers.add(PeerConnection.IceServer.builder("stun:175.178.213.60:3478").createIceServer());
+//        iceServers.add(PeerConnection.IceServer.builder("stun:175.178.213.60:3478").createIceServer());
         iceServers.add(PeerConnection.IceServer.builder("turn:47.242.112.133:3478").setUsername("ttstd").setPassword("fanhuitong").createIceServer());
         iceServers.add(PeerConnection.IceServer.builder("stun:47.242.112.133:3478").createIceServer());
-        // iceServers.add(PeerConnection.IceServer.builder("turn:192.168.5.224:3478").setUsername("tt").setPassword("fht").createIceServer());
+        iceServers.add(PeerConnection.IceServer.builder("turn:192.168.5.224:3478").setUsername("tt").setPassword("fht").createIceServer());
-        // iceServers.add(PeerConnection.IceServer.builder("stun:192.168.5.224:3478").createIceServer());
+        iceServers.add(PeerConnection.IceServer.builder("stun:192.168.5.224:3478").createIceServer());
         iceServers.add(PeerConnection.IceServer.builder("stun:stun.l.google.com:19302").createIceServer());
         iceServers.add(PeerConnection.IceServer.builder("stun:stun1.l.google.com:19302").createIceServer());
         iceServers.add(PeerConnection.IceServer.builder("stun:stun2.l.google.com:19302").createIceServer());

WebRTCController/app/src/main/java/com/ttstd/controller/webrtc/WebRtcClient.java

@@ -128,8 +128,8 @@ public class WebRtcClient {
         iceServers.add(PeerConnection.IceServer.builder("stun:175.178.213.60:3478").createIceServer());
         iceServers.add(PeerConnection.IceServer.builder("turn:47.242.112.133:3478").setUsername("ttstd").setPassword("fanhuitong").createIceServer());
         iceServers.add(PeerConnection.IceServer.builder("stun:47.242.112.133:3478").createIceServer());
-        // iceServers.add(PeerConnection.IceServer.builder("turn:192.168.5.224:3478").setUsername("tt").setPassword("fht").createIceServer());
+        iceServers.add(PeerConnection.IceServer.builder("turn:192.168.5.224:3478").setUsername("tt").setPassword("fht").createIceServer());
-        // iceServers.add(PeerConnection.IceServer.builder("stun:192.168.5.224:3478").createIceServer());
+        iceServers.add(PeerConnection.IceServer.builder("stun:192.168.5.224:3478").createIceServer());
         iceServers.add(PeerConnection.IceServer.builder("stun:stun.l.google.com:19302").createIceServer());
         iceServers.add(PeerConnection.IceServer.builder("stun:stun1.l.google.com:19302").createIceServer());
         iceServers.add(PeerConnection.IceServer.builder("stun:stun2.l.google.com:19302").createIceServer());

WebRTCControllerWeb/src/store/controllerStore.js

@@ -16,7 +16,8 @@ export const DEFAULT_ICE_SERVERS = [
   { urls: 'stun:47.242.112.133:3478' },
   { urls: 'turn:47.242.112.133:3478', username: 'ttstd', credential: 'fanhuitong' },
   // 内网 TURN（与被控端同局域网时可用）。
-  // { urls: 'stun:192.168.5.224:3478' },
+  { urls: 'stun:192.168.5.224:3478' },
+  { urls: 'turn:192.168.5.224:3478', username: 'tt', credential: 'fht' },
   // { urls: 'turn:192.168.100.224:3478', username: 'tt', credential: 'fht' },
   // { urls: 'turn:192.168.100.224:3478?transport=tcp', username: 'tt', credential: 'fht' },
   //   { urls: 'stun:stun.l.google.com:19302' },

webrtc_controller_flutter/lib/config/ice_servers.dart

@@ -43,6 +43,12 @@ const List<Map<String, dynamic>> kIceServers = [
     'username': 'ttstd',
     'credential': 'fanhuitong',
   },
+  {'urls': 'stun:192.168.5.224:3478'},
+  {
+    'urls': 'turn:192.168.5.224:3478',
+    'username': 'tt',
+    'credential': 'fht',
+  },
 ];
 
 /// 信令 WebSocket 默认地址。