Refactor VPN implementation and add SingBoxLauncher integration

Replaced ProxyVpnService with SingBoxLauncher for enhanced VPN control and functionality. Introduced new utilities such as IpUtil and HttpUtil for network-related operations. Updated MainActivity to utilize the new VPN workflow and removed outdated VPN service logic.

.idea/deploymentTargetSelector.xml

@@ -5,9 +5,6 @@
       <SelectionState runConfigName="app">
         <option name="selectionMode" value="DROPDOWN" />
       </SelectionState>
-      <SelectionState runConfigName="Vpn">
-        <option name="selectionMode" value="DROPDOWN" />
-      </SelectionState>
     </selectionStates>
   </component>
 </project>

app/src/main/AndroidManifest.xml

@@ -1,7 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
-<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
 <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
 <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
 <uses-permission android:name="android.permission.FOREGROUND_SERVICE_MEDIA_PROJECTION" />

app/src/main/java/com/example/studyapp/MainActivity.java

@@ -21,9 +21,12 @@ import androidx.appcompat.app.AppCompatActivity;
 
 import com.example.studyapp.request.ScriptResultRequest;
 import com.example.studyapp.service.CloudPhoneManageService;
+import com.example.studyapp.socks.SingBoxLauncher;
+import com.example.studyapp.utils.IpUtil;
 import com.example.studyapp.utils.ShellUtils;
 
 import java.io.File;
+import java.lang.ref.WeakReference;
 
 import retrofit2.Call;
 import retrofit2.Callback;
@@ -43,23 +46,6 @@ public class MainActivity extends AppCompatActivity {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
 
-        vpnRequestLauncher = registerForActivityResult(
-            new ActivityResultContracts.StartActivityForResult(),
-            result -> {
-                if (result.getResultCode() == RESULT_OK) {
-                    startProxyVpnService();
-                } else {
-                    Toast.makeText(this, "VPN setup failed", Toast.LENGTH_SHORT).show();
-                    new AlertDialog.Builder(this)
-                            .setTitle("VPN 配置失败")
-                            .setMessage("未能成功配置 VPN。要重试吗？")
-                            .setPositiveButton("重试", (dialog, which) -> startProxyVpn(this))
-                            .setNegativeButton("取消", null)
-                            .show();
-                }
-            }
-        );
-
         // 检查存储权限
         if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE)
                 != PackageManager.PERMISSION_GRANTED) {
@@ -68,7 +54,6 @@ public class MainActivity extends AppCompatActivity {
                     REQUEST_CODE_STORAGE_PERMISSION);
         }
 
-        startProxyVpn(this);
 
         // 查找按钮对象
         Button runScriptButton = findViewById(R.id.run_script_button);
@@ -79,18 +64,20 @@ public class MainActivity extends AppCompatActivity {
         }
     }
 
-    private void startProxyVpn(Context context) { // 避免强制依赖 MainActivity
+    private void startProxyVpn(Context context) {
-        Intent intent = VpnService.prepare(context);
+        WeakReference<Context> contextRef = new WeakReference<>(context);
-        if (intent != null) {
+        new Thread(() -> {
-            vpnRequestLauncher.launch(intent);
+            try {
-        } else {
+                SingBoxLauncher.getInstance().start(context, IpUtil.safeClientIp());
-            startProxyVpnService();
+            } catch (Exception e) {
+                Context ctx = contextRef.get();
+                if (ctx != null) {
+                    runOnUiThread(() ->
+                            Toast.makeText(ctx, "Failed to start VPN: " + e.getMessage(), Toast.LENGTH_SHORT).show()
+                    );
                 }
             }
-
+        }).start();
-    private void startProxyVpnService() {
-        Intent serviceIntent = new Intent(this, ProxyVpnService.class);
-        startService(serviceIntent);
     }
 
     @Override
@@ -98,8 +85,8 @@ public class MainActivity extends AppCompatActivity {
         super.onRequestPermissionsResult(requestCode, permissions, grantResults);
         if (requestCode == REQUEST_CODE_STORAGE_PERMISSION) {
             if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
-                permissionHandler();
                 Toast.makeText(this, "Permissions granted", Toast.LENGTH_SHORT).show();
+                startProxyVpn(this);
             } else {
                 Toast.makeText(this, "Permission denied", Toast.LENGTH_SHORT).show();
                 // 可选择终止操作或退出程序
@@ -219,23 +206,4 @@ public class MainActivity extends AppCompatActivity {
             }
         });
     }
-
-    private void grantPermission(String name)
-    {
-        ShellUtils.execRootCmd("pm grant " + this.getPackageName() + " " + name);
-    }
-    private void appopsAllow(String name)
-    {
-        ShellUtils.execRootCmd("appops set " + this.getPackageName() + " " + name + " allow");
-    }
-    private void permissionHandler() {
-        grantPermission("android.permission.SYSTEM_ALERT_WINDOW");
-        grantPermission("android.permission.FOREGROUND_SERVICE");
-        grantPermission("android.permission.FOREGROUND_SERVICE_MEDIA_PROJECTION");
-        grantPermission("android.permission.WRITE_SECURE_SETTINGS");
-        grantPermission("android.permission.READ_EXTERNAL_STORAGE");
-        grantPermission("android.permission.WRITE_EXTERNAL_STORAGE");
-        appopsAllow("MANAGE_EXTERNAL_STORAGE");
-    }
-
 }

app/src/main/java/com/example/studyapp/ProxyVpnService.java

@@ -1,44 +0,0 @@
-package com.example.studyapp;
-
-import android.content.Intent;
-import android.net.VpnService;
-import android.os.ParcelFileDescriptor;
-
-import java.io.IOException;
-
-public class ProxyVpnService extends VpnService {
-    private ParcelFileDescriptor vpnInterface;
-
-    @Override
-    public void onCreate() {
-        super.onCreate();
-        Builder builder = new Builder();
-        try {
-            builder.addAddress("10.0.2.15", 24); // 配置虛擬 IP
-            builder.addRoute("0.0.0.0", 0);      // 配置攔截所有流量的路由
-            builder.setSession("Proxy VPN Service");
-            builder.addDnsServer("8.8.8.8");    // 設置 DNS
-            vpnInterface = builder.establish(); // 啟動 VPN 通道，保存接口描述符
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
-    }
-
-    @Override
-    public void onDestroy() {
-        super.onDestroy();
-        if (vpnInterface != null) {
-            try {
-                vpnInterface.close();
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-
-    @Override
-    public int onStartCommand(Intent intent, int flags, int startId) {
-        // 在实际实现中可能需要处理 Intent 数据
-        return START_STICKY;
-    }
-}

app/src/main/java/com/example/studyapp/socks/SingBoxLauncher.java

@@ -0,0 +1,304 @@
+package com.example.studyapp.socks;
+
+import android.content.Context;
+import android.content.Intent;
+import android.net.ConnectivityManager;
+import android.net.NetworkInfo;
+import android.os.Handler;
+import android.os.HandlerThread;
+import android.util.Log;
+
+import com.example.studyapp.utils.ShellUtils;
+
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Future;
+import java.util.concurrent.TimeUnit;
+
+public class SingBoxLauncher {
+    private static SingBoxLauncher instance;
+    private static final String PKG = "io.nekohasekai.sfa";
+
+    private final CountDownLatch latch;
+
+    public static SingBoxLauncher getInstance() {
+        if (instance == null) {
+            synchronized (SingBoxLauncher.class) {
+                if (instance == null) {
+                    instance = new SingBoxLauncher();
+                }
+            }
+        }
+        return instance;
+    }
+
+    private final HandlerThread handlerThread;
+
+    private SingBoxLauncher() {
+        latch = new CountDownLatch(1);
+        handlerThread = new HandlerThread("SingBoxThread");
+        handlerThread.start();
+        handler = new Handler(handlerThread.getLooper());
+    }
+
+    public void shutdown() {
+        handlerThread.quitSafely();
+    }
+
+    private void checkVPNApp(int count) {
+        if (count > 3) {
+            Log.e("checkVPNApp", "Invalid count parameter: " + count);
+            return;
+        }
+
+        while (count <= 3) {
+            try {
+                if (!isProcessRunning(PKG)) {
+                    startApp(PKG);
+                } else {
+                    break;
+                }
+                // 避免 Thread.sleep，改用异步任务定时调度
+                TimeUnit.SECONDS.sleep(2);
+                count++;
+            } catch (InterruptedException e) {
+                Thread.currentThread().interrupt(); // 恢复中断状态
+                Log.e("checkVPNApp", "Thread interrupted: " + e.getMessage());
+                break;
+            }
+        }
+    }
+
+    // 工具方法
+    private boolean isProcessRunning(String pkg) {
+        String command = "ps -A | grep " + sanitizePackageName(pkg);
+        String result = ShellUtils.execRootCmdAndGetResult(command);
+        return result != null && !result.isEmpty();
+    }
+
+    private void startApp(String pkg) {
+        ShellUtils.execRootCmd("am start -n " + sanitizePackageName(pkg) + "/.ui.MainActivity");
+    }
+
+    private String sanitizePackageName(String pkg) {
+        if (pkg.matches("^[a-zA-Z0-9._-]+$")) {
+            return pkg;
+        } else {
+            throw new IllegalArgumentException("Unsafe package name: " + pkg);
+        }
+    }
+
+    public boolean start(Context context,String originIp) {
+        checkVPNApp(0);
+
+        Future<?> future = executorService.submit(() -> {
+
+            String content = "{\n" +
+                    "  \"dns\": {\n" +
+                    "    \"independent_cache\": true,\n" +
+                    "    \"servers\": [\n" +
+                    "      {\n" +
+                    "        \"tag\": \"cloudflare\",\n" +
+                    "        \"address\": \"tls://1.1.1.1\"\n" +
+                    "      },\n" +
+                    "      {\n" +
+                    "        \"tag\": \"local\",\n" +
+                    "        \"address\": \"tls://1.1.1.1\",\n" +
+                    "        \"detour\": \"direct\"\n" +
+                    "      },\n" +
+                    "      {\n" +
+                    "        \"tag\": \"remote\",\n" +
+                    "        \"address\": \"fakeip\"\n" +
+                    "      }\n" +
+                    "    ],\n" +
+                    "    \"rules\": [\n" +
+                    "      {\n" +
+                    "        \"server\": \"local\",\n" +
+                    "        \"outbound\": \"any\"\n" +
+                    "      },\n" +
+                    "      {\n" +
+                    "        \"server\": \"remote\",\n" +
+                    "        \"query_type\": [\n" +
+                    "          \"A\",\n" +
+                    "          \"AAAA\"\n" +
+                    "        ]\n" +
+                    "      }\n" +
+                    "    ],\n" +
+                    "    \"fakeip\": {\n" +
+                    "      \"enabled\": true,\n" +
+                    "      \"inet4_range\": \"198.18.0.0/15\",\n" +
+                    "      \"inet6_range\": \"fc00::/18\"\n" +
+                    "    },\n" +
+                    "    \"final\": \"cloudflare\"\n" +
+                    "  },\n" +
+                    "  \"inbounds\": [\n" +
+                    "    {\n" +
+                    "      \"type\": \"tun\",\n" +
+                    "      \"tag\": \"tun-in\",\n" +
+                    "      \"address\": [\n" +
+                    "        \"172.19.0.1/28\"\n" +
+                    "      ],\n" +
+                    "      \"auto_route\": true,\n" +
+                    "      \"sniff\": true,\n" +
+                    "      \"strict_route\": false,\n" +
+                    "      \"domain_strategy\": \"ipv4_only\"\n" +
+                    "    }\n" +
+                    "  ],\n" +
+                    "  \"log\": {\n" +
+                    "    \"level\": \"trace\"\n" +
+                    "  },\n" +
+                    "  \"outbounds\": [\n" +
+                    "    {\n" +
+                    "      \"type\": \"socks\",\n" +
+                    "      \"tag\": \"proxy\",\n" +
+                    "      \"version\": \"5\",\n" +
+                    "      \"network\": \"tcp\",\n" +
+                    "      \"udp_over_tcp\": {\n" +
+                    "        \"enabled\": true\n" +
+                    "      },\n" +
+                    "      \"username\": \"cut_team_protoc_vast-zone-custom-region-us\",\n" +
+                    "      \"password\": \"Leoliu811001\",\n" +
+                    "      \"server\": \"105bd58a50330382.na.ipidea.online\",\n" +
+                    "      \"server_port\": 2333\n" +
+                    "    },\n" +
+                    "    {\n" +
+                    "      \"type\": \"dns\",\n" +
+                    "      \"tag\": \"dns-out\"\n" +
+                    "    },\n" +
+                    "    {\n" +
+                    "      \"type\": \"direct\",\n" +
+                    "      \"tag\": \"direct\"\n" +
+                    "    },\n" +
+                    "    {\n" +
+                    "      \"type\": \"block\",\n" +
+                    "      \"tag\": \"block\"\n" +
+                    "    }\n" +
+                    "  ],\n" +
+                    "  \"route\": {\n" +
+                    "    \"final\": \"proxy\",\n" +
+                    "    \"auto_detect_interface\": true,\n" +
+                    "    \"rules\": [\n" +
+                    "      {\n" +
+                    "        \"protocol\": \"dns\",\n" +
+                    "        \"outbound\": \"dns-out\"\n" +
+                    "      },\n" +
+                    "      {\n" +
+                    "        \"protocol\": [\n" +
+                    "          \"stun\",\n" +
+                    "          \"quic\"\n" +
+                    "        ],\n" +
+                    "        \"outbound\": \"block\"\n" +
+                    "      },\n" +
+                    "      {\n" +
+                    "        \"ip_is_private\": true,\n" +
+                    "        \"outbound\": \"direct\"\n" +
+                    "      },\n" +
+                    "      {\n" +
+                    "        \"ip_cidr\": \"\",\n" +
+                    "        \"outbound\": \"direct\"\n" +
+                    "      },\n" +
+                    "      {\n" +
+                    "        \"domain\": \"cpm-api.resi-prod.resi-oversea.com\",\n" +
+                    "        \"domain_suffix\": \"resi-oversea.com\",\n" +
+                    "        \"outbound\": \"direct\"\n" +
+                    "      }\n" +
+                    "    ]\n" +
+                    "  }\n" +
+                    "}";
+
+            Intent intent = new Intent();
+            intent.setAction(PKG + ".action.START_VPN");
+            intent.putExtra("content", content);
+            intent.putExtra("originIp", originIp);
+            context.sendBroadcast(intent);
+
+            handler.postDelayed(() -> checkVPN(context, 0), 1000);
+        });
+
+        try {
+            future.get(); // 等待任务完成，捕获异常
+        } catch (Exception e) {
+            Log.e("TaskError", "Task failed to execute properly", e);
+        }
+
+        try {
+            boolean result = latch.await(5, TimeUnit.SECONDS); // 设置超时时间
+            if (!result) {
+                isVpnRunning = false; // 超时回退逻辑
+            }
+        } catch (InterruptedException ignored) {
+            isVpnRunning = false;
+        }
+        return isVpnRunning;
+    }
+
+    public void stop(Context context) {
+        if (context == null || PKG == null || PKG.trim().isEmpty()) {
+            Log.e("SingBoxLauncher", "Invalid context or package name.");
+            return;
+        }
+
+        try {
+            // 构建广播
+            Intent intent = new Intent();
+            intent.setAction(PKG + ".action.STOP_VPN");
+            intent.setPackage(PKG); // 安全性增强，限制接收者
+            context.sendBroadcast(intent);
+
+            // 检查进程是否仍在运行
+            if (isProcessRunning(PKG)) {
+                // 添加延迟等待，确保广播完成
+                Thread.sleep(1000);
+
+                // 执行强制停止命令
+                ShellUtils.execRootCmd("am force-stop " + sanitizePackageName(PKG));
+            }
+        } catch (Exception e) {
+            Log.e("SingBoxLauncher", "Error while stopping VPN app: " + e.getMessage());
+        }
+    }
+
+    private void checkVPN(Context context, int count) {
+        try {
+            if (checkVPN(context)) {
+                isVpnRunning = true;
+                Log.d("VPNCheck", "VPN is running.");
+                latch.countDown();
+            } else {
+                Log.d("VPNCheck", "VPN is not running. Retry count: " + count);
+                if (count > 3) {
+                    isVpnRunning = false;
+                    latch.countDown();
+                } else {
+                    final int countFinal = count + 1;
+                    handler.removeCallbacksAndMessages(null); // 清理旧任务
+                    handler.postDelayed(() -> checkVPN(context, countFinal), 1000);
+                }
+            }
+        } catch (Exception e) {
+            Log.e("VPNCheck", "Error in checkVPN", e);
+            isVpnRunning = false;
+            latch.countDown();
+        }
+    }
+    // 检查网络中的 VPN 连接
+    private boolean checkVPN(Context context) {
+        ConnectivityManager connectivityManager =
+                (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
+        if (connectivityManager == null) return false;
+
+        android.net.Network activeNetwork = connectivityManager.getActiveNetwork();
+        if (activeNetwork == null) return false;
+
+        android.net.NetworkCapabilities networkCapabilities =
+                connectivityManager.getNetworkCapabilities(activeNetwork);
+        if (networkCapabilities == null) return false;
+
+        return networkCapabilities.hasTransport(android.net.NetworkCapabilities.TRANSPORT_VPN);
+    }
+
+    private boolean isVpnRunning;
+    private final ExecutorService executorService = Executors.newSingleThreadExecutor();
+    private final Handler handler;
+}

app/src/main/java/com/example/studyapp/utils/HttpUtil.java

@@ -0,0 +1,59 @@
+package com.example.studyapp.utils;
+
+import android.util.Log;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.HttpURLConnection;
+import java.net.URL;
+
+public class HttpUtil {
+    private static final String TAG = "HttpUtil";
+
+    public static String requestGet(String url) throws IOException {
+        Log.d(TAG, "[requestGet][url=" + url + "]");
+        HttpURLConnection connection = (HttpURLConnection)new URL(url).openConnection();
+        /*connection.setRequestProperty("Connection", "keep-alive");
+        connection.setRequestProperty("Accept-Encoding", "gzip, deflate");
+        connection.setRequestProperty("X-Requested-With", "com.android.chrome");
+        connection.setRequestProperty("Sec-Fetch-Mode", "navigate");
+        connection.setRequestProperty("Sec-Fetch-User", "?1");
+        connection.setRequestProperty("Sec-Fetch-Dest", "document");
+        connection.setRequestProperty("Sec-Fetch-Site", "none");
+        connection.setRequestProperty("Sec-Ch-Ua-Mobile", "?1");
+        connection.setRequestProperty("Sec-Ch-Ua-Platform", "Android");
+        connection.setRequestProperty("Upgrade-Insecure-Requests", "1");
+        connection.setInstanceFollowRedirects(true);*/
+        connection.setDoInput(true);
+        connection.setConnectTimeout(15000);
+        connection.setReadTimeout(15000);
+        connection.setRequestMethod("GET");
+        connection.setUseCaches(false);
+        connection.connect();
+
+        String responseBody = readResponseBody(connection);
+        Log.d(TAG, "[requestGet][response=" + responseBody + "]");
+        connection.disconnect();
+
+        return responseBody;
+    }
+
+
+
+    private static String readResponseBody(HttpURLConnection connection) throws IOException {
+        InputStream inputStream = connection.getInputStream();
+        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
+        byte[] buffer = new byte[0x400];
+        while(true) {
+            int l = inputStream.read(buffer);
+            if(l == -1) {
+                break;
+            }
+
+            byteArrayOutputStream.write(buffer, 0, l);
+        }
+
+        return byteArrayOutputStream.toString();
+    }
+}

app/src/main/java/com/example/studyapp/utils/IpUtil.java

@@ -0,0 +1,67 @@
+package com.example.studyapp.utils;
+
+import android.text.TextUtils;
+
+import org.json.JSONObject;
+
+import java.util.concurrent.CompletableFuture;
+import java.util.regex.Pattern;
+
+public class IpUtil {
+    public static boolean isValidIPAddress(String ipAddress) {
+        if ((ipAddress != null) && (!ipAddress.isEmpty()))
+        {
+            return Pattern.matches("^([1-9]|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])(\\.(\\d|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])){3}$", ipAddress);
+        }
+        return false;
+    }
+    public static String getClientIp(String url) {
+        try {
+            String s = HttpUtil.requestGet(url);
+            if (!TextUtils.isEmpty(s) && isValidIPAddress(s))
+            {
+                return s;
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return "";
+    }
+    public static String getClientIp() {
+        return getClientIp("http://47.236.153.142/");
+    }
+
+    public static String safeClientIp() {
+        String result = getClientIp("http://47.236.153.142/");//SG
+        if (TextUtils.isEmpty(result))
+        {
+            result = getClientIp("http://8.211.204.20/");//UK
+        }
+        return result;
+    }
+
+    public static String checkClientIp(String excludeCountry)
+    {
+        try {
+            String s = HttpUtil.requestGet("https://get.geojs.io/v1/ip/country.json");
+            if (!TextUtils.isEmpty(s))
+            {
+                JSONObject json = new JSONObject(s);
+                if (excludeCountry.equalsIgnoreCase(json.getString("country")))
+                {
+                    return "";
+                }
+                return json.getString("ip");
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return "";
+
+    }
+
+    public static CompletableFuture<String> getClientIpFuture()
+    {
+        return CompletableFuture.supplyAsync(IpUtil::safeClientIp);
+    }
+}

app/src/main/java/com/example/studyapp/utils/ShellUtils.java

@@ -54,10 +54,10 @@ public class ShellUtils {
         return false;
     }
 
-    public static String execRootCmdAndGetResult(String cmd) {
+    public static String execRootCmdAndGetResult(String cmd){
         if (cmd == null || cmd.trim().isEmpty() || !isCommandSafe(cmd)) {
             Log.e("ShellUtils", "Unsafe or empty command. Aborting execution.");
-            return null;
+            throw new IllegalArgumentException("Unsafe or empty command.");
         }
 
         Process process = null;

app/src/main/res/layout/activity_main.xml

@@ -16,5 +16,6 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:text="点击开始运行"
+        android:contentDescription="运行脚本按钮"
         android:layout_centerInParent="true"/>
 </LinearLayout>