Add dynamic local SOCKS port option

Introduce a dynamic SOCKS port feature: add PREF_DYNAMIC_SOCKS_PORT key, settings UI checkbox and localized strings, and pref XML entry. SettingsManager now holds a runtimeSocksPort, can generate and refresh a random port (generateRandomSocksPort, refreshRuntimeSocksPort) and respects the dynamic setting when returning getSocksPort(). V2Ray service startup triggers a runtime port refresh. Settings UI disables manual SOCKS port input when dynamic mode is enabled. Minor i18n additions (QR code/title) included for several locales.

V2rayNG/app/src/main/java/com/v2ray/ang/AppConfig.kt

@@ -58,6 +58,7 @@ object AppConfig {
     const val PREF_PROXY_SHARING = "pref_proxy_sharing_enabled"
     const val PREF_ALLOW_INSECURE = "pref_allow_insecure"
     const val PREF_SOCKS_PORT = "pref_socks_port"
+    const val PREF_DYNAMIC_SOCKS_PORT = "pref_dynamic_socks_port"
     const val PREF_SOCKS_USERNAME = "pref_socks_username"
     const val PREF_SOCKS_PASSWORD = "pref_socks_password"
     const val PREF_REMOTE_DNS = "pref_remote_dns"

V2rayNG/app/src/main/java/com/v2ray/ang/handler/SettingsManager.kt

@@ -32,9 +32,13 @@ import java.io.File
 import java.io.FileOutputStream
 import java.util.Collections
 import java.util.Locale
+import kotlin.random.Random
 
 object SettingsManager {
 
+    @Volatile
+    private var runtimeSocksPort: Int? = null
+
     fun initApp(context: Context) {
         ensureDefaultSettings()
         //ensureDefaultSubscription()
@@ -273,7 +277,22 @@ object SettingsManager {
      * @return The SOCKS port.
      */
     fun getSocksPort(): Int {
-        return Utils.parseInt(MmkvManager.decodeSettingsString(AppConfig.PREF_SOCKS_PORT), AppConfig.PORT_SOCKS.toInt())
+        val port =
+            if (IsDynamicSocksPort()) {
+                runtimeSocksPort ?: refreshRuntimeSocksPort()
+            } else {
+                Utils.parseInt(MmkvManager.decodeSettingsString(AppConfig.PREF_SOCKS_PORT), AppConfig.PORT_SOCKS.toInt())
+            }
+        return port ?: AppConfig.PORT_SOCKS.toInt()
+    }
+
+    @Synchronized
+    fun refreshRuntimeSocksPort(): Int? {
+        if (IsDynamicSocksPort()) {
+            runtimeSocksPort = generateRandomSocksPort()
+            return runtimeSocksPort
+        }
+        return null
     }
 
     fun getSocksUsername(): String? {
@@ -292,6 +311,18 @@ object SettingsManager {
         return getSocksPort() + if (Utils.isXray()) 0 else 1
     }
 
+    private fun IsDynamicSocksPort(): Boolean {
+        return MmkvManager.decodeSettingsBool(AppConfig.PREF_DYNAMIC_SOCKS_PORT, false)
+    }
+
+    private fun generateRandomSocksPort(): Int {
+        return if (Utils.isXray()) {
+            Random.nextInt(10000, 65536)
+        } else {
+            Random.nextInt(10000, 65535)
+        }
+    }
+
     /**
      * Initialize assets.
      * @param context The application context.

V2rayNG/app/src/main/java/com/v2ray/ang/handler/V2RayServiceManager.kt

@@ -173,6 +173,8 @@ object V2RayServiceManager {
         }
 
         Log.i(AppConfig.TAG, "StartCore-Manager: Starting core loop for ${config.remarks}")
+        // refresh socks port when enabled dynamic socks port
+        SettingsManager.refreshRuntimeSocksPort()
         val result = V2rayConfigManager.getV2rayConfig(service, guid)
         if (!result.status) {
             Log.e(AppConfig.TAG, "StartCore-Manager: Failed to get V2Ray config")

V2rayNG/app/src/main/java/com/v2ray/ang/ui/SettingsActivity.kt

@@ -51,6 +51,8 @@ class SettingsActivity : BaseActivity() {
         private val autoUpdateCheck by lazy { findPreference<CheckBoxPreference>(AppConfig.SUBSCRIPTION_AUTO_UPDATE) }
         private val autoUpdateInterval by lazy { findPreference<EditTextPreference>(AppConfig.SUBSCRIPTION_AUTO_UPDATE_INTERVAL) }
         private val mode by lazy { findPreference<ListPreference>(AppConfig.PREF_MODE) }
+        private val socksPort by lazy { findPreference<EditTextPreference>(AppConfig.PREF_SOCKS_PORT) }
+        private val dynamicSocksPort by lazy { findPreference<CheckBoxPreference>(AppConfig.PREF_DYNAMIC_SOCKS_PORT) }
 
         private val hevTunLogLevel by lazy { findPreference<ListPreference>(AppConfig.PREF_HEV_TUNNEL_LOGLEVEL) }
         private val hevTunRwTimeout by lazy { findPreference<EditTextPreference>(AppConfig.PREF_HEV_TUNNEL_RW_TIMEOUT) }
@@ -112,6 +114,11 @@ class SettingsActivity : BaseActivity() {
                 updateHevTunSettings(newValue as Boolean)
                 true
             }
+
+            dynamicSocksPort?.setOnPreferenceChangeListener { _, newValue ->
+                updateDynamicSocksPort(newValue as Boolean)
+                true
+            }
         }
 
         private fun initPreferenceSummaries() {
@@ -175,6 +182,8 @@ class SettingsActivity : BaseActivity() {
 
             // Initialize auto-update interval state
             autoUpdateInterval?.isEnabled = MmkvManager.decodeSettingsBool(AppConfig.SUBSCRIPTION_AUTO_UPDATE, false)
+
+            updateDynamicSocksPort(MmkvManager.decodeSettingsBool(AppConfig.PREF_DYNAMIC_SOCKS_PORT, false))
         }
 
         private fun updateMode(value: String?) {
@@ -266,6 +275,10 @@ class SettingsActivity : BaseActivity() {
             fragmentInterval?.isEnabled = enabled
         }
 
+        private fun updateDynamicSocksPort(enabled: Boolean) {
+            socksPort?.isEnabled = !enabled
+        }
+
         private fun updateHevTunSettings(enabled: Boolean) {
             hevTunLogLevel?.isEnabled = enabled
             hevTunRwTimeout?.isEnabled = enabled

V2rayNG/app/src/main/res/values-ar/strings.xml

@@ -219,6 +219,8 @@
 
     <string name="title_pref_socks_port">منفذ بروكسي Local</string>
     <string name="summary_pref_socks_port">منفذ بروكسي Local</string>
+    <string name="title_pref_dynamic_socks_port">Enable dynamic local proxy port</string>
+    <string name="summary_pref_dynamic_socks_port">Generate a random local proxy port each time the inbound is created</string>
     <string name="title_pref_socks_username">Local proxy username (optional)</string>
     <string name="summary_pref_socks_username">Username</string>
     <string name="title_pref_socks_password">Local proxy password (optional)</string>
@@ -247,6 +249,7 @@
     <string name="summary_pref_tg_group">الانضمام إلى مجموعة Telegram</string>
     <string name="toast_tg_app_not_found">لم يتم العثور على تطبيق Telegram</string>
     <string name="title_privacy_policy">سياسة الخصوصية</string>
+    <string name="title_qr_code">QR code</string>
     <string name="title_about">حول\nترجمة م. ابراهيم قاسم</string>
     <string name="title_source_code">الكود المصدري</string>
     <string name="title_oss_license">Open Source licenses</string>

V2rayNG/app/src/main/res/values-bn/strings.xml

@@ -219,6 +219,8 @@
 
     <string name="title_pref_socks_port">Local প্রক্সি পোর্ট</string>
     <string name="summary_pref_socks_port">Local প্রক্সি পোর্ট</string>
+    <string name="title_pref_dynamic_socks_port">Enable dynamic local proxy port</string>
+    <string name="summary_pref_dynamic_socks_port">Generate a random local proxy port each time the inbound is created</string>
     <string name="title_pref_socks_username">Local proxy username (optional)</string>
     <string name="summary_pref_socks_username">Username</string>
     <string name="title_pref_socks_password">Local proxy password (optional)</string>
@@ -247,6 +249,7 @@
     <string name="summary_pref_tg_group">টেলিগ্রাম গ্রুপে যোগদান করুন</string>
     <string name="toast_tg_app_not_found">টেলিগ্রাম অ্যাপ পাওয়া যায়নি</string>
     <string name="title_privacy_policy">গোপনীয়তা নীতি</string>
+    <string name="title_qr_code">QR code</string>
     <string name="title_about">সম্পর্কিত</string>
     <string name="title_source_code">সোর্স কোড</string>
     <string name="title_oss_license">Open Source licenses</string>

V2rayNG/app/src/main/res/values-bqi-rIR/strings.xml

@@ -219,6 +219,12 @@
 
     <string name="title_pref_socks_port">پورت پروکسی مهلی</string>
     <string name="summary_pref_socks_port">پورت پروکسی مهلی</string>
+    <string name="title_pref_dynamic_socks_port">Enable dynamic local proxy port</string>
+    <string name="summary_pref_dynamic_socks_port">Generate a random local proxy port each time the inbound is created</string>
+    <string name="title_pref_socks_username">Local proxy username (optional)</string>
+    <string name="summary_pref_socks_username">Username</string>
+    <string name="title_pref_socks_password">Local proxy password (optional)</string>
+    <string name="summary_pref_socks_password">Password</string>
 
     <string name="title_pref_local_dns_port">پورت DNS مهلی</string>
     <string name="summary_pref_local_dns_port">پورت DNS مهلی</string>
@@ -243,6 +249,7 @@
     <string name="summary_pref_tg_group">ٱووڌن من بونکۊ تلگرام</string>
     <string name="toast_tg_app_not_found">برنومه تلگرامن نجوست</string>
     <string name="title_privacy_policy">هریم سیخومی</string>
+    <string name="title_qr_code">QR code</string>
     <string name="title_about">زبار</string>
     <string name="title_source_code">کود بونچک</string>
     <string name="title_oss_license">موجوزا کود بونچک</string>

V2rayNG/app/src/main/res/values-fa/strings.xml

@@ -217,6 +217,8 @@
 
     <string name="title_pref_socks_port">پورت پروکسی محلی</string>
     <string name="summary_pref_socks_port">پورت پروکسی محلی</string>
+    <string name="title_pref_dynamic_socks_port">Enable dynamic local proxy port</string>
+    <string name="summary_pref_dynamic_socks_port">Generate a random local proxy port each time the inbound is created</string>
     <string name="title_pref_socks_username">Local proxy username (optional)</string>
     <string name="summary_pref_socks_username">Username</string>
     <string name="title_pref_socks_password">Local proxy password (optional)</string>
@@ -246,6 +248,7 @@
     <string name="toast_tg_app_not_found">برنامه تلگرام پیدا نشد</string>
 
     <string name="title_privacy_policy">حریم خصوصی</string>
+    <string name="title_qr_code">QR code</string>
     <string name="title_about">درباره</string>
     <string name="title_source_code">کد منبع</string>
     <string name="title_oss_license">مجوز های منبع باز</string>

V2rayNG/app/src/main/res/values-ru/strings.xml

@@ -218,6 +218,8 @@
 
     <string name="title_pref_socks_port">Порт локального прокси</string>
     <string name="summary_pref_socks_port">Порт локального прокси</string>
+    <string name="title_pref_dynamic_socks_port">Enable dynamic local proxy port</string>
+    <string name="summary_pref_dynamic_socks_port">Generate a random local proxy port each time the inbound is created</string>
     <string name="title_pref_socks_username">Имя пользователя локального прокси (опционально)</string>
     <string name="summary_pref_socks_username">Имя пользователя</string>
     <string name="title_pref_socks_password">Пароль локального прокси (опционально)</string>
@@ -246,6 +248,7 @@
     <string name="summary_pref_tg_group">Присоединиться к группе в Telegram</string>
     <string name="toast_tg_app_not_found">Приложение Telegram не найдено</string>
     <string name="title_privacy_policy">Политика конфиденциальности</string>
+    <string name="title_qr_code">QR-код</string>
     <string name="title_about">О приложении</string>
     <string name="title_source_code">Исходный код</string>
     <string name="title_oss_license">Лицензии открытого исходного кода</string>

V2rayNG/app/src/main/res/values-vi/strings.xml

@@ -219,6 +219,8 @@
 
     <string name="title_pref_socks_port">Cổng Proxy Local</string>
     <string name="summary_pref_socks_port">Cổng Proxy Local</string>
+    <string name="title_pref_dynamic_socks_port">Enable dynamic local proxy port</string>
+    <string name="summary_pref_dynamic_socks_port">Generate a random local proxy port each time the inbound is created</string>
     <string name="title_pref_socks_username">Tên người dùng Proxy Local (Không bắt buộc)</string>
     <string name="summary_pref_socks_username">Tên người dùng</string>
     <string name="title_pref_socks_password">Mật khẩu Proxy Local (Không bắt buộc)</string>
@@ -248,6 +250,7 @@
     <string name="toast_tg_app_not_found">Không tìm thấy ứng dụng Telegram!</string>
 
     <string name="title_privacy_policy">Chính sách bảo mật</string>
+    <string name="title_qr_code">Mã QR</string>
     <string name="title_about">Giới thiệu</string>
     <string name="title_source_code">Mã nguồn</string>
     <string name="title_oss_license">Open Source licenses</string>

V2rayNG/app/src/main/res/values-zh-rCN/strings.xml

@@ -216,6 +216,8 @@
 
      <string name="title_pref_socks_port">本地代理端口</string>
      <string name="summary_pref_socks_port">本地代理端口</string>
+     <string name="title_pref_dynamic_socks_port">启用动态本地代理端口</string>
+     <string name="summary_pref_dynamic_socks_port">每次生成 inbound 时随机生成一个本地代理端口</string>
      <string name="title_pref_socks_username">本地代理用户名 (可选)</string>
      <string name="summary_pref_socks_username">用户名</string>
      <string name="title_pref_socks_password">本地代理密码 (可选)</string>
@@ -245,6 +247,7 @@
     <string name="summary_pref_tg_group">加入 Telegram Group</string>
     <string name="toast_tg_app_not_found">未找到 Telegram app</string>
     <string name="title_privacy_policy">隐私权政策</string>
+    <string name="title_qr_code">二维码</string>
     <string name="title_about">关于</string>
     <string name="title_source_code">源代码</string>
     <string name="title_oss_license">Open Source licenses</string>

V2rayNG/app/src/main/res/values-zh-rTW/strings.xml

@@ -217,6 +217,8 @@
 
     <string name="title_pref_socks_port">本地代理埠</string>
     <string name="summary_pref_socks_port">本地代理埠</string>
+    <string name="title_pref_dynamic_socks_port">啟用動態本地代理埠</string>
+    <string name="summary_pref_dynamic_socks_port">每次產生 inbound 時隨機產生一個本地代理埠</string>
     <string name="title_pref_socks_username">本地代理使用者名稱 (選擇)</string>
     <string name="summary_pref_socks_username">使用者名稱</string>
     <string name="title_pref_socks_password">本地代理密碼 (選擇)</string>
@@ -246,6 +248,7 @@
     <string name="summary_pref_tg_group">加入 Telegram 群組</string>
     <string name="toast_tg_app_not_found">未找到 Telegram 應用程式</string>
     <string name="title_privacy_policy">隱私權政策</string>
+    <string name="title_qr_code">QR 碼</string>
     <string name="title_about">關於</string>
     <string name="title_source_code">原始碼</string>
     <string name="title_oss_license">Open Source licenses</string>

V2rayNG/app/src/main/res/values/strings.xml

@@ -222,6 +222,8 @@
 
     <string name="title_pref_socks_port">Local proxy port</string>
     <string name="summary_pref_socks_port">Local proxy port</string>
+    <string name="title_pref_dynamic_socks_port">Enable dynamic local proxy port</string>
+    <string name="summary_pref_dynamic_socks_port">Generate a random local proxy port each time the inbound is created</string>
     <string name="title_pref_socks_username">Local proxy username (optional)</string>
     <string name="summary_pref_socks_username">Username</string>
     <string name="title_pref_socks_password">Local proxy password (optional)</string>

V2rayNG/app/src/main/res/xml/pref_settings.xml

@@ -157,6 +157,12 @@
             android:summary="10808"
             android:title="@string/title_pref_socks_port" />
 
+        <CheckBoxPreference
+            android:defaultValue="false"
+            android:key="pref_dynamic_socks_port"
+            android:summary="@string/summary_pref_dynamic_socks_port"
+            android:title="@string/title_pref_dynamic_socks_port" />
+
         <EditTextPreference
             android:key="pref_socks_username"
             android:summary="@string/summary_pref_socks_username"