Add option to start repeater on boot

Fix #9.

mobile/src/main/AndroidManifest.xml

@@ -28,6 +28,7 @@
     <uses-permission android:name="android.permission.INTERNET"/>
     <uses-permission android:name="android.permission.MANAGE_USB"
                      tools:ignore="ProtectedPermissions"/>
+    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
     <uses-permission android:name="android.permission.TETHER_PRIVILEGE"/>
     <uses-permission android:name="android.permission.WRITE_SETTINGS"
                      tools:ignore="ProtectedPermissions"/>
@@ -75,6 +76,16 @@
         </service>
         <service android:name=".client.ClientMonitorService"/>
 
+        <receiver
+            android:name=".BootReceiver"
+            android:directBootAware="true"
+            android:enabled="false">
+            <intent-filter>
+                <action android:name="android.intent.action.BOOT_COMPLETED"/>
+                <action android:name="android.intent.action.LOCKED_BOOT_COMPLETED" />
+            </intent-filter>
+        </receiver>
+
         <provider
             android:name="androidx.core.content.FileProvider"
             android:authorities="be.mygod.vpnhotspot.log"

mobile/src/main/java/be/mygod/vpnhotspot/BootReceiver.kt

@@ -0,0 +1,32 @@
+package be.mygod.vpnhotspot
+
+import android.content.BroadcastReceiver
+import android.content.ComponentName
+import android.content.Context
+import android.content.Intent
+import android.content.pm.PackageManager
+import androidx.core.content.ContextCompat
+import be.mygod.vpnhotspot.App.Companion.app
+
+class BootReceiver : BroadcastReceiver() {
+    companion object {
+        private val componentName by lazy { ComponentName(app, BootReceiver::class.java) }
+        var enabled: Boolean
+            get() = app.packageManager.getComponentEnabledSetting(componentName) ==
+                    PackageManager.COMPONENT_ENABLED_STATE_ENABLED
+            set(value) = app.packageManager.setComponentEnabledSetting(componentName,
+                    if (value) PackageManager.COMPONENT_ENABLED_STATE_ENABLED
+                    else PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP)
+
+        private var started = false
+    }
+
+    override fun onReceive(context: Context, intent: Intent) {
+        if (started) return
+        when (intent.action) {
+            Intent.ACTION_BOOT_COMPLETED, Intent.ACTION_LOCKED_BOOT_COMPLETED -> started = true
+            else -> return
+        }
+        ContextCompat.startForegroundService(context, Intent(context, RepeaterService::class.java))
+    }
+}

mobile/src/main/java/be/mygod/vpnhotspot/SettingsPreferenceFragment.kt

@@ -8,6 +8,7 @@ import androidx.core.content.FileProvider
 import androidx.core.net.toUri
 import androidx.core.os.bundleOf
 import androidx.preference.Preference
+import androidx.preference.SwitchPreference
 import be.mygod.vpnhotspot.App.Companion.app
 import be.mygod.vpnhotspot.net.Routing
 import be.mygod.vpnhotspot.net.UpstreamMonitor
@@ -27,6 +28,12 @@ class SettingsPreferenceFragment : PreferenceFragmentCompat() {
         preferenceManager.preferenceDataStore = SharedPreferenceDataStore(app.pref)
         addPreferencesFromResource(R.xml.pref_settings)
         val mainActivity = activity as MainActivity
+        val boot = findPreference("service.repeater.startOnBoot") as SwitchPreference
+        boot.setOnPreferenceChangeListener { _, value ->
+            BootReceiver.enabled = value as Boolean
+            true
+        }
+        boot.isChecked = BootReceiver.enabled
         findPreference("service.clean").setOnPreferenceClickListener {
             if (Routing.clean() == null) mainActivity.snackbar().setText(R.string.root_unavailable).show()
             else app.cleanRoutings()

mobile/src/main/res/drawable/ic_action_autorenew.xml

@@ -0,0 +1,6 @@
+<vector android:autoMirrored="true" android:height="24dp"
+    android:viewportHeight="24.0" android:viewportWidth="24.0"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android"
+    android:tint="?attr/colorControlNormal">
+    <path android:fillColor="#FF000000" android:pathData="M12,6v3l4,-4 -4,-4v3c-4.42,0 -8,3.58 -8,8 0,1.57 0.46,3.03 1.24,4.26L6.7,14.8c-0.45,-0.83 -0.7,-1.79 -0.7,-2.8 0,-3.31 2.69,-6 6,-6zM18.76,7.74L17.3,9.2c0.44,0.84 0.7,1.79 0.7,2.8 0,3.31 -2.69,6 -6,6v-3l-4,4 4,4v-3c4.42,0 8,-3.58 8,-8 0,-1.57 -0.46,-3.03 -1.24,-4.26z"/>
+</vector>

mobile/src/main/res/values-zh-rCN/strings.xml

@@ -65,6 +65,7 @@
     <string name="settings_service_repeater_strict_summary">只允许通过 VPN 隧道的包通过，不适用于系统共享</string>
     <string name="settings_service_disable_ipv6">禁用 IPv6 共享</string>
     <string name="settings_service_disable_ipv6_summary">防止 IPv6 VPN 泄漏。</string>
+    <string name="settings_service_repeater_start_on_boot">开机自启动中继</string>
     <string name="settings_service_dns">备用 DNS 服务器[:端口]</string>
     <string name="settings_service_upstream">上游网络接口</string>
     <string name="settings_service_upstream_auto">自动检测系统 VPN</string>

mobile/src/main/res/values/strings.xml

@@ -70,6 +70,7 @@
         apply to system tethering.</string>
     <string name="settings_service_disable_ipv6">Disable IPv6 tethering</string>
     <string name="settings_service_disable_ipv6_summary">Enabling this option will prevent VPN leaks via IPv6.</string>
+    <string name="settings_service_repeater_start_on_boot">Start repeater on boot</string>
     <string name="settings_service_dns">Fallback DNS server[:port]</string>
     <string name="settings_service_upstream">Upstream network interface</string>
     <string name="settings_service_upstream_auto">Auto detect system VPN</string>

mobile/src/main/res/xml/pref_settings.xml

@@ -28,6 +28,10 @@
             android:title="@string/settings_service_dns"
             android:singleLine="true"
             android:defaultValue="8.8.8.8"/>
+        <SwitchPreference
+            android:key="service.repeater.startOnBoot"
+            android:icon="@drawable/ic_action_autorenew"
+            android:title="@string/settings_service_repeater_start_on_boot"/>
         <be.mygod.vpnhotspot.preference.AlwaysAutoCompleteEditTextPreference
             android:key="service.upstream"
             android:icon="@drawable/ic_action_settings_ethernet"