fix: trusted SSIDs bug

Fixes bugs where trusted SSIDs were getting whitespace added every time they were saved to the DB.

Fixes file explorer bug on AndroidTV where the app crashes if they do not have a file explorer installed on the device.

app/build.gradle.kts

@@ -10,17 +10,12 @@ android {
     namespace = "com.zaneschepke.wireguardautotunnel"
     compileSdk = 34
 
-    val versionMajor = 2
-    val versionMinor = 5
-    val versionPatch = 0
-    val versionBuild = 0
-
     defaultConfig {
         applicationId = "com.zaneschepke.wireguardautotunnel"
         minSdk = 26
         targetSdk = 34
-        versionCode = versionMajor * 10000 + versionMinor * 1000 + versionPatch * 100 + versionBuild
-        versionName = "${versionMajor}.${versionMinor}.${versionPatch}"
+        versionCode = 30002
+        versionName = "3.0.2"
 
         multiDexEnabled = true
 

app/src/main/AndroidManifest.xml

@@ -56,6 +56,7 @@
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
                 <category android:name="android.intent.category.LEANBACK_LAUNCHER" />
+                <action android:name="android.service.quicksettings.action.QS_TILE_PREFERENCES"/>
             </intent-filter>
         </activity>
         <activity
@@ -117,8 +118,5 @@
             </intent-filter>
         </receiver>
         <receiver android:exported="false" android:name=".receiver.NotificationActionReceiver"/>
-        <meta-data
-            android:name="com.google.mlkit.vision.DEPENDENCIES"
-            android:value="barcode_ui"/>
     </application>
 </manifest>

app/src/main/java/com/zaneschepke/wireguardautotunnel/Constants.kt

@@ -4,8 +4,12 @@ object Constants {
     const val VPN_CONNECTIVITY_CHECK_INTERVAL = 3000L
     const val VPN_STATISTIC_CHECK_INTERVAL = 10000L
     const val SNACKBAR_DELAY = 3000L
-    const val TOGGLE_TUNNEL_DELAY = 1000L
+    const val TOGGLE_TUNNEL_DELAY = 500L
     const val FADE_IN_ANIMATION_DURATION = 1000
     const val SLIDE_IN_ANIMATION_DURATION = 500
     const val SLIDE_IN_TRANSITION_OFFSET = 1000
+    const val VALID_FILE_EXTENSION = ".conf"
+    const val URI_CONTENT_SCHEME = "content"
+    const val URI_PACKAGE_SCHEME = "package"
+    const val ALLOWED_FILE_TYPES = "*/*"
 }

app/src/main/java/com/zaneschepke/wireguardautotunnel/module/ServiceModule.kt

@@ -1,5 +1,6 @@
 package com.zaneschepke.wireguardautotunnel.module
 
+import com.zaneschepke.wireguardautotunnel.service.network.EthernetService
 import com.zaneschepke.wireguardautotunnel.service.network.MobileDataService
 import com.zaneschepke.wireguardautotunnel.service.network.NetworkService
 import com.zaneschepke.wireguardautotunnel.service.network.WifiService
@@ -26,4 +27,8 @@ abstract class ServiceModule {
     @Binds
     @ServiceScoped
     abstract fun provideMobileDataService(mobileDataService : MobileDataService) : NetworkService<MobileDataService>
+
+    @Binds
+    @ServiceScoped
+    abstract fun provideEthernetService(ethernetService: EthernetService) : NetworkService<EthernetService>
 }

app/src/main/java/com/zaneschepke/wireguardautotunnel/receiver/BootReceiver.kt

@@ -23,7 +23,7 @@ class BootReceiver : BroadcastReceiver() {
             CoroutineScope(Dispatchers.IO).launch {
                 try {
                     val settings = settingsRepo.getAll()
-                    if (!settings.isNullOrEmpty()) {
+                    if (settings.isNotEmpty()) {
                         val setting = settings.first()
                         if (setting.isAutoTunnelEnabled && setting.defaultTunnel != null) {
                             ServiceManager.startWatcherService(context, setting.defaultTunnel!!)

app/src/main/java/com/zaneschepke/wireguardautotunnel/repository/DatabaseListConverters.kt

@@ -5,7 +5,7 @@ import androidx.room.TypeConverter
 class DatabaseListConverters {
     @TypeConverter
     fun listToString(value: MutableList<String>): String {
-        return value.joinToString()
+        return value.joinToString(",")
     }
     @TypeConverter
     fun <T> stringToList(value: String): MutableList<String> {

app/src/main/java/com/zaneschepke/wireguardautotunnel/repository/model/Settings.kt

@@ -12,4 +12,5 @@ data class Settings(
     @ColumnInfo(name = "trusted_network_ssids") var trustedNetworkSSIDs : MutableList<String> = mutableListOf(),
     @ColumnInfo(name = "default_tunnel") var defaultTunnel : String? = null,
     @ColumnInfo(name = "is_always_on_vpn_enabled") var isAlwaysOnVpnEnabled : Boolean = false,
+    @ColumnInfo(name = "is_tunnel_on_ethernet_enabled") var isTunnelOnEthernetEnabled : Boolean = false,
 )

app/src/main/java/com/zaneschepke/wireguardautotunnel/service/foreground/WireGuardConnectivityWatcherService.kt

@@ -12,6 +12,7 @@ import com.zaneschepke.wireguardautotunnel.Constants
 import com.zaneschepke.wireguardautotunnel.R
 import com.zaneschepke.wireguardautotunnel.repository.SettingsDoa
 import com.zaneschepke.wireguardautotunnel.repository.model.Settings
+import com.zaneschepke.wireguardautotunnel.service.network.EthernetService
 import com.zaneschepke.wireguardautotunnel.service.network.MobileDataService
 import com.zaneschepke.wireguardautotunnel.service.network.NetworkService
 import com.zaneschepke.wireguardautotunnel.service.network.NetworkStatus
@@ -38,6 +39,9 @@ class WireGuardConnectivityWatcherService : ForegroundService() {
     @Inject
     lateinit var mobileDataService : NetworkService<MobileDataService>
 
+    @Inject
+    lateinit var ethernetService: NetworkService<EthernetService>
+
     @Inject
     lateinit var settingsRepo: SettingsDoa
 
@@ -48,6 +52,7 @@ class WireGuardConnectivityWatcherService : ForegroundService() {
     lateinit var vpnService : VpnService
 
     private var isWifiConnected = false;
+    private var isEthernetConnected = false;
     private var isMobileDataConnected = false;
     private var currentNetworkSSID = "";
 
@@ -142,6 +147,11 @@ class WireGuardConnectivityWatcherService : ForegroundService() {
                     watchForMobileDataConnectivityChanges()
                 }
             }
+            if(setting.isTunnelOnEthernetEnabled) {
+                launch {
+                    watchForEthernetConnectivityChanges()
+                }
+            }
             launch {
                 manageVpn()
             }
@@ -167,6 +177,25 @@ class WireGuardConnectivityWatcherService : ForegroundService() {
         }
     }
 
+    private suspend fun watchForEthernetConnectivityChanges() {
+        ethernetService.networkStatus.collect {
+            when (it) {
+                is NetworkStatus.Available -> {
+                    Timber.d("Gained Ethernet connection")
+                    isEthernetConnected = true
+                }
+                is NetworkStatus.CapabilitiesChanged -> {
+                    Timber.d("Ethernet capabilities changed")
+                    isEthernetConnected = true
+                }
+                is NetworkStatus.Unavailable -> {
+                    isEthernetConnected = false
+                    Timber.d("Lost Ethernet connection")
+                }
+            }
+        }
+    }
+
     private suspend fun watchForWifiConnectivityChanges() {
         wifiService.networkStatus.collect {
                 when (it) {
@@ -189,20 +218,23 @@ class WireGuardConnectivityWatcherService : ForegroundService() {
 
     private suspend fun manageVpn() {
         while(true) {
-            if(setting.isTunnelOnMobileDataEnabled &&
+            if(isEthernetConnected && setting.isTunnelOnEthernetEnabled && vpnService.getState() == Tunnel.State.DOWN) {
+                ServiceManager.startVpnService(this, tunnelConfig)
+            }
+            if(!isEthernetConnected && setting.isTunnelOnMobileDataEnabled &&
                 !isWifiConnected &&
                 isMobileDataConnected
                 && vpnService.getState() == Tunnel.State.DOWN) {
                 ServiceManager.startVpnService(this, tunnelConfig)
-            } else if(!setting.isTunnelOnMobileDataEnabled &&
+            } else if(!isEthernetConnected && !setting.isTunnelOnMobileDataEnabled &&
                 !isWifiConnected &&
                 vpnService.getState() == Tunnel.State.UP) {
                 ServiceManager.stopVpnService(this)
-            } else if(isWifiConnected &&
+            } else if(!isEthernetConnected && isWifiConnected &&
                 !setting.trustedNetworkSSIDs.contains(currentNetworkSSID) &&
                 (vpnService.getState() != Tunnel.State.UP)) {
                 ServiceManager.startVpnService(this, tunnelConfig)
-            } else if((isWifiConnected &&
+            } else if(!isEthernetConnected && (isWifiConnected &&
                         setting.trustedNetworkSSIDs.contains(currentNetworkSSID)) &&
                 (vpnService.getState() == Tunnel.State.UP)) {
                 ServiceManager.stopVpnService(this)

app/src/main/java/com/zaneschepke/wireguardautotunnel/service/network/EthernetService.kt

@@ -0,0 +1,10 @@
+package com.zaneschepke.wireguardautotunnel.service.network
+
+import android.content.Context
+import android.net.NetworkCapabilities
+import dagger.hilt.android.qualifiers.ApplicationContext
+import javax.inject.Inject
+
+class EthernetService @Inject constructor(@ApplicationContext context: Context) :
+    BaseNetworkService<EthernetService>(context, NetworkCapabilities.TRANSPORT_ETHERNET) {
+}

app/src/main/java/com/zaneschepke/wireguardautotunnel/service/shortcut/ShortcutsManager.kt

@@ -46,9 +46,11 @@ object ShortcutsManager {
         )
     }
 
-    fun removeTunnelShortcuts(context : Context, tunnelConfig : TunnelConfig) {
-        ShortcutManagerCompat.removeDynamicShortcuts(context, listOf(tunnelConfig.id.toString() + APPEND_ON,
-            tunnelConfig.id.toString() + APPEND_OFF ))
+    fun removeTunnelShortcuts(context : Context, tunnelConfig : TunnelConfig?) {
+        if(tunnelConfig != null) {
+            ShortcutManagerCompat.removeDynamicShortcuts(context, listOf(tunnelConfig.id.toString() + APPEND_ON,
+                tunnelConfig.id.toString() + APPEND_OFF ))
+        }
     }
 
     private fun createTunnelOnIntent(context: Context, extras : Map<String,String>) : Intent {

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/CaptureActivityPortrait.java

@@ -1,6 +0,0 @@
-package com.zaneschepke.wireguardautotunnel.ui;
-
-import com.journeyapps.barcodescanner.CaptureActivity;
-
-public class CaptureActivityPortrait extends CaptureActivity {
-}

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/CaptureActivityPortrait.kt

@@ -0,0 +1,5 @@
+package com.zaneschepke.wireguardautotunnel.ui
+
+import com.journeyapps.barcodescanner.CaptureActivity
+
+class CaptureActivityPortrait : CaptureActivity()

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/MainActivity.kt

@@ -44,6 +44,7 @@ import com.zaneschepke.wireguardautotunnel.ui.screens.settings.SettingsScreen
 import com.zaneschepke.wireguardautotunnel.ui.screens.support.SupportScreen
 import com.zaneschepke.wireguardautotunnel.ui.theme.TransparentSystemBars
 import com.zaneschepke.wireguardautotunnel.ui.theme.WireguardAutoTunnelTheme
+import com.zaneschepke.wireguardautotunnel.util.WgTunnelException
 import dagger.hilt.android.AndroidEntryPoint
 import timber.log.Timber
 import java.lang.IllegalStateException
@@ -101,7 +102,7 @@ class MainActivity : AppCompatActivity() {
                                     }
                                     false
                                 } else -> {
-                                   false;
+                                   false
                                 }
                             }
                         } else {
@@ -131,8 +132,8 @@ class MainActivity : AppCompatActivity() {
                                 val intentSettings =
                                     Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS)
                                 intentSettings.data =
-                                    Uri.fromParts("package", this.packageName, null)
-                                startActivity(intentSettings);
+                                    Uri.fromParts(Constants.URI_PACKAGE_SCHEME, this.packageName, null)
+                                startActivity(intentSettings)
                             },
                             message = getString(R.string.notification_permission_required),
                             getString(R.string.open_settings)
@@ -190,10 +191,19 @@ class MainActivity : AppCompatActivity() {
                         }) { SupportScreen(padding = padding, focusRequester) }
                         composable("${Routes.Config.name}/{id}", enterTransition = {
                             fadeIn(animationSpec = tween(Constants.FADE_IN_ANIMATION_DURATION))
-                        }) { ConfigScreen(padding = padding, navController = navController, id = it.arguments?.getString("id"), focusRequester = focusRequester)}
+                        }) {
+                            val id = it.arguments?.getString("id")
+                            if(!id.isNullOrBlank()) {
+                                ConfigScreen(padding = padding, navController = navController, id = id, focusRequester = focusRequester)}
+                            }
                         composable("${Routes.Detail.name}/{id}", enterTransition = {
                             fadeIn(animationSpec = tween(Constants.FADE_IN_ANIMATION_DURATION))
-                        }) { DetailScreen(padding = padding, id = it.arguments?.getString("id")) }
+                        }) {
+                            val id = it.arguments?.getString("id")
+                            if(!id.isNullOrBlank()) {
+                                DetailScreen(padding = padding, id = id)
+                            }
+                        }
                     }
                 }
             }

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/config/ConfigScreen.kt

@@ -24,6 +24,7 @@ import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
+import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.ExperimentalComposeUiApi
@@ -53,7 +54,7 @@ fun ConfigScreen(
     padding: PaddingValues,
     focusRequester: FocusRequester,
     navController: NavController,
-    id : String?
+    id : String
 ) {
 
     val context = LocalContext.current
@@ -67,11 +68,12 @@ fun ConfigScreen(
     val checkedPackages by viewModel.checkedPackages.collectAsStateWithLifecycle()
     val include by viewModel.include.collectAsStateWithLifecycle()
     val allApplications by viewModel.allApplications.collectAsStateWithLifecycle()
+    val sortedPackages = remember(packages) {
+        packages.sortedBy { viewModel.getPackageLabel(it) }
+    }
 
     LaunchedEffect(Unit) {
-        viewModel.getTunnelById(id)
-        viewModel.emitQueriedPackages("")
-        viewModel.emitCurrentPackageConfigurations(id)
+        viewModel.emitScreenData(id)
     }
 
     if(tunnel != null) {
@@ -174,7 +176,7 @@ fun ConfigScreen(
                             SearchBar(viewModel::emitQueriedPackages);
                         }
                     }
-                    items(packages) { pack ->
+                    items(sortedPackages, key = { it.packageName }) { pack ->
                         Row(
                             verticalAlignment = Alignment.CenterVertically,
                             horizontalArrangement = Arrangement.SpaceBetween
@@ -200,8 +202,7 @@ fun ConfigScreen(
                                     )
                                 }
                                 Text(
-                                    pack.applicationInfo.loadLabel(context.packageManager)
-                                        .toString(), modifier = Modifier.padding(5.dp)
+                                    viewModel.getPackageLabel(pack), modifier = Modifier.padding(5.dp)
                                 )
                             }
                             Checkbox(

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/config/ConfigViewModel.kt

@@ -9,11 +9,14 @@ import androidx.compose.runtime.mutableStateListOf
 import androidx.compose.runtime.toMutableStateList
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
+import com.wireguard.config.Config
 import com.zaneschepke.wireguardautotunnel.repository.SettingsDoa
 import com.zaneschepke.wireguardautotunnel.repository.TunnelConfigDao
 import com.zaneschepke.wireguardautotunnel.service.shortcut.ShortcutsManager
 import com.zaneschepke.wireguardautotunnel.repository.model.TunnelConfig
+import com.zaneschepke.wireguardautotunnel.util.WgTunnelException
 import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.launch
@@ -41,24 +44,37 @@ class ConfigViewModel @Inject constructor(private val application : Application,
     private val _allApplications = MutableStateFlow(true)
     val allApplications get() = _allApplications.asStateFlow()
 
-    suspend fun getTunnelById(id : String?) : TunnelConfig? {
-        return try {
-            if(id != null) {
-                val config = tunnelRepo.getById(id.toLong())
-                if (config != null) {
-                    _tunnel.emit(config)
-                    _tunnelName.emit(config.name)
+    fun emitScreenData(id : String) {
+        viewModelScope.launch(Dispatchers.IO) {
+            val tunnelConfig = getTunnelConfigById(id);
+            emitTunnelConfig(tunnelConfig);
+            emitTunnelConfigName(tunnelConfig?.name)
+            emitQueriedPackages("")
+            emitCurrentPackageConfigurations(id)
+        }
+    }
 
-                }
-                return config
-            }
-            return null
+    private suspend fun getTunnelConfigById(id : String) : TunnelConfig? {
+        return try {
+            tunnelRepo.getById(id.toLong())
         } catch (e : Exception) {
             Timber.e(e.message)
             null
         }
     }
 
+    private suspend fun emitTunnelConfig(tunnelConfig: TunnelConfig?) {
+        if(tunnelConfig != null) {
+            _tunnel.emit(tunnelConfig)
+        }
+    }
+
+    private  suspend fun emitTunnelConfigName(name : String?) {
+        if(name != null) {
+            _tunnelName.emit(name)
+        }
+    }
+
     fun onTunnelNameChange(name : String) {
         _tunnelName.value = name
     }
@@ -78,35 +94,71 @@ class ConfigViewModel @Inject constructor(private val application : Application,
         _checkedPackages.value.remove(packageName)
     }
 
-    suspend fun emitCurrentPackageConfigurations(id : String?) {
-        val tunnelConfig = getTunnelById(id)
-        if(tunnelConfig != null) {
-            val config = TunnelConfig.configFromQuick(tunnelConfig.wgQuick)
-            val excludedApps = config.`interface`.excludedApplications
-            val includedApps = config.`interface`.includedApplications
-            if(excludedApps.isNullOrEmpty() && includedApps.isNullOrEmpty()) {
-                _allApplications.emit(true)
-                return
+    private suspend fun emitSplitTunnelConfiguration(config : Config) {
+        val excludedApps = config.`interface`.excludedApplications
+        val includedApps = config.`interface`.includedApplications
+        if (excludedApps.isNotEmpty() || includedApps.isNotEmpty()) {
+            emitTunnelAllApplicationsDisabled()
+            determineAppInclusionState(excludedApps, includedApps)
+        } else {
+            emitTunnelAllApplicationsEnabled()
+        }
+    }
+
+    private suspend fun determineAppInclusionState(excludedApps : Set<String>, includedApps : Set<String>) {
+        if (excludedApps.isEmpty()) {
+            emitIncludedAppsExist()
+            emitCheckedApps(includedApps)
+        } else {
+            emitExcludedAppsExist()
+            emitCheckedApps(excludedApps)
+        }
+    }
+
+    private suspend fun emitIncludedAppsExist() {
+        _include.emit(true)
+    }
+
+    private suspend fun emitExcludedAppsExist() {
+        _include.emit(false)
+    }
+
+    private suspend fun emitCheckedApps(apps : Set<String>) {
+        _checkedPackages.emit(apps.toMutableStateList())
+    }
+
+    private suspend fun emitTunnelAllApplicationsEnabled() {
+        _allApplications.emit(true)
+    }
+
+    private suspend fun emitTunnelAllApplicationsDisabled() {
+        _allApplications.emit(false)
+    }
+
+    private fun emitCurrentPackageConfigurations(id : String) {
+        viewModelScope.launch(Dispatchers.IO) {
+            val tunnelConfig = getTunnelConfigById(id)
+            if (tunnelConfig != null) {
+                val config = TunnelConfig.configFromQuick(tunnelConfig.wgQuick)
+                emitSplitTunnelConfiguration(config)
             }
-            if(excludedApps.isEmpty()) {
-                _include.emit(true)
-                _checkedPackages.emit(includedApps.toMutableStateList())
-            } else {
-                _include.emit(false)
-                _checkedPackages.emit(excludedApps.toMutableStateList())
-            }
-            _allApplications.emit(false)
         }
     }
 
     fun emitQueriedPackages(query : String) {
-        viewModelScope.launch {
-            _packages.emit(getAllInternetCapablePackages().filter {
-                it.packageName.contains(query)
-            })
+        viewModelScope.launch(Dispatchers.IO) {
+            val packages = getAllInternetCapablePackages().filter {
+                getPackageLabel(it).lowercase().contains(query.lowercase())
+            }
+            _packages.emit(packages)
         }
     }
 
+    fun getPackageLabel(packageInfo : PackageInfo) : String {
+        return packageInfo.applicationInfo.loadLabel(application.packageManager).toString()
+    }
+
+
     private fun getAllInternetCapablePackages() : List<PackageInfo> {
         return getPackagesHoldingPermissions(arrayOf(Manifest.permission.INTERNET))
     }
@@ -119,39 +171,77 @@ class ConfigViewModel @Inject constructor(private val application : Application,
         }
     }
 
-    suspend fun onSaveAllChanges() {
-        if(_tunnel.value != null) {
-            ShortcutsManager.removeTunnelShortcuts(application, _tunnel.value!!)
+    private fun removeTunnelShortcuts(tunnelConfig: TunnelConfig?) {
+        if(tunnelConfig != null) {
+            ShortcutsManager.removeTunnelShortcuts(application, tunnelConfig)
         }
+
+    }
+
+    private fun isAllApplicationsEnabled() : Boolean {
+        return _allApplications.value
+    }
+
+    private fun isIncludeApplicationsEnabled() : Boolean {
+        return _include.value
+    }
+
+    private fun updateQuickStringWithSelectedPackages() : String {
         var wgQuick = _tunnel.value?.wgQuick
         if(wgQuick != null) {
-            wgQuick = if(_include.value) {
+            wgQuick = if(isAllApplicationsEnabled()) {
+                TunnelConfig.clearAllApplicationsFromConfig(wgQuick)
+            } else if(isIncludeApplicationsEnabled()) {
                 TunnelConfig.setIncludedApplicationsOnQuick(_checkedPackages.value, wgQuick)
             } else {
                 TunnelConfig.setExcludedApplicationsOnQuick(_checkedPackages.value, wgQuick)
             }
-            if(_allApplications.value) {
-                wgQuick = TunnelConfig.clearAllApplicationsFromConfig(wgQuick)
-            }
-            _tunnel.value?.copy(
-                name = _tunnelName.value,
-                wgQuick = wgQuick
-            )?.let {
-                tunnelRepo.save(it)
-                ShortcutsManager.createTunnelShortcuts(application, it)
-                val settings = settingsRepo.getAll()
-                if(settings.isEmpty()) {
-                    return
-                }
-                val setting = settings[0]
-                if(setting.defaultTunnel != null) {
-                    if(it.id == TunnelConfig.from(setting.defaultTunnel!!).id) {
-                        settingsRepo.save(setting.copy(
-                            defaultTunnel = it.toString()
-                        ))
-                    }
+        } else {
+            throw WgTunnelException("Wg quick string is null")
+        }
+        return wgQuick;
+    }
+
+    private suspend fun saveConfig(tunnelConfig: TunnelConfig) {
+        tunnelRepo.save(tunnelConfig)
+    }
+    private suspend fun updateTunnelConfig(tunnelConfig: TunnelConfig?) {
+        if(tunnelConfig != null) {
+            saveConfig(tunnelConfig)
+            addTunnelShortcuts(tunnelConfig)
+            updateSettingsDefaultTunnel(tunnelConfig)
+        }
+    }
+
+    private suspend fun updateSettingsDefaultTunnel(tunnelConfig: TunnelConfig) {
+        val settings = settingsRepo.getAll()
+        if(settings.isNotEmpty()) {
+            val setting = settings[0]
+            if(setting.defaultTunnel != null) {
+                if(tunnelConfig.id == TunnelConfig.from(setting.defaultTunnel!!).id) {
+                    settingsRepo.save(setting.copy(
+                        defaultTunnel = tunnelConfig.toString()
+                    ))
                 }
             }
         }
     }
+
+    private fun addTunnelShortcuts(tunnelConfig: TunnelConfig) {
+        ShortcutsManager.createTunnelShortcuts(application, tunnelConfig)
+    }
+
+    suspend fun onSaveAllChanges() {
+        try {
+            removeTunnelShortcuts(_tunnel.value)
+            val wgQuick = updateQuickStringWithSelectedPackages()
+            val tunnelConfig = _tunnel.value?.copy(
+                name = _tunnelName.value,
+                wgQuick = wgQuick
+            )
+            updateTunnelConfig(tunnelConfig)
+        } catch (e : Exception) {
+            Timber.e(e.message)
+        }
+    }
 }

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/detail/DetailScreen.kt

@@ -36,7 +36,7 @@ import java.time.Instant
 fun DetailScreen(
     viewModel: DetailViewModel = hiltViewModel(),
     padding: PaddingValues,
-    id : String?
+    id : String
 ) {
 
     val clipboardManager: ClipboardManager = LocalClipboardManager.current
@@ -47,15 +47,17 @@ fun DetailScreen(
 
 
     LaunchedEffect(Unit) {
-        viewModel.getTunnelById(id)
+        viewModel.emitConfig(id)
     }
 
-    if(tunnel != null) {
+    if(null != tunnel) {
         val interfaceKey = tunnel?.`interface`?.keyPair?.publicKey?.toBase64().toString()
         val addresses = tunnel?.`interface`?.addresses!!.joinToString()
         val dnsServers = tunnel?.`interface`?.dnsServers!!.joinToString()
         val optionalMtu = tunnel?.`interface`?.mtu
-        val mtu = if(optionalMtu?.isPresent == true) optionalMtu.get().toString() else "None"
+        val mtu = if(optionalMtu?.isPresent == true) optionalMtu.get().toString() else stringResource(
+            id = R.string.none
+        )
         Column(
             horizontalAlignment = Alignment.Start,
             verticalArrangement = Arrangement.Top,
@@ -97,7 +99,9 @@ fun DetailScreen(
                     tunnel?.peers?.forEach{
                         val peerKey = it.publicKey.toBase64().toString()
                         val allowedIps = it.allowedIps.joinToString()
-                        val endpoint = if(it.endpoint.isPresent) it.endpoint.get().toString() else "None"
+                        val endpoint = if(it.endpoint.isPresent) it.endpoint.get().toString() else stringResource(
+                            id = R.string.none
+                        )
                         Text(stringResource(R.string.peer), fontWeight = FontWeight.Bold, fontSize = 20.sp)
                         Text(stringResource(R.string.public_key), fontStyle = FontStyle.Italic)
                         Text(text = peerKey,  modifier = Modifier.clickable {
@@ -123,7 +127,7 @@ fun DetailScreen(
                                 val handshakeEpoch = lastHandshake[it.publicKey]
                                 if(handshakeEpoch != null) {
                                     if(handshakeEpoch == 0L) {
-                                        Text("Never")
+                                        Text(stringResource(id = R.string.never))
                                     } else {
                                         val time = Instant.ofEpochMilli(handshakeEpoch)
                                         Text("${Duration.between(time, Instant.now()).seconds} seconds ago")

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/detail/DetailViewModel.kt

@@ -1,45 +1,45 @@
 package com.zaneschepke.wireguardautotunnel.ui.screens.detail
 
 import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
 import com.wireguard.config.Config
 import com.zaneschepke.wireguardautotunnel.repository.TunnelConfigDao
 import com.zaneschepke.wireguardautotunnel.repository.model.TunnelConfig
 import com.zaneschepke.wireguardautotunnel.service.tunnel.VpnService
 import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.launch
 import timber.log.Timber
 import javax.inject.Inject
 
 @HiltViewModel
 class DetailViewModel @Inject constructor(private val tunnelRepo : TunnelConfigDao, private val vpnService : VpnService
-
 ) : ViewModel() {
 
     private val _tunnel = MutableStateFlow<Config?>(null)
     val tunnel get() = _tunnel.asStateFlow()
 
-    private val _tunnelName = MutableStateFlow<String>("")
+    private val _tunnelName = MutableStateFlow("")
     val tunnelName = _tunnelName.asStateFlow()
     val tunnelStats get() = vpnService.statistics
     val lastHandshake get() = vpnService.lastHandshake
 
-    private var config : TunnelConfig? = null
-
-    suspend fun getTunnelById(id : String?) : TunnelConfig? {
+    private suspend fun getTunnelConfigById(id: String): TunnelConfig? {
         return try {
-            if(id != null) {
-               config = tunnelRepo.getById(id.toLong())
-                if (config != null) {
-                    _tunnel.emit(TunnelConfig.configFromQuick(config!!.wgQuick))
-                    _tunnelName.emit(config!!.name)
-                }
-                return config
-            }
-            return null
-        } catch (e : Exception) {
+            tunnelRepo.getById(id.toLong())
+        } catch (e: Exception) {
             Timber.e(e.message)
             null
         }
     }
+    fun emitConfig(id: String) {
+        viewModelScope.launch(Dispatchers.IO) {
+            val tunnelConfig = getTunnelConfigById(id)
+            if(tunnelConfig != null) {
+                _tunnel.emit(TunnelConfig.configFromQuick(tunnelConfig.wgQuick))
+            }
+        }
+    }
 }

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/main/MainScreen.kt

@@ -73,11 +73,12 @@ import androidx.navigation.NavController
 import com.journeyapps.barcodescanner.ScanContract
 import com.journeyapps.barcodescanner.ScanOptions
 import com.wireguard.android.backend.Tunnel
-import com.zaneschepke.wireguardautotunnel.ui.CaptureActivityPortrait
+import com.zaneschepke.wireguardautotunnel.Constants
 import com.zaneschepke.wireguardautotunnel.R
 import com.zaneschepke.wireguardautotunnel.WireGuardAutoTunnel
 import com.zaneschepke.wireguardautotunnel.repository.model.TunnelConfig
 import com.zaneschepke.wireguardautotunnel.service.tunnel.HandshakeStatus
+import com.zaneschepke.wireguardautotunnel.ui.CaptureActivityPortrait
 import com.zaneschepke.wireguardautotunnel.ui.Routes
 import com.zaneschepke.wireguardautotunnel.ui.common.RowListItem
 import com.zaneschepke.wireguardautotunnel.ui.theme.brickRed
@@ -146,7 +147,13 @@ fun MainScreen(
 
     val scanLauncher = rememberLauncherForActivityResult(
         contract = ScanContract(),
-        onResult = { result -> viewModel.onTunnelQrResult(result.contents) }
+        onResult = {
+            try {
+                viewModel.onTunnelQrResult(it.contents)
+            } catch (e : Exception) {
+                viewModel.showSnackBarMessage(context.getString(R.string.qr_result_failed))
+            }
+        }
     )
 
     Scaffold(
@@ -205,9 +212,13 @@ fun MainScreen(
                             showBottomSheet = false
                             val fileSelectionIntent = Intent(Intent.ACTION_OPEN_DOCUMENT).apply {
                                 addCategory(Intent.CATEGORY_OPENABLE)
-                                type = "*/*"
+                                type = Constants.ALLOWED_FILE_TYPES
+                            }
+                            if (fileSelectionIntent.resolveActivity(context.packageManager) != null) {
+                                pickFileLauncher.launch(fileSelectionIntent)
+                            } else {
+                                viewModel.showSnackBarMessage(context.getString(R.string.no_file_app))
                             }
-                            pickFileLauncher.launch(fileSelectionIntent)
                         }
                         .padding(10.dp)
                 ) {
@@ -232,7 +243,7 @@ fun MainScreen(
                             scanOptions.setOrientationLocked(true)
                             scanOptions.setPrompt(context.getString(R.string.scanning_qr))
                             scanOptions.setBeepEnabled(false)
-                            scanOptions.captureActivity = CaptureActivityPortrait().javaClass
+                            scanOptions.captureActivity = CaptureActivityPortrait::class.java
                             scanLauncher.launch(scanOptions)
                         }
                     }
@@ -264,7 +275,7 @@ fun MainScreen(
                     .nestedScroll(nestedScrollConnection),
             ) {
                 items(tunnels, key = { tunnel -> tunnel.id }) {tunnel ->
-                    val focusRequester = FocusRequester();
+                    val focusRequester = remember { FocusRequester() }
                     RowListItem(leadingIcon = Icons.Rounded.Circle,
                         leadingIconColor = if (tunnelName == tunnel.name) when (handshakeStatus) {
                             HandshakeStatus.HEALTHY -> mint
@@ -281,7 +292,7 @@ fun MainScreen(
                                 return@RowListItem
                             }
                             haptic.performHapticFeedback(HapticFeedbackType.LongPress)
-                            selectedTunnel = tunnel;
+                            selectedTunnel = tunnel
                         },
                         onClick = {
                             if (!WireGuardAutoTunnel.isRunningOnAndroidTv(context)) {

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/main/MainViewModel.kt

@@ -1,8 +1,8 @@
 package com.zaneschepke.wireguardautotunnel.ui.screens.main
 
-import android.annotation.SuppressLint
 import android.app.Application
 import android.content.Context
+import android.database.Cursor
 import android.net.Uri
 import android.provider.OpenableColumns
 import androidx.lifecycle.ViewModel
@@ -18,18 +18,21 @@ import com.zaneschepke.wireguardautotunnel.repository.model.TunnelConfig
 import com.zaneschepke.wireguardautotunnel.service.foreground.ServiceManager
 import com.zaneschepke.wireguardautotunnel.service.foreground.ServiceState
 import com.zaneschepke.wireguardautotunnel.service.foreground.WireGuardConnectivityWatcherService
+import com.zaneschepke.wireguardautotunnel.service.foreground.WireGuardTunnelService
 import com.zaneschepke.wireguardautotunnel.service.shortcut.ShortcutsManager
 import com.zaneschepke.wireguardautotunnel.service.tunnel.VpnService
 import com.zaneschepke.wireguardautotunnel.ui.ViewState
 import com.zaneschepke.wireguardautotunnel.util.NumberUtils
+import com.zaneschepke.wireguardautotunnel.util.WgTunnelException
 import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.flow.filter
 import kotlinx.coroutines.launch
-import timber.log.Timber
+import java.io.InputStream
 import javax.inject.Inject
 
 
@@ -86,89 +89,164 @@ class MainViewModel @Inject constructor(private val application : Application,
         }
     }
 
-    fun onTunnelStart(tunnelConfig : TunnelConfig) = viewModelScope.launch {
+    fun onTunnelStart(tunnelConfig : TunnelConfig) {
+        viewModelScope.launch {
+            stopActiveTunnel()
+            startTunnel(tunnelConfig)
+        }
+    }
+
+    private fun startTunnel(tunnelConfig: TunnelConfig) {
         ServiceManager.startVpnService(application.applicationContext, tunnelConfig.toString())
     }
 
+    private suspend fun stopActiveTunnel() {
+        if(ServiceManager.getServiceState(application.applicationContext,
+                WireGuardTunnelService::class.java, ) == ServiceState.STARTED) {
+            onTunnelStop()
+            delay(Constants.TOGGLE_TUNNEL_DELAY)
+        }
+    }
+
     fun onTunnelStop() {
         ServiceManager.stopVpnService(application.applicationContext)
     }
 
+    private fun validateConfigString(config : String) {
+        if(!config.contains(application.getString(R.string.config_validation))) {
+            throw WgTunnelException(application.getString(R.string.config_validation))
+        }
+    }
+
     fun onTunnelQrResult(result : String) {
         viewModelScope.launch(Dispatchers.IO) {
-        if(result.contains(application.resources.getString(R.string.config_validation))) {
-            val tunnelConfig =
-                TunnelConfig(name = NumberUtils.generateRandomTunnelName(), wgQuick = result)
-                saveTunnel(tunnelConfig)
-            } else {
-                showSnackBarMessage(application.resources.getString(R.string.barcode_error))
+            try {
+                validateConfigString(result)
+                val tunnelConfig = TunnelConfig(name = NumberUtils.generateRandomTunnelName(), wgQuick = result)
+                addTunnel(tunnelConfig)
+            } catch (e : WgTunnelException) {
+                showSnackBarMessage(e.message ?: application.getString(R.string.unknown_error_message))
             }
         }
     }
 
-    fun onTunnelFileSelected(uri : Uri) {
-        viewModelScope.launch(Dispatchers.IO) {
-            try {
-                val fileName = getFileName(application.applicationContext, uri)
-                val extension = getFileExtensionFromFileName(fileName)
-                if (extension != ".conf") {
-                    launch {
-                        showSnackBarMessage(application.resources.getString(R.string.file_extension_message))
-                    }
-                    return@launch
-                }
-                val stream = application.applicationContext.contentResolver.openInputStream(uri)
-                stream ?: return@launch
-                val bufferReader = stream.bufferedReader(charset = Charsets.UTF_8)
-                val config = Config.parse(bufferReader)
-                val tunnelName = getNameFromFileName(fileName)
-                saveTunnel(TunnelConfig(name = tunnelName, wgQuick = config.toWgQuickString()))
-                stream.close()
-            } catch (_: BadConfigException) {
-                launch {
-                    showSnackBarMessage(application.applicationContext.getString(R.string.bad_config))
-                }
-            }
+    private fun validateFileExtension(fileName : String) {
+        val extension = getFileExtensionFromFileName(fileName)
+        if(extension != Constants.VALID_FILE_EXTENSION) {
+            throw WgTunnelException(application.getString(R.string.file_extension_message))
         }
     }
 
+    private fun saveTunnelConfigFromStream(stream : InputStream, fileName : String) {
+        viewModelScope.launch(Dispatchers.IO) {
+            val bufferReader = stream.bufferedReader(charset = Charsets.UTF_8)
+            val config = Config.parse(bufferReader)
+            val tunnelName = getNameFromFileName(fileName)
+            addTunnel(TunnelConfig(name = tunnelName, wgQuick = config.toWgQuickString()))
+            stream.close()
+        }
+    }
+
+    private fun getInputStreamFromUri(uri: Uri): InputStream {
+        return application.applicationContext.contentResolver.openInputStream(uri)
+            ?: throw WgTunnelException(application.getString(R.string.stream_failed))
+    }
+
+    fun onTunnelFileSelected(uri : Uri) {
+        try {
+            val fileName = getFileName(application.applicationContext, uri)
+            validateFileExtension(fileName)
+            val stream = getInputStreamFromUri(uri)
+            saveTunnelConfigFromStream(stream, fileName)
+        } catch (e : Exception) {
+            showExceptionMessage(e)
+        }
+    }
+
+    private fun showExceptionMessage(e : Exception) {
+        when(e) {
+            is BadConfigException -> {
+                showSnackBarMessage(application.getString(R.string.bad_config))
+            }
+            is WgTunnelException -> {
+                showSnackBarMessage(e.message ?: application.getString(R.string.unknown_error_message))
+            }
+            else -> showSnackBarMessage(application.getString(R.string.unknown_error_message))
+        }
+    }
+
+    private  suspend fun addTunnel(tunnelConfig: TunnelConfig) {
+        saveTunnel(tunnelConfig)
+        createTunnelAppShortcuts(tunnelConfig)
+    }
+
     private suspend fun saveTunnel(tunnelConfig : TunnelConfig) {
         tunnelRepo.save(tunnelConfig)
+    }
+
+    private fun createTunnelAppShortcuts(tunnelConfig: TunnelConfig) {
         ShortcutsManager.createTunnelShortcuts(application.applicationContext, tunnelConfig)
     }
 
-    @SuppressLint("Range")
-    private fun getFileName(context: Context, uri: Uri): String {
-        if (uri.scheme == "content") {
-            val cursor = try {
-                context.contentResolver.query(uri, null, null, null, null)
-            } catch (e : Exception) {
-                Timber.d("Exception getting config name")
-                null
-            }
-            cursor ?: return NumberUtils.generateRandomTunnelName()
+    private fun getFileNameByCursor(context: Context, uri: Uri) : String {
+        val cursor = context.contentResolver.query(uri, null, null, null, null)
+        if(cursor != null) {
             cursor.use {
-                if(cursor.moveToFirst()) {
-                    return cursor.getString(cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME))
-                }
+                return getDisplayNameByCursor(it)
             }
+        } else {
+            throw WgTunnelException("Failed to initialize cursor")
         }
-        return NumberUtils.generateRandomTunnelName()
     }
 
-    suspend fun showSnackBarMessage(message : String) {
-        _viewState.emit(_viewState.value.copy(
-            showSnackbarMessage = true,
-            snackbarMessage = message,
-            snackbarActionText = "Okay",
-            onSnackbarActionClick = {
-                viewModelScope.launch {
-                    dismissSnackBar()
+    private fun getDisplayNameColumnIndex(cursor: Cursor) : Int {
+        val columnIndex = cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME)
+        if(columnIndex == -1) {
+            throw WgTunnelException("Cursor out of bounds")
+        }
+        return columnIndex
+    }
+
+    private fun getDisplayNameByCursor(cursor: Cursor) : String {
+        if(cursor.moveToFirst()) {
+            val index = getDisplayNameColumnIndex(cursor)
+            return cursor.getString(index)
+        } else {
+            throw WgTunnelException("Cursor failed to move to first")
+        }
+    }
+
+    private fun validateUriContentScheme(uri : Uri) {
+        if (uri.scheme != Constants.URI_CONTENT_SCHEME) {
+            throw WgTunnelException(application.getString(R.string.file_extension_message))
+        }
+    }
+
+
+    private fun getFileName(context: Context, uri: Uri): String {
+        validateUriContentScheme(uri)
+        return try {
+            getFileNameByCursor(context, uri)
+        } catch (_: Exception) {
+            NumberUtils.generateRandomTunnelName()
+        }
+    }
+
+    fun showSnackBarMessage(message : String) {
+        CoroutineScope(Dispatchers.IO).launch {
+            _viewState.emit(_viewState.value.copy(
+                showSnackbarMessage = true,
+                snackbarMessage = message,
+                snackbarActionText = application.getString(R.string.okay),
+                onSnackbarActionClick = {
+                    viewModelScope.launch {
+                        dismissSnackBar()
+                    }
                 }
-            }
-        ))
-        delay(Constants.SNACKBAR_DELAY)
-        dismissSnackBar()
+            ))
+            delay(Constants.SNACKBAR_DELAY)
+            dismissSnackBar()
+        }
     }
 
     private suspend fun dismissSnackBar() {

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/settings/SettingsScreen.kt

@@ -392,6 +392,24 @@ fun SettingsScreen(
                 }
             )
         }
+        Row(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(screenPadding),
+            verticalAlignment = Alignment.CenterVertically,
+            horizontalArrangement = Arrangement.SpaceBetween
+        ) {
+            Text("Tunnel on Ethernet")
+            Switch(
+                enabled = !settings.isAutoTunnelEnabled,
+                checked = settings.isTunnelOnEthernetEnabled,
+                onCheckedChange = {
+                    scope.launch {
+                        viewModel.onToggleTunnelOnEthernet()
+                    }
+                }
+            )
+        }
         Row(
             modifier = Modifier
                 .fillMaxWidth()

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/settings/SettingsViewModel.kt

@@ -122,6 +122,18 @@ class SettingsViewModel @Inject constructor(private val application : Applicatio
             showSnackBarMessage(application.getString(R.string.select_tunnel_message))
         }
     }
+
+    suspend fun onToggleTunnelOnEthernet() {
+        if(_settings.value.defaultTunnel != null) {
+            _settings.emit(
+                _settings.value.copy(isTunnelOnEthernetEnabled = !_settings.value.isTunnelOnEthernetEnabled)
+            )
+            settingsRepo.save(_settings.value)
+        } else {
+            showSnackBarMessage(application.getString(R.string.select_tunnel_message))
+        }
+    }
+
     fun checkLocationServicesEnabled() : Boolean {
         val locationManager =
             application.getSystemService(Context.LOCATION_SERVICE) as LocationManager

app/src/main/java/com/zaneschepke/wireguardautotunnel/util/WgTunnelException.kt

@@ -0,0 +1,3 @@
+package com.zaneschepke.wireguardautotunnel.util
+
+class WgTunnelException(message: String) : Exception(message)

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

@@ -38,7 +38,6 @@
     <string name="trusted_ssid_empty_description">Enter SSID</string>
     <string name="trusted_ssid_value_description">Submit SSID</string>
     <string name="config_validation">[Interface]</string>
-    <string name="invalid_qr">Invalid QR code.</string>
     <string name="add_from_file">Add tunnel from files</string>
     <string name="open_file">File Open</string>
     <string name="add_from_qr">Add tunnel from QR code</string>
@@ -62,7 +61,6 @@
     <string name="public_key">Public key</string>
     <string name="barcode_downloading">Waiting for the Barcode UI module to be downloaded.</string>
     <string name="barcode_downloading_message">Barcode module downloading. Try again.</string>
-    <string name="barcode_error">Invalid QR code. Try again.</string>
     <string name="addresses">Addresses</string>
     <string name="dns_servers">DNS servers</string>
     <string name="mtu">MTU</string>
@@ -92,5 +90,11 @@
     <string name="attempt_connection">Attempting connection..</string>
     <string name="vpn_starting">VPN Starting</string>
     <string name="db_name">wg-tunnel-db</string>
-    <string name="scanning_qr">Reading QR code</string>
+    <string name="scanning_qr">Scanning for QR</string>
+    <string name="qr_result_failed">QR scan failed</string>
+    <string name="none">None</string>
+    <string name="never">Never</string>
+    <string name="stream_failed">Failed to open file stream.</string>
+    <string name="unknown_error_message">An unknown error occurred.</string>
+    <string name="no_file_app">No file app installed.</string>
 </resources>