fix: discord link expired

This adds a tunnel configuration screen where user can configure split application tunneling and change tunnel name.

Additional QR code validation added to prevent adding of invalid QR codes to tunnels.

Minor UI quality-of-life changes.

Closes #3

README.md

@@ -28,6 +28,7 @@ This is an alternative Android Application for [WireGuard](https://www.wireguard
 
 <p float="center">
   <img label="Main" style="padding-right:25px" src="./asset/main_screen.png" width="200" />
+  <img label="Config" style="padding-left:25px" src="./asset/config_screen.png" width="200" />
   <img label="Settings" style="padding-left:25px" src="./asset/settings_screen.png" width="200" />
   <img label="Support" style="padding-left:25px" src="./asset/support_screen.png" width="200" />
 </p>
@@ -42,6 +43,7 @@ The inspiration for this app came from the inconvenience of constantly having to
 
 * Add tunnels via .conf file
 * Auto connect to VPN based on Wi-Fi SSID
+* Split tunneling by application
 * Configurable Trusted Network list 
 * Optional auto connect on mobile data
 * Automatic service restart after reboot

app/build.gradle.kts

@@ -15,9 +15,9 @@ android {
     namespace = "com.zaneschepke.wireguardautotunnel"
     compileSdk = 33
 
-    val versionMajor = 1
-    val versionMinor = 1
-    val versionPatch = 5
+    val versionMajor = 2
+    val versionMinor = 0
+    val versionPatch = 1
     val versionBuild = 0
 
     defaultConfig {
@@ -71,7 +71,7 @@ dependencies {
     implementation("androidx.compose.ui:ui")
     implementation("androidx.compose.ui:ui-graphics")
     implementation("androidx.compose.ui:ui-tooling-preview")
-    implementation("androidx.compose.material3:material3")
+    implementation("androidx.compose.material3:material3:1.1.1")
     implementation("androidx.appcompat:appcompat:1.6.1")
 
     testImplementation("junit:junit:4.13.2")
@@ -89,7 +89,7 @@ dependencies {
     implementation("com.jakewharton.timber:timber:5.0.1")
 
     // compose navigation
-    implementation("androidx.navigation:navigation-compose:2.5.3")
+    implementation("androidx.navigation:navigation-compose:2.6.0")
     implementation("androidx.hilt:hilt-navigation-compose:1.0.0")
 
     // hilt
@@ -101,6 +101,7 @@ dependencies {
     implementation("com.google.accompanist:accompanist-permissions:${rExtra.get("accompanistVersion")}")
     implementation("com.google.accompanist:accompanist-flowlayout:${rExtra.get("accompanistVersion")}")
     implementation("com.google.accompanist:accompanist-navigation-animation:${rExtra.get("accompanistVersion")}")
+    implementation("com.google.accompanist:accompanist-drawablepainter:${rExtra.get("accompanistVersion")}")
 
     //db
     implementation("io.objectbox:objectbox-kotlin:${rExtra.get("objectBoxVersion")}")
@@ -120,6 +121,11 @@ dependencies {
     implementation("com.google.firebase:firebase-crashlytics-ktx")
     implementation("com.google.firebase:firebase-analytics-ktx")
 
+    //barcode scanning
+    implementation("com.google.android.gms:play-services-code-scanner:16.0.0")
+
+
+
 }
 kapt {
     correctErrorTypes = true

app/src/main/AndroidManifest.xml

@@ -1,6 +1,7 @@
 <?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.INTERNET" />
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"
         android:maxSdkVersion="32" />
@@ -16,6 +17,11 @@
     <uses-permission android:name="android.permission.WAKE_LOCK" />
     <!--start service on boot permission-->
     <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
+    <queries>
+        <intent>
+            <action android:name="android.intent.action.MAIN" />
+        </intent>
+    </queries>
     <application
         android:allowBackup="true"
         android:name=".WireGuardAutoTunnel"
@@ -59,5 +65,8 @@
                 <action android:name="android.intent.action.BOOT_COMPLETED"/>
             </intent-filter>
         </receiver>
+        <meta-data
+            android:name="com.google.mlkit.vision.DEPENDENCIES"
+            android:value="barcode_ui"/>
     </application>
 </manifest>

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

@@ -0,0 +1,41 @@
+package com.zaneschepke.wireguardautotunnel.module
+
+import android.content.Context
+import com.google.mlkit.vision.barcode.common.Barcode
+import com.google.mlkit.vision.codescanner.GmsBarcodeScanner
+import com.google.mlkit.vision.codescanner.GmsBarcodeScannerOptions
+import com.google.mlkit.vision.codescanner.GmsBarcodeScanning
+import com.zaneschepke.wireguardautotunnel.service.barcode.CodeScanner
+import com.zaneschepke.wireguardautotunnel.service.barcode.QRScanner
+import dagger.Binds
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.android.components.ViewModelComponent
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.android.scopes.ViewModelScoped
+
+@Module
+@InstallIn(ViewModelComponent::class)
+class ScannerModule {
+
+    @ViewModelScoped
+    @Provides
+    fun provideBarCodeOptions() : GmsBarcodeScannerOptions {
+        return GmsBarcodeScannerOptions.Builder()
+            .setBarcodeFormats(Barcode.FORMAT_QR_CODE)
+            .build()
+    }
+
+    @ViewModelScoped
+    @Provides
+    fun provideBarCodeScanner(@ApplicationContext context: Context, options: GmsBarcodeScannerOptions) : GmsBarcodeScanner {
+        return GmsBarcodeScanning.getClient(context, options)
+    }
+
+    @ViewModelScoped
+    @Provides
+    fun provideQRScanner(gmsBarcodeScanner: GmsBarcodeScanner) : CodeScanner {
+        return QRScanner(gmsBarcodeScanner)
+    }
+}

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

@@ -1,5 +1,7 @@
 package com.zaneschepke.wireguardautotunnel.module
 
+import com.zaneschepke.wireguardautotunnel.service.barcode.CodeScanner
+import com.zaneschepke.wireguardautotunnel.service.barcode.QRScanner
 import com.zaneschepke.wireguardautotunnel.service.network.MobileDataService
 import com.zaneschepke.wireguardautotunnel.service.network.NetworkService
 import com.zaneschepke.wireguardautotunnel.service.network.WifiService
@@ -10,6 +12,7 @@ import dagger.Module
 import dagger.hilt.InstallIn
 import dagger.hilt.android.components.ServiceComponent
 import dagger.hilt.android.scopes.ServiceScoped
+import dagger.hilt.android.scopes.ViewModelScoped
 
 @Module
 @InstallIn(ServiceComponent::class)

app/src/main/java/com/zaneschepke/wireguardautotunnel/service/barcode/CodeScanner.kt

@@ -0,0 +1,7 @@
+package com.zaneschepke.wireguardautotunnel.service.barcode
+
+import kotlinx.coroutines.flow.Flow
+
+interface CodeScanner {
+    fun scan() : Flow<String?>
+}

app/src/main/java/com/zaneschepke/wireguardautotunnel/service/barcode/QRScanner.kt

@@ -0,0 +1,22 @@
+package com.zaneschepke.wireguardautotunnel.service.barcode
+
+import com.google.mlkit.vision.codescanner.GmsBarcodeScanner
+import kotlinx.coroutines.channels.awaitClose
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.callbackFlow
+import timber.log.Timber
+import javax.inject.Inject
+
+class QRScanner @Inject constructor(private val gmsBarcodeScanner: GmsBarcodeScanner) : CodeScanner {
+    override fun scan(): Flow<String?> {
+        return callbackFlow {
+            gmsBarcodeScanner.startScan().addOnSuccessListener {
+                trySend(it.rawValue)
+            }.addOnFailureListener {
+                Timber.e(it.message)
+            }
+            awaitClose {
+            }
+        }
+    }
+}

app/src/main/java/com/zaneschepke/wireguardautotunnel/service/tunnel/WireGuardTunnel.kt

@@ -24,7 +24,7 @@ class WireGuardTunnel @Inject constructor(private val backend : Backend) : VpnSe
     override val state get() = _state.asSharedFlow()
 
     override suspend fun startTunnel(tunnelConfig: TunnelConfig) : Tunnel.State{
-        try {
+        return try {
             if(getState() == Tunnel.State.UP && _tunnelName.value != tunnelConfig.name) {
                 stopTunnel()
             }
@@ -33,10 +33,10 @@ class WireGuardTunnel @Inject constructor(private val backend : Backend) : VpnSe
             val state = backend.setState(
                 this, Tunnel.State.UP, config)
             _state.emit(state)
-            return state;
+            state;
         } catch (e : Exception) {
             Timber.e("Failed to start tunnel with error: ${e.message}")
-            return Tunnel.State.DOWN
+            Tunnel.State.DOWN
         }
     }
 

app/src/main/java/com/zaneschepke/wireguardautotunnel/service/tunnel/model/TunnelConfig.kt

@@ -19,11 +19,64 @@ data class TunnelConfig(
     var name : String,
     var wgQuick : String
 ) {
+
+
     override fun toString(): String {
         return Json.encodeToString(serializer(), this)
     }
 
     companion object {
+        private const val INCLUDED_APPLICATIONS = "IncludedApplications = "
+        private const val EXCLUDED_APPLICATIONS = "ExcludedApplications = "
+        private const val INTERFACE = "[Interface]"
+        private const val NEWLINE_CHAR = "\n"
+        private const val APP_CONFIG_SEPARATOR = ", "
+
+        private fun addApplicationsToConfig(appConfig : String, wgQuick : String) : String {
+            val configList = wgQuick.split(NEWLINE_CHAR).toMutableList()
+            val interfaceIndex = configList.indexOf(INTERFACE)
+            configList.add(interfaceIndex + 1, appConfig)
+            return configList.joinToString(NEWLINE_CHAR)
+        }
+
+        fun clearAllApplicationsFromConfig(wgQuick : String) : String {
+            val configList = wgQuick.split(NEWLINE_CHAR).toMutableList()
+            val itr = configList.iterator()
+            while (itr.hasNext()) {
+                val next = itr.next()
+                if(next.contains(INCLUDED_APPLICATIONS) || next.contains(EXCLUDED_APPLICATIONS)) {
+                    itr.remove()
+                }
+            }
+            return configList.joinToString(NEWLINE_CHAR)
+        }
+
+
+        fun setExcludedApplicationsOnQuick(packages : List<String>, wgQuick: String) : String {
+            if(packages.isEmpty()) {
+                return wgQuick
+            }
+            val clearedWgQuick = clearAllApplicationsFromConfig(wgQuick)
+            val excludeConfig = buildExcludedApplicationsString(packages)
+            return addApplicationsToConfig(excludeConfig, clearedWgQuick)
+        }
+
+        fun setIncludedApplicationsOnQuick(packages : List<String>, wgQuick: String) : String {
+            if(packages.isEmpty()) {
+                return wgQuick
+            }
+            val clearedWgQuick = clearAllApplicationsFromConfig(wgQuick)
+            val includeConfig = buildIncludedApplicationsString(packages)
+            return addApplicationsToConfig(includeConfig, clearedWgQuick)
+        }
+
+        private fun buildExcludedApplicationsString(packages : List<String>) : String {
+            return EXCLUDED_APPLICATIONS + packages.joinToString(APP_CONFIG_SEPARATOR)
+        }
+
+        private fun buildIncludedApplicationsString(packages : List<String>) : String {
+            return INCLUDED_APPLICATIONS + packages.joinToString(APP_CONFIG_SEPARATOR)
+        }
         fun from(string : String) : TunnelConfig {
             return Json.decodeFromString<TunnelConfig>(string)
         }

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

@@ -33,6 +33,7 @@ import com.wireguard.android.backend.GoBackend
 import com.zaneschepke.wireguardautotunnel.R
 import com.zaneschepke.wireguardautotunnel.ui.common.PermissionRequestFailedScreen
 import com.zaneschepke.wireguardautotunnel.ui.common.navigation.BottomNavBar
+import com.zaneschepke.wireguardautotunnel.ui.screens.config.ConfigScreen
 import com.zaneschepke.wireguardautotunnel.ui.screens.main.MainScreen
 import com.zaneschepke.wireguardautotunnel.ui.screens.settings.SettingsScreen
 import com.zaneschepke.wireguardautotunnel.ui.screens.support.SupportScreen
@@ -121,11 +122,11 @@ class MainActivity : AppCompatActivity() {
                                     )
 
                                 else -> {
-                                    fadeIn(animationSpec = tween(2000))
+                                    fadeIn(animationSpec = tween(1000))
                                 }
                             }
                         }) {
-                            MainScreen(padding = padding, snackbarHostState = snackbarHostState)
+                            MainScreen(padding = padding, snackbarHostState = snackbarHostState, navController = navController)
                         }
                         composable(Routes.Settings.name, enterTransition = {
                             when (initialState.destination.route) {
@@ -143,7 +144,7 @@ class MainActivity : AppCompatActivity() {
                                 }
 
                                 else -> {
-                                    fadeIn(animationSpec = tween(2000))
+                                    fadeIn(animationSpec = tween(1000))
                                 }
                             }
                         }) { SettingsScreen(padding = padding, snackbarHostState = snackbarHostState, navController = navController) }
@@ -156,10 +157,13 @@ class MainActivity : AppCompatActivity() {
                                     )
 
                                 else -> {
-                                    fadeIn(animationSpec = tween(2000))
+                                    fadeIn(animationSpec = tween(1000))
                                 }
                             }
                         }) { SupportScreen(padding = padding) }
+                        composable("${Routes.Config.name}/{id}", enterTransition = {
+                            fadeIn(animationSpec = tween(1000))
+                        }) { ConfigScreen(padding = padding, navController = navController, id = it.arguments?.getString("id"))}
                     }
                 }
             }

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

@@ -9,7 +9,8 @@ import com.zaneschepke.wireguardautotunnel.ui.common.navigation.BottomNavItem
 enum class Routes {
     Main,
     Settings,
-    Support;
+    Support,
+    Config;
 
 
     companion object {

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

@@ -0,0 +1,200 @@
+package com.zaneschepke.wireguardautotunnel.ui.screens.config
+
+import android.widget.Toast
+import androidx.compose.foundation.Image
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxHeight
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.text.KeyboardActions
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.rounded.Android
+import androidx.compose.material3.Button
+import androidx.compose.material3.Checkbox
+import androidx.compose.material3.Icon
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Switch
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.ExperimentalComposeUiApi
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.platform.LocalFocusManager
+import androidx.compose.ui.platform.LocalSoftwareKeyboardController
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.input.ImeAction
+import androidx.compose.ui.text.input.KeyboardCapitalization
+import androidx.compose.ui.unit.dp
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import androidx.navigation.NavController
+import com.google.accompanist.drawablepainter.DrawablePainter
+import com.zaneschepke.wireguardautotunnel.R
+import com.zaneschepke.wireguardautotunnel.ui.Routes
+import kotlinx.coroutines.launch
+
+@OptIn(ExperimentalComposeUiApi::class)
+@Composable
+fun ConfigScreen(
+    viewModel: ConfigViewModel = hiltViewModel(),
+    padding: PaddingValues,
+    navController: NavController,
+    id : String?
+) {
+
+    val context = LocalContext.current
+    val focusManager = LocalFocusManager.current
+    val keyboardController = LocalSoftwareKeyboardController.current
+    val scope = rememberCoroutineScope()
+    val tunnel by viewModel.tunnel.collectAsStateWithLifecycle(null)
+    val tunnelName = viewModel.tunnelName.collectAsStateWithLifecycle()
+    val packages by viewModel.packages.collectAsStateWithLifecycle()
+    val checkedPackages by viewModel.checkedPackages.collectAsStateWithLifecycle()
+    val include by viewModel.include.collectAsStateWithLifecycle()
+    val allApplications by viewModel.allApplications.collectAsStateWithLifecycle()
+
+    LaunchedEffect(Unit) {
+        viewModel.getTunnelById(id)
+        viewModel.emitAllInternetCapablePackages()
+        viewModel.emitCurrentPackageConfigurations(id)
+    }
+
+    if(tunnel != null) {
+        Column(
+            horizontalAlignment = Alignment.Start,
+            verticalArrangement = Arrangement.Top,
+            modifier = Modifier
+                .fillMaxSize()
+                .padding(padding)
+        ) {
+            Row(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(horizontal = 20.dp, vertical = 7.dp),
+                verticalAlignment = Alignment.CenterVertically,
+                horizontalArrangement = Arrangement.SpaceBetween
+            ) {
+                OutlinedTextField(
+                    value = tunnelName.value,
+                    onValueChange = {
+                        viewModel.onTunnelNameChange(it)
+                    },
+                    label = { Text(stringResource(id = R.string.tunnel_name)) },
+                    maxLines = 1,
+                    keyboardOptions = KeyboardOptions(
+                        capitalization = KeyboardCapitalization.None,
+                        imeAction = ImeAction.Done
+                    ),
+                    keyboardActions = KeyboardActions(
+                        onDone = {
+                            focusManager.clearFocus()
+                            keyboardController?.hide()
+                            viewModel.onTunnelNameChange(tunnelName.value)
+                        }
+                    ),
+                )
+            }
+            Row(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(horizontal = 20.dp, vertical = 7.dp),
+                verticalAlignment = Alignment.CenterVertically,
+                horizontalArrangement = Arrangement.SpaceBetween
+            ) {
+                Text(stringResource(id = R.string.tunnel_all))
+                Switch(
+                    checked = allApplications,
+                    onCheckedChange = {
+                        viewModel.onAllApplicationsChange(!allApplications)
+                    }
+                )
+            }
+            if(!allApplications) {
+                Row(modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(horizontal = 20.dp, vertical = 7.dp),
+                    verticalAlignment = Alignment.CenterVertically,
+                    horizontalArrangement = Arrangement.SpaceBetween) {
+                    Row(verticalAlignment = Alignment.CenterVertically,
+                        horizontalArrangement = Arrangement.SpaceBetween){
+                        Text(stringResource(id = R.string.include))
+                        Checkbox(
+                            checked = include,
+                            onCheckedChange = {
+                                viewModel.onIncludeChange(!include)
+                            }
+                        )
+                    }
+                    Row(verticalAlignment = Alignment.CenterVertically,
+                        horizontalArrangement = Arrangement.SpaceBetween){
+                        Text(stringResource(id = R.string.exclude))
+                        Checkbox(
+                            checked = !include,
+                            onCheckedChange = {
+                                viewModel.onIncludeChange(!include)
+                            }
+                        )
+                    }
+                }
+                LazyColumn(modifier = Modifier
+                    .fillMaxWidth()
+                    .fillMaxHeight(.75f)
+                    .padding(horizontal = 14.dp, vertical = 7.dp),
+                    verticalArrangement = Arrangement.Center,
+                    horizontalAlignment = Alignment.Start) {
+                    items(packages) { pack ->
+                        Row(verticalAlignment = Alignment.CenterVertically,
+                            horizontalArrangement = Arrangement.SpaceBetween) {
+                            Row(
+                                horizontalArrangement = Arrangement.Center,
+                                verticalAlignment = Alignment.CenterVertically,
+                                modifier = Modifier.padding(5.dp)
+                            ) {
+                                val drawable = pack.applicationInfo?.loadIcon(context.packageManager)
+                                if(drawable != null) {
+                                    Image(painter = DrawablePainter(drawable), stringResource(id = R.string.icon), modifier = Modifier.size(50.dp, 50.dp))
+                                } else {
+                                    Icon(Icons.Rounded.Android, stringResource(id = R.string.edit), modifier = Modifier.size(50.dp, 50.dp))
+                                }
+                                Text(pack.applicationInfo.loadLabel(context.packageManager).toString(), modifier = Modifier.padding(5.dp))
+                            }
+                            Checkbox(
+                                checked = (checkedPackages.contains(pack.packageName)),
+                                onCheckedChange = {
+                                    if(it) viewModel.onAddCheckedPackage(pack.packageName) else viewModel.onRemoveCheckedPackage(pack.packageName)
+                                }
+                            )
+                        }
+                    }
+                }
+            }
+            Row(
+                horizontalArrangement = Arrangement.Center,
+                verticalAlignment = Alignment.CenterVertically,
+                modifier = Modifier.fillMaxWidth()
+            ) {
+                Button(onClick = {
+                    scope.launch {
+                        viewModel.onSaveAllChanges()
+                        Toast.makeText(context, context.resources.getString(R.string.config_changes_saved), Toast.LENGTH_LONG).show()
+                        navController.navigate(Routes.Main.name)
+                    }
+                }, Modifier.padding(25.dp)) {
+                    Text(stringResource(id = R.string.save_changes))
+                }
+            }
+        }
+    }
+}

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

@@ -0,0 +1,133 @@
+package com.zaneschepke.wireguardautotunnel.ui.screens.config
+
+import android.Manifest
+import android.app.Application
+import android.content.pm.PackageInfo
+import android.content.pm.PackageManager
+import android.os.Build
+import androidx.compose.runtime.mutableStateListOf
+import androidx.compose.runtime.toMutableStateList
+import androidx.lifecycle.ViewModel
+import com.zaneschepke.wireguardautotunnel.repository.Repository
+import com.zaneschepke.wireguardautotunnel.service.tunnel.model.TunnelConfig
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import timber.log.Timber
+import javax.inject.Inject
+
+@HiltViewModel
+class ConfigViewModel @Inject constructor(private val application : Application,
+                                          private val tunnelRepo : Repository<TunnelConfig>) : ViewModel() {
+
+    private val _tunnel = MutableStateFlow<TunnelConfig?>(null)
+    private val _tunnelName = MutableStateFlow("")
+    val tunnelName get() = _tunnelName.asStateFlow()
+    val tunnel get() = _tunnel.asStateFlow()
+    private val _packages = MutableStateFlow(emptyList<PackageInfo>())
+    val packages get() = _packages.asStateFlow()
+    private val packageManager = application.packageManager
+
+    private val _checkedPackages = MutableStateFlow(mutableStateListOf<String>())
+    val checkedPackages get() = _checkedPackages.asStateFlow()
+    private val _include = MutableStateFlow(true)
+    val include get() = _include.asStateFlow()
+
+    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)
+
+                }
+                return config
+            }
+            return null
+        } catch (e : Exception) {
+            Timber.e(e.message)
+            null
+        }
+    }
+
+    fun onTunnelNameChange(name : String) {
+        _tunnelName.value = name
+    }
+
+    fun onIncludeChange(include : Boolean) {
+        _include.value = include
+    }
+    fun onAddCheckedPackage(packageName : String) {
+        _checkedPackages.value.add(packageName)
+    }
+
+    fun onAllApplicationsChange(allApplications : Boolean) {
+        _allApplications.value = allApplications
+    }
+
+    fun onRemoveCheckedPackage(packageName : String) {
+        _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
+            }
+            if(excludedApps.isEmpty()) {
+                _include.emit(true)
+                _checkedPackages.emit(includedApps.toMutableStateList())
+            } else {
+                _include.emit(false)
+                _checkedPackages.emit(excludedApps.toMutableStateList())
+            }
+            _allApplications.emit(false)
+        }
+    }
+
+    suspend fun emitAllInternetCapablePackages() {
+        _packages.emit(getAllInternetCapablePackages())
+    }
+
+    private fun getAllInternetCapablePackages() : List<PackageInfo> {
+        return getPackagesHoldingPermissions(arrayOf(Manifest.permission.INTERNET))
+    }
+
+    private fun getPackagesHoldingPermissions(permissions: Array<String>): List<PackageInfo> {
+        return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+            packageManager.getPackagesHoldingPermissions(permissions, PackageManager.PackageInfoFlags.of(0L))
+        } else {
+            @Suppress("DEPRECATION")
+            packageManager.getPackagesHoldingPermissions(permissions, 0)
+        }
+    }
+
+    suspend fun onSaveAllChanges() {
+        var wgQuick = _tunnel.value?.wgQuick
+        if(wgQuick != null) {
+            wgQuick = if(_include.value) {
+                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)
+            }
+        }
+    }
+}

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

@@ -1,39 +1,41 @@
 package com.zaneschepke.wireguardautotunnel.ui.screens.main
 
 import android.annotation.SuppressLint
-import android.widget.Toast
 import androidx.activity.compose.rememberLauncherForActivityResult
 import androidx.activity.result.contract.ActivityResultContracts
+import androidx.compose.foundation.clickable
 import androidx.compose.foundation.gestures.detectTapGestures
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.items
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.FileOpen
+import androidx.compose.material.icons.filled.QrCode
 import androidx.compose.material.icons.rounded.Add
 import androidx.compose.material.icons.rounded.Delete
 import androidx.compose.material.icons.rounded.Edit
-import androidx.compose.material3.AlertDialog
-import androidx.compose.material3.Button
+import androidx.compose.material3.Divider
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.FabPosition
 import androidx.compose.material3.FloatingActionButton
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.ModalBottomSheet
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.SnackbarDuration
 import androidx.compose.material3.SnackbarHostState
 import androidx.compose.material3.SnackbarResult
 import androidx.compose.material3.Switch
 import androidx.compose.material3.Text
+import androidx.compose.material3.rememberModalBottomSheetState
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
@@ -53,9 +55,11 @@ import androidx.compose.ui.text.font.FontStyle
 import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import androidx.navigation.NavController
 import com.wireguard.android.backend.Tunnel
 import com.zaneschepke.wireguardautotunnel.R
 import com.zaneschepke.wireguardautotunnel.service.tunnel.model.TunnelConfig
+import com.zaneschepke.wireguardautotunnel.ui.Routes
 import com.zaneschepke.wireguardautotunnel.ui.common.RowListItem
 import kotlinx.coroutines.launch
 
@@ -63,17 +67,17 @@ import kotlinx.coroutines.launch
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun MainScreen(viewModel: MainViewModel = hiltViewModel(), padding : PaddingValues,
-               snackbarHostState : SnackbarHostState) {
+               snackbarHostState : SnackbarHostState, navController: NavController) {
 
     val haptic = LocalHapticFeedback.current
     val context = LocalContext.current
     val scope = rememberCoroutineScope()
 
+    val sheetState = rememberModalBottomSheetState()
+    var showBottomSheet by remember { mutableStateOf(false) }
     val tunnels by viewModel.tunnels.collectAsStateWithLifecycle(mutableListOf())
     val viewState = viewModel.viewState.collectAsStateWithLifecycle()
-    var showAlertDialog by remember { mutableStateOf(false) }
     var selectedTunnel by remember { mutableStateOf<TunnelConfig?>(null) }
-    val settings by viewModel.settings.collectAsStateWithLifecycle()
     val state by viewModel.state.collectAsStateWithLifecycle(Tunnel.State.DOWN)
     val tunnelName by viewModel.tunnelName.collectAsStateWithLifecycle("")
 
@@ -111,14 +115,14 @@ fun MainScreen(viewModel: MainViewModel = hiltViewModel(), padding : PaddingValu
             FloatingActionButton(
                 modifier = Modifier.padding(bottom = 90.dp),
                 onClick = {
-                    pickFileLauncher.launch("*/*")
+                    showBottomSheet = true
                 },
                 containerColor = MaterialTheme.colorScheme.secondary,
                 shape = RoundedCornerShape(16.dp),
             ) {
                 Icon(
                     imageVector = Icons.Rounded.Add,
-                    contentDescription = "Add Tunnel",
+                    contentDescription = stringResource(id = R.string.add_tunnel),
                     tint = Color.DarkGray,
                 )
             }
@@ -135,6 +139,42 @@ fun MainScreen(viewModel: MainViewModel = hiltViewModel(), padding : PaddingValu
                 Text(text = stringResource(R.string.no_tunnels), fontStyle = FontStyle.Italic)
             }
         }
+        if (showBottomSheet) {
+            ModalBottomSheet(
+                onDismissRequest = {
+                    showBottomSheet = false
+                },
+                sheetState = sheetState
+            ) {
+                // Sheet content
+                Row(
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .clickable {
+                            showBottomSheet = false
+                            pickFileLauncher.launch("*/*")
+                        }
+                        .padding(10.dp)
+                ) {
+                    Icon(Icons.Filled.FileOpen, contentDescription = stringResource(id = R.string.open_file), modifier = Modifier.padding(10.dp))
+                    Text(stringResource(id = R.string.add_from_file), modifier = Modifier.padding(10.dp))
+                }
+                Divider()
+                Row(modifier = Modifier
+                    .fillMaxWidth()
+                    .clickable {
+                        scope.launch {
+                            showBottomSheet = false
+                            viewModel.onTunnelQRSelected()
+                        }
+                    }
+                    .padding(10.dp)
+                ) {
+                    Icon(Icons.Filled.QrCode, contentDescription = stringResource(id = R.string.qr_scan), modifier = Modifier.padding(10.dp))
+                    Text(stringResource(id = R.string.add_from_qr), modifier = Modifier.padding(10.dp))
+                }
+            }
+        }
         Column(
             horizontalAlignment = Alignment.Start,
             verticalArrangement = Arrangement.Top,
@@ -158,12 +198,12 @@ fun MainScreen(viewModel: MainViewModel = hiltViewModel(), padding : PaddingValu
                         if (tunnel.id == selectedTunnel?.id) {
                             Row() {
                                 IconButton(onClick = {
-                                    showAlertDialog = true
+                                    navController.navigate("${Routes.Config.name}/${selectedTunnel?.id}")
                                 }) {
-                                    Icon(Icons.Rounded.Edit, "Edit")
+                                    Icon(Icons.Rounded.Edit, stringResource(id = R.string.edit))
                                 }
                                 IconButton(onClick = { viewModel.onDelete(tunnel) }) {
-                                    Icon(Icons.Rounded.Delete, "Delete")
+                                    Icon(Icons.Rounded.Delete, stringResource(id = R.string.delete))
                                 }
                             }
                         } else {
@@ -177,36 +217,6 @@ fun MainScreen(viewModel: MainViewModel = hiltViewModel(), padding : PaddingValu
                     })
                 }
             }
-            if (showAlertDialog && selectedTunnel != null) {
-                AlertDialog(onDismissRequest = {
-                    showAlertDialog = false
-                }, confirmButton = {
-                    Button(onClick = {
-                        if (tunnels.any { it.name == selectedTunnel?.name }) {
-                            Toast.makeText(context, context.resources.getString(R.string.tunnel_exists), Toast.LENGTH_LONG)
-                                .show()
-                            return@Button
-                        }
-                        viewModel.onEditTunnel(selectedTunnel!!)
-                        showAlertDialog = false
-                    }) {
-                        Text("Save")
-                    }
-                },
-                    title = { Text("Tunnel Edit") }, text = {
-                        OutlinedTextField(
-                            value = selectedTunnel!!.name,
-                            onValueChange = {
-                                selectedTunnel = selectedTunnel!!.copy(
-                                    name = it
-                                )
-                            },
-                            label = { Text("Tunnel Name") },
-                            modifier = Modifier.padding(start = 15.dp, top = 5.dp),
-                            maxLines = 1,
-                        )
-                    })
-            }
         }
     }
 }

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

@@ -10,6 +10,7 @@ import androidx.lifecycle.viewModelScope
 import com.wireguard.config.Config
 import com.zaneschepke.wireguardautotunnel.R
 import com.zaneschepke.wireguardautotunnel.repository.Repository
+import com.zaneschepke.wireguardautotunnel.service.barcode.CodeScanner
 import com.zaneschepke.wireguardautotunnel.service.foreground.Action
 import com.zaneschepke.wireguardautotunnel.service.foreground.ServiceState
 import com.zaneschepke.wireguardautotunnel.service.foreground.ServiceTracker
@@ -32,7 +33,8 @@ import javax.inject.Inject
 class MainViewModel @Inject constructor(private val application : Application,
                                         private val tunnelRepo : Repository<TunnelConfig>,
                                         private val settingsRepo : Repository<Settings>,
-                                        private val vpnService: VpnService
+                                        private val vpnService: VpnService,
+                                        private val codeScanner: CodeScanner
 ) : ViewModel() {
 
     private val _viewState = MutableStateFlow(ViewState())
@@ -43,7 +45,9 @@ class MainViewModel @Inject constructor(private val application : Application,
     private val _settings = MutableStateFlow(Settings())
     val settings get() = _settings.asStateFlow()
 
-    private val defaultConfigName = "tunnel${(Math.random() * 1000).toInt()}"
+    private val defaultConfigName = {
+        "tunnel${(Math.random() * 100000).toInt()}"
+    }
 
 
     init {
@@ -86,22 +90,6 @@ class MainViewModel @Inject constructor(private val application : Application,
         }
     }
 
-
-    fun onEditTunnel(tunnel: TunnelConfig) {
-        viewModelScope.launch {
-            tunnelRepo.save(tunnel)
-            val settings = settingsRepo.getAll()
-            if(!settings.isNullOrEmpty() && settings[0].defaultTunnel != null) {
-                val setting = settings[0]
-                val defaultTunnelConfig = TunnelConfig.from(setting.defaultTunnel!!)
-                if(defaultTunnelConfig.id == tunnel.id) {
-                    setting.defaultTunnel = tunnel.toString()
-                    settingsRepo.save(setting)
-                }
-            }
-        }
-    }
-
     fun onTunnelStart(tunnelConfig : TunnelConfig) = viewModelScope.launch {
             ServiceTracker.actionOnService( Action.START, application, WireGuardTunnelService::class.java,
                 mapOf(application.resources.getString(R.string.tunnel_extras_key) to tunnelConfig.toString()))
@@ -111,6 +99,17 @@ class MainViewModel @Inject constructor(private val application : Application,
         ServiceTracker.actionOnService( Action.STOP, application, WireGuardTunnelService::class.java)
     }
 
+    suspend fun onTunnelQRSelected() {
+        codeScanner.scan().collect {
+            Timber.d(it)
+            if(!it.isNullOrEmpty() && it.contains(application.resources.getString(R.string.config_validation))) {
+                tunnelRepo.save(TunnelConfig(name = defaultConfigName(), wgQuick = it))
+            } else {
+                showSnackBarMessage("Invalid QR code. Try again.")
+            }
+        }
+    }
+
     fun onTunnelFileSelected(uri : Uri) {
         val fileName = getFileName(application.applicationContext, uri)
         val extension = getFileExtensionFromFileName(fileName)
@@ -135,14 +134,14 @@ class MainViewModel @Inject constructor(private val application : Application,
     private fun getFileName(context: Context, uri: Uri): String {
         if (uri.scheme == "content") {
             val cursor = context.contentResolver.query(uri, null, null, null, null)
-            cursor ?: return defaultConfigName
+            cursor ?: return defaultConfigName()
             cursor.use {
                 if(cursor.moveToFirst()) {
                     return cursor.getString(cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME))
                 }
             }
         }
-        return defaultConfigName
+        return defaultConfigName()
     }
 
     suspend fun showSnackBarMessage(message : String) {

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

@@ -4,28 +4,24 @@ import android.Manifest
 import android.content.Intent
 import android.net.Uri
 import android.provider.Settings
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.interaction.MutableInteractionSource
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.ExperimentalLayoutApi
 import androidx.compose.foundation.layout.FlowRow
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
-import androidx.compose.foundation.layout.wrapContentHeight
 import androidx.compose.foundation.text.KeyboardActions
 import androidx.compose.foundation.text.KeyboardOptions
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Close
-import androidx.compose.material.icons.filled.Done
 import androidx.compose.material.icons.outlined.Add
-import androidx.compose.material.icons.outlined.AddCircleOutline
-import androidx.compose.material.icons.outlined.Done
 import androidx.compose.material.icons.rounded.LocationOff
-import androidx.compose.material.icons.rounded.Map
 import androidx.compose.material3.Button
 import androidx.compose.material3.DropdownMenuItem
 import androidx.compose.material3.ExperimentalMaterial3Api
@@ -51,6 +47,7 @@ import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.platform.LocalFocusManager
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.font.FontStyle
 import androidx.compose.ui.text.input.ImeAction
@@ -68,7 +65,6 @@ import com.zaneschepke.wireguardautotunnel.R
 import com.zaneschepke.wireguardautotunnel.service.tunnel.model.TunnelConfig
 import com.zaneschepke.wireguardautotunnel.ui.Routes
 import com.zaneschepke.wireguardautotunnel.ui.common.ClickableIconButton
-import com.zaneschepke.wireguardautotunnel.ui.common.PermissionRequestFailedScreen
 import kotlinx.coroutines.launch
 
 @OptIn(ExperimentalMaterial3Api::class, ExperimentalPermissionsApi::class,
@@ -84,6 +80,9 @@ fun SettingsScreen(
 
     val scope = rememberCoroutineScope()
     val context = LocalContext.current
+    val focusManager = LocalFocusManager.current
+    val interactionSource = remember { MutableInteractionSource() }
+
     var expanded by remember { mutableStateOf(false) }
     val viewState by viewModel.viewState.collectAsStateWithLifecycle()
     val settings by viewModel.settings.collectAsStateWithLifecycle()
@@ -122,7 +121,7 @@ fun SettingsScreen(
             modifier = Modifier
                 .fillMaxSize()
                 .padding(padding)) {
-            Icon(Icons.Rounded.LocationOff, contentDescription = "Map", modifier = Modifier
+            Icon(Icons.Rounded.LocationOff, contentDescription = stringResource(id = R.string.map), modifier = Modifier
                 .padding(30.dp)
                 .size(128.dp))
             Text(stringResource(R.string.prominent_background_location_title), textAlign = TextAlign.Center, modifier = Modifier.padding(30.dp), fontSize = 20.sp)
@@ -138,7 +137,7 @@ fun SettingsScreen(
                 Button(onClick = {
                     navController.navigate(Routes.Main.name)
                 }) {
-                    Text("No thanks")
+                    Text(stringResource(id = R.string.no_thanks))
                 }
                 Button(onClick = {
                     scope.launch {
@@ -149,7 +148,7 @@ fun SettingsScreen(
                         context.startActivity(intentSettings)
                     }
                 }) {
-                    Text("Turn on")
+                    Text(stringResource(id = R.string.turn_on))
                 }
             }
         }
@@ -179,6 +178,9 @@ fun SettingsScreen(
         verticalArrangement = Arrangement.Top,
         modifier = Modifier
             .fillMaxSize()
+            .clickable(indication = null, interactionSource = interactionSource) {
+                focusManager.clearFocus()
+            }
             .padding(padding)
     ) {
         Row(

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

@@ -12,12 +12,12 @@
     <string name="turn_off_tunnel">Turn off tunnel before editing</string>
     <string name="no_tunnels">No tunnels added yet!</string>
     <string name="tunnel_exists">Tunnel name already exists</string>
-    <string name="discord_url">https://discord.gg/Ad5fuEts</string>
+    <string name="discord_url">https://discord.gg/rbRRNh6H7V</string>
     <string name="watcher_notification_title">Watcher Service</string>
     <string name="watcher_notification_text">Monitoring network state changes</string>
     <string name="tunnel_start_title">VPN Connected</string>
     <string name="tunnel_start_text">Connected to tunnel -</string>
-    <string name="vpn_permission_required">VPN permission is required for the app to work properly.</string>
+    <string name="vpn_permission_required">VPN permission is required for the app to work properly. If this permission is not launching, please disable \"Always-on VPN\" in your phone settings for the official WireGuard mobile app and try again.</string>
     <string name="notification_permission_required">Notifications permission is required for the app to work properly.</string>
     <string name="open_settings">Open Settings</string>
     <string name="add_trusted_ssid">Add Trusted SSID</string>
@@ -37,4 +37,24 @@
     <string name="support_text">Thank you for using WG Tunnel! If you are experiencing issues with the app, please reach out on Discord or create an issue on Github. I will try to address the issue as quickly as possible. Thank you!</string>
     <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>
+    <string name="qr_scan">QR Scan</string>
+    <string name="tunnel_edit">Tunnel Edit</string>
+    <string name="tunnel_name">Tunnel Name</string>
+    <string name="edit">Edit</string>
+    <string name="delete">Delete</string>
+    <string name="add_tunnel">Add Tunnel</string>
+    <string name="exclude">Exclude</string>
+    <string name="include">Include</string>
+    <string name="tunnel_all">Tunnel all applications</string>
+    <string name="config_changes_saved">Configuration changes saved.</string>
+    <string name="save_changes">Save changes</string>
+    <string name="icon">Icon</string>
+    <string name="no_thanks">No thanks</string>
+    <string name="turn_on">Turn on</string>
+    <string name="map">Map</string>
 </resources>

build.gradle.kts

@@ -8,7 +8,7 @@ buildscript {
     dependencies {
         classpath("io.objectbox:objectbox-gradle-plugin:$objectBoxVersion")
         classpath("com.google.gms:google-services:4.3.15")
-        classpath("com.google.firebase:firebase-crashlytics-gradle:2.9.5")
+        classpath("com.google.firebase:firebase-crashlytics-gradle:2.9.6")
     }
 }