fix: stop tunnel regression

Fixes regression where tunnel is stuck in on state after x amount of toggles. Closes #163

Adds obfuscation of potentially sensitive data from logs.
Closes #160

Adds hiding of FAB on scroll to allow users to toggle tunnels when they have many tunnel configs.
Closes #161

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

@@ -24,7 +24,7 @@ class NotificationActionReceiver : BroadcastReceiver() {
     override fun onReceive(context: Context, intent: Intent?) = goAsync {
         try {
             //TODO fix for manual start changes when enabled
-            serviceManager.stopVpnService(context)
+            serviceManager.stopVpnServiceForeground(context)
             delay(Constants.TOGGLE_TUNNEL_DELAY)
             serviceManager.startVpnServiceForeground(context)
         } catch (e: Exception) {

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

@@ -3,5 +3,6 @@ package com.zaneschepke.wireguardautotunnel.service.foreground
 enum class Action {
     START,
     START_FOREGROUND,
-    STOP
+    STOP,
+    STOP_FOREGROUND
 }

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

@@ -24,7 +24,7 @@ open class ForegroundService : LifecycleService() {
             when (action) {
                 Action.START.name,
                 Action.START_FOREGROUND.name -> startService(intent.extras)
-
+                Action.STOP.name, Action.STOP_FOREGROUND.name -> stopService()
                 Constants.ALWAYS_ON_VPN_ACTION -> {
                     Timber.i("Always-on VPN starting service")
                     startService(intent.extras)
@@ -37,16 +37,9 @@ open class ForegroundService : LifecycleService() {
                 "with a null intent. It has been probably restarted by the system.",
             )
         }
-        // by returning this we make sure the service is restarted if the system kills the service
         return START_STICKY
     }
 
-    override fun onDestroy() {
-        super.onDestroy()
-        Timber.d("The service has been destroyed")
-        stopService()
-    }
-
     protected open fun startService(extras: Bundle?) {
         if (isServiceStarted) return
         Timber.d("Starting ${this.javaClass.simpleName}")
@@ -55,12 +48,8 @@ open class ForegroundService : LifecycleService() {
 
     protected open fun stopService() {
         Timber.d("Stopping ${this.javaClass.simpleName}")
-        try {
-            stopForeground(STOP_FOREGROUND_REMOVE)
-            stopSelf()
-        } catch (e: Exception) {
-            Timber.e(e)
-        }
+        stopForeground(STOP_FOREGROUND_REMOVE)
+        stopSelf()
         isServiceStarted = false
     }
 }

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

@@ -23,9 +23,8 @@ class ServiceManager(private val appDataRepository: AppDataRepository) {
         intent.component?.javaClass
         try {
             when (action) {
-                Action.START_FOREGROUND -> context.startForegroundService(intent)
-                Action.START -> context.startService(intent)
-                Action.STOP -> context.stopService(intent)
+                Action.START_FOREGROUND, Action.STOP_FOREGROUND -> context.startForegroundService(intent)
+                Action.START, Action.STOP -> context.startService(intent)
             }
         } catch (e: Exception) {
             Timber.e(e.message)
@@ -46,6 +45,16 @@ class ServiceManager(private val appDataRepository: AppDataRepository) {
         )
     }
 
+    suspend fun stopVpnServiceForeground(context: Context, isManualStop: Boolean = false) {
+        if (isManualStop) onManualStop()
+        Timber.i("Stopping vpn service")
+        actionOnService(
+            Action.STOP_FOREGROUND,
+            context,
+            WireGuardTunnelService::class.java,
+        )
+    }
+
     suspend fun stopVpnService(context: Context, isManualStop: Boolean = false) {
         if (isManualStop) onManualStop()
         Timber.i("Stopping vpn service")

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

@@ -18,6 +18,7 @@ import com.zaneschepke.wireguardautotunnel.service.notification.NotificationServ
 import com.zaneschepke.wireguardautotunnel.service.tunnel.VpnService
 import com.zaneschepke.wireguardautotunnel.util.Constants
 import dagger.hilt.android.AndroidEntryPoint
+import kotlinx.coroutines.CancellationException
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.delay
@@ -56,7 +57,7 @@ class WireGuardConnectivityWatcherService : ForegroundService() {
 
     private val networkEventsFlow = MutableStateFlow(WatcherState())
 
-    private lateinit var watcherJob: Job
+    private var watcherJob: Job? = null
 
     private var wakeLock: PowerManager.WakeLock? = null
     private val tag = this.javaClass.name
@@ -74,11 +75,6 @@ class WireGuardConnectivityWatcherService : ForegroundService() {
         }
     }
 
-    override fun onDestroy() {
-        super.onDestroy()
-        stopService()
-    }
-
     override fun startService(extras: Bundle?) {
         super.startService(extras)
         try {
@@ -139,8 +135,10 @@ class WireGuardConnectivityWatcherService : ForegroundService() {
     }
 
     private fun cancelWatcherJob() {
-        if (this::watcherJob.isInitialized) {
-            watcherJob.cancel()
+        try {
+            watcherJob?.cancel()
+        } catch (e : CancellationException) {
+            Timber.i("Watcher job cancelled")
         }
     }
 
@@ -236,7 +234,7 @@ class WireGuardConnectivityWatcherService : ForegroundService() {
                         }
                         if (results.contains(false)) {
                             Timber.i("Restarting VPN for ping failure")
-                            serviceManager.stopVpnService(this)
+                            serviceManager.stopVpnServiceForeground(this)
                             delay(Constants.VPN_RESTART_DELAY)
                             serviceManager.startVpnServiceForeground(this)
                             delay(Constants.PING_COOLDOWN)
@@ -324,7 +322,9 @@ class WireGuardConnectivityWatcherService : ForegroundService() {
                         )
                     val ssid = wifiService.getNetworkName(it.networkCapabilities)
                     ssid?.let {
-                        Timber.i("Detected SSID: $ssid")
+                        if(it.contains(Constants.UNREADABLE_SSID)) {
+                            Timber.w("SSID unreadable: missing permissions")
+                        } else Timber.i("Detected valid SSID")
                         appDataRepository.appState.setCurrentSsid(ssid)
                         networkEventsFlow.value =
                             networkEventsFlow.value.copy(
@@ -381,7 +381,7 @@ class WireGuardConnectivityWatcherService : ForegroundService() {
 
                     watcherState.isTunnelOffOnMobileDataConditionMet() -> {
                         Timber.i("$autoTunnel - tunnel off on mobile data met, turning vpn off")
-                        serviceManager.stopVpnService(this)
+                        serviceManager.stopVpnServiceForeground(this)
                     }
 
                     watcherState.isTunnelNotWifiNamePreferredMet(watcherState.currentNetworkSSID) -> {
@@ -407,17 +407,17 @@ class WireGuardConnectivityWatcherService : ForegroundService() {
 
                     watcherState.isTrustedWifiConditionMet() -> {
                         Timber.i("$autoTunnel - tunnel off on trusted wifi condition met, turning vpn off")
-                        serviceManager.stopVpnService(this)
+                        serviceManager.stopVpnServiceForeground(this)
                     }
 
                     watcherState.isTunnelOffOnWifiConditionMet() -> {
                         Timber.i("$autoTunnel - tunnel off on wifi condition met, turning vpn off")
-                        serviceManager.stopVpnService(this)
+                        serviceManager.stopVpnServiceForeground(this)
                     }
 
                     watcherState.isTunnelOffOnNoConnectivityMet() -> {
                         Timber.i("$autoTunnel - tunnel off on no connectivity met, turning vpn off")
-                        serviceManager.stopVpnService(this)
+                        serviceManager.stopVpnServiceForeground(this)
                     }
 
                     else -> {

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

@@ -16,10 +16,12 @@ import com.zaneschepke.wireguardautotunnel.util.Constants
 import com.zaneschepke.wireguardautotunnel.util.handshakeStatus
 import com.zaneschepke.wireguardautotunnel.util.mapPeerStats
 import dagger.hilt.android.AndroidEntryPoint
+import kotlinx.coroutines.CancellationException
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
+import timber.log.Timber
 import javax.inject.Inject
 
 @AndroidEntryPoint
@@ -35,7 +37,7 @@ class WireGuardTunnelService : ForegroundService() {
     @Inject
     lateinit var notificationService: NotificationService
 
-    private lateinit var job: Job
+    private var job: Job? = null
 
     private var didShowConnected = false
 
@@ -49,11 +51,6 @@ class WireGuardTunnelService : ForegroundService() {
         }
     }
 
-    override fun onDestroy() {
-        super.onDestroy()
-
-    }
-
     override fun startService(extras: Bundle?) {
         super.startService(extras)
         cancelJob()
@@ -182,8 +179,10 @@ class WireGuardTunnelService : ForegroundService() {
     }
 
     private fun cancelJob() {
-        if (this::job.isInitialized) {
-            job.cancel()
+        try {
+            job?.cancel()
+        } catch (e : CancellationException) {
+            Timber.i("Tunnel job cancelled")
         }
     }
 }

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

@@ -40,7 +40,7 @@ class ShortcutsActivity : ComponentActivity() {
                                 this@ShortcutsActivity, tunnelConfig?.id, isManualStart = true,
                             )
 
-                            Action.STOP.name -> serviceManager.stopVpnService(
+                            Action.STOP.name -> serviceManager.stopVpnServiceForeground(
                                 this@ShortcutsActivity,
                                 isManualStop = true,
                             )

app/src/main/java/com/zaneschepke/wireguardautotunnel/service/tile/TunnelControlTile.kt

@@ -80,7 +80,7 @@ class TunnelControlTile : TileService() {
             scope.launch {
                 try {
                     if (vpnService.getState() == Tunnel.State.UP) {
-                        serviceManager.stopVpnService(
+                        serviceManager.stopVpnServiceForeground(
                             this@TunnelControlTile,
                             isManualStop = true,
                         )

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

@@ -10,6 +10,7 @@ import com.zaneschepke.wireguardautotunnel.data.repository.AppDataRepository
 import com.zaneschepke.wireguardautotunnel.module.Kernel
 import com.zaneschepke.wireguardautotunnel.module.Userspace
 import com.zaneschepke.wireguardautotunnel.util.Constants
+import kotlinx.coroutines.CancellationException
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
@@ -33,7 +34,7 @@ constructor(
 
     private val scope = CoroutineScope(Dispatchers.IO)
 
-    private lateinit var statsJob: Job
+    private var statsJob: Job? = null
 
     private var backend: Backend = userspaceBackend
 
@@ -134,8 +135,10 @@ constructor(
                 }
         }
         if (state == State.DOWN) {
-            if (this::statsJob.isInitialized) {
-                statsJob.cancel()
+            try {
+                statsJob?.cancel()
+            } catch (e : CancellationException) {
+                Timber.i("Stats job cancelled")
             }
         }
     }

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

@@ -118,12 +118,12 @@ constructor(
     fun readLogCatOutput() =
         viewModelScope.launch(viewModelScope.coroutineContext + Dispatchers.IO) {
             launch {
-                Logcatter.logs {
+                Logcatter.logs(callback = {
                     logs.add(it)
                     if (logs.size > Constants.LOG_BUFFER_SIZE) {
                         logs.removeRange(0, (logs.size - Constants.LOG_BUFFER_SIZE).toInt())
                     }
-                }
+                })
             }
         }
 

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

@@ -71,8 +71,12 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.focus.FocusRequester
 import androidx.compose.ui.focus.focusRequester
 import androidx.compose.ui.focus.onFocusChanged
+import androidx.compose.ui.geometry.Offset
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.hapticfeedback.HapticFeedbackType
+import androidx.compose.ui.input.nestedscroll.NestedScrollConnection
+import androidx.compose.ui.input.nestedscroll.NestedScrollSource
+import androidx.compose.ui.input.nestedscroll.nestedScroll
 import androidx.compose.ui.input.pointer.pointerInput
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.platform.LocalHapticFeedback
@@ -124,6 +128,25 @@ fun MainScreen(
     val sheetState = rememberModalBottomSheetState()
     var showBottomSheet by remember { mutableStateOf(false) }
 
+    // Nested scroll for control FAB
+    val nestedScrollConnection = remember {
+        object : NestedScrollConnection {
+            override fun onPreScroll(available: Offset, source: NestedScrollSource): Offset {
+                // Hide FAB
+                if (available.y < -1) {
+                    isVisible.value = false
+                }
+                // Show FAB
+                if (available.y > 1) {
+                    isVisible.value = true
+                }
+
+                return Offset.Zero
+            }
+        }
+    }
+
+
     var showDeleteTunnelAlertDialog by remember { mutableStateOf(false) }
     var selectedTunnel by remember { mutableStateOf<TunnelConfig?>(null) }
     val uiState by viewModel.uiState.collectAsStateWithLifecycle()
@@ -377,8 +400,8 @@ fun MainScreen(
             verticalArrangement = Arrangement.Top,
             modifier =
             Modifier
-                .fillMaxWidth()
-                .overscroll(ScrollableDefaults.overscrollEffect()),
+                .fillMaxSize()
+                .overscroll(ScrollableDefaults.overscrollEffect()).nestedScroll(nestedScrollConnection),
             state = rememberLazyListState(0, uiState.tunnels.count()),
             userScrollEnabled = true,
             reverseLayout = false,

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

@@ -35,4 +35,6 @@ object Constants {
 
     const val TUNNEL_EXTRA_KEY = "tunnelId"
 
+    const val UNREADABLE_SSID = "<unknown ssid>"
+
 }