Handle legacy always-on vpn profiles

android/app/src/main/kotlin/net/mullvad/mullvadvpn/compose/component/notificationbanner/NotificationBanner.kt

@@ -21,6 +21,7 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.vector.ImageVector
 import androidx.compose.ui.platform.testTag
 import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.text.toUpperCase
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.constraintlayout.compose.ConstraintLayout
@@ -129,7 +130,7 @@ private fun Notification(notificationBannerData: NotificationData) {
             },
         )
         Text(
-            text = title.uppercase(),
+            text = title.toUpperCase(),
             modifier =
                 Modifier.constrainAs(textTitle) {
                         top.linkTo(parent.top)

android/app/src/main/kotlin/net/mullvad/mullvadvpn/compose/component/notificationbanner/NotificationData.kt

@@ -3,7 +3,6 @@ package net.mullvad.mullvadvpn.compose.component.notificationbanner
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.automirrored.filled.OpenInNew
 import androidx.compose.material.icons.filled.Clear
-import androidx.compose.material.icons.filled.OpenInNew
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.graphics.vector.ImageVector
@@ -13,26 +12,29 @@ import androidx.compose.ui.text.AnnotatedString
 import androidx.compose.ui.text.SpanStyle
 import androidx.compose.ui.text.font.FontWeight
 import androidx.core.text.HtmlCompat
+import java.net.InetAddress
 import net.mullvad.mullvadvpn.R
 import net.mullvad.mullvadvpn.compose.extensions.getExpiryQuantityString
 import net.mullvad.mullvadvpn.compose.extensions.toAnnotatedString
-import net.mullvad.mullvadvpn.lib.common.util.getErrorNotificationResources
+import net.mullvad.mullvadvpn.lib.model.AuthFailedError
 import net.mullvad.mullvadvpn.lib.model.ErrorState
+import net.mullvad.mullvadvpn.lib.model.ErrorStateCause
+import net.mullvad.mullvadvpn.lib.model.ParameterGenerationError
 import net.mullvad.mullvadvpn.repository.InAppNotification
 import net.mullvad.mullvadvpn.ui.notification.StatusLevel
 
 data class NotificationData(
-    val title: String,
+    val title: AnnotatedString,
     val message: AnnotatedString? = null,
     val statusLevel: StatusLevel,
     val action: NotificationAction? = null,
 ) {
     constructor(
         title: String,
-        message: String?,
+        message: String? = null,
         statusLevel: StatusLevel,
-        action: NotificationAction?,
-    ) : this(title, message?.let { AnnotatedString(it) }, statusLevel, action)
+        action: NotificationAction? = null,
+    ) : this(AnnotatedString(title), message?.let { AnnotatedString(it) }, statusLevel, action)
 }
 
 data class NotificationAction(
@@ -51,22 +53,11 @@ fun InAppNotification.toNotificationData(
     when (this) {
         is InAppNotification.NewDevice ->
             NotificationData(
-                title = stringResource(id = R.string.new_device_notification_title),
+                title =
+                    AnnotatedString(stringResource(id = R.string.new_device_notification_title)),
                 message =
-                    HtmlCompat.fromHtml(
-                            stringResource(
-                                id = R.string.new_device_notification_message,
-                                deviceName,
-                            ),
-                            HtmlCompat.FROM_HTML_MODE_COMPACT,
-                        )
-                        .toAnnotatedString(
-                            boldSpanStyle =
-                                SpanStyle(
-                                    color = MaterialTheme.colorScheme.onSurface,
-                                    fontWeight = FontWeight.ExtraBold,
-                                )
-                        ),
+                    stringResource(id = R.string.new_device_notification_message, deviceName)
+                        .formatWithHtml(),
                 statusLevel = StatusLevel.Info,
                 action =
                     NotificationAction(
@@ -111,23 +102,94 @@ fun InAppNotification.toNotificationData(
 
 @Composable
 private fun errorMessageBannerData(error: ErrorState) =
-    error.getErrorNotificationResources(LocalContext.current).run {
-        NotificationData(
-            title = stringResource(id = titleResourceId),
-            message =
-                HtmlCompat.fromHtml(
-                        optionalMessageArgument?.let { stringResource(id = messageResourceId, it) }
-                            ?: stringResource(id = messageResourceId),
-                        HtmlCompat.FROM_HTML_MODE_COMPACT,
-                    )
-                    .toAnnotatedString(
-                        boldSpanStyle =
-                            SpanStyle(
-                                color = MaterialTheme.colorScheme.onSurface,
-                                fontWeight = FontWeight.ExtraBold,
-                            )
-                    ),
-            statusLevel = StatusLevel.Error,
-            action = null,
+    NotificationData(
+        title = error.title().formatWithHtml(),
+        message = error.message().formatWithHtml(),
+        statusLevel = StatusLevel.Error,
+        action = null,
+    )
+
+@Composable
+private fun String.formatWithHtml(): AnnotatedString =
+    HtmlCompat.fromHtml(this, HtmlCompat.FROM_HTML_MODE_COMPACT)
+        .toAnnotatedString(
+            boldSpanStyle =
+                SpanStyle(
+                    color = MaterialTheme.colorScheme.onSurface,
+                    fontWeight = FontWeight.ExtraBold,
+                )
         )
+
+@Composable
+private fun ErrorState.title(): String {
+    val cause = this.cause
+    return when {
+        cause is ErrorStateCause.InvalidDnsServers -> stringResource(R.string.blocking_internet)
+        cause is ErrorStateCause.NotPrepared ->
+            stringResource(R.string.vpn_permission_error_notification_title)
+        cause is ErrorStateCause.AlwaysOnApp ->
+            stringResource(R.string.always_on_vpn_error_notification_title, cause.appName)
+        cause is ErrorStateCause.LegacyLockdown ->
+            stringResource(R.string.legacy_always_on_vpn_error_notification_title)
+        isBlocking -> stringResource(R.string.blocking_internet)
+        else -> stringResource(R.string.critical_error)
     }
+}
+
+@Composable
+private fun ErrorState.message(): String {
+    val cause = this.cause
+    return when {
+        isBlocking -> cause.errorMessageId()
+        else -> stringResource(R.string.failed_to_block_internet)
+    }
+}
+
+@Composable
+private fun ErrorStateCause.errorMessageId(): String =
+    when (this) {
+        is ErrorStateCause.AuthFailed -> stringResource(error.errorMessageId())
+        is ErrorStateCause.Ipv6Unavailable -> stringResource(R.string.ipv6_unavailable)
+        is ErrorStateCause.FirewallPolicyError -> stringResource(R.string.set_firewall_policy_error)
+        is ErrorStateCause.DnsError -> stringResource(R.string.set_dns_error)
+        is ErrorStateCause.StartTunnelError -> stringResource(R.string.start_tunnel_error)
+        is ErrorStateCause.IsOffline -> stringResource(R.string.is_offline)
+        is ErrorStateCause.TunnelParameterError -> stringResource(error.errorMessageId())
+        is ErrorStateCause.NotPrepared ->
+            stringResource(R.string.vpn_permission_error_notification_message)
+        is ErrorStateCause.AlwaysOnApp ->
+            stringResource(R.string.always_on_vpn_error_notification_content, appName)
+        is ErrorStateCause.LegacyLockdown ->
+            stringResource(R.string.legacy_always_on_vpn_error_notification_content)
+        is ErrorStateCause.InvalidDnsServers ->
+            stringResource(
+                R.string.invalid_dns_servers,
+                addresses.joinToString { address -> address.addressString() },
+            )
+    }
+
+private fun AuthFailedError.errorMessageId(): Int =
+    when (this) {
+        AuthFailedError.ExpiredAccount -> R.string.account_credit_has_expired
+        AuthFailedError.InvalidAccount,
+        AuthFailedError.TooManyConnections,
+        AuthFailedError.Unknown -> R.string.auth_failed
+    }
+
+private fun ParameterGenerationError.errorMessageId(): Int =
+    when (this) {
+        ParameterGenerationError.NoMatchingRelay,
+        ParameterGenerationError.NoMatchingBridgeRelay -> {
+            R.string.no_matching_relay
+        }
+        ParameterGenerationError.NoWireguardKey -> R.string.no_wireguard_key
+        ParameterGenerationError.CustomTunnelHostResultionError ->
+            R.string.custom_tunnel_host_resolution_error
+    }
+
+private fun InetAddress.addressString(): String {
+    val hostNameAndAddress = this.toString().split('/', limit = 2)
+    val address = hostNameAndAddress[1]
+
+    return address
+}

android/app/src/main/kotlin/net/mullvad/mullvadvpn/compose/screen/ConnectScreen.kt

@@ -61,7 +61,6 @@ import com.ramcosta.composedestinations.generated.destinations.SettingsDestinati
 import com.ramcosta.composedestinations.navigation.DestinationsNavigator
 import com.ramcosta.composedestinations.result.ResultRecipient
 import kotlinx.coroutines.launch
-import mullvad_daemon.management_interface.tunnelState
 import net.mullvad.mullvadvpn.R
 import net.mullvad.mullvadvpn.compose.button.ConnectionButton
 import net.mullvad.mullvadvpn.compose.button.SwitchLocationButton
@@ -84,8 +83,8 @@ import net.mullvad.mullvadvpn.compose.test.RECONNECT_BUTTON_TEST_TAG
 import net.mullvad.mullvadvpn.compose.test.SELECT_LOCATION_BUTTON_TEST_TAG
 import net.mullvad.mullvadvpn.compose.transitions.HomeTransition
 import net.mullvad.mullvadvpn.compose.util.CollectSideEffectWithLifecycle
+import net.mullvad.mullvadvpn.compose.util.CreateVpnProfile
 import net.mullvad.mullvadvpn.compose.util.OnNavResultValue
-import net.mullvad.mullvadvpn.compose.util.RequestVpnPermission
 import net.mullvad.mullvadvpn.compose.util.showSnackbarImmediately
 import net.mullvad.mullvadvpn.constant.SECURE_ZOOM
 import net.mullvad.mullvadvpn.constant.SECURE_ZOOM_ANIMATION_MILLIS
@@ -100,6 +99,7 @@ import net.mullvad.mullvadvpn.lib.model.GeoIpLocation
 import net.mullvad.mullvadvpn.lib.model.LatLong
 import net.mullvad.mullvadvpn.lib.model.Latitude
 import net.mullvad.mullvadvpn.lib.model.Longitude
+import net.mullvad.mullvadvpn.lib.model.PrepareError
 import net.mullvad.mullvadvpn.lib.model.TunnelState
 import net.mullvad.mullvadvpn.lib.theme.AppTheme
 import net.mullvad.mullvadvpn.lib.theme.Dimens
@@ -142,9 +142,9 @@ fun Connect(
 
     val snackbarHostState = remember { SnackbarHostState() }
 
-    val launchVpnPermission =
-        rememberLauncherForActivityResult(RequestVpnPermission()) {
-            connectViewModel.requestVpnPermissionResult(it)
+    val createVpnProfile =
+        rememberLauncherForActivityResult(CreateVpnProfile()) {
+            connectViewModel.createVpnProfileResult(it)
         }
 
     val openAccountPage = LocalUriHandler.current.createOpenAccountPageHook()
@@ -170,7 +170,24 @@ fun Connect(
                     popUpTo(NavGraphs.root) { inclusive = true }
                 }
 
-            is ConnectViewModel.UiSideEffect.NoVpnPermission -> launchVpnPermission.launch(Unit)
+            is ConnectViewModel.UiSideEffect.NotPrepared ->
+                when (sideEffect.prepareError) {
+                    is PrepareError.LegacyLockdown ->
+                        launch {
+                            snackbarHostState.showSnackbarImmediately(
+                                message = sideEffect.prepareError.toMessage(context)
+                            )
+                        }
+
+                    is PrepareError.OtherAlwaysOnApp ->
+                        launch {
+                            snackbarHostState.showSnackbarImmediately(
+                                message = sideEffect.prepareError.toMessage(context)
+                            )
+                        }
+                    is PrepareError.NotPrepared ->
+                        createVpnProfile.launch(sideEffect.prepareError.prepareIntent)
+                }
             is ConnectViewModel.UiSideEffect.ConnectError ->
                 launch {
                     snackbarHostState.showSnackbarImmediately(
@@ -571,15 +588,17 @@ fun GeoIpLocation.toLatLong() =
 
 private fun ConnectViewModel.UiSideEffect.ConnectError.toMessage(context: Context): String =
     when (this) {
-        ConnectViewModel.UiSideEffect.ConnectError.NoVpnPermission ->
-            context.getString(R.string.vpn_permission_denied_error)
-
-        is ConnectViewModel.UiSideEffect.ConnectError.AlwaysOnVpn ->
-            // Snackbar currently do not support annotated string
-            context
-                .getString(R.string.always_on_vpn_error_notification_content, appName)
-                .removeHtmlTags()
-
         ConnectViewModel.UiSideEffect.ConnectError.Generic ->
             context.getString(R.string.error_occurred)
+
+        ConnectViewModel.UiSideEffect.ConnectError.PermissionDenied ->
+            context.getString(R.string.vpn_permission_denied_error)
     }
+
+private fun PrepareError.LegacyLockdown.toMessage(context: Context) =
+    context
+        .getString(R.string.always_on_vpn_error_notification_content, "Legacy app")
+        .removeHtmlTags()
+
+private fun PrepareError.OtherAlwaysOnApp.toMessage(context: Context) =
+    context.getString(R.string.always_on_vpn_error_notification_content, appName).removeHtmlTags()

android/app/src/main/kotlin/net/mullvad/mullvadvpn/compose/screen/MullvadApp.kt

@@ -7,21 +7,26 @@ import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.ui.ExperimentalComposeUiApi
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.semantics.semantics
 import androidx.compose.ui.semantics.testTagsAsResourceId
 import androidx.navigation.NavHostController
+import arrow.core.merge
 import co.touchlab.kermit.Logger
 import com.ramcosta.composedestinations.DestinationsNavHost
 import com.ramcosta.composedestinations.generated.NavGraphs
 import com.ramcosta.composedestinations.generated.destinations.NoDaemonDestination
 import com.ramcosta.composedestinations.navigation.DestinationsNavigator
 import com.ramcosta.composedestinations.rememberNavHostEngine
 import com.ramcosta.composedestinations.utils.rememberDestinationsNavigator
-import net.mullvad.mullvadvpn.compose.util.RequestVpnPermission
+import net.mullvad.mullvadvpn.compose.util.CreateVpnProfile
+import net.mullvad.mullvadvpn.lib.common.util.prepareVpnSafe
+import net.mullvad.mullvadvpn.lib.model.PrepareError
+import net.mullvad.mullvadvpn.lib.model.Prepared
 import net.mullvad.mullvadvpn.viewmodel.DaemonScreenEvent
 import net.mullvad.mullvadvpn.viewmodel.NoDaemonViewModel
-import net.mullvad.mullvadvpn.viewmodel.VpnPermissionSideEffect
-import net.mullvad.mullvadvpn.viewmodel.VpnPermissionViewModel
+import net.mullvad.mullvadvpn.viewmodel.VpnProfileSideEffect
+import net.mullvad.mullvadvpn.viewmodel.VpnProfileViewModel
 import org.koin.androidx.compose.koinViewModel
 
 @OptIn(ExperimentalComposeUiApi::class)
@@ -32,7 +37,7 @@ fun MullvadApp() {
     val navigator: DestinationsNavigator = navHostController.rememberDestinationsNavigator()
 
     val serviceVm = koinViewModel<NoDaemonViewModel>()
-    val permissionVm = koinViewModel<VpnPermissionViewModel>()
+    val permissionVm = koinViewModel<VpnProfileViewModel>()
 
     DisposableEffect(Unit) {
         navHostController.addOnDestinationChangedListener(serviceVm)
@@ -64,11 +69,20 @@ fun MullvadApp() {
 
     // Ask for VPN Permission
     val launchVpnPermission =
-        rememberLauncherForActivityResult(RequestVpnPermission()) { _ -> permissionVm.connect() }
+        rememberLauncherForActivityResult(CreateVpnProfile()) { _ -> permissionVm.connect() }
+    val context = LocalContext.current
     LaunchedEffect(Unit) {
         permissionVm.uiSideEffect.collect {
-            if (it is VpnPermissionSideEffect.ShowDialog) {
-                launchVpnPermission.launch(Unit)
+            if (it is VpnProfileSideEffect.RequestVpnProfile) {
+                val prepareResult = context.prepareVpnSafe().merge()
+                when (prepareResult) {
+                    is PrepareError.NotPrepared ->
+                        launchVpnPermission.launch(prepareResult.prepareIntent)
+                    // If legacy or other always on connect at let daemon generate a error state
+                    is PrepareError.LegacyLockdown,
+                    is PrepareError.OtherAlwaysOnApp,
+                    Prepared -> permissionVm.connect()
+                }
             }
         }
     }

android/app/src/main/kotlin/net/mullvad/mullvadvpn/compose/util/CreateVpnProfile.kt

@@ -0,0 +1,14 @@
+package net.mullvad.mullvadvpn.compose.util
+
+import android.app.Activity
+import android.content.Context
+import android.content.Intent
+import androidx.activity.result.contract.ActivityResultContract
+
+class CreateVpnProfile : ActivityResultContract<Intent, Boolean>() {
+    override fun createIntent(context: Context, input: Intent): Intent = input
+
+    override fun parseResult(resultCode: Int, intent: Intent?): Boolean {
+        return resultCode == Activity.RESULT_OK
+    }
+}