fix: remove ChallengeResponseViewModel and add HardwareKeyActivity

app/src/main/AndroidManifest.xml

@@ -156,6 +156,8 @@
             android:name="com.kunzisoft.keepass.settings.SettingsAdvancedUnlockActivity" />
         <activity
             android:name="com.kunzisoft.keepass.settings.AutofillSettingsActivity" />
+        <activity
+            android:name="com.kunzisoft.keepass.hardware.HardwareKeyActivity" />
         <activity
             android:name="com.kunzisoft.keepass.activities.EntrySelectionLauncherActivity"
             android:theme="@style/Theme.Transparent"

app/src/main/java/com/kunzisoft/keepass/activities/dialogs/SetMainCredentialDialogFragment.kt

@@ -36,7 +36,7 @@ import com.kunzisoft.keepass.R
 import com.kunzisoft.keepass.activities.helpers.ExternalFileHelper
 import com.kunzisoft.keepass.activities.helpers.setOpenDocumentClickListener
 import com.kunzisoft.keepass.hardware.HardwareKey
-import com.kunzisoft.keepass.hardware.HardwareKeyResponseHelper
+import com.kunzisoft.keepass.hardware.HardwareKeyActivity
 import com.kunzisoft.keepass.database.element.MainCredential
 import com.kunzisoft.keepass.password.PasswordEntropy
 import com.kunzisoft.keepass.utils.UriUtil
@@ -169,7 +169,7 @@ class SetMainCredentialDialogFragment : DatabaseDialogFragment() {
             hardwareKeySelectionView.selectionListener = { hardwareKey ->
                 hardwareKeyCheckBox.isChecked = true
                 hardwareKeySelectionView.error =
-                    if (!HardwareKeyResponseHelper.isHardwareKeyAvailable(requireActivity(), hardwareKey)) {
+                    if (!HardwareKeyActivity.isHardwareKeyAvailable(requireActivity(), hardwareKey)) {
                         // show hardware driver dialog if required
                         getString(R.string.error_driver_required, hardwareKey.toString())
                     } else {
@@ -231,7 +231,7 @@ class SetMainCredentialDialogFragment : DatabaseDialogFragment() {
             showEmptyPasswordConfirmationDialog()
         } else if (!error
             && hardwareKey != null
-            && !HardwareKeyResponseHelper.isHardwareKeyAvailable(
+            && !HardwareKeyActivity.isHardwareKeyAvailable(
                 requireActivity(), hardwareKey, false)
         ) {
             // show hardware driver dialog if required

app/src/main/java/com/kunzisoft/keepass/activities/legacy/DatabaseActivity.kt

@@ -9,7 +9,6 @@ import com.kunzisoft.keepass.database.element.Database
 import com.kunzisoft.keepass.database.element.MainCredential
 import com.kunzisoft.keepass.model.CipherEncryptDatabase
 import com.kunzisoft.keepass.tasks.ActionRunnable
-import com.kunzisoft.keepass.viewmodels.ChallengeResponseViewModel
 import com.kunzisoft.keepass.viewmodels.DatabaseViewModel
 
 abstract class DatabaseActivity: StylishActivity(), DatabaseRetrieval {
@@ -18,12 +17,10 @@ abstract class DatabaseActivity: StylishActivity(), DatabaseRetrieval {
     protected var mDatabaseTaskProvider: DatabaseTaskProvider? = null
     protected var mDatabase: Database? = null
 
-    private val mChallengeResponseViewModel: ChallengeResponseViewModel by viewModels()
-
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
-        mDatabaseTaskProvider = DatabaseTaskProvider(this, mChallengeResponseViewModel)
+        mDatabaseTaskProvider = DatabaseTaskProvider(this)
 
         mDatabaseTaskProvider?.onDatabaseRetrieved = { database ->
             val databaseWasReloaded = database?.wasReloaded == true

app/src/main/java/com/kunzisoft/keepass/database/action/DatabaseTaskProvider.kt

@@ -19,7 +19,6 @@
  */
 package com.kunzisoft.keepass.database.action
 
-import android.app.Service
 import android.content.*
 import android.content.Context.*
 import android.net.Uri
@@ -43,13 +42,13 @@ import com.kunzisoft.keepass.database.element.database.CompressionAlgorithm
 import com.kunzisoft.keepass.database.element.node.Node
 import com.kunzisoft.keepass.database.element.node.NodeId
 import com.kunzisoft.keepass.database.element.node.Type
-import com.kunzisoft.keepass.database.exception.InvalidCredentialsDatabaseException
 import com.kunzisoft.keepass.hardware.HardwareKey
-import com.kunzisoft.keepass.hardware.HardwareKeyResponseHelper
+import com.kunzisoft.keepass.hardware.HardwareKeyActivity
 import com.kunzisoft.keepass.model.CipherEncryptDatabase
 import com.kunzisoft.keepass.model.ProgressMessage
 import com.kunzisoft.keepass.model.SnapFileDatabaseInfo
 import com.kunzisoft.keepass.services.DatabaseTaskNotificationService
+import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.ACTION_CHALLENGE_RESPONDED
 import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.ACTION_DATABASE_ASSIGN_PASSWORD_TASK
 import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.ACTION_DATABASE_COPY_NODES_TASK
 import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.ACTION_DATABASE_CREATE_ENTRY_TASK
@@ -86,7 +85,6 @@ import com.kunzisoft.keepass.tasks.ProgressTaskDialogFragment
 import com.kunzisoft.keepass.tasks.ProgressTaskDialogFragment.Companion.PROGRESS_TASK_DIALOG_TAG
 import com.kunzisoft.keepass.utils.DATABASE_START_TASK_ACTION
 import com.kunzisoft.keepass.utils.DATABASE_STOP_TASK_ACTION
-import com.kunzisoft.keepass.viewmodels.ChallengeResponseViewModel
 import kotlinx.coroutines.launch
 import java.util.*
 
@@ -94,10 +92,11 @@ import java.util.*
  * Utility class to connect an activity or a service to the DatabaseTaskNotificationService,
  * Useful to retrieve a database instance and sending tasks commands
  */
-class DatabaseTaskProvider {
+class DatabaseTaskProvider(private var context: Context) {
 
-    private var activity: FragmentActivity? = null
+    // To show dialog only if context is an activity
-    private var context: Context
+    private var activity: FragmentActivity? = try { context as? FragmentActivity? }
+        catch (_: Exception) { null }
 
     var onDatabaseRetrieved: ((database: Database?) -> Unit)? = null
 
@@ -105,7 +104,10 @@ class DatabaseTaskProvider {
                           actionTask: String,
                           result: ActionRunnable.Result) -> Unit)? = null
 
-    private var intentDatabaseTask: Intent
+    private var intentDatabaseTask: Intent = Intent(
+        context.applicationContext,
+        DatabaseTaskNotificationService::class.java
+    )
 
     private var databaseTaskBroadcastReceiver: BroadcastReceiver? = null
     private var mBinder: DatabaseTaskNotificationService.ActionTaskBinder? = null
@@ -115,54 +117,6 @@ class DatabaseTaskProvider {
     private var progressTaskDialogFragment: ProgressTaskDialogFragment? = null
     private var databaseChangedDialogFragment: DatabaseChangedDialogFragment? = null
 
-    private var mChallengeResponseViewModel: ChallengeResponseViewModel? = null
-
-    constructor(activity: FragmentActivity,
-                challengeResponseViewModel: ChallengeResponseViewModel) {
-        this.activity = activity
-        this.context = activity
-        this.intentDatabaseTask = Intent(activity.applicationContext,
-            DatabaseTaskNotificationService::class.java)
-
-        // ViewModel used to keep response if activity recreated
-        this.mChallengeResponseViewModel = challengeResponseViewModel
-        // To manage hardware key challenge response
-        val hardwareKeyResponseHelper = HardwareKeyResponseHelper(activity)
-        hardwareKeyResponseHelper.buildHardwareKeyResponse { responseData, _ ->
-            // TODO Verify database
-            // Send to view model in case activity is restarted and not yet connected to service
-            challengeResponseViewModel.respond(responseData ?: ByteArray(0))
-        }
-        challengeResponseViewModel.dataResponded.observe(activity) { response ->
-            // Consume the response
-            if (response != null) {
-                val binder = mBinder
-                if (binder != null) {
-                    binder.getService().respondToChallenge(response)
-                    challengeResponseViewModel.consumeResponse()
-                }
-            }
-        }
-
-        this.requestChallengeListener = object: DatabaseTaskNotificationService.RequestChallengeListener {
-            override fun onChallengeResponseRequested(hardwareKey: HardwareKey, seed: ByteArray?) {
-                if (HardwareKeyResponseHelper.isHardwareKeyAvailable(activity, hardwareKey)) {
-                    hardwareKeyResponseHelper.launchChallengeForResponse(hardwareKey, seed)
-                } else {
-                    throw InvalidCredentialsDatabaseException(
-                        context.getString(R.string.error_driver_required, hardwareKey.toString())
-                    )
-                }
-            }
-        }
-    }
-
-    constructor(service: Service) {
-        this.context = service
-        this.intentDatabaseTask = Intent(service.applicationContext,
-            DatabaseTaskNotificationService::class.java)
-    }
-
     fun destroy() {
         this.activity = null
         this.onDatabaseRetrieved = null
@@ -172,7 +126,6 @@ class DatabaseTaskProvider {
         this.serviceConnection = null
         this.progressTaskDialogFragment = null
         this.databaseChangedDialogFragment = null
-        this.mChallengeResponseViewModel = null
     }
 
     private val actionTaskListener = object: DatabaseTaskNotificationService.ActionTaskListener {
@@ -235,7 +188,19 @@ class DatabaseTaskProvider {
         }
     }
 
-    private var requestChallengeListener: DatabaseTaskNotificationService.RequestChallengeListener? = null
+    private var requestChallengeListener = object: DatabaseTaskNotificationService.RequestChallengeListener {
+        override fun onChallengeResponseRequested(
+            hardwareKey: HardwareKey,
+            seed: ByteArray?
+        ) {
+            HardwareKeyActivity
+                .launchHardwareKeyActivity(
+                    context,
+                    hardwareKey,
+                    seed
+                )
+        }
+    }
 
     private fun startDialog(progressMessage: ProgressMessage) {
         activity?.let { activity ->
@@ -280,7 +245,6 @@ class DatabaseTaskProvider {
                         getService().checkDatabaseInfo()
                         getService().checkAction()
                     }
-                    mChallengeResponseViewModel?.resendResponse()
                 }
 
                 override fun onServiceDisconnected(name: ComponentName?) {
@@ -295,9 +259,7 @@ class DatabaseTaskProvider {
         service?.addDatabaseListener(databaseListener)
         service?.addDatabaseFileInfoListener(databaseInfoListener)
         service?.addActionTaskListener(actionTaskListener)
-        requestChallengeListener?.let {
+        service?.setRequestChallengeListener(requestChallengeListener)
-            service?.addRequestChallengeListener(it)
-        }
     }
 
     private fun removeServiceListeners(service: DatabaseTaskNotificationService.ActionTaskBinder?) {
@@ -762,6 +724,13 @@ class DatabaseTaskProvider {
                 , ACTION_DATABASE_SAVE)
     }
 
+    fun startChallengeResponded(response: ByteArray?) {
+        start(Bundle().apply {
+            putByteArray(DatabaseTaskNotificationService.DATA_BYTES, response)
+        }
+                , ACTION_CHALLENGE_RESPONDED)
+    }
+
     companion object {
         private val TAG = DatabaseTaskProvider::class.java.name
     }

app/src/main/java/com/kunzisoft/keepass/hardware/HardwareKeyActivity.kt

@@ -0,0 +1,150 @@
+package com.kunzisoft.keepass.hardware
+
+import android.app.Activity
+import android.content.Context
+import android.content.Intent
+import android.util.Log
+import androidx.activity.result.ActivityResult
+import androidx.activity.result.ActivityResultCallback
+import androidx.activity.result.ActivityResultLauncher
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.appcompat.app.AlertDialog
+import com.kunzisoft.keepass.R
+import com.kunzisoft.keepass.activities.legacy.DatabaseActivity
+import com.kunzisoft.keepass.database.element.Database
+import com.kunzisoft.keepass.utils.UriUtil
+
+/**
+ * Special activity to deal with hardware key drivers,
+ * return the response to the database service once finished
+ */
+class HardwareKeyActivity: DatabaseActivity(){
+
+    // To manage hardware key challenge response
+    private val resultCallback = ActivityResultCallback<ActivityResult> { result ->
+        if (result.resultCode == Activity.RESULT_OK) {
+            val challengeResponse: ByteArray? = result.data?.getByteArrayExtra(HARDWARE_KEY_RESPONSE_KEY)
+            Log.d(TAG, "Response form challenge")
+            mDatabaseTaskProvider?.startChallengeResponded(challengeResponse ?: ByteArray(0))
+        } else {
+            Log.e(TAG, "Response from challenge error")
+            mDatabaseTaskProvider?.startChallengeResponded(ByteArray(0))
+        }
+        finish()
+    }
+
+    private var activityResultLauncher: ActivityResultLauncher<Intent> = registerForActivityResult(
+        ActivityResultContracts.StartActivityForResult(),
+        resultCallback
+    )
+
+    override fun onDatabaseRetrieved(database: Database?) {
+        super.onDatabaseRetrieved(database)
+
+        val hardwareKey = HardwareKey.getHardwareKeyFromString(
+            intent.getStringExtra(DATA_HARDWARE_KEY)
+        )
+        if (isHardwareKeyAvailable(this, hardwareKey)) {
+            when (hardwareKey) {
+                /*
+                HardwareKey.FIDO2_SECRET -> {
+                    // TODO FIDO2 under development
+                    throw Exception("FIDO2 not implemented")
+                }
+                */
+                HardwareKey.CHALLENGE_RESPONSE_YUBIKEY -> {
+                    launchYubikeyChallengeForResponse(intent.getByteArrayExtra(DATA_SEED))
+                }
+                else -> {
+                    finish()
+                }
+            }
+        } else {
+            finish()
+        }
+    }
+
+    private fun launchYubikeyChallengeForResponse(seed: ByteArray?) {
+        // Transform the seed before sending
+        var challenge: ByteArray? = null
+        if (seed != null) {
+            challenge = ByteArray(64)
+            seed.copyInto(challenge, 0, 0, 32)
+            challenge.fill(32, 32, 64)
+        }
+        // Send to the driver
+        activityResultLauncher.launch(
+            Intent(YUBIKEY_CHALLENGE_RESPONSE_INTENT).apply {
+                putExtra(HARDWARE_KEY_CHALLENGE_KEY, challenge)
+            }
+        )
+        Log.d(TAG, "Challenge sent")
+    }
+
+    companion object {
+        private val TAG = HardwareKeyActivity::class.java.simpleName
+
+        private const val DATA_HARDWARE_KEY = "DATA_HARDWARE_KEY"
+        private const val DATA_SEED = "DATA_SEED"
+        private const val YUBIKEY_CHALLENGE_RESPONSE_INTENT = "android.yubikey.intent.action.CHALLENGE_RESPONSE"
+        private const val HARDWARE_KEY_CHALLENGE_KEY = "challenge"
+        private const val HARDWARE_KEY_RESPONSE_KEY = "response"
+
+        fun launchHardwareKeyActivity(
+            context: Context,
+            hardwareKey: HardwareKey,
+            seed: ByteArray?
+        ) {
+            context.startActivity(Intent(context, HardwareKeyActivity::class.java).apply {
+                //flags = FLAG_ACTIVITY_NEW_TASK
+                putExtra(DATA_HARDWARE_KEY, hardwareKey.value)
+                putExtra(DATA_SEED, seed)
+            })
+        }
+
+        fun isHardwareKeyAvailable(
+            context: Context,
+            hardwareKey: HardwareKey?,
+            showDialog: Boolean = true
+        ): Boolean {
+            if (hardwareKey == null)
+                return false
+            return when (hardwareKey) {
+                /*
+                HardwareKey.FIDO2_SECRET -> {
+                    // TODO FIDO2 under development
+                    if (showDialog)
+                        UnderDevelopmentFeatureDialogFragment()
+                            .show(activity.supportFragmentManager, "underDevFeatureDialog")
+                    false
+                }
+                */
+                HardwareKey.CHALLENGE_RESPONSE_YUBIKEY -> {
+                    // Check available intent
+                    val yubikeyDriverAvailable =
+                        Intent(YUBIKEY_CHALLENGE_RESPONSE_INTENT)
+                            .resolveActivity(context.packageManager) != null
+                    if (showDialog && !yubikeyDriverAvailable)
+                        showHardwareKeyDriverNeeded(context, hardwareKey)
+                    yubikeyDriverAvailable
+                }
+            }
+        }
+
+        private fun showHardwareKeyDriverNeeded(
+            context: Context,
+            hardwareKey: HardwareKey
+        ) {
+            val builder = AlertDialog.Builder(context)
+            builder
+                .setMessage(
+                    context.getString(R.string.error_driver_required, hardwareKey.toString())
+                )
+                .setPositiveButton(R.string.download) { _, _ ->
+                    UriUtil.openExternalApp(context, context.getString(R.string.key_driver_app_id))
+                }
+                .setNegativeButton(android.R.string.cancel) { _, _ -> }
+            builder.create().show()
+        }
+    }
+}

app/src/main/java/com/kunzisoft/keepass/hardware/HardwareKeyResponseHelper.kt

@@ -1,144 +0,0 @@
-package com.kunzisoft.keepass.hardware
-
-import android.app.Activity
-import android.content.Intent
-import android.os.Bundle
-import android.util.Log
-import androidx.activity.result.ActivityResult
-import androidx.activity.result.ActivityResultCallback
-import androidx.activity.result.ActivityResultLauncher
-import androidx.activity.result.contract.ActivityResultContracts
-import androidx.appcompat.app.AlertDialog
-import androidx.fragment.app.Fragment
-import androidx.fragment.app.FragmentActivity
-import androidx.lifecycle.lifecycleScope
-import com.kunzisoft.keepass.R
-import com.kunzisoft.keepass.utils.UriUtil
-import kotlinx.coroutines.launch
-
-class HardwareKeyResponseHelper {
-
-    private var activity: FragmentActivity? = null
-    private var fragment: Fragment? = null
-
-    private var getChallengeResponseResultLauncher: ActivityResultLauncher<Intent>? = null
-
-    constructor(context: FragmentActivity) {
-        this.activity = context
-        this.fragment = null
-    }
-
-    constructor(context: Fragment) {
-        this.activity = context.activity
-        this.fragment = context
-    }
-
-    fun buildHardwareKeyResponse(onChallengeResponded: (challengeResponse: ByteArray?,
-                                                        extra: Bundle?) -> Unit) {
-        val resultCallback = ActivityResultCallback<ActivityResult> { result ->
-            if (result.resultCode == Activity.RESULT_OK) {
-                val challengeResponse: ByteArray? = result.data?.getByteArrayExtra(HARDWARE_KEY_RESPONSE_KEY)
-                Log.d(TAG, "Response form challenge")
-                onChallengeResponded.invoke(challengeResponse,
-                    result.data?.getBundleExtra(EXTRA_BUNDLE_KEY))
-            } else {
-                Log.e(TAG, "Response from challenge error")
-                onChallengeResponded.invoke(null,
-                    result.data?.getBundleExtra(EXTRA_BUNDLE_KEY))
-            }
-        }
-
-        getChallengeResponseResultLauncher = if (fragment != null) {
-            fragment?.registerForActivityResult(
-                ActivityResultContracts.StartActivityForResult(),
-                resultCallback
-            )
-        } else {
-            activity?.registerForActivityResult(
-                ActivityResultContracts.StartActivityForResult(),
-                resultCallback
-            )
-        }
-    }
-
-    fun launchChallengeForResponse(hardwareKey: HardwareKey, seed: ByteArray?) {
-        when (hardwareKey) {
-            /*
-            HardwareKey.FIDO2_SECRET -> {
-                // TODO FIDO2 under development
-                throw Exception("FIDO2 not implemented")
-            }
-            */
-            HardwareKey.CHALLENGE_RESPONSE_YUBIKEY -> {
-                // Transform the seed before sending
-                var challenge: ByteArray? = null
-                if (seed != null) {
-                    challenge = ByteArray(64)
-                    seed.copyInto(challenge, 0, 0, 32)
-                    challenge.fill(32, 32, 64)
-                }
-                // Send to the driver
-                getChallengeResponseResultLauncher!!.launch(
-                    Intent(YUBIKEY_CHALLENGE_RESPONSE_INTENT).apply {
-                        putExtra(HARDWARE_KEY_CHALLENGE_KEY, challenge)
-                    }
-                )
-                Log.d(TAG, "Challenge sent")
-            }
-        }
-    }
-
-    companion object {
-        private val TAG = HardwareKeyResponseHelper::class.java.simpleName
-
-        private const val YUBIKEY_CHALLENGE_RESPONSE_INTENT = "android.yubikey.intent.action.CHALLENGE_RESPONSE"
-        private const val HARDWARE_KEY_CHALLENGE_KEY = "challenge"
-        private const val HARDWARE_KEY_RESPONSE_KEY = "response"
-        private const val EXTRA_BUNDLE_KEY = "EXTRA_BUNDLE_KEY"
-
-        fun isHardwareKeyAvailable(
-            activity: FragmentActivity,
-            hardwareKey: HardwareKey,
-            showDialog: Boolean = true
-        ): Boolean {
-            return when (hardwareKey) {
-                /*
-                HardwareKey.FIDO2_SECRET -> {
-                    // TODO FIDO2 under development
-                    if (showDialog)
-                        UnderDevelopmentFeatureDialogFragment()
-                            .show(activity.supportFragmentManager, "underDevFeatureDialog")
-                    false
-                }
-                */
-                HardwareKey.CHALLENGE_RESPONSE_YUBIKEY -> {
-                    // Check available intent
-                    val yubikeyDriverAvailable =
-                        Intent(YUBIKEY_CHALLENGE_RESPONSE_INTENT)
-                            .resolveActivity(activity.packageManager) != null
-                    if (showDialog && !yubikeyDriverAvailable)
-                        showHardwareKeyDriverNeeded(activity, hardwareKey)
-                    yubikeyDriverAvailable
-                }
-            }
-        }
-
-        private fun showHardwareKeyDriverNeeded(
-            activity: FragmentActivity,
-            hardwareKey: HardwareKey
-        ) {
-            activity.lifecycleScope.launch {
-                val builder = AlertDialog.Builder(activity)
-                builder
-                    .setMessage(
-                        activity.getString(R.string.error_driver_required, hardwareKey.toString())
-                    )
-                    .setPositiveButton(R.string.download) { _, _ ->
-                        UriUtil.openExternalApp(activity, activity.getString(R.string.key_driver_app_id))
-                    }
-                    .setNegativeButton(android.R.string.cancel) { _, _ -> }
-                builder.create().show()
-            }
-        }
-    }
-}

app/src/main/java/com/kunzisoft/keepass/services/DatabaseTaskNotificationService.kt

@@ -124,8 +124,8 @@ open class DatabaseTaskNotificationService : LockNotificationService(), Progress
             mActionTaskListeners.remove(actionTaskListener)
         }
 
-        @ExperimentalCoroutinesApi
+        @OptIn(ExperimentalCoroutinesApi::class)
-        fun addRequestChallengeListener(requestChallengeListener: RequestChallengeListener) {
+        fun setRequestChallengeListener(requestChallengeListener: RequestChallengeListener) {
             mainScope.launch {
                 val requestChannel = mRequestChallengeListenerChannel
                 if (requestChannel == null || requestChannel.isEmpty) {
@@ -169,7 +169,10 @@ open class DatabaseTaskNotificationService : LockNotificationService(), Progress
     }
 
     interface RequestChallengeListener {
-        fun onChallengeResponseRequested(hardwareKey: HardwareKey, seed: ByteArray?)
+        fun onChallengeResponseRequested(
+            hardwareKey: HardwareKey,
+            seed: ByteArray?
+        )
     }
 
     fun checkDatabase() {
@@ -270,8 +273,8 @@ open class DatabaseTaskNotificationService : LockNotificationService(), Progress
         mResponseChallengeChannel = null
     }
 
-    @ExperimentalCoroutinesApi
+    @OptIn(ExperimentalCoroutinesApi::class)
-    fun respondToChallenge(response: ByteArray) {
+    private fun respondToChallenge(response: ByteArray) {
         mainScope.launch {
             val responseChannel = mResponseChallengeChannel
             if (responseChannel == null || responseChannel.isEmpty) {
@@ -323,6 +326,12 @@ open class DatabaseTaskNotificationService : LockNotificationService(), Progress
             stopSelf()
         }
 
+        if (intentAction == ACTION_CHALLENGE_RESPONDED) {
+            intent.getByteArrayExtra(DATA_BYTES)?.let {
+                respondToChallenge(it)
+            }
+        }
+
         val actionRunnable: ActionRunnable? =  when (intentAction) {
             ACTION_DATABASE_CREATE_TASK -> buildDatabaseCreateActionTask(intent, database)
             ACTION_DATABASE_LOAD_TASK -> buildDatabaseLoadActionTask(intent, database)
@@ -756,7 +765,6 @@ open class DatabaseTaskNotificationService : LockNotificationService(), Progress
             databaseToMergeUri,
             databaseToMergeMainCredential,
             { hardwareKey, seed ->
-                // TODO fix first challenge response
                 retrieveResponseFromChallenge(hardwareKey, seed)
             },
             database,
@@ -1157,6 +1165,7 @@ open class DatabaseTaskNotificationService : LockNotificationService(), Progress
         const val ACTION_DATABASE_UPDATE_PARALLELISM_TASK = "ACTION_DATABASE_UPDATE_PARALLELISM_TASK"
         const val ACTION_DATABASE_UPDATE_ITERATIONS_TASK = "ACTION_DATABASE_UPDATE_ITERATIONS_TASK"
         const val ACTION_DATABASE_SAVE = "ACTION_DATABASE_SAVE"
+        const val ACTION_CHALLENGE_RESPONDED = "ACTION_CHALLENGE_RESPONDED"
 
         const val DATABASE_TASK_TITLE_KEY = "DATABASE_TASK_TITLE_KEY"
         const val DATABASE_TASK_MESSAGE_KEY = "DATABASE_TASK_MESSAGE_KEY"
@@ -1180,6 +1189,7 @@ open class DatabaseTaskNotificationService : LockNotificationService(), Progress
         const val NEW_NODES_KEY = "NEW_NODES_KEY"
         const val OLD_ELEMENT_KEY = "OLD_ELEMENT_KEY" // Warning type of this thing change every time
         const val NEW_ELEMENT_KEY = "NEW_ELEMENT_KEY" // Warning type of this thing change every time
+        const val DATA_BYTES = "DATA_BYTES"
 
         fun getListNodesFromBundle(database: Database, bundle: Bundle): List<Node> {
             val nodesAction = ArrayList<Node>()

app/src/main/java/com/kunzisoft/keepass/viewmodels/ChallengeResponseViewModel.kt

@@ -1,25 +0,0 @@
-package com.kunzisoft.keepass.viewmodels
-
-import androidx.lifecycle.LiveData
-import androidx.lifecycle.MutableLiveData
-import androidx.lifecycle.ViewModel
-
-class ChallengeResponseViewModel: ViewModel() {
-
-    val dataResponded : LiveData<ByteArray?> get() = _dataResponded
-    private val _dataResponded = MutableLiveData<ByteArray?>()
-
-    fun respond(byteArray: ByteArray) {
-        _dataResponded.value = byteArray
-    }
-
-    fun resendResponse() {
-        dataResponded.value?.let {
-            _dataResponded.value = it
-        }
-    }
-
-    fun consumeResponse() {
-        _dataResponded.value = null
-    }
-}