Merge branch 'release/3.3.0'

Currently translated at 100.0% (592 of 592 strings)

Translation: KeePassDX/Strings
Translate-URL: https://hosted.weblate.org/projects/keepass-dx/strings/tr/

.github/ISSUE_TEMPLATE/bug_report.md

@@ -24,6 +24,7 @@ A clear and concise description of what you expected to happen.
  - Created with: [e.g Windows KeePass 2.42]
  - Version: [e.g. 2]
  - Location: [e.g. Remote file retrieved with GDrive app]
+ - File provider (`content://` URI): [e.g. `content://com.google.android.apps.docs.storage/5`]
  - Size: [e.g. 150Mo]
  - Contains attachment: [e.g. Yes]
 

CHANGELOG

@@ -1,3 +1,38 @@
+KeePassDX(3.3.0)
+ * Quick search and dynamic filters #163 #462 #521
+ * Keep search context #1141
+ * Add searchable groups #905 #1006
+ * Search with regular expression #175
+ * Merge from file and save as copy #1221 #1204 #840
+ * Fix custom data #1236
+ * Fix education hints #1192
+ * Fix save and app instance in selection mode
+ * New UI and fix styles
+ * Add "Simple" and "Reply" themes
+
+KeePassDX(3.2.0)
+ * Manage data merge #840 #977
+ * Manage Tags #633
+ * Inherit colors and icon from template #1213 #1130
+ * Entry colors setting #1207
+ * Setting to keep the screen on when watching the entry #1119
+ * Add path in quick search
+ * Small fixes
+
+KeePassDX(3.1.0)
+ * Add breadcrumb
+ * Add path in search results #1148
+ * Add group info dialog #1177
+ * Manage colors #64 #913
+ * Fix UI in Android 8 #509
+ * Upgrade libs and SDK to 31 #833
+ * Fix parser of database v1 #1201
+ * Stop asking WRITE_EXTERNAL_STORAGE permission
+
+KeePassDX(3.0.4)
+ * Fix autofill inline bugs #1173 #1165
+ * Small UI change
+
 KeePassDX(3.0.3)
  * Change default Argon2 parameters #1098
  * Add & edit custom icon name #976

README.md

@@ -43,7 +43,7 @@ Optional visual styles are accessible after a contribution (and a congratulatory
 
 * Add features by making a **[pull request](https://help.github.com/articles/about-pull-requests/)**.
 * Help to **[translate](https://hosted.weblate.org/projects/keepass-dx/strings/)** KeePassDX to your language (on [Weblate](https://hosted.weblate.org/projects/keepass-dx/) or by sending a [pull request](https://help.github.com/articles/about-pull-requests/)).
-* **[Donate](https://www.kunzisoft.com/donation)**  人◕ ‿‿ ◕人Y for a better service and a quick development of your features.
+* **[Donate](https://www.keepassdx.com/#donation)**  人◕ ‿‿ ◕人Y for a better service and a quick development of your features.
 * Buy the **[Pro version](https://play.google.com/store/apps/details?id=com.kunzisoft.keepass.pro)** of KeePassDX.
 
 ## Download
@@ -72,7 +72,7 @@ Other questions? You can read the [FAQ](https://github.com/Kunzisoft/KeePassDX/w
 
 ## License
 
-  Copyright © 2020 Jeremy Jamet / [Kunzisoft](https://www.kunzisoft.com).
+  Copyright © 2022 Jeremy Jamet / [Kunzisoft](https://www.kunzisoft.com).
 
   This file is part of KeePassDX.
 

app/build.gradle

@@ -1,18 +1,19 @@
 apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-parcelize'
 apply plugin: 'kotlin-kapt'
 
 android {
-    compileSdkVersion 30
-    buildToolsVersion "30.0.3"
+    compileSdkVersion 31
+    buildToolsVersion "31.0.0"
     ndkVersion "21.4.7075529"
 
     defaultConfig {
         applicationId "com.kunzisoft.keepass"
         minSdkVersion 15
-        targetSdkVersion 30
-        versionCode = 90
-        versionName = "3.0.3"
+        targetSdkVersion 31
+        versionCode = 102
+        versionName = "3.3.0"
         multiDexEnabled true
 
         testApplicationId = "com.kunzisoft.keepass.tests"
@@ -68,10 +69,14 @@ android {
             buildConfigField "boolean", "FULL_VERSION", "false"
             buildConfigField "boolean", "CLOSED_STORE", "true"
             buildConfigField "String[]", "STYLES_DISABLED",
-                            "{\"KeepassDXStyle_Blue\"," +
+                            "{\"KeepassDXStyle_Simple\"," +
+                            "\"KeepassDXStyle_Simple_Night\"," +
+                            "\"KeepassDXStyle_Blue\"," +
                             "\"KeepassDXStyle_Blue_Night\"," +
                             "\"KeepassDXStyle_Red\"," +
                             "\"KeepassDXStyle_Red_Night\"," +
+                            "\"KeepassDXStyle_Reply\"," +
+                            "\"KeepassDXStyle_Reply_Night\"," +
                             "\"KeepassDXStyle_Purple\"," +
                             "\"KeepassDXStyle_Purple_Dark\"}"
             buildConfigField "String[]", "ICON_PACKS_DISABLED", "{}"
@@ -99,22 +104,26 @@ android {
     }
 }
 
-def room_version = "2.3.0"
+def room_version = "2.4.1"
 
 dependencies {
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
+    implementation "com.android.support:multidex:1.0.3"
     implementation "androidx.appcompat:appcompat:$android_appcompat_version"
-    implementation 'androidx.preference:preference-ktx:1.1.1'
+    implementation 'androidx.preference:preference-ktx:1.2.0'
     implementation 'androidx.cardview:cardview:1.0.0'
-    implementation 'androidx.constraintlayout:constraintlayout:2.1.2'
+    implementation 'androidx.constraintlayout:constraintlayout:2.1.3'
     implementation 'androidx.viewpager2:viewpager2:1.1.0-beta01'
     implementation 'androidx.documentfile:documentfile:1.0.1'
     implementation 'androidx.biometric:biometric:1.1.0'
-    implementation 'androidx.media:media:1.4.3'
+    implementation 'androidx.media:media:1.5.0'
     // Lifecycle - LiveData - ViewModel - Coroutines
     implementation "androidx.core:core-ktx:$android_core_version"
-    implementation 'androidx.fragment:fragment-ktx:1.3.6'
+    implementation 'androidx.fragment:fragment-ktx:1.4.1'
     implementation "com.google.android.material:material:$android_material_version"
+    // Token auto complete
+    // From sources until https://github.com/splitwise/TokenAutoComplete/pull/422 fixed
+    // implementation "com.splitwise:tokenautocomplete:4.0.0-beta04"
     // Database
     implementation "androidx.room:room-runtime:$room_version"
     kapt "androidx.room:room-compiler:$room_version"
@@ -123,7 +132,7 @@ dependencies {
     // Time
     implementation 'joda-time:joda-time:2.10.13'
     // Color
-    implementation 'com.github.Kunzisoft:AndroidClearChroma:2.4'
+    implementation 'com.github.Kunzisoft:AndroidClearChroma:2.6'
     // Education
     implementation 'com.getkeepsafe.taptargetview:taptargetview:1.13.3'
     // Apache Commons

app/src/main/AndroidManifest.xml

@@ -10,15 +10,12 @@
       android:anyDensity="true" />
     <uses-permission
         android:name="android.permission.FOREGROUND_SERVICE" />
+    <uses-permission
+        android:name="android.permission.SCHEDULE_EXACT_ALARM" />
     <uses-permission
         android:name="android.permission.USE_BIOMETRIC" />
     <uses-permission
         android:name="android.permission.VIBRATE"/>
-    <!-- Write permission until Android 10 -->
-    <uses-permission
-        android:name="android.permission.WRITE_EXTERNAL_STORAGE"
-        android:maxSdkVersion="28"
-        tools:ignore="ScopedStorage" />
     <!-- Open apps from links -->
     <uses-permission
         android:name="android.permission.QUERY_ALL_PACKAGES"
@@ -30,19 +27,19 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:name="com.kunzisoft.keepass.app.App"
         android:allowBackup="true"
-        android:fullBackupContent="@xml/backup_rules"
+        android:fullBackupContent="@xml/old_backup_rules"
+        android:dataExtractionRules="@xml/backup_rules"
         android:backupAgent="com.kunzisoft.keepass.backup.SettingsBackupAgent"
         android:largeHeap="true"
         android:resizeableActivity="true"
         android:theme="@style/KeepassDXStyle.Night"
-        tools:targetApi="n">
+        tools:targetApi="s">
         <meta-data
             android:name="com.google.android.backup.api_key"
             android:value="${googleAndroidBackupAPIKey}" />
         <activity
             android:name="com.kunzisoft.keepass.activities.FileDatabaseSelectActivity"
             android:theme="@style/KeepassDXStyle.SplashScreen"
-            android:label="@string/app_name"
             android:launchMode="singleTop"
             android:exported="true"
             android:configChanges="keyboardHidden"
@@ -53,7 +50,7 @@
             </intent-filter>
         </activity>
         <activity
-            android:name="com.kunzisoft.keepass.activities.PasswordActivity"
+            android:name="com.kunzisoft.keepass.activities.MainCredentialActivity"
             android:exported="true"
             android:configChanges="keyboardHidden"
             android:windowSoftInputMode="adjustResize|stateUnchanged">

app/src/main/java/com/kunzisoft/keepass/activities/AutofillLauncherActivity.kt

@@ -24,7 +24,7 @@ import android.app.PendingIntent
 import android.content.Context
 import android.content.Intent
 import android.os.Build
-import android.view.inputmethod.InlineSuggestionsRequest
+import android.os.Bundle
 import android.widget.Toast
 import androidx.activity.result.ActivityResultLauncher
 import androidx.annotation.RequiresApi
@@ -32,8 +32,9 @@ import com.kunzisoft.keepass.R
 import com.kunzisoft.keepass.activities.helpers.EntrySelectionHelper
 import com.kunzisoft.keepass.activities.helpers.SpecialMode
 import com.kunzisoft.keepass.activities.legacy.DatabaseModeActivity
+import com.kunzisoft.keepass.autofill.AutofillComponent
 import com.kunzisoft.keepass.autofill.AutofillHelper
-import com.kunzisoft.keepass.autofill.AutofillHelper.EXTRA_INLINE_SUGGESTIONS_REQUEST
+import com.kunzisoft.keepass.autofill.CompatInlineSuggestionsRequest
 import com.kunzisoft.keepass.autofill.KeeAutofillService
 import com.kunzisoft.keepass.database.element.Database
 import com.kunzisoft.keepass.database.search.SearchHelper
@@ -64,18 +65,38 @@ class AutofillLauncherActivity : DatabaseModeActivity() {
         EntrySelectionHelper.retrieveSpecialModeFromIntent(intent).let { specialMode ->
             when (specialMode) {
                 SpecialMode.SELECTION -> {
+                    intent.getBundleExtra(KEY_SELECTION_BUNDLE)?.let { bundle ->
+                        // To pass extra inline request
+                        var compatInlineSuggestionsRequest: CompatInlineSuggestionsRequest? = null
+                        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+                            compatInlineSuggestionsRequest = bundle.getParcelable(KEY_INLINE_SUGGESTION)
+                        }
                         // Build search param
-                    val searchInfo = SearchInfo().apply {
-                        applicationId = intent.getStringExtra(KEY_SEARCH_APPLICATION_ID)
-                        webDomain = intent.getStringExtra(KEY_SEARCH_DOMAIN)
-                        webScheme = intent.getStringExtra(KEY_SEARCH_SCHEME)
-                        manualSelection = intent.getBooleanExtra(KEY_MANUAL_SELECTION, false)
+                        bundle.getParcelable<SearchInfo>(KEY_SEARCH_INFO)?.let { searchInfo ->
+                            SearchInfo.getConcreteWebDomain(
+                                this,
+                                searchInfo.webDomain
+                            ) { concreteWebDomain ->
+                                // Pass extra for Autofill (EXTRA_ASSIST_STRUCTURE)
+                                val assistStructure = AutofillHelper
+                                    .retrieveAutofillComponent(intent)
+                                    ?.assistStructure
+                                val newAutofillComponent = if (assistStructure != null) {
+                                    AutofillComponent(
+                                        assistStructure,
+                                        compatInlineSuggestionsRequest
+                                    )
+                                } else {
+                                    null
                                 }
-                    SearchInfo.getConcreteWebDomain(this, searchInfo.webDomain) { concreteWebDomain ->
                                 searchInfo.webDomain = concreteWebDomain
-                        launchSelection(database, searchInfo)
+                                launchSelection(database, newAutofillComponent, searchInfo)
                             }
                         }
+                    }
+                    // Remove bundle
+                    intent.removeExtra(KEY_SELECTION_BUNDLE)
+                }
                 SpecialMode.REGISTRATION -> {
                     // To register info
                     val registerInfo = intent.getParcelableExtra<RegisterInfo>(KEY_REGISTER_INFO)
@@ -95,10 +116,8 @@ class AutofillLauncherActivity : DatabaseModeActivity() {
     }
 
     private fun launchSelection(database: Database?,
+                                autofillComponent: AutofillComponent?,
                                 searchInfo: SearchInfo) {
-        // Pass extra for Autofill (EXTRA_ASSIST_STRUCTURE)
-        val autofillComponent = AutofillHelper.retrieveAutofillComponent(intent)
-
         if (autofillComponent == null) {
             setResult(Activity.RESULT_CANCELED)
             finish()
@@ -194,34 +213,28 @@ class AutofillLauncherActivity : DatabaseModeActivity() {
 
     companion object {
 
-        private const val KEY_MANUAL_SELECTION = "KEY_MANUAL_SELECTION"
-        private const val KEY_SEARCH_APPLICATION_ID = "KEY_SEARCH_APPLICATION_ID"
-        private const val KEY_SEARCH_DOMAIN = "KEY_SEARCH_DOMAIN"
-        private const val KEY_SEARCH_SCHEME = "KEY_SEARCH_SCHEME"
+        private const val KEY_SELECTION_BUNDLE = "KEY_SELECTION_BUNDLE"
+        private const val KEY_SEARCH_INFO = "KEY_SEARCH_INFO"
+        private const val KEY_INLINE_SUGGESTION = "KEY_INLINE_SUGGESTION"
 
         private const val KEY_REGISTER_INFO = "KEY_REGISTER_INFO"
 
         fun getPendingIntentForSelection(context: Context,
                                          searchInfo: SearchInfo? = null,
-                                         inlineSuggestionsRequest: InlineSuggestionsRequest? = null): PendingIntent {
+                                         compatInlineSuggestionsRequest: CompatInlineSuggestionsRequest? = null): PendingIntent {
             return PendingIntent.getActivity(context, 0,
-                // Doesn't work with Parcelable (don't know why?)
+                // Doesn't work with direct extra Parcelable (don't know why?)
+                // Wrap into a bundle to bypass the problem
                 Intent(context, AutofillLauncherActivity::class.java).apply {
-                    searchInfo?.let {
-                        putExtra(KEY_SEARCH_APPLICATION_ID, it.applicationId)
-                        putExtra(KEY_SEARCH_DOMAIN, it.webDomain)
-                        putExtra(KEY_SEARCH_SCHEME, it.webScheme)
-                        putExtra(KEY_MANUAL_SELECTION, it.manualSelection)
-                    }
+                    putExtra(KEY_SELECTION_BUNDLE, Bundle().apply {
+                        putParcelable(KEY_SEARCH_INFO, searchInfo)
                         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
-                        inlineSuggestionsRequest?.let {
-                            putExtra(EXTRA_INLINE_SUGGESTIONS_REQUEST, it)
-                        }
+                            putParcelable(KEY_INLINE_SUGGESTION, compatInlineSuggestionsRequest)
                         }
+                    })
                 },
-                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
-                    // TODO Mutable
-                    PendingIntent.FLAG_CANCEL_CURRENT
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
+                    PendingIntent.FLAG_MUTABLE or PendingIntent.FLAG_CANCEL_CURRENT
                 } else {
                     PendingIntent.FLAG_CANCEL_CURRENT
                 })
@@ -234,9 +247,8 @@ class AutofillLauncherActivity : DatabaseModeActivity() {
                     EntrySelectionHelper.addSpecialModeInIntent(this, SpecialMode.REGISTRATION)
                     putExtra(KEY_REGISTER_INFO, registerInfo)
                 },
-                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
-                    // TODO Mutable
-                    PendingIntent.FLAG_CANCEL_CURRENT
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
+                    PendingIntent.FLAG_MUTABLE or PendingIntent.FLAG_CANCEL_CURRENT
                 } else {
                     PendingIntent.FLAG_CANCEL_CURRENT
                 })

app/src/main/java/com/kunzisoft/keepass/activities/EntryActivity.kt

@@ -36,12 +36,20 @@ import androidx.activity.result.ActivityResultLauncher
 import androidx.activity.viewModels
 import androidx.appcompat.widget.Toolbar
 import androidx.coordinatorlayout.widget.CoordinatorLayout
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import androidx.core.graphics.BlendModeColorFilterCompat
+import androidx.core.graphics.BlendModeCompat
+import androidx.core.graphics.ColorUtils
+import com.google.android.material.appbar.AppBarLayout
 import com.google.android.material.appbar.CollapsingToolbarLayout
+import com.google.android.material.progressindicator.LinearProgressIndicator
 import com.kunzisoft.keepass.R
 import com.kunzisoft.keepass.activities.fragments.EntryFragment
 import com.kunzisoft.keepass.activities.helpers.ExternalFileHelper
 import com.kunzisoft.keepass.activities.helpers.SpecialMode
 import com.kunzisoft.keepass.activities.legacy.DatabaseLockActivity
+import com.kunzisoft.keepass.adapters.TagsAdapter
 import com.kunzisoft.keepass.database.element.Attachment
 import com.kunzisoft.keepass.database.element.Database
 import com.kunzisoft.keepass.database.element.icon.IconImage
@@ -58,7 +66,10 @@ import com.kunzisoft.keepass.settings.PreferencesUtil
 import com.kunzisoft.keepass.tasks.ActionRunnable
 import com.kunzisoft.keepass.tasks.AttachmentFileBinderManager
 import com.kunzisoft.keepass.timeout.TimeoutHelper
-import com.kunzisoft.keepass.utils.*
+import com.kunzisoft.keepass.utils.UriUtil
+import com.kunzisoft.keepass.utils.UuidUtil
+import com.kunzisoft.keepass.view.changeControlColor
+import com.kunzisoft.keepass.view.changeTitleColor
 import com.kunzisoft.keepass.view.hideByFading
 import com.kunzisoft.keepass.view.showActionErrorIfNeeded
 import com.kunzisoft.keepass.viewmodels.EntryViewModel
@@ -68,15 +79,20 @@ class EntryActivity : DatabaseLockActivity() {
 
     private var coordinatorLayout: CoordinatorLayout? = null
     private var collapsingToolbarLayout: CollapsingToolbarLayout? = null
+    private var appBarLayout: AppBarLayout? = null
     private var titleIconView: ImageView? = null
     private var historyView: View? = null
-    private var entryProgress: ProgressBar? = null
+    private var tagsListView: RecyclerView? = null
+    private var tagsAdapter: TagsAdapter? = null
+    private var entryProgress: LinearProgressIndicator? = null
     private var lockView: View? = null
     private var toolbar: Toolbar? = null
     private var loadingView: ProgressBar? = null
 
     private val mEntryViewModel: EntryViewModel by viewModels()
 
+    private val mEntryActivityEducation = EntryActivityEducation(this)
+
     private var mMainEntryId: NodeId<UUID>? = null
     private var mHistoryPosition: Int = -1
     private var mEntryIsHistory: Boolean = false
@@ -93,7 +109,12 @@ class EntryActivity : DatabaseLockActivity() {
     }
 
     private var mIcon: IconImage? = null
-    private var mIconColor: Int = 0
+    private var mColorAccent: Int = 0
+    private var mControlColor: Int = 0
+    private var mColorPrimary: Int = 0
+    private var mColorBackground: Int = 0
+    private var mBackgroundColor: Int? = null
+    private var mForegroundColor: Int? = null
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -108,8 +129,10 @@ class EntryActivity : DatabaseLockActivity() {
         // Get views
         coordinatorLayout = findViewById(R.id.toolbar_coordinator)
         collapsingToolbarLayout = findViewById(R.id.toolbar_layout)
+        appBarLayout = findViewById(R.id.app_bar)
         titleIconView = findViewById(R.id.entry_icon)
         historyView = findViewById(R.id.history_container)
+        tagsListView = findViewById(R.id.entry_tags_list_view)
         entryProgress = findViewById(R.id.entry_progress)
         lockView = findViewById(R.id.lock_button)
         loadingView = findViewById(R.id.loading)
@@ -118,10 +141,26 @@ class EntryActivity : DatabaseLockActivity() {
         collapsingToolbarLayout?.title = " "
         toolbar?.title = " "
 
-        // Retrieve the textColor to tint the icon
-        val taIconColor = theme.obtainStyledAttributes(intArrayOf(R.attr.colorAccent))
-        mIconColor = taIconColor.getColor(0, Color.BLACK)
-        taIconColor.recycle()
+        // Retrieve the textColor to tint the toolbar
+        val taColorAccent = theme.obtainStyledAttributes(intArrayOf(R.attr.colorAccent))
+        val taControlColor = theme.obtainStyledAttributes(intArrayOf(R.attr.toolbarColorControl))
+        val taColorPrimary = theme.obtainStyledAttributes(intArrayOf(R.attr.colorPrimary))
+        val taColorBackground = theme.obtainStyledAttributes(intArrayOf(android.R.attr.windowBackground))
+        mColorAccent = taColorAccent.getColor(0, Color.BLACK)
+        mControlColor = taControlColor.getColor(0, Color.BLACK)
+        mColorPrimary = taColorPrimary.getColor(0, Color.BLACK)
+        mColorBackground = taColorBackground.getColor(0, Color.BLACK)
+        taColorAccent.recycle()
+        taControlColor.recycle()
+        taColorPrimary.recycle()
+        taColorBackground.recycle()
+
+        // Init Tags adapter
+        tagsAdapter = TagsAdapter(this)
+        tagsListView?.apply {
+            layoutManager = LinearLayoutManager(context, LinearLayoutManager.HORIZONTAL, false)
+            adapter = tagsAdapter
+        }
 
         // Get Entry from UUID
         try {
@@ -166,10 +205,8 @@ class EntryActivity : DatabaseLockActivity() {
                 // Assign history dedicated view
                 historyView?.visibility = if (entryIsHistory) View.VISIBLE else View.GONE
                 if (entryIsHistory) {
-                    val taColorAccent = theme.obtainStyledAttributes(intArrayOf(R.attr.colorAccent))
                     collapsingToolbarLayout?.contentScrim =
-                        ColorDrawable(taColorAccent.getColor(0, Color.BLACK))
-                    taColorAccent.recycle()
+                        ColorDrawable(mColorAccent)
                 }
 
                 val entryInfo = entryInfoHistory.entryInfo
@@ -184,15 +221,20 @@ class EntryActivity : DatabaseLockActivity() {
                 }
                 // Assign title icon
                 mIcon = entryInfo.icon
-                titleIconView?.let { iconView ->
-                    mIconDrawableFactory?.assignDatabaseIcon(iconView, entryInfo.icon, mIconColor)
-                }
                 // Assign title text
                 val entryTitle =
-                    if (entryInfo.title.isNotEmpty()) entryInfo.title else entryInfo.id.toString()
+                    if (entryInfo.title.isNotEmpty()) entryInfo.title else UuidUtil.toHexString(entryInfo.id)
                 collapsingToolbarLayout?.title = entryTitle
                 toolbar?.title = entryTitle
                 mUrl = entryInfo.url
+                // Assign tags
+                val tags = entryInfo.tags
+                tagsListView?.visibility = if (tags.isEmpty()) View.GONE else View.VISIBLE
+                tagsAdapter?.setTags(tags)
+                // Assign colors
+                val showEntryColors = PreferencesUtil.showEntryColors(this)
+                mBackgroundColor = if (showEntryColors) entryInfo.backgroundColor else null
+                mForegroundColor = if (showEntryColors) entryInfo.foregroundColor else null
 
                 loadingView?.hideByFading()
                 mEntryLoaded = true
@@ -204,9 +246,9 @@ class EntryActivity : DatabaseLockActivity() {
         }
 
         mEntryViewModel.onOtpElementUpdated.observe(this) { otpElement ->
-            if (otpElement == null)
+            if (otpElement == null) {
                 entryProgress?.visibility = View.GONE
-            when (otpElement?.type) {
+            } else when (otpElement.type) {
                 // Only add token if HOTP
                 OtpType.HOTP -> {
                     entryProgress?.visibility = View.GONE
@@ -215,7 +257,7 @@ class EntryActivity : DatabaseLockActivity() {
                 OtpType.TOTP -> {
                     entryProgress?.apply {
                         max = otpElement.period
-                        progress = otpElement.secondsRemaining
+                        setProgressCompat(otpElement.secondsRemaining, true)
                         visibility = View.VISIBLE
                     }
                 }
@@ -252,13 +294,6 @@ class EntryActivity : DatabaseLockActivity() {
         super.onDatabaseRetrieved(database)
 
         mEntryViewModel.loadDatabase(database)
-
-        // Assign title icon
-        mIcon?.let { icon ->
-            titleIconView?.let { iconView ->
-                mIconDrawableFactory?.assignDatabaseIcon(iconView, icon, mIconColor)
-            }
-        }
     }
 
     override fun onDatabaseActionFinished(
@@ -296,6 +331,11 @@ class EntryActivity : DatabaseLockActivity() {
                 }
             }
         }
+
+        // Keep the screen on
+        if (PreferencesUtil.isKeepScreenOnEnabled(this)) {
+            window.addFlags(android.view.WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON)
+        }
     }
 
     override fun onPause() {
@@ -304,11 +344,33 @@ class EntryActivity : DatabaseLockActivity() {
         super.onPause()
     }
 
+    private fun applyToolbarColors() {
+        appBarLayout?.setBackgroundColor(mBackgroundColor ?: mColorPrimary)
+        collapsingToolbarLayout?.contentScrim = ColorDrawable(mBackgroundColor ?: mColorPrimary)
+        val backgroundDarker = if (mBackgroundColor != null) {
+            ColorUtils.blendARGB(mBackgroundColor!!, Color.WHITE, 0.1f)
+        } else {
+            mColorBackground
+        }
+        titleIconView?.background?.colorFilter = BlendModeColorFilterCompat
+            .createBlendModeColorFilterCompat(backgroundDarker, BlendModeCompat.SRC_IN)
+        mIcon?.let { icon ->
+            titleIconView?.let { iconView ->
+                mIconDrawableFactory?.assignDatabaseIcon(
+                    iconView,
+                    icon,
+                    mForegroundColor ?: mColorAccent
+                )
+            }
+        }
+        toolbar?.changeControlColor(mForegroundColor ?: mControlColor)
+        collapsingToolbarLayout?.changeTitleColor(mForegroundColor ?: mControlColor)
+    }
+
     override fun onCreateOptionsMenu(menu: Menu): Boolean {
         super.onCreateOptionsMenu(menu)
         if (mEntryLoaded) {
             val inflater = menuInflater
-            MenuUtil.contributionMenuInflater(inflater, menu)
 
             inflater.inflate(R.menu.entry, menu)
             inflater.inflate(R.menu.database, menu)
@@ -319,11 +381,7 @@ class EntryActivity : DatabaseLockActivity() {
 
             // Show education views
             Handler(Looper.getMainLooper()).post {
-                performedNextEducation(
-                    EntryActivityEducation(
-                        this
-                    ), menu
-                )
+                performedNextEducation(menu)
             }
         }
         return true
@@ -335,39 +393,44 @@ class EntryActivity : DatabaseLockActivity() {
         }
         if (mEntryIsHistory || mDatabaseReadOnly) {
             menu?.findItem(R.id.menu_save_database)?.isVisible = false
+            menu?.findItem(R.id.menu_merge_database)?.isVisible = false
             menu?.findItem(R.id.menu_edit)?.isVisible = false
         }
+        if (!mMergeDataAllowed) {
+            menu?.findItem(R.id.menu_merge_database)?.isVisible = false
+        }
         if (mSpecialMode != SpecialMode.DEFAULT) {
+            menu?.findItem(R.id.menu_merge_database)?.isVisible = false
             menu?.findItem(R.id.menu_reload_database)?.isVisible = false
         }
+        applyToolbarColors()
         return super.onPrepareOptionsMenu(menu)
     }
 
-    private fun performedNextEducation(entryActivityEducation: EntryActivityEducation,
-                                       menu: Menu) {
+    private fun performedNextEducation(menu: Menu) {
         val entryFragment = supportFragmentManager.findFragmentByTag(ENTRY_FRAGMENT_TAG)
                 as? EntryFragment?
         val entryFieldCopyView: View? = entryFragment?.firstEntryFieldCopyView()
         val entryCopyEducationPerformed = entryFieldCopyView != null
-                && entryActivityEducation.checkAndPerformedEntryCopyEducation(
+                && mEntryActivityEducation.checkAndPerformedEntryCopyEducation(
                 entryFieldCopyView,
                 {
                     entryFragment.launchEntryCopyEducationAction()
                 },
                 {
-                    performedNextEducation(entryActivityEducation, menu)
+                    performedNextEducation(menu)
                 })
 
         if (!entryCopyEducationPerformed) {
             val menuEditView = toolbar?.findViewById<View>(R.id.menu_edit)
             // entryEditEducationPerformed
-            menuEditView != null && entryActivityEducation.checkAndPerformedEntryEditEducation(
+            menuEditView != null && mEntryActivityEducation.checkAndPerformedEntryEditEducation(
                     menuEditView,
                     {
                         onOptionsItemSelected(menu.findItem(R.id.menu_edit))
                     },
                     {
-                        performedNextEducation(entryActivityEducation, menu)
+                        performedNextEducation(menu)
                     }
             )
         }
@@ -375,10 +438,6 @@ class EntryActivity : DatabaseLockActivity() {
 
     override fun onOptionsItemSelected(item: MenuItem): Boolean {
         when (item.itemId) {
-            R.id.menu_contribute -> {
-                MenuUtil.onContributionItemSelected(this)
-                return true
-            }
             R.id.menu_edit -> {
                 mDatabase?.let { database ->
                     mMainEntryId?.let { entryId ->
@@ -415,6 +474,9 @@ class EntryActivity : DatabaseLockActivity() {
             R.id.menu_save_database -> {
                 saveDatabase()
             }
+            R.id.menu_merge_database -> {
+                mergeDatabase()
+            }
             R.id.menu_reload_database -> {
                 reloadDatabase()
             }

app/src/main/java/com/kunzisoft/keepass/activities/EntryEditActivity.kt

@@ -74,6 +74,7 @@ import com.kunzisoft.keepass.tasks.AttachmentFileBinderManager
 import com.kunzisoft.keepass.timeout.TimeoutHelper
 import com.kunzisoft.keepass.utils.UriUtil
 import com.kunzisoft.keepass.view.*
+import com.kunzisoft.keepass.viewmodels.ColorPickerViewModel
 import com.kunzisoft.keepass.viewmodels.EntryEditViewModel
 import org.joda.time.DateTime
 import java.util.*
@@ -103,6 +104,8 @@ class EntryEditActivity : DatabaseLockActivity(),
     private var mEntryLoaded: Boolean = false
     private var mTemplatesSelectorAdapter: TemplatesSelectorAdapter? = null
 
+    private val mColorPickerViewModel: ColorPickerViewModel by viewModels()
+
     private var mAllowCustomFields = false
     private var mAllowOTP = false
 
@@ -110,7 +113,7 @@ class EntryEditActivity : DatabaseLockActivity(),
     private var mExternalFileHelper: ExternalFileHelper? = null
     private var mAttachmentFileBinderManager: AttachmentFileBinderManager? = null
     // Education
-    private var entryEditActivityEducation: EntryEditActivityEducation? = null
+    private var mEntryEditActivityEducation = EntryEditActivityEducation(this)
 
     private var mIconSelectionActivityResultLauncher = IconPickerActivity.registerIconSelectionForResult(this) { icon ->
         mEntryEditViewModel.selectIcon(icon)
@@ -180,8 +183,6 @@ class EntryEditActivity : DatabaseLockActivity(),
         }
 
         mAttachmentFileBinderManager = AttachmentFileBinderManager(this)
-        // Verify the education views
-        entryEditActivityEducation = EntryEditActivityEducation(this)
 
         // Lock button
         lockView?.setOnClickListener { lockAndExit() }
@@ -243,6 +244,15 @@ class EntryEditActivity : DatabaseLockActivity(),
             IconPickerActivity.launch(this@EntryEditActivity, iconImage, mIconSelectionActivityResultLauncher)
         }
 
+        mEntryEditViewModel.requestColorSelection.observe(this) { color ->
+            ColorPickerDialogFragment.newInstance(color)
+                .show(supportFragmentManager, "ColorPickerFragment")
+        }
+
+        mColorPickerViewModel.colorPicked.observe(this) { color ->
+            mEntryEditViewModel.selectColor(color)
+        }
+
         mEntryEditViewModel.requestDateTimeSelection.observe(this) { dateInstant ->
             if (dateInstant.type == DateInstant.Type.TIME) {
                 // Launch the time picker
@@ -526,10 +536,8 @@ class EntryEditActivity : DatabaseLockActivity(),
         super.onCreateOptionsMenu(menu)
         if (mEntryLoaded) {
             menuInflater.inflate(R.menu.entry_edit, menu)
-            entryEditActivityEducation?.let {
             Handler(Looper.getMainLooper()).post {
-                    performedNextEducation(it)
-                }
+                performedNextEducation()
             }
         }
         return true
@@ -556,19 +564,19 @@ class EntryEditActivity : DatabaseLockActivity(),
         return super.onPrepareOptionsMenu(menu)
     }
 
-    private fun performedNextEducation(entryEditActivityEducation: EntryEditActivityEducation) {
+    private fun performedNextEducation() {
 
         val entryEditFragment = supportFragmentManager.findFragmentById(R.id.entry_edit_content)
                 as? EntryEditFragment?
         val generatePasswordView = entryEditFragment?.getActionImageView()
         val generatePasswordEductionPerformed = generatePasswordView != null
-                && entryEditActivityEducation.checkAndPerformedGeneratePasswordEducation(
+                && mEntryEditActivityEducation.checkAndPerformedGeneratePasswordEducation(
             generatePasswordView,
             {
                 entryEditFragment.launchGeneratePasswordEductionAction()
             },
             {
-                performedNextEducation(entryEditActivityEducation)
+                performedNextEducation()
             }
         )
 
@@ -577,33 +585,33 @@ class EntryEditActivity : DatabaseLockActivity(),
             val addNewFieldEducationPerformed = mAllowCustomFields
                     && addNewFieldView != null
                     && addNewFieldView.isVisible
-                    && entryEditActivityEducation.checkAndPerformedEntryNewFieldEducation(
+                    && mEntryEditActivityEducation.checkAndPerformedEntryNewFieldEducation(
                     addNewFieldView,
                     {
                         addNewCustomField()
                     },
                     {
-                        performedNextEducation(entryEditActivityEducation)
+                        performedNextEducation()
                     }
             )
             if (!addNewFieldEducationPerformed) {
                 val attachmentView: View? = entryEditAddToolBar?.findViewById(R.id.menu_add_attachment)
                 val addAttachmentEducationPerformed = attachmentView != null
                         && attachmentView.isVisible
-                        && entryEditActivityEducation.checkAndPerformedAttachmentEducation(
+                        && mEntryEditActivityEducation.checkAndPerformedAttachmentEducation(
                         attachmentView,
                         {
                             addNewAttachment()
                         },
                         {
-                            performedNextEducation(entryEditActivityEducation)
+                            performedNextEducation()
                         }
                 )
                 if (!addAttachmentEducationPerformed) {
                     val setupOtpView: View? = entryEditAddToolBar?.findViewById(R.id.menu_add_otp)
                     setupOtpView != null
                             && setupOtpView.isVisible
-                            && entryEditActivityEducation.checkAndPerformedSetUpOTPEducation(
+                            && mEntryEditActivityEducation.checkAndPerformedSetUpOTPEducation(
                             setupOtpView,
                             {
                                 setupOtp()
@@ -650,8 +658,8 @@ class EntryEditActivity : DatabaseLockActivity(),
 
     override fun acceptPassword(passwordField: Field) {
         mEntryEditViewModel.selectPassword(passwordField)
-        entryEditActivityEducation?.let {
-            Handler(Looper.getMainLooper()).post { performedNextEducation(it) }
+        Handler(Looper.getMainLooper()).post {
+            performedNextEducation()
         }
     }
 

app/src/main/java/com/kunzisoft/keepass/activities/FileDatabaseSelectActivity.kt

@@ -42,7 +42,7 @@ import androidx.recyclerview.widget.RecyclerView
 import androidx.recyclerview.widget.SimpleItemAnimator
 import com.google.android.material.snackbar.Snackbar
 import com.kunzisoft.keepass.R
-import com.kunzisoft.keepass.activities.dialogs.AssignMasterKeyDialogFragment
+import com.kunzisoft.keepass.activities.dialogs.SetMainCredentialDialogFragment
 import com.kunzisoft.keepass.activities.helpers.EntrySelectionHelper
 import com.kunzisoft.keepass.activities.helpers.ExternalFileHelper
 import com.kunzisoft.keepass.activities.helpers.SpecialMode
@@ -69,7 +69,7 @@ import com.kunzisoft.keepass.viewmodels.DatabaseFilesViewModel
 import java.io.FileNotFoundException
 
 class FileDatabaseSelectActivity : DatabaseModeActivity(),
-        AssignMasterKeyDialogFragment.AssignPasswordDialogListener {
+        SetMainCredentialDialogFragment.AssignMainCredentialDialogListener {
 
     // Views
     private lateinit var coordinatorLayout: CoordinatorLayout
@@ -78,6 +78,8 @@ class FileDatabaseSelectActivity : DatabaseModeActivity(),
 
     private val databaseFilesViewModel: DatabaseFilesViewModel by viewModels()
 
+    private val mFileDatabaseSelectActivityEducation = FileDatabaseSelectActivityEducation(this)
+
     // Adapter to manage database history list
     private var mAdapterDatabaseHistory: FileDatabaseHistoryAdapter? = null
 
@@ -124,7 +126,7 @@ class FileDatabaseSelectActivity : DatabaseModeActivity(),
         mExternalFileHelper?.buildCreateDocument("application/x-keepass") { databaseFileCreatedUri ->
             mDatabaseFileUri = databaseFileCreatedUri
             if (mDatabaseFileUri != null) {
-                AssignMasterKeyDialogFragment.getInstance(true)
+                SetMainCredentialDialogFragment.getInstance(true)
                     .show(supportFragmentManager, "passwordDialog")
             } else {
                 val error = getString(R.string.error_create_database)
@@ -132,7 +134,7 @@ class FileDatabaseSelectActivity : DatabaseModeActivity(),
                 Log.e(TAG, error)
             }
         }
-        openDatabaseButtonView = findViewById(R.id.open_keyfile_button)
+        openDatabaseButtonView = findViewById(R.id.open_database_button)
         openDatabaseButtonView?.setOpenDocumentClickListener(mExternalFileHelper)
 
         // History list
@@ -291,7 +293,7 @@ class FileDatabaseSelectActivity : DatabaseModeActivity(),
     }
 
     private fun launchPasswordActivity(databaseUri: Uri, keyFile: Uri?) {
-        PasswordActivity.launch(this,
+        MainCredentialActivity.launch(this,
                 databaseUri,
                 keyFile,
                 { exception ->
@@ -392,39 +394,40 @@ class FileDatabaseSelectActivity : DatabaseModeActivity(),
             MenuUtil.defaultMenuInflater(menuInflater, menu)
         }
 
-        Handler(Looper.getMainLooper()).post { performedNextEducation(FileDatabaseSelectActivityEducation(this)) }
+        Handler(Looper.getMainLooper()).post {
+            performedNextEducation()
+        }
 
         return true
     }
 
-    private fun performedNextEducation(fileDatabaseSelectActivityEducation: FileDatabaseSelectActivityEducation) {
+    private fun performedNextEducation() {
         // If no recent files
         val createDatabaseEducationPerformed =
                 createDatabaseButtonView != null
                 && createDatabaseButtonView!!.visibility == View.VISIBLE
-                && mAdapterDatabaseHistory != null
-                && mAdapterDatabaseHistory!!.itemCount == 0
-                && fileDatabaseSelectActivityEducation.checkAndPerformedCreateDatabaseEducation(
+                && mFileDatabaseSelectActivityEducation.checkAndPerformedCreateDatabaseEducation(
                         createDatabaseButtonView!!,
                 {
                     createNewFile()
                 },
                 {
                     // But if the user cancel, it can also select a database
-                    performedNextEducation(fileDatabaseSelectActivityEducation)
+                    performedNextEducation()
                 })
         if (!createDatabaseEducationPerformed) {
             // selectDatabaseEducationPerformed
             openDatabaseButtonView != null
-                    && fileDatabaseSelectActivityEducation.checkAndPerformedSelectDatabaseEducation(
+            && mFileDatabaseSelectActivityEducation.checkAndPerformedSelectDatabaseEducation(
                 openDatabaseButtonView!!,
             { tapTargetView ->
                 tapTargetView?.let {
                     mExternalFileHelper?.openDocument()
                 }
             },
-                    {}
-            )
+            {
+
+            })
         }
     }
 

app/src/main/java/com/kunzisoft/keepass/activities/MainCredentialActivity.kt

@@ -21,35 +21,34 @@ package com.kunzisoft.keepass.activities
 
 import android.app.Activity
 import android.content.Intent
-import android.content.pm.PackageManager
 import android.net.Uri
 import android.os.Build
 import android.os.Bundle
 import android.os.Handler
 import android.os.Looper
-import android.text.Editable
-import android.text.TextWatcher
 import android.util.Log
-import android.view.*
-import android.view.KeyEvent.KEYCODE_ENTER
-import android.view.inputmethod.EditorInfo.IME_ACTION_DONE
-import android.view.inputmethod.InputMethodManager
-import android.widget.*
+import android.view.Menu
+import android.view.MenuItem
+import android.view.View
+import android.view.ViewGroup
+import android.widget.Button
+import android.widget.CompoundButton
+import android.widget.TextView
 import androidx.activity.result.ActivityResultLauncher
 import androidx.activity.viewModels
 import androidx.annotation.RequiresApi
 import androidx.appcompat.app.AppCompatActivity
 import androidx.appcompat.widget.Toolbar
 import androidx.coordinatorlayout.widget.CoordinatorLayout
-import androidx.core.app.ActivityCompat
 import androidx.fragment.app.commit
 import com.google.android.material.snackbar.Snackbar
 import com.kunzisoft.keepass.R
 import com.kunzisoft.keepass.activities.dialogs.DuplicateUuidDialog
-import com.kunzisoft.keepass.activities.helpers.*
+import com.kunzisoft.keepass.activities.helpers.EntrySelectionHelper
+import com.kunzisoft.keepass.activities.helpers.ExternalFileHelper
+import com.kunzisoft.keepass.activities.helpers.SpecialMode
 import com.kunzisoft.keepass.activities.legacy.DatabaseLockActivity
 import com.kunzisoft.keepass.activities.legacy.DatabaseModeActivity
-import com.kunzisoft.keepass.app.database.CipherDatabaseEntity
 import com.kunzisoft.keepass.autofill.AutofillComponent
 import com.kunzisoft.keepass.autofill.AutofillHelper
 import com.kunzisoft.keepass.biometric.AdvancedUnlockFragment
@@ -57,11 +56,9 @@ import com.kunzisoft.keepass.database.element.Database
 import com.kunzisoft.keepass.database.exception.DuplicateUuidDatabaseException
 import com.kunzisoft.keepass.database.exception.FileNotFoundDatabaseException
 import com.kunzisoft.keepass.education.PasswordActivityEducation
-import com.kunzisoft.keepass.model.MainCredential
-import com.kunzisoft.keepass.model.RegisterInfo
-import com.kunzisoft.keepass.model.SearchInfo
+import com.kunzisoft.keepass.model.*
 import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.ACTION_DATABASE_LOAD_TASK
-import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.CIPHER_ENTITY_KEY
+import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.CIPHER_DATABASE_KEY
 import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.DATABASE_URI_KEY
 import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.MAIN_CREDENTIAL_KEY
 import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.READ_ONLY_KEY
@@ -70,23 +67,20 @@ import com.kunzisoft.keepass.tasks.ActionRunnable
 import com.kunzisoft.keepass.utils.BACK_PREVIOUS_KEYBOARD_ACTION
 import com.kunzisoft.keepass.utils.MenuUtil
 import com.kunzisoft.keepass.utils.UriUtil
-import com.kunzisoft.keepass.view.KeyFileSelectionView
+import com.kunzisoft.keepass.view.MainCredentialView
 import com.kunzisoft.keepass.view.asError
 import com.kunzisoft.keepass.viewmodels.AdvancedUnlockViewModel
 import com.kunzisoft.keepass.viewmodels.DatabaseFileViewModel
 import java.io.FileNotFoundException
 
 
-class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.BuilderListener {
+class MainCredentialActivity : DatabaseModeActivity(), AdvancedUnlockFragment.BuilderListener {
 
     // Views
     private var toolbar: Toolbar? = null
     private var filenameView: TextView? = null
-    private var passwordView: EditText? = null
-    private var keyFileSelectionView: KeyFileSelectionView? = null
+    private var mainCredentialView: MainCredentialView? = null
     private var confirmButtonView: Button? = null
-    private var checkboxPasswordView: CompoundButton? = null
-    private var checkboxKeyFileView: CompoundButton? = null
     private var infoContainerView: ViewGroup? = null
     private lateinit var coordinatorLayout: CoordinatorLayout
     private var advancedUnlockFragment: AdvancedUnlockFragment? = null
@@ -94,25 +88,16 @@ class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.BuilderL
     private val mDatabaseFileViewModel: DatabaseFileViewModel by viewModels()
     private val mAdvancedUnlockViewModel: AdvancedUnlockViewModel by viewModels()
 
+    private val mPasswordActivityEducation = PasswordActivityEducation(this)
+
     private var mDefaultDatabase: Boolean = false
     private var mDatabaseFileUri: Uri? = null
-    private var mDatabaseKeyFileUri: Uri? = null
 
     private var mRememberKeyFile: Boolean = false
     private var mExternalFileHelper: ExternalFileHelper? = null
 
-    private var mPermissionAsked = false
     private var mReadOnly: Boolean = false
     private var mForceReadOnly: Boolean = false
-        set(value) {
-            infoContainerView?.visibility = if (value) {
-                mReadOnly = true
-                View.VISIBLE
-            } else {
-                View.GONE
-            }
-            field = value
-        }
 
     private var mAutofillActivityResultLauncher: ActivityResultLauncher<Intent>? =
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
@@ -122,7 +107,7 @@ class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.BuilderL
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
-        setContentView(R.layout.activity_password)
+        setContentView(R.layout.activity_main_credential)
 
         toolbar = findViewById(R.id.toolbar)
         toolbar?.title = getString(R.string.app_name)
@@ -130,16 +115,12 @@ class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.BuilderL
         supportActionBar?.setDisplayHomeAsUpEnabled(true)
         supportActionBar?.setDisplayShowHomeEnabled(true)
 
-        confirmButtonView = findViewById(R.id.activity_password_open_button)
         filenameView = findViewById(R.id.filename)
-        passwordView = findViewById(R.id.password)
-        keyFileSelectionView = findViewById(R.id.keyfile_selection)
-        checkboxPasswordView = findViewById(R.id.password_checkbox)
-        checkboxKeyFileView = findViewById(R.id.keyfile_checkox)
+        mainCredentialView = findViewById(R.id.activity_password_credentials)
+        confirmButtonView = findViewById(R.id.activity_password_open_button)
         infoContainerView = findViewById(R.id.activity_password_info_container)
         coordinatorLayout = findViewById(R.id.activity_password_coordinator_layout)
 
-        mPermissionAsked = savedInstanceState?.getBoolean(KEY_PERMISSION_ASKED) ?: mPermissionAsked
         mReadOnly = if (savedInstanceState != null && savedInstanceState.containsKey(KEY_READ_ONLY)) {
             savedInstanceState.getBoolean(KEY_READ_ONLY)
         } else {
@@ -147,41 +128,19 @@ class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.BuilderL
         }
         mRememberKeyFile = PreferencesUtil.rememberKeyFileLocations(this)
 
-        mExternalFileHelper = ExternalFileHelper(this@PasswordActivity)
+        mExternalFileHelper = ExternalFileHelper(this@MainCredentialActivity)
         mExternalFileHelper?.buildOpenDocument { uri ->
             if (uri != null) {
-                mDatabaseKeyFileUri = uri
-                populateKeyFileTextView(uri)
+                mainCredentialView?.populateKeyFileTextView(uri)
             }
         }
-        keyFileSelectionView?.setOpenDocumentClickListener(mExternalFileHelper)
-
-        passwordView?.setOnEditorActionListener(onEditorActionListener)
-        passwordView?.addTextChangedListener(object : TextWatcher {
-            override fun beforeTextChanged(charSequence: CharSequence, i: Int, i1: Int, i2: Int) {}
-
-            override fun onTextChanged(charSequence: CharSequence, i: Int, i1: Int, i2: Int) {}
-
-            override fun afterTextChanged(editable: Editable) {
-                if (editable.toString().isNotEmpty() && checkboxPasswordView?.isChecked != true)
-                    checkboxPasswordView?.isChecked = true
-            }
-        })
-        passwordView?.setOnKeyListener { _, _, keyEvent ->
-            var handled = false
-            if (keyEvent.action == KeyEvent.ACTION_DOWN
-                && keyEvent?.keyCode == KEYCODE_ENTER) {
-                verifyCheckboxesAndLoadDatabase()
-                handled = true
-            }
-            handled
+        mainCredentialView?.setOpenKeyfileClickListener(mExternalFileHelper)
+        mainCredentialView?.onValidateListener = {
+            loadDatabase()
         }
 
         // If is a view intent
         getUriFromIntent(intent)
-        if (savedInstanceState?.containsKey(KEY_KEYFILE) == true) {
-            mDatabaseKeyFileUri = UriUtil.parse(savedInstanceState.getString(KEY_KEYFILE))
-        }
 
         // Init Biometric elements
         advancedUnlockFragment = supportFragmentManager
@@ -196,9 +155,10 @@ class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.BuilderL
         }
 
         // Listen password checkbox to init advanced unlock and confirmation button
-        checkboxPasswordView?.setOnCheckedChangeListener { _, _ ->
+        mainCredentialView?.onPasswordChecked =
+            CompoundButton.OnCheckedChangeListener { _, _ ->
                 mAdvancedUnlockViewModel.checkUnlockAvailability()
-            enableOrNotTheConfirmationButton()
+                enableConfirmationButton()
             }
 
         // Observe if default database
@@ -208,19 +168,29 @@ class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.BuilderL
 
         // Observe database file change
         mDatabaseFileViewModel.databaseFileLoaded.observe(this) { databaseFile ->
+
             // Force read only if the file does not exists
-            mForceReadOnly = databaseFile?.let {
+            val databaseFileNotExists = databaseFile?.let {
                 !it.databaseFileExists
             } ?: true
+            infoContainerView?.visibility = if (databaseFileNotExists) {
+                mReadOnly = true
+                View.VISIBLE
+            } else {
+                View.GONE
+            }
+            mForceReadOnly = databaseFileNotExists
+
             invalidateOptionsMenu()
 
             // Post init uri with KeyFile only if needed
+            val databaseKeyFileUri = mainCredentialView?.getMainCredential()?.keyFileUri
             val keyFileUri =
                     if (mRememberKeyFile
-                            && (mDatabaseKeyFileUri == null || mDatabaseKeyFileUri.toString().isEmpty())) {
+                            && (databaseKeyFileUri == null || databaseKeyFileUri.toString().isEmpty())) {
                         databaseFile?.keyFileUri
                     } else {
-                        mDatabaseKeyFileUri
+                        databaseKeyFileUri
                     }
 
             // Define title
@@ -233,10 +203,10 @@ class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.BuilderL
     override fun onResume() {
         super.onResume()
 
-        mRememberKeyFile = PreferencesUtil.rememberKeyFileLocations(this@PasswordActivity)
+        mRememberKeyFile = PreferencesUtil.rememberKeyFileLocations(this@MainCredentialActivity)
 
         // Back to previous keyboard is setting activated
-        if (PreferencesUtil.isKeyboardPreviousDatabaseCredentialsEnable(this@PasswordActivity)) {
+        if (PreferencesUtil.isKeyboardPreviousDatabaseCredentialsEnable(this@MainCredentialActivity)) {
             sendBroadcast(Intent(BACK_PREVIOUS_KEYBOARD_ACTION))
         }
 
@@ -249,8 +219,6 @@ class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.BuilderL
             mDatabaseFileViewModel.loadDatabaseFile(databaseFileUri)
         }
 
-        checkPermission()
-
         mDatabase?.let { database ->
             launchGroupActivityIfLoaded(database)
         }
@@ -277,7 +245,7 @@ class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.BuilderL
                 if (result.isSuccess) {
                     launchGroupActivityIfLoaded(database)
                 } else {
-                    passwordView?.requestFocusFromTouch()
+                    mainCredentialView?.requestPasswordFocus()
 
                     var resultError = ""
                     val resultException = result.exception
@@ -294,7 +262,7 @@ class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.BuilderL
                                     var databaseUri: Uri? = null
                                     var mainCredential = MainCredential()
                                     var readOnly = true
-                                    var cipherEntity: CipherDatabaseEntity? = null
+                                    var cipherEncryptDatabase: CipherEncryptDatabase? = null
 
                                     result.data?.let { resultData ->
                                         databaseUri = resultData.getParcelable(DATABASE_URI_KEY)
@@ -302,8 +270,8 @@ class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.BuilderL
                                             resultData.getParcelable(MAIN_CREDENTIAL_KEY)
                                                 ?: mainCredential
                                         readOnly = resultData.getBoolean(READ_ONLY_KEY)
-                                        cipherEntity =
-                                            resultData.getParcelable(CIPHER_ENTITY_KEY)
+                                        cipherEncryptDatabase =
+                                            resultData.getParcelable(CIPHER_DATABASE_KEY)
                                     }
 
                                     databaseUri?.let { databaseFileUri ->
@@ -311,7 +279,7 @@ class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.BuilderL
                                             databaseFileUri,
                                             mainCredential,
                                             readOnly,
-                                            cipherEntity,
+                                            cipherEncryptDatabase,
                                             true
                                         )
                                     }
@@ -347,11 +315,16 @@ class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.BuilderL
         if (action != null
                 && action == VIEW_INTENT) {
             mDatabaseFileUri = intent.data
-            mDatabaseKeyFileUri = UriUtil.getUriFromIntent(intent, KEY_KEYFILE)
+            mainCredentialView?.populateKeyFileTextView(UriUtil.getUriFromIntent(intent, KEY_KEYFILE))
         } else {
             mDatabaseFileUri = intent?.getParcelableExtra(KEY_FILENAME)
-            mDatabaseKeyFileUri = intent?.getParcelableExtra(KEY_KEYFILE)
+            intent?.getParcelableExtra<Uri?>(KEY_KEYFILE)?.let {
+                mainCredentialView?.populateKeyFileTextView(it)
             }
+        }
+        try {
+            intent?.removeExtra(KEY_KEYFILE)
+        } catch (e: Exception) {}
         mDatabaseFileUri?.let {
             mDatabaseFileViewModel.checkIfIsDefaultDatabase(it)
         }
@@ -386,51 +359,68 @@ class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.BuilderL
         finish()
     }
 
-    override fun retrieveCredentialForEncryption(): String {
-        return passwordView?.text?.toString() ?: ""
+    override fun retrieveCredentialForEncryption(): ByteArray {
+        return mainCredentialView?.retrieveCredentialForStorage(credentialStorageListener)
+            ?: byteArrayOf()
     }
 
     override fun conditionToStoreCredential(): Boolean {
-        return checkboxPasswordView?.isChecked == true
+        return mainCredentialView?.conditionToStoreCredential() == true
     }
 
-    override fun onCredentialEncrypted(databaseUri: Uri,
-                                       encryptedCredential: String,
-                                       ivSpec: String) {
+    override fun onCredentialEncrypted(cipherEncryptDatabase: CipherEncryptDatabase) {
         // Load the database if password is registered with biometric
-        verifyCheckboxesAndLoadDatabase(
-                CipherDatabaseEntity(
-                        databaseUri.toString(),
-                        encryptedCredential,
-                        ivSpec)
+        loadDatabase(mDatabaseFileUri,
+            mainCredentialView?.getMainCredential(),
+            cipherEncryptDatabase
         )
     }
 
-    override fun onCredentialDecrypted(databaseUri: Uri,
-                                       decryptedCredential: String) {
-        // Load the database if password is retrieve from biometric
-        // Retrieve from biometric
-        verifyKeyFileCheckboxAndLoadDatabase(decryptedCredential)
+    private val credentialStorageListener = object: MainCredentialView.CredentialStorageListener {
+        override fun passwordToStore(password: String?): ByteArray? {
+            return password?.toByteArray()
         }
 
-    private val onEditorActionListener = object : TextView.OnEditorActionListener {
-        override fun onEditorAction(v: TextView?, actionId: Int, event: KeyEvent?): Boolean {
-            if (actionId == IME_ACTION_DONE) {
-                verifyCheckboxesAndLoadDatabase()
-                return true
+        override fun keyfileToStore(keyfile: Uri?): ByteArray? {
+            // TODO create byte array to store keyfile
+            return null
         }
-            return false
+
+        override fun hardwareKeyToStore(): ByteArray? {
+            // TODO create byte array to store hardware key
+            return null
         }
     }
 
+    override fun onCredentialDecrypted(cipherDecryptDatabase: CipherDecryptDatabase) {
+        // Load the database if password is retrieve from biometric
+        // Retrieve from biometric
+        val mainCredential = mainCredentialView?.getMainCredential() ?: MainCredential()
+        when (cipherDecryptDatabase.credentialStorage) {
+            CredentialStorage.PASSWORD -> {
+                mainCredential.masterPassword = String(cipherDecryptDatabase.decryptedValue)
+            }
+            CredentialStorage.KEY_FILE -> {
+                // TODO advanced unlock key file
+            }
+            CredentialStorage.HARDWARE_KEY -> {
+                // TODO advanced unlock hardware key
+            }
+        }
+        loadDatabase(mDatabaseFileUri,
+            mainCredential,
+            null
+        )
+    }
+
     private fun onDatabaseFileLoaded(databaseFileUri: Uri?, keyFileUri: Uri?) {
         // Define Key File text
         if (mRememberKeyFile) {
-            populateKeyFileTextView(keyFileUri)
+            mainCredentialView?.populateKeyFileTextView(keyFileUri)
         }
 
         // Define listener for validate button
-        confirmButtonView?.setOnClickListener { verifyCheckboxesAndLoadDatabase() }
+        confirmButtonView?.setOnClickListener { loadDatabase() }
 
         // If Activity is launch with a password and want to open directly
         val intent = intent
@@ -439,66 +429,33 @@ class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.BuilderL
         intent.removeExtra(KEY_PASSWORD)
         val launchImmediately = intent.getBooleanExtra(KEY_LAUNCH_IMMEDIATELY, false)
         if (password != null) {
-            populatePasswordTextView(password)
+            mainCredentialView?.populatePasswordTextView(password)
         }
         if (launchImmediately) {
-            verifyCheckboxesAndLoadDatabase(password, keyFileUri)
+            loadDatabase()
         } else {
             // Init Biometric elements
             mAdvancedUnlockViewModel.databaseFileLoaded(databaseFileUri)
         }
 
-        enableOrNotTheConfirmationButton()
+        enableConfirmationButton()
 
-        // Auto select the password field and open keyboard
-        passwordView?.postDelayed({
-            passwordView?.requestFocusFromTouch()
-            val inputMethodManager = getSystemService(INPUT_METHOD_SERVICE) as? InputMethodManager?
-            inputMethodManager?.showSoftInput(passwordView, InputMethodManager.SHOW_IMPLICIT)
-        }, 100)
+        mainCredentialView?.focusPasswordFieldAndOpenKeyboard()
     }
 
-    private fun enableOrNotTheConfirmationButton() {
+    private fun enableConfirmationButton() {
         // Enable or not the open button if setting is checked
-        if (!PreferencesUtil.emptyPasswordAllowed(this@PasswordActivity)) {
-            checkboxPasswordView?.let {
-                confirmButtonView?.isEnabled = (checkboxPasswordView?.isChecked == true
-                        || checkboxKeyFileView?.isChecked == true)
-            }
+        if (!PreferencesUtil.emptyPasswordAllowed(this@MainCredentialActivity)) {
+            confirmButtonView?.isEnabled = mainCredentialView?.isFill() ?: false
         } else {
             confirmButtonView?.isEnabled = true
         }
     }
 
     private fun clearCredentialsViews(clearKeyFile: Boolean = !mRememberKeyFile) {
-        populatePasswordTextView(null)
+        mainCredentialView?.populatePasswordTextView(null)
         if (clearKeyFile) {
-            mDatabaseKeyFileUri = null
-            populateKeyFileTextView(null)
-        }
-    }
-
-    private fun populatePasswordTextView(text: String?) {
-        if (text == null || text.isEmpty()) {
-            passwordView?.setText("")
-            if (checkboxPasswordView?.isChecked == true)
-                checkboxPasswordView?.isChecked = false
-        } else {
-            passwordView?.setText(text)
-            if (checkboxPasswordView?.isChecked != true)
-                checkboxPasswordView?.isChecked = true
-        }
-    }
-
-    private fun populateKeyFileTextView(uri: Uri?) {
-        if (uri == null || uri.toString().isEmpty()) {
-            keyFileSelectionView?.uri = null
-            if (checkboxKeyFileView?.isChecked == true)
-                checkboxKeyFileView?.isChecked = false
-        } else {
-            keyFileSelectionView?.uri = uri
-            if (checkboxKeyFileView?.isChecked != true)
-                checkboxKeyFileView?.isChecked = true
+            mainCredentialView?.populateKeyFileTextView(null)
         }
     }
 
@@ -510,42 +467,20 @@ class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.BuilderL
     }
 
     override fun onSaveInstanceState(outState: Bundle) {
-        outState.putBoolean(KEY_PERMISSION_ASKED, mPermissionAsked)
-        mDatabaseKeyFileUri?.let {
-            outState.putString(KEY_KEYFILE, it.toString())
-        }
         outState.putBoolean(KEY_READ_ONLY, mReadOnly)
         super.onSaveInstanceState(outState)
     }
 
-    private fun verifyCheckboxesAndLoadDatabase(cipherDatabaseEntity: CipherDatabaseEntity? = null) {
-        val password: String? = passwordView?.text?.toString()
-        val keyFile: Uri? = keyFileSelectionView?.uri
-        verifyCheckboxesAndLoadDatabase(password, keyFile, cipherDatabaseEntity)
-    }
-
-    private fun verifyCheckboxesAndLoadDatabase(password: String?,
-                                                keyFile: Uri?,
-                                                cipherDatabaseEntity: CipherDatabaseEntity? = null) {
-        val keyPassword = if (checkboxPasswordView?.isChecked != true) null else password
-        verifyKeyFileCheckbox(keyFile)
-        loadDatabase(mDatabaseFileUri, keyPassword, mDatabaseKeyFileUri, cipherDatabaseEntity)
-    }
-
-    private fun verifyKeyFileCheckboxAndLoadDatabase(password: String?) {
-        val keyFile: Uri? = keyFileSelectionView?.uri
-        verifyKeyFileCheckbox(keyFile)
-        loadDatabase(mDatabaseFileUri, password, mDatabaseKeyFileUri)
-    }
-
-    private fun verifyKeyFileCheckbox(keyFile: Uri?) {
-        mDatabaseKeyFileUri = if (checkboxKeyFileView?.isChecked != true) null else keyFile
+    private fun loadDatabase() {
+        loadDatabase(mDatabaseFileUri,
+            mainCredentialView?.getMainCredential(),
+            null
+        )
     }
 
     private fun loadDatabase(databaseFileUri: Uri?,
-                             password: String?,
-                             keyFileUri: Uri?,
-                             cipherDatabaseEntity: CipherDatabaseEntity? = null) {
+                             mainCredential: MainCredential?,
+                             cipherEncryptDatabase: CipherEncryptDatabase?) {
 
         if (PreferencesUtil.deletePasswordAfterConnexionAttempt(this)) {
             clearCredentialsViews()
@@ -564,10 +499,11 @@ class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.BuilderL
                 // Show the progress dialog and load the database
                 showProgressDialogAndLoadDatabase(
                     databaseUri,
-                        MainCredential(password, keyFileUri),
+                    mainCredential ?: MainCredential(),
                     mReadOnly,
-                        cipherDatabaseEntity,
-                        false)
+                    cipherEncryptDatabase,
+                    false
+                )
             }
         }
     }
@@ -575,13 +511,13 @@ class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.BuilderL
     private fun showProgressDialogAndLoadDatabase(databaseUri: Uri,
                                                   mainCredential: MainCredential,
                                                   readOnly: Boolean,
-                                                  cipherDatabaseEntity: CipherDatabaseEntity?,
+                                                  cipherEncryptDatabase: CipherEncryptDatabase?,
                                                   fixDuplicateUUID: Boolean) {
         loadDatabase(
             databaseUri,
             mainCredential,
             readOnly,
-                cipherDatabaseEntity,
+            cipherEncryptDatabase,
             fixDuplicateUUID
         )
     }
@@ -613,61 +549,33 @@ class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.BuilderL
         return true
     }
 
-    // Check permission
-    private fun checkPermission() {
-        if (Build.VERSION.SDK_INT in 23..28
-                && !mReadOnly
-                && !mPermissionAsked) {
-            mPermissionAsked = true
-            // Check self permission to show or not the dialog
-            val writePermission = android.Manifest.permission.WRITE_EXTERNAL_STORAGE
-            val permissions = arrayOf(writePermission)
-            if (toolbar != null
-                    && ActivityCompat.checkSelfPermission(this, writePermission) != PackageManager.PERMISSION_GRANTED) {
-                ActivityCompat.requestPermissions(this, permissions, WRITE_EXTERNAL_STORAGE_REQUEST)
-            }
-        }
-    }
-
-    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
-        super.onRequestPermissionsResult(requestCode, permissions, grantResults)
-
-        when (requestCode) {
-            WRITE_EXTERNAL_STORAGE_REQUEST -> {
-                if (grantResults.isEmpty() || grantResults[0] != PackageManager.PERMISSION_GRANTED) {
-                    if (ActivityCompat.shouldShowRequestPermissionRationale(this, android.Manifest.permission.WRITE_EXTERNAL_STORAGE))
-                        Toast.makeText(this, R.string.read_only_warning, Toast.LENGTH_LONG).show()
-                }
-            }
-        }
-    }
-
     // To fix multiple view education
     private var performedEductionInProgress = false
     private fun launchEducation(menu: Menu) {
         if (!performedEductionInProgress) {
             performedEductionInProgress = true
             // Show education views
-            Handler(Looper.getMainLooper()).post { performedNextEducation(PasswordActivityEducation(this), menu) }
+            Handler(Looper.getMainLooper()).post {
+                performedNextEducation(menu)
+            }
         }
     }
 
-    private fun performedNextEducation(passwordActivityEducation: PasswordActivityEducation,
-                                       menu: Menu) {
+    private fun performedNextEducation(menu: Menu) {
         val educationToolbar = toolbar
         val unlockEducationPerformed = educationToolbar != null
-                && passwordActivityEducation.checkAndPerformedUnlockEducation(
+                && mPasswordActivityEducation.checkAndPerformedUnlockEducation(
                 educationToolbar,
                         {
-                            performedNextEducation(passwordActivityEducation, menu)
+                            performedNextEducation(menu)
                         },
                         {
-                            performedNextEducation(passwordActivityEducation, menu)
+                            performedNextEducation(menu)
                         })
         if (!unlockEducationPerformed) {
             val readOnlyEducationPerformed =
                     educationToolbar?.findViewById<View>(R.id.menu_open_file_read_mode_key) != null
-                    && passwordActivityEducation.checkAndPerformedReadOnlyEducation(
+                    && mPasswordActivityEducation.checkAndPerformedReadOnlyEducation(
                     educationToolbar.findViewById(R.id.menu_open_file_read_mode_key),
                     {
                         try {
@@ -675,19 +583,19 @@ class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.BuilderL
                         } catch (e: Exception) {
                             Log.e(TAG, "Unable to find read mode menu")
                         }
-                        performedNextEducation(passwordActivityEducation, menu)
+                        performedNextEducation(menu)
                     },
                     {
-                        performedNextEducation(passwordActivityEducation, menu)
+                        performedNextEducation(menu)
                     })
 
-            advancedUnlockFragment?.performEducation(passwordActivityEducation,
+            advancedUnlockFragment?.performEducation(mPasswordActivityEducation,
                     readOnlyEducationPerformed,
                     {
-                        performedNextEducation(passwordActivityEducation, menu)
+                        performedNextEducation(menu)
                     },
                     {
-                        performedNextEducation(passwordActivityEducation, menu)
+                        performedNextEducation(menu)
                     })
         }
     }
@@ -718,7 +626,7 @@ class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.BuilderL
 
     companion object {
 
-        private val TAG = PasswordActivity::class.java.name
+        private val TAG = MainCredentialActivity::class.java.name
 
         private const val UNLOCK_FRAGMENT_TAG = "UNLOCK_FRAGMENT_TAG"
 
@@ -729,12 +637,10 @@ class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.BuilderL
         private const val KEY_READ_ONLY = "KEY_READ_ONLY"
         private const val KEY_PASSWORD = "password"
         private const val KEY_LAUNCH_IMMEDIATELY = "launchImmediately"
-        private const val KEY_PERMISSION_ASKED = "KEY_PERMISSION_ASKED"
-        private const val WRITE_EXTERNAL_STORAGE_REQUEST = 647
 
         private fun buildAndLaunchIntent(activity: Activity, databaseFile: Uri, keyFile: Uri?,
                                          intentBuildLauncher: (Intent) -> Unit) {
-            val intent = Intent(activity, PasswordActivity::class.java)
+            val intent = Intent(activity, MainCredentialActivity::class.java)
             intent.putExtra(KEY_FILENAME, databaseFile)
             if (keyFile != null)
                 intent.putExtra(KEY_KEYFILE, keyFile)
@@ -870,30 +776,30 @@ class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.BuilderL
             try {
                 EntrySelectionHelper.doSpecialAction(activity.intent,
                         {
-                            PasswordActivity.launch(activity,
+                            MainCredentialActivity.launch(activity,
                                     databaseUri, keyFile)
                         },
                         { searchInfo -> // Search Action
-                            PasswordActivity.launchForSearchResult(activity,
+                            MainCredentialActivity.launchForSearchResult(activity,
                                     databaseUri, keyFile,
                                     searchInfo)
                             onLaunchActivitySpecialMode()
                         },
                         { searchInfo -> // Save Action
-                            PasswordActivity.launchForSaveResult(activity,
+                            MainCredentialActivity.launchForSaveResult(activity,
                                     databaseUri, keyFile,
                                     searchInfo)
                             onLaunchActivitySpecialMode()
                         },
                         { searchInfo -> // Keyboard Selection Action
-                            PasswordActivity.launchForKeyboardResult(activity,
+                            MainCredentialActivity.launchForKeyboardResult(activity,
                                     databaseUri, keyFile,
                                     searchInfo)
                             onLaunchActivitySpecialMode()
                         },
                         { searchInfo, autofillComponent -> // Autofill Selection Action
                             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-                                PasswordActivity.launchForAutofillResult(activity,
+                                MainCredentialActivity.launchForAutofillResult(activity,
                                         databaseUri, keyFile,
                                         autofillActivityResultLauncher,
                                         autofillComponent,
@@ -904,7 +810,7 @@ class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.BuilderL
                             }
                         },
                         { registerInfo -> // Registration Action
-                            PasswordActivity.launchForRegistration(activity,
+                            MainCredentialActivity.launchForRegistration(activity,
                                     databaseUri, keyFile,
                                     registerInfo)
                             onLaunchActivitySpecialMode()

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

@@ -0,0 +1,95 @@
+package com.kunzisoft.keepass.activities.dialogs
+
+import android.app.Dialog
+import android.graphics.Color
+import android.os.Bundle
+import android.widget.CompoundButton
+import androidx.annotation.ColorInt
+import androidx.appcompat.app.AlertDialog
+import androidx.fragment.app.activityViewModels
+import com.kunzisoft.androidclearchroma.view.ChromaColorView
+import com.kunzisoft.keepass.R
+import com.kunzisoft.keepass.viewmodels.ColorPickerViewModel
+
+class ColorPickerDialogFragment : DatabaseDialogFragment() {
+
+    private val mColorPickerViewModel: ColorPickerViewModel by activityViewModels()
+
+    private lateinit var enableSwitchView: CompoundButton
+    private lateinit var chromaColorView: ChromaColorView
+
+    private var mDefaultColor = Color.WHITE
+    private var mActivated = false
+
+    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
+
+        activity?.let { activity ->
+            val root = activity.layoutInflater.inflate(R.layout.fragment_color_picker, null)
+            enableSwitchView = root.findViewById(R.id.switch_element)
+            chromaColorView = root.findViewById(R.id.chroma_color_view)
+
+            if (savedInstanceState != null) {
+                if (savedInstanceState.containsKey(ARG_INITIAL_COLOR)) {
+                    mDefaultColor = savedInstanceState.getInt(ARG_INITIAL_COLOR)
+                }
+                if (savedInstanceState.containsKey(ARG_ACTIVATED)) {
+                    mActivated = savedInstanceState.getBoolean(ARG_ACTIVATED)
+                }
+            } else {
+                arguments?.apply {
+                    if (containsKey(ARG_INITIAL_COLOR)) {
+                        mDefaultColor = getInt(ARG_INITIAL_COLOR)
+                    }
+                    if (containsKey(ARG_ACTIVATED)) {
+                        mActivated = getBoolean(ARG_ACTIVATED)
+                    }
+                }
+            }
+            enableSwitchView.isChecked = mActivated
+            chromaColorView.currentColor = mDefaultColor
+
+            chromaColorView.setOnColorChangedListener {
+                if (!enableSwitchView.isChecked)
+                    enableSwitchView.isChecked = true
+            }
+
+            val builder = AlertDialog.Builder(activity)
+            builder.setView(root)
+                .setPositiveButton(android.R.string.ok) { _, _ ->
+                    val color: Int? = if (enableSwitchView.isChecked)
+                        chromaColorView.currentColor
+                    else
+                        null
+                    mColorPickerViewModel.pickColor(color)
+                }
+                .setNegativeButton(android.R.string.cancel) { _, _ ->
+                    // Do nothing
+                }
+
+            return builder.create()
+        }
+        return super.onCreateDialog(savedInstanceState)
+    }
+
+    override fun onSaveInstanceState(outState: Bundle) {
+        super.onSaveInstanceState(outState)
+        outState.putInt(ARG_INITIAL_COLOR, chromaColorView.currentColor)
+        outState.putBoolean(ARG_ACTIVATED, mActivated)
+    }
+
+    companion object {
+        private const val ARG_INITIAL_COLOR = "ARG_INITIAL_COLOR"
+        private const val ARG_ACTIVATED = "ARG_ACTIVATED"
+
+        fun newInstance(
+            @ColorInt initialColor: Int?,
+        ): ColorPickerDialogFragment {
+            return ColorPickerDialogFragment().apply {
+                arguments = Bundle().apply {
+                    putInt(ARG_INITIAL_COLOR, initialColor ?: Color.WHITE)
+                    putBoolean(ARG_ACTIVATED, initialColor != null)
+                }
+            }
+        }
+    }
+}

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

@@ -0,0 +1,204 @@
+/*
+ * Copyright 2021 Jeremy Jamet / Kunzisoft.
+ *     
+ * This file is part of KeePassDX.
+ *
+ *  KeePassDX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePassDX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+package com.kunzisoft.keepass.activities.dialogs
+
+import android.app.Dialog
+import android.graphics.Color
+import android.os.Bundle
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ImageView
+import android.widget.TextView
+import androidx.appcompat.app.AlertDialog
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import com.kunzisoft.keepass.R
+import com.kunzisoft.keepass.adapters.TagsAdapter
+import com.kunzisoft.keepass.database.element.Database
+import com.kunzisoft.keepass.database.element.icon.IconImage
+import com.kunzisoft.keepass.model.GroupInfo
+import com.kunzisoft.keepass.settings.PreferencesUtil
+import com.kunzisoft.keepass.utils.UuidUtil
+import com.kunzisoft.keepass.view.DateTimeFieldView
+
+class GroupDialogFragment : DatabaseDialogFragment() {
+
+    private var mPopulateIconMethod: ((ImageView, IconImage) -> Unit)? = null
+    private var mGroupInfo = GroupInfo()
+
+    private lateinit var iconView: ImageView
+    private var mIconColor: Int = 0
+    private lateinit var nameTextView: TextView
+    private lateinit var tagsListView: RecyclerView
+    private var tagsAdapter: TagsAdapter? = null
+    private lateinit var notesTextLabelView: TextView
+    private lateinit var notesTextView: TextView
+    private lateinit var expirationView: DateTimeFieldView
+    private lateinit var creationView: TextView
+    private lateinit var modificationView: TextView
+    private lateinit var searchableLabelView: TextView
+    private lateinit var searchableView: TextView
+    private lateinit var autoTypeLabelView: TextView
+    private lateinit var autoTypeView: TextView
+    private lateinit var uuidContainerView: ViewGroup
+    private lateinit var uuidReferenceView: TextView
+
+    override fun onDatabaseRetrieved(database: Database?) {
+        super.onDatabaseRetrieved(database)
+        mPopulateIconMethod = { imageView, icon ->
+            database?.iconDrawableFactory?.assignDatabaseIcon(imageView, icon, mIconColor)
+        }
+        mPopulateIconMethod?.invoke(iconView, mGroupInfo.icon)
+
+        if (database?.allowCustomSearchableGroup() == true) {
+            searchableLabelView.visibility = View.VISIBLE
+            searchableView.visibility = View.VISIBLE
+        } else {
+            searchableLabelView.visibility = View.GONE
+            searchableView.visibility = View.GONE
+        }
+
+        // TODO Auto-Type
+        /*
+        if (database?.allowAutoType() == true) {
+            autoTypeLabelView.visibility = View.VISIBLE
+            autoTypeView.visibility = View.VISIBLE
+        } else {
+            autoTypeLabelView.visibility = View.GONE
+            autoTypeView.visibility = View.GONE
+        }
+         */
+    }
+
+    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
+        activity?.let { activity ->
+            val root = activity.layoutInflater.inflate(R.layout.fragment_group, null)
+            iconView = root.findViewById(R.id.group_icon)
+            nameTextView = root.findViewById(R.id.group_name)
+            tagsListView = root.findViewById(R.id.group_tags_list_view)
+            notesTextLabelView = root.findViewById(R.id.group_note_label)
+            notesTextView = root.findViewById(R.id.group_note)
+            expirationView = root.findViewById(R.id.group_expiration)
+            creationView = root.findViewById(R.id.group_created)
+            modificationView = root.findViewById(R.id.group_modified)
+            searchableLabelView = root.findViewById(R.id.group_searchable_label)
+            searchableView = root.findViewById(R.id.group_searchable)
+            autoTypeLabelView = root.findViewById(R.id.group_auto_type_label)
+            autoTypeView = root.findViewById(R.id.group_auto_type)
+            uuidContainerView = root.findViewById(R.id.group_UUID_container)
+            uuidReferenceView = root.findViewById(R.id.group_UUID_reference)
+
+            // Retrieve the textColor to tint the icon
+            val ta = activity.theme.obtainStyledAttributes(intArrayOf(R.attr.colorAccent))
+            mIconColor = ta.getColor(0, Color.WHITE)
+            ta.recycle()
+
+            if (savedInstanceState != null
+                    && savedInstanceState.containsKey(KEY_GROUP_INFO)) {
+                mGroupInfo = savedInstanceState.getParcelable(KEY_GROUP_INFO) ?: mGroupInfo
+            } else {
+                arguments?.apply {
+                    if (containsKey(KEY_GROUP_INFO)) {
+                        mGroupInfo = getParcelable(KEY_GROUP_INFO) ?: mGroupInfo
+                    }
+                }
+            }
+
+            // populate info in views
+            val title = mGroupInfo.title
+            if (title.isEmpty()) {
+                nameTextView.visibility = View.GONE
+            } else {
+                nameTextView.text = title
+                nameTextView.visibility = View.VISIBLE
+            }
+            tagsAdapter = TagsAdapter(activity)
+            tagsListView.apply {
+                layoutManager = LinearLayoutManager(context, LinearLayoutManager.HORIZONTAL, false)
+                adapter = tagsAdapter
+            }
+            val tags = mGroupInfo.tags
+            tagsListView.visibility = if (tags.isEmpty()) View.GONE else View.VISIBLE
+            tagsAdapter?.setTags(tags)
+            val notes = mGroupInfo.notes
+            if (notes == null || notes.isEmpty()) {
+                notesTextLabelView.visibility = View.GONE
+                notesTextView.visibility = View.GONE
+            } else {
+                notesTextView.text = notes
+                notesTextLabelView.visibility = View.VISIBLE
+                notesTextView.visibility = View.VISIBLE
+            }
+            expirationView.activation = mGroupInfo.expires
+            expirationView.dateTime = mGroupInfo.expiryTime
+            creationView.text = mGroupInfo.creationTime.getDateTimeString(resources)
+            modificationView.text = mGroupInfo.lastModificationTime.getDateTimeString(resources)
+            searchableView.text = stringFromInheritableBoolean(mGroupInfo.searchable)
+            autoTypeView.text = stringFromInheritableBoolean(mGroupInfo.enableAutoType,
+                mGroupInfo.defaultAutoTypeSequence)
+            val uuid = UuidUtil.toHexString(mGroupInfo.id)
+            if (uuid == null || uuid.isEmpty()) {
+                uuidContainerView.visibility = View.GONE
+            } else {
+                uuidReferenceView.text = uuid
+                uuidContainerView.apply {
+                    visibility = if (PreferencesUtil.showUUID(context)) View.VISIBLE else View.GONE
+                }
+            }
+
+            val builder = AlertDialog.Builder(activity)
+            builder.setView(root)
+                    .setPositiveButton(android.R.string.ok){ _, _ ->
+                        // Do nothing
+                    }
+            return builder.create()
+        }
+        return super.onCreateDialog(savedInstanceState)
+    }
+
+    private fun stringFromInheritableBoolean(enable: Boolean?, value: String? = null): String {
+        val valueString = if (value != null && value.isNotEmpty()) " [$value]" else ""
+        return when {
+            enable == null -> getString(R.string.inherited) + valueString
+            enable -> getString(R.string.enable) + valueString
+            else -> getString(R.string.disable)
+        }
+    }
+
+    override fun onSaveInstanceState(outState: Bundle) {
+        outState.putParcelable(KEY_GROUP_INFO, mGroupInfo)
+        super.onSaveInstanceState(outState)
+    }
+
+    data class Error(val isError: Boolean, val messageId: Int?)
+
+    companion object {
+        const val TAG_SHOW_GROUP = "TAG_SHOW_GROUP"
+        private const val KEY_GROUP_INFO = "KEY_GROUP_INFO"
+
+        fun launch(groupInfo: GroupInfo): GroupDialogFragment {
+            val bundle = Bundle()
+            bundle.putParcelable(KEY_GROUP_INFO, groupInfo)
+            val fragment = GroupDialogFragment()
+            fragment.arguments = bundle
+            return fragment
+        }
+    }
+}

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

@@ -23,20 +23,23 @@ import android.app.Dialog
 import android.graphics.Color
 import android.os.Bundle
 import android.view.View
-import android.widget.Button
-import android.widget.ImageView
-import android.widget.TextView
+import android.view.ViewGroup
+import android.widget.*
 import androidx.appcompat.app.AlertDialog
 import androidx.fragment.app.activityViewModels
 import com.google.android.material.textfield.TextInputLayout
 import com.kunzisoft.keepass.R
 import com.kunzisoft.keepass.activities.dialogs.GroupEditDialogFragment.EditGroupDialogAction.*
+import com.kunzisoft.keepass.adapters.TagsProposalAdapter
 import com.kunzisoft.keepass.database.element.Database
 import com.kunzisoft.keepass.database.element.DateInstant
 import com.kunzisoft.keepass.database.element.icon.IconImage
 import com.kunzisoft.keepass.model.GroupInfo
 import com.kunzisoft.keepass.view.DateTimeEditFieldView
+import com.kunzisoft.keepass.view.InheritedCompletionView
+import com.kunzisoft.keepass.view.TagsCompletionView
 import com.kunzisoft.keepass.viewmodels.GroupEditViewModel
+import com.tokenautocomplete.FilteredArrayAdapter
 import org.joda.time.DateTime
 
 class GroupEditDialogFragment : DatabaseDialogFragment() {
@@ -55,6 +58,14 @@ class GroupEditDialogFragment : DatabaseDialogFragment() {
     private lateinit var notesTextLayoutView: TextInputLayout
     private lateinit var notesTextView: TextView
     private lateinit var expirationView: DateTimeEditFieldView
+    private lateinit var searchableContainerView: TextInputLayout
+    private lateinit var searchableView: InheritedCompletionView
+    private lateinit var autoTypeContainerView: ViewGroup
+    private lateinit var autoTypeInheritedView: InheritedCompletionView
+    private lateinit var autoTypeSequenceView: TextView
+    private lateinit var tagsContainerView: TextInputLayout
+    private lateinit var tagsCompletionView: TagsCompletionView
+    private var tagsAdapter: FilteredArrayAdapter<String>? = null
 
     enum class EditGroupDialogAction {
         CREATION, UPDATE, NONE;
@@ -107,10 +118,30 @@ class GroupEditDialogFragment : DatabaseDialogFragment() {
 
     override fun onDatabaseRetrieved(database: Database?) {
         super.onDatabaseRetrieved(database)
+
         mPopulateIconMethod = { imageView, icon ->
             database?.iconDrawableFactory?.assignDatabaseIcon(imageView, icon, mIconColor)
         }
         mPopulateIconMethod?.invoke(iconButtonView, mGroupInfo.icon)
+
+        searchableContainerView.visibility = if (database?.allowCustomSearchableGroup() == true) {
+            View.VISIBLE
+        } else {
+            View.GONE
+        }
+
+        if (database?.allowAutoType() == true) {
+            autoTypeContainerView.visibility = View.VISIBLE
+        } else {
+            autoTypeContainerView.visibility = View.GONE
+        }
+
+        tagsAdapter = TagsProposalAdapter(requireContext(), database?.tagPool)
+        tagsCompletionView.apply {
+            threshold = 1
+            setAdapter(tagsAdapter)
+        }
+        tagsContainerView.visibility = if (database?.allowTags() == true) View.VISIBLE else View.GONE
     }
 
     override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
@@ -122,6 +153,13 @@ class GroupEditDialogFragment : DatabaseDialogFragment() {
             notesTextLayoutView = root.findViewById(R.id.group_edit_note_container)
             notesTextView = root.findViewById(R.id.group_edit_note)
             expirationView = root.findViewById(R.id.group_edit_expiration)
+            searchableContainerView = root.findViewById(R.id.group_edit_searchable_container)
+            searchableView = root.findViewById(R.id.group_edit_searchable)
+            autoTypeContainerView = root.findViewById(R.id.group_edit_auto_type_container)
+            autoTypeInheritedView = root.findViewById(R.id.group_edit_auto_type_inherited)
+            autoTypeSequenceView = root.findViewById(R.id.group_edit_auto_type_sequence)
+            tagsContainerView = root.findViewById(R.id.group_tags_label)
+            tagsCompletionView = root.findViewById(R.id.group_tags_completion_view)
 
             // Retrieve the textColor to tint the icon
             val ta = activity.theme.obtainStyledAttributes(intArrayOf(android.R.attr.textColor))
@@ -197,6 +235,19 @@ class GroupEditDialogFragment : DatabaseDialogFragment() {
         }
         expirationView.activation = groupInfo.expires
         expirationView.dateTime = groupInfo.expiryTime
+
+        // Set searchable
+        searchableView.setValue(groupInfo.searchable)
+        // Set auto-type
+        autoTypeInheritedView.setValue(groupInfo.enableAutoType)
+        autoTypeSequenceView.text = groupInfo.defaultAutoTypeSequence
+        // Set Tags
+        groupInfo.tags.let { tags ->
+            tagsCompletionView.setText("")
+            for (i in 0 until tags.size()) {
+                tagsCompletionView.addObjectSync(tags.get(i))
+            }
+        }
     }
 
     private fun retrieveGroupInfoFromViews() {
@@ -208,6 +259,10 @@ class GroupEditDialogFragment : DatabaseDialogFragment() {
         }
         mGroupInfo.expires = expirationView.activation
         mGroupInfo.expiryTime = expirationView.dateTime
+        mGroupInfo.searchable = searchableView.getValue()
+        mGroupInfo.enableAutoType = autoTypeInheritedView.getValue()
+        mGroupInfo.defaultAutoTypeSequence = autoTypeSequenceView.text.toString()
+        mGroupInfo.tags = tagsCompletionView.getTags()
     }
 
     override fun onSaveInstanceState(outState: Bundle) {
@@ -246,8 +301,8 @@ class GroupEditDialogFragment : DatabaseDialogFragment() {
     companion object {
 
         const val TAG_CREATE_GROUP = "TAG_CREATE_GROUP"
-        const val KEY_ACTION_ID = "KEY_ACTION_ID"
-        const val KEY_GROUP_INFO = "KEY_GROUP_INFO"
+        private const val KEY_ACTION_ID = "KEY_ACTION_ID"
+        private const val KEY_GROUP_INFO = "KEY_GROUP_INFO"
 
         fun create(groupInfo: GroupInfo): GroupEditDialogFragment {
             val bundle = Bundle()

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

@@ -0,0 +1,126 @@
+/*
+ * Copyright 2022 Jeremy Jamet / Kunzisoft.
+ *     
+ * This file is part of KeePassDX.
+ *
+ *  KeePassDX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePassDX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+package com.kunzisoft.keepass.activities.dialogs
+
+import android.app.Dialog
+import android.content.Context
+import android.net.Uri
+import android.os.Bundle
+import android.widget.TextView
+import androidx.appcompat.app.AlertDialog
+import com.kunzisoft.keepass.R
+import com.kunzisoft.keepass.activities.helpers.ExternalFileHelper
+import com.kunzisoft.keepass.model.MainCredential
+import com.kunzisoft.keepass.utils.UriUtil
+import com.kunzisoft.keepass.view.MainCredentialView
+
+class MainCredentialDialogFragment : DatabaseDialogFragment() {
+
+    private var mainCredentialView: MainCredentialView? = null
+
+    private var mListener: AskMainCredentialDialogListener? = null
+
+    private var mExternalFileHelper: ExternalFileHelper? = null
+
+    interface AskMainCredentialDialogListener {
+        fun onAskMainCredentialDialogPositiveClick(databaseUri: Uri?, mainCredential: MainCredential)
+        fun onAskMainCredentialDialogNegativeClick(databaseUri: Uri?, mainCredential: MainCredential)
+    }
+
+    override fun onAttach(activity: Context) {
+        super.onAttach(activity)
+        try {
+            mListener = activity as AskMainCredentialDialogListener
+        } catch (e: ClassCastException) {
+            throw ClassCastException(activity.toString()
+                    + " must implement " + AskMainCredentialDialogListener::class.java.name)
+        }
+    }
+
+    override fun onDetach() {
+        mListener = null
+        super.onDetach()
+    }
+
+    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
+        activity?.let { activity ->
+
+            var databaseUri: Uri? = null
+            arguments?.apply {
+                if (containsKey(KEY_ASK_CREDENTIAL_URI))
+                    databaseUri = getParcelable(KEY_ASK_CREDENTIAL_URI)
+            }
+
+            val builder = AlertDialog.Builder(activity)
+
+            val root = activity.layoutInflater.inflate(R.layout.fragment_main_credential, null)
+            mainCredentialView = root.findViewById(R.id.main_credential_view)
+            databaseUri?.let {
+                root.findViewById<TextView>(R.id.title_database)?.text =
+                    UriUtil.getFileData(requireContext(), it)?.name
+            }
+            builder.setView(root)
+                    // Add action buttons
+                    .setPositiveButton(android.R.string.ok) { _, _ ->
+                        mListener?.onAskMainCredentialDialogPositiveClick(
+                            databaseUri,
+                            retrieveMainCredential()
+                        )
+                    }
+                    .setNegativeButton(android.R.string.cancel) { _, _ ->
+                        mListener?.onAskMainCredentialDialogNegativeClick(
+                            databaseUri,
+                            retrieveMainCredential()
+                        )
+                    }
+
+
+            mExternalFileHelper = ExternalFileHelper(this)
+            mExternalFileHelper?.buildOpenDocument { uri ->
+                if (uri != null) {
+                    mainCredentialView?.populateKeyFileTextView(uri)
+                }
+            }
+            mainCredentialView?.setOpenKeyfileClickListener(mExternalFileHelper)
+
+            return builder.create()
+        }
+
+        return super.onCreateDialog(savedInstanceState)
+    }
+
+    private fun retrieveMainCredential(): MainCredential {
+        return mainCredentialView?.getMainCredential() ?: MainCredential()
+    }
+
+    companion object {
+
+        private const val KEY_ASK_CREDENTIAL_URI = "KEY_ASK_CREDENTIAL_URI"
+        const val TAG_ASK_MAIN_CREDENTIAL = "TAG_ASK_MAIN_CREDENTIAL"
+
+        fun getInstance(uri: Uri?): MainCredentialDialogFragment {
+            val fragment = MainCredentialDialogFragment()
+            val args = Bundle()
+            args.putParcelable(KEY_ASK_CREDENTIAL_URI, uri)
+            fragment.arguments = args
+            return fragment
+        }
+    }
+}

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

@@ -39,7 +39,7 @@ import com.kunzisoft.keepass.model.MainCredential
 import com.kunzisoft.keepass.utils.UriUtil
 import com.kunzisoft.keepass.view.KeyFileSelectionView
 
-class AssignMasterKeyDialogFragment : DatabaseDialogFragment() {
+class SetMainCredentialDialogFragment : DatabaseDialogFragment() {
 
     private var mMasterPassword: String? = null
     private var mKeyFile: Uri? = null
@@ -56,7 +56,7 @@ class AssignMasterKeyDialogFragment : DatabaseDialogFragment() {
     private var keyFileCheckBox: CompoundButton? = null
     private var keyFileSelectionView: KeyFileSelectionView? = null
 
-    private var mListener: AssignPasswordDialogListener? = null
+    private var mListener: AssignMainCredentialDialogListener? = null
 
     private var mExternalFileHelper: ExternalFileHelper? = null
 
@@ -74,7 +74,7 @@ class AssignMasterKeyDialogFragment : DatabaseDialogFragment() {
         }
     }
 
-    interface AssignPasswordDialogListener {
+    interface AssignMainCredentialDialogListener {
         fun onAssignKeyDialogPositiveClick(mainCredential: MainCredential)
         fun onAssignKeyDialogNegativeClick(mainCredential: MainCredential)
     }
@@ -82,10 +82,10 @@ class AssignMasterKeyDialogFragment : DatabaseDialogFragment() {
     override fun onAttach(activity: Context) {
         super.onAttach(activity)
         try {
-            mListener = activity as AssignPasswordDialogListener
+            mListener = activity as AssignMainCredentialDialogListener
         } catch (e: ClassCastException) {
             throw ClassCastException(activity.toString()
-                    + " must implement " + AssignPasswordDialogListener::class.java.name)
+                    + " must implement " + AssignMainCredentialDialogListener::class.java.name)
         }
     }
 
@@ -112,7 +112,7 @@ class AssignMasterKeyDialogFragment : DatabaseDialogFragment() {
             val builder = AlertDialog.Builder(activity)
             val inflater = activity.layoutInflater
 
-            rootView = inflater.inflate(R.layout.fragment_set_password, null)
+            rootView = inflater.inflate(R.layout.fragment_set_main_credential, null)
             builder.setView(rootView)
                     // Add action buttons
                     .setPositiveButton(android.R.string.ok) { _, _ -> }
@@ -254,7 +254,7 @@ class AssignMasterKeyDialogFragment : DatabaseDialogFragment() {
                     .setPositiveButton(android.R.string.ok) { _, _ ->
                         if (!verifyKeyFile()) {
                             mListener?.onAssignKeyDialogPositiveClick(retrieveMainCredential())
-                            this@AssignMasterKeyDialogFragment.dismiss()
+                            this@SetMainCredentialDialogFragment.dismiss()
                         }
                     }
                     .setNegativeButton(android.R.string.cancel) { _, _ -> }
@@ -269,7 +269,7 @@ class AssignMasterKeyDialogFragment : DatabaseDialogFragment() {
             builder.setMessage(R.string.warning_no_encryption_key)
                     .setPositiveButton(android.R.string.ok) { _, _ ->
                         mListener?.onAssignKeyDialogPositiveClick(retrieveMainCredential())
-                        this@AssignMasterKeyDialogFragment.dismiss()
+                        this@SetMainCredentialDialogFragment.dismiss()
                     }
                     .setNegativeButton(android.R.string.cancel) { _, _ -> }
             mNoKeyConfirmationDialog = builder.create()
@@ -301,8 +301,8 @@ class AssignMasterKeyDialogFragment : DatabaseDialogFragment() {
 
         private const val ALLOW_NO_MASTER_KEY_ARG = "ALLOW_NO_MASTER_KEY_ARG"
 
-        fun getInstance(allowNoMasterKey: Boolean): AssignMasterKeyDialogFragment {
-            val fragment = AssignMasterKeyDialogFragment()
+        fun getInstance(allowNoMasterKey: Boolean): SetMainCredentialDialogFragment {
+            val fragment = SetMainCredentialDialogFragment()
             val args = Bundle()
             args.putBoolean(ALLOW_NO_MASTER_KEY_ARG, allowNoMasterKey)
             fragment.arguments = args

app/src/main/java/com/kunzisoft/keepass/activities/fragments/EntryEditFragment.kt

@@ -29,10 +29,12 @@ import androidx.fragment.app.activityViewModels
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import androidx.recyclerview.widget.SimpleItemAnimator
+import com.google.android.material.textfield.TextInputLayout
 import com.kunzisoft.keepass.R
 import com.kunzisoft.keepass.activities.dialogs.ReplaceFileDialogFragment
 import com.kunzisoft.keepass.activities.dialogs.SetOTPDialogFragment
 import com.kunzisoft.keepass.adapters.EntryAttachmentsItemsAdapter
+import com.kunzisoft.keepass.adapters.TagsProposalAdapter
 import com.kunzisoft.keepass.database.element.Attachment
 import com.kunzisoft.keepass.database.element.Database
 import com.kunzisoft.keepass.database.element.template.Template
@@ -40,11 +42,10 @@ import com.kunzisoft.keepass.model.AttachmentState
 import com.kunzisoft.keepass.model.EntryAttachmentState
 import com.kunzisoft.keepass.model.EntryInfo
 import com.kunzisoft.keepass.model.StreamDirection
-import com.kunzisoft.keepass.view.TemplateEditView
-import com.kunzisoft.keepass.view.collapse
-import com.kunzisoft.keepass.view.expand
-import com.kunzisoft.keepass.view.showByFading
+import com.kunzisoft.keepass.view.*
 import com.kunzisoft.keepass.viewmodels.EntryEditViewModel
+import com.tokenautocomplete.FilteredArrayAdapter
+
 
 class EntryEditFragment: DatabaseFragment() {
 
@@ -55,6 +56,9 @@ class EntryEditFragment: DatabaseFragment() {
     private lateinit var attachmentsContainerView: ViewGroup
     private lateinit var attachmentsListView: RecyclerView
     private var attachmentsAdapter: EntryAttachmentsItemsAdapter? = null
+    private lateinit var tagsContainerView: TextInputLayout
+    private lateinit var tagsCompletionView: TagsCompletionView
+    private var tagsAdapter: FilteredArrayAdapter<String>? = null
 
     private var mTemplate: Template? = null
     private var mAllowMultipleAttachments: Boolean = false
@@ -87,6 +91,8 @@ class EntryEditFragment: DatabaseFragment() {
         templateView = view.findViewById(R.id.template_view)
         attachmentsContainerView = view.findViewById(R.id.entry_attachments_container)
         attachmentsListView = view.findViewById(R.id.entry_attachments_list)
+        tagsContainerView = view.findViewById(R.id.entry_tags_label)
+        tagsCompletionView = view.findViewById(R.id.entry_tags_completion_view)
 
         attachmentsAdapter = EntryAttachmentsItemsAdapter(requireContext())
         attachmentsListView.apply {
@@ -99,6 +105,12 @@ class EntryEditFragment: DatabaseFragment() {
             setOnIconClickListener {
                 mEntryEditViewModel.requestIconSelection(templateView.getIcon())
             }
+            setOnBackgroundColorClickListener {
+                mEntryEditViewModel.requestBackgroundColorSelection(templateView.getBackgroundColor())
+            }
+            setOnForegroundColorClickListener {
+                mEntryEditViewModel.requestForegroundColorSelection(templateView.getForegroundColor())
+            }
             setOnCustomEditionActionClickListener { field ->
                 mEntryEditViewModel.requestCustomFieldEdition(field)
             }
@@ -140,13 +152,22 @@ class EntryEditFragment: DatabaseFragment() {
         }
 
         mEntryEditViewModel.requestEntryInfoUpdate.observe(viewLifecycleOwner) {
-            mEntryEditViewModel.saveEntryInfo(it.database, it.entry, it.parent, retrieveEntryInfo())
+            val entryInfo = retrieveEntryInfo()
+            mEntryEditViewModel.saveEntryInfo(it.database, it.entry, it.parent, entryInfo)
         }
 
         mEntryEditViewModel.onIconSelected.observe(viewLifecycleOwner) { iconImage ->
             templateView.setIcon(iconImage)
         }
 
+        mEntryEditViewModel.onBackgroundColorSelected.observe(viewLifecycleOwner) { color ->
+            templateView.setBackgroundColor(color)
+        }
+
+        mEntryEditViewModel.onForegroundColorSelected.observe(viewLifecycleOwner) { color ->
+            templateView.setForegroundColor(color)
+        }
+
         mEntryEditViewModel.onPasswordSelected.observe(viewLifecycleOwner) { passwordField ->
             templateView.setPasswordField(passwordField)
         }
@@ -263,18 +284,34 @@ class EntryEditFragment: DatabaseFragment() {
                 attachmentsContainerView.expand(true)
             }
         }
+
+        tagsAdapter = TagsProposalAdapter(requireContext(), database?.tagPool)
+        tagsCompletionView.apply {
+            threshold = 1
+            setAdapter(tagsAdapter)
+        }
+        tagsContainerView.visibility = if (database?.allowTags() == true) View.VISIBLE else View.GONE
     }
 
     private fun assignEntryInfo(entryInfo: EntryInfo?) {
         // Populate entry views
         templateView.setEntryInfo(entryInfo)
 
+        // Set Tags
+        entryInfo?.tags?.let { tags ->
+            tagsCompletionView.setText("")
+            for (i in 0 until tags.size()) {
+                tagsCompletionView.addObjectSync(tags.get(i))
+            }
+        }
+
         // Manage attachments
         setAttachments(entryInfo?.attachments ?: listOf())
     }
 
     private fun retrieveEntryInfo(): EntryInfo {
         val entryInfo = templateView.getEntryInfo()
+        entryInfo.tags = tagsCompletionView.getTags()
         entryInfo.attachments = getAttachments().toMutableList()
         return entryInfo
     }

app/src/main/java/com/kunzisoft/keepass/activities/fragments/EntryFragment.kt

@@ -41,8 +41,9 @@ class EntryFragment: DatabaseFragment() {
     private lateinit var attachmentsListView: RecyclerView
     private var attachmentsAdapter: EntryAttachmentsItemsAdapter? = null
 
+    private lateinit var customDataView: TextView
+
     private lateinit var uuidContainerView: View
-    private lateinit var uuidView: TextView
     private lateinit var uuidReferenceView: TextView
 
     private var mClipboardHelper: ClipboardHelper? = null
@@ -84,11 +85,13 @@ class EntryFragment: DatabaseFragment() {
         creationDateView = view.findViewById(R.id.entry_created)
         modificationDateView = view.findViewById(R.id.entry_modified)
 
+        // TODO Custom data
+        // customDataView = view.findViewById(R.id.entry_custom_data)
+
         uuidContainerView = view.findViewById(R.id.entry_UUID_container)
         uuidContainerView.apply {
             visibility = if (PreferencesUtil.showUUID(context)) View.VISIBLE else View.GONE
         }
-        uuidView = view.findViewById(R.id.entry_UUID)
         uuidReferenceView = view.findViewById(R.id.entry_UUID_reference)
 
         mEntryViewModel.entryInfoHistory.observe(viewLifecycleOwner) { entryInfoHistory ->
@@ -156,11 +159,14 @@ class EntryFragment: DatabaseFragment() {
         assignAttachments(entryInfo?.attachments ?: listOf())
 
         // Assign dates
-        assignCreationDate(entryInfo?.creationTime)
-        assignModificationDate(entryInfo?.lastModificationTime)
+        creationDateView.text = entryInfo?.creationTime?.getDateTimeString(resources)
+        modificationDateView.text = entryInfo?.lastModificationTime?.getDateTimeString(resources)
+
+        // TODO Custom data
+        // customDataView.text = entryInfo?.customData?.toString()
 
         // Assign special data
-        assignUUID(entryInfo?.id)
+        uuidReferenceView.text = UuidUtil.toHexString(entryInfo?.id)
     }
 
     private fun showClipboardDialog() {
@@ -191,19 +197,6 @@ class EntryFragment: DatabaseFragment() {
         templateView.reload()
     }
 
-    private fun assignCreationDate(date: DateInstant?) {
-        creationDateView.text = date?.getDateTimeString(resources)
-    }
-
-    private fun assignModificationDate(date: DateInstant?) {
-        modificationDateView.text = date?.getDateTimeString(resources)
-    }
-
-    private fun assignUUID(uuid: UUID?) {
-        uuidView.text = uuid?.toString()
-        uuidReferenceView.text = UuidUtil.toHexString(uuid)
-    }
-
     /* -------------
      * Attachments
      * -------------

app/src/main/java/com/kunzisoft/keepass/activities/fragments/GroupFragment.kt

@@ -20,7 +20,6 @@
 package com.kunzisoft.keepass.activities.fragments
 
 import android.content.Context
-import android.content.Intent
 import android.os.Bundle
 import android.util.Log
 import android.view.*
@@ -34,12 +33,11 @@ import com.kunzisoft.keepass.activities.EntryEditActivity
 import com.kunzisoft.keepass.activities.dialogs.SortDialogFragment
 import com.kunzisoft.keepass.activities.helpers.EntrySelectionHelper
 import com.kunzisoft.keepass.activities.helpers.SpecialMode
-import com.kunzisoft.keepass.adapters.NodeAdapter
+import com.kunzisoft.keepass.adapters.NodesAdapter
 import com.kunzisoft.keepass.database.element.Database
 import com.kunzisoft.keepass.database.element.Group
 import com.kunzisoft.keepass.database.element.SortNodeEnum
 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.settings.PreferencesUtil
 import com.kunzisoft.keepass.tasks.ActionRunnable
@@ -50,10 +48,11 @@ class GroupFragment : DatabaseFragment(), SortDialogFragment.SortSelectionListen
 
     private var nodeClickListener: NodeClickListener? = null
     private var onScrollListener: OnScrollListener? = null
+    private var groupRefreshed: GroupRefreshedListener? = null
 
     private var mNodesRecyclerView: RecyclerView? = null
     private var mLayoutManager: LinearLayoutManager? = null
-    private var mAdapter: NodeAdapter? = null
+    private var mAdapter: NodesAdapter? = null
 
     private val mGroupViewModel: GroupViewModel by activityViewModels()
 
@@ -102,12 +101,14 @@ class GroupFragment : DatabaseFragment(), SortDialogFragment.SortSelectionListen
 
     override fun onAttach(context: Context) {
         super.onAttach(context)
+
+        // TODO Change to ViewModel
         try {
             nodeClickListener = context as NodeClickListener
         } catch (e: ClassCastException) {
             // The activity doesn't implement the interface, throw exception
             throw ClassCastException(context.toString()
-                    + " must implement " + NodeAdapter.NodeClickCallback::class.java.name)
+                    + " must implement " + NodesAdapter.NodeClickCallback::class.java.name)
         }
 
         try {
@@ -115,14 +116,24 @@ class GroupFragment : DatabaseFragment(), SortDialogFragment.SortSelectionListen
         } catch (e: ClassCastException) {
             onScrollListener = null
             // Context menu can be omit
-            Log.w(TAG, context.toString()
+            Log.w(
+                TAG, context.toString()
                     + " must implement " + RecyclerView.OnScrollListener::class.java.name)
         }
+
+        try {
+            groupRefreshed = context as GroupRefreshedListener
+        } catch (e: ClassCastException) {
+            // The activity doesn't implement the interface, throw exception
+            throw ClassCastException(context.toString()
+                    + " must implement " + GroupRefreshedListener::class.java.name)
+        }
     }
 
     override fun onDetach() {
         nodeClickListener = null
         onScrollListener = null
+        groupRefreshed = null
         super.onDetach()
     }
 
@@ -138,10 +149,11 @@ class GroupFragment : DatabaseFragment(), SortDialogFragment.SortSelectionListen
 
         contextThemed?.let { context ->
             database?.let { database ->
-                mAdapter = NodeAdapter(context, database).apply {
-                    setOnNodeClickListener(object : NodeAdapter.NodeClickCallback {
+                mAdapter = NodesAdapter(context, database).apply {
+                    setOnNodeClickListener(object : NodesAdapter.NodeClickCallback {
                         override fun onNodeClick(database: Database, node: Node) {
-                            if (nodeActionSelectionMode) {
+                            if (mCurrentGroup?.isVirtual == false
+                                && nodeActionSelectionMode) {
                                 if (listActionNodes.contains(node)) {
                                     // Remove selected item if already selected
                                     listActionNodes.remove(node)
@@ -158,7 +170,8 @@ class GroupFragment : DatabaseFragment(), SortDialogFragment.SortSelectionListen
                         }
 
                         override fun onNodeLongClick(database: Database, node: Node): Boolean {
-                            if (nodeActionPasteMode == PasteMode.UNDEFINED) {
+                            if (mCurrentGroup?.isVirtual == false
+                                && nodeActionPasteMode == PasteMode.UNDEFINED) {
                                 // Select the first item after a long click
                                 if (!listActionNodes.contains(node))
                                     listActionNodes.add(node)
@@ -195,7 +208,7 @@ class GroupFragment : DatabaseFragment(), SortDialogFragment.SortSelectionListen
         super.onCreateView(inflater, container, savedInstanceState)
         // To apply theme
         return inflater.cloneInContext(contextThemed)
-                .inflate(R.layout.fragment_group, container, false)
+                .inflate(R.layout.fragment_nodes, container, false)
     }
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
@@ -246,9 +259,9 @@ class GroupFragment : DatabaseFragment(), SortDialogFragment.SortSelectionListen
     private fun rebuildList() {
         try {
             // Add elements to the list
-            mCurrentGroup?.let { mainGroup ->
+            mCurrentGroup?.let { currentGroup ->
                 // Thrown an exception when sort cannot be performed
-                mAdapter?.rebuildList(mainGroup)
+                mAdapter?.rebuildList(currentGroup)
             }
         } catch (e:Exception) {
             Log.e(TAG, "Unable to rebuild the list", e)
@@ -260,6 +273,8 @@ class GroupFragment : DatabaseFragment(), SortDialogFragment.SortSelectionListen
         } else {
             notFoundView?.visibility = View.GONE
         }
+
+        groupRefreshed?.onGroupRefreshed()
     }
 
     override fun onSortSelected(sortNodeEnum: SortNodeEnum,
@@ -295,12 +310,14 @@ class GroupFragment : DatabaseFragment(), SortDialogFragment.SortSelectionListen
                                     PreferencesUtil.getListSort(context),
                                     PreferencesUtil.getAscendingSort(context),
                                     PreferencesUtil.getGroupsBeforeSort(context),
-                                        PreferencesUtil.getRecycleBinBottomSort(context))
+                                    PreferencesUtil.getRecycleBinBottomSort(context)
+                                )
                             } else {
                                 SortDialogFragment.getInstance(
                                     PreferencesUtil.getListSort(context),
                                     PreferencesUtil.getAscendingSort(context),
-                                        PreferencesUtil.getGroupsBeforeSort(context))
+                                    PreferencesUtil.getGroupsBeforeSort(context)
+                                )
                             }
 
                     sortDialogFragment.show(childFragmentManager, "sortDialog")
@@ -447,6 +464,10 @@ class GroupFragment : DatabaseFragment(), SortDialogFragment.SortSelectionListen
         fun onScrolled(dy: Int)
     }
 
+    interface GroupRefreshedListener {
+        fun onGroupRefreshed()
+    }
+
     companion object {
         private val TAG = GroupFragment::class.java.name
     }

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

@@ -4,9 +4,9 @@ import android.net.Uri
 import android.os.Bundle
 import androidx.activity.viewModels
 import com.kunzisoft.keepass.activities.stylish.StylishActivity
-import com.kunzisoft.keepass.app.database.CipherDatabaseEntity
 import com.kunzisoft.keepass.database.action.DatabaseTaskProvider
 import com.kunzisoft.keepass.database.element.Database
+import com.kunzisoft.keepass.model.CipherEncryptDatabase
 import com.kunzisoft.keepass.model.MainCredential
 import com.kunzisoft.keepass.tasks.ActionRunnable
 import com.kunzisoft.keepass.viewmodels.DatabaseViewModel
@@ -59,9 +59,9 @@ abstract class DatabaseActivity: StylishActivity(), DatabaseRetrieval {
     fun loadDatabase(databaseUri: Uri,
                      mainCredential: MainCredential,
                      readOnly: Boolean,
-                     cipherEntity: CipherDatabaseEntity?,
+                     cipherEncryptDatabase: CipherEncryptDatabase?,
                      fixDuplicateUuid: Boolean) {
-        mDatabaseTaskProvider?.startDatabaseLoad(databaseUri, mainCredential, readOnly, cipherEntity, fixDuplicateUuid)
+        mDatabaseTaskProvider?.startDatabaseLoad(databaseUri, mainCredential, readOnly, cipherEncryptDatabase, fixDuplicateUuid)
     }
 
     protected fun closeDatabase() {

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

@@ -62,6 +62,7 @@ abstract class DatabaseLockActivity : DatabaseModeActivity(),
     private var mExitLock: Boolean = false
 
     protected var mDatabaseReadOnly: Boolean = true
+    protected var mMergeDataAllowed: Boolean = false
     private var mAutoSaveEnable: Boolean = true
 
     protected var mIconDrawableFactory: IconDrawableFactory? = null
@@ -87,9 +88,15 @@ abstract class DatabaseLockActivity : DatabaseModeActivity(),
             mDatabaseTaskProvider?.startDatabaseSave(save)
         }
 
+        mDatabaseViewModel.mergeDatabase.observe(this) {
+            mDatabaseTaskProvider?.startDatabaseMerge()
+        }
+
         mDatabaseViewModel.reloadDatabase.observe(this) { fixDuplicateUuid ->
+            mDatabaseTaskProvider?.askToStartDatabaseReload(mDatabase?.dataModifiedSinceLastLoading != false) {
                 mDatabaseTaskProvider?.startDatabaseReload(fixDuplicateUuid)
             }
+        }
 
         mDatabaseViewModel.saveName.observe(this) {
             mDatabaseTaskProvider?.startDatabaseSaveName(it.oldValue, it.newValue, it.save)
@@ -197,6 +204,7 @@ abstract class DatabaseLockActivity : DatabaseModeActivity(),
             }
 
             mDatabaseReadOnly = database.isReadOnly
+            mMergeDataAllowed = database.isMergeDataAllowed()
             mIconDrawableFactory = database.iconDrawableFactory
 
             checkRegister()
@@ -212,6 +220,7 @@ abstract class DatabaseLockActivity : DatabaseModeActivity(),
     ) {
         super.onDatabaseActionFinished(database, actionTask, result)
         when (actionTask) {
+            DatabaseTaskNotificationService.ACTION_DATABASE_MERGE_TASK,
             DatabaseTaskNotificationService.ACTION_DATABASE_RELOAD_TASK -> {
                 // Reload the current activity
                 if (result.isSuccess) {
@@ -254,9 +263,23 @@ abstract class DatabaseLockActivity : DatabaseModeActivity(),
         mDatabaseTaskProvider?.startDatabaseSave(true)
     }
 
+    fun saveDatabaseTo(uri: Uri) {
+        mDatabaseTaskProvider?.startDatabaseSave(true, uri)
+    }
+
+    fun mergeDatabase() {
+        mDatabaseTaskProvider?.startDatabaseMerge()
+    }
+
+    fun mergeDatabaseFrom(uri: Uri, mainCredential: MainCredential) {
+        mDatabaseTaskProvider?.startDatabaseMerge(uri, mainCredential)
+    }
+
     fun reloadDatabase() {
+        mDatabaseTaskProvider?.askToStartDatabaseReload(mDatabase?.dataModifiedSinceLastLoading != false) {
             mDatabaseTaskProvider?.startDatabaseReload(false)
         }
+    }
 
     fun createEntry(newEntry: Entry,
                     parent: Group) {

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

@@ -1,6 +1,8 @@
 package com.kunzisoft.keepass.activities.legacy
 
 import android.os.Bundle
+import android.os.Handler
+import android.os.Looper
 import android.view.View
 import android.widget.Toast
 import com.kunzisoft.keepass.R
@@ -11,6 +13,7 @@ import com.kunzisoft.keepass.model.SearchInfo
 import com.kunzisoft.keepass.settings.PreferencesUtil
 import com.kunzisoft.keepass.view.SpecialModeView
 
+
 /**
  * Activity to manage database special mode (ie: selection mode)
  */
@@ -63,8 +66,7 @@ abstract class DatabaseModeActivity : DatabaseActivity() {
             EntrySelectionHelper.removeModesFromIntent(intent)
             EntrySelectionHelper.removeInfoFromIntent(intent)
             if (mSpecialMode != SpecialMode.DEFAULT) {
-                // To move the app in background
-                moveTaskToBack(true)
+                backToTheMainAppAndFinish()
             }
         }
     }
@@ -77,8 +79,7 @@ abstract class DatabaseModeActivity : DatabaseActivity() {
             EntrySelectionHelper.removeModesFromIntent(intent)
             EntrySelectionHelper.removeInfoFromIntent(intent)
             if (mSpecialMode != SpecialMode.DEFAULT) {
-                // To move the app in background
-                moveTaskToBack(true)
+                backToTheMainAppAndFinish()
             }
         }
     }
@@ -88,11 +89,19 @@ abstract class DatabaseModeActivity : DatabaseActivity() {
             // To get the app caller, only for IntentSender
             super.onBackPressed()
         } else {
-            // To move the app in background
-            moveTaskToBack(true)
+            backToTheMainAppAndFinish()
         }
     }
 
+    private fun backToTheMainAppAndFinish() {
+        // To move the app in background and return to the main app
+        moveTaskToBack(true)
+        // To remove this instance in the OS app selector
+        Handler(Looper.getMainLooper()).postDelayed({
+            finish()
+        }, 500)
+    }
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
@@ -160,12 +169,17 @@ abstract class DatabaseModeActivity : DatabaseActivity() {
         }
 
         // To hide home button from the regular toolbar in special mode
-        if (mSpecialMode != SpecialMode.DEFAULT) {
+        if (mSpecialMode != SpecialMode.DEFAULT
+            && hideHomeButtonIfModeIsNotDefault()) {
             supportActionBar?.setDisplayHomeAsUpEnabled(false)
             supportActionBar?.setDisplayShowHomeEnabled(false)
         }
     }
 
+    open fun hideHomeButtonIfModeIsNotDefault(): Boolean {
+        return true
+    }
+
     private fun blockAutofill(searchInfo: SearchInfo?) {
         val webDomain = searchInfo?.webDomain
         val applicationId = searchInfo?.applicationId

app/src/main/java/com/kunzisoft/keepass/activities/stylish/Stylish.kt

@@ -69,8 +69,10 @@ object Stylish {
             context.getString(R.string.list_style_name_night) -> context.getString(R.string.list_style_name_light)
             context.getString(R.string.list_style_name_black) -> context.getString(R.string.list_style_name_white)
             context.getString(R.string.list_style_name_dark) -> context.getString(R.string.list_style_name_clear)
+            context.getString(R.string.list_style_name_simple_night) -> context.getString(R.string.list_style_name_simple)
             context.getString(R.string.list_style_name_blue_night) -> context.getString(R.string.list_style_name_blue)
             context.getString(R.string.list_style_name_red_night) -> context.getString(R.string.list_style_name_red)
+            context.getString(R.string.list_style_name_reply_night) -> context.getString(R.string.list_style_name_reply)
             context.getString(R.string.list_style_name_purple_dark) -> context.getString(R.string.list_style_name_purple)
             else -> styleString
         }
@@ -81,8 +83,10 @@ object Stylish {
             context.getString(R.string.list_style_name_light) -> context.getString(R.string.list_style_name_night)
             context.getString(R.string.list_style_name_white) -> context.getString(R.string.list_style_name_black)
             context.getString(R.string.list_style_name_clear) -> context.getString(R.string.list_style_name_dark)
+            context.getString(R.string.list_style_name_simple) -> context.getString(R.string.list_style_name_simple_night)
             context.getString(R.string.list_style_name_blue) -> context.getString(R.string.list_style_name_blue_night)
             context.getString(R.string.list_style_name_red) -> context.getString(R.string.list_style_name_red_night)
+            context.getString(R.string.list_style_name_reply) -> context.getString(R.string.list_style_name_reply_night)
             context.getString(R.string.list_style_name_purple) -> context.getString(R.string.list_style_name_purple_dark)
             else -> styleString
         }
@@ -113,10 +117,14 @@ object Stylish {
             context.getString(R.string.list_style_name_black) -> R.style.KeepassDXStyle_Black
             context.getString(R.string.list_style_name_clear) -> R.style.KeepassDXStyle_Clear
             context.getString(R.string.list_style_name_dark) -> R.style.KeepassDXStyle_Dark
+            context.getString(R.string.list_style_name_simple) -> R.style.KeepassDXStyle_Simple
+            context.getString(R.string.list_style_name_simple_night) -> R.style.KeepassDXStyle_Simple_Night
             context.getString(R.string.list_style_name_blue) -> R.style.KeepassDXStyle_Blue
             context.getString(R.string.list_style_name_blue_night) -> R.style.KeepassDXStyle_Blue_Night
             context.getString(R.string.list_style_name_red) -> R.style.KeepassDXStyle_Red
             context.getString(R.string.list_style_name_red_night) -> R.style.KeepassDXStyle_Red_Night
+            context.getString(R.string.list_style_name_reply) -> R.style.KeepassDXStyle_Reply
+            context.getString(R.string.list_style_name_reply_night) -> R.style.KeepassDXStyle_Reply_Night
             context.getString(R.string.list_style_name_purple) -> R.style.KeepassDXStyle_Purple
             context.getString(R.string.list_style_name_purple_dark) -> R.style.KeepassDXStyle_Purple_Dark
             else -> R.style.KeepassDXStyle_Light

app/src/main/java/com/kunzisoft/keepass/activities/stylish/StylishActivity.kt

@@ -28,7 +28,7 @@ import android.util.Log
 import android.view.WindowManager
 import androidx.annotation.StyleRes
 import androidx.appcompat.app.AppCompatActivity
-import com.kunzisoft.keepass.settings.NestedAppSettingsFragment.Companion.DATABASE_APPEARANCE_PREFERENCE_CHANGED
+import com.kunzisoft.keepass.settings.NestedAppSettingsFragment.Companion.DATABASE_PREFERENCE_CHANGED
 
 /**
  * Stylish Hide Activity that apply a dynamic style and sets FLAG_SECURE to prevent screenshots / from
@@ -89,8 +89,8 @@ abstract class StylishActivity : AppCompatActivity() {
         super.onResume()
 
         if ((customStyle && Stylish.getThemeId(this) != this.themeId)
-            || DATABASE_APPEARANCE_PREFERENCE_CHANGED) {
-            DATABASE_APPEARANCE_PREFERENCE_CHANGED = false
+            || DATABASE_PREFERENCE_CHANGED) {
+            DATABASE_PREFERENCE_CHANGED = false
             Log.d(this.javaClass.name, "Theme change detected, restarting activity")
             recreateActivity()
         }

app/src/main/java/com/kunzisoft/keepass/activities/stylish/StylishFragment.kt

@@ -23,11 +23,13 @@ import android.content.Context
 import android.graphics.Color
 import android.os.Build
 import android.os.Bundle
+import android.util.Log
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import androidx.annotation.StyleRes
 import androidx.appcompat.view.ContextThemeWrapper
+import androidx.core.view.WindowInsetsControllerCompat
 import androidx.fragment.app.Fragment
 
 abstract class StylishFragment : Fragment() {
@@ -47,27 +49,41 @@ abstract class StylishFragment : Fragment() {
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
             val window = requireActivity().window
             val defaultColor = Color.BLACK
-
+            val windowInset = WindowInsetsControllerCompat(window, window.decorView)
             try {
                 val taStatusBarColor = contextThemed?.theme?.obtainStyledAttributes(intArrayOf(android.R.attr.statusBarColor))
                 window.statusBarColor = taStatusBarColor?.getColor(0, defaultColor) ?: defaultColor
                 taStatusBarColor?.recycle()
-            } catch (e: Exception) {}
+            } catch (e: Exception) {
+                Log.e(TAG, "Unable to retrieve theme : status bar color", e)
+            }
             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                 try {
                     val taWindowStatusLight = contextThemed?.theme?.obtainStyledAttributes(intArrayOf(android.R.attr.windowLightStatusBar))
-                    if (taWindowStatusLight?.getBoolean(0, false) == true) {
-                        @Suppress("DEPRECATION")
-                        window.decorView.systemUiVisibility = View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR
-                    }
+                    windowInset.isAppearanceLightStatusBars = taWindowStatusLight
+                            ?.getBoolean(0, false) == true
                     taWindowStatusLight?.recycle()
-                } catch (e: Exception) {}
+                } catch (e: Exception) {
+                    Log.e(TAG, "Unable to retrieve theme : window light status bar", e)
+                }
             }
             try {
                 val taNavigationBarColor = contextThemed?.theme?.obtainStyledAttributes(intArrayOf(android.R.attr.navigationBarColor))
                 window.navigationBarColor = taNavigationBarColor?.getColor(0, defaultColor) ?: defaultColor
                 taNavigationBarColor?.recycle()
-            } catch (e: Exception) {}
+            } catch (e: Exception) {
+                Log.e(TAG, "Unable to retrieve theme : navigation bar color", e)
+            }
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O_MR1) {
+                try {
+                    val taWindowLightNavigationBar = contextThemed?.theme?.obtainStyledAttributes(intArrayOf(android.R.attr.windowLightNavigationBar))
+                    windowInset.isAppearanceLightNavigationBars = taWindowLightNavigationBar
+                        ?.getBoolean(0, false) == true
+                    taWindowLightNavigationBar?.recycle()
+                } catch (e: Exception) {
+                    Log.e(TAG, "Unable to retrieve theme : navigation light navigation bar", e)
+                }
+            }
         }
         return super.onCreateView(inflater, container, savedInstanceState)
     }
@@ -76,4 +92,8 @@ abstract class StylishFragment : Fragment() {
         contextThemed = null
         super.onDetach()
     }
+
+    companion object {
+        private val TAG = StylishFragment::class.java.simpleName
+    }
 }

app/src/main/java/com/kunzisoft/keepass/adapters/BreadcrumbAdapter.kt

@@ -0,0 +1,150 @@
+package com.kunzisoft.keepass.adapters
+
+import android.annotation.SuppressLint
+import android.content.Context
+import android.graphics.Color
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ImageView
+import android.widget.TextView
+import androidx.recyclerview.widget.RecyclerView
+import com.kunzisoft.keepass.R
+import com.kunzisoft.keepass.database.element.Group
+import com.kunzisoft.keepass.database.element.node.Node
+import com.kunzisoft.keepass.database.element.node.Type
+import com.kunzisoft.keepass.icons.IconDrawableFactory
+import com.kunzisoft.keepass.settings.PreferencesUtil
+import com.kunzisoft.keepass.view.strikeOut
+
+class BreadcrumbAdapter(val context: Context)
+    : RecyclerView.Adapter<BreadcrumbAdapter.BreadcrumbGroupViewHolder>() {
+
+    private val inflater: LayoutInflater = LayoutInflater.from(context)
+    var iconDrawableFactory: IconDrawableFactory? = null
+        @SuppressLint("NotifyDataSetChanged")
+        set(value) {
+            field = value
+            notifyDataSetChanged()
+        }
+    private var mNodeBreadcrumb: MutableList<Node?> = mutableListOf()
+    var onItemClickListener: ((item: Node, position: Int)->Unit)? = null
+    var onLongItemClickListener: ((item: Node, position: Int)->Unit)? = null
+
+    private var mShowNumberEntries = false
+    private var mShowUUID = false
+    private var mIconColor: Int = 0
+
+    init {
+        mShowNumberEntries = PreferencesUtil.showNumberEntries(context)
+        mShowUUID = PreferencesUtil.showUUID(context)
+
+        // Retrieve the textColor to tint the icon
+        val taTextColor = context.theme.obtainStyledAttributes(intArrayOf(R.attr.textColorInverse))
+        mIconColor = taTextColor.getColor(0, Color.WHITE)
+        taTextColor.recycle()
+    }
+
+    @SuppressLint("NotifyDataSetChanged")
+    fun setNode(node: Node?) {
+        mNodeBreadcrumb.clear()
+        node?.let {
+            var currentNode = it
+            mNodeBreadcrumb.add(0, currentNode)
+            while (currentNode.containsParent()) {
+                currentNode.parent?.let { parent ->
+                    currentNode = parent
+                    mNodeBreadcrumb.add(0, currentNode)
+                }
+            }
+        }
+        notifyDataSetChanged()
+    }
+
+    override fun getItemViewType(position: Int): Int {
+        return when (position) {
+            mNodeBreadcrumb.size - 1 -> 0
+            else -> 1
+        }
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): BreadcrumbGroupViewHolder {
+        return BreadcrumbGroupViewHolder(inflater.inflate(
+            when (viewType) {
+                0 -> R.layout.item_group
+                else -> R.layout.item_breadcrumb
+            }, parent, false)
+        )
+    }
+
+    override fun onBindViewHolder(holder: BreadcrumbGroupViewHolder, position: Int) {
+        val node = mNodeBreadcrumb[position]
+
+        holder.groupNameView.apply {
+            text = node?.title ?: ""
+            strikeOut(node?.isCurrentlyExpires ?: false)
+        }
+
+        holder.itemView.apply {
+            setOnClickListener {
+                node?.let {
+                    onItemClickListener?.invoke(it, position)
+                }
+            }
+            setOnLongClickListener {
+                node?.let {
+                    onLongItemClickListener?.invoke(it, position)
+                }
+                true
+            }
+        }
+
+        if (node?.type == Type.GROUP) {
+            (node as Group).let { group ->
+
+                holder.groupIconView?.let { imageView ->
+                    iconDrawableFactory?.assignDatabaseIcon(
+                        imageView,
+                        group.icon,
+                        mIconColor
+                    )
+                }
+
+                holder.groupNumbersView?.apply {
+                    if (mShowNumberEntries) {
+                        group.refreshNumberOfChildEntries(Group.ChildFilter.getDefaults(context))
+                        text = group.numberOfChildEntries.toString()
+                        visibility = View.VISIBLE
+                    } else {
+                        visibility = View.GONE
+                    }
+                }
+
+                holder.groupMetaView?.apply {
+                    val meta = group.nodeId.toVisualString()
+                    visibility = if (meta != null
+                        && !group.isVirtual
+                        && mShowUUID
+                    ) {
+                        text = meta
+                        View.VISIBLE
+                    } else {
+                        View.GONE
+                    }
+                }
+            }
+        }
+
+    }
+
+    override fun getItemCount(): Int {
+        return mNodeBreadcrumb.size
+    }
+
+    inner class BreadcrumbGroupViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
+        var groupIconView: ImageView? = itemView.findViewById(R.id.group_icon)
+        var groupNumbersView: TextView? = itemView.findViewById(R.id.group_numbers)
+        var groupNameView: TextView = itemView.findViewById(R.id.group_name)
+        var groupMetaView: TextView? = itemView.findViewById(R.id.group_meta)
+    }
+}

app/src/main/java/com/kunzisoft/keepass/adapters/NodesAdapter.kt

@@ -26,14 +26,13 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.ImageView
-import android.widget.ProgressBar
 import android.widget.TextView
 import android.widget.Toast
 import androidx.annotation.ColorInt
-import androidx.core.content.ContextCompat
 import androidx.recyclerview.widget.RecyclerView
 import androidx.recyclerview.widget.SortedList
 import androidx.recyclerview.widget.SortedListAdapterCallback
+import com.google.android.material.progressindicator.CircularProgressIndicator
 import com.kunzisoft.keepass.R
 import com.kunzisoft.keepass.database.element.Database
 import com.kunzisoft.keepass.database.element.Entry
@@ -55,9 +54,9 @@ import java.util.*
  * Create node list adapter with contextMenu or not
  * @param context Context to use
  */
-class NodeAdapter (private val context: Context,
+class NodesAdapter (private val context: Context,
                     private val database: Database)
-    : RecyclerView.Adapter<NodeAdapter.NodeViewHolder>() {
+    : RecyclerView.Adapter<NodesAdapter.NodeViewHolder>() {
 
     private var mNodeComparator: Comparator<NodeVersionedInterface<Group>>? = null
     private val mNodeSortedListCallback: NodeSortedListCallback
@@ -74,22 +73,29 @@ class NodeAdapter (private val context: Context,
     private var mNumberChildrenTextDefaultDimension: Float = 0F
     private var mIconDefaultDimension: Float = 0F
 
+    private var mShowEntryColors: Boolean = true
     private var mShowUserNames: Boolean = true
     private var mShowNumberEntries: Boolean = true
     private var mShowOTP: Boolean = false
     private var mShowUUID: Boolean = false
     private var mEntryFilters = arrayOf<Group.ChildFilter>()
+    private var mOldVirtualGroup = false
+    private var mVirtualGroup = false
 
     private var mActionNodesList = LinkedList<Node>()
     private var mNodeClickCallback: NodeClickCallback? = null
     private var mClipboardHelper = ClipboardHelper(context)
 
     @ColorInt
-    private val mContentSelectionColor: Int
+    private val mTextColorPrimary: Int
     @ColorInt
-    private val mIconGroupColor: Int
+    private val mTextColor: Int
     @ColorInt
-    private val mIconEntryColor: Int
+    private val mTextColorSecondary: Int
+    @ColorInt
+    private val mColorAccentLight: Int
+    @ColorInt
+    private val mColorOnAccentColor: Int
 
     /**
      * Determine if the adapter contains or not any element
@@ -106,16 +112,26 @@ class NodeAdapter (private val context: Context,
         this.mNodeSortedListCallback = NodeSortedListCallback()
         this.mNodeSortedList = SortedList(Node::class.java, mNodeSortedListCallback)
 
-        // Color of content selection
-        this.mContentSelectionColor = ContextCompat.getColor(context, R.color.white)
         // Retrieve the color to tint the icon
         val taTextColorPrimary = context.theme.obtainStyledAttributes(intArrayOf(android.R.attr.textColorPrimary))
-        this.mIconGroupColor = taTextColorPrimary.getColor(0, Color.BLACK)
+        this.mTextColorPrimary = taTextColorPrimary.getColor(0, Color.BLACK)
         taTextColorPrimary.recycle()
-        // In two times to fix bug compilation
+        // To get text color
         val taTextColor = context.theme.obtainStyledAttributes(intArrayOf(android.R.attr.textColor))
-        this.mIconEntryColor = taTextColor.getColor(0, Color.BLACK)
+        this.mTextColor = taTextColor.getColor(0, Color.BLACK)
         taTextColor.recycle()
+        // To get text color secondary
+        val taTextColorSecondary = context.theme.obtainStyledAttributes(intArrayOf(android.R.attr.textColorSecondary))
+        this.mTextColorSecondary = taTextColorSecondary.getColor(0, Color.BLACK)
+        taTextColorSecondary.recycle()
+        // To get background color for selection
+        val taColorAccentLight = context.theme.obtainStyledAttributes(intArrayOf(R.attr.colorAccentLight))
+        this.mColorAccentLight = taColorAccentLight.getColor(0, Color.GRAY)
+        taColorAccentLight.recycle()
+        // To get text color for selection
+        val taColorOnAccentColor = context.theme.obtainStyledAttributes(intArrayOf(R.attr.colorOnAccentColor))
+        this.mColorOnAccentColor = taColorOnAccentColor.getColor(0, Color.WHITE)
+        taColorOnAccentColor.recycle()
     }
 
     private fun assignPreferences() {
@@ -130,6 +146,7 @@ class NodeAdapter (private val context: Context,
                         )
                 )
 
+        this.mShowEntryColors = PreferencesUtil.showEntryColors(context)
         this.mShowUserNames = PreferencesUtil.showUsernamesListEntries(context)
         this.mShowNumberEntries = PreferencesUtil.showNumberEntries(context)
         this.mShowOTP = PreferencesUtil.showOTPToken(context)
@@ -145,6 +162,8 @@ class NodeAdapter (private val context: Context,
      * Rebuild the list by clear and build children from the group
      */
     fun rebuildList(group: Group) {
+        mOldVirtualGroup = mVirtualGroup
+        mVirtualGroup = group.isVirtual
         assignPreferences()
         mNodeSortedList.replaceAll(group.getFilteredChildren(mEntryFilters))
     }
@@ -155,14 +174,19 @@ class NodeAdapter (private val context: Context,
         }
 
         override fun areContentsTheSame(oldItem: Node, newItem: Node): Boolean {
+            if (mOldVirtualGroup != mVirtualGroup)
+                return false
             var typeContentTheSame = true
             if (oldItem is Entry && newItem is Entry) {
                 typeContentTheSame = oldItem.getVisualTitle() == newItem.getVisualTitle()
                         && oldItem.username == newItem.username
+                        && oldItem.backgroundColor == newItem.backgroundColor
+                        && oldItem.foregroundColor == newItem.foregroundColor
                         && oldItem.getOtpElement() == newItem.getOtpElement()
                         && oldItem.containsAttachment() == newItem.containsAttachment()
             } else if (oldItem is Group && newItem is Group) {
                 typeContentTheSame = oldItem.numberOfChildEntries == newItem.numberOfChildEntries
+                        && oldItem.notes == newItem.notes
             }
             return typeContentTheSame
                     && oldItem.nodeId == newItem.nodeId
@@ -323,23 +347,6 @@ class NodeAdapter (private val context: Context,
             isSelected = mActionNodesList.contains(subNode)
         }
 
-        // Assign image
-        val iconColor = if (holder.container.isSelected)
-            mContentSelectionColor
-        else when (subNode.type) {
-            Type.GROUP -> mIconGroupColor
-            Type.ENTRY -> mIconEntryColor
-        }
-        holder.imageIdentifier?.setColorFilter(iconColor)
-        holder.icon.apply {
-            database.iconDrawableFactory.assignDatabaseIcon(this, subNode.icon, iconColor)
-            // Relative size of the icon
-            layoutParams?.apply {
-                height = (mIconDefaultDimension * mPrefSizeMultiplier).toInt()
-                width = (mIconDefaultDimension * mPrefSizeMultiplier).toInt()
-            }
-        }
-
         // Assign text
         holder.text.apply {
             text = subNode.title
@@ -348,14 +355,32 @@ class NodeAdapter (private val context: Context,
         }
         // Add meta text to show UUID
         holder.meta.apply {
-            if (mShowUUID) {
-                text = subNode.nodeId.toString()
+            val nodeId = subNode.nodeId?.toVisualString()
+            if (mShowUUID && nodeId != null) {
+                text = nodeId
                 setTextSize(mTextSizeUnit, mMetaTextDefaultDimension, mPrefSizeMultiplier)
                 visibility = View.VISIBLE
             } else {
                 visibility = View.GONE
             }
         }
+        // Add path to virtual group
+        if (mVirtualGroup) {
+            holder.path?.apply {
+                text = subNode.getPathString()
+                visibility = View.VISIBLE
+            }
+        } else {
+            holder.path?.visibility = View.GONE
+        }
+
+        // Assign icon colors
+        var iconColor = if (holder.container.isSelected)
+            mColorOnAccentColor
+        else when (subNode.type) {
+            Type.GROUP -> mTextColorPrimary
+            Type.ENTRY -> mTextColor
+        }
 
         // Specific elements for entry
         if (subNode.type == Type.ENTRY) {
@@ -398,6 +423,44 @@ class NodeAdapter (private val context: Context,
             holder.attachmentIcon?.visibility =
                     if (entry.containsAttachment()) View.VISIBLE else View.GONE
 
+            // Assign colors
+            val backgroundColor = if (mShowEntryColors) entry.backgroundColor else null
+            if (!holder.container.isSelected) {
+                if (backgroundColor != null) {
+                    holder.container.setBackgroundColor(backgroundColor)
+                } else {
+                    holder.container.setBackgroundColor(Color.TRANSPARENT)
+                }
+            } else {
+                holder.container.setBackgroundColor(mColorAccentLight)
+            }
+            val foregroundColor = if (mShowEntryColors) entry.foregroundColor else null
+            if (!holder.container.isSelected) {
+                if (foregroundColor != null) {
+                    holder.text.setTextColor(foregroundColor)
+                    holder.subText?.setTextColor(foregroundColor)
+                    holder.otpToken?.setTextColor(foregroundColor)
+                    holder.otpProgress?.setIndicatorColor(foregroundColor)
+                    holder.attachmentIcon?.setColorFilter(foregroundColor)
+                    holder.meta.setTextColor(foregroundColor)
+                    iconColor = foregroundColor
+                } else {
+                    holder.text.setTextColor(mTextColor)
+                    holder.subText?.setTextColor(mTextColorSecondary)
+                    holder.otpToken?.setTextColor(mTextColorSecondary)
+                    holder.otpProgress?.setIndicatorColor(mTextColorSecondary)
+                    holder.attachmentIcon?.setColorFilter(mTextColorSecondary)
+                    holder.meta.setTextColor(mTextColor)
+                }
+            } else {
+                holder.text.setTextColor(mColorOnAccentColor)
+                holder.subText?.setTextColor(mColorOnAccentColor)
+                holder.otpToken?.setTextColor(mColorOnAccentColor)
+                holder.otpProgress?.setIndicatorColor(mColorOnAccentColor)
+                holder.attachmentIcon?.setColorFilter(mColorOnAccentColor)
+                holder.meta.setTextColor(mColorOnAccentColor)
+            }
+
             database.stopManageEntry(entry)
         }
 
@@ -416,6 +479,17 @@ class NodeAdapter (private val context: Context,
             }
         }
 
+        // Assign image
+        holder.imageIdentifier?.setColorFilter(iconColor)
+        holder.icon.apply {
+            database.iconDrawableFactory.assignDatabaseIcon(this, subNode.icon, iconColor)
+            // Relative size of the icon
+            layoutParams?.apply {
+                height = (mIconDefaultDimension * mPrefSizeMultiplier).toInt()
+                width = (mIconDefaultDimension * mPrefSizeMultiplier).toInt()
+            }
+        }
+
         // Assign click
         holder.container.setOnClickListener {
             mNodeClickCallback?.onNodeClick(database, subNode)
@@ -430,15 +504,16 @@ class NodeAdapter (private val context: Context,
             OtpType.HOTP -> {
                 holder?.otpProgress?.apply {
                     max = 100
-                    progress = 100
+                    setProgressCompat(100, true)
                 }
             }
             OtpType.TOTP -> {
                 holder?.otpProgress?.apply {
                     max = otpElement.period
-                    progress = otpElement.secondsRemaining
+                    setProgressCompat(otpElement.secondsRemaining, true)
                 }
             }
+            null -> {}
         }
         holder?.otpToken?.apply {
             text = otpElement?.token
@@ -497,8 +572,9 @@ class NodeAdapter (private val context: Context,
         var text: TextView = itemView.findViewById(R.id.node_text)
         var subText: TextView? = itemView.findViewById(R.id.node_subtext)
         var meta: TextView = itemView.findViewById(R.id.node_meta)
+        var path: TextView? = itemView.findViewById(R.id.node_path)
         var otpContainer: ViewGroup? = itemView.findViewById(R.id.node_otp_container)
-        var otpProgress: ProgressBar? = itemView.findViewById(R.id.node_otp_progress)
+        var otpProgress: CircularProgressIndicator? = itemView.findViewById(R.id.node_otp_progress)
         var otpToken: TextView? = itemView.findViewById(R.id.node_otp_token)
         var otpRunnable: OtpRunnable = OtpRunnable(otpContainer)
         var numberChildren: TextView? = itemView.findViewById(R.id.node_child_numbers)
@@ -506,6 +582,6 @@ class NodeAdapter (private val context: Context,
     }
 
     companion object {
-        private val TAG = NodeAdapter::class.java.name
+        private val TAG = NodesAdapter::class.java.name
     }
 }

app/src/main/java/com/kunzisoft/keepass/adapters/SearchEntryCursorAdapter.kt

@@ -1,180 +0,0 @@
-/*
- * Copyright 2019 Jeremy Jamet / Kunzisoft.
- *
- * This file is part of KeePassDX.
- *
- *  KeePassDX is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 3 of the License, or
- *  (at your option) any later version.
- *
- *  KeePassDX is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-package com.kunzisoft.keepass.adapters
-
-import android.content.Context
-import android.database.Cursor
-import android.graphics.Color
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import android.widget.ImageView
-import android.widget.TextView
-import com.kunzisoft.keepass.R
-import com.kunzisoft.keepass.database.cursor.EntryCursorKDB
-import com.kunzisoft.keepass.database.cursor.EntryCursorKDBX
-import com.kunzisoft.keepass.database.element.Database
-import com.kunzisoft.keepass.database.element.Entry
-import com.kunzisoft.keepass.database.element.Group
-import com.kunzisoft.keepass.database.element.database.DatabaseKDB
-import com.kunzisoft.keepass.database.element.database.DatabaseKDBX
-import com.kunzisoft.keepass.database.search.SearchHelper
-import com.kunzisoft.keepass.settings.PreferencesUtil
-import com.kunzisoft.keepass.view.strikeOut
-
-class SearchEntryCursorAdapter(private val context: Context,
-                               private val database: Database)
-    : androidx.cursoradapter.widget.CursorAdapter(context, null, FLAG_REGISTER_CONTENT_OBSERVER) {
-
-    private val cursorInflater: LayoutInflater? = context.getSystemService(
-            Context.LAYOUT_INFLATER_SERVICE) as LayoutInflater?
-    private var mDisplayUsername: Boolean = false
-    private var mOmitBackup: Boolean = true
-    private val iconColor: Int
-
-    init {
-        // Get the icon color
-        val taTextColor = context.theme.obtainStyledAttributes(intArrayOf(R.attr.textColorInverse))
-        this.iconColor = taTextColor.getColor(0, Color.WHITE)
-        taTextColor.recycle()
-
-        reInit(context)
-    }
-
-    fun reInit(context: Context) {
-        this.mDisplayUsername = PreferencesUtil.showUsernamesListEntries(context)
-        this.mOmitBackup = PreferencesUtil.omitBackup(context)
-    }
-
-    override fun newView(context: Context, cursor: Cursor, parent: ViewGroup): View {
-
-        val view = cursorInflater!!.inflate(R.layout.item_search_entry, parent, false)
-        val viewHolder = ViewHolder()
-        viewHolder.imageViewIcon = view.findViewById(R.id.entry_icon)
-        viewHolder.textViewTitle = view.findViewById(R.id.entry_text)
-        viewHolder.textViewSubTitle = view.findViewById(R.id.entry_subtext)
-        view.tag = viewHolder
-
-        return view
-    }
-
-    override fun bindView(view: View, context: Context, cursor: Cursor) {
-        getEntryFrom(cursor)?.let { currentEntry ->
-            val viewHolder = view.tag as ViewHolder
-
-            // Assign image
-            viewHolder.imageViewIcon?.let { iconView ->
-                database.iconDrawableFactory.assignDatabaseIcon(iconView, currentEntry.icon, iconColor)
-            }
-
-            // Assign title
-            viewHolder.textViewTitle?.apply {
-                text = currentEntry.getVisualTitle()
-                strikeOut(currentEntry.isCurrentlyExpires)
-            }
-
-            // Assign subtitle
-            viewHolder.textViewSubTitle?.apply {
-                val entryUsername = currentEntry.username
-                text = if (mDisplayUsername && entryUsername.isNotEmpty()) {
-                    String.format("(%s)", entryUsername)
-                } else {
-                    ""
-                }
-                visibility = if (text.isEmpty()) View.GONE else View.VISIBLE
-                strikeOut(currentEntry.isCurrentlyExpires)
-            }
-        }
-    }
-
-    private fun getEntryFrom(cursor: Cursor): Entry? {
-        return database.createEntry()?.apply {
-            entryKDB?.let { entryKDB ->
-                (cursor as EntryCursorKDB).populateEntry(entryKDB,
-                        { standardIconId ->
-                            database.getStandardIcon(standardIconId)
-                        },
-                        { customIconId ->
-                            database.getCustomIcon(customIconId)
-                        }
-                )
-            }
-            entryKDBX?.let { entryKDBX ->
-                (cursor as EntryCursorKDBX).populateEntry(entryKDBX,
-                        { standardIconId ->
-                            database.getStandardIcon(standardIconId)
-                        },
-                        { customIconId ->
-                            database.getCustomIcon(customIconId)
-                        }
-                )
-            }
-        }
-    }
-
-    override fun runQueryOnBackgroundThread(constraint: CharSequence): Cursor? {
-        return searchEntries(context, constraint.toString())
-    }
-
-    private fun searchEntries(context: Context, query: String): Cursor? {
-        var cursorKDB: EntryCursorKDB? = null
-        var cursorKDBX: EntryCursorKDBX? = null
-
-        if (database.type == DatabaseKDB.TYPE)
-            cursorKDB = EntryCursorKDB()
-        if (database.type == DatabaseKDBX.TYPE)
-            cursorKDBX = EntryCursorKDBX()
-
-        val searchGroup = database.createVirtualGroupFromSearch(query,
-                mOmitBackup,
-                SearchHelper.MAX_SEARCH_ENTRY)
-        if (searchGroup != null) {
-            // Search in hide entries but not meta-stream
-            for (entry in searchGroup.getFilteredChildEntries(Group.ChildFilter.getDefaults(context))) {
-                database.startManageEntry(entry)
-                entry.entryKDB?.let {
-                    cursorKDB?.addEntry(it)
-                }
-                entry.entryKDBX?.let {
-                    cursorKDBX?.addEntry(it)
-                }
-                database.stopManageEntry(entry)
-            }
-        }
-
-        return cursorKDB ?: cursorKDBX
-    }
-
-    fun getEntryFromPosition(position: Int): Entry? {
-        var pwEntry: Entry? = null
-
-        val cursor = this.cursor
-        if (cursor.moveToFirst() && cursor.move(position)) {
-            pwEntry = getEntryFrom(cursor)
-        }
-        return pwEntry
-    }
-
-    private class ViewHolder {
-        var imageViewIcon: ImageView? = null
-        var textViewTitle: TextView? = null
-        var textViewSubTitle: TextView? = null
-    }
-}

app/src/main/java/com/kunzisoft/keepass/adapters/TagsAdapter.kt

@@ -0,0 +1,73 @@
+/*
+ * Copyright 2021 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePassDX.
+ *
+ *  KeePassDX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePassDX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+package com.kunzisoft.keepass.adapters
+
+import android.content.Context
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.TextView
+import androidx.recyclerview.widget.RecyclerView
+import com.kunzisoft.keepass.R
+import com.kunzisoft.keepass.database.element.Tags
+
+class TagsAdapter(context: Context) : RecyclerView.Adapter<TagsAdapter.TagViewHolder>() {
+
+    private val inflater: LayoutInflater = LayoutInflater.from(context)
+    private var mTags: Tags = Tags()
+    var onItemClickListener: OnItemClickListener? = null
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): TagViewHolder {
+        val view = inflater.inflate(R.layout.item_tag, parent, false)
+        return TagViewHolder(view)
+    }
+
+    override fun onBindViewHolder(holder: TagViewHolder, position: Int) {
+        val field = mTags.get(position)
+        holder.name.text = field
+        holder.bind(field, onItemClickListener)
+    }
+
+    override fun getItemCount(): Int {
+        return mTags.size()
+    }
+
+    fun setTags(tags: Tags) {
+        mTags.setTags(tags)
+        notifyDataSetChanged()
+    }
+
+    fun clear() {
+        mTags.clear()
+    }
+
+    interface OnItemClickListener {
+        fun onItemClick(item: String)
+    }
+
+    inner class TagViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
+
+        var name: TextView = itemView.findViewById(R.id.tag_name)
+
+        fun bind(item: String, listener: OnItemClickListener?) {
+            itemView.setOnClickListener { listener?.onItemClick(item) }
+        }
+    }
+}

app/src/main/java/com/kunzisoft/keepass/adapters/TagsProposalAdapter.kt

@@ -0,0 +1,19 @@
+package com.kunzisoft.keepass.adapters
+
+import android.content.Context
+import com.kunzisoft.keepass.database.element.Tags
+import com.tokenautocomplete.FilteredArrayAdapter
+
+class TagsProposalAdapter(context: Context, proposal: Tags?)
+    : FilteredArrayAdapter<String>(
+    context,
+    android.R.layout.simple_list_item_1,
+    (proposal ?: Tags()).toList()
+) {
+
+    override fun keepObject(obj: String, mask: String?): Boolean {
+        if (mask == null)
+            return false
+        return obj.contains(mask, true)
+    }
+}

app/src/main/java/com/kunzisoft/keepass/adapters/TemplatesSelectorAdapter.kt

@@ -9,23 +9,23 @@ import android.widget.BaseAdapter
 import android.widget.ImageView
 import android.widget.TextView
 import com.kunzisoft.keepass.R
-import com.kunzisoft.keepass.database.element.Database
 import com.kunzisoft.keepass.database.element.template.Template
 import com.kunzisoft.keepass.database.element.template.TemplateField
 import com.kunzisoft.keepass.icons.IconDrawableFactory
 
 
-class TemplatesSelectorAdapter(private val context: Context,
+class TemplatesSelectorAdapter(
+    context: Context,
     private var templates: List<Template>): BaseAdapter() {
 
     var iconDrawableFactory: IconDrawableFactory? = null
     private val inflater: LayoutInflater = LayoutInflater.from(context)
-    private var mIconColor = Color.BLACK
+    private var mTextColor = Color.BLACK
 
     init {
-        val taIconColor = context.theme.obtainStyledAttributes(intArrayOf(android.R.attr.textColor))
-        mIconColor = taIconColor.getColor(0, Color.BLACK)
-        taIconColor.recycle()
+        val taTextColor = context.theme.obtainStyledAttributes(intArrayOf(android.R.attr.textColor))
+        mTextColor = taTextColor.getColor(0, Color.BLACK)
+        taTextColor.recycle()
     }
 
     override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
@@ -36,6 +36,7 @@ class TemplatesSelectorAdapter(private val context: Context,
         if (templateView == null) {
             holder = TemplateSelectorViewHolder()
             templateView = inflater.inflate(R.layout.item_template, parent, false)
+            holder.background = templateView?.findViewById(R.id.template_background)
             holder.icon = templateView?.findViewById(R.id.template_image)
             holder.name = templateView?.findViewById(R.id.template_name)
             templateView?.tag = holder
@@ -43,10 +44,15 @@ class TemplatesSelectorAdapter(private val context: Context,
             holder = templateView.tag as TemplateSelectorViewHolder
         }
 
+        holder.background?.setBackgroundColor(template.backgroundColor ?: Color.TRANSPARENT)
+        val textColor = template.foregroundColor ?: mTextColor
         holder.icon?.let { icon ->
-            iconDrawableFactory?.assignDatabaseIcon(icon, template.icon, mIconColor)
+            iconDrawableFactory?.assignDatabaseIcon(icon, template.icon, textColor)
+        }
+        holder.name?.apply {
+            setTextColor(textColor)
+            text = TemplateField.getLocalizedName(context, template.title)
         }
-        holder.name?.text = TemplateField.getLocalizedName(context, template.title)
 
         return templateView!!
     }
@@ -64,6 +70,7 @@ class TemplatesSelectorAdapter(private val context: Context,
     }
 
     inner class TemplateSelectorViewHolder {
+        var background: View? = null
         var icon: ImageView? = null
         var name: TextView? = null
     }

app/src/main/java/com/kunzisoft/keepass/app/database/CipherDatabaseAction.kt

@@ -22,7 +22,9 @@ package com.kunzisoft.keepass.app.database
 import android.content.*
 import android.net.Uri
 import android.os.IBinder
+import android.util.Base64
 import android.util.Log
+import com.kunzisoft.keepass.model.CipherEncryptDatabase
 import com.kunzisoft.keepass.services.AdvancedUnlockNotificationService
 import com.kunzisoft.keepass.settings.PreferencesUtil
 import com.kunzisoft.keepass.utils.SingletonHolderParameter
@@ -125,15 +127,40 @@ class CipherDatabaseAction(context: Context) {
     }
 
     fun getCipherDatabase(databaseUri: Uri,
-                          cipherDatabaseResultListener: (CipherDatabaseEntity?) -> Unit) {
+                          cipherDatabaseResultListener: (CipherEncryptDatabase?) -> Unit) {
         if (useTempDao) {
             serviceActionTask {
-                cipherDatabaseResultListener.invoke(mBinder?.getCipherDatabase(databaseUri))
+                mBinder?.getCipherDatabase(databaseUri)?.let { cipherDatabaseEntity ->
+                    val cipherDatabase = CipherEncryptDatabase().apply {
+                        this.databaseUri = Uri.parse(cipherDatabaseEntity.databaseUri)
+                        this.encryptedValue = Base64.decode(
+                            cipherDatabaseEntity.encryptedValue,
+                            Base64.NO_WRAP
+                        )
+                        this.specParameters = Base64.decode(
+                            cipherDatabaseEntity.specParameters,
+                            Base64.NO_WRAP
+                        )
+                    }
+                    cipherDatabaseResultListener.invoke(cipherDatabase)
+                }
             }
         } else {
             IOActionTask(
                     {
-                        cipherDatabaseDao.getByDatabaseUri(databaseUri.toString())
+                        cipherDatabaseDao.getByDatabaseUri(databaseUri.toString())?.let { cipherDatabaseEntity ->
+                            CipherEncryptDatabase().apply {
+                                this.databaseUri = Uri.parse(cipherDatabaseEntity.databaseUri)
+                                this.encryptedValue = Base64.decode(
+                                    cipherDatabaseEntity.encryptedValue,
+                                    Base64.NO_WRAP
+                                )
+                                this.specParameters = Base64.decode(
+                                    cipherDatabaseEntity.specParameters,
+                                    Base64.NO_WRAP
+                                )
+                            }
+                        }
                     },
                     {
                         cipherDatabaseResultListener.invoke(it)
@@ -149,8 +176,16 @@ class CipherDatabaseAction(context: Context) {
         }
     }
 
-    fun addOrUpdateCipherDatabase(cipherDatabaseEntity: CipherDatabaseEntity,
+    fun addOrUpdateCipherDatabase(cipherEncryptDatabase: CipherEncryptDatabase,
                                   cipherDatabaseResultListener: (() -> Unit)? = null) {
+        cipherEncryptDatabase.databaseUri?.let { databaseUri ->
+
+            val cipherDatabaseEntity = CipherDatabaseEntity(
+                databaseUri.toString(),
+                Base64.encodeToString(cipherEncryptDatabase.encryptedValue, Base64.NO_WRAP),
+                Base64.encodeToString(cipherEncryptDatabase.specParameters, Base64.NO_WRAP),
+            )
+
             if (useTempDao) {
                 // The only case to create service (not needed to get an info)
                 serviceActionTask(true) {
@@ -160,7 +195,8 @@ class CipherDatabaseAction(context: Context) {
             } else {
                 IOActionTask(
                     {
-                        val cipherDatabaseRetrieve = cipherDatabaseDao.getByDatabaseUri(cipherDatabaseEntity.databaseUri)
+                        val cipherDatabaseRetrieve =
+                            cipherDatabaseDao.getByDatabaseUri(cipherDatabaseEntity.databaseUri)
                         // Update values if element not yet in the database
                         if (cipherDatabaseRetrieve == null) {
                             cipherDatabaseDao.add(cipherDatabaseEntity)
@@ -174,6 +210,7 @@ class CipherDatabaseAction(context: Context) {
                 ).execute()
             }
         }
+    }
 
     fun deleteByDatabaseUri(databaseUri: Uri,
                             cipherDatabaseResultListener: (() -> Unit)? = null) {

app/src/main/java/com/kunzisoft/keepass/autofill/AutofillComponent.kt

@@ -4,4 +4,4 @@ import android.app.assist.AssistStructure
 import android.view.inputmethod.InlineSuggestionsRequest
 
 data class AutofillComponent(val assistStructure: AssistStructure,
-                             val inlineSuggestionsRequest: InlineSuggestionsRequest?)
+                             val compatInlineSuggestionsRequest: CompatInlineSuggestionsRequest?)

app/src/main/java/com/kunzisoft/keepass/autofill/AutofillHelper.kt

@@ -34,7 +34,6 @@ import android.service.autofill.InlinePresentation
 import android.util.Log
 import android.view.autofill.AutofillManager
 import android.view.autofill.AutofillValue
-import android.view.inputmethod.InlineSuggestionsRequest
 import android.widget.RemoteViews
 import android.widget.Toast
 import android.widget.inline.InlinePresentationSpec
@@ -63,7 +62,7 @@ import com.kunzisoft.keepass.utils.LOCK_ACTION
 object AutofillHelper {
 
     private const val EXTRA_ASSIST_STRUCTURE = AutofillManager.EXTRA_ASSIST_STRUCTURE
-    const val EXTRA_INLINE_SUGGESTIONS_REQUEST = "com.kunzisoft.keepass.autofill.INLINE_SUGGESTIONS_REQUEST"
+    private const val EXTRA_INLINE_SUGGESTIONS_REQUEST = "com.kunzisoft.keepass.autofill.INLINE_SUGGESTIONS_REQUEST"
 
     fun retrieveAutofillComponent(intent: Intent?): AutofillComponent? {
         intent?.getParcelableExtra<AssistStructure?>(EXTRA_ASSIST_STRUCTURE)?.let { assistStructure ->
@@ -112,7 +111,7 @@ object AutofillHelper {
                              database: Database,
                              entryInfo: EntryInfo,
                              struct: StructureParser.Result,
-                             inlinePresentation: InlinePresentation?): Dataset? {
+                             additionalBuild: ((build: Dataset.Builder) -> Unit)? = null): Dataset? {
         val title = makeEntryTitle(entryInfo)
         val views = newRemoteViews(context, database, title, entryInfo.icon)
         val builder = Dataset.Builder(views)
@@ -201,11 +200,7 @@ object AutofillHelper {
             }
         }
 
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
-            inlinePresentation?.let {
-                builder.setInlinePresentation(it)
-            }
-        }
+        additionalBuild?.invoke(builder)
 
         return try {
             builder.build()
@@ -236,14 +231,16 @@ object AutofillHelper {
     @SuppressLint("RestrictedApi")
     private fun buildInlinePresentationForEntry(context: Context,
                                                 database: Database,
-                                                inlineSuggestionsRequest: InlineSuggestionsRequest,
+                                                compatInlineSuggestionsRequest: CompatInlineSuggestionsRequest,
                                                 positionItem: Int,
                                                 entryInfo: EntryInfo): InlinePresentation? {
+        compatInlineSuggestionsRequest.inlineSuggestionsRequest?.let { inlineSuggestionsRequest ->
             val inlinePresentationSpecs = inlineSuggestionsRequest.inlinePresentationSpecs
             val maxSuggestion = inlineSuggestionsRequest.maxSuggestionCount
 
             if (positionItem <= maxSuggestion - 1
-                && inlinePresentationSpecs.size > positionItem) {
+                && inlinePresentationSpecs.size > positionItem
+            ) {
                 val inlinePresentationSpec = inlinePresentationSpecs[positionItem]
 
                 // Make sure that the IME spec claims support for v1 UI template.
@@ -252,20 +249,23 @@ object AutofillHelper {
                     return null
 
                 // Build the content for IME UI
-            val pendingIntent = PendingIntent.getActivity(context,
+                val pendingIntent = PendingIntent.getActivity(
+                    context,
                     0,
                     Intent(context, AutofillSettingsActivity::class.java),
                     if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                         PendingIntent.FLAG_IMMUTABLE
                     } else {
                         0
-                })
+                    }
+                )
                 return InlinePresentation(
                     InlineSuggestionUi.newContentBuilder(pendingIntent).apply {
                         setContentDescription(context.getString(R.string.autofill_sign_in_prompt))
                         setTitle(entryInfo.title)
                         setSubtitle(entryInfo.username)
-                        setStartIcon(Icon.createWithResource(context, R.mipmap.ic_launcher_round).apply {
+                        setStartIcon(
+                            Icon.createWithResource(context, R.mipmap.ic_launcher_round).apply {
                                 setTintBlendMode(BlendMode.DST)
                             })
                         buildIconFromEntry(context, database, entryInfo)?.let { icon ->
@@ -273,7 +273,9 @@ object AutofillHelper {
                                 setTintBlendMode(BlendMode.DST)
                             })
                         }
-                    }.build().slice, inlinePresentationSpec, false)
+                    }.build().slice, inlinePresentationSpec, false
+                )
+            }
         }
         return null
     }
@@ -303,7 +305,7 @@ object AutofillHelper {
                       database: Database,
                       entriesInfo: List<EntryInfo>,
                       parseResult: StructureParser.Result,
-                      inlineSuggestionsRequest: InlineSuggestionsRequest?): FillResponse? {
+                      compatInlineSuggestionsRequest: CompatInlineSuggestionsRequest?): FillResponse? {
         val responseBuilder = FillResponse.Builder()
         // Add Header
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
@@ -324,7 +326,7 @@ object AutofillHelper {
         // Add inline suggestion for new IME and dataset
         var numberInlineSuggestions = 0
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
-            inlineSuggestionsRequest?.let {
+            compatInlineSuggestionsRequest?.inlineSuggestionsRequest?.let { inlineSuggestionsRequest ->
                 numberInlineSuggestions = minOf(inlineSuggestionsRequest.maxSuggestionCount, entriesInfo.size)
                 if (PreferencesUtil.isAutofillManualSelectionEnable(context)) {
                     if (entriesInfo.size >= inlineSuggestionsRequest.maxSuggestionCount) {
@@ -336,14 +338,19 @@ object AutofillHelper {
         }
 
         entriesInfo.forEachIndexed { _, entry ->
-            val inlinePresentation = if (numberInlineSuggestions > 0 && Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
-                inlineSuggestionsRequest?.let {
-                    buildInlinePresentationForEntry(context, database, inlineSuggestionsRequest, numberInlineSuggestions--, entry)
+            if (numberInlineSuggestions > 0
+                && Build.VERSION.SDK_INT >= Build.VERSION_CODES.R
+                && compatInlineSuggestionsRequest != null) {
+                responseBuilder.addDataset(buildDataset(context, database, entry, parseResult) { builder ->
+                    buildInlinePresentationForEntry(context, database,
+                        compatInlineSuggestionsRequest, numberInlineSuggestions--, entry
+                    )?.let { inlinePresentation ->
+                        builder.setInlinePresentation(inlinePresentation)
                     }
+                })
             } else {
-                null
+                responseBuilder.addDataset(buildDataset(context, database, entry, parseResult))
             }
-            responseBuilder.addDataset(buildDataset(context, database, entry, parseResult, inlinePresentation))
         }
 
         if (PreferencesUtil.isAutofillManualSelectionEnable(context)) {
@@ -355,14 +362,14 @@ object AutofillHelper {
             }
             val manualSelectionView = RemoteViews(context.packageName, R.layout.item_autofill_select_entry)
             val pendingIntent = AutofillLauncherActivity.getPendingIntentForSelection(context,
-                    searchInfo, inlineSuggestionsRequest)
+                    searchInfo, compatInlineSuggestionsRequest)
 
             parseResult.allAutofillIds().let { autofillIds ->
                 autofillIds.forEach { id ->
                     val builder = Dataset.Builder(manualSelectionView)
 
                     if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
-                        inlineSuggestionsRequest?.let {
+                        compatInlineSuggestionsRequest?.inlineSuggestionsRequest?.let { inlineSuggestionsRequest ->
                             val inlinePresentationSpec = inlineSuggestionsRequest.inlinePresentationSpecs[0]
                             val inlinePresentation = buildInlinePresentationForManualSelection(context, inlinePresentationSpec, pendingIntent)
                             inlinePresentation?.let {
@@ -407,11 +414,11 @@ object AutofillHelper {
                 StructureParser(structure).parse()?.let { result ->
                     // New Response
                     val response = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
-                        val inlineSuggestionsRequest = activity.intent?.getParcelableExtra<InlineSuggestionsRequest?>(EXTRA_INLINE_SUGGESTIONS_REQUEST)
-                        if (inlineSuggestionsRequest != null) {
+                        val compatInlineSuggestionsRequest = activity.intent?.getParcelableExtra<CompatInlineSuggestionsRequest?>(EXTRA_INLINE_SUGGESTIONS_REQUEST)
+                        if (compatInlineSuggestionsRequest != null) {
                             Toast.makeText(activity.applicationContext, R.string.autofill_inline_suggestions_keyboard, Toast.LENGTH_SHORT).show()
                         }
-                        buildResponse(activity, database, entriesInfo, result, inlineSuggestionsRequest)
+                        buildResponse(activity, database, entriesInfo, result, compatInlineSuggestionsRequest)
                     } else {
                         buildResponse(activity, database, entriesInfo, result, null)
                     }
@@ -464,7 +471,7 @@ object AutofillHelper {
         intent.putExtra(EXTRA_ASSIST_STRUCTURE, autofillComponent.assistStructure)
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R
                 && PreferencesUtil.isAutofillInlineSuggestionsEnable(activity)) {
-            autofillComponent.inlineSuggestionsRequest?.let {
+            autofillComponent.compatInlineSuggestionsRequest?.let {
                 intent.putExtra(EXTRA_INLINE_SUGGESTIONS_REQUEST, it)
             }
         }

app/src/main/java/com/kunzisoft/keepass/autofill/CompatInlineSuggestionsRequest.kt

@@ -0,0 +1,83 @@
+/*
+ * Copyright 2021 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePassDX.
+ *
+ *  KeePassDX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePassDX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+package com.kunzisoft.keepass.autofill
+
+import android.annotation.TargetApi
+import android.os.Build
+import android.os.Parcel
+import android.os.Parcelable
+import android.service.autofill.FillRequest
+import android.view.inputmethod.InlineSuggestionsRequest
+import androidx.annotation.RequiresApi
+
+/**
+ * Utility class only to prevent java.lang.NoClassDefFoundError for old Android version and new lib compilation
+ */
+@RequiresApi(Build.VERSION_CODES.O)
+class CompatInlineSuggestionsRequest : Parcelable {
+
+    @TargetApi(Build.VERSION_CODES.R)
+    var inlineSuggestionsRequest: InlineSuggestionsRequest? = null
+        private set
+
+    constructor(fillRequest: FillRequest) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+            this.inlineSuggestionsRequest = fillRequest.inlineSuggestionsRequest
+        } else {
+            this.inlineSuggestionsRequest = null
+        }
+    }
+
+    @RequiresApi(Build.VERSION_CODES.R)
+    constructor(inlineSuggestionsRequest: InlineSuggestionsRequest?) {
+        this.inlineSuggestionsRequest = inlineSuggestionsRequest
+    }
+
+    constructor(parcel: Parcel) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+            this.inlineSuggestionsRequest =
+                parcel.readParcelable(FillRequest::class.java.classLoader)
+        }
+        else {
+            this.inlineSuggestionsRequest = null
+        }
+    }
+
+    override fun writeToParcel(parcel: Parcel, flags: Int) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+            parcel.writeParcelable(inlineSuggestionsRequest, flags)
+        }
+    }
+
+    override fun describeContents(): Int {
+        return 0
+    }
+
+    companion object CREATOR : Parcelable.Creator<CompatInlineSuggestionsRequest> {
+        override fun createFromParcel(parcel: Parcel): CompatInlineSuggestionsRequest {
+            return CompatInlineSuggestionsRequest(parcel)
+        }
+
+        override fun newArray(size: Int): Array<CompatInlineSuggestionsRequest?> {
+            return arrayOfNulls(size)
+        }
+    }
+
+}

app/src/main/java/com/kunzisoft/keepass/autofill/KeeAutofillService.kt

@@ -109,7 +109,7 @@ class KeeAutofillService : AutofillService() {
                         searchInfo.webDomain = webDomainWithoutSubDomain
                         val inlineSuggestionsRequest = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R
                                 && autofillInlineSuggestionsEnabled) {
-                            request.inlineSuggestionsRequest
+                            CompatInlineSuggestionsRequest(request)
                         } else {
                             null
                         }
@@ -127,7 +127,7 @@ class KeeAutofillService : AutofillService() {
     private fun launchSelection(database: Database?,
                                 searchInfo: SearchInfo,
                                 parseResult: StructureParser.Result,
-                                inlineSuggestionsRequest: InlineSuggestionsRequest?,
+                                inlineSuggestionsRequest: CompatInlineSuggestionsRequest?,
                                 callback: FillCallback) {
         SearchHelper.checkAutoSearchInfo(this,
                 database,
@@ -155,7 +155,7 @@ class KeeAutofillService : AutofillService() {
     private fun showUIForEntrySelection(parseResult: StructureParser.Result,
                                         database: Database?,
                                         searchInfo: SearchInfo,
-                                        inlineSuggestionsRequest: InlineSuggestionsRequest?,
+                                        inlineSuggestionsRequest: CompatInlineSuggestionsRequest?,
                                         callback: FillCallback) {
         parseResult.allAutofillIds().let { autofillIds ->
             if (autofillIds.isNotEmpty()) {
@@ -249,7 +249,7 @@ class KeeAutofillService : AutofillService() {
                 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R
                         && autofillInlineSuggestionsEnabled) {
                     var inlinePresentation: InlinePresentation? = null
-                    inlineSuggestionsRequest?.let {
+                    inlineSuggestionsRequest?.inlineSuggestionsRequest?.let { inlineSuggestionsRequest ->
                         val inlinePresentationSpecs = inlineSuggestionsRequest.inlinePresentationSpecs
                         if (inlineSuggestionsRequest.maxSuggestionCount > 0
                                 && inlinePresentationSpecs.size > 0) {
@@ -281,8 +281,9 @@ class KeeAutofillService : AutofillService() {
                     }
                     // Build response
                     responseBuilder.setAuthentication(autofillIds, intentSender, remoteViewsUnlock, inlinePresentation)
-                }
+                } else {
                     responseBuilder.setAuthentication(autofillIds, intentSender, remoteViewsUnlock)
+                }
                 callback.onSuccess(responseBuilder.build())
             }
         }

app/src/main/java/com/kunzisoft/keepass/biometric/AdvancedUnlockFragment.kt

@@ -40,6 +40,9 @@ import com.kunzisoft.keepass.activities.stylish.StylishFragment
 import com.kunzisoft.keepass.app.database.CipherDatabaseAction
 import com.kunzisoft.keepass.database.exception.IODatabaseException
 import com.kunzisoft.keepass.education.PasswordActivityEducation
+import com.kunzisoft.keepass.model.CipherDecryptDatabase
+import com.kunzisoft.keepass.model.CipherEncryptDatabase
+import com.kunzisoft.keepass.model.CredentialStorage
 import com.kunzisoft.keepass.settings.PreferencesUtil
 import com.kunzisoft.keepass.view.AdvancedUnlockInfoView
 import com.kunzisoft.keepass.viewmodels.AdvancedUnlockViewModel
@@ -60,6 +63,9 @@ class AdvancedUnlockFragment: StylishFragment(), AdvancedUnlockManager.AdvancedU
     var databaseFileUri: Uri? = null
         private set
 
+    // TODO Retrieve credential storage from app database
+    var credentialDatabaseStorage: CredentialStorage = CredentialStorage.DEFAULT
+
     /**
      * Manage setting to auto open biometric prompt
      */
@@ -477,6 +483,7 @@ class AdvancedUnlockFragment: StylishFragment(), AdvancedUnlockManager.AdvancedU
         } ?: checkUnlockAvailability()
     }
 
+    @RequiresApi(Build.VERSION_CODES.M)
     override fun onAuthenticationError(errorCode: Int, errString: CharSequence) {
         lifecycleScope.launch(Dispatchers.Main) {
             Log.e(TAG, "Biometric authentication error. Code : $errorCode Error : $errString")
@@ -528,16 +535,29 @@ class AdvancedUnlockFragment: StylishFragment(), AdvancedUnlockManager.AdvancedU
         }
     }
 
-    override fun handleEncryptedResult(encryptedValue: String, ivSpec: String) {
+    override fun handleEncryptedResult(encryptedValue: ByteArray, ivSpec: ByteArray) {
         databaseFileUri?.let { databaseUri ->
-            mBuilderListener?.onCredentialEncrypted(databaseUri, encryptedValue, ivSpec)
+            mBuilderListener?.onCredentialEncrypted(
+                CipherEncryptDatabase().apply {
+                    this.databaseUri = databaseUri
+                    this.credentialStorage = credentialDatabaseStorage
+                    this.encryptedValue = encryptedValue
+                    this.specParameters = ivSpec
+                }
+            )
         }
     }
 
-    override fun handleDecryptedResult(decryptedValue: String) {
+    override fun handleDecryptedResult(decryptedValue: ByteArray) {
         // Load database directly with password retrieve
-        databaseFileUri?.let {
-            mBuilderListener?.onCredentialDecrypted(it, decryptedValue)
+        databaseFileUri?.let { databaseUri ->
+            mBuilderListener?.onCredentialDecrypted(
+                CipherDecryptDatabase().apply {
+                    this.databaseUri = databaseUri
+                    this.credentialStorage = credentialDatabaseStorage
+                    this.decryptedValue = decryptedValue
+                }
+            )
         }
     }
 
@@ -551,6 +571,7 @@ class AdvancedUnlockFragment: StylishFragment(), AdvancedUnlockManager.AdvancedU
         setAdvancedUnlockedMessageView(R.string.advanced_unlock_invalid_key)
     }
 
+    @RequiresApi(Build.VERSION_CODES.M)
     override fun onGenericException(e: Exception) {
         val errorMessage = e.cause?.localizedMessage ?: e.localizedMessage ?: ""
         setAdvancedUnlockedMessageView(errorMessage)
@@ -580,6 +601,7 @@ class AdvancedUnlockFragment: StylishFragment(), AdvancedUnlockManager.AdvancedU
         }
     }
 
+    @RequiresApi(Build.VERSION_CODES.M)
     private fun setAdvancedUnlockedMessageView(text: CharSequence) {
         lifecycleScope.launch(Dispatchers.Main) {
             mAdvancedUnlockInfoView?.message = text
@@ -617,10 +639,10 @@ class AdvancedUnlockFragment: StylishFragment(), AdvancedUnlockManager.AdvancedU
     }
 
     interface BuilderListener {
-        fun retrieveCredentialForEncryption(): String
+        fun retrieveCredentialForEncryption(): ByteArray
         fun conditionToStoreCredential(): Boolean
-        fun onCredentialEncrypted(databaseUri: Uri, encryptedCredential: String, ivSpec: String)
-        fun onCredentialDecrypted(databaseUri: Uri, decryptedCredential: String)
+        fun onCredentialEncrypted(cipherEncryptDatabase: CipherEncryptDatabase)
+        fun onCredentialDecrypted(cipherDecryptDatabase: CipherDecryptDatabase)
     }
 
     override fun onPause() {

app/src/main/java/com/kunzisoft/keepass/biometric/AdvancedUnlockManager.kt

@@ -27,7 +27,6 @@ import android.os.Build
 import android.security.keystore.KeyGenParameterSpec
 import android.security.keystore.KeyPermanentlyInvalidatedException
 import android.security.keystore.KeyProperties
-import android.util.Base64
 import android.util.Log
 import android.widget.Toast
 import androidx.activity.result.ActivityResultLauncher
@@ -214,18 +213,15 @@ class AdvancedUnlockManager(private var retrieveContext: () -> FragmentActivity)
         }
     }
 
-    fun encryptData(value: String) {
+    fun encryptData(value: ByteArray) {
         if (!isKeyManagerInitialized) {
             return
         }
         try {
-            val encrypted = cipher?.doFinal(value.toByteArray())
-            val encryptedBase64 = Base64.encodeToString(encrypted, Base64.NO_WRAP)
-
+            val encrypted = cipher?.doFinal(value) ?: byteArrayOf()
             // passes updated iv spec on to callback so this can be stored for decryption
             cipher?.parameters?.getParameterSpec(IvParameterSpec::class.java)?.let{ spec ->
-                val ivSpecValue = Base64.encodeToString(spec.iv, Base64.NO_WRAP)
-                advancedUnlockCallback?.handleEncryptedResult(encryptedBase64, ivSpecValue)
+                advancedUnlockCallback?.handleEncryptedResult(encrypted, spec.iv)
             }
         } catch (e: Exception) {
             Log.e(TAG, "Unable to encrypt data", e)
@@ -233,12 +229,12 @@ class AdvancedUnlockManager(private var retrieveContext: () -> FragmentActivity)
         }
     }
 
-    fun initDecryptData(ivSpecValue: String,
+    fun initDecryptData(ivSpecValue: ByteArray,
                         actionIfCypherInit: (cryptoPrompt: AdvancedUnlockCryptoPrompt) -> Unit) {
         initDecryptData(ivSpecValue, actionIfCypherInit, true)
     }
 
-    private fun initDecryptData(ivSpecValue: String,
+    private fun initDecryptData(ivSpecValue: ByteArray,
                         actionIfCypherInit: (cryptoPrompt: AdvancedUnlockCryptoPrompt) -> Unit,
                         firstLaunch: Boolean = true) {
         if (!isKeyManagerInitialized) {
@@ -246,9 +242,7 @@ class AdvancedUnlockManager(private var retrieveContext: () -> FragmentActivity)
         }
         try {
             // important to restore spec here that was used for decryption
-            val iv = Base64.decode(ivSpecValue, Base64.NO_WRAP)
-            val spec = IvParameterSpec(iv)
-
+            val spec = IvParameterSpec(ivSpecValue)
             getSecretKey()?.let { secretKey ->
                 cipher?.let { cipher ->
                     cipher.init(Cipher.DECRYPT_MODE, secretKey, spec)
@@ -284,15 +278,14 @@ class AdvancedUnlockManager(private var retrieveContext: () -> FragmentActivity)
         }
     }
 
-    fun decryptData(encryptedValue: String) {
+    fun decryptData(encryptedValue: ByteArray) {
         if (!isKeyManagerInitialized) {
             return
         }
         try {
             // actual decryption here
-            val encrypted = Base64.decode(encryptedValue, Base64.NO_WRAP)
-            cipher?.doFinal(encrypted)?.let { decrypted ->
-                advancedUnlockCallback?.handleDecryptedResult(String(decrypted))
+            cipher?.doFinal(encryptedValue)?.let { decrypted ->
+                advancedUnlockCallback?.handleDecryptedResult(decrypted)
             }
         } catch (badPaddingException: BadPaddingException) {
             Log.e(TAG, "Unable to decrypt data", badPaddingException)
@@ -367,8 +360,8 @@ class AdvancedUnlockManager(private var retrieveContext: () -> FragmentActivity)
         fun onAuthenticationSucceeded()
         fun onAuthenticationFailed()
         fun onAuthenticationError(errorCode: Int, errString: CharSequence)
-        fun handleEncryptedResult(encryptedValue: String, ivSpec: String)
-        fun handleDecryptedResult(decryptedValue: String)
+        fun handleEncryptedResult(encryptedValue: ByteArray, ivSpec: ByteArray)
+        fun handleDecryptedResult(decryptedValue: ByteArray)
     }
 
     companion object {
@@ -469,9 +462,9 @@ class AdvancedUnlockManager(private var retrieveContext: () -> FragmentActivity)
 
                     override fun onAuthenticationError(errorCode: Int, errString: CharSequence) {}
 
-                    override fun handleEncryptedResult(encryptedValue: String, ivSpec: String) {}
+                    override fun handleEncryptedResult(encryptedValue: ByteArray, ivSpec: ByteArray) {}
 
-                    override fun handleDecryptedResult(decryptedValue: String) {}
+                    override fun handleDecryptedResult(decryptedValue: ByteArray) {}
 
                     override fun onUnrecoverableKeyException(e: Exception) {
                         advancedCallback.onUnrecoverableKeyException(e)

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

@@ -27,7 +27,7 @@ import com.kunzisoft.keepass.database.element.Database
 import com.kunzisoft.keepass.model.MainCredential
 import com.kunzisoft.keepass.utils.UriUtil
 
-open class AssignPasswordInDatabaseRunnable (
+open class AssignMainCredentialInDatabaseRunnable (
         context: Context,
         database: Database,
         protected val mDatabaseUri: Uri,
@@ -43,7 +43,7 @@ open class AssignPasswordInDatabaseRunnable (
             System.arraycopy(database.masterKey, 0, mBackupKey!!, 0, mBackupKey!!.size)
 
             val uriInputStream = UriUtil.getUriInputStream(context.contentResolver, mMainCredential.keyFileUri)
-            database.retrieveMasterKey(mMainCredential.masterPassword, uriInputStream)
+            database.assignMasterKey(mMainCredential.masterPassword, uriInputStream)
         } catch (e: Exception) {
             erase(mBackupKey)
             setError(e)

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

@@ -35,7 +35,7 @@ class CreateDatabaseRunnable(context: Context,
                              private val templateGroupName: String?,
                              mainCredential: MainCredential,
                              private val createDatabaseResult: ((Result) -> Unit)?)
-    : AssignPasswordInDatabaseRunnable(context, mDatabase, databaseUri, mainCredential) {
+    : AssignMainCredentialInDatabaseRunnable(context, mDatabase, databaseUri, mainCredential) {
 
     override fun onStartRun() {
         try {

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

@@ -27,12 +27,12 @@ import android.os.Bundle
 import android.os.IBinder
 import android.util.Log
 import android.widget.Toast
+import androidx.appcompat.app.AlertDialog
 import androidx.fragment.app.FragmentActivity
 import androidx.lifecycle.lifecycleScope
 import com.kunzisoft.keepass.R
 import com.kunzisoft.keepass.activities.dialogs.DatabaseChangedDialogFragment
 import com.kunzisoft.keepass.activities.dialogs.DatabaseChangedDialogFragment.Companion.DATABASE_CHANGED_DIALOG_TAG
-import com.kunzisoft.keepass.app.database.CipherDatabaseEntity
 import com.kunzisoft.keepass.database.crypto.EncryptionAlgorithm
 import com.kunzisoft.keepass.database.crypto.kdf.KdfEngine
 import com.kunzisoft.keepass.database.element.Database
@@ -42,6 +42,7 @@ 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.model.CipherEncryptDatabase
 import com.kunzisoft.keepass.model.MainCredential
 import com.kunzisoft.keepass.model.SnapFileDatabaseInfo
 import com.kunzisoft.keepass.services.DatabaseTaskNotificationService
@@ -53,6 +54,7 @@ import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.
 import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.ACTION_DATABASE_DELETE_ENTRY_HISTORY
 import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.ACTION_DATABASE_DELETE_NODES_TASK
 import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.ACTION_DATABASE_LOAD_TASK
+import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.ACTION_DATABASE_MERGE_TASK
 import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.ACTION_DATABASE_MOVE_NODES_TASK
 import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.ACTION_DATABASE_RELOAD_TASK
 import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.ACTION_DATABASE_REMOVE_UNLINKED_DATA_TASK
@@ -82,7 +84,6 @@ import com.kunzisoft.keepass.utils.DATABASE_START_TASK_ACTION
 import com.kunzisoft.keepass.utils.DATABASE_STOP_TASK_ACTION
 import kotlinx.coroutines.launch
 import java.util.*
-import kotlin.collections.ArrayList
 
 /**
  * Utility class to connect an activity or a service to the DatabaseTaskNotificationService,
@@ -342,18 +343,27 @@ class DatabaseTaskProvider {
     fun startDatabaseLoad(databaseUri: Uri,
                           mainCredential: MainCredential,
                           readOnly: Boolean,
-                          cipherEntity: CipherDatabaseEntity?,
+                          cipherEncryptDatabase: CipherEncryptDatabase?,
                           fixDuplicateUuid: Boolean) {
         start(Bundle().apply {
             putParcelable(DatabaseTaskNotificationService.DATABASE_URI_KEY, databaseUri)
             putParcelable(DatabaseTaskNotificationService.MAIN_CREDENTIAL_KEY, mainCredential)
             putBoolean(DatabaseTaskNotificationService.READ_ONLY_KEY, readOnly)
-            putParcelable(DatabaseTaskNotificationService.CIPHER_ENTITY_KEY, cipherEntity)
+            putParcelable(DatabaseTaskNotificationService.CIPHER_DATABASE_KEY, cipherEncryptDatabase)
             putBoolean(DatabaseTaskNotificationService.FIX_DUPLICATE_UUID_KEY, fixDuplicateUuid)
         }
                 , ACTION_DATABASE_LOAD_TASK)
     }
 
+    fun startDatabaseMerge(fromDatabaseUri: Uri? = null,
+                           mainCredential: MainCredential? = null) {
+        start(Bundle().apply {
+            putParcelable(DatabaseTaskNotificationService.DATABASE_URI_KEY, fromDatabaseUri)
+            putParcelable(DatabaseTaskNotificationService.MAIN_CREDENTIAL_KEY, mainCredential)
+        }
+            , ACTION_DATABASE_MERGE_TASK)
+    }
+
     fun startDatabaseReload(fixDuplicateUuid: Boolean) {
         start(Bundle().apply {
             putBoolean(DatabaseTaskNotificationService.FIX_DUPLICATE_UUID_KEY, fixDuplicateUuid)
@@ -361,6 +371,19 @@ class DatabaseTaskProvider {
                 , ACTION_DATABASE_RELOAD_TASK)
     }
 
+    fun askToStartDatabaseReload(conditionToAsk: Boolean, approved: () -> Unit) {
+        if (conditionToAsk) {
+            AlertDialog.Builder(context)
+                .setMessage(R.string.warning_database_info_reloaded)
+                .setNegativeButton(android.R.string.cancel, null)
+                .setPositiveButton(android.R.string.ok) { _, _ ->
+                    approved.invoke()
+                }.create().show()
+        } else {
+            approved.invoke()
+        }
+    }
+
     fun startDatabaseAssignPassword(databaseUri: Uri,
                                     mainCredential: MainCredential) {
 
@@ -671,9 +694,10 @@ class DatabaseTaskProvider {
     /**
      * Save Database without parameter
      */
-    fun startDatabaseSave(save: Boolean) {
+    fun startDatabaseSave(save: Boolean, saveToUri: Uri? = null) {
         start(Bundle().apply {
             putBoolean(DatabaseTaskNotificationService.SAVE_DATABASE_KEY, save)
+            putParcelable(DatabaseTaskNotificationService.DATABASE_URI_KEY, saveToUri)
         }
                 , ACTION_DATABASE_SAVE)
     }

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

@@ -22,12 +22,11 @@ package com.kunzisoft.keepass.database.action
 import android.content.Context
 import android.net.Uri
 import com.kunzisoft.keepass.app.database.CipherDatabaseAction
-import com.kunzisoft.keepass.app.database.CipherDatabaseEntity
 import com.kunzisoft.keepass.app.database.FileDatabaseHistoryAction
 import com.kunzisoft.keepass.database.element.Database
 import com.kunzisoft.keepass.database.element.binary.BinaryData
-import com.kunzisoft.keepass.database.element.binary.LoadedKey
 import com.kunzisoft.keepass.database.exception.LoadDatabaseException
+import com.kunzisoft.keepass.model.CipherEncryptDatabase
 import com.kunzisoft.keepass.model.MainCredential
 import com.kunzisoft.keepass.settings.PreferencesUtil
 import com.kunzisoft.keepass.tasks.ActionRunnable
@@ -39,7 +38,7 @@ class LoadDatabaseRunnable(private val context: Context,
                            private val mUri: Uri,
                            private val mMainCredential: MainCredential,
                            private val mReadonly: Boolean,
-                           private val mCipherEntity: CipherDatabaseEntity?,
+                           private val mCipherEncryptDatabase: CipherEncryptDatabase?,
                            private val mFixDuplicateUUID: Boolean,
                            private val progressTaskUpdater: ProgressTaskUpdater?,
                            private val mLoadDatabaseResult: ((Result) -> Unit)?)
@@ -60,7 +59,6 @@ class LoadDatabaseRunnable(private val context: Context,
                     { memoryWanted ->
                         BinaryData.canMemoryBeAllocatedInRAM(context, memoryWanted)
                     },
-                    LoadedKey.generateNewCipherKey(),
                     mFixDuplicateUUID,
                     progressTaskUpdater)
         }
@@ -77,9 +75,9 @@ class LoadDatabaseRunnable(private val context: Context,
             }
 
             // Register the biometric
-            mCipherEntity?.let { cipherDatabaseEntity ->
+            mCipherEncryptDatabase?.let { cipherDatabase ->
                 CipherDatabaseAction.getInstance(context)
-                        .addOrUpdateCipherDatabase(cipherDatabaseEntity) // return value not called
+                        .addOrUpdateCipherDatabase(cipherDatabase) // return value not called
             }
 
             // Register the current time to init the lock timer

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

@@ -0,0 +1,67 @@
+/*
+ * Copyright 2021 Jeremy Jamet / Kunzisoft.
+ *     
+ * This file is part of KeePassDX.
+ *
+ *  KeePassDX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePassDX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+package com.kunzisoft.keepass.database.action
+
+import android.content.Context
+import android.net.Uri
+import com.kunzisoft.keepass.database.element.Database
+import com.kunzisoft.keepass.database.element.binary.BinaryData
+import com.kunzisoft.keepass.database.exception.LoadDatabaseException
+import com.kunzisoft.keepass.model.MainCredential
+import com.kunzisoft.keepass.settings.PreferencesUtil
+import com.kunzisoft.keepass.tasks.ActionRunnable
+import com.kunzisoft.keepass.tasks.ProgressTaskUpdater
+
+class MergeDatabaseRunnable(private val context: Context,
+                            private val mDatabase: Database,
+                            private val mDatabaseToMergeUri: Uri?,
+                            private val mDatabaseToMergeMainCredential: MainCredential?,
+                            private val progressTaskUpdater: ProgressTaskUpdater?,
+                            private val mLoadDatabaseResult: ((Result) -> Unit)?)
+    : ActionRunnable() {
+
+    override fun onStartRun() {
+        mDatabase.wasReloaded = true
+    }
+
+    override fun onActionRun() {
+        try {
+            mDatabase.mergeData(mDatabaseToMergeUri,
+                mDatabaseToMergeMainCredential,
+                context.contentResolver,
+                { memoryWanted ->
+                    BinaryData.canMemoryBeAllocatedInRAM(context, memoryWanted)
+                },
+                progressTaskUpdater
+            )
+        } catch (e: LoadDatabaseException) {
+            setError(e)
+        }
+
+        if (result.isSuccess) {
+            // Register the current time to init the lock timer
+            PreferencesUtil.saveCurrentTime(context)
+        }
+    }
+
+    override fun onFinishRun() {
+        mLoadDatabaseResult?.invoke(result)
+    }
+}

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

@@ -22,7 +22,6 @@ package com.kunzisoft.keepass.database.action
 import android.content.Context
 import com.kunzisoft.keepass.database.element.Database
 import com.kunzisoft.keepass.database.element.binary.BinaryData
-import com.kunzisoft.keepass.database.element.binary.LoadedKey
 import com.kunzisoft.keepass.database.exception.LoadDatabaseException
 import com.kunzisoft.keepass.settings.PreferencesUtil
 import com.kunzisoft.keepass.tasks.ActionRunnable
@@ -35,23 +34,18 @@ class ReloadDatabaseRunnable(private val context: Context,
                              private val mLoadDatabaseResult: ((Result) -> Unit)?)
     : ActionRunnable() {
 
-    private var tempCipherKey: LoadedKey? = null
-
     override fun onStartRun() {
-        tempCipherKey = mDatabase.binaryCache.loadedCipherKey
         // Clear before we load
-        mDatabase.clear(UriUtil.getBinaryDir(context))
+        mDatabase.clearIndexesAndBinaries(UriUtil.getBinaryDir(context))
         mDatabase.wasReloaded = true
     }
 
     override fun onActionRun() {
         try {
             mDatabase.reloadData(context.contentResolver,
-                    UriUtil.getBinaryDir(context),
                     { memoryWanted ->
                         BinaryData.canMemoryBeAllocatedInRAM(context, memoryWanted)
                     },
-                    tempCipherKey ?: LoadedKey.generateNewCipherKey(),
                     progressTaskUpdater)
         } catch (e: LoadDatabaseException) {
             setError(e)
@@ -61,7 +55,6 @@ class ReloadDatabaseRunnable(private val context: Context,
             // Register the current time to init the lock timer
             PreferencesUtil.saveCurrentTime(context)
         } else {
-            tempCipherKey = null
             mDatabase.clearAndClose(context)
         }
     }

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

@@ -20,13 +20,15 @@
 package com.kunzisoft.keepass.database.action
 
 import android.content.Context
+import android.net.Uri
 import com.kunzisoft.keepass.database.element.Database
 import com.kunzisoft.keepass.database.exception.DatabaseException
 import com.kunzisoft.keepass.tasks.ActionRunnable
 
 open class SaveDatabaseRunnable(protected var context: Context,
                                 protected var database: Database,
-                                private var saveDatabase: Boolean)
+                                private var saveDatabase: Boolean,
+                                private var databaseCopyUri: Uri? = null)
     : ActionRunnable() {
 
     var mAfterSaveDatabase: ((Result) -> Unit)? = null
@@ -34,9 +36,10 @@ open class SaveDatabaseRunnable(protected var context: Context,
     override fun onStartRun() {}
 
     override fun onActionRun() {
+        database.checkVersion()
         if (saveDatabase && result.isSuccess) {
             try {
-                database.saveData(context.contentResolver)
+                database.saveData(databaseCopyUri, context.contentResolver)
             } catch (e: DatabaseException) {
                 setError(e)
             }

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

@@ -36,7 +36,11 @@ abstract class ActionNodeDatabaseRunnable(
     abstract fun nodeAction()
 
     override fun onStartRun() {
+        try {
             nodeAction()
+        } catch (e: Exception) {
+            setError(e)
+        }
         super.onStartRun()
     }
 

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

@@ -40,7 +40,7 @@ class DeleteNodesRunnable(context: Context,
 
         foreachNode@ for(nodeToDelete in mNodesToDelete) {
             mOldParent = nodeToDelete.parent
-            mOldParent?.touch(modified = false, touchParents = true)
+            nodeToDelete.touch(modified = true, touchParents = true)
 
             when (nodeToDelete.type) {
                 Type.GROUP -> {
@@ -50,9 +50,9 @@ class DeleteNodesRunnable(context: Context,
                     // Remove Node from parent
                     mCanRecycle = database.canRecycle(groupToDelete)
                     if (mCanRecycle) {
-                        groupToDelete.touch(modified = false, touchParents = true)
                         database.recycle(groupToDelete, context.resources)
                         groupToDelete.setPreviousParentGroup(mOldParent)
+                        groupToDelete.touch(modified = true, touchParents = true)
                     } else {
                         database.deleteGroup(groupToDelete)
                     }
@@ -64,9 +64,9 @@ class DeleteNodesRunnable(context: Context,
                     // Remove Node from parent
                     mCanRecycle = database.canRecycle(entryToDelete)
                     if (mCanRecycle) {
-                        entryToDelete.touch(modified = false, touchParents = true)
                         database.recycle(entryToDelete, context.resources)
                         entryToDelete.setPreviousParentGroup(mOldParent)
+                        entryToDelete.touch(modified = true, touchParents = true)
                     } else {
                         database.deleteEntry(entryToDelete)
                     }

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

@@ -43,6 +43,7 @@ class MoveNodesRunnable constructor(
         foreachNode@ for(nodeToMove in mNodesToMove) {
             // Move node in new parent
             mOldParent = nodeToMove.parent
+            nodeToMove.touch(modified = true, touchParents = true)
 
             when (nodeToMove.type) {
                 Type.GROUP -> {
@@ -52,9 +53,9 @@ class MoveNodesRunnable constructor(
                             // and if not in the current group
                             && groupToMove != mNewParent
                             && !mNewParent.isContainedIn(groupToMove)) {
-                        groupToMove.touch(modified = true, touchParents = true)
                         database.moveGroupTo(groupToMove, mNewParent)
                         groupToMove.setPreviousParentGroup(mOldParent)
+                        groupToMove.touch(modified = true, touchParents = true)
                     } else {
                         // Only finish thread
                         setError(MoveGroupDatabaseException())
@@ -67,9 +68,9 @@ class MoveNodesRunnable constructor(
                     if (mOldParent != mNewParent
                             // and root can contains entry
                             && (mNewParent != database.rootGroup || database.rootCanContainsEntry())) {
-                        entryToMove.touch(modified = true, touchParents = true)
                         database.moveEntryTo(entryToMove, mNewParent)
                         entryToMove.setPreviousParentGroup(mOldParent)
+                        entryToMove.touch(modified = true, touchParents = true)
                     } else {
                         // Only finish thread
                         setError(MoveEntryDatabaseException())

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

@@ -42,6 +42,9 @@ class UpdateGroupRunnable constructor(
             // Update group with new values
             mNewGroup.touch(modified = true, touchParents = true)
 
+            if (database.rootGroup == mOldGroup) {
+                database.rootGroup = mNewGroup
+            }
             // Only change data in index
             database.updateGroup(mNewGroup)
         }
@@ -50,6 +53,9 @@ class UpdateGroupRunnable constructor(
     override fun nodeFinish(): ActionNodesValues {
         if (!result.isSuccess) {
             // If we fail to save, back out changes to global structure
+            if (database.rootGroup == mNewGroup) {
+                database.rootGroup = mOldGroup
+            }
             database.updateGroup(mOldGroup)
         }
 

app/src/main/java/com/kunzisoft/keepass/database/cursor/EntryCursor.kt

@@ -1,89 +0,0 @@
-/*
- * Copyright 2019 Jeremy Jamet / Kunzisoft.
- *
- * This file is part of KeePassDX.
- *
- *  KeePassDX is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 3 of the License, or
- *  (at your option) any later version.
- *
- *  KeePassDX is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-package com.kunzisoft.keepass.database.cursor
-
-import android.database.MatrixCursor
-import android.provider.BaseColumns
-import com.kunzisoft.keepass.database.element.DateInstant
-import com.kunzisoft.keepass.database.element.entry.EntryVersioned
-import com.kunzisoft.keepass.database.element.icon.IconImage
-import com.kunzisoft.keepass.database.element.icon.IconImageCustom
-import com.kunzisoft.keepass.database.element.icon.IconImageStandard
-import com.kunzisoft.keepass.database.element.node.NodeId
-import java.util.*
-
-abstract class EntryCursor<EntryId, PwEntryV : EntryVersioned<*, EntryId, *, *>> : MatrixCursor(arrayOf(
-        _ID,
-        COLUMN_INDEX_UUID_MOST_SIGNIFICANT_BITS,
-        COLUMN_INDEX_UUID_LEAST_SIGNIFICANT_BITS,
-        COLUMN_INDEX_TITLE,
-        COLUMN_INDEX_ICON_STANDARD,
-        COLUMN_INDEX_ICON_CUSTOM_UUID_MOST_SIGNIFICANT_BITS,
-        COLUMN_INDEX_ICON_CUSTOM_UUID_LEAST_SIGNIFICANT_BITS,
-        COLUMN_INDEX_USERNAME,
-        COLUMN_INDEX_PASSWORD,
-        COLUMN_INDEX_URL,
-        COLUMN_INDEX_NOTES,
-        COLUMN_INDEX_EXPIRY_TIME,
-        COLUMN_INDEX_EXPIRES
-    )) {
-
-    protected var entryId: Long = 0
-
-    abstract fun addEntry(entry: PwEntryV)
-
-    abstract fun getPwNodeId(): NodeId<EntryId>
-
-    open fun populateEntry(pwEntry: PwEntryV,
-                           retrieveStandardIcon: (Int) -> IconImageStandard,
-                           retrieveCustomIcon: (UUID) -> IconImageCustom) {
-        pwEntry.nodeId = getPwNodeId()
-        pwEntry.title = getString(getColumnIndex(COLUMN_INDEX_TITLE))
-
-        val iconStandard = retrieveStandardIcon.invoke(getInt(getColumnIndex(COLUMN_INDEX_ICON_STANDARD)))
-        val iconCustom = retrieveCustomIcon.invoke(UUID(getLong(getColumnIndex(COLUMN_INDEX_ICON_CUSTOM_UUID_MOST_SIGNIFICANT_BITS)),
-                getLong(getColumnIndex(COLUMN_INDEX_ICON_CUSTOM_UUID_LEAST_SIGNIFICANT_BITS))))
-        pwEntry.icon = IconImage(iconStandard, iconCustom)
-
-        pwEntry.username = getString(getColumnIndex(COLUMN_INDEX_USERNAME))
-        pwEntry.password = getString(getColumnIndex(COLUMN_INDEX_PASSWORD))
-        pwEntry.url = getString(getColumnIndex(COLUMN_INDEX_URL))
-        pwEntry.notes = getString(getColumnIndex(COLUMN_INDEX_NOTES))
-        pwEntry.expiryTime = DateInstant(getString(getColumnIndex(COLUMN_INDEX_EXPIRY_TIME)))
-        pwEntry.expires = getString(getColumnIndex(COLUMN_INDEX_EXPIRES))
-                                        .lowercase(Locale.ENGLISH) != "false"
-    }
-
-    companion object {
-        const val _ID = BaseColumns._ID
-        const val COLUMN_INDEX_UUID_MOST_SIGNIFICANT_BITS = "UUID_most_significant_bits"
-        const val COLUMN_INDEX_UUID_LEAST_SIGNIFICANT_BITS = "UUID_least_significant_bits"
-        const val COLUMN_INDEX_TITLE = "title"
-        const val COLUMN_INDEX_ICON_STANDARD = "icon_standard"
-        const val COLUMN_INDEX_ICON_CUSTOM_UUID_MOST_SIGNIFICANT_BITS = "icon_custom_UUID_most_significant_bits"
-        const val COLUMN_INDEX_ICON_CUSTOM_UUID_LEAST_SIGNIFICANT_BITS = "icon_custom_UUID_least_significant_bits"
-        const val COLUMN_INDEX_USERNAME = "username"
-        const val COLUMN_INDEX_PASSWORD = "password"
-        const val COLUMN_INDEX_URL = "URL"
-        const val COLUMN_INDEX_NOTES = "notes"
-        const val COLUMN_INDEX_EXPIRY_TIME = "expiry_time"
-        const val COLUMN_INDEX_EXPIRES = "expires"
-    }
-}

app/src/main/java/com/kunzisoft/keepass/database/cursor/EntryCursorKDB.kt

@@ -1,45 +0,0 @@
-/*
- * Copyright 2019 Jeremy Jamet / Kunzisoft.
- *
- * This file is part of KeePassDX.
- *
- *  KeePassDX is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 3 of the License, or
- *  (at your option) any later version.
- *
- *  KeePassDX is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-package com.kunzisoft.keepass.database.cursor
-
-import com.kunzisoft.keepass.database.element.entry.EntryKDB
-
-class EntryCursorKDB : EntryCursorUUID<EntryKDB>() {
-
-    override fun addEntry(entry: EntryKDB) {
-        addRow(arrayOf(
-                entryId,
-                entry.id.mostSignificantBits,
-                entry.id.leastSignificantBits,
-                entry.title,
-                entry.icon.standard.id,
-                entry.icon.custom.uuid.mostSignificantBits,
-                entry.icon.custom.uuid.leastSignificantBits,
-                entry.username,
-                entry.password,
-                entry.url,
-                entry.notes,
-                entry.expiryTime,
-                entry.expires
-        ))
-        entryId++
-    }
-
-}

app/src/main/java/com/kunzisoft/keepass/database/cursor/EntryCursorKDBX.kt

@@ -1,73 +0,0 @@
-/*
- * Copyright 2019 Jeremy Jamet / Kunzisoft.
- *
- * This file is part of KeePassDX.
- *
- *  KeePassDX is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 3 of the License, or
- *  (at your option) any later version.
- *
- *  KeePassDX is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-package com.kunzisoft.keepass.database.cursor
-
-import com.kunzisoft.keepass.database.element.entry.EntryKDBX
-import com.kunzisoft.keepass.database.element.icon.IconImageCustom
-import com.kunzisoft.keepass.database.element.icon.IconImageStandard
-import java.util.*
-
-class EntryCursorKDBX : EntryCursorUUID<EntryKDBX>() {
-
-    private val extraFieldCursor: ExtraFieldCursor = ExtraFieldCursor()
-
-    override fun addEntry(entry: EntryKDBX) {
-        addRow(arrayOf(
-                entryId,
-                entry.id.mostSignificantBits,
-                entry.id.leastSignificantBits,
-                entry.title,
-                entry.icon.standard.id,
-                entry.icon.custom.uuid.mostSignificantBits,
-                entry.icon.custom.uuid.leastSignificantBits,
-                entry.username,
-                entry.password,
-                entry.url,
-                entry.notes,
-                entry.expiryTime,
-                entry.expires
-        ))
-
-        entry.doForEachDecodedCustomField { field ->
-            extraFieldCursor.addExtraField(entryId, field)
-        }
-
-        entryId++
-    }
-
-    override fun populateEntry(pwEntry: EntryKDBX,
-                               retrieveStandardIcon: (Int) -> IconImageStandard,
-                               retrieveCustomIcon: (UUID) -> IconImageCustom) {
-        super.populateEntry(pwEntry, retrieveStandardIcon, retrieveCustomIcon)
-
-        // Retrieve extra fields
-        if (extraFieldCursor.moveToFirst()) {
-            while (!extraFieldCursor.isAfterLast) {
-                // Add a new extra field only if entryId is the one we want
-                if (extraFieldCursor.getLong(extraFieldCursor
-                                .getColumnIndex(ExtraFieldCursor.FOREIGN_KEY_ENTRY_ID))
-                        == getLong(getColumnIndex(_ID))) {
-                    extraFieldCursor.populateExtraFieldInEntry(pwEntry)
-                }
-                extraFieldCursor.moveToNext()
-            }
-        }
-    }
-}

app/src/main/java/com/kunzisoft/keepass/database/cursor/EntryCursorUUID.kt

@@ -1,34 +0,0 @@
-/*
- * Copyright 2019 Jeremy Jamet / Kunzisoft.
- *
- * This file is part of KeePassDX.
- *
- *  KeePassDX is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 3 of the License, or
- *  (at your option) any later version.
- *
- *  KeePassDX is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-package com.kunzisoft.keepass.database.cursor
-
-import com.kunzisoft.keepass.database.element.entry.EntryVersioned
-import com.kunzisoft.keepass.database.element.node.NodeId
-import com.kunzisoft.keepass.database.element.node.NodeIdUUID
-import java.util.*
-
-abstract class EntryCursorUUID<EntryV: EntryVersioned<*, UUID, *, *>>: EntryCursor<UUID, EntryV>() {
-
-    override fun getPwNodeId(): NodeId<UUID> {
-        return NodeIdUUID(
-                UUID(getLong(getColumnIndex(COLUMN_INDEX_UUID_MOST_SIGNIFICANT_BITS)),
-                        getLong(getColumnIndex(COLUMN_INDEX_UUID_LEAST_SIGNIFICANT_BITS))))
-    }
-}

app/src/main/java/com/kunzisoft/keepass/database/cursor/ExtraFieldCursor.kt

@@ -1,62 +0,0 @@
-/*
- * Copyright 2019 Jeremy Jamet / Kunzisoft.
- *
- * This file is part of KeePassDX.
- *
- *  KeePassDX is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 3 of the License, or
- *  (at your option) any later version.
- *
- *  KeePassDX is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-package com.kunzisoft.keepass.database.cursor
-
-import android.database.MatrixCursor
-import android.provider.BaseColumns
-import com.kunzisoft.keepass.database.element.Field
-
-import com.kunzisoft.keepass.database.element.entry.EntryKDBX
-import com.kunzisoft.keepass.database.element.security.ProtectedString
-
-class ExtraFieldCursor : MatrixCursor(arrayOf(
-        _ID,
-        FOREIGN_KEY_ENTRY_ID,
-        COLUMN_LABEL,
-        COLUMN_PROTECTION,
-        COLUMN_VALUE
-    )) {
-
-    private var fieldId: Long = 0
-
-    @Synchronized
-    fun addExtraField(entryId: Long, field: Field) {
-        addRow(arrayOf(fieldId,
-                entryId,
-                field.name,
-                if (field.protectedValue.isProtected) 1 else 0,
-                field.protectedValue.toString()))
-        fieldId++
-    }
-
-    fun populateExtraFieldInEntry(pwEntry: EntryKDBX) {
-        pwEntry.putField(getString(getColumnIndex(COLUMN_LABEL)),
-                ProtectedString(getInt(getColumnIndex(COLUMN_PROTECTION)) > 0,
-                        getString(getColumnIndex(COLUMN_VALUE))))
-    }
-
-    companion object {
-        const val _ID = BaseColumns._ID
-        const val FOREIGN_KEY_ENTRY_ID = "entry_id"
-        const val COLUMN_LABEL = "label"
-        const val COLUMN_PROTECTION = "protection"
-        const val COLUMN_VALUE = "value"
-    }
-}

app/src/main/java/com/kunzisoft/keepass/database/element/CustomData.kt

@@ -1,3 +1,22 @@
+/*
+ * Copyright 2020 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePassDX.
+ *
+ *  KeePassDX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePassDX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
 package com.kunzisoft.keepass.database.element
 
 import android.os.Parcel
@@ -17,7 +36,10 @@ class CustomData : Parcelable {
     }
 
     constructor(parcel: Parcel) {
-        ParcelableUtil.readStringParcelableMap(parcel, CustomDataItem::class.java)
+        mCustomDataItems.clear()
+        mCustomDataItems.putAll(ParcelableUtil
+            .readStringParcelableMap(parcel, CustomDataItem::class.java)
+        )
     }
 
     fun get(key: String): CustomDataItem? {
@@ -46,6 +68,10 @@ class CustomData : Parcelable {
         }
     }
 
+    override fun toString(): String {
+        return mCustomDataItems.toString()
+    }
+
     override fun writeToParcel(parcel: Parcel, flags: Int) {
         ParcelableUtil.writeStringParcelableMap(parcel, flags, mCustomDataItems)
     }

app/src/main/java/com/kunzisoft/keepass/database/element/CustomDataItem.kt

@@ -21,6 +21,10 @@ class CustomDataItem : Parcelable {
         this.lastModificationTime = lastModificationTime
     }
 
+    override fun toString(): String {
+        return value
+    }
+
     override fun writeToParcel(parcel: Parcel, flags: Int) {
         parcel.writeString(key)
         parcel.writeString(value)

app/src/main/java/com/kunzisoft/keepass/database/element/Database.kt

@@ -22,17 +22,16 @@ package com.kunzisoft.keepass.database.element
 import android.content.ContentResolver
 import android.content.Context
 import android.content.res.Resources
+import android.graphics.Color
 import android.net.Uri
-import android.os.Build
 import android.util.Log
-import com.kunzisoft.keepass.app.database.FileDatabaseHistoryAction
+import com.kunzisoft.androidclearchroma.ChromaUtil
 import com.kunzisoft.keepass.database.action.node.NodeHandler
 import com.kunzisoft.keepass.database.crypto.EncryptionAlgorithm
 import com.kunzisoft.keepass.database.crypto.kdf.KdfEngine
 import com.kunzisoft.keepass.database.element.binary.AttachmentPool
 import com.kunzisoft.keepass.database.element.binary.BinaryCache
 import com.kunzisoft.keepass.database.element.binary.BinaryData
-import com.kunzisoft.keepass.database.element.binary.LoadedKey
 import com.kunzisoft.keepass.database.element.database.CompressionAlgorithm
 import com.kunzisoft.keepass.database.element.database.DatabaseKDB
 import com.kunzisoft.keepass.database.element.database.DatabaseKDBX
@@ -52,6 +51,7 @@ import com.kunzisoft.keepass.database.file.input.DatabaseInputKDB
 import com.kunzisoft.keepass.database.file.input.DatabaseInputKDBX
 import com.kunzisoft.keepass.database.file.output.DatabaseOutputKDB
 import com.kunzisoft.keepass.database.file.output.DatabaseOutputKDBX
+import com.kunzisoft.keepass.database.merge.DatabaseKDBXMerger
 import com.kunzisoft.keepass.database.search.SearchHelper
 import com.kunzisoft.keepass.database.search.SearchParameters
 import com.kunzisoft.keepass.icons.IconDrawableFactory
@@ -62,7 +62,6 @@ import com.kunzisoft.keepass.utils.UriUtil
 import com.kunzisoft.keepass.utils.readBytes4ToUInt
 import java.io.*
 import java.util.*
-import kotlin.collections.ArrayList
 
 
 class Database {
@@ -94,6 +93,8 @@ class Database {
      */
     var wasReloaded = false
 
+    var dataModifiedSinceLastLoading = false
+
     var loadTimestamp: Long? = null
         private set
 
@@ -112,7 +113,7 @@ class Database {
 
     private val iconsManager: IconsManager
         get() {
-            return mDatabaseKDB?.iconsManager ?: mDatabaseKDBX?.iconsManager ?: IconsManager(binaryCache)
+            return mDatabaseKDB?.iconsManager ?: mDatabaseKDBX?.iconsManager ?: IconsManager()
         }
 
     fun doForEachStandardIcons(action: (IconImageStandard) -> Unit) {
@@ -130,7 +131,7 @@ class Database {
         return iconsManager.doForEachCustomIcon(action)
     }
 
-    fun getCustomIcon(iconId: UUID): IconImageCustom {
+    fun getCustomIcon(iconId: UUID): IconImageCustom? {
         return iconsManager.getIcon(iconId)
     }
 
@@ -144,11 +145,12 @@ class Database {
 
     fun removeCustomIcon(customIcon: IconImageCustom) {
         iconDrawableFactory.clearFromCache(customIcon)
-        iconsManager.removeCustomIcon(binaryCache, customIcon.uuid)
+        iconsManager.removeCustomIcon(customIcon.uuid, binaryCache)
+        mDatabaseKDBX?.addDeletedObject(customIcon.uuid)
     }
 
     fun updateCustomIcon(customIcon: IconImageCustom) {
-        iconsManager.getIcon(customIcon.uuid).updateWith(customIcon)
+        iconsManager.getIcon(customIcon.uuid)?.updateWith(customIcon)
     }
 
     fun getTemplates(templateCreation: Boolean): List<Template> {
@@ -212,6 +214,7 @@ class Database {
         set(name) {
             mDatabaseKDBX?.name = name
             mDatabaseKDBX?.nameChanged = DateInstant()
+            dataModifiedSinceLastLoading = true
         }
 
     val allowDescription: Boolean
@@ -224,33 +227,39 @@ class Database {
         set(description) {
             mDatabaseKDBX?.description = description
             mDatabaseKDBX?.descriptionChanged = DateInstant()
+            dataModifiedSinceLastLoading = true
         }
 
-    val allowDefaultUsername: Boolean
-        get() = mDatabaseKDBX != null
-        // TODO get() = mDatabaseKDB != null || mDatabaseKDBX != null
-
     var defaultUsername: String
         get() {
-            return mDatabaseKDBX?.defaultUserName ?: "" // TODO mDatabaseKDB default username
+            return mDatabaseKDB?.defaultUserName ?: mDatabaseKDBX?.defaultUserName ?: ""
         }
         set(username) {
+            mDatabaseKDB?.defaultUserName = username
             mDatabaseKDBX?.defaultUserName = username
             mDatabaseKDBX?.defaultUserNameChanged = DateInstant()
+            dataModifiedSinceLastLoading = true
         }
 
-    val allowCustomColor: Boolean
-        get() = mDatabaseKDBX != null
-        // TODO get() = mDatabaseKDB != null || mDatabaseKDBX != null
-
-    // with format "#000000"
-    var customColor: String
+    var customColor: Int?
         get() {
-            return mDatabaseKDBX?.color ?: "" // TODO mDatabaseKDB color
+            var colorInt: Int? = null
+            mDatabaseKDBX?.color?.let {
+                try {
+                    colorInt = Color.parseColor(it)
+                } catch (e: Exception) {}
+            }
+            return mDatabaseKDB?.color ?: colorInt
         }
         set(value) {
-            // TODO Check color string
-            mDatabaseKDBX?.color = value
+            mDatabaseKDB?.color = value
+            mDatabaseKDBX?.color = if (value == null) {
+                ""
+            } else {
+                ChromaUtil.getFormattedColorString(value, false)
+            }
+            mDatabaseKDBX?.settingsChanged = DateInstant()
+            dataModifiedSinceLastLoading = true
         }
 
     val allowOTP: Boolean
@@ -259,6 +268,15 @@ class Database {
     val version: String
         get() = mDatabaseKDB?.version ?: mDatabaseKDBX?.version ?: "-"
 
+    fun checkVersion() {
+        mDatabaseKDBX?.getMinKdbxVersion()?.let {
+            mDatabaseKDBX?.kdbxVersion = it
+        }
+    }
+
+    val defaultFileExtension: String
+        get() = mDatabaseKDB?.defaultFileExtension ?: mDatabaseKDBX?.defaultFileExtension ?: ".bin"
+
     val type: Class<*>?
         get() = mDatabaseKDB?.javaClass ?: mDatabaseKDBX?.javaClass
 
@@ -274,6 +292,8 @@ class Database {
             value?.let {
                 mDatabaseKDBX?.compressionAlgorithm = it
             }
+            mDatabaseKDBX?.settingsChanged = DateInstant()
+            dataModifiedSinceLastLoading = true
         }
 
     fun compressionForNewEntry(): Boolean {
@@ -290,6 +310,7 @@ class Database {
     fun updateDataBinaryCompression(oldCompression: CompressionAlgorithm,
                                     newCompression: CompressionAlgorithm) {
         mDatabaseKDBX?.changeBinaryCompression(oldCompression, newCompression)
+        dataModifiedSinceLastLoading = true
     }
 
     val allowNoMasterKey: Boolean
@@ -309,8 +330,6 @@ class Database {
         set(algorithm) {
             algorithm?.let {
                 mDatabaseKDBX?.encryptionAlgorithm = algorithm
-                mDatabaseKDBX?.setDataEngine(algorithm.cipherEngine)
-                mDatabaseKDBX?.cipherUuid = algorithm.uuid
             }
         }
 
@@ -323,13 +342,10 @@ class Database {
     var kdfEngine: KdfEngine?
         get() = mDatabaseKDB?.kdfEngine ?: mDatabaseKDBX?.kdfEngine
         set(kdfEngine) {
-            kdfEngine?.let {
-                if (mDatabaseKDBX?.kdfParameters?.uuid != kdfEngine.defaultParameters.uuid)
-                    mDatabaseKDBX?.kdfParameters = kdfEngine.defaultParameters
-                numberKeyEncryptionRounds = kdfEngine.defaultKeyRounds
-                memoryUsage = kdfEngine.defaultMemoryUsage
-                parallelism = kdfEngine.defaultParallelism
-            }
+            mDatabaseKDB?.kdfEngine = kdfEngine
+            mDatabaseKDBX?.kdfEngine = kdfEngine
+            mDatabaseKDBX?.settingsChanged = DateInstant()
+            dataModifiedSinceLastLoading = true
         }
 
     fun getKeyDerivationName(): String {
@@ -341,6 +357,8 @@ class Database {
         set(numberRounds) {
             mDatabaseKDB?.numberKeyEncryptionRounds = numberRounds
             mDatabaseKDBX?.numberKeyEncryptionRounds = numberRounds
+            mDatabaseKDBX?.settingsChanged = DateInstant()
+            dataModifiedSinceLastLoading = true
         }
 
     var memoryUsage: Long
@@ -349,12 +367,16 @@ class Database {
         }
         set(memory) {
             mDatabaseKDBX?.memoryUsage = memory
+            mDatabaseKDBX?.settingsChanged = DateInstant()
+            dataModifiedSinceLastLoading = true
         }
 
     var parallelism: Long
         get() = mDatabaseKDBX?.parallelism ?: KdfEngine.UNKNOWN_VALUE
         set(parallelism) {
             mDatabaseKDBX?.parallelism = parallelism
+            mDatabaseKDBX?.settingsChanged = DateInstant()
+            dataModifiedSinceLastLoading = true
         }
 
     var masterKey: ByteArray
@@ -362,9 +384,11 @@ class Database {
         set(masterKey) {
             mDatabaseKDB?.masterKey = masterKey
             mDatabaseKDBX?.masterKey = masterKey
+            mDatabaseKDBX?.settingsChanged = DateInstant()
+            dataModifiedSinceLastLoading = true
         }
 
-    val rootGroup: Group?
+    var rootGroup: Group?
         get() {
             mDatabaseKDB?.rootGroup?.let {
                 return Group(it)
@@ -374,6 +398,25 @@ class Database {
             }
             return null
         }
+        set(value) {
+            value?.groupKDB?.let { rootKDB ->
+                mDatabaseKDB?.rootGroup = rootKDB
+            }
+            value?.groupKDBX?.let { rootKDBX ->
+                mDatabaseKDBX?.rootGroup = rootKDBX
+            }
+        }
+
+    val rootGroupIsVirtual: Boolean
+        get() {
+            mDatabaseKDB?.let {
+                return true
+            }
+            mDatabaseKDBX?.let {
+                return false
+            }
+            return true
+        }
 
     /**
      * Do not modify groups here, used for read only
@@ -393,6 +436,8 @@ class Database {
         }
         set(value) {
             mDatabaseKDBX?.historyMaxItems = value
+            mDatabaseKDBX?.settingsChanged = DateInstant()
+            dataModifiedSinceLastLoading = true
         }
 
     var historyMaxSize: Long
@@ -401,6 +446,8 @@ class Database {
         }
         set(value) {
             mDatabaseKDBX?.historyMaxSize = value
+            mDatabaseKDBX?.settingsChanged = DateInstant()
+            dataModifiedSinceLastLoading = true
         }
 
     /**
@@ -421,15 +468,17 @@ class Database {
         } else {
             mDatabaseKDBX?.removeRecycleBin()
         }
+        mDatabaseKDBX?.recycleBinChanged = DateInstant()
+        dataModifiedSinceLastLoading = true
     }
 
     val recycleBin: Group?
         get() {
             mDatabaseKDB?.backupGroup?.let {
-                return Group(it)
+                return getGroupById(it.nodeId) ?: Group(it)
             }
             mDatabaseKDBX?.recycleBin?.let {
-                return Group(it)
+                return getGroupById(it.nodeId) ?: Group(it)
             }
             return null
         }
@@ -439,15 +488,17 @@ class Database {
         if (group != null) {
             mDatabaseKDBX?.recycleBinUUID = group.nodeIdKDBX.id
         } else {
-            mDatabaseKDBX?.removeTemplatesGroup()
+            mDatabaseKDBX?.removeRecycleBin()
         }
+        mDatabaseKDBX?.recycleBinChanged = DateInstant()
+        dataModifiedSinceLastLoading = true
     }
 
     /**
      * Determine if a configurable templates group is available or not for this version of database
      * @return true if a configurable templates group available
      */
-    val allowConfigurableTemplatesGroup: Boolean
+    val allowTemplatesGroup: Boolean
         get() = mDatabaseKDBX != null
 
     // Maybe another templates method with KDBX5
@@ -456,6 +507,8 @@ class Database {
 
     fun enableTemplates(enable: Boolean, templatesGroupName: String) {
         mDatabaseKDBX?.enableTemplatesGroup(enable, templatesGroupName)
+        mDatabaseKDBX?.entryTemplatesGroupChanged = DateInstant()
+        dataModifiedSinceLastLoading = true
     }
 
     val templatesGroup: Group?
@@ -471,8 +524,10 @@ class Database {
         if (group != null) {
             mDatabaseKDBX?.entryTemplatesGroup = group.nodeIdKDBX.id
         } else {
-            mDatabaseKDBX?.entryTemplatesGroup
+            mDatabaseKDBX?.removeTemplatesGroup()
         }
+        mDatabaseKDBX?.entryTemplatesGroupChanged = DateInstant()
+        dataModifiedSinceLastLoading = true
     }
 
     val groupNamesNotAllowed: List<String>
@@ -499,6 +554,7 @@ class Database {
         this.fileUri = databaseUri
         // Set Database state
         this.loaded = true
+        this.dataModifiedSinceLastLoading = false
     }
 
     @Throws(LoadDatabaseException::class)
@@ -555,7 +611,6 @@ class Database {
                  contentResolver: ContentResolver,
                  cacheDirectory: File,
                  isRAMSufficient: (memoryWanted: Long) -> Boolean,
-                 tempCipherKey: LoadedKey,
                  fixDuplicateUUID: Boolean,
                  progressTaskUpdater: ProgressTaskUpdater?) {
 
@@ -576,99 +631,231 @@ class Database {
             // Read database stream for the first time
             readDatabaseStream(contentResolver, uri,
                     { databaseInputStream ->
-                        DatabaseInputKDB(cacheDirectory, isRAMSufficient)
+                        val databaseKDB = DatabaseKDB().apply {
+                            binaryCache.cacheDirectory = cacheDirectory
+                            changeDuplicateId = fixDuplicateUUID
+                        }
+                        DatabaseInputKDB(databaseKDB)
                             .openDatabase(databaseInputStream,
+                                progressTaskUpdater
+                            ) {
+                                databaseKDB.retrieveMasterKey(
                                     mainCredential.masterPassword,
-                                        keyFileInputStream,
-                                        tempCipherKey,
-                                        progressTaskUpdater,
-                                        fixDuplicateUUID)
+                                    keyFileInputStream
+                                )
+                            }
+                        databaseKDB
                     },
                     { databaseInputStream ->
-                        DatabaseInputKDBX(cacheDirectory, isRAMSufficient)
-                                .openDatabase(databaseInputStream,
+                        val databaseKDBX = DatabaseKDBX().apply {
+                            binaryCache.cacheDirectory = cacheDirectory
+                            changeDuplicateId = fixDuplicateUUID
+                        }
+                        DatabaseInputKDBX(databaseKDBX).apply {
+                            setMethodToCheckIfRAMIsSufficient(isRAMSufficient)
+                            openDatabase(databaseInputStream,
+                                progressTaskUpdater) {
+                                databaseKDBX.retrieveMasterKey(
                                     mainCredential.masterPassword,
                                     keyFileInputStream,
-                                        tempCipherKey,
-                                        progressTaskUpdater,
-                                        fixDuplicateUUID)
+                                )
+                            }
+                        }
+                        databaseKDBX
                     }
             )
         } catch (e: FileNotFoundException) {
-            Log.e(TAG, "Unable to load keyfile", e)
-            throw FileNotFoundDatabaseException()
+            throw FileNotFoundDatabaseException("Unable to load the keyfile")
         } catch (e: LoadDatabaseException) {
             throw e
         } catch (e: Exception) {
             throw LoadDatabaseException(e)
         } finally {
             keyFileInputStream?.close()
+            dataModifiedSinceLastLoading = false
+        }
+    }
+
+    fun isMergeDataAllowed(): Boolean {
+        return mDatabaseKDBX != null
+    }
+
+    @Throws(LoadDatabaseException::class)
+    fun mergeData(databaseToMergeUri: Uri?,
+                  databaseToMergeMainCredential: MainCredential?,
+                  contentResolver: ContentResolver,
+                  isRAMSufficient: (memoryWanted: Long) -> Boolean,
+                  progressTaskUpdater: ProgressTaskUpdater?) {
+
+        mDatabaseKDB?.let {
+            throw IODatabaseException("Unable to merge from a database V1")
+        }
+
+        // New database instance to get new changes
+        val databaseToMerge = Database()
+        databaseToMerge.fileUri = databaseToMergeUri ?: this.fileUri
+
+        // Pass KeyFile Uri as InputStreams
+        var keyFileInputStream: InputStream? = null
+        try {
+            val databaseUri = databaseToMerge.fileUri
+            if (databaseUri != null) {
+                if (databaseToMergeMainCredential != null) {
+                    // Get keyFile inputStream
+                    databaseToMergeMainCredential.keyFileUri?.let { keyFile ->
+                        keyFileInputStream = UriUtil.getUriInputStream(contentResolver, keyFile)
+                    }
+                }
+
+                databaseToMerge.readDatabaseStream(contentResolver, databaseUri,
+                    { databaseInputStream ->
+                        val databaseToMergeKDB = DatabaseKDB()
+                        DatabaseInputKDB(databaseToMergeKDB)
+                            .openDatabase(databaseInputStream, progressTaskUpdater) {
+                                if (databaseToMergeMainCredential != null) {
+                                    databaseToMergeKDB.retrieveMasterKey(
+                                        databaseToMergeMainCredential.masterPassword,
+                                        keyFileInputStream,
+                                    )
+                                } else {
+                                    databaseToMergeKDB.masterKey = masterKey
+                                }
+                            }
+                        databaseToMergeKDB
+                    },
+                    { databaseInputStream ->
+                        val databaseToMergeKDBX = DatabaseKDBX()
+                        DatabaseInputKDBX(databaseToMergeKDBX).apply {
+                            setMethodToCheckIfRAMIsSufficient(isRAMSufficient)
+                            openDatabase(databaseInputStream, progressTaskUpdater) {
+                                if (databaseToMergeMainCredential != null) {
+                                    databaseToMergeKDBX.retrieveMasterKey(
+                                        databaseToMergeMainCredential.masterPassword,
+                                        keyFileInputStream,
+                                    )
+                                } else {
+                                    databaseToMergeKDBX.masterKey = masterKey
+                                }
+                            }
+                        }
+                        databaseToMergeKDBX
+                    }
+                )
+
+                mDatabaseKDBX?.let { currentDatabaseKDBX ->
+                    val databaseMerger = DatabaseKDBXMerger(currentDatabaseKDBX).apply {
+                        this.isRAMSufficient = isRAMSufficient
+                    }
+                    databaseToMerge.mDatabaseKDB?.let { databaseKDBToMerge ->
+                        databaseMerger.merge(databaseKDBToMerge)
+                        if (databaseToMergeUri != null) {
+                            this.dataModifiedSinceLastLoading = true
+                        }
+                    }
+                    databaseToMerge.mDatabaseKDBX?.let { databaseKDBXToMerge ->
+                        databaseMerger.merge(databaseKDBXToMerge)
+                        if (databaseToMergeUri != null) {
+                            this.dataModifiedSinceLastLoading = true
+                        }
+                    }
+                }
+            } else {
+                throw IODatabaseException("Database URI is null, database cannot be merged")
+            }
+        } catch (e: FileNotFoundException) {
+            throw FileNotFoundDatabaseException("Unable to load the keyfile")
+        } catch (e: LoadDatabaseException) {
+            throw e
+        } catch (e: Exception) {
+            throw LoadDatabaseException(e)
+        } finally {
+            keyFileInputStream?.close()
+            databaseToMerge.clearAndClose()
         }
     }
 
     @Throws(LoadDatabaseException::class)
     fun reloadData(contentResolver: ContentResolver,
-                   cacheDirectory: File,
                    isRAMSufficient: (memoryWanted: Long) -> Boolean,
-                   tempCipherKey: LoadedKey,
                    progressTaskUpdater: ProgressTaskUpdater?) {
 
         // Retrieve the stream from the old database URI
         try {
-            fileUri?.let { oldDatabaseUri ->
+            val oldDatabaseUri = fileUri
+            if (oldDatabaseUri != null) {
                 readDatabaseStream(contentResolver, oldDatabaseUri,
                     { databaseInputStream ->
-                            DatabaseInputKDB(cacheDirectory, isRAMSufficient)
-                                    .openDatabase(databaseInputStream,
-                                            masterKey,
-                                            tempCipherKey,
-                                            progressTaskUpdater)
+                        val databaseKDB = DatabaseKDB()
+                        mDatabaseKDB?.let {
+                            databaseKDB.binaryCache = it.binaryCache
+                        }
+                        DatabaseInputKDB(databaseKDB)
+                            .openDatabase(databaseInputStream, progressTaskUpdater) {
+                                databaseKDB.masterKey = masterKey
+                            }
+                        databaseKDB
                     },
                     { databaseInputStream ->
-                            DatabaseInputKDBX(cacheDirectory, isRAMSufficient)
-                                    .openDatabase(databaseInputStream,
-                                            masterKey,
-                                            tempCipherKey,
-                                            progressTaskUpdater)
+                        val databaseKDBX = DatabaseKDBX()
+                        mDatabaseKDBX?.let {
+                            databaseKDBX.binaryCache = it.binaryCache
+                        }
+                        DatabaseInputKDBX(databaseKDBX).apply {
+                            setMethodToCheckIfRAMIsSufficient(isRAMSufficient)
+                            openDatabase(databaseInputStream, progressTaskUpdater) {
+                                databaseKDBX.masterKey = masterKey
+                            }
+                        }
+                        databaseKDBX
                     }
                 )
-            } ?: run {
-                Log.e(TAG, "Database URI is null, database cannot be reloaded")
-                throw IODatabaseException()
+            } else {
+                throw IODatabaseException("Database URI is null, database cannot be reloaded")
             }
         } catch (e: FileNotFoundException) {
-            Log.e(TAG, "Unable to load keyfile", e)
-            throw FileNotFoundDatabaseException()
+            throw FileNotFoundDatabaseException("Unable to load the keyfile")
         } catch (e: LoadDatabaseException) {
             throw e
         } catch (e: Exception) {
             throw LoadDatabaseException(e)
+        } finally {
+            dataModifiedSinceLastLoading = false
         }
     }
 
-    fun isGroupSearchable(group: Group, omitBackup: Boolean): Boolean {
-        return mDatabaseKDB?.isGroupSearchable(group.groupKDB, omitBackup) ?:
-        mDatabaseKDBX?.isGroupSearchable(group.groupKDBX, omitBackup) ?:
-        false
+    fun groupIsInRecycleBin(group: Group): Boolean {
+        val groupKDB = group.groupKDB
+        val groupKDBX = group.groupKDBX
+        if (groupKDB != null) {
+            return mDatabaseKDB?.isInRecycleBin(groupKDB) ?: false
+        } else if (groupKDBX != null) {
+            return mDatabaseKDBX?.isInRecycleBin(groupKDBX) ?: false
+        }
+        return false
     }
 
-    fun createVirtualGroupFromSearch(searchQuery: String,
-                                     omitBackup: Boolean,
+    fun groupIsInTemplates(group: Group): Boolean {
+        val groupKDBX = group.groupKDBX
+        if (groupKDBX != null) {
+            return mDatabaseKDBX?.getTemplatesGroup() == groupKDBX
+        }
+        return false
+    }
+
+    fun createVirtualGroupFromSearch(searchParameters: SearchParameters,
+                                     fromGroup: NodeId<*>? = null,
                                      max: Int = Integer.MAX_VALUE): Group? {
         return mSearchHelper?.createVirtualGroupWithSearchResult(this,
-                SearchParameters().apply {
-                    this.searchQuery = searchQuery
-                }, omitBackup, max)
+            searchParameters, fromGroup, max)
     }
 
     fun createVirtualGroupFromSearchInfo(searchInfoString: String,
-                                         omitBackup: Boolean,
                                          max: Int = Integer.MAX_VALUE): Group? {
         return mSearchHelper?.createVirtualGroupWithSearchResult(this,
                 SearchParameters().apply {
                     searchQuery = searchInfoString
                     searchInTitles = true
-                    searchInUserNames = false
+                    searchInUsernames = false
                     searchInPasswords = false
                     searchInUrls = true
                     searchInNotes = true
@@ -676,13 +863,21 @@ class Database {
                     searchInOther = true
                     searchInUUIDs = false
                     searchInTags = false
+                    searchInCurrentGroup = false
+                    searchInSearchableGroup = true
+                    searchInRecycleBin = false
                     searchInTemplates = false
-                }, omitBackup, max)
+                }, null, max)
+    }
+
+    val tagPool: Tags
+        get() {
+            return mDatabaseKDBX?.tagPool ?: Tags()
         }
 
     val attachmentPool: AttachmentPool
         get() {
-            return mDatabaseKDB?.attachmentPool ?: mDatabaseKDBX?.attachmentPool ?: AttachmentPool(binaryCache)
+            return mDatabaseKDB?.attachmentPool ?: mDatabaseKDBX?.attachmentPool ?: AttachmentPool()
         }
 
     val allowMultipleAttachments: Boolean
@@ -695,8 +890,8 @@ class Database {
         }
 
     fun buildNewBinaryAttachment(): BinaryData? {
-        return mDatabaseKDB?.buildNewAttachment()
-                ?: mDatabaseKDBX?.buildNewAttachment( false,
+        return mDatabaseKDB?.buildNewBinaryAttachment()
+                ?: mDatabaseKDBX?.buildNewBinaryAttachment( false,
                         compressionForNewEntry(),
                         false)
     }
@@ -710,25 +905,16 @@ class Database {
     fun removeUnlinkedAttachments() {
         // No check in database KDB because unique attachment by entry
         mDatabaseKDBX?.removeUnlinkedAttachments(true)
+        dataModifiedSinceLastLoading = true
     }
 
     @Throws(DatabaseOutputException::class)
-    fun saveData(contentResolver: ContentResolver) {
+    fun saveData(databaseCopyUri: Uri?, contentResolver: ContentResolver) {
         try {
-            this.fileUri?.let {
-                saveData(contentResolver, it)
-            }
-        } catch (e: Exception) {
-            Log.e(TAG, "Unable to save database", e)
-            throw DatabaseOutputException(e)
-        }
-    }
-
-    @Throws(IOException::class, DatabaseOutputException::class)
-    private fun saveData(contentResolver: ContentResolver, uri: Uri) {
-
-        if (uri.scheme == "file") {
-            uri.path?.let { filename ->
+            val saveUri = databaseCopyUri ?: this.fileUri
+            if (saveUri != null) {
+                if (saveUri.scheme == "file") {
+                    saveUri.path?.let { filename ->
                         val tempFile = File("$filename.tmp")
 
                         var fileOutputStream: FileOutputStream? = null
@@ -757,10 +943,16 @@ class Database {
                 } else {
                     var outputStream: OutputStream? = null
                     try {
-                outputStream = contentResolver.openOutputStream(uri, "rwt")
+                        outputStream = contentResolver.openOutputStream(saveUri, "rwt")
                         outputStream?.let { definedOutputStream ->
-                    val databaseOutput = mDatabaseKDB?.let { DatabaseOutputKDB(it, definedOutputStream) }
-                                    ?: mDatabaseKDBX?.let { DatabaseOutputKDBX(it, definedOutputStream) }
+                            val databaseOutput =
+                                mDatabaseKDB?.let { DatabaseOutputKDB(it, definedOutputStream) }
+                                    ?: mDatabaseKDBX?.let {
+                                        DatabaseOutputKDBX(
+                                            it,
+                                            definedOutputStream
+                                        )
+                                    }
                             databaseOutput?.output()
                         }
                     } catch (e: Exception) {
@@ -769,17 +961,32 @@ class Database {
                         outputStream?.close()
                     }
                 }
-        this.fileUri = uri
+                if (databaseCopyUri == null) {
+                    this.dataModifiedSinceLastLoading = false
+                }
+            }
+        } catch (e: Exception) {
+            Log.e(TAG, "Unable to save database", e)
+            throw DatabaseOutputException(e)
+        }
     }
 
-    fun clear(filesDirectory: File? = null) {
-        binaryCache.clear()
-        iconsManager.clearCache()
+    fun clearIndexesAndBinaries(filesDirectory: File? = null) {
+        this.mDatabaseKDB?.clearIndexes()
+        this.mDatabaseKDBX?.clearIndexes()
+
+        this.mDatabaseKDB?.clearIconsCache()
+        this.mDatabaseKDBX?.clearIconsCache()
+
+        this.mDatabaseKDB?.clearAttachmentsCache()
+        this.mDatabaseKDBX?.clearAttachmentsCache()
+
+        this.mDatabaseKDB?.clearBinaries()
+        this.mDatabaseKDBX?.clearBinaries()
+
         iconDrawableFactory.clearCache()
-        // Delete the cache of the database if present
-        mDatabaseKDB?.clearCache()
-        mDatabaseKDBX?.clearCache()
-        // In all cases, delete all the files in the temp dir
+
+        // delete all the files in the temp dir if allowed
         try {
             filesDirectory?.let { directory ->
                 cleanDirectory(directory)
@@ -790,7 +997,7 @@ class Database {
     }
 
     fun clearAndClose(context: Context? = null) {
-        clear(context?.let { UriUtil.getBinaryDir(context) })
+        clearIndexesAndBinaries(context?.let { UriUtil.getBinaryDir(context) })
         this.mDatabaseKDB = null
         this.mDatabaseKDBX = null
         this.fileUri = null
@@ -817,9 +1024,10 @@ class Database {
     }
 
     @Throws(IOException::class)
-    fun retrieveMasterKey(key: String?, keyInputStream: InputStream?) {
+    fun assignMasterKey(key: String?, keyInputStream: InputStream?) {
         mDatabaseKDB?.retrieveMasterKey(key, keyInputStream)
         mDatabaseKDBX?.retrieveMasterKey(key, keyInputStream)
+        mDatabaseKDBX?.keyLastChanged = DateInstant()
     }
 
     fun rootCanContainsEntry(): Boolean {
@@ -827,6 +1035,7 @@ class Database {
     }
 
     fun createEntry(): Entry? {
+        dataModifiedSinceLastLoading = true
         mDatabaseKDB?.let { database ->
             return Entry(database.createEntry()).apply {
                 nodeId = database.newEntryId()
@@ -841,19 +1050,25 @@ class Database {
         return null
     }
 
-    fun createGroup(): Group? {
+    fun createGroup(virtual: Boolean = false): Group? {
+        if (!virtual) {
+            dataModifiedSinceLastLoading = true
+        }
+        var group: Group? = null
         mDatabaseKDB?.let { database ->
-            return Group(database.createGroup()).apply {
+            group = Group(database.createGroup()).apply {
                 setNodeId(database.newGroupId())
             }
         }
         mDatabaseKDBX?.let { database ->
-            return Group(database.createGroup()).apply {
+            group = Group(database.createGroup()).apply {
                 setNodeId(database.newGroupId())
             }
         }
+        if (virtual)
+            group?.isVirtual = virtual
 
-        return null
+        return group
     }
 
     fun getEntryById(id: NodeId<UUID>): Entry? {
@@ -879,6 +1094,7 @@ class Database {
     }
 
     fun addEntryTo(entry: Entry, parent: Group) {
+        dataModifiedSinceLastLoading = true
         entry.entryKDB?.let { entryKDB ->
             mDatabaseKDB?.addEntryTo(entryKDB, parent.groupKDB)
         }
@@ -889,6 +1105,7 @@ class Database {
     }
 
     fun updateEntry(entry: Entry) {
+        dataModifiedSinceLastLoading = true
         entry.entryKDB?.let { entryKDB ->
             mDatabaseKDB?.updateEntry(entryKDB)
         }
@@ -898,6 +1115,7 @@ class Database {
     }
 
     fun removeEntryFrom(entry: Entry, parent: Group) {
+        dataModifiedSinceLastLoading = true
         entry.entryKDB?.let { entryKDB ->
             mDatabaseKDB?.removeEntryFrom(entryKDB, parent.groupKDB)
         }
@@ -908,6 +1126,7 @@ class Database {
     }
 
     fun addGroupTo(group: Group, parent: Group) {
+        dataModifiedSinceLastLoading = true
         group.groupKDB?.let { groupKDB ->
             mDatabaseKDB?.addGroupTo(groupKDB, parent.groupKDB)
         }
@@ -918,6 +1137,7 @@ class Database {
     }
 
     fun updateGroup(group: Group) {
+        dataModifiedSinceLastLoading = true
         group.groupKDB?.let { entryKDB ->
             mDatabaseKDB?.updateGroup(entryKDB)
         }
@@ -927,6 +1147,7 @@ class Database {
     }
 
     fun removeGroupFrom(group: Group, parent: Group) {
+        dataModifiedSinceLastLoading = true
         group.groupKDB?.let { groupKDB ->
             mDatabaseKDB?.removeGroupFrom(groupKDB, parent.groupKDB)
         }
@@ -965,12 +1186,17 @@ class Database {
     }
 
     fun deleteEntry(entry: Entry) {
+        dataModifiedSinceLastLoading = true
+        entry.entryKDBX?.id?.let { entryId ->
+            mDatabaseKDBX?.addDeletedObject(entryId)
+        }
         entry.parent?.let {
             removeEntryFrom(entry, it)
         }
     }
 
     fun deleteGroup(group: Group) {
+        dataModifiedSinceLastLoading = true
         group.doForEachChildAndForIt(
                 object : NodeHandler<Entry>() {
                     override fun operate(node: Entry): Boolean {
@@ -980,6 +1206,9 @@ class Database {
                 },
                 object : NodeHandler<Group>() {
                     override fun operate(node: Group): Boolean {
+                        node.groupKDBX?.id?.let { groupId ->
+                            mDatabaseKDBX?.addDeletedObject(groupId)
+                        }
                         node.parent?.let {
                             removeGroupFrom(node, it)
                         }
@@ -988,24 +1217,6 @@ class Database {
                 })
     }
 
-    fun undoDeleteEntry(entry: Entry, parent: Group) {
-        entry.entryKDB?.let {
-            mDatabaseKDB?.undoDeleteEntryFrom(it, parent.groupKDB)
-        }
-        entry.entryKDBX?.let {
-            mDatabaseKDBX?.undoDeleteEntryFrom(it, parent.groupKDBX)
-        }
-    }
-
-    fun undoDeleteGroup(group: Group, parent: Group) {
-        group.groupKDB?.let {
-            mDatabaseKDB?.undoDeleteGroupFrom(it, parent.groupKDB)
-        }
-        group.groupKDBX?.let {
-            mDatabaseKDBX?.undoDeleteGroupFrom(it, parent.groupKDBX)
-        }
-    }
-
     fun ensureRecycleBinExists(resources: Resources) {
         mDatabaseKDB?.ensureBackupExists()
         mDatabaseKDBX?.ensureRecycleBinExists(resources)
@@ -1034,47 +1245,41 @@ class Database {
     }
 
     fun recycle(entry: Entry, resources: Resources) {
-        entry.entryKDB?.let {
-            mDatabaseKDB?.recycle(it)
+        ensureRecycleBinExists(resources)
+        entry.parent?.let { parent ->
+            removeEntryFrom(entry, parent)
         }
-        entry.entryKDBX?.let {
-            mDatabaseKDBX?.recycle(it, resources)
+        recycleBin?.let {
+            addEntryTo(entry, it)
         }
+        entry.afterAssignNewParent()
     }
 
     fun recycle(group: Group, resources: Resources) {
-        group.groupKDB?.let {
-            mDatabaseKDB?.recycle(it)
+        ensureRecycleBinExists(resources)
+        group.parent?.let { parent ->
+            removeGroupFrom(group, parent)
         }
-        group.groupKDBX?.let {
-            mDatabaseKDBX?.recycle(it, resources)
+        recycleBin?.let {
+            addGroupTo(group, it)
         }
+        group.afterAssignNewParent()
     }
 
     fun undoRecycle(entry: Entry, parent: Group) {
-        entry.entryKDB?.let { entryKDB ->
-            parent.groupKDB?.let { parentKDB ->
-                mDatabaseKDB?.undoRecycle(entryKDB, parentKDB)
-            }
-        }
-        entry.entryKDBX?.let { entryKDBX ->
-            parent.groupKDBX?.let { parentKDBX ->
-                mDatabaseKDBX?.undoRecycle(entryKDBX, parentKDBX)
-            }
+        recycleBin?.let { it ->
+            removeEntryFrom(entry, it)
         }
+        addEntryTo(entry, parent)
+        entry.afterAssignNewParent()
     }
 
     fun undoRecycle(group: Group, parent: Group) {
-        group.groupKDB?.let { groupKDB ->
-            parent.groupKDB?.let { parentKDB ->
-                mDatabaseKDB?.undoRecycle(groupKDB, parentKDB)
-            }
-        }
-        group.groupKDBX?.let { entryKDBX ->
-            parent.groupKDBX?.let { parentKDBX ->
-                mDatabaseKDBX?.undoRecycle(entryKDBX, parentKDBX)
-            }
+        recycleBin?.let {
+            removeGroupFrom(group, it)
         }
+        addGroupTo(group, parent)
+        group.afterAssignNewParent()
     }
 
     fun startManageEntry(entry: Entry?) {
@@ -1096,6 +1301,18 @@ class Database {
         return mDatabaseKDBX != null
     }
 
+    fun allowCustomSearchableGroup(): Boolean {
+        return mDatabaseKDBX != null
+    }
+
+    fun allowAutoType(): Boolean {
+        return mDatabaseKDBX != null
+    }
+
+    fun allowTags(): Boolean {
+        return mDatabaseKDBX != null
+    }
+
     /**
      * Remove oldest history for each entry if more than max items or max memory
      */

app/src/main/java/com/kunzisoft/keepass/database/element/DeletedObject.kt

@@ -28,29 +28,18 @@ import java.util.*
 class DeletedObject : Parcelable {
 
     var uuid: UUID = DatabaseVersioned.UUID_ZERO
-    private var mDeletionTime: DateInstant? = null
+    var deletionTime: DateInstant = DateInstant()
 
     constructor()
 
     constructor(uuid: UUID, deletionTime: DateInstant = DateInstant()) {
         this.uuid = uuid
-        this.mDeletionTime = deletionTime
+        this.deletionTime = deletionTime
     }
 
     constructor(parcel: Parcel) {
         uuid = parcel.readParcelable<ParcelUuid>(ParcelUuid::class.java.classLoader)?.uuid ?: DatabaseVersioned.UUID_ZERO
-        mDeletionTime = parcel.readParcelable(DateInstant::class.java.classLoader)
-    }
-
-    fun getDeletionTime(): DateInstant {
-        if (mDeletionTime == null) {
-            mDeletionTime = DateInstant(System.currentTimeMillis())
-        }
-        return mDeletionTime!!
-    }
-
-    fun setDeletionTime(deletionTime: DateInstant) {
-        this.mDeletionTime = deletionTime
+        deletionTime = parcel.readParcelable(DateInstant::class.java.classLoader) ?: deletionTime
     }
 
     override fun equals(other: Any?): Boolean {
@@ -69,7 +58,7 @@ class DeletedObject : Parcelable {
 
     override fun writeToParcel(parcel: Parcel, flags: Int) {
         parcel.writeParcelable(ParcelUuid(uuid), flags)
-        parcel.writeParcelable(mDeletionTime, flags)
+        parcel.writeParcelable(deletionTime, flags)
     }
 
     override fun describeContents(): Int {

app/src/main/java/com/kunzisoft/keepass/database/element/Entry.kt

@@ -19,11 +19,14 @@
  */
 package com.kunzisoft.keepass.database.element
 
+import android.graphics.Color
 import android.os.Parcel
 import android.os.Parcelable
+import com.kunzisoft.androidclearchroma.ChromaUtil
 import com.kunzisoft.keepass.database.element.binary.AttachmentPool
 import com.kunzisoft.keepass.database.element.database.DatabaseKDBX
 import com.kunzisoft.keepass.database.element.database.DatabaseVersioned
+import com.kunzisoft.keepass.database.element.entry.AutoType
 import com.kunzisoft.keepass.database.element.entry.EntryKDB
 import com.kunzisoft.keepass.database.element.entry.EntryKDBX
 import com.kunzisoft.keepass.database.element.entry.EntryVersionedInterface
@@ -238,6 +241,54 @@ class Entry : Node, EntryVersionedInterface<Group> {
             entryKDBX?.notes = value
         }
 
+    var backgroundColor: Int?
+        get() {
+            var colorInt: Int? = null
+            entryKDBX?.backgroundColor?.let {
+                try {
+                    colorInt = Color.parseColor(it)
+                } catch (e: Exception) {}
+            }
+            return colorInt
+        }
+        set(value) {
+            entryKDBX?.backgroundColor = if (value == null) {
+                ""
+            } else {
+                ChromaUtil.getFormattedColorString(value, false)
+            }
+        }
+
+    var foregroundColor: Int?
+        get() {
+            var colorInt: Int? = null
+            entryKDBX?.foregroundColor?.let {
+                try {
+                    colorInt = Color.parseColor(it)
+                } catch (e: Exception) {}
+            }
+            return colorInt
+        }
+        set(value) {
+            entryKDBX?.foregroundColor = if (value == null) {
+                ""
+            } else {
+                ChromaUtil.getFormattedColorString(value, false)
+            }
+        }
+
+    var customData: CustomData
+        get() = entryKDBX?.customData ?: CustomData()
+        set(value) {
+            entryKDBX?.customData = value
+        }
+
+    var autoType: AutoType
+        get() = entryKDBX?.autoType ?: AutoType()
+        set(value) {
+            entryKDBX?.autoType = value
+        }
+
     private fun isTan(): Boolean {
         return title == PMS_TAN_ENTRY && username.isNotEmpty()
     }
@@ -419,6 +470,11 @@ class Entry : Node, EntryVersionedInterface<Group> {
             entryInfo.expiryTime = expiryTime
             entryInfo.url = url
             entryInfo.notes = notes
+            entryInfo.tags = tags
+            entryInfo.backgroundColor = backgroundColor
+            entryInfo.foregroundColor = foregroundColor
+            entryInfo.customData = customData
+            entryInfo.autoType = autoType
             entryInfo.customFields = getExtraFields().toMutableList()
             // Add otpElement to generate token
             entryInfo.otpModel = getOtpElement()?.otpModel
@@ -453,6 +509,11 @@ class Entry : Node, EntryVersionedInterface<Group> {
         expiryTime = newEntryInfo.expiryTime
         url = newEntryInfo.url
         notes = newEntryInfo.notes
+        tags = newEntryInfo.tags
+        backgroundColor = newEntryInfo.backgroundColor
+        foregroundColor = newEntryInfo.foregroundColor
+        customData = newEntryInfo.customData
+        autoType = newEntryInfo.autoType
         addExtraFields(newEntryInfo.customFields)
         database?.attachmentPool?.let { binaryPool ->
             newEntryInfo.attachments.forEach { attachment ->

app/src/main/java/com/kunzisoft/keepass/database/element/Group.kt

@@ -262,6 +262,12 @@ class Group : Node, GroupVersionedInterface<Group, Entry> {
             }
         }
 
+    var customData: CustomData
+        get() = groupKDBX?.customData ?: CustomData()
+        set(value) {
+            groupKDBX?.customData = value
+        }
+
     override fun getChildGroups(): List<Group> {
         return groupKDB?.getChildGroups()?.map {
             Group(it)
@@ -308,8 +314,9 @@ class Group : Node, GroupVersionedInterface<Group, Entry> {
         val withoutMetaStream = filters.contains(ChildFilter.META_STREAM)
         val showExpiredEntries = !filters.contains(ChildFilter.EXPIRED)
 
+        // TODO Change KDB parser to remove meta entries
         return groupKDB?.getChildEntries()?.filter {
-            (!withoutMetaStream || (withoutMetaStream && !it.isMetaStream))
+            (!withoutMetaStream || (withoutMetaStream && !it.isMetaStream()))
                     && (!it.isCurrentlyExpires or showExpiredEntries)
         }?.map {
             Entry(it)
@@ -433,12 +440,35 @@ class Group : Node, GroupVersionedInterface<Group, Entry> {
         groupKDBX?.nodeId = id
     }
 
-    fun setEnableAutoType(enableAutoType: Boolean?) {
-        groupKDBX?.enableAutoType = enableAutoType
+    var searchable: Boolean?
+        get() = groupKDBX?.enableSearching
+        set(value) {
+            groupKDBX?.enableSearching = value
         }
 
-    fun setEnableSearching(enableSearching: Boolean?) {
-        groupKDBX?.enableSearching = enableSearching
+    fun isSearchable(): Boolean {
+        val searchableGroup = searchable
+        if (searchableGroup == null) {
+            val parenGroup = parent
+            if (parenGroup == null)
+                return true
+            else
+                return parenGroup.isSearchable()
+        } else {
+            return searchableGroup
+        }
+    }
+
+    var enableAutoType: Boolean?
+        get() = groupKDBX?.enableAutoType
+        set(value) {
+            groupKDBX?.enableAutoType = value
+        }
+
+    var defaultAutoTypeSequence: String
+        get() = groupKDBX?.defaultAutoTypeSequence ?: ""
+        set(value) {
+            groupKDBX?.defaultAutoTypeSequence = value
         }
 
     fun setExpanded(expanded: Boolean) {
@@ -453,6 +483,7 @@ class Group : Node, GroupVersionedInterface<Group, Entry> {
 
     fun getGroupInfo(): GroupInfo {
         val groupInfo = GroupInfo()
+        groupInfo.id = groupKDBX?.nodeId?.id
         groupInfo.title = title
         groupInfo.icon = icon
         groupInfo.creationTime = creationTime
@@ -460,6 +491,11 @@ class Group : Node, GroupVersionedInterface<Group, Entry> {
         groupInfo.expires = expires
         groupInfo.expiryTime = expiryTime
         groupInfo.notes = notes
+        groupInfo.searchable = searchable
+        groupInfo.enableAutoType = enableAutoType
+        groupInfo.defaultAutoTypeSequence = defaultAutoTypeSequence
+        groupInfo.tags = tags
+        groupInfo.customData = customData
         return groupInfo
     }
 
@@ -472,6 +508,11 @@ class Group : Node, GroupVersionedInterface<Group, Entry> {
         expires = groupInfo.expires
         expiryTime = groupInfo.expiryTime
         notes = groupInfo.notes
+        searchable = groupInfo.searchable
+        enableAutoType = groupInfo.enableAutoType
+        defaultAutoTypeSequence = groupInfo.defaultAutoTypeSequence
+        tags = groupInfo.tags
+        customData = groupInfo.customData
     }
 
     override fun equals(other: Any?): Boolean {

app/src/main/java/com/kunzisoft/keepass/database/element/Tags.kt

@@ -2,15 +2,19 @@ package com.kunzisoft.keepass.database.element
 
 import android.os.Parcel
 import android.os.Parcelable
+import com.kunzisoft.keepass.utils.StringUtil.removeSpaceChars
 
 class Tags: Parcelable {
 
-    private val mTags = ArrayList<String>()
+    private val mTags = mutableListOf<String>()
 
     constructor()
 
     constructor(values: String): this() {
-        mTags.addAll(values.split(';'))
+        mTags.addAll(values
+            .split(DELIMITER, DELIMITER1)
+            .filter { it.removeSpaceChars().isNotEmpty() }
+        )
     }
 
     constructor(parcel: Parcel) : this() {
@@ -25,15 +29,55 @@ class Tags: Parcelable {
         return 0
     }
 
+    fun setTags(tags: Tags) {
+        mTags.clear()
+        mTags.addAll(tags.mTags)
+    }
+
+    fun get(position: Int): String {
+        return mTags[position]
+    }
+
+    fun put(tag: String) {
+        if (tag.removeSpaceChars().isNotEmpty() && !mTags.contains(tag))
+            mTags.add(tag)
+    }
+
+    fun put(tags: Tags) {
+        tags.mTags.forEach {
+            put(it)
+        }
+    }
+
     fun isEmpty(): Boolean {
         return mTags.isEmpty()
     }
 
+    fun isNotEmpty(): Boolean {
+        return !isEmpty()
+    }
+
+    fun size(): Int {
+        return mTags.size
+    }
+
+    fun clear() {
+        mTags.clear()
+    }
+
+    fun toList(): List<String> {
+        return mTags
+    }
+
     override fun toString(): String {
-        return mTags.joinToString(";")
+        return mTags.joinToString(DELIMITER.toString())
     }
 
     companion object CREATOR : Parcelable.Creator<Tags> {
+        const val DELIMITER= ','
+        const val DELIMITER1= ';'
+        val DELIMITERS = listOf(',', ';')
+
         override fun createFromParcel(parcel: Parcel): Tags {
             return Tags(parcel)
         }

app/src/main/java/com/kunzisoft/keepass/database/element/binary/AttachmentPool.kt

@@ -19,7 +19,7 @@
  */
 package com.kunzisoft.keepass.database.element.binary
 
-class AttachmentPool(binaryCache: BinaryCache) : BinaryPool<Int>(binaryCache) {
+class AttachmentPool : BinaryPool<Int>() {
 
     /**
      * Utility method to find an unused key in the pool

app/src/main/java/com/kunzisoft/keepass/database/element/binary/BinaryPool.kt

@@ -23,7 +23,7 @@ import android.util.Log
 import java.io.IOException
 import kotlin.math.abs
 
-abstract class BinaryPool<T>(private val mBinaryCache: BinaryCache) {
+abstract class BinaryPool<T> {
 
     protected val pool = LinkedHashMap<T, BinaryData>()
 
@@ -225,9 +225,6 @@ abstract class BinaryPool<T>(private val mBinaryCache: BinaryCache) {
 
     @Throws(IOException::class)
     fun clear() {
-        doForEachBinary { _, binary ->
-            binary.clear(mBinaryCache)
-        }
         pool.clear()
     }
 

app/src/main/java/com/kunzisoft/keepass/database/element/binary/CustomIconPool.kt

@@ -4,19 +4,16 @@ import com.kunzisoft.keepass.database.element.DateInstant
 import com.kunzisoft.keepass.database.element.icon.IconImageCustom
 import java.util.*
 
-class CustomIconPool(private val binaryCache: BinaryCache) : BinaryPool<UUID>(binaryCache) {
+class CustomIconPool : BinaryPool<UUID>() {
 
     private val customIcons = HashMap<UUID, IconImageCustom>()
 
     fun put(key: UUID? = null,
             name: String,
             lastModificationTime: DateInstant?,
-            smallSize: Boolean,
+            builder: (uniqueBinaryId: String) -> BinaryData,
             result: (IconImageCustom, BinaryData?) -> Unit) {
-        val keyBinary = super.put(key) { uniqueBinaryId ->
-            // Create a byte array for better performance with small data
-            binaryCache.getBinaryData(uniqueBinaryId, smallSize)
-        }
+        val keyBinary = super.put(key, builder)
         val uuid = keyBinary.keys.first()
         val customIcon = IconImageCustom(uuid, name, lastModificationTime)
         customIcons[uuid] = customIcon

app/src/main/java/com/kunzisoft/keepass/database/element/database/DatabaseKDB.kt

@@ -34,23 +34,44 @@ import com.kunzisoft.keepass.database.element.node.NodeVersioned
 import java.io.IOException
 import java.io.InputStream
 import java.util.*
-import kotlin.collections.ArrayList
 
 class DatabaseKDB : DatabaseVersioned<Int, UUID, GroupKDB, EntryKDB>() {
 
-    private var kdfListV3: MutableList<KdfEngine> = ArrayList()
+    override var encryptionAlgorithm: EncryptionAlgorithm = EncryptionAlgorithm.AESRijndael
+
+    override val availableEncryptionAlgorithms: List<EncryptionAlgorithm> = listOf(
+        EncryptionAlgorithm.AESRijndael,
+        EncryptionAlgorithm.Twofish
+    )
+
+    override var kdfEngine: KdfEngine?
+        get() = kdfAvailableList[0]
+        set(value) {
+            value?.let {
+                numberKeyEncryptionRounds = value.defaultKeyRounds
+            }
+        }
+
+    override val kdfAvailableList: List<KdfEngine> = listOf(
+        KdfFactory.aesKdf
+    )
+
+    override val passwordEncoding: String
+        get() = "ISO-8859-1"
+
+    override var numberKeyEncryptionRounds = 300L
 
     override val version: String
         get() = "V1"
 
-    init {
-        kdfListV3.add(KdfFactory.aesKdf)
-    }
+    override val defaultFileExtension: String
+        get() = ".kdb"
 
-    private fun getGroupById(groupId: Int): GroupKDB? {
-        if (groupId == -1)
-            return null
-        return getGroupById(NodeIdInt(groupId))
+    init {
+        // New manual root because KDB contains multiple root groups (here available with getRootGroups())
+        rootGroup = createGroup().apply {
+            icon.standard = getStandardIcon(IconImageStandard.DATABASE_ID)
+        }
     }
 
     val backupGroup: GroupKDB?
@@ -63,33 +84,9 @@ class DatabaseKDB : DatabaseVersioned<Int, UUID, GroupKDB, EntryKDB>() {
             return listOf(BACKUP_FOLDER_TITLE)
         }
 
-    override val kdfEngine: KdfEngine
-        get() = kdfListV3[0]
+    var defaultUserName: String = ""
 
-    override val kdfAvailableList: List<KdfEngine>
-        get() = kdfListV3
-
-    override val availableEncryptionAlgorithms: List<EncryptionAlgorithm>
-        get() {
-            val list = ArrayList<EncryptionAlgorithm>()
-            list.add(EncryptionAlgorithm.AESRijndael)
-            list.add(EncryptionAlgorithm.Twofish)
-            return list
-        }
-
-    val rootGroups: List<GroupKDB>
-        get() {
-            return rootGroup?.getChildGroups() ?: ArrayList()
-        }
-
-    override val passwordEncoding: String
-        get() = "ISO-8859-1"
-
-    override var numberKeyEncryptionRounds = 300L
-
-    init {
-        algorithm = EncryptionAlgorithm.AESRijndael
-    }
+    var color: Int? = null
 
     /**
      * Generates an unused random tree id
@@ -215,29 +212,7 @@ class DatabaseKDB : DatabaseVersioned<Int, UUID, GroupKDB, EntryKDB>() {
         return true
     }
 
-    fun recycle(group: GroupKDB) {
-        removeGroupFrom(group, group.parent)
-        addGroupTo(group, backupGroup)
-        group.afterAssignNewParent()
-    }
-
-    fun recycle(entry: EntryKDB) {
-        removeEntryFrom(entry, entry.parent)
-        addEntryTo(entry, backupGroup)
-        entry.afterAssignNewParent()
-    }
-
-    fun undoRecycle(group: GroupKDB, origParent: GroupKDB) {
-        removeGroupFrom(group, backupGroup)
-        addGroupTo(group, origParent)
-    }
-
-    fun undoRecycle(entry: EntryKDB, origParent: GroupKDB) {
-        removeEntryFrom(entry, backupGroup)
-        addEntryTo(entry, origParent)
-    }
-
-    fun buildNewAttachment(): BinaryData {
+    fun buildNewBinaryAttachment(): BinaryData {
         // Generate an unique new file
         return attachmentPool.put { uniqueBinaryId ->
             binaryCache.getBinaryData(uniqueBinaryId, false)

app/src/main/java/com/kunzisoft/keepass/database/element/database/DatabaseKDBX.kt

@@ -25,16 +25,16 @@ import android.util.Log
 import com.kunzisoft.encrypt.HashManager
 import com.kunzisoft.keepass.R
 import com.kunzisoft.keepass.database.action.node.NodeHandler
-import com.kunzisoft.keepass.database.crypto.AesEngine
-import com.kunzisoft.keepass.database.crypto.CipherEngine
 import com.kunzisoft.keepass.database.crypto.EncryptionAlgorithm
 import com.kunzisoft.keepass.database.crypto.VariantDictionary
+import com.kunzisoft.keepass.database.crypto.kdf.AesKdf
 import com.kunzisoft.keepass.database.crypto.kdf.KdfEngine
 import com.kunzisoft.keepass.database.crypto.kdf.KdfFactory
 import com.kunzisoft.keepass.database.crypto.kdf.KdfParameters
 import com.kunzisoft.keepass.database.element.CustomData
 import com.kunzisoft.keepass.database.element.DateInstant
 import com.kunzisoft.keepass.database.element.DeletedObject
+import com.kunzisoft.keepass.database.element.Tags
 import com.kunzisoft.keepass.database.element.binary.BinaryData
 import com.kunzisoft.keepass.database.element.database.DatabaseKDB.Companion.BACKUP_FOLDER_TITLE
 import com.kunzisoft.keepass.database.element.entry.EntryKDBX
@@ -42,12 +42,13 @@ import com.kunzisoft.keepass.database.element.entry.FieldReferencesEngine
 import com.kunzisoft.keepass.database.element.group.GroupKDBX
 import com.kunzisoft.keepass.database.element.icon.IconImageCustom
 import com.kunzisoft.keepass.database.element.icon.IconImageStandard
+import com.kunzisoft.keepass.database.element.node.NodeId
 import com.kunzisoft.keepass.database.element.node.NodeIdUUID
+import com.kunzisoft.keepass.database.element.node.NodeKDBXInterface
 import com.kunzisoft.keepass.database.element.node.NodeVersioned
 import com.kunzisoft.keepass.database.element.security.MemoryProtectionConfig
 import com.kunzisoft.keepass.database.element.template.Template
 import com.kunzisoft.keepass.database.element.template.TemplateEngineCompatible
-import com.kunzisoft.keepass.database.exception.UnknownKDF
 import com.kunzisoft.keepass.database.file.DatabaseHeaderKDBX.Companion.FILE_VERSION_31
 import com.kunzisoft.keepass.database.file.DatabaseHeaderKDBX.Companion.FILE_VERSION_40
 import com.kunzisoft.keepass.database.file.DatabaseHeaderKDBX.Companion.FILE_VERSION_41
@@ -66,6 +67,7 @@ import javax.crypto.Mac
 import javax.xml.XMLConstants
 import javax.xml.parsers.DocumentBuilderFactory
 import javax.xml.parsers.ParserConfigurationException
+import kotlin.collections.HashSet
 import kotlin.math.min
 
 
@@ -73,27 +75,70 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
 
     var hmacKey: ByteArray? = null
         private set
-    var cipherUuid = EncryptionAlgorithm.AESRijndael.uuid
-    private var dataEngine: CipherEngine = AesEngine()
-    var compressionAlgorithm = CompressionAlgorithm.GZip
+
+    override var encryptionAlgorithm: EncryptionAlgorithm = EncryptionAlgorithm.AESRijndael
+
+    fun setEncryptionAlgorithmFromUUID(uuid: UUID) {
+        encryptionAlgorithm = EncryptionAlgorithm.getFrom(uuid)
+    }
+
+    override val availableEncryptionAlgorithms: List<EncryptionAlgorithm> = listOf(
+        EncryptionAlgorithm.AESRijndael,
+        EncryptionAlgorithm.Twofish,
+        EncryptionAlgorithm.ChaCha20
+    )
+
     var kdfParameters: KdfParameters? = null
-    private var kdfList: MutableList<KdfEngine> = ArrayList()
-    private var numKeyEncRounds: Long = 0
-    var publicCustomData = VariantDictionary()
+
+    override var kdfEngine: KdfEngine?
+        get() = getKdfEngineFromParameters(kdfParameters)
+        set(value) {
+            value?.let {
+                if (kdfParameters?.uuid != value.defaultParameters.uuid)
+                    kdfParameters = value.defaultParameters
+                numberKeyEncryptionRounds = value.defaultKeyRounds
+                memoryUsage = value.defaultMemoryUsage
+                parallelism = value.defaultParallelism
+            }
+        }
+
+    private fun getKdfEngineFromParameters(kdfParameters: KdfParameters?): KdfEngine? {
+        if (kdfParameters == null) {
+            return null
+        }
+        for (engine in kdfAvailableList) {
+            if (engine.uuid == kdfParameters.uuid) {
+                return engine
+            }
+        }
+        return null
+    }
+
+    fun randomizeKdfParameters() {
+        kdfParameters?.let {
+            kdfEngine?.randomize(it)
+        }
+    }
+
+    override val kdfAvailableList: List<KdfEngine> = listOf(
+        KdfFactory.aesKdf,
+        KdfFactory.argon2dKdf,
+        KdfFactory.argon2idKdf
+    )
+
+    var compressionAlgorithm = CompressionAlgorithm.GZip
+
     private val mFieldReferenceEngine = FieldReferencesEngine(this)
     private val mTemplateEngine = TemplateEngineCompatible(this)
 
     var kdbxVersion = UnsignedInt(0)
     var name = ""
     var nameChanged = DateInstant()
-    // TODO change setting date
-    var settingsChanged = DateInstant()
     var description = ""
     var descriptionChanged = DateInstant()
     var defaultUserName = ""
     var defaultUserNameChanged = DateInstant()
-
-    // TODO last change date
+    var settingsChanged = DateInstant()
     var keyLastChanged = DateInstant()
     var keyChangeRecDays: Long = -1
     var keyChangeForceDays: Long = 1
@@ -115,16 +160,13 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
     var lastSelectedGroupUUID = UUID_ZERO
     var lastTopVisibleGroupUUID = UUID_ZERO
     var memoryProtection = MemoryProtectionConfig()
-    val deletedObjects = ArrayList<DeletedObject>()
+    val deletedObjects = HashSet<DeletedObject>()
+    var publicCustomData = VariantDictionary()
     val customData = CustomData()
 
-    var localizedAppName = "KeePassDX"
+    val tagPool = Tags()
 
-    init {
-        kdfList.add(KdfFactory.aesKdf)
-        kdfList.add(KdfFactory.argon2dKdf)
-        kdfList.add(KdfFactory.argon2idKdf)
-    }
+    var localizedAppName = "KeePassDX"
 
     constructor()
 
@@ -159,38 +201,75 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
             return "V2 - KDBX$kdbxStringVersion"
         }
 
-    override val kdfEngine: KdfEngine?
-        get() = try {
-            getEngineKDBX4(kdfParameters)
-        } catch (unknownKDF: UnknownKDF) {
-            Log.i(TAG, "Unable to retrieve KDF engine", unknownKDF)
-            null
+    override val defaultFileExtension: String
+        get() = ".kdbx"
+
+    private open class NodeOperationHandler<T: NodeKDBXInterface> : NodeHandler<T>() {
+        var containsCustomData = false
+        override fun operate(node: T): Boolean {
+            if (node.customData.isNotEmpty()) {
+                containsCustomData = true
+            }
+            return true
+        }
     }
 
-    override val kdfAvailableList: List<KdfEngine>
-        get() = kdfList
-
-    @Throws(UnknownKDF::class)
-    fun getEngineKDBX4(kdfParameters: KdfParameters?): KdfEngine {
-        val unknownKDFException = UnknownKDF()
-        if (kdfParameters == null) {
-            throw unknownKDFException
+    private inner class EntryOperationHandler: NodeOperationHandler<EntryKDBX>() {
+        var passwordQualityEstimationDisabled = false
+        override fun operate(node: EntryKDBX): Boolean {
+            if (!node.qualityCheck) {
+                passwordQualityEstimationDisabled = true
             }
-        for (engine in kdfList) {
-            if (engine.uuid == kdfParameters.uuid) {
-                return engine
+            return super.operate(node)
         }
     }
-        throw unknownKDFException
-    }
 
-    val availableCompressionAlgorithms: List<CompressionAlgorithm>
-        get() {
-            val list = ArrayList<CompressionAlgorithm>()
-            list.add(CompressionAlgorithm.None)
-            list.add(CompressionAlgorithm.GZip)
-            return list
+    private inner class GroupOperationHandler: NodeOperationHandler<GroupKDBX>() {
+        var containsTags = false
+        override fun operate(node: GroupKDBX): Boolean {
+            if (node.tags.isNotEmpty())
+                containsTags = true
+            return super.operate(node)
         }
+    }
+
+    fun getMinKdbxVersion(): UnsignedInt {
+        val entryHandler = EntryOperationHandler()
+        val groupHandler = GroupOperationHandler()
+        rootGroup?.doForEachChildAndForIt(entryHandler, groupHandler)
+
+        // https://keepass.info/help/kb/kdbx_4.1.html
+        val containsGroupWithTag = groupHandler.containsTags
+        val containsEntryWithPasswordQualityEstimationDisabled = entryHandler.passwordQualityEstimationDisabled
+        val containsCustomIconWithNameOrLastModificationTime = iconsManager.containsCustomIconWithNameOrLastModificationTime()
+        val containsHeaderCustomDataWithLastModificationTime = customData.containsItemWithLastModificationTime()
+
+        // https://keepass.info/help/kb/kdbx_4.html
+        // If AES is not use, it's at least 4.0
+        val keyDerivationFunction = kdfEngine
+        val kdfIsNotAes = keyDerivationFunction != null && keyDerivationFunction.uuid != AesKdf.CIPHER_UUID
+        val containsHeaderCustomData = customData.isNotEmpty()
+        val containsNodeCustomData = entryHandler.containsCustomData || groupHandler.containsCustomData
+
+        // Check each condition to determine version
+        return if (containsGroupWithTag
+            || containsEntryWithPasswordQualityEstimationDisabled
+            || containsCustomIconWithNameOrLastModificationTime
+            || containsHeaderCustomDataWithLastModificationTime) {
+            FILE_VERSION_41
+        } else if (kdfIsNotAes
+            || containsHeaderCustomData
+            || containsNodeCustomData) {
+            FILE_VERSION_40
+        } else {
+            FILE_VERSION_31
+        }
+    }
+
+    val availableCompressionAlgorithms: List<CompressionAlgorithm> = listOf(
+        CompressionAlgorithm.None,
+        CompressionAlgorithm.GZip
+    )
 
     fun changeBinaryCompression(oldCompression: CompressionAlgorithm,
                                 newCompression: CompressionAlgorithm) {
@@ -245,18 +324,10 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
         }
     }
 
-    override val availableEncryptionAlgorithms: List<EncryptionAlgorithm>
-        get() {
-            val list = ArrayList<EncryptionAlgorithm>()
-            list.add(EncryptionAlgorithm.AESRijndael)
-            list.add(EncryptionAlgorithm.Twofish)
-            list.add(EncryptionAlgorithm.ChaCha20)
-            return list
-        }
-
     override var numberKeyEncryptionRounds: Long
         get() {
             val kdfEngine = kdfEngine
+            var numKeyEncRounds: Long = 0
             if (kdfEngine != null && kdfParameters != null)
                 numKeyEncRounds = kdfEngine.getKeyRounds(kdfParameters!!)
             return numKeyEncRounds
@@ -265,7 +336,6 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
             val kdfEngine = kdfEngine
             if (kdfEngine != null && kdfParameters != null)
                 kdfEngine.setKeyRounds(kdfParameters!!, rounds)
-            numKeyEncRounds = rounds
         }
 
     var memoryUsage: Long
@@ -305,7 +375,7 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
 
     // Retrieve recycle bin in index
     val recycleBin: GroupKDBX?
-        get() = if (recycleBinUUID == UUID_ZERO) null else getGroupByUUID(recycleBinUUID)
+        get() = getGroupByUUID(recycleBinUUID)
 
     val lastSelectedGroup: GroupKDBX?
         get() = getGroupByUUID(lastSelectedGroupUUID)
@@ -313,17 +383,14 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
     val lastTopVisibleGroup: GroupKDBX?
         get() = getGroupByUUID(lastTopVisibleGroupUUID)
 
-    fun setDataEngine(dataEngine: CipherEngine) {
-        this.dataEngine = dataEngine
-    }
-
     override fun getStandardIcon(iconId: Int): IconImageStandard {
         return this.iconsManager.getIcon(iconId)
     }
 
     fun buildNewCustomIcon(customIconId: UUID? = null,
                            result: (IconImageCustom, BinaryData?) -> Unit) {
-        iconsManager.buildNewCustomIcon(customIconId, result)
+        // Create a binary file for a brand new custom icon
+        addCustomIcon(customIconId, "", null, false, result)
     }
 
     fun addCustomIcon(customIconId: UUID? = null,
@@ -331,14 +398,21 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
                       lastModificationTime: DateInstant?,
                       smallSize: Boolean,
                       result: (IconImageCustom, BinaryData?) -> Unit) {
-        iconsManager.addCustomIcon(customIconId, name, lastModificationTime, smallSize, result)
+        iconsManager.addCustomIcon(customIconId, name, lastModificationTime, { uniqueBinaryId ->
+            // Create a byte array for better performance with small data
+            binaryCache.getBinaryData(uniqueBinaryId, smallSize)
+        }, result)
+    }
+
+    fun removeCustomIcon(iconUuid: UUID) {
+        iconsManager.removeCustomIcon(iconUuid, binaryCache)
     }
 
     fun isCustomIconBinaryDuplicate(binary: BinaryData): Boolean {
         return iconsManager.isCustomIconBinaryDuplicate(binary)
     }
 
-    fun getCustomIcon(iconUuid: UUID): IconImageCustom {
+    fun getCustomIcon(iconUuid: UUID): IconImageCustom? {
         return this.iconsManager.getIcon(iconUuid)
     }
 
@@ -355,7 +429,6 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
             val templatesGroup = firstGroupWithValidName
                 ?: mTemplateEngine.createNewTemplatesGroup(templatesGroupName)
             entryTemplatesGroup = templatesGroup.id
-            entryTemplatesGroupChanged = templatesGroup.lastModificationTime
         } else {
             removeTemplatesGroup()
         }
@@ -363,7 +436,6 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
 
     fun removeTemplatesGroup() {
         entryTemplatesGroup = UUID_ZERO
-        entryTemplatesGroupChanged = DateInstant()
         mTemplateEngine.clearCache()
     }
 
@@ -414,37 +486,37 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
     }
 
     fun getEntryByTitle(title: String, recursionLevel: Int): EntryKDBX? {
-        return this.entryIndexes.values.find { entry ->
+        return findEntry { entry ->
             entry.decodeTitleKey(recursionLevel).equals(title, true)
         }
     }
 
     fun getEntryByUsername(username: String, recursionLevel: Int): EntryKDBX? {
-        return this.entryIndexes.values.find { entry ->
+        return findEntry { entry ->
             entry.decodeUsernameKey(recursionLevel).equals(username, true)
         }
     }
 
     fun getEntryByURL(url: String, recursionLevel: Int): EntryKDBX? {
-        return this.entryIndexes.values.find { entry ->
+        return findEntry { entry ->
             entry.decodeUrlKey(recursionLevel).equals(url, true)
         }
     }
 
     fun getEntryByPassword(password: String, recursionLevel: Int): EntryKDBX? {
-        return this.entryIndexes.values.find { entry ->
+        return findEntry { entry ->
             entry.decodePasswordKey(recursionLevel).equals(password, true)
         }
     }
 
     fun getEntryByNotes(notes: String, recursionLevel: Int): EntryKDBX? {
-        return this.entryIndexes.values.find { entry ->
+        return findEntry { entry ->
             entry.decodeNotesKey(recursionLevel).equals(notes, true)
         }
     }
 
     fun getEntryByCustomData(customDataValue: String): EntryKDBX? {
-        return entryIndexes.values.find { entry ->
+        return findEntry { entry ->
             entry.customData.containsItemWithValue(customDataValue)
         }
     }
@@ -476,7 +548,8 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
     fun makeFinalKey(masterSeed: ByteArray) {
 
         kdfParameters?.let { keyDerivationFunctionParameters ->
-            val kdfEngine = getEngineKDBX4(keyDerivationFunctionParameters)
+            val kdfEngine = getKdfEngineFromParameters(keyDerivationFunctionParameters)
+                ?: throw IOException("Unknown key derivation function")
 
             var transformedMasterKey = kdfEngine.transform(masterKey, keyDerivationFunctionParameters)
             if (transformedMasterKey.size != 32) {
@@ -486,7 +559,7 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
             val cmpKey = ByteArray(65)
             System.arraycopy(masterSeed, 0, cmpKey, 0, 32)
             System.arraycopy(transformedMasterKey, 0, cmpKey, 32, 32)
-            finalKey = resizeKey(cmpKey, dataEngine.keyLength())
+            finalKey = resizeKey(cmpKey, encryptionAlgorithm.cipherEngine.keyLength())
 
             val messageDigest: MessageDigest
             try {
@@ -724,14 +797,13 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
                 firstGroupWithValidName
             }
             recycleBinUUID = recycleBinGroup.id
-            recycleBinChanged = recycleBinGroup.lastModificationTime
+            recycleBinChanged = DateInstant()
         }
     }
 
     fun removeRecycleBin() {
         if (recycleBin != null) {
             recycleBinUUID = UUID_ZERO
-            recycleBinChanged = DateInstant()
         }
     }
 
@@ -753,64 +825,41 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
         return false
     }
 
-    fun recycle(group: GroupKDBX, resources: Resources) {
-        ensureRecycleBinExists(resources)
-        removeGroupFrom(group, group.parent)
-        addGroupTo(group, recycleBin)
-        group.afterAssignNewParent()
-    }
-
-    fun recycle(entry: EntryKDBX, resources: Resources) {
-        ensureRecycleBinExists(resources)
-        removeEntryFrom(entry, entry.parent)
-        addEntryTo(entry, recycleBin)
-        entry.afterAssignNewParent()
-    }
-
-    fun undoRecycle(group: GroupKDBX, origParent: GroupKDBX) {
-        removeGroupFrom(group, recycleBin)
-        addGroupTo(group, origParent)
-    }
-
-    fun undoRecycle(entry: EntryKDBX, origParent: GroupKDBX) {
-        removeEntryFrom(entry, recycleBin)
-        addEntryTo(entry, origParent)
-    }
-
-    fun getDeletedObjects(): List<DeletedObject> {
-        return deletedObjects
+    fun getDeletedObject(nodeId: NodeId<UUID>): DeletedObject? {
+        return deletedObjects.find { it.uuid == nodeId.id }
     }
 
     fun addDeletedObject(deletedObject: DeletedObject) {
         this.deletedObjects.add(deletedObject)
     }
 
+    fun addDeletedObject(objectId: UUID) {
+        addDeletedObject(DeletedObject(objectId))
+    }
+
     override fun addEntryTo(newEntry: EntryKDBX, parent: GroupKDBX?) {
         super.addEntryTo(newEntry, parent)
+        tagPool.put(newEntry.tags)
         mFieldReferenceEngine.clear()
     }
 
     override fun updateEntry(entry: EntryKDBX) {
         super.updateEntry(entry)
+        tagPool.put(entry.tags)
         mFieldReferenceEngine.clear()
     }
 
     override fun removeEntryFrom(entryToRemove: EntryKDBX, parent: GroupKDBX?) {
         super.removeEntryFrom(entryToRemove, parent)
-        deletedObjects.add(DeletedObject(entryToRemove.id))
+        // Do not remove tags from pool, it's only in temp memory
         mFieldReferenceEngine.clear()
     }
 
-    override fun undoDeleteEntryFrom(entry: EntryKDBX, origParent: GroupKDBX?) {
-        super.undoDeleteEntryFrom(entry, origParent)
-        deletedObjects.remove(DeletedObject(entry.id))
-    }
-
     fun containsPublicCustomData(): Boolean {
         return publicCustomData.size() > 0
     }
 
-    fun buildNewAttachment(smallSize: Boolean,
+    fun buildNewBinaryAttachment(smallSize: Boolean,
                                  compression: Boolean,
                                  protection: Boolean,
                                  binaryPoolId: Int? = null): BinaryData {
@@ -830,6 +879,7 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
     }
 
     private fun removeUnlinkedAttachments(binaries: List<BinaryData>, clear: Boolean) {
+        // TODO check in icon pool
         // Build binaries to remove with all binaries known
         val binariesToRemove = ArrayList<BinaryData>()
         if (binaries.isEmpty()) {
@@ -866,11 +916,10 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
         return super.validatePasswordEncoding(password, containsKeyFile)
     }
 
-    override fun clearCache() {
+    override fun clearIndexes() {
         try {
-            super.clearCache()
+            super.clearIndexes()
             mFieldReferenceEngine.clear()
-            attachmentPool.clear()
         } catch (e: Exception) {
             Log.e(TAG, "Unable to clear cache", e)
         }

app/src/main/java/com/kunzisoft/keepass/database/element/database/DatabaseVersioned.kt

@@ -19,8 +19,10 @@
  */
 package com.kunzisoft.keepass.database.element.database
 
+import android.util.Log
 import com.kunzisoft.encrypt.HashManager
 import com.kunzisoft.keepass.database.crypto.EncryptionAlgorithm
+import com.kunzisoft.keepass.database.crypto.kdf.KdfEngine
 import com.kunzisoft.keepass.database.element.binary.AttachmentPool
 import com.kunzisoft.keepass.database.element.binary.BinaryCache
 import com.kunzisoft.keepass.database.element.entry.EntryVersioned
@@ -44,51 +46,43 @@ abstract class DatabaseVersioned<
         Entry : EntryVersioned<GroupId, EntryId, Group, Entry>
         > {
 
+
     // Algorithm used to encrypt the database
-    protected var algorithm: EncryptionAlgorithm? = null
+    abstract var encryptionAlgorithm: EncryptionAlgorithm
+    abstract val availableEncryptionAlgorithms: List<EncryptionAlgorithm>
 
-    abstract val kdfEngine: com.kunzisoft.keepass.database.crypto.kdf.KdfEngine?
+    abstract var kdfEngine: KdfEngine?
+    abstract val kdfAvailableList: List<KdfEngine>
+    abstract var numberKeyEncryptionRounds: Long
 
-    abstract val kdfAvailableList: List<com.kunzisoft.keepass.database.crypto.kdf.KdfEngine>
+    protected abstract val passwordEncoding: String
 
     var masterKey = ByteArray(32)
     var finalKey: ByteArray? = null
         protected set
 
+    abstract val version: String
+    abstract val defaultFileExtension: String
+
     /**
      * To manage binaries in faster way
      * Cipher key generated when the database is loaded, and destroyed when the database is closed
      * Can be used to temporarily store database elements
      */
     var binaryCache = BinaryCache()
-    val iconsManager = IconsManager(binaryCache)
-    var attachmentPool = AttachmentPool(binaryCache)
+    var iconsManager = IconsManager()
+    var attachmentPool = AttachmentPool()
 
     var changeDuplicateId = false
 
     private var groupIndexes = LinkedHashMap<NodeId<GroupId>, Group>()
-    protected var entryIndexes = LinkedHashMap<NodeId<EntryId>, Entry>()
-
-    abstract val version: String
-
-    protected abstract val passwordEncoding: String
-
-    abstract var numberKeyEncryptionRounds: Long
-
-    var encryptionAlgorithm: EncryptionAlgorithm
-        get() {
-            return algorithm ?: EncryptionAlgorithm.AESRijndael
-        }
-        set(algorithm) {
-            this.algorithm = algorithm
-        }
-
-    abstract val availableEncryptionAlgorithms: List<EncryptionAlgorithm>
+    private var entryIndexes = LinkedHashMap<NodeId<EntryId>, Entry>()
 
     var rootGroup: Group? = null
         set(value) {
             field = value
             value?.let {
+                removeGroupIndex(it)
                 addGroupIndex(it)
             }
         }
@@ -198,12 +192,6 @@ abstract class DatabaseVersioned<
      * -------------------------------------
      */
 
-    fun doForEachGroupInIndex(action: (Group) -> Unit) {
-        for (group in groupIndexes) {
-            action.invoke(group.value)
-        }
-    }
-
     /**
      * Determine if an id number is already in use
      *
@@ -219,14 +207,7 @@ abstract class DatabaseVersioned<
         return groupIndexes.values
     }
 
-    fun setGroupIndexes(groupList: List<Group>) {
-        this.groupIndexes.clear()
-        for (currentGroup in groupList) {
-            this.groupIndexes[currentGroup.nodeId] = currentGroup
-        }
-    }
-
-    fun getGroupById(id: NodeId<GroupId>): Group? {
+    open fun getGroupById(id: NodeId<GroupId>): Group? {
         return this.groupIndexes[id]
     }
 
@@ -250,16 +231,6 @@ abstract class DatabaseVersioned<
         this.groupIndexes.remove(group.nodeId)
     }
 
-    fun numberOfGroups(): Int {
-        return groupIndexes.size
-    }
-
-    fun doForEachEntryInIndex(action: (Entry) -> Unit) {
-        for (entry in entryIndexes) {
-            action.invoke(entry.value)
-        }
-    }
-
     fun isEntryIdUsed(id: NodeId<EntryId>): Boolean {
         return entryIndexes.containsKey(id)
     }
@@ -272,6 +243,10 @@ abstract class DatabaseVersioned<
         return this.entryIndexes[id]
     }
 
+    fun findEntry(predicate: (Entry) -> Boolean): Entry? {
+        return this.entryIndexes.values.find(predicate)
+    }
+
     fun addEntryIndex(entry: Entry) {
         val entryId = entry.nodeId
         if (entryIndexes.containsKey(entryId)) {
@@ -292,11 +267,7 @@ abstract class DatabaseVersioned<
         this.entryIndexes.remove(entry.nodeId)
     }
 
-    fun numberOfEntries(): Int {
-        return entryIndexes.size
-    }
-
-    open fun clearCache() {
+    open fun clearIndexes() {
         this.groupIndexes.clear()
         this.entryIndexes.clear()
     }
@@ -326,7 +297,7 @@ abstract class DatabaseVersioned<
         }
     }
 
-    fun removeGroupFrom(groupToRemove: Group, parent: Group?) {
+    open fun removeGroupFrom(groupToRemove: Group, parent: Group?) {
         // Remove tree from parent tree
         parent?.removeChildGroup(groupToRemove)
         removeGroupIndex(groupToRemove)
@@ -353,23 +324,39 @@ abstract class DatabaseVersioned<
         removeEntryIndex(entryToRemove)
     }
 
-    // TODO Delete group
-    fun undoDeleteGroupFrom(group: Group, origParent: Group?) {
-        addGroupTo(group, origParent)
-    }
-
-    open fun undoDeleteEntryFrom(entry: Entry, origParent: Group?) {
-        addEntryTo(entry, origParent)
-    }
-
     abstract fun isInRecycleBin(group: Group): Boolean
 
-    fun isGroupSearchable(group: Group?, omitBackup: Boolean): Boolean {
-        if (group == null)
-            return false
-        if (omitBackup && isInRecycleBin(group))
-            return false
-        return true
+    fun clearIconsCache() {
+        iconsManager.doForEachCustomIcon { _, binary ->
+            try {
+                binary.clear(binaryCache)
+            } catch (e: Exception) {
+                Log.e(TAG, "Unable to clear icon binary cache", e)
+            }
+        }
+        iconsManager.clear()
+    }
+
+    fun clearAttachmentsCache() {
+        attachmentPool.doForEachBinary { _, binary ->
+            try {
+                binary.clear(binaryCache)
+            } catch (e: Exception) {
+                Log.e(TAG, "Unable to clear attachment binary cache", e)
+            }
+        }
+        attachmentPool.clear()
+    }
+
+    fun clearBinaries() {
+        binaryCache.clear()
+    }
+
+    fun clearAll() {
+        clearIndexes()
+        clearIconsCache()
+        clearAttachmentsCache()
+        clearBinaries()
     }
 
     companion object {

app/src/main/java/com/kunzisoft/keepass/database/element/entry/EntryKDB.kt

@@ -25,6 +25,7 @@ import com.kunzisoft.keepass.database.element.Attachment
 import com.kunzisoft.keepass.database.element.binary.AttachmentPool
 import com.kunzisoft.keepass.database.element.binary.BinaryData
 import com.kunzisoft.keepass.database.element.group.GroupKDB
+import com.kunzisoft.keepass.database.element.icon.IconImageStandard
 import com.kunzisoft.keepass.database.element.icon.IconImageStandard.Companion.KEY_ID
 import com.kunzisoft.keepass.database.element.node.NodeId
 import com.kunzisoft.keepass.database.element.node.NodeIdUUID
@@ -60,8 +61,7 @@ class EntryKDB : EntryVersioned<Int, UUID, GroupKDB, EntryKDB>, NodeKDBInterface
     private var binaryDataId: Int? = null
 
     // Determine if this is a MetaStream entry
-    val isMetaStream: Boolean
-        get() {
+    fun isMetaStream(): Boolean {
         if (notes.isEmpty()) return false
         if (binaryDescription != PMS_ID_BINDESC) return false
         if (title.isEmpty()) return false
@@ -73,6 +73,32 @@ class EntryKDB : EntryVersioned<Int, UUID, GroupKDB, EntryKDB>, NodeKDBInterface
         return icon.standard.id == KEY_ID
     }
 
+    fun isMetaStreamDefaultUsername(): Boolean {
+        return isMetaStream() && notes == PMS_STREAM_DEFAULTUSER
+    }
+
+    private fun setMetaStream() {
+        binaryDescription = PMS_ID_BINDESC
+        title = PMS_ID_TITLE
+        username = PMS_ID_USER
+        url = PMS_ID_URL
+        icon.standard = IconImageStandard(KEY_ID)
+    }
+
+    fun setMetaStreamDefaultUsername() {
+        notes = PMS_STREAM_DEFAULTUSER
+        setMetaStream()
+    }
+
+    fun isMetaStreamDatabaseColor(): Boolean {
+        return isMetaStream() && notes == PMS_STREAM_DBCOLOR
+    }
+
+    fun setMetaStreamDatabaseColor() {
+        notes = PMS_STREAM_DBCOLOR
+        setMetaStream()
+    }
+
     override fun initNodeId(): NodeId<UUID> {
         return NodeIdUUID()
     }
@@ -113,8 +139,9 @@ class EntryKDB : EntryVersioned<Int, UUID, GroupKDB, EntryKDB>, NodeKDBInterface
         dest.writeInt(binaryDataId ?: -1)
     }
 
-    fun updateWith(source: EntryKDB) {
-        super.updateWith(source)
+    fun updateWith(source: EntryKDB,
+                   updateParents: Boolean = true) {
+        super.updateWith(source, updateParents)
         title = source.title
         username = source.username
         password = source.password
@@ -184,6 +211,13 @@ class EntryKDB : EntryVersioned<Int, UUID, GroupKDB, EntryKDB>, NodeKDBInterface
         private const val PMS_ID_USER = "SYSTEM"
         private const val PMS_ID_URL = "$"
 
+         const val PMS_STREAM_SIMPLESTATE = "Simple UI State"
+         const val PMS_STREAM_DEFAULTUSER = "Default User Name"
+         const val PMS_STREAM_SEARCHHISTORYITEM = "Search History Item"
+         const val PMS_STREAM_CUSTOMKVP = "Custom KVP"
+         const val PMS_STREAM_DBCOLOR = "Database Color"
+         const val PMS_STREAM_KPXICON2 = "KPX_CUSTOM_ICONS_2"
+
         @JvmField
         val CREATOR: Parcelable.Creator<EntryKDB> = object : Parcelable.Creator<EntryKDB> {
             override fun createFromParcel(parcel: Parcel): EntryKDB {

app/src/main/java/com/kunzisoft/keepass/database/element/entry/EntryKDBX.kt

@@ -110,8 +110,10 @@ class EntryKDBX : EntryVersioned<UUID, UUID, GroupKDBX, EntryKDBX>, NodeKDBXInte
      * Update with deep copy of each entry element
      * @param source
      */
-    fun updateWith(source: EntryKDBX, copyHistory: Boolean = true) {
-        super.updateWith(source)
+    fun updateWith(source: EntryKDBX,
+                   copyHistory: Boolean = true,
+                   updateParents: Boolean = true) {
+        super.updateWith(source, updateParents)
         usageCount = source.usageCount
         locationChanged = DateInstant(source.locationChanged)
         customData = CustomData(source.customData)

app/src/main/java/com/kunzisoft/keepass/database/element/group/GroupKDB.kt

@@ -53,8 +53,9 @@ class GroupKDB : GroupVersioned<Int, UUID, GroupKDB, EntryKDB>, NodeKDBInterface
         dest.writeInt(groupFlags)
     }
 
-    fun updateWith(source: GroupKDB) {
-        super.updateWith(source)
+    fun updateWith(source: GroupKDB,
+                   updateParents: Boolean = true) {
+        super.updateWith(source, updateParents)
         groupFlags = source.groupFlags
     }
 

app/src/main/java/com/kunzisoft/keepass/database/element/group/GroupKDBX.kt

@@ -41,9 +41,9 @@ class GroupKDBX : GroupVersioned<UUID, UUID, GroupKDBX, EntryKDBX>, NodeKDBXInte
     override var customData = CustomData()
     var notes = ""
     var isExpanded = true
-    var defaultAutoTypeSequence = ""
-    var enableAutoType: Boolean? = null
     var enableSearching: Boolean? = null
+    var enableAutoType: Boolean? = null
+    var defaultAutoTypeSequence: String = ""
     var lastTopVisibleEntry: UUID = DatabaseVersioned.UUID_ZERO
     override var tags = Tags()
     override var previousParentGroup: UUID = DatabaseVersioned.UUID_ZERO
@@ -69,11 +69,11 @@ class GroupKDBX : GroupVersioned<UUID, UUID, GroupKDBX, EntryKDBX>, NodeKDBXInte
         customData = parcel.readParcelable(CustomData::class.java.classLoader) ?: CustomData()
         notes = parcel.readString() ?: notes
         isExpanded = parcel.readByte().toInt() != 0
-        defaultAutoTypeSequence = parcel.readString() ?: defaultAutoTypeSequence
-        val isAutoTypeEnabled = parcel.readInt()
-        enableAutoType = if (isAutoTypeEnabled == -1) null else isAutoTypeEnabled == 1
         val isSearchingEnabled = parcel.readInt()
         enableSearching = if (isSearchingEnabled == -1) null else isSearchingEnabled == 1
+        val isAutoTypeEnabled = parcel.readInt()
+        enableAutoType = if (isAutoTypeEnabled == -1) null else isAutoTypeEnabled == 1
+        defaultAutoTypeSequence = parcel.readString() ?: defaultAutoTypeSequence
         lastTopVisibleEntry = parcel.readSerializable() as UUID
         tags = parcel.readParcelable(Tags::class.java.classLoader) ?: tags
         previousParentGroup = parcel.readParcelable<ParcelUuid>(ParcelUuid::class.java.classLoader)?.uuid ?: DatabaseVersioned.UUID_ZERO
@@ -94,25 +94,26 @@ class GroupKDBX : GroupVersioned<UUID, UUID, GroupKDBX, EntryKDBX>, NodeKDBXInte
         dest.writeParcelable(customData, flags)
         dest.writeString(notes)
         dest.writeByte((if (isExpanded) 1 else 0).toByte())
-        dest.writeString(defaultAutoTypeSequence)
-        dest.writeInt(if (enableAutoType == null) -1 else if (enableAutoType!!) 1 else 0)
         dest.writeInt(if (enableSearching == null) -1 else if (enableSearching!!) 1 else 0)
+        dest.writeInt(if (enableAutoType == null) -1 else if (enableAutoType!!) 1 else 0)
+        dest.writeString(defaultAutoTypeSequence)
         dest.writeSerializable(lastTopVisibleEntry)
         dest.writeParcelable(tags, flags)
         dest.writeParcelable(ParcelUuid(previousParentGroup), flags)
     }
 
-    fun updateWith(source: GroupKDBX) {
-        super.updateWith(source)
+    fun updateWith(source: GroupKDBX,
+                   updateParents: Boolean = true) {
+        super.updateWith(source, updateParents)
         usageCount = source.usageCount
         locationChanged = DateInstant(source.locationChanged)
         // Add all custom elements in map
         customData = CustomData(source.customData)
         notes = source.notes
         isExpanded = source.isExpanded
-        defaultAutoTypeSequence = source.defaultAutoTypeSequence
-        enableAutoType = source.enableAutoType
         enableSearching = source.enableSearching
+        enableAutoType = source.enableAutoType
+        defaultAutoTypeSequence = source.defaultAutoTypeSequence
         lastTopVisibleEntry = source.lastTopVisibleEntry
         tags = source.tags
         previousParentGroup = source.previousParentGroup

app/src/main/java/com/kunzisoft/keepass/database/element/group/GroupVersioned.kt

@@ -51,13 +51,16 @@ abstract class GroupVersioned
         dest.writeString(titleGroup)
     }
 
-    protected fun updateWith(source: GroupVersioned<GroupId, EntryId, Group, Entry>) {
-        super.updateWith(source)
+    protected fun updateWith(source: GroupVersioned<GroupId, EntryId, Group, Entry>,
+                             updateParents: Boolean = true) {
+        super.updateWith(source, updateParents)
         titleGroup = source.titleGroup
+        if (updateParents) {
             removeChildren()
             childGroups.addAll(source.childGroups)
             childEntries.addAll(source.childEntries)
         }
+    }
 
     override var title: String
         get() = titleGroup

app/src/main/java/com/kunzisoft/keepass/database/element/icon/IconImageStandard.kt

@@ -81,6 +81,7 @@ class IconImageStandard : IconImageDraw {
         const val CREDIT_CARD_ID = 37
         const val TRASH_ID = 43
         const val FOLDER_ID = 48
+        const val DATABASE_ID = 50
         const val LIST_ID = 57
         const val BUILD_ID = 59
         const val STAR_ID = 61

app/src/main/java/com/kunzisoft/keepass/database/element/icon/IconsManager.kt

@@ -28,12 +28,12 @@ import com.kunzisoft.keepass.database.element.icon.IconImageStandard.Companion.K
 import com.kunzisoft.keepass.icons.IconPack.Companion.NB_ICONS
 import java.util.*
 
-class IconsManager(binaryCache: BinaryCache) {
+class IconsManager {
 
     private val standardCache = List(NB_ICONS) {
         IconImageStandard(it)
     }
-    private val customCache = CustomIconPool(binaryCache)
+    private val customCache = CustomIconPool()
 
     fun getIcon(iconId: Int): IconImageStandard {
         val searchIconId = if (IconImageStandard.isCorrectIconId(iconId)) iconId else KEY_ID
@@ -50,29 +50,23 @@ class IconsManager(binaryCache: BinaryCache) {
      *  Custom
      */
 
-    fun buildNewCustomIcon(key: UUID? = null,
-                           result: (IconImageCustom, BinaryData?) -> Unit) {
-        // Create a binary file for a brand new custom icon
-        addCustomIcon(key, "", null, false, result)
-    }
-
     fun addCustomIcon(key: UUID? = null,
                       name: String,
                       lastModificationTime: DateInstant?,
-                      smallSize: Boolean,
+                      builder: (uniqueBinaryId: String) -> BinaryData,
                       result: (IconImageCustom, BinaryData?) -> Unit) {
-        customCache.put(key, name, lastModificationTime, smallSize, result)
+        customCache.put(key, name, lastModificationTime, builder, result)
     }
 
-    fun getIcon(iconUuid: UUID): IconImageCustom {
-        return customCache.getCustomIcon(iconUuid) ?: IconImageCustom(iconUuid)
+    fun getIcon(iconUuid: UUID): IconImageCustom? {
+        return customCache.getCustomIcon(iconUuid)
     }
 
     fun isCustomIconBinaryDuplicate(binaryData: BinaryData): Boolean {
         return customCache.isBinaryDuplicate(binaryData)
     }
 
-    fun removeCustomIcon(binaryCache: BinaryCache, iconUuid: UUID) {
+    fun removeCustomIcon(iconUuid: UUID, binaryCache: BinaryCache) {
         val binary = customCache[iconUuid]
         customCache.remove(iconUuid)
         try {
@@ -99,12 +93,8 @@ class IconsManager(binaryCache: BinaryCache) {
     /**
      * Clear the cache of icons
      */
-    fun clearCache() {
-        try {
+    fun clear() {
         customCache.clear()
-        } catch(e: Exception) {
-            Log.e(TAG, "Unable to clear cache", e)
-        }
     }
 
     companion object {

app/src/main/java/com/kunzisoft/keepass/database/element/node/Node.kt

@@ -32,6 +32,19 @@ interface Node: NodeVersionedInterface<Group> {
     fun removeParent() {
         parent = null
     }
+
+    fun getPathString(): String {
+        val pathNodes = mutableListOf<Node>()
+        var currentNode = this
+        pathNodes.add(0, currentNode)
+        while (currentNode.containsParent()) {
+            currentNode.parent?.let { parent ->
+                currentNode = parent
+                pathNodes.add(0, currentNode)
+            }
+        }
+        return pathNodes.joinToString("/") { it.title }
+    }
 }
 
 /**

app/src/main/java/com/kunzisoft/keepass/database/element/node/NodeId.kt

@@ -44,4 +44,6 @@ abstract class NodeId<Id> : Parcelable {
     override fun hashCode(): Int {
         return id?.hashCode() ?: 0
     }
+
+    abstract fun toVisualString(): String?
 }

app/src/main/java/com/kunzisoft/keepass/database/element/node/NodeIdInt.kt

@@ -63,6 +63,10 @@ class NodeIdInt : NodeId<Int> {
         return id.toString()
     }
 
+    override fun toVisualString(): String? {
+        return null
+    }
+
     companion object {
         @JvmField
         val CREATOR: Parcelable.Creator<NodeIdInt> = object : Parcelable.Creator<NodeIdInt> {

app/src/main/java/com/kunzisoft/keepass/database/element/node/NodeIdUUID.kt

@@ -64,6 +64,10 @@ class NodeIdUUID : NodeId<UUID> {
         return UuidUtil.toHexString(id) ?: id.toString()
     }
 
+    override fun toVisualString(): String {
+        return toString()
+    }
+
     companion object {
         @JvmField
         val CREATOR: Parcelable.Creator<NodeIdUUID> = object : Parcelable.Creator<NodeIdUUID> {

app/src/main/java/com/kunzisoft/keepass/database/element/node/NodeVersioned.kt

@@ -68,9 +68,12 @@ abstract class NodeVersioned<IdType, Parent : GroupVersionedInterface<Parent, En
         return 0
     }
 
-    protected fun updateWith(source: NodeVersioned<IdType, Parent, Entry>) {
+    protected fun updateWith(source: NodeVersioned<IdType, Parent, Entry>,
+                             updateParents: Boolean = true) {
         this.nodeId = copyNodeId(source.nodeId)
+        if (updateParents) {
             this.parent = source.parent
+        }
         this.icon = source.icon
         this.creationTime = DateInstant(source.creationTime)
         this.lastModificationTime = DateInstant(source.lastModificationTime)

app/src/main/java/com/kunzisoft/keepass/database/element/template/Template.kt

@@ -23,10 +23,8 @@ import android.os.ParcelUuid
 import android.os.Parcelable
 import com.kunzisoft.keepass.database.element.database.DatabaseVersioned
 import com.kunzisoft.keepass.database.element.icon.IconImage
-import com.kunzisoft.keepass.database.element.icon.IconImageStandard
 import java.util.*
 import kotlin.collections.ArrayList
-import kotlin.collections.LinkedHashMap
 
 class Template : Parcelable {
 
@@ -34,6 +32,8 @@ class Template : Parcelable {
     var uuid: UUID = DatabaseVersioned.UUID_ZERO
     var title = ""
     var icon = IconImage()
+    var backgroundColor: Int? = null
+    var foregroundColor: Int? = null
     var sections: MutableList<TemplateSection> = ArrayList()
         private set
 
@@ -41,7 +41,8 @@ class Template : Parcelable {
                 title: String,
                 icon: IconImage,
                 section: TemplateSection,
-                version: Int = 1): this(uuid, title, icon, ArrayList<TemplateSection>().apply {
+                version: Int = 1)
+            : this(uuid, title, icon, ArrayList<TemplateSection>().apply {
         add(section)
     }, version)
 
@@ -49,11 +50,22 @@ class Template : Parcelable {
                 title: String,
                 icon: IconImage,
                 sections: List<TemplateSection>,
+                version: Int = 1)
+            : this(uuid, title, icon, null, null, sections, version)
+
+    constructor(uuid: UUID,
+                title: String,
+                icon: IconImage,
+                backgroundColor: Int?,
+                foregroundColor: Int?,
+                sections: List<TemplateSection>,
                 version: Int = 1) {
         this.version = version
         this.uuid = uuid
         this.title = title
         this.icon = icon
+        this.backgroundColor = backgroundColor
+        this.foregroundColor = foregroundColor
         this.sections.clear()
         this.sections.addAll(sections)
     }
@@ -63,6 +75,8 @@ class Template : Parcelable {
         this.uuid = template.uuid
         this.title = template.title
         this.icon = template.icon
+        this.backgroundColor = template.backgroundColor
+        this.foregroundColor = template.foregroundColor
         this.sections.clear()
         this.sections.addAll(template.sections)
     }
@@ -72,6 +86,8 @@ class Template : Parcelable {
         uuid = parcel.readParcelable<ParcelUuid>(ParcelUuid::class.java.classLoader)?.uuid ?: uuid
         title = parcel.readString() ?: title
         icon = parcel.readParcelable(IconImage::class.java.classLoader) ?: icon
+        backgroundColor = parcel.readInt()
+        foregroundColor = parcel.readInt()
         parcel.readList(sections, TemplateSection::class.java.classLoader)
     }
 
@@ -80,6 +96,8 @@ class Template : Parcelable {
         parcel.writeParcelable(ParcelUuid(uuid), flags)
         parcel.writeString(title)
         parcel.writeParcelable(icon, flags)
+        parcel.writeInt(backgroundColor ?: -1)
+        parcel.writeInt(foregroundColor ?: -1)
         parcel.writeList(sections)
     }
 

app/src/main/java/com/kunzisoft/keepass/database/element/template/TemplateAttributeAction.kt

@@ -1,3 +1,21 @@
+/*
+ * Copyright 2021 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePassDX.
+ *
+ *  KeePassDX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePassDX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
+ */
 package com.kunzisoft.keepass.database.element.template
 
 enum class TemplateAttributeAction {

app/src/main/java/com/kunzisoft/keepass/database/element/template/TemplateAttributeOption.kt

@@ -1,3 +1,21 @@
+/*
+ * Copyright 2021 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePassDX.
+ *
+ *  KeePassDX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePassDX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
+ */
 package com.kunzisoft.keepass.database.element.template
 
 import android.os.Parcel

app/src/main/java/com/kunzisoft/keepass/database/element/template/TemplateBuilder.kt

@@ -1,9 +1,26 @@
+/*
+ * Copyright 2021 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePassDX.
+ *
+ *  KeePassDX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePassDX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
+ */
 package com.kunzisoft.keepass.database.element.template
 
 import com.kunzisoft.keepass.database.element.icon.IconImage
 import com.kunzisoft.keepass.database.element.icon.IconImageStandard
 import java.util.*
-import kotlin.collections.LinkedHashMap
 
 class TemplateBuilder {
 

app/src/main/java/com/kunzisoft/keepass/database/element/template/TemplateEngine.kt

@@ -1,6 +1,24 @@
 package com.kunzisoft.keepass.database.element.template
-
+/*
+ * Copyright 2021 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePassDX.
+ *
+ *  KeePassDX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePassDX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
+ */
 import android.content.res.Resources
+import android.graphics.Color
 import android.util.Log
 import com.kunzisoft.keepass.R
 import com.kunzisoft.keepass.database.element.Field
@@ -26,7 +44,7 @@ abstract class TemplateEngine(private val mDatabase: DatabaseKDBX) {
             if (templateGroup != null) {
                 templates.add(Template.STANDARD)
                 templateGroup.getChildEntries().forEach { templateEntry ->
-                    getTemplateFromTemplateEntry(templateEntry)?.let {
+                    getTemplateFromTemplateEntry(templateEntry).let {
                         mCacheTemplates[templateEntry.id] = it
                         templates.add(it)
                     }
@@ -70,7 +88,7 @@ abstract class TemplateEngine(private val mDatabase: DatabaseKDBX) {
                 return mCacheTemplates[uuid]
             else {
                 mDatabase.getEntryById(uuid)?.let { templateEntry ->
-                    getTemplateFromTemplateEntry(templateEntry)?.let { newTemplate ->
+                    getTemplateFromTemplateEntry(templateEntry).let { newTemplate ->
                         mCacheTemplates[uuid] = newTemplate
                         return newTemplate
                     }
@@ -134,7 +152,7 @@ abstract class TemplateEngine(private val mDatabase: DatabaseKDBX) {
         return TemplateSection(sectionAttributes)
     }
 
-    private fun getTemplateFromTemplateEntry(templateEntry: EntryKDBX): Template? {
+    private fun getTemplateFromTemplateEntry(templateEntry: EntryKDBX): Template {
 
         val templateEntryDecoded = decodeTemplateEntry(templateEntry)
         val templateSections = mutableListOf<TemplateSection>()
@@ -149,7 +167,28 @@ abstract class TemplateEngine(private val mDatabase: DatabaseKDBX) {
         }
         templateSections.add(buildTemplateSectionFromFields(sectionFields))
 
-        return Template(templateEntry.id, templateEntry.title, templateEntry.icon, templateSections, getVersion())
+        var backgroundColor: Int? = null
+        templateEntry.backgroundColor.let {
+            try {
+                backgroundColor = Color.parseColor(it)
+            } catch (e: Exception) {}
+        }
+        var foregroundColor: Int? = null
+        templateEntry.foregroundColor.let {
+            try {
+                foregroundColor = Color.parseColor(it)
+            } catch (e: Exception) {}
+        }
+
+        return Template(
+            templateEntry.id,
+            templateEntry.title,
+            templateEntry.icon,
+            backgroundColor,
+            foregroundColor,
+            templateSections,
+            getVersion()
+        )
     }
 
     companion object {

app/src/main/java/com/kunzisoft/keepass/database/element/template/TemplateEngineCompatible.kt

@@ -1,3 +1,21 @@
+/*
+ * Copyright 2021 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePassDX.
+ *
+ *  KeePassDX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePassDX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
+ */
 package com.kunzisoft.keepass.database.element.template
 
 import android.util.Log
@@ -257,6 +275,9 @@ class TemplateEngineCompatible(database: DatabaseKDBX): TemplateEngine(database)
                 entryCopy.putField(field)
             }
         }
+        // Add colors
+        entryCopy.foregroundColor = templateEntry.foregroundColor
+        entryCopy.backgroundColor = templateEntry.backgroundColor
 
         return entryCopy
     }
@@ -359,6 +380,9 @@ class TemplateEngineCompatible(database: DatabaseKDBX): TemplateEngine(database)
                 }
             }
         }
+        // Add colors
+        entryCopy.foregroundColor = templateEntry.foregroundColor
+        entryCopy.backgroundColor = templateEntry.backgroundColor
         return entryCopy
     }
 

app/src/main/java/com/kunzisoft/keepass/database/element/template/TemplateField.kt

@@ -1,3 +1,21 @@
+/*
+ * Copyright 2021 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePassDX.
+ *
+ *  KeePassDX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePassDX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
+ */
 package com.kunzisoft.keepass.database.element.template
 
 import android.content.Context
@@ -85,7 +103,7 @@ object TemplateField {
             LABEL_SSID.equals(name, true) -> context.getString(R.string.ssid)
             LABEL_TYPE.equals(name, true) -> context.getString(R.string.type)
             LABEL_CRYPTOCURRENCY.equals(name, true) -> context.getString(R.string.cryptocurrency)
-            LABEL_TOKEN.equals(name, true) -> context.getString(R.string.token)
+            LABEL_TOKEN.equals(name, false) -> context.getString(R.string.token)
             LABEL_PUBLIC_KEY.equals(name, true) -> context.getString(R.string.public_key)
             LABEL_PRIVATE_KEY.equals(name, true) -> context.getString(R.string.private_key)
             LABEL_SEED.equals(name, true) -> context.getString(R.string.seed)

app/src/main/java/com/kunzisoft/keepass/database/element/template/TemplateSection.kt

@@ -1,3 +1,21 @@
+/*
+ * Copyright 2021 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePassDX.
+ *
+ *  KeePassDX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePassDX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
+ */
 package com.kunzisoft.keepass.database.element.template
 
 import android.os.Parcel

app/src/main/java/com/kunzisoft/keepass/database/exception/DatabaseException.kt

@@ -46,6 +46,7 @@ open class LoadDatabaseException : DatabaseException {
     @StringRes
     override var errorId: Int = R.string.error_load_database
     constructor() : super()
+    constructor(string: String) : super(string)
     constructor(throwable: Throwable) : super(throwable)
 }
 
@@ -53,6 +54,7 @@ class FileNotFoundDatabaseException : LoadDatabaseException {
     @StringRes
     override var errorId: Int = R.string.file_not_found_content
     constructor() : super()
+    constructor(string: String) : super(string)
     constructor(exception: Throwable) : super(exception)
 }
 
@@ -76,6 +78,7 @@ class IODatabaseException : LoadDatabaseException {
     @StringRes
     override var errorId: Int = R.string.error_load_database
     constructor() : super()
+    constructor(string: String) : super(string)
     constructor(exception: Throwable) : super(exception)
 }
 

app/src/main/java/com/kunzisoft/keepass/database/file/DatabaseHeader.kt

@@ -19,8 +19,6 @@
  */
 package com.kunzisoft.keepass.database.file
 
-import com.kunzisoft.keepass.utils.UnsignedInt
-
 abstract class DatabaseHeader {
 
     /**
@@ -33,8 +31,4 @@ abstract class DatabaseHeader {
      */
     var encryptionIV = ByteArray(16)
 
-    companion object {
-        val PWM_DBSIG_1 = UnsignedInt(-0x655d26fd)
-    }
-
 }

app/src/main/java/com/kunzisoft/keepass/database/file/DatabaseHeaderKDB.kt

@@ -34,7 +34,7 @@ class DatabaseHeaderKDB : DatabaseHeader() {
      */
     var transformSeed = ByteArray(32)
 
-    var signature1 = UnsignedInt(0)                  // = PWM_DBSIG_1
+    var signature1 = UnsignedInt(0)                  // = DBSIG_1
     var signature2 = UnsignedInt(0)                  // = DBSIG_2
     var flags= UnsignedInt(0)
     var version= UnsignedInt(0)
@@ -84,9 +84,9 @@ class DatabaseHeaderKDB : DatabaseHeader() {
     companion object {
 
         // DB sig from KeePass 1.03
-        val DBSIG_2 = UnsignedInt(-0x4ab4049b)
-        // DB sig from KeePass 1.03
-        val DBVER_DW = UnsignedInt(0x00030003)
+        val DBSIG_1 = UnsignedInt(-0x655d26fd) // 0x9AA2D903
+        val DBSIG_2 = UnsignedInt(-0x4ab4049b) // 0xB54BFB65
+        val DBVER_DW = UnsignedInt(0x00030004)
 
         val FLAG_SHA2 = UnsignedInt(1)
         val FLAG_RIJNDAEL = UnsignedInt(2)
@@ -97,7 +97,7 @@ class DatabaseHeaderKDB : DatabaseHeader() {
         const val BUF_SIZE = 124
 
         fun matchesHeader(sig1: UnsignedInt, sig2: UnsignedInt): Boolean {
-            return sig1.toKotlinInt() == PWM_DBSIG_1.toKotlinInt() && sig2.toKotlinInt() == DBSIG_2.toKotlinInt()
+            return sig1.toKotlinInt() == DBSIG_1.toKotlinInt() && sig2.toKotlinInt() == DBSIG_2.toKotlinInt()
         }
 
         fun compatibleHeaders(one: UnsignedInt, two: UnsignedInt): Boolean {

app/src/main/java/com/kunzisoft/keepass/database/file/DatabaseHeaderKDBX.kt

@@ -20,7 +20,6 @@
 package com.kunzisoft.keepass.database.file
 
 import com.kunzisoft.encrypt.HashManager
-import com.kunzisoft.keepass.database.action.node.NodeHandler
 import com.kunzisoft.keepass.database.crypto.CrsAlgorithm
 import com.kunzisoft.keepass.database.crypto.VariantDictionary
 import com.kunzisoft.keepass.database.crypto.kdf.AesKdf
@@ -28,9 +27,6 @@ import com.kunzisoft.keepass.database.crypto.kdf.KdfFactory
 import com.kunzisoft.keepass.database.crypto.kdf.KdfParameters
 import com.kunzisoft.keepass.database.element.database.CompressionAlgorithm
 import com.kunzisoft.keepass.database.element.database.DatabaseKDBX
-import com.kunzisoft.keepass.database.element.entry.EntryKDBX
-import com.kunzisoft.keepass.database.element.group.GroupKDBX
-import com.kunzisoft.keepass.database.element.node.NodeKDBXInterface
 import com.kunzisoft.keepass.database.exception.VersionDatabaseException
 import com.kunzisoft.keepass.stream.CopyInputStream
 import com.kunzisoft.keepass.utils.*
@@ -87,71 +83,10 @@ class DatabaseHeaderKDBX(private val databaseV4: DatabaseKDBX) : DatabaseHeader(
     inner class HeaderAndHash(var header: ByteArray, var hash: ByteArray)
 
     init {
-        this.version = getMinKdbxVersion(databaseV4) // Only for writing
+        this.version = databaseV4.getMinKdbxVersion()
         this.masterSeed = ByteArray(32)
     }
 
-    private open class NodeOperationHandler<T: NodeKDBXInterface> : NodeHandler<T>() {
-        var containsCustomData = false
-        override fun operate(node: T): Boolean {
-            if (node.customData.isNotEmpty()) {
-                containsCustomData = true
-            }
-            return true
-        }
-    }
-
-    private inner class EntryOperationHandler: NodeOperationHandler<EntryKDBX>() {
-        var passwordQualityEstimationDisabled = false
-        override fun operate(node: EntryKDBX): Boolean {
-            if (!node.qualityCheck) {
-                passwordQualityEstimationDisabled = true
-            }
-            return super.operate(node)
-        }
-    }
-
-    private inner class GroupOperationHandler: NodeOperationHandler<GroupKDBX>() {
-        var containsTags = false
-        override fun operate(node: GroupKDBX): Boolean {
-            if (!node.tags.isEmpty())
-                containsTags = true
-            return super.operate(node)
-        }
-    }
-
-    private fun getMinKdbxVersion(databaseKDBX: DatabaseKDBX): UnsignedInt {
-        val entryHandler = EntryOperationHandler()
-        val groupHandler = GroupOperationHandler()
-        databaseKDBX.rootGroup?.doForEachChildAndForIt(entryHandler, groupHandler)
-
-        // https://keepass.info/help/kb/kdbx_4.1.html
-        val containsGroupWithTag = groupHandler.containsTags
-        val containsEntryWithPasswordQualityEstimationDisabled = entryHandler.passwordQualityEstimationDisabled
-        val containsCustomIconWithNameOrLastModificationTime = databaseKDBX.iconsManager.containsCustomIconWithNameOrLastModificationTime()
-        val containsHeaderCustomDataWithLastModificationTime = databaseKDBX.customData.containsItemWithLastModificationTime()
-
-        // https://keepass.info/help/kb/kdbx_4.html
-        // If AES is not use, it's at least 4.0
-        val kdfIsNotAes = databaseKDBX.kdfParameters?.uuid != AesKdf.CIPHER_UUID
-        val containsHeaderCustomData = databaseKDBX.customData.isNotEmpty()
-        val containsNodeCustomData = entryHandler.containsCustomData || groupHandler.containsCustomData
-
-        // Check each condition to determine version
-        return if (containsGroupWithTag
-                || containsEntryWithPasswordQualityEstimationDisabled
-                || containsCustomIconWithNameOrLastModificationTime
-                || containsHeaderCustomDataWithLastModificationTime) {
-            FILE_VERSION_41
-        } else if (kdfIsNotAes
-                || containsHeaderCustomData
-                || containsNodeCustomData) {
-            FILE_VERSION_40
-        } else {
-            FILE_VERSION_31
-        }
-    }
-
     /** Assumes the input stream is at the beginning of the .kdbx file
      * @param inputStream
      * @throws IOException
@@ -256,8 +191,7 @@ class DatabaseHeaderKDBX(private val databaseV4: DatabaseKDBX) : DatabaseHeader(
         if (pbId == null || pbId.size != 16) {
             throw IOException("Invalid cipher ID.")
         }
-
-        databaseV4.cipherUuid = bytes16ToUuid(pbId)
+        databaseV4.setEncryptionAlgorithmFromUUID(bytes16ToUuid(pbId))
     }
 
     private fun setTransformRound(roundsByte: ByteArray) {
@@ -311,8 +245,9 @@ class DatabaseHeaderKDBX(private val databaseV4: DatabaseKDBX) : DatabaseHeader(
 
     companion object {
 
-        val DBSIG_PRE2 = UnsignedInt(-0x4ab4049a)
-        val DBSIG_2 = UnsignedInt(-0x4ab40499)
+        val DBSIG_1 = UnsignedInt(-0x655d26fd) // 0x9AA2D903
+        val DBSIG_PRE2 = UnsignedInt(-0x4ab4049a) // 0xB54BFB66
+        val DBSIG_2 = UnsignedInt(-0x4ab40499) // 0xB54BFB67
 
         private val FILE_VERSION_CRITICAL_MASK = UnsignedInt(-0x10000)
         val FILE_VERSION_31 = UnsignedInt(0x00030001)
@@ -335,7 +270,7 @@ class DatabaseHeaderKDBX(private val databaseV4: DatabaseKDBX) : DatabaseHeader(
         }
 
         fun matchesHeader(sig1: UnsignedInt, sig2: UnsignedInt): Boolean {
-            return sig1 == PWM_DBSIG_1 && (sig2 == DBSIG_PRE2 || sig2 == DBSIG_2)
+            return sig1 == DBSIG_1 && (sig2 == DBSIG_PRE2 || sig2 == DBSIG_2)
         }
     }
 }

app/src/main/java/com/kunzisoft/keepass/database/file/input/DatabaseInput.kt

@@ -21,16 +21,12 @@ package com.kunzisoft.keepass.database.file.input
 
 import android.util.Log
 import com.kunzisoft.keepass.R
-import com.kunzisoft.keepass.database.element.binary.LoadedKey
 import com.kunzisoft.keepass.database.element.database.DatabaseVersioned
 import com.kunzisoft.keepass.database.exception.LoadDatabaseException
 import com.kunzisoft.keepass.tasks.ProgressTaskUpdater
-import java.io.File
 import java.io.InputStream
 
-abstract class DatabaseInput<D : DatabaseVersioned<*, *, *, *>>
-    (protected val cacheDirectory: File,
-     protected val isRAMSufficient: (memoryWanted: Long) -> Boolean) {
+abstract class DatabaseInput<D : DatabaseVersioned<*, *, *, *>> (protected var mDatabase: D) {
 
     private var startTimeKey = System.currentTimeMillis()
     private var startTimeContent = System.currentTimeMillis()
@@ -47,19 +43,8 @@ abstract class DatabaseInput<D : DatabaseVersioned<*, *, *, *>>
 
     @Throws(LoadDatabaseException::class)
     abstract fun openDatabase(databaseInputStream: InputStream,
-                              password: String?,
-                              keyfileInputStream: InputStream?,
-                              loadedCipherKey: LoadedKey,
                               progressTaskUpdater: ProgressTaskUpdater?,
-                              fixDuplicateUUID: Boolean = false): D
-
-
-    @Throws(LoadDatabaseException::class)
-    abstract fun openDatabase(databaseInputStream: InputStream,
-                              masterKey: ByteArray,
-                              loadedCipherKey: LoadedKey,
-                              progressTaskUpdater: ProgressTaskUpdater?,
-                              fixDuplicateUUID: Boolean = false): D
+                              assignMasterKey: (() -> Unit)): D
 
     protected fun startKeyTimer(progressTaskUpdater: ProgressTaskUpdater?) {
         progressTaskUpdater?.updateMessage(R.string.retrieving_db_key)

app/src/main/java/com/kunzisoft/keepass/database/file/input/DatabaseInputKDB.kt

@@ -20,17 +20,16 @@
 
 package com.kunzisoft.keepass.database.file.input
 
+import android.graphics.Color
 import com.kunzisoft.encrypt.HashManager
 import com.kunzisoft.keepass.database.crypto.EncryptionAlgorithm
 import com.kunzisoft.keepass.database.element.DateInstant
-import com.kunzisoft.keepass.database.element.binary.LoadedKey
 import com.kunzisoft.keepass.database.element.database.DatabaseKDB
 import com.kunzisoft.keepass.database.element.entry.EntryKDB
 import com.kunzisoft.keepass.database.element.group.GroupKDB
 import com.kunzisoft.keepass.database.element.node.NodeIdInt
 import com.kunzisoft.keepass.database.element.node.NodeIdUUID
 import com.kunzisoft.keepass.database.exception.*
-import com.kunzisoft.keepass.database.file.DatabaseHeader
 import com.kunzisoft.keepass.database.file.DatabaseHeaderKDB
 import com.kunzisoft.keepass.tasks.ProgressTaskUpdater
 import com.kunzisoft.keepass.utils.*
@@ -40,48 +39,18 @@ import java.security.MessageDigest
 import java.util.*
 import javax.crypto.Cipher
 import javax.crypto.CipherInputStream
-import kotlin.collections.HashMap
 
 
 /**
  * Load a KDB database file.
  */
-class DatabaseInputKDB(cacheDirectory: File,
-                       isRAMSufficient: (memoryWanted: Long) -> Boolean)
-    : DatabaseInput<DatabaseKDB>(cacheDirectory, isRAMSufficient) {
-
-    private lateinit var mDatabase: DatabaseKDB
+class DatabaseInputKDB(database: DatabaseKDB)
+    : DatabaseInput<DatabaseKDB>(database) {
 
     @Throws(LoadDatabaseException::class)
     override fun openDatabase(databaseInputStream: InputStream,
-                              password: String?,
-                              keyfileInputStream: InputStream?,
-                              loadedCipherKey: LoadedKey,
                               progressTaskUpdater: ProgressTaskUpdater?,
-                              fixDuplicateUUID: Boolean): DatabaseKDB {
-        return openDatabase(databaseInputStream, progressTaskUpdater, fixDuplicateUUID) {
-            mDatabase.binaryCache.loadedCipherKey = loadedCipherKey
-            mDatabase.retrieveMasterKey(password, keyfileInputStream)
-        }
-    }
-
-    @Throws(LoadDatabaseException::class)
-    override fun openDatabase(databaseInputStream: InputStream,
-                              masterKey: ByteArray,
-                              loadedCipherKey: LoadedKey,
-                              progressTaskUpdater: ProgressTaskUpdater?,
-                              fixDuplicateUUID: Boolean): DatabaseKDB {
-        return openDatabase(databaseInputStream, progressTaskUpdater, fixDuplicateUUID) {
-            mDatabase.binaryCache.loadedCipherKey = loadedCipherKey
-            mDatabase.masterKey = masterKey
-        }
-    }
-
-    @Throws(LoadDatabaseException::class)
-    private fun openDatabase(databaseInputStream: InputStream,
-                             progressTaskUpdater: ProgressTaskUpdater?,
-                             fixDuplicateUUID: Boolean,
-                             assignMasterKey: (() -> Unit)? = null): DatabaseKDB {
+                              assignMasterKey: (() -> Unit)): DatabaseKDB {
 
         try {
             startKeyTimer(progressTaskUpdater)
@@ -98,7 +67,7 @@ class DatabaseInputKDB(cacheDirectory: File,
             if (fileSize != (contentSize + DatabaseHeaderKDB.BUF_SIZE))
                 throw IOException("Header corrupted")
 
-            if (header.signature1 != DatabaseHeader.PWM_DBSIG_1
+            if (header.signature1 != DatabaseHeaderKDB.DBSIG_1
                     || header.signature2 != DatabaseHeaderKDB.DBSIG_2) {
                 throw SignatureDatabaseException()
             }
@@ -107,11 +76,7 @@ class DatabaseInputKDB(cacheDirectory: File,
                 throw VersionDatabaseException()
             }
 
-            mDatabase = DatabaseKDB()
-            mDatabase.binaryCache.cacheDirectory = cacheDirectory
-
-            mDatabase.changeDuplicateId = fixDuplicateUUID
-            assignMasterKey?.invoke()
+            assignMasterKey.invoke()
 
             // Select algorithm
             when {
@@ -153,10 +118,6 @@ class DatabaseInputKDB(cacheDirectory: File,
                     )
             )
 
-            // New manual root because KDB contains multiple root groups (here available with getRootGroups())
-            val newRoot = mDatabase.createGroup()
-            mDatabase.rootGroup = newRoot
-
             // Import all nodes
             val groupLevelList = HashMap<GroupKDB, Int>()
             var newGroup: GroupKDB? = null
@@ -285,7 +246,7 @@ class DatabaseInputKDB(cacheDirectory: File,
                     0x000E -> {
                         newEntry?.let { entry ->
                             if (fieldSize > 0) {
-                                val binaryData = mDatabase.buildNewAttachment()
+                                val binaryData = mDatabase.buildNewBinaryAttachment()
                                 entry.putBinary(binaryData, mDatabase.attachmentPool)
                                 BufferedOutputStream(binaryData.getOutputDataStream(mDatabase.binaryCache)).use { outputStream ->
                                     cipherInputStream.readBytes(fieldSize) { buffer ->
@@ -303,7 +264,34 @@ class DatabaseInputKDB(cacheDirectory: File,
                             newGroup = null
                         }
                         newEntry?.let { entry ->
+                            // Parse meta info
+                            when {
+                                entry.isMetaStreamDefaultUsername() -> {
+                                    var defaultUser = ""
+                                    entry.getBinary(mDatabase.attachmentPool)
+                                        ?.getInputDataStream(mDatabase.binaryCache)?.use {
+                                            defaultUser = String(it.readBytes())
+                                        }
+                                    mDatabase.defaultUserName = defaultUser
+                                }
+                                entry.isMetaStreamDatabaseColor() -> {
+                                    var color: Int? = null
+                                    entry.getBinary(mDatabase.attachmentPool)
+                                        ?.getInputDataStream(mDatabase.binaryCache)?.use {
+                                            val reverseColor = UnsignedInt(it.readBytes4ToUInt()).toKotlinInt()
+                                            color = Color.rgb(
+                                                Color.blue(reverseColor),
+                                                Color.green(reverseColor),
+                                                Color.red(reverseColor)
+                                            )
+                                        }
+                                    mDatabase.color = color
+                                }
+                                // TODO manager other meta stream
+                                else -> {
                                     mDatabase.addEntryIndex(entry)
+                                }
+                            }
                             currentEntryNumber++
                             newEntry = null
                         }
@@ -323,16 +311,16 @@ class DatabaseInputKDB(cacheDirectory: File,
             stopContentTimer()
 
         } catch (e: LoadDatabaseException) {
-            mDatabase.clearCache()
+            mDatabase.clearAll()
             throw e
         } catch (e: IOException) {
-            mDatabase.clearCache()
+            mDatabase.clearAll()
             throw IODatabaseException(e)
         } catch (e: OutOfMemoryError) {
-            mDatabase.clearCache()
+            mDatabase.clearAll()
             throw NoMemoryDatabaseException(e)
         } catch (e: Exception) {
-            mDatabase.clearCache()
+            mDatabase.clearAll()
             throw LoadDatabaseException(e)
         }
 

app/src/main/java/com/kunzisoft/keepass/database/file/input/DatabaseInputKDBX.kt

@@ -24,17 +24,16 @@ import android.util.Log
 import com.kunzisoft.encrypt.StreamCipher
 import com.kunzisoft.keepass.database.crypto.CipherEngine
 import com.kunzisoft.keepass.database.crypto.CrsAlgorithm
-import com.kunzisoft.keepass.database.crypto.EncryptionAlgorithm
 import com.kunzisoft.keepass.database.crypto.HmacBlock
 import com.kunzisoft.keepass.database.element.*
 import com.kunzisoft.keepass.database.element.binary.BinaryData
-import com.kunzisoft.keepass.database.element.binary.LoadedKey
 import com.kunzisoft.keepass.database.element.database.CompressionAlgorithm
 import com.kunzisoft.keepass.database.element.database.DatabaseKDBX
 import com.kunzisoft.keepass.database.element.database.DatabaseKDBX.Companion.BASE_64_FLAG
 import com.kunzisoft.keepass.database.element.database.DatabaseVersioned
 import com.kunzisoft.keepass.database.element.entry.EntryKDBX
 import com.kunzisoft.keepass.database.element.group.GroupKDBX
+import com.kunzisoft.keepass.database.element.icon.IconImageCustom
 import com.kunzisoft.keepass.database.element.node.NodeIdUUID
 import com.kunzisoft.keepass.database.element.node.NodeKDBXInterface
 import com.kunzisoft.keepass.database.element.security.ProtectedString
@@ -50,7 +49,6 @@ import com.kunzisoft.keepass.utils.*
 import org.xmlpull.v1.XmlPullParser
 import org.xmlpull.v1.XmlPullParserException
 import org.xmlpull.v1.XmlPullParserFactory
-import java.io.File
 import java.io.IOException
 import java.io.InputStream
 import java.io.UnsupportedEncodingException
@@ -63,12 +61,10 @@ import javax.crypto.CipherInputStream
 import javax.crypto.Mac
 import kotlin.math.min
 
-class DatabaseInputKDBX(cacheDirectory: File,
-                        isRAMSufficient: (memoryWanted: Long) -> Boolean)
-    : DatabaseInput<DatabaseKDBX>(cacheDirectory, isRAMSufficient) {
+class DatabaseInputKDBX(database: DatabaseKDBX)
+    : DatabaseInput<DatabaseKDBX>(database) {
 
     private var randomStream: StreamCipher? = null
-    private lateinit var mDatabase: DatabaseKDBX
 
     private var hashOfHeader: ByteArray? = null
 
@@ -97,42 +93,18 @@ class DatabaseInputKDBX(cacheDirectory: File,
     private var entryCustomDataKey: String? = null
     private var entryCustomDataValue: String? = null
 
-    @Throws(LoadDatabaseException::class)
-    override fun openDatabase(databaseInputStream: InputStream,
-                              password: String?,
-                              keyfileInputStream: InputStream?,
-                              loadedCipherKey: LoadedKey,
-                              progressTaskUpdater: ProgressTaskUpdater?,
-                              fixDuplicateUUID: Boolean): DatabaseKDBX {
-        return openDatabase(databaseInputStream, progressTaskUpdater, fixDuplicateUUID) {
-            mDatabase.binaryCache.loadedCipherKey = loadedCipherKey
-            mDatabase.retrieveMasterKey(password, keyfileInputStream)
-        }
+    private var isRAMSufficient: (memoryWanted: Long) -> Boolean = {true}
+
+    fun setMethodToCheckIfRAMIsSufficient(method: (memoryWanted: Long) -> Boolean) {
+        this.isRAMSufficient = method
     }
 
     @Throws(LoadDatabaseException::class)
     override fun openDatabase(databaseInputStream: InputStream,
-                              masterKey: ByteArray,
-                              loadedCipherKey: LoadedKey,
                               progressTaskUpdater: ProgressTaskUpdater?,
-                              fixDuplicateUUID: Boolean): DatabaseKDBX {
-        return openDatabase(databaseInputStream, progressTaskUpdater, fixDuplicateUUID) {
-            mDatabase.binaryCache.loadedCipherKey = loadedCipherKey
-            mDatabase.masterKey = masterKey
-        }
-    }
-
-    @Throws(LoadDatabaseException::class)
-    private fun openDatabase(databaseInputStream: InputStream,
-                             progressTaskUpdater: ProgressTaskUpdater?,
-                             fixDuplicateUUID: Boolean,
-                             assignMasterKey: (() -> Unit)? = null): DatabaseKDBX {
+                              assignMasterKey: (() -> Unit)): DatabaseKDBX {
         try {
             startKeyTimer(progressTaskUpdater)
-            mDatabase = DatabaseKDBX()
-            mDatabase.binaryCache.cacheDirectory = cacheDirectory
-
-            mDatabase.changeDuplicateId = fixDuplicateUUID
 
             val header = DatabaseHeaderKDBX(mDatabase)
 
@@ -142,19 +114,16 @@ class DatabaseInputKDBX(cacheDirectory: File,
             hashOfHeader = headerAndHash.hash
             val pbHeader = headerAndHash.header
 
-            assignMasterKey?.invoke()
+            assignMasterKey.invoke()
             mDatabase.makeFinalKey(header.masterSeed)
 
             stopKeyTimer()
             startContentTimer(progressTaskUpdater)
 
-            val engine: CipherEngine
             val cipher: Cipher
             try {
-                engine = EncryptionAlgorithm.getFrom(mDatabase.cipherUuid).cipherEngine
+                val engine: CipherEngine = mDatabase.encryptionAlgorithm.cipherEngine
                 engine.forcePaddingCompatibility = true
-                mDatabase.setDataEngine(engine)
-                mDatabase.encryptionAlgorithm = engine.getEncryptionAlgorithm()
                 cipher = engine.getCipher(Cipher.DECRYPT_MODE, mDatabase.finalKey!!, header.encryptionIV)
                 engine.forcePaddingCompatibility = false
             } catch (e: Exception) {
@@ -288,7 +257,7 @@ class DatabaseInputKDBX(cacheDirectory: File,
                     val protectedFlag = dataInputStream.read().toByte() == DatabaseHeaderKDBX.KdbxBinaryFlags.Protected
                     val byteLength = size - 1
                     // No compression at this level
-                    val protectedBinary = mDatabase.buildNewAttachment(
+                    val protectedBinary = mDatabase.buildNewBinaryAttachment(
                             isRAMSufficient.invoke(byteLength.toLong()), false, protectedFlag)
                     protectedBinary.getOutputDataStream(mDatabase.binaryCache).use { outputStream ->
                         dataInputStream.readBytes(byteLength) { buffer ->
@@ -524,7 +493,8 @@ class DatabaseInputKDBX(cacheDirectory: File,
             } else if (name.equals(DatabaseKDBXXML.ElemIcon, ignoreCase = true)) {
                 ctxGroup?.icon?.standard = mDatabase.getStandardIcon(readUInt(xpp, UnsignedInt(0)).toKotlinInt())
             } else if (name.equals(DatabaseKDBXXML.ElemCustomIconID, ignoreCase = true)) {
-                ctxGroup?.icon?.custom = mDatabase.getCustomIcon(readUuid(xpp))
+                val iconUUID = readUuid(xpp)
+                ctxGroup?.icon?.custom = mDatabase.getCustomIcon(iconUUID) ?: IconImageCustom(iconUUID)
             } else if (name.equals(DatabaseKDBXXML.ElemTags, ignoreCase = true)) {
                 ctxGroup?.tags = readTags(xpp)
             } else if (name.equals(DatabaseKDBXXML.ElemPreviousParentGroup, ignoreCase = true)) {
@@ -583,7 +553,8 @@ class DatabaseInputKDBX(cacheDirectory: File,
             } else if (name.equals(DatabaseKDBXXML.ElemIcon, ignoreCase = true)) {
                 ctxEntry?.icon?.standard = mDatabase.getStandardIcon(readUInt(xpp, UnsignedInt(0)).toKotlinInt())
             } else if (name.equals(DatabaseKDBXXML.ElemCustomIconID, ignoreCase = true)) {
-                ctxEntry?.icon?.custom = mDatabase.getCustomIcon(readUuid(xpp))
+                val iconUUID = readUuid(xpp)
+                ctxEntry?.icon?.custom = mDatabase.getCustomIcon(iconUUID) ?: IconImageCustom(iconUUID)
             } else if (name.equals(DatabaseKDBXXML.ElemFgColor, ignoreCase = true)) {
                 ctxEntry?.foregroundColor = readString(xpp)
             } else if (name.equals(DatabaseKDBXXML.ElemBgColor, ignoreCase = true)) {
@@ -704,7 +675,7 @@ class DatabaseInputKDBX(cacheDirectory: File,
             KdbContext.DeletedObject -> if (name.equals(DatabaseKDBXXML.ElemUuid, ignoreCase = true)) {
                 ctxDeletedObject?.uuid = readUuid(xpp)
             } else if (name.equals(DatabaseKDBXXML.ElemDeletionTime, ignoreCase = true)) {
-                ctxDeletedObject?.setDeletionTime(readDateInstant(xpp))
+                ctxDeletedObject?.deletionTime = readDateInstant(xpp)
             } else {
                 readUnknown(xpp)
             }
@@ -885,7 +856,9 @@ class DatabaseInputKDBX(cacheDirectory: File,
 
     @Throws(IOException::class, XmlPullParserException::class)
     private fun readTags(xpp: XmlPullParser): Tags {
-        return Tags(readString(xpp))
+        val tags = Tags(readString(xpp))
+        mDatabase.tagPool.put(tags)
+        return tags
     }
 
     @Throws(XmlPullParserException::class, IOException::class)
@@ -1009,7 +982,7 @@ class DatabaseInputKDBX(cacheDirectory: File,
                 var binaryRetrieve = mDatabase.attachmentPool[id]
                 // Create empty binary if not retrieved in pool
                 if (binaryRetrieve == null) {
-                    binaryRetrieve = mDatabase.buildNewAttachment(
+                    binaryRetrieve = mDatabase.buildNewBinaryAttachment(
                             smallSize = false,
                             compression = false,
                             protection = false,
@@ -1049,7 +1022,7 @@ class DatabaseInputKDBX(cacheDirectory: File,
             return null
 
         // Build the new binary and compress
-        val binaryAttachment = mDatabase.buildNewAttachment(
+        val binaryAttachment = mDatabase.buildNewBinaryAttachment(
                 isRAMSufficient.invoke(base64.length.toLong()), compressed, protected, binaryId)
         try {
             binaryAttachment.getOutputDataStream(mDatabase.binaryCache).use { outputStream ->

app/src/main/java/com/kunzisoft/keepass/database/file/output/DatabaseHeaderOutputKDBX.kt

@@ -25,7 +25,6 @@ import com.kunzisoft.keepass.database.crypto.VariantDictionary
 import com.kunzisoft.keepass.database.crypto.kdf.KdfParameters
 import com.kunzisoft.keepass.database.element.database.DatabaseKDBX
 import com.kunzisoft.keepass.database.exception.DatabaseOutputException
-import com.kunzisoft.keepass.database.file.DatabaseHeader
 import com.kunzisoft.keepass.database.file.DatabaseHeaderKDBX
 import com.kunzisoft.keepass.database.file.DatabaseHeaderKDBX.Companion.FILE_VERSION_40
 import com.kunzisoft.keepass.stream.MacOutputStream
@@ -68,11 +67,11 @@ constructor(private val databaseKDBX: DatabaseKDBX,
     @Throws(IOException::class)
     fun output() {
 
-        mos.write4BytesUInt(DatabaseHeader.PWM_DBSIG_1)
+        mos.write4BytesUInt(DatabaseHeaderKDBX.DBSIG_1)
         mos.write4BytesUInt(DatabaseHeaderKDBX.DBSIG_2)
         mos.write4BytesUInt(header.version)
 
-        writeHeaderField(DatabaseHeaderKDBX.PwDbHeaderV4Fields.CipherID, uuidTo16Bytes(databaseKDBX.cipherUuid))
+        writeHeaderField(DatabaseHeaderKDBX.PwDbHeaderV4Fields.CipherID, uuidTo16Bytes(databaseKDBX.encryptionAlgorithm.uuid))
         writeHeaderField(DatabaseHeaderKDBX.PwDbHeaderV4Fields.CompressionFlags, uIntTo4Bytes(DatabaseHeaderKDBX.getFlagFromCompression(databaseKDBX.compressionAlgorithm)))
         writeHeaderField(DatabaseHeaderKDBX.PwDbHeaderV4Fields.MasterSeed, header.masterSeed)
 

app/src/main/java/com/kunzisoft/keepass/database/file/output/DatabaseOutputKDB.kt

@@ -19,9 +19,11 @@
  */
 package com.kunzisoft.keepass.database.file.output
 
+import android.graphics.Color
 import com.kunzisoft.encrypt.HashManager
 import com.kunzisoft.keepass.database.crypto.EncryptionAlgorithm
 import com.kunzisoft.keepass.database.element.database.DatabaseKDB
+import com.kunzisoft.keepass.database.element.entry.EntryKDB
 import com.kunzisoft.keepass.database.element.group.GroupKDB
 import com.kunzisoft.keepass.database.exception.DatabaseOutputException
 import com.kunzisoft.keepass.database.file.DatabaseHeader
@@ -34,7 +36,6 @@ import java.io.ByteArrayOutputStream
 import java.io.IOException
 import java.io.OutputStream
 import java.security.*
-import java.util.*
 import javax.crypto.Cipher
 import javax.crypto.CipherOutputStream
 
@@ -44,6 +45,9 @@ class DatabaseOutputKDB(private val mDatabaseKDB: DatabaseKDB,
 
     private var headerHashBlock: ByteArray? = null
 
+    private var mGroupList = mutableListOf<GroupKDB>()
+    private var mEntryList = mutableListOf<EntryKDB>()
+
     @Throws(DatabaseOutputException::class)
     fun getFinalKey(header: DatabaseHeader): ByteArray? {
         try {
@@ -61,7 +65,7 @@ class DatabaseOutputKDB(private val mDatabaseKDB: DatabaseKDB,
         // and remove any orphaned nodes that are no longer part of the tree hierarchy
         // also remove the virtual root not present in kdb
         val rootGroup = mDatabaseKDB.rootGroup
-        sortGroupsForOutput()
+        sortNodesForOutput()
 
         val header = outputHeader(mOutputStream)
 
@@ -91,6 +95,7 @@ class DatabaseOutputKDB(private val mDatabaseKDB: DatabaseKDB,
         } finally {
             // Add again the virtual root group for better management
             mDatabaseKDB.rootGroup = rootGroup
+            clearParser()
         }
     }
 
@@ -105,7 +110,7 @@ class DatabaseOutputKDB(private val mDatabaseKDB: DatabaseKDB,
     override fun outputHeader(outputStream: OutputStream): DatabaseHeaderKDB {
         // Build header
         val header = DatabaseHeaderKDB()
-        header.signature1 = DatabaseHeader.PWM_DBSIG_1
+        header.signature1 = DatabaseHeaderKDB.DBSIG_1
         header.signature2 = DatabaseHeaderKDB.DBSIG_2
         header.flags = DatabaseHeaderKDB.FLAG_SHA2
 
@@ -120,8 +125,9 @@ class DatabaseOutputKDB(private val mDatabaseKDB: DatabaseKDB,
         }
 
         header.version = DatabaseHeaderKDB.DBVER_DW
-        header.numGroups = UnsignedInt(mDatabaseKDB.numberOfGroups())
-        header.numEntries = UnsignedInt(mDatabaseKDB.numberOfEntries())
+        // To remove root
+        header.numGroups = UnsignedInt(mGroupList.size)
+        header.numEntries = UnsignedInt(mEntryList.size)
         header.numKeyEncRounds = UnsignedInt.fromKotlinLong(mDatabaseKDB.numberKeyEncryptionRounds)
 
         setIVs(header)
@@ -194,31 +200,89 @@ class DatabaseOutputKDB(private val mDatabaseKDB: DatabaseKDB,
         }
 
         // Groups
-        mDatabaseKDB.doForEachGroupInIndex { group ->
+        mGroupList.forEach { group ->
+            if (group != mDatabaseKDB.rootGroup) {
                 GroupOutputKDB(group, outputStream).output()
             }
+        }
         // Entries
-        mDatabaseKDB.doForEachEntryInIndex { entry ->
+        mEntryList.forEach { entry ->
             EntryOutputKDB(mDatabaseKDB, entry, outputStream).output()
         }
     }
 
-    private fun sortGroupsForOutput() {
-        val groupList = ArrayList<GroupKDB>()
-        // Rebuild list according to sorting order removing any orphaned groups
-        for (rootGroup in mDatabaseKDB.rootGroups) {
-            sortGroup(rootGroup, groupList)
-        }
-        mDatabaseKDB.setGroupIndexes(groupList)
+    private fun clearParser() {
+        mGroupList.clear()
+        mEntryList.clear()
     }
 
-    private fun sortGroup(group: GroupKDB, groupList: MutableList<GroupKDB>) {
+    private fun sortNodesForOutput() {
+        clearParser()
+        // Rebuild list according to sorting order removing any orphaned groups
+        // Do not keep root
+        mDatabaseKDB.rootGroup?.getChildGroups()?.let { rootSubGroups ->
+            for (rootGroup in rootSubGroups) {
+                sortGroup(rootGroup)
+            }
+        }
+    }
+
+    private fun sortGroup(group: GroupKDB) {
         // Add current tree
-        groupList.add(group)
+        mGroupList.add(group)
+
+        for (childEntry in group.getChildEntries()) {
+            if (!childEntry.isMetaStreamDefaultUsername()
+                && !childEntry.isMetaStreamDatabaseColor()) {
+                mEntryList.add(childEntry)
+            }
+        }
+
+        // Add MetaStream
+        if (mDatabaseKDB.defaultUserName.isNotEmpty()) {
+            val metaEntry = EntryKDB().apply {
+                setMetaStreamDefaultUsername()
+                setDefaultUsername(this)
+            }
+            mDatabaseKDB.addEntryTo(metaEntry, group)
+            mEntryList.add(metaEntry)
+        }
+        if (mDatabaseKDB.color != null) {
+            val metaEntry = EntryKDB().apply {
+                setMetaStreamDatabaseColor()
+                setDatabaseColor(this)
+            }
+            mDatabaseKDB.addEntryTo(metaEntry, group)
+            mEntryList.add(metaEntry)
+        }
 
         // Recurse over children
         for (childGroup in group.getChildGroups()) {
-            sortGroup(childGroup, groupList)
+            sortGroup(childGroup)
+        }
+    }
+
+    private fun setDefaultUsername(entryKDB: EntryKDB) {
+        val binaryData = mDatabaseKDB.buildNewBinaryAttachment()
+        entryKDB.putBinary(binaryData, mDatabaseKDB.attachmentPool)
+        BufferedOutputStream(binaryData.getOutputDataStream(mDatabaseKDB.binaryCache)).use { outputStream ->
+            outputStream.write(mDatabaseKDB.defaultUserName.toByteArray())
+        }
+    }
+
+    private fun setDatabaseColor(entryKDB: EntryKDB) {
+        val binaryData = mDatabaseKDB.buildNewBinaryAttachment()
+        entryKDB.putBinary(binaryData, mDatabaseKDB.attachmentPool)
+        BufferedOutputStream(binaryData.getOutputDataStream(mDatabaseKDB.binaryCache)).use { outputStream ->
+            var reversColor = Color.BLACK
+            mDatabaseKDB.color?.let {
+                reversColor = Color.rgb(
+                    Color.blue(it),
+                    Color.green(it),
+                    Color.red(it)
+                )
+            }
+            outputStream.write4BytesUInt(UnsignedInt(reversColor))
         }
     }
 

app/src/main/java/com/kunzisoft/keepass/database/file/output/DatabaseOutputKDBX.kt

@@ -24,9 +24,7 @@ import android.util.Log
 import android.util.Xml
 import com.kunzisoft.encrypt.StreamCipher
 import com.kunzisoft.keepass.database.action.node.NodeHandler
-import com.kunzisoft.keepass.database.crypto.CipherEngine
 import com.kunzisoft.keepass.database.crypto.CrsAlgorithm
-import com.kunzisoft.keepass.database.crypto.EncryptionAlgorithm
 import com.kunzisoft.keepass.database.crypto.kdf.KdfFactory
 import com.kunzisoft.keepass.database.element.*
 import com.kunzisoft.keepass.database.element.database.CompressionAlgorithm
@@ -39,7 +37,6 @@ import com.kunzisoft.keepass.database.element.group.GroupKDBX
 import com.kunzisoft.keepass.database.element.node.NodeKDBXInterface
 import com.kunzisoft.keepass.database.element.security.MemoryProtectionConfig
 import com.kunzisoft.keepass.database.exception.DatabaseOutputException
-import com.kunzisoft.keepass.database.exception.UnknownKDF
 import com.kunzisoft.keepass.database.file.DatabaseHeaderKDBX
 import com.kunzisoft.keepass.database.file.DatabaseHeaderKDBX.Companion.FILE_VERSION_40
 import com.kunzisoft.keepass.database.file.DatabaseHeaderKDBX.Companion.FILE_VERSION_41
@@ -48,11 +45,9 @@ import com.kunzisoft.keepass.database.file.DateKDBXUtil
 import com.kunzisoft.keepass.stream.HashedBlockOutputStream
 import com.kunzisoft.keepass.stream.HmacBlockOutputStream
 import com.kunzisoft.keepass.utils.*
-import org.joda.time.DateTime
 import org.xmlpull.v1.XmlSerializer
 import java.io.IOException
 import java.io.OutputStream
-import java.security.NoSuchAlgorithmException
 import java.security.SecureRandom
 import java.util.*
 import java.util.zip.GZIPOutputStream
@@ -70,18 +65,11 @@ class DatabaseOutputKDBX(private val mDatabaseKDBX: DatabaseKDBX,
     private var header: DatabaseHeaderKDBX? = null
     private var hashOfHeader: ByteArray? = null
     private var headerHmac: ByteArray? = null
-    private var engine: CipherEngine? = null
 
     @Throws(DatabaseOutputException::class)
     override fun output() {
 
         try {
-            try {
-                engine = EncryptionAlgorithm.getFrom(mDatabaseKDBX.cipherUuid).cipherEngine
-            } catch (e: NoSuchAlgorithmException) {
-                throw DatabaseOutputException("No such cipher", e)
-            }
-
             header = outputHeader(mOutputStream)
 
             val osPlain: OutputStream = if (header!!.version.isBefore(FILE_VERSION_40)) {
@@ -241,6 +229,9 @@ class DatabaseOutputKDBX(private val mDatabaseKDBX: DatabaseKDBX,
             writeString(DatabaseKDBXXML.ElemHeaderHash, String(Base64.encode(hashOfHeader!!, BASE_64_FLAG)))
         }
 
+        if (!header!!.version.isBefore(FILE_VERSION_40)) {
+            writeDateInstant(DatabaseKDBXXML.ElemSettingsChanged, mDatabaseKDBX.settingsChanged)
+        }
         writeString(DatabaseKDBXXML.ElemDbName, mDatabaseKDBX.name, true)
         writeDateInstant(DatabaseKDBXXML.ElemDbNameChanged, mDatabaseKDBX.nameChanged)
         writeString(DatabaseKDBXXML.ElemDbDesc, mDatabaseKDBX.description, true)
@@ -280,7 +271,10 @@ class DatabaseOutputKDBX(private val mDatabaseKDBX: DatabaseKDBX,
     private fun attachStreamEncryptor(header: DatabaseHeaderKDBX, os: OutputStream): CipherOutputStream {
         val cipher: Cipher
         try {
-            cipher = engine!!.getCipher(Cipher.ENCRYPT_MODE, mDatabaseKDBX.finalKey!!, header.encryptionIV)
+            cipher = mDatabaseKDBX
+                .encryptionAlgorithm
+                .cipherEngine
+                .getCipher(Cipher.ENCRYPT_MODE, mDatabaseKDBX.finalKey!!, header.encryptionIV)
         } catch (e: Exception) {
             throw DatabaseOutputException("Invalid algorithm.", e)
         }
@@ -293,7 +287,7 @@ class DatabaseOutputKDBX(private val mDatabaseKDBX: DatabaseKDBX,
         val random = super.setIVs(header)
         random.nextBytes(header.masterSeed)
 
-        val ivLength = engine!!.ivLength()
+        val ivLength = mDatabaseKDBX.encryptionAlgorithm.cipherEngine.ivLength()
         if (ivLength != header.encryptionIV.size) {
             header.encryptionIV = ByteArray(ivLength)
         }
@@ -303,12 +297,7 @@ class DatabaseOutputKDBX(private val mDatabaseKDBX: DatabaseKDBX,
             mDatabaseKDBX.kdfParameters = KdfFactory.aesKdf.defaultParameters
         }
 
-        try {
-            val kdf = mDatabaseKDBX.getEngineKDBX4(mDatabaseKDBX.kdfParameters)
-            kdf.randomize(mDatabaseKDBX.kdfParameters!!)
-        } catch (unknownKDF: UnknownKDF) {
-            Log.e(TAG, "Unable to retrieve header", unknownKDF)
-        }
+        mDatabaseKDBX.randomizeKdfParameters()
 
         if (header.version.isBefore(FILE_VERSION_40)) {
             header.innerRandomStream = CrsAlgorithm.Salsa20
@@ -592,7 +581,7 @@ class DatabaseOutputKDBX(private val mDatabaseKDBX: DatabaseKDBX,
         xml.startTag(null, DatabaseKDBXXML.ElemDeletedObject)
 
         writeUuid(DatabaseKDBXXML.ElemUuid, value.uuid)
-        writeDateInstant(DatabaseKDBXXML.ElemDeletionTime, value.getDeletionTime())
+        writeDateInstant(DatabaseKDBXXML.ElemDeletionTime, value.deletionTime)
 
         xml.endTag(null, DatabaseKDBXXML.ElemDeletedObject)
     }
@@ -618,7 +607,7 @@ class DatabaseOutputKDBX(private val mDatabaseKDBX: DatabaseKDBX,
     }
 
     @Throws(IllegalArgumentException::class, IllegalStateException::class, IOException::class)
-    private fun writeDeletedObjects(value: List<DeletedObject>) {
+    private fun writeDeletedObjects(value: Collection<DeletedObject>) {
         xml.startTag(null, DatabaseKDBXXML.ElemDeletedObjects)
 
         for (pdo in value) {
@@ -674,7 +663,7 @@ class DatabaseOutputKDBX(private val mDatabaseKDBX: DatabaseKDBX,
 
     @Throws(IllegalArgumentException::class, IllegalStateException::class, IOException::class)
     private fun writeTags(tags: Tags) {
-        if (!tags.isEmpty()) {
+        if (tags.isNotEmpty()) {
             writeString(DatabaseKDBXXML.ElemTags, tags.toString())
         }
     }

app/src/main/java/com/kunzisoft/keepass/database/merge/DatabaseKDBXMerger.kt

@@ -0,0 +1,504 @@
+/*
+ * Copyright 2022 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePassDX.
+ *
+ *  KeePassDX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePassDX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+package com.kunzisoft.keepass.database.merge
+
+import com.kunzisoft.keepass.database.action.node.NodeHandler
+import com.kunzisoft.keepass.database.element.Attachment
+import com.kunzisoft.keepass.database.element.CustomData
+import com.kunzisoft.keepass.database.element.DateInstant
+import com.kunzisoft.keepass.database.element.database.DatabaseKDB
+import com.kunzisoft.keepass.database.element.database.DatabaseKDBX
+import com.kunzisoft.keepass.database.element.entry.EntryKDB
+import com.kunzisoft.keepass.database.element.entry.EntryKDBX
+import com.kunzisoft.keepass.database.element.group.GroupKDB
+import com.kunzisoft.keepass.database.element.group.GroupKDBX
+import com.kunzisoft.keepass.database.element.node.NodeId
+import com.kunzisoft.keepass.database.element.node.NodeIdInt
+import com.kunzisoft.keepass.database.element.node.NodeIdUUID
+import com.kunzisoft.keepass.utils.readAllBytes
+import java.io.IOException
+import java.util.*
+
+class DatabaseKDBXMerger(private var database: DatabaseKDBX) {
+
+    var isRAMSufficient: (memoryWanted: Long) -> Boolean = {true}
+
+    /**
+     * Merge a KDB database in a KDBX database, by default all data are copied from the KDB
+     */
+    fun merge(databaseToMerge: DatabaseKDB) {
+        val rootGroup = database.rootGroup
+        val rootGroupId = rootGroup?.nodeId
+        val rootGroupToMerge = databaseToMerge.rootGroup
+        val rootGroupIdToMerge = rootGroupToMerge?.nodeId
+
+        if (rootGroupId == null || rootGroupIdToMerge == null) {
+            throw IOException("Database is not open")
+        }
+
+        // Replace the UUID of the KDB root group to init seed
+        databaseToMerge.removeGroupIndex(rootGroupToMerge)
+        rootGroupToMerge.nodeId = NodeIdInt(0)
+        databaseToMerge.addGroupIndex(rootGroupToMerge)
+
+        // Merge children
+        rootGroupToMerge.doForEachChild(
+            object : NodeHandler<EntryKDB>() {
+                override fun operate(node: EntryKDB): Boolean {
+                    mergeEntry(rootGroup.nodeId, node, databaseToMerge)
+                    return true
+                }
+            },
+            object : NodeHandler<GroupKDB>() {
+                override fun operate(node: GroupKDB): Boolean {
+                    mergeGroup(rootGroup.nodeId, node, databaseToMerge)
+                    return true
+                }
+            }
+        )
+    }
+
+    /**
+     * Utility method to transform KDB id nodes in KDBX id nodes
+     */
+    private fun getNodeIdUUIDFrom(seed: NodeId<UUID>, intId: NodeId<Int>): NodeId<UUID> {
+        val seedUUID = seed.id
+        val idInt = intId.id
+        return NodeIdUUID(UUID(seedUUID.mostSignificantBits, seedUUID.leastSignificantBits + idInt))
+    }
+
+    /**
+     * Utility method to merge a KDB entry
+     */
+    private fun mergeEntry(seed: NodeId<UUID>, nodeToMerge: EntryKDB, databaseToMerge: DatabaseKDB) {
+        val entryId: NodeId<UUID> = nodeToMerge.nodeId
+        val entry = database.getEntryById(entryId)
+
+        databaseToMerge.getEntryById(entryId)?.let { srcEntryToMerge ->
+            // Do not merge meta stream elements
+            if (!srcEntryToMerge.isMetaStream()) {
+                // Retrieve parent in current database
+                var parentEntryToMerge: GroupKDBX? = null
+                srcEntryToMerge.parent?.nodeId?.let {
+                    val parentGroupIdToMerge = getNodeIdUUIDFrom(seed, it)
+                    parentEntryToMerge = database.getGroupById(parentGroupIdToMerge)
+                }
+                // Copy attachment
+                var newAttachment: Attachment? = null
+                srcEntryToMerge.getAttachment(databaseToMerge.attachmentPool)?.let { attachment ->
+                    val binarySize = attachment.binaryData.getSize()
+                    val binaryData = database.buildNewBinaryAttachment(
+                        isRAMSufficient.invoke(binarySize),
+                        attachment.binaryData.isCompressed,
+                        attachment.binaryData.isProtected
+                    )
+                    attachment.binaryData.getInputDataStream(databaseToMerge.binaryCache)
+                        .use { inputStream ->
+                            binaryData.getOutputDataStream(database.binaryCache)
+                                .use { outputStream ->
+                                    inputStream.readAllBytes { buffer ->
+                                        outputStream.write(buffer)
+                                    }
+                                }
+                        }
+                    newAttachment = Attachment(attachment.name, binaryData)
+                }
+                // Create new entry format
+                val entryToMerge = EntryKDBX().apply {
+                    this.nodeId = srcEntryToMerge.nodeId
+                    this.icon = srcEntryToMerge.icon
+                    this.creationTime = DateInstant(srcEntryToMerge.creationTime)
+                    this.lastModificationTime = DateInstant(srcEntryToMerge.lastModificationTime)
+                    this.lastAccessTime = DateInstant(srcEntryToMerge.lastAccessTime)
+                    this.expiryTime = DateInstant(srcEntryToMerge.expiryTime)
+                    this.expires = srcEntryToMerge.expires
+                    this.title = srcEntryToMerge.title
+                    this.username = srcEntryToMerge.username
+                    this.password = srcEntryToMerge.password
+                    this.url = srcEntryToMerge.url
+                    this.notes = srcEntryToMerge.notes
+                    newAttachment?.let {
+                        this.putAttachment(it, database.attachmentPool)
+                    }
+                }
+                if (entry != null) {
+                    entry.updateWith(entryToMerge, false)
+                } else if (parentEntryToMerge != null) {
+                    database.addEntryTo(entryToMerge, parentEntryToMerge)
+                }
+            }
+        }
+    }
+
+    /**
+     * Utility method to merge a KDB group
+     */
+    private fun mergeGroup(seed: NodeId<UUID>, nodeToMerge: GroupKDB, databaseToMerge: DatabaseKDB) {
+        val groupId: NodeId<Int> = nodeToMerge.nodeId
+        val group = database.getGroupById(getNodeIdUUIDFrom(seed, groupId))
+
+        databaseToMerge.getGroupById(groupId)?.let { srcGroupToMerge ->
+            // Retrieve parent in current database
+            var parentGroupToMerge: GroupKDBX? = null
+            srcGroupToMerge.parent?.nodeId?.let {
+                val parentGroupIdToMerge = getNodeIdUUIDFrom(seed, it)
+                parentGroupToMerge = database.getGroupById(parentGroupIdToMerge)
+            }
+            val groupToMerge = GroupKDBX().apply {
+                this.nodeId = getNodeIdUUIDFrom(seed, srcGroupToMerge.nodeId)
+                this.icon = srcGroupToMerge.icon
+                this.creationTime = DateInstant(srcGroupToMerge.creationTime)
+                this.lastModificationTime = DateInstant(srcGroupToMerge.lastModificationTime)
+                this.lastAccessTime = DateInstant(srcGroupToMerge.lastAccessTime)
+                this.expiryTime = DateInstant(srcGroupToMerge.expiryTime)
+                this.expires = srcGroupToMerge.expires
+                this.title = srcGroupToMerge.title
+            }
+            if (group != null) {
+                group.updateWith(groupToMerge, false)
+            } else if (parentGroupToMerge != null) {
+                database.addGroupTo(groupToMerge, parentGroupToMerge)
+            }
+        }
+    }
+
+    /**
+     * Merge a KDB> database in a KDBX database,
+     * Try to take into account the modification date of each element
+     * To make a merge as accurate as possible
+     */
+    fun merge(databaseToMerge: DatabaseKDBX) {
+
+        // Merge settings
+        if (database.nameChanged.date.before(databaseToMerge.nameChanged.date)) {
+            database.name = databaseToMerge.name
+            database.nameChanged = databaseToMerge.nameChanged
+        }
+        if (database.descriptionChanged.date.before(databaseToMerge.descriptionChanged.date)) {
+            database.description = databaseToMerge.description
+            database.descriptionChanged = databaseToMerge.descriptionChanged
+        }
+        if (database.defaultUserNameChanged.date.before(databaseToMerge.defaultUserNameChanged.date)) {
+            database.defaultUserName = databaseToMerge.defaultUserName
+            database.defaultUserNameChanged = databaseToMerge.defaultUserNameChanged
+        }
+        if (database.keyLastChanged.date.before(databaseToMerge.keyLastChanged.date)) {
+            database.keyChangeRecDays = databaseToMerge.keyChangeRecDays
+            database.keyChangeForceDays = databaseToMerge.keyChangeForceDays
+            database.isKeyChangeForceOnce = databaseToMerge.isKeyChangeForceOnce
+            database.keyLastChanged = databaseToMerge.keyLastChanged
+        }
+        if (database.recycleBinChanged.date.before(databaseToMerge.recycleBinChanged.date)) {
+            database.isRecycleBinEnabled = databaseToMerge.isRecycleBinEnabled
+            database.recycleBinUUID = databaseToMerge.recycleBinUUID
+            database.recycleBinChanged = databaseToMerge.recycleBinChanged
+        }
+        if (database.entryTemplatesGroupChanged.date.before(databaseToMerge.entryTemplatesGroupChanged.date)) {
+            database.entryTemplatesGroup = databaseToMerge.entryTemplatesGroup
+            database.entryTemplatesGroupChanged = databaseToMerge.entryTemplatesGroupChanged
+        }
+        if (database.settingsChanged.date.before(databaseToMerge.settingsChanged.date)) {
+            database.color = databaseToMerge.color
+            database.compressionAlgorithm = databaseToMerge.compressionAlgorithm
+            database.historyMaxItems = databaseToMerge.historyMaxItems
+            database.historyMaxSize = databaseToMerge.historyMaxSize
+            database.encryptionAlgorithm = databaseToMerge.encryptionAlgorithm
+            database.kdfEngine = databaseToMerge.kdfEngine
+            database.numberKeyEncryptionRounds = databaseToMerge.numberKeyEncryptionRounds
+            database.memoryUsage = databaseToMerge.memoryUsage
+            database.parallelism = databaseToMerge.parallelism
+            database.settingsChanged = databaseToMerge.settingsChanged
+        }
+
+        val rootGroup = database.rootGroup
+        val rootGroupId = rootGroup?.nodeId
+        val rootGroupToMerge = databaseToMerge.rootGroup
+        val rootGroupIdToMerge = rootGroupToMerge?.nodeId
+
+        if (rootGroupId == null || rootGroupIdToMerge == null) {
+            throw IOException("Database is not open")
+        }
+
+        // UUID of the root group to merge is unknown
+        if (database.getGroupById(rootGroupIdToMerge) == null) {
+            // Change it to copy children database root
+            databaseToMerge.removeGroupIndex(rootGroupToMerge)
+            rootGroupToMerge.nodeId = rootGroupId
+            databaseToMerge.addGroupIndex(rootGroupToMerge)
+        }
+
+        // Merge root group
+        if (rootGroup.lastModificationTime.date
+                .before(rootGroupToMerge.lastModificationTime.date)) {
+            rootGroup.updateWith(rootGroupToMerge, updateParents = false)
+        }
+        // Merge children
+        rootGroupToMerge.doForEachChild(
+            object : NodeHandler<EntryKDBX>() {
+                override fun operate(node: EntryKDBX): Boolean {
+                    mergeEntry(node, databaseToMerge)
+                    return true
+                }
+            },
+            object : NodeHandler<GroupKDBX>() {
+                override fun operate(node: GroupKDBX): Boolean {
+                    mergeGroup(node, databaseToMerge)
+                    return true
+                }
+            }
+        )
+
+        // Merge custom data in database header
+        mergeCustomData(database.customData, databaseToMerge.customData)
+
+        // Merge icons
+        databaseToMerge.iconsManager.doForEachCustomIcon { iconImageCustom, binaryData ->
+            val customIconUuid = iconImageCustom.uuid
+            // If custom icon not present, add it
+            val customIcon = database.iconsManager.getIcon(customIconUuid)
+            if (customIcon == null) {
+                database.addCustomIcon(
+                    customIconUuid,
+                    iconImageCustom.name,
+                    iconImageCustom.lastModificationTime,
+                    false
+                ) { _, newBinaryData ->
+                    binaryData.getInputDataStream(databaseToMerge.binaryCache).use { inputStream ->
+                        newBinaryData?.getOutputDataStream(database.binaryCache).use { outputStream ->
+                            inputStream.readAllBytes { buffer ->
+                                outputStream?.write(buffer)
+                            }
+                        }
+                    }
+                }
+            } else {
+                val customIconModification = customIcon.lastModificationTime
+                val customIconToMerge = databaseToMerge.iconsManager.getIcon(customIconUuid)
+                val customIconModificationToMerge = customIconToMerge?.lastModificationTime
+                if (customIconModification != null && customIconModificationToMerge != null) {
+                    if (customIconModification.date.before(customIconModificationToMerge.date)) {
+                        customIcon.updateWith(customIconToMerge)
+                    }
+                } else if (customIconModificationToMerge != null) {
+                    customIcon.updateWith(customIconToMerge)
+                }
+            }
+        }
+
+        // Manage deleted objects
+        databaseToMerge.deletedObjects.forEach { deletedObject ->
+            val deletedObjectId = deletedObject.uuid
+            val databaseEntry = database.getEntryById(deletedObjectId)
+            val databaseGroup = database.getGroupById(deletedObjectId)
+            val databaseIcon = database.iconsManager.getIcon(deletedObjectId)
+            val databaseIconModificationTime = databaseIcon?.lastModificationTime
+            if (databaseEntry != null
+                && deletedObject.deletionTime.date
+                    .after(databaseEntry.lastModificationTime.date)) {
+                database.removeEntryFrom(databaseEntry, databaseEntry.parent)
+            }
+            if (databaseGroup != null
+                && deletedObject.deletionTime.date
+                    .after(databaseGroup.lastModificationTime.date)) {
+                database.removeGroupFrom(databaseGroup, databaseGroup.parent)
+            }
+            if (databaseIcon != null
+                && (
+                    databaseIconModificationTime == null
+                    || (deletedObject.deletionTime.date.after(databaseIconModificationTime.date))
+                    )
+            ) {
+                database.removeCustomIcon(deletedObjectId)
+            }
+            // Attachments are removed and optimized during the database save
+        }
+    }
+
+    /**
+     * Merge [customDataToMerge] in [customData]
+     */
+    private fun mergeCustomData(customData: CustomData, customDataToMerge: CustomData) {
+        customDataToMerge.doForEachItems { customDataItemToMerge ->
+            val customDataItem = customData.get(customDataItemToMerge.key)
+            if (customDataItem == null) {
+                customData.put(customDataItemToMerge)
+            } else {
+                val customDataItemModification = customDataItem.lastModificationTime
+                val customDataItemToMergeModification = customDataItemToMerge.lastModificationTime
+                if (customDataItemModification != null && customDataItemToMergeModification != null) {
+                    if (customDataItemModification.date
+                            .before(customDataItemToMergeModification.date)) {
+                        customData.put(customDataItemToMerge)
+                    }
+                } else {
+                    customData.put(customDataItemToMerge)
+                }
+            }
+        }
+    }
+
+    /**
+     * Utility method to merge a KDBX entry
+     */
+    private fun mergeEntry(nodeToMerge: EntryKDBX, databaseToMerge: DatabaseKDBX) {
+        val entryId = nodeToMerge.nodeId
+        val entry = database.getEntryById(entryId)
+        val deletedObject = database.getDeletedObject(entryId)
+
+        databaseToMerge.getEntryById(entryId)?.let { srcEntryToMerge ->
+            // Retrieve parent in current database
+            var parentEntryToMerge: GroupKDBX? = null
+            srcEntryToMerge.parent?.nodeId?.let {
+                parentEntryToMerge = database.getGroupById(it)
+            }
+            val entryToMerge = EntryKDBX().apply {
+                updateWith(srcEntryToMerge, copyHistory = true, updateParents = false)
+            }
+
+            // Copy attachments in main pool
+            val newAttachments = mutableListOf<Attachment>()
+            entryToMerge.getAttachments(databaseToMerge.attachmentPool).forEach { attachment ->
+                val binarySize = attachment.binaryData.getSize()
+                val binaryData = database.buildNewBinaryAttachment(
+                    isRAMSufficient.invoke(binarySize),
+                    attachment.binaryData.isCompressed,
+                    attachment.binaryData.isProtected
+                )
+                attachment.binaryData.getInputDataStream(databaseToMerge.binaryCache).use { inputStream ->
+                    binaryData.getOutputDataStream(database.binaryCache).use { outputStream ->
+                        inputStream.readAllBytes { buffer ->
+                            outputStream.write(buffer)
+                        }
+                    }
+                }
+                newAttachments.add(Attachment(attachment.name, binaryData))
+            }
+            entryToMerge.removeAttachments()
+            newAttachments.forEach { newAttachment ->
+                entryToMerge.putAttachment(newAttachment, database.attachmentPool)
+            }
+
+            if (entry == null) {
+                // If it's a deleted object, but another instance was updated
+                // If entry parent to add exists and in current database
+                if ((deletedObject == null
+                    || deletedObject.deletionTime.date
+                        .before(entryToMerge.lastModificationTime.date))
+                    && parentEntryToMerge != null) {
+                    database.addEntryTo(entryToMerge, parentEntryToMerge)
+                }
+            } else {
+                // Merge independently custom data
+                mergeCustomData(entry.customData, entryToMerge.customData)
+                // Merge by modification time
+                if (entry.lastModificationTime.date
+                        .before(entryToMerge.lastModificationTime.date)
+                ) {
+                    addHistory(entry, entryToMerge)
+                    if (parentEntryToMerge == entry.parent) {
+                        entry.updateWith(entryToMerge, copyHistory = true, updateParents = false)
+                    } else {
+                        // Update entry with databaseEntryToMerge and merge history
+                        database.removeEntryFrom(entry, entry.parent)
+                        if (parentEntryToMerge != null) {
+                            database.addEntryTo(entryToMerge, parentEntryToMerge)
+                        }
+                    }
+                } else if (entry.lastModificationTime.date
+                        .after(entryToMerge.lastModificationTime.date)
+                ) {
+                    addHistory(entryToMerge, entry)
+                }
+            }
+        }
+    }
+
+    /**
+     * Utility method to merge an history from an [entryA] to an [entryB],
+     * [entryB] is modified
+     */
+    private fun addHistory(entryA: EntryKDBX, entryB: EntryKDBX) {
+        // Keep entry as history if already not present
+        entryA.history.forEach { history ->
+            // If history not present
+            if (!entryB.history.any {
+                    it.lastModificationTime == history.lastModificationTime
+                }) {
+                entryB.addEntryToHistory(history)
+            }
+        }
+        // Last entry not present
+        if (entryB.history.find {
+                it.lastModificationTime == entryA.lastModificationTime
+            } == null) {
+            val history = EntryKDBX().apply {
+                updateWith(entryA, copyHistory = false, updateParents = false)
+                parent = null
+            }
+            entryB.addEntryToHistory(history)
+        }
+    }
+
+    /**
+     * Utility method to merge a KDBX group
+     */
+    private fun mergeGroup(nodeToMerge: GroupKDBX, databaseToMerge: DatabaseKDBX) {
+        val groupId = nodeToMerge.nodeId
+        val group = database.getGroupById(groupId)
+        val deletedObject = database.getDeletedObject(groupId)
+
+        databaseToMerge.getGroupById(groupId)?.let { srcGroupToMerge ->
+            // Retrieve parent in current database
+            var parentGroupToMerge: GroupKDBX? = null
+            srcGroupToMerge.parent?.nodeId?.let {
+                parentGroupToMerge = database.getGroupById(it)
+            }
+            val groupToMerge = GroupKDBX().apply {
+                updateWith(srcGroupToMerge, updateParents = false)
+            }
+
+            if (group == null) {
+                // If group parent to add exists and in current database
+                if ((deletedObject == null
+                    || deletedObject.deletionTime.date
+                        .before(groupToMerge.lastModificationTime.date))
+                    && parentGroupToMerge != null) {
+                    database.addGroupTo(groupToMerge, parentGroupToMerge)
+                }
+            } else {
+                // Merge independently custom data
+                mergeCustomData(group.customData, groupToMerge.customData)
+                // Merge by modification time
+                if (group.lastModificationTime.date
+                        .before(groupToMerge.lastModificationTime.date)
+                ) {
+                    if (parentGroupToMerge == group.parent) {
+                        group.updateWith(groupToMerge, false)
+                    } else {
+                        database.removeGroupFrom(group, group.parent)
+                        if (parentGroupToMerge != null) {
+                            database.addGroupTo(groupToMerge, parentGroupToMerge)
+                        }
+                    }
+                }
+            }
+        }
+    }
+}

app/src/main/java/com/kunzisoft/keepass/database/search/SearchHelper.kt

@@ -24,6 +24,7 @@ import com.kunzisoft.keepass.database.action.node.NodeHandler
 import com.kunzisoft.keepass.database.element.Database
 import com.kunzisoft.keepass.database.element.Entry
 import com.kunzisoft.keepass.database.element.Group
+import com.kunzisoft.keepass.database.element.node.NodeId
 import com.kunzisoft.keepass.model.EntryInfo
 import com.kunzisoft.keepass.model.SearchInfo
 import com.kunzisoft.keepass.otp.OtpEntryFields.OTP_FIELD
@@ -37,16 +38,23 @@ class SearchHelper {
 
     fun createVirtualGroupWithSearchResult(database: Database,
                                            searchParameters: SearchParameters,
-                                           omitBackup: Boolean,
+                                           fromGroup: NodeId<*>? = null,
                                            max: Int): Group? {
 
-        val searchGroup = database.createGroup()
-        searchGroup?.isVirtual = true
+        val searchGroup = database.createGroup(virtual = true)
         searchGroup?.title = "\"" + searchParameters.searchQuery + "\""
 
         // Search all entries
         incrementEntry = 0
-        database.rootGroup?.doForEachChild(
+
+        val allowCustomSearchable = database.allowCustomSearchableGroup()
+        val startGroup = if (searchParameters.searchInCurrentGroup && fromGroup != null) {
+            database.getGroupById(fromGroup) ?: database.rootGroup
+        } else {
+            database.rootGroup
+        }
+        if (groupConditions(database, startGroup, searchParameters, allowCustomSearchable, max)) {
+            startGroup?.doForEachChild(
                 object : NodeHandler<Entry>() {
                     override fun operate(node: Entry): Boolean {
                         if (incrementEntry >= max)
@@ -63,19 +71,43 @@ class SearchHelper {
                 },
                 object : NodeHandler<Group>() {
                     override fun operate(node: Group): Boolean {
-                        return when {
-                            incrementEntry >= max -> false
-                            database.isGroupSearchable(node, omitBackup) -> true
-                            else -> false
-                        }
+                        return groupConditions(database,
+                            node,
+                            searchParameters,
+                            allowCustomSearchable,
+                            max
+                        )
                     }
                 },
-                false)
+                false
+            )
+        }
 
         searchGroup?.refreshNumberOfChildEntries()
         return searchGroup
     }
 
+    private fun groupConditions(database: Database,
+                                group: Group?,
+                                searchParameters: SearchParameters,
+                                allowCustomSearchable: Boolean,
+                                max: Int): Boolean {
+        return if (group == null)
+            false
+        else if (incrementEntry >= max)
+            false
+        else if (database.groupIsInRecycleBin(group))
+            searchParameters.searchInRecycleBin
+        else if (database.groupIsInTemplates(group))
+            searchParameters.searchInTemplates
+        else if (!allowCustomSearchable)
+            true
+        else if (searchParameters.searchInSearchableGroup)
+            group.isSearchable()
+        else
+            true
+    }
+
     private fun entryContainsString(database: Database,
                                     entry: Entry,
                                     searchParameters: SearchParameters): Boolean {
@@ -89,7 +121,18 @@ class SearchHelper {
     }
 
     companion object {
-        const val MAX_SEARCH_ENTRY = 10
+        const val MAX_SEARCH_ENTRY = 1000
+
+        /**
+         * Method to show the number of search results with max results
+         */
+        fun showNumberOfSearchResults(number: Int): String {
+            return if (number >= MAX_SEARCH_ENTRY) {
+                (MAX_SEARCH_ENTRY-1).toString() + "+"
+            } else {
+                number.toString()
+            }
+        }
 
         /**
          * Utility method to perform actions if item is found or not after an auto search in [database]
@@ -111,7 +154,6 @@ class SearchHelper {
                     // If search provide results
                     database.createVirtualGroupFromSearchInfo(
                             searchInfo.toString(),
-                            PreferencesUtil.omitBackup(context),
                             MAX_SEARCH_ENTRY
                     )?.let { searchGroup ->
                         if (searchGroup.numberOfChildEntries > 0) {
@@ -133,16 +175,23 @@ class SearchHelper {
         fun searchInEntry(entry: Entry,
                           searchParameters: SearchParameters): Boolean {
             val searchQuery = searchParameters.searchQuery
-            // Entry don't contains string if the search string is empty
+
+            // Not found if the search string is empty
             if (searchQuery.isEmpty())
                 return false
 
+            // Exclude entry expired
+            if (searchParameters.excludeExpired) {
+                if (entry.isCurrentlyExpires)
+                    return false
+            }
+
             // Search all strings in the KDBX entry
             if (searchParameters.searchInTitles) {
                 if (checkSearchQuery(entry.title, searchParameters))
                     return true
             }
-            if (searchParameters.searchInUserNames) {
+            if (searchParameters.searchInUsernames) {
                 if (checkSearchQuery(entry.username, searchParameters))
                     return true
             }
@@ -159,8 +208,8 @@ class SearchHelper {
                     return true
             }
             if (searchParameters.searchInUUIDs) {
-                val hexString = UuidUtil.toHexString(entry.nodeId.id)
-                if (hexString != null && hexString.contains(searchQuery, true))
+                val hexString = UuidUtil.toHexString(entry.nodeId.id) ?: ""
+                if (checkSearchQuery(hexString, searchParameters))
                     return true
             }
             if (searchParameters.searchInOther) {
@@ -172,21 +221,31 @@ class SearchHelper {
                     }
                 }
             }
+            if (searchParameters.searchInTags) {
+                if (checkSearchQuery(entry.tags.toString(), searchParameters))
+                    return true
+            }
             return false
         }
 
         private fun checkSearchQuery(stringToCheck: String, searchParameters: SearchParameters): Boolean {
             /*
             // TODO Search settings
-            var regularExpression = false
-            var ignoreCase = true
             var removeAccents = true <- Too much time, to study
-            var excludeExpired = false
-            var searchOnlyInCurrentGroup = false
             */
-            return stringToCheck.isNotEmpty()
-                    && stringToCheck.contains(
-                        searchParameters.searchQuery, true)
+            if (stringToCheck.isEmpty())
+                return false
+            return if (searchParameters.isRegex) {
+                val regex = if (searchParameters.caseSensitive) {
+                    searchParameters.searchQuery.toRegex(RegexOption.DOT_MATCHES_ALL)
+                } else {
+                    searchParameters.searchQuery
+                        .toRegex(setOf(RegexOption.DOT_MATCHES_ALL, RegexOption.IGNORE_CASE))
+                }
+                regex.matches(stringToCheck)
+            } else {
+                stringToCheck.contains(searchParameters.searchQuery, !searchParameters.caseSensitive)
+            }
         }
     }
 }

app/src/main/java/com/kunzisoft/keepass/database/search/SearchParameters.kt

@@ -19,21 +19,82 @@
  */
 package com.kunzisoft.keepass.database.search
 
+import android.os.Parcel
+import android.os.Parcelable
+
 /**
  * Parameters for searching strings in the database.
  */
-class SearchParameters {
+class SearchParameters() : Parcelable{
     var searchQuery: String = ""
+    var caseSensitive = false
+    var isRegex = false
 
     var searchInTitles = true
-    var searchInUserNames = true
+    var searchInUsernames = true
     var searchInPasswords = false
     var searchInUrls = true
+    var excludeExpired = false
     var searchInNotes = true
     var searchInOTP = false
     var searchInOther = true
     var searchInUUIDs = false
-    var searchInTags = true
+    var searchInTags = false
 
+    var searchInCurrentGroup = false
+    var searchInSearchableGroup = true
+    var searchInRecycleBin = false
     var searchInTemplates = false
+
+    constructor(parcel: Parcel) : this() {
+        searchQuery = parcel.readString() ?: searchQuery
+        caseSensitive = parcel.readByte() != 0.toByte()
+        searchInTitles = parcel.readByte() != 0.toByte()
+        searchInUsernames = parcel.readByte() != 0.toByte()
+        searchInPasswords = parcel.readByte() != 0.toByte()
+        searchInUrls = parcel.readByte() != 0.toByte()
+        excludeExpired = parcel.readByte() != 0.toByte()
+        searchInNotes = parcel.readByte() != 0.toByte()
+        searchInOTP = parcel.readByte() != 0.toByte()
+        searchInOther = parcel.readByte() != 0.toByte()
+        searchInUUIDs = parcel.readByte() != 0.toByte()
+        searchInTags = parcel.readByte() != 0.toByte()
+        searchInCurrentGroup = parcel.readByte() != 0.toByte()
+        searchInSearchableGroup = parcel.readByte() != 0.toByte()
+        searchInRecycleBin = parcel.readByte() != 0.toByte()
+        searchInTemplates = parcel.readByte() != 0.toByte()
+    }
+
+    override fun writeToParcel(parcel: Parcel, flags: Int) {
+        parcel.writeString(searchQuery)
+        parcel.writeByte(if (caseSensitive) 1 else 0)
+        parcel.writeByte(if (searchInTitles) 1 else 0)
+        parcel.writeByte(if (searchInUsernames) 1 else 0)
+        parcel.writeByte(if (searchInPasswords) 1 else 0)
+        parcel.writeByte(if (searchInUrls) 1 else 0)
+        parcel.writeByte(if (excludeExpired) 1 else 0)
+        parcel.writeByte(if (searchInNotes) 1 else 0)
+        parcel.writeByte(if (searchInOTP) 1 else 0)
+        parcel.writeByte(if (searchInOther) 1 else 0)
+        parcel.writeByte(if (searchInUUIDs) 1 else 0)
+        parcel.writeByte(if (searchInTags) 1 else 0)
+        parcel.writeByte(if (searchInCurrentGroup) 1 else 0)
+        parcel.writeByte(if (searchInSearchableGroup) 1 else 0)
+        parcel.writeByte(if (searchInRecycleBin) 1 else 0)
+        parcel.writeByte(if (searchInTemplates) 1 else 0)
+    }
+
+    override fun describeContents(): Int {
+        return 0
+    }
+
+    companion object CREATOR : Parcelable.Creator<SearchParameters> {
+        override fun createFromParcel(parcel: Parcel): SearchParameters {
+            return SearchParameters(parcel)
+        }
+
+        override fun newArray(size: Int): Array<SearchParameters?> {
+            return arrayOfNulls(size)
+        }
+    }
 }