require authentication for backup password change

lib/src/localization/generated/app_localizations.dart

@@ -1604,6 +1604,18 @@ abstract class AppLocalizations {
   /// **'Change password'**
   String get backupChangePassword;
 
+  /// No description provided for @backupChangePasswordAuthReason.
+  ///
+  /// In en, this message translates to:
+  /// **'Changing backup password'**
+  String get backupChangePasswordAuthReason;
+
+  /// No description provided for @backupChangePasswordAuthFailed.
+  ///
+  /// In en, this message translates to:
+  /// **'You can only change your password after you have authenticated!'**
+  String get backupChangePasswordAuthFailed;
+
   /// No description provided for @twonlySafeRecoverTitle.
   ///
   /// In en, this message translates to:

lib/src/localization/generated/app_localizations_de.dart

@@ -841,7 +841,14 @@ class AppLocalizationsDe extends AppLocalizations {
   String get backupTwonlySaveNow => 'Jetzt speichern';
 
   @override
-  String get backupChangePassword => 'Password ändern';
+  String get backupChangePassword => 'Passwort ändern';
+
+  @override
+  String get backupChangePasswordAuthReason => 'Backup-Passwort ändern';
+
+  @override
+  String get backupChangePasswordAuthFailed =>
+      'Du kannst dein Passwort nur ändern, wenn du dich authentifiziert hast!';
 
   @override
   String get twonlySafeRecoverTitle => 'Backup wiederherstellen';

lib/src/localization/generated/app_localizations_en.dart

@@ -838,6 +838,13 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get backupChangePassword => 'Change password';
 
+  @override
+  String get backupChangePasswordAuthReason => 'Changing backup password';
+
+  @override
+  String get backupChangePasswordAuthFailed =>
+      'You can only change your password after you have authenticated!';
+
   @override
   String get twonlySafeRecoverTitle => 'Restore backup';
 

lib/src/localization/translations

@@ -1 +1 @@
-Subproject commit 80b21d7e566a12d105f573cb7224b6cdfe37048b
+Subproject commit aa2ac144d3663f476f19ba28ced318b1a64c7a73

lib/src/visual/views/settings/backup/backup_setup.view.dart

@@ -6,6 +6,7 @@ import 'package:twonly/src/services/backup.service.dart';
 import 'package:twonly/src/services/user.service.dart';
 import 'package:twonly/src/utils/misc.dart';
 import 'package:twonly/src/visual/components/alert.dialog.dart';
+import 'package:twonly/src/visual/components/snackbar.dart';
 import 'package:twonly/src/visual/elements/my_button.element.dart';
 import 'package:twonly/src/visual/views/settings/backup/components/backup_setup.comp.dart';
 
@@ -26,7 +27,7 @@ class SetupBackupView extends StatefulWidget {
 class _SetupBackupViewState extends State<SetupBackupView> {
   bool _isLoading = false;
   final TextEditingController _passwordController = TextEditingController();
-  final TextEditingController _repeadedController = TextEditingController();
+  final TextEditingController _repeatedController = TextEditingController();
 
   Future<void> _updateBackupPassword() async {
     setState(() {
@@ -52,6 +53,19 @@ class _SetupBackupViewState extends State<SetupBackupView> {
       }
     }
 
+    if (!mounted) return;
+    final verified = await authenticateUser(
+      context.lang.backupChangePasswordAuthReason,
+    );
+    if (!mounted) return;
+    if (!verified) {
+      showSnackbar(
+        context,
+        context.lang.backupChangePasswordAuthFailed,
+      );
+      return;
+    }
+
     await Future.delayed(const Duration(milliseconds: 100));
     await BackupService.updateBackupPassword(_passwordController.text);
     await UserService.update((u) => u.isBackupEnabled = true);
@@ -108,15 +122,15 @@ class _SetupBackupViewState extends State<SetupBackupView> {
               ),
               const SizedBox(height: 5),
               BackupPasswordTextField(
-                controller: _repeadedController,
+                controller: _repeatedController,
                 labelText: context.lang.passwordRepeated,
                 onChanged: (value) => setState(() {}),
               ),
               PasswordRequirementText(
                 text: context.lang.passwordRepeatedNotEqual,
                 showError:
-                    _passwordController.text != _repeadedController.text &&
-                    _repeadedController.text.isNotEmpty,
+                    _passwordController.text != _repeatedController.text &&
+                    _repeatedController.text.isNotEmpty,
               ),
               const SizedBox(height: 10),
               Text(
@@ -131,7 +145,7 @@ class _SetupBackupViewState extends State<SetupBackupView> {
                   onPressed:
                       (!_isLoading &&
                           (_passwordController.text ==
-                                      _repeadedController.text &&
+                                      _repeatedController.text &&
                                   _passwordController.text.length >= 8 ||
                               !kReleaseMode))
                       ? _updateBackupPassword