fix(auth): preserve app unlock state after app restart (#75)

README.md

@@ -125,9 +125,8 @@ can [become a sponsor on GitHub](https://github.com/sponsors/tsutsu3), or
 
 Run these commands as needed whenever you update the images.
 
-1. Run ``flutter clean``
-2. Run ``dart run flutter_launcher_icons`
-3. Run ``dart run flutter_native_splash:create``
+1. Run ``dart run flutter_launcher_icons`
+2. Run ``dart run flutter_native_splash:create``
 
 #### Android
 

analysis_options.yaml

@@ -44,7 +44,7 @@ analyzer:
   errors:
     invalid_annotation_target: ignore
   exclude:
-    - test/**
+    - test/**/*.mocks.dart
     - lib/**/*.g.dart
     - lib/screens/settings/about/about.dart
 

android/app/src/debug/AndroidManifest.xml

@@ -4,4 +4,5 @@
          to allow setting breakpoints, to provide hot reload, etc.
     -->
     <uses-permission android:name="android.permission.INTERNET"/>
+    <uses-permission android:name="android.permission.USE_FINGERPRINT"/>
 </manifest>

android/app/src/main/AndroidManifest.xml

@@ -1,4 +1,6 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <uses-permission android:name="android.permission.INTERNET"/>
+    <uses-permission android:name="android.permission.USE_BIOMETRIC"/>
     <application
         android:label="Pi-hole client"
         android:name="${applicationName}"

android/app/src/main/kotlin/io/github/tsutsu3/pi_hole_client/MainActivity.kt

@@ -1,5 +1,5 @@
 package io.github.tsutsu3.pi_hole_client
 
-import io.flutter.embedding.android.FlutterActivity
+import io.flutter.embedding.android.FlutterFragmentActivity;
 
-class MainActivity: FlutterActivity()
+class MainActivity: FlutterFragmentActivity()

android/app/src/profile/AndroidManifest.xml

@@ -4,4 +4,5 @@
          to allow setting breakpoints, to provide hot reload, etc.
     -->
     <uses-permission android:name="android.permission.INTERNET"/>
+    <uses-permission android:name="android.permission.USE_FINGERPRINT"/>
 </manifest>

ios/Runner/Info.plist

@@ -47,5 +47,7 @@
 		<true/>
 		<key>UIStatusBarHidden</key>
 		<false/>
+		<key>NSFaceIDUsageDescription</key>
+		<string>Why is my app authenticating using face id?</string>
 	</dict>
 </plist>

lib/main.dart

@@ -80,7 +80,9 @@ void main() async {
       configProvider.setBiometricsSupport(canAuthenticateWithBiometrics);
 
       if (canAuthenticateWithBiometrics &&
-          availableBiometrics.contains(BiometricType.fingerprint) == false &&
+          !availableBiometrics.contains(BiometricType.fingerprint) &&
+          !availableBiometrics.contains(BiometricType.strong) &&
+          !availableBiometrics.contains(BiometricType.weak) &&
           dbRepository.appConfig.useBiometricAuth == 1) {
         await configProvider.setUseBiometrics(false);
       }

lib/repository/database.dart

@@ -49,8 +49,8 @@ class DatabaseRepository {
   ///
   /// Throws:
   /// - [Exception] if the initialization fails or the database cannot be accessed.
-  Future<void> initialize() async {
-    final piHoleClientData = await loadDb();
+  Future<void> initialize({String? path}) async {
+    final piHoleClientData = await loadDb(path: path);
     _servers = piHoleClientData.servers;
     _appConfig = piHoleClientData.appConfig;
     _dbInstance = piHoleClientData.dbInstance;
@@ -69,6 +69,10 @@ class DatabaseRepository {
   /// This method is responsible for initializing or opening the database,
   /// ensuring that necessary tables exist, and fetching the required data.
   ///
+  /// Parameters:
+  /// - [path]: The path to the database file. If not provided, the default
+  ///  path 'pi_hole_client.db' will be used.
+  ///
   /// Returns:
   /// - A `Future` that resolves to a [PiHoleClientData] object containing:
   ///   - `servers`: A list of server configurations from the database.
@@ -77,12 +81,12 @@ class DatabaseRepository {
   ///
   /// Throws:
   /// - [Exception] if the database cannot be initialized or data cannot be retrieved.
-  Future<PiHoleClientData> loadDb() async {
+  Future<PiHoleClientData> loadDb({String? path}) async {
     List<ServerDbData>? servers;
     AppDbData? appConfig;
 
     Database db = await openDatabase(
-      'pi_hole_client.db',
+      path ?? 'pi_hole_client.db',
       version: 1,
       onCreate: (Database db, int version) async {
         await db.execute('''
@@ -140,7 +144,7 @@ class DatabaseRepository {
 
         // Load sensitive data from secure storage
         final passCode = await _secureStorage.getValue('passCode');
-        AppDbData.withSecrets(appConfig!, passCode);
+        appConfig = AppDbData.withSecrets(appConfig!, passCode);
 
         // _secureStorage.readAll()
         logger.d((await _secureStorage.readAll()).toString());
@@ -175,6 +179,21 @@ class DatabaseRepository {
     );
   }
 
+  /// Closes the database connection.
+  ///
+  /// This method closes the database connection and releases any resources
+  ///
+  /// Returns:
+  /// - A `Future` that resolves to `true` if the operation is successful.
+  Future<bool> closeDb() async {
+    try {
+      await _dbInstance.close();
+      return true;
+    } catch (e) {
+      return false;
+    }
+  }
+
   /// Saves a new server entry into the database.
   ///
   /// This method adds a new server record to the 'servers' table in the database.
@@ -486,6 +505,11 @@ class DatabaseRepository {
   }) async {
     try {
       if (column == 'passCode') {
+        if (value == null) {
+          await _secureStorage.deleteValue('passCode');
+          return true;
+        }
+
         await _secureStorage.saveValue('passCode', value.toString());
         return true;
       }

lib/repository/secure_storage.dart

@@ -1,7 +1,10 @@
 import 'package:flutter_secure_storage/flutter_secure_storage.dart';
 
 class SecureStorageRepository {
-  final FlutterSecureStorage _secureStorage = const FlutterSecureStorage();
+  final FlutterSecureStorage _secureStorage;
+
+  SecureStorageRepository({FlutterSecureStorage? secureStorage})
+      : _secureStorage = secureStorage ?? const FlutterSecureStorage();
 
   // Save a value securely
   Future<void> saveValue(String key, String value) async {