[flutter_example_packages] Add crypto, flutter_secure_storage

example/lib/l10n/app_en.arb

@@ -61,8 +61,14 @@
   "flutterLocalNotificationsBtn": "Send",
 
   "@_FLUTTER_SECURE_STORAGE": {},
-  "flutterSecureStorageTitle": "Title",
+  "flutterSecureStorageSuccess": "Data saved successfully",
-  "flutterSecureStorageDesc": "Desc",
+  "flutterSecureStorageTitleSave": "Save value",
+  "flutterSecureStorageTitleGet": "Get value",
+  "flutterSecureStorageFieldPass": "Password",
+  "flutterSecureStorageFieldKey": "Key",
+  "flutterSecureStorageFieldValue": "Value",
+  "flutterSecureStorageBtnSave": "Save value",
+  "flutterSecureStorageBtnGet": "Get value",
 
   "@_PACKAGE_INFO_PLUS": {},
   "packageInfoPlusTitlePackageName": "Package",

example/lib/l10n/app_ru.arb

@@ -61,8 +61,14 @@
   "flutterLocalNotificationsBtn": "Отправить",
 
   "@_FLUTTER_SECURE_STORAGE": {},
-  "flutterSecureStorageTitle": "Заголовок",
+  "flutterSecureStorageSuccess": "Данные успешно сохранены",
-  "flutterSecureStorageDesc": "Описание",
+  "flutterSecureStorageTitleSave": "Сохранить значение",
+  "flutterSecureStorageTitleGet": "Получить значение",
+  "flutterSecureStorageFieldPass": "Пароль",
+  "flutterSecureStorageFieldKey": "Ключ",
+  "flutterSecureStorageFieldValue": "Значение",
+  "flutterSecureStorageBtnSave": "Сохранить значение",
+  "flutterSecureStorageBtnGet": "Получить значение",
 
   "@_PACKAGE_INFO_PLUS": {},
   "packageInfoPlusTitlePackageName": "Пакет",

example/lib/packages/crypto/package.dart

@@ -0,0 +1,22 @@
+import 'package:flutter_example_packages/base/package/package_dialog.dart';
+
+/// Package values
+final packageCrypto = PackageDialog(
+  key: 'crypto',
+  descEN: '''
+    A set of cryptographic hashing functions for Dart.
+    ''',
+  descRU: '''
+    Набор криптографических функций хеширования для Dart.
+    ''',
+  messageEN: '''
+  This is a platform independent plugin used in this app, should work 
+  for you too.
+  ''',
+  messageRU: '''
+  Это плагин независимый от платформы, используется в этом приложении, 
+  должен работать и у вас.
+  ''',
+  version: '3.0.2',
+  isPlatformDependent: false,
+);

example/lib/packages/flutter_local_notifications/page.dart

@@ -53,7 +53,7 @@ class _FlutterLocalNotificationsPageState
                           hintText: l10n.flutterLocalNotificationsHintTitle,
                         ),
                       ),
-                      const SizedBox(height: 18),
+                      const SizedBox(height: 16),
                       TextField(
                         controller: _bodyController,
                         decoration: InputDecoration(

example/lib/packages/flutter_secure_storage/model.dart

@@ -1,10 +1,18 @@
+import 'dart:convert';
+
+import 'package:crypto/crypto.dart';
 import 'package:flutter/widgets.dart';
+import 'package:flutter_secure_storage/flutter_secure_storage.dart';
+import 'package:flutter_secure_storage_aurora/flutter_secure_storage_aurora.dart';
 import 'package:scoped_model/scoped_model.dart';
 
 /// Model for [FlutterSecureStoragePage]
 class FlutterSecureStorageModel extends Model {
   /// Get [ScopedModel]
-  static FlutterSecureStorageModel of(BuildContext context) => ScopedModel.of<FlutterSecureStorageModel>(context);
+  static FlutterSecureStorageModel of(BuildContext context) =>
+      ScopedModel.of<FlutterSecureStorageModel>(context);
+
+  final _secureStorage = const FlutterSecureStorage();
 
   /// Error
   String? _error;
@@ -14,4 +22,84 @@ class FlutterSecureStorageModel extends Model {
 
   /// Public is error
   bool get isError => _error != null;
+
+  /// Save success
+  bool _isSuccess = false;
+
+  /// Public success
+  bool get isSuccess => _isSuccess;
+
+  /// Value for read form secure storage
+  String _readValue = "";
+
+  /// Public read value
+  String get readValue => _readValue;
+
+  // Get data from secure storage
+  Future<void> read({
+    required String key,
+    required String password,
+  }) async {
+    try {
+      // Update secret key
+      _updateByPassword(password);
+      // Read data
+      _readValue = await _secureStorage.read(key: key) ?? "Not found";
+    } catch (e) {
+      _readValue = "Error password";
+    }
+    notifyListeners();
+  }
+
+  // Write new data in secure storage
+  Future<void> write({
+    required String key,
+    required String value,
+    required String password,
+  }) async {
+    try {
+      // Update secret key
+      _updateByPassword(password);
+      // Clear old data
+      await _secureStorage.deleteAll();
+      // Save new data
+      await _secureStorage.write(key: key, value: value);
+      // Show success
+      _isSuccess = true;
+      // Close success
+      Future.delayed(const Duration(milliseconds: 1500), () {
+        _isSuccess = false;
+        notifyListeners();
+      });
+    } catch (e) {
+      _error = e.toString();
+    }
+    notifyListeners();
+  }
+
+  /// Update password
+  void _updateByPassword(
+    String password,
+  ) {
+    // https://pub.dev/packages/encrypt
+    // Encrypter(AES(key))
+    // secure-random --length 16 --base 16
+    // You can generate a secret key based on user data, as an example of a hash pin-code
+    FlutterSecureStorageAurora.setSecret(
+      _getPasswordFromString(password),
+    );
+  }
+
+  /// Generate secure key 32 length from string password
+  String _getPasswordFromString(
+    String password,
+  ) {
+    return md5.convert(utf8.encode(password)).toString();
+  }
+
+  /// Clear value if change values
+  void clearReadValue() {
+    _readValue = "";
+    notifyListeners();
+  }
 }

example/lib/packages/flutter_secure_storage/page.dart

@@ -5,8 +5,8 @@ import 'package:flutter_example_packages/packages/flutter_secure_storage/package
 import 'package:flutter_example_packages/widgets/base/export.dart';
 import 'package:flutter_example_packages/widgets/blocks/block_alert.dart';
 import 'package:flutter_example_packages/widgets/blocks/block_info_package.dart';
-import 'package:flutter_example_packages/widgets/blocks/block_item.dart';
 import 'package:flutter_example_packages/widgets/layouts/block_layout.dart';
+import 'package:flutter_example_packages/widgets/texts/export.dart';
 import 'package:flutter_gen/gen_l10n/app_localizations.dart';
 
 class FlutterSecureStoragePage extends AppStatefulWidget {
@@ -23,6 +23,31 @@ class FlutterSecureStoragePage extends AppStatefulWidget {
 
 class _FlutterSecureStoragePageState
     extends AppState<FlutterSecureStoragePage> {
+  bool _isValidSave = false;
+  final TextEditingController _passSaveController = TextEditingController();
+  final TextEditingController _keySaveController = TextEditingController();
+  final TextEditingController _valueSaveController = TextEditingController();
+
+  bool _isValidGet = false;
+  final TextEditingController _passGetController = TextEditingController();
+  final TextEditingController _keyGetController = TextEditingController();
+  final TextEditingController _valueGetController = TextEditingController();
+
+  void _validateSave() {
+    setState(() {
+      _isValidSave = _passSaveController.text.isNotEmpty &&
+          _keySaveController.text.isNotEmpty &&
+          _valueSaveController.text.isNotEmpty;
+    });
+  }
+
+  void _validateGet() {
+    setState(() {
+      _isValidGet = _passGetController.text.isNotEmpty &&
+          _keyGetController.text.isNotEmpty;
+    });
+  }
+
   @override
   Widget buildWide(
     BuildContext context,
@@ -32,6 +57,9 @@ class _FlutterSecureStoragePageState
     return BlockLayout<FlutterSecureStorageModel>(
       title: widget.package.key,
       builder: (context, child, model) {
+        // update read only value
+        _valueGetController.text = model.readValue;
+        // return widget
         return SingleChildScrollView(
           child: Padding(
             padding: const EdgeInsets.all(20),
@@ -44,10 +72,102 @@ class _FlutterSecureStoragePageState
                   Column(
                     crossAxisAlignment: CrossAxisAlignment.start,
                     children: [
-                      BlockItem(
+                      TextTitleLarge(l10n.flutterSecureStorageTitleSave),
-                        title: l10n.flutterSecureStorageTitle,
+                      const SizedBox(height: 14),
-                        desc: l10n.flutterSecureStorageDesc,
+                      if (model.isSuccess)
-                        value: null,
+                        BlockAlert(
+                          l10n.flutterSecureStorageSuccess,
+                          color: Colors.lightGreen,
+                        ),
+                      const SizedBox(height: 6),
+                      TextField(
+                        controller: _passSaveController,
+                        decoration: InputDecoration(
+                          labelText: l10n.flutterSecureStorageFieldPass,
+                        ),
+                        onChanged: (_) => _validateSave(),
+                      ),
+                      const SizedBox(height: 16),
+                      TextField(
+                        controller: _keySaveController,
+                        decoration: InputDecoration(
+                          labelText: l10n.flutterSecureStorageFieldKey,
+                        ),
+                        onChanged: (_) => _validateSave(),
+                      ),
+                      const SizedBox(height: 16),
+                      TextField(
+                        controller: _valueSaveController,
+                        decoration: InputDecoration(
+                          labelText: l10n.flutterSecureStorageFieldValue,
+                        ),
+                        onChanged: (_) => _validateSave(),
+                      ),
+                      const SizedBox(height: 20),
+                      SizedBox(
+                        width: double.infinity,
+                        child: ElevatedButton(
+                          onPressed: _isValidSave
+                              ? () => model.write(
+                                    key: _keySaveController.text,
+                                    value: _valueSaveController.text,
+                                    password: _passSaveController.text,
+                                  )
+                              : null,
+                          child: TextBodyLarge(
+                            l10n.flutterSecureStorageBtnSave,
+                            color: Colors.white,
+                          ),
+                        ),
+                      ),
+                      const SizedBox(height: 30),
+                      TextTitleLarge(l10n.flutterSecureStorageTitleGet),
+                      const SizedBox(height: 16),
+                      TextField(
+                        controller: _passGetController,
+                        decoration: InputDecoration(
+                          labelText: l10n.flutterSecureStorageFieldPass,
+                        ),
+                        onChanged: (_) {
+                          _validateGet();
+                          model.clearReadValue();
+                        },
+                      ),
+                      const SizedBox(height: 16),
+                      TextField(
+                        controller: _keyGetController,
+                        decoration: InputDecoration(
+                          labelText: l10n.flutterSecureStorageFieldKey,
+                        ),
+                          onChanged: (_) {
+                            _validateGet();
+                            model.clearReadValue();
+                          }
+                      ),
+                      const SizedBox(height: 16),
+                      TextField(
+                        enabled: false,
+                        readOnly: true,
+                        controller: _valueGetController,
+                        decoration: InputDecoration(
+                          labelText: l10n.flutterSecureStorageFieldValue,
+                        ),
+                      ),
+                      const SizedBox(height: 20),
+                      SizedBox(
+                        width: double.infinity,
+                        child: ElevatedButton(
+                          onPressed: _isValidGet
+                              ? () => model.read(
+                                    key: _keyGetController.text,
+                                    password: _passGetController.text,
+                                  )
+                              : null,
+                          child: TextBodyLarge(
+                            l10n.flutterSecureStorageBtnGet,
+                            color: Colors.white,
+                          ),
+                        ),
                       ),
                     ],
                   ),

example/lib/packages/packages.dart

@@ -18,10 +18,13 @@ import 'package:flutter_example_packages/packages/universal_io/package.dart';
 import 'package:flutter_example_packages/packages/wakelock/package.dart';
 import 'package:flutter_example_packages/packages/xdga_directories/package.dart';
 
+import 'crypto/package.dart';
+
 /// List app packages
 final packages = <Package>[
   packageBatteryPlus,
   packageCachedNetworkImage,
+  packageCrypto,
   packageCupertinoIcons,
   packageDeviceInfoPlus,
   packageFlutterCacheManager,

example/lib/pages/home/widgets/package_list_item.dart

@@ -129,7 +129,7 @@ class PackageListItemWidget extends AppStatelessWidget {
                         child: Padding(
                           padding: const EdgeInsets.only(
                             left: 6,
-                            top: 3,
+                            top: 6,
                             right: 6,
                             bottom: 6,
                           ),

example/pubspec.lock

@@ -22,6 +22,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.4.1"
+  asn1lib:
+    dependency: transitive
+    description:
+      name: asn1lib
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.4.1"
   async:
     dependency: transitive
     description:
@@ -156,7 +163,7 @@ packages:
     source: hosted
     version: "3.1.1"
   crypto:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: crypto
       url: "https://pub.dartlang.org"
@@ -204,6 +211,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "7.0.0"
+  encrypt:
+    dependency: transitive
+    description:
+      name: encrypt
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "5.0.1"
   fake_async:
     dependency: transitive
     description:
@@ -277,6 +291,55 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_secure_storage:
+    dependency: "direct main"
+    description:
+      name: flutter_secure_storage
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "8.0.0"
+  flutter_secure_storage_aurora:
+    dependency: "direct main"
+    description:
+      path: "../packages/flutter_secure_storage/flutter_secure_storage_aurora"
+      relative: true
+    source: path
+    version: "0.0.1"
+  flutter_secure_storage_linux:
+    dependency: transitive
+    description:
+      name: flutter_secure_storage_linux
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.3"
+  flutter_secure_storage_macos:
+    dependency: transitive
+    description:
+      name: flutter_secure_storage_macos
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.0"
+  flutter_secure_storage_platform_interface:
+    dependency: transitive
+    description:
+      name: flutter_secure_storage_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
+  flutter_secure_storage_web:
+    dependency: transitive
+    description:
+      name: flutter_secure_storage_web
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.1"
+  flutter_secure_storage_windows:
+    dependency: transitive
+    description:
+      name: flutter_secure_storage_windows
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.0"
   flutter_test:
     dependency: "direct dev"
     description: flutter
@@ -518,6 +581,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.4"
+  pointycastle:
+    dependency: transitive
+    description:
+      name: pointycastle
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.7.3"
   pool:
     dependency: transitive
     description:

example/pubspec.yaml

@@ -25,6 +25,8 @@ dependencies:
   intl: ^0.17.0
   ## https://pub.dev/packages/universal_io
   universal_io: ^2.2.0
+  ## https://pub.dev/packages/crypto
+  crypto: ^3.0.2
 
   ## https://os-git.omprussia.ru/non-oss/flutter/flutter-plugins/-/tree/master/packages/xdga_directories
   xdga_directories:
@@ -48,11 +50,11 @@ dependencies:
   flutter_local_notifications_aurora:
     path: ../packages/flutter_local_notifications/flutter_local_notifications_aurora
 
-#  ## https://pub.dev/packages/flutter_secure_storage
+  ## https://pub.dev/packages/flutter_secure_storage
-#  flutter_secure_storage: ^8.0.0
+  flutter_secure_storage: ^8.0.0
-#  ## https://os-git.omprussia.ru/non-oss/flutter/flutter-plugins/-/tree/master/packages/flutter_secure_storage/flutter_secure_storage_aurora
+  ## https://os-git.omprussia.ru/non-oss/flutter/flutter-plugins/-/tree/master/packages/flutter_secure_storage/flutter_secure_storage_aurora
-#  flutter_secure_storage_aurora:
+  flutter_secure_storage_aurora:
-#    path: ../packages/flutter_secure_storage/flutter_secure_storage_aurora
+    path: ../packages/flutter_secure_storage/flutter_secure_storage_aurora
 
   ## https://pub.dev/packages/package_info_plus
   package_info_plus: 4.0.2

packages/flutter_secure_storage/flutter_secure_storage_aurora/lib/flutter_secure_storage_aurora.dart

@@ -22,8 +22,7 @@ class FlutterSecureStorageAurora extends FlutterSecureStoragePlatform {
     );
   }
 
-  static void registerWith() async {
+  static void registerWith() {
-    PathProviderAurora.registerWith();
     FlutterSecureStoragePlatform.instance = FlutterSecureStorageAurora();
   }