@tduncan / Cortana / commits / 291ab32

feat: implement secure storage service and add drift and shared_preferences dependencies

abdulmominsakib committed Apr 8, 2026 at 11:33 UTC 291ab3299c89574ace44e49cd449e5dd156d1da4

12 files changed +278 -17

README.md

@@ -5,6 +5,7 @@

5 LocalMind is a premium Flutter mobile application designed to provide a beautiful, fast, and privacy-respecting interface for local LLM servers and cloud providers.

7 ![LocalMind Header Image](docs/cover.webp)

8 +![LocalMind Screenshot](docs/app_screenshots.webp)

10 ## 🚀 Vision

docs/app_screenshots.webp

Binary files /dev/null and b/docs/app_screenshots.webp differ

ios/Podfile.lock

@@ -34,6 +34,8 @@ PODS:

34 - DKImagePickerController/PhotoGallery

35 - Flutter

36 - Flutter (1.0.0)

37 + - flutter_secure_storage (6.0.0):

38 + - Flutter

39 - flutter_tts (0.0.1):

40 - Flutter

41 - haptic_feedback (0.5.1):

@@ -46,6 +48,7 @@ PODS:

48 DEPENDENCIES:

49 - file_picker (from `.symlinks/plugins/file_picker/ios`)

50 - Flutter (from `Flutter`)

51 + - flutter_secure_storage (from `.symlinks/plugins/flutter_secure_storage/ios`)

52 - flutter_tts (from `.symlinks/plugins/flutter_tts/ios`)

53 - haptic_feedback (from `.symlinks/plugins/haptic_feedback/ios`)

@@ -61,6 +64,8 @@ EXTERNAL SOURCES:

64 :path: ".symlinks/plugins/file_picker/ios"

65 Flutter:

66 :path: Flutter

67 + flutter_secure_storage:

68 + :path: ".symlinks/plugins/flutter_secure_storage/ios"

69 flutter_tts:

70 :path: ".symlinks/plugins/flutter_tts/ios"

71 haptic_feedback:

@@ -71,6 +76,7 @@ SPEC CHECKSUMS:

76 DKPhotoGallery: b3834fecb755ee09a593d7c9e389d8b5d6deed60

77 file_picker: b159e0c068aef54932bb15dc9fd1571818edaf49

78 Flutter: cabc95a1d2626b1b06e7179b784ebcf0c0cde467

79 + flutter_secure_storage: d33dac7ae2ea08509be337e775f6b59f1ff45f12

80 flutter_tts: 91ad1884033cd95ef6e9338754adad54f01f090f

81 haptic_feedback: a366a27ec760f0e865651605b95de8a9bb04ef01

82 SDWebImage: e9fc87c1aab89a8ab1bbd74eba378c6f53be8abf

lib/core/providers/storage_providers.dart

+3 -6

@@ -20,24 +20,21 @@ final conversationsBoxProvider = Provider<Box<Conversation>>((ref) {

20 return boxes.conversations;

21 });

23 -final conversationsProvider = Provider<List<Conversation>>((ref) {

23 +final directBoxConversationsProvider = Provider<List<Conversation>>((ref) {

24 final box = ref.watch(conversationsBoxProvider);

25 final conversations = box.values.toList();

26 conversations.sort((a, b) => b.updatedAt.compareTo(a.updatedAt));

27 return conversations;

28 });

30 -final recentConversationsProvider = Provider<List<Conversation>>((ref) {

31 - final all = ref.watch(conversationsProvider);

32 - return all.take(3).toList();

33 -});

30 +

32 final personasBoxProvider = Provider<Box<Persona>>((ref) {

33 final boxes = ref.watch(hiveBoxesProvider);

34 return boxes.personas;

35 });

40 -final personasProvider = Provider<List<Persona>>((ref) {

37 +final directBoxPersonasProvider = Provider<List<Persona>>((ref) {

38 final box = ref.watch(personasBoxProvider);

39 return box.values.toList();

40 });

lib/core/storage/hive_initializer.dart

+24 -5

@@ -7,6 +7,7 @@ import 'package:localmind/features/personas/data/models/persona.dart';

7 import 'package:localmind/features/settings/data/models/app_settings.dart';

8 import 'package:localmind/core/models/enums.dart';

9 import 'hive_keys.dart';

10 +import 'secure_storage_service.dart';

12 class HiveBoxes {

13 final Box<Server> servers;

@@ -41,13 +42,17 @@ class HiveInitializer {

42 Hive.registerAdapter(ThemeModeAdapter());

43 Hive.registerAdapter(SyntaxThemeNameAdapter());

44 - final servers = await Hive.openBox<Server>(HiveKeys.servers);

45 - final messages = await Hive.openBox<Message>(HiveKeys.messages);

46 - final conversations = await Hive.openBox<Conversation>(

45 + final encryptionKey = await SecureStorageService.getOrGenerateKey();

46 + final cipher = HiveAesCipher(encryptionKey);

47 +

48 + final servers = await _openEncryptedBox<Server>(HiveKeys.servers, cipher);

49 + final messages = await _openEncryptedBox<Message>(HiveKeys.messages, cipher);

50 + final conversations = await _openEncryptedBox<Conversation>(

51 HiveKeys.conversations,

52 + cipher,

53 );

49 - final personas = await Hive.openBox<Persona>(HiveKeys.personas);

50 - final settings = await Hive.openBox<dynamic>(HiveKeys.settings);

54 + final personas = await _openEncryptedBox<Persona>(HiveKeys.personas, cipher);

55 + final settings = await _openEncryptedBox<dynamic>(HiveKeys.settings, cipher);

57 return HiveBoxes(

58 servers: servers,

@@ -57,4 +62,18 @@ class HiveInitializer {

62 settings: settings,

63 );

64 }

65 +

66 + static Future<Box<T>> _openEncryptedBox<T>(

67 + String name,

68 + HiveAesCipher cipher,

69 + ) async {

70 + try {

71 + return await Hive.openBox<T>(name, encryptionCipher: cipher);

72 + } catch (e) {

73 + // If opening fails (likely due to encryption mismatch),

74 + // delete the box and start fresh.

75 + await Hive.deleteBoxFromDisk(name);

76 + return await Hive.openBox<T>(name, encryptionCipher: cipher);

77 + }

78 + }

79 }

lib/core/storage/secure_storage_service.dart new

+32

@@ -0,0 +1,32 @@

1 +import 'dart:convert';

2 +import 'dart:typed_data';

3 +import 'package:flutter_secure_storage/flutter_secure_storage.dart';

4 +import 'package:hive_ce/hive.dart';

5 +

6 +class SecureStorageService {

7 + static const _storage = FlutterSecureStorage();

8 + static const _keyName = 'hive_encryption_key_v1';

9 +

10 + /// Returns the encryption key as a Uint8List.

11 + /// If no key exists, it generates a new one and saves it.

12 + static Future<Uint8List> getOrGenerateKey() async {

13 + final encryptionKeyString = await _storage.read(key: _keyName);

14 +

15 + if (encryptionKeyString == null) {

16 + final key = Hive.generateSecureKey();

17 + await _storage.write(

18 + key: _keyName,

19 + value: base64UrlEncode(key),

20 + );

21 + return Uint8List.fromList(key);

22 + }

23 +

24 + return base64Url.decode(encryptionKeyString);

25 + }

26 +

27 + /// Clears the encryption key.

28 + /// CAUTION: This will make all existing encrypted data unreadable.

29 + static Future<void> clearKey() async {

30 + await _storage.delete(key: _keyName);

31 + }

32 +}

lib/features/chat/providers/chat_providers.dart

+12 -1

@@ -727,10 +727,21 @@ class ChatNotifier extends Notifier<ChatState> {

727 .renameConversation(_currentConversationId!, title);

728 }

729

730 - void cancelStream() {

730 + Future<void> cancelStream() async {

731 _streamSubscription?.cancel();

732 _streamSubscription = null;

733 ref.read(chatServiceProvider).cancelStream();

734 +

735 + final streamingMessage = state.streamingMessage;

736 + if (streamingMessage != null) {

737 + final boxes = ref.read(hiveBoxesProvider);

738 + final finalMessage = streamingMessage.copyWith(

739 + status: MessageStatus.complete,

740 + isProcessing: false,

741 + );

742 + await boxes.messages.put(finalMessage.id, finalMessage);

743 + }

744 +

745 state = state.copyWith(isStreaming: false, clearStreaming: true);

746 }

747

lib/features/chat/views/chat_screen.dart

+1 -1

@@ -218,7 +218,7 @@ class _ChatScreenState extends ConsumerState<ChatScreen> {

218 ref.read(chatProvider.notifier).sendMessage(prompt),

219 quickPrompts: _quickPrompts,

220 recentConversations: ref.watch(

221 - recentConversationsProvider,

221 + conv.recentConversationsProvider,

222 ),

223 onSeeAll: () {

224 if (Scaffold.maybeOf(context)?.hasDrawer ?? false) {

lib/features/conversations/providers/conversation_providers.dart

@@ -229,6 +229,11 @@ final filteredConversationsProvider = Provider<List<Conversation>>((ref) {

229 }).toList();

230 });

231

232 +final recentConversationsProvider = Provider<List<Conversation>>((ref) {

233 + final all = ref.watch(conversationsProvider);

234 + return all.take(3).toList();

235 +});

236 +

237 final groupedConversationsProvider = Provider<Map<String, List<Conversation>>>((

238 ref,

239 ) {

lib/features/settings/screens/settings_screen.dart

+2 -1

@@ -7,6 +7,7 @@ import 'package:localmind/core/theme/app_theme.dart';

7 import 'package:localmind/features/conversations/providers/conversation_providers.dart';

8 import 'package:localmind/features/servers/providers/server_providers.dart';

9 import 'package:localmind/features/settings/data/models/app_settings.dart';

10 +import 'package:localmind/features/personas/providers/personas_providers.dart';

12 class SettingsScreen extends ConsumerWidget {

13 const SettingsScreen({super.key});

@@ -161,7 +162,7 @@ class SettingsScreen extends ConsumerWidget {

162 label: 'Default Persona',

163 currentValue: settings.defaultPersonaId,

164 items: ref

164 - .watch(storage.personasProvider)

165 + .watch(personasNotifierProvider)

166 .map((p) => (p.id, '${p.emoji} ${p.name}'))

167 .toList(),

168 onChanged: (v) =>

pubspec.lock

+186 -2

@@ -121,6 +121,14 @@ packages:

121 url: "https://pub.dev"

122 source: hosted

123 version: "1.4.1"

124 + charcode:

125 + dependency: transitive

126 + description:

127 + name: charcode

128 + sha256: fb0f1107cac15a5ea6ef0a6ef71a807b9e4267c713bb93e00e92d737cc8dbd8a

129 + url: "https://pub.dev"

130 + source: hosted

131 + version: "1.4.0"

132 checked_yaml:

133 dependency: transitive

134 description:

@@ -137,6 +145,14 @@ packages:

145 url: "https://pub.dev"

146 source: hosted

147 version: "0.2.0"

148 + cli_util:

149 + dependency: transitive

150 + description:

151 + name: cli_util

152 + sha256: ff6785f7e9e3c38ac98b2fb035701789de90154024a75b6cb926445e83197d1c

153 + url: "https://pub.dev"

154 + source: hosted

155 + version: "0.4.2"

156 clock:

157 dependency: transitive

158 description:

@@ -241,6 +257,30 @@ packages:

257 url: "https://pub.dev"

258 source: hosted

259 version: "2.1.2"

260 + drift:

261 + dependency: "direct main"

262 + description:

263 + name: drift

264 + sha256: "055c249d1f91be5a47fe447f88afc24c4ca6f4cd6c5ed66767b4797d48acc2e5"

265 + url: "https://pub.dev"

266 + source: hosted

267 + version: "2.32.1"

268 + drift_dev:

269 + dependency: "direct dev"

270 + description:

271 + name: drift_dev

272 + sha256: "88a9de3af8571518148a6d8a513b57779fd1e60a026d3ab8a481a878fba01d91"

273 + url: "https://pub.dev"

274 + source: hosted

275 + version: "2.32.1"

276 + drift_flutter:

277 + dependency: "direct main"

278 + description:

279 + name: drift_flutter

280 + sha256: "887fdec622174dc7eaefd0048403e34ee07cc18626ac8a7544cc3b8a4a172166"

281 + url: "https://pub.dev"

282 + source: hosted

283 + version: "0.3.0"

284 extended_image:

285 dependency: transitive

286 description:

@@ -347,6 +387,54 @@ packages:

387 url: "https://pub.dev"

388 source: hosted

389 version: "3.3.1"

390 + flutter_secure_storage:

391 + dependency: "direct main"

392 + description:

393 + name: flutter_secure_storage

394 + sha256: "9cad52d75ebc511adfae3d447d5d13da15a55a92c9410e50f67335b6d21d16ea"

395 + url: "https://pub.dev"

396 + source: hosted

397 + version: "9.2.4"

398 + flutter_secure_storage_linux:

399 + dependency: transitive

400 + description:

401 + name: flutter_secure_storage_linux

402 + sha256: be76c1d24a97d0b98f8b54bce6b481a380a6590df992d0098f868ad54dc8f688

403 + url: "https://pub.dev"

404 + source: hosted

405 + version: "1.2.3"

406 + flutter_secure_storage_macos:

407 + dependency: transitive

408 + description:

409 + name: flutter_secure_storage_macos

410 + sha256: "6c0a2795a2d1de26ae202a0d78527d163f4acbb11cde4c75c670f3a0fc064247"

411 + url: "https://pub.dev"

412 + source: hosted

413 + version: "3.1.3"

414 + flutter_secure_storage_platform_interface:

415 + dependency: transitive

416 + description:

417 + name: flutter_secure_storage_platform_interface

418 + sha256: cf91ad32ce5adef6fba4d736a542baca9daf3beac4db2d04be350b87f69ac4a8

419 + url: "https://pub.dev"

420 + source: hosted

421 + version: "1.1.2"

422 + flutter_secure_storage_web:

423 + dependency: transitive

424 + description:

425 + name: flutter_secure_storage_web

426 + sha256: f4ebff989b4f07b2656fb16b47852c0aab9fed9b4ec1c70103368337bc1886a9

427 + url: "https://pub.dev"

428 + source: hosted

429 + version: "1.2.1"

430 + flutter_secure_storage_windows:

431 + dependency: transitive

432 + description:

433 + name: flutter_secure_storage_windows

434 + sha256: b20b07cb5ed4ed74fc567b78a72936203f587eba460af1df11281c9326cd3709

435 + url: "https://pub.dev"

436 + source: hosted

437 + version: "3.1.2"

438 flutter_shaders:

439 dependency: transitive

440 description:

@@ -537,10 +625,10 @@ packages:

625 dependency: transitive

626 description:

627 name: js

540 - sha256: "53385261521cc4a0c4658fd0ad07a7d14591cf8fc33abbceae306ddb974888dc"

628 + sha256: f2c445dce49627136094980615a031419f7f3eb393237e4ecd97ac15dea343f3

629 url: "https://pub.dev"

630 source: hosted

543 - version: "0.7.2"

631 + version: "0.6.7"

632 json_annotation:

633 dependency: transitive

634 description:

@@ -789,6 +877,14 @@ packages:

877 url: "https://pub.dev"

878 source: hosted

879 version: "1.5.0"

880 + recase:

881 + dependency: transitive

882 + description:

883 + name: recase

884 + sha256: e4eb4ec2dcdee52dcf99cb4ceabaffc631d7424ee55e56f280bc039737f89213

885 + url: "https://pub.dev"

886 + source: hosted

887 + version: "4.1.0"

888 riverpod:

889 dependency: transitive

890 description:

@@ -813,6 +909,62 @@ packages:

909 url: "https://pub.dev"

910 source: hosted

911 version: "0.53.3"

912 + shared_preferences:

913 + dependency: "direct main"

914 + description:

915 + name: shared_preferences

916 + sha256: c3025c5534b01739267eb7d76959bbc25a6d10f6988e1c2a3036940133dd10bf

917 + url: "https://pub.dev"

918 + source: hosted

919 + version: "2.5.5"

920 + shared_preferences_android:

921 + dependency: transitive

922 + description:

923 + name: shared_preferences_android

924 + sha256: e8d4762b1e2e8578fc4d0fd548cebf24afd24f49719c08974df92834565e2c53

925 + url: "https://pub.dev"

926 + source: hosted

927 + version: "2.4.23"

928 + shared_preferences_foundation:

929 + dependency: transitive

930 + description:

931 + name: shared_preferences_foundation

932 + sha256: "4e7eaffc2b17ba398759f1151415869a34771ba11ebbccd1b0145472a619a64f"

933 + url: "https://pub.dev"

934 + source: hosted

935 + version: "2.5.6"

936 + shared_preferences_linux:

937 + dependency: transitive

938 + description:

939 + name: shared_preferences_linux

940 + sha256: "580abfd40f415611503cae30adf626e6656dfb2f0cee8f465ece7b6defb40f2f"

941 + url: "https://pub.dev"

942 + source: hosted

943 + version: "2.4.1"

944 + shared_preferences_platform_interface:

945 + dependency: transitive

946 + description:

947 + name: shared_preferences_platform_interface

948 + sha256: "649dc798a33931919ea356c4305c2d1f81619ea6e92244070b520187b5140ef9"

949 + url: "https://pub.dev"

950 + source: hosted

951 + version: "2.4.2"

952 + shared_preferences_web:

953 + dependency: transitive

954 + description:

955 + name: shared_preferences_web

956 + sha256: c49bd060261c9a3f0ff445892695d6212ff603ef3115edbb448509d407600019

957 + url: "https://pub.dev"

958 + source: hosted

959 + version: "2.4.3"

960 + shared_preferences_windows:

961 + dependency: transitive

962 + description:

963 + name: shared_preferences_windows

964 + sha256: "94ef0f72b2d71bc3e700e025db3710911bd51a71cefb65cc609dd0d9a982e3c1"

965 + url: "https://pub.dev"

966 + source: hosted

967 + version: "2.4.1"

968 shelf:

969 dependency: transitive

970 description:

@@ -906,6 +1058,38 @@ packages:

1058 url: "https://pub.dev"

1059 source: hosted

1060 version: "1.10.2"

1061 + sqlcipher_flutter_libs:

1062 + dependency: transitive

1063 + description:

1064 + name: sqlcipher_flutter_libs

1065 + sha256: "38d62d659d2fb8739bf25a42c9a350d1fdd6c29a5a61f13a946778ec75d27929"

1066 + url: "https://pub.dev"

1067 + source: hosted

1068 + version: "0.7.0+eol"

1069 + sqlite3:

1070 + dependency: transitive

1071 + description:

1072 + name: sqlite3

1073 + sha256: b3fe250b4ebd681a8ba20b12794c42b00c1375e5b51005568f0b8731265beb03

1074 + url: "https://pub.dev"

1075 + source: hosted

1076 + version: "3.3.0"

1077 + sqlite3_flutter_libs:

1078 + dependency: transitive

1079 + description:

1080 + name: sqlite3_flutter_libs

1081 + sha256: "3ed7553eee7bb368f8950f58ba29f634e06e813c029aff6a0d60862b96de8454"

1082 + url: "https://pub.dev"

1083 + source: hosted

1084 + version: "0.6.0+eol"

1085 + sqlparser:

1086 + dependency: transitive

1087 + description:

1088 + name: sqlparser

1089 + sha256: ab2b467425f1d4f3acfa5fd11a08226f7d6c26ff102c06be1807e1dff34e050b

1090 + url: "https://pub.dev"

1091 + source: hosted

1092 + version: "0.44.3"

1093 stack_trace:

1094 dependency: transitive

1095 description:

pubspec.yaml

+6 -1

@@ -16,7 +16,7 @@ publish_to: "none" # Remove this line if you wish to publish to pub.dev

16 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html

17 # In Windows, build-name is used as the major, minor, and patch parts

18 # of the product and file versions while build-number is used as the build suffix.

19 -version: 1.0.0+5

19 +version: 1.0.0+6

21 environment:

22 sdk: ^3.11.0

@@ -40,6 +40,7 @@ dependencies:

40 hive_ce_flutter: ^2.3.4

41 shadcn_ui: ^0.53.3

42 dio: ^5.9.2

43 + flutter_secure_storage: ^9.2.3

44 flutter_markdown_plus: ^1.0.7

45 flutter_tts: ^4.2.5

46 file_picker: ^10.3.10

@@ -50,6 +51,9 @@ dependencies:

51 flutter_syntax_view: 4.1.7

52 animations: 2.1.2

53 logger: ^2.7.0

54 + drift: ^2.32.1

55 + drift_flutter: ^0.3.0

56 + shared_preferences: ^2.5.5

58 dev_dependencies:

59 flutter_test:

@@ -64,6 +68,7 @@ dev_dependencies:

68 build_runner: ^2.13.1

69 hive_ce_generator: ^1.11.1

70 change_app_package_name: ^1.4.0

71 + drift_dev: ^2.32.1

73 # For information on the generic Dart part of this file, see the

74 # following page: https://dart.dev/tools/pub/pubspec