together_mobile/lib/database/hive_database.dart

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import 'dart:convert';
import 'package:hive_flutter/hive_flutter.dart';
import 'package:flutter_secure_storage/flutter_secure_storage.dart';
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import 'package:together_mobile/database/box_type.dart';
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import 'package:together_mobile/models/init_get_it.dart';
import 'package:together_mobile/models/user_model.dart';
import 'package:together_mobile/utils/app_dir.dart';
void initDatabase() async {
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List<int> encryptionKeyUint8List = await getEncryptKey();
await Hive.initFlutter(await getBoxDir());
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Box<ChatSetting> chatSettingBox =
await Hive.openBox<ChatSetting>('chat_setting');
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final openedChats = chatSettingBox.values.where((element) => element.isOpen);
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for (var chatBox in openedChats) {
Hive.openBox<MessageT>(
'message_${chatBox.contactId}',
encryptionCipher: HiveAesCipher(encryptionKeyUint8List),
compactionStrategy: (entries, deletedEntries) => entries > 200,
);
}
}
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void registerAdapter() {
Hive.registerAdapter(ChatSettingAdapter());
Hive.registerAdapter(MessageTAdapter());
}
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Future<List<int>> getEncryptKey() async {
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final id = getIt.get<UserAccount>().id;
const secureStorage = FlutterSecureStorage();
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final encryptionKeyString = await secureStorage.read(key: 'encryptKey:$id');
if (encryptionKeyString == null) {
final key = Hive.generateSecureKey();
await secureStorage.write(
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key: 'encryptKey:$id',
value: base64Encode(key),
);
}
// String? key = await secureStorage.read(key: 'encryptKey:$id');
final encryptionKeyUint8List = base64Url.decode(encryptionKeyString!);
return encryptionKeyUint8List;
}
Future<void> openNewMessageBox(String contactId, int type) async {
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final encryptionKeyUint8List = await getEncryptKey();
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var chatSettingBox = Hive.box<ChatSetting>('chat_setting');
chatSettingBox.add(
ChatSetting(contactId, type, false, false, false, DateTime.now(), 0));
await Hive.openBox<MessageT>(
'message_$contactId',
encryptionCipher: HiveAesCipher(encryptionKeyUint8List),
compactionStrategy: (entries, deletedEntries) => entries > 200,
);
}