RhythmBox/lib/services/kv_store/encrypted_kv_store.dart

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import 'package:flutter_secure_storage/flutter_secure_storage.dart';
import 'package:rhythm_box/platform.dart';
import 'package:rhythm_box/services/kv_store/kv_store.dart';
import 'package:uuid/uuid.dart';
abstract class EncryptedKvStoreService {
static const _storage = FlutterSecureStorage(
aOptions: AndroidOptions(
encryptedSharedPreferences: true,
),
);
static FlutterSecureStorage get storage => _storage;
static String? _encryptionKeySync;
static Future<void> initialize() async {
_encryptionKeySync = await encryptionKey;
}
static String get encryptionKeySync => _encryptionKeySync!;
static bool get isUnsupportedPlatform =>
PlatformInfo.isMacOS ||
PlatformInfo.isIOS ||
(PlatformInfo.isLinux && !PlatformInfo.isInFlatpak);
static Future<String> get encryptionKey async {
if (isUnsupportedPlatform) {
return KVStoreService.encryptionKey;
}
try {
final value = await _storage.read(key: 'encryption');
final key = const Uuid().v4();
if (value == null) {
await setEncryptionKey(key);
return key;
}
return value;
} catch (e) {
return KVStoreService.encryptionKey;
}
}
static Future<void> setEncryptionKey(String key) async {
if (isUnsupportedPlatform) {
await KVStoreService.setEncryptionKey(key);
return;
}
try {
await _storage.write(key: 'encryption', value: key);
} catch (e) {
await KVStoreService.setEncryptionKey(key);
} finally {
_encryptionKeySync = key;
}
}
}