haven: backup seeds

lib/entities/default_settings_migration.dart

@@ -1,11 +1,15 @@
 import 'dart:io' show Directory, File, Platform;
 import 'package:cake_wallet/bitcoin/bitcoin.dart';
+import 'package:cake_wallet/core/key_service.dart';
 import 'package:cake_wallet/core/secure_storage.dart';
 import 'package:cake_wallet/entities/exchange_api_mode.dart';
 import 'package:cake_wallet/entities/fiat_api_mode.dart';
+import 'package:cake_wallet/entities/haven_seed_store.dart';
+import 'package:cw_core/cake_hive.dart';
 import 'package:cw_core/pathForWallet.dart';
 import 'package:cake_wallet/entities/secret_store_key.dart';
 import 'package:cw_core/root_dir.dart';
+import 'package:cw_haven/haven_wallet_service.dart';
 import 'package:hive/hive.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import 'package:cake_wallet/entities/preferences_key.dart';
@@ -49,7 +53,8 @@ Future<void> defaultSettingsMigration(
     required Box<Node> powNodes,
     required Box<WalletInfo> walletInfoSource,
     required Box<Trade> tradeSource,
-    required Box<Contact> contactSource}) async {
+    required Box<Contact> contactSource,
+    required Box<HavenSeedStore> havenSeedStore}) async {
   if (Platform.isIOS) {
     await ios_migrate_v1(walletInfoSource, tradeSource, contactSource);
   }
@@ -245,6 +250,9 @@ Future<void> defaultSettingsMigration(
           _fixNodesUseSSLFlag(nodes);
           await changeDefaultNanoNode(nodes, sharedPreferences);
           break;
+        case 40:
+          await _backupHavenSeeds(havenSeedStore);
+
         default:
           break;
       }
@@ -259,6 +267,21 @@ Future<void> defaultSettingsMigration(
   await sharedPreferences.setInt(PreferencesKey.currentDefaultSettingsMigrationVersion, version);
 }
 
+Future<void> _backupHavenSeeds(Box<HavenSeedStore> havenSeedStore) async {
+  final walletInfoSource = await CakeHive.openBox<WalletInfo>(WalletInfo.boxName);
+  final wallets = walletInfoSource.values
+    .where((element) => element.type == WalletType.haven);
+  for (var w in wallets) {
+    final walletService = HavenWalletService(walletInfoSource);
+    final flutterSecureStorage = secureStorageShared;
+    final keyService = KeyService(flutterSecureStorage);
+    final password = await keyService.getWalletPassword(walletName: w.name);
+    final wallet = await walletService.openWallet(w.name, password);
+    havenSeedStore.add(HavenSeedStore(id: wallet.id, seed: wallet.seed));
+    wallet.close();
+  }
+}
+
 void _fixNodesUseSSLFlag(Box<Node> nodes) {
   for (Node node in nodes.values) {
     switch (node.uriRaw) {

lib/entities/haven_seed_store.dart

@@ -0,0 +1,19 @@
+import 'package:cw_core/hive_type_ids.dart';
+import 'package:hive/hive.dart';
+
+part 'haven_seed_store.g.dart';
+
+@HiveType(typeId: HavenSeedStore.typeId)
+class HavenSeedStore extends HiveObject {
+  HavenSeedStore({required this.id, this.seed});
+
+  static const typeId = TRANSACTION_TYPE_ID;
+  static const boxName = 'HavenSeedStore';
+  static const boxKey = 'havenSeedStoreKey';
+
+  @HiveField(0, defaultValue: '')
+  String id;
+
+  @HiveField(2)
+  String? seed;
+}

lib/main.dart

@@ -7,6 +7,7 @@ import 'package:cake_wallet/entities/contact.dart';
 import 'package:cake_wallet/entities/default_settings_migration.dart';
 import 'package:cake_wallet/entities/get_encryption_key.dart';
 import 'package:cake_wallet/core/secure_storage.dart';
+import 'package:cake_wallet/entities/haven_seed_store.dart';
 import 'package:cake_wallet/entities/language_service.dart';
 import 'package:cake_wallet/entities/template.dart';
 import 'package:cake_wallet/entities/transaction_description.dart';
@@ -167,6 +168,10 @@ Future<void> initializeAppConfigs() async {
     CakeHive.registerAdapter(AnonpayInvoiceInfoAdapter());
   }
 
+  if (!CakeHive.isAdapterRegistered(HavenSeedStore.typeId)) {
+    CakeHive.registerAdapter(HavenSeedStoreAdapter());
+  }
+
   final secureStorage = secureStorageShared;
 
   final transactionDescriptionsBoxKey =
@@ -188,6 +193,12 @@ Future<void> initializeAppConfigs() async {
   final anonpayInvoiceInfo = await CakeHive.openBox<AnonpayInvoiceInfo>(AnonpayInvoiceInfo.boxName);
   final unspentCoinsInfoSource = await CakeHive.openBox<UnspentCoinsInfo>(UnspentCoinsInfo.boxName);
 
+  final havenSeedStoreBoxKey =
+      await getEncryptionKey(secureStorage: secureStorage, forKey: HavenSeedStore.boxKey);
+  final havenSeedStore = await CakeHive.openBox<HavenSeedStore>(
+      HavenSeedStore.boxName,
+      encryptionKey: havenSeedStoreBoxKey);
+
   await initialSetup(
     sharedPreferences: await SharedPreferences.getInstance(),
     nodes: nodes,
@@ -203,7 +214,8 @@ Future<void> initializeAppConfigs() async {
     transactionDescriptions: transactionDescriptions,
     secureStorage: secureStorage,
     anonpayInvoiceInfo: anonpayInvoiceInfo,
-    initialMigrationVersion: 39,
+    havenSeedStore: havenSeedStore,
+    initialMigrationVersion: 40,
   );
 }
 
@@ -222,7 +234,8 @@ Future<void> initialSetup(
     required SecureStorage secureStorage,
     required Box<AnonpayInvoiceInfo> anonpayInvoiceInfo,
     required Box<UnspentCoinsInfo> unspentCoinsInfoSource,
-    int initialMigrationVersion = 15}) async {
+    required Box<HavenSeedStore> havenSeedStore,
+    int initialMigrationVersion = 15, }) async {
   LanguageService.loadLocaleList();
   await defaultSettingsMigration(
       secureStorage: secureStorage,
@@ -232,7 +245,8 @@ Future<void> initialSetup(
       contactSource: contactSource,
       tradeSource: tradesSource,
       nodes: nodes,
-      powNodes: powNodes);
+      powNodes: powNodes,
+      havenSeedStore: havenSeedStore);
   await setup(
     walletInfoSource: walletInfoSource,
     nodeSource: nodes,