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Added backups for monero wallet files.

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This commit is contained in:
M 2021-07-06 13:51:54 +03:00
parent a423f4b776
commit 1e3b53d2cf
3 changed files with 94 additions and 12 deletions
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2
lib/monero/monero_wallet.dart
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@ -3,6 +3,7 @@ import 'package:cake_wallet/entities/transaction_priority.dart';
import 'package:cake_wallet/monero/monero_amount_format.dart';
import 'package:cake_wallet/monero/monero_transaction_creation_exception.dart';
import 'package:cake_wallet/monero/monero_transaction_info.dart';
import 'package:cake_wallet/monero/monero_wallet_utils.dart';
import 'package:flutter/foundation.dart';
import 'package:mobx/mobx.dart';
import 'package:cw_monero/transaction_history.dart'
@ -246,6 +247,7 @@ abstract class MoneroWalletBase extends WalletBase<MoneroBalance,
_lastSaveTimestamp = now;
await monero_wallet.store();
await backupWalletFiles(name);
}
Future<int> getNodeHeight() async => monero_wallet.getNodeHeight();

16
lib/monero/monero_wallet_service.dart
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@ -1,5 +1,6 @@
import 'dart:io';
import 'package:cake_wallet/core/wallet_base.dart';
import 'package:cake_wallet/monero/monero_wallet_utils.dart';
import 'package:hive/hive.dart';
import 'package:cw_monero/wallet_manager.dart' as monero_wallet_manager;
import 'package:cw_monero/wallet.dart' as monero_wallet;
@ -55,16 +56,7 @@ class MoneroWalletService extends WalletService<
MoneroWalletService(this.walletInfoSource);
final Box<WalletInfo> walletInfoSource;
static Future<void> _removeCache(String name) async {
final path = await pathForWallet(name: name, type: WalletType.monero);
final cacheFile = File(path);
if (cacheFile.existsSync()) {
cacheFile.deleteSync();
}
}
static bool walletFilesExist(String path) =>
!File(path).existsSync() && !File('$path.keys').existsSync();
@ -120,7 +112,7 @@ class MoneroWalletService extends WalletService<
final isValid = wallet.validate();
if (!isValid) {
await _removeCache(name);
await restoreOrResetWalletFiles(name);
wallet.close();
return openWallet(name, password);
}
@ -135,7 +127,7 @@ class MoneroWalletService extends WalletService<
(e is WalletOpeningException &&
(e.message == 'std::bad_alloc' ||
e.message.contains('bad_alloc')))) {
await _removeCache(name);
await restoreOrResetWalletFiles(name);
return openWallet(name, password);
}

88
lib/monero/monero_wallet_utils.dart Normal file
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@ -0,0 +1,88 @@
import 'dart:io';
import 'package:cake_wallet/entities/pathForWallet.dart';
import 'package:cake_wallet/entities/wallet_type.dart';
String backupFileName(String originalPath) {
final pathParts = originalPath.split('/');
final newName = '#_${pathParts.last}';
pathParts.removeLast();
pathParts.add(newName);
return pathParts.join('/');
}
Future<void> backupWalletFiles(String name) async {
final path = await pathForWallet(name: name, type: WalletType.monero);
final cacheFile = File(path);
final keysFile = File('$path.keys');
final addressListFile = File('$path.address.txt');
final newCacheFilePath = backupFileName(cacheFile.path);
final newKeysFilePath = backupFileName(keysFile.path);
final newAddressListFilePath = backupFileName(addressListFile.path);
if (cacheFile.existsSync()) {
await cacheFile.copy(newCacheFilePath);
}
if (keysFile.existsSync()) {
await keysFile.copy(newKeysFilePath);
}
if (addressListFile.existsSync()) {
await addressListFile.copy(newAddressListFilePath);
}
}
Future<void> restoreWalletFiles(String name) async {
final walletDirPath = await pathForWalletDir(name: name, type: WalletType.monero);
final cacheFilePath = '$walletDirPath/$name';
final keysFilePath = '$walletDirPath/$name.keys';
final addressListFilePath = '$walletDirPath/$name.address.txt';
final backupCacheFile = File(backupFileName(cacheFilePath));
final backupKeysFile = File(backupFileName(keysFilePath));
final backupAddressListFile = File(backupFileName(addressListFilePath));
if (backupCacheFile.existsSync()) {
await backupCacheFile.copy(cacheFilePath);
}
if (backupKeysFile.existsSync()) {
await backupKeysFile.copy(keysFilePath);
}
if (backupAddressListFile.existsSync()) {
await backupAddressListFile.copy(addressListFilePath);
}
}
Future<bool> backupWalletFilesExists(String name) async {
final walletDirPath = await pathForWalletDir(name: name, type: WalletType.monero);
final cacheFilePath = '$walletDirPath/$name';
final keysFilePath = '$walletDirPath/$name.keys';
final addressListFilePath = '$walletDirPath/$name.address.txt';
final backupCacheFile = File(backupFileName(cacheFilePath));
final backupKeysFile = File(backupFileName(keysFilePath));
final backupAddressListFile = File(backupFileName(addressListFilePath));
return backupCacheFile.existsSync()
&& backupKeysFile.existsSync()
&& backupAddressListFile.existsSync();
}
Future<void> removeCache(String name) async {
final path = await pathForWallet(name: name, type: WalletType.monero);
final cacheFile = File(path);
if (cacheFile.existsSync()) {
cacheFile.deleteSync();
}
}
Future<void> restoreOrResetWalletFiles(String name) async {
final backupsExists = await backupWalletFilesExists(name);
if (backupsExists) {
await restoreWalletFiles(name);
}
removeCache(name);
}