mirror of
https://github.com/cake-tech/cake_wallet.git
synced 2024-12-23 03:59:23 +00:00
354 lines
12 KiB
Dart
354 lines
12 KiB
Dart
import 'dart:ffi';
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import 'dart:io';
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import 'dart:isolate';
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import 'package:cw_core/monero_wallet_utils.dart';
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import 'package:cw_core/pathForWallet.dart';
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import 'package:cw_core/unspent_coins_info.dart';
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import 'package:cw_core/wallet_base.dart';
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import 'package:cw_core/wallet_credentials.dart';
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import 'package:cw_core/wallet_info.dart';
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import 'package:cw_core/wallet_service.dart';
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import 'package:cw_core/wallet_type.dart';
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import 'package:cw_core/get_height_by_date.dart';
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import 'package:cw_monero/api/exceptions/wallet_opening_exception.dart';
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import 'package:cw_monero/api/wallet_manager.dart' as monero_wallet_manager;
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import 'package:cw_monero/api/wallet_manager.dart';
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import 'package:cw_monero/monero_wallet.dart';
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import 'package:flutter/widgets.dart';
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import 'package:hive/hive.dart';
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import 'package:polyseed/polyseed.dart';
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import 'package:monero/monero.dart' as monero;
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class MoneroNewWalletCredentials extends WalletCredentials {
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MoneroNewWalletCredentials(
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{required String name, required this.language, required this.isPolyseed, String? password})
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: super(name: name, password: password);
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final String language;
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final bool isPolyseed;
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}
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class MoneroRestoreWalletFromSeedCredentials extends WalletCredentials {
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MoneroRestoreWalletFromSeedCredentials(
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{required String name, required this.mnemonic, int height = 0, String? password})
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: super(name: name, password: password, height: height);
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final String mnemonic;
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}
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class MoneroWalletLoadingException implements Exception {
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@override
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String toString() => 'Failure to load the wallet.';
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}
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class MoneroRestoreWalletFromKeysCredentials extends WalletCredentials {
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MoneroRestoreWalletFromKeysCredentials(
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{required String name,
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required String password,
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required this.language,
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required this.address,
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required this.viewKey,
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required this.spendKey,
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int height = 0})
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: super(name: name, password: password, height: height);
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final String language;
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final String address;
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final String viewKey;
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final String spendKey;
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}
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class MoneroWalletService extends WalletService<MoneroNewWalletCredentials,
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MoneroRestoreWalletFromSeedCredentials, MoneroRestoreWalletFromKeysCredentials, MoneroNewWalletCredentials> {
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MoneroWalletService(this.walletInfoSource, this.unspentCoinsInfoSource);
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final Box<WalletInfo> walletInfoSource;
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final Box<UnspentCoinsInfo> unspentCoinsInfoSource;
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static bool walletFilesExist(String path) =>
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!File(path).existsSync() && !File('$path.keys').existsSync();
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@override
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WalletType getType() => WalletType.monero;
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@override
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Future<MoneroWallet> create(MoneroNewWalletCredentials credentials, {bool? isTestnet}) async {
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try {
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final path = await pathForWallet(name: credentials.name, type: getType());
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if (credentials.isPolyseed) {
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final polyseed = Polyseed.create();
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final lang = PolyseedLang.getByEnglishName(credentials.language);
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final heightOverride =
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getMoneroHeigthByDate(date: DateTime.now().subtract(Duration(days: 2)));
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return _restoreFromPolyseed(
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path, credentials.password!, polyseed, credentials.walletInfo!, lang,
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overrideHeight: heightOverride);
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}
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await monero_wallet_manager.createWallet(
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path: path, password: credentials.password!, language: credentials.language);
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final wallet = MoneroWallet(
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walletInfo: credentials.walletInfo!, unspentCoinsInfo: unspentCoinsInfoSource);
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await wallet.init();
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return wallet;
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} catch (e) {
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// TODO: Implement Exception for wallet list service.
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print('MoneroWalletsManager Error: ${e.toString()}');
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rethrow;
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}
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}
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@override
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Future<bool> isWalletExit(String name) async {
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try {
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final path = await pathForWallet(name: name, type: getType());
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return monero_wallet_manager.isWalletExist(path: path);
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} catch (e) {
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// TODO: Implement Exception for wallet list service.
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print('MoneroWalletsManager Error: $e');
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rethrow;
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}
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}
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@override
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Future<MoneroWallet> openWallet(String name, String password) async {
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MoneroWallet? wallet;
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try {
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final path = await pathForWallet(name: name, type: getType());
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if (walletFilesExist(path)) {
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await repairOldAndroidWallet(name);
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}
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await monero_wallet_manager.openWalletAsync({'path': path, 'password': password});
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final walletInfo = walletInfoSource.values
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.firstWhere((info) => info.id == WalletBase.idFor(name, getType()));
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wallet = MoneroWallet(walletInfo: walletInfo, unspentCoinsInfo: unspentCoinsInfoSource);
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final isValid = wallet.walletAddresses.validate();
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if (!isValid) {
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await restoreOrResetWalletFiles(name);
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wallet.close();
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return openWallet(name, password);
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}
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await wallet.init();
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return wallet;
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} catch (e, s) {
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// TODO: Implement Exception for wallet list service.
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final bool isBadAlloc = e.toString().contains('bad_alloc') ||
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(e is WalletOpeningException &&
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(e.message == 'std::bad_alloc' || e.message.contains('bad_alloc')));
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final bool doesNotCorrespond = e.toString().contains('does not correspond') ||
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(e is WalletOpeningException && e.message.contains('does not correspond'));
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final bool isMissingCacheFilesIOS = e.toString().contains('basic_string') ||
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(e is WalletOpeningException && e.message.contains('basic_string'));
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final bool isMissingCacheFilesAndroid = e.toString().contains('input_stream') ||
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e.toString().contains('input stream error') ||
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(e is WalletOpeningException &&
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(e.message.contains('input_stream') || e.message.contains('input stream error')));
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final bool invalidSignature = e.toString().contains('invalid signature') ||
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(e is WalletOpeningException && e.message.contains('invalid signature'));
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if (!isBadAlloc &&
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!doesNotCorrespond &&
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!isMissingCacheFilesIOS &&
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!isMissingCacheFilesAndroid &&
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!invalidSignature &&
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wallet != null &&
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wallet.onError != null) {
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wallet.onError!(FlutterErrorDetails(exception: e, stack: s));
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}
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await restoreOrResetWalletFiles(name);
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return openWallet(name, password);
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}
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}
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@override
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Future<void> remove(String wallet) async {
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final path = await pathForWalletDir(name: wallet, type: getType());
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if (openedWalletsByPath["$path/$wallet"] != null) {
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// NOTE: this is realistically only required on windows.
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print("closing wallet");
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final wmaddr = wmPtr.address;
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final waddr = openedWalletsByPath["$path/$wallet"]!.address;
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// await Isolate.run(() {
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monero.WalletManager_closeWallet(
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Pointer.fromAddress(wmaddr),
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Pointer.fromAddress(waddr),
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false
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);
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// });
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openedWalletsByPath.remove("$path/$wallet");
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print("wallet closed");
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}
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final file = Directory(path);
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final isExist = file.existsSync();
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if (isExist) {
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await file.delete(recursive: true);
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}
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final walletInfo = walletInfoSource.values
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.firstWhere((info) => info.id == WalletBase.idFor(wallet, getType()));
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await walletInfoSource.delete(walletInfo.key);
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}
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@override
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Future<void> rename(String currentName, String password, String newName) async {
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final currentWalletInfo = walletInfoSource.values
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.firstWhere((info) => info.id == WalletBase.idFor(currentName, getType()));
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final currentWallet =
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MoneroWallet(walletInfo: currentWalletInfo, unspentCoinsInfo: unspentCoinsInfoSource);
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await currentWallet.renameWalletFiles(newName);
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final newWalletInfo = currentWalletInfo;
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newWalletInfo.id = WalletBase.idFor(newName, getType());
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newWalletInfo.name = newName;
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await walletInfoSource.put(currentWalletInfo.key, newWalletInfo);
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}
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@override
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Future<MoneroWallet> restoreFromKeys(MoneroRestoreWalletFromKeysCredentials credentials,
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{bool? isTestnet}) async {
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try {
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final path = await pathForWallet(name: credentials.name, type: getType());
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await monero_wallet_manager.restoreFromKeys(
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path: path,
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password: credentials.password!,
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language: credentials.language,
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restoreHeight: credentials.height!,
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address: credentials.address,
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viewKey: credentials.viewKey,
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spendKey: credentials.spendKey);
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final wallet = MoneroWallet(
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walletInfo: credentials.walletInfo!, unspentCoinsInfo: unspentCoinsInfoSource);
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await wallet.init();
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return wallet;
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} catch (e) {
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// TODO: Implement Exception for wallet list service.
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print('MoneroWalletsManager Error: $e');
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rethrow;
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}
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}
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@override
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Future<MoneroWallet> restoreFromHardwareWallet(MoneroNewWalletCredentials credentials) {
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throw UnimplementedError("Restoring a Monero wallet from a hardware wallet is not yet supported!");
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}
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@override
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Future<MoneroWallet> restoreFromSeed(MoneroRestoreWalletFromSeedCredentials credentials,
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{bool? isTestnet}) async {
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// Restore from Polyseed
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if (Polyseed.isValidSeed(credentials.mnemonic)) {
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return restoreFromPolyseed(credentials);
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}
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try {
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final path = await pathForWallet(name: credentials.name, type: getType());
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await monero_wallet_manager.restoreFromSeed(
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path: path,
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password: credentials.password!,
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seed: credentials.mnemonic,
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restoreHeight: credentials.height!);
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final wallet = MoneroWallet(
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walletInfo: credentials.walletInfo!, unspentCoinsInfo: unspentCoinsInfoSource);
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await wallet.init();
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return wallet;
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} catch (e) {
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// TODO: Implement Exception for wallet list service.
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print('MoneroWalletsManager Error: $e');
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rethrow;
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}
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}
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Future<MoneroWallet> restoreFromPolyseed(
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MoneroRestoreWalletFromSeedCredentials credentials) async {
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try {
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final path = await pathForWallet(name: credentials.name, type: getType());
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final polyseedCoin = PolyseedCoin.POLYSEED_MONERO;
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final lang = PolyseedLang.getByPhrase(credentials.mnemonic);
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final polyseed = Polyseed.decode(credentials.mnemonic, lang, polyseedCoin);
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return _restoreFromPolyseed(
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path, credentials.password!, polyseed, credentials.walletInfo!, lang);
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} catch (e) {
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// TODO: Implement Exception for wallet list service.
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print('MoneroWalletsManager Error: $e');
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rethrow;
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}
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}
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Future<MoneroWallet> _restoreFromPolyseed(
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String path, String password, Polyseed polyseed, WalletInfo walletInfo, PolyseedLang lang,
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{PolyseedCoin coin = PolyseedCoin.POLYSEED_MONERO, int? overrideHeight}) async {
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final height = overrideHeight ??
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getMoneroHeigthByDate(date: DateTime.fromMillisecondsSinceEpoch(polyseed.birthday * 1000));
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final spendKey = polyseed.generateKey(coin, 32).toHexString();
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final seed = polyseed.encode(lang, coin);
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walletInfo.isRecovery = true;
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walletInfo.restoreHeight = height;
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await monero_wallet_manager.restoreFromSpendKey(
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path: path,
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password: password,
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seed: seed,
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language: lang.nameEnglish,
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restoreHeight: height,
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spendKey: spendKey);
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final wallet = MoneroWallet(walletInfo: walletInfo, unspentCoinsInfo: unspentCoinsInfoSource);
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await wallet.init();
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return wallet;
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}
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Future<void> repairOldAndroidWallet(String name) async {
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try {
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if (!Platform.isAndroid) {
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return;
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}
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final oldAndroidWalletDirPath = await outdatedAndroidPathForWalletDir(name: name);
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final dir = Directory(oldAndroidWalletDirPath);
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if (!dir.existsSync()) {
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return;
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}
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final newWalletDirPath = await pathForWalletDir(name: name, type: getType());
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dir.listSync().forEach((f) {
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final file = File(f.path);
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final name = f.path.split('/').last;
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final newPath = newWalletDirPath + '/$name';
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final newFile = File(newPath);
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if (!newFile.existsSync()) {
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newFile.createSync();
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}
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newFile.writeAsBytesSync(file.readAsBytesSync());
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});
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} catch (e) {
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print(e.toString());
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}
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}
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}
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