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Cw 688 avoid wallet file corruption (#1582)

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* CW-688 Store Seed and keys in .keys file

* CW-688 Open wallet from keys in .keys file and migrate wallets using the old file

* CW-688 Open wallet from keys in .keys file and migrate wallets using the old file

* CW-688 Restore .keys file from .keys.backup

* CW-688 Restore .keys file from .keys.backup

* CW-688 Move saving .keys files into the save function instead of the service

* CW-688 Handle corrupt wallets

* CW-688 Handle corrupt wallets

* CW-688 Remove code duplication

* CW-688 Reduce cache dependency

* wrap any file reading/writing function with try/catch [skip ci]

---------

Co-authored-by: Konstantin Ullrich <konstantinullrich12@gmail.com>
This commit is contained in:
Omar Hatem 2024-08-09 23:15:30 +03:00 • committed by GitHub
parent 8e4082d680
commit fb33a6f23d
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GPG key ID: B5690EEEBB952194
18 changed files with 433 additions and 144 deletions
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33
cw_ethereum/lib/ethereum_wallet.dart
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@ -6,6 +6,7 @@ import 'package:cw_core/erc20_token.dart';
import 'package:cw_core/pathForWallet.dart';
import 'package:cw_core/transaction_direction.dart';
import 'package:cw_core/wallet_info.dart';
import 'package:cw_core/wallet_keys_file.dart';
import 'package:cw_ethereum/default_ethereum_erc20_tokens.dart';
import 'package:cw_ethereum/ethereum_client.dart';
import 'package:cw_ethereum/ethereum_transaction_history.dart';
@ -122,19 +123,37 @@ class EthereumWallet extends EVMChainWallet {
static Future<EthereumWallet> open(
{required String name, required String password, required WalletInfo walletInfo}) async {
final hasKeysFile = await WalletKeysFile.hasKeysFile(name, walletInfo.type);
final path = await pathForWallet(name: name, type: walletInfo.type);
final jsonSource = await read(path: path, password: password);
final data = json.decode(jsonSource) as Map;
final mnemonic = data['mnemonic'] as String?;
final privateKey = data['private_key'] as String?;
final balance = EVMChainERC20Balance.fromJSON(data['balance'] as String) ??
Map<String, dynamic>? data;
try {
final jsonSource = await read(path: path, password: password);
data = json.decode(jsonSource) as Map<String, dynamic>;
} catch (e) {
if (!hasKeysFile) rethrow;
}
final balance = EVMChainERC20Balance.fromJSON(data?['balance'] as String) ??
EVMChainERC20Balance(BigInt.zero);
final WalletKeysData keysData;
// Migrate wallet from the old scheme to then new .keys file scheme
if (!hasKeysFile) {
final mnemonic = data!['mnemonic'] as String?;
final privateKey = data['private_key'] as String?;
keysData = WalletKeysData(mnemonic: mnemonic, privateKey: privateKey);
} else {
keysData = await WalletKeysFile.readKeysFile(name, walletInfo.type, password);
}
return EthereumWallet(
walletInfo: walletInfo,
password: password,
mnemonic: mnemonic,
privateKey: privateKey,
mnemonic: keysData.mnemonic,
privateKey: keysData.privateKey,
initialBalance: balance,
client: EthereumClient(),
);