stack_wallet/lib/wallets/crypto_currency/intermediate/bip39_hd_currency.dart

88 lines
2.7 KiB
Dart

import 'package:bech32/bech32.dart';
import 'package:bs58check/bs58check.dart' as bs58check;
import 'package:coinlib_flutter/coinlib_flutter.dart' as coinlib;
import 'package:crypto/crypto.dart';
import 'package:flutter/foundation.dart';
import 'package:stackwallet/models/isar/models/blockchain_data/address.dart';
import 'package:stackwallet/utilities/amount/amount.dart';
import 'package:stackwallet/utilities/enums/derive_path_type_enum.dart';
import 'package:stackwallet/wallets/crypto_currency/intermediate/bip39_currency.dart';
abstract class Bip39HDCurrency extends Bip39Currency {
Bip39HDCurrency(super.network);
coinlib.NetworkParams get networkParams;
Amount get dustLimit;
String constructDerivePath({
required DerivePathType derivePathType,
int account = 0,
required int chain,
required int index,
});
({coinlib.Address address, AddressType addressType}) getAddressForPublicKey({
required coinlib.ECPublicKey publicKey,
required DerivePathType derivePathType,
});
String addressToScriptHash({required String address}) {
try {
final addr = coinlib.Address.fromString(address, networkParams);
return convertBytesToScriptHash(addr.program.script.compiled);
} catch (e) {
rethrow;
}
}
static String convertBytesToScriptHash(Uint8List bytes) {
final hash = sha256.convert(bytes.toList(growable: false)).toString();
final chars = hash.split("");
final List<String> reversedPairs = [];
// TODO find a better/faster way to do this?
int i = chars.length - 1;
while (i > 0) {
reversedPairs.add(chars[i - 1]);
reversedPairs.add(chars[i]);
i -= 2;
}
return reversedPairs.join("");
}
DerivePathType addressType({required String address}) {
Uint8List? decodeBase58;
Segwit? decodeBech32;
try {
decodeBase58 = bs58check.decode(address);
} catch (err) {
// Base58check decode fail
}
if (decodeBase58 != null) {
if (decodeBase58[0] == networkParams.p2pkhPrefix) {
// P2PKH
return DerivePathType.bip44;
}
if (decodeBase58[0] == networkParams.p2shPrefix) {
// P2SH
return DerivePathType.bip49;
}
throw ArgumentError('Invalid version or Network mismatch');
} else {
try {
decodeBech32 = segwit.decode(address);
} catch (err) {
// Bech32 decode fail
}
if (networkParams.bech32Hrp != decodeBech32!.hrp) {
throw ArgumentError('Invalid prefix or Network mismatch');
}
if (decodeBech32.version != 0) {
throw ArgumentError('Invalid address version');
}
// P2WPKH
return DerivePathType.bip84;
}
}
}