mirror of
https://github.com/cypherstack/stack_wallet.git
synced 2024-12-26 13:29:23 +00:00
17fbf7f9ab
now we will continue beyond maxNumberOfIndexesToCheck if there's activity beyond that point. we just keep scanning up until the unused activity gap
371 lines
10 KiB
Dart
371 lines
10 KiB
Dart
import 'dart:typed_data';
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import 'package:bech32/bech32.dart';
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import 'package:bitbox/bitbox.dart' as bitbox;
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import 'package:bs58check/bs58check.dart' as bs58check;
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import 'package:coinlib_flutter/coinlib_flutter.dart' as coinlib;
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import '../../../models/isar/models/blockchain_data/address.dart';
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import '../../../models/node_model.dart';
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import '../../../utilities/amount/amount.dart';
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import '../../../utilities/default_nodes.dart';
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import '../../../utilities/enums/derive_path_type_enum.dart';
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import '../crypto_currency.dart';
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import '../interfaces/electrumx_currency_interface.dart';
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import '../intermediate/bip39_hd_currency.dart';
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class Bitcoincash extends Bip39HDCurrency with ElectrumXCurrencyInterface {
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Bitcoincash(super.network) {
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_idMain = "bitcoincash";
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switch (network) {
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case CryptoCurrencyNetwork.main:
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_id = _idMain;
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_name = "Bitcoin Cash";
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_ticker = "BCH";
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_uriScheme = "bitcoincash";
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case CryptoCurrencyNetwork.test:
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_id = "bitcoincashTestnet";
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_name = "tBitcoin Cash";
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_ticker = "tBCH";
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_uriScheme = "bchtest";
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default:
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throw Exception("Unsupported network: $network");
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}
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}
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late final String _id;
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@override
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String get identifier => _id;
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late final String _idMain;
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@override
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String get mainNetId => _idMain;
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late final String _name;
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@override
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String get prettyName => _name;
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late final String _uriScheme;
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@override
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String get uriScheme => _uriScheme;
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late final String _ticker;
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@override
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String get ticker => _ticker;
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@override
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int get maxUnusedAddressGap => 50;
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@override
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// change this to change the number of confirms a tx needs in order to show as confirmed
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int get minConfirms => 0; // bch zeroconf
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@override
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bool get torSupport => true;
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@override
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List<DerivePathType> get supportedDerivationPathTypes => [
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DerivePathType.bip44,
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if (network != CryptoCurrencyNetwork.test) DerivePathType.bch44,
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];
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@override
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String get genesisHash {
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switch (network) {
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case CryptoCurrencyNetwork.main:
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return "000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f";
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case CryptoCurrencyNetwork.test:
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return "000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943";
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default:
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throw Exception("Unsupported network: $network");
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}
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}
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@override
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Amount get dustLimit => Amount(
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rawValue: BigInt.from(546),
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fractionDigits: fractionDigits,
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);
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@override
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coinlib.Network get networkParams {
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switch (network) {
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case CryptoCurrencyNetwork.main:
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return coinlib.Network(
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wifPrefix: 0x80,
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p2pkhPrefix: 0x00,
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p2shPrefix: 0x05,
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privHDPrefix: 0x0488ade4,
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pubHDPrefix: 0x0488b21e,
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bech32Hrp: "bc",
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messagePrefix: '\x18Bitcoin Signed Message:\n',
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minFee: BigInt.from(1), // Not used in stack wallet currently
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minOutput: dustLimit.raw, // Not used in stack wallet currently
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feePerKb: BigInt.from(1), // Not used in stack wallet currently
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);
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case CryptoCurrencyNetwork.test:
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return coinlib.Network(
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wifPrefix: 0xef,
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p2pkhPrefix: 0x6f,
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p2shPrefix: 0xc4,
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privHDPrefix: 0x04358394,
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pubHDPrefix: 0x043587cf,
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bech32Hrp: "tb",
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messagePrefix: "\x18Bitcoin Signed Message:\n",
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minFee: BigInt.from(1), // Not used in stack wallet currently
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minOutput: dustLimit.raw, // Not used in stack wallet currently
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feePerKb: BigInt.from(1), // Not used in stack wallet currently
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);
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default:
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throw Exception("Unsupported network: $network");
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}
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}
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@override
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String addressToScriptHash({required String address}) {
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try {
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if (bitbox.Address.detectFormat(address) ==
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bitbox.Address.formatCashAddr &&
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_validateCashAddr(address)) {
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address = bitbox.Address.toLegacyAddress(address);
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}
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final addr = coinlib.Address.fromString(address, networkParams);
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return Bip39HDCurrency.convertBytesToScriptHash(
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addr.program.script.compiled,
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);
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} catch (e) {
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rethrow;
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}
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}
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@override
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String constructDerivePath({
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required DerivePathType derivePathType,
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int account = 0,
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required int chain,
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required int index,
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}) {
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String coinType;
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switch (networkParams.wifPrefix) {
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case 0x80:
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switch (derivePathType) {
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case DerivePathType.bip44:
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coinType = "145"; // bch mainnet
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break;
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case DerivePathType.bch44: // bitcoin.com wallet specific
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coinType = "0"; // bch mainnet
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break;
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default:
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throw Exception(
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"DerivePathType $derivePathType not supported for coinType",
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);
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}
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break;
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case 0xef:
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coinType = "1"; // btc testnet
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break;
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default:
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throw Exception("Invalid Bitcoin network wif used!");
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}
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final int purpose;
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switch (derivePathType) {
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case DerivePathType.bip44:
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case DerivePathType.bch44:
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purpose = 44;
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break;
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default:
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throw Exception("DerivePathType $derivePathType not supported");
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}
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return "m/$purpose'/$coinType'/$account'/$chain/$index";
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}
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@override
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({coinlib.Address address, AddressType addressType}) getAddressForPublicKey({
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required coinlib.ECPublicKey publicKey,
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required DerivePathType derivePathType,
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}) {
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switch (derivePathType) {
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case DerivePathType.bip44:
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case DerivePathType.bch44:
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final addr = coinlib.P2PKHAddress.fromPublicKey(
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publicKey,
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version: networkParams.p2pkhPrefix,
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);
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return (address: addr, addressType: AddressType.p2pkh);
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default:
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throw Exception("DerivePathType $derivePathType not supported");
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}
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}
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@override
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bool validateAddress(String address) {
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try {
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// 0 for bitcoincash: address scheme, 1 for legacy address
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final format = bitbox.Address.detectFormat(address);
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if (network.isTestNet) {
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return true;
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}
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if (format == bitbox.Address.formatCashAddr) {
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return _validateCashAddr(address);
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} else {
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return address.startsWith("1");
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}
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} catch (e) {
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return false;
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}
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}
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bool _validateCashAddr(String cashAddr) {
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String addr = cashAddr;
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if (cashAddr.contains(":")) {
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addr = cashAddr.split(":").last;
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}
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return addr.startsWith("q") /*|| addr.startsWith("p")*/;
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// Do not validate "p" (P2SH) addresses.
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}
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@override
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DerivePathType addressType({required String address}) {
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Uint8List? decodeBase58;
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Segwit? decodeBech32;
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try {
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if (bitbox.Address.detectFormat(address) ==
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bitbox.Address.formatCashAddr) {
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if (_validateCashAddr(address)) {
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address = bitbox.Address.toLegacyAddress(address);
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} else {
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throw ArgumentError('$address is not currently supported');
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}
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}
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} catch (_) {
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// invalid cash addr format
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}
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try {
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decodeBase58 = bs58check.decode(address);
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} catch (err) {
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// Base58check decode fail
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}
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if (decodeBase58 != null) {
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if (decodeBase58[0] == networkParams.p2pkhPrefix) {
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// P2PKH
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return DerivePathType.bip44;
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}
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if (decodeBase58[0] == networkParams.p2shPrefix) {
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// P2SH
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return DerivePathType.bip49;
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}
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throw ArgumentError('Invalid version or Network mismatch');
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} else {
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try {
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decodeBech32 = segwit.decode(address);
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} catch (err) {
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// Bech32 decode fail
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}
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if (decodeBech32 != null) {
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if (networkParams.bech32Hrp != decodeBech32.hrp) {
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throw ArgumentError('Invalid prefix or Network mismatch');
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}
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if (decodeBech32.version != 0) {
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throw ArgumentError('Invalid address version');
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}
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}
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}
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throw ArgumentError('$address has no matching Script');
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}
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@override
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NodeModel get defaultNode {
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switch (network) {
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case CryptoCurrencyNetwork.main:
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return NodeModel(
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host: "bitcoincash.stackwallet.com",
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port: 50002,
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name: DefaultNodes.defaultName,
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id: DefaultNodes.buildId(this),
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useSSL: true,
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enabled: true,
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coinName: identifier,
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isFailover: true,
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isDown: false,
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);
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case CryptoCurrencyNetwork.test:
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return NodeModel(
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host: "bitcoincash-testnet.stackwallet.com",
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port: 60002,
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name: DefaultNodes.defaultName,
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id: DefaultNodes.buildId(this),
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useSSL: true,
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enabled: true,
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coinName: identifier,
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isFailover: true,
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isDown: false,
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);
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default:
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throw UnimplementedError();
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}
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}
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@override
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int get defaultSeedPhraseLength => 12;
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@override
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int get fractionDigits => 8;
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@override
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bool get hasBuySupport => true;
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@override
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bool get hasMnemonicPassphraseSupport => true;
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@override
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List<int> get possibleMnemonicLengths => [defaultSeedPhraseLength, 24];
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@override
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AddressType get defaultAddressType => defaultDerivePathType.getAddressType();
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@override
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BigInt get satsPerCoin => BigInt.from(100000000);
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@override
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int get targetBlockTimeSeconds => 600;
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@override
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DerivePathType get defaultDerivePathType => DerivePathType.bip44;
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@override
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Uri defaultBlockExplorer(String txid) {
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switch (network) {
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case CryptoCurrencyNetwork.main:
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return Uri.parse(
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"https://blockchair.com/bitcoin-cash/transaction/$txid",
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);
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case CryptoCurrencyNetwork.test:
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return Uri.parse(
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"https://blockexplorer.one/bitcoin-cash/testnet/tx/$txid",
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);
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default:
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throw Exception(
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"Unsupported network for defaultBlockExplorer(): $network",
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);
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}
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}
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@override
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int get transactionVersion => 2;
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@override
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BigInt get defaultFeeRate => BigInt.from(1000);
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}
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