mirror of
https://github.com/cypherstack/stack_wallet.git
synced 2024-11-18 10:11:03 +00:00
899 lines
28 KiB
Dart
899 lines
28 KiB
Dart
import 'dart:convert';
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import 'dart:typed_data';
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import 'package:bip32/bip32.dart' as bip32;
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import 'package:bip47/bip47.dart';
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import 'package:bip47/src/util.dart';
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import 'package:bitcoindart/bitcoindart.dart' as btc_dart;
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import 'package:bitcoindart/src/utils/constants/op.dart' as op;
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import 'package:bitcoindart/src/utils/script.dart' as bscript;
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import 'package:isar/isar.dart';
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import 'package:pointycastle/digests/sha256.dart';
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import 'package:stackwallet/db/main_db.dart';
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import 'package:stackwallet/electrumx_rpc/electrumx.dart';
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import 'package:stackwallet/exceptions/wallet/insufficient_balance_exception.dart';
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import 'package:stackwallet/exceptions/wallet/paynym_send_exception.dart';
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import 'package:stackwallet/models/isar/models/isar_models.dart';
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import 'package:stackwallet/services/coins/dogecoin/dogecoin_wallet.dart';
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import 'package:stackwallet/utilities/bip32_utils.dart';
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import 'package:stackwallet/utilities/enums/coin_enum.dart';
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import 'package:stackwallet/utilities/enums/derive_path_type_enum.dart';
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import 'package:stackwallet/utilities/format.dart';
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import 'package:stackwallet/utilities/logger.dart';
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import 'package:tuple/tuple.dart';
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const kPaynymDerivePath = "m/47'/0'/0'";
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mixin PaynymSupport {
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// passed in wallet data
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late final String walletId;
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late final String walletName;
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late final btc_dart.NetworkType network;
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late final Coin coin;
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late final MainDB db;
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late final ElectrumX electrumXClient;
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// passed in wallet functions
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late final Future<List<String>> Function() getMnemonic;
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late final Future<int> Function() getChainHeight;
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late final Future<String> Function() getCurrentChangeAddress;
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late final int Function({
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required int vSize,
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required int feeRatePerKB,
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}) estimateTxFee;
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late final Future<Map<String, dynamic>> Function({
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required String address,
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required int satoshiAmount,
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Map<String, dynamic>? args,
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}) prepareSend;
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late final Future<int> Function({
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required String address,
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}) getTxCount;
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late final Future<Map<String, dynamic>> Function(
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List<UTXO> utxosToUse,
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) fetchBuildTxData;
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late final Future<void> Function() refresh;
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late final Future<void> Function() checkChangeAddressForTransactions;
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// initializer
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void initPaynymSupport({
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required String walletId,
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required String walletName,
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required btc_dart.NetworkType network,
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required Coin coin,
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required MainDB db,
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required ElectrumX electrumXClient,
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required Future<List<String>> Function() getMnemonic,
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required Future<int> Function() getChainHeight,
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required Future<String> Function() getCurrentChangeAddress,
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required int Function({
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required int vSize,
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required int feeRatePerKB,
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})
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estimateTxFee,
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required Future<Map<String, dynamic>> Function({
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required String address,
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required int satoshiAmount,
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Map<String, dynamic>? args,
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})
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prepareSend,
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required Future<int> Function({
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required String address,
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})
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getTxCount,
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required Future<Map<String, dynamic>> Function(
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List<UTXO> utxosToUse,
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)
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fetchBuildTxData,
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required Future<void> Function() refresh,
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required Future<void> Function() checkChangeAddressForTransactions,
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}) {
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this.walletId = walletId;
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this.walletName = walletName;
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this.network = network;
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this.coin = coin;
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this.db = db;
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this.electrumXClient = electrumXClient;
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this.getMnemonic = getMnemonic;
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this.getChainHeight = getChainHeight;
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this.getCurrentChangeAddress = getCurrentChangeAddress;
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this.estimateTxFee = estimateTxFee;
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this.prepareSend = prepareSend;
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this.getTxCount = getTxCount;
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this.fetchBuildTxData = fetchBuildTxData;
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this.refresh = refresh;
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this.checkChangeAddressForTransactions = checkChangeAddressForTransactions;
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}
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// generate bip32 payment code root
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Future<bip32.BIP32> getRootNode({
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required List<String> mnemonic,
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}) async {
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final root = await Bip32Utils.getBip32Root(mnemonic.join(" "), network);
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return root;
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}
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Future<Uint8List> deriveNotificationPrivateKey({
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required List<String> mnemonic,
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}) async {
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final root = await getRootNode(mnemonic: mnemonic);
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final node = root.derivePath(kPaynymDerivePath).derive(0);
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return node.privateKey!;
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}
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/// fetch or generate this wallet's bip47 payment code
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Future<PaymentCode> getPaymentCode(
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DerivePathType derivePathType,
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) async {
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final address = await getMyNotificationAddress(derivePathType);
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final paymentCode = PaymentCode.fromPaymentCode(
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address.otherData!,
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network,
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);
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return paymentCode;
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}
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Future<Uint8List> signWithNotificationKey(Uint8List data) async {
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final privateKey =
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await deriveNotificationPrivateKey(mnemonic: await getMnemonic());
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final pair = btc_dart.ECPair.fromPrivateKey(privateKey, network: network);
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final signed = pair.sign(SHA256Digest().process(data));
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return signed;
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}
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Future<String> signStringWithNotificationKey(String data) async {
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final bytes =
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await signWithNotificationKey(Uint8List.fromList(utf8.encode(data)));
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return Format.uint8listToString(bytes);
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}
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Future<Future<Map<String, dynamic>>> preparePaymentCodeSend(
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{required PaymentCode paymentCode,
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required int satoshiAmount,
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Map<String, dynamic>? args}) async {
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if (!(await hasConnected(paymentCode.notificationAddressP2PKH()))) {
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throw PaynymSendException(
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"No notification transaction sent to $paymentCode");
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} else {
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final myPrivateKey =
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await deriveNotificationPrivateKey(mnemonic: await getMnemonic());
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final sendToAddress = await nextUnusedSendAddressFrom(
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pCode: paymentCode,
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privateKey: myPrivateKey,
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);
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return prepareSend(
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address: sendToAddress.value, satoshiAmount: satoshiAmount);
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}
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}
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/// get the next unused address to send to given the receiver's payment code
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/// and your own private key
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Future<Address> nextUnusedSendAddressFrom({
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required PaymentCode pCode,
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required Uint8List privateKey,
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int startIndex = 0,
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}) async {
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// https://en.bitcoin.it/wiki/BIP_0047#Path_levels
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const maxCount = 2147483647;
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for (int i = startIndex; i < maxCount; i++) {
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final address = await db
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.getAddresses(walletId)
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.filter()
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.subTypeEqualTo(AddressSubType.paynymSend)
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.and()
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.otherDataEqualTo(pCode.toString())
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.and()
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.derivationIndexEqualTo(i)
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.findFirst();
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if (address != null) {
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final count = await getTxCount(address: address.value);
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// return address if unused, otherwise continue to next index
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if (count == 0) {
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return address;
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}
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} else {
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final pair = PaymentAddress.initWithPrivateKey(
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privateKey,
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pCode,
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i, // index to use
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).getSendAddressKeyPair();
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// add address to local db
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final address = generatePaynymSendAddressFromKeyPair(
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pair: pair,
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derivationIndex: i,
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derivePathType: DerivePathType.bip44,
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toPaymentCode: pCode,
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);
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await db.putAddress(address);
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final count = await getTxCount(address: address.value);
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// return address if unused, otherwise continue to next index
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if (count == 0) {
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return address;
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}
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}
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}
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throw PaynymSendException("Exhausted unused send addresses!");
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}
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Future<Map<String, dynamic>> prepareNotificationTx({
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required int selectedTxFeeRate,
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required String targetPaymentCodeString,
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int additionalOutputs = 0,
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List<UTXO>? utxos,
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}) async {
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const amountToSend = DUST_LIMIT;
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final List<UTXO> availableOutputs =
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utxos ?? await db.getUTXOs(walletId).findAll();
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final List<UTXO> spendableOutputs = [];
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int spendableSatoshiValue = 0;
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// Build list of spendable outputs and totaling their satoshi amount
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for (var i = 0; i < availableOutputs.length; i++) {
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if (availableOutputs[i].isBlocked == false &&
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availableOutputs[i]
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.isConfirmed(await getChainHeight(), MINIMUM_CONFIRMATIONS) ==
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true) {
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spendableOutputs.add(availableOutputs[i]);
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spendableSatoshiValue += availableOutputs[i].value;
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}
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}
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if (spendableSatoshiValue < amountToSend) {
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// insufficient balance
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throw InsufficientBalanceException(
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"Spendable balance is less than the minimum required for a notification transaction.");
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} else if (spendableSatoshiValue == amountToSend) {
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// insufficient balance due to missing amount to cover fee
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throw InsufficientBalanceException(
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"Remaining balance does not cover the network fee.");
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}
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// sort spendable by age (oldest first)
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spendableOutputs.sort((a, b) => b.blockTime!.compareTo(a.blockTime!));
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int satoshisBeingUsed = 0;
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int outputsBeingUsed = 0;
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List<UTXO> utxoObjectsToUse = [];
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for (int i = 0;
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satoshisBeingUsed < amountToSend && i < spendableOutputs.length;
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i++) {
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utxoObjectsToUse.add(spendableOutputs[i]);
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satoshisBeingUsed += spendableOutputs[i].value;
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outputsBeingUsed += 1;
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}
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// add additional outputs if required
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for (int i = 0;
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i < additionalOutputs && outputsBeingUsed < spendableOutputs.length;
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i++) {
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utxoObjectsToUse.add(spendableOutputs[outputsBeingUsed]);
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satoshisBeingUsed += spendableOutputs[outputsBeingUsed].value;
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outputsBeingUsed += 1;
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}
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// gather required signing data
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final utxoSigningData = await fetchBuildTxData(utxoObjectsToUse);
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final int vSizeForNoChange = (await _createNotificationTx(
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targetPaymentCodeString: targetPaymentCodeString,
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utxosToUse: utxoObjectsToUse,
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utxoSigningData: utxoSigningData,
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change: 0))
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.item2;
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final int vSizeForWithChange = (await _createNotificationTx(
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targetPaymentCodeString: targetPaymentCodeString,
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utxosToUse: utxoObjectsToUse,
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utxoSigningData: utxoSigningData,
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change: satoshisBeingUsed - amountToSend))
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.item2;
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// Assume 2 outputs, for recipient and payment code script
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int feeForNoChange = estimateTxFee(
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vSize: vSizeForNoChange,
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feeRatePerKB: selectedTxFeeRate,
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);
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// Assume 3 outputs, for recipient, payment code script, and change
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int feeForWithChange = estimateTxFee(
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vSize: vSizeForWithChange,
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feeRatePerKB: selectedTxFeeRate,
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);
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if (feeForNoChange < vSizeForNoChange * 1000) {
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feeForNoChange = vSizeForNoChange * 1000;
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}
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if (feeForWithChange < vSizeForWithChange * 1000) {
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feeForWithChange = vSizeForWithChange * 1000;
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}
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if (satoshisBeingUsed - amountToSend > feeForNoChange + DUST_LIMIT) {
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// try to add change output due to "left over" amount being greater than
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// the estimated fee + the dust limit
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int changeAmount = satoshisBeingUsed - amountToSend - feeForWithChange;
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// check estimates are correct and build notification tx
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if (changeAmount >= DUST_LIMIT &&
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satoshisBeingUsed - amountToSend - changeAmount == feeForWithChange) {
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final txn = await _createNotificationTx(
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targetPaymentCodeString: targetPaymentCodeString,
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utxosToUse: utxoObjectsToUse,
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utxoSigningData: utxoSigningData,
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change: changeAmount,
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);
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int feeBeingPaid = satoshisBeingUsed - amountToSend - changeAmount;
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Map<String, dynamic> transactionObject = {
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"hex": txn.item1,
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"recipientPaynym": targetPaymentCodeString,
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"amount": amountToSend,
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"fee": feeBeingPaid,
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"vSize": txn.item2,
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};
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return transactionObject;
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} else {
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// something broke during fee estimation or the change amount is smaller
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// than the dust limit. Try without change
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final txn = await _createNotificationTx(
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targetPaymentCodeString: targetPaymentCodeString,
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utxosToUse: utxoObjectsToUse,
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utxoSigningData: utxoSigningData,
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change: 0,
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);
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int feeBeingPaid = satoshisBeingUsed - amountToSend;
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Map<String, dynamic> transactionObject = {
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"hex": txn.item1,
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"recipientPaynym": targetPaymentCodeString,
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"amount": amountToSend,
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"fee": feeBeingPaid,
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"vSize": txn.item2,
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};
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return transactionObject;
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}
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} else if (satoshisBeingUsed - amountToSend >= feeForNoChange) {
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// since we already checked if we need to add a change output we can just
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// build without change here
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final txn = await _createNotificationTx(
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targetPaymentCodeString: targetPaymentCodeString,
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utxosToUse: utxoObjectsToUse,
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utxoSigningData: utxoSigningData,
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change: 0,
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);
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int feeBeingPaid = satoshisBeingUsed - amountToSend;
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Map<String, dynamic> transactionObject = {
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"hex": txn.item1,
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"recipientPaynym": targetPaymentCodeString,
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"amount": amountToSend,
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"fee": feeBeingPaid,
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"vSize": txn.item2,
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};
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return transactionObject;
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} else {
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// if we get here we do not have enough funds to cover the tx total so we
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// check if we have any more available outputs and try again
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if (spendableOutputs.length > outputsBeingUsed) {
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return prepareNotificationTx(
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selectedTxFeeRate: selectedTxFeeRate,
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targetPaymentCodeString: targetPaymentCodeString,
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additionalOutputs: additionalOutputs + 1,
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);
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} else {
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throw InsufficientBalanceException(
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"Remaining balance does not cover the network fee.");
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}
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}
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}
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// return tuple with string value equal to the raw tx hex and the int value
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// equal to its vSize
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Future<Tuple2<String, int>> _createNotificationTx({
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required String targetPaymentCodeString,
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required List<UTXO> utxosToUse,
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required Map<String, dynamic> utxoSigningData,
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required int change,
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}) async {
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final targetPaymentCode =
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PaymentCode.fromPaymentCode(targetPaymentCodeString, network);
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final myCode = await getPaymentCode(DerivePathType.bip44);
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final utxo = utxosToUse.first;
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final txPoint = utxo.txid.fromHex.toList();
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final txPointIndex = utxo.vout;
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final rev = Uint8List(txPoint.length + 4);
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Util.copyBytes(Uint8List.fromList(txPoint), 0, rev, 0, txPoint.length);
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final buffer = rev.buffer.asByteData();
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buffer.setUint32(txPoint.length, txPointIndex, Endian.little);
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final myKeyPair = utxoSigningData[utxo.txid]["keyPair"] as btc_dart.ECPair;
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final S = SecretPoint(
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myKeyPair.privateKey!,
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targetPaymentCode.notificationPublicKey(),
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);
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final blindingMask = PaymentCode.getMask(S.ecdhSecret(), rev);
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final blindedPaymentCode = PaymentCode.blind(
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myCode.getPayload(),
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blindingMask,
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);
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final opReturnScript = bscript.compile([
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(op.OPS["OP_RETURN"] as int),
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blindedPaymentCode,
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]);
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// build a notification tx
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final txb = btc_dart.TransactionBuilder(network: network);
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txb.setVersion(1);
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txb.addInput(
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utxo.txid,
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txPointIndex,
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);
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// todo: modify address once segwit support is in our bip47
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txb.addOutput(targetPaymentCode.notificationAddressP2PKH(), DUST_LIMIT);
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txb.addOutput(opReturnScript, 0);
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// TODO: add possible change output and mark output as dangerous
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if (change > 0) {
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// generate new change address if current change address has been used
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await checkChangeAddressForTransactions();
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final String changeAddress = await getCurrentChangeAddress();
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txb.addOutput(changeAddress, change);
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}
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txb.sign(
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vin: 0,
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keyPair: myKeyPair,
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);
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// sign rest of possible inputs
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for (var i = 1; i < utxosToUse.length - 1; i++) {
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final txid = utxosToUse[i].txid;
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txb.sign(
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vin: i,
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keyPair: utxoSigningData[txid]["keyPair"] as btc_dart.ECPair,
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// witnessValue: utxosToUse[i].value,
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);
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}
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final builtTx = txb.build();
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return Tuple2(builtTx.toHex(), builtTx.virtualSize());
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}
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Future<String> broadcastNotificationTx(
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{required Map<String, dynamic> preparedTx}) async {
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try {
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Logging.instance.log("confirmNotificationTx txData: $preparedTx",
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level: LogLevel.Info);
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final txHash = await electrumXClient.broadcastTransaction(
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rawTx: preparedTx["hex"] as String);
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Logging.instance.log("Sent txHash: $txHash", level: LogLevel.Info);
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// TODO: only refresh transaction data
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try {
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await refresh();
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} catch (e) {
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Logging.instance.log(
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"refresh() failed in confirmNotificationTx ($walletName::$walletId): $e",
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level: LogLevel.Error,
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);
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}
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return txHash;
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} catch (e, s) {
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Logging.instance.log("Exception rethrown from confirmSend(): $e\n$s",
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level: LogLevel.Error);
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rethrow;
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}
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|
}
|
|
|
|
// TODO optimize
|
|
Future<bool> hasConnected(String paymentCodeString) async {
|
|
final myNotificationAddress =
|
|
await getMyNotificationAddress(DerivePathTypeExt.primaryFor(coin));
|
|
|
|
final txns = await db
|
|
.getTransactions(walletId)
|
|
.filter()
|
|
.subTypeEqualTo(TransactionSubType.bip47Notification)
|
|
.findAll();
|
|
|
|
for (final tx in txns) {
|
|
// quick check that may cause problems?
|
|
if (tx.address.value?.value == myNotificationAddress.value) {
|
|
return true;
|
|
}
|
|
|
|
final unBlindedPaymentCode = await unBlindedPaymentCodeFromTransaction(
|
|
transaction: tx,
|
|
myNotificationAddress: myNotificationAddress,
|
|
);
|
|
|
|
if (paymentCodeString == unBlindedPaymentCode.toString()) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
// otherwise return no
|
|
return false;
|
|
}
|
|
|
|
Future<PaymentCode?> unBlindedPaymentCodeFromTransaction({
|
|
required Transaction transaction,
|
|
required Address myNotificationAddress,
|
|
}) async {
|
|
if (transaction.address.value != null &&
|
|
transaction.address.value!.value != myNotificationAddress.value) {
|
|
return null;
|
|
}
|
|
|
|
try {
|
|
final blindedCode =
|
|
transaction.outputs.elementAt(1).scriptPubKeyAsm!.split(" ")[1];
|
|
|
|
final designatedInput = transaction.inputs.first;
|
|
|
|
final txPoint = designatedInput.txid.fromHex.toList();
|
|
final txPointIndex = designatedInput.vout;
|
|
|
|
final rev = Uint8List(txPoint.length + 4);
|
|
Util.copyBytes(Uint8List.fromList(txPoint), 0, rev, 0, txPoint.length);
|
|
final buffer = rev.buffer.asByteData();
|
|
buffer.setUint32(txPoint.length, txPointIndex, Endian.little);
|
|
|
|
final pubKey = designatedInput.scriptSigAsm!.split(" ")[1].fromHex;
|
|
|
|
final myPrivateKey =
|
|
await deriveNotificationPrivateKey(mnemonic: await getMnemonic());
|
|
|
|
final S = SecretPoint(myPrivateKey, pubKey);
|
|
|
|
final mask = PaymentCode.getMask(S.ecdhSecret(), rev);
|
|
|
|
final unBlindedPayload = PaymentCode.blind(blindedCode.fromHex, mask);
|
|
|
|
final unBlindedPaymentCode =
|
|
PaymentCode.initFromPayload(unBlindedPayload);
|
|
|
|
return unBlindedPaymentCode;
|
|
} catch (e) {
|
|
Logging.instance.log(
|
|
"unBlindedPaymentCodeFromTransaction() failed: $e",
|
|
level: LogLevel.Warning,
|
|
);
|
|
return null;
|
|
}
|
|
}
|
|
|
|
Future<List<PaymentCode>>
|
|
getAllPaymentCodesFromNotificationTransactions() async {
|
|
final myAddress =
|
|
await getMyNotificationAddress(DerivePathTypeExt.primaryFor(coin));
|
|
final txns = await db
|
|
.getTransactions(walletId)
|
|
.filter()
|
|
.subTypeEqualTo(TransactionSubType.bip47Notification)
|
|
.findAll();
|
|
|
|
List<PaymentCode> unBlindedList = [];
|
|
|
|
for (final tx in txns) {
|
|
final unBlinded = await unBlindedPaymentCodeFromTransaction(
|
|
transaction: tx,
|
|
myNotificationAddress: myAddress,
|
|
);
|
|
if (unBlinded != null) {
|
|
unBlindedList.add(unBlinded);
|
|
}
|
|
}
|
|
|
|
return unBlindedList;
|
|
}
|
|
|
|
Future<void> restoreHistoryWith(
|
|
PaymentCode other,
|
|
int maxUnusedAddressGap,
|
|
int maxNumberOfIndexesToCheck,
|
|
) async {
|
|
// https://en.bitcoin.it/wiki/BIP_0047#Path_levels
|
|
const maxCount = 2147483647;
|
|
assert(maxNumberOfIndexesToCheck < maxCount);
|
|
|
|
final myPrivateKey =
|
|
await deriveNotificationPrivateKey(mnemonic: await getMnemonic());
|
|
|
|
List<Address> addresses = [];
|
|
int receivingGapCounter = 0;
|
|
int outgoingGapCounter = 0;
|
|
|
|
for (int i = 0;
|
|
i < maxNumberOfIndexesToCheck &&
|
|
(receivingGapCounter < maxUnusedAddressGap ||
|
|
outgoingGapCounter < maxUnusedAddressGap);
|
|
i++) {
|
|
final paymentAddress = PaymentAddress.initWithPrivateKey(
|
|
myPrivateKey,
|
|
other,
|
|
i, // index to use
|
|
);
|
|
|
|
if (receivingGapCounter < maxUnusedAddressGap) {
|
|
final pair = paymentAddress.getSendAddressKeyPair();
|
|
final address = generatePaynymSendAddressFromKeyPair(
|
|
pair: pair,
|
|
derivationIndex: i,
|
|
derivePathType: DerivePathType.bip44,
|
|
toPaymentCode: other,
|
|
);
|
|
addresses.add(address);
|
|
|
|
final count = await getTxCount(address: address.value);
|
|
|
|
if (count > 0) {
|
|
receivingGapCounter++;
|
|
} else {
|
|
receivingGapCounter = 0;
|
|
}
|
|
}
|
|
|
|
if (outgoingGapCounter < maxUnusedAddressGap) {
|
|
final pair = paymentAddress.getReceiveAddressKeyPair();
|
|
final address = generatePaynymReceivingAddressFromKeyPair(
|
|
pair: pair,
|
|
derivationIndex: i,
|
|
derivePathType: DerivePathType.bip44,
|
|
fromPaymentCode: other,
|
|
);
|
|
addresses.add(address);
|
|
|
|
final count = await getTxCount(address: address.value);
|
|
|
|
if (count > 0) {
|
|
outgoingGapCounter++;
|
|
} else {
|
|
outgoingGapCounter = 0;
|
|
}
|
|
}
|
|
}
|
|
await db.putAddresses(addresses);
|
|
}
|
|
|
|
Address generatePaynymSendAddressFromKeyPair({
|
|
required btc_dart.ECPair pair,
|
|
required int derivationIndex,
|
|
required DerivePathType derivePathType,
|
|
required PaymentCode toPaymentCode,
|
|
}) {
|
|
final data = btc_dart.PaymentData(pubkey: pair.publicKey);
|
|
|
|
String addressString;
|
|
switch (derivePathType) {
|
|
case DerivePathType.bip44:
|
|
addressString =
|
|
btc_dart.P2PKH(data: data, network: network).data.address!;
|
|
break;
|
|
|
|
// The following doesn't apply currently
|
|
// case DerivePathType.bip49:
|
|
// addressString = btc_dart
|
|
// .P2SH(
|
|
// data: btc_dart.PaymentData(
|
|
// redeem: btc_dart
|
|
// .P2WPKH(
|
|
// data: data,
|
|
// network: network,
|
|
// )
|
|
// .data),
|
|
// network: network,
|
|
// )
|
|
// .data
|
|
// .address!;
|
|
// break;
|
|
//
|
|
// case DerivePathType.bip84:
|
|
// addressString = btc_dart
|
|
// .P2WPKH(
|
|
// network: network,
|
|
// data: data,
|
|
// )
|
|
// .data
|
|
// .address!;
|
|
// break;
|
|
default:
|
|
throw UnimplementedError("segwit paynyms not implemented yet");
|
|
}
|
|
|
|
final address = Address(
|
|
walletId: walletId,
|
|
value: addressString,
|
|
publicKey: pair.publicKey,
|
|
derivationIndex: derivationIndex,
|
|
type: AddressType.nonWallet,
|
|
subType: AddressSubType.paynymSend,
|
|
otherData: toPaymentCode.toString(),
|
|
);
|
|
|
|
return address;
|
|
}
|
|
|
|
Address generatePaynymReceivingAddressFromKeyPair({
|
|
required btc_dart.ECPair pair,
|
|
required int derivationIndex,
|
|
required DerivePathType derivePathType,
|
|
required PaymentCode fromPaymentCode,
|
|
}) {
|
|
final data = btc_dart.PaymentData(pubkey: pair.publicKey);
|
|
|
|
String addressString;
|
|
AddressType addrType;
|
|
switch (derivePathType) {
|
|
case DerivePathType.bip44:
|
|
addressString = btc_dart
|
|
.P2PKH(
|
|
data: data,
|
|
network: network,
|
|
)
|
|
.data
|
|
.address!;
|
|
addrType = AddressType.p2pkh;
|
|
break;
|
|
|
|
// The following doesn't apply currently
|
|
// case DerivePathType.bip49:
|
|
// addressString = btc_dart
|
|
// .P2SH(
|
|
// data: btc_dart.PaymentData(
|
|
// redeem: btc_dart
|
|
// .P2WPKH(
|
|
// data: data,
|
|
// network: network,
|
|
// )
|
|
// .data),
|
|
// network: network,
|
|
// )
|
|
// .data
|
|
// .address!;
|
|
// addrType = AddressType.p2sh;
|
|
// break;
|
|
//
|
|
// case DerivePathType.bip84:
|
|
// addressString = btc_dart
|
|
// .P2WPKH(
|
|
// network: network,
|
|
// data: data,
|
|
// )
|
|
// .data
|
|
// .address!;
|
|
// addrType = AddressType.p2wpkh;
|
|
// break;
|
|
default:
|
|
throw UnimplementedError("segwit paynyms not implemented yet");
|
|
}
|
|
|
|
final address = Address(
|
|
walletId: walletId,
|
|
value: addressString,
|
|
publicKey: pair.publicKey,
|
|
derivationIndex: derivationIndex,
|
|
type: addrType,
|
|
subType: AddressSubType.paynymReceive,
|
|
otherData: fromPaymentCode.toString(),
|
|
);
|
|
|
|
return address;
|
|
}
|
|
|
|
Future<Address> getMyNotificationAddress(
|
|
DerivePathType derivePathType,
|
|
) async {
|
|
// TODO: fix when segwit is here
|
|
derivePathType = DerivePathType.bip44;
|
|
|
|
AddressType type;
|
|
switch (derivePathType) {
|
|
case DerivePathType.bip44:
|
|
type = AddressType.p2pkh;
|
|
break;
|
|
case DerivePathType.bip49:
|
|
type = AddressType.p2sh;
|
|
break;
|
|
case DerivePathType.bip84:
|
|
type = AddressType.p2wpkh;
|
|
break;
|
|
}
|
|
|
|
final storedAddress = await db
|
|
.getAddresses(walletId)
|
|
.filter()
|
|
.subTypeEqualTo(AddressSubType.paynymNotification)
|
|
.and()
|
|
.typeEqualTo(type)
|
|
.and()
|
|
.not()
|
|
.typeEqualTo(AddressType.nonWallet)
|
|
.findFirst();
|
|
|
|
if (storedAddress != null) {
|
|
return storedAddress;
|
|
} else {
|
|
final root = await getRootNode(mnemonic: await getMnemonic());
|
|
final node = root.derivePath(kPaynymDerivePath);
|
|
final paymentCode = PaymentCode.initFromPubKey(
|
|
node.publicKey,
|
|
node.chainCode,
|
|
network,
|
|
);
|
|
|
|
String addressString;
|
|
final data =
|
|
btc_dart.PaymentData(pubkey: paymentCode.notificationPublicKey());
|
|
switch (derivePathType) {
|
|
case DerivePathType.bip44:
|
|
addressString = btc_dart
|
|
.P2PKH(
|
|
data: data,
|
|
network: network,
|
|
)
|
|
.data
|
|
.address!;
|
|
break;
|
|
// case DerivePathType.bip49:
|
|
// addressString = btc_dart
|
|
// .P2SH(
|
|
// data: btc_dart.PaymentData(
|
|
// redeem: btc_dart
|
|
// .P2WPKH(
|
|
// data: data,
|
|
// network: network,
|
|
// )
|
|
// .data),
|
|
// network: network,
|
|
// )
|
|
// .data
|
|
// .address!;
|
|
// break;
|
|
// case DerivePathType.bip84:
|
|
// addressString = btc_dart
|
|
// .P2WPKH(
|
|
// network: network,
|
|
// data: data,
|
|
// )
|
|
// .data
|
|
// .address!;
|
|
// break;
|
|
default:
|
|
throw UnimplementedError("segwit paynyms not implemented yet");
|
|
}
|
|
|
|
final address = Address(
|
|
walletId: walletId,
|
|
value: addressString,
|
|
publicKey: paymentCode.getPubKey(),
|
|
derivationIndex: 0,
|
|
type: type,
|
|
subType: AddressSubType.paynymNotification,
|
|
otherData: paymentCode.toString(),
|
|
);
|
|
|
|
await db.putAddress(address);
|
|
return address;
|
|
}
|
|
}
|
|
}
|