mirror of
https://github.com/cake-tech/cake_wallet.git
synced 2024-12-23 12:09:43 +00:00
1259 lines
42 KiB
Dart
1259 lines
42 KiB
Dart
import 'dart:async';
|
|
import 'dart:convert';
|
|
import 'dart:io';
|
|
import 'dart:isolate';
|
|
import 'dart:math';
|
|
|
|
import 'package:http/http.dart' as http;
|
|
import 'package:cw_core/unspent_coins_info.dart';
|
|
import 'package:hive/hive.dart';
|
|
import 'package:cw_bitcoin/electrum_wallet_addresses.dart';
|
|
import 'package:mobx/mobx.dart';
|
|
import 'package:rxdart/subjects.dart';
|
|
import 'package:flutter/foundation.dart';
|
|
import 'package:bitcoin_flutter/bitcoin_flutter.dart' as bitcoin;
|
|
import 'package:collection/collection.dart';
|
|
import 'package:cw_bitcoin/address_to_output_script.dart';
|
|
import 'package:cw_bitcoin/bitcoin_address_record.dart';
|
|
import 'package:cw_bitcoin/bitcoin_transaction_credentials.dart';
|
|
import 'package:cw_bitcoin/bitcoin_transaction_no_inputs_exception.dart';
|
|
import 'package:cw_bitcoin/bitcoin_transaction_priority.dart';
|
|
import 'package:cw_bitcoin/bitcoin_transaction_wrong_balance_exception.dart';
|
|
import 'package:cw_bitcoin/bitcoin_unspent.dart';
|
|
import 'package:cw_bitcoin/bitcoin_wallet_keys.dart';
|
|
import 'package:cw_bitcoin/electrum.dart';
|
|
import 'package:cw_bitcoin/electrum_balance.dart';
|
|
import 'package:cw_bitcoin/electrum_transaction_history.dart';
|
|
import 'package:cw_bitcoin/electrum_transaction_info.dart';
|
|
import 'package:cw_bitcoin/file.dart';
|
|
import 'package:cw_bitcoin/pending_bitcoin_transaction.dart';
|
|
import 'package:cw_bitcoin/script_hash.dart';
|
|
import 'package:cw_bitcoin/utils.dart';
|
|
import 'package:cw_core/crypto_currency.dart';
|
|
import 'package:cw_core/node.dart';
|
|
import 'package:cw_core/pathForWallet.dart';
|
|
import 'package:cw_core/pending_transaction.dart';
|
|
import 'package:cw_core/sync_status.dart';
|
|
import 'package:cw_core/transaction_priority.dart';
|
|
import 'package:cw_core/wallet_base.dart';
|
|
import 'package:cw_core/wallet_info.dart';
|
|
import 'package:hex/hex.dart';
|
|
|
|
part 'electrum_wallet.g.dart';
|
|
|
|
class ElectrumWallet = ElectrumWalletBase with _$ElectrumWallet;
|
|
|
|
abstract class ElectrumWalletBase
|
|
extends WalletBase<ElectrumBalance, ElectrumTransactionHistory, ElectrumTransactionInfo>
|
|
with Store {
|
|
ElectrumWalletBase(
|
|
{required String password,
|
|
required WalletInfo walletInfo,
|
|
required Box<UnspentCoinsInfo> unspentCoinsInfo,
|
|
required this.networkType,
|
|
required this.mnemonic,
|
|
required Uint8List seedBytes,
|
|
required ElectrumTransactionHistory transactionHistory,
|
|
List<BitcoinAddressRecord>? initialAddresses,
|
|
ElectrumClient? electrumClient,
|
|
ElectrumBalance? initialBalance,
|
|
CryptoCurrency? currency})
|
|
: hd = currency == CryptoCurrency.bch
|
|
? bitcoinCashHDWallet(seedBytes)
|
|
: bitcoin.HDWallet.fromSeed(seedBytes, network: networkType).derivePath("m/0'/0"),
|
|
syncStatus = NotConnectedSyncStatus(),
|
|
_password = password,
|
|
_feeRates = <int>[],
|
|
_isTransactionUpdating = false,
|
|
unspentCoins = [],
|
|
_scripthashesUpdateSubject = {},
|
|
balance = ObservableMap<CryptoCurrency, ElectrumBalance>.of(currency != null
|
|
? {
|
|
currency:
|
|
initialBalance ?? const ElectrumBalance(confirmed: 0, unconfirmed: 0, frozen: 0)
|
|
}
|
|
: {}),
|
|
this.unspentCoinsInfo = unspentCoinsInfo,
|
|
super(walletInfo) {
|
|
this.electrumClient = electrumClient ?? ElectrumClient();
|
|
this.walletInfo = walletInfo;
|
|
this.transactionHistory = transactionHistory;
|
|
}
|
|
|
|
static bitcoin.HDWallet bitcoinCashHDWallet(Uint8List seedBytes) =>
|
|
bitcoin.HDWallet.fromSeed(seedBytes).derivePath("m/44'/145'/0'/0");
|
|
|
|
static int estimatedTransactionSize(int inputsCount, int outputsCounts) =>
|
|
inputsCount * 146 + outputsCounts * 33 + 8;
|
|
|
|
final bitcoin.HDWallet hd;
|
|
final String mnemonic;
|
|
|
|
late ElectrumClient electrumClient;
|
|
Box<UnspentCoinsInfo> unspentCoinsInfo;
|
|
|
|
@override
|
|
late ElectrumWalletAddresses walletAddresses;
|
|
|
|
@override
|
|
@observable
|
|
late ObservableMap<CryptoCurrency, ElectrumBalance> balance;
|
|
|
|
@override
|
|
@observable
|
|
SyncStatus syncStatus;
|
|
|
|
List<String> get scriptHashes => walletAddresses.addresses
|
|
.map((addr) => scriptHash(addr.address, networkType: networkType))
|
|
.toList();
|
|
|
|
List<String> get publicScriptHashes => walletAddresses.addresses
|
|
.where((addr) => !addr.isHidden)
|
|
.map((addr) => scriptHash(addr.address, networkType: networkType))
|
|
.toList();
|
|
|
|
String get xpub => hd.base58!;
|
|
|
|
@override
|
|
String get seed => mnemonic;
|
|
|
|
@override
|
|
String get password => _password;
|
|
|
|
bitcoin.NetworkType networkType;
|
|
|
|
@override
|
|
BitcoinWalletKeys get keys =>
|
|
BitcoinWalletKeys(wif: hd.wif!, privateKey: hd.privKey!, publicKey: hd.pubKey!);
|
|
|
|
String _password;
|
|
List<BitcoinUnspent> unspentCoins;
|
|
List<int> _feeRates;
|
|
Map<String, BehaviorSubject<Object>?> _scripthashesUpdateSubject;
|
|
BehaviorSubject<Object>? _chainTipUpdateSubject;
|
|
bool _isTransactionUpdating;
|
|
Future<Isolate>? _isolate;
|
|
|
|
void Function(FlutterErrorDetails)? _onError;
|
|
Timer? _autoSaveTimer;
|
|
static const int _autoSaveInterval = 30;
|
|
|
|
Future<void> init() async {
|
|
await walletAddresses.init();
|
|
await transactionHistory.init();
|
|
|
|
_autoSaveTimer =
|
|
Timer.periodic(Duration(seconds: _autoSaveInterval), (_) async => await save());
|
|
}
|
|
|
|
@action
|
|
Future<void> _setListeners(int height, {int? chainTip}) async {
|
|
final currentChainTip = chainTip ?? await electrumClient.getCurrentBlockChainTip() ?? 0;
|
|
syncStatus = AttemptingSyncStatus();
|
|
|
|
if (_isolate != null) {
|
|
final runningIsolate = await _isolate!;
|
|
runningIsolate.kill(priority: Isolate.immediate);
|
|
}
|
|
|
|
final receivePort = ReceivePort();
|
|
_isolate = Isolate.spawn(
|
|
startRefresh,
|
|
ScanData(
|
|
sendPort: receivePort.sendPort,
|
|
silentAddress: walletAddresses.silentAddress!.toString(),
|
|
scanPrivkeyCompressed:
|
|
walletAddresses.silentAddress!.scanPrivkey.toCompressedHex().fromHex,
|
|
spendPubkeyCompressed:
|
|
walletAddresses.silentAddress!.spendPubkey.toCompressedHex().fromHex,
|
|
networkType: networkType,
|
|
height: height,
|
|
chainTip: currentChainTip,
|
|
electrumClient: ElectrumClient(),
|
|
transactionHistoryIds: transactionHistory.transactions.keys.toList(),
|
|
node: electrumClient.uri.toString(),
|
|
));
|
|
|
|
await for (var message in receivePort) {
|
|
if (message is BitcoinUnspent) {
|
|
unspentCoins.add(message);
|
|
_addCoinInfo(message);
|
|
await walletInfo.save();
|
|
await save();
|
|
|
|
_subscribeForUpdates();
|
|
}
|
|
|
|
// check if is a SyncStatus type since "is SyncStatus" doesn't work here
|
|
if (message is SyncResponse) {
|
|
syncStatus = message.syncStatus;
|
|
walletInfo.restoreHeight = message.height;
|
|
await walletInfo.save();
|
|
}
|
|
}
|
|
}
|
|
|
|
@action
|
|
@override
|
|
Future<void> startSync() async {
|
|
try {
|
|
await _setInitialHeight();
|
|
} catch (_) {}
|
|
|
|
try {
|
|
rescan(height: walletInfo.restoreHeight);
|
|
|
|
await walletAddresses.discoverAddresses();
|
|
await updateTransactions();
|
|
_subscribeForUpdates();
|
|
await updateUnspent();
|
|
await updateBalance();
|
|
_feeRates = await electrumClient.feeRates();
|
|
|
|
Timer.periodic(
|
|
const Duration(minutes: 1), (timer) async => _feeRates = await electrumClient.feeRates());
|
|
} catch (e, stacktrace) {
|
|
print(stacktrace);
|
|
print(e.toString());
|
|
syncStatus = FailedSyncStatus();
|
|
}
|
|
}
|
|
|
|
@action
|
|
@override
|
|
Future<void> connectToNode({required Node node}) async {
|
|
try {
|
|
syncStatus = ConnectingSyncStatus();
|
|
await electrumClient.connectToUri(node.uri);
|
|
electrumClient.onConnectionStatusChange = (bool isConnected) {
|
|
if (!isConnected) {
|
|
syncStatus = LostConnectionSyncStatus();
|
|
}
|
|
};
|
|
syncStatus = ConnectedSyncStatus();
|
|
|
|
final currentChainTip = await electrumClient.getCurrentBlockChainTip();
|
|
|
|
if ((currentChainTip ?? 0) > walletInfo.restoreHeight) {
|
|
_setListeners(walletInfo.restoreHeight, chainTip: currentChainTip);
|
|
}
|
|
} catch (e) {
|
|
print(e.toString());
|
|
syncStatus = FailedSyncStatus();
|
|
}
|
|
}
|
|
|
|
@override
|
|
Future<PendingTransaction> createTransaction(Object credentials) async {
|
|
try {
|
|
if (unspentCoins.isEmpty) {
|
|
await updateUnspent();
|
|
}
|
|
|
|
final inputs = <BitcoinUnspent>[];
|
|
var allInputsAmount = 0;
|
|
|
|
for (int i = 0; i < unspentCoins.length; i++) {
|
|
final utx = unspentCoins[i];
|
|
if (utx.isSending) {
|
|
allInputsAmount += utx.value;
|
|
inputs.add(utx);
|
|
}
|
|
}
|
|
|
|
if (inputs.isEmpty) {
|
|
throw BitcoinTransactionNoInputsException();
|
|
}
|
|
|
|
final minAmount = networkType == bitcoin.testnet ? 0 : 546;
|
|
final transactionCredentials = credentials as BitcoinTransactionCredentials;
|
|
final outputs = transactionCredentials.outputs;
|
|
final hasMultiDestination = outputs.length > 1;
|
|
|
|
final allAmountFee = transactionCredentials.feeRate != null
|
|
? feeAmountWithFeeRate(transactionCredentials.feeRate!, inputs.length, outputs.length)
|
|
: feeAmountForPriority(transactionCredentials.priority!, inputs.length, outputs.length);
|
|
|
|
final allAmount = allInputsAmount - allAmountFee;
|
|
|
|
var credentialsAmount = 0;
|
|
var amount = 0;
|
|
var fee = 0;
|
|
|
|
if (hasMultiDestination) {
|
|
if (outputs.any((item) => item.sendAll || item.formattedCryptoAmount! <= 0)) {
|
|
throw BitcoinTransactionWrongBalanceException(currency);
|
|
}
|
|
|
|
credentialsAmount = outputs.fold(0, (acc, value) => acc + value.formattedCryptoAmount!);
|
|
|
|
if (allAmount - credentialsAmount < minAmount) {
|
|
throw BitcoinTransactionWrongBalanceException(currency);
|
|
}
|
|
|
|
amount = credentialsAmount;
|
|
|
|
if (transactionCredentials.feeRate != null) {
|
|
fee = calculateEstimatedFeeWithFeeRate(transactionCredentials.feeRate!, amount,
|
|
outputsCount: outputs.length + 1);
|
|
} else {
|
|
fee = calculateEstimatedFee(transactionCredentials.priority, amount,
|
|
outputsCount: outputs.length + 1);
|
|
}
|
|
} else {
|
|
final output = outputs.first;
|
|
credentialsAmount = !output.sendAll ? output.formattedCryptoAmount! : 0;
|
|
|
|
if (credentialsAmount > allAmount) {
|
|
throw BitcoinTransactionWrongBalanceException(currency);
|
|
}
|
|
|
|
amount = output.sendAll || allAmount - credentialsAmount < minAmount
|
|
? allAmount
|
|
: credentialsAmount;
|
|
|
|
if (output.sendAll || amount == allAmount) {
|
|
fee = allAmountFee;
|
|
} else if (transactionCredentials.feeRate != null) {
|
|
fee = calculateEstimatedFeeWithFeeRate(transactionCredentials.feeRate!, amount);
|
|
} else {
|
|
fee = calculateEstimatedFee(transactionCredentials.priority, amount);
|
|
}
|
|
}
|
|
|
|
if (fee == 0 && networkType == bitcoin.bitcoin) {
|
|
throw BitcoinTransactionWrongBalanceException(currency);
|
|
}
|
|
|
|
if (networkType == bitcoin.testnet) {
|
|
fee += 50;
|
|
amount -= 50;
|
|
}
|
|
|
|
final totalAmount = amount + fee;
|
|
|
|
if ((totalAmount > balance[currency]!.confirmed || totalAmount > allInputsAmount) &&
|
|
networkType == bitcoin.bitcoin) {
|
|
throw BitcoinTransactionWrongBalanceException(currency);
|
|
}
|
|
|
|
final changeAddress = await walletAddresses.getChangeAddress();
|
|
var leftAmount = totalAmount;
|
|
var totalInputAmount = 0;
|
|
|
|
final txb = bitcoin.TransactionBuilder(network: networkType, version: 1);
|
|
|
|
List<bitcoin.PrivateKeyInfo> inputPrivKeys = [];
|
|
List<bitcoin.Outpoint> outpoints = [];
|
|
|
|
List<int>? amounts;
|
|
List<Uint8List>? scriptPubKeys;
|
|
|
|
final curve = bitcoin.getSecp256k1();
|
|
|
|
for (int i = 0; i < inputs.length; i++) {
|
|
final utx = inputs[i];
|
|
leftAmount = leftAmount - utx.value;
|
|
totalInputAmount += utx.value;
|
|
|
|
if (amounts == null) {
|
|
amounts = [];
|
|
}
|
|
amounts.add(utx.value);
|
|
|
|
outpoints.add(bitcoin.Outpoint(txid: utx.hash, index: utx.vout));
|
|
|
|
if (utx.bitcoinAddressRecord.silentPaymentTweak != null) {
|
|
// https://github.com/bitcoin/bips/blob/c55f80c53c98642357712c1839cfdc0551d531c4/bip-0352.mediawiki#user-content-Spending
|
|
final d = bitcoin.PrivateKey.fromHex(
|
|
curve, walletAddresses.silentAddress!.spendPrivkey.toCompressedHex())
|
|
.tweakAdd(utx.bitcoinAddressRecord.silentPaymentTweak!.fromHex.bigint)!;
|
|
|
|
inputPrivKeys.add(bitcoin.PrivateKeyInfo(d, utx.type == bitcoin.AddressType.p2tr));
|
|
|
|
final p2tr = bitcoin.P2trAddress(pubkey: d.publicKey.toHex(), network: networkType);
|
|
|
|
bitcoin.ECPair keyPair = bitcoin.ECPair.fromPrivateKey(d.toCompressedHex().fromHex,
|
|
compressed: true, network: networkType);
|
|
|
|
final script = p2tr.toScriptPubKey().toBytes();
|
|
|
|
txb.addInput(utx.hash, utx.vout, null, script, keyPair, utx.value);
|
|
|
|
if (scriptPubKeys == null) {
|
|
scriptPubKeys = [];
|
|
}
|
|
scriptPubKeys.add(script);
|
|
|
|
continue;
|
|
}
|
|
|
|
if ((utx.type == bitcoin.AddressType.p2tr) ||
|
|
bitcoin.P2trAddress.REGEX.hasMatch(utx.address)) {
|
|
bitcoin.ECPair keyPair = generateKeyPair(
|
|
hd: utx.bitcoinAddressRecord.isHidden
|
|
? walletAddresses.sideHd
|
|
: walletAddresses.mainHd,
|
|
index: utx.bitcoinAddressRecord.index,
|
|
network: networkType);
|
|
|
|
inputPrivKeys.add(bitcoin.PrivateKeyInfo(
|
|
bitcoin.PrivateKey.fromHex(curve, keyPair.privateKey!.hex),
|
|
utx.type == bitcoin.AddressType.p2tr));
|
|
|
|
final p2tr = bitcoin.P2trAddress(pubkey: keyPair.publicKey.hex, network: networkType);
|
|
final script = p2tr.toScriptPubKey().toBytes();
|
|
|
|
txb.addInput(utx.hash, utx.vout, null, script, keyPair, utx.value);
|
|
|
|
if (scriptPubKeys == null) {
|
|
scriptPubKeys = [];
|
|
}
|
|
scriptPubKeys.add(script);
|
|
|
|
continue;
|
|
}
|
|
|
|
bitcoin.ECPair keyPair = generateKeyPair(
|
|
hd: utx.bitcoinAddressRecord.isHidden ? walletAddresses.sideHd : walletAddresses.mainHd,
|
|
index: utx.bitcoinAddressRecord.index,
|
|
network: networkType);
|
|
|
|
inputPrivKeys.add(bitcoin.PrivateKeyInfo(
|
|
bitcoin.PrivateKey.fromHex(curve, keyPair.privateKey!.hex),
|
|
utx.type == bitcoin.AddressType.p2tr));
|
|
|
|
if (utx.isP2wpkh) {
|
|
final p2wpkh = bitcoin
|
|
.P2WPKH(
|
|
data: generatePaymentData(
|
|
hd: utx.bitcoinAddressRecord.isHidden
|
|
? walletAddresses.sideHd
|
|
: walletAddresses.mainHd,
|
|
index: utx.bitcoinAddressRecord.index),
|
|
network: networkType)
|
|
.data;
|
|
|
|
final script = p2wpkh.output;
|
|
txb.addInput(utx.hash, utx.vout, null, script, keyPair, utx.value);
|
|
|
|
if (scriptPubKeys == null) {
|
|
scriptPubKeys = [];
|
|
}
|
|
if (script != null) scriptPubKeys.add(script);
|
|
|
|
continue;
|
|
}
|
|
|
|
txb.addInput(utx.hash, utx.vout, null, null, keyPair, utx.value);
|
|
|
|
if (leftAmount <= 0) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (txb.inputs.isEmpty) {
|
|
throw BitcoinTransactionNoInputsException();
|
|
}
|
|
|
|
if ((amount <= 0 || totalInputAmount < totalAmount) && networkType == bitcoin.bitcoin) {
|
|
throw BitcoinTransactionWrongBalanceException(currency);
|
|
}
|
|
|
|
List<bitcoin.SilentPaymentDestination> silentPaymentDestinations = [];
|
|
outputs.forEach((item) {
|
|
final outputAmount = hasMultiDestination ? item.formattedCryptoAmount : amount;
|
|
final outputAddress = item.isParsedAddress ? item.extractedAddress! : item.address;
|
|
|
|
if (bitcoin.SilentPaymentAddress.REGEX.hasMatch(outputAddress)) {
|
|
// Add all silent payment destinations to a list and generate outputs later
|
|
silentPaymentDestinations
|
|
.add(bitcoin.SilentPaymentDestination.fromAddress(outputAddress, outputAmount!));
|
|
} else {
|
|
// Add all non-silent payment destinations to the transaction
|
|
txb.addOutput(addressToOutputScript(outputAddress, networkType), outputAmount!);
|
|
}
|
|
});
|
|
|
|
if (silentPaymentDestinations.isNotEmpty) {
|
|
final outpointsHash = bitcoin.SilentPayment.hashOutpoints(outpoints);
|
|
final generatedOutputs = bitcoin.SilentPayment.generateMultipleRecipientPubkeys(
|
|
inputPrivKeys, outpointsHash, silentPaymentDestinations);
|
|
|
|
generatedOutputs.forEach((recipientSilentAddress, generatedOutput) {
|
|
generatedOutput.forEach((output) {
|
|
txb.addOutput(
|
|
bitcoin.P2trAddress(
|
|
program: bitcoin.ECPublic.fromHex(output.$1.toHex()).toTapPoint(),
|
|
network: networkType)
|
|
.toScriptPubKey()
|
|
.toBytes(),
|
|
output.$2);
|
|
});
|
|
});
|
|
}
|
|
|
|
final estimatedSize = estimatedTransactionSize(inputs.length, outputs.length + 1);
|
|
var feeAmount = 0;
|
|
|
|
if (transactionCredentials.feeRate != null) {
|
|
feeAmount = transactionCredentials.feeRate! * estimatedSize;
|
|
} else {
|
|
feeAmount = feeRate(transactionCredentials.priority!) * estimatedSize;
|
|
}
|
|
|
|
final changeValue = totalInputAmount - amount - feeAmount;
|
|
|
|
if (changeValue > minAmount) {
|
|
txb.addOutput(changeAddress, changeValue);
|
|
}
|
|
|
|
for (var i = 0; i < inputs.length; i++) {
|
|
txb.sign(vin: i, amounts: amounts, scriptPubKeys: scriptPubKeys, inputs: inputs);
|
|
}
|
|
|
|
return PendingBitcoinTransaction(txb.build(), type,
|
|
electrumClient: electrumClient, amount: amount, fee: fee, networkType: networkType)
|
|
..addListener((transaction) async {
|
|
transactionHistory.addOne(transaction);
|
|
await updateBalance();
|
|
});
|
|
} catch (e, stacktrace) {
|
|
print(stacktrace);
|
|
print(e.toString());
|
|
rethrow;
|
|
}
|
|
}
|
|
|
|
String toJSON() => json.encode({
|
|
'mnemonic': mnemonic,
|
|
'account_index': walletAddresses.currentReceiveAddressIndex.toString(),
|
|
'change_address_index': walletAddresses.currentChangeAddressIndex.toString(),
|
|
'addresses': walletAddresses.addresses.map((addr) => addr.toJSON()).toList(),
|
|
'balance': balance[currency]?.toJSON(),
|
|
'network_type': networkType == bitcoin.bitcoin ? 'mainnet' : 'testnet',
|
|
});
|
|
|
|
int feeRate(TransactionPriority priority) {
|
|
try {
|
|
if (priority is BitcoinTransactionPriority) {
|
|
return _feeRates[priority.raw];
|
|
}
|
|
|
|
return 0;
|
|
} catch (_) {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
int feeAmountForPriority(
|
|
BitcoinTransactionPriority priority, int inputsCount, int outputsCount) =>
|
|
feeRate(priority) * estimatedTransactionSize(inputsCount, outputsCount);
|
|
|
|
int feeAmountWithFeeRate(int feeRate, int inputsCount, int outputsCount) =>
|
|
feeRate * estimatedTransactionSize(inputsCount, outputsCount);
|
|
|
|
@override
|
|
int calculateEstimatedFee(TransactionPriority? priority, int? amount, {int? outputsCount}) {
|
|
if (priority is BitcoinTransactionPriority) {
|
|
return calculateEstimatedFeeWithFeeRate(feeRate(priority), amount,
|
|
outputsCount: outputsCount);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int calculateEstimatedFeeWithFeeRate(int feeRate, int? amount, {int? outputsCount}) {
|
|
int inputsCount = 0;
|
|
|
|
if (amount != null) {
|
|
int totalValue = 0;
|
|
|
|
for (final input in unspentCoins) {
|
|
if (totalValue >= amount) {
|
|
break;
|
|
}
|
|
|
|
if (input.isSending) {
|
|
totalValue += input.value;
|
|
inputsCount += 1;
|
|
}
|
|
}
|
|
|
|
if (totalValue < amount) return 0;
|
|
} else {
|
|
for (final input in unspentCoins) {
|
|
if (input.isSending) {
|
|
inputsCount += 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
// If send all, then we have no change value
|
|
final _outputsCount = outputsCount ?? (amount != null ? 2 : 1);
|
|
|
|
return feeAmountWithFeeRate(feeRate, inputsCount, _outputsCount);
|
|
}
|
|
|
|
@override
|
|
Future<void> save() async {
|
|
final path = await makePath();
|
|
await write(path: path, password: _password, data: toJSON());
|
|
await transactionHistory.save();
|
|
}
|
|
|
|
@override
|
|
Future<void> renameWalletFiles(String newWalletName) async {
|
|
final currentWalletPath = await pathForWallet(name: walletInfo.name, type: type);
|
|
final currentWalletFile = File(currentWalletPath);
|
|
|
|
final currentDirPath = await pathForWalletDir(name: walletInfo.name, type: type);
|
|
final currentTransactionsFile = File('$currentDirPath/$transactionsHistoryFileName');
|
|
|
|
// Copies current wallet files into new wallet name's dir and files
|
|
if (currentWalletFile.existsSync()) {
|
|
final newWalletPath = await pathForWallet(name: newWalletName, type: type);
|
|
await currentWalletFile.copy(newWalletPath);
|
|
}
|
|
if (currentTransactionsFile.existsSync()) {
|
|
final newDirPath = await pathForWalletDir(name: newWalletName, type: type);
|
|
await currentTransactionsFile.copy('$newDirPath/$transactionsHistoryFileName');
|
|
}
|
|
|
|
// Delete old name's dir and files
|
|
await Directory(currentDirPath).delete(recursive: true);
|
|
}
|
|
|
|
@override
|
|
Future<void> changePassword(String password) async {
|
|
_password = password;
|
|
await save();
|
|
await transactionHistory.changePassword(password);
|
|
}
|
|
|
|
bitcoin.ECPair keyPairFor({required int index}) =>
|
|
generateKeyPair(hd: hd, index: index, network: networkType);
|
|
|
|
@action
|
|
@override
|
|
Future<void> rescan({required int height, int? chainTip, ScanData? scanData}) async {
|
|
_setListeners(height);
|
|
}
|
|
|
|
@override
|
|
Future<void> close() async {
|
|
try {
|
|
await electrumClient.close();
|
|
} catch (_) {}
|
|
_autoSaveTimer?.cancel();
|
|
}
|
|
|
|
Future<String> makePath() async => pathForWallet(name: walletInfo.name, type: walletInfo.type);
|
|
|
|
Future<void> updateUnspent() async {
|
|
final unspent = await Future.wait(walletAddresses.addresses.map((address) => electrumClient
|
|
.getListUnspentWithAddress(address.address, networkType)
|
|
.then((unspent) => unspent.map((unspent) {
|
|
try {
|
|
return BitcoinUnspent.fromJSON(address, unspent);
|
|
} catch (_) {
|
|
return null;
|
|
}
|
|
}).whereNotNull())));
|
|
unspent.expand((e) => e).forEach((newUnspent) {
|
|
try {
|
|
if (!unspentCoins.any((currentUnspent) =>
|
|
currentUnspent.address.contains(newUnspent.address) &&
|
|
currentUnspent.hash.contains(newUnspent.hash))) {
|
|
unspentCoins.add(newUnspent);
|
|
}
|
|
} catch (_) {}
|
|
});
|
|
|
|
if (unspentCoinsInfo.isEmpty) {
|
|
unspentCoins.forEach((coin) => _addCoinInfo(coin));
|
|
return;
|
|
}
|
|
|
|
if (unspentCoins.isNotEmpty) {
|
|
unspentCoins.forEach((coin) {
|
|
final coinInfoList = unspentCoinsInfo.values.where((element) =>
|
|
element.walletId.contains(id) &&
|
|
element.hash.contains(coin.hash) &&
|
|
element.address.contains(coin.address));
|
|
|
|
if (coinInfoList.isNotEmpty) {
|
|
final coinInfo = coinInfoList.first;
|
|
|
|
coin.isFrozen = coinInfo.isFrozen;
|
|
coin.isSending = coinInfo.isSending;
|
|
coin.note = coinInfo.note;
|
|
} else {
|
|
_addCoinInfo(coin);
|
|
}
|
|
});
|
|
}
|
|
|
|
await _refreshUnspentCoinsInfo();
|
|
}
|
|
|
|
@action
|
|
Future<void> _addCoinInfo(BitcoinUnspent coin) async {
|
|
final newInfo = UnspentCoinsInfo(
|
|
walletId: id,
|
|
hash: coin.hash,
|
|
isFrozen: coin.isFrozen,
|
|
isSending: coin.isSending,
|
|
noteRaw: coin.note,
|
|
address: coin.bitcoinAddressRecord.address,
|
|
value: coin.value,
|
|
vout: coin.vout,
|
|
isChange: coin.isChange,
|
|
);
|
|
|
|
await unspentCoinsInfo.add(newInfo);
|
|
}
|
|
|
|
Future<void> _refreshUnspentCoinsInfo() async {
|
|
try {
|
|
final List<dynamic> keys = <dynamic>[];
|
|
final currentWalletUnspentCoins =
|
|
unspentCoinsInfo.values.where((element) => element.walletId.contains(id));
|
|
|
|
if (currentWalletUnspentCoins.isNotEmpty) {
|
|
currentWalletUnspentCoins.forEach((element) {
|
|
final existUnspentCoins = unspentCoins.where((coin) => element.hash.contains(coin.hash));
|
|
|
|
if (existUnspentCoins.isEmpty) {
|
|
keys.add(element.key);
|
|
}
|
|
});
|
|
}
|
|
|
|
if (keys.isNotEmpty) {
|
|
await unspentCoinsInfo.deleteAll(keys);
|
|
}
|
|
} catch (e) {
|
|
print(e.toString());
|
|
}
|
|
}
|
|
|
|
@override
|
|
Future<Map<String, ElectrumTransactionInfo>> fetchTransactions() async {
|
|
final addressHashes = <String, BitcoinAddressRecord>{};
|
|
final normalizedHistories = <Map<String, dynamic>>[];
|
|
walletAddresses.addresses.forEach((addressRecord) {
|
|
final sh = scriptHash(addressRecord.address, networkType: networkType);
|
|
addressHashes[sh] = addressRecord;
|
|
});
|
|
final histories = addressHashes.keys.map((scriptHash) =>
|
|
electrumClient.getHistory(scriptHash).then((history) => {scriptHash: history}));
|
|
final historyResults = await Future.wait(histories);
|
|
historyResults.forEach((history) {
|
|
history.entries.forEach((historyItem) {
|
|
if (historyItem.value.isNotEmpty) {
|
|
final address = addressHashes[historyItem.key];
|
|
address?.setAsUsed();
|
|
normalizedHistories.addAll(historyItem.value);
|
|
}
|
|
});
|
|
});
|
|
final historiesWithDetails = await Future.wait(normalizedHistories.map((transaction) {
|
|
try {
|
|
return fetchTransactionInfo(
|
|
hash: transaction['tx_hash'] as String,
|
|
height: transaction['height'] as int,
|
|
electrumClient: electrumClient,
|
|
addressRecords: walletAddresses.addresses,
|
|
walletInfo: walletInfo,
|
|
networkType: networkType);
|
|
} catch (_) {
|
|
return Future.value(null);
|
|
}
|
|
}));
|
|
return historiesWithDetails
|
|
.fold<Map<String, ElectrumTransactionInfo>>(<String, ElectrumTransactionInfo>{}, (acc, tx) {
|
|
if (tx == null) {
|
|
return acc;
|
|
}
|
|
acc[tx.id] = acc[tx.id]?.updated(tx) ?? tx;
|
|
return acc;
|
|
});
|
|
}
|
|
|
|
Future<void> updateTransactions() async {
|
|
try {
|
|
if (_isTransactionUpdating) {
|
|
return;
|
|
}
|
|
|
|
_isTransactionUpdating = true;
|
|
final transactions = await fetchTransactions();
|
|
transactionHistory.addMany(transactions);
|
|
walletAddresses.updateReceiveAddresses();
|
|
await transactionHistory.save();
|
|
_isTransactionUpdating = false;
|
|
} catch (e, stacktrace) {
|
|
print(stacktrace);
|
|
print(e);
|
|
_isTransactionUpdating = false;
|
|
}
|
|
}
|
|
|
|
void _subscribeForUpdates() async {
|
|
scriptHashes.forEach((sh) async {
|
|
await _scripthashesUpdateSubject[sh]?.close();
|
|
_scripthashesUpdateSubject[sh] = electrumClient.scripthashUpdate(sh);
|
|
_scripthashesUpdateSubject[sh]?.listen((event) async {
|
|
try {
|
|
await updateUnspent();
|
|
await updateBalance();
|
|
await updateTransactions();
|
|
final currentHeight = await electrumClient.getCurrentBlockChainTip();
|
|
if (currentHeight != null) walletInfo.restoreHeight = currentHeight;
|
|
rescan(height: walletInfo.restoreHeight);
|
|
} catch (e, s) {
|
|
print(e.toString());
|
|
_onError?.call(FlutterErrorDetails(
|
|
exception: e,
|
|
stack: s,
|
|
library: this.runtimeType.toString(),
|
|
));
|
|
}
|
|
});
|
|
});
|
|
await _chainTipUpdateSubject?.close();
|
|
_chainTipUpdateSubject = electrumClient.chainTipUpdate();
|
|
_chainTipUpdateSubject!.listen((event) async {
|
|
try {
|
|
print(["NEW HEIGHT!", event]);
|
|
// _setListeners(walletInfo.restoreHeight, chainTip_setListeners: event);
|
|
} catch (e, s) {
|
|
print(e.toString());
|
|
_onError?.call(FlutterErrorDetails(
|
|
exception: e,
|
|
stack: s,
|
|
library: this.runtimeType.toString(),
|
|
));
|
|
}
|
|
});
|
|
}
|
|
|
|
Future<ElectrumBalance> _fetchBalances() async {
|
|
final addresses = walletAddresses.addresses.toList();
|
|
final balanceFutures = <Future<Map<String, dynamic>>>[];
|
|
for (var i = 0; i < addresses.length; i++) {
|
|
final addressRecord = addresses[i];
|
|
final sh = scriptHash(addressRecord.address, networkType: networkType);
|
|
final balanceFuture = electrumClient.getBalance(sh);
|
|
balanceFutures.add(balanceFuture);
|
|
}
|
|
|
|
var totalFrozen = 0;
|
|
unspentCoinsInfo.values.forEach((info) {
|
|
unspentCoins.forEach((element) {
|
|
if (element.hash == info.hash &&
|
|
info.isFrozen &&
|
|
element.bitcoinAddressRecord.address == info.address &&
|
|
element.value == info.value) {
|
|
totalFrozen += element.value;
|
|
}
|
|
});
|
|
});
|
|
|
|
final balances = await Future.wait(balanceFutures);
|
|
var totalConfirmed = 0;
|
|
var totalUnconfirmed = 0;
|
|
|
|
for (var i = 0; i < balances.length; i++) {
|
|
final addressRecord = addresses[i];
|
|
final balance = balances[i];
|
|
final confirmed = balance['confirmed'] as int? ?? 0;
|
|
final unconfirmed = balance['unconfirmed'] as int? ?? 0;
|
|
totalConfirmed += confirmed;
|
|
totalUnconfirmed += unconfirmed;
|
|
|
|
if (confirmed > 0 || unconfirmed > 0) {
|
|
addressRecord.setAsUsed();
|
|
}
|
|
}
|
|
|
|
return ElectrumBalance(
|
|
confirmed: totalConfirmed, unconfirmed: totalUnconfirmed, frozen: totalFrozen);
|
|
}
|
|
|
|
Future<void> updateBalance() async {
|
|
balance[currency] = await _fetchBalances();
|
|
await save();
|
|
}
|
|
|
|
String getChangeAddress() {
|
|
const minCountOfHiddenAddresses = 5;
|
|
final random = Random();
|
|
var addresses = walletAddresses.addresses.where((addr) => addr.isHidden).toList();
|
|
|
|
if (addresses.length < minCountOfHiddenAddresses) {
|
|
addresses = walletAddresses.addresses.toList();
|
|
}
|
|
|
|
return addresses[random.nextInt(addresses.length)].address;
|
|
}
|
|
|
|
@override
|
|
void setExceptionHandler(void Function(FlutterErrorDetails) onError) => _onError = onError;
|
|
|
|
@override
|
|
String signMessage(String message, {String? address = null}) {
|
|
final index = address != null
|
|
? walletAddresses.addresses.firstWhere((element) => element.address == address).index
|
|
: null;
|
|
return index == null
|
|
? base64Encode(hd.sign(message))
|
|
: base64Encode(hd.derive(index).sign(message));
|
|
}
|
|
|
|
Future<void> _setInitialHeight() async {
|
|
if (walletInfo.isRecovery) {
|
|
return;
|
|
}
|
|
|
|
if (walletInfo.restoreHeight == 0) {
|
|
final currentHeight = await electrumClient.getCurrentBlockChainTip();
|
|
if (currentHeight != null) walletInfo.restoreHeight = currentHeight;
|
|
}
|
|
}
|
|
}
|
|
|
|
Future<ElectrumTransactionInfo?> fetchTransactionInfo(
|
|
{required String hash,
|
|
required int height,
|
|
required ElectrumClient electrumClient,
|
|
required Iterable<BitcoinAddressRecord> addressRecords,
|
|
required WalletInfo walletInfo,
|
|
required bitcoin.NetworkType networkType}) async {
|
|
try {
|
|
final tx = await getTransactionExpanded(
|
|
hash: hash, height: height, electrumClient: electrumClient, networkType: networkType);
|
|
final addresses = addressRecords.map((addr) => addr.address).toSet();
|
|
return ElectrumTransactionInfo.fromElectrumBundle(tx, walletInfo.type, networkType,
|
|
addresses: addresses, height: height);
|
|
} catch (_) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
Future<ElectrumTransactionBundle> getTransactionExpanded(
|
|
{required String hash,
|
|
required int height,
|
|
required ElectrumClient electrumClient,
|
|
required bitcoin.NetworkType networkType}) async {
|
|
final verboseTransaction =
|
|
await electrumClient.getTransactionRaw(hash: hash, networkType: networkType);
|
|
|
|
String transactionHex;
|
|
int? time;
|
|
int confirmations = 0;
|
|
if (networkType.bech32 == bitcoin.testnet.bech32) {
|
|
transactionHex = verboseTransaction as String;
|
|
confirmations = 1;
|
|
} else {
|
|
transactionHex = verboseTransaction['hex'] as String;
|
|
time = verboseTransaction['time'] as int?;
|
|
confirmations = verboseTransaction['confirmations'] as int? ?? 0;
|
|
}
|
|
|
|
final original = bitcoin.Transaction.fromHex(transactionHex);
|
|
final ins = <bitcoin.Transaction>[];
|
|
|
|
for (final vin in original.ins) {
|
|
final id = HEX.encode(vin.hash!.reversed.toList());
|
|
final txHex = await electrumClient.getTransactionHex(hash: id);
|
|
final tx = bitcoin.Transaction.fromHex(txHex);
|
|
ins.add(tx);
|
|
}
|
|
|
|
return ElectrumTransactionBundle(original, ins: ins, time: time, confirmations: confirmations);
|
|
}
|
|
|
|
class ScanData {
|
|
final SendPort sendPort;
|
|
final Uint8List scanPrivkeyCompressed;
|
|
final Uint8List spendPubkeyCompressed;
|
|
final String silentAddress;
|
|
final int height;
|
|
final String node;
|
|
final bitcoin.NetworkType networkType;
|
|
final int chainTip;
|
|
final ElectrumClient electrumClient;
|
|
final List<String> transactionHistoryIds;
|
|
|
|
ScanData({
|
|
required this.sendPort,
|
|
required this.scanPrivkeyCompressed,
|
|
required this.spendPubkeyCompressed,
|
|
required this.silentAddress,
|
|
required this.height,
|
|
required this.node,
|
|
required this.networkType,
|
|
required this.chainTip,
|
|
required this.electrumClient,
|
|
required this.transactionHistoryIds,
|
|
});
|
|
|
|
factory ScanData.fromHeight(ScanData scanData, int newHeight) {
|
|
return ScanData(
|
|
sendPort: scanData.sendPort,
|
|
scanPrivkeyCompressed: scanData.scanPrivkeyCompressed,
|
|
spendPubkeyCompressed: scanData.spendPubkeyCompressed,
|
|
silentAddress: scanData.silentAddress,
|
|
height: newHeight,
|
|
node: scanData.node,
|
|
networkType: scanData.networkType,
|
|
chainTip: scanData.chainTip,
|
|
transactionHistoryIds: scanData.transactionHistoryIds,
|
|
electrumClient: scanData.electrumClient,
|
|
);
|
|
}
|
|
}
|
|
|
|
class SyncResponse {
|
|
final int height;
|
|
final SyncStatus syncStatus;
|
|
|
|
SyncResponse(this.height, this.syncStatus);
|
|
}
|
|
|
|
Future<void> startRefresh(ScanData scanData) async {
|
|
var cachedBlockchainHeight = scanData.chainTip;
|
|
|
|
Future<int> getNodeHeightOrUpdate(int baseHeight) async {
|
|
if (cachedBlockchainHeight < baseHeight || cachedBlockchainHeight == 0) {
|
|
final electrumClient = scanData.electrumClient;
|
|
if (!electrumClient.isConnected) {
|
|
final node = scanData.node;
|
|
await electrumClient.connectToUri(Uri.parse(node));
|
|
}
|
|
|
|
cachedBlockchainHeight =
|
|
await electrumClient.getCurrentBlockChainTip() ?? cachedBlockchainHeight;
|
|
}
|
|
|
|
return cachedBlockchainHeight;
|
|
}
|
|
|
|
var lastKnownBlockHeight = 0;
|
|
var initialSyncHeight = 0;
|
|
|
|
var syncHeight = scanData.height;
|
|
var currentChainTip = scanData.chainTip;
|
|
|
|
if (syncHeight <= 0) {
|
|
syncHeight = currentChainTip;
|
|
}
|
|
|
|
if (initialSyncHeight <= 0) {
|
|
initialSyncHeight = syncHeight;
|
|
}
|
|
|
|
if (lastKnownBlockHeight == syncHeight) {
|
|
scanData.sendPort.send(SyncResponse(currentChainTip, SyncedSyncStatus()));
|
|
return;
|
|
}
|
|
|
|
// Run this until no more blocks left to scan txs. At first this was recursive
|
|
// i.e. re-calling the startRefresh function but this was easier for the above values to retain
|
|
// their initial values
|
|
while (true) {
|
|
lastKnownBlockHeight = syncHeight;
|
|
|
|
final syncingStatus =
|
|
SyncingSyncStatus.fromHeightValues(currentChainTip, initialSyncHeight, syncHeight);
|
|
scanData.sendPort.send(SyncResponse(syncHeight, syncingStatus));
|
|
|
|
if (syncingStatus.blocksLeft <= 0) {
|
|
scanData.sendPort.send(SyncResponse(currentChainTip, SyncedSyncStatus()));
|
|
return;
|
|
}
|
|
|
|
print(["Scanning from height:", syncHeight]);
|
|
|
|
try {
|
|
final networkPath =
|
|
scanData.networkType.network == bitcoin.BtcNetwork.mainnet ? "" : "/testnet";
|
|
|
|
// This endpoint gets up to 10 latest blocks from the given height
|
|
final tenNewestBlocks =
|
|
(await http.get(Uri.parse("https://blockstream.info$networkPath/api/blocks/$syncHeight")))
|
|
.body;
|
|
var decodedBlocks = json.decode(tenNewestBlocks) as List<dynamic>;
|
|
|
|
decodedBlocks.sort((a, b) => (a["height"] as int).compareTo(b["height"] as int));
|
|
decodedBlocks =
|
|
decodedBlocks.where((element) => (element["height"] as int) >= syncHeight).toList();
|
|
|
|
// for each block, get up to 25 txs
|
|
for (var i = 0; i < decodedBlocks.length; i++) {
|
|
final blockJson = decodedBlocks[i];
|
|
final blockHash = blockJson["id"];
|
|
final txCount = blockJson["tx_count"] as int;
|
|
|
|
// print(["Scanning block index:", i, "with tx count:", txCount]);
|
|
|
|
int startIndex = 0;
|
|
// go through each tx in block until no more txs are left
|
|
while (startIndex < txCount) {
|
|
// This endpoint gets up to 25 txs from the given block hash and start index
|
|
final twentyFiveTxs = json.decode((await http.get(Uri.parse(
|
|
"https://blockstream.info$networkPath/api/block/$blockHash/txs/$startIndex")))
|
|
.body) as List<dynamic>;
|
|
|
|
// print(["Scanning txs index:", startIndex]);
|
|
|
|
// For each tx, apply silent payment filtering and do shared secret calculation when applied
|
|
for (var i = 0; i < twentyFiveTxs.length; i++) {
|
|
try {
|
|
final tx = twentyFiveTxs[i];
|
|
final txid = tx["txid"] as String;
|
|
|
|
// print(["Scanning tx:", txid]);
|
|
|
|
// TODO: if tx already scanned & stored skip
|
|
// if (scanData.transactionHistoryIds.contains(txid)) {
|
|
// // already scanned tx, continue to next tx
|
|
// pos++;
|
|
// continue;
|
|
// }
|
|
|
|
List<String> pubkeys = [];
|
|
List<bitcoin.Outpoint> outpoints = [];
|
|
|
|
bool skip = false;
|
|
|
|
for (var i = 0; i < (tx["vin"] as List<dynamic>).length; i++) {
|
|
final input = tx["vin"][i];
|
|
if (input["witness"] == null) {
|
|
skip = true;
|
|
// print("Skipping, no witness");
|
|
break;
|
|
}
|
|
|
|
if (input["witness"].length != 2) {
|
|
skip = true;
|
|
// print("Skipping, invalid witness");
|
|
break;
|
|
}
|
|
|
|
final pubkey = input["witness"][1] as String;
|
|
pubkeys.add(pubkey);
|
|
outpoints.add(
|
|
bitcoin.Outpoint(txid: input["txid"] as String, index: input["vout"] as int));
|
|
}
|
|
|
|
if (skip) {
|
|
// skipped tx, continue to next tx
|
|
continue;
|
|
}
|
|
|
|
Map<Uint8List, bitcoin.Outpoint> outpointsByP2TRpubkey = {};
|
|
for (var i = 0; i < (tx["vout"] as List<dynamic>).length; i++) {
|
|
final output = tx["vout"][i];
|
|
if (output["scriptpubkey_type"] != "v1_p2tr") {
|
|
// print("Skipping, not a v1_p2tr output");
|
|
continue;
|
|
}
|
|
|
|
final script = (output["scriptpubkey"] as String).fromHex;
|
|
|
|
// final alreadySpentOutput = (await electrumClient.getHistory(
|
|
// scriptHashFromScript(script, networkType: scanData.networkType)))
|
|
// .length >
|
|
// 1;
|
|
|
|
// if (alreadySpentOutput) {
|
|
// print("Skipping, invalid witness");
|
|
// break;
|
|
// }
|
|
|
|
// final p2tr = bitcoin.P2trAddress(program: script.sublist(2).hex);
|
|
// final address = p2tr.toAddress(scanData.networkType);
|
|
|
|
// print(["Verifying taproot address:", address]);
|
|
|
|
outpointsByP2TRpubkey[script.sublist(2)] =
|
|
bitcoin.Outpoint(txid: txid, index: i, value: output["value"] as int);
|
|
}
|
|
|
|
if (pubkeys.isEmpty || outpoints.isEmpty || outpointsByP2TRpubkey.isEmpty) {
|
|
// skipped tx, continue to next tx
|
|
continue;
|
|
}
|
|
|
|
final outpointHash = bitcoin.SilentPayment.hashOutpoints(outpoints);
|
|
|
|
final curve = bitcoin.getSecp256k1();
|
|
|
|
final result = bitcoin.scanOutputs(
|
|
bitcoin.PrivateKey.fromHex(curve, scanData.scanPrivkeyCompressed.hex),
|
|
bitcoin.PublicKey.fromHex(curve, scanData.spendPubkeyCompressed.hex),
|
|
bitcoin.getSumInputPubKeys(pubkeys),
|
|
outpointHash,
|
|
outpointsByP2TRpubkey.keys.toList());
|
|
|
|
if (result.isEmpty) {
|
|
// no results tx, continue to next tx
|
|
continue;
|
|
}
|
|
|
|
if (result.length > 1) {
|
|
print("MULTIPLE UNSPENT COINS FOUND!");
|
|
} else {
|
|
print("UNSPENT COIN FOUND!");
|
|
}
|
|
print(result);
|
|
|
|
result.forEach((key, value) {
|
|
final outpoint = outpointsByP2TRpubkey[key.fromHex];
|
|
|
|
if (outpoint == null) {
|
|
return;
|
|
}
|
|
|
|
// found utxo for tx
|
|
scanData.sendPort.send(BitcoinUnspent(
|
|
BitcoinAddressRecord(
|
|
key,
|
|
index: 0,
|
|
isHidden: false,
|
|
isUsed: true,
|
|
silentAddressLabel: null,
|
|
silentPaymentTweak: value,
|
|
type: bitcoin.AddressType.p2tr,
|
|
),
|
|
outpoint.txid,
|
|
outpoint.value!,
|
|
outpoint.index,
|
|
silentPaymentTweak: value,
|
|
type: bitcoin.AddressType.p2tr,
|
|
));
|
|
});
|
|
} catch (_) {}
|
|
}
|
|
|
|
// Finished scanning batch of txs in block, add 25 to start index and continue to next block in loop
|
|
startIndex += 25;
|
|
}
|
|
|
|
// Finished scanning block, add 1 to height and continue to next block in loop
|
|
syncHeight += 1;
|
|
currentChainTip = await getNodeHeightOrUpdate(syncHeight);
|
|
scanData.sendPort.send(SyncResponse(syncHeight,
|
|
SyncingSyncStatus.fromHeightValues(currentChainTip, initialSyncHeight, syncHeight)));
|
|
}
|
|
} catch (e, stacktrace) {
|
|
print(stacktrace);
|
|
print(e.toString());
|
|
|
|
break;
|
|
}
|
|
}
|
|
}
|