mirror of
https://github.com/cypherstack/stack_wallet.git
synced 2024-11-17 17:57:40 +00:00
313 lines
11 KiB
Dart
313 lines
11 KiB
Dart
import 'package:isar/isar.dart';
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import 'package:stackwallet/models/isar/models/blockchain_data/address.dart';
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import 'package:stackwallet/models/isar/models/blockchain_data/transaction.dart';
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import 'package:stackwallet/models/isar/models/blockchain_data/v2/input_v2.dart';
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import 'package:stackwallet/models/isar/models/blockchain_data/v2/output_v2.dart';
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import 'package:stackwallet/models/isar/models/blockchain_data/v2/transaction_v2.dart';
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import 'package:stackwallet/utilities/amount/amount.dart';
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import 'package:stackwallet/utilities/extensions/extensions.dart';
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import 'package:stackwallet/utilities/logger.dart';
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import 'package:stackwallet/wallets/crypto_currency/coins/dogecoin.dart';
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import 'package:stackwallet/wallets/crypto_currency/crypto_currency.dart';
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import 'package:stackwallet/wallets/crypto_currency/interfaces/electrumx_currency_interface.dart';
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import 'package:stackwallet/wallets/wallet/intermediate/bip39_hd_wallet.dart';
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import 'package:stackwallet/wallets/wallet/wallet_mixin_interfaces/coin_control_interface.dart';
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import 'package:stackwallet/wallets/wallet/wallet_mixin_interfaces/electrumx_interface.dart';
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class DogecoinWallet<T extends ElectrumXCurrencyInterface>
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extends Bip39HDWallet<T> with ElectrumXInterface<T>, CoinControlInterface {
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DogecoinWallet(CryptoCurrencyNetwork network) : super(Dogecoin(network) as T);
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@override
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int get maximumFeerate => 2500000; // 1000x default value
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@override
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int get isarTransactionVersion => 2;
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@override
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FilterOperation? get changeAddressFilterOperation =>
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FilterGroup.and(standardChangeAddressFilters);
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@override
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FilterOperation? get receivingAddressFilterOperation =>
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FilterGroup.and(standardReceivingAddressFilters);
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// ===========================================================================
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@override
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Future<List<Address>> fetchAddressesForElectrumXScan() async {
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final allAddresses = await mainDB
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.getAddresses(walletId)
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.filter()
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.not()
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.group(
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(q) => q
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.typeEqualTo(AddressType.nonWallet)
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.or()
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.subTypeEqualTo(AddressSubType.nonWallet),
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)
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.findAll();
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return allAddresses;
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}
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// ===========================================================================
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@override
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Future<void> updateTransactions() async {
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// Get all addresses.
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List<Address> allAddressesOld = await fetchAddressesForElectrumXScan();
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// Separate receiving and change addresses.
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Set<String> receivingAddresses = allAddressesOld
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.where((e) => e.subType == AddressSubType.receiving)
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.map((e) => e.value)
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.toSet();
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Set<String> changeAddresses = allAddressesOld
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.where((e) => e.subType == AddressSubType.change)
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.map((e) => e.value)
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.toSet();
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// Remove duplicates.
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final allAddressesSet = {...receivingAddresses, ...changeAddresses};
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// Fetch history from ElectrumX.
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final List<Map<String, dynamic>> allTxHashes =
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await fetchHistory(allAddressesSet);
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// Only parse new txs (not in db yet).
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List<Map<String, dynamic>> allTransactions = [];
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for (final txHash in allTxHashes) {
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// Check for duplicates by searching for tx by tx_hash in db.
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final storedTx = await mainDB.isar.transactionV2s
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.where()
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.txidWalletIdEqualTo(txHash["tx_hash"] as String, walletId)
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.findFirst();
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if (storedTx == null ||
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storedTx.height == null ||
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(storedTx.height != null && storedTx.height! <= 0)) {
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// Tx not in db yet.
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final tx = await electrumXCachedClient.getTransaction(
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txHash: txHash["tx_hash"] as String,
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verbose: true,
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cryptoCurrency: cryptoCurrency,
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);
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// Only tx to list once.
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if (allTransactions
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.indexWhere((e) => e["txid"] == tx["txid"] as String) ==
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-1) {
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tx["height"] = txHash["height"];
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allTransactions.add(tx);
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}
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}
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}
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// Parse all new txs.
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final List<TransactionV2> txns = [];
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for (final txData in allTransactions) {
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bool wasSentFromThisWallet = false;
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// Set to true if any inputs were detected as owned by this wallet.
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bool wasReceivedInThisWallet = false;
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// Set to true if any outputs were detected as owned by this wallet.
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// Parse inputs.
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BigInt amountReceivedInThisWallet = BigInt.zero;
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BigInt changeAmountReceivedInThisWallet = BigInt.zero;
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final List<InputV2> inputs = [];
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for (final jsonInput in txData["vin"] as List) {
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final map = Map<String, dynamic>.from(jsonInput as Map);
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final List<String> addresses = [];
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String valueStringSats = "0";
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OutpointV2? outpoint;
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final coinbase = map["coinbase"] as String?;
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if (coinbase == null) {
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// Not a coinbase (ie a typical input).
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final txid = map["txid"] as String;
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final vout = map["vout"] as int;
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final inputTx = await electrumXCachedClient.getTransaction(
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txHash: txid,
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cryptoCurrency: cryptoCurrency,
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);
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final prevOutJson = Map<String, dynamic>.from(
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(inputTx["vout"] as List).firstWhere((e) => e["n"] == vout)
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as Map);
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final prevOut = OutputV2.fromElectrumXJson(
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prevOutJson,
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decimalPlaces: cryptoCurrency.fractionDigits,
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isFullAmountNotSats: true,
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walletOwns: false, // Doesn't matter here as this is not saved.
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);
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outpoint = OutpointV2.isarCantDoRequiredInDefaultConstructor(
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txid: txid,
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vout: vout,
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);
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valueStringSats = prevOut.valueStringSats;
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addresses.addAll(prevOut.addresses);
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}
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InputV2 input = InputV2.isarCantDoRequiredInDefaultConstructor(
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scriptSigHex: map["scriptSig"]?["hex"] as String?,
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scriptSigAsm: map["scriptSig"]?["asm"] as String?,
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sequence: map["sequence"] as int?,
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outpoint: outpoint,
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valueStringSats: valueStringSats,
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addresses: addresses,
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witness: map["witness"] as String?,
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coinbase: coinbase,
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innerRedeemScriptAsm: map["innerRedeemscriptAsm"] as String?,
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// Need addresses before we can know if the wallet owns this input.
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walletOwns: false,
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);
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// Check if input was from this wallet.
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if (allAddressesSet.intersection(input.addresses.toSet()).isNotEmpty) {
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wasSentFromThisWallet = true;
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input = input.copyWith(walletOwns: true);
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}
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inputs.add(input);
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}
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// Parse outputs.
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final List<OutputV2> outputs = [];
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for (final outputJson in txData["vout"] as List) {
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OutputV2 output = OutputV2.fromElectrumXJson(
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Map<String, dynamic>.from(outputJson as Map),
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decimalPlaces: cryptoCurrency.fractionDigits,
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isFullAmountNotSats: true,
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// Need addresses before we can know if the wallet owns this input.
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walletOwns: false,
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);
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// If output was to my wallet, add value to amount received.
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if (receivingAddresses
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.intersection(output.addresses.toSet())
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.isNotEmpty) {
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wasReceivedInThisWallet = true;
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amountReceivedInThisWallet += output.value;
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output = output.copyWith(walletOwns: true);
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} else if (changeAddresses
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.intersection(output.addresses.toSet())
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.isNotEmpty) {
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wasReceivedInThisWallet = true;
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changeAmountReceivedInThisWallet += output.value;
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output = output.copyWith(walletOwns: true);
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}
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outputs.add(output);
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}
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final totalOut = outputs
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.map((e) => e.value)
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.fold(BigInt.zero, (value, element) => value + element);
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TransactionType type;
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TransactionSubType subType = TransactionSubType.none;
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// At least one input was owned by this wallet.
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if (wasSentFromThisWallet) {
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type = TransactionType.outgoing;
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if (wasReceivedInThisWallet) {
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if (changeAmountReceivedInThisWallet + amountReceivedInThisWallet ==
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totalOut) {
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// Definitely sent all to self.
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type = TransactionType.sentToSelf;
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} else if (amountReceivedInThisWallet == BigInt.zero) {
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// Most likely just a typical send, do nothing here yet.
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}
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// Dogecoin has special outputs like ordinals, but they're unsupported.
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// This is where we would check for them.
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// TODO: [prio=none] Check for special Dogecoin outputs.
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}
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} else if (wasReceivedInThisWallet) {
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// Only found outputs owned by this wallet.
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type = TransactionType.incoming;
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} else {
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Logging.instance.log(
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"Unexpected tx found (ignoring it): $txData",
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level: LogLevel.Error,
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);
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continue;
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}
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final tx = TransactionV2(
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walletId: walletId,
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blockHash: txData["blockhash"] as String?,
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hash: txData["hash"] as String,
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txid: txData["txid"] as String,
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height: txData["height"] as int?,
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version: txData["version"] as int,
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timestamp: txData["blocktime"] as int? ??
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DateTime.timestamp().millisecondsSinceEpoch ~/ 1000,
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inputs: List.unmodifiable(inputs),
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outputs: List.unmodifiable(outputs),
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type: type,
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subType: subType,
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otherData: null,
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);
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txns.add(tx);
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}
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await mainDB.updateOrPutTransactionV2s(txns);
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}
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@override
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Future<({String? blockedReason, bool blocked, String? utxoLabel})>
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checkBlockUTXO(
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Map<String, dynamic> jsonUTXO,
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String? scriptPubKeyHex,
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Map<String, dynamic> jsonTX,
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String? utxoOwnerAddress,
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) async {
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bool blocked = false;
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String? blockedReason;
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// check for bip47 notification
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final outputs = jsonTX["vout"] as List;
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for (final output in outputs) {
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List<String>? scriptChunks =
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(output['scriptPubKey']?['asm'] as String?)?.split(" ");
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if (scriptChunks?.length == 2 && scriptChunks?[0] == "OP_RETURN") {
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final blindedPaymentCode = scriptChunks![1];
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final bytes = blindedPaymentCode.toUint8ListFromHex;
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// https://en.bitcoin.it/wiki/BIP_0047#Sending
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if (bytes.length == 80 && bytes.first == 1) {
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blocked = true;
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blockedReason = "Paynym notification output. Incautious "
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"handling of outputs from notification transactions "
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"may cause unintended loss of privacy.";
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break;
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}
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}
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}
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return (blockedReason: blockedReason, blocked: blocked, utxoLabel: null);
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}
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@override
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Amount roughFeeEstimate(int inputCount, int outputCount, int feeRatePerKB) {
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return Amount(
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rawValue: BigInt.from(((181 * inputCount) + (34 * outputCount) + 10) *
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(feeRatePerKB / 1000).ceil()),
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fractionDigits: cryptoCurrency.fractionDigits,
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);
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}
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@override
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int estimateTxFee({required int vSize, required int feeRatePerKB}) {
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return vSize * (feeRatePerKB / 1000).ceil();
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}
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}
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