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https://github.com/cypherstack/stack_wallet.git
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1449814e35
# Conflicts: # lib/pages/pinpad_views/create_pin_view.dart # lib/widgets/custom_pin_put/custom_pin_put_state.dart
587 lines
18 KiB
Dart
587 lines
18 KiB
Dart
/*
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* This file is part of Stack Wallet.
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*
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* Copyright (c) 2023 Cypher Stack
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* All Rights Reserved.
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* The code is distributed under GPLv3 license, see LICENSE file for details.
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* Generated by Cypher Stack on 2023-05-26
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*
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*/
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import 'dart:async';
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import 'package:ethereum_addresses/ethereum_addresses.dart';
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import 'package:flutter/widgets.dart';
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import 'package:http/http.dart';
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import 'package:isar/isar.dart';
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import 'package:stackwallet/db/isar/main_db.dart';
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import 'package:stackwallet/dto/ethereum/eth_token_tx_dto.dart';
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import 'package:stackwallet/dto/ethereum/eth_token_tx_extra_dto.dart';
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import 'package:stackwallet/models/balance.dart';
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import 'package:stackwallet/models/isar/models/isar_models.dart';
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import 'package:stackwallet/models/node_model.dart';
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import 'package:stackwallet/models/paymint/fee_object_model.dart';
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import 'package:stackwallet/services/coins/ethereum/ethereum_wallet.dart';
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import 'package:stackwallet/services/ethereum/ethereum_api.dart';
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import 'package:stackwallet/services/event_bus/events/global/updated_in_background_event.dart';
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import 'package:stackwallet/services/event_bus/events/global/wallet_sync_status_changed_event.dart';
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import 'package:stackwallet/services/event_bus/global_event_bus.dart';
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import 'package:stackwallet/services/mixins/eth_token_cache.dart';
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import 'package:stackwallet/services/node_service.dart';
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import 'package:stackwallet/services/transaction_notification_tracker.dart';
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import 'package:stackwallet/utilities/amount/amount.dart';
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import 'package:stackwallet/utilities/default_nodes.dart';
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import 'package:stackwallet/utilities/enums/coin_enum.dart';
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import 'package:stackwallet/utilities/enums/fee_rate_type_enum.dart';
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import 'package:stackwallet/utilities/eth_commons.dart';
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import 'package:stackwallet/utilities/extensions/extensions.dart';
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import 'package:stackwallet/utilities/extensions/impl/contract_abi.dart';
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import 'package:stackwallet/utilities/flutter_secure_storage_interface.dart';
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import 'package:stackwallet/utilities/logger.dart';
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import 'package:tuple/tuple.dart';
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import 'package:web3dart/web3dart.dart' as web3dart;
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class EthTokenWallet extends ChangeNotifier with EthTokenCache {
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final EthereumWallet ethWallet;
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final TransactionNotificationTracker tracker;
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final SecureStorageInterface _secureStore;
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// late web3dart.EthereumAddress _contractAddress;
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late web3dart.EthPrivateKey _credentials;
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late web3dart.DeployedContract _deployedContract;
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late web3dart.ContractFunction _sendFunction;
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late web3dart.Web3Client _client;
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static const _gasLimit = 200000;
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EthTokenWallet({
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required EthContract token,
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required this.ethWallet,
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required SecureStorageInterface secureStore,
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required this.tracker,
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}) : _secureStore = secureStore,
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_tokenContract = token {
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// _contractAddress = web3dart.EthereumAddress.fromHex(token.address);
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initCache(ethWallet.walletId, token);
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}
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EthContract get tokenContract => _tokenContract;
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EthContract _tokenContract;
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Balance get balance => _balance ??= getCachedBalance();
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Balance? _balance;
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Coin get coin => Coin.ethereum;
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Future<Map<String, dynamic>> prepareSend({
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required String address,
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required Amount amount,
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Map<String, dynamic>? args,
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}) async {
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final feeRateType = args?["feeRate"];
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int fee = 0;
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final feeObject = await fees;
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switch (feeRateType) {
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case FeeRateType.fast:
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fee = feeObject.fast;
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break;
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case FeeRateType.average:
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fee = feeObject.medium;
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break;
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case FeeRateType.slow:
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fee = feeObject.slow;
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break;
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}
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final feeEstimate = estimateFeeFor(fee);
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final client = await getEthClient();
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final myAddress = await currentReceivingAddress;
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final myWeb3Address = web3dart.EthereumAddress.fromHex(myAddress);
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final nonce = args?["nonce"] as int? ??
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await client.getTransactionCount(myWeb3Address,
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atBlock: const web3dart.BlockNum.pending());
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final tx = web3dart.Transaction.callContract(
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contract: _deployedContract,
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function: _sendFunction,
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parameters: [web3dart.EthereumAddress.fromHex(address), amount.raw],
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maxGas: _gasLimit,
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gasPrice: web3dart.EtherAmount.fromUnitAndValue(
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web3dart.EtherUnit.wei,
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fee,
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),
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nonce: nonce,
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);
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Map<String, dynamic> txData = {
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"fee": feeEstimate,
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"feeInWei": fee,
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"address": address,
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"recipientAmt": amount,
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"ethTx": tx,
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"chainId": (await client.getChainId()).toInt(),
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"nonce": tx.nonce,
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};
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return txData;
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}
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Future<String> confirmSend({required Map<String, dynamic> txData}) async {
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try {
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final txid = await _client.sendTransaction(
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_credentials,
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txData["ethTx"] as web3dart.Transaction,
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chainId: txData["chainId"] as int,
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);
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try {
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txData["txid"] = txid;
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await updateSentCachedTxData(txData);
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} catch (e, s) {
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// do not rethrow as that would get handled as a send failure further up
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// also this is not critical code and transaction should show up on \
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// refresh regardless
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Logging.instance.log("$e\n$s", level: LogLevel.Warning);
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}
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notifyListeners();
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return txid;
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} catch (e) {
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// rethrow to pass error in alert
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rethrow;
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}
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}
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Future<void> updateSentCachedTxData(Map<String, dynamic> txData) async {
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final txid = txData["txid"] as String;
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final addressString = checksumEthereumAddress(txData["address"] as String);
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final response = await EthereumAPI.getEthTransactionByHash(txid);
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final transaction = Transaction(
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walletId: ethWallet.walletId,
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txid: txid,
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timestamp: DateTime.now().millisecondsSinceEpoch ~/ 1000,
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type: TransactionType.outgoing,
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subType: TransactionSubType.ethToken,
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// precision may be lost here hence the following amountString
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amount: (txData["recipientAmt"] as Amount).raw.toInt(),
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amountString: (txData["recipientAmt"] as Amount).toJsonString(),
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fee: (txData["fee"] as Amount).raw.toInt(),
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height: null,
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isCancelled: false,
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isLelantus: false,
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otherData: tokenContract.address,
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slateId: null,
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nonce: (txData["nonce"] as int?) ??
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response.value?.nonce.toBigIntFromHex.toInt(),
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inputs: [],
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outputs: [],
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numberOfMessages: null,
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);
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Address? address = await ethWallet.db.getAddress(
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ethWallet.walletId,
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addressString,
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);
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address ??= Address(
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walletId: ethWallet.walletId,
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value: addressString,
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publicKey: [],
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derivationIndex: -1,
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derivationPath: null,
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type: AddressType.ethereum,
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subType: AddressSubType.nonWallet,
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);
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await ethWallet.db.addNewTransactionData(
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[
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Tuple2(transaction, address),
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],
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ethWallet.walletId,
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);
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}
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Future<String> get currentReceivingAddress async {
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final address = await _currentReceivingAddress;
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return checksumEthereumAddress(
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address?.value ?? _credentials.address.toString());
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}
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Future<Address?> get _currentReceivingAddress => ethWallet.db
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.getAddresses(ethWallet.walletId)
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.filter()
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.typeEqualTo(AddressType.ethereum)
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.subTypeEqualTo(AddressSubType.receiving)
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.sortByDerivationIndexDesc()
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.findFirst();
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Amount estimateFeeFor(int feeRate) {
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return estimateFee(feeRate, _gasLimit, coin.decimals);
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}
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Future<FeeObject> get fees => EthereumAPI.getFees();
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Future<EthContract> _updateTokenABI({
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required EthContract forContract,
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required String usingContractAddress,
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}) async {
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final abiResponse = await EthereumAPI.getTokenAbi(
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name: forContract.name,
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contractAddress: usingContractAddress,
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);
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// Fetch token ABI so we can call token functions
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if (abiResponse.value != null) {
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final updatedToken = forContract.copyWith(abi: abiResponse.value!);
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// Store updated contract
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final id = await MainDB.instance.putEthContract(updatedToken);
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return updatedToken..id = id;
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} else {
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throw abiResponse.exception!;
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}
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}
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Future<void> initialize() async {
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final contractAddress =
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web3dart.EthereumAddress.fromHex(tokenContract.address);
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if (tokenContract.abi == null) {
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_tokenContract = await _updateTokenABI(
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forContract: tokenContract,
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usingContractAddress: contractAddress.hex,
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);
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}
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String? mnemonicString = await ethWallet.mnemonicString;
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//Get private key for given mnemonic
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String privateKey = getPrivateKey(
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mnemonicString!,
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(await ethWallet.mnemonicPassphrase) ?? "",
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);
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_credentials = web3dart.EthPrivateKey.fromHex(privateKey);
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try {
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_deployedContract = web3dart.DeployedContract(
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ContractAbiExtensions.fromJsonList(
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jsonList: tokenContract.abi!,
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name: tokenContract.name,
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),
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contractAddress,
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);
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} catch (_) {
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rethrow;
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}
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try {
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_sendFunction = _deployedContract.function('transfer');
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} catch (_) {
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//====================================================================
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// final list = List<Map<String, dynamic>>.from(
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// jsonDecode(tokenContract.abi!) as List);
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// final functionNames = list.map((e) => e["name"] as String);
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//
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// if (!functionNames.contains("balanceOf")) {
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// list.add(
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// {
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// "encoding": "0x70a08231",
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// "inputs": [
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// {"name": "account", "type": "address"}
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// ],
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// "name": "balanceOf",
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// "outputs": [
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// {"name": "val_0", "type": "uint256"}
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// ],
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// "signature": "balanceOf(address)",
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// "type": "function"
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// },
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// );
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// }
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//
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// if (!functionNames.contains("transfer")) {
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// list.add(
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// {
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// "encoding": "0xa9059cbb",
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// "inputs": [
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// {"name": "dst", "type": "address"},
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// {"name": "rawAmount", "type": "uint256"}
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// ],
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// "name": "transfer",
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// "outputs": [
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// {"name": "val_0", "type": "bool"}
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// ],
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// "signature": "transfer(address,uint256)",
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// "type": "function"
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// },
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// );
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// }
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//--------------------------------------------------------------------
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//====================================================================
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// function not found so likely a proxy so we need to fetch the impl
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//====================================================================
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// final updatedToken = tokenContract.copyWith(abi: jsonEncode(list));
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// // Store updated contract
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// final id = await MainDB.instance.putEthContract(updatedToken);
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// _tokenContract = updatedToken..id = id;
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//--------------------------------------------------------------------
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final contractAddressResponse =
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await EthereumAPI.getProxyTokenImplementationAddress(
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contractAddress.hex);
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if (contractAddressResponse.value != null) {
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_tokenContract = await _updateTokenABI(
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forContract: tokenContract,
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usingContractAddress: contractAddressResponse.value!,
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);
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} else {
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throw contractAddressResponse.exception!;
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}
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//====================================================================
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}
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try {
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_deployedContract = web3dart.DeployedContract(
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ContractAbiExtensions.fromJsonList(
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jsonList: tokenContract.abi!,
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name: tokenContract.name,
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),
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contractAddress,
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);
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} catch (_) {
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rethrow;
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}
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_sendFunction = _deployedContract.function('transfer');
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_client = await getEthClient();
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unawaited(refresh());
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}
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bool get isRefreshing => _refreshLock;
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bool _refreshLock = false;
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Future<void> refresh() async {
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if (!_refreshLock) {
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_refreshLock = true;
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try {
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GlobalEventBus.instance.fire(
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WalletSyncStatusChangedEvent(
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WalletSyncStatus.syncing,
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ethWallet.walletId + tokenContract.address,
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coin,
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),
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);
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await refreshCachedBalance();
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await _refreshTransactions();
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} catch (e, s) {
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Logging.instance.log(
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"Caught exception in ${tokenContract.name} ${ethWallet.walletName} ${ethWallet.walletId} refresh(): $e\n$s",
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level: LogLevel.Warning,
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);
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} finally {
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_refreshLock = false;
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GlobalEventBus.instance.fire(
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WalletSyncStatusChangedEvent(
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WalletSyncStatus.synced,
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ethWallet.walletId + tokenContract.address,
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coin,
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),
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);
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notifyListeners();
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}
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}
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}
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Future<void> refreshCachedBalance() async {
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final response = await EthereumAPI.getWalletTokenBalance(
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address: _credentials.address.hex,
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contractAddress: tokenContract.address,
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);
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if (response.value != null) {
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await updateCachedBalance(
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Balance(
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total: response.value!,
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spendable: response.value!,
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blockedTotal: Amount(
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rawValue: BigInt.zero,
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fractionDigits: tokenContract.decimals,
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),
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pendingSpendable: Amount(
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rawValue: BigInt.zero,
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fractionDigits: tokenContract.decimals,
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),
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),
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);
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notifyListeners();
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} else {
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Logging.instance.log(
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"CachedEthTokenBalance.fetchAndUpdateCachedBalance failed: ${response.exception}",
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level: LogLevel.Warning,
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);
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}
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}
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Future<List<Transaction>> get transactions => ethWallet.db
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.getTransactions(ethWallet.walletId)
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.filter()
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.otherDataEqualTo(tokenContract.address)
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.sortByTimestampDesc()
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.findAll();
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String _addressFromTopic(String topic) =>
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checksumEthereumAddress("0x${topic.substring(topic.length - 40)}");
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Future<void> _refreshTransactions() async {
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String addressString =
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checksumEthereumAddress(await currentReceivingAddress);
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final response = await EthereumAPI.getTokenTransactions(
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address: addressString,
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tokenContractAddress: tokenContract.address,
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);
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if (response.value == null) {
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throw response.exception ??
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Exception("Failed to fetch token transaction data");
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}
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// no need to continue if no transactions found
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if (response.value!.isEmpty) {
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return;
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}
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final response2 = await EthereumAPI.getEthTokenTransactionsByTxids(
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response.value!.map((e) => e.transactionHash).toList(),
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);
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if (response2.value == null) {
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throw response2.exception ??
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Exception("Failed to fetch token transactions");
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}
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final List<Tuple2<EthTokenTxDto, EthTokenTxExtraDTO>> data = [];
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for (final tokenDto in response.value!) {
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data.add(
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Tuple2(
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tokenDto,
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response2.value!.firstWhere(
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(e) => e.hash == tokenDto.transactionHash,
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),
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),
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);
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}
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final List<Tuple2<Transaction, Address?>> txnsData = [];
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for (final tuple in data) {
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// ignore all non Transfer events (for now)
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if (tuple.item1.topics[0] == kTransferEventSignature) {
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final Amount amount;
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String fromAddress, toAddress;
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amount = Amount(
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rawValue: tuple.item1.data.toBigIntFromHex,
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fractionDigits: tokenContract.decimals,
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);
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fromAddress = _addressFromTopic(
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tuple.item1.topics[1],
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);
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toAddress = _addressFromTopic(
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tuple.item1.topics[2],
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);
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bool isIncoming;
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bool isSentToSelf = false;
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if (fromAddress == addressString) {
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isIncoming = false;
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if (toAddress == addressString) {
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isSentToSelf = true;
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}
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} else if (toAddress == addressString) {
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isIncoming = true;
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} else {
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throw Exception("Unknown token transaction found for "
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"${ethWallet.walletName} ${ethWallet.walletId}: "
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"${tuple.item1.toString()}");
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}
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final txn = Transaction(
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walletId: ethWallet.walletId,
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txid: tuple.item1.transactionHash,
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timestamp: tuple.item2.timestamp,
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type:
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isIncoming ? TransactionType.incoming : TransactionType.outgoing,
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subType: TransactionSubType.ethToken,
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amount: amount.raw.toInt(),
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amountString: amount.toJsonString(),
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fee: (tuple.item2.gasUsed.raw * tuple.item2.gasPrice.raw).toInt(),
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height: tuple.item1.blockNumber,
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isCancelled: false,
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isLelantus: false,
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slateId: null,
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nonce: tuple.item2.nonce,
|
|
otherData: tuple.item1.address,
|
|
inputs: [],
|
|
outputs: [],
|
|
numberOfMessages: null,
|
|
);
|
|
|
|
Address? transactionAddress = await ethWallet.db
|
|
.getAddresses(ethWallet.walletId)
|
|
.filter()
|
|
.valueEqualTo(toAddress)
|
|
.findFirst();
|
|
|
|
transactionAddress ??= Address(
|
|
walletId: ethWallet.walletId,
|
|
value: toAddress,
|
|
publicKey: [],
|
|
derivationIndex: isSentToSelf ? 0 : -1,
|
|
derivationPath: isSentToSelf
|
|
? (DerivationPath()..value = "$hdPathEthereum/0")
|
|
: null,
|
|
type: AddressType.ethereum,
|
|
subType: isSentToSelf
|
|
? AddressSubType.receiving
|
|
: AddressSubType.nonWallet,
|
|
);
|
|
|
|
txnsData.add(Tuple2(txn, transactionAddress));
|
|
}
|
|
}
|
|
await ethWallet.db.addNewTransactionData(txnsData, ethWallet.walletId);
|
|
|
|
// quick hack to notify manager to call notifyListeners if
|
|
// transactions changed
|
|
if (txnsData.isNotEmpty) {
|
|
GlobalEventBus.instance.fire(
|
|
UpdatedInBackgroundEvent(
|
|
"${tokenContract.name} transactions updated/added for: ${ethWallet.walletId} ${ethWallet.walletName}",
|
|
ethWallet.walletId,
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
bool validateAddress(String address) {
|
|
return isValidEthereumAddress(address);
|
|
}
|
|
|
|
NodeModel getCurrentNode() {
|
|
return NodeService(secureStorageInterface: _secureStore)
|
|
.getPrimaryNodeFor(coin: coin) ??
|
|
DefaultNodes.getNodeFor(coin);
|
|
}
|
|
|
|
Future<web3dart.Web3Client> getEthClient() async {
|
|
final node = getCurrentNode();
|
|
return web3dart.Web3Client(node.host, Client());
|
|
}
|
|
}
|