mirror of
https://github.com/kremalicious/metamask-extension.git
synced 2024-10-22 19:26:13 +02:00
990 lines
33 KiB
JavaScript
990 lines
33 KiB
JavaScript
import EventEmitter from 'safe-event-emitter';
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import { ObservableStore } from '@metamask/obs-store';
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import ethUtil from 'ethereumjs-util';
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import Transaction from 'ethereumjs-tx';
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import EthQuery from 'ethjs-query';
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import { ethErrors } from 'eth-rpc-errors';
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import abi from 'human-standard-token-abi';
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import { ethers } from 'ethers';
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import NonceTracker from 'nonce-tracker';
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import log from 'loglevel';
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import BigNumber from 'bignumber.js';
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import cleanErrorStack from '../../lib/cleanErrorStack';
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import {
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hexToBn,
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bnToHex,
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BnMultiplyByFraction,
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addHexPrefix,
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} from '../../lib/util';
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import { TRANSACTION_NO_CONTRACT_ERROR_KEY } from '../../../../ui/app/helpers/constants/error-keys';
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import { getSwapsTokensReceivedFromTxMeta } from '../../../../ui/app/pages/swaps/swaps.util';
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import {
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TRANSACTION_STATUSES,
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TRANSACTION_TYPES,
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} from '../../../../shared/constants/transaction';
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import { METAMASK_CONTROLLER_EVENTS } from '../../metamask-controller';
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import TransactionStateManager from './tx-state-manager';
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import TxGasUtil from './tx-gas-utils';
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import PendingTransactionTracker from './pending-tx-tracker';
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import * as txUtils from './lib/util';
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const hstInterface = new ethers.utils.Interface(abi);
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const SIMPLE_GAS_COST = '0x5208'; // Hex for 21000, cost of a simple send.
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const MAX_MEMSTORE_TX_LIST_SIZE = 100; // Number of transactions (by unique nonces) to keep in memory
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/**
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Transaction Controller is an aggregate of sub-controllers and trackers
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composing them in a way to be exposed to the metamask controller
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<br>- txStateManager
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responsible for the state of a transaction and
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storing the transaction
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<br>- pendingTxTracker
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watching blocks for transactions to be include
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and emitting confirmed events
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<br>- txGasUtil
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gas calculations and safety buffering
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<br>- nonceTracker
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calculating nonces
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@class
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@param {Object} opts
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@param {Object} opts.initState - initial transaction list default is an empty array
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@param {Object} opts.networkStore - an observable store for network number
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@param {Object} opts.blockTracker - An instance of eth-blocktracker
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@param {Object} opts.provider - A network provider.
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@param {Function} opts.signTransaction - function the signs an ethereumjs-tx
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@param {Object} opts.getPermittedAccounts - get accounts that an origin has permissions for
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@param {Function} opts.signTransaction - ethTx signer that returns a rawTx
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@param {number} [opts.txHistoryLimit] - number *optional* for limiting how many transactions are in state
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@param {Object} opts.preferencesStore
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*/
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export default class TransactionController extends EventEmitter {
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constructor(opts) {
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super();
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this.networkStore = opts.networkStore || new ObservableStore({});
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this._getCurrentChainId = opts.getCurrentChainId;
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this.preferencesStore = opts.preferencesStore || new ObservableStore({});
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this.provider = opts.provider;
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this.getPermittedAccounts = opts.getPermittedAccounts;
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this.blockTracker = opts.blockTracker;
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this.signEthTx = opts.signTransaction;
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this.inProcessOfSigning = new Set();
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this._trackMetaMetricsEvent = opts.trackMetaMetricsEvent;
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this._getParticipateInMetrics = opts.getParticipateInMetrics;
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this.memStore = new ObservableStore({});
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this.query = new EthQuery(this.provider);
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this.txGasUtil = new TxGasUtil(this.provider);
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this._mapMethods();
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this.txStateManager = new TransactionStateManager({
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initState: opts.initState,
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txHistoryLimit: opts.txHistoryLimit,
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getNetwork: this.getNetwork.bind(this),
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getCurrentChainId: opts.getCurrentChainId,
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});
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this._onBootCleanUp();
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this.store = this.txStateManager.store;
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this.nonceTracker = new NonceTracker({
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provider: this.provider,
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blockTracker: this.blockTracker,
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getPendingTransactions: this.txStateManager.getPendingTransactions.bind(
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this.txStateManager,
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),
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getConfirmedTransactions: this.txStateManager.getConfirmedTransactions.bind(
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this.txStateManager,
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),
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});
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this.pendingTxTracker = new PendingTransactionTracker({
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provider: this.provider,
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nonceTracker: this.nonceTracker,
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publishTransaction: (rawTx) => this.query.sendRawTransaction(rawTx),
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getPendingTransactions: () => {
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const pending = this.txStateManager.getPendingTransactions();
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const approved = this.txStateManager.getApprovedTransactions();
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return [...pending, ...approved];
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},
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approveTransaction: this.approveTransaction.bind(this),
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getCompletedTransactions: this.txStateManager.getConfirmedTransactions.bind(
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this.txStateManager,
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),
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});
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this.txStateManager.store.subscribe(() =>
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this.emit(METAMASK_CONTROLLER_EVENTS.UPDATE_BADGE),
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);
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this._setupListeners();
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// memstore is computed from a few different stores
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this._updateMemstore();
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this.txStateManager.store.subscribe(() => this._updateMemstore());
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this.networkStore.subscribe(() => {
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this._onBootCleanUp();
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this._updateMemstore();
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});
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// request state update to finalize initialization
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this._updatePendingTxsAfterFirstBlock();
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}
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/**
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* Gets the current chainId in the network store as a number, returning 0 if
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* the chainId parses to NaN.
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*
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* @returns {number} The numerical chainId.
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*/
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getChainId() {
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const networkState = this.networkStore.getState();
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const chainId = this._getCurrentChainId();
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const integerChainId = parseInt(chainId, 16);
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if (networkState === 'loading' || Number.isNaN(integerChainId)) {
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return 0;
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}
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return integerChainId;
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}
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/**
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Adds a tx to the txlist
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@emits ${txMeta.id}:unapproved
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*/
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addTx(txMeta) {
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this.txStateManager.addTx(txMeta);
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this.emit(`${txMeta.id}:unapproved`, txMeta);
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}
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/**
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Wipes the transactions for a given account
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@param {string} address - hex string of the from address for txs being removed
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*/
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wipeTransactions(address) {
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this.txStateManager.wipeTransactions(address);
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}
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/**
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* Add a new unapproved transaction to the pipeline
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*
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* @returns {Promise<string>} the hash of the transaction after being submitted to the network
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* @param {Object} txParams - txParams for the transaction
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* @param {Object} opts - with the key origin to put the origin on the txMeta
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*/
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async newUnapprovedTransaction(txParams, opts = {}) {
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log.debug(
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`MetaMaskController newUnapprovedTransaction ${JSON.stringify(txParams)}`,
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);
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const initialTxMeta = await this.addUnapprovedTransaction(
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txParams,
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opts.origin,
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);
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// listen for tx completion (success, fail)
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return new Promise((resolve, reject) => {
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this.txStateManager.once(
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`${initialTxMeta.id}:finished`,
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(finishedTxMeta) => {
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switch (finishedTxMeta.status) {
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case TRANSACTION_STATUSES.SUBMITTED:
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return resolve(finishedTxMeta.hash);
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case TRANSACTION_STATUSES.REJECTED:
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return reject(
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cleanErrorStack(
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ethErrors.provider.userRejectedRequest(
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'MetaMask Tx Signature: User denied transaction signature.',
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),
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),
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);
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case TRANSACTION_STATUSES.FAILED:
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return reject(
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cleanErrorStack(
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ethErrors.rpc.internal(finishedTxMeta.err.message),
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),
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);
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default:
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return reject(
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cleanErrorStack(
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ethErrors.rpc.internal(
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`MetaMask Tx Signature: Unknown problem: ${JSON.stringify(
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finishedTxMeta.txParams,
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)}`,
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),
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),
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);
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}
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},
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);
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});
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}
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/**
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* Validates and generates a txMeta with defaults and puts it in txStateManager
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* store.
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*
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* @returns {txMeta}
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*/
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async addUnapprovedTransaction(txParams, origin) {
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// validate
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const normalizedTxParams = txUtils.normalizeTxParams(txParams);
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txUtils.validateTxParams(normalizedTxParams);
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/**
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`generateTxMeta` adds the default txMeta properties to the passed object.
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These include the tx's `id`. As we use the id for determining order of
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txes in the tx-state-manager, it is necessary to call the asynchronous
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method `this._determineTransactionType` after `generateTxMeta`.
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*/
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let txMeta = this.txStateManager.generateTxMeta({
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txParams: normalizedTxParams,
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});
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if (origin === 'metamask') {
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// Assert the from address is the selected address
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if (normalizedTxParams.from !== this.getSelectedAddress()) {
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throw ethErrors.rpc.internal({
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message: `Internally initiated transaction is using invalid account.`,
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data: {
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origin,
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fromAddress: normalizedTxParams.from,
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selectedAddress: this.getSelectedAddress(),
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},
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});
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}
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} else {
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// Assert that the origin has permissions to initiate transactions from
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// the specified address
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const permittedAddresses = await this.getPermittedAccounts(origin);
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if (!permittedAddresses.includes(normalizedTxParams.from)) {
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throw ethErrors.provider.unauthorized({ data: { origin } });
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}
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}
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txMeta.origin = origin;
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const { type, getCodeResponse } = await this._determineTransactionType(
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txParams,
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);
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txMeta.type = type;
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// ensure value
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txMeta.txParams.value = txMeta.txParams.value
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? addHexPrefix(txMeta.txParams.value)
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: '0x0';
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this.addTx(txMeta);
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this.emit('newUnapprovedTx', txMeta);
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try {
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txMeta = await this.addTxGasDefaults(txMeta, getCodeResponse);
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} catch (error) {
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log.warn(error);
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txMeta = this.txStateManager.getTx(txMeta.id);
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txMeta.loadingDefaults = false;
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this.txStateManager.updateTx(txMeta, 'Failed to calculate gas defaults.');
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throw error;
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}
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txMeta.loadingDefaults = false;
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// save txMeta
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this.txStateManager.updateTx(txMeta, 'Added new unapproved transaction.');
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return txMeta;
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}
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/**
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* Adds the tx gas defaults: gas && gasPrice
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* @param {Object} txMeta - the txMeta object
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* @returns {Promise<object>} resolves with txMeta
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*/
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async addTxGasDefaults(txMeta, getCodeResponse) {
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const defaultGasPrice = await this._getDefaultGasPrice(txMeta);
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const {
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gasLimit: defaultGasLimit,
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simulationFails,
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} = await this._getDefaultGasLimit(txMeta, getCodeResponse);
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// eslint-disable-next-line no-param-reassign
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txMeta = this.txStateManager.getTx(txMeta.id);
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if (simulationFails) {
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txMeta.simulationFails = simulationFails;
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}
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if (defaultGasPrice && !txMeta.txParams.gasPrice) {
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txMeta.txParams.gasPrice = defaultGasPrice;
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}
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if (defaultGasLimit && !txMeta.txParams.gas) {
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txMeta.txParams.gas = defaultGasLimit;
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}
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return txMeta;
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}
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/**
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* Gets default gas price, or returns `undefined` if gas price is already set
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* @param {Object} txMeta - The txMeta object
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* @returns {Promise<string|undefined>} The default gas price
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*/
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async _getDefaultGasPrice(txMeta) {
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if (txMeta.txParams.gasPrice) {
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return undefined;
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}
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const gasPrice = await this.query.gasPrice();
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return addHexPrefix(gasPrice.toString(16));
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}
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/**
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* Gets default gas limit, or debug information about why gas estimate failed.
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* @param {Object} txMeta - The txMeta object
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* @param {string} getCodeResponse - The transaction category code response, used for debugging purposes
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* @returns {Promise<Object>} Object containing the default gas limit, or the simulation failure object
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*/
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async _getDefaultGasLimit(txMeta, getCodeResponse) {
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if (txMeta.txParams.gas) {
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return {};
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} else if (
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txMeta.txParams.to &&
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txMeta.type === TRANSACTION_TYPES.SENT_ETHER
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) {
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// if there's data in the params, but there's no contract code, it's not a valid transaction
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if (txMeta.txParams.data) {
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const err = new Error(
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'TxGasUtil - Trying to call a function on a non-contract address',
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);
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// set error key so ui can display localized error message
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err.errorKey = TRANSACTION_NO_CONTRACT_ERROR_KEY;
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// set the response on the error so that we can see in logs what the actual response was
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err.getCodeResponse = getCodeResponse;
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throw err;
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}
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// This is a standard ether simple send, gas requirement is exactly 21k
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return { gasLimit: SIMPLE_GAS_COST };
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}
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const {
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blockGasLimit,
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estimatedGasHex,
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simulationFails,
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} = await this.txGasUtil.analyzeGasUsage(txMeta);
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// add additional gas buffer to our estimation for safety
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const gasLimit = this.txGasUtil.addGasBuffer(
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addHexPrefix(estimatedGasHex),
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blockGasLimit,
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);
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return { gasLimit, simulationFails };
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}
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/**
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* Creates a new approved transaction to attempt to cancel a previously submitted transaction. The
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* new transaction contains the same nonce as the previous, is a basic ETH transfer of 0x value to
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* the sender's address, and has a higher gasPrice than that of the previous transaction.
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* @param {number} originalTxId - the id of the txMeta that you want to attempt to cancel
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* @param {string} [customGasPrice] - the hex value to use for the cancel transaction
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* @returns {txMeta}
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*/
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async createCancelTransaction(originalTxId, customGasPrice, customGasLimit) {
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const originalTxMeta = this.txStateManager.getTx(originalTxId);
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const { txParams } = originalTxMeta;
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const { gasPrice: lastGasPrice, from, nonce } = txParams;
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const newGasPrice =
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customGasPrice ||
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bnToHex(BnMultiplyByFraction(hexToBn(lastGasPrice), 11, 10));
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const newTxMeta = this.txStateManager.generateTxMeta({
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txParams: {
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from,
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to: from,
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nonce,
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gas: customGasLimit || '0x5208',
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value: '0x0',
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gasPrice: newGasPrice,
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},
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lastGasPrice,
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loadingDefaults: false,
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status: TRANSACTION_STATUSES.APPROVED,
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type: TRANSACTION_TYPES.CANCEL,
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});
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this.addTx(newTxMeta);
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await this.approveTransaction(newTxMeta.id);
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return newTxMeta;
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}
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/**
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* Creates a new approved transaction to attempt to speed up a previously submitted transaction. The
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* new transaction contains the same nonce as the previous. By default, the new transaction will use
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* the same gas limit and a 10% higher gas price, though it is possible to set a custom value for
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* each instead.
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* @param {number} originalTxId - the id of the txMeta that you want to speed up
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* @param {string} [customGasPrice] - The new custom gas price, in hex
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* @param {string} [customGasLimit] - The new custom gas limt, in hex
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* @returns {txMeta}
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*/
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async createSpeedUpTransaction(originalTxId, customGasPrice, customGasLimit) {
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const originalTxMeta = this.txStateManager.getTx(originalTxId);
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const { txParams } = originalTxMeta;
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const { gasPrice: lastGasPrice } = txParams;
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const newGasPrice =
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customGasPrice ||
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bnToHex(BnMultiplyByFraction(hexToBn(lastGasPrice), 11, 10));
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const newTxMeta = this.txStateManager.generateTxMeta({
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txParams: {
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...txParams,
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gasPrice: newGasPrice,
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},
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lastGasPrice,
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loadingDefaults: false,
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status: TRANSACTION_STATUSES.APPROVED,
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type: TRANSACTION_TYPES.RETRY,
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});
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if (customGasLimit) {
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newTxMeta.txParams.gas = customGasLimit;
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}
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this.addTx(newTxMeta);
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await this.approveTransaction(newTxMeta.id);
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return newTxMeta;
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}
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/**
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updates the txMeta in the txStateManager
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@param {Object} txMeta - the updated txMeta
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*/
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async updateTransaction(txMeta) {
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this.txStateManager.updateTx(txMeta, 'confTx: user updated transaction');
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}
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/**
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updates and approves the transaction
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@param {Object} txMeta
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*/
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async updateAndApproveTransaction(txMeta) {
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this.txStateManager.updateTx(txMeta, 'confTx: user approved transaction');
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await this.approveTransaction(txMeta.id);
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}
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/**
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sets the tx status to approved
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auto fills the nonce
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signs the transaction
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publishes the transaction
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if any of these steps fails the tx status will be set to failed
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@param {number} txId - the tx's Id
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*/
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async approveTransaction(txId) {
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// TODO: Move this safety out of this function.
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// Since this transaction is async,
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// we need to keep track of what is currently being signed,
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// So that we do not increment nonce + resubmit something
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// that is already being incremented & signed.
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if (this.inProcessOfSigning.has(txId)) {
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return;
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}
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this.inProcessOfSigning.add(txId);
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let nonceLock;
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try {
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// approve
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this.txStateManager.setTxStatusApproved(txId);
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// get next nonce
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const txMeta = this.txStateManager.getTx(txId);
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const fromAddress = txMeta.txParams.from;
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// wait for a nonce
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let { customNonceValue } = txMeta;
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customNonceValue = Number(customNonceValue);
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nonceLock = await this.nonceTracker.getNonceLock(fromAddress);
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// add nonce to txParams
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// if txMeta has lastGasPrice then it is a retry at same nonce with higher
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// gas price transaction and their for the nonce should not be calculated
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const nonce = txMeta.lastGasPrice
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? txMeta.txParams.nonce
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: nonceLock.nextNonce;
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const customOrNonce =
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customNonceValue === 0 ? customNonceValue : customNonceValue || nonce;
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|
|
txMeta.txParams.nonce = addHexPrefix(customOrNonce.toString(16));
|
|
// add nonce debugging information to txMeta
|
|
txMeta.nonceDetails = nonceLock.nonceDetails;
|
|
if (customNonceValue) {
|
|
txMeta.nonceDetails.customNonceValue = customNonceValue;
|
|
}
|
|
this.txStateManager.updateTx(txMeta, 'transactions#approveTransaction');
|
|
// sign transaction
|
|
const rawTx = await this.signTransaction(txId);
|
|
await this.publishTransaction(txId, rawTx);
|
|
// must set transaction to submitted/failed before releasing lock
|
|
nonceLock.releaseLock();
|
|
} catch (err) {
|
|
// this is try-catch wrapped so that we can guarantee that the nonceLock is released
|
|
try {
|
|
this.txStateManager.setTxStatusFailed(txId, err);
|
|
} catch (err2) {
|
|
log.error(err2);
|
|
}
|
|
// must set transaction to submitted/failed before releasing lock
|
|
if (nonceLock) {
|
|
nonceLock.releaseLock();
|
|
}
|
|
// continue with error chain
|
|
throw err;
|
|
} finally {
|
|
this.inProcessOfSigning.delete(txId);
|
|
}
|
|
}
|
|
|
|
/**
|
|
adds the chain id and signs the transaction and set the status to signed
|
|
@param {number} txId - the tx's Id
|
|
@returns {string} rawTx
|
|
*/
|
|
async signTransaction(txId) {
|
|
const txMeta = this.txStateManager.getTx(txId);
|
|
// add network/chain id
|
|
const chainId = this.getChainId();
|
|
const txParams = { ...txMeta.txParams, chainId };
|
|
// sign tx
|
|
const fromAddress = txParams.from;
|
|
const ethTx = new Transaction(txParams);
|
|
await this.signEthTx(ethTx, fromAddress);
|
|
|
|
// add r,s,v values for provider request purposes see createMetamaskMiddleware
|
|
// and JSON rpc standard for further explanation
|
|
txMeta.r = ethUtil.bufferToHex(ethTx.r);
|
|
txMeta.s = ethUtil.bufferToHex(ethTx.s);
|
|
txMeta.v = ethUtil.bufferToHex(ethTx.v);
|
|
|
|
this.txStateManager.updateTx(
|
|
txMeta,
|
|
'transactions#signTransaction: add r, s, v values',
|
|
);
|
|
|
|
// set state to signed
|
|
this.txStateManager.setTxStatusSigned(txMeta.id);
|
|
const rawTx = ethUtil.bufferToHex(ethTx.serialize());
|
|
return rawTx;
|
|
}
|
|
|
|
/**
|
|
publishes the raw tx and sets the txMeta to submitted
|
|
@param {number} txId - the tx's Id
|
|
@param {string} rawTx - the hex string of the serialized signed transaction
|
|
@returns {Promise<void>}
|
|
*/
|
|
async publishTransaction(txId, rawTx) {
|
|
const txMeta = this.txStateManager.getTx(txId);
|
|
txMeta.rawTx = rawTx;
|
|
if (txMeta.type === TRANSACTION_TYPES.SWAP) {
|
|
const preTxBalance = await this.query.getBalance(txMeta.txParams.from);
|
|
txMeta.preTxBalance = preTxBalance.toString(16);
|
|
}
|
|
this.txStateManager.updateTx(txMeta, 'transactions#publishTransaction');
|
|
let txHash;
|
|
try {
|
|
txHash = await this.query.sendRawTransaction(rawTx);
|
|
} catch (error) {
|
|
if (error.message.toLowerCase().includes('known transaction')) {
|
|
txHash = ethUtil.sha3(addHexPrefix(rawTx)).toString('hex');
|
|
txHash = addHexPrefix(txHash);
|
|
} else {
|
|
throw error;
|
|
}
|
|
}
|
|
this.setTxHash(txId, txHash);
|
|
|
|
this.txStateManager.setTxStatusSubmitted(txId);
|
|
}
|
|
|
|
/**
|
|
* Sets the status of the transaction to confirmed and sets the status of nonce duplicates as
|
|
* dropped if the txParams have data it will fetch the txReceipt
|
|
* @param {number} txId - The tx's ID
|
|
* @returns {Promise<void>}
|
|
*/
|
|
async confirmTransaction(txId, txReceipt) {
|
|
// get the txReceipt before marking the transaction confirmed
|
|
// to ensure the receipt is gotten before the ui revives the tx
|
|
const txMeta = this.txStateManager.getTx(txId);
|
|
|
|
if (!txMeta) {
|
|
return;
|
|
}
|
|
|
|
try {
|
|
// It seems that sometimes the numerical values being returned from
|
|
// this.query.getTransactionReceipt are BN instances and not strings.
|
|
const gasUsed =
|
|
typeof txReceipt.gasUsed === 'string'
|
|
? txReceipt.gasUsed
|
|
: txReceipt.gasUsed.toString(16);
|
|
|
|
txMeta.txReceipt = {
|
|
...txReceipt,
|
|
gasUsed,
|
|
};
|
|
this.txStateManager.setTxStatusConfirmed(txId);
|
|
this._markNonceDuplicatesDropped(txId);
|
|
|
|
this.txStateManager.updateTx(
|
|
txMeta,
|
|
'transactions#confirmTransaction - add txReceipt',
|
|
);
|
|
|
|
if (txMeta.type === TRANSACTION_TYPES.SWAP) {
|
|
const postTxBalance = await this.query.getBalance(txMeta.txParams.from);
|
|
const latestTxMeta = this.txStateManager.getTx(txId);
|
|
|
|
const approvalTxMeta = latestTxMeta.approvalTxId
|
|
? this.txStateManager.getTx(latestTxMeta.approvalTxId)
|
|
: null;
|
|
|
|
latestTxMeta.postTxBalance = postTxBalance.toString(16);
|
|
|
|
this.txStateManager.updateTx(
|
|
latestTxMeta,
|
|
'transactions#confirmTransaction - add postTxBalance',
|
|
);
|
|
|
|
this._trackSwapsMetrics(latestTxMeta, approvalTxMeta);
|
|
}
|
|
} catch (err) {
|
|
log.error(err);
|
|
}
|
|
}
|
|
|
|
/**
|
|
Convenience method for the ui thats sets the transaction to rejected
|
|
@param {number} txId - the tx's Id
|
|
@returns {Promise<void>}
|
|
*/
|
|
async cancelTransaction(txId) {
|
|
this.txStateManager.setTxStatusRejected(txId);
|
|
}
|
|
|
|
/**
|
|
Sets the txHas on the txMeta
|
|
@param {number} txId - the tx's Id
|
|
@param {string} txHash - the hash for the txMeta
|
|
*/
|
|
setTxHash(txId, txHash) {
|
|
// Add the tx hash to the persisted meta-tx object
|
|
const txMeta = this.txStateManager.getTx(txId);
|
|
txMeta.hash = txHash;
|
|
this.txStateManager.updateTx(txMeta, 'transactions#setTxHash');
|
|
}
|
|
|
|
//
|
|
// PRIVATE METHODS
|
|
//
|
|
/** maps methods for convenience*/
|
|
_mapMethods() {
|
|
/** @returns {Object} the state in transaction controller */
|
|
this.getState = () => this.memStore.getState();
|
|
|
|
/** @returns {string|number} the network number stored in networkStore */
|
|
this.getNetwork = () => this.networkStore.getState();
|
|
|
|
/** @returns {string} the user selected address */
|
|
this.getSelectedAddress = () =>
|
|
this.preferencesStore.getState().selectedAddress;
|
|
|
|
/** @returns {Array} transactions whos status is unapproved */
|
|
this.getUnapprovedTxCount = () =>
|
|
Object.keys(this.txStateManager.getUnapprovedTxList()).length;
|
|
|
|
/**
|
|
@returns {number} number of transactions that have the status submitted
|
|
@param {string} account - hex prefixed account
|
|
*/
|
|
this.getPendingTxCount = (account) =>
|
|
this.txStateManager.getPendingTransactions(account).length;
|
|
|
|
/** see txStateManager */
|
|
this.getFilteredTxList = (opts) =>
|
|
this.txStateManager.getFilteredTxList(opts);
|
|
}
|
|
|
|
// called once on startup
|
|
async _updatePendingTxsAfterFirstBlock() {
|
|
// wait for first block so we know we're ready
|
|
await this.blockTracker.getLatestBlock();
|
|
// get status update for all pending transactions (for the current network)
|
|
await this.pendingTxTracker.updatePendingTxs();
|
|
}
|
|
|
|
/**
|
|
If transaction controller was rebooted with transactions that are uncompleted
|
|
in steps of the transaction signing or user confirmation process it will either
|
|
transition txMetas to a failed state or try to redo those tasks.
|
|
*/
|
|
|
|
_onBootCleanUp() {
|
|
this.txStateManager
|
|
.getFilteredTxList({
|
|
status: TRANSACTION_STATUSES.UNAPPROVED,
|
|
loadingDefaults: true,
|
|
})
|
|
.forEach((tx) => {
|
|
this.addTxGasDefaults(tx)
|
|
.then((txMeta) => {
|
|
txMeta.loadingDefaults = false;
|
|
this.txStateManager.updateTx(
|
|
txMeta,
|
|
'transactions: gas estimation for tx on boot',
|
|
);
|
|
})
|
|
.catch((error) => {
|
|
const txMeta = this.txStateManager.getTx(tx.id);
|
|
txMeta.loadingDefaults = false;
|
|
this.txStateManager.updateTx(
|
|
txMeta,
|
|
'failed to estimate gas during boot cleanup.',
|
|
);
|
|
this.txStateManager.setTxStatusFailed(txMeta.id, error);
|
|
});
|
|
});
|
|
|
|
this.txStateManager
|
|
.getFilteredTxList({
|
|
status: TRANSACTION_STATUSES.APPROVED,
|
|
})
|
|
.forEach((txMeta) => {
|
|
const txSignError = new Error(
|
|
'Transaction found as "approved" during boot - possibly stuck during signing',
|
|
);
|
|
this.txStateManager.setTxStatusFailed(txMeta.id, txSignError);
|
|
});
|
|
}
|
|
|
|
/**
|
|
is called in constructor applies the listeners for pendingTxTracker txStateManager
|
|
and blockTracker
|
|
*/
|
|
_setupListeners() {
|
|
this.txStateManager.on(
|
|
'tx:status-update',
|
|
this.emit.bind(this, 'tx:status-update'),
|
|
);
|
|
this._setupBlockTrackerListener();
|
|
this.pendingTxTracker.on('tx:warning', (txMeta) => {
|
|
this.txStateManager.updateTx(
|
|
txMeta,
|
|
'transactions/pending-tx-tracker#event: tx:warning',
|
|
);
|
|
});
|
|
this.pendingTxTracker.on(
|
|
'tx:failed',
|
|
this.txStateManager.setTxStatusFailed.bind(this.txStateManager),
|
|
);
|
|
this.pendingTxTracker.on('tx:confirmed', (txId, transactionReceipt) =>
|
|
this.confirmTransaction(txId, transactionReceipt),
|
|
);
|
|
this.pendingTxTracker.on(
|
|
'tx:dropped',
|
|
this.txStateManager.setTxStatusDropped.bind(this.txStateManager),
|
|
);
|
|
this.pendingTxTracker.on('tx:block-update', (txMeta, latestBlockNumber) => {
|
|
if (!txMeta.firstRetryBlockNumber) {
|
|
txMeta.firstRetryBlockNumber = latestBlockNumber;
|
|
this.txStateManager.updateTx(
|
|
txMeta,
|
|
'transactions/pending-tx-tracker#event: tx:block-update',
|
|
);
|
|
}
|
|
});
|
|
this.pendingTxTracker.on('tx:retry', (txMeta) => {
|
|
if (!('retryCount' in txMeta)) {
|
|
txMeta.retryCount = 0;
|
|
}
|
|
txMeta.retryCount += 1;
|
|
this.txStateManager.updateTx(
|
|
txMeta,
|
|
'transactions/pending-tx-tracker#event: tx:retry',
|
|
);
|
|
});
|
|
}
|
|
|
|
/**
|
|
* @typedef { 'transfer' | 'approve' | 'transferfrom' | 'contractInteraction'| 'sentEther' } InferrableTransactionTypes
|
|
*/
|
|
|
|
/**
|
|
* @typedef {Object} InferTransactionTypeResult
|
|
* @property {InferrableTransactionTypes} type - The type of transaction
|
|
* @property {string} getCodeResponse - The contract code, in hex format if
|
|
* it exists. '0x0' or '0x' are also indicators of non-existent contract
|
|
* code
|
|
*/
|
|
|
|
/**
|
|
* Determines the type of the transaction by analyzing the txParams.
|
|
* This method will return one of the types defined in shared/constants/transactions
|
|
* It will never return TRANSACTION_TYPE_CANCEL or TRANSACTION_TYPE_RETRY as these
|
|
* represent specific events that we control from the extension and are added manually
|
|
* at transaction creation.
|
|
* @param {Object} txParams - Parameters for the transaction
|
|
* @returns {InferTransactionTypeResult}
|
|
*/
|
|
async _determineTransactionType(txParams) {
|
|
const { data, to } = txParams;
|
|
let name;
|
|
try {
|
|
name = data && hstInterface.parseTransaction({ data }).name;
|
|
} catch (error) {
|
|
log.debug('Failed to parse transaction data.', error, data);
|
|
}
|
|
|
|
const tokenMethodName = [
|
|
TRANSACTION_TYPES.TOKEN_METHOD_APPROVE,
|
|
TRANSACTION_TYPES.TOKEN_METHOD_TRANSFER,
|
|
TRANSACTION_TYPES.TOKEN_METHOD_TRANSFER_FROM,
|
|
].find((methodName) => methodName === name && name.toLowerCase());
|
|
|
|
let result;
|
|
if (data && tokenMethodName) {
|
|
result = tokenMethodName;
|
|
} else if (data && !to) {
|
|
result = TRANSACTION_TYPES.DEPLOY_CONTRACT;
|
|
}
|
|
|
|
let code;
|
|
if (!result) {
|
|
try {
|
|
code = await this.query.getCode(to);
|
|
} catch (e) {
|
|
code = null;
|
|
log.warn(e);
|
|
}
|
|
|
|
const codeIsEmpty = !code || code === '0x' || code === '0x0';
|
|
|
|
result = codeIsEmpty
|
|
? TRANSACTION_TYPES.SENT_ETHER
|
|
: TRANSACTION_TYPES.CONTRACT_INTERACTION;
|
|
}
|
|
|
|
return { type: result, getCodeResponse: code };
|
|
}
|
|
|
|
/**
|
|
Sets other txMeta statuses to dropped if the txMeta that has been confirmed has other transactions
|
|
in the list have the same nonce
|
|
|
|
@param {number} txId - the txId of the transaction that has been confirmed in a block
|
|
*/
|
|
_markNonceDuplicatesDropped(txId) {
|
|
// get the confirmed transactions nonce and from address
|
|
const txMeta = this.txStateManager.getTx(txId);
|
|
const { nonce, from } = txMeta.txParams;
|
|
const sameNonceTxs = this.txStateManager.getFilteredTxList({ nonce, from });
|
|
if (!sameNonceTxs.length) {
|
|
return;
|
|
}
|
|
// mark all same nonce transactions as dropped and give i a replacedBy hash
|
|
sameNonceTxs.forEach((otherTxMeta) => {
|
|
if (otherTxMeta.id === txId) {
|
|
return;
|
|
}
|
|
otherTxMeta.replacedBy = txMeta.hash;
|
|
this.txStateManager.updateTx(
|
|
txMeta,
|
|
'transactions/pending-tx-tracker#event: tx:confirmed reference to confirmed txHash with same nonce',
|
|
);
|
|
this.txStateManager.setTxStatusDropped(otherTxMeta.id);
|
|
});
|
|
}
|
|
|
|
_setupBlockTrackerListener() {
|
|
let listenersAreActive = false;
|
|
const latestBlockHandler = this._onLatestBlock.bind(this);
|
|
const { blockTracker, txStateManager } = this;
|
|
|
|
txStateManager.on('tx:status-update', updateSubscription);
|
|
updateSubscription();
|
|
|
|
function updateSubscription() {
|
|
const pendingTxs = txStateManager.getPendingTransactions();
|
|
if (!listenersAreActive && pendingTxs.length > 0) {
|
|
blockTracker.on('latest', latestBlockHandler);
|
|
listenersAreActive = true;
|
|
} else if (listenersAreActive && !pendingTxs.length) {
|
|
blockTracker.removeListener('latest', latestBlockHandler);
|
|
listenersAreActive = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
async _onLatestBlock(blockNumber) {
|
|
try {
|
|
await this.pendingTxTracker.updatePendingTxs();
|
|
} catch (err) {
|
|
log.error(err);
|
|
}
|
|
try {
|
|
await this.pendingTxTracker.resubmitPendingTxs(blockNumber);
|
|
} catch (err) {
|
|
log.error(err);
|
|
}
|
|
}
|
|
|
|
/**
|
|
Updates the memStore in transaction controller
|
|
*/
|
|
_updateMemstore() {
|
|
const unapprovedTxs = this.txStateManager.getUnapprovedTxList();
|
|
const currentNetworkTxList = this.txStateManager.getTxList(
|
|
MAX_MEMSTORE_TX_LIST_SIZE,
|
|
);
|
|
this.memStore.updateState({ unapprovedTxs, currentNetworkTxList });
|
|
}
|
|
|
|
_trackSwapsMetrics(txMeta, approvalTxMeta) {
|
|
if (this._getParticipateInMetrics() && txMeta.swapMetaData) {
|
|
if (txMeta.txReceipt.status === '0x0') {
|
|
this._trackMetaMetricsEvent({
|
|
event: 'Swap Failed',
|
|
sensitiveProperties: { ...txMeta.swapMetaData },
|
|
category: 'swaps',
|
|
});
|
|
} else {
|
|
const tokensReceived = getSwapsTokensReceivedFromTxMeta(
|
|
txMeta.destinationTokenSymbol,
|
|
txMeta,
|
|
txMeta.destinationTokenAddress,
|
|
txMeta.txParams.from,
|
|
txMeta.destinationTokenDecimals,
|
|
approvalTxMeta,
|
|
);
|
|
|
|
const quoteVsExecutionRatio = `${new BigNumber(tokensReceived, 10)
|
|
.div(txMeta.swapMetaData.token_to_amount, 10)
|
|
.times(100)
|
|
.round(2)}%`;
|
|
|
|
const estimatedVsUsedGasRatio = `${new BigNumber(
|
|
txMeta.txReceipt.gasUsed,
|
|
16,
|
|
)
|
|
.div(txMeta.swapMetaData.estimated_gas, 10)
|
|
.times(100)
|
|
.round(2)}%`;
|
|
|
|
this._trackMetaMetricsEvent({
|
|
event: 'Swap Completed',
|
|
category: 'swaps',
|
|
sensitiveProperties: {
|
|
...txMeta.swapMetaData,
|
|
token_to_amount_received: tokensReceived,
|
|
quote_vs_executionRatio: quoteVsExecutionRatio,
|
|
estimated_vs_used_gasRatio: estimatedVsUsedGasRatio,
|
|
},
|
|
});
|
|
}
|
|
}
|
|
}
|
|
}
|