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723 lines
26 KiB
723 lines
26 KiB
const EventEmitter = require('safe-event-emitter')
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const ObservableStore = require('obs-store')
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const ethUtil = require('ethereumjs-util')
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const Transaction = require('ethereumjs-tx')
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const EthQuery = require('ethjs-query')
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const { errors: rpcErrors } = require('eth-json-rpc-errors')
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const abi = require('human-standard-token-abi')
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const abiDecoder = require('abi-decoder')
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abiDecoder.addABI(abi)
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const {
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TOKEN_METHOD_APPROVE,
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TOKEN_METHOD_TRANSFER,
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TOKEN_METHOD_TRANSFER_FROM,
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SEND_ETHER_ACTION_KEY,
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DEPLOY_CONTRACT_ACTION_KEY,
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CONTRACT_INTERACTION_KEY,
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} = require('../../../../ui/app/helpers/constants/transactions.js')
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const TransactionStateManager = require('./tx-state-manager')
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const TxGasUtil = require('./tx-gas-utils')
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const PendingTransactionTracker = require('./pending-tx-tracker')
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const NonceTracker = require('nonce-tracker')
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const txUtils = require('./lib/util')
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const cleanErrorStack = require('../../lib/cleanErrorStack')
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const log = require('loglevel')
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const recipientBlacklistChecker = require('./lib/recipient-blacklist-checker')
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const {
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TRANSACTION_TYPE_CANCEL,
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TRANSACTION_TYPE_RETRY,
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TRANSACTION_TYPE_STANDARD,
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TRANSACTION_STATUS_APPROVED,
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} = require('./enums')
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const { hexToBn, bnToHex, BnMultiplyByFraction } = require('../../lib/util')
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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 {Function} [opts.getGasPrice] - optional gas price calculator
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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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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.preferencesStore = opts.preferencesStore || new ObservableStore({})
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this.provider = opts.provider
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this.blockTracker = opts.blockTracker
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this.signEthTx = opts.signTransaction
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this.getGasPrice = opts.getGasPrice
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this.inProcessOfSigning = new Set()
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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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})
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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(this.txStateManager),
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getConfirmedTransactions: this.txStateManager.getConfirmedTransactions.bind(this.txStateManager),
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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(this.txStateManager),
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})
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this.txStateManager.store.subscribe(() => this.emit('update:badge'))
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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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this.preferencesStore.subscribe(() => this._updateMemstore())
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// request state update to finalize initialization
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this._updatePendingTxsAfterFirstBlock()
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}
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/** @returns {number} the chainId*/
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getChainId () {
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const networkState = this.networkStore.getState()
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const getChainId = parseInt(networkState)
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if (Number.isNaN(getChainId)) {
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return 0
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} else {
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return getChainId
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}
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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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@returns {Promise<string>} the hash of the transaction after being submitted to the network
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@param txParams {object} - txParams for the transaction
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@param opts {object} - 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(`MetaMaskController newUnapprovedTransaction ${JSON.stringify(txParams)}`)
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const initialTxMeta = await this.addUnapprovedTransaction(txParams)
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initialTxMeta.origin = opts.origin
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this.txStateManager.updateTx(initialTxMeta, '#newUnapprovedTransaction - adding the origin')
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// listen for tx completion (success, fail)
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return new Promise((resolve, reject) => {
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this.txStateManager.once(`${initialTxMeta.id}:finished`, (finishedTxMeta) => {
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switch (finishedTxMeta.status) {
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case 'submitted':
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return resolve(finishedTxMeta.hash)
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case 'rejected':
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return reject(cleanErrorStack(rpcErrors.eth.userRejectedRequest('MetaMask Tx Signature: User denied transaction signature.')))
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case 'failed':
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return reject(cleanErrorStack(rpcErrors.internal(finishedTxMeta.err.message)))
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default:
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return reject(cleanErrorStack(rpcErrors.internal(`MetaMask Tx Signature: Unknown problem: ${JSON.stringify(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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Validates and generates a txMeta with defaults and puts it in txStateManager
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store
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@returns {txMeta}
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*/
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async addUnapprovedTransaction (txParams) {
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// validate
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const normalizedTxParams = txUtils.normalizeTxParams(txParams)
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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 new Error(`Transaction from address isn't valid for this account`)
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}
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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._determineTransactionCategory` 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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type: TRANSACTION_TYPE_STANDARD,
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})
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const { transactionCategory, getCodeResponse } = await this._determineTransactionCategory(txParams)
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txMeta.transactionCategory = transactionCategory
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this.addTx(txMeta)
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this.emit('newUnapprovedTx', txMeta)
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try {
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// check whether recipient account is blacklisted
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recipientBlacklistChecker.checkAccount(txMeta.metamaskNetworkId, normalizedTxParams.to)
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// add default tx params
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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.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)
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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 txMeta {Object} - 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 txParams = txMeta.txParams
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// ensure value
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txParams.value = txParams.value ? ethUtil.addHexPrefix(txParams.value) : '0x0'
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txMeta.gasPriceSpecified = Boolean(txParams.gasPrice)
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let gasPrice = txParams.gasPrice
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if (!gasPrice) {
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gasPrice = this.getGasPrice ? this.getGasPrice() : await this.query.gasPrice()
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}
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txParams.gasPrice = ethUtil.addHexPrefix(gasPrice.toString(16))
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// set gasLimit
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return await this.txGasUtil.analyzeGasUsage(txMeta, getCodeResponse)
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}
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/**
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Creates a new txMeta with the same txParams as the original
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to allow the user to resign the transaction with a higher gas values
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@param originalTxId {number} - the id of the txMeta that
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you want to attempt to retry
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@param gasPrice {string=} - Optional gas price to be increased to use as the retry
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transaction's gas price
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@return {txMeta}
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*/
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async retryTransaction (originalTxId, gasPrice) {
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const originalTxMeta = this.txStateManager.getTx(originalTxId)
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const { txParams } = originalTxMeta
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const lastGasPrice = gasPrice || originalTxMeta.txParams.gasPrice
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const suggestedGasPriceBN = new ethUtil.BN(ethUtil.stripHexPrefix(this.getGasPrice()), 16)
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const lastGasPriceBN = new ethUtil.BN(ethUtil.stripHexPrefix(lastGasPrice), 16)
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// essentially lastGasPrice * 1.1 but
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// dont trust decimals so a round about way of doing that
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const lastGasPriceBNBumped = lastGasPriceBN.mul(new ethUtil.BN(110, 10)).div(new ethUtil.BN(100, 10))
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// transactions that are being retried require a >=%10 bump or the clients will throw an error
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txParams.gasPrice = suggestedGasPriceBN.gt(lastGasPriceBNBumped) ? `0x${suggestedGasPriceBN.toString(16)}` : `0x${lastGasPriceBNBumped.toString(16)}`
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const txMeta = this.txStateManager.generateTxMeta({
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txParams: originalTxMeta.txParams,
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lastGasPrice,
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loadingDefaults: false,
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type: TRANSACTION_TYPE_RETRY,
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})
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this.addTx(txMeta)
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this.emit('newUnapprovedTx', txMeta)
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return txMeta
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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) {
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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 = customGasPrice || 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: '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_STATUS_APPROVED,
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type: TRANSACTION_TYPE_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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async createSpeedUpTransaction (originalTxId, customGasPrice) {
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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 = customGasPrice || 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_STATUS_APPROVED,
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type: TRANSACTION_TYPE_RETRY,
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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 txMeta {Object} - 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 txMeta {Object}
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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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/**
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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 txId {number} - 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 incrmented & 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 = null } = txMeta
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customNonceValue = Number(customNonceValue)
|
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nonceLock = await this.nonceTracker.getNonceLock(fromAddress)
|
|
// add nonce to txParams
|
|
// if txMeta has lastGasPrice then it is a retry at same nonce with higher
|
|
// gas price transaction and their for the nonce should not be calculated
|
|
const nonce = txMeta.lastGasPrice ? txMeta.txParams.nonce : nonceLock.nextNonce
|
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const customOrNonce = customNonceValue || nonce
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|
|
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txMeta.txParams.nonce = ethUtil.addHexPrefix(customOrNonce.toString(16))
|
|
// add nonce debugging information to txMeta
|
|
txMeta.nonceDetails = nonceLock.nonceDetails
|
|
if (customNonceValue) {
|
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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 (err) {
|
|
log.error(err)
|
|
}
|
|
// 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 txId {number} - the tx's Id
|
|
@returns - rawTx {string}
|
|
*/
|
|
async signTransaction (txId) {
|
|
const txMeta = this.txStateManager.getTx(txId)
|
|
// add network/chain id
|
|
const chainId = this.getChainId()
|
|
const txParams = Object.assign({}, 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 txId {number} - the tx's Id
|
|
@param rawTx {string} - the hex string of the serialized signed transaction
|
|
@returns {Promise<void>}
|
|
*/
|
|
async publishTransaction (txId, rawTx) {
|
|
const txMeta = this.txStateManager.getTx(txId)
|
|
txMeta.rawTx = rawTx
|
|
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(ethUtil.addHexPrefix(rawTx)).toString('hex')
|
|
txHash = ethUtil.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) {
|
|
// 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 {
|
|
const txReceipt = await this.query.getTransactionReceipt(txMeta.hash)
|
|
|
|
// 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.toString(16)
|
|
: txReceipt.gasUsed
|
|
|
|
txMeta.txReceipt = {
|
|
...txReceipt,
|
|
gasUsed,
|
|
}
|
|
|
|
this.txStateManager.updateTx(txMeta, 'transactions#confirmTransaction - add txReceipt')
|
|
} catch (err) {
|
|
log.error(err)
|
|
}
|
|
|
|
this.txStateManager.setTxStatusConfirmed(txId)
|
|
this._markNonceDuplicatesDropped(txId)
|
|
}
|
|
|
|
/**
|
|
Convenience method for the ui thats sets the transaction to rejected
|
|
@param txId {number} - the tx's Id
|
|
@returns {Promise<void>}
|
|
*/
|
|
async cancelTransaction (txId) {
|
|
this.txStateManager.setTxStatusRejected(txId)
|
|
}
|
|
|
|
/**
|
|
Sets the txHas on the txMeta
|
|
@param txId {number} - the tx's Id
|
|
@param txHash {string} - 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 the state in transaction controller */
|
|
this.getState = () => this.memStore.getState()
|
|
/** @returns the network number stored in networkStore */
|
|
this.getNetwork = () => this.networkStore.getState()
|
|
/** @returns the user selected address */
|
|
this.getSelectedAddress = () => this.preferencesStore.getState().selectedAddress
|
|
/** Returns an array of transactions whos status is unapproved */
|
|
this.getUnapprovedTxCount = () => Object.keys(this.txStateManager.getUnapprovedTxList()).length
|
|
/**
|
|
@returns a number that represents how many transactions have the status submitted
|
|
@param account {String} - 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: '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) => {
|
|
tx.loadingDefaults = false
|
|
this.txStateManager.updateTx(tx, 'failed to estimate gas during boot cleanup.')
|
|
this.txStateManager.setTxStatusFailed(tx.id, error)
|
|
})
|
|
})
|
|
|
|
this.txStateManager.getFilteredTxList({
|
|
status: TRANSACTION_STATUS_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) => this.confirmTransaction(txId))
|
|
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++
|
|
this.txStateManager.updateTx(txMeta, 'transactions/pending-tx-tracker#event: tx:retry')
|
|
})
|
|
}
|
|
|
|
/**
|
|
Returns a "type" for a transaction out of the following list: simpleSend, tokenTransfer, tokenApprove,
|
|
contractDeployment, contractMethodCall
|
|
*/
|
|
async _determineTransactionCategory (txParams) {
|
|
const { data, to } = txParams
|
|
const { name } = data && abiDecoder.decodeMethod(data) || {}
|
|
const tokenMethodName = [
|
|
TOKEN_METHOD_APPROVE,
|
|
TOKEN_METHOD_TRANSFER,
|
|
TOKEN_METHOD_TRANSFER_FROM,
|
|
].find(tokenMethodName => tokenMethodName === name && name.toLowerCase())
|
|
|
|
let result
|
|
if (txParams.data && tokenMethodName) {
|
|
result = tokenMethodName
|
|
} else if (txParams.data && !to) {
|
|
result = DEPLOY_CONTRACT_ACTION_KEY
|
|
}
|
|
|
|
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 ? SEND_ETHER_ACTION_KEY : CONTRACT_INTERACTION_KEY
|
|
}
|
|
|
|
return { transactionCategory: 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 txId {Number} - 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 = this.blockTracker
|
|
const txStateManager = this.txStateManager
|
|
|
|
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 () {
|
|
this.pendingTxTracker.updatePendingTxs()
|
|
const unapprovedTxs = this.txStateManager.getUnapprovedTxList()
|
|
const selectedAddressTxList = this.txStateManager.getFilteredTxList({
|
|
from: this.getSelectedAddress(),
|
|
metamaskNetworkId: this.getNetwork(),
|
|
})
|
|
this.memStore.updateState({ unapprovedTxs, selectedAddressTxList })
|
|
}
|
|
}
|
|
|
|
module.exports = TransactionController
|
|
|