mirror of
https://github.com/kremalicious/metamask-extension.git
synced 2024-12-01 00:28:06 +01:00
496 lines
14 KiB
JavaScript
496 lines
14 KiB
JavaScript
const Component = require('react').Component
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const { connect } = require('react-redux')
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const h = require('react-hyperscript')
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const inherits = require('util').inherits
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const ethAbi = require('ethereumjs-abi')
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const tokenAbi = require('human-standard-token-abi')
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const abiDecoder = require('abi-decoder')
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abiDecoder.addABI(tokenAbi)
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const actions = require('../../actions')
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const clone = require('clone')
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const Identicon = require('../identicon')
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const ethUtil = require('ethereumjs-util')
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const BN = ethUtil.BN
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const {
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conversionUtil,
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multiplyCurrencies,
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addCurrencies,
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} = require('../../conversion-util')
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const {
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calcTokenAmount,
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} = require('../../token-util')
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const { MIN_GAS_PRICE_HEX } = require('../send/send-constants')
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const {
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getTokenExchangeRate,
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getSelectedAddress,
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getSelectedTokenContract,
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} = require('../../selectors')
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module.exports = connect(mapStateToProps, mapDispatchToProps)(ConfirmSendToken)
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function mapStateToProps (state, ownProps) {
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const { token: { symbol }, txData } = ownProps
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const { txParams } = txData || {}
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const tokenData = txParams.data && abiDecoder.decodeMethod(txParams.data)
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const {
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conversionRate,
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identities,
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currentCurrency,
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} = state.metamask
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const selectedAddress = getSelectedAddress(state)
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const tokenExchangeRate = getTokenExchangeRate(state, symbol)
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return {
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conversionRate,
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identities,
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selectedAddress,
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tokenExchangeRate,
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tokenData: tokenData || {},
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currentCurrency: currentCurrency.toUpperCase(),
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send: state.metamask.send,
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tokenContract: getSelectedTokenContract(state),
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}
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}
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function mapDispatchToProps (dispatch, ownProps) {
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const { token: { symbol } } = ownProps
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return {
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backToAccountDetail: address => dispatch(actions.backToAccountDetail(address)),
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cancelTransaction: ({ id }) => dispatch(actions.cancelTx({ id })),
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updateTokenExchangeRate: () => dispatch(actions.updateTokenExchangeRate(symbol)),
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editTransaction: txMeta => {
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const { token: { address } } = ownProps
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const { txParams, id } = txMeta
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const tokenData = txParams.data && abiDecoder.decodeMethod(txParams.data)
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const { params = [] } = tokenData
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const { value } = params[1] || {}
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const amount = conversionUtil(value, {
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fromNumericBase: 'dec',
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toNumericBase: 'hex',
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})
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const {
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gas: gasLimit,
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gasPrice,
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to,
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} = txParams
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dispatch(actions.setSelectedToken(address))
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dispatch(actions.updateSend({
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gasLimit,
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gasPrice,
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gasTotal: null,
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to,
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amount,
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errors: { to: null, amount: null },
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editingTransactionId: id,
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}))
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dispatch(actions.showSendTokenPage())
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},
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}
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}
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inherits(ConfirmSendToken, Component)
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function ConfirmSendToken () {
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Component.call(this)
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this.state = {}
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this.onSubmit = this.onSubmit.bind(this)
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}
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ConfirmSendToken.prototype.componentWillMount = function () {
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const { tokenContract, selectedAddress } = this.props
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tokenContract && tokenContract
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.balanceOf(selectedAddress)
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.then(usersToken => {
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})
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this.props.updateTokenExchangeRate()
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}
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ConfirmSendToken.prototype.getAmount = function () {
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const {
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conversionRate,
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tokenExchangeRate,
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token,
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tokenData,
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send: { amount, editingTransactionId },
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} = this.props
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const { params = [] } = tokenData
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let { value } = params[1] || {}
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const { decimals } = token
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if (editingTransactionId) {
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value = conversionUtil(amount, {
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fromNumericBase: 'hex',
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toNumericBase: 'dec',
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})
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}
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const sendTokenAmount = calcTokenAmount(value, decimals)
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return {
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fiat: tokenExchangeRate
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? +(sendTokenAmount * tokenExchangeRate * conversionRate).toFixed(2)
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: null,
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token: typeof value === 'undefined'
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? 'Unknown'
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: +sendTokenAmount.toFixed(decimals),
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}
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}
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ConfirmSendToken.prototype.getGasFee = function () {
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const { conversionRate, tokenExchangeRate, token, currentCurrency } = this.props
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const txMeta = this.gatherTxMeta()
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const txParams = txMeta.txParams || {}
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const { decimals } = token
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const gas = txParams.gas
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const gasPrice = txParams.gasPrice || MIN_GAS_PRICE_HEX
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const gasTotal = multiplyCurrencies(gas, gasPrice, {
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multiplicandBase: 16,
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multiplierBase: 16,
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})
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const FIAT = conversionUtil(gasTotal, {
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fromNumericBase: 'BN',
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toNumericBase: 'dec',
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fromDenomination: 'WEI',
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fromCurrency: 'ETH',
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toCurrency: currentCurrency,
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numberOfDecimals: 2,
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conversionRate,
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})
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const ETH = conversionUtil(gasTotal, {
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fromNumericBase: 'BN',
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toNumericBase: 'dec',
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fromDenomination: 'WEI',
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fromCurrency: 'ETH',
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toCurrency: 'ETH',
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numberOfDecimals: 6,
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conversionRate,
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})
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const tokenGas = multiplyCurrencies(gas, gasPrice, {
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toNumericBase: 'dec',
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multiplicandBase: 16,
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multiplierBase: 16,
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toCurrency: 'BAT',
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conversionRate: tokenExchangeRate,
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invertConversionRate: true,
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fromDenomination: 'WEI',
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numberOfDecimals: decimals || 4,
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})
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return {
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fiat: +Number(FIAT).toFixed(2),
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eth: ETH,
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token: tokenExchangeRate
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? tokenGas
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: null,
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}
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}
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ConfirmSendToken.prototype.getData = function () {
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const { identities, tokenData } = this.props
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const { params = [] } = tokenData
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const { value } = params[0] || {}
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const txMeta = this.gatherTxMeta()
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const txParams = txMeta.txParams || {}
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return {
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from: {
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address: txParams.from,
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name: identities[txParams.from].name,
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},
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to: {
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address: value,
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name: identities[value] ? identities[value].name : 'New Recipient',
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},
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memo: txParams.memo || '',
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}
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}
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ConfirmSendToken.prototype.renderHeroAmount = function () {
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const { token: { symbol }, currentCurrency } = this.props
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const { fiat: fiatAmount, token: tokenAmount } = this.getAmount()
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const txMeta = this.gatherTxMeta()
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const txParams = txMeta.txParams || {}
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const { memo = '' } = txParams
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return fiatAmount
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? (
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h('div.confirm-send-token__hero-amount-wrapper', [
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h('h3.flex-center.confirm-screen-send-amount', `${fiatAmount}`),
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h('h3.flex-center.confirm-screen-send-amount-currency', currentCurrency),
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h('div.flex-center.confirm-memo-wrapper', [
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h('h3.confirm-screen-send-memo', [ memo ? `"${memo}"` : '' ]),
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]),
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])
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)
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: (
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h('div.confirm-send-token__hero-amount-wrapper', [
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h('h3.flex-center.confirm-screen-send-amount', tokenAmount),
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h('h3.flex-center.confirm-screen-send-amount-currency', symbol),
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h('div.flex-center.confirm-memo-wrapper', [
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h('h3.confirm-screen-send-memo', [ memo ? `"${memo}"` : '' ]),
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]),
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])
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)
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}
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ConfirmSendToken.prototype.renderGasFee = function () {
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const { token: { symbol }, currentCurrency } = this.props
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const { fiat: fiatGas, token: tokenGas, eth: ethGas } = this.getGasFee()
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return (
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h('section.flex-row.flex-center.confirm-screen-row', [
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h('span.confirm-screen-label.confirm-screen-section-column', [ 'Gas Fee' ]),
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h('div.confirm-screen-section-column', [
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h('div.confirm-screen-row-info', `${fiatGas} ${currentCurrency}`),
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h(
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'div.confirm-screen-row-detail',
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tokenGas ? `${tokenGas} ${symbol}` : `${ethGas} ETH`
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),
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]),
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])
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)
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}
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ConfirmSendToken.prototype.renderTotalPlusGas = function () {
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const { token: { symbol }, currentCurrency } = this.props
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const { fiat: fiatAmount, token: tokenAmount } = this.getAmount()
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const { fiat: fiatGas, token: tokenGas } = this.getGasFee()
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return fiatAmount && fiatGas
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? (
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h('section.flex-row.flex-center.confirm-screen-total-box ', [
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h('div.confirm-screen-section-column', [
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h('span.confirm-screen-label', [ 'Total ' ]),
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h('div.confirm-screen-total-box__subtitle', [ 'Amount + Gas' ]),
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]),
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h('div.confirm-screen-section-column', [
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h('div.confirm-screen-row-info', `${addCurrencies(fiatAmount, fiatGas)} ${currentCurrency}`),
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h('div.confirm-screen-row-detail', `${addCurrencies(tokenAmount, tokenGas || '0')} ${symbol}`),
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]),
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])
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)
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: (
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h('section.flex-row.flex-center.confirm-screen-total-box ', [
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h('div.confirm-screen-section-column', [
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h('span.confirm-screen-label', [ 'Total ' ]),
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h('div.confirm-screen-total-box__subtitle', [ 'Amount + Gas' ]),
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]),
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h('div.confirm-screen-section-column', [
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h('div.confirm-screen-row-info', `${tokenAmount} ${symbol}`),
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h('div.confirm-screen-row-detail', `+ ${fiatGas} ${currentCurrency} Gas`),
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]),
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])
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)
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}
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ConfirmSendToken.prototype.render = function () {
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const { editTransaction } = this.props
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const txMeta = this.gatherTxMeta()
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const {
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from: {
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address: fromAddress,
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name: fromName,
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},
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to: {
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address: toAddress,
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name: toName,
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},
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} = this.getData()
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this.inputs = []
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return (
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h('div.confirm-screen-container.confirm-send-token', {
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style: { minWidth: '355px' },
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}, [
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// Main Send token Card
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h('div.confirm-screen-wrapper.flex-column.flex-grow', [
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h('h3.flex-center.confirm-screen-header', [
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h('button.confirm-screen-back-button', {
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onClick: () => editTransaction(txMeta),
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}, 'EDIT'),
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h('div.confirm-screen-title', 'Confirm Transaction'),
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h('div.confirm-screen-header-tip'),
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]),
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h('div.flex-row.flex-center.confirm-screen-identicons', [
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h('div.confirm-screen-account-wrapper', [
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h(
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Identicon,
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{
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address: fromAddress,
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diameter: 60,
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},
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),
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h('span.confirm-screen-account-name', fromName),
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// h('span.confirm-screen-account-number', fromAddress.slice(fromAddress.length - 4)),
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]),
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h('i.fa.fa-arrow-right.fa-lg'),
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h('div.confirm-screen-account-wrapper', [
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h(
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Identicon,
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{
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address: toAddress,
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diameter: 60,
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},
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),
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h('span.confirm-screen-account-name', toName),
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// h('span.confirm-screen-account-number', toAddress.slice(toAddress.length - 4)),
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]),
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]),
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// h('h3.flex-center.confirm-screen-sending-to-message', {
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// style: {
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// textAlign: 'center',
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// fontSize: '16px',
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// },
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// }, [
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// `You're sending to Recipient ...${toAddress.slice(toAddress.length - 4)}`,
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// ]),
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this.renderHeroAmount(),
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h('div.confirm-screen-rows', [
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h('section.flex-row.flex-center.confirm-screen-row', [
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h('span.confirm-screen-label.confirm-screen-section-column', [ 'From' ]),
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h('div.confirm-screen-section-column', [
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h('div.confirm-screen-row-info', fromName),
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h('div.confirm-screen-row-detail', `...${fromAddress.slice(fromAddress.length - 4)}`),
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]),
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]),
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toAddress && h('section.flex-row.flex-center.confirm-screen-row', [
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h('span.confirm-screen-label.confirm-screen-section-column', [ 'To' ]),
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h('div.confirm-screen-section-column', [
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h('div.confirm-screen-row-info', toName),
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h('div.confirm-screen-row-detail', `...${toAddress.slice(toAddress.length - 4)}`),
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]),
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]),
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this.renderGasFee(),
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this.renderTotalPlusGas(),
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]),
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]),
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h('form#pending-tx-form', {
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onSubmit: this.onSubmit,
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}, [
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// Cancel Button
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h('div.cancel.btn-light.confirm-screen-cancel-button', {
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onClick: (event) => this.cancel(event, txMeta),
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}, 'CANCEL'),
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// Accept Button
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h('button.confirm-screen-confirm-button', ['CONFIRM']),
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]),
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])
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)
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}
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ConfirmSendToken.prototype.onSubmit = function (event) {
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event.preventDefault()
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const txMeta = this.gatherTxMeta()
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const valid = this.checkValidity()
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this.setState({ valid, submitting: true })
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if (valid && this.verifyGasParams()) {
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this.props.sendTransaction(txMeta, event)
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} else {
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this.props.dispatch(actions.displayWarning('Invalid Gas Parameters'))
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this.setState({ submitting: false })
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}
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}
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ConfirmSendToken.prototype.cancel = function (event, txMeta) {
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event.preventDefault()
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this.props.cancelTransaction(txMeta)
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}
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ConfirmSendToken.prototype.checkValidity = function () {
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const form = this.getFormEl()
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const valid = form.checkValidity()
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return valid
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}
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ConfirmSendToken.prototype.getFormEl = function () {
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const form = document.querySelector('form#pending-tx-form')
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// Stub out form for unit tests:
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if (!form) {
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return { checkValidity () { return true } }
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}
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return form
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}
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// After a customizable state value has been updated,
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ConfirmSendToken.prototype.gatherTxMeta = function () {
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const props = this.props
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const state = this.state
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const txData = clone(state.txData) || clone(props.txData)
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if (props.send.editingTransactionId) {
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const {
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send: {
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memo,
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amount,
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gasLimit: gas,
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gasPrice,
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},
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} = props
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const { txParams: { from, to } } = txData
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const tokenParams = {
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from: ethUtil.addHexPrefix(from),
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value: '0',
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gas: ethUtil.addHexPrefix(gas),
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gasPrice: ethUtil.addHexPrefix(gasPrice),
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}
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const data = '0xa9059cbb' + Array.prototype.map.call(
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ethAbi.rawEncode(['address', 'uint256'], [to, ethUtil.addHexPrefix(amount)]),
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x => ('00' + x.toString(16)).slice(-2)
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).join('')
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txData.txParams = {
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...tokenParams,
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to: ethUtil.addHexPrefix(to),
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memo: memo && ethUtil.addHexPrefix(memo),
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data,
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}
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}
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// log.debug(`UI has defaulted to tx meta ${JSON.stringify(txData)}`)
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return txData
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}
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ConfirmSendToken.prototype.verifyGasParams = function () {
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// We call this in case the gas has not been modified at all
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if (!this.state) { return true }
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return (
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this._notZeroOrEmptyString(this.state.gas) &&
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this._notZeroOrEmptyString(this.state.gasPrice)
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)
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}
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ConfirmSendToken.prototype._notZeroOrEmptyString = function (obj) {
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return obj !== '' && obj !== '0x0'
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}
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ConfirmSendToken.prototype.bnMultiplyByFraction = function (targetBN, numerator, denominator) {
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const numBN = new BN(numerator)
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const denomBN = new BN(denominator)
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return targetBN.mul(numBN).div(denomBN)
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}
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