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mirror of https://github.com/kremalicious/metamask-extension.git synced 2024-12-23 09:52:26 +01:00
metamask-extension/ui/app/components/pending-tx/confirm-send-token.js
2018-05-29 10:23:06 -07:00

693 lines
21 KiB
JavaScript

const Component = require('react').Component
const { withRouter } = require('react-router-dom')
const { compose } = require('recompose')
const PropTypes = require('prop-types')
const connect = require('react-redux').connect
const h = require('react-hyperscript')
const inherits = require('util').inherits
const tokenAbi = require('human-standard-token-abi')
const abiDecoder = require('abi-decoder')
abiDecoder.addABI(tokenAbi)
const actions = require('../../actions')
const clone = require('clone')
const Identicon = require('../identicon')
const GasFeeDisplay = require('../send/gas-fee-display-v2.js')
const NetworkDisplay = require('../network-display')
const ethUtil = require('ethereumjs-util')
const BN = ethUtil.BN
const {
conversionUtil,
multiplyCurrencies,
addCurrencies,
} = require('../../conversion-util')
const {
getGasTotal,
isBalanceSufficient,
} = require('../send/send-utils')
const {
calcTokenAmount,
} = require('../../token-util')
const classnames = require('classnames')
const currencyFormatter = require('currency-formatter')
const currencies = require('currency-formatter/currencies')
const { MIN_GAS_PRICE_HEX } = require('../send/send-constants')
const {
getTokenExchangeRate,
getSelectedAddress,
getSelectedTokenContract,
} = require('../../selectors')
const { SEND_ROUTE, DEFAULT_ROUTE } = require('../../routes')
const {
ENVIRONMENT_TYPE_POPUP,
ENVIRONMENT_TYPE_NOTIFICATION,
} = require('../../../../app/scripts/lib/enums')
ConfirmSendToken.contextTypes = {
t: PropTypes.func,
}
module.exports = compose(
withRouter,
connect(mapStateToProps, mapDispatchToProps)
)(ConfirmSendToken)
function mapStateToProps (state, ownProps) {
const { token: { address }, txData } = ownProps
const { txParams } = txData || {}
const tokenData = txParams.data && abiDecoder.decodeMethod(txParams.data)
const {
conversionRate,
identities,
currentCurrency,
} = state.metamask
const accounts = state.metamask.accounts
const selectedAddress = getSelectedAddress(state)
const tokenExchangeRate = getTokenExchangeRate(state, address)
const { balance } = accounts[selectedAddress]
return {
conversionRate,
identities,
selectedAddress,
tokenExchangeRate,
tokenData: tokenData || {},
currentCurrency: currentCurrency.toUpperCase(),
send: state.metamask.send,
tokenContract: getSelectedTokenContract(state),
balance,
}
}
function mapDispatchToProps (dispatch, ownProps) {
return {
backToAccountDetail: address => dispatch(actions.backToAccountDetail(address)),
cancelTransaction: ({ id }) => dispatch(actions.cancelTx({ id })),
editTransaction: txMeta => {
const { token: { address } } = ownProps
const { txParams = {}, id } = txMeta
const tokenData = txParams.data && abiDecoder.decodeMethod(txParams.data) || {}
const { params = [] } = tokenData
const { value: to } = params[0] || {}
const { value: tokenAmountInDec } = params[1] || {}
const tokenAmountInHex = conversionUtil(tokenAmountInDec, {
fromNumericBase: 'dec',
toNumericBase: 'hex',
})
const {
gas: gasLimit,
gasPrice,
} = txParams
dispatch(actions.setSelectedToken(address))
dispatch(actions.updateSend({
gasLimit,
gasPrice,
gasTotal: null,
to,
amount: tokenAmountInHex,
errors: { to: null, amount: null },
editingTransactionId: id,
token: ownProps.token,
}))
dispatch(actions.showSendTokenPage())
},
showCustomizeGasModal: (txMeta, sendGasLimit, sendGasPrice, sendGasTotal) => {
const { id, txParams, lastGasPrice } = txMeta
const { gas: txGasLimit, gasPrice: txGasPrice } = txParams
const tokenData = txParams.data && abiDecoder.decodeMethod(txParams.data)
const { params = [] } = tokenData
const { value: to } = params[0] || {}
const { value: tokenAmountInDec } = params[1] || {}
const tokenAmountInHex = conversionUtil(tokenAmountInDec, {
fromNumericBase: 'dec',
toNumericBase: 'hex',
})
let forceGasMin
if (lastGasPrice) {
forceGasMin = ethUtil.addHexPrefix(multiplyCurrencies(lastGasPrice, 1.1, {
multiplicandBase: 16,
multiplierBase: 10,
toNumericBase: 'hex',
fromDenomination: 'WEI',
}))
}
dispatch(actions.updateSend({
gasLimit: sendGasLimit || txGasLimit,
gasPrice: sendGasPrice || txGasPrice,
editingTransactionId: id,
gasTotal: sendGasTotal,
to,
amount: tokenAmountInHex,
forceGasMin,
}))
dispatch(actions.showModal({ name: 'CUSTOMIZE_GAS' }))
},
updateSendErrors: error => dispatch(actions.updateSendErrors(error)),
}
}
inherits(ConfirmSendToken, Component)
function ConfirmSendToken () {
Component.call(this)
this.state = {}
this.onSubmit = this.onSubmit.bind(this)
}
ConfirmSendToken.prototype.editTransaction = function (txMeta) {
const { editTransaction, history } = this.props
editTransaction(txMeta)
history.push(SEND_ROUTE)
}
ConfirmSendToken.prototype.updateComponentSendErrors = function (prevProps) {
const {
balance: oldBalance,
conversionRate: oldConversionRate,
} = prevProps
const {
updateSendErrors,
balance,
conversionRate,
send: {
errors: {
simulationFails,
},
},
} = this.props
const txMeta = this.gatherTxMeta()
const shouldUpdateBalanceSendErrors = balance && [
balance !== oldBalance,
conversionRate !== oldConversionRate,
].some(x => Boolean(x))
if (shouldUpdateBalanceSendErrors) {
const balanceIsSufficient = this.isBalanceSufficient(txMeta)
updateSendErrors({
insufficientFunds: balanceIsSufficient ? false : this.context.t('insufficientFunds'),
})
}
const shouldUpdateSimulationSendError = Boolean(txMeta.simulationFails) !== Boolean(simulationFails)
if (shouldUpdateSimulationSendError) {
updateSendErrors({
simulationFails: !txMeta.simulationFails ? false : this.context.t('transactionError'),
})
}
}
ConfirmSendToken.prototype.componentWillMount = function () {
const { tokenContract, selectedAddress } = this.props
tokenContract && tokenContract
.balanceOf(selectedAddress)
.then(usersToken => {
})
this.updateComponentSendErrors({})
}
ConfirmSendToken.prototype.componentDidUpdate = function (prevProps) {
this.updateComponentSendErrors(prevProps)
}
ConfirmSendToken.prototype.getAmount = function () {
const {
conversionRate,
tokenExchangeRate,
token,
tokenData,
send: { amount, editingTransactionId },
} = this.props
const { params = [] } = tokenData
let { value } = params[1] || {}
const { decimals } = token
if (editingTransactionId) {
value = conversionUtil(amount, {
fromNumericBase: 'hex',
toNumericBase: 'dec',
})
}
const sendTokenAmount = calcTokenAmount(value, decimals)
return {
fiat: tokenExchangeRate
? +(sendTokenAmount * tokenExchangeRate * conversionRate).toFixed(2)
: null,
token: typeof value === 'undefined'
? this.context.t('unknown')
: +sendTokenAmount.toFixed(decimals),
}
}
ConfirmSendToken.prototype.getGasFee = function () {
const { conversionRate, tokenExchangeRate, token, currentCurrency } = this.props
const txMeta = this.gatherTxMeta()
const txParams = txMeta.txParams || {}
const { decimals } = token
const gas = txParams.gas
const gasPrice = txParams.gasPrice || MIN_GAS_PRICE_HEX
const gasTotal = multiplyCurrencies(gas, gasPrice, {
multiplicandBase: 16,
multiplierBase: 16,
})
const FIAT = conversionUtil(gasTotal, {
fromNumericBase: 'BN',
toNumericBase: 'dec',
fromDenomination: 'WEI',
fromCurrency: 'ETH',
toCurrency: currentCurrency,
numberOfDecimals: 2,
conversionRate,
})
const ETH = conversionUtil(gasTotal, {
fromNumericBase: 'BN',
toNumericBase: 'dec',
fromDenomination: 'WEI',
fromCurrency: 'ETH',
toCurrency: 'ETH',
numberOfDecimals: 6,
conversionRate,
})
const tokenGas = multiplyCurrencies(gas, gasPrice, {
toNumericBase: 'dec',
multiplicandBase: 16,
multiplierBase: 16,
toCurrency: 'BAT',
conversionRate: tokenExchangeRate,
invertConversionRate: true,
fromDenomination: 'WEI',
numberOfDecimals: decimals || 4,
})
return {
fiat: +Number(FIAT).toFixed(2),
eth: ETH,
token: tokenExchangeRate
? tokenGas
: null,
gasFeeInHex: gasTotal.toString(16),
}
}
ConfirmSendToken.prototype.getData = function () {
const { identities, tokenData } = this.props
const { params = [] } = tokenData
const { value } = params[0] || {}
const txMeta = this.gatherTxMeta()
const txParams = txMeta.txParams || {}
return {
from: {
address: txParams.from,
name: identities[txParams.from].name,
},
to: {
address: value,
name: identities[value] ? identities[value].name : this.context.t('newRecipient'),
},
memo: txParams.memo || '',
}
}
ConfirmSendToken.prototype.renderHeroAmount = function () {
const { token: { symbol }, currentCurrency } = this.props
const { fiat: fiatAmount, token: tokenAmount } = this.getAmount()
const txMeta = this.gatherTxMeta()
const txParams = txMeta.txParams || {}
const { memo = '' } = txParams
const convertedAmountInFiat = this.convertToRenderableCurrency(fiatAmount, currentCurrency)
return fiatAmount
? (
h('div.confirm-send-token__hero-amount-wrapper', [
h('h3.flex-center.confirm-screen-send-amount', `${convertedAmountInFiat}`),
h('h3.flex-center.confirm-screen-send-amount-currency', currentCurrency),
h('div.flex-center.confirm-memo-wrapper', [
h('h3.confirm-screen-send-memo', [ memo ? `"${memo}"` : '' ]),
]),
])
)
: (
h('div.confirm-send-token__hero-amount-wrapper', [
h('h3.flex-center.confirm-screen-send-amount', tokenAmount),
h('h3.flex-center.confirm-screen-send-amount-currency', symbol),
h('div.flex-center.confirm-memo-wrapper', [
h('h3.confirm-screen-send-memo', [ memo ? `"${memo}"` : '' ]),
]),
])
)
}
ConfirmSendToken.prototype.renderGasFee = function () {
const {
currentCurrency: convertedCurrency,
conversionRate,
send: { gasTotal, gasLimit: sendGasLimit, gasPrice: sendGasPrice },
showCustomizeGasModal,
} = this.props
const txMeta = this.gatherTxMeta()
const { gasFeeInHex } = this.getGasFee()
return (
h('section.flex-row.flex-center.confirm-screen-row', [
h('span.confirm-screen-label.confirm-screen-section-column', [ this.context.t('gasFee') ]),
h('div.confirm-screen-section-column', [
h(GasFeeDisplay, {
gasTotal: gasTotal || gasFeeInHex,
conversionRate,
convertedCurrency,
onClick: () => showCustomizeGasModal(txMeta, sendGasLimit, sendGasPrice, gasTotal),
}),
]),
])
)
}
ConfirmSendToken.prototype.renderTotalPlusGas = function () {
const { token: { symbol }, currentCurrency, send: { errors } } = this.props
const { fiat: fiatAmount, token: tokenAmount } = this.getAmount()
const { fiat: fiatGas, token: tokenGas } = this.getGasFee()
const totalInFIAT = fiatAmount && fiatGas && addCurrencies(fiatAmount, fiatGas)
const convertedTotalInFiat = this.convertToRenderableCurrency(totalInFIAT, currentCurrency)
return fiatAmount && fiatGas
? (
h('section.flex-row.flex-center.confirm-screen-row.confirm-screen-total-box ', [
h('div.confirm-screen-section-column', [
h('span.confirm-screen-label', [ this.context.t('total') + ' ' ]),
h('div.confirm-screen-total-box__subtitle', [ this.context.t('amountPlusGas') ]),
]),
h('div.confirm-screen-section-column', [
h('div.confirm-screen-row-info', `${convertedTotalInFiat} ${currentCurrency}`),
h('div.confirm-screen-row-detail', `${addCurrencies(tokenAmount, tokenGas || '0')} ${symbol}`),
]),
])
)
: (
h('section.flex-row.flex-center.confirm-screen-row.confirm-screen-total-box ', [
h('div', {
className: classnames({
'confirm-screen-section-column--with-error': errors['insufficientFunds'],
'confirm-screen-section-column': !errors['insufficientFunds'],
}),
}, [
h('span.confirm-screen-label', [ this.context.t('total') + ' ' ]),
h('div.confirm-screen-total-box__subtitle', [ this.context.t('amountPlusGas') ]),
]),
h('div.confirm-screen-section-column', [
h('div.confirm-screen-row-info', `${tokenAmount} ${symbol}`),
h('div.confirm-screen-row-detail', `+ ${fiatGas} ${currentCurrency} ${this.context.t('gas')}`),
]),
this.renderErrorMessage('insufficientFunds'),
])
)
}
ConfirmSendToken.prototype.renderErrorMessage = function (message) {
const { send: { errors } } = this.props
return errors[message]
? h('div.confirm-screen-error', [ errors[message] ])
: null
}
ConfirmSendToken.prototype.convertToRenderableCurrency = function (value, currencyCode) {
const upperCaseCurrencyCode = currencyCode.toUpperCase()
return currencies.find(currency => currency.code === upperCaseCurrencyCode)
? currencyFormatter.format(Number(value), {
code: upperCaseCurrencyCode,
})
: value
}
ConfirmSendToken.prototype.renderHeaderRow = function (isTxReprice) {
const windowType = window.METAMASK_UI_TYPE
const isFullScreen = windowType !== ENVIRONMENT_TYPE_NOTIFICATION &&
windowType !== ENVIRONMENT_TYPE_POPUP
if (isTxReprice && isFullScreen) {
return null
}
return (
h('.page-container__header-row', [
h('span.page-container__back-button', {
onClick: () => this.editTransaction(),
style: {
visibility: isTxReprice ? 'hidden' : 'initial',
},
}, 'Edit'),
!isFullScreen && h(NetworkDisplay),
])
)
}
ConfirmSendToken.prototype.renderHeader = function (isTxReprice) {
const title = isTxReprice ? this.context.t('speedUpTitle') : this.context.t('confirm')
const subtitle = isTxReprice
? this.context.t('speedUpSubtitle')
: this.context.t('pleaseReviewTransaction')
return (
h('.page-container__header', [
this.renderHeaderRow(isTxReprice),
h('.page-container__title', title),
h('.page-container__subtitle', subtitle),
])
)
}
ConfirmSendToken.prototype.render = function () {
const txMeta = this.gatherTxMeta()
const {
from: {
address: fromAddress,
name: fromName,
},
to: {
address: toAddress,
name: toName,
},
} = this.getData()
const isTxReprice = Boolean(txMeta.lastGasPrice)
return (
h('div.confirm-screen-container.confirm-send-token', [
// Main Send token Card
h('div.page-container', [
this.renderHeader(isTxReprice),
h('.page-container__content', [
h('div.flex-row.flex-center.confirm-screen-identicons', [
h('div.confirm-screen-account-wrapper', [
h(
Identicon,
{
address: fromAddress,
diameter: 60,
},
),
h('span.confirm-screen-account-name', fromName),
// h('span.confirm-screen-account-number', fromAddress.slice(fromAddress.length - 4)),
]),
h('i.fa.fa-arrow-right.fa-lg'),
h('div.confirm-screen-account-wrapper', [
h(
Identicon,
{
address: toAddress,
diameter: 60,
},
),
h('span.confirm-screen-account-name', toName),
// h('span.confirm-screen-account-number', toAddress.slice(toAddress.length - 4)),
]),
]),
// h('h3.flex-center.confirm-screen-sending-to-message', {
// style: {
// textAlign: 'center',
// fontSize: '16px',
// },
// }, [
// `You're sending to Recipient ...${toAddress.slice(toAddress.length - 4)}`,
// ]),
this.renderHeroAmount(),
h('div.confirm-screen-rows', [
h('section.flex-row.flex-center.confirm-screen-row', [
h('span.confirm-screen-label.confirm-screen-section-column', [ this.context.t('from') ]),
h('div.confirm-screen-section-column', [
h('div.confirm-screen-row-info', fromName),
h('div.confirm-screen-row-detail', `...${fromAddress.slice(fromAddress.length - 4)}`),
]),
]),
toAddress && h('section.flex-row.flex-center.confirm-screen-row', [
h('span.confirm-screen-label.confirm-screen-section-column', [ this.context.t('to') ]),
h('div.confirm-screen-section-column', [
h('div.confirm-screen-row-info', toName),
h('div.confirm-screen-row-detail', `...${toAddress.slice(toAddress.length - 4)}`),
]),
]),
this.renderGasFee(),
this.renderTotalPlusGas(),
]),
]),
h('form#pending-tx-form', {
className: 'confirm-screen-form',
onSubmit: this.onSubmit,
}, [
this.renderErrorMessage('simulationFails'),
h('.page-container__footer', [
// Cancel Button
h('button.btn-cancel.page-container__footer-button.allcaps', {
onClick: (event) => this.cancel(event, txMeta),
}, this.context.t('cancel')),
// Accept Button
h('button.btn-confirm.page-container__footer-button.allcaps', {
onClick: event => this.onSubmit(event),
}, [this.context.t('confirm')]),
]),
]),
]),
])
)
}
ConfirmSendToken.prototype.onSubmit = function (event) {
event.preventDefault()
const { updateSendErrors } = this.props
const txMeta = this.gatherTxMeta()
const valid = this.checkValidity()
const balanceIsSufficient = this.isBalanceSufficient(txMeta)
this.setState({ valid, submitting: true })
if (valid && this.verifyGasParams() && balanceIsSufficient) {
this.props.sendTransaction(txMeta, event)
} else if (!balanceIsSufficient) {
updateSendErrors({ insufficientFunds: this.context.t('insufficientFunds') })
} else {
updateSendErrors({ invalidGasParams: this.context.t('invalidGasParams') })
this.setState({ submitting: false })
}
}
ConfirmSendToken.prototype.isBalanceSufficient = function (txMeta) {
const {
balance,
conversionRate,
} = this.props
const {
txParams: {
gas,
gasPrice,
},
} = txMeta
const gasTotal = getGasTotal(gas, gasPrice)
return isBalanceSufficient({
amount: '0',
gasTotal,
balance,
conversionRate,
})
}
ConfirmSendToken.prototype.cancel = function (event, txMeta) {
event.preventDefault()
const { cancelTransaction } = this.props
cancelTransaction(txMeta)
.then(() => this.props.history.push(DEFAULT_ROUTE))
}
ConfirmSendToken.prototype.checkValidity = function () {
const form = this.getFormEl()
const valid = form.checkValidity()
return valid
}
ConfirmSendToken.prototype.getFormEl = function () {
const form = document.querySelector('form#pending-tx-form')
// Stub out form for unit tests:
if (!form) {
return { checkValidity () { return true } }
}
return form
}
// After a customizable state value has been updated,
ConfirmSendToken.prototype.gatherTxMeta = function () {
const props = this.props
const state = this.state
const txData = clone(state.txData) || clone(props.txData)
const { gasPrice: sendGasPrice, gas: sendGasLimit } = props.send
const {
lastGasPrice,
txParams: {
gasPrice: txGasPrice,
gas: txGasLimit,
},
} = txData
let forceGasMin
if (lastGasPrice) {
forceGasMin = ethUtil.addHexPrefix(multiplyCurrencies(lastGasPrice, 1.1, {
multiplicandBase: 16,
multiplierBase: 10,
toNumericBase: 'hex',
}))
}
txData.txParams.gasPrice = sendGasPrice || forceGasMin || txGasPrice
txData.txParams.gas = sendGasLimit || txGasLimit
// log.debug(`UI has defaulted to tx meta ${JSON.stringify(txData)}`)
return txData
}
ConfirmSendToken.prototype.verifyGasParams = function () {
// We call this in case the gas has not been modified at all
if (!this.state) { return true }
return (
this._notZeroOrEmptyString(this.state.gas) &&
this._notZeroOrEmptyString(this.state.gasPrice)
)
}
ConfirmSendToken.prototype._notZeroOrEmptyString = function (obj) {
return obj !== '' && obj !== '0x0'
}
ConfirmSendToken.prototype.bnMultiplyByFraction = function (targetBN, numerator, denominator) {
const numBN = new BN(numerator)
const denomBN = new BN(denominator)
return targetBN.mul(numBN).div(denomBN)
}