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metamask-extension/ui/app/components/pending-tx/confirm-send-ether.js
Alexander Tseung fa8500e09a commit
2018-04-05 09:53:24 -07:00

646 lines
18 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 actions = require('../../actions')
const clone = require('clone')
const ethUtil = require('ethereumjs-util')
const BN = ethUtil.BN
const hexToBn = require('../../../../app/scripts/lib/hex-to-bn')
const classnames = require('classnames')
const {
conversionUtil,
addCurrencies,
multiplyCurrencies,
} = require('../../conversion-util')
const {
getGasTotal,
isBalanceSufficient,
} = require('../send/send-utils')
const GasFeeDisplay = require('../send/gas-fee-display-v2')
const SenderToRecipient = require('../sender-to-recipient')
const NetworkDisplay = require('../network-display')
const { MIN_GAS_PRICE_HEX } = require('../send/send-constants')
const { SEND_ROUTE, DEFAULT_ROUTE } = require('../../routes')
ConfirmSendEther.contextTypes = {
t: PropTypes.func,
}
module.exports = compose(
withRouter,
connect(mapStateToProps, mapDispatchToProps)
)(ConfirmSendEther)
function mapStateToProps (state) {
const {
conversionRate,
identities,
currentCurrency,
send,
} = state.metamask
const accounts = state.metamask.accounts
const selectedAddress = state.metamask.selectedAddress || Object.keys(accounts)[0]
const { balance } = accounts[selectedAddress]
return {
conversionRate,
identities,
selectedAddress,
currentCurrency,
send,
balance,
}
}
function mapDispatchToProps (dispatch) {
return {
clearSend: () => dispatch(actions.clearSend()),
editTransaction: txMeta => {
const { id, txParams } = txMeta
const {
gas: gasLimit,
gasPrice,
to,
value: amount,
} = txParams
dispatch(actions.updateSend({
gasLimit,
gasPrice,
gasTotal: null,
to,
amount,
errors: { to: null, amount: null },
editingTransactionId: id,
}))
},
cancelTransaction: ({ id }) => dispatch(actions.cancelTx({ id })),
showCustomizeGasModal: (txMeta, sendGasLimit, sendGasPrice, sendGasTotal) => {
const { id, txParams, lastGasPrice } = txMeta
const { gas: txGasLimit, gasPrice: txGasPrice } = txParams
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,
forceGasMin,
}))
dispatch(actions.showModal({ name: 'CUSTOMIZE_GAS' }))
},
updateSendErrors: error => dispatch(actions.updateSendErrors(error)),
}
}
inherits(ConfirmSendEther, Component)
function ConfirmSendEther () {
Component.call(this)
this.state = {}
this.onSubmit = this.onSubmit.bind(this)
}
ConfirmSendEther.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'),
})
}
}
ConfirmSendEther.prototype.componentWillMount = function () {
this.updateComponentSendErrors({})
}
ConfirmSendEther.prototype.componentDidUpdate = function (prevProps) {
this.updateComponentSendErrors(prevProps)
}
ConfirmSendEther.prototype.getAmount = function () {
const { conversionRate, currentCurrency } = this.props
const txMeta = this.gatherTxMeta()
const txParams = txMeta.txParams || {}
const FIAT = conversionUtil(txParams.value, {
fromNumericBase: 'hex',
toNumericBase: 'dec',
fromCurrency: 'ETH',
toCurrency: currentCurrency,
numberOfDecimals: 2,
fromDenomination: 'WEI',
conversionRate,
})
const ETH = conversionUtil(txParams.value, {
fromNumericBase: 'hex',
toNumericBase: 'dec',
fromCurrency: 'ETH',
toCurrency: 'ETH',
fromDenomination: 'WEI',
conversionRate,
numberOfDecimals: 6,
})
return {
FIAT,
ETH,
}
}
ConfirmSendEther.prototype.getGasFee = function () {
const { conversionRate, currentCurrency } = this.props
const txMeta = this.gatherTxMeta()
const txParams = txMeta.txParams || {}
// Gas
const gas = txParams.gas
const gasBn = hexToBn(gas)
// From latest master
// const gasLimit = new BN(parseInt(blockGasLimit))
// const safeGasLimitBN = this.bnMultiplyByFraction(gasLimit, 19, 20)
// const saferGasLimitBN = this.bnMultiplyByFraction(gasLimit, 18, 20)
// const safeGasLimit = safeGasLimitBN.toString(10)
// Gas Price
const gasPrice = txParams.gasPrice || MIN_GAS_PRICE_HEX
const gasPriceBn = hexToBn(gasPrice)
const txFeeBn = gasBn.mul(gasPriceBn)
const FIAT = conversionUtil(txFeeBn, {
fromNumericBase: 'BN',
toNumericBase: 'dec',
fromDenomination: 'WEI',
fromCurrency: 'ETH',
toCurrency: currentCurrency,
numberOfDecimals: 2,
conversionRate,
})
const ETH = conversionUtil(txFeeBn, {
fromNumericBase: 'BN',
toNumericBase: 'dec',
fromDenomination: 'WEI',
fromCurrency: 'ETH',
toCurrency: 'ETH',
numberOfDecimals: 6,
conversionRate,
})
return {
FIAT,
ETH,
gasFeeInHex: txFeeBn.toString(16),
}
}
ConfirmSendEther.prototype.getData = function () {
const { identities } = this.props
const txMeta = this.gatherTxMeta()
const txParams = txMeta.txParams || {}
const account = identities ? identities[txParams.from] || {} : {}
const { FIAT: gasFeeInFIAT, ETH: gasFeeInETH, gasFeeInHex } = this.getGasFee()
const { FIAT: amountInFIAT, ETH: amountInETH } = this.getAmount()
const totalInFIAT = addCurrencies(gasFeeInFIAT, amountInFIAT, {
toNumericBase: 'dec',
numberOfDecimals: 2,
})
const totalInETH = addCurrencies(gasFeeInETH, amountInETH, {
toNumericBase: 'dec',
numberOfDecimals: 6,
})
return {
from: {
address: txParams.from,
name: account.name,
},
to: {
address: txParams.to,
name: identities[txParams.to] ? identities[txParams.to].name : this.context.t('newRecipient'),
},
memo: txParams.memo || '',
gasFeeInFIAT,
gasFeeInETH,
amountInFIAT,
amountInETH,
totalInFIAT,
totalInETH,
gasFeeInHex,
}
}
ConfirmSendEther.prototype.editTransaction = function (txMeta) {
const { editTransaction, history } = this.props
editTransaction(txMeta)
history.push(SEND_ROUTE)
}
ConfirmSendEther.prototype.render = function () {
const {
currentCurrency,
clearSend,
conversionRate,
currentCurrency: convertedCurrency,
showCustomizeGasModal,
send: {
gasTotal,
gasLimit: sendGasLimit,
gasPrice: sendGasPrice,
errors,
},
} = this.props
const txMeta = this.gatherTxMeta()
const txParams = txMeta.txParams || {}
const {
from: {
address: fromAddress,
name: fromName,
},
to: {
address: toAddress,
name: toName,
},
memo,
gasFeeInHex,
amountInFIAT,
totalInFIAT,
totalInETH,
} = this.getData()
const title = txMeta.lastGasPrice ? 'Reprice Transaction' : 'Confirm'
const subtitle = txMeta.lastGasPrice
? 'Increase your gas fee to attempt to overwrite and speed up your transaction'
: 'Please review your transaction.'
// This is from the latest master
// It handles some of the errors that we are not currently handling
// Leaving as comments fo reference
// const balanceBn = hexToBn(balance)
// const insufficientBalance = balanceBn.lt(maxCost)
// const buyDisabled = insufficientBalance || !this.state.valid || !isValidAddress || this.state.submitting
// const showRejectAll = props.unconfTxListLength > 1
// const dangerousGasLimit = gasBn.gte(saferGasLimitBN)
// const gasLimitSpecified = txMeta.gasLimitSpecified
this.inputs = []
return (
// Main Send token Card
h('.page-container', [
h('.page-container__header', [
h('.page-container__header-row', [
h('span.page-container__back-button', {
onClick: () => this.editTransaction(txMeta),
style: {
visibility: !txMeta.lastGasPrice ? 'initial' : 'hidden',
},
}, 'Edit'),
window.METAMASK_UI_TYPE === 'notification' && h(NetworkDisplay),
]),
h('.page-container__title', title),
h('.page-container__subtitle', subtitle),
]),
h('.page-container__content', [
h(SenderToRecipient, {
senderName: fromName,
senderAddress: fromAddress,
recipientName: toName,
recipientAddress: txParams.to,
}),
// h('h3.flex-center.confirm-screen-sending-to-message', {
// style: {
// textAlign: 'center',
// fontSize: '16px',
// },
// }, [
// `You're sending to Recipient ...${toAddress.slice(toAddress.length - 4)}`,
// ]),
h('h3.flex-center.confirm-screen-send-amount', [`${amountInFIAT}`]),
h('h3.flex-center.confirm-screen-send-amount-currency', [ currentCurrency.toUpperCase() ]),
h('div.flex-center.confirm-memo-wrapper', [
h('h3.confirm-screen-send-memo', [ memo ? `"${memo}"` : '' ]),
]),
h('div.confirm-screen-rows', [
h('section.flex-row.flex-center.confirm-screen-row', [
h('span.confirm-screen-label.confirm-screen-section-column', [ this.context.t('from') ]),
h('div.confirm-screen-section-column', [
h('div.confirm-screen-row-info', fromName),
h('div.confirm-screen-row-detail', `...${fromAddress.slice(fromAddress.length - 4)}`),
]),
]),
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', `...${toAddress.slice(toAddress.length - 4)}`),
]),
]),
h('section.flex-row.flex-center.confirm-screen-row', [
h('span.confirm-screen-label.confirm-screen-section-column', [ this.context.t('gasFee') ]),
h('div.confirm-screen-section-column', [
h(GasFeeDisplay, {
gasTotal: gasTotal || gasFeeInHex,
conversionRate,
convertedCurrency,
onClick: () => showCustomizeGasModal(txMeta, sendGasLimit, sendGasPrice, gasTotal),
}),
]),
]),
h('section.flex-row.flex-center.confirm-screen-row.confirm-screen-total-box ', [
h('div', {
className: classnames({
'confirm-screen-section-column--with-error': errors['insufficientFunds'],
'confirm-screen-section-column': !errors['insufficientFunds'],
}),
}, [
h('span.confirm-screen-label', [ this.context.t('total') + ' ' ]),
h('div.confirm-screen-total-box__subtitle', [ this.context.t('amountPlusGas') ]),
]),
h('div.confirm-screen-section-column', [
h('div.confirm-screen-row-info', `${totalInFIAT} ${currentCurrency.toUpperCase()}`),
h('div.confirm-screen-row-detail', `${totalInETH} ETH`),
]),
this.renderErrorMessage('insufficientFunds'),
]),
]),
// These are latest errors handling from master
// Leaving as comments as reference when we start implementing error handling
// h('style', `
// .conf-buttons button {
// margin-left: 10px;
// text-transform: uppercase;
// }
// `),
// txMeta.simulationFails ?
// h('.error', {
// style: {
// marginLeft: 50,
// fontSize: '0.9em',
// },
// }, 'Transaction Error. Exception thrown in contract code.')
// : null,
// !isValidAddress ?
// h('.error', {
// style: {
// marginLeft: 50,
// fontSize: '0.9em',
// },
// }, 'Recipient address is invalid. Sending this transaction will result in a loss of ETH.')
// : null,
// insufficientBalance ?
// h('span.error', {
// style: {
// marginLeft: 50,
// fontSize: '0.9em',
// },
// }, 'Insufficient balance for transaction')
// : null,
// // send + cancel
// h('.flex-row.flex-space-around.conf-buttons', {
// style: {
// display: 'flex',
// justifyContent: 'flex-end',
// margin: '14px 25px',
// },
// }, [
// h('button', {
// onClick: (event) => {
// this.resetGasFields()
// event.preventDefault()
// },
// }, 'Reset'),
// // Accept Button or Buy Button
// insufficientBalance ? h('button.btn-green', { onClick: props.buyEth }, 'Buy Ether') :
// h('input.confirm.btn-green', {
// type: 'submit',
// value: 'SUBMIT',
// style: { marginLeft: '10px' },
// disabled: buyDisabled,
// }),
// h('button.cancel.btn-red', {
// onClick: props.cancelTransaction,
// }, 'Reject'),
// ]),
// showRejectAll ? h('.flex-row.flex-space-around.conf-buttons', {
// style: {
// display: 'flex',
// justifyContent: 'flex-end',
// margin: '14px 25px',
// },
// }, [
// h('button.cancel.btn-red', {
// onClick: props.cancelAllTransactions,
// }, 'Reject All'),
// ]) : null,
// ]),
// ])
// )
// }
]),
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) => {
clearSend()
this.cancel(event, txMeta)
},
}, this.context.t('cancel')),
// Accept Button
h('button.btn-confirm.page-container__footer-button.allcaps', [this.context.t('confirm')]),
]),
]),
])
)
}
ConfirmSendEther.prototype.renderErrorMessage = function (message) {
const { send: { errors } } = this.props
return errors[message]
? h('div.confirm-screen-error', [ errors[message] ])
: null
}
ConfirmSendEther.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 })
}
}
ConfirmSendEther.prototype.cancel = function (event, txMeta) {
event.preventDefault()
const { cancelTransaction } = this.props
cancelTransaction(txMeta)
.then(() => this.props.history.push(DEFAULT_ROUTE))
}
ConfirmSendEther.prototype.isBalanceSufficient = function (txMeta) {
const {
balance,
conversionRate,
} = this.props
const {
txParams: {
gas,
gasPrice,
value: amount,
},
} = txMeta
const gasTotal = getGasTotal(gas, gasPrice)
return isBalanceSufficient({
amount,
gasTotal,
balance,
conversionRate,
})
}
ConfirmSendEther.prototype.checkValidity = function () {
const form = this.getFormEl()
const valid = form.checkValidity()
return valid
}
ConfirmSendEther.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,
ConfirmSendEther.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
}
ConfirmSendEther.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)
)
}
ConfirmSendEther.prototype._notZeroOrEmptyString = function (obj) {
return obj !== '' && obj !== '0x0'
}
ConfirmSendEther.prototype.bnMultiplyByFraction = function (targetBN, numerator, denominator) {
const numBN = new BN(numerator)
const denomBN = new BN(denominator)
return targetBN.mul(numBN).div(denomBN)
}