A Metamask fork with Infura removed and default networks editable
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ciphermask/ui/app/components/pending-tx/confirm-send-ether.js

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const Component = require('react').Component
const { connect } = require('react-redux')
const h = require('react-hyperscript')
const inherits = require('util').inherits
const actions = require('../../actions')
const clone = require('clone')
const Identicon = require('../identicon')
const ethUtil = require('ethereumjs-util')
const BN = ethUtil.BN
const hexToBn = require('../../../../app/scripts/lib/hex-to-bn')
const { conversionUtil, addCurrencies } = require('../../conversion-util')
const { MIN_GAS_PRICE_HEX } = require('../send/send-constants')
module.exports = 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]
return {
conversionRate,
identities,
selectedAddress,
currentCurrency,
send,
}
}
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,
}))
dispatch(actions.showSendPage())
},
cancelTransaction: ({ id }) => dispatch(actions.cancelTx({ id })),
}
}
inherits(ConfirmSendEther, Component)
function ConfirmSendEther () {
Component.call(this)
this.state = {}
this.onSubmit = this.onSubmit.bind(this)
}
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,
}
}
ConfirmSendEther.prototype.getData = function () {
const { identities } = this.props
const txMeta = this.gatherTxMeta()
const txParams = txMeta.txParams || {}
const { FIAT: gasFeeInFIAT, ETH: gasFeeInETH } = 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: identities[txParams.from].name,
},
to: {
address: txParams.to,
name: identities[txParams.to] ? identities[txParams.to].name : 'New Recipient',
},
memo: txParams.memo || '',
gasFeeInFIAT,
gasFeeInETH,
amountInFIAT,
amountInETH,
totalInFIAT,
totalInETH,
}
}
ConfirmSendEther.prototype.render = function () {
const { editTransaction, currentCurrency, clearSend } = this.props
const txMeta = this.gatherTxMeta()
const txParams = txMeta.txParams || {}
const {
from: {
address: fromAddress,
name: fromName,
},
to: {
address: toAddress,
name: toName,
},
memo,
gasFeeInFIAT,
gasFeeInETH,
amountInFIAT,
totalInFIAT,
totalInETH,
} = this.getData()
// 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 (
h('div.confirm-screen-container.confirm-send-ether', [
// Main Send token Card
h('div.page-container', [
h('div.page-container__header', [
h('button.confirm-screen-back-button', {
onClick: () => editTransaction(txMeta),
}, 'Edit'),
h('div.page-container__title', 'Confirm'),
h('div.page-container__subtitle', `Please review your transaction.`),
]),
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: txParams.to,
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 ...${toAddress.slice(toAddress.length - 4)}`,
// ]),
h('h3.flex-center.confirm-screen-send-amount', [`${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 ? `"${memo}"` : '' ]),
]),
h('div.confirm-screen-rows', [
h('section.flex-row.flex-center.confirm-screen-row', [
h('span.confirm-screen-label.confirm-screen-section-column', [ 'From' ]),
h('div.confirm-screen-section-column', [
h('div.confirm-screen-row-info', fromName),
h('div.confirm-screen-row-detail', `...${fromAddress.slice(fromAddress.length - 4)}`),
]),
]),
h('section.flex-row.flex-center.confirm-screen-row', [
h('span.confirm-screen-label.confirm-screen-section-column', [ 'To' ]),
h('div.confirm-screen-section-column', [
h('div.confirm-screen-row-info', toName),
h('div.confirm-screen-row-detail', `...${toAddress.slice(toAddress.length - 4)}`),
]),
]),
h('section.flex-row.flex-center.confirm-screen-row', [
h('span.confirm-screen-label.confirm-screen-section-column', [ 'Gas Fee' ]),
h('div.confirm-screen-section-column', [
h('div.confirm-screen-row-info', `${gasFeeInFIAT} ${currentCurrency.toUpperCase()}`),
h('div.confirm-screen-row-detail', `${gasFeeInETH} ETH`),
]),
]),
h('section.flex-row.flex-center.confirm-screen-total-box ', [
h('div.confirm-screen-section-column', [
h('span.confirm-screen-label', [ 'Total ' ]),
h('div.confirm-screen-total-box__subtitle', [ 'Amount + Gas' ]),
]),
h('div.confirm-screen-section-column', [
h('div.confirm-screen-row-info', `${totalInFIAT} ${currentCurrency.toUpperCase()}`),
h('div.confirm-screen-row-detail', `${totalInETH} ETH`),
]),
]),
]),
// 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', {
onSubmit: this.onSubmit,
}, [
// Cancel Button
h('div.cancel.btn-light.confirm-screen-cancel-button', {
onClick: (event) => {
clearSend()
this.cancel(event, txMeta)
},
}, 'CANCEL'),
// Accept Button
h('button.confirm-screen-confirm-button', ['CONFIRM']),
]),
])
)
}
ConfirmSendEther.prototype.onSubmit = function (event) {
event.preventDefault()
const txMeta = this.gatherTxMeta()
const valid = this.checkValidity()
this.setState({ valid, submitting: true })
if (valid && this.verifyGasParams()) {
this.props.sendTransaction(txMeta, event)
} else {
this.props.dispatch(actions.displayWarning('Invalid Gas Parameters'))
this.setState({ submitting: false })
}
}
ConfirmSendEther.prototype.cancel = function (event, txMeta) {
event.preventDefault()
const { cancelTransaction } = this.props
cancelTransaction(txMeta)
}
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)
// 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)
}