mirror of
https://github.com/kremalicious/metamask-extension.git
synced 2024-11-28 05:12:18 +01:00
395 lines
12 KiB
JavaScript
395 lines
12 KiB
JavaScript
const Component = require('react').Component
|
|
const { connect } = require('react-redux')
|
|
const h = require('react-hyperscript')
|
|
const inherits = require('util').inherits
|
|
const abi = require('human-standard-token-abi')
|
|
const abiDecoder = require('abi-decoder')
|
|
abiDecoder.addABI(abi)
|
|
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 } = require('../../conversion-util')
|
|
|
|
const MIN_GAS_PRICE_GWEI_BN = new BN(1)
|
|
const GWEI_FACTOR = new BN(1e9)
|
|
const MIN_GAS_PRICE_BN = MIN_GAS_PRICE_GWEI_BN.mul(GWEI_FACTOR)
|
|
|
|
module.exports = connect(mapStateToProps, mapDispatchToProps)(ConfirmSendToken)
|
|
|
|
function mapStateToProps (state, ownProps) {
|
|
const { token: { symbol }, txData } = ownProps
|
|
const { txParams } = txData || {}
|
|
const tokenData = txParams.data && abiDecoder.decodeMethod(txParams.data)
|
|
const {
|
|
conversionRate,
|
|
identities,
|
|
} = state.metamask
|
|
const accounts = state.metamask.accounts
|
|
const selectedAddress = state.metamask.selectedAddress || Object.keys(accounts)[0]
|
|
const tokenExchangeRates = state.metamask.tokenExchangeRates
|
|
const pair = `${symbol.toLowerCase()}_eth`
|
|
const { rate: tokenExchangeRate = 0 } = tokenExchangeRates[pair] || {}
|
|
|
|
return {
|
|
conversionRate,
|
|
identities,
|
|
selectedAddress,
|
|
tokenExchangeRate,
|
|
tokenData: tokenData || {},
|
|
}
|
|
}
|
|
|
|
function mapDispatchToProps (dispatch, ownProps) {
|
|
const { token: { symbol } } = ownProps
|
|
|
|
return {
|
|
backToAccountDetail: address => dispatch(actions.backToAccountDetail(address)),
|
|
cancelTransaction: ({ id }) => dispatch(actions.cancelTx({ id })),
|
|
updateTokenExchangeRate: () => dispatch(actions.updateTokenExchangeRate(symbol)),
|
|
}
|
|
}
|
|
|
|
inherits(ConfirmSendToken, Component)
|
|
function ConfirmSendToken () {
|
|
Component.call(this)
|
|
this.state = {}
|
|
this.onSubmit = this.onSubmit.bind(this)
|
|
}
|
|
|
|
ConfirmSendToken.prototype.componentWillMount = function () {
|
|
this.props.updateTokenExchangeRate()
|
|
}
|
|
|
|
ConfirmSendToken.prototype.getAmount = function () {
|
|
const { conversionRate, tokenExchangeRate, token, tokenData } = this.props
|
|
const { params = [] } = tokenData
|
|
const { value } = params[1] || {}
|
|
const { decimals } = token
|
|
const multiplier = Math.pow(10, Number(decimals || 0))
|
|
const sendTokenAmount = Number(value / multiplier)
|
|
|
|
return {
|
|
fiat: tokenExchangeRate
|
|
? +(sendTokenAmount * tokenExchangeRate * conversionRate).toFixed(2)
|
|
: null,
|
|
token: +sendTokenAmount.toFixed(decimals),
|
|
}
|
|
|
|
}
|
|
|
|
ConfirmSendToken.prototype.getGasFee = function () {
|
|
const { conversionRate, tokenExchangeRate, token } = this.props
|
|
const txMeta = this.gatherTxMeta()
|
|
const txParams = txMeta.txParams || {}
|
|
const { decimals } = token
|
|
|
|
// Gas
|
|
const gas = txParams.gas
|
|
const gasBn = hexToBn(gas)
|
|
|
|
// Gas Price
|
|
const gasPrice = txParams.gasPrice || MIN_GAS_PRICE_BN.toString(16)
|
|
const gasPriceBn = hexToBn(gasPrice)
|
|
const txFeeBn = gasBn.mul(gasPriceBn)
|
|
|
|
|
|
const USD = conversionUtil(txFeeBn, {
|
|
fromNumericBase: 'BN',
|
|
toNumericBase: 'dec',
|
|
fromDenomination: 'WEI',
|
|
fromCurrency: 'ETH',
|
|
toCurrency: 'USD',
|
|
numberOfDecimals: 2,
|
|
conversionRate,
|
|
})
|
|
const ETH = conversionUtil(txFeeBn, {
|
|
fromNumericBase: 'BN',
|
|
toNumericBase: 'dec',
|
|
fromDenomination: 'WEI',
|
|
fromCurrency: 'ETH',
|
|
toCurrency: 'ETH',
|
|
numberOfDecimals: 6,
|
|
conversionRate,
|
|
})
|
|
|
|
return {
|
|
fiat: +Number(USD).toFixed(2),
|
|
eth: ETH,
|
|
token: tokenExchangeRate
|
|
? +(ETH * tokenExchangeRate).toFixed(decimals)
|
|
: null,
|
|
}
|
|
}
|
|
|
|
ConfirmSendToken.prototype.getData = function () {
|
|
const { identities } = this.props
|
|
const txMeta = this.gatherTxMeta()
|
|
const txParams = txMeta.txParams || {}
|
|
|
|
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 || '',
|
|
}
|
|
}
|
|
|
|
ConfirmSendToken.prototype.renderHeroAmount = function () {
|
|
const { token: { symbol } } = this.props
|
|
const { fiat: fiatAmount, token: tokenAmount } = this.getAmount()
|
|
const txMeta = this.gatherTxMeta()
|
|
const txParams = txMeta.txParams || {}
|
|
const { memo = '' } = txParams
|
|
|
|
return fiatAmount
|
|
? (
|
|
h('div.confirm-send-token__hero-amount-wrapper', [
|
|
h('h3.flex-center.confirm-screen-send-amount', `$${fiatAmount}`),
|
|
h('h3.flex-center.confirm-screen-send-amount-currency', 'USD'),
|
|
h('div.flex-center.confirm-memo-wrapper', [
|
|
h('h3.confirm-screen-send-memo', memo),
|
|
]),
|
|
])
|
|
)
|
|
: (
|
|
h('div.confirm-send-token__hero-amount-wrapper', [
|
|
h('h3.flex-center.confirm-screen-send-amount', tokenAmount),
|
|
h('h3.flex-center.confirm-screen-send-amount-currency', symbol),
|
|
h('div.flex-center.confirm-memo-wrapper', [
|
|
h('h3.confirm-screen-send-memo', memo),
|
|
]),
|
|
])
|
|
)
|
|
}
|
|
|
|
ConfirmSendToken.prototype.renderGasFee = function () {
|
|
const { token: { symbol } } = this.props
|
|
const { fiat: fiatGas, token: tokenGas, eth: ethGas } = this.getGasFee()
|
|
|
|
return (
|
|
h('section.flex-row.flex-center.confirm-screen-row', [
|
|
h('span.confirm-screen-label.confirm-screen-section-column', [ 'Gas Fee' ]),
|
|
h('div.confirm-screen-section-column', [
|
|
h('div.confirm-screen-row-info', `$${fiatGas} USD`),
|
|
|
|
h(
|
|
'div.confirm-screen-row-detail',
|
|
tokenGas ? `${tokenGas} ${symbol}` : `${ethGas} ETH`
|
|
),
|
|
]),
|
|
])
|
|
)
|
|
}
|
|
|
|
ConfirmSendToken.prototype.renderTotalPlusGas = function () {
|
|
const { token: { symbol } } = this.props
|
|
const { fiat: fiatAmount, token: tokenAmount } = this.getAmount()
|
|
const { fiat: fiatGas, token: tokenGas } = this.getGasFee()
|
|
|
|
return fiatAmount && fiatGas
|
|
? (
|
|
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', `$${fiatAmount + fiatGas} USD`),
|
|
h('div.confirm-screen-row-detail', `${tokenAmount + tokenGas} ${symbol}`),
|
|
]),
|
|
])
|
|
)
|
|
: (
|
|
h('section.flex-row.flex-center.confirm-screen-total-box ', [
|
|
h('div.confirm-screen-section-column', [
|
|
h('span.confirm-screen-label', [ 'Total ' ]),
|
|
h('div.confirm-screen-total-box__subtitle', [ 'Amount + Gas' ]),
|
|
]),
|
|
|
|
h('div.confirm-screen-section-column', [
|
|
h('div.confirm-screen-row-info', `${tokenAmount} ${symbol}`),
|
|
h('div.confirm-screen-row-detail', `+ ${fiatGas} USD Gas`),
|
|
]),
|
|
])
|
|
)
|
|
}
|
|
|
|
ConfirmSendToken.prototype.render = function () {
|
|
const { backToAccountDetail, selectedAddress } = this.props
|
|
const txMeta = this.gatherTxMeta()
|
|
const txParams = txMeta.txParams || {}
|
|
|
|
const {
|
|
from: {
|
|
address: fromAddress,
|
|
name: fromName,
|
|
},
|
|
to: {
|
|
address: toAddress,
|
|
name: toName,
|
|
},
|
|
} = this.getData()
|
|
|
|
this.inputs = []
|
|
|
|
return (
|
|
h('div.flex-column.flex-grow.confirm-screen-container', {
|
|
style: { minWidth: '355px' },
|
|
}, [
|
|
// Main Send token Card
|
|
h('div.confirm-screen-wrapper.flex-column.flex-grow', [
|
|
h('h3.flex-center.confirm-screen-header', [
|
|
h('button.confirm-screen-back-button', {
|
|
onClick: () => backToAccountDetail(selectedAddress),
|
|
}, 'BACK'),
|
|
h('div.confirm-screen-title', 'Confirm Transaction'),
|
|
]),
|
|
h('div.flex-row.flex-center.confirm-screen-identicons', [
|
|
h('div.confirm-screen-account-wrapper', [
|
|
h(
|
|
Identicon,
|
|
{
|
|
address: fromAddress,
|
|
diameter: 100,
|
|
},
|
|
),
|
|
h('span.confirm-screen-account-name', fromName),
|
|
h('span.confirm-screen-account-number', fromAddress.slice(fromAddress.length - 4)),
|
|
]),
|
|
h('i.fa.fa-arrow-right.fa-lg'),
|
|
h('div.confirm-screen-account-wrapper', [
|
|
h(
|
|
Identicon,
|
|
{
|
|
address: txParams.to,
|
|
diameter: 100,
|
|
},
|
|
),
|
|
h('span.confirm-screen-account-name', toName),
|
|
h('span.confirm-screen-account-number', toAddress.slice(toAddress.length - 4)),
|
|
]),
|
|
]),
|
|
|
|
h('h3.flex-center.confirm-screen-sending-to-message', {
|
|
style: {
|
|
textAlign: 'center',
|
|
fontSize: '16px',
|
|
},
|
|
}, [
|
|
`You're sending to Recipient ...${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', [ '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)}`),
|
|
]),
|
|
]),
|
|
|
|
this.renderGasFee(),
|
|
|
|
this.renderTotalPlusGas(),
|
|
|
|
]),
|
|
]),
|
|
|
|
h('form#pending-tx-form.flex-column.flex-center', {
|
|
onSubmit: this.onSubmit,
|
|
}, [
|
|
|
|
// Accept Button
|
|
h('button.confirm-screen-confirm-button', ['CONFIRM']),
|
|
|
|
// Cancel Button
|
|
h('div.cancel.btn-light.confirm-screen-cancel-button', {
|
|
onClick: (event) => this.cancel(event, txMeta),
|
|
}, 'CANCEL'),
|
|
]),
|
|
])
|
|
)
|
|
}
|
|
|
|
ConfirmSendToken.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 })
|
|
}
|
|
}
|
|
|
|
ConfirmSendToken.prototype.cancel = function (event, txMeta) {
|
|
event.preventDefault()
|
|
this.props.cancelTransaction(txMeta)
|
|
}
|
|
|
|
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)
|
|
|
|
// 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)
|
|
}
|