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_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)(ConfirmSendEther) function mapStateToProps (state) { const { conversionRate, identities, } = state.metamask const accounts = state.metamask.accounts const selectedAddress = state.metamask.selectedAddress || Object.keys(accounts)[0] return { conversionRate, identities, selectedAddress, } } function mapDispatchToProps (dispatch) { return { setCurrentCurrencyToUSD: () => dispatch(actions.setCurrentCurrency('USD')), backToAccountDetail: address => dispatch(actions.backToAccountDetail(address)), 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 } = this.props const txMeta = this.gatherTxMeta() const txParams = txMeta.txParams || {} console.log(txParams) const USD = conversionUtil(txParams.value, { fromNumericBase: 'hex', toNumericBase: 'dec', fromCurrency: 'ETH', toCurrency: 'USD', numberOfDecimals: 2, fromDenomination: 'WEI', conversionRate, }) const ETH = conversionUtil(txParams.value, { fromNumericBase: 'hex', toNumericBase: 'dec', fromCurrency: 'ETH', toCurrency: 'ETH', fromDenomination: 'WEI', conversionRate, numberOfDecimals: 6, }) return { USD, ETH, } } ConfirmSendEther.prototype.getGasFee = function () { const { conversionRate } = 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_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 { USD, ETH, } } ConfirmSendEther.prototype.getData = function () { const { identities } = this.props const txMeta = this.gatherTxMeta() const txParams = txMeta.txParams || {} const { USD: gasFeeInUSD, ETH: gasFeeInETH } = this.getGasFee() const { USD: amountInUSD, ETH: amountInETH } = this.getAmount() const totalInUSD = addCurrencies(gasFeeInUSD, amountInUSD, { 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 || '', gasFeeInUSD, gasFeeInETH, amountInUSD, amountInETH, totalInUSD, totalInETH, } } ConfirmSendEther.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, }, memo, gasFeeInUSD, gasFeeInETH, amountInUSD, totalInUSD, 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.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)}`, ]), h('h3.flex-center.confirm-screen-send-amount', [`$${amountInUSD}`]), h('h3.flex-center.confirm-screen-send-amount-currency', [ 'USD' ]), h('div.flex-center.confirm-memo-wrapper', [ h('h3.confirm-screen-send-memo', [ memo ]), ]), h('div.confirm-screen-rows', [ h('section.flex-row.flex-center.confirm-screen-row', [ h('span.confirm-screen-label.confirm-screen-section-column', [ 'From' ]), h('div.confirm-screen-section-column', [ h('div.confirm-screen-row-info', fromName), h('div.confirm-screen-row-detail', `...${fromAddress.slice(fromAddress.length - 4)}`), ]), ]), h('section.flex-row.flex-center.confirm-screen-row', [ h('span.confirm-screen-label.confirm-screen-section-column', [ 'To' ]), h('div.confirm-screen-section-column', [ h('div.confirm-screen-row-info', toName), h('div.confirm-screen-row-detail', `...${toAddress.slice(toAddress.length - 4)}`), ]), ]), h('section.flex-row.flex-center.confirm-screen-row', [ h('span.confirm-screen-label.confirm-screen-section-column', [ 'Gas Fee' ]), h('div.confirm-screen-section-column', [ h('div.confirm-screen-row-info', `$${gasFeeInUSD} USD`), 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', `$${totalInUSD} USD`), 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.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'), ]), ]) ) } 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() 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) }