const Component = require('react').Component 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') ConfirmSendEther.contextTypes = { t: PropTypes.func, } 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] 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, })) dispatch(actions.showSendPage()) }, 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.componentWillMount = function () { const { updateSendErrors } = this.props const txMeta = this.gatherTxMeta() const balanceIsSufficient = this.isBalanceSufficient(txMeta) updateSendErrors({ insufficientFunds: balanceIsSufficient ? false : this.context.t('insufficientFunds'), }) } 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 { 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: identities[txParams.from].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.render = function () { const { editTransaction, 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: () => 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', { onSubmit: this.onSubmit, }, [ 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) } 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) }