const Component = require('react').Component const { connect } = require('react-redux') const { withRouter } = require('react-router-dom') const { compose } = require('recompose') const h = require('react-hyperscript') const inherits = require('util').inherits const ethAbi = require('ethereumjs-abi') const tokenAbi = require('human-standard-token-abi') const abiDecoder = require('abi-decoder') abiDecoder.addABI(tokenAbi) const actions = require('../../actions') const clone = require('clone') const Identicon = require('../identicon') const ethUtil = require('ethereumjs-util') const BN = ethUtil.BN const { conversionUtil, multiplyCurrencies, addCurrencies, } = require('../../conversion-util') const { calcTokenAmount, } = require('../../token-util') const { MIN_GAS_PRICE_HEX } = require('../send/send-constants') const { getTokenExchangeRate, getSelectedAddress, getSelectedTokenContract, } = require('../../selectors') const { SEND_ROUTE, DEFAULT_ROUTE } = require('../../routes') module.exports = compose( withRouter, 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, currentCurrency, } = state.metamask const selectedAddress = getSelectedAddress(state) const tokenExchangeRate = getTokenExchangeRate(state, symbol) return { conversionRate, identities, selectedAddress, tokenExchangeRate, tokenData: tokenData || {}, currentCurrency: currentCurrency.toUpperCase(), send: state.metamask.send, tokenContract: getSelectedTokenContract(state), } } 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)), editTransaction: txMeta => { const { token: { address } } = ownProps const { txParams, id } = txMeta const tokenData = txParams.data && abiDecoder.decodeMethod(txParams.data) const { params = [] } = tokenData const { value: to } = params[0] || {} const { value: tokenAmountInDec } = params[1] || {} const tokenAmountInHex = conversionUtil(tokenAmountInDec, { fromNumericBase: 'dec', toNumericBase: 'hex', }) const { gas: gasLimit, gasPrice, } = txParams dispatch(actions.setSelectedToken(address)) dispatch(actions.updateSend({ gasLimit, gasPrice, gasTotal: null, to, amount: tokenAmountInHex, errors: { to: null, amount: null }, editingTransactionId: id, })) dispatch(actions.showSendTokenPage()) }, } } inherits(ConfirmSendToken, Component) function ConfirmSendToken () { Component.call(this) this.state = {} this.onSubmit = this.onSubmit.bind(this) } ConfirmSendToken.prototype.editTransaction = function (txMeta) { const { editTransaction, history } = this.props editTransaction(txMeta) history.push(SEND_ROUTE) } ConfirmSendToken.prototype.componentWillMount = function () { const { tokenContract, selectedAddress } = this.props tokenContract && tokenContract .balanceOf(selectedAddress) .then(usersToken => { }) this.props.updateTokenExchangeRate() } ConfirmSendToken.prototype.getAmount = function () { const { conversionRate, tokenExchangeRate, token, tokenData, send: { amount, editingTransactionId }, } = this.props const { params = [] } = tokenData let { value } = params[1] || {} const { decimals } = token if (editingTransactionId) { value = conversionUtil(amount, { fromNumericBase: 'hex', toNumericBase: 'dec', }) } const sendTokenAmount = calcTokenAmount(value, decimals) return { fiat: tokenExchangeRate ? +(sendTokenAmount * tokenExchangeRate * conversionRate).toFixed(2) : null, token: typeof value === 'undefined' ? 'Unknown' : +sendTokenAmount.toFixed(decimals), } } ConfirmSendToken.prototype.getGasFee = function () { const { conversionRate, tokenExchangeRate, token, currentCurrency } = this.props const txMeta = this.gatherTxMeta() const txParams = txMeta.txParams || {} const { decimals } = token const gas = txParams.gas const gasPrice = txParams.gasPrice || MIN_GAS_PRICE_HEX const gasTotal = multiplyCurrencies(gas, gasPrice, { multiplicandBase: 16, multiplierBase: 16, }) const FIAT = conversionUtil(gasTotal, { fromNumericBase: 'BN', toNumericBase: 'dec', fromDenomination: 'WEI', fromCurrency: 'ETH', toCurrency: currentCurrency, numberOfDecimals: 2, conversionRate, }) const ETH = conversionUtil(gasTotal, { fromNumericBase: 'BN', toNumericBase: 'dec', fromDenomination: 'WEI', fromCurrency: 'ETH', toCurrency: 'ETH', numberOfDecimals: 6, conversionRate, }) const tokenGas = multiplyCurrencies(gas, gasPrice, { toNumericBase: 'dec', multiplicandBase: 16, multiplierBase: 16, toCurrency: 'BAT', conversionRate: tokenExchangeRate, invertConversionRate: true, fromDenomination: 'WEI', numberOfDecimals: decimals || 4, }) return { fiat: +Number(FIAT).toFixed(2), eth: ETH, token: tokenExchangeRate ? tokenGas : null, } } ConfirmSendToken.prototype.getData = function () { const { identities, tokenData } = this.props const { params = [] } = tokenData const { value } = params[0] || {} const txMeta = this.gatherTxMeta() const txParams = txMeta.txParams || {} return { from: { address: txParams.from, name: identities[txParams.from].name, }, to: { address: value, name: identities[value] ? identities[value].name : 'New Recipient', }, memo: txParams.memo || '', } } ConfirmSendToken.prototype.renderHeroAmount = function () { const { token: { symbol }, currentCurrency } = 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', `${fiatAmount}`), h('h3.flex-center.confirm-screen-send-amount-currency', currentCurrency), h('div.flex-center.confirm-memo-wrapper', [ h('h3.confirm-screen-send-memo', [ memo ? `"${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 ? `"${memo}"` : '' ]), ]), ]) ) } ConfirmSendToken.prototype.renderGasFee = function () { const { token: { symbol }, currentCurrency } = this.props const { fiat: fiatGas, token: tokenGas, eth: ethGas } = this.getGasFee() return ( h('section.flex-row.flex-center.confirm-screen-row', [ h('span.confirm-screen-label.confirm-screen-section-column', [ 'Gas Fee' ]), h('div.confirm-screen-section-column', [ h('div.confirm-screen-row-info', `${fiatGas} ${currentCurrency}`), h( 'div.confirm-screen-row-detail', tokenGas ? `${tokenGas} ${symbol}` : `${ethGas} ETH` ), ]), ]) ) } ConfirmSendToken.prototype.renderTotalPlusGas = function () { const { token: { symbol }, currentCurrency } = 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', `${addCurrencies(fiatAmount, fiatGas)} ${currentCurrency}`), h('div.confirm-screen-row-detail', `${addCurrencies(tokenAmount, tokenGas || '0')} ${symbol}`), ]), ]) ) : ( h('section.flex-row.flex-center.confirm-screen-total-box ', [ h('div.confirm-screen-section-column', [ h('span.confirm-screen-label', [ 'Total ' ]), h('div.confirm-screen-total-box__subtitle', [ 'Amount + Gas' ]), ]), h('div.confirm-screen-section-column', [ h('div.confirm-screen-row-info', `${tokenAmount} ${symbol}`), h('div.confirm-screen-row-detail', `+ ${fiatGas} ${currentCurrency} Gas`), ]), ]) ) } ConfirmSendToken.prototype.render = function () { const txMeta = this.gatherTxMeta() const { from: { address: fromAddress, name: fromName, }, to: { address: toAddress, name: toName, }, } = this.getData() this.inputs = [] return ( h('div.confirm-screen-container.confirm-send-token', { style: { minWidth: '355px' }, }, [ // Main Send token Card h('div.confirm-screen-wrapper.flex-column.flex-grow', [ h('h3.flex-center.confirm-screen-header', [ h('button.confirm-screen-back-button', { onClick: () => this.editTransaction(txMeta), }, 'EDIT'), h('div.confirm-screen-title', 'Confirm Transaction'), h('div.confirm-screen-header-tip'), ]), h('div.flex-row.flex-center.confirm-screen-identicons', [ h('div.confirm-screen-account-wrapper', [ h( Identicon, { address: fromAddress, diameter: 60, }, ), h('span.confirm-screen-account-name', fromName), // h('span.confirm-screen-account-number', fromAddress.slice(fromAddress.length - 4)), ]), h('i.fa.fa-arrow-right.fa-lg'), h('div.confirm-screen-account-wrapper', [ h( Identicon, { address: toAddress, diameter: 60, }, ), h('span.confirm-screen-account-name', toName), // h('span.confirm-screen-account-number', toAddress.slice(toAddress.length - 4)), ]), ]), // h('h3.flex-center.confirm-screen-sending-to-message', { // style: { // textAlign: 'center', // fontSize: '16px', // }, // }, [ // `You're sending to Recipient ...${toAddress.slice(toAddress.length - 4)}`, // ]), 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', `...${fromAddress.slice(fromAddress.length - 4)}`), ]), ]), toAddress && h('section.flex-row.flex-center.confirm-screen-row', [ h('span.confirm-screen-label.confirm-screen-section-column', [ 'To' ]), h('div.confirm-screen-section-column', [ h('div.confirm-screen-row-info', toName), h('div.confirm-screen-row-detail', `...${toAddress.slice(toAddress.length - 4)}`), ]), ]), this.renderGasFee(), this.renderTotalPlusGas(), ]), ]), h('form#pending-tx-form', { onSubmit: this.onSubmit, }, [ // Cancel Button h('div.cancel.btn-light.confirm-screen-cancel-button', { onClick: (event) => this.cancel(event, txMeta), }, 'CANCEL'), // Accept Button h('button.confirm-screen-confirm-button', ['CONFIRM']), ]), ]) ) } 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) .then(() => this.props.history.push(DEFAULT_ROUTE)) } 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) if (props.send.editingTransactionId) { const { send: { memo, amount, gasLimit: gas, gasPrice, to, }, } = props const { txParams: { from, to: tokenAddress } } = txData const tokenParams = { from: ethUtil.addHexPrefix(from), value: '0', gas: ethUtil.addHexPrefix(gas), gasPrice: ethUtil.addHexPrefix(gasPrice), } const data = '0xa9059cbb' + Array.prototype.map.call( ethAbi.rawEncode(['address', 'uint256'], [to, ethUtil.addHexPrefix(amount)]), x => ('00' + x.toString(16)).slice(-2) ).join('') txData.txParams = { ...tokenParams, to: ethUtil.addHexPrefix(tokenAddress), memo: memo && ethUtil.addHexPrefix(memo), data, } } // 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) }