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remix-project/src/universal-dapp.js

392 lines
14 KiB

/* global */
'use strict'
var yo = require('yo-yo')
var async = require('async')
var ethJSUtil = require('ethereumjs-util')
var BN = ethJSUtil.BN
var remixLib = require('remix-lib')
var EventManager = remixLib.EventManager
var crypto = require('crypto')
var TxRunner = remixLib.execution.txRunner
var txExecution = remixLib.execution.txExecution
var txFormat = remixLib.execution.txFormat
var txHelper = remixLib.execution.txHelper
var executionContext = require('./execution-context')
var modalCustom = require('./app/ui/modal-dialog-custom')
var uiUtil = require('./app/ui/util')
var modalDialog = require('./app/ui/modaldialog')
var typeConversion = remixLib.execution.typeConversion
var confirmDialog = require('./app/execution/confirmDialog')
/*
trigger debugRequested
*/
function UniversalDApp (opts = {}) {
this.event = new EventManager()
var self = this
self._api = opts.api
self.removable = opts.opt.removable
self.removable_instances = opts.opt.removable_instances
executionContext.event.register('contextChanged', this, function (context) {
self.reset(self.contracts)
})
self.txRunner = new TxRunner({}, opts.api)
}
UniversalDApp.prototype.reset = function (contracts, transactionContextAPI) {
this.contracts = contracts
if (transactionContextAPI) {
this.transactionContextAPI = transactionContextAPI
}
this.accounts = {}
if (executionContext.isVM()) {
this._addAccount('3cd7232cd6f3fc66a57a6bedc1a8ed6c228fff0a327e169c2bcc5e869ed49511', '0x56BC75E2D63100000')
this._addAccount('2ac6c190b09897cd8987869cc7b918cfea07ee82038d492abce033c75c1b1d0c', '0x56BC75E2D63100000')
this._addAccount('dae9801649ba2d95a21e688b56f77905e5667c44ce868ec83f82e838712a2c7a', '0x56BC75E2D63100000')
this._addAccount('d74aa6d18aa79a05f3473dd030a97d3305737cbc8337d940344345c1f6b72eea', '0x56BC75E2D63100000')
this._addAccount('71975fbf7fe448e004ac7ae54cad0a383c3906055a65468714156a07385e96ce', '0x56BC75E2D63100000')
executionContext.vm().stateManager.cache.flush(function () {})
}
this.txRunner = new TxRunner(this.accounts, this._api)
this.txRunner.event.register('transactionBroadcasted', (txhash) => {
this._api.detectNetwork((error, network) => {
if (!error && network) {
var txLink = executionContext.txDetailsLink(network.name, txhash)
if (txLink) this._api.logHtmlMessage(yo`<a href="${txLink}" target="_blank">${txLink}</a>`)
}
})
})
}
UniversalDApp.prototype.newAccount = function (password, cb) {
if (!executionContext.isVM()) {
if (!this._api.personalMode()) {
return cb('Not running in personal mode')
}
modalCustom.promptPassphraseCreation((error, passphrase) => {
if (error) {
modalCustom.alert(error)
} else {
executionContext.web3().personal.newAccount(passphrase, cb)
}
}, () => {})
} else {
var privateKey
do {
privateKey = crypto.randomBytes(32)
} while (!ethJSUtil.isValidPrivate(privateKey))
this._addAccount(privateKey, '0x56BC75E2D63100000')
cb(null, '0x' + ethJSUtil.privateToAddress(privateKey).toString('hex'))
}
}
UniversalDApp.prototype._addAccount = function (privateKey, balance) {
var self = this
if (!executionContext.isVM()) {
throw new Error('_addAccount() cannot be called in non-VM mode')
}
if (self.accounts) {
privateKey = new Buffer(privateKey, 'hex')
var address = ethJSUtil.privateToAddress(privateKey)
// FIXME: we don't care about the callback, but we should still make this proper
executionContext.vm().stateManager.putAccountBalance(address, balance || '0xf00000000000000001', function cb () {})
self.accounts['0x' + address.toString('hex')] = { privateKey: privateKey, nonce: 0 }
}
}
UniversalDApp.prototype.getAccounts = function (cb) {
var self = this
if (!executionContext.isVM()) {
// Weirdness of web3: listAccounts() is sync, `getListAccounts()` is async
// See: https://github.com/ethereum/web3.js/issues/442
if (this._api.personalMode()) {
executionContext.web3().personal.getListAccounts(cb)
} else {
executionContext.web3().eth.getAccounts(cb)
}
} else {
if (!self.accounts) {
return cb('No accounts?')
}
cb(null, Object.keys(self.accounts))
}
}
UniversalDApp.prototype.getBalance = function (address, cb) {
var self = this
address = ethJSUtil.stripHexPrefix(address)
if (!executionContext.isVM()) {
executionContext.web3().eth.getBalance(address, function (err, res) {
if (err) {
cb(err)
} else {
cb(null, res.toString(10))
}
})
} else {
if (!self.accounts) {
return cb('No accounts?')
}
executionContext.vm().stateManager.getAccountBalance(new Buffer(address, 'hex'), function (err, res) {
if (err) {
cb('Account not found')
} else {
cb(null, new BN(res).toString(10))
}
})
}
}
UniversalDApp.prototype.pendingTransactions = function () {
return this.txRunner.pendingTxs
}
UniversalDApp.prototype.call = function (isUserAction, args, value, lookupOnly, outputCb) {
const self = this
var logMsg
if (isUserAction) {
if (!args.funABI.constant) {
logMsg = `transact to ${args.contractName}.${(args.funABI.name) ? args.funABI.name : '(fallback)'}`
} else {
logMsg = `call to ${args.contractName}.${(args.funABI.name) ? args.funABI.name : '(fallback)'}`
}
}
txFormat.buildData(args.contractName, args.contractAbi, self.contracts, false, args.funABI, value, (error, data) => {
if (!error) {
if (isUserAction) {
if (!args.funABI.constant) {
self._api.logMessage(`${logMsg} pending ... `)
} else {
self._api.logMessage(`${logMsg}`)
}
}
self.callFunction(args.address, data, args.funABI, (error, txResult) => {
if (!error) {
var isVM = executionContext.isVM()
if (isVM) {
var vmError = txExecution.checkVMError(txResult)
if (vmError.error) {
self._api.logMessage(`${logMsg} errored: ${vmError.message} `)
return
}
}
if (lookupOnly) {
var decoded = uiUtil.decodeResponseToTreeView(executionContext.isVM() ? txResult.result.vm.return : ethJSUtil.toBuffer(txResult.result), args.funABI)
outputCb(decoded)
}
} else {
self._api.logMessage(`${logMsg} errored: ${error} `)
}
})
} else {
self._api.logMessage(`${logMsg} errored: ${error} `)
}
}, (msg) => {
self._api.logMessage(msg)
}, (data, runTxCallback) => {
// called for libraries deployment
self.runTx(data, runTxCallback)
})
}
/**
* deploy the given contract
*
* @param {String} data - data to send with the transaction ( return of txFormat.buildData(...) ).
* @param {Function} callback - callback.
*/
UniversalDApp.prototype.createContract = function (data, callback) {
this.runTx({data: data, useCall: false}, (error, txResult) => {
// see universaldapp.js line 660 => 700 to check possible values of txResult (error case)
callback(error, txResult)
})
}
/**
* call the current given contract
*
* @param {String} to - address of the contract to call.
* @param {String} data - data to send with the transaction ( return of txFormat.buildData(...) ).
* @param {Object} funAbi - abi definition of the function to call.
* @param {Function} callback - callback.
*/
UniversalDApp.prototype.callFunction = function (to, data, funAbi, callback) {
this.runTx({to: to, data: data, useCall: funAbi.constant}, (error, txResult) => {
// see universaldapp.js line 660 => 700 to check possible values of txResult (error case)
callback(error, txResult)
})
}
UniversalDApp.prototype.context = function () {
return (executionContext.isVM() ? 'memory' : 'blockchain')
}
UniversalDApp.prototype.getABI = function (contract) {
return txHelper.sortAbiFunction(contract.abi)
}
UniversalDApp.prototype.getFallbackInterface = function (contractABI) {
return txHelper.getFallbackInterface(contractABI)
}
UniversalDApp.prototype.getInputs = function (funABI) {
if (!funABI.inputs) {
return ''
}
return txHelper.inputParametersDeclarationToString(funABI.inputs)
}
UniversalDApp.prototype.runTx = function (args, cb) {
const self = this
async.waterfall([
function getGasLimit (next) {
if (self.transactionContextAPI.getGasLimit) {
return self.transactionContextAPI.getGasLimit(next)
}
next(null, 3000000)
},
function queryValue (gasLimit, next) {
if (args.value) {
return next(null, args.value, gasLimit)
}
if (args.useCall || !self.transactionContextAPI.getValue) {
return next(null, 0, gasLimit)
}
self.transactionContextAPI.getValue(function (err, value) {
next(err, value, gasLimit)
})
},
function getAccount (value, gasLimit, next) {
if (args.from) {
return next(null, args.from, value, gasLimit)
}
if (self.transactionContextAPI.getAddress) {
return self.transactionContextAPI.getAddress(function (err, address) {
next(err, address, value, gasLimit)
})
}
self.getAccounts(function (err, accounts) {
let address = accounts[0]
if (err) return next(err)
if (!address) return next('No accounts available')
if (executionContext.isVM() && !self.accounts[address]) {
return next('Invalid account selected')
}
next(null, address, value, gasLimit)
})
},
function runTransaction (fromAddress, value, gasLimit, next) {
var tx = { to: args.to, data: args.data.dataHex, useCall: args.useCall, from: fromAddress, value: value, gasLimit: gasLimit }
var payLoad = { funAbi: args.data.funAbi, funArgs: args.data.funArgs, contractBytecode: args.data.contractBytecode, contractName: args.data.contractName }
var timestamp = Date.now()
self.event.trigger('initiatingTransaction', [timestamp, tx, payLoad])
self.txRunner.rawRun(tx,
(network, tx, gasEstimation, continueTxExecution, cancelCb) => {
if (network.name !== 'Main') {
return continueTxExecution(null)
}
var amount = executionContext.web3().fromWei(typeConversion.toInt(tx.value), 'ether')
var content = confirmDialog(tx, amount, gasEstimation, self,
(gasPrice, cb) => {
let txFeeText, priceStatus
// TODO: this try catch feels like an anti pattern, can/should be
// removed, but for now keeping the original logic
try {
var fee = executionContext.web3().toBigNumber(tx.gas).mul(executionContext.web3().toBigNumber(executionContext.web3().toWei(gasPrice.toString(10), 'gwei')))
txFeeText = ' ' + executionContext.web3().fromWei(fee.toString(10), 'ether') + ' Ether'
priceStatus = true
} catch (e) {
txFeeText = ' Please fix this issue before sending any transaction. ' + e.message
priceStatus = false
}
cb(txFeeText, priceStatus)
},
(cb) => {
executionContext.web3().eth.getGasPrice((error, gasPrice) => {
var warnMessage = ' Please fix this issue before sending any transaction. '
if (error) {
return cb('Unable to retrieve the current network gas price.' + warnMessage + error)
}
try {
var gasPriceValue = executionContext.web3().fromWei(gasPrice.toString(10), 'gwei')
cb(null, gasPriceValue)
} catch (e) {
cb(warnMessage + e.message, null, false)
}
})
}
)
modalDialog('Confirm transaction', content,
{ label: 'Confirm',
fn: () => {
self._api.config.setUnpersistedProperty('doNotShowTransactionConfirmationAgain', content.querySelector('input#confirmsetting').checked)
// TODO: check if this is check is still valid given the refactor
if (!content.gasPriceStatus) {
cancelCb('Given gas price is not correct')
} else {
var gasPrice = executionContext.web3().toWei(content.querySelector('#gasprice').value, 'gwei')
continueTxExecution(gasPrice)
}
}}, {
label: 'Cancel',
fn: () => {
return cancelCb('Transaction canceled by user.')
}
})
},
(error, continueTxExecution, cancelCb) => {
if (error) {
var msg = typeof error !== 'string' ? error.message : error
modalDialog('Gas estimation failed', yo`<div>Gas estimation errored with the following message (see below).
The transaction execution will likely fail. Do you want to force sending? <br>
${msg}
</div>`,
{
label: 'Send Transaction',
fn: () => {
continueTxExecution()
}}, {
label: 'Cancel Transaction',
fn: () => {
cancelCb()
}
})
} else {
continueTxExecution()
}
},
function (okCb, cancelCb) {
modalCustom.promptPassphrase(null, 'Personal mode is enabled. Please provide passphrase of account ' + tx.from, '', okCb, cancelCb)
},
function (error, result) {
let eventName = (tx.useCall ? 'callExecuted' : 'transactionExecuted')
self.event.trigger(eventName, [error, tx.from, tx.to, tx.data, tx.useCall, result, timestamp, payLoad])
if (error && (typeof (error) !== 'string')) {
if (error.message) error = error.message
else {
try { error = 'error: ' + JSON.stringify(error) } catch (e) {}
}
}
next(error, result)
}
)
}
], cb)
}
module.exports = UniversalDApp