mirror of
https://github.com/kremalicious/metamask-extension.git
synced 2024-12-23 09:52:26 +01:00
431 lines
11 KiB
JavaScript
431 lines
11 KiB
JavaScript
const async = require('async')
|
|
const EventEmitter = require('events').EventEmitter
|
|
const encryptor = require('./lib/encryptor')
|
|
const messageManager = require('./lib/message-manager')
|
|
const ethUtil = require('ethereumjs-util')
|
|
const ethBinToOps = require('eth-bin-to-ops')
|
|
const EthQuery = require('eth-query')
|
|
const BN = ethUtil.BN
|
|
const Transaction = require('ethereumjs-tx')
|
|
const createId = require('web3-provider-engine/util/random-id')
|
|
|
|
// Keyrings:
|
|
const SimpleKeyring = require('./keyrings/simple')
|
|
const keyringTypes = [
|
|
SimpleKeyring,
|
|
]
|
|
|
|
module.exports = class KeyringController extends EventEmitter {
|
|
|
|
constructor (opts) {
|
|
super()
|
|
this.web3 = opts.web3
|
|
this.configManager = opts.configManager
|
|
this.ethStore = opts.ethStore
|
|
this.encryptor = encryptor
|
|
this.keyringTypes = keyringTypes
|
|
|
|
this.keyrings = []
|
|
this.identities = {} // Essentially a name hash
|
|
|
|
this._unconfTxCbs = {}
|
|
this._unconfMsgCbs = {}
|
|
|
|
this.network = null
|
|
}
|
|
|
|
getState() {
|
|
return {
|
|
isInitialized: !!this.configManager.getVault(),
|
|
isUnlocked: !!this.key,
|
|
isConfirmed: true, // AUDIT this.configManager.getConfirmed(),
|
|
unconfTxs: this.configManager.unconfirmedTxs(),
|
|
transactions: this.configManager.getTxList(),
|
|
unconfMsgs: messageManager.unconfirmedMsgs(),
|
|
messages: messageManager.getMsgList(),
|
|
selectedAddress: this.configManager.getSelectedAccount(),
|
|
shapeShiftTxList: this.configManager.getShapeShiftTxList(),
|
|
currentFiat: this.configManager.getCurrentFiat(),
|
|
conversionRate: this.configManager.getConversionRate(),
|
|
conversionDate: this.configManager.getConversionDate(),
|
|
keyringTypes: this.keyringTypes.map((krt) => krt.type()),
|
|
identities: this.identities,
|
|
network: this.network,
|
|
}
|
|
}
|
|
|
|
setStore(ethStore) {
|
|
this.ethStore = ethStore
|
|
}
|
|
|
|
createNewVault(password, entropy, cb) {
|
|
const salt = this.encryptor.generateSalt()
|
|
this.configManager.setSalt(salt)
|
|
this.loadKey(password)
|
|
.then((key) => {
|
|
return this.encryptor.encryptWithKey(key, [])
|
|
})
|
|
.then((encryptedString) => {
|
|
this.configManager.setVault(encryptedString)
|
|
cb(null, this.getState())
|
|
})
|
|
.catch((err) => {
|
|
cb(err)
|
|
})
|
|
}
|
|
|
|
submitPassword(password, cb) {
|
|
this.loadKey(password)
|
|
.then((key) => {
|
|
return this.unlockKeyrings(key)
|
|
})
|
|
.then(() => {
|
|
cb(null, this.getState())
|
|
})
|
|
.catch((err) => {
|
|
cb(err)
|
|
})
|
|
}
|
|
|
|
loadKey(password) {
|
|
const salt = this.configManager.getSalt() || this.encryptor.generateSalt()
|
|
return this.encryptor.keyFromPassword(password + salt)
|
|
.then((key) => {
|
|
this.key = key
|
|
return key
|
|
})
|
|
}
|
|
|
|
addNewKeyring(type, opts, cb) {
|
|
const i = this.getAccounts().length
|
|
const Keyring = this.getKeyringClassForType(type)
|
|
const keyring = new Keyring(opts)
|
|
const accounts = keyring.addAccounts(1)
|
|
|
|
accounts.forEach((account) => {
|
|
this.loadBalanceAndNickname(account, i)
|
|
})
|
|
|
|
this.keyrings.push(keyring)
|
|
this.persistAllKeyrings()
|
|
.then(() => {
|
|
cb(this.getState())
|
|
})
|
|
.catch((reason) => {
|
|
cb(reason)
|
|
})
|
|
}
|
|
|
|
// Takes an account address and an iterator representing
|
|
// the current number of named accounts.
|
|
loadBalanceAndNickname(account, i) {
|
|
const address = ethUtil.addHexPrefix(account)
|
|
this.ethStore.addAccount(address)
|
|
const oldNickname = this.configManager.nicknameForWallet(address)
|
|
const name = oldNickname || `Account ${++i}`
|
|
this.identities[address] = {
|
|
address,
|
|
name,
|
|
}
|
|
this.saveAccountLabel(address, name)
|
|
}
|
|
|
|
saveAccountLabel (account, label, cb) {
|
|
const address = ethUtil.addHexPrefix(account)
|
|
const configManager = this.configManager
|
|
configManager.setNicknameForWallet(address, label)
|
|
if (cb) {
|
|
cb(null, label)
|
|
}
|
|
}
|
|
|
|
persistAllKeyrings() {
|
|
const serialized = this.keyrings.map((k) => {
|
|
return {
|
|
type: k.type,
|
|
// keyring.serialize() must return a JSON-encodable object.
|
|
data: k.serialize(),
|
|
}
|
|
})
|
|
return this.encryptor.encryptWithKey(this.key, serialized)
|
|
.then((encryptedString) => {
|
|
this.configManager.setVault(encryptedString)
|
|
return true
|
|
})
|
|
.catch((reason) => {
|
|
console.error('Failed to persist keyrings.', reason)
|
|
})
|
|
}
|
|
|
|
unlockKeyrings(key) {
|
|
const encryptedVault = this.configManager.getVault()
|
|
return this.encryptor.decryptWithKey(key, encryptedVault)
|
|
.then((vault) => {
|
|
this.keyrings = vault.map(this.restoreKeyring.bind(this, 0))
|
|
return this.keyrings
|
|
})
|
|
}
|
|
|
|
restoreKeyring(i, serialized) {
|
|
const { type, data } = serialized
|
|
const Keyring = this.getKeyringClassForType(type)
|
|
const keyring = new Keyring()
|
|
keyring.deserialize(data)
|
|
|
|
keyring.getAccounts().forEach((account) => {
|
|
this.loadBalanceAndNickname(account, i)
|
|
})
|
|
|
|
return keyring
|
|
}
|
|
|
|
getKeyringClassForType(type) {
|
|
const Keyring = this.keyringTypes.reduce((res, kr) => {
|
|
if (kr.type() === type) {
|
|
return kr
|
|
} else {
|
|
return res
|
|
}
|
|
})
|
|
return Keyring
|
|
}
|
|
|
|
getAccounts() {
|
|
const keyrings = this.keyrings || []
|
|
return keyrings.map(kr => kr.getAccounts())
|
|
.reduce((res, arr) => {
|
|
return res.concat(arr)
|
|
}, [])
|
|
}
|
|
|
|
setSelectedAddress(address, cb) {
|
|
this.configManager.setSelectedAccount(address)
|
|
cb(null, address)
|
|
}
|
|
|
|
addUnconfirmedTransaction(txParams, onTxDoneCb, cb) {
|
|
var self = this
|
|
const configManager = this.configManager
|
|
|
|
// create txData obj with parameters and meta data
|
|
var time = (new Date()).getTime()
|
|
var txId = createId()
|
|
txParams.metamaskId = txId
|
|
txParams.metamaskNetworkId = this.network
|
|
var txData = {
|
|
id: txId,
|
|
txParams: txParams,
|
|
time: time,
|
|
status: 'unconfirmed',
|
|
gasMultiplier: configManager.getGasMultiplier() || 1,
|
|
}
|
|
|
|
console.log('addUnconfirmedTransaction:', txData)
|
|
|
|
// keep the onTxDoneCb around for after approval/denial (requires user interaction)
|
|
// This onTxDoneCb fires completion to the Dapp's write operation.
|
|
this._unconfTxCbs[txId] = onTxDoneCb
|
|
|
|
var provider = this.ethStore._query.currentProvider
|
|
var query = new EthQuery(provider)
|
|
|
|
// calculate metadata for tx
|
|
async.parallel([
|
|
analyzeForDelegateCall,
|
|
estimateGas,
|
|
], didComplete)
|
|
|
|
// perform static analyis on the target contract code
|
|
function analyzeForDelegateCall(cb){
|
|
if (txParams.to) {
|
|
query.getCode(txParams.to, function (err, result) {
|
|
if (err) return cb(err)
|
|
var code = ethUtil.toBuffer(result)
|
|
if (code !== '0x') {
|
|
var ops = ethBinToOps(code)
|
|
var containsDelegateCall = ops.some((op) => op.name === 'DELEGATECALL')
|
|
txData.containsDelegateCall = containsDelegateCall
|
|
cb()
|
|
} else {
|
|
cb()
|
|
}
|
|
})
|
|
} else {
|
|
cb()
|
|
}
|
|
}
|
|
|
|
function estimateGas(cb){
|
|
query.estimateGas(txParams, function(err, result){
|
|
if (err) return cb(err)
|
|
txData.estimatedGas = self.addGasBuffer(result)
|
|
cb()
|
|
})
|
|
}
|
|
|
|
function didComplete (err) {
|
|
if (err) return cb(err)
|
|
configManager.addTx(txData)
|
|
// signal update
|
|
self.emit('update')
|
|
// signal completion of add tx
|
|
cb(null, txData)
|
|
}
|
|
}
|
|
|
|
addUnconfirmedMessage(msgParams, cb) {
|
|
// create txData obj with parameters and meta data
|
|
var time = (new Date()).getTime()
|
|
var msgId = createId()
|
|
var msgData = {
|
|
id: msgId,
|
|
msgParams: msgParams,
|
|
time: time,
|
|
status: 'unconfirmed',
|
|
}
|
|
messageManager.addMsg(msgData)
|
|
console.log('addUnconfirmedMessage:', msgData)
|
|
|
|
// keep the cb around for after approval (requires user interaction)
|
|
// This cb fires completion to the Dapp's write operation.
|
|
this._unconfMsgCbs[msgId] = cb
|
|
|
|
// signal update
|
|
this.emit('update')
|
|
return msgId
|
|
}
|
|
|
|
approveTransaction(txId, cb) {
|
|
const configManager = this.configManager
|
|
var approvalCb = this._unconfTxCbs[txId] || noop
|
|
|
|
// accept tx
|
|
cb()
|
|
approvalCb(null, true)
|
|
// clean up
|
|
configManager.confirmTx(txId)
|
|
delete this._unconfTxCbs[txId]
|
|
this.emit('update')
|
|
}
|
|
|
|
cancelTransaction(txId, cb) {
|
|
const configManager = this.configManager
|
|
var approvalCb = this._unconfTxCbs[txId] || noop
|
|
|
|
// reject tx
|
|
approvalCb(null, false)
|
|
// clean up
|
|
configManager.rejectTx(txId)
|
|
delete this._unconfTxCbs[txId]
|
|
|
|
if (cb && typeof cb === 'function') {
|
|
cb()
|
|
}
|
|
}
|
|
|
|
signTransaction(txParams, cb) {
|
|
try {
|
|
const address = ethUtil.addHexPrefix(txParams.from.toLowercase())
|
|
const keyring = this.getKeyringForAccount(address)
|
|
|
|
// Handle gas pricing
|
|
var gasMultiplier = this.configManager.getGasMultiplier() || 1
|
|
var gasPrice = new BN(ethUtil.stripHexPrefix(txParams.gasPrice), 16)
|
|
gasPrice = gasPrice.mul(new BN(gasMultiplier * 100, 10)).div(new BN(100, 10))
|
|
txParams.gasPrice = ethUtil.intToHex(gasPrice.toNumber())
|
|
|
|
// normalize values
|
|
txParams.to = ethUtil.addHexPrefix(txParams.to.toLowerCase())
|
|
txParams.from = ethUtil.addHexPrefix(txParams.from.toLowerCase())
|
|
txParams.value = ethUtil.addHexPrefix(txParams.value)
|
|
txParams.data = ethUtil.addHexPrefix(txParams.data)
|
|
txParams.gasLimit = ethUtil.addHexPrefix(txParams.gasLimit || txParams.gas)
|
|
txParams.nonce = ethUtil.addHexPrefix(txParams.nonce)
|
|
|
|
let tx = new Transaction(txParams)
|
|
tx = keyring.signTransaction(address, tx)
|
|
|
|
// Add the tx hash to the persisted meta-tx object
|
|
var txHash = ethUtil.bufferToHex(tx.hash())
|
|
var metaTx = this.configManager.getTx(txParams.metamaskId)
|
|
metaTx.hash = txHash
|
|
this.configManager.updateTx(metaTx)
|
|
|
|
// return raw serialized tx
|
|
var rawTx = ethUtil.bufferToHex(tx.serialize())
|
|
cb(null, rawTx)
|
|
} catch (e) {
|
|
cb(e)
|
|
}
|
|
}
|
|
|
|
signMessage(msgParams, cb) {
|
|
try {
|
|
const keyring = this.getKeyringForAccount(msgParams.from)
|
|
const address = ethUtil.addHexPrefix(msgParams.from.toLowercase())
|
|
const rawSig = keyring.signMessage(address, msgParams.data)
|
|
cb(null, rawSig)
|
|
} catch (e) {
|
|
cb(e)
|
|
}
|
|
}
|
|
|
|
getKeyringForAccount(address) {
|
|
const hexed = ethUtil.addHexPrefix(address.toLowerCase())
|
|
return this.keyrings.find((ring) => {
|
|
return ring.getAccounts()
|
|
.map(acct => ethUtil.addHexPrefix(acct.toLowerCase()))
|
|
.includes(hexed)
|
|
})
|
|
}
|
|
|
|
cancelMessage(msgId, cb) {
|
|
if (cb && typeof cb === 'function') {
|
|
cb()
|
|
}
|
|
}
|
|
|
|
setLocked(cb) {
|
|
this.key = null
|
|
this.keyrings = []
|
|
cb()
|
|
}
|
|
|
|
exportAccount(address, cb) {
|
|
cb(null, '0xPrivateKey')
|
|
}
|
|
|
|
tryPassword(password, cb) {
|
|
cb()
|
|
}
|
|
|
|
getNetwork(err) {
|
|
if (err) {
|
|
this.network = 'loading'
|
|
this.emit('update')
|
|
}
|
|
|
|
this.web3.version.getNetwork((err, network) => {
|
|
if (err) {
|
|
this.network = 'loading'
|
|
return this.emit('update')
|
|
}
|
|
if (global.METAMASK_DEBUG) {
|
|
console.log('web3.getNetwork returned ' + network)
|
|
}
|
|
this.network = network
|
|
this.emit('update')
|
|
})
|
|
}
|
|
|
|
addGasBuffer(gasHex) {
|
|
var gas = new BN(gasHex, 16)
|
|
var buffer = new BN('100000', 10)
|
|
var result = gas.add(buffer)
|
|
return ethUtil.addHexPrefix(result.toString(16))
|
|
}
|
|
|
|
}
|
|
|
|
function noop () {}
|