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mirror of https://github.com/kremalicious/metamask-extension.git synced 2024-11-26 12:29:06 +01:00
metamask-extension/app/scripts/metamask-controller.js
Mark Stacey f763979bed
Add support for one-click onboarding (#7017)
* Add support for one-click onboarding

MetaMask now allows sites to register as onboarding the user, so that
the user is redirected back to the initiating site after onboarding.
This is accomplished through the use of the `metamask-onboarding`
library and the MetaMask forwarder.

At the end of onboarding, a 'snackbar'-stype component will explain to the
user they are about to be moved back to the originating dapp, and it will
show the origin of that dapp. This is intended to help prevent phishing
attempts, as it highlights that a redirect is taking place to an untrusted
third party.

If the onboarding initiator tab is closed when onboarding is finished,
the user is redirected to the onboarding originator as a fallback.

Closes #6161

* Add onboarding button to contract test dapp

The `contract-test` dapp (run with `yarn dapp`, used in e2e tests) now
uses a `Connect` button instead of connecting automatically. This
button also serves as an onboarding button when a MetaMask installation
is not detected.

* Add new static server for test dapp

The `static-server` library we were using for the `contract-test` dapp
didn't allow referencing files outside the server root. This should
have been possible to work around using symlinks, but there was a bug
that resulted in symlinks crashing the server.

Instead it has been replaced with a simple static file server that
will serve paths starting with `node_modules` from the project root.
This will be useful in testing the onboarding library without vendoring
it.

* Add `@metamask/onboarding` and `@metamask/forwarder`

Both libraries used to test onboarding are now included as dev
dependencies, to help with testing. A few convenience scripts
were added to help with this (`yarn forwarder` and `yarn dapp-forwarder`)
2019-11-22 13:03:51 -04:00

1938 lines
68 KiB
JavaScript

/**
* @file The central metamask controller. Aggregates other controllers and exports an api.
* @copyright Copyright (c) 2018 MetaMask
* @license MIT
*/
const assert = require('assert').strict
const EventEmitter = require('events')
const pump = require('pump')
const Dnode = require('dnode')
const pify = require('pify')
const extension = require('extensionizer')
const ObservableStore = require('obs-store')
const ComposableObservableStore = require('./lib/ComposableObservableStore')
const createDnodeRemoteGetter = require('./lib/createDnodeRemoteGetter')
const asStream = require('obs-store/lib/asStream')
const AccountTracker = require('./lib/account-tracker')
const RpcEngine = require('json-rpc-engine')
const debounce = require('debounce')
const createEngineStream = require('json-rpc-middleware-stream/engineStream')
const createFilterMiddleware = require('eth-json-rpc-filters')
const createSubscriptionManager = require('eth-json-rpc-filters/subscriptionManager')
const createOriginMiddleware = require('./lib/createOriginMiddleware')
const createLoggerMiddleware = require('./lib/createLoggerMiddleware')
const providerAsMiddleware = require('eth-json-rpc-middleware/providerAsMiddleware')
const {setupMultiplex} = require('./lib/stream-utils.js')
const KeyringController = require('eth-keyring-controller')
const EnsController = require('./controllers/ens')
const NetworkController = require('./controllers/network')
const PreferencesController = require('./controllers/preferences')
const AppStateController = require('./controllers/app-state')
const InfuraController = require('./controllers/infura')
const CachedBalancesController = require('./controllers/cached-balances')
const OnboardingController = require('./controllers/onboarding')
const ThreeBoxController = require('./controllers/threebox')
const RecentBlocksController = require('./controllers/recent-blocks')
const IncomingTransactionsController = require('./controllers/incoming-transactions')
const MessageManager = require('./lib/message-manager')
const PersonalMessageManager = require('./lib/personal-message-manager')
const TypedMessageManager = require('./lib/typed-message-manager')
const TransactionController = require('./controllers/transactions')
const TokenRatesController = require('./controllers/token-rates')
const DetectTokensController = require('./controllers/detect-tokens')
const ProviderApprovalController = require('./controllers/provider-approval')
const ABTestController = require('./controllers/ab-test')
const nodeify = require('./lib/nodeify')
const accountImporter = require('./account-import-strategies')
const getBuyEthUrl = require('./lib/buy-eth-url')
const selectChainId = require('./lib/select-chain-id')
const {Mutex} = require('await-semaphore')
const {version} = require('../manifest.json')
const {BN} = require('ethereumjs-util')
const GWEI_BN = new BN('1000000000')
const percentile = require('percentile')
const seedPhraseVerifier = require('./lib/seed-phrase-verifier')
const log = require('loglevel')
const TrezorKeyring = require('eth-trezor-keyring')
const LedgerBridgeKeyring = require('eth-ledger-bridge-keyring')
const EthQuery = require('eth-query')
const ethUtil = require('ethereumjs-util')
const contractMap = require('eth-contract-metadata')
const {
AddressBookController,
CurrencyRateController,
ShapeShiftController,
PhishingController,
} = require('gaba')
const backEndMetaMetricsEvent = require('./lib/backend-metametrics')
module.exports = class MetamaskController extends EventEmitter {
/**
* @constructor
* @param {Object} opts
*/
constructor (opts) {
super()
this.defaultMaxListeners = 20
this.sendUpdate = debounce(this.privateSendUpdate.bind(this), 200)
this.opts = opts
const initState = opts.initState || {}
this.recordFirstTimeInfo(initState)
// this keeps track of how many "controllerStream" connections are open
// the only thing that uses controller connections are open metamask UI instances
this.activeControllerConnections = 0
// platform-specific api
this.platform = opts.platform
// observable state store
this.store = new ComposableObservableStore(initState)
// lock to ensure only one vault created at once
this.createVaultMutex = new Mutex()
// network store
this.networkController = new NetworkController(initState.NetworkController)
// preferences controller
this.preferencesController = new PreferencesController({
initState: initState.PreferencesController,
initLangCode: opts.initLangCode,
openPopup: opts.openPopup,
network: this.networkController,
})
// app-state controller
this.appStateController = new AppStateController({
preferencesStore: this.preferencesController.store,
onInactiveTimeout: () => this.setLocked(),
})
// currency controller
this.currencyRateController = new CurrencyRateController(undefined, initState.CurrencyController)
// infura controller
this.infuraController = new InfuraController({
initState: initState.InfuraController,
})
this.infuraController.scheduleInfuraNetworkCheck()
this.phishingController = new PhishingController()
// rpc provider
this.initializeProvider()
this.provider = this.networkController.getProviderAndBlockTracker().provider
this.blockTracker = this.networkController.getProviderAndBlockTracker().blockTracker
// token exchange rate tracker
this.tokenRatesController = new TokenRatesController({
currency: this.currencyRateController,
preferences: this.preferencesController.store,
})
this.recentBlocksController = new RecentBlocksController({
blockTracker: this.blockTracker,
provider: this.provider,
networkController: this.networkController,
})
this.ensController = new EnsController({
provider: this.provider,
networkStore: this.networkController.networkStore,
})
this.incomingTransactionsController = new IncomingTransactionsController({
blockTracker: this.blockTracker,
networkController: this.networkController,
preferencesController: this.preferencesController,
initState: initState.IncomingTransactionsController,
})
// account tracker watches balances, nonces, and any code at their address.
this.accountTracker = new AccountTracker({
provider: this.provider,
blockTracker: this.blockTracker,
network: this.networkController,
})
// start and stop polling for balances based on activeControllerConnections
this.on('controllerConnectionChanged', (activeControllerConnections) => {
if (activeControllerConnections > 0) {
this.accountTracker.start()
this.incomingTransactionsController.start()
} else {
this.accountTracker.stop()
this.incomingTransactionsController.stop()
}
})
this.cachedBalancesController = new CachedBalancesController({
accountTracker: this.accountTracker,
getNetwork: this.networkController.getNetworkState.bind(this.networkController),
initState: initState.CachedBalancesController,
})
this.onboardingController = new OnboardingController({
initState: initState.OnboardingController,
preferencesController: this.preferencesController,
})
// ensure accountTracker updates balances after network change
this.networkController.on('networkDidChange', () => {
this.accountTracker._updateAccounts()
})
// key mgmt
const additionalKeyrings = [TrezorKeyring, LedgerBridgeKeyring]
this.keyringController = new KeyringController({
keyringTypes: additionalKeyrings,
initState: initState.KeyringController,
getNetwork: this.networkController.getNetworkState.bind(this.networkController),
encryptor: opts.encryptor || undefined,
})
this.keyringController.memStore.subscribe((s) => this._onKeyringControllerUpdate(s))
// detect tokens controller
this.detectTokensController = new DetectTokensController({
preferences: this.preferencesController,
network: this.networkController,
keyringMemStore: this.keyringController.memStore,
})
this.addressBookController = new AddressBookController(undefined, initState.AddressBookController)
this.threeBoxController = new ThreeBoxController({
preferencesController: this.preferencesController,
addressBookController: this.addressBookController,
keyringController: this.keyringController,
initState: initState.ThreeBoxController,
getKeyringControllerState: this.keyringController.memStore.getState.bind(this.keyringController.memStore),
version,
})
// tx mgmt
this.txController = new TransactionController({
initState: initState.TransactionController || initState.TransactionManager,
networkStore: this.networkController.networkStore,
preferencesStore: this.preferencesController.store,
txHistoryLimit: 40,
getNetwork: this.networkController.getNetworkState.bind(this),
signTransaction: this.keyringController.signTransaction.bind(this.keyringController),
provider: this.provider,
blockTracker: this.blockTracker,
getGasPrice: this.getGasPrice.bind(this),
})
this.txController.on('newUnapprovedTx', () => opts.showUnapprovedTx())
this.txController.on(`tx:status-update`, async (txId, status) => {
if (status === 'confirmed' || status === 'failed') {
const txMeta = this.txController.txStateManager.getTx(txId)
this.platform.showTransactionNotification(txMeta)
const { txReceipt } = txMeta
const participateInMetaMetrics = this.preferencesController.getParticipateInMetaMetrics()
if (txReceipt && txReceipt.status === '0x0' && participateInMetaMetrics) {
const metamaskState = await this.getState()
backEndMetaMetricsEvent(metamaskState, {
customVariables: {
errorMessage: txMeta.simulationFails.reason,
},
eventOpts: {
category: 'backend',
action: 'Transactions',
name: 'On Chain Failure',
},
})
}
}
})
this.networkController.on('networkDidChange', () => {
this.setCurrentCurrency(this.currencyRateController.state.currentCurrency, function () {})
})
this.shapeshiftController = new ShapeShiftController(undefined, initState.ShapeShiftController)
this.networkController.lookupNetwork()
this.messageManager = new MessageManager()
this.personalMessageManager = new PersonalMessageManager()
this.typedMessageManager = new TypedMessageManager({ networkController: this.networkController })
// ensure isClientOpenAndUnlocked is updated when memState updates
this.on('update', (memState) => {
this.isClientOpenAndUnlocked = memState.isUnlocked && this._isClientOpen
})
this.providerApprovalController = new ProviderApprovalController({
closePopup: opts.closePopup,
initState: initState.ProviderApprovalController,
keyringController: this.keyringController,
openPopup: opts.openPopup,
preferencesController: this.preferencesController,
})
this.abTestController = new ABTestController({
initState: initState.ABTestController,
})
this.store.updateStructure({
AppStateController: this.appStateController.store,
TransactionController: this.txController.store,
KeyringController: this.keyringController.store,
PreferencesController: this.preferencesController.store,
AddressBookController: this.addressBookController,
CurrencyController: this.currencyRateController,
ShapeShiftController: this.shapeshiftController,
NetworkController: this.networkController.store,
InfuraController: this.infuraController.store,
CachedBalancesController: this.cachedBalancesController.store,
OnboardingController: this.onboardingController.store,
ProviderApprovalController: this.providerApprovalController.store,
IncomingTransactionsController: this.incomingTransactionsController.store,
ThreeBoxController: this.threeBoxController.store,
ABTestController: this.abTestController.store,
})
this.memStore = new ComposableObservableStore(null, {
AppStateController: this.appStateController.store,
NetworkController: this.networkController.store,
AccountTracker: this.accountTracker.store,
TxController: this.txController.memStore,
CachedBalancesController: this.cachedBalancesController.store,
TokenRatesController: this.tokenRatesController.store,
MessageManager: this.messageManager.memStore,
PersonalMessageManager: this.personalMessageManager.memStore,
TypesMessageManager: this.typedMessageManager.memStore,
KeyringController: this.keyringController.memStore,
PreferencesController: this.preferencesController.store,
RecentBlocksController: this.recentBlocksController.store,
AddressBookController: this.addressBookController,
CurrencyController: this.currencyRateController,
ShapeshiftController: this.shapeshiftController,
InfuraController: this.infuraController.store,
OnboardingController: this.onboardingController.store,
// ProviderApprovalController
ProviderApprovalController: this.providerApprovalController.store,
ProviderApprovalControllerMemStore: this.providerApprovalController.memStore,
IncomingTransactionsController: this.incomingTransactionsController.store,
// ThreeBoxController
ThreeBoxController: this.threeBoxController.store,
ABTestController: this.abTestController.store,
// ENS Controller
EnsController: this.ensController.store,
})
this.memStore.subscribe(this.sendUpdate.bind(this))
}
/**
* Constructor helper: initialize a provider.
*/
initializeProvider () {
const providerOpts = {
static: {
eth_syncing: false,
web3_clientVersion: `MetaMask/v${version}`,
},
version,
// account mgmt
getAccounts: async ({ origin }) => {
// Expose no accounts if this origin has not been approved, preventing
// account-requring RPC methods from completing successfully
const exposeAccounts = this.providerApprovalController.shouldExposeAccounts(origin)
if (origin !== 'metamask' && !exposeAccounts) {
return []
}
const isUnlocked = this.keyringController.memStore.getState().isUnlocked
const selectedAddress = this.preferencesController.getSelectedAddress()
// only show address if account is unlocked
if (isUnlocked && selectedAddress) {
return [selectedAddress]
} else {
return []
}
},
// tx signing
processTransaction: this.newUnapprovedTransaction.bind(this),
// msg signing
processEthSignMessage: this.newUnsignedMessage.bind(this),
processTypedMessage: this.newUnsignedTypedMessage.bind(this),
processTypedMessageV3: this.newUnsignedTypedMessage.bind(this),
processTypedMessageV4: this.newUnsignedTypedMessage.bind(this),
processPersonalMessage: this.newUnsignedPersonalMessage.bind(this),
getPendingNonce: this.getPendingNonce.bind(this),
getPendingTransactionByHash: (hash) => this.txController.getFilteredTxList({ hash, status: 'submitted' })[0],
}
const providerProxy = this.networkController.initializeProvider(providerOpts)
return providerProxy
}
/**
* Constructor helper: initialize a public config store.
* This store is used to make some config info available to Dapps synchronously.
*/
createPublicConfigStore ({ checkIsEnabled }) {
// subset of state for metamask inpage provider
const publicConfigStore = new ObservableStore()
// setup memStore subscription hooks
this.on('update', updatePublicConfigStore)
updatePublicConfigStore(this.getState())
publicConfigStore.destroy = () => {
this.removeEventListener && this.removeEventListener('update', updatePublicConfigStore)
}
function updatePublicConfigStore (memState) {
const publicState = selectPublicState(memState)
publicConfigStore.putState(publicState)
}
function selectPublicState ({ isUnlocked, selectedAddress, network, provider }) {
const isEnabled = checkIsEnabled()
const isReady = isUnlocked && isEnabled
const result = {
isUnlocked,
isEnabled,
selectedAddress: isReady ? selectedAddress : null,
networkVersion: network,
chainId: selectChainId({ network, provider }),
}
return result
}
return publicConfigStore
}
//=============================================================================
// EXPOSED TO THE UI SUBSYSTEM
//=============================================================================
/**
* The metamask-state of the various controllers, made available to the UI
*
* @returns {Object} status
*/
getState () {
const vault = this.keyringController.store.getState().vault
const isInitialized = !!vault
return {
...{ isInitialized },
...this.memStore.getFlatState(),
}
}
/**
* Returns an Object containing API Callback Functions.
* These functions are the interface for the UI.
* The API object can be transmitted over a stream with dnode.
*
* @returns {Object} Object containing API functions.
*/
getApi () {
const keyringController = this.keyringController
const preferencesController = this.preferencesController
const txController = this.txController
const networkController = this.networkController
const providerApprovalController = this.providerApprovalController
const onboardingController = this.onboardingController
const threeBoxController = this.threeBoxController
const abTestController = this.abTestController
return {
// etc
getState: (cb) => cb(null, this.getState()),
setCurrentCurrency: this.setCurrentCurrency.bind(this),
setUseBlockie: this.setUseBlockie.bind(this),
setUseNonceField: this.setUseNonceField.bind(this),
setParticipateInMetaMetrics: this.setParticipateInMetaMetrics.bind(this),
setMetaMetricsSendCount: this.setMetaMetricsSendCount.bind(this),
setFirstTimeFlowType: this.setFirstTimeFlowType.bind(this),
setCurrentLocale: this.setCurrentLocale.bind(this),
markAccountsFound: this.markAccountsFound.bind(this),
markPasswordForgotten: this.markPasswordForgotten.bind(this),
unMarkPasswordForgotten: this.unMarkPasswordForgotten.bind(this),
getGasPrice: (cb) => cb(null, this.getGasPrice()),
// coinbase
buyEth: this.buyEth.bind(this),
// shapeshift
createShapeShiftTx: this.createShapeShiftTx.bind(this),
// primary HD keyring management
addNewAccount: nodeify(this.addNewAccount, this),
verifySeedPhrase: nodeify(this.verifySeedPhrase, this),
resetAccount: nodeify(this.resetAccount, this),
removeAccount: nodeify(this.removeAccount, this),
importAccountWithStrategy: nodeify(this.importAccountWithStrategy, this),
// hardware wallets
connectHardware: nodeify(this.connectHardware, this),
forgetDevice: nodeify(this.forgetDevice, this),
checkHardwareStatus: nodeify(this.checkHardwareStatus, this),
unlockHardwareWalletAccount: nodeify(this.unlockHardwareWalletAccount, this),
// mobile
fetchInfoToSync: nodeify(this.fetchInfoToSync, this),
// vault management
submitPassword: nodeify(this.submitPassword, this),
// network management
setProviderType: nodeify(networkController.setProviderType, networkController),
setCustomRpc: nodeify(this.setCustomRpc, this),
updateAndSetCustomRpc: nodeify(this.updateAndSetCustomRpc, this),
delCustomRpc: nodeify(this.delCustomRpc, this),
// PreferencesController
setSelectedAddress: nodeify(preferencesController.setSelectedAddress, preferencesController),
addToken: nodeify(preferencesController.addToken, preferencesController),
removeToken: nodeify(preferencesController.removeToken, preferencesController),
removeSuggestedTokens: nodeify(preferencesController.removeSuggestedTokens, preferencesController),
setCurrentAccountTab: nodeify(preferencesController.setCurrentAccountTab, preferencesController),
setAccountLabel: nodeify(preferencesController.setAccountLabel, preferencesController),
setFeatureFlag: nodeify(preferencesController.setFeatureFlag, preferencesController),
setPreference: nodeify(preferencesController.setPreference, preferencesController),
completeOnboarding: nodeify(preferencesController.completeOnboarding, preferencesController),
addKnownMethodData: nodeify(preferencesController.addKnownMethodData, preferencesController),
unsetMigratedPrivacyMode: nodeify(preferencesController.unsetMigratedPrivacyMode, preferencesController),
// BlacklistController
whitelistPhishingDomain: this.whitelistPhishingDomain.bind(this),
// AddressController
setAddressBook: nodeify(this.addressBookController.set, this.addressBookController),
removeFromAddressBook: this.addressBookController.delete.bind(this.addressBookController),
// AppStateController
setLastActiveTime: nodeify(this.appStateController.setLastActiveTime, this.appStateController),
setMkrMigrationReminderTimestamp: nodeify(this.appStateController.setMkrMigrationReminderTimestamp, this.appStateController),
// EnsController
tryReverseResolveAddress: nodeify(this.ensController.reverseResolveAddress, this.ensController),
// KeyringController
setLocked: nodeify(this.setLocked, this),
createNewVaultAndKeychain: nodeify(this.createNewVaultAndKeychain, this),
createNewVaultAndRestore: nodeify(this.createNewVaultAndRestore, this),
addNewKeyring: nodeify(keyringController.addNewKeyring, keyringController),
exportAccount: nodeify(keyringController.exportAccount, keyringController),
// txController
cancelTransaction: nodeify(txController.cancelTransaction, txController),
updateTransaction: nodeify(txController.updateTransaction, txController),
updateAndApproveTransaction: nodeify(txController.updateAndApproveTransaction, txController),
retryTransaction: nodeify(this.retryTransaction, this),
createCancelTransaction: nodeify(this.createCancelTransaction, this),
createSpeedUpTransaction: nodeify(this.createSpeedUpTransaction, this),
getFilteredTxList: nodeify(txController.getFilteredTxList, txController),
isNonceTaken: nodeify(txController.isNonceTaken, txController),
estimateGas: nodeify(this.estimateGas, this),
getPendingNonce: nodeify(this.getPendingNonce, this),
getNextNonce: nodeify(this.getNextNonce, this),
// messageManager
signMessage: nodeify(this.signMessage, this),
cancelMessage: this.cancelMessage.bind(this),
// personalMessageManager
signPersonalMessage: nodeify(this.signPersonalMessage, this),
cancelPersonalMessage: this.cancelPersonalMessage.bind(this),
// personalMessageManager
signTypedMessage: nodeify(this.signTypedMessage, this),
cancelTypedMessage: this.cancelTypedMessage.bind(this),
// provider approval
approveProviderRequestByOrigin: providerApprovalController.approveProviderRequestByOrigin.bind(providerApprovalController),
rejectProviderRequestByOrigin: providerApprovalController.rejectProviderRequestByOrigin.bind(providerApprovalController),
clearApprovedOrigins: providerApprovalController.clearApprovedOrigins.bind(providerApprovalController),
// onboarding controller
setSeedPhraseBackedUp: nodeify(onboardingController.setSeedPhraseBackedUp, onboardingController),
// 3Box
setThreeBoxSyncingPermission: nodeify(threeBoxController.setThreeBoxSyncingPermission, threeBoxController),
restoreFromThreeBox: nodeify(threeBoxController.restoreFromThreeBox, threeBoxController),
setShowRestorePromptToFalse: nodeify(threeBoxController.setShowRestorePromptToFalse, threeBoxController),
getThreeBoxLastUpdated: nodeify(threeBoxController.getLastUpdated, threeBoxController),
turnThreeBoxSyncingOn: nodeify(threeBoxController.turnThreeBoxSyncingOn, threeBoxController),
initializeThreeBox: nodeify(this.initializeThreeBox, this),
// a/b test controller
getAssignedABTestGroupName: nodeify(abTestController.getAssignedABTestGroupName, abTestController),
}
}
//=============================================================================
// VAULT / KEYRING RELATED METHODS
//=============================================================================
/**
* Creates a new Vault and create a new keychain.
*
* A vault, or KeyringController, is a controller that contains
* many different account strategies, currently called Keyrings.
* Creating it new means wiping all previous keyrings.
*
* A keychain, or keyring, controls many accounts with a single backup and signing strategy.
* For example, a mnemonic phrase can generate many accounts, and is a keyring.
*
* @param {string} password
*
* @returns {Object} vault
*/
async createNewVaultAndKeychain (password) {
const releaseLock = await this.createVaultMutex.acquire()
try {
let vault
const accounts = await this.keyringController.getAccounts()
if (accounts.length > 0) {
vault = await this.keyringController.fullUpdate()
} else {
vault = await this.keyringController.createNewVaultAndKeychain(password)
const accounts = await this.keyringController.getAccounts()
this.preferencesController.setAddresses(accounts)
this.selectFirstIdentity()
}
releaseLock()
return vault
} catch (err) {
releaseLock()
throw err
}
}
/**
* Create a new Vault and restore an existent keyring.
* @param {} password
* @param {} seed
*/
async createNewVaultAndRestore (password, seed) {
const releaseLock = await this.createVaultMutex.acquire()
try {
let accounts, lastBalance
const keyringController = this.keyringController
// clear known identities
this.preferencesController.setAddresses([])
// create new vault
const vault = await keyringController.createNewVaultAndRestore(password, seed)
const ethQuery = new EthQuery(this.provider)
accounts = await keyringController.getAccounts()
lastBalance = await this.getBalance(accounts[accounts.length - 1], ethQuery)
const primaryKeyring = keyringController.getKeyringsByType('HD Key Tree')[0]
if (!primaryKeyring) {
throw new Error('MetamaskController - No HD Key Tree found')
}
// seek out the first zero balance
while (lastBalance !== '0x0') {
await keyringController.addNewAccount(primaryKeyring)
accounts = await keyringController.getAccounts()
lastBalance = await this.getBalance(accounts[accounts.length - 1], ethQuery)
}
// set new identities
this.preferencesController.setAddresses(accounts)
this.selectFirstIdentity()
releaseLock()
return vault
} catch (err) {
releaseLock()
throw err
}
}
/**
* Get an account balance from the AccountTracker or request it directly from the network.
* @param {string} address - The account address
* @param {EthQuery} ethQuery - The EthQuery instance to use when asking the network
*/
getBalance (address, ethQuery) {
return new Promise((resolve, reject) => {
const cached = this.accountTracker.store.getState().accounts[address]
if (cached && cached.balance) {
resolve(cached.balance)
} else {
ethQuery.getBalance(address, (error, balance) => {
if (error) {
reject(error)
log.error(error)
} else {
resolve(balance || '0x0')
}
})
}
})
}
/**
* Collects all the information that we want to share
* with the mobile client for syncing purposes
* @returns Promise<Object> Parts of the state that we want to syncx
*/
async fetchInfoToSync () {
// Preferences
const {
accountTokens,
currentLocale,
frequentRpcList,
identities,
selectedAddress,
tokens,
} = this.preferencesController.store.getState()
// Filter ERC20 tokens
const filteredAccountTokens = {}
Object.keys(accountTokens).forEach(address => {
const checksummedAddress = ethUtil.toChecksumAddress(address)
filteredAccountTokens[checksummedAddress] = {}
Object.keys(accountTokens[address]).forEach(
networkType => (filteredAccountTokens[checksummedAddress][networkType] = networkType !== 'mainnet' ?
accountTokens[address][networkType] :
accountTokens[address][networkType].filter(({ address }) => {
const tokenAddress = ethUtil.toChecksumAddress(address)
return contractMap[tokenAddress] ? contractMap[tokenAddress].erc20 : true
})
)
)
})
const preferences = {
accountTokens: filteredAccountTokens,
currentLocale,
frequentRpcList,
identities,
selectedAddress,
tokens,
}
// Accounts
const hdKeyring = this.keyringController.getKeyringsByType('HD Key Tree')[0]
const hdAccounts = await hdKeyring.getAccounts()
const accounts = {
hd: hdAccounts.filter((item, pos) => (hdAccounts.indexOf(item) === pos)).map(address => ethUtil.toChecksumAddress(address)),
simpleKeyPair: [],
ledger: [],
trezor: [],
}
// transactions
let transactions = this.txController.store.getState().transactions
// delete tx for other accounts that we're not importing
transactions = transactions.filter(tx => {
const checksummedTxFrom = ethUtil.toChecksumAddress(tx.txParams.from)
return (
accounts.hd.includes(checksummedTxFrom)
)
})
return {
accounts,
preferences,
transactions,
network: this.networkController.store.getState(),
}
}
/*
* Submits the user's password and attempts to unlock the vault.
* Also synchronizes the preferencesController, to ensure its schema
* is up to date with known accounts once the vault is decrypted.
*
* @param {string} password - The user's password
* @returns {Promise<object>} - The keyringController update.
*/
async submitPassword (password) {
await this.keyringController.submitPassword(password)
const accounts = await this.keyringController.getAccounts()
// verify keyrings
const nonSimpleKeyrings = this.keyringController.keyrings.filter(keyring => keyring.type !== 'Simple Key Pair')
if (nonSimpleKeyrings.length > 1 && this.diagnostics) {
await this.diagnostics.reportMultipleKeyrings(nonSimpleKeyrings)
}
await this.preferencesController.syncAddresses(accounts)
await this.txController.pendingTxTracker.updatePendingTxs()
try {
const threeBoxSyncingAllowed = this.threeBoxController.getThreeBoxSyncingState()
if (threeBoxSyncingAllowed && !this.threeBoxController.box) {
// 'await' intentionally omitted to avoid waiting for initialization
this.threeBoxController.init()
this.threeBoxController.turnThreeBoxSyncingOn()
} else if (threeBoxSyncingAllowed && this.threeBoxController.box) {
this.threeBoxController.turnThreeBoxSyncingOn()
}
} catch (error) {
log.error(error)
}
return this.keyringController.fullUpdate()
}
/**
* @type Identity
* @property {string} name - The account nickname.
* @property {string} address - The account's ethereum address, in lower case.
* @property {boolean} mayBeFauceting - Whether this account is currently
* receiving funds from our automatic Ropsten faucet.
*/
/**
* Sets the first address in the state to the selected address
*/
selectFirstIdentity () {
const { identities } = this.preferencesController.store.getState()
const address = Object.keys(identities)[0]
this.preferencesController.setSelectedAddress(address)
}
//
// Hardware
//
async getKeyringForDevice (deviceName, hdPath = null) {
let keyringName = null
switch (deviceName) {
case 'trezor':
keyringName = TrezorKeyring.type
break
case 'ledger':
keyringName = LedgerBridgeKeyring.type
break
default:
throw new Error('MetamaskController:getKeyringForDevice - Unknown device')
}
let keyring = await this.keyringController.getKeyringsByType(keyringName)[0]
if (!keyring) {
keyring = await this.keyringController.addNewKeyring(keyringName)
}
if (hdPath && keyring.setHdPath) {
keyring.setHdPath(hdPath)
}
keyring.network = this.networkController.getProviderConfig().type
return keyring
}
/**
* Fetch account list from a trezor device.
*
* @returns [] accounts
*/
async connectHardware (deviceName, page, hdPath) {
const keyring = await this.getKeyringForDevice(deviceName, hdPath)
let accounts = []
switch (page) {
case -1:
accounts = await keyring.getPreviousPage()
break
case 1:
accounts = await keyring.getNextPage()
break
default:
accounts = await keyring.getFirstPage()
}
// Merge with existing accounts
// and make sure addresses are not repeated
const oldAccounts = await this.keyringController.getAccounts()
const accountsToTrack = [...new Set(oldAccounts.concat(accounts.map(a => a.address.toLowerCase())))]
this.accountTracker.syncWithAddresses(accountsToTrack)
return accounts
}
/**
* Check if the device is unlocked
*
* @returns {Promise<boolean>}
*/
async checkHardwareStatus (deviceName, hdPath) {
const keyring = await this.getKeyringForDevice(deviceName, hdPath)
return keyring.isUnlocked()
}
/**
* Clear
*
* @returns {Promise<boolean>}
*/
async forgetDevice (deviceName) {
const keyring = await this.getKeyringForDevice(deviceName)
keyring.forgetDevice()
return true
}
/**
* Imports an account from a trezor device.
*
* @returns {} keyState
*/
async unlockHardwareWalletAccount (index, deviceName, hdPath) {
const keyring = await this.getKeyringForDevice(deviceName, hdPath)
keyring.setAccountToUnlock(index)
const oldAccounts = await this.keyringController.getAccounts()
const keyState = await this.keyringController.addNewAccount(keyring)
const newAccounts = await this.keyringController.getAccounts()
this.preferencesController.setAddresses(newAccounts)
newAccounts.forEach(address => {
if (!oldAccounts.includes(address)) {
// Set the account label to Trezor 1 / Ledger 1, etc
this.preferencesController.setAccountLabel(address, `${deviceName[0].toUpperCase()}${deviceName.slice(1)} ${parseInt(index, 10) + 1}`)
// Select the account
this.preferencesController.setSelectedAddress(address)
}
})
const { identities } = this.preferencesController.store.getState()
return { ...keyState, identities }
}
//
// Account Management
//
/**
* Adds a new account to the default (first) HD seed phrase Keyring.
*
* @returns {} keyState
*/
async addNewAccount () {
const primaryKeyring = this.keyringController.getKeyringsByType('HD Key Tree')[0]
if (!primaryKeyring) {
throw new Error('MetamaskController - No HD Key Tree found')
}
const keyringController = this.keyringController
const oldAccounts = await keyringController.getAccounts()
const keyState = await keyringController.addNewAccount(primaryKeyring)
const newAccounts = await keyringController.getAccounts()
await this.verifySeedPhrase()
this.preferencesController.setAddresses(newAccounts)
newAccounts.forEach((address) => {
if (!oldAccounts.includes(address)) {
this.preferencesController.setSelectedAddress(address)
}
})
const {identities} = this.preferencesController.store.getState()
return {...keyState, identities}
}
/**
* Verifies the validity of the current vault's seed phrase.
*
* Validity: seed phrase restores the accounts belonging to the current vault.
*
* Called when the first account is created and on unlocking the vault.
*
* @returns {Promise<string>} Seed phrase to be confirmed by the user.
*/
async verifySeedPhrase () {
const primaryKeyring = this.keyringController.getKeyringsByType('HD Key Tree')[0]
if (!primaryKeyring) {
throw new Error('MetamaskController - No HD Key Tree found')
}
const serialized = await primaryKeyring.serialize()
const seedWords = serialized.mnemonic
const accounts = await primaryKeyring.getAccounts()
if (accounts.length < 1) {
throw new Error('MetamaskController - No accounts found')
}
try {
await seedPhraseVerifier.verifyAccounts(accounts, seedWords)
return seedWords
} catch (err) {
log.error(err.message)
throw err
}
}
/**
* Clears the transaction history, to allow users to force-reset their nonces.
* Mostly used in development environments, when networks are restarted with
* the same network ID.
*
* @returns Promise<string> The current selected address.
*/
async resetAccount () {
const selectedAddress = this.preferencesController.getSelectedAddress()
this.txController.wipeTransactions(selectedAddress)
this.networkController.resetConnection()
return selectedAddress
}
/**
* Removes an account from state / storage.
*
* @param {string[]} address A hex address
*
*/
async removeAccount (address) {
// Remove account from the preferences controller
this.preferencesController.removeAddress(address)
// Remove account from the account tracker controller
this.accountTracker.removeAccount([address])
// Remove account from the keyring
await this.keyringController.removeAccount(address)
return address
}
/**
* Imports an account with the specified import strategy.
* These are defined in app/scripts/account-import-strategies
* Each strategy represents a different way of serializing an Ethereum key pair.
*
* @param {string} strategy - A unique identifier for an account import strategy.
* @param {any} args - The data required by that strategy to import an account.
* @param {Function} cb - A callback function called with a state update on success.
*/
async importAccountWithStrategy (strategy, args) {
const privateKey = await accountImporter.importAccount(strategy, args)
const keyring = await this.keyringController.addNewKeyring('Simple Key Pair', [ privateKey ])
const accounts = await keyring.getAccounts()
// update accounts in preferences controller
const allAccounts = await this.keyringController.getAccounts()
this.preferencesController.setAddresses(allAccounts)
// set new account as selected
await this.preferencesController.setSelectedAddress(accounts[0])
}
// ---------------------------------------------------------------------------
// Identity Management (signature operations)
/**
* Called when a Dapp suggests a new tx to be signed.
* this wrapper needs to exist so we can provide a reference to
* "newUnapprovedTransaction" before "txController" is instantiated
*
* @param {Object} msgParams - The params passed to eth_sign.
* @param {Object} req - (optional) the original request, containing the origin
*/
async newUnapprovedTransaction (txParams, req) {
return await this.txController.newUnapprovedTransaction(txParams, req)
}
// eth_sign methods:
/**
* Called when a Dapp uses the eth_sign method, to request user approval.
* eth_sign is a pure signature of arbitrary data. It is on a deprecation
* path, since this data can be a transaction, or can leak private key
* information.
*
* @param {Object} msgParams - The params passed to eth_sign.
* @param {Function} cb = The callback function called with the signature.
*/
newUnsignedMessage (msgParams, req) {
const promise = this.messageManager.addUnapprovedMessageAsync(msgParams, req)
this.sendUpdate()
this.opts.showUnconfirmedMessage()
return promise
}
/**
* Signifies user intent to complete an eth_sign method.
*
* @param {Object} msgParams The params passed to eth_call.
* @returns {Promise<Object>} Full state update.
*/
signMessage (msgParams) {
log.info('MetaMaskController - signMessage')
const msgId = msgParams.metamaskId
// sets the status op the message to 'approved'
// and removes the metamaskId for signing
return this.messageManager.approveMessage(msgParams)
.then((cleanMsgParams) => {
// signs the message
return this.keyringController.signMessage(cleanMsgParams)
})
.then((rawSig) => {
// tells the listener that the message has been signed
// and can be returned to the dapp
this.messageManager.setMsgStatusSigned(msgId, rawSig)
return this.getState()
})
}
/**
* Used to cancel a message submitted via eth_sign.
*
* @param {string} msgId - The id of the message to cancel.
*/
cancelMessage (msgId, cb) {
const messageManager = this.messageManager
messageManager.rejectMsg(msgId)
if (cb && typeof cb === 'function') {
cb(null, this.getState())
}
}
// personal_sign methods:
/**
* Called when a dapp uses the personal_sign method.
* This is identical to the Geth eth_sign method, and may eventually replace
* eth_sign.
*
* We currently define our eth_sign and personal_sign mostly for legacy Dapps.
*
* @param {Object} msgParams - The params of the message to sign & return to the Dapp.
* @param {Function} cb - The callback function called with the signature.
* Passed back to the requesting Dapp.
*/
async newUnsignedPersonalMessage (msgParams, req) {
const promise = this.personalMessageManager.addUnapprovedMessageAsync(msgParams, req)
this.sendUpdate()
this.opts.showUnconfirmedMessage()
return promise
}
/**
* Signifies a user's approval to sign a personal_sign message in queue.
* Triggers signing, and the callback function from newUnsignedPersonalMessage.
*
* @param {Object} msgParams - The params of the message to sign & return to the Dapp.
* @returns {Promise<Object>} - A full state update.
*/
signPersonalMessage (msgParams) {
log.info('MetaMaskController - signPersonalMessage')
const msgId = msgParams.metamaskId
// sets the status op the message to 'approved'
// and removes the metamaskId for signing
return this.personalMessageManager.approveMessage(msgParams)
.then((cleanMsgParams) => {
// signs the message
return this.keyringController.signPersonalMessage(cleanMsgParams)
})
.then((rawSig) => {
// tells the listener that the message has been signed
// and can be returned to the dapp
this.personalMessageManager.setMsgStatusSigned(msgId, rawSig)
return this.getState()
})
}
/**
* Used to cancel a personal_sign type message.
* @param {string} msgId - The ID of the message to cancel.
* @param {Function} cb - The callback function called with a full state update.
*/
cancelPersonalMessage (msgId, cb) {
const messageManager = this.personalMessageManager
messageManager.rejectMsg(msgId)
if (cb && typeof cb === 'function') {
cb(null, this.getState())
}
}
// eth_signTypedData methods
/**
* Called when a dapp uses the eth_signTypedData method, per EIP 712.
*
* @param {Object} msgParams - The params passed to eth_signTypedData.
* @param {Function} cb - The callback function, called with the signature.
*/
newUnsignedTypedMessage (msgParams, req, version) {
const promise = this.typedMessageManager.addUnapprovedMessageAsync(msgParams, req, version)
this.sendUpdate()
this.opts.showUnconfirmedMessage()
return promise
}
/**
* The method for a user approving a call to eth_signTypedData, per EIP 712.
* Triggers the callback in newUnsignedTypedMessage.
*
* @param {Object} msgParams - The params passed to eth_signTypedData.
* @returns {Object} Full state update.
*/
async signTypedMessage (msgParams) {
log.info('MetaMaskController - eth_signTypedData')
const msgId = msgParams.metamaskId
const version = msgParams.version
try {
const cleanMsgParams = await this.typedMessageManager.approveMessage(msgParams)
// For some reason every version after V1 used stringified params.
if (version !== 'V1') {
// But we don't have to require that. We can stop suggesting it now:
if (typeof cleanMsgParams.data === 'string') {
cleanMsgParams.data = JSON.parse(cleanMsgParams.data)
}
}
const signature = await this.keyringController.signTypedMessage(cleanMsgParams, { version })
this.typedMessageManager.setMsgStatusSigned(msgId, signature)
return this.getState()
} catch (error) {
log.info('MetaMaskController - eth_signTypedData failed.', error)
this.typedMessageManager.errorMessage(msgId, error)
}
}
/**
* Used to cancel a eth_signTypedData type message.
* @param {string} msgId - The ID of the message to cancel.
* @param {Function} cb - The callback function called with a full state update.
*/
cancelTypedMessage (msgId, cb) {
const messageManager = this.typedMessageManager
messageManager.rejectMsg(msgId)
if (cb && typeof cb === 'function') {
cb(null, this.getState())
}
}
// ---------------------------------------------------------------------------
// MetaMask Version 3 Migration Account Restauration Methods
/**
* A legacy method (probably dead code) that was used when we swapped out our
* key management library that we depended on.
*
* Described in:
* https://medium.com/metamask/metamask-3-migration-guide-914b79533cdd
*
* @deprecated
* @param {} migratorOutput
*/
restoreOldVaultAccounts (migratorOutput) {
const { serialized } = migratorOutput
return this.keyringController.restoreKeyring(serialized)
.then(() => migratorOutput)
}
/**
* A legacy method used to record user confirmation that they understand
* that some of their accounts have been recovered but should be backed up.
* This function no longer does anything and will be removed.
*
* @deprecated
* @param {Function} cb - A callback function called with a full state update.
*/
markAccountsFound (cb) {
// TODO Remove me
cb(null, this.getState())
}
/**
* An account object
* @typedef Account
* @property string privateKey - The private key of the account.
*/
//=============================================================================
// END (VAULT / KEYRING RELATED METHODS)
//=============================================================================
/**
* Allows a user to try to speed up a transaction by retrying it
* with higher gas.
*
* @param {string} txId - The ID of the transaction to speed up.
*/
async retryTransaction (txId, gasPrice) {
await this.txController.retryTransaction(txId, gasPrice)
const state = await this.getState()
return state
}
/**
* Allows a user to attempt to cancel a previously submitted transaction by creating a new
* transaction.
* @param {number} originalTxId - the id of the txMeta that you want to attempt to cancel
* @param {string=} customGasPrice - the hex value to use for the cancel transaction
* @returns {object} MetaMask state
*/
async createCancelTransaction (originalTxId, customGasPrice) {
try {
await this.txController.createCancelTransaction(originalTxId, customGasPrice)
const state = await this.getState()
return state
} catch (error) {
throw error
}
}
async createSpeedUpTransaction (originalTxId, customGasPrice) {
await this.txController.createSpeedUpTransaction(originalTxId, customGasPrice)
const state = await this.getState()
return state
}
estimateGas (estimateGasParams) {
return new Promise((resolve, reject) => {
return this.txController.txGasUtil.query.estimateGas(estimateGasParams, (err, res) => {
if (err) {
return reject(err)
}
return resolve(res)
})
})
}
//=============================================================================
// PASSWORD MANAGEMENT
//=============================================================================
/**
* Allows a user to begin the seed phrase recovery process.
* @param {Function} cb - A callback function called when complete.
*/
markPasswordForgotten (cb) {
this.preferencesController.setPasswordForgotten(true)
this.sendUpdate()
cb()
}
/**
* Allows a user to end the seed phrase recovery process.
* @param {Function} cb - A callback function called when complete.
*/
unMarkPasswordForgotten (cb) {
this.preferencesController.setPasswordForgotten(false)
this.sendUpdate()
cb()
}
//=============================================================================
// SETUP
//=============================================================================
/**
* Used to create a multiplexed stream for connecting to an untrusted context
* like a Dapp or other extension.
* @param {*} connectionStream - The Duplex stream to connect to.
* @param {URL} senderUrl - The URL of the resource requesting the stream,
* which may trigger a blacklist reload.
* @param {string} extensionId - The extension id of the sender, if the sender
* is an extension
*/
setupUntrustedCommunication (connectionStream, senderUrl, extensionId) {
// Check if new connection is blacklisted
if (this.phishingController.test(senderUrl.hostname)) {
log.debug('MetaMask - sending phishing warning for', senderUrl.hostname)
this.sendPhishingWarning(connectionStream, senderUrl.hostname)
return
}
// setup multiplexing
const mux = setupMultiplex(connectionStream)
// connect features
const publicApi = this.setupPublicApi(mux.createStream('publicApi'))
this.setupProviderConnection(mux.createStream('provider'), senderUrl, extensionId, publicApi)
this.setupPublicConfig(mux.createStream('publicConfig'), senderUrl)
}
/**
* Used to create a multiplexed stream for connecting to a trusted context,
* like our own user interfaces, which have the provider APIs, but also
* receive the exported API from this controller, which includes trusted
* functions, like the ability to approve transactions or sign messages.
*
* @param {*} connectionStream - The duplex stream to connect to.
* @param {URL} senderUrl - The URL requesting the connection,
* used in logging and error reporting.
*/
setupTrustedCommunication (connectionStream, senderUrl) {
// setup multiplexing
const mux = setupMultiplex(connectionStream)
// connect features
this.setupControllerConnection(mux.createStream('controller'))
this.setupProviderConnection(mux.createStream('provider'), senderUrl)
}
/**
* Called when we detect a suspicious domain. Requests the browser redirects
* to our anti-phishing page.
*
* @private
* @param {*} connectionStream - The duplex stream to the per-page script,
* for sending the reload attempt to.
* @param {string} hostname - The URL that triggered the suspicion.
*/
sendPhishingWarning (connectionStream, hostname) {
const mux = setupMultiplex(connectionStream)
const phishingStream = mux.createStream('phishing')
phishingStream.write({ hostname })
}
/**
* A method for providing our API over a stream using Dnode.
* @param {*} outStream - The stream to provide our API over.
*/
setupControllerConnection (outStream) {
const api = this.getApi()
const dnode = Dnode(api)
// report new active controller connection
this.activeControllerConnections++
this.emit('controllerConnectionChanged', this.activeControllerConnections)
// connect dnode api to remote connection
pump(
outStream,
dnode,
outStream,
(err) => {
// report new active controller connection
this.activeControllerConnections--
this.emit('controllerConnectionChanged', this.activeControllerConnections)
// report any error
if (err) {
log.error(err)
}
}
)
dnode.on('remote', (remote) => {
// push updates to popup
const sendUpdate = (update) => remote.sendUpdate(update)
this.on('update', sendUpdate)
// remove update listener once the connection ends
dnode.on('end', () => this.removeListener('update', sendUpdate))
})
}
/**
* A method for serving our ethereum provider over a given stream.
* @param {*} outStream - The stream to provide over.
* @param {URL} senderUrl - The URI of the requesting resource.
* @param {string} extensionId - The id of the extension, if the requesting
* resource is an extension.
* @param {object} publicApi - The public API
*/
setupProviderConnection (outStream, senderUrl, extensionId, publicApi) {
const getSiteMetadata = publicApi && publicApi.getSiteMetadata
const engine = this.setupProviderEngine(senderUrl, extensionId, getSiteMetadata)
// setup connection
const providerStream = createEngineStream({ engine })
pump(
outStream,
providerStream,
outStream,
(err) => {
// handle any middleware cleanup
engine._middleware.forEach((mid) => {
if (mid.destroy && typeof mid.destroy === 'function') {
mid.destroy()
}
})
if (err) {
log.error(err)
}
}
)
}
/**
* A method for creating a provider that is safely restricted for the requesting domain.
**/
setupProviderEngine (senderUrl, extensionId, getSiteMetadata) {
const origin = senderUrl.hostname
// setup json rpc engine stack
const engine = new RpcEngine()
const provider = this.provider
const blockTracker = this.blockTracker
// create filter polyfill middleware
const filterMiddleware = createFilterMiddleware({ provider, blockTracker })
// create subscription polyfill middleware
const subscriptionManager = createSubscriptionManager({ provider, blockTracker })
subscriptionManager.events.on('notification', (message) => engine.emit('notification', message))
// metadata
engine.push(createOriginMiddleware({ origin }))
engine.push(createLoggerMiddleware({ origin }))
// filter and subscription polyfills
engine.push(filterMiddleware)
engine.push(subscriptionManager.middleware)
// watch asset
engine.push(this.preferencesController.requestWatchAsset.bind(this.preferencesController))
// requestAccounts
engine.push(this.providerApprovalController.createMiddleware({
senderUrl,
extensionId,
getSiteMetadata,
}))
// forward to metamask primary provider
engine.push(providerAsMiddleware(provider))
return engine
}
/**
* A method for providing our public config info over a stream.
* This includes info we like to be synchronous if possible, like
* the current selected account, and network ID.
*
* Since synchronous methods have been deprecated in web3,
* this is a good candidate for deprecation.
*
* @param {*} outStream - The stream to provide public config over.
* @param {URL} senderUrl - The URL of requesting resource
*/
setupPublicConfig (outStream, senderUrl) {
const configStore = this.createPublicConfigStore({
// check the providerApprovalController's approvedOrigins
checkIsEnabled: () => this.providerApprovalController.shouldExposeAccounts(senderUrl.hostname),
})
const configStream = asStream(configStore)
pump(
configStream,
outStream,
(err) => {
configStore.destroy()
configStream.destroy()
if (err) {
log.error(err)
}
}
)
}
onMessage (message, sender, sendResponse) {
if (!message || !message.type) {
log.debug(`Ignoring invalid message: '${JSON.stringify(message)}'`)
return
}
let handleMessage
try {
if (message.type === 'metamask:registerOnboarding') {
assert(sender.tab, 'Missing tab from sender')
assert(sender.tab.id && sender.tab.id !== extension.tabs.TAB_ID_NONE, 'Missing tab ID from sender')
assert(message.location, 'Missing location from message')
handleMessage = this.onboardingController.registerOnboarding(message.location, sender.tab.id)
} else {
throw new Error(`Unrecognized message type: '${message.type}'`)
}
} catch (error) {
console.error(error)
sendResponse(error)
return true
}
if (handleMessage) {
handleMessage
.then(() => {
sendResponse(null, true)
})
.catch((error) => {
console.error(error)
sendResponse(error)
})
return true
}
}
/**
* A method for providing our public api over a stream.
* This includes a method for setting site metadata like title and image
*
* @param {*} outStream - The stream to provide the api over.
*/
setupPublicApi (outStream) {
const dnode = Dnode()
// connect dnode api to remote connection
pump(
outStream,
dnode,
outStream,
(err) => {
// report any error
if (err) {
log.error(err)
}
}
)
const getRemote = createDnodeRemoteGetter(dnode)
const publicApi = {
// wrap with an await remote
getSiteMetadata: async () => {
const remote = await getRemote()
return await pify(remote.getSiteMetadata)()
},
}
return publicApi
}
/**
* Handle a KeyringController update
* @param {object} state the KC state
* @return {Promise<void>}
* @private
*/
async _onKeyringControllerUpdate (state) {
const {isUnlocked, keyrings} = state
const addresses = keyrings.reduce((acc, {accounts}) => acc.concat(accounts), [])
if (!addresses.length) {
return
}
// Ensure preferences + identities controller know about all addresses
this.preferencesController.addAddresses(addresses)
this.accountTracker.syncWithAddresses(addresses)
const wasLocked = !isUnlocked
if (wasLocked) {
const oldSelectedAddress = this.preferencesController.getSelectedAddress()
if (!addresses.includes(oldSelectedAddress)) {
const address = addresses[0]
await this.preferencesController.setSelectedAddress(address)
}
}
}
/**
* A method for emitting the full MetaMask state to all registered listeners.
* @private
*/
privateSendUpdate () {
this.emit('update', this.getState())
}
/**
* A method for estimating a good gas price at recent prices.
* Returns the lowest price that would have been included in
* 50% of recent blocks.
*
* @returns {string} A hex representation of the suggested wei gas price.
*/
getGasPrice () {
const { recentBlocksController } = this
const { recentBlocks } = recentBlocksController.store.getState()
// Return 1 gwei if no blocks have been observed:
if (recentBlocks.length === 0) {
return '0x' + GWEI_BN.toString(16)
}
const lowestPrices = recentBlocks.map((block) => {
if (!block.gasPrices || block.gasPrices.length < 1) {
return GWEI_BN
}
return block.gasPrices
.map(hexPrefix => hexPrefix.substr(2))
.map(hex => new BN(hex, 16))
.sort((a, b) => {
return a.gt(b) ? 1 : -1
})[0]
})
.map(number => number.div(GWEI_BN).toNumber())
const percentileNum = percentile(65, lowestPrices)
const percentileNumBn = new BN(percentileNum)
return '0x' + percentileNumBn.mul(GWEI_BN).toString(16)
}
/**
* Returns the nonce that will be associated with a transaction once approved
* @param address {string} - The hex string address for the transaction
* @returns Promise<number>
*/
async getPendingNonce (address) {
const { nonceDetails, releaseLock } = await this.txController.nonceTracker.getNonceLock(address)
const pendingNonce = nonceDetails.params.highestSuggested
releaseLock()
return pendingNonce
}
/**
* Returns the next nonce according to the nonce-tracker
* @param address {string} - The hex string address for the transaction
* @returns Promise<number>
*/
async getNextNonce (address) {
let nonceLock
try {
nonceLock = await this.txController.nonceTracker.getNonceLock(address)
} finally {
nonceLock.releaseLock()
}
return nonceLock.nextNonce
}
//=============================================================================
// CONFIG
//=============================================================================
// Log blocks
/**
* A method for setting the user's preferred display currency.
* @param {string} currencyCode - The code of the preferred currency.
* @param {Function} cb - A callback function returning currency info.
*/
setCurrentCurrency (currencyCode, cb) {
const { ticker } = this.networkController.getNetworkConfig()
try {
const currencyState = {
nativeCurrency: ticker,
currentCurrency: currencyCode,
}
this.currencyRateController.update(currencyState)
this.currencyRateController.configure(currencyState)
cb(null, this.currencyRateController.state)
} catch (err) {
cb(err)
}
}
/**
* A method for forwarding the user to the easiest way to obtain ether,
* or the network "gas" currency, for the current selected network.
*
* @param {string} address - The address to fund.
* @param {string} amount - The amount of ether desired, as a base 10 string.
*/
buyEth (address, amount) {
if (!amount) {
amount = '5'
}
const network = this.networkController.getNetworkState()
const url = getBuyEthUrl({ network, address, amount })
if (url) {
this.platform.openWindow({ url })
}
}
/**
* A method for triggering a shapeshift currency transfer.
* @param {string} depositAddress - The address to deposit to.
* @property {string} depositType - An abbreviation of the type of crypto currency to be deposited.
*/
createShapeShiftTx (depositAddress, depositType) {
this.shapeshiftController.createTransaction(depositAddress, depositType)
}
// network
/**
* A method for selecting a custom URL for an ethereum RPC provider and updating it
* @param {string} rpcUrl - A URL for a valid Ethereum RPC API.
* @param {number} chainId - The chainId of the selected network.
* @param {string} ticker - The ticker symbol of the selected network.
* @param {string} nickname - Optional nickname of the selected network.
* @returns {Promise<String>} - The RPC Target URL confirmed.
*/
async updateAndSetCustomRpc (rpcUrl, chainId, ticker = 'ETH', nickname, rpcPrefs) {
await this.preferencesController.updateRpc({ rpcUrl, chainId, ticker, nickname, rpcPrefs })
this.networkController.setRpcTarget(rpcUrl, chainId, ticker, nickname, rpcPrefs)
return rpcUrl
}
/**
* A method for selecting a custom URL for an ethereum RPC provider.
* @param {string} rpcTarget - A URL for a valid Ethereum RPC API.
* @param {number} chainId - The chainId of the selected network.
* @param {string} ticker - The ticker symbol of the selected network.
* @param {string} nickname - Optional nickname of the selected network.
* @returns {Promise<String>} - The RPC Target URL confirmed.
*/
async setCustomRpc (rpcTarget, chainId, ticker = 'ETH', nickname = '', rpcPrefs = {}) {
const frequentRpcListDetail = this.preferencesController.getFrequentRpcListDetail()
const rpcSettings = frequentRpcListDetail.find((rpc) => rpcTarget === rpc.rpcUrl)
if (rpcSettings) {
this.networkController.setRpcTarget(rpcSettings.rpcUrl, rpcSettings.chainId, rpcSettings.ticker, rpcSettings.nickname, rpcPrefs)
} else {
this.networkController.setRpcTarget(rpcTarget, chainId, ticker, nickname, rpcPrefs)
await this.preferencesController.addToFrequentRpcList(rpcTarget, chainId, ticker, nickname, rpcPrefs)
}
return rpcTarget
}
/**
* A method for deleting a selected custom URL.
* @param {string} rpcTarget - A RPC URL to delete.
*/
async delCustomRpc (rpcTarget) {
await this.preferencesController.removeFromFrequentRpcList(rpcTarget)
}
async initializeThreeBox () {
await this.threeBoxController.init()
}
/**
* Sets whether or not to use the blockie identicon format.
* @param {boolean} val - True for bockie, false for jazzicon.
* @param {Function} cb - A callback function called when complete.
*/
setUseBlockie (val, cb) {
try {
this.preferencesController.setUseBlockie(val)
cb(null)
} catch (err) {
cb(err)
}
}
/**
* Sets whether or not to use the nonce field.
* @param {boolean} val - True for nonce field, false for not nonce field.
* @param {Function} cb - A callback function called when complete.
*/
setUseNonceField (val, cb) {
try {
this.preferencesController.setUseNonceField(val)
cb(null)
} catch (err) {
cb(err)
}
}
/**
* Sets whether or not the user will have usage data tracked with MetaMetrics
* @param {boolean} bool - True for users that wish to opt-in, false for users that wish to remain out.
* @param {Function} cb - A callback function called when complete.
*/
setParticipateInMetaMetrics (bool, cb) {
try {
const metaMetricsId = this.preferencesController.setParticipateInMetaMetrics(bool)
cb(null, metaMetricsId)
} catch (err) {
cb(err)
}
}
setMetaMetricsSendCount (val, cb) {
try {
this.preferencesController.setMetaMetricsSendCount(val)
cb(null)
} catch (err) {
cb(err)
}
}
/**
* Sets the type of first time flow the user wishes to follow: create or import
* @param {String} type - Indicates the type of first time flow the user wishes to follow
* @param {Function} cb - A callback function called when complete.
*/
setFirstTimeFlowType (type, cb) {
try {
this.preferencesController.setFirstTimeFlowType(type)
cb(null)
} catch (err) {
cb(err)
}
}
/**
* A method for setting a user's current locale, affecting the language rendered.
* @param {string} key - Locale identifier.
* @param {Function} cb - A callback function called when complete.
*/
setCurrentLocale (key, cb) {
try {
const direction = this.preferencesController.setCurrentLocale(key)
cb(null, direction)
} catch (err) {
cb(err)
}
}
/**
* A method for initializing storage the first time.
* @param {Object} initState - The default state to initialize with.
* @private
*/
recordFirstTimeInfo (initState) {
if (!('firstTimeInfo' in initState)) {
initState.firstTimeInfo = {
version,
date: Date.now(),
}
}
}
// TODO: Replace isClientOpen methods with `controllerConnectionChanged` events.
/**
* A method for recording whether the MetaMask user interface is open or not.
* @private
* @param {boolean} open
*/
set isClientOpen (open) {
this._isClientOpen = open
this.isClientOpenAndUnlocked = this.getState().isUnlocked && open
this.detectTokensController.isOpen = open
}
/**
* A method for activating the retrieval of price data,
* which should only be fetched when the UI is visible.
* @private
* @param {boolean} active - True if price data should be getting fetched.
*/
set isClientOpenAndUnlocked (active) {
this.tokenRatesController.isActive = active
}
/**
* Creates RPC engine middleware for processing eth_signTypedData requests
*
* @param {Object} req - request object
* @param {Object} res - response object
* @param {Function} - next
* @param {Function} - end
*/
/**
* Adds a domain to the PhishingController whitelist
* @param {string} hostname the domain to whitelist
*/
whitelistPhishingDomain (hostname) {
return this.phishingController.bypass(hostname)
}
/**
* Locks MetaMask
*/
setLocked () {
return this.keyringController.setLocked()
}
}