const urlUtil = require('url') const endOfStream = require('end-of-stream') const pump = require('pump') const debounce = require('debounce-stream') const log = require('loglevel') const extension = require('extensionizer') const LocalStorageStore = require('obs-store/lib/localStorage') const LocalStore = require('./lib/local-store') const storeTransform = require('obs-store/lib/transform') const asStream = require('obs-store/lib/asStream') const ExtensionPlatform = require('./platforms/extension') const Migrator = require('./lib/migrator/') const migrations = require('./migrations/') const PortStream = require('./lib/port-stream.js') const NotificationManager = require('./lib/notification-manager.js') const MetamaskController = require('./metamask-controller') const firstTimeState = require('./first-time-state') const setupRaven = require('./lib/setupRaven') const reportFailedTxToSentry = require('./lib/reportFailedTxToSentry') const setupMetamaskMeshMetrics = require('./lib/setupMetamaskMeshMetrics') const EdgeEncryptor = require('./edge-encryptor') const getFirstPreferredLangCode = require('./lib/get-first-preferred-lang-code') const STORAGE_KEY = 'metamask-config' const METAMASK_DEBUG = process.env.METAMASK_DEBUG window.log = log log.setDefaultLevel(METAMASK_DEBUG ? 'debug' : 'warn') const platform = new ExtensionPlatform() const notificationManager = new NotificationManager() global.METAMASK_NOTIFIER = notificationManager // setup sentry error reporting const release = platform.getVersion() const raven = setupRaven({ release }) // browser check if it is Edge - https://stackoverflow.com/questions/9847580/how-to-detect-safari-chrome-ie-firefox-and-opera-browser // Internet Explorer 6-11 const isIE = !!document.documentMode // Edge 20+ const isEdge = !isIE && !!window.StyleMedia let popupIsOpen = false let notificationIsOpen = false let openMetamaskTabsIDs = {} // state persistence const diskStore = new LocalStorageStore({ storageKey: STORAGE_KEY }) const localStore = new LocalStore() let versionedData // initialization flow initialize().catch(log.error) // setup metamask mesh testing container setupMetamaskMeshMetrics() async function initialize () { const initState = await loadStateFromPersistence() const initLangCode = await getFirstPreferredLangCode() await setupController(initState, initLangCode) log.debug('MetaMask initialization complete.') } // // State and Persistence // async function loadStateFromPersistence () { // migrations const migrator = new Migrator({ migrations }) // read from disk // first from preferred, async API: versionedData = (await localStore.get()) || diskStore.getState() || migrator.generateInitialState(firstTimeState) // migrate data versionedData = await migrator.migrateData(versionedData) if (!versionedData) { throw new Error('MetaMask - migrator returned undefined') } // write to disk if (localStore.isSupported) localStore.set(versionedData) // return just the data return versionedData.data } function setupController (initState, initLangCode) { // // MetaMask Controller // const controller = new MetamaskController({ // User confirmation callbacks: showUnconfirmedMessage: triggerUi, unlockAccountMessage: triggerUi, showUnapprovedTx: triggerUi, // initial state initState, // initial locale code initLangCode, // platform specific api platform, encryptor: isEdge ? new EdgeEncryptor() : undefined, }) global.metamaskController = controller // report failed transactions to Sentry controller.txController.on(`tx:status-update`, (txId, status) => { if (status !== 'failed') return const txMeta = controller.txController.txStateManager.getTx(txId) reportFailedTxToSentry({ raven, txMeta }) }) // setup state persistence pump( asStream(controller.store), debounce(1000), storeTransform(versionifyData), storeTransform(syncDataWithExtension), (error) => { log.error('pump hit error', error) } ) function versionifyData (state) { versionedData.data = state return versionedData } function syncDataWithExtension(state) { if (localStore.isSupported) { localStore.set(state) .catch((err) => { log.error('error setting state in local store:', err) }) } return state } // // connect to other contexts // extension.runtime.onConnect.addListener(connectRemote) function connectRemote (remotePort) { const isMetaMaskInternalProcess = remotePort.name === 'popup' || remotePort.name === 'notification' const portStream = new PortStream(remotePort) if (isMetaMaskInternalProcess) { // communication with popup popupIsOpen = popupIsOpen || (remotePort.name === 'popup') controller.setupTrustedCommunication(portStream, 'MetaMask') // record popup as closed if (remotePort.sender.url.match(/home.html$/)) { openMetamaskTabsIDs[remotePort.sender.tab.id] = true } if (remotePort.name === 'popup') { endOfStream(portStream, () => { popupIsOpen = false if (remotePort.sender.url.match(/home.html$/)) { openMetamaskTabsIDs[remotePort.sender.tab.id] = false } }) } if (remotePort.name === 'notification') { endOfStream(portStream, () => { notificationIsOpen = false }) } } else { // communication with page const originDomain = urlUtil.parse(remotePort.sender.url).hostname controller.setupUntrustedCommunication(portStream, originDomain) } } // // User Interface setup // updateBadge() controller.txController.on('update:badge', updateBadge) controller.messageManager.on('updateBadge', updateBadge) controller.personalMessageManager.on('updateBadge', updateBadge) // plugin badge text function updateBadge () { var label = '' var unapprovedTxCount = controller.txController.getUnapprovedTxCount() var unapprovedMsgCount = controller.messageManager.unapprovedMsgCount var unapprovedPersonalMsgs = controller.personalMessageManager.unapprovedPersonalMsgCount var unapprovedTypedMsgs = controller.typedMessageManager.unapprovedTypedMessagesCount var count = unapprovedTxCount + unapprovedMsgCount + unapprovedPersonalMsgs + unapprovedTypedMsgs if (count) { label = String(count) } extension.browserAction.setBadgeText({ text: label }) extension.browserAction.setBadgeBackgroundColor({ color: '#506F8B' }) } return Promise.resolve() } // // Etc... // // popup trigger function triggerUi () { extension.tabs.query({ active: true }, (tabs) => { const currentlyActiveMetamaskTab = tabs.find(tab => openMetamaskTabsIDs[tab.id]) if (!popupIsOpen && !currentlyActiveMetamaskTab && !notificationIsOpen) notificationManager.showPopup() notificationIsOpen = true }) } // On first install, open a window to MetaMask website to how-it-works. extension.runtime.onInstalled.addListener(function (details) { if ((details.reason === 'install') && (!METAMASK_DEBUG)) { extension.tabs.create({url: 'https://metamask.io/#how-it-works'}) } })