put background in service worker

1 files changed, 203 insertions, 0 deletions

diff --git a/library/sw-core.js b/library/sw-core.js
new file mode 100644
index 000000000..e018dff0f
--- /dev/null
+++ b/library/sw-core.js
@@ -0,0 +1,203 @@
+global.window = global
+const SWGlobal = self
+const urlUtil = require('url')
+const endOfStream = require('end-of-stream')
+const asyncQ = require('async-q')
+const pipe = require('pump')
+// const ParentStream = require('iframe-stream').ParentStream
+const setupMultiplex = require('../app/scripts/lib/stream-utils.js').setupMultiplex
+const PortStream = require('../app/scripts/lib/port-stream.js')
+// const notification = require('../app/scripts/lib/notifications.js')
+
+const DbController = require('./controllers/index-db-controller')
+
+// // all this will go in service worker
+const MetamaskController = require('../app/scripts/metamask-controller')
+// const extension = require('../app/scripts/lib/extension')
+// const LocalStorageStore = require('obs-store/lib/localStorage')
+const storeTransform = require('obs-store/lib/transform')
+const Migrator = require('../app/scripts/lib/migrator/')
+const migrations = require('../app/scripts/migrations/')
+const firstTimeState = require('../app/scripts/first-time-state')
+
+const STORAGE_KEY = 'metamask-config'
+const METAMASK_DEBUG = 'GULP_METAMASK_DEBUG'
+let popupIsOpen = false
+
+self.addEventListener('install', function(event) {
+  event.waitUntil(self.skipWaiting())
+})
+self.addEventListener('activate', function(event) {
+  event.waitUntil(self.clients.claim())
+})
+
+self.onsync = function (syncEvent) {
+// What is done when a sync even is fired
+  console.log('inside:sync')
+  var focused
+  self.clients.matchAll()
+  .then(clients => {
+    clients.forEach(function(client) {
+
+    })
+  })
+}
+
+
+
+console.log('inside:open')
+
+
+// // state persistence
+let diskStore
+const dbController = new DbController({
+  key: STORAGE_KEY,
+  global: self,
+  version: 6,
+  initialState: {
+    dataStore: {
+      meta: 2,
+      data: firstTimeState,
+    },
+  },
+})
+asyncQ.waterfall([
+  () => loadStateFromPersistence(),
+  (initState) => setupController(initState),
+])
+.then(() => console.log('MetaMask initialization complete.'))
+.catch((err) => {
+  console.log('WHILE SETTING UP:')
+  console.error(err)
+})
+
+// initialization flow
+
+//
+// State and Persistence
+//
+function loadStateFromPersistence() {
+  // migrations
+  let migrator = new Migrator({ migrations })
+  const initialState = migrator.generateInitialState(firstTimeState)
+  dbController.initialState = initialState
+  return dbController.open()
+  .then((stuff) => {
+    return dbController.get('dataStore')
+  })
+  .then((data) => {
+    if (!data) {
+      return dbController._add('dataStore', initialState)
+      .then(() => dbController.get('dataStore'))
+      .then((versionedData) => Promise.resolve(versionedData.data))
+    }
+
+    return Promise.resolve(data.data)
+  })
+  .catch((err) => console.error(err))
+
+  // return asyncQ.waterfall([
+  //   // read from disk
+  //   () => Promise.resolve(diskStore || initialState),
+  //   // migrate data
+  //   (versionedData) => migrator.migrateData(versionedData),
+  //   // write to disk
+  //   (versionedData) => {
+  //     diskStore.put(versionedData)
+  //     return Promise.resolve(versionedData)
+  //   },
+  //   // resolve to just data
+  //   (versionedData) => Promise.resolve(versionedData.data),
+  // ])
+}
+
+function setupController (initState, client) {
+
+  //
+  // MetaMask Controller
+  //
+
+  const controller = new MetamaskController({
+    // User confirmation callbacks:
+    showUnconfirmedMessage: triggerUi,
+    unlockAccountMessage: triggerUi,
+    showUnapprovedTx: triggerUi,
+    // initial state
+    initState,
+  })
+  global.metamaskController = controller
+
+  // setup state persistence
+  pipe(
+    controller.store,
+    storeTransform(versionifyData),
+    diskStore
+  )
+
+  function versionifyData(state) {
+    let versionedData = diskStore.getState()
+    versionedData.data = state
+    return versionedData
+  }
+
+  //
+  // connect to other contexts
+  //
+  var connectionStream //= new ParentStream()
+  SWGlobal.onmessage = (message) => {
+
+    debugger
+    connectRemote(connectionStream, message.origin)
+  }
+
+  connectRemote(connectionStream, client.origin)
+
+  function connectRemote (connectionStream, originDomain) {
+    var isMetaMaskInternalProcess = (originDomain === 'http://localhost:9001')
+    if (isMetaMaskInternalProcess) {
+      // communication with popup
+      controller.setupTrustedCommunication(connectionStream, 'MetaMask')
+    } else {
+      // communication with page
+      setupUntrustedCommunication(connectionStream, originDomain)
+    }
+  }
+
+  function setupUntrustedCommunication (connectionStream, originDomain) {
+    // setup multiplexing
+    var mx = setupMultiplex(connectionStream)
+    // connect features
+    controller.setupProviderConnection(mx.createStream('provider'), originDomain)
+    controller.setupPublicConfig(mx.createStream('publicConfig'))
+  }
+
+  function setupTrustedCommunication (connectionStream, originDomain) {
+    // setup multiplexing
+    var mx = setupMultiplex(connectionStream)
+    // connect features
+    controller.setupProviderConnection(mx.createStream('provider'), originDomain)
+  }
+  //
+  // User Interface setup
+  //
+  return Promise.resolve()
+
+}
+
+// // //
+// // // Etc...
+// // //
+
+// // // popup trigger
+function triggerUi () {
+  if (!popupIsOpen) notification.show()
+}
+
+// function getParentHref(){
+//   try {
+//     var parentLocation = window.parent.location
+//     return parentLocation.hostname + ':' + parentLocation.port
+//   } catch (err) {
+//     return 'unknown'
+//   }
+// }