Hook MetaMaskController up with phishing detection page

app/scripts/contentscript.js

@@ -1,6 +1,7 @@
 const fs = require('fs')
 const path = require('path')
 const pump = require('pump')
+const querystring = require('querystring')
 const LocalMessageDuplexStream = require('post-message-stream')
 const PongStream = require('ping-pong-stream/pong')
 const ObjectMultiplex = require('obj-multiplex')
@@ -199,5 +200,8 @@ function blacklistedDomainCheck () {
 function redirectToPhishingWarning () {
   console.log('MetaMask - routing to Phishing Warning component')
   const extensionURL = extension.runtime.getURL('phishing.html')
-  window.location.href = extensionURL + '#' + window.location.hostname
+  window.location.href = `${extensionURL}#${querystring.stringify({
+    hostname: window.location.hostname,
+    href: window.location.href,
+  })}`
 }

app/scripts/phishing-detect.js

@@ -1,5 +1,59 @@
 window.onload = function() {
   if (window.location.pathname === '/phishing.html') {
-      document.getElementById('esdbLink').innerHTML = '<b>To read more about this scam, navigate to: <a href="https://etherscamdb.info/domain/' + window.location.hash.substring(1) + '"> https://etherscamdb.info/domain/' + window.location.hash.substring(1) + '</a></b>'
+    const {hostname} = parseHash()
+    document.getElementById('esdbLink').innerHTML = '<b>To read more about this scam, navigate to: <a href="https://etherscamdb.info/domain/' + hostname + '"> https://etherscamdb.info/domain/' + hostname + '</a></b>'
   }
 }
+
+const querystring = require('querystring')
+const dnode = require('dnode')
+const { EventEmitter } = require('events')
+const PortStream = require('extension-port-stream')
+const extension = require('extensionizer')
+const setupMultiplex = require('./lib/stream-utils.js').setupMultiplex
+const { getEnvironmentType } = require('./lib/util')
+const ExtensionPlatform = require('./platforms/extension')
+
+document.addEventListener('DOMContentLoaded', start)
+
+function start () {
+  const windowType = getEnvironmentType(window.location.href)
+
+  global.platform = new ExtensionPlatform()
+  global.METAMASK_UI_TYPE = windowType
+
+  const extensionPort = extension.runtime.connect({ name: windowType })
+  const connectionStream = new PortStream(extensionPort)
+  const mx = setupMultiplex(connectionStream)
+  setupControllerConnection(mx.createStream('controller'), (err, metaMaskController) => {
+    if (err) {
+      return
+    }
+
+    const suspect = parseHash()
+    const unsafeContinue = () => {
+      window.location.href = suspect.href
+    }
+    const continueLink = document.getElementById('unsafe-continue')
+    continueLink.addEventListener('click', () => {
+      metaMaskController.whitelistPhishingDomain(suspect.hostname)
+      unsafeContinue()
+    })
+  })
+}
+
+function setupControllerConnection (connectionStream, cb) {
+  const eventEmitter = new EventEmitter()
+  const accountManagerDnode = dnode({
+    sendUpdate (state) {
+      eventEmitter.emit('update', state)
+    },
+  })
+  connectionStream.pipe(accountManagerDnode).pipe(connectionStream)
+  accountManagerDnode.once('remote', (accountManager) => cb(null, accountManager))
+}
+
+function parseHash () {
+  const hash = window.location.hash.substring(1)
+  return querystring.parse(hash)
+}