Do insertions for top500 sites

In practice this won't work too well until we use the custom
brave/electron pre-built binaries which includes blocking scripts which do ads on pages

app/content/webviewPreload.js

@@ -27,3 +27,126 @@ ipc.on('zoom-reset', function () {
   browserZoomLevel = 0
   webFrame.setZoomLevel(browserZoomLevel)
 })
+
+/**
+ * Ensures a node replacement div is visible and has a proper zIndex
+ */
+function ensureNodeVisible (node) {
+  if (document.defaultView.getComputedStyle(node).display === 'none') {
+    node.style.display = ''
+  }
+  if (document.defaultView.getComputedStyle(node).zIndex === '-1') {
+    node.style.zIndex = ''
+  }
+}
+
+/**
+ * Determines the ad size which should be shown
+ * It will first check the node's size and try to infer that way.
+ * If that is not possible it will rely on the iframeData
+ *
+ * @param node The node that is being replaced
+ * @param iframeData The known preprocessed iframeData for that node
+ */
+function getAdSize (node, iframeData) {
+  var acceptableAdSizes = [
+    [728, 90],
+    [300, 250],
+    [160, 600],
+    [320, 50]
+  ]
+  for (var i = 0; i < acceptableAdSizes.length; i++) {
+    var adSize = acceptableAdSizes[i]
+    if (node.offsetWidth === adSize[0] && node.offsetHeight >= adSize[1] ||
+        node.offsetWidth >= adSize[0] && node.offsetHeight === adSize[1]) {
+      return adSize
+    }
+  }
+
+  if (iframeData) {
+    return [iframeData.width, iframeData.height]
+  }
+
+  return null
+}
+
+/**
+ * Processes a single node which is an ad
+ *
+ * @param node The node of the ad to process
+ * @param iframeData The iframe data of the node to process from the slimerJS bot
+ * @param placeholderUrl The vault URL with encoded user ID and session ID to use
+ */
+function processAdNode (node, iframeData, placeholderUrl) {
+  if (!node) {
+    return
+  }
+
+  var adSize = getAdSize(node, iframeData)
+  // Could not determine the ad size, so just skip this replacement
+  if (!adSize) {
+    return
+  }
+  var srcUrl = placeholderUrl + '&width=' + encodeURIComponent(adSize[0]) + '&height=' + encodeURIComponent(adSize[1])
+  if (node.tagName === 'IFRAME') {
+    node.src = srcUrl
+  } else {
+    while (node.firstChild) {
+      node.removeChild(node.firstChild)
+    }
+    var iframe = document.createElement('iframe')
+    iframe.style.padding = 0
+    iframe.style.border = 0
+    iframe.style.margin = 0
+    iframe.style.width = adSize[0] + 'px'
+    iframe.style.height = adSize[1] + 'px'
+    iframe.src = srcUrl
+    node.appendChild(iframe)
+    ensureNodeVisible(node)
+    if (node.parentNode) {
+      ensureNodeVisible(node.parentNode)
+      if (node.parentNode) {
+        ensureNodeVisible(node.parentNode.parentNode)
+      }
+    }
+  }
+}
+
+// Fires when the browser has ad replacement information to give
+ipc.on('set-ad-div-candidates', function (e, adDivCandidates, placeholderUrl) {
+  // Keep a lookup for skipped common elements
+  var fallbackNodeDataForCommon = {}
+
+  // Process all of the specific ad information for this page
+  adDivCandidates.forEach(function (iframeData) {
+    var selector = '[id="' + iframeData.replaceId + '"]'
+    var node = document.querySelector(selector)
+    if (!node) {
+      return
+    }
+
+    // Skip over known common elements
+    if (iframeData.replaceId.startsWith('google_ads_iframe_') ||
+        iframeData.replaceId.endsWith('__container__')) {
+      fallbackNodeDataForCommon[node.id] = iframeData
+      return
+    }
+
+    // Find the node and process it
+    processAdNode(document.querySelector(selector), iframeData, placeholderUrl)
+  })
+
+  // Common selectors which could be on every page
+  var commonSelectors = [
+    '[id^="google_ads_iframe_"][id$="__container__"]'
+  ]
+  commonSelectors.forEach(commonSelector => {
+    var nodes = document.querySelectorAll(commonSelector)
+    if (!nodes) {
+      return
+    }
+    Array.from(nodes).forEach(node => {
+      processAdNode(node, fallbackNodeDataForCommon[node.id], placeholderUrl)
+    })
+  })
+})

js/components/frame.js

@@ -7,6 +7,10 @@ const ReactDOM = require('react-dom')
 const AppActions = require('../actions/appActions')
 const ImmutableComponent = require('./immutableComponent')
 const cx = require('../lib/classSet.js')
+const uuid = require('node-uuid')
+
+import adInfo from '../data/adInfo.js'
+import Config from '../constants/config.js'
 
 class Frame extends ImmutableComponent {
   constructor () {
@@ -17,6 +21,10 @@ class Frame extends ImmutableComponent {
     return ReactDOM.findDOMNode(this.refs.webview)
   }
 
+  componentDidMount () {
+    this.addEventListeners()
+  }
+
   componentDidUpdate () {
     const activeShortcut = this.props.frame.get('activeShortcut')
     switch (activeShortcut) {
@@ -48,62 +56,67 @@ class Frame extends ImmutableComponent {
     }
   }
 
-  componentDidMount () {
+  addEventListeners () {
     this.webview.addEventListener('new-window', (e) => {
-      console.log('new window: ' + e.url)
       AppActions.newFrame({
         location: e.url
       })
     })
     this.webview.addEventListener('close', () => {
-      console.log('close window')
     })
     this.webview.addEventListener('enter-html-full-screen', () => {
-      console.log('enter html full screen')
     })
     this.webview.addEventListener('leave-html-full-screen', () => {
-      console.log('leave html full screen')
     })
     this.webview.addEventListener('page-favicon-updated', () => {
-      console.log('favicon updated')
     })
     this.webview.addEventListener('page-title-set', ({title}) => {
-      console.log('title set', title)
       AppActions.setFrameTitle(this.props.frame, title)
     })
-    this.webview.addEventListener('dom-ready', () => {
-      console.log('dom is ready')
+    this.webview.addEventListener('dom-ready', (event) => {
+      this.insertAds(event.target.src)
     })
     this.webview.addEventListener('load-commit', (event) => {
       if (event.isMainFrame) {
         let key = this.props.frame.get('key')
-        console.log('load committed', event.url, key)
         AppActions.setLocation(event.url, key)
       }
     })
     this.webview.addEventListener('did-start-loading', () => {
-      console.log('spinner start loading')
       AppActions.onWebviewLoadStart(
         this.props.frame)
     })
     this.webview.addEventListener('did-stop-loading', () => {
-      console.log('did stop loading')
       AppActions.onWebviewLoadEnd(
         this.props.frame,
         this.webview.getURL())
     })
     this.webview.addEventListener('did-fail-load', () => {
-      console.log('did fail load')
     })
     this.webview.addEventListener('did-finish-load', () => {
-      console.log('did finish load')
       AppActions.updateBackForwardState(
         this.props.frame,
         this.webview.canGoBack(),
         this.webview.canGoForward())
     })
   }
 
+  insertAds (currentLocation) {
+    let host = new window.URL(currentLocation).hostname.replace('www.', '')
+    let adDivCandidates = adInfo[host]
+    if (adDivCandidates) {
+      // TODO: Use a real user ID and sessionID
+      const userId = uuid.v4()
+      const sessionId = uuid.v4()
+
+      const placeholderUrl = Config.vault.replacementUrl(userId) + '?' + [
+        `sessionId=${sessionId}`,
+        `tagName=IFRAME`
+      ].join('&')
+      this.webview.send('set-ad-div-candidates', adDivCandidates, placeholderUrl)
+    }
+  }
+
   goBack () {
     this.webview.goBack()
   }

js/constants/config.js

@@ -2,7 +2,11 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-var vaultHost = process.env.VAULT_HOST || 'http://localhost:3000'
+// VAULT_HOST can be set to:
+// https://vault.brave.com for production
+// https://vault-staging.brave.com for a dev build
+// http://localhost:3000 for production
+var vaultHost = process.env.VAULT_HOST || 'https://vault-staging.brave.com'
 
 export default {
   zoom: {

package.json

@@ -60,6 +60,7 @@
     "less-loader": "^2.2.1",
     "mocha": "^2.3.4",
     "node-libs-browser": "^0.5.3",
+    "node-uuid": "^1.4.7",
     "pre-commit": "^1.1.2",
     "spectron": "^0.35.3",
     "standard": "^5.4.1",
@@ -73,6 +74,7 @@
       "Brave-darwin-x64/**",
       "less/**",
       "res/**",
+      "js/data/**",
       "dist/**",
       "doc/**",
       "public/**",