adds jcsi param

Author: Susan Thai

modules/gumgumBidAdapter.js

@@ -13,6 +13,71 @@ const TIME_TO_LIVE = 60
 let browserParams = {};
 let pageViewId = null
 
+function hasTopAccess () {
+  var hasTopAccess = false
+  try { hasTopAccess = !!top.document } catch (e) {}
+  return hasTopAccess
+}
+
+function isInSafeFrame () {
+  if (window.$sf) return window.$sf
+  else if (hasTopAccess() && window !== top) return isInSafeFrame(window.parent)
+  return null
+}
+
+function getGoogleTag (windowRef) {
+  try {
+    const w = windowRef || window
+    var GOOGLETAG = null
+    if ('googletag' in w) {
+      GOOGLETAG = w.googletag
+    } else if (w !== top) {
+      GOOGLETAG = getGoogleTag(w.parent)
+    }
+    return GOOGLETAG
+  } catch (error) {
+    utils.logError('Error getting googletag ', error)
+    return null
+  }
+}
+
+function getAMPContext (windowRef) {
+  const w = windowRef || window
+  var context = null
+  var nameJSON = null
+  if (utils.isPlainObject(w.context)) {
+    context = w.context
+  } else {
+    nameJSON = JSON.parse(w.name)
+    if (utils.isPlainObject(nameJSON)) {
+      context = nameJSON._context || (nameJSON.attributes ? nameJSON.attributes._context : null)
+    }
+    if (utils.isPlainObject(w.AMP_CONTEXT_DATA)) {
+      context = w.AMP_CONTEXT_DATA
+    }
+  }
+  return context
+}
+
+function getJCSI () {
+  const entrypointOffset = 7
+  const inFrame = (window.top && window.top !== window)
+  const frameType = (!inFrame ? 1 : (isInSafeFrame() ? 2 : (hasTopAccess() ? 3 : 4)))
+  const context = []
+  if (getAMPContext()) {
+    context.push(1)
+  }
+  if (getGoogleTag()) {
+    context.push(2)
+  }
+  const jcsi = {
+    ep: entrypointOffset,
+    fc: frameType,
+    ctx: context
+  }
+  return JSON.stringify(jcsi)
+}
+
 // TODO: potential 0 values for browserParams sent to ad server
 function _getBrowserParams() {
   let topWindow
@@ -40,7 +105,8 @@ function _getBrowserParams() {
     sh: topScreen.height,
     pu: topUrl,
     ce: utils.cookiesAreEnabled(),
-    dpr: topWindow.devicePixelRatio || 1
+    dpr: topWindow.devicePixelRatio || 1,
+    jcsi: getJCSI()
   }
   ggad = (topUrl.match(/#ggad=(\w+)$/) || [0, 0])[1]
   if (ggad) {