From 8087edaf9c446fd39450be7a9dbb056ac08cf013 Mon Sep 17 00:00:00 2001
From: "a.hubert" <a.hubert@criteo.com>
Date: Fri, 1 Dec 2017 11:52:19 +0100
Subject: [PATCH] Implement fastbid in prebid 1.0 criteo adapter

---
 modules/criteoBidAdapter.js                | 30 +++++++++++++++++++---
 test/spec/modules/criteoBidAdapter_spec.js | 27 +++++++++++--------
 2 files changed, 43 insertions(+), 14 deletions(-)

diff --git a/modules/criteoBidAdapter.js b/modules/criteoBidAdapter.js
index 12d37be8a72..2b8c38275bf 100755
--- a/modules/criteoBidAdapter.js
+++ b/modules/criteoBidAdapter.js
@@ -1,14 +1,16 @@
+import { loadScript } from 'src/adloader';
 import { registerBidder } from 'src/adapters/bidderFactory';
 import { parse } from 'src/url';
 import * as utils from 'src/utils';
 
+const ADAPTER_VERSION = 2;
 const BIDDER_CODE = 'criteo';
 const CDB_ENDPOINT = '//bidder.criteo.com/cdb';
-const PROFILE_ID = 207;
-const ADAPTER_VERSION = 2;
 const INTEGRATION_MODES = {
   'amp': 1,
 };
+const PROFILE_ID = 207;
+const PUBLISHER_TAG_URL = '//static.criteo.net/js/ld/publishertag.prebid.js';
 
 /** @type {BidderSpec} */
 export const spec = {
@@ -31,6 +33,11 @@ export const spec = {
     let url;
     let data;
 
+    // If publisher tag not already loaded try to get it from fast bid else load it
+    if (typeof Criteo === 'undefined' && !tryGetCriteoFastBid()) {
+      loadScript(PUBLISHER_TAG_URL);
+    }
+
     if (typeof Criteo !== 'undefined') {
       const adapter = new Criteo.PubTag.Adapters.Prebid(PROFILE_ID, ADAPTER_VERSION, bidRequests, bidderRequest);
       url = adapter.buildCdbUrl();
@@ -57,7 +64,7 @@ export const spec = {
 
     const bids = [];
 
-    if (response.body.slots && utils.isArray(response.body.slots)) {
+    if (response.body && response.body.slots && utils.isArray(response.body.slots)) {
       response.body.slots.forEach(slot => {
         const bid = {
           requestId: slot.impid,
@@ -157,4 +164,21 @@ function buildCdbRequest(context, bidRequests) {
   return request;
 }
 
+/**
+ * @return {boolean}
+ */
+function tryGetCriteoFastBid() {
+  let success = false;
+  try {
+    const fastBid = localStorage.getItem('criteo_fast_bid');
+    if (fastBid !== null) {
+      eval(fastBid); // eslint-disable-line no-eval
+      success = true;
+    }
+  } catch (e) {
+    // Unable to get fast bid
+  }
+  return success;
+}
+
 registerBidder(spec);
diff --git a/test/spec/modules/criteoBidAdapter_spec.js b/test/spec/modules/criteoBidAdapter_spec.js
index d17efe9fe2b..6fce3f16be3 100755
--- a/test/spec/modules/criteoBidAdapter_spec.js
+++ b/test/spec/modules/criteoBidAdapter_spec.js
@@ -61,10 +61,11 @@ describe('The Criteo bidding adapter', () => {
         },
       ];
       const request = spec.buildRequests(bidRequests);
-      expect(request.url).to.equal('//bidder.criteo.com/cdb');
+      expect(request.url).to.match(/^\/\/bidder\.criteo\.com\/cdb\?profileId=207&av=2&cb=\d/);
       expect(request.method).to.equal('POST');
+      const ortbRequest = request.data;
       expect(ortbRequest.publisher.url).to.equal(utils.getTopWindowUrl());
-      expect(ortbRequest.slots).to.have.lengthOf(2);
+      expect(ortbRequest.slots).to.have.lengthOf(1);
       expect(ortbRequest.slots[0].impid).to.equal('bid-123');
       expect(ortbRequest.slots[0].transactionid).to.equal('transaction-123');
       expect(ortbRequest.slots[0].sizes).to.have.lengthOf(1);
@@ -85,8 +86,9 @@ describe('The Criteo bidding adapter', () => {
         },
       ];
       const request = spec.buildRequests(bidRequests);
-      expect(request.url).to.equal('//bidder.criteo.com/cdb');
+      expect(request.url).to.match(/^\/\/bidder\.criteo\.com\/cdb\?profileId=207&av=2&cb=\d/);
       expect(request.method).to.equal('POST');
+      const ortbRequest = request.data;
       expect(ortbRequest.publisher.url).to.equal(utils.getTopWindowUrl());
       expect(ortbRequest.publisher.networkid).to.equal(456);
       expect(ortbRequest.slots).to.have.lengthOf(1);
@@ -119,8 +121,9 @@ describe('The Criteo bidding adapter', () => {
         },
       ];
       const request = spec.buildRequests(bidRequests);
-      expect(request.url).to.equal('//bidder.criteo.com/cdb');
+      expect(request.url).to.match(/^\/\/bidder\.criteo\.com\/cdb\?profileId=207&av=2&cb=\d/);
       expect(request.method).to.equal('POST');
+      const ortbRequest = request.data;
       expect(ortbRequest.publisher.url).to.equal(utils.getTopWindowUrl());
       expect(ortbRequest.publisher.networkid).to.equal(456);
       expect(ortbRequest.slots).to.have.lengthOf(2);
@@ -145,13 +148,15 @@ describe('The Criteo bidding adapter', () => {
 
     it('should properly parse a bid response', () => {
       const response = {
-        slots: [{
-          impid: 'test-requestId',
-          cpm: 1.23,
-          ad: 'test-ad',
-          width: 728,
-          height: 90,
-        }],
+        body: {
+          slots: [{
+            impid: 'test-requestId',
+            cpm: 1.23,
+            creative: 'test-ad',
+            width: 728,
+            height: 90,
+          }],
+        },
       };
       const bids = spec.interpretResponse(response, null);
       expect(bids).to.have.lengthOf(1);