PBjs Core : send native targetings for ortb response

src/auction.js

@@ -76,7 +76,7 @@ import {
   timestamp
 } from './utils.js';
 import {getPriceBucketString} from './cpmBucketManager.js';
-import {getNativeTargeting} from './native.js';
+import {getNativeTargeting, toLegacyResponse} from './native.js';
 import {getCacheUrl, store} from './videoCache.js';
 import {Renderer} from './Renderer.js';
 import {config} from './config.js';
@@ -462,9 +462,14 @@ export function auctionCallbacks(auctionDone, auctionInstance, {index = auctionM
     handleBidResponse(adUnitCode, bid, (done) => {
       let bidResponse = getPreparedBidForAuction(bid);
 
-      if (bidResponse.mediaType === 'video') {
+      if (bidResponse.mediaType === VIDEO) {
         tryAddVideoBid(auctionInstance, bidResponse, done);
       } else {
+        if (FEATURES.NATIVE && bidResponse.native != null && typeof bidResponse.native === 'object') {
+          // NOTE: augment bidResponse.native even if bidResponse.mediaType !== NATIVE; it's possible
+          // to treat banner responses as native
+          addLegacyFieldsIfNeeded(bidResponse);
+        }
         addBidToAuction(auctionInstance, bidResponse);
         done();
       }
@@ -593,6 +598,17 @@ function tryAddVideoBid(auctionInstance, bidResponse, afterBidAdded, {index = au
   }
 }
 
+// Native bid response might be in ortb2 format - adds legacy field for backward compatibility
+const addLegacyFieldsIfNeeded = (bidResponse) => {
+  const nativeOrtbRequest = auctionManager.index.getAdUnit(bidResponse)?.nativeOrtbRequest;
+  const nativeOrtbResponse = bidResponse.native?.ortb
+
+  if (nativeOrtbRequest && nativeOrtbResponse) {
+    const legacyResponse = toLegacyResponse(nativeOrtbResponse, nativeOrtbRequest);
+    Object.assign(bidResponse.native, legacyResponse);
+  }
+}
+
 const storeInCache = (batch) => {
   store(batch.map(entry => entry.bidResponse), function (error, cacheIds) {
     cacheIds.forEach((cacheId, i) => {

src/native.js

@@ -23,7 +23,7 @@ export const NATIVE_TARGETING_KEYS = Object.keys(CONSTANTS.NATIVE_KEYS).map(
   key => CONSTANTS.NATIVE_KEYS[key]
 );
 
-const IMAGE = {
+export const IMAGE = {
   ortb: {
     ver: '1.2',
     assets: [
@@ -385,26 +385,14 @@ export function getNativeTargeting(bid, {index = auctionManager.index} = {}) {
   return keyValues;
 }
 
-const getNativeRequest = (bidResponse) => auctionManager.index.getAdUnit(bidResponse)?.nativeOrtbRequest;
-
-function assetsMessage(data, adObject, keys, {getNativeReq = getNativeRequest} = {}) {
+function assetsMessage(data, adObject, keys) {
   const message = {
     message: 'assetResponse',
     adId: data.adId,
   };
 
-  // Pass to Prebid Universal Creative all assets, the legacy ones + the ortb ones (under ortb property)
-  const ortbRequest = getNativeReq(adObject);
   let nativeResp = adObject.native;
-  const ortbResponse = adObject.native?.ortb;
-  let legacyResponse = {};
-  if (ortbRequest && ortbResponse) {
-    legacyResponse = toLegacyResponse(ortbResponse, ortbRequest);
-    nativeResp = {
-      ...adObject.native,
-      ...legacyResponse
-    };
-  }
+
   if (adObject.native.ortb) {
     message.ortb = adObject.native.ortb;
   }
@@ -435,13 +423,13 @@ function assetsMessage(data, adObject, keys, {getNativeReq = getNativeRequest} =
  * Constructs a message object containing asset values for each of the
  * requested data keys.
  */
-export function getAssetMessage(data, adObject, {getNativeReq = getNativeRequest} = {}) {
+export function getAssetMessage(data, adObject) {
   const keys = data.assets.map((k) => getKeyByValue(CONSTANTS.NATIVE_KEYS, k));
-  return assetsMessage(data, adObject, keys, {getNativeReq});
+  return assetsMessage(data, adObject, keys);
 }
 
-export function getAllAssetsMessage(data, adObject, {getNativeReq = getNativeRequest} = {}) {
-  return assetsMessage(data, adObject, null, {getNativeReq});
+export function getAllAssetsMessage(data, adObject) {
+  return assetsMessage(data, adObject, null);
 }
 
 /**
@@ -749,7 +737,7 @@ export function toOrtbNativeResponse(legacyResponse, ortbRequest) {
  * @param {*} ortbRequest the ortb request, useful to match ids.
  * @returns an object containing the response in legacy native format: { title: "this is a title", image: ... }
  */
-function toLegacyResponse(ortbResponse, ortbRequest) {
+export function toLegacyResponse(ortbResponse, ortbRequest) {
   const legacyResponse = {};
   const requestAssets = ortbRequest?.assets || [];
   legacyResponse.clickUrl = ortbResponse.link.url;
@@ -764,6 +752,29 @@ function toLegacyResponse(ortbResponse, ortbRequest) {
       legacyResponse[PREBID_NATIVE_DATA_KEYS_TO_ORTB_INVERSE[NATIVE_ASSET_TYPES_INVERSE[requestAsset.data.type]]] = asset.data.value;
     }
   }
+
+  // Handle trackers
+  legacyResponse.impressionTrackers = [];
+  let jsTrackers = [];
+
+  if (ortbRequest?.imptrackers) {
+    legacyResponse.impressionTrackers.push(...ortbRequest.imptrackers);
+  }
+  for (const eventTracker of ortbResponse?.eventtrackers || []) {
+    if (eventTracker.event === TRACKER_EVENTS.impression && eventTracker.method === TRACKER_METHODS.img) {
+      legacyResponse.impressionTrackers.push(eventTracker.url);
+    }
+    if (eventTracker.event === TRACKER_EVENTS.impression && eventTracker.method === TRACKER_METHODS.js) {
+      jsTrackers.push(eventTracker.url);
+    }
+  }
+
+  jsTrackers = jsTrackers.map(url => `<script async src="${url}"></script>`);
+  if (ortbResponse?.jstracker) { jsTrackers.push(ortbResponse.jstracker); }
+  if (jsTrackers.length) {
+    legacyResponse.javascriptTrackers = jsTrackers.join('\n');
+  }
+
   return legacyResponse;
 }
 

test/spec/auctionmanager_spec.js

@@ -22,6 +22,7 @@ import 'modules/debugging/index.js' // some tests look for debugging side effect
 import {AuctionIndex} from '../../src/auctionIndex.js';
 import {expect} from 'chai';
 import {deepClone} from '../../src/utils.js';
+import { IMAGE as ortbNativeRequest } from 'src/native.js';
 
 var assert = require('assert');
 
@@ -1276,6 +1277,81 @@ describe('auctionmanager.js', function () {
     });
   });
 
+  if (FEATURES.NATIVE) {
+    describe('addBidResponse native', function () {
+      let makeRequestsStub;
+      let ajaxStub;
+      let spec;
+      let auction;
+
+      beforeEach(function () {
+        makeRequestsStub = sinon.stub(adapterManager, 'makeBidRequests');
+        ajaxStub = sinon.stub(ajaxLib, 'ajaxBuilder').callsFake(mockAjaxBuilder);
+
+        const adUnits = [{
+          code: ADUNIT_CODE,
+          transactionId: ADUNIT_CODE,
+          bids: [
+            {bidder: BIDDER_CODE, params: {placementId: 'id'}},
+          ],
+          nativeOrtbRequest: ortbNativeRequest.ortb,
+          mediaTypes: { native: { type: 'image' } }
+        }];
+        auction = auctionModule.newAuction({adUnits, adUnitCodes: [ADUNIT_CODE], callback: function() {}, cbTimeout: 3000});
+        indexAuctions = [auction];
+        const createAuctionStub = sinon.stub(auctionModule, 'newAuction');
+        createAuctionStub.returns(auction);
+
+        spec = mockBidder(BIDDER_CODE);
+        registerBidder(spec);
+      });
+
+      afterEach(function () {
+        ajaxStub.restore();
+        auctionModule.newAuction.restore();
+        adapterManager.makeBidRequests.restore();
+      });
+
+      it('should add legacy fields to native response', function () {
+        let nativeBid = mockBid();
+        nativeBid.mediaType = 'native';
+        nativeBid.native = {
+          ortb: {
+            ver: '1.2',
+            assets: [
+              { id: 2, title: { text: 'Sample title' } },
+              { id: 4, data: { value: 'Sample body' } },
+              { id: 3, data: { value: 'Sample sponsoredBy' } },
+              { id: 1, img: { url: 'https://www.example.com/image.png', w: 200, h: 200 } },
+              { id: 5, img: { url: 'https://www.example.com/icon.png', w: 32, h: 32 } }
+            ],
+            link: { url: 'http://www.click.com' },
+            eventtrackers: [
+              { event: 1, method: 1, url: 'http://www.imptracker.com' },
+              { event: 1, method: 2, url: 'http://www.jstracker.com/file.js' }
+            ]
+          }
+        }
+
+        let bidRequest = mockBidRequest(nativeBid, { mediaType: { native: ortbNativeRequest } });
+        makeRequestsStub.returns([bidRequest]);
+
+        spec.interpretResponse.returns(nativeBid);
+        auction.callBids();
+
+        const addedBid = auction.getBidsReceived().pop();
+        assert.equal(addedBid.native.body, 'Sample body')
+        assert.equal(addedBid.native.title, 'Sample title')
+        assert.equal(addedBid.native.sponsoredBy, 'Sample sponsoredBy')
+        assert.equal(addedBid.native.clickUrl, 'http://www.click.com')
+        assert.equal(addedBid.native.image, 'https://www.example.com/image.png')
+        assert.equal(addedBid.native.icon, 'https://www.example.com/icon.png')
+        assert.equal(addedBid.native.impressionTrackers[0], 'http://www.imptracker.com')
+        assert.equal(addedBid.native.javascriptTrackers, '<script async src="http://www.jstracker.com/file.js"></script>')
+      });
+    });
+  }
+
   describe('getMediaTypeGranularity', function () {
     it('video', function () {
       let mediaTypes = { video: {id: '1'} };