Add native support

src/adapters/criteo.js

@@ -1,6 +1,7 @@
 var bidfactory = require('../bidfactory.js');
 var bidmanager = require('../bidmanager.js');
 var adloader = require('../adloader');
+var utils = require('../utils')
 
 var CriteoAdapter = function CriteoAdapter() {
 
@@ -34,11 +35,8 @@ var CriteoAdapter = function CriteoAdapter() {
 
     // generate the bidding event
     var biddingEventFunc = function () {
-
       var bids = params.bids || [];
-
       var slots = [];
-
       var isAudit = false;
 
       // build slots before sending one multi-slots bid request
@@ -47,7 +45,8 @@ var CriteoAdapter = function CriteoAdapter() {
         slots.push(
           new Criteo.PubTag.DirectBidding.DirectBiddingSlot(
             bid.placementCode,
-            bid.params.zoneId
+            bid.params.zoneId,
+            bid.params.nativeCallback ? bid.params.nativeCallback : undefined
           )
         );
 
@@ -103,18 +102,8 @@ var CriteoAdapter = function CriteoAdapter() {
         }
 
         // register the bid response
-        var bidObject;
-        if (bidResponse) {
-          bidObject = bidfactory.createBid(1);
-          bidObject.bidderCode = _bidderCode;
-          bidObject.cpm = bidResponse.cpm;
-          bidObject.ad = bidResponse.creative;
-          bidObject.width = bidResponse.width;
-          bidObject.height = bidResponse.height;
-        }
-        else {
-          bidObject = _invalidBidResponse();
-        }
+        let bidObject = _buildBidObject(bidResponse, slots[i]);
+
         bidmanager.addBidResponse(slots[i].impId, bidObject);
       }
     };
@@ -134,6 +123,50 @@ var CriteoAdapter = function CriteoAdapter() {
     return bidObject;
   }
 
+  function _buildBidObject(bidResponse, slot) {
+    let bidObject;
+    if (bidResponse) {
+
+      // map the common fields
+      bidObject = bidfactory.createBid(1);
+      bidObject.bidderCode = _bidderCode;
+      bidObject.cpm = bidResponse.cpm;
+
+      // in case of native
+      if (slot.nativeCallback && bidResponse.native) {
+
+        if (typeof slot.nativeCallback !== "function") {
+          utils.logError("Criteo bid: nativeCallback parameter is not a function");
+        } else {
+
+          // store the callbacks in a global object
+          window.criteo_pubtag.native_slots = window.criteo_pubtag.native_slots || {};
+          window.criteo_pubtag.native_slots[""+bidObject.adId] = { callback: slot.nativeCallback, nativeResponse: bidResponse.native };
+
+          // this code is executed in an iframe, we need to get a reference to the
+          // publishertag in the main window to retrieve native responses and callbacks.
+          // it doesn't work with safeframes
+          bidObject.ad =  "<script type=\"text/javascript\">";
+          bidObject.ad += "let win = window; for (let i=0; i<10; ++i) { win = win.parent; if (win.criteo_pubtag && win.criteo_pubtag.native_slots) {";
+          bidObject.ad += "let responseSlot = win.criteo_pubtag.native_slots[\"" + bidObject.adId + "\"];";
+          bidObject.ad += "responseSlot.callback(responseSlot.nativeResponse);break;";
+          bidObject.ad += "}}</script>";
+        }
+      } else {
+        // width and height are only relevant with non-native requests.
+        // native requests will always return a 2x2 zone size.
+        bidObject.width = bidResponse.width;
+        bidObject.height = bidResponse.height;
+        bidObject.ad = bidResponse.creative;
+      }
+
+    }
+    else {
+      bidObject = _invalidBidResponse();
+    }
+    return bidObject;
+  }
+
   return {
     callBids: _callBids
   };

test/spec/adapters/criteo_spec.js

@@ -51,7 +51,25 @@ describe('criteo adapter test', () => {
             }
           }
         ]
-   };
+  };
+
+
+  let validNativeResponse = {slots: [{impid: "foo", cpm: 1.12, native: {productName: "product0"}}]};
+  let validNativeBid = {
+    bidderCode: 'criteo',
+        bids: [
+          {
+            bidder: 'criteo',
+            placementCode: 'foo',
+            sizes: [[250, 350]],
+            params: {
+                zoneId: 32934,
+                audit: 'true',
+                nativeCallback: function(nativeJson) {console.log("Product name: " + nativeJson.productName)}
+            }
+          }
+        ]
+  }
 
   beforeEach(() => {
     adapter = new Adapter();
@@ -61,7 +79,7 @@ describe('criteo adapter test', () => {
     stubAddBidResponse.restore();
   });
 
-describe('adding bids to the manager', () => {
+describe('adding bids to the manager with non-native bids', () => {
     let server;
 
     beforeEach(() => {
@@ -114,6 +132,30 @@ describe('adding bids to the manager', () => {
       });
       adapter.callBids(validBid);
     });
+  });
+
+describe('adding bids to the manager with native bids', () => {
+    let server;
+
+    beforeEach(() => {
+      server = sinon.fakeServer.create({autoRespond: true, respondImmediately: true});
+      server.respondWith(JSON.stringify(validNativeResponse));
+    });
+
+    it('adds creative to the response of a native valid request', (done) => {
+      stubAddBidResponse = sinon.stub(bidManager, 'addBidResponse', function (adUnitCode, bid) {
+
+          let expectedAdProperty =  "<script type=\"text/javascript\">";
+          expectedAdProperty     += "let win = window; for (let i=0; i<10; ++i) { win = win.parent; if (win.criteo_pubtag && win.criteo_pubtag.native_slots) {";
+          expectedAdProperty     += "let responseSlot = win.criteo_pubtag.native_slots[\"" + bid.adId + "\"];";
+          expectedAdProperty     += "responseSlot.callback(responseSlot.nativeResponse);break;";
+          expectedAdProperty     += "}}</script>";
+
+          expect(bid).to.have.property('ad', expectedAdProperty);
+          done();
+        });
+        adapter.callBids(validNativeBid);
+      });
 });
 
 describe('dealing with unexpected situations', () => {