ucfunnel adapter support supply chain (prebid#4383)

* Add a new ucfunnel Adapter and test page

* Add a new ucfunnel Adapter and test page

* 1. Use prebid lib in the repo to keep updated
2. Replace var with let
3. Put JSON.parse(JSON.stringify()) into try catch block

* utils.getTopWindowLocation is a function

* Change to modules from adapters

* Migrate to module design

* [Dev Fix] Remove width and height which can be got from ad unit id

* Update ucfunnelBidAdapter to fit into new spec

* Correct the endpoint. Fix the error of query string

* Add test case for ucfunnelBidAdapter

* Fix lint error

* Update version number

* Combine all checks on bid request

* Add GDPR support for ucfunnel adapter

* Add in-stream video and native support for ucfunnel adapter

* Remove demo page. Add more test cases.

* Change request method from POST to GET

* Remove unnecessary comment

* Support vastXml and vastUrl for video request

* update TTL to 30 mins

* Avoid using arrow function which is not discuraged in mocha

* ucfunnel tdid support

* ucfunnel adapter support supply chain

modules/ucfunnelBidAdapter.js

@@ -158,6 +158,28 @@ function parseSizes(bid) {
   return transformSizes(bid.sizes);
 }
 
+function getSupplyChain(schain) {
+  var supplyChain = '';
+  if (schain != null && schain.nodes) {
+    supplyChain = schain.ver + ',' + schain.complete;
+    for (let i = 0; i < schain.nodes.length; i++) {
+      supplyChain += '!';
+      supplyChain += (schain.nodes[i].asi) ? encodeURIComponent(schain.nodes[i].asi) : '';
+      supplyChain += ',';
+      supplyChain += (schain.nodes[i].sid) ? encodeURIComponent(schain.nodes[i].sid) : '';
+      supplyChain += ',';
+      supplyChain += (schain.nodes[i].hp) ? encodeURIComponent(schain.nodes[i].hp) : '';
+      supplyChain += ',';
+      supplyChain += (schain.nodes[i].rid) ? encodeURIComponent(schain.nodes[i].rid) : '';
+      supplyChain += ',';
+      supplyChain += (schain.nodes[i].name) ? encodeURIComponent(schain.nodes[i].name) : '';
+      supplyChain += ',';
+      supplyChain += (schain.nodes[i].domain) ? encodeURIComponent(schain.nodes[i].domain) : '';
+    }
+  }
+  return supplyChain;
+}
+
 function getRequestData(bid, bidderRequest) {
   const size = parseSizes(bid);
   const loc = utils.getTopWindowLocation();
@@ -169,6 +191,7 @@ function getRequestData(bid, bidderRequest) {
   const videoContext = utils.deepAccess(bid, 'mediaTypes.video.context');
   const videoMediaType = utils.deepAccess(bid, 'mediaTypes.video');
   const userIdTdid = (bid.userId && bid.userId.tdid) ? bid.userId.tdid : '';
+  const supplyChain = getSupplyChain(bid.schain);
   // general bid data
   let bidData = {
     ver: VER,
@@ -182,7 +205,8 @@ function getRequestData(bid, bidderRequest) {
     adid: utils.getBidIdParameter('adid', bid.params),
     w: size[0],
     h: size[1],
-    tdid: userIdTdid
+    tdid: userIdTdid,
+    schain: supplyChain
   };
 
   if (bid.mediaType === 'video' || videoMediaType) {

test/spec/modules/ucfunnelBidAdapter_spec.js

@@ -12,6 +12,20 @@ const validBannerBidReq = {
   sizes: [[300, 250]],
   bidId: '263be71e91dd9d',
   auctionId: '9ad1fa8d-2297-4660-a018-b39945054746',
+  'schain': {
+    'ver': '1.0',
+    'complete': 1,
+    'nodes': [
+      {
+        'asi': 'exchange1.com',
+        'sid': '1234',
+        'hp': 1,
+        'rid': 'bid-request-1',
+        'name': 'publisher',
+        'domain': 'publisher.com'
+      }
+    ]
+  }
 };
 
 const invalidBannerBidReq = {
@@ -114,6 +128,7 @@ describe('ucfunnel Adapter', function () {
       const [ width, height ] = validBannerBidReq.sizes[0];
       expect(data.w).to.equal(width);
       expect(data.h).to.equal(height);
+      expect(data.schain).to.equal('1.0,1!exchange1.com,1234,1,bid-request-1,publisher,publisher.com');
     });
 
     it('must parse bid size from a nested array', function () {