From ccd198268055c6c40db5b01bb5fb53a3433372a1 Mon Sep 17 00:00:00 2001
From: susyt <susan@fox.camp>
Date: Thu, 21 Nov 2019 06:27:46 -0800
Subject: [PATCH] adds schain param (#4442)

---
 modules/gumgumBidAdapter.js                | 26 +++++++++++++++++++
 test/spec/modules/gumgumBidAdapter_spec.js | 30 +++++++++++++++++++++-
 2 files changed, 55 insertions(+), 1 deletion(-)

diff --git a/modules/gumgumBidAdapter.js b/modules/gumgumBidAdapter.js
index 585d3279a077..df6ca1971ee0 100644
--- a/modules/gumgumBidAdapter.js
+++ b/modules/gumgumBidAdapter.js
@@ -98,6 +98,28 @@ function _getDigiTrustQueryParams(userId) {
   };
 }
 
+/**
+ * Serializes the supply chain object according to IAB standards
+ * @see https://github.com/InteractiveAdvertisingBureau/openrtb/blob/master/supplychainobject.md
+ * @param {Object} schainObj supply chain object
+ * @returns {string}
+ */
+function _serializeSupplyChainObj(schainObj) {
+  let serializedSchain = `${schainObj.ver},${schainObj.complete}`;
+
+  // order of properties: asi,sid,hp,rid,name,domain
+  schainObj.nodes.map(node => {
+    serializedSchain += `!${encodeURIComponent(node['asi'] || '')},`;
+    serializedSchain += `${encodeURIComponent(node['sid'] || '')},`;
+    serializedSchain += `${encodeURIComponent(node['hp'] || '')},`;
+    serializedSchain += `${encodeURIComponent(node['rid'] || '')},`;
+    serializedSchain += `${encodeURIComponent(node['name'] || '')},`;
+    serializedSchain += `${encodeURIComponent(node['domain'] || '')}`;
+  })
+
+  return serializedSchain;
+}
+
 /**
  * Determines whether or not the given bid request is valid.
  *
@@ -141,6 +163,7 @@ function buildRequests (validBidRequests, bidderRequest) {
     const {
       bidId,
       params = {},
+      schain,
       transactionId,
       userId = {}
     } = bidRequest;
@@ -171,6 +194,9 @@ function buildRequests (validBidRequests, bidderRequest) {
     if (data.gdprApplies) {
       data.gdprConsent = gdprConsent.consentString;
     }
+    if (schain && schain.nodes) {
+      data.schain = _serializeSupplyChainObj(schain);
+    }
 
     bids.push({
       id: bidId,
diff --git a/test/spec/modules/gumgumBidAdapter_spec.js b/test/spec/modules/gumgumBidAdapter_spec.js
index 0d00eb2b93c9..97897a11ed3b 100644
--- a/test/spec/modules/gumgumBidAdapter_spec.js
+++ b/test/spec/modules/gumgumBidAdapter_spec.js
@@ -74,7 +74,29 @@ describe('gumgumAdapter', function () {
         },
         'adUnitCode': 'adunit-code',
         'sizes': [[300, 250], [300, 600]],
-        'bidId': '30b31c1838de1e'
+        'bidId': '30b31c1838de1e',
+        'schain': {
+          'ver': '1.0',
+          'complete': 1,
+          'nodes': [
+            {
+              'asi': 'exchange1.com',
+              'sid': '1234',
+              'hp': 1,
+              'rid': 'bid-request-1',
+              'name': 'publisher',
+              'domain': 'publisher.com'
+            },
+            {
+              'asi': 'exchange2.com',
+              'sid': 'abcd',
+              'hp': 1,
+              'rid': 'bid-request-2',
+              'name': 'intermediary',
+              'domain': 'intermediary.com'
+            }
+          ]
+        }
       }
     ];
 
@@ -140,6 +162,12 @@ describe('gumgumAdapter', function () {
       const request = spec.buildRequests(bidRequests)[0];
       expect(request.data).to.not.include.any.keys('tdid');
     });
+    it('should send schain parameter in serialized form', function () {
+      const serializedForm = '1.0,1!exchange1.com,1234,1,bid-request-1,publisher,publisher.com!exchange2.com,abcd,1,bid-request-2,intermediary,intermediary.com'
+      const request = spec.buildRequests(bidRequests)[0];
+      expect(request.data).to.include.any.keys('schain');
+      expect(request.data.schain).to.eq(serializedForm);
+    });
     it('should send ns parameter if browser contains navigator.connection property', function () {
       const bidRequest = spec.buildRequests(bidRequests)[0];
       const connection = window.navigator && window.navigator.connection;