Magnite Analytics Adapter: Browser Name Parsing

modules/magniteAnalyticsAdapter.js

@@ -305,6 +305,10 @@ const getTopLevelDetails = () => {
     }
   }
 
+  if (browser) {
+    deepSetValue(payload, rubiConf.pbaBrowserLocation || 'client.browser', browser);
+  }
+
   // Add DM wrapper details
   if (rubiConf.wrapperName) {
     payload.wrapper = {
@@ -595,6 +599,28 @@ const subscribeToGamSlots = () => {
   });
 }
 
+/**
+ * Lazy parsing of UA to determine browser
+ * @param {string} userAgent string from prebid ortb ua or navigator
+ * @returns {string} lazily guessed browser name
+ */
+export const detectBrowserFromUa = userAgent => {
+  let normalizedUa = userAgent.toLowerCase();
+
+  if (normalizedUa.includes('edg')) {
+    return 'Edge';
+  } else if ((/opr|opera|opt/i).test(normalizedUa)) {
+    return 'Opera';
+  } else if ((/chrome|crios/i).test(normalizedUa)) {
+    return 'Chrome';
+  } else if ((/fxios|firefox/i).test(normalizedUa)) {
+    return 'Firefox';
+  } else if (normalizedUa.includes('safari') && !(/chromium|ucbrowser/i).test(normalizedUa)) {
+    return 'Safari';
+  }
+  return 'OTHER';
+}
+
 let accountId;
 let endpoint;
 
@@ -656,6 +682,7 @@ magniteAdapter.onDataDeletionRequest = function () {
 magniteAdapter.MODULE_INITIALIZED_TIME = Date.now();
 magniteAdapter.referrerHostname = '';
 
+let browser;
 magniteAdapter.track = ({ eventType, args }) => {
   switch (eventType) {
     case AUCTION_INIT:
@@ -675,6 +702,12 @@ magniteAdapter.track = ({ eventType, args }) => {
       ]);
       auctionData.accountId = accountId;
 
+      // get browser
+      if (!browser) {
+        const userAgent = deepAccess(args, 'bidderRequests.0.ortb2.device.ua', navigator.userAgent) || '';
+        browser = detectBrowserFromUa(userAgent);
+      }
+
       // Order bidders were called
       auctionData.bidderOrder = args.bidderRequests.map(bidderRequest => bidderRequest.bidderCode);
 

test/spec/modules/magniteAnalyticsAdapter_spec.js

@@ -3,6 +3,7 @@ import magniteAdapter, {
   getHostNameFromReferer,
   storage,
   rubiConf,
+  detectBrowserFromUa
 } from '../../../modules/magniteAnalyticsAdapter.js';
 import CONSTANTS from 'src/constants.json';
 import { config } from 'src/config.js';
@@ -101,6 +102,11 @@ const MOCK = {
             'startTime': 1658868383748
           }
         ],
+        'ortb2': {
+          'device': {
+            'ua': 'Mozilla/ 5.0(Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/ 537.36(KHTML, like Gecko) Chrome/ 109.0.0.0 Safari / 537.36'
+          }
+        },
         'refererInfo': {
           'page': 'http://a-test-domain.com:8000/test_pages/sanity/TEMP/prebidTest.html?pbjs_debug=true',
         },
@@ -209,6 +215,9 @@ const ANALYTICS_MESSAGE = {
     'start': 1519767013781,
     'expires': 1519788613781
   },
+  'client': {
+    'browser': 'Chrome'
+  },
   'auctions': [
     {
       'auctionId': '99785e47-a7c8-4c8a-ae05-ef1c717a4b4d',
@@ -550,6 +559,29 @@ describe('magnite analytics adapter', function () {
       ]);
     });
 
+    [
+      {
+        ua: 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.0 Safari/605.1.15',
+        expected: 'Safari'
+      },
+      {
+        ua: 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/109.0',
+        expected: 'Firefox'
+      },
+      {
+        ua: 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36 Edg/109.0.1518.78',
+        expected: 'Edge'
+      },
+      {
+        ua: 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36 OPR/94.0.0.0',
+        expected: 'Opera'
+      }
+    ].forEach(testData => {
+      it(`should parse browser from ${testData.expected} user agent correctly`, function () {
+        expect(detectBrowserFromUa(testData.ua)).to.equal(testData.expected);
+      });
+    })
+
     it('should pass along 1x1 size if no sizes in adUnit', function () {
       const auctionInit = utils.deepClone(MOCK.AUCTION_INIT);