Appnexus native view tracker (#4022)

* First pass: adding viewability script to rtbBid * Added viewability scrit in the right place * Clean up * Corrected script position, added a workaround to get the adId after the bid's creation and fixed tests * Removed debugging logs * More cleanup * Opted to append rtbBid.viewability.config to the existing (nativeAd.javascript_trackers) in the bidAdapter's newBid function * Removed AnalyticsAdaper code and added bidAdapter.onBidWon to check for our jstracker and update their src attributes. * Added a way to differentiate scripts and clean up * Changed newBid to disarm jstracker before it's ready and changed onBidWon to arm it. This prevents the tracker from being loaded twice. * Making the code more robust * Grouped code in a function. Also changed parameters to reflect that finding the element will now fall be a view_js responsability. * Changed parameter pbjs_iframeid name to pbjs_auc so its not misleading * Variable name change to better reflect its nature * Fixing URL parameters (; separated and replacing completely the useless one) * undo changes to appnexus Analytics adapter * update regex variable * update regex again
prebid · Jul 30, 2019 · e603156 · e603156
1 parent c079efe
commit e603156
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Showing 4 changed files with 134 additions and 7 deletions.
diff --git a/modules/appnexusBidAdapter.js b/modules/appnexusBidAdapter.js
@@ -33,6 +33,9 @@ const NATIVE_MAPPING = {
 const SOURCE = 'pbjs';
 const MAX_IMPS_PER_REQUEST = 15;
 const mappingFileUrl = '//acdn.adnxs.com/prebid/appnexus-mapping/mappings.json';
+const SCRIPT_TAG_START = '<script';
+const VIEWABILITY_URL_START = /http:\/\/cdn\.adnxs\.com\/v/;
+const VIEWABILITY_FILE_NAME = 'trk.js';
 
 export const spec = {
  code: BIDDER_CODE,
@@ -283,6 +286,16 @@ export const spec = {
  }
 
  return params;
+ },
+
+ /**
+ * Add element selector to javascript tracker to improve native viewability
+ * @param {Bid} bid
+ */
+ onBidWon: function(bid) {
+ if (bid.native) {
+ reloadViewabilityScriptWithCorrectParameters(bid);
+ }
  }
 }
 
@@ -296,6 +309,91 @@ function deleteValues(keyPairObj) {
  }
 }
 
+function reloadViewabilityScriptWithCorrectParameters(bid) {
+ let viewJsPayload = getAppnexusViewabilityScriptFromJsTrackers(bid.native.javascriptTrackers);
+
+ if (viewJsPayload) {
+ let prebidParams = 'pbjs_adid=' + bid.adId + ';pbjs_auc=' + bid.adUnitCode;
+
+ let jsTrackerSrc = getViewabilityScriptUrlFromPayload(viewJsPayload)
+
+ let newJsTrackerSrc = jsTrackerSrc.replace('dom_id=%native_dom_id%', prebidParams);
+
+ // find iframe containing script tag
+ let frameArray = document.getElementsByTagName('iframe');
+
+ // boolean var to modify only one script. That way if there are muliple scripts,
+ // they won't all point to the same creative.
+ let modifiedAScript = false;
+
+ // first, loop on all ifames
+ for (let i = 0; i < frameArray.length && !modifiedAScript; i++) {
+ let currentFrame = frameArray[i];
+ try {
+ // IE-compatible, see https://stackoverflow.com/a/3999191/2112089
+ let nestedDoc = currentFrame.contentDocument || currentFrame.contentWindow.document;
+
+ if (nestedDoc) {
+ // if the doc is present, we look for our jstracker
+ let scriptArray = nestedDoc.getElementsByTagName('script');
+ for (let j = 0; j < scriptArray.length && !modifiedAScript; j++) {
+ let currentScript = scriptArray[j];
+ if (currentScript.getAttribute('data-src') == jsTrackerSrc) {
+ currentScript.setAttribute('src', newJsTrackerSrc);
+ currentScript.setAttribute('data-src', '');
+ if (currentScript.removeAttribute) {
+ currentScript.removeAttribute('data-src');
+ }
+ modifiedAScript = true;
+ }
+ }
+ }
+ } catch (exception) {
+ // trying to access a cross-domain iframe raises a SecurityError
+ // this is expected and ignored
+ if (!(exception instanceof DOMException && exception.name === 'SecurityError')) {
+ // all other cases are raised again to be treated by the calling function
+ throw exception;
+ }
+ }
+ }
+ }
+}
+
+function strIsAppnexusViewabilityScript(str) {
+ let regexMatchUrlStart = str.match(VIEWABILITY_URL_START);
+ let viewUrlStartInStr = regexMatchUrlStart != null && regexMatchUrlStart.length >= 1;
+
+ let regexMatchFileName = str.match(VIEWABILITY_FILE_NAME);
+ let fileNameInStr = regexMatchFileName != null && regexMatchFileName.length >= 1;
+
+ return str.startsWith(SCRIPT_TAG_START) && fileNameInStr && viewUrlStartInStr;
+}
+
+function getAppnexusViewabilityScriptFromJsTrackers(jsTrackerArray) {
+ let viewJsPayload;
+ if (utils.isStr(jsTrackerArray) && strIsAppnexusViewabilityScript(jsTrackerArray)) {
+ viewJsPayload = jsTrackerArray;
+ } else if (utils.isArray(jsTrackerArray)) {
+ for (let i = 0; i < jsTrackerArray.length; i++) {
+ let currentJsTracker = jsTrackerArray[i];
+ if (strIsAppnexusViewabilityScript(currentJsTracker)) {
+ viewJsPayload = currentJsTracker;
+ }
+ }
+ }
+ return viewJsPayload;
+}
+
+function getViewabilityScriptUrlFromPayload(viewJsPayload) {
+ // extracting the content of the src attribute
+ // -> substring between src=" and "
+ let indexOfFirstQuote = viewJsPayload.indexOf('src="') + 5; // offset of 5: the length of 'src=' + 1
+ let indexOfSecondQuote = viewJsPayload.indexOf('"', indexOfFirstQuote);
+ let jsTrackerSrc = viewJsPayload.substring(indexOfFirstQuote, indexOfSecondQuote);
+ return jsTrackerSrc;
+}
+
 function formatRequest(payload, bidderRequest) {
  let request = [];
 
@@ -415,6 +513,22 @@ function newBid(serverBid, rtbBid, bidderRequest) {
  }
  } else if (rtbBid.rtb[NATIVE]) {
  const nativeAd = rtbBid.rtb[NATIVE];
+
+ // setting up the jsTracker:
+ // we put it as a data-src attribute so that the tracker isn't called
+ // until we have the adId (see onBidWon)
+ let jsTrackerDisarmed = rtbBid.viewability.config.replace('src=', 'data-src=');
+
+ let jsTrackers = nativeAd.javascript_trackers;
+
+ if (jsTrackers == undefined) {
+ jsTrackers = jsTrackerDisarmed;
+ } else if (utils.isStr(jsTrackers)) {
+ jsTrackers = [jsTrackers, jsTrackerDisarmed];
+ } else {
+ jsTrackers.push(jsTrackerDisarmed);
+ }
+
  bid[NATIVE] = {
  title: nativeAd.title,
  body: nativeAd.desc,
@@ -433,7 +547,7 @@ function newBid(serverBid, rtbBid, bidderRequest) {
  displayUrl: nativeAd.displayurl,
  clickTrackers: nativeAd.link.click_trackers,
  impressionTrackers: nativeAd.impression_trackers,
- javascriptTrackers: nativeAd.javascript_trackers
+ javascriptTrackers: jsTrackers
  };
  if (nativeAd.main_img) {
  bid['native'].image = {

diff --git a/src/native.js b/src/native.js
@@ -132,7 +132,6 @@ export function nativeBidIsValid(bid, bidRequests) {
  */
 export function fireNativeTrackers(message, adObject) {
  let trackers;
-
  if (message.action === 'click') {
  trackers = adObject['native'] && adObject['native'].clickTrackers;
  } else {

diff --git a/test/spec/modules/appnexusBidAdapter_spec.js b/test/spec/modules/appnexusBidAdapter_spec.js
@@ -665,6 +665,9 @@ describe('AppNexusAdapter', function () {
  'cpm_publisher_currency': 0.5,
  'publisher_currency_code': '$',
  'client_initiated_ad_counting': true,
+ 'viewability': {
+ 'config': '<script type=\'text/javascript\' async=\'true\' src=\'http://cdn.adnxs.com/v/s/152/trk.js#v;vk=appnexus.com-omid;tv=native1-18h;dom_id=%native_dom_id%;st=0;d=1x1;vc=iab;vid_ccr=1;tag_id=13232354;cb=http%3A%2F%2Fams1-ib.adnxs.com%2Fvevent%3Freferrer%3Dhttp%253A%252F%252Ftestpages-pmahe.tp.adnxs.net%252F01_basic_single%26e%3DwqT_3QLNB6DNAwAAAwDWAAUBCLfl_-MFEMStk8u3lPTjRxih88aF0fq_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-CoAcgDANgD8ao-4AMA6AMA-AMBgAQAkgQNL3V0L3YzL3ByZWJpZJgEAKIECjEwLjIuMTIuMzioBIqpB7IEDggAEAEYACAAKAAwADgCuAQAwAQAyAQA0gQOOTMyNSNBTVMxOjQzMjDaBAIIAeAEAfAEg8u-LogFAZgFAKAF______8BAxgBwAUAyQUABQEU8D_SBQkJBQt8AAAA2AUB4AUB8AWZ9CH6BQQIABAAkAYBmAYAuAYAwQYBITAAAPA_yAYA2gYWChAAOgEAGBAAGADgBgw.%26s%3D971dce9d49b6bee447c8a58774fb30b40fe98171;ts=1551889079;cet=0;cecb=\'></script>'
+ },
  'rtb': {
  'banner': {
  'content': '<!-- Creative -->',
@@ -744,7 +747,8 @@ describe('AppNexusAdapter', function () {
  'video': {
  'content': '<!-- Creative -->'
  }
- }
+ },
+ 'javascriptTrackers': '<script type=\'text/javascript\' async=\'true\' src=\'http://cdn.adnxs.com/v/s/152/trk.js#v;vk=appnexus.com-omid;tv=native1-18h;dom_id=%native_dom_id%;st=0;d=1x1;vc=iab;vid_ccr=1;tag_id=13232354;cb=http%3A%2F%2Fams1-ib.adnxs.com%2Fvevent%3Freferrer%3Dhttp%253A%252F%252Ftestpages-pmahe.tp.adnxs.net%252F01_basic_single%26e%3DwqT_3QLNB6DNAwAAAwDWAAUBCLfl_-MFEMStk8u3lPTjRxih88aF0fq_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-CoAcgDANgD8ao-4AMA6AMA-AMBgAQAkgQNL3V0L3YzL3ByZWJpZJgEAKIECjEwLjIuMTIuMzioBIqpB7IEDggAEAEYACAAKAAwADgCuAQAwAQAyAQA0gQOOTMyNSNBTVMxOjQzMjDaBAIIAeAEAfAEg8u-LogFAZgFAKAF______8BAxgBwAUAyQUABQEU8D_SBQkJBQt8AAAA2AUB4AUB8AWZ9CH6BQQIABAAkAYBmAYAuAYAwQYBITAAAPA_yAYA2gYWChAAOgEAGBAAGADgBgw.%26s%3D971dce9d49b6bee447c8a58774fb30b40fe98171;ts=1551889079;cet=0;cecb=\'></script>'
  }]
  }]
  };
@@ -775,6 +779,9 @@ describe('AppNexusAdapter', function () {
  'content': '<!-- Creative -->',
  'duration_ms': 30000,
  }
+ },
+ 'viewability': {
+ 'config': '<script type=\'text/javascript\' async=\'true\' src=\'http://cdn.adnxs.com/v/s/152/trk.js#v;vk=appnexus.com-omid;tv=native1-18h;dom_id=%native_dom_id%;st=0;d=1x1;vc=iab;vid_ccr=1;tag_id=13232354;cb=http%3A%2F%2Fams1-ib.adnxs.com%2Fvevent%3Freferrer%3Dhttp%253A%252F%252Ftestpages-pmahe.tp.adnxs.net%252F01_basic_single%26e%3DwqT_3QLNB6DNAwAAAwDWAAUBCLfl_-MFEMStk8u3lPTjRxih88aF0fq_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-CoAcgDANgD8ao-4AMA6AMA-AMBgAQAkgQNL3V0L3YzL3ByZWJpZJgEAKIECjEwLjIuMTIuMzioBIqpB7IEDggAEAEYACAAKAAwADgCuAQAwAQAyAQA0gQOOTMyNSNBTVMxOjQzMjDaBAIIAeAEAfAEg8u-LogFAZgFAKAF______8BAxgBwAUAyQUABQEU8D_SBQkJBQt8AAAA2AUB4AUB8AWZ9CH6BQQIABAAkAYBmAYAuAYAwQYBITAAAPA_yAYA2gYWChAAOgEAGBAAGADgBgw.%26s%3D971dce9d49b6bee447c8a58774fb30b40fe98171;ts=1551889079;cet=0;cecb=\'></script>'
  }
  }]
  }]
@@ -831,7 +838,8 @@ describe('AppNexusAdapter', function () {
  'saleprice': 'FREE',
  'phone': '1234567890',
  'address': '28 W 23rd St, New York, NY 10010',
- 'privacy_link': 'http://appnexus.com/?url=privacy_url'
+ 'privacy_link': 'http://appnexus.com/?url=privacy_url',
+ 'javascriptTrackers': '<script type=\'text/javascript\' async=\'true\' src=\'http://cdn.adnxs.com/v/s/152/trk.js#v;vk=appnexus.com-omid;tv=native1-18h;dom_id=;css_selector=.pb-click;st=0;d=1x1;vc=iab;vid_ccr=1;tag_id=13232354;cb=http%3A%2F%2Fams1-ib.adnxs.com%2Fvevent%3Freferrer%3Dhttp%253A%252F%252Ftestpages-pmahe.tp.adnxs.net%252F01_basic_single%26e%3DwqT_3QLNB6DNAwAAAwDWAAUBCLfl_-MFEMStk8u3lPTjRxih88aF0fq_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-CoAcgDANgD8ao-4AMA6AMA-AMBgAQAkgQNL3V0L3YzL3ByZWJpZJgEAKIECjEwLjIuMTIuMzioBIqpB7IEDggAEAEYACAAKAAwADgCuAQAwAQAyAQA0gQOOTMyNSNBTVMxOjQzMjDaBAIIAeAEAfAEg8u-LogFAZgFAKAF______8BAxgBwAUAyQUABQEU8D_SBQkJBQt8AAAA2AUB4AUB8AWZ9CH6BQQIABAAkAYBmAYAuAYAwQYBITAAAPA_yAYA2gYWChAAOgEAGBAAGADgBgw.%26s%3D971dce9d49b6bee447c8a58774fb30b40fe98171;ts=1551889079;cet=0;cecb=\'></script>'
  };
  let bidderRequest = {
  bids: [{

diff --git a/test/spec/unit/pbjs_api_spec.js b/test/spec/unit/pbjs_api_spec.js
@@ -434,7 +434,9 @@ describe('Unit: Prebid Module', function () {
  'trackers': [{
  'impression_urls': ['http://lax1-ib.adnxs.com/impression']
  }]
- }
+ },
+ 'viewability': {
+ 'config': '<script type=\'text/javascript\' async=\'true\' src=\'http://cdn.adnxs.com/v/s/152/trk.js#v;vk=appnexus.com-omid;tv=native1-18h;dom_id=%native_dom_id%;st=0;d=1x1;vc=iab;vid_ccr=1;tag_id=13232354;cb=http%3A%2F%2Fams1-ib.adnxs.com%2Fvevent%3Freferrer%3Dhttp%253A%252F%252Ftestpages-pmahe.tp.adnxs.net%252F01_basic_single%26e%3DwqT_3QLNB6DNAwAAAwDWAAUBCLfl_-MFEMStk8u3lPTjRxih88aF0fq_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-CoAcgDANgD8ao-4AMA6AMA-AMBgAQAkgQNL3V0L3YzL3ByZWJpZJgEAKIECjEwLjIuMTIuMzioBIqpB7IEDggAEAEYACAAKAAwADgCuAQAwAQAyAQA0gQOOTMyNSNBTVMxOjQzMjDaBAIIAeAEAfAEg8u-LogFAZgFAKAF______8BAxgBwAUAyQUABQEU8D_SBQkJBQt8AAAA2AUB4AUB8AWZ9CH6BQQIABAAkAYBmAYAuAYAwQYBITAAAPA_yAYA2gYWChAAOgEAGBAAGADgBgw.%26s%3D971dce9d49b6bee447c8a58774fb30b40fe98171;ts=1551889079;cet=0;cecb=\'></script>'}
  }]
  }]
  };
@@ -574,7 +576,9 @@ describe('Unit: Prebid Module', function () {
  'trackers': [{
  'impression_urls': ['http://lax1-ib.adnxs.com/impression']
  }]
- }
+ },
+ 'viewability': {
+ 'config': '<script type=\'text/javascript\' async=\'true\' src=\'http://cdn.adnxs.com/v/s/152/trk.js#v;vk=appnexus.com-omid;tv=native1-18h;dom_id=%native_dom_id%;st=0;d=1x1;vc=iab;vid_ccr=1;tag_id=13232354;cb=http%3A%2F%2Fams1-ib.adnxs.com%2Fvevent%3Freferrer%3Dhttp%253A%252F%252Ftestpages-pmahe.tp.adnxs.net%252F01_basic_single%26e%3DwqT_3QLNB6DNAwAAAwDWAAUBCLfl_-MFEMStk8u3lPTjRxih88aF0fq_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-CoAcgDANgD8ao-4AMA6AMA-AMBgAQAkgQNL3V0L3YzL3ByZWJpZJgEAKIECjEwLjIuMTIuMzioBIqpB7IEDggAEAEYACAAKAAwADgCuAQAwAQAyAQA0gQOOTMyNSNBTVMxOjQzMjDaBAIIAeAEAfAEg8u-LogFAZgFAKAF______8BAxgBwAUAyQUABQEU8D_SBQkJBQt8AAAA2AUB4AUB8AWZ9CH6BQQIABAAkAYBmAYAuAYAwQYBITAAAPA_yAYA2gYWChAAOgEAGBAAGADgBgw.%26s%3D971dce9d49b6bee447c8a58774fb30b40fe98171;ts=1551889079;cet=0;cecb=\'></script>'}
  }]
  }]
  };
@@ -606,7 +610,9 @@ describe('Unit: Prebid Module', function () {
  'trackers': [{
  'impression_urls': ['http://lax1-ib.adnxs.com/impression']
  }]
- }
+ },
+ 'viewability': {
+ 'config': '<script type=\'text/javascript\' async=\'true\' src=\'http://cdn.adnxs.com/v/s/152/trk.js#v;vk=appnexus.com-omid;tv=native1-18h;dom_id=%native_dom_id%;st=0;d=1x1;vc=iab;vid_ccr=1;tag_id=13232354;cb=http%3A%2F%2Fams1-ib.adnxs.com%2Fvevent%3Freferrer%3Dhttp%253A%252F%252Ftestpages-pmahe.tp.adnxs.net%252F01_basic_single%26e%3DwqT_3QLNB6DNAwAAAwDWAAUBCLfl_-MFEMStk8u3lPTjRxih88aF0fq_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-CoAcgDANgD8ao-4AMA6AMA-AMBgAQAkgQNL3V0L3YzL3ByZWJpZJgEAKIECjEwLjIuMTIuMzioBIqpB7IEDggAEAEYACAAKAAwADgCuAQAwAQAyAQA0gQOOTMyNSNBTVMxOjQzMjDaBAIIAeAEAfAEg8u-LogFAZgFAKAF______8BAxgBwAUAyQUABQEU8D_SBQkJBQt8AAAA2AUB4AUB8AWZ9CH6BQQIABAAkAYBmAYAuAYAwQYBITAAAPA_yAYA2gYWChAAOgEAGBAAGADgBgw.%26s%3D971dce9d49b6bee447c8a58774fb30b40fe98171;ts=1551889079;cet=0;cecb=\'></script>'}
  }]
  }]
  };