Handle non supported vast error

Author: ZacharieTFR

spec/samples/outdated-vast.xml

@@ -0,0 +1,18 @@
+<VideoAdServingTemplate>
+    <Ad id="preroll-1">
+        <InLine>
+            <AdSystem>example-1</AdSystem>
+            <AdTitle>123456</AdTitle>
+            <Video>
+                <Duration>00:00:15</Duration>
+                <AdID>preroll-1</AdID>
+                <MediaFiles>
+                    <MediaFile width="600" type="video/x-flv" height="396" delivery="progressive"
+                        bitrate="496">
+                        <URL><![CDATA[http://example.com/ads/mediafile1.flv]]></URL>
+                    </MediaFile>
+                </MediaFiles>
+            </Video>
+        </InLine>
+    </Ad>
+</VideoAdServingTemplate>

spec/samples/wrapper-invalid-xmlfile.xml

@@ -27,42 +27,18 @@ const nodeUrlHandler = {
 const wrapperAVastUrl = urlFor('wrapper-a.xml');
 const wrapperBVastUrl = urlFor('wrapper-b.xml');
 const inlineSampleVastUrl = urlFor('sample.xml');
-const inlineVpaidVastUrl = urlFor('vpaid.xml');
 const inlineInvalidVastUrl = urlFor('invalid-xmlfile.xml');
-const wrapperWithAttributesVastUrl = urlFor(
-  'wrapper-attributes-multiple-ads.xml'
-);
-const wrapperInvalidVastUrl = urlFor('wrapper-invalid-xmlfile.xml');
-const vastWithErrorUrl = urlFor('empty-no-ad.xml');
-const ad = {
-  id: null,
-  sequence: 1,
-  system: { value: 'VAST', version: null },
-  title: null,
-  description: null,
-  advertiser: null,
-  pricing: null,
-  survey: null,
-  errorURLTemplates: ['http://example.com/wrapperA-error'],
-  impressionURLTemplates: [],
-  creatives: [],
-  extensions: [],
-  adVerifications: [],
-  trackingEvents: { nonlinear: [], linear: [] },
-  videoClickTrackingURLTemplates: [],
-  videoCustomClickURLTemplates: [],
-  viewableImpression: [],
-};
 
 describe('VASTParser', () => {
   let vastClient;
   let VastParser;
   let fetcher;
-  let inlineXml, invalidXml, errorXml, wrapperXml;
+  let inlineXml, invalidXml, errorXml, wrapperXml, outdatedXml;
 
   beforeAll(async () => {
     inlineXml = await nodeUrlHandler.get('./spec/samples/sample.xml');
     errorXml = await nodeUrlHandler.get('./spec/samples/empty-no-ad.xml');
+    outdatedXml = await nodeUrlHandler.get('./spec/samples/outdated-vast.xml');
     wrapperXml = await nodeUrlHandler.get(
       './spec/samples/wrapper-attributes-multiple-ads.xml'
     );
@@ -136,6 +112,23 @@ describe('VASTParser', () => {
       }
     });
 
+    it('throw a error for non supported XML vast', () => {
+      try {
+        VastParser.parseVastXml(outdatedXml.xml, {
+          isRootVAST: true,
+          url: null,
+          wrapperDepth: 0,
+        });
+      } catch (e) {
+        expect(e.message).toBe('VAST response version not supported');
+        expect(VastParser.emit).toHaveBeenLastCalledWith('VAST-ad-parsed', {
+          type: 'ERROR',
+          url: null,
+          wrapperDepth: 0,
+        });
+      }
+    });
+
     it('gets vast version from original vast', () => {
       VastParser.parseVastXml(inlineXml.xml, {
         isRootVAST: true,
@@ -480,20 +473,20 @@ describe('VASTParser', () => {
     });
 
     describe('Wrapper URL unavailable/timeout', () => {
-      it('sould emits a VAST-error and track', async () => {
+      it('should emits a VAST-error and track', async () => {
         const url = './spec/samples/wrapper-unavailable-url.xml';
 
         const response = await nodeUrlHandler.get(url);
 
         fetcher.setOptions({ ...options, url: url, previousUrl: url });
         VastParser.fetchingCallback = fetcher.fetchVAST.bind(fetcher);
 
-        const vastXML = await VastParser.parseVAST(response.xml, {
+        const vast = await VastParser.parseVAST(response.xml, {
           url: url,
           previousUrl: url,
         });
         // Response doesn't have any ads
-        expect(vastXML.ads).toEqual([]);
+        expect(vast.ads).toEqual([]);
         // Error has been trigered
         expect(dataTriggered.length).toBe(1);
         expect(dataTriggered[0].ERRORCODE).toBe(301);

spec/vast_parser.spec.js

@@ -36,7 +36,7 @@ async function handleResponse(response) {
  */
 function handleError(response) {
   if (
-    window.location.protocol === 'https:' &&
+    window?.location?.protocol === 'https:' &&
     response.url.includes('http://')
   ) {
     return 'URLHandler: Cannot go from HTTPS to HTTP.';
@@ -66,8 +66,7 @@ async function get(url, options) {
       ...options,
       signal: controller.signal,
       credentials: options.withCredentials ? 'include' : 'omit',
-    })
-    .finally(()=>{
+    }).finally(() => {
       clearTimeout(timer);
     });
 

src/fetcher/url_handler.js

@@ -10,7 +10,8 @@ const DEFAULT_EVENT_DATA = {
   ERRORCODE: 900,
   extensions: [],
 };
-
+const INVALID_VAST_ERROR = 'Invalid VAST XMLDocument';
+const NON_SUPPORTED_VAST_VERSION = 'VAST response version not supported';
 /**
  * This class provides methods to fetch and parse a VAST document.
  * @export
@@ -25,7 +26,10 @@ export class VASTParser extends EventEmitter {
   constructor({ fetcher } = {}) {
     super();
     this.maxWrapperDepth = null;
+    this.rootErrorURLTemplates = [];
+    this.errorURLTemplates = [];
     this.remainingAds = [];
+    this.parsingOptions = {};
     this.fetcher = fetcher || null;
   }
 
@@ -173,7 +177,12 @@ export class VASTParser extends EventEmitter {
         url,
         wrapperDepth,
       });
-      throw new Error('Invalid VAST XMLDocument');
+      // VideoAdServingTemplate node is used for VAST 1.0
+      const isNonSupportedVast =
+        vastXml?.documentElement?.nodeName === 'VideoAdServingTemplate';
+      throw new Error(
+        isNonSupportedVast ? NON_SUPPORTED_VAST_VERSION : INVALID_VAST_ERROR
+      );
     }
 
     const ads = [];
@@ -414,8 +423,8 @@ export class VASTParser extends EventEmitter {
         })
         .catch((err) => {
           // Timeout of VAST URI provided in Wrapper element, or of VAST URI provided in a subsequent Wrapper element.
-          // (URI was either unavailable or reached a timeout as defined by the video player.)
-          ad.errorCode = 301;
+          // (URI was either unavailable or reached a timeout as defined by the video player)
+          ad.errorCode = err.message === NON_SUPPORTED_VAST_VERSION ? 102 : 301;
           ad.errorMessage = err.message;
           resolve(ad);
         });
@@ -440,7 +449,10 @@ export class VASTParser extends EventEmitter {
         // - No Creative case - The parser has dealt with soma <Ad><Wrapper> or/and an <Ad><Inline> elements
         // but no creative was found
         const ad = vastResponse.ads[index];
-        if ((ad.errorCode || ad.creatives.length === 0) && !ad.VASTAdTagURI) {
+        const noMediaFilesAvailable = !ad.creatives.some(
+          (creative) => creative.mediaFiles?.length > 0
+        );
+        if ((ad.errorCode || noMediaFilesAvailable) && !ad.VASTAdTagURI) {
           // If VASTAdTagURI is in the vastResponse, it means we are dealing with a Wrapper when using parseVAST from the VASTParser.
           // In that case, we dont want to modify the vastResponse since the creatives node is not required in a wrapper.
           this.trackVastError(