From 989a2c08f2c8418ef564c7143cc267504111ac28 Mon Sep 17 00:00:00 2001
From: JonathanTGold <62672270+JonathanTGold@users.noreply.github.com>
Date: Mon, 27 Sep 2021 17:43:42 +0200
Subject: [PATCH] fix(FEC-11547): The thumbnalils images should be relative to
 the VTT file adress by default (#607)

Currently the thumbnalils images URL is relative to the application domain by default, Although the convention is that they should be relative to the vtt file adress

solves: FEC-11547

related pr: https://github.com/kaltura/kaltura-player-js/pull/494
---
 .../types/exteranl-thumbnails-object.js       |  1 -
 src/thumbnail/external-thumbnails-handler.js  | 11 ++++--
 test/src/assets/thumbnails1.vtt               | 13 ++++---
 test/src/assets/thumbnails2.vtt               | 15 +++-----
 test/src/assets/thumbnails3.vtt               | 18 +++++-----
 .../external-thumbnails-handler.spec.js       | 34 +++++++++----------
 6 files changed, 46 insertions(+), 46 deletions(-)

diff --git a/flow-typed/types/exteranl-thumbnails-object.js b/flow-typed/types/exteranl-thumbnails-object.js
index c5ceb0be5..208bde82d 100644
--- a/flow-typed/types/exteranl-thumbnails-object.js
+++ b/flow-typed/types/exteranl-thumbnails-object.js
@@ -1,5 +1,4 @@
 // @flow
 declare type PKExternalThumbnailsConfig = {
-  imgBaseUrl?: string,
   vttUrl: string
 };
diff --git a/src/thumbnail/external-thumbnails-handler.js b/src/thumbnail/external-thumbnails-handler.js
index c536ab2ae..e94d55f55 100644
--- a/src/thumbnail/external-thumbnails-handler.js
+++ b/src/thumbnail/external-thumbnails-handler.js
@@ -12,6 +12,8 @@ import {Html5EventType} from '../event/event-type';
 const VTT_INCLUDES_SIZE_ONLY: RegExp = /#wh=/i;
 const VTT_INCLUDES_SIZE_AND_COORDS: RegExp = /#xywh=/i;
 
+const RELATIVE_PATH_PATTERN: RegExp = new RegExp('^/[^/].+');
+
 class ExternalThumbnailsHandler extends FakeEventTarget {
   constructor() {
     super();
@@ -218,7 +220,7 @@ class ExternalThumbnailsHandler extends FakeEventTarget {
    */
   _extractCueMetadata(vttCue: VTTCue, thumbnailsConfig: PKExternalThumbnailsConfig): PKThumbnailVttCue {
     const {startTime, endTime, text} = vttCue;
-    const {imgBaseUrl} = thumbnailsConfig;
+    const imgBaseUrl = thumbnailsConfig.vttUrl.substring(0, thumbnailsConfig.vttUrl.lastIndexOf('/'));
     const isVTTIncludesImgSizeOnly: boolean = VTT_INCLUDES_SIZE_ONLY.test(text);
     const isVTTIncludesImgSizeAndCoords: boolean = VTT_INCLUDES_SIZE_AND_COORDS.test(text);
     let isValidThumbnailVTTFormat: boolean = false;
@@ -244,7 +246,12 @@ class ExternalThumbnailsHandler extends FakeEventTarget {
       imgUrl = text;
       isValidThumbnailVTTFormat = !!text;
     }
-    imgUrl = imgBaseUrl ? `${imgBaseUrl}/${imgUrl}` : imgUrl;
+
+    if (!(imgUrl.indexOf('http://') === 0 || imgUrl.indexOf('https://') === 0)) {
+      imgUrl = RELATIVE_PATH_PATTERN.test(imgUrl) ? imgUrl.substring(1) : imgUrl;
+      imgUrl = `${imgBaseUrl}/${imgUrl}`;
+    }
+
     if (!isValidThumbnailVTTFormat) {
       throw new Error(Error.Severity.RECOVERABLE, Error.Category.TEXT, Error.Code.INVALID_VTT_THUMBNAILS_FILE, {
         message: 'error while parsing the vtt cues - invalid cue',
diff --git a/test/src/assets/thumbnails1.vtt b/test/src/assets/thumbnails1.vtt
index 9a924eb02..7d5f73fd9 100644
--- a/test/src/assets/thumbnails1.vtt
+++ b/test/src/assets/thumbnails1.vtt
@@ -1,20 +1,19 @@
 WEBVTT
 
 00:00:00.000 --> 00:00:05.000
-base/test/src/assets/00000002.jpg
+00000002.jpg
 
 00:00:05.000 --> 00:00:10.000
-base/test/src/assets/00000003.jpg
+00000003.jpg
 
 00:00:10.000 --> 00:00:15.000
-base/test/src/assets/00000004.jpg
+00000004.jpg
 
 00:00:15.000 --> 00:00:20.000
-base/test/src/assets/00000005.jpg
+00000005.jpg
 
 00:00:20.000 --> 00:00:25.000
-base/test/src/assets/00000006.jpg
+00000006.jpg
 
 00:00:25.000 --> 00:00:30.000
-base/test/src/assets/00000007.jpg
-
+00000007.jpg
diff --git a/test/src/assets/thumbnails2.vtt b/test/src/assets/thumbnails2.vtt
index edeb52569..74beeb846 100644
--- a/test/src/assets/thumbnails2.vtt
+++ b/test/src/assets/thumbnails2.vtt
@@ -1,21 +1,16 @@
 WEBVTT
 
 00:00.000 --> 00:05.000
-base/test/src/assets/00000002.jpg#wh=200,80
+00000002.jpg#wh=200,80
 
 00:05.000 --> 00:10.000
-base/test/src/assets/00000003.jpg#wh=200,80
+00000003.jpg#wh=200,80
 
 00:10.000 --> 00:15.000
-base/test/src/assets/00000004.jpg#wh=200,80
+00000004.jpg#wh=200,80
 
 00:15.000 --> 00:20.000
-base/test/src/assets/00000005.jpg#wh=200,80
+00000005.jpg#wh=200,80
 
 00:20.000 --> 00:25.000
-base/test/src/assets/00000006.jpg#wh=200,80
-
-
-
-
-
+00000006.jpg#wh=200,80
diff --git a/test/src/assets/thumbnails3.vtt b/test/src/assets/thumbnails3.vtt
index fff02d4e2..3f4b884e7 100644
--- a/test/src/assets/thumbnails3.vtt
+++ b/test/src/assets/thumbnails3.vtt
@@ -1,31 +1,31 @@
 WEBVTT
 
 00:00.000 --> 00:05.000
-base/test/src/assets/bbb-sprite.jpeg#xywh=0,0,128,72
+bbb-sprite.jpeg#xywh=0,0,128,72
 
 00:05.000 --> 00:10.000
-base/test/src/assets/bbb-sprite.jpeg#xywh=128,0,128,72
+bbb-sprite.jpeg#xywh=128,0,128,72
 
 00:10.000 --> 00:15.000
-base/test/src/assets/bbb-sprite.jpeg#xywh=256,0,128,72
+bbb-sprite.jpeg#xywh=256,0,128,72
 
 00:15.000 --> 00:20.000
-base/test/src/assets/bbb-sprite.jpeg#xywh=384,0,128,72
+bbb-sprite.jpeg#xywh=384,0,128,72
 
 00:20.000 --> 00:25.000
-base/test/src/assets/bbb-sprite.jpeg#xywh=512,0,128,72
+bbb-sprite.jpeg#xywh=512,0,128,72
 
 00:25.000 --> 00:30.000
-base/test/src/assets/bbb-sprite.jpeg#xywh=640,0,128,72
+bbb-sprite.jpeg#xywh=640,0,128,72
 
 00:30.000 --> 00:35.000
-base/test/src/assets/bbb-sprite.jpeg#xywh=768,0,128,72
+bbb-sprite.jpeg#xywh=768,0,128,72
 
 00:35.000 --> 00:40.000
-base/test/src/assets/bbb-sprite.jpeg#xywh=896,0,128,72
+bbb-sprite.jpeg#xywh=896,0,128,72
 
 00:40.000 --> 00:45.000
-base/test/src/assets/bbb-sprite.jpeg#xywh=1024,0,128,72
+bbb-sprite.jpeg#xywh=1024,0,128,72
 
 
 
diff --git a/test/src/thumbnail/external-thumbnails-handler.spec.js b/test/src/thumbnail/external-thumbnails-handler.spec.js
index fded0b1c1..92ca3857d 100644
--- a/test/src/thumbnail/external-thumbnails-handler.spec.js
+++ b/test/src/thumbnail/external-thumbnails-handler.spec.js
@@ -6,15 +6,15 @@ import {ThumbnailInfo} from '../../../src/thumbnail/thumbnail-info';
 let externalThumbnailsHandler: ExternalThumbnailsHandler;
 
 const thumbnailsCues = [
-  {startTime: 0, endTime: 5, imgUrl: 'base/test/src/assets/bbb-sprite.jpeg', size: {width: 128, height: 72}, coordinates: {x: 0, y: 0}},
-  {startTime: 5, endTime: 10, imgUrl: 'base/test/src/assets/bbb-sprite.jpeg', size: {width: 128, height: 72}, coordinates: {x: 128, y: 0}},
-  {startTime: 10, endTime: 15, imgUrl: 'base/test/src/assets/bbb-sprite.jpeg', size: {width: 128, height: 72}, coordinates: {x: 256, y: 0}},
-  {startTime: 15, endTime: 20, imgUrl: 'base/test/src/assets/bbb-sprite.jpeg', size: {width: 128, height: 72}, coordinates: {x: 384, y: 0}},
-  {startTime: 20, endTime: 25, imgUrl: 'base/test/src/assets/bbb-sprite.jpeg', size: {width: 128, height: 72}, coordinates: {x: 512, y: 0}},
-  {startTime: 25, endTime: 30, imgUrl: 'base/test/src/assets/bbb-sprite.jpeg', size: {width: 128, height: 72}, coordinates: {x: 640, y: 0}},
-  {startTime: 30, endTime: 35, imgUrl: 'base/test/src/assets/bbb-sprite.jpeg', size: {width: 128, height: 72}, coordinates: {x: 768, y: 0}},
-  {startTime: 35, endTime: 40, imgUrl: 'base/test/src/assets/bbb-sprite.jpeg', size: {width: 128, height: 72}, coordinates: {x: 896, y: 0}},
-  {startTime: 40, endTime: 45, imgUrl: 'base/test/src/assets/bbb-sprite.jpeg', size: {width: 128, height: 72}, coordinates: {x: 1024, y: 0}}
+  {startTime: 0, endTime: 5, imgUrl: '/base/test/src/assets/bbb-sprite.jpeg', size: {width: 128, height: 72}, coordinates: {x: 0, y: 0}},
+  {startTime: 5, endTime: 10, imgUrl: '/base/test/src/assets/bbb-sprite.jpeg', size: {width: 128, height: 72}, coordinates: {x: 128, y: 0}},
+  {startTime: 10, endTime: 15, imgUrl: '/base/test/src/assets/bbb-sprite.jpeg', size: {width: 128, height: 72}, coordinates: {x: 256, y: 0}},
+  {startTime: 15, endTime: 20, imgUrl: '/base/test/src/assets/bbb-sprite.jpeg', size: {width: 128, height: 72}, coordinates: {x: 384, y: 0}},
+  {startTime: 20, endTime: 25, imgUrl: '/base/test/src/assets/bbb-sprite.jpeg', size: {width: 128, height: 72}, coordinates: {x: 512, y: 0}},
+  {startTime: 25, endTime: 30, imgUrl: '/base/test/src/assets/bbb-sprite.jpeg', size: {width: 128, height: 72}, coordinates: {x: 640, y: 0}},
+  {startTime: 30, endTime: 35, imgUrl: '/base/test/src/assets/bbb-sprite.jpeg', size: {width: 128, height: 72}, coordinates: {x: 768, y: 0}},
+  {startTime: 35, endTime: 40, imgUrl: '/base/test/src/assets/bbb-sprite.jpeg', size: {width: 128, height: 72}, coordinates: {x: 896, y: 0}},
+  {startTime: 40, endTime: 45, imgUrl: '/base/test/src/assets/bbb-sprite.jpeg', size: {width: 128, height: 72}, coordinates: {x: 1024, y: 0}}
 ];
 
 describe('ExternalThumbnailsHandler', () => {
@@ -43,7 +43,7 @@ describe('ExternalThumbnailsHandler', () => {
     let time = 0;
     let x = -128;
     const nativeVttCues: VTTCue[] = [...thumbnailsCues].map(() => {
-      return new VTTCue(time, (time += 5), `base/test/src/assets/bbb-sprite.jpeg#xywh=${(x += 128)},0,128,72`);
+      return new VTTCue(time, (time += 5), `bbb-sprite.jpeg#xywh=${(x += 128)},0,128,72`);
     });
     const thumbnailsConfig: PKExternalThumbnailsConfig = {
       vttUrl: '/base/test/src/assets/thumbnails3.vtt'
@@ -76,12 +76,12 @@ describe('ExternalThumbnailsHandler', () => {
     };
 
     it('should turn a vtt cue into a thumbnail cue - vtt cue with size and coords options', async () => {
-      const nativeVTTCue: VTTCue = new VTTCue(0, 5, 'base/test/src/assets/bbb-sprite.jpeg#xywh=0,0,128,72');
+      const nativeVTTCue: VTTCue = new VTTCue(0, 5, 'bbb-sprite.jpeg#xywh=0,0,128,72');
       const actualParsedCue: ThumbnailInfo = await externalThumbnailsHandler._extractCueMetadata(nativeVTTCue, thumbnailsConfig);
       const expectedParsedCue: ThumbnailInfo = {
         startTime: 0,
         endTime: 5,
-        imgUrl: 'base/test/src/assets/bbb-sprite.jpeg',
+        imgUrl: '/base/test/src/assets/bbb-sprite.jpeg',
         size: {width: 128, height: 72},
         coordinates: {x: 0, y: 0}
       };
@@ -89,12 +89,12 @@ describe('ExternalThumbnailsHandler', () => {
     });
 
     it('should turn a vtt cue into a thumbnail cue - vtt cue with size options only - (the size options should be ignored) and size and coordinates should be null', async () => {
-      const nativeVTTCue: VTTCue = new VTTCue(0, 5, 'base/test/src/assets/bbb-sprite.jpeg#wh=128,72');
+      const nativeVTTCue: VTTCue = new VTTCue(0, 5, 'bbb-sprite.jpeg#wh=128,72');
       const actualParsedCue: ThumbnailInfo = await externalThumbnailsHandler._extractCueMetadata(nativeVTTCue, thumbnailsConfig);
       const expectedParsedCue: ThumbnailInfo = {
         startTime: 0,
         endTime: 5,
-        imgUrl: 'base/test/src/assets/bbb-sprite.jpeg',
+        imgUrl: '/base/test/src/assets/bbb-sprite.jpeg',
         size: null,
         coordinates: null
       };
@@ -102,12 +102,12 @@ describe('ExternalThumbnailsHandler', () => {
     });
 
     it('should turn a vtt cue into a thumbnail cue - vtt cue with url options only - the size options should be should be null', async () => {
-      const nativeVTTCue: VTTCue = new VTTCue(0, 5, 'base/test/src/assets/bbb-sprite.jpeg#wh=128,72');
+      const nativeVTTCue: VTTCue = new VTTCue(0, 5, 'bbb-sprite.jpeg#wh=128,72');
       const actualParsedCue: ThumbnailInfo = await externalThumbnailsHandler._extractCueMetadata(nativeVTTCue, thumbnailsConfig);
       const expectedParsedCue: ThumbnailInfo = {
         startTime: 0,
         endTime: 5,
-        imgUrl: 'base/test/src/assets/bbb-sprite.jpeg',
+        imgUrl: '/base/test/src/assets/bbb-sprite.jpeg',
         size: null,
         coordinates: null
       };
@@ -115,7 +115,7 @@ describe('ExternalThumbnailsHandler', () => {
     });
 
     it('should throw an error - invalid thumbnail cue format', () => {
-      const invalidVttThumbnailFormat: VTTCue = new VTTCue(0, 5, 'base/test/src/assets/bbb-sprite.jpeg#xywh=0,128,72');
+      const invalidVttThumbnailFormat: VTTCue = new VTTCue(0, 5, 'bbb-sprite.jpeg#xywh=0,128,72');
       expect(() => externalThumbnailsHandler._extractCueMetadata(invalidVttThumbnailFormat, thumbnailsConfig)).to.throw();
     });
   });