Using youtube api (v3) instead of v2 to get the video duration .

TNL-2413

cms/envs/common.py

@@ -44,7 +44,7 @@ from lms.envs.common import (
     PROFILE_IMAGE_SECRET_KEY, PROFILE_IMAGE_MIN_BYTES, PROFILE_IMAGE_MAX_BYTES,
     # The following setting is included as it is used to check whether to
     # display credit eligibility table on the CMS or not.
-    ENABLE_CREDIT_ELIGIBILITY
+    ENABLE_CREDIT_ELIGIBILITY, YOUTUBE_API_KEY
 )
 from path import path
 from warnings import simplefilter
@@ -654,10 +654,10 @@ CELERY_QUEUES = {
 
 YOUTUBE = {
     # YouTube JavaScript API
-    'API': 'www.youtube.com/iframe_api',
+    'API': 'https://www.youtube.com/iframe_api',
 
-    # URL to test YouTube availability
-    'TEST_URL': 'gdata.youtube.com/feeds/api/videos/',
+    # URL to get YouTube metadata
+    'METADATA_URL': 'https://www.googleapis.com/youtube/v3/videos',
 
     # Current youtube api for requesting transcripts.
     # For example: http://video.google.com/timedtext?lang=en&v=j_jEn79vS3g.
@@ -996,6 +996,9 @@ ELASTIC_FIELD_MAPPINGS = {
 XBLOCK_SETTINGS = {
     "VideoDescriptor": {
         "licensing_enabled": FEATURES.get("LICENSING", False)
+    },
+    'VideoModule': {
+        'YOUTUBE_API_KEY': YOUTUBE_API_KEY
     }
 }