[blackboardcollaborate] Add new extractor (#646)

Authored by: Ashish0804

yt_dlp/extractor/blackboardcollaborate.py

@@ -0,0 +1,68 @@
+# coding: utf-8
+from __future__ import unicode_literals
+
+import re
+
+from .common import InfoExtractor
+from ..utils import parse_iso8601
+
+
+class BlackboardCollaborateIE(InfoExtractor):
+    _VALID_URL = r'''(?x)
+                        https?://
+                        (?P<region>[a-z-]+)\.bbcollab\.com/
+                        (?:
+                            collab/ui/session/playback/load|
+                            recording
+                        )/
+                        (?P<id>[^/]+)'''
+    _TESTS = [
+        {
+            'url': 'https://us-lti.bbcollab.com/collab/ui/session/playback/load/0a633b6a88824deb8c918f470b22b256',
+            'md5': 'bb7a055682ee4f25fdb5838cdf014541',
+            'info_dict': {
+                'id': '0a633b6a88824deb8c918f470b22b256',
+                'title': 'HESI A2 Information Session - Thursday, May 6, 2021 - recording_1',
+                'ext': 'mp4',
+                'duration': 1896000,
+                'timestamp': 1620331399,
+                'upload_date': '20210506',
+            },
+        },
+        {
+            'url': 'https://us.bbcollab.com/collab/ui/session/playback/load/76761522adfe4345a0dee6794bbcabda',
+            'only_matching': True,
+        },
+        {
+            'url': 'https://ca.bbcollab.com/collab/ui/session/playback/load/b6399dcb44df4f21b29ebe581e22479d',
+            'only_matching': True,
+        },
+        {
+            'url': 'https://eu.bbcollab.com/recording/51ed7b50810c4444a106e48cefb3e6b5',
+            'only_matching': True,
+        },
+        {
+            'url': 'https://au.bbcollab.com/collab/ui/session/playback/load/2bccf7165d7c419ab87afc1ec3f3bb15',
+            'only_matching': True,
+        },
+    ]
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        region = mobj.group('region')
+        video_id = mobj.group('id')
+        info = self._download_json(
+            'https://{}.bbcollab.com/collab/api/csa/recordings/{}/data'.format(region, video_id), video_id)
+        duration = info.get('duration')
+        title = info['name']
+        upload_date = info.get('created')
+        streams = info['streams']
+        formats = [{'format_id': k, 'url': url} for k, url in streams.items()]
+
+        return {
+            'duration': duration,
+            'formats': formats,
+            'id': video_id,
+            'timestamp': parse_iso8601(upload_date),
+            'title': title,
+        }