[hotstar] several api changes and payloads/queries

youtube_dlc/extractor/hotstar.py

@@ -7,11 +7,12 @@
 import time
 import uuid
 import json
+import random
 
 from .common import InfoExtractor
 from ..compat import (
     compat_HTTPError,
-    compat_str,
+    compat_str
 )
 from ..utils import (
     determine_ext,
@@ -31,14 +32,30 @@ def _call_api_impl(self, path, video_id, query):
         exp = st + 6000
         auth = 'st=%d~exp=%d~acl=/*' % (st, exp)
         auth += '~hmac=' + hmac.new(self._AKAMAI_ENCRYPTION_KEY, auth.encode(), hashlib.sha256).hexdigest()
+
+        def _generate_device_id():
+            """
+            Reversed from javascript library.
+            JS function is generateUUID
+            """
+            t = int(round(time.time() * 1000))
+            e = "xxxxxxxx-xxxx-4xxx-xxxx-xxxxxxxxxxxx"  # 4 seems to be interchangeable
+
+            def _replacer():
+                n = int((t + 16 * random.random())) % 16 | 0
+                return hex(n if "x" == e else 3 & n | 8)[2:]
+            return "".join([_.replace('x', _replacer()) for _ in e])
+
         token = self._download_json(
-            'https://api.hotstar.com/in/aadhar/v2/web/in/user/guest-signup',
+            'https://api.hotstar.com/um/v3/users',
             video_id, note='Downloading token',
-            data=json.dumps({"idType": "device", "id": compat_str(uuid.uuid4())}).encode('utf-8'),
+            data=json.dumps({"device_ids": [{"id": compat_str(uuid.uuid4()), "type": "device_id"}]}).encode('utf-8'),
             headers={
                 'hotstarauth': auth,
+                'x-hs-platform': 'PCTV',  # or 'web'
                 'Content-Type': 'application/json',
-            })['description']['userIdentity']
+            })['user_identity']
+
         response = self._download_json(
             'https://api.hotstar.com/' + path, video_id, headers={
                 'hotstarauth': auth,
@@ -46,6 +63,7 @@ def _call_api_impl(self, path, video_id, query):
                 'x-hs-platform': 'web',
                 'x-hs-usertoken': token,
             }, query=query)
+
         if response['message'] != "Playback URL's fetched successfully":
             raise ExtractorError(
                 response['message'], expected=True)
@@ -60,7 +78,7 @@ def _call_api(self, path, video_id, query_name='contentId'):
     def _call_api_v2(self, path, video_id):
         return self._call_api_impl(
             '%s/content/%s' % (path, video_id), video_id, {
-                'desired-config': 'encryption:plain;ladder:phone,tv;package:hls,dash',
+                'desired-config': 'audio_channel:stereo|dynamic_range:sdr|encryption:plain|ladder:tv|package:dash|resolution:hd|subs-tag:HotstarVIP|video_codec:vp9',
                 'device-id': compat_str(uuid.uuid4()),
                 'os-name': 'Windows',
                 'os-version': '10',
@@ -129,6 +147,7 @@ def _real_extract(self, url):
         headers = {'Referer': url}
         formats = []
         geo_restricted = False
+        # change to v2 in the future
         playback_sets = self._call_api_v2('play/v1/playback', video_id)['playBackSets']
         for playback_set in playback_sets:
             if not isinstance(playback_set, dict):