[discovery] extract Affiliate/Anonymous Auth Token from cookies(closes #14954)

youtube_dl/extractor/discovery.py

@@ -5,7 +5,10 @@ import re
 import string
 
 from .discoverygo import DiscoveryGoBaseIE
-from ..compat import compat_str
+from ..compat import (
+    compat_str,
+    compat_urllib_parse_unquote,
+)
 from ..utils import (
     ExtractorError,
     try_get,
@@ -55,6 +58,18 @@ class DiscoveryIE(DiscoveryGoBaseIE):
         video = next(cb for cb in content_blocks if cb.get('type') == 'video')['content']['items'][0]
         video_id = video['id']
 
+        access_token = None
+        cookies = self._get_cookies(url)
+
+        # prefer Affiliate Auth Token over Anonymous Auth Token
+        auth_storage_cookie = cookies.get('eosAf') or cookies.get('eosAn')
+        if auth_storage_cookie and auth_storage_cookie.value:
+            auth_storage = self._parse_json(compat_urllib_parse_unquote(
+                compat_urllib_parse_unquote(auth_storage_cookie.value)),
+                video_id, fatal=False) or {}
+            access_token = auth_storage.get('a') or auth_storage.get('access_token')
+
+        if not access_token:
             access_token = self._download_json(
                 'https://www.%s.com/anonymous' % site, display_id, query={
                     'authRel': 'authorization',
@@ -72,7 +87,7 @@ class DiscoveryIE(DiscoveryGoBaseIE):
                     'Authorization': 'Bearer ' + access_token,
                 })
         except ExtractorError as e:
-            if isinstance(e.cause, compat_HTTPError) and e.cause.code == 403:
+            if isinstance(e.cause, compat_HTTPError) and e.cause.code in (401, 403):
                 e_description = self._parse_json(
                     e.cause.read().decode(), display_id)['description']
                 if 'resource not available for country' in e_description: