[gaia] add support for authentication(closes #14605)

youtube_dl/extractor/gaia.py

@@ -4,12 +4,17 @@ from __future__ import unicode_literals
 import re
 
 from .common import InfoExtractor
-from ..compat import compat_str
+from ..compat import (
+    compat_str,
+    compat_urllib_parse_unquote,
+)
 from ..utils import (
+    ExtractorError,
     int_or_none,
     str_or_none,
     strip_or_none,
     try_get,
+    urlencode_postdata,
 )
 
 
@@ -46,6 +51,29 @@ class GaiaIE(InfoExtractor):
             'skip_download': True,
         },
     }]
+    _NETRC_MACHINE = 'gaia'
+    _jwt = None
+
+    def _real_initialize(self):
+        auth = self._get_cookies('https://www.gaia.com/').get('auth')
+        if auth:
+            auth = self._parse_json(
+                compat_urllib_parse_unquote(auth.value),
+                None, fatal=False)
+        if not auth:
+            username, password = self._get_login_info()
+            if username is None:
+                return
+            auth = self._download_json(
+                'https://auth.gaia.com/v1/login',
+                None, data=urlencode_postdata({
+                    'username': username,
+                    'password': password
+                }))
+            if auth.get('success') is False:
+                raise ExtractorError(', '.join(auth['messages']), expected=True)
+        if auth:
+            self._jwt = auth.get('jwt')
 
     def _real_extract(self, url):
         display_id, vtype = re.search(self._VALID_URL, url).groups()
@@ -59,8 +87,12 @@ class GaiaIE(InfoExtractor):
         media_id = compat_str(vdata['nid'])
         title = node['title']
 
+        headers = None
+        if self._jwt:
+            headers = {'Authorization': 'Bearer ' + self._jwt}
         media = self._download_json(
-            'https://brooklyn.gaia.com/media/' + media_id, media_id)
+            'https://brooklyn.gaia.com/media/' + media_id,
+            media_id, headers=headers)
         formats = self._extract_m3u8_formats(
             media['mediaUrls']['bcHLS'], media_id, 'mp4')
         self._sort_formats(formats)