Merge tag 'upstream/2016.12.01'

[youtubedl] / youtube_dl / extractor / youtube.py

diff --git a/youtube_dl/extractor/youtube.py b/youtube_dl/extractor/youtube.py
index c8d54f22a80ac447179305f50a85b42c483b946e..bd24a28389bf847f1e72451e232bfab0807809d8 100644 (file)
--- a/youtube_dl/extractor/youtube.py
+++ b/youtube_dl/extractor/youtube.py
@@ -53,6 +53,7 @@ class YoutubeBaseInfoExtractor(InfoExtractor):
     """Provide base functions for Youtube extractors"""
     _LOGIN_URL = 'https://accounts.google.com/ServiceLogin'
     _TWOFACTOR_URL = 'https://accounts.google.com/signin/challenge'
     """Provide base functions for Youtube extractors"""
     _LOGIN_URL = 'https://accounts.google.com/ServiceLogin'
     _TWOFACTOR_URL = 'https://accounts.google.com/signin/challenge'

+    _PASSWORD_CHALLENGE_URL = 'https://accounts.google.com/signin/challenge/sl/password'

     _NETRC_MACHINE = 'youtube'
     # If True it will raise an error if no login info is provided
     _LOGIN_REQUIRED = False
     _NETRC_MACHINE = 'youtube'
     # If True it will raise an error if no login info is provided
     _LOGIN_REQUIRED = False


@@ -90,38 +91,18 @@ class YoutubeBaseInfoExtractor(InfoExtractor):
         if login_page is False:
             return
 
         if login_page is False:
             return
 

-        galx = self._search_regex(r'(?s)<input.+?name="GALX".+?value="(.+?)"',
-                                  login_page, 'Login GALX parameter')
+        login_form = self._hidden_inputs(login_page)

 
 

-        # Log in
-        login_form_strs = {
-            'continue': 'https://www.youtube.com/signin?action_handle_signin=true&feature=sign_in_button&hl=en_US&nomobiletemp=1',
+        login_form.update({
+            'checkConnection': 'youtube',

             'Email': username,
             'Email': username,

-            'GALX': galx,

             'Passwd': password,
             'Passwd': password,

+        })

 
 

-            'PersistentCookie': 'yes',
-            '_utf8': '霱',
-            'bgresponse': 'js_disabled',
-            'checkConnection': '',
-            'checkedDomains': 'youtube',
-            'dnConn': '',
-            'pstMsg': '0',
-            'rmShown': '1',
-            'secTok': '',
-            'signIn': 'Sign in',
-            'timeStmp': '',
-            'service': 'youtube',
-            'uilel': '3',
-            'hl': 'en_US',
-        }
-
-        login_data = urlencode_postdata(login_form_strs)
-
-        req = sanitized_Request(self._LOGIN_URL, login_data)

         login_results = self._download_webpage(
         login_results = self._download_webpage(

-            req, None,
-            note='Logging in', errnote='unable to log in', fatal=False)
+            self._PASSWORD_CHALLENGE_URL, None,
+            note='Logging in', errnote='unable to log in', fatal=False,
+            data=urlencode_postdata(login_form))

         if login_results is False:
             return False
 
         if login_results is False:
             return False
 


@@ -137,7 +118,7 @@ class YoutubeBaseInfoExtractor(InfoExtractor):
         # Two-Factor
         # TODO add SMS and phone call support - these require making a request and then prompting the user
 
         # Two-Factor
         # TODO add SMS and phone call support - these require making a request and then prompting the user
 

-        if re.search(r'(?i)<form[^>]* id="challenge"', login_results) is not None:
+        if re.search(r'(?i)<form[^>]+id="challenge"', login_results) is not None:

             tfa_code = self._get_tfa_info('2-step verification code')
 
             if not tfa_code:
             tfa_code = self._get_tfa_info('2-step verification code')
 
             if not tfa_code:


@@ -165,17 +146,17 @@ class YoutubeBaseInfoExtractor(InfoExtractor):
             if tfa_results is False:
                 return False
 
             if tfa_results is False:
                 return False
 

-            if re.search(r'(?i)<form[^>]* id="challenge"', tfa_results) is not None:
+            if re.search(r'(?i)<form[^>]+id="challenge"', tfa_results) is not None:

                 self._downloader.report_warning('Two-factor code expired or invalid. Please try again, or use a one-use backup code instead.')
                 return False
                 self._downloader.report_warning('Two-factor code expired or invalid. Please try again, or use a one-use backup code instead.')
                 return False

-            if re.search(r'(?i)<form[^>]* id="gaia_loginform"', tfa_results) is not None:
+            if re.search(r'(?i)<form[^>]+id="gaia_loginform"', tfa_results) is not None:

                 self._downloader.report_warning('unable to log in - did the page structure change?')
                 return False
             if re.search(r'smsauth-interstitial-reviewsettings', tfa_results) is not None:
                 self._downloader.report_warning('Your Google account has a security notice. Please log in on your web browser, resolve the notice, and try again.')
                 return False
 
                 self._downloader.report_warning('unable to log in - did the page structure change?')
                 return False
             if re.search(r'smsauth-interstitial-reviewsettings', tfa_results) is not None:
                 self._downloader.report_warning('Your Google account has a security notice. Please log in on your web browser, resolve the notice, and try again.')
                 return False
 

-        if re.search(r'(?i)<form[^>]* id="gaia_loginform"', login_results) is not None:
+        if re.search(r'(?i)<form[^>]+id="gaia_loginform"', login_results) is not None:

             self._downloader.report_warning('unable to log in: bad username or password')
             return False
         return True
             self._downloader.report_warning('unable to log in: bad username or password')
             return False
         return True


@@ -283,7 +264,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
                          )
                      )?                                                       # all until now is optional -> you can pass the naked ID
                      ([0-9A-Za-z_-]{11})                                      # here is it! the YouTube video ID
                          )
                      )?                                                       # all until now is optional -> you can pass the naked ID
                      ([0-9A-Za-z_-]{11})                                      # here is it! the YouTube video ID

-                     (?!.*?&list=)                                            # combined list/video URLs are handled by the playlist IE
+                     (?!.*?\blist=)                                            # combined list/video URLs are handled by the playlist IE

                      (?(1).+)?                                                # if we found the ID, everything can follow
                      $"""
     _NEXT_URL_RE = r'[\?&]next_url=([^&]+)'
                      (?(1).+)?                                                # if we found the ID, everything can follow
                      $"""
     _NEXT_URL_RE = r'[\?&]next_url=([^&]+)'


@@ -388,7 +369,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
     IE_NAME = 'youtube'
     _TESTS = [
         {
     IE_NAME = 'youtube'
     _TESTS = [
         {

-            'url': 'http://www.youtube.com/watch?v=BaW_jenozKc&t=1s&end=9',
+            'url': 'https://www.youtube.com/watch?v=BaW_jenozKc&t=1s&end=9',

             'info_dict': {
                 'id': 'BaW_jenozKc',
                 'ext': 'mp4',
             'info_dict': {
                 'id': 'BaW_jenozKc',
                 'ext': 'mp4',


@@ -408,7 +389,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
             }
         },
         {
             }
         },
         {

-            'url': 'http://www.youtube.com/watch?v=UxxajLWwzqY',
+            'url': 'https://www.youtube.com/watch?v=UxxajLWwzqY',

             'note': 'Test generic use_cipher_signature video (#897)',
             'info_dict': {
                 'id': 'UxxajLWwzqY',
             'note': 'Test generic use_cipher_signature video (#897)',
             'info_dict': {
                 'id': 'UxxajLWwzqY',


@@ -462,7 +443,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
             }
         },
         {
             }
         },
         {

-            'url': 'http://www.youtube.com/watch?v=BaW_jenozKc&v=UxxajLWwzqY',
+            'url': 'https://www.youtube.com/watch?v=BaW_jenozKc&v=UxxajLWwzqY',

             'note': 'Use the first video ID in the URL',
             'info_dict': {
                 'id': 'BaW_jenozKc',
             'note': 'Use the first video ID in the URL',
             'info_dict': {
                 'id': 'BaW_jenozKc',


@@ -484,7 +465,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
             },
         },
         {
             },
         },
         {

-            'url': 'http://www.youtube.com/watch?v=a9LDPn-MO4I',
+            'url': 'https://www.youtube.com/watch?v=a9LDPn-MO4I',

             'note': '256k DASH audio (format 141) via DASH manifest',
             'info_dict': {
                 'id': 'a9LDPn-MO4I',
             'note': '256k DASH audio (format 141) via DASH manifest',
             'info_dict': {
                 'id': 'a9LDPn-MO4I',


@@ -558,7 +539,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
         },
         # Normal age-gate video (No vevo, embed allowed)
         {
         },
         # Normal age-gate video (No vevo, embed allowed)
         {

-            'url': 'http://youtube.com/watch?v=HtVdAasjOgU',
+            'url': 'https://youtube.com/watch?v=HtVdAasjOgU',

             'info_dict': {
                 'id': 'HtVdAasjOgU',
                 'ext': 'mp4',
             'info_dict': {
                 'id': 'HtVdAasjOgU',
                 'ext': 'mp4',


@@ -574,7 +555,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
         },
         # Age-gate video with encrypted signature
         {
         },
         # Age-gate video with encrypted signature
         {

-            'url': 'http://www.youtube.com/watch?v=6kLq3WMV1nU',
+            'url': 'https://www.youtube.com/watch?v=6kLq3WMV1nU',

             'info_dict': {
                 'id': '6kLq3WMV1nU',
                 'ext': 'mp4',
             'info_dict': {
                 'id': '6kLq3WMV1nU',
                 'ext': 'mp4',


@@ -767,11 +748,11 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
             'skip': 'Not multifeed anymore',
         },
         {
             'skip': 'Not multifeed anymore',
         },
         {

-            'url': 'http://vid.plus/FlRa-iH7PGw',
+            'url': 'https://vid.plus/FlRa-iH7PGw',

             'only_matching': True,
         },
         {
             'only_matching': True,
         },
         {

-            'url': 'http://zwearz.com/watch/9lWxNJF-ufM/electra-woman-dyna-girl-official-trailer-grace-helbig.html',
+            'url': 'https://zwearz.com/watch/9lWxNJF-ufM/electra-woman-dyna-girl-official-trailer-grace-helbig.html',

             'only_matching': True,
         },
         {
             'only_matching': True,
         },
         {


@@ -858,6 +839,29 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
         {
             'url': 'https://www.youtube.com/watch?feature=player_embedded&amp;amp;v=V36LpHqtcDY',
             'only_matching': True,
         {
             'url': 'https://www.youtube.com/watch?feature=player_embedded&amp;amp;v=V36LpHqtcDY',
             'only_matching': True,

+        },
+        {
+            # YouTube Red paid video (https://github.com/rg3/youtube-dl/issues/10059)
+            'url': 'https://www.youtube.com/watch?v=i1Ko8UG-Tdo',
+            'only_matching': True,
+        },
+        {
+            # Rental video preview
+            'url': 'https://www.youtube.com/watch?v=yYr8q0y5Jfg',
+            'info_dict': {
+                'id': 'uGpuVWrhIzE',
+                'ext': 'mp4',
+                'title': 'Piku - Trailer',
+                'description': 'md5:c36bd60c3fd6f1954086c083c72092eb',
+                'upload_date': '20150811',
+                'uploader': 'FlixMatrix',
+                'uploader_id': 'FlixMatrixKaravan',
+                'uploader_url': 're:https?://(?:www\.)?youtube\.com/user/FlixMatrixKaravan',
+                'license': 'Standard YouTube License',
+            },
+            'params': {
+                'skip_download': True,
+            },

         }
     ]
 
         }
     ]
 


@@ -1268,6 +1272,12 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
                     # Convert to the same format returned by compat_parse_qs
                     video_info = dict((k, [v]) for k, v in args.items())
                     add_dash_mpd(video_info)
                     # Convert to the same format returned by compat_parse_qs
                     video_info = dict((k, [v]) for k, v in args.items())
                     add_dash_mpd(video_info)

+                # Rental video is not rented but preview is available (e.g.
+                # https://www.youtube.com/watch?v=yYr8q0y5Jfg,
+                # https://github.com/rg3/youtube-dl/issues/10532)
+                if not video_info and args.get('ypc_vid'):
+                    return self.url_result(
+                        args['ypc_vid'], YoutubeIE.ie_key(), video_id=args['ypc_vid'])

                 if args.get('livestream') == '1' or args.get('live_playback') == 1:
                     is_live = True
             if not video_info or self._downloader.params.get('youtube_include_dash_manifest', True):
                 if args.get('livestream') == '1' or args.get('live_playback') == 1:
                     is_live = True
             if not video_info or self._downloader.params.get('youtube_include_dash_manifest', True):


@@ -1730,16 +1740,52 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
         }
 
 
         }
 
 

+class YoutubeSharedVideoIE(InfoExtractor):
+    _VALID_URL = r'(?:https?:)?//(?:www\.)?youtube\.com/shared\?.*\bci=(?P<id>[0-9A-Za-z_-]{11})'
+    IE_NAME = 'youtube:shared'
+
+    _TEST = {
+        'url': 'https://www.youtube.com/shared?ci=1nEzmT-M4fU',
+        'info_dict': {
+            'id': 'uPDB5I9wfp8',
+            'ext': 'webm',
+            'title': 'Pocoyo: 90 minutos de episódios completos Português para crianças - PARTE 3',
+            'description': 'md5:d9e4d9346a2dfff4c7dc4c8cec0f546d',
+            'upload_date': '20160219',
+            'uploader': 'Pocoyo - Português (BR)',
+            'uploader_id': 'PocoyoBrazil',
+        },
+        'add_ie': ['Youtube'],
+        'params': {
+            # There are already too many Youtube downloads
+            'skip_download': True,
+        },
+    }
+
+    def _real_extract(self, url):
+        video_id = self._match_id(url)
+
+        webpage = self._download_webpage(url, video_id)
+
+        real_video_id = self._html_search_meta(
+            'videoId', webpage, 'YouTube video id', fatal=True)
+
+        return self.url_result(real_video_id, YoutubeIE.ie_key())
+
+

 class YoutubePlaylistIE(YoutubePlaylistBaseInfoExtractor):
     IE_DESC = 'YouTube.com playlists'
     _VALID_URL = r"""(?x)(?:
                         (?:https?://)?
                         (?:\w+\.)?
 class YoutubePlaylistIE(YoutubePlaylistBaseInfoExtractor):
     IE_DESC = 'YouTube.com playlists'
     _VALID_URL = r"""(?x)(?:
                         (?:https?://)?
                         (?:\w+\.)?

-                        youtube\.com/

                         (?:
                         (?:

-                           (?:course|view_play_list|my_playlists|artist|playlist|watch|embed/videoseries)
-                           \? (?:.*?[&;])*? (?:p|a|list)=
-                        |  p/
+                            youtube\.com/
+                            (?:
+                               (?:course|view_play_list|my_playlists|artist|playlist|watch|embed/videoseries)
+                               \? (?:.*?[&;])*? (?:p|a|list)=
+                            |  p/
+                            )|
+                            youtu\.be/[0-9A-Za-z_-]{11}\?.*?\blist=

                         )
                         (
                             (?:PL|LL|EC|UU|FL|RD|UL)?[0-9A-Za-z-_]{10,}
                         )
                         (
                             (?:PL|LL|EC|UU|FL|RD|UL)?[0-9A-Za-z-_]{10,}


@@ -1750,7 +1796,7 @@ class YoutubePlaylistIE(YoutubePlaylistBaseInfoExtractor):
                      |
                         ((?:PL|LL|EC|UU|FL|RD|UL)[0-9A-Za-z-_]{10,})
                      )"""
                      |
                         ((?:PL|LL|EC|UU|FL|RD|UL)[0-9A-Za-z-_]{10,})
                      )"""

-    _TEMPLATE_URL = 'https://www.youtube.com/playlist?list=%s'
+    _TEMPLATE_URL = 'https://www.youtube.com/playlist?list=%s&disable_polymer=true'

     _VIDEO_RE = r'href="\s*/watch\?v=(?P<id>[0-9A-Za-z_-]{11})&amp;[^"]*?index=(?P<index>\d+)(?:[^>]+>(?P<title>[^<]+))?'
     IE_NAME = 'youtube:playlist'
     _TESTS = [{
     _VIDEO_RE = r'href="\s*/watch\?v=(?P<id>[0-9A-Za-z_-]{11})&amp;[^"]*?index=(?P<index>\d+)(?:[^>]+>(?P<title>[^<]+))?'
     IE_NAME = 'youtube:playlist'
     _TESTS = [{


@@ -1800,7 +1846,7 @@ class YoutubePlaylistIE(YoutubePlaylistBaseInfoExtractor):
         'playlist_count': 2,
     }, {
         'note': 'embedded',
         'playlist_count': 2,
     }, {
         'note': 'embedded',

-        'url': 'http://www.youtube.com/embed/videoseries?list=PL6IaIsEjSbf96XFRuNccS_RuEXwNdsoEu',
+        'url': 'https://www.youtube.com/embed/videoseries?list=PL6IaIsEjSbf96XFRuNccS_RuEXwNdsoEu',

         'playlist_count': 4,
         'info_dict': {
             'title': 'JODA15',
         'playlist_count': 4,
         'info_dict': {
             'title': 'JODA15',


@@ -1808,7 +1854,7 @@ class YoutubePlaylistIE(YoutubePlaylistBaseInfoExtractor):
         }
     }, {
         'note': 'Embedded SWF player',
         }
     }, {
         'note': 'Embedded SWF player',

-        'url': 'http://www.youtube.com/p/YN5VISEtHet5D4NEvfTd0zcgFk84NqFZ?hl=en_US&fs=1&rel=0',
+        'url': 'https://www.youtube.com/p/YN5VISEtHet5D4NEvfTd0zcgFk84NqFZ?hl=en_US&fs=1&rel=0',

         'playlist_count': 4,
         'info_dict': {
             'title': 'JODA7',
         'playlist_count': 4,
         'info_dict': {
             'title': 'JODA7',


@@ -1821,7 +1867,53 @@ class YoutubePlaylistIE(YoutubePlaylistBaseInfoExtractor):
             'title': 'Uploads from Interstellar Movie',
             'id': 'UUXw-G3eDE9trcvY2sBMM_aA',
         },
             'title': 'Uploads from Interstellar Movie',
             'id': 'UUXw-G3eDE9trcvY2sBMM_aA',
         },

-        'playlist_mincout': 21,
+        'playlist_mincount': 21,
+    }, {
+        # Playlist URL that does not actually serve a playlist
+        'url': 'https://www.youtube.com/watch?v=FqZTN594JQw&list=PLMYEtVRpaqY00V9W81Cwmzp6N6vZqfUKD4',
+        'info_dict': {
+            'id': 'FqZTN594JQw',
+            'ext': 'webm',
+            'title': "Smiley's People 01 detective, Adventure Series, Action",
+            'uploader': 'STREEM',
+            'uploader_id': 'UCyPhqAZgwYWZfxElWVbVJng',
+            'uploader_url': 're:https?://(?:www\.)?youtube\.com/channel/UCyPhqAZgwYWZfxElWVbVJng',
+            'upload_date': '20150526',
+            'license': 'Standard YouTube License',
+            'description': 'md5:507cdcb5a49ac0da37a920ece610be80',
+            'categories': ['People & Blogs'],
+            'tags': list,
+            'like_count': int,
+            'dislike_count': int,
+        },
+        'params': {
+            'skip_download': True,
+        },
+        'add_ie': [YoutubeIE.ie_key()],
+    }, {
+        'url': 'https://youtu.be/yeWKywCrFtk?list=PL2qgrgXsNUG5ig9cat4ohreBjYLAPC0J5',
+        'info_dict': {
+            'id': 'yeWKywCrFtk',
+            'ext': 'mp4',
+            'title': 'Small Scale Baler and Braiding Rugs',
+            'uploader': 'Backus-Page House Museum',
+            'uploader_id': 'backuspagemuseum',
+            'uploader_url': 're:https?://(?:www\.)?youtube\.com/user/backuspagemuseum',
+            'upload_date': '20161008',
+            'license': 'Standard YouTube License',
+            'description': 'md5:800c0c78d5eb128500bffd4f0b4f2e8a',
+            'categories': ['Nonprofits & Activism'],
+            'tags': list,
+            'like_count': int,
+            'dislike_count': int,
+        },
+        'params': {
+            'noplaylist': True,
+            'skip_download': True,
+        },
+    }, {
+        'url': 'https://youtu.be/uWyaPkt-VOI?list=PL9D9FC436B881BA21',
+        'only_matching': True,

     }]
 
     def _real_initialize(self):
     }]
 
     def _real_initialize(self):


@@ -1882,20 +1974,35 @@ class YoutubePlaylistIE(YoutubePlaylistBaseInfoExtractor):
 
         playlist_title = self._html_search_regex(
             r'(?s)<h1 class="pl-header-title[^"]*"[^>]*>\s*(.*?)\s*</h1>',
 
         playlist_title = self._html_search_regex(
             r'(?s)<h1 class="pl-header-title[^"]*"[^>]*>\s*(.*?)\s*</h1>',

-            page, 'title')
+            page, 'title', default=None)
+
+        has_videos = True
+
+        if not playlist_title:
+            try:
+                # Some playlist URLs don't actually serve a playlist (e.g.
+                # https://www.youtube.com/watch?v=FqZTN594JQw&list=PLMYEtVRpaqY00V9W81Cwmzp6N6vZqfUKD4)
+                next(self._entries(page, playlist_id))
+            except StopIteration:
+                has_videos = False

 
 

-        return self.playlist_result(self._entries(page, playlist_id), playlist_id, playlist_title)
+        return has_videos, self.playlist_result(
+            self._entries(page, playlist_id), playlist_id, playlist_title)

 
     def _check_download_just_video(self, url, playlist_id):
         # Check if it's a video-specific URL
         query_dict = compat_urlparse.parse_qs(compat_urlparse.urlparse(url).query)
 
     def _check_download_just_video(self, url, playlist_id):
         # Check if it's a video-specific URL
         query_dict = compat_urlparse.parse_qs(compat_urlparse.urlparse(url).query)

-        if 'v' in query_dict:
-            video_id = query_dict['v'][0]
+        video_id = query_dict.get('v', [None])[0] or self._search_regex(
+            r'(?:^|//)youtu\.be/([0-9A-Za-z_-]{11})', url,
+            'video id', default=None)
+        if video_id:

             if self._downloader.params.get('noplaylist'):
                 self.to_screen('Downloading just video %s because of --no-playlist' % video_id)
             if self._downloader.params.get('noplaylist'):
                 self.to_screen('Downloading just video %s because of --no-playlist' % video_id)

-                return self.url_result(video_id, 'Youtube', video_id=video_id)
+                return video_id, self.url_result(video_id, 'Youtube', video_id=video_id)

             else:
                 self.to_screen('Downloading playlist %s - add --no-playlist to just download video %s' % (playlist_id, video_id))
             else:
                 self.to_screen('Downloading playlist %s - add --no-playlist to just download video %s' % (playlist_id, video_id))

+                return video_id, None
+        return None, None

 
     def _real_extract(self, url):
         # Extract playlist id
 
     def _real_extract(self, url):
         # Extract playlist id


@@ -1904,7 +2011,7 @@ class YoutubePlaylistIE(YoutubePlaylistBaseInfoExtractor):
             raise ExtractorError('Invalid URL: %s' % url)
         playlist_id = mobj.group(1) or mobj.group(2)
 
             raise ExtractorError('Invalid URL: %s' % url)
         playlist_id = mobj.group(1) or mobj.group(2)
 

-        video = self._check_download_just_video(url, playlist_id)
+        video_id, video = self._check_download_just_video(url, playlist_id)

         if video:
             return video
 
         if video:
             return video
 


@@ -1912,7 +2019,15 @@ class YoutubePlaylistIE(YoutubePlaylistBaseInfoExtractor):
             # Mixes require a custom extraction process
             return self._extract_mix(playlist_id)
 
             # Mixes require a custom extraction process
             return self._extract_mix(playlist_id)
 

-        return self._extract_playlist(playlist_id)
+        has_videos, playlist = self._extract_playlist(playlist_id)
+        if has_videos or not video_id:
+            return playlist
+
+        # Some playlist URLs don't actually serve a playlist (see
+        # https://github.com/rg3/youtube-dl/issues/10537).
+        # Fallback to plain video extraction if there is a video id
+        # along with playlist id.
+        return self.url_result(video_id, 'Youtube', video_id=video_id)

 
 
 class YoutubeChannelIE(YoutubePlaylistBaseInfoExtractor):
 
 
 class YoutubeChannelIE(YoutubePlaylistBaseInfoExtractor):


@@ -1945,10 +2060,13 @@ class YoutubeChannelIE(YoutubePlaylistBaseInfoExtractor):
         return (False if YoutubePlaylistsIE.suitable(url) or YoutubeLiveIE.suitable(url)
                 else super(YoutubeChannelIE, cls).suitable(url))
 
         return (False if YoutubePlaylistsIE.suitable(url) or YoutubeLiveIE.suitable(url)
                 else super(YoutubeChannelIE, cls).suitable(url))
 

+    def _build_template_url(self, url, channel_id):
+        return self._TEMPLATE_URL % channel_id
+

     def _real_extract(self, url):
         channel_id = self._match_id(url)
 
     def _real_extract(self, url):
         channel_id = self._match_id(url)
 

-        url = self._TEMPLATE_URL % channel_id
+        url = self._build_template_url(url, channel_id)

 
         # Channel by page listing is restricted to 35 pages of 30 items, i.e. 1050 videos total (see #5778)
         # Workaround by extracting as a playlist if managed to obtain channel playlist URL
 
         # Channel by page listing is restricted to 35 pages of 30 items, i.e. 1050 videos total (see #5778)
         # Workaround by extracting as a playlist if managed to obtain channel playlist URL


@@ -1962,9 +2080,13 @@ class YoutubeChannelIE(YoutubePlaylistBaseInfoExtractor):
             channel_playlist_id = self._html_search_meta(
                 'channelId', channel_page, 'channel id', default=None)
             if not channel_playlist_id:
             channel_playlist_id = self._html_search_meta(
                 'channelId', channel_page, 'channel id', default=None)
             if not channel_playlist_id:

-                channel_playlist_id = self._search_regex(
-                    r'data-(?:channel-external-|yt)id="([^"]+)"',
-                    channel_page, 'channel id', default=None)
+                channel_url = self._html_search_meta(
+                    ('al:ios:url', 'twitter:app:url:iphone', 'twitter:app:url:ipad'),
+                    channel_page, 'channel url', default=None)
+                if channel_url:
+                    channel_playlist_id = self._search_regex(
+                        r'vnd\.youtube://user/([0-9A-Za-z_-]+)',
+                        channel_url, 'channel id', default=None)

         if channel_playlist_id and channel_playlist_id.startswith('UC'):
             playlist_id = 'UU' + channel_playlist_id[2:]
             return self.url_result(
         if channel_playlist_id and channel_playlist_id.startswith('UC'):
             playlist_id = 'UU' + channel_playlist_id[2:]
             return self.url_result(


@@ -1987,20 +2109,39 @@ class YoutubeChannelIE(YoutubePlaylistBaseInfoExtractor):
                 for video_id, video_title in self.extract_videos_from_page(channel_page)]
             return self.playlist_result(entries, channel_id)
 
                 for video_id, video_title in self.extract_videos_from_page(channel_page)]
             return self.playlist_result(entries, channel_id)
 

+        try:
+            next(self._entries(channel_page, channel_id))
+        except StopIteration:
+            alert_message = self._html_search_regex(
+                r'(?s)<div[^>]+class=(["\']).*?\byt-alert-message\b.*?\1[^>]*>(?P<alert>[^<]+)</div>',
+                channel_page, 'alert', default=None, group='alert')
+            if alert_message:
+                raise ExtractorError('Youtube said: %s' % alert_message, expected=True)
+

         return self.playlist_result(self._entries(channel_page, channel_id), channel_id)
 
 
 class YoutubeUserIE(YoutubeChannelIE):
     IE_DESC = 'YouTube.com user videos (URL or "ytuser" keyword)'
         return self.playlist_result(self._entries(channel_page, channel_id), channel_id)
 
 
 class YoutubeUserIE(YoutubeChannelIE):
     IE_DESC = 'YouTube.com user videos (URL or "ytuser" keyword)'

-    _VALID_URL = r'(?:(?:https?://(?:\w+\.)?youtube\.com/(?:user/|c/)?(?!(?:attribution_link|watch|results)(?:$|[^a-z_A-Z0-9-])))|ytuser:)(?!feed/)(?P<id>[A-Za-z0-9_-]+)'
-    _TEMPLATE_URL = 'https://www.youtube.com/user/%s/videos'
+    _VALID_URL = r'(?:(?:https?://(?:\w+\.)?youtube\.com/(?:(?P<user>user|c)/)?(?!(?:attribution_link|watch|results)(?:$|[^a-z_A-Z0-9-])))|ytuser:)(?!feed/)(?P<id>[A-Za-z0-9_-]+)'
+    _TEMPLATE_URL = 'https://www.youtube.com/%s/%s/videos'

     IE_NAME = 'youtube:user'
 
     _TESTS = [{
         'url': 'https://www.youtube.com/user/TheLinuxFoundation',
         'playlist_mincount': 320,
         'info_dict': {
     IE_NAME = 'youtube:user'
 
     _TESTS = [{
         'url': 'https://www.youtube.com/user/TheLinuxFoundation',
         'playlist_mincount': 320,
         'info_dict': {

-            'title': 'TheLinuxFoundation',
+            'id': 'UUfX55Sx5hEFjoC3cNs6mCUQ',
+            'title': 'Uploads from The Linux Foundation',
+        }
+    }, {
+        # Only available via https://www.youtube.com/c/12minuteathlete/videos
+        # but not https://www.youtube.com/user/12minuteathlete/videos
+        'url': 'https://www.youtube.com/c/12minuteathlete/videos',
+        'playlist_mincount': 249,
+        'info_dict': {
+            'id': 'UUVjM-zV6_opMDx7WYxnjZiQ',
+            'title': 'Uploads from 12 Minute Athlete',

         }
     }, {
         'url': 'ytuser:phihag',
         }
     }, {
         'url': 'ytuser:phihag',


@@ -2008,6 +2149,13 @@ class YoutubeUserIE(YoutubeChannelIE):
     }, {
         'url': 'https://www.youtube.com/c/gametrailers',
         'only_matching': True,
     }, {
         'url': 'https://www.youtube.com/c/gametrailers',
         'only_matching': True,

+    }, {
+        'url': 'https://www.youtube.com/gametrailers',
+        'only_matching': True,
+    }, {
+        # This channel is not available.
+        'url': 'https://www.youtube.com/user/kananishinoSMEJ/videos',
+        'only_matching': True,

     }]
 
     @classmethod
     }]
 
     @classmethod


@@ -2020,14 +2168,18 @@ class YoutubeUserIE(YoutubeChannelIE):
         else:
             return super(YoutubeUserIE, cls).suitable(url)
 
         else:
             return super(YoutubeUserIE, cls).suitable(url)
 

+    def _build_template_url(self, url, channel_id):
+        mobj = re.match(self._VALID_URL, url)
+        return self._TEMPLATE_URL % (mobj.group('user') or 'user', mobj.group('id'))
+

 
 class YoutubeLiveIE(YoutubeBaseInfoExtractor):
     IE_DESC = 'YouTube.com live streams'
 
 class YoutubeLiveIE(YoutubeBaseInfoExtractor):
     IE_DESC = 'YouTube.com live streams'

-    _VALID_URL = r'(?P<base_url>https?://(?:\w+\.)?youtube\.com/(?:user|channel)/(?P<id>[^/]+))/live'
+    _VALID_URL = r'(?P<base_url>https?://(?:\w+\.)?youtube\.com/(?:(?:user|channel|c)/)?(?P<id>[^/]+))/live'

     IE_NAME = 'youtube:live'
 
     _TESTS = [{
     IE_NAME = 'youtube:live'
 
     _TESTS = [{

-        'url': 'http://www.youtube.com/user/TheYoungTurks/live',
+        'url': 'https://www.youtube.com/user/TheYoungTurks/live',

         'info_dict': {
             'id': 'a48o2S1cPoo',
             'ext': 'mp4',
         'info_dict': {
             'id': 'a48o2S1cPoo',
             'ext': 'mp4',


@@ -2047,7 +2199,13 @@ class YoutubeLiveIE(YoutubeBaseInfoExtractor):
             'skip_download': True,
         },
     }, {
             'skip_download': True,
         },
     }, {

-        'url': 'http://www.youtube.com/channel/UC1yBKRuGpC1tSM73A0ZjYjQ/live',
+        'url': 'https://www.youtube.com/channel/UC1yBKRuGpC1tSM73A0ZjYjQ/live',
+        'only_matching': True,
+    }, {
+        'url': 'https://www.youtube.com/c/CommanderVideoHq/live',
+        'only_matching': True,
+    }, {
+        'url': 'https://www.youtube.com/TheYoungTurks/live',

         'only_matching': True,
     }]
 
         'only_matching': True,
     }]
 


@@ -2072,7 +2230,7 @@ class YoutubePlaylistsIE(YoutubePlaylistsBaseInfoExtractor):
     IE_NAME = 'youtube:playlists'
 
     _TESTS = [{
     IE_NAME = 'youtube:playlists'
 
     _TESTS = [{

-        'url': 'http://www.youtube.com/user/ThirstForScience/playlists',
+        'url': 'https://www.youtube.com/user/ThirstForScience/playlists',

         'playlist_mincount': 4,
         'info_dict': {
             'id': 'ThirstForScience',
         'playlist_mincount': 4,
         'info_dict': {
             'id': 'ThirstForScience',


@@ -2080,7 +2238,7 @@ class YoutubePlaylistsIE(YoutubePlaylistsBaseInfoExtractor):
         },
     }, {
         # with "Load more" button
         },
     }, {
         # with "Load more" button

-        'url': 'http://www.youtube.com/user/igorkle1/playlists?view=1&sort=dd',
+        'url': 'https://www.youtube.com/user/igorkle1/playlists?view=1&sort=dd',

         'playlist_mincount': 70,
         'info_dict': {
             'id': 'igorkle1',
         'playlist_mincount': 70,
         'info_dict': {
             'id': 'igorkle1',


@@ -2173,7 +2331,7 @@ class YoutubeSearchURLIE(YoutubePlaylistBaseInfoExtractor):
 
 class YoutubeShowIE(YoutubePlaylistsBaseInfoExtractor):
     IE_DESC = 'YouTube.com (multi-season) shows'
 
 class YoutubeShowIE(YoutubePlaylistsBaseInfoExtractor):
     IE_DESC = 'YouTube.com (multi-season) shows'

-    _VALID_URL = r'https?://www\.youtube\.com/show/(?P<id>[^?#]*)'
+    _VALID_URL = r'https?://(?:www\.)?youtube\.com/show/(?P<id>[^?#]*)'

     IE_NAME = 'youtube:show'
     _TESTS = [{
         'url': 'https://www.youtube.com/show/airdisasters',
     IE_NAME = 'youtube:show'
     _TESTS = [{
         'url': 'https://www.youtube.com/show/airdisasters',


@@ -2242,7 +2400,7 @@ class YoutubeFeedsInfoExtractor(YoutubeBaseInfoExtractor):
 class YoutubeWatchLaterIE(YoutubePlaylistIE):
     IE_NAME = 'youtube:watchlater'
     IE_DESC = 'Youtube watch later list, ":ytwatchlater" for short (requires authentication)'
 class YoutubeWatchLaterIE(YoutubePlaylistIE):
     IE_NAME = 'youtube:watchlater'
     IE_DESC = 'Youtube watch later list, ":ytwatchlater" for short (requires authentication)'

-    _VALID_URL = r'https?://www\.youtube\.com/(?:feed/watch_later|(?:playlist|watch)\?(?:.+&)?list=WL)|:ytwatchlater'
+    _VALID_URL = r'https?://(?:www\.)?youtube\.com/(?:feed/watch_later|(?:playlist|watch)\?(?:.+&)?list=WL)|:ytwatchlater'

 
     _TESTS = [{
         'url': 'https://www.youtube.com/playlist?list=WL',
 
     _TESTS = [{
         'url': 'https://www.youtube.com/playlist?list=WL',


@@ -2253,16 +2411,17 @@ class YoutubeWatchLaterIE(YoutubePlaylistIE):
     }]
 
     def _real_extract(self, url):
     }]
 
     def _real_extract(self, url):

-        video = self._check_download_just_video(url, 'WL')
+        _, video = self._check_download_just_video(url, 'WL')

         if video:
             return video
         if video:
             return video

-        return self._extract_playlist('WL')
+        _, playlist = self._extract_playlist('WL')
+        return playlist

 
 
 class YoutubeFavouritesIE(YoutubeBaseInfoExtractor):
     IE_NAME = 'youtube:favorites'
     IE_DESC = 'YouTube.com favourite videos, ":ytfav" for short (requires authentication)'
 
 
 class YoutubeFavouritesIE(YoutubeBaseInfoExtractor):
     IE_NAME = 'youtube:favorites'
     IE_DESC = 'YouTube.com favourite videos, ":ytfav" for short (requires authentication)'

-    _VALID_URL = r'https?://www\.youtube\.com/my_favorites|:ytfav(?:ou?rites)?'
+    _VALID_URL = r'https?://(?:www\.)?youtube\.com/my_favorites|:ytfav(?:ou?rites)?'

     _LOGIN_REQUIRED = True
 
     def _real_extract(self, url):
     _LOGIN_REQUIRED = True
 
     def _real_extract(self, url):


@@ -2273,21 +2432,21 @@ class YoutubeFavouritesIE(YoutubeBaseInfoExtractor):
 
 class YoutubeRecommendedIE(YoutubeFeedsInfoExtractor):
     IE_DESC = 'YouTube.com recommended videos, ":ytrec" for short (requires authentication)'
 
 class YoutubeRecommendedIE(YoutubeFeedsInfoExtractor):
     IE_DESC = 'YouTube.com recommended videos, ":ytrec" for short (requires authentication)'

-    _VALID_URL = r'https?://www\.youtube\.com/feed/recommended|:ytrec(?:ommended)?'
+    _VALID_URL = r'https?://(?:www\.)?youtube\.com/feed/recommended|:ytrec(?:ommended)?'

     _FEED_NAME = 'recommended'
     _PLAYLIST_TITLE = 'Youtube Recommended videos'
 
 
 class YoutubeSubscriptionsIE(YoutubeFeedsInfoExtractor):
     IE_DESC = 'YouTube.com subscriptions feed, "ytsubs" keyword (requires authentication)'
     _FEED_NAME = 'recommended'
     _PLAYLIST_TITLE = 'Youtube Recommended videos'
 
 
 class YoutubeSubscriptionsIE(YoutubeFeedsInfoExtractor):
     IE_DESC = 'YouTube.com subscriptions feed, "ytsubs" keyword (requires authentication)'

-    _VALID_URL = r'https?://www\.youtube\.com/feed/subscriptions|:ytsubs(?:criptions)?'
+    _VALID_URL = r'https?://(?:www\.)?youtube\.com/feed/subscriptions|:ytsubs(?:criptions)?'

     _FEED_NAME = 'subscriptions'
     _PLAYLIST_TITLE = 'Youtube Subscriptions'
 
 
 class YoutubeHistoryIE(YoutubeFeedsInfoExtractor):
     IE_DESC = 'Youtube watch history, ":ythistory" for short (requires authentication)'
     _FEED_NAME = 'subscriptions'
     _PLAYLIST_TITLE = 'Youtube Subscriptions'
 
 
 class YoutubeHistoryIE(YoutubeFeedsInfoExtractor):
     IE_DESC = 'Youtube watch history, ":ythistory" for short (requires authentication)'

-    _VALID_URL = 'https?://www\.youtube\.com/feed/history|:ythistory'
+    _VALID_URL = r'https?://(?:www\.)?youtube\.com/feed/history|:ythistory'

     _FEED_NAME = 'history'
     _PLAYLIST_TITLE = 'Youtube History'
 
     _FEED_NAME = 'history'
     _PLAYLIST_TITLE = 'Youtube History'
 


@@ -2312,10 +2471,10 @@ class YoutubeTruncatedURLIE(InfoExtractor):
     '''
 
     _TESTS = [{
     '''
 
     _TESTS = [{

-        'url': 'http://www.youtube.com/watch?annotation_id=annotation_3951667041',
+        'url': 'https://www.youtube.com/watch?annotation_id=annotation_3951667041',

         'only_matching': True,
     }, {
         'only_matching': True,
     }, {

-        'url': 'http://www.youtube.com/watch?',
+        'url': 'https://www.youtube.com/watch?',

         'only_matching': True,
     }, {
         'url': 'https://www.youtube.com/watch?x-yt-cl=84503534',
         'only_matching': True,
     }, {
         'url': 'https://www.youtube.com/watch?x-yt-cl=84503534',


@@ -2336,7 +2495,7 @@ class YoutubeTruncatedURLIE(InfoExtractor):
             'Did you forget to quote the URL? Remember that & is a meta '
             'character in most shells, so you want to put the URL in quotes, '
             'like  youtube-dl '
             'Did you forget to quote the URL? Remember that & is a meta '
             'character in most shells, so you want to put the URL in quotes, '
             'like  youtube-dl '

-            '"http://www.youtube.com/watch?feature=foo&v=BaW_jenozKc" '
+            '"https://www.youtube.com/watch?feature=foo&v=BaW_jenozKc" '

             ' or simply  youtube-dl BaW_jenozKc  .',
             expected=True)
 
             ' or simply  youtube-dl BaW_jenozKc  .',
             expected=True)