[subtitles] Also list the available automatic captions languages with '--list-sub'
[youtube-dl] / youtube_dl / extractor / youtube.py
1 # coding: utf-8
2
3 import json
4 import netrc
5 import re
6 import socket
7 import itertools
8 import xml.etree.ElementTree
9
10 from .common import InfoExtractor, SearchInfoExtractor
11 from .subtitles import SubtitlesInfoExtractor
12 from ..utils import (
13     compat_http_client,
14     compat_parse_qs,
15     compat_urllib_error,
16     compat_urllib_parse,
17     compat_urllib_request,
18     compat_str,
19
20     clean_html,
21     get_element_by_id,
22     ExtractorError,
23     unescapeHTML,
24     unified_strdate,
25     orderedSet,
26 )
27
28 class YoutubeBaseInfoExtractor(InfoExtractor):
29     """Provide base functions for Youtube extractors"""
30     _LOGIN_URL = 'https://accounts.google.com/ServiceLogin'
31     _LANG_URL = r'https://www.youtube.com/?hl=en&persist_hl=1&gl=US&persist_gl=1&opt_out_ackd=1'
32     _AGE_URL = 'http://www.youtube.com/verify_age?next_url=/&gl=US&hl=en'
33     _NETRC_MACHINE = 'youtube'
34     # If True it will raise an error if no login info is provided
35     _LOGIN_REQUIRED = False
36
37     def report_lang(self):
38         """Report attempt to set language."""
39         self.to_screen(u'Setting language')
40
41     def _set_language(self):
42         request = compat_urllib_request.Request(self._LANG_URL)
43         try:
44             self.report_lang()
45             compat_urllib_request.urlopen(request).read()
46         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
47             self._downloader.report_warning(u'unable to set language: %s' % compat_str(err))
48             return False
49         return True
50
51     def _login(self):
52         (username, password) = self._get_login_info()
53         # No authentication to be performed
54         if username is None:
55             if self._LOGIN_REQUIRED:
56                 raise ExtractorError(u'No login info available, needed for using %s.' % self.IE_NAME, expected=True)
57             return False
58
59         request = compat_urllib_request.Request(self._LOGIN_URL)
60         try:
61             login_page = compat_urllib_request.urlopen(request).read().decode('utf-8')
62         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
63             self._downloader.report_warning(u'unable to fetch login page: %s' % compat_str(err))
64             return False
65
66         galx = None
67         dsh = None
68         match = re.search(re.compile(r'<input.+?name="GALX".+?value="(.+?)"', re.DOTALL), login_page)
69         if match:
70           galx = match.group(1)
71         match = re.search(re.compile(r'<input.+?name="dsh".+?value="(.+?)"', re.DOTALL), login_page)
72         if match:
73           dsh = match.group(1)
74
75         # Log in
76         login_form_strs = {
77                 u'continue': u'https://www.youtube.com/signin?action_handle_signin=true&feature=sign_in_button&hl=en_US&nomobiletemp=1',
78                 u'Email': username,
79                 u'GALX': galx,
80                 u'Passwd': password,
81                 u'PersistentCookie': u'yes',
82                 u'_utf8': u'霱',
83                 u'bgresponse': u'js_disabled',
84                 u'checkConnection': u'',
85                 u'checkedDomains': u'youtube',
86                 u'dnConn': u'',
87                 u'dsh': dsh,
88                 u'pstMsg': u'0',
89                 u'rmShown': u'1',
90                 u'secTok': u'',
91                 u'signIn': u'Sign in',
92                 u'timeStmp': u'',
93                 u'service': u'youtube',
94                 u'uilel': u'3',
95                 u'hl': u'en_US',
96         }
97         # Convert to UTF-8 *before* urlencode because Python 2.x's urlencode
98         # chokes on unicode
99         login_form = dict((k.encode('utf-8'), v.encode('utf-8')) for k,v in login_form_strs.items())
100         login_data = compat_urllib_parse.urlencode(login_form).encode('ascii')
101         request = compat_urllib_request.Request(self._LOGIN_URL, login_data)
102         try:
103             self.report_login()
104             login_results = compat_urllib_request.urlopen(request).read().decode('utf-8')
105             if re.search(r'(?i)<form[^>]* id="gaia_loginform"', login_results) is not None:
106                 self._downloader.report_warning(u'unable to log in: bad username or password')
107                 return False
108         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
109             self._downloader.report_warning(u'unable to log in: %s' % compat_str(err))
110             return False
111         return True
112
113     def _confirm_age(self):
114         age_form = {
115                 'next_url':     '/',
116                 'action_confirm':   'Confirm',
117                 }
118         request = compat_urllib_request.Request(self._AGE_URL, compat_urllib_parse.urlencode(age_form))
119         try:
120             self.report_age_confirmation()
121             compat_urllib_request.urlopen(request).read().decode('utf-8')
122         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
123             raise ExtractorError(u'Unable to confirm age: %s' % compat_str(err))
124         return True
125
126     def _real_initialize(self):
127         if self._downloader is None:
128             return
129         if not self._set_language():
130             return
131         if not self._login():
132             return
133         self._confirm_age()
134
135
136 class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
137     IE_DESC = u'YouTube.com'
138     _VALID_URL = r"""^
139                      (
140                          (?:https?://)?                                       # http(s):// (optional)
141                          (?:(?:(?:(?:\w+\.)?youtube(?:-nocookie)?\.com/|
142                             tube\.majestyc\.net/)                             # the various hostnames, with wildcard subdomains
143                          (?:.*?\#/)?                                          # handle anchor (#/) redirect urls
144                          (?:                                                  # the various things that can precede the ID:
145                              (?:(?:v|embed|e)/)                               # v/ or embed/ or e/
146                              |(?:                                             # or the v= param in all its forms
147                                  (?:(?:watch|movie)(?:_popup)?(?:\.php)?)?    # preceding watch(_popup|.php) or nothing (like /?v=xxxx)
148                                  (?:\?|\#!?)                                  # the params delimiter ? or # or #!
149                                  (?:.*?&)?                                    # any other preceding param (like /?s=tuff&v=xxxx)
150                                  v=
151                              )
152                          ))
153                          |youtu\.be/                                          # just youtu.be/xxxx
154                          )
155                      )?                                                       # all until now is optional -> you can pass the naked ID
156                      ([0-9A-Za-z_-]{11})                                      # here is it! the YouTube video ID
157                      (?(1).+)?                                                # if we found the ID, everything can follow
158                      $"""
159     _NEXT_URL_RE = r'[\?&]next_url=([^&]+)'
160     # Listed in order of quality
161     _available_formats = ['38', '37', '46', '22', '45', '35', '44', '34', '18', '43', '6', '5', '36', '17', '13',
162                           # Apple HTTP Live Streaming
163                           '96', '95', '94', '93', '92', '132', '151',
164                           # 3D
165                           '85', '84', '102', '83', '101', '82', '100',
166                           # Dash video
167                           '138', '137', '248', '136', '247', '135', '246',
168                           '245', '244', '134', '243', '133', '242', '160',
169                           # Dash audio
170                           '141', '172', '140', '171', '139',
171                           ]
172     _available_formats_prefer_free = ['38', '46', '37', '45', '22', '44', '35', '43', '34', '18', '6', '5', '36', '17', '13',
173                                       # Apple HTTP Live Streaming
174                                       '96', '95', '94', '93', '92', '132', '151',
175                                       # 3D
176                                       '85', '102', '84', '101', '83', '100', '82',
177                                       # Dash video
178                                       '138', '248', '137', '247', '136', '246', '245',
179                                       '244', '135', '243', '134', '242', '133', '160',
180                                       # Dash audio
181                                       '172', '141', '171', '140', '139',
182                                       ]
183     _video_formats_map = {
184         'flv': ['35', '34', '6', '5'],
185         '3gp': ['36', '17', '13'],
186         'mp4': ['38', '37', '22', '18'],
187         'webm': ['46', '45', '44', '43'],
188     }
189     _video_extensions = {
190         '13': '3gp',
191         '17': '3gp',
192         '18': 'mp4',
193         '22': 'mp4',
194         '36': '3gp',
195         '37': 'mp4',
196         '38': 'mp4',
197         '43': 'webm',
198         '44': 'webm',
199         '45': 'webm',
200         '46': 'webm',
201
202         # 3d videos
203         '82': 'mp4',
204         '83': 'mp4',
205         '84': 'mp4',
206         '85': 'mp4',
207         '100': 'webm',
208         '101': 'webm',
209         '102': 'webm',
210
211         # Apple HTTP Live Streaming
212         '92': 'mp4',
213         '93': 'mp4',
214         '94': 'mp4',
215         '95': 'mp4',
216         '96': 'mp4',
217         '132': 'mp4',
218         '151': 'mp4',
219
220         # Dash mp4
221         '133': 'mp4',
222         '134': 'mp4',
223         '135': 'mp4',
224         '136': 'mp4',
225         '137': 'mp4',
226         '138': 'mp4',
227         '139': 'mp4',
228         '140': 'mp4',
229         '141': 'mp4',
230         '160': 'mp4',
231
232         # Dash webm
233         '171': 'webm',
234         '172': 'webm',
235         '242': 'webm',
236         '243': 'webm',
237         '244': 'webm',
238         '245': 'webm',
239         '246': 'webm',
240         '247': 'webm',
241         '248': 'webm',
242     }
243     _video_dimensions = {
244         '5': '240x400',
245         '6': '???',
246         '13': '???',
247         '17': '144x176',
248         '18': '360x640',
249         '22': '720x1280',
250         '34': '360x640',
251         '35': '480x854',
252         '36': '240x320',
253         '37': '1080x1920',
254         '38': '3072x4096',
255         '43': '360x640',
256         '44': '480x854',
257         '45': '720x1280',
258         '46': '1080x1920',
259         '82': '360p',
260         '83': '480p',
261         '84': '720p',
262         '85': '1080p',
263         '92': '240p',
264         '93': '360p',
265         '94': '480p',
266         '95': '720p',
267         '96': '1080p',
268         '100': '360p',
269         '101': '480p',
270         '102': '720p',
271         '132': '240p',
272         '151': '72p',
273         '133': '240p',
274         '134': '360p',
275         '135': '480p',
276         '136': '720p',
277         '137': '1080p',
278         '138': '>1080p',
279         '139': '48k',
280         '140': '128k',
281         '141': '256k',
282         '160': '192p',
283         '171': '128k',
284         '172': '256k',
285         '242': '240p',
286         '243': '360p',
287         '244': '480p',
288         '245': '480p',
289         '246': '480p',
290         '247': '720p',
291         '248': '1080p',
292     }
293     _special_itags = {
294         '82': '3D',
295         '83': '3D',
296         '84': '3D',
297         '85': '3D',
298         '100': '3D',
299         '101': '3D',
300         '102': '3D',
301         '133': 'DASH Video',
302         '134': 'DASH Video',
303         '135': 'DASH Video',
304         '136': 'DASH Video',
305         '137': 'DASH Video',
306         '138': 'DASH Video',
307         '139': 'DASH Audio',
308         '140': 'DASH Audio',
309         '141': 'DASH Audio',
310         '160': 'DASH Video',
311         '171': 'DASH Audio',
312         '172': 'DASH Audio',
313         '242': 'DASH Video',
314         '243': 'DASH Video',
315         '244': 'DASH Video',
316         '245': 'DASH Video',
317         '246': 'DASH Video',
318         '247': 'DASH Video',
319         '248': 'DASH Video',
320     }
321
322     IE_NAME = u'youtube'
323     _TESTS = [
324         {
325             u"url":  u"http://www.youtube.com/watch?v=BaW_jenozKc",
326             u"file":  u"BaW_jenozKc.mp4",
327             u"info_dict": {
328                 u"title": u"youtube-dl test video \"'/\\ä↭𝕐",
329                 u"uploader": u"Philipp Hagemeister",
330                 u"uploader_id": u"phihag",
331                 u"upload_date": u"20121002",
332                 u"description": u"test chars:  \"'/\\ä↭𝕐\n\nThis is a test video for youtube-dl.\n\nFor more information, contact phihag@phihag.de ."
333             }
334         },
335         {
336             u"url":  u"http://www.youtube.com/watch?v=1ltcDfZMA3U",
337             u"file":  u"1ltcDfZMA3U.flv",
338             u"note": u"Test VEVO video (#897)",
339             u"info_dict": {
340                 u"upload_date": u"20070518",
341                 u"title": u"Maps - It Will Find You",
342                 u"description": u"Music video by Maps performing It Will Find You.",
343                 u"uploader": u"MuteUSA",
344                 u"uploader_id": u"MuteUSA"
345             }
346         },
347         {
348             u"url":  u"http://www.youtube.com/watch?v=UxxajLWwzqY",
349             u"file":  u"UxxajLWwzqY.mp4",
350             u"note": u"Test generic use_cipher_signature video (#897)",
351             u"info_dict": {
352                 u"upload_date": u"20120506",
353                 u"title": u"Icona Pop - I Love It (feat. Charli XCX) [OFFICIAL VIDEO]",
354                 u"description": u"md5:3e2666e0a55044490499ea45fe9037b7",
355                 u"uploader": u"Icona Pop",
356                 u"uploader_id": u"IconaPop"
357             }
358         },
359         {
360             u"url":  u"https://www.youtube.com/watch?v=07FYdnEawAQ",
361             u"file":  u"07FYdnEawAQ.mp4",
362             u"note": u"Test VEVO video with age protection (#956)",
363             u"info_dict": {
364                 u"upload_date": u"20130703",
365                 u"title": u"Justin Timberlake - Tunnel Vision (Explicit)",
366                 u"description": u"md5:64249768eec3bc4276236606ea996373",
367                 u"uploader": u"justintimberlakeVEVO",
368                 u"uploader_id": u"justintimberlakeVEVO"
369             }
370         },
371         {
372             u'url': u'https://www.youtube.com/watch?v=TGi3HqYrWHE',
373             u'file': u'TGi3HqYrWHE.mp4',
374             u'note': u'm3u8 video',
375             u'info_dict': {
376                 u'title': u'Triathlon - Men - London 2012 Olympic Games',
377                 u'description': u'- Men -  TR02 - Triathlon - 07 August 2012 - London 2012 Olympic Games',
378                 u'uploader': u'olympic',
379                 u'upload_date': u'20120807',
380                 u'uploader_id': u'olympic',
381             },
382             u'params': {
383                 u'skip_download': True,
384             },
385         },
386     ]
387
388
389     @classmethod
390     def suitable(cls, url):
391         """Receives a URL and returns True if suitable for this IE."""
392         if YoutubePlaylistIE.suitable(url): return False
393         return re.match(cls._VALID_URL, url, re.VERBOSE) is not None
394
395     def report_video_webpage_download(self, video_id):
396         """Report attempt to download video webpage."""
397         self.to_screen(u'%s: Downloading video webpage' % video_id)
398
399     def report_video_info_webpage_download(self, video_id):
400         """Report attempt to download video info webpage."""
401         self.to_screen(u'%s: Downloading video info webpage' % video_id)
402
403     def report_information_extraction(self, video_id):
404         """Report attempt to extract video information."""
405         self.to_screen(u'%s: Extracting video information' % video_id)
406
407     def report_unavailable_format(self, video_id, format):
408         """Report extracted video URL."""
409         self.to_screen(u'%s: Format %s not available' % (video_id, format))
410
411     def report_rtmp_download(self):
412         """Indicate the download will use the RTMP protocol."""
413         self.to_screen(u'RTMP download detected')
414
415     def _decrypt_signature(self, s):
416         """Turn the encrypted s field into a working signature"""
417
418         if len(s) == 92:
419             return s[25] + s[3:25] + s[0] + s[26:42] + s[79] + s[43:79] + s[91] + s[80:83]
420         elif len(s) == 90:
421             return s[25] + s[3:25] + s[2] + s[26:40] + s[77] + s[41:77] + s[89] + s[78:81]
422         elif len(s) == 89:
423             return s[84:78:-1] + s[87] + s[77:60:-1] + s[0] + s[59:3:-1]
424         elif len(s) == 88:
425             return s[7:28] + s[87] + s[29:45] + s[55] + s[46:55] + s[2] + s[56:87] + s[28]
426         elif len(s) == 87:
427             return s[6:27] + s[4] + s[28:39] + s[27] + s[40:59] + s[2] + s[60:]
428         elif len(s) == 86:
429             return s[5:34] + s[0] + s[35:38] + s[3] + s[39:45] + s[38] + s[46:53] + s[73] + s[54:73] + s[85] + s[74:85] + s[53]
430         elif len(s) == 85:
431             return s[40] + s[82:43:-1] + s[22] + s[42:40:-1] + s[83] + s[39:22:-1] + s[0] + s[21:2:-1]
432         elif len(s) == 84:
433             return s[81:36:-1] + s[0] + s[35:2:-1]
434         elif len(s) == 83:
435             return s[81:64:-1] + s[82] + s[63:52:-1] + s[45] + s[51:45:-1] + s[1] + s[44:1:-1] + s[0]
436         elif len(s) == 82:
437             return s[1:19] + s[0] + s[20:68] + s[19] + s[69:82]
438         elif len(s) == 81:
439             return s[56] + s[79:56:-1] + s[41] + s[55:41:-1] + s[80] + s[40:34:-1] + s[0] + s[33:29:-1] + s[34] + s[28:9:-1] + s[29] + s[8:0:-1] + s[9]
440         elif len(s) == 80:
441             return s[1:19] + s[0] + s[20:68] + s[19] + s[69:80]
442         elif len(s) == 79:
443             return s[54] + s[77:54:-1] + s[39] + s[53:39:-1] + s[78] + s[38:34:-1] + s[0] + s[33:29:-1] + s[34] + s[28:9:-1] + s[29] + s[8:0:-1] + s[9]
444
445         else:
446             raise ExtractorError(u'Unable to decrypt signature, key length %d not supported; retrying might work' % (len(s)))
447
448     def _decrypt_signature_age_gate(self, s):
449         # The videos with age protection use another player, so the algorithms
450         # can be different.
451         if len(s) == 86:
452             return s[2:63] + s[82] + s[64:82] + s[63]
453         else:
454             # Fallback to the other algortihms
455             return self._decrypt_signature(s)
456
457     def _get_available_subtitles(self, video_id):
458         try:
459             sub_list = self._download_webpage(
460                 'http://video.google.com/timedtext?hl=en&type=list&v=%s' % video_id,
461                 video_id, note=False)
462         except ExtractorError as err:
463             self._downloader.report_warning(u'unable to download video subtitles: %s' % compat_str(err))
464             return {}
465         lang_list = re.findall(r'name="([^"]*)"[^>]+lang_code="([\w\-]+)"', sub_list)
466
467         sub_lang_list = {}
468         for l in lang_list:
469             lang = l[1]
470             params = compat_urllib_parse.urlencode({
471                 'lang': lang,
472                 'v': video_id,
473                 'fmt': self._downloader.params.get('subtitlesformat'),
474             })
475             url = u'http://www.youtube.com/api/timedtext?' + params
476             sub_lang_list[lang] = url
477         if not sub_lang_list:
478             self._downloader.report_warning(u'video doesn\'t have subtitles')
479             return {}
480         return sub_lang_list
481
482     def _get_available_automatic_caption(self, video_id, webpage):
483         """We need the webpage for getting the captions url, pass it as an
484            argument to speed up the process."""
485         sub_format = self._downloader.params.get('subtitlesformat')
486         self.to_screen(u'%s: Looking for automatic captions' % video_id)
487         mobj = re.search(r';ytplayer.config = ({.*?});', webpage)
488         err_msg = u'Couldn\'t find automatic captions for %s' % video_id
489         if mobj is None:
490             self._downloader.report_warning(err_msg)
491             return {}
492         player_config = json.loads(mobj.group(1))
493         try:
494             args = player_config[u'args']
495             caption_url = args[u'ttsurl']
496             timestamp = args[u'timestamp']
497             # We get the available subtitles
498             list_params = compat_urllib_parse.urlencode({
499                 'type': 'list',
500                 'tlangs': 1,
501                 'asrs': 1,
502             })
503             list_url = caption_url + '&' + list_params
504             list_page = self._download_webpage(list_url, video_id)
505             caption_list = xml.etree.ElementTree.fromstring(list_page.encode('utf-8'))
506             original_lang = caption_list.find('track').attrib['lang_code']
507
508             sub_lang_list = {}
509             for lang_node in caption_list.findall('target'):
510                 sub_lang = lang_node.attrib['lang_code']
511                 params = compat_urllib_parse.urlencode({
512                     'lang': original_lang,
513                     'tlang': sub_lang,
514                     'fmt': sub_format,
515                     'ts': timestamp,
516                     'kind': 'asr',
517                 })
518                 sub_lang_list[sub_lang] = caption_url + '&' + params
519             return sub_lang_list
520         # An extractor error can be raise by the download process if there are
521         # no automatic captions but there are subtitles
522         except (KeyError, ExtractorError):
523             self._downloader.report_warning(err_msg)
524             return {}
525
526     def _print_formats(self, formats):
527         print('Available formats:')
528         for x in formats:
529             print('%s\t:\t%s\t[%s]%s' %(x, self._video_extensions.get(x, 'flv'),
530                                         self._video_dimensions.get(x, '???'),
531                                         ' ('+self._special_itags[x]+')' if x in self._special_itags else ''))
532
533     def _extract_id(self, url):
534         mobj = re.match(self._VALID_URL, url, re.VERBOSE)
535         if mobj is None:
536             raise ExtractorError(u'Invalid URL: %s' % url)
537         video_id = mobj.group(2)
538         return video_id
539
540     def _get_video_url_list(self, url_map):
541         """
542         Transform a dictionary in the format {itag:url} to a list of (itag, url)
543         with the requested formats.
544         """
545         req_format = self._downloader.params.get('format', None)
546         format_limit = self._downloader.params.get('format_limit', None)
547         available_formats = self._available_formats_prefer_free if self._downloader.params.get('prefer_free_formats', False) else self._available_formats
548         if format_limit is not None and format_limit in available_formats:
549             format_list = available_formats[available_formats.index(format_limit):]
550         else:
551             format_list = available_formats
552         existing_formats = [x for x in format_list if x in url_map]
553         if len(existing_formats) == 0:
554             raise ExtractorError(u'no known formats available for video')
555         if self._downloader.params.get('listformats', None):
556             self._print_formats(existing_formats)
557             return
558         if req_format is None or req_format == 'best':
559             video_url_list = [(existing_formats[0], url_map[existing_formats[0]])] # Best quality
560         elif req_format == 'worst':
561             video_url_list = [(existing_formats[-1], url_map[existing_formats[-1]])] # worst quality
562         elif req_format in ('-1', 'all'):
563             video_url_list = [(f, url_map[f]) for f in existing_formats] # All formats
564         else:
565             # Specific formats. We pick the first in a slash-delimeted sequence.
566             # Format can be specified as itag or 'mp4' or 'flv' etc. We pick the highest quality
567             # available in the specified format. For example,
568             # if '1/2/3/4' is requested and '2' and '4' are available, we pick '2'.
569             # if '1/mp4/3/4' is requested and '1' and '5' (is a mp4) are available, we pick '1'.
570             # if '1/mp4/3/4' is requested and '4' and '5' (is a mp4) are available, we pick '5'.
571             req_formats = req_format.split('/')
572             video_url_list = None
573             for rf in req_formats:
574                 if rf in url_map:
575                     video_url_list = [(rf, url_map[rf])]
576                     break
577                 if rf in self._video_formats_map:
578                     for srf in self._video_formats_map[rf]:
579                         if srf in url_map:
580                             video_url_list = [(srf, url_map[srf])]
581                             break
582                     else:
583                         continue
584                     break
585             if video_url_list is None:
586                 raise ExtractorError(u'requested format not available')
587         return video_url_list
588
589     def _extract_from_m3u8(self, manifest_url, video_id):
590         url_map = {}
591         def _get_urls(_manifest):
592             lines = _manifest.split('\n')
593             urls = filter(lambda l: l and not l.startswith('#'),
594                             lines)
595             return urls
596         manifest = self._download_webpage(manifest_url, video_id, u'Downloading formats manifest')
597         formats_urls = _get_urls(manifest)
598         for format_url in formats_urls:
599             itag = self._search_regex(r'itag/(\d+?)/', format_url, 'itag')
600             url_map[itag] = format_url
601         return url_map
602
603     def _real_extract(self, url):
604         if re.match(r'(?:https?://)?[^/]+/watch\?feature=[a-z_]+$', url):
605             self._downloader.report_warning(u'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\' (or simply  youtube-dl BaW_jenozKc  ).')
606
607         # Extract original video URL from URL with redirection, like age verification, using next_url parameter
608         mobj = re.search(self._NEXT_URL_RE, url)
609         if mobj:
610             url = 'https://www.youtube.com/' + compat_urllib_parse.unquote(mobj.group(1)).lstrip('/')
611         video_id = self._extract_id(url)
612
613         # Get video webpage
614         self.report_video_webpage_download(video_id)
615         url = 'https://www.youtube.com/watch?v=%s&gl=US&hl=en&has_verified=1' % video_id
616         request = compat_urllib_request.Request(url)
617         try:
618             video_webpage_bytes = compat_urllib_request.urlopen(request).read()
619         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
620             raise ExtractorError(u'Unable to download video webpage: %s' % compat_str(err))
621
622         video_webpage = video_webpage_bytes.decode('utf-8', 'ignore')
623
624         # Attempt to extract SWF player URL
625         mobj = re.search(r'swfConfig.*?"(http:\\/\\/.*?watch.*?-.*?\.swf)"', video_webpage)
626         if mobj is not None:
627             player_url = re.sub(r'\\(.)', r'\1', mobj.group(1))
628         else:
629             player_url = None
630
631         # Get video info
632         self.report_video_info_webpage_download(video_id)
633         if re.search(r'player-age-gate-content">', video_webpage) is not None:
634             self.report_age_confirmation()
635             age_gate = True
636             # We simulate the access to the video from www.youtube.com/v/{video_id}
637             # this can be viewed without login into Youtube
638             data = compat_urllib_parse.urlencode({'video_id': video_id,
639                                                   'el': 'embedded',
640                                                   'gl': 'US',
641                                                   'hl': 'en',
642                                                   'eurl': 'https://youtube.googleapis.com/v/' + video_id,
643                                                   'asv': 3,
644                                                   'sts':'1588',
645                                                   })
646             video_info_url = 'https://www.youtube.com/get_video_info?' + data
647             video_info_webpage = self._download_webpage(video_info_url, video_id,
648                                     note=False,
649                                     errnote='unable to download video info webpage')
650             video_info = compat_parse_qs(video_info_webpage)
651         else:
652             age_gate = False
653             for el_type in ['&el=embedded', '&el=detailpage', '&el=vevo', '']:
654                 video_info_url = ('https://www.youtube.com/get_video_info?&video_id=%s%s&ps=default&eurl=&gl=US&hl=en'
655                         % (video_id, el_type))
656                 video_info_webpage = self._download_webpage(video_info_url, video_id,
657                                         note=False,
658                                         errnote='unable to download video info webpage')
659                 video_info = compat_parse_qs(video_info_webpage)
660                 if 'token' in video_info:
661                     break
662         if 'token' not in video_info:
663             if 'reason' in video_info:
664                 raise ExtractorError(u'YouTube said: %s' % video_info['reason'][0], expected=True)
665             else:
666                 raise ExtractorError(u'"token" parameter not in video info for unknown reason')
667
668         # Check for "rental" videos
669         if 'ypc_video_rental_bar_text' in video_info and 'author' not in video_info:
670             raise ExtractorError(u'"rental" videos not supported')
671
672         # Start extracting information
673         self.report_information_extraction(video_id)
674
675         # uploader
676         if 'author' not in video_info:
677             raise ExtractorError(u'Unable to extract uploader name')
678         video_uploader = compat_urllib_parse.unquote_plus(video_info['author'][0])
679
680         # uploader_id
681         video_uploader_id = None
682         mobj = re.search(r'<link itemprop="url" href="http://www.youtube.com/(?:user|channel)/([^"]+)">', video_webpage)
683         if mobj is not None:
684             video_uploader_id = mobj.group(1)
685         else:
686             self._downloader.report_warning(u'unable to extract uploader nickname')
687
688         # title
689         if 'title' not in video_info:
690             raise ExtractorError(u'Unable to extract video title')
691         video_title = compat_urllib_parse.unquote_plus(video_info['title'][0])
692
693         # thumbnail image
694         # We try first to get a high quality image:
695         m_thumb = re.search(r'<span itemprop="thumbnail".*?href="(.*?)">',
696                             video_webpage, re.DOTALL)
697         if m_thumb is not None:
698             video_thumbnail = m_thumb.group(1)
699         elif 'thumbnail_url' not in video_info:
700             self._downloader.report_warning(u'unable to extract video thumbnail')
701             video_thumbnail = ''
702         else:   # don't panic if we can't find it
703             video_thumbnail = compat_urllib_parse.unquote_plus(video_info['thumbnail_url'][0])
704
705         # upload date
706         upload_date = None
707         mobj = re.search(r'id="eow-date.*?>(.*?)</span>', video_webpage, re.DOTALL)
708         if mobj is not None:
709             upload_date = ' '.join(re.sub(r'[/,-]', r' ', mobj.group(1)).split())
710             upload_date = unified_strdate(upload_date)
711
712         # description
713         video_description = get_element_by_id("eow-description", video_webpage)
714         if video_description:
715             video_description = clean_html(video_description)
716         else:
717             fd_mobj = re.search(r'<meta name="description" content="([^"]+)"', video_webpage)
718             if fd_mobj:
719                 video_description = unescapeHTML(fd_mobj.group(1))
720             else:
721                 video_description = u''
722
723         # subtitles
724         video_subtitles = self.extract_subtitles(video_id, video_webpage)
725
726         if self._downloader.params.get('listsubtitles', False):
727             self._list_available_subtitles(video_id, video_webpage)
728             return
729
730         if 'length_seconds' not in video_info:
731             self._downloader.report_warning(u'unable to extract video duration')
732             video_duration = ''
733         else:
734             video_duration = compat_urllib_parse.unquote_plus(video_info['length_seconds'][0])
735
736         # Decide which formats to download
737
738         try:
739             mobj = re.search(r';ytplayer.config = ({.*?});', video_webpage)
740             if not mobj:
741                 raise ValueError('Could not find vevo ID')
742             info = json.loads(mobj.group(1))
743             args = info['args']
744             # Easy way to know if the 's' value is in url_encoded_fmt_stream_map
745             # this signatures are encrypted
746             m_s = re.search(r'[&,]s=', args['url_encoded_fmt_stream_map'])
747             if m_s is not None:
748                 self.to_screen(u'%s: Encrypted signatures detected.' % video_id)
749                 video_info['url_encoded_fmt_stream_map'] = [args['url_encoded_fmt_stream_map']]
750             m_s = re.search(r'[&,]s=', args.get('adaptive_fmts', u''))
751             if m_s is not None:
752                 if 'url_encoded_fmt_stream_map' in video_info:
753                     video_info['url_encoded_fmt_stream_map'][0] += ',' + args['adaptive_fmts']
754                 else:
755                     video_info['url_encoded_fmt_stream_map'] = [args['adaptive_fmts']]
756             elif 'adaptive_fmts' in video_info:
757                 if 'url_encoded_fmt_stream_map' in video_info:
758                     video_info['url_encoded_fmt_stream_map'][0] += ',' + video_info['adaptive_fmts'][0]
759                 else:
760                     video_info['url_encoded_fmt_stream_map'] = video_info['adaptive_fmts']
761         except ValueError:
762             pass
763
764         if 'conn' in video_info and video_info['conn'][0].startswith('rtmp'):
765             self.report_rtmp_download()
766             video_url_list = [(None, video_info['conn'][0])]
767         elif 'url_encoded_fmt_stream_map' in video_info and len(video_info['url_encoded_fmt_stream_map']) >= 1:
768             if 'rtmpe%3Dyes' in video_info['url_encoded_fmt_stream_map'][0]:
769                 raise ExtractorError('rtmpe downloads are not supported, see https://github.com/rg3/youtube-dl/issues/343 for more information.', expected=True)
770             url_map = {}
771             for url_data_str in video_info['url_encoded_fmt_stream_map'][0].split(','):
772                 url_data = compat_parse_qs(url_data_str)
773                 if 'itag' in url_data and 'url' in url_data:
774                     url = url_data['url'][0]
775                     if 'sig' in url_data:
776                         url += '&signature=' + url_data['sig'][0]
777                     elif 's' in url_data:
778                         if self._downloader.params.get('verbose'):
779                             s = url_data['s'][0]
780                             if age_gate:
781                                 player_version = self._search_regex(r'ad3-(.+?)\.swf',
782                                     video_info['ad3_module'][0] if 'ad3_module' in video_info else 'NOT FOUND',
783                                     'flash player', fatal=False)
784                                 player = 'flash player %s' % player_version
785                             else:
786                                 player = u'html5 player %s' % self._search_regex(r'html5player-(.+?)\.js', video_webpage,
787                                     'html5 player', fatal=False)
788                             parts_sizes = u'.'.join(compat_str(len(part)) for part in s.split('.'))
789                             self.to_screen(u'encrypted signature length %d (%s), itag %s, %s' %
790                                 (len(s), parts_sizes, url_data['itag'][0], player))
791                         encrypted_sig = url_data['s'][0]
792                         if age_gate:
793                             signature = self._decrypt_signature_age_gate(encrypted_sig)
794                         else:
795                             signature = self._decrypt_signature(encrypted_sig)
796                         url += '&signature=' + signature
797                     if 'ratebypass' not in url:
798                         url += '&ratebypass=yes'
799                     url_map[url_data['itag'][0]] = url
800             video_url_list = self._get_video_url_list(url_map)
801             if not video_url_list:
802                 return
803         elif video_info.get('hlsvp'):
804             manifest_url = video_info['hlsvp'][0]
805             url_map = self._extract_from_m3u8(manifest_url, video_id)
806             video_url_list = self._get_video_url_list(url_map)
807             if not video_url_list:
808                 return
809
810         else:
811             raise ExtractorError(u'no conn or url_encoded_fmt_stream_map information found in video info')
812
813         results = []
814         for format_param, video_real_url in video_url_list:
815             # Extension
816             video_extension = self._video_extensions.get(format_param, 'flv')
817
818             video_format = '{0} - {1}{2}'.format(format_param if format_param else video_extension,
819                                               self._video_dimensions.get(format_param, '???'),
820                                               ' ('+self._special_itags[format_param]+')' if format_param in self._special_itags else '')
821
822             results.append({
823                 'id':       video_id,
824                 'url':      video_real_url,
825                 'uploader': video_uploader,
826                 'uploader_id': video_uploader_id,
827                 'upload_date':  upload_date,
828                 'title':    video_title,
829                 'ext':      video_extension,
830                 'format':   video_format,
831                 'thumbnail':    video_thumbnail,
832                 'description':  video_description,
833                 'player_url':   player_url,
834                 'subtitles':    video_subtitles,
835                 'duration':     video_duration
836             })
837         return results
838
839 class YoutubePlaylistIE(InfoExtractor):
840     IE_DESC = u'YouTube.com playlists'
841     _VALID_URL = r"""(?:
842                         (?:https?://)?
843                         (?:\w+\.)?
844                         youtube\.com/
845                         (?:
846                            (?:course|view_play_list|my_playlists|artist|playlist|watch)
847                            \? (?:.*?&)*? (?:p|a|list)=
848                         |  p/
849                         )
850                         ((?:PL|EC|UU|FL)?[0-9A-Za-z-_]{10,})
851                         .*
852                      |
853                         ((?:PL|EC|UU|FL)[0-9A-Za-z-_]{10,})
854                      )"""
855     _TEMPLATE_URL = 'https://gdata.youtube.com/feeds/api/playlists/%s?max-results=%i&start-index=%i&v=2&alt=json&safeSearch=none'
856     _MAX_RESULTS = 50
857     IE_NAME = u'youtube:playlist'
858
859     @classmethod
860     def suitable(cls, url):
861         """Receives a URL and returns True if suitable for this IE."""
862         return re.match(cls._VALID_URL, url, re.VERBOSE) is not None
863
864     def _real_extract(self, url):
865         # Extract playlist id
866         mobj = re.match(self._VALID_URL, url, re.VERBOSE)
867         if mobj is None:
868             raise ExtractorError(u'Invalid URL: %s' % url)
869
870         # Download playlist videos from API
871         playlist_id = mobj.group(1) or mobj.group(2)
872         videos = []
873
874         for page_num in itertools.count(1):
875             start_index = self._MAX_RESULTS * (page_num - 1) + 1
876             if start_index >= 1000:
877                 self._downloader.report_warning(u'Max number of results reached')
878                 break
879             url = self._TEMPLATE_URL % (playlist_id, self._MAX_RESULTS, start_index)
880             page = self._download_webpage(url, playlist_id, u'Downloading page #%s' % page_num)
881
882             try:
883                 response = json.loads(page)
884             except ValueError as err:
885                 raise ExtractorError(u'Invalid JSON in API response: ' + compat_str(err))
886
887             if 'feed' not in response:
888                 raise ExtractorError(u'Got a malformed response from YouTube API')
889             playlist_title = response['feed']['title']['$t']
890             if 'entry' not in response['feed']:
891                 # Number of videos is a multiple of self._MAX_RESULTS
892                 break
893
894             for entry in response['feed']['entry']:
895                 index = entry['yt$position']['$t']
896                 if 'media$group' in entry and 'yt$videoid' in entry['media$group']:
897                     videos.append((
898                         index,
899                         'https://www.youtube.com/watch?v=' + entry['media$group']['yt$videoid']['$t']
900                     ))
901
902         videos = [v[1] for v in sorted(videos)]
903
904         url_results = [self.url_result(vurl, 'Youtube') for vurl in videos]
905         return [self.playlist_result(url_results, playlist_id, playlist_title)]
906
907
908 class YoutubeChannelIE(InfoExtractor):
909     IE_DESC = u'YouTube.com channels'
910     _VALID_URL = r"^(?:https?://)?(?:youtu\.be|(?:\w+\.)?youtube(?:-nocookie)?\.com)/channel/([0-9A-Za-z_-]+)"
911     _TEMPLATE_URL = 'http://www.youtube.com/channel/%s/videos?sort=da&flow=list&view=0&page=%s&gl=US&hl=en'
912     _MORE_PAGES_INDICATOR = 'yt-uix-load-more'
913     _MORE_PAGES_URL = 'http://www.youtube.com/c4_browse_ajax?action_load_more_videos=1&flow=list&paging=%s&view=0&sort=da&channel_id=%s'
914     IE_NAME = u'youtube:channel'
915
916     def extract_videos_from_page(self, page):
917         ids_in_page = []
918         for mobj in re.finditer(r'href="/watch\?v=([0-9A-Za-z_-]+)&?', page):
919             if mobj.group(1) not in ids_in_page:
920                 ids_in_page.append(mobj.group(1))
921         return ids_in_page
922
923     def _real_extract(self, url):
924         # Extract channel id
925         mobj = re.match(self._VALID_URL, url)
926         if mobj is None:
927             raise ExtractorError(u'Invalid URL: %s' % url)
928
929         # Download channel page
930         channel_id = mobj.group(1)
931         video_ids = []
932         pagenum = 1
933
934         url = self._TEMPLATE_URL % (channel_id, pagenum)
935         page = self._download_webpage(url, channel_id,
936                                       u'Downloading page #%s' % pagenum)
937
938         # Extract video identifiers
939         ids_in_page = self.extract_videos_from_page(page)
940         video_ids.extend(ids_in_page)
941
942         # Download any subsequent channel pages using the json-based channel_ajax query
943         if self._MORE_PAGES_INDICATOR in page:
944             for pagenum in itertools.count(1):
945                 url = self._MORE_PAGES_URL % (pagenum, channel_id)
946                 page = self._download_webpage(url, channel_id,
947                                               u'Downloading page #%s' % pagenum)
948
949                 page = json.loads(page)
950
951                 ids_in_page = self.extract_videos_from_page(page['content_html'])
952                 video_ids.extend(ids_in_page)
953
954                 if self._MORE_PAGES_INDICATOR  not in page['load_more_widget_html']:
955                     break
956
957         self._downloader.to_screen(u'[youtube] Channel %s: Found %i videos' % (channel_id, len(video_ids)))
958
959         urls = ['http://www.youtube.com/watch?v=%s' % id for id in video_ids]
960         url_entries = [self.url_result(eurl, 'Youtube') for eurl in urls]
961         return [self.playlist_result(url_entries, channel_id)]
962
963
964 class YoutubeUserIE(InfoExtractor):
965     IE_DESC = u'YouTube.com user videos (URL or "ytuser" keyword)'
966     _VALID_URL = r'(?:(?:(?:https?://)?(?:\w+\.)?youtube\.com/(?:user/)?)|ytuser:)(?!feed/)([A-Za-z0-9_-]+)'
967     _TEMPLATE_URL = 'http://gdata.youtube.com/feeds/api/users/%s'
968     _GDATA_PAGE_SIZE = 50
969     _GDATA_URL = 'http://gdata.youtube.com/feeds/api/users/%s/uploads?max-results=%d&start-index=%d&alt=json'
970     IE_NAME = u'youtube:user'
971
972     @classmethod
973     def suitable(cls, url):
974         # Don't return True if the url can be extracted with other youtube
975         # extractor, the regex would is too permissive and it would match.
976         other_ies = iter(klass for (name, klass) in globals().items() if name.endswith('IE') and klass is not cls)
977         if any(ie.suitable(url) for ie in other_ies): return False
978         else: return super(YoutubeUserIE, cls).suitable(url)
979
980     def _real_extract(self, url):
981         # Extract username
982         mobj = re.match(self._VALID_URL, url)
983         if mobj is None:
984             raise ExtractorError(u'Invalid URL: %s' % url)
985
986         username = mobj.group(1)
987
988         # Download video ids using YouTube Data API. Result size per
989         # query is limited (currently to 50 videos) so we need to query
990         # page by page until there are no video ids - it means we got
991         # all of them.
992
993         video_ids = []
994
995         for pagenum in itertools.count(0):
996             start_index = pagenum * self._GDATA_PAGE_SIZE + 1
997
998             gdata_url = self._GDATA_URL % (username, self._GDATA_PAGE_SIZE, start_index)
999             page = self._download_webpage(gdata_url, username,
1000                                           u'Downloading video ids from %d to %d' % (start_index, start_index + self._GDATA_PAGE_SIZE))
1001
1002             try:
1003                 response = json.loads(page)
1004             except ValueError as err:
1005                 raise ExtractorError(u'Invalid JSON in API response: ' + compat_str(err))
1006
1007             # Extract video identifiers
1008             ids_in_page = []
1009             for entry in response['feed']['entry']:
1010                 ids_in_page.append(entry['id']['$t'].split('/')[-1])
1011             video_ids.extend(ids_in_page)
1012
1013             # A little optimization - if current page is not
1014             # "full", ie. does not contain PAGE_SIZE video ids then
1015             # we can assume that this page is the last one - there
1016             # are no more ids on further pages - no need to query
1017             # again.
1018
1019             if len(ids_in_page) < self._GDATA_PAGE_SIZE:
1020                 break
1021
1022         urls = ['http://www.youtube.com/watch?v=%s' % video_id for video_id in video_ids]
1023         url_results = [self.url_result(rurl, 'Youtube') for rurl in urls]
1024         return [self.playlist_result(url_results, playlist_title = username)]
1025
1026 class YoutubeSearchIE(SearchInfoExtractor):
1027     IE_DESC = u'YouTube.com searches'
1028     _API_URL = 'https://gdata.youtube.com/feeds/api/videos?q=%s&start-index=%i&max-results=50&v=2&alt=jsonc'
1029     _MAX_RESULTS = 1000
1030     IE_NAME = u'youtube:search'
1031     _SEARCH_KEY = 'ytsearch'
1032
1033     def report_download_page(self, query, pagenum):
1034         """Report attempt to download search page with given number."""
1035         self._downloader.to_screen(u'[youtube] query "%s": Downloading page %s' % (query, pagenum))
1036
1037     def _get_n_results(self, query, n):
1038         """Get a specified number of results for a query"""
1039
1040         video_ids = []
1041         pagenum = 0
1042         limit = n
1043
1044         while (50 * pagenum) < limit:
1045             self.report_download_page(query, pagenum+1)
1046             result_url = self._API_URL % (compat_urllib_parse.quote_plus(query), (50*pagenum)+1)
1047             request = compat_urllib_request.Request(result_url)
1048             try:
1049                 data = compat_urllib_request.urlopen(request).read().decode('utf-8')
1050             except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
1051                 raise ExtractorError(u'Unable to download API page: %s' % compat_str(err))
1052             api_response = json.loads(data)['data']
1053
1054             if not 'items' in api_response:
1055                 raise ExtractorError(u'[youtube] No video results')
1056
1057             new_ids = list(video['id'] for video in api_response['items'])
1058             video_ids += new_ids
1059
1060             limit = min(n, api_response['totalItems'])
1061             pagenum += 1
1062
1063         if len(video_ids) > n:
1064             video_ids = video_ids[:n]
1065         videos = [self.url_result('http://www.youtube.com/watch?v=%s' % id, 'Youtube') for id in video_ids]
1066         return self.playlist_result(videos, query)
1067
1068
1069 class YoutubeShowIE(InfoExtractor):
1070     IE_DESC = u'YouTube.com (multi-season) shows'
1071     _VALID_URL = r'https?://www\.youtube\.com/show/(.*)'
1072     IE_NAME = u'youtube:show'
1073
1074     def _real_extract(self, url):
1075         mobj = re.match(self._VALID_URL, url)
1076         show_name = mobj.group(1)
1077         webpage = self._download_webpage(url, show_name, u'Downloading show webpage')
1078         # There's one playlist for each season of the show
1079         m_seasons = list(re.finditer(r'href="(/playlist\?list=.*?)"', webpage))
1080         self.to_screen(u'%s: Found %s seasons' % (show_name, len(m_seasons)))
1081         return [self.url_result('https://www.youtube.com' + season.group(1), 'YoutubePlaylist') for season in m_seasons]
1082
1083
1084 class YoutubeFeedsInfoExtractor(YoutubeBaseInfoExtractor):
1085     """
1086     Base class for extractors that fetch info from
1087     http://www.youtube.com/feed_ajax
1088     Subclasses must define the _FEED_NAME and _PLAYLIST_TITLE properties.
1089     """
1090     _LOGIN_REQUIRED = True
1091     _PAGING_STEP = 30
1092     # use action_load_personal_feed instead of action_load_system_feed
1093     _PERSONAL_FEED = False
1094
1095     @property
1096     def _FEED_TEMPLATE(self):
1097         action = 'action_load_system_feed'
1098         if self._PERSONAL_FEED:
1099             action = 'action_load_personal_feed'
1100         return 'http://www.youtube.com/feed_ajax?%s=1&feed_name=%s&paging=%%s' % (action, self._FEED_NAME)
1101
1102     @property
1103     def IE_NAME(self):
1104         return u'youtube:%s' % self._FEED_NAME
1105
1106     def _real_initialize(self):
1107         self._login()
1108
1109     def _real_extract(self, url):
1110         feed_entries = []
1111         # The step argument is available only in 2.7 or higher
1112         for i in itertools.count(0):
1113             paging = i*self._PAGING_STEP
1114             info = self._download_webpage(self._FEED_TEMPLATE % paging,
1115                                           u'%s feed' % self._FEED_NAME,
1116                                           u'Downloading page %s' % i)
1117             info = json.loads(info)
1118             feed_html = info['feed_html']
1119             m_ids = re.finditer(r'"/watch\?v=(.*?)["&]', feed_html)
1120             ids = orderedSet(m.group(1) for m in m_ids)
1121             feed_entries.extend(self.url_result(id, 'Youtube') for id in ids)
1122             if info['paging'] is None:
1123                 break
1124         return self.playlist_result(feed_entries, playlist_title=self._PLAYLIST_TITLE)
1125
1126 class YoutubeSubscriptionsIE(YoutubeFeedsInfoExtractor):
1127     IE_DESC = u'YouTube.com subscriptions feed, "ytsubs" keyword(requires authentication)'
1128     _VALID_URL = r'https?://www\.youtube\.com/feed/subscriptions|:ytsubs(?:criptions)?'
1129     _FEED_NAME = 'subscriptions'
1130     _PLAYLIST_TITLE = u'Youtube Subscriptions'
1131
1132 class YoutubeRecommendedIE(YoutubeFeedsInfoExtractor):
1133     IE_DESC = u'YouTube.com recommended videos, "ytrec" keyword (requires authentication)'
1134     _VALID_URL = r'https?://www\.youtube\.com/feed/recommended|:ytrec(?:ommended)?'
1135     _FEED_NAME = 'recommended'
1136     _PLAYLIST_TITLE = u'Youtube Recommended videos'
1137
1138 class YoutubeWatchLaterIE(YoutubeFeedsInfoExtractor):
1139     IE_DESC = u'Youtube watch later list, "ytwatchlater" keyword (requires authentication)'
1140     _VALID_URL = r'https?://www\.youtube\.com/feed/watch_later|:ytwatchlater'
1141     _FEED_NAME = 'watch_later'
1142     _PLAYLIST_TITLE = u'Youtube Watch Later'
1143     _PAGING_STEP = 100
1144     _PERSONAL_FEED = True
1145
1146 class YoutubeFavouritesIE(YoutubeBaseInfoExtractor):
1147     IE_NAME = u'youtube:favorites'
1148     IE_DESC = u'YouTube.com favourite videos, "ytfav" keyword (requires authentication)'
1149     _VALID_URL = r'https?://www\.youtube\.com/my_favorites|:ytfav(?:ou?rites)?'
1150     _LOGIN_REQUIRED = True
1151
1152     def _real_extract(self, url):
1153         webpage = self._download_webpage('https://www.youtube.com/my_favorites', 'Youtube Favourites videos')
1154         playlist_id = self._search_regex(r'list=(.+?)["&]', webpage, u'favourites playlist id')
1155         return self.url_result(playlist_id, 'YoutubePlaylist')