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