youtube_dl/extractor/youtube.py

   1 # coding: utf-8
   2
   3 from __future__ import unicode_literals
   4
   5
   6 import itertools
   7 import json
   8 import os.path
   9 import re
  10 import time
  11 import traceback
  12
  13 from .common import InfoExtractor, SearchInfoExtractor
  14 from ..jsinterp import JSInterpreter
  15 from ..swfinterp import SWFInterpreter
  16 from ..compat import (
  17     compat_chr,
  18     compat_parse_qs,
  19     compat_urllib_parse,
  20     compat_urllib_parse_unquote,
  21     compat_urllib_parse_unquote_plus,
  22     compat_urllib_parse_urlparse,
  23     compat_urllib_request,
  24     compat_urlparse,
  25     compat_str,
  26 )
  27 from ..utils import (
  28     clean_html,
  29     ExtractorError,
  30     float_or_none,
  31     get_element_by_attribute,
  32     get_element_by_id,
  33     int_or_none,
  34     orderedSet,
  35     parse_duration,
  36     remove_start,
  37     smuggle_url,
  38     str_to_int,
  39     unescapeHTML,
  40     unified_strdate,
  41     unsmuggle_url,
  42     uppercase_escape,
  43     ISO3166Utils,
  44 )
  45
  46
  47 class YoutubeBaseInfoExtractor(InfoExtractor):
  48     """Provide base functions for Youtube extractors"""
  49     _LOGIN_URL = 'https://accounts.google.com/ServiceLogin'
  50     _TWOFACTOR_URL = 'https://accounts.google.com/signin/challenge'
  51     _NETRC_MACHINE = 'youtube'
  52     # If True it will raise an error if no login info is provided
  53     _LOGIN_REQUIRED = False
  54
  55     def _set_language(self):
  56         self._set_cookie(
  57             '.youtube.com', 'PREF', 'f1=50000000&hl=en',
  58             # YouTube sets the expire time to about two months
  59             expire_time=time.time() + 2 * 30 * 24 * 3600)
  60
  61     def _ids_to_results(self, ids):
  62         return [
  63             self.url_result(vid_id, 'Youtube', video_id=vid_id)
  64             for vid_id in ids]
  65
  66     def _login(self):
  67         """
  68         Attempt to log in to YouTube.
  69         True is returned if successful or skipped.
  70         False is returned if login failed.
  71
  72         If _LOGIN_REQUIRED is set and no authentication was provided, an error is raised.
  73         """
  74         (username, password) = self._get_login_info()
  75         # No authentication to be performed
  76         if username is None:
  77             if self._LOGIN_REQUIRED:
  78                 raise ExtractorError('No login info available, needed for using %s.' % self.IE_NAME, expected=True)
  79             return True
  80
  81         login_page = self._download_webpage(
  82             self._LOGIN_URL, None,
  83             note='Downloading login page',
  84             errnote='unable to fetch login page', fatal=False)
  85         if login_page is False:
  86             return
  87
  88         galx = self._search_regex(r'(?s)<input.+?name="GALX".+?value="(.+?)"',
  89                                   login_page, 'Login GALX parameter')
  90
  91         # Log in
  92         login_form_strs = {
  93             'continue': 'https://www.youtube.com/signin?action_handle_signin=true&feature=sign_in_button&hl=en_US&nomobiletemp=1',
  94             'Email': username,
  95             'GALX': galx,
  96             'Passwd': password,
  97
  98             'PersistentCookie': 'yes',
  99             '_utf8': '霱',
 100             'bgresponse': 'js_disabled',
 101             'checkConnection': '',
 102             'checkedDomains': 'youtube',
 103             'dnConn': '',
 104             'pstMsg': '0',
 105             'rmShown': '1',
 106             'secTok': '',
 107             'signIn': 'Sign in',
 108             'timeStmp': '',
 109             'service': 'youtube',
 110             'uilel': '3',
 111             'hl': 'en_US',
 112         }
 113
 114         # Convert to UTF-8 *before* urlencode because Python 2.x's urlencode
 115         # chokes on unicode
 116         login_form = dict((k.encode('utf-8'), v.encode('utf-8')) for k, v in login_form_strs.items())
 117         login_data = compat_urllib_parse.urlencode(login_form).encode('ascii')
 118
 119         req = compat_urllib_request.Request(self._LOGIN_URL, login_data)
 120         login_results = self._download_webpage(
 121             req, None,
 122             note='Logging in', errnote='unable to log in', fatal=False)
 123         if login_results is False:
 124             return False
 125
 126         if re.search(r'id="errormsg_0_Passwd"', login_results) is not None:
 127             raise ExtractorError('Please use your account password and a two-factor code instead of an application-specific password.', expected=True)
 128
 129         # Two-Factor
 130         # TODO add SMS and phone call support - these require making a request and then prompting the user
 131
 132         if re.search(r'(?i)<form[^>]* id="challenge"', login_results) is not None:
 133             tfa_code = self._get_tfa_info('2-step verification code')
 134
 135             if not tfa_code:
 136                 self._downloader.report_warning(
 137                     'Two-factor authentication required. Provide it either interactively or with --twofactor <code>'
 138                     '(Note that only TOTP (Google Authenticator App) codes work at this time.)')
 139                 return False
 140
 141             tfa_code = remove_start(tfa_code, 'G-')
 142
 143             tfa_form_strs = self._form_hidden_inputs('challenge', login_results)
 144
 145             tfa_form_strs.update({
 146                 'Pin': tfa_code,
 147                 'TrustDevice': 'on',
 148             })
 149
 150             tfa_form = dict((k.encode('utf-8'), v.encode('utf-8')) for k, v in tfa_form_strs.items())
 151             tfa_data = compat_urllib_parse.urlencode(tfa_form).encode('ascii')
 152
 153             tfa_req = compat_urllib_request.Request(self._TWOFACTOR_URL, tfa_data)
 154             tfa_results = self._download_webpage(
 155                 tfa_req, None,
 156                 note='Submitting TFA code', errnote='unable to submit tfa', fatal=False)
 157
 158             if tfa_results is False:
 159                 return False
 160
 161             if re.search(r'(?i)<form[^>]* id="challenge"', tfa_results) is not None:
 162                 self._downloader.report_warning('Two-factor code expired or invalid. Please try again, or use a one-use backup code instead.')
 163                 return False
 164             if re.search(r'(?i)<form[^>]* id="gaia_loginform"', tfa_results) is not None:
 165                 self._downloader.report_warning('unable to log in - did the page structure change?')
 166                 return False
 167             if re.search(r'smsauth-interstitial-reviewsettings', tfa_results) is not None:
 168                 self._downloader.report_warning('Your Google account has a security notice. Please log in on your web browser, resolve the notice, and try again.')
 169                 return False
 170
 171         if re.search(r'(?i)<form[^>]* id="gaia_loginform"', login_results) is not None:
 172             self._downloader.report_warning('unable to log in: bad username or password')
 173             return False
 174         return True
 175
 176     def _real_initialize(self):
 177         if self._downloader is None:
 178             return
 179         self._set_language()
 180         if not self._login():
 181             return
 182
 183
 184 class YoutubeIE(YoutubeBaseInfoExtractor):
 185     IE_DESC = 'YouTube.com'
 186     _VALID_URL = r"""(?x)^
 187                      (
 188                          (?:https?://|//)                                    # http(s):// or protocol-independent URL
 189                          (?:(?:(?:(?:\w+\.)?[yY][oO][uU][tT][uU][bB][eE](?:-nocookie)?\.com/|
 190                             (?:www\.)?deturl\.com/www\.youtube\.com/|
 191                             (?:www\.)?pwnyoutube\.com/|
 192                             (?:www\.)?yourepeat\.com/|
 193                             tube\.majestyc\.net/|
 194                             youtube\.googleapis\.com/)                        # the various hostnames, with wildcard subdomains
 195                          (?:.*?\#/)?                                          # handle anchor (#/) redirect urls
 196                          (?:                                                  # the various things that can precede the ID:
 197                              (?:(?:v|embed|e)/(?!videoseries))                # v/ or embed/ or e/
 198                              |(?:                                             # or the v= param in all its forms
 199                                  (?:(?:watch|movie)(?:_popup)?(?:\.php)?/?)?  # preceding watch(_popup|.php) or nothing (like /?v=xxxx)
 200                                  (?:\?|\#!?)                                  # the params delimiter ? or # or #!
 201                                  (?:.*?&)??                                   # any other preceding param (like /?s=tuff&v=xxxx)
 202                                  v=
 203                              )
 204                          ))
 205                          |(?:
 206                             youtu\.be|                                        # just youtu.be/xxxx
 207                             vid\.plus                                         # or vid.plus/xxxx
 208                          )/
 209                          |(?:www\.)?cleanvideosearch\.com/media/action/yt/watch\?videoId=
 210                          )
 211                      )?                                                       # all until now is optional -> you can pass the naked ID
 212                      ([0-9A-Za-z_-]{11})                                      # here is it! the YouTube video ID
 213                      (?!.*?&list=)                                            # combined list/video URLs are handled by the playlist IE
 214                      (?(1).+)?                                                # if we found the ID, everything can follow
 215                      $"""
 216     _NEXT_URL_RE = r'[\?&]next_url=([^&]+)'
 217     _formats = {
 218         '5': {'ext': 'flv', 'width': 400, 'height': 240},
 219         '6': {'ext': 'flv', 'width': 450, 'height': 270},
 220         '13': {'ext': '3gp'},
 221         '17': {'ext': '3gp', 'width': 176, 'height': 144},
 222         '18': {'ext': 'mp4', 'width': 640, 'height': 360},
 223         '22': {'ext': 'mp4', 'width': 1280, 'height': 720},
 224         '34': {'ext': 'flv', 'width': 640, 'height': 360},
 225         '35': {'ext': 'flv', 'width': 854, 'height': 480},
 226         '36': {'ext': '3gp', 'width': 320, 'height': 240},
 227         '37': {'ext': 'mp4', 'width': 1920, 'height': 1080},
 228         '38': {'ext': 'mp4', 'width': 4096, 'height': 3072},
 229         '43': {'ext': 'webm', 'width': 640, 'height': 360},
 230         '44': {'ext': 'webm', 'width': 854, 'height': 480},
 231         '45': {'ext': 'webm', 'width': 1280, 'height': 720},
 232         '46': {'ext': 'webm', 'width': 1920, 'height': 1080},
 233         '59': {'ext': 'mp4', 'width': 854, 'height': 480},
 234         '78': {'ext': 'mp4', 'width': 854, 'height': 480},
 235
 236
 237         # 3d videos
 238         '82': {'ext': 'mp4', 'height': 360, 'format_note': '3D', 'preference': -20},
 239         '83': {'ext': 'mp4', 'height': 480, 'format_note': '3D', 'preference': -20},
 240         '84': {'ext': 'mp4', 'height': 720, 'format_note': '3D', 'preference': -20},
 241         '85': {'ext': 'mp4', 'height': 1080, 'format_note': '3D', 'preference': -20},
 242         '100': {'ext': 'webm', 'height': 360, 'format_note': '3D', 'preference': -20},
 243         '101': {'ext': 'webm', 'height': 480, 'format_note': '3D', 'preference': -20},
 244         '102': {'ext': 'webm', 'height': 720, 'format_note': '3D', 'preference': -20},
 245
 246         # Apple HTTP Live Streaming
 247         '92': {'ext': 'mp4', 'height': 240, 'format_note': 'HLS', 'preference': -10},
 248         '93': {'ext': 'mp4', 'height': 360, 'format_note': 'HLS', 'preference': -10},
 249         '94': {'ext': 'mp4', 'height': 480, 'format_note': 'HLS', 'preference': -10},
 250         '95': {'ext': 'mp4', 'height': 720, 'format_note': 'HLS', 'preference': -10},
 251         '96': {'ext': 'mp4', 'height': 1080, 'format_note': 'HLS', 'preference': -10},
 252         '132': {'ext': 'mp4', 'height': 240, 'format_note': 'HLS', 'preference': -10},
 253         '151': {'ext': 'mp4', 'height': 72, 'format_note': 'HLS', 'preference': -10},
 254
 255         # DASH mp4 video
 256         '133': {'ext': 'mp4', 'height': 240, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 257         '134': {'ext': 'mp4', 'height': 360, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 258         '135': {'ext': 'mp4', 'height': 480, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 259         '136': {'ext': 'mp4', 'height': 720, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 260         '137': {'ext': 'mp4', 'height': 1080, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 261         '138': {'ext': 'mp4', 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},  # Height can vary (https://github.com/rg3/youtube-dl/issues/4559)
 262         '160': {'ext': 'mp4', 'height': 144, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 263         '264': {'ext': 'mp4', 'height': 1440, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 264         '298': {'ext': 'mp4', 'height': 720, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40, 'fps': 60, 'vcodec': 'h264'},
 265         '299': {'ext': 'mp4', 'height': 1080, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40, 'fps': 60, 'vcodec': 'h264'},
 266         '266': {'ext': 'mp4', 'height': 2160, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40, 'vcodec': 'h264'},
 267
 268         # Dash mp4 audio
 269         '139': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'vcodec': 'none', 'abr': 48, 'preference': -50, 'container': 'm4a_dash'},
 270         '140': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'vcodec': 'none', 'abr': 128, 'preference': -50, 'container': 'm4a_dash'},
 271         '141': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'vcodec': 'none', 'abr': 256, 'preference': -50, 'container': 'm4a_dash'},
 272
 273         # Dash webm
 274         '167': {'ext': 'webm', 'height': 360, 'width': 640, 'format_note': 'DASH video', 'acodec': 'none', 'container': 'webm', 'vcodec': 'vp8', 'preference': -40},
 275         '168': {'ext': 'webm', 'height': 480, 'width': 854, 'format_note': 'DASH video', 'acodec': 'none', 'container': 'webm', 'vcodec': 'vp8', 'preference': -40},
 276         '169': {'ext': 'webm', 'height': 720, 'width': 1280, 'format_note': 'DASH video', 'acodec': 'none', 'container': 'webm', 'vcodec': 'vp8', 'preference': -40},
 277         '170': {'ext': 'webm', 'height': 1080, 'width': 1920, 'format_note': 'DASH video', 'acodec': 'none', 'container': 'webm', 'vcodec': 'vp8', 'preference': -40},
 278         '218': {'ext': 'webm', 'height': 480, 'width': 854, 'format_note': 'DASH video', 'acodec': 'none', 'container': 'webm', 'vcodec': 'vp8', 'preference': -40},
 279         '219': {'ext': 'webm', 'height': 480, 'width': 854, 'format_note': 'DASH video', 'acodec': 'none', 'container': 'webm', 'vcodec': 'vp8', 'preference': -40},
 280         '278': {'ext': 'webm', 'height': 144, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40, 'container': 'webm', 'vcodec': 'vp9'},
 281         '242': {'ext': 'webm', 'height': 240, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 282         '243': {'ext': 'webm', 'height': 360, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 283         '244': {'ext': 'webm', 'height': 480, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 284         '245': {'ext': 'webm', 'height': 480, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 285         '246': {'ext': 'webm', 'height': 480, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 286         '247': {'ext': 'webm', 'height': 720, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 287         '248': {'ext': 'webm', 'height': 1080, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 288         '271': {'ext': 'webm', 'height': 1440, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 289         '272': {'ext': 'webm', 'height': 2160, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 290         '302': {'ext': 'webm', 'height': 720, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40, 'fps': 60, 'vcodec': 'vp9'},
 291         '303': {'ext': 'webm', 'height': 1080, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40, 'fps': 60, 'vcodec': 'vp9'},
 292         '308': {'ext': 'webm', 'height': 1440, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40, 'fps': 60, 'vcodec': 'vp9'},
 293         '313': {'ext': 'webm', 'height': 2160, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40, 'vcodec': 'vp9'},
 294         '315': {'ext': 'webm', 'height': 2160, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40, 'fps': 60, 'vcodec': 'vp9'},
 295
 296         # Dash webm audio
 297         '171': {'ext': 'webm', 'vcodec': 'none', 'format_note': 'DASH audio', 'abr': 128, 'preference': -50},
 298         '172': {'ext': 'webm', 'vcodec': 'none', 'format_note': 'DASH audio', 'abr': 256, 'preference': -50},
 299
 300         # Dash webm audio with opus inside
 301         '249': {'ext': 'webm', 'vcodec': 'none', 'format_note': 'DASH audio', 'acodec': 'opus', 'abr': 50, 'preference': -50},
 302         '250': {'ext': 'webm', 'vcodec': 'none', 'format_note': 'DASH audio', 'acodec': 'opus', 'abr': 70, 'preference': -50},
 303         '251': {'ext': 'webm', 'vcodec': 'none', 'format_note': 'DASH audio', 'acodec': 'opus', 'abr': 160, 'preference': -50},
 304
 305         # RTMP (unnamed)
 306         '_rtmp': {'protocol': 'rtmp'},
 307     }
 308
 309     IE_NAME = 'youtube'
 310     _TESTS = [
 311         {
 312             'url': 'http://www.youtube.com/watch?v=BaW_jenozKcj&t=1s&end=9',
 313             'info_dict': {
 314                 'id': 'BaW_jenozKc',
 315                 'ext': 'mp4',
 316                 'title': 'youtube-dl test video "\'/\\ä↭𝕐',
 317                 'uploader': 'Philipp Hagemeister',
 318                 'uploader_id': 'phihag',
 319                 'upload_date': '20121002',
 320                 'description': 'test chars:  "\'/\\ä↭𝕐\ntest URL: https://github.com/rg3/youtube-dl/issues/1892\n\nThis is a test video for youtube-dl.\n\nFor more information, contact phihag@phihag.de .',
 321                 'categories': ['Science & Technology'],
 322                 'tags': ['youtube-dl'],
 323                 'like_count': int,
 324                 'dislike_count': int,
 325                 'start_time': 1,
 326                 'end_time': 9,
 327             }
 328         },
 329         {
 330             'url': 'http://www.youtube.com/watch?v=UxxajLWwzqY',
 331             'note': 'Test generic use_cipher_signature video (#897)',
 332             'info_dict': {
 333                 'id': 'UxxajLWwzqY',
 334                 'ext': 'mp4',
 335                 'upload_date': '20120506',
 336                 'title': 'Icona Pop - I Love It (feat. Charli XCX) [OFFICIAL VIDEO]',
 337                 'description': 'md5:782e8651347686cba06e58f71ab51773',
 338                 'tags': ['Icona Pop i love it', 'sweden', 'pop music', 'big beat records', 'big beat', 'charli',
 339                          'xcx', 'charli xcx', 'girls', 'hbo', 'i love it', "i don't care", 'icona', 'pop',
 340                          'iconic ep', 'iconic', 'love', 'it'],
 341                 'uploader': 'Icona Pop',
 342                 'uploader_id': 'IconaPop',
 343             }
 344         },
 345         {
 346             'url': 'https://www.youtube.com/watch?v=07FYdnEawAQ',
 347             'note': 'Test VEVO video with age protection (#956)',
 348             'info_dict': {
 349                 'id': '07FYdnEawAQ',
 350                 'ext': 'mp4',
 351                 'upload_date': '20130703',
 352                 'title': 'Justin Timberlake - Tunnel Vision (Explicit)',
 353                 'description': 'md5:64249768eec3bc4276236606ea996373',
 354                 'uploader': 'justintimberlakeVEVO',
 355                 'uploader_id': 'justintimberlakeVEVO',
 356                 'age_limit': 18,
 357             }
 358         },
 359         {
 360             'url': '//www.YouTube.com/watch?v=yZIXLfi8CZQ',
 361             'note': 'Embed-only video (#1746)',
 362             'info_dict': {
 363                 'id': 'yZIXLfi8CZQ',
 364                 'ext': 'mp4',
 365                 'upload_date': '20120608',
 366                 'title': 'Principal Sexually Assaults A Teacher - Episode 117 - 8th June 2012',
 367                 'description': 'md5:09b78bd971f1e3e289601dfba15ca4f7',
 368                 'uploader': 'SET India',
 369                 'uploader_id': 'setindia'
 370             }
 371         },
 372         {
 373             'url': 'http://www.youtube.com/watch?v=BaW_jenozKcj&v=UxxajLWwzqY',
 374             'note': 'Use the first video ID in the URL',
 375             'info_dict': {
 376                 'id': 'BaW_jenozKc',
 377                 'ext': 'mp4',
 378                 'title': 'youtube-dl test video "\'/\\ä↭𝕐',
 379                 'uploader': 'Philipp Hagemeister',
 380                 'uploader_id': 'phihag',
 381                 'upload_date': '20121002',
 382                 'description': 'test chars:  "\'/\\ä↭𝕐\ntest URL: https://github.com/rg3/youtube-dl/issues/1892\n\nThis is a test video for youtube-dl.\n\nFor more information, contact phihag@phihag.de .',
 383                 'categories': ['Science & Technology'],
 384                 'tags': ['youtube-dl'],
 385                 'like_count': int,
 386                 'dislike_count': int,
 387             },
 388             'params': {
 389                 'skip_download': True,
 390             },
 391         },
 392         {
 393             'url': 'http://www.youtube.com/watch?v=a9LDPn-MO4I',
 394             'note': '256k DASH audio (format 141) via DASH manifest',
 395             'info_dict': {
 396                 'id': 'a9LDPn-MO4I',
 397                 'ext': 'm4a',
 398                 'upload_date': '20121002',
 399                 'uploader_id': '8KVIDEO',
 400                 'description': '',
 401                 'uploader': '8KVIDEO',
 402                 'title': 'UHDTV TEST 8K VIDEO.mp4'
 403             },
 404             'params': {
 405                 'youtube_include_dash_manifest': True,
 406                 'format': '141',
 407             },
 408         },
 409         # DASH manifest with encrypted signature
 410         {
 411             'url': 'https://www.youtube.com/watch?v=IB3lcPjvWLA',
 412             'info_dict': {
 413                 'id': 'IB3lcPjvWLA',
 414                 'ext': 'm4a',
 415                 'title': 'Afrojack, Spree Wilson - The Spark ft. Spree Wilson',
 416                 'description': 'md5:12e7067fa6735a77bdcbb58cb1187d2d',
 417                 'uploader': 'AfrojackVEVO',
 418                 'uploader_id': 'AfrojackVEVO',
 419                 'upload_date': '20131011',
 420             },
 421             'params': {
 422                 'youtube_include_dash_manifest': True,
 423                 'format': '141',
 424             },
 425         },
 426         # JS player signature function name containing $
 427         {
 428             'url': 'https://www.youtube.com/watch?v=nfWlot6h_JM',
 429             'info_dict': {
 430                 'id': 'nfWlot6h_JM',
 431                 'ext': 'm4a',
 432                 'title': 'Taylor Swift - Shake It Off',
 433                 'description': 'md5:95f66187cd7c8b2c13eb78e1223b63c3',
 434                 'uploader': 'TaylorSwiftVEVO',
 435                 'uploader_id': 'TaylorSwiftVEVO',
 436                 'upload_date': '20140818',
 437             },
 438             'params': {
 439                 'youtube_include_dash_manifest': True,
 440                 'format': '141',
 441             },
 442         },
 443         # Controversy video
 444         {
 445             'url': 'https://www.youtube.com/watch?v=T4XJQO3qol8',
 446             'info_dict': {
 447                 'id': 'T4XJQO3qol8',
 448                 'ext': 'mp4',
 449                 'upload_date': '20100909',
 450                 'uploader': 'The Amazing Atheist',
 451                 'uploader_id': 'TheAmazingAtheist',
 452                 'title': 'Burning Everyone\'s Koran',
 453                 'description': 'SUBSCRIBE: http://www.youtube.com/saturninefilms\n\nEven Obama has taken a stand against freedom on this issue: http://www.huffingtonpost.com/2010/09/09/obama-gma-interview-quran_n_710282.html',
 454             }
 455         },
 456         # Normal age-gate video (No vevo, embed allowed)
 457         {
 458             'url': 'http://youtube.com/watch?v=HtVdAasjOgU',
 459             'info_dict': {
 460                 'id': 'HtVdAasjOgU',
 461                 'ext': 'mp4',
 462                 'title': 'The Witcher 3: Wild Hunt - The Sword Of Destiny Trailer',
 463                 'description': 're:(?s).{100,}About the Game\n.*?The Witcher 3: Wild Hunt.{100,}',
 464                 'uploader': 'The Witcher',
 465                 'uploader_id': 'WitcherGame',
 466                 'upload_date': '20140605',
 467                 'age_limit': 18,
 468             },
 469         },
 470         # Age-gate video with encrypted signature
 471         {
 472             'url': 'http://www.youtube.com/watch?v=6kLq3WMV1nU',
 473             'info_dict': {
 474                 'id': '6kLq3WMV1nU',
 475                 'ext': 'mp4',
 476                 'title': 'Dedication To My Ex (Miss That) (Lyric Video)',
 477                 'description': 'md5:33765bb339e1b47e7e72b5490139bb41',
 478                 'uploader': 'LloydVEVO',
 479                 'uploader_id': 'LloydVEVO',
 480                 'upload_date': '20110629',
 481                 'age_limit': 18,
 482             },
 483         },
 484         # video_info is None (https://github.com/rg3/youtube-dl/issues/4421)
 485         {
 486             'url': '__2ABJjxzNo',
 487             'info_dict': {
 488                 'id': '__2ABJjxzNo',
 489                 'ext': 'mp4',
 490                 'upload_date': '20100430',
 491                 'uploader_id': 'deadmau5',
 492                 'description': 'md5:12c56784b8032162bb936a5f76d55360',
 493                 'uploader': 'deadmau5',
 494                 'title': 'Deadmau5 - Some Chords (HD)',
 495             },
 496             'expected_warnings': [
 497                 'DASH manifest missing',
 498             ]
 499         },
 500         # Olympics (https://github.com/rg3/youtube-dl/issues/4431)
 501         {
 502             'url': 'lqQg6PlCWgI',
 503             'info_dict': {
 504                 'id': 'lqQg6PlCWgI',
 505                 'ext': 'mp4',
 506                 'upload_date': '20120724',
 507                 'uploader_id': 'olympic',
 508                 'description': 'HO09  - Women -  GER-AUS - Hockey - 31 July 2012 - London 2012 Olympic Games',
 509                 'uploader': 'Olympics',
 510                 'title': 'Hockey - Women -  GER-AUS - London 2012 Olympic Games',
 511             },
 512             'params': {
 513                 'skip_download': 'requires avconv',
 514             }
 515         },
 516         # Non-square pixels
 517         {
 518             'url': 'https://www.youtube.com/watch?v=_b-2C3KPAM0',
 519             'info_dict': {
 520                 'id': '_b-2C3KPAM0',
 521                 'ext': 'mp4',
 522                 'stretched_ratio': 16 / 9.,
 523                 'upload_date': '20110310',
 524                 'uploader_id': 'AllenMeow',
 525                 'description': 'made by Wacom from Korea | 字幕&加油添醋 by TY\'s Allen | 感謝heylisa00cavey1001同學熱情提供梗及翻譯',
 526                 'uploader': '孫艾倫',
 527                 'title': '[A-made] 變態妍字幕版 太妍 我就是這樣的人',
 528             },
 529         },
 530         # url_encoded_fmt_stream_map is empty string
 531         {
 532             'url': 'qEJwOuvDf7I',
 533             'info_dict': {
 534                 'id': 'qEJwOuvDf7I',
 535                 'ext': 'webm',
 536                 'title': 'Обсуждение судебной практики по выборам 14 сентября 2014 года в Санкт-Петербурге',
 537                 'description': '',
 538                 'upload_date': '20150404',
 539                 'uploader_id': 'spbelect',
 540                 'uploader': 'Наблюдатели Петербурга',
 541             },
 542             'params': {
 543                 'skip_download': 'requires avconv',
 544             }
 545         },
 546         # Extraction from multiple DASH manifests (https://github.com/rg3/youtube-dl/pull/6097)
 547         {
 548             'url': 'https://www.youtube.com/watch?v=FIl7x6_3R5Y',
 549             'info_dict': {
 550                 'id': 'FIl7x6_3R5Y',
 551                 'ext': 'mp4',
 552                 'title': 'md5:7b81415841e02ecd4313668cde88737a',
 553                 'description': 'md5:116377fd2963b81ec4ce64b542173306',
 554                 'upload_date': '20150625',
 555                 'uploader_id': 'dorappi2000',
 556                 'uploader': 'dorappi2000',
 557                 'formats': 'mincount:33',
 558             },
 559         },
 560         # DASH manifest with segment_list
 561         {
 562             'url': 'https://www.youtube.com/embed/CsmdDsKjzN8',
 563             'md5': '8ce563a1d667b599d21064e982ab9e31',
 564             'info_dict': {
 565                 'id': 'CsmdDsKjzN8',
 566                 'ext': 'mp4',
 567                 'upload_date': '20150501',  # According to '<meta itemprop="datePublished"', but in other places it's 20150510
 568                 'uploader': 'Airtek',
 569                 'description': 'Retransmisión en directo de la XVIII media maratón de Zaragoza.',
 570                 'uploader_id': 'UCzTzUmjXxxacNnL8I3m4LnQ',
 571                 'title': 'Retransmisión XVIII Media maratón Zaragoza 2015',
 572             },
 573             'params': {
 574                 'youtube_include_dash_manifest': True,
 575                 'format': '135',  # bestvideo
 576             }
 577         },
 578         {
 579             # Multifeed videos (multiple cameras), URL is for Main Camera
 580             'url': 'https://www.youtube.com/watch?v=jqWvoWXjCVs',
 581             'info_dict': {
 582                 'id': 'jqWvoWXjCVs',
 583                 'title': 'teamPGP: Rocket League Noob Stream',
 584                 'description': 'md5:dc7872fb300e143831327f1bae3af010',
 585             },
 586             'playlist': [{
 587                 'info_dict': {
 588                     'id': 'jqWvoWXjCVs',
 589                     'ext': 'mp4',
 590                     'title': 'teamPGP: Rocket League Noob Stream (Main Camera)',
 591                     'description': 'md5:dc7872fb300e143831327f1bae3af010',
 592                     'upload_date': '20150721',
 593                     'uploader': 'Beer Games Beer',
 594                     'uploader_id': 'beergamesbeer',
 595                 },
 596             }, {
 597                 'info_dict': {
 598                     'id': '6h8e8xoXJzg',
 599                     'ext': 'mp4',
 600                     'title': 'teamPGP: Rocket League Noob Stream (kreestuh)',
 601                     'description': 'md5:dc7872fb300e143831327f1bae3af010',
 602                     'upload_date': '20150721',
 603                     'uploader': 'Beer Games Beer',
 604                     'uploader_id': 'beergamesbeer',
 605                 },
 606             }, {
 607                 'info_dict': {
 608                     'id': 'PUOgX5z9xZw',
 609                     'ext': 'mp4',
 610                     'title': 'teamPGP: Rocket League Noob Stream (grizzle)',
 611                     'description': 'md5:dc7872fb300e143831327f1bae3af010',
 612                     'upload_date': '20150721',
 613                     'uploader': 'Beer Games Beer',
 614                     'uploader_id': 'beergamesbeer',
 615                 },
 616             }, {
 617                 'info_dict': {
 618                     'id': 'teuwxikvS5k',
 619                     'ext': 'mp4',
 620                     'title': 'teamPGP: Rocket League Noob Stream (zim)',
 621                     'description': 'md5:dc7872fb300e143831327f1bae3af010',
 622                     'upload_date': '20150721',
 623                     'uploader': 'Beer Games Beer',
 624                     'uploader_id': 'beergamesbeer',
 625                 },
 626             }],
 627             'params': {
 628                 'skip_download': True,
 629             },
 630         },
 631         {
 632             'url': 'http://vid.plus/FlRa-iH7PGw',
 633             'only_matching': True,
 634         }
 635     ]
 636
 637     def __init__(self, *args, **kwargs):
 638         super(YoutubeIE, self).__init__(*args, **kwargs)
 639         self._player_cache = {}
 640
 641     def report_video_info_webpage_download(self, video_id):
 642         """Report attempt to download video info webpage."""
 643         self.to_screen('%s: Downloading video info webpage' % video_id)
 644
 645     def report_information_extraction(self, video_id):
 646         """Report attempt to extract video information."""
 647         self.to_screen('%s: Extracting video information' % video_id)
 648
 649     def report_unavailable_format(self, video_id, format):
 650         """Report extracted video URL."""
 651         self.to_screen('%s: Format %s not available' % (video_id, format))
 652
 653     def report_rtmp_download(self):
 654         """Indicate the download will use the RTMP protocol."""
 655         self.to_screen('RTMP download detected')
 656
 657     def _signature_cache_id(self, example_sig):
 658         """ Return a string representation of a signature """
 659         return '.'.join(compat_str(len(part)) for part in example_sig.split('.'))
 660
 661     def _extract_signature_function(self, video_id, player_url, example_sig):
 662         id_m = re.match(
 663             r'.*?-(?P<id>[a-zA-Z0-9_-]+)(?:/watch_as3|/html5player)?\.(?P<ext>[a-z]+)$',
 664             player_url)
 665         if not id_m:
 666             raise ExtractorError('Cannot identify player %r' % player_url)
 667         player_type = id_m.group('ext')
 668         player_id = id_m.group('id')
 669
 670         # Read from filesystem cache
 671         func_id = '%s_%s_%s' % (
 672             player_type, player_id, self._signature_cache_id(example_sig))
 673         assert os.path.basename(func_id) == func_id
 674
 675         cache_spec = self._downloader.cache.load('youtube-sigfuncs', func_id)
 676         if cache_spec is not None:
 677             return lambda s: ''.join(s[i] for i in cache_spec)
 678
 679         download_note = (
 680             'Downloading player %s' % player_url
 681             if self._downloader.params.get('verbose') else
 682             'Downloading %s player %s' % (player_type, player_id)
 683         )
 684         if player_type == 'js':
 685             code = self._download_webpage(
 686                 player_url, video_id,
 687                 note=download_note,
 688                 errnote='Download of %s failed' % player_url)
 689             res = self._parse_sig_js(code)
 690         elif player_type == 'swf':
 691             urlh = self._request_webpage(
 692                 player_url, video_id,
 693                 note=download_note,
 694                 errnote='Download of %s failed' % player_url)
 695             code = urlh.read()
 696             res = self._parse_sig_swf(code)
 697         else:
 698             assert False, 'Invalid player type %r' % player_type
 699
 700         test_string = ''.join(map(compat_chr, range(len(example_sig))))
 701         cache_res = res(test_string)
 702         cache_spec = [ord(c) for c in cache_res]
 703
 704         self._downloader.cache.store('youtube-sigfuncs', func_id, cache_spec)
 705         return res
 706
 707     def _print_sig_code(self, func, example_sig):
 708         def gen_sig_code(idxs):
 709             def _genslice(start, end, step):
 710                 starts = '' if start == 0 else str(start)
 711                 ends = (':%d' % (end + step)) if end + step >= 0 else ':'
 712                 steps = '' if step == 1 else (':%d' % step)
 713                 return 's[%s%s%s]' % (starts, ends, steps)
 714
 715             step = None
 716             # Quelch pyflakes warnings - start will be set when step is set
 717             start = '(Never used)'
 718             for i, prev in zip(idxs[1:], idxs[:-1]):
 719                 if step is not None:
 720                     if i - prev == step:
 721                         continue
 722                     yield _genslice(start, prev, step)
 723                     step = None
 724                     continue
 725                 if i - prev in [-1, 1]:
 726                     step = i - prev
 727                     start = prev
 728                     continue
 729                 else:
 730                     yield 's[%d]' % prev
 731             if step is None:
 732                 yield 's[%d]' % i
 733             else:
 734                 yield _genslice(start, i, step)
 735
 736         test_string = ''.join(map(compat_chr, range(len(example_sig))))
 737         cache_res = func(test_string)
 738         cache_spec = [ord(c) for c in cache_res]
 739         expr_code = ' + '.join(gen_sig_code(cache_spec))
 740         signature_id_tuple = '(%s)' % (
 741             ', '.join(compat_str(len(p)) for p in example_sig.split('.')))
 742         code = ('if tuple(len(p) for p in s.split(\'.\')) == %s:\n'
 743                 '    return %s\n') % (signature_id_tuple, expr_code)
 744         self.to_screen('Extracted signature function:\n' + code)
 745
 746     def _parse_sig_js(self, jscode):
 747         funcname = self._search_regex(
 748             r'\.sig\|\|([a-zA-Z0-9$]+)\(', jscode,
 749             'Initial JS player signature function name')
 750
 751         jsi = JSInterpreter(jscode)
 752         initial_function = jsi.extract_function(funcname)
 753         return lambda s: initial_function([s])
 754
 755     def _parse_sig_swf(self, file_contents):
 756         swfi = SWFInterpreter(file_contents)
 757         TARGET_CLASSNAME = 'SignatureDecipher'
 758         searched_class = swfi.extract_class(TARGET_CLASSNAME)
 759         initial_function = swfi.extract_function(searched_class, 'decipher')
 760         return lambda s: initial_function([s])
 761
 762     def _decrypt_signature(self, s, video_id, player_url, age_gate=False):
 763         """Turn the encrypted s field into a working signature"""
 764
 765         if player_url is None:
 766             raise ExtractorError('Cannot decrypt signature without player_url')
 767
 768         if player_url.startswith('//'):
 769             player_url = 'https:' + player_url
 770         try:
 771             player_id = (player_url, self._signature_cache_id(s))
 772             if player_id not in self._player_cache:
 773                 func = self._extract_signature_function(
 774                     video_id, player_url, s
 775                 )
 776                 self._player_cache[player_id] = func
 777             func = self._player_cache[player_id]
 778             if self._downloader.params.get('youtube_print_sig_code'):
 779                 self._print_sig_code(func, s)
 780             return func(s)
 781         except Exception as e:
 782             tb = traceback.format_exc()
 783             raise ExtractorError(
 784                 'Signature extraction failed: ' + tb, cause=e)
 785
 786     def _get_subtitles(self, video_id, webpage):
 787         try:
 788             subs_doc = self._download_xml(
 789                 'https://video.google.com/timedtext?hl=en&type=list&v=%s' % video_id,
 790                 video_id, note=False)
 791         except ExtractorError as err:
 792             self._downloader.report_warning('unable to download video subtitles: %s' % compat_str(err))
 793             return {}
 794
 795         sub_lang_list = {}
 796         for track in subs_doc.findall('track'):
 797             lang = track.attrib['lang_code']
 798             if lang in sub_lang_list:
 799                 continue
 800             sub_formats = []
 801             for ext in ['sbv', 'vtt', 'srt']:
 802                 params = compat_urllib_parse.urlencode({
 803                     'lang': lang,
 804                     'v': video_id,
 805                     'fmt': ext,
 806                     'name': track.attrib['name'].encode('utf-8'),
 807                 })
 808                 sub_formats.append({
 809                     'url': 'https://www.youtube.com/api/timedtext?' + params,
 810                     'ext': ext,
 811                 })
 812             sub_lang_list[lang] = sub_formats
 813         if not sub_lang_list:
 814             self._downloader.report_warning('video doesn\'t have subtitles')
 815             return {}
 816         return sub_lang_list
 817
 818     def _get_automatic_captions(self, video_id, webpage):
 819         """We need the webpage for getting the captions url, pass it as an
 820            argument to speed up the process."""
 821         self.to_screen('%s: Looking for automatic captions' % video_id)
 822         mobj = re.search(r';ytplayer.config = ({.*?});', webpage)
 823         err_msg = 'Couldn\'t find automatic captions for %s' % video_id
 824         if mobj is None:
 825             self._downloader.report_warning(err_msg)
 826             return {}
 827         player_config = json.loads(mobj.group(1))
 828         try:
 829             args = player_config['args']
 830             caption_url = args['ttsurl']
 831             timestamp = args['timestamp']
 832             # We get the available subtitles
 833             list_params = compat_urllib_parse.urlencode({
 834                 'type': 'list',
 835                 'tlangs': 1,
 836                 'asrs': 1,
 837             })
 838             list_url = caption_url + '&' + list_params
 839             caption_list = self._download_xml(list_url, video_id)
 840             original_lang_node = caption_list.find('track')
 841             if original_lang_node is None:
 842                 self._downloader.report_warning('Video doesn\'t have automatic captions')
 843                 return {}
 844             original_lang = original_lang_node.attrib['lang_code']
 845             caption_kind = original_lang_node.attrib.get('kind', '')
 846
 847             sub_lang_list = {}
 848             for lang_node in caption_list.findall('target'):
 849                 sub_lang = lang_node.attrib['lang_code']
 850                 sub_formats = []
 851                 for ext in ['sbv', 'vtt', 'srt']:
 852                     params = compat_urllib_parse.urlencode({
 853                         'lang': original_lang,
 854                         'tlang': sub_lang,
 855                         'fmt': ext,
 856                         'ts': timestamp,
 857                         'kind': caption_kind,
 858                     })
 859                     sub_formats.append({
 860                         'url': caption_url + '&' + params,
 861                         'ext': ext,
 862                     })
 863                 sub_lang_list[sub_lang] = sub_formats
 864             return sub_lang_list
 865         # An extractor error can be raise by the download process if there are
 866         # no automatic captions but there are subtitles
 867         except (KeyError, ExtractorError):
 868             self._downloader.report_warning(err_msg)
 869             return {}
 870
 871     @classmethod
 872     def extract_id(cls, url):
 873         mobj = re.match(cls._VALID_URL, url, re.VERBOSE)
 874         if mobj is None:
 875             raise ExtractorError('Invalid URL: %s' % url)
 876         video_id = mobj.group(2)
 877         return video_id
 878
 879     def _extract_from_m3u8(self, manifest_url, video_id):
 880         url_map = {}
 881
 882         def _get_urls(_manifest):
 883             lines = _manifest.split('\n')
 884             urls = filter(lambda l: l and not l.startswith('#'),
 885                           lines)
 886             return urls
 887         manifest = self._download_webpage(manifest_url, video_id, 'Downloading formats manifest')
 888         formats_urls = _get_urls(manifest)
 889         for format_url in formats_urls:
 890             itag = self._search_regex(r'itag/(\d+?)/', format_url, 'itag')
 891             url_map[itag] = format_url
 892         return url_map
 893
 894     def _extract_annotations(self, video_id):
 895         url = 'https://www.youtube.com/annotations_invideo?features=1&legacy=1&video_id=%s' % video_id
 896         return self._download_webpage(url, video_id, note='Searching for annotations.', errnote='Unable to download video annotations.')
 897
 898     def _parse_dash_manifest(
 899             self, video_id, dash_manifest_url, player_url, age_gate, fatal=True):
 900         def decrypt_sig(mobj):
 901             s = mobj.group(1)
 902             dec_s = self._decrypt_signature(s, video_id, player_url, age_gate)
 903             return '/signature/%s' % dec_s
 904         dash_manifest_url = re.sub(r'/s/([a-fA-F0-9\.]+)', decrypt_sig, dash_manifest_url)
 905         dash_doc = self._download_xml(
 906             dash_manifest_url, video_id,
 907             note='Downloading DASH manifest',
 908             errnote='Could not download DASH manifest',
 909             fatal=fatal)
 910
 911         if dash_doc is False:
 912             return []
 913
 914         formats = []
 915         for a in dash_doc.findall('.//{urn:mpeg:DASH:schema:MPD:2011}AdaptationSet'):
 916             mime_type = a.attrib.get('mimeType')
 917             for r in a.findall('{urn:mpeg:DASH:schema:MPD:2011}Representation'):
 918                 url_el = r.find('{urn:mpeg:DASH:schema:MPD:2011}BaseURL')
 919                 if url_el is None:
 920                     continue
 921                 if mime_type == 'text/vtt':
 922                     # TODO implement WebVTT downloading
 923                     pass
 924                 elif mime_type.startswith('audio/') or mime_type.startswith('video/'):
 925                     segment_list = r.find('{urn:mpeg:DASH:schema:MPD:2011}SegmentList')
 926                     format_id = r.attrib['id']
 927                     video_url = url_el.text
 928                     filesize = int_or_none(url_el.attrib.get('{http://youtube.com/yt/2012/10/10}contentLength'))
 929                     f = {
 930                         'format_id': format_id,
 931                         'url': video_url,
 932                         'width': int_or_none(r.attrib.get('width')),
 933                         'height': int_or_none(r.attrib.get('height')),
 934                         'tbr': int_or_none(r.attrib.get('bandwidth'), 1000),
 935                         'asr': int_or_none(r.attrib.get('audioSamplingRate')),
 936                         'filesize': filesize,
 937                         'fps': int_or_none(r.attrib.get('frameRate')),
 938                     }
 939                     if segment_list is not None:
 940                         f.update({
 941                             'initialization_url': segment_list.find('{urn:mpeg:DASH:schema:MPD:2011}Initialization').attrib['sourceURL'],
 942                             'segment_urls': [segment.attrib.get('media') for segment in segment_list.findall('{urn:mpeg:DASH:schema:MPD:2011}SegmentURL')],
 943                             'protocol': 'http_dash_segments',
 944                         })
 945                     try:
 946                         existing_format = next(
 947                             fo for fo in formats
 948                             if fo['format_id'] == format_id)
 949                     except StopIteration:
 950                         full_info = self._formats.get(format_id, {}).copy()
 951                         full_info.update(f)
 952                         codecs = r.attrib.get('codecs')
 953                         if codecs:
 954                             if full_info.get('acodec') == 'none' and 'vcodec' not in full_info:
 955                                 full_info['vcodec'] = codecs
 956                             elif full_info.get('vcodec') == 'none' and 'acodec' not in full_info:
 957                                 full_info['acodec'] = codecs
 958                         formats.append(full_info)
 959                     else:
 960                         existing_format.update(f)
 961                 else:
 962                     self.report_warning('Unknown MIME type %s in DASH manifest' % mime_type)
 963         return formats
 964
 965     def _real_extract(self, url):
 966         url, smuggled_data = unsmuggle_url(url, {})
 967
 968         proto = (
 969             'http' if self._downloader.params.get('prefer_insecure', False)
 970             else 'https')
 971
 972         start_time = None
 973         end_time = None
 974         parsed_url = compat_urllib_parse_urlparse(url)
 975         for component in [parsed_url.fragment, parsed_url.query]:
 976             query = compat_parse_qs(component)
 977             if start_time is None and 't' in query:
 978                 start_time = parse_duration(query['t'][0])
 979             if start_time is None and 'start' in query:
 980                 start_time = parse_duration(query['start'][0])
 981             if end_time is None and 'end' in query:
 982                 end_time = parse_duration(query['end'][0])
 983
 984         # Extract original video URL from URL with redirection, like age verification, using next_url parameter
 985         mobj = re.search(self._NEXT_URL_RE, url)
 986         if mobj:
 987             url = proto + '://www.youtube.com/' + compat_urllib_parse_unquote(mobj.group(1)).lstrip('/')
 988         video_id = self.extract_id(url)
 989
 990         # Get video webpage
 991         url = proto + '://www.youtube.com/watch?v=%s&gl=US&hl=en&has_verified=1&bpctr=9999999999' % video_id
 992         video_webpage = self._download_webpage(url, video_id)
 993
 994         # Attempt to extract SWF player URL
 995         mobj = re.search(r'swfConfig.*?"(https?:\\/\\/.*?watch.*?-.*?\.swf)"', video_webpage)
 996         if mobj is not None:
 997             player_url = re.sub(r'\\(.)', r'\1', mobj.group(1))
 998         else:
 999             player_url = None
1000
1001         dash_mpds = []
1002
1003         def add_dash_mpd(video_info):
1004             dash_mpd = video_info.get('dashmpd')
1005             if dash_mpd and dash_mpd[0] not in dash_mpds:
1006                 dash_mpds.append(dash_mpd[0])
1007
1008         # Get video info
1009         embed_webpage = None
1010         is_live = None
1011         if re.search(r'player-age-gate-content">', video_webpage) is not None:
1012             age_gate = True
1013             # We simulate the access to the video from www.youtube.com/v/{video_id}
1014             # this can be viewed without login into Youtube
1015             url = proto + '://www.youtube.com/embed/%s' % video_id
1016             embed_webpage = self._download_webpage(url, video_id, 'Downloading embed webpage')
1017             data = compat_urllib_parse.urlencode({
1018                 'video_id': video_id,
1019                 'eurl': 'https://youtube.googleapis.com/v/' + video_id,
1020                 'sts': self._search_regex(
1021                     r'"sts"\s*:\s*(\d+)', embed_webpage, 'sts', default=''),
1022             })
1023             video_info_url = proto + '://www.youtube.com/get_video_info?' + data
1024             video_info_webpage = self._download_webpage(
1025                 video_info_url, video_id,
1026                 note='Refetching age-gated info webpage',
1027                 errnote='unable to download video info webpage')
1028             video_info = compat_parse_qs(video_info_webpage)
1029             add_dash_mpd(video_info)
1030         else:
1031             age_gate = False
1032             video_info = None
1033             # Try looking directly into the video webpage
1034             mobj = re.search(r';ytplayer\.config\s*=\s*({.*?});', video_webpage)
1035             if mobj:
1036                 json_code = uppercase_escape(mobj.group(1))
1037                 ytplayer_config = json.loads(json_code)
1038                 args = ytplayer_config['args']
1039                 if args.get('url_encoded_fmt_stream_map'):
1040                     # Convert to the same format returned by compat_parse_qs
1041                     video_info = dict((k, [v]) for k, v in args.items())
1042                     add_dash_mpd(video_info)
1043                 if args.get('livestream') == '1' or args.get('live_playback') == 1:
1044                     is_live = True
1045             if not video_info or self._downloader.params.get('youtube_include_dash_manifest', True):
1046                 # We also try looking in get_video_info since it may contain different dashmpd
1047                 # URL that points to a DASH manifest with possibly different itag set (some itags
1048                 # are missing from DASH manifest pointed by webpage's dashmpd, some - from DASH
1049                 # manifest pointed by get_video_info's dashmpd).
1050                 # The general idea is to take a union of itags of both DASH manifests (for example
1051                 # video with such 'manifest behavior' see https://github.com/rg3/youtube-dl/issues/6093)
1052                 self.report_video_info_webpage_download(video_id)
1053                 for el_type in ['&el=info', '&el=embedded', '&el=detailpage', '&el=vevo', '']:
1054                     video_info_url = (
1055                         '%s://www.youtube.com/get_video_info?&video_id=%s%s&ps=default&eurl=&gl=US&hl=en'
1056                         % (proto, video_id, el_type))
1057                     video_info_webpage = self._download_webpage(
1058                         video_info_url,
1059                         video_id, note=False,
1060                         errnote='unable to download video info webpage')
1061                     get_video_info = compat_parse_qs(video_info_webpage)
1062                     if get_video_info.get('use_cipher_signature') != ['True']:
1063                         add_dash_mpd(get_video_info)
1064                     if not video_info:
1065                         video_info = get_video_info
1066                     if 'token' in get_video_info:
1067                         break
1068         if 'token' not in video_info:
1069             if 'reason' in video_info:
1070                 if 'The uploader has not made this video available in your country.' in video_info['reason']:
1071                     regions_allowed = self._html_search_meta('regionsAllowed', video_webpage, default=None)
1072                     if regions_allowed:
1073                         raise ExtractorError('YouTube said: This video is available in %s only' % (
1074                             ', '.join(map(ISO3166Utils.short2full, regions_allowed.split(',')))),
1075                             expected=True)
1076                 raise ExtractorError(
1077                     'YouTube said: %s' % video_info['reason'][0],
1078                     expected=True, video_id=video_id)
1079             else:
1080                 raise ExtractorError(
1081                     '"token" parameter not in video info for unknown reason',
1082                     video_id=video_id)
1083
1084         # title
1085         if 'title' in video_info:
1086             video_title = video_info['title'][0]
1087         else:
1088             self._downloader.report_warning('Unable to extract video title')
1089             video_title = '_'
1090
1091         # description
1092         video_description = get_element_by_id("eow-description", video_webpage)
1093         if video_description:
1094             video_description = re.sub(r'''(?x)
1095                 <a\s+
1096                     (?:[a-zA-Z-]+="[^"]+"\s+)*?
1097                     title="([^"]+)"\s+
1098                     (?:[a-zA-Z-]+="[^"]+"\s+)*?
1099                     class="yt-uix-redirect-link"\s*>
1100                 [^<]+
1101                 </a>
1102             ''', r'\1', video_description)
1103             video_description = clean_html(video_description)
1104         else:
1105             fd_mobj = re.search(r'<meta name="description" content="([^"]+)"', video_webpage)
1106             if fd_mobj:
1107                 video_description = unescapeHTML(fd_mobj.group(1))
1108             else:
1109                 video_description = ''
1110
1111         if 'multifeed_metadata_list' in video_info and not smuggled_data.get('force_singlefeed', False):
1112             if not self._downloader.params.get('noplaylist'):
1113                 entries = []
1114                 feed_ids = []
1115                 multifeed_metadata_list = compat_urllib_parse_unquote_plus(video_info['multifeed_metadata_list'][0])
1116                 for feed in multifeed_metadata_list.split(','):
1117                     feed_data = compat_parse_qs(feed)
1118                     entries.append({
1119                         '_type': 'url_transparent',
1120                         'ie_key': 'Youtube',
1121                         'url': smuggle_url(
1122                             '%s://www.youtube.com/watch?v=%s' % (proto, feed_data['id'][0]),
1123                             {'force_singlefeed': True}),
1124                         'title': '%s (%s)' % (video_title, feed_data['title'][0]),
1125                     })
1126                     feed_ids.append(feed_data['id'][0])
1127                 self.to_screen(
1128                     'Downloading multifeed video (%s) - add --no-playlist to just download video %s'
1129                     % (', '.join(feed_ids), video_id))
1130                 return self.playlist_result(entries, video_id, video_title, video_description)
1131             self.to_screen('Downloading just video %s because of --no-playlist' % video_id)
1132
1133         if 'view_count' in video_info:
1134             view_count = int(video_info['view_count'][0])
1135         else:
1136             view_count = None
1137
1138         # Check for "rental" videos
1139         if 'ypc_video_rental_bar_text' in video_info and 'author' not in video_info:
1140             raise ExtractorError('"rental" videos not supported')
1141
1142         # Start extracting information
1143         self.report_information_extraction(video_id)
1144
1145         # uploader
1146         if 'author' not in video_info:
1147             raise ExtractorError('Unable to extract uploader name')
1148         video_uploader = compat_urllib_parse_unquote_plus(video_info['author'][0])
1149
1150         # uploader_id
1151         video_uploader_id = None
1152         mobj = re.search(r'<link itemprop="url" href="http://www.youtube.com/(?:user|channel)/([^"]+)">', video_webpage)
1153         if mobj is not None:
1154             video_uploader_id = mobj.group(1)
1155         else:
1156             self._downloader.report_warning('unable to extract uploader nickname')
1157
1158         # thumbnail image
1159         # We try first to get a high quality image:
1160         m_thumb = re.search(r'<span itemprop="thumbnail".*?href="(.*?)">',
1161                             video_webpage, re.DOTALL)
1162         if m_thumb is not None:
1163             video_thumbnail = m_thumb.group(1)
1164         elif 'thumbnail_url' not in video_info:
1165             self._downloader.report_warning('unable to extract video thumbnail')
1166             video_thumbnail = None
1167         else:   # don't panic if we can't find it
1168             video_thumbnail = compat_urllib_parse_unquote_plus(video_info['thumbnail_url'][0])
1169
1170         # upload date
1171         upload_date = self._html_search_meta(
1172             'datePublished', video_webpage, 'upload date', default=None)
1173         if not upload_date:
1174             upload_date = self._search_regex(
1175                 [r'(?s)id="eow-date.*?>(.*?)</span>',
1176                  r'id="watch-uploader-info".*?>.*?(?:Published|Uploaded|Streamed live|Started) on (.+?)</strong>'],
1177                 video_webpage, 'upload date', default=None)
1178             if upload_date:
1179                 upload_date = ' '.join(re.sub(r'[/,-]', r' ', mobj.group(1)).split())
1180         upload_date = unified_strdate(upload_date)
1181
1182         m_cat_container = self._search_regex(
1183             r'(?s)<h4[^>]*>\s*Category\s*</h4>\s*<ul[^>]*>(.*?)</ul>',
1184             video_webpage, 'categories', default=None)
1185         if m_cat_container:
1186             category = self._html_search_regex(
1187                 r'(?s)<a[^<]+>(.*?)</a>', m_cat_container, 'category',
1188                 default=None)
1189             video_categories = None if category is None else [category]
1190         else:
1191             video_categories = None
1192
1193         video_tags = [
1194             unescapeHTML(m.group('content'))
1195             for m in re.finditer(self._meta_regex('og:video:tag'), video_webpage)]
1196
1197         def _extract_count(count_name):
1198             return str_to_int(self._search_regex(
1199                 r'-%s-button[^>]+><span[^>]+class="yt-uix-button-content"[^>]*>([\d,]+)</span>'
1200                 % re.escape(count_name),
1201                 video_webpage, count_name, default=None))
1202
1203         like_count = _extract_count('like')
1204         dislike_count = _extract_count('dislike')
1205
1206         # subtitles
1207         video_subtitles = self.extract_subtitles(video_id, video_webpage)
1208         automatic_captions = self.extract_automatic_captions(video_id, video_webpage)
1209
1210         if 'length_seconds' not in video_info:
1211             self._downloader.report_warning('unable to extract video duration')
1212             video_duration = None
1213         else:
1214             video_duration = int(compat_urllib_parse_unquote_plus(video_info['length_seconds'][0]))
1215
1216         # annotations
1217         video_annotations = None
1218         if self._downloader.params.get('writeannotations', False):
1219             video_annotations = self._extract_annotations(video_id)
1220
1221         def _map_to_format_list(urlmap):
1222             formats = []
1223             for itag, video_real_url in urlmap.items():
1224                 dct = {
1225                     'format_id': itag,
1226                     'url': video_real_url,
1227                     'player_url': player_url,
1228                 }
1229                 if itag in self._formats:
1230                     dct.update(self._formats[itag])
1231                 formats.append(dct)
1232             return formats
1233
1234         if 'conn' in video_info and video_info['conn'][0].startswith('rtmp'):
1235             self.report_rtmp_download()
1236             formats = [{
1237                 'format_id': '_rtmp',
1238                 'protocol': 'rtmp',
1239                 'url': video_info['conn'][0],
1240                 'player_url': player_url,
1241             }]
1242         elif len(video_info.get('url_encoded_fmt_stream_map', [''])[0]) >= 1 or len(video_info.get('adaptive_fmts', [''])[0]) >= 1:
1243             encoded_url_map = video_info.get('url_encoded_fmt_stream_map', [''])[0] + ',' + video_info.get('adaptive_fmts', [''])[0]
1244             if 'rtmpe%3Dyes' in encoded_url_map:
1245                 raise ExtractorError('rtmpe downloads are not supported, see https://github.com/rg3/youtube-dl/issues/343 for more information.', expected=True)
1246             url_map = {}
1247             for url_data_str in encoded_url_map.split(','):
1248                 url_data = compat_parse_qs(url_data_str)
1249                 if 'itag' not in url_data or 'url' not in url_data:
1250                     continue
1251                 format_id = url_data['itag'][0]
1252                 url = url_data['url'][0]
1253
1254                 if 'sig' in url_data:
1255                     url += '&signature=' + url_data['sig'][0]
1256                 elif 's' in url_data:
1257                     encrypted_sig = url_data['s'][0]
1258                     ASSETS_RE = r'"assets":.+?"js":\s*("[^"]+")'
1259
1260                     jsplayer_url_json = self._search_regex(
1261                         ASSETS_RE,
1262                         embed_webpage if age_gate else video_webpage,
1263                         'JS player URL (1)', default=None)
1264                     if not jsplayer_url_json and not age_gate:
1265                         # We need the embed website after all
1266                         if embed_webpage is None:
1267                             embed_url = proto + '://www.youtube.com/embed/%s' % video_id
1268                             embed_webpage = self._download_webpage(
1269                                 embed_url, video_id, 'Downloading embed webpage')
1270                         jsplayer_url_json = self._search_regex(
1271                             ASSETS_RE, embed_webpage, 'JS player URL')
1272
1273                     player_url = json.loads(jsplayer_url_json)
1274                     if player_url is None:
1275                         player_url_json = self._search_regex(
1276                             r'ytplayer\.config.*?"url"\s*:\s*("[^"]+")',
1277                             video_webpage, 'age gate player URL')
1278                         player_url = json.loads(player_url_json)
1279
1280                     if self._downloader.params.get('verbose'):
1281                         if player_url is None:
1282                             player_version = 'unknown'
1283                             player_desc = 'unknown'
1284                         else:
1285                             if player_url.endswith('swf'):
1286                                 player_version = self._search_regex(
1287                                     r'-(.+?)(?:/watch_as3)?\.swf$', player_url,
1288                                     'flash player', fatal=False)
1289                                 player_desc = 'flash player %s' % player_version
1290                             else:
1291                                 player_version = self._search_regex(
1292                                     r'html5player-([^/]+?)(?:/html5player)?\.js',
1293                                     player_url,
1294                                     'html5 player', fatal=False)
1295                                 player_desc = 'html5 player %s' % player_version
1296
1297                         parts_sizes = self._signature_cache_id(encrypted_sig)
1298                         self.to_screen('{%s} signature length %s, %s' %
1299                                        (format_id, parts_sizes, player_desc))
1300
1301                     signature = self._decrypt_signature(
1302                         encrypted_sig, video_id, player_url, age_gate)
1303                     url += '&signature=' + signature
1304                 if 'ratebypass' not in url:
1305                     url += '&ratebypass=yes'
1306                 url_map[format_id] = url
1307             formats = _map_to_format_list(url_map)
1308         elif video_info.get('hlsvp'):
1309             manifest_url = video_info['hlsvp'][0]
1310             url_map = self._extract_from_m3u8(manifest_url, video_id)
1311             formats = _map_to_format_list(url_map)
1312         else:
1313             raise ExtractorError('no conn, hlsvp or url_encoded_fmt_stream_map information found in video info')
1314
1315         # Look for the DASH manifest
1316         if self._downloader.params.get('youtube_include_dash_manifest', True):
1317             dash_mpd_fatal = True
1318             for dash_manifest_url in dash_mpds:
1319                 dash_formats = {}
1320                 try:
1321                     for df in self._parse_dash_manifest(
1322                             video_id, dash_manifest_url, player_url, age_gate, dash_mpd_fatal):
1323                         # Do not overwrite DASH format found in some previous DASH manifest
1324                         if df['format_id'] not in dash_formats:
1325                             dash_formats[df['format_id']] = df
1326                         # Additional DASH manifests may end up in HTTP Error 403 therefore
1327                         # allow them to fail without bug report message if we already have
1328                         # some DASH manifest succeeded. This is temporary workaround to reduce
1329                         # burst of bug reports until we figure out the reason and whether it
1330                         # can be fixed at all.
1331                         dash_mpd_fatal = False
1332                 except (ExtractorError, KeyError) as e:
1333                     self.report_warning(
1334                         'Skipping DASH manifest: %r' % e, video_id)
1335                 if dash_formats:
1336                     # Remove the formats we found through non-DASH, they
1337                     # contain less info and it can be wrong, because we use
1338                     # fixed values (for example the resolution). See
1339                     # https://github.com/rg3/youtube-dl/issues/5774 for an
1340                     # example.
1341                     formats = [f for f in formats if f['format_id'] not in dash_formats.keys()]
1342                     formats.extend(dash_formats.values())
1343
1344         # Check for malformed aspect ratio
1345         stretched_m = re.search(
1346             r'<meta\s+property="og:video:tag".*?content="yt:stretch=(?P<w>[0-9]+):(?P<h>[0-9]+)">',
1347             video_webpage)
1348         if stretched_m:
1349             ratio = float(stretched_m.group('w')) / float(stretched_m.group('h'))
1350             for f in formats:
1351                 if f.get('vcodec') != 'none':
1352                     f['stretched_ratio'] = ratio
1353
1354         self._sort_formats(formats)
1355
1356         return {
1357             'id': video_id,
1358             'uploader': video_uploader,
1359             'uploader_id': video_uploader_id,
1360             'upload_date': upload_date,
1361             'title': video_title,
1362             'thumbnail': video_thumbnail,
1363             'description': video_description,
1364             'categories': video_categories,
1365             'tags': video_tags,
1366             'subtitles': video_subtitles,
1367             'automatic_captions': automatic_captions,
1368             'duration': video_duration,
1369             'age_limit': 18 if age_gate else 0,
1370             'annotations': video_annotations,
1371             'webpage_url': proto + '://www.youtube.com/watch?v=%s' % video_id,
1372             'view_count': view_count,
1373             'like_count': like_count,
1374             'dislike_count': dislike_count,
1375             'average_rating': float_or_none(video_info.get('avg_rating', [None])[0]),
1376             'formats': formats,
1377             'is_live': is_live,
1378             'start_time': start_time,
1379             'end_time': end_time,
1380         }
1381
1382
1383 class YoutubePlaylistIE(YoutubeBaseInfoExtractor):
1384     IE_DESC = 'YouTube.com playlists'
1385     _VALID_URL = r"""(?x)(?:
1386                         (?:https?://)?
1387                         (?:\w+\.)?
1388                         youtube\.com/
1389                         (?:
1390                            (?:course|view_play_list|my_playlists|artist|playlist|watch|embed/videoseries)
1391                            \? (?:.*?&)*? (?:p|a|list)=
1392                         |  p/
1393                         )
1394                         (
1395                             (?:PL|LL|EC|UU|FL|RD|UL)?[0-9A-Za-z-_]{10,}
1396                             # Top tracks, they can also include dots
1397                             |(?:MC)[\w\.]*
1398                         )
1399                         .*
1400                      |
1401                         ((?:PL|LL|EC|UU|FL|RD|UL)[0-9A-Za-z-_]{10,})
1402                      )"""
1403     _TEMPLATE_URL = 'https://www.youtube.com/playlist?list=%s'
1404     _VIDEO_RE = r'href="\s*/watch\?v=(?P<id>[0-9A-Za-z_-]{11})&amp;[^"]*?index=(?P<index>\d+)'
1405     IE_NAME = 'youtube:playlist'
1406     _TESTS = [{
1407         'url': 'https://www.youtube.com/playlist?list=PLwiyx1dc3P2JR9N8gQaQN_BCvlSlap7re',
1408         'info_dict': {
1409             'title': 'ytdl test PL',
1410             'id': 'PLwiyx1dc3P2JR9N8gQaQN_BCvlSlap7re',
1411         },
1412         'playlist_count': 3,
1413     }, {
1414         'url': 'https://www.youtube.com/playlist?list=PLtPgu7CB4gbZDA7i_euNxn75ISqxwZPYx',
1415         'info_dict': {
1416             'id': 'PLtPgu7CB4gbZDA7i_euNxn75ISqxwZPYx',
1417             'title': 'YDL_Empty_List',
1418         },
1419         'playlist_count': 0,
1420     }, {
1421         'note': 'Playlist with deleted videos (#651). As a bonus, the video #51 is also twice in this list.',
1422         'url': 'https://www.youtube.com/playlist?list=PLwP_SiAcdui0KVebT0mU9Apz359a4ubsC',
1423         'info_dict': {
1424             'title': '29C3: Not my department',
1425             'id': 'PLwP_SiAcdui0KVebT0mU9Apz359a4ubsC',
1426         },
1427         'playlist_count': 95,
1428     }, {
1429         'note': 'issue #673',
1430         'url': 'PLBB231211A4F62143',
1431         'info_dict': {
1432             'title': '[OLD]Team Fortress 2 (Class-based LP)',
1433             'id': 'PLBB231211A4F62143',
1434         },
1435         'playlist_mincount': 26,
1436     }, {
1437         'note': 'Large playlist',
1438         'url': 'https://www.youtube.com/playlist?list=UUBABnxM4Ar9ten8Mdjj1j0Q',
1439         'info_dict': {
1440             'title': 'Uploads from Cauchemar',
1441             'id': 'UUBABnxM4Ar9ten8Mdjj1j0Q',
1442         },
1443         'playlist_mincount': 799,
1444     }, {
1445         'url': 'PLtPgu7CB4gbY9oDN3drwC3cMbJggS7dKl',
1446         'info_dict': {
1447             'title': 'YDL_safe_search',
1448             'id': 'PLtPgu7CB4gbY9oDN3drwC3cMbJggS7dKl',
1449         },
1450         'playlist_count': 2,
1451     }, {
1452         'note': 'embedded',
1453         'url': 'http://www.youtube.com/embed/videoseries?list=PL6IaIsEjSbf96XFRuNccS_RuEXwNdsoEu',
1454         'playlist_count': 4,
1455         'info_dict': {
1456             'title': 'JODA15',
1457             'id': 'PL6IaIsEjSbf96XFRuNccS_RuEXwNdsoEu',
1458         }
1459     }, {
1460         'note': 'Embedded SWF player',
1461         'url': 'http://www.youtube.com/p/YN5VISEtHet5D4NEvfTd0zcgFk84NqFZ?hl=en_US&fs=1&rel=0',
1462         'playlist_count': 4,
1463         'info_dict': {
1464             'title': 'JODA7',
1465             'id': 'YN5VISEtHet5D4NEvfTd0zcgFk84NqFZ',
1466         }
1467     }, {
1468         'note': 'Buggy playlist: the webpage has a "Load more" button but it doesn\'t have more videos',
1469         'url': 'https://www.youtube.com/playlist?list=UUXw-G3eDE9trcvY2sBMM_aA',
1470         'info_dict': {
1471             'title': 'Uploads from Interstellar Movie',
1472             'id': 'UUXw-G3eDE9trcvY2sBMM_aA',
1473         },
1474         'playlist_mincout': 21,
1475     }]
1476
1477     def _real_initialize(self):
1478         self._login()
1479
1480     def _extract_mix(self, playlist_id):
1481         # The mixes are generated from a single video
1482         # the id of the playlist is just 'RD' + video_id
1483         url = 'https://youtube.com/watch?v=%s&list=%s' % (playlist_id[-11:], playlist_id)
1484         webpage = self._download_webpage(
1485             url, playlist_id, 'Downloading Youtube mix')
1486         search_title = lambda class_name: get_element_by_attribute('class', class_name, webpage)
1487         title_span = (
1488             search_title('playlist-title') or
1489             search_title('title long-title') or
1490             search_title('title'))
1491         title = clean_html(title_span)
1492         ids = orderedSet(re.findall(
1493             r'''(?xs)data-video-username=".*?".*?
1494                        href="/watch\?v=([0-9A-Za-z_-]{11})&amp;[^"]*?list=%s''' % re.escape(playlist_id),
1495             webpage))
1496         url_results = self._ids_to_results(ids)
1497
1498         return self.playlist_result(url_results, playlist_id, title)
1499
1500     def _extract_playlist(self, playlist_id):
1501         url = self._TEMPLATE_URL % playlist_id
1502         page = self._download_webpage(url, playlist_id)
1503
1504         for match in re.findall(r'<div class="yt-alert-message">([^<]+)</div>', page):
1505             match = match.strip()
1506             # Check if the playlist exists or is private
1507             if re.match(r'[^<]*(The|This) playlist (does not exist|is private)[^<]*', match):
1508                 raise ExtractorError(
1509                     'The playlist doesn\'t exist or is private, use --username or '
1510                     '--netrc to access it.',
1511                     expected=True)
1512             elif re.match(r'[^<]*Invalid parameters[^<]*', match):
1513                 raise ExtractorError(
1514                     'Invalid parameters. Maybe URL is incorrect.',
1515                     expected=True)
1516             elif re.match(r'[^<]*Choose your language[^<]*', match):
1517                 continue
1518             else:
1519                 self.report_warning('Youtube gives an alert message: ' + match)
1520
1521         # Extract the video ids from the playlist pages
1522         def _entries():
1523             more_widget_html = content_html = page
1524             for page_num in itertools.count(1):
1525                 matches = re.finditer(self._VIDEO_RE, content_html)
1526                 # We remove the duplicates and the link with index 0
1527                 # (it's not the first video of the playlist)
1528                 new_ids = orderedSet(m.group('id') for m in matches if m.group('index') != '0')
1529                 for vid_id in new_ids:
1530                     yield self.url_result(vid_id, 'Youtube', video_id=vid_id)
1531
1532                 mobj = re.search(r'data-uix-load-more-href="/?(?P<more>[^"]+)"', more_widget_html)
1533                 if not mobj:
1534                     break
1535
1536                 more = self._download_json(
1537                     'https://youtube.com/%s' % mobj.group('more'), playlist_id,
1538                     'Downloading page #%s' % page_num,
1539                     transform_source=uppercase_escape)
1540                 content_html = more['content_html']
1541                 if not content_html.strip():
1542                     # Some webpages show a "Load more" button but they don't
1543                     # have more videos
1544                     break
1545                 more_widget_html = more['load_more_widget_html']
1546
1547         playlist_title = self._html_search_regex(
1548             r'(?s)<h1 class="pl-header-title[^"]*">\s*(.*?)\s*</h1>',
1549             page, 'title')
1550
1551         return self.playlist_result(_entries(), playlist_id, playlist_title)
1552
1553     def _real_extract(self, url):
1554         # Extract playlist id
1555         mobj = re.match(self._VALID_URL, url)
1556         if mobj is None:
1557             raise ExtractorError('Invalid URL: %s' % url)
1558         playlist_id = mobj.group(1) or mobj.group(2)
1559
1560         # Check if it's a video-specific URL
1561         query_dict = compat_urlparse.parse_qs(compat_urlparse.urlparse(url).query)
1562         if 'v' in query_dict:
1563             video_id = query_dict['v'][0]
1564             if self._downloader.params.get('noplaylist'):
1565                 self.to_screen('Downloading just video %s because of --no-playlist' % video_id)
1566                 return self.url_result(video_id, 'Youtube', video_id=video_id)
1567             else:
1568                 self.to_screen('Downloading playlist %s - add --no-playlist to just download video %s' % (playlist_id, video_id))
1569
1570         if playlist_id.startswith('RD') or playlist_id.startswith('UL'):
1571             # Mixes require a custom extraction process
1572             return self._extract_mix(playlist_id)
1573
1574         return self._extract_playlist(playlist_id)
1575
1576
1577 class YoutubeChannelIE(InfoExtractor):
1578     IE_DESC = 'YouTube.com channels'
1579     _VALID_URL = r'https?://(?:youtu\.be|(?:\w+\.)?youtube(?:-nocookie)?\.com)/channel/(?P<id>[0-9A-Za-z_-]+)'
1580     _TEMPLATE_URL = 'https://www.youtube.com/channel/%s/videos'
1581     IE_NAME = 'youtube:channel'
1582     _TESTS = [{
1583         'note': 'paginated channel',
1584         'url': 'https://www.youtube.com/channel/UCKfVa3S1e4PHvxWcwyMMg8w',
1585         'playlist_mincount': 91,
1586         'info_dict': {
1587             'id': 'UCKfVa3S1e4PHvxWcwyMMg8w',
1588         }
1589     }]
1590
1591     @staticmethod
1592     def extract_videos_from_page(page):
1593         ids_in_page = []
1594         titles_in_page = []
1595         for mobj in re.finditer(r'(?:title="(?P<title>[^"]+)"[^>]+)?href="/watch\?v=(?P<id>[0-9A-Za-z_-]+)&?', page):
1596             video_id = mobj.group('id')
1597             video_title = unescapeHTML(mobj.group('title'))
1598             try:
1599                 idx = ids_in_page.index(video_id)
1600                 if video_title and not titles_in_page[idx]:
1601                     titles_in_page[idx] = video_title
1602             except ValueError:
1603                 ids_in_page.append(video_id)
1604                 titles_in_page.append(video_title)
1605         return zip(ids_in_page, titles_in_page)
1606
1607     def _real_extract(self, url):
1608         channel_id = self._match_id(url)
1609
1610         url = self._TEMPLATE_URL % channel_id
1611
1612         # Channel by page listing is restricted to 35 pages of 30 items, i.e. 1050 videos total (see #5778)
1613         # Workaround by extracting as a playlist if managed to obtain channel playlist URL
1614         # otherwise fallback on channel by page extraction
1615         channel_page = self._download_webpage(
1616             url + '?view=57', channel_id,
1617             'Downloading channel page', fatal=False)
1618         channel_playlist_id = self._html_search_meta(
1619             'channelId', channel_page, 'channel id', default=None)
1620         if not channel_playlist_id:
1621             channel_playlist_id = self._search_regex(
1622                 r'data-channel-external-id="([^"]+)"',
1623                 channel_page, 'channel id', default=None)
1624         if channel_playlist_id and channel_playlist_id.startswith('UC'):
1625             playlist_id = 'UU' + channel_playlist_id[2:]
1626             return self.url_result(
1627                 compat_urlparse.urljoin(url, '/playlist?list=%s' % playlist_id), 'YoutubePlaylist')
1628
1629         channel_page = self._download_webpage(url, channel_id, 'Downloading page #1')
1630         autogenerated = re.search(r'''(?x)
1631                 class="[^"]*?(?:
1632                     channel-header-autogenerated-label|
1633                     yt-channel-title-autogenerated
1634                 )[^"]*"''', channel_page) is not None
1635
1636         if autogenerated:
1637             # The videos are contained in a single page
1638             # the ajax pages can't be used, they are empty
1639             entries = [
1640                 self.url_result(
1641                     video_id, 'Youtube', video_id=video_id,
1642                     video_title=video_title)
1643                 for video_id, video_title in self.extract_videos_from_page(channel_page)]
1644             return self.playlist_result(entries, channel_id)
1645
1646         def _entries():
1647             more_widget_html = content_html = channel_page
1648             for pagenum in itertools.count(1):
1649
1650                 for video_id, video_title in self.extract_videos_from_page(content_html):
1651                     yield self.url_result(
1652                         video_id, 'Youtube', video_id=video_id,
1653                         video_title=video_title)
1654
1655                 mobj = re.search(
1656                     r'data-uix-load-more-href="/?(?P<more>[^"]+)"',
1657                     more_widget_html)
1658                 if not mobj:
1659                     break
1660
1661                 more = self._download_json(
1662                     'https://youtube.com/%s' % mobj.group('more'), channel_id,
1663                     'Downloading page #%s' % (pagenum + 1),
1664                     transform_source=uppercase_escape)
1665                 content_html = more['content_html']
1666                 more_widget_html = more['load_more_widget_html']
1667
1668         return self.playlist_result(_entries(), channel_id)
1669
1670
1671 class YoutubeUserIE(YoutubeChannelIE):
1672     IE_DESC = 'YouTube.com user videos (URL or "ytuser" keyword)'
1673     _VALID_URL = r'(?:(?:(?:https?://)?(?:\w+\.)?youtube\.com/(?:user/)?(?!(?:attribution_link|watch|results)(?:$|[^a-z_A-Z0-9-])))|ytuser:)(?!feed/)(?P<id>[A-Za-z0-9_-]+)'
1674     _TEMPLATE_URL = 'https://www.youtube.com/user/%s/videos'
1675     IE_NAME = 'youtube:user'
1676
1677     _TESTS = [{
1678         'url': 'https://www.youtube.com/user/TheLinuxFoundation',
1679         'playlist_mincount': 320,
1680         'info_dict': {
1681             'title': 'TheLinuxFoundation',
1682         }
1683     }, {
1684         'url': 'ytuser:phihag',
1685         'only_matching': True,
1686     }]
1687
1688     @classmethod
1689     def suitable(cls, url):
1690         # Don't return True if the url can be extracted with other youtube
1691         # extractor, the regex would is too permissive and it would match.
1692         other_ies = iter(klass for (name, klass) in globals().items() if name.endswith('IE') and klass is not cls)
1693         if any(ie.suitable(url) for ie in other_ies):
1694             return False
1695         else:
1696             return super(YoutubeUserIE, cls).suitable(url)
1697
1698
1699 class YoutubeSearchIE(SearchInfoExtractor, YoutubePlaylistIE):
1700     IE_DESC = 'YouTube.com searches'
1701     # there doesn't appear to be a real limit, for example if you search for
1702     # 'python' you get more than 8.000.000 results
1703     _MAX_RESULTS = float('inf')
1704     IE_NAME = 'youtube:search'
1705     _SEARCH_KEY = 'ytsearch'
1706     _EXTRA_QUERY_ARGS = {}
1707     _TESTS = []
1708
1709     def _get_n_results(self, query, n):
1710         """Get a specified number of results for a query"""
1711
1712         videos = []
1713         limit = n
1714
1715         for pagenum in itertools.count(1):
1716             url_query = {
1717                 'search_query': query.encode('utf-8'),
1718                 'page': pagenum,
1719                 'spf': 'navigate',
1720             }
1721             url_query.update(self._EXTRA_QUERY_ARGS)
1722             result_url = 'https://www.youtube.com/results?' + compat_urllib_parse.urlencode(url_query)
1723             data = self._download_json(
1724                 result_url, video_id='query "%s"' % query,
1725                 note='Downloading page %s' % pagenum,
1726                 errnote='Unable to download API page')
1727             html_content = data[1]['body']['content']
1728
1729             if 'class="search-message' in html_content:
1730                 raise ExtractorError(
1731                     '[youtube] No video results', expected=True)
1732
1733             new_videos = self._ids_to_results(orderedSet(re.findall(
1734                 r'href="/watch\?v=(.{11})', html_content)))
1735             videos += new_videos
1736             if not new_videos or len(videos) > limit:
1737                 break
1738
1739         if len(videos) > n:
1740             videos = videos[:n]
1741         return self.playlist_result(videos, query)
1742
1743
1744 class YoutubeSearchDateIE(YoutubeSearchIE):
1745     IE_NAME = YoutubeSearchIE.IE_NAME + ':date'
1746     _SEARCH_KEY = 'ytsearchdate'
1747     IE_DESC = 'YouTube.com searches, newest videos first'
1748     _EXTRA_QUERY_ARGS = {'search_sort': 'video_date_uploaded'}
1749
1750
1751 class YoutubeSearchURLIE(InfoExtractor):
1752     IE_DESC = 'YouTube.com search URLs'
1753     IE_NAME = 'youtube:search_url'
1754     _VALID_URL = r'https?://(?:www\.)?youtube\.com/results\?(.*?&)?search_query=(?P<query>[^&]+)(?:[&]|$)'
1755     _TESTS = [{
1756         'url': 'https://www.youtube.com/results?baz=bar&search_query=youtube-dl+test+video&filters=video&lclk=video',
1757         'playlist_mincount': 5,
1758         'info_dict': {
1759             'title': 'youtube-dl test video',
1760         }
1761     }]
1762
1763     def _real_extract(self, url):
1764         mobj = re.match(self._VALID_URL, url)
1765         query = compat_urllib_parse_unquote_plus(mobj.group('query'))
1766
1767         webpage = self._download_webpage(url, query)
1768         result_code = self._search_regex(
1769             r'(?s)<ol[^>]+class="item-section"(.*?)</ol>', webpage, 'result HTML')
1770
1771         part_codes = re.findall(
1772             r'(?s)<h3[^>]+class="[^"]*yt-lockup-title[^"]*"[^>]*>(.*?)</h3>', result_code)
1773         entries = []
1774         for part_code in part_codes:
1775             part_title = self._html_search_regex(
1776                 [r'(?s)title="([^"]+)"', r'>([^<]+)</a>'], part_code, 'item title', fatal=False)
1777             part_url_snippet = self._html_search_regex(
1778                 r'(?s)href="([^"]+)"', part_code, 'item URL')
1779             part_url = compat_urlparse.urljoin(
1780                 'https://www.youtube.com/', part_url_snippet)
1781             entries.append({
1782                 '_type': 'url',
1783                 'url': part_url,
1784                 'title': part_title,
1785             })
1786
1787         return {
1788             '_type': 'playlist',
1789             'entries': entries,
1790             'title': query,
1791         }
1792
1793
1794 class YoutubeShowIE(InfoExtractor):
1795     IE_DESC = 'YouTube.com (multi-season) shows'
1796     _VALID_URL = r'https?://www\.youtube\.com/show/(?P<id>[^?#]*)'
1797     IE_NAME = 'youtube:show'
1798     _TESTS = [{
1799         'url': 'http://www.youtube.com/show/airdisasters',
1800         'playlist_mincount': 3,
1801         'info_dict': {
1802             'id': 'airdisasters',
1803             'title': 'Air Disasters',
1804         }
1805     }]
1806
1807     def _real_extract(self, url):
1808         mobj = re.match(self._VALID_URL, url)
1809         playlist_id = mobj.group('id')
1810         webpage = self._download_webpage(
1811             url, playlist_id, 'Downloading show webpage')
1812         # There's one playlist for each season of the show
1813         m_seasons = list(re.finditer(r'href="(/playlist\?list=.*?)"', webpage))
1814         self.to_screen('%s: Found %s seasons' % (playlist_id, len(m_seasons)))
1815         entries = [
1816             self.url_result(
1817                 'https://www.youtube.com' + season.group(1), 'YoutubePlaylist')
1818             for season in m_seasons
1819         ]
1820         title = self._og_search_title(webpage, fatal=False)
1821
1822         return {
1823             '_type': 'playlist',
1824             'id': playlist_id,
1825             'title': title,
1826             'entries': entries,
1827         }
1828
1829
1830 class YoutubeFeedsInfoExtractor(YoutubeBaseInfoExtractor):
1831     """
1832     Base class for feed extractors
1833     Subclasses must define the _FEED_NAME and _PLAYLIST_TITLE properties.
1834     """
1835     _LOGIN_REQUIRED = True
1836
1837     @property
1838     def IE_NAME(self):
1839         return 'youtube:%s' % self._FEED_NAME
1840
1841     def _real_initialize(self):
1842         self._login()
1843
1844     def _real_extract(self, url):
1845         page = self._download_webpage(
1846             'https://www.youtube.com/feed/%s' % self._FEED_NAME, self._PLAYLIST_TITLE)
1847
1848         # The extraction process is the same as for playlists, but the regex
1849         # for the video ids doesn't contain an index
1850         ids = []
1851         more_widget_html = content_html = page
1852         for page_num in itertools.count(1):
1853             matches = re.findall(r'href="\s*/watch\?v=([0-9A-Za-z_-]{11})', content_html)
1854
1855             # 'recommended' feed has infinite 'load more' and each new portion spins
1856             # the same videos in (sometimes) slightly different order, so we'll check
1857             # for unicity and break when portion has no new videos
1858             new_ids = filter(lambda video_id: video_id not in ids, orderedSet(matches))
1859             if not new_ids:
1860                 break
1861
1862             ids.extend(new_ids)
1863
1864             mobj = re.search(r'data-uix-load-more-href="/?(?P<more>[^"]+)"', more_widget_html)
1865             if not mobj:
1866                 break
1867
1868             more = self._download_json(
1869                 'https://youtube.com/%s' % mobj.group('more'), self._PLAYLIST_TITLE,
1870                 'Downloading page #%s' % page_num,
1871                 transform_source=uppercase_escape)
1872             content_html = more['content_html']
1873             more_widget_html = more['load_more_widget_html']
1874
1875         return self.playlist_result(
1876             self._ids_to_results(ids), playlist_title=self._PLAYLIST_TITLE)
1877
1878
1879 class YoutubeWatchLaterIE(YoutubePlaylistIE):
1880     IE_NAME = 'youtube:watchlater'
1881     IE_DESC = 'Youtube watch later list, ":ytwatchlater" for short (requires authentication)'
1882     _VALID_URL = r'https?://www\.youtube\.com/(?:feed/watch_later|playlist\?list=WL)|:ytwatchlater'
1883
1884     _TESTS = []  # override PlaylistIE tests
1885
1886     def _real_extract(self, url):
1887         return self._extract_playlist('WL')
1888
1889
1890 class YoutubeFavouritesIE(YoutubeBaseInfoExtractor):
1891     IE_NAME = 'youtube:favorites'
1892     IE_DESC = 'YouTube.com favourite videos, ":ytfav" for short (requires authentication)'
1893     _VALID_URL = r'https?://www\.youtube\.com/my_favorites|:ytfav(?:ou?rites)?'
1894     _LOGIN_REQUIRED = True
1895
1896     def _real_extract(self, url):
1897         webpage = self._download_webpage('https://www.youtube.com/my_favorites', 'Youtube Favourites videos')
1898         playlist_id = self._search_regex(r'list=(.+?)["&]', webpage, 'favourites playlist id')
1899         return self.url_result(playlist_id, 'YoutubePlaylist')
1900
1901
1902 class YoutubeRecommendedIE(YoutubeFeedsInfoExtractor):
1903     IE_DESC = 'YouTube.com recommended videos, ":ytrec" for short (requires authentication)'
1904     _VALID_URL = r'https?://www\.youtube\.com/feed/recommended|:ytrec(?:ommended)?'
1905     _FEED_NAME = 'recommended'
1906     _PLAYLIST_TITLE = 'Youtube Recommended videos'
1907
1908
1909 class YoutubeSubscriptionsIE(YoutubeFeedsInfoExtractor):
1910     IE_DESC = 'YouTube.com subscriptions feed, "ytsubs" keyword (requires authentication)'
1911     _VALID_URL = r'https?://www\.youtube\.com/feed/subscriptions|:ytsubs(?:criptions)?'
1912     _FEED_NAME = 'subscriptions'
1913     _PLAYLIST_TITLE = 'Youtube Subscriptions'
1914
1915
1916 class YoutubeHistoryIE(YoutubeFeedsInfoExtractor):
1917     IE_DESC = 'Youtube watch history, ":ythistory" for short (requires authentication)'
1918     _VALID_URL = 'https?://www\.youtube\.com/feed/history|:ythistory'
1919     _FEED_NAME = 'history'
1920     _PLAYLIST_TITLE = 'Youtube History'
1921
1922
1923 class YoutubeTruncatedURLIE(InfoExtractor):
1924     IE_NAME = 'youtube:truncated_url'
1925     IE_DESC = False  # Do not list
1926     _VALID_URL = r'''(?x)
1927         (?:https?://)?
1928         (?:\w+\.)?[yY][oO][uU][tT][uU][bB][eE](?:-nocookie)?\.com/
1929         (?:watch\?(?:
1930             feature=[a-z_]+|
1931             annotation_id=annotation_[^&]+|
1932             x-yt-cl=[0-9]+|
1933             hl=[^&]*|
1934         )?
1935         |
1936             attribution_link\?a=[^&]+
1937         )
1938         $
1939     '''
1940
1941     _TESTS = [{
1942         'url': 'http://www.youtube.com/watch?annotation_id=annotation_3951667041',
1943         'only_matching': True,
1944     }, {
1945         'url': 'http://www.youtube.com/watch?',
1946         'only_matching': True,
1947     }, {
1948         'url': 'https://www.youtube.com/watch?x-yt-cl=84503534',
1949         'only_matching': True,
1950     }, {
1951         'url': 'https://www.youtube.com/watch?feature=foo',
1952         'only_matching': True,
1953     }, {
1954         'url': 'https://www.youtube.com/watch?hl=en-GB',
1955         'only_matching': True,
1956     }]
1957
1958     def _real_extract(self, url):
1959         raise ExtractorError(
1960             'Did you forget to quote the URL? Remember that & is a meta '
1961             'character in most shells, so you want to put the URL in quotes, '
1962             'like  youtube-dl '
1963             '"http://www.youtube.com/watch?feature=foo&v=BaW_jenozKc" '
1964             ' or simply  youtube-dl BaW_jenozKc  .',
1965             expected=True)
1966
1967
1968 class YoutubeTruncatedIDIE(InfoExtractor):
1969     IE_NAME = 'youtube:truncated_id'
1970     IE_DESC = False  # Do not list
1971     _VALID_URL = r'https?://(?:www\.)?youtube\.com/watch\?v=(?P<id>[0-9A-Za-z_-]{1,10})$'
1972
1973     _TESTS = [{
1974         'url': 'https://www.youtube.com/watch?v=N_708QY7Ob',
1975         'only_matching': True,
1976     }]
1977
1978     def _real_extract(self, url):
1979         video_id = self._match_id(url)
1980         raise ExtractorError(
1981             'Incomplete YouTube ID %s. URL %s looks truncated.' % (video_id, url),
1982             expected=True)