Raphaël G. Git Repositories - youtubedl/blob - 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_request,
  21     compat_urlparse,
  22     compat_str,
  23 )
  24 from ..utils import (
  25     clean_html,
  26     ExtractorError,
  27     float_or_none,
  28     get_element_by_attribute,
  29     get_element_by_id,
  30     int_or_none,
  31     orderedSet,
  32     unescapeHTML,
  33     unified_strdate,
  34     uppercase_escape,
  35 )
  36
  37
  38 class YoutubeBaseInfoExtractor(InfoExtractor):
  39     """Provide base functions for Youtube extractors"""
  40     _LOGIN_URL = 'https://accounts.google.com/ServiceLogin'
  41     _TWOFACTOR_URL = 'https://accounts.google.com/SecondFactor'
  42     _NETRC_MACHINE = 'youtube'
  43     # If True it will raise an error if no login info is provided
  44     _LOGIN_REQUIRED = False
  45
  46     def _set_language(self):
  47         self._set_cookie(
  48             '.youtube.com', 'PREF', 'f1=50000000&hl=en',
  49             # YouTube sets the expire time to about two months
  50             expire_time=time.time() + 2 * 30 * 24 * 3600)
  51
  52     def _login(self):
  53         """
  54         Attempt to log in to YouTube.
  55         True is returned if successful or skipped.
  56         False is returned if login failed.
  57
  58         If _LOGIN_REQUIRED is set and no authentication was provided, an error is raised.
  59         """
  60         (username, password) = self._get_login_info()
  61         # No authentication to be performed
  62         if username is None:
  63             if self._LOGIN_REQUIRED:
  64                 raise ExtractorError('No login info available, needed for using %s.' % self.IE_NAME, expected=True)
  65             return True
  66
  67         login_page = self._download_webpage(
  68             self._LOGIN_URL, None,
  69             note='Downloading login page',
  70             errnote='unable to fetch login page', fatal=False)
  71         if login_page is False:
  72             return
  73
  74         galx = self._search_regex(r'(?s)<input.+?name="GALX".+?value="(.+?)"',
  75                                   login_page, 'Login GALX parameter')
  76
  77         # Log in
  78         login_form_strs = {
  79             'continue': 'https://www.youtube.com/signin?action_handle_signin=true&feature=sign_in_button&hl=en_US&nomobiletemp=1',
  80             'Email': username,
  81             'GALX': galx,
  82             'Passwd': password,
  83
  84             'PersistentCookie': 'yes',
  85             '_utf8': '霱',
  86             'bgresponse': 'js_disabled',
  87             'checkConnection': '',
  88             'checkedDomains': 'youtube',
  89             'dnConn': '',
  90             'pstMsg': '0',
  91             'rmShown': '1',
  92             'secTok': '',
  93             'signIn': 'Sign in',
  94             'timeStmp': '',
  95             'service': 'youtube',
  96             'uilel': '3',
  97             'hl': 'en_US',
  98         }
  99
 100         # Convert to UTF-8 *before* urlencode because Python 2.x's urlencode
 101         # chokes on unicode
 102         login_form = dict((k.encode('utf-8'), v.encode('utf-8')) for k, v in login_form_strs.items())
 103         login_data = compat_urllib_parse.urlencode(login_form).encode('ascii')
 104
 105         req = compat_urllib_request.Request(self._LOGIN_URL, login_data)
 106         login_results = self._download_webpage(
 107             req, None,
 108             note='Logging in', errnote='unable to log in', fatal=False)
 109         if login_results is False:
 110             return False
 111
 112         if re.search(r'id="errormsg_0_Passwd"', login_results) is not None:
 113             raise ExtractorError('Please use your account password and a two-factor code instead of an application-specific password.', expected=True)
 114
 115         # Two-Factor
 116         # TODO add SMS and phone call support - these require making a request and then prompting the user
 117
 118         if re.search(r'(?i)<form[^>]* id="gaia_secondfactorform"', login_results) is not None:
 119             tfa_code = self._get_tfa_info()
 120
 121             if tfa_code is None:
 122                 self._downloader.report_warning('Two-factor authentication required. Provide it with --twofactor <code>')
 123                 self._downloader.report_warning('(Note that only TOTP (Google Authenticator App) codes work at this time.)')
 124                 return False
 125
 126             # Unlike the first login form, secTok and timeStmp are both required for the TFA form
 127
 128             match = re.search(r'id="secTok"\n\s+value=\'(.+)\'/>', login_results, re.M | re.U)
 129             if match is None:
 130                 self._downloader.report_warning('Failed to get secTok - did the page structure change?')
 131             secTok = match.group(1)
 132             match = re.search(r'id="timeStmp"\n\s+value=\'(.+)\'/>', login_results, re.M | re.U)
 133             if match is None:
 134                 self._downloader.report_warning('Failed to get timeStmp - did the page structure change?')
 135             timeStmp = match.group(1)
 136
 137             tfa_form_strs = {
 138                 'continue': 'https://www.youtube.com/signin?action_handle_signin=true&feature=sign_in_button&hl=en_US&nomobiletemp=1',
 139                 'smsToken': '',
 140                 'smsUserPin': tfa_code,
 141                 'smsVerifyPin': 'Verify',
 142
 143                 'PersistentCookie': 'yes',
 144                 'checkConnection': '',
 145                 'checkedDomains': 'youtube',
 146                 'pstMsg': '1',
 147                 'secTok': secTok,
 148                 'timeStmp': timeStmp,
 149                 'service': 'youtube',
 150                 'hl': 'en_US',
 151             }
 152             tfa_form = dict((k.encode('utf-8'), v.encode('utf-8')) for k, v in tfa_form_strs.items())
 153             tfa_data = compat_urllib_parse.urlencode(tfa_form).encode('ascii')
 154
 155             tfa_req = compat_urllib_request.Request(self._TWOFACTOR_URL, tfa_data)
 156             tfa_results = self._download_webpage(
 157                 tfa_req, None,
 158                 note='Submitting TFA code', errnote='unable to submit tfa', fatal=False)
 159
 160             if tfa_results is False:
 161                 return False
 162
 163             if re.search(r'(?i)<form[^>]* id="gaia_secondfactorform"', tfa_results) is not None:
 164                 self._downloader.report_warning('Two-factor code expired. Please try again, or use a one-use backup code instead.')
 165                 return False
 166             if re.search(r'(?i)<form[^>]* id="gaia_loginform"', tfa_results) is not None:
 167                 self._downloader.report_warning('unable to log in - did the page structure change?')
 168                 return False
 169             if re.search(r'smsauth-interstitial-reviewsettings', tfa_results) is not None:
 170                 self._downloader.report_warning('Your Google account has a security notice. Please log in on your web browser, resolve the notice, and try again.')
 171                 return False
 172
 173         if re.search(r'(?i)<form[^>]* id="gaia_loginform"', login_results) is not None:
 174             self._downloader.report_warning('unable to log in: bad username or password')
 175             return False
 176         return True
 177
 178     def _real_initialize(self):
 179         if self._downloader is None:
 180             return
 181         self._set_language()
 182         if not self._login():
 183             return
 184
 185
 186 class YoutubeIE(YoutubeBaseInfoExtractor):
 187     IE_DESC = 'YouTube.com'
 188     _VALID_URL = r"""(?x)^
 189                      (
 190                          (?:https?://|//)                                    # http(s):// or protocol-independent URL
 191                          (?:(?:(?:(?:\w+\.)?[yY][oO][uU][tT][uU][bB][eE](?:-nocookie)?\.com/|
 192                             (?:www\.)?deturl\.com/www\.youtube\.com/|
 193                             (?:www\.)?pwnyoutube\.com/|
 194                             (?:www\.)?yourepeat\.com/|
 195                             tube\.majestyc\.net/|
 196                             youtube\.googleapis\.com/)                        # the various hostnames, with wildcard subdomains
 197                          (?:.*?\#/)?                                          # handle anchor (#/) redirect urls
 198                          (?:                                                  # the various things that can precede the ID:
 199                              (?:(?:v|embed|e)/(?!videoseries))                # v/ or embed/ or e/
 200                              |(?:                                             # or the v= param in all its forms
 201                                  (?:(?:watch|movie)(?:_popup)?(?:\.php)?/?)?  # preceding watch(_popup|.php) or nothing (like /?v=xxxx)
 202                                  (?:\?|\#!?)                                  # the params delimiter ? or # or #!
 203                                  (?:.*?&)?                                    # any other preceding param (like /?s=tuff&v=xxxx)
 204                                  v=
 205                              )
 206                          ))
 207                          |youtu\.be/                                          # just youtu.be/xxxx
 208                          |(?:www\.)?cleanvideosearch\.com/media/action/yt/watch\?videoId=
 209                          )
 210                      )?                                                       # all until now is optional -> you can pass the naked ID
 211                      ([0-9A-Za-z_-]{11})                                      # here is it! the YouTube video ID
 212                      (?!.*?&list=)                                            # combined list/video URLs are handled by the playlist IE
 213                      (?(1).+)?                                                # if we found the ID, everything can follow
 214                      $"""
 215     _NEXT_URL_RE = r'[\?&]next_url=([^&]+)'
 216     _formats = {
 217         '5': {'ext': 'flv', 'width': 400, 'height': 240},
 218         '6': {'ext': 'flv', 'width': 450, 'height': 270},
 219         '13': {'ext': '3gp'},
 220         '17': {'ext': '3gp', 'width': 176, 'height': 144},
 221         '18': {'ext': 'mp4', 'width': 640, 'height': 360},
 222         '22': {'ext': 'mp4', 'width': 1280, 'height': 720},
 223         '34': {'ext': 'flv', 'width': 640, 'height': 360},
 224         '35': {'ext': 'flv', 'width': 854, 'height': 480},
 225         '36': {'ext': '3gp', 'width': 320, 'height': 240},
 226         '37': {'ext': 'mp4', 'width': 1920, 'height': 1080},
 227         '38': {'ext': 'mp4', 'width': 4096, 'height': 3072},
 228         '43': {'ext': 'webm', 'width': 640, 'height': 360},
 229         '44': {'ext': 'webm', 'width': 854, 'height': 480},
 230         '45': {'ext': 'webm', 'width': 1280, 'height': 720},
 231         '46': {'ext': 'webm', 'width': 1920, 'height': 1080},
 232
 233
 234         # 3d videos
 235         '82': {'ext': 'mp4', 'height': 360, 'format_note': '3D', 'preference': -20},
 236         '83': {'ext': 'mp4', 'height': 480, 'format_note': '3D', 'preference': -20},
 237         '84': {'ext': 'mp4', 'height': 720, 'format_note': '3D', 'preference': -20},
 238         '85': {'ext': 'mp4', 'height': 1080, 'format_note': '3D', 'preference': -20},
 239         '100': {'ext': 'webm', 'height': 360, 'format_note': '3D', 'preference': -20},
 240         '101': {'ext': 'webm', 'height': 480, 'format_note': '3D', 'preference': -20},
 241         '102': {'ext': 'webm', 'height': 720, 'format_note': '3D', 'preference': -20},
 242
 243         # Apple HTTP Live Streaming
 244         '92': {'ext': 'mp4', 'height': 240, 'format_note': 'HLS', 'preference': -10},
 245         '93': {'ext': 'mp4', 'height': 360, 'format_note': 'HLS', 'preference': -10},
 246         '94': {'ext': 'mp4', 'height': 480, 'format_note': 'HLS', 'preference': -10},
 247         '95': {'ext': 'mp4', 'height': 720, 'format_note': 'HLS', 'preference': -10},
 248         '96': {'ext': 'mp4', 'height': 1080, 'format_note': 'HLS', 'preference': -10},
 249         '132': {'ext': 'mp4', 'height': 240, 'format_note': 'HLS', 'preference': -10},
 250         '151': {'ext': 'mp4', 'height': 72, 'format_note': 'HLS', 'preference': -10},
 251
 252         # DASH mp4 video
 253         '133': {'ext': 'mp4', 'height': 240, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 254         '134': {'ext': 'mp4', 'height': 360, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 255         '135': {'ext': 'mp4', 'height': 480, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 256         '136': {'ext': 'mp4', 'height': 720, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 257         '137': {'ext': 'mp4', 'height': 1080, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 258         '138': {'ext': 'mp4', 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},  # Height can vary (https://github.com/rg3/youtube-dl/issues/4559)
 259         '160': {'ext': 'mp4', 'height': 144, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 260         '264': {'ext': 'mp4', 'height': 1440, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 261         '298': {'ext': 'mp4', 'height': 720, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40, 'fps': 60, 'vcodec': 'h264'},
 262         '299': {'ext': 'mp4', 'height': 1080, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40, 'fps': 60, 'vcodec': 'h264'},
 263         '266': {'ext': 'mp4', 'height': 2160, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40, 'vcodec': 'h264'},
 264
 265         # Dash mp4 audio
 266         '139': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'vcodec': 'none', 'abr': 48, 'preference': -50, 'container': 'm4a_dash'},
 267         '140': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'vcodec': 'none', 'abr': 128, 'preference': -50, 'container': 'm4a_dash'},
 268         '141': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'vcodec': 'none', 'abr': 256, 'preference': -50, 'container': 'm4a_dash'},
 269
 270         # Dash webm
 271         '167': {'ext': 'webm', 'height': 360, 'width': 640, 'format_note': 'DASH video', 'acodec': 'none', 'container': 'webm', 'vcodec': 'VP8', 'preference': -40},
 272         '168': {'ext': 'webm', 'height': 480, 'width': 854, 'format_note': 'DASH video', 'acodec': 'none', 'container': 'webm', 'vcodec': 'VP8', 'preference': -40},
 273         '169': {'ext': 'webm', 'height': 720, 'width': 1280, 'format_note': 'DASH video', 'acodec': 'none', 'container': 'webm', 'vcodec': 'VP8', 'preference': -40},
 274         '170': {'ext': 'webm', 'height': 1080, 'width': 1920, 'format_note': 'DASH video', 'acodec': 'none', 'container': 'webm', 'vcodec': 'VP8', 'preference': -40},
 275         '218': {'ext': 'webm', 'height': 480, 'width': 854, 'format_note': 'DASH video', 'acodec': 'none', 'container': 'webm', 'vcodec': 'VP8', 'preference': -40},
 276         '219': {'ext': 'webm', 'height': 480, 'width': 854, 'format_note': 'DASH video', 'acodec': 'none', 'container': 'webm', 'vcodec': 'VP8', 'preference': -40},
 277         '278': {'ext': 'webm', 'height': 144, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40, 'container': 'webm', 'vcodec': 'VP9'},
 278         '242': {'ext': 'webm', 'height': 240, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 279         '243': {'ext': 'webm', 'height': 360, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 280         '244': {'ext': 'webm', 'height': 480, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 281         '245': {'ext': 'webm', 'height': 480, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 282         '246': {'ext': 'webm', 'height': 480, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 283         '247': {'ext': 'webm', 'height': 720, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 284         '248': {'ext': 'webm', 'height': 1080, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 285         '271': {'ext': 'webm', 'height': 1440, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 286         '272': {'ext': 'webm', 'height': 2160, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40},
 287         '302': {'ext': 'webm', 'height': 720, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40, 'fps': 60, 'vcodec': 'VP9'},
 288         '303': {'ext': 'webm', 'height': 1080, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40, 'fps': 60, 'vcodec': 'VP9'},
 289         '308': {'ext': 'webm', 'height': 1440, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40, 'fps': 60, 'vcodec': 'VP9'},
 290         '313': {'ext': 'webm', 'height': 2160, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40, 'vcodec': 'VP9'},
 291         '315': {'ext': 'webm', 'height': 2160, 'format_note': 'DASH video', 'acodec': 'none', 'preference': -40, 'fps': 60, 'vcodec': 'VP9'},
 292
 293         # Dash webm audio
 294         '171': {'ext': 'webm', 'vcodec': 'none', 'format_note': 'DASH audio', 'abr': 128, 'preference': -50},
 295         '172': {'ext': 'webm', 'vcodec': 'none', 'format_note': 'DASH audio', 'abr': 256, 'preference': -50},
 296
 297         # Dash webm audio with opus inside
 298         '249': {'ext': 'webm', 'vcodec': 'none', 'format_note': 'DASH audio', 'acodec': 'opus', 'abr': 50, 'preference': -50},
 299         '250': {'ext': 'webm', 'vcodec': 'none', 'format_note': 'DASH audio', 'acodec': 'opus', 'abr': 70, 'preference': -50},
 300         '251': {'ext': 'webm', 'vcodec': 'none', 'format_note': 'DASH audio', 'acodec': 'opus', 'abr': 160, 'preference': -50},
 301
 302         # RTMP (unnamed)
 303         '_rtmp': {'protocol': 'rtmp'},
 304     }
 305
 306     IE_NAME = 'youtube'
 307     _TESTS = [
 308         {
 309             'url': 'http://www.youtube.com/watch?v=BaW_jenozKc',
 310             'info_dict': {
 311                 'id': 'BaW_jenozKc',
 312                 'ext': 'mp4',
 313                 'title': 'youtube-dl test video "\'/\\ä↭𝕐',
 314                 'uploader': 'Philipp Hagemeister',
 315                 'uploader_id': 'phihag',
 316                 'upload_date': '20121002',
 317                 '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 .',
 318                 'categories': ['Science & Technology'],
 319                 'like_count': int,
 320                 'dislike_count': int,
 321             }
 322         },
 323         {
 324             'url': 'http://www.youtube.com/watch?v=UxxajLWwzqY',
 325             'note': 'Test generic use_cipher_signature video (#897)',
 326             'info_dict': {
 327                 'id': 'UxxajLWwzqY',
 328                 'ext': 'mp4',
 329                 'upload_date': '20120506',
 330                 'title': 'Icona Pop - I Love It (feat. Charli XCX) [OFFICIAL VIDEO]',
 331                 'description': 'md5:fea86fda2d5a5784273df5c7cc994d9f',
 332                 'uploader': 'Icona Pop',
 333                 'uploader_id': 'IconaPop',
 334             }
 335         },
 336         {
 337             'url': 'https://www.youtube.com/watch?v=07FYdnEawAQ',
 338             'note': 'Test VEVO video with age protection (#956)',
 339             'info_dict': {
 340                 'id': '07FYdnEawAQ',
 341                 'ext': 'mp4',
 342                 'upload_date': '20130703',
 343                 'title': 'Justin Timberlake - Tunnel Vision (Explicit)',
 344                 'description': 'md5:64249768eec3bc4276236606ea996373',
 345                 'uploader': 'justintimberlakeVEVO',
 346                 'uploader_id': 'justintimberlakeVEVO',
 347             }
 348         },
 349         {
 350             'url': '//www.YouTube.com/watch?v=yZIXLfi8CZQ',
 351             'note': 'Embed-only video (#1746)',
 352             'info_dict': {
 353                 'id': 'yZIXLfi8CZQ',
 354                 'ext': 'mp4',
 355                 'upload_date': '20120608',
 356                 'title': 'Principal Sexually Assaults A Teacher - Episode 117 - 8th June 2012',
 357                 'description': 'md5:09b78bd971f1e3e289601dfba15ca4f7',
 358                 'uploader': 'SET India',
 359                 'uploader_id': 'setindia'
 360             }
 361         },
 362         {
 363             'url': 'http://www.youtube.com/watch?v=a9LDPn-MO4I',
 364             'note': '256k DASH audio (format 141) via DASH manifest',
 365             'info_dict': {
 366                 'id': 'a9LDPn-MO4I',
 367                 'ext': 'm4a',
 368                 'upload_date': '20121002',
 369                 'uploader_id': '8KVIDEO',
 370                 'description': '',
 371                 'uploader': '8KVIDEO',
 372                 'title': 'UHDTV TEST 8K VIDEO.mp4'
 373             },
 374             'params': {
 375                 'youtube_include_dash_manifest': True,
 376                 'format': '141',
 377             },
 378         },
 379         # DASH manifest with encrypted signature
 380         {
 381             'url': 'https://www.youtube.com/watch?v=IB3lcPjvWLA',
 382             'info_dict': {
 383                 'id': 'IB3lcPjvWLA',
 384                 'ext': 'm4a',
 385                 'title': 'Afrojack, Spree Wilson - The Spark ft. Spree Wilson',
 386                 'description': 'md5:12e7067fa6735a77bdcbb58cb1187d2d',
 387                 'uploader': 'AfrojackVEVO',
 388                 'uploader_id': 'AfrojackVEVO',
 389                 'upload_date': '20131011',
 390             },
 391             'params': {
 392                 'youtube_include_dash_manifest': True,
 393                 'format': '141',
 394             },
 395         },
 396         # JS player signature function name containing $
 397         {
 398             'url': 'https://www.youtube.com/watch?v=nfWlot6h_JM',
 399             'info_dict': {
 400                 'id': 'nfWlot6h_JM',
 401                 'ext': 'm4a',
 402                 'title': 'Taylor Swift - Shake It Off',
 403                 'description': 'md5:2acfda1b285bdd478ccec22f9918199d',
 404                 'uploader': 'TaylorSwiftVEVO',
 405                 'uploader_id': 'TaylorSwiftVEVO',
 406                 'upload_date': '20140818',
 407             },
 408             'params': {
 409                 'youtube_include_dash_manifest': True,
 410                 'format': '141',
 411             },
 412         },
 413         # Controversy video
 414         {
 415             'url': 'https://www.youtube.com/watch?v=T4XJQO3qol8',
 416             'info_dict': {
 417                 'id': 'T4XJQO3qol8',
 418                 'ext': 'mp4',
 419                 'upload_date': '20100909',
 420                 'uploader': 'The Amazing Atheist',
 421                 'uploader_id': 'TheAmazingAtheist',
 422                 'title': 'Burning Everyone\'s Koran',
 423                 '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',
 424             }
 425         },
 426         # Normal age-gate video (No vevo, embed allowed)
 427         {
 428             'url': 'http://youtube.com/watch?v=HtVdAasjOgU',
 429             'info_dict': {
 430                 'id': 'HtVdAasjOgU',
 431                 'ext': 'mp4',
 432                 'title': 'The Witcher 3: Wild Hunt - The Sword Of Destiny Trailer',
 433                 'description': 're:(?s).{100,}About the Game\n.*?The Witcher 3: Wild Hunt.{100,}',
 434                 'uploader': 'The Witcher',
 435                 'uploader_id': 'WitcherGame',
 436                 'upload_date': '20140605',
 437             },
 438         },
 439         # Age-gate video with encrypted signature
 440         {
 441             'url': 'http://www.youtube.com/watch?v=6kLq3WMV1nU',
 442             'info_dict': {
 443                 'id': '6kLq3WMV1nU',
 444                 'ext': 'mp4',
 445                 'title': 'Dedication To My Ex (Miss That) (Lyric Video)',
 446                 'description': 'md5:33765bb339e1b47e7e72b5490139bb41',
 447                 'uploader': 'LloydVEVO',
 448                 'uploader_id': 'LloydVEVO',
 449                 'upload_date': '20110629',
 450             },
 451         },
 452         # video_info is None (https://github.com/rg3/youtube-dl/issues/4421)
 453         {
 454             'url': '__2ABJjxzNo',
 455             'info_dict': {
 456                 'id': '__2ABJjxzNo',
 457                 'ext': 'mp4',
 458                 'upload_date': '20100430',
 459                 'uploader_id': 'deadmau5',
 460                 'description': 'md5:12c56784b8032162bb936a5f76d55360',
 461                 'uploader': 'deadmau5',
 462                 'title': 'Deadmau5 - Some Chords (HD)',
 463             },
 464             'expected_warnings': [
 465                 'DASH manifest missing',
 466             ]
 467         },
 468         # Olympics (https://github.com/rg3/youtube-dl/issues/4431)
 469         {
 470             'url': 'lqQg6PlCWgI',
 471             'info_dict': {
 472                 'id': 'lqQg6PlCWgI',
 473                 'ext': 'mp4',
 474                 'upload_date': '20120731',
 475                 'uploader_id': 'olympic',
 476                 'description': 'HO09  - Women -  GER-AUS - Hockey - 31 July 2012 - London 2012 Olympic Games',
 477                 'uploader': 'Olympics',
 478                 'title': 'Hockey - Women -  GER-AUS - London 2012 Olympic Games',
 479             },
 480             'params': {
 481                 'skip_download': 'requires avconv',
 482             }
 483         },
 484         # Non-square pixels
 485         {
 486             'url': 'https://www.youtube.com/watch?v=_b-2C3KPAM0',
 487             'info_dict': {
 488                 'id': '_b-2C3KPAM0',
 489                 'ext': 'mp4',
 490                 'stretched_ratio': 16 / 9.,
 491                 'upload_date': '20110310',
 492                 'uploader_id': 'AllenMeow',
 493                 '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',
 494                 'uploader': '孫艾倫',
 495                 'title': '[A-made] 變態妍字幕版 太妍 我就是這樣的人',
 496             },
 497         },
 498         # url_encoded_fmt_stream_map is empty string
 499         {
 500             'url': 'qEJwOuvDf7I',
 501             'info_dict': {
 502                 'id': 'qEJwOuvDf7I',
 503                 'ext': 'mp4',
 504                 'title': 'Обсуждение судебной практики по выборам 14 сентября 2014 года в Санкт-Петербурге',
 505                 'description': '',
 506                 'upload_date': '20150404',
 507                 'uploader_id': 'spbelect',
 508                 'uploader': 'Наблюдатели Петербурга',
 509             },
 510             'params': {
 511                 'skip_download': 'requires avconv',
 512             }
 513         },
 514     ]
 515
 516     def __init__(self, *args, **kwargs):
 517         super(YoutubeIE, self).__init__(*args, **kwargs)
 518         self._player_cache = {}
 519
 520     def report_video_info_webpage_download(self, video_id):
 521         """Report attempt to download video info webpage."""
 522         self.to_screen('%s: Downloading video info webpage' % video_id)
 523
 524     def report_information_extraction(self, video_id):
 525         """Report attempt to extract video information."""
 526         self.to_screen('%s: Extracting video information' % video_id)
 527
 528     def report_unavailable_format(self, video_id, format):
 529         """Report extracted video URL."""
 530         self.to_screen('%s: Format %s not available' % (video_id, format))
 531
 532     def report_rtmp_download(self):
 533         """Indicate the download will use the RTMP protocol."""
 534         self.to_screen('RTMP download detected')
 535
 536     def _signature_cache_id(self, example_sig):
 537         """ Return a string representation of a signature """
 538         return '.'.join(compat_str(len(part)) for part in example_sig.split('.'))
 539
 540     def _extract_signature_function(self, video_id, player_url, example_sig):
 541         id_m = re.match(
 542             r'.*?-(?P<id>[a-zA-Z0-9_-]+)(?:/watch_as3|/html5player)?\.(?P<ext>[a-z]+)$',
 543             player_url)
 544         if not id_m:
 545             raise ExtractorError('Cannot identify player %r' % player_url)
 546         player_type = id_m.group('ext')
 547         player_id = id_m.group('id')
 548
 549         # Read from filesystem cache
 550         func_id = '%s_%s_%s' % (
 551             player_type, player_id, self._signature_cache_id(example_sig))
 552         assert os.path.basename(func_id) == func_id
 553
 554         cache_spec = self._downloader.cache.load('youtube-sigfuncs', func_id)
 555         if cache_spec is not None:
 556             return lambda s: ''.join(s[i] for i in cache_spec)
 557
 558         download_note = (
 559             'Downloading player %s' % player_url
 560             if self._downloader.params.get('verbose') else
 561             'Downloading %s player %s' % (player_type, player_id)
 562         )
 563         if player_type == 'js':
 564             code = self._download_webpage(
 565                 player_url, video_id,
 566                 note=download_note,
 567                 errnote='Download of %s failed' % player_url)
 568             res = self._parse_sig_js(code)
 569         elif player_type == 'swf':
 570             urlh = self._request_webpage(
 571                 player_url, video_id,
 572                 note=download_note,
 573                 errnote='Download of %s failed' % player_url)
 574             code = urlh.read()
 575             res = self._parse_sig_swf(code)
 576         else:
 577             assert False, 'Invalid player type %r' % player_type
 578
 579         test_string = ''.join(map(compat_chr, range(len(example_sig))))
 580         cache_res = res(test_string)
 581         cache_spec = [ord(c) for c in cache_res]
 582
 583         self._downloader.cache.store('youtube-sigfuncs', func_id, cache_spec)
 584         return res
 585
 586     def _print_sig_code(self, func, example_sig):
 587         def gen_sig_code(idxs):
 588             def _genslice(start, end, step):
 589                 starts = '' if start == 0 else str(start)
 590                 ends = (':%d' % (end + step)) if end + step >= 0 else ':'
 591                 steps = '' if step == 1 else (':%d' % step)
 592                 return 's[%s%s%s]' % (starts, ends, steps)
 593
 594             step = None
 595             # Quelch pyflakes warnings - start will be set when step is set
 596             start = '(Never used)'
 597             for i, prev in zip(idxs[1:], idxs[:-1]):
 598                 if step is not None:
 599                     if i - prev == step:
 600                         continue
 601                     yield _genslice(start, prev, step)
 602                     step = None
 603                     continue
 604                 if i - prev in [-1, 1]:
 605                     step = i - prev
 606                     start = prev
 607                     continue
 608                 else:
 609                     yield 's[%d]' % prev
 610             if step is None:
 611                 yield 's[%d]' % i
 612             else:
 613                 yield _genslice(start, i, step)
 614
 615         test_string = ''.join(map(compat_chr, range(len(example_sig))))
 616         cache_res = func(test_string)
 617         cache_spec = [ord(c) for c in cache_res]
 618         expr_code = ' + '.join(gen_sig_code(cache_spec))
 619         signature_id_tuple = '(%s)' % (
 620             ', '.join(compat_str(len(p)) for p in example_sig.split('.')))
 621         code = ('if tuple(len(p) for p in s.split(\'.\')) == %s:\n'
 622                 '    return %s\n') % (signature_id_tuple, expr_code)
 623         self.to_screen('Extracted signature function:\n' + code)
 624
 625     def _parse_sig_js(self, jscode):
 626         funcname = self._search_regex(
 627             r'\.sig\|\|([a-zA-Z0-9$]+)\(', jscode,
 628             'Initial JS player signature function name')
 629
 630         jsi = JSInterpreter(jscode)
 631         initial_function = jsi.extract_function(funcname)
 632         return lambda s: initial_function([s])
 633
 634     def _parse_sig_swf(self, file_contents):
 635         swfi = SWFInterpreter(file_contents)
 636         TARGET_CLASSNAME = 'SignatureDecipher'
 637         searched_class = swfi.extract_class(TARGET_CLASSNAME)
 638         initial_function = swfi.extract_function(searched_class, 'decipher')
 639         return lambda s: initial_function([s])
 640
 641     def _decrypt_signature(self, s, video_id, player_url, age_gate=False):
 642         """Turn the encrypted s field into a working signature"""
 643
 644         if player_url is None:
 645             raise ExtractorError('Cannot decrypt signature without player_url')
 646
 647         if player_url.startswith('//'):
 648             player_url = 'https:' + player_url
 649         try:
 650             player_id = (player_url, self._signature_cache_id(s))
 651             if player_id not in self._player_cache:
 652                 func = self._extract_signature_function(
 653                     video_id, player_url, s
 654                 )
 655                 self._player_cache[player_id] = func
 656             func = self._player_cache[player_id]
 657             if self._downloader.params.get('youtube_print_sig_code'):
 658                 self._print_sig_code(func, s)
 659             return func(s)
 660         except Exception as e:
 661             tb = traceback.format_exc()
 662             raise ExtractorError(
 663                 'Signature extraction failed: ' + tb, cause=e)
 664
 665     def _get_subtitles(self, video_id, webpage):
 666         try:
 667             subs_doc = self._download_xml(
 668                 'https://video.google.com/timedtext?hl=en&type=list&v=%s' % video_id,
 669                 video_id, note=False)
 670         except ExtractorError as err:
 671             self._downloader.report_warning('unable to download video subtitles: %s' % compat_str(err))
 672             return {}
 673
 674         sub_lang_list = {}
 675         for track in subs_doc.findall('track'):
 676             lang = track.attrib['lang_code']
 677             if lang in sub_lang_list:
 678                 continue
 679             sub_formats = []
 680             for ext in ['sbv', 'vtt', 'srt']:
 681                 params = compat_urllib_parse.urlencode({
 682                     'lang': lang,
 683                     'v': video_id,
 684                     'fmt': ext,
 685                     'name': track.attrib['name'].encode('utf-8'),
 686                 })
 687                 sub_formats.append({
 688                     'url': 'https://www.youtube.com/api/timedtext?' + params,
 689                     'ext': ext,
 690                 })
 691             sub_lang_list[lang] = sub_formats
 692         if not sub_lang_list:
 693             self._downloader.report_warning('video doesn\'t have subtitles')
 694             return {}
 695         return sub_lang_list
 696
 697     def _get_automatic_captions(self, video_id, webpage):
 698         """We need the webpage for getting the captions url, pass it as an
 699            argument to speed up the process."""
 700         self.to_screen('%s: Looking for automatic captions' % video_id)
 701         mobj = re.search(r';ytplayer.config = ({.*?});', webpage)
 702         err_msg = 'Couldn\'t find automatic captions for %s' % video_id
 703         if mobj is None:
 704             self._downloader.report_warning(err_msg)
 705             return {}
 706         player_config = json.loads(mobj.group(1))
 707         try:
 708             args = player_config['args']
 709             caption_url = args['ttsurl']
 710             timestamp = args['timestamp']
 711             # We get the available subtitles
 712             list_params = compat_urllib_parse.urlencode({
 713                 'type': 'list',
 714                 'tlangs': 1,
 715                 'asrs': 1,
 716             })
 717             list_url = caption_url + '&' + list_params
 718             caption_list = self._download_xml(list_url, video_id)
 719             original_lang_node = caption_list.find('track')
 720             if original_lang_node is None:
 721                 self._downloader.report_warning('Video doesn\'t have automatic captions')
 722                 return {}
 723             original_lang = original_lang_node.attrib['lang_code']
 724             caption_kind = original_lang_node.attrib.get('kind', '')
 725
 726             sub_lang_list = {}
 727             for lang_node in caption_list.findall('target'):
 728                 sub_lang = lang_node.attrib['lang_code']
 729                 sub_formats = []
 730                 for ext in ['sbv', 'vtt', 'srt']:
 731                     params = compat_urllib_parse.urlencode({
 732                         'lang': original_lang,
 733                         'tlang': sub_lang,
 734                         'fmt': ext,
 735                         'ts': timestamp,
 736                         'kind': caption_kind,
 737                     })
 738                     sub_formats.append({
 739                         'url': caption_url + '&' + params,
 740                         'ext': ext,
 741                     })
 742                 sub_lang_list[sub_lang] = sub_formats
 743             return sub_lang_list
 744         # An extractor error can be raise by the download process if there are
 745         # no automatic captions but there are subtitles
 746         except (KeyError, ExtractorError):
 747             self._downloader.report_warning(err_msg)
 748             return {}
 749
 750     @classmethod
 751     def extract_id(cls, url):
 752         mobj = re.match(cls._VALID_URL, url, re.VERBOSE)
 753         if mobj is None:
 754             raise ExtractorError('Invalid URL: %s' % url)
 755         video_id = mobj.group(2)
 756         return video_id
 757
 758     def _extract_from_m3u8(self, manifest_url, video_id):
 759         url_map = {}
 760
 761         def _get_urls(_manifest):
 762             lines = _manifest.split('\n')
 763             urls = filter(lambda l: l and not l.startswith('#'),
 764                           lines)
 765             return urls
 766         manifest = self._download_webpage(manifest_url, video_id, 'Downloading formats manifest')
 767         formats_urls = _get_urls(manifest)
 768         for format_url in formats_urls:
 769             itag = self._search_regex(r'itag/(\d+?)/', format_url, 'itag')
 770             url_map[itag] = format_url
 771         return url_map
 772
 773     def _extract_annotations(self, video_id):
 774         url = 'https://www.youtube.com/annotations_invideo?features=1&legacy=1&video_id=%s' % video_id
 775         return self._download_webpage(url, video_id, note='Searching for annotations.', errnote='Unable to download video annotations.')
 776
 777     def _parse_dash_manifest(
 778             self, video_id, dash_manifest_url, player_url, age_gate):
 779         def decrypt_sig(mobj):
 780             s = mobj.group(1)
 781             dec_s = self._decrypt_signature(s, video_id, player_url, age_gate)
 782             return '/signature/%s' % dec_s
 783         dash_manifest_url = re.sub(r'/s/([\w\.]+)', decrypt_sig, dash_manifest_url)
 784         dash_doc = self._download_xml(
 785             dash_manifest_url, video_id,
 786             note='Downloading DASH manifest',
 787             errnote='Could not download DASH manifest')
 788
 789         formats = []
 790         for a in dash_doc.findall('.//{urn:mpeg:DASH:schema:MPD:2011}AdaptationSet'):
 791             mime_type = a.attrib.get('mimeType')
 792             for r in a.findall('{urn:mpeg:DASH:schema:MPD:2011}Representation'):
 793                 url_el = r.find('{urn:mpeg:DASH:schema:MPD:2011}BaseURL')
 794                 if url_el is None:
 795                     continue
 796                 if mime_type == 'text/vtt':
 797                     # TODO implement WebVTT downloading
 798                     pass
 799                 elif mime_type.startswith('audio/') or mime_type.startswith('video/'):
 800                     format_id = r.attrib['id']
 801                     video_url = url_el.text
 802                     filesize = int_or_none(url_el.attrib.get('{http://youtube.com/yt/2012/10/10}contentLength'))
 803                     f = {
 804                         'format_id': format_id,
 805                         'url': video_url,
 806                         'width': int_or_none(r.attrib.get('width')),
 807                         'height': int_or_none(r.attrib.get('height')),
 808                         'tbr': int_or_none(r.attrib.get('bandwidth'), 1000),
 809                         'asr': int_or_none(r.attrib.get('audioSamplingRate')),
 810                         'filesize': filesize,
 811                         'fps': int_or_none(r.attrib.get('frameRate')),
 812                     }
 813                     try:
 814                         existing_format = next(
 815                             fo for fo in formats
 816                             if fo['format_id'] == format_id)
 817                     except StopIteration:
 818                         full_info = self._formats.get(format_id, {}).copy()
 819                         full_info.update(f)
 820                         formats.append(full_info)
 821                     else:
 822                         existing_format.update(f)
 823                 else:
 824                     self.report_warning('Unknown MIME type %s in DASH manifest' % mime_type)
 825         return formats
 826
 827     def _real_extract(self, url):
 828         proto = (
 829             'http' if self._downloader.params.get('prefer_insecure', False)
 830             else 'https')
 831
 832         # Extract original video URL from URL with redirection, like age verification, using next_url parameter
 833         mobj = re.search(self._NEXT_URL_RE, url)
 834         if mobj:
 835             url = proto + '://www.youtube.com/' + compat_urllib_parse.unquote(mobj.group(1)).lstrip('/')
 836         video_id = self.extract_id(url)
 837
 838         # Get video webpage
 839         url = proto + '://www.youtube.com/watch?v=%s&gl=US&hl=en&has_verified=1&bpctr=9999999999' % video_id
 840         video_webpage = self._download_webpage(url, video_id)
 841
 842         # Attempt to extract SWF player URL
 843         mobj = re.search(r'swfConfig.*?"(https?:\\/\\/.*?watch.*?-.*?\.swf)"', video_webpage)
 844         if mobj is not None:
 845             player_url = re.sub(r'\\(.)', r'\1', mobj.group(1))
 846         else:
 847             player_url = None
 848
 849         # Get video info
 850         embed_webpage = None
 851         if re.search(r'player-age-gate-content">', video_webpage) is not None:
 852             age_gate = True
 853             # We simulate the access to the video from www.youtube.com/v/{video_id}
 854             # this can be viewed without login into Youtube
 855             url = proto + '://www.youtube.com/embed/%s' % video_id
 856             embed_webpage = self._download_webpage(url, video_id, 'Downloading embed webpage')
 857             data = compat_urllib_parse.urlencode({
 858                 'video_id': video_id,
 859                 'eurl': 'https://youtube.googleapis.com/v/' + video_id,
 860                 'sts': self._search_regex(
 861                     r'"sts"\s*:\s*(\d+)', embed_webpage, 'sts', default=''),
 862             })
 863             video_info_url = proto + '://www.youtube.com/get_video_info?' + data
 864             video_info_webpage = self._download_webpage(
 865                 video_info_url, video_id,
 866                 note='Refetching age-gated info webpage',
 867                 errnote='unable to download video info webpage')
 868             video_info = compat_parse_qs(video_info_webpage)
 869         else:
 870             age_gate = False
 871             try:
 872                 # Try looking directly into the video webpage
 873                 mobj = re.search(r';ytplayer\.config\s*=\s*({.*?});', video_webpage)
 874                 if not mobj:
 875                     raise ValueError('Could not find ytplayer.config')  # caught below
 876                 json_code = uppercase_escape(mobj.group(1))
 877                 ytplayer_config = json.loads(json_code)
 878                 args = ytplayer_config['args']
 879                 # Convert to the same format returned by compat_parse_qs
 880                 video_info = dict((k, [v]) for k, v in args.items())
 881                 if not args.get('url_encoded_fmt_stream_map'):
 882                     raise ValueError('No stream_map present')  # caught below
 883             except ValueError:
 884                 # We fallback to the get_video_info pages (used by the embed page)
 885                 self.report_video_info_webpage_download(video_id)
 886                 for el_type in ['&el=embedded', '&el=detailpage', '&el=vevo', '']:
 887                     video_info_url = (
 888                         '%s://www.youtube.com/get_video_info?&video_id=%s%s&ps=default&eurl=&gl=US&hl=en'
 889                         % (proto, video_id, el_type))
 890                     video_info_webpage = self._download_webpage(
 891                         video_info_url,
 892                         video_id, note=False,
 893                         errnote='unable to download video info webpage')
 894                     video_info = compat_parse_qs(video_info_webpage)
 895                     if 'token' in video_info:
 896                         break
 897         if 'token' not in video_info:
 898             if 'reason' in video_info:
 899                 raise ExtractorError(
 900                     'YouTube said: %s' % video_info['reason'][0],
 901                     expected=True, video_id=video_id)
 902             else:
 903                 raise ExtractorError(
 904                     '"token" parameter not in video info for unknown reason',
 905                     video_id=video_id)
 906
 907         if 'view_count' in video_info:
 908             view_count = int(video_info['view_count'][0])
 909         else:
 910             view_count = None
 911
 912         # Check for "rental" videos
 913         if 'ypc_video_rental_bar_text' in video_info and 'author' not in video_info:
 914             raise ExtractorError('"rental" videos not supported')
 915
 916         # Start extracting information
 917         self.report_information_extraction(video_id)
 918
 919         # uploader
 920         if 'author' not in video_info:
 921             raise ExtractorError('Unable to extract uploader name')
 922         video_uploader = compat_urllib_parse.unquote_plus(video_info['author'][0])
 923
 924         # uploader_id
 925         video_uploader_id = None
 926         mobj = re.search(r'<link itemprop="url" href="http://www.youtube.com/(?:user|channel)/([^"]+)">', video_webpage)
 927         if mobj is not None:
 928             video_uploader_id = mobj.group(1)
 929         else:
 930             self._downloader.report_warning('unable to extract uploader nickname')
 931
 932         # title
 933         if 'title' in video_info:
 934             video_title = video_info['title'][0]
 935         else:
 936             self._downloader.report_warning('Unable to extract video title')
 937             video_title = '_'
 938
 939         # thumbnail image
 940         # We try first to get a high quality image:
 941         m_thumb = re.search(r'<span itemprop="thumbnail".*?href="(.*?)">',
 942                             video_webpage, re.DOTALL)
 943         if m_thumb is not None:
 944             video_thumbnail = m_thumb.group(1)
 945         elif 'thumbnail_url' not in video_info:
 946             self._downloader.report_warning('unable to extract video thumbnail')
 947             video_thumbnail = None
 948         else:   # don't panic if we can't find it
 949             video_thumbnail = compat_urllib_parse.unquote_plus(video_info['thumbnail_url'][0])
 950
 951         # upload date
 952         upload_date = None
 953         mobj = re.search(r'(?s)id="eow-date.*?>(.*?)</span>', video_webpage)
 954         if mobj is None:
 955             mobj = re.search(
 956                 r'(?s)id="watch-uploader-info".*?>.*?(?:Published|Uploaded|Streamed live) on (.*?)</strong>',
 957                 video_webpage)
 958         if mobj is not None:
 959             upload_date = ' '.join(re.sub(r'[/,-]', r' ', mobj.group(1)).split())
 960             upload_date = unified_strdate(upload_date)
 961
 962         m_cat_container = self._search_regex(
 963             r'(?s)<h4[^>]*>\s*Category\s*</h4>\s*<ul[^>]*>(.*?)</ul>',
 964             video_webpage, 'categories', default=None)
 965         if m_cat_container:
 966             category = self._html_search_regex(
 967                 r'(?s)<a[^<]+>(.*?)</a>', m_cat_container, 'category',
 968                 default=None)
 969             video_categories = None if category is None else [category]
 970         else:
 971             video_categories = None
 972
 973         # description
 974         video_description = get_element_by_id("eow-description", video_webpage)
 975         if video_description:
 976             video_description = re.sub(r'''(?x)
 977                 <a\s+
 978                     (?:[a-zA-Z-]+="[^"]+"\s+)*?
 979                     title="([^"]+)"\s+
 980                     (?:[a-zA-Z-]+="[^"]+"\s+)*?
 981                     class="yt-uix-redirect-link"\s*>
 982                 [^<]+
 983                 </a>
 984             ''', r'\1', video_description)
 985             video_description = clean_html(video_description)
 986         else:
 987             fd_mobj = re.search(r'<meta name="description" content="([^"]+)"', video_webpage)
 988             if fd_mobj:
 989                 video_description = unescapeHTML(fd_mobj.group(1))
 990             else:
 991                 video_description = ''
 992
 993         def _extract_count(count_name):
 994             count = self._search_regex(
 995                 r'id="watch-%s"[^>]*>.*?([\d,]+)\s*</span>' % re.escape(count_name),
 996                 video_webpage, count_name, default=None)
 997             if count is not None:
 998                 return int(count.replace(',', ''))
 999             return None
1000         like_count = _extract_count('like')
1001         dislike_count = _extract_count('dislike')
1002
1003         # subtitles
1004         video_subtitles = self.extract_subtitles(video_id, video_webpage)
1005         automatic_captions = self.extract_automatic_captions(video_id, video_webpage)
1006
1007         if 'length_seconds' not in video_info:
1008             self._downloader.report_warning('unable to extract video duration')
1009             video_duration = None
1010         else:
1011             video_duration = int(compat_urllib_parse.unquote_plus(video_info['length_seconds'][0]))
1012
1013         # annotations
1014         video_annotations = None
1015         if self._downloader.params.get('writeannotations', False):
1016             video_annotations = self._extract_annotations(video_id)
1017
1018         def _map_to_format_list(urlmap):
1019             formats = []
1020             for itag, video_real_url in urlmap.items():
1021                 dct = {
1022                     'format_id': itag,
1023                     'url': video_real_url,
1024                     'player_url': player_url,
1025                 }
1026                 if itag in self._formats:
1027                     dct.update(self._formats[itag])
1028                 formats.append(dct)
1029             return formats
1030
1031         if 'conn' in video_info and video_info['conn'][0].startswith('rtmp'):
1032             self.report_rtmp_download()
1033             formats = [{
1034                 'format_id': '_rtmp',
1035                 'protocol': 'rtmp',
1036                 'url': video_info['conn'][0],
1037                 'player_url': player_url,
1038             }]
1039         elif len(video_info.get('url_encoded_fmt_stream_map', [''])[0]) >= 1 or len(video_info.get('adaptive_fmts', [''])[0]) >= 1:
1040             encoded_url_map = video_info.get('url_encoded_fmt_stream_map', [''])[0] + ',' + video_info.get('adaptive_fmts', [''])[0]
1041             if 'rtmpe%3Dyes' in encoded_url_map:
1042                 raise ExtractorError('rtmpe downloads are not supported, see https://github.com/rg3/youtube-dl/issues/343 for more information.', expected=True)
1043             url_map = {}
1044             for url_data_str in encoded_url_map.split(','):
1045                 url_data = compat_parse_qs(url_data_str)
1046                 if 'itag' not in url_data or 'url' not in url_data:
1047                     continue
1048                 format_id = url_data['itag'][0]
1049                 url = url_data['url'][0]
1050
1051                 if 'sig' in url_data:
1052                     url += '&signature=' + url_data['sig'][0]
1053                 elif 's' in url_data:
1054                     encrypted_sig = url_data['s'][0]
1055                     ASSETS_RE = r'"assets":.+?"js":\s*("[^"]+")'
1056
1057                     jsplayer_url_json = self._search_regex(
1058                         ASSETS_RE,
1059                         embed_webpage if age_gate else video_webpage,
1060                         'JS player URL (1)', default=None)
1061                     if not jsplayer_url_json and not age_gate:
1062                         # We need the embed website after all
1063                         if embed_webpage is None:
1064                             embed_url = proto + '://www.youtube.com/embed/%s' % video_id
1065                             embed_webpage = self._download_webpage(
1066                                 embed_url, video_id, 'Downloading embed webpage')
1067                         jsplayer_url_json = self._search_regex(
1068                             ASSETS_RE, embed_webpage, 'JS player URL')
1069
1070                     player_url = json.loads(jsplayer_url_json)
1071                     if player_url is None:
1072                         player_url_json = self._search_regex(
1073                             r'ytplayer\.config.*?"url"\s*:\s*("[^"]+")',
1074                             video_webpage, 'age gate player URL')
1075                         player_url = json.loads(player_url_json)
1076
1077                     if self._downloader.params.get('verbose'):
1078                         if player_url is None:
1079                             player_version = 'unknown'
1080                             player_desc = 'unknown'
1081                         else:
1082                             if player_url.endswith('swf'):
1083                                 player_version = self._search_regex(
1084                                     r'-(.+?)(?:/watch_as3)?\.swf$', player_url,
1085                                     'flash player', fatal=False)
1086                                 player_desc = 'flash player %s' % player_version
1087                             else:
1088                                 player_version = self._search_regex(
1089                                     r'html5player-([^/]+?)(?:/html5player)?\.js',
1090                                     player_url,
1091                                     'html5 player', fatal=False)
1092                                 player_desc = 'html5 player %s' % player_version
1093
1094                         parts_sizes = self._signature_cache_id(encrypted_sig)
1095                         self.to_screen('{%s} signature length %s, %s' %
1096                                        (format_id, parts_sizes, player_desc))
1097
1098                     signature = self._decrypt_signature(
1099                         encrypted_sig, video_id, player_url, age_gate)
1100                     url += '&signature=' + signature
1101                 if 'ratebypass' not in url:
1102                     url += '&ratebypass=yes'
1103                 url_map[format_id] = url
1104             formats = _map_to_format_list(url_map)
1105         elif video_info.get('hlsvp'):
1106             manifest_url = video_info['hlsvp'][0]
1107             url_map = self._extract_from_m3u8(manifest_url, video_id)
1108             formats = _map_to_format_list(url_map)
1109         else:
1110             raise ExtractorError('no conn, hlsvp or url_encoded_fmt_stream_map information found in video info')
1111
1112         # Look for the DASH manifest
1113         if self._downloader.params.get('youtube_include_dash_manifest', True):
1114             dash_mpd = video_info.get('dashmpd')
1115             if dash_mpd:
1116                 dash_manifest_url = dash_mpd[0]
1117                 try:
1118                     dash_formats = self._parse_dash_manifest(
1119                         video_id, dash_manifest_url, player_url, age_gate)
1120                 except (ExtractorError, KeyError) as e:
1121                     self.report_warning(
1122                         'Skipping DASH manifest: %r' % e, video_id)
1123                 else:
1124                     # Hide the formats we found through non-DASH
1125                     dash_keys = set(df['format_id'] for df in dash_formats)
1126                     for f in formats:
1127                         if f['format_id'] in dash_keys:
1128                             f['format_id'] = 'nondash-%s' % f['format_id']
1129                             f['preference'] = f.get('preference', 0) - 10000
1130                     formats.extend(dash_formats)
1131
1132         # Check for malformed aspect ratio
1133         stretched_m = re.search(
1134             r'<meta\s+property="og:video:tag".*?content="yt:stretch=(?P<w>[0-9]+):(?P<h>[0-9]+)">',
1135             video_webpage)
1136         if stretched_m:
1137             ratio = float(stretched_m.group('w')) / float(stretched_m.group('h'))
1138             for f in formats:
1139                 if f.get('vcodec') != 'none':
1140                     f['stretched_ratio'] = ratio
1141
1142         self._sort_formats(formats)
1143
1144         return {
1145             'id': video_id,
1146             'uploader': video_uploader,
1147             'uploader_id': video_uploader_id,
1148             'upload_date': upload_date,
1149             'title': video_title,
1150             'thumbnail': video_thumbnail,
1151             'description': video_description,
1152             'categories': video_categories,
1153             'subtitles': video_subtitles,
1154             'automatic_captions': automatic_captions,
1155             'duration': video_duration,
1156             'age_limit': 18 if age_gate else 0,
1157             'annotations': video_annotations,
1158             'webpage_url': proto + '://www.youtube.com/watch?v=%s' % video_id,
1159             'view_count': view_count,
1160             'like_count': like_count,
1161             'dislike_count': dislike_count,
1162             'average_rating': float_or_none(video_info.get('avg_rating', [None])[0]),
1163             'formats': formats,
1164         }
1165
1166
1167 class YoutubePlaylistIE(YoutubeBaseInfoExtractor):
1168     IE_DESC = 'YouTube.com playlists'
1169     _VALID_URL = r"""(?x)(?:
1170                         (?:https?://)?
1171                         (?:\w+\.)?
1172                         youtube\.com/
1173                         (?:
1174                            (?:course|view_play_list|my_playlists|artist|playlist|watch|embed/videoseries)
1175                            \? (?:.*?&)*? (?:p|a|list)=
1176                         |  p/
1177                         )
1178                         (
1179                             (?:PL|LL|EC|UU|FL|RD|UL)?[0-9A-Za-z-_]{10,}
1180                             # Top tracks, they can also include dots
1181                             |(?:MC)[\w\.]*
1182                         )
1183                         .*
1184                      |
1185                         ((?:PL|LL|EC|UU|FL|RD|UL)[0-9A-Za-z-_]{10,})
1186                      )"""
1187     _TEMPLATE_URL = 'https://www.youtube.com/playlist?list=%s'
1188     _VIDEO_RE = r'href="\s*/watch\?v=(?P<id>[0-9A-Za-z_-]{11})&amp;[^"]*?index=(?P<index>\d+)'
1189     IE_NAME = 'youtube:playlist'
1190     _TESTS = [{
1191         'url': 'https://www.youtube.com/playlist?list=PLwiyx1dc3P2JR9N8gQaQN_BCvlSlap7re',
1192         'info_dict': {
1193             'title': 'ytdl test PL',
1194             'id': 'PLwiyx1dc3P2JR9N8gQaQN_BCvlSlap7re',
1195         },
1196         'playlist_count': 3,
1197     }, {
1198         'url': 'https://www.youtube.com/playlist?list=PLtPgu7CB4gbZDA7i_euNxn75ISqxwZPYx',
1199         'info_dict': {
1200             'id': 'PLtPgu7CB4gbZDA7i_euNxn75ISqxwZPYx',
1201             'title': 'YDL_Empty_List',
1202         },
1203         'playlist_count': 0,
1204     }, {
1205         'note': 'Playlist with deleted videos (#651). As a bonus, the video #51 is also twice in this list.',
1206         'url': 'https://www.youtube.com/playlist?list=PLwP_SiAcdui0KVebT0mU9Apz359a4ubsC',
1207         'info_dict': {
1208             'title': '29C3: Not my department',
1209             'id': 'PLwP_SiAcdui0KVebT0mU9Apz359a4ubsC',
1210         },
1211         'playlist_count': 95,
1212     }, {
1213         'note': 'issue #673',
1214         'url': 'PLBB231211A4F62143',
1215         'info_dict': {
1216             'title': '[OLD]Team Fortress 2 (Class-based LP)',
1217             'id': 'PLBB231211A4F62143',
1218         },
1219         'playlist_mincount': 26,
1220     }, {
1221         'note': 'Large playlist',
1222         'url': 'https://www.youtube.com/playlist?list=UUBABnxM4Ar9ten8Mdjj1j0Q',
1223         'info_dict': {
1224             'title': 'Uploads from Cauchemar',
1225             'id': 'UUBABnxM4Ar9ten8Mdjj1j0Q',
1226         },
1227         'playlist_mincount': 799,
1228     }, {
1229         'url': 'PLtPgu7CB4gbY9oDN3drwC3cMbJggS7dKl',
1230         'info_dict': {
1231             'title': 'YDL_safe_search',
1232             'id': 'PLtPgu7CB4gbY9oDN3drwC3cMbJggS7dKl',
1233         },
1234         'playlist_count': 2,
1235     }, {
1236         'note': 'embedded',
1237         'url': 'http://www.youtube.com/embed/videoseries?list=PL6IaIsEjSbf96XFRuNccS_RuEXwNdsoEu',
1238         'playlist_count': 4,
1239         'info_dict': {
1240             'title': 'JODA15',
1241             'id': 'PL6IaIsEjSbf96XFRuNccS_RuEXwNdsoEu',
1242         }
1243     }, {
1244         'note': 'Embedded SWF player',
1245         'url': 'http://www.youtube.com/p/YN5VISEtHet5D4NEvfTd0zcgFk84NqFZ?hl=en_US&fs=1&rel=0',
1246         'playlist_count': 4,
1247         'info_dict': {
1248             'title': 'JODA7',
1249             'id': 'YN5VISEtHet5D4NEvfTd0zcgFk84NqFZ',
1250         }
1251     }, {
1252         'note': 'Buggy playlist: the webpage has a "Load more" button but it doesn\'t have more videos',
1253         'url': 'https://www.youtube.com/playlist?list=UUXw-G3eDE9trcvY2sBMM_aA',
1254         'info_dict': {
1255             'title': 'Uploads from Interstellar Movie',
1256             'id': 'UUXw-G3eDE9trcvY2sBMM_aA',
1257         },
1258         'playlist_mincout': 21,
1259     }]
1260
1261     def _real_initialize(self):
1262         self._login()
1263
1264     def _ids_to_results(self, ids):
1265         return [
1266             self.url_result(vid_id, 'Youtube', video_id=vid_id)
1267             for vid_id in ids]
1268
1269     def _extract_mix(self, playlist_id):
1270         # The mixes are generated from a single video
1271         # the id of the playlist is just 'RD' + video_id
1272         url = 'https://youtube.com/watch?v=%s&list=%s' % (playlist_id[-11:], playlist_id)
1273         webpage = self._download_webpage(
1274             url, playlist_id, 'Downloading Youtube mix')
1275         search_title = lambda class_name: get_element_by_attribute('class', class_name, webpage)
1276         title_span = (
1277             search_title('playlist-title') or
1278             search_title('title long-title') or
1279             search_title('title'))
1280         title = clean_html(title_span)
1281         ids = orderedSet(re.findall(
1282             r'''(?xs)data-video-username=".*?".*?
1283                        href="/watch\?v=([0-9A-Za-z_-]{11})&amp;[^"]*?list=%s''' % re.escape(playlist_id),
1284             webpage))
1285         url_results = self._ids_to_results(ids)
1286
1287         return self.playlist_result(url_results, playlist_id, title)
1288
1289     def _extract_playlist(self, playlist_id):
1290         url = self._TEMPLATE_URL % playlist_id
1291         page = self._download_webpage(url, playlist_id)
1292         more_widget_html = content_html = page
1293
1294         for match in re.findall(r'<div class="yt-alert-message">([^<]+)</div>', page):
1295             match = match.strip()
1296             # Check if the playlist exists or is private
1297             if re.match(r'[^<]*(The|This) playlist (does not exist|is private)[^<]*', match):
1298                 raise ExtractorError(
1299                     'The playlist doesn\'t exist or is private, use --username or '
1300                     '--netrc to access it.',
1301                     expected=True)
1302             elif re.match(r'[^<]*Invalid parameters[^<]*', match):
1303                 raise ExtractorError(
1304                     'Invalid parameters. Maybe URL is incorrect.',
1305                     expected=True)
1306             elif re.match(r'[^<]*Choose your language[^<]*', match):
1307                 continue
1308             else:
1309                 self.report_warning('Youtube gives an alert message: ' + match)
1310
1311         # Extract the video ids from the playlist pages
1312         ids = []
1313
1314         for page_num in itertools.count(1):
1315             matches = re.finditer(self._VIDEO_RE, content_html)
1316             # We remove the duplicates and the link with index 0
1317             # (it's not the first video of the playlist)
1318             new_ids = orderedSet(m.group('id') for m in matches if m.group('index') != '0')
1319             ids.extend(new_ids)
1320
1321             mobj = re.search(r'data-uix-load-more-href="/?(?P<more>[^"]+)"', more_widget_html)
1322             if not mobj:
1323                 break
1324
1325             more = self._download_json(
1326                 'https://youtube.com/%s' % mobj.group('more'), playlist_id,
1327                 'Downloading page #%s' % page_num,
1328                 transform_source=uppercase_escape)
1329             content_html = more['content_html']
1330             if not content_html.strip():
1331                 # Some webpages show a "Load more" button but they don't
1332                 # have more videos
1333                 break
1334             more_widget_html = more['load_more_widget_html']
1335
1336         playlist_title = self._html_search_regex(
1337             r'(?s)<h1 class="pl-header-title[^"]*">\s*(.*?)\s*</h1>',
1338             page, 'title')
1339
1340         url_results = self._ids_to_results(ids)
1341         return self.playlist_result(url_results, playlist_id, playlist_title)
1342
1343     def _real_extract(self, url):
1344         # Extract playlist id
1345         mobj = re.match(self._VALID_URL, url)
1346         if mobj is None:
1347             raise ExtractorError('Invalid URL: %s' % url)
1348         playlist_id = mobj.group(1) or mobj.group(2)
1349
1350         # Check if it's a video-specific URL
1351         query_dict = compat_urlparse.parse_qs(compat_urlparse.urlparse(url).query)
1352         if 'v' in query_dict:
1353             video_id = query_dict['v'][0]
1354             if self._downloader.params.get('noplaylist'):
1355                 self.to_screen('Downloading just video %s because of --no-playlist' % video_id)
1356                 return self.url_result(video_id, 'Youtube', video_id=video_id)
1357             else:
1358                 self.to_screen('Downloading playlist %s - add --no-playlist to just download video %s' % (playlist_id, video_id))
1359
1360         if playlist_id.startswith('RD') or playlist_id.startswith('UL'):
1361             # Mixes require a custom extraction process
1362             return self._extract_mix(playlist_id)
1363
1364         return self._extract_playlist(playlist_id)
1365
1366
1367 class YoutubeChannelIE(InfoExtractor):
1368     IE_DESC = 'YouTube.com channels'
1369     _VALID_URL = r'https?://(?:youtu\.be|(?:\w+\.)?youtube(?:-nocookie)?\.com)/channel/(?P<id>[0-9A-Za-z_-]+)'
1370     _TEMPLATE_URL = 'https://www.youtube.com/channel/%s/videos'
1371     IE_NAME = 'youtube:channel'
1372     _TESTS = [{
1373         'note': 'paginated channel',
1374         'url': 'https://www.youtube.com/channel/UCKfVa3S1e4PHvxWcwyMMg8w',
1375         'playlist_mincount': 91,
1376         'info_dict': {
1377             'id': 'UCKfVa3S1e4PHvxWcwyMMg8w',
1378         }
1379     }]
1380
1381     @staticmethod
1382     def extract_videos_from_page(page):
1383         ids_in_page = []
1384         titles_in_page = []
1385         for mobj in re.finditer(r'(?:title="(?P<title>[^"]+)"[^>]+)?href="/watch\?v=(?P<id>[0-9A-Za-z_-]+)&?', page):
1386             video_id = mobj.group('id')
1387             video_title = unescapeHTML(mobj.group('title'))
1388             try:
1389                 idx = ids_in_page.index(video_id)
1390                 if video_title and not titles_in_page[idx]:
1391                     titles_in_page[idx] = video_title
1392             except ValueError:
1393                 ids_in_page.append(video_id)
1394                 titles_in_page.append(video_title)
1395         return zip(ids_in_page, titles_in_page)
1396
1397     def _real_extract(self, url):
1398         channel_id = self._match_id(url)
1399
1400         url = self._TEMPLATE_URL % channel_id
1401         channel_page = self._download_webpage(url, channel_id, 'Downloading page #1')
1402         autogenerated = re.search(r'''(?x)
1403                 class="[^"]*?(?:
1404                     channel-header-autogenerated-label|
1405                     yt-channel-title-autogenerated
1406                 )[^"]*"''', channel_page) is not None
1407
1408         if autogenerated:
1409             # The videos are contained in a single page
1410             # the ajax pages can't be used, they are empty
1411             entries = [
1412                 self.url_result(
1413                     video_id, 'Youtube', video_id=video_id,
1414                     video_title=video_title)
1415                 for video_id, video_title in self.extract_videos_from_page(channel_page)]
1416             return self.playlist_result(entries, channel_id)
1417
1418         def _entries():
1419             more_widget_html = content_html = channel_page
1420             for pagenum in itertools.count(1):
1421
1422                 for video_id, video_title in self.extract_videos_from_page(content_html):
1423                     yield self.url_result(
1424                         video_id, 'Youtube', video_id=video_id,
1425                         video_title=video_title)
1426
1427                 mobj = re.search(
1428                     r'data-uix-load-more-href="/?(?P<more>[^"]+)"',
1429                     more_widget_html)
1430                 if not mobj:
1431                     break
1432
1433                 more = self._download_json(
1434                     'https://youtube.com/%s' % mobj.group('more'), channel_id,
1435                     'Downloading page #%s' % (pagenum + 1),
1436                     transform_source=uppercase_escape)
1437                 content_html = more['content_html']
1438                 more_widget_html = more['load_more_widget_html']
1439
1440         return self.playlist_result(_entries(), channel_id)
1441
1442
1443 class YoutubeUserIE(YoutubeChannelIE):
1444     IE_DESC = 'YouTube.com user videos (URL or "ytuser" keyword)'
1445     _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_-]+)'
1446     _TEMPLATE_URL = 'https://www.youtube.com/user/%s/videos'
1447     IE_NAME = 'youtube:user'
1448
1449     _TESTS = [{
1450         'url': 'https://www.youtube.com/user/TheLinuxFoundation',
1451         'playlist_mincount': 320,
1452         'info_dict': {
1453             'title': 'TheLinuxFoundation',
1454         }
1455     }, {
1456         'url': 'ytuser:phihag',
1457         'only_matching': True,
1458     }]
1459
1460     @classmethod
1461     def suitable(cls, url):
1462         # Don't return True if the url can be extracted with other youtube
1463         # extractor, the regex would is too permissive and it would match.
1464         other_ies = iter(klass for (name, klass) in globals().items() if name.endswith('IE') and klass is not cls)
1465         if any(ie.suitable(url) for ie in other_ies):
1466             return False
1467         else:
1468             return super(YoutubeUserIE, cls).suitable(url)
1469
1470
1471 class YoutubeSearchIE(SearchInfoExtractor, YoutubePlaylistIE):
1472     IE_DESC = 'YouTube.com searches'
1473     # there doesn't appear to be a real limit, for example if you search for
1474     # 'python' you get more than 8.000.000 results
1475     _MAX_RESULTS = float('inf')
1476     IE_NAME = 'youtube:search'
1477     _SEARCH_KEY = 'ytsearch'
1478     _EXTRA_QUERY_ARGS = {}
1479     _TESTS = []
1480
1481     def _get_n_results(self, query, n):
1482         """Get a specified number of results for a query"""
1483
1484         videos = []
1485         limit = n
1486
1487         for pagenum in itertools.count(1):
1488             url_query = {
1489                 'search_query': query,
1490                 'page': pagenum,
1491                 'spf': 'navigate',
1492             }
1493             url_query.update(self._EXTRA_QUERY_ARGS)
1494             result_url = 'https://www.youtube.com/results?' + compat_urllib_parse.urlencode(url_query)
1495             data = self._download_json(
1496                 result_url, video_id='query "%s"' % query,
1497                 note='Downloading page %s' % pagenum,
1498                 errnote='Unable to download API page')
1499             html_content = data[1]['body']['content']
1500
1501             if 'class="search-message' in html_content:
1502                 raise ExtractorError(
1503                     '[youtube] No video results', expected=True)
1504
1505             new_videos = self._ids_to_results(orderedSet(re.findall(
1506                 r'href="/watch\?v=(.{11})', html_content)))
1507             videos += new_videos
1508             if not new_videos or len(videos) > limit:
1509                 break
1510
1511         if len(videos) > n:
1512             videos = videos[:n]
1513         return self.playlist_result(videos, query)
1514
1515
1516 class YoutubeSearchDateIE(YoutubeSearchIE):
1517     IE_NAME = YoutubeSearchIE.IE_NAME + ':date'
1518     _SEARCH_KEY = 'ytsearchdate'
1519     IE_DESC = 'YouTube.com searches, newest videos first'
1520     _EXTRA_QUERY_ARGS = {'search_sort': 'video_date_uploaded'}
1521
1522
1523 class YoutubeSearchURLIE(InfoExtractor):
1524     IE_DESC = 'YouTube.com search URLs'
1525     IE_NAME = 'youtube:search_url'
1526     _VALID_URL = r'https?://(?:www\.)?youtube\.com/results\?(.*?&)?search_query=(?P<query>[^&]+)(?:[&]|$)'
1527     _TESTS = [{
1528         'url': 'https://www.youtube.com/results?baz=bar&search_query=youtube-dl+test+video&filters=video&lclk=video',
1529         'playlist_mincount': 5,
1530         'info_dict': {
1531             'title': 'youtube-dl test video',
1532         }
1533     }]
1534
1535     def _real_extract(self, url):
1536         mobj = re.match(self._VALID_URL, url)
1537         query = compat_urllib_parse.unquote_plus(mobj.group('query'))
1538
1539         webpage = self._download_webpage(url, query)
1540         result_code = self._search_regex(
1541             r'(?s)<ol[^>]+class="item-section"(.*?)</ol>', webpage, 'result HTML')
1542
1543         part_codes = re.findall(
1544             r'(?s)<h3 class="yt-lockup-title">(.*?)</h3>', result_code)
1545         entries = []
1546         for part_code in part_codes:
1547             part_title = self._html_search_regex(
1548                 [r'(?s)title="([^"]+)"', r'>([^<]+)</a>'], part_code, 'item title', fatal=False)
1549             part_url_snippet = self._html_search_regex(
1550                 r'(?s)href="([^"]+)"', part_code, 'item URL')
1551             part_url = compat_urlparse.urljoin(
1552                 'https://www.youtube.com/', part_url_snippet)
1553             entries.append({
1554                 '_type': 'url',
1555                 'url': part_url,
1556                 'title': part_title,
1557             })
1558
1559         return {
1560             '_type': 'playlist',
1561             'entries': entries,
1562             'title': query,
1563         }
1564
1565
1566 class YoutubeShowIE(InfoExtractor):
1567     IE_DESC = 'YouTube.com (multi-season) shows'
1568     _VALID_URL = r'https?://www\.youtube\.com/show/(?P<id>[^?#]*)'
1569     IE_NAME = 'youtube:show'
1570     _TESTS = [{
1571         'url': 'http://www.youtube.com/show/airdisasters',
1572         'playlist_mincount': 3,
1573         'info_dict': {
1574             'id': 'airdisasters',
1575             'title': 'Air Disasters',
1576         }
1577     }]
1578
1579     def _real_extract(self, url):
1580         mobj = re.match(self._VALID_URL, url)
1581         playlist_id = mobj.group('id')
1582         webpage = self._download_webpage(
1583             url, playlist_id, 'Downloading show webpage')
1584         # There's one playlist for each season of the show
1585         m_seasons = list(re.finditer(r'href="(/playlist\?list=.*?)"', webpage))
1586         self.to_screen('%s: Found %s seasons' % (playlist_id, len(m_seasons)))
1587         entries = [
1588             self.url_result(
1589                 'https://www.youtube.com' + season.group(1), 'YoutubePlaylist')
1590             for season in m_seasons
1591         ]
1592         title = self._og_search_title(webpage, fatal=False)
1593
1594         return {
1595             '_type': 'playlist',
1596             'id': playlist_id,
1597             'title': title,
1598             'entries': entries,
1599         }
1600
1601
1602 class YoutubeFeedsInfoExtractor(YoutubeBaseInfoExtractor):
1603     """
1604     Base class for extractors that fetch info from
1605     http://www.youtube.com/feed_ajax
1606     Subclasses must define the _FEED_NAME and _PLAYLIST_TITLE properties.
1607     """
1608     _LOGIN_REQUIRED = True
1609     # use action_load_personal_feed instead of action_load_system_feed
1610     _PERSONAL_FEED = False
1611
1612     @property
1613     def _FEED_TEMPLATE(self):
1614         action = 'action_load_system_feed'
1615         if self._PERSONAL_FEED:
1616             action = 'action_load_personal_feed'
1617         return 'https://www.youtube.com/feed_ajax?%s=1&feed_name=%s&paging=%%s' % (action, self._FEED_NAME)
1618
1619     @property
1620     def IE_NAME(self):
1621         return 'youtube:%s' % self._FEED_NAME
1622
1623     def _real_initialize(self):
1624         self._login()
1625
1626     def _real_extract(self, url):
1627         feed_entries = []
1628         paging = 0
1629         for i in itertools.count(1):
1630             info = self._download_json(
1631                 self._FEED_TEMPLATE % paging,
1632                 '%s feed' % self._FEED_NAME,
1633                 'Downloading page %s' % i,
1634                 transform_source=uppercase_escape)
1635             feed_html = info.get('feed_html') or info.get('content_html')
1636             load_more_widget_html = info.get('load_more_widget_html') or feed_html
1637             m_ids = re.finditer(r'"/watch\?v=(.*?)["&]', feed_html)
1638             ids = orderedSet(m.group(1) for m in m_ids)
1639             feed_entries.extend(
1640                 self.url_result(video_id, 'Youtube', video_id=video_id)
1641                 for video_id in ids)
1642             mobj = re.search(
1643                 r'data-uix-load-more-href="/?[^"]+paging=(?P<paging>\d+)',
1644                 load_more_widget_html)
1645             if mobj is None:
1646                 break
1647             paging = mobj.group('paging')
1648         return self.playlist_result(feed_entries, playlist_title=self._PLAYLIST_TITLE)
1649
1650
1651 class YoutubeRecommendedIE(YoutubeFeedsInfoExtractor):
1652     IE_NAME = 'youtube:recommended'
1653     IE_DESC = 'YouTube.com recommended videos, ":ytrec" for short (requires authentication)'
1654     _VALID_URL = r'https?://www\.youtube\.com/feed/recommended|:ytrec(?:ommended)?'
1655     _FEED_NAME = 'recommended'
1656     _PLAYLIST_TITLE = 'Youtube Recommended videos'
1657
1658
1659 class YoutubeWatchLaterIE(YoutubePlaylistIE):
1660     IE_NAME = 'youtube:watchlater'
1661     IE_DESC = 'Youtube watch later list, ":ytwatchlater" for short (requires authentication)'
1662     _VALID_URL = r'https?://www\.youtube\.com/(?:feed/watch_later|playlist\?list=WL)|:ytwatchlater'
1663
1664     _TESTS = []  # override PlaylistIE tests
1665
1666     def _real_extract(self, url):
1667         return self._extract_playlist('WL')
1668
1669
1670 class YoutubeHistoryIE(YoutubePlaylistIE):
1671     IE_NAME = 'youtube:history'
1672     IE_DESC = 'Youtube watch history, ":ythistory" for short (requires authentication)'
1673     _VALID_URL = 'https?://www\.youtube\.com/feed/history|:ythistory'
1674     _TESTS = []
1675
1676     def _real_extract(self, url):
1677         title = 'Youtube History'
1678         page = self._download_webpage('https://www.youtube.com/feed/history', title)
1679
1680         # The extraction process is the same as for playlists, but the regex
1681         # for the video ids doesn't contain an index
1682         ids = []
1683         more_widget_html = content_html = page
1684
1685         for page_num in itertools.count(1):
1686             matches = re.findall(r'href="\s*/watch\?v=([0-9A-Za-z_-]{11})', content_html)
1687             new_ids = orderedSet(matches)
1688             ids.extend(new_ids)
1689
1690             mobj = re.search(r'data-uix-load-more-href="/?(?P<more>[^"]+)"', more_widget_html)
1691             if not mobj:
1692                 break
1693
1694             more = self._download_json(
1695                 'https://youtube.com/%s' % mobj.group('more'), title,
1696                 'Downloading page #%s' % page_num,
1697                 transform_source=uppercase_escape)
1698             content_html = more['content_html']
1699             more_widget_html = more['load_more_widget_html']
1700
1701         return {
1702             '_type': 'playlist',
1703             'title': title,
1704             'entries': self._ids_to_results(ids),
1705         }
1706
1707
1708 class YoutubeFavouritesIE(YoutubeBaseInfoExtractor):
1709     IE_NAME = 'youtube:favorites'
1710     IE_DESC = 'YouTube.com favourite videos, ":ytfav" for short (requires authentication)'
1711     _VALID_URL = r'https?://www\.youtube\.com/my_favorites|:ytfav(?:ou?rites)?'
1712     _LOGIN_REQUIRED = True
1713
1714     def _real_extract(self, url):
1715         webpage = self._download_webpage('https://www.youtube.com/my_favorites', 'Youtube Favourites videos')
1716         playlist_id = self._search_regex(r'list=(.+?)["&]', webpage, 'favourites playlist id')
1717         return self.url_result(playlist_id, 'YoutubePlaylist')
1718
1719
1720 class YoutubeSubscriptionsIE(YoutubePlaylistIE):
1721     IE_NAME = 'youtube:subscriptions'
1722     IE_DESC = 'YouTube.com subscriptions feed, "ytsubs" keyword (requires authentication)'
1723     _VALID_URL = r'https?://www\.youtube\.com/feed/subscriptions|:ytsubs(?:criptions)?'
1724     _TESTS = []
1725
1726     def _real_extract(self, url):
1727         title = 'Youtube Subscriptions'
1728         page = self._download_webpage('https://www.youtube.com/feed/subscriptions', title)
1729
1730         # The extraction process is the same as for playlists, but the regex
1731         # for the video ids doesn't contain an index
1732         ids = []
1733         more_widget_html = content_html = page
1734
1735         for page_num in itertools.count(1):
1736             matches = re.findall(r'href="\s*/watch\?v=([0-9A-Za-z_-]{11})', content_html)
1737             new_ids = orderedSet(matches)
1738             ids.extend(new_ids)
1739
1740             mobj = re.search(r'data-uix-load-more-href="/?(?P<more>[^"]+)"', more_widget_html)
1741             if not mobj:
1742                 break
1743
1744             more = self._download_json(
1745                 'https://youtube.com/%s' % mobj.group('more'), title,
1746                 'Downloading page #%s' % page_num,
1747                 transform_source=uppercase_escape)
1748             content_html = more['content_html']
1749             more_widget_html = more['load_more_widget_html']
1750
1751         return {
1752             '_type': 'playlist',
1753             'title': title,
1754             'entries': self._ids_to_results(ids),
1755         }
1756
1757
1758 class YoutubeTruncatedURLIE(InfoExtractor):
1759     IE_NAME = 'youtube:truncated_url'
1760     IE_DESC = False  # Do not list
1761     _VALID_URL = r'''(?x)
1762         (?:https?://)?
1763         (?:\w+\.)?[yY][oO][uU][tT][uU][bB][eE](?:-nocookie)?\.com/
1764         (?:watch\?(?:
1765             feature=[a-z_]+|
1766             annotation_id=annotation_[^&]+|
1767             x-yt-cl=[0-9]+|
1768             hl=[^&]*|
1769         )?
1770         |
1771             attribution_link\?a=[^&]+
1772         )
1773         $
1774     '''
1775
1776     _TESTS = [{
1777         'url': 'http://www.youtube.com/watch?annotation_id=annotation_3951667041',
1778         'only_matching': True,
1779     }, {
1780         'url': 'http://www.youtube.com/watch?',
1781         'only_matching': True,
1782     }, {
1783         'url': 'https://www.youtube.com/watch?x-yt-cl=84503534',
1784         'only_matching': True,
1785     }, {
1786         'url': 'https://www.youtube.com/watch?feature=foo',
1787         'only_matching': True,
1788     }, {
1789         'url': 'https://www.youtube.com/watch?hl=en-GB',
1790         'only_matching': True,
1791     }]
1792
1793     def _real_extract(self, url):
1794         raise ExtractorError(
1795             'Did you forget to quote the URL? Remember that & is a meta '
1796             'character in most shells, so you want to put the URL in quotes, '
1797             'like  youtube-dl '
1798             '"http://www.youtube.com/watch?feature=foo&v=BaW_jenozKc" '
1799             ' or simply  youtube-dl BaW_jenozKc  .',
1800             expected=True)
1801
1802
1803 class YoutubeTruncatedIDIE(InfoExtractor):
1804     IE_NAME = 'youtube:truncated_id'
1805     IE_DESC = False  # Do not list
1806     _VALID_URL = r'https?://(?:www\.)?youtube\.com/watch\?v=(?P<id>[0-9A-Za-z_-]{1,10})$'
1807
1808     _TESTS = [{
1809         'url': 'https://www.youtube.com/watch?v=N_708QY7Ob',
1810         'only_matching': True,
1811     }]
1812
1813     def _real_extract(self, url):
1814         video_id = self._match_id(url)
1815         raise ExtractorError(
1816             'Incomplete YouTube ID %s. URL %s looks truncated.' % (video_id, url),
1817             expected=True)