yt_dlp/extractor/vk.py

   1 import collections
   2 import hashlib
   3 import re
   4
   5 from .common import InfoExtractor
   6 from .dailymotion import DailymotionIE
   7 from .odnoklassniki import OdnoklassnikiIE
   8 from .pladform import PladformIE
   9 from .vimeo import VimeoIE
  10 from .youtube import YoutubeIE
  11 from ..compat import compat_urlparse
  12 from ..utils import (
  13     ExtractorError,
  14     clean_html,
  15     get_element_by_class,
  16     int_or_none,
  17     orderedSet,
  18     str_or_none,
  19     str_to_int,
  20     unescapeHTML,
  21     unified_timestamp,
  22     update_url_query,
  23     url_or_none,
  24     urlencode_postdata,
  25 )
  26
  27
  28 class VKBaseIE(InfoExtractor):
  29     _NETRC_MACHINE = 'vk'
  30
  31     def _download_webpage_handle(self, url_or_request, video_id, *args, fatal=True, **kwargs):
  32         response = super()._download_webpage_handle(url_or_request, video_id, *args, fatal=fatal, **kwargs)
  33         challenge_url, cookie = response[1].geturl() if response else '', None
  34         if challenge_url.startswith('https://vk.com/429.html?'):
  35             cookie = self._get_cookies(challenge_url).get('hash429')
  36         if not cookie:
  37             return response
  38
  39         hash429 = hashlib.md5(cookie.value.encode('ascii')).hexdigest()
  40         self._request_webpage(
  41             update_url_query(challenge_url, {'key': hash429}), video_id, fatal=fatal,
  42             note='Resolving WAF challenge', errnote='Failed to bypass WAF challenge')
  43         return super()._download_webpage_handle(url_or_request, video_id, *args, fatal=True, **kwargs)
  44
  45     def _perform_login(self, username, password):
  46         login_page, url_handle = self._download_webpage_handle(
  47             'https://vk.com', None, 'Downloading login page')
  48
  49         login_form = self._hidden_inputs(login_page)
  50
  51         login_form.update({
  52             'email': username.encode('cp1251'),
  53             'pass': password.encode('cp1251'),
  54         })
  55
  56         # vk serves two same remixlhk cookies in Set-Cookie header and expects
  57         # first one to be actually set
  58         self._apply_first_set_cookie_header(url_handle, 'remixlhk')
  59
  60         login_page = self._download_webpage(
  61             'https://vk.com/login', None,
  62             note='Logging in',
  63             data=urlencode_postdata(login_form))
  64
  65         if re.search(r'onLoginFailed', login_page):
  66             raise ExtractorError(
  67                 'Unable to login, incorrect username and/or password', expected=True)
  68
  69     def _download_payload(self, path, video_id, data, fatal=True):
  70         endpoint = f'https://vk.com/{path}.php'
  71         data['al'] = 1
  72         code, payload = self._download_json(
  73             endpoint, video_id, data=urlencode_postdata(data), fatal=fatal,
  74             headers={
  75                 'Referer': endpoint,
  76                 'X-Requested-With': 'XMLHttpRequest',
  77             })['payload']
  78         if code == '3':
  79             self.raise_login_required()
  80         elif code == '8':
  81             raise ExtractorError(clean_html(payload[0][1:-1]), expected=True)
  82         return payload
  83
  84
  85 class VKIE(VKBaseIE):
  86     IE_NAME = 'vk'
  87     IE_DESC = 'VK'
  88     _EMBED_REGEX = [r'<iframe[^>]+?src=(["\'])(?P<url>https?://vk\.com/video_ext\.php.+?)\1']
  89     _VALID_URL = r'''(?x)
  90                     https?://
  91                         (?:
  92                             (?:
  93                                 (?:(?:m|new)\.)?vk\.com/video_|
  94                                 (?:www\.)?daxab.com/
  95                             )
  96                             ext\.php\?(?P<embed_query>.*?\boid=(?P<oid>-?\d+).*?\bid=(?P<id>\d+).*)|
  97                             (?:
  98                                 (?:(?:m|new)\.)?vk\.com/(?:.+?\?.*?z=)?(?:video|clip)|
  99                                 (?:www\.)?daxab.com/embed/
 100                             )
 101                             (?P<videoid>-?\d+_\d+)(?:.*\blist=(?P<list_id>([\da-f]+)|(ln-[\da-zA-Z]+)))?
 102                         )
 103                     '''
 104     # https://help.sibnet.ru/?sibnet_video_embed
 105     _EMBED_REGEX = [r'<iframe\b[^>]+\bsrc=(["\'])(?P<url>(?:https?:)?//video\.sibnet\.ru/shell\.php\?.*?\bvideoid=\d+.*?)\1']
 106     _TESTS = [
 107         {
 108             'url': 'http://vk.com/videos-77521?z=video-77521_162222515%2Fclub77521',
 109             'info_dict': {
 110                 'id': '-77521_162222515',
 111                 'ext': 'mp4',
 112                 'title': 'ProtivoGunz - Хуёвая песня',
 113                 'uploader': 're:(?:Noize MC|Alexander Ilyashenko).*',
 114                 'uploader_id': '39545378',
 115                 'duration': 195,
 116                 'timestamp': 1329049880,
 117                 'upload_date': '20120212',
 118                 'comment_count': int,
 119                 'like_count': int,
 120                 'thumbnail': r're:https?://.+\.jpg$',
 121             },
 122             'params': {'skip_download': 'm3u8'},
 123         },
 124         {
 125             'url': 'http://vk.com/video205387401_165548505',
 126             'info_dict': {
 127                 'id': '205387401_165548505',
 128                 'ext': 'mp4',
 129                 'title': 'No name',
 130                 'uploader': 'Tom Cruise',
 131                 'uploader_id': '205387401',
 132                 'duration': 9,
 133                 'timestamp': 1374364108,
 134                 'upload_date': '20130720',
 135                 'comment_count': int,
 136                 'like_count': int,
 137                 'thumbnail': r're:https?://.+\.jpg$',
 138             }
 139         },
 140         {
 141             'note': 'Embedded video',
 142             'url': 'https://vk.com/video_ext.php?oid=-77521&id=162222515&hash=87b046504ccd8bfa',
 143             'info_dict': {
 144                 'id': '-77521_162222515',
 145                 'ext': 'mp4',
 146                 'uploader': 're:(?:Noize MC|Alexander Ilyashenko).*',
 147                 'title': 'ProtivoGunz - Хуёвая песня',
 148                 'duration': 195,
 149                 'upload_date': '20120212',
 150                 'timestamp': 1329049880,
 151                 'uploader_id': '39545378',
 152                 'thumbnail': r're:https?://.+\.jpg$',
 153             },
 154             'params': {'skip_download': 'm3u8'},
 155         },
 156         {
 157             # VIDEO NOW REMOVED
 158             # please update if you find a video whose URL follows the same pattern
 159             'url': 'http://vk.com/video-8871596_164049491',
 160             'md5': 'a590bcaf3d543576c9bd162812387666',
 161             'note': 'Only available for registered users',
 162             'info_dict': {
 163                 'id': '-8871596_164049491',
 164                 'ext': 'mp4',
 165                 'uploader': 'Триллеры',
 166                 'title': '► Бойцовский клуб / Fight Club 1999 [HD 720]',
 167                 'duration': 8352,
 168                 'upload_date': '20121218',
 169                 'view_count': int,
 170             },
 171             'skip': 'Removed',
 172         },
 173         {
 174             'url': 'http://vk.com/hd_kino_mania?z=video-43215063_168067957%2F15c66b9b533119788d',
 175             'info_dict': {
 176                 'id': '-43215063_168067957',
 177                 'ext': 'mp4',
 178                 'uploader': 'Bro Mazter',
 179                 'title': ' ',
 180                 'duration': 7291,
 181                 'upload_date': '20140328',
 182                 'uploader_id': '223413403',
 183                 'timestamp': 1396018030,
 184             },
 185             'skip': 'Requires vk account credentials',
 186         },
 187         {
 188             'url': 'http://m.vk.com/video-43215063_169084319?list=125c627d1aa1cebb83&from=wall-43215063_2566540',
 189             'md5': '0c45586baa71b7cb1d0784ee3f4e00a6',
 190             'note': 'ivi.ru embed',
 191             'info_dict': {
 192                 'id': '-43215063_169084319',
 193                 'ext': 'mp4',
 194                 'title': 'Книга Илая',
 195                 'duration': 6771,
 196                 'upload_date': '20140626',
 197                 'view_count': int,
 198             },
 199             'skip': 'Removed',
 200         },
 201         {
 202             'url': 'https://vk.com/video-93049196_456239755?list=ln-cBjJ7S4jYYx3ADnmDT',
 203             'info_dict': {
 204                 'id': '-93049196_456239755',
 205                 'ext': 'mp4',
 206                 'title': '8 серия (озвучка)',
 207                 'duration': 8383,
 208                 'comment_count': int,
 209                 'uploader': 'Dizi2021',
 210                 'like_count': int,
 211                 'timestamp': 1640162189,
 212                 'upload_date': '20211222',
 213                 'uploader_id': '-93049196',
 214                 'thumbnail': r're:https?://.+\.jpg$',
 215             },
 216         },
 217         {
 218             # video (removed?) only available with list id
 219             'url': 'https://vk.com/video30481095_171201961?list=8764ae2d21f14088d4',
 220             'md5': '091287af5402239a1051c37ec7b92913',
 221             'info_dict': {
 222                 'id': '30481095_171201961',
 223                 'ext': 'mp4',
 224                 'title': 'ТюменцевВВ_09.07.2015',
 225                 'uploader': 'Anton Ivanov',
 226                 'duration': 109,
 227                 'upload_date': '20150709',
 228                 'view_count': int,
 229             },
 230             'skip': 'Removed',
 231         },
 232         {
 233             # youtube embed
 234             'url': 'https://vk.com/video276849682_170681728',
 235             'info_dict': {
 236                 'id': 'V3K4mi0SYkc',
 237                 'ext': 'mp4',
 238                 'title': "DSWD Awards 'Children's Joy Foundation, Inc.' Certificate of Registration and License to Operate",
 239                 'description': 'md5:bf9c26cfa4acdfb146362682edd3827a',
 240                 'duration': 178,
 241                 'upload_date': '20130117',
 242                 'uploader': "Children's Joy Foundation Inc.",
 243                 'uploader_id': 'thecjf',
 244                 'view_count': int,
 245                 'channel_id': 'UCgzCNQ11TmR9V97ECnhi3gw',
 246                 'availability': 'public',
 247                 'like_count': int,
 248                 'live_status': 'not_live',
 249                 'playable_in_embed': True,
 250                 'channel': 'Children\'s Joy Foundation Inc.',
 251                 'uploader_url': 'http://www.youtube.com/user/thecjf',
 252                 'thumbnail': r're:https?://.+\.jpg$',
 253                 'tags': 'count:27',
 254                 'start_time': 0.0,
 255                 'categories': ['Nonprofits & Activism'],
 256                 'channel_url': 'https://www.youtube.com/channel/UCgzCNQ11TmR9V97ECnhi3gw',
 257                 'age_limit': 0,
 258             },
 259         },
 260         {
 261             # dailymotion embed
 262             'url': 'https://vk.com/video-37468416_456239855',
 263             'info_dict': {
 264                 'id': 'k3lz2cmXyRuJQSjGHUv',
 265                 'ext': 'mp4',
 266                 'title': 'md5:d52606645c20b0ddbb21655adaa4f56f',
 267                 'description': 'md5:424b8e88cc873217f520e582ba28bb36',
 268                 'uploader': 'AniLibria.Tv',
 269                 'upload_date': '20160914',
 270                 'uploader_id': 'x1p5vl5',
 271                 'timestamp': 1473877246,
 272             },
 273             'skip': 'Removed'
 274         },
 275         {
 276             # video key is extra_data not url\d+
 277             'url': 'http://vk.com/video-110305615_171782105',
 278             'md5': 'e13fcda136f99764872e739d13fac1d1',
 279             'info_dict': {
 280                 'id': '-110305615_171782105',
 281                 'ext': 'mp4',
 282                 'title': 'S-Dance, репетиции к The way show',
 283                 'uploader': 'THE WAY SHOW | 17 апреля',
 284                 'uploader_id': '-110305615',
 285                 'timestamp': 1454859345,
 286                 'upload_date': '20160207',
 287             },
 288             'skip': 'Removed',
 289         },
 290         {
 291             # finished live stream, postlive_mp4
 292             'url': 'https://vk.com/videos-387766?z=video-387766_456242764%2Fpl_-387766_-2',
 293             'info_dict': {
 294                 'id': '-387766_456242764',
 295                 'ext': 'mp4',
 296                 'title': 'ИгроМир 2016 День 1 — Игромания Утром',
 297                 'uploader': 'Игромания',
 298                 'duration': 5239,
 299                 'upload_date': '20160929',
 300                 'uploader_id': '-387766',
 301                 'timestamp': 1475137527,
 302                 'thumbnail': r're:https?://.+\.jpg$',
 303                 'comment_count': int,
 304                 'like_count': int,
 305             },
 306             'params': {
 307                 'skip_download': True,
 308             },
 309         },
 310         {
 311             # live stream, hls and rtmp links, most likely already finished live
 312             # stream by the time you are reading this comment
 313             'url': 'https://vk.com/video-140332_456239111',
 314             'only_matching': True,
 315         },
 316         {
 317             # removed video, just testing that we match the pattern
 318             'url': 'http://vk.com/feed?z=video-43215063_166094326%2Fbb50cacd3177146d7a',
 319             'only_matching': True,
 320         },
 321         {
 322             # age restricted video, requires vk account credentials
 323             'url': 'https://vk.com/video205387401_164765225',
 324             'only_matching': True,
 325         },
 326         {
 327             # pladform embed
 328             'url': 'https://vk.com/video-76116461_171554880',
 329             'only_matching': True,
 330         },
 331         {
 332             'url': 'http://new.vk.com/video205387401_165548505',
 333             'only_matching': True,
 334         },
 335         {
 336             # This video is no longer available, because its author has been blocked.
 337             'url': 'https://vk.com/video-10639516_456240611',
 338             'only_matching': True,
 339         },
 340         {
 341             # The video is not available in your region.
 342             'url': 'https://vk.com/video-51812607_171445436',
 343             'only_matching': True,
 344         },
 345         {
 346             'url': 'https://vk.com/clip30014565_456240946',
 347             'only_matching': True,
 348         }]
 349
 350     def _real_extract(self, url):
 351         mobj = self._match_valid_url(url)
 352         video_id = mobj.group('videoid')
 353
 354         mv_data = {}
 355         if video_id:
 356             data = {
 357                 'act': 'show',
 358                 'video': video_id,
 359             }
 360             # Some videos (removed?) can only be downloaded with list id specified
 361             list_id = mobj.group('list_id')
 362             if list_id:
 363                 data['list'] = list_id
 364
 365             payload = self._download_payload('al_video', video_id, data)
 366             info_page = payload[1]
 367             opts = payload[-1]
 368             mv_data = opts.get('mvData') or {}
 369             player = opts.get('player') or {}
 370         else:
 371             video_id = '%s_%s' % (mobj.group('oid'), mobj.group('id'))
 372
 373             info_page = self._download_webpage(
 374                 'http://vk.com/video_ext.php?' + mobj.group('embed_query'), video_id)
 375
 376             error_message = self._html_search_regex(
 377                 [r'(?s)<!><div[^>]+class="video_layer_message"[^>]*>(.+?)</div>',
 378                     r'(?s)<div[^>]+id="video_ext_msg"[^>]*>(.+?)</div>'],
 379                 info_page, 'error message', default=None)
 380             if error_message:
 381                 raise ExtractorError(error_message, expected=True)
 382
 383             if re.search(r'<!>/login\.php\?.*\bact=security_check', info_page):
 384                 raise ExtractorError(
 385                     'You are trying to log in from an unusual location. You should confirm ownership at vk.com to log in with this IP.',
 386                     expected=True)
 387
 388             ERROR_COPYRIGHT = 'Video %s has been removed from public access due to rightholder complaint.'
 389
 390             ERRORS = {
 391                 r'>Видеозапись .*? была изъята из публичного доступа в связи с обращением правообладателя.<':
 392                 ERROR_COPYRIGHT,
 393
 394                 r'>The video .*? was removed from public access by request of the copyright holder.<':
 395                 ERROR_COPYRIGHT,
 396
 397                 r'<!>Please log in or <':
 398                 'Video %s is only available for registered users, '
 399                 'use --username and --password options to provide account credentials.',
 400
 401                 r'<!>Unknown error':
 402                 'Video %s does not exist.',
 403
 404                 r'<!>Видео временно недоступно':
 405                 'Video %s is temporarily unavailable.',
 406
 407                 r'<!>Access denied':
 408                 'Access denied to video %s.',
 409
 410                 r'<!>Видеозапись недоступна, так как её автор был заблокирован.':
 411                 'Video %s is no longer available, because its author has been blocked.',
 412
 413                 r'<!>This video is no longer available, because its author has been blocked.':
 414                 'Video %s is no longer available, because its author has been blocked.',
 415
 416                 r'<!>This video is no longer available, because it has been deleted.':
 417                 'Video %s is no longer available, because it has been deleted.',
 418
 419                 r'<!>The video .+? is not available in your region.':
 420                 'Video %s is not available in your region.',
 421             }
 422
 423             for error_re, error_msg in ERRORS.items():
 424                 if re.search(error_re, info_page):
 425                     raise ExtractorError(error_msg % video_id, expected=True)
 426
 427             player = self._parse_json(self._search_regex(
 428                 r'var\s+playerParams\s*=\s*({.+?})\s*;\s*\n',
 429                 info_page, 'player params'), video_id)
 430
 431         youtube_url = YoutubeIE._extract_url(info_page)
 432         if youtube_url:
 433             return self.url_result(youtube_url, YoutubeIE.ie_key())
 434
 435         vimeo_url = VimeoIE._extract_url(url, info_page)
 436         if vimeo_url is not None:
 437             return self.url_result(vimeo_url, VimeoIE.ie_key())
 438
 439         pladform_url = PladformIE._extract_url(info_page)
 440         if pladform_url:
 441             return self.url_result(pladform_url, PladformIE.ie_key())
 442
 443         m_rutube = re.search(
 444             r'\ssrc="((?:https?:)?//rutube\.ru\\?/(?:video|play)\\?/embed(?:.*?))\\?"', info_page)
 445         if m_rutube is not None:
 446             rutube_url = self._proto_relative_url(
 447                 m_rutube.group(1).replace('\\', ''))
 448             return self.url_result(rutube_url)
 449
 450         dailymotion_urls = DailymotionIE._extract_embed_urls(url, info_page)
 451         if dailymotion_urls:
 452             return self.url_result(dailymotion_urls[0], DailymotionIE.ie_key())
 453
 454         odnoklassniki_url = OdnoklassnikiIE._extract_url(info_page)
 455         if odnoklassniki_url:
 456             return self.url_result(odnoklassniki_url, OdnoklassnikiIE.ie_key())
 457
 458         sibnet_urls = self._extract_embed_urls(url, info_page)
 459         if sibnet_urls:
 460             return self.url_result(sibnet_urls[0])
 461
 462         m_opts = re.search(r'(?s)var\s+opts\s*=\s*({.+?});', info_page)
 463         if m_opts:
 464             m_opts_url = re.search(r"url\s*:\s*'((?!/\b)[^']+)", m_opts.group(1))
 465             if m_opts_url:
 466                 opts_url = m_opts_url.group(1)
 467                 if opts_url.startswith('//'):
 468                     opts_url = 'http:' + opts_url
 469                 return self.url_result(opts_url)
 470
 471         data = player['params'][0]
 472         title = unescapeHTML(data['md_title'])
 473
 474         # 2 = live
 475         # 3 = post live (finished live)
 476         is_live = data.get('live') == 2
 477
 478         timestamp = unified_timestamp(self._html_search_regex(
 479             r'class=["\']mv_info_date[^>]+>([^<]+)(?:<|from)', info_page,
 480             'upload date', default=None)) or int_or_none(data.get('date'))
 481
 482         view_count = str_to_int(self._search_regex(
 483             r'class=["\']mv_views_count[^>]+>\s*([\d,.]+)',
 484             info_page, 'view count', default=None))
 485
 486         formats = []
 487         for format_id, format_url in data.items():
 488             format_url = url_or_none(format_url)
 489             if not format_url or not format_url.startswith(('http', '//', 'rtmp')):
 490                 continue
 491             if (format_id.startswith(('url', 'cache'))
 492                     or format_id in ('extra_data', 'live_mp4', 'postlive_mp4')):
 493                 height = int_or_none(self._search_regex(
 494                     r'^(?:url|cache)(\d+)', format_id, 'height', default=None))
 495                 formats.append({
 496                     'format_id': format_id,
 497                     'url': format_url,
 498                     'height': height,
 499                 })
 500             elif format_id == 'hls':
 501                 formats.extend(self._extract_m3u8_formats(
 502                     format_url, video_id, 'mp4', 'm3u8_native',
 503                     m3u8_id=format_id, fatal=False, live=is_live))
 504             elif format_id == 'rtmp':
 505                 formats.append({
 506                     'format_id': format_id,
 507                     'url': format_url,
 508                     'ext': 'flv',
 509                 })
 510         self._sort_formats(formats)
 511
 512         subtitles = {}
 513         for sub in data.get('subs') or {}:
 514             subtitles.setdefault(sub.get('lang', 'en'), []).append({
 515                 'ext': sub.get('title', '.srt').split('.')[-1],
 516                 'url': url_or_none(sub.get('url')),
 517             })
 518
 519         return {
 520             'id': video_id,
 521             'formats': formats,
 522             'title': title,
 523             'thumbnail': data.get('jpg'),
 524             'uploader': data.get('md_author'),
 525             'uploader_id': str_or_none(data.get('author_id') or mv_data.get('authorId')),
 526             'duration': int_or_none(data.get('duration') or mv_data.get('duration')),
 527             'timestamp': timestamp,
 528             'view_count': view_count,
 529             'like_count': int_or_none(mv_data.get('likes')),
 530             'comment_count': int_or_none(mv_data.get('commcount')),
 531             'is_live': is_live,
 532             'subtitles': subtitles,
 533         }
 534
 535
 536 class VKUserVideosIE(VKBaseIE):
 537     IE_NAME = 'vk:uservideos'
 538     IE_DESC = "VK - User's Videos"
 539     _VALID_URL = r'https?://(?:(?:m|new)\.)?vk\.com/video/@(?P<id>[^?$#/&]+)(?!\?.*\bz=video)(?:[/?#&](?:.*?\bsection=(?P<section>\w+))?|$)'
 540     _TEMPLATE_URL = 'https://vk.com/videos'
 541     _TESTS = [{
 542         'url': 'https://vk.com/video/@mobidevices',
 543         'info_dict': {
 544             'id': '-17892518_all',
 545         },
 546         'playlist_mincount': 1355,
 547     }, {
 548         'url': 'https://vk.com/video/@mobidevices?section=uploaded',
 549         'info_dict': {
 550             'id': '-17892518_uploaded',
 551         },
 552         'playlist_mincount': 182,
 553     }]
 554     _VIDEO = collections.namedtuple('Video', ['owner_id', 'id'])
 555
 556     def _entries(self, page_id, section):
 557         video_list_json = self._download_payload('al_video', page_id, {
 558             'act': 'load_videos_silent',
 559             'offset': 0,
 560             'oid': page_id,
 561             'section': section,
 562         })[0][section]
 563         count = video_list_json['count']
 564         total = video_list_json['total']
 565         video_list = video_list_json['list']
 566
 567         while True:
 568             for video in video_list:
 569                 v = self._VIDEO._make(video[:2])
 570                 video_id = '%d_%d' % (v.owner_id, v.id)
 571                 yield self.url_result(
 572                     'http://vk.com/video' + video_id, VKIE.ie_key(), video_id)
 573             if count >= total:
 574                 break
 575             video_list_json = self._download_payload('al_video', page_id, {
 576                 'act': 'load_videos_silent',
 577                 'offset': count,
 578                 'oid': page_id,
 579                 'section': section,
 580             })[0][section]
 581             count += video_list_json['count']
 582             video_list = video_list_json['list']
 583
 584     def _real_extract(self, url):
 585         u_id, section = self._match_valid_url(url).groups()
 586         webpage = self._download_webpage(url, u_id)
 587         page_id = self._search_regex(r'data-owner-id\s?=\s?"([^"]+)"', webpage, 'page_id')
 588         if not section:
 589             section = 'all'
 590
 591         return self.playlist_result(self._entries(page_id, section), '%s_%s' % (page_id, section))
 592
 593
 594 class VKWallPostIE(VKBaseIE):
 595     IE_NAME = 'vk:wallpost'
 596     _VALID_URL = r'https?://(?:(?:(?:(?:m|new)\.)?vk\.com/(?:[^?]+\?.*\bw=)?wall(?P<id>-?\d+_\d+)))'
 597     _TESTS = [{
 598         # public page URL, audio playlist
 599         'url': 'https://vk.com/bs.official?w=wall-23538238_35',
 600         'info_dict': {
 601             'id': '-23538238_35',
 602             'title': 'Black Shadow - Wall post -23538238_35',
 603             'description': 'md5:3f84b9c4f9ef499731cf1ced9998cc0c',
 604         },
 605         'playlist': [{
 606             'md5': '5ba93864ec5b85f7ce19a9af4af080f6',
 607             'info_dict': {
 608                 'id': '135220665_111806521',
 609                 'ext': 'mp4',
 610                 'title': 'Black Shadow - Слепое Верование',
 611                 'duration': 370,
 612                 'uploader': 'Black Shadow',
 613                 'artist': 'Black Shadow',
 614                 'track': 'Слепое Верование',
 615             },
 616         }, {
 617             'md5': '4cc7e804579122b17ea95af7834c9233',
 618             'info_dict': {
 619                 'id': '135220665_111802303',
 620                 'ext': 'mp4',
 621                 'title': 'Black Shadow - Война - Негасимое Бездны Пламя!',
 622                 'duration': 423,
 623                 'uploader': 'Black Shadow',
 624                 'artist': 'Black Shadow',
 625                 'track': 'Война - Негасимое Бездны Пламя!',
 626             },
 627         }],
 628         'params': {
 629             'skip_download': True,
 630         },
 631         'skip': 'Requires vk account credentials',
 632     }, {
 633         # single YouTube embed, no leading -
 634         'url': 'https://vk.com/wall85155021_6319',
 635         'info_dict': {
 636             'id': '85155021_6319',
 637             'title': 'Сергей Горбунов - Wall post 85155021_6319',
 638         },
 639         'playlist_count': 1,
 640         'skip': 'Requires vk account credentials',
 641     }, {
 642         # wall page URL
 643         'url': 'https://vk.com/wall-23538238_35',
 644         'only_matching': True,
 645     }, {
 646         # mobile wall page URL
 647         'url': 'https://m.vk.com/wall-23538238_35',
 648         'only_matching': True,
 649     }]
 650     _BASE64_CHARS = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMN0PQRSTUVWXYZO123456789+/='
 651     _AUDIO = collections.namedtuple('Audio', ['id', 'owner_id', 'url', 'title', 'performer', 'duration', 'album_id', 'unk', 'author_link', 'lyrics', 'flags', 'context', 'extra', 'hashes', 'cover_url', 'ads'])
 652
 653     def _decode(self, enc):
 654         dec = ''
 655         e = n = 0
 656         for c in enc:
 657             r = self._BASE64_CHARS.index(c)
 658             cond = n % 4
 659             e = 64 * e + r if cond else r
 660             n += 1
 661             if cond:
 662                 dec += chr(255 & e >> (-2 * n & 6))
 663         return dec
 664
 665     def _unmask_url(self, mask_url, vk_id):
 666         if 'audio_api_unavailable' in mask_url:
 667             extra = mask_url.split('?extra=')[1].split('#')
 668             func, base = self._decode(extra[1]).split(chr(11))
 669             mask_url = list(self._decode(extra[0]))
 670             url_len = len(mask_url)
 671             indexes = [None] * url_len
 672             index = int(base) ^ vk_id
 673             for n in range(url_len - 1, -1, -1):
 674                 index = (url_len * (n + 1) ^ index + n) % url_len
 675                 indexes[n] = index
 676             for n in range(1, url_len):
 677                 c = mask_url[n]
 678                 index = indexes[url_len - 1 - n]
 679                 mask_url[n] = mask_url[index]
 680                 mask_url[index] = c
 681             mask_url = ''.join(mask_url)
 682         return mask_url
 683
 684     def _real_extract(self, url):
 685         post_id = self._match_id(url)
 686
 687         webpage = self._download_payload('wkview', post_id, {
 688             'act': 'show',
 689             'w': 'wall' + post_id,
 690         })[1]
 691
 692         description = clean_html(get_element_by_class('wall_post_text', webpage))
 693         uploader = clean_html(get_element_by_class('author', webpage))
 694
 695         entries = []
 696
 697         for audio in re.findall(r'data-audio="([^"]+)', webpage):
 698             audio = self._parse_json(unescapeHTML(audio), post_id)
 699             a = self._AUDIO._make(audio[:16])
 700             if not a.url:
 701                 continue
 702             title = unescapeHTML(a.title)
 703             performer = unescapeHTML(a.performer)
 704             entries.append({
 705                 'id': '%s_%s' % (a.owner_id, a.id),
 706                 'url': self._unmask_url(a.url, a.ads['vk_id']),
 707                 'title': '%s - %s' % (performer, title) if performer else title,
 708                 'thumbnails': [{'url': c_url} for c_url in a.cover_url.split(',')] if a.cover_url else None,
 709                 'duration': int_or_none(a.duration),
 710                 'uploader': uploader,
 711                 'artist': performer,
 712                 'track': title,
 713                 'ext': 'mp4',
 714                 'protocol': 'm3u8_native',
 715             })
 716
 717         for video in re.finditer(
 718                 r'<a[^>]+href=(["\'])(?P<url>/video(?:-?[\d_]+).*?)\1', webpage):
 719             entries.append(self.url_result(
 720                 compat_urlparse.urljoin(url, video.group('url')), VKIE.ie_key()))
 721
 722         title = 'Wall post %s' % post_id
 723
 724         return self.playlist_result(
 725             orderedSet(entries), post_id,
 726             '%s - %s' % (uploader, title) if uploader else title,
 727             description)