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