Raphaël G. Git Repositories - youtubedl/blob - youtube_dl/extractor/kaltura.py

   1 # coding: utf-8
   2 from __future__ import unicode_literals
   3
   4 import re
   5 import base64
   6
   7 from .common import InfoExtractor
   8 from ..compat import (
   9     compat_urlparse,
  10     compat_parse_qs,
  11 )
  12 from ..utils import (
  13     clean_html,
  14     ExtractorError,
  15     int_or_none,
  16     unsmuggle_url,
  17     smuggle_url,
  18 )
  19
  20
  21 class KalturaIE(InfoExtractor):
  22     _VALID_URL = r'''(?x)
  23                 (?:
  24                     kaltura:(?P<partner_id>\d+):(?P<id>[0-9a-z_]+)|
  25                     https?://
  26                         (:?(?:www|cdnapi(?:sec)?)\.)?kaltura\.com(?::\d+)?/
  27                         (?:
  28                             (?:
  29                                 # flash player
  30                                 index\.php/(?:kwidget|extwidget/preview)|
  31                                 # html5 player
  32                                 html5/html5lib/[^/]+/mwEmbedFrame\.php
  33                             )
  34                         )(?:/(?P<path>[^?]+))?(?:\?(?P<query>.*))?
  35                 )
  36                 '''
  37     _SERVICE_URL = 'http://cdnapi.kaltura.com'
  38     _SERVICE_BASE = '/api_v3/index.php'
  39     # See https://github.com/kaltura/server/blob/master/plugins/content/caption/base/lib/model/enums/CaptionType.php
  40     _CAPTION_TYPES = {
  41         1: 'srt',
  42         2: 'ttml',
  43         3: 'vtt',
  44     }
  45     _TESTS = [
  46         {
  47             'url': 'kaltura:269692:1_1jc2y3e4',
  48             'md5': '3adcbdb3dcc02d647539e53f284ba171',
  49             'info_dict': {
  50                 'id': '1_1jc2y3e4',
  51                 'ext': 'mp4',
  52                 'title': 'Straight from the Heart',
  53                 'upload_date': '20131219',
  54                 'uploader_id': 'mlundberg@wolfgangsvault.com',
  55                 'description': 'The Allman Brothers Band, 12/16/1981',
  56                 'thumbnail': 're:^https?://.*/thumbnail/.*',
  57                 'timestamp': int,
  58             },
  59         },
  60         {
  61             'url': 'http://www.kaltura.com/index.php/kwidget/cache_st/1300318621/wid/_269692/uiconf_id/3873291/entry_id/1_1jc2y3e4',
  62             'only_matching': True,
  63         },
  64         {
  65             'url': 'https://cdnapisec.kaltura.com/index.php/kwidget/wid/_557781/uiconf_id/22845202/entry_id/1_plr1syf3',
  66             'only_matching': True,
  67         },
  68         {
  69             'url': 'https://cdnapisec.kaltura.com/html5/html5lib/v2.30.2/mwEmbedFrame.php/p/1337/uiconf_id/20540612/entry_id/1_sf5ovm7u?wid=_243342',
  70             'only_matching': True,
  71         },
  72         {
  73             # video with subtitles
  74             'url': 'kaltura:111032:1_cw786r8q',
  75             'only_matching': True,
  76         },
  77         {
  78             # video with ttml subtitles (no fileExt)
  79             'url': 'kaltura:1926081:0_l5ye1133',
  80             'info_dict': {
  81                 'id': '0_l5ye1133',
  82                 'ext': 'mp4',
  83                 'title': 'What Can You Do With Python?',
  84                 'upload_date': '20160221',
  85                 'uploader_id': 'stork',
  86                 'thumbnail': 're:^https?://.*/thumbnail/.*',
  87                 'timestamp': int,
  88                 'subtitles': {
  89                     'en': [{
  90                         'ext': 'ttml',
  91                     }],
  92                 },
  93             },
  94             'skip': 'Gone. Maybe https://www.safaribooksonline.com/library/tutorials/introduction-to-python-anon/3469/',
  95             'params': {
  96                 'skip_download': True,
  97             },
  98         },
  99         {
 100             'url': 'https://www.kaltura.com/index.php/extwidget/preview/partner_id/1770401/uiconf_id/37307382/entry_id/0_58u8kme7/embed/iframe?&flashvars[streamerType]=auto',
 101             'only_matching': True,
 102         },
 103         {
 104             'url': 'https://www.kaltura.com:443/index.php/extwidget/preview/partner_id/1770401/uiconf_id/37307382/entry_id/0_58u8kme7/embed/iframe?&flashvars[streamerType]=auto',
 105             'only_matching': True,
 106         }
 107     ]
 108
 109     @staticmethod
 110     def _extract_url(webpage):
 111         # Embed codes: https://knowledge.kaltura.com/embedding-kaltura-media-players-your-site
 112         mobj = (
 113             re.search(
 114                 r"""(?xs)
 115                     kWidget\.(?:thumb)?[Ee]mbed\(
 116                     \{.*?
 117                         (?P<q1>['"])wid(?P=q1)\s*:\s*
 118                         (?P<q2>['"])_?(?P<partner_id>(?:(?!(?P=q2)).)+)(?P=q2),.*?
 119                         (?P<q3>['"])entry_?[Ii]d(?P=q3)\s*:\s*
 120                         (?P<q4>['"])(?P<id>(?:(?!(?P=q4)).)+)(?P=q4)(?:,|\s*\})
 121                 """, webpage) or
 122             re.search(
 123                 r'''(?xs)
 124                     (?P<q1>["'])
 125                         (?:https?:)?//cdnapi(?:sec)?\.kaltura\.com(?::\d+)?/(?:(?!(?P=q1)).)*\b(?:p|partner_id)/(?P<partner_id>\d+)(?:(?!(?P=q1)).)*
 126                     (?P=q1).*?
 127                     (?:
 128                         (?:
 129                             entry_?[Ii]d|
 130                             (?P<q2>["'])entry_?[Ii]d(?P=q2)
 131                         )\s*:\s*|
 132                         \[\s*(?P<q2_1>["'])entry_?[Ii]d(?P=q2_1)\s*\]\s*=\s*
 133                     )
 134                     (?P<q3>["'])(?P<id>(?:(?!(?P=q3)).)+)(?P=q3)
 135                 ''', webpage) or
 136             re.search(
 137                 r'''(?xs)
 138                     <iframe[^>]+src=(?P<q1>["'])
 139                       (?:https?:)?//(?:www\.)?kaltura\.com/(?:(?!(?P=q1)).)*\b(?:p|partner_id)/(?P<partner_id>\d+)
 140                       (?:(?!(?P=q1)).)*
 141                       [?&]entry_id=(?P<id>(?:(?!(?P=q1))[^&])+)
 142                     (?P=q1)
 143                 ''', webpage)
 144         )
 145         if mobj:
 146             embed_info = mobj.groupdict()
 147             url = 'kaltura:%(partner_id)s:%(id)s' % embed_info
 148             escaped_pid = re.escape(embed_info['partner_id'])
 149             service_url = re.search(
 150                 r'<script[^>]+src=["\']((?:https?:)?//.+?)/p/%s/sp/%s00/embedIframeJs' % (escaped_pid, escaped_pid),
 151                 webpage)
 152             if service_url:
 153                 url = smuggle_url(url, {'service_url': service_url.group(1)})
 154             return url
 155
 156     def _kaltura_api_call(self, video_id, actions, service_url=None, *args, **kwargs):
 157         params = actions[0]
 158         if len(actions) > 1:
 159             for i, a in enumerate(actions[1:], start=1):
 160                 for k, v in a.items():
 161                     params['%d:%s' % (i, k)] = v
 162
 163         data = self._download_json(
 164             (service_url or self._SERVICE_URL) + self._SERVICE_BASE,
 165             video_id, query=params, *args, **kwargs)
 166
 167         status = data if len(actions) == 1 else data[0]
 168         if status.get('objectType') == 'KalturaAPIException':
 169             raise ExtractorError(
 170                 '%s said: %s' % (self.IE_NAME, status['message']))
 171
 172         return data
 173
 174     def _get_video_info(self, video_id, partner_id, service_url=None):
 175         actions = [
 176             {
 177                 'action': 'null',
 178                 'apiVersion': '3.1.5',
 179                 'clientTag': 'kdp:v3.8.5',
 180                 'format': 1,  # JSON, 2 = XML, 3 = PHP
 181                 'service': 'multirequest',
 182             },
 183             {
 184                 'expiry': 86400,
 185                 'service': 'session',
 186                 'action': 'startWidgetSession',
 187                 'widgetId': '_%s' % partner_id,
 188             },
 189             {
 190                 'action': 'get',
 191                 'entryId': video_id,
 192                 'service': 'baseentry',
 193                 'ks': '{1:result:ks}',
 194             },
 195             {
 196                 'action': 'getbyentryid',
 197                 'entryId': video_id,
 198                 'service': 'flavorAsset',
 199                 'ks': '{1:result:ks}',
 200             },
 201             {
 202                 'action': 'list',
 203                 'filter:entryIdEqual': video_id,
 204                 'service': 'caption_captionasset',
 205                 'ks': '{1:result:ks}',
 206             },
 207         ]
 208         return self._kaltura_api_call(
 209             video_id, actions, service_url, note='Downloading video info JSON')
 210
 211     def _real_extract(self, url):
 212         url, smuggled_data = unsmuggle_url(url, {})
 213
 214         mobj = re.match(self._VALID_URL, url)
 215         partner_id, entry_id = mobj.group('partner_id', 'id')
 216         ks = None
 217         captions = None
 218         if partner_id and entry_id:
 219             _, info, flavor_assets, captions = self._get_video_info(entry_id, partner_id, smuggled_data.get('service_url'))
 220         else:
 221             path, query = mobj.group('path', 'query')
 222             if not path and not query:
 223                 raise ExtractorError('Invalid URL', expected=True)
 224             params = {}
 225             if query:
 226                 params = compat_parse_qs(query)
 227             if path:
 228                 splitted_path = path.split('/')
 229                 params.update(dict((zip(splitted_path[::2], [[v] for v in splitted_path[1::2]]))))
 230             if 'wid' in params:
 231                 partner_id = params['wid'][0][1:]
 232             elif 'p' in params:
 233                 partner_id = params['p'][0]
 234             elif 'partner_id' in params:
 235                 partner_id = params['partner_id'][0]
 236             else:
 237                 raise ExtractorError('Invalid URL', expected=True)
 238             if 'entry_id' in params:
 239                 entry_id = params['entry_id'][0]
 240                 _, info, flavor_assets, captions = self._get_video_info(entry_id, partner_id)
 241             elif 'uiconf_id' in params and 'flashvars[referenceId]' in params:
 242                 reference_id = params['flashvars[referenceId]'][0]
 243                 webpage = self._download_webpage(url, reference_id)
 244                 entry_data = self._parse_json(self._search_regex(
 245                     r'window\.kalturaIframePackageData\s*=\s*({.*});',
 246                     webpage, 'kalturaIframePackageData'),
 247                     reference_id)['entryResult']
 248                 info, flavor_assets = entry_data['meta'], entry_data['contextData']['flavorAssets']
 249                 entry_id = info['id']
 250                 # Unfortunately, data returned in kalturaIframePackageData lacks
 251                 # captions so we will try requesting the complete data using
 252                 # regular approach since we now know the entry_id
 253                 try:
 254                     _, info, flavor_assets, captions = self._get_video_info(
 255                         entry_id, partner_id)
 256                 except ExtractorError:
 257                     # Regular scenario failed but we already have everything
 258                     # extracted apart from captions and can process at least
 259                     # with this
 260                     pass
 261             else:
 262                 raise ExtractorError('Invalid URL', expected=True)
 263             ks = params.get('flashvars[ks]', [None])[0]
 264
 265         source_url = smuggled_data.get('source_url')
 266         if source_url:
 267             referrer = base64.b64encode(
 268                 '://'.join(compat_urlparse.urlparse(source_url)[:2])
 269                 .encode('utf-8')).decode('utf-8')
 270         else:
 271             referrer = None
 272
 273         def sign_url(unsigned_url):
 274             if ks:
 275                 unsigned_url += '/ks/%s' % ks
 276             if referrer:
 277                 unsigned_url += '?referrer=%s' % referrer
 278             return unsigned_url
 279
 280         data_url = info['dataUrl']
 281         if '/flvclipper/' in data_url:
 282             data_url = re.sub(r'/flvclipper/.*', '/serveFlavor', data_url)
 283
 284         formats = []
 285         for f in flavor_assets:
 286             # Continue if asset is not ready
 287             if f.get('status') != 2:
 288                 continue
 289             # Original format that's not available (e.g. kaltura:1926081:0_c03e1b5g)
 290             # skip for now.
 291             if f.get('fileExt') == 'chun':
 292                 continue
 293             # DRM-protected video, cannot be decrypted
 294             if f.get('fileExt') == 'wvm':
 295                 continue
 296             if not f.get('fileExt'):
 297                 # QT indicates QuickTime; some videos have broken fileExt
 298                 if f.get('containerFormat') == 'qt':
 299                     f['fileExt'] = 'mov'
 300                 else:
 301                     f['fileExt'] = 'mp4'
 302             video_url = sign_url(
 303                 '%s/flavorId/%s' % (data_url, f['id']))
 304             # audio-only has no videoCodecId (e.g. kaltura:1926081:0_c03e1b5g
 305             # -f mp4-56)
 306             vcodec = 'none' if 'videoCodecId' not in f and f.get(
 307                 'frameRate') == 0 else f.get('videoCodecId')
 308             formats.append({
 309                 'format_id': '%(fileExt)s-%(bitrate)s' % f,
 310                 'ext': f.get('fileExt'),
 311                 'tbr': int_or_none(f['bitrate']),
 312                 'fps': int_or_none(f.get('frameRate')),
 313                 'filesize_approx': int_or_none(f.get('size'), invscale=1024),
 314                 'container': f.get('containerFormat'),
 315                 'vcodec': vcodec,
 316                 'height': int_or_none(f.get('height')),
 317                 'width': int_or_none(f.get('width')),
 318                 'url': video_url,
 319             })
 320         if '/playManifest/' in data_url:
 321             m3u8_url = sign_url(data_url.replace(
 322                 'format/url', 'format/applehttp'))
 323             formats.extend(self._extract_m3u8_formats(
 324                 m3u8_url, entry_id, 'mp4', 'm3u8_native',
 325                 m3u8_id='hls', fatal=False))
 326
 327         self._sort_formats(formats)
 328
 329         subtitles = {}
 330         if captions:
 331             for caption in captions.get('objects', []):
 332                 # Continue if caption is not ready
 333                 if caption.get('status') != 2:
 334                     continue
 335                 if not caption.get('id'):
 336                     continue
 337                 caption_format = int_or_none(caption.get('format'))
 338                 subtitles.setdefault(caption.get('languageCode') or caption.get('language'), []).append({
 339                     'url': '%s/api_v3/service/caption_captionasset/action/serve/captionAssetId/%s' % (self._SERVICE_URL, caption['id']),
 340                     'ext': caption.get('fileExt') or self._CAPTION_TYPES.get(caption_format) or 'ttml',
 341                 })
 342
 343         return {
 344             'id': entry_id,
 345             'title': info['name'],
 346             'formats': formats,
 347             'subtitles': subtitles,
 348             'description': clean_html(info.get('description')),
 349             'thumbnail': info.get('thumbnailUrl'),
 350             'duration': info.get('duration'),
 351             'timestamp': info.get('createdAt'),
 352             'uploader_id': info.get('userId') if info.get('userId') != 'None' else None,
 353             'view_count': info.get('plays'),
 354         }