_ Git - youtube-dl/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/
  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             'params': {
  95                 'skip_download': True,
  96             },
  97         },
  98         {
  99             'url': 'https://www.kaltura.com/index.php/extwidget/preview/partner_id/1770401/uiconf_id/37307382/entry_id/0_58u8kme7/embed/iframe?&flashvars[streamerType]=auto',
 100             'only_matching': True,
 101         }
 102     ]
 103
 104     @staticmethod
 105     def _extract_url(webpage):
 106         mobj = (
 107             re.search(
 108                 r"""(?xs)
 109                     kWidget\.(?:thumb)?[Ee]mbed\(
 110                     \{.*?
 111                         (?P<q1>['\"])wid(?P=q1)\s*:\s*
 112                         (?P<q2>['\"])_?(?P<partner_id>(?:(?!(?P=q2)).)+)(?P=q2),.*?
 113                         (?P<q3>['\"])entry_?[Ii]d(?P=q3)\s*:\s*
 114                         (?P<q4>['\"])(?P<id>(?:(?!(?P=q4)).)+)(?P=q4)(?:,|\s*\})
 115                 """, webpage) or
 116             re.search(
 117                 r'''(?xs)
 118                     (?P<q1>["\'])
 119                         (?:https?:)?//cdnapi(?:sec)?\.kaltura\.com(?:(?!(?P=q1)).)*/(?:p|partner_id)/(?P<partner_id>\d+)(?:(?!(?P=q1)).)*
 120                     (?P=q1).*?
 121                     (?:
 122                         entry_?[Ii]d|
 123                         (?P<q2>["\'])entry_?[Ii]d(?P=q2)
 124                     )\s*:\s*
 125                     (?P<q3>["\'])(?P<id>(?:(?!(?P=q3)).)+)(?P=q3)
 126                 ''', webpage))
 127         if mobj:
 128             embed_info = mobj.groupdict()
 129             url = 'kaltura:%(partner_id)s:%(id)s' % embed_info
 130             escaped_pid = re.escape(embed_info['partner_id'])
 131             service_url = re.search(
 132                 r'<script[^>]+src=["\']((?:https?:)?//.+?)/p/%s/sp/%s00/embedIframeJs' % (escaped_pid, escaped_pid),
 133                 webpage)
 134             if service_url:
 135                 url = smuggle_url(url, {'service_url': service_url.group(1)})
 136             return url
 137
 138     def _kaltura_api_call(self, video_id, actions, service_url=None, *args, **kwargs):
 139         params = actions[0]
 140         if len(actions) > 1:
 141             for i, a in enumerate(actions[1:], start=1):
 142                 for k, v in a.items():
 143                     params['%d:%s' % (i, k)] = v
 144
 145         data = self._download_json(
 146             (service_url or self._SERVICE_URL) + self._SERVICE_BASE,
 147             video_id, query=params, *args, **kwargs)
 148
 149         status = data if len(actions) == 1 else data[0]
 150         if status.get('objectType') == 'KalturaAPIException':
 151             raise ExtractorError(
 152                 '%s said: %s' % (self.IE_NAME, status['message']))
 153
 154         return data
 155
 156     def _get_video_info(self, video_id, partner_id, service_url=None):
 157         actions = [
 158             {
 159                 'action': 'null',
 160                 'apiVersion': '3.1.5',
 161                 'clientTag': 'kdp:v3.8.5',
 162                 'format': 1,  # JSON, 2 = XML, 3 = PHP
 163                 'service': 'multirequest',
 164             },
 165             {
 166                 'expiry': 86400,
 167                 'service': 'session',
 168                 'action': 'startWidgetSession',
 169                 'widgetId': '_%s' % partner_id,
 170             },
 171             {
 172                 'action': 'get',
 173                 'entryId': video_id,
 174                 'service': 'baseentry',
 175                 'ks': '{1:result:ks}',
 176             },
 177             {
 178                 'action': 'getbyentryid',
 179                 'entryId': video_id,
 180                 'service': 'flavorAsset',
 181                 'ks': '{1:result:ks}',
 182             },
 183             {
 184                 'action': 'list',
 185                 'filter:entryIdEqual': video_id,
 186                 'service': 'caption_captionasset',
 187                 'ks': '{1:result:ks}',
 188             },
 189         ]
 190         return self._kaltura_api_call(
 191             video_id, actions, service_url, note='Downloading video info JSON')
 192
 193     def _real_extract(self, url):
 194         url, smuggled_data = unsmuggle_url(url, {})
 195
 196         mobj = re.match(self._VALID_URL, url)
 197         partner_id, entry_id = mobj.group('partner_id', 'id')
 198         ks = None
 199         captions = None
 200         if partner_id and entry_id:
 201             _, info, flavor_assets, captions = self._get_video_info(entry_id, partner_id, smuggled_data.get('service_url'))
 202         else:
 203             path, query = mobj.group('path', 'query')
 204             if not path and not query:
 205                 raise ExtractorError('Invalid URL', expected=True)
 206             params = {}
 207             if query:
 208                 params = compat_parse_qs(query)
 209             if path:
 210                 splitted_path = path.split('/')
 211                 params.update(dict((zip(splitted_path[::2], [[v] for v in splitted_path[1::2]]))))
 212             if 'wid' in params:
 213                 partner_id = params['wid'][0][1:]
 214             elif 'p' in params:
 215                 partner_id = params['p'][0]
 216             elif 'partner_id' in params:
 217                 partner_id = params['partner_id'][0]
 218             else:
 219                 raise ExtractorError('Invalid URL', expected=True)
 220             if 'entry_id' in params:
 221                 entry_id = params['entry_id'][0]
 222                 _, info, flavor_assets, captions = self._get_video_info(entry_id, partner_id)
 223             elif 'uiconf_id' in params and 'flashvars[referenceId]' in params:
 224                 reference_id = params['flashvars[referenceId]'][0]
 225                 webpage = self._download_webpage(url, reference_id)
 226                 entry_data = self._parse_json(self._search_regex(
 227                     r'window\.kalturaIframePackageData\s*=\s*({.*});',
 228                     webpage, 'kalturaIframePackageData'),
 229                     reference_id)['entryResult']
 230                 info, flavor_assets = entry_data['meta'], entry_data['contextData']['flavorAssets']
 231                 entry_id = info['id']
 232                 # Unfortunately, data returned in kalturaIframePackageData lacks
 233                 # captions so we will try requesting the complete data using
 234                 # regular approach since we now know the entry_id
 235                 try:
 236                     _, info, flavor_assets, captions = self._get_video_info(
 237                         entry_id, partner_id)
 238                 except ExtractorError:
 239                     # Regular scenario failed but we already have everything
 240                     # extracted apart from captions and can process at least
 241                     # with this
 242                     pass
 243             else:
 244                 raise ExtractorError('Invalid URL', expected=True)
 245             ks = params.get('flashvars[ks]', [None])[0]
 246
 247         source_url = smuggled_data.get('source_url')
 248         if source_url:
 249             referrer = base64.b64encode(
 250                 '://'.join(compat_urlparse.urlparse(source_url)[:2])
 251                 .encode('utf-8')).decode('utf-8')
 252         else:
 253             referrer = None
 254
 255         def sign_url(unsigned_url):
 256             if ks:
 257                 unsigned_url += '/ks/%s' % ks
 258             if referrer:
 259                 unsigned_url += '?referrer=%s' % referrer
 260             return unsigned_url
 261
 262         data_url = info['dataUrl']
 263         if '/flvclipper/' in data_url:
 264             data_url = re.sub(r'/flvclipper/.*', '/serveFlavor', data_url)
 265
 266         formats = []
 267         for f in flavor_assets:
 268             # Continue if asset is not ready
 269             if f.get('status') != 2:
 270                 continue
 271             # Original format that's not available (e.g. kaltura:1926081:0_c03e1b5g)
 272             # skip for now.
 273             if f.get('fileExt') == 'chun':
 274                 continue
 275             if not f.get('fileExt'):
 276                 # QT indicates QuickTime; some videos have broken fileExt
 277                 if f.get('containerFormat') == 'qt':
 278                     f['fileExt'] = 'mov'
 279                 else:
 280                     f['fileExt'] = 'mp4'
 281             video_url = sign_url(
 282                 '%s/flavorId/%s' % (data_url, f['id']))
 283             # audio-only has no videoCodecId (e.g. kaltura:1926081:0_c03e1b5g
 284             # -f mp4-56)
 285             vcodec = 'none' if 'videoCodecId' not in f and f.get(
 286                 'frameRate') == 0 else f.get('videoCodecId')
 287             formats.append({
 288                 'format_id': '%(fileExt)s-%(bitrate)s' % f,
 289                 'ext': f.get('fileExt'),
 290                 'tbr': int_or_none(f['bitrate']),
 291                 'fps': int_or_none(f.get('frameRate')),
 292                 'filesize_approx': int_or_none(f.get('size'), invscale=1024),
 293                 'container': f.get('containerFormat'),
 294                 'vcodec': vcodec,
 295                 'height': int_or_none(f.get('height')),
 296                 'width': int_or_none(f.get('width')),
 297                 'url': video_url,
 298             })
 299         if '/playManifest/' in data_url:
 300             m3u8_url = sign_url(data_url.replace(
 301                 'format/url', 'format/applehttp'))
 302             formats.extend(self._extract_m3u8_formats(
 303                 m3u8_url, entry_id, 'mp4', 'm3u8_native',
 304                 m3u8_id='hls', fatal=False))
 305
 306         self._sort_formats(formats)
 307
 308         subtitles = {}
 309         if captions:
 310             for caption in captions.get('objects', []):
 311                 # Continue if caption is not ready
 312                 if f.get('status') != 2:
 313                     continue
 314                 if not caption.get('id'):
 315                     continue
 316                 caption_format = int_or_none(caption.get('format'))
 317                 subtitles.setdefault(caption.get('languageCode') or caption.get('language'), []).append({
 318                     'url': '%s/api_v3/service/caption_captionasset/action/serve/captionAssetId/%s' % (self._SERVICE_URL, caption['id']),
 319                     'ext': caption.get('fileExt') or self._CAPTION_TYPES.get(caption_format) or 'ttml',
 320                 })
 321
 322         return {
 323             'id': entry_id,
 324             'title': info['name'],
 325             'formats': formats,
 326             'subtitles': subtitles,
 327             'description': clean_html(info.get('description')),
 328             'thumbnail': info.get('thumbnailUrl'),
 329             'duration': info.get('duration'),
 330             'timestamp': info.get('createdAt'),
 331             'uploader_id': info.get('userId') if info.get('userId') != 'None' else None,
 332             'view_count': info.get('plays'),
 333         }