_ 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_urllib_parse_urlencode,
  10     compat_urlparse,
  11     compat_parse_qs,
  12 )
  13 from ..utils import (
  14     clean_html,
  15     ExtractorError,
  16     int_or_none,
  17     unsmuggle_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|
  31                                 # html5 player
  32                                 html5/html5lib/[^/]+/mwEmbedFrame\.php
  33                             )
  34                         )(?:/(?P<path>[^?]+))?(?:\?(?P<query>.*))?
  35                 )
  36                 '''
  37     _API_BASE = 'http://cdnapi.kaltura.com/api_v3/index.php?'
  38     _TESTS = [
  39         {
  40             'url': 'kaltura:269692:1_1jc2y3e4',
  41             'md5': '3adcbdb3dcc02d647539e53f284ba171',
  42             'info_dict': {
  43                 'id': '1_1jc2y3e4',
  44                 'ext': 'mp4',
  45                 'title': 'Straight from the Heart',
  46                 'upload_date': '20131219',
  47                 'uploader_id': 'mlundberg@wolfgangsvault.com',
  48                 'description': 'The Allman Brothers Band, 12/16/1981',
  49                 'thumbnail': 're:^https?://.*/thumbnail/.*',
  50                 'timestamp': int,
  51             },
  52         },
  53         {
  54             'url': 'http://www.kaltura.com/index.php/kwidget/cache_st/1300318621/wid/_269692/uiconf_id/3873291/entry_id/1_1jc2y3e4',
  55             'only_matching': True,
  56         },
  57         {
  58             'url': 'https://cdnapisec.kaltura.com/index.php/kwidget/wid/_557781/uiconf_id/22845202/entry_id/1_plr1syf3',
  59             'only_matching': True,
  60         },
  61         {
  62             'url': 'https://cdnapisec.kaltura.com/html5/html5lib/v2.30.2/mwEmbedFrame.php/p/1337/uiconf_id/20540612/entry_id/1_sf5ovm7u?wid=_243342',
  63             'only_matching': True,
  64         }
  65     ]
  66
  67     @staticmethod
  68     def _extract_url(webpage):
  69         mobj = (
  70             re.search(
  71                 r"""(?xs)
  72                     kWidget\.(?:thumb)?[Ee]mbed\(
  73                     \{.*?
  74                         (?P<q1>['\"])wid(?P=q1)\s*:\s*
  75                         (?P<q2>['\"])_?(?P<partner_id>[^'\"]+)(?P=q2),.*?
  76                         (?P<q3>['\"])entry_?[Ii]d(?P=q3)\s*:\s*
  77                         (?P<q4>['\"])(?P<id>[^'\"]+)(?P=q4),
  78                 """, webpage) or
  79             re.search(
  80                 r'''(?xs)
  81                     (?P<q1>["\'])
  82                         (?:https?:)?//cdnapi(?:sec)?\.kaltura\.com/.*?(?:p|partner_id)/(?P<partner_id>\d+).*?
  83                     (?P=q1).*?
  84                     (?:
  85                         entry_?[Ii]d|
  86                         (?P<q2>["\'])entry_?[Ii]d(?P=q2)
  87                     )\s*:\s*
  88                     (?P<q3>["\'])(?P<id>.+?)(?P=q3)
  89                 ''', webpage))
  90         if mobj:
  91             return 'kaltura:%(partner_id)s:%(id)s' % mobj.groupdict()
  92
  93     def _kaltura_api_call(self, video_id, actions, *args, **kwargs):
  94         params = actions[0]
  95         if len(actions) > 1:
  96             for i, a in enumerate(actions[1:], start=1):
  97                 for k, v in a.items():
  98                     params['%d:%s' % (i, k)] = v
  99
 100         query = compat_urllib_parse_urlencode(params)
 101         url = self._API_BASE + query
 102         data = self._download_json(url, video_id, *args, **kwargs)
 103
 104         status = data if len(actions) == 1 else data[0]
 105         if status.get('objectType') == 'KalturaAPIException':
 106             raise ExtractorError(
 107                 '%s said: %s' % (self.IE_NAME, status['message']))
 108
 109         return data
 110
 111     def _get_kaltura_signature(self, video_id, partner_id):
 112         actions = [{
 113             'apiVersion': '3.1',
 114             'expiry': 86400,
 115             'format': 1,
 116             'service': 'session',
 117             'action': 'startWidgetSession',
 118             'widgetId': '_%s' % partner_id,
 119         }]
 120         return self._kaltura_api_call(
 121             video_id, actions, note='Downloading Kaltura signature')['ks']
 122
 123     def _get_video_info(self, video_id, partner_id):
 124         signature = self._get_kaltura_signature(video_id, partner_id)
 125         actions = [
 126             {
 127                 'action': 'null',
 128                 'apiVersion': '3.1.5',
 129                 'clientTag': 'kdp:v3.8.5',
 130                 'format': 1,  # JSON, 2 = XML, 3 = PHP
 131                 'service': 'multirequest',
 132                 'ks': signature,
 133             },
 134             {
 135                 'action': 'get',
 136                 'entryId': video_id,
 137                 'service': 'baseentry',
 138                 'version': '-1',
 139             },
 140             {
 141                 'action': 'getbyentryid',
 142                 'entryId': video_id,
 143                 'service': 'flavorAsset',
 144             },
 145         ]
 146         return self._kaltura_api_call(
 147             video_id, actions, note='Downloading video info JSON')
 148
 149     def _real_extract(self, url):
 150         url, smuggled_data = unsmuggle_url(url, {})
 151
 152         mobj = re.match(self._VALID_URL, url)
 153         partner_id, entry_id = mobj.group('partner_id', 'id')
 154         ks = None
 155         if partner_id and entry_id:
 156             info, flavor_assets = self._get_video_info(entry_id, partner_id)
 157         else:
 158             path, query = mobj.group('path', 'query')
 159             if not path and not query:
 160                 raise ExtractorError('Invalid URL', expected=True)
 161             params = {}
 162             if query:
 163                 params = compat_parse_qs(query)
 164             if path:
 165                 splitted_path = path.split('/')
 166                 params.update(dict((zip(splitted_path[::2], [[v] for v in splitted_path[1::2]]))))
 167             if 'wid' in params:
 168                 partner_id = params['wid'][0][1:]
 169             elif 'p' in params:
 170                 partner_id = params['p'][0]
 171             else:
 172                 raise ExtractorError('Invalid URL', expected=True)
 173             if 'entry_id' in params:
 174                 entry_id = params['entry_id'][0]
 175                 info, flavor_assets = self._get_video_info(entry_id, partner_id)
 176             elif 'uiconf_id' in params and 'flashvars[referenceId]' in params:
 177                 reference_id = params['flashvars[referenceId]'][0]
 178                 webpage = self._download_webpage(url, reference_id)
 179                 entry_data = self._parse_json(self._search_regex(
 180                     r'window\.kalturaIframePackageData\s*=\s*({.*});',
 181                     webpage, 'kalturaIframePackageData'),
 182                     reference_id)['entryResult']
 183                 info, flavor_assets = entry_data['meta'], entry_data['contextData']['flavorAssets']
 184                 entry_id = info['id']
 185             else:
 186                 raise ExtractorError('Invalid URL', expected=True)
 187             ks = params.get('flashvars[ks]', [None])[0]
 188
 189         source_url = smuggled_data.get('source_url')
 190         if source_url:
 191             referrer = base64.b64encode(
 192                 '://'.join(compat_urlparse.urlparse(source_url)[:2])
 193                 .encode('utf-8')).decode('utf-8')
 194         else:
 195             referrer = None
 196
 197         def sign_url(unsigned_url):
 198             if ks:
 199                 unsigned_url += '/ks/%s' % ks
 200             if referrer:
 201                 unsigned_url += '?referrer=%s' % referrer
 202             return unsigned_url
 203
 204         formats = []
 205         for f in flavor_assets:
 206             # Continue if asset is not ready
 207             if f['status'] != 2:
 208                 continue
 209             video_url = sign_url('%s/flavorId/%s' % (info['dataUrl'], f['id']))
 210             formats.append({
 211                 'format_id': '%(fileExt)s-%(bitrate)s' % f,
 212                 'ext': f.get('fileExt'),
 213                 'tbr': int_or_none(f['bitrate']),
 214                 'fps': int_or_none(f.get('frameRate')),
 215                 'filesize_approx': int_or_none(f.get('size'), invscale=1024),
 216                 'container': f.get('containerFormat'),
 217                 'vcodec': f.get('videoCodecId'),
 218                 'height': int_or_none(f.get('height')),
 219                 'width': int_or_none(f.get('width')),
 220                 'url': video_url,
 221             })
 222         m3u8_url = sign_url(info['dataUrl'].replace('format/url', 'format/applehttp'))
 223         formats.extend(self._extract_m3u8_formats(
 224             m3u8_url, entry_id, 'mp4', 'm3u8_native', m3u8_id='hls', fatal=False))
 225
 226         self._check_formats(formats, entry_id)
 227         self._sort_formats(formats)
 228
 229         return {
 230             'id': entry_id,
 231             'title': info['name'],
 232             'formats': formats,
 233             'description': clean_html(info.get('description')),
 234             'thumbnail': info.get('thumbnailUrl'),
 235             'duration': info.get('duration'),
 236             'timestamp': info.get('createdAt'),
 237             'uploader_id': info.get('userId'),
 238             'view_count': info.get('plays'),
 239         }