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,
  10     compat_urlparse,
  11 )
  12 from ..utils import (
  13     clean_html,
  14     ExtractorError,
  15     int_or_none,
  16     unsmuggle_url,
  17 )
  18
  19
  20 class KalturaIE(InfoExtractor):
  21     _VALID_URL = r'''(?x)
  22                 (?:
  23                     kaltura:(?P<partner_id_s>\d+):(?P<id_s>[0-9a-z_]+)|
  24                     https?://
  25                         (:?(?:www|cdnapi(?:sec)?)\.)?kaltura\.com/
  26                         (?:
  27                             (?:
  28                                 # flash player
  29                                 index\.php/kwidget/
  30                                 (?:[^/]+/)*?wid/_(?P<partner_id>\d+)/
  31                                 (?:[^/]+/)*?entry_id/(?P<id>[0-9a-z_]+)|
  32                                 # html5 player
  33                                 html5/html5lib/
  34                                 (?:[^/]+/)*?entry_id/(?P<id_html5>[0-9a-z_]+)
  35                                 .*\?.*\bwid=_(?P<partner_id_html5>\d+)
  36                             )
  37                         )
  38                 )
  39                 '''
  40     _API_BASE = 'http://cdnapi.kaltura.com/api_v3/index.php?'
  41     _TESTS = [
  42         {
  43             'url': 'kaltura:269692:1_1jc2y3e4',
  44             'md5': '3adcbdb3dcc02d647539e53f284ba171',
  45             'info_dict': {
  46                 'id': '1_1jc2y3e4',
  47                 'ext': 'mp4',
  48                 'title': 'Straight from the Heart',
  49                 'upload_date': '20131219',
  50                 'uploader_id': 'mlundberg@wolfgangsvault.com',
  51                 'description': 'The Allman Brothers Band, 12/16/1981',
  52                 'thumbnail': 're:^https?://.*/thumbnail/.*',
  53                 'timestamp': int,
  54             },
  55         },
  56         {
  57             'url': 'http://www.kaltura.com/index.php/kwidget/cache_st/1300318621/wid/_269692/uiconf_id/3873291/entry_id/1_1jc2y3e4',
  58             'only_matching': True,
  59         },
  60         {
  61             'url': 'https://cdnapisec.kaltura.com/index.php/kwidget/wid/_557781/uiconf_id/22845202/entry_id/1_plr1syf3',
  62             'only_matching': True,
  63         },
  64         {
  65             'url': 'https://cdnapisec.kaltura.com/html5/html5lib/v2.30.2/mwEmbedFrame.php/p/1337/uiconf_id/20540612/entry_id/1_sf5ovm7u?wid=_243342',
  66             'only_matching': True,
  67         }
  68     ]
  69
  70     def _kaltura_api_call(self, video_id, actions, *args, **kwargs):
  71         params = actions[0]
  72         if len(actions) > 1:
  73             for i, a in enumerate(actions[1:], start=1):
  74                 for k, v in a.items():
  75                     params['%d:%s' % (i, k)] = v
  76
  77         query = compat_urllib_parse.urlencode(params)
  78         url = self._API_BASE + query
  79         data = self._download_json(url, video_id, *args, **kwargs)
  80
  81         status = data if len(actions) == 1 else data[0]
  82         if status.get('objectType') == 'KalturaAPIException':
  83             raise ExtractorError(
  84                 '%s said: %s' % (self.IE_NAME, status['message']))
  85
  86         return data
  87
  88     def _get_kaltura_signature(self, video_id, partner_id):
  89         actions = [{
  90             'apiVersion': '3.1',
  91             'expiry': 86400,
  92             'format': 1,
  93             'service': 'session',
  94             'action': 'startWidgetSession',
  95             'widgetId': '_%s' % partner_id,
  96         }]
  97         return self._kaltura_api_call(
  98             video_id, actions, note='Downloading Kaltura signature')['ks']
  99
 100     def _get_video_info(self, video_id, partner_id):
 101         signature = self._get_kaltura_signature(video_id, partner_id)
 102         actions = [
 103             {
 104                 'action': 'null',
 105                 'apiVersion': '3.1.5',
 106                 'clientTag': 'kdp:v3.8.5',
 107                 'format': 1,  # JSON, 2 = XML, 3 = PHP
 108                 'service': 'multirequest',
 109                 'ks': signature,
 110             },
 111             {
 112                 'action': 'get',
 113                 'entryId': video_id,
 114                 'service': 'baseentry',
 115                 'version': '-1',
 116             },
 117             {
 118                 'action': 'getbyentryid',
 119                 'entryId': video_id,
 120                 'service': 'flavorAsset',
 121             },
 122         ]
 123         return self._kaltura_api_call(
 124             video_id, actions, note='Downloading video info JSON')
 125
 126     def _real_extract(self, url):
 127         url, smuggled_data = unsmuggle_url(url, {})
 128
 129         mobj = re.match(self._VALID_URL, url)
 130         partner_id = mobj.group('partner_id_s') or mobj.group('partner_id') or mobj.group('partner_id_html5')
 131         entry_id = mobj.group('id_s') or mobj.group('id') or mobj.group('id_html5')
 132
 133         info, flavor_assets = self._get_video_info(entry_id, partner_id)
 134
 135         source_url = smuggled_data.get('source_url')
 136         if source_url:
 137             referrer = base64.b64encode(
 138                 '://'.join(compat_urlparse.urlparse(source_url)[:2])
 139                 .encode('utf-8')).decode('utf-8')
 140         else:
 141             referrer = None
 142
 143         formats = []
 144         for f in flavor_assets:
 145             # Continue if asset is not ready
 146             if f['status'] != 2:
 147                 continue
 148             video_url = '%s/flavorId/%s' % (info['dataUrl'], f['id'])
 149             if referrer:
 150                 video_url += '?referrer=%s' % referrer
 151             formats.append({
 152                 'format_id': '%(fileExt)s-%(bitrate)s' % f,
 153                 'ext': f.get('fileExt'),
 154                 'tbr': int_or_none(f['bitrate']),
 155                 'fps': int_or_none(f.get('frameRate')),
 156                 'filesize_approx': int_or_none(f.get('size'), invscale=1024),
 157                 'container': f.get('containerFormat'),
 158                 'vcodec': f.get('videoCodecId'),
 159                 'height': int_or_none(f.get('height')),
 160                 'width': int_or_none(f.get('width')),
 161                 'url': video_url,
 162             })
 163         m3u8_url = info['dataUrl'].replace('format/url', 'format/applehttp')
 164         if referrer:
 165             m3u8_url += '?referrer=%s' % referrer
 166         formats.extend(self._extract_m3u8_formats(
 167             m3u8_url, entry_id, 'mp4', 'm3u8_native', m3u8_id='hls', fatal=False))
 168
 169         self._check_formats(formats, entry_id)
 170         self._sort_formats(formats)
 171
 172         return {
 173             'id': entry_id,
 174             'title': info['name'],
 175             'formats': formats,
 176             'description': clean_html(info.get('description')),
 177             'thumbnail': info.get('thumbnailUrl'),
 178             'duration': info.get('duration'),
 179             'timestamp': info.get('createdAt'),
 180             'uploader_id': info.get('userId'),
 181             'view_count': info.get('plays'),
 182         }