_ 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|
  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     _TESTS = [
  40         {
  41             'url': 'kaltura:269692:1_1jc2y3e4',
  42             'md5': '3adcbdb3dcc02d647539e53f284ba171',
  43             'info_dict': {
  44                 'id': '1_1jc2y3e4',
  45                 'ext': 'mp4',
  46                 'title': 'Straight from the Heart',
  47                 'upload_date': '20131219',
  48                 'uploader_id': 'mlundberg@wolfgangsvault.com',
  49                 'description': 'The Allman Brothers Band, 12/16/1981',
  50                 'thumbnail': 're:^https?://.*/thumbnail/.*',
  51                 'timestamp': int,
  52             },
  53         },
  54         {
  55             'url': 'http://www.kaltura.com/index.php/kwidget/cache_st/1300318621/wid/_269692/uiconf_id/3873291/entry_id/1_1jc2y3e4',
  56             'only_matching': True,
  57         },
  58         {
  59             'url': 'https://cdnapisec.kaltura.com/index.php/kwidget/wid/_557781/uiconf_id/22845202/entry_id/1_plr1syf3',
  60             'only_matching': True,
  61         },
  62         {
  63             'url': 'https://cdnapisec.kaltura.com/html5/html5lib/v2.30.2/mwEmbedFrame.php/p/1337/uiconf_id/20540612/entry_id/1_sf5ovm7u?wid=_243342',
  64             'only_matching': True,
  65         }
  66     ]
  67
  68     @staticmethod
  69     def _extract_url(webpage):
  70         mobj = (
  71             re.search(
  72                 r"""(?xs)
  73                     kWidget\.(?:thumb)?[Ee]mbed\(
  74                     \{.*?
  75                         (?P<q1>['\"])wid(?P=q1)\s*:\s*
  76                         (?P<q2>['\"])_?(?P<partner_id>[^'\"]+)(?P=q2),.*?
  77                         (?P<q3>['\"])entry_?[Ii]d(?P=q3)\s*:\s*
  78                         (?P<q4>['\"])(?P<id>[^'\"]+)(?P=q4),
  79                 """, webpage) or
  80             re.search(
  81                 r'''(?xs)
  82                     (?P<q1>["\'])
  83                         (?:https?:)?//cdnapi(?:sec)?\.kaltura\.com/.*?(?:p|partner_id)/(?P<partner_id>\d+).*?
  84                     (?P=q1).*?
  85                     (?:
  86                         entry_?[Ii]d|
  87                         (?P<q2>["\'])entry_?[Ii]d(?P=q2)
  88                     )\s*:\s*
  89                     (?P<q3>["\'])(?P<id>.+?)(?P=q3)
  90                 ''', webpage))
  91         if mobj:
  92             embed_info = mobj.groupdict()
  93             url = 'kaltura:%(partner_id)s:%(id)s' % embed_info
  94             escaped_pid = re.escape(embed_info['partner_id'])
  95             service_url = re.search(
  96                 r'<script[^>]+src=["\']((?:https?:)?//.+?)/p/%s/sp/%s00/embedIframeJs' % (escaped_pid, escaped_pid),
  97                 webpage)
  98             if service_url:
  99                 url = smuggle_url(url, {'service_url': service_url.group(1)})
 100             return url
 101
 102     def _kaltura_api_call(self, video_id, actions, service_url=None, *args, **kwargs):
 103         params = actions[0]
 104         if len(actions) > 1:
 105             for i, a in enumerate(actions[1:], start=1):
 106                 for k, v in a.items():
 107                     params['%d:%s' % (i, k)] = v
 108
 109         data = self._download_json(
 110             (service_url or self._SERVICE_URL) + self._SERVICE_BASE,
 111             video_id, query=params, *args, **kwargs)
 112
 113         status = data if len(actions) == 1 else data[0]
 114         if status.get('objectType') == 'KalturaAPIException':
 115             raise ExtractorError(
 116                 '%s said: %s' % (self.IE_NAME, status['message']))
 117
 118         return data
 119
 120     def _get_kaltura_signature(self, video_id, partner_id, service_url=None):
 121         actions = [{
 122             'apiVersion': '3.1',
 123             'expiry': 86400,
 124             'format': 1,
 125             'service': 'session',
 126             'action': 'startWidgetSession',
 127             'widgetId': '_%s' % partner_id,
 128         }]
 129         return self._kaltura_api_call(
 130             video_id, actions, service_url, note='Downloading Kaltura signature')['ks']
 131
 132     def _get_video_info(self, video_id, partner_id, service_url=None):
 133         signature = self._get_kaltura_signature(video_id, partner_id, service_url)
 134         actions = [
 135             {
 136                 'action': 'null',
 137                 'apiVersion': '3.1.5',
 138                 'clientTag': 'kdp:v3.8.5',
 139                 'format': 1,  # JSON, 2 = XML, 3 = PHP
 140                 'service': 'multirequest',
 141                 'ks': signature,
 142             },
 143             {
 144                 'action': 'get',
 145                 'entryId': video_id,
 146                 'service': 'baseentry',
 147                 'version': '-1',
 148             },
 149             {
 150                 'action': 'getbyentryid',
 151                 'entryId': video_id,
 152                 'service': 'flavorAsset',
 153             },
 154         ]
 155         return self._kaltura_api_call(
 156             video_id, actions, service_url, note='Downloading video info JSON')
 157
 158     def _real_extract(self, url):
 159         url, smuggled_data = unsmuggle_url(url, {})
 160
 161         mobj = re.match(self._VALID_URL, url)
 162         partner_id, entry_id = mobj.group('partner_id', 'id')
 163         ks = None
 164         if partner_id and entry_id:
 165             info, flavor_assets = self._get_video_info(entry_id, partner_id, smuggled_data.get('service_url'))
 166         else:
 167             path, query = mobj.group('path', 'query')
 168             if not path and not query:
 169                 raise ExtractorError('Invalid URL', expected=True)
 170             params = {}
 171             if query:
 172                 params = compat_parse_qs(query)
 173             if path:
 174                 splitted_path = path.split('/')
 175                 params.update(dict((zip(splitted_path[::2], [[v] for v in splitted_path[1::2]]))))
 176             if 'wid' in params:
 177                 partner_id = params['wid'][0][1:]
 178             elif 'p' in params:
 179                 partner_id = params['p'][0]
 180             else:
 181                 raise ExtractorError('Invalid URL', expected=True)
 182             if 'entry_id' in params:
 183                 entry_id = params['entry_id'][0]
 184                 info, flavor_assets = self._get_video_info(entry_id, partner_id)
 185             elif 'uiconf_id' in params and 'flashvars[referenceId]' in params:
 186                 reference_id = params['flashvars[referenceId]'][0]
 187                 webpage = self._download_webpage(url, reference_id)
 188                 entry_data = self._parse_json(self._search_regex(
 189                     r'window\.kalturaIframePackageData\s*=\s*({.*});',
 190                     webpage, 'kalturaIframePackageData'),
 191                     reference_id)['entryResult']
 192                 info, flavor_assets = entry_data['meta'], entry_data['contextData']['flavorAssets']
 193                 entry_id = info['id']
 194             else:
 195                 raise ExtractorError('Invalid URL', expected=True)
 196             ks = params.get('flashvars[ks]', [None])[0]
 197
 198         source_url = smuggled_data.get('source_url')
 199         if source_url:
 200             referrer = base64.b64encode(
 201                 '://'.join(compat_urlparse.urlparse(source_url)[:2])
 202                 .encode('utf-8')).decode('utf-8')
 203         else:
 204             referrer = None
 205
 206         def sign_url(unsigned_url):
 207             if ks:
 208                 unsigned_url += '/ks/%s' % ks
 209             if referrer:
 210                 unsigned_url += '?referrer=%s' % referrer
 211             return unsigned_url
 212
 213         data_url = info['dataUrl']
 214         if '/flvclipper/' in data_url:
 215             data_url = re.sub(r'/flvclipper/.*', '/serveFlavor', data_url)
 216
 217         formats = []
 218         for f in flavor_assets:
 219             # Continue if asset is not ready
 220             if f['status'] != 2:
 221                 continue
 222             video_url = sign_url(
 223                 '%s/flavorId/%s' % (data_url, f['id']))
 224             formats.append({
 225                 'format_id': '%(fileExt)s-%(bitrate)s' % f,
 226                 'ext': f.get('fileExt'),
 227                 'tbr': int_or_none(f['bitrate']),
 228                 'fps': int_or_none(f.get('frameRate')),
 229                 'filesize_approx': int_or_none(f.get('size'), invscale=1024),
 230                 'container': f.get('containerFormat'),
 231                 'vcodec': f.get('videoCodecId'),
 232                 'height': int_or_none(f.get('height')),
 233                 'width': int_or_none(f.get('width')),
 234                 'url': video_url,
 235             })
 236         if '/playManifest/' in data_url:
 237             m3u8_url = sign_url(data_url.replace(
 238                 'format/url', 'format/applehttp'))
 239             formats.extend(self._extract_m3u8_formats(
 240                 m3u8_url, entry_id, 'mp4', 'm3u8_native',
 241                 m3u8_id='hls', fatal=False))
 242
 243         self._check_formats(formats, entry_id)
 244         self._sort_formats(formats)
 245
 246         return {
 247             'id': entry_id,
 248             'title': info['name'],
 249             'formats': formats,
 250             'description': clean_html(info.get('description')),
 251             'thumbnail': info.get('thumbnailUrl'),
 252             'duration': info.get('duration'),
 253             'timestamp': info.get('createdAt'),
 254             'uploader_id': info.get('userId'),
 255             'view_count': info.get('plays'),
 256         }