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			371 lines
		
	
	
		
			15 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			371 lines
		
	
	
		
			15 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
| # coding: utf-8
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| from __future__ import unicode_literals
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| 
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| import re
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| import base64
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| 
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| from .common import InfoExtractor
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| from ..compat import (
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|     compat_urlparse,
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|     compat_parse_qs,
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| )
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| from ..utils import (
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|     clean_html,
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|     ExtractorError,
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|     int_or_none,
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|     unsmuggle_url,
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|     smuggle_url,
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| )
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| 
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| 
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| class KalturaIE(InfoExtractor):
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|     _VALID_URL = r'''(?x)
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|                 (?:
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|                     kaltura:(?P<partner_id>\d+):(?P<id>[0-9a-z_]+)|
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|                     https?://
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|                         (:?(?:www|cdnapi(?:sec)?)\.)?kaltura\.com(?::\d+)?/
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|                         (?:
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|                             (?:
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|                                 # flash player
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|                                 index\.php/(?:kwidget|extwidget/preview)|
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|                                 # html5 player
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|                                 html5/html5lib/[^/]+/mwEmbedFrame\.php
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|                             )
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|                         )(?:/(?P<path>[^?]+))?(?:\?(?P<query>.*))?
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|                 )
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|                 '''
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|     _SERVICE_URL = 'http://cdnapi.kaltura.com'
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|     _SERVICE_BASE = '/api_v3/index.php'
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|     # See https://github.com/kaltura/server/blob/master/plugins/content/caption/base/lib/model/enums/CaptionType.php
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|     _CAPTION_TYPES = {
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|         1: 'srt',
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|         2: 'ttml',
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|         3: 'vtt',
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|     }
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|     _TESTS = [
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|         {
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|             'url': 'kaltura:269692:1_1jc2y3e4',
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|             'md5': '3adcbdb3dcc02d647539e53f284ba171',
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|             'info_dict': {
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|                 'id': '1_1jc2y3e4',
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|                 'ext': 'mp4',
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|                 'title': 'Straight from the Heart',
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|                 'upload_date': '20131219',
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|                 'uploader_id': 'mlundberg@wolfgangsvault.com',
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|                 'description': 'The Allman Brothers Band, 12/16/1981',
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|                 'thumbnail': 're:^https?://.*/thumbnail/.*',
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|                 'timestamp': int,
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|             },
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|         },
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|         {
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|             'url': 'http://www.kaltura.com/index.php/kwidget/cache_st/1300318621/wid/_269692/uiconf_id/3873291/entry_id/1_1jc2y3e4',
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|             'only_matching': True,
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|         },
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|         {
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|             'url': 'https://cdnapisec.kaltura.com/index.php/kwidget/wid/_557781/uiconf_id/22845202/entry_id/1_plr1syf3',
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|             'only_matching': True,
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|         },
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|         {
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|             'url': 'https://cdnapisec.kaltura.com/html5/html5lib/v2.30.2/mwEmbedFrame.php/p/1337/uiconf_id/20540612/entry_id/1_sf5ovm7u?wid=_243342',
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|             'only_matching': True,
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|         },
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|         {
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|             # video with subtitles
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|             'url': 'kaltura:111032:1_cw786r8q',
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|             'only_matching': True,
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|         },
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|         {
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|             # video with ttml subtitles (no fileExt)
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|             'url': 'kaltura:1926081:0_l5ye1133',
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|             'info_dict': {
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|                 'id': '0_l5ye1133',
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|                 'ext': 'mp4',
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|                 'title': 'What Can You Do With Python?',
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|                 'upload_date': '20160221',
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|                 'uploader_id': 'stork',
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|                 'thumbnail': 're:^https?://.*/thumbnail/.*',
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|                 'timestamp': int,
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|                 'subtitles': {
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|                     'en': [{
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|                         'ext': 'ttml',
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|                     }],
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|                 },
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|             },
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|             'skip': 'Gone. Maybe https://www.safaribooksonline.com/library/tutorials/introduction-to-python-anon/3469/',
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|             'params': {
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|                 'skip_download': True,
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|             },
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|         },
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|         {
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|             'url': 'https://www.kaltura.com/index.php/extwidget/preview/partner_id/1770401/uiconf_id/37307382/entry_id/0_58u8kme7/embed/iframe?&flashvars[streamerType]=auto',
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|             'only_matching': True,
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|         },
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|         {
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|             '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',
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|             'only_matching': True,
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|         },
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|         {
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|             # unavailable source format
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|             'url': 'kaltura:513551:1_66x4rg7o',
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|             'only_matching': True,
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|         }
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|     ]
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| 
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|     @staticmethod
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|     def _extract_url(webpage):
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|         # Embed codes: https://knowledge.kaltura.com/embedding-kaltura-media-players-your-site
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|         mobj = (
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|             re.search(
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|                 r"""(?xs)
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|                     kWidget\.(?:thumb)?[Ee]mbed\(
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|                     \{.*?
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|                         (?P<q1>['"])wid(?P=q1)\s*:\s*
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|                         (?P<q2>['"])_?(?P<partner_id>(?:(?!(?P=q2)).)+)(?P=q2),.*?
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|                         (?P<q3>['"])entry_?[Ii]d(?P=q3)\s*:\s*
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|                         (?P<q4>['"])(?P<id>(?:(?!(?P=q4)).)+)(?P=q4)(?:,|\s*\})
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|                 """, webpage)
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|             or re.search(
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|                 r'''(?xs)
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|                     (?P<q1>["'])
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|                         (?:https?:)?//cdnapi(?:sec)?\.kaltura\.com(?::\d+)?/(?:(?!(?P=q1)).)*\b(?:p|partner_id)/(?P<partner_id>\d+)(?:(?!(?P=q1)).)*
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|                     (?P=q1).*?
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|                     (?:
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|                         (?:
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|                             entry_?[Ii]d|
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|                             (?P<q2>["'])entry_?[Ii]d(?P=q2)
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|                         )\s*:\s*|
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|                         \[\s*(?P<q2_1>["'])entry_?[Ii]d(?P=q2_1)\s*\]\s*=\s*
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|                     )
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|                     (?P<q3>["'])(?P<id>(?:(?!(?P=q3)).)+)(?P=q3)
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|                 ''', webpage)
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|             or re.search(
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|                 r'''(?xs)
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|                     <(?:iframe[^>]+src|meta[^>]+\bcontent)=(?P<q1>["'])
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|                       (?:https?:)?//(?:(?:www|cdnapi(?:sec)?)\.)?kaltura\.com/(?:(?!(?P=q1)).)*\b(?:p|partner_id)/(?P<partner_id>\d+)
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|                       (?:(?!(?P=q1)).)*
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|                       [?&;]entry_id=(?P<id>(?:(?!(?P=q1))[^&])+)
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|                       (?:(?!(?P=q1)).)*
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|                     (?P=q1)
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|                 ''', webpage)
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|         )
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|         if mobj:
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|             embed_info = mobj.groupdict()
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|             for k, v in embed_info.items():
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|                 if v:
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|                     embed_info[k] = v.strip()
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|             url = 'kaltura:%(partner_id)s:%(id)s' % embed_info
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|             escaped_pid = re.escape(embed_info['partner_id'])
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|             service_mobj = re.search(
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|                 r'<script[^>]+src=(["\'])(?P<id>(?:https?:)?//(?:(?!\1).)+)/p/%s/sp/%s00/embedIframeJs' % (escaped_pid, escaped_pid),
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|                 webpage)
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|             if service_mobj:
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|                 url = smuggle_url(url, {'service_url': service_mobj.group('id')})
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|             return url
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| 
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|     def _kaltura_api_call(self, video_id, actions, service_url=None, *args, **kwargs):
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|         params = actions[0]
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|         if len(actions) > 1:
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|             for i, a in enumerate(actions[1:], start=1):
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|                 for k, v in a.items():
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|                     params['%d:%s' % (i, k)] = v
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| 
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|         data = self._download_json(
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|             (service_url or self._SERVICE_URL) + self._SERVICE_BASE,
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|             video_id, query=params, *args, **kwargs)
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| 
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|         status = data if len(actions) == 1 else data[0]
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|         if status.get('objectType') == 'KalturaAPIException':
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|             raise ExtractorError(
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|                 '%s said: %s' % (self.IE_NAME, status['message']))
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| 
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|         return data
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| 
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|     def _get_video_info(self, video_id, partner_id, service_url=None):
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|         actions = [
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|             {
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|                 'action': 'null',
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|                 'apiVersion': '3.1.5',
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|                 'clientTag': 'kdp:v3.8.5',
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|                 'format': 1,  # JSON, 2 = XML, 3 = PHP
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|                 'service': 'multirequest',
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|             },
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|             {
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|                 'expiry': 86400,
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|                 'service': 'session',
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|                 'action': 'startWidgetSession',
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|                 'widgetId': '_%s' % partner_id,
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|             },
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|             {
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|                 'action': 'get',
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|                 'entryId': video_id,
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|                 'service': 'baseentry',
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|                 'ks': '{1:result:ks}',
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|                 'responseProfile:fields': 'createdAt,dataUrl,duration,name,plays,thumbnailUrl,userId',
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|                 'responseProfile:type': 1,
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|             },
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|             {
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|                 'action': 'getbyentryid',
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|                 'entryId': video_id,
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|                 'service': 'flavorAsset',
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|                 'ks': '{1:result:ks}',
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|             },
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|             {
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|                 'action': 'list',
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|                 'filter:entryIdEqual': video_id,
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|                 'service': 'caption_captionasset',
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|                 'ks': '{1:result:ks}',
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|             },
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|         ]
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|         return self._kaltura_api_call(
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|             video_id, actions, service_url, note='Downloading video info JSON')
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| 
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|     def _real_extract(self, url):
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|         url, smuggled_data = unsmuggle_url(url, {})
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| 
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|         mobj = re.match(self._VALID_URL, url)
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|         partner_id, entry_id = mobj.group('partner_id', 'id')
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|         ks = None
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|         captions = None
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|         if partner_id and entry_id:
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|             _, info, flavor_assets, captions = self._get_video_info(entry_id, partner_id, smuggled_data.get('service_url'))
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|         else:
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|             path, query = mobj.group('path', 'query')
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|             if not path and not query:
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|                 raise ExtractorError('Invalid URL', expected=True)
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|             params = {}
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|             if query:
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|                 params = compat_parse_qs(query)
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|             if path:
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|                 splitted_path = path.split('/')
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|                 params.update(dict((zip(splitted_path[::2], [[v] for v in splitted_path[1::2]]))))
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|             if 'wid' in params:
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|                 partner_id = params['wid'][0][1:]
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|             elif 'p' in params:
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|                 partner_id = params['p'][0]
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|             elif 'partner_id' in params:
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|                 partner_id = params['partner_id'][0]
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|             else:
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|                 raise ExtractorError('Invalid URL', expected=True)
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|             if 'entry_id' in params:
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|                 entry_id = params['entry_id'][0]
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|                 _, info, flavor_assets, captions = self._get_video_info(entry_id, partner_id)
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|             elif 'uiconf_id' in params and 'flashvars[referenceId]' in params:
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|                 reference_id = params['flashvars[referenceId]'][0]
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|                 webpage = self._download_webpage(url, reference_id)
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|                 entry_data = self._parse_json(self._search_regex(
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|                     r'window\.kalturaIframePackageData\s*=\s*({.*});',
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|                     webpage, 'kalturaIframePackageData'),
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|                     reference_id)['entryResult']
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|                 info, flavor_assets = entry_data['meta'], entry_data['contextData']['flavorAssets']
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|                 entry_id = info['id']
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|                 # Unfortunately, data returned in kalturaIframePackageData lacks
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|                 # captions so we will try requesting the complete data using
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|                 # regular approach since we now know the entry_id
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|                 try:
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|                     _, info, flavor_assets, captions = self._get_video_info(
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|                         entry_id, partner_id)
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|                 except ExtractorError:
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|                     # Regular scenario failed but we already have everything
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|                     # extracted apart from captions and can process at least
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|                     # with this
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|                     pass
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|             else:
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|                 raise ExtractorError('Invalid URL', expected=True)
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|             ks = params.get('flashvars[ks]', [None])[0]
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| 
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|         source_url = smuggled_data.get('source_url')
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|         if source_url:
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|             referrer = base64.b64encode(
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|                 '://'.join(compat_urlparse.urlparse(source_url)[:2])
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|                 .encode('utf-8')).decode('utf-8')
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|         else:
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|             referrer = None
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| 
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|         def sign_url(unsigned_url):
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|             if ks:
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|                 unsigned_url += '/ks/%s' % ks
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|             if referrer:
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|                 unsigned_url += '?referrer=%s' % referrer
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|             return unsigned_url
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| 
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|         data_url = info['dataUrl']
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|         if '/flvclipper/' in data_url:
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|             data_url = re.sub(r'/flvclipper/.*', '/serveFlavor', data_url)
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| 
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|         formats = []
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|         for f in flavor_assets:
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|             # Continue if asset is not ready
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|             if f.get('status') != 2:
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|                 continue
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|             # Original format that's not available (e.g. kaltura:1926081:0_c03e1b5g)
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|             # skip for now.
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|             if f.get('fileExt') == 'chun':
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|                 continue
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|             # DRM-protected video, cannot be decrypted
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|             if f.get('fileExt') == 'wvm':
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|                 continue
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|             if not f.get('fileExt'):
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|                 # QT indicates QuickTime; some videos have broken fileExt
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|                 if f.get('containerFormat') == 'qt':
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|                     f['fileExt'] = 'mov'
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|                 else:
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|                     f['fileExt'] = 'mp4'
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|             video_url = sign_url(
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|                 '%s/flavorId/%s' % (data_url, f['id']))
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|             format_id = '%(fileExt)s-%(bitrate)s' % f
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|             # Source format may not be available (e.g. kaltura:513551:1_66x4rg7o)
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|             if f.get('isOriginal') is True and not self._is_valid_url(
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|                     video_url, entry_id, format_id):
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|                 continue
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|             # audio-only has no videoCodecId (e.g. kaltura:1926081:0_c03e1b5g
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|             # -f mp4-56)
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|             vcodec = 'none' if 'videoCodecId' not in f and f.get(
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|                 'frameRate') == 0 else f.get('videoCodecId')
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|             formats.append({
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|                 'format_id': format_id,
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|                 'ext': f.get('fileExt'),
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|                 'tbr': int_or_none(f['bitrate']),
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|                 'fps': int_or_none(f.get('frameRate')),
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|                 'filesize_approx': int_or_none(f.get('size'), invscale=1024),
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|                 'container': f.get('containerFormat'),
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|                 'vcodec': vcodec,
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|                 'height': int_or_none(f.get('height')),
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|                 'width': int_or_none(f.get('width')),
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|                 'url': video_url,
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|             })
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|         if '/playManifest/' in data_url:
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|             m3u8_url = sign_url(data_url.replace(
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|                 'format/url', 'format/applehttp'))
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|             formats.extend(self._extract_m3u8_formats(
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|                 m3u8_url, entry_id, 'mp4', 'm3u8_native',
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|                 m3u8_id='hls', fatal=False))
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| 
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|         self._sort_formats(formats)
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| 
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|         subtitles = {}
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|         if captions:
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|             for caption in captions.get('objects', []):
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|                 # Continue if caption is not ready
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|                 if caption.get('status') != 2:
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|                     continue
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|                 if not caption.get('id'):
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|                     continue
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|                 caption_format = int_or_none(caption.get('format'))
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|                 subtitles.setdefault(caption.get('languageCode') or caption.get('language'), []).append({
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|                     'url': '%s/api_v3/service/caption_captionasset/action/serve/captionAssetId/%s' % (self._SERVICE_URL, caption['id']),
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|                     'ext': caption.get('fileExt') or self._CAPTION_TYPES.get(caption_format) or 'ttml',
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|                 })
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| 
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|         return {
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|             'id': entry_id,
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|             'title': info['name'],
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|             'formats': formats,
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|             'subtitles': subtitles,
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|             'description': clean_html(info.get('description')),
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|             'thumbnail': info.get('thumbnailUrl'),
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|             'duration': info.get('duration'),
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|             'timestamp': info.get('createdAt'),
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|             'uploader_id': info.get('userId') if info.get('userId') != 'None' else None,
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|             'view_count': info.get('plays'),
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|         }
 | 
