youtube_dl/extractor/slideshare.py

   1 from __future__ import unicode_literals
   2
   3 import re
   4 import json
   5
   6 from .common import InfoExtractor
   7 from ..utils import (
   8     compat_urlparse,
   9     ExtractorError,
  10 )
  11
  12
  13 class SlideshareIE(InfoExtractor):
  14     _VALID_URL = r'https?://www\.slideshare\.net/[^/]+?/(?P<title>.+?)($|\?)'
  15
  16     _TEST = {
  17         'url': 'http://www.slideshare.net/Dataversity/keynote-presentation-managing-scale-and-complexity',
  18         'info_dict': {
  19             'id': '25665706',
  20             'ext': 'mp4',
  21             'title': 'Managing Scale and Complexity',
  22             'description': 'This was a keynote presentation at the NoSQL Now! 2013 Conference & Expo (http://www.nosqlnow.com). This presentation was given by Adrian Cockcroft from Netflix.',
  23         },
  24     }
  25
  26     def _real_extract(self, url):
  27         mobj = re.match(self._VALID_URL, url)
  28         page_title = mobj.group('title')
  29         webpage = self._download_webpage(url, page_title)
  30         slideshare_obj = self._search_regex(
  31             r'var slideshare_object =  ({.*?}); var user_info =',
  32             webpage, 'slideshare object')
  33         info = json.loads(slideshare_obj)
  34         if info['slideshow']['type'] != 'video':
  35             raise ExtractorError('Webpage type is "%s": only video extraction is supported for Slideshare' % info['slideshow']['type'], expected=True)
  36
  37         doc = info['doc']
  38         bucket = info['jsplayer']['video_bucket']
  39         ext = info['jsplayer']['video_extension']
  40         video_url = compat_urlparse.urljoin(bucket, doc + '-SD.' + ext)
  41         description = self._html_search_regex(
  42             r'<p\s+(?:style="[^"]*"\s+)?class=".*?description.*?"[^>]*>(.*?)</p>', webpage,
  43             'description', fatal=False)
  44
  45         return {
  46             '_type': 'video',
  47             'id': info['slideshow']['id'],
  48             'title': info['slideshow']['title'],
  49             'ext': ext,
  50             'url': video_url,
  51             'thumbnail': info['slideshow']['pin_image_url'],
  52             'description': description,
  53         }