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[youtube-dl] / 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 ..compat import (
8     compat_urlparse,
9 )
10 from ..utils import (
11     ExtractorError,
12 )
13
14
15 class SlideshareIE(InfoExtractor):
16     _VALID_URL = r'https?://www\.slideshare\.net/[^/]+?/(?P<title>.+?)($|\?)'
17
18     _TEST = {
19         'url': 'http://www.slideshare.net/Dataversity/keynote-presentation-managing-scale-and-complexity',
20         'info_dict': {
21             'id': '25665706',
22             'ext': 'mp4',
23             'title': 'Managing Scale and Complexity',
24             '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.',
25         },
26     }
27
28     def _real_extract(self, url):
29         mobj = re.match(self._VALID_URL, url)
30         page_title = mobj.group('title')
31         webpage = self._download_webpage(url, page_title)
32         slideshare_obj = self._search_regex(
33             r'\$\.extend\(slideshare_object,\s*(\{.*?\})\);',
34             webpage, 'slideshare object')
35         info = json.loads(slideshare_obj)
36         if info['slideshow']['type'] != 'video':
37             raise ExtractorError('Webpage type is "%s": only video extraction is supported for Slideshare' % info['slideshow']['type'], expected=True)
38
39         doc = info['doc']
40         bucket = info['jsplayer']['video_bucket']
41         ext = info['jsplayer']['video_extension']
42         video_url = compat_urlparse.urljoin(bucket, doc + '-SD.' + ext)
43         description = self._html_search_regex(
44             r'(?s)<p[^>]+itemprop="description"[^>]*>(.+?)</p>', webpage,
45             'description', fatal=False)
46
47         return {
48             '_type': 'video',
49             'id': info['slideshow']['id'],
50             'title': info['slideshow']['title'],
51             'ext': ext,
52             'url': video_url,
53             'thumbnail': info['slideshow']['pin_image_url'],
54             'description': description,
55         }