[ustream] Remove unnecessary webpage download
[youtube-dl] / youtube_dl / extractor / ustream.py
1 from __future__ import unicode_literals
2
3 import json
4 import re
5
6 from .common import InfoExtractor
7 from ..utils import (
8     compat_urlparse,
9     get_meta_content,
10 )
11
12
13 class UstreamIE(InfoExtractor):
14     _VALID_URL = r'https?://www\.ustream\.tv/(?P<type>recorded|embed|embed/recorded)/(?P<videoID>\d+)'
15     IE_NAME = 'ustream'
16     _TEST = {
17         'url': 'http://www.ustream.tv/recorded/20274954',
18         'file': '20274954.flv',
19         'md5': '088f151799e8f572f84eb62f17d73e5c',
20         'info_dict': {
21             "uploader": "Young Americans for Liberty",
22             "title": "Young Americans for Liberty February 7, 2012 2:28 AM",
23         },
24     }
25
26     def _real_extract(self, url):
27         m = re.match(self._VALID_URL, url)
28         video_id = m.group('videoID')
29
30         if m.group('type') == 'embed/recorded': # some sites use this embed format (see: http://github.com/rg3/youtube-dl/issues/2990)
31             video_id = m.group('videoID')
32             desktop_url = 'http://www.ustream.tv/recorded/' + video_id
33             return self.url_result(desktop_url, 'Ustream')
34         if m.group('type') == 'embed':
35             video_id = m.group('videoID')
36             webpage = self._download_webpage(url, video_id)
37             desktop_video_id = self._html_search_regex(r'ContentVideoIds=\["([^"]*?)"\]', webpage, 'desktop_video_id')
38             desktop_url = 'http://www.ustream.tv/recorded/' + desktop_video_id
39             return self.url_result(desktop_url, 'Ustream')
40
41         video_url = 'http://tcdn.ustream.tv/video/%s' % video_id
42         webpage = self._download_webpage(url, video_id)
43
44         self.report_extraction(video_id)
45
46         video_title = self._html_search_regex(r'data-title="(?P<title>.+)"',
47             webpage, 'title')
48
49         uploader = self._html_search_regex(r'data-content-type="channel".*?>(?P<uploader>.*?)</a>',
50             webpage, 'uploader', fatal=False, flags=re.DOTALL)
51
52         thumbnail = self._html_search_regex(r'<link rel="image_src" href="(?P<thumb>.*?)"',
53             webpage, 'thumbnail', fatal=False)
54
55         return {
56             'id': video_id,
57             'url': video_url,
58             'ext': 'flv',
59             'title': video_title,
60             'uploader': uploader,
61             'thumbnail': thumbnail,
62         }
63
64
65 class UstreamChannelIE(InfoExtractor):
66     _VALID_URL = r'https?://www\.ustream\.tv/channel/(?P<slug>.+)'
67     IE_NAME = 'ustream:channel'
68
69     def _real_extract(self, url):
70         m = re.match(self._VALID_URL, url)
71         slug = m.group('slug')
72         webpage = self._download_webpage(url, slug)
73         channel_id = get_meta_content('ustream:channel_id', webpage)
74
75         BASE = 'http://www.ustream.tv'
76         next_url = '/ajax/socialstream/videos/%s/1.json' % channel_id
77         video_ids = []
78         while next_url:
79             reply = json.loads(self._download_webpage(compat_urlparse.urljoin(BASE, next_url), channel_id))
80             video_ids.extend(re.findall(r'data-content-id="(\d.*)"', reply['data']))
81             next_url = reply['nextUrl']
82
83         urls = ['http://www.ustream.tv/recorded/' + vid for vid in video_ids]
84         url_entries = [self.url_result(eurl, 'Ustream') for eurl in urls]
85         return self.playlist_result(url_entries, channel_id)