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[youtube-dl] / youtube_dl / extractor / screencast.py
1 # -*- coding: utf-8 -*-
2 from __future__ import unicode_literals
3
4 from .common import InfoExtractor
5 from ..compat import (
6     compat_parse_qs,
7     compat_urllib_request,
8 )
9 from ..utils import (
10     ExtractorError,
11 )
12
13
14 class ScreencastIE(InfoExtractor):
15     _VALID_URL = r'https?://(?:www\.)?screencast\.com/t/(?P<id>[a-zA-Z0-9]+)'
16     _TESTS = [{
17         'url': 'http://www.screencast.com/t/3ZEjQXlT',
18         'md5': '917df1c13798a3e96211dd1561fded83',
19         'info_dict': {
20             'id': '3ZEjQXlT',
21             'ext': 'm4v',
22             'title': 'Color Measurement with Ocean Optics Spectrometers',
23             'description': 'md5:240369cde69d8bed61349a199c5fb153',
24             'thumbnail': 're:^https?://.*\.(?:gif|jpg)$',
25         }
26     }, {
27         'url': 'http://www.screencast.com/t/V2uXehPJa1ZI',
28         'md5': 'e8e4b375a7660a9e7e35c33973410d34',
29         'info_dict': {
30             'id': 'V2uXehPJa1ZI',
31             'ext': 'mov',
32             'title': 'The Amadeus Spectrometer',
33             'description': 're:^In this video, our friends at.*To learn more about Amadeus, visit',
34             'thumbnail': 're:^https?://.*\.(?:gif|jpg)$',
35         }
36     }, {
37         'url': 'http://www.screencast.com/t/aAB3iowa',
38         'md5': 'dedb2734ed00c9755761ccaee88527cd',
39         'info_dict': {
40             'id': 'aAB3iowa',
41             'ext': 'mp4',
42             'title': 'Google Earth Export',
43             'description': 'Provides a demo of a CommunityViz export to Google Earth, one of the 3D viewing options.',
44             'thumbnail': 're:^https?://.*\.(?:gif|jpg)$',
45         }
46     }, {
47         'url': 'http://www.screencast.com/t/X3ddTrYh',
48         'md5': '669ee55ff9c51988b4ebc0877cc8b159',
49         'info_dict': {
50             'id': 'X3ddTrYh',
51             'ext': 'wmv',
52             'title': 'Toolkit 6 User Group Webinar (2014-03-04) - Default Judgment and First Impression',
53             'description': 'md5:7b9f393bc92af02326a5c5889639eab0',
54             'thumbnail': 're:^https?://.*\.(?:gif|jpg)$',
55         }
56     }, {
57         'url': 'http://screencast.com/t/aAB3iowa',
58         'only_matching': True,
59     }]
60
61     def _real_extract(self, url):
62         video_id = self._match_id(url)
63         webpage = self._download_webpage(url, video_id)
64
65         video_url = self._html_search_regex(
66             r'<embed name="Video".*?src="([^"]+)"', webpage,
67             'QuickTime embed', default=None)
68
69         if video_url is None:
70             flash_vars_s = self._html_search_regex(
71                 r'<param name="flashVars" value="([^"]+)"', webpage, 'flash vars',
72                 default=None)
73             if not flash_vars_s:
74                 flash_vars_s = self._html_search_regex(
75                     r'<param name="initParams" value="([^"]+)"', webpage, 'flash vars',
76                     default=None)
77                 if flash_vars_s:
78                     flash_vars_s = flash_vars_s.replace(',', '&')
79             if flash_vars_s:
80                 flash_vars = compat_parse_qs(flash_vars_s)
81                 video_url_raw = compat_urllib_request.quote(
82                     flash_vars['content'][0])
83                 video_url = video_url_raw.replace('http%3A', 'http:')
84
85         if video_url is None:
86             video_meta = self._html_search_meta(
87                 'og:video', webpage, default=None)
88             if video_meta:
89                 video_url = self._search_regex(
90                     r'src=(.*?)(?:$|&)', video_meta,
91                     'meta tag video URL', default=None)
92
93         if video_url is None:
94             raise ExtractorError('Cannot find video')
95
96         title = self._og_search_title(webpage, default=None)
97         if title is None:
98             title = self._html_search_regex(
99                 [r'<b>Title:</b> ([^<]+)</div>',
100                  r'class="tabSeperator">></span><span class="tabText">(.+?)<',
101                  r'<title>([^<]+)</title>'],
102                 webpage, 'title')
103         thumbnail = self._og_search_thumbnail(webpage)
104         description = self._og_search_description(webpage, default=None)
105         if description is None:
106             description = self._html_search_meta('description', webpage)
107
108         return {
109             'id': video_id,
110             'url': video_url,
111             'title': title,
112             'description': description,
113             'thumbnail': thumbnail,
114         }