]> Raphaël G. Git Repositories - youtubedl/blob - youtube_dl/extractor/mediasite.py
New upstream version 2017.12.31
[youtubedl] / youtube_dl / extractor / mediasite.py
1 # coding: utf-8
2 from __future__ import unicode_literals
3
4 import re
5 import json
6
7 from .common import InfoExtractor
8 from ..compat import (
9 compat_str,
10 compat_urlparse,
11 )
12 from ..utils import (
13 ExtractorError,
14 float_or_none,
15 mimetype2ext,
16 unescapeHTML,
17 unsmuggle_url,
18 urljoin,
19 )
20
21
22 class MediasiteIE(InfoExtractor):
23 _VALID_URL = r'(?xi)https?://[^/]+/Mediasite/Play/(?P<id>[0-9a-f]{32,34})(?P<query>\?[^#]+|)'
24 _TESTS = [
25 {
26 'url': 'https://hitsmediaweb.h-its.org/mediasite/Play/2db6c271681e4f199af3c60d1f82869b1d',
27 'info_dict': {
28 'id': '2db6c271681e4f199af3c60d1f82869b1d',
29 'ext': 'mp4',
30 'title': 'Lecture: Tuesday, September 20, 2016 - Sir Andrew Wiles',
31 'description': 'Sir Andrew Wiles: “Equations in arithmetic”\\n\\nI will describe some of the interactions between modern number theory and the problem of solving equations in rational numbers or integers\\u0027.',
32 'timestamp': 1474268400.0,
33 'upload_date': '20160919',
34 },
35 },
36 {
37 'url': 'http://mediasite.uib.no/Mediasite/Play/90bb363295d945d6b548c867d01181361d?catalog=a452b7df-9ae1-46b7-a3ba-aceeb285f3eb',
38 'info_dict': {
39 'id': '90bb363295d945d6b548c867d01181361d',
40 'ext': 'mp4',
41 'upload_date': '20150429',
42 'title': '5) IT-forum 2015-Dag 1 - Dungbeetle - How and why Rain created a tiny bug tracker for Unity',
43 'timestamp': 1430311380.0,
44 },
45 },
46 {
47 'url': 'https://collegerama.tudelft.nl/Mediasite/Play/585a43626e544bdd97aeb71a0ec907a01d',
48 'md5': '481fda1c11f67588c0d9d8fbdced4e39',
49 'info_dict': {
50 'id': '585a43626e544bdd97aeb71a0ec907a01d',
51 'ext': 'mp4',
52 'title': 'Een nieuwe wereld: waarden, bewustzijn en techniek van de mensheid 2.0.',
53 'description': '',
54 'thumbnail': r're:^https?://.*\.jpg(?:\?.*)?$',
55 'duration': 7713.088,
56 'timestamp': 1413309600,
57 'upload_date': '20141014',
58 },
59 },
60 {
61 'url': 'https://collegerama.tudelft.nl/Mediasite/Play/86a9ea9f53e149079fbdb4202b521ed21d?catalog=fd32fd35-6c99-466c-89d4-cd3c431bc8a4',
62 'md5': 'ef1fdded95bdf19b12c5999949419c92',
63 'info_dict': {
64 'id': '86a9ea9f53e149079fbdb4202b521ed21d',
65 'ext': 'wmv',
66 'title': '64ste Vakantiecursus: Afvalwater',
67 'description': 'md5:7fd774865cc69d972f542b157c328305',
68 'thumbnail': r're:^https?://.*\.jpg(?:\?.*?)?$',
69 'duration': 10853,
70 'timestamp': 1326446400,
71 'upload_date': '20120113',
72 },
73 },
74 {
75 'url': 'http://digitalops.sandia.gov/Mediasite/Play/24aace4429fc450fb5b38cdbf424a66e1d',
76 'md5': '9422edc9b9a60151727e4b6d8bef393d',
77 'info_dict': {
78 'id': '24aace4429fc450fb5b38cdbf424a66e1d',
79 'ext': 'mp4',
80 'title': 'Xyce Software Training - Section 1',
81 'description': r're:(?s)SAND Number: SAND 2013-7800.{200,}',
82 'upload_date': '20120409',
83 'timestamp': 1333983600,
84 'duration': 7794,
85 }
86 }
87 ]
88
89 # look in Mediasite.Core.js (Mediasite.ContentStreamType[*])
90 _STREAM_TYPES = {
91 0: 'video1', # the main video
92 2: 'slide',
93 3: 'presentation',
94 4: 'video2', # screencast?
95 5: 'video3',
96 }
97
98 @staticmethod
99 def _extract_urls(webpage):
100 return [
101 unescapeHTML(mobj.group('url'))
102 for mobj in re.finditer(
103 r'(?xi)<iframe\b[^>]+\bsrc=(["\'])(?P<url>(?:(?:https?:)?//[^/]+)?/Mediasite/Play/[0-9a-f]{32,34}(?:\?.*?)?)\1',
104 webpage)]
105
106 def _real_extract(self, url):
107 url, data = unsmuggle_url(url, {})
108 mobj = re.match(self._VALID_URL, url)
109 resource_id = mobj.group('id')
110 query = mobj.group('query')
111
112 webpage, urlh = self._download_webpage_handle(url, resource_id) # XXX: add UrlReferrer?
113 redirect_url = compat_str(urlh.geturl())
114
115 # XXX: might have also extracted UrlReferrer and QueryString from the html
116 service_path = compat_urlparse.urljoin(redirect_url, self._html_search_regex(
117 r'<div[^>]+\bid=["\']ServicePath[^>]+>(.+?)</div>', webpage, resource_id,
118 default='/Mediasite/PlayerService/PlayerService.svc/json'))
119
120 player_options = self._download_json(
121 '%s/GetPlayerOptions' % service_path, resource_id,
122 headers={
123 'Content-type': 'application/json; charset=utf-8',
124 'X-Requested-With': 'XMLHttpRequest',
125 },
126 data=json.dumps({
127 'getPlayerOptionsRequest': {
128 'ResourceId': resource_id,
129 'QueryString': query,
130 'UrlReferrer': data.get('UrlReferrer', ''),
131 'UseScreenReader': False,
132 }
133 }).encode('utf-8'))['d']
134
135 presentation = player_options['Presentation']
136 title = presentation['Title']
137
138 if presentation is None:
139 raise ExtractorError(
140 'Mediasite says: %s' % player_options['PlayerPresentationStatusMessage'],
141 expected=True)
142
143 thumbnails = []
144 formats = []
145 for snum, Stream in enumerate(presentation['Streams']):
146 stream_type = Stream.get('StreamType')
147 if stream_type is None:
148 continue
149
150 video_urls = Stream.get('VideoUrls')
151 if not isinstance(video_urls, list):
152 video_urls = []
153
154 stream_id = self._STREAM_TYPES.get(
155 stream_type, 'type%u' % stream_type)
156
157 stream_formats = []
158 for unum, VideoUrl in enumerate(video_urls):
159 video_url = VideoUrl.get('Location')
160 if not video_url or not isinstance(video_url, compat_str):
161 continue
162 # XXX: if Stream.get('CanChangeScheme', False), switch scheme to HTTP/HTTPS
163
164 media_type = VideoUrl.get('MediaType')
165 if media_type == 'SS':
166 stream_formats.extend(self._extract_ism_formats(
167 video_url, resource_id,
168 ism_id='%s-%u.%u' % (stream_id, snum, unum),
169 fatal=False))
170 elif media_type == 'Dash':
171 stream_formats.extend(self._extract_mpd_formats(
172 video_url, resource_id,
173 mpd_id='%s-%u.%u' % (stream_id, snum, unum),
174 fatal=False))
175 else:
176 stream_formats.append({
177 'format_id': '%s-%u.%u' % (stream_id, snum, unum),
178 'url': video_url,
179 'ext': mimetype2ext(VideoUrl.get('MimeType')),
180 })
181
182 # TODO: if Stream['HasSlideContent']:
183 # synthesise an MJPEG video stream '%s-%u.slides' % (stream_type, snum)
184 # from Stream['Slides']
185 # this will require writing a custom downloader...
186
187 # disprefer 'secondary' streams
188 if stream_type != 0:
189 for fmt in stream_formats:
190 fmt['preference'] = -1
191
192 thumbnail_url = Stream.get('ThumbnailUrl')
193 if thumbnail_url:
194 thumbnails.append({
195 'id': '%s-%u' % (stream_id, snum),
196 'url': urljoin(redirect_url, thumbnail_url),
197 'preference': -1 if stream_type != 0 else 0,
198 })
199 formats.extend(stream_formats)
200
201 self._sort_formats(formats)
202
203 # XXX: Presentation['Presenters']
204 # XXX: Presentation['Transcript']
205
206 return {
207 'id': resource_id,
208 'title': title,
209 'description': presentation.get('Description'),
210 'duration': float_or_none(presentation.get('Duration'), 1000),
211 'timestamp': float_or_none(presentation.get('UnixTime'), 1000),
212 'formats': formats,
213 'thumbnails': thumbnails,
214 }