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[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 url_or_none,
19 urljoin,
20 )
21
22
23 class MediasiteIE(InfoExtractor):
24 _VALID_URL = r'(?xi)https?://[^/]+/Mediasite/Play/(?P<id>[0-9a-f]{32,34})(?P<query>\?[^#]+|)'
25 _TESTS = [
26 {
27 'url': 'https://hitsmediaweb.h-its.org/mediasite/Play/2db6c271681e4f199af3c60d1f82869b1d',
28 'info_dict': {
29 'id': '2db6c271681e4f199af3c60d1f82869b1d',
30 'ext': 'mp4',
31 'title': 'Lecture: Tuesday, September 20, 2016 - Sir Andrew Wiles',
32 '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.',
33 'timestamp': 1474268400.0,
34 'upload_date': '20160919',
35 },
36 },
37 {
38 'url': 'http://mediasite.uib.no/Mediasite/Play/90bb363295d945d6b548c867d01181361d?catalog=a452b7df-9ae1-46b7-a3ba-aceeb285f3eb',
39 'info_dict': {
40 'id': '90bb363295d945d6b548c867d01181361d',
41 'ext': 'mp4',
42 'upload_date': '20150429',
43 'title': '5) IT-forum 2015-Dag 1 - Dungbeetle - How and why Rain created a tiny bug tracker for Unity',
44 'timestamp': 1430311380.0,
45 },
46 },
47 {
48 'url': 'https://collegerama.tudelft.nl/Mediasite/Play/585a43626e544bdd97aeb71a0ec907a01d',
49 'md5': '481fda1c11f67588c0d9d8fbdced4e39',
50 'info_dict': {
51 'id': '585a43626e544bdd97aeb71a0ec907a01d',
52 'ext': 'mp4',
53 'title': 'Een nieuwe wereld: waarden, bewustzijn en techniek van de mensheid 2.0.',
54 'description': '',
55 'thumbnail': r're:^https?://.*\.jpg(?:\?.*)?$',
56 'duration': 7713.088,
57 'timestamp': 1413309600,
58 'upload_date': '20141014',
59 },
60 },
61 {
62 'url': 'https://collegerama.tudelft.nl/Mediasite/Play/86a9ea9f53e149079fbdb4202b521ed21d?catalog=fd32fd35-6c99-466c-89d4-cd3c431bc8a4',
63 'md5': 'ef1fdded95bdf19b12c5999949419c92',
64 'info_dict': {
65 'id': '86a9ea9f53e149079fbdb4202b521ed21d',
66 'ext': 'wmv',
67 'title': '64ste Vakantiecursus: Afvalwater',
68 'description': 'md5:7fd774865cc69d972f542b157c328305',
69 'thumbnail': r're:^https?://.*\.jpg(?:\?.*?)?$',
70 'duration': 10853,
71 'timestamp': 1326446400,
72 'upload_date': '20120113',
73 },
74 },
75 {
76 'url': 'http://digitalops.sandia.gov/Mediasite/Play/24aace4429fc450fb5b38cdbf424a66e1d',
77 'md5': '9422edc9b9a60151727e4b6d8bef393d',
78 'info_dict': {
79 'id': '24aace4429fc450fb5b38cdbf424a66e1d',
80 'ext': 'mp4',
81 'title': 'Xyce Software Training - Section 1',
82 'description': r're:(?s)SAND Number: SAND 2013-7800.{200,}',
83 'upload_date': '20120409',
84 'timestamp': 1333983600,
85 'duration': 7794,
86 }
87 }
88 ]
89
90 # look in Mediasite.Core.js (Mediasite.ContentStreamType[*])
91 _STREAM_TYPES = {
92 0: 'video1', # the main video
93 2: 'slide',
94 3: 'presentation',
95 4: 'video2', # screencast?
96 5: 'video3',
97 }
98
99 @staticmethod
100 def _extract_urls(webpage):
101 return [
102 unescapeHTML(mobj.group('url'))
103 for mobj in re.finditer(
104 r'(?xi)<iframe\b[^>]+\bsrc=(["\'])(?P<url>(?:(?:https?:)?//[^/]+)?/Mediasite/Play/[0-9a-f]{32,34}(?:\?.*?)?)\1',
105 webpage)]
106
107 def _real_extract(self, url):
108 url, data = unsmuggle_url(url, {})
109 mobj = re.match(self._VALID_URL, url)
110 resource_id = mobj.group('id')
111 query = mobj.group('query')
112
113 webpage, urlh = self._download_webpage_handle(url, resource_id) # XXX: add UrlReferrer?
114 redirect_url = compat_str(urlh.geturl())
115
116 # XXX: might have also extracted UrlReferrer and QueryString from the html
117 service_path = compat_urlparse.urljoin(redirect_url, self._html_search_regex(
118 r'<div[^>]+\bid=["\']ServicePath[^>]+>(.+?)</div>', webpage, resource_id,
119 default='/Mediasite/PlayerService/PlayerService.svc/json'))
120
121 player_options = self._download_json(
122 '%s/GetPlayerOptions' % service_path, resource_id,
123 headers={
124 'Content-type': 'application/json; charset=utf-8',
125 'X-Requested-With': 'XMLHttpRequest',
126 },
127 data=json.dumps({
128 'getPlayerOptionsRequest': {
129 'ResourceId': resource_id,
130 'QueryString': query,
131 'UrlReferrer': data.get('UrlReferrer', ''),
132 'UseScreenReader': False,
133 }
134 }).encode('utf-8'))['d']
135
136 presentation = player_options['Presentation']
137 title = presentation['Title']
138
139 if presentation is None:
140 raise ExtractorError(
141 'Mediasite says: %s' % player_options['PlayerPresentationStatusMessage'],
142 expected=True)
143
144 thumbnails = []
145 formats = []
146 for snum, Stream in enumerate(presentation['Streams']):
147 stream_type = Stream.get('StreamType')
148 if stream_type is None:
149 continue
150
151 video_urls = Stream.get('VideoUrls')
152 if not isinstance(video_urls, list):
153 video_urls = []
154
155 stream_id = self._STREAM_TYPES.get(
156 stream_type, 'type%u' % stream_type)
157
158 stream_formats = []
159 for unum, VideoUrl in enumerate(video_urls):
160 video_url = url_or_none(VideoUrl.get('Location'))
161 if not video_url:
162 continue
163 # XXX: if Stream.get('CanChangeScheme', False), switch scheme to HTTP/HTTPS
164
165 media_type = VideoUrl.get('MediaType')
166 if media_type == 'SS':
167 stream_formats.extend(self._extract_ism_formats(
168 video_url, resource_id,
169 ism_id='%s-%u.%u' % (stream_id, snum, unum),
170 fatal=False))
171 elif media_type == 'Dash':
172 stream_formats.extend(self._extract_mpd_formats(
173 video_url, resource_id,
174 mpd_id='%s-%u.%u' % (stream_id, snum, unum),
175 fatal=False))
176 else:
177 stream_formats.append({
178 'format_id': '%s-%u.%u' % (stream_id, snum, unum),
179 'url': video_url,
180 'ext': mimetype2ext(VideoUrl.get('MimeType')),
181 })
182
183 # TODO: if Stream['HasSlideContent']:
184 # synthesise an MJPEG video stream '%s-%u.slides' % (stream_type, snum)
185 # from Stream['Slides']
186 # this will require writing a custom downloader...
187
188 # disprefer 'secondary' streams
189 if stream_type != 0:
190 for fmt in stream_formats:
191 fmt['preference'] = -1
192
193 thumbnail_url = Stream.get('ThumbnailUrl')
194 if thumbnail_url:
195 thumbnails.append({
196 'id': '%s-%u' % (stream_id, snum),
197 'url': urljoin(redirect_url, thumbnail_url),
198 'preference': -1 if stream_type != 0 else 0,
199 })
200 formats.extend(stream_formats)
201
202 self._sort_formats(formats)
203
204 # XXX: Presentation['Presenters']
205 # XXX: Presentation['Transcript']
206
207 return {
208 'id': resource_id,
209 'title': title,
210 'description': presentation.get('Description'),
211 'duration': float_or_none(presentation.get('Duration'), 1000),
212 'timestamp': float_or_none(presentation.get('UnixTime'), 1000),
213 'formats': formats,
214 'thumbnails': thumbnails,
215 }