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[youtubedl] / youtube_dl / extractor / linkedin.py
1 # coding: utf-8
2 from __future__ import unicode_literals
3
4 import re
5
6 from .common import InfoExtractor
7 from ..utils import (
8 ExtractorError,
9 float_or_none,
10 int_or_none,
11 urlencode_postdata,
12 urljoin,
13 )
14
15
16 class LinkedInLearningBaseIE(InfoExtractor):
17 _NETRC_MACHINE = 'linkedin'
18 _LOGIN_URL = 'https://www.linkedin.com/uas/login?trk=learning'
19
20 def _call_api(self, course_slug, fields, video_slug=None, resolution=None):
21 query = {
22 'courseSlug': course_slug,
23 'fields': fields,
24 'q': 'slugs',
25 }
26 sub = ''
27 if video_slug:
28 query.update({
29 'videoSlug': video_slug,
30 'resolution': '_%s' % resolution,
31 })
32 sub = ' %dp' % resolution
33 api_url = 'https://www.linkedin.com/learning-api/detailedCourses'
34 return self._download_json(
35 api_url, video_slug, 'Downloading%s JSON metadata' % sub, headers={
36 'Csrf-Token': self._get_cookies(api_url)['JSESSIONID'].value,
37 }, query=query)['elements'][0]
38
39 def _get_urn_id(self, video_data):
40 urn = video_data.get('urn')
41 if urn:
42 mobj = re.search(r'urn:li:lyndaCourse:\d+,(\d+)', urn)
43 if mobj:
44 return mobj.group(1)
45
46 def _get_video_id(self, video_data, course_slug, video_slug):
47 return self._get_urn_id(video_data) or '%s/%s' % (course_slug, video_slug)
48
49 def _real_initialize(self):
50 email, password = self._get_login_info()
51 if email is None:
52 return
53
54 login_page = self._download_webpage(
55 self._LOGIN_URL, None, 'Downloading login page')
56 action_url = urljoin(self._LOGIN_URL, self._search_regex(
57 r'<form[^>]+action=(["\'])(?P<url>.+?)\1', login_page, 'post url',
58 default='https://www.linkedin.com/uas/login-submit', group='url'))
59 data = self._hidden_inputs(login_page)
60 data.update({
61 'session_key': email,
62 'session_password': password,
63 })
64 login_submit_page = self._download_webpage(
65 action_url, None, 'Logging in',
66 data=urlencode_postdata(data))
67 error = self._search_regex(
68 r'<span[^>]+class="error"[^>]*>\s*(.+?)\s*</span>',
69 login_submit_page, 'error', default=None)
70 if error:
71 raise ExtractorError(error, expected=True)
72
73
74 class LinkedInLearningIE(LinkedInLearningBaseIE):
75 IE_NAME = 'linkedin:learning'
76 _VALID_URL = r'https?://(?:www\.)?linkedin\.com/learning/(?P<course_slug>[^/]+)/(?P<id>[^/?#]+)'
77 _TEST = {
78 'url': 'https://www.linkedin.com/learning/programming-foundations-fundamentals/welcome?autoplay=true',
79 'md5': 'a1d74422ff0d5e66a792deb996693167',
80 'info_dict': {
81 'id': '90426',
82 'ext': 'mp4',
83 'title': 'Welcome',
84 'timestamp': 1430396150.82,
85 'upload_date': '20150430',
86 },
87 }
88
89 def _real_extract(self, url):
90 course_slug, video_slug = re.match(self._VALID_URL, url).groups()
91
92 video_data = None
93 formats = []
94 for width, height in ((640, 360), (960, 540), (1280, 720)):
95 video_data = self._call_api(
96 course_slug, 'selectedVideo', video_slug, height)['selectedVideo']
97
98 video_url_data = video_data.get('url') or {}
99 progressive_url = video_url_data.get('progressiveUrl')
100 if progressive_url:
101 formats.append({
102 'format_id': 'progressive-%dp' % height,
103 'url': progressive_url,
104 'height': height,
105 'width': width,
106 'source_preference': 1,
107 })
108
109 title = video_data['title']
110
111 audio_url = video_data.get('audio', {}).get('progressiveUrl')
112 if audio_url:
113 formats.append({
114 'abr': 64,
115 'ext': 'm4a',
116 'format_id': 'audio',
117 'url': audio_url,
118 'vcodec': 'none',
119 })
120
121 streaming_url = video_url_data.get('streamingUrl')
122 if streaming_url:
123 formats.extend(self._extract_m3u8_formats(
124 streaming_url, video_slug, 'mp4',
125 'm3u8_native', m3u8_id='hls', fatal=False))
126
127 self._sort_formats(formats, ('width', 'height', 'source_preference', 'tbr', 'abr'))
128
129 return {
130 'id': self._get_video_id(video_data, course_slug, video_slug),
131 'title': title,
132 'formats': formats,
133 'thumbnail': video_data.get('defaultThumbnail'),
134 'timestamp': float_or_none(video_data.get('publishedOn'), 1000),
135 'duration': int_or_none(video_data.get('durationInSeconds')),
136 }
137
138
139 class LinkedInLearningCourseIE(LinkedInLearningBaseIE):
140 IE_NAME = 'linkedin:learning:course'
141 _VALID_URL = r'https?://(?:www\.)?linkedin\.com/learning/(?P<id>[^/?#]+)'
142 _TEST = {
143 'url': 'https://www.linkedin.com/learning/programming-foundations-fundamentals',
144 'info_dict': {
145 'id': 'programming-foundations-fundamentals',
146 'title': 'Programming Foundations: Fundamentals',
147 'description': 'md5:76e580b017694eb89dc8e8923fff5c86',
148 },
149 'playlist_mincount': 61,
150 }
151
152 @classmethod
153 def suitable(cls, url):
154 return False if LinkedInLearningIE.suitable(url) else super(LinkedInLearningCourseIE, cls).suitable(url)
155
156 def _real_extract(self, url):
157 course_slug = self._match_id(url)
158 course_data = self._call_api(course_slug, 'chapters,description,title')
159
160 entries = []
161 for chapter_number, chapter in enumerate(course_data.get('chapters', []), 1):
162 chapter_title = chapter.get('title')
163 chapter_id = self._get_urn_id(chapter)
164 for video in chapter.get('videos', []):
165 video_slug = video.get('slug')
166 if not video_slug:
167 continue
168 entries.append({
169 '_type': 'url_transparent',
170 'id': self._get_video_id(video, course_slug, video_slug),
171 'title': video.get('title'),
172 'url': 'https://www.linkedin.com/learning/%s/%s' % (course_slug, video_slug),
173 'chapter': chapter_title,
174 'chapter_number': chapter_number,
175 'chapter_id': chapter_id,
176 'ie_key': LinkedInLearningIE.ie_key(),
177 })
178
179 return self.playlist_result(
180 entries, course_slug,
181 course_data.get('title'),
182 course_data.get('description'))