[linkedin:learning] Add new extractor(closes #13545)
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# coding: utf-8 |
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from __future__ import unicode_literals |
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import re |
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from .common import InfoExtractor |
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from ..utils import ( |
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ExtractorError, |
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float_or_none, |
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int_or_none, |
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urlencode_postdata, |
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) |
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class LinkedInLearningBaseIE(InfoExtractor): |
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_NETRC_MACHINE = 'linkedin' |
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def _call_api(self, course_slug, fields, video_slug=None, resolution=None): |
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query = { |
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'courseSlug': course_slug, |
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'fields': fields, |
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'q': 'slugs', |
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} |
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sub = '' |
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if video_slug: |
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query.update({ |
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'videoSlug': video_slug, |
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'resolution': '_%s' % resolution, |
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}) |
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sub = ' %dp' % resolution |
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api_url = 'https://www.linkedin.com/learning-api/detailedCourses' |
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return self._download_json( |
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api_url, video_slug, 'Downloading%s JSON metadata' % sub, headers={ |
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'Csrf-Token': self._get_cookies(api_url)['JSESSIONID'].value, |
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}, query=query)['elements'][0] |
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def _get_video_id(self, urn, course_slug, video_slug): |
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if urn: |
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mobj = re.search(r'urn:li:lyndaCourse:\d+,(\d+)', urn) |
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if mobj: |
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return mobj.group(1) |
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return '%s/%s' % (course_slug, video_slug) |
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def _real_initialize(self): |
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email, password = self._get_login_info() |
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if email is None: |
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return |
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login_page = self._download_webpage( |
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'https://www.linkedin.com/uas/login?trk=learning', |
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None, 'Downloading login page') |
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action_url = self._search_regex( |
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r'<form[^>]+action=(["\'])(?P<url>.+?)\1', login_page, 'post url', |
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default='https://www.linkedin.com/uas/login-submit', group='url') |
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data = self._hidden_inputs(login_page) |
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data.update({ |
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'session_key': email, |
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'session_password': password, |
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}) |
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login_submit_page = self._download_webpage( |
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action_url, None, 'Logging in', |
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data=urlencode_postdata(data)) |
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error = self._search_regex( |
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r'<span[^>]+class="error"[^>]*>\s*(.+?)\s*</span>', |
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login_submit_page, 'error', default=None) |
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if error: |
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raise ExtractorError(error, expected=True) |
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class LinkedInLearningIE(LinkedInLearningBaseIE): |
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IE_NAME = 'linkedin:learning' |
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_VALID_URL = r'https?://(?:www\.)?linkedin\.com/learning/(?P<course_slug>[^/]+)/(?P<id>[^/?#]+)' |
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_TEST = { |
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'url': 'https://www.linkedin.com/learning/programming-foundations-fundamentals/welcome?autoplay=true', |
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'md5': 'a1d74422ff0d5e66a792deb996693167', |
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'info_dict': { |
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'id': '90426', |
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'ext': 'mp4', |
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'title': 'Welcome', |
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'timestamp': 1430396150.82, |
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'upload_date': '20150430', |
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}, |
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} |
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def _real_extract(self, url): |
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course_slug, video_slug = re.match(self._VALID_URL, url).groups() |
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video_data = None |
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formats = [] |
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for width, height in ((640, 360), (960, 540), (1280, 720)): |
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video_data = self._call_api( |
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course_slug, 'selectedVideo', video_slug, height)['selectedVideo'] |
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video_url_data = video_data.get('url') or {} |
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progressive_url = video_url_data.get('progressiveUrl') |
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if progressive_url: |
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formats.append({ |
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'format_id': 'progressive-%dp' % height, |
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'url': progressive_url, |
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'height': height, |
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'width': width, |
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'source_preference': 1, |
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}) |
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title = video_data['title'] |
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audio_url = video_data.get('audio', {}).get('progressiveUrl') |
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if audio_url: |
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formats.append({ |
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'abr': 64, |
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'ext': 'm4a', |
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'format_id': 'audio', |
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'url': audio_url, |
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'vcodec': 'none', |
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}) |
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streaming_url = video_url_data.get('streamingUrl') |
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if streaming_url: |
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formats.extend(self._extract_m3u8_formats( |
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streaming_url, video_slug, 'mp4', |
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'm3u8_native', m3u8_id='hls', fatal=False)) |
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self._sort_formats(formats, ('width', 'height', 'source_preference', 'tbr', 'abr')) |
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return { |
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'id': self._get_video_id(video_data.get('urn'), course_slug, video_slug), |
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'title': title, |
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'formats': formats, |
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'thumbnail': video_data.get('defaultThumbnail'), |
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'timestamp': float_or_none(video_data.get('publishedOn'), 1000), |
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'duration': int_or_none(video_data.get('durationInSeconds')), |
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} |
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class LinkedInLearningCourseIE(LinkedInLearningBaseIE): |
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IE_NAME = 'linkedin:learning:course' |
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_VALID_URL = r'https?://(?:www\.)?linkedin\.com/learning/(?P<id>[^/?#]+)' |
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_TEST = { |
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'url': 'https://www.linkedin.com/learning/programming-foundations-fundamentals', |
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'info_dict': { |
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'id': 'programming-foundations-fundamentals', |
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'title': 'Programming Foundations: Fundamentals', |
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'description': 'md5:76e580b017694eb89dc8e8923fff5c86', |
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}, |
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'playlist_mincount': 61, |
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} |
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@classmethod |
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def suitable(cls, url): |
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return False if LinkedInLearningIE.suitable(url) else super(LinkedInLearningCourseIE, cls).suitable(url) |
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def _real_extract(self, url): |
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course_slug = self._match_id(url) |
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course_data = self._call_api(course_slug, 'chapters,description,title') |
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entries = [] |
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for chapter in course_data.get('chapters', []): |
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chapter_title = chapter.get('title') |
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for video in chapter.get('videos', []): |
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video_slug = video.get('slug') |
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if not video_slug: |
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continue |
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entries.append({ |
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'_type': 'url', |
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'id': self._get_video_id(video.get('urn'), course_slug, video_slug), |
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'title': video.get('title'), |
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'url': 'https://www.linkedin.com/learning/%s/%s' % (course_slug, video_slug), |
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'chapter': chapter_title, |
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'ie_key': LinkedInLearningIE.ie_key(), |
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}) |
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return self.playlist_result( |
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entries, course_slug, |
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course_data.get('title'), |
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course_data.get('description')) |
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