commit aa7e974a2a61a20e017b52a3a9ab1fb43cf8cd13
parent 9aac22c195cf41ff46a644bd027481629d0e6d06
Author: Remita Amine <remitamine@gmail.com>
Date:   Mon, 29 Oct 2018 19:28:09 +0100

[linkedin:learning] Add new extractor(closes #13545)

Diffstat:
Myoutube_dl/extractor/extractors.py | 4++++
Ayoutube_dl/extractor/linkedin.py | 175+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 179 insertions(+), 0 deletions(-)

diff --git a/youtube_dl/extractor/extractors.py b/youtube_dl/extractor/extractors.py @@ -572,6 +572,10 @@ from .limelight import ( LimelightChannelListIE, ) from .line import LineTVIE +from .linkedin import ( + LinkedInLearningIE, + LinkedInLearningCourseIE, +) from .litv import LiTVIE from .liveleak import ( LiveLeakIE, diff --git a/youtube_dl/extractor/linkedin.py b/youtube_dl/extractor/linkedin.py @@ -0,0 +1,175 @@ +# coding: utf-8 +from __future__ import unicode_literals + +import re + +from .common import InfoExtractor +from ..utils import ( + ExtractorError, + float_or_none, + int_or_none, + urlencode_postdata, +) + + +class LinkedInLearningBaseIE(InfoExtractor): + _NETRC_MACHINE = 'linkedin' + + def _call_api(self, course_slug, fields, video_slug=None, resolution=None): + query = { + 'courseSlug': course_slug, + 'fields': fields, + 'q': 'slugs', + } + sub = '' + if video_slug: + query.update({ + 'videoSlug': video_slug, + 'resolution': '_%s' % resolution, + }) + sub = ' %dp' % resolution + api_url = 'https://www.linkedin.com/learning-api/detailedCourses' + return self._download_json( + api_url, video_slug, 'Downloading%s JSON metadata' % sub, headers={ + 'Csrf-Token': self._get_cookies(api_url)['JSESSIONID'].value, + }, query=query)['elements'][0] + + def _get_video_id(self, urn, course_slug, video_slug): + if urn: + mobj = re.search(r'urn:li:lyndaCourse:\d+,(\d+)', urn) + if mobj: + return mobj.group(1) + return '%s/%s' % (course_slug, video_slug) + + def _real_initialize(self): + email, password = self._get_login_info() + if email is None: + return + + login_page = self._download_webpage( + 'https://www.linkedin.com/uas/login?trk=learning', + None, 'Downloading login page') + action_url = self._search_regex( + r'<form[^>]+action=(["\'])(?P<url>.+?)\1', login_page, 'post url', + default='https://www.linkedin.com/uas/login-submit', group='url') + data = self._hidden_inputs(login_page) + data.update({ + 'session_key': email, + 'session_password': password, + }) + login_submit_page = self._download_webpage( + action_url, None, 'Logging in', + data=urlencode_postdata(data)) + error = self._search_regex( + r'<span[^>]+class="error"[^>]*>\s*(.+?)\s*</span>', + login_submit_page, 'error', default=None) + if error: + raise ExtractorError(error, expected=True) + + +class LinkedInLearningIE(LinkedInLearningBaseIE): + IE_NAME = 'linkedin:learning' + _VALID_URL = r'https?://(?:www\.)?linkedin\.com/learning/(?P<course_slug>[^/]+)/(?P<id>[^/?#]+)' + _TEST = { + 'url': 'https://www.linkedin.com/learning/programming-foundations-fundamentals/welcome?autoplay=true', + 'md5': 'a1d74422ff0d5e66a792deb996693167', + 'info_dict': { + 'id': '90426', + 'ext': 'mp4', + 'title': 'Welcome', + 'timestamp': 1430396150.82, + 'upload_date': '20150430', + }, + } + + def _real_extract(self, url): + course_slug, video_slug = re.match(self._VALID_URL, url).groups() + + video_data = None + formats = [] + for width, height in ((640, 360), (960, 540), (1280, 720)): + video_data = self._call_api( + course_slug, 'selectedVideo', video_slug, height)['selectedVideo'] + + video_url_data = video_data.get('url') or {} + progressive_url = video_url_data.get('progressiveUrl') + if progressive_url: + formats.append({ + 'format_id': 'progressive-%dp' % height, + 'url': progressive_url, + 'height': height, + 'width': width, + 'source_preference': 1, + }) + + title = video_data['title'] + + audio_url = video_data.get('audio', {}).get('progressiveUrl') + if audio_url: + formats.append({ + 'abr': 64, + 'ext': 'm4a', + 'format_id': 'audio', + 'url': audio_url, + 'vcodec': 'none', + }) + + streaming_url = video_url_data.get('streamingUrl') + if streaming_url: + formats.extend(self._extract_m3u8_formats( + streaming_url, video_slug, 'mp4', + 'm3u8_native', m3u8_id='hls', fatal=False)) + + self._sort_formats(formats, ('width', 'height', 'source_preference', 'tbr', 'abr')) + + return { + 'id': self._get_video_id(video_data.get('urn'), course_slug, video_slug), + 'title': title, + 'formats': formats, + 'thumbnail': video_data.get('defaultThumbnail'), + 'timestamp': float_or_none(video_data.get('publishedOn'), 1000), + 'duration': int_or_none(video_data.get('durationInSeconds')), + } + + +class LinkedInLearningCourseIE(LinkedInLearningBaseIE): + IE_NAME = 'linkedin:learning:course' + _VALID_URL = r'https?://(?:www\.)?linkedin\.com/learning/(?P<id>[^/?#]+)' + _TEST = { + 'url': 'https://www.linkedin.com/learning/programming-foundations-fundamentals', + 'info_dict': { + 'id': 'programming-foundations-fundamentals', + 'title': 'Programming Foundations: Fundamentals', + 'description': 'md5:76e580b017694eb89dc8e8923fff5c86', + }, + 'playlist_mincount': 61, + } + + @classmethod + def suitable(cls, url): + return False if LinkedInLearningIE.suitable(url) else super(LinkedInLearningCourseIE, cls).suitable(url) + + def _real_extract(self, url): + course_slug = self._match_id(url) + course_data = self._call_api(course_slug, 'chapters,description,title') + + entries = [] + for chapter in course_data.get('chapters', []): + chapter_title = chapter.get('title') + for video in chapter.get('videos', []): + video_slug = video.get('slug') + if not video_slug: + continue + entries.append({ + '_type': 'url', + 'id': self._get_video_id(video.get('urn'), course_slug, video_slug), + 'title': video.get('title'), + 'url': 'https://www.linkedin.com/learning/%s/%s' % (course_slug, video_slug), + 'chapter': chapter_title, + 'ie_key': LinkedInLearningIE.ie_key(), + }) + + return self.playlist_result( + entries, course_slug, + course_data.get('title'), + course_data.get('description'))