From f70c263ce59f9ca5b9fb00cbfb356d1e31906fe7 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Sergey=20M=E2=80=A4?= Date: Sun, 13 Dec 2020 16:52:36 +0700 Subject: [PATCH] [linuxacademy] Fix authentication and extraction (closes #21129, closes #26223, closes #27402) --- youtube_dl/extractor/linuxacademy.py | 130 ++++++++++++++++++++------- 1 file changed, 100 insertions(+), 30 deletions(-) diff --git a/youtube_dl/extractor/linuxacademy.py b/youtube_dl/extractor/linuxacademy.py index 23ca965d9..7ec4a6557 100644 --- a/youtube_dl/extractor/linuxacademy.py +++ b/youtube_dl/extractor/linuxacademy.py @@ -8,11 +8,15 @@ from .common import InfoExtractor from ..compat import ( compat_b64decode, compat_HTTPError, + compat_str, ) from ..utils import ( + clean_html, ExtractorError, - orderedSet, - unescapeHTML, + js_to_json, + parse_duration, + try_get, + unified_timestamp, urlencode_postdata, urljoin, ) @@ -28,11 +32,15 @@ class LinuxAcademyIE(InfoExtractor): ) ''' _TESTS = [{ - 'url': 'https://linuxacademy.com/cp/courses/lesson/course/1498/lesson/2/module/154', + 'url': 'https://linuxacademy.com/cp/courses/lesson/course/7971/lesson/2/module/675', 'info_dict': { - 'id': '1498-2', + 'id': '7971-2', 'ext': 'mp4', - 'title': "Introduction to the Practitioner's Brief", + 'title': 'What Is Data Science', + 'description': 'md5:c574a3c20607144fb36cb65bdde76c99', + 'timestamp': 1607387907, + 'upload_date': '20201208', + 'duration': 304, }, 'params': { 'skip_download': True, @@ -46,7 +54,8 @@ class LinuxAcademyIE(InfoExtractor): 'info_dict': { 'id': '154', 'title': 'AWS Certified Cloud Practitioner', - 'description': 'md5:039db7e60e4aac9cf43630e0a75fa834', + 'description': 'md5:a68a299ca9bb98d41cca5abc4d4ce22c', + 'duration': 28835, }, 'playlist_count': 41, 'skip': 'Requires Linux Academy account credentials', @@ -74,6 +83,7 @@ class LinuxAcademyIE(InfoExtractor): self._AUTHORIZE_URL, None, 'Downloading authorize page', query={ 'client_id': self._CLIENT_ID, 'response_type': 'token id_token', + 'response_mode': 'web_message', 'redirect_uri': self._ORIGIN_URL, 'scope': 'openid email user_impersonation profile', 'audience': self._ORIGIN_URL, @@ -129,7 +139,13 @@ class LinuxAcademyIE(InfoExtractor): access_token = self._search_regex( r'access_token=([^=&]+)', urlh.geturl(), - 'access token') + 'access token', default=None) + if not access_token: + access_token = self._parse_json( + self._search_regex( + r'authorizationResponse\s*=\s*({.+?})\s*;', callback_page, + 'authorization response'), None, + transform_source=js_to_json)['response']['access_token'] self._download_webpage( 'https://linuxacademy.com/cp/login/tokenValidateLogin/token/%s' @@ -144,30 +160,84 @@ class LinuxAcademyIE(InfoExtractor): # course path if course_id: - entries = [ - self.url_result( - urljoin(url, lesson_url), ie=LinuxAcademyIE.ie_key()) - for lesson_url in orderedSet(re.findall( - r']+\bhref=["\'](/cp/courses/lesson/course/\d+/lesson/\d+/module/\d+)', - webpage))] - title = unescapeHTML(self._html_search_regex( - (r'class=["\']course-title["\'][^>]*>(?P[^<]+)', - r'var\s+title\s*=\s*(["\'])(?P(?:(?!\1).)+)\1'), - webpage, 'title', default=None, group='value')) - description = unescapeHTML(self._html_search_regex( - r'var\s+description\s*=\s*(["\'])(?P(?:(?!\1).)+)\1', - webpage, 'description', default=None, group='value')) - return self.playlist_result(entries, course_id, title, description) + module = self._parse_json( + self._search_regex( + r'window\.module\s*=\s*({.+?})\s*;', webpage, 'module'), + item_id) + entries = [] + chapter_number = None + chapter = None + chapter_id = None + for item in module['items']: + if not isinstance(item, dict): + continue + + def type_field(key): + return (try_get(item, lambda x: x['type'][key], compat_str) or '').lower() + type_fields = (type_field('name'), type_field('slug')) + # Move to next module section + if 'section' in type_fields: + chapter = item.get('course_name') + chapter_id = item.get('course_module') + chapter_number = 1 if not chapter_number else chapter_number + 1 + continue + # Skip non-lessons + if 'lesson' not in type_fields: + continue + lesson_url = urljoin(url, item.get('url')) + if not lesson_url: + continue + title = item.get('title') or item.get('lesson_name') + description = item.get('md_desc') or clean_html(item.get('description')) or clean_html(item.get('text')) + entries.append({ + '_type': 'url_transparent', + 'url': lesson_url, + 'ie_key': LinuxAcademyIE.ie_key(), + 'title': title, + 'description': description, + 'timestamp': unified_timestamp(item.get('date')) or unified_timestamp(item.get('created_on')), + 'duration': parse_duration(item.get('duration')), + 'chapter': chapter, + 'chapter_id': chapter_id, + 'chapter_number': chapter_number, + }) + return { + '_type': 'playlist', + 'entries': entries, + 'id': course_id, + 'title': module.get('title'), + 'description': module.get('md_desc') or clean_html(module.get('desc')), + 'duration': parse_duration(module.get('duration')), + } # single video path - info = self._extract_jwplayer_data( - webpage, item_id, require_title=False, m3u8_id='hls',) - title = self._search_regex( - (r'>Lecture\s*:\s*(?P[^<]+)', - r'lessonName\s*=\s*(["\'])(?P(?:(?!\1).)+)\1'), webpage, - 'title', group='value') - info.update({ + m3u8_url = self._parse_json( + self._search_regex( + r'player\.playlist\s*=\s*(\[.+?\])\s*;', webpage, 'playlist'), + item_id)[0]['file'] + formats = self._extract_m3u8_formats( + m3u8_url, item_id, 'mp4', entry_protocol='m3u8_native', + m3u8_id='hls') + self._sort_formats(formats) + info = { 'id': item_id, - 'title': title, - }) + 'formats': formats, + } + lesson = self._parse_json( + self._search_regex( + (r'window\.lesson\s*=\s*({.+?})\s*;', + r'player\.lesson\s*=\s*({.+?})\s*;'), + webpage, 'lesson', default='{}'), item_id, fatal=False) + if lesson: + info.update({ + 'title': lesson.get('lesson_name'), + 'description': lesson.get('md_desc') or clean_html(lesson.get('desc')), + 'timestamp': unified_timestamp(lesson.get('date')) or unified_timestamp(lesson.get('created_on')), + 'duration': parse_duration(lesson.get('duration')), + }) + if not info.get('title'): + info['title'] = self._search_regex( + (r'>Lecture\s*:\s*(?P[^<]+)', + r'lessonName\s*=\s*(["\'])(?P(?:(?!\1).)+)\1'), webpage, + 'title', group='value') return info