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[linuxacademy] Fix authentication and extraction (closes #21129, closes #26223, closes #27402)

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pull/27433/head
Sergey M․ 3 years ago
parent 92d135921f
commit f70c263ce5
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GPG Key ID: 2C393E0F18A9236D
1 changed files with 100 additions and 30 deletions
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130
youtube_dl/extractor/linuxacademy.py
Unescape Escape View File

@ -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'<a[^>]+\bhref=["\'](/cp/courses/lesson/course/\d+/lesson/\d+/module/\d+)',
webpage))]
title = unescapeHTML(self._html_search_regex(
(r'class=["\']course-title["\'][^>]*>(?P<value>[^<]+)',
r'var\s+title\s*=\s*(["\'])(?P<value>(?:(?!\1).)+)\1'),
webpage, 'title', default=None, group='value'))
description = unescapeHTML(self._html_search_regex(
r'var\s+description\s*=\s*(["\'])(?P<value>(?:(?!\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<value>[^<]+)',
r'lessonName\s*=\s*(["\'])(?P<value>(?:(?!\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<value>[^<]+)',
r'lessonName\s*=\s*(["\'])(?P<value>(?:(?!\1).)+)\1'), webpage,
'title', group='value')
return info

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