commit 659e93fcf5c0480ac461cda412335cecf6a5595f
parent c9a0ea6e51eff28b9a383a47215870fd5875fc3e
Author: Sergey M․ <dstftw@gmail.com>
Date: Sun, 17 Feb 2019 07:12:10 +0700
[linuxacademy] Add extractor (closes #12207)
Diffstat:
2 files changed, 175 insertions(+), 0 deletions(-)
diff --git a/youtube_dl/extractor/extractors.py b/youtube_dl/extractor/extractors.py
@@ -593,6 +593,7 @@ from .linkedin import (
LinkedInLearningIE,
LinkedInLearningCourseIE,
)
+from .linuxacademy import LinuxAcademyIE
from .litv import LiTVIE
from .liveleak import (
LiveLeakIE,
diff --git a/youtube_dl/extractor/linuxacademy.py b/youtube_dl/extractor/linuxacademy.py
@@ -0,0 +1,174 @@
+from __future__ import unicode_literals
+
+import json
+import random
+import re
+
+from .common import InfoExtractor
+from ..compat import (
+ compat_b64decode,
+ compat_HTTPError,
+ compat_str,
+)
+from ..utils import (
+ ExtractorError,
+ orderedSet,
+ unescapeHTML,
+ urlencode_postdata,
+ urljoin,
+)
+
+
+class LinuxAcademyIE(InfoExtractor):
+ _VALID_URL = r'''(?x)
+ https?://
+ (?:www\.)?linuxacademy\.com/cp/
+ (?:
+ courses/lesson/course/(?P<chapter_id>\d+)/lesson/(?P<lesson_id>\d+)|
+ modules/view/id/(?P<course_id>\d+)
+ )
+ '''
+ _TESTS = [{
+ 'url': 'https://linuxacademy.com/cp/courses/lesson/course/1498/lesson/2/module/154',
+ 'info_dict': {
+ 'id': '1498-2',
+ 'ext': 'mp4',
+ 'title': "Introduction to the Practitioner's Brief",
+ },
+ 'params': {
+ 'skip_download': True,
+ },
+ 'skip': 'Requires Linux Academy account credentials',
+ }, {
+ 'url': 'https://linuxacademy.com/cp/courses/lesson/course/1498/lesson/2',
+ 'only_matching': True,
+ }, {
+ 'url': 'https://linuxacademy.com/cp/modules/view/id/154',
+ 'info_dict': {
+ 'id': '154',
+ 'title': 'AWS Certified Cloud Practitioner',
+ 'description': 'md5:039db7e60e4aac9cf43630e0a75fa834',
+ },
+ 'playlist_count': 41,
+ 'skip': 'Requires Linux Academy account credentials',
+ }]
+
+ _AUTHORIZE_URL = 'https://login.linuxacademy.com/authorize'
+ _ORIGIN_URL = 'https://linuxacademy.com'
+ _CLIENT_ID = 'KaWxNn1C2Gc7n83W9OFeXltd8Utb5vvx'
+ _NETRC_MACHINE = 'linuxacademy'
+
+ def _real_initialize(self):
+ self._login()
+
+ def _login(self):
+ username, password = self._get_login_info()
+ if username is None:
+ return
+
+ def random_string():
+ return ''.join([
+ random.choice('0123456789ABCDEFGHIJKLMNOPQRSTUVXYZabcdefghijklmnopqrstuvwxyz-._~')
+ for _ in range(32)])
+
+ webpage, urlh = self._download_webpage_handle(
+ self._AUTHORIZE_URL, None, 'Downloading authorize page', query={
+ 'client_id': self._CLIENT_ID,
+ 'response_type': 'token id_token',
+ 'redirect_uri': self._ORIGIN_URL,
+ 'scope': 'openid email user_impersonation profile',
+ 'audience': self._ORIGIN_URL,
+ 'state': random_string(),
+ 'nonce': random_string(),
+ })
+
+ login_data = self._parse_json(
+ self._search_regex(
+ r'atob\(\s*(["\'])(?P<value>(?:(?!\1).)+)\1', webpage,
+ 'login info', group='value'), None,
+ transform_source=lambda x: compat_b64decode(x).decode('utf-8')
+ )['extraParams']
+
+ login_data.update({
+ 'client_id': self._CLIENT_ID,
+ 'redirect_uri': self._ORIGIN_URL,
+ 'tenant': 'lacausers',
+ 'connection': 'Username-Password-Authentication',
+ 'username': username,
+ 'password': password,
+ 'sso': 'true',
+ })
+
+ login_state_url = compat_str(urlh.geturl())
+
+ try:
+ login_page = self._download_webpage(
+ 'https://login.linuxacademy.com/usernamepassword/login', None,
+ 'Downloading login page', data=json.dumps(login_data).encode(),
+ headers={
+ 'Content-Type': 'application/json',
+ 'Origin': 'https://login.linuxacademy.com',
+ 'Referer': login_state_url,
+ })
+ except ExtractorError as e:
+ if isinstance(e.cause, compat_HTTPError) and e.cause.code == 401:
+ error = self._parse_json(e.cause.read(), None)
+ message = error.get('description') or error['code']
+ raise ExtractorError(
+ '%s said: %s' % (self.IE_NAME, message), expected=True)
+ raise
+
+ callback_page, urlh = self._download_webpage_handle(
+ 'https://login.linuxacademy.com/login/callback', None,
+ 'Downloading callback page',
+ data=urlencode_postdata(self._hidden_inputs(login_page)),
+ headers={
+ 'Content-Type': 'application/x-www-form-urlencoded',
+ 'Origin': 'https://login.linuxacademy.com',
+ 'Referer': login_state_url,
+ })
+
+ access_token = self._search_regex(
+ r'access_token=([^=&]+)', compat_str(urlh.geturl()),
+ 'access token')
+
+ self._download_webpage(
+ 'https://linuxacademy.com/cp/login/tokenValidateLogin/token/%s'
+ % access_token, None, 'Downloading token validation page')
+
+ def _real_extract(self, url):
+ mobj = re.match(self._VALID_URL, url)
+ chapter_id, lecture_id, course_id = mobj.group('chapter_id', 'lesson_id', 'course_id')
+ item_id = course_id if course_id else '%s-%s' % (chapter_id, lecture_id)
+
+ webpage = self._download_webpage(url, item_id)
+
+ # 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)
+
+ # 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({
+ 'id': item_id,
+ 'title': title,
+ })
+ return info
