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from __future__ import unicode_literals
import json
import random
import re
from .common import InfoExtractor
from ..compat import (
compat_b64decode,
compat_HTTPError,
)
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 = 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=([^=&]+)', 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
|
