mirror of
https://github.com/ytdl-org/youtube-dl.git
synced 2024-11-05 09:01:21 +00:00
243 lines
9.3 KiB
Python
243 lines
9.3 KiB
Python
from __future__ import unicode_literals
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import json
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import random
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import re
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from .common import InfoExtractor
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from ..compat import (
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compat_b64decode,
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compat_HTTPError,
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compat_str,
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)
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from ..utils import (
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clean_html,
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ExtractorError,
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js_to_json,
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parse_duration,
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try_get,
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unified_timestamp,
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urlencode_postdata,
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urljoin,
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)
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class LinuxAcademyIE(InfoExtractor):
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_VALID_URL = r'''(?x)
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https?://
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(?:www\.)?linuxacademy\.com/cp/
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(?:
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courses/lesson/course/(?P<chapter_id>\d+)/lesson/(?P<lesson_id>\d+)|
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modules/view/id/(?P<course_id>\d+)
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)
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'''
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_TESTS = [{
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'url': 'https://linuxacademy.com/cp/courses/lesson/course/7971/lesson/2/module/675',
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'info_dict': {
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'id': '7971-2',
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'ext': 'mp4',
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'title': 'What Is Data Science',
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'description': 'md5:c574a3c20607144fb36cb65bdde76c99',
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'timestamp': 1607387907,
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'upload_date': '20201208',
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'duration': 304,
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},
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'params': {
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'skip_download': True,
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},
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'skip': 'Requires Linux Academy account credentials',
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}, {
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'url': 'https://linuxacademy.com/cp/courses/lesson/course/1498/lesson/2',
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'only_matching': True,
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}, {
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'url': 'https://linuxacademy.com/cp/modules/view/id/154',
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'info_dict': {
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'id': '154',
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'title': 'AWS Certified Cloud Practitioner',
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'description': 'md5:a68a299ca9bb98d41cca5abc4d4ce22c',
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'duration': 28835,
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},
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'playlist_count': 41,
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'skip': 'Requires Linux Academy account credentials',
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}]
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_AUTHORIZE_URL = 'https://login.linuxacademy.com/authorize'
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_ORIGIN_URL = 'https://linuxacademy.com'
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_CLIENT_ID = 'KaWxNn1C2Gc7n83W9OFeXltd8Utb5vvx'
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_NETRC_MACHINE = 'linuxacademy'
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def _real_initialize(self):
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self._login()
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def _login(self):
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username, password = self._get_login_info()
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if username is None:
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return
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def random_string():
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return ''.join([
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random.choice('0123456789ABCDEFGHIJKLMNOPQRSTUVXYZabcdefghijklmnopqrstuvwxyz-._~')
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for _ in range(32)])
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webpage, urlh = self._download_webpage_handle(
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self._AUTHORIZE_URL, None, 'Downloading authorize page', query={
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'client_id': self._CLIENT_ID,
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'response_type': 'token id_token',
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'response_mode': 'web_message',
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'redirect_uri': self._ORIGIN_URL,
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'scope': 'openid email user_impersonation profile',
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'audience': self._ORIGIN_URL,
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'state': random_string(),
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'nonce': random_string(),
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})
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login_data = self._parse_json(
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self._search_regex(
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r'atob\(\s*(["\'])(?P<value>(?:(?!\1).)+)\1', webpage,
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'login info', group='value'), None,
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transform_source=lambda x: compat_b64decode(x).decode('utf-8')
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)['extraParams']
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login_data.update({
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'client_id': self._CLIENT_ID,
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'redirect_uri': self._ORIGIN_URL,
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'tenant': 'lacausers',
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'connection': 'Username-Password-Authentication',
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'username': username,
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'password': password,
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'sso': 'true',
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})
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login_state_url = urlh.geturl()
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try:
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login_page = self._download_webpage(
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'https://login.linuxacademy.com/usernamepassword/login', None,
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'Downloading login page', data=json.dumps(login_data).encode(),
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headers={
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'Content-Type': 'application/json',
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'Origin': 'https://login.linuxacademy.com',
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'Referer': login_state_url,
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})
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except ExtractorError as e:
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if isinstance(e.cause, compat_HTTPError) and e.cause.code == 401:
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error = self._parse_json(e.cause.read(), None)
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message = error.get('description') or error['code']
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raise ExtractorError(
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'%s said: %s' % (self.IE_NAME, message), expected=True)
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raise
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callback_page, urlh = self._download_webpage_handle(
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'https://login.linuxacademy.com/login/callback', None,
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'Downloading callback page',
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data=urlencode_postdata(self._hidden_inputs(login_page)),
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headers={
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'Content-Type': 'application/x-www-form-urlencoded',
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'Origin': 'https://login.linuxacademy.com',
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'Referer': login_state_url,
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})
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access_token = self._search_regex(
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r'access_token=([^=&]+)', urlh.geturl(),
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'access token', default=None)
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if not access_token:
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access_token = self._parse_json(
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self._search_regex(
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r'authorizationResponse\s*=\s*({.+?})\s*;', callback_page,
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'authorization response'), None,
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transform_source=js_to_json)['response']['access_token']
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self._download_webpage(
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'https://linuxacademy.com/cp/login/tokenValidateLogin/token/%s'
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% access_token, None, 'Downloading token validation page')
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def _real_extract(self, url):
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mobj = re.match(self._VALID_URL, url)
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chapter_id, lecture_id, course_id = mobj.group('chapter_id', 'lesson_id', 'course_id')
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item_id = course_id if course_id else '%s-%s' % (chapter_id, lecture_id)
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webpage = self._download_webpage(url, item_id)
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# course path
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if course_id:
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module = self._parse_json(
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self._search_regex(
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r'window\.module\s*=\s*({.+?})\s*;', webpage, 'module'),
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item_id)
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entries = []
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chapter_number = None
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chapter = None
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chapter_id = None
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for item in module['items']:
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if not isinstance(item, dict):
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continue
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def type_field(key):
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return (try_get(item, lambda x: x['type'][key], compat_str) or '').lower()
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type_fields = (type_field('name'), type_field('slug'))
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# Move to next module section
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if 'section' in type_fields:
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chapter = item.get('course_name')
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chapter_id = item.get('course_module')
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chapter_number = 1 if not chapter_number else chapter_number + 1
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continue
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# Skip non-lessons
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if 'lesson' not in type_fields:
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continue
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lesson_url = urljoin(url, item.get('url'))
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if not lesson_url:
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continue
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title = item.get('title') or item.get('lesson_name')
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description = item.get('md_desc') or clean_html(item.get('description')) or clean_html(item.get('text'))
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entries.append({
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'_type': 'url_transparent',
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'url': lesson_url,
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'ie_key': LinuxAcademyIE.ie_key(),
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'title': title,
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'description': description,
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'timestamp': unified_timestamp(item.get('date')) or unified_timestamp(item.get('created_on')),
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'duration': parse_duration(item.get('duration')),
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'chapter': chapter,
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'chapter_id': chapter_id,
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'chapter_number': chapter_number,
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})
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return {
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'_type': 'playlist',
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'entries': entries,
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'id': course_id,
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'title': module.get('title'),
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'description': module.get('md_desc') or clean_html(module.get('desc')),
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'duration': parse_duration(module.get('duration')),
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}
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# single video path
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m3u8_url = self._parse_json(
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self._search_regex(
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r'player\.playlist\s*=\s*(\[.+?\])\s*;', webpage, 'playlist'),
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item_id)[0]['file']
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formats = self._extract_m3u8_formats(
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m3u8_url, item_id, 'mp4', entry_protocol='m3u8_native',
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m3u8_id='hls')
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self._sort_formats(formats)
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info = {
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'id': item_id,
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'formats': formats,
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}
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lesson = self._parse_json(
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self._search_regex(
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(r'window\.lesson\s*=\s*({.+?})\s*;',
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r'player\.lesson\s*=\s*({.+?})\s*;'),
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webpage, 'lesson', default='{}'), item_id, fatal=False)
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if lesson:
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info.update({
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'title': lesson.get('lesson_name'),
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'description': lesson.get('md_desc') or clean_html(lesson.get('desc')),
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'timestamp': unified_timestamp(lesson.get('date')) or unified_timestamp(lesson.get('created_on')),
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'duration': parse_duration(lesson.get('duration')),
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})
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if not info.get('title'):
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info['title'] = self._search_regex(
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(r'>Lecture\s*:\s*(?P<value>[^<]+)',
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r'lessonName\s*=\s*(["\'])(?P<value>(?:(?!\1).)+)\1'), webpage,
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'title', group='value')
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return info
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