from __future__ import unicode_literals
import re
-import json
from .common import InfoExtractor
from ..compat import (
+ compat_HTTPError,
compat_str,
- compat_urllib_parse,
- compat_urllib_request,
+ compat_urlparse,
)
from ..utils import (
ExtractorError,
int_or_none,
+ urlencode_postdata,
)
class LyndaBaseIE(InfoExtractor):
- _LOGIN_URL = 'https://www.lynda.com/login/login.aspx'
+ _SIGNIN_URL = 'https://www.lynda.com/signin'
+ _PASSWORD_URL = 'https://www.lynda.com/signin/password'
+ _USER_URL = 'https://www.lynda.com/signin/user'
_ACCOUNT_CREDENTIALS_HINT = 'Use --username and --password options to provide lynda.com account credentials.'
_NETRC_MACHINE = 'lynda'
def _real_initialize(self):
self._login()
+ @staticmethod
+ def _check_error(json_string, key_or_keys):
+ keys = [key_or_keys] if isinstance(key_or_keys, compat_str) else key_or_keys
+ for key in keys:
+ error = json_string.get(key)
+ if error:
+ raise ExtractorError('Unable to login: %s' % error, expected=True)
+
+ def _login_step(self, form_html, fallback_action_url, extra_form_data, note, referrer_url):
+ action_url = self._search_regex(
+ r'<form[^>]+action=(["\'])(?P<url>.+?)\1', form_html,
+ 'post url', default=fallback_action_url, group='url')
+
+ if not action_url.startswith('http'):
+ action_url = compat_urlparse.urljoin(self._SIGNIN_URL, action_url)
+
+ form_data = self._hidden_inputs(form_html)
+ form_data.update(extra_form_data)
+
+ try:
+ response = self._download_json(
+ action_url, None, note,
+ data=urlencode_postdata(form_data),
+ headers={
+ 'Referer': referrer_url,
+ 'X-Requested-With': 'XMLHttpRequest',
+ })
+ except ExtractorError as e:
+ if isinstance(e.cause, compat_HTTPError) and e.cause.code == 500:
+ response = self._parse_json(e.cause.read().decode('utf-8'), None)
+ self._check_error(response, ('email', 'password'))
+ raise
+
+ self._check_error(response, 'ErrorMessage')
+
+ return response, action_url
+
def _login(self):
- (username, password) = self._get_login_info()
+ username, password = self._get_login_info()
if username is None:
return
- login_form = {
- 'username': username.encode('utf-8'),
- 'password': password.encode('utf-8'),
- 'remember': 'false',
- 'stayPut': 'false'
- }
- request = compat_urllib_request.Request(
- self._LOGIN_URL, compat_urllib_parse.urlencode(login_form).encode('utf-8'))
- login_page = self._download_webpage(
- request, None, 'Logging in as %s' % username)
-
- # Not (yet) logged in
- m = re.search(r'loginResultJson\s*=\s*\'(?P<json>[^\']+)\';', login_page)
- if m is not None:
- response = m.group('json')
- response_json = json.loads(response)
- state = response_json['state']
-
- if state == 'notlogged':
- raise ExtractorError(
- 'Unable to login, incorrect username and/or password',
- expected=True)
-
- # This is when we get popup:
- # > You're already logged in to lynda.com on two devices.
- # > If you log in here, we'll log you out of another device.
- # So, we need to confirm this.
- if state == 'conflicted':
- confirm_form = {
- 'username': '',
- 'password': '',
- 'resolve': 'true',
- 'remember': 'false',
- 'stayPut': 'false',
- }
- request = compat_urllib_request.Request(
- self._LOGIN_URL, compat_urllib_parse.urlencode(confirm_form).encode('utf-8'))
- login_page = self._download_webpage(
- request, None,
- 'Confirming log in and log out from another device')
-
- if all(not re.search(p, login_page) for p in ('isLoggedIn\s*:\s*true', r'logout\.aspx', r'>Log out<')):
- raise ExtractorError('Unable to log in')
+ # Step 1: download signin page
+ signin_page = self._download_webpage(
+ self._SIGNIN_URL, None, 'Downloading signin page')
+
+ # Already logged in
+ if any(re.search(p, signin_page) for p in (
+ 'isLoggedIn\s*:\s*true', r'logout\.aspx', r'>Log out<')):
+ return
+
+ # Step 2: submit email
+ signin_form = self._search_regex(
+ r'(?s)(<form[^>]+data-form-name=["\']signin["\'][^>]*>.+?</form>)',
+ signin_page, 'signin form')
+ signin_page, signin_url = self._login_step(
+ signin_form, self._PASSWORD_URL, {'email': username},
+ 'Submitting email', self._SIGNIN_URL)
+
+ # Step 3: submit password
+ password_form = signin_page['body']
+ self._login_step(
+ password_form, self._USER_URL, {'email': username, 'password': password},
+ 'Submitting password', signin_url)
class LyndaIE(LyndaBaseIE):
def _real_extract(self, url):
video_id = self._match_id(url)
- page = self._download_webpage(
+ video = self._download_json(
'http://www.lynda.com/ajax/player?videoId=%s&type=video' % video_id,
video_id, 'Downloading video JSON')
- video_json = json.loads(page)
- if 'Status' in video_json:
+ if 'Status' in video:
raise ExtractorError(
- 'lynda returned error: %s' % video_json['Message'], expected=True)
+ 'lynda returned error: %s' % video['Message'], expected=True)
- if video_json['HasAccess'] is False:
- raise ExtractorError(
- 'Video %s is only available for members. '
- % video_id + self._ACCOUNT_CREDENTIALS_HINT, expected=True)
+ if video.get('HasAccess') is False:
+ self.raise_login_required('Video %s is only available for members' % video_id)
- video_id = compat_str(video_json['ID'])
- duration = video_json['DurationInSeconds']
- title = video_json['Title']
+ video_id = compat_str(video.get('ID') or video_id)
+ duration = int_or_none(video.get('DurationInSeconds'))
+ title = video['Title']
formats = []
- fmts = video_json.get('Formats')
+ fmts = video.get('Formats')
if fmts:
- formats.extend([
- {
- 'url': fmt['Url'],
- 'ext': fmt['Extension'],
- 'width': fmt['Width'],
- 'height': fmt['Height'],
- 'filesize': fmt['FileSize'],
- 'format_id': str(fmt['Resolution'])
- } for fmt in fmts])
-
- prioritized_streams = video_json.get('PrioritizedStreams')
+ formats.extend([{
+ 'url': f['Url'],
+ 'ext': f.get('Extension'),
+ 'width': int_or_none(f.get('Width')),
+ 'height': int_or_none(f.get('Height')),
+ 'filesize': int_or_none(f.get('FileSize')),
+ 'format_id': compat_str(f.get('Resolution')) if f.get('Resolution') else None,
+ } for f in fmts if f.get('Url')])
+
+ prioritized_streams = video.get('PrioritizedStreams')
if prioritized_streams:
- formats.extend([
- {
+ for prioritized_stream_id, prioritized_stream in prioritized_streams.items():
+ formats.extend([{
'url': video_url,
'width': int_or_none(format_id),
- 'format_id': format_id,
- } for format_id, video_url in prioritized_streams['0'].items()
- ])
+ 'format_id': '%s-%s' % (prioritized_stream_id, format_id),
+ } for format_id, video_url in prioritized_stream.items()])
self._check_formats(formats, video_id)
self._sort_formats(formats)
- subtitles = self.extract_subtitles(video_id, page)
+ subtitles = self.extract_subtitles(video_id)
return {
'id': video_id,
if srt:
return srt
- def _get_subtitles(self, video_id, webpage):
+ def _get_subtitles(self, video_id):
url = 'http://www.lynda.com/ajax/player?videoId=%s&type=transcript' % video_id
subs = self._download_json(url, None, False)
if subs:
course_path = mobj.group('coursepath')
course_id = mobj.group('courseid')
- page = self._download_webpage(
+ course = self._download_json(
'http://www.lynda.com/ajax/player?courseId=%s&type=course' % course_id,
course_id, 'Downloading course JSON')
- course_json = json.loads(page)
- if 'Status' in course_json and course_json['Status'] == 'NotFound':
+ if course.get('Status') == 'NotFound':
raise ExtractorError(
'Course %s does not exist' % course_id, expected=True)
unaccessible_videos = 0
- videos = []
+ entries = []
# Might want to extract videos right here from video['Formats'] as it seems 'Formats' is not provided
# by single video API anymore
- for chapter in course_json['Chapters']:
- for video in chapter['Videos']:
- if video['HasAccess'] is False:
+ for chapter in course['Chapters']:
+ for video in chapter.get('Videos', []):
+ if video.get('HasAccess') is False:
unaccessible_videos += 1
continue
- videos.append(video['ID'])
+ video_id = video.get('ID')
+ if video_id:
+ entries.append({
+ '_type': 'url_transparent',
+ 'url': 'http://www.lynda.com/%s/%s-4.html' % (course_path, video_id),
+ 'ie_key': LyndaIE.ie_key(),
+ 'chapter': chapter.get('Title'),
+ 'chapter_number': int_or_none(chapter.get('ChapterIndex')),
+ 'chapter_id': compat_str(chapter.get('ID')),
+ })
if unaccessible_videos > 0:
self._downloader.report_warning(
'%s videos are only available for members (or paid members) and will not be downloaded. '
% unaccessible_videos + self._ACCOUNT_CREDENTIALS_HINT)
- entries = [
- self.url_result(
- 'http://www.lynda.com/%s/%s-4.html' % (course_path, video_id),
- 'Lynda')
- for video_id in videos]
-
- course_title = course_json['Title']
+ course_title = course.get('Title')
+ course_description = course.get('Description')
- return self.playlist_result(entries, course_id, course_title)
+ return self.playlist_result(entries, course_id, course_title, course_description)
projects / youtube-dl / blobdiff