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- from __future__ import unicode_literals
-
- import re
- import json
-
- from .common import InfoExtractor
- from ..compat import (
- compat_str,
- compat_urllib_parse,
- compat_urllib_request,
- )
- from ..utils import (
- ExtractorError,
- int_or_none,
- )
-
-
- class LyndaBaseIE(InfoExtractor):
- _LOGIN_URL = 'https://www.lynda.com/login/login.aspx'
- _SUCCESSFUL_LOGIN_REGEX = r'isLoggedIn: true'
- _ACCOUNT_CREDENTIALS_HINT = 'Use --username and --password options to provide lynda.com account credentials.'
- _NETRC_MACHINE = 'lynda'
-
- def _real_initialize(self):
- self._login()
-
- def _login(self):
- (username, password) = self._get_login_info()
- if username is None:
- return
-
- login_form = {
- 'username': username,
- 'password': password,
- '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 = \'(?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 re.search(self._SUCCESSFUL_LOGIN_REGEX, login_page) is None:
- raise ExtractorError('Unable to log in')
-
-
- class LyndaIE(LyndaBaseIE):
- IE_NAME = 'lynda'
- IE_DESC = 'lynda.com videos'
- _VALID_URL = r'https?://www\.lynda\.com/(?:[^/]+/[^/]+/\d+|player/embed)/(?P<id>\d+)'
- _NETRC_MACHINE = 'lynda'
-
- _TIMECODE_REGEX = r'\[(?P<timecode>\d+:\d+:\d+[\.,]\d+)\]'
-
- _TESTS = [{
- 'url': 'http://www.lynda.com/Bootstrap-tutorials/Using-exercise-files/110885/114408-4.html',
- 'md5': 'ecfc6862da89489161fb9cd5f5a6fac1',
- 'info_dict': {
- 'id': '114408',
- 'ext': 'mp4',
- 'title': 'Using the exercise files',
- 'duration': 68
- }
- }, {
- 'url': 'https://www.lynda.com/player/embed/133770?tr=foo=1;bar=g;fizz=rt&fs=0',
- 'only_matching': True,
- }]
-
- def _real_extract(self, url):
- video_id = self._match_id(url)
-
- page = self._download_webpage(
- '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:
- raise ExtractorError(
- 'lynda returned error: %s' % video_json['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)
-
- video_id = compat_str(video_json['ID'])
- duration = video_json['DurationInSeconds']
- title = video_json['Title']
-
- formats = []
-
- fmts = video_json.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')
- if prioritized_streams:
- 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()
- ])
-
- self._check_formats(formats, video_id)
- self._sort_formats(formats)
-
- subtitles = self.extract_subtitles(video_id, page)
-
- return {
- 'id': video_id,
- 'title': title,
- 'duration': duration,
- 'subtitles': subtitles,
- 'formats': formats
- }
-
- def _fix_subtitles(self, subs):
- srt = ''
- seq_counter = 0
- for pos in range(0, len(subs) - 1):
- seq_current = subs[pos]
- m_current = re.match(self._TIMECODE_REGEX, seq_current['Timecode'])
- if m_current is None:
- continue
- seq_next = subs[pos + 1]
- m_next = re.match(self._TIMECODE_REGEX, seq_next['Timecode'])
- if m_next is None:
- continue
- appear_time = m_current.group('timecode')
- disappear_time = m_next.group('timecode')
- text = seq_current['Caption'].strip()
- if text:
- seq_counter += 1
- srt += '%s\r\n%s --> %s\r\n%s\r\n\r\n' % (seq_counter, appear_time, disappear_time, text)
- if srt:
- return srt
-
- def _get_subtitles(self, video_id, webpage):
- url = 'http://www.lynda.com/ajax/player?videoId=%s&type=transcript' % video_id
- subs = self._download_json(url, None, False)
- if subs:
- return {'en': [{'ext': 'srt', 'data': self._fix_subtitles(subs)}]}
- else:
- return {}
-
-
- class LyndaCourseIE(LyndaBaseIE):
- IE_NAME = 'lynda:course'
- IE_DESC = 'lynda.com online courses'
-
- # Course link equals to welcome/introduction video link of same course
- # We will recognize it as course link
- _VALID_URL = r'https?://(?:www|m)\.lynda\.com/(?P<coursepath>[^/]+/[^/]+/(?P<courseid>\d+))-\d\.html'
-
- def _real_extract(self, url):
- mobj = re.match(self._VALID_URL, url)
- course_path = mobj.group('coursepath')
- course_id = mobj.group('courseid')
-
- page = self._download_webpage(
- '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':
- raise ExtractorError(
- 'Course %s does not exist' % course_id, expected=True)
-
- unaccessible_videos = 0
- videos = []
-
- # 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:
- unaccessible_videos += 1
- continue
- videos.append(video['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']
-
- return self.playlist_result(entries, course_id, course_title)
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