diff options
Diffstat (limited to 'youtube_dl/extractor/lynda.py')
-rw-r--r-- | youtube_dl/extractor/lynda.py | 341 |
1 files changed, 0 insertions, 341 deletions
diff --git a/youtube_dl/extractor/lynda.py b/youtube_dl/extractor/lynda.py deleted file mode 100644 index b3d8653d0..000000000 --- a/youtube_dl/extractor/lynda.py +++ /dev/null @@ -1,341 +0,0 @@ -from __future__ import unicode_literals - -import re - -from .common import InfoExtractor -from ..compat import ( - compat_str, - compat_urlparse, -) -from ..utils import ( - ExtractorError, - int_or_none, - urlencode_postdata, -) - - -class LyndaBaseIE(InfoExtractor): - _SIGNIN_URL = 'https://www.lynda.com/signin/lynda' - _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) - - response = self._download_json( - action_url, None, note, - data=urlencode_postdata(form_data), - headers={ - 'Referer': referrer_url, - 'X-Requested-With': 'XMLHttpRequest', - }, expected_status=(418, 500, )) - - self._check_error(response, ('email', 'password', 'ErrorMessage')) - - return response, action_url - - def _login(self): - username, password = self._get_login_info() - if username is None: - return - - # 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 ( - r'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): - IE_NAME = 'lynda' - IE_DESC = 'lynda.com videos' - _VALID_URL = r'''(?x) - https?:// - (?:www\.)?(?:lynda\.com|educourse\.ga)/ - (?: - (?:[^/]+/){2,3}(?P<course_id>\d+)| - player/embed - )/ - (?P<id>\d+) - ''' - - _TIMECODE_REGEX = r'\[(?P<timecode>\d+:\d+:\d+[\.,]\d+)\]' - - _TESTS = [{ - 'url': 'https://www.lynda.com/Bootstrap-tutorials/Using-exercise-files/110885/114408-4.html', - # md5 is unstable - '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, - }, { - 'url': 'https://educourse.ga/Bootstrap-tutorials/Using-exercise-files/110885/114408-4.html', - 'only_matching': True, - }, { - 'url': 'https://www.lynda.com/de/Graphic-Design-tutorials/Willkommen-Grundlagen-guten-Gestaltung/393570/393572-4.html', - 'only_matching': True, - }, { - # Status="NotFound", Message="Transcript not found" - 'url': 'https://www.lynda.com/ASP-NET-tutorials/What-you-should-know/5034180/2811512-4.html', - 'only_matching': True, - }] - - def _raise_unavailable(self, video_id): - self.raise_login_required( - 'Video %s is only available for members' % video_id) - - def _real_extract(self, url): - mobj = re.match(self._VALID_URL, url) - video_id = mobj.group('id') - course_id = mobj.group('course_id') - - query = { - 'videoId': video_id, - 'type': 'video', - } - - video = self._download_json( - 'https://www.lynda.com/ajax/player', video_id, - 'Downloading video JSON', fatal=False, query=query) - - # Fallback scenario - if not video: - query['courseId'] = course_id - - play = self._download_json( - 'https://www.lynda.com/ajax/course/%s/%s/play' - % (course_id, video_id), video_id, 'Downloading play JSON') - - if not play: - self._raise_unavailable(video_id) - - formats = [] - for formats_dict in play: - urls = formats_dict.get('urls') - if not isinstance(urls, dict): - continue - cdn = formats_dict.get('name') - for format_id, format_url in urls.items(): - if not format_url: - continue - formats.append({ - 'url': format_url, - 'format_id': '%s-%s' % (cdn, format_id) if cdn else format_id, - 'height': int_or_none(format_id), - }) - self._sort_formats(formats) - - conviva = self._download_json( - 'https://www.lynda.com/ajax/player/conviva', video_id, - 'Downloading conviva JSON', query=query) - - return { - 'id': video_id, - 'title': conviva['VideoTitle'], - 'description': conviva.get('VideoDescription'), - 'release_year': int_or_none(conviva.get('ReleaseYear')), - 'duration': int_or_none(conviva.get('Duration')), - 'creator': conviva.get('Author'), - 'formats': formats, - } - - if 'Status' in video: - raise ExtractorError( - 'lynda returned error: %s' % video['Message'], expected=True) - - if video.get('HasAccess') is False: - self._raise_unavailable(video_id) - - video_id = compat_str(video.get('ID') or video_id) - duration = int_or_none(video.get('DurationInSeconds')) - title = video['Title'] - - formats = [] - - fmts = video.get('Formats') - if fmts: - 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: - for prioritized_stream_id, prioritized_stream in prioritized_streams.items(): - formats.extend([{ - 'url': video_url, - 'height': int_or_none(format_id), - '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) - - 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): - url = 'https://www.lynda.com/ajax/player?videoId=%s&type=transcript' % video_id - subs = self._download_webpage( - url, video_id, 'Downloading subtitles JSON', fatal=False) - if not subs or 'Status="NotFound"' in subs: - return {} - subs = self._parse_json(subs, video_id, fatal=False) - if not subs: - return {} - fixed_subs = self._fix_subtitles(subs) - if fixed_subs: - return {'en': [{'ext': 'srt', 'data': fixed_subs}]} - 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|educourse\.ga)/(?P<coursepath>(?:[^/]+/){2,3}(?P<courseid>\d+))-2\.html' - - _TESTS = [{ - 'url': 'https://www.lynda.com/Graphic-Design-tutorials/Grundlagen-guten-Gestaltung/393570-2.html', - 'only_matching': True, - }, { - 'url': 'https://www.lynda.com/de/Graphic-Design-tutorials/Grundlagen-guten-Gestaltung/393570-2.html', - 'only_matching': True, - }] - - def _real_extract(self, url): - mobj = re.match(self._VALID_URL, url) - course_path = mobj.group('coursepath') - course_id = mobj.group('courseid') - - item_template = 'https://www.lynda.com/%s/%%s-4.html' % course_path - - course = self._download_json( - 'https://www.lynda.com/ajax/player?courseId=%s&type=course' % course_id, - course_id, 'Downloading course JSON', fatal=False) - - if not course: - webpage = self._download_webpage(url, course_id) - entries = [ - self.url_result( - item_template % video_id, ie=LyndaIE.ie_key(), - video_id=video_id) - for video_id in re.findall( - r'data-video-id=["\'](\d+)', webpage)] - return self.playlist_result( - entries, course_id, - self._og_search_title(webpage, fatal=False), - self._og_search_description(webpage)) - - if course.get('Status') == 'NotFound': - raise ExtractorError( - 'Course %s does not exist' % course_id, expected=True) - - unaccessible_videos = 0 - 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['Chapters']: - for video in chapter.get('Videos', []): - if video.get('HasAccess') is False: - unaccessible_videos += 1 - continue - video_id = video.get('ID') - if video_id: - entries.append({ - '_type': 'url_transparent', - 'url': item_template % 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) - - course_title = course.get('Title') - course_description = course.get('Description') - - return self.playlist_result(entries, course_id, course_title, course_description) |