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[lynda] Add fallback extraction scenario

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Sergey M․ 2016-10-16 00:07:40 +07:00
parent 68d9561ca1
commit 6edfc40a0e
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1 changed files with 57 additions and 5 deletions
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62
youtube_dl/extractor/lynda.py
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@ -94,7 +94,7 @@ def _login(self):
class LyndaIE(LyndaBaseIE):
IE_NAME = 'lynda'
IE_DESC = 'lynda.com videos'
_VALID_URL = r'https?://(?:www\.)?lynda\.com/(?:[^/]+/[^/]+/\d+|player/embed)/(?P<id>\d+)'
_VALID_URL = r'https?://(?:www\.)?lynda\.com/(?:[^/]+/[^/]+/(?P<course_id>\d+)|player/embed)/(?P<id>\d+)'
_TIMECODE_REGEX = r'\[(?P<timecode>\d+:\d+:\d+[\.,]\d+)\]'
@ -112,19 +112,71 @@ class LyndaIE(LyndaBaseIE):
'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):
video_id = self._match_id(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?videoId=%s&type=video' % video_id,
video_id, 'Downloading video 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_login_required('Video %s is only available for members' % video_id)
self._raise_unavailable(video_id)
video_id = compat_str(video.get('ID') or video_id)
duration = int_or_none(video.get('DurationInSeconds'))