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yt-dlp/yt_dlp/extractor/tubetugraz.py
Ferdinand Bachmann 49afc1d84a
[extractor/TubeTuGraz] Add extractor (#2397) 
Based on https://github.com/ytdl-org/youtube-dl/pull/26778
Authored by: Ferdi265, pukkandan
2022-07-15 16:18:21 +05:30

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Python
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from .common import InfoExtractor
from ..utils import (
float_or_none,
parse_resolution,
traverse_obj,
urlencode_postdata,
variadic,
)
class TubeTuGrazBaseIE(InfoExtractor):
_NETRC_MACHINE = 'tubetugraz'
_API_EPISODE = 'https://tube.tugraz.at/search/episode.json'
_FORMAT_TYPES = ('presentation', 'presenter')
def _perform_login(self, username, password):
urlh = self._request_webpage(
'https://tube.tugraz.at/Shibboleth.sso/Login?target=/paella/ui/index.html',
None, fatal=False, note='downloading login page', errnote='unable to fetch login page')
if not urlh:
return
urlh = self._request_webpage(
urlh.geturl(), None, fatal=False, headers={'referer': urlh.geturl()},
note='logging in', errnote='unable to log in', data=urlencode_postdata({
'lang': 'de',
'_eventId_proceed': '',
'j_username': username,
'j_password': password
}))
if urlh and urlh.geturl() != 'https://tube.tugraz.at/paella/ui/index.html':
self.report_warning('unable to login: incorrect password')
def _extract_episode(self, episode_info):
id = episode_info.get('id')
formats = list(self._extract_formats(
traverse_obj(episode_info, ('mediapackage', 'media', 'track')), id))
self._sort_formats(formats)
title = traverse_obj(episode_info, ('mediapackage', 'title'), 'dcTitle')
series_title = traverse_obj(episode_info, ('mediapackage', 'seriestitle'))
creator = ', '.join(variadic(traverse_obj(
episode_info, ('mediapackage', 'creators', 'creator'), 'dcCreator', default='')))
return {
'id': id,
'title': title,
'creator': creator or None,
'duration': traverse_obj(episode_info, ('mediapackage', 'duration'), 'dcExtent'),
'series': series_title,
'series_id': traverse_obj(episode_info, ('mediapackage', 'series'), 'dcIsPartOf'),
'episode': series_title and title,
'formats': formats
}
def _set_format_type(self, formats, type):
for f in formats:
f['format_note'] = type
if not type.startswith(self._FORMAT_TYPES[0]):
f['preference'] = -2
return formats
def _extract_formats(self, format_list, id):
has_hls, has_dash = False, False
for format_info in format_list or []:
url = traverse_obj(format_info, ('tags', 'url'), 'url')
if url is None:
continue
type = format_info.get('type') or 'unknown'
transport = (format_info.get('transport') or 'https').lower()
if transport == 'https':
formats = [{
'url': url,
'abr': float_or_none(traverse_obj(format_info, ('audio', 'bitrate')), 1000),
'vbr': float_or_none(traverse_obj(format_info, ('video', 'bitrate')), 1000),
'fps': traverse_obj(format_info, ('video', 'framerate')),
**parse_resolution(traverse_obj(format_info, ('video', 'resolution'))),
}]
elif transport == 'hls':
has_hls, formats = True, self._extract_m3u8_formats(
url, id, 'mp4', fatal=False, note=f'downloading {type} HLS manifest')
elif transport == 'dash':
has_dash, formats = True, self._extract_mpd_formats(
url, id, fatal=False, note=f'downloading {type} DASH manifest')
else:
# RTMP, HDS, SMOOTH, and unknown formats
# - RTMP url fails on every tested entry until now
# - HDS url 404's on every tested entry until now
# - SMOOTH url 404's on every tested entry until now
continue
yield from self._set_format_type(formats, type)
# TODO: Add test for these
for type in self._FORMAT_TYPES:
if not has_hls:
hls_formats = self._extract_m3u8_formats(
f'https://wowza.tugraz.at/matterhorn_engage/smil:engage-player_{id}_{type}.smil/playlist.m3u8',
id, 'mp4', fatal=False, note=f'Downloading {type} HLS manifest', errnote=False) or []
yield from self._set_format_type(hls_formats, type)
if not has_dash:
dash_formats = self._extract_mpd_formats(
f'https://wowza.tugraz.at/matterhorn_engage/smil:engage-player_{id}_{type}.smil/manifest_mpm4sav_mvlist.mpd',
id, fatal=False, note=f'Downloading {type} DASH manifest', errnote=False)
yield from self._set_format_type(dash_formats, type)
class TubeTuGrazIE(TubeTuGrazBaseIE):
IE_DESC = 'tube.tugraz.at'
_VALID_URL = r'''(?x)
https?://tube\.tugraz\.at/paella/ui/watch.html\?id=
(?P<id>[0-9a-fA-F]{8}-(?:[0-9a-fA-F]{4}-){3}[0-9a-fA-F]{12})
'''
_TESTS = [
{
'url': 'https://tube.tugraz.at/paella/ui/watch.html?id=f2634392-e40e-4ac7-9ddc-47764aa23d40',
'md5': 'a23a3d5c9aaca2b84932fdba66e17145',
'info_dict': {
'id': 'f2634392-e40e-4ac7-9ddc-47764aa23d40',
'ext': 'mp4',
'title': '#6 (23.11.2017)',
'episode': '#6 (23.11.2017)',
'series': '[INB03001UF] Einführung in die strukturierte Programmierung',
'creator': 'Safran C',
'duration': 3295818,
'series_id': 'b1192fff-2aa7-4bf0-a5cf-7b15c3bd3b34',
}
}, {
'url': 'https://tube.tugraz.at/paella/ui/watch.html?id=2df6d787-e56a-428d-8ef4-d57f07eef238',
'md5': 'de0d854a56bf7318d2b693fe1adb89a5',
'info_dict': {
'id': '2df6d787-e56a-428d-8ef4-d57f07eef238',
'title': 'TubeTuGraz video #2df6d787-e56a-428d-8ef4-d57f07eef238',
'ext': 'mp4',
},
'expected_warnings': ['Extractor failed to obtain "title"'],
}
]
def _real_extract(self, url):
video_id = self._match_id(url)
episode_data = self._download_json(
self._API_EPISODE, video_id, query={'id': video_id, 'limit': 1}, note='Downloading episode metadata')
episode_info = traverse_obj(episode_data, ('search-results', 'result'), default={'id': video_id})
return self._extract_episode(episode_info)
class TubeTuGrazSeriesIE(TubeTuGrazBaseIE):
_VALID_URL = r'''(?x)
https?://tube\.tugraz\.at/paella/ui/browse\.html\?series=
(?P<id>[0-9a-fA-F]{8}-(?:[0-9a-fA-F]{4}-){3}[0-9a-fA-F]{12})
'''
_TESTS = [{
'url': 'https://tube.tugraz.at/paella/ui/browse.html?series=0e6351b7-c372-491e-8a49-2c9b7e21c5a6',
'id': '0e6351b7-c372-491e-8a49-2c9b7e21c5a6',
'info_dict': {
'id': '0e6351b7-c372-491e-8a49-2c9b7e21c5a6',
'title': '[209351] Strassenwesen',
},
'playlist': [
{
'info_dict': {
'id': 'ee17ce5d-34e2-48b7-a76a-fed148614e11',
'series_id': '0e6351b7-c372-491e-8a49-2c9b7e21c5a6',
'ext': 'mp4',
'title': '#4 Detailprojekt',
'episode': '#4 Detailprojekt',
'series': '[209351] Strassenwesen',
'creator': 'Neuhold R',
'duration': 6127024,
}
},
{
'info_dict': {
'id': '87350498-799a-44d3-863f-d1518a98b114',
'series_id': '0e6351b7-c372-491e-8a49-2c9b7e21c5a6',
'ext': 'mp4',
'title': '#3 Generelles Projekt',
'episode': '#3 Generelles Projekt',
'series': '[209351] Strassenwesen',
'creator': 'Neuhold R',
'duration': 5374422,
}
},
{
'info_dict': {
'id': '778599ea-489e-4189-9e05-3b4888e19bcd',
'series_id': '0e6351b7-c372-491e-8a49-2c9b7e21c5a6',
'ext': 'mp4',
'title': '#2 Vorprojekt',
'episode': '#2 Vorprojekt',
'series': '[209351] Strassenwesen',
'creator': 'Neuhold R',
'duration': 5566404,
}
},
{
'info_dict': {
'id': '75e4c71c-d99d-4e56-b0e6-4f2bcdf11f29',
'series_id': '0e6351b7-c372-491e-8a49-2c9b7e21c5a6',
'ext': 'mp4',
'title': '#1 Variantenstudium',
'episode': '#1 Variantenstudium',
'series': '[209351] Strassenwesen',
'creator': 'Neuhold R',
'duration': 5420200,
}
}
],
'min_playlist_count': 4
}]
def _real_extract(self, url):
id = self._match_id(url)
episodes_data = self._download_json(self._API_EPISODE, id, query={'sid': id}, note='Downloading episode list')
series_data = self._download_json(
'https://tube.tugraz.at/series/series.json', id, fatal=False,
note='downloading series metadata', errnote='failed to download series metadata',
query={
'seriesId': id,
'count': 1,
'sort': 'TITLE'
})
return self.playlist_result(
map(self._extract_episode, episodes_data['search-results']['result']), id,
traverse_obj(series_data, ('catalogs', 0, 'http://purl.org/dc/terms/', 'title', 0, 'value')))
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