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[DLF] Add site extractors back-ported from yt-dlp
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* from yt-dlp/yt-dlp#6697, thanks nick-cd
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@dirkf
dirkf committed Jul 19, 2023
1 parent eaaf4c6 commit 4339910
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204 changes: 204 additions & 0 deletions youtube_dl/extractor/dlf.py
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# coding: utf-8
from __future__ import unicode_literals

import re

from .common import InfoExtractor
from ..compat import (
compat_str,
)
from ..utils import (
determine_ext,
extract_attributes,
int_or_none,
merge_dicts,
traverse_obj,
url_or_none,
variadic,
)


class DLFBaseIE(InfoExtractor):
_VALID_URL_BASE = r'https?://(?:www\.)?deutschlandfunk\.de/'
_BUTTON_REGEX = r'(<button[^>]+alt="Anhören"[^>]+data-audio-diraid[^>]*>)'

def _parse_button_attrs(self, button, audio_id=None):
attrs = extract_attributes(button)
audio_id = audio_id or attrs['data-audio-diraid']

url = traverse_obj(
attrs, 'data-audio-download-src', 'data-audio', 'data-audioreference',
'data-audio-src', expected_type=url_or_none)
ext = determine_ext(url)
formats = (self._extract_m3u8_formats(url, audio_id, fatal=False)
if ext == 'm3u8' else [{'url': url, 'ext': ext, 'vcodec': 'none'}])
self._sort_formats(formats)

def traverse_attrs(path):
path = list(variadic(path))
t = path.pop() if callable(path[-1]) else None
return traverse_obj(attrs, path, expected_type=t, get_all=False)

def txt_or_none(v, default=None):
return default if v is None else (compat_str(v).strip() or default)

return merge_dicts(*reversed([{
'id': audio_id,
# 'extractor_key': DLFIE.ie_key(),
# 'extractor': DLFIE.IE_NAME,
'formats': formats,
}, dict((k, traverse_attrs(v)) for k, v in {
'title': (('data-audiotitle', 'data-audio-title', 'data-audio-download-tracking-title'), txt_or_none),
'duration': (('data-audioduration', 'data-audio-duration'), int_or_none),
'thumbnail': ('data-audioimage', url_or_none),
'uploader': 'data-audio-producer',
'series': 'data-audio-series',
'channel': 'data-audio-origin-site-name',
'webpage_url': ('data-audio-download-tracking-path', url_or_none),
}.items())]))


class DLFIE(DLFBaseIE):
IE_NAME = 'dlf'
_VALID_URL = DLFBaseIE._VALID_URL_BASE + r'[\w-]+-dlf-(?P<id>[\da-f]{8})-100\.html'
_TESTS = [
# Audio as an HLS stream
{
'url': 'https://www.deutschlandfunk.de/tanz-der-saiteninstrumente-das-wild-strings-trio-aus-slowenien-dlf-03a3eb19-100.html',
'info_dict': {
'id': '03a3eb19',
'title': r're:Tanz der Saiteninstrumente [-/] Das Wild Strings Trio aus Slowenien',
'ext': 'm4a',
'duration': 3298,
'thumbnail': 'https://assets.deutschlandfunk.de/FALLBACK-IMAGE-AUDIO/512x512.png?t=1603714364673',
'uploader': 'Deutschlandfunk',
'series': 'On Stage',
'channel': 'deutschlandfunk'
},
'params': {
'skip_download': 'm3u8'
},
'skip': 'This webpage no longer exists'
}, {
'url': 'https://www.deutschlandfunk.de/russische-athleten-kehren-zurueck-auf-die-sportbuehne-ein-gefaehrlicher-tueroeffner-dlf-d9cc1856-100.html',
'info_dict': {
'id': 'd9cc1856',
'title': 'Russische Athleten kehren zurück auf die Sportbühne: Ein gefährlicher Türöffner',
'ext': 'mp3',
'duration': 291,
'thumbnail': 'https://assets.deutschlandfunk.de/FALLBACK-IMAGE-AUDIO/512x512.png?t=1603714364673',
'uploader': 'Deutschlandfunk',
'series': 'Kommentare und Themen der Woche',
'channel': 'deutschlandfunk'
}
},
]

def _real_extract(self, url):
audio_id = self._match_id(url)
webpage = self._download_webpage(url, audio_id)

return self._parse_button_attrs(
self._search_regex(self._BUTTON_REGEX, webpage, 'button'), audio_id)


class DLFCorpusIE(DLFBaseIE):
IE_NAME = 'dlf:corpus'
IE_DESC = 'DLF Multi-feed Archives'
_VALID_URL = DLFBaseIE._VALID_URL_BASE + r'(?P<id>(?![\w-]+-dlf-[\da-f]{8})[\w-]+-\d+)\.html'
_TESTS = [
# Recorded news broadcast with referrals to related broadcasts
{
'url': 'https://www.deutschlandfunk.de/fechten-russland-belarus-ukraine-protest-100.html',
'info_dict': {
'id': 'fechten-russland-belarus-ukraine-protest-100',
'title': r're:Wiederzulassung als neutrale Athleten [-/] Was die Rückkehr russischer und belarussischer Sportler beim Fechten bedeutet',
'description': 'md5:91340aab29c71aa7518ad5be13d1e8ad'
},
'playlist_mincount': 5,
'playlist': [{
'info_dict': {
'id': '1fc5d64a',
'title': r're:Wiederzulassung als neutrale Athleten [-/] Was die Rückkehr russischer und belarussischer Sportler beim Fechten bedeutet',
'ext': 'mp3',
'duration': 252,
'thumbnail': 'https://assets.deutschlandfunk.de/aad16241-6b76-4a09-958b-96d0ee1d6f57/512x512.jpg?t=1679480020313',
'uploader': 'Deutschlandfunk',
'series': 'Sport',
'channel': 'deutschlandfunk'
}
}, {
'info_dict': {
'id': '2ada145f',
'title': r're:(?:Sportpolitik / )?Fechtverband votiert für Rückkehr russischer Athleten',
'ext': 'mp3',
'duration': 336,
'thumbnail': 'https://assets.deutschlandfunk.de/FILE_93982766f7317df30409b8a184ac044a/512x512.jpg?t=1678547581005',
'uploader': 'Deutschlandfunk',
'series': 'Deutschlandfunk Nova',
'channel': 'deutschlandfunk-nova'
}
}, {
'info_dict': {
'id': '5e55e8c9',
'title': r're:Wiederzulassung von Russland und Belarus [-/] "Herumlavieren" des Fechter-Bundes sorgt für Unverständnis',
'ext': 'mp3',
'duration': 187,
'thumbnail': 'https://assets.deutschlandfunk.de/a595989d-1ed1-4a2e-8370-b64d7f11d757/512x512.jpg?t=1679173825412',
'uploader': 'Deutschlandfunk',
'series': 'Sport am Samstag',
'channel': 'deutschlandfunk'
}
}, {
'info_dict': {
'id': '47e1a096',
'title': r're:Rückkehr Russlands im Fechten [-/] "Fassungslos, dass es einfach so passiert ist"',
'ext': 'mp3',
'duration': 602,
'thumbnail': 'https://assets.deutschlandfunk.de/da4c494a-21cc-48b4-9cc7-40e09fd442c2/512x512.jpg?t=1678562155770',
'uploader': 'Deutschlandfunk',
'series': 'Sport am Samstag',
'channel': 'deutschlandfunk'
}
}, {
'info_dict': {
'id': '5e55e8c9',
'title': r're:Wiederzulassung von Russland und Belarus [-/] "Herumlavieren" des Fechter-Bundes sorgt für Unverständnis',
'ext': 'mp3',
'duration': 187,
'thumbnail': 'https://assets.deutschlandfunk.de/a595989d-1ed1-4a2e-8370-b64d7f11d757/512x512.jpg?t=1679173825412',
'uploader': 'Deutschlandfunk',
'series': 'Sport am Samstag',
'channel': 'deutschlandfunk'
}
}]
},
# Podcast feed with tag buttons, playlist count fluctuates
{
'url': 'https://www.deutschlandfunk.de/kommentare-und-themen-der-woche-100.html',
'info_dict': {
'id': 'kommentare-und-themen-der-woche-100',
'title': 'Meinung - Kommentare und Themen der Woche',
'description': 'md5:2901bbd65cd2d45e116d399a099ce5d5',
},
'playlist_mincount': 10,
},
# Podcast feed with no description
{
'url': 'https://www.deutschlandfunk.de/podcast-tolle-idee-100.html',
'info_dict': {
'id': 'podcast-tolle-idee-100',
'title': 'Wissenschaftspodcast - Tolle Idee! - Was wurde daraus?',
},
'playlist_mincount': 11,
},
]

def _real_extract(self, url):
playlist_id = self._match_id(url)
webpage = self._download_webpage(url, playlist_id)

return self.playlist_result(
map(self._parse_button_attrs, re.findall(self._BUTTON_REGEX, webpage)),
playlist_id, self._html_search_meta(['og:title', 'twitter:title'], webpage, default=None),
self._html_search_meta(['description', 'og:description', 'twitter:description'], webpage, default=None))
4 changes: 4 additions & 0 deletions youtube_dl/extractor/extractors.py
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from .dctp import DctpTvIE
from .deezer import DeezerPlaylistIE
from .democracynow import DemocracynowIE
from .dlf import (
DLFCorpusIE,
DLFIE,
)
from .dfb import DFBIE
from .dhm import DHMIE
from .digg import DiggIE
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