yt-dlp/yt_dlp/extractor/telegram.py

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import re
from .common import InfoExtractor
from ..utils import (
clean_html,
format_field,
get_element_by_class,
parse_duration,
parse_qs,
traverse_obj,
unified_timestamp,
update_url_query,
url_basename,
)
class TelegramEmbedIE(InfoExtractor):
IE_NAME = 'telegram:embed'
_VALID_URL = r'https?://t\.me/(?P<channel_id>[^/]+)/(?P<id>\d+)'
_TESTS = [{
'url': 'https://t.me/europa_press/613',
'md5': 'dd707708aea958c11a590e8068825f22',
'info_dict': {
'id': '613',
'ext': 'mp4',
'title': 'md5:6ce2d7e8d56eda16d80607b23db7b252',
'description': 'md5:6ce2d7e8d56eda16d80607b23db7b252',
'channel_id': 'europa_press',
'channel': 'Europa Press ✔',
'thumbnail': r're:^https?://.+',
'timestamp': 1635631203,
'upload_date': '20211030',
'duration': 61,
},
}, {
# 2-video post
'url': 'https://t.me/vorposte/29342',
'info_dict': {
'id': 'vorposte-29342',
'title': 'Форпост 29342',
'description': 'md5:9d92e22169a3e136d5d69df25f82c3dc',
},
'playlist_count': 2,
'params': {
'skip_download': True,
},
}, {
# 2-video post with --no-playlist
'url': 'https://t.me/vorposte/29343',
'md5': '1724e96053c18e788c8464038876e245',
'info_dict': {
'id': '29343',
'ext': 'mp4',
'title': 'md5:9d92e22169a3e136d5d69df25f82c3dc',
'description': 'md5:9d92e22169a3e136d5d69df25f82c3dc',
'channel_id': 'vorposte',
'channel': 'Форпост',
'thumbnail': r're:^https?://.+',
'timestamp': 1666384480,
'upload_date': '20221021',
'duration': 35,
},
'params': {
'noplaylist': True,
}
}, {
# 2-video post with 'single' query param
'url': 'https://t.me/vorposte/29342?single',
'md5': 'd20b202f1e41400a9f43201428add18f',
'info_dict': {
'id': '29342',
'ext': 'mp4',
'title': 'md5:9d92e22169a3e136d5d69df25f82c3dc',
'description': 'md5:9d92e22169a3e136d5d69df25f82c3dc',
'channel_id': 'vorposte',
'channel': 'Форпост',
'thumbnail': r're:^https?://.+',
'timestamp': 1666384480,
'upload_date': '20221021',
'duration': 33,
},
}]
def _real_extract(self, url):
channel_id, msg_id = self._match_valid_url(url).group('channel_id', 'id')
embed = self._download_webpage(
url, msg_id, query={'embed': '1', 'single': []}, note='Downloading embed frame')
def clean_text(html_class, html):
text = clean_html(get_element_by_class(html_class, html))
return text.replace('\n', ' ') if text else None
description = clean_text('tgme_widget_message_text', embed)
message = {
'title': description or '',
'description': description,
'channel': clean_text('tgme_widget_message_author', embed),
'channel_id': channel_id,
'timestamp': unified_timestamp(self._search_regex(
r'<time[^>]*datetime="([^"]*)"', embed, 'timestamp', fatal=False)),
}
videos = []
for video in re.findall(r'<a class="tgme_widget_message_video_player(?s:.+?)</time>', embed):
video_url = self._search_regex(
r'<video[^>]+src="([^"]+)"', video, 'video URL', fatal=False)
webpage_url = self._search_regex(
r'<a class="tgme_widget_message_video_player[^>]+href="([^"]+)"',
video, 'webpage URL', fatal=False)
if not video_url or not webpage_url:
continue
formats = [{
'url': video_url,
'ext': 'mp4',
}]
self._sort_formats(formats)
videos.append({
'id': url_basename(webpage_url),
'webpage_url': update_url_query(webpage_url, {'single': True}),
'duration': parse_duration(self._search_regex(
r'<time[^>]+duration[^>]*>([\d:]+)</time>', video, 'duration', fatal=False)),
'thumbnail': self._search_regex(
r'tgme_widget_message_video_thumb"[^>]+background-image:url\(\'([^\']+)\'\)',
video, 'thumbnail', fatal=False),
'formats': formats,
**message,
})
playlist_id = None
if len(videos) > 1 and 'single' not in parse_qs(url, keep_blank_values=True):
playlist_id = f'{channel_id}-{msg_id}'
if self._yes_playlist(playlist_id, msg_id):
return self.playlist_result(
videos, playlist_id, format_field(message, 'channel', f'%s {msg_id}'), description)
else:
return traverse_obj(videos, lambda _, x: x['id'] == msg_id, get_all=False)