yt_dlp/extractor/reddit.py

   1 import random
   2 from urllib.parse import urlparse
   3
   4 from .common import InfoExtractor
   5 from ..utils import (
   6     ExtractorError,
   7     int_or_none,
   8     float_or_none,
   9     try_get,
  10     unescapeHTML,
  11     url_or_none,
  12     traverse_obj
  13 )
  14
  15
  16 class RedditIE(InfoExtractor):
  17     _VALID_URL = r'https?://(?P<subdomain>[^/]+\.)?reddit(?:media)?\.com/r/(?P<slug>[^/]+/comments/(?P<id>[^/?#&]+))'
  18     _TESTS = [{
  19         'url': 'https://www.reddit.com/r/videos/comments/6rrwyj/that_small_heart_attack/',
  20         'info_dict': {
  21             'id': 'zv89llsvexdz',
  22             'ext': 'mp4',
  23             'display_id': '6rrwyj',
  24             'title': 'That small heart attack.',
  25             'thumbnail': r're:^https?://.*\.(?:jpg|png)',
  26             'thumbnails': 'count:4',
  27             'timestamp': 1501941939,
  28             'upload_date': '20170805',
  29             'uploader': 'Antw87',
  30             'duration': 12,
  31             'like_count': int,
  32             'dislike_count': int,
  33             'comment_count': int,
  34             'age_limit': 0,
  35         },
  36         'params': {
  37             'skip_download': True,
  38         },
  39     }, {
  40         # 1080p fallback format
  41         'url': 'https://www.reddit.com/r/aww/comments/90bu6w/heat_index_was_110_degrees_so_we_offered_him_a/',
  42         'md5': '8b5902cfda3006bf90faea7adf765a49',
  43         'info_dict': {
  44             'id': 'gyh95hiqc0b11',
  45             'ext': 'mp4',
  46             'display_id': '90bu6w',
  47             'title': 'Heat index was 110 degrees so we offered him a cold drink. He went for a full body soak instead',
  48             'thumbnail': r're:^https?://.*\.(?:jpg|png)',
  49             'thumbnails': 'count:7',
  50             'timestamp': 1532051078,
  51             'upload_date': '20180720',
  52             'uploader': 'FootLoosePickleJuice',
  53             'duration': 14,
  54             'like_count': int,
  55             'dislike_count': int,
  56             'comment_count': int,
  57             'age_limit': 0,
  58         },
  59     }, {
  60         'url': 'https://www.reddit.com/r/videos/comments/6rrwyj',
  61         'only_matching': True,
  62     }, {
  63         # imgur
  64         'url': 'https://www.reddit.com/r/MadeMeSmile/comments/6t7wi5/wait_for_it/',
  65         'only_matching': True,
  66     }, {
  67         # imgur @ old reddit
  68         'url': 'https://old.reddit.com/r/MadeMeSmile/comments/6t7wi5/wait_for_it/',
  69         'only_matching': True,
  70     }, {
  71         # streamable
  72         'url': 'https://www.reddit.com/r/videos/comments/6t7sg9/comedians_hilarious_joke_about_the_guam_flag/',
  73         'only_matching': True,
  74     }, {
  75         # youtube
  76         'url': 'https://www.reddit.com/r/videos/comments/6t75wq/southern_man_tries_to_speak_without_an_accent/',
  77         'only_matching': True,
  78     }, {
  79         # reddit video @ nm reddit
  80         'url': 'https://nm.reddit.com/r/Cricket/comments/8idvby/lousy_cameraman_finds_himself_in_cairns_line_of/',
  81         'only_matching': True,
  82     }, {
  83         'url': 'https://www.redditmedia.com/r/serbia/comments/pu9wbx/ako_vu%C4%8Di%C4%87_izgubi_izbore_ja_%C4%87u_da_crknem/',
  84         'only_matching': True,
  85     }]
  86
  87     @staticmethod
  88     def _gen_session_id():
  89         id_length = 16
  90         rand_max = 1 << (id_length * 4)
  91         return '%0.*x' % (id_length, random.randrange(rand_max))
  92
  93     def _real_extract(self, url):
  94         subdomain, slug, video_id = self._match_valid_url(url).group('subdomain', 'slug', 'id')
  95
  96         self._set_cookie('.reddit.com', 'reddit_session', self._gen_session_id())
  97         self._set_cookie('.reddit.com', '_options', '%7B%22pref_quarantine_optin%22%3A%20true%7D')
  98         data = self._download_json(f'https://{subdomain}reddit.com/r/{slug}/.json', video_id, fatal=False)
  99         if not data:
 100             # Fall back to old.reddit.com in case the requested subdomain fails
 101             data = self._download_json(f'https://old.reddit.com/r/{slug}/.json', video_id)
 102         data = data[0]['data']['children'][0]['data']
 103         video_url = data['url']
 104
 105         # Avoid recursing into the same reddit URL
 106         if 'reddit.com/' in video_url and '/%s/' % video_id in video_url:
 107             raise ExtractorError('No media found', expected=True)
 108
 109         over_18 = data.get('over_18')
 110         if over_18 is True:
 111             age_limit = 18
 112         elif over_18 is False:
 113             age_limit = 0
 114         else:
 115             age_limit = None
 116
 117         thumbnails = []
 118
 119         def add_thumbnail(src):
 120             if not isinstance(src, dict):
 121                 return
 122             thumbnail_url = url_or_none(src.get('url'))
 123             if not thumbnail_url:
 124                 return
 125             thumbnails.append({
 126                 'url': unescapeHTML(thumbnail_url),
 127                 'width': int_or_none(src.get('width')),
 128                 'height': int_or_none(src.get('height')),
 129             })
 130
 131         for image in try_get(data, lambda x: x['preview']['images']) or []:
 132             if not isinstance(image, dict):
 133                 continue
 134             add_thumbnail(image.get('source'))
 135             resolutions = image.get('resolutions')
 136             if isinstance(resolutions, list):
 137                 for resolution in resolutions:
 138                     add_thumbnail(resolution)
 139
 140         info = {
 141             'title': data.get('title'),
 142             'thumbnails': thumbnails,
 143             'timestamp': float_or_none(data.get('created_utc')),
 144             'uploader': data.get('author'),
 145             'like_count': int_or_none(data.get('ups')),
 146             'dislike_count': int_or_none(data.get('downs')),
 147             'comment_count': int_or_none(data.get('num_comments')),
 148             'age_limit': age_limit,
 149         }
 150
 151         # Check if media is hosted on reddit:
 152         reddit_video = traverse_obj(data, (('media', 'secure_media'), 'reddit_video'), get_all=False)
 153         if reddit_video:
 154             playlist_urls = [
 155                 try_get(reddit_video, lambda x: unescapeHTML(x[y]))
 156                 for y in ('dash_url', 'hls_url')
 157             ]
 158
 159             # Update video_id
 160             display_id = video_id
 161             video_id = self._search_regex(
 162                 r'https?://v\.redd\.it/(?P<id>[^/?#&]+)', reddit_video['fallback_url'],
 163                 'video_id', default=display_id)
 164
 165             dash_playlist_url = playlist_urls[0] or f'https://v.redd.it/{video_id}/DASHPlaylist.mpd'
 166             hls_playlist_url = playlist_urls[1] or f'https://v.redd.it/{video_id}/HLSPlaylist.m3u8'
 167
 168             formats = [{
 169                 'url': unescapeHTML(reddit_video['fallback_url']),
 170                 'height': int_or_none(reddit_video.get('height')),
 171                 'width': int_or_none(reddit_video.get('width')),
 172                 'tbr': int_or_none(reddit_video.get('bitrate_kbps')),
 173                 'acodec': 'none',
 174                 'ext': 'mp4',
 175                 'format_id': 'fallback',
 176                 'format_note': 'DASH video, mp4_dash',
 177             }]
 178             formats.extend(self._extract_m3u8_formats(
 179                 hls_playlist_url, display_id, 'mp4', m3u8_id='hls', fatal=False))
 180             formats.extend(self._extract_mpd_formats(
 181                 dash_playlist_url, display_id, mpd_id='dash', fatal=False))
 182             self._sort_formats(formats)
 183
 184             return {
 185                 **info,
 186                 'id': video_id,
 187                 'display_id': display_id,
 188                 'formats': formats,
 189                 'duration': int_or_none(reddit_video.get('duration')),
 190             }
 191
 192         parsed_url = urlparse(video_url)
 193         if parsed_url.netloc == 'v.redd.it':
 194             self.raise_no_formats('This video is processing', expected=True, video_id=video_id)
 195             return {
 196                 **info,
 197                 'id': parsed_url.path.split('/')[1],
 198                 'display_id': video_id,
 199             }
 200
 201         # Not hosted on reddit, must continue extraction
 202         return {
 203             **info,
 204             'display_id': video_id,
 205             '_type': 'url_transparent',
 206             'url': video_url,
 207         }