yt_dlp/extractor/reddit.py

   1 import random
   2 import urllib.parse
   3
   4 from .common import InfoExtractor
   5 from ..utils import (
   6     ExtractorError,
   7     float_or_none,
   8     int_or_none,
   9     traverse_obj,
  10     try_get,
  11     unescapeHTML,
  12     url_or_none,
  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         # videos embedded in reddit text post
  61         'url': 'https://www.reddit.com/r/KamenRider/comments/wzqkxp/finale_kamen_rider_revice_episode_50_family_to/',
  62         'playlist_count': 2,
  63         'info_dict': {
  64             'id': 'wzqkxp',
  65             'title': 'md5:72d3d19402aa11eff5bd32fc96369b37',
  66         },
  67     }, {
  68         'url': 'https://www.reddit.com/r/videos/comments/6rrwyj',
  69         'only_matching': True,
  70     }, {
  71         # imgur
  72         'url': 'https://www.reddit.com/r/MadeMeSmile/comments/6t7wi5/wait_for_it/',
  73         'only_matching': True,
  74     }, {
  75         # imgur @ old reddit
  76         'url': 'https://old.reddit.com/r/MadeMeSmile/comments/6t7wi5/wait_for_it/',
  77         'only_matching': True,
  78     }, {
  79         # streamable
  80         'url': 'https://www.reddit.com/r/videos/comments/6t7sg9/comedians_hilarious_joke_about_the_guam_flag/',
  81         'only_matching': True,
  82     }, {
  83         # youtube
  84         'url': 'https://www.reddit.com/r/videos/comments/6t75wq/southern_man_tries_to_speak_without_an_accent/',
  85         'only_matching': True,
  86     }, {
  87         # reddit video @ nm reddit
  88         'url': 'https://nm.reddit.com/r/Cricket/comments/8idvby/lousy_cameraman_finds_himself_in_cairns_line_of/',
  89         'only_matching': True,
  90     }, {
  91         'url': 'https://www.redditmedia.com/r/serbia/comments/pu9wbx/ako_vu%C4%8Di%C4%87_izgubi_izbore_ja_%C4%87u_da_crknem/',
  92         'only_matching': True,
  93     }]
  94
  95     @staticmethod
  96     def _gen_session_id():
  97         id_length = 16
  98         rand_max = 1 << (id_length * 4)
  99         return '%0.*x' % (id_length, random.randrange(rand_max))
 100
 101     def _real_extract(self, url):
 102         subdomain, slug, video_id = self._match_valid_url(url).group('subdomain', 'slug', 'id')
 103
 104         self._set_cookie('.reddit.com', 'reddit_session', self._gen_session_id())
 105         self._set_cookie('.reddit.com', '_options', '%7B%22pref_quarantine_optin%22%3A%20true%7D')
 106         data = self._download_json(f'https://{subdomain}reddit.com/r/{slug}/.json', video_id, fatal=False)
 107         if not data:
 108             # Fall back to old.reddit.com in case the requested subdomain fails
 109             data = self._download_json(f'https://old.reddit.com/r/{slug}/.json', video_id)
 110         data = data[0]['data']['children'][0]['data']
 111         video_url = data['url']
 112
 113         over_18 = data.get('over_18')
 114         if over_18 is True:
 115             age_limit = 18
 116         elif over_18 is False:
 117             age_limit = 0
 118         else:
 119             age_limit = None
 120
 121         thumbnails = []
 122
 123         def add_thumbnail(src):
 124             if not isinstance(src, dict):
 125                 return
 126             thumbnail_url = url_or_none(src.get('url'))
 127             if not thumbnail_url:
 128                 return
 129             thumbnails.append({
 130                 'url': unescapeHTML(thumbnail_url),
 131                 'width': int_or_none(src.get('width')),
 132                 'height': int_or_none(src.get('height')),
 133             })
 134
 135         for image in try_get(data, lambda x: x['preview']['images']) or []:
 136             if not isinstance(image, dict):
 137                 continue
 138             add_thumbnail(image.get('source'))
 139             resolutions = image.get('resolutions')
 140             if isinstance(resolutions, list):
 141                 for resolution in resolutions:
 142                     add_thumbnail(resolution)
 143
 144         info = {
 145             'title': data.get('title'),
 146             'thumbnails': thumbnails,
 147             'timestamp': float_or_none(data.get('created_utc')),
 148             'uploader': data.get('author'),
 149             'like_count': int_or_none(data.get('ups')),
 150             'dislike_count': int_or_none(data.get('downs')),
 151             'comment_count': int_or_none(data.get('num_comments')),
 152             'age_limit': age_limit,
 153         }
 154
 155         parsed_url = urllib.parse.urlparse(video_url)
 156
 157         # Check for embeds in text posts, or else raise to avoid recursing into the same reddit URL
 158         if 'reddit.com' in parsed_url.netloc and f'/{video_id}/' in parsed_url.path:
 159             entries = []
 160             for media in traverse_obj(data, ('media_metadata', ...), expected_type=dict):
 161                 if not media.get('id') or media.get('e') != 'RedditVideo':
 162                     continue
 163                 formats = []
 164                 if media.get('hlsUrl'):
 165                     formats.extend(self._extract_m3u8_formats(
 166                         unescapeHTML(media['hlsUrl']), video_id, 'mp4', m3u8_id='hls', fatal=False))
 167                 if media.get('dashUrl'):
 168                     formats.extend(self._extract_mpd_formats(
 169                         unescapeHTML(media['dashUrl']), video_id, mpd_id='dash', fatal=False))
 170                 if formats:
 171                     entries.append({
 172                         'id': media['id'],
 173                         'display_id': video_id,
 174                         'formats': formats,
 175                         **info,
 176                     })
 177             if entries:
 178                 return self.playlist_result(entries, video_id, info.get('title'))
 179             raise ExtractorError('No media found', expected=True)
 180
 181         # Check if media is hosted on reddit:
 182         reddit_video = traverse_obj(data, (('media', 'secure_media'), 'reddit_video'), get_all=False)
 183         if reddit_video:
 184             playlist_urls = [
 185                 try_get(reddit_video, lambda x: unescapeHTML(x[y]))
 186                 for y in ('dash_url', 'hls_url')
 187             ]
 188
 189             # Update video_id
 190             display_id = video_id
 191             video_id = self._search_regex(
 192                 r'https?://v\.redd\.it/(?P<id>[^/?#&]+)', reddit_video['fallback_url'],
 193                 'video_id', default=display_id)
 194
 195             dash_playlist_url = playlist_urls[0] or f'https://v.redd.it/{video_id}/DASHPlaylist.mpd'
 196             hls_playlist_url = playlist_urls[1] or f'https://v.redd.it/{video_id}/HLSPlaylist.m3u8'
 197
 198             formats = [{
 199                 'url': unescapeHTML(reddit_video['fallback_url']),
 200                 'height': int_or_none(reddit_video.get('height')),
 201                 'width': int_or_none(reddit_video.get('width')),
 202                 'tbr': int_or_none(reddit_video.get('bitrate_kbps')),
 203                 'acodec': 'none',
 204                 'vcodec': 'h264',
 205                 'ext': 'mp4',
 206                 'format_id': 'fallback',
 207                 'format_note': 'DASH video, mp4_dash',
 208             }]
 209             formats.extend(self._extract_m3u8_formats(
 210                 hls_playlist_url, display_id, 'mp4', m3u8_id='hls', fatal=False))
 211             formats.extend(self._extract_mpd_formats(
 212                 dash_playlist_url, display_id, mpd_id='dash', fatal=False))
 213
 214             return {
 215                 **info,
 216                 'id': video_id,
 217                 'display_id': display_id,
 218                 'formats': formats,
 219                 'duration': int_or_none(reddit_video.get('duration')),
 220             }
 221
 222         if parsed_url.netloc == 'v.redd.it':
 223             self.raise_no_formats('This video is processing', expected=True, video_id=video_id)
 224             return {
 225                 **info,
 226                 'id': parsed_url.path.split('/')[1],
 227                 'display_id': video_id,
 228             }
 229
 230         # Not hosted on reddit, must continue extraction
 231         return {
 232             **info,
 233             'display_id': video_id,
 234             '_type': 'url_transparent',
 235             'url': video_url,
 236         }