mirror of
https://github.com/yt-dlp/yt-dlp.git
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Merge pull request #151 from wlritchi/youtube-playlist-polymer
RFC: youtube: Polymer UI and JSON endpoints for playlists
This commit is contained in:
Tom-Oliver Heidel
GitHub
commit
00c38ef28d
1 changed files with 130 additions and 186 deletions
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@ -36,6 +36,7 @@
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get_element_by_attribute,
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get_element_by_id,
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int_or_none,
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js_to_json,
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mimetype2ext,
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orderedSet,
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parse_codecs,
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@ -70,6 +71,8 @@ class YoutubeBaseInfoExtractor(InfoExtractor):
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_LOGIN_REQUIRED = False
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_PLAYLIST_ID_RE = r'(?:PL|LL|EC|UU|FL|RD|UL|TL|PU|OLAK5uy_)[0-9A-Za-z-_]{10,}'
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_INITIAL_DATA_RE = r'(?:window\["ytInitialData"\]|ytInitialData)\W?=\W?({.*?});'
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_YTCFG_DATA_RE = r"ytcfg.set\(({.*?})\)"
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_YOUTUBE_CLIENT_HEADERS = {
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'x-youtube-client-name': '1',
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@ -274,7 +277,6 @@ def warn(message):
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def _download_webpage_handle(self, *args, **kwargs):
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query = kwargs.get('query', {}).copy()
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query['disable_polymer'] = 'true'
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kwargs['query'] = query
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return super(YoutubeBaseInfoExtractor, self)._download_webpage_handle(
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*args, **compat_kwargs(kwargs))
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@ -297,16 +299,61 @@ def _real_initialize(self):
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class YoutubeEntryListBaseInfoExtractor(YoutubeBaseInfoExtractor):
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# Extract entries from page with "Load more" button
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def _entries(self, page, playlist_id):
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more_widget_html = content_html = page
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mobj_reg = r'(?:(?:data-uix-load-more-href="[^"]+?;continuation=)|(?:"continuation":"))(?P<more>[^"]+)"'
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for page_num in itertools.count(1):
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for entry in self._process_page(content_html):
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def _find_entries_in_json(self, extracted):
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entries = []
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c = {}
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def _real_find(obj):
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if obj is None or isinstance(obj, str):
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return
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if type(obj) is list:
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for elem in obj:
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_real_find(elem)
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if type(obj) is dict:
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if self._is_entry(obj):
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entries.append(obj)
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return
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if 'continuationCommand' in obj:
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c['continuation'] = obj
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return
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for _, o in obj.items():
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_real_find(o)
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_real_find(extracted)
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return entries, try_get(c, lambda x: x["continuation"])
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def _entries(self, page, playlist_id, max_pages=None):
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seen = []
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yt_conf = {}
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for m in re.finditer(self._YTCFG_DATA_RE, page):
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parsed = self._parse_json(m.group(1), playlist_id,
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transform_source=js_to_json, fatal=False)
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if parsed:
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yt_conf.update(parsed)
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data_json = self._parse_json(self._search_regex(self._INITIAL_DATA_RE, page, 'ytInitialData'), None)
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for page_num in range(1, max_pages + 1) if max_pages is not None else itertools.count(1):
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entries, continuation = self._find_entries_in_json(data_json)
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processed = self._process_entries(entries, seen)
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if not processed:
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break
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for entry in processed:
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yield entry
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mobj = re.search(mobj_reg, more_widget_html)
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if not mobj:
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if not continuation or not yt_conf:
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break
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continuation_token = try_get(continuation, lambda x: x['continuationCommand']['token'])
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continuation_url = try_get(continuation, lambda x: x['commandMetadata']['webCommandMetadata']['apiUrl'])
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if not continuation_token or not continuation_url:
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break
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count = 0
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@ -315,12 +362,23 @@ def _entries(self, page, playlist_id):
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try:
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# Downloading page may result in intermittent 5xx HTTP error
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# that is usually worked around with a retry
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more = self._download_json(
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'https://www.youtube.com/browse_ajax?ctoken=%s' % mobj.group('more'), playlist_id,
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'Downloading page #%s%s'
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% (page_num, ' (retry #%d)' % count if count else ''),
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data_json = self._download_json(
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'https://www.youtube.com%s' % continuation_url,
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playlist_id,
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'Downloading continuation page #%s%s' % (page_num, ' (retry #%d)' % count if count else ''),
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transform_source=uppercase_escape,
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headers=self._YOUTUBE_CLIENT_HEADERS)
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query={
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'key': try_get(yt_conf, lambda x: x['INNERTUBE_API_KEY'])
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},
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data=bytes(json.dumps({
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'context': try_get(yt_conf, lambda x: x['INNERTUBE_CONTEXT']),
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'continuation': continuation_token
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}), encoding='utf-8'),
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headers={
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'Content-Type': 'application/json'
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}
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)
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break
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except ExtractorError as e:
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if isinstance(e.cause, compat_HTTPError) and e.cause.code in (500, 503):
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@ -329,31 +387,30 @@ def _entries(self, page, playlist_id):
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continue
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raise
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content_html = more['content_html']
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if not content_html.strip():
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# Some webpages show a "Load more" button but they don't
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# have more videos
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break
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more_widget_html = more['load_more_widget_html']
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def _extract_title(self, renderer):
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title = try_get(renderer, lambda x: x['title']['runs'][0]['text'], compat_str)
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if title:
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return title
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return try_get(renderer, lambda x: x['title']['simpleText'], compat_str)
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class YoutubePlaylistBaseInfoExtractor(YoutubeEntryListBaseInfoExtractor):
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def _process_page(self, content):
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for video_id, video_title in self.extract_videos_from_page(content):
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yield self.url_result(video_id, 'Youtube', video_id, video_title)
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def _is_entry(self, obj):
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return 'videoId' in obj
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def extract_videos_from_page_impl(self, video_re, page, ids_in_page, titles_in_page):
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for mobj in re.finditer(video_re, page):
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# The link with index 0 is not the first video of the playlist (not sure if still actual)
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if 'index' in mobj.groupdict() and mobj.group('id') == '0':
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def _process_entries(self, entries, seen):
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ids_in_page = []
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titles_in_page = []
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for renderer in entries:
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video_id = try_get(renderer, lambda x: x['videoId'])
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video_title = self._extract_title(renderer)
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if video_id is None or video_title is None:
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# we do not have a videoRenderer or title extraction broke
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continue
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video_id = mobj.group('id')
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video_title = unescapeHTML(
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mobj.group('title')) if 'title' in mobj.groupdict() else None
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if video_title:
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video_title = video_title.strip()
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if video_title == '► Play all':
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video_title = None
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try:
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idx = ids_in_page.index(video_id)
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if video_title and not titles_in_page[idx]:
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@ -362,19 +419,17 @@ def extract_videos_from_page_impl(self, video_re, page, ids_in_page, titles_in_p
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ids_in_page.append(video_id)
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titles_in_page.append(video_title)
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def extract_videos_from_page(self, page):
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ids_in_page = []
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titles_in_page = []
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self.extract_videos_from_page_impl(
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self._VIDEO_RE, page, ids_in_page, titles_in_page)
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return zip(ids_in_page, titles_in_page)
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for video_id, video_title in zip(ids_in_page, titles_in_page):
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yield self.url_result(video_id, 'Youtube', video_id, video_title)
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class YoutubePlaylistsBaseInfoExtractor(YoutubeEntryListBaseInfoExtractor):
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def _process_page(self, content):
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for playlist_id in orderedSet(re.findall(
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r'"/?playlist\?list=([0-9A-Za-z-_]{10,})"',
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content)):
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def _is_entry(self, obj):
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return 'playlistId' in obj
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def _process_entries(self, entries, seen):
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for playlist_id in orderedSet(try_get(r, lambda x: x['playlistId']) for r in entries):
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yield self.url_result(
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'https://www.youtube.com/playlist?list=%s' % playlist_id, 'YoutubePlaylist')
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@ -3241,11 +3296,7 @@ class YoutubePlaylistsIE(YoutubePlaylistsBaseInfoExtractor):
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}]
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class YoutubeSearchBaseInfoExtractor(YoutubePlaylistBaseInfoExtractor):
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_VIDEO_RE = r'href="\s*/watch\?v=(?P<id>[0-9A-Za-z_-]{11})(?:[^"]*"[^>]+\btitle="(?P<title>[^"]+))?'
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class YoutubeSearchIE(SearchInfoExtractor, YoutubeSearchBaseInfoExtractor):
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class YoutubeSearchIE(SearchInfoExtractor, YoutubePlaylistBaseInfoExtractor):
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IE_DESC = 'YouTube.com searches'
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# there doesn't appear to be a real limit, for example if you search for
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# 'python' you get more than 8.000.000 results
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@ -3342,11 +3393,10 @@ class YoutubeSearchDateIE(YoutubeSearchIE):
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_SEARCH_PARAMS = 'CAI%3D'
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class YoutubeSearchURLIE(YoutubeSearchBaseInfoExtractor):
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class YoutubeSearchURLIE(YoutubePlaylistBaseInfoExtractor):
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IE_DESC = 'YouTube.com search URLs'
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IE_NAME = 'youtube:search_url'
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_VALID_URL = r'https?://(?:www\.)?youtube\.com/results\?(.*?&)?(?:search_query|q)=(?P<query>[^&]+)(?:[&]|$)'
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_SEARCH_DATA = r'(?:window\["ytInitialData"\]|ytInitialData)\W?=\W?({.*?});'
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_TESTS = [{
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'url': 'https://www.youtube.com/results?baz=bar&search_query=youtube-dl+test+video&filters=video&lclk=video',
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'playlist_mincount': 5,
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@ -3358,63 +3408,20 @@ class YoutubeSearchURLIE(YoutubeSearchBaseInfoExtractor):
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'only_matching': True,
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}]
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def _find_videos_in_json(self, extracted):
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videos = []
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def _real_find(obj):
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if obj is None or isinstance(obj, str):
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return
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if type(obj) is list:
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for elem in obj:
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_real_find(elem)
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if type(obj) is dict:
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def _process_json_dict(self, obj, videos, c):
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if "videoId" in obj:
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videos.append(obj)
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return
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for _, o in obj.items():
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_real_find(o)
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_real_find(extracted)
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return videos
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def extract_videos_from_page_impl(self, page, ids_in_page, titles_in_page):
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search_response = self._parse_json(self._search_regex(self._SEARCH_DATA, page, 'ytInitialData'), None)
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result_items = self._find_videos_in_json(search_response)
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for renderer in result_items:
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video_id = try_get(renderer, lambda x: x['videoId'])
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video_title = try_get(renderer, lambda x: x['title']['runs'][0]['text']) or try_get(renderer, lambda x: x['title']['simpleText'])
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if video_id is None or video_title is None:
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# we do not have a videoRenderer or title extraction broke
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continue
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video_title = video_title.strip()
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try:
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idx = ids_in_page.index(video_id)
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if video_title and not titles_in_page[idx]:
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titles_in_page[idx] = video_title
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except ValueError:
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ids_in_page.append(video_id)
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titles_in_page.append(video_title)
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def extract_videos_from_page(self, page):
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ids_in_page = []
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titles_in_page = []
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self.extract_videos_from_page_impl(page, ids_in_page, titles_in_page)
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return zip(ids_in_page, titles_in_page)
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if "nextContinuationData" in obj:
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c["continuation"] = obj["nextContinuationData"]
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return
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def _real_extract(self, url):
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mobj = re.match(self._VALID_URL, url)
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query = compat_urllib_parse_unquote_plus(mobj.group('query'))
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webpage = self._download_webpage(url, query)
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return self.playlist_result(self._process_page(webpage), playlist_title=query)
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return self.playlist_result(self._entries(webpage, query, max_pages=5), playlist_title=query)
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class YoutubeShowIE(YoutubePlaylistsBaseInfoExtractor):
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@ -3436,14 +3443,12 @@ def _real_extract(self, url):
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'https://www.youtube.com/show/%s/playlists' % playlist_id)
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class YoutubeFeedsInfoExtractor(YoutubeBaseInfoExtractor):
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class YoutubeFeedsInfoExtractor(YoutubePlaylistBaseInfoExtractor):
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"""
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Base class for feed extractors
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Subclasses must define the _FEED_NAME and _PLAYLIST_TITLE properties.
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"""
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_LOGIN_REQUIRED = True
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_FEED_DATA = r'(?:window\["ytInitialData"\]|ytInitialData)\W?=\W?({.*?});'
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_YTCFG_DATA = r"ytcfg.set\(({.*?})\)"
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@property
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def IE_NAME(self):
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@ -3452,53 +3457,15 @@ def IE_NAME(self):
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def _real_initialize(self):
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self._login()
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def _find_videos_in_json(self, extracted):
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videos = []
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c = {}
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def _real_find(obj):
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if obj is None or isinstance(obj, str):
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return
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if type(obj) is list:
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for elem in obj:
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_real_find(elem)
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if type(obj) is dict:
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if "videoId" in obj:
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videos.append(obj)
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return
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if "nextContinuationData" in obj:
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c["continuation"] = obj["nextContinuationData"]
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return
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for _, o in obj.items():
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_real_find(o)
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_real_find(extracted)
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return videos, try_get(c, lambda x: x["continuation"])
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def _entries(self, page):
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info = []
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yt_conf = self._parse_json(self._search_regex(self._YTCFG_DATA, page, 'ytcfg.set', default="null"), None, fatal=False)
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search_response = self._parse_json(self._search_regex(self._FEED_DATA, page, 'ytInitialData'), None)
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for page_num in itertools.count(1):
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video_info, continuation = self._find_videos_in_json(search_response)
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def _process_entries(self, entries, seen):
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new_info = []
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for v in video_info:
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for v in entries:
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v_id = try_get(v, lambda x: x['videoId'])
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if not v_id:
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continue
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have_video = False
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for old in info:
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for old in seen:
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if old['videoId'] == v_id:
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have_video = True
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break
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@ -3507,41 +3474,18 @@ def _entries(self, page):
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new_info.append(v)
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if not new_info:
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break
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info.extend(new_info)
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return
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seen.extend(new_info)
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for video in new_info:
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yield self.url_result(try_get(video, lambda x: x['videoId']), YoutubeIE.ie_key(), video_title=try_get(video, lambda x: x['title']['runs'][0]['text']) or try_get(video, lambda x: x['title']['simpleText']))
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if not continuation or not yt_conf:
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break
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search_response = self._download_json(
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'https://www.youtube.com/browse_ajax', self._PLAYLIST_TITLE,
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'Downloading page #%s' % page_num,
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transform_source=uppercase_escape,
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query={
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"ctoken": try_get(continuation, lambda x: x["continuation"]),
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"continuation": try_get(continuation, lambda x: x["continuation"]),
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"itct": try_get(continuation, lambda x: x["clickTrackingParams"])
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},
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headers={
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"X-YouTube-Client-Name": try_get(yt_conf, lambda x: x["INNERTUBE_CONTEXT_CLIENT_NAME"]),
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"X-YouTube-Client-Version": try_get(yt_conf, lambda x: x["INNERTUBE_CONTEXT_CLIENT_VERSION"]),
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"X-Youtube-Identity-Token": try_get(yt_conf, lambda x: x["ID_TOKEN"]),
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"X-YouTube-Device": try_get(yt_conf, lambda x: x["DEVICE"]),
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"X-YouTube-Page-CL": try_get(yt_conf, lambda x: x["PAGE_CL"]),
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"X-YouTube-Page-Label": try_get(yt_conf, lambda x: x["PAGE_BUILD_LABEL"]),
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"X-YouTube-Variants-Checksum": try_get(yt_conf, lambda x: x["VARIANTS_CHECKSUM"]),
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})
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yield self.url_result(try_get(video, lambda x: x['videoId']), YoutubeIE.ie_key(), video_title=self._extract_title(video))
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def _real_extract(self, url):
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page = self._download_webpage(
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'https://www.youtube.com/feed/%s' % self._FEED_NAME,
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self._PLAYLIST_TITLE)
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return self.playlist_result(
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self._entries(page), playlist_title=self._PLAYLIST_TITLE)
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return self.playlist_result(self._entries(page, self._PLAYLIST_TITLE),
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playlist_title=self._PLAYLIST_TITLE)
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class YoutubeWatchLaterIE(YoutubePlaylistIE):
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