From 6324fd1d7494449c168805db8e3f9fa45396367b Mon Sep 17 00:00:00 2001 From: Filippo Valsorda Date: Tue, 26 Feb 2013 10:39:26 +0100 Subject: Switch YTPlaylistIE to API (relevant: #586); fixes #651; fixes #673; fixes #661 --- youtube_dl/InfoExtractors.py | 103 +++++++++++++++++++++++++------------------ 1 file changed, 59 insertions(+), 44 deletions(-) (limited to 'youtube_dl/InfoExtractors.py') diff --git a/youtube_dl/InfoExtractors.py b/youtube_dl/InfoExtractors.py index d661d517d..021579ce0 100755 --- a/youtube_dl/InfoExtractors.py +++ b/youtube_dl/InfoExtractors.py @@ -15,6 +15,7 @@ import email.utils import xml.etree.ElementTree import random import math +import operator from .utils import * @@ -1662,22 +1663,40 @@ class YahooSearchIE(InfoExtractor): class YoutubePlaylistIE(InfoExtractor): """Information Extractor for YouTube playlists.""" - _VALID_URL = r'(?:(?:https?://)?(?:\w+\.)?youtube\.com/(?:(?:course|view_play_list|my_playlists|artist|playlist)\?.*?(p|a|list)=|user/.*?/user/|p/|user/.*?#[pg]/c/)(?:PL|EC)?|PL|EC)([0-9A-Za-z-_]{10,})(?:/.*?/([0-9A-Za-z_-]+))?.*' - _TEMPLATE_URL = 'http://www.youtube.com/%s?%s=%s&page=%s&gl=US&hl=en' - _VIDEO_INDICATOR_TEMPLATE = r'/watch\?v=(.+?)&([^&"]+&)*list=.*?%s' - _MORE_PAGES_INDICATOR = u"Next \N{RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK}" + _VALID_URL = r"""(?: + (?:https?://)? + (?:\w+\.)? + youtube\.com/ + (?: + (?:course|view_play_list|my_playlists|artist|playlist) + \? .*? (p|a|list)= + | user/.*?/user/ + | p/ + | user/.*?#[pg]/c/ + ) + (?:PL|EC)? + |PL|EC) + ([0-9A-Za-z-_]{10,}) + (?:/.*?/([0-9A-Za-z_-]+))? + .*""" + _TEMPLATE_URL = 'https://gdata.youtube.com/feeds/api/playlists/%s?max-results=%i&start-index=%i&v=2&alt=json' + _MAX_RESULTS = 50 IE_NAME = u'youtube:playlist' def __init__(self, downloader=None): InfoExtractor.__init__(self, downloader) + def suitable(self, url): + """Receives a URL and returns True if suitable for this IE.""" + return re.match(self._VALID_URL, url, re.VERBOSE) is not None + def report_download_page(self, playlist_id, pagenum): """Report attempt to download playlist page with given number.""" self._downloader.to_screen(u'[youtube] PL %s: Downloading page #%s' % (playlist_id, pagenum)) def _real_extract(self, url): # Extract playlist id - mobj = re.match(self._VALID_URL, url) + mobj = re.match(self._VALID_URL, url, re.VERBOSE) if mobj is None: self._downloader.trouble(u'ERROR: invalid url: %s' % url) return @@ -1687,55 +1706,51 @@ class YoutubePlaylistIE(InfoExtractor): self._downloader.download([mobj.group(3)]) return - # Download playlist pages - # prefix is 'p' as default for playlists but there are other types that need extra care - playlist_prefix = mobj.group(1) - if playlist_prefix == 'a': - playlist_access = 'artist' - else: - playlist_prefix = 'p' - playlist_access = 'view_play_list' + # Download playlist videos from API playlist_id = mobj.group(2) - video_ids = [] - pagenum = 1 + page_num = 1 + videos = [] while True: - self.report_download_page(playlist_id, pagenum) - url = self._TEMPLATE_URL % (playlist_access, playlist_prefix, playlist_id, pagenum) - request = compat_urllib_request.Request(url) + self.report_download_page(playlist_id, page_num) + + url = self._TEMPLATE_URL % (playlist_id, self._MAX_RESULTS, self._MAX_RESULTS * (page_num - 1) + 1) try: - page = compat_urllib_request.urlopen(request).read().decode('utf-8') + page = compat_urllib_request.urlopen(url).read().decode('utf8') except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err: self._downloader.trouble(u'ERROR: unable to download webpage: %s' % compat_str(err)) return - # Extract video identifiers - ids_in_page = [] - for mobj in re.finditer(self._VIDEO_INDICATOR_TEMPLATE % playlist_id, page): - if mobj.group(1) not in ids_in_page: - ids_in_page.append(mobj.group(1)) - video_ids.extend(ids_in_page) + try: + response = json.loads(page) + except ValueError as err: + self._downloader.trouble(u'ERROR: Invalid JSON in API response: ' + compat_str(err)) + return - if self._MORE_PAGES_INDICATOR not in page: + videos += [(entry['yt$position']['$t'], entry['content']['src']) for entry in response['feed']['entry']] + + if len(response['feed']['entry']) < self._MAX_RESULTS: break - pagenum = pagenum + 1 + page_num += 1 - total = len(video_ids) + videos = map(operator.itemgetter(1), sorted(videos)) + + total = len(videos) playliststart = self._downloader.params.get('playliststart', 1) - 1 playlistend = self._downloader.params.get('playlistend', -1) if playlistend == -1: - video_ids = video_ids[playliststart:] + videos = videos[playliststart:] else: - video_ids = video_ids[playliststart:playlistend] + videos = videos[playliststart:playlistend] - if len(video_ids) == total: + if len(videos) == total: self._downloader.to_screen(u'[youtube] PL %s: Found %i videos' % (playlist_id, total)) else: - self._downloader.to_screen(u'[youtube] PL %s: Found %i videos, downloading %i' % (playlist_id, total, len(video_ids))) + self._downloader.to_screen(u'[youtube] PL %s: Found %i videos, downloading %i' % (playlist_id, total, len(videos))) - for id in video_ids: - self._downloader.download(['http://www.youtube.com/watch?v=%s' % id]) + for video in videos: + self._downloader.download([video]) return @@ -3605,9 +3620,9 @@ class TweetReelIE(InfoExtractor): 'upload_date': upload_date } return [info] - + class SteamIE(InfoExtractor): - _VALID_URL = r"""http://store.steampowered.com/ + _VALID_URL = r"""http://store.steampowered.com/ (?Pvideo|app)/ #If the page is only for videos or for a game (?P\d+)/? (?P\d*)(?P\??) #For urltype == video we sometimes get the videoID @@ -3707,7 +3722,7 @@ class RBMARadioIE(InfoExtractor): class YouPornIE(InfoExtractor): """Information extractor for youporn.com.""" _VALID_URL = r'^(?:https?://)?(?:\w+\.)?youporn\.com/watch/(?P[0-9]+)/(?P[^/]+)' - + def _print_formats(self, formats): """Print all available formats""" print(u'Available formats:') @@ -3769,8 +3784,8 @@ class YouPornIE(InfoExtractor): links = re.findall(LINK_RE, download_list_html) if(len(links) == 0): raise ExtractorError(u'ERROR: no known formats available for video') - - self._downloader.to_screen(u'[youporn] Links found: %d' % len(links)) + + self._downloader.to_screen(u'[youporn] Links found: %d' % len(links)) formats = [] for link in links: @@ -3821,7 +3836,7 @@ class YouPornIE(InfoExtractor): return return [format] - + class PornotubeIE(InfoExtractor): """Information extractor for pornotube.com.""" @@ -3893,7 +3908,7 @@ class YouJizzIE(InfoExtractor): embed_page_url = result.group(0).strip() video_id = result.group('videoid') - + webpage = self._download_webpage(embed_page_url, video_id) # Get the video URL @@ -4053,7 +4068,7 @@ class TEDIE(InfoExtractor): class MySpassIE(InfoExtractor): _VALID_URL = r'http://www.myspass.de/.*' - + def _real_extract(self, url): META_DATA_URL_TEMPLATE = 'http://www.myspass.de/myspass/includes/apps/video/getvideometadataxml.php?id=%s' @@ -4063,12 +4078,12 @@ class MySpassIE(InfoExtractor): url_parent_path, video_id = os.path.split(url_path) if not video_id: _, video_id = os.path.split(url_parent_path) - + # get metadata metadata_url = META_DATA_URL_TEMPLATE % video_id metadata_text = self._download_webpage(metadata_url, video_id) metadata = xml.etree.ElementTree.fromstring(metadata_text.encode('utf-8')) - + # extract values from metadata url_flv_el = metadata.find('url_flv') if url_flv_el is None: -- cgit v1.2.3