diff options
| -rwxr-xr-x | youtube-dl | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/youtube-dl b/youtube-dl index 1ad297c26..29afd930f 100755 --- a/youtube-dl +++ b/youtube-dl @@ -721,6 +721,90 @@ class MetacafeIE(InfoExtractor): 'ext': video_extension.decode('utf-8'), }] + +class YoutubeSearchIE(InfoExtractor): + """Information Extractor for YouTube search queries.""" + _VALID_QUERY = r'ytsearch(\d+|all)?:[\s\S]+' + _TEMPLATE_URL = 'http://www.youtube.com/results?search_query=%s&page=%s&gl=US&hl=en' + _VIDEO_INDICATOR = r'href="/watch\?v=.+?"' + _MORE_PAGES_INDICATOR = r'>Next</a>' + _youtube_ie = None + + def __init__(self, youtube_ie, downloader=None): + InfoExtractor.__init__(self, downloader) + self._youtube_ie = youtube_ie + + @staticmethod + def suitable(url): + return (re.match(YoutubeSearchIE._VALID_QUERY, url) is not None) + + def report_download_page(self, query, pagenum): + """Report attempt to download playlist page with given number.""" + self.to_stdout(u'[youtube] query "%s": Downloading page %s' % (query, pagenum)) + + def _real_initialize(self): + self._youtube_ie.initialize() + + def _real_extract(self, query): + mobj = re.match(self._VALID_QUERY, query) + if mobj is None: + self.to_stderr(u'ERROR: invalid search query "%s"' % query) + return [None] + + prefix, query = query.split(':') + prefix = prefix[8:] + if prefix == '': + return self._download_n_results(query, 1) + elif prefix == 'all': + return self._download_n_results(query, -1) + else: + try: + n = int(prefix) + if n <= 0: + self.to_stderr(u'ERROR: invalid download number %s for query "%s"' % (n, query)) + return [None] + return self._download_n_results(query, n) + except ValueError: # parsing prefix as int fails + return self._download_n_results(query, 1) + + def _download_n_results(self, query, n): + """Downloads a specified number of results for a query""" + + video_ids = [] + already_seen = set() + pagenum = 1 + + while True: + self.report_download_page(query, pagenum) + result_url = self._TEMPLATE_URL % (urllib.quote(query.replace(' ', '+')), pagenum) + request = urllib2.Request(result_url, None, std_headers) + try: + page = urllib2.urlopen(request).read() + except (urllib2.URLError, httplib.HTTPException, socket.error), err: + self.to_stderr(u'ERROR: unable to download webpage: %s' % str(err)) + return [None] + + # Extract video identifiers + for mobj in re.finditer(self._VIDEO_INDICATOR, page): + video_id = page[mobj.span()[0]:mobj.span()[1]].split('=')[2][:-1] + if video_id not in already_seen: + video_ids.append(video_id) + already_seen.add(video_id) + if len(video_ids) == n: + # Specified n videos reached + information = [] + for id in video_ids: + information.extend(self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id)) + return information + + if self._MORE_PAGES_INDICATOR not in page: + information = [] + for id in video_ids: + information.extend(self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id)) + return information + + pagenum = pagenum + 1 + class YoutubePlaylistIE(InfoExtractor): """Information Extractor for YouTube playlists.""" @@ -925,6 +1009,7 @@ if __name__ == '__main__': youtube_ie = YoutubeIE() metacafe_ie = MetacafeIE(youtube_ie) youtube_pl_ie = YoutubePlaylistIE(youtube_ie) + youtube_search_ie = YoutubeSearchIE(youtube_ie) # File downloader charset = locale.getdefaultlocale()[1] @@ -946,6 +1031,7 @@ if __name__ == '__main__': 'ignoreerrors': opts.ignoreerrors, 'ratelimit': opts.ratelimit, }) + fd.add_info_extractor(youtube_search_ie) fd.add_info_extractor(youtube_pl_ie) fd.add_info_extractor(metacafe_ie) fd.add_info_extractor(youtube_ie) |