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New IE: YouTube channels (closes #396)
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@ -1578,6 +1578,56 @@ class YoutubePlaylistIE(InfoExtractor):
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return
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class YoutubeChannelIE(InfoExtractor):
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"""Information Extractor for YouTube channels."""
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_VALID_URL = r"^(?:https?://)?(?:youtu\.be|(?:\w+\.)?youtube(?:-nocookie)?\.com)/channel/([0-9A-Za-z_-]+)(?:/.*)?$"
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_TEMPLATE_URL = 'http://www.youtube.com/channel/%s/videos?sort=da&flow=list&view=0&page=%s&gl=US&hl=en'
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_MORE_PAGES_INDICATOR = r'yt-uix-button-content">Next' # TODO
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IE_NAME = u'youtube:channel'
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def report_download_page(self, channel_id, pagenum):
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"""Report attempt to download channel page with given number."""
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self._downloader.to_screen(u'[youtube] Channel %s: Downloading page #%s' % (channel_id, pagenum))
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def _real_extract(self, url):
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# Extract channel id
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mobj = re.match(self._VALID_URL, url)
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if mobj is None:
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self._downloader.trouble(u'ERROR: invalid url: %s' % url)
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return
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# Download channel pages
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channel_id = mobj.group(1)
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video_ids = []
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pagenum = 1
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while True:
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self.report_download_page(channel_id, pagenum)
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url = self._TEMPLATE_URL % (channel_id, pagenum)
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request = urllib2.Request(url)
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try:
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page = urllib2.urlopen(request).read()
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except (urllib2.URLError, httplib.HTTPException, socket.error), err:
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self._downloader.trouble(u'ERROR: unable to download webpage: %s' % str(err))
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return
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# Extract video identifiers
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ids_in_page = []
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for mobj in re.finditer(r'href="/watch\?v=([0-9A-Za-z_-]+)&', page):
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if mobj.group(1) not in ids_in_page:
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ids_in_page.append(mobj.group(1))
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video_ids.extend(ids_in_page)
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if re.search(self._MORE_PAGES_INDICATOR, page) is None:
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break
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pagenum = pagenum + 1
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for id in video_ids:
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self._downloader.download(['http://www.youtube.com/watch?v=%s' % id])
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return
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class YoutubeUserIE(InfoExtractor):
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"""Information Extractor for YouTube users."""
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@ -328,6 +328,7 @@ def gen_extractors():
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"""
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return [
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YoutubePlaylistIE(),
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YoutubeChannelIE(),
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YoutubeUserIE(),
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YoutubeSearchIE(),
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YoutubeIE(),
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