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import re
from .common import InfoExtractor
class UstreamIE(InfoExtractor):
    _VALID_URL = r'https?://www\.ustream\.tv/recorded/(?P<videoID>\d+)'
    IE_NAME = u'ustream'
    def _real_extract(self, url):
        m = re.match(self._VALID_URL, url)
        video_id = m.group('videoID')
        video_url = u'http://tcdn.ustream.tv/video/%s' % video_id
        webpage = self._download_webpage(url, video_id)
        self.report_extraction(video_id)
        video_title = self._html_search_regex(r'data-title="(?P<title>.+)"',
            webpage, u'title')
        uploader = self._html_search_regex(r'data-content-type="channel".*?>(?P<uploader>.*?)</a>',
            webpage, u'uploader', fatal=False, flags=re.DOTALL)
        thumbnail = self._html_search_regex(r'<link rel="image_src" href="(?P<thumb>.*?)"',
            webpage, u'thumbnail', fatal=False)
        info = {
                'id': video_id,
                'url': video_url,
                'ext': 'flv',
                'title': video_title,
                'uploader': uploader,
                'thumbnail': thumbnail,
               }
        return info
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