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YoutubeIE: Detect new Vevo style videos
The url_encoded_fmt_stream_map can be found in the video page, but the signature must be decrypted, we get it from the webpage instead of the `get_video_info` pages because we have only discover the algorithm for keys with both sub keys of size 43.
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@ -724,6 +724,16 @@ def _real_extract(self, url):
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# Decide which formats to download
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req_format = self._downloader.params.get('format', None)
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try:
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mobj = re.search(r';ytplayer.config = ({.*?});', video_webpage)
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info = json.loads(mobj.group(1))
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if 'dashmpd' in info['args']:
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# Vevo videos with encrypted signatures
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self.to_screen(u'Vevo video detected.')
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video_info['url_encoded_fmt_stream_map'] = [info['args']['url_encoded_fmt_stream_map']]
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except ValueError:
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pass
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if 'conn' in video_info and video_info['conn'][0].startswith('rtmp'):
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self.report_rtmp_download()
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video_url_list = [(None, video_info['conn'][0])]
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@ -735,6 +745,16 @@ def _real_extract(self, url):
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url = url_data['url'][0]
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if 'sig' in url_data:
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url += '&signature=' + url_data['sig'][0]
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if 's' in url_data:
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def k(s):
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"""Decrypt the key the two subkeys must have a length of 43"""
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(a,b) = s.split('.')
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b = ''.join([b[:8],a[0],b[9:18],b[-4],b[19:39], b[18]])[0:40]
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a = a[-40:]
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s_dec = '.'.join((a,b))[::-1]
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return s_dec
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key = k(url_data['s'][0])
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url += '&signature=' + key
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if 'ratebypass' not in url:
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url += '&ratebypass=yes'
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url_map[url_data['itag'][0]] = url
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