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-rwxr-xr-xyoutube_dl/InfoExtractors.py25
1 files changed, 25 insertions, 0 deletions
diff --git a/youtube_dl/InfoExtractors.py b/youtube_dl/InfoExtractors.py
index f25732bf5..39d2ef9d4 100755
--- a/youtube_dl/InfoExtractors.py
+++ b/youtube_dl/InfoExtractors.py
@@ -379,6 +379,17 @@ class YoutubeIE(InfoExtractor):
"""Indicate the download will use the RTMP protocol."""
self.to_screen(u'RTMP download detected')
+ @staticmethod
+ def _decrypt_signature(s):
+ """Decrypt the key the two subkeys must have a length of 43"""
+ (a,b) = s.split('.')
+ if len(a) != 43 or len(b) != 43:
+ raise ExtractorError(u'Unable to decrypt signature, subkeys lengths not valid')
+ b = ''.join([b[:8],a[0],b[9:18],b[-4],b[19:39], b[18]])[0:40]
+ a = a[-40:]
+ s_dec = '.'.join((a,b))[::-1]
+ return s_dec
+
def _get_available_subtitles(self, video_id):
self.report_video_subtitles_download(video_id)
request = compat_urllib_request.Request('http://video.google.com/timedtext?hl=en&type=list&v=%s' % video_id)
@@ -724,6 +735,17 @@ class YoutubeIE(InfoExtractor):
# Decide which formats to download
req_format = self._downloader.params.get('format', None)
+ try:
+ mobj = re.search(r';ytplayer.config = ({.*?});', video_webpage)
+ info = json.loads(mobj.group(1))
+ args = info['args']
+ if args.get('ptk','') == 'vevo' or 'dashmpd':
+ # Vevo videos with encrypted signatures
+ self.to_screen(u'Vevo video detected.')
+ video_info['url_encoded_fmt_stream_map'] = [args['url_encoded_fmt_stream_map']]
+ except ValueError:
+ pass
+
if 'conn' in video_info and video_info['conn'][0].startswith('rtmp'):
self.report_rtmp_download()
video_url_list = [(None, video_info['conn'][0])]
@@ -735,6 +757,9 @@ class YoutubeIE(InfoExtractor):
url = url_data['url'][0]
if 'sig' in url_data:
url += '&signature=' + url_data['sig'][0]
+ if 's' in url_data:
+ signature = self._decrypt_signature(url_data['s'][0])
+ url += '&signature=' + signature
if 'ratebypass' not in url:
url += '&ratebypass=yes'
url_map[url_data['itag'][0]] = url