4 from .common 
import InfoExtractor
 
   6     compat_urllib_parse_urlparse
, 
  13 class Tube8IE(InfoExtractor
): 
  14     _VALID_URL 
= r
'^(?:https?://)?(?:www\.)?(?P<url>tube8\.com/[^/]+/[^/]+/(?P<videoid>[0-9]+)/?)' 
  16         u
'url': u
'http://www.tube8.com/teen/kasia-music-video/229795/', 
  17         u
'file': u
'229795.mp4', 
  18         u
'md5': u
'e9e0b0c86734e5e3766e653509475db0', 
  20             u
"description": u
"hot teen Kasia grinding",  
  21             u
"uploader": u
"unknown",  
  22             u
"title": u
"Kasia music video", 
  27     def _real_extract(self
, url
): 
  28         mobj 
= re
.match(self
._VALID
_URL
, url
) 
  29         video_id 
= mobj
.group('videoid') 
  30         url 
= 'http://www.' + mobj
.group('url') 
  32         req 
= compat_urllib_request
.Request(url
) 
  33         req
.add_header('Cookie', 'age_verified=1') 
  34         webpage 
= self
._download
_webpage
(req
, video_id
) 
  36         video_title 
= self
._html
_search
_regex
(r
'videotitle      ="([^"]+)', webpage
, u
'title') 
  37         video_description 
= self
._html
_search
_regex
(r
'>Description:</strong>(.+?)<', webpage
, u
'description', fatal
=False) 
  38         video_uploader 
= self
._html
_search
_regex
(r
'>Submitted by:</strong>(?:\s|<[^>]*>)*(.+?)<', webpage
, u
'uploader', fatal
=False) 
  39         thumbnail 
= self
._html
_search
_regex
(r
'"image_url":"([^"]+)', webpage
, u
'thumbnail', fatal
=False) 
  41             thumbnail 
= thumbnail
.replace('\\/', '/') 
  43         video_url 
= self
._html
_search
_regex
(r
'"video_url":"([^"]+)', webpage
, u
'video_url') 
  44         if webpage
.find('"encrypted":true')!=-1: 
  45             password 
= self
._html
_search
_regex
(r
'"video_title":"([^"]+)', webpage
, u
'password') 
  46             video_url 
= aes_decrypt_text(video_url
, password
, 32).decode('utf-8') 
  47         path 
= compat_urllib_parse_urlparse(video_url
).path
 
  48         extension 
= os
.path
.splitext(path
)[1][1:] 
  49         format 
= path
.split('/')[4].split('_')[:2] 
  50         format 
= "-".join(format
) 
  54             'uploader': video_uploader
, 
  56             'thumbnail': thumbnail
, 
  57             'description': video_description
,