[squid-users] blocking download of special extentions

hi,

i am using this acl for blocking the download of mp3 files

acl mp3_dl urlpath_regex -i '^ftp.*://.*/.*\.(mp3|zip)\?*[^/]*$'
http deny mp3_dl
  
Now i also want to block any ftp urls AND add new extentions like
mpg/mpeg/avi/asf etc without adding new rules. Can this also be done
on a external text file?

Thnaks for your help!

-- 
Best regards
Thomas Schend
dumpmail@gmx.net                          mailto:dumpmail@gmx.net