I use a pattern of
\.bz2(\?.*)?$
Which matches '.bz2' at the end of a URL or '.bz2?' followed by =
anything.
The un-escaped '?' matches 0 or 1 occurrence of the pattern in =
parenthesis, which in this case is a question-mark followed by zero or =
more characters.

Mike Mitchell
-----Original Message-----
From: Herman (ISTD) [mailto:herman_ang@toyota.co.id]=20
Sent: Friday, April 16, 2004 11:07 PM
To: Adam Aube; squid-users@squid-cache.org
Subject: RE: [squid-users] Re: Help, Squid ACL regex_url BYPASSS

Thank you all,
At last, I just use \.bz2 entry, since the user may just put ?? or ???
behind the URL.

Regards,

herman

> -----Original Message-----
> From: Adam Aube [mailto:aaube01@baker.edu]
> Sent: Friday, April 16, 2004 7:44 PM
> To: squid-users@squid-cache.org
> Subject: [squid-users] Re: Help, Squid ACL regex_url BYPASSS
>=20
> Herman (ISTD) wrote:
>=20
> > Currently, I am preventing my users for downloading some files e.g

file
> > with .bz2 extention.

>=20
> > In squid.conf I define as following :
> > acl BadUrl url_regex -i

"/usr/local/squid/etc/data/BadUrlFile"
>=20
> > Add I add this entry to /usr/local/squid/etc/data/BadUrlFile :
> > \.bz2$

>=20
> > But some of the users did some trick by adding ? or ?/ in the URL

>=20
> > And they successful to bypass my ACL and download the files they

wanted.
>=20
> > I have try to add "\.bz2?$" and "\.bz2?/$" in to
> > /usr/local/squid/etc/data/BadUrlFile file. But it does not work.

>=20
> Like with the '.', you need to escape the '?' and '/' with a '\'.
>=20
> Adam