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:[EMAIL PROTECTED] Sent: Friday, April 16, 2004 11:07 PM To: Adam Aube; [EMAIL PROTECTED] 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:[EMAIL PROTECTED] > Sent: Friday, April 16, 2004 7:44 PM > To: [EMAIL PROTECTED] > Subject: [squid-users] Re: Help, Squid ACL regex_url BYPASSS > > Herman (ISTD) wrote: > > > Currently, I am preventing my users for downloading some files e.g file > > with .bz2 extention. > > > In squid.conf I define as following : > > acl BadUrl url_regex -i "/usr/local/squid/etc/data/BadUrlFile" > > > Add I add this entry to /usr/local/squid/etc/data/BadUrlFile : > > \.bz2$ > > > But some of the users did some trick by adding ? or ?/ in the URL > > > And they successful to bypass my ACL and download the files they wanted. > > > I have try to add "\.bz2?$" and "\.bz2?/$" in to > > /usr/local/squid/etc/data/BadUrlFile file. But it does not work. > > Like with the '.', you need to escape the '?' and '/' with a '\'. > > Adam