Re: [squid-users] Problem blocking files with urlpath_regex acl

John,

On Tue, 18 Jan 2005 JOReilly@itisholdings.com wrote:

> Hi,
>
> I'm having a few problems trying to block file downloads with Squid. I have
> a file called 'restricted_files' with the following contents:
>
> \.7z$
<snip>
> \.gz$
> \.gz?
> \.gz;
<snip>
> \.zoo;
>
> And I have the following setup in my squid.conf:
>
> acl User1 proxy_auth user1
> acl User2 proxy_auth user2
> acl BlockedDownloads urlpath_regex -i "/usr/local/ITIS/restricted_files"
>
> http_access allow User1
> http_access deny BlockedDownloads
> http_access allow User2
>
> Now, if I authenticate as user1, I can download all files with no problems.
> However, if I authenticate as user2, and browse to - for example -
> www.google.co.uk, cache.log is showing that the following URL's are blocked
> because they match 'BlockedDownloads':
>
> http://www.google.co.uk/intl/en-uk/images/logo.gif
> http://www.google.co.uk/favicon.ico
>
> However, these extensions are not in my list! I notice similar results on
> other sites, with files getting blocked that shouldn't be.
>
> Can anyone offer me any help on this?
I believe that the following regex will be matching .gif files:

\.gz?

? means minimal match so it will match either '.g' or '.gz'. You'll nee d
to escape a question mark:

\.gz\?

Hope this helps,

                                Neil.

-- 
Neil Hillard                    hillardn@whl.co.uk
Westland Helicopters Ltd.       http://www.whl.co.uk/
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            views of Westland Helicopters Ltd.