Re: [squid-users] Re: Squid and Splash page

From: Amos Jeffries <>
Date: Thu, 29 Dec 2011 15:47:11 +1300

On 28/12/2011 3:19 p.m., Ming Pun wrote:
> Thanks for the prompt response. It is very useful. I was playing
> external_acl_type to understand how it works.
> a couple of questions
> - when a request did not pass external acl , I got a HTTP 403. How
> can I make it to return 401 instead?

That is automatic when the %LOGIN tag is set for the helper input
format. %LOGIN pulls credentials out of HTTP authentication headers.

Alternatively the latest squid can attach a deny_info display or
redirect with custom status code when the ACL test is last on an access
line (ie "http_acces deny").

> - how do I write an external acl program to support concurrency? I
> followed some example on the internet. The program basically parses
> stdio for input parameters, and writes out the result to stdout?

Yes. The helper protocol is documented here

Received on Thu Dec 29 2011 - 02:47:21 MST

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