Rewrite http_referer

[Maxim Dounin]

Hello!

On Mon, Mar 30, 2009 at 05:16:00PM -0400, n3uro5i5 wrote:

> Hi, i want to catch request from a determinate referer website and redirect it to my root path.
> 
> I try this:
> 
>  if ($http_referer ~* "my_referer.com"){
>    rewrite (.*) / redirect;
>   }
> 
> But when i did't firefox say me that the request is in a neverending loop. 
> So i need to rewrite the request referer header before redirect it.
> 
> I tried it like this:
> 
>  if ($http_referer ~* "my_referer.com"){
>    rewrite (.*) / reset_header redirect;
>   }
> 
> location /reset_header{
>   proxy_set_header Referer "";
>   rewrite (.*) / redirect;
> }
> 
> But i don't get any results.
> 
> Any suggestion? Thanxs!!

You can't change referer, it's set by browser.  You should avoid 
redirect on destination page instead.  E.g.

    location = / {
        # no redirect for /

        ...
    }

    location / {
        if ($http_referer ...) {
            rewrite ^ / redirect;
        }

        ...
    }

Maxim Dounin