Redirection issues

[Maxim Dounin]

Hello!

On Mon, Jun 24, 2013 at 08:58:29AM -0400, TECK wrote:

> Hello everyone,
> 
> I'm currently using Nginx 1.4.1 on CentOS 6.4 64bits and trying to perform a
> redirect of this type:
> location /alpha {
>     location ~ ^/alpha/script.+([\d]+)$ {
>         return 301 /beta/info/$1/;
>     }
> }
> 
> The originating location is /alpha/script.php?id=328.
> The redirected location is /beta/info/328/.
> 
> For some reason, the above redirect returns a 404 with the URL:
> http://www.domain.com/beta/script.php
> Which does not exist anymore. It looks like the URI is not parsed from the
> regex?
> I also tried this format, without success:
> location ~ ^/alpha/script\.php?id=([\d]+)$ {

Query string isn't considered by location matching.  If you want 
to test request arguments, you have to do it inside a location 
matched, like this:

    location = /alpha/script.php {
        if ($arg_id) {
            return 301 /beta/info/$arg_id/;
        }

        ...
    }

In this particular case test is likely useless, and just a return 
will be enough.

-- 
Maxim Dounin
http://nginx.org/en/donation.html