Protect link with cookies?

[Artifex Maximus]

Hello!

2009/6/9 Igor Sysoev <is at rambler-co.ru>:
> On Tue, Jun 09, 2009 at 01:30:50PM +0200, Artifex Maximus wrote:
>
>> I am pretty newbie to nginx and having problem on protecting my links.
>> I am using valid_referers but is it possible using cookies for make it
>> stronger?
>>
>> For example I set cookie uid with nginx's userid in 'location / {}'
>> and check somehow under 'location /download/ {}' for cookie uid. Is it
>> possible or just a dream? Userid was just an idea and not necessary.
>> And any other ideas are welcome as well because cheating referer is
>> easy task.
>
>    location /download/ {
>        if ($cooke_NAME = '') {
>            return 403;
>        }
>    }

Looks nice. Thank you Igor!

Bye,
Zsolt