Re: Advise needed - rateing/voteing system
| From: | David Otton | Date: | Mon, 07 Jul 2003 19:45:00 +0000 |
| Subject: | Re: Advise needed - rateing/voteing system | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-154225@lists.php.net to get a copy of this message | ||
On Mon, 7 Jul 2003 21:07:14 +0100, you wrote:
>check sessions
>if session is not set
>check cookie
>if cookie is not set
>checkip
>if ip is not set
>do a reverse ip check
>if that too comes clean then allow the person a vote
>
>as you can see i am trying my best to make sure that the visitor only votes
>once, if he/she changes machines this wont work of course but as far as i
>can see this should take care of around 99% of the visitors and allow a fair
>voteing system...
What happens when many users are behind a single proxy? Or two people log on
to the same machine?
Just go with the cookie, and recognise that ballot stuffing is inevitable
without user authentication, IMO.