[ic] Setting order discount using JavaScript

Stefan Hornburg Racke interchange-users@interchange.redhat.com
Mon May 13 09:30:19 2002


Scott Kennedy <scott@custweb.com> writes:

> On Mon, 13 May 2002 cfm@maine.com wrote:
> 
> |On Sun, May 12, 2002 at 10:19:49PM -0500, Scott Kennedy wrote:
> |> I'm trying to set a discount for the entire order using a combination of
> |> JavaScript and Perl.  The code is on the checkout page which may be found at,
> |>
> |>     http://neatway.com/cgi-bin/altchoice/index.html
> |>
> |
> |Be careful that a visitor cannot alter that javascript and post the
> |page with his own discount.  That's a pretty common hack to many
> |carts that carry pricing in the page.
> 
> Good point.  Anything I can do to help prevent this?

Ignore the price given by the CGI parameters and calculate it on the
server side again.

Ciao
        Racke

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