ugh a software pay site written in php.....it makes me feel dirty...

At 04:56 PM 5/29/2002 -0400, 1LT John W. Holmes wrote:
>session_start();
>if(!isset($_SESSION["did_pay"]))
>{ header("Location: http://www.example.com/pay_first.php";); }
>//show download code....
>
>Obviously you set $_SESSION['did_pay'] to a value once they, umm, pay.
>
>---John Holmes...
>
>----- Original Message -----
>From: "Ron Stagg" <[EMAIL PROTECTED]>
>To: <[EMAIL PROTECTED]>
>Sent: Wednesday, May 29, 2002 4:47 PM
>Subject: [PHP] ******************* Secure product download
>*******************
>
>
>I am building a site where visitors can purchase and download software.
>To purchase a software product, the visitor must submit credit card
>info.  Once the purchase has been approved, the user is given a link
>from which he/she may download the requested software.  This link MUST
>only be accessible to those who have paid.  I have tried a number of
>different and creative methods, but none give me the security I need.  I
>don't want the user to be able bookmark the URL or email the URL to
>friends so that they can download the software as well.  I am using PHP
>sessions combined with MySQL user accounts to authenticate users
>throughout the rest of the site.  How can I get this to work for
>downloads?
>
>Is this even possible within the open realm of the browser?  Have any of
>you solved a similar problem?  I welcome any ideas.
>
>Ron Stagg
>
>
>
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