Posted by Ed Mullen on 03/26/06 02:55

Toby Inkster wrote:
> ©® wrote:
>
>> I have *no* idea how to start with this. Anyone care to point me to a
>> tutorial as to how to make this available for purchase (e.g. PayPal) so
>> that once one person purchases a track, they simply do not send the URL
>> to someone else to get the same track free.
>
> It's not an easy matter, so if this is just a one-off thing you may be
> better off using a third-party service.
>
> The first couple of hits here look OK:
>
> http://www.google.com/search?q=sell+digital+files
>
> The basic technique if you wanted to do it yourself would be:
>
> 1. gather any information you want from the user;
> 2. direct the user to your payment service and let them do their stuff;
> 3. receieve the user back from your payment service, who will hopefully
> provide some verification that the user has payed properly, in the
> form of a GET query string or POST data;
> 4. process that data, to make sure the user has paid, and set a cookie on
> their system;
> 5. provide a link to the music file(s);
> 6. each music file should check for the presence of the cookie before
> allowing itself to be downloaded. (Yoy may be able to achieve this
> with Apache configuration directives, or a server-side script.
>

All well and good but once the file is downloaded there is no way to
prevent it from being shared/copied.

--
Ed Mullen
http://edmullen.net
http://mozilla.edmullen.net
http://abington.edmullen.net

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