deliver key codes -- digital goods shop

[johnwayne77]

hey!

 

i am developing an oscommerce for a digital goods store which sells prepaid telephony codes.

 

I have an option in oscommerce to enable downloads for products and to add an url for each product.

 

This is all i have from oscommerce so i need to get it working just with that.

 

I was thinking of a system that does the following:

 

merchant approves payment -> merchant notify oscommerce that order is ok and proceed with download -> oscommerce runs the script to deliver the key codes in customer email:

 

script:

 

system runs into a list of codes (either located in a .txt, either in the same php), extracts it (cuts it) from the list, put it in a variable, then mail it to the customer.

 

what do you think? any ideas? and advices for these methods?

 

also, if you are into oscommerce maybe u can help me figure out this: let's say i set the download url for product X 'scriptX.php' as i will have different script for each product. when merchant validates the order and sends back the payment notification, what can i do to run the script first and then mail the customer instead of mailing the script to the customer(which is not safe as he could run it a dozen times).

 

Thanks,

help is much appreciated

 

as security measures i was thinking of allowing only my host ip to access the script.