I d'like to develop a module (release-date within 2 years :(. Due insufficient knowledte i ask for ideas, hints and links. I will post results here in the future or link to a project page

Short:
incoming E-Mail should generate ioncube-license-file for customers and auto-send it back.

Long:
An Incoming e-mail (confirmation of purchase from shop) should be searched with regular expressions (Name of the purchased "Plugins", "customer e-mail" and the customers entered "Client Number"). Based on the "Plugin" a "Product" is searched (in products, an additional field is applied with an "encryption hash" for this "Plugin"). The ioncube-script now is called and uses the supplied values ​​as well as those found in the product, to call the ioncube licensing script. The script generates a license file which is automatically sent back to the customer.

In a further step, the generated license files should be logged. Several License-Template could be choosen. Scripts can be customized