I want to build a new module for DNN 6.2.4. Basically I have entire sections of a website that's only viewable if user enters a valid barcode from a receipt. We validate barcodes by checking if it's a multiple of 3. If it's not, then the the user can never see this private section of the website.


I want to build my own module that will take a form variable like $_REQUEST['barcode_number'], and check if it's a multiple of 3. If it is, then set the Session['is_valid_user'] = 1;

Then on my private pages, I check if Session['is_valid_user'] == 1. If it is, then let the view the private pages. If not, then redirect them to an external website like google.

Is this the right approach for development? Or is there an off-the-shelf DNN module that I can use?