This package contains a demonstration of a web-application that presents the user a feedback-submission form.

• The application presents the visitor a form in which he can enter the following information:
  • name
  • email-address
  • address
  • feedback/comment
• The application should sanitize and validate the input. Meaning:
  • a "valid" email-address; which is something in the likes of ^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+$; since most mail-clients do not support the full RFC email grammar specifications.
  • a valid Dutch address, which consists of a street name and number, extension designation, a postal code in the format 0000XX.
• The application prevents spamming.
• The application prevents identical submits from the same user.
• The application provides a view on all feedback submissions.

1. Make sure the required dependencies are installed. These are:
   • pip3
   • setuptools
2. Run make install.

Invoke ./run_demo.

Visit / to submit feedback and /list to view it.

• There is no real concurrency model (e.g. threaded or forked) to handle concurrent requests.
• System interrupts are not handled gracefully.
• The datamodel is not properly normalized to 6NF (not really necessary).
• The database does not enforce constraints on the postal code, or the country code (is assumed to be ISO 3166).
• Django forms (used in demo.forms) are stateful, a stateless solution would be better.
• CSRF protection is not implemented.