I want to start a "rate my"-style site. The rated objects are mostly texts. I want it to be rather simple. Features I need:
- object rating (thumb up, thumb down)
- object comments
- object tags
- related object presentation based on tags
- user authentication and management
- private message system
- sanity checks for text inputs (i.e. prevention of code injections)
- open source
- runs on GNU/Linux
I would gladly take something that is tailored for my scenario but a generic framework would be fine too. I simply don't want to write stuff like user authentication that is been written a million times and risking security flaws.
Programming language is irrelevant but python/php preferred.
EDIT: I chose Django.