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SimpleAuth: An object to handle authentication via simple user-hashes.
An extremely basic user authentication system using a simple hash-based approach. It has no specifications as to the user model, other than it needs to store the hash provided by the generate_hash method.
It has an optional paranoid mode, which forces the use of the hash in the is_user() check to ensure the user is valid.
The default storage model is to store the SimpleAuth object in the session. We use the Nano4 Session helper to achieve this. You can disable the autostoring, and store it yourself, or you can create a subclass and override the store(), load() and update() methods.