Abstract class

[modir]

I would recommend that you define as well an abstract class which needs to be implemented. This way you make sure that all authentication plugins have the required methods defined.

[vboctor]

The AuthFlags are now defined as a flag. AuthFlags are also now created in the context of a specific user (whether in db or unknown user), the plugin can then decide based on the passed user whether it should return null or return auth flags for that user. Hence, enabling per user authentication policy.

Let me know if this handles your request. Note that the SamplePlugin and Auth Plugins PR are now updated to reflect such design.