With SSL enabled, I'd like to to grab the CN (Common Name) of the user certificate and use that as login authentication method.

I am thinking of the following scenario:

- users with read & write privileges need to have an SSL certificate loaded in their browser. The "Author" field will be pre-set to the CN of the user certificate.

- authorization may be subject to further granularity (e.g. only allow users whose certificate belongs to a certain organization)

- read-only, guest access (without certificate) may or may not be allowed

Is there a way to do that?