Rewrite CAS authentication module
The Perl-CAS module does not provide enough features (can't read attributes, use a local file to manager proxy tickets), we need to rewrite CAS client code and create a CAS UserDB module.
The Perl-CAS module does not provide enough features (can't read attributes, use a local file to manager proxy tickets), we need to rewrite CAS client code and create a CAS UserDB module.