- ClioPatria
- user
- user_db.pl -- User administration
- set_user_database/1
 - user_add/2
 - user_del/1
 - set_user_property/2
 - openid_add_server/2
 - openid_del_server/1
 - openid_set_property/2
 - openid_current_server/1
 - openid_server_properties/2
 - openid_server_property/2
 - current_user/1
 - user_property/2
 - validate_password/2
 - password_hash/2
 - logged_on/1
 - logged_on/2
 - ensure_logged_on/1
 - authorized/1
 - check_permission/2
 - deny_all_users/1
 - login/1
 - logout/1
 
 - openid.pl -- OpenID server and client access
 - preferences.pl -- User preference handling
 
 - user_db.pl -- User administration
 
 - user
 
- ensure_logged_on(-User)
 - Make sure we are logged in and return the current user. See openid_user/3 for details.