Skip to content 952 B
Newer Older
bmajor's avatar
bmajor committed
# cadcAccessControl

## Description
The cadcAccessControl module contains the shared model classes and exceptions used by the access control clients and server.  It also contains the UserClient and GMSClient (group management service client).

bmajor's avatar
bmajor committed
## Object Model
The CADC User Authorization Model is a model for representing users and groups.

In the system, a user is uniquely identified by one Principal (e.g. NumericPrincipal) but can have a number of other  identities for different contexts:

- HttpPrincipal: Web user identity associated with Simple HHTP User Password access.
- X500Principal: X509 certificate identity.
- NumericPrincipal: An numeric identity associated with a user. Typically, used internally within a system.
- OpenIdPrincipal: An OpenID identity.

Groups represet associations of users. Groups have an owner, administive members, and actual members.  Members can be groups or users.

![User Object Model](doc/AccessControl.png)