.. _acl-drivers-label:

============================
 ACL (Access Control List)
============================

ACL extension points allows you to use your favorite ACL system. GeoPrisma's default acl is the 'NoACL' driver.

An access control list (ACL) is a list of permissions attached to an object.  The list specifies who or what is allowed to access the object and what operations are allowed to be performed on the object.  In a typical ACL, each entry in the list specifies a subject and an operation.

In geoprisma an ACL is used to check if a resource is available for a user.

Architecture
---------------
Geoprisma's ACL is designed to allow many implementations of an ACL library.  You can set Geoprisma to use NoACL, to use BorealisACL or your private ACL implementation.

.. image:: acl.bmp
    :align: center

ACL Driver
---------------
.. toctree::
    :maxdepth: 1
    
    buildyours    
    noacl
    borealisacl