NAME
    Authorization::AccessControl - hybrid RBAC/ABAC access control

SYNOPSIS
      use Authorization::AccessControl qw(acl);

      acl
        ->role('admin')
          ->grant(User => 'create')
          ->grant(User => 'delete')
          ->grant(User => 'update')
        ->role
          ->grant(User => 'search')
          ->grant(User => 'Update', { self => true })
          ->grant(Book => 'search')
          ->grant(Book => 'update', { owned => true })
          ->grant(Book => 'delete', { owned => true });

      acl->role("super")->grant(Book => "delete"); 

      acl->request->with_resource('User')->with_action->('create');          # no

      acl->request->with_roles('admin')->with_resource('User')
        ->with_action->('create')->permitted;                                # yes

      acl->request->with_action('search')->with_resource('User')->permitted; # yes

      acl->request->with_roles('admin')->with_resource('User')
        ->with_action('create')->permitted;                                  # yes

      acl->request->with_resource('Book')->with_action('delete')
        ->permitted;                                                         # no

      acl->request->with_resource('Book')->with_action('delete')
        ->with_attributes({ owned => true })
        ->permitted;                                                         # yes
  
      my $user = {id => 4};
      my $get_attrs = sub($obj) { { owned => $obj->{owner_id} == $user->{id} } };
      acl->request->with_resource('Book')->with_action('delete')
        ->with_get_attrs($get_attrs)
        ->yield(sub () { { owner_id => 4, name => "War & Peace" } })
        ->granted(sub($entity) { say $entity })                      # "War & Peace"
        ->is_granted;                                                        # yes

DESCRIPTION
    This is a lightweight library for implementing fine-grained access
    control in applications via an intuitive and expressive interface. It
    features a hybrid approach, including aspects of both Role-based access
    control (RBAC) and Attribute-based access control (ABAC).

    At a high level, the workflow is to populate an access control list with
    privilege grants, then initiate a request against that list with the
    specific environment parameters, finally checking if the request is
    permitted by the list

FUNCTIONS
  acl
    Returns a global persistent instance of
    Authorization::AccessControl::ACL. There's nothing special about this
    instance other than being globally accessible -- if your usage requires
    it, you can manually make as many ACL instances as you wish and maintain
    them as you like. This function exists purely as a convenience

    Not exported by default.

AUTHOR
    Mark Tyrrell "<mark@tyrrminal.dev>"

LICENSE
    Copyright (c) 2024 Mark Tyrrell

    Permission is hereby granted, free of charge, to any person obtaining a
    copy of this software and associated documentation files (the
    "Software"), to deal in the Software without restriction, including
    without limitation the rights to use, copy, modify, merge, publish,
    distribute, sublicense, and/or sell copies of the Software, and to
    permit persons to whom the Software is furnished to do so, subject to
    the following conditions:

    The above copyright notice and this permission notice shall be included
    in all copies or substantial portions of the Software.

    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
    IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
    CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
    TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
    SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.