NAME
    Catalyst::Plugin::Authorization::Roles - Role based authorization for
    Catalyst based on Catalyst::Plugin::Authentication.

SYNOPSIS
            use Catalyst qw/
                    Authentication
                    Authentication::Store::ThatSupportsRoles
                    Authorization::Roles
            /;

            sub delete : Local {
                    my ( $self, $c ) = @_;

                    $c->assert_user_roles( qw/admin/ ); # only admins can delete

                    $c->model("Foo")->delete_it();
            }

DESCRIPTION
    Role based authentication is very simple: every user has a list of
    roles, which that user is allowed to assume.

    Whenever an area that is restricted for e.g. admins, or members, or any
    other role is accessed a check is made to see whether or not the user
    has all the required roles.

    In this plugin the user objects being checked have the "roles" method
    invoked. This method is supposed to return a list of the roles the user
    is allowed to assume. The roles may be any item that can be compared
    using Set::Object.

    For example, if you have a CRUD application, for every mutating action
    you probably want to check that the user is allowed to edit. To do this,
    create an editor role, and add that role to every user who is allowed to
    edit.

            sub edit : Local {
                    my ( $self, $c ) = @_;
                    $c->assert_user_roles( qw/editor/ );
                    $c->model("TheModel")->make_changes();
            }

METHODS
    assert_user_roles [ $user ], @roles
        Cheks that the user (as supplied by the first argument, or, if
        omitted, "<$c-"user>>) has the specified roles.

        If for any reason ("<$c-"user>> is not defined, the user is missing
        a role, etc) the check fails, an error is thrown.

    check_user_roles [ $user ], @roles
        Takes the same args as "assert_user_roles", and performs the same
        check, but instead of throwing errors returns a boolean value.

SEE ALSO
    Catalyst::Plugin::Authentication

AUTHOR
    Yuval Kogman, "nothingmuch@woobling.org"

COPYRIGHT & LICNESE
            Copyright (c) 2005 the aforementioned authors. All rights
            reserved. This program is free software; you can redistribute
            it and/or modify it under the same terms as Perl itself.