Need guidance to start with Zend ACL

Question

I am currently working on a site that requires ACL and as I am using Zend, it makes sense for me to make use of their ACL class but I have little to zero idea of how to do t

Answer 1

This solution may prove to be the simplest implementation of Zend_Acl.

Example:

class UserController extends Zend_Controller_Action {

    public function preDispatch(){

        $resource = 'user_area';
        $privilege = $this->_request->getActionName();
        if (!$this->_helper->acl($resource, $privilege)) $this->_redirect();

    }

}

Zend/Controller/Action/Helper/Acl.php

class Zend_Controller_Action_Helper_Acl extends Zend_Controller_Action_Helper_Abstract {

    protected $acl;
    protected $role;

    protected function getAcl(){

        if (is_null($this->acl)){

            $acl = new Zend_Acl();

            $acl->addResource(new Zend_Acl_Resource('user_area'));
            $acl->addResource(new Zend_Acl_Resource('customer_area'), 'user_area');
            $acl->addResource(new Zend_Acl_Resource('web_area'));

            $acl->addRole(new Zend_Acl_Role('guest'));      
            $acl->addRole(new Zend_Acl_Role('user'), 'guest');

            $acl->allow('guest', 'web_area');
            $acl->allow('guest', 'user_area', array(
                'forgot-password',
                'login'
            ));
            $acl->allow('user', 'user_area');
            $acl->allow('customer', 'customer_area');

            $this->acl = $acl;

        }

        return $this->acl;

    }

    protected function getRole(){

        if (is_null($this->role)){

            $session = new Zend_Session_Namespace('session');
            $role = (isset($session->userType)) ? $session->userType : 'guest';
            $this->role = $role;

        }

        return $this->role;

    }

    public function direct($resource, $privilege = null){

        $acl = $this->getAcl();
        $role = $this->getRole();
        $allowed = $acl->isAllowed($role, $resource, $privilege);
        return $allowed;

    }

}