Mine

<?php

class Pvac_Controller_Action_Helper_Acl extends Zend_Controller_Action_Helper_Abstract
{
    protected $_action;
    protected $_auth;
    protected $_acl;
    protected $_controllerName;
    public function __construct(Zend_View_Interface $view = null,array $options = array())
	  {
       $this->_auth = Zend_Auth::getInstance();            
       $this->_acl = $options['acl'];                              
  	}
  /**
    * Hook into action controller initialization
    * @return void
    */
	  public function init()                                          
	  {
       $this->_action = $this->getActionController();
       // add resource for this controller
       $controller = $this->_action->getRequest()->getControllerName();
       if(!$this->_acl->has($controller)) {
           $this->_acl->add(new Zend_Acl_Resource($controller));
       }
	  }

/**
  * Proxy to the underlying Zend_Acl's allow() function.
  *
  * We use the controller's name as the resource and the
  * action name(s) as the privilege(s)
  *
  * @param Zend_Acl_Role_Interface|string|array       $roles
  * @param string|array                               $actions
  * @uses   Zend_Acl::setRule()
  * @return Places_Controller_Action_Helper_Acl Provides a fluent interface
  */
	public function allow($roles = null, $actions = null)
	{
     $resource = $this->_controllerName;
     $this->_acl->allow($roles, $resource, $actions);
     return $this;
	}
/**
  * Proxy to the underlying Zend_Acl's deny() function.
  *
  * We use the controller's name as the resource and the
  * action name(s) as the privilege(s)
  *
  * @param Zend_Acl_Role_Interface|string|array       $roles
  * @param string|array                               $actions
  * @uses   Zend_Acl::setRule()
  * @return Places_Controller_Action_Helper_Acl Provides a fluent interface
  */
	public function deny($roles = null, $actions = null)
	{
     $resource = $this->_controllerName;
     $this->_acl->allow($roles, $resource, $actions);
     return $this;
	}

}