Zend Framework Auth plugin

gistfile1.aw

<?php

class App_Controller_Plugin_Auth extends Zend_Controller_Plugin_Abstract
{
	public function preDispatch(Zend_Controller_Request_Abstract $request)
	{
		$auth = Zend_Auth::getInstance();

		if (!$auth->hasIdentity()
						&& !($request->getControllerName() == "session"
						&& $request->getActionName() == "login"))
		{
			$request->setControllerName("session")
							->setActionName("login")
							->setModuleName("")
							->setDispatched(false);
		}
	}
}