<?php

class Admin_Plugin_AuthCheck extends Zend_Controller_Plugin_Abstract {

    public function  __construct() {

    }

    public function preDispatch(Zend_Controller_Request_Abstract $request) {
        $controller = $request->getControllerName();
        $action = $request->getActionName();

        if($controller != 'auth') {
            $valid = Admin_Model_Authmanager::isLogedinAs('admin');
            if($valid == false) {
                $request->setControllerName('auth')
                        ->setActionName('login');
            }
        }
    }

}


?>


and the controller

<?php

<?php

class Admin_AuthController extends Zend_Controller_Action {
    public function init() {
        $this->_helper->layout->setLayout('admin');
    }

    public function indexAction() {
        $valid = Admin_Model_Authmanager::isLogedinAs('admin');
        if($valid)
            $this->_redirect('/admin/');
    }

    public function loginAction() {

        $user = $this->getRequest()->getParam('user');
        $pass = $this->getRequest()->getParam('pass');

        if($user == null || $pass == null)
            $this->_redirect('/admin/auth');

        Admin_Model_Authmanager::login($user, $pass);

        $valid = Admin_Model_Authmanager::isLogedinAs('admin');
        if($valid)
            $this->_redirect('/admin/');
        else
            $this->_forward('fail', 'auth', 'admin', array('user' => $user,
                    'pass' => $pass));

    }
    public function logoutAction() {
        Admin_Model_Authmanager::logout();
        $this->_redirect('admin/');
    }

    public function failAction() {
        $user = $this->getRequest()->getParam('user');
        $pass = $this->getRequest()->getParam('pass');
        $this->view->username   = $user;
        $this->view->password   = $pass;
    }

}