Magento: Getting back shopping cart items after order fails

(generally Mage/Checkout/controllers/OnepageController.php)

<?php
public function failureAction()
{
    $lastQuoteId = $this->getOnepage()->getCheckout()->getLastQuoteId();
    $lastOrderId = $this->getOnepage()->getCheckout()->getLastOrderId();


    if ($lastQuoteId && $lastOrderId) {
        $orderModel = Mage::getModel('sales/order')->load($lastOrderId);
        if($orderModel->canCancel()) {
            
            $quote = Mage::getModel('sales/quote')->load($lastQuoteId);
            $quote->setIsActive(true)->save();
            
            $orderModel->cancel();
            $orderModel->setStatus('canceled');
            $orderModel->save();

            Mage::getSingleton('core/session')->setFailureMsg('order_failed');
            Mage::getSingleton('checkout/session')->setFirstTimeChk('0');
            $this->_redirect('kcheckout/index/payment', array("_forced_secure" => true));
            return;
        }
    }
    if (!$lastQuoteId || !$lastOrderId) {
        $this->_redirect('checkout/cart', array("_forced_secure" => true));
        return;
    }

    $this->loadLayout();
    $this->renderLayout();
}

?>