newsupernova/vendor/magento/module-paypal/Controller/Payflow/CancelPayment.php

<?php
/**
 *
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
namespace Magento\Paypal\Controller\Payflow;

use Magento\Framework\App\CsrfAwareActionInterface;
use Magento\Framework\App\Request\InvalidRequestException;
use Magento\Framework\App\RequestInterface;

class CancelPayment extends \Magento\Paypal\Controller\Payflow implements CsrfAwareActionInterface
{
    /**
     * @inheritDoc
     */
    public function createCsrfValidationException(
        RequestInterface $request
    ): ?InvalidRequestException {
        return null;
    }

    /**
     * @inheritDoc
     */
    public function validateForCsrf(RequestInterface $request): ?bool
    {
        return true;
    }

    /**
     * When a customer cancel payment from payflow gateway.
     *
     * @return void
     */
    public function execute()
    {
        $this->_view->loadLayout(false);
        $gotoSection = $this->_cancelPayment();
        $redirectBlock = $this->_view->getLayout()->getBlock($this->_redirectBlockName);
        $redirectBlock->setGotoSection($gotoSection);
        $this->_view->renderLayout();
    }
}