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<?php
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
declare(strict_types=1);

namespace Magento\Framework\App;

use Magento\Framework\App\Request\InvalidRequestException;

/**
 * Action that's aware of CSRF protection.
 *
 * @api
 */
interface CsrfAwareActionInterface extends ActionInterface
{
    /**
     * Create exception in case CSRF validation failed.
     * Return null if default exception will suffice.
     *
     * @param RequestInterface $request
     *
     * @return InvalidRequestException|null
     */
    public function createCsrfValidationException(
        RequestInterface $request
    ): ?InvalidRequestException;

    /**
     * Perform custom request validation.
     * Return null if default validation is needed.
     *
     * @param RequestInterface $request
     *
     * @return bool|null
     */
    public function validateForCsrf(RequestInterface $request): ?bool;
}