Your IP : 216.73.217.13
<?php
declare(strict_types=1);
/*
* This file is part of the TYPO3 CMS project.
*
* It is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, either version 2
* of the License, or any later version.
*
* For the full copyright and license information, please read the
* LICENSE.txt file that was distributed with this source code.
*
* The TYPO3 project - inspiring people to share!
*/
/*
* Inspired by and partially taken from the Neos.Form package (www.neos.io)
*/
namespace TYPO3\CMS\Form\ViewHelpers;
use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Fluid\ViewHelpers\FormViewHelper as FluidFormViewHelper;
use TYPO3\CMS\Form\Domain\Runtime\FormRuntime;
use TYPO3Fluid\Fluid\Core\ViewHelper\TagBuilder;
/**
* Custom form ViewHelper that renders the form state instead of referrer fields
*
* Scope: frontend
*/
final class FormViewHelper extends FluidFormViewHelper
{
/**
* Renders hidden form fields for referrer information about
* the current request.
*
* @return string Hidden fields with referrer information
*/
protected function renderHiddenReferrerFields(): string
{
$formRuntime = $this->getFormRuntime();
$prefix = $this->prefixFieldName($this->getFormObjectName());
$markup = $this->createHiddenInputElement(
$prefix . '[__state]',
$this->hashService->appendHmac(
base64_encode(serialize($formRuntime->getFormState()))
)
);
// ONLY assign `__session` if form is performing (uncached)
if ($formRuntime->canProcessFormSubmission() && $formRuntime->getFormSession() !== null) {
$markup .= $this->createHiddenInputElement(
$prefix . '[__session]',
$formRuntime->getFormSession()->getAuthenticatedIdentifier()
);
}
return $markup;
}
protected function createHiddenInputElement(string $name, string $value): string
{
$tagBuilder = GeneralUtility::makeInstance(TagBuilder::class, 'input');
$tagBuilder->addAttribute('type', 'hidden');
$tagBuilder->addAttribute('name', $name);
$tagBuilder->addAttribute('value', $value);
return $tagBuilder->render();
}
/**
* We do NOT return NULL as in this case, the Form ViewHelpers do not enter $objectAccessorMode.
* However, we return the form identifier.
*/
protected function getFormObjectName(): string
{
return $this->getFormRuntime()->getFormDefinition()->getIdentifier();
}
protected function getFormRuntime(): FormRuntime
{
return $this->arguments['object'];
}
}