/**
* @return void
*/
protected function renderHoneypot()
{
$renderingOptions = $this->formDefinition->getRenderingOptions();
if (!isset($renderingOptions['honeypot']['enable']) || $renderingOptions['honeypot']['enable'] === false || TYPO3_MODE === 'BE') {
return;
}
FormArrayUtility::assertAllArrayKeysAreValid($renderingOptions['honeypot'], ['enable', 'formElementToUse']);
if (!$this->isAfterLastPage()) {
$elementsCount = count($this->currentPage->getElements());
if ($elementsCount === 0) {
return;
}
if (!$this->isFirstRequest()) {
$honeypotNameFromSession = $this->getHoneypotNameFromSession($this->lastDisplayedPage);
if ($honeypotNameFromSession) {
$honeypotElement = $this->formDefinition->getElementByIdentifier($honeypotNameFromSession);
if ($honeypotElement instanceof FormElementInterface) {
$this->lastDisplayedPage->removeElement($honeypotElement);
}
}
}
$elementsCount = count($this->currentPage->getElements());
$randomElementNumber = mt_rand(0, $elementsCount - 1);
$honeypotName = substr(str_shuffle('abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'), 0, mt_rand(5, 26));
$referenceElement = $this->currentPage->getElements()[$randomElementNumber];
$honeypotElement = $this->currentPage->createElement($honeypotName, $renderingOptions['honeypot']['formElementToUse']);
$validator = $this->objectManager->get(EmptyValidator::class);
$honeypotElement->addValidator($validator);
if (mt_rand(0, 1) === 1) {
$this->currentPage->moveElementAfter($honeypotElement, $referenceElement);
} else {
$this->currentPage->moveElementBefore($honeypotElement, $referenceElement);
}
$this->setHoneypotNameInSession($this->currentPage, $honeypotName);
}
}
