/**
* Factory method to create an appropriate type
*
* @param FormField $field
* @param $submittedData
* @return SpecialEmailValidator
* @throws FormFieldException
*/
public static function create(FormField $field, $submittedData)
{
switch ($field->getType()) {
case 'email':
$object = new SpecialEmailValidator($field, $submittedData);
break;
default:
throw FormFieldException::noSuchType($field->getType());
break;
}
return $object;
}
/**
* @param string type
* @param $node
* @return FormField
*/
public function fieldFactory($type, $node)
{
// Instantiate a field object
$field = new FormField(strtolower($type));
// Get predifined attributes like id
$attributes = $this->transpileAttributes($node->getNode(0), ['type', 'name', 'value']);
$field->setAttributes($attributes);
// Pattern validation callback
if (array_key_exists('pattern', $attributes)) {
$pattern = $attributes['pattern'];
$field->setValidationCallback(function ($value) use($pattern, $field) {
$validationResult = preg_match('/' . $pattern . '/', $value);
if ($validationResult) {
return false;
// it's valid!
}
return true;
});
}
// Add value
$field->setDefault($node->attr('value'))->setName(str_replace('\\"', '', $node->attr('name')));
// Set madatory if required
if (array_key_exists('required', $attributes)) {
$field->setMandatory(true);
}
return $field;
}
/**
* Add CSRF token hidden input field
*/
private function addCSRFTokenField()
{
$this->nonceValue = $this->createNonce();
$nonce = new FormField(FormField::TYPE_HIDDEN);
$nonce->setName('nonce')->setValue($this->createNonce())->setValidationCallback(function ($value) {
if (function_exists('wp_verify_nonce')) {
if (!wp_verify_nonce($value, $this->nonceKey)) {
throw new \Exception('Unauthorized request');
}
} else {
if (!isset($_SESSION['csrf_tokens'][$value])) {
throw new \Exception('Unauthorized request');
} else {
unset($_SESSION['csrf_tokens'][$value]);
}
}
return false;
})->setMandatory(true);
$key = 'nonce';
$this->addField($key, $nonce);
}
