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<?php
/**
* @package mod_qlform
* @copyright Copyright (C) 2017 ql.de All rights reserved.
* @author Mareike Riegel mareike.riegel@ql.de
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
defined('_JEXEC') or die;
defined('JPATH_PLATFORM') or die;
/**
* Form Rule class for the Joomla Platform.
*
* @package Joomla.Platform
* @subpackage Form
* @since 11.1
*/
class JFormRuleXml extends JFormRule
{
/**
* The regular expression to use in testing a form field value.
*
* @var string
* @since 11.1
*/
//protected $regex = '^[\w.-]+(\+[\w.-]+)*@\w+[\w.-]*?\.\w{2,4}$';
/**
* Method to test the email address and optionally check for uniqueness.
*
* @param SimpleXMLElement $element The SimpleXMLElement object representing the <field /> tag for the form field object.
* @param mixed $value The form field value to validate.
* @param string $group The field name group control value. This acts as as an array container for the field.
* For example if the field has name="foo" and the group value is set to "bar" then the
* full field name would end up being "bar[foo]".
* @param JRegistry $input An optional JRegistry object with the entire data set to validate against the entire form.
* @param JForm $form The form object for which the field is being tested.
*
* @return boolean True if the value is valid, false otherwise.
*
* @since 11.1
*/
public function test(SimpleXMLElement $element, $value, $group = null, JRegistry $input = null, JForm $form = null)
{
try
{
$strXml=$this->strToXml($value);
libxml_use_internal_errors(TRUE);
$valid=simplexml_load_string($strXml);
if (is_object($valid)) return true;
/*get errors in case of failed test*/
$arrErrors = libxml_get_errors();
$xmlErrors='<ul>';
foreach ($arrErrors as $v) $xmlErrors.='<li>'.htmlentities($this->xmlToStr($v->message)).'</li>';
$xmlErrors.='</ul>';
$msgError=sprintf(JText::_('MOD_QLFORM_MSG_XMLINVALID'),$xmlErrors);
throw new Exception($msgError);
}
catch (Exception $e)
{
JFactory::getApplication()->enqueueMessage($e->getMessage());
return false;
}
}
function strToXml($str)
{
$str=preg_replace("/\[/",'<',$str);
$str=preg_replace("/\]/",'>',$str);
return $str;
}
function xmlToStr($str)
{
$str=preg_replace("/\</",'[',$str);
$str=preg_replace("/\>/",']',$str);
return $str;
}
}