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编辑当前文件:/home2/sdektunc/ixilyucatan.gob.mx/libraries/src/Form/Filter/UrlFilter.php
* @license GNU General Public License version 2 or later; see LICENSE.txt */ namespace Joomla\CMS\Form\Filter; \defined('JPATH_PLATFORM') or die; use Joomla\CMS\Filter\InputFilter; use Joomla\CMS\Form\Form; use Joomla\CMS\Form\FormFilterInterface; use Joomla\CMS\String\PunycodeHelper; use Joomla\CMS\Uri\Uri; use Joomla\Registry\Registry; /** * Form Filter class for URLs * * @since 4.0.0 */ class UrlFilter implements FormFilterInterface { /** * Method to filter a field value. * * @param \SimpleXMLElement $element The SimpleXMLElement object representing the `
` 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 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 Registry $input An optional Registry object with the entire data set to validate against the entire form. * @param Form $form The form object for which the field is being tested. * * @return mixed The filtered value. * * @since 4.0.0 */ public function filter(\SimpleXMLElement $element, $value, $group = null, Registry $input = null, Form $form = null) { if (empty($value)) { return false; } // This cleans some of the more dangerous characters but leaves special characters that are valid. $value = InputFilter::getInstance()->clean($value, 'html'); $value = trim($value); // <>" are never valid in a uri see https://www.ietf.org/rfc/rfc1738.txt $value = str_replace(array('<', '>', '"'), '', $value); // Check for a protocol $protocol = parse_url($value, PHP_URL_SCHEME); // If there is no protocol and the relative option is not specified, // we assume that it is an external URL and prepend http:// if (((string) $element['type'] === 'url' && !$protocol && !$element['relative']) || (!(string) $element['type'] === 'url' && !$protocol)) { $protocol = 'http'; // If it looks like an internal link, then add the root. if (substr($value, 0, 9) === 'index.php') { $value = Uri::root() . $value; } // Otherwise we treat it as an external link. else { // Put the url back together. $value = $protocol . '://' . $value; } } // If relative URLS are allowed we assume that URLs without protocols are internal. elseif (!$protocol && $element['relative']) { $host = Uri::getInstance('SERVER')->getHost(); // If it starts with the host string, just prepend the protocol. if (substr($value, 0) === $host) { $value = 'http://' . $value; } // Otherwise if it doesn't start with "/" prepend the prefix of the current site. elseif (substr($value, 0, 1) !== '/') { $value = Uri::root(true) . '/' . $value; } } $value = PunycodeHelper::urlToPunycode($value); return $value; } }