/**
* Extracts just the domain part that determines a cookie's host validity.
*
* @param string $host Host name to truncate.
*
* @return string Domain or false on a bad host.
*/
protected function truncateHost($host)
{
$tlds = SimpleUrl::getAllTopLevelDomains();
if (preg_match('/[a-z\\-]+\\.(' . $tlds . ')$/i', $host, $matches)) {
return $matches[0];
} elseif (preg_match('/[a-z\\-]+\\.[a-z\\-]+\\.[a-z\\-]+$/i', $host, $matches)) {
return $matches[0];
}
return false;
}
function _chompHost(&$url)
{
if (preg_match('/^(\\/\\/)(.*?)(\\/.*|\\?.*|#.*|$)/', $url, $matches)) {
$url = $matches[3];
return $matches[2];
}
if (preg_match('/(.*?)(\\.\\.\\/|\\.\\/|\\/|\\?|#|$)(.*)/', $url, $matches)) {
$tlds = SimpleUrl::getAllTopLevelDomains();
if (preg_match('/[a-z0-9\\-]+\\.(' . $tlds . ')/i', $matches[1])) {
$url = $matches[2] . $matches[3];
return $matches[1];
} elseif (preg_match('/[a-z0-9\\-]+\\.[a-z0-9\\-]+\\.[a-z0-9\\-]+/i', $matches[1])) {
$url = $matches[2] . $matches[3];
return $matches[1];
}
}
return false;
}