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<?php
/**
* Matomo - free/libre analytics platform
*
* @link https://matomo.org
* @license https://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*/
namespace Piwik\Plugins\CustomDimensions\Dimension;
use Exception;
use Piwik\Piwik;
class Name
{
protected $name;
public function __construct($name)
{
$this->name = $name;
}
public function check()
{
$maxLen = 255;
if (empty($this->name)) {
throw new Exception(Piwik::translate('CustomDimensions_NameIsRequired'));
}
if (strlen($this->name) > $maxLen) {
throw new Exception(Piwik::translate('CustomDimensions_NameIsTooLong', $maxLen));
}
$blockedCharacters = self::getBlockedCharacters();
// we do not really have to do this and it is not very effective for preventing XSS but doesn't hurt to have
if (strip_tags($this->name) !== $this->name || str_replace($blockedCharacters, '', $this->name) !== $this->name) {
throw new Exception(Piwik::translate('CustomDimensions_NameAllowedCharacters'));
}
}
/**
* @api
*/
public static function getBlockedCharacters()
{
return [
'/', '\\', '&', '.', '<', '>',
];
}
}
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