/**
* Returns boolean value, not null.
*/
public function isValidToken($token)
{
if (empty($token)) {
return False;
}
$sessionId = CoreServices::get('request')->getSessionId();
$timeMiliseconds = CoreUtils::getTimeMiliseconds();
$db = CoreServices::get('db');
$db->change($this->deleteOldTokensSQL($timeMiliseconds));
$db->change($this->insertTokenSQL($token, $sessionId, $timeMiliseconds));
$row = $db->getRow($this->checkTokenSQL($token, $sessionId));
return $row['num'] == '1';
}
