/**
* Clean up old session data etc
* @param int $maxlifetime - maximum old sesion lifetime in seconds
* @return bool - true on success
*/
public function gc($maxlifetime)
{
// destroy any abandoned sessions after $maxlifetime in seconds
// create delete query
$query = "delete from " . $this->cfg->sessionTable . " where " . $this->db->qt("SessionTime") . " < ?";
$values = array(time() - $maxlifetime);
$this->db->query($query, $values, "SSP Session: Clean up old sessions");
// clean up token table
SSP_CleanToken();
SSP_ResponseClean();
return true;
}
/**
* Checks that the token supplied by the form is valid
* @param string $token - token to be checked
* @param string $id - id of form from which the token comes
* @return bool - true on match
*/
function SSP_TokenCheck($token, $id)
{
$SSP_Config = Configuration::getConfiguration();
$SSP_DB = SspDb::getConnection();
$tokenOk = false;
// check is hex token
$check = new \w34u\ssp\CheckData();
if ($check->check('hex', $token) !== 0) {
return false;
}
SSP_CleanToken();
// Form token field exists
$where = array("token" => $token, "id" => $id);
$SSP_DB->delete($SSP_Config->tokenTable, $where, "SSP Functions: Deleting token");
if ($SSP_DB->affectedRows()) {
// token found and deleted
$tokenOk = true;
}
return $tokenOk;
}