function isValid()
{
$valid = true;
// expired
if (HTTP_Session::isExpired()) {
$valid = false;
HTTP_Session::destroy();
throw new WebServiceException(WebServiceErrorCode::$SESSLIFEOVER, "Session has life span over please login again");
}
// idled
if (HTTP_Session::isIdle()) {
$valid = false;
HTTP_Session::destroy();
throw new WebServiceException(WebServiceErrorCode::$SESSIONIDLE, "Session has been invalidated to due lack activity");
}
//echo "<br>is new: ", HTTP_Session::isNew();
//invalid sessionId provided.
//echo "<br>get: ",$this->get($this->sessionVar);
if (!$this->get($this->sessionVar) && !HTTP_Session::isNew()) {
$valid = false;
HTTP_Session::destroy();
throw new WebServiceException(WebServiceErrorCode::$SESSIONIDINVALID, "Session Identifier provided is Invalid");
}
return $valid;
}
/**
* Initialize session
*/
static function init($sessionid = false)
{
if (empty($sessionid)) {
HTTP_Session::start(null, null);
$sessionid = HTTP_Session::id();
} else {
HTTP_Session::start(null, $sessionid);
}
if (HTTP_Session::isIdle() || HTTP_Session::isExpired()) {
return false;
}
return $sessionid;
}