function get_modules($id)
{
    $adb = PearDatabase::getInstance();
    $log = vglobal('log');
    $log->debug("Entering customer portal Function get_modules");
    getServerSessionId($id);
    // Check if information is available in cache?
    $modules = Vtiger_Soap_YetiPortal::lookupAllowedModules();
    if ($modules === false) {
        $modules = array();
        $query = $adb->pquery("SELECT vtiger_customerportal_tabs.* FROM vtiger_customerportal_tabs\n\t\t\tINNER JOIN vtiger_tab ON vtiger_tab.tabid = vtiger_customerportal_tabs.tabid\n\t\t\tWHERE vtiger_tab.presence = 0 AND vtiger_customerportal_tabs.visible = 1", array());
        $norows = $adb->num_rows($query);
        if ($norows) {
            while ($resultrow = $adb->fetch_array($query)) {
                $name = getTabModuleName($resultrow['tabid']);
                $modules[(int) $resultrow['sequence']] = array('name' => $name, 'translated_name' => Vtiger_Language_Handler::getTranslatedString($name, $name, vglobal('default_language')));
            }
            ksort($modules);
            // Order via SQL might cost us, so handling it ourselves in this case
        }
        Vtiger_Soap_YetiPortal::updateAllowedModules($modules);
    }
    $log->debug("Exiting customerportal function get_modules");
    return $modules;
}

function validateSession($username, $sessionid)
{
    global $adb, $current_user;
    $adb->println("Inside function validateSession({$username}, {$sessionid})");
    require_once "modules/Users/Users.php";
    $seed_user = new Users();
    $id = $seed_user->retrieve_user_id($username);
    $server_sessionid = getServerSessionId($id);
    $adb->println("Checking Server session id and customer input session id ==> {$server_sessionid} == {$sessionid}");
    if ($server_sessionid == $sessionid) {
        $adb->println("Session id match. Authenticated to do the current operation.");
        return true;
    } else {
        $adb->println("Session id does not match. Not authenticated to do the current operation.");
        return false;
    }
}

/**	Function used to validate the session
 *	@param int $id - contact id to which we want the session id
 *	@param string $sessionid - session id which will be passed from customerportal
 *	return true/false - return true if valid session otherwise return false
 **/
function validateSession($id, $sessionid)
{
    global $adb;
    $adb->println("Inside function validateSession({$id}, {$sessionid})");
    $server_sessionid = getServerSessionId($id);
    $adb->println("Checking Server session id and customer input session id ==> {$server_sessionid} == {$sessionid}");
    if ($server_sessionid == $sessionid) {
        $adb->println("Session id match. Authenticated to do the current operation.");
        return true;
    } else {
        $adb->println("Session id does not match. Not authenticated to do the current operation.");
        return false;
    }
}