matrix-documentation/pre__session_8php_source.html

<?php

// Suppress frontend errors

$current_val = ini_get('display_errors');

ini_set('display_errors', 0);


if (!isset($_SESSION['PRIMARY_SESSIONID'])) {

    error_log('No primary session');

    reload_browser(TRUE, $SQ_SITE_NETWORK);

} else {


    // Set up the session handler

    $session_handler = $GLOBALS['SQ_SYSTEM']->getSessionHandlerClassName();

    $session_handler_instance = new $session_handler();

    $session_exists = $session_handler_instance->sessionExists($_SESSION['PRIMARY_SESSIONID']);


    if (!$session_exists) {

        unset($_SESSION['PRIMARY_SESSIONID']);

        reload_browser(FALSE, $SQ_SITE_NETWORK);

    }


    $pri_session = $session_handler_instance->unserialiseSession($_SESSION['PRIMARY_SESSIONID']);

    $pri_timestamp = (isset($pri_session['SQ_SESSION_TIMESTAMP'])) ? $pri_session['SQ_SESSION_TIMESTAMP'] : -1;

    $sec_timestamp = (isset($_SESSION['SQ_SESSION_TIMESTAMP'])) ? $_SESSION['SQ_SESSION_TIMESTAMP'] : -1;


    if ($pri_timestamp > $sec_timestamp) {

        $session_handler_instance->syncSession($_SESSION['PRIMARY_SESSIONID']);

        reload_browser(FALSE, $SQ_SITE_NETWORK);

    }

}


// Restore the current setting

ini_set('display_errors', $current_val);


function reload_browser($do_js_request=FALSE, $site_network)

{

    $primary_url = $site_network->getPrimaryURL();

    ?>

        <html>

            <head>

                <script type="text/javascript" src="<?php echo sq_web_path('lib'); ?>/js/JsHttpConnector.js"></script>

                <script type="text/javascript" src="<?php echo $primary_url; ?>/__lib/session/session.php?in_primary=<?php echo (sq_web_path('root_url') == $primary_url) ? 1 : 0; ?>&site_network=<?php echo $site_network->id; ?>"></script>

                <script type="text/javascript">

                    <?php

                        if ($do_js_request) {

                            echo 'start_session_handler("'.sq_web_path('lib').'/session/session.php?site_network='.$site_network->id.'");'."\n";

                        }

                    ?>

                    setTimeout("document.location.href = document.location.href.replace('SQ_ACTION=logout','')", 100);

                </script>

            </head>

            <body>

            </body>

        </html>

    <?php

    exit();


}//end reload_browser()


?>