Non-database handler + Ajax component integration

libraries/cms/html/behavior.php

@@ -634,16 +634,32 @@ public static function keepalive()
 			return;
 		}
 
-		$life_time    = JFactory::getConfig()->get('lifetime') * 60000;
-		$refresh_time = ($life_time <= 60000) ? 45000 : $life_time - 60000;
-
-		// The longest refresh period is one hour to prevent integer overflow.
-		if ($refresh_time > 3600000 || $refresh_time <= 0)
+		// If the handler is not 'Database', we set a fixed, small refresh value (here: 5 min)
+		if (JFactory::getConfig()->get('session_handler') != 'database')
+		{
+			$refresh_time = 300000;
+		}
+		else
 		{
-			$refresh_time = 3600000;
+			$life_time    = JFactory::getConfig()->get('lifetime') * 60000;
+			$refresh_time = ($life_time <= 60000) ? 45000 : $life_time - 60000;
+
+			// The longest refresh period is one hour to prevent integer overflow.
+			if ($refresh_time > 3600000 || $refresh_time <= 0)
+			{
+				$refresh_time = 3600000;
+			}
 		}
 
-		$url = JUri::root(true) . '/index.php?option=com_ajax&format=json';
+		// If we are in the frontend or logged in as a user, we can use the ajax component to reduce the load
+		if (JFactory::getApplication()->isSite() || !JFactory::getUser()->guest)
+		{
+			$url = JUri::base(true) . '/index.php?option=com_ajax&format=json';
+		}
+		else
+		{
+			$url = JUri::base(true) . '/index.php';
+		}
 
 		$script = 'window.setInterval(function(){';
 		$script .= 'var r;';