Version 4.1.19

applications/core/modules/setup/install/systemcheck.php

@@ -2,9 +2,9 @@
 /**
  * @brief		Installer: System Check
  * @author		<a href='http://www.invisionpower.com'>Invision Power Services, Inc.</a>
- * @copyright	(c) 2001 - SVN_YYYY Invision Power Services, Inc.
+ * @copyright	(c) 2001 - 2016 Invision Power Services, Inc.
  * @license		http://www.invisionpower.com/legal/standards/
- * @package		IPS Social Suite
+ * @package		IPS Community Suite
  * @since		10 Dec 2014
  * @version		SVN_VERSION_NUMBER
  */
@@ -30,6 +30,29 @@ class _systemcheck extends \IPS\Dispatcher\Controller
 	 */
 	public function manage()
 	{
+		/* Clear previous session data */
+		if( !isset( \IPS\Request::i()->sessionCheck ) AND count( $_SESSION ) )
+		{
+			foreach( $_SESSION as $k => $v )
+			{
+				unset( $_SESSION[ $k ] );
+			}
+		}
+
+		/* Store a session variable and then check it on the next page load to make sure PHP sessions are working */
+		if( !isset( \IPS\Request::i()->sessionCheck ) )
+		{
+			$_SESSION['sessionCheck'] = TRUE;
+			\IPS\Output::i()->redirect( \IPS\Request::i()->url()->setQueryString( 'sessionCheck', 1 ) );
+		}
+		else
+		{
+			if( !isset( $_SESSION['sessionCheck'] ) OR !$_SESSION['sessionCheck'] )
+			{
+				\IPS\Output::i()->error( 'session_check_fail', '5C348/1', 500, '' );
+			}
+		}
+
 		\IPS\Output::i()->title		= \IPS\Member::loggedIn()->language()->addToStack('healthcheck');
 		\IPS\Output::i()->output	= \IPS\Theme::i()->getTemplate( 'global' )->healthcheck( \IPS\core\Setup\Install::systemRequirements() );
 	}