From f5a987b91fe6045ccfcd73154b62f5b5ce1882e2 Mon Sep 17 00:00:00 2001
From: Alexandre Teles <ateles.1@gmail.com>
Date: Wed, 24 Aug 2016 18:15:39 -0300
Subject: [PATCH] Update install.php

Verify if server has SERVER_SOFTWARE defined. If the variable isn't defined it still doesn't make sense to ask for the .htaccess as it definitively isn't Apache or LiteSpeed (or is a very strange self compiled version of those softwares).
---
 install.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/install.php b/install.php
index 6b7be3fe..7e9553bd 100644
--- a/install.php
+++ b/install.php
@@ -190,7 +190,7 @@ function checkSystem()
 		$phpModules = get_loaded_extensions();
 	}
 	
-	if ((stripos($_SERVER['SERVER_SOFTWARE'], 'Apache') !== false || stripos($_SERVER['SERVER_SOFTWARE'], 'LiteSpeed') !== false) && !file_exists(PATH_ROOT.'.htaccess')) {
+	if (array_key_exists('SERVER_SOFTWARE', $_SERVER) && ((stripos($_SERVER['SERVER_SOFTWARE'], 'Apache') !== false || stripos($_SERVER['SERVER_SOFTWARE'], 'LiteSpeed') !== false) && !file_exists(PATH_ROOT.'.htaccess'))) {
 		$errorText = 'Missing file, upload the file .htaccess (ERR_201)';
 		error_log($errorText, 0);