From 51df5547cb9c6cff742bf5bd009565281197f47d Mon Sep 17 00:00:00 2001
From: Stefan Brand <seiichiro@seiichiro0185.org>
Date: Fri, 18 Feb 2022 13:08:16 +0100
Subject: [PATCH] Catch Undefined Variables in Directory Scan

---
 index.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/index.php b/index.php
index fb5073a..4c0a3d1 100644
--- a/index.php
+++ b/index.php
@@ -74,8 +74,8 @@ if (isset($_SESSION[$cdir])
   $files = array_diff(scandir($imagedir.$dir, SCANDIR_SORT_DESCENDING), $rmdirs);
   // Filter Unsupported Files
   $files = array_values(preg_grep('/.*\.(?!(webm|sh)).*/i', $files));
-  $_SESSION[$cdir]['f'] = $files;
-  $_SESSION[$cdir]['d'] = $dirs;
+  $_SESSION[$cdir]['f'] = isset($files) ? $files : null;
+  $_SESSION[$cdir]['d'] = isset($dirs) ? $dirs : null;
   $_SESSION[$cdir]['t'] = time();
 }