From d21f54662c774ac89800e30dcb5a5fcd33e6f8f0 Mon Sep 17 00:00:00 2001
From: argiepiano <argiepiano@yahoo.com>
Date: Sun, 10 Dec 2023 14:44:30 -0700
Subject: [PATCH] Issue #131. Avoid using an empty string in explode.

Fixes #13.
---
 includes/files.inc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/includes/files.inc b/includes/files.inc
index d20d9fa..e7b31ef 100644
--- a/includes/files.inc
+++ b/includes/files.inc
@@ -518,7 +518,9 @@ class backup_file {
   function set_file_info($file_info) {
     $this->file_info = $file_info;
 
-    $this->ext = explode('.', @$this->file_info['filename']);
+    if (!empty($this->file_info['filename'])) {
+      $this->ext = explode('.', $this->file_info['filename']);
+    }
     // Remove the underscores added to file extensions by Drupal's upload security.
     foreach ($this->ext as $key => $val) {
       $this->ext[$key] = trim($val, '_');