fix filename with just a / HEAD main

1 files changed, 4 insertions, 1 deletions

diff --git a/upload.php b/upload.php
index e82af6d..5f609d4 100644
--- a/upload.php
+++ b/upload.php
@@ -101,13 +101,16 @@ function die_error($s) {
 
 
 function unsafe_get_extension($file) {
-	if ($file === '') {
+	if ($file == '') {
 		return '/file';
 	}
 	$ext = strrchr($file, '/');
 	if (FALSE === $ext) {
 		return '/'.$file;
 	}
+	if ($ext == '/') {
+		return '/file';
+	}
 	return $ext;
 }
 function get_extension($file) {