upload.php cleanup: really don't make dot files

diff --git a/upload.php b/upload.php
index 4d81804..2509a6b 100644 (file)
--- a/upload.php
+++ b/upload.php
@@ -103,11 +103,17 @@ function generate_filename($path, $mime = 'text/plain') {
        # replace symbols with underscores
        $filename = preg_replace('|[^a-z0-9_.]|', '_', $filename);
 
+       # limit length
+       if(strlen($filename > 80)) {
+               $filename = substr($filename, -80);
+       }
+
        # remove dots from the beginning (no invisible files)
        $filename = preg_replace('|^\.*|', '', $filename);
 
-       if(strlen($filename > 80)) {
-               $filename = substr($filename, -80);
+       # make sure there's something before the extension
+       if ($filename == '') {
+               return '_';
        }
 
        # fix extension
@@ -127,6 +133,7 @@ function generate_filename($path, $mime = 'text/plain') {
                }
                $filename = $basename . '.' . $ext;
        }
+
        return $filename;
 }