Merge branch 'id-charset'

2 files changed, 10 insertions, 2 deletions

diff --git a/php/includes/settings.inc.php b/php/includes/settings.inc.php
index 0695981..19a3987 100644
--- a/php/includes/settings.inc.php
+++ b/php/includes/settings.inc.php
@@ -82,6 +82,14 @@ define('POMF_FILES_LENGTH', 6);
 define('POMF_URL', 'https://i.pantsu.cat/');
 
 /**
+ * URI for filename generation 
+ *
+ * @param string characters to be used in generateName()
+ */
+define('ID_CHARSET', 'abcdefghijklmnopqrstuvwxyz');
+
+
+/**
  * Blocked mime types
  * @param string[] $FILTER_MIME blocked mime types
  */
diff --git a/php/upload.php b/php/upload.php
index 6ee85ad..9b58ba4 100644
--- a/php/upload.php
+++ b/php/upload.php
@@ -42,10 +42,10 @@ function generateName($file)
                 500); // HTTP status code "500 Internal Server Error"
         }
 
-        $chars = range('a', 'z');
+        $chars = ID_CHARSET; 
         $name = '';
         for ($i = 0; $i < $length; ++$i) {
-            $name .= $chars[array_rand($chars)];
+            $name .= $chars[mt_rand(0, strlen($chars))]; 
         }
 
         // Add the extension to the file name