From fa3411ce92ca406fe179a622e567ff96ffc3f502 Mon Sep 17 00:00:00 2001
From: caoyanyi <caoyanyi@easycorp.ltd>
Date: Thu, 21 Apr 2022 01:04:50 +0000
Subject: [PATCH] * Fix bug #15292.

---
 lib/filter/filter.class.php | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/lib/filter/filter.class.php b/lib/filter/filter.class.php
index ebedf6292b..623386462c 100644
--- a/lib/filter/filter.class.php
+++ b/lib/filter/filter.class.php
@@ -20,6 +20,19 @@ helper::import(dirname(dirname(__FILE__)) . '/base/filter/filter.class.php');
  */
 class validater extends baseValidater
 {
+    /**
+     * 检查文件名。
+     * Check file name.
+     *
+     * @param string $var
+     * @static
+     * @access public
+     * @return bool
+     */
+    public static function checkFileName($var)
+    {
+        return !preg_match('/>+|<+/', $var);
+    }
 }
 
 /**