From ad86486285cb865f124e5c83cdaf8fa8edc65408 Mon Sep 17 00:00:00 2001
From: RuoYi <yzz_ivy@163.com>
Date: 星期五, 30 八月 2024 21:45:16 +0800
Subject: [PATCH] update sqlkeyword

---
 ruoyi-common/src/main/java/com/ruoyi/common/utils/sql/SqlUtil.java |   11 ++++++++++-
 1 files changed, 10 insertions(+), 1 deletions(-)

diff --git a/ruoyi-common/src/main/java/com/ruoyi/common/utils/sql/SqlUtil.java b/ruoyi-common/src/main/java/com/ruoyi/common/utils/sql/SqlUtil.java
index 40a800d..e345cb4 100644
--- a/ruoyi-common/src/main/java/com/ruoyi/common/utils/sql/SqlUtil.java
+++ b/ruoyi-common/src/main/java/com/ruoyi/common/utils/sql/SqlUtil.java
@@ -13,12 +13,17 @@
     /**
      * 定义常用的 sql关键字
      */
-    public static String SQL_REGEX = "and |extractvalue|updatexml|exec |insert |select |delete |update |drop |count |chr |mid |master |truncate |char |declare |or |+|user()";
+    public static String SQL_REGEX = "and |extractvalue|updatexml|sleep|exec |insert |select |delete |update |drop |count |chr |mid |master |truncate |char |declare |or |union |like |+|/*|user()";
 
     /**
      * 仅支持字母、数字、下划线、空格、逗号、小数点(支持多个字段排序)
      */
     public static String SQL_PATTERN = "[a-zA-Z0-9_\\ \\,\\.]+";
+
+    /**
+     * 限制orderBy最大长度
+     */
+    private static final int ORDER_BY_MAX_LENGTH = 500;
 
     /**
      * 检查字符,防止注入绕过
@@ -29,6 +34,10 @@
         {
             throw new UtilException("参数不符合规范,不能进行查询");
         }
+        if (StringUtils.length(value) > ORDER_BY_MAX_LENGTH)
+        {
+            throw new UtilException("参数已超过最大限制,不能进行查询");
+        }
         return value;
     }
 

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