From 2c5bc1422b330e46b4fc8d9da4a4eb03a3102875 Mon Sep 17 00:00:00 2001
From: dingshuangxi888 <dingshuangxi888@gmail.com>
Date: Wed, 27 Dec 2023 19:09:52 +0800
Subject: [PATCH] Fix ascii validate for ppv2 tls. (#7703)

Co-authored-by: ShuangxiDing <shuangxi.dsx@alibaba-inc.com>
---
 .../main/java/org/apache/rocketmq/common/utils/BinaryUtil.java  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common/src/main/java/org/apache/rocketmq/common/utils/BinaryUtil.java b/common/src/main/java/org/apache/rocketmq/common/utils/BinaryUtil.java
index 7b4b24819c6..68d15e0708a 100644
--- a/common/src/main/java/org/apache/rocketmq/common/utils/BinaryUtil.java
+++ b/common/src/main/java/org/apache/rocketmq/common/utils/BinaryUtil.java
@@ -54,7 +54,7 @@ public static boolean isAscii(byte[] subject) {
             return false;
         }
         for (byte b : subject) {
-            if ((b & 0x80) != 0) {
+            if (b < 32 || b > 126) {
                 return false;
             }
         }