From 2ee51222443695f8a90e51d91fa0bbe358c7fe88 Mon Sep 17 00:00:00 2001
From: onewe <admin@onew.me>
Date: Fri, 22 Apr 2022 15:51:40 +0800
Subject: [PATCH] [ISSUE #8208] fix ip validate (#8210)

Close #8208
---
 .../com/alibaba/nacos/naming/core/Instance.java | 17 +++--------------
 .../alibaba/nacos/naming/core/InstanceTest.java |  7 +++++++
 2 files changed, 10 insertions(+), 14 deletions(-)

diff --git a/naming/src/main/java/com/alibaba/nacos/naming/core/Instance.java b/naming/src/main/java/com/alibaba/nacos/naming/core/Instance.java
index b047b5f1790..3ac317af747 100644
--- a/naming/src/main/java/com/alibaba/nacos/naming/core/Instance.java
+++ b/naming/src/main/java/com/alibaba/nacos/naming/core/Instance.java
@@ -30,8 +30,6 @@
 
 import java.util.Set;
 import java.util.concurrent.atomic.AtomicInteger;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
 
 /**
  * IP under service.
@@ -54,8 +52,6 @@ public class Instance extends com.alibaba.nacos.api.naming.pojo.Instance impleme
     
     private String app;
     
-    private static final Pattern ONLY_DIGIT_AND_DOT = Pattern.compile("(\\d|\\.)+");
-    
     private static final String SPLITER = "_";
     
     public Instance() {
@@ -352,11 +348,9 @@ private String generateSnowflakeInstanceId(Set<String> currentInstanceIds) {
      * @throws NacosException if instance is not validate
      */
     public void validate() throws NacosException {
-        if (onlyContainsDigitAndDot()) {
-            if (!InternetAddressUtil.containsPort(getIp() + InternetAddressUtil.IP_PORT_SPLITER + getPort())) {
-                throw new NacosException(NacosException.INVALID_PARAM,
-                        "instance format invalid: Your IP address is spelled incorrectly");
-            }
+        if (!InternetAddressUtil.isIP(getIp())) {
+            throw new NacosException(NacosException.INVALID_PARAM,
+                    "instance format invalid: Your IP address is spelled incorrectly");
         }
         
         if (getWeight() > com.alibaba.nacos.naming.constants.Constants.MAX_WEIGHT_VALUE
@@ -368,11 +362,6 @@ public void validate() throws NacosException {
         
     }
     
-    private boolean onlyContainsDigitAndDot() {
-        Matcher matcher = ONLY_DIGIT_AND_DOT.matcher(getIp());
-        return matcher.matches();
-    }
-    
     @Override
     public int compareTo(Object o) {
         if (!(o instanceof Instance)) {
diff --git a/naming/src/test/java/com/alibaba/nacos/naming/core/InstanceTest.java b/naming/src/test/java/com/alibaba/nacos/naming/core/InstanceTest.java
index 31cdad75069..a2e04d67d2c 100644
--- a/naming/src/test/java/com/alibaba/nacos/naming/core/InstanceTest.java
+++ b/naming/src/test/java/com/alibaba/nacos/naming/core/InstanceTest.java
@@ -16,6 +16,7 @@
 
 package com.alibaba.nacos.naming.core;
 
+import com.alibaba.nacos.api.exception.NacosException;
 import com.alibaba.nacos.common.utils.JacksonUtils;
 import com.alibaba.nacos.naming.healthcheck.RsInfo;
 import org.junit.Before;
@@ -131,4 +132,10 @@ public void rsInfo() throws Exception {
         RsInfo info1 = JacksonUtils.toObj(json, RsInfo.class);
         System.out.println(info1);
     }
+    
+    @Test(expected = NacosException.class)
+    public void testIpValidate() throws NacosException {
+        Instance instance1 = new Instance("192.168.1.3d", 8080);
+        instance1.validate();
+    }
 }