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package org.dromara.common.core.utils;
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import cn.hutool.core.lang.PatternPool;
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import cn.hutool.core.net.NetUtil;
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import lombok.AccessLevel;
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import lombok.NoArgsConstructor;
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import lombok.extern.slf4j.Slf4j;
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import org.dromara.common.core.utils.regex.RegexUtils;
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import java.net.Inet6Address;
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import java.net.InetAddress;
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import java.net.UnknownHostException;
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/**
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* 增强网络相关工具类
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*
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* @author 秋辞未寒
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*/
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@Slf4j
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@NoArgsConstructor(access = AccessLevel.PRIVATE)
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public class NetUtils extends NetUtil {
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/**
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* 判断是否为IPv6地址
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*
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* @param ip IP地址
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* @return 是否为IPv6地址
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*/
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public static boolean isIPv6(String ip) {
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try {
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// 判断是否为IPv6地址
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return InetAddress.getByName(ip) instanceof Inet6Address;
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} catch (UnknownHostException e) {
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return false;
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}
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}
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/**
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* 判断IPv6地址是否为内网地址
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* <br><br>
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* 以下地址将归类为本地地址,如有业务场景有需要,请根据需求自行处理:
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* <pre>
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* 通配符地址 0:0:0:0:0:0:0:0
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* 链路本地地址 fe80::/10
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* 唯一本地地址 fec0::/10
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* 环回地址 ::1
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* </pre>
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*
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* @param ip IP地址
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* @return 是否为内网地址
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*/
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public static boolean isInnerIPv6(String ip) {
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try {
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// 判断是否为IPv6地址
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if (InetAddress.getByName(ip) instanceof Inet6Address inet6Address) {
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// isAnyLocalAddress 判断是否为通配符地址,通常不会将其视为内网地址,根据业务场景自行处理判断
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// isLinkLocalAddress 判断是否为链路本地地址,通常不算内网地址,是否划分归属于内网需要根据业务场景自行处理判断
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// isLoopbackAddress 判断是否为环回地址,与IPv4的 127.0.0.1 同理,用于表示本机
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// isSiteLocalAddress 判断是否为本地站点地址,IPv6唯一本地地址(Unique Local Addresses,简称ULA)
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if (inet6Address.isAnyLocalAddress()
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|| inet6Address.isLinkLocalAddress()
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|| inet6Address.isLoopbackAddress()
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|| inet6Address.isSiteLocalAddress()) {
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return true;
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}
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}
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} catch (UnknownHostException e) {
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// 注意,isInnerIPv6方法和isIPv6方法的适用范围不同,所以此处不能忽略其异常信息。
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throw new IllegalArgumentException("Invalid IPv6 address!", e);
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}
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return false;
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}
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/**
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* 判断是否为IPv4地址
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*
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* @param ip IP地址
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* @return 是否为IPv4地址
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*/
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public static boolean isIPv4(String ip) {
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return RegexUtils.isMatch(PatternPool.IPV4, ip);
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}
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}
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