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@ -3,19 +3,20 @@ package com.ruoyi.common.core.utils.ip;
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import java.net.InetAddress;
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import java.net.UnknownHostException;
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import javax.servlet.http.HttpServletRequest;
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import com.ruoyi.common.core.utils.StringUtils;
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/**
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* 获取IP方法
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*
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*
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* @author ruoyi
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*/
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public class IpUtils
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{
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public static String getIpAddr(HttpServletRequest request)
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{
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if (request == null)
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{
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public class IpUtils {
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public static String UNKNOWN = "unknown";
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public static String getIpAddr(HttpServletRequest request) {
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if (request == null) {
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return null;
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}
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@ -23,51 +24,42 @@ public class IpUtils
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// X-Forwarded-For:Squid 服务代理
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String ipAddresses = request.getHeader("X-Forwarded-For");
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if (ipAddresses == null || ipAddresses.length() == 0 || "unknown".equalsIgnoreCase(ipAddresses))
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{
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if (ipAddresses == null || ipAddresses.length() == 0 || UNKNOWN.equalsIgnoreCase(ipAddresses)) {
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// Proxy-Client-IP:apache 服务代理
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ipAddresses = request.getHeader("Proxy-Client-IP");
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}
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if (ipAddresses == null || ipAddresses.length() == 0 || "unknown".equalsIgnoreCase(ipAddresses))
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{
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if (ipAddresses == null || ipAddresses.length() == 0 || UNKNOWN.equalsIgnoreCase(ipAddresses)) {
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// WL-Proxy-Client-IP:weblogic 服务代理
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ipAddresses = request.getHeader("WL-Proxy-Client-IP");
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}
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if (ipAddresses == null || ipAddresses.length() == 0 || "unknown".equalsIgnoreCase(ipAddresses))
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{
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if (ipAddresses == null || ipAddresses.length() == 0 || UNKNOWN.equalsIgnoreCase(ipAddresses)) {
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// HTTP_CLIENT_IP:有些代理服务器
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ipAddresses = request.getHeader("HTTP_CLIENT_IP");
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}
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if (ipAddresses == null || ipAddresses.length() == 0 || "unknown".equalsIgnoreCase(ipAddresses))
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{
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if (ipAddresses == null || ipAddresses.length() == 0 || UNKNOWN.equalsIgnoreCase(ipAddresses)) {
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// X-Real-IP:nginx服务代理
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ipAddresses = request.getHeader("X-Real-IP");
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}
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// 有些网络通过多层代理,那么获取到的ip就会有多个,一般都是通过逗号(,)分割开来,并且第一个ip为客户端的真实IP
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if (ipAddresses != null && ipAddresses.length() != 0)
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{
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if (ipAddresses != null && ipAddresses.length() != 0) {
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ip = ipAddresses.split(",")[0];
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}
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// 还是不能获取到,最后再通过request.getRemoteAddr();获取
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if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ipAddresses))
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{
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if (ip == null || ip.length() == 0 || UNKNOWN.equalsIgnoreCase(ipAddresses)) {
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ip = request.getRemoteAddr();
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}
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return ip.equals("0:0:0:0:0:0:0:1") ? "127.0.0.1" : ip;
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}
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public static boolean internalIp(String ip)
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{
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public static boolean internalIp(String ip) {
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byte[] addr = textToNumericFormatV4(ip);
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return internalIp(addr) || "127.0.0.1".equals(ip);
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}
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private static boolean internalIp(byte[] addr)
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{
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if (StringUtils.isNull(addr) || addr.length < 2)
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{
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private static boolean internalIp(byte[] addr) {
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if (StringUtils.isNull(addr) || addr.length < 2) {
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return true;
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}
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final byte b0 = addr[0];
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@ -81,18 +73,15 @@ public class IpUtils
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// 192.168.x.x/16
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final byte SECTION_5 = (byte) 0xC0;
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final byte SECTION_6 = (byte) 0xA8;
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switch (b0)
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{
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switch (b0) {
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case SECTION_1:
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return true;
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case SECTION_2:
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if (b1 >= SECTION_3 && b1 <= SECTION_4)
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{
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if (b1 >= SECTION_3 && b1 <= SECTION_4) {
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return true;
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}
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case SECTION_5:
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switch (b1)
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{
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switch (b1) {
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case SECTION_6:
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return true;
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}
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@ -103,28 +92,24 @@ public class IpUtils
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/**
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* 将IPv4地址转换成字节
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*
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*
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* @param text IPv4地址
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* @return byte 字节
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*/
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public static byte[] textToNumericFormatV4(String text)
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{
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if (text.length() == 0)
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{
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public static byte[] textToNumericFormatV4(String text) {
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if (text.length() == 0) {
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return null;
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}
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byte[] bytes = new byte[4];
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String[] elements = text.split("\\.", -1);
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try
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{
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try {
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long l;
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int i;
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switch (elements.length)
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{
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switch (elements.length) {
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case 1:
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l = Long.parseLong(elements[0]);
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if ((l < 0L) || (l > 4294967295L)){
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if ((l < 0L) || (l > 4294967295L)) {
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return null;
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}
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bytes[0] = (byte) (int) (l >> 24 & 0xFF);
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@ -147,8 +132,7 @@ public class IpUtils
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bytes[3] = (byte) (int) (l & 0xFF);
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break;
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case 3:
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for (i = 0; i < 2; ++i)
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{
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for (i = 0; i < 2; ++i) {
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l = Integer.parseInt(elements[i]);
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if ((l < 0L) || (l > 255L)) {
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return null;
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@ -163,8 +147,7 @@ public class IpUtils
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bytes[3] = (byte) (int) (l & 0xFF);
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break;
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case 4:
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for (i = 0; i < 4; ++i)
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{
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for (i = 0; i < 4; ++i) {
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l = Integer.parseInt(elements[i]);
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if ((l < 0L) || (l > 255L)) {
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return null;
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@ -175,34 +158,24 @@ public class IpUtils
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default:
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return null;
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}
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}
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catch (NumberFormatException e)
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{
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} catch (NumberFormatException e) {
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return null;
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}
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return bytes;
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}
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public static String getHostIp()
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{
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try
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{
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public static String getHostIp() {
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try {
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return InetAddress.getLocalHost().getHostAddress();
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}
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catch (UnknownHostException e)
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{
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} catch (UnknownHostException e) {
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}
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return "127.0.0.1";
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}
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public static String getHostName()
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{
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try
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{
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public static String getHostName() {
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try {
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return InetAddress.getLocalHost().getHostName();
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}
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catch (UnknownHostException e)
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{
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} catch (UnknownHostException e) {
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}
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return "未知";
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}
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