package com.walker.web.util;
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import com.fasterxml.jackson.databind.node.ObjectNode;
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import com.walker.infrastructure.utils.JsonUtils;
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import com.walker.infrastructure.utils.StringUtils;
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import com.walker.web.Constants;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.http.ResponseEntity;
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import org.springframework.web.client.RestTemplate;
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import javax.servlet.http.HttpServletRequest;
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import java.net.InetAddress;
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import java.net.UnknownHostException;
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import java.util.HashMap;
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import java.util.Map;
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/**
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* 获取IP方法
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*
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* @author Mike
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*/
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public class IpUtils {
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protected static final transient Logger logger = LoggerFactory.getLogger(IpUtils.class);
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public static final String UNKNOWN_TEXT = "unknown";
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public static final String LOCALHOST = "127.0.0.1";
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/**
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* 获取客户端IP
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*
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* @param request 请求对象
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* @return IP地址
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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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return "unknown";
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}
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String ip = request.getHeader("x-forwarded-for");
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if (ip == null || ip.length() == 0 || UNKNOWN_TEXT.equalsIgnoreCase(ip))
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{
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ip = request.getHeader("Proxy-Client-IP");
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}
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if (ip == null || ip.length() == 0 || UNKNOWN_TEXT.equalsIgnoreCase(ip))
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{
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ip = request.getHeader("X-Forwarded-For");
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}
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if (ip == null || ip.length() == 0 || UNKNOWN_TEXT.equalsIgnoreCase(ip))
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{
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ip = request.getHeader("WL-Proxy-Client-IP");
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}
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if (ip == null || ip.length() == 0 || UNKNOWN_TEXT.equalsIgnoreCase(ip))
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{
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ip = request.getHeader("X-Real-IP");
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}
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if (ip == null || ip.length() == 0 || UNKNOWN_TEXT.equalsIgnoreCase(ip))
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{
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ip = request.getRemoteAddr();
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}
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return "0:0:0:0:0:0:0:1".equals(ip) ? LOCALHOST : getMultistageReverseProxyIp(ip);
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}
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/**
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* 检查是否为内部IP地址
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*
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* @param ip IP地址
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* @return 结果
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*/
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public static boolean internalIp(String ip)
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{
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byte[] addr = textToNumericFormatV4(ip);
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return internalIp(addr) || LOCALHOST.equals(ip);
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}
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/**
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* 检查是否为内部IP地址
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*
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* @param addr byte地址
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* @return 结果
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*/
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private static boolean internalIp(byte[] addr)
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{
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if (addr == null || addr.length < 2)
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{
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return true;
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}
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final byte b0 = addr[0];
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final byte b1 = addr[1];
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// 10.x.x.x/8
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final byte SECTION_1 = 0x0A;
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// 172.16.x.x/12
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final byte SECTION_2 = (byte) 0xAC;
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final byte SECTION_3 = (byte) 0x10;
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final byte SECTION_4 = (byte) 0x1F;
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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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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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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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case SECTION_6:
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return true;
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}
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default:
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return false;
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}
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}
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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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* @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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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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long l;
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int i;
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switch (elements.length)
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{
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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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{
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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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bytes[1] = (byte) (int) ((l & 0xFFFFFF) >> 16 & 0xFF);
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bytes[2] = (byte) (int) ((l & 0xFFFF) >> 8 & 0xFF);
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bytes[3] = (byte) (int) (l & 0xFF);
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break;
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case 2:
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l = Integer.parseInt(elements[0]);
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if ((l < 0L) || (l > 255L))
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{
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return null;
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}
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bytes[0] = (byte) (int) (l & 0xFF);
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l = Integer.parseInt(elements[1]);
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if ((l < 0L) || (l > 16777215L))
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{
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return null;
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}
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bytes[1] = (byte) (int) (l >> 16 & 0xFF);
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bytes[2] = (byte) (int) ((l & 0xFFFF) >> 8 & 0xFF);
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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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l = Integer.parseInt(elements[i]);
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if ((l < 0L) || (l > 255L))
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{
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return null;
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}
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bytes[i] = (byte) (int) (l & 0xFF);
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}
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l = Integer.parseInt(elements[2]);
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if ((l < 0L) || (l > 65535L))
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{
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return null;
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}
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bytes[2] = (byte) (int) (l >> 8 & 0xFF);
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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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l = Integer.parseInt(elements[i]);
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if ((l < 0L) || (l > 255L))
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{
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return null;
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}
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bytes[i] = (byte) (int) (l & 0xFF);
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}
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break;
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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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return null;
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}
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return bytes;
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}
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/**
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* 获取IP地址
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*
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* @return 本地IP地址
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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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return InetAddress.getLocalHost().getHostAddress();
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}
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catch (UnknownHostException e)
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{
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}
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return LOCALHOST;
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}
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/**
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* 获取主机名
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*
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* @return 本地主机名
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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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return InetAddress.getLocalHost().getHostName();
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}
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catch (UnknownHostException e)
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{
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}
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return "未知";
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}
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/**
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* 从多级反向代理中获得第一个非unknown IP地址
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*
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* @param ip 获得的IP地址
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* @return 第一个非unknown IP地址
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*/
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public static String getMultistageReverseProxyIp(String ip)
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{
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// 多级反向代理检测
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if (ip != null && ip.indexOf(StringUtils.DEFAULT_SPLIT_SEPARATOR) > 0)
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{
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final String[] ips = ip.trim().split(StringUtils.DEFAULT_SPLIT_SEPARATOR);
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for (String subIp : ips)
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{
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if (false == isUnknown(subIp))
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{
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ip = subIp;
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break;
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}
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}
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}
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return ip;
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}
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/**
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* 检测给定字符串是否为未知，多用于检测HTTP请求相关
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*
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* @param checkString 被检测的字符串
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* @return 是否未知
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*/
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public static boolean isUnknown(String checkString) {
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return StringUtils.isEmpty(checkString) || UNKNOWN_TEXT.equalsIgnoreCase(checkString);
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}
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//~ 根据IP调用第三方服务查询地理位置名称，2023-01-05
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// IP地址查询
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public static final String IP_URL = "http://whois.pconline.com.cn/ipJson.jsp";
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/**
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* 根据IP地址调用三方服务，查询位置信息: 省 市
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* @param ip
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* @return
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*/
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public static String getLocationByIP(String ip){
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// 内网不查询
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if (IpUtils.internalIp(ip)) {
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return "内网IP";
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}
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try {
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String rspStr = HttpUtils.sendGet(IP_URL, "ip=" + ip + "&json=true", Constants.CHARSET_GBK);
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if (StringUtils.isEmpty(rspStr))
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{
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logger.error("获取地理位置异常 {}", ip);
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return UNKNOWN_TEXT;
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}
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ObjectNode objectNode = JsonUtils.jsonStringToObjectNode(rspStr);
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if(objectNode == null){
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return StringUtils.EMPTY_STRING;
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}
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String region = objectNode.get("pro").asText();
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String city = objectNode.get("city").asText();
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// JSONObject obj = JSON.parseObject(rspStr);
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// String region = obj.getString("pro");
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// String city = obj.getString("city");
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return String.format("%s %s", region, city);
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}
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catch (Exception e) {
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logger.error("获取地理位置异常 {}", ip);
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return StringUtils.EMPTY_STRING;
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}
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}
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/**
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* 获取ip地址对应的城市区域信息。
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* @param ip
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* @param restTemplate
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* @return
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* @date 2023-06-29
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*/
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public static final Location getLocationAli(String ip, RestTemplate restTemplate){
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Map<String, String> map = new HashMap();
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map.put("ip", ip);
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map.put("accessKey", "alibaba-inc");
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try{
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ResponseEntity<String> entity = restTemplate.postForEntity(LOCATION_URL_TAOBAO, map, String.class);
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if(!entity.getStatusCode().is2xxSuccessful()){
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logger.error("ip远程获取locatioin错误:" + entity.getBody());
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return null;
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}
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String data = entity.getBody();
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if(StringUtils.isEmpty(data)){
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logger.error("ip获取location远程返回空数据，ip = " + ip);
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return null;
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}
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Map<String, Object> locationMap = JsonUtils.jsonStringToObject(data, Map.class);
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if ("query success".equals(locationMap.get("msg").toString())) {
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Location location = new Location();
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location.setCountry(locationMap.get("country").toString());
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location.setCity(locationMap.get("city").toString());
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location.setRegion(locationMap.get("region").toString());
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return location;
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}
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return null;
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} catch (Exception ex){
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logger.error("ip获取location错误:" + ex.getMessage(), ex);
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return null;
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}
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}
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private static final String LOCATION_URL_TAOBAO = "http://ip.taobao.com/outGetIpInfo";
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}
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