java/qijisheng.git

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			package com.ruoyi.common.core.utils.ip;

			import java.net.InetAddress;
			import java.net.UnknownHostException;
			import javax.servlet.http.HttpServletRequest;
			import com.ruoyi.common.core.utils.ServletUtils;
			import com.ruoyi.common.core.utils.StringUtils;

			/**
			* 获取IP方法
			*
			* @author ruoyi
			*/
			public class IpUtils
			{
			public final static String REGX_0_255 = "(25[0-5]\|2[0-4]\\d\|1\\d{2}\|[1-9]\\d\|\\d)";
			// 匹配 ip
			public final static String REGX_IP = "((" + REGX_0_255 + "\\.){3}" + REGX_0_255 + ")";
			public final static String REGX_IP_WILDCARD = "(((\\\\.){3}\\)\|(" + REGX_0_255 + "(\\.\\){3})\|(" + REGX_0_255 + "\\." + REGX_0_255 + ")(\\.\\){2}" + "\|((" + REGX_0_255 + "\\.){3}\\*))";
			// 匹配网段
			public final static String REGX_IP_SEG = "(" + REGX_IP + "\\-" + REGX_IP + ")";

			/**
			* 获取客户端IP
			*
			* @return IP地址
			*/
			public static String getIpAddr()
			{
			return getIpAddr(ServletUtils.getRequest());
			}

			/**
			* 获取客户端IP
			*
			* @param request 请求对象
			* @return IP地址
			*/
			public static String getIpAddr(HttpServletRequest request)
			{
			if (request == null)
			{
			return "unknown";
			}
			String ip = request.getHeader("x-forwarded-for");
			if (ip == null \|\| ip.length() == 0 \|\| "unknown".equalsIgnoreCase(ip))
			{
			ip = request.getHeader("Proxy-Client-IP");
			}
			if (ip == null \|\| ip.length() == 0 \|\| "unknown".equalsIgnoreCase(ip))
			{
			ip = request.getHeader("X-Forwarded-For");
			}
			if (ip == null \|\| ip.length() == 0 \|\| "unknown".equalsIgnoreCase(ip))
			{
			ip = request.getHeader("WL-Proxy-Client-IP");
			}
			if (ip == null \|\| ip.length() == 0 \|\| "unknown".equalsIgnoreCase(ip))
			{
			ip = request.getHeader("X-Real-IP");
			}

			if (ip == null \|\| ip.length() == 0 \|\| "unknown".equalsIgnoreCase(ip))
			{
			ip = request.getRemoteAddr();
			}

			return "0:0:0:0:0:0:0:1".equals(ip) ? "127.0.0.1" : getMultistageReverseProxyIp(ip);
			}

			/**
			* 检查是否为内部IP地址
			*
			* @param ip IP地址
			* @return 结果
			*/
			public static boolean internalIp(String ip)
			{
			byte[] addr = textToNumericFormatV4(ip);
			return internalIp(addr) \|\| "127.0.0.1".equals(ip);
			}

			/**
			* 检查是否为内部IP地址
			*
			* @param addr byte地址
			* @return 结果
			*/
			private static boolean internalIp(byte[] addr)
			{
			if (StringUtils.isNull(addr) \|\| addr.length < 2)
			{
			return true;
			}
			final byte b0 = addr[0];
			final byte b1 = addr[1];
			// 10.x.x.x/8
			final byte SECTION_1 = 0x0A;
			// 172.16.x.x/12
			final byte SECTION_2 = (byte) 0xAC;
			final byte SECTION_3 = (byte) 0x10;
			final byte SECTION_4 = (byte) 0x1F;
			// 192.168.x.x/16
			final byte SECTION_5 = (byte) 0xC0;
			final byte SECTION_6 = (byte) 0xA8;
			switch (b0)
			{
			case SECTION_1:
			return true;
			case SECTION_2:
			if (b1 >= SECTION_3 && b1 <= SECTION_4)
			{
			return true;
			}
			case SECTION_5:
			switch (b1)
			{
			case SECTION_6:
			return true;
			}
			default:
			return false;
			}
			}

			/**
			* 将IPv4地址转换成字节
			*
			* @param text IPv4地址
			* @return byte 字节
			*/
			public static byte[] textToNumericFormatV4(String text)
			{
			if (text.length() == 0)
			{
			return null;
			}

			byte[] bytes = new byte[4];
			String[] elements = text.split("\\.", -1);
			try
			{
			long l;
			int i;
			switch (elements.length)
			{
			case 1:
			l = Long.parseLong(elements[0]);
			if ((l < 0L) \|\| (l > 4294967295L))
			{
			return null;
			}
			bytes[0] = (byte) (int) (l >> 24 & 0xFF);
			bytes[1] = (byte) (int) ((l & 0xFFFFFF) >> 16 & 0xFF);
			bytes[2] = (byte) (int) ((l & 0xFFFF) >> 8 & 0xFF);
			bytes[3] = (byte) (int) (l & 0xFF);
			break;
			case 2:
			l = Integer.parseInt(elements[0]);
			if ((l < 0L) \|\| (l > 255L))
			{
			return null;
			}
			bytes[0] = (byte) (int) (l & 0xFF);
			l = Integer.parseInt(elements[1]);
			if ((l < 0L) \|\| (l > 16777215L))
			{
			return null;
			}
			bytes[1] = (byte) (int) (l >> 16 & 0xFF);
			bytes[2] = (byte) (int) ((l & 0xFFFF) >> 8 & 0xFF);
			bytes[3] = (byte) (int) (l & 0xFF);
			break;
			case 3:
			for (i = 0; i < 2; ++i)
			{
			l = Integer.parseInt(elements[i]);
			if ((l < 0L) \|\| (l > 255L))
			{
			return null;
			}
			bytes[i] = (byte) (int) (l & 0xFF);
			}
			l = Integer.parseInt(elements[2]);
			if ((l < 0L) \|\| (l > 65535L))
			{
			return null;
			}
			bytes[2] = (byte) (int) (l >> 8 & 0xFF);
			bytes[3] = (byte) (int) (l & 0xFF);
			break;
			case 4:
			for (i = 0; i < 4; ++i)
			{
			l = Integer.parseInt(elements[i]);
			if ((l < 0L) \|\| (l > 255L))
			{
			return null;
			}
			bytes[i] = (byte) (int) (l & 0xFF);
			}
			break;
			default:
			return null;
			}
			}
			catch (NumberFormatException e)
			{
			return null;
			}
			return bytes;
			}

			/**
			* 获取IP地址
			*
			* @return 本地IP地址
			*/
			public static String getHostIp()
			{
			try
			{
			return InetAddress.getLocalHost().getHostAddress();
			}
			catch (UnknownHostException e)
			{
			}
			return "127.0.0.1";
			}

			/**
			* 获取主机名
			*
			* @return 本地主机名
			*/
			public static String getHostName()
			{
			try
			{
			return InetAddress.getLocalHost().getHostName();
			}
			catch (UnknownHostException e)
			{
			}
			return "未知";
			}

			/**
			* 从多级反向代理中获得第一个非unknown IP地址
			*
			* @param ip 获得的IP地址
			* @return 第一个非unknown IP地址
			*/
			public static String getMultistageReverseProxyIp(String ip)
			{
			// 多级反向代理检测
			if (ip != null && ip.indexOf(",") > 0)
			{
			final String[] ips = ip.trim().split(",");
			for (String subIp : ips)
			{
			if (false == isUnknown(subIp))
			{
			ip = subIp;
			break;
			}
			}
			}
			return StringUtils.substring(ip, 0, 255);
			}

			/**
			* 检测给定字符串是否为未知，多用于检测HTTP请求相关
			*
			* @param checkString 被检测的字符串
			* @return 是否未知
			*/
			public static boolean isUnknown(String checkString)
			{
			return StringUtils.isBlank(checkString) \|\| "unknown".equalsIgnoreCase(checkString);
			}

			/**
			* 是否为IP
			*/
			public static boolean isIP(String ip)
			{
			return StringUtils.isNotBlank(ip) && ip.matches(REGX_IP);
			}

			/**
			* 是否为IP，或 *为间隔的通配符地址
			*/
			public static boolean isIpWildCard(String ip)
			{
			return StringUtils.isNotBlank(ip) && ip.matches(REGX_IP_WILDCARD);
			}

			/**
			* 检测参数是否在ip通配符里
			*/
			public static boolean ipIsInWildCardNoCheck(String ipWildCard, String ip)
			{
			String[] s1 = ipWildCard.split("\\.");
			String[] s2 = ip.split("\\.");
			boolean isMatchedSeg = true;
			for (int i = 0; i < s1.length && !s1[i].equals("*"); i++)
			{
			if (!s1[i].equals(s2[i]))
			{
			isMatchedSeg = false;
			break;
			}
			}
			return isMatchedSeg;
			}

			/**
			* 是否为特定格式如:“10.10.10.1-10.10.10.99”的ip段字符串
			*/
			public static boolean isIPSegment(String ipSeg)
			{
			return StringUtils.isNotBlank(ipSeg) && ipSeg.matches(REGX_IP_SEG);
			}

			/**
			* 判断ip是否在指定网段中
			*/
			public static boolean ipIsInNetNoCheck(String iparea, String ip)
			{
			int idx = iparea.indexOf('-');
			String[] sips = iparea.substring(0, idx).split("\\.");
			String[] sipe = iparea.substring(idx + 1).split("\\.");
			String[] sipt = ip.split("\\.");
			long ips = 0L, ipe = 0L, ipt = 0L;
			for (int i = 0; i < 4; ++i)
			{
			ips = ips << 8 \| Integer.parseInt(sips[i]);
			ipe = ipe << 8 \| Integer.parseInt(sipe[i]);
			ipt = ipt << 8 \| Integer.parseInt(sipt[i]);
			}
			if (ips > ipe)
			{
			long t = ips;
			ips = ipe;
			ipe = t;
			}
			return ips <= ipt && ipt <= ipe;
			}

			/**
			* 校验ip是否符合过滤串规则
			*
			* @param filter 过滤IP列表,支持后缀'*'通配,支持网段如:`10.10.10.1-10.10.10.99`
			* @param ip 校验IP地址
			* @return boolean 结果
			*/
			public static boolean isMatchedIp(String filter, String ip)
			{
			if (StringUtils.isEmpty(filter) \|\| StringUtils.isEmpty(ip))
			{
			return false;
			}
			String[] ips = filter.split(";");
			for (String iStr : ips)
			{
			if (isIP(iStr) && iStr.equals(ip))
			{
			return true;
			}
			else if (isIpWildCard(iStr) && ipIsInWildCardNoCheck(iStr, ip))
			{
			return true;
			}
			else if (isIPSegment(iStr) && ipIsInNetNoCheck(iStr, ip))
			{
			return true;
			}
			}
			return false;
			}
			}