sgd.git - Gitblit

			@@ -12,53 +12,62 @@
			*/
			public class IpUtils
			{
			/**
			* 获取客户端IP
			*
			* @param request 请求对象
			* @return IP地址
			*/
			public static String getIpAddr(HttpServletRequest request)
			{
			String ip = null;

			// X-Forwarded-For：Squid 服务代理
			String ipAddresses = request.getHeader("X-Forwarded-For");
			if (ipAddresses == null \|\| ipAddresses.length() == 0 \|\| "unknown".equalsIgnoreCase(ipAddresses))
			if (request == null)
			{
			// Proxy-Client-IP：apache 服务代理
			ipAddresses = request.getHeader("Proxy-Client-IP");
			return "unknown";
			}
			if (ipAddresses == null \|\| ipAddresses.length() == 0 \|\| "unknown".equalsIgnoreCase(ipAddresses))
			String ip = request.getHeader("x-forwarded-for");
			if (ip == null \|\| ip.length() == 0 \|\| "unknown".equalsIgnoreCase(ip))
			{
			// WL-Proxy-Client-IP：weblogic 服务代理
			ipAddresses = request.getHeader("WL-Proxy-Client-IP");
			ip = request.getHeader("Proxy-Client-IP");
			}
			if (ipAddresses == null \|\| ipAddresses.length() == 0 \|\| "unknown".equalsIgnoreCase(ipAddresses))
			if (ip == null \|\| ip.length() == 0 \|\| "unknown".equalsIgnoreCase(ip))
			{
			// HTTP_CLIENT_IP：有些代理服务器
			ipAddresses = request.getHeader("HTTP_CLIENT_IP");
			ip = request.getHeader("X-Forwarded-For");
			}
			if (ipAddresses == null \|\| ipAddresses.length() == 0 \|\| "unknown".equalsIgnoreCase(ipAddresses))
			if (ip == null \|\| ip.length() == 0 \|\| "unknown".equalsIgnoreCase(ip))
			{
			// X-Real-IP：nginx服务代理
			ipAddresses = request.getHeader("X-Real-IP");
			ip = request.getHeader("WL-Proxy-Client-IP");
			}
			if (ip == null \|\| ip.length() == 0 \|\| "unknown".equalsIgnoreCase(ip))
			{
			ip = request.getHeader("X-Real-IP");
			}

			// 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
			if (ipAddresses != null && ipAddresses.length() != 0)
			{
			ip = ipAddresses.split(",")[0];
			}

			// 还是不能获取到，最后再通过request.getRemoteAddr();获取
			if (ip == null \|\| ip.length() == 0 \|\| "unknown".equalsIgnoreCase(ipAddresses))
			if (ip == null \|\| ip.length() == 0 \|\| "unknown".equalsIgnoreCase(ip))
			{
			ip = request.getRemoteAddr();
			}
			return ip.equals("0:0:0:0:0:0:0:1") ? "127.0.0.1" : ip;

			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)
			@@ -119,7 +128,8 @@
			{
			case 1:
			l = Long.parseLong(elements[0]);
			if ((l < 0L) \|\| (l > 4294967295L)){
			if ((l < 0L) \|\| (l > 4294967295L))
			{
			return null;
			}
			bytes[0] = (byte) (int) (l >> 24 & 0xFF);
			@@ -129,12 +139,14 @@
			break;
			case 2:
			l = Integer.parseInt(elements[0]);
			if ((l < 0L) \|\| (l > 255L)) {
			if ((l < 0L) \|\| (l > 255L))
			{
			return null;
			}
			bytes[0] = (byte) (int) (l & 0xFF);
			l = Integer.parseInt(elements[1]);
			if ((l < 0L) \|\| (l > 16777215L)) {
			if ((l < 0L) \|\| (l > 16777215L))
			{
			return null;
			}
			bytes[1] = (byte) (int) (l >> 16 & 0xFF);
			@@ -145,13 +157,15 @@
			for (i = 0; i < 2; ++i)
			{
			l = Integer.parseInt(elements[i]);
			if ((l < 0L) \|\| (l > 255L)) {
			if ((l < 0L) \|\| (l > 255L))
			{
			return null;
			}
			bytes[i] = (byte) (int) (l & 0xFF);
			}
			l = Integer.parseInt(elements[2]);
			if ((l < 0L) \|\| (l > 65535L)) {
			if ((l < 0L) \|\| (l > 65535L))
			{
			return null;
			}
			bytes[2] = (byte) (int) (l >> 8 & 0xFF);
			@@ -161,7 +175,8 @@
			for (i = 0; i < 4; ++i)
			{
			l = Integer.parseInt(elements[i]);
			if ((l < 0L) \|\| (l > 255L)) {
			if ((l < 0L) \|\| (l > 255L))
			{
			return null;
			}
			bytes[i] = (byte) (int) (l & 0xFF);
			@@ -178,6 +193,11 @@
			return bytes;
			}

			/**
			* 获取IP地址
			*
			* @return 本地IP地址
			*/
			public static String getHostIp()
			{
			try
			@@ -190,6 +210,11 @@
			return "127.0.0.1";
			}

			/**
			* 获取主机名
			*
			* @return 本地主机名
			*/
			public static String getHostName()
			{
			try
			@@ -201,4 +226,39 @@
			}
			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 ip;
			}

			/**
			* 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);
			}
			}