diff --git a/ruoyi-common/src/main/java/com/ruoyi/common/utils/IpUtils.java b/ruoyi-common/src/main/java/com/ruoyi/common/utils/IpUtils.java index d699215a..5b3baa00 100644 --- a/ruoyi-common/src/main/java/com/ruoyi/common/utils/IpUtils.java +++ b/ruoyi-common/src/main/java/com/ruoyi/common/utils/IpUtils.java @@ -11,6 +11,12 @@ import javax.servlet.http.HttpServletRequest; */ 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) { if (request == null) @@ -40,15 +46,27 @@ public class IpUtils ip = request.getRemoteAddr(); } - return "0:0:0:0:0:0:0:1".equals(ip) ? "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) @@ -109,7 +127,8 @@ public class IpUtils { 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); @@ -119,12 +138,14 @@ public class IpUtils 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); @@ -135,13 +156,15 @@ public class IpUtils 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); @@ -151,7 +174,8 @@ public class IpUtils 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); @@ -168,6 +192,11 @@ public class IpUtils return bytes; } + /** + * 获取IP地址 + * + * @return 本地IP地址 + */ public static String getHostIp() { try @@ -180,6 +209,11 @@ public class IpUtils return "127.0.0.1"; } + /** + * 获取主机名 + * + * @return 本地主机名 + */ public static String getHostName() { try @@ -191,4 +225,39 @@ public class IpUtils } 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); + } } \ No newline at end of file