From 2043d1f43944f30049c1c9fabda6b227341e58b9 Mon Sep 17 00:00:00 2001 From: RuoYi Date: Sun, 27 Mar 2022 14:36:48 +0800 Subject: [PATCH] =?UTF-8?q?=E4=BC=98=E5=8C=96IP=E5=9C=B0=E5=9D=80=E8=8E=B7?= =?UTF-8?q?=E5=8F=96=E5=88=B0=E5=A4=9A=E4=B8=AA=E7=9A=84=E9=97=AE=E9=A2=98?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../com/ruoyi/common/utils/ip/IpUtils.java | 85 +++++++++++++++++-- 1 file changed, 77 insertions(+), 8 deletions(-) diff --git a/ruoyi-common/src/main/java/com/ruoyi/common/utils/ip/IpUtils.java b/ruoyi-common/src/main/java/com/ruoyi/common/utils/ip/IpUtils.java index 771e3f840..eecf8d65f 100644 --- a/ruoyi-common/src/main/java/com/ruoyi/common/utils/ip/IpUtils.java +++ b/ruoyi-common/src/main/java/com/ruoyi/common/utils/ip/IpUtils.java @@ -4,7 +4,6 @@ import java.net.InetAddress; import java.net.UnknownHostException; import javax.servlet.http.HttpServletRequest; import com.ruoyi.common.utils.StringUtils; -import com.ruoyi.common.utils.html.EscapeUtil; /** * 获取IP方法 @@ -13,6 +12,12 @@ import com.ruoyi.common.utils.html.EscapeUtil; */ 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) @@ -41,15 +46,28 @@ public class IpUtils { ip = request.getRemoteAddr(); } - return "0:0:0:0:0:0:0:1".equals(ip) ? "127.0.0.1" : EscapeUtil.clean(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) @@ -110,7 +128,8 @@ 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); @@ -120,12 +139,14 @@ 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); @@ -136,13 +157,15 @@ 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); @@ -152,7 +175,8 @@ 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); @@ -169,6 +193,11 @@ public class IpUtils return bytes; } + /** + * 获取IP地址 + * + * @return 本地IP地址 + */ public static String getHostIp() { try @@ -181,6 +210,11 @@ public class IpUtils return "127.0.0.1"; } + /** + * 获取主机名 + * + * @return 本地主机名 + */ public static String getHostName() { try @@ -192,4 +226,39 @@ 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