From a1cf719d268a9d16db81ece94e75037c844f898f Mon Sep 17 00:00:00 2001
From: 疯狂的狮子li <15040126243@163.com>
Date: 星期二, 18 二月 2020 14:47:23 +0800
Subject: [PATCH] Merge branch 'master' of https://gitee.com/y_project/RuoYi-Vue
---
ruoyi/src/main/java/com/ruoyi/common/utils/ip/IpUtils.java | 189 +++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 189 insertions(+), 0 deletions(-)
diff --git a/ruoyi/src/main/java/com/ruoyi/common/utils/ip/IpUtils.java b/ruoyi/src/main/java/com/ruoyi/common/utils/ip/IpUtils.java
new file mode 100644
index 0000000..2b9a267
--- /dev/null
+++ b/ruoyi/src/main/java/com/ruoyi/common/utils/ip/IpUtils.java
@@ -0,0 +1,189 @@
+package com.ruoyi.common.utils.ip;
+
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+import javax.servlet.http.HttpServletRequest;
+import com.ruoyi.common.utils.StringUtils;
+
+/**
+ * 鑾峰彇IP鏂规硶
+ *
+ * @author ruoyi
+ */
+public class IpUtils
+{
+ 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" : ip;
+ }
+
+ public static boolean internalIp(String ip)
+ {
+ byte[] addr = textToNumericFormatV4(ip);
+ return internalIp(addr) || "127.0.0.1".equals(ip);
+ }
+
+ 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;
+ }
+ }
+
+ /**
+ * 灏咺Pv4鍦板潃杞崲鎴愬瓧鑺�
+ *
+ * @param text IPv4鍦板潃
+ * @return byte 瀛楄妭
+ */
+ 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;
+ }
+
+ public static String getHostIp()
+ {
+ try
+ {
+ return InetAddress.getLocalHost().getHostAddress();
+ }
+ catch (UnknownHostException e)
+ {
+ }
+ return "127.0.0.1";
+ }
+
+ public static String getHostName()
+ {
+ try
+ {
+ return InetAddress.getLocalHost().getHostName();
+ }
+ catch (UnknownHostException e)
+ {
+ }
+ return "鏈煡";
+ }
+}
\ No newline at end of file
--
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