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优化IP地址获取到多个的问题

master
RuoYi 2022-03-27 11:31:48 +08:00
parent f60cb25245
commit 757c0eebaf
1 changed files with 76 additions and 7 deletions
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83
ruoyi-common/src/main/java/com/ruoyi/common/utils/IpUtils.java
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@ -11,6 +11,12 @@ import javax.servlet.http.HttpServletRequest;
*/ */
public class IpUtils 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) public static String getIpAddr(HttpServletRequest request)
{ {
if (request == null) if (request == null)
@ -40,15 +46,27 @@ public class IpUtils
ip = request.getRemoteAddr(); 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) public static boolean internalIp(String ip)
{ {
byte[] addr = textToNumericFormatV4(ip); byte[] addr = textToNumericFormatV4(ip);
return internalIp(addr) || "127.0.0.1".equals(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) private static boolean internalIp(byte[] addr)
{ {
if (StringUtils.isNull(addr) || addr.length < 2) if (StringUtils.isNull(addr) || addr.length < 2)
@ -109,7 +127,8 @@ public class IpUtils
{ {
case 1: case 1:
l = Long.parseLong(elements[0]); l = Long.parseLong(elements[0]);
if ((l < 0L) || (l > 4294967295L)) { if ((l < 0L) || (l > 4294967295L))
{
return null; return null;
} }
bytes[0] = (byte) (int) (l >> 24 & 0xFF); bytes[0] = (byte) (int) (l >> 24 & 0xFF);
@ -119,12 +138,14 @@ public class IpUtils
break; break;
case 2: case 2:
l = Integer.parseInt(elements[0]); l = Integer.parseInt(elements[0]);
if ((l < 0L) || (l > 255L)) { if ((l < 0L) || (l > 255L))
{
return null; return null;
} }
bytes[0] = (byte) (int) (l & 0xFF); bytes[0] = (byte) (int) (l & 0xFF);
l = Integer.parseInt(elements[1]); l = Integer.parseInt(elements[1]);
if ((l < 0L) || (l > 16777215L)) { if ((l < 0L) || (l > 16777215L))
{
return null; return null;
} }
bytes[1] = (byte) (int) (l >> 16 & 0xFF); bytes[1] = (byte) (int) (l >> 16 & 0xFF);
@ -135,13 +156,15 @@ public class IpUtils
for (i = 0; i < 2; ++i) for (i = 0; i < 2; ++i)
{ {
l = Integer.parseInt(elements[i]); l = Integer.parseInt(elements[i]);
if ((l < 0L) || (l > 255L)) { if ((l < 0L) || (l > 255L))
{
return null; return null;
} }
bytes[i] = (byte) (int) (l & 0xFF); bytes[i] = (byte) (int) (l & 0xFF);
} }
l = Integer.parseInt(elements[2]); l = Integer.parseInt(elements[2]);
if ((l < 0L) || (l > 65535L)) { if ((l < 0L) || (l > 65535L))
{
return null; return null;
} }
bytes[2] = (byte) (int) (l >> 8 & 0xFF); bytes[2] = (byte) (int) (l >> 8 & 0xFF);
@ -151,7 +174,8 @@ public class IpUtils
for (i = 0; i < 4; ++i) for (i = 0; i < 4; ++i)
{ {
l = Integer.parseInt(elements[i]); l = Integer.parseInt(elements[i]);
if ((l < 0L) || (l > 255L)) { if ((l < 0L) || (l > 255L))
{
return null; return null;
} }
bytes[i] = (byte) (int) (l & 0xFF); bytes[i] = (byte) (int) (l & 0xFF);
@ -168,6 +192,11 @@ public class IpUtils
return bytes; return bytes;
} }
/**
* 获取IP地址
*
* @return 本地IP地址
*/
public static String getHostIp() public static String getHostIp()
{ {
try try
@ -180,6 +209,11 @@ public class IpUtils
return "127.0.0.1"; return "127.0.0.1";
} }
/**
* 获取主机名
*
* @return 本地主机名
*/
public static String getHostName() public static String getHostName()
{ {
try try
@ -191,4 +225,39 @@ public class IpUtils
} }
return "未知"; 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);
}
} }