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优化IP地址获取到多个的问题

This commit is contained in:
RuoYi 2022-03-27 14:36:48 +08:00
parent 61034d4dde
commit 2043d1f439
1 changed files with 77 additions and 8 deletions
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85
ruoyi-common/src/main/java/com/ruoyi/common/utils/ip/IpUtils.java
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@ -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);
}
}