| | |
| | | import java.net.UnknownHostException;
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| | | import javax.servlet.http.HttpServletRequest;
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| | | import com.ruoyi.common.utils.StringUtils;
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| | | import com.ruoyi.common.utils.html.EscapeUtil;
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| | |
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| | | /**
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| | | * 获取IP方法
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| | |
| | | */
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| | | public class IpUtils
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| | | {
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| | | /**
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| | | * 获取客户端IP
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| | | * |
| | | * @param request 请求对象
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| | | * @return IP地址
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| | | */
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| | | public static String getIpAddr(HttpServletRequest request)
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| | | {
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| | | if (request == null)
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| | |
| | | {
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| | | ip = request.getRemoteAddr();
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| | | }
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| | | return "0:0:0:0:0:0:0:1".equals(ip) ? "127.0.0.1" : EscapeUtil.clean(ip);
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| | |
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| | | return "0:0:0:0:0:0:0:1".equals(ip) ? "127.0.0.1" : getMultistageReverseProxyIp(ip);
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| | | }
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| | |
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| | | /**
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| | | * 检查是否为内部IP地址
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| | | * |
| | | * @param ip IP地址
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| | | * @return 结果
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| | | */
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| | | public static boolean internalIp(String ip)
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| | | {
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| | | byte[] addr = textToNumericFormatV4(ip);
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| | | return internalIp(addr) || "127.0.0.1".equals(ip);
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| | | }
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| | |
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| | | /**
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| | | * 检查是否为内部IP地址
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| | | * |
| | | * @param addr byte地址
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| | | * @return 结果
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| | | */
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| | | private static boolean internalIp(byte[] addr)
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| | | {
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| | | if (StringUtils.isNull(addr) || addr.length < 2)
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| | |
| | | {
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| | | case 1:
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| | | l = Long.parseLong(elements[0]);
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| | | if ((l < 0L) || (l > 4294967295L)) {
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| | | if ((l < 0L) || (l > 4294967295L))
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| | | {
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| | | return null;
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| | | }
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| | | bytes[0] = (byte) (int) (l >> 24 & 0xFF);
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| | |
| | | break;
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| | | case 2:
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| | | l = Integer.parseInt(elements[0]);
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| | | if ((l < 0L) || (l > 255L)) {
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| | | if ((l < 0L) || (l > 255L))
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| | | {
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| | | return null;
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| | | }
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| | | bytes[0] = (byte) (int) (l & 0xFF);
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| | | l = Integer.parseInt(elements[1]);
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| | | if ((l < 0L) || (l > 16777215L)) {
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| | | if ((l < 0L) || (l > 16777215L))
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| | | {
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| | | return null;
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| | | }
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| | | bytes[1] = (byte) (int) (l >> 16 & 0xFF);
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| | |
| | | for (i = 0; i < 2; ++i)
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| | | {
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| | | l = Integer.parseInt(elements[i]);
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| | | if ((l < 0L) || (l > 255L)) {
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| | | if ((l < 0L) || (l > 255L))
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| | | {
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| | | return null;
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| | | }
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| | | bytes[i] = (byte) (int) (l & 0xFF);
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| | | }
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| | | l = Integer.parseInt(elements[2]);
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| | | if ((l < 0L) || (l > 65535L)) {
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| | | if ((l < 0L) || (l > 65535L))
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| | | {
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| | | return null;
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| | | }
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| | | bytes[2] = (byte) (int) (l >> 8 & 0xFF);
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| | |
| | | for (i = 0; i < 4; ++i)
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| | | {
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| | | l = Integer.parseInt(elements[i]);
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| | | if ((l < 0L) || (l > 255L)) {
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| | | if ((l < 0L) || (l > 255L))
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| | | {
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| | | return null;
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| | | }
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| | | bytes[i] = (byte) (int) (l & 0xFF);
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| | |
| | | return bytes;
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| | | }
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| | |
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| | | /**
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| | | * 获取IP地址
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| | | * |
| | | * @return 本地IP地址
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| | | */
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| | | public static String getHostIp()
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| | | {
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| | | try
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| | |
| | | return "127.0.0.1";
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| | | }
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| | |
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| | | /**
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| | | * 获取主机名
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| | | * |
| | | * @return 本地主机名
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| | | */
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| | | public static String getHostName()
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| | | {
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| | | try
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| | |
| | | }
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| | | return "未知";
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| | | }
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| | |
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| | | /**
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| | | * 从多级反向代理中获得第一个非unknown IP地址
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| | | *
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| | | * @param ip 获得的IP地址
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| | | * @return 第一个非unknown IP地址
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| | | */
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| | | public static String getMultistageReverseProxyIp(String ip)
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| | | {
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| | | // 多级反向代理检测
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| | | if (ip != null && ip.indexOf(",") > 0)
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| | | {
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| | | final String[] ips = ip.trim().split(",");
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| | | for (String subIp : ips)
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| | | {
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| | | if (false == isUnknown(subIp))
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| | | {
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| | | ip = subIp;
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| | | break;
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| | | }
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| | | }
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| | | }
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| | | return ip;
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| | | }
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| | |
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| | | /**
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| | | * 检测给定字符串是否为未知,多用于检测HTTP请求相关
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| | | *
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| | | * @param checkString 被检测的字符串
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| | | * @return 是否未知
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| | | */
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| | | public static boolean isUnknown(String checkString)
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| | | {
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| | | return StringUtils.isBlank(checkString) || "unknown".equalsIgnoreCase(checkString);
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| | | }
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| | | } |