初始化

2022-06-21 20:47:46 +08:00
parent b666a24a98
commit 59da3376c1
1246 changed files with 129600 additions and 0 deletions
--- a/pqs-gateway/src/main/java/com/njcn/gateway/utils/IpUtils.java
+++ b/pqs-gateway/src/main/java/com/njcn/gateway/utils/IpUtils.java
@@ -0,0 +1,86 @@
+package com.njcn.gateway.utils;
+
+import cn.hutool.core.util.StrUtil;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.server.reactive.ServerHttpRequest;
+
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+import java.util.Optional;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+/**
+ * @author hongawen
+ * @version 1.0.0
+ * @date 2021年05月25日 11:25
+ */
+@Slf4j
+public class IpUtils {
+
+
+    private static final String UNKNOWN = "unknown";
+    private static final String LOCALHOST_IPV4 = "127.0.0.1";
+    private static final String LOCALHOST_IPV6 = "0:0:0:0:0:0:0:1";
+    private static final String SEPARATOR = ",";
+
+    private static final String HEADER_X_FORWARDED_FOR = "x-forwarded-for";
+    private static final String HEADER_PROXY_CLIENT_IP = "Proxy-Client-IP";
+    private static final String HEADER_WL_PROXY_CLIENT_IP = "WL-Proxy-Client-IP";
+
+    private static final int IP_LEN = 15;
+
+    /**
+     * 获取用户真实IP地址，不直接使用request.getRemoteAddr();的原因是有可能用户使用了代理软件方式避免真实IP地址,
+     * <p>
+     * 可是，如果通过了多级反向代理的话，X-Forwarded-For的值并不止一个，而是一串IP值，究竟哪个才是真正的用户端的真实IP呢？
+     * 答案是取X-Forwarded-For中第一个非unknown的有效IP字符串。
+     * <p>
+     * 如：X-Forwarded-For：192.168.1.110, 192.168.1.120, 192.168.1.130,
+     * 192.168.1.100
+     * <p>
+     * 用户真实IP为： 192.168.1.110
+     */
+    public static String getRealIpAddress(ServerHttpRequest request) {
+        HttpHeaders headers = request.getHeaders();
+        String ipAddress = headers.getFirst(HEADER_X_FORWARDED_FOR);
+        if (StrUtil.isBlankIfStr(ipAddress) || UNKNOWN.equalsIgnoreCase(ipAddress)) {
+            ipAddress = headers.getFirst(HEADER_PROXY_CLIENT_IP);
+        }
+        if (StrUtil.isBlankIfStr(ipAddress) || UNKNOWN.equalsIgnoreCase(ipAddress)) {
+            ipAddress = headers.getFirst(HEADER_WL_PROXY_CLIENT_IP);
+        }
+        if (StrUtil.isBlankIfStr(ipAddress) || UNKNOWN.equalsIgnoreCase(ipAddress)) {
+            ipAddress = Optional.ofNullable(request.getRemoteAddress())
+                    .map(address -> address.getAddress().getHostAddress())
+                    .orElse("");
+            if (LOCALHOST_IPV4.equals(ipAddress) || LOCALHOST_IPV6.equals(ipAddress)) {
+                // 根据网卡取本机配置的IP
+                try {
+                    InetAddress inet = InetAddress.getLocalHost();
+                    ipAddress = inet.getHostAddress();
+                } catch (UnknownHostException e) {
+                    log.error("解析请求IP失败,{}", Stream.of(e.getStackTrace()).map(StackTraceElement::toString).collect(Collectors.joining(StrUtil.CRLF)));
+                }
+            }
+        }
+
+        // 对于通过多个代理的情况，第一个IP为客户端真实IP,多个IP按照','分割
+        if (ipAddress != null && ipAddress.length() > IP_LEN) {
+            int index = ipAddress.indexOf(SEPARATOR);
+            if (index > 0) {
+                ipAddress = ipAddress.substring(0, index);
+            }
+        }
+        return ipAddress;
+    }
+
+    /**
+     * 获取客户端端口
+     */
+    public static Integer getPort(ServerHttpRequest request) {
+        return request.getRemoteAddress().getPort();
+    }
+
+}