增加代理ip解析

server/src/main/java/com/fanjiao/captcha/server/CaptchaController.java

@@ -37,6 +37,17 @@ public class CaptchaController {
     ) {
         var type = getRandomType();
         var ip = request.getRemoteAddr();
+
+        var proxyIp = request.getHeader("x-forwarded-for");
+        if (proxyIp != null && !proxyIp.isEmpty()) {
+            ip = proxyIp.split(",")[0].trim();
+        } else {
+            proxyIp = request.getHeader("x-real-ip");
+            if (proxyIp != null && !proxyIp.isEmpty()) {
+                ip = proxyIp;
+            }
+        }
+
         Map<String, Object> extra = null;
         if (data != null) {
             extra = data.getExtra();