From df732616d5f9125ee3860d5761447d24c54f9617 Mon Sep 17 00:00:00 2001
From: LittleSheep <littlesheep.code@hotmail.com>
Date: Sat, 6 Sep 2025 14:06:41 +0800
Subject: [PATCH] :sparkles: IP Check endpoints

---
 .../Controllers/WellKnownController.cs        | 29 +++++++++++++++
 DysonNetwork.Pass/IpCheckController.cs        | 37 +++++++++++++++++++
 2 files changed, 66 insertions(+)
 create mode 100644 DysonNetwork.Pass/IpCheckController.cs

diff --git a/DysonNetwork.Gateway/Controllers/WellKnownController.cs b/DysonNetwork.Gateway/Controllers/WellKnownController.cs
index 94078f0..3f1c16c 100644
--- a/DysonNetwork.Gateway/Controllers/WellKnownController.cs
+++ b/DysonNetwork.Gateway/Controllers/WellKnownController.cs
@@ -13,6 +13,35 @@ public class WellKnownController(
     IEtcdClient etcdClient)
     : ControllerBase
 {
+    public class IpCheckResponse
+    {
+        public string? RemoteIp { get; set; }
+        public string? XForwardedFor { get; set; }
+        public string? XForwardedProto { get; set; }
+        public string? XForwardedHost { get; set; }
+        public string? XRealIp { get; set; }
+    }
+    
+    [HttpGet("ip-check")]
+    public ActionResult<IpCheckResponse> GetIpCheck()
+    {
+        var ip = HttpContext.Connection.RemoteIpAddress?.ToString();
+
+        var xForwardedFor = Request.Headers["X-Forwarded-For"].FirstOrDefault();
+        var xForwardedProto = Request.Headers["X-Forwarded-Proto"].FirstOrDefault();
+        var xForwardedHost = Request.Headers["X-Forwarded-Host"].FirstOrDefault();
+        var realIp = Request.Headers["X-Real-IP"].FirstOrDefault();
+
+        return Ok(new IpCheckResponse
+        {
+            RemoteIp = ip,
+            XForwardedFor = xForwardedFor,
+            XForwardedProto = xForwardedProto,
+            XForwardedHost = xForwardedHost,
+            XRealIp = realIp
+        });
+    }
+    
     [HttpGet("domains")]
     public IActionResult GetDomainMappings()
     {
diff --git a/DysonNetwork.Pass/IpCheckController.cs b/DysonNetwork.Pass/IpCheckController.cs
new file mode 100644
index 0000000..abc90f7
--- /dev/null
+++ b/DysonNetwork.Pass/IpCheckController.cs
@@ -0,0 +1,37 @@
+using Microsoft.AspNetCore.Mvc;
+
+namespace DysonNetwork.Pass;
+
+[ApiController]
+[Route("/api/ip-check")]
+public class IpCheckController : ControllerBase
+{
+    public class IpCheckResponse
+    {
+        public string? RemoteIp { get; set; }
+        public string? XForwardedFor { get; set; }
+        public string? XForwardedProto { get; set; }
+        public string? XForwardedHost { get; set; }
+        public string? XRealIp { get; set; }
+    }
+    
+    [HttpGet("ip-check")]
+    public ActionResult<IpCheckResponse> GetIpCheck()
+    {
+        var ip = HttpContext.Connection.RemoteIpAddress?.ToString();
+
+        var xForwardedFor = Request.Headers["X-Forwarded-For"].FirstOrDefault();
+        var xForwardedProto = Request.Headers["X-Forwarded-Proto"].FirstOrDefault();
+        var xForwardedHost = Request.Headers["X-Forwarded-Host"].FirstOrDefault();
+        var realIp = Request.Headers["X-Real-IP"].FirstOrDefault();
+
+        return Ok(new IpCheckResponse
+        {
+            RemoteIp = ip,
+            XForwardedFor = xForwardedFor,
+            XForwardedProto = xForwardedProto,
+            XForwardedHost = xForwardedHost,
+            XRealIp = realIp
+        });
+    } 
+}
\ No newline at end of file