From 8f420325124e0709d6ad23b35517a11a04f067f6 Mon Sep 17 00:00:00 2001
From: Nicolas Constant <github@nicolas-constant.com>
Date: Sat, 31 Dec 2022 00:05:12 -0500
Subject: [PATCH] added redirected remote ip detection

---
 src/BirdsiteLive/Middlewares/IpWhitelistingMiddleware.cs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/BirdsiteLive/Middlewares/IpWhitelistingMiddleware.cs b/src/BirdsiteLive/Middlewares/IpWhitelistingMiddleware.cs
index e09ad27..b8490ae 100644
--- a/src/BirdsiteLive/Middlewares/IpWhitelistingMiddleware.cs
+++ b/src/BirdsiteLive/Middlewares/IpWhitelistingMiddleware.cs
@@ -41,6 +41,14 @@ namespace BirdsiteLive.Middlewares
             if (_ipWhitelistingSet)
             {
                 var remoteIp = context.Connection.RemoteIpAddress;
+
+                var forwardedIp = context.Request.Headers.FirstOrDefault(x => x.Key == "X-Real-IP").Value.ToString();
+                if (!string.IsNullOrWhiteSpace(forwardedIp))
+                {
+                    _logger.LogDebug("Redirected IP address detected");
+                    remoteIp = IPAddress.Parse(forwardedIp);
+                }
+
                 _logger.LogDebug("Request from Remote IP address: {RemoteIp}", remoteIp);
 
                 var bytes = remoteIp.GetAddressBytes();