From f6bf98fa28e1c578fcde98b252eff608e2d0f9d9 Mon Sep 17 00:00:00 2001
From: DerRockWolf <50499906+DerRockWolf@users.noreply.github.com>
Date: Sat, 15 Nov 2025 20:31:43 +0100
Subject: [PATCH] feat(internal/headers): extend debug logging of
 X-Forwarded-For middlewares (#1269)

---
 internal/headers.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/internal/headers.go b/internal/headers.go
index 21601d2..60e5371 100644
--- a/internal/headers.go
+++ b/internal/headers.go
@@ -87,7 +87,7 @@ func XForwardedForToXRealIP(next http.Handler) http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		if xffHeader := r.Header.Get("X-Forwarded-For"); r.Header.Get("X-Real-Ip") == "" && xffHeader != "" {
 			ip := xff.Parse(xffHeader)
-			slog.Debug("setting x-real-ip", "val", ip)
+			slog.Debug("setting X-Real-Ip from X-Forwarded-For", "to", ip, "x-forwarded-for", xffHeader)
 			r.Header.Set("X-Real-Ip", ip)
 		}
 
@@ -129,6 +129,8 @@ func XForwardedForUpdate(stripPrivate bool, next http.Handler) http.Handler {
 		} else {
 			r.Header.Set("X-Forwarded-For", xffHeaderString)
 		}
+
+		slog.Debug("updating X-Forwarded-For", "original", origXFFHeader, "new", xffHeaderString)
 	})
 }