From e961e52dea70a4e8831e4fbb174b10df4db4480d Mon Sep 17 00:00:00 2001
From: Niklas Roth <36939232+Nirostar@users.noreply.github.com>
Date: Tue, 8 Apr 2025 14:44:11 +0200
Subject: [PATCH] Fix IPv6 whitelisting for Link-Local addresses by removing
 the scope ID

---
 src/mod/netutils/ipmatch.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/mod/netutils/ipmatch.go b/src/mod/netutils/ipmatch.go
index a9733c9..d969454 100644
--- a/src/mod/netutils/ipmatch.go
+++ b/src/mod/netutils/ipmatch.go
@@ -58,6 +58,11 @@ func GetRequesterIP(r *http.Request) string {
 		requesterRawIp = requesterRawIp[1 : len(requesterRawIp)-1]
 	}
 
+	// Trim away scope ID if present (e.g. %eth0 in IPv6)
+	if i := strings.Index(requesterRawIp, "%"); i != -1 {
+		requesterRawIp = requesterRawIp[:i]
+	}
+
 	return requesterRawIp
 }