From 9d91c185a6928d76b4068b938ab41180baae7c28 Mon Sep 17 00:00:00 2001
From: null <null>
Date: Mon, 15 Sep 2025 13:49:37 +0800
Subject: [PATCH] header

---
 common/protocol/http/headers.go | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/common/protocol/http/headers.go b/common/protocol/http/headers.go
index db3aa670..07d16a9f 100644
--- a/common/protocol/http/headers.go
+++ b/common/protocol/http/headers.go
@@ -9,7 +9,7 @@ import (
 )
 
 // ParseXForwardedFor parses X-Forwarded-For header in http headers, and return the IP list in it.
-func ParseXForwardedFor(header http.Header) []net.Address {
+func parseXForwardedFor(header http.Header) []net.Address {
 	xff := header.Get("X-Forwarded-For")
 	if xff == "" {
 		return nil
@@ -22,6 +22,22 @@ func ParseXForwardedFor(header http.Header) []net.Address {
 	return addrs
 }
 
+func parseCFConnectingIP(header http.Header) []net.Address {
+	value := header.Get("CF-Connecting-IP")
+	if value == "" {
+		return nil
+	}
+	return []net.Address{net.ParseAddress(value)}
+}
+
+func ParseXForwardedFor(header http.Header) []net.Address {
+	addrs := parseXForwardedFor(header)
+	if len(addrs) == 0 {
+		addrs = parseCFConnectingIP(header)
+	}
+	return addrs
+}
+
 // RemoveHopByHopHeaders removes hop by hop headers in http header list.
 func RemoveHopByHopHeaders(header http.Header) {
 	// Strip hop-by-hop header based on RFC: