From 19e03abf0b2a41173ba46f70b29f5b23942f441e Mon Sep 17 00:00:00 2001
From: GoEdgeLab <goedgecloud@gmail.com>
Date: Mon, 26 Jul 2021 15:37:47 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0referer.host=E8=AF=B7?=
 =?UTF-8?q?=E6=B1=82=E5=8F=98=E9=87=8F?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 internal/nodes/http_request.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/internal/nodes/http_request.go b/internal/nodes/http_request.go
index 81aa2d2..57c6603 100644
--- a/internal/nodes/http_request.go
+++ b/internal/nodes/http_request.go
@@ -570,6 +570,12 @@ func (this *HTTPRequest) Format(source string) string {
 			return this.Host
 		case "referer":
 			return this.RawReq.Referer()
+		case "referer.host":
+			u, err := url.Parse(this.RawReq.Referer())
+			if err == nil {
+				return u.Host
+			}
+			return ""
 		case "userAgent":
 			return this.RawReq.UserAgent()
 		case "contentType":