From 36069cbe6d2d9adcc2ff96a02a4911f8c7e6e29b Mon Sep 17 00:00:00 2001
From: yusing <yusing@6uo.me>
Date: Wed, 18 Dec 2024 11:44:38 +0800
Subject: [PATCH] add host filter

---
 internal/net/http/accesslog/config.go | 1 +
 internal/net/http/accesslog/filter.go | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/internal/net/http/accesslog/config.go b/internal/net/http/accesslog/config.go
index 2760803..69115c7 100644
--- a/internal/net/http/accesslog/config.go
+++ b/internal/net/http/accesslog/config.go
@@ -7,6 +7,7 @@ type (
 	Filters struct {
 		StatusCodes LogFilter[*StatusCodeRange] `json:"status_codes"`
 		Method      LogFilter[HTTPMethod]       `json:"method"`
+		Host        LogFilter[Host]             `json:"host"`
 		Headers     LogFilter[*HTTPHeader]      `json:"headers"` // header exists or header == value
 		CIDR        LogFilter[*CIDR]            `json:"cidr"`
 	}
diff --git a/internal/net/http/accesslog/filter.go b/internal/net/http/accesslog/filter.go
index 00fc1b7..cc1f146 100644
--- a/internal/net/http/accesslog/filter.go
+++ b/internal/net/http/accesslog/filter.go
@@ -22,6 +22,7 @@ type (
 	HTTPHeader struct {
 		Key, Value string
 	}
+	Host string
 	CIDR struct{ types.CIDR }
 )
 
@@ -79,6 +80,10 @@ func (k *HTTPHeader) Fulfill(req *http.Request, res *http.Response) bool {
 	return false
 }
 
+func (h Host) Fulfill(req *http.Request, res *http.Response) bool {
+	return req.Host == string(h)
+}
+
 func (cidr CIDR) Fulfill(req *http.Request, res *http.Response) bool {
 	ip, _, err := net.SplitHostPort(req.RemoteAddr)
 	if err != nil {