go version and deps update, fixed middlewares and metrics

- fixed "API JWT secret empty" warning output format
- fixed metrics initialized when it should not
- fixed middlewares.modifyRequest Host header not working properly

internal/net/http/middleware/middleware.go

@@ -2,7 +2,6 @@ package middleware
 
 import (
 	"encoding/json"
-	"errors"
 	"net/http"
 
 	"github.com/rs/zerolog"
@@ -167,7 +166,10 @@ func patchReverseProxy(rpName string, rp *ReverseProxy, middlewares []*Middlewar
 		if rp.ModifyResponse != nil {
 			ori := rp.ModifyResponse
 			rp.ModifyResponse = func(res *http.Response) error {
-				return errors.Join(mid.modifyResponse(res), ori(res))
+				if err := mid.modifyResponse(res); err != nil {
+					return err
+				}
+				return ori(res)
 			}
 		} else {
 			rp.ModifyResponse = mid.modifyResponse

internal/net/http/middleware/modify_request.go

@@ -1,6 +1,8 @@
 package middleware
 
 import (
+	"net/http"
+
 	"github.com/yusing/go-proxy/internal/common"
 	E "github.com/yusing/go-proxy/internal/error"
 )
@@ -22,11 +24,9 @@ var ModifyRequest = &Middleware{withOptions: NewModifyRequest}
 
 func NewModifyRequest(optsRaw OptionsRaw) (*Middleware, E.Error) {
 	mr := new(modifyRequest)
-	var mrFunc RewriteFunc
+	mrFunc := mr.modifyRequest
 	if common.IsDebug {
 		mrFunc = mr.modifyRequestWithTrace
-	} else {
-		mrFunc = mr.modifyRequest
 	}
 	mr.m = &Middleware{
 		impl:   mr,
@@ -41,6 +41,9 @@ func NewModifyRequest(optsRaw OptionsRaw) (*Middleware, E.Error) {
 
 func (mr *modifyRequest) modifyRequest(req *Request) {
 	for k, v := range mr.SetHeaders {
+		if http.CanonicalHeaderKey(k) == "Host" {
+			req.Host = v
+		}
 		req.Header.Set(k, v)
 	}
 	for k, v := range mr.AddHeaders {

internal/net/http/middleware/modify_request_test.go

@@ -9,7 +9,10 @@ import (
 
 func TestSetModifyRequest(t *testing.T) {
 	opts := OptionsRaw{
-		"set_headers":  map[string]string{"User-Agent": "go-proxy/v0.5.0"},
+		"set_headers": map[string]string{
+			"User-Agent": "go-proxy/v0.5.0",
+			"Host":       "test.example.com",
+		},
 		"add_headers":  map[string]string{"Accept-Encoding": "test-value"},
 		"hide_headers": []string{"Accept"},
 	}
@@ -28,6 +31,7 @@ func TestSetModifyRequest(t *testing.T) {
 		})
 		ExpectNoError(t, err)
 		ExpectEqual(t, result.RequestHeaders.Get("User-Agent"), "go-proxy/v0.5.0")
+		ExpectEqual(t, result.RequestHeaders.Get("Host"), "test.example.com")
 		ExpectTrue(t, slices.Contains(result.RequestHeaders.Values("Accept-Encoding"), "test-value"))
 		ExpectEqual(t, result.RequestHeaders.Get("Accept"), "")
 	})

internal/net/http/middleware/x_forwarded.go

@@ -2,6 +2,7 @@ package middleware
 
 import (
 	"net"
+	"strings"
 )
 
 const (
@@ -15,10 +16,7 @@ const (
 
 var SetXForwarded = &Middleware{
 	before: Rewrite(func(req *Request) {
-		req.Header.Del("Forwarded")
-		req.Header.Del(xForwardedFor)
-		req.Header.Del(xForwardedHost)
-		req.Header.Del(xForwardedProto)
+		delXForwarded(req)
 		clientIP, _, err := net.SplitHostPort(req.RemoteAddr)
 		if err == nil {
 			req.Header.Set(xForwardedFor, clientIP)
@@ -35,10 +33,18 @@ var SetXForwarded = &Middleware{
 }
 
 var HideXForwarded = &Middleware{
-	before: Rewrite(func(req *Request) {
-		req.Header.Del("Forwarded")
-		req.Header.Del(xForwardedFor)
-		req.Header.Del(xForwardedHost)
-		req.Header.Del(xForwardedProto)
-	}),
+	before: Rewrite(delXForwarded),
+}
+
+func delXForwarded(req *Request) {
+	req.Header.Del("Forwarded")
+	toRemove := make([]string, 0)
+	for k := range req.Header {
+		if strings.HasPrefix(k, "X-Forwarded-") {
+			toRemove = append(toRemove, k)
+		}
+	}
+	for _, k := range toRemove {
+		req.Header.Del(k)
+	}
 }