support more proxy type

.github/ISSUE_TEMPLATE

@@ -1,3 +1,5 @@
+Issue is only used for submiting bug report and documents typo. If there are same issues or answers can be found in documents, we will close it directly.
+
 Please answer these questions before submitting your issue. Thanks!
 
 1. What did you do?
@@ -13,3 +15,7 @@ If possible, provide a recipe for reproducing the error.
 
 
 4. What version of frp are you using (./frpc -v or ./frps -v)?
+
+
+
+5. Can you point out what caused this issue (optional)?

client/control.go

@@ -208,11 +208,7 @@ func (ctl *Control) reader() {
 	}()
 	defer close(ctl.closedCh)
 
-	encReader, err := crypto.NewReader(ctl.conn, []byte(config.ClientCommonCfg.PrivilegeToken))
-	if err != nil {
-		ctl.conn.Error("crypto new reader error: %v", err)
-		return
-	}
+	encReader := crypto.NewReader(ctl.conn, []byte(config.ClientCommonCfg.PrivilegeToken))
 	for {
 		if m, err := msg.ReadMsg(encReader); err != nil {
 			if err == io.EOF {

client/proxy.go

@@ -72,43 +72,7 @@ func (pxy *TcpProxy) Close() {
 
 func (pxy *TcpProxy) InWorkConn(conn net.Conn) {
 	defer conn.Close()
-	localConn, err := net.ConnectTcpServer(fmt.Sprintf("%s:%d", pxy.cfg.LocalIp, pxy.cfg.LocalPort))
-	if err != nil {
-		conn.Error("connect to local service [%s:%d] error: %v", pxy.cfg.LocalIp, pxy.cfg.LocalPort, err)
-		return
-	}
-
-	var remote io.ReadWriteCloser
-	remote = conn
-	if pxy.cfg.UseEncryption {
-		remote, err = tcp.WithEncryption(remote, []byte(config.ClientCommonCfg.PrivilegeToken))
-		if err != nil {
-			conn.Error("create encryption stream error: %v", err)
-			return
-		}
-	}
-	if pxy.cfg.UseCompression {
-		remote = tcp.WithCompression(remote)
-	}
-	conn.Debug("join connections")
-	tcp.Join(localConn, remote)
-	conn.Debug("join connections closed")
-}
-
-// UDP
-type UdpProxy struct {
-	cfg *config.UdpProxyConf
-	ctl *Control
-}
-
-func (pxy *UdpProxy) Run() {
-}
-
-func (pxy *UdpProxy) Close() {
-}
-
-func (pxy *UdpProxy) InWorkConn(conn net.Conn) {
-	defer conn.Close()
+	HandleTcpWorkConnection(&pxy.cfg.LocalSvrConf, &pxy.cfg.BaseProxyConf, conn)
 }
 
 // HTTP
@@ -125,6 +89,7 @@ func (pxy *HttpProxy) Close() {
 
 func (pxy *HttpProxy) InWorkConn(conn net.Conn) {
 	defer conn.Close()
+	HandleTcpWorkConnection(&pxy.cfg.LocalSvrConf, &pxy.cfg.BaseProxyConf, conn)
 }
 
 // HTTPS
@@ -141,4 +106,47 @@ func (pxy *HttpsProxy) Close() {
 
 func (pxy *HttpsProxy) InWorkConn(conn net.Conn) {
 	defer conn.Close()
+	HandleTcpWorkConnection(&pxy.cfg.LocalSvrConf, &pxy.cfg.BaseProxyConf, conn)
+}
+
+// UDP
+type UdpProxy struct {
+	cfg *config.UdpProxyConf
+	ctl *Control
+}
+
+func (pxy *UdpProxy) Run() {
+}
+
+func (pxy *UdpProxy) Close() {
+}
+
+func (pxy *UdpProxy) InWorkConn(conn net.Conn) {
+	defer conn.Close()
+}
+
+// Common handler for tcp work connections.
+func HandleTcpWorkConnection(localInfo *config.LocalSvrConf, baseInfo *config.BaseProxyConf, workConn net.Conn) {
+	localConn, err := net.ConnectTcpServer(fmt.Sprintf("%s:%d", localInfo.LocalIp, localInfo.LocalPort))
+	if err != nil {
+		workConn.Error("connect to local service [%s:%d] error: %v", localInfo.LocalIp, localInfo.LocalPort, err)
+		return
+	}
+
+	var remote io.ReadWriteCloser
+	remote = workConn
+	if baseInfo.UseEncryption {
+		remote, err = tcp.WithEncryption(remote, []byte(config.ClientCommonCfg.PrivilegeToken))
+		if err != nil {
+			workConn.Error("create encryption stream error: %v", err)
+			return
+		}
+	}
+	if baseInfo.UseCompression {
+		remote = tcp.WithCompression(remote)
+	}
+	workConn.Debug("join connections, localConn(l[%s] r[%s]) workConn(l[%s] r[%s])", localConn.LocalAddr().String(),
+		localConn.RemoteAddr().String(), workConn.LocalAddr().String(), workConn.RemoteAddr().String())
+	tcp.Join(localConn, remote)
+	workConn.Debug("join connections closed")
 }

models/config/proxy.go

@@ -16,6 +16,7 @@ package config
 
 import (
 	"fmt"
+	"reflect"
 	"strconv"
 	"strings"
 
@@ -25,6 +26,27 @@ import (
 	ini "github.com/vaughan0/go-ini"
 )
 
+var proxyConfTypeMap map[string]reflect.Type
+
+func init() {
+	proxyConfTypeMap = make(map[string]reflect.Type)
+	proxyConfTypeMap[consts.TcpProxy] = reflect.TypeOf(TcpProxyConf{})
+	proxyConfTypeMap[consts.UdpProxy] = reflect.TypeOf(UdpProxyConf{})
+	proxyConfTypeMap[consts.HttpProxy] = reflect.TypeOf(HttpProxyConf{})
+	proxyConfTypeMap[consts.HttpsProxy] = reflect.TypeOf(HttpsProxyConf{})
+}
+
+// NewConfByType creates a empty ProxyConf object by proxyType.
+// If proxyType isn't exist, return nil.
+func NewConfByType(proxyType string) ProxyConf {
+	v, ok := proxyConfTypeMap[proxyType]
+	if !ok {
+		return nil
+	}
+	cfg := reflect.New(v).Interface().(ProxyConf)
+	return cfg
+}
+
 type ProxyConf interface {
 	GetName() string
 	GetBaseInfo() *BaseProxyConf
@@ -38,16 +60,9 @@ func NewProxyConf(pMsg *msg.NewProxy) (cfg ProxyConf, err error) {
 	if pMsg.ProxyType == "" {
 		pMsg.ProxyType = consts.TcpProxy
 	}
-	switch pMsg.ProxyType {
-	case consts.TcpProxy:
-		cfg = &TcpProxyConf{}
-	case consts.UdpProxy:
-		cfg = &UdpProxyConf{}
-	case consts.HttpProxy:
-		cfg = &HttpProxyConf{}
-	case consts.HttpsProxy:
-		cfg = &HttpsProxyConf{}
-	default:
+
+	cfg = NewConfByType(pMsg.ProxyType)
+	if cfg == nil {
 		err = fmt.Errorf("proxy [%s] type [%s] error", pMsg.ProxyName, pMsg.ProxyType)
 		return
 	}
@@ -62,16 +77,8 @@ func NewProxyConfFromFile(name string, section ini.Section) (cfg ProxyConf, err
 		proxyType = consts.TcpProxy
 		section["type"] = consts.TcpProxy
 	}
-	switch proxyType {
-	case consts.TcpProxy:
-		cfg = &TcpProxyConf{}
-	case consts.UdpProxy:
-		cfg = &UdpProxyConf{}
-	case consts.HttpProxy:
-		cfg = &HttpProxyConf{}
-	case consts.HttpsProxy:
-		cfg = &HttpsProxyConf{}
-	default:
+	cfg = NewConfByType(proxyType)
+	if cfg == nil {
 		err = fmt.Errorf("proxy [%s] type [%s] error", name, proxyType)
 		return
 	}
@@ -223,7 +230,6 @@ func (cfg *DomainConf) check() (err error) {
 		if strings.Contains(cfg.SubDomain, ".") || strings.Contains(cfg.SubDomain, "*") {
 			return fmt.Errorf("'.' and '*' is not supported in subdomain")
 		}
-		cfg.SubDomain += "." + ServerCommonCfg.SubDomainHost
 	}
 	return nil
 }

models/msg/msg.go

@@ -37,25 +37,21 @@ func init() {
 	TypeMap = make(map[byte]reflect.Type)
 	TypeStringMap = make(map[reflect.Type]byte)
 
-	TypeMap[TypeLogin] = getTypeFn((*Login)(nil))
-	TypeMap[TypeLoginResp] = getTypeFn((*LoginResp)(nil))
-	TypeMap[TypeNewProxy] = getTypeFn((*NewProxy)(nil))
-	TypeMap[TypeNewProxyResp] = getTypeFn((*NewProxyResp)(nil))
-	TypeMap[TypeNewWorkConn] = getTypeFn((*NewWorkConn)(nil))
-	TypeMap[TypeReqWorkConn] = getTypeFn((*ReqWorkConn)(nil))
-	TypeMap[TypeStartWorkConn] = getTypeFn((*StartWorkConn)(nil))
-	TypeMap[TypePing] = getTypeFn((*Ping)(nil))
-	TypeMap[TypePong] = getTypeFn((*Pong)(nil))
+	TypeMap[TypeLogin] = reflect.TypeOf(Login{})
+	TypeMap[TypeLoginResp] = reflect.TypeOf(LoginResp{})
+	TypeMap[TypeNewProxy] = reflect.TypeOf(NewProxy{})
+	TypeMap[TypeNewProxyResp] = reflect.TypeOf(NewProxyResp{})
+	TypeMap[TypeNewWorkConn] = reflect.TypeOf(NewWorkConn{})
+	TypeMap[TypeReqWorkConn] = reflect.TypeOf(ReqWorkConn{})
+	TypeMap[TypeStartWorkConn] = reflect.TypeOf(StartWorkConn{})
+	TypeMap[TypePing] = reflect.TypeOf(Ping{})
+	TypeMap[TypePong] = reflect.TypeOf(Pong{})
 
 	for k, v := range TypeMap {
 		TypeStringMap[v] = k
 	}
 }
 
-func getTypeFn(obj interface{}) reflect.Type {
-	return reflect.TypeOf(obj).Elem()
-}
-
 // Message wraps socket packages for communicating between frpc and frps.
 type Message interface{}
 

models/msg/pack_test.go

@@ -17,6 +17,7 @@ package msg
 import (
 	"bytes"
 	"encoding/binary"
+	"reflect"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -66,7 +67,7 @@ func TestUnPack(t *testing.T) {
 	// correct
 	msg, err = UnPack(TypePong, []byte("{}"))
 	assert.NoError(err)
-	assert.Equal(getTypeFn(msg), getTypeFn((*Pong)(nil)))
+	assert.Equal(reflect.TypeOf(msg).Elem(), reflect.TypeOf(Pong{}))
 }
 
 func TestUnPackInto(t *testing.T) {

models/proto/tcp/process_test.go

@@ -19,8 +19,6 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-
-	"github.com/fatedier/frp/utils/crypto"
 )
 
 func TestJoin(t *testing.T) {
@@ -67,63 +65,3 @@ func TestJoin(t *testing.T) {
 	conn3.Close()
 	conn4.Close()
 }
-
-func TestJoinEncrypt(t *testing.T) {
-	assert := assert.New(t)
-
-	var (
-		n   int
-		err error
-	)
-	text1 := "1234567890"
-	text2 := "abcdefghij"
-	key := "authkey"
-
-	// Forward enrypted bytes.
-	pr, pw := io.Pipe()
-	pr2, pw2 := io.Pipe()
-	pr3, pw3 := io.Pipe()
-	pr4, pw4 := io.Pipe()
-	pr5, pw5 := io.Pipe()
-	pr6, pw6 := io.Pipe()
-
-	conn1 := WrapReadWriteCloser(pr, pw2)
-	conn2 := WrapReadWriteCloser(pr2, pw)
-	conn3 := WrapReadWriteCloser(pr3, pw4)
-	conn4 := WrapReadWriteCloser(pr4, pw3)
-	conn5 := WrapReadWriteCloser(pr5, pw6)
-	conn6 := WrapReadWriteCloser(pr6, pw5)
-
-	r1, err := crypto.NewReader(conn3, []byte(key))
-	assert.NoError(err)
-	w1, err := crypto.NewWriter(conn3, []byte(key))
-	assert.NoError(err)
-
-	r2, err := crypto.NewReader(conn4, []byte(key))
-	assert.NoError(err)
-	w2, err := crypto.NewWriter(conn4, []byte(key))
-	assert.NoError(err)
-
-	go Join(conn2, WrapReadWriteCloser(r1, w1))
-	go Join(WrapReadWriteCloser(r2, w2), conn5)
-
-	buf := make([]byte, 128)
-
-	conn1.Write([]byte(text1))
-	conn6.Write([]byte(text2))
-
-	n, err = conn6.Read(buf)
-	assert.NoError(err)
-	assert.Equal(text1, string(buf[:n]))
-
-	n, err = conn1.Read(buf)
-	assert.NoError(err)
-	assert.Equal(text2, string(buf[:n]))
-
-	conn1.Close()
-	conn2.Close()
-	conn3.Close()
-	conn4.Close()
-	conn5.Close()
-	conn6.Close()
-}

models/proto/tcp/tcp.go

@@ -22,32 +22,16 @@ import (
 	"github.com/fatedier/frp/utils/crypto"
 )
 
-func WithEncryption(rwc io.ReadWriteCloser, key []byte) (res io.ReadWriteCloser, err error) {
-	var (
-		r io.Reader
-		w io.Writer
-	)
-	r, err = crypto.NewReader(rwc, key)
+func WithEncryption(rwc io.ReadWriteCloser, key []byte) (io.ReadWriteCloser, error) {
+	w, err := crypto.NewWriter(rwc, key)
 	if err != nil {
-		return
+		return nil, err
 	}
-	w, err = crypto.NewWriter(rwc, key)
-	if err != nil {
-		return
-	}
-	res = WrapReadWriteCloser(r, w)
-	return
+	return WrapReadWriteCloser(crypto.NewReader(rwc, key), w), nil
 }
 
-func WithCompression(rwc io.ReadWriteCloser) (res io.ReadWriteCloser) {
-	var (
-		r io.Reader
-		w io.Writer
-	)
-	r = snappy.NewReader(rwc)
-	w = snappy.NewWriter(rwc)
-	res = WrapReadWriteCloser(r, w)
-	return
+func WithCompression(rwc io.ReadWriteCloser) io.ReadWriteCloser {
+	return WrapReadWriteCloser(snappy.NewReader(rwc), snappy.NewWriter(rwc))
 }
 
 func WrapReadWriteCloser(r io.Reader, w io.Writer) io.ReadWriteCloser {

server/control.go

@@ -212,11 +212,7 @@ func (ctl *Control) reader() {
 	defer ctl.allShutdown.Start()
 	defer ctl.readerShutdown.Done()
 
-	encReader, err := crypto.NewReader(ctl.conn, []byte(config.ServerCommonCfg.PrivilegeToken))
-	if err != nil {
-		ctl.conn.Error("crypto new reader error: %v", err)
-		return
-	}
+	encReader := crypto.NewReader(ctl.conn, []byte(config.ServerCommonCfg.PrivilegeToken))
 	for {
 		if m, err := msg.ReadMsg(encReader); err != nil {
 			if err == io.EOF {
@@ -260,7 +256,7 @@ func (ctl *Control) stoper() {
 	}
 
 	ctl.allShutdown.Done()
-	ctl.conn.Info("all shutdown success")
+	ctl.conn.Info("client exit success")
 }
 
 func (ctl *Control) manager() {

server/proxy.go

@@ -9,6 +9,7 @@ import (
 	"github.com/fatedier/frp/models/proto/tcp"
 	"github.com/fatedier/frp/utils/log"
 	"github.com/fatedier/frp/utils/net"
+	"github.com/fatedier/frp/utils/vhost"
 )
 
 type Proxy interface {
@@ -42,6 +43,27 @@ func (pxy *BaseProxy) Close() {
 	}
 }
 
+// startListenHandler start a goroutine handler for each listener.
+// p: p will just be passed to handler(Proxy, net.Conn).
+// handler: each proxy type can set different handler function to deal with connections accepted from listeners.
+func (pxy *BaseProxy) startListenHandler(p Proxy, handler func(Proxy, net.Conn)) {
+	for _, listener := range pxy.listeners {
+		go func(l net.Listener) {
+			for {
+				// block
+				// if listener is closed, err returned
+				c, err := l.Accept()
+				if err != nil {
+					pxy.Info("listener is closed")
+					return
+				}
+				pxy.Debug("get a user connection [%s]", c.RemoteAddr().String())
+				go handler(p, c)
+			}
+		}(listener)
+	}
+}
+
 func NewProxy(ctl *Control, pxyConf config.ProxyConf) (pxy Proxy, err error) {
 	basePxy := BaseProxy{
 		name:      pxyConf.GetName(),
@@ -83,25 +105,14 @@ type TcpProxy struct {
 }
 
 func (pxy *TcpProxy) Run() error {
-	listener, err := net.ListenTcp(config.ServerCommonCfg.BindAddr, int64(pxy.cfg.RemotePort))
+	listener, err := net.ListenTcp(config.ServerCommonCfg.BindAddr, pxy.cfg.RemotePort)
 	if err != nil {
 		return err
 	}
 	pxy.listeners = append(pxy.listeners, listener)
+	pxy.Info("tcp proxy listen port [%d]", pxy.cfg.RemotePort)
 
-	go func(l net.Listener) {
-		for {
-			// block
-			// if listener is closed, err returned
-			c, err := l.Accept()
-			if err != nil {
-				pxy.Info("listener is closed")
-				return
-			}
-			pxy.Debug("got one user connection [%s]", c.RemoteAddr().String())
-			go HandleUserTcpConnection(pxy, c)
-		}
-	}(listener)
+	pxy.startListenHandler(pxy, HandleUserTcpConnection)
 	return nil
 }
 
@@ -119,6 +130,43 @@ type HttpProxy struct {
 }
 
 func (pxy *HttpProxy) Run() (err error) {
+	routeConfig := &vhost.VhostRouteConfig{
+		RewriteHost: pxy.cfg.HostHeaderRewrite,
+		Username:    pxy.cfg.HttpUser,
+		Password:    pxy.cfg.HttpPwd,
+	}
+
+	locations := pxy.cfg.Locations
+	if len(locations) == 0 {
+		locations = []string{""}
+	}
+	for _, domain := range pxy.cfg.CustomDomains {
+		routeConfig.Domain = domain
+		for _, location := range locations {
+			routeConfig.Location = location
+			l, err := pxy.ctl.svr.VhostHttpMuxer.Listen(routeConfig)
+			if err != nil {
+				return err
+			}
+			pxy.Info("http proxy listen for host [%s] location [%s]", routeConfig.Domain, routeConfig.Location)
+			pxy.listeners = append(pxy.listeners, l)
+		}
+	}
+
+	if pxy.cfg.SubDomain != "" {
+		routeConfig.Domain = pxy.cfg.SubDomain + "." + config.ServerCommonCfg.SubDomainHost
+		for _, location := range locations {
+			routeConfig.Location = location
+			l, err := pxy.ctl.svr.VhostHttpMuxer.Listen(routeConfig)
+			if err != nil {
+				return err
+			}
+			pxy.Info("http proxy listen for host [%s] location [%s]", routeConfig.Domain, routeConfig.Location)
+			pxy.listeners = append(pxy.listeners, l)
+		}
+	}
+
+	pxy.startListenHandler(pxy, HandleUserTcpConnection)
 	return
 }
 
@@ -136,6 +184,29 @@ type HttpsProxy struct {
 }
 
 func (pxy *HttpsProxy) Run() (err error) {
+	routeConfig := &vhost.VhostRouteConfig{}
+
+	for _, domain := range pxy.cfg.CustomDomains {
+		routeConfig.Domain = domain
+		l, err := pxy.ctl.svr.VhostHttpsMuxer.Listen(routeConfig)
+		if err != nil {
+			return err
+		}
+		pxy.Info("https proxy listen for host [%s]", routeConfig.Domain)
+		pxy.listeners = append(pxy.listeners, l)
+	}
+
+	if pxy.cfg.SubDomain != "" {
+		routeConfig.Domain = pxy.cfg.SubDomain + "." + config.ServerCommonCfg.SubDomainHost
+		l, err := pxy.ctl.svr.VhostHttpsMuxer.Listen(routeConfig)
+		if err != nil {
+			return err
+		}
+		pxy.Info("https proxy listen for host [%s]", routeConfig.Domain)
+		pxy.listeners = append(pxy.listeners, l)
+	}
+
+	pxy.startListenHandler(pxy, HandleUserTcpConnection)
 	return
 }
 
@@ -180,7 +251,7 @@ func HandleUserTcpConnection(pxy Proxy, userConn net.Conn) {
 			return
 		}
 		defer workConn.Close()
-		pxy.Info("get one new work connection: %s", workConn.RemoteAddr().String())
+		pxy.Info("get a new work connection: [%s]", workConn.RemoteAddr().String())
 		workConn.AddLogPrefix(pxy.GetName())
 
 		err := msg.WriteMsg(workConn, &msg.StartWorkConn{
@@ -199,12 +270,7 @@ func HandleUserTcpConnection(pxy Proxy, userConn net.Conn) {
 		return
 	}
 
-	var (
-		local  io.ReadWriteCloser
-		remote io.ReadWriteCloser
-	)
-	local = workConn
-	remote = userConn
+	var local io.ReadWriteCloser = workConn
 	cfg := pxy.GetConf().GetBaseInfo()
 	if cfg.UseEncryption {
 		local, err = tcp.WithEncryption(local, []byte(config.ServerCommonCfg.PrivilegeToken))
@@ -216,5 +282,8 @@ func HandleUserTcpConnection(pxy Proxy, userConn net.Conn) {
 	if cfg.UseCompression {
 		local = tcp.WithCompression(local)
 	}
-	tcp.Join(local, remote)
+	pxy.Debug("join connections, workConn(l[%s] r[%s]) userConn(l[%s] r[%s])", workConn.LocalAddr().String(),
+		workConn.RemoteAddr().String(), userConn.LocalAddr().String(), userConn.RemoteAddr().String())
+	tcp.Join(local, userConn)
+	pxy.Debug("join connections closed")
 }

utils/crypto/crypto_test.go

@@ -22,15 +22,6 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
-func TestWriter(t *testing.T) {
-	// Empty key.
-	assert := assert.New(t)
-	key := ""
-	buffer := bytes.NewBuffer(nil)
-	_, err := NewWriter(buffer, []byte(key))
-	assert.NoError(err)
-}
-
 func TestCrypto(t *testing.T) {
 	assert := assert.New(t)
 
@@ -40,12 +31,10 @@ func TestCrypto(t *testing.T) {
 	buffer := bytes.NewBuffer(nil)
 	encWriter, err := NewWriter(buffer, []byte(key))
 	assert.NoError(err)
+	decReader := NewReader(buffer, []byte(key))
 
 	encWriter.Write([]byte(text))
 
-	decReader, err := NewReader(buffer, []byte(key))
-	assert.NoError(err)
-
 	c := bytes.NewBuffer(nil)
 	io.Copy(c, decReader)
 	assert.Equal(text, string(c.Bytes()))

utils/crypto/decode.go

@@ -24,13 +24,13 @@ import (
 )
 
 // NewReader returns a new Reader that decrypts bytes from r
-func NewReader(r io.Reader, key []byte) (*Reader, error) {
+func NewReader(r io.Reader, key []byte) *Reader {
 	key = pbkdf2.Key(key, []byte(salt), 64, aes.BlockSize, sha1.New)
 
 	return &Reader{
 		r:   r,
 		key: key,
-	}, nil
+	}
 }
 
 // Reader is an io.Reader that can read encrypted bytes.

utils/crypto/encode.go

@@ -67,10 +67,6 @@ type Writer struct {
 
 // Write satisfies the io.Writer interface.
 func (w *Writer) Write(p []byte) (nRet int, errRet error) {
-	return w.write(p)
-}
-
-func (w *Writer) write(p []byte) (nRet int, errRet error) {
 	if w.err != nil {
 		return 0, w.err
 	}

utils/vhost/vhost.go

@@ -50,26 +50,35 @@ func NewVhostMuxer(listener frpNet.Listener, vhostFunc muxFunc, authFunc httpAut
 	return mux, nil
 }
 
-// listen for a new domain name, if rewriteHost is not empty  and rewriteFunc is not nil, then rewrite the host header to rewriteHost
-func (v *VhostMuxer) Listen(name, location, rewriteHost, userName, passWord string) (l *Listener, err error) {
+type VhostRouteConfig struct {
+	Domain      string
+	Location    string
+	RewriteHost string
+	Username    string
+	Password    string
+}
+
+// listen for a new domain name, if rewriteHost is not empty  and rewriteFunc is not nil
+// then rewrite the host header to rewriteHost
+func (v *VhostMuxer) Listen(cfg *VhostRouteConfig) (l *Listener, err error) {
 	v.mutex.Lock()
 	defer v.mutex.Unlock()
 
-	_, ok := v.registryRouter.Exist(name, location)
+	_, ok := v.registryRouter.Exist(cfg.Domain, cfg.Location)
 	if ok {
-		return nil, fmt.Errorf("hostname [%s] location [%s] is already registered", name, location)
+		return nil, fmt.Errorf("hostname [%s] location [%s] is already registered", cfg.Domain, cfg.Location)
 	}
 
 	l = &Listener{
-		name:        name,
-		location:    location,
-		rewriteHost: rewriteHost,
-		userName:    userName,
-		passWord:    passWord,
+		name:        cfg.Domain,
+		location:    cfg.Location,
+		rewriteHost: cfg.RewriteHost,
+		userName:    cfg.Username,
+		passWord:    cfg.Password,
 		mux:         v,
 		accept:      make(chan frpNet.Conn),
 	}
-	v.registryRouter.Add(name, location, l)
+	v.registryRouter.Add(cfg.Domain, cfg.Location, l)
 	return l, nil
 }