Added the function of custom prefix path for ws and wss protocols

cmd/frpc/sub/root.go

@@ -33,6 +33,7 @@ import (
 	"github.com/fatedier/frp/pkg/config/v1/validation"
 	"github.com/fatedier/frp/pkg/featuregate"
 	"github.com/fatedier/frp/pkg/util/log"
+	pkgnet "github.com/fatedier/frp/pkg/util/net"
 	"github.com/fatedier/frp/pkg/util/version"
 )
 
@@ -41,6 +42,7 @@ var (
 	cfgDir           string
 	showVersion      bool
 	strictConfigMode bool
+	prefixPath       string
 )
 
 func init() {
@@ -48,6 +50,7 @@ func init() {
 	rootCmd.PersistentFlags().StringVarP(&cfgDir, "config_dir", "", "", "config directory, run one frpc service for each file in config directory")
 	rootCmd.PersistentFlags().BoolVarP(&showVersion, "version", "v", false, "version of frpc")
 	rootCmd.PersistentFlags().BoolVarP(&strictConfigMode, "strict_config", "", true, "strict config parsing mode, unknown fields will cause an errors")
+	rootCmd.PersistentFlags().StringVarP(&prefixPath, "prefixPath", "", "", "ws/wss path of frpc")
 }
 
 var rootCmd = &cobra.Command{
@@ -149,6 +152,15 @@ func startService(
 		log.Infof("start frpc service for config file [%s]", cfgFile)
 		defer log.Infof("frpc service for config file [%s] stopped", cfgFile)
 	}
+
+	log.Infof("cfg.Transport.PrefixPath: %s", cfg.Transport.PrefixPath)
+	if cfg.Transport.PrefixPath != "" {
+		pkgnet.SetWsPrefixPath(cfg.Transport.PrefixPath)
+	}
+	if prefixPath != "" {
+		pkgnet.SetWsPrefixPath(prefixPath)
+	}
+
 	svr, err := client.NewService(client.ServiceOptions{
 		Common:         cfg,
 		ProxyCfgs:      proxyCfgs,
@@ -164,5 +176,6 @@ func startService(
 	if shouldGracefulClose {
 		go handleTermSignal(svr)
 	}
+	log.Infof("frpc Websocket PrefixPath: \"%s\"", pkgnet.GetWsPrefixPath())
 	return svr.Run(context.Background())
 }

cmd/frps/root.go

@@ -25,6 +25,7 @@ import (
 	v1 "github.com/fatedier/frp/pkg/config/v1"
 	"github.com/fatedier/frp/pkg/config/v1/validation"
 	"github.com/fatedier/frp/pkg/util/log"
+	pkgnet "github.com/fatedier/frp/pkg/util/net"
 	"github.com/fatedier/frp/pkg/util/version"
 	"github.com/fatedier/frp/server"
 )
@@ -33,6 +34,7 @@ var (
 	cfgFile          string
 	showVersion      bool
 	strictConfigMode bool
+	prefixPath       string
 
 	serverCfg v1.ServerConfig
 )
@@ -41,6 +43,7 @@ func init() {
 	rootCmd.PersistentFlags().StringVarP(&cfgFile, "config", "c", "", "config file of frps")
 	rootCmd.PersistentFlags().BoolVarP(&showVersion, "version", "v", false, "version of frps")
 	rootCmd.PersistentFlags().BoolVarP(&strictConfigMode, "strict_config", "", true, "strict config parsing mode, unknown fields will cause errors")
+	rootCmd.PersistentFlags().StringVarP(&prefixPath, "prefixPath", "", "", "ws/wss path of frps")
 
 	config.RegisterServerConfigFlags(rootCmd, &serverCfg)
 }
@@ -54,6 +57,10 @@ var rootCmd = &cobra.Command{
 			return nil
 		}
 
+		if prefixPath != "" {
+			pkgnet.SetWsPrefixPath(prefixPath)
+		}
+
 		var (
 			svrCfg         *v1.ServerConfig
 			isLegacyFormat bool
@@ -112,6 +119,7 @@ func runServer(cfg *v1.ServerConfig) (err error) {
 		return err
 	}
 	log.Infof("frps started successfully")
+	log.Infof("frps Websocket PrefixPath: \"%s\"", pkgnet.GetWsPrefixPath())
 	svr.Run(context.Background())
 	return
 }

pkg/config/v1/client.go

@@ -17,9 +17,8 @@ package v1
 import (
 	"os"
 
-	"github.com/samber/lo"
-
 	"github.com/fatedier/frp/pkg/util/util"
+	"github.com/samber/lo"
 )
 
 type ClientConfig struct {
@@ -96,6 +95,8 @@ type ClientTransportConfig struct {
 	// Valid values are "tcp", "kcp", "quic", "websocket" and "wss". By default, this value
 	// is "tcp".
 	Protocol string `json:"protocol,omitempty"`
+	//When the protocol is ws or wss, use this parameter
+	PrefixPath string `json:"prefixpath,omitempty"`
 	// The maximum amount of time a dial to server will wait for a connect to complete.
 	DialServerTimeout int64 `json:"dialServerTimeout,omitempty"`
 	// DialServerKeepAlive specifies the interval between keep-alive probes for an active network connection between frpc and frps.
@@ -135,6 +136,7 @@ type ClientTransportConfig struct {
 
 func (c *ClientTransportConfig) Complete() {
 	c.Protocol = util.EmptyOr(c.Protocol, "tcp")
+	c.PrefixPath = util.EmptyOr(c.PrefixPath, "/~!frp")
 	c.DialServerTimeout = util.EmptyOr(c.DialServerTimeout, 10)
 	c.DialServerKeepAlive = util.EmptyOr(c.DialServerKeepAlive, 7200)
 	c.ProxyURL = util.EmptyOr(c.ProxyURL, os.Getenv("http_proxy"))

pkg/util/net/websocket.go

@@ -11,9 +11,7 @@ import (
 
 var ErrWebsocketListenerClosed = errors.New("websocket listener closed")
 
-const (
-	FrpWebsocketPath = "/~!frp"
-)
+var FrpWebsocketPath = "/~!frp"
 
 type WebsocketListener struct {
 	ln       net.Listener
@@ -66,3 +64,27 @@ func (p *WebsocketListener) Close() error {
 func (p *WebsocketListener) Addr() net.Addr {
 	return p.ln.Addr()
 }
+
+func GetWsPrefixPath() string {
+	return FrpWebsocketPath
+}
+
+func SetWsPrefixPath(path string) {
+	if path != "" {
+		if HasPrefix(path, "/") {
+			FrpWebsocketPath = path
+		} else {
+			FrpWebsocketPath = "/" + path
+		}
+	} else {
+		FrpWebsocketPath = "/~!frp"
+	}
+}
+
+func HasPrefix(s, prefix string) bool {
+	return len(s) >= len(prefix) && s[0:len(prefix)] == prefix
+}
+
+func HasSuffix(s, suffix string) bool {
+	return len(s) >= len(suffix) && s[len(s)-len(suffix):] == suffix
+}