implemented the pts feature in the server side as well

Makefile

@@ -25,6 +25,7 @@ SRCS=\
 	server-ctl.go \
 	server-metrics.go \
 	server-peer.go \
+	server-pts.go \
 	server-pxy.go \
 	system.go \
 	transform.go \

client-metrics.go

@@ -60,6 +60,7 @@ func (c ClientCollector) Describe(ch chan<- *prometheus.Desc) {
 	ch <- c.ClientConns
 	ch <- c.ClientRoutes
 	ch <- c.ClientPeers
+	ch <- c.PtsSessions
 }
 
 func (c ClientCollector) Collect(ch chan<- prometheus.Metric) {

client-pts.go

@@ -28,13 +28,6 @@ type client_pts_xterm_file struct {
 	file string
 }
 
-/*
-type json_ssh_ws_event struct {
-	Type string `json:"type"`
-	Data []string `json:"data"`
-}
-*/
-
 // ------------------------------------------------------
 
 func (pts *client_pts_ws) Identity() string {
@@ -45,7 +38,7 @@ func (pts *client_pts_ws) send_ws_data(ws *websocket.Conn, type_val string, data
 	var msg []byte
 	var err error
 
-	msg, err = json.Marshal(json_ssh_ws_event{Type: type_val, Data: []string{ data } })
+	msg, err = json.Marshal(json_xterm_ws_event{Type: type_val, Data: []string{ data } })
 	if err == nil { err = websocket.Message.Send(ws, msg) }
 	return err
 }
@@ -186,7 +179,7 @@ ws_recv_loop:
 		if err != nil { goto done }
 
 		if len(msg) > 0 {
-			var ev json_ssh_ws_event
+			var ev json_xterm_ws_event
 			err = json.Unmarshal(msg, &ev)
 			if err == nil {
 				switch ev.Type {

cmd/config.go

@@ -94,6 +94,8 @@ type ServerAppConfig  struct {
 	LogRotate     int       `yaml:"log-rotate"`
 	MaxPeers      int       `yaml:"max-peer-conns"` // maximum number of connections from peers
 	MaxRpcConns   int       `yaml:"max-rpc-conns"` // maximum number of rpc connections
+	PtsUser       string    `yaml:"pts-user"`
+	PtsShell      string    `yaml:"pts-shell"`
 	XtermHtmlFile string    `yaml:"xterm-html-file"`
 }
 

cmd/main.go

@@ -97,6 +97,8 @@ func server_main(ctl_addrs []string, rpc_addrs []string, pxy_addrs []string, wpx
 	var logmask hodu.LogMask
 	var logfile_maxsize int64
 	var logfile_rotate int
+	var pts_user string
+	var pts_shell string
 	var xterm_html_file string
 	var xterm_html string
 	var err error
@@ -132,6 +134,9 @@ func server_main(ctl_addrs []string, rpc_addrs []string, pxy_addrs []string, wpx
 		config.CtlPrefix = cfg.CTL.Service.Prefix
 		config.RpcMaxConns = cfg.APP.MaxRpcConns
 		config.MaxPeers = cfg.APP.MaxPeers
+
+		pts_user = cfg.APP.PtsUser
+		pts_shell = cfg.APP.PtsShell
 		xterm_html_file = cfg.APP.XtermHtmlFile
 
 		logmask = log_strings_to_mask(cfg.APP.LogMask)
@@ -167,6 +172,8 @@ func server_main(ctl_addrs []string, rpc_addrs []string, pxy_addrs []string, wpx
 		return fmt.Errorf("failed to create server - %s", err.Error())
 	}
 
+	if pts_user != "" { s.SetPtsUser(pts_user) }
+	if pts_shell != "" { s.SetPtsShell(pts_shell) }
 	if xterm_html != "" { s.SetXtermHtml(xterm_html) }
 
 	s.StartService(nil)

hodu.go

@@ -118,6 +118,11 @@ type json_out_go_stats struct {
 }
 
 
+type json_xterm_ws_event struct {
+	Type string `json:"type"`
+	Data []string `json:"data"`
+}
+
 // ---------------------------------------------------------
 
 //go:embed xterm.js

server-ctl.go

@@ -76,6 +76,7 @@ type json_out_server_stats struct {
 	ServerPeers int64 `json:"server-peers"`
 
 	SshProxySessions int64 `json:"pxy-ssh-sessions"`
+     ServerPtsSessions int64 `json:"server-pts-sessions"`
 }
 
 // this is a more specialized variant of json_in_notice
@@ -911,6 +912,7 @@ func (ctl *server_ctl_stats) ServeHTTP(w http.ResponseWriter, req *http.Request)
 			stats.ServerRoutes = s.stats.routes.Load()
 			stats.ServerPeers = s.stats.peers.Load()
 			stats.SshProxySessions = s.stats.ssh_proxy_sessions.Load()
+			stats.ServerPtsSessions = s.stats.pts_sessions.Load()
 			status_code = WriteJsonRespHeader(w, http.StatusOK)
 			if err = je.Encode(stats); err != nil { goto oops }
 

server-metrics.go

@@ -11,6 +11,7 @@ type ServerCollector struct {
 	ServerRoutes     *prometheus.Desc
 	ServerPeers      *prometheus.Desc
 	SshProxySessions *prometheus.Desc
+	PtsSessions      *prometheus.Desc
 }
 
 // NewServerCollector returns a new ServerCollector with all prometheus.Desc initialized
@@ -52,6 +53,11 @@ func NewServerCollector(server *Server) ServerCollector {
 			"Number of SSH proxy sessions",
 			nil, nil,
 		),
+		PtsSessions: prometheus.NewDesc(
+			prefix + "pts_sessions",
+			"Number of pts session",
+			nil, nil,
+		),
 	}
 }
 
@@ -61,6 +67,7 @@ func (c ServerCollector) Describe(ch chan<- *prometheus.Desc) {
 	ch <- c.ServerRoutes
 	ch <- c.ServerPeers
 	ch <- c.SshProxySessions
+	ch <- c.PtsSessions
 }
 
 func (c ServerCollector) Collect(ch chan<- prometheus.Metric) {
@@ -97,4 +104,10 @@ func (c ServerCollector) Collect(ch chan<- prometheus.Metric) {
 		prometheus.GaugeValue,
 		float64(c.server.stats.ssh_proxy_sessions.Load()),
 	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.PtsSessions,
+		prometheus.GaugeValue,
+		float64(c.server.stats.pts_sessions.Load()),
+	)
 }

server-pxy.go

@@ -550,11 +550,6 @@ type server_pxy_ssh_ws struct {
 	Id string
 }
 
-type json_ssh_ws_event struct {
-	Type string `json:"type"`
-	Data []string `json:"data"`
-}
-
 func (pxy *server_pxy_ssh_ws) Identity() string {
 	return pxy.Id
 }
@@ -566,7 +561,7 @@ func (pxy *server_pxy_ssh_ws) send_ws_data(ws *websocket.Conn, type_val string,
 	var msg []byte
 	var err error
 
-	msg, err = json.Marshal(json_ssh_ws_event{Type: type_val, Data: []string{ data } })
+	msg, err = json.Marshal(json_xterm_ws_event{Type: type_val, Data: []string{ data } })
 	if err == nil { err = websocket.Message.Send(ws, msg) }
 	return err
 }
@@ -723,7 +718,7 @@ ws_recv_loop:
 		if err != nil { goto done }
 
 		if len(msg) > 0 {
-			var ev json_ssh_ws_event
+			var ev json_xterm_ws_event
 			err = json.Unmarshal(msg, &ev)
 			if err == nil {
 				switch ev.Type {

server.go

@@ -154,11 +154,16 @@ type Server struct {
 		routes atomic.Int64
 		peers atomic.Int64
 		ssh_proxy_sessions atomic.Int64
+		pts_sessions atomic.Int64
 	}
 
 	wpx_resp_tf     ServerWpxResponseTransformer
 	wpx_foreign_port_proxy_maker ServerWpxForeignPortProxyMaker
-	xterm_html      string
+
+
+	pts_user   string
+	pts_shell  string
+	xterm_html string
 }
 
 // connection from client.
@@ -1376,6 +1381,27 @@ func NewServer(ctx context.Context, name string, logger Logger, cfg *ServerConfi
 	s.ctl_mux.Handle("/_ctl/events",
 		s.SafeWrapWebsocketHandler(s.WrapWebsocketHandler(&server_ctl_ws{ServerCtl{S: &s, Id: HS_ID_CTL}})))
 
+	s.ctl_mux.Handle("/_pts/ws",
+		s.SafeWrapWebsocketHandler(s.WrapWebsocketHandler(&server_pts_ws{S: &s, Id: HS_ID_CTL})))
+
+	s.ctl_mux.Handle("/_pts/xterm.js",
+		s.WrapHttpHandler(&server_pts_xterm_file{ServerCtl: ServerCtl{S: &s, Id: HS_ID_CTL}, file: "xterm.js"}))
+	s.ctl_mux.Handle("/_pts/xterm.js.map",
+		s.WrapHttpHandler(&server_pts_xterm_file{ServerCtl: ServerCtl{S: &s, Id: HS_ID_CTL}, file: "_notfound"}))
+	s.ctl_mux.Handle("/_pts/xterm-addon-fit.js",
+		s.WrapHttpHandler(&server_pts_xterm_file{ServerCtl: ServerCtl{S: &s, Id: HS_ID_CTL}, file: "xterm-addon-fit.js"}))
+	s.ctl_mux.Handle("/_pts/xterm-addon-fit.js.map",
+		s.WrapHttpHandler(&server_pts_xterm_file{ServerCtl: ServerCtl{S: &s, Id: HS_ID_CTL}, file: "_notfound"}))
+	s.ctl_mux.Handle("/_pts/xterm.css",
+		s.WrapHttpHandler(&server_pts_xterm_file{ServerCtl: ServerCtl{S: &s, Id: HS_ID_CTL}, file: "xterm.css"}))
+	s.ctl_mux.Handle("/_pts/xterm.html",
+		s.WrapHttpHandler(&server_pts_xterm_file{ServerCtl: ServerCtl{S: &s, Id: HS_ID_CTL}, file: "xterm.html"}))
+	s.ctl_mux.Handle("/_pts/",
+		s.WrapHttpHandler(&server_pts_xterm_file{ServerCtl: ServerCtl{S: &s, Id: HS_ID_CTL}, file: "_forbidden"}))
+	s.ctl_mux.Handle("/_pts/favicon.ico",
+		s.WrapHttpHandler(&server_pts_xterm_file{ServerCtl: ServerCtl{S: &s, Id: HS_ID_CTL}, file: "_forbidden"}))
+	s.ctl_mux.Handle("/_pts/favicon.ico/",
+		s.WrapHttpHandler(&server_pts_xterm_file{ServerCtl: ServerCtl{S: &s, Id: HS_ID_CTL}, file: "_forbidden"}))
 	/*
 	// this part is duplcate of pxy_mux.
 	s.ctl_mux.Handle("/_ssh/ws/{conn_id}/{route_id}",
@@ -1503,6 +1529,7 @@ func NewServer(ctx context.Context, name string, logger Logger, cfg *ServerConfi
 	s.stats.routes.Store(0)
 	s.stats.peers.Store(0)
 	s.stats.ssh_proxy_sessions.Store(0)
+	s.stats.pts_sessions.Store(0)
 
 	return &s, nil
 
@@ -1538,6 +1565,22 @@ func (s *Server) GetXtermHtml() string {
 	return s.xterm_html
 }
 
+func (s *Server) SetPtsUser(user string) {
+	s.pts_user = user
+}
+
+func (s *Server) GetPtsUser() string {
+	return s.pts_user
+}
+
+func (s *Server) SetPtsShell(user string) {
+	s.pts_shell = user
+}
+
+func (s *Server) GetPtsShell() string {
+	return s.pts_shell
+}
+
 func (s *Server) run_grpc_server(idx int, wg *sync.WaitGroup) error {
 	var l *net.TCPListener
 	var err error