added SetXtermHtml and GetXtermHtml to enable the caller to customize the ssh page

server-proxy.go

@@ -29,7 +29,7 @@ var xterm_addon_fit_js []byte
 //go:embed xterm.css
 var xterm_css []byte
 //go:embed xterm.html
-var xterm_html []byte
+var xterm_html string
 
 type server_proxy struct {
 	s *Server
@@ -547,7 +547,11 @@ func (pxy *server_proxy_xterm_file) ServeHTTP(w http.ResponseWriter, req *http.R
 			}
 
 			tmpl = template.New("")
-			_, err = tmpl.Parse(string(xterm_html))
+			if s.xterm_html !=  "" {
+				_, err = tmpl.Parse(s.xterm_html)
+			} else {
+				_, err = tmpl.Parse(xterm_html)
+			}
 			if err != nil {
 				status_code = http.StatusInternalServerError; w.WriteHeader(status_code)
 				goto oops

server.go

@@ -59,7 +59,6 @@ type Server struct {
 	wpx_addr        []string
 	wpx_mux         *http.ServeMux
 	wpx             []*http.Server // proxy server than handles http/https only
-	wpx_resp_tf     ServerWpxResponseTransformer
 
 	ctl_addr        []string
 	ctl_prefix      string
@@ -90,6 +89,9 @@ type Server struct {
 		ssh_proxy_sessions atomic.Int64
 	}
 
+	wpx_resp_tf     ServerWpxResponseTransformer
+	xterm_html      string
+
 	UnimplementedHoduServer
 }
 
@@ -1123,6 +1125,14 @@ func (s *Server) GetWpxResponseTransformer() ServerWpxResponseTransformer {
 	return s.wpx_resp_tf
 }
 
+func (s *Server) SetXtermHtml(html string) {
+	s.xterm_html = html
+}
+
+func (s *Server) GetXtermHtml() string {
+	return s.xterm_html
+}
+
 func (s *Server) run_grpc_server(idx int, wg *sync.WaitGroup) error {
 	var l *net.TCPListener
 	var err error