Display security state when asking for password

Indicate to the user how secure the transport channel is so they
can avoid entering their password for untrusted sites.

1 files changed, 28 insertions, 3 deletions

diff --git a/vncviewer/UserDialog.cxx b/vncviewer/UserDialog.cxx
index cf6893c8..640f2a98 100644
--- a/vncviewer/UserDialog.cxx
+++ b/vncviewer/UserDialog.cxx
@@ -32,6 +32,7 @@
 #include <FL/Fl_Secret_Input.H>
 #include <FL/Fl_Button.H>
 #include <FL/Fl_Return_Button.H>
+#include <FL/Fl_Pixmap.H>
 
 #include <rfb/util.h>
 #include <rfb/Password.h>
@@ -42,8 +43,18 @@
 #include "parameters.h"
 #include "UserDialog.h"
 
+/* xpm:s predate const, so they have invalid definitions */
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wwrite-strings"
+#include "../media/secure.xpm"
+#include "../media/insecure.xpm"
+#pragma GCC diagnostic pop
+
 using namespace rfb;
 
+static Fl_Pixmap secure_icon(secure);
+static Fl_Pixmap insecure_icon(insecure);
+
 static int ret_val = 0;
 
 static void button_cb(Fl_Widget *widget, void *val) {
@@ -59,7 +70,7 @@ UserDialog::~UserDialog()
 {
 }
 
-void UserDialog::getUserPasswd(char** user, char** password)
+void UserDialog::getUserPasswd(bool secure, char** user, char** password)
 {
   CharArray passwordFileStr(passwordFile.getData());
 
@@ -83,6 +94,7 @@ void UserDialog::getUserPasswd(char** user, char** password)
   }
 
   Fl_Window *win;
+  Fl_Box *banner;
   Fl_Input *username;
   Fl_Secret_Input *passwd;
   Fl_Box *icon;
@@ -93,9 +105,22 @@ void UserDialog::getUserPasswd(char** user, char** password)
   win = new Fl_Window(410, 145, _("VNC authentication"));
   win->callback(button_cb,(void *)0);
 
-  y = 10;
+  banner = new Fl_Box(0, 0, win->w(), 20);
+  banner->align(FL_ALIGN_CENTER|FL_ALIGN_INSIDE|FL_ALIGN_IMAGE_NEXT_TO_TEXT);
+  banner->box(FL_FLAT_BOX);
+  if (secure) {
+    banner->label(_("This connection is secure"));
+    banner->color(FL_GREEN);
+    banner->image(secure_icon);
+  } else {
+    banner->label(_("This connection is not secure"));
+    banner->color(FL_RED);
+    banner->image(insecure_icon);
+  }
+
+  y = 20 + 10;
 
-  icon = new Fl_Box(10, 10, 50, 50, "?");
+  icon = new Fl_Box(10, y, 50, 50, "?");
   icon->box(FL_UP_BOX);
   icon->labelfont(FL_TIMES_BOLD);
   icon->labelsize(34);