------------------------------------------------------------
revno: 32
committer: Olivier Duchateau <duchateau.olivier@gmail.com>
branch nick: xfpanel-switch
timestamp: Fri 2015-09-11 18:43:46 +0200
message:
  Check if user can delete backup, if not display a Gtk.MessageDialog widget.
diff:
=== modified file 'xfpanel-switch/xfpanel-switch.py'
--- xfpanel-switch/xfpanel-switch.py	2015-09-11 14:00:18 +0000
+++ xfpanel-switch/xfpanel-switch.py	2015-09-11 16:43:46 +0000
@@ -25,6 +25,8 @@
 import shlex
 import os
 import datetime
+import pwd
+import stat
 from gi.repository import Gtk, GLib, Gio
 
 from panelconfig import PanelConfig
@@ -221,7 +223,7 @@
         dialog.destroy()
 
     def load_configuration(self, filename):
-        if os.path.isfile(filename):
+        if os.path.exists(filename):
             PanelConfig.from_file(filename).to_xfconf(self.xfconf)
 
     def on_apply_clicked(self, widget):
@@ -229,16 +231,43 @@
         self.load_configuration(filename)
 
     def delete_configuration(self, filename):
-        if os.path.isfile(filename):
-            os.remove(filename)
+        # Get name of current user
+        current_user = GLib.get_user_name()
+ 
+        if os.path.exists(filename):
+            fp = open(filename, "rb")
+            # File descriptor (required by os.fstat function)
+            fd = fp.fileno()
+ 
+            status = os.fstat(fd)
+            user_name = pwd.getpwuid(status[stat.ST_UID])
+            fp.close()
+
+            if current_user == user_name[0]:
+                os.remove(filename)
+                return True
+            else:
+                return False
+
+    def _error_dialog(self, filename):
+        dialog = Gtk.MessageDialog(self.window, 0,
+                                   Gtk.MessageType.ERROR,
+                                   Gtk.ButtonsType.CANCEL,
+                                   _("Error"))
+        dialog.format_secondary_text(_("You are not the owner of %s" % os.path.basename(filename)))
+        dialog.run()
+        dialog.destroy()
 
     def on_delete_clicked(self, widget):
         model, treeiter, values = self.get_selected()
         filename = values[0]
         if filename == "":
             return
-        self.delete_configuration(filename)
-        model.remove(treeiter)
+        success = self.delete_configuration(filename)
+        if success:
+            model.remove(treeiter)
+        else:
+            self._error_dialog(filename)
 
     def on_window_destroy(self, *args):
         '''Exit the application when the window is closed.'''