ext/admin: add explanation to PermissionDenied

QubesOS · Jun 22, 2017 · 8c9ce05 · 8c9ce05
1 parent 2942f8b
commit 8c9ce05
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/qubes/ext/admin.py b/qubes/ext/admin.py
@@ -29,6 +29,8 @@ def on_tag_set_or_remove(self, vm, event, arg, **kwargs):
         '''Forbid changing specific tags'''
         # pylint: disable=no-self-use,unused-argument
         if arg.startswith('created-by-'):
-            raise qubes.api.PermissionDenied()
+            raise qubes.api.PermissionDenied(
+                'changing this tag is prohibited by {}.{}'.format(
+                    __name__, type(self).__name__))
 
-    # TODO create that extension in the first place
+    # TODO create that tag here (need to figure out how to pass mgmtvm name)