keyfile settings: Use tighter permissions

When creating directories, create them with 700 permissions,
instead of 777.

Closes: #1658

gio/gkeyfilesettingsbackend.c

@@ -113,7 +113,8 @@ g_keyfile_settings_backend_keyfile_write (GKeyfileSettingsBackend *kfsb)
 
   contents = g_key_file_to_data (kfsb->keyfile, &length, NULL);
   g_file_replace_contents (kfsb->file, contents, length, NULL, FALSE,
-                           G_FILE_CREATE_REPLACE_DESTINATION,
+                           G_FILE_CREATE_REPLACE_DESTINATION |
+                           G_FILE_CREATE_PRIVATE,
                            NULL, NULL, NULL);
 
   compute_checksum (kfsb->digest, contents, length);
@@ -708,7 +709,7 @@ g_keyfile_settings_backend_constructed (GObject *object)
   kfsb->permission = g_simple_permission_new (TRUE);
 
   kfsb->dir = g_file_get_parent (kfsb->file);
-  g_file_make_directory_with_parents (kfsb->dir, NULL, NULL);
+  g_mkdir_with_parents (g_file_peek_path (kfsb->dir), 0700);
 
   kfsb->file_monitor = g_file_monitor (kfsb->file, G_FILE_MONITOR_NONE, NULL, NULL);
   kfsb->dir_monitor = g_file_monitor (kfsb->dir, G_FILE_MONITOR_NONE, NULL, NULL);