- Patch #629902 by andypost, JohnAlbin, David_Rothstein: critical bug: theme_get_setting() should return NULL for features that are disabled in a theme.

includes/theme.inc

@@ -1152,18 +1152,12 @@ function theme_get_setting($setting_name, $theme = NULL) {
       'favicon_path'                     =>  '',
       // Use the IANA-registered MIME type for ICO files as default.
       'favicon_mimetype'                 =>  'image/vnd.microsoft.icon',
-      'main_menu'                        =>  1,
-      'secondary_menu'                   =>  1,
-      'toggle_logo'                      =>  1,
-      'toggle_favicon'                   =>  1,
-      'toggle_name'                      =>  1,
-      'toggle_slogan'                    =>  1,
-      'toggle_node_user_picture'         =>  1,
-      'toggle_comment_user_picture'      =>  1,
-      'toggle_comment_user_verification' =>  1,
-      'toggle_main_menu'                 =>  1,
-      'toggle_secondary_menu'            =>  1,
     );
+    // Turn on all default features.
+    $features = _system_default_theme_features();
+    foreach ($features as $feature) {
+      $cache[$theme]['toggle_' . $feature] = 1;
+    }
 
     // Get the values for the theme-specific settings from the .info files of
     // the theme and all its base themes.
@@ -1193,6 +1187,16 @@ function theme_get_setting($setting_name, $theme = NULL) {
       // Get the saved theme-specific settings from the database.
       $cache[$theme] = array_merge($cache[$theme], variable_get('theme_' . $theme . '_settings', array()));
 
+      // If the theme does not support a particular feature, override the global
+      // setting and set the value to NULL.
+      if (!empty($theme_object->info['features'])) {
+        foreach ($features as $feature) {
+          if (!in_array($feature, $theme_object->info['features'])) {
+            $cache[$theme]['toggle_' . $feature] = NULL;
+          }
+        }
+      }
+
       // Generate the path to the logo image.
       if ($cache[$theme]['toggle_logo']) {
         if ($cache[$theme]['default_logo']) {

modules/system/system.module

@@ -2316,17 +2316,7 @@ function _system_rebuild_theme_data() {
         'page_bottom' => 'Page bottom',
       ),
       'description' => '',
-      'features' => array(
-        'comment_user_picture',
-        'comment_user_verification',
-        'favicon',
-        'logo',
-        'name',
-        'node_user_picture',
-        'slogan',
-        'main_menu',
-        'secondary_menu',
-      ),
+      'features' => _system_default_theme_features(),
       'screenshot' => 'screenshot.png',
       'php' => DRUPAL_MINIMUM_PHP,
     );
@@ -2432,6 +2422,23 @@ function system_rebuild_theme_data() {
   return $themes;
 }
 
+/**
+ * Returns an array of default theme features.
+ */
+function _system_default_theme_features() {
+  return array(
+    'logo',
+    'favicon',
+    'name',
+    'slogan',
+    'node_user_picture',
+    'comment_user_picture',
+    'comment_user_verification',
+    'main_menu',
+    'secondary_menu',
+  );
+}
+
 /**
  * Find all the base themes for the specified theme.
  *