Ticket #14179: 23318-upgrade-header.diff

wp-admin/includes/plugin.php

@@ -32 +32 @@
  * Network: Optional. Specify "Network: true" to require that a plugin is activated
  *              across all sites in an installation. This will prevent a plugin from being
  *              activated on a single site when Multisite is enabled.
+ * Upgrade: Optional. Specify "Upgrade: false" to exclude plugin from checking for updates.
  *  * / # Remove the space to close comment
  * </code>
  *
@@ -47 +48 @@
  *              'TextDomain' - Plugin's text domain for localization.
  *              'DomainPath' - Plugin's relative directory path to .mo files.
  *              'Network' - Boolean. Whether the plugin can only be activated network wide.
+ *              'Upgrade' - Boolean. Whether the plugin should be checked for updates on api.wordpress.org/plugins/update-check/
  *
  * Some users have issues with opening large files and manipulating the contents
  * for want is usually the first 1kiB or 2kiB. This function stops pulling in
@@ -81 +83 @@
                 'TextDomain' => 'Text Domain',
                 'DomainPath' => 'Domain Path',
                 'Network' => 'Network',
+                'Upgrade' => 'Upgrade',
                 // Site Wide Only is deprecated in favor of Network.
                 '_sitewide' => 'Site Wide Only',
         );
@@ -95 +98 @@
         $plugin_data['Network'] = ( 'true' == strtolower( $plugin_data['Network'] ) );
         unset( $plugin_data['_sitewide'] );
 
+        // verify and set boolean value Upgrade header
+        $plugin_data['Upgrade'] = ( empty( $plugin_data['Upgrade'] ) || 'true' == strtolower( $plugin_data['Upgrade'] ) );
+
         if ( $markup || $translate ) {
                 $plugin_data = _get_plugin_data_markup_translate( $plugin_file, $plugin_data, $markup, $translate );
         } else {

wp-includes/class-wp-theme.php

@@ -27 +27 @@
                 'Tags'        => 'Tags',
                 'TextDomain'  => 'Text Domain',
                 'DomainPath'  => 'Domain Path',
+                'Upgrade'     => 'Upgrade',
         );
 
         /**
@@ -239 +240 @@
                                 if ( basename( $this->stylesheet ) != $default_theme_slug )
                                         $this->headers['Name'] .= '/' . $this->stylesheet;
                         }
+                        // verify and set boolean value Upgrade header
+                        $this->headers['Upgrade'] = ( empty( $this->headers['Upgrade'] ) || 'true' == strtolower( $this->headers['Upgrade'] ) );
                 }
 
                 // (If template is set from cache [and there are no errors], we know it's good.)

wp-includes/update.php

@@ -223 +223 @@
                         }
         }
 
+        // filter out plugins that not allow updating
+        foreach ( $plugins as $file => $p ) {
+                if ( ! $p['Upgrade'] ) {
+                        unset( $plugins[ $file ] );
+                }
+        }
+
         $time_not_changed = isset( $current->last_checked ) && $timeout > ( time() - $current->last_checked );
 
         if ( $time_not_changed && ! $extra_stats ) {
@@ -355 +362 @@
         $request['active'] = get_option( 'stylesheet' );
 
         foreach ( $installed_themes as $theme ) {
+                // omit themes that not allow updating
+                if ( ! $theme->get('Upgrade') ) {
+                        continue;
+                }
+
                 $checked[ $theme->get_stylesheet() ] = $theme->get('Version');
 
                 $themes[ $theme->get_stylesheet() ] = array(