Ticket #18876: 18876.short-cache.patch

wp-includes/update.php

@@ -33 +33 @@
                 $current->updates = array();
                 $current->version_checked = $wp_version;
         }
+        
+        // Wait 60 seconds between multiple version check requests
+        $timeout = 60;
+        $time_not_changed = isset( $current->last_checked ) && $timeout > ( time() - $current->last_checked );
+        if ( $time_not_changed )
+                return false;
 
         $locale = apply_filters( 'core_version_check_locale', get_locale() );
 
@@ -143 +149 @@
 
         $new_option = new stdClass;
         $new_option->last_checked = time();
-        // Check for updated every 60 minutes if hitting update pages; else, check every 12 hours.
-        $timeout = in_array( current_filter(), array( 'load-plugins.php', 'load-update.php', 'load-update-core.php' ) ) ? 3600 : 43200;
-        $time_not_changed = isset( $current->last_checked ) && $timeout > ( time() - $current->last_checked );
-
-        $plugin_changed = false;
-        foreach ( $plugins as $file => $p ) {
-                $new_option->checked[ $file ] = $p['Version'];
 
-                if ( !isset( $current->checked[ $file ] ) || strval($current->checked[ $file ]) !== strval($p['Version']) )
-                        $plugin_changed = true;
+        // Check for update on a different schedule, depending on the page.
+        switch ( current_filter() ) {
+                case 'load-update-core.php' :
+                        $timeout = 60; // 1 min
+                        break;
+                case 'load-plugins.php' :
+                case 'load-update.php' :
+                        $timeout = 3600; // 1 hour
+                        break;
+                default :
+                        $timeout = 43200; // 12 hours
         }
+        
+        $time_not_changed = isset( $current->last_checked ) && $timeout > ( time() - $current->last_checked );
 
-        if ( isset ( $current->response ) && is_array( $current->response ) ) {
-                foreach ( $current->response as $plugin_file => $update_details ) {
-                        if ( ! isset($plugins[ $plugin_file ]) ) {
+        if ( $time_not_changed ) {
+                $plugin_changed = false;
+                foreach ( $plugins as $file => $p ) {
+                        $new_option->checked[ $file ] = $p['Version'];
+
+                        if ( !isset( $current->checked[ $file ] ) || strval($current->checked[ $file ]) !== strval($p['Version']) )
                                 $plugin_changed = true;
-                                break;
+                }
+
+                if ( isset ( $current->response ) && is_array( $current->response ) ) {
+                        foreach ( $current->response as $plugin_file => $update_details ) {
+                                if ( ! isset($plugins[ $plugin_file ]) ) {
+                                        $plugin_changed = true;
+                                        break;
+                                }
                         }
                 }
-        }
 
-        // Bail if we've checked in the last 12 hours and if nothing has changed
-        if ( $time_not_changed && !$plugin_changed )
-                return false;
+                // Bail if we've checked recently and if nothing has changed
+                if ( ! $plugin_changed )
+                        return false;
+        }
 
         // Update last_checked for current to prevent multiple blocking requests if request hangs
         $current->last_checked = time();
@@ -222 +242 @@
         if ( ! is_object($last_update) )
                 $last_update = new stdClass;
 
-        // Check for updated every 60 minutes if hitting update pages; else, check every 12 hours.
-        $timeout = in_array( current_filter(), array( 'load-themes.php', 'load-update.php', 'load-update-core.php' ) ) ? 3600 : 43200;
-        $time_not_changed = isset( $last_update->last_checked ) && $timeout > ( time( ) - $last_update->last_checked );
-
         $themes = array();
         $checked = array();
         $exclude_fields = array('Template Files', 'Stylesheet Files', 'Status', 'Theme Root', 'Theme Root URI', 'Template Dir', 'Stylesheet Dir', 'Description', 'Tags', 'Screenshot');
@@ -246 +262 @@
                 }
         }
 
-        $theme_changed = false;
-        foreach ( $checked as $slug => $v ) {
-                $update_request->checked[ $slug ] = $v;
-
-                if ( !isset( $last_update->checked[ $slug ] ) || strval($last_update->checked[ $slug ]) !== strval($v) )
-                        $theme_changed = true;
+        // Check for update on a different schedule, depending on the page.
+        switch ( current_filter() ) {
+                case 'load-update-core.php' :
+                        $timeout = 60; // 1 min
+                        break;
+                case 'load-plugins.php' :
+                case 'load-update.php' :
+                        $timeout = 3600; // 1 hour
+                        break;
+                default :
+                        $timeout = 43200; // 12 hours
         }
+        
+        $time_not_changed = isset( $last_update->last_checked ) && $timeout > ( time( ) - $last_update->last_checked );
+
+        if ( $time_not_changed ) {
+                $theme_changed = false;
+                foreach ( $checked as $slug => $v ) {
+                        $update_request->checked[ $slug ] = $v;
 
-        if ( isset ( $last_update->response ) && is_array( $last_update->response ) ) {
-                foreach ( $last_update->response as $slug => $update_details ) {
-                        if ( ! isset($checked[ $slug ]) ) {
+                        if ( !isset( $last_update->checked[ $slug ] ) || strval($last_update->checked[ $slug ]) !== strval($v) )
                                 $theme_changed = true;
-                                break;
+                }
+
+                if ( isset ( $last_update->response ) && is_array( $last_update->response ) ) {
+                        foreach ( $last_update->response as $slug => $update_details ) {
+                                if ( ! isset($checked[ $slug ]) ) {
+                                        $theme_changed = true;
+                                        break;
+                                }
                         }
                 }
-        }
 
-        if ( $time_not_changed && !$theme_changed )
-                return false;
+                // Bail if we've checked recently and if nothing has changed
+                if ( ! $theme_changed )
+                        return false;
+        }
 
         // Update last_checked for current to prevent multiple blocking requests if request hangs
         $last_update->last_checked = time();