--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-admin/includes/class-wp-upgrader.php Wed Nov 06 03:21:17 2013 +0000
@@ -0,0 +1,2401 @@
+<?php
+/**
+ * A File upgrader class for WordPress.
+ *
+ * This set of classes are designed to be used to upgrade/install a local set of files on the filesystem via the Filesystem Abstraction classes.
+ *
+ * @link http://trac.wordpress.org/ticket/7875 consolidate plugin/theme/core upgrade/install functions
+ *
+ * @package WordPress
+ * @subpackage Upgrader
+ * @since 2.8.0
+ */
+
+require ABSPATH . 'wp-admin/includes/class-wp-upgrader-skins.php';
+
+/**
+ * WordPress Upgrader class for Upgrading/Installing a local set of files via the Filesystem Abstraction classes from a Zip file.
+ *
+ * @package WordPress
+ * @subpackage Upgrader
+ * @since 2.8.0
+ */
+class WP_Upgrader {
+ var $strings = array();
+ var $skin = null;
+ var $result = array();
+
+ function __construct($skin = null) {
+ if ( null == $skin )
+ $this->skin = new WP_Upgrader_Skin();
+ else
+ $this->skin = $skin;
+ }
+
+ function init() {
+ $this->skin->set_upgrader($this);
+ $this->generic_strings();
+ }
+
+ function generic_strings() {
+ $this->strings['bad_request'] = __('Invalid Data provided.');
+ $this->strings['fs_unavailable'] = __('Could not access filesystem.');
+ $this->strings['fs_error'] = __('Filesystem error.');
+ $this->strings['fs_no_root_dir'] = __('Unable to locate WordPress Root directory.');
+ $this->strings['fs_no_content_dir'] = __('Unable to locate WordPress Content directory (wp-content).');
+ $this->strings['fs_no_plugins_dir'] = __('Unable to locate WordPress Plugin directory.');
+ $this->strings['fs_no_themes_dir'] = __('Unable to locate WordPress Theme directory.');
+ /* translators: %s: directory name */
+ $this->strings['fs_no_folder'] = __('Unable to locate needed folder (%s).');
+
+ $this->strings['download_failed'] = __('Download failed.');
+ $this->strings['installing_package'] = __('Installing the latest version…');
+ $this->strings['no_files'] = __('The package contains no files.');
+ $this->strings['folder_exists'] = __('Destination folder already exists.');
+ $this->strings['mkdir_failed'] = __('Could not create directory.');
+ $this->strings['incompatible_archive'] = __('The package could not be installed.');
+
+ $this->strings['maintenance_start'] = __('Enabling Maintenance mode…');
+ $this->strings['maintenance_end'] = __('Disabling Maintenance mode…');
+ }
+
+ function fs_connect( $directories = array() ) {
+ global $wp_filesystem;
+
+ if ( false === ($credentials = $this->skin->request_filesystem_credentials()) )
+ return false;
+
+ if ( ! WP_Filesystem($credentials) ) {
+ $error = true;
+ if ( is_object($wp_filesystem) && $wp_filesystem->errors->get_error_code() )
+ $error = $wp_filesystem->errors;
+ $this->skin->request_filesystem_credentials($error); //Failed to connect, Error and request again
+ return false;
+ }
+
+ if ( ! is_object($wp_filesystem) )
+ return new WP_Error('fs_unavailable', $this->strings['fs_unavailable'] );
+
+ if ( is_wp_error($wp_filesystem->errors) && $wp_filesystem->errors->get_error_code() )
+ return new WP_Error('fs_error', $this->strings['fs_error'], $wp_filesystem->errors);
+
+ foreach ( (array)$directories as $dir ) {
+ switch ( $dir ) {
+ case ABSPATH:
+ if ( ! $wp_filesystem->abspath() )
+ return new WP_Error('fs_no_root_dir', $this->strings['fs_no_root_dir']);
+ break;
+ case WP_CONTENT_DIR:
+ if ( ! $wp_filesystem->wp_content_dir() )
+ return new WP_Error('fs_no_content_dir', $this->strings['fs_no_content_dir']);
+ break;
+ case WP_PLUGIN_DIR:
+ if ( ! $wp_filesystem->wp_plugins_dir() )
+ return new WP_Error('fs_no_plugins_dir', $this->strings['fs_no_plugins_dir']);
+ break;
+ case get_theme_root():
+ if ( ! $wp_filesystem->wp_themes_dir() )
+ return new WP_Error('fs_no_themes_dir', $this->strings['fs_no_themes_dir']);
+ break;
+ default:
+ if ( ! $wp_filesystem->find_folder($dir) )
+ return new WP_Error( 'fs_no_folder', sprintf( $this->strings['fs_no_folder'], esc_html( basename( $dir ) ) ) );
+ break;
+ }
+ }
+ return true;
+ } //end fs_connect();
+
+ function download_package($package) {
+
+ /**
+ * Filter whether to return the package.
+ *
+ * @since 3.7.0
+ *
+ * @param bool $reply Whether to bail without returning the package. Default is false.
+ * @param string $package The package file name.
+ * @param object $this The WP_Upgrader instance.
+ */
+ $reply = apply_filters( 'upgrader_pre_download', false, $package, $this );
+ if ( false !== $reply )
+ return $reply;
+
+ if ( ! preg_match('!^(http|https|ftp)://!i', $package) && file_exists($package) ) //Local file or remote?
+ return $package; //must be a local file..
+
+ if ( empty($package) )
+ return new WP_Error('no_package', $this->strings['no_package']);
+
+ $this->skin->feedback('downloading_package', $package);
+
+ $download_file = download_url($package);
+
+ if ( is_wp_error($download_file) )
+ return new WP_Error('download_failed', $this->strings['download_failed'], $download_file->get_error_message());
+
+ return $download_file;
+ }
+
+ function unpack_package($package, $delete_package = true) {
+ global $wp_filesystem;
+
+ $this->skin->feedback('unpack_package');
+
+ $upgrade_folder = $wp_filesystem->wp_content_dir() . 'upgrade/';
+
+ //Clean up contents of upgrade directory beforehand.
+ $upgrade_files = $wp_filesystem->dirlist($upgrade_folder);
+ if ( !empty($upgrade_files) ) {
+ foreach ( $upgrade_files as $file )
+ $wp_filesystem->delete($upgrade_folder . $file['name'], true);
+ }
+
+ //We need a working directory
+ $working_dir = $upgrade_folder . basename($package, '.zip');
+
+ // Clean up working directory
+ if ( $wp_filesystem->is_dir($working_dir) )
+ $wp_filesystem->delete($working_dir, true);
+
+ // Unzip package to working directory
+ $result = unzip_file( $package, $working_dir );
+
+ // Once extracted, delete the package if required.
+ if ( $delete_package )
+ unlink($package);
+
+ if ( is_wp_error($result) ) {
+ $wp_filesystem->delete($working_dir, true);
+ if ( 'incompatible_archive' == $result->get_error_code() ) {
+ return new WP_Error( 'incompatible_archive', $this->strings['incompatible_archive'], $result->get_error_data() );
+ }
+ return $result;
+ }
+
+ return $working_dir;
+ }
+
+ function install_package( $args = array() ) {
+ global $wp_filesystem, $wp_theme_directories;
+
+ $defaults = array(
+ 'source' => '', // Please always pass this
+ 'destination' => '', // and this
+ 'clear_destination' => false,
+ 'clear_working' => false,
+ 'abort_if_destination_exists' => true,
+ 'hook_extra' => array()
+ );
+
+ $args = wp_parse_args($args, $defaults);
+ extract($args);
+
+ @set_time_limit( 300 );
+
+ if ( empty($source) || empty($destination) )
+ return new WP_Error('bad_request', $this->strings['bad_request']);
+
+ $this->skin->feedback('installing_package');
+
+ $res = apply_filters('upgrader_pre_install', true, $hook_extra);
+ if ( is_wp_error($res) )
+ return $res;
+
+ //Retain the Original source and destinations
+ $remote_source = $source;
+ $local_destination = $destination;
+
+ $source_files = array_keys( $wp_filesystem->dirlist($remote_source) );
+ $remote_destination = $wp_filesystem->find_folder($local_destination);
+
+ //Locate which directory to copy to the new folder, This is based on the actual folder holding the files.
+ if ( 1 == count($source_files) && $wp_filesystem->is_dir( trailingslashit($source) . $source_files[0] . '/') ) //Only one folder? Then we want its contents.
+ $source = trailingslashit($source) . trailingslashit($source_files[0]);
+ elseif ( count($source_files) == 0 )
+ return new WP_Error( 'incompatible_archive_empty', $this->strings['incompatible_archive'], $this->strings['no_files'] ); // There are no files?
+ else //It's only a single file, the upgrader will use the foldername of this file as the destination folder. foldername is based on zip filename.
+ $source = trailingslashit($source);
+
+ //Hook ability to change the source file location..
+ $source = apply_filters('upgrader_source_selection', $source, $remote_source, $this);
+ if ( is_wp_error($source) )
+ return $source;
+
+ //Has the source location changed? If so, we need a new source_files list.
+ if ( $source !== $remote_source )
+ $source_files = array_keys( $wp_filesystem->dirlist($source) );
+
+ // Protection against deleting files in any important base directories.
+ // Theme_Upgrader & Plugin_Upgrader also trigger this, as they pass the destination directory (WP_PLUGIN_DIR / wp-content/themes)
+ // intending to copy the directory into the directory, whilst they pass the source as the actual files to copy.
+ $protected_directories = array( ABSPATH, WP_CONTENT_DIR, WP_PLUGIN_DIR, WP_CONTENT_DIR . '/themes' );
+ if ( is_array( $wp_theme_directories ) )
+ $protected_directories = array_merge( $protected_directories, $wp_theme_directories );
+ if ( in_array( $destination, $protected_directories ) ) {
+ $remote_destination = trailingslashit($remote_destination) . trailingslashit(basename($source));
+ $destination = trailingslashit($destination) . trailingslashit(basename($source));
+ }
+
+ if ( $clear_destination ) {
+ //We're going to clear the destination if there's something there
+ $this->skin->feedback('remove_old');
+ $removed = true;
+ if ( $wp_filesystem->exists($remote_destination) )
+ $removed = $wp_filesystem->delete($remote_destination, true);
+ $removed = apply_filters('upgrader_clear_destination', $removed, $local_destination, $remote_destination, $hook_extra);
+
+ if ( is_wp_error($removed) )
+ return $removed;
+ else if ( ! $removed )
+ return new WP_Error('remove_old_failed', $this->strings['remove_old_failed']);
+ } elseif ( $abort_if_destination_exists && $wp_filesystem->exists($remote_destination) ) {
+ //If we're not clearing the destination folder and something exists there already, Bail.
+ //But first check to see if there are actually any files in the folder.
+ $_files = $wp_filesystem->dirlist($remote_destination);
+ if ( ! empty($_files) ) {
+ $wp_filesystem->delete($remote_source, true); //Clear out the source files.
+ return new WP_Error('folder_exists', $this->strings['folder_exists'], $remote_destination );
+ }
+ }
+
+ //Create destination if needed
+ if ( !$wp_filesystem->exists($remote_destination) )
+ if ( !$wp_filesystem->mkdir($remote_destination, FS_CHMOD_DIR) )
+ return new WP_Error( 'mkdir_failed_destination', $this->strings['mkdir_failed'], $remote_destination );
+
+ // Copy new version of item into place.
+ $result = copy_dir($source, $remote_destination);
+ if ( is_wp_error($result) ) {
+ if ( $clear_working )
+ $wp_filesystem->delete($remote_source, true);
+ return $result;
+ }
+
+ //Clear the Working folder?
+ if ( $clear_working )
+ $wp_filesystem->delete($remote_source, true);
+
+ $destination_name = basename( str_replace($local_destination, '', $destination) );
+ if ( '.' == $destination_name )
+ $destination_name = '';
+
+ $this->result = compact('local_source', 'source', 'source_name', 'source_files', 'destination', 'destination_name', 'local_destination', 'remote_destination', 'clear_destination', 'delete_source_dir');
+
+ $res = apply_filters('upgrader_post_install', true, $hook_extra, $this->result);
+ if ( is_wp_error($res) ) {
+ $this->result = $res;
+ return $res;
+ }
+
+ //Bombard the calling function will all the info which we've just used.
+ return $this->result;
+ }
+
+ function run($options) {
+
+ $defaults = array(
+ 'package' => '', // Please always pass this.
+ 'destination' => '', // And this
+ 'clear_destination' => false,
+ 'abort_if_destination_exists' => true, // Abort if the Destination directory exists, Pass clear_destination as false please
+ 'clear_working' => true,
+ 'is_multi' => false,
+ 'hook_extra' => array() // Pass any extra $hook_extra args here, this will be passed to any hooked filters.
+ );
+
+ $options = wp_parse_args($options, $defaults);
+ extract($options);
+
+ if ( ! $is_multi ) // call $this->header separately if running multiple times
+ $this->skin->header();
+
+ // Connect to the Filesystem first.
+ $res = $this->fs_connect( array(WP_CONTENT_DIR, $destination) );
+ // Mainly for non-connected filesystem.
+ if ( ! $res ) {
+ if ( ! $is_multi )
+ $this->skin->footer();
+ return false;
+ }
+
+ $this->skin->before();
+
+ if ( is_wp_error($res) ) {
+ $this->skin->error($res);
+ $this->skin->after();
+ if ( ! $is_multi )
+ $this->skin->footer();
+ return $res;
+ }
+
+ //Download the package (Note, This just returns the filename of the file if the package is a local file)
+ $download = $this->download_package( $package );
+ if ( is_wp_error($download) ) {
+ $this->skin->error($download);
+ $this->skin->after();
+ if ( ! $is_multi )
+ $this->skin->footer();
+ return $download;
+ }
+
+ $delete_package = ($download != $package); // Do not delete a "local" file
+
+ //Unzips the file into a temporary directory
+ $working_dir = $this->unpack_package( $download, $delete_package );
+ if ( is_wp_error($working_dir) ) {
+ $this->skin->error($working_dir);
+ $this->skin->after();
+ if ( ! $is_multi )
+ $this->skin->footer();
+ return $working_dir;
+ }
+
+ //With the given options, this installs it to the destination directory.
+ $result = $this->install_package( array(
+ 'source' => $working_dir,
+ 'destination' => $destination,
+ 'clear_destination' => $clear_destination,
+ 'abort_if_destination_exists' => $abort_if_destination_exists,
+ 'clear_working' => $clear_working,
+ 'hook_extra' => $hook_extra
+ ) );
+
+ $this->skin->set_result($result);
+ if ( is_wp_error($result) ) {
+ $this->skin->error($result);
+ $this->skin->feedback('process_failed');
+ } else {
+ //Install Succeeded
+ $this->skin->feedback('process_success');
+ }
+
+ $this->skin->after();
+
+ if ( ! $is_multi ) {
+ do_action( 'upgrader_process_complete', $this, $hook_extra );
+ $this->skin->footer();
+ }
+
+ return $result;
+ }
+
+ function maintenance_mode($enable = false) {
+ global $wp_filesystem;
+ $file = $wp_filesystem->abspath() . '.maintenance';
+ if ( $enable ) {
+ $this->skin->feedback('maintenance_start');
+ // Create maintenance file to signal that we are upgrading
+ $maintenance_string = '<?php $upgrading = ' . time() . '; ?>';
+ $wp_filesystem->delete($file);
+ $wp_filesystem->put_contents($file, $maintenance_string, FS_CHMOD_FILE);
+ } else if ( !$enable && $wp_filesystem->exists($file) ) {
+ $this->skin->feedback('maintenance_end');
+ $wp_filesystem->delete($file);
+ }
+ }
+
+}
+
+/**
+ * Plugin Upgrader class for WordPress Plugins, It is designed to upgrade/install plugins from a local zip, remote zip URL, or uploaded zip file.
+ *
+ * @package WordPress
+ * @subpackage Upgrader
+ * @since 2.8.0
+ */
+class Plugin_Upgrader extends WP_Upgrader {
+
+ var $result;
+ var $bulk = false;
+ var $show_before = '';
+
+ function upgrade_strings() {
+ $this->strings['up_to_date'] = __('The plugin is at the latest version.');
+ $this->strings['no_package'] = __('Update package not available.');
+ $this->strings['downloading_package'] = __('Downloading update from <span class="code">%s</span>…');
+ $this->strings['unpack_package'] = __('Unpacking the update…');
+ $this->strings['remove_old'] = __('Removing the old version of the plugin…');
+ $this->strings['remove_old_failed'] = __('Could not remove the old plugin.');
+ $this->strings['process_failed'] = __('Plugin update failed.');
+ $this->strings['process_success'] = __('Plugin updated successfully.');
+ }
+
+ function install_strings() {
+ $this->strings['no_package'] = __('Install package not available.');
+ $this->strings['downloading_package'] = __('Downloading install package from <span class="code">%s</span>…');
+ $this->strings['unpack_package'] = __('Unpacking the package…');
+ $this->strings['installing_package'] = __('Installing the plugin…');
+ $this->strings['no_files'] = __('The plugin contains no files.');
+ $this->strings['process_failed'] = __('Plugin install failed.');
+ $this->strings['process_success'] = __('Plugin installed successfully.');
+ }
+
+ function install( $package, $args = array() ) {
+
+ $defaults = array(
+ 'clear_update_cache' => true,
+ );
+ $parsed_args = wp_parse_args( $args, $defaults );
+
+ $this->init();
+ $this->install_strings();
+
+ add_filter('upgrader_source_selection', array($this, 'check_package') );
+
+ $this->run( array(
+ 'package' => $package,
+ 'destination' => WP_PLUGIN_DIR,
+ 'clear_destination' => false, // Do not overwrite files.
+ 'clear_working' => true,
+ 'hook_extra' => array(
+ 'type' => 'plugin',
+ 'action' => 'install',
+ )
+ ) );
+
+ remove_filter('upgrader_source_selection', array($this, 'check_package') );
+
+ if ( ! $this->result || is_wp_error($this->result) )
+ return $this->result;
+
+ // Force refresh of plugin update information
+ wp_clean_plugins_cache( $parsed_args['clear_update_cache'] );
+
+ return true;
+ }
+
+ function upgrade( $plugin, $args = array() ) {
+
+ $defaults = array(
+ 'clear_update_cache' => true,
+ );
+ $parsed_args = wp_parse_args( $args, $defaults );
+
+ $this->init();
+ $this->upgrade_strings();
+
+ $current = get_site_transient( 'update_plugins' );
+ if ( !isset( $current->response[ $plugin ] ) ) {
+ $this->skin->before();
+ $this->skin->set_result(false);
+ $this->skin->error('up_to_date');
+ $this->skin->after();
+ return false;
+ }
+
+ // Get the URL to the zip file
+ $r = $current->response[ $plugin ];
+
+ add_filter('upgrader_pre_install', array($this, 'deactivate_plugin_before_upgrade'), 10, 2);
+ add_filter('upgrader_clear_destination', array($this, 'delete_old_plugin'), 10, 4);
+ //'source_selection' => array($this, 'source_selection'), //there's a trac ticket to move up the directory for zip's which are made a bit differently, useful for non-.org plugins.
+
+ $this->run( array(
+ 'package' => $r->package,
+ 'destination' => WP_PLUGIN_DIR,
+ 'clear_destination' => true,
+ 'clear_working' => true,
+ 'hook_extra' => array(
+ 'plugin' => $plugin,
+ 'type' => 'plugin',
+ 'action' => 'update',
+ ),
+ ) );
+
+ // Cleanup our hooks, in case something else does a upgrade on this connection.
+ remove_filter('upgrader_pre_install', array($this, 'deactivate_plugin_before_upgrade'));
+ remove_filter('upgrader_clear_destination', array($this, 'delete_old_plugin'));
+
+ if ( ! $this->result || is_wp_error($this->result) )
+ return $this->result;
+
+ // Force refresh of plugin update information
+ wp_clean_plugins_cache( $parsed_args['clear_update_cache'] );
+
+ return true;
+ }
+
+ function bulk_upgrade( $plugins, $args = array() ) {
+
+ $defaults = array(
+ 'clear_update_cache' => true,
+ );
+ $parsed_args = wp_parse_args( $args, $defaults );
+
+ $this->init();
+ $this->bulk = true;
+ $this->upgrade_strings();
+
+ $current = get_site_transient( 'update_plugins' );
+
+ add_filter('upgrader_clear_destination', array($this, 'delete_old_plugin'), 10, 4);
+
+ $this->skin->header();
+
+ // Connect to the Filesystem first.
+ $res = $this->fs_connect( array(WP_CONTENT_DIR, WP_PLUGIN_DIR) );
+ if ( ! $res ) {
+ $this->skin->footer();
+ return false;
+ }
+
+ $this->skin->bulk_header();
+
+ // Only start maintenance mode if:
+ // - running Multisite and there are one or more plugins specified, OR
+ // - a plugin with an update available is currently active.
+ // @TODO: For multisite, maintenance mode should only kick in for individual sites if at all possible.
+ $maintenance = ( is_multisite() && ! empty( $plugins ) );
+ foreach ( $plugins as $plugin )
+ $maintenance = $maintenance || ( is_plugin_active( $plugin ) && isset( $current->response[ $plugin] ) );
+ if ( $maintenance )
+ $this->maintenance_mode(true);
+
+ $results = array();
+
+ $this->update_count = count($plugins);
+ $this->update_current = 0;
+ foreach ( $plugins as $plugin ) {
+ $this->update_current++;
+ $this->skin->plugin_info = get_plugin_data( WP_PLUGIN_DIR . '/' . $plugin, false, true);
+
+ if ( !isset( $current->response[ $plugin ] ) ) {
+ $this->skin->set_result(true);
+ $this->skin->before();
+ $this->skin->feedback('up_to_date');
+ $this->skin->after();
+ $results[$plugin] = true;
+ continue;
+ }
+
+ // Get the URL to the zip file
+ $r = $current->response[ $plugin ];
+
+ $this->skin->plugin_active = is_plugin_active($plugin);
+
+ $result = $this->run( array(
+ 'package' => $r->package,
+ 'destination' => WP_PLUGIN_DIR,
+ 'clear_destination' => true,
+ 'clear_working' => true,
+ 'is_multi' => true,
+ 'hook_extra' => array(
+ 'plugin' => $plugin
+ )
+ ) );
+
+ $results[$plugin] = $this->result;
+
+ // Prevent credentials auth screen from displaying multiple times
+ if ( false === $result )
+ break;
+ } //end foreach $plugins
+
+ $this->maintenance_mode(false);
+
+ do_action( 'upgrader_process_complete', $this, array(
+ 'action' => 'update',
+ 'type' => 'plugin',
+ 'bulk' => true,
+ 'plugins' => $plugins,
+ ) );
+
+ $this->skin->bulk_footer();
+
+ $this->skin->footer();
+
+ // Cleanup our hooks, in case something else does a upgrade on this connection.
+ remove_filter('upgrader_clear_destination', array($this, 'delete_old_plugin'));
+
+ // Force refresh of plugin update information
+ wp_clean_plugins_cache( $parsed_args['clear_update_cache'] );
+
+ return $results;
+ }
+
+ function check_package($source) {
+ global $wp_filesystem;
+
+ if ( is_wp_error($source) )
+ return $source;
+
+ $working_directory = str_replace( $wp_filesystem->wp_content_dir(), trailingslashit(WP_CONTENT_DIR), $source);
+ if ( ! is_dir($working_directory) ) // Sanity check, if the above fails, lets not prevent installation.
+ return $source;
+
+ // Check the folder contains at least 1 valid plugin.
+ $plugins_found = false;
+ foreach ( glob( $working_directory . '*.php' ) as $file ) {
+ $info = get_plugin_data($file, false, false);
+ if ( !empty( $info['Name'] ) ) {
+ $plugins_found = true;
+ break;
+ }
+ }
+
+ if ( ! $plugins_found )
+ return new WP_Error( 'incompatible_archive_no_plugins', $this->strings['incompatible_archive'], __( 'No valid plugins were found.' ) );
+
+ return $source;
+ }
+
+ //return plugin info.
+ function plugin_info() {
+ if ( ! is_array($this->result) )
+ return false;
+ if ( empty($this->result['destination_name']) )
+ return false;
+
+ $plugin = get_plugins('/' . $this->result['destination_name']); //Ensure to pass with leading slash
+ if ( empty($plugin) )
+ return false;
+
+ $pluginfiles = array_keys($plugin); //Assume the requested plugin is the first in the list
+
+ return $this->result['destination_name'] . '/' . $pluginfiles[0];
+ }
+
+ //Hooked to pre_install
+ function deactivate_plugin_before_upgrade($return, $plugin) {
+
+ if ( is_wp_error($return) ) //Bypass.
+ return $return;
+
+ // When in cron (background updates) don't deactivate the plugin, as we require a browser to reactivate it
+ if ( defined( 'DOING_CRON' ) && DOING_CRON )
+ return $return;
+
+ $plugin = isset($plugin['plugin']) ? $plugin['plugin'] : '';
+ if ( empty($plugin) )
+ return new WP_Error('bad_request', $this->strings['bad_request']);
+
+ if ( is_plugin_active($plugin) ) {
+ //Deactivate the plugin silently, Prevent deactivation hooks from running.
+ deactivate_plugins($plugin, true);
+ }
+ }
+
+ //Hooked to upgrade_clear_destination
+ function delete_old_plugin($removed, $local_destination, $remote_destination, $plugin) {
+ global $wp_filesystem;
+
+ if ( is_wp_error($removed) )
+ return $removed; //Pass errors through.
+
+ $plugin = isset($plugin['plugin']) ? $plugin['plugin'] : '';
+ if ( empty($plugin) )
+ return new WP_Error('bad_request', $this->strings['bad_request']);
+
+ $plugins_dir = $wp_filesystem->wp_plugins_dir();
+ $this_plugin_dir = trailingslashit( dirname($plugins_dir . $plugin) );
+
+ if ( ! $wp_filesystem->exists($this_plugin_dir) ) //If it's already vanished.
+ return $removed;
+
+ // If plugin is in its own directory, recursively delete the directory.
+ if ( strpos($plugin, '/') && $this_plugin_dir != $plugins_dir ) //base check on if plugin includes directory separator AND that it's not the root plugin folder
+ $deleted = $wp_filesystem->delete($this_plugin_dir, true);
+ else
+ $deleted = $wp_filesystem->delete($plugins_dir . $plugin);
+
+ if ( ! $deleted )
+ return new WP_Error('remove_old_failed', $this->strings['remove_old_failed']);
+
+ return true;
+ }
+}
+
+/**
+ * Theme Upgrader class for WordPress Themes, It is designed to upgrade/install themes from a local zip, remote zip URL, or uploaded zip file.
+ *
+ * @package WordPress
+ * @subpackage Upgrader
+ * @since 2.8.0
+ */
+class Theme_Upgrader extends WP_Upgrader {
+
+ var $result;
+ var $bulk = false;
+
+ function upgrade_strings() {
+ $this->strings['up_to_date'] = __('The theme is at the latest version.');
+ $this->strings['no_package'] = __('Update package not available.');
+ $this->strings['downloading_package'] = __('Downloading update from <span class="code">%s</span>…');
+ $this->strings['unpack_package'] = __('Unpacking the update…');
+ $this->strings['remove_old'] = __('Removing the old version of the theme…');
+ $this->strings['remove_old_failed'] = __('Could not remove the old theme.');
+ $this->strings['process_failed'] = __('Theme update failed.');
+ $this->strings['process_success'] = __('Theme updated successfully.');
+ }
+
+ function install_strings() {
+ $this->strings['no_package'] = __('Install package not available.');
+ $this->strings['downloading_package'] = __('Downloading install package from <span class="code">%s</span>…');
+ $this->strings['unpack_package'] = __('Unpacking the package…');
+ $this->strings['installing_package'] = __('Installing the theme…');
+ $this->strings['no_files'] = __('The theme contains no files.');
+ $this->strings['process_failed'] = __('Theme install failed.');
+ $this->strings['process_success'] = __('Theme installed successfully.');
+ /* translators: 1: theme name, 2: version */
+ $this->strings['process_success_specific'] = __('Successfully installed the theme <strong>%1$s %2$s</strong>.');
+ $this->strings['parent_theme_search'] = __('This theme requires a parent theme. Checking if it is installed…');
+ /* translators: 1: theme name, 2: version */
+ $this->strings['parent_theme_prepare_install'] = __('Preparing to install <strong>%1$s %2$s</strong>…');
+ /* translators: 1: theme name, 2: version */
+ $this->strings['parent_theme_currently_installed'] = __('The parent theme, <strong>%1$s %2$s</strong>, is currently installed.');
+ /* translators: 1: theme name, 2: version */
+ $this->strings['parent_theme_install_success'] = __('Successfully installed the parent theme, <strong>%1$s %2$s</strong>.');
+ $this->strings['parent_theme_not_found'] = __('<strong>The parent theme could not be found.</strong> You will need to install the parent theme, <strong>%s</strong>, before you can use this child theme.');
+ }
+
+ function check_parent_theme_filter($install_result, $hook_extra, $child_result) {
+ // Check to see if we need to install a parent theme
+ $theme_info = $this->theme_info();
+
+ if ( ! $theme_info->parent() )
+ return $install_result;
+
+ $this->skin->feedback( 'parent_theme_search' );
+
+ if ( ! $theme_info->parent()->errors() ) {
+ $this->skin->feedback( 'parent_theme_currently_installed', $theme_info->parent()->display('Name'), $theme_info->parent()->display('Version') );
+ // We already have the theme, fall through.
+ return $install_result;
+ }
+
+ // We don't have the parent theme, lets install it
+ $api = themes_api('theme_information', array('slug' => $theme_info->get('Template'), 'fields' => array('sections' => false, 'tags' => false) ) ); //Save on a bit of bandwidth.
+
+ if ( ! $api || is_wp_error($api) ) {
+ $this->skin->feedback( 'parent_theme_not_found', $theme_info->get('Template') );
+ // Don't show activate or preview actions after install
+ add_filter('install_theme_complete_actions', array($this, 'hide_activate_preview_actions') );
+ return $install_result;
+ }
+
+ // Backup required data we're going to override:
+ $child_api = $this->skin->api;
+ $child_success_message = $this->strings['process_success'];
+
+ // Override them
+ $this->skin->api = $api;
+ $this->strings['process_success_specific'] = $this->strings['parent_theme_install_success'];//, $api->name, $api->version);
+
+ $this->skin->feedback('parent_theme_prepare_install', $api->name, $api->version);
+
+ add_filter('install_theme_complete_actions', '__return_false', 999); // Don't show any actions after installing the theme.
+
+ // Install the parent theme
+ $parent_result = $this->run( array(
+ 'package' => $api->download_link,
+ 'destination' => get_theme_root(),
+ 'clear_destination' => false, //Do not overwrite files.
+ 'clear_working' => true
+ ) );
+
+ if ( is_wp_error($parent_result) )
+ add_filter('install_theme_complete_actions', array($this, 'hide_activate_preview_actions') );
+
+ // Start cleaning up after the parents installation
+ remove_filter('install_theme_complete_actions', '__return_false', 999);
+
+ // Reset child's result and data
+ $this->result = $child_result;
+ $this->skin->api = $child_api;
+ $this->strings['process_success'] = $child_success_message;
+
+ return $install_result;
+ }
+
+ function hide_activate_preview_actions($actions) {
+ unset($actions['activate'], $actions['preview']);
+ return $actions;
+ }
+
+ function install( $package, $args = array() ) {
+
+ $defaults = array(
+ 'clear_update_cache' => true,
+ );
+ $parsed_args = wp_parse_args( $args, $defaults );
+
+ $this->init();
+ $this->install_strings();
+
+ add_filter('upgrader_source_selection', array($this, 'check_package') );
+ add_filter('upgrader_post_install', array($this, 'check_parent_theme_filter'), 10, 3);
+
+ $this->run( array(
+ 'package' => $package,
+ 'destination' => get_theme_root(),
+ 'clear_destination' => false, //Do not overwrite files.
+ 'clear_working' => true,
+ 'hook_extra' => array(
+ 'type' => 'theme',
+ 'action' => 'install',
+ ),
+ ) );
+
+ remove_filter('upgrader_source_selection', array($this, 'check_package') );
+ remove_filter('upgrader_post_install', array($this, 'check_parent_theme_filter'));
+
+ if ( ! $this->result || is_wp_error($this->result) )
+ return $this->result;
+
+ // Refresh the Theme Update information
+ wp_clean_themes_cache( $parsed_args['clear_update_cache'] );
+
+ return true;
+ }
+
+ function upgrade( $theme, $args = array() ) {
+
+ $defaults = array(
+ 'clear_update_cache' => true,
+ );
+ $parsed_args = wp_parse_args( $args, $defaults );
+
+ $this->init();
+ $this->upgrade_strings();
+
+ // Is an update available?
+ $current = get_site_transient( 'update_themes' );
+ if ( !isset( $current->response[ $theme ] ) ) {
+ $this->skin->before();
+ $this->skin->set_result(false);
+ $this->skin->error('up_to_date');
+ $this->skin->after();
+ return false;
+ }
+
+ $r = $current->response[ $theme ];
+
+ add_filter('upgrader_pre_install', array($this, 'current_before'), 10, 2);
+ add_filter('upgrader_post_install', array($this, 'current_after'), 10, 2);
+ add_filter('upgrader_clear_destination', array($this, 'delete_old_theme'), 10, 4);
+
+ $this->run( array(
+ 'package' => $r['package'],
+ 'destination' => get_theme_root( $theme ),
+ 'clear_destination' => true,
+ 'clear_working' => true,
+ 'hook_extra' => array(
+ 'theme' => $theme,
+ 'type' => 'theme',
+ 'action' => 'update',
+ ),
+ ) );
+
+ remove_filter('upgrader_pre_install', array($this, 'current_before'));
+ remove_filter('upgrader_post_install', array($this, 'current_after'));
+ remove_filter('upgrader_clear_destination', array($this, 'delete_old_theme'));
+
+ if ( ! $this->result || is_wp_error($this->result) )
+ return $this->result;
+
+ wp_clean_themes_cache( $parsed_args['clear_update_cache'] );
+
+ return true;
+ }
+
+ function bulk_upgrade( $themes, $args = array() ) {
+
+ $defaults = array(
+ 'clear_update_cache' => true,
+ );
+ $parsed_args = wp_parse_args( $args, $defaults );
+
+ $this->init();
+ $this->bulk = true;
+ $this->upgrade_strings();
+
+ $current = get_site_transient( 'update_themes' );
+
+ add_filter('upgrader_pre_install', array($this, 'current_before'), 10, 2);
+ add_filter('upgrader_post_install', array($this, 'current_after'), 10, 2);
+ add_filter('upgrader_clear_destination', array($this, 'delete_old_theme'), 10, 4);
+
+ $this->skin->header();
+
+ // Connect to the Filesystem first.
+ $res = $this->fs_connect( array(WP_CONTENT_DIR) );
+ if ( ! $res ) {
+ $this->skin->footer();
+ return false;
+ }
+
+ $this->skin->bulk_header();
+
+ // Only start maintenance mode if:
+ // - running Multisite and there are one or more themes specified, OR
+ // - a theme with an update available is currently in use.
+ // @TODO: For multisite, maintenance mode should only kick in for individual sites if at all possible.
+ $maintenance = ( is_multisite() && ! empty( $themes ) );
+ foreach ( $themes as $theme )
+ $maintenance = $maintenance || $theme == get_stylesheet() || $theme == get_template();
+ if ( $maintenance )
+ $this->maintenance_mode(true);
+
+ $results = array();
+
+ $this->update_count = count($themes);
+ $this->update_current = 0;
+ foreach ( $themes as $theme ) {
+ $this->update_current++;
+
+ $this->skin->theme_info = $this->theme_info($theme);
+
+ if ( !isset( $current->response[ $theme ] ) ) {
+ $this->skin->set_result(true);
+ $this->skin->before();
+ $this->skin->feedback('up_to_date');
+ $this->skin->after();
+ $results[$theme] = true;
+ continue;
+ }
+
+ // Get the URL to the zip file
+ $r = $current->response[ $theme ];
+
+ $result = $this->run( array(
+ 'package' => $r['package'],
+ 'destination' => get_theme_root( $theme ),
+ 'clear_destination' => true,
+ 'clear_working' => true,
+ 'hook_extra' => array(
+ 'theme' => $theme
+ ),
+ ) );
+
+ $results[$theme] = $this->result;
+
+ // Prevent credentials auth screen from displaying multiple times
+ if ( false === $result )
+ break;
+ } //end foreach $plugins
+
+ $this->maintenance_mode(false);
+
+ do_action( 'upgrader_process_complete', $this, array(
+ 'action' => 'update',
+ 'type' => 'plugin',
+ 'bulk' => true,
+ 'themes' => $themes,
+ ) );
+
+ $this->skin->bulk_footer();
+
+ $this->skin->footer();
+
+ // Cleanup our hooks, in case something else does a upgrade on this connection.
+ remove_filter('upgrader_pre_install', array($this, 'current_before'));
+ remove_filter('upgrader_post_install', array($this, 'current_after'));
+ remove_filter('upgrader_clear_destination', array($this, 'delete_old_theme'));
+
+ // Refresh the Theme Update information
+ wp_clean_themes_cache( $parsed_args['clear_update_cache'] );
+
+ return $results;
+ }
+
+ function check_package($source) {
+ global $wp_filesystem;
+
+ if ( is_wp_error($source) )
+ return $source;
+
+ // Check the folder contains a valid theme
+ $working_directory = str_replace( $wp_filesystem->wp_content_dir(), trailingslashit(WP_CONTENT_DIR), $source);
+ if ( ! is_dir($working_directory) ) // Sanity check, if the above fails, lets not prevent installation.
+ return $source;
+
+ // A proper archive should have a style.css file in the single subdirectory
+ if ( ! file_exists( $working_directory . 'style.css' ) )
+ return new WP_Error( 'incompatible_archive_theme_no_style', $this->strings['incompatible_archive'], __( 'The theme is missing the <code>style.css</code> stylesheet.' ) );
+
+ $info = get_file_data( $working_directory . 'style.css', array( 'Name' => 'Theme Name', 'Template' => 'Template' ) );
+
+ if ( empty( $info['Name'] ) )
+ return new WP_Error( 'incompatible_archive_theme_no_name', $this->strings['incompatible_archive'], __( "The <code>style.css</code> stylesheet doesn't contain a valid theme header." ) );
+
+ // If it's not a child theme, it must have at least an index.php to be legit.
+ if ( empty( $info['Template'] ) && ! file_exists( $working_directory . 'index.php' ) )
+ return new WP_Error( 'incompatible_archive_theme_no_index', $this->strings['incompatible_archive'], __( 'The theme is missing the <code>index.php</code> file.' ) );
+
+ return $source;
+ }
+
+ function current_before($return, $theme) {
+
+ if ( is_wp_error($return) )
+ return $return;
+
+ $theme = isset($theme['theme']) ? $theme['theme'] : '';
+
+ if ( $theme != get_stylesheet() ) //If not current
+ return $return;
+ //Change to maintenance mode now.
+ if ( ! $this->bulk )
+ $this->maintenance_mode(true);
+
+ return $return;
+ }
+
+ function current_after($return, $theme) {
+ if ( is_wp_error($return) )
+ return $return;
+
+ $theme = isset($theme['theme']) ? $theme['theme'] : '';
+
+ if ( $theme != get_stylesheet() ) // If not current
+ return $return;
+
+ // Ensure stylesheet name hasn't changed after the upgrade:
+ if ( $theme == get_stylesheet() && $theme != $this->result['destination_name'] ) {
+ wp_clean_themes_cache();
+ $stylesheet = $this->result['destination_name'];
+ switch_theme( $stylesheet );
+ }
+
+ //Time to remove maintenance mode
+ if ( ! $this->bulk )
+ $this->maintenance_mode(false);
+ return $return;
+ }
+
+ function delete_old_theme( $removed, $local_destination, $remote_destination, $theme ) {
+ global $wp_filesystem;
+
+ if ( is_wp_error( $removed ) )
+ return $removed; // Pass errors through.
+
+ if ( ! isset( $theme['theme'] ) )
+ return $removed;
+
+ $theme = $theme['theme'];
+ $themes_dir = trailingslashit( $wp_filesystem->wp_themes_dir( $theme ) );
+ if ( $wp_filesystem->exists( $themes_dir . $theme ) ) {
+ if ( ! $wp_filesystem->delete( $themes_dir . $theme, true ) )
+ return false;
+ }
+
+ return true;
+ }
+
+ function theme_info($theme = null) {
+
+ if ( empty($theme) ) {
+ if ( !empty($this->result['destination_name']) )
+ $theme = $this->result['destination_name'];
+ else
+ return false;
+ }
+ return wp_get_theme( $theme );
+ }
+
+}
+
+add_action( 'upgrader_process_complete', array( 'Language_Pack_Upgrader', 'async_upgrade' ), 20 );
+
+/**
+ * Language pack upgrader, for updating translations of plugins, themes, and core.
+ *
+ * @package WordPress
+ * @subpackage Upgrader
+ * @since 3.7.0
+ */
+class Language_Pack_Upgrader extends WP_Upgrader {
+
+ var $result;
+ var $bulk = true;
+
+ static function async_upgrade( $upgrader = false ) {
+ // Avoid recursion.
+ if ( $upgrader && $upgrader instanceof Language_Pack_Upgrader )
+ return;
+
+ // Nothing to do?
+ $language_updates = wp_get_translation_updates();
+ if ( ! $language_updates )
+ return;
+
+ $skin = new Language_Pack_Upgrader_Skin( array(
+ 'skip_header_footer' => true,
+ ) );
+
+ $lp_upgrader = new Language_Pack_Upgrader( $skin );
+ $lp_upgrader->upgrade();
+ }
+
+ function upgrade_strings() {
+ $this->strings['starting_upgrade'] = __( 'Some of your translations need updating. Sit tight for a few more seconds while we update them as well.' );
+ $this->strings['up_to_date'] = __( 'The translation is up to date.' ); // We need to silently skip this case
+ $this->strings['no_package'] = __( 'Update package not available.' );
+ $this->strings['downloading_package'] = __( 'Downloading translation from <span class="code">%s</span>…' );
+ $this->strings['unpack_package'] = __( 'Unpacking the update…' );
+ $this->strings['process_failed'] = __( 'Translation update failed.' );
+ $this->strings['process_success'] = __( 'Translation updated successfully.' );
+ }
+
+ function upgrade( $update = false, $args = array() ) {
+ if ( $update )
+ $update = array( $update );
+ $results = $this->bulk_upgrade( $update, $args );
+ return $results[0];
+ }
+
+ function bulk_upgrade( $language_updates = array(), $args = array() ) {
+ global $wp_filesystem;
+
+ $defaults = array(
+ 'clear_update_cache' => true,
+ );
+ $parsed_args = wp_parse_args( $args, $defaults );
+
+ $this->init();
+ $this->upgrade_strings();
+
+ if ( ! $language_updates )
+ $language_updates = wp_get_translation_updates();
+
+ if ( empty( $language_updates ) ) {
+ $this->skin->header();
+ $this->skin->before();
+ $this->skin->set_result( true );
+ $this->skin->feedback( 'up_to_date' );
+ $this->skin->after();
+ $this->skin->bulk_footer();
+ $this->skin->footer();
+ return true;
+ }
+
+ if ( 'upgrader_process_complete' == current_filter() )
+ $this->skin->feedback( 'starting_upgrade' );
+
+ add_filter( 'upgrader_source_selection', array( &$this, 'check_package' ), 10, 3 );
+
+ $this->skin->header();
+
+ // Connect to the Filesystem first.
+ $res = $this->fs_connect( array( WP_CONTENT_DIR, WP_LANG_DIR ) );
+ if ( ! $res ) {
+ $this->skin->footer();
+ return false;
+ }
+
+ $results = array();
+
+ $this->update_count = count( $language_updates );
+ $this->update_current = 0;
+
+ // The filesystem's mkdir() is not recursive. Make sure WP_LANG_DIR exists,
+ // as we then may need to create a /plugins or /themes directory inside of it.
+ $remote_destination = $wp_filesystem->find_folder( WP_LANG_DIR );
+ if ( ! $wp_filesystem->exists( $remote_destination ) )
+ if ( ! $wp_filesystem->mkdir( $remote_destination, FS_CHMOD_DIR ) )
+ return new WP_Error( 'mkdir_failed_lang_dir', $this->strings['mkdir_failed'], $remote_destination );
+
+ foreach ( $language_updates as $language_update ) {
+
+ $this->skin->language_update = $language_update;
+
+ $destination = WP_LANG_DIR;
+ if ( 'plugin' == $language_update->type )
+ $destination .= '/plugins';
+ elseif ( 'theme' == $language_update->type )
+ $destination .= '/themes';
+
+ $this->update_current++;
+
+ $options = array(
+ 'package' => $language_update->package,
+ 'destination' => $destination,
+ 'clear_destination' => false,
+ 'abort_if_destination_exists' => false, // We expect the destination to exist.
+ 'clear_working' => true,
+ 'is_multi' => true,
+ 'hook_extra' => array(
+ 'language_update_type' => $language_update->type,
+ 'language_update' => $language_update,
+ )
+ );
+
+ $result = $this->run( $options );
+
+ $results[] = $this->result;
+
+ // Prevent credentials auth screen from displaying multiple times.
+ if ( false === $result )
+ break;
+ }
+
+ $this->skin->bulk_footer();
+
+ $this->skin->footer();
+
+ // Clean up our hooks, in case something else does an upgrade on this connection.
+ remove_filter( 'upgrader_source_selection', array( &$this, 'check_package' ), 10, 2 );
+
+ if ( $parsed_args['clear_update_cache'] ) {
+ wp_clean_themes_cache( true );
+ wp_clean_plugins_cache( true );
+ delete_site_transient( 'update_core' );
+ }
+
+ return $results;
+ }
+
+ function check_package( $source, $remote_source ) {
+ global $wp_filesystem;
+
+ if ( is_wp_error( $source ) )
+ return $source;
+
+ // Check that the folder contains a valid language.
+ $files = $wp_filesystem->dirlist( $remote_source );
+
+ // Check to see if a .po and .mo exist in the folder.
+ $po = $mo = false;
+ foreach ( (array) $files as $file => $filedata ) {
+ if ( '.po' == substr( $file, -3 ) )
+ $po = true;
+ elseif ( '.mo' == substr( $file, -3 ) )
+ $mo = true;
+ }
+
+ if ( ! $mo || ! $po )
+ return new WP_Error( 'incompatible_archive_pomo', $this->strings['incompatible_archive'],
+ __( 'The language pack is missing either the <code>.po</code> or <code>.mo</code> files.' ) );
+
+ return $source;
+ }
+
+ function get_name_for_update( $update ) {
+ switch ( $update->type ) {
+ case 'core':
+ return 'WordPress'; // Not translated
+ break;
+ case 'theme':
+ $theme = wp_get_theme( $update->slug );
+ if ( $theme->exists() )
+ return $theme->Get( 'Name' );
+ break;
+ case 'plugin':
+ $plugin_data = get_plugins( '/' . $update->slug );
+ $plugin_data = array_shift( $plugin_data );
+ if ( $plugin_data )
+ return $plugin_data['Name'];
+ break;
+ }
+ return '';
+ }
+
+}
+
+/**
+ * Core Upgrader class for WordPress. It allows for WordPress to upgrade itself in combination with the wp-admin/includes/update-core.php file
+ *
+ * @package WordPress
+ * @subpackage Upgrader
+ * @since 2.8.0
+ */
+class Core_Upgrader extends WP_Upgrader {
+
+ function upgrade_strings() {
+ $this->strings['up_to_date'] = __('WordPress is at the latest version.');
+ $this->strings['no_package'] = __('Update package not available.');
+ $this->strings['downloading_package'] = __('Downloading update from <span class="code">%s</span>…');
+ $this->strings['unpack_package'] = __('Unpacking the update…');
+ $this->strings['copy_failed'] = __('Could not copy files.');
+ $this->strings['copy_failed_space'] = __('Could not copy files. You may have run out of disk space.' );
+ $this->strings['start_rollback'] = __( 'Attempting to roll back to previous version.' );
+ $this->strings['rollback_was_required'] = __( 'Due to an error during updating, WordPress has rolled back to your previous version.' );
+ }
+
+ function upgrade( $current, $args = array() ) {
+ global $wp_filesystem, $wp_version;
+
+ $start_time = time();
+
+ $defaults = array(
+ 'pre_check_md5' => true,
+ 'attempt_rollback' => false,
+ 'do_rollback' => false,
+ );
+ $parsed_args = wp_parse_args( $args, $defaults );
+
+ $this->init();
+ $this->upgrade_strings();
+
+ // Is an update available?
+ if ( !isset( $current->response ) || $current->response == 'latest' )
+ return new WP_Error('up_to_date', $this->strings['up_to_date']);
+
+ $res = $this->fs_connect( array(ABSPATH, WP_CONTENT_DIR) );
+ if ( is_wp_error($res) )
+ return $res;
+
+ $wp_dir = trailingslashit($wp_filesystem->abspath());
+
+ $partial = true;
+ if ( $parsed_args['do_rollback'] )
+ $partial = false;
+ elseif ( $parsed_args['pre_check_md5'] && ! $this->check_files() )
+ $partial = false;
+
+ // If partial update is returned from the API, use that, unless we're doing a reinstall.
+ // If we cross the new_bundled version number, then use the new_bundled zip.
+ // Don't though if the constant is set to skip bundled items.
+ // If the API returns a no_content zip, go with it. Finally, default to the full zip.
+ if ( $parsed_args['do_rollback'] && $current->packages->rollback )
+ $to_download = 'rollback';
+ elseif ( $current->packages->partial && 'reinstall' != $current->response && $wp_version == $current->partial_version && $partial )
+ $to_download = 'partial';
+ elseif ( $current->packages->new_bundled && version_compare( $wp_version, $current->new_bundled, '<' )
+ && ( ! defined( 'CORE_UPGRADE_SKIP_NEW_BUNDLED' ) || ! CORE_UPGRADE_SKIP_NEW_BUNDLED ) )
+ $to_download = 'new_bundled';
+ elseif ( $current->packages->no_content )
+ $to_download = 'no_content';
+ else
+ $to_download = 'full';
+
+ $download = $this->download_package( $current->packages->$to_download );
+ if ( is_wp_error($download) )
+ return $download;
+
+ $working_dir = $this->unpack_package( $download );
+ if ( is_wp_error($working_dir) )
+ return $working_dir;
+
+ // Copy update-core.php from the new version into place.
+ if ( !$wp_filesystem->copy($working_dir . '/wordpress/wp-admin/includes/update-core.php', $wp_dir . 'wp-admin/includes/update-core.php', true) ) {
+ $wp_filesystem->delete($working_dir, true);
+ return new WP_Error( 'copy_failed_for_update_core_file', __( 'The update cannot be installed because we will be unable to copy some files. This is usually due to inconsistent file permissions.' ), 'wp-admin/includes/update-core.php' );
+ }
+ $wp_filesystem->chmod($wp_dir . 'wp-admin/includes/update-core.php', FS_CHMOD_FILE);
+
+ require_once( ABSPATH . 'wp-admin/includes/update-core.php' );
+
+ if ( ! function_exists( 'update_core' ) )
+ return new WP_Error( 'copy_failed_space', $this->strings['copy_failed_space'] );
+
+ $result = update_core( $working_dir, $wp_dir );
+
+ // In the event of an issue, we may be able to roll back.
+ if ( $parsed_args['attempt_rollback'] && $current->packages->rollback && ! $parsed_args['do_rollback'] ) {
+ $try_rollback = false;
+ if ( is_wp_error( $result ) ) {
+ $error_code = $result->get_error_code();
+ // Not all errors are equal. These codes are critical: copy_failed__copy_dir,
+ // mkdir_failed__copy_dir, copy_failed__copy_dir_retry, and disk_full.
+ // do_rollback allows for update_core() to trigger a rollback if needed.
+ if ( false !== strpos( $error_code, 'do_rollback' ) )
+ $try_rollback = true;
+ elseif ( false !== strpos( $error_code, '__copy_dir' ) )
+ $try_rollback = true;
+ elseif ( 'disk_full' === $error_code )
+ $try_rollback = true;
+ }
+
+ if ( $try_rollback ) {
+ apply_filters( 'update_feedback', $result );
+ apply_filters( 'update_feedback', $this->strings['start_rollback'] );
+
+ $rollback_result = $this->upgrade( $current, array_merge( $parsed_args, array( 'do_rollback' => true ) ) );
+
+ $original_result = $result;
+ $result = new WP_Error( 'rollback_was_required', $this->strings['rollback_was_required'], (object) array( 'update' => $original_result, 'rollback' => $rollback_result ) );
+ }
+ }
+
+ do_action( 'upgrader_process_complete', $this, array( 'action' => 'update', 'type' => 'core' ) );
+
+ // Clear the current updates
+ delete_site_transient( 'update_core' );
+
+ if ( ! $parsed_args['do_rollback'] ) {
+ $stats = array(
+ 'update_type' => $current->response,
+ 'success' => true,
+ 'fs_method' => $wp_filesystem->method,
+ 'fs_method_forced' => defined( 'FS_METHOD' ) || has_filter( 'filesystem_method' ),
+ 'time_taken' => time() - $start_time,
+ 'attempted' => $current->version,
+ );
+
+ if ( is_wp_error( $result ) ) {
+ $stats['success'] = false;
+ // Did a rollback occur?
+ if ( ! empty( $try_rollback ) ) {
+ $stats['error_code'] = $original_result->get_error_code();
+ $stats['error_data'] = $original_result->get_error_data();
+ // Was the rollback successful? If not, collect its error too.
+ $stats['rollback'] = ! is_wp_error( $rollback_result );
+ if ( is_wp_error( $rollback_result ) ) {
+ $stats['rollback_code'] = $rollback_result->get_error_code();
+ $stats['rollback_data'] = $rollback_result->get_error_data();
+ }
+ } else {
+ $stats['error_code'] = $result->get_error_code();
+ $stats['error_data'] = $result->get_error_data();
+ }
+ }
+
+ wp_version_check( $stats );
+ }
+
+ return $result;
+ }
+
+ // Determines if this WordPress Core version should update to $offered_ver or not
+ static function should_update_to_version( $offered_ver /* x.y.z */ ) {
+ include ABSPATH . WPINC . '/version.php'; // $wp_version; // x.y.z
+
+ $current_branch = implode( '.', array_slice( preg_split( '/[.-]/', $wp_version ), 0, 2 ) ); // x.y
+ $new_branch = implode( '.', array_slice( preg_split( '/[.-]/', $offered_ver ), 0, 2 ) ); // x.y
+ $current_is_development_version = (bool) strpos( $wp_version, '-' );
+
+ // Defaults:
+ $upgrade_dev = true;
+ $upgrade_minor = true;
+ $upgrade_major = false;
+
+ // WP_AUTO_UPDATE_CORE = true (all), 'minor', false.
+ if ( defined( 'WP_AUTO_UPDATE_CORE' ) ) {
+ if ( false === WP_AUTO_UPDATE_CORE ) {
+ // Defaults to turned off, unless a filter allows it
+ $upgrade_dev = $upgrade_minor = $upgrade_major = false;
+ } elseif ( true === WP_AUTO_UPDATE_CORE ) {
+ // ALL updates for core
+ $upgrade_dev = $upgrade_minor = $upgrade_major = true;
+ } elseif ( 'minor' === WP_AUTO_UPDATE_CORE ) {
+ // Only minor updates for core
+ $upgrade_dev = $upgrade_major = false;
+ $upgrade_minor = true;
+ }
+ }
+
+ // 1: If we're already on that version, not much point in updating?
+ if ( $offered_ver == $wp_version )
+ return false;
+
+ // 2: If we're running a newer version, that's a nope
+ if ( version_compare( $wp_version, $offered_ver, '>' ) )
+ return false;
+
+ $failure_data = get_site_option( 'auto_core_update_failed' );
+ if ( $failure_data ) {
+ // If this was a critical update failure, cannot update.
+ if ( ! empty( $failure_data['critical'] ) )
+ return false;
+
+ // Don't claim we can update on update-core.php if we have a non-critical failure logged.
+ if ( $wp_version == $failure_data['current'] && false !== strpos( $offered_ver, '.1.next.minor' ) )
+ return false;
+
+ // Cannot update if we're retrying the same A to B update that caused a non-critical failure.
+ // Some non-critical failures do allow retries, like download_failed.
+ // 3.7.1 => 3.7.2 resulted in files_not_writable, if we are still on 3.7.1 and still trying to update to 3.7.2.
+ if ( empty( $failure_data['retry'] ) && $wp_version == $failure_data['current'] && $offered_ver == $failure_data['attempted'] )
+ return false;
+ }
+
+ // 3: 3.7-alpha-25000 -> 3.7-alpha-25678 -> 3.7-beta1 -> 3.7-beta2
+ if ( $current_is_development_version ) {
+ if ( ! apply_filters( 'allow_dev_auto_core_updates', $upgrade_dev ) )
+ return false;
+ // else fall through to minor + major branches below
+ }
+
+ // 4: Minor In-branch updates (3.7.0 -> 3.7.1 -> 3.7.2 -> 3.7.4)
+ if ( $current_branch == $new_branch )
+ return apply_filters( 'allow_minor_auto_core_updates', $upgrade_minor );
+
+ // 5: Major version updates (3.7.0 -> 3.8.0 -> 3.9.1)
+ if ( version_compare( $new_branch, $current_branch, '>' ) )
+ return apply_filters( 'allow_major_auto_core_updates', $upgrade_major );
+
+ // If we're not sure, we don't want it
+ return false;
+ }
+
+ function check_files() {
+ global $wp_version, $wp_local_package;
+
+ $checksums = get_core_checksums( $wp_version, isset( $wp_local_package ) ? $wp_local_package : 'en_US' );
+
+ if ( ! is_array( $checksums ) )
+ return false;
+
+ foreach ( $checksums as $file => $checksum ) {
+ // Skip files which get updated
+ if ( 'wp-content' == substr( $file, 0, 10 ) )
+ continue;
+ if ( ! file_exists( ABSPATH . $file ) || md5_file( ABSPATH . $file ) !== $checksum )
+ return false;
+ }
+
+ return true;
+ }
+}
+
+/**
+ * Upgrade Skin helper for File uploads. This class handles the upload process and passes it as if it's a local file to the Upgrade/Installer functions.
+ *
+ * @package WordPress
+ * @subpackage Upgrader
+ * @since 2.8.0
+ */
+class File_Upload_Upgrader {
+ var $package;
+ var $filename;
+ var $id = 0;
+
+ function __construct($form, $urlholder) {
+
+ if ( empty($_FILES[$form]['name']) && empty($_GET[$urlholder]) )
+ wp_die(__('Please select a file'));
+
+ //Handle a newly uploaded file, Else assume it's already been uploaded
+ if ( ! empty($_FILES) ) {
+ $overrides = array( 'test_form' => false, 'test_type' => false );
+ $file = wp_handle_upload( $_FILES[$form], $overrides );
+
+ if ( isset( $file['error'] ) )
+ wp_die( $file['error'] );
+
+ $this->filename = $_FILES[$form]['name'];
+ $this->package = $file['file'];
+
+ // Construct the object array
+ $object = array(
+ 'post_title' => $this->filename,
+ 'post_content' => $file['url'],
+ 'post_mime_type' => $file['type'],
+ 'guid' => $file['url'],
+ 'context' => 'upgrader',
+ 'post_status' => 'private'
+ );
+
+ // Save the data
+ $this->id = wp_insert_attachment( $object, $file['file'] );
+
+ // schedule a cleanup for 2 hours from now in case of failed install
+ wp_schedule_single_event( time() + 7200, 'upgrader_scheduled_cleanup', array( $this->id ) );
+
+ } elseif ( is_numeric( $_GET[$urlholder] ) ) {
+ // Numeric Package = previously uploaded file, see above.
+ $this->id = (int) $_GET[$urlholder];
+ $attachment = get_post( $this->id );
+ if ( empty($attachment) )
+ wp_die(__('Please select a file'));
+
+ $this->filename = $attachment->post_title;
+ $this->package = get_attached_file( $attachment->ID );
+ } else {
+ // Else, It's set to something, Back compat for plugins using the old (pre-3.3) File_Uploader handler.
+ if ( ! ( ( $uploads = wp_upload_dir() ) && false === $uploads['error'] ) )
+ wp_die( $uploads['error'] );
+
+ $this->filename = $_GET[$urlholder];
+ $this->package = $uploads['basedir'] . '/' . $this->filename;
+ }
+ }
+
+ function cleanup() {
+ if ( $this->id )
+ wp_delete_attachment( $this->id );
+
+ elseif ( file_exists( $this->package ) )
+ return @unlink( $this->package );
+
+ return true;
+ }
+}
+
+/**
+ * The WordPress automatic background updater.
+ *
+ * @package WordPress
+ * @subpackage Upgrader
+ * @since 3.7.0
+ */
+class WP_Automatic_Updater {
+
+ /**
+ * Tracks update results during processing.
+ *
+ * @var array
+ */
+ protected $update_results = array();
+
+ /**
+ * Whether the entire automatic updater is disabled.
+ *
+ * @since 3.7.0
+ */
+ public function is_disabled() {
+ // Background updates are disabled if you don't want file changes.
+ if ( defined( 'DISALLOW_FILE_MODS' ) && DISALLOW_FILE_MODS )
+ return true;
+
+ if ( defined( 'WP_INSTALLING' ) )
+ return true;
+
+ // More fine grained control can be done through the WP_AUTO_UPDATE_CORE constant and filters.
+ $disabled = defined( 'AUTOMATIC_UPDATER_DISABLED' ) && AUTOMATIC_UPDATER_DISABLED;
+
+ /**
+ * Filter whether to entirely disable background updates.
+ *
+ * There are more fine-grained filters and controls for selective disabling.
+ * This filter parallels the AUTOMATIC_UPDATER_DISABLED constant in name.
+ *
+ * This also disables update notification emails. That may change in the future.
+ *
+ * @since 3.7.0
+ * @param bool $disabled Whether the updater should be disabled.
+ */
+ return apply_filters( 'automatic_updater_disabled', $disabled );
+ }
+
+ /**
+ * Check for version control checkouts.
+ *
+ * Checks for Subversion, Git, Mercurial, and Bazaar. It recursively looks up the
+ * filesystem to the top of the drive, erring on the side of detecting a VCS
+ * checkout somewhere.
+ *
+ * ABSPATH is always checked in addition to whatever $context is (which may be the
+ * wp-content directory, for example). The underlying assumption is that if you are
+ * using version control *anywhere*, then you should be making decisions for
+ * how things get updated.
+ *
+ * @since 3.7.0
+ *
+ * @param string $context The filesystem path to check, in addition to ABSPATH.
+ */
+ public function is_vcs_checkout( $context ) {
+ $context_dirs = array( untrailingslashit( $context ) );
+ if ( $context !== ABSPATH )
+ $context_dirs[] = untrailingslashit( ABSPATH );
+
+ $vcs_dirs = array( '.svn', '.git', '.hg', '.bzr' );
+ $check_dirs = array();
+
+ foreach ( $context_dirs as $context_dir ) {
+ // Walk up from $context_dir to the root.
+ do {
+ $check_dirs[] = $context_dir;
+
+ // Once we've hit '/' or 'C:\', we need to stop. dirname will keep returning the input here.
+ if ( $context_dir == dirname( $context_dir ) )
+ break;
+
+ // Continue one level at a time.
+ } while ( $context_dir = dirname( $context_dir ) );
+ }
+
+ $check_dirs = array_unique( $check_dirs );
+
+ // Search all directories we've found for evidence of version control.
+ foreach ( $vcs_dirs as $vcs_dir ) {
+ foreach ( $check_dirs as $check_dir ) {
+ if ( $checkout = @is_dir( rtrim( $check_dir, '\\/' ) . "/$vcs_dir" ) )
+ break 2;
+ }
+ }
+
+ /**
+ * Filter whether the automatic updater should consider a filesystem location to be potentially
+ * managed by a version control system.
+ *
+ * @since 3.7.0
+ *
+ * @param bool $checkout Whether a VCS checkout was discovered at $context or ABSPATH, or anywhere higher.
+ * @param string $context The filesystem context (a path) against which filesystem status should be checked.
+ */
+ return apply_filters( 'automatic_updates_is_vcs_checkout', $checkout, $context );
+ }
+
+ /**
+ * Tests to see if we can and should update a specific item.
+ *
+ * @since 3.7.0
+ *
+ * @param string $type The type of update being checked: 'core', 'theme', 'plugin', 'translation'.
+ * @param object $item The update offer.
+ * @param string $context The filesystem context (a path) against which filesystem access and status
+ * should be checked.
+ */
+ public function should_update( $type, $item, $context ) {
+ // Used to see if WP_Filesystem is set up to allow unattended updates.
+ $skin = new Automatic_Upgrader_Skin;
+
+ if ( $this->is_disabled() )
+ return false;
+
+ // If we can't do an auto core update, we may still be able to email the user.
+ if ( ! $skin->request_filesystem_credentials( false, $context ) || $this->is_vcs_checkout( $context ) ) {
+ if ( 'core' == $type )
+ $this->send_core_update_notification_email( $item );
+ return false;
+ }
+
+ // Next up, is this an item we can update?
+ if ( 'core' == $type )
+ $update = Core_Upgrader::should_update_to_version( $item->current );
+ else
+ $update = ! empty( $item->autoupdate );
+
+ /**
+ * Filter whether to automatically update core, a plugin, a theme, or a language.
+ *
+ * The dynamic portion of the hook name, $type, refers to the type of update
+ * being checked. Can be 'core', 'theme', 'plugin', or 'translation'.
+ *
+ * Generally speaking, plugins, themes, and major core versions are not updated by default,
+ * while translations and minor and development versions for core are updated by default.
+ *
+ * See the filters allow_dev_auto_core_updates, allow_minor_auto_core_updates, and
+ * allow_major_auto_core_updates more straightforward filters to adjust core updates.
+ *
+ * @since 3.7.0
+ *
+ * @param bool $update Whether to update.
+ * @param object $item The update offer.
+ */
+ $update = apply_filters( 'auto_update_' . $type, $update, $item );
+
+ if ( ! $update ) {
+ if ( 'core' == $type )
+ $this->send_core_update_notification_email( $item );
+ return false;
+ }
+
+ // If it's a core update, are we actually compatible with its requirements?
+ if ( 'core' == $type ) {
+ global $wpdb;
+
+ $php_compat = version_compare( phpversion(), $item->php_version, '>=' );
+ if ( file_exists( WP_CONTENT_DIR . '/db.php' ) && empty( $wpdb->is_mysql ) )
+ $mysql_compat = true;
+ else
+ $mysql_compat = version_compare( $wpdb->db_version(), $item->mysql_version, '>=' );
+
+ if ( ! $php_compat || ! $mysql_compat )
+ return false;
+ }
+
+ return true;
+ }
+
+ /**
+ * Notifies an administrator of a core update.
+ *
+ * @since 3.7.0
+ *
+ * @param object $item The update offer.
+ */
+ protected function send_core_update_notification_email( $item ) {
+ $notify = true;
+ $notified = get_site_option( 'auto_core_update_notified' );
+
+ // Don't notify if we've already notified the same email address of the same version.
+ if ( $notified && $notified['email'] == get_site_option( 'admin_email' ) && $notified['version'] == $item->current )
+ return false;
+
+ // See if we need to notify users of a core update.
+ $notify = ! empty( $item->notify_email );
+
+ /**
+ * Whether to notify the site administrator of a new core update.
+ *
+ * By default, administrators are notified when the update offer received from WordPress.org
+ * sets a particular flag. This allows for discretion in if and when to notify.
+ *
+ * This filter only fires once per release -- if the same email address was already
+ * notified of the same new version, we won't repeatedly email the administrator.
+ *
+ * This filter is also used on about.php to check if a plugin has disabled these notifications.
+ *
+ * @since 3.7.0
+ *
+ * @param bool $notify Whether the site administrator is notified.
+ * @param object $item The update offer.
+ */
+ if ( ! apply_filters( 'send_core_update_notification_email', $notify, $item ) )
+ return false;
+
+ $this->send_email( 'manual', $item );
+ return true;
+ }
+
+ /**
+ * Update an item, if appropriate.
+ *
+ * @since 3.7.0
+ *
+ * @param string $type The type of update being checked: 'core', 'theme', 'plugin', 'translation'.
+ * @param object $item The update offer.
+ */
+ public function update( $type, $item ) {
+ $skin = new Automatic_Upgrader_Skin;
+
+ switch ( $type ) {
+ case 'core':
+ // The Core upgrader doesn't use the Upgrader's skin during the actual main part of the upgrade, instead, firing a filter.
+ add_filter( 'update_feedback', array( $skin, 'feedback' ) );
+ $upgrader = new Core_Upgrader( $skin );
+ $context = ABSPATH;
+ break;
+ case 'plugin':
+ $upgrader = new Plugin_Upgrader( $skin );
+ $context = WP_PLUGIN_DIR; // We don't support custom Plugin directories, or updates for WPMU_PLUGIN_DIR
+ break;
+ case 'theme':
+ $upgrader = new Theme_Upgrader( $skin );
+ $context = get_theme_root( $item );
+ break;
+ case 'translation':
+ $upgrader = new Language_Pack_Upgrader( $skin );
+ $context = WP_CONTENT_DIR; // WP_LANG_DIR;
+ break;
+ }
+
+ // Determine whether we can and should perform this update.
+ if ( ! $this->should_update( $type, $item, $context ) )
+ return false;
+
+ switch ( $type ) {
+ case 'core':
+ $skin->feedback( __( 'Updating to WordPress %s' ), $item->version );
+ $item_name = sprintf( __( 'WordPress %s' ), $item->version );
+ break;
+ case 'theme':
+ $theme = wp_get_theme( $item );
+ $item_name = $theme->Get( 'Name' );
+ $skin->feedback( __( 'Updating theme: %s' ), $item_name );
+ break;
+ case 'plugin':
+ $plugin_data = get_plugin_data( $context . '/' . $item );
+ $item_name = $plugin_data['Name'];
+ $skin->feedback( __( 'Updating plugin: %s' ), $item_name );
+ break;
+ case 'translation':
+ $language_item_name = $upgrader->get_name_for_update( $item );
+ $item_name = sprintf( __( 'Translations for %s' ), $language_item_name );
+ $skin->feedback( sprintf( __( 'Updating translations for %1$s (%2$s)…' ), $language_item_name, $item->language ) );
+ break;
+ }
+
+ // Boom, This sites about to get a whole new splash of paint!
+ $upgrade_result = $upgrader->upgrade( $item, array(
+ 'clear_update_cache' => false,
+ 'pre_check_md5' => false, /* always use partial builds if possible for core updates */
+ 'attempt_rollback' => true, /* only available for core updates */
+ ) );
+
+ // Core doesn't output this, so lets append it so we don't get confused
+ if ( 'core' == $type ) {
+ if ( is_wp_error( $upgrade_result ) ) {
+ $skin->error( __( 'Installation Failed' ), $upgrade_result );
+ } else {
+ $skin->feedback( __( 'WordPress updated successfully' ) );
+ }
+ }
+
+ $this->update_results[ $type ][] = (object) array(
+ 'item' => $item,
+ 'result' => $upgrade_result,
+ 'name' => $item_name,
+ 'messages' => $skin->get_upgrade_messages()
+ );
+
+ return $upgrade_result;
+ }
+
+ /**
+ * Kicks off the background update process, looping through all pending updates.
+ *
+ * @since 3.7.0
+ */
+ public function run() {
+ global $wpdb, $wp_version;
+
+ if ( $this->is_disabled() )
+ return;
+
+ if ( ! is_main_network() || ! is_main_site() )
+ return;
+
+ $lock_name = 'auto_updater.lock';
+
+ // Try to lock
+ $lock_result = $wpdb->query( $wpdb->prepare( "INSERT IGNORE INTO `$wpdb->options` ( `option_name`, `option_value`, `autoload` ) VALUES (%s, %s, 'no') /* LOCK */", $lock_name, time() ) );
+
+ if ( ! $lock_result ) {
+ $lock_result = get_option( $lock_name );
+
+ // If we couldn't create a lock, and there isn't a lock, bail
+ if ( ! $lock_result )
+ return;
+
+ // Check to see if the lock is still valid
+ if ( $lock_result > ( time() - HOUR_IN_SECONDS ) )
+ return;
+ }
+
+ // Update the lock, as by this point we've definately got a lock, just need to fire the actions
+ update_option( $lock_name, time() );
+
+ // Don't automatically run these thins, as we'll handle it ourselves
+ remove_action( 'upgrader_process_complete', array( 'Language_Pack_Upgrader', 'async_upgrade' ), 20 );
+ remove_action( 'upgrader_process_complete', 'wp_version_check' );
+ remove_action( 'upgrader_process_complete', 'wp_update_plugins' );
+ remove_action( 'upgrader_process_complete', 'wp_update_themes' );
+
+ // Next, Plugins
+ wp_update_plugins(); // Check for Plugin updates
+ $plugin_updates = get_site_transient( 'update_plugins' );
+ if ( $plugin_updates && !empty( $plugin_updates->response ) ) {
+ foreach ( array_keys( $plugin_updates->response ) as $plugin ) {
+ $this->update( 'plugin', $plugin );
+ }
+ // Force refresh of plugin update information
+ wp_clean_plugins_cache();
+ }
+
+ // Next, those themes we all love
+ wp_update_themes(); // Check for Theme updates
+ $theme_updates = get_site_transient( 'update_themes' );
+ if ( $theme_updates && !empty( $theme_updates->response ) ) {
+ foreach ( array_keys( $theme_updates->response ) as $theme ) {
+ $this->update( 'theme', $theme );
+ }
+ // Force refresh of theme update information
+ wp_clean_themes_cache();
+ }
+
+ // Next, Process any core update
+ wp_version_check(); // Check for Core updates
+ $core_update = find_core_auto_update();
+
+ if ( $core_update )
+ $this->update( 'core', $core_update );
+
+ // Clean up, and check for any pending translations
+ // (Core_Upgrader checks for core updates)
+ wp_update_themes(); // Check for Theme updates
+ wp_update_plugins(); // Check for Plugin updates
+
+ // Finally, Process any new translations
+ $language_updates = wp_get_translation_updates();
+ if ( $language_updates ) {
+ foreach ( $language_updates as $update ) {
+ $this->update( 'translation', $update );
+ }
+
+ // Clear existing caches
+ wp_clean_plugins_cache();
+ wp_clean_themes_cache();
+ delete_site_transient( 'update_core' );
+
+ wp_version_check(); // check for Core updates
+ wp_update_themes(); // Check for Theme updates
+ wp_update_plugins(); // Check for Plugin updates
+ }
+
+ // Send debugging email to all development installs.
+ if ( ! empty( $this->update_results ) ) {
+ $development_version = false !== strpos( $wp_version, '-' );
+ /**
+ * Filter whether to send a debugging email for each automatic background update.
+ *
+ * @since 3.7.0
+ * @param bool $development_version By default, emails are sent if the install is a development version.
+ * Return false to avoid the email.
+ */
+ if ( apply_filters( 'automatic_updates_send_debug_email', $development_version ) )
+ $this->send_debug_email();
+
+ if ( ! empty( $this->update_results['core'] ) )
+ $this->after_core_update( $this->update_results['core'][0] );
+ }
+
+ // Clear the lock
+ delete_option( $lock_name );
+ }
+
+ /**
+ * If we tried to perform a core update, check if we should send an email,
+ * and if we need to avoid processing future updates.
+ *
+ * @param object $update_result The result of the core update. Includes the update offer and result.
+ */
+ protected function after_core_update( $update_result ) {
+ global $wp_version;
+
+ $core_update = $update_result->item;
+ $result = $update_result->result;
+
+ if ( ! is_wp_error( $result ) ) {
+ $this->send_email( 'success', $core_update );
+ return;
+ }
+
+ $error_code = $result->get_error_code();
+
+ // Any of these WP_Error codes are critical failures, as in they occurred after we started to copy core files.
+ // We should not try to perform a background update again until there is a successful one-click update performed by the user.
+ $critical = false;
+ if ( $error_code === 'disk_full' || false !== strpos( $error_code, '__copy_dir' ) ) {
+ $critical = true;
+ } elseif ( $error_code === 'rollback_was_required' && is_wp_error( $result->get_error_data()->rollback ) ) {
+ // A rollback is only critical if it failed too.
+ $critical = true;
+ $rollback_result = $result->get_error_data()->rollback;
+ } elseif ( false !== strpos( $error_code, 'do_rollback' ) ) {
+ $critical = true;
+ }
+
+ if ( $critical ) {
+ $critical_data = array(
+ 'attempted' => $core_update->current,
+ 'current' => $wp_version,
+ 'error_code' => $error_code,
+ 'error_data' => $result->get_error_data(),
+ 'timestamp' => time(),
+ 'critical' => true,
+ );
+ if ( isset( $rollback_result ) ) {
+ $critical_data['rollback_code'] = $rollback_result->get_error_code();
+ $critical_data['rollback_data'] = $rollback_result->get_error_data();
+ }
+ update_site_option( 'auto_core_update_failed', $critical_data );
+ $this->send_email( 'critical', $core_update, $result );
+ return;
+ }
+
+ /*
+ * Any other WP_Error code (like download_failed or files_not_writable) occurs before
+ * we tried to copy over core files. Thus, the failures are early and graceful.
+ *
+ * We should avoid trying to perform a background update again for the same version.
+ * But we can try again if another version is released.
+ *
+ * For certain 'transient' failures, like download_failed, we should allow retries.
+ * In fact, let's schedule a special update for an hour from now. (It's possible
+ * the issue could actually be on WordPress.org's side.) If that one fails, then email.
+ */
+ $send = true;
+ $transient_failures = array( 'incompatible_archive', 'download_failed', 'insane_distro' );
+ if ( in_array( $error_code, $transient_failures ) && ! get_site_option( 'auto_core_update_failed' ) ) {
+ wp_schedule_single_event( time() + HOUR_IN_SECONDS, 'wp_maybe_auto_update' );
+ $send = false;
+ }
+
+ $n = get_site_option( 'auto_core_update_notified' );
+ // Don't notify if we've already notified the same email address of the same version of the same notification type.
+ if ( $n && 'fail' == $n['type'] && $n['email'] == get_site_option( 'admin_email' ) && $n['version'] == $core_update->current )
+ $send = false;
+
+ update_site_option( 'auto_core_update_failed', array(
+ 'attempted' => $core_update->current,
+ 'current' => $wp_version,
+ 'error_code' => $error_code,
+ 'error_data' => $result->get_error_data(),
+ 'timestamp' => time(),
+ 'retry' => in_array( $error_code, $transient_failures ),
+ ) );
+
+ if ( $send )
+ $this->send_email( 'fail', $core_update, $result );
+ }
+
+ /**
+ * Sends an email upon the completion or failure of a background core update.
+ *
+ * @since 3.7.0
+ *
+ * @param string $type The type of email to send. Can be one of 'success', 'fail', 'manual', 'critical'.
+ * @param object $core_update The update offer that was attempted.
+ * @param mixed $result Optional. The result for the core update. Can be WP_Error.
+ */
+ protected function send_email( $type, $core_update, $result = null ) {
+ update_site_option( 'auto_core_update_notified', array(
+ 'type' => $type,
+ 'email' => get_site_option( 'admin_email' ),
+ 'version' => $core_update->current,
+ 'timestamp' => time(),
+ ) );
+
+ $next_user_core_update = get_preferred_from_update_core();
+ // If the update transient is empty, use the update we just performed
+ if ( ! $next_user_core_update )
+ $next_user_core_update = $core_update;
+ $newer_version_available = ( 'upgrade' == $next_user_core_update->response && version_compare( $next_user_core_update->version, $core_update->version, '>' ) );
+
+ /**
+ * Filter whether to send an email following an automatic background core update.
+ *
+ * @since 3.7.0
+ *
+ * @param bool $send Whether to send the email. Default true.
+ * @param string $type The type of email to send. Can be one of 'success', 'fail', 'critical'.
+ * @param object $core_update The update offer that was attempted.
+ * @param mixed $result The result for the core update. Can be WP_Error.
+ */
+ if ( 'manual' !== $type && ! apply_filters( 'auto_core_update_send_email', true, $type, $core_update, $result ) )
+ return;
+
+ switch ( $type ) {
+ case 'success' : // We updated.
+ /* translators: 1: Site name, 2: WordPress version number. */
+ $subject = __( '[%1$s] Your site has updated to WordPress %2$s' );
+ break;
+
+ case 'fail' : // We tried to update but couldn't.
+ case 'manual' : // We can't update (and made no attempt).
+ /* translators: 1: Site name, 2: WordPress version number. */
+ $subject = __( '[%1$s] WordPress %2$s is available. Please update!' );
+ break;
+
+ case 'critical' : // We tried to update, started to copy files, then things went wrong.
+ /* translators: 1: Site name. */
+ $subject = __( '[%1$s] URGENT: Your site may be down due to a failed update' );
+ break;
+
+ default :
+ return;
+ }
+
+ // If the auto update is not to the latest version, say that the current version of WP is available instead.
+ $version = 'success' === $type ? $core_update->current : $next_user_core_update->current;
+ $subject = sprintf( $subject, wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES ), $version );
+
+ $body = '';
+
+ switch ( $type ) {
+ case 'success' :
+ $body .= sprintf( __( 'Howdy! Your site at %1$s has been updated automatically to WordPress %2$s.' ), home_url(), $core_update->current );
+ $body .= "\n\n";
+ if ( ! $newer_version_available )
+ $body .= __( 'No further action is needed on your part.' ) . ' ';
+
+ // Can only reference the About screen if their update was successful.
+ list( $about_version ) = explode( '-', $core_update->current, 2 );
+ $body .= sprintf( __( "For more on version %s, see the About WordPress screen:" ), $about_version );
+ $body .= "\n" . admin_url( 'about.php' );
+
+ if ( $newer_version_available ) {
+ $body .= "\n\n" . sprintf( __( 'WordPress %s is also now available.' ), $next_user_core_update->current ) . ' ';
+ $body .= __( 'Updating is easy and only takes a few moments:' );
+ $body .= "\n" . network_admin_url( 'update-core.php' );
+ }
+
+ break;
+
+ case 'fail' :
+ case 'manual' :
+ $body .= sprintf( __( 'Please update your site at %1$s to WordPress %2$s.' ), home_url(), $next_user_core_update->current );
+
+ $body .= "\n\n";
+
+ // Don't show this message if there is a newer version available.
+ // Potential for confusion, and also not useful for them to know at this point.
+ if ( 'fail' == $type && ! $newer_version_available )
+ $body .= __( 'We tried but were unable to update your site automatically.' ) . ' ';
+
+ $body .= __( 'Updating is easy and only takes a few moments:' );
+ $body .= "\n" . network_admin_url( 'update-core.php' );
+ break;
+
+ case 'critical' :
+ if ( $newer_version_available )
+ $body .= sprintf( __( 'Your site at %1$s experienced a critical failure while trying to update WordPress to version %2$s.' ), home_url(), $core_update->current );
+ else
+ $body .= sprintf( __( 'Your site at %1$s experienced a critical failure while trying to update to the latest version of WordPress, %2$s.' ), home_url(), $core_update->current );
+
+ $body .= "\n\n" . __( "This means your site may be offline or broken. Don't panic; this can be fixed." );
+
+ $body .= "\n\n" . __( "Please check out your site now. It's possible that everything is working. If it says you need to update, you should do so:" );
+ $body .= "\n" . network_admin_url( 'update-core.php' );
+ break;
+ }
+
+ // Updates are important!
+ if ( $type != 'success' || $newer_version_available )
+ $body .= "\n\n" . __( 'Keeping your site updated is important for security. It also makes the internet a safer place for you and your readers.' );
+
+ // Add a note about the support forums to all emails.
+ $body .= "\n\n" . __( 'If you experience any issues or need support, the volunteers in the WordPress.org support forums may be able to help.' );
+ $body .= "\n" . __( 'http://wordpress.org/support/' );
+
+ // If things are successful and we're now on the latest, mention plugins and themes if any are out of date.
+ if ( $type == 'success' && ! $newer_version_available && ( get_plugin_updates() || get_theme_updates() ) ) {
+ $body .= "\n\n" . __( 'You also have some plugins or themes with updates available. Update them now:' );
+ $body .= "\n" . network_admin_url();
+ }
+
+ $body .= "\n\n" . __( 'The WordPress Team' ) . "\n";
+
+ if ( 'critical' == $type && is_wp_error( $result ) ) {
+ $body .= "\n***\n\n";
+ $body .= sprintf( __( 'Your site was running version %s.' ), $GLOBALS['wp_version'] );
+ $body .= ' ' . __( 'We have some data that describes the error your site encountered.' );
+ $body .= ' ' . __( 'Your hosting company, support forum volunteers, or a friendly developer may be able to use this information to help you:' );
+
+ // If we had a rollback and we're still critical, then the rollback failed too.
+ // Loop through all errors (the main WP_Error, the update result, the rollback result) for code, data, etc.
+ if ( 'rollback_was_required' == $result->get_error_code() )
+ $errors = array( $result, $result->get_error_data()->update, $result->get_error_data()->rollback );
+ else
+ $errors = array( $result );
+
+ foreach ( $errors as $error ) {
+ if ( ! is_wp_error( $error ) )
+ continue;
+ $error_code = $error->get_error_code();
+ $body .= "\n\n" . sprintf( __( "Error code: %s" ), $error_code );
+ if ( 'rollback_was_required' == $error_code )
+ continue;
+ if ( $error->get_error_message() )
+ $body .= "\n" . $error->get_error_message();
+ $error_data = $error->get_error_data();
+ if ( $error_data )
+ $body .= "\n" . implode( ', ', (array) $error_data );
+ }
+ $body .= "\n";
+ }
+
+ $to = get_site_option( 'admin_email' );
+ $headers = '';
+
+ $email = compact( 'to', 'subject', 'body', 'headers' );
+ /**
+ * Filter the email sent following an automatic background core update.
+ *
+ * @since 3.7.0
+ *
+ * @param array $email {
+ * Array of email arguments that will be passed to wp_mail().
+ *
+ * @type string $to The email recipient. An array of emails can be returned, as handled by wp_mail().
+ * @type string $subject The email's subject.
+ * @type string $body The email message body.
+ * @type string $headers Any email headers, defaults to no headers.
+ * }
+ * @param string $type The type of email being sent. Can be one of 'success', 'fail', 'manual', 'critical'.
+ * @param object $core_update The update offer that was attempted.
+ * @param mixed $result The result for the core update. Can be WP_Error.
+ */
+ $email = apply_filters( 'auto_core_update_email', $email, $type, $core_update, $result );
+
+ wp_mail( $email['to'], $email['subject'], $email['body'], $email['headers'] );
+ }
+
+ /**
+ * Prepares and sends an email of a full log of background update results, useful for debugging and geekery.
+ *
+ * @since 3.7.0
+ */
+ protected function send_debug_email() {
+ $update_count = 0;
+ foreach ( $this->update_results as $type => $updates )
+ $update_count += count( $updates );
+
+ $body = array();
+ $failures = 0;
+
+ $body[] = 'WordPress site: ' . network_home_url( '/' );
+
+ // Core
+ if ( isset( $this->update_results['core'] ) ) {
+ $result = $this->update_results['core'][0];
+ if ( $result->result && ! is_wp_error( $result->result ) ) {
+ $body[] = sprintf( 'SUCCESS: WordPress was successfully updated to %s', $result->name );
+ } else {
+ $body[] = sprintf( 'FAILED: WordPress failed to update to %s', $result->name );
+ $failures++;
+ }
+ $body[] = '';
+ }
+
+ // Plugins, Themes, Translations
+ foreach ( array( 'plugin', 'theme', 'translation' ) as $type ) {
+ if ( ! isset( $this->update_results[ $type ] ) )
+ continue;
+ $success_items = wp_list_filter( $this->update_results[ $type ], array( 'result' => true ) );
+ if ( $success_items ) {
+ $body[] = "The following {$type}s were successfully updated:";
+ foreach ( wp_list_pluck( $success_items, 'name' ) as $name )
+ $body[] = ' * SUCCESS: ' . $name;
+ }
+ if ( $success_items != $this->update_results[ $type ] ) {
+ // Failed updates
+ $body[] = "The following {$type}s failed to update:";
+ foreach ( $this->update_results[ $type ] as $item ) {
+ if ( ! $item->result || is_wp_error( $item->result ) ) {
+ $body[] = ' * FAILED: ' . $item->name;
+ $failures++;
+ }
+ }
+ }
+ $body[] = '';
+ }
+
+ if ( $failures ) {
+ $body[] = '';
+ $body[] = 'BETA TESTING?';
+ $body[] = '=============';
+ $body[] = '';
+ $body[] = 'This debugging email is sent when you are using a development version of WordPress.';
+ $body[] = '';
+ $body[] = 'If you think these failures might be due to a bug in WordPress, could you report it?';
+ $body[] = ' * Open a thread in the support forums: http://wordpress.org/support/forum/alphabeta';
+ $body[] = " * Or, if you're comfortable writing a bug report: http://core.trac.wordpress.org/";
+ $body[] = '';
+ $body[] = 'Thanks! -- The WordPress Team';
+ $body[] = '';
+ $subject = sprintf( '[%s] There were failures during background updates', get_bloginfo( 'name' ) );
+ } else {
+ $subject = sprintf( '[%s] Background updates have finished', get_bloginfo( 'name' ) );
+ }
+
+ $body[] = 'UPDATE LOG';
+ $body[] = '==========';
+ $body[] = '';
+
+ foreach ( array( 'core', 'plugin', 'theme', 'translation' ) as $type ) {
+ if ( ! isset( $this->update_results[ $type ] ) )
+ continue;
+ foreach ( $this->update_results[ $type ] as $update ) {
+ $body[] = $update->name;
+ $body[] = str_repeat( '-', strlen( $update->name ) );
+ foreach ( $update->messages as $message )
+ $body[] = " " . html_entity_decode( str_replace( '…', '...', $message ) );
+ if ( is_wp_error( $update->result ) ) {
+ $results = array( 'update' => $update->result );
+ // If we rolled back, we want to know an error that occurred then too.
+ if ( 'rollback_was_required' === $update->result->get_error_code() )
+ $results = (array) $update->result->get_error_data();
+ foreach ( $results as $result_type => $result ) {
+ if ( ! is_wp_error( $result ) )
+ continue;
+ $body[] = ' ' . ( 'rollback' === $result_type ? 'Rollback ' : '' ) . 'Error: [' . $result->get_error_code() . '] ' . $result->get_error_message();
+ if ( $result->get_error_data() )
+ $body[] = ' ' . implode( ', ', (array) $result->get_error_data() );
+ }
+ }
+ $body[] = '';
+ }
+ }
+
+ //echo "<h1>\n$subject\n</h1>\n";
+ //echo "<pre>\n" . implode( "\n", $body ) . "\n</pre>";
+
+ wp_mail( get_site_option( 'admin_email' ), $subject, implode( "\n", $body ) );
+ }
+}