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 = '';
$wp_filesystem->delete($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 %s…');
$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 %s…');
$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 %s…');
$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 %s…');
$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 */
$this->strings['process_success_specific'] = __('Successfully installed the theme %1$s %2$s.');
$this->strings['parent_theme_search'] = __('This theme requires a parent theme. Checking if it is installed…');
/* translators: 1: theme name, 2: version */
$this->strings['parent_theme_prepare_install'] = __('Preparing to install %1$s %2$s…');
/* translators: 1: theme name, 2: version */
$this->strings['parent_theme_currently_installed'] = __('The parent theme, %1$s %2$s, is currently installed.');
/* translators: 1: theme name, 2: version */
$this->strings['parent_theme_install_success'] = __('Successfully installed the parent theme, %1$s %2$s.');
$this->strings['parent_theme_not_found'] = __('The parent theme could not be found. You will need to install the parent theme, %s, before you can use this child theme.');
}
function check_parent_theme_filter($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 style.css 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 style.css 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 index.php 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 );
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 %s…' );
$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 .po or .mo 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 %s…');
$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;
$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', $this->strings['copy_failed'] );
}
$wp_filesystem->chmod($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 ) ) );
$result = new WP_Error( 'rollback_was_required', $this->strings['rollback_was_required'], array( 'rollback' => $rollback_result, 'update' => $result ) );
}
}
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;
// 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;
}
}
/**
* WordPress automatic background updater.
*
* @since 3.7.0
*/
class WP_Automatic_Updater {
protected $update_results = array();
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_UPDATES_DISABLED' ) && AUTOMATIC_UPDATES_DISABLED;
return apply_filters( 'automatic_updates_disabled', $disabled );
}
/**
* Check for GIT/SVN checkouts.
*/
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;
} while ( $context_dir != dirname( $context_dir ) && $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;
}
}
return apply_filters( 'automatic_updates_is_vcs_checkout', $checkout, $context );
}
/**
* Tests to see if we can and should update a specific item.
*/
function should_update( $type, $item, $context ) {
if ( $this->is_disabled() )
return false;
// Checks to see if WP_Filesystem is set up to allow unattended updates.
$skin = new Automatic_Upgrader_Skin;
if ( ! $skin->request_filesystem_credentials( false, $context ) )
return false;
if ( $this->is_vcs_checkout( $context ) )
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 );
// And does the user / plugins want it?
// Plugins may filter on 'auto_update_plugin', and check the 2nd param, $item, to only enable it for certain Plugins/Themes
if ( ! apply_filters( 'auto_update_' . $type, $update, $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;
}
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 'language':
$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 'language':
$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 a update request for each item in the update "queue".
*/
function run() {
global $wpdb;
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
$extra_update_stats = array();
$core_update = find_core_auto_update();
if ( $core_update ) {
$start_time = time();
$core_update_result = $this->update( 'core', $core_update );
delete_site_transient( 'update_core' );
$extra_update_stats['success'] = is_wp_error( $core_update_result ) ? $core_update_result->get_error_code() : true;
$extra_update_stats['error_data'] = is_wp_error( $core_update_result ) ? $core_update_result->get_error_data() : '';
if ( is_wp_error( $core_update_result ) && 'rollback_was_required' == $core_update_result->get_error_code() ) {
$rollback_data = $core_update_result->get_error_data();
$extra_update_stats['success'] = is_wp_error( $rollback_data['update'] ) ? $rollback_data['update']->get_error_code() : $rollback_data['update'];
$extra_update_stats['error_data'] = is_wp_error( $rollback_data['update'] ) ? $rollback_data['update']->get_error_data() : '';
$extra_update_stats['rollback'] = is_wp_error( $rollback_data['rollback'] ) ? $rollback_data['rollback']->get_error_code() : true; // If it's not a WP_Error, the rollback was successful.
$extra_update_stats['rollback_data'] = is_wp_error( $rollback_data['rollback'] ) ? $rollback_data['rollback']->get_error_data() : '';
}
$extra_update_stats['fs_method'] = $GLOBALS['wp_filesystem']->method;
$extra_update_stats['fs_method_forced'] = defined( 'FS_METHOD' ) || has_filter( 'filesystem_method' );
$extra_update_stats['time_taken'] = ( time() - $start_time );
$extra_update_stats['attempted'] = $core_update->version;
}
// Cleanup, and check for any pending translations
wp_version_check( $extra_update_stats ); // check 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( 'language', $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
}
$this->send_debug_email();
// Clear the lock
delete_option( $lock_name );
}
protected function send_email( $type, $core_update, $result = null ) {
if ( ! apply_filters( 'automatic_updates_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;
}
$subject = sprintf( $subject, wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES ), $core_update->current );
$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" . __( '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' );
break;
case 'fail' :
case 'manual' :
$body .= sprintf( __( 'Please update your site at %1$s to WordPress %2$s.' ), home_url(), $core_update->current );
$body .= "\n\n";
if ( 'fail' == $type )
$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' :
$body .= sprintf( __( 'Your site at %1$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' )
$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, mention plugins and themes if any are out of date.
if ( $type == 'success' && ( 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 .= __( '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:' );
$body .= "\n" . sprintf( __( "Error code: %s" ), $result->get_error_code() );
$body .= "\n" . $result->get_error_message();
$body .= "\n" . implode( ', ', (array) $result->get_error_data() );
$body .= "\n";
}
$to = get_site_option( 'admin_email' );
$headers = '';
$email = compact( 'to', 'body', 'subject', 'headers' );
$email = apply_filters( 'automatic_update_send_email', $email, $type, $core_update, $result );
wp_mail( $email['to'], $email['subject'], $email['body'], $email['headers'] );
}
protected function send_debug_email() {
if ( empty( $this->update_results ) )
return;
$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, Languages
foreach ( array( 'plugin', 'theme', 'language' ) 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[] = 'If you think these failures might be due to a bug in WordPress 3.7, 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', 'language' ) 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 ) ) {
$body[] = ' Error: [' . $update->result->get_error_code() . '] ' . $update->result->get_error_message();
if ( $update->result->get_error_data() )
$body[] = ' ' . implode( ', ', (array) $update->result->get_error_data() );
}
$body[] = '';
}
}
//echo "\n$subject\n
\n";
//echo "\n" . implode( "\n", $body ) . "\n
";
wp_mail( get_site_option( 'admin_email' ), $subject, implode( "\n", $body ) );
}
}