WordPress/wp-admin/includes/class-wp-upgrader.php

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<?php
/**
* Upgrade API: WP_Upgrader, Plugin_Upgrader, Theme_Upgrader, Language_Pack_Upgrader,
* Core_Upgrader, File_Upload_Upgrader, and WP_Automatic_Updater classes
*
* 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.
*
* @package WordPress
* @subpackage Upgrader
* @since 2.8.0
*/
require ABSPATH . 'wp-admin/includes/class-wp-upgrader-skins.php';
/**
* Core class used for upgrading/installing a local set of files via
* the Filesystem Abstraction classes from a Zip file.
*
* @since 2.8.0
*/
class WP_Upgrader {
/**
* The error/notification strings used to update the user on the progress.
*
* @since 2.8.0
* @access public
* @var string $strings
*/
public $strings = array();
/**
* The upgrader skin being used.
*
* @since 2.8.0
* @access public
* @var WP_Upgrader_Skin $skin
*/
public $skin = null;
/**
* The result of the installation.
*
* This is set by {@see WP_Upgrader::install_package()}, only when the package is installed
* successfully. It will then be an array, unless a {@see WP_Error} is returned by the
* {@see 'upgrader_post_install'} filter. In that case, the `WP_Error` will be assigned to
* it.
*
* @since 2.8.0
* @access public
*
* @var WP_Error|array $result {
* @type string $source The full path to the source the files were installed from.
* @type string $source_files List of all the files in the source directory.
* @type string $destination The full path to the install destination folder.
* @type string $destination_name The name of the destination folder, or empty if `$destination`
* and `$local_destination` are the same.
* @type string $local_destination The full local path to the destination folder. This is usually
* the same as `$destination`.
* @type string $remote_destination The full remote path to the destination folder
* (i.e., from `$wp_filesystem`).
* @type bool $clear_destination Whether the destination folder was cleared.
* }
*/
public $result = array();
/**
* The total number of updates being performed.
*
* Set by the bulk update methods.
*
* @since 3.0.0
* @access public
* @var int $update_count
*/
public $update_count = 0;
/**
* The current update if multiple updates are being performed.
*
* Used by the bulk update methods, and incremented for each update.
*
* @since 3.0.0
* @access public
* @var int
*/
public $update_current = 0;
/**
* Construct the upgrader with a skin.
*
* @since 2.8.0
* @access public
*
* @param WP_Upgrader_Skin $skin The upgrader skin to use. Default is a {@see WP_Upgrader_Skin}
* instance.
*/
public function __construct( $skin = null ) {
if ( null == $skin )
$this->skin = new WP_Upgrader_Skin();
else
$this->skin = $skin;
}
/**
* Initialize the upgrader.
*
* This will set the relationship between the skin being used and this upgrader,
* and also add the generic strings to `WP_Upgrader::$strings`.
*
* @since 2.8.0
* @access public
*/
public function init() {
$this->skin->set_upgrader($this);
$this->generic_strings();
}
/**
* Add the generic strings to WP_Upgrader::$strings.
*
* @since 2.8.0
* @access public
*/
public 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&#8230;');
$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['files_not_writable'] = __( 'The update cannot be installed because we will be unable to copy some files. This is usually due to inconsistent file permissions.' );
$this->strings['maintenance_start'] = __('Enabling Maintenance mode&#8230;');
$this->strings['maintenance_end'] = __('Disabling Maintenance mode&#8230;');
}
/**
* Connect to the filesystem.
*
* @since 2.8.0
* @access public
*
* @global WP_Filesystem_Base $wp_filesystem Subclass
*
* @param array $directories Optional. A list of directories. If any of these do
* not exist, a {@see WP_Error} object will be returned.
* Default empty array.
* @param bool $allow_relaxed_file_ownership Whether to allow relaxed file ownership.
* Default false.
* @return bool|WP_Error True if able to connect, false or a {@see WP_Error} otherwise.
*/
public function fs_connect( $directories = array(), $allow_relaxed_file_ownership = false ) {
global $wp_filesystem;
if ( false === ( $credentials = $this->skin->request_filesystem_credentials( false, $directories[0], $allow_relaxed_file_ownership ) ) ) {
return false;
}
if ( ! WP_Filesystem( $credentials, $directories[0], $allow_relaxed_file_ownership ) ) {
$error = true;
if ( is_object($wp_filesystem) && $wp_filesystem->errors->get_error_code() )
$error = $wp_filesystem->errors;
// Failed to connect, Error and request again
$this->skin->request_filesystem_credentials( $error, $directories[0], $allow_relaxed_file_ownership );
return false;
}
if ( ! is_object($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();
/**
* Download a package.
*
* @since 2.8.0
* @access public
*
* @param string $package The URI of the package. If this is the full path to an
* existing local file, it will be returned untouched.
* @return string|WP_Error The full path to the downloaded package file, or a {@see WP_Error} object.
*/
public function download_package( $package ) {
/**
* Filter whether to return the package.
*
* @since 3.7.0
* @access public
*
* @param bool $reply Whether to bail without returning the package.
* Default false.
* @param string $package The package file name.
* @param WP_Upgrader $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;
}
/**
* Unpack a compressed package file.
*
* @since 2.8.0
* @access public
*
* @global WP_Filesystem_Base $wp_filesystem Subclass
*
* @param string $package Full path to the package file.
* @param bool $delete_package Optional. Whether to delete the package file after attempting
* to unpack it. Default true.
* @return string|WP_Error The path to the unpacked contents, or a {@see WP_Error} on failure.
*/
public 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 - Strip off any .tmp or .zip suffixes
$working_dir = $upgrade_folder . basename( basename( $package, '.tmp' ), '.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;
}
/**
* Clears the directory where this item is going to be installed into.
*
* @since 4.3.0
* @access public
*
* @global WP_Filesystem_Base $wp_filesystem Subclass
*
* @param string $remote_destination The location on the remote filesystem to be cleared
* @return bool|WP_Error True upon success, WP_Error on failure.
*/
public function clear_destination( $remote_destination ) {
global $wp_filesystem;
if ( ! $wp_filesystem->exists( $remote_destination ) ) {
return true;
}
// Check all files are writable before attempting to clear the destination.
$unwritable_files = array();
$_files = $wp_filesystem->dirlist( $remote_destination, true, true );
// Flatten the resulting array, iterate using each as we append to the array during iteration.
while ( $f = each( $_files ) ) {
$file = $f['value'];
$name = $f['key'];
if ( ! isset( $file['files'] ) ) {
continue;
}
foreach ( $file['files'] as $filename => $details ) {
$_files[ $name . '/' . $filename ] = $details;
}
}
// Check writability.
foreach ( $_files as $filename => $file_details ) {
if ( ! $wp_filesystem->is_writable( $remote_destination . $filename ) ) {
// Attempt to alter permissions to allow writes and try again.
$wp_filesystem->chmod( $remote_destination . $filename, ( 'd' == $file_details['type'] ? FS_CHMOD_DIR : FS_CHMOD_FILE ) );
if ( ! $wp_filesystem->is_writable( $remote_destination . $filename ) ) {
$unwritable_files[] = $filename;
}
}
}
if ( ! empty( $unwritable_files ) ) {
return new WP_Error( 'files_not_writable', $this->strings['files_not_writable'], implode( ', ', $unwritable_files ) );
}
if ( ! $wp_filesystem->delete( $remote_destination, true ) ) {
return new WP_Error( 'remove_old_failed', $this->strings['remove_old_failed'] );
}
return true;
}
/**
* Install a package.
*
* Copies the contents of a package form a source directory, and installs them in
* a destination directory. Optionally removes the source. It can also optionally
* clear out the destination folder if it already exists.
*
* @since 2.8.0
* @access public
*
* @global WP_Filesystem_Base $wp_filesystem Subclass
* @global array $wp_theme_directories
*
* @param array|string $args {
* Optional. Array or string of arguments for installing a package. Default empty array.
*
* @type string $source Required path to the package source. Default empty.
* @type string $destination Required path to a folder to install the package in.
* Default empty.
* @type bool $clear_destination Whether to delete any files already in the destination
* folder. Default false.
* @type bool $clear_working Whether to delete the files form the working directory
* after copying to the destination. Default false.
* @type bool $abort_if_destination_exists Whether to abort the installation if
* the destination folder already exists. Default true.
* @type array $hook_extra Extra arguments to pass to the filter hooks called by
* {@see WP_Upgrader::install_package()}. Default empty array.
* }
*
* @return array|WP_Error The result (also stored in `WP_Upgrader:$result`), or a {@see WP_Error} on failure.
*/
public 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);
// These were previously extract()'d.
$source = $args['source'];
$destination = $args['destination'];
$clear_destination = $args['clear_destination'];
@set_time_limit( 300 );
if ( empty( $source ) || empty( $destination ) ) {
return new WP_Error( 'bad_request', $this->strings['bad_request'] );
}
$this->skin->feedback( 'installing_package' );
/**
* Filter the install response before the installation has started.
*
* Returning a truthy value, or one that could be evaluated as a WP_Error
* will effectively short-circuit the installation, returning that value
* instead.
*
* @since 2.8.0
*
* @param bool|WP_Error $response Response.
* @param array $hook_extra Extra arguments passed to hooked filters.
*/
$res = apply_filters( 'upgrader_pre_install', true, $args['hook_extra'] );
if ( is_wp_error( $res ) ) {
return $res;
}
//Retain the Original source and destinations
$remote_source = $args['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( $args['source'] ) . $source_files[0] . '/' ) ) { //Only one folder? Then we want its contents.
$source = trailingslashit( $args['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 folder name of this file as the destination folder. Folder name is based on zip filename.
$source = trailingslashit( $args['source'] );
}
/**
* Filter the source file location for the upgrade package.
*
* @since 2.8.0
* @since 4.4.0 The $hook_extra parameter became available.
*
* @param string $source File source location.
* @param string $remote_source Remote file source location.
* @param WP_Upgrader $this WP_Upgrader instance.
* @param array $hook_extra Extra arguments passed to hooked filters.
*/
$source = apply_filters( 'upgrader_source_selection', $source, $remote_source, $this, $args['hook_extra'] );
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 = $this->clear_destination( $remote_destination );
/**
* Filter whether the upgrader cleared the destination.
*
* @since 2.8.0
*
* @param mixed $removed Whether the destination was cleared. true on success, WP_Error on failure
* @param string $local_destination The local package destination.
* @param string $remote_destination The remote package destination.
* @param array $hook_extra Extra arguments passed to hooked filters.
*/
$removed = apply_filters( 'upgrader_clear_destination', $removed, $local_destination, $remote_destination, $args['hook_extra'] );
if ( is_wp_error( $removed ) ) {
return $removed;
}
} elseif ( $args['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 ( $args['clear_working'] ) {
$wp_filesystem->delete( $remote_source, true );
}
return $result;
}
//Clear the Working folder?
if ( $args['clear_working'] ) {
$wp_filesystem->delete( $remote_source, true );
}
$destination_name = basename( str_replace($local_destination, '', $destination) );
if ( '.' == $destination_name ) {
$destination_name = '';
}
$this->result = compact( 'source', 'source_files', 'destination', 'destination_name', 'local_destination', 'remote_destination', 'clear_destination' );
/**
* Filter the install response after the installation has finished.
*
* @since 2.8.0
*
* @param bool $response Install response.
* @param array $hook_extra Extra arguments passed to hooked filters.
* @param array $result Installation result data.
*/
$res = apply_filters( 'upgrader_post_install', true, $args['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;
}
/**
* Run an upgrade/install.
*
* Attempts to download the package (if it is not a local file), unpack it, and
* install it in the destination folder.
*
* @since 2.8.0
* @access public
*
* @param array $options {
* Array or string of arguments for upgrading/installing a package.
*
* @type string $package The full path or URI of the package to install.
* Default empty.
* @type string $destination The full path to the destination folder.
* Default empty.
* @type bool $clear_destination Whether to delete any files already in the
* destination folder. Default false.
* @type bool $clear_working Whether to delete the files form the working
* directory after copying to the destination.
* Default false.
* @type bool $abort_if_destination_exists Whether to abort the installation if the destination
* folder already exists. When true, `$clear_destination`
* should be false. Default true.
* @type bool $is_multi Whether this run is one of multiple upgrade/install
* actions being performed in bulk. When true, the skin
* {@see WP_Upgrader::header()} and {@see WP_Upgrader::footer()}
* aren't called. Default false.
* @type array $hook_extra Extra arguments to pass to the filter hooks called by
* {@see WP_Upgrader::run()}.
* }
* @return array|false|WP_error The result from self::install_package() on success, otherwise a WP_Error,
* or false if unable to connect to the filesystem.
*/
public 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 );
/**
* Filter the package options before running an update.
*
* @since 4.3.0
*
* @param array $options {
* Options used by the upgrader.
*
* @type string $package Package for update.
* @type string $destination Update location.
* @type bool $clear_destination Clear the destination resource.
* @type bool $clear_working Clear the working resource.
* @type bool $abort_if_destination_exists Abort if the Destination directory exists.
* @type bool $is_multi Whether the upgrader is running multiple times.
* @type array $hook_extra Extra hook arguments.
* }
*/
$options = apply_filters( 'upgrader_package_options', $options );
if ( ! $options['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, $options['destination'] ) );
// Mainly for non-connected filesystem.
if ( ! $res ) {
if ( ! $options['is_multi'] ) {
$this->skin->footer();
}
return false;
}
$this->skin->before();
if ( is_wp_error($res) ) {
$this->skin->error($res);
$this->skin->after();
if ( ! $options['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( $options['package'] );
if ( is_wp_error($download) ) {
$this->skin->error($download);
$this->skin->after();
if ( ! $options['is_multi'] ) {
$this->skin->footer();
}
return $download;
}
$delete_package = ( $download != $options['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 ( ! $options['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' => $options['destination'],
'clear_destination' => $options['clear_destination'],
'abort_if_destination_exists' => $options['abort_if_destination_exists'],
'clear_working' => $options['clear_working'],
'hook_extra' => $options['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 ( ! $options['is_multi'] ) {
/** This action is documented in wp-admin/includes/class-wp-upgrader.php */
do_action( 'upgrader_process_complete', $this, $options['hook_extra'] );
$this->skin->footer();
}
return $result;
}
/**
* Toggle maintenance mode for the site.
*
* Creates/deletes the maintenance file to enable/disable maintenance mode.
*
* @since 2.8.0
* @access public
*
* @global WP_Filesystem_Base $wp_filesystem Subclass
*
* @param bool $enable True to enable maintenance mode, false to disable.
*/
public 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);
} elseif ( ! $enable && $wp_filesystem->exists( $file ) ) {
$this->skin->feedback('maintenance_end');
$wp_filesystem->delete($file);
}
}
/**
* Create a Lock using WordPress options.
*
* @since 4.5.0
* @access public
* @static
*
* @param string $lock_name The name of this unique lock.
* @param int $release_timeout The duration in seconds to respect an existing lock. Default: 1 hour.
* @return bool
*/
public static function create_lock( $lock_name, $release_timeout = null ) {
global $wpdb;
if ( ! $release_timeout ) {
$release_timeout = HOUR_IN_SECONDS;
}
$lock_option = $lock_name . '.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_option, time() ) );
if ( ! $lock_result ) {
$lock_result = get_option( $lock_option );
// If we couldn't create a lock, and there isn't a lock, bail
if ( ! $lock_result ) {
return false;
}
// Check to see if the lock is still valid
if ( $lock_result > ( time() - $release_timeout ) ) {
return false;
}
// There must exist an expired lock, clear it and re-gain it.
WP_Upgrader::release_lock( $lock_name );
return WP_Upgrader::create_lock( $lock_name, $release_timeout );
}
// Update the lock, as by this point we've definitely got a lock, just need to fire the actions
update_option( $lock_option, time() );
return true;
}
/**
* Release a lock created by `WP_Upgrader::create_lock()`.
*
* @since 4.5.0
* @access public
* @static
*
* @param string $lock_name The name of this unique lock.
* @return bool
*/
public static function release_lock( $lock_name ) {
return delete_option( $lock_name . '.lock' );
}
}
/**
* Core class used for upgrading/installing plugins.
*
* It is designed to upgrade/install plugins from a local zip, remote zip URL,
* or uploaded zip file.
*
* @since 2.8.0
*
* @see WP_Upgrader
*/
class Plugin_Upgrader extends WP_Upgrader {
/**
* Plugin upgrade result.
*
* @since 2.8.0
* @access public
* @var array|WP_Error $result
*
* @see WP_Upgrader::$result
*/
public $result;
/**
* Whether a bulk upgrade/install is being performed.
*
* @since 2.9.0
* @access public
* @var bool $bulk
*/
public $bulk = false;
/**
* Initialize the upgrade strings.
*
* @since 2.8.0
* @access public
*/
public 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>&#8230;');
$this->strings['unpack_package'] = __('Unpacking the update&#8230;');
$this->strings['remove_old'] = __('Removing the old version of the plugin&#8230;');
$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.');
$this->strings['process_bulk_success'] = __('Plugins updated successfully.');
}
/**
* Initialize the install strings.
*
* @since 2.8.0
* @access public
*/
public function install_strings() {
$this->strings['no_package'] = __('Install package not available.');
$this->strings['downloading_package'] = __('Downloading install package from <span class="code">%s</span>&#8230;');
$this->strings['unpack_package'] = __('Unpacking the package&#8230;');
$this->strings['installing_package'] = __('Installing the plugin&#8230;');
$this->strings['no_files'] = __('The plugin contains no files.');
$this->strings['process_failed'] = __('Plugin install failed.');
$this->strings['process_success'] = __('Plugin installed successfully.');
}
/**
* Install a plugin package.
*
* @since 2.8.0
* @since 3.7.0 The `$args` parameter was added, making clearing the plugin update cache optional.
* @access public
*
* @param string $package The full local path or URI of the package.
* @param array $args {
* Optional. Other arguments for installing a plugin package. Default empty array.
*
* @type bool $clear_update_cache Whether to clear the plugin updates cache if successful.
* Default true.
* }
* @return bool|WP_Error True if the install was successful, false or a WP_Error otherwise.
*/
public 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') );
// Clear cache so wp_update_plugins() knows about the new plugin.
add_action( 'upgrader_process_complete', 'wp_clean_plugins_cache', 9, 0 );
$this->run( array(
'package' => $package,
'destination' => WP_PLUGIN_DIR,
'clear_destination' => false, // Do not overwrite files.
'clear_working' => true,
'hook_extra' => array(
'type' => 'plugin',
'action' => 'install',
)
) );
remove_action( 'upgrader_process_complete', 'wp_clean_plugins_cache', 9 );
remove_filter('upgrader_source_selection', array($this, 'check_package') );
if ( ! $this->result || is_wp_error($this->result) )
return $this->result;
// Force refresh of plugin update information
wp_clean_plugins_cache( $parsed_args['clear_update_cache'] );
return true;
}
/**
* Upgrade a plugin.
*
* @since 2.8.0
* @since 3.7.0 The `$args` parameter was added, making clearing the plugin update cache optional.
* @access public
*
* @param string $plugin The basename path to the main plugin file.
* @param array $args {
* Optional. Other arguments for upgrading a plugin package. Default empty array.
*
* @type bool $clear_update_cache Whether to clear the plugin updates cache if successful.
* Default true.
* }
* @return bool|WP_Error True if the upgrade was successful, false or a {@see WP_Error} object otherwise.
*/
public 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( $parsed_args['clear_update_cache'] );
return true;
}
/**
* Bulk upgrade several plugins at once.
*
* @since 2.8.0
* @since 3.7.0 The `$args` parameter was added, making clearing the plugin update cache optional.
* @access public
*
* @param array $plugins Array of the basename paths of the plugins' main files.
* @param array $args {
* Optional. Other arguments for upgrading several plugins at once. Default empty array.
*
* @type bool $clear_update_cache Whether to clear the plugin updates cache if successful.
* Default true.
* }
* @return array|false An array of results indexed by plugin file, or false if unable to connect to the filesystem.
*/
public 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('up_to_date');
$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);
/**
* Fires when the bulk upgrader process is complete.
*
* @since 3.6.0
*
* @param Plugin_Upgrader $this Plugin_Upgrader instance. In other contexts, $this, might
* be a Theme_Upgrader or Core_Upgrade instance.
* @param array $data {
* Array of bulk item update data.
*
* @type string $action Type of action. Default 'update'.
* @type string $type Type of update process. Accepts 'plugin', 'theme', or 'core'.
* @type bool $bulk Whether the update process is a bulk update. Default true.
* @type array $packages Array of plugin, theme, or core packages to update.
* }
*/
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;
}
/**
* Check a source package to be sure it contains a plugin.
*
* This function is added to the {@see 'upgrader_source_selection'} filter by
* {@see Plugin_Upgrader::install()}.
*
* @since 3.3.0
* @access public
*
* @global WP_Filesystem_Base $wp_filesystem Subclass
*
* @param string $source The path to the downloaded package source.
* @return string|WP_Error The source as passed, or a {@see WP_Error} object
* if no plugins were found.
*/
public function check_package($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, let's not prevent installation.
return $source;
// Check the folder contains at least 1 valid plugin.
$plugins_found = false;
$files = glob( $working_directory . '*.php' );
if ( $files ) {
foreach ( $files 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 $source;
}
/**
* Retrieve the path to the file that contains the plugin info.
*
* This isn't used internally in the class, but is called by the skins.
*
* @since 2.8.0
* @access public
*
* @return string|false The full path to the main plugin file, or false.
*/
public function plugin_info() {
if ( ! is_array($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];
}
/**
* Deactivates a plugin before it is upgraded.
*
* Hooked to the {@see 'upgrader_pre_install'} filter by {@see Plugin_Upgrader::upgrade()}.
*
* @since 2.8.0
* @since 4.1.0 Added a return value.
* @access public
*
* @param bool|WP_Error $return Upgrade offer return.
* @param array $plugin Plugin package arguments.
* @return bool|WP_Error The passed in $return param or {@see WP_Error}.
*/
public function deactivate_plugin_before_upgrade($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);
}
return $return;
}
/**
* Delete the old plugin during an upgrade.
*
* Hooked to the {@see 'upgrader_clear_destination'} filter by
* {@see Plugin_Upgrader::upgrade()} and {@see Plugin_Upgrader::bulk_upgrade()}.
*
* @since 2.8.0
* @access public
*
* @global WP_Filesystem_Base $wp_filesystem Subclass
*
* @param bool|WP_Error $removed
* @param string $local_destination
* @param string $remote_destination
* @param array $plugin
* @return WP_Error|bool
*/
public function delete_old_plugin($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;
}
}
/**
* Core class used for upgrading/installing themes.
*
* It is designed to upgrade/install themes from a local zip, remote zip URL,
* or uploaded zip file.
*
* @since 2.8.0
*
* @see WP_Upgrader
*/
class Theme_Upgrader extends WP_Upgrader {
/**
* Result of the theme upgrade offer.
*
* @since 2.8.0
* @access public
* @var array|WP_Error $result
* @see WP_Upgrader::$result
*/
public $result;
/**
* Whether multiple themes are being upgraded/installed in bulk.
*
* @since 2.9.0
* @access public
* @var bool $bulk
*/
public $bulk = false;
/**
* Initialize the upgrade strings.
*
* @since 2.8.0
* @access public
*/
public 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>&#8230;');
$this->strings['unpack_package'] = __('Unpacking the update&#8230;');
$this->strings['remove_old'] = __('Removing the old version of the theme&#8230;');
$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.');
}
/**
* Initialize the install strings.
*
* @since 2.8.0
* @access public
*/
public function install_strings() {
$this->strings['no_package'] = __('Install package not available.');
$this->strings['downloading_package'] = __('Downloading install package from <span class="code">%s</span>&#8230;');
$this->strings['unpack_package'] = __('Unpacking the package&#8230;');
$this->strings['installing_package'] = __('Installing the theme&#8230;');
$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&#8230;');
/* translators: 1: theme name, 2: version */
$this->strings['parent_theme_prepare_install'] = __('Preparing to install <strong>%1$s %2$s</strong>&#8230;');
/* 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.');
}
/**
* Check if a child theme is being installed and we need to install its parent.
*
* Hooked to the {@see 'upgrader_post_install'} filter by {@see Theme_Upgrader::install()}.
*
* @since 3.4.0
* @access public
*
* @param bool $install_result
* @param array $hook_extra
* @param array $child_result
* @return type
*/
public 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, let's 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;
}
/**
* Don't display the activate and preview actions to the user.
*
* Hooked to the {@see 'install_theme_complete_actions'} filter by
* {@see Theme_Upgrader::check_parent_theme_filter()} when installing
* a child theme and installing the parent theme fails.
*
* @since 3.4.0
* @access public
*
* @param array $actions Preview actions.
* @return array
*/
public function hide_activate_preview_actions( $actions ) {
unset($actions['activate'], $actions['preview']);
return $actions;
}
/**
* Install a theme package.
*
* @since 2.8.0
* @since 3.7.0 The `$args` parameter was added, making clearing the update cache optional.
* @access public
*
* @param string $package The full local path or URI of the package.
* @param array $args {
* Optional. Other arguments for installing a theme package. Default empty array.
*
* @type bool $clear_update_cache Whether to clear the updates cache if successful.
* Default true.
* }
*
* @return bool|WP_Error True if the install was successful, false or a {@see WP_Error} object otherwise.
*/
public 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);
// Clear cache so wp_update_themes() knows about the new theme.
add_action( 'upgrader_process_complete', 'wp_clean_themes_cache', 9, 0 );
$this->run( array(
'package' => $package,
'destination' => get_theme_root(),
'clear_destination' => false, //Do not overwrite files.
'clear_working' => true,
'hook_extra' => array(
'type' => 'theme',
'action' => 'install',
),
) );
remove_action( 'upgrader_process_complete', 'wp_clean_themes_cache', 9 );
remove_filter('upgrader_source_selection', array($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( $parsed_args['clear_update_cache'] );
return true;
}
/**
* Upgrade a theme.
*
* @since 2.8.0
* @since 3.7.0 The `$args` parameter was added, making clearing the update cache optional.
* @access public
*
* @param string $theme The theme slug.
* @param array $args {
* Optional. Other arguments for upgrading a theme. Default empty array.
*
* @type bool $clear_update_cache Whether to clear the update cache if successful.
* Default true.
* }
* @return bool|WP_Error True if the upgrade was successful, false or a {@see WP_Error} object otherwise.
*/
public 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( $parsed_args['clear_update_cache'] );
return true;
}
/**
* Upgrade several themes at once.
*
* @since 3.0.0
* @since 3.7.0 The `$args` parameter was added, making clearing the update cache optional.
* @access public
*
* @param array $themes The theme slugs.
* @param array $args {
* Optional. Other arguments for upgrading several themes at once. Default empty array.
*
* @type bool $clear_update_cache Whether to clear the update cache if successful.
* Default true.
* }
* @return array[]|false An array of results, or false if unable to connect to the filesystem.
*/
public 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,
'is_multi' => 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);
/** This action is documented in wp-admin/includes/class-wp-upgrader.php */
do_action( 'upgrader_process_complete', $this, array(
'action' => 'update',
'type' => 'theme',
'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;
}
/**
* Check that the package source contains a valid theme.
*
* Hooked to the {@see 'upgrader_source_selection'} filter by {@see Theme_Upgrader::install()}.
* It will return an error if the theme doesn't have style.css or index.php
* files.
*
* @since 3.3.0
* @access public
*
* @global WP_Filesystem_Base $wp_filesystem Subclass
*
* @param string $source The full path to the package source.
* @return string|WP_Error The source or a WP_Error.
*/
public 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, let's 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'],
/* translators: %s: style.css */
sprintf( __( 'The theme is missing the %s stylesheet.' ),
'<code>style.css</code>'
)
);
}
$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'],
/* translators: %s: style.css */
sprintf( __( 'The %s stylesheet doesn&#8217;t contain a valid theme header.' ),
'<code>style.css</code>'
)
);
}
// 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'],
/* translators: %s: index.php */
sprintf( __( 'The theme is missing the %s file.' ),
'<code>index.php</code>'
)
);
}
return $source;
}
/**
* Turn on maintenance mode before attempting to upgrade the current theme.
*
* Hooked to the {@see 'upgrader_pre_install'} filter by {@see Theme_Upgrader::upgrade()} and
* {@see Theme_Upgrader::bulk_upgrade()}.
*
* @since 2.8.0
* @access public
*
* @param bool|WP_Error $return
* @param array $theme
* @return bool|WP_Error
*/
public function current_before($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;
}
/**
* Turn off maintenance mode after upgrading the current theme.
*
* Hooked to the {@see 'upgrader_post_install'} filter by {@see Theme_Upgrader::upgrade()}
* and {@see Theme_Upgrader::bulk_upgrade()}.
*
* @since 2.8.0
* @access public
*
* @param bool|WP_Error $return
* @param array $theme
* @return bool|WP_Error
*/
public function current_after($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;
}
/**
* Delete the old theme during an upgrade.
*
* Hooked to the {@see 'upgrader_clear_destination'} filter by {@see Theme_Upgrader::upgrade()}
* and {@see Theme_Upgrader::bulk_upgrade()}.
*
* @since 2.8.0
* @access public
*
* @global WP_Filesystem_Base $wp_filesystem Subclass
*
* @param bool $removed
* @param string $local_destination
* @param string $remote_destination
* @param array $theme
* @return bool
*/
public 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 . $theme, true ) )
return false;
}
return true;
}
/**
* Get the WP_Theme object for a theme.
*
* @since 2.8.0
* @since 3.0.0 The `$theme` argument was added.
* @access public
*
* @param string $theme The directory name of the theme. This is optional, and if not supplied,
* the directory name from the last result will be used.
* @return WP_Theme|false The theme's info object, or false `$theme` is not supplied
* and the last result isn't set.
*/
public 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 );
}
}
/**
* Core class used for updating/installing language packs (translations)
* for plugins, themes, and core.
*
* @since 3.7.0
*
* @see WP_Upgrader
*/
class Language_Pack_Upgrader extends WP_Upgrader {
/**
* Result of the language pack upgrade.
*
* @since 3.7.0
* @access public
* @var array|WP_Error $result
* @see WP_Upgrader::$result
*/
public $result;
/**
* Whether a bulk upgrade/install is being performed.
*
* @since 3.7.0
* @access public
* @var bool $bulk
*/
public $bulk = true;
/**
* Asynchronously upgrades language packs after other upgrades have been made.
*
* Hooked to the {@see 'upgrader_process_complete'} action by default.
*
* @since 3.7.0
* @access public
* @static
*
* @param false|WP_Upgrader $upgrader Optional. WP_Upgrader instance or false. If `$upgrader` is
* a Language_Pack_Upgrader instance, the method will bail to
* avoid recursion. Otherwise unused. Default false.
*/
public 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;
}
/*
* Avoid messing with VCS installs, at least for now.
* Noted: this is not the ideal way to accomplish this.
*/
$check_vcs = new WP_Automatic_Updater;
if ( $check_vcs->is_vcs_checkout( WP_CONTENT_DIR ) ) {
return;
}
foreach ( $language_updates as $key => $language_update ) {
$update = ! empty( $language_update->autoupdate );
/**
* Filter whether to asynchronously update translation for core, a plugin, or a theme.
*
* @since 4.0.0
*
* @param bool $update Whether to update.
* @param object $language_update The update offer.
*/
$update = apply_filters( 'async_update_translation', $update, $language_update );
if ( ! $update ) {
unset( $language_updates[ $key ] );
}
}
if ( empty( $language_updates ) ) {
return;
}
// Re-use the automatic upgrader skin if the parent upgrader is using it.
if ( $upgrader && $upgrader->skin instanceof Automatic_Upgrader_Skin ) {
$skin = $upgrader->skin;
} else {
$skin = new Language_Pack_Upgrader_Skin( array(
'skip_header_footer' => true,
) );
}
$lp_upgrader = new Language_Pack_Upgrader( $skin );
$lp_upgrader->bulk_upgrade( $language_updates );
}
/**
* Initialize the upgrade strings.
*
* @since 3.7.0
* @access public
*/
public 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>&#8230;' );
$this->strings['unpack_package'] = __( 'Unpacking the update&#8230;' );
$this->strings['process_failed'] = __( 'Translation update failed.' );
$this->strings['process_success'] = __( 'Translation updated successfully.' );
}
/**
* Upgrade a language pack.
*
* @since 3.7.0
* @access public
*
* @param string|false $update Optional. Whether an update offer is available. Default false.
* @param array $args Optional. Other optional arguments, see
* {@see Language_Pack_Upgrader::bulk_upgrade()}. Default empty array.
* @return array|bool|WP_Error The result of the upgrade, or a {@see wP_Error} object instead.
*/
public function upgrade( $update = false, $args = array() ) {
if ( $update ) {
$update = array( $update );
}
$results = $this->bulk_upgrade( $update, $args );
if ( ! is_array( $results ) ) {
return $results;
}
return $results[0];
}
/**
* Bulk upgrade language packs.
*
* @since 3.7.0
* @access public
*
* @global WP_Filesystem_Base $wp_filesystem Subclass
*
* @param array $language_updates Optional. Language pack updates. Default empty array.
* @param array $args {
* Optional. Other arguments for upgrading multiple language packs. Default empty array
*
* @type bool $clear_update_cache Whether to clear the update cache when done.
* Default true.
* }
* @return array|bool|WP_Error Will return an array of results, or true if there are no updates,
* false or WP_Error for initial errors.
*/
public 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' );
// Remove any existing upgrade filters from the plugin/theme upgraders #WP29425 & #WP29230
remove_all_filters( 'upgrader_pre_install' );
remove_all_filters( 'upgrader_clear_destination' );
remove_all_filters( 'upgrader_post_install' );
remove_all_filters( 'upgrader_source_selection' );
add_filter( 'upgrader_source_selection', array( $this, 'check_package' ), 10, 2 );
$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' ) );
if ( $parsed_args['clear_update_cache'] ) {
wp_clean_update_cache();
}
return $results;
}
/**
* Check the package source to make sure there are .mo and .po files.
*
* Hooked to the {@see 'upgrader_source_selection'} filter by
* {@see Language_Pack_Upgrader::bulk_upgrade()}.
*
* @since 3.7.0
* @access public
*
* @global WP_Filesystem_Base $wp_filesystem Subclass
*
* @param string|WP_Error $source
* @param string $remote_source
*/
public 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', $this->strings['incompatible_archive'],
/* translators: 1: .po 2: .mo */
sprintf( __( 'The language pack is missing either the %1$s or %2$s files.' ),
'<code>.po</code>',
'<code>.mo</code>'
)
);
}
return $source;
}
/**
* Get the name of an item being updated.
*
* @since 3.7.0
* @access public
*
* @param object $update The data for an update.
* @return string The name of the item being updated.
*/
public function get_name_for_update( $update ) {
switch ( $update->type ) {
case 'core':
return 'WordPress'; // Not translated
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 = reset( $plugin_data );
if ( $plugin_data )
return $plugin_data['Name'];
break;
}
return '';
}
}
/**
* Core class used for updating core.
*
* It allows for WordPress to upgrade itself in combination with
* the wp-admin/includes/update-core.php file.
*
* @since 2.8.0
*
* @see WP_Upgrader
*/
class Core_Upgrader extends WP_Upgrader {
/**
* Initialize the upgrade strings.
*
* @since 2.8.0
* @access public
*/
public function upgrade_strings() {
$this->strings['up_to_date'] = __('WordPress is at the latest version.');
$this->strings['locked'] = __('Another update is currently in progress.');
$this->strings['no_package'] = __('Update package not available.');
$this->strings['downloading_package'] = __('Downloading update from <span class="code">%s</span>&#8230;');
$this->strings['unpack_package'] = __('Unpacking the update&#8230;');
$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.' );
}
/**
* Upgrade WordPress core.
*
* @since 2.8.0
* @access public
*
* @global WP_Filesystem_Base $wp_filesystem Subclass
* @global callable $_wp_filesystem_direct_method
*
* @param object $current Response object for whether WordPress is current.
* @param array $args {
* Optional. Arguments for upgrading WordPress core. Default empty array.
*
* @type bool $pre_check_md5 Whether to check the file checksums before
* attempting the upgrade. Default true.
* @type bool $attempt_rollback Whether to attempt to rollback the chances if
* there is a problem. Default false.
* @type bool $do_rollback Whether to perform this "upgrade" as a rollback.
* Default false.
* }
* @return null|false|WP_Error False or WP_Error on failure, null on success.
*/
public function upgrade( $current, $args = array() ) {
global $wp_filesystem;
include( ABSPATH . WPINC . '/version.php' ); // $wp_version;
$start_time = time();
$defaults = array(
'pre_check_md5' => true,
'attempt_rollback' => false,
'do_rollback' => false,
'allow_relaxed_file_ownership' => 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 ), $parsed_args['allow_relaxed_file_ownership'] );
if ( ! $res || 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';
// Lock to prevent multiple Core Updates occuring
$lock = WP_Upgrader::create_lock( 'core_updater', 15 * MINUTE_IN_SECONDS );
if ( ! $lock ) {
return new WP_Error( 'locked', $this->strings['locked'] );
}
$download = $this->download_package( $current->packages->$to_download );
if ( is_wp_error( $download ) ) {
WP_Upgrader::release_lock( 'core_updater' );
return $download;
}
$working_dir = $this->unpack_package( $download );
if ( is_wp_error( $working_dir ) ) {
WP_Upgrader::release_lock( 'core_updater' );
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);
WP_Upgrader::release_lock( 'core_updater' );
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' ) ) {
WP_Upgrader::release_lock( 'core_updater' );
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 ) {
/** This filter is documented in wp-admin/includes/update-core.php */
apply_filters( 'update_feedback', $result );
/** This filter is documented in wp-admin/includes/update-core.php */
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 ) );
}
}
/** This action is documented in wp-admin/includes/class-wp-upgrader.php */
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' ),
'fs_method_direct' => !empty( $GLOBALS['_wp_filesystem_direct_method'] ) ? $GLOBALS['_wp_filesystem_direct_method'] : '',
'time_taken' => time() - $start_time,
'reported' => $wp_version,
'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 );
}
WP_Upgrader::release_lock( 'core_updater' );
return $result;
}
/**
* Determines if this WordPress Core version should update to an offered version or not.
*
* @since 3.7.0
* @access public
*
* @static
*
* @param string $offered_ver The offered version, of the format x.y.z.
* @return bool True if we should update to the offered version, otherwise false.
*/
public static function should_update_to_version( $offered_ver ) {
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 ) {
/**
* Filter whether to enable automatic core updates for development versions.
*
* @since 3.7.0
*
* @param bool $upgrade_dev Whether to enable automatic updates for
* development versions.
*/
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 ) {
/**
* Filter whether to enable minor automatic core updates.
*
* @since 3.7.0
*
* @param bool $upgrade_minor Whether to enable minor automatic core updates.
*/
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, '>' ) ) {
/**
* Filter whether to enable major automatic core updates.
*
* @since 3.7.0
*
* @param bool $upgrade_major Whether to enable major automatic core updates.
*/
return apply_filters( 'allow_major_auto_core_updates', $upgrade_major );
}
// If we're not sure, we don't want it
return false;
}
/**
* Compare the disk file checksums against the expected checksums.
*
* @since 3.7.0
* @access public
*
* @global string $wp_version
* @global string $wp_local_package
*
* @return bool True if the checksums match, otherwise false.
*/
public 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;
}
}
/**
* Core class used for handling file uploads.
*
* This class handles the upload process and passes it as if it's a local file
* to the Upgrade/Installer functions.
*
* @since 2.8.0
*/
class File_Upload_Upgrader {
/**
* The full path to the file package.
*
* @since 2.8.0
* @access public
* @var string $package
*/
public $package;
/**
* The name of the file.
*
* @since 2.8.0
* @access public
* @var string $filename
*/
public $filename;
/**
* The ID of the attachment post for this file.
*
* @since 3.3.0
* @access public
* @var int $id
*/
public $id = 0;
/**
* Construct the upgrader for a form.
*
* @since 2.8.0
* @access public
*
* @param string $form The name of the form the file was uploaded from.
* @param string $urlholder The name of the `GET` parameter that holds the filename.
*/
public 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() + 2 * HOUR_IN_SECONDS, '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;
}
}
/**
* Delete the attachment/uploaded file.
*
* @since 3.2.2
* @access public
*
* @return bool Whether the cleanup was successful.
*/
public function cleanup() {
if ( $this->id )
wp_delete_attachment( $this->id );
elseif ( file_exists( $this->package ) )
return @unlink( $this->package );
return true;
}
}
/**
* Core class used for handling automatic background updates.
*
* @since 3.7.0
*/
class WP_Automatic_Updater {
/**
* Tracks update results during processing.
*
* @var array
* @access protected
*/
protected $update_results = array();
/**
* Whether the entire automatic updater is disabled.
*
* @since 3.7.0
* @access public
*/
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;
Use `wp_installing()` instead of `WP_INSTALLING` constant. The `WP_INSTALLING` constant is a flag that WordPress sets in a number of places, telling the system that options should be fetched directly from the database instead of from the cache, that WP should not ping wordpress.org for updates, that the normal "not installed" checks should be bypassed, and so on. A constant is generally necessary for this purpose, because the flag is typically set before the WP bootstrap, meaning that WP functions are not yet available. However, it is possible - notably, during `wpmu_create_blog()` - for the "installing" flag to be set after WP has already loaded. In these cases, `WP_INSTALLING` would be set for the remainder of the process, since there's no way to change a constant once it's defined. This, in turn, polluted later function calls that ought to have been outside the scope of site creation, particularly the non-caching of option data. The problem was particularly evident in the case of the automated tests, where `WP_INSTALLING` was set the first time a site was created, and remained set for the rest of the suite. The new `wp_installing()` function allows developers to fetch the current installation status (when called without any arguments) or to set the installation status (when called with a boolean `true` or `false`). Use of the `WP_INSTALLING` constant is still supported; `wp_installing()` will default to `true` if the constant is defined during the bootstrap. Props boonebgorges, jeremyfelt. See #31130. Built from https://develop.svn.wordpress.org/trunk@34828 git-svn-id: http://core.svn.wordpress.org/trunk@34793 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2015-10-05 17:06:28 +02:00
if ( 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
* @access public
*
* @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
* @access public
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @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;
// Only relax the filesystem checks when the update doesn't include new files
$allow_relaxed_file_ownership = false;
if ( 'core' == $type && isset( $item->new_files ) && ! $item->new_files ) {
$allow_relaxed_file_ownership = true;
}
// 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, $allow_relaxed_file_ownership ) || $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 {@see 'allow_dev_auto_core_updates', {@see 'allow_minor_auto_core_updates'},
* and {@see 'allow_major_auto_core_updates'} filters for a more straightforward way 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
* @access protected
*
* @param object $item The update offer.
*/
protected function send_core_update_notification_email( $item ) {
$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 );
/**
* Filter 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 some discretion
* in if and when to notify.
*
* This filter is only evaluated once per release. If the same email address
* was already notified of the same new version, WordPress 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
* @access public
*
* @param string $type The type of update being checked: 'core', 'theme', 'plugin', 'translation'.
* @param object $item The update offer.
*
* @return null|WP_Error
*/
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->theme );
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;
/**
* Fires immediately prior to an auto-update.
*
* @since 4.4.0
*
* @param string $type The type of update being checked: 'core', 'theme', 'plugin', or 'translation'.
* @param object $item The update offer.
* @param string $context The filesystem context (a path) against which filesystem access and status
* should be checked.
*/
do_action( 'pre_auto_update', $type, $item, $context );
$upgrader_item = $item;
switch ( $type ) {
case 'core':
$skin->feedback( __( 'Updating to WordPress %s' ), $item->version );
$item_name = sprintf( __( 'WordPress %s' ), $item->version );
break;
case 'theme':
$upgrader_item = $item->theme;
$theme = wp_get_theme( $upgrader_item );
$item_name = $theme->Get( 'Name' );
$skin->feedback( __( 'Updating theme: %s' ), $item_name );
break;
case 'plugin':
$upgrader_item = $item->plugin;
$plugin_data = get_plugin_data( $context . '/' . $upgrader_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)&#8230;' ), $language_item_name, $item->language ) );
break;
}
$allow_relaxed_file_ownership = false;
if ( 'core' == $type && isset( $item->new_files ) && ! $item->new_files ) {
$allow_relaxed_file_ownership = true;
}
// Boom, This sites about to get a whole new splash of paint!
$upgrade_result = $upgrader->upgrade( $upgrader_item, array(
'clear_update_cache' => false,
// Always use partial builds if possible for core updates.
'pre_check_md5' => false,
// Only available for core updates.
'attempt_rollback' => true,
// Allow relaxed file ownership in some scenarios
'allow_relaxed_file_ownership' => $allow_relaxed_file_ownership,
) );
// If the filesystem is unavailable, false is returned.
if ( false === $upgrade_result ) {
$upgrade_result = new WP_Error( 'fs_unavailable', __( 'Could not access filesystem.' ) );
}
if ( 'core' == $type ) {
if ( is_wp_error( $upgrade_result ) && ( 'up_to_date' == $upgrade_result->get_error_code() || 'locked' == $upgrade_result->get_error_code() ) ) {
// These aren't actual errors, treat it as a skipped-update instead to avoid triggering the post-core update failure routines.
return false;
}
// Core doesn't output this, so let's append it so we don't get confused.
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
* @access public
*
* @global wpdb $wpdb
* @global string $wp_version
*/
public function run() {
global $wpdb, $wp_version;
if ( $this->is_disabled() )
return;
if ( ! is_main_network() || ! is_main_site() )
return;
if ( ! WP_Upgrader::create_lock( 'auto_updater' ) )
return;
// 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 ( $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 ( $theme_updates->response as $theme ) {
$this->update( 'theme', (object) $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)
$theme_stats = array();
if ( isset( $this->update_results['theme'] ) ) {
foreach ( $this->update_results['theme'] as $upgrade ) {
$theme_stats[ $upgrade->item->theme ] = ( true === $upgrade->result );
}
}
wp_update_themes( $theme_stats ); // Check for Theme updates
$plugin_stats = array();
if ( isset( $this->update_results['plugin'] ) ) {
foreach ( $this->update_results['plugin'] as $upgrade ) {
$plugin_stats[ $upgrade->item->plugin ] = ( true === $upgrade->result );
}
}
wp_update_plugins( $plugin_stats ); // 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_update_cache();
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] );
/**
* Fires after all automatic updates have run.
*
* @since 3.8.0
*
* @param array $update_results The results of all attempted updates.
*/
do_action( 'automatic_updates_complete', $this->update_results );
}
WP_Upgrader::release_lock( 'auto_updater' );
}
/**
* If we tried to perform a core update, check if we should send an email,
* and if we need to avoid processing future updates.
*
* @since Unknown
* @access protected
*
* @global string $wp_version
*
* @param object|WP_Error $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', 'locked' );
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
* @access protected
*
* @global string $wp_version
*
* @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;
}
$critical_support = 'critical' === $type && ! empty( $core_update->support_email );
if ( $critical_support ) {
// Support offer if available.
$body .= "\n\n" . sprintf( __( "The WordPress team is willing to help you. Forward this email to %s and the team will work with you to make sure your site is working." ), $core_update->support_email );
} else {
// Add a note about the support forums.
$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" . __( 'https://wordpress.org/support/' );
}
// 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.' );
}
if ( $critical_support ) {
$body .= " " . __( "If you reach out to us, we'll also ensure you'll never have this problem again." );
}
// 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'], wp_specialchars_decode( $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
* @access protected
*/
protected function send_debug_email() {
$update_count = 0;
foreach ( $this->update_results as $type => $updates )
$update_count += count( $updates );
$body = array();
$failures = 0;
$body[] = sprintf( __( 'WordPress site: %s' ), 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 ) {
$messages = array(
'plugin' => __( 'The following plugins were successfully updated:' ),
'theme' => __( 'The following themes were successfully updated:' ),
'translation' => __( 'The following translations were successfully updated:' ),
);
$body[] = $messages[ $type ];
foreach ( wp_list_pluck( $success_items, 'name' ) as $name ) {
$body[] = ' * ' . sprintf( __( 'SUCCESS: %s' ), $name );
}
}
if ( $success_items != $this->update_results[ $type ] ) {
// Failed updates
$messages = array(
'plugin' => __( 'The following plugins failed to update:' ),
'theme' => __( 'The following themes failed to update:' ),
'translation' => __( 'The following translations failed to update:' ),
);
$body[] = $messages[ $type ];
foreach ( $this->update_results[ $type ] as $item ) {
if ( ! $item->result || is_wp_error( $item->result ) ) {
$body[] = ' * ' . sprintf( __( 'FAILED: %s' ), $item->name );
$failures++;
}
}
}
$body[] = '';
}
$site_title = wp_specialchars_decode( get_bloginfo( 'name' ), ENT_QUOTES );
if ( $failures ) {
$body[] = trim( __(
"BETA TESTING?
=============
This debugging email is sent when you are using a development version of WordPress.
If you think these failures might be due to a bug in WordPress, could you report it?
* Open a thread in the support forums: https://wordpress.org/support/forum/alphabeta
* Or, if you're comfortable writing a bug report: https://core.trac.wordpress.org/
Thanks! -- The WordPress Team" ) );
$body[] = '';
$subject = sprintf( __( '[%s] There were failures during background updates' ), $site_title );
} else {
$subject = sprintf( __( '[%s] Background updates have finished' ), $site_title );
}
$body[] = trim( __(
'UPDATE LOG
==========' ) );
$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( '&#8230;', '...', $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;
if ( 'rollback' === $result_type ) {
/* translators: 1: Error code, 2: Error message. */
$body[] = ' ' . sprintf( __( 'Rollback Error: [%1$s] %2$s' ), $result->get_error_code(), $result->get_error_message() );
} else {
/* translators: 1: Error code, 2: Error message. */
$body[] = ' ' . sprintf( __( 'Error: [%1$s] %2$s' ), $result->get_error_code(), $result->get_error_message() );
}
if ( $result->get_error_data() )
$body[] = ' ' . implode( ', ', (array) $result->get_error_data() );
}
}
$body[] = '';
}
}
$email = array(
'to' => get_site_option( 'admin_email' ),
'subject' => $subject,
'body' => implode( "\n", $body ),
'headers' => ''
);
/**
* Filter the debug email that can be sent following an automatic
* background core update.
*
* @since 3.8.0
*
* @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 Email subject.
* @type string $body Email message body.
* @type string $headers Any email headers. Default empty.
* }
* @param int $failures The number of failures encountered while upgrading.
* @param mixed $results The results of all attempted updates.
*/
$email = apply_filters( 'automatic_updates_debug_email', $email, $failures, $this->update_results );
wp_mail( $email['to'], wp_specialchars_decode( $email['subject'] ), $email['body'], $email['headers'] );
}
}