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<?php
/**
* Upgrade API: Language_Pack_Upgrader class
*
* @package WordPress
* @subpackage Upgrader
* @since 4.6.0
*/
/**
* Core class used for updating/installing language packs (translations)
* for plugins, themes, and core.
*
* @since 3.7.0
* @since 4.6.0 Moved to its own file from wp-admin/includes/class-wp-upgrader.php.
*
* @see WP_Upgrader
*/
class Language_Pack_Upgrader extends WP_Upgrader {
/**
* Result of the language pack upgrade.
*
* @since 3.7.0
* @var array|WP_Error $result
* @see WP_Upgrader::$result
*/
public $result;
/**
* Whether a bulk upgrade/installation is being performed.
*
* @since 3.7.0
* @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
*
* @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 installations, 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 );
/**
* Filters 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 );
}
/**
* Initializes the upgrade strings.
*
* @since 3.7.0
*/
public function upgrade_strings() {
$this->strings['starting_upgrade'] = __( 'Some of your translations need updating. Sit tight for a few more seconds while they are updated as well.' );
$this->strings['up_to_date'] = __( 'Your translations are all up to date.' );
$this->strings['no_package'] = __( 'Update package not available.' );
/* translators: %s: Package URL. */
$this->strings['downloading_package'] = sprintf( __( 'Downloading translation from %s…' ), '<span class="code pre">%s</span>' );
$this->strings['unpack_package'] = __( 'Unpacking the update…' );
$this->strings['process_failed'] = __( 'Translation update failed.' );
$this->strings['process_success'] = __( 'Translation updated successfully.' );
$this->strings['remove_old'] = __( 'Removing the old version of the translation…' );
$this->strings['remove_old_failed'] = __( 'Could not remove the old translation.' );
}
/**
* Upgrades a language pack.
*
* @since 3.7.0
*
* @param string|false $update Optional. Whether an update offer is available. Default false.
* @param array $args Optional. Other optional arguments, see
* Language_Pack_Upgrader::bulk_upgrade(). Default empty array.
* @return array|bool|WP_Error The result of the upgrade, or a 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];
}
/**
* Upgrades several language packs at once.
*
* @since 3.7.0
*
* @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass.
*
* @param object[] $language_updates Optional. Array of language packs to update. See {@see wp_get_translation_updates()}.
* Default empty array.
* @param array $args {
* 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->set_result( true );
$this->skin->feedback( 'up_to_date' );
$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 );
}
}
$language_updates_results = array();
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' => true,
'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;
}
$language_updates_results[] = array(
'language' => $language_update->language,
'type' => $language_update->type,
'slug' => $language_update->slug ?? 'default',
'version' => $language_update->version,
);
}
// Remove upgrade hooks which are not required for translation updates.
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' );
/** This action is documented in wp-admin/includes/class-wp-upgrader.php */
do_action(
'upgrader_process_complete',
$this,
array(
'action' => 'update',
'type' => 'translation',
'bulk' => true,
'translations' => $language_updates_results,
)
);
// Re-add upgrade hooks.
add_action( 'upgrader_process_complete', array( 'Language_Pack_Upgrader', 'async_upgrade' ), 20 );
add_action( 'upgrader_process_complete', 'wp_version_check', 10, 0 );
add_action( 'upgrader_process_complete', 'wp_update_plugins', 10, 0 );
add_action( 'upgrader_process_complete', 'wp_update_themes', 10, 0 );
$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;
}
/**
* Checks that the package source contains .mo and .po files.
*
* Hooked to the {@see 'upgrader_source_selection'} filter by
* Language_Pack_Upgrader::bulk_upgrade().
*
* @since 3.7.0
*
* @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass.
*
* @param string|WP_Error $source The path to the downloaded package source.
* @param string $remote_source Remote file source location.
* @return string|WP_Error The source as passed, or a WP_Error object on failure.
*/
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 the expected files exist in the folder.
$po = false;
$mo = false;
$php = false;
foreach ( (array) $files as $file => $filedata ) {
if ( str_ends_with( $file, '.po' ) ) {
$po = true;
} elseif ( str_ends_with( $file, '.mo' ) ) {
$mo = true;
} elseif ( str_ends_with( $file, '.l10n.php' ) ) {
$php = true;
}
}
if ( $php ) {
return $source;
}
if ( ! $mo || ! $po ) {
return new WP_Error(
'incompatible_archive_pomo',
$this->strings['incompatible_archive'],
sprintf(
/* translators: 1: .po, 2: .mo, 3: .l10n.php */
__( 'The language pack is missing either the %1$s, %2$s, or %3$s files.' ),
'<code>.po</code>',
'<code>.mo</code>',
'<code>.l10n.php</code>'
)
);
}
return $source;
}
/**
* Gets the name of an item being updated.
*
* @since 3.7.0
*
* @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 '';
}
/**
* Clears existing translations where this item is going to be installed into.
*
* @since 5.1.0
*
* @global WP_Filesystem_Base $wp_filesystem WordPress 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;
$language_update = $this->skin->language_update;
$language_directory = WP_LANG_DIR . '/'; // Local path for use with glob().
if ( 'core' === $language_update->type ) {
$files = array(
$remote_destination . $language_update->language . '.po',
$remote_destination . $language_update->language . '.mo',
$remote_destination . $language_update->language . '.l10n.php',
$remote_destination . 'admin-' . $language_update->language . '.po',
$remote_destination . 'admin-' . $language_update->language . '.mo',
$remote_destination . 'admin-' . $language_update->language . '.l10n.php',
$remote_destination . 'admin-network-' . $language_update->language . '.po',
$remote_destination . 'admin-network-' . $language_update->language . '.mo',
$remote_destination . 'admin-network-' . $language_update->language . '.l10n.php',
$remote_destination . 'continents-cities-' . $language_update->language . '.po',
$remote_destination . 'continents-cities-' . $language_update->language . '.mo',
$remote_destination . 'continents-cities-' . $language_update->language . '.l10n.php',
);
$json_translation_files = glob( $language_directory . $language_update->language . '-*.json' );
if ( $json_translation_files ) {
foreach ( $json_translation_files as $json_translation_file ) {
$files[] = str_replace( $language_directory, $remote_destination, $json_translation_file );
}
}
} else {
$files = array(
$remote_destination . $language_update->slug . '-' . $language_update->language . '.po',
$remote_destination . $language_update->slug . '-' . $language_update->language . '.mo',
$remote_destination . $language_update->slug . '-' . $language_update->language . '.l10n.php',
);
$language_directory = $language_directory . $language_update->type . 's/';
$json_translation_files = glob( $language_directory . $language_update->slug . '-' . $language_update->language . '-*.json' );
if ( $json_translation_files ) {
foreach ( $json_translation_files as $json_translation_file ) {
$files[] = str_replace( $language_directory, $remote_destination, $json_translation_file );
}
}
}
$files = array_filter( $files, array( $wp_filesystem, 'exists' ) );
// No files to delete.
if ( ! $files ) {
return true;
}
// Check all files are writable before attempting to clear the destination.
$unwritable_files = array();
// Check writability.
foreach ( $files as $file ) {
if ( ! $wp_filesystem->is_writable( $file ) ) {
// Attempt to alter permissions to allow writes and try again.
$wp_filesystem->chmod( $file, FS_CHMOD_FILE );
if ( ! $wp_filesystem->is_writable( $file ) ) {
$unwritable_files[] = $file;
}
}
}
if ( ! empty( $unwritable_files ) ) {
return new WP_Error( 'files_not_writable', $this->strings['files_not_writable'], implode( ', ', $unwritable_files ) );
}
foreach ( $files as $file ) {
if ( ! $wp_filesystem->delete( $file ) ) {
return new WP_Error( 'remove_old_failed', $this->strings['remove_old_failed'] );
}
}
return true;
}
}