name : class-plugin-upgrader.php <?php /** * Upgrade API: Plugin_Upgrader class * * @package WordPress * @subpackage Upgrader * @since 4.6.0 */ /** * 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 * @since 4.6.0 Moved to its own file from wp-admin/includes/class-wp-upgrader.php. * * @see WP_Upgrader */ class Plugin_Upgrader extends WP_Upgrader { /** * Plugin upgrade result. * * @since 2.8.0 * @var array|WP_Error $result * * @see WP_Upgrader::$result */ public $result; /** * Whether a bulk upgrade/installation is being performed. * * @since 2.9.0 * @var bool $bulk */ public $bulk = false; /** * New plugin info. * * @since 5.5.0 * @var array $new_plugin_data * * @see check_package() */ public $new_plugin_data = array(); /** * Initializes the upgrade strings. * * @since 2.8.0 */ public function upgrade_strings() { $this->strings['up_to_date'] = __( 'The plugin is at the latest version.' ); $this->strings['no_package'] = __( 'Update package not available.' ); /* translators: %s: Package URL. */ $this->strings['downloading_package'] = sprintf( __( 'Downloading update from %s&#8230;' ), '<span class="code pre">%s</span>' ); $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.' ); } /** * Initializes the installation strings. * * @since 2.8.0 */ public function install_strings() { $this->strings['no_package'] = __( 'Installation package not available.' ); /* translators: %s: Package URL. */ $this->strings['downloading_package'] = sprintf( __( 'Downloading installation package from %s&#8230;' ), '<span class="code pre">%s</span>' ); $this->strings['unpack_package'] = __( 'Unpacking the package&#8230;' ); $this->strings['installing_package'] = __( 'Installing the plugin&#8230;' ); $this->strings['remove_old'] = __( 'Removing the current plugin&#8230;' ); $this->strings['remove_old_failed'] = __( 'Could not remove the current plugin.' ); $this->strings['no_files'] = __( 'The plugin contains no files.' ); $this->strings['process_failed'] = __( 'Plugin installation failed.' ); $this->strings['process_success'] = __( 'Plugin installed successfully.' ); /* translators: 1: Plugin name, 2: Plugin version. */ $this->strings['process_success_specific'] = __( 'Successfully installed the plugin <strong>%1$s %2$s</strong>.' ); if ( ! empty( $this->skin->overwrite ) ) { if ( 'update-plugin' === $this->skin->overwrite ) { $this->strings['installing_package'] = __( 'Updating the plugin&#8230;' ); $this->strings['process_failed'] = __( 'Plugin update failed.' ); $this->strings['process_success'] = __( 'Plugin updated successfully.' ); } if ( 'downgrade-plugin' === $this->skin->overwrite ) { $this->strings['installing_package'] = __( 'Downgrading the plugin&#8230;' ); $this->strings['process_failed'] = __( 'Plugin downgrade failed.' ); $this->strings['process_success'] = __( 'Plugin downgraded successfully.' ); } } } /** * Install a plugin package. * * @since 2.8.0 * @since 3.7.0 The `$args` parameter was added, making clearing the plugin update cache optional. * * @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 installation was successful, false or a WP_Error otherwise. */ public function install( $package, $args = array() ) { $defaults = array( 'clear_update_cache' => true, 'overwrite_package' => false, // Do not overwrite files. ); $parsed_args = wp_parse_args( $args, $defaults ); $this->init(); $this->install_strings(); add_filter( 'upgrader_source_selection', array( $this, 'check_package' ) ); if ( $parsed_args['clear_update_cache'] ) { // 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' => $parsed_args['overwrite_package'], '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'] ); if ( $parsed_args['overwrite_package'] ) { /** * Fires when the upgrader has successfully overwritten a currently installed * plugin or theme with an uploaded zip package. * * @since 5.5.0 * * @param string $package The package file. * @param array $data The new plugin or theme data. * @param string $package_type The package type ('plugin' or 'theme'). */ do_action( 'upgrader_overwrote_package', $package, $this->new_plugin_data, 'plugin' ); } return true; } /** * Upgrades a plugin. * * @since 2.8.0 * @since 3.7.0 The `$args` parameter was added, making clearing the plugin update cache optional. * * @param string $plugin Path to the plugin file relative to the plugins directory. * @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 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_pre_install', array( $this, 'active_before' ), 10, 2 ); add_filter( 'upgrader_clear_destination', array( $this, 'delete_old_plugin' ), 10, 4 ); add_filter( 'upgrader_post_install', array( $this, 'active_after' ), 10, 2 ); /* * There's a Trac ticket to move up the directory for zips which are made a bit differently, useful for non-.org plugins. * 'source_selection' => array( $this, 'source_selection' ), */ if ( $parsed_args['clear_update_cache'] ) { // 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' => $r->package, 'destination' => WP_PLUGIN_DIR, 'clear_destination' => true, 'clear_working' => true, 'hook_extra' => array( 'plugin' => $plugin, 'type' => 'plugin', 'action' => 'update', 'temp_backup' => array( 'slug' => dirname( $plugin ), 'src' => WP_PLUGIN_DIR, 'dir' => 'plugins', ), ), ) ); // Cleanup our hooks, in case something else does an upgrade on this connection. remove_action( 'upgrader_process_complete', 'wp_clean_plugins_cache', 9 ); remove_filter( 'upgrader_pre_install', array( $this, 'deactivate_plugin_before_upgrade' ) ); remove_filter( 'upgrader_pre_install', array( $this, 'active_before' ) ); remove_filter( 'upgrader_clear_destination', array( $this, 'delete_old_plugin' ) ); remove_filter( 'upgrader_post_install', array( $this, 'active_after' ) ); 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'] ); /* * Ensure any future auto-update failures trigger a failure email by removing * the last failure notification from the list when plugins update successfully. */ $past_failure_emails = get_option( 'auto_plugin_theme_update_emails', array() ); if ( isset( $past_failure_emails[ $plugin ] ) ) { unset( $past_failure_emails[ $plugin ] ); update_option( 'auto_plugin_theme_update_emails', $past_failure_emails ); } return true; } /** * Upgrades several plugins at once. * * @since 2.8.0 * @since 3.7.0 The `$args` parameter was added, making clearing the plugin update cache optional. * * @global string $wp_version The WordPress version string. * * @param string[] $plugins Array of paths to plugin files relative to the plugins directory. * @param array $args { * Optional. Other arguments for upgrading several plugins at once. * * @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() ) { global $wp_version; $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 ); if ( isset( $r->requires ) && ! is_wp_version_compatible( $r->requires ) ) { $result = new WP_Error( 'incompatible_wp_required_version', sprintf( /* translators: 1: Current WordPress version, 2: WordPress version required by the new plugin version. */ __( 'Your WordPress version is %1$s, however the new plugin version requires %2$s.' ), $wp_version, $r->requires ) ); $this->skin->before( $result ); $this->skin->error( $result ); $this->skin->after(); } elseif ( isset( $r->requires_php ) && ! is_php_version_compatible( $r->requires_php ) ) { $result = new WP_Error( 'incompatible_php_required_version', sprintf( /* translators: 1: Current PHP version, 2: PHP version required by the new plugin version. */ __( 'The PHP version on your server is %1$s, however the new plugin version requires %2$s.' ), PHP_VERSION, $r->requires_php ) ); $this->skin->before( $result ); $this->skin->error( $result ); $this->skin->after(); } else { add_filter( 'upgrader_source_selection', array( $this, 'check_package' ) ); $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, 'temp_backup' => array( 'slug' => dirname( $plugin ), 'src' => WP_PLUGIN_DIR, 'dir' => 'plugins', ), ), ) ); remove_filter( 'upgrader_source_selection', array( $this, 'check_package' ) ); } $results[ $plugin ] = $result; // Prevent credentials auth screen from displaying multiple times. if ( false === $result ) { break; } } // End foreach $plugins. $this->maintenance_mode( false ); // Force refresh of plugin update information. wp_clean_plugins_cache( $parsed_args['clear_update_cache'] ); /** This action is documented in wp-admin/includes/class-wp-upgrader.php */ 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 an upgrade on this connection. remove_filter( 'upgrader_clear_destination', array( $this, 'delete_old_plugin' ) ); /* * Ensure any future auto-update failures trigger a failure email by removing * the last failure notification from the list when plugins update successfully. */ $past_failure_emails = get_option( 'auto_plugin_theme_update_emails', array() ); foreach ( $results as $plugin => $result ) { // Maintain last failure notification when plugins failed to update manually. if ( ! $result || is_wp_error( $result ) || ! isset( $past_failure_emails[ $plugin ] ) ) { continue; } unset( $past_failure_emails[ $plugin ] ); } update_option( 'auto_plugin_theme_update_emails', $past_failure_emails ); return $results; } /** * Checks that the source package contains a valid plugin. * * Hooked to the {@see 'upgrader_source_selection'} filter by Plugin_Upgrader::install(). * * @since 3.3.0 * * @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass. * @global string $wp_version The WordPress version string. * * @param string $source The path to the downloaded package source. * @return string|WP_Error The source as passed, or a WP_Error object on failure. */ public function check_package( $source ) { global $wp_filesystem, $wp_version; $this->new_plugin_data = array(); 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 ) ) { // Confidence check, if the above fails, let's not prevent installation. return $source; } // Check that the folder contains at least 1 valid plugin. $files = glob( $working_directory . '*.php' ); if ( $files ) { foreach ( $files as $file ) { $info = get_plugin_data( $file, false, false ); if ( ! empty( $info['Name'] ) ) { $this->new_plugin_data = $info; break; } } } if ( empty( $this->new_plugin_data ) ) { return new WP_Error( 'incompatible_archive_no_plugins', $this->strings['incompatible_archive'], __( 'No valid plugins were found.' ) ); } $requires_php = isset( $info['RequiresPHP'] ) ? $info['RequiresPHP'] : null; $requires_wp = isset( $info['RequiresWP'] ) ? $info['RequiresWP'] : null; if ( ! is_php_version_compatible( $requires_php ) ) { $error = sprintf( /* translators: 1: Current PHP version, 2: Version required by the uploaded plugin. */ __( 'The PHP version on your server is %1$s, however the uploaded plugin requires %2$s.' ), PHP_VERSION, $requires_php ); return new WP_Error( 'incompatible_php_required_version', $this->strings['incompatible_archive'], $error ); } if ( ! is_wp_version_compatible( $requires_wp ) ) { $error = sprintf( /* translators: 1: Current WordPress version, 2: Version required by the uploaded plugin. */ __( 'Your WordPress version is %1$s, however the uploaded plugin requires %2$s.' ), $wp_version, $requires_wp ); return new WP_Error( 'incompatible_wp_required_version', $this->strings['incompatible_archive'], $error ); } return $source; } /** * Retrieves 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 * * @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; } // Ensure to pass with leading slash. $plugin = get_plugins( '/' . $this->result['destination_name'] ); if ( empty( $plugin ) ) { return false; } // Assume the requested plugin is the first in the list. $pluginfiles = array_keys( $plugin ); return $this->result['destination_name'] . '/' . $pluginfiles[0]; } /** * Deactivates a plugin before it is upgraded. * * Hooked to the {@see 'upgrader_pre_install'} filter by Plugin_Upgrader::upgrade(). * * @since 2.8.0 * @since 4.1.0 Added a return value. * * @param bool|WP_Error $response The installation response before the installation has started. * @param array $plugin Plugin package arguments. * @return bool|WP_Error The original `$response` parameter or WP_Error. */ public function deactivate_plugin_before_upgrade( $response, $plugin ) { if ( is_wp_error( $response ) ) { // Bypass. return $response; } // When in cron (background updates) don't deactivate the plugin, as we require a browser to reactivate it. if ( wp_doing_cron() ) { return $response; } $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 $response; } /** * Turns on maintenance mode before attempting to background update an active plugin. * * Hooked to the {@see 'upgrader_pre_install'} filter by Plugin_Upgrader::upgrade(). * * @since 5.4.0 * * @param bool|WP_Error $response The installation response before the installation has started. * @param array $plugin Plugin package arguments. * @return bool|WP_Error The original `$response` parameter or WP_Error. */ public function active_before( $response, $plugin ) { if ( is_wp_error( $response ) ) { return $response; } // Only enable maintenance mode when in cron (background update). if ( ! wp_doing_cron() ) { return $response; } $plugin = isset( $plugin['plugin'] ) ? $plugin['plugin'] : ''; // Only run if plugin is active. if ( ! is_plugin_active( $plugin ) ) { return $response; } // Change to maintenance mode. Bulk edit handles this separately. if ( ! $this->bulk ) { $this->maintenance_mode( true ); } return $response; } /** * Turns off maintenance mode after upgrading an active plugin. * * Hooked to the {@see 'upgrader_post_install'} filter by Plugin_Upgrader::upgrade(). * * @since 5.4.0 * * @param bool|WP_Error $response The installation response after the installation has finished. * @param array $plugin Plugin package arguments. * @return bool|WP_Error The original `$response` parameter or WP_Error. */ public function active_after( $response, $plugin ) { if ( is_wp_error( $response ) ) { return $response; } // Only disable maintenance mode when in cron (background update). if ( ! wp_doing_cron() ) { return $response; } $plugin = isset( $plugin['plugin'] ) ? $plugin['plugin'] : ''; // Only run if plugin is active. if ( ! is_plugin_active( $plugin ) ) { return $response; } // Time to remove maintenance mode. Bulk edit handles this separately. if ( ! $this->bulk ) { $this->maintenance_mode( false ); } return $response; } /** * Deletes the old plugin during an upgrade. * * Hooked to the {@see 'upgrader_clear_destination'} filter by * Plugin_Upgrader::upgrade() and Plugin_Upgrader::bulk_upgrade(). * * @since 2.8.0 * * @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass. * * @param bool|WP_Error $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 $plugin Extra arguments passed to hooked filters. * @return bool|WP_Error */ 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. * Base check on if plugin includes directory separator AND that it's not the root plugin folder. */ if ( strpos( $plugin, '/' ) && $this_plugin_dir !== $plugins_dir ) { $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; } }