wp_ajax_update_plugin()
Handles updating a plugin via AJAX.
No Hooks.
Return
null
. Nothing (null).
Usage
wp_ajax_update_plugin();
Notes
- See: Plugin_Upgrader
- Global. WP_Filesystem_Base. $wp_filesystem WordPress filesystem subclass.
Changelog
Since 4.2.0 | Introduced. |
wp_ajax_update_plugin() wp ajax update plugin code WP 6.6.2
function wp_ajax_update_plugin() { check_ajax_referer( 'updates' ); if ( empty( $_POST['plugin'] ) || empty( $_POST['slug'] ) ) { wp_send_json_error( array( 'slug' => '', 'errorCode' => 'no_plugin_specified', 'errorMessage' => __( 'No plugin specified.' ), ) ); } $plugin = plugin_basename( sanitize_text_field( wp_unslash( $_POST['plugin'] ) ) ); $status = array( 'update' => 'plugin', 'slug' => sanitize_key( wp_unslash( $_POST['slug'] ) ), 'oldVersion' => '', 'newVersion' => '', ); if ( ! current_user_can( 'update_plugins' ) || 0 !== validate_file( $plugin ) ) { $status['errorMessage'] = __( 'Sorry, you are not allowed to update plugins for this site.' ); wp_send_json_error( $status ); } $plugin_data = get_plugin_data( WP_PLUGIN_DIR . '/' . $plugin ); $status['plugin'] = $plugin; $status['pluginName'] = $plugin_data['Name']; if ( $plugin_data['Version'] ) { /* translators: %s: Plugin version. */ $status['oldVersion'] = sprintf( __( 'Version %s' ), $plugin_data['Version'] ); } require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php'; wp_update_plugins(); $skin = new WP_Ajax_Upgrader_Skin(); $upgrader = new Plugin_Upgrader( $skin ); $result = $upgrader->bulk_upgrade( array( $plugin ) ); if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) { $status['debug'] = $skin->get_upgrade_messages(); } if ( is_wp_error( $skin->result ) ) { $status['errorCode'] = $skin->result->get_error_code(); $status['errorMessage'] = $skin->result->get_error_message(); wp_send_json_error( $status ); } elseif ( $skin->get_errors()->has_errors() ) { $status['errorMessage'] = $skin->get_error_messages(); wp_send_json_error( $status ); } elseif ( is_array( $result ) && ! empty( $result[ $plugin ] ) ) { /* * Plugin is already at the latest version. * * This may also be the return value if the `update_plugins` site transient is empty, * e.g. when you update two plugins in quick succession before the transient repopulates. * * Preferably something can be done to ensure `update_plugins` isn't empty. * For now, surface some sort of error here. */ if ( true === $result[ $plugin ] ) { $status['errorMessage'] = $upgrader->strings['up_to_date']; wp_send_json_error( $status ); } $plugin_data = get_plugins( '/' . $result[ $plugin ]['destination_name'] ); $plugin_data = reset( $plugin_data ); if ( $plugin_data['Version'] ) { /* translators: %s: Plugin version. */ $status['newVersion'] = sprintf( __( 'Version %s' ), $plugin_data['Version'] ); } wp_send_json_success( $status ); } elseif ( false === $result ) { global $wp_filesystem; $status['errorCode'] = 'unable_to_connect_to_filesystem'; $status['errorMessage'] = __( 'Unable to connect to the filesystem. Please confirm your credentials.' ); // Pass through the error from WP_Filesystem if one was raised. if ( $wp_filesystem instanceof WP_Filesystem_Base && is_wp_error( $wp_filesystem->errors ) && $wp_filesystem->errors->has_errors() ) { $status['errorMessage'] = esc_html( $wp_filesystem->errors->get_error_message() ); } wp_send_json_error( $status ); } // An unhandled error occurred. $status['errorMessage'] = __( 'Plugin update failed.' ); wp_send_json_error( $status ); }