wp_ajax_update_plugin()

Source

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 ); } 

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