<?php
/**
* Core class used to access templates via the REST API for WordPress 7.0.
*
* This class extension exists only to override the core route,
* and to ensure the gutenberg_resolve_pattern_blocks function is used in the prepare_item_for_response method.
* See: https://github.com/WordPress/gutenberg/pull/73477
*
* Note: there are no changes in this class that need to be backported to core.
*
* @see WP_REST_Templates_Controller
*/
class Gutenberg_REST_Templates_Controller_7_0 extends WP_REST_Templates_Controller {
/**
* Registers the controllers routes.
*
* @since 5.8.0
* @since 6.1.0 Endpoint for fallback template content.
*/
public function register_routes() {
// Lists all templates.
register_rest_route(
$this->namespace,
'/' . $this->rest_base,
array(
array(
'methods' => WP_REST_Server::READABLE,
'callback' => array( $this, 'get_items' ),
'permission_callback' => array( $this, 'get_items_permissions_check' ),
'args' => $this->get_collection_params(),
),
array(
'methods' => WP_REST_Server::CREATABLE,
'callback' => array( $this, 'create_item' ),
'permission_callback' => array( $this, 'create_item_permissions_check' ),
'args' => $this->get_endpoint_args_for_item_schema( WP_REST_Server::CREATABLE ),
),
'schema' => array( $this, 'get_public_item_schema' ),
),
/*
* $override is set to true to ensure Gutenberg's route takes precedence
* over WordPress Core's automatic registration.
*/
true
);
// Get fallback template content.
register_rest_route(
$this->namespace,
'/' . $this->rest_base . '/lookup',
array(
array(
'methods' => WP_REST_Server::READABLE,
'callback' => array( $this, 'get_template_fallback' ),
'permission_callback' => array( $this, 'get_item_permissions_check' ),
'args' => array(
'slug' => array(
'description' => __( 'The slug of the template to get the fallback for' ),
'type' => 'string',
'required' => true,
),
'is_custom' => array(
'description' => __( 'Indicates if a template is custom or part of the template hierarchy' ),
'type' => 'boolean',
),
'template_prefix' => array(
'description' => __( 'The template prefix for the created template. This is used to extract the main template type, e.g. in `taxonomy-books` extracts the `taxonomy`' ),
'type' => 'string',
),
),
),
),
/*
* $override is set to true to ensure Gutenberg's route takes precedence
* over WordPress Core's automatic registration.
*/
true
);
// Lists/updates a single template based on the given id.
register_rest_route(
$this->namespace,
// The route.
sprintf(
'/%s/(?P<id>%s%s)',
$this->rest_base,
/*
* Matches theme's directory: `/themes/<subdirectory>/<theme>/` or `/themes/<theme>/`.
* Excludes invalid directory name characters: `/:<>*?"|`.
*/
'([^\/:<>\*\?"\|]+(?:\/[^\/:<>\*\?"\|]+)?)',
// Matches the template name.
'[\/\w%-]+'
),
array(
'args' => array(
'id' => array(
'description' => __( 'The id of a template' ),
'type' => 'string',
'sanitize_callback' => array( $this, '_sanitize_template_id' ),
),
),
array(
'methods' => WP_REST_Server::READABLE,
'callback' => array( $this, 'get_item' ),
'permission_callback' => array( $this, 'get_item_permissions_check' ),
'args' => array(
'context' => $this->get_context_param( array( 'default' => 'view' ) ),
),
),
array(
'methods' => WP_REST_Server::EDITABLE,
'callback' => array( $this, 'update_item' ),
'permission_callback' => array( $this, 'update_item_permissions_check' ),
'args' => $this->get_endpoint_args_for_item_schema( WP_REST_Server::EDITABLE ),
),
array(
'methods' => WP_REST_Server::DELETABLE,
'callback' => array( $this, 'delete_item' ),
'permission_callback' => array( $this, 'delete_item_permissions_check' ),
'args' => array(
'force' => array(
'type' => 'boolean',
'default' => false,
'description' => __( 'Whether to bypass Trash and force deletion.' ),
),
),
),
'schema' => array( $this, 'get_public_item_schema' ),
),
/*
* $override is set to true to ensure Gutenberg's route takes precedence
* over WordPress Core's automatic registration.
*/
true
);
}
/**
* Prepare a single template output for response
*
* @since 5.8.0
* @since 5.9.0 Renamed `$template` to `$item` to match parent class for PHP 8 named parameter support.
* @since 6.3.0 Added `modified` property to the response.
*
* @param WP_Block_Template $item Template instance.
* @param WP_REST_Request $request Request object.
* @return WP_REST_Response Response object.
*/
public function prepare_item_for_response( $item, $request ) {
// Don't prepare the response body for HEAD requests.
if ( $request->is_method( 'HEAD' ) ) {
return new WP_REST_Response( array() );
}
/*
* Resolve pattern blocks so they don't need to be resolved client-side
* in the editor, improving performance.
*/
$blocks = parse_blocks( $item->content );
//////////////////////////////
// START CORE MODIFICATIONS //
//////////////////////////////
$blocks = gutenberg_resolve_pattern_blocks( $blocks );
//////////////////////////////
// END CORE MODIFICATIONS //
//////////////////////////////
$item->content = serialize_blocks( $blocks );
// Restores the more descriptive, specific name for use within this method.
$template = $item;
$fields = $this->get_fields_for_response( $request );
// Base fields for every template.
$data = array();
if ( rest_is_field_included( 'id', $fields ) ) {
$data['id'] = $template->id;
}
if ( rest_is_field_included( 'theme', $fields ) ) {
$data['theme'] = $template->theme;
}
if ( rest_is_field_included( 'content', $fields ) ) {
$data['content'] = array();
}
if ( rest_is_field_included( 'content.raw', $fields ) ) {
$data['content']['raw'] = $template->content;
}
if ( rest_is_field_included( 'content.block_version', $fields ) ) {
$data['content']['block_version'] = block_version( $template->content );
}
if ( rest_is_field_included( 'slug', $fields ) ) {
$data['slug'] = $template->slug;
}
if ( rest_is_field_included( 'source', $fields ) ) {
$data['source'] = $template->source;
}
if ( rest_is_field_included( 'origin', $fields ) ) {
$data['origin'] = $template->origin;
}
if ( rest_is_field_included( 'type', $fields ) ) {
$data['type'] = $template->type;
}
if ( rest_is_field_included( 'description', $fields ) ) {
$data['description'] = $template->description;
}
if ( rest_is_field_included( 'title', $fields ) ) {
$data['title'] = array();
}
if ( rest_is_field_included( 'title.raw', $fields ) ) {
$data['title']['raw'] = $template->title;
}
if ( rest_is_field_included( 'title.rendered', $fields ) ) {
if ( $template->wp_id ) {
/** This filter is documented in wp-includes/post-template.php */
$data['title']['rendered'] = apply_filters( 'the_title', $template->title, $template->wp_id );
} else {
$data['title']['rendered'] = $template->title;
}
}
if ( rest_is_field_included( 'status', $fields ) ) {
$data['status'] = $template->status;
}
if ( rest_is_field_included( 'wp_id', $fields ) ) {
$data['wp_id'] = (int) $template->wp_id;
}
if ( rest_is_field_included( 'has_theme_file', $fields ) ) {
$data['has_theme_file'] = (bool) $template->has_theme_file;
}
if ( rest_is_field_included( 'is_custom', $fields ) && 'wp_template' === $template->type ) {
$data['is_custom'] = $template->is_custom;
}
if ( rest_is_field_included( 'author', $fields ) ) {
$data['author'] = (int) $template->author;
}
if ( rest_is_field_included( 'area', $fields ) && 'wp_template_part' === $template->type ) {
$data['area'] = $template->area;
}
if ( rest_is_field_included( 'modified', $fields ) ) {
$data['modified'] = mysql_to_rfc3339( $template->modified );
}
if ( rest_is_field_included( 'author_text', $fields ) ) {
$data['author_text'] = self::get_wp_templates_author_text_field( $template );
}
if ( rest_is_field_included( 'original_source', $fields ) ) {
$data['original_source'] = self::get_wp_templates_original_source_field( $template );
}
if ( rest_is_field_included( 'plugin', $fields ) ) {
$registered_template = WP_Block_Templates_Registry::get_instance()->get_by_slug( $template->slug );
if ( $registered_template ) {
$data['plugin'] = $registered_template->plugin;
}
}
$context = ! empty( $request['context'] ) ? $request['context'] : 'view';
$data = $this->add_additional_fields_to_object( $data, $request );
$data = $this->filter_response_by_context( $data, $context );
// Wrap the data in a response object.
$response = rest_ensure_response( $data );
if ( rest_is_field_included( '_links', $fields ) || rest_is_field_included( '_embedded', $fields ) ) {
$links = $this->prepare_links( $template->id );
$response->add_links( $links );
if ( ! empty( $links['self']['href'] ) ) {
$actions = $this->get_available_actions();
$self = $links['self']['href'];
foreach ( $actions as $rel ) {
$response->add_link( $rel, $self );
}
}
}
return $response;
}
/**
* Returns the source from where the template originally comes from.
*
* @since 6.5.0
*
* @param WP_Block_Template $template_object Template instance.
* @return string Original source of the template one of theme, plugin, site, or user.
*/
private static function get_wp_templates_original_source_field( $template_object ) {
if ( 'wp_template' === $template_object->type || 'wp_template_part' === $template_object->type ) {
/*
* Added by theme.
* Template originally provided by a theme, but customized by a user.
* Templates originally didn't have the 'origin' field so identify
* older customized templates by checking for no origin and a 'theme'
* or 'custom' source.
*/
if ( $template_object->has_theme_file &&
( 'theme' === $template_object->origin || (
empty( $template_object->origin ) && in_array(
$template_object->source,
array(
'theme',
'custom',
),
true
) )
)
) {
return 'theme';
}
// Added by plugin.
if ( 'plugin' === $template_object->origin ) {
return 'plugin';
}
/*
* Added by site.
* Template was created from scratch, but has no author. Author support
* was only added to templates in WordPress 5.9. Fallback to showing the
* site logo and title.
*/
if ( empty( $template_object->has_theme_file ) && 'custom' === $template_object->source && empty( $template_object->author ) ) {
return 'site';
}
}
// Added by user.
return 'user';
}
/**
* Returns a human readable text for the author of the template.
*
* @since 6.5.0
*
* @param WP_Block_Template $template_object Template instance.
* @return string Human readable text for the author.
*/
private static function get_wp_templates_author_text_field( $template_object ) {
$original_source = self::get_wp_templates_original_source_field( $template_object );
switch ( $original_source ) {
case 'theme':
$theme_name = wp_get_theme( $template_object->theme )->get( 'Name' );
return empty( $theme_name ) ? $template_object->theme : $theme_name;
case 'plugin':
if ( ! function_exists( 'get_plugins' ) ) {
require_once ABSPATH . 'wp-admin/includes/plugin.php';
}
if ( isset( $template_object->plugin ) ) {
$plugins = wp_get_active_and_valid_plugins();
foreach ( $plugins as $plugin_file ) {
$plugin_basename = plugin_basename( $plugin_file );
// Split basename by '/' to get the plugin slug.
list( $plugin_slug, ) = explode( '/', $plugin_basename );
if ( $plugin_slug === $template_object->plugin ) {
$plugin_data = get_plugin_data( $plugin_file );
if ( ! empty( $plugin_data['Name'] ) ) {
return $plugin_data['Name'];
}
break;
}
}
}
/*
* Fall back to the theme name if the plugin is not defined. That's needed to keep backwards
* compatibility with templates that were registered before the plugin attribute was added.
*/
$plugins = get_plugins();
$plugin_basename = plugin_basename( sanitize_text_field( $template_object->theme . '.php' ) );
if ( isset( $plugins[ $plugin_basename ] ) && isset( $plugins[ $plugin_basename ]['Name'] ) ) {
return $plugins[ $plugin_basename ]['Name'];
}
return $template_object->plugin ?? $template_object->theme;
case 'site':
return get_bloginfo( 'name' );
case 'user':
$author = get_user_by( 'id', $template_object->author );
if ( ! $author ) {
return __( 'Unknown author' );
}
return $author->get( 'display_name' );
}
// Fail-safe to return a string should the original source ever fall through.
return '';
}
}