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class-wp-rest-themes-controller.php (18127B)

---

 <?php
 /**
  * REST API: WP_REST_Themes_Controller class
  *
  * @package WordPress
  * @subpackage REST_API
  * @since 5.0.0
  */
 
 /**
  * Core class used to manage themes via the REST API.
  *
  * @since 5.0.0
  *
  * @see WP_REST_Controller
  */
 class WP_REST_Themes_Controller extends WP_REST_Controller {
 
 	/**
 	 * Constructor.
 	 *
 	 * @since 5.0.0
 	 */
 	public function __construct() {
 		$this->namespace = 'wp/v2';
 		$this->rest_base = 'themes';
 	}
 
 	/**
 	 * Registers the routes for themes.
 	 *
 	 * @since 5.0.0
 	 *
 	 * @see register_rest_route()
 	 */
 	public function register_routes() {
 		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(),
 				),
 				'schema' => array( $this, 'get_item_schema' ),
 			)
 		);
 
 		register_rest_route(
 			$this->namespace,
 			'/' . $this->rest_base . '/(?P<stylesheet>[\w-]+)',
 			array(
 				'args'   => array(
 					'stylesheet' => array(
 						'description' => __( "The theme's stylesheet. This uniquely identifies the theme." ),
 						'type'        => 'string',
 					),
 				),
 				array(
 					'methods'             => WP_REST_Server::READABLE,
 					'callback'            => array( $this, 'get_item' ),
 					'permission_callback' => array( $this, 'get_item_permissions_check' ),
 				),
 				'schema' => array( $this, 'get_public_item_schema' ),
 			)
 		);
 	}
 
 	/**
 	 * Checks if a given request has access to read the theme.
 	 *
 	 * @since 5.0.0
 	 *
 	 * @param WP_REST_Request $request Full details about the request.
 	 * @return true|WP_Error True if the request has read access for the item, otherwise WP_Error object.
 	 */
 	public function get_items_permissions_check( $request ) {
 		if ( current_user_can( 'switch_themes' ) || current_user_can( 'manage_network_themes' ) ) {
 			return true;
 		}
 
 		$registered = $this->get_collection_params();
 		if ( isset( $registered['status'], $request['status'] ) && is_array( $request['status'] ) && array( 'active' ) === $request['status'] ) {
 			return $this->check_read_active_theme_permission();
 		}
 
 		return new WP_Error(
 			'rest_cannot_view_themes',
 			__( 'Sorry, you are not allowed to view themes.' ),
 			array( 'status' => rest_authorization_required_code() )
 		);
 	}
 
 	/**
 	 * Checks if a given request has access to read the theme.
 	 *
 	 * @since 5.7.0
 	 *
 	 * @param WP_REST_Request $request Full details about the request.
 	 * @return bool|WP_Error True if the request has read access for the item, otherwise WP_Error object.
 	 */
 	public function get_item_permissions_check( $request ) {
 		if ( current_user_can( 'switch_themes' ) || current_user_can( 'manage_network_themes' ) ) {
 			return true;
 		}
 
 		$wp_theme      = wp_get_theme( $request['stylesheet'] );
 		$current_theme = wp_get_theme();
 
 		if ( $this->is_same_theme( $wp_theme, $current_theme ) ) {
 			return $this->check_read_active_theme_permission();
 		}
 
 		return new WP_Error(
 			'rest_cannot_view_themes',
 			__( 'Sorry, you are not allowed to view themes.' ),
 			array( 'status' => rest_authorization_required_code() )
 		);
 	}
 
 	/**
 	 * Checks if a theme can be read.
 	 *
 	 * @since 5.7.0
 	 *
 	 * @return bool|WP_Error Whether the theme can be read.
 	 */
 	protected function check_read_active_theme_permission() {
 		if ( current_user_can( 'edit_posts' ) ) {
 			return true;
 		}
 
 		foreach ( get_post_types( array( 'show_in_rest' => true ), 'objects' ) as $post_type ) {
 			if ( current_user_can( $post_type->cap->edit_posts ) ) {
 				return true;
 			}
 		}
 
 		return new WP_Error(
 			'rest_cannot_view_active_theme',
 			__( 'Sorry, you are not allowed to view the active theme.' ),
 			array( 'status' => rest_authorization_required_code() )
 		);
 	}
 
 	/**
 	 * Retrieves a single theme.
 	 *
 	 * @since 5.7.0
 	 *
 	 * @param WP_REST_Request $request Full details about the request.
 	 * @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
 	 */
 	public function get_item( $request ) {
 		$wp_theme = wp_get_theme( $request['stylesheet'] );
 		if ( ! $wp_theme->exists() ) {
 			return new WP_Error(
 				'rest_theme_not_found',
 				__( 'Theme not found.' ),
 				array( 'status' => 404 )
 			);
 		}
 		$data = $this->prepare_item_for_response( $wp_theme, $request );
 
 		return rest_ensure_response( $data );
 	}
 
 	/**
 	 * Retrieves a collection of themes.
 	 *
 	 * @since 5.0.0
 	 *
 	 * @param WP_REST_Request $request Full details about the request.
 	 * @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
 	 */
 	public function get_items( $request ) {
 		$themes = array();
 
 		$active_themes = wp_get_themes();
 		$current_theme = wp_get_theme();
 		$status        = $request['status'];
 
 		foreach ( $active_themes as $theme_name => $theme ) {
 			$theme_status = ( $this->is_same_theme( $theme, $current_theme ) ) ? 'active' : 'inactive';
 			if ( is_array( $status ) && ! in_array( $theme_status, $status, true ) ) {
 				continue;
 			}
 
 			$prepared = $this->prepare_item_for_response( $theme, $request );
 			$themes[] = $this->prepare_response_for_collection( $prepared );
 		}
 
 		$response = rest_ensure_response( $themes );
 
 		$response->header( 'X-WP-Total', count( $themes ) );
 		$response->header( 'X-WP-TotalPages', 1 );
 
 		return $response;
 	}
 
 	/**
 	 * Prepares a single theme output for response.
 	 *
 	 * @since 5.0.0
 	 *
 	 * @param WP_Theme        $theme   Theme object.
 	 * @param WP_REST_Request $request Request object.
 	 * @return WP_REST_Response Response object.
 	 */
 	public function prepare_item_for_response( $theme, $request ) {
 		$data   = array();
 		$fields = $this->get_fields_for_response( $request );
 
 		if ( rest_is_field_included( 'stylesheet', $fields ) ) {
 			$data['stylesheet'] = $theme->get_stylesheet();
 		}
 
 		if ( rest_is_field_included( 'template', $fields ) ) {
 			/**
 			 * Use the get_template() method, not the 'Template' header, for finding the template.
 			 * The 'Template' header is only good for what was written in the style.css, while
 			 * get_template() takes into account where WordPress actually located the theme and
 			 * whether it is actually valid.
 			 */
 			$data['template'] = $theme->get_template();
 		}
 
 		$plain_field_mappings = array(
 			'requires_php' => 'RequiresPHP',
 			'requires_wp'  => 'RequiresWP',
 			'textdomain'   => 'TextDomain',
 			'version'      => 'Version',
 		);
 
 		foreach ( $plain_field_mappings as $field => $header ) {
 			if ( rest_is_field_included( $field, $fields ) ) {
 				$data[ $field ] = $theme->get( $header );
 			}
 		}
 
 		if ( rest_is_field_included( 'screenshot', $fields ) ) {
 			// Using $theme->get_screenshot() with no args to get absolute URL.
 			$data['screenshot'] = $theme->get_screenshot() ? $theme->get_screenshot() : '';
 		}
 
 		$rich_field_mappings = array(
 			'author'      => 'Author',
 			'author_uri'  => 'AuthorURI',
 			'description' => 'Description',
 			'name'        => 'Name',
 			'tags'        => 'Tags',
 			'theme_uri'   => 'ThemeURI',
 		);
 
 		foreach ( $rich_field_mappings as $field => $header ) {
 			if ( rest_is_field_included( "{$field}.raw", $fields ) ) {
 				$data[ $field ]['raw'] = $theme->display( $header, false, true );
 			}
 
 			if ( rest_is_field_included( "{$field}.rendered", $fields ) ) {
 				$data[ $field ]['rendered'] = $theme->display( $header );
 			}
 		}
 
 		$current_theme = wp_get_theme();
 		if ( rest_is_field_included( 'status', $fields ) ) {
 			$data['status'] = ( $this->is_same_theme( $theme, $current_theme ) ) ? 'active' : 'inactive';
 		}
 
 		if ( rest_is_field_included( 'theme_supports', $fields ) && $this->is_same_theme( $theme, $current_theme ) ) {
 			foreach ( get_registered_theme_features() as $feature => $config ) {
 				if ( ! is_array( $config['show_in_rest'] ) ) {
 					continue;
 				}
 
 				$name = $config['show_in_rest']['name'];
 
 				if ( ! rest_is_field_included( "theme_supports.{$name}", $fields ) ) {
 					continue;
 				}
 
 				if ( ! current_theme_supports( $feature ) ) {
 					$data['theme_supports'][ $name ] = $config['show_in_rest']['schema']['default'];
 					continue;
 				}
 
 				$support = get_theme_support( $feature );
 
 				if ( isset( $config['show_in_rest']['prepare_callback'] ) ) {
 					$prepare = $config['show_in_rest']['prepare_callback'];
 				} else {
 					$prepare = array( $this, 'prepare_theme_support' );
 				}
 
 				$prepared = $prepare( $support, $config, $feature, $request );
 
 				if ( is_wp_error( $prepared ) ) {
 					continue;
 				}
 
 				$data['theme_supports'][ $name ] = $prepared;
 			}
 		}
 
 		$data = $this->add_additional_fields_to_object( $data, $request );
 
 		// Wrap the data in a response object.
 		$response = rest_ensure_response( $data );
 
 		$response->add_links( $this->prepare_links( $theme ) );
 
 		/**
 		 * Filters theme data returned from the REST API.
 		 *
 		 * @since 5.0.0
 		 *
 		 * @param WP_REST_Response $response The response object.
 		 * @param WP_Theme         $theme    Theme object used to create response.
 		 * @param WP_REST_Request  $request  Request object.
 		 */
 		return apply_filters( 'rest_prepare_theme', $response, $theme, $request );
 	}
 
 	/**
 	 * Prepares links for the request.
 	 *
 	 * @since 5.7.0
 	 *
 	 * @param WP_Theme $theme Theme data.
 	 * @return array Links for the given block type.
 	 */
 	protected function prepare_links( $theme ) {
 		return array(
 			'self'       => array(
 				'href' => rest_url( sprintf( '%s/%s/%s', $this->namespace, $this->rest_base, $theme->get_stylesheet() ) ),
 			),
 			'collection' => array(
 				'href' => rest_url( sprintf( '%s/%s', $this->namespace, $this->rest_base ) ),
 			),
 		);
 	}
 
 	/**
 	 * Helper function to compare two themes.
 	 *
 	 * @since 5.7.0
 	 *
 	 * @param WP_Theme $theme_a First theme to compare.
 	 * @param WP_Theme $theme_b Second theme to compare.
 	 * @return bool
 	 */
 	protected function is_same_theme( $theme_a, $theme_b ) {
 		return $theme_a->get_stylesheet() === $theme_b->get_stylesheet();
 	}
 
 	/**
 	 * Prepares the theme support value for inclusion in the REST API response.
 	 *
 	 * @since 5.5.0
 	 *
 	 * @param mixed           $support The raw value from get_theme_support().
 	 * @param array           $args    The feature's registration args.
 	 * @param string          $feature The feature name.
 	 * @param WP_REST_Request $request The request object.
 	 * @return mixed The prepared support value.
 	 */
 	protected function prepare_theme_support( $support, $args, $feature, $request ) {
 		$schema = $args['show_in_rest']['schema'];
 
 		if ( 'boolean' === $schema['type'] ) {
 			return true;
 		}
 
 		if ( is_array( $support ) && ! $args['variadic'] ) {
 			$support = $support[0];
 		}
 
 		return rest_sanitize_value_from_schema( $support, $schema );
 	}
 
 	/**
 	 * Retrieves the theme's schema, conforming to JSON Schema.
 	 *
 	 * @since 5.0.0
 	 *
 	 * @return array Item schema data.
 	 */
 	public function get_item_schema() {
 		if ( $this->schema ) {
 			return $this->add_additional_fields_schema( $this->schema );
 		}
 
 		$schema = array(
 			'$schema'    => 'http://json-schema.org/draft-04/schema#',
 			'title'      => 'theme',
 			'type'       => 'object',
 			'properties' => array(
 				'stylesheet'     => array(
 					'description' => __( 'The theme\'s stylesheet. This uniquely identifies the theme.' ),
 					'type'        => 'string',
 					'readonly'    => true,
 				),
 				'template'       => array(
 					'description' => __( 'The theme\'s template. If this is a child theme, this refers to the parent theme, otherwise this is the same as the theme\'s stylesheet.' ),
 					'type'        => 'string',
 					'readonly'    => true,
 				),
 				'author'         => array(
 					'description' => __( 'The theme author.' ),
 					'type'        => 'object',
 					'readonly'    => true,
 					'properties'  => array(
 						'raw'      => array(
 							'description' => __( 'The theme author\'s name, as found in the theme header.' ),
 							'type'        => 'string',
 						),
 						'rendered' => array(
 							'description' => __( 'HTML for the theme author, transformed for display.' ),
 							'type'        => 'string',
 						),
 					),
 				),
 				'author_uri'     => array(
 					'description' => __( 'The website of the theme author.' ),
 					'type'        => 'object',
 					'readonly'    => true,
 					'properties'  => array(
 						'raw'      => array(
 							'description' => __( 'The website of the theme author, as found in the theme header.' ),
 							'type'        => 'string',
 							'format'      => 'uri',
 						),
 						'rendered' => array(
 							'description' => __( 'The website of the theme author, transformed for display.' ),
 							'type'        => 'string',
 							'format'      => 'uri',
 						),
 					),
 				),
 				'description'    => array(
 					'description' => __( 'A description of the theme.' ),
 					'type'        => 'object',
 					'readonly'    => true,
 					'properties'  => array(
 						'raw'      => array(
 							'description' => __( 'The theme description, as found in the theme header.' ),
 							'type'        => 'string',
 						),
 						'rendered' => array(
 							'description' => __( 'The theme description, transformed for display.' ),
 							'type'        => 'string',
 						),
 					),
 				),
 				'name'           => array(
 					'description' => __( 'The name of the theme.' ),
 					'type'        => 'object',
 					'readonly'    => true,
 					'properties'  => array(
 						'raw'      => array(
 							'description' => __( 'The theme name, as found in the theme header.' ),
 							'type'        => 'string',
 						),
 						'rendered' => array(
 							'description' => __( 'The theme name, transformed for display.' ),
 							'type'        => 'string',
 						),
 					),
 				),
 				'requires_php'   => array(
 					'description' => __( 'The minimum PHP version required for the theme to work.' ),
 					'type'        => 'string',
 					'readonly'    => true,
 				),
 				'requires_wp'    => array(
 					'description' => __( 'The minimum WordPress version required for the theme to work.' ),
 					'type'        => 'string',
 					'readonly'    => true,
 				),
 				'screenshot'     => array(
 					'description' => __( 'The theme\'s screenshot URL.' ),
 					'type'        => 'string',
 					'format'      => 'uri',
 					'readonly'    => true,
 				),
 				'tags'           => array(
 					'description' => __( 'Tags indicating styles and features of the theme.' ),
 					'type'        => 'object',
 					'readonly'    => true,
 					'properties'  => array(
 						'raw'      => array(
 							'description' => __( 'The theme tags, as found in the theme header.' ),
 							'type'        => 'array',
 							'items'       => array(
 								'type' => 'string',
 							),
 						),
 						'rendered' => array(
 							'description' => __( 'The theme tags, transformed for display.' ),
 							'type'        => 'string',
 						),
 					),
 				),
 				'textdomain'     => array(
 					'description' => __( 'The theme\'s text domain.' ),
 					'type'        => 'string',
 					'readonly'    => true,
 				),
 				'theme_supports' => array(
 					'description' => __( 'Features supported by this theme.' ),
 					'type'        => 'object',
 					'readonly'    => true,
 					'properties'  => array(),
 				),
 				'theme_uri'      => array(
 					'description' => __( 'The URI of the theme\'s webpage.' ),
 					'type'        => 'object',
 					'readonly'    => true,
 					'properties'  => array(
 						'raw'      => array(
 							'description' => __( 'The URI of the theme\'s webpage, as found in the theme header.' ),
 							'type'        => 'string',
 							'format'      => 'uri',
 						),
 						'rendered' => array(
 							'description' => __( 'The URI of the theme\'s webpage, transformed for display.' ),
 							'type'        => 'string',
 							'format'      => 'uri',
 						),
 					),
 				),
 				'version'        => array(
 					'description' => __( 'The theme\'s current version.' ),
 					'type'        => 'string',
 					'readonly'    => true,
 				),
 				'status'         => array(
 					'description' => __( 'A named status for the theme.' ),
 					'type'        => 'string',
 					'enum'        => array( 'inactive', 'active' ),
 				),
 			),
 		);
 
 		foreach ( get_registered_theme_features() as $feature => $config ) {
 			if ( ! is_array( $config['show_in_rest'] ) ) {
 				continue;
 			}
 
 			$name = $config['show_in_rest']['name'];
 
 			$schema['properties']['theme_supports']['properties'][ $name ] = $config['show_in_rest']['schema'];
 		}
 
 		$this->schema = $schema;
 
 		return $this->add_additional_fields_schema( $this->schema );
 	}
 
 	/**
 	 * Retrieves the search params for the themes collection.
 	 *
 	 * @since 5.0.0
 	 *
 	 * @return array Collection parameters.
 	 */
 	public function get_collection_params() {
 		$query_params = array(
 			'status' => array(
 				'description' => __( 'Limit result set to themes assigned one or more statuses.' ),
 				'type'        => 'array',
 				'items'       => array(
 					'enum' => array( 'active', 'inactive' ),
 					'type' => 'string',
 				),
 			),
 		);
 
 		/**
 		 * Filters REST API collection parameters for the themes controller.
 		 *
 		 * @since 5.0.0
 		 *
 		 * @param array $query_params JSON Schema-formatted collection parameters.
 		 */
 		return apply_filters( 'rest_themes_collection_params', $query_params );
 	}
 
 	/**
 	 * Sanitizes and validates the list of theme status.
 	 *
 	 * @since 5.0.0
 	 * @deprecated 5.7.0
 	 *
 	 * @param string|array    $statuses  One or more theme statuses.
 	 * @param WP_REST_Request $request   Full details about the request.
 	 * @param string          $parameter Additional parameter to pass to validation.
 	 * @return array|WP_Error A list of valid statuses, otherwise WP_Error object.
 	 */
 	public function sanitize_theme_status( $statuses, $request, $parameter ) {
 		_deprecated_function( __METHOD__, '5.7.0' );
 
 		$statuses = wp_parse_slug_list( $statuses );
 
 		foreach ( $statuses as $status ) {
 			$result = rest_validate_request_arg( $status, $request, $parameter );
 
 			if ( is_wp_error( $result ) ) {
 				return $result;
 			}
 		}
 
 		return $statuses;
 	}
 }