wp/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php
changeset 19 3d72ae0968f4
child 21 48c4eec2b7e6
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php	Tue Sep 27 16:37:53 2022 +0200
@@ -0,0 +1,653 @@
+<?php
+/**
+ * REST API: WP_REST_Global_Styles_Controller class
+ *
+ * @package    WordPress
+ * @subpackage REST_API
+ * @since 5.9.0
+ */
+
+/**
+ * Base Global Styles REST API Controller.
+ */
+class WP_REST_Global_Styles_Controller extends WP_REST_Controller {
+
+	/**
+	 * Post type.
+	 *
+	 * @since 5.9.0
+	 * @var string
+	 */
+	protected $post_type;
+
+	/**
+	 * Constructor.
+	 * @since 5.9.0
+	 */
+	public function __construct() {
+		$this->namespace = 'wp/v2';
+		$this->rest_base = 'global-styles';
+		$this->post_type = 'wp_global_styles';
+	}
+
+	/**
+	 * Registers the controllers routes.
+	 *
+	 * @since 5.9.0
+	 *
+	 * @return void
+	 */
+	public function register_routes() {
+		register_rest_route(
+			$this->namespace,
+			'/' . $this->rest_base . '/themes/(?P<stylesheet>[\/\s%\w\.\(\)\[\]\@_\-]+)/variations',
+			array(
+				array(
+					'methods'             => WP_REST_Server::READABLE,
+					'callback'            => array( $this, 'get_theme_items' ),
+					'permission_callback' => array( $this, 'get_theme_items_permissions_check' ),
+					'args'                => array(
+						'stylesheet' => array(
+							'description' => __( 'The theme identifier' ),
+							'type'        => 'string',
+						),
+					),
+				),
+			)
+		);
+
+		// List themes global styles.
+		register_rest_route(
+			$this->namespace,
+			// The route.
+			sprintf(
+				'/%s/themes/(?P<stylesheet>%s)',
+				$this->rest_base,
+				// Matches theme's directory: `/themes/<subdirectory>/<theme>/` or `/themes/<theme>/`.
+				// Excludes invalid directory name characters: `/:<>*?"|`.
+				'[^\/:<>\*\?"\|]+(?:\/[^\/:<>\*\?"\|]+)?'
+			),
+			array(
+				array(
+					'methods'             => WP_REST_Server::READABLE,
+					'callback'            => array( $this, 'get_theme_item' ),
+					'permission_callback' => array( $this, 'get_theme_item_permissions_check' ),
+					'args'                => array(
+						'stylesheet' => array(
+							'description'       => __( 'The theme identifier' ),
+							'type'              => 'string',
+							'sanitize_callback' => array( $this, '_sanitize_global_styles_callback' ),
+						),
+					),
+				),
+			)
+		);
+
+		// Lists/updates a single global style variation based on the given id.
+		register_rest_route(
+			$this->namespace,
+			'/' . $this->rest_base . '/(?P<id>[\/\w-]+)',
+			array(
+				array(
+					'methods'             => WP_REST_Server::READABLE,
+					'callback'            => array( $this, 'get_item' ),
+					'permission_callback' => array( $this, 'get_item_permissions_check' ),
+					'args'                => array(
+						'id' => array(
+							'description'       => __( 'The id of a template' ),
+							'type'              => 'string',
+							'sanitize_callback' => array( $this, '_sanitize_global_styles_callback' ),
+						),
+					),
+				),
+				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 ),
+				),
+				'schema' => array( $this, 'get_public_item_schema' ),
+			)
+		);
+	}
+
+	/**
+	 * Sanitize the global styles ID or stylesheet to decode endpoint.
+	 * For example, `wp/v2/global-styles/twentytwentytwo%200.4.0`
+	 * would be decoded to `twentytwentytwo 0.4.0`.
+	 *
+	 * @since 5.9.0
+	 *
+	 * @param string $id_or_stylesheet Global styles ID or stylesheet.
+	 * @return string Sanitized global styles ID or stylesheet.
+	 */
+	public function _sanitize_global_styles_callback( $id_or_stylesheet ) {
+		return urldecode( $id_or_stylesheet );
+	}
+
+	/**
+	 * Checks if a given request has access to read a single global style.
+	 *
+	 * @since 5.9.0
+	 *
+	 * @param WP_REST_Request $request Full details about the request.
+	 * @return true|WP_Error True if the request has read access, WP_Error object otherwise.
+	 */
+	public function get_item_permissions_check( $request ) {
+		$post = $this->get_post( $request['id'] );
+		if ( is_wp_error( $post ) ) {
+			return $post;
+		}
+
+		if ( 'edit' === $request['context'] && $post && ! $this->check_update_permission( $post ) ) {
+			return new WP_Error(
+				'rest_forbidden_context',
+				__( 'Sorry, you are not allowed to edit this global style.' ),
+				array( 'status' => rest_authorization_required_code() )
+			);
+		}
+
+		if ( ! $this->check_read_permission( $post ) ) {
+			return new WP_Error(
+				'rest_cannot_view',
+				__( 'Sorry, you are not allowed to view this global style.' ),
+				array( 'status' => rest_authorization_required_code() )
+			);
+		}
+
+		return true;
+	}
+
+	/**
+	 * Checks if a global style can be read.
+	 *
+	 * @since 5.9.0
+	 *
+	 * @param WP_Post $post Post object.
+	 * @return bool Whether the post can be read.
+	 */
+	protected function check_read_permission( $post ) {
+		return current_user_can( 'read_post', $post->ID );
+	}
+
+	/**
+	 * Returns the given global styles config.
+	 *
+	 * @since 5.9.0
+	 *
+	 * @param WP_REST_Request $request The request instance.
+	 *
+	 * @return WP_REST_Response|WP_Error
+	 */
+	public function get_item( $request ) {
+		$post = $this->get_post( $request['id'] );
+		if ( is_wp_error( $post ) ) {
+			return $post;
+		}
+
+		return $this->prepare_item_for_response( $post, $request );
+	}
+
+	/**
+	 * Checks if a given request has access to write a single global styles config.
+	 *
+	 * @since 5.9.0
+	 *
+	 * @param WP_REST_Request $request Full details about the request.
+	 * @return true|WP_Error True if the request has write access for the item, WP_Error object otherwise.
+	 */
+	public function update_item_permissions_check( $request ) {
+		$post = $this->get_post( $request['id'] );
+		if ( is_wp_error( $post ) ) {
+			return $post;
+		}
+
+		if ( $post && ! $this->check_update_permission( $post ) ) {
+			return new WP_Error(
+				'rest_cannot_edit',
+				__( 'Sorry, you are not allowed to edit this global style.' ),
+				array( 'status' => rest_authorization_required_code() )
+			);
+		}
+
+		return true;
+	}
+
+	/**
+	 * Checks if a global style can be edited.
+	 *
+	 * @since 5.9.0
+	 *
+	 * @param WP_Post $post Post object.
+	 * @return bool Whether the post can be edited.
+	 */
+	protected function check_update_permission( $post ) {
+		return current_user_can( 'edit_post', $post->ID );
+	}
+
+	/**
+	 * Updates a single global style config.
+	 *
+	 * @since 5.9.0
+	 *
+	 * @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 update_item( $request ) {
+		$post_before = $this->get_post( $request['id'] );
+		if ( is_wp_error( $post_before ) ) {
+			return $post_before;
+		}
+
+		$changes = $this->prepare_item_for_database( $request );
+		$result  = wp_update_post( wp_slash( (array) $changes ), true, false );
+		if ( is_wp_error( $result ) ) {
+			return $result;
+		}
+
+		$post          = get_post( $request['id'] );
+		$fields_update = $this->update_additional_fields_for_object( $post, $request );
+		if ( is_wp_error( $fields_update ) ) {
+			return $fields_update;
+		}
+
+		wp_after_insert_post( $post, true, $post_before );
+
+		$response = $this->prepare_item_for_response( $post, $request );
+
+		return rest_ensure_response( $response );
+	}
+
+	/**
+	 * Prepares a single global styles config for update.
+	 *
+	 * @since 5.9.0
+	 *
+	 * @param WP_REST_Request $request Request object.
+	 * @return stdClass Changes to pass to wp_update_post.
+	 */
+	protected function prepare_item_for_database( $request ) {
+		$changes     = new stdClass();
+		$changes->ID = $request['id'];
+
+		$post            = get_post( $request['id'] );
+		$existing_config = array();
+		if ( $post ) {
+			$existing_config     = json_decode( $post->post_content, true );
+			$json_decoding_error = json_last_error();
+			if ( JSON_ERROR_NONE !== $json_decoding_error || ! isset( $existing_config['isGlobalStylesUserThemeJSON'] ) ||
+				! $existing_config['isGlobalStylesUserThemeJSON'] ) {
+				$existing_config = array();
+			}
+		}
+
+		if ( isset( $request['styles'] ) || isset( $request['settings'] ) ) {
+			$config = array();
+			if ( isset( $request['styles'] ) ) {
+				$config['styles'] = $request['styles'];
+			} elseif ( isset( $existing_config['styles'] ) ) {
+				$config['styles'] = $existing_config['styles'];
+			}
+			if ( isset( $request['settings'] ) ) {
+				$config['settings'] = $request['settings'];
+			} elseif ( isset( $existing_config['settings'] ) ) {
+				$config['settings'] = $existing_config['settings'];
+			}
+			$config['isGlobalStylesUserThemeJSON'] = true;
+			$config['version']                     = WP_Theme_JSON::LATEST_SCHEMA;
+			$changes->post_content                 = wp_json_encode( $config );
+		}
+
+		// Post title.
+		if ( isset( $request['title'] ) ) {
+			if ( is_string( $request['title'] ) ) {
+				$changes->post_title = $request['title'];
+			} elseif ( ! empty( $request['title']['raw'] ) ) {
+				$changes->post_title = $request['title']['raw'];
+			}
+		}
+
+		return $changes;
+	}
+
+	/**
+	 * Prepare a global styles config output for response.
+	 *
+	 * @since 5.9.0
+	 *
+	 * @param WP_Post         $post    Global Styles post object.
+	 * @param WP_REST_Request $request Request object.
+	 * @return WP_REST_Response Response object.
+	 */
+	public function prepare_item_for_response( $post, $request ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable
+		$raw_config                       = json_decode( $post->post_content, true );
+		$is_global_styles_user_theme_json = isset( $raw_config['isGlobalStylesUserThemeJSON'] ) && true === $raw_config['isGlobalStylesUserThemeJSON'];
+		$config                           = array();
+		if ( $is_global_styles_user_theme_json ) {
+			$config = ( new WP_Theme_JSON( $raw_config, 'custom' ) )->get_raw_data();
+		}
+
+		// Base fields for every post.
+		$data   = array();
+		$fields = $this->get_fields_for_response( $request );
+
+		if ( rest_is_field_included( 'id', $fields ) ) {
+			$data['id'] = $post->ID;
+		}
+
+		if ( rest_is_field_included( 'title', $fields ) ) {
+			$data['title'] = array();
+		}
+		if ( rest_is_field_included( 'title.raw', $fields ) ) {
+			$data['title']['raw'] = $post->post_title;
+		}
+		if ( rest_is_field_included( 'title.rendered', $fields ) ) {
+			add_filter( 'protected_title_format', array( $this, 'protected_title_format' ) );
+
+			$data['title']['rendered'] = get_the_title( $post->ID );
+
+			remove_filter( 'protected_title_format', array( $this, 'protected_title_format' ) );
+		}
+
+		if ( rest_is_field_included( 'settings', $fields ) ) {
+			$data['settings'] = ! empty( $config['settings'] ) && $is_global_styles_user_theme_json ? $config['settings'] : new stdClass();
+		}
+
+		if ( rest_is_field_included( 'styles', $fields ) ) {
+			$data['styles'] = ! empty( $config['styles'] ) && $is_global_styles_user_theme_json ? $config['styles'] : new stdClass();
+		}
+
+		$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 );
+
+		$links = $this->prepare_links( $post->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;
+	}
+
+	/**
+	 * Get the post, if the ID is valid.
+	 *
+	 * @since 5.9.0
+	 *
+	 * @param int $id Supplied ID.
+	 * @return WP_Post|WP_Error Post object if ID is valid, WP_Error otherwise.
+	 */
+	protected function get_post( $id ) {
+		$error = new WP_Error(
+			'rest_global_styles_not_found',
+			__( 'No global styles config exist with that id.' ),
+			array( 'status' => 404 )
+		);
+
+		$id = (int) $id;
+		if ( $id <= 0 ) {
+			return $error;
+		}
+
+		$post = get_post( $id );
+		if ( empty( $post ) || empty( $post->ID ) || $this->post_type !== $post->post_type ) {
+			return $error;
+		}
+
+		return $post;
+	}
+
+
+	/**
+	 * Prepares links for the request.
+	 *
+	 * @since 5.9.0
+	 *
+	 * @param integer $id ID.
+	 * @return array Links for the given post.
+	 */
+	protected function prepare_links( $id ) {
+		$base = sprintf( '%s/%s', $this->namespace, $this->rest_base );
+
+		$links = array(
+			'self' => array(
+				'href' => rest_url( trailingslashit( $base ) . $id ),
+			),
+		);
+
+		return $links;
+	}
+
+	/**
+	 * Get the link relations available for the post and current user.
+	 *
+	 * @since 5.9.0
+	 *
+	 * @return array List of link relations.
+	 */
+	protected function get_available_actions() {
+		$rels = array();
+
+		$post_type = get_post_type_object( $this->post_type );
+		if ( current_user_can( $post_type->cap->publish_posts ) ) {
+			$rels[] = 'https://api.w.org/action-publish';
+		}
+
+		return $rels;
+	}
+
+	/**
+	 * Overwrites the default protected title format.
+	 *
+	 * By default, WordPress will show password protected posts with a title of
+	 * "Protected: %s", as the REST API communicates the protected status of a post
+	 * in a machine readable format, we remove the "Protected: " prefix.
+	 *
+	 * @since 5.9.0
+	 *
+	 * @return string Protected title format.
+	 */
+	public function protected_title_format() {
+		return '%s';
+	}
+
+	/**
+	 * Retrieves the query params for the global styles collection.
+	 *
+	 * @since 5.9.0
+	 *
+	 * @return array Collection parameters.
+	 */
+	public function get_collection_params() {
+		return array();
+	}
+
+	/**
+	 * Retrieves the global styles type' schema, conforming to JSON Schema.
+	 *
+	 * @since 5.9.0
+	 *
+	 * @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'      => $this->post_type,
+			'type'       => 'object',
+			'properties' => array(
+				'id'       => array(
+					'description' => __( 'ID of global styles config.' ),
+					'type'        => 'string',
+					'context'     => array( 'embed', 'view', 'edit' ),
+					'readonly'    => true,
+				),
+				'styles'   => array(
+					'description' => __( 'Global styles.' ),
+					'type'        => array( 'object' ),
+					'context'     => array( 'view', 'edit' ),
+				),
+				'settings' => array(
+					'description' => __( 'Global settings.' ),
+					'type'        => array( 'object' ),
+					'context'     => array( 'view', 'edit' ),
+				),
+				'title'    => array(
+					'description' => __( 'Title of the global styles variation.' ),
+					'type'        => array( 'object', 'string' ),
+					'default'     => '',
+					'context'     => array( 'embed', 'view', 'edit' ),
+					'properties'  => array(
+						'raw'      => array(
+							'description' => __( 'Title for the global styles variation, as it exists in the database.' ),
+							'type'        => 'string',
+							'context'     => array( 'view', 'edit', 'embed' ),
+						),
+						'rendered' => array(
+							'description' => __( 'HTML title for the post, transformed for display.' ),
+							'type'        => 'string',
+							'context'     => array( 'view', 'edit', 'embed' ),
+							'readonly'    => true,
+						),
+					),
+				),
+			),
+		);
+
+		$this->schema = $schema;
+
+		return $this->add_additional_fields_schema( $this->schema );
+	}
+
+	/**
+	 * Checks if a given request has access to read a single theme global styles config.
+	 *
+	 * @since 5.9.0
+	 *
+	 * @param WP_REST_Request $request Full details about the request.
+	 * @return true|WP_Error True if the request has read access for the item, WP_Error object otherwise.
+	 */
+	public function get_theme_item_permissions_check( $request ) {
+		// Verify if the current user has edit_theme_options capability.
+		// This capability is required to edit/view/delete templates.
+		if ( ! current_user_can( 'edit_theme_options' ) ) {
+			return new WP_Error(
+				'rest_cannot_manage_global_styles',
+				__( 'Sorry, you are not allowed to access the global styles on this site.' ),
+				array(
+					'status' => rest_authorization_required_code(),
+				)
+			);
+		}
+
+		return true;
+	}
+
+	/**
+	 * Returns the given theme global styles config.
+	 *
+	 * @since 5.9.0
+	 *
+	 * @param WP_REST_Request $request The request instance.
+	 * @return WP_REST_Response|WP_Error
+	 */
+	public function get_theme_item( $request ) {
+		if ( wp_get_theme()->get_stylesheet() !== $request['stylesheet'] ) {
+			// This endpoint only supports the active theme for now.
+			return new WP_Error(
+				'rest_theme_not_found',
+				__( 'Theme not found.' ),
+				array( 'status' => 404 )
+			);
+		}
+
+		$theme  = WP_Theme_JSON_Resolver::get_merged_data( 'theme' );
+		$data   = array();
+		$fields = $this->get_fields_for_response( $request );
+
+		if ( rest_is_field_included( 'settings', $fields ) ) {
+			$data['settings'] = $theme->get_settings();
+		}
+
+		if ( rest_is_field_included( 'styles', $fields ) ) {
+			$raw_data       = $theme->get_raw_data();
+			$data['styles'] = isset( $raw_data['styles'] ) ? $raw_data['styles'] : array();
+		}
+
+		$context = ! empty( $request['context'] ) ? $request['context'] : 'view';
+		$data    = $this->add_additional_fields_to_object( $data, $request );
+		$data    = $this->filter_response_by_context( $data, $context );
+
+		$response = rest_ensure_response( $data );
+
+		$links = array(
+			'self' => array(
+				'href' => rest_url( sprintf( '%s/%s/themes/%s', $this->namespace, $this->rest_base, $request['stylesheet'] ) ),
+			),
+		);
+
+		$response->add_links( $links );
+
+		return $response;
+	}
+
+	/**
+	 * Checks if a given request has access to read a single theme global styles config.
+	 *
+	 * @since 6.0.0
+	 *
+	 * @param WP_REST_Request $request Full details about the request.
+	 * @return true|WP_Error True if the request has read access for the item, WP_Error object otherwise.
+	 */
+	public function get_theme_items_permissions_check( $request ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable
+		// Verify if the current user has edit_theme_options capability.
+		// This capability is required to edit/view/delete templates.
+		if ( ! current_user_can( 'edit_theme_options' ) ) {
+			return new WP_Error(
+				'rest_cannot_manage_global_styles',
+				__( 'Sorry, you are not allowed to access the global styles on this site.' ),
+				array(
+					'status' => rest_authorization_required_code(),
+				)
+			);
+		}
+
+		return true;
+	}
+
+	/**
+	 * Returns the given theme global styles variations.
+	 *
+	 * @since 6.0.0
+	 *
+	 * @param WP_REST_Request $request The request instance.
+	 *
+	 * @return WP_REST_Response|WP_Error
+	 */
+	public function get_theme_items( $request ) {
+		if ( wp_get_theme()->get_stylesheet() !== $request['stylesheet'] ) {
+			// This endpoint only supports the active theme for now.
+			return new WP_Error(
+				'rest_theme_not_found',
+				__( 'Theme not found.' ),
+				array( 'status' => 404 )
+			);
+		}
+
+		$variations = WP_Theme_JSON_Resolver::get_style_variations();
+		$response   = rest_ensure_response( $variations );
+
+		return $response;
+	}
+}