parent_post_type = 'wp_global_styles'; $this->rest_base = 'revisions'; $this->parent_base = 'global-styles'; $this->namespace = 'wp/v2'; } /** * Registers the controller's routes. * * @since 6.3.0 */ public function register_routes() { register_rest_route( $this->namespace, '/' . $this->parent_base . '/(?P[\d]+)/' . $this->rest_base, array( 'args' => array( 'parent' => array( 'description' => __( 'The ID for the parent of the revision.' ), 'type' => 'integer', ), ), array( 'methods' => WP_REST_Server::READABLE, 'callback' => array( $this, 'get_items' ), 'permission_callback' => array( $this, 'get_item_permissions_check' ), 'args' => $this->get_collection_params(), ), 'schema' => array( $this, 'get_public_item_schema' ), ) ); } /** * Retrieves the query params for collections. * * Inherits from WP_REST_Controller::get_collection_params(), * also reflects changes to return value WP_REST_Revisions_Controller::get_collection_params(). * * @since 6.3.0 * * @return array Collection parameters. */ public function get_collection_params() { $collection_params = parent::get_collection_params(); $collection_params['context']['default'] = 'view'; $collection_params['offset'] = array( 'description' => __( 'Offset the result set by a specific number of items.' ), 'type' => 'integer', ); unset( $collection_params['search'] ); unset( $collection_params['per_page']['default'] ); return $collection_params; } /** * Returns decoded JSON from post content string, * or a 404 if not found. * * @since 6.3.0 * * @param string $raw_json Encoded JSON from global styles custom post content. * @return Array|WP_Error */ protected function get_decoded_global_styles_json( $raw_json ) { $decoded_json = json_decode( $raw_json, true ); if ( is_array( $decoded_json ) && isset( $decoded_json['isGlobalStylesUserThemeJSON'] ) && true === $decoded_json['isGlobalStylesUserThemeJSON'] ) { return $decoded_json; } return new WP_Error( 'rest_global_styles_not_found', __( 'Cannot find user global styles revisions.' ), array( 'status' => 404 ) ); } /** * Returns paginated revisions of the given global styles config custom post type. * * The bulk of the body is taken from WP_REST_Revisions_Controller->get_items, * but global styles does not require as many parameters. * * @since 6.3.0 * * @param WP_REST_Request $request The request instance. * @return WP_REST_Response|WP_Error */ public function get_items( $request ) { $parent = $this->get_parent( $request['parent'] ); if ( is_wp_error( $parent ) ) { return $parent; } $global_styles_config = $this->get_decoded_global_styles_json( $parent->post_content ); if ( is_wp_error( $global_styles_config ) ) { return $global_styles_config; } if ( wp_revisions_enabled( $parent ) ) { $registered = $this->get_collection_params(); $query_args = array( 'post_parent' => $parent->ID, 'post_type' => 'revision', 'post_status' => 'inherit', 'posts_per_page' => -1, 'orderby' => 'date ID', 'order' => 'DESC', ); $parameter_mappings = array( 'offset' => 'offset', 'page' => 'paged', 'per_page' => 'posts_per_page', ); foreach ( $parameter_mappings as $api_param => $wp_param ) { if ( isset( $registered[ $api_param ], $request[ $api_param ] ) ) { $query_args[ $wp_param ] = $request[ $api_param ]; } } $revisions_query = new WP_Query(); $revisions = $revisions_query->query( $query_args ); $offset = isset( $query_args['offset'] ) ? (int) $query_args['offset'] : 0; $page = (int) $query_args['paged']; $total_revisions = $revisions_query->found_posts; if ( $total_revisions < 1 ) { // Out-of-bounds, run the query again without LIMIT for total count. unset( $query_args['paged'], $query_args['offset'] ); $count_query = new WP_Query(); $count_query->query( $query_args ); $total_revisions = $count_query->found_posts; } if ( $revisions_query->query_vars['posts_per_page'] > 0 ) { $max_pages = ceil( $total_revisions / (int) $revisions_query->query_vars['posts_per_page'] ); } else { $max_pages = $total_revisions > 0 ? 1 : 0; } if ( $total_revisions > 0 ) { if ( $offset >= $total_revisions ) { return new WP_Error( 'rest_revision_invalid_offset_number', __( 'The offset number requested is larger than or equal to the number of available revisions.' ), array( 'status' => 400 ) ); } elseif ( ! $offset && $page > $max_pages ) { return new WP_Error( 'rest_revision_invalid_page_number', __( 'The page number requested is larger than the number of pages available.' ), array( 'status' => 400 ) ); } } } else { $revisions = array(); $total_revisions = 0; $max_pages = 0; $page = (int) $request['page']; } $response = array(); foreach ( $revisions as $revision ) { $data = $this->prepare_item_for_response( $revision, $request ); $response[] = $this->prepare_response_for_collection( $data ); } $response = rest_ensure_response( $response ); $response->header( 'X-WP-Total', (int) $total_revisions ); $response->header( 'X-WP-TotalPages', (int) $max_pages ); $request_params = $request->get_query_params(); $base_path = rest_url( sprintf( '%s/%s/%d/%s', $this->namespace, $this->parent_base, $request['parent'], $this->rest_base ) ); $base = add_query_arg( urlencode_deep( $request_params ), $base_path ); if ( $page > 1 ) { $prev_page = $page - 1; if ( $prev_page > $max_pages ) { $prev_page = $max_pages; } $prev_link = add_query_arg( 'page', $prev_page, $base ); $response->link_header( 'prev', $prev_link ); } if ( $max_pages > $page ) { $next_page = $page + 1; $next_link = add_query_arg( 'page', $next_page, $base ); $response->link_header( 'next', $next_link ); } return $response; } /** * Checks the post_date_gmt or modified_gmt and prepare any post or * modified date for single post output. * * Duplicate of WP_REST_Revisions_Controller::prepare_date_response. * * @since 6.3.0 * * @param string $date_gmt GMT publication time. * @param string|null $date Optional. Local publication time. Default null. * @return string|null ISO8601/RFC3339 formatted datetime, otherwise null. */ protected function prepare_date_response( $date_gmt, $date = null ) { if ( '0000-00-00 00:00:00' === $date_gmt ) { return null; } if ( isset( $date ) ) { return mysql_to_rfc3339( $date ); } return mysql_to_rfc3339( $date_gmt ); } /** * Prepares the revision for the REST response. * * @since 6.3.0 * * @param WP_Post $post Post revision object. * @param WP_REST_Request $request Request object. * @return WP_REST_Response|WP_Error Response object. */ public function prepare_item_for_response( $post, $request ) { $parent = $this->get_parent( $request['parent'] ); $global_styles_config = $this->get_decoded_global_styles_json( $post->post_content ); if ( is_wp_error( $global_styles_config ) ) { return $global_styles_config; } $fields = $this->get_fields_for_response( $request ); $data = array(); if ( ! empty( $global_styles_config['styles'] ) || ! empty( $global_styles_config['settings'] ) ) { $global_styles_config = ( new WP_Theme_JSON( $global_styles_config, 'custom' ) )->get_raw_data(); if ( rest_is_field_included( 'settings', $fields ) ) { $data['settings'] = ! empty( $global_styles_config['settings'] ) ? $global_styles_config['settings'] : new stdClass(); } if ( rest_is_field_included( 'styles', $fields ) ) { $data['styles'] = ! empty( $global_styles_config['styles'] ) ? $global_styles_config['styles'] : new stdClass(); } } if ( rest_is_field_included( 'author', $fields ) ) { $data['author'] = (int) $post->post_author; } if ( rest_is_field_included( 'date', $fields ) ) { $data['date'] = $this->prepare_date_response( $post->post_date_gmt, $post->post_date ); } if ( rest_is_field_included( 'date_gmt', $fields ) ) { $data['date_gmt'] = $this->prepare_date_response( $post->post_date_gmt ); } if ( rest_is_field_included( 'id', $fields ) ) { $data['id'] = (int) $post->ID; } if ( rest_is_field_included( 'modified', $fields ) ) { $data['modified'] = $this->prepare_date_response( $post->post_modified_gmt, $post->post_modified ); } if ( rest_is_field_included( 'modified_gmt', $fields ) ) { $data['modified_gmt'] = $this->prepare_date_response( $post->post_modified_gmt ); } if ( rest_is_field_included( 'parent', $fields ) ) { $data['parent'] = (int) $parent->ID; } $context = ! empty( $request['context'] ) ? $request['context'] : 'view'; $data = $this->add_additional_fields_to_object( $data, $request ); $data = $this->filter_response_by_context( $data, $context ); return rest_ensure_response( $data ); } /** * Retrieves the revision's schema, conforming to JSON Schema. * * @since 6.3.0 * * @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->parent_post_type}-revision", 'type' => 'object', // Base properties for every revision. 'properties' => array( /* * Adds settings and styles from the WP_REST_Revisions_Controller item fields. * Leaves out GUID as global styles shouldn't be accessible via URL. */ 'author' => array( 'description' => __( 'The ID for the author of the revision.' ), 'type' => 'integer', 'context' => array( 'view', 'edit', 'embed' ), ), 'date' => array( 'description' => __( "The date the revision was published, in the site's timezone." ), 'type' => 'string', 'format' => 'date-time', 'context' => array( 'view', 'edit', 'embed' ), ), 'date_gmt' => array( 'description' => __( 'The date the revision was published, as GMT.' ), 'type' => 'string', 'format' => 'date-time', 'context' => array( 'view', 'edit' ), ), 'id' => array( 'description' => __( 'Unique identifier for the revision.' ), 'type' => 'integer', 'context' => array( 'view', 'edit', 'embed' ), ), 'modified' => array( 'description' => __( "The date the revision was last modified, in the site's timezone." ), 'type' => 'string', 'format' => 'date-time', 'context' => array( 'view', 'edit' ), ), 'modified_gmt' => array( 'description' => __( 'The date the revision was last modified, as GMT.' ), 'type' => 'string', 'format' => 'date-time', 'context' => array( 'view', 'edit' ), ), 'parent' => array( 'description' => __( 'The ID for the parent of the revision.' ), 'type' => 'integer', 'context' => array( 'view', 'edit', 'embed' ), ), // Adds settings and styles from the WP_REST_Global_Styles_Controller parent schema. 'styles' => array( 'description' => __( 'Global styles.' ), 'type' => array( 'object' ), 'context' => array( 'view', 'edit' ), ), 'settings' => array( 'description' => __( 'Global settings.' ), 'type' => array( 'object' ), 'context' => array( 'view', 'edit' ), ), ), ); $this->schema = $schema; return $this->add_additional_fields_schema( $this->schema ); } /** * Checks if a given request has access to read a single global style. * * @since 6.3.0 * * @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_parent( $request['parent'] ); if ( is_wp_error( $post ) ) { return $post; } /* * The same check as WP_REST_Global_Styles_Controller::get_item_permissions_check. */ if ( ! current_user_can( 'read_post', $post->ID ) ) { return new WP_Error( 'rest_cannot_view', __( 'Sorry, you are not allowed to view revisions for this global style.' ), array( 'status' => rest_authorization_required_code() ) ); } return true; } /** * Gets the parent post, if the ID is valid. * * Duplicate of WP_REST_Revisions_Controller::get_parent. * * @since 6.3.0 * * @param int $parent_post_id Supplied ID. * @return WP_Post|WP_Error Post object if ID is valid, WP_Error otherwise. */ protected function get_parent( $parent_post_id ) { $error = new WP_Error( 'rest_post_invalid_parent', __( 'Invalid post parent ID.' ), array( 'status' => 404 ) ); if ( (int) $parent_post_id <= 0 ) { return $error; } $parent_post = get_post( (int) $parent_post_id ); if ( empty( $parent_post ) || empty( $parent_post->ID ) || $this->parent_post_type !== $parent_post->post_type ) { return $error; } return $parent_post; } }