; rel="%s"', $url, $rel ), $replace ); } /* * Returns a marked up HTML link header. * * @param string $url URL for the link * @param string $rel Rel property for the link * @return string Marked up HTML link to add to head */ public static function get_html_header( $url, $rel ) { return sprintf( '' . PHP_EOL, $rel, $url ); } /** * Hooks into the REST API output to add a metadata header to the Issuer URL. * * @param bool $served Whether the request has already been served. * @param WP_HTTP_ResponseInterface $result Result to send to the client. Usually a WP_REST_Response. * @param WP_REST_Request $request Request used to generate the response. * @param WP_REST_Server $server Server instance. * * @return true */ public static function serve_request( $served, $result, $request, $server ) { if ( ! str_contains( $request->get_route(), '/indieauth/1.0' ) ) { return $served; } static::set_http_header( static::get_endpoint(), 'indieauth-metadata' ); return $served; } /** * Add authentication information into the REST API Index * * @param WP_REST_Response $response REST API Response Object * * @return WP_REST_Response Response object with endpoint info added **/ public function register_index( WP_REST_Response $response ) { $data = $response->get_data(); $endpoints = array( 'metadata' => $this->get_endpoint(), ); $endpoints = array_filter( $endpoints ); if ( empty( $endpoints ) ) { return $response; } $data['authentication']['indieauth'] = array( 'endpoints' => apply_filters( 'rest_index_indieauth_endpoints', $endpoints ), ); $response->set_data( $data ); return $response; } public function http_header() { if ( is_author() || is_front_page() ) { $this->set_http_header( static::get_endpoint(), 'indieauth-metadata' ); } } public function html_header() { $kses = array( 'link' => array( 'href' => array(), 'rel' => array(), ), ); if ( is_author() || is_front_page() ) { echo wp_kses( $this->get_html_header( static::get_endpoint(), 'indieauth-metadata' ), $kses ); } } /** * Register the Route. */ public function register_routes() { register_rest_route( 'indieauth/1.0', '/metadata', array( array( 'methods' => WP_REST_Server::READABLE, 'callback' => array( $this, 'metadata' ), 'args' => array(), 'permission_callback' => '__return_true', ), ) ); } /** * Metadata Endpoint GET request handler. * * @param WP_REST_Request $request The Request Object. * @return Response to Return to the REST Server. **/ public function metadata( $request ) { $metadata = array( 'issuer' => indieauth_get_issuer(), 'scopes_supported' => IndieAuth_Plugin::$scopes->get_names(), 'service_documentation' => 'https://indieauth.spec.indieweb.org', 'code_challenge_methods_supported' => array( 'S256' ), ); $metadata = apply_filters( 'indieauth_metadata', $metadata ); return new WP_REST_Response( $metadata, 200, array( 'Content-Type' => 'application/json', ) ); } }