125 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			125 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
| <?php
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| namespace Activitypub\Rest;
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| 
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| use WP_Error;
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| use WP_REST_Response;
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| use Activitypub\Collection\Users as User_Collection;
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| 
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| /**
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|  * ActivityPub WebFinger REST-Class
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|  *
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|  * @author Matthias Pfefferle
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|  *
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|  * @see https://webfinger.net/
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|  */
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| class Webfinger {
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| 	/**
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| 	 * Initialize the class, registering WordPress hooks.
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| 	 *
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| 	 * @return void
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| 	 */
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| 	public static function init() {
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| 		self::register_routes();
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| 	}
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| 
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| 	/**
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| 	 * Register routes.
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| 	 *
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| 	 * @return void
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| 	 */
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| 	public static function register_routes() {
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| 		\register_rest_route(
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| 			ACTIVITYPUB_REST_NAMESPACE,
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| 			'/webfinger',
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| 			array(
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| 				array(
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| 					'methods'             => \WP_REST_Server::READABLE,
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| 					'callback'            => array( self::class, 'webfinger' ),
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| 					'args'                => self::request_parameters(),
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| 					'permission_callback' => '__return_true',
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| 				),
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| 			)
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| 		);
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| 	}
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| 
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| 	/**
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| 	 * WebFinger endpoint.
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| 	 *
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| 	 * @param WP_REST_Request $request The request object.
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| 	 *
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| 	 * @return WP_REST_Response The response object.
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| 	 */
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| 	public static function webfinger( $request ) {
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| 		/*
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| 		 * Action triggerd prior to the ActivityPub profile being created and sent to the client
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| 		 */
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| 		\do_action( 'activitypub_rest_webfinger_pre' );
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| 
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| 		$resource = $request->get_param( 'resource' );
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| 		$response = self::get_profile( $resource );
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| 
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| 		return new WP_REST_Response( $response, 200 );
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| 	}
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| 
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| 	/**
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| 	 * The supported parameters
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| 	 *
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| 	 * @return array list of parameters
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| 	 */
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| 	public static function request_parameters() {
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| 		$params = array();
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| 
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| 		$params['resource'] = array(
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| 			'required' => true,
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| 			'type' => 'string',
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| 			'pattern' => '^acct:(.+)@(.+)$',
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| 		);
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| 
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| 		return $params;
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| 	}
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| 
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| 	/**
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| 	 * Get the WebFinger profile.
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| 	 *
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| 	 * @param string $resource the WebFinger resource.
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| 	 *
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| 	 * @return array the WebFinger profile.
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| 	 */
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| 	public static function get_profile( $resource ) {
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| 		$user = User_Collection::get_by_resource( $resource );
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| 
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| 		if ( is_wp_error( $user ) ) {
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| 			return $user;
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| 		}
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| 
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| 		$aliases = array(
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| 			$user->get_url(),
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| 		);
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| 
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| 		$profile = array(
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| 			'subject' => $resource,
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| 			'aliases' => array_values( array_unique( $aliases ) ),
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| 			'links'   => array(
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| 				array(
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| 					'rel'  => 'self',
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| 					'type' => 'application/activity+json',
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| 					'href' => $user->get_url(),
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| 				),
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| 				array(
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| 					'rel'  => 'http://webfinger.net/rel/profile-page',
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| 					'type' => 'text/html',
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| 					'href' => $user->get_url(),
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| 				),
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| 			),
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| 		);
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| 
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| 		if ( 'Group' === $user->get_type() ) {
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| 			$profile['links'][0]['properties'] = array(
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| 				'https://www.w3.org/ns/activitystreams#type' => 'Group',
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| 			);
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| 		}
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| 
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| 		return $profile;
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| 	}
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| }
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