128 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			128 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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namespace Activitypub\Rest;
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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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 * 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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	 * 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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	 * 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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		$resource = $request->get_param( 'resource' );
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		$response = self::get_profile( $resource );
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		return new WP_REST_Response( $response, 200 );
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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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		$params['resource'] = array(
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			'required' => true,
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			'type' => 'string',
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			'pattern' => '^(acct:)|^(https?://)(.+)$',
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		);
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		return $params;
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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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		if ( is_wp_error( $user ) ) {
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			return $user;
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		}
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		$aliases = array(
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			$user->get_url(),
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			$user->get_alternate_url(),
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		);
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		$aliases = array_unique( $aliases );
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		$profile = array(
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			'subject' => sprintf( 'acct:%s', $user->get_webfinger() ),
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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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		if ( 'Person' !== $user->get_type() ) {
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			$profile['links'][0]['properties'] = array(
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				'https://www.w3.org/ns/activitystreams#type' => $user->get_type(),
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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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