wordpress-activitypub/includes/rest/class-followers.php

114 lines
2.8 KiB
PHP

<?php
namespace Activitypub\Rest;
use WP_Error;
use stdClass;
use WP_REST_Server;
use WP_REST_Response;
use Activitypub\Collection\Followers as FollowerCollection;
/**
* ActivityPub Followers REST-Class
*
* @author Matthias Pfefferle
*
* @see https://www.w3.org/TR/activitypub/#followers
*/
class Followers {
/**
* Initialize the class, registering WordPress hooks
*/
public static function init() {
\add_action( 'rest_api_init', array( self::class, 'register_routes' ) );
}
/**
* Register routes
*/
public static function register_routes() {
\register_rest_route(
ACTIVITYPUB_REST_NAMESPACE,
'/users/(?P<user_id>\d+)/followers',
array(
array(
'methods' => WP_REST_Server::READABLE,
'callback' => array( self::class, 'get' ),
'args' => self::request_parameters(),
'permission_callback' => '__return_true',
),
)
);
}
/**
* Handle GET request
*
* @param WP_REST_Request $request
*
* @return WP_REST_Response
*/
public static function get( $request ) {
$user_id = $request->get_param( 'user_id' );
$user = \get_user_by( 'ID', $user_id );
if ( ! $user ) {
return new WP_Error(
'rest_invalid_param',
\__( 'User not found', 'activitypub' ),
array(
'status' => 404,
'params' => array(
'user_id' => \__( 'User not found', 'activitypub' ),
),
)
);
}
/*
* Action triggerd prior to the ActivityPub profile being created and sent to the client
*/
\do_action( 'activitypub_outbox_pre' );
$json = new stdClass();
$json->{'@context'} = \Activitypub\get_context();
$json->id = \home_url( \add_query_arg( null, null ) );
$json->generator = 'http://wordpress.org/?v=' . \get_bloginfo_rss( 'version' );
$json->actor = \get_author_posts_url( $user_id );
$json->type = 'OrderedCollectionPage';
$json->partOf = \get_rest_url( null, sprintf( '/%s/users/%d/followers', ACTIVITYPUB_REST_NAMESPACE, $user_id ) ); // phpcs:ignore
$json->first = $json->partOf; // phpcs:ignore
$json->totalItems = FollowerCollection::count_followers( $user_id ); // phpcs:ignore
$json->orderedItems = FollowerCollection::get_followers( $user_id, ARRAY_N ); // phpcs:ignore
$response = new WP_REST_Response( $json, 200 );
$response->header( 'Content-Type', 'application/activity+json' );
return $response;
}
/**
* The supported parameters
*
* @return array list of parameters
*/
public static function request_parameters() {
$params = array();
$params['page'] = array(
'type' => 'integer',
);
$params['user_id'] = array(
'required' => true,
'type' => 'integer',
'validate_callback' => function( $param, $request, $key ) {
return user_can( $param, 'publish_posts' );
},
);
return $params;
}
}