wordpress-activitypub/includes/rest/class-outbox.php
Matthias Pfefferle d7d6ebbc1f remove comments
@mattwiebe maybe you can add them as issues
2023-05-19 11:43:54 +02:00

153 lines
4 KiB
PHP

<?php
namespace Activitypub\Rest;
use function Activitypub\get_rest_url_by_path;
/**
* ActivityPub Outbox REST-Class
*
* @author Matthias Pfefferle
*
* @see https://www.w3.org/TR/activitypub/#outbox
*/
class Outbox {
/**
* 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+)/outbox',
array(
array(
'methods' => \WP_REST_Server::READABLE,
'callback' => array( self::class, 'user_outbox_get' ),
'args' => self::request_parameters(),
'permission_callback' => '__return_true',
),
)
);
}
/**
* Renders the user-outbox
*
* @param WP_REST_Request $request
* @return WP_REST_Response
*/
public static function user_outbox_get( $request ) {
$user_id = $request->get_param( 'user_id' );
$author = \get_user_by( 'ID', $user_id );
$post_types = \get_option( 'activitypub_support_post_types', array( 'post', 'page' ) );
if ( ! $author ) {
return new \WP_Error(
'rest_invalid_param',
\__( 'User not found', 'activitypub' ),
array(
'status' => 404,
'params' => array(
'user_id' => \__( 'User not found', 'activitypub' ),
),
)
);
}
$page = $request->get_param( 'page', 0 );
/*
* 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_by_path( sprintf( 'users/%d/outbox', $user_id ) ); // phpcs:ignore
$json->totalItems = 0; // phpcs:ignore
// phpcs:ignore
$json->totalItems = 0;
// We can query this more directly based on the supplied post types.
// And cache these counts and invalidate them on publish_post.
foreach ( $post_types as $post_type ) {
$count_posts = \wp_count_posts( $post_type );
$json->totalItems += \intval( $count_posts->publish ); // phpcs:ignore
}
$json->first = \add_query_arg( 'page', 1, $json->partOf ); // phpcs:ignore
$json->last = \add_query_arg( 'page', \ceil ( $json->totalItems / 10 ), $json->partOf ); // phpcs:ignore
if ( $page && ( ( \ceil ( $json->totalItems / 10 ) ) > $page ) ) { // phpcs:ignore
$json->next = \add_query_arg( 'page', $page + 1, $json->partOf ); // phpcs:ignore
}
if ( $page ) {
$posts = \get_posts(
array(
'posts_per_page' => 10,
'author' => $user_id,
'offset' => ( $page - 1 ) * 10,
'post_type' => $post_types,
)
);
foreach ( $posts as $post ) {
$activitypub_post = new \Activitypub\Model\Post( $post );
$activitypub_activity = new \Activitypub\Model\Activity( 'Create', false );
$activitypub_activity->from_post( $activitypub_post );
$json->orderedItems[] = $activitypub_activity->to_array(); // phpcs:ignore
}
}
// filter output
$json = \apply_filters( 'activitypub_outbox_array', $json );
/*
* Action triggerd after the ActivityPub profile has been created and sent to the client
*/
\do_action( 'activitypub_outbox_post' );
$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;
}
}