158 lines
4 KiB
PHP
158 lines
4 KiB
PHP
<?php
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namespace Activitypub\Rest;
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use stdClass;
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use WP_Error;
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use WP_REST_Server;
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use WP_REST_Response;
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use Activitypub\Model\Post;
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use Activitypub\Model\Activity;
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use function Activitypub\get_rest_url_by_path;
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/**
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* ActivityPub Outbox REST-Class
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*
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* @author Matthias Pfefferle
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*
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* @see https://www.w3.org/TR/activitypub/#outbox
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*/
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class Outbox {
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/**
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* Initialize the class, registering WordPress hooks
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*/
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public static function init() {
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\add_action( 'rest_api_init', array( self::class, 'register_routes' ) );
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}
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/**
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* Register routes
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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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'/users/(?P<user_id>\d+)/outbox',
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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, 'user_outbox_get' ),
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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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* Renders the user-outbox
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*
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* @param WP_REST_Request $request
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* @return WP_REST_Response
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*/
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public static function user_outbox_get( $request ) {
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$user_id = $request->get_param( 'user_id' );
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$author = \get_user_by( 'ID', $user_id );
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$post_types = \get_option( 'activitypub_support_post_types', array( 'post', 'page' ) );
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if ( ! $author ) {
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return new WP_Error(
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'rest_invalid_param',
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\__( 'User not found', 'activitypub' ),
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array(
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'status' => 404,
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'params' => array(
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'user_id' => \__( 'User not found', 'activitypub' ),
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),
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)
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);
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}
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$page = $request->get_param( 'page', 0 );
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/*
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* Action triggerd prior to the ActivityPub profile being created and sent to the client
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*/
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\do_action( 'activitypub_outbox_pre' );
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$json = new stdClass();
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$json->{'@context'} = get_context();
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$json->id = \home_url( \add_query_arg( null, null ) );
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$json->generator = 'http://wordpress.org/?v=' . \get_bloginfo_rss( 'version' );
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$json->actor = \get_author_posts_url( $user_id );
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$json->type = 'OrderedCollectionPage';
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$json->partOf = get_rest_url_by_path( sprintf( 'users/%d/outbox', $user_id ) ); // phpcs:ignore
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$json->totalItems = 0; // phpcs:ignore
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// phpcs:ignore
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$json->totalItems = 0;
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foreach ( $post_types as $post_type ) {
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$count_posts = \wp_count_posts( $post_type );
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$json->totalItems += \intval( $count_posts->publish ); // phpcs:ignore
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}
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$json->first = \add_query_arg( 'page', 1, $json->partOf ); // phpcs:ignore
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$json->last = \add_query_arg( 'page', \ceil ( $json->totalItems / 10 ), $json->partOf ); // phpcs:ignore
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if ( $page && ( ( \ceil ( $json->totalItems / 10 ) ) > $page ) ) { // phpcs:ignore
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$json->next = \add_query_arg( 'page', $page + 1, $json->partOf ); // phpcs:ignore
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}
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if ( $page ) {
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$posts = \get_posts(
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array(
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'posts_per_page' => 10,
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'author' => $user_id,
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'offset' => ( $page - 1 ) * 10,
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'post_type' => $post_types,
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)
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);
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foreach ( $posts as $post ) {
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$activitypub_post = new Post( $post );
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$activitypub_activity = new Activity( 'Create', false );
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$activitypub_activity->from_post( $activitypub_post );
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$json->orderedItems[] = $activitypub_activity->to_array(); // phpcs:ignore
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}
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}
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// filter output
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$json = \apply_filters( 'activitypub_outbox_array', $json );
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/*
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* Action triggerd after the ActivityPub profile has been created and sent to the client
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*/
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\do_action( 'activitypub_outbox_post' );
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$response = new WP_REST_Response( $json, 200 );
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$response->header( 'Content-Type', 'application/activity+json' );
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return $response;
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}
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/**
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* The supported parameters
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*
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* @return array list of parameters
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*/
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public static function request_parameters() {
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$params = array();
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$params['page'] = array(
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'type' => 'integer',
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);
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$params['user_id'] = array(
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'required' => true,
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'type' => 'integer',
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'validate_callback' => function( $param, $request, $key ) {
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return user_can( $param, 'publish_posts' );
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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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