wordpress-activitypub/includes/class-rest-activitypub-outbox.php
Matthias Pfefferle 4e653f5f75 0.1.0
* added basic WebFinger support
* added basic NodeInfo support
* fully functional "follow" activity
* send new posts to your followers
* receive comments from your followers
2018-12-20 11:33:08 +01:00

127 lines
3.5 KiB
PHP

<?php
/**
* ActivityPub Outbox Class
*
* @author Matthias Pfefferle
*/
class Rest_Activitypub_Outbox {
/**
* Register routes
*/
public static function register_routes() {
register_rest_route(
'activitypub/1.0', '/users/(?P<id>\d+)/outbox', array(
array(
'methods' => WP_REST_Server::READABLE,
'callback' => array( 'Rest_Activitypub_Outbox', 'user_outbox' ),
'args' => self::request_parameters(),
),
)
);
}
/**
* Renders the user-outbox
*
* @param WP_REST_Request $request
* @return WP_REST_Response
*/
public static function user_outbox( $request ) {
$user_id = $request->get_param( 'id' );
$author = get_user_by( 'ID', $user_id );
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'} = get_activitypub_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';
$json->partOf = get_rest_url( null, "/activitypub/1.0/users/$user_id/outbox" ); // phpcs:ignore
$count_posts = wp_count_posts();
$json->totalItems = intval( $count_posts->publish );
$posts = get_posts( array(
'posts_per_page' => 10,
'author' => $user_id,
'offset' => $page * 10,
) );
$json->first = add_query_arg( 'page', 0, $json->partOf );
$json->last = add_query_arg( 'page', ( ceil ( $json->totalItems / 10 ) ) - 1, $json->partOf );
if ( ( ceil ( $json->totalItems / 10 ) ) - 1 > $page ) {
$json->next = add_query_arg( 'page', ++$page, $json->partOf );
}
foreach ( $posts as $post ) {
$activitypub_post = new Activitypub_Post( $post );
$activitypub_activity = new Activitypub_Activity( 'Create', Activitypub_Activity::TYPE_NONE );
$activitypub_activity->from_post( $activitypub_post->to_array() );
$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;
}
public static function request_parameters() {
$params = array();
$params['page'] = array(
'type' => 'integer',
);
$params['id'] = array(
'required' => true,
'type' => 'integer',
);
return $params;
}
public static function send_post_activity( $post_id ) {
$post = get_post( $post_id );
$user_id = $post->post_author;
$activitypub_post = new Activitypub_Post( $post );
$activitypub_activity = new Activitypub_Activity( 'Create', Activitypub_Activity::TYPE_FULL );
$activitypub_activity->from_post( $activitypub_post->to_array() );
$activity = $activitypub_activity->to_json(); // phpcs:ignore
$followers = Db_Activitypub_Followers::get_followers( $user_id );
foreach ( activitypub_get_follower_inboxes( $user_id, $followers ) as $inbox ) {
$response = activitypub_safe_remote_post( $inbox, $activity, $user_id );
}
}
}