change_wp_user_id( $user_id ); } $user_id = $transformer->get_wp_user_id(); if ( is_user_disabled( $user_id ) ) { return; } $activity = $transformer->to_activity( $type ); self::send_activity_to_followers( $activity, $user_id, $wp_object ); } /** * Send Announces to followers and mentioned users. * * @param mixed $wp_object The ActivityPub Post. * @param string $type The Activity-Type. * * @return void */ public static function send_announce( $wp_object, $type ) { if ( ! in_array( $type, array( 'Create', 'Update' ), true ) ) { return; } if ( is_user_disabled( Users::BLOG_USER_ID ) ) { return; } // do not announce replies if ( $wp_object instanceof WP_Comment ) { return; } $transformer = Factory::get_transformer( $wp_object ); $transformer->change_wp_user_id( Users::BLOG_USER_ID ); $user_id = $transformer->get_wp_user_id(); $activity = $transformer->to_activity( 'Announce' ); self::send_activity_to_followers( $activity, $user_id, $wp_object ); } /** * Send a "Update" Activity when a user updates their profile. * * @param int $user_id The user ID to send an update for. * * @return void */ public static function send_profile_update( $user_id ) { $user = Users::get_by_various( $user_id ); // bail if that's not a good user if ( is_wp_error( $user ) ) { return; } // build the update $activity = new Activity(); $activity->set_id( $user->get_url() . '#update' ); $activity->set_type( 'Update' ); $activity->set_actor( $user->get_url() ); $activity->set_object( $user->get_url() ); $activity->set_to( 'https://www.w3.org/ns/activitystreams#Public' ); // send the update self::send_activity_to_followers( $activity, $user_id, $user ); } /** * Send an Activity to all followers and mentioned users. * * @param Activity $activity The ActivityPub Activity. * @param int $user_id The user ID. * @param WP_User|WP_Post|WP_Comment $wp_object The WordPress object. * * @return void */ private static function send_activity_to_followers( $activity, $user_id, $wp_object ) { // check if the Activity should be send to the followers if ( ! apply_filters( 'activitypub_send_activity_to_followers', true, $activity, $user_id, $wp_object ) ) { return; } $follower_inboxes = Followers::get_inboxes( $user_id ); $mentioned_inboxes = array(); $cc = $activity->get_cc(); if ( $cc ) { $mentioned_inboxes = Mention::get_inboxes( $cc ); } $inboxes = array_merge( $follower_inboxes, $mentioned_inboxes ); $inboxes = array_unique( $inboxes ); if ( empty( $inboxes ) ) { return; } $json = $activity->to_json(); foreach ( $inboxes as $inbox ) { safe_remote_post( $inbox, $json, $user_id ); } set_wp_object_state( $wp_object, 'federated' ); } /** * Send a "Create" or "Update" Activity for a WordPress Post. * * @param int $id The WordPress Post ID. * @param string $type The Activity-Type. * * @return void */ public static function send_post( $id, $type ) { $post = get_post( $id ); if ( ! $post ) { return; } do_action( 'activitypub_send_activity', $post, $type ); do_action( sprintf( 'activitypub_send_%s_activity', \strtolower( $type ) ), $post ); } /** * Send a "Create" or "Update" Activity for a WordPress Comment. * * @param int $id The WordPress Comment ID. * @param string $type The Activity-Type. * * @return void */ public static function send_comment( $id, $type ) { $comment = get_comment( $id ); if ( ! $comment ) { return; } do_action( 'activitypub_send_activity', $comment, $type ); do_action( sprintf( 'activitypub_send_%s_activity', \strtolower( $type ) ), $comment ); } }