108 lines
2.9 KiB
PHP
108 lines
2.9 KiB
PHP
<?php
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/**
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* Reject handler file.
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*
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* @package Activitypub
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*/
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namespace Activitypub\Handler;
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use Activitypub\Collection\Following;
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use Activitypub\Collection\Outbox;
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use Activitypub\Collection\Remote_Actors;
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use function Activitypub\object_to_uri;
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/**
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* Handle "Reject" requests.
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*/
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class Reject {
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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( 'activitypub_inbox_reject', array( self::class, 'handle_reject' ), 10, 2 );
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\add_filter( 'activitypub_validate_object', array( self::class, 'validate_object' ), 10, 3 );
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}
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/**
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* Handles "Reject" requests.
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*
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* @param array $reject The activity-object.
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* @param int|int[] $user_ids The user ID(s).
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*/
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public static function handle_reject( $reject, $user_ids ) {
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// Validate that there is a preceding Activity.
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$outbox_post = Outbox::get_by_guid( $reject['object']['id'] );
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if ( \is_wp_error( $outbox_post ) ) {
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return;
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}
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// We currently only support reject for Follow activities. But we will support more in the future.
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switch ( \get_post_meta( $outbox_post->ID, '_activitypub_activity_type', true ) ) {
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case 'Follow':
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self::reject_follow( $reject, $user_ids );
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break;
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default:
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break;
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}
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}
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/**
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* Reject a "Follow" request.
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*
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* @param array $reject The activity-object.
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* @param int|int[] $user_ids The user ID(s).
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*/
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private static function reject_follow( $reject, $user_ids ) {
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$actor_uri = $reject['object']['actor'] ?? '';
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$actor_post = Remote_Actors::get_by_uri( object_to_uri( $actor_uri ) );
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if ( \is_wp_error( $actor_post ) ) {
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return;
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}
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$user_id = is_array( $user_ids ) ? reset( $user_ids ) : $user_ids;
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$result = Following::reject( $actor_post, $user_id );
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$success = ! \is_wp_error( $result );
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/**
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* Fires after an ActivityPub Reject activity has been handled.
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*
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* @param array $reject The ActivityPub activity data.
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* @param int[] $user_ids The local user IDs.
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* @param bool $success True on success, false otherwise.
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* @param \WP_Post|\WP_Error $result Actor post on success, WP_Error on failure.
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*/
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\do_action( 'activitypub_handled_reject', $reject, (array) $user_ids, $success, $result );
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}
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/**
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* Validate the object.
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*
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* @param bool $valid The validation state.
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* @param string $param The object parameter.
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* @param \WP_REST_Request $request The request object.
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*
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* @return bool The validation state: true if valid, false if not.
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*/
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public static function validate_object( $valid, $param, $request ) {
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$activity = $request->get_json_params();
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if ( empty( $activity['type'] ) ) {
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return false;
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}
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if ( 'Reject' !== $activity['type'] ) {
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return $valid;
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}
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if ( ! isset( $activity['actor'], $activity['object'] ) ) {
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return false;
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}
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return $valid;
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}
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}
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