91 lines
2.1 KiB
PHP
91 lines
2.1 KiB
PHP
<?php
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/**
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* Undo 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\Actors;
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use Activitypub\Collection\Followers;
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use Activitypub\Comment;
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use function Activitypub\object_to_uri;
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/**
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* Handle Undo requests.
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*/
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class Undo {
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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(
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'activitypub_inbox_undo',
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array( self::class, 'handle_undo' ),
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10,
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2
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);
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}
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/**
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* Handle "Unfollow" requests.
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*
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* @param array $activity The JSON "Undo" Activity.
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* @param int|null $user_id The ID of the user who initiated the "Undo" activity.
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*/
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public static function handle_undo( $activity, $user_id ) {
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if (
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! isset( $activity['object']['type'] ) ||
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! isset( $activity['object']['object'] )
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) {
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return;
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}
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$type = $activity['object']['type'];
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$state = false;
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// Handle "Unfollow" requests.
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if ( 'Follow' === $type ) {
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$id = object_to_uri( $activity['object']['object'] );
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$user = Actors::get_by_resource( $id );
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if ( ! $user || is_wp_error( $user ) ) {
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// If we can not find a user, we can not initiate a follow process.
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return;
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}
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$user_id = $user->get__id();
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$actor = object_to_uri( $activity['actor'] );
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$state = Followers::remove_follower( $user_id, $actor );
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}
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// Handle "Undo" requests for "Like" and "Create" activities.
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if ( in_array( $type, array( 'Like', 'Create', 'Announce' ), true ) ) {
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if ( ACTIVITYPUB_DISABLE_INCOMING_INTERACTIONS ) {
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return;
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}
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$object_id = object_to_uri( $activity['object'] );
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$comment = Comment::object_id_to_comment( esc_url_raw( $object_id ) );
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if ( empty( $comment ) ) {
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return;
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}
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$state = wp_delete_comment( $comment, true );
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}
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/**
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* Fires after an "Undo" activity has been handled.
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*
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* @param array $activity The JSON "Undo" Activity.
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* @param int|null $user_id The ID of the user who initiated the "Undo" activity otherwise null.
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* @param mixed $state The state of the "Undo" activity.
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*/
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do_action( 'activitypub_handled_undo', $activity, $user_id, $state );
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}
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}
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