updated plugin ActivityPub version 3.3.3

wp-content/plugins/activitypub/includes/handler/class-undo.php

@@ -1,17 +1,24 @@
 <?php
+/**
+ * Undo handler file.
+ *
+ * @package Activitypub
+ */
+
 namespace Activitypub\Handler;
 
 use Activitypub\Collection\Users;
 use Activitypub\Collection\Followers;
+use Activitypub\Comment;
 
 use function Activitypub\object_to_uri;
 
 /**
- * Handle Undo requests
+ * Handle Undo requests.
  */
 class Undo {
 	/**
-	 * Initialize the class, registering WordPress hooks
+	 * Initialize the class, registering WordPress hooks.
 	 */
 	public static function init() {
 		\add_action(
@@ -21,23 +28,27 @@ class Undo {
 	}
 
 	/**
-	 * Handle "Unfollow" requests
+	 * Handle "Unfollow" requests.
 	 *
-	 * @param array $activity The JSON "Undo" Activity
-	 * @param int   $user_id  The ID of the ID of the WordPress User
+	 * @param array $activity The JSON "Undo" Activity.
 	 */
 	public static function handle_undo( $activity ) {
 		if (
-			isset( $activity['object']['type'] ) &&
-			'Follow' === $activity['object']['type'] &&
-			isset( $activity['object']['object'] )
+			! isset( $activity['object']['type'] ) ||
+			! isset( $activity['object']['object'] )
 		) {
+			return;
+		}
+
+		$type = $activity['object']['type'];
+
+		// Handle "Unfollow" requests.
+		if ( 'Follow' === $type ) {
 			$user_id = object_to_uri( $activity['object']['object'] );
-			$user = Users::get_by_resource( $user_id );
+			$user    = Users::get_by_resource( $user_id );
 
 			if ( ! $user || is_wp_error( $user ) ) {
-				// If we can not find a user,
-				// we can not initiate a follow process
+				// If we can not find a user, we can not initiate a follow process.
 				return;
 			}
 
@@ -46,5 +57,23 @@ class Undo {
 
 			Followers::remove_follower( $user_id, $actor );
 		}
+
+		// Handle "Undo" requests for "Like" and "Create" activities.
+		if ( in_array( $type, array( 'Like', 'Create', 'Announce' ), true ) ) {
+			if ( ACTIVITYPUB_DISABLE_INCOMING_INTERACTIONS ) {
+				return;
+			}
+
+			$object_id = object_to_uri( $activity['object'] );
+			$comment   = Comment::object_id_to_comment( esc_url_raw( $object_id ) );
+
+			if ( empty( $comment ) ) {
+				return;
+			}
+
+			$state = wp_trash_comment( $comment );
+
+			do_action( 'activitypub_handled_undo', $activity, $user_id, isset( $state ) ? $state : null, null );
+		}
 	}
 }