updated plugin ActivityPub version 1.3.0

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

@@ -0,0 +1,31 @@
+<?php
+namespace Activitypub\Handler;
+
+use Activitypub\Collection\Followers;
+
+/**
+ * Handle Undo requests
+ */
+class Undo {
+	/**
+	 * Initialize the class, registering WordPress hooks
+	 */
+	public static function init() {
+		\add_action( 'activitypub_inbox_undo', array( self::class, 'handle_undo' ), 10, 2 );
+	}
+
+	/**
+	 * Handle "Unfollow" requests
+	 *
+	 * @param array $activity The JSON "Undo" Activity
+	 * @param int   $user_id  The ID of the ID of the WordPress User
+	 */
+	public static function handle_undo( $activity, $user_id ) {
+		if (
+			isset( $activity['object']['type'] ) &&
+			'Follow' === $activity['object']['type']
+		) {
+			Followers::remove_follower( $user_id, $activity['actor'] );
+		}
+	}
+}