modified file w3-total-cache

wp-content/upgrade-temp-backup/plugins/activitypub/includes/handler/class-follow.php

@@ -14,8 +14,17 @@ class Follow {
 	 * Initialize the class, registering WordPress hooks
 	 */
 	public static function init() {
-		\add_action( 'activitypub_inbox_follow', array( self::class, 'handle_follow' ), 10, 2 );
-		\add_action( 'activitypub_followers_post_follow', array( self::class, 'send_follow_response' ), 10, 4 );
+		\add_action(
+			'activitypub_inbox_follow',
+			array( self::class, 'handle_follow' )
+		);
+
+		\add_action(
+			'activitypub_followers_post_follow',
+			array( self::class, 'send_follow_response' ),
+			10,
+			4
+		);
 	}
 
 	/**
@@ -24,11 +33,30 @@ class Follow {
 	 * @param array $activity The activity object
 	 * @param int   $user_id  The user ID
 	 */
-	public static function handle_follow( $activity, $user_id ) {
-		// save follower
-		$follower = Followers::add_follower( $user_id, $activity['actor'] );
+	public static function handle_follow( $activity ) {
+		$user = Users::get_by_resource( $activity['object'] );
 
-		do_action( 'activitypub_followers_post_follow', $activity['actor'], $activity, $user_id, $follower );
+		if ( ! $user || is_wp_error( $user ) ) {
+			// If we can not find a user,
+			// we can not initiate a follow process
+			return;
+		}
+
+		$user_id = $user->get__id();
+
+		// save follower
+		$follower = Followers::add_follower(
+			$user_id,
+			$activity['actor']
+		);
+
+		do_action(
+			'activitypub_followers_post_follow',
+			$activity['actor'],
+			$activity,
+			$user_id,
+			$follower
+		);
 	}
 
 	/**