modified file upgrade-temp-backup

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

@@ -0,0 +1,85 @@
+<?php
+/**
+ * Undo handler file.
+ *
+ * @package Activitypub
+ */
+
+namespace Activitypub\Handler;
+
+use Activitypub\Collection\Inbox as Inbox_Collection;
+
+use function Activitypub\object_to_uri;
+
+/**
+ * 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 );
+		\add_action( 'activitypub_validate_object', array( self::class, 'validate_object' ), 10, 3 );
+	}
+
+	/**
+	 * Handle "Unfollow" requests.
+	 *
+	 * @param array          $activity The JSON "Undo" Activity.
+	 * @param int|int[]|null $user_ids The user ID(s).
+	 */
+	public static function handle_undo( $activity, $user_ids ) {
+		$success = false;
+		$result  = Inbox_Collection::undo( object_to_uri( $activity['object'] ) );
+
+		if ( $result && ! \is_wp_error( $result ) ) {
+			$success = true;
+		}
+
+		/**
+		 * Fires after an ActivityPub Undo activity has been handled.
+		 *
+		 * @param array              $activity The ActivityPub activity data.
+		 * @param int[]              $user_ids The local user IDs.
+		 * @param bool               $success  True on success, false on failure.
+		 * @param \WP_Comment|string $result   The target, based on the activity that is being undone.
+		 */
+		\do_action( 'activitypub_handled_undo', $activity, (array) $user_ids, $success, $result );
+	}
+
+	/**
+	 * Validate the object.
+	 *
+	 * @param bool             $valid   The validation state.
+	 * @param string           $param   The object parameter.
+	 * @param \WP_REST_Request $request The request object.
+	 *
+	 * @return bool The validation state: true if valid, false if not.
+	 */
+	public static function validate_object( $valid, $param, $request ) {
+		$activity = $request->get_json_params();
+
+		if ( empty( $activity['type'] ) ) {
+			return false;
+		}
+
+		if ( 'Undo' !== $activity['type'] ) {
+			return $valid;
+		}
+
+		if ( ! isset( $activity['actor'], $activity['object'] ) ) {
+			return false;
+		}
+
+		if ( ! \is_array( $activity['object'] ) && ! \is_string( $activity['object'] ) ) {
+			return false;
+		}
+
+		if ( \is_array( $activity['object'] ) && ! isset( $activity['object']['id'] ) ) {
+			return false;
+		}
+
+		return $valid;
+	}
+}