86 lines
2.2 KiB
PHP
86 lines
2.2 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\Inbox as Inbox_Collection;
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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( 'activitypub_inbox_undo', array( self::class, 'handle_undo' ), 10, 2 );
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\add_action( 'activitypub_validate_object', array( self::class, 'validate_object' ), 10, 3 );
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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|int[]|null $user_ids The user ID(s).
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*/
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public static function handle_undo( $activity, $user_ids ) {
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$success = false;
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$result = Inbox_Collection::undo( object_to_uri( $activity['object'] ) );
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if ( $result && ! \is_wp_error( $result ) ) {
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$success = true;
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}
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/**
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* Fires after an ActivityPub Undo activity has been handled.
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*
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* @param array $activity The ActivityPub activity data.
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* @param int[] $user_ids The local user IDs.
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* @param bool $success True on success, false on failure.
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* @param \WP_Comment|string $result The target, based on the activity that is being undone.
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*/
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\do_action( 'activitypub_handled_undo', $activity, (array) $user_ids, $success, $result );
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}
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/**
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* Validate the object.
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*
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* @param bool $valid The validation state.
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* @param string $param The object parameter.
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* @param \WP_REST_Request $request The request object.
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*
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* @return bool The validation state: true if valid, false if not.
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*/
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public static function validate_object( $valid, $param, $request ) {
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$activity = $request->get_json_params();
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if ( empty( $activity['type'] ) ) {
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return false;
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}
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if ( 'Undo' !== $activity['type'] ) {
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return $valid;
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}
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if ( ! isset( $activity['actor'], $activity['object'] ) ) {
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return false;
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}
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if ( ! \is_array( $activity['object'] ) && ! \is_string( $activity['object'] ) ) {
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return false;
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}
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if ( \is_array( $activity['object'] ) && ! isset( $activity['object']['id'] ) ) {
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return false;
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}
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return $valid;
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}
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}
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