httpmethod.php

См. документацию.

<?php
 
 
namespace Bitrix\Main\Engine\ActionFilter;
 
 
use Bitrix\Main\Engine\Controller;
use Bitrix\Main\Error;
use Bitrix\Main\Event;
use Bitrix\Main\EventResult;
 
final class HttpMethod extends Base
{
    public const METHOD_GET = 'GET';
    public const METHOD_POST = 'POST';
    public const METHOD_PUT = 'PUT';
    public const METHOD_PATCH = 'PATCH';
    public const METHOD_DELETE = 'DELETE';
    public const METHOD_CONNECT = 'CONNECT';
    public const METHOD_OPTIONS = 'OPTIONS';
    public const METHOD_TRACE = 'TRACE';
 
    const ERROR_INVALID_HTTP_METHOD = 'invalid_http_method';
    private $allowedMethods;

    public function __construct(array $allowedMethods = array(self::METHOD_GET))
    {
        $this->allowedMethods = $allowedMethods;
        parent::__construct();
    }

    public function listAllowedScopes()
    {
        return array(
            Controller::SCOPE_AJAX,
            Controller::SCOPE_REST,
        );
    }

    public function containsPostMethod()
    {
        return in_array(self::METHOD_POST, $this->allowedMethods, true);
    }
 
    public function onBeforeAction(Event $event)
    {
        $requestMethod = $this->action->getController()->getRequest()->getRequestMethod();
 
        if (!in_array($requestMethod, $this->allowedMethods, true))
        {
            $this->addError(new Error(
                'Wrong method for current action',
                self::ERROR_INVALID_HTTP_METHOD
            ));
 
            return new EventResult(EventResult::ERROR, null, null, $this);
        }
 
        return null;
    }
}