request.php

См. документацию.

<?php
 
namespace Bitrix\Main;

abstract class Request extends Type\ParameterDictionary
{
    protected $server;
    protected $requestedPage = null;
    protected $requestedPageDirectory = null;
 
    public function __construct(Server $server, array $request)
    {
        parent::__construct($request);
 
        $this->server = $server;
    }
 
    public function addFilter(Type\IRequestFilter $filter)
    {
        $filteredValues = $filter->filter($this->values);
 
        if ($filteredValues != null)
        {
            $this->setValuesNoDemand($filteredValues);
        }
    }

    public function getServer()
    {
        return $this->server;
    }
 
    public function getPhpSelf()
    {
        return $this->server->getPhpSelf();
    }
 
    public function getScriptName()
    {
        return $this->server->getScriptName();
    }
 
    public function getRequestedPage()
    {
        if ($this->requestedPage === null)
        {
            $page = $this->getScriptName();
            if (!empty($page))
            {
                $page = IO\Path::normalize($page);
 
                if (!str_starts_with($page, "/") && !preg_match("#^[a-z]:[/\\\\]#i", $page))
                {
                    $page = "/" . $page;
                }
            }
            $this->requestedPage = $page;
        }
 
        return $this->requestedPage;
    }

    public function getRequestedPageDirectory()
    {
        if ($this->requestedPageDirectory === null)
        {
            $requestedPage = $this->getRequestedPage();
            $this->requestedPageDirectory = IO\Path::getDirectory($requestedPage) . '/';
        }
        return $this->requestedPageDirectory;
    }
 
    public function isAdminSection()
    {
        $requestedDir = $this->getRequestedPageDirectory();
        return (str_starts_with($requestedDir, "/bitrix/admin/")
            || str_starts_with($requestedDir, "/bitrix/updates/")
            || (defined("ADMIN_SECTION") && ADMIN_SECTION === true)
            || (defined("BX_PUBLIC_TOOLS") && BX_PUBLIC_TOOLS === true)
        );
    }

    public function isAjaxRequest()
    {
        return
            $this->server->get("HTTP_BX_AJAX") !== null ||
            $this->server->get("HTTP_X_REQUESTED_WITH") === "XMLHttpRequest";
    }
}