UrlManager.php

См. документацию.

<?php
 
namespace Bitrix\UI\FileUploader;
 
use Bitrix\Main\Web\Json;
use Bitrix\Main\Web\Uri;
 
class UrlManager
{
    public static function getDownloadUrl(UploaderController $controller, FileInfo $fileInfo): Uri
    {
        $uri = self::getActionUrl($controller, 'download');
        $uri->addParams(['fileId' => $fileInfo->getId()]);
 
        return $uri;
    }
 
    public static function getPreviewUrl(UploaderController $controller, FileInfo $fileInfo): Uri
    {
        $uri = self::getActionUrl($controller, 'preview');
        $uri->addParams(['fileId' => $fileInfo->getId()]);
 
        return $uri;
    }
 
    private static function getActionUrl(UploaderController $controller, string $actionName): Uri
    {
        return \Bitrix\Main\Engine\UrlManager::getInstance()->create(
            "ui.fileuploader.{$actionName}",
            [
                'controller' => $controller->getName(),
                'controllerOptions' => Json::encode($controller->getOptions()),
            ]
        );
    }
}