ErrorPageResponder.php

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<?php
 
declare(strict_types=1);
 
namespace ILIAS\Init\ErrorHandling\Http;
 
use ilUtil;
use ilLanguage;
use ILIAS\Data\Link;
use ilGlobalTemplate;
use ILIAS\DI\UIServices;
use ILIAS\HTTP\Response\ResponseHeader;
use ILIAS\HTTP\Services as HTTPServices;
use ILIAS\GlobalScreen\Services as GlobalScreenServices;
 
class ErrorPageResponder
{
    public function __construct(
        private readonly GlobalScreenServices $global_screen,
        private readonly ilLanguage $language,
        private readonly UIServices $ui,
        private readonly HTTPServices $http
    ) {
    }
 
    public function respond(
        string $error_message,
        int $status_code,
        ?Link $back_target = null
    ): void {
        $this->global_screen->tool()->context()->claim()->external();
        $this->language->loadLanguageModule('error');
 
        $message_box = $this->ui->factory()->messageBox()->failure($error_message);
 
        if ($back_target !== null) {
            $ui_button = $this->ui->factory()->button()->standard(
                $back_target->getLabel(),
                ilUtil::secureUrl((string) $back_target->getURL())
            );
            $message_box = $message_box->withButtons([$ui_button]);
        }
 
        $local_tpl = new ilGlobalTemplate('tpl.error.html', true, true);
        $local_tpl->setCurrentBlock('msg_box');
        $local_tpl->setVariable(
            'MESSAGE_BOX',
            $this->ui->renderer()->render($message_box)
        );
        $local_tpl->parseCurrentBlock();
 
        $this->http->saveResponse(
            $this->http
                ->response()
                ->withStatus($status_code)
                ->withHeader(ResponseHeader::CONTENT_TYPE, 'text/html')
        );
 
        $this->ui->mainTemplate()->setContent($local_tpl->get());
        $this->ui->mainTemplate()->printToStdout();
 
        $this->http->close();
    }
}