class.ilLTITool.php

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<?php

declare(strict_types=1);

use ceLTIc\LTI\Context;
use ceLTIc\LTI\ResourceLink;
use ceLTIc\LTI\Tool;
use ceLTIc\LTI\User;
use ILIAS\HTTP\Wrapper\ArrayBasedRequestWrapper;

class ilLTITool extends Tool
{
    protected ?\ilLogger $logger = null;

    public function __construct(ilLTIDataConnector $dataConnector)
    {
        $this->logger = ilLoggerFactory::getLogger('ltis');
        //        $this->initialize();
        if (empty($dataConnector)) {
            $dataConnector = ilLTIDataConnector::getDataConnector();
        }
        $this->dataConnector = $dataConnector;
        //parent::__construct($dataConnector);
        $this->setParameterConstraint('resource_link_id', true, 50, array('basic-lti-launch-request'));
        $this->setParameterConstraint('user_id', true, 64, array('basic-lti-launch-request'));
        $this->setParameterConstraint('roles', true, null, array('basic-lti-launch-request'));
        $this->setParameterConstraint('lis_person_contact_email_primary', true, 80, array('basic-lti-launch-request'));
    }

    protected function onLaunch(): void
    {
        // save/update current user
        if ($this->userResult instanceof User) {
            $this->logger->debug("onLaunch - user");
            $this->userResult->save();
        }

        if ($this->context instanceof Context) {
            $this->logger->debug("onLaunch - context");
            $this->context->save();
        }

        if ($this->resourceLink instanceof ResourceLink) {
            $this->logger->debug("onLaunch - resource");
            $this->resourceLink->save();
        }
    }

    public function parsePostBody(ArrayBasedRequestWrapper $postData): array
    {
        global $DIC;
        $res = [];
        foreach ($postData->keys() as $key) {
            $res[$key] = $postData->retrieve($key, $DIC->refinery()->kindlyTo()->string());
        }
        return $res;
    }

    public function handleRequest(bool $strictMode = null, bool $disableCookieCheck = false, bool $generateWarnings = false): void
    {
        global $DIC;

        $_POST = $this->parsePostBody($DIC->http()->wrapper()->post());
        $_GET = $DIC->http()->request()->getQueryParams();

        if (isset($_POST['lti_version']) && $_POST['lti_version'] === 'LTI-1p0') {
            $_SERVER['REQUEST_URI'] = rtrim(preg_replace('/([?&])client_id=[^&]+(&|$)/', '$1', $_SERVER['REQUEST_URI']), '?&');
        }

        self::$authenticateUsingGet = true;

        parent::handleRequest($strictMode, $disableCookieCheck, $generateWarnings);
    }
}