class.ilPdfGenerator.php

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<?php
/* Copyright (c) 1998-2018 ILIAS open source, Extended GPL, see docs/LICENSE */

class ilPdfGenerator
{
    private $certificateRepository;

    private $logger;

    private $rpcHelper;

    private $pdfFilenameFactory;

    public function __construct(
        ilUserCertificateRepository $userCertificateRepository,
        ilLogger $logger,
        ilCertificateRpcClientFactoryHelper $rpcHelper = null,
        ilCertificatePdfFileNameFactory $pdfFileNameFactory = null,
        ilLanguage $lng = null
    ) {
        global $DIC;

        $this->certificateRepository = $userCertificateRepository;
        $this->logger = $logger;

        if (null === $rpcHelper) {
            $rpcHelper = new ilCertificateRpcClientFactoryHelper();
        }
        $this->rpcHelper = $rpcHelper;

        if (null === $lng) {
            $lng = $DIC->language();
        }

        if (null === $pdfFileNameFactory) {
            $pdfFileNameFactory = new ilCertificatePdfFileNameFactory($lng);
        }
        $this->pdfFilenameFactory = $pdfFileNameFactory;
    }

    public function generate(int $userCertificateId)
    {
        $certificate = $this->certificateRepository->fetchCertificate($userCertificateId);

        return $this->createPDFScalar($certificate);
    }

    public function generateCurrentActiveCertificate(int $userId, int $objId) : string
    {
        $certificate = $this->certificateRepository->fetchActiveCertificate($userId, $objId);

        return $this->createPDFScalar($certificate);
    }

    public function generateFileName(int $userId, int $objId) : string
    {
        $certificate = $this->certificateRepository->fetchActiveCertificateForPresentation($userId, $objId);

        $user = ilObjectFactory::getInstanceByObjId($userId);
        if (!$user instanceof ilObjUser) {
            throw new ilException(sprintf('The user_id "%s" does NOT reference a user', $userId));
        }

        $pdfFileName = $this->pdfFilenameFactory->create($certificate);

        return $pdfFileName;
    }

    private function createPDFScalar(ilUserCertificate $certificate) : string
    {
        $certificateContent = $certificate->getCertificateContent();

        $certificateContent = str_replace(
            '[BACKGROUND_IMAGE]',
            '[CLIENT_WEB_DIR]' . $certificate->getBackgroundImagePath(),
            $certificateContent
        );
        $certificateContent = str_replace(
            '[CLIENT_WEB_DIR]',
            'file://' . CLIENT_WEB_DIR,
            $certificateContent
        );

        $pdf_base64 = $this->rpcHelper->ilFO2PDF('RPCTransformationHandler', $certificateContent);

        return $pdf_base64->scalar;
    }
}