class.ilCountPDFPagesPreProcessors.php

Go to the documentation of this file.

<?php
 
use ILIAS\Filesystem\Stream\FileStream;
use ILIAS\FileUpload\DTO\Metadata;
use ILIAS\FileUpload\DTO\ProcessingStatus;
use ILIAS\FileUpload\Processor\PreProcessor;
 
class ilCountPDFPagesPreProcessors implements PreProcessor
{
    const PAGE_COUNT = 'page_count';
 
 
    public function process(FileStream $stream, Metadata $metadata)
    {
        if ($metadata->getMimeType() == ilMimeTypeUtil::APPLICATION__PDF
            && PATH_TO_GHOSTSCRIPT != ""
        ) {
            $PATH_TO_PDF = $stream->getMetadata('uri');
            $arg = "-q -dNODISPLAY -c \"($PATH_TO_PDF) (r) file runpdfbegin pdfpagecount = quit\";";
            $return = ilUtil::execQuoted(PATH_TO_GHOSTSCRIPT, $arg);
 
            $metadata->additionalMetaData()->put(self::PAGE_COUNT, (string) $return[0]);
        }
 
        return new ProcessingStatus(ProcessingStatus::OK, 'ilCountPDFPagesPreProcessors');
    }
}