class.ilVirusScannerPreProcessor.php

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<?php

declare(strict_types=1);

use ILIAS\Filesystem\Stream\FileStream;
use ILIAS\FileUpload\DTO\Metadata;
use ILIAS\FileUpload\DTO\ProcessingStatus;
use ILIAS\FileUpload\Processor\PreProcessor;

final class ilVirusScannerPreProcessor implements PreProcessor
{
    protected \ilVirusScanner $scanner;

    public function __construct(ilVirusScanner $scanner)
    {
        $this->scanner = $scanner;
    }

    public function process(FileStream $stream, Metadata $metadata): ProcessingStatus
    {
        $uri = $stream->getMetadata()["uri"];
        // chmod($uri, 0755); // we must find a way e.g. ClamAV can read the file
        if ($this->scanner->scanFile($uri) !== "") {
            return new ProcessingStatus(ProcessingStatus::DENIED, 'Virus detected.');
        }

        return new ProcessingStatus(ProcessingStatus::OK, 'No Virus detected.');
    }
}