class.ilVirusScannerAntiVir.php

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<?php
/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */

require_once "Services/VirusScanner/classes/class.ilVirusScanner.php";

class ilVirusScannerAntiVir extends ilVirusScanner
{
    public function __construct($a_scancommand, $a_cleancommand)
    {
        parent::__construct($a_scancommand, $a_cleancommand);
        $this->type = "antivir";
        $this->scanZipFiles = true;
    }

    public function scanFile($a_filepath, $a_origname = "")
    {
        // This function should:
        // - call the external scanner for a_filepath
        // - set scanFilePath to a_filepath
        // - set scanFileOrigName to a_origname
        // - set scanFileIsInfected according the scan result
        // - set scanResult to the scanner output message
        // - call logScanResult() if file is infected
        // - return the scanResult, if file is infected
        // - return an empty string, if file is not infected

        $this->scanFilePath = $a_filepath;
        $this->scanFileOrigName = $a_origname;

        // Call of antivir command
        $a_filepath = realpath($a_filepath);
        $cmd = ilUtil::escapeShellCmd($this->scanCommand);
        $args = ilUtil::escapeShellArg(" " . $a_filepath . " ");
        $out = ilUtil::execQuoted($cmd, $args);
        $this->scanResult = implode("\n", $out);

        // sophie could be called
        if (preg_match('/ALERT:/', $this->scanResult)) {
            $this->scanFileIsInfected = true;
            $this->logScanResult();
            return $this->scanResult;
        } else {
            $this->scanFileIsInfected = false;
            return "";
        }

        // antivir has failed (todo)
        $this->log->write("ERROR (Virus Scanner failed): "
            . $this->scanResult
            . "; COMMAMD=" . $cmd);
    }
}