<?php
/**
 * File for downloading the attachments
 *
 * Copyright 2001 Nicolas Chalanset <nicocha@free.fr>
 * Copyright 2001 Olivier Cahagne <cahagn_o@epita.fr>
 * Copyright 2008-2011 Tim Gerundt <tim@gerundt.de>
 *
 * This file is part of NOCC. NOCC is free software under the terms of the
 * GNU General Public License. You should have received a copy of the license
 * along with NOCC.  If not, see <http://www.gnu.org/licenses/>.
 *
 * @package    NOCC
 * @license    http://www.gnu.org/licenses/ GNU General Public License
 * @version    SVN: $Id: download.php 2970 2021-12-12 21:37:48Z oheil $
 */

if(!isset($HTTP_USER_AGENT))
    $HTTP_USER_AGENT = $_SERVER['HTTP_USER_AGENT'];

require_once './common.php';
require_once './classes/class_local.php';

try {
    $pop = new nocc_imap();

    $mime = $_REQUEST['mime'];
    $filename = $_REQUEST['filename'];
    $mail = $_REQUEST['mail'];
    $transfer = $_REQUEST['transfer'];
    $part = $_REQUEST['part'];
    $filename = base64_decode($filename);
    $filename = preg_replace('{[\\/:\*\?"<>\|;]}', '_', str_replace('&#32;', ' ', $filename));

//    $isIE = $isIE6 = 0;

//probably outdated
    // Set correct http headers.
    // Thanks to Squirrelmail folks :-)
//    if (strstr($HTTP_USER_AGENT, 'compatible; MSIE ') !== false &&
//      strstr($HTTP_USER_AGENT, 'Opera') === false) {
//        $isIE = 1;
//    }

//    if (strstr($HTTP_USER_AGENT, 'compatible; MSIE 6') !== false &&
//      strstr($HTTP_USER_AGENT, 'Opera') === false) {
//        $isIE6 = 1;
//    }

//    if ($isIE) {
//        $filename=rawurlencode($filename);
//        header("Pragma: public");
//        header("Cache-Control: no-store, max-age=0, no-cache, must-revalidate"); // HTTP/1.1
//        header("Cache-Control: post-check=0, pre-check=0", false);
//        header("Cache-Control: private");
//
//        //set the inline header for IE, we'll add the attachment header later if we need it
//        header("Content-Disposition: inline; filename=$filename");
//    }

	if( preg_match('/\.pdf$/',$filename) ) {
		header("Content-Type: application/pdf; name=\"$filename\"");
		header("Content-Disposition: inline; filename=\"$filename\"");
	}
	elseif( preg_match('/\.html$/',$filename) ) {
		header("Content-Type: text/html; name=\"$filename\"");
		header("Content-Disposition: inline; filename=\"$filename\"");
	}
	elseif( preg_match('/\.jpe?g$/',$filename) ) {
		header("Content-Type: image/jpeg; name=\"$filename\"");
		header("Content-Disposition: inline; filename=\"$filename\"");
	}
	elseif( preg_match('/\.png$/',$filename) ) {
		header("Content-Type: image/png; name=\"$filename\"");
		header("Content-Disposition: inline; filename=\"$filename\"");
	}
	elseif( preg_match('/\.gif$/',$filename) ) {
		header("Content-Type: image/gif; name=\"$filename\"");
		header("Content-Disposition: inline; filename=\"$filename\"");
	}
	elseif( preg_match('/\.bmp$/',$filename) ) {
		header("Content-Type: image/bmp; name=\"$filename\"");
		header("Content-Disposition: inline; filename=\"$filename\"");
	}
	elseif( preg_match('/\.tiff$/',$filename) ) {
		header("Content-Type: image/tiff; name=\"$filename\"");
		header("Content-Disposition: inline; filename=\"$filename\"");
	}
	else {
		header("Content-Type: application/octet-stream; name=\"$filename\"");
		header("Content-Disposition: attachment; filename=\"$filename\"");
	}

//    if ($isIE && !$isIE6) {
//        header("Content-Type: application/download; name=\"$filename\"");
//    } else {
//        header("Content-Type: application/octet-stream; name=\"$filename\"");
//    }

	$rfc822=false;
	if( $mime == "message-rfc822" ) {
		$rfc822=true;
	}

    $file = $pop->fetchbody($mail, $part, $part, false, $rfc822);

    $file = nocc_imap::decode($file, $transfer);

    $pop->close();

    header('Content-Length: ' . strlen($file));
    echo ($file);
}
catch (Exception $ex) {
    //TODO: Show error without NoccException!
    $ev = new NoccException($ex->getMessage());
    require './html/header.php';
    require './html/error.php';
    require './html/footer.php';
    return;
}