<?php
/**
 * Copyright (C) 2007,2008  Arie Nugraha (dicarve@yahoo.com), Hendro Wicaksono (hendrowicaksono@yahoo.com)
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */

// be sure that this file not accessed directly
if (!defined('INDEX_AUTH')) {
    die("can not access this file directly");
} elseif (INDEX_AUTH != 1) { 
    die("can not access this file directly");
}

session_start();

if ($sysconf['allow_pdf_download']) {
    /* File Viewer */
    // get file ID
    $fileID = isset($_GET['fid'])?(integer)$_GET['fid']:0;
    // get biblioID
    $biblioID = isset($_GET['bid'])?(integer)$_GET['bid']:0;

    // query file to database
    $sql_q = 'SELECT att.*, f.* FROM biblio_attachment AS att
        LEFT JOIN files AS f ON att.file_id=f.file_id
        WHERE att.file_id='.$fileID.' AND att.biblio_id='.$biblioID.' AND att.access_type=\'public\'';
    $file_q = $dbs->query($sql_q);
    $file_d = $file_q->fetch_assoc();

    if ($file_q->num_rows > 0) {
        $file_loc = REPOBS.str_ireplace('/', DS, $file_d['file_dir']).DS.$file_d['file_name'];
        if (file_exists($file_loc)) {

            if ($file_d['access_limit']) {
                if (utility::isMemberLogin()) {
                    $allowed_mem_types = @unserialize($file_d['access_limit']);
                    if (!in_array($_SESSION['m_member_type_id'], $allowed_mem_types)) {
                        header("location:index.php");
                        continue;
                    }
                } else {
                    header("location:index.php");
                    continue;
                }
            }

            header("Content-Description: File Transfer");
            header('Content-Disposition: attachment; filename="'.basename($file_loc).'"');
            header('Content-Type: '.$file_d['mime_type']);
            readfile($file_loc);
            exit();

        } else {
          die('<div class="errorBox">File Not Found!</div>');
        }
    } else {
      die('<div class="errorBox">File Not Found!</div>');
    }
} else {
  header('location:index.php');
}
