forum_image.php
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<?php
/**
* [Discuz!] (C)2001-2099 Comsenz Inc.
* This is NOT a freeware, use is subject to license terms
*
* $Id: forum_image.php 32531 2013-02-06 10:15:19Z zhangguosheng $
*/
if(!defined('IN_DISCUZ') || empty($_GET['aid']) || empty($_GET['size']) || empty($_GET['key'])) {
header('location: '.$_G['siteurl'].'static/image/common/none.gif');
exit;
}
$nocache = !empty($_GET['nocache']) ? 1 : 0;
$daid = intval($_GET['aid']);
$type = !empty($_GET['type']) ? $_GET['type'] : 'fixwr';
list($w, $h) = explode('x', $_GET['size']);
$dw = intval($w);
$dh = intval($h);
$thumbfile = 'image/'.helper_attach::makethumbpath($daid, $dw, $dh);$attachurl = helper_attach::attachpreurl();
if(!$nocache) {
if(file_exists($_G['setting']['attachdir'].$thumbfile)) {
dheader('location: '.$attachurl.$thumbfile);
}
}
define('NOROBOT', TRUE);
$id = !empty($_GET['atid']) ? $_GET['atid'] : $daid;
if(dsign($id.'|'.$dw.'|'.$dh) != $_GET['key']) {
dheader('location: '.$_G['siteurl'].'static/image/common/none.gif');
}
if($attach = C::t('forum_attachment_n')->fetch('aid:'.$daid, $daid, array(1, -1))) {
if(!$dw && !$dh && $attach['tid'] != $id) {
dheader('location: '.$_G['siteurl'].'static/image/common/none.gif');
}
dheader('Expires: '.gmdate('D, d M Y H:i:s', TIMESTAMP + 3600).' GMT');
if($attach['remote']) {
$filename = $_G['setting']['ftp']['attachurl'].'forum/'.$attach['attachment'];
} else {
$filename = $_G['setting']['attachdir'].'forum/'.$attach['attachment'];
}
require_once libfile('class/image');
$img = new image;
if($img->Thumb($filename, $thumbfile, $w, $h, $type)) {
if($nocache) {
dheader('Content-Type: image');
@readfile($_G['setting']['attachdir'].$thumbfile);
@unlink($_G['setting']['attachdir'].$thumbfile);
} else {
dheader('location: '.$attachurl.$thumbfile);
}
} else {
dheader('Content-Type: image');
@readfile($filename);
}
}
?>