2016-12-15 08:20:54 -05:00
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<?php
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/**
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* [Discuz!] (C)2001-2099 Comsenz Inc.
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* This is NOT a freeware, use is subject to license terms
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*
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* $Id: forum_attachment.php 34304 2014-01-15 11:11:23Z nemohou $
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*/
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if(!defined('IN_DISCUZ')) {
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exit('Access Denied');
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}
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define('NOROBOT', TRUE);
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@list($_GET['aid'], $_GET['k'], $_GET['t'], $_GET['uid'], $_GET['tableid']) = daddslashes(explode('|', base64_decode($_GET['aid'])));
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$requestmode = !empty($_GET['request']) && empty($_GET['uid']);
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$aid = intval($_GET['aid']);
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$k = $_GET['k'];
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$t = $_GET['t'];
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$authk = !$requestmode ? substr(md5($aid.md5($_G['config']['security']['authkey']).$t.$_GET['uid']), 0, 8) : md5($aid.md5($_G['config']['security']['authkey']).$t);
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if($k != $authk) {
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if(!$requestmode) {
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showmessage('attachment_nonexistence');
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} else {
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exit;
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}
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}
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if(!empty($_GET['findpost']) && ($attach = C::t('forum_attachment')->fetch($aid))) {
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dheader('location: forum.php?mod=redirect&goto=findpost&pid='.$attach['pid'].'&ptid='.$attach['tid']);
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}
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if($_GET['uid'] != $_G['uid'] && $_GET['uid']) {
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$_G['uid'] = $_GET['uid'] = intval($_GET['uid']);
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$member = getuserbyuid($_GET['uid']);
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loadcache('usergroup_'.$member['groupid']);
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$_G['group'] = $_G['cache']['usergroup_'.$member['groupid']];
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$_G['group']['grouptitle'] = $_G['cache']['usergroup_'.$_G['groupid']]['grouptitle'];
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$_G['group']['color'] = $_G['cache']['usergroup_'.$_G['groupid']]['color'];
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}
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$tableid = 'aid:'.$aid;
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if($_G['setting']['attachexpire']) {
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if(TIMESTAMP - $t > $_G['setting']['attachexpire'] * 3600) {
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$aid = intval($aid);
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if($attach = C::t('forum_attachment_n')->fetch($tableid, $aid)) {
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if($attach['isimage']) {
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dheader('location: '.$_G['siteurl'].'static/image/common/none.gif');
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} else {
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if(!$requestmode) {
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showmessage('attachment_expired', '', array('aid' => aidencode($aid, 0, $attach['tid']), 'pid' => $attach['pid'], 'tid' => $attach['tid']));
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} else {
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exit;
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}
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}
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} else {
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if(!$requestmode) {
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showmessage('attachment_nonexistence');
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} else {
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exit;
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}
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}
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}
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}
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$readmod = getglobal('config/download/readmod');
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$readmod = $readmod > 0 && $readmod < 5 ? $readmod : 2;
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$refererhost = parse_url($_SERVER['HTTP_REFERER']);
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$serverhost = $_SERVER['HTTP_HOST'];
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if(($pos = strpos($serverhost, ':')) !== FALSE) {
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$serverhost = substr($serverhost, 0, $pos);
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}
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if(!$requestmode && $_G['setting']['attachrefcheck'] && $_SERVER['HTTP_REFERER'] && !($refererhost['host'] == $serverhost)) {
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showmessage('attachment_referer_invalid', NULL);
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}
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periodscheck('attachbanperiods');
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loadcache('threadtableids');
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$threadtableids = !empty($_G['cache']['threadtableids']) ? $_G['cache']['threadtableids'] : array();
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if(!in_array(0, $threadtableids)) {
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$threadtableids = array_merge(array(0), $threadtableids);
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}
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$archiveid = in_array($_GET['archiveid'], $threadtableids) ? intval($_GET['archiveid']) : 0;
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$attachexists = FALSE;
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if(!empty($aid) && is_numeric($aid)) {
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$attach = C::t('forum_attachment_n')->fetch($tableid, $aid);
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$thread = C::t('forum_thread')->fetch_by_tid_displayorder($attach['tid'], 0, '>=', null, $archiveid);
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if($_G['uid'] && $attach['uid'] != $_G['uid']) {
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if($attach) {
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$attachpost = C::t('forum_post')->fetch($thread['posttableid'], $attach['pid'], false);
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$attach['invisible'] = $attachpost['invisible'];
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unset($attachpost);
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}
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if($attach && $attach['invisible'] == 0) {
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$thread && $attachexists = TRUE;
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}
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} else {
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$attachexists = TRUE;
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}
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}
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if(!$attachexists) {
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if(!$requestmode) {
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showmessage('attachment_nonexistence');
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} else {
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exit;
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}
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}
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if(!$requestmode) {
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$forum = C::t('forum_forumfield')->fetch_info_for_attach($thread['fid'], $_G['uid']);
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$_GET['fid'] = $forum['fid'];
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if($attach['isimage']) {
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$allowgetattach = !empty($forum['allowgetimage']) || (($_G['group']['allowgetimage'] || $_G['uid'] == $attach['uid']) && !$forum['getattachperm']) || forumperm($forum['getattachperm']);
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} else {
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$allowgetattach = !empty($forum['allowgetattach']) || (($_G['group']['allowgetattach'] || $_G['uid'] == $attach['uid']) && !$forum['getattachperm']) || forumperm($forum['getattachperm']);
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}
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if($allowgetattach && ($attach['readperm'] && $attach['readperm'] > $_G['group']['readaccess']) && $_G['adminid'] <= 0 && !($_G['uid'] && $_G['uid'] == $attach['uid'])) {
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showmessage('attachment_forum_nopermission', NULL, array(), array('login' => 1));
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}
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$ismoderator = in_array($_G['adminid'], array(1, 2)) ? 1 : ($_G['adminid'] == 3 ? C::t('forum_moderator')->fetch_uid_by_tid($attach['tid'], $_G['uid'], $archiveid) : 0);
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$ispaid = FALSE;
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$exemptvalue = $ismoderator ? 128 : 16;
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if(!$thread['special'] && $thread['price'] > 0 && (!$_G['uid'] || ($_G['uid'] != $attach['uid'] && !($_G['group']['exempt'] & $exemptvalue)))) {
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if(!$_G['uid'] || $_G['uid'] && !($ispaid = C::t('common_credit_log')->count_by_uid_operation_relatedid($_G['uid'], 'BTC', $attach['tid']))) {
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showmessage('attachment_payto', 'forum.php?mod=viewthread&tid='.$attach['tid']);
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}
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}
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$exemptvalue = $ismoderator ? 64 : 8;
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if($attach['price'] && (!$_G['uid'] || ($_G['uid'] != $attach['uid'] && !($_G['group']['exempt'] & $exemptvalue)))) {
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$payrequired = $_G['uid'] ? !C::t('common_credit_log')->count_by_uid_operation_relatedid($_G['uid'], 'BAC', $attach['aid']) : 1;
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$payrequired && showmessage('attachement_payto_attach', 'forum.php?mod=misc&action=attachpay&aid='.$attach['aid'].'&tid='.$attach['tid']);
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}
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}
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$isimage = $attach['isimage'];
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$_G['setting']['ftp']['hideurl'] = $_G['setting']['ftp']['hideurl'] || ($isimage && !empty($_GET['noupdate']) && $_G['setting']['attachimgpost'] && strtolower(substr($_G['setting']['ftp']['attachurl'], 0, 3)) == 'ftp');
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if(empty($_GET['nothumb']) && $attach['isimage'] && $attach['thumb']) {
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$db = DB::object();
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$db->close();
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!$_G['config']['output']['gzip'] && ob_end_clean();
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dheader('Content-Disposition: inline; filename='.getimgthumbname($attach['filename']));
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dheader('Content-Type: image/pjpeg');
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if($attach['remote']) {
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$_G['setting']['ftp']['hideurl'] ? getremotefile(getimgthumbname($attach['attachment'])) : dheader('location:'.$_G['setting']['ftp']['attachurl'].'forum/'.getimgthumbname($attach['attachment']));
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} else {
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getlocalfile($_G['setting']['attachdir'].'/forum/'.getimgthumbname($attach['attachment']));
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}
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exit();
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}
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$filename = $_G['setting']['attachdir'].'/forum/'.$attach['attachment'];
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if(!$attach['remote'] && !is_readable($filename)) {
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$storageService = Cloud::loadClass('Service_Storage');
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$storageService->checkAttachment($attach);
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if(!$requestmode) {
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showmessage('attachment_nonexistence');
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} else {
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exit;
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}
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}
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if(!$requestmode) {
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if(!$ispaid && !$forum['allowgetattach']) {
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if(!$forum['getattachperm'] && !$allowgetattach) {
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showmessage('getattachperm_none_nopermission', NULL, array(), array('login' => 1));
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} elseif(($forum['getattachperm'] && !forumperm($forum['getattachperm'])) || ($forum['viewperm'] && !forumperm($forum['viewperm']))) {
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showmessagenoperm('getattachperm', $forum['fid']);
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}
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}
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$exemptvalue = $ismoderator ? 32 : 4;
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if(!$isimage && !($_G['group']['exempt'] & $exemptvalue)) {
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$creditlog = updatecreditbyaction('getattach', $_G['uid'], array(), '', 1, 0, $thread['fid']);
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if($creditlog['updatecredit']) {
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if($_G['uid']) {
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$k = $_GET['ck'];
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$t = $_GET['t'];
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if(empty($k) || empty($t) || $k != substr(md5($aid.$t.md5($_G['config']['security']['authkey'])), 0, 8) || TIMESTAMP - $t > 3600) {
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dheader('location: forum.php?mod=misc&action=attachcredit&aid='.$attach['aid'].'&formhash='.FORMHASH);
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exit();
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}
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} else {
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showmessage('attachment_forum_nopermission', NULL, array(), array('login' => 1));
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}
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}
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}
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}
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$range = 0;
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if($readmod == 4 && !empty($_SERVER['HTTP_RANGE'])) {
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list($range) = explode('-',(str_replace('bytes=', '', $_SERVER['HTTP_RANGE'])));
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}
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if(!$requestmode && !$range && empty($_GET['noupdate'])) {
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if($_G['setting']['delayviewcount']) {
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$_G['forum_logfile'] = './data/cache/forum_attachviews_'.intval(getglobal('config/server/id')).'.log';
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if(substr(TIMESTAMP, -1) == '0') {
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attachment_updateviews($_G['forum_logfile']);
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}
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if(@$fp = fopen(DISCUZ_ROOT.$_G['forum_logfile'], 'a')) {
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fwrite($fp, "$aid\n");
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fclose($fp);
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} elseif($_G['adminid'] == 1) {
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showmessage('view_log_invalid', '', array('logfile' => $_G['forum_logfile']));
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}
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} else {
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C::t('forum_attachment')->update_download($aid);
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}
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}
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$db = DB::object();
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$db->close();
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!$_G['config']['output']['gzip'] && ob_end_clean();
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if($attach['remote'] && !$_G['setting']['ftp']['hideurl'] && $isimage) {
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dheader('location:'.$_G['setting']['ftp']['attachurl'].'forum/'.$attach['attachment']);
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}
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$filesize = !$attach['remote'] ? filesize($filename) : $attach['filesize'];
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$attach['filename'] = '"'.(strtolower(CHARSET) == 'utf-8' && strexists($_SERVER['HTTP_USER_AGENT'], 'MSIE') ? urlencode($attach['filename']) : $attach['filename']).'"';
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dheader('Date: '.gmdate('D, d M Y H:i:s', $attach['dateline']).' GMT');
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dheader('Last-Modified: '.gmdate('D, d M Y H:i:s', $attach['dateline']).' GMT');
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dheader('Content-Encoding: none');
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if($isimage && !empty($_GET['noupdate']) || !empty($_GET['request'])) {
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dheader('Content-Disposition: inline; filename='.$attach['filename']);
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} else {
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dheader('Content-Disposition: attachment; filename='.$attach['filename']);
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}
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if($isimage) {
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dheader('Content-Type: image');
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} else {
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dheader('Content-Type: application/octet-stream');
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}
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dheader('Content-Length: '.$filesize);
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$xsendfile = getglobal('config/download/xsendfile');
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if(!empty($xsendfile)) {
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$type = intval($xsendfile['type']);
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2017-03-07 21:41:32 -05:00
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if($isimage){
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$type = 0;
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}
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2016-12-15 08:20:54 -05:00
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$cmd = '';
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switch ($type) {
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case 1: $cmd = 'X-Accel-Redirect'; $url = $xsendfile['dir'].$attach['attachment']; break;
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case 2: $cmd = $_SERVER['SERVER_SOFTWARE'] <'lighttpd/1.5' ? 'X-LIGHTTPD-send-file' : 'X-Sendfile'; $url = $filename; break;
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case 3: $cmd = 'X-Sendfile'; $url = $filename; break;
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}
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if($cmd) {
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dheader("$cmd: $url");
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exit();
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}
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}
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if($readmod == 4) {
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dheader('Accept-Ranges: bytes');
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if(!empty($_SERVER['HTTP_RANGE'])) {
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$rangesize = ($filesize - $range) > 0 ? ($filesize - $range) : 0;
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dheader('Content-Length: '.$rangesize);
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dheader('HTTP/1.1 206 Partial Content');
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dheader('Content-Range: bytes='.$range.'-'.($filesize-1).'/'.($filesize));
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}
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}
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$attach['remote'] ? getremotefile($attach['attachment']) : getlocalfile($filename, $readmod, $range);
|
|
|
|
|
|
|
|
|
|
function getremotefile($file) {
|
|
|
|
|
global $_G;
|
|
|
|
|
@set_time_limit(0);
|
|
|
|
|
if(!@readfile($_G['setting']['ftp']['attachurl'].'forum/'.$file)) {
|
|
|
|
|
$ftp = ftpcmd('object');
|
|
|
|
|
$tmpfile = @tempnam($_G['setting']['attachdir'], '');
|
|
|
|
|
if($ftp->ftp_get($tmpfile, 'forum/'.$file, FTP_BINARY)) {
|
|
|
|
|
@readfile($tmpfile);
|
|
|
|
|
@unlink($tmpfile);
|
|
|
|
|
} else {
|
|
|
|
|
@unlink($tmpfile);
|
|
|
|
|
return FALSE;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return TRUE;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
function getlocalfile($filename, $readmod = 2, $range = 0) {
|
|
|
|
|
if($readmod == 1 || $readmod == 3 || $readmod == 4) {
|
|
|
|
|
if($fp = @fopen($filename, 'rb')) {
|
|
|
|
|
@fseek($fp, $range);
|
|
|
|
|
if(function_exists('fpassthru') && ($readmod == 3 || $readmod == 4)) {
|
|
|
|
|
@fpassthru($fp);
|
|
|
|
|
} else {
|
|
|
|
|
echo @fread($fp, filesize($filename));
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
@fclose($fp);
|
|
|
|
|
} else {
|
|
|
|
|
@readfile($filename);
|
|
|
|
|
}
|
|
|
|
|
@flush(); @ob_flush();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
function attachment_updateviews($logfile) {
|
|
|
|
|
$viewlog = $viewarray = array();
|
|
|
|
|
$newlog = DISCUZ_ROOT.$logfile.random(6);
|
|
|
|
|
if(@rename(DISCUZ_ROOT.$logfile, $newlog)) {
|
|
|
|
|
$viewlog = file($newlog);
|
|
|
|
|
unlink($newlog);
|
|
|
|
|
if(is_array($viewlog) && !empty($viewlog)) {
|
|
|
|
|
$viewlog = array_count_values($viewlog);
|
|
|
|
|
foreach($viewlog as $id => $views) {
|
|
|
|
|
if($id > 0) {
|
|
|
|
|
$viewarray[$views][] = intval($id);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
foreach($viewarray as $views => $ids) {
|
|
|
|
|
C::t('forum_attachment')->update_download($ids, $views);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
?>
|
