125 lines
4.2 KiB
PHP
125 lines
4.2 KiB
PHP
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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: portal_attachment.php 25246 2011-11-02 03:34:53Z zhangguosheng $
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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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$operation = $_GET['op'] ? $_GET['op'] : '';
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$id = empty($_GET['id']) ? 0 : intval($_GET['id']);
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$aid = empty($_GET['aid']) ? '' : intval($_GET['aid']);
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$attach = C::t('portal_attachment')->fetch($id);
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if(empty($attach)) {
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showmessage('portal_attachment_noexist');
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}
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if($operation == 'delete') {
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if(!$_G['group']['allowmanagearticle'] && $_G['uid'] != $attach['uid']) {
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showmessage('portal_attachment_nopermission_delete');
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}
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if($aid) {
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C::t('portal_article_title')->update($aid, array('pic' => ''));
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}
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C::t('portal_attachment')->delete($id);
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pic_delete($attach['attachment'], 'portal', $attach['thumb'], $attach['remote']);
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showmessage('portal_image_noexist');
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} elseif($operation == 'getattach') {
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require_once libfile('function/attachment');
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if($attach['isimage']) {
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require_once libfile('function/home');
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$smallimg = pic_get($attach['attachment'], 'portal', $attach['thumb'], $attach['remote']);
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$bigimg = pic_get($attach['attachment'], 'portal', 0, $attach['remote']);
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$coverstr = addslashes(serialize(array('pic'=>'portal/'.$attach['attachment'], 'thumb'=>$attach['thumb'], 'remote'=>$attach['remote'])));
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}
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$attach['filetype'] = attachtype($attach['filetype']."\t".$attach['filetype']);
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$attach['filesize'] = sizecount($attach['filesize']);
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include template('portal/portal_attachment');
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exit;
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} else {
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$filename = $_G['setting']['attachdir'].'/portal/'.$attach['attachment'];
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if(!$attach['remote'] && !is_readable($filename)) {
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showmessage('attachment_nonexistence');
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}
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$readmod = 2;//read local file's function: 1=fread 2=readfile 3=fpassthru 4=fpassthru+multiple
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$range = 0;
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if($readmod == 4 && !empty($_SERVER['HTTP_RANGE'])) {
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list($range) = explode('-',(str_replace('bytes=', '', $_SERVER['HTTP_RANGE'])));
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}
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if($attach['remote'] && !$_G['setting']['ftp']['hideurl'] && $attach['isimage']) {
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dheader('location:'.$_G['setting']['ftp']['attachurl'].'portal/'.$attach['attachment']);
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}
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$filesize = $attach['filesize'];
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$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', $attach['dateline']).' GMT');
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dheader('Content-Encoding: none');
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dheader('Content-Disposition: attachment; filename='.$attach['filename']);
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dheader('Content-Type: '.$attach['filetype']);
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dheader('Content-Length: '.$filesize);
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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, $range);
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}
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function getremotefile($file) {
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global $_G;
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@set_time_limit(0);
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if(!@readfile($_G['setting']['ftp']['attachurl'].'portal/'.$file)) {
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$ftp = new discuz_ftp();
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if(!($_G['setting']['ftp']['connid'] = $ftp->connect())) {
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return FALSE;
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}
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$tmpfile = @tempnam($_G['setting']['attachdir'], '');
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if($ftp->ftp_get($_G['setting']['ftp']['connid'], $tmpfile, $file, FTP_BINARY)) {
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@readfile($tmpfile);
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@unlink($tmpfile);
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} else {
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@unlink($tmpfile);
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return FALSE;
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}
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}
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return TRUE;
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}
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function getlocalfile($filename, $readmod = 2, $range = 0) {
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if($readmod == 1 || $readmod == 3 || $readmod == 4) {
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if($fp = @fopen($filename, 'rb')) {
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@fseek($fp, $range);
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if(function_exists('fpassthru') && ($readmod == 3 || $readmod == 4)) {
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@fpassthru($fp);
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} else {
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echo @fread($fp, filesize($filename));
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}
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}
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@fclose($fp);
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} else {
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@readfile($filename);
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}
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@flush();
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@ob_flush();
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}
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?>
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