DiscuzX/upload/source/function/function_upload.php

110 lines
3.8 KiB
PHP

<?php
/**
* [Discuz!] (C)2001-2099 Comsenz Inc.
* This is NOT a freeware, use is subject to license terms
*
* $Id: function_upload.php 29000 2012-03-22 03:52:01Z zhengqingpeng $
*/
if(!defined('IN_DISCUZ')) {
exit('Access Denied');
}
function getuploadconfig($uid=0, $fid=0, $limit=true) {
global $_G;
$notallow = $config = array();
$config['limit'] = 0;
$uid = !empty($uid) ? intval($uid) : $_G['uid'];
$authkey = $_G['config']['security']['authkey'];
$config['hash'] = md5(substr(md5($authkey), 8).$uid);
$imageexts = array('jpg','jpeg','gif','png','bmp');
$forumattachextensions = '';
$fid = intval($fid);
if($fid) {
$forum = $fid != $_G['fid'] ? C::t('forum_forum')->fetch_info_by_fid($fid) : $_G['forum'];
$levelinfo = C::t('forum_grouplevel')->fetch($forum['level']);
if($forum['status'] == 3 && $forum['level'] && $postpolicy = $levelinfo['postpolicy']) {
$postpolicy = dunserialize($postpolicy);
$forumattachextensions = $postpolicy['attachextensions'];
} else {
$forumattachextensions = $forum['attachextensions'];
}
}
$extendtype = '';
loadcache('attachtype');
$fid = isset($_G['cache']['attachtype'][$fid]) ? $fid : 0;
$filter = array();
if(is_array($_G['cache']['attachtype'][$fid])) {
foreach($_G['cache']['attachtype'][$fid] as $extension => $maxsize) {
if($maxsize == 0) {
$notallow[] = $extension;
} else {
$filter[] = "'$extension':$maxsize";
}
}
}
if(!empty($filter)) {
$config['filtertype'] = '{'.implode(',', $filter).'}';
}
$_G['group']['attachextensions'] = !$forumattachextensions ? $_G['group']['attachextensions'] : $forumattachextensions;
$config['imageexts'] = array('ext' => '', 'depict' => 'Image File');
$config['attachexts'] = array('ext' => '*.*', 'depict' => 'All Support Formats');
if($_G['group']['attachextensions'] !== '') {
$_G['group']['attachextensions'] = str_replace(' ', '', $_G['group']['attachextensions']);
$exts = explode(',', $_G['group']['attachextensions']);
$imagext = filterexts(array_intersect($imageexts, $exts), $notallow);
$config['imageexts']['ext'] = !empty($imagext) ? '*.'.implode(';*.', $imagext) : '';
$exts = filterexts($exts, $notallow);
$config['attachexts']['ext'] = !empty($exts) ? '*.'.implode(';*.', $exts) : '';
} else {
$imageexts = filterexts($imageexts, $notallow);
$config['imageexts']['ext'] = !empty($imageexts) ? '*.'.implode(';*.', $imageexts) : '';
}
$config['max'] = 0;
if(!empty($_G['group']['maxattachsize'])) {
$config['max'] = intval($_G['group']['maxattachsize']);
} else {
$config['max'] = @ini_get(upload_max_filesize);
$unit = strtolower(substr($config['max'], -1, 1));
$config['max'] = intval($config['max']);
if($unit == 'k') {
$config['max'] = $config['max']*1024;
} elseif($unit == 'm') {
$config['max'] = $config['max']*1024*1024;
} elseif($unit == 'g') {
$config['max'] = $config['max']*1024*1024*1024;
}
}
$config['max'] = $config['max'] / 1024;
if($limit) {
if($_G['group']['maxattachnum']) {
$todayattachs = getuserprofile('todayattachs');
$config['maxattachnum'] = $_G['group']['maxattachnum'] - $todayattachs;
$config['maxattachnum'] = $config['maxattachnum'] > 0 ? $config['maxattachnum'] : -1;
$config['limit'] = $config['maxattachnum'] > 0 ? $config['maxattachnum'] : 0;
}
if($_G['group']['maxsizeperday']) {
$todayattachsize = getuserprofile('todayattachsize');
$config['maxsizeperday'] = $_G['group']['maxsizeperday'] - $todayattachsize;
$config['maxsizeperday'] = $config['maxsizeperday'] > 0 ? $config['maxsizeperday'] : -1;
}
}
return $config;
}
function filterexts($needle, $haystack) {
foreach($needle as $key => $value) {
if(in_array($value, $haystack)) {
unset($needle[$key]);
}
}
return $needle;
}
?>