dedecms利用phpthumb自定义缩略图源码备份

function thu2mb($aid, $width = 320, $height = 200, $bg = true, $pnum = 0)
{
    global $dsql,$cfg_mainsite,$cfg_multi_site;
    $imgarr = array();
    //获取文档模型
    $aid = trim(ereg_replace('[^0-9]','',$aid));
    $cy = $dsql->GetOne("Select type.channeltype From `#@__arctype` type, `#@__archives` main where main.id='$aid' and  main.typeid=type.id");
    $ctype = $cy['channeltype'];
    if($ctype == 1){//文章模型
        $imgquery  = $dsql->GetOne("Select arc.body,arc.typeid From `#@__addonarticle` arc where arc.aid='$aid'");
        preg_match_all("/<img[\s\S]*?src=[\"']([\s\S]*?)[\"']/", $imgquery['body'], $imgarr);
        $pnum = $imgquery['typeid']==6 ? count($imgarr[1])-1 : 0;
    }else if($ctype == 2){
        $imgquery  = $dsql->GetOne("Select art.imgurls From `#@__addonimages` art where art.aid='$aid'");
        preg_match_all("/dede:img ddimg='(.*?)' text='/",$imgquery['imgurls'],$imgarr);
        
    }else{
        return"文章模型错误";
    }
    $imgurl = $imgarr[1][$pnum];
    if(!$imgurl) return;
    $thumb = eregi("http://",$imgurl)?str_replace($cfg_mainsite,'',$imgurl):$imgurl;
    if(preg_match('http://',$thumb)){
        echo '调用随机文档中包含未下载图片请编辑以下文档<br><a href="http://www.qmtx3.com/后台目录">点击修改</a>';
        exit;
    };
    $from = $thumb;
    $newthumb = preg_replace("/(.*\/)/", "$1'$width"."_".$height."_", $thumb);
    $newthumb = preg_replace("/\'/", "", $newthumb);
    $thumb = str_replace('uploads','uploads/lit',$newthumb);
    $thumb = str_replace('allimg/','',$thumb);
    if(!file_exists(DEDEROOT.$thumb))
    {
        $imgdir = preg_match('/.*\//',$thumb,$imgdirarr);
        $imgdir = DEDEROOT.$imgdirarr[0];
        tmkdirs($imgdir);
        if(!is_dir($imgdir))
        {
            echo $aid."<br>";
            echo '<a href="http://www.qmtx3.com/后台目录">修改该文章</a>';
            echo "ERROR: Create {$imgdir} dir Error! ";
            exit(0);
        }
        list($thumbname,$extname) = explode('.',$thumb);
        $newthumb = $thumbname.'_'.$width.'_'.$height.'.'.$extname;
        include_once DEDEINC.'/myThumb/phpthumb.class.php';
        $phpThumb = new phpthumb();
        $thumbnail_width = $width;
        if (is_uploaded_file(@$_FILES['userfile']['tmp_name'])) {
            $phpThumb->setSourceFilename($_FILES['userfile']['tmp_name']);
            $output_filename = './thumbnails/'.basename($_FILES['userfile']['name']).'_'.$thumbnail_width.'.'.$phpThumb->config_output_format;
        } else {
            $phpThumb->setSourceData(file_get_contents(DEDEROOT.$from));
            $output_filename = DEDEROOT.$thumb;
        }
        $phpThumb->setParameter('config_document_root', DEDEROOT);
        $phpThumb->setParameter('w', $width);
        $phpThumb->setParameter('h', $height);
        $phpThumb->setParameter('far', "'".$width.",".$height."'");
        $phpThumb->setParameter('zc', 'C');
    //画布背景
        $phpThumb->setParameter('bg', 'ffffff');
        if ($phpThumb->GenerateThumbnail()) {
            if ($phpThumb->RenderToFile($output_filename)) {
            } else {
                echo 'Failed:<pre>'.implode("\n\n", $phpThumb->debugmessages).'</pre>';
            }
            $phpThumb->purgeTempFiles();
        } else {
            echo 'Failed:<pre>'.$phpThumb->fatalerror."\n\n".implode("\n\n", $phpThumb->debugmessages).'</pre>';

        }
        $output_filename = str_replace(DEDEROOT, "", $output_filename);
        $query = "UPDATE #@__archives SET litpic='$output_filename',flag='p' WHERE id='$aid'; ";
        if(!$dsql->ExecuteNoneQuery($query))
        {
            ShowMsg('更新文档缩略图出错，请检查',-1);
            exit();
        }
        return $output_filename;
    }
    else
    {
        return $thumb;
    }
}

function typeurl_arc($typeid){
    $typeurl = "";
    global $dsql;
    $row = $dsql ->GetOne("select typedir from dede_arctype where id=$typeid");
    $typeurl = MfTypedir($row['typedir']);
    return $typeurl;
} 

function tmkdirs($dir)  
{  
    if(!is_dir($dir))  
    {  
        if(!tmkdirs(dirname($dir))){  
            return false;  
        }  
        
        if(!mkdir($dir,0777)){  
            return false;  
        }  
    }  
    return true;  
}