织梦DEDECMS下载地址如何全局调用函数

<?php   
/* -------------------------------   
==========  
Tigs:   
调用方法：{dede:field.id function="getsoftlinks(3,1,@me)"}   
参数说明：  
    1.$channelid 是内容模型的ID;  
    2.调用类型(1 = 本地 ；2 = 镜像列表)  
    3.@me 为当前值,也是软件的文档ID编号  
--------------------------------*/  
function getsoftlinks($channelid,$type,$aid){   
    global $dsql;   
    $goto = $dsql->GetOne("Select * From `dede_softconfig` ");   
    $channeltable = $dsql->GetOne("select * from `dede_channeltype` where id = $channelid");   
    $addtable = $channeltable['addtable'];   
    $row = $dsql->GetOne("select * from `".$addtable."` where aid = $aid");    
    if ($type == 1){ //设置条件为调用本地下载   
        if($row['softlinks'] != ''){ //判断下载地址是否为空;   
            $dtp = new DedeTagParse();   
            $dtp->LoadSource($row['softlinks']);   
            foreach($dtp->CTags as $ctag){   
                if($ctag->GetName()=='link'){ //读取 {dede:link}的标签   
                    $link = trim($ctag->GetInnerText()); //链接地址为底层模板;   
                    $serverName = trim($ctag->GetAtt('text')); //服务器名称   
                    $islocal = trim($ctag->GetAtt('islocal')); // 是否为本地的判断   
                    if ($islocal == 1){//本地下载链接   
                        if($goto['gotojump'] == 1){  //如果后台设置为链接到跳转页面,则对下载地址进行再次处理   
                            $uhash = substr(md5($link), 0, 24);   
                            $links = "/plus/download.php?open=2&id=$aid&uhash=$uhash";   
                        }      
                            return $links;   
                    }   
                }   
            }   
        }              
    }   
    else if($type == 0){   
        if($row['softlinks'] != ''){ //判断下载地址是否为空;   
            $dtp = new DedeTagParse();   
            $dtp->LoadSource($row['softlinks']);   
            if(is_array($dtp->CTags)){   
                foreach($dtp->CTags as $ctag){   
                    if($ctag->GetName()=='link'){ //读取 {dede:link}的标签   
                        $link = trim($ctag->GetInnerText()); //链接地址为底层模板;   
                        $serverName = trim($ctag->GetAtt('text')); //服务器名称   
                        $islocal = trim($ctag->GetAtt('islocal')); // 是否为本地的判断   
                        $rapidity = rand(0,70);   
                        if ($rapidity == 0){   
                            $line = 'stop';   
                        }   
                        elseif($rapidity <= 20){   
                            $line = 'busy';   
                        }   
                        elseif($rapidity <= 40){   
                            $line = 'nofree';   
                        }   
                        else{   
                            $line = 'free';   
                        }   
                        if ($islocal != 1){   
                            if($goto['gotojump'] == 1){//如果后台设置为链接到跳转页面,则对下载地址进行再次处理   
                                $uhash = substr(md5($link), 0, 24);   
                                $link = "/plus/download.php?open=2&id=$aid&uhash=$uhash";   
                            }   
                            $links =  "<tr><td class='line-name'><a href='".$link."' target='_blank'>".$serverName."</a></td><td>链接速度:</td><td class='line-speed'><p class='".$line." speed-bad'>".$rapidity."</p></td></tr>";   
                            $downlinks .= $links;   
                        }   
                    }   
                }   
            }   
            $dtp->Clear();   
            return $downlinks;   
        }   
    }   
    else{   
        return "调用参数错误";   
    }   
}   
?>