dedecms删除文章同时一起删除图片的修改方法

<?php 
function GetPicsTruePath($body,$litpic) //解析body数据，获得所有图片的绝对地址 
{ 
$delfiles = array();//存储图片地址数据 
if(!empty($litpic)) 
{ 
$litpicpath = GetTruePath(); 
$litpicpath .= $litpic; 
$delfiles[] = $litpicpath;//缩略图地址 
} 
preg_match_all("/src=[\"|'|\S|\s]([^ |\/|>]*){0,}(([^>]*)\.(gif|jpg|png))/isU",$body,$tmpdata); 
$picspath = array_unique($tmpdata[2]);//body中所有图片的地址 
foreach($picspath as $tmppath) 
{ 
$path = GetTruePath();//获得绝对路径 
$picpath = preg_replace("/[a-zA-z]+:\/\/[^ |\/|\s]*/",'',$tmppath);//去掉网址部分 
$path .=$picpath; 
$delfiles[] = $path;//保存处理后的数据 
} 
return $delfiles; 
} 
function WriteToDelFiles($msg)//删除文章的时候会通过此函数记录日志 
{ 
if(empty($msg)) $savemsg="未获得消息"; 
else $savemsg = $msg; 
$errorFile = dirname(__FILE__).'/../data/del_body_file.txt';//删除记录文件 
$fp = @fopen($errorFile, 'a'); 
@fwrite($fp,"\r\n{$savemsg}"); 
@fclose($fp); 
} 
//获得文章Body数据 
function GetArcBody($aid) 
{ 
global $dsql; 
$query = "SELECT dede_addonarticle.body FROM dede_addonarticle WHERE dede_addonarticle.aid = '$aid'"; 
$row = $dsql->GetOne($query); 
if(is_array($row)) return $row; 
else return false; 
} 
function litimgurls($imgid=0){ 
global $lit_imglist; 
$dsql = new DedeSql(false); 
//获取附加表 
$row = $dsql->GetOne("SELECT c.addtable FROM dede_archives AS a LEFT JOIN dede_channeltype AS c ON a.channel=c.id where a.id='$imgid'"); 
$addtable = trim($row['addtable']); 
//获取图片附加表imgurls字段内容进行处理 
$row = $dsql->GetOne("Select imgurls From `$addtable` where aid='$imgid'"); 
//调用inc_channel_unit.php中ChannelUnit类 
$ChannelUnit = new ChannelUnit(2,$imgid); 
//调用ChannelUnit类中GetlitImgLinks方法处理缩略图 
$lit_imglist = $ChannelUnit->GetlitImgLinks($row['imgurls']); 
//返回结果 
return $lit_imglist; 
} 
?> 

<?php 
function DelArc($aid,$type='ON',$onlyfile=false) 
{ 
global $dsql,$cfg_cookie_encode,$cfg_multi_site,$cfg_medias_dir; 
global $cuserLogin,$cfg_upload_switch,$cfg_delete,$cfg_basedir; 
global $admin_catalogs, $cfg_admin_channel; 
if($cfg_delete == 'N') $type = 'OK'; 
if(empty($aid)) return ; 
$aid = ereg_replace("[^0-9]", '', $aid); 
$arctitle = $arcurl = ''; 
//查询表信息 
$query = "Select ch.maintable,ch.addtable,ch.nid,ch.issystem From `dede_arctiny` arc 
left join `dede_arctype` tp on tp.id=arc.typeid 
left join `dede_channeltype` ch on ch.id=arc.channel where arc.id='$aid' "; 
$row = $dsql->GetOne($query); 
$nid = $row['nid']; 
$maintable = (trim($row['maintable'])=='' ? 'dede_archives' : trim($row['maintable'])); 
$addtable = trim($row['addtable']); 
$issystem = $row['issystem']; 
//查询档案信息 
if($issystem==-1) 
{ 
$arcQuery = "Select arc.*,tp.* from `$addtable` arc left join `dede_arctype` tp on arc.typeid=tp.id where arc.aid='$aid' "; 
} 
else 
{ 
$arcQuery = "Select arc.*,tp.*,arc.id as aid from `$maintable` arc left join `dede_arctype` tp on arc.typeid=tp.id where arc.id='$aid' "; 
} 
$arcRow = $dsql->GetOne($arcQuery); 
$arcBodyRow = GetArcBody($aid); 
//检测权限 
if(!TestPurview('a_Del,sys_ArcBatch')) 
{ 
if(TestPurview('a_AccDel')) 
{ 
if( !in_array($arcRow['typeid'], $admin_catalogs) && (count($admin_catalogs) != 0 || $cfg_admin_channel != 'all') ) 
{ 
return false; 
} 
} 
else if(TestPurview('a_MyDel')) 
{ 
if($arcRow['mid'] != $cuserLogin->getUserID()) 
{ 
return false; 
} 
} 
else 
{ 
return false; 
} 
} 
//$issystem==-1 是单表模型，不使用回收站 
if($issystem == -1) $type = 'OK'; 
if(!is_array($arcRow)) return false; 
/** 删除到回收站 **/ 
if($cfg_delete == 'Y' && $type == 'ON') 
{ 
$dsql->ExecuteNoneQuery("Update `$maintable` set arcrank='-2' where id='$aid' "); 
$dsql->ExecuteNoneQuery("Update `dede_arctiny` set `arcrank` = '-2' where id = '$aid'; "); 
} 
else 
{ 
//删除数据库记录 
if(!$onlyfile) 
{ 
//删除相关附件 
if($cfg_upload_switch == 'Y') 
{ 
$dsql->Execute("me", "SELECT * FROM `dede_uploads` WHERE arcid = '$aid'"); 
while($row = $dsql->GetArray('me')) 
{ 
$addfile = $row['url']; 
$aid = $row['aid']; 
$dsql->ExecuteNoneQuery("Delete From `dede_uploads` where aid = '$aid' "); 
$upfile = $cfg_basedir.$addfile; 
if(@file_exists($upfile)) @unlink($upfile); 
} 
} 
$dsql->ExecuteNoneQuery("Delete From `dede_arctiny` where id='$aid'"); 
if($addtable != '') 
{ 
$dsql->ExecuteNoneQuery("Delete From `$addtable` where aid='$aid' "); 
} 
if($issystem != -1) 
{ 
$dsql->ExecuteNoneQuery("Delete From `dede_archives` where id='$aid' "); 
} 
$dsql->ExecuteNoneQuery("Delete From `dede_feedback` where aid='$aid' "); 
$dsql->ExecuteNoneQuery("Delete From `dede_member_stow` where aid='$aid' "); 
$dsql->ExecuteNoneQuery("Delete From `dede_taglist` where aid='$aid' "); 
$dsql->ExecuteNoneQuery("Delete From `dede_erradd` where aid='$aid' "); 
} 
//删除文本数据 
$filenameh = DEDEDATA."/textdata/".(ceil($aid/5000))."/{$aid}-".substr(md5($cfg_cookie_encode),0,16).".txt"; 
if(@is_file($filenameh)) @unlink($filenameh); 
} 
if(empty($arcRow['money'])) $arcRow['money'] = 0; 
if(empty($arcRow['ismake'])) $arcRow['ismake'] = 1; 
if(empty($arcRow['arcrank'])) $arcRow['arcrank'] = 0; 
if(empty($arcRow['filename'])) $arcRow['filename'] = ''; 
//删除HTML 
if($arcRow['ismake']==-1 || $arcRow['arcrank']!=0 || $arcRow['typeid']==0 || $arcRow['money']>0) 
{ 
return true; 
} 
//强制转换非多站点模式，以便统一方式获得实际HTML文件 
$GLOBALS['cfg_multi_site'] = 'N'; 
$arcurl = GetFileUrl($arcRow['aid'],$arcRow['typeid'],$arcRow['senddate'],$arcRow['title'],$arcRow['ismake'], 
$arcRow['arcrank'],$arcRow['namerule'],$arcRow['typedir'],$arcRow['money'],$arcRow['filename']); 
if(!ereg("\?", $arcurl)) 
{ 
$htmlfile = GetTruePath().str_replace($GLOBALS['cfg_basehost'],'',$arcurl); 
if(file_exists($htmlfile) && !is_dir($htmlfile)) 
{ 
@unlink($htmlfile); 
$arcurls = explode(".", $htmlfile); 
$sname = $arcurls[count($arcurls)-1]; 
$fname = ereg_replace("(\.$sname)$", "", $htmlfile); 
for($i=2; $i<=100; $i++) 
{ 
$htmlfile = $fname."_{$i}.".$sname; 
if( @file_exists($htmlfile) ) @unlink($htmlfile); 
else break; 
} 
} 
} 
//解析Body中的资源，并删除 
$willDelFiles = GetPicsTruePath($arcBodyRow['body'],$arcRow['litpic']); 
$nowtime = time(); 
$executetime = MyDate('Y-m-d H:i:s',$nowtime);//获得执行时间 
$msg = "\r\n文章标题：$arcRow[title]"; 
WriteToDelFiles($msg); 
if(!empty($willDelFiles)) 
{ 
foreach($willDelFiles as $file) 
{ 
if(file_exists($file) && !is_dir($file)) 
{ 
if(unlink($file)) $msg = "\r\n位置：$file\r\n结果：删除成功！\r\n时间：$executetime"; 
else $msg = "\r\n位置：$file\r\n结果：删除失败！\r\n时间：$executetime"; 
} 
else $msg = "\r\n位置：$file\r\n结果：文件不存！\r\n时间：$executetime"; 
WriteToDelFiles($msg); 
}//END foreach 
} 
else 
{ 
$msg = "\r\n未在Body中解析到数据\r\nBody原始数据：$arcBodyRow[body]\r\n时间：$executetime"; 
WriteToDelFiles($msg); 
} 
return true; 
} 
//获取真实路径 
function GetTruePath($siterefer='', $sitepath='') 
{ 
$truepath = $GLOBALS['cfg_basedir']; 
return $truepath; 
} 
?>