uploadclass.php

<?php

!defined('IN_TOA') && exit('Access Denied!');
 class upload_file
 {
 
  var $upfile_type,$upfile_size,$upfile_name,$upfile;
  var $d_alt,$extention_list,$tmp,$arri;
  var $datetime,$date;
  var $filestr,$size,$ext,$check;
  var $flash_directory,$extention,$file_path,$base_directory;
  var $url; //文件上传成功后跳转路径;
 
  function upload_file()
  {
  
   $this->set_url("index.php");          //初始化上传成功后跳转路径;
   $this->set_extention();             //初始化扩展名列表;
   $this->set_size(50);              //初始化上传文件KB限制;
   $this->set_date();               //设置目录名称;
   $this->set_datetime();             //设置文件名称前缀;
   $this->set_base_directory("data/uploadfile");  //初始化文件上传根目录名，可修改！;
  }
 
 
  function set_file_type($upfile_type)
  {
   $this->upfile_type = $upfile_type;       //取得文件类型;
  }
 
 
  function set_file_name($upfile_name)
  {
   $this->upfile_name = $upfile_name;       //取得文件名称;
  }
 
 
  function set_upfile($upfile)
  {
   $this->upfile = $upfile;            //取得文件在服务端储存的临时文件名;
  }
   
 
  function set_file_size($upfile_size)
  {
   $this->upfile_size = $upfile_size;       //取得文件尺寸;
  }
 
 
  function set_url($url)
  {
   $this->url = $url;               //设置成功上传文件后的跳转路径;
  }
 
 
  function get_extention()
  {
    $this->extention = preg_replace('/.*\.(.*[^\.].*)*/iU','\\1',$this->upfile_name); //取得文件扩展名;
  }
     
 
  function set_datetime()
  {
   $this->datetime = date("YmdHis");        //按时间生成文件名;
  }
 
 
  function set_date()
  {
   $this->date = date("Ymd");          //按日期生成目录名称;
  }
 
 
  function set_extention()
  {
   $this->extention_list = "doc|docx|xlsx|jpg|gif|rar|txt|pdf|zip|xls|ppt|esp|cad|3ds|img|psd|pdf|ai|log|mdb|pot|csv"; //默认允许上传的扩展名称;
  } 
 
 
  function set_size($size)
  {
   $this->size = $size;              //设置最大允许上传的文件大小;
  }
 
 
  function set_base_directory($directory)
  {
   $this->base_directory = $directory; //生成文件存储根目录;
  }
 
 
  function set_flash_directory()
  {
   $this->flash_directory = $this->base_directory."/".$this->date; //生成文件存储子目录;
  }
 
 
  function showerror($errstr="未知错误！"){
   echo "<script language=javascript>alert('$errstr');location='javascript:history.go(-1);';</script>";
   exit();
  }
 
 
  function go_to($str,$url)
  {
   echo "<script language='javascript'>alert('$str');location='$url';</script>";
   exit();
  }

 
  function mk_base_dir()
  {
   if (! file_exists($this->base_directory)){   //检测根目录是否存在;
    @mkdir($this->base_directory,0777);     //不存在则创建;
   }
  }

 
  function mk_dir()
  {
   if (! file_exists($this->flash_directory)){   //检测子目录是否存在;
    @mkdir($this->flash_directory,0777);     //不存在则创建;
   }
  } 
 
 
  function get_compare_extention()
  {
   $this->ext = explode("|",$this->extention_list);//以"|"来分解默认扩展名;
  }
 
 
  function check_extention()
  {
   for($i=0;each($this->ext);$i++)            //遍历数组;
   {
    if($this->ext[$i] == strtolower($this->extention)) //比较文件扩展名是否与默认允许的扩展名相符;
    {
     $this->check = true;               //相符则标记;
     break;
    }
   }
   if(!$this->check){$this->showerror("正确的扩展名必须为".$this->extention_list."其中的一种！");}
   //不符则警告
  }
 
 
  function check_size()
  {
   if($this->upfile_size > round($this->size*1024))     //文件的大小是否超过了默认的尺寸;
   {
    $this->showerror("上传附件不得超过".$this->size."KB"); //超过则警告;
   }
  }

 
  function set_file_path()
  {
   $this->file_path = $this->flash_directory."/".$this->datetime.".".$this->extention; //生成文件完整访问路径;
  }
 
 
  function copy_file()
  {
   if(copy($this->upfile,$this->file_path)){        //上传文件;
   	   if($_GET['filenumber']!=''){
		   get_publicfileadd($_GET['filenumber'],0,2,$_GET['officetype'],$this->upfile_name,$this->file_path);
	   }
	   echo "<script>window.opener.document.save.".$_GET[name].".value='".$this->file_path."';</script>";
	   echo '<script language="JavaScript">window.close()</script>';
   }else {
    print $this->showerror("意外错误，请重试！");     //上传失败;
   }
  }
 
 
  function save()
  {
   $this->set_flash_directory();  //初始化文件上传子目录名;
   $this->get_extention();     //获得文件扩展名;
   $this->get_compare_extention(); //以"|"来分解默认扩展名;
   $this->check_extention();    //检测文件扩展名是否违规;
   $this->check_size();      //检测文件大小是否超限;  
   $this->mk_base_dir();      //如果根目录不存在则创建；
   $this->mk_dir();        //如果子目录不存在则创建;
   $this->set_file_path();     //生成文件完整访问路径;
   $this->copy_file();       //上传文件;
  }
 
 }

?>