PHP ファイルのダウンロード class_PHP チュートリアル

   
//============================================== =====
// 使用例：
// $download=new download('php,exe,html',false);   
// if(!$download->downloadfile($filename))
// {
// echo $download->geterrormsg();   
// }
//========================================== =========
クラス ダウンロード{
var $debug=true;   
var $errormsg='';   
var $Filter=array();   
var $filename='';   
var $mineType='text/plain';   
var $xlq_filetype=array();   

関数 download($fileFilter='',$isdebug=true)
{
$this->setFilter($fileFilter);   
$this->setdebug($isdebug);           
$this->setfiletype();   
}

関数 setFilter($fileFilter)
{
if(empty($fileFilter)) return ;   
$this->Filter=explode(',',strto lower($fileFilter));   
}
関数 setdebug($debug)
{
$this->debug=$debug;   
}

関数 setfilename($filename)
{
$this->filename=$filename;   
}

関数 downloadfile($filename)
{
$this->setfilename($filename);   
if($this->filecheck())
{
$fn = array_pop( explode( '/', strtr( $this->filename, '\', '/' ) ) );   
header( "Pragma: public" );   
header( "有効期限: 0" ); // 有効期限を設定
header( "Cache-Component: must-revalidate, post-check=0, pre-check=0" );   
header( "Content-type:".$this->mineType );   
header( "Content-Length: " . filesize( $this->filename ) );   
header( "Content-Disposition: attachment; filename="$fn"" );   
header( 'Content-Transfer-Encoding: binary' );   
readfile( $this->ファイル名 );   
true を返します。   
}else
{
return false;   
}
}
function geterrormsg()
{
return $this->errormsg;   
}   

関数 filecheck()
{
$filename=$this->filename;   
if(file_exists($filename))
{
$filetype=strto lower(array_pop(explode('.',$filename)));   
if(in_array($filetype,$this->Filter))
{
$this->errormsg.=$filename.'不允许下ダウンロード！';   
if($this->debug) exit($filename.'不允许下ダウンロード！') ;   
false を返します。   
}else
{
if ( function_exists( "mime_content_type" ) )
{
$this->mineType = mime_content_type( $filename );   
}
if(empty($this->mineType))
{
if( isset($this-> xlq_filetype[$filetype]) ) $this->mineType = $this->xlq_filetype[$filetype ];   
}
if(!empty($this->mineType))
return true;   
else
{
$this->errormsg.='获取'.$filename.'文件類型時候発生错误、または存在しません「定型文件型内」;   
if($this->debug) exit('获取文件类型出错');   
falseを返します。   
}
}
}else
{
$this->errormsg.=$filename.'存在しません!';   
if($this->debug) exit($filename.'存在しません!') ;   
falseを返します。   
}
}   

  function setfiletype()   
  {   
    $this->xlq_filetype['chm']='application/octet-stream';   
    $this->xlq_filetype['ppt']='application/vnd.ms-powerpoint';   
    $this->xlq_filetype['xls']='application/vnd.ms-excel';   
    $this->xlq_filetype['doc']='application/msword';   
    $this->xlq_filetype['exe']='application/octet-stream';   
    $this->xlq_filetype['rar']='application/octet-stream';   
    $this->xlq_filetype['js']="javascript/js";   
    $this->xlq_filetype['css']="text/css";   
    $this->xlq_filetype['hqx']="application/mac-binhex40";   
    $this->xlq_filetype['bin']="application/octet-stream";   
    $this->xlq_filetype['oda']="application/oda";   
    $this->xlq_filetype['pdf']="application/pdf";   
    $this->xlq_filetype['ai']="application/postsrcipt";   
    $this->xlq_filetype['eps']="application/postsrcipt";   
    $this->xlq_filetype['es']="application/postsrcipt";   
    $this->xlq_filetype['rtf']="application/rtf";   
    $this->xlq_filetype['mif']="application/x-mif";   
    $this->xlq_filetype['csh']="application/x-csh";   
    $this->xlq_filetype['dvi']="application/x-dvi";   
    $this->xlq_filetype['hdf']="application/x-hdf";   
    $this->xlq_filetype['nc']="application/x-netcdf";   
    $this->xlq_filetype['cdf']="application/x-netcdf";   
    $this->xlq_filetype['latex']="application/x-latex";   
    $this->xlq_filetype['ts']="application/x-troll-ts";   
    $this->xlq_filetype['src']="application/x-wais-source";   
    $this->xlq_filetype['zip']="application/zip";   
    $this->xlq_filetype['bcpio']="application/x-bcpio";   
    $this->xlq_filetype['cpio']="application/x-cpio";   
    $this->xlq_filetype['gtar']="application/x-gtar";   
    $this->xlq_filetype['shar']="application/x-shar";   
    $this->xlq_filetype['sv4cpio']="application/x-sv4cpio";   
    $this->xlq_filetype['sv4crc']="application/x-sv4crc";   
    $this->xlq_filetype['tar']="application/x-tar";   
    $this->xlq_filetype['ustar']="application/x-ustar";   
    $this->xlq_filetype['man']="application/x-troff-man";   
    $this->xlq_filetype['sh']="application/x-sh";   
    $this->xlq_filetype['tcl']="application/x-tcl";   
    $this->xlq_filetype['tex']="application/x-tex";   
    $this->xlq_filetype['texi']="application/x-texinfo";   
    $this->xlq_filetype['texinfo']="application/x-texinfo";   
    $this->xlq_filetype['t']="application/x-troff";   
    $this->xlq_filetype['tr']="application/x-troff";   
    $this->xlq_filetype['roff']="application/x-troff";   
    $this->xlq_filetype['shar']="application/x-shar";   
    $this->xlq_filetype['me']="application/x-troll-me";   
    $this->xlq_filetype['ts']="application/x-troll-ts";   
    $this->xlq_filetype['gif']="image/gif";   
    $this->xlq_filetype['jpeg']="image/pjpeg";   
$this->xlq_filetype['jpg']="image/pjpeg";   
$this->xlq_filetype['jpe']="image/pjpeg";   
$this->xlq_filetype['ras']="image/x-cmu-raster";   
$this->xlq_filetype['pbm']="image/x-portable-bitmap";   
$this->xlq_filetype['ppm']="image/x-portable-pixmap";   
$this->xlq_filetype['xbm']="image/x-xbitmap";   
$this->xlq_filetype['xwd']="image/x-xwindowdump";   
$this->xlq_filetype['ief']="image/ief";   
$this->xlq_filetype['tif']="image/tiff";   
$this->xlq_filetype['tiff']="image/tiff";   
$this->xlq_filetype['pnm']="image/x-portable-anymap";   
$this->xlq_filetype['pgm']="image/x-portable-graymap";   
$this->xlq_filetype['rgb']="image/x-rgb";   
$this->xlq_filetype['xpm']="image/x-xpixmap";   
$this->xlq_filetype['txt']="text/plain";   
$this->xlq_filetype['c']="text/plain";   
$this->xlq_filetype['cc']="text/plain";   
$this->xlq_filetype['h']="text/plain";   
$this->xlq_filetype['html']="text/html";   
$this->xlq_filetype['htm']="text/html";   
$this->xlq_filetype['htl']="text/html";   
$this->xlq_filetype['rtx']="text/richtext";   
$this->xlq_filetype['etx']="text/x-setext";   
$this->xlq_filetype['tsv']="テキスト/タブ区切り値";   
$this->xlq_filetype['mpeg']="video/mpeg";   
$this->xlq_filetype['mpg']="video/mpeg";   
$this->xlq_filetype['mpe']="video/mpeg";   
$this->xlq_filetype['avi']="video/x-msvideo";   
$this->xlq_filetype['qt']="video/quicktime";   
$this->xlq_filetype['mov']="video/quicktime";   
$this->xlq_filetype['moov']="video/quicktime";   
$this->xlq_filetype['movie']="video/x-sgi-movie";   
$this->xlq_filetype['au']="audio/basic";   
$this->xlq_filetype['snd']="audio/basic";   
$this->xlq_filetype['wav']="audio/x-wav";   
$this->xlq_filetype['aif']="audio/x-aiff";   
$this->xlq_filetype['aiff']="audio/x-aiff";   
$this->xlq_filetype['aifc']="audio/x-aiff";   
$this->xlq_filetype['swf']="application/x-shockwave-flash";   
}
}
?>