PHP文件下载过滤类
<?php /**
* file download class
* Create Time:06/23/2009
* Author:DAKER.W
* QQ:451021477
*/
class Download{
private $debug = false;
private $errorMsg = '';
private $filter = array();
private $fileName = '';
private $mineType = '';
private $xlq_filetype = array();
private $limitTime = 60;
/**
* @param string $fileFilter
* @param boolean $isDebug
*/
function __construct($fileFilter='', $isDebug=true)
{
$this->setFilter($fileFilter);
$this->setDebug($isDebug);
$this->setFileType();
}
function downloadfile($filename)
{
$this->fileName = $filename;
if($this->filecheck()){
$fn = basename($this->fileName);
ob_end_clean();
@set_time_limit($this->limitTime);
header('Cache-control: max-age=31536000');
header('Expires: '.gmdate('D, d M Y H:i:s',time()+31536000).' GMT');
header('Content-Encoding: none');
header('Content-Length: '.filesize($this->fileName));
header('Content-Disposition: attachment; filename='.$fn);
header('Content-Type: '.$this->mineType);
readfile($this->fileName);
return true;
}else{
return false;
}
}
function filecheck()
{
$fileName = $this->fileName;
if(file_exists($fileName)){
$fileType = strtolower(array_pop(explode(".", $fileName)));
if(!in_array($fileType, $this->filter)){
$this->errorMsg .= sprintf("%s can't download!", $fileName);
if($this->debug)exit(sprintf("%s can't download!", $fileName));
return false;
}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 {
$this->errorMsg .= "Can't get file type!";
if($this->debug)exit("Can't get file type!");
return false;
}
}
}else {
$this->errorMsg .= sprintf("%s isn't exists!", $fileName);
if($this->debug)exit(sprintf("%s isn't exists!", $fileName));
return false;
}
}
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']="javascrīpt/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']="text/tab-separated-values";
$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";
$this->xlq_filetype['swf']="application/x-shockwave-flash";
}
function setFilter($fileFilter)
{
if(empty($fileFilter))return ;
$this->filter = explode(",", strtolower($fileFilter));
}
function setDebug($debug)
{
$this->debug = $debug;
}
function setlimittime($limittime)
{
$this->limitTime = $limittime;
}
function getfilename($filename)
{
return $this->fileName;
}
function getErrorMsgs()
{
return $this->errorMsg;
}
function __destruct()
{
$this->errorMsg = '';
}
}
?>Nach dem Login kopieren
//?? 使用范例：
?$filename='data.rar';
?$download=new download('php,exe,html',false);
? if(!$download->downloadfile($filename,'数据'))
? {
????????? echo $download->geterrormsg();
? }
