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() { $this->errormsg = ''; } }?>
// 使用范例：
?$filename='data.rar';
?$download=new download('php,exe,html',false);
? if(!$download->downloadfile($filename,'数据'))
? {
? echo $download->geterrormsg();
? }