PHP文件下载过滤类
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PHP文件下载过滤类
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Java代碼?? <?php?? /**? $filename?=?'index.php';? $download?=?new?Download('php,exe,html',?false);? if?(!$download->downloadfile($filename))?{? ????echo?$download->getErrorMsgs();? }? */?? 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))?{?? ????????????????$this->errorMsg?.=?sprintf("%s?不允許下載",?$fileName);?? ????????????????if?($this->debug)?exit(sprintf("%s?不允許下載",?$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?.=?"獲取文件類型出錯(cuò)";?? ????????????????????if?($this->debug)?exit("獲取文件類型出錯(cuò)");?? ????????????????????return?false;?? ????????????????}?? ????????????}?? ????????}?else?{?? ????????????$this->errorMsg?.=?sprintf("%s?不存在",?$fileName);?? ????????????if?($this->debug)?exit(sprintf("%s?不存在",?$fileName));?? ????????????return?false;?? ????????}?? ????}?? ?? ????function?setFileType()?{?? ????????$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']?=?"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";?? ????????$this->xlq_filetype['tsv']?=?"text/tab-separated-values";?? ????????$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?=?'';?? ????}?? }?? ?> ?
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