New file |
0,0 → 1,178 |
<?php |
/** |
* PHPExcel |
* |
* Copyright (c) 2006 - 2013 PHPExcel |
* |
* This library is free software; you can redistribute it and/or |
* modify it under the terms of the GNU Lesser General Public |
* License as published by the Free Software Foundation; either |
* version 2.1 of the License, or (at your option) any later version. |
* |
* This library is distributed in the hope that it will be useful, |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
* Lesser General Public License for more details. |
* |
* You should have received a copy of the GNU Lesser General Public |
* License along with this library; if not, write to the Free Software |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
* |
* @category PHPExcel |
* @package PHPExcel_Shared |
* @copyright Copyright (c) 2006 - 2013 PHPExcel (http://www.codeplex.com/PHPExcel) |
* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL |
* @version ##VERSION##, ##DATE## |
*/ |
|
|
/** |
* PHPExcel_Shared_File |
* |
* @category PHPExcel |
* @package PHPExcel_Shared |
* @copyright Copyright (c) 2006 - 2013 PHPExcel (http://www.codeplex.com/PHPExcel) |
*/ |
class PHPExcel_Shared_File |
{ |
/* |
* Use Temp or File Upload Temp for temporary files |
* |
* @protected |
* @var boolean |
*/ |
protected static $_useUploadTempDirectory = FALSE; |
|
|
/** |
* Set the flag indicating whether the File Upload Temp directory should be used for temporary files |
* |
* @param boolean $useUploadTempDir Use File Upload Temporary directory (true or false) |
*/ |
public static function setUseUploadTempDirectory($useUploadTempDir = FALSE) { |
self::$_useUploadTempDirectory = (boolean) $useUploadTempDir; |
} // function setUseUploadTempDirectory() |
|
|
/** |
* Get the flag indicating whether the File Upload Temp directory should be used for temporary files |
* |
* @return boolean Use File Upload Temporary directory (true or false) |
*/ |
public static function getUseUploadTempDirectory() { |
return self::$_useUploadTempDirectory; |
} // function getUseUploadTempDirectory() |
|
|
/** |
* Verify if a file exists |
* |
* @param string $pFilename Filename |
* @return bool |
*/ |
public static function file_exists($pFilename) { |
// Sick construction, but it seems that |
// file_exists returns strange values when |
// doing the original file_exists on ZIP archives... |
if ( strtolower(substr($pFilename, 0, 3)) == 'zip' ) { |
// Open ZIP file and verify if the file exists |
$zipFile = substr($pFilename, 6, strpos($pFilename, '#') - 6); |
$archiveFile = substr($pFilename, strpos($pFilename, '#') + 1); |
|
$zip = new ZipArchive(); |
if ($zip->open($zipFile) === true) { |
$returnValue = ($zip->getFromName($archiveFile) !== false); |
$zip->close(); |
return $returnValue; |
} else { |
return false; |
} |
} else { |
// Regular file_exists |
return file_exists($pFilename); |
} |
} |
|
/** |
* Returns canonicalized absolute pathname, also for ZIP archives |
* |
* @param string $pFilename |
* @return string |
*/ |
public static function realpath($pFilename) { |
// Returnvalue |
$returnValue = ''; |
|
// Try using realpath() |
if (file_exists($pFilename)) { |
$returnValue = realpath($pFilename); |
} |
|
// Found something? |
if ($returnValue == '' || ($returnValue === NULL)) { |
$pathArray = explode('/' , $pFilename); |
while(in_array('..', $pathArray) && $pathArray[0] != '..') { |
for ($i = 0; $i < count($pathArray); ++$i) { |
if ($pathArray[$i] == '..' && $i > 0) { |
unset($pathArray[$i]); |
unset($pathArray[$i - 1]); |
break; |
} |
} |
} |
$returnValue = implode('/', $pathArray); |
} |
|
// Return |
return $returnValue; |
} |
|
/** |
* Get the systems temporary directory. |
* |
* @return string |
*/ |
public static function sys_get_temp_dir() |
{ |
if (self::$_useUploadTempDirectory) { |
// use upload-directory when defined to allow running on environments having very restricted |
// open_basedir configs |
if (ini_get('upload_tmp_dir') !== FALSE) { |
if ($temp = ini_get('upload_tmp_dir')) { |
if (file_exists($temp)) |
return realpath($temp); |
} |
} |
} |
|
// sys_get_temp_dir is only available since PHP 5.2.1 |
// http://php.net/manual/en/function.sys-get-temp-dir.php#94119 |
if ( !function_exists('sys_get_temp_dir')) { |
if ($temp = getenv('TMP') ) { |
if ((!empty($temp)) && (file_exists($temp))) { return realpath($temp); } |
} |
if ($temp = getenv('TEMP') ) { |
if ((!empty($temp)) && (file_exists($temp))) { return realpath($temp); } |
} |
if ($temp = getenv('TMPDIR') ) { |
if ((!empty($temp)) && (file_exists($temp))) { return realpath($temp); } |
} |
|
// trick for creating a file in system's temporary dir |
// without knowing the path of the system's temporary dir |
$temp = tempnam(__FILE__, ''); |
if (file_exists($temp)) { |
unlink($temp); |
return realpath(dirname($temp)); |
} |
|
return null; |
} |
|
// use ordinary built-in PHP function |
// There should be no problem with the 5.2.4 Suhosin realpath() bug, because this line should only |
// be called if we're running 5.2.1 or earlier |
return realpath(sys_get_temp_dir()); |
} |
|
} |