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<?php
/**
* This file is part of PHPOffice Common
*
* PHPOffice Common is free software distributed under the terms of the GNU Lesser
* General Public License version 3 as published by the Free Software Foundation.
*
* For the full copyright and license information, please read the LICENSE
* file that was distributed with this source code. For the full list of
* contributors, visit https://github.com/PHPOffice/PHPWord/contributors.
*
* @link https://github.com/PHPOffice/Common
* @copyright 2009-2016 PHPOffice Common contributors
* @license http://www.gnu.org/licenses/lgpl.txt LGPL version 3
*/
namespace PhpOffice\Common;
/**
* Drawing
*/
class File
{
/**
* Verify if a file exists
*
* @param string $pFilename Filename
* @return bool
*/
public static function fileExists($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 $returnValue;
}
return false;
}
// Regular file_exists
return file_exists($pFilename);
}
/**
* Returns the content of a file
*
* @param string $pFilename Filename
* @return string
*/
public static function fileGetContents($pFilename)
{
if (!self::fileExists($pFilename)) {
return false;
}
if (strtolower(substr($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);
$zip->close();
return $returnValue;
}
return false;
}
// Regular file contents
return file_get_contents($pFilename);
}
/**
* Returns canonicalized absolute pathname, also for ZIP archives
*
* @param string $pFilename
* @return string
*/
public static function realpath($pFilename)
{
// Try using realpath()
$returnValue = realpath($pFilename);
// Found something?
if ($returnValue == '' || is_null($returnValue)) {
$pathArray = explode('/', $pFilename);
while (in_array('..', $pathArray) && $pathArray[0] != '..') {
$numPathArray = count($pathArray);
for ($i = 0; $i < $numPathArray; ++$i) {
if ($pathArray[$i] == '..' && $i > 0) {
unset($pathArray[$i]);
unset($pathArray[$i - 1]);
break;
}
}
}
$returnValue = implode('/', $pathArray);
}
// Return
return $returnValue;
}
}