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113 lines
3.4 KiB
113 lines
3.4 KiB
4 years ago
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<?php
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/**
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* This file is part of PHPOffice Common
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*
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* PHPOffice Common is free software distributed under the terms of the GNU Lesser
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* General Public License version 3 as published by the Free Software Foundation.
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*
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* For the full copyright and license information, please read the LICENSE
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* file that was distributed with this source code. For the full list of
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* contributors, visit https://github.com/PHPOffice/PHPWord/contributors.
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*
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* @link https://github.com/PHPOffice/Common
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* @copyright 2009-2016 PHPOffice Common contributors
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* @license http://www.gnu.org/licenses/lgpl.txt LGPL version 3
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*/
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namespace PhpOffice\Common;
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/**
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* Drawing
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*/
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class File
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{
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/**
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* Verify if a file exists
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*
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* @param string $pFilename Filename
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* @return bool
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*/
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public static function fileExists($pFilename)
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{
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// Sick construction, but it seems that
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// file_exists returns strange values when
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// doing the original file_exists on ZIP archives...
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if (strtolower(substr($pFilename, 0, 3)) == 'zip') {
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// Open ZIP file and verify if the file exists
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$zipFile = substr($pFilename, 6, strpos($pFilename, '#') - 6);
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$archiveFile = substr($pFilename, strpos($pFilename, '#') + 1);
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$zip = new \ZipArchive();
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if ($zip->open($zipFile) === true) {
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$returnValue = ($zip->getFromName($archiveFile) !== false);
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$zip->close();
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return $returnValue;
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}
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return false;
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}
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// Regular file_exists
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return file_exists($pFilename);
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}
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/**
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* Returns the content of a file
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*
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* @param string $pFilename Filename
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* @return string
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*/
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public static function fileGetContents($pFilename)
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{
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if (!self::fileExists($pFilename)) {
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return false;
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}
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if (strtolower(substr($pFilename, 0, 3)) == 'zip') {
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// Open ZIP file and verify if the file exists
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$zipFile = substr($pFilename, 6, strpos($pFilename, '#') - 6);
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$archiveFile = substr($pFilename, strpos($pFilename, '#') + 1);
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$zip = new \ZipArchive();
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if ($zip->open($zipFile) === true) {
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$returnValue = $zip->getFromName($archiveFile);
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$zip->close();
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return $returnValue;
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}
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return false;
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}
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// Regular file contents
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return file_get_contents($pFilename);
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}
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/**
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* Returns canonicalized absolute pathname, also for ZIP archives
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*
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* @param string $pFilename
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* @return string
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*/
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public static function realpath($pFilename)
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{
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// Try using realpath()
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$returnValue = realpath($pFilename);
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// Found something?
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if ($returnValue == '' || is_null($returnValue)) {
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$pathArray = explode('/', $pFilename);
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while (in_array('..', $pathArray) && $pathArray[0] != '..') {
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$numPathArray = count($pathArray);
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for ($i = 0; $i < $numPathArray; ++$i) {
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if ($pathArray[$i] == '..' && $i > 0) {
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unset($pathArray[$i]);
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unset($pathArray[$i - 1]);
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break;
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}
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}
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}
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$returnValue = implode('/', $pathArray);
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}
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// Return
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return $returnValue;
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}
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}
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