89 lines
2.2 KiB
PHP
89 lines
2.2 KiB
PHP
<?php
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/**
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* Piwik - Open source web analytics
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*
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* @link http://piwik.org
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* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
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*
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*/
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namespace Piwik\Unzip;
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/**
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* @see libs/PclZip
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*/
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require_once PIWIK_INCLUDE_PATH . '/libs/PclZip/pclzip.lib.php';
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/**
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* Unzip wrapper around PclZip
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*
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*/
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class PclZip implements UncompressInterface
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{
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/**
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* @var PclZip
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*/
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private $pclzip;
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/**
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* @var string
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*/
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public $filename;
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/**
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* Constructor
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*
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* @param string $filename Name of the .zip archive
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*/
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public function __construct($filename)
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{
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$this->pclzip = new \PclZip($filename);
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$this->filename = $filename;
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}
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/**
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* Extract files from archive to target directory
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*
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* @param string $pathExtracted Absolute path of target directory
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* @return mixed Array of filenames if successful; or 0 if an error occurred
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*/
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public function extract($pathExtracted)
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{
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$pathExtracted = str_replace('\\', '/', $pathExtracted);
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$list = $this->pclzip->listContent();
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if (empty($list)) {
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return 0;
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}
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foreach ($list as $entry) {
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$filename = str_replace('\\', '/', $entry['stored_filename']);
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$parts = explode('/', $filename);
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if (!strncmp($filename, '/', 1) ||
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array_search('..', $parts) !== false ||
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strpos($filename, ':') !== false
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) {
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return 0;
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}
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}
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// PCLZIP_CB_PRE_EXTRACT callback returns 0 to skip, 1 to resume, or 2 to abort
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return $this->pclzip->extract(
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PCLZIP_OPT_PATH, $pathExtracted,
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PCLZIP_OPT_STOP_ON_ERROR,
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PCLZIP_OPT_REPLACE_NEWER,
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PCLZIP_CB_PRE_EXTRACT, function ($p_event, &$p_header) use ($pathExtracted) {
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return strncmp($p_header['filename'], $pathExtracted, strlen($pathExtracted)) ? 0 : 1;
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}
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);
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}
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/**
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* Get error status string for the latest error
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*
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* @return string
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*/
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public function errorInfo()
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{
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return $this->pclzip->errorInfo(true);
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}
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}
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