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<?php /** * The Unzipper extracts .zip or .rar archives and .gz files on webservers. * It's handy if you do not have shell access. E.g. if you want to upload a lot * of files (php framework or image collection) as an archive to save time. * As of version 0.1.0 it also supports creating archives. * * @author Andreas Tasch, at[tec], attec.at * @license GNU GPL v3 * @package attec.toolbox * @version 0.1.1 */ define('VERSION', '0.1.1'); $timestart = microtime(TRUE); $GLOBALS['status'] = array(); $unzipper = new Unzipper; if (isset($_POST['dounzip'])) { // Check if an archive was selected for unzipping. $archive = isset($_POST['zipfile']) ? strip_tags($_POST['zipfile']) : ''; $destination = isset($_POST['extpath']) ? strip_tags($_POST['extpath']) : ''; $unzipper->prepareExtraction($archive, $destination); } if (isset($_POST['dozip'])) { $zippath = !empty($_POST['zippath']) ? strip_tags($_POST['zippath']) : '.'; // Resulting zipfile e.g. zipper--2016-07-23--11-55.zip. $zipfile = 'zipper-' . date("Y-m-d--H-i") . '.zip'; Zipper::zipDir($zippath, $zipfile); } $timeend = microtime(TRUE); $time = round($timeend - $timestart, 4); /** * Class Unzipper */ class Unzipper { public $localdir = '.'; public $zipfiles = array(); public function __construct() { // Read directory and pick .zip, .rar and .gz files. if ($dh = opendir($this->localdir)) { while (($file = readdir($dh)) !== FALSE) { if (pathinfo($file, PATHINFO_EXTENSION) === 'zip' || pathinfo($file, PATHINFO_EXTENSION) === 'gz' || pathinfo($file, PATHINFO_EXTENSION) === 'rar' ) { $this->zipfiles[] = $file; } } closedir($dh); if (!empty($this->zipfiles)) { $GLOBALS['status'] = array('info' => '.找到 zip 或 .gz 或 .rar 文件，准备提取或解压'); } else { $GLOBALS['status'] = array('info' => '未找到 .zip 或 .gz 或 rar 文件。所以只有压缩功能可用.'); } } } /** * Prepare and check zipfile for extraction. * * @param string $archive * The archive name including file extension. E.g. my_archive.zip. * @param string $destination * The relative destination path where to extract files. */ public function prepareExtraction($archive, $destination = '') { // Determine paths. if (empty($destination)) { $extpath = $this->localdir; } else { $extpath = $this->localdir . '/' . $destination; // Todo: move this to extraction function. if (!is_dir($extpath)) { mkdir($extpath); } } // Only local existing archives are allowed to be extracted. if (in_array($archive, $this->zipfiles)) { self::extract($archive, $extpath); } } /** * Checks file extension and calls suitable extractor functions. * * @param string $archive * The archive name including file extension. E.g. my_archive.zip. * @param string $destination * The relative destination path where to extract files. */ public static function extract($archive, $destination) { $ext = pathinfo($archive, PATHINFO_EXTENSION); switch ($ext) { case 'zip': self::extractZipArchive($archive, $destination); break; case 'gz': self::extractGzipFile($archive, $destination); break; case 'rar': self::extractRarArchive($archive, $destination); break; } } /** * Decompress/extract a zip archive using ZipArchive. * * @param $archive * @param $destination */ public static function extractZipArchive($archive, $destination) { // Check if webserver supports unzipping. if (!class_exists('ZipArchive')) { $GLOBALS['status'] = array('error' => '错误：您的 PHP 版本不支持解压缩功能.'); return; } $zip = new ZipArchive; // Check if archive is readable. if ($zip->open($archive) === TRUE) { // Check if destination is writable if (is_writeable($destination . '/')) { $zip->extractTo($destination); $zip->close(); $GLOBALS['status'] = array('success' => '文件解压缩成功'); } else { $GLOBALS['status'] = array('error' => '错误：Web 服务器无法写入目录.'); } } else { $GLOBALS['status'] = array('error' => '错误：无法读取 .zip 存档.'); } } /** * Decompress a .gz File. * * @param string $archive * The archive name including file extension. E.g. my_archive.zip. * @param string $destination * The relative destination path where to extract files. */ public static function extractGzipFile($archive, $destination) { // Check if zlib is enabled if (!function_exists('gzopen')) { $GLOBALS['status'] = array('error' => 'Error: Your PHP has no zlib support enabled.'); return; } $filename = pathinfo($archive, PATHINFO_FILENAME); $gzipped = gzopen($archive, "rb"); $file = fopen($destination . '/' . $filename, "w"); while ($string = gzread($gzipped, 4096)) { fwrite($file, $string, strlen($string)); } gzclose($gzipped); fclose($file); // Check if file was extracted. if (file_exists($destination . '/' . $filename)) { $GLOBALS['status'] = array('success' => 'File unzipped successfully.'); // If we had a tar.gz file, let's extract that tar file. if (pathinfo($destination . '/' . $filename, PATHINFO_EXTENSION) == 'tar') { $phar = new PharData($destination . '/' . $filename); if ($phar->extractTo($destination)) { $GLOBALS['status'] = array('success' => 'Extracted tar.gz archive successfully.'); // Delete .tar. unlink($destination . '/' . $filename); } } } else { $GLOBALS['status'] = array('error' => 'Error unzipping file.'); } } /** * Decompress/extract a Rar archive using RarArchive. * * @param string $archive * The archive name including file extension. E.g. my_archive.zip. * @param string $destination * The relative destination path where to extract files. */ public static function extractRarArchive($archive, $destination) { // Check if webserver supports unzipping. if (!class_exists('RarArchive')) { $GLOBALS['status'] = array('error' => 'Error: Your PHP version does not support .rar archive functionality. <a class="info" href="http://php.net/manual/en/rar.installation.php" target="_blank">How to install RarArchive</a>'); return; } // Check if archive is readable. if ($rar = RarArchive::open($archive)) { // Check if destination is writable if (is_writeable($destination . '/')) { $entries = $rar->getEntries(); foreach ($entries as $entry) { $entry->extract($destination); } $rar->close(); $GLOBALS['status'] = array('success' => 'Files extracted successfully.'); } else { $GLOBALS['status'] = array('error' => 'Error: Directory not writeable by webserver.'); } } else { $GLOBALS['status'] = array('error' => 'Error: Cannot read .rar archive.'); } } } /** * Class Zipper * * Copied and slightly modified from http://at2.php.net/manual/en/class.ziparchive.php#110719 * @author umbalaconmeogia */ class Zipper { /** * Add files and sub-directories in a folder to zip file. * * @param string $folder * Path to folder that should be zipped. * * @param ZipArchive $zipFile * Zipfile where files end up. * * @param int $exclusiveLength * Number of text to be exclusived from the file path. */ private static function folderToZip($folder, &$zipFile, $exclusiveLength) { $handle = opendir($folder); while (FALSE !== $f = readdir($handle)) { // Check for local/parent path or zipping file itself and skip. if ($f != '.' && $f != '..' && $f != basename(__FILE__)