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 = $timeend - $timestart;
/**
* Class Unzipper
*/
class Unzipper {
public $localdir = '.';
public $zipfiles = array();
public function __construct() {
//read directory and pick .zip and .gz files
if ($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' => '.zip or .gz or .rar files found, ready for extraction');
}
else {
$GLOBALS['status'] = array('info' => 'No .zip or .gz or rar files found. So only zipping functionality available.');
}
}
}
/**
* Prepare and check zipfile for extraction.
*
* @param $archive
* @param $destination
*/
public function prepareExtraction($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($extpath);
}
}
//allow only local existing archives to extract
if (in_array($archive, $this->zipfiles)) {
self::extract($archive, $extpath);
}
}
/**
* Checks file extension and calls suitable extractor functions.
*
* @param $archive
* @param $destination
*/
public static function extract($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' => 'Error: Your PHP version does not support unzip functionality.');
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' => 'Files unzipped successfully');
}
else {
$GLOBALS['status'] = array('error' => 'Error: Directory not writeable by webserver.');
}
}
else {
$GLOBALS['status'] = array('error' => 'Error: Cannot read .zip archive.');
}
}
/**
* Decompress a .gz File.
*
* @param $archive
* @param $destination
*/
public static function extractGzipFile($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");
$file = fopen($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.');
}
else {
$GLOBALS['status'] = array('error' => 'Error unzipping file.');
}
}
/**
* Decompress/extract a Rar archive using RarArchive.
*
* @param $archive
* @param $destination
*/
public static function extractRarArchive($archive, $destination) {
// Check if webserver supports unzipping.
if (!class_exists('RarArchive')) {
$GLOBALS['status'] = array('error' => 'Error: Your PHP version does not support .rar archive functionality. How to install RarArchive');
return;
}
// Check if archive is readable.
if ($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__)) {
$filePath = "$folder/$f";
// Remove prefix from file path before add to zip.
$localPath = substr($filePath, $exclusiveLength);
if (is_file($filePath)) {
$zipFile->addFile($filePath, $localPath);
}
elseif (is_dir($filePath)) {
// Add sub-directory.
$zipFile->addEmptyDir($localPath);
self::folderToZip($filePath, $zipFile, $exclusiveLength);
}
}
}
closedir($handle);
}
/**
* Zip a folder (including itself).
* Usage:
* Zipper::zipDir('path/to/sourceDir', 'path/to/out.zip');
*
* @param string $sourcePath
* Relative path of directory to be zipped.
*
* @param string $outZipPath
* Relative path of the resulting output zip file.
*/
public static function zipDir($sourcePath, $outZipPath) {
$pathInfo = pathinfo($sourcePath);
$parentPath = $pathInfo['dirname'];
$dirName = $pathInfo['basename'];
$z = new ZipArchive();
$z->open($outZipPath, ZipArchive::CREATE);
$z->addEmptyDir($dirName);
if ($sourcePath == $dirName) {
self::folderToZip($sourcePath, $z, 0);
}
else {
self::folderToZip($sourcePath, $z, strlen("$parentPath/"));
}
$z->close();
$GLOBALS['status'] = array('success' => 'Successfully created archive ' . $outZipPath);
}
}
?>
File Unzipper + Zipper
Status:
Processing Time: seconds
Unzipper version:
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