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<?php namespace Macellan\Zip;
use ZipArchive;
use Exception;
/**
* Macellan\Zip - ZipArchive toolbox
*
* This class provide methods to handle single zip archive
*
* @package Macellan\Zip
* @author ZanySoft <info@zanysoft.co>
* @license MIT
*
*/
class Zip {
/**
* Select files to skip
*
* @var string
*/
private $skip_mode = "NONE";
/**
* Supported skip modes
*
* @var array
*/
private $supported_skip_modes = ["HIDDEN", "ALL", "NONE"];
/**
* Mask for the extraction folder (if it should be created)
*
* @var int
*/
private $mask = 0777;
/**
* ZipArchive internal pointer
*
* @var object
*/
private $zip_archive = null;
/**
* zip file name
*
* @var string
*/
private $zip_file = null;
/**
* zip file password (only for extract)
*
* @var string
*/
private $password = null;
/**
* Current base path
*
* @var string
*/
private $path = null;
/**
* Array of well known zip status codes
*
* @var array
*/
private static $zip_status_codes = Array(
ZipArchive::ER_OK => 'No error',
ZipArchive::ER_MULTIDISK => 'Multi-disk zip archives not supported',
ZipArchive::ER_RENAME => 'Renaming temporary file failed',
ZipArchive::ER_CLOSE => 'Closing zip archive failed',
ZipArchive::ER_SEEK => 'Seek error',
ZipArchive::ER_READ => 'Read error',
ZipArchive::ER_WRITE => 'Write error',
ZipArchive::ER_CRC => 'CRC error',
ZipArchive::ER_ZIPCLOSED => 'Containing zip archive was closed',
ZipArchive::ER_NOENT => 'No such file',
ZipArchive::ER_EXISTS => 'File already exists',
ZipArchive::ER_OPEN => 'Can\'t open file',
ZipArchive::ER_TMPOPEN => 'Failure to create temporary file',
ZipArchive::ER_ZLIB => 'Zlib error',
ZipArchive::ER_MEMORY => 'Malloc failure',
ZipArchive::ER_CHANGED => 'Entry has been changed',
ZipArchive::ER_COMPNOTSUPP => 'Compression method not supported',
ZipArchive::ER_EOF => 'Premature EOF',
ZipArchive::ER_INVAL => 'Invalid argument',
ZipArchive::ER_NOZIP => 'Not a zip archive',
ZipArchive::ER_INTERNAL => 'Internal error',
ZipArchive::ER_INCONS => 'Zip archive inconsistent',
ZipArchive::ER_REMOVE => 'Can\'t remove file',
ZipArchive::ER_DELETED => 'Entry has been deleted'
);
/**
* Class constructor
*
* @param string $zip_file ZIP file name
*
*/
public function __construct($zip_file) {
if (empty($zip_file)) {
throw new \Exception(self::getStatus(ZipArchive::ER_NOENT));
}
$this->zip_file = $zip_file;
}
/**
* Open a zip archive
*
* @param string $zip_file ZIP file name
*
* @return \Macellan\Zip\Zip
*/
public static function open($zip_file) {
try {
$zip = new Zip($zip_file);
$zip->setArchive(self::openZipFile($zip_file));
} catch (\Exception $ze) {
throw $ze;
}
return $zip;
}
/**
* Check a zip archive
*
* @param string $zip_file ZIP file name
*
* @return bool
*/
public static function check($zip_file) {
try {
$zip = self::openZipFile($zip_file, ZipArchive::CHECKCONS);
$zip->close();
} catch (Exception $ze) {
throw $ze;
}
return true;
}
/**
* Create a new zip archive
*
* @param string $zip_file ZIP file name
* @param bool $overwrite overwrite existing file (if any)
*
* @return \Macellan\Zip\Zip
*/
public static function create($zip_file, $overwrite = false) {
$overwrite = filter_var($overwrite, FILTER_VALIDATE_BOOLEAN, array(
"options" => array(
"default" => false
)
));
try {
$zip = new Zip($zip_file);
if ($overwrite) {
$zip->setArchive(self::openZipFile($zip_file, ZipArchive::CREATE | ZipArchive::OVERWRITE));
} else {
$zip->setArchive(self::openZipFile($zip_file, ZipArchive::CREATE));
}
} catch (Exception $ze) {
throw $ze;
}
return $zip;
}
/**
* Set files to skip
*
* @param string $mode [HIDDEN, ZANYSOFT, ALL, NONE]
*
* @return \Macellan\Zip\Zip
*/
final public function setSkipped($mode) {
$mode = strtoupper($mode);
if (!in_array($mode, $this->supported_skip_modes)) {
throw new Exception("Unsupported skip mode");
}
$this->skip_mode = $mode;
return $this;
}
/**
* Get current skip mode (HIDDEN, ZANYSOFT, ALL, NONE)
*
* @return string
*/
final public function getSkipped() {
return $this->skip_mode;
}
/**
* Set extraction password
*
* @param string $password
*
* @return \Macellan\Zip\Zip
*/
final public function setPassword($password) {
$this->password = $password;
return $this;
}
/**
* Get current extraction password
*
* @return string
*/
final public function getPassword() {
return $this->password;
}
/**
* Set current base path (just to add relative files to zip archive)
*
* @param string $path
*
* @return \Macellan\Zip\Zip
*/
final public function setPath($path) {
if (!file_exists($path)) {
throw new Exception("Not existent path");
}
$this->path = ($path[strlen($path) - 1] == "/" ? $path : $path . "/");
return $this;
}
/**
* Get current base path
*
* @return string
*/
final public function getPath() {
return $this->path;
}
/**
* Set extraction folder mask
*
* @param int $mask
*
* @return \Macellan\Zip\Zip
*/
final public function setMask($mask) {
$mask = filter_var($mask, FILTER_VALIDATE_INT, array(
"options" => array(
"max_range" => 0777,
"default" => 0777
), 'flags' => FILTER_FLAG_ALLOW_OCTAL
));
$this->mask = $mask;
return $this;
}
/**
* Get current extraction folder mask
*
* @return int
*/
final public function getMask() {
return $this->mask;
}
/**
* Set the current ZipArchive object
*
* @param \ZipArchive $zip
*
* @return \Macellan\Zip\Zip
*/
final public function setArchive(ZipArchive $zip) {
$this->zip_archive = $zip;
return $this;
}
/**
* Get current ZipArchive object
*
* @return \ZipArchive
*/
final public function getArchive() {
return $this->zip_archive;
}
/**
* Get current zip file
*
* @return string
*/
final public function getZipFile() {
return $this->zip_file;
}
/**
* Get an SplFileObject for the zip file
* @return SplFileObject
*/
public function getFileObject() {
return new \SplFileObject($this->zip_file);
}
/**
* Get a list of files in archive (array)
*
* @return array
*/
public function listFiles() {
$list = Array();
for ($i = 0; $i < $this->zip_archive->numFiles; $i++) {
$name = $this->zip_archive->getNameIndex($i);
if ($name === false) {
throw new Exception(self::getStatus($this->zip_archive->status));
}
array_push($list, $name);
}
return $list;
}
/**
* Check if zip archive has a file
*
* @param string $file File
* @param int $flags (optional) ZipArchive::FL_NOCASE, ZipArchive::FL_NODIR seperated by bitwise OR
*
* @return bool
*/
public function has($file, $flags = 0) {
if (empty($file)) {
throw new Exception('Invalid File');
}
return $this->zip_archive->locateName($file, $flags) !== false;
}
/**
* Extract files from zip archive
*
* @param string $destination Destination path
* @param mixed $files (optional) a filename or an array of filenames
*
* @return bool
*/
public function extract($destination, $files = null) {
if (empty($destination)) {
throw new Exception('Invalid destination path');
}
if (!file_exists($destination)) {
$omask = umask(0);
$action = mkdir($destination, $this->mask, true);
umask($omask);
if ($action === false) {
throw new Exception("Error creating folder " . $destination);
}
}
if (!is_writable($destination)) {
throw new Exception('Destination path not writable');
}
if (is_array($files) && @sizeof($files) != 0) {
$file_matrix = $files;
} else {
$file_matrix = $this->getArchiveFiles();
}
if (!empty($this->password)) {
$this->zip_archive->setPassword($this->password);
}
$extract = $this->zip_archive->extractTo($destination, $file_matrix);
if ($extract === false) {
throw new Exception(self::getStatus($this->zip_archive->status));
}
return true;
}
/**
* Add files to zip archive
*
* @param mixed $file_name_or_array filename to add or an array of filenames
* @param bool $flatten_root_folder in case of directory, specify if root folder should be flatten or not
*
* @return \Macellan\Zip\Zip
*/
public function add($file_name_or_array, $flatten_root_folder = false) {
if (empty($file_name_or_array)) {
throw new Exception(self::getStatus(ZipArchive::ER_NOENT));
}
$flatten_root_folder = filter_var($flatten_root_folder, FILTER_VALIDATE_BOOLEAN, array(
"options" => array(
"default" => false
)
));
try {
if (is_array($file_name_or_array)) {
foreach ($file_name_or_array as $file_name) {
$this->addItem($file_name, $flatten_root_folder);
}
} else {
$this->addItem($file_name_or_array, $flatten_root_folder);
}
} catch (Exception $ze) {
throw $ze;
}
return $this;
}
/**
* Delete files from zip archive
*
* @param mixed $file_name_or_array filename to delete or an array of filenames
*
* @return \Macellan\Zip\Zip
*/
public function delete($file_name_or_array) {
if (empty($file_name_or_array)) {
throw new Exception(self::getStatus(ZipArchive::ER_NOENT));
}
try {
if (is_array($file_name_or_array)) {
foreach ($file_name_or_array as $file_name) {
$this->deleteItem($file_name);
}
} else {
$this->deleteItem($file_name_or_array);
}
} catch (Exception $ze) {
throw $ze;
}
return $this;
}
/**
* Close the zip archive
*
* @return bool
*/
public function close() {
if ($this->zip_archive->close() === false) {
throw new Exception(self::getStatus($this->zip_archive->status));
}
return true;
}
/**
* Get a list of file contained in zip archive before extraction
*
* @return array
*/
private function getArchiveFiles() {
$list = array();
for ($i = 0; $i < $this->zip_archive->numFiles; $i++) {
$file = $this->zip_archive->statIndex($i);
if ($file === false) {
continue;
}
$name = str_replace('\\', '/', $file['name']);
if ($name[0] == "." AND in_array($this->skip_mode, array("HIDDEN", "ALL"))) {
continue;
}
if ($name[0] == "." AND @$name[1] == "_" AND in_array($this->skip_mode, array("ZANYSOFT", "ALL"))) {
continue;
}
array_push($list, $name);
}
return $list;
}
/**
* Add item to zip archive
*
* @param string $file File to add (realpath)
* @param bool $flatroot (optional) If true, source directory will be not included
* @param string $base (optional) Base to record in zip file
*
*/
private function addItem($file, $flatroot = false, $base = null) {
$file = (is_null($this->path) ? $file : $this->path . $file);
$real_file = str_replace('\\', '/', realpath($file));
$real_name = basename($real_file);
if (!is_null($base)) {
if ($real_name[0] == "." AND in_array($this->skip_mode, array("HIDDEN", "ALL"))) {
return;
}
if ($real_name[0] == "." AND @$real_name[1] == "_" AND in_array($this->skip_mode, array("ZANYSOFT", "ALL"))) {
return;
}
}
if (is_dir($real_file)) {
if (!$flatroot) {
$folder_target = (is_null($base) ? $real_name : $base . $real_name);
$new_folder = $this->zip_archive->addEmptyDir($folder_target);
if ($new_folder === false) {
throw new Exception(self::getStatus($this->zip_archive->status));
}
} else {
$folder_target = null;
}
foreach (new \DirectoryIterator($real_file) as $path) {
if ($path->isDot()) {
continue;
}
$file_real = $path->getPathname();
$base = (is_null($folder_target) ? null : ($folder_target . "/"));
try {
$this->addItem($file_real, false, $base);
} catch (Exception $ze) {
throw $ze;
}
}
} else if (is_file($real_file)) {
$file_target = (is_null($base) ? $real_name : $base . $real_name);
$add_file = $this->zip_archive->addFile($real_file, $file_target);
if ($add_file === false) {
throw new Exception(self::getStatus($this->zip_archive->status));
}
} else {
return;
}
}
/**
* Delete item from zip archive
*
* @param string $file File to delete (zippath)
*
*/
private function deleteItem($file) {
$deleted = $this->zip_archive->deleteName($file);
if ($deleted === false) {
throw new \Exception(self::getStatus($this->zip_archive->status));
}
}
/**
* Open a zip file
*
* @param string $zip_file ZIP status code
* @param int $flags ZIP status code
*
* @return \ZipArchive
*/
private static function openZipFile($zip_file, $flags = null) {
$zip = new ZipArchive();
$open = $zip->open($zip_file, $flags);
if ($open !== true) {
throw new \Exception(self::getStatus($open));
}
return $zip;
}
/**
* Get status from zip status code
*
* @param int $code ZIP status code
*
* @return string
*/
private static function getStatus($code) {
if (array_key_exists($code, self::$zip_status_codes)) {
return self::$zip_status_codes[$code];
} else {
return sprintf('Unknown status %s', $code);
}
}
}
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