server/lib/private/files/storage/wrapper/permissionsmask.php

102 lines
2.9 KiB
PHP

<?php
/**
* Copyright (c) 2014 Robin Appelman <icewind@owncloud.com>
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
namespace OC\Files\Storage\Wrapper;
use OC\Files\Cache\Wrapper\CachePermissionsMask;
/**
* Mask the permissions of a storage
*
* Note that the read permissions cant be masked
*/
class PermissionsMask extends Wrapper {
/**
* @var int
*/
private $mask;
public function __construct($arguments) {
parent::__construct($arguments);
$this->mask = $arguments['mask'];
}
private function checkMask($permissions) {
return ($this->mask & $permissions) === $permissions;
}
public function isUpdatable($path) {
return $this->checkMask(\OCP\PERMISSION_UPDATE) and parent::isUpdatable($path);
}
public function isCreatable($path) {
return $this->checkMask(\OCP\PERMISSION_CREATE) and parent::isCreatable($path);
}
public function isDeletable($path) {
return $this->checkMask(\OCP\PERMISSION_DELETE) and parent::isDeletable($path);
}
public function getPermissions($path) {
return $this->storage->getPermissions($path) & $this->mask;
}
public function rename($path1, $path2) {
return $this->checkMask(\OCP\PERMISSION_UPDATE) and parent::rename($path1, $path2);
}
public function copy($path1, $path2) {
return $this->checkMask(\OCP\PERMISSION_CREATE) and parent::copy($path1, $path2);
}
public function touch($path, $mtime = null) {
$permissions = $this->file_exists($path) ? \OCP\PERMISSION_UPDATE : \OCP\PERMISSION_CREATE;
return $this->checkMask($permissions) and parent::touch($path, $mtime);
}
public function mkdir($path) {
return $this->checkMask(\OCP\PERMISSION_CREATE) and parent::mkdir($path);
}
public function rmdir($path) {
return $this->checkMask(\OCP\PERMISSION_DELETE) and parent::rmdir($path);
}
public function unlink($path) {
return $this->checkMask(\OCP\PERMISSION_DELETE) and parent::unlink($path);
}
public function file_put_contents($path, $data) {
$permissions = $this->file_exists($path) ? \OCP\PERMISSION_UPDATE : \OCP\PERMISSION_CREATE;
return $this->checkMask($permissions) and parent::file_put_contents($path, $data);
}
public function fopen($path, $mode) {
if ($mode === 'r' or $mode === 'rb') {
return parent::fopen($path, $mode);
} else {
$permissions = $this->file_exists($path) ? \OCP\PERMISSION_UPDATE : \OCP\PERMISSION_CREATE;
return $this->checkMask($permissions) ? parent::fopen($path, $mode) : false;
}
}
/**
* get a cache instance for the storage
*
* @param string $path
* @param \OC\Files\Storage\Storage (optional) the storage to pass to the cache
* @return \OC\Files\Cache\Cache
*/
public function getCache($path = '', $storage = null) {
if (!$storage) {
$storage = $this;
}
$sourceCache = parent::getCache($path, $storage);
return new CachePermissionsMask($sourceCache, $this->mask);
}
}