server/lib/files/node/node.php

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<?php
/**
* Copyright (c) 2013 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\Node;
use OC\Files\Cache\Cache;
use OC\Files\Cache\Scanner;
use OC\Files\NotFoundException;
use OC\Files\NotPermittedException;
require_once 'files/exceptions.php';
class Node {
/**
* @var \OC\Files\View $view
*/
protected $view;
/**
* @var \OC\Files\Node\Root $root
*/
protected $root;
/**
* @var string $path
*/
protected $path;
/**
* @param \OC\Files\View $view
* @param \OC\Files\Node\Root Root $root
* @param string $path
*/
public function __construct($root, $view, $path) {
$this->view = $view;
$this->root = $root;
$this->path = $path;
}
/**
* @param string[] $hooks
*/
protected function sendHooks($hooks) {
foreach ($hooks as $hook) {
$this->root->emit('\OC\Files', $hook, array($this));
}
}
/**
* @param int $permissions
* @return bool
*/
protected function checkPermissions($permissions) {
return ($this->getPermissions() & $permissions) == $permissions;
}
/**
* @param string $targetPath
* @throws \OC\Files\NotPermittedException
* @return \OC\Files\Node\Node
*/
public function move($targetPath) {
return;
}
public function delete() {
return;
}
/**
* @param string $targetPath
* @return \OC\Files\Node\Node
*/
public function copy($targetPath) {
return;
}
/**
* @param int $mtime
* @throws \OC\Files\NotPermittedException
*/
public function touch($mtime = null) {
if ($this->checkPermissions(\OCP\PERMISSION_UPDATE)) {
$this->sendHooks(array('preTouch'));
$this->view->touch($this->path, $mtime);
$this->sendHooks(array('postTouch'));
} else {
throw new NotPermittedException();
}
}
/**
* @return \OC\Files\Storage\Storage
* @throws \OC\Files\NotFoundException
*/
public function getStorage() {
list($storage,) = $this->view->resolvePath($this->path);
return $storage;
}
/**
* @return string
*/
public function getPath() {
return $this->path;
}
/**
* @return string
*/
public function getInternalPath() {
list(, $internalPath) = $this->view->resolvePath($this->path);
return $internalPath;
}
/**
* @return int
*/
public function getId() {
$info = $this->view->getFileInfo($this->path);
return $info['fileid'];
}
/**
* @return array
*/
public function stat() {
return $this->view->stat($this->path);
}
/**
* @return int
*/
public function getMTime() {
return $this->view->filemtime($this->path);
}
/**
* @return int
*/
public function getSize() {
return $this->view->filesize($this->path);
}
/**
* @return string
*/
public function getEtag() {
$info = $this->view->getFileInfo($this->path);
return $info['etag'];
}
/**
* @return int
*/
public function getPermissions() {
$info = $this->view->getFileInfo($this->path);
return $info['permissions'];
}
/**
* @return bool
*/
public function isReadable() {
return $this->checkPermissions(\OCP\PERMISSION_READ);
}
/**
* @return bool
*/
public function isUpdateable() {
return $this->checkPermissions(\OCP\PERMISSION_UPDATE);
}
/**
* @return bool
*/
public function isDeletable() {
return $this->checkPermissions(\OCP\PERMISSION_DELETE);
}
/**
* @return bool
*/
public function isShareable() {
return $this->checkPermissions(\OCP\PERMISSION_SHARE);
}
/**
* @return Node
*/
public function getParent() {
return $this->root->get(dirname($this->path));
}
/**
* @return string
*/
public function getName() {
return basename($this->path);
}
/**
* @param string $path
* @return string
*/
protected function normalizePath($path) {
if ($path === '' or $path === '/') {
return '/';
}
//no windows style slashes
$path = str_replace('\\', '/', $path);
//add leading slash
if ($path[0] !== '/') {
$path = '/' . $path;
}
//remove duplicate slashes
while (strpos($path, '//') !== false) {
$path = str_replace('//', '/', $path);
}
//remove trailing slash
$path = rtrim($path, '/');
return $path;
}
/**
* check if the requested path is valid
*
* @param string $path
* @return bool
*/
public function isValidPath($path) {
if (!$path || $path[0] !== '/') {
$path = '/' . $path;
}
if (strstr($path, '/../') || strrchr($path, '/') === '/..') {
return false;
}
return true;
}
}