nextcloud/apps/dav/lib/Connector/Sabre/Node.php

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<?php
/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
*
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* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
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* @author Bart Visscher <bartv@thisnet.nl>
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* @author Björn Schießle <bjoern@schiessle.org>
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* @author Jakob Sack <mail@jakobsack.de>
* @author Jörn Friedrich Dreyer <jfd@butonic.de>
* @author Klaas Freitag <freitag@owncloud.com>
* @author Markus Goetz <markus@woboq.com>
* @author Morris Jobke <hey@morrisjobke.de>
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* @author Robin Appelman <robin@icewind.nl>
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* @author Roeland Jago Douma <roeland@famdouma.nl>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
* @author Vincent Petry <pvince81@owncloud.com>
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*
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* @license AGPL-3.0
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*
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* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
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*
*/
namespace OCA\DAV\Connector\Sabre;
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use OC\Files\Mount\MoveableMount;
use OCA\DAV\Connector\Sabre\Exception\InvalidPath;
use OCP\Share\Exceptions\ShareNotFound;
use OCP\Share\IManager;
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abstract class Node implements \Sabre\DAV\INode {
/**
* @var \OC\Files\View
*/
protected $fileView;
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/**
* The path to the current node
*
* @var string
*/
protected $path;
/**
* node properties cache
*
* @var array
*/
protected $property_cache = null;
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/**
* @var \OCP\Files\FileInfo
*/
protected $info;
/**
* @var IManager
*/
protected $shareManager;
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/**
* Sets up the node, expects a full path name
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*
* @param \OC\Files\View $view
* @param \OCP\Files\FileInfo $info
* @param IManager $shareManager
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*/
public function __construct($view, $info, IManager $shareManager = null) {
$this->fileView = $view;
$this->path = $this->fileView->getRelativePath($info->getPath());
$this->info = $info;
if ($shareManager) {
$this->shareManager = $shareManager;
} else {
$this->shareManager = \OC::$server->getShareManager();
}
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}
protected function refreshInfo() {
$this->info = $this->fileView->getFileInfo($this->path);
}
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/**
* Returns the name of the node
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*
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* @return string
*/
public function getName() {
return $this->info->getName();
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}
/**
* Returns the full path
*
* @return string
*/
public function getPath() {
return $this->path;
}
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/**
* Renames the node
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*
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* @param string $name The new name
* @throws \Sabre\DAV\Exception\BadRequest
* @throws \Sabre\DAV\Exception\Forbidden
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*/
public function setName($name) {
// rename is only allowed if the update privilege is granted
if (!$this->info->isUpdateable()) {
throw new \Sabre\DAV\Exception\Forbidden();
}
list($parentPath,) = \Sabre\HTTP\URLUtil::splitPath($this->path);
list(, $newName) = \Sabre\HTTP\URLUtil::splitPath($name);
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// verify path of the target
$this->verifyPath();
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$newPath = $parentPath . '/' . $newName;
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$this->fileView->rename($this->path, $newPath);
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$this->path = $newPath;
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$this->refreshInfo();
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}
public function setPropertyCache($property_cache) {
$this->property_cache = $property_cache;
}
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/**
* Returns the last modification time, as a unix timestamp
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*
* @return int timestamp as integer
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*/
public function getLastModified() {
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$timestamp = $this->info->getMtime();
if (!empty($timestamp)) {
return (int)$timestamp;
}
return $timestamp;
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}
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/**
* sets the last modification time of the file (mtime) to the value given
* in the second parameter or to now if the second param is empty.
* Even if the modification time is set to a custom value the access time is set to now.
*/
public function touch($mtime) {
$this->fileView->touch($this->path, $mtime);
$this->refreshInfo();
}
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/**
* Returns the ETag for a file
*
* An ETag is a unique identifier representing the current version of the
* file. If the file changes, the ETag MUST change. The ETag is an
* arbitrary string, but MUST be surrounded by double-quotes.
*
* Return null if the ETag can not effectively be determined
*
* @return string
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*/
public function getETag() {
return '"' . $this->info->getEtag() . '"';
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}
/**
* Sets the ETag
*
* @param string $etag
*
* @return int file id of updated file or -1 on failure
*/
public function setETag($etag) {
return $this->fileView->putFileInfo($this->path, array('etag' => $etag));
}
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/**
* Returns the size of the node, in bytes
*
* @return integer
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*/
public function getSize() {
return $this->info->getSize();
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}
/**
* Returns the cache's file id
*
* @return int
*/
public function getId() {
return $this->info->getId();
}
/**
* @return string|null
*/
public function getFileId() {
if ($this->info->getId()) {
$instanceId = \OC_Util::getInstanceId();
$id = sprintf('%08d', $this->info->getId());
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return $id . $instanceId;
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}
return null;
}
/**
* @return integer
*/
public function getInternalFileId() {
return $this->info->getId();
}
/**
* @param string $user
* @return int
*/
public function getSharePermissions($user) {
// check of we access a federated share
if ($user !== null) {
try {
$share = $this->shareManager->getShareByToken($user);
return $share->getPermissions();
} catch (ShareNotFound $e) {
// ignore
}
}
$storage = $this->info->getStorage();
$path = $this->info->getInternalPath();
if ($storage->instanceOfStorage('\OCA\Files_Sharing\SharedStorage')) {
/** @var \OCA\Files_Sharing\SharedStorage $storage */
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$permissions = (int)$storage->getShare()->getPermissions();
} else {
$permissions = $storage->getPermissions($path);
}
/*
* We can always share non moveable mount points with DELETE and UPDATE
* Eventually we need to do this properly
*/
$mountpoint = $this->info->getMountPoint();
if (!($mountpoint instanceof MoveableMount)) {
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$mountpointpath = $mountpoint->getMountPoint();
if (substr($mountpointpath, -1) === '/') {
$mountpointpath = substr($mountpointpath, 0, -1);
}
if ($mountpointpath === $this->info->getPath()) {
$permissions |= \OCP\Constants::PERMISSION_DELETE | \OCP\Constants::PERMISSION_UPDATE;
}
}
/*
* Files can't have create or delete permissions
*/
if ($this->info->getType() === \OCP\Files\FileInfo::TYPE_FILE) {
$permissions &= ~(\OCP\Constants::PERMISSION_CREATE | \OCP\Constants::PERMISSION_DELETE);
}
return $permissions;
}
/**
* @return string
*/
public function getDavPermissions() {
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$p = '';
if ($this->info->isShared()) {
$p .= 'S';
}
if ($this->info->isShareable()) {
$p .= 'R';
}
if ($this->info->isMounted()) {
$p .= 'M';
}
if ($this->info->isDeletable()) {
$p .= 'D';
}
if ($this->info->isUpdateable()) {
$p .= 'NV'; // Renameable, Moveable
}
if ($this->info->getType() === \OCP\Files\FileInfo::TYPE_FILE) {
if ($this->info->isUpdateable()) {
$p .= 'W';
}
} else {
if ($this->info->isCreatable()) {
$p .= 'CK';
}
}
return $p;
}
public function getOwner() {
return $this->info->getOwner();
}
protected function verifyPath() {
try {
$fileName = basename($this->info->getPath());
$this->fileView->verifyPath($this->path, $fileName);
} catch (\OCP\Files\InvalidPathException $ex) {
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throw new InvalidPath($ex->getMessage());
}
}
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/**
* @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
*/
public function acquireLock($type) {
$this->fileView->lockFile($this->path, $type);
}
/**
* @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
*/
public function releaseLock($type) {
$this->fileView->unlockFile($this->path, $type);
}
/**
* @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
*/
public function changeLock($type) {
$this->fileView->changeLock($this->path, $type);
}
public function getFileInfo() {
return $this->info;
}
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}