nextcloud/lib/public/Files/Node.php

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<?php
/**
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* @author Bernhard Posselt <dev@bernhard-posselt.com>
* @author Joas Schilling <nickvergessen@owncloud.com>
* @author Jörn Friedrich Dreyer <jfd@butonic.de>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin Appelman <icewind@owncloud.com>
*
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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* @license AGPL-3.0
*
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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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* This program is distributed in the hope that it will be useful,
* 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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* 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/>
*
*/
/**
* Public interface of ownCloud for apps to use.
* Files/Node interface
*/
// use OCP namespace for all classes that are considered public.
// This means that they should be used by apps instead of the internal ownCloud classes
namespace OCP\Files;
/**
* Interface Node
*
* @package OCP\Files
* @since 6.0.0 - extends FileInfo was added in 8.0.0
*/
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interface Node extends FileInfo {
/**
* Move the file or folder to a new location
*
* @param string $targetPath the absolute target path
* @throws \OCP\Files\NotPermittedException
* @return \OCP\Files\Node
* @since 6.0.0
*/
public function move($targetPath);
/**
* Delete the file or folder
* @return void
* @since 6.0.0
*/
public function delete();
/**
* Cope the file or folder to a new location
*
* @param string $targetPath the absolute target path
* @return \OCP\Files\Node
* @since 6.0.0
*/
public function copy($targetPath);
/**
* Change the modified date of the file or folder
* If $mtime is omitted the current time will be used
*
* @param int $mtime (optional) modified date as unix timestamp
* @throws \OCP\Files\NotPermittedException
* @return void
* @since 6.0.0
*/
public function touch($mtime = null);
/**
* Get the storage backend the file or folder is stored on
*
* @return \OCP\Files\Storage
* @throws \OCP\Files\NotFoundException
* @since 6.0.0
*/
public function getStorage();
/**
* Get the full path of the file or folder
*
* @return string
* @since 6.0.0
*/
public function getPath();
/**
* Get the path of the file or folder relative to the mountpoint of it's storage
*
* @return string
* @since 6.0.0
*/
public function getInternalPath();
/**
* Get the internal file id for the file or folder
*
* @return int
* @throws InvalidPathException
* @throws NotFoundException
* @since 6.0.0
*/
public function getId();
/**
* Get metadata of the file or folder
* The returned array contains the following values:
* - mtime
* - size
*
* @return array
* @since 6.0.0
*/
public function stat();
/**
* Get the modified date of the file or folder as unix timestamp
*
* @return int
* @throws InvalidPathException
* @throws NotFoundException
* @since 6.0.0
*/
public function getMTime();
/**
* Get the size of the file or folder in bytes
*
* @return int
* @throws InvalidPathException
* @throws NotFoundException
* @since 6.0.0
*/
public function getSize();
/**
* Get the Etag of the file or folder
* The Etag is an string id used to detect changes to a file or folder,
* every time the file or folder is changed the Etag will change to
*
* @return string
* @throws InvalidPathException
* @throws NotFoundException
* @since 6.0.0
*/
public function getEtag();
/**
* Get the permissions of the file or folder as a combination of one or more of the following constants:
* - \OCP\Constants::PERMISSION_READ
* - \OCP\Constants::PERMISSION_UPDATE
* - \OCP\Constants::PERMISSION_CREATE
* - \OCP\Constants::PERMISSION_DELETE
* - \OCP\Constants::PERMISSION_SHARE
*
* @return int
* @throws InvalidPathException
* @throws NotFoundException
* @since 6.0.0 - namespace of constants has changed in 8.0.0
*/
public function getPermissions();
/**
* Check if the file or folder is readable
*
* @return bool
* @throws InvalidPathException
* @throws NotFoundException
* @since 6.0.0
*/
public function isReadable();
/**
* Check if the file or folder is writable
*
* @return bool
* @throws InvalidPathException
* @throws NotFoundException
* @since 6.0.0
*/
public function isUpdateable();
/**
* Check if the file or folder is deletable
*
* @return bool
* @throws InvalidPathException
* @throws NotFoundException
* @since 6.0.0
*/
public function isDeletable();
/**
* Check if the file or folder is shareable
*
* @return bool
* @throws InvalidPathException
* @throws NotFoundException
* @since 6.0.0
*/
public function isShareable();
/**
* Get the parent folder of the file or folder
*
* @return Folder
* @since 6.0.0
*/
public function getParent();
/**
* Get the filename of the file or folder
*
* @return string
* @since 6.0.0
*/
public function getName();
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/**
* Acquire a lock on this file or folder.
*
* A shared (read) lock will prevent any exclusive (write) locks from being created but any number of shared locks
* can be active at the same time.
* An exclusive lock will prevent any other lock from being created (both shared and exclusive).
*
* A locked exception will be thrown if any conflicting lock already exists
*
* Note that this uses mandatory locking, if you acquire an exclusive lock on a file it will block *all*
* other operations for that file, even within the same php process.
*
* Acquiring any lock on a file will also create a shared lock on all parent folders of that file.
*
* Note that in most cases you won't need to manually manage the locks for any files you're working with,
* any filesystem operation will automatically acquire the relevant locks for that operation.
*
* @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
* @throws \OCP\Lock\LockedException
* @since 9.1.0
*/
public function lock($type);
/**
* Check the type of an existing lock.
*
* A shared lock can be changed to an exclusive lock is there is exactly one shared lock on the file,
* an exclusive lock can always be changed to a shared lock since there can only be one exclusive lock int he first place.
*
* A locked exception will be thrown when these preconditions are not met.
* Note that this is also the case if no existing lock exists for the file.
*
* @param int $targetType \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
* @throws \OCP\Lock\LockedException
* @since 9.1.0
*/
public function changeLock($targetType);
/**
* Release an existing lock.
*
* This will also free up the shared locks on any parent folder that were automatically acquired when locking the file.
*
* Note that this method will not give any sort of error when trying to free a lock that doesn't exist.
*
* @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
* @throws \OCP\Lock\LockedException
* @since 9.1.0
*/
public function unlock($type);
}