server/lib/files/storage/storage.php
2013-03-23 00:10:30 +01:00

338 lines
7 KiB
PHP

<?php
/**
* Copyright (c) 2012 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;
/**
* Provide a common interface to all different storage options
*
* All paths passed to the storage are relative to the storage and should NOT have a leading slash.
*/
interface Storage {
/**
* $parameters is a free form array with the configuration options needed to construct the storage
*
* @param array $parameters
*/
public function __construct($parameters);
/**
* Get the identifier for the storage,
* the returned id should be the same for every storage object that is created with the same parameters
* and two storage objects with the same id should refer to two storages that display the same files.
*
* @return string
*/
public function getId();
/**
* see http://php.net/manual/en/function.mkdir.php
*
* @param string $path
* @return bool
*/
public function mkdir($path);
/**
* see http://php.net/manual/en/function.rmdir.php
*
* @param string $path
* @return bool
*/
public function rmdir($path);
/**
* see http://php.net/manual/en/function.opendir.php
*
* @param string $path
* @return resource
*/
public function opendir($path);
/**
* see http://php.net/manual/en/function.is_dir.php
*
* @param string $path
* @return bool
*/
public function is_dir($path);
/**
* see http://php.net/manual/en/function.is_file.php
*
* @param string $path
* @return bool
*/
public function is_file($path);
/**
* see http://php.net/manual/en/function.stat.php
* only the following keys are required in the result: size and mtime
*
* @param string $path
* @return array
*/
public function stat($path);
/**
* see http://php.net/manual/en/function.filetype.php
*
* @param string $path
* @return bool
*/
public function filetype($path);
/**
* see http://php.net/manual/en/function.filesize.php
* The result for filesize when called on a folder is required to be 0
*
* @param string $path
* @return int
*/
public function filesize($path);
/**
* check if a file can be created in $path
*
* @param string $path
* @return bool
*/
public function isCreatable($path);
/**
* check if a file can be read
*
* @param string $path
* @return bool
*/
public function isReadable($path);
/**
* check if a file can be written to
*
* @param string $path
* @return bool
*/
public function isUpdatable($path);
/**
* check if a file can be deleted
*
* @param string $path
* @return bool
*/
public function isDeletable($path);
/**
* check if a file can be shared
*
* @param string $path
* @return bool
*/
public function isSharable($path);
/**
* get the full permissions of a path.
* Should return a combination of the PERMISSION_ constants defined in lib/public/constants.php
*
* @param string $path
* @return int
*/
public function getPermissions($path);
/**
* see http://php.net/manual/en/function.file_exists.php
*
* @param string $path
* @return bool
*/
public function file_exists($path);
/**
* see http://php.net/manual/en/function.filemtime.php
*
* @param string $path
* @return int
*/
public function filemtime($path);
/**
* see http://php.net/manual/en/function.file_get_contents.php
*
* @param string $path
* @return string
*/
public function file_get_contents($path);
/**
* see http://php.net/manual/en/function.file_put_contents.php
*
* @param string $path
* @param string $data
* @return bool
*/
public function file_put_contents($path, $data);
/**
* see http://php.net/manual/en/function.unlink.php
*
* @param string $path
* @return bool
*/
public function unlink($path);
/**
* see http://php.net/manual/en/function.rename.php
*
* @param string $path1
* @param string $path2
* @return bool
*/
public function rename($path1, $path2);
/**
* see http://php.net/manual/en/function.copy.php
*
* @param string $path1
* @param string $path2
* @return bool
*/
public function copy($path1, $path2);
/**
* see http://php.net/manual/en/function.fopen.php
*
* @param string $path
* @param string $mode
* @return resource
*/
public function fopen($path, $mode);
/**
* get the mimetype for a file or folder
* The mimetype for a folder is required to be "httpd/unix-directory"
*
* @param string $path
* @return string
*/
public function getMimeType($path);
/**
* see http://php.net/manual/en/function.hash.php
*
* @param string $type
* @param string $path
* @param bool $raw
* @return string
*/
public function hash($type, $path, $raw = false);
/**
* see http://php.net/manual/en/function.free_space.php
*
* @param string $path
* @return int
*/
public function free_space($path);
/**
* search for occurrences of $query in file names
*
* @param string $query
* @return array
*/
public function search($query);
/**
* see http://php.net/manual/en/function.touch.php
* If the backend does not support the operation, false should be returned
*
* @param string $path
* @param int $mtime
* @return bool
*/
public function touch($path, $mtime = null);
/**
* get the path to a local version of the file.
* The local version of the file can be temporary and doesn't have to be persistent across requests
*
* @param string $path
* @return string
*/
public function getLocalFile($path);
/**
* get the path to a local version of the folder.
* The local version of the folder can be temporary and doesn't have to be persistent across requests
*
* @param string $path
* @return string
*/
public function getLocalFolder($path);
/**
* check if a file or folder has been updated since $time
*
* @param string $path
* @param int $time
* @return bool
*
* hasUpdated for folders should return at least true if a file inside the folder is add, removed or renamed.
* returning true for other changes in the folder is optional
*/
public function hasUpdated($path, $time);
/**
* get a cache instance for the storage
*
* @param string $path
* @return \OC\Files\Cache\Cache
*/
public function getCache($path = '');
/**
* get a scanner instance for the storage
*
* @param string $path
* @return \OC\Files\Cache\Scanner
*/
public function getScanner($path = '');
/**
* get the user id of the owner of a file or folder
*
* @param string $path
* @return string
*/
public function getOwner($path);
/**
* get a permissions cache instance for the cache
*
* @param string $path
* @return \OC\Files\Cache\Permissions
*/
public function getPermissionsCache($path = '');
/**
* get a watcher instance for the cache
*
* @param string $path
* @return \OC\Files\Cache\Watcher
*/
public function getWatcher($path = '');
/**
* get the ETag for a file or folder
*
* @param string $path
* @return string
*/
public function getETag($path);
}