nextcloud/lib/filestorage.php

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<?php
/**
* ownCloud
*
* @author Frank Karlitschek
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* @copyright 2012 Frank Karlitschek frank@owncloud.org
*
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* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
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* version 3 of the License, or any later version.
*
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* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
*
* You should have received a copy of the GNU Affero General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/**
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* Provde a common interface to all different storage options
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*/
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abstract class OC_Filestorage{
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abstract public function __construct($parameters);
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abstract public function mkdir($path);
abstract public function rmdir($path);
abstract public function opendir($path);
abstract public function is_dir($path);
abstract public function is_file($path);
abstract public function stat($path);
abstract public function filetype($path);
abstract public function filesize($path);
abstract public function is_readable($path);
abstract public function is_writable($path);
abstract public function file_exists($path);
abstract public function filectime($path);
abstract public function filemtime($path);
abstract public function file_get_contents($path);
abstract public function file_put_contents($path,$data);
abstract public function unlink($path);
abstract public function rename($path1,$path2);
abstract public function copy($path1,$path2);
abstract public function fopen($path,$mode);
abstract public function getMimeType($path);
abstract public function hash($type,$path,$raw = false);
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abstract public function free_space($path);
abstract public function search($query);
abstract public function touch($path, $mtime=null);
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abstract public function getLocalFile($path);// get a path to a local version of the file, whether the original file is local or remote
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/**
* check if a file or folder has been updated since $time
* @param int $time
* @return bool
*
* hasUpdated for folders should return at least true if a file inside the folder is add, removed or renamed.
* returning true for other changes in the folder is optional
*/
abstract public function hasUpdated($path,$time);
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}