2012-11-09 00:12:40 +04:00
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<?php
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/**
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2015-03-26 13:44:34 +03:00
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* @author Björn Schießle <schiessle@owncloud.com>
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2015-10-26 15:54:55 +03:00
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* @author Jörn Friedrich Dreyer <jfd@butonic.de>
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2015-03-26 13:44:34 +03:00
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* @author Michael Gapczynski <GapczynskiM@gmail.com>
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author Robin Appelman <icewind@owncloud.com>
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* @author Vincent Petry <pvince81@owncloud.com>
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*
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* @copyright Copyright (c) 2015, ownCloud, Inc.
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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
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* it under the terms of the GNU Affero General Public License, version 3,
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* 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
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* 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,
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*
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2012-11-09 00:12:40 +04:00
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*/
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2015-02-26 13:37:37 +03:00
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2012-11-09 00:12:40 +04:00
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namespace OC\Files\Cache;
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2013-10-29 17:18:57 +04:00
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2012-11-09 00:12:40 +04:00
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/**
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2014-08-04 16:29:46 +04:00
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* Update the cache and propagate changes
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2015-05-05 17:06:28 +03:00
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*
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* Unlike most other classes an Updater is not related to a specific storage but handles updates for all storages in a users filesystem.
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* This is needed because the propagation of mtime and etags need to cross storage boundaries
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2012-11-09 00:12:40 +04:00
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*/
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class Updater {
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2015-02-27 16:14:42 +03:00
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/**
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* @var bool
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*/
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protected $enabled = true;
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2014-08-04 16:29:46 +04:00
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/**
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* @var \OC\Files\View
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*/
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protected $view;
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2012-11-09 00:12:40 +04:00
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/**
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2014-08-04 16:29:46 +04:00
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* @var \OC\Files\Cache\ChangePropagator
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*/
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protected $propagator;
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/**
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2015-05-05 17:06:28 +03:00
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* @param \OC\Files\View $view the view the updater works on, usually the view of the logged in user
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2012-11-09 00:12:40 +04:00
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*/
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2014-08-04 16:29:46 +04:00
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public function __construct($view) {
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$this->view = $view;
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$this->propagator = new ChangePropagator($view);
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2012-11-09 00:12:40 +04:00
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}
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2015-05-05 17:06:28 +03:00
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/**
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* Disable updating the cache trough this updater
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*/
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2015-02-27 16:14:42 +03:00
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public function disable() {
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$this->enabled = false;
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}
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2015-05-05 17:06:28 +03:00
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/**
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* Re-enable the updating of the cache trough this updater
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*/
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2015-02-27 16:14:42 +03:00
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public function enable() {
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$this->enabled = true;
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}
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2015-05-05 17:06:28 +03:00
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/**
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* Get the propagator for etags and mtime for the view the updater works on
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*
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* @return ChangePropagator
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*/
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2015-03-09 18:15:06 +03:00
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public function getPropagator() {
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return $this->propagator;
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}
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2015-05-05 17:06:28 +03:00
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/**
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* Propagate etag and mtime changes for the parent folders of $path up to the root of the filesystem
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*
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* @param string $path the path of the file to propagate the changes for
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* @param int|null $time the timestamp to set as mtime for the parent folders, if left out the current time is used
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*/
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2014-10-14 19:15:46 +04:00
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public function propagate($path, $time = null) {
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2015-02-02 19:35:40 +03:00
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if (Scanner::isPartialFile($path)) {
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return;
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}
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2014-10-14 19:15:46 +04:00
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$this->propagator->addChange($path);
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$this->propagator->propagateChanges($time);
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}
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2013-03-24 05:06:50 +04:00
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/**
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2015-05-05 17:06:28 +03:00
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* Update the cache for $path and update the size, etag and mtime of the parent folders
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2013-03-24 05:06:50 +04:00
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*
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2014-08-04 16:29:46 +04:00
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* @param string $path
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2014-08-12 15:59:06 +04:00
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* @param int $time
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2013-03-24 05:06:50 +04:00
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*/
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2014-08-12 15:59:06 +04:00
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public function update($path, $time = null) {
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2015-02-27 16:14:42 +03:00
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if (!$this->enabled or Scanner::isPartialFile($path)) {
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2015-02-02 19:35:40 +03:00
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return;
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}
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2012-11-09 00:12:40 +04:00
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/**
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* @var \OC\Files\Storage\Storage $storage
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* @var string $internalPath
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*/
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2014-08-04 16:29:46 +04:00
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list($storage, $internalPath) = $this->view->resolvePath($path);
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2012-12-31 05:27:38 +04:00
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if ($storage) {
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2014-08-04 16:29:46 +04:00
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$this->propagator->addChange($path);
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2013-01-01 23:19:53 +04:00
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$cache = $storage->getCache($internalPath);
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$scanner = $storage->getScanner($internalPath);
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2015-06-18 14:47:03 +03:00
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$data = $scanner->scan($internalPath, Scanner::SCAN_SHALLOW, -1, false);
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2014-08-04 16:29:46 +04:00
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$this->correctParentStorageMtime($storage, $internalPath);
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2014-02-28 17:23:07 +04:00
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$cache->correctFolderSize($internalPath, $data);
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2014-08-12 15:59:06 +04:00
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$this->propagator->propagateChanges($time);
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2012-12-31 05:27:38 +04:00
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}
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2012-11-09 00:12:40 +04:00
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}
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2013-03-24 05:06:50 +04:00
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/**
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2015-05-05 17:06:28 +03:00
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* Remove $path from the cache and update the size, etag and mtime of the parent folders
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2013-03-24 05:06:50 +04:00
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*
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2014-08-04 16:29:46 +04:00
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* @param string $path
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2013-03-24 05:06:50 +04:00
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*/
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2014-08-04 16:29:46 +04:00
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public function remove($path) {
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2015-02-27 16:14:42 +03:00
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if (!$this->enabled or Scanner::isPartialFile($path)) {
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2015-02-02 19:35:40 +03:00
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return;
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}
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2012-11-09 00:12:40 +04:00
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/**
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* @var \OC\Files\Storage\Storage $storage
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* @var string $internalPath
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*/
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2014-08-04 16:29:46 +04:00
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list($storage, $internalPath) = $this->view->resolvePath($path);
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2012-12-31 05:27:38 +04:00
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if ($storage) {
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2013-11-28 16:17:19 +04:00
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$parent = dirname($internalPath);
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if ($parent === '.') {
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$parent = '';
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}
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2014-08-04 16:29:46 +04:00
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$this->propagator->addChange($path);
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2013-01-01 23:19:53 +04:00
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$cache = $storage->getCache($internalPath);
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2012-12-31 05:27:38 +04:00
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$cache->remove($internalPath);
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2013-11-28 16:17:19 +04:00
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$cache->correctFolderSize($parent);
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2014-08-04 16:29:46 +04:00
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$this->correctParentStorageMtime($storage, $internalPath);
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2014-08-12 15:59:06 +04:00
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$this->propagator->propagateChanges();
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2012-12-31 06:26:48 +04:00
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}
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2012-12-31 04:54:51 +04:00
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}
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2013-03-24 05:06:50 +04:00
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/**
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2015-05-05 17:06:28 +03:00
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* Rename a file or folder in the cache and update the size, etag and mtime of the parent folders
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*
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2014-08-04 16:29:46 +04:00
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* @param string $source
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* @param string $target
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2013-03-24 05:06:50 +04:00
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*/
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2014-08-04 16:29:46 +04:00
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public function rename($source, $target) {
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2015-02-27 16:14:42 +03:00
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if (!$this->enabled or Scanner::isPartialFile($source) or Scanner::isPartialFile($target)) {
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2015-02-02 19:35:40 +03:00
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return;
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}
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2013-03-08 22:08:07 +04:00
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/**
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2014-08-04 16:29:46 +04:00
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* @var \OC\Files\Storage\Storage $sourceStorage
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* @var \OC\Files\Storage\Storage $targetStorage
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* @var string $sourceInternalPath
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* @var string $targetInternalPath
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2013-03-08 22:08:07 +04:00
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*/
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2014-08-04 16:29:46 +04:00
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list($sourceStorage, $sourceInternalPath) = $this->view->resolvePath($source);
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2014-05-22 03:40:04 +04:00
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// if it's a moved mountpoint we dont need to do anything
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2014-08-04 16:29:46 +04:00
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if ($sourceInternalPath === '') {
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2014-05-22 03:40:04 +04:00
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return;
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}
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2014-08-04 16:29:46 +04:00
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list($targetStorage, $targetInternalPath) = $this->view->resolvePath($target);
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if ($sourceStorage && $targetStorage) {
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2015-04-01 16:12:59 +03:00
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$targetCache = $targetStorage->getCache($sourceInternalPath);
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2015-07-14 16:12:27 +03:00
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if ($sourceStorage->getCache($sourceInternalPath)->inCache($sourceInternalPath)) {
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if ($targetCache->inCache($targetInternalPath)) {
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$targetCache->remove($targetInternalPath);
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}
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if ($sourceStorage === $targetStorage) {
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$targetCache->move($sourceInternalPath, $targetInternalPath);
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} else {
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$targetCache->moveFromCache($sourceStorage->getCache(), $sourceInternalPath, $targetInternalPath);
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}
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2015-04-01 16:12:59 +03:00
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}
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if (pathinfo($sourceInternalPath, PATHINFO_EXTENSION) !== pathinfo($targetInternalPath, PATHINFO_EXTENSION)) {
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// handle mime type change
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2015-05-21 11:57:58 +03:00
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$mimeType = $targetStorage->getMimeType($targetInternalPath);
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2015-04-01 16:12:59 +03:00
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$fileId = $targetCache->getId($targetInternalPath);
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$targetCache->update($fileId, array('mimetype' => $mimeType));
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2014-03-03 15:56:08 +04:00
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}
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2015-04-01 16:12:59 +03:00
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$targetCache->correctFolderSize($sourceInternalPath);
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$targetCache->correctFolderSize($targetInternalPath);
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$this->correctParentStorageMtime($sourceStorage, $sourceInternalPath);
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$this->correctParentStorageMtime($targetStorage, $targetInternalPath);
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$this->propagator->addChange($source);
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$this->propagator->addChange($target);
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2014-08-12 15:59:06 +04:00
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$this->propagator->propagateChanges();
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2013-10-29 18:08:12 +04:00
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}
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}
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2013-10-29 17:18:57 +04:00
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/**
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2015-05-05 17:06:28 +03:00
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* update the storage_mtime of the direct parent in the cache to the mtime from the storage
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2013-10-29 17:18:57 +04:00
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*
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* @param \OC\Files\Storage\Storage $storage
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* @param string $internalPath
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*/
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2014-08-04 16:29:46 +04:00
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private function correctParentStorageMtime($storage, $internalPath) {
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2013-10-29 17:18:57 +04:00
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$cache = $storage->getCache();
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$parentId = $cache->getParentId($internalPath);
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$parent = dirname($internalPath);
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if ($parentId != -1) {
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$cache->update($parentId, array('storage_mtime' => $storage->filemtime($parent)));
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}
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}
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2014-08-04 16:29:46 +04:00
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public function __destruct() {
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// propagate any leftover changes
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$this->propagator->propagateChanges();
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2012-11-09 00:12:40 +04:00
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}
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}
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