125 lines
3.1 KiB
PHP
125 lines
3.1 KiB
PHP
<?php
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/**
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author Robin Appelman <icewind@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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*/
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namespace OC\Files\Cache;
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use OC\Files\Filesystem;
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use OC\Hooks\BasicEmitter;
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/**
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* Propagates changes in etag and mtime up the filesystem tree
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*
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* @package OC\Files\Cache
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*/
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class ChangePropagator extends BasicEmitter {
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/**
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* @var string[]
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*/
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protected $changedFiles = array();
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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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/**
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* @param \OC\Files\View $view
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*/
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public function __construct(\OC\Files\View $view) {
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$this->view = $view;
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}
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public function addChange($path) {
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$this->changedFiles[] = $path;
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}
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public function getChanges() {
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return $this->changedFiles;
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}
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/**
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* propagate the registered changes to their parent folders
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*
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* @param int $time (optional) the mtime to set for the folders, if not set the current time is used
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*/
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public function propagateChanges($time = null) {
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$changes = $this->getChanges();
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$this->changedFiles = [];
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if (!$time) {
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$time = time();
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}
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foreach ($changes as $change) {
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/**
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* @var \OC\Files\Storage\Storage $storage
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* @var string $internalPath
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*/
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$absolutePath = $this->view->getAbsolutePath($change);
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$mount = $this->view->getMount($change);
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$storage = $mount->getStorage();
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$internalPath = $mount->getInternalPath($absolutePath);
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if ($storage) {
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$propagator = $storage->getPropagator();
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$propagatedEntries = $propagator->propagateChange($internalPath, $time);
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foreach ($propagatedEntries as $entry) {
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$absolutePath = Filesystem::normalizePath($mount->getMountPoint() . '/' . $entry['path']);
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$relativePath = $this->view->getRelativePath($absolutePath);
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$this->emit('\OC\Files', 'propagate', [$relativePath, $entry]);
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}
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}
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}
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}
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/**
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* @return string[]
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*/
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public function getAllParents() {
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$parents = array();
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foreach ($this->getChanges() as $path) {
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$parents = array_values(array_unique(array_merge($parents, $this->getParents($path))));
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}
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return $parents;
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}
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/**
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* get all parent folders of $path
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*
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* @param string $path
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* @return string[]
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*/
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protected function getParents($path) {
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$parts = explode('/', $path);
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// remove the singe file
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array_pop($parts);
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$result = array('/');
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$resultPath = '';
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foreach ($parts as $part) {
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if ($part) {
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$resultPath .= '/' . $part;
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$result[] = $resultPath;
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}
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}
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return $result;
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}
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}
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