148 lines
4 KiB
PHP
148 lines
4 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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*
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* @author Christopher Schäpers <kondou@ts.unde.re>
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* @author Jörn Friedrich Dreyer <jfd@butonic.de>
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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 <robin@icewind.nl>
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* @author Roeland Jago Douma <roeland@famdouma.nl>
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*
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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 OCA\Files_Sharing;
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use OC\Files\Cache\FailedCache;
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use OC\Files\Cache\Wrapper\CacheJail;
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use OCP\Files\Cache\ICacheEntry;
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/**
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* Metadata cache for shared files
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*
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* don't use this class directly if you need to get metadata, use \OC\Files\Filesystem::getFileInfo instead
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*/
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class Cache extends CacheJail {
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/**
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* @var \OCA\Files_Sharing\SharedStorage
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*/
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private $storage;
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/**
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* @var ICacheEntry
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*/
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private $sourceRootInfo;
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private $rootUnchanged = true;
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private $ownerDisplayName;
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private $numericId;
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/**
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* @param \OCA\Files_Sharing\SharedStorage $storage
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* @param ICacheEntry $sourceRootInfo
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*/
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public function __construct($storage, ICacheEntry $sourceRootInfo) {
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$this->storage = $storage;
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$this->sourceRootInfo = $sourceRootInfo;
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$this->numericId = $sourceRootInfo->getStorageId();
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parent::__construct(
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null,
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$this->sourceRootInfo->getPath()
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);
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}
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public function getCache() {
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if (is_null($this->cache)) {
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$sourceStorage = $this->storage->getSourceStorage();
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if ($sourceStorage) {
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$this->cache = $sourceStorage->getCache();
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} else {
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// don't set $this->cache here since sourceStorage will be set later
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return new FailedCache();
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}
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}
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return $this->cache;
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}
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public function getNumericStorageId() {
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if (isset($this->numericId)) {
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return $this->numericId;
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} else {
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return false;
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}
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}
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public function get($file) {
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if ($this->rootUnchanged && ($file === '' || $file === $this->sourceRootInfo->getId())) {
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return $this->formatCacheEntry(clone $this->sourceRootInfo);
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}
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return parent::get($file);
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}
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public function update($id, array $data) {
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$this->rootUnchanged = false;
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parent::update($id, $data);
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}
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public function insert($file, array $data) {
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$this->rootUnchanged = false;
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return parent::insert($file, $data);
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}
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public function remove($file) {
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$this->rootUnchanged = false;
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parent::remove($file);
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}
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public function moveFromCache(\OCP\Files\Cache\ICache $sourceCache, $sourcePath, $targetPath) {
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$this->rootUnchanged = false;
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return parent::moveFromCache($sourceCache, $sourcePath, $targetPath);
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}
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protected function formatCacheEntry($entry) {
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$path = isset($entry['path']) ? $entry['path'] : '';
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$entry = parent::formatCacheEntry($entry);
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$sharePermissions = $this->storage->getPermissions($path);
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if (isset($entry['permissions'])) {
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$entry['permissions'] &= $sharePermissions;
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} else {
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$entry['permissions'] = $sharePermissions;
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}
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$entry['uid_owner'] = $this->storage->getOwner($path);
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$entry['displayname_owner'] = $this->getOwnerDisplayName();
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if ($path === '') {
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$entry['is_share_mount_point'] = true;
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}
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return $entry;
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}
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private function getOwnerDisplayName() {
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if (!$this->ownerDisplayName) {
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$this->ownerDisplayName = \OC_User::getDisplayName($this->storage->getOwner(''));
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}
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return $this->ownerDisplayName;
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}
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/**
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* remove all entries for files that are stored on the storage from the cache
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*/
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public function clear() {
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// Not a valid action for Shared Cache
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}
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}
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