153 lines
4.1 KiB
PHP
153 lines
4.1 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 OCA\Files_Sharing\Propagation;
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use OC\Files\Cache\ChangePropagator;
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use OC\Files\View;
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use OC\Share\Share;
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/**
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* Propagate etags for share recipients
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*/
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class RecipientPropagator {
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/**
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* @var string
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*/
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protected $userId;
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/**
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* @var \OC\Files\Cache\ChangePropagator
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*/
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protected $changePropagator;
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/**
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* @var \OCP\IConfig
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*/
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protected $config;
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/**
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* @var PropagationManager
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*/
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private $manager;
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/**
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* @param string $userId current user, must match the propagator's
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* user
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* @param \OC\Files\Cache\ChangePropagator $changePropagator change propagator
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* initialized with a view for $user
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* @param \OCP\IConfig $config
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* @param PropagationManager $manager
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*/
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public function __construct($userId, $changePropagator, $config, PropagationManager $manager) {
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$this->userId = $userId;
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$this->changePropagator = $changePropagator;
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$this->config = $config;
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$this->manager = $manager;
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}
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/**
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* Propagate the etag changes for all shares marked as dirty and mark the shares as clean
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*
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* @param array $shares the shares for the users
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* @param int $time
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*/
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public function propagateDirtyMountPoints(array $shares, $time = null) {
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if ($time === null) {
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$time = microtime(true);
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}
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$dirtyShares = $this->getDirtyShares($shares);
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foreach ($dirtyShares as $share) {
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$this->changePropagator->addChange($share['file_target']);
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}
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if (count($dirtyShares)) {
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$this->config->setUserValue($this->userId, 'files_sharing', 'last_propagate', $time);
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$this->changePropagator->propagateChanges(floor($time));
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}
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}
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/**
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* Get all shares we need to update the etag for
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*
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* @param array $shares the shares for the users
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* @return string[]
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*/
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protected function getDirtyShares($shares) {
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$dirty = [];
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$userTime = $this->config->getUserValue($this->userId, 'files_sharing', 'last_propagate', 0);
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foreach ($shares as $share) {
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$updateTime = $this->config->getAppValue('files_sharing', $share['id'], 0);
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if ($updateTime >= $userTime) {
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$dirty[] = $share;
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}
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}
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return $dirty;
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}
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/**
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* @param array $share
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* @param int $time
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*/
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public function markDirty($share, $time = null) {
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if ($time === null) {
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$time = microtime(true);
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}
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$this->config->setAppValue('files_sharing', $share['id'], $time);
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}
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/**
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* Listen on the propagator for updates made to shares owned by a user
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*
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* @param \OC\Files\Cache\ChangePropagator $propagator
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* @param string $owner
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*/
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public function attachToPropagator(ChangePropagator $propagator, $owner) {
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$propagator->listen('\OC\Files', 'propagate', function ($path, $entry) use ($owner) {
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$this->propagateById($entry['fileid']);
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});
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}
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protected $propagatingIds = [];
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public function propagateById($id) {
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if (isset($this->propagatingIds[$id])) {
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return;
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}
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$this->propagatingIds[$id] = true;
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$shares = Share::getAllSharesForFileId($id);
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foreach ($shares as $share) {
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// propagate down the share tree
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$this->markDirty($share, microtime(true));
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// propagate up the share tree
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if ($share['share_with'] === $this->userId) {
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$user = $share['uid_owner'];
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$view = new View('/' . $user . '/files');
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$path = $view->getPath($share['file_source']);
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$watcher = new ChangeWatcher($view, $this->manager->getSharePropagator($user));
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$watcher->writeHook(['path' => $path]);
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}
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}
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unset($this->propagatingIds[$id]);
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}
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}
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