127 lines
3.9 KiB
PHP
127 lines
3.9 KiB
PHP
<?php
|
|
/**
|
|
* @author Robin Appelman <icewind@owncloud.com>
|
|
*
|
|
* @copyright Copyright (c) 2015, ownCloud, Inc.
|
|
* @license AGPL-3.0
|
|
*
|
|
* This code is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License, version 3,
|
|
* as published by the Free Software Foundation.
|
|
*
|
|
* This program 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 License, version 3,
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>
|
|
*
|
|
*/
|
|
|
|
namespace OCA\Files_Sharing\Propagation;
|
|
|
|
use OC\Files\Filesystem;
|
|
use OC\Files\View;
|
|
use OCP\IConfig;
|
|
use OCP\IUserSession;
|
|
|
|
|
|
/**
|
|
* Keep track of all change and share propagators by owner
|
|
*/
|
|
class PropagationManager {
|
|
/**
|
|
* @var \OCP\IUserSession
|
|
*/
|
|
private $userSession;
|
|
|
|
/**
|
|
* @var \OCP\IConfig
|
|
*/
|
|
private $config;
|
|
|
|
/**
|
|
* Change propagators for share owner
|
|
*
|
|
* @var \OC\Files\Cache\ChangePropagator[]
|
|
*/
|
|
private $changePropagators = [];
|
|
|
|
/**
|
|
* Recipient propagators
|
|
*
|
|
* @var \OCA\Files_Sharing\Propagation\RecipientPropagator[]
|
|
*/
|
|
private $sharePropagators = [];
|
|
|
|
public function __construct(IUserSession $userSession, IConfig $config) {
|
|
$this->userSession = $userSession;
|
|
$this->config = $config;
|
|
}
|
|
|
|
/**
|
|
* @param string $user
|
|
* @return \OC\Files\Cache\ChangePropagator
|
|
*/
|
|
public function getChangePropagator($user) {
|
|
$activeUser = $this->userSession->getUser();
|
|
|
|
// for the local user we want to propagator from the active view, not any cached one
|
|
if ($activeUser && $activeUser->getUID() === $user && Filesystem::getView() instanceof View) {
|
|
// it's important that we take the existing propagator here to make sure we can listen to external changes
|
|
$this->changePropagators[$user] = Filesystem::getView()->getUpdater()->getPropagator();
|
|
}
|
|
if (isset($this->changePropagators[$user])) {
|
|
return $this->changePropagators[$user];
|
|
}
|
|
$view = new View('/' . $user . '/files');
|
|
$this->changePropagators[$user] = $view->getUpdater()->getPropagator();
|
|
return $this->changePropagators[$user];
|
|
}
|
|
|
|
/**
|
|
* @param string $user
|
|
* @return \OCA\Files_Sharing\Propagation\RecipientPropagator
|
|
*/
|
|
public function getSharePropagator($user) {
|
|
if (isset($this->sharePropagators[$user])) {
|
|
return $this->sharePropagators[$user];
|
|
}
|
|
$this->sharePropagators[$user] = new RecipientPropagator($user, $this->getChangePropagator($user), $this->config, $this);
|
|
return $this->sharePropagators[$user];
|
|
}
|
|
|
|
/**
|
|
* Attach the recipient propagator for $user to the change propagator of a share owner to mark shares as dirty when the owner makes a change to a share
|
|
*
|
|
* @param string $shareOwner
|
|
* @param string $user
|
|
*/
|
|
public function listenToOwnerChanges($shareOwner, $user) {
|
|
$sharePropagator = $this->getSharePropagator($user);
|
|
$ownerPropagator = $this->getChangePropagator($shareOwner);
|
|
$sharePropagator->attachToPropagator($ownerPropagator, $shareOwner);
|
|
}
|
|
|
|
/**
|
|
* To be called from setupFS trough a hook
|
|
*
|
|
* Sets up listening to changes made to shares owned by the current user
|
|
*/
|
|
public function globalSetup() {
|
|
$user = $this->userSession->getUser();
|
|
if (!$user) {
|
|
return;
|
|
}
|
|
$recipientPropagator = $this->getSharePropagator($user->getUID());
|
|
$watcher = new ChangeWatcher(Filesystem::getView(), $recipientPropagator);
|
|
|
|
// for marking shares owned by the active user as dirty when a file inside them changes
|
|
$this->listenToOwnerChanges($user->getUID(), $user->getUID());
|
|
\OC_Hook::connect('OC_Filesystem', 'post_write', $watcher, 'writeHook');
|
|
\OC_Hook::connect('OC_Filesystem', 'post_delete', $watcher, 'writeHook');
|
|
\OC_Hook::connect('OC_Filesystem', 'post_rename', $watcher, 'renameHook');
|
|
}
|
|
}
|