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<?php
/**
* @author Vincent Petry <pvince81@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;
use OCP\IGroup;
use OCP\IUser;
use OCP\IGroupManager;
use OCA\Files_Sharing\Propagation\PropagationManager;
/**
* Propagate changes on group changes
*/
class GroupPropagationManager {
/**
* @var \OCP\IUserSession
*/
private $userSession;
/**
* @var \OCP\IGroupManager
*/
private $groupManager;
/**
* @var PropagationManager
*/
private $propagationManager;
/**
* Items shared with a given user.
* Key is user id and value is an array of shares.
*
* @var array
*/
private $userShares = [];
public function __construct(IUserSession $userSession, IGroupManager $groupManager, PropagationManager $propagationManager) {
$this->userSession = $userSession;
$this->groupManager = $groupManager;
$this->propagationManager = $propagationManager;
}
public function onPreProcessUser(IGroup $group, IUser $targetUser) {
$this->userShares[$targetUser->getUID()] = $this->getUserShares($targetUser->getUID());
}
public function onPostAddUser(IGroup $group, IUser $targetUser) {
$targetUserId = $targetUser->getUID();
$sharesAfter = $this->getUserShares($targetUserId);
$this->propagateSharesDiff($targetUserId, $sharesAfter, $this->userShares[$targetUserId]);
unset($this->userShares[$targetUserId]);
}
public function onPostRemoveUser(IGroup $group, IUser $targetUser) {
$targetUserId = $targetUser->getUID();
$sharesAfter = $this->getUserShares($targetUserId);
$this->propagateSharesDiff($targetUserId, $this->userShares[$targetUserId], $sharesAfter);
unset($this->userShares[$targetUserId]);
}
private function getUserShares($targetUserId) {
return \OCP\Share::getItemsSharedWithUser('file', $targetUserId);
}
/**
* Propagate etag for the shares that are in $shares1 but not in $shares2.
*
* @param string $targetUserId user id for which to propagate shares
* @param array $shares1
* @param array $shares2
*/
private function propagateSharesDiff($targetUserId, $shares1, $shares2) {
$sharesToPropagate = array_udiff(
$shares1,
$shares2,
function($share1, $share2) {
return ($share2['id'] - $share1['id']);
}
);
\OC\Files\Filesystem::initMountPoints($targetUserId);
$this->propagationManager->propagateSharesToUser($sharesToPropagate, $targetUserId);
}
/**
* 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;
}
$this->groupManager->listen('\OC\Group', 'preAddUser', [$this, 'onPreProcessUser']);
$this->groupManager->listen('\OC\Group', 'postAddUser', [$this, 'onPostAddUser']);
$this->groupManager->listen('\OC\Group', 'preRemoveUser', [$this, 'onPreProcessUser']);
$this->groupManager->listen('\OC\Group', 'postRemoveUser', [$this, 'onPostRemoveUser']);
}
public function tearDown() {
$this->groupManager->removeListener('\OC\Group', 'preAddUser', [$this, 'onPreProcessUser']);
$this->groupManager->removeListener('\OC\Group', 'postAddUser', [$this, 'onPostAddUser']);
$this->groupManager->removeListener('\OC\Group', 'preRemoveUser', [$this, 'onPreProcessUser']);
$this->groupManager->removeListener('\OC\Group', 'postRemoveUser', [$this, 'onPostRemoveUser']);
}
}
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