nextcloud/apps/user_ldap/lib/Jobs/UpdateGroups.php

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<?php
/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
*
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* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
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* @author Bart Visscher <bartv@thisnet.nl>
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
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* @author Joas Schilling <coding@schilljs.com>
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* @author Jörn Friedrich Dreyer <jfd@butonic.de>
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* @author Lukas Reschke <lukas@statuscode.ch>
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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 Robin McCorkell <robin@mccorkell.me.uk>
* @author Roeland Jago Douma <roeland@famdouma.nl>
* @author Roger Szabo <roger.szabo@web.de>
* @author Thomas Müller <thomas.mueller@tmit.eu>
*
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* @license AGPL-3.0
*
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* 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.
*
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* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
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* 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/>
*
*/
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namespace OCA\User_LDAP\Jobs;
use OC\BackgroundJob\TimedJob;
use OCA\User_LDAP\Group_Proxy;
use OCP\EventDispatcher\IEventDispatcher;
use OCP\Group\Events\UserAddedEvent;
use OCP\Group\Events\UserRemovedEvent;
use OCP\ILogger;
class UpdateGroups extends TimedJob {
private $groupsFromDB;
/** @var Group_Proxy */
private $groupBackend;
public function __construct(Group_Proxy $groupBackend) {
$this->interval = $this->getRefreshInterval();
$this->groupBackend = $groupBackend;
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}
/**
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* @param mixed $argument
*/
public function run($argument) {
$this->updateGroups();
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}
public function updateGroups() {
\OCP\Util::writeLog('user_ldap', 'Run background job "updateGroups"', ILogger::DEBUG);
$knownGroups = array_keys($this->getKnownGroups());
$actualGroups = $this->groupBackend->getGroups();
if (empty($actualGroups) && empty($knownGroups)) {
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\OCP\Util::writeLog('user_ldap',
'bgJ "updateGroups" groups do not seem to be configured properly, aborting.',
ILogger::INFO);
return;
}
$this->handleKnownGroups(array_intersect($actualGroups, $knownGroups));
$this->handleCreatedGroups(array_diff($actualGroups, $knownGroups));
$this->handleRemovedGroups(array_diff($knownGroups, $actualGroups));
\OCP\Util::writeLog('user_ldap', 'bgJ "updateGroups" Finished.', ILogger::DEBUG);
}
/**
* @return int
*/
private function getRefreshInterval() {
//defaults to every hour
return \OC::$server->getConfig()->getAppValue('user_ldap', 'bgjRefreshInterval', 3600);
}
/**
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* @param string[] $groups
*/
private function handleKnownGroups($groups) {
/** @var IEventDispatcher $dispatcher */
$dispatcher = \OC::$server->query(IEventDispatcher::class);
$groupManager = \OC::$server->getGroupManager();
$userManager = \OC::$server->getUserManager();
\OCP\Util::writeLog('user_ldap', 'bgJ "updateGroups" Dealing with known Groups.', ILogger::DEBUG);
$query = \OC_DB::prepare('
UPDATE `*PREFIX*ldap_group_members`
SET `owncloudusers` = ?
WHERE `owncloudname` = ?
');
if (!is_array($this->groupsFromDB)) {
$this->getKnownGroups();
}
foreach ($groups as $group) {
$knownUsers = unserialize($this->groupsFromDB[$group]['owncloudusers']);
$actualUsers = $this->groupBackend->usersInGroup($group);
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$hasChanged = false;
$groupObject = $groupManager->get($group);
foreach (array_diff($knownUsers, $actualUsers) as $removedUser) {
$userObject = $userManager->get($removedUser);
$dispatcher->dispatchTyped(new UserRemovedEvent($groupObject, $userObject));
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\OCP\Util::writeLog('user_ldap',
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'bgJ "updateGroups" "'.$removedUser.'" removed from "'.$group.'".',
ILogger::INFO);
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$hasChanged = true;
}
foreach (array_diff($actualUsers, $knownUsers) as $addedUser) {
$userObject = $userManager->get($addedUser);
$dispatcher->dispatchTyped(new UserAddedEvent($groupObject, $userObject));
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\OCP\Util::writeLog('user_ldap',
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'bgJ "updateGroups" "'.$addedUser.'" added to "'.$group.'".',
ILogger::INFO);
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$hasChanged = true;
}
if ($hasChanged) {
$query->execute([serialize($actualUsers), $group]);
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}
}
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\OCP\Util::writeLog('user_ldap',
'bgJ "updateGroups" FINISHED dealing with known Groups.',
ILogger::DEBUG);
}
/**
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* @param string[] $createdGroups
*/
private function handleCreatedGroups($createdGroups) {
\OCP\Util::writeLog('user_ldap', 'bgJ "updateGroups" dealing with created Groups.', ILogger::DEBUG);
$query = \OC_DB::prepare('
INSERT
INTO `*PREFIX*ldap_group_members` (`owncloudname`, `owncloudusers`)
VALUES (?, ?)
');
foreach ($createdGroups as $createdGroup) {
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\OCP\Util::writeLog('user_ldap',
'bgJ "updateGroups" new group "'.$createdGroup.'" found.',
ILogger::INFO);
$users = serialize($this->groupBackend->usersInGroup($createdGroup));
$query->execute([$createdGroup, $users]);
}
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\OCP\Util::writeLog('user_ldap',
'bgJ "updateGroups" FINISHED dealing with created Groups.',
ILogger::DEBUG);
}
/**
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* @param string[] $removedGroups
*/
private function handleRemovedGroups($removedGroups) {
\OCP\Util::writeLog('user_ldap', 'bgJ "updateGroups" dealing with removed groups.', ILogger::DEBUG);
$query = \OC_DB::prepare('
DELETE
FROM `*PREFIX*ldap_group_members`
WHERE `owncloudname` = ?
');
foreach ($removedGroups as $removedGroup) {
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\OCP\Util::writeLog('user_ldap',
'bgJ "updateGroups" group "'.$removedGroup.'" was removed.',
ILogger::INFO);
$query->execute([$removedGroup]);
}
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\OCP\Util::writeLog('user_ldap',
'bgJ "updateGroups" FINISHED dealing with removed groups.',
ILogger::DEBUG);
}
/**
* @return array
*/
private function getKnownGroups() {
if (is_array($this->groupsFromDB)) {
$this->groupsFromDB;
}
$query = \OC_DB::prepare('
SELECT `owncloudname`, `owncloudusers`
FROM `*PREFIX*ldap_group_members`
');
$result = $query->execute()->fetchAll();
$this->groupsFromDB = [];
foreach ($result as $dataset) {
$this->groupsFromDB[$dataset['owncloudname']] = $dataset;
}
return $this->groupsFromDB;
}
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}