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425 lines
11 KiB
425 lines
11 KiB
<?php
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/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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*
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* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
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* @author Bart Visscher <bartv@thisnet.nl>
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* @author Bernhard Posselt <dev@bernhard-posselt.com>
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* @author Christoph Wurst <christoph@winzerhof-wurst.at>
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* @author Joas Schilling <coding@schilljs.com>
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* @author John Molakvoæ (skjnldsv) <skjnldsv@protonmail.com>
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* @author Jörn Friedrich Dreyer <jfd@butonic.de>
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* @author Knut Ahlers <knut@ahlers.me>
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* @author Lukas Reschke <lukas@statuscode.ch>
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* @author macjohnny <estebanmarin@gmx.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>
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* @author Roeland Jago Douma <roeland@famdouma.nl>
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* @author Roman Kreisel <mail@romankreisel.de>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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* @author Vincent Petry <pvince81@owncloud.com>
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* @author Vinicius Cubas Brand <vinicius@eita.org.br>
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* @author voxsim "Simon Vocella"
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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 OC\Group;
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use OC\Hooks\PublicEmitter;
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use OCP\GroupInterface;
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use OCP\IGroup;
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use OCP\IGroupManager;
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use OCP\ILogger;
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use OCP\IUser;
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use Symfony\Component\EventDispatcher\EventDispatcherInterface;
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/**
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* Class Manager
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*
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* Hooks available in scope \OC\Group:
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* - preAddUser(\OC\Group\Group $group, \OC\User\User $user)
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* - postAddUser(\OC\Group\Group $group, \OC\User\User $user)
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* - preRemoveUser(\OC\Group\Group $group, \OC\User\User $user)
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* - postRemoveUser(\OC\Group\Group $group, \OC\User\User $user)
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* - preDelete(\OC\Group\Group $group)
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* - postDelete(\OC\Group\Group $group)
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* - preCreate(string $groupId)
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* - postCreate(\OC\Group\Group $group)
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*
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* @package OC\Group
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*/
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class Manager extends PublicEmitter implements IGroupManager {
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/** @var GroupInterface[] */
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private $backends = [];
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/** @var \OC\User\Manager */
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private $userManager;
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/** @var EventDispatcherInterface */
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private $dispatcher;
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/** @var ILogger */
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private $logger;
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/** @var \OC\Group\Group[] */
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private $cachedGroups = [];
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/** @var (string[])[] */
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private $cachedUserGroups = [];
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/** @var \OC\SubAdmin */
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private $subAdmin = null;
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/**
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* @param \OC\User\Manager $userManager
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* @param EventDispatcherInterface $dispatcher
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* @param ILogger $logger
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*/
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public function __construct(\OC\User\Manager $userManager,
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EventDispatcherInterface $dispatcher,
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ILogger $logger) {
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$this->userManager = $userManager;
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$this->dispatcher = $dispatcher;
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$this->logger = $logger;
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$cachedGroups = &$this->cachedGroups;
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$cachedUserGroups = &$this->cachedUserGroups;
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$this->listen('\OC\Group', 'postDelete', function ($group) use (&$cachedGroups, &$cachedUserGroups) {
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/**
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* @var \OC\Group\Group $group
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*/
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unset($cachedGroups[$group->getGID()]);
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$cachedUserGroups = [];
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});
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$this->listen('\OC\Group', 'postAddUser', function ($group) use (&$cachedUserGroups) {
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/**
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* @var \OC\Group\Group $group
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*/
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$cachedUserGroups = [];
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});
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$this->listen('\OC\Group', 'postRemoveUser', function ($group) use (&$cachedUserGroups) {
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/**
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* @var \OC\Group\Group $group
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*/
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$cachedUserGroups = [];
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});
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}
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/**
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* Checks whether a given backend is used
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*
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* @param string $backendClass Full classname including complete namespace
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* @return bool
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*/
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public function isBackendUsed($backendClass) {
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$backendClass = strtolower(ltrim($backendClass, '\\'));
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foreach ($this->backends as $backend) {
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if (strtolower(get_class($backend)) === $backendClass) {
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return true;
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}
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}
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return false;
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}
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/**
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* @param \OCP\GroupInterface $backend
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*/
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public function addBackend($backend) {
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$this->backends[] = $backend;
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$this->clearCaches();
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}
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public function clearBackends() {
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$this->backends = [];
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$this->clearCaches();
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}
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/**
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* Get the active backends
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*
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* @return \OCP\GroupInterface[]
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*/
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public function getBackends() {
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return $this->backends;
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}
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protected function clearCaches() {
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$this->cachedGroups = [];
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$this->cachedUserGroups = [];
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}
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/**
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* @param string $gid
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* @return IGroup|null
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*/
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public function get($gid) {
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if (isset($this->cachedGroups[$gid])) {
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return $this->cachedGroups[$gid];
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}
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return $this->getGroupObject($gid);
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}
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/**
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* @param string $gid
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* @param string $displayName
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* @return \OCP\IGroup|null
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*/
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protected function getGroupObject($gid, $displayName = null) {
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$backends = [];
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foreach ($this->backends as $backend) {
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if ($backend->implementsActions(Backend::GROUP_DETAILS)) {
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$groupData = $backend->getGroupDetails($gid);
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if (is_array($groupData) && !empty($groupData)) {
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// take the display name from the first backend that has a non-null one
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if (is_null($displayName) && isset($groupData['displayName'])) {
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$displayName = $groupData['displayName'];
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}
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$backends[] = $backend;
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}
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} elseif ($backend->groupExists($gid)) {
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$backends[] = $backend;
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}
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}
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if (count($backends) === 0) {
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return null;
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}
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$this->cachedGroups[$gid] = new Group($gid, $backends, $this->dispatcher, $this->userManager, $this, $displayName);
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return $this->cachedGroups[$gid];
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}
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/**
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* @param string $gid
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* @return bool
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*/
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public function groupExists($gid) {
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return $this->get($gid) instanceof IGroup;
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}
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/**
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* @param string $gid
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* @return IGroup|null
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*/
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public function createGroup($gid) {
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if ($gid === '' || $gid === null) {
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return null;
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} elseif ($group = $this->get($gid)) {
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return $group;
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} else {
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$this->emit('\OC\Group', 'preCreate', [$gid]);
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foreach ($this->backends as $backend) {
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if ($backend->implementsActions(Backend::CREATE_GROUP)) {
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if ($backend->createGroup($gid)) {
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$group = $this->getGroupObject($gid);
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$this->emit('\OC\Group', 'postCreate', [$group]);
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return $group;
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}
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}
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}
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return null;
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}
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}
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/**
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* @param string $search
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* @param int $limit
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* @param int $offset
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* @return \OC\Group\Group[]
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*/
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public function search($search, $limit = null, $offset = null) {
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$groups = [];
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foreach ($this->backends as $backend) {
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$groupIds = $backend->getGroups($search, $limit, $offset);
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foreach ($groupIds as $groupId) {
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$aGroup = $this->get($groupId);
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if ($aGroup instanceof IGroup) {
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$groups[$groupId] = $aGroup;
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} else {
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$this->logger->debug('Group "' . $groupId . '" was returned by search but not found through direct access', ['app' => 'core']);
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}
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}
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if (!is_null($limit) and $limit <= 0) {
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return array_values($groups);
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}
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}
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return array_values($groups);
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}
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/**
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* @param IUser|null $user
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* @return \OC\Group\Group[]
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*/
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public function getUserGroups(IUser $user = null) {
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if (!$user instanceof IUser) {
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return [];
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}
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return $this->getUserIdGroups($user->getUID());
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}
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/**
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* @param string $uid the user id
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* @return \OC\Group\Group[]
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*/
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public function getUserIdGroups($uid) {
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$groups = [];
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foreach ($this->getUserIdGroupIds($uid) as $groupId) {
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$aGroup = $this->get($groupId);
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if ($aGroup instanceof IGroup) {
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$groups[$groupId] = $aGroup;
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} else {
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$this->logger->debug('User "' . $uid . '" belongs to deleted group: "' . $groupId . '"', ['app' => 'core']);
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}
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}
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return $groups;
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}
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/**
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* Checks if a userId is in the admin group
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*
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* @param string $userId
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* @return bool if admin
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*/
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public function isAdmin($userId) {
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foreach ($this->backends as $backend) {
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if ($backend->implementsActions(Backend::IS_ADMIN) && $backend->isAdmin($userId)) {
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return true;
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}
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}
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return $this->isInGroup($userId, 'admin');
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}
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/**
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* Checks if a userId is in a group
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*
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* @param string $userId
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* @param string $group
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* @return bool if in group
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*/
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public function isInGroup($userId, $group) {
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return array_search($group, $this->getUserIdGroupIds($userId)) !== false;
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}
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/**
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* get a list of group ids for a user
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*
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* @param IUser $user
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* @return array with group ids
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*/
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public function getUserGroupIds(IUser $user) {
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return $this->getUserIdGroupIds($user->getUID());
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}
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/**
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* @param string $uid the user id
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* @return GroupInterface[]
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*/
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private function getUserIdGroupIds($uid) {
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if (!isset($this->cachedUserGroups[$uid])) {
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$groups = [];
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foreach ($this->backends as $backend) {
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if ($groupIds = $backend->getUserGroups($uid)) {
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$groups = array_merge($groups, $groupIds);
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}
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}
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$this->cachedUserGroups[$uid] = $groups;
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}
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return $this->cachedUserGroups[$uid];
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}
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/**
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* get an array of groupid and displayName for a user
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*
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* @param IUser $user
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* @return array ['displayName' => displayname]
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*/
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public function getUserGroupNames(IUser $user) {
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return array_map(function ($group) {
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return ['displayName' => $group->getDisplayName()];
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}, $this->getUserGroups($user));
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}
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/**
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* get a list of all display names in a group
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*
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* @param string $gid
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* @param string $search
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* @param int $limit
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* @param int $offset
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* @return array an array of display names (value) and user ids (key)
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*/
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public function displayNamesInGroup($gid, $search = '', $limit = -1, $offset = 0) {
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$group = $this->get($gid);
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if (is_null($group)) {
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return [];
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}
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$search = trim($search);
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$groupUsers = [];
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if (!empty($search)) {
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// only user backends have the capability to do a complex search for users
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$searchOffset = 0;
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$searchLimit = $limit * 100;
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if ($limit === -1) {
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$searchLimit = 500;
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}
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do {
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$filteredUsers = $this->userManager->searchDisplayName($search, $searchLimit, $searchOffset);
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foreach ($filteredUsers as $filteredUser) {
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if ($group->inGroup($filteredUser)) {
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$groupUsers[] = $filteredUser;
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}
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}
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$searchOffset += $searchLimit;
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} while (count($groupUsers) < $searchLimit + $offset && count($filteredUsers) >= $searchLimit);
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if ($limit === -1) {
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$groupUsers = array_slice($groupUsers, $offset);
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} else {
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$groupUsers = array_slice($groupUsers, $offset, $limit);
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}
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} else {
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$groupUsers = $group->searchUsers('', $limit, $offset);
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}
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$matchingUsers = [];
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foreach ($groupUsers as $groupUser) {
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$matchingUsers[(string) $groupUser->getUID()] = $groupUser->getDisplayName();
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}
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return $matchingUsers;
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}
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/**
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* @return \OC\SubAdmin
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*/
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public function getSubAdmin() {
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if (!$this->subAdmin) {
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$this->subAdmin = new \OC\SubAdmin(
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$this->userManager,
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$this,
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\OC::$server->getDatabaseConnection()
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);
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}
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return $this->subAdmin;
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}
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}
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