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nextcloud-server/lib/private/Group/Group.php

383 lines
9.7 KiB

<?php
/**
* SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
* SPDX-FileCopyrightText: 2016 ownCloud, Inc.
* SPDX-License-Identifier: AGPL-3.0-only
*/
namespace OC\Group;
use OC\Hooks\PublicEmitter;
use OC\User\LazyUser;
use OCP\EventDispatcher\IEventDispatcher;
use OCP\Group\Backend\ICountDisabledInGroup;
use OCP\Group\Backend\IGetDisplayNameBackend;
use OCP\Group\Backend\IHideFromCollaborationBackend;
use OCP\Group\Backend\INamedBackend;
use OCP\Group\Backend\ISearchableGroupBackend;
use OCP\Group\Backend\ISetDisplayNameBackend;
use OCP\Group\Events\BeforeGroupChangedEvent;
use OCP\Group\Events\BeforeGroupDeletedEvent;
use OCP\Group\Events\BeforeUserAddedEvent;
use OCP\Group\Events\BeforeUserRemovedEvent;
use OCP\Group\Events\GroupChangedEvent;
use OCP\Group\Events\GroupDeletedEvent;
use OCP\Group\Events\UserAddedEvent;
use OCP\Group\Events\UserRemovedEvent;
use OCP\GroupInterface;
use OCP\IGroup;
use OCP\IUser;
use OCP\IUserManager;
class Group implements IGroup {
/** @var null|string */
protected $displayName;
/** @var string */
private $gid;
/** @var \OC\User\User[] */
private $users = [];
/** @var bool */
private $usersLoaded;
/** @var Backend[] */
private $backends;
/** @var IEventDispatcher */
private $dispatcher;
/** @var \OC\User\Manager|IUserManager */
private $userManager;
/** @var PublicEmitter */
private $emitter;
public function __construct(string $gid, array $backends, IEventDispatcher $dispatcher, IUserManager $userManager, ?PublicEmitter $emitter = null, ?string $displayName = null) {
$this->gid = $gid;
$this->backends = $backends;
$this->dispatcher = $dispatcher;
$this->userManager = $userManager;
$this->emitter = $emitter;
$this->displayName = $displayName;
}
public function getGID(): string {
return $this->gid;
}
public function getDisplayName(): string {
if (is_null($this->displayName)) {
foreach ($this->backends as $backend) {
if ($backend instanceof IGetDisplayNameBackend) {
$displayName = $backend->getDisplayName($this->gid);
if (trim($displayName) !== '') {
$this->displayName = $displayName;
return $this->displayName;
}
}
}
return $this->gid;
}
return $this->displayName;
}
public function setDisplayName(string $displayName): bool {
$displayName = trim($displayName);
if ($displayName !== '') {
$this->dispatcher->dispatchTyped(new BeforeGroupChangedEvent($this, 'displayName', $displayName, $this->displayName));
foreach ($this->backends as $backend) {
if (($backend instanceof ISetDisplayNameBackend)
&& $backend->setDisplayName($this->gid, $displayName)) {
$this->displayName = $displayName;
$this->dispatcher->dispatchTyped(new GroupChangedEvent($this, 'displayName', $displayName, ''));
return true;
}
}
}
return false;
}
/**
* get all users in the group
*
* @return \OC\User\User[]
*/
public function getUsers(): array {
if ($this->usersLoaded) {
return $this->users;
}
$userIds = [];
foreach ($this->backends as $backend) {
$diff = array_diff(
$backend->usersInGroup($this->gid),
$userIds
);
if ($diff) {
$userIds = array_merge($userIds, $diff);
}
}
$this->users = $this->getVerifiedUsers($userIds);
$this->usersLoaded = true;
return $this->users;
}
/**
* check if a user is in the group
*
* @param IUser $user
* @return bool
*/
public function inGroup(IUser $user): bool {
if (isset($this->users[$user->getUID()])) {
return true;
}
foreach ($this->backends as $backend) {
if ($backend->inGroup($user->getUID(), $this->gid)) {
$this->users[$user->getUID()] = $user;
return true;
}
}
return false;
}
/**
* add a user to the group
*
* @param IUser $user
*/
public function addUser(IUser $user): void {
if ($this->inGroup($user)) {
return;
}
$this->dispatcher->dispatchTyped(new BeforeUserAddedEvent($this, $user));
if ($this->emitter) {
$this->emitter->emit('\OC\Group', 'preAddUser', [$this, $user]);
}
foreach ($this->backends as $backend) {
if ($backend->implementsActions(\OC\Group\Backend::ADD_TO_GROUP)) {
$backend->addToGroup($user->getUID(), $this->gid);
$this->users[$user->getUID()] = $user;
$this->dispatcher->dispatchTyped(new UserAddedEvent($this, $user));
if ($this->emitter) {
$this->emitter->emit('\OC\Group', 'postAddUser', [$this, $user]);
}
return;
}
}
}
/**
* remove a user from the group
*/
public function removeUser(IUser $user): void {
$result = false;
$this->dispatcher->dispatchTyped(new BeforeUserRemovedEvent($this, $user));
if ($this->emitter) {
$this->emitter->emit('\OC\Group', 'preRemoveUser', [$this, $user]);
}
foreach ($this->backends as $backend) {
if ($backend->implementsActions(\OC\Group\Backend::REMOVE_FROM_GOUP) and $backend->inGroup($user->getUID(), $this->gid)) {
$backend->removeFromGroup($user->getUID(), $this->gid);
$result = true;
}
}
if ($result) {
$this->dispatcher->dispatchTyped(new UserRemovedEvent($this, $user));
if ($this->emitter) {
$this->emitter->emit('\OC\Group', 'postRemoveUser', [$this, $user]);
}
if ($this->users) {
foreach ($this->users as $index => $groupUser) {
if ($groupUser->getUID() === $user->getUID()) {
unset($this->users[$index]);
return;
}
}
}
}
}
/**
* Search for users in the group by userid or display name
* @return IUser[]
*/
public function searchUsers(string $search, ?int $limit = null, ?int $offset = null): array {
$users = [];
foreach ($this->backends as $backend) {
if ($backend instanceof ISearchableGroupBackend) {
$users += $backend->searchInGroup($this->gid, $search, $limit ?? -1, $offset ?? 0);
} else {
$userIds = $backend->usersInGroup($this->gid, $search, $limit ?? -1, $offset ?? 0);
$userManager = \OCP\Server::get(IUserManager::class);
foreach ($userIds as $userId) {
if (!isset($users[$userId])) {
$users[$userId] = new LazyUser($userId, $userManager);
}
}
}
if (!is_null($limit) and $limit <= 0) {
return $users;
}
}
return $users;
}
/**
* returns the number of users matching the search string
*
* @param string $search
* @return int|bool
*/
public function count($search = ''): int|bool {
$users = false;
foreach ($this->backends as $backend) {
if ($backend->implementsActions(\OC\Group\Backend::COUNT_USERS)) {
if ($users === false) {
//we could directly add to a bool variable, but this would
//be ugly
$users = 0;
}
$users += $backend->countUsersInGroup($this->gid, $search);
}
}
return $users;
}
/**
* returns the number of disabled users
*
* @return int|bool
*/
public function countDisabled(): int|bool {
$users = false;
foreach ($this->backends as $backend) {
if ($backend instanceof ICountDisabledInGroup) {
if ($users === false) {
//we could directly add to a bool variable, but this would
//be ugly
$users = 0;
}
$users += $backend->countDisabledInGroup($this->gid);
}
}
return $users;
}
/**
* search for users in the group by displayname
*
* @param string $search
* @param int $limit
* @param int $offset
* @return IUser[]
* @deprecated 27.0.0 Use searchUsers instead (same implementation)
*/
public function searchDisplayName(string $search, ?int $limit = null, ?int $offset = null): array {
return $this->searchUsers($search, $limit, $offset);
}
/**
* Get the names of the backend classes the group is connected to
*
* @return string[]
*/
public function getBackendNames(): array {
$backends = [];
foreach ($this->backends as $backend) {
if ($backend instanceof INamedBackend) {
$backends[] = $backend->getBackendName();
} else {
$backends[] = get_class($backend);
}
}
return $backends;
}
/**
* Delete the group
*
* @return bool
*/
public function delete(): bool {
// Prevent users from deleting group admin
if ($this->getGID() === 'admin') {
return false;
}
$result = false;
$this->dispatcher->dispatchTyped(new BeforeGroupDeletedEvent($this));
if ($this->emitter) {
$this->emitter->emit('\OC\Group', 'preDelete', [$this]);
}
foreach ($this->backends as $backend) {
if ($backend->implementsActions(\OC\Group\Backend::DELETE_GROUP)) {
$result = $result || $backend->deleteGroup($this->gid);
}
}
if ($result) {
$this->dispatcher->dispatchTyped(new GroupDeletedEvent($this));
if ($this->emitter) {
$this->emitter->emit('\OC\Group', 'postDelete', [$this]);
}
}
return $result;
}
/**
* returns all the Users from an array that really exists
* @param string[] $userIds an array containing user IDs
* @return \OC\User\User[] an Array with the userId as Key and \OC\User\User as value
*/
private function getVerifiedUsers(array $userIds): array {
$users = [];
foreach ($userIds as $userId) {
$user = $this->userManager->get($userId);
if (!is_null($user)) {
$users[$userId] = $user;
}
}
return $users;
}
/**
* @return bool
* @since 14.0.0
*/
public function canRemoveUser(): bool {
foreach ($this->backends as $backend) {
if ($backend->implementsActions(GroupInterface::REMOVE_FROM_GOUP)) {
return true;
}
}
return false;
}
/**
* @return bool
* @since 14.0.0
*/
public function canAddUser(): bool {
foreach ($this->backends as $backend) {
if ($backend->implementsActions(GroupInterface::ADD_TO_GROUP)) {
return true;
}
}
return false;
}
/**
* @return bool
* @since 16.0.0
*/
public function hideFromCollaboration(): bool {
return array_reduce($this->backends, function (bool $hide, GroupInterface $backend) {
return $hide | ($backend instanceof IHideFromCollaborationBackend && $backend->hideGroup($this->gid));
}, false);
}
}