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<?php
/**
* SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
* SPDX-FileCopyrightText: 2016 ownCloud, Inc.
* SPDX-License-Identifier: AGPL-3.0-only
*/
namespace OC;
use OC\Hooks\PublicEmitter;
use OCP\EventDispatcher\IEventDispatcher;
use OCP\Group\Events\SubAdminAddedEvent;
use OCP\Group\Events\SubAdminRemovedEvent;
use OCP\Group\ISubAdmin;
use OCP\IDBConnection;
use OCP\IGroup;
use OCP\IGroupManager;
use OCP\IUser;
use OCP\IUserManager;
class SubAdmin extends PublicEmitter implements ISubAdmin {
public function __construct(
private IUserManager $userManager,
private IGroupManager $groupManager,
private IDBConnection $dbConn,
private IEventDispatcher $eventDispatcher,
) {
$this->userManager->listen('\OC\User', 'postDelete', function ($user) {
$this->post_deleteUser($user);
});
$this->groupManager->listen('\OC\Group', 'postDelete', function ($group) {
$this->post_deleteGroup($group);
});
}
/**
* add a SubAdmin
* @param IUser $user user to be SubAdmin
* @param IGroup $group group $user becomes subadmin of
*/
public function createSubAdmin(IUser $user, IGroup $group): void {
$qb = $this->dbConn->getQueryBuilder();
$qb->insert('group_admin')
->values([
'gid' => $qb->createNamedParameter($group->getGID()),
'uid' => $qb->createNamedParameter($user->getUID())
])
->executeStatement();
/** @deprecated 21.0.0 - use type SubAdminAddedEvent instead */
$this->emit('\OC\SubAdmin', 'postCreateSubAdmin', [$user, $group]);
$event = new SubAdminAddedEvent($group, $user);
$this->eventDispatcher->dispatchTyped($event);
}
/**
* delete a SubAdmin
* @param IUser $user the user that is the SubAdmin
* @param IGroup $group the group
*/
public function deleteSubAdmin(IUser $user, IGroup $group): void {
$qb = $this->dbConn->getQueryBuilder();
$qb->delete('group_admin')
->where($qb->expr()->eq('gid', $qb->createNamedParameter($group->getGID())))
->andWhere($qb->expr()->eq('uid', $qb->createNamedParameter($user->getUID())))
->executeStatement();
/** @deprecated 21.0.0 - use type SubAdminRemovedEvent instead */
$this->emit('\OC\SubAdmin', 'postDeleteSubAdmin', [$user, $group]);
$event = new SubAdminRemovedEvent($group, $user);
$this->eventDispatcher->dispatchTyped($event);
}
/**
* get groups of a SubAdmin
* @param IUser $user the SubAdmin
* @return IGroup[]
*/
public function getSubAdminsGroups(IUser $user): array {
$groupIds = $this->getSubAdminsGroupIds($user);
$groups = [];
foreach ($groupIds as $groupId) {
$group = $this->groupManager->get($groupId);
if ($group !== null) {
$groups[$group->getGID()] = $group;
}
}
return $groups;
}
/**
* Get group ids of a SubAdmin
* @param IUser $user the SubAdmin
* @return string[]
*/
public function getSubAdminsGroupIds(IUser $user): array {
$qb = $this->dbConn->getQueryBuilder();
$result = $qb->select('gid')
->from('group_admin')
->where($qb->expr()->eq('uid', $qb->createNamedParameter($user->getUID())))
->executeQuery();
$groups = [];
while ($row = $result->fetch()) {
$groups[] = $row['gid'];
}
$result->closeCursor();
return $groups;
}
/**
* get an array of groupid and displayName for a user
* @param IUser $user
* @return array ['displayName' => displayname]
*/
public function getSubAdminsGroupsName(IUser $user): array {
return array_map(function ($group) {
return ['displayName' => $group->getDisplayName()];
}, $this->getSubAdminsGroups($user));
}
/**
* get SubAdmins of a group
* @param IGroup $group the group
* @return IUser[]
*/
public function getGroupsSubAdmins(IGroup $group): array {
$qb = $this->dbConn->getQueryBuilder();
$result = $qb->select('uid')
->from('group_admin')
->where($qb->expr()->eq('gid', $qb->createNamedParameter($group->getGID())))
->executeQuery();
$users = [];
while ($row = $result->fetch()) {
$user = $this->userManager->get($row['uid']);
if (!is_null($user)) {
$users[] = $user;
}
}
$result->closeCursor();
return $users;
}
/**
* get all SubAdmins
* @return array
*/
public function getAllSubAdmins(): array {
$qb = $this->dbConn->getQueryBuilder();
$result = $qb->select('*')
->from('group_admin')
->executeQuery();
$subadmins = [];
while ($row = $result->fetch()) {
$user = $this->userManager->get($row['uid']);
$group = $this->groupManager->get($row['gid']);
if (!is_null($user) && !is_null($group)) {
$subadmins[] = [
'user' => $user,
'group' => $group
];
}
}
$result->closeCursor();
return $subadmins;
}
/**
* checks if a user is a SubAdmin of a group
* @param IUser $user
* @param IGroup $group
* @return bool
*/
public function isSubAdminOfGroup(IUser $user, IGroup $group): bool {
$qb = $this->dbConn->getQueryBuilder();
/*
* Primary key is ('gid', 'uid') so max 1 result possible here
*/
$result = $qb->select('*')
->from('group_admin')
->where($qb->expr()->eq('gid', $qb->createNamedParameter($group->getGID())))
->andWhere($qb->expr()->eq('uid', $qb->createNamedParameter($user->getUID())))
->executeQuery();
$fetch = $result->fetch();
$result->closeCursor();
$result = !empty($fetch) ? true : false;
return $result;
}
/**
* checks if a user is a SubAdmin
* @param IUser $user
* @return bool
*/
public function isSubAdmin(IUser $user): bool {
// Check if the user is already an admin
if ($this->groupManager->isAdmin($user->getUID())) {
return true;
}
// Check if the user is already an admin
if ($this->groupManager->isDelegatedAdmin($user->getUID())) {
return true;
}
$qb = $this->dbConn->getQueryBuilder();
$result = $qb->select('gid')
->from('group_admin')
->andWhere($qb->expr()->eq('uid', $qb->createNamedParameter($user->getUID())))
->setMaxResults(1)
->executeQuery();
$isSubAdmin = $result->fetch();
$result->closeCursor();
return $isSubAdmin !== false;
}
/**
* checks if a user is a accessible by a subadmin
* @param IUser $subadmin
* @param IUser $user
* @return bool
*/
public function isUserAccessible(IUser $subadmin, IUser $user): bool {
if ($subadmin->getUID() === $user->getUID()) {
return true;
}
if (!$this->isSubAdmin($subadmin)) {
return false;
}
if ($this->groupManager->isAdmin($user->getUID())) {
return false;
}
$accessibleGroups = $this->getSubAdminsGroupIds($subadmin);
$userGroups = $this->groupManager->getUserGroupIds($user);
return !empty(array_intersect($accessibleGroups, $userGroups));
}
/**
* delete all SubAdmins by $user
* @param IUser $user
*/
private function post_deleteUser(IUser $user) {
$qb = $this->dbConn->getQueryBuilder();
$qb->delete('group_admin')
->where($qb->expr()->eq('uid', $qb->createNamedParameter($user->getUID())))
->executeStatement();
}
/**
* delete all SubAdmins by $group
* @param IGroup $group
*/
private function post_deleteGroup(IGroup $group) {
$qb = $this->dbConn->getQueryBuilder();
$qb->delete('group_admin')
->where($qb->expr()->eq('gid', $qb->createNamedParameter($group->getGID())))
->executeStatement();
}
}
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