* @author Bart Visscher * @author Christoph Wurst * @author Georg Ehrke * @author Joas Schilling * @author John Molakvoæ (skjnldsv) * @author Lukas Reschke * @author Mikael Hammarin * @author Morris Jobke * @author Roeland Jago Douma * * @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 * */ 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 { /** @var IUserManager */ private $userManager; /** @var IGroupManager */ private $groupManager; /** @var IDBConnection */ private $dbConn; /** @var IEventDispatcher */ private $eventDispatcher; /** * @param IUserManager $userManager * @param IGroupManager $groupManager * @param IDBConnection $dbConn */ public function __construct(IUserManager $userManager, IGroupManager $groupManager, IDBConnection $dbConn, IEventDispatcher $eventDispatcher) { $this->userManager = $userManager; $this->groupManager = $groupManager; $this->dbConn = $dbConn; $this->eventDispatcher = $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()) ]) ->execute(); /** @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()))) ->execute(); /** @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()))) ->execute(); $groups = []; while ($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()))) ->execute(); $users = []; while ($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') ->execute(); $subadmins = []; while ($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()))) ->execute(); $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; } $qb = $this->dbConn->getQueryBuilder(); $result = $qb->select('gid') ->from('group_admin') ->andWhere($qb->expr()->eq('uid', $qb->createNamedParameter($user->getUID()))) ->setMaxResults(1) ->execute(); $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 $user): bool { if (!$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()))) ->execute(); } /** * 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()))) ->execute(); } } /stable29-update-psalm-baseline Nextcloud server, a safe home for all your data: https://github.com/nextcloud/serverwww-data
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