627 lines
19 KiB
PHP
627 lines
19 KiB
PHP
<?php
|
|
/**
|
|
* @copyright Copyright (c) 2016, ownCloud, Inc.
|
|
*
|
|
* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
|
|
* @author Bart Visscher <bartv@thisnet.nl>
|
|
* @author Dominik Schmidt <dev@dominik-schmidt.de>
|
|
* @author felixboehm <felix@webhippie.de>
|
|
* @author Joas Schilling <coding@schilljs.com>
|
|
* @author Jörn Friedrich Dreyer <jfd@butonic.de>
|
|
* @author Lukas Reschke <lukas@statuscode.ch>
|
|
* @author Morris Jobke <hey@morrisjobke.de>
|
|
* @author Renaud Fortier <Renaud.Fortier@fsaa.ulaval.ca>
|
|
* @author Robin Appelman <robin@icewind.nl>
|
|
* @author Robin McCorkell <robin@mccorkell.me.uk>
|
|
* @author Roger Szabo <roger.szabo@web.de>
|
|
* @author root <root@localhost.localdomain>
|
|
* @author Thomas Müller <thomas.mueller@tmit.eu>
|
|
* @author Tom Needham <tom@owncloud.com>
|
|
* @author Victor Dubiniuk <dubiniuk@owncloud.com>
|
|
* @author Vinicius Cubas Brand <vinicius@eita.org.br>
|
|
*
|
|
* @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 <http://www.gnu.org/licenses/>
|
|
*
|
|
*/
|
|
|
|
namespace OCA\User_LDAP;
|
|
|
|
use OC\ServerNotAvailableException;
|
|
use OC\User\Backend;
|
|
use OC\User\NoUserException;
|
|
use OCA\User_LDAP\Exceptions\NotOnLDAP;
|
|
use OCA\User_LDAP\User\OfflineUser;
|
|
use OCA\User_LDAP\User\User;
|
|
use OCP\IConfig;
|
|
use OCP\ILogger;
|
|
use OCP\IUser;
|
|
use OCP\IUserSession;
|
|
use OCP\Notification\IManager as INotificationManager;
|
|
use OCP\Util;
|
|
|
|
class User_LDAP extends BackendUtility implements \OCP\IUserBackend, \OCP\UserInterface, IUserLDAP {
|
|
/** @var \OCP\IConfig */
|
|
protected $ocConfig;
|
|
|
|
/** @var INotificationManager */
|
|
protected $notificationManager;
|
|
|
|
/** @var string */
|
|
protected $currentUserInDeletionProcess;
|
|
|
|
/** @var UserPluginManager */
|
|
protected $userPluginManager;
|
|
|
|
/**
|
|
* @param Access $access
|
|
* @param \OCP\IConfig $ocConfig
|
|
* @param \OCP\Notification\IManager $notificationManager
|
|
* @param IUserSession $userSession
|
|
*/
|
|
public function __construct(Access $access, IConfig $ocConfig, INotificationManager $notificationManager, IUserSession $userSession, UserPluginManager $userPluginManager) {
|
|
parent::__construct($access);
|
|
$this->ocConfig = $ocConfig;
|
|
$this->notificationManager = $notificationManager;
|
|
$this->userPluginManager = $userPluginManager;
|
|
$this->registerHooks($userSession);
|
|
}
|
|
|
|
protected function registerHooks(IUserSession $userSession) {
|
|
$userSession->listen('\OC\User', 'preDelete', [$this, 'preDeleteUser']);
|
|
$userSession->listen('\OC\User', 'postDelete', [$this, 'postDeleteUser']);
|
|
}
|
|
|
|
public function preDeleteUser(IUser $user) {
|
|
$this->currentUserInDeletionProcess = $user->getUID();
|
|
}
|
|
|
|
public function postDeleteUser() {
|
|
$this->currentUserInDeletionProcess = null;
|
|
}
|
|
|
|
/**
|
|
* checks whether the user is allowed to change his avatar in Nextcloud
|
|
*
|
|
* @param string $uid the Nextcloud user name
|
|
* @return boolean either the user can or cannot
|
|
* @throws \Exception
|
|
*/
|
|
public function canChangeAvatar($uid) {
|
|
if ($this->userPluginManager->implementsActions(Backend::PROVIDE_AVATAR)) {
|
|
return $this->userPluginManager->canChangeAvatar($uid);
|
|
}
|
|
|
|
if(!$this->implementsActions(Backend::PROVIDE_AVATAR)) {
|
|
return true;
|
|
}
|
|
|
|
$user = $this->access->userManager->get($uid);
|
|
if(!$user instanceof User) {
|
|
return false;
|
|
}
|
|
$imageData = $user->getAvatarImage();
|
|
if($imageData === false) {
|
|
return true;
|
|
}
|
|
return !$user->updateAvatar(true);
|
|
}
|
|
|
|
/**
|
|
* Return the username for the given login name, if available
|
|
*
|
|
* @param string $loginName
|
|
* @return string|false
|
|
* @throws \Exception
|
|
*/
|
|
public function loginName2UserName($loginName) {
|
|
$cacheKey = 'loginName2UserName-' . $loginName;
|
|
$username = $this->access->connection->getFromCache($cacheKey);
|
|
|
|
if ($username !== null) {
|
|
return $username;
|
|
}
|
|
|
|
try {
|
|
$ldapRecord = $this->getLDAPUserByLoginName($loginName);
|
|
$user = $this->access->userManager->get($ldapRecord['dn'][0]);
|
|
if ($user === null || $user instanceof OfflineUser) {
|
|
// this path is not really possible, however get() is documented
|
|
// to return User, OfflineUser or null so we are very defensive here.
|
|
$this->access->connection->writeToCache($cacheKey, false);
|
|
return false;
|
|
}
|
|
$username = $user->getUsername();
|
|
$this->access->connection->writeToCache($cacheKey, $username);
|
|
return $username;
|
|
} catch (NotOnLDAP $e) {
|
|
$this->access->connection->writeToCache($cacheKey, false);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* returns the username for the given LDAP DN, if available
|
|
*
|
|
* @param string $dn
|
|
* @return string|false with the username
|
|
*/
|
|
public function dn2UserName($dn) {
|
|
return $this->access->dn2username($dn);
|
|
}
|
|
|
|
/**
|
|
* returns an LDAP record based on a given login name
|
|
*
|
|
* @param string $loginName
|
|
* @return array
|
|
* @throws NotOnLDAP
|
|
*/
|
|
public function getLDAPUserByLoginName($loginName) {
|
|
//find out dn of the user name
|
|
$attrs = $this->access->userManager->getAttributes();
|
|
$users = $this->access->fetchUsersByLoginName($loginName, $attrs);
|
|
if(count($users) < 1) {
|
|
throw new NotOnLDAP('No user available for the given login name on ' .
|
|
$this->access->connection->ldapHost . ':' . $this->access->connection->ldapPort);
|
|
}
|
|
return $users[0];
|
|
}
|
|
|
|
/**
|
|
* Check if the password is correct without logging in the user
|
|
*
|
|
* @param string $uid The username
|
|
* @param string $password The password
|
|
* @return false|string
|
|
*/
|
|
public function checkPassword($uid, $password) {
|
|
try {
|
|
$ldapRecord = $this->getLDAPUserByLoginName($uid);
|
|
} catch(NotOnLDAP $e) {
|
|
if($this->ocConfig->getSystemValue('loglevel', ILogger::WARN) === ILogger::DEBUG) {
|
|
\OC::$server->getLogger()->logException($e, ['app' => 'user_ldap']);
|
|
}
|
|
return false;
|
|
}
|
|
$dn = $ldapRecord['dn'][0];
|
|
$user = $this->access->userManager->get($dn);
|
|
|
|
if(!$user instanceof User) {
|
|
Util::writeLog('user_ldap',
|
|
'LDAP Login: Could not get user object for DN ' . $dn .
|
|
'. Maybe the LDAP entry has no set display name attribute?',
|
|
ILogger::WARN);
|
|
return false;
|
|
}
|
|
if($user->getUsername() !== false) {
|
|
//are the credentials OK?
|
|
if(!$this->access->areCredentialsValid($dn, $password)) {
|
|
return false;
|
|
}
|
|
|
|
$this->access->cacheUserExists($user->getUsername());
|
|
$user->processAttributes($ldapRecord);
|
|
$user->markLogin();
|
|
|
|
return $user->getUsername();
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Set password
|
|
* @param string $uid The username
|
|
* @param string $password The new password
|
|
* @return bool
|
|
*/
|
|
public function setPassword($uid, $password) {
|
|
if ($this->userPluginManager->implementsActions(Backend::SET_PASSWORD)) {
|
|
return $this->userPluginManager->setPassword($uid, $password);
|
|
}
|
|
|
|
$user = $this->access->userManager->get($uid);
|
|
|
|
if(!$user instanceof User) {
|
|
throw new \Exception('LDAP setPassword: Could not get user object for uid ' . $uid .
|
|
'. Maybe the LDAP entry has no set display name attribute?');
|
|
}
|
|
if($user->getUsername() !== false && $this->access->setPassword($user->getDN(), $password)) {
|
|
$ldapDefaultPPolicyDN = $this->access->connection->ldapDefaultPPolicyDN;
|
|
$turnOnPasswordChange = $this->access->connection->turnOnPasswordChange;
|
|
if (!empty($ldapDefaultPPolicyDN) && ((int)$turnOnPasswordChange === 1)) {
|
|
//remove last password expiry warning if any
|
|
$notification = $this->notificationManager->createNotification();
|
|
$notification->setApp('user_ldap')
|
|
->setUser($uid)
|
|
->setObject('pwd_exp_warn', $uid)
|
|
;
|
|
$this->notificationManager->markProcessed($notification);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Get a list of all users
|
|
*
|
|
* @param string $search
|
|
* @param integer $limit
|
|
* @param integer $offset
|
|
* @return string[] an array of all uids
|
|
*/
|
|
public function getUsers($search = '', $limit = 10, $offset = 0) {
|
|
$search = $this->access->escapeFilterPart($search, true);
|
|
$cachekey = 'getUsers-'.$search.'-'.$limit.'-'.$offset;
|
|
|
|
//check if users are cached, if so return
|
|
$ldap_users = $this->access->connection->getFromCache($cachekey);
|
|
if(!is_null($ldap_users)) {
|
|
return $ldap_users;
|
|
}
|
|
|
|
// if we'd pass -1 to LDAP search, we'd end up in a Protocol
|
|
// error. With a limit of 0, we get 0 results. So we pass null.
|
|
if($limit <= 0) {
|
|
$limit = null;
|
|
}
|
|
$filter = $this->access->combineFilterWithAnd(array(
|
|
$this->access->connection->ldapUserFilter,
|
|
$this->access->connection->ldapUserDisplayName . '=*',
|
|
$this->access->getFilterPartForUserSearch($search)
|
|
));
|
|
|
|
Util::writeLog('user_ldap',
|
|
'getUsers: Options: search '.$search.' limit '.$limit.' offset '.$offset.' Filter: '.$filter,
|
|
ILogger::DEBUG);
|
|
//do the search and translate results to Nextcloud names
|
|
$ldap_users = $this->access->fetchListOfUsers(
|
|
$filter,
|
|
$this->access->userManager->getAttributes(true),
|
|
$limit, $offset);
|
|
$ldap_users = $this->access->nextcloudUserNames($ldap_users);
|
|
Util::writeLog('user_ldap', 'getUsers: '.count($ldap_users). ' Users found', ILogger::DEBUG);
|
|
|
|
$this->access->connection->writeToCache($cachekey, $ldap_users);
|
|
return $ldap_users;
|
|
}
|
|
|
|
/**
|
|
* checks whether a user is still available on LDAP
|
|
*
|
|
* @param string|\OCA\User_LDAP\User\User $user either the Nextcloud user
|
|
* name or an instance of that user
|
|
* @return bool
|
|
* @throws \Exception
|
|
* @throws \OC\ServerNotAvailableException
|
|
*/
|
|
public function userExistsOnLDAP($user) {
|
|
if(is_string($user)) {
|
|
$user = $this->access->userManager->get($user);
|
|
}
|
|
if(is_null($user)) {
|
|
return false;
|
|
}
|
|
|
|
$dn = $user->getDN();
|
|
//check if user really still exists by reading its entry
|
|
if(!is_array($this->access->readAttribute($dn, '', $this->access->connection->ldapUserFilter))) {
|
|
try {
|
|
$uuid = $this->access->getUserMapper()->getUUIDByDN($dn);
|
|
if (!$uuid) {
|
|
return false;
|
|
}
|
|
$newDn = $this->access->getUserDnByUuid($uuid);
|
|
//check if renamed user is still valid by reapplying the ldap filter
|
|
if ($newDn === $dn || !is_array($this->access->readAttribute($newDn, '', $this->access->connection->ldapUserFilter))) {
|
|
return false;
|
|
}
|
|
$this->access->getUserMapper()->setDNbyUUID($newDn, $uuid);
|
|
return true;
|
|
} catch (ServerNotAvailableException $e) {
|
|
throw $e;
|
|
} catch (\Exception $e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if($user instanceof OfflineUser) {
|
|
$user->unmark();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* check if a user exists
|
|
* @param string $uid the username
|
|
* @return boolean
|
|
* @throws \Exception when connection could not be established
|
|
*/
|
|
public function userExists($uid) {
|
|
$userExists = $this->access->connection->getFromCache('userExists'.$uid);
|
|
if(!is_null($userExists)) {
|
|
return (bool)$userExists;
|
|
}
|
|
//getting dn, if false the user does not exist. If dn, he may be mapped only, requires more checking.
|
|
$user = $this->access->userManager->get($uid);
|
|
|
|
if(is_null($user)) {
|
|
Util::writeLog('user_ldap', 'No DN found for '.$uid.' on '.
|
|
$this->access->connection->ldapHost, ILogger::DEBUG);
|
|
$this->access->connection->writeToCache('userExists'.$uid, false);
|
|
return false;
|
|
} else if($user instanceof OfflineUser) {
|
|
//express check for users marked as deleted. Returning true is
|
|
//necessary for cleanup
|
|
return true;
|
|
}
|
|
|
|
$result = $this->userExistsOnLDAP($user);
|
|
$this->access->connection->writeToCache('userExists'.$uid, $result);
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* returns whether a user was deleted in LDAP
|
|
*
|
|
* @param string $uid The username of the user to delete
|
|
* @return bool
|
|
*/
|
|
public function deleteUser($uid) {
|
|
if ($this->userPluginManager->canDeleteUser()) {
|
|
return $this->userPluginManager->deleteUser($uid);
|
|
}
|
|
|
|
$marked = $this->ocConfig->getUserValue($uid, 'user_ldap', 'isDeleted', 0);
|
|
if((int)$marked === 0) {
|
|
\OC::$server->getLogger()->notice(
|
|
'User '.$uid . ' is not marked as deleted, not cleaning up.',
|
|
array('app' => 'user_ldap'));
|
|
return false;
|
|
}
|
|
\OC::$server->getLogger()->info('Cleaning up after user ' . $uid,
|
|
array('app' => 'user_ldap'));
|
|
|
|
$this->access->getUserMapper()->unmap($uid); // we don't emit unassign signals here, since it is implicit to delete signals fired from core
|
|
$this->access->userManager->invalidate($uid);
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* get the user's home directory
|
|
*
|
|
* @param string $uid the username
|
|
* @return bool|string
|
|
* @throws NoUserException
|
|
* @throws \Exception
|
|
*/
|
|
public function getHome($uid) {
|
|
// user Exists check required as it is not done in user proxy!
|
|
if(!$this->userExists($uid)) {
|
|
return false;
|
|
}
|
|
|
|
if ($this->userPluginManager->implementsActions(Backend::GET_HOME)) {
|
|
return $this->userPluginManager->getHome($uid);
|
|
}
|
|
|
|
$cacheKey = 'getHome'.$uid;
|
|
$path = $this->access->connection->getFromCache($cacheKey);
|
|
if(!is_null($path)) {
|
|
return $path;
|
|
}
|
|
|
|
// early return path if it is a deleted user
|
|
$user = $this->access->userManager->get($uid);
|
|
if($user instanceof OfflineUser) {
|
|
if($this->currentUserInDeletionProcess !== null
|
|
&& $this->currentUserInDeletionProcess === $user->getOCName()
|
|
) {
|
|
return $user->getHomePath();
|
|
} else {
|
|
throw new NoUserException($uid . ' is not a valid user anymore');
|
|
}
|
|
} else if ($user === null) {
|
|
throw new NoUserException($uid . ' is not a valid user anymore');
|
|
}
|
|
|
|
$path = $user->getHomePath();
|
|
$this->access->cacheUserHome($uid, $path);
|
|
|
|
return $path;
|
|
}
|
|
|
|
/**
|
|
* get display name of the user
|
|
* @param string $uid user ID of the user
|
|
* @return string|false display name
|
|
*/
|
|
public function getDisplayName($uid) {
|
|
if ($this->userPluginManager->implementsActions(Backend::GET_DISPLAYNAME)) {
|
|
return $this->userPluginManager->getDisplayName($uid);
|
|
}
|
|
|
|
if(!$this->userExists($uid)) {
|
|
return false;
|
|
}
|
|
|
|
$cacheKey = 'getDisplayName'.$uid;
|
|
if(!is_null($displayName = $this->access->connection->getFromCache($cacheKey))) {
|
|
return $displayName;
|
|
}
|
|
|
|
//Check whether the display name is configured to have a 2nd feature
|
|
$additionalAttribute = $this->access->connection->ldapUserDisplayName2;
|
|
$displayName2 = '';
|
|
if ($additionalAttribute !== '') {
|
|
$displayName2 = $this->access->readAttribute(
|
|
$this->access->username2dn($uid),
|
|
$additionalAttribute);
|
|
}
|
|
|
|
$displayName = $this->access->readAttribute(
|
|
$this->access->username2dn($uid),
|
|
$this->access->connection->ldapUserDisplayName);
|
|
|
|
if($displayName && (count($displayName) > 0)) {
|
|
$displayName = $displayName[0];
|
|
|
|
if (is_array($displayName2)){
|
|
$displayName2 = count($displayName2) > 0 ? $displayName2[0] : '';
|
|
}
|
|
|
|
$user = $this->access->userManager->get($uid);
|
|
if ($user instanceof User) {
|
|
$displayName = $user->composeAndStoreDisplayName($displayName, $displayName2);
|
|
$this->access->connection->writeToCache($cacheKey, $displayName);
|
|
}
|
|
if ($user instanceof OfflineUser) {
|
|
/** @var OfflineUser $user*/
|
|
$displayName = $user->getDisplayName();
|
|
}
|
|
return $displayName;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* set display name of the user
|
|
* @param string $uid user ID of the user
|
|
* @param string $displayName new display name of the user
|
|
* @return string|false display name
|
|
*/
|
|
public function setDisplayName($uid, $displayName) {
|
|
if ($this->userPluginManager->implementsActions(Backend::SET_DISPLAYNAME)) {
|
|
return $this->userPluginManager->setDisplayName($uid, $displayName);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Get a list of all display names
|
|
*
|
|
* @param string $search
|
|
* @param string|null $limit
|
|
* @param string|null $offset
|
|
* @return array an array of all displayNames (value) and the corresponding uids (key)
|
|
*/
|
|
public function getDisplayNames($search = '', $limit = null, $offset = null) {
|
|
$cacheKey = 'getDisplayNames-'.$search.'-'.$limit.'-'.$offset;
|
|
if(!is_null($displayNames = $this->access->connection->getFromCache($cacheKey))) {
|
|
return $displayNames;
|
|
}
|
|
|
|
$displayNames = array();
|
|
$users = $this->getUsers($search, $limit, $offset);
|
|
foreach ($users as $user) {
|
|
$displayNames[$user] = $this->getDisplayName($user);
|
|
}
|
|
$this->access->connection->writeToCache($cacheKey, $displayNames);
|
|
return $displayNames;
|
|
}
|
|
|
|
/**
|
|
* Check if backend implements actions
|
|
* @param int $actions bitwise-or'ed actions
|
|
* @return boolean
|
|
*
|
|
* Returns the supported actions as int to be
|
|
* compared with \OC\User\Backend::CREATE_USER etc.
|
|
*/
|
|
public function implementsActions($actions) {
|
|
return (bool)((Backend::CHECK_PASSWORD
|
|
| Backend::GET_HOME
|
|
| Backend::GET_DISPLAYNAME
|
|
| (($this->access->connection->ldapUserAvatarRule !== 'none') ? Backend::PROVIDE_AVATAR : 0)
|
|
| Backend::COUNT_USERS
|
|
| (((int)$this->access->connection->turnOnPasswordChange === 1)? Backend::SET_PASSWORD :0)
|
|
| $this->userPluginManager->getImplementedActions())
|
|
& $actions);
|
|
}
|
|
|
|
/**
|
|
* @return bool
|
|
*/
|
|
public function hasUserListings() {
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* counts the users in LDAP
|
|
*
|
|
* @return int|bool
|
|
*/
|
|
public function countUsers() {
|
|
if ($this->userPluginManager->implementsActions(Backend::COUNT_USERS)) {
|
|
return $this->userPluginManager->countUsers();
|
|
}
|
|
|
|
$filter = $this->access->getFilterForUserCount();
|
|
$cacheKey = 'countUsers-'.$filter;
|
|
if(!is_null($entries = $this->access->connection->getFromCache($cacheKey))) {
|
|
return $entries;
|
|
}
|
|
$entries = $this->access->countUsers($filter);
|
|
$this->access->connection->writeToCache($cacheKey, $entries);
|
|
return $entries;
|
|
}
|
|
|
|
/**
|
|
* Backend name to be shown in user management
|
|
* @return string the name of the backend to be shown
|
|
*/
|
|
public function getBackendName(){
|
|
return 'LDAP';
|
|
}
|
|
|
|
/**
|
|
* Return access for LDAP interaction.
|
|
* @param string $uid
|
|
* @return Access instance of Access for LDAP interaction
|
|
*/
|
|
public function getLDAPAccess($uid) {
|
|
return $this->access;
|
|
}
|
|
|
|
/**
|
|
* Return LDAP connection resource from a cloned connection.
|
|
* The cloned connection needs to be closed manually.
|
|
* of the current access.
|
|
* @param string $uid
|
|
* @return resource of the LDAP connection
|
|
*/
|
|
public function getNewLDAPConnection($uid) {
|
|
$connection = clone $this->access->getConnection();
|
|
return $connection->getConnectionResource();
|
|
}
|
|
|
|
/**
|
|
* create new user
|
|
* @param string $username username of the new user
|
|
* @param string $password password of the new user
|
|
* @return bool was the user created?
|
|
*/
|
|
public function createUser($username, $password) {
|
|
if ($this->userPluginManager->implementsActions(Backend::CREATE_USER)) {
|
|
return $this->userPluginManager->createUser($username, $password);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
}
|