397 lines
12 KiB
PHP
397 lines
12 KiB
PHP
<?php
|
|
/**
|
|
* @author Andreas Fischer <bantu@owncloud.com>
|
|
* @author Arthur Schiwon <blizzz@owncloud.com>
|
|
* @author Bart Visscher <bartv@thisnet.nl>
|
|
* @author Christopher Schäpers <kondou@ts.unde.re>
|
|
* @author Dominik Schmidt <dev@dominik-schmidt.de>
|
|
* @author Jörn Friedrich Dreyer <jfd@butonic.de>
|
|
* @author Morris Jobke <hey@morrisjobke.de>
|
|
* @author Robin Appelman <icewind@owncloud.com>
|
|
* @author Robin McCorkell <rmccorkell@karoshi.org.uk>
|
|
* @author Thomas Müller <thomas.mueller@tmit.eu>
|
|
* @author Tom Needham <tom@owncloud.com>
|
|
*
|
|
* @copyright Copyright (c) 2015, ownCloud, Inc.
|
|
* @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 OCA\user_ldap\lib\BackendUtility;
|
|
use OCA\user_ldap\lib\Access;
|
|
use OCA\user_ldap\lib\user\OfflineUser;
|
|
use OCA\User_LDAP\lib\User\User;
|
|
use OCP\IConfig;
|
|
|
|
class USER_LDAP extends BackendUtility implements \OCP\IUserBackend, \OCP\UserInterface {
|
|
/** @var string[] $homesToKill */
|
|
protected $homesToKill = array();
|
|
|
|
/** @var \OCP\IConfig */
|
|
protected $ocConfig;
|
|
|
|
/**
|
|
* @param \OCA\user_ldap\lib\Access $access
|
|
* @param \OCP\IConfig $ocConfig
|
|
*/
|
|
public function __construct(Access $access, IConfig $ocConfig) {
|
|
parent::__construct($access);
|
|
$this->ocConfig = $ocConfig;
|
|
}
|
|
|
|
/**
|
|
* checks whether the user is allowed to change his avatar in ownCloud
|
|
* @param string $uid the ownCloud user name
|
|
* @return boolean either the user can or cannot
|
|
*/
|
|
public function canChangeAvatar($uid) {
|
|
$user = $this->access->userManager->get($uid);
|
|
if(!$user instanceof User) {
|
|
return false;
|
|
}
|
|
if($user->getAvatarImage() === false) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Check if the password is correct
|
|
* @param string $uid The username
|
|
* @param string $password The password
|
|
* @return false|string
|
|
*
|
|
* Check if the password is correct without logging in the user
|
|
*/
|
|
public function checkPassword($uid, $password) {
|
|
//find out dn of the user name
|
|
$attrs = array($this->access->connection->ldapUserDisplayName, 'dn',
|
|
'uid', 'samaccountname');
|
|
$users = $this->access->fetchUsersByLoginName($uid, $attrs);
|
|
if(count($users) < 1) {
|
|
return false;
|
|
}
|
|
$dn = $users[0]['dn'];
|
|
$user = $this->access->userManager->get($dn);
|
|
if(!$user instanceof User) {
|
|
\OCP\Util::writeLog('user_ldap',
|
|
'LDAP Login: Could not get user object for DN ' . $dn .
|
|
'. Maybe the LDAP entry has no set display name attribute?',
|
|
\OCP\Util::WARN);
|
|
return false;
|
|
}
|
|
if($user->getUsername() !== false) {
|
|
//are the credentials OK?
|
|
if(!$this->access->areCredentialsValid($dn, $password)) {
|
|
return false;
|
|
}
|
|
|
|
$user->markLogin();
|
|
if(isset($users[0][$this->access->connection->ldapUserDisplayName])) {
|
|
$dpn = $users[0][$this->access->connection->ldapUserDisplayName];
|
|
$user->storeDisplayName($dpn);
|
|
}
|
|
if(isset($users[0]['uid'])) {
|
|
$user->storeLDAPUserName($users[0]['uid']);
|
|
} else if(isset($users[0]['samaccountname'])) {
|
|
$user->storeLDAPUserName($users[0]['samaccountname']);
|
|
}
|
|
|
|
return $user->getUsername();
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Get a list of all users
|
|
* @return string[] with all uids
|
|
*
|
|
* Get a list of all users.
|
|
*/
|
|
public function getUsers($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,
|
|
$this->access->getFilterPartForUserSearch($search)
|
|
));
|
|
|
|
\OCP\Util::writeLog('user_ldap',
|
|
'getUsers: Options: search '.$search.' limit '.$limit.' offset '.$offset.' Filter: '.$filter,
|
|
\OCP\Util::DEBUG);
|
|
//do the search and translate results to owncloud names
|
|
$ldap_users = $this->access->fetchListOfUsers(
|
|
$filter,
|
|
array($this->access->connection->ldapUserDisplayName, 'dn'),
|
|
$limit, $offset);
|
|
$ldap_users = $this->access->ownCloudUserNames($ldap_users);
|
|
\OCP\Util::writeLog('user_ldap', 'getUsers: '.count($ldap_users). ' Users found', \OCP\Util::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\lib\user\User $user either the ownCloud user
|
|
* name or an instance of that user
|
|
* @return bool
|
|
*/
|
|
public function userExistsOnLDAP($user) {
|
|
if(is_string($user)) {
|
|
$user = $this->access->userManager->get($user);
|
|
}
|
|
if(!$user instanceof User) {
|
|
return false;
|
|
}
|
|
|
|
$dn = $user->getDN();
|
|
//check if user really still exists by reading its entry
|
|
if(!is_array($this->access->readAttribute($dn, ''))) {
|
|
$lcr = $this->access->connection->getConnectionResource();
|
|
if(is_null($lcr)) {
|
|
throw new \Exception('No LDAP Connection to server ' . $this->access->connection->ldapHost);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
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) {
|
|
if($this->access->connection->isCached('userExists'.$uid)) {
|
|
return $this->access->connection->getFromCache('userExists'.$uid);
|
|
}
|
|
//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($user)) {
|
|
\OCP\Util::writeLog('user_ldap', 'No DN found for '.$uid.' on '.
|
|
$this->access->connection->ldapHost, \OCP\Util::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, $result);
|
|
if($result === true) {
|
|
$user->update();
|
|
}
|
|
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) {
|
|
$marked = $this->ocConfig->getUserValue($uid, 'user_ldap', 'isDeleted', 0);
|
|
if(intval($marked) === 0) {
|
|
\OC::$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'));
|
|
|
|
//Get Home Directory out of user preferences so we can return it later,
|
|
//necessary for removing directories as done by OC_User.
|
|
$home = $this->ocConfig->getUserValue($uid, 'user_ldap', 'homePath', '');
|
|
$this->homesToKill[$uid] = $home;
|
|
$this->access->getUserMapper()->unmap($uid);
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* get the user's home directory
|
|
* @param string $uid the username
|
|
* @return string|bool
|
|
*/
|
|
public function getHome($uid) {
|
|
// user Exists check required as it is not done in user proxy!
|
|
if(!$this->userExists($uid)) {
|
|
return false;
|
|
}
|
|
|
|
if(isset($this->homesToKill[$uid]) && !empty($this->homesToKill[$uid])) {
|
|
//a deleted user who needs some clean up
|
|
return $this->homesToKill[$uid];
|
|
}
|
|
|
|
$cacheKey = 'getHome'.$uid;
|
|
if($this->access->connection->isCached($cacheKey)) {
|
|
return $this->access->connection->getFromCache($cacheKey);
|
|
}
|
|
if(strpos($this->access->connection->homeFolderNamingRule, 'attr:') === 0) {
|
|
$attr = substr($this->access->connection->homeFolderNamingRule, strlen('attr:'));
|
|
$homedir = $this->access->readAttribute(
|
|
$this->access->username2dn($uid), $attr);
|
|
if($homedir && isset($homedir[0])) {
|
|
$path = $homedir[0];
|
|
//if attribute's value is an absolute path take this, otherwise append it to data dir
|
|
//check for / at the beginning or pattern c:\ resp. c:/
|
|
if(
|
|
'/' === $path[0]
|
|
|| (3 < strlen($path) && ctype_alpha($path[0])
|
|
&& $path[1] === ':' && ('\\' === $path[2] || '/' === $path[2]))
|
|
) {
|
|
$homedir = $path;
|
|
} else {
|
|
$homedir = $this->ocConfig->getSystemValue('datadirectory',
|
|
\OC::$SERVERROOT.'/data' ) . '/' . $homedir[0];
|
|
}
|
|
$this->access->connection->writeToCache($cacheKey, $homedir);
|
|
//we need it to store it in the DB as well in case a user gets
|
|
//deleted so we can clean up afterwards
|
|
$this->ocConfig->setUserValue(
|
|
$uid, 'user_ldap', 'homePath', $homedir
|
|
);
|
|
//TODO: if home directory changes, the old one needs to be removed.
|
|
return $homedir;
|
|
}
|
|
}
|
|
|
|
//false will apply default behaviour as defined and done by OC_User
|
|
$this->access->connection->writeToCache($cacheKey, false);
|
|
$this->ocConfig->setUserValue($uid, 'user_ldap', 'homePath', '');
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* get display name of the user
|
|
* @param string $uid user ID of the user
|
|
* @return string|false display name
|
|
*/
|
|
public function getDisplayName($uid) {
|
|
if(!$this->userExists($uid)) {
|
|
return false;
|
|
}
|
|
|
|
$cacheKey = 'getDisplayName'.$uid;
|
|
if(!is_null($displayName = $this->access->connection->getFromCache($cacheKey))) {
|
|
return $displayName;
|
|
}
|
|
|
|
$displayName = $this->access->readAttribute(
|
|
$this->access->username2dn($uid),
|
|
$this->access->connection->ldapUserDisplayName);
|
|
|
|
if($displayName && (count($displayName) > 0)) {
|
|
$this->access->connection->writeToCache($cacheKey, $displayName[0]);
|
|
return $displayName[0];
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Get a list of all display names
|
|
* @return array with all displayNames (value) and the correspondig uids (key)
|
|
*
|
|
* Get a list of all display names and user ids.
|
|
*/
|
|
public function getDisplayNames($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)((\OC_User_Backend::CHECK_PASSWORD
|
|
| \OC_User_Backend::GET_HOME
|
|
| \OC_User_Backend::GET_DISPLAYNAME
|
|
| \OC_User_Backend::PROVIDE_AVATAR
|
|
| \OC_User_Backend::COUNT_USERS)
|
|
& $actions);
|
|
}
|
|
|
|
/**
|
|
* @return bool
|
|
*/
|
|
public function hasUserListings() {
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* counts the users in LDAP
|
|
*
|
|
* @return int|bool
|
|
*/
|
|
public function 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';
|
|
}
|
|
|
|
}
|