server/apps/user_ldap/user_ldap.php
Arthur Schiwon 3338a0f236 port of #9500
don't trigger update from checkPassword, it is already  called by userExists, this is enough.

do not write to database when the value is the same

add test cases. also split test classes in a file each, looks like only the first class is being executed

also appconfig shall not write to database if the value is unchanged
2014-07-08 16:32:01 +02:00

292 lines
8.4 KiB
PHP

<?php
/**
* ownCloud
*
* @author Dominik Schmidt
* @author Artuhr Schiwon
* @copyright 2011 Dominik Schmidt dev@dominik-schmidt.de
* @copyright 2012 Arthur Schiwon blizzz@owncloud.com
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library 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 along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OCA\user_ldap;
use OCA\user_ldap\lib\BackendUtility;
class USER_LDAP extends BackendUtility implements \OCP\UserInterface {
/**
* 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(is_null($user)) {
return false;
}
if($user->getAvatarImage() === false) {
return true;
}
return false;
}
/**
* Check if the password is correct
* @param string $uid The username
* @param string $password The password
* @return boolean
*
* Check if the password is correct without logging in the user
*/
public function checkPassword($uid, $password) {
$uid = $this->access->escapeFilterPart($uid);
//find out dn of the user name
$filter = \OCP\Util::mb_str_replace(
'%uid', $uid, $this->access->connection->ldapLoginFilter, 'UTF-8');
$ldap_users = $this->access->fetchListOfUsers($filter, 'dn');
if(count($ldap_users) < 1) {
return false;
}
$dn = $ldap_users[0];
$user = $this->access->userManager->get($dn);
if($user->getUsername() !== false) {
//are the credentials OK?
if(!$this->access->areCredentialsValid($dn, $password)) {
return false;
}
$user->markLogin();
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);
$cachekey = 'getUsers-'.$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;
}
/**
* check if a user exists
* @param string $uid the username
* @return boolean
*/
public function userExists($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;
}
$dn = $user->getDN();
//check if user really still exists by reading its entry
if(!is_array($this->access->readAttribute($dn, ''))) {
\OCP\Util::writeLog('user_ldap', 'LDAP says no user '.$dn.' on '.
$this->access->connection->ldapHost, \OCP\Util::DEBUG);
$this->access->connection->writeToCache('userExists'.$uid, false);
return false;
}
$this->access->connection->writeToCache('userExists'.$uid, true);
$user->update();
return true;
}
/**
* delete a user
* @param string $uid The username of the user to delete
* @return bool
*
* Deletes a user
*/
public function deleteUser($uid) {
return false;
}
/**
* get the user's home directory
* @param string $uid the username
* @return boolean
*/
public function getHome($uid) {
// user Exists check required as it is not done in user proxy!
if(!$this->userExists($uid)) {
return false;
}
$cacheKey = 'getHome'.$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 {
$homedir = \OCP\Config::getSystemValue('datadirectory',
\OC::$SERVERROOT.'/data' ) . '/' . $homedir[0];
}
$this->access->connection->writeToCache($cacheKey, $homedir);
return $homedir;
}
}
//false will apply default behaviour as defined and done by OC_User
$this->access->connection->writeToCache($cacheKey, false);
return false;
}
/**
* get display name of the user
* @param string $uid user ID of the user
* @return string display name
*/
public function getDisplayName($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 = \OCP\Util::mb_str_replace(
'%uid', '*', $this->access->connection->ldapLoginFilter, 'UTF-8');
$entries = $this->access->countUsers($filter);
return $entries;
}
}