nextcloud/apps/user_ldap/user_ldap.php

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<?php
/**
* ownCloud
*
* @author Dominik Schmidt
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* @author Artuhr Schiwon
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* @copyright 2011 Dominik Schmidt dev@dominik-schmidt.de
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* @copyright 2012 Arthur Schiwon blizzz@owncloud.com
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*
* 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;
class USER_LDAP extends lib\Access implements \OCP\UserInterface {
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private function updateQuota($dn) {
$quota = null;
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$quotaDefault = $this->connection->ldapQuotaDefault;
$quotaAttribute = $this->connection->ldapQuotaAttribute;
if(!empty($quotaDefault)) {
$quota = $quotaDefault;
}
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if(!empty($quotaAttribute)) {
$aQuota = $this->readAttribute($dn, $quotaAttribute);
if($aQuota && (count($aQuota) > 0)) {
$quota = $aQuota[0];
}
}
if(!is_null($quota)) {
\OCP\Config::setUserValue($this->dn2username($dn), 'files', 'quota', \OCP\Util::computerFileSize($quota));
}
}
private function updateEmail($dn) {
$email = null;
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$emailAttribute = $this->connection->ldapEmailAttribute;
if(!empty($emailAttribute)) {
$aEmail = $this->readAttribute($dn, $emailAttribute);
if($aEmail && (count($aEmail) > 0)) {
$email = $aEmail[0];
}
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if(!is_null($email)) {
\OCP\Config::setUserValue($this->dn2username($dn), 'settings', 'email', $email);
}
}
}
/**
* @brief Check if the password is correct
* @param $uid The username
* @param $password The password
* @returns true/false
*
* Check if the password is correct without logging in the user
*/
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public function checkPassword($uid, $password) {
//find out dn of the user name
$filter = \OCP\Util::mb_str_replace('%uid', $uid, $this->connection->ldapLoginFilter, 'UTF-8');
$ldap_users = $this->fetchListOfUsers($filter, 'dn');
if(count($ldap_users) < 1) {
return false;
}
$dn = $ldap_users[0];
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//do we have a username for him/her?
$ocname = $this->dn2username($dn);
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if($ocname) {
//update some settings, if necessary
$this->updateQuota($dn);
$this->updateEmail($dn);
//are the credentials OK?
if(!$this->areCredentialsValid($dn, $password)) {
return false;
}
//give back the display name
return $ocname;
}
return false;
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}
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/**
* @brief Get a list of all users
* @returns array with all uids
*
* Get a list of all users.
*/
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public function getUsers($search = '', $limit = 10, $offset = 0) {
$cachekey = 'getUsers-'.$search.'-'.$limit.'-'.$offset;
//check if users are cached, if so return
$ldap_users = $this->connection->getFromCache($cachekey);
if(!is_null($ldap_users)) {
return $ldap_users;
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}
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// if we'd pass -1 to LDAP search, we'd end up in a Protocol
// error. With a limit of 0, we get 0 results. So we pass null.
if($limit <= 0) {
$limit = null;
}
$filter = $this->combineFilterWithAnd(array(
$this->connection->ldapUserFilter,
$this->getFilterPartForUserSearch($search)
));
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\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
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$ldap_users = $this->fetchListOfUsers($filter, array($this->connection->ldapUserDisplayName, 'dn'),
$limit, $offset);
$ldap_users = $this->ownCloudUserNames($ldap_users);
\OCP\Util::writeLog('user_ldap', 'getUsers: '.count($ldap_users). ' Users found', \OCP\Util::DEBUG);
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$this->connection->writeToCache($cachekey, $ldap_users);
return $ldap_users;
}
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/**
* @brief check if a user exists
* @param string $uid the username
* @return boolean
*/
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public function userExists($uid) {
if($this->connection->isCached('userExists'.$uid)) {
return $this->connection->getFromCache('userExists'.$uid);
}
//getting dn, if false the user does not exist. If dn, he may be mapped only, requires more checking.
$dn = $this->username2dn($uid);
if(!$dn) {
$this->connection->writeToCache('userExists'.$uid, false);
return false;
}
//check if user really still exists by reading its entry
if(!is_array($this->readAttribute($dn, ''))) {
$this->connection->writeToCache('userExists'.$uid, false);
return false;
}
$this->connection->writeToCache('userExists'.$uid, true);
$this->updateQuota($dn);
return true;
}
/**
* @brief delete a user
* @param $uid The username of the user to delete
* @returns true/false
*
* Deletes a user
*/
public function deleteUser($uid) {
return false;
}
/**
* @brief 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($this->connection->isCached($cacheKey)) {
return $this->connection->getFromCache($cacheKey);
}
if(strpos($this->connection->homeFolderNamingRule, 'attr:') === 0) {
$attr = substr($this->connection->homeFolderNamingRule, strlen('attr:'));
$homedir = $this->readAttribute($this->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(
'/' === $path[0]
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|| (3 < strlen($path) && ctype_alpha($path[0])
&& $path[1] === ':' && ('\\' === $path[2] || '/' === $path[2]))
) {
$homedir = $path;
} else {
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$homedir = \OCP\Config::getSystemValue('datadirectory',
\OC::$SERVERROOT.'/data' ) . '/' . $homedir[0];
}
$this->connection->writeToCache($cacheKey, $homedir);
return $homedir;
}
}
//false will apply default behaviour as defined and done by OC_User
$this->connection->writeToCache($cacheKey, false);
return false;
}
/**
* @brief get display name of the user
* @param $uid user ID of the user
* @return display name
*/
public function getDisplayName($uid) {
if(!$this->userExists($uid)) {
return false;
}
$cacheKey = 'getDisplayName'.$uid;
if(!is_null($displayName = $this->connection->getFromCache($cacheKey))) {
return $displayName;
}
$displayName = $this->readAttribute(
$this->username2dn($uid),
$this->connection->ldapUserDisplayName);
if($displayName && (count($displayName) > 0)) {
$this->connection->writeToCache($cacheKey, $displayName[0]);
return $displayName[0];
}
return null;
}
/**
* @brief Get a list of all display names
* @returns array with all displayNames (value) and the correspondig uids (key)
*
* Get a list of all display names and user ids.
*/
public function getDisplayNames($search = '', $limit = null, $offset = null) {
$cacheKey = 'getDisplayNames-'.$search.'-'.$limit.'-'.$offset;
if(!is_null($displayNames = $this->connection->getFromCache($cacheKey))) {
return $displayNames;
}
$displayNames = array();
$users = $this->getUsers($search, $limit, $offset);
foreach ($users as $user) {
$displayNames[$user] = $this->getDisplayName($user);
}
$this->connection->writeToCache($cacheKey, $displayNames);
return $displayNames;
}
/**
* @brief Check if backend implements actions
* @param $actions bitwise-or'ed actions
* @returns boolean
*
* Returns the supported actions as int to be
* compared with OC_USER_BACKEND_CREATE_USER etc.
*/
public function implementsActions($actions) {
return (bool)((OC_USER_BACKEND_CHECK_PASSWORD
| OC_USER_BACKEND_GET_HOME
| OC_USER_BACKEND_GET_DISPLAYNAME)
& $actions);
}
/**
* @return bool
*/
public function hasUserListings() {
return true;
}
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}