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<?php
/**
* ownCloud
*
* @author Dominik Schmidt
* @copyright 2011 Dominik Schmidt dev@dominik-schmidt.de
*
* 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/>.
*
*/
class OC_USER_LDAP extends OC_User_Backend {
protected $ds;
protected $configured = false;
// cached settings
protected $ldap_host;
protected $ldap_port;
protected $ldap_dn;
protected $ldap_password;
protected $ldap_base;
protected $ldap_login_filter;
protected $ldap_userlist_filter;
protected $ldap_tls;
protected $ldap_nocase;
protected $ldap_display_name;
protected $ldap_quota;
protected $ldap_quota_def;
protected $ldap_email;
// will be retrieved from LDAP server
protected $ldap_dc = false;
function __construct() {
$this->ldap_host = OC_Appconfig::getValue('user_ldap', 'ldap_host','');
$this->ldap_port = OC_Appconfig::getValue('user_ldap', 'ldap_port', OC_USER_BACKEND_LDAP_DEFAULT_PORT );
$this->ldap_dn = OC_Appconfig::getValue('user_ldap', 'ldap_dn','');
$this->ldap_password = OC_Appconfig::getValue('user_ldap', 'ldap_password','');
$this->ldap_base = OC_Appconfig::getValue('user_ldap', 'ldap_base','');
$this->ldap_login_filter = OC_Appconfig::getValue('user_ldap', 'ldap_login_filter','');
$this->ldap_userlist_filter = OC_Appconfig::getValue('user_ldap', 'ldap_userlist_filter','objectClass=person');
$this->ldap_tls = OC_Appconfig::getValue('user_ldap', 'ldap_tls', 0);
$this->ldap_nocase = OC_Appconfig::getValue('user_ldap', 'ldap_nocase', 0);
$this->ldap_display_name = OC_Appconfig::getValue('user_ldap', 'ldap_display_name', OC_USER_BACKEND_LDAP_DEFAULT_DISPLAY_NAME);
$this->ldap_quota_attr = OC_Appconfig::getValue('user_ldap', 'ldap_quota_attr','');
$this->ldap_quota_def = OC_Appconfig::getValue('user_ldap', 'ldap_quota_def','');
$this->ldap_email_attr = OC_Appconfig::getValue('user_ldap', 'ldap_email_attr','');
if( !empty($this->ldap_host)
&& !empty($this->ldap_port)
&& ((!empty($this->ldap_dn) && !empty($this->ldap_password)) || (empty($this->ldap_dn) && empty($this->ldap_password)))
&& !empty($this->ldap_base)
&& !empty($this->ldap_login_filter)
&& !empty($this->ldap_display_name)
)
{
$this->configured = true;
}
}
function __destruct() {
// close the connection
if( $this->ds )
ldap_unbind($this->ds);
}
private function setQuota( $uid ) {
if( !$this->ldap_dc )
return false;
$quota = $this->ldap_dc[$this->ldap_quota_attr][0];
$quota = $quota != -1 ? $quota : $this->ldap_quota_def;
OC_Preferences::setValue($uid, 'files', 'quota', $quota);
}
private function setEmail( $uid ) {
if( !$this->ldap_dc )
return false;
$email = OC_Preferences::getValue($uid, 'settings', 'email', '');
if ( !empty( $email ) )
return false;
$email = $this->ldap_dc[$this->ldap_email_attr][0];
OC_Preferences::setValue($uid, 'settings', 'email', $email);
}
//Connect to LDAP and store the resource
private function getDs() {
if(!$this->ds) {
$this->ds = ldap_connect( $this->ldap_host, $this->ldap_port );
if(ldap_set_option($this->ds, LDAP_OPT_PROTOCOL_VERSION, 3))
if(ldap_set_option($this->ds, LDAP_OPT_REFERRALS, 0))
if($this->ldap_tls)
ldap_start_tls($this->ds);
}
//TODO: Not necessary to perform a bind each time, is it?
// login
if(!empty($this->ldap_dn)) {
$ldap_login = @ldap_bind( $this->ds, $this->ldap_dn, $this->ldap_password );
if(!$ldap_login) {
return false;
}
}
return $this->ds;
}
private function getDc( $uid ) {
if(!$this->configured)
return false;
// connect to server
$ds = $this->getDs();
if( !$ds )
return false;
// get dn
$filter = str_replace('%uid', $uid, $this->ldap_login_filter);
$sr = ldap_search( $this->getDs(), $this->ldap_base, $filter );
$entries = ldap_get_entries( $this->getDs(), $sr );
if( $entries['count'] == 0 ) {
return false;
}
$this->ldap_dc = $entries[0];
return $this->ldap_dc;
}
public function checkPassword( $uid, $password ) {
if(!$this->configured){
return false;
}
$dc = $this->getDc( $uid );
if( !$dc )
return false;
if (!@ldap_bind( $this->getDs(), $dc['dn'], $password )) {
return false;
}
if(!empty($this->ldap_quota) && !empty($this->ldap_quota_def)) {
$this->setQuota($uid);
}
if(!empty($this->ldap_email_attr)) {
$this->setEmail($uid);
}
if($this->ldap_nocase) {
$filter = str_replace('%uid', $uid, $this->ldap_login_filter);
$sr = ldap_search( $this->getDs(), $this->ldap_base, $filter );
$entries = ldap_get_entries( $this->getDs(), $sr );
if( $entries['count'] == 1 ) {
foreach($entries as $row) {
$ldap_display_name = strtolower($this->ldap_display_name);
if(isset($row[$ldap_display_name])) {
return $row[$ldap_display_name][0];
}
}
}
else {
return $uid;
}
}
else {
return $uid;
}
}
public function userExists( $uid ) {
if(!$this->configured){
return false;
}
$dn = $this->getDc($uid);
return !empty($dn);
}
public function getUsers()
{
if(!$this->configured)
return false;
// connect to server
$ds = $this->getDs();
if( !$ds )
return false;
// get users
$sr = ldap_search( $this->getDs(), $this->ldap_base, $this->ldap_userlist_filter );
$entries = ldap_get_entries( $this->getDs(), $sr );
if( $entries['count'] == 0 )
return false;
else {
$users = array();
foreach($entries as $row) {
// TODO ldap_get_entries() seems to lower all keys => needs review
$ldap_display_name = strtolower($this->ldap_display_name);
if(isset($row[$ldap_display_name])) {
$users[] = $row[$ldap_display_name][0];
}
}
// TODO language specific sorting of user names
sort($users);
return $users;
}
}
}
?>
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