nextcloud/apps/user_ldap/user_ldap.php

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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/>.
*
*/
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class OC_USER_LDAP extends OC_User_Backend {
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protected $ds;
protected $configured = false;
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// cached settings
protected $ldap_host;
protected $ldap_port;
protected $ldap_dn;
protected $ldap_password;
protected $ldap_base;
protected $ldap_filter;
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function __construct() {
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$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','');
$this->ldap_filter = OC_Appconfig::getValue('user_ldap', 'ldap_filter','');
if( !empty($this->ldap_host)
&& !empty($this->ldap_port)
&& !empty($this->ldap_dn)
&& !empty($this->ldap_password)
&& !empty($this->ldap_base)
&& !empty($this->ldap_filter)
)
{
$this->configured = true;
}
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}
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function __destruct() {
// close the connection
if( $this->ds )
ldap_unbind($this->ds);
}
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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($this->ds, LDAP_OPT_REFERRALS, 0))
ldap_start_tls($this->ds);
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}
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// login
if(!empty($this->ldap_dn)) {
$ldap_login = @ldap_bind( $this->ds, $this->ldap_dn, $this->ldap_password );
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if(!$ldap_login)
return false;
}
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return $this->ds;
}
private function getDn( $uid ) {
if(!$this->configured)
return false;
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// connect to server
$ds = $this->getDs();
if( !$ds )
return false;
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// get dn
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$filter = str_replace("%uid", $uid, $this->ldap_filter);
$sr = ldap_search( $this->getDs(), $this->ldap_base, $filter );
$entries = ldap_get_entries( $this->getDs(), $sr );
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if( $entries["count"] == 0 )
return false;
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return $entries[0]["dn"];
}
public function checkPassword( $uid, $password ) {
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if(!$this->configured){
return false;
}
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$dn = $this->getDn( $uid );
if( !$dn )
return false;
if (!@ldap_bind( $this->getDs(), $dn, $password ))
return false;
return $uid;
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}
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public function userExists( $uid ) {
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if(!$this->configured){
return false;
}
$dn = $this->getDn($uid);
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return !empty($dn);
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}
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}
?>