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<?php
/*
* $Horde: horde/lib/Auth/ldap.php,v 1.5.2.6 2003/01/03 12:48:22 jan Exp $
*
* Copyright 1999-2003 Jon Parise <jon@horde.org>
*
* See the enclosed file COPYING for license information (LGPL). If you
* did not receive this file, see http://www.fsf.org/copyleft/lgpl.html.
*/
Horde::functionCheck('ldap_connect', true,
'Auth_ldap: Required LDAP functions were not found.');
/**
* The Auth_ldap class provides an LDAP implementation of the Horde
* authentication system.
*
* Required values for $params:
* 'hostspec' The hostname of the LDAP server.
* 'basedn' The base DN for the LDAP server.
* 'uid' The username search key.
*
* @author Jon Parise <jon@horde.org>
* @version $Revision: 1.5.2.6 $
* @since Horde 1.3
* @package horde.auth
*/
class Auth_ldap extends Auth {
/** An array of capabilities, so that the driver can report which
operations it supports and which it doesn't.
@var array $capabilities */
var $capabilities = array('add' => true,
'update' => false,
'remove' => false,
'list' => true,
'transparent' => false,
'loginscreen' => false);
/**
* Hash containing connection parameters.
* @var array $params
*/
var $params = array();
/**
* Constructs a new LDAP permissions object.
*
* @param array $params A hash containing connection parameters.
*/
function Auth_ldap($params = array())
{
if (isset($params['hostspec'])) {
$this->params['hostspec'] = $params['hostspec'];
}
if (isset($params['basedn'])) {
$this->params['basedn'] = $params['basedn'];
}
if (isset($params['uid'])) {
$this->params['uid'] = $params['uid'];
}
if (isset($params['username'])) {
$this->params['username'] = $params['username'];
}
if (isset($params['password'])) {
$this->params['password'] = $params['password'];
}
}
/**
* Find out if the given set of login credentials are valid.
*
* @param string $userID The userID to check.
* @param array $credentials An array of login credentials.
*
* @return boolean True on success or a PEAR_Error object on failure.
*/
function authenticate($userID, $credentials)
{
if (Auth::checkAuth($userID)) {
return true;
}
/* Ensure we've been provided with all of the necessary parameters. */
if (!isset($this->params['hostspec'])) {
Horde::fatal(new PEAR_Error(_("Required 'hostspec' not specified in authentication configuration.")), __FILE__, __LINE__);
}
if (!isset($this->params['basedn'])) {
Horde::fatal(new PEAR_Error(_("Required 'basedn' not specified in authentication configuration.")), __FILE__, __LINE__);
}
if (!isset($this->params['uid'])) {
Horde::fatal(new PEAR_Error(_("Required 'uid' not specified in authentication configuration.")), __FILE__, __LINE__);
}
if (!isset($credentials['password'])) {
Horde::fatal(new PEAR_Error(_("Required 'password' not specified in authentication configuration.")), __FILE__, __LINE__);
}
/* Connect to the LDAP server. */
$ldap = @ldap_connect($this->params['hostspec']);
if (!$ldap) {
Horde::fatal(new PEAR_Error(_("Failed to connect to LDAP server.")), __FILE__, __LINE__);
}
/* Search for the user's full DN. */
$search = @ldap_search($ldap, $this->params['basedn'],
$this->params['uid'] . '=' . $userID, array($this->params['uid']));
$result = @ldap_get_entries($ldap, $search);
if (is_array($result) && (count($result) > 1)) {
$dn = $result[0]['dn'];
} else {
return (new PEAR_Error(_("Empty result.")));
}
/* Attempt to bind to the LDAP server as the user. */
$bind = @ldap_bind($ldap, $dn, $credentials['password']);
if ($bind != false) {
@ldap_close($ldap);
Auth::setAuth($userID, $credentials);
return true;
}
@ldap_close($ldap);
return false;
}
/**
* Add a set of authentication credentials.
*
* @param string $userID The userID to add.
* @param array $credentials The credentials to be set.
*/
function addUser($userID, $credentials)
{
$ldap = @ldap_connect($this->params['hostspec']);
$binddn = $this->params['uid'] . '=' . $this->params['username'] . ',' . $this->params['basedn'];
$bind = @ldap_bind($ldap, $binddn, $this->params['password']);
$dn = $this->params['uid'] . '=' . $userID . ',' . $this->params['basedn'];
$entry['objectClass'][0 ] = 'top';
$entry['objectClass'][1 ] = 'person';
$entry['cn'] = $userID;
$entry['sn'] = $userID;
$entry['userpassword'] = $credentials['password'];
@ldap_add($ldap, $dn, $entry);
return AUTH_OK;
}
/**
* List Users
*
* @return array of Users
*/
function listUsers()
{
$ldap = @ldap_connect($this->params['hostspec']);
$dn = $this->params['uid'] . '=' . $this->params['username'] . ',' . $this->params['basedn'];
$bind = @ldap_bind($ldap, $dn, $this->params['password']);
$search = ldap_search($ldap, $this->params['basedn'],
'objectClass=person');
$entries = ldap_get_entries($ldap, $search);
$userlist = array();
for ($i = 0; $i < $entries['count']; $i++) {
$userlist[$i] = $entries[$i]['cn'][0];
}
return $userlist;
}
}
?>
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