1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
|
<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* Plugin to enable LDAP Authentication and Authorization
*
* PHP version 5
*
* LICENCE: This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 program. If not, see <http://www.gnu.org/licenses/>.
*
* @category Plugin
* @package StatusNet
* @author Craig Andrews <candrews@integralblue.com>
* @copyright 2009 Craig Andrews http://candrews.integralblue.com
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
if (!defined('STATUSNET') && !defined('LACONICA')) {
exit(1);
}
require_once INSTALLDIR.'/plugins/Authentication/AuthenticationPlugin.php';
require_once 'Net/LDAP2.php';
class LdapAuthenticationPlugin extends AuthenticationPlugin
{
public $host=null;
public $port=null;
public $version=null;
public $starttls=null;
public $binddn=null;
public $bindpw=null;
public $basedn=null;
public $options=null;
public $filter=null;
public $scope=null;
public $attributes=array();
function __construct()
{
parent::__construct();
}
//---interface implementation---//
function checkPassword($nickname, $password)
{
$ldap = $this->ldap_get_connection();
if(!$ldap){
return false;
}
$entry = $this->ldap_get_user($nickname);
if(!$entry){
return false;
}else{
$config = $this->ldap_get_config();
$config['binddn']=$entry->dn();
$config['bindpw']=$password;
if($this->ldap_get_connection($config)){
return true;
}else{
return false;
}
}
}
function autoRegister($nickname)
{
$entry = $this->ldap_get_user($nickname,$this->attributes);
if($entry){
$registration_data = array();
foreach($this->attributes as $sn_attribute=>$ldap_attribute){
if($sn_attribute=='email'){
$registration_data[$sn_attribute]=common_canonical_email($entry->getValue($ldap_attribute,'single'));
}else if($sn_attribute=='nickname'){
$registration_data[$sn_attribute]=common_canonical_nickname($entry->getValue($ldap_attribute,'single'));
}else{
$registration_data[$sn_attribute]=$entry->getValue($ldap_attribute,'single');
}
}
//set the database saved password to a random string.
$registration_data['password']=common_good_rand(16);
$user = User::register($registration_data);
return true;
}else{
//user isn't in ldap, so we cannot register him
return null;
}
}
function changePassword($nickname,$oldpassword,$newpassword)
{
//TODO implement this
throw new Exception(_('Sorry, changing LDAP passwords is not supported at this time'));
return false;
}
function canUserChangeField($nickname, $field)
{
switch($field)
{
case 'password':
case 'nickname':
case 'email':
return false;
}
}
//---utility functions---//
function ldap_get_config(){
$config = array();
$keys = array('host','port','version','starttls','binddn','bindpw','basedn','options','filter','scope');
foreach($keys as $key){
$value = $this->$key;
if($value!==null){
$config[$key]=$value;
}
}
return $config;
}
function ldap_get_connection($config = null){
if($config == null){
$config = $this->ldap_get_config();
}
//cannot use Net_LDAP2::connect() as StatusNet uses
//PEAR::setErrorHandling(PEAR_ERROR_CALLBACK, 'handleError');
//PEAR handling can be overridden on instance objects, so we do that.
$ldap = new Net_LDAP2($config);
$ldap->setErrorHandling(PEAR_ERROR_RETURN);
$err=$ldap->bind();
if (Net_LDAP2::isError($err)) {
common_log(LOG_WARNING, 'Could not connect to LDAP server: '.$err->getMessage());
return false;
}
return $ldap;
}
/**
* get an LDAP entry for a user with a given username
*
* @param string $username
* $param array $attributes LDAP attributes to retrieve
* @return string DN
*/
function ldap_get_user($username,$attributes=array()){
$ldap = $this->ldap_get_connection();
$filter = Net_LDAP2_Filter::create($this->attributes['nickname'], 'equals', $username);
$options = array(
'scope' => 'sub',
'attributes' => $attributes
);
$search = $ldap->search(null,$filter,$options);
if (PEAR::isError($search)) {
common_log(LOG_WARNING, 'Error while getting DN for user: '.$search->getMessage());
return false;
}
if($search->count()==0){
return false;
}else if($search->count()==1){
$entry = $search->shiftEntry();
return $entry;
}else{
common_log(LOG_WARNING, 'Found ' . $search->count() . ' ldap user with the username: ' . $username);
return false;
}
}
}
|
