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comparison plugins/password/drivers/ldap.php @ 0:1e000243b222

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vanilla 1.3.3 distro, I hope
author Charlie Root
date Thu, 04 Jan 2018 15:50:29 -0500
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-1:000000000000 0:1e000243b222
1 <?php
2
3 /**
4 * LDAP Password Driver
5 *
6 * Driver for passwords stored in LDAP
7 * This driver use the PEAR Net_LDAP2 class (http://pear.php.net/package/Net_LDAP2).
8 *
9 * @version 2.0
10 * @author Edouard MOREAU <edouard.moreau@ensma.fr>
11 *
12 * method hashPassword based on code from the phpLDAPadmin development team (http://phpldapadmin.sourceforge.net/).
13 * method randomSalt based on code from the phpLDAPadmin development team (http://phpldapadmin.sourceforge.net/).
14 *
15 * Copyright (C) 2005-2014, The Roundcube Dev Team
16 *
17 * This program is free software: you can redistribute it and/or modify
18 * it under the terms of the GNU General Public License as published by
19 * the Free Software Foundation, either version 3 of the License, or
20 * (at your option) any later version.
21 *
22 * This program is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU General Public License for more details.
26 *
27 * You should have received a copy of the GNU General Public License
28 * along with this program. If not, see http://www.gnu.org/licenses/.
29 */
30
31 class rcube_ldap_password
32 {
33 public function save($curpass, $passwd)
34 {
35 $rcmail = rcmail::get_instance();
36 require_once 'Net/LDAP2.php';
37
38 // Building user DN
39 if ($userDN = $rcmail->config->get('password_ldap_userDN_mask')) {
40 $userDN = self::substitute_vars($userDN);
41 }
42 else {
43 $userDN = $this->search_userdn($rcmail);
44 }
45
46 if (empty($userDN)) {
47 return PASSWORD_CONNECT_ERROR;
48 }
49
50 // Connection Method
51 switch($rcmail->config->get('password_ldap_method')) {
52 case 'admin':
53 $binddn = $rcmail->config->get('password_ldap_adminDN');
54 $bindpw = $rcmail->config->get('password_ldap_adminPW');
55 break;
56 case 'user':
57 default:
58 $binddn = $userDN;
59 $bindpw = $curpass;
60 break;
61 }
62
63 // Configuration array
64 $ldapConfig = array (
65 'binddn' => $binddn,
66 'bindpw' => $bindpw,
67 'basedn' => $rcmail->config->get('password_ldap_basedn'),
68 'host' => $rcmail->config->get('password_ldap_host', 'localhost'),
69 'port' => $rcmail->config->get('password_ldap_port', '389'),
70 'starttls' => $rcmail->config->get('password_ldap_starttls'),
71 'version' => $rcmail->config->get('password_ldap_version', '3'),
72 );
73
74 // Connecting using the configuration array
75 $ldap = Net_LDAP2::connect($ldapConfig);
76
77 // Checking for connection error
78 if (is_a($ldap, 'PEAR_Error')) {
79 return PASSWORD_CONNECT_ERROR;
80 }
81
82 $force = $rcmail->config->get('password_ldap_force_replace', true);
83 $pwattr = $rcmail->config->get('password_ldap_pwattr', 'userPassword');
84 $lchattr = $rcmail->config->get('password_ldap_lchattr');
85 $smbpwattr = $rcmail->config->get('password_ldap_samba_pwattr');
86 $smblchattr = $rcmail->config->get('password_ldap_samba_lchattr');
87 $samba = $rcmail->config->get('password_ldap_samba');
88 $encodage = $rcmail->config->get('password_ldap_encodage', 'crypt');
89
90 // Support multiple userPassword values where desired.
91 // multiple encodings can be specified separated by '+' (e.g. "cram-md5+ssha")
92 $encodages = explode('+', $encodage);
93 $crypted_pass = array();
94
95 foreach ($encodages as $enc) {
96 if ($cpw = password::hash_password($passwd, $enc)) {
97 $crypted_pass[] = $cpw;
98 }
99 }
100
101 // Support password_ldap_samba option for backward compat.
102 if ($samba && !$smbpwattr) {
103 $smbpwattr = 'sambaNTPassword';
104 $smblchattr = 'sambaPwdLastSet';
105 }
106
107 // Crypt new password
108 if (empty($crypted_pass)) {
109 return PASSWORD_CRYPT_ERROR;
110 }
111
112 // Crypt new samba password
113 if ($smbpwattr && !($samba_pass = password::hash_password($passwd, 'samba'))) {
114 return PASSWORD_CRYPT_ERROR;
115 }
116
117 // Writing new crypted password to LDAP
118 $userEntry = $ldap->getEntry($userDN);
119 if (Net_LDAP2::isError($userEntry)) {
120 return PASSWORD_CONNECT_ERROR;
121 }
122
123 if (!$userEntry->replace(array($pwattr => $crypted_pass), $force)) {
124 return PASSWORD_CONNECT_ERROR;
125 }
126
127 // Updating PasswordLastChange Attribute if desired
128 if ($lchattr) {
129 $current_day = (int)(time() / 86400);
130 if (!$userEntry->replace(array($lchattr => $current_day), $force)) {
131 return PASSWORD_CONNECT_ERROR;
132 }
133 }
134
135 // Update Samba password and last change fields
136 if ($smbpwattr) {
137 $userEntry->replace(array($smbpwattr => $samba_pass), $force);
138 }
139 // Update Samba password last change field
140 if ($smblchattr) {
141 $userEntry->replace(array($smblchattr => time()), $force);
142 }
143
144 if (Net_LDAP2::isError($userEntry->update())) {
145 return PASSWORD_CONNECT_ERROR;
146 }
147
148 // All done, no error
149 return PASSWORD_SUCCESS;
150 }
151
152 /**
153 * Bind with searchDN and searchPW and search for the user's DN.
154 * Use search_base and search_filter defined in config file.
155 * Return the found DN.
156 */
157 function search_userdn($rcmail)
158 {
159 $binddn = $rcmail->config->get('password_ldap_searchDN');
160 $bindpw = $rcmail->config->get('password_ldap_searchPW');
161
162 $ldapConfig = array (
163 'basedn' => $rcmail->config->get('password_ldap_basedn'),
164 'host' => $rcmail->config->get('password_ldap_host', 'localhost'),
165 'port' => $rcmail->config->get('password_ldap_port', '389'),
166 'starttls' => $rcmail->config->get('password_ldap_starttls'),
167 'version' => $rcmail->config->get('password_ldap_version', '3'),
168 );
169
170 // allow anonymous searches
171 if (!empty($binddn)) {
172 $ldapConfig['binddn'] = $binddn;
173 $ldapConfig['bindpw'] = $bindpw;
174 }
175
176 $ldap = Net_LDAP2::connect($ldapConfig);
177
178 if (is_a($ldap, 'PEAR_Error')) {
179 return '';
180 }
181
182 $base = self::substitute_vars($rcmail->config->get('password_ldap_search_base'));
183 $filter = self::substitute_vars($rcmail->config->get('password_ldap_search_filter'));
184 $options = array (
185 'scope' => 'sub',
186 'attributes' => array(),
187 );
188
189 $result = $ldap->search($base, $filter, $options);
190 if (is_a($result, 'PEAR_Error') || ($result->count() != 1)) {
191 $ldap->done();
192 return '';
193 }
194 $userDN = $result->current()->dn();
195 $ldap->done();
196
197 return $userDN;
198 }
199
200 /**
201 * Substitute %login, %name, %domain, %dc in $str
202 * See plugin config for details
203 */
204 static function substitute_vars($str)
205 {
206 $str = str_replace('%login', $_SESSION['username'], $str);
207 $str = str_replace('%l', $_SESSION['username'], $str);
208
209 $parts = explode('@', $_SESSION['username']);
210
211 if (count($parts) == 2) {
212 $dc = 'dc='.strtr($parts[1], array('.' => ',dc=')); // hierarchal domain string
213
214 $str = str_replace('%name', $parts[0], $str);
215 $str = str_replace('%n', $parts[0], $str);
216 $str = str_replace('%dc', $dc, $str);
217 $str = str_replace('%domain', $parts[1], $str);
218 $str = str_replace('%d', $parts[1], $str);
219 }
220
221 return $str;
222 }
223 }