--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/plugins/password/drivers/ldap.php	Thu Jan 04 15:50:29 2018 -0500
@@ -0,0 +1,223 @@
+<?php
+
+/**
+ * LDAP Password Driver
+ *
+ * Driver for passwords stored in LDAP
+ * This driver use the PEAR Net_LDAP2 class (http://pear.php.net/package/Net_LDAP2).
+ *
+ * @version 2.0
+ * @author Edouard MOREAU <edouard.moreau@ensma.fr>
+ *
+ * method hashPassword based on code from the phpLDAPadmin development team (http://phpldapadmin.sourceforge.net/).
+ * method randomSalt based on code from the phpLDAPadmin development team (http://phpldapadmin.sourceforge.net/).
+ *
+ * Copyright (C) 2005-2014, The Roundcube Dev Team
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see http://www.gnu.org/licenses/.
+ */
+
+class rcube_ldap_password
+{
+    public function save($curpass, $passwd)
+    {
+        $rcmail = rcmail::get_instance();
+        require_once 'Net/LDAP2.php';
+
+        // Building user DN
+        if ($userDN = $rcmail->config->get('password_ldap_userDN_mask')) {
+            $userDN = self::substitute_vars($userDN);
+        }
+        else {
+            $userDN = $this->search_userdn($rcmail);
+        }
+
+        if (empty($userDN)) {
+            return PASSWORD_CONNECT_ERROR;
+        }
+
+        // Connection Method
+        switch($rcmail->config->get('password_ldap_method')) {
+            case 'admin':
+                $binddn = $rcmail->config->get('password_ldap_adminDN');
+                $bindpw = $rcmail->config->get('password_ldap_adminPW');
+                break;
+            case 'user':
+            default:
+                $binddn = $userDN;
+                $bindpw = $curpass;
+                break;
+        }
+
+        // Configuration array
+        $ldapConfig = array (
+            'binddn'    => $binddn,
+            'bindpw'    => $bindpw,
+            'basedn'    => $rcmail->config->get('password_ldap_basedn'),
+            'host'      => $rcmail->config->get('password_ldap_host', 'localhost'),
+            'port'      => $rcmail->config->get('password_ldap_port', '389'),
+            'starttls'  => $rcmail->config->get('password_ldap_starttls'),
+            'version'   => $rcmail->config->get('password_ldap_version', '3'),
+        );
+
+        // Connecting using the configuration array
+        $ldap = Net_LDAP2::connect($ldapConfig);
+
+        // Checking for connection error
+        if (is_a($ldap, 'PEAR_Error')) {
+            return PASSWORD_CONNECT_ERROR;
+        }
+
+        $force        = $rcmail->config->get('password_ldap_force_replace', true);
+        $pwattr       = $rcmail->config->get('password_ldap_pwattr', 'userPassword');
+        $lchattr      = $rcmail->config->get('password_ldap_lchattr');
+        $smbpwattr    = $rcmail->config->get('password_ldap_samba_pwattr');
+        $smblchattr   = $rcmail->config->get('password_ldap_samba_lchattr');
+        $samba        = $rcmail->config->get('password_ldap_samba');
+        $encodage     = $rcmail->config->get('password_ldap_encodage', 'crypt');
+
+        // Support multiple userPassword values where desired.
+        // multiple encodings can be specified separated by '+' (e.g. "cram-md5+ssha")
+        $encodages    = explode('+', $encodage);
+        $crypted_pass = array();
+
+        foreach ($encodages as $enc) {
+            if ($cpw = password::hash_password($passwd, $enc)) {
+                $crypted_pass[] = $cpw;
+            }
+        }
+
+        // Support password_ldap_samba option for backward compat.
+        if ($samba && !$smbpwattr) {
+            $smbpwattr  = 'sambaNTPassword';
+            $smblchattr = 'sambaPwdLastSet';
+        }
+
+        // Crypt new password
+        if (empty($crypted_pass)) {
+            return PASSWORD_CRYPT_ERROR;
+        }
+
+        // Crypt new samba password
+        if ($smbpwattr && !($samba_pass = password::hash_password($passwd, 'samba'))) {
+            return PASSWORD_CRYPT_ERROR;
+        }
+
+        // Writing new crypted password to LDAP
+        $userEntry = $ldap->getEntry($userDN);
+        if (Net_LDAP2::isError($userEntry)) {
+            return PASSWORD_CONNECT_ERROR;
+        }
+
+        if (!$userEntry->replace(array($pwattr => $crypted_pass), $force)) {
+            return PASSWORD_CONNECT_ERROR;
+        }
+
+        // Updating PasswordLastChange Attribute if desired
+        if ($lchattr) {
+            $current_day = (int)(time() / 86400);
+            if (!$userEntry->replace(array($lchattr => $current_day), $force)) {
+                return PASSWORD_CONNECT_ERROR;
+            }
+        }
+
+        // Update Samba password and last change fields
+        if ($smbpwattr) {
+            $userEntry->replace(array($smbpwattr => $samba_pass), $force);
+        }
+        // Update Samba password last change field
+        if ($smblchattr) {
+            $userEntry->replace(array($smblchattr => time()), $force);
+        }
+
+        if (Net_LDAP2::isError($userEntry->update())) {
+            return PASSWORD_CONNECT_ERROR;
+        }
+
+        // All done, no error
+        return PASSWORD_SUCCESS;
+    }
+
+    /**
+     * Bind with searchDN and searchPW and search for the user's DN.
+     * Use search_base and search_filter defined in config file.
+     * Return the found DN.
+     */
+    function search_userdn($rcmail)
+    {
+        $binddn = $rcmail->config->get('password_ldap_searchDN');
+        $bindpw = $rcmail->config->get('password_ldap_searchPW');
+
+        $ldapConfig = array (
+            'basedn'    => $rcmail->config->get('password_ldap_basedn'),
+            'host'      => $rcmail->config->get('password_ldap_host', 'localhost'),
+            'port'      => $rcmail->config->get('password_ldap_port', '389'),
+            'starttls'  => $rcmail->config->get('password_ldap_starttls'),
+            'version'   => $rcmail->config->get('password_ldap_version', '3'),
+        );
+
+        // allow anonymous searches
+        if (!empty($binddn)) {
+            $ldapConfig['binddn'] = $binddn;
+            $ldapConfig['bindpw'] = $bindpw;
+        }
+
+        $ldap = Net_LDAP2::connect($ldapConfig);
+
+        if (is_a($ldap, 'PEAR_Error')) {
+            return '';
+        }
+
+        $base   = self::substitute_vars($rcmail->config->get('password_ldap_search_base'));
+        $filter = self::substitute_vars($rcmail->config->get('password_ldap_search_filter'));
+        $options = array (
+            'scope' => 'sub',
+            'attributes' => array(),
+        );
+
+        $result = $ldap->search($base, $filter, $options);
+        if (is_a($result, 'PEAR_Error') || ($result->count() != 1)) {
+            $ldap->done();
+            return '';
+        }
+        $userDN = $result->current()->dn();
+        $ldap->done();
+
+        return $userDN;
+    }
+
+    /**
+     * Substitute %login, %name, %domain, %dc in $str
+     * See plugin config for details
+     */
+    static function substitute_vars($str)
+    {
+        $str = str_replace('%login', $_SESSION['username'], $str);
+        $str = str_replace('%l', $_SESSION['username'], $str);
+
+        $parts = explode('@', $_SESSION['username']);
+
+        if (count($parts) == 2) {
+            $dc = 'dc='.strtr($parts[1], array('.' => ',dc=')); // hierarchal domain string
+
+            $str = str_replace('%name', $parts[0], $str);
+            $str = str_replace('%n', $parts[0], $str);
+            $str = str_replace('%dc', $dc, $str);
+            $str = str_replace('%domain', $parts[1], $str);
+            $str = str_replace('%d', $parts[1], $str);
+        }
+
+        return $str;
+    }
+}