--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/plugins/password/drivers/expect.php	Thu Jan 04 15:50:29 2018 -0500
@@ -0,0 +1,73 @@
+<?php
+
+/**
+ * expect driver
+ *
+ * Driver that adds functionality to change the systems user password via
+ * the 'expect' command.
+ *
+ * For installation instructions please read the README file.
+ *
+ * @version 2.0
+ * @author Andy Theuninck <gohanman@gmail.com)
+ *
+ * Based on chpasswd roundcubemail password driver by
+ * @author Alex Cartwright <acartwright@mutinydesign.co.uk)
+ * and expect horde passwd driver by
+ * @author  Gaudenz Steinlin <gaudenz@soziologie.ch>
+ *
+ * Configuration settings:
+ * password_expect_bin => location of expect (e.g. /usr/bin/expect)
+ * password_expect_script => path to "password-expect" file
+ * password_expect_params => arguments for the expect script
+ *   see the password-expect file for details. This is probably
+ *   a good starting default:
+ *   -telent -host localhost -output /tmp/passwd.log -log /tmp/passwd.log
+ *
+ * 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_expect_password
+{
+    public function save($currpass, $newpass)
+    {
+        $rcmail   = rcmail::get_instance();
+        $bin      = $rcmail->config->get('password_expect_bin');
+        $script   = $rcmail->config->get('password_expect_script');
+        $params   = $rcmail->config->get('password_expect_params');
+        $username = $_SESSION['username'];
+
+        $cmd = $bin . ' -f ' . $script . ' -- ' . $params;
+        $handle = popen($cmd, "w");
+        fwrite($handle, "$username\n");
+        fwrite($handle, "$currpass\n");
+        fwrite($handle, "$newpass\n");
+
+        if (pclose($handle) == 0) {
+            return PASSWORD_SUCCESS;
+        }
+        else {
+            rcube::raise_error(array(
+                'code' => 600,
+                'type' => 'php',
+                'file' => __FILE__, 'line' => __LINE__,
+                'message' => "Password plugin: Unable to execute $cmd"
+                ), true, false);
+        }
+
+        return PASSWORD_ERROR;
+    }
+}