--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/plugins/password/drivers/poppassd.php	Thu Jan 04 15:50:29 2018 -0500
@@ -0,0 +1,86 @@
+<?php
+
+/**
+ * Poppassd Password Driver
+ *
+ * Driver to change passwords via Poppassd/Courierpassd
+ *
+ * @version 2.0
+ * @author Philip Weir
+ *
+ * Copyright (C) 2005-2013, 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_poppassd_password
+{
+    function format_error_result($code, $line)
+    {
+        if (preg_match('/^\d\d\d\s+(\S.*)\s*$/', $line, $matches)) {
+            return array('code' => $code, 'message' => $matches[1]);
+        }
+
+        return $code;
+    }
+
+    function save($curpass, $passwd)
+    {
+        $rcmail   = rcmail::get_instance();
+        $poppassd = new Net_Socket();
+
+        $port = $rcmail->config->get('password_pop_port', 106);
+        $host = $rcmail->config->get('password_pop_host', 'localhost');
+        $host = rcube_utils::parse_host($host);
+
+        $result = $poppassd->connect($host, $port, null);
+
+        if (is_a($result, 'PEAR_Error')) {
+            return $this->format_error_result(PASSWORD_CONNECT_ERROR, $result->getMessage());
+        }
+
+        $result = $poppassd->readLine();
+
+        if (!preg_match('/^2\d\d/', $result)) {
+            $poppassd->disconnect();
+            return $this->format_error_result(PASSWORD_ERROR, $result);
+        }
+
+        $poppassd->writeLine("user ". $_SESSION['username']);
+        $result = $poppassd->readLine();
+
+        if (!preg_match('/^[23]\d\d/', $result)) {
+            $poppassd->disconnect();
+            return $this->format_error_result(PASSWORD_CONNECT_ERROR, $result);
+        }
+
+        $poppassd->writeLine("pass ". $curpass);
+        $result = $poppassd->readLine();
+
+        if (!preg_match('/^[23]\d\d/', $result)) {
+            $poppassd->disconnect();
+            return $this->format_error_result(PASSWORD_ERROR, $result);
+        }
+
+        $poppassd->writeLine("newpass ". $passwd);
+        $result = $poppassd->readLine();
+        $poppassd->disconnect();
+
+        if (!preg_match('/^2\d\d/', $result)) {
+            return $this->format_error_result(PASSWORD_ERROR, $result);
+        }
+
+        return PASSWORD_SUCCESS;
+    }
+}