--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/plugins/password/drivers/dbmail.php	Thu Jan 04 15:50:29 2018 -0500
@@ -0,0 +1,59 @@
+<?php
+
+/**
+ * DBMail Password Driver
+ *
+ * Driver that adds functionality to change the users DBMail password.
+ * The code is derrived from the Squirrelmail "Change SASL Password" Plugin
+ * by Galen Johnson.
+ *
+ * It only works with dbmail-users on the same host where Roundcube runs
+ * and requires shell access and gcc in order to compile the binary.
+ *
+ * For installation instructions please read the README file.
+ *
+ * @version 1.0
+ *
+ * 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_dbmail_password
+{
+    function save($currpass, $newpass)
+    {
+        $curdir   = RCUBE_PLUGINS_DIR . 'password/helpers';
+        $username = escapeshellarg($_SESSION['username']);
+        $password = escapeshellarg($newpass);
+        $args     = rcmail::get_instance()->config->get('password_dbmail_args', '');
+        $command  = "$curdir/chgdbmailusers -c $username -w $password $args";
+
+        exec($command, $output, $return_value);
+
+        if ($return_value == 0) {
+            return PASSWORD_SUCCESS;
+        }
+        else {
+            rcube::raise_error(array(
+                'code' => 600,
+                'type' => 'php',
+                'file' => __FILE__, 'line' => __LINE__,
+                'message' => "Password plugin: Unable to execute $curdir/chgdbmailusers"
+                ), true, false);
+        }
+
+        return PASSWORD_ERROR;
+    }
+}