--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/program/lib/Roundcube/rcube_message_part.php	Thu Jan 04 15:52:31 2018 -0500
@@ -0,0 +1,94 @@
+<?php
+
+/**
+ +-----------------------------------------------------------------------+
+ | This file is part of the Roundcube Webmail client                     |
+ | Copyright (C) 2005-2012, The Roundcube Dev Team                       |
+ | Copyright (C) 2011-2012, Kolab Systems AG                             |
+ |                                                                       |
+ | Licensed under the GNU General Public License version 3 or            |
+ | any later version with exceptions for skins & plugins.                |
+ | See the README file for a full license statement.                     |
+ |                                                                       |
+ | PURPOSE:                                                              |
+ |   Class representing a message part                                   |
+ +-----------------------------------------------------------------------+
+ | Author: Thomas Bruederli <roundcube@gmail.com>                        |
+ | Author: Aleksander Machniak <alec@alec.pl>                            |
+ +-----------------------------------------------------------------------+
+*/
+
+/**
+ * Class representing a message part
+ *
+ * @package    Framework
+ * @subpackage Storage
+ * @author     Thomas Bruederli <roundcube@gmail.com>
+ * @author     Aleksander Machniak <alec@alec.pl>
+ */
+class rcube_message_part
+{
+    /**
+     * Part MIME identifier
+     *
+     * @var string
+     */
+    public $mime_id = '';
+
+    /**
+     * Content main type
+     *
+     * @var string
+     */
+    public $ctype_primary = 'text';
+
+    /**
+     * Content subtype
+     *
+     * @var string
+     */
+    public $ctype_secondary = 'plain';
+
+    /**
+     * Complete content type
+     *
+     * @var string
+     */
+    public $mimetype = 'text/plain';
+
+    /**
+     * Part size in bytes
+     *
+     * @var int
+     */
+    public $size = 0;
+
+    /**
+     * Part headers
+     *
+     * @var array
+     */
+    public $headers = array();
+
+    public $disposition  = '';
+    public $filename     = '';
+    public $encoding     = '8bit';
+    public $charset      = '';
+    public $d_parameters = array();
+    public $ctype_parameters = array();
+
+
+    /**
+     * Clone handler.
+     */
+    function __clone()
+    {
+        if (isset($this->parts)) {
+            foreach ($this->parts as $idx => $part) {
+                if (is_object($part)) {
+                    $this->parts[$idx] = clone $part;
+                }
+            }
+        }
+    }
+}