1: <?php
 2: /**
 3:  * Copyright 2013-2014 Horde LLC (http://www.horde.org/)
 4:  *
 5:  * See the enclosed file COPYING for license information (GPL). If you
 6:  * did not receive this file, see http://www.horde.org/licenses/gpl.
 7:  *
 8:  * @category  Horde
 9:  * @copyright 2013-2014 Horde LLC
10:  * @license   http://www.horde.org/licenses/gpl GPL
11:  * @package   IMP
12:  */
13: 
14: /**
15:  * Temporary data storage implementation for attachment data storage.
16:  *
17:  * Stores data using Horde_VFS to ensure that data is persistent for the
18:  * session. Compose data will be garbage collected at the end of a session
19:  * (if a user logs out properly).
20:  *
21:  * @author    Michael Slusarz <slusarz@horde.org>
22:  * @category  Horde
23:  * @copyright 2013-2014 Horde LLC
24:  * @license   http://www.horde.org/licenses/gpl GPL
25:  * @package   IMP
26:  */
27: class IMP_Compose_Attachment_Storage_Temp
28: extends IMP_Compose_Attachment_Storage
29: {
30:     /**
31:      * The VFS HashTable object.
32:      *
33:      * @var Horde_HashTable_Vfs
34:      */
35:     protected $_ht;
36: 
37:     /**
38:      */
39:     public function __construct($user, $id = null)
40:     {
41:         parent::__construct($user, $id);
42: 
43:         $this->_ht = new Horde_Core_HashTable_PersistentSession();
44:     }
45: 
46:     /**
47:      */
48:     protected function _read()
49:     {
50:         try {
51:             return $this->_ht->getStream($this->_id);
52:         } catch (Exception $e) {
53:             throw new IMP_Compose_Exception($e);
54:         }
55:     }
56: 
57:     /**
58:      */
59:     protected function _write($filename, Horde_Mime_Part $part)
60:     {
61:         if (!$this->_ht->set($this->_id, $filename, array('filename' => true))) {
62:             throw new IMP_Compose_Exception('Could not save attachment data.');
63:         }
64:     }
65: 
66:     /**
67:      */
68:     public function delete()
69:     {
70:         $this->_ht->delete($this->_id);
71:     }
72: 
73:     /**
74:      */
75:     public function exists()
76:     {
77:         return $this->_ht->exists($this->_id);
78:     }
79: 
80: }
81: