diff -r 5b37998e522e -r 162c1de6545a web/lib/Zend/Mail/Storage/Folder/Mbox.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/Zend/Mail/Storage/Folder/Mbox.php	Fri Mar 11 15:05:35 2011 +0100
@@ -0,0 +1,264 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Mail
+ * @subpackage Storage
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: Mbox.php 20096 2010-01-06 02:05:09Z bkarwin $
+ */
+
+
+/**
+ * @see Zend_Mail_Storage_Folder
+ */
+require_once 'Zend/Mail/Storage/Folder.php';
+
+/**
+ * @see Zend_Mail_Storage_Folder_Interface
+ */
+require_once 'Zend/Mail/Storage/Folder/Interface.php';
+
+/**
+ * @see Zend_Mail_Storage_Mbox
+ */
+require_once 'Zend/Mail/Storage/Mbox.php';
+
+
+/**
+ * @category   Zend
+ * @package    Zend_Mail
+ * @subpackage Storage
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Mail_Storage_Folder_Mbox extends Zend_Mail_Storage_Mbox implements Zend_Mail_Storage_Folder_Interface
+{
+    /**
+     * Zend_Mail_Storage_Folder root folder for folder structure
+     * @var Zend_Mail_Storage_Folder
+     */
+    protected $_rootFolder;
+
+    /**
+     * rootdir of folder structure
+     * @var string
+     */
+    protected $_rootdir;
+
+    /**
+     * name of current folder
+     * @var string
+     */
+    protected $_currentFolder;
+
+    /**
+     * Create instance with parameters
+     *
+     * Disallowed parameters are:
+     *   - filename use Zend_Mail_Storage_Mbox for a single file
+     * Supported parameters are:
+     *   - dirname rootdir of mbox structure
+     *   - folder intial selected folder, default is 'INBOX'
+     *
+     * @param  $params array mail reader specific parameters
+     * @throws Zend_Mail_Storage_Exception
+     */
+    public function __construct($params)
+    {
+        if (is_array($params)) {
+            $params = (object)$params;
+        }
+
+        if (isset($params->filename)) {
+            /**
+             * @see Zend_Mail_Storage_Exception
+             */
+            require_once 'Zend/Mail/Storage/Exception.php';
+            throw new Zend_Mail_Storage_Exception('use Zend_Mail_Storage_Mbox for a single file');
+        }
+
+        if (!isset($params->dirname) || !is_dir($params->dirname)) {
+            /**
+             * @see Zend_Mail_Storage_Exception
+             */
+            require_once 'Zend/Mail/Storage/Exception.php';
+            throw new Zend_Mail_Storage_Exception('no valid dirname given in params');
+        }
+
+        $this->_rootdir = rtrim($params->dirname, DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR;
+
+        $this->_buildFolderTree($this->_rootdir);
+        $this->selectFolder(!empty($params->folder) ? $params->folder : 'INBOX');
+        $this->_has['top']      = true;
+        $this->_has['uniqueid'] = false;
+    }
+
+    /**
+     * find all subfolders and mbox files for folder structure
+     *
+     * Result is save in Zend_Mail_Storage_Folder instances with the root in $this->_rootFolder.
+     * $parentFolder and $parentGlobalName are only used internally for recursion.
+     *
+     * @param string $currentDir call with root dir, also used for recursion.
+     * @param Zend_Mail_Storage_Folder|null $parentFolder used for recursion
+     * @param string $parentGlobalName used for rescursion
+     * @return null
+     * @throws Zend_Mail_Storage_Exception
+     */
+    protected function _buildFolderTree($currentDir, $parentFolder = null, $parentGlobalName = '')
+    {
+        if (!$parentFolder) {
+            $this->_rootFolder = new Zend_Mail_Storage_Folder('/', '/', false);
+            $parentFolder = $this->_rootFolder;
+        }
+
+        $dh = @opendir($currentDir);
+        if (!$dh) {
+            /**
+             * @see Zend_Mail_Storage_Exception
+             */
+            require_once 'Zend/Mail/Storage/Exception.php';
+            throw new Zend_Mail_Storage_Exception("can't read dir $currentDir");
+        }
+        while (($entry = readdir($dh)) !== false) {
+            // ignore hidden files for mbox
+            if ($entry[0] == '.') {
+                continue;
+            }
+            $absoluteEntry = $currentDir . $entry;
+            $globalName = $parentGlobalName . DIRECTORY_SEPARATOR . $entry;
+            if (is_file($absoluteEntry) && $this->_isMboxFile($absoluteEntry)) {
+                $parentFolder->$entry = new Zend_Mail_Storage_Folder($entry, $globalName);
+                continue;
+            }
+            if (!is_dir($absoluteEntry) /* || $entry == '.' || $entry == '..' */) {
+                continue;
+            }
+            $folder = new Zend_Mail_Storage_Folder($entry, $globalName, false);
+            $parentFolder->$entry = $folder;
+            $this->_buildFolderTree($absoluteEntry . DIRECTORY_SEPARATOR, $folder, $globalName);
+        }
+
+        closedir($dh);
+    }
+
+    /**
+     * get root folder or given folder
+     *
+     * @param string $rootFolder get folder structure for given folder, else root
+     * @return Zend_Mail_Storage_Folder root or wanted folder
+     * @throws Zend_Mail_Storage_Exception
+     */
+    public function getFolders($rootFolder = null)
+    {
+        if (!$rootFolder) {
+            return $this->_rootFolder;
+        }
+
+        $currentFolder = $this->_rootFolder;
+        $subname = trim($rootFolder, DIRECTORY_SEPARATOR);
+        while ($currentFolder) {
+            @list($entry, $subname) = @explode(DIRECTORY_SEPARATOR, $subname, 2);
+            $currentFolder = $currentFolder->$entry;
+            if (!$subname) {
+                break;
+            }
+        }
+
+        if ($currentFolder->getGlobalName() != DIRECTORY_SEPARATOR . trim($rootFolder, DIRECTORY_SEPARATOR)) {
+            /**
+             * @see Zend_Mail_Storage_Exception
+             */
+            require_once 'Zend/Mail/Storage/Exception.php';
+            throw new Zend_Mail_Storage_Exception("folder $rootFolder not found");
+        }
+        return $currentFolder;
+    }
+
+    /**
+     * select given folder
+     *
+     * folder must be selectable!
+     *
+     * @param Zend_Mail_Storage_Folder|string $globalName global name of folder or instance for subfolder
+     * @return null
+     * @throws Zend_Mail_Storage_Exception
+     */
+    public function selectFolder($globalName)
+    {
+        $this->_currentFolder = (string)$globalName;
+
+        // getting folder from folder tree for validation
+        $folder = $this->getFolders($this->_currentFolder);
+
+        try {
+            $this->_openMboxFile($this->_rootdir . $folder->getGlobalName());
+        } catch(Zend_Mail_Storage_Exception $e) {
+            // check what went wrong
+            if (!$folder->isSelectable()) {
+                /**
+                 * @see Zend_Mail_Storage_Exception
+                 */
+                require_once 'Zend/Mail/Storage/Exception.php';
+                throw new Zend_Mail_Storage_Exception("{$this->_currentFolder} is not selectable", 0, $e);
+            }
+            // seems like file has vanished; rebuilding folder tree - but it's still an exception
+            $this->_buildFolderTree($this->_rootdir);
+            /**
+             * @see Zend_Mail_Storage_Exception
+             */
+            require_once 'Zend/Mail/Storage/Exception.php';
+            throw new Zend_Mail_Storage_Exception('seems like the mbox file has vanished, I\'ve rebuild the ' .
+                                                         'folder tree, search for an other folder and try again', 0, $e);
+        }
+    }
+
+    /**
+     * get Zend_Mail_Storage_Folder instance for current folder
+     *
+     * @return Zend_Mail_Storage_Folder instance of current folder
+     * @throws Zend_Mail_Storage_Exception
+     */
+    public function getCurrentFolder()
+    {
+        return $this->_currentFolder;
+    }
+
+    /**
+     * magic method for serialize()
+     *
+     * with this method you can cache the mbox class
+     *
+     * @return array name of variables
+     */
+    public function __sleep()
+    {
+        return array_merge(parent::__sleep(), array('_currentFolder', '_rootFolder', '_rootdir'));
+    }
+
+    /**
+     * magic method for unserialize()
+     *
+     * with this method you can cache the mbox class
+     *
+     * @return null
+     */
+    public function __wakeup()
+    {
+        // if cache is stall selectFolder() rebuilds the tree on error
+        parent::__wakeup();
+    }
+}