/** * get root folder or given folder * * @param string $rootFolder get folder structure for given folder, else root * @throws Exception\RuntimeException * @throws Exception\InvalidArgumentException * @throws \Zend\Mail\Protocol\Exception\RuntimeException * @return \Zend\Mail\Storage\Folder root or wanted folder */ public function getFolders($rootFolder = null) { $folders = $this->protocol->listMailbox((string) $rootFolder); if (!$folders) { throw new Exception\InvalidArgumentException('folder not found'); } ksort($folders, SORT_STRING); $root = new Folder('/', '/', false); $stack = array(null); $folderStack = array(null); $parentFolder = $root; $parent = ''; foreach ($folders as $globalName => $data) { do { if (!$parent || strpos($globalName, $parent) === 0) { $pos = strrpos($globalName, $data['delim']); if ($pos === false) { $localName = $globalName; } else { $localName = substr($globalName, $pos + 1); } $selectable = !$data['flags'] || !in_array('\\Noselect', $data['flags']); array_push($stack, $parent); $parent = $globalName . $data['delim']; $folder = new Folder($localName, $globalName, $selectable); $parentFolder->$localName = $folder; array_push($folderStack, $parentFolder); $parentFolder = $folder; break; } elseif ($stack) { $parent = array_pop($stack); $parentFolder = array_pop($folderStack); } } while ($stack); if (!$stack) { throw new Exception\RuntimeException('error while constructing folder tree'); } } return $root; }