/**
* 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;
}
