/**
* Private method for mailbox listing (LSUB)
*
* @param string $root Optional root folder
* @param string $name Optional name pattern
* @param mixed $filter Optional filter
* @param string $rights Optional ACL requirements
*
* @return array List of subscribed folders
* @see rcube_imap::list_mailboxes()
* @access private
*/
private function _list_mailboxes($root = '', $name = '*', $filter = null, $rights = null)
{
$a_defaults = $a_out = array();
// Give plugins a chance to provide a list of mailboxes
$data = rcmail::get_instance()->plugins->exec_hook('mailboxes_list', array('root' => $root, 'name' => $name, 'filter' => $filter, 'mode' => 'LSUB'));
if (isset($data['folders'])) {
$a_folders = $data['folders'];
} else {
if (!$this->conn->connected()) {
return null;
} else {
// Server supports LIST-EXTENDED, we can use selection options
$config = rcmail::get_instance()->config;
// #1486225: Some dovecot versions returns wrong result using LIST-EXTENDED
if (!$config->get('imap_force_lsub') && $this->get_capability('LIST-EXTENDED')) {
// This will also set mailbox options, LSUB doesn't do that
$a_folders = $this->conn->listMailboxes($root, $name, NULL, array('SUBSCRIBED'));
// unsubscribe non-existent folders, remove from the list
// we can do this only when LIST response is available
if (is_array($a_folders) && $name == '*' && !empty($this->conn->data['LIST'])) {
foreach ($a_folders as $idx => $folder) {
if (($opts = $this->conn->data['LIST'][$folder]) && in_array('\\NonExistent', $opts)) {
$this->conn->unsubscribe($folder);
unset($a_folders[$idx]);
}
}
}
} else {
$a_folders = $this->conn->listSubscribed($root, $name);
// unsubscribe non-existent folders, remove them from the list,
// we can do this only when LIST response is available
if (is_array($a_folders) && $name == '*' && !empty($this->conn->data['LIST'])) {
foreach ($a_folders as $idx => $folder) {
if (!isset($this->conn->data['LIST'][$folder]) || in_array('\\Noselect', $this->conn->data['LIST'][$folder])) {
// Some servers returns \Noselect for existing folders
if (!$this->mailbox_exists($folder)) {
$this->conn->unsubscribe($folder);
unset($a_folders[$idx]);
}
}
}
}
}
}
}
if (!is_array($a_folders) || !sizeof($a_folders)) {
$a_folders = array();
}
return $a_folders;
}
/**
* Checks IMAP connection.
*
* @return boolean TRUE on success, FALSE on failure
*/
public function is_connected()
{
return $this->conn->connected();
}
/**
* Sets delimiter and namespaces
*
* @access private
*/
private function set_env()
{
if ($this->delimiter !== null && $this->namespace !== null) {
return;
}
if (isset($_SESSION['imap_namespace']) && isset($_SESSION['imap_delimiter'])) {
$this->namespace = $_SESSION['imap_namespace'];
$this->delimiter = $_SESSION['imap_delimiter'];
return;
}
$config = rcmail::get_instance()->config;
$imap_personal = $config->get('imap_ns_personal');
$imap_other = $config->get('imap_ns_other');
$imap_shared = $config->get('imap_ns_shared');
$imap_delimiter = $config->get('imap_delimiter');
if (!$this->conn->connected()) {
return;
}
$ns = $this->conn->getNamespace();
// Set namespaces (NAMESPACE supported)
if (is_array($ns)) {
$this->namespace = $ns;
} else {
$this->namespace = array('personal' => NULL, 'other' => NULL, 'shared' => NULL);
}
if ($imap_delimiter) {
$this->delimiter = $imap_delimiter;
}
if (empty($this->delimiter)) {
$this->delimiter = $this->namespace['personal'][0][1];
}
if (empty($this->delimiter)) {
$this->delimiter = $this->conn->getHierarchyDelimiter();
}
if (empty($this->delimiter)) {
$this->delimiter = '/';
}
// Overwrite namespaces
if ($imap_personal !== null) {
$this->namespace['personal'] = NULL;
foreach ((array) $imap_personal as $dir) {
$this->namespace['personal'][] = array($dir, $this->delimiter);
}
}
if ($imap_other !== null) {
$this->namespace['other'] = NULL;
foreach ((array) $imap_other as $dir) {
if ($dir) {
$this->namespace['other'][] = array($dir, $this->delimiter);
}
}
}
if ($imap_shared !== null) {
$this->namespace['shared'] = NULL;
foreach ((array) $imap_shared as $dir) {
if ($dir) {
$this->namespace['shared'][] = array($dir, $this->delimiter);
}
}
}
$_SESSION['imap_namespace'] = $this->namespace;
$_SESSION['imap_delimiter'] = $this->delimiter;
}
