<?php
/**
* Abstract interface class for Kolab storage IMAP folder objects
*
* @author Thomas Bruederli <bruederli@kolabsys.com>
*
* Copyright (C) 2014, Kolab Systems AG <contact@kolabsys.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
abstract class kolab_storage_folder_api
{
/**
* Folder identifier
* @var string
*/
public $id;
/**
* The folder name.
* @var string
*/
public $name;
/**
* The type of this folder.
* @var string
*/
public $type;
/**
* The subtype of this folder.
* @var string
*/
public $subtype;
/**
* Is this folder set to be the default for its type
* @var boolean
*/
public $default = false;
/**
* List of direct child folders
* @var array
*/
public $children = array();
/**
* Name of the parent folder
* @var string
*/
public $parent = '';
protected $imap;
protected $owner;
protected $info;
protected $idata;
protected $namespace;
protected $metadata;
/**
* Private constructor
*/
protected function __construct($name)
{
$this->name = $name;
$this->id = kolab_storage::folder_id($name);
$this->imap = rcube::get_instance()->get_storage();
}
/**
* Returns the owner of the folder.
*
* @param boolean Return a fully qualified owner name (i.e. including domain for shared folders)
* @return string The owner of this folder.
*/
public function get_owner($fully_qualified = false)
{
// return cached value
if (isset($this->owner))
return $this->owner;
$info = $this->get_folder_info();
$rcmail = rcube::get_instance();
switch ($info['namespace']) {
case 'personal':
$this->owner = $rcmail->get_user_name();
break;
case 'shared':
$this->owner = 'anonymous';
break;
default:
list($prefix, $this->owner) = explode($this->imap->get_hierarchy_delimiter(), $info['name']);
$fully_qualified = true; // enforce email addresses (backwards compatibility)
break;
}
if ($fully_qualified && strpos($this->owner, '@') === false) {
// extract domain from current user name
$domain = strstr($rcmail->get_user_name(), '@');
// fall back to mail_domain config option
if (empty($domain) && ($mdomain = $rcmail->config->mail_domain($this->imap->options['host']))) {
$domain = '@' . $mdomain;
}
$this->owner .= $domain;
}
return $this->owner;
}
/**
* Getter for the name of the namespace to which the IMAP folder belongs
*
* @return string Name of the namespace (personal, other, shared)
*/
public function get_namespace()
{
if (!isset($this->namespace))
$this->namespace = $this->imap->folder_namespace($this->name);
return $this->namespace;
}
/**
* Get the display name value of this folder
*
* @return string Folder name
*/
public function get_name()
{
return kolab_storage::object_name($this->name);
}
/**
* Getter for the top-end folder name (not the entire path)
*
* @return string Name of this folder
*/
public function get_foldername()
{
$parts = explode($this->imap->get_hierarchy_delimiter(), $this->name);
return rcube_charset::convert(end($parts), 'UTF7-IMAP');
}
/**
* Getter for parent folder path
*
* @return string Full path to parent folder
*/
public function get_parent()
{
$delim = $this->imap->get_hierarchy_delimiter();
$path = explode($delim, $this->name);
array_pop($path);
// don't list top-level namespace folder
if (count($path) == 1 && in_array($this->get_namespace(), array('other', 'shared'))) {
$path = array();
}
return join($delim, $path);
}
/**
* Getter for the Cyrus mailbox identifier corresponding to this folder
* (e.g. user/john.doe/Calendar/Personal@example.org)
*
* @return string Mailbox ID
*/
public function get_mailbox_id()
{
$info = $this->get_folder_info();
$owner = $this->get_owner();
list($user, $domain) = explode('@', $owner);
switch ($info['namespace']) {
case 'personal':
return sprintf('user/%s/%s@%s', $user, $this->name, $domain);
case 'shared':
$ns = $this->imap->get_namespace('shared');
$prefix = is_array($ns) ? $ns[0][0] : '';
list(, $domain) = explode('@', rcube::get_instance()->get_user_name());
return substr($this->name, strlen($prefix)) . '@' . $domain;
default:
$ns = $this->imap->get_namespace('other');
$prefix = is_array($ns) ? $ns[0][0] : '';
list($user, $folder) = explode($this->imap->get_hierarchy_delimiter(), substr($info['name'], strlen($prefix)), 2);
if (strpos($user, '@')) {
list($user, $domain) = explode('@', $user);
}
return sprintf('user/%s/%s@%s', $user, $folder, $domain);
}
}
/**
* Get the color value stored in metadata
*
* @param string Default color value to return if not set
* @return mixed Color value from IMAP metadata or $default is not set
*/
public function get_color($default = null)
{
// color is defined in folder METADATA
$metadata = $this->get_metadata();
if (($color = $metadata[kolab_storage::COLOR_KEY_PRIVATE]) || ($color = $metadata[kolab_storage::COLOR_KEY_SHARED])) {
return $color;
}
return $default;
}
/**
* Returns IMAP metadata/annotations (GETMETADATA/GETANNOTATION)
* supported by kolab_storage
*
* @return array Metadata entry-value hash array on success, NULL on error
*/
public function get_metadata()
{
if ($this->metadata === null) {
$this->metadata = kolab_storage::folder_metadata($this->name);
}
return $this->metadata;
}
/**
* Sets IMAP metadata/annotations (SETMETADATA/SETANNOTATION)
*
* @param array $entries Entry-value array (use NULL value as NIL)
* @return boolean True on success, False on failure
*/
public function set_metadata($entries)
{
$this->metadata = null;
return $this->imap->set_metadata($this->name, $entries);
}
/**
*
*/
public function get_folder_info()
{
if (!isset($this->info))
$this->info = $this->imap->folder_info($this->name);
return $this->info;
}
/**
* Make IMAP folder data available for this folder
*/
public function get_imap_data()
{
if (!isset($this->idata))
$this->idata = $this->imap->folder_data($this->name);
return $this->idata;
}
/**
* Returns (full) type of IMAP folder
*
* @return string Folder type
*/
public function get_type()
{
$metadata = $this->get_metadata();
if (!empty($metadata)) {
return kolab_storage::folder_select_metadata($metadata);
}
return $this->type;
}
/**
* Get IMAP ACL information for this folder
*
* @return string Permissions as string
*/
public function get_myrights()
{
$rights = $this->info['rights'];
if (!is_array($rights))
$rights = $this->imap->my_rights($this->name);
return join('', (array)$rights);
}
/**
* Helper method to extract folder UID metadata
*
* @return string Folder's UID
*/
public function get_uid()
{
// To be implemented by extending classes
return false;
}
/**
* Check activation status of this folder
*
* @return boolean True if enabled, false if not
*/
public function is_active()
{
return kolab_storage::folder_is_active($this->name);
}
/**
* Change activation status of this folder
*
* @param boolean The desired subscription status: true = active, false = not active
*
* @return True on success, false on error
*/
public function activate($active)
{
return $active ? kolab_storage::folder_activate($this->name) : kolab_storage::folder_deactivate($this->name);
}
/**
* Check subscription status of this folder
*
* @return boolean True if subscribed, false if not
*/
public function is_subscribed()
{
return kolab_storage::folder_is_subscribed($this->name);
}
/**
* Change subscription status of this folder
*
* @param boolean The desired subscription status: true = subscribed, false = not subscribed
*
* @return True on success, false on error
*/
public function subscribe($subscribed)
{
return $subscribed ? kolab_storage::folder_subscribe($this->name) : kolab_storage::folder_unsubscribe($this->name);
}
/**
* Return folder name as string representation of this object
*
* @return string Full IMAP folder name
*/
public function __toString()
{
return $this->name;
}
}
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