manager.php
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<?php
/**
* Copyright (c) 2013 Robin Appelman <icewind@owncloud.com>
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
namespace OC\Group;
use OC\Hooks\PublicEmitter;
/**
* Class Manager
*
* Hooks available in scope \OC\Group:
* - preAddUser(\OC\Group\Group $group, \OC\User\User $user)
* - postAddUser(\OC\Group\Group $group, \OC\User\User $user)
* - preRemoveUser(\OC\Group\Group $group, \OC\User\User $user)
* - postRemoveUser(\OC\Group\Group $group, \OC\User\User $user)
* - preDelete(\OC\Group\Group $group)
* - postDelete(\OC\Group\Group $group)
* - preCreate(string $groupId)
* - postCreate(\OC\Group\Group $group)
*
* @package OC\Group
*/
class Manager extends PublicEmitter {
/**
* @var \OC_Group_Backend[] | \OC_Group_Database[] $backends
*/
private $backends = array();
/**
* @var \OC\User\Manager $userManager
*/
private $userManager;
/**
* @var \OC\Group\Group[]
*/
private $cachedGroups;
/**
* @param \OC\User\Manager $userManager
*/
public function __construct($userManager) {
$this->userManager = $userManager;
$cache = & $this->cachedGroups;
$this->listen('\OC\Group', 'postDelete', function ($group) use (&$cache) {
/**
* @var \OC\Group\Group $group
*/
unset($cache[$group->getGID()]);
});
}
/**
* @param \OC_Group_Backend $backend
*/
public function addBackend($backend) {
$this->backends[] = $backend;
}
public function clearBackends() {
$this->backends = array();
$this->cachedGroups = array();
}
/**
* @param string $gid
* @return \OC\Group\Group
*/
public function get($gid) {
if (isset($this->cachedGroups[$gid])) {
return $this->cachedGroups[$gid];
}
foreach ($this->backends as $backend) {
if ($backend->groupExists($gid)) {
return $this->getGroupObject($gid);
}
}
return null;
}
protected function getGroupObject($gid) {
$backends = array();
foreach ($this->backends as $backend) {
if ($backend->groupExists($gid)) {
$backends[] = $backend;
}
}
$this->cachedGroups[$gid] = new Group($gid, $backends, $this->userManager, $this);
return $this->cachedGroups[$gid];
}
/**
* @param string $gid
* @return bool
*/
public function groupExists($gid) {
return !is_null($this->get($gid));
}
/**
* @param string $gid
* @return \OC\Group\Group
*/
public function createGroup($gid) {
if (!$gid) {
return false;
} else if ($this->groupExists($gid)) {
return $this->get($gid);
} else {
$this->emit('\OC\Group', 'preCreate', array($gid));
foreach ($this->backends as $backend) {
if ($backend->implementsActions(OC_GROUP_BACKEND_CREATE_GROUP)) {
$backend->createGroup($gid);
$group = $this->getGroupObject($gid);
$this->emit('\OC\Group', 'postCreate', array($group));
return $group;
}
}
return null;
}
}
/**
* @param string $search
* @param int $limit
* @param int $offset
* @return \OC\Group\Group[]
*/
public function search($search, $limit = null, $offset = null) {
$groups = array();
foreach ($this->backends as $backend) {
$groupIds = $backend->getGroups($search, $limit, $offset);
if (!is_null($limit)) {
$limit -= count($groupIds);
}
if (!is_null($offset)) {
$offset -= count($groupIds);
}
foreach ($groupIds as $groupId) {
$groups[$groupId] = $this->getGroupObject($groupId);
}
if (!is_null($limit) and $limit <= 0) {
return array_values($groups);
}
}
return array_values($groups);
}
/**
* @param \OC\User\User $user
* @return \OC\Group\Group[]
*/
public function getUserGroups($user) {
$groups = array();
foreach ($this->backends as $backend) {
$groupIds = $backend->getUserGroups($user->getUID());
foreach ($groupIds as $groupId) {
$groups[$groupId] = $this->getGroupObject($groupId);
}
}
return array_values($groups);
}
}