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<?php namespace WT;
// webtrees: Web based Family History software
// Copyright (C) 2014 webtrees development team
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
use WT_Tree;
use Zend_Session;
/**
* Class Auth - authentication functions
*/
class Auth {
/**
* Are we currently logged in?
*
* @return bool
*/
public static function check() {
return Auth::id() !== null;
}
/**
* Is the specified/current user an administrator?
*
* @param User|null $user
*
* @return bool
*/
public static function isAdmin(User $user = null) {
if ($user === null) {
$user = self::user();
}
return $user && $user->getSetting('canadmin') === '1';
}
/**
* Is a user a manager of a tree?
*
* @param WT_Tree|null $tree
* @param User|null $user
*
* @return bool
*/
public static function isManager(WT_Tree $tree = null, User $user = null) {
global $WT_TREE;
if ($tree === null) {
$tree = $WT_TREE;
}
if ($user === null) {
$user = self::user();
}
return self::isAdmin($user) || $user && $tree->userPreference($user->getUserId(), 'canedit') === 'admin';
}
/**
* Is a user a moderator of a tree?
*
* @param WT_Tree|null $tree
* @param User|null $user
*
* @return bool
*/
public static function isModerator(WT_Tree $tree = null, User $user = null) {
global $WT_TREE;
if ($tree === null) {
$tree = $WT_TREE;
}
if ($user === null) {
$user = self::user();
}
return self::isManager($tree, $user) || $user && $tree->userPreference($user->getUserId(), 'canedit') === 'accept';
}
/**
* Is a user an editor of a tree?
*
* @param WT_Tree|null $tree
* @param User|null $user
*
*
* @return bool
*/
public static function isEditor(WT_Tree $tree = null, User $user = null) {
global $WT_TREE;
if ($tree === null) {
$tree = $WT_TREE;
}
if ($user === null) {
$user = self::user();
}
return self::isModerator($tree, $user) || $user && $tree->userPreference($user->getUserId(), 'canedit') === 'edit';
}
/**
* Is a user a member of a tree?
*
* @param WT_Tree|null $tree
* @param User|null $user
*
* @return bool
*/
public static function isMember(WT_Tree $tree = null, User $user=null) {
global $WT_TREE;
if ($tree === null) {
$tree = $WT_TREE;
}
if ($user === null) {
$user = self::user();
}
return self::isEditor($tree, $user) || $user && $tree->userPreference($user->getUserId(), 'canedit') === 'access';
}
/**
* The ID of the authenticated user, from the current session.
*
* @return string|null
*/
public static function id() {
global $WT_SESSION;
return $WT_SESSION ? $WT_SESSION->wt_user : null;
}
/**
* The authenticated user, from the current session.
*
* @return User|null
*/
public static function user() {
return User::find(Auth::id());
}
/**
* Login directly as an explicit user - for masquerading.
*
* @param User $user
*/
public static function login(User $user) {
global $WT_SESSION;
$WT_SESSION->wt_user = $user->getUserId();
Zend_Session::regenerateId();
}
/**
* End the session for the current user.
*/
public static function logout() {
Zend_Session::regenerateId();
Zend_Session::destroy();
}
}
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