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<?php
/**
*
* Built-in authentication module. Uses VirtualBox's set/getExtraData capability
* to store / retrieve user credentials. Called from API when authentication
* functions are requested.
*
* @author Ian Moore (imoore76 at yahoo dot com)
* @copyright Copyright (C) 2010-2015 Ian Moore (imoore76 at yahoo dot com)
* @version $Id: Builtin.php 595 2015-04-17 09:50:36Z imoore76 $
* @package phpVirtualBox
* @see vboxconnector
*
*/
class phpvbAuthBuiltin implements phpvbAuth {
/**
*
* A list of capabilities describing this authentication module.
* @var array capability values:
* @var boolean canChangePassword
* @var boolean canModifyUsers
* @var boolean canLogout
*
*/
var $capabilities = array(
'canChangePassword' => true,
'canModifyUsers' => true,
'canLogout' => true
);
/**
*
* Log in function. Populates $_SESSION
* @param string $username user name
* @param string $password password
*/
function login($username, $password)
{
global $_SESSION;
$vbox = new vboxconnector(true);
$vbox->skipSessionCheck = true;
$vbox->connect();
$p = $vbox->vbox->getExtraData('phpvb/users/'.$username.'/pass');
// Check for initial login
if($username == 'admin' && !$p && !$vbox->vbox->getExtraData('phpvb/usersSetup')) {
$vbox->vbox->setExtraData('phpvb/usersSetup','1');
$vbox->vbox->setExtraData('phpvb/users/'.$username.'/pass', hash('sha512', 'admin'));
$vbox->vbox->setExtraData('phpvb/users/'.$username.'/admin', '1');
$p = hash('sha512', 'admin');
}
if($p == hash('sha512', $password)) {
$_SESSION['valid'] = true;
$_SESSION['user'] = $username;
$_SESSION['admin'] = intval($vbox->vbox->getExtraData('phpvb/users/'.$username.'/admin'));
$_SESSION['authCheckHeartbeat'] = time();
$_SESSION['uHash'] = $p;
}
}
/**
*
* Change password function.
* @param string $old old password
* @param string $new new password
* @return boolean true on success
*/
function changePassword($old, $new)
{
global $_SESSION;
// Use main / auth server
$vbox = new vboxconnector(true);
$vbox->connect();
$p = $vbox->vbox->getExtraData('phpvb/users/'.$_SESSION['user'].'/pass');
if($p == hash('sha512', $old)) {
$np = hash('sha512', $new);
$vbox->vbox->setExtraData('phpvb/users/'.$_SESSION['user'].'/pass', $np);
$response['data']['result'] = 1;
$_SESSION['uHash'] = $np;
return true;
}
return false;
}
/**
*
* Revalidate login info and set authCheckHeartbeat session variable.
* @param vboxconnector $vbox vboxconnector object instance
*/
function heartbeat($vbox)
{
global $_SESSION;
// Check to see if we only have 1 server or are already connected
// to the authentication master server
if(@$vbox->settings->authMaster || count($vbox->settings->servers) == 1) {
$vbcheck = &$vbox;
} else {
$vbcheck = new vboxconnector(true);
}
$vbcheck->connect();
$p = $vbcheck->vbox->getExtraData('phpvb/users/'.$_SESSION['user'].'/pass');
if(!@$p || @$_SESSION['uHash'] != $p) {
if(function_exists('session_destroy')) session_destroy();
unset($_SESSION['valid']);
} else {
$_SESSION['admin'] = intval($vbcheck->vbox->getExtraData('phpvb/users/'.$_SESSION['user'].'/admin'));
$_SESSION['authCheckHeartbeat'] = time();
}
if(!@$_SESSION['valid'])
throw new Exception(trans('Not logged in.','UIUsers'), vboxconnector::PHPVB_ERRNO_FATAL);
}
/**
*
* Log out user present in $_SESSION
* @param array $response response passed byref by API and populated within function
*/
function logout(&$response)
{
global $_SESSION;
if(function_exists('session_destroy')) session_destroy();
else unset($_SESSION['valid']);
$response['data']['result'] = 1;
}
/**
*
* Return a list of users
* @return array list of users
*/
function listUsers()
{
$response = array();
// Use main / auth server
$vbox = new vboxconnector(true);
$vbox->connect();
$keys = $vbox->vbox->getExtraDataKeys();
foreach($keys as $k) {
if(strpos($k,'phpvb/users/') === 0) {
$user = substr($k,12,strpos($k,'/',13)-12);
if(isset($response[$user])) continue;
$admin = intval($vbox->vbox->getExtraData('phpvb/users/'.$user.'/admin'));
$response[$user] = array('username'=>$user,'admin'=>$admin);
}
}
return $response;
}
/**
*
* Update user information such as password and admin status
* @param array $vboxRequest request passed from API representing the request. Contains user, password and administration level.
* @param boolean $skipExistCheck Do not check that the user exists first. Essentially, if this is set and the user does not exist, it is added.
*/
function updateUser($vboxRequest, $skipExistCheck)
{
global $_SESSION;
// Must be an admin
if(!$_SESSION['admin'])
return;
// Use main / auth server
$vbox = new vboxconnector(true);
$vbox->connect();
// See if it exists
if(!$skipExistCheck && $vbox->vbox->getExtraData('phpvb/users/'.$vboxRequest['u'].'/pass'))
return;
if($vboxRequest['p'])
$vbox->vbox->setExtraData('phpvb/users/'.$vboxRequest['u'].'/pass', hash('sha512', $vboxRequest['p']));
$vbox->vbox->setExtraData('phpvb/users/'.$vboxRequest['u'].'/admin', ($vboxRequest['a'] ? '1' : '0'));
}
/**
*
* Remove the user $user
* @param string $user Username to remove
*/
function deleteUser($user)
{
// Use main / auth server
$vbox = new vboxconnector(true);
$vbox->connect();
$vbox->vbox->setExtraData('phpvb/users/'.$user.'/pass','');
$vbox->vbox->setExtraData('phpvb/users/'.$user.'/admin','');
$vbox->vbox->setExtraData('phpvb/users/'.$user,'');
}
}
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