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<?php
declare(strict_types=1);
use JetBrains\PhpStorm\NoReturn;
require_once('inc/session.inc.php');
class User
{
private static $user = false;
public static function isLoggedIn(): bool
{
return self::$user !== false;
}
public static function getId()
{
if (!self::isLoggedIn())
return false;
return self::$user['userid'];
}
public static function getName()
{
if (!self::isLoggedIn())
return false;
return self::$user['fullname'];
}
public static function hasPermission(string $permission, ?int $locationid = NULL): bool
{
if (!self::isLoggedIn())
return false;
if (Module::isAvailable("permissionmanager")) {
if ($permission[0] === '.') {
$permission = substr($permission, 1);
} else {
if (class_exists('Page')) {
$module = Page::getModule();
if ($module !== false) {
$module = $module->getIdentifier();
}
} else {
$module = strtolower(Request::any('do'));
}
$permission = $module ? $module . "." . $permission : $permission;
}
return PermissionUtil::userHasPermission(self::$user['userid'], $permission, $locationid);
}
if (self::$user['permissions'] & Permission::get('superadmin'))
return true;
return (self::$user['permissions'] & Permission::get($permission)) != 0;
}
/**
* Confirm current user has the given permission, stop execution and show error message
* otherwise.
*
* @param string $permission Permission to check for
* @param null|int $locationid location this permission has to apply to, NULL if any location is sufficient
* @param null|string $redirect page to redirect to if permission is not given, NULL defaults to main page
*/
public static function assertPermission(string $permission, ?int $locationid = NULL, ?string $redirect = NULL): void
{
if (User::hasPermission($permission, $locationid))
return;
if (AJAX) {
Message::renderList();
exit;
}
if (!is_null($redirect)) {
Message::addError('main.no-permission');
Util::redirect($redirect);
} elseif (Module::isAvailable('permissionmanager')) {
if ($permission[0] !== '.') {
$module = Page::getModule();
if ($module !== false) {
$permission = '.' . $module->getIdentifier() . '.' . $permission;
}
}
Util::redirect('?do=permissionmanager&show=denied&permission=' . urlencode($permission));
} else {
Message::addError('main.no-permission');
Util::redirect('?do=main');
}
}
public static function getAllowedLocations(string $permission): array
{
if (!self::isLoggedIn())
return [];
if (Module::isAvailable("permissionmanager")) {
if ($permission[0] === '.') {
$permission = substr($permission, 1);
} else {
$module = Page::getModule();
$permission = $module ? $module->getIdentifier() . "." . $permission : $permission;
}
return PermissionUtil::getAllowedLocations(self::$user['userid'], $permission);
}
if (self::$user['permissions'] & Permission::get('superadmin')) {
if (Module::isAvailable('locations')) {
$a = array_keys(Location::getLocationsAssoc());
$a[] = 0;
} else {
$a = [0];
}
return $a;
}
return [];
}
public static function load(): bool
{
if (self::isLoggedIn())
return true;
if (Session::load()) {
if (empty(Session::get('token'))) {
self::generateToken();
}
$uid = Session::getUserId();
if ($uid < 1)
self::logout();
self::$user = Database::queryFirst('SELECT * FROM user WHERE userid = :uid LIMIT 1', array(':uid' => $uid));
if (self::$user === false)
self::logout();
settype(self::$user['userid'], 'int');
return true;
}
return false;
}
public static function testPassword(string $userid, string $password): bool
{
$ret = Database::queryFirst('SELECT passwd FROM user WHERE userid = :userid LIMIT 1', compact('userid'));
if ($ret === false)
return false;
return Crypto::verify($password, $ret['passwd']);
}
public static function updatePassword(string $password): bool
{
if (!self::isLoggedIn())
return false;
$passwd = Crypto::hash6($password);
$userid = self::getId();
return Database::exec('UPDATE user SET passwd = :passwd WHERE userid = :userid LIMIT 1', compact('userid', 'passwd')) > 0;
}
public static function login(string $user, string $pass, bool $fixedIp): bool
{
$ret = Database::queryFirst('SELECT userid, passwd FROM user WHERE login = :user LIMIT 1', array(':user' => $user));
if ($ret === false)
return false;
if (!Crypto::verify($pass, $ret['passwd']))
return false;
Session::create($ret['passwd'], (int)$ret['userid'], $fixedIp);
self::generateToken($ret['passwd']);
return true;
}
#[NoReturn]
public static function logout(): void
{
Session::delete();
Header('Location: ?do=Main&fromlogout');
exit(0);
}
public static function setLastSeenEvent(int $eventid): void
{
if (!self::isLoggedIn())
return;
Database::exec("UPDATE user SET lasteventid = :eventid WHERE userid = :userid LIMIT 1", array(
'eventid' => $eventid,
'userid' => self::$user['userid']
));
self::$user['lasteventid'] = $eventid;
}
public static function getLastSeenEvent()
{
if (!self::isLoggedIn())
return false;
return self::$user['lasteventid'];
}
private static function generateToken($salt = ''): void
{
Session::set('token', md5($salt . ','
. rand() . ','
. time() . ','
. rand() . ','
. $_SERVER['REMOTE_ADDR'] . ','
. rand() . ','
. $_SERVER['REMOTE_PORT'] . ','
. rand() . ','
. $_SERVER['HTTP_USER_AGENT']), false);
}
}
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