misuzu/public/auth/twofactor.php

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2022-09-13 13:14:49 +00:00
<?php
namespace Misuzu;
use Misuzu\Users\User;
use Misuzu\Users\UserLoginAttempt;
use Misuzu\Users\UserSession;
use Misuzu\Users\UserSessionCreationFailedException;
use Misuzu\Users\UserAuthSession;
use Misuzu\Users\UserAuthSessionNotFoundException;
require_once '../../misuzu.php';
if(UserSession::hasCurrent()) {
url_redirect('index');
return;
}
$ipAddress = $_SERVER['REMOTE_ADDR'];
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$twofactor = !empty($_POST['twofactor']) && is_array($_POST['twofactor']) ? $_POST['twofactor'] : [];
$notices = [];
$remainingAttempts = UserLoginAttempt::remaining($ipAddress);
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try {
$tokenInfo = UserAuthSession::byToken(
!empty($_GET['token']) && is_string($_GET['token']) ? $_GET['token'] : (
!empty($twofactor['token']) && is_string($twofactor['token']) ? $twofactor['token'] : ''
)
);
} catch(UserAuthSessionNotFoundException $ex) {}
if(empty($tokenInfo) || $tokenInfo->hasExpired()) {
url_redirect('auth-login');
return;
}
$userInfo = $tokenInfo->getUser();
// checking user_totp_key specifically because there's a fringe chance that
// there's a token present, but totp is actually disabled
if(!$userInfo->hasTOTP()) {
url_redirect('auth-login');
return;
}
while(!empty($twofactor)) {
if(!CSRF::validateRequest()) {
$notices[] = 'Was unable to verify the request, please try again!';
break;
}
$userAgent = $_SERVER['HTTP_USER_AGENT'] ?? '';
$redirect = !empty($twofactor['redirect']) && is_string($twofactor['redirect']) ? $twofactor['redirect'] : '';
if(empty($twofactor['code']) || !is_string($twofactor['code'])) {
$notices[] = 'Code field was empty.';
break;
}
if($remainingAttempts < 1) {
$notices[] = 'There are too many failed login attempts from your IP address, please try again later.';
break;
}
if(!in_array($twofactor['code'], $userInfo->getValidTOTPTokens())) {
$notices[] = sprintf(
"Invalid two factor code, %d attempt%s remaining",
$remainingAttempts - 1,
$remainingAttempts === 2 ? '' : 's'
);
UserLoginAttempt::create($ipAddress, false, $userInfo);
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break;
}
UserLoginAttempt::create($ipAddress, true, $userInfo);
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$tokenInfo->delete();
try {
$sessionInfo = UserSession::create($userInfo);
$sessionInfo->setCurrent();
} catch(UserSessionCreationFailedException $ex) {
$notices[] = "Something broke while creating a session for you, please tell an administrator or developer about this!";
break;
}
$authToken = AuthToken::create($userInfo, $sessionInfo);
setcookie('msz_auth', $authToken->pack(), $sessionInfo->getExpiresTime(), '/', msz_cookie_domain(), !empty($_SERVER['HTTPS']), true);
if(!is_local_url($redirect)) {
$redirect = url('index');
}
redirect($redirect);
return;
}
Template::render('auth.twofactor', [
'twofactor_notices' => $notices,
'twofactor_redirect' => !empty($_GET['redirect']) && is_string($_GET['redirect']) ? $_GET['redirect'] : url('index'),
'twofactor_attempts_remaining' => $remainingAttempts,
'twofactor_token' => $tokenInfo->getToken(),
]);