src/Module/Security/TwoFactor/Verify.php

   1 <?php
   2
   3 namespace Friendica\Module\Security\TwoFactor;
   4
   5 use Friendica\BaseModule;
   6 use Friendica\Core\Renderer;
   7 use Friendica\Core\Session;
   8 use Friendica\DI;
   9 use PragmaRX\Google2FA\Google2FA;
  10
  11 /**
  12  * Page 1: Authenticator code verification
  13  *
  14  * @package Friendica\Module\TwoFactor
  15  */
  16 class Verify extends BaseModule
  17 {
  18         private static $errors = [];
  19
  20         public static function post(array $parameters = [])
  21         {
  22                 if (!local_user()) {
  23                         return;
  24                 }
  25
  26                 if (($_POST['action'] ?? '') == 'verify') {
  27                         self::checkFormSecurityTokenRedirectOnError('2fa', 'twofactor_verify');
  28
  29                         $a = DI::app();
  30
  31                         $code = $_POST['verify_code'] ?? '';
  32
  33                         $valid = (new Google2FA())->verifyKey(DI::pConfig()->get(local_user(), '2fa', 'secret'), $code);
  34
  35                         // The same code can't be used twice even if it's valid
  36                         if ($valid && Session::get('2fa') !== $code) {
  37                                 Session::set('2fa', $code);
  38
  39                                 // Resume normal login workflow
  40                                 DI::auth()->setForUser($a, $a->user, true, true);
  41                         } else {
  42                                 self::$errors[] = DI::l10n()->t('Invalid code, please retry.');
  43                         }
  44                 }
  45         }
  46
  47         public static function content(array $parameters = [])
  48         {
  49                 if (!local_user()) {
  50                         DI::baseUrl()->redirect();
  51                 }
  52
  53                 // Already authenticated with 2FA token
  54                 if (Session::get('2fa')) {
  55                         DI::baseUrl()->redirect();
  56                 }
  57
  58                 return Renderer::replaceMacros(Renderer::getMarkupTemplate('twofactor/verify.tpl'), [
  59                         '$form_security_token' => self::getFormSecurityToken('twofactor_verify'),
  60
  61                         '$title'            => DI::l10n()->t('Two-factor authentication'),
  62                         '$message'          => DI::l10n()->t('<p>Open the two-factor authentication app on your device to get an authentication code and verify your identity.</p>'),
  63                         '$errors_label'     => DI::l10n()->tt('Error', 'Errors', count(self::$errors)),
  64                         '$errors'           => self::$errors,
  65                         '$recovery_message' => DI::l10n()->t('Don’t have your phone? <a href="%s">Enter a two-factor recovery code</a>', '2fa/recovery'),
  66                         '$verify_code'      => ['verify_code', DI::l10n()->t('Please enter a code from your authentication app'), '', '', 'required', 'autofocus placeholder="000000"', 'tel'],
  67                         '$verify_label'     => DI::l10n()->t('Verify code and complete login'),
  68                 ]);
  69         }
  70 }