src/Module/TwoFactor/Verify.php

   1 <?php
   2
   3 namespace Friendica\Module\TwoFactor;
   4
   5 use Friendica\BaseModule;
   6 use Friendica\App\Authentication;
   7 use Friendica\Core\L10n;
   8 use Friendica\Core\PConfig;
   9 use Friendica\Core\Renderer;
  10 use Friendica\Core\Session;
  11 use PragmaRX\Google2FA\Google2FA;
  12
  13 /**
  14  * Page 1: Authenticator code verification
  15  *
  16  * @package Friendica\Module\TwoFactor
  17  */
  18 class Verify extends BaseModule
  19 {
  20         private static $errors = [];
  21
  22         public static function post(array $parameters = [])
  23         {
  24                 if (!local_user()) {
  25                         return;
  26                 }
  27
  28                 if (($_POST['action'] ?? '') == 'verify') {
  29                         self::checkFormSecurityTokenRedirectOnError('2fa', 'twofactor_verify');
  30
  31                         $a = self::getApp();
  32
  33                         $code = $_POST['verify_code'] ?? '';
  34
  35                         $valid = (new Google2FA())->verifyKey(PConfig::get(local_user(), '2fa', 'secret'), $code);
  36
  37                         // The same code can't be used twice even if it's valid
  38                         if ($valid && Session::get('2fa') !== $code) {
  39                                 Session::set('2fa', $code);
  40
  41                                 // Resume normal login workflow
  42                                 /** @var Authentication $authentication */
  43                                 $authentication = self::getClass(Authentication::class);
  44                                 $authentication->setForUser($a, $a->user, true, true);
  45                         } else {
  46                                 self::$errors[] = L10n::t('Invalid code, please retry.');
  47                         }
  48                 }
  49         }
  50
  51         public static function content(array $parameters = [])
  52         {
  53                 if (!local_user()) {
  54                         self::getApp()->internalRedirect();
  55                 }
  56
  57                 // Already authenticated with 2FA token
  58                 if (Session::get('2fa')) {
  59                         self::getApp()->internalRedirect();
  60                 }
  61
  62                 return Renderer::replaceMacros(Renderer::getMarkupTemplate('twofactor/verify.tpl'), [
  63                         '$form_security_token' => self::getFormSecurityToken('twofactor_verify'),
  64
  65                         '$title'            => L10n::t('Two-factor authentication'),
  66                         '$message'          => L10n::t('<p>Open the two-factor authentication app on your device to get an authentication code and verify your identity.</p>'),
  67                         '$errors_label'     => L10n::tt('Error', 'Errors', count(self::$errors)),
  68                         '$errors'           => self::$errors,
  69                         '$recovery_message' => L10n::t('Don’t have your phone? <a href="%s">Enter a two-factor recovery code</a>', '2fa/recovery'),
  70                         '$verify_code'      => ['verify_code', L10n::t('Please enter a code from your authentication app'), '', '', 'required', 'autofocus placeholder="000000"', 'tel'],
  71                         '$verify_label'     => L10n::t('Verify code and complete login'),
  72                 ]);
  73         }
  74 }