UserController::confirmCancel

public UserController::confirmCancel(UserInterface $user, $timestamp = 0, $hashed_pass = '')

public function confirmCancel(UserInterface $user, $timestamp = 0, $hashed_pass = '') {
  // Time out in seconds until cancel URL expires; 24 hours = 86400 seconds.
  $timeout = 86400;
  $current = REQUEST_TIME;

  // Basic validation of arguments.
  $account_data = $this->userData->get('user', $user->id());
  if (isset($account_data['cancel_method']) && !empty($timestamp) && !empty($hashed_pass)) {
    // Validate expiration and hashed password/login.
    if ($timestamp <= $current && $current - $timestamp < $timeout && $user->id() && $timestamp >= $user->getLastLoginTime() && Crypt::hashEquals($hashed_pass, user_pass_rehash($user, $timestamp))) {
      $edit = array(
        'user_cancel_notify' => isset($account_data['cancel_notify']) ? $account_data['cancel_notify'] : $this->config('user.settings')->get('notify.status_canceled'),
      );
      user_cancel($edit, $user->id(), $account_data['cancel_method']);
      // Since user_cancel() is not invoked via Form API, batch processing
      // needs to be invoked manually and should redirect to the front page
      // after completion.
      return batch_process('');
    }
    else {
      drupal_set_message(t('You have tried to use an account cancellation link that has expired. Please request a new one using the form below.'), 'error');
      return $this->redirect('entity.user.cancel_form', ['user' => $user->id()], ['absolute' => TRUE]);
    }
  }
  throw new AccessDeniedHttpException();
}