User role with timeout value of 0 is getting logged out

I believe the intent is to use `hook_autologout_prevent` for that. Specifically, the module does implement that hook, and if the user timeout is set to 0, it is deleting the relevant session variable.

  // If user has no timeout set.
  if (\Drupal::service('autologout.manager')->getUserTimeout() === 0) {
    autologout_check_session_variable();
    return TRUE;
  }

/**
 * Helper function to unset the autologout session variable if present.
 */
function autologout_check_session_variable() {
  $currentRequest = \Drupal::service('request_stack')->getCurrentRequest();
  $session = $currentRequest->getSession()->get('autologout_last');
  if (isset($session)) {
    $currentRequest->getSession()->remove('autologout_last');
  }
}

So in the code you're looking at: `$session` should be null (and PHP will likely convert it to 0 when doing math), `$now` will be some horrifically large number (e.g., 1718311268), and `$diff` will be equal to $now.

A quick fix might be to implement the hook yourself, and if the user timeout is 0, set the session variable to some unreasonably high number, like "$now + $padding + 1". You'll likely want to make sure your hook implementation runs last as well.

/**
 * Implements hook_autologout_prevent().
 */
function mymodule_autologout_prevent() {
  $manager = \Drupal::service('autologout.manager');
  // If user has no timeout set.
  if ($manager->getUserTimeout() === 0) {
    $now = \Drupal::time()->getCurrentTime();
    $padding = \Drupal::config('autologout.settings')->get('padding');
    $currentRequest = \Drupal::service('request_stack')->getCurrentRequest();
    $currentRequest->getSession()->('autologout_last', $now+$padding+1);
    return TRUE;
  }
}

The part of the code you're referring to should not be relevant as there is a check above it, that prevents the code to even go to that part. The check is

if ($this->autoLogoutManager->preventJs()) {
      return;
}

I've tested this and have no issues when admin role has the timeout set to 0. It does not log me out. I've also tried with enabling the force on admin pages checkbox checked.

Without knowing what other contrib or custom modules you have added it's hard to debug where the issue lies.

You can try coding something like @lisagodare → suggested or try disabling modules and then enabling them back one by one, to see which one is interfering with the autologout.