Sending a form on a access restricted page leads to an exception

[mschwemer]

Scenario: There is a powermail content element on a access restricted page. When opening this page via backend preview and sending this form, an exception occurs:

In2code\Powermail\Domain\Repository\UserRepository::findByUid(): Return value must be of type In2code\Powermail\Domain\Model\User, null returned

This should be fixed.

However, when logging as a regular frontend user, the form works fine.

TYPO3: v12
Powermail: 12.4.1
php: 8.3

[kitzberger]

Can confirm this for EXT:powermail 12.5.1

Whenever using the user group simulation by the admin panel getPropertyFromLoggedInFrontendUser('uid') returns a fake, extra long uid (e.g. 9223372036854775807) for which it's not possible to find a user then. Hence the exception.

    protected function setFeuser(Mail $mail): void
    {
        if (FrontendUtility::isLoggedInFrontendUser()) {
            $userRepository = GeneralUtility::makeInstance(UserRepository::class);
            $feUserUid = FrontendUtility::getPropertyFromLoggedInFrontendUser('uid');
            $user = $userRepository->findByUid($feUserUid);
            if ($user !== null) {
                $mail->setFeuser($user);
            }
        }
    }

Maybe FrontendUtility::isLoggedInFrontendUser() should check on the array property username instead of uid? Because that's an empty string for the user group simulation.

    public static function isLoggedInFrontendUser(): bool
    {
        return !empty(ObjectUtility::getTyposcriptFrontendController()->fe_user->user['uid']);
    }