Typo3 FE 编程登录

Question

In Typo3 post v10 onwards, how can I log in an FE user programmatically with just a user Id number, using the new authentication services and without having to render a form to submit?

I have a custom Typo3 v10 plugin that authenticates users and has worked fine in Typo3 v9 and v10. After checking credentials, I use the following:

$userToLogin = 123; //known user id.

$feUser = $GLOBALS['TSFE']->fe_user;
unset($feUser->user);
$feUser->createUserSession($userToLogin);
$feUser->loginSessionStarted = TRUE;
$feUser->user = $feUser->fetchUserSession();
$GLOBALS['TSFE']->loginUser = 1;
$GLOBALS['TSFE']->initUserGroups(); 

//reload the page so that restricted subpages appear in menus
$this->redirectToUri($this->linkThisPage);
            

I need to upgrade to V11 and thus to use the authentication service process instead, as $GLOBALS['TSFE']->loginUser is removed in Typo3 v11.

I get it from this post that this involves setting up a custom service, which is registered in the plugin localConf.php file. The issue is about how to trigger the login process? The example linked above resorts to rendering a mostly hidden form with a "Confirm" submit button that the user must press to trigger the login process. This may work, but looks bad, as the user has already authenticated elsewhere.

Does anyone know how can I trigger the authentication process programatically in a controller, without requiring the form submission? Many thanks in advance.

Answer 1

The Authentication Service login is triggered when Typo3 finds the request parameter with a logintype=login then your authentication service can do what it needs to do