Support for auth scripts?

[poVoq]

Would be nice if there was support for referencing small scripts to authenticate users against an API or an external database.

Specifically I would like to link this to my Fediverse instance similar to how it can be done with an XMPP server: https://docs.akkoma.dev/stable/configuration/integrations/howto_ejabberd/

(I am aware of the LDAP option, but it complicates user management too much otherwise).

Thanks!

[bohwaz]

Implemented, please test and report :)

[poVoq]

I am trying this now, but both my code and the function example returns an error like this:

TypeError
call_user_func(): Argument #1 ($callback) must be a valid callback, function "my_login" not found or invalid function name

This is when I directly uncomment the function in the config file. I guess that is not possible.

Edit: making it a static function breaks karadav completely ;)

[poVoq]

Ok I can get it somewhat to work with the class option when I add a MyAuthClass.php into the /lib folder with the following content:

<?php
class MyAuthClass {
        static function login(string $user, string $password) {
                return ($user == 'me' && $password == 'secret');
        }
}

However this only works with the correct me && secret. If you enter anything wrong the following error shows:

TypeError
KaraDAV\Users::login(): Return value must be of type ?stdClass, bool returned

which refers to the return false; in /data/ssd/outmode/karadav/lib/KaraDAV/Users.php:170

Edit: this also works with my own auth code for Akkoma, but only if the correct user credentials are provided.

[bohwaz]

TypeError
call_user_func(): Argument #1 ($callback) must be a valid callback, function "my_login" not found or invalid function name

It's because you put the my_login function in config.local.php which is in the KaraDAV namespace.

Fix it with: const AUTH_CALLBACK = 'KaraDAV\my_login';

KaraDAV\Users::login(): Return value must be of type ?stdClass, bool returned

Fixed thanks.

[poVoq]

Seems all working now :+1: I shared my auth script for Akkoma here:

https://meta.akkoma.dev/t/webdav-cloud-storage/466/2