LDAP Authentication

[NoraCodes]

Is your proposal related to a problem?

In a sense! I want to be able to integrate Lemmy with a few other services, like Mastodon and DokuWiki. Users would be able to sign up once and get access to all services with the same password.

Describe the solution you'd like

Some kind of LDAP-based auth, or some kind of universal interface for auth so I can implement LDAP through an external service.

Describe alternatives you've considered

It would be possible to insert password hashes into the database, but this would be fragile.

Additional context

LDAP has been mentioned a few times on Mastodon and Gitter, but nobody ever opened an issue.

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[nikhiljha]

#489 is related

TL;DR: The author is open to a pull request but doesn't plan to work on this feature themselves.

The good news is I actually found a low-maintenance-burden solution to this for another Rust/Actix project. Maybe eventually(TM) I can add that to Lemmy as well.

[ccoenen]

if you could link to that other project, maybe it also helps a third party porting it over here?

[poVoq]

https://github.com/inejge/ldap3

Seems to be an actively maintained LDAP client library for Rust.

The implementation target could be this simplified LDAP server:
https://github.com/nitnelave/lldap
(which happens to be written also in Rust)

[lullis]

If there is no one working on this, I'd love to try. Caveat, I have written maybe 20 lines of Rust in my life so far and I would definitely need a mentor of sorts.