bug: Trusted Header auth not working

I am unable to setup trusted header auth with computer. Already running fine with Open WebU, Authelia and Traefik.

After doing the initial setup, I modify config.toml with the following.

[auth]
mode = "trusted_header"
header = "Remote-User"
trusted_sources = ["172.16.2.2"]

The endpoint /api/auth always returns {"authenticated":false}.

Reviewing the code, I believe check_access needs to send remote_user_header https://github.com/open-webui/computer/blob/3b0e0f8dc384434a09d76bb9776e0511698eb2b4/cptr/routers/auth.py#L57

Though if that's added in then the following is returned AuthResult(user_id=None, username='<redacted>', role='user', exp=0) and it never enters the next block because user_id is None.

https://github.com/open-webui/computer/blob/3b0e0f8dc384434a09d76bb9776e0511698eb2b4/cptr/routers/auth.py#L59

Not sure what the correct fix is but that is my investigation so far.

Start in cptr/routers/auth.py around the check_access logic at the referenced lines, and reproduce the issue with the supplied config.toml trusted_header settings. Trace the /api/auth response through the remote-user header and AuthResult handling; done means a trusted request returns authenticated=true with a populated user identity.