log: replace logrus with slog behind auxilia's scribe handler
Every logger field this service owned was a *logrus.Entry threaded
through a constructor, which is what logrus costs for want of a usable
default. They are slog.Default().With("component", ...) now, and the
threading is gone with them; the shared middleware's panic reports land
in the same handler, which is why the daemon sets the default before
anything that can fail.
The handler is scribe's tint handler: level from [dolt.sr.ht]log-level,
source positions, and masks keyed on the attribute path for the three
credentials this service handles — the unified-login cookie, the
Internal fernet token and the Authorization header the remotesapi reads
a PAT or a keypair JWT out of. Errors go through scribe.Err, so a culpa
error's hint reaches the operator on its own line.
logrus stays in go.mod: dolt's remotesrv.ServerArgs takes a
*logrus.Entry and nothing else. It is now confined to Config.DoltLogger,
which is the only place this service names it.
dolt-git-hook is deliberately untouched: what it writes to stderr is the
notice a pushing user reads through git, not a log.
authn: cookie, PAT, and dolt-JWT caller resolution
Add the authn package resolving the SourceHut caller across dolt.sr.ht's
three auth flows, producing core-go *auth.AuthContext values mapped onto the
pure core.Caller domain type:
- ctx.go: WithCaller/CallerFromContext (nil for anonymous, never panics) and
AsCoreCaller (maps UserType, derives Suspended).
- cookie.go: OptionalCookieMiddleware, the never-rejecting unified-login
cookie reader (fernet decrypt -> {name} -> LookupUser); any failure degrades
to anonymous so public browsing keeps working.
- token.go: ResolveBasic, the meta personal-access-token trio (offline
DecodeBearerToken -> username match -> LookupUser + revocation) with a 60s
positive cache keyed by sha512(password); TokenGrantsAllow gates
dolt.sr.ht/repos RO/RW grants (empty grants pass).
- jwt.go: ResolveDoltJWT, EdDSA JWS verification for dolt keypair auth (kid ->
KeyStore pubkey, alg=EdDSA, aud/exp/sub checked, iss ignored), reusing
dolt's creds.PubKeyToKIDStr for the kid<->pubkey integrity check.
- grpc.go: ResolveGRPCAuth dispatching Basic/Bearer/anonymous.
Meta lookup + revocation sit behind the MetaBackend interface and JWT keys
behind the KeyStore interface (implemented later by db/), so tests forge
cookies (fernet), PATs (BearerToken.Encode) and real Ed25519 JWTs against
in-memory stubs with no network or Postgres.