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shankar0123
51f9cf13dc
The biggest single-sprint cut so far (-502 lines) and the FIRST split
that moves EXPORTED helpers. Public-surface invariant verified end-to-
end via broader-importer build (cmd/server + internal/auth +
internal/api/...).
What moved
==========
internal/config/auth.go (new, 601 lines including BSL header +
Phase 9 doc-comment + 4 imports +
5 types + 3 helpers)
Five types:
- NamedAPIKey (one named API-key entry; admin flag for
actor attribution in audit trail)
- AuthType (+ 3 consts: AuthTypeAPIKey / AuthTypeNone /
AuthTypeOIDC — the typed enum that
replaced the pre-G-1 string-literal
map. "jwt" stays out forever per
ValidAuthTypes() invariant pinned by
config_test.go's property test)
- AuthConfig (top-level: Type, Secret, NamedKeys,
AgentBootstrapToken + DenyEmpty flag,
Session, TrustedProxies, DemoModeAck +
TS + ResidualStrict, OIDC pre-login
binding knobs, Breakglass,
BootstrapAdminGroups + ProviderID +
BootstrapToken)
- SessionConfig (Auth Bundle 2 Phase 4: IdleTimeout,
AbsoluteTimeout, SigningKeyRetention,
GCInterval, SameSite, BindIP,
BindUserAgent)
- BreakglassConfig (Auth Bundle 2 Phase 7.5: Enabled +
LockoutThreshold + Duration + Reset)
Three helpers (TWO exported — first sprint to move public-API):
- ValidAuthTypes() — single source of truth for the allowed
CERTCTL_AUTH_TYPE set. EXPORTED.
External callers (verified clean via
broader-importer build):
cmd/server/main.go:115
internal/auth/middleware.go (doc ref)
internal/api/handler/health.go (doc ref)
- ParseNamedAPIKeys() — parses CERTCTL_API_KEYS_NAMED with
L-004 rotation-aware duplicate-name
handling + slog.Info "rotation window
active" observability. EXPORTED.
Test caller in config_test.go +
production caller in Load() in
config.go (intra-package, resolves
via same-package lookup after move).
- isValidKeyName() — alphanumeric + hyphen + underscore
validator. Unexported; only called
from ParseNamedAPIKeys (intra-file
edge after the move — one fewer
cross-file edge).
External-importer surface (verified resolves clean post-move)
==============================================================
The package name stays `config`, so every external reference
continues to resolve. Live grep confirms the surface:
cmd/server/main.go:
- config.AuthType(...) (cast)
- config.AuthTypeNone (const)
- config.AuthTypeAPIKey (const)
- config.AuthTypeOIDC (const)
- config.ValidAuthTypes() (func)
cmd/server/auth_backfill.go:
- config.AuthType(...) (cast)
- config.AuthTypeNone (const)
internal/auth/middleware.go:
- config.AuthType (doc reference + field-comment)
- config.AuthTypeConsts (doc reference)
internal/api/handler/health.go:
- config.AuthType + config.ValidAuthTypes() (doc references)
Verification (the critical broader-importer build):
go build ./cmd/server/... ./internal/auth/...
./internal/api/router/... ./internal/api/handler/...
./internal/scheduler/... → clean
If the move had accidentally renamed a symbol or changed a
package boundary, that broader build would have failed loud.
What stayed in config.go (intentionally)
========================================
- ErrAgentBootstrapTokenRequired sentinel (top-of-file Phase-2
sentinel block) — tied to Validate()'s fail-closed behavior,
not to AuthConfig's struct shape. Same precedent as Sprint 2's
ErrACMEInsecureWithoutAck and Sprint 3's leaving
ErrDemoModeAckExpired in place.
- demoModeAckMaxAge const (top-of-file) — tied to Validate()'s
24h TS-freshness check, not to struct shape.
- The Validate() body that branches on AuthType / DemoModeAck /
AgentBootstrapTokenDenyEmpty / DemoModeResidualStrict — cross-
cutting validation logic that stays where the other
Validate() branches live.
- The Load() body that calls ParseNamedAPIKeys() during initial
cfg.Auth.NamedKeys construction; same-package resolution.
- Shared getEnv / getEnvBool / getEnvInt / getEnvDuration +
splitComma + trimSpace helpers (splitComma + trimSpace are
used by ParseNamedAPIKeys via same-package lookup).
Edit shape
==========
Two sed passes (the now-standard Sprint-3-onward pattern):
1. sed -i '847,1204d' — deleted the 358-line struct + enum +
ValidAuthTypes block.
2. sed -i '1925,2068d' — deleted the 144-line helper block
(positions shifted by Sprint 5's struct removal already
applied; ParseNamedAPIKeys' new doc-comment start moved
from 2283 → 1925).
Then gofmt -w. No residual double-blank-line at either join —
both removals happened mid-blank-separated regions cleanly.
Public-surface invariant
========================
Every type, exported function, exported constant, exported field,
and doc-comment is byte-identical to pre-split. Package stays
`config`. Every external caller path is preserved.
Verification (all clean):
gofmt -l internal/config/ → clean
go build ./internal/config/... → clean
go test ./internal/config/... -count=1 → ok (0.70s)
staticcheck ./internal/config/... → clean
go build ./cmd/server/...
./internal/auth/...
./internal/api/router/...
./internal/api/handler/...
./internal/scheduler/... → clean
grep -nE '^type (AuthConfig|SessionConfig|BreakglassConfig|NamedAPIKey|AuthType)|^func (ValidAuthTypes|ParseNamedAPIKeys|isValidKeyName)' internal/config/config.go
→ empty (none remain in config.go)
grep -nE '^type (AuthConfig|SessionConfig|BreakglassConfig|NamedAPIKey|AuthType)|^func (ValidAuthTypes|ParseNamedAPIKeys|isValidKeyName)' internal/config/auth.go
→ 5 types + 3 funcs (correct)
LOC delta:
config.go: 2467 → 1963 (-504 lines: -358 struct block,
-144 helper block,
-2 from misc cleanup
collapse)
auth.go: new, 601 lines (incl. 101-line Phase 9 doc-comment +
BSL header + package decl + 4 imports)
Notable milestone: config.go is now BELOW 2000 LOC for the first
time since the original audit. From 3403 → 1963 = -42.3% across
Sprints 1+2+3+4+5.
Cumulative Phase 9 progress (Sprints 1+2+3+4+5 from config.go):
Pre-Phase-9: 3403 LOC
After Sprint 1 (Notifier): 3335 LOC (-68)
After Sprint 2 (ACME): 3108 LOC (-227)
After Sprint 3 (SCEP): 2774 LOC (-334)
After Sprint 4 (EST): 2467 LOC (-307)
After Sprint 5 (Auth): 1963 LOC (-504)
Total Sprint 1+2+3+4+5: -1440 LOC (-42.3%)
Pattern lesson — exported-helper move
=====================================
Pre-move check: enumerate every external caller via
`grep -rnE 'config\.<Symbol>'`. If the symbol's external callers
ARE all inside the same package, the move is trivial. If they're
external, the move is still safe IFF the package name doesn't
change — only the file the symbol lives IN changes. Same-package
resolution at compile time guarantees the import-path that
external code uses (`config.AuthType`, `config.ValidAuthTypes`)
keeps working. The broader-importer build is the load-bearing
verification: if it goes red, the move is wrong; green = safe.
Next queued (Sprint 6): Server family from config.go →
internal/config/server.go (~270 LOC). Includes ServerConfig +
ServerTLSConfig + DatabaseConfig + SchedulerConfig + LogConfig +
RateLimitConfig + CORSConfig + isLoopbackAddr (unexported
HIGH-12 demo-mode helper). No exported helpers — back to the
Sprint-3-style helper-bundle pattern, just bigger family.
Closes: cowork/certctl-architecture-diligence-audit.html#fix-ARCH-M2
(partial — 5 of 12 — full ARCH-M2 closure is the aggregate)