M-004 — OCSP issuer binding (composite key):
The OCSP lookup path now binds (issuer_id, serial) as a composite key
rather than resolving by serial alone. CertificateRepository and
RevocationRepository gain GetByIssuerAndSerial methods; ca_operations.go
scopes both lookups by the issuer_id path param. When no managed cert
binds to that (issuer, serial) tuple, GetOCSPResponse constructs an
RFC 6960 §2.2 'unknown' response (CertStatus=2) instead of the prior
default 'good'. Short-lived cert exemption (profile TTL < 1h) is
preserved. Real repo errors (non-sql.ErrNoRows) fail closed with a log.
Regression coverage: internal/service/ca_operations_test.go
- TestCAOperationsSvc_GetOCSPResponse_Unknown_CrossIssuer
- TestCAOperationsSvc_GetOCSPResponse_Unknown_UnknownSerial
M-005 — Discovery Claim/Dismiss actor propagation:
DiscoveryService.ClaimDiscovered and DismissDiscovered now accept an
explicit 'actor string' parameter (propagation pattern mirrors
bulk_revocation.go / revocation_svc.go). The handler layer passes
resolveActor(r.Context()) — the named-key identity established by the
M-002 auth unification — and the service falls back to 'api' (the same
safe sentinel resolveActor uses when no auth context is present) only
when the caller passes an empty string. Never falls back to 'operator'.
Regression coverage: internal/service/discovery_test.go
- TestDiscoveryService_ClaimDiscovered_AuditActor
- TestDiscoveryService_DismissDiscovered_AuditActor
- TestDiscoveryService_ClaimDiscovered_EmptyActorFallsBackToAPI
- TestDiscoveryService_DismissDiscovered_EmptyActorFallsBackToAPI
Each new test asserts event.Actor matches the caller-supplied string (or
'api' on empty input) and explicitly asserts event.Actor != 'operator'
to lock in the historical fix intent.
Files:
internal/api/handler/discovery.go — pass resolveActor(ctx)
internal/api/handler/discovery_handler_test.go — updated call sites
internal/integration/lifecycle_test.go — updated mock wiring
internal/repository/interfaces.go — GetByIssuerAndSerial on
CertificateRepository +
RevocationRepository
internal/repository/postgres/certificate.go — composite key lookup
internal/service/ca_operations.go — (issuer_id, serial) scoping
internal/service/ca_operations_test.go — 2 new M-004 tests
internal/service/discovery.go — actor parameter + 'api' fallback
internal/service/discovery_test.go — 4 new M-005 tests
internal/service/shortlived_test.go — mock signature update
internal/service/testutil_test.go — mock GetByIssuerAndSerial
Root cause: certificate_versions.csr_pem is nullable in the schema but
Go code scanned it into a plain string. Used sql.NullString in
ListVersions and GetLatestVersion to handle NULL values correctly.
Also includes: partial update fetch-merge-update pattern to prevent FK
violations, nil directory guard in discovery service, diagnostic slog
logging in handlers, export handler 422 for unparseable PEM, OpenAPI
spec corrections, MCP tool description improvements, and test fixes.
Rewrites the Release Sign-Off section in testing-guide.md to individual
test-level granularity (320 rows) with smoke test results audited and
checked off (121 pass, 5 skip, 194 manual remaining).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
shankar0123