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shankar0123
fefa5a5fd7
Closes the #7 acquisition-readiness blocker from the 2026-05-01 issuer coverage audit. Pre-fix, ACME RevokeCertificate at acme.go:L519-L529 returned the literal error "ACME revocation by serial not supported in V1; provide certificate DER". RFC 8555 §7.6 genuinely requires the cert DER bytes (not just the serial), but a CLM platform's job is to abstract over that limitation. Operators routinely have only the serial in hand: lost PEM, rotated key, GUI revoke action driven by a row in the certs list. This commit: - Adds CertificateLookupRepo interface at the ACME connector boundary (connector boundary, NOT a service/repository import — the connector accepts whatever satisfies the shape). Production wiring in cmd/server/main.go injects the postgres CertificateRepository; tests inject a fake. - Adds CertificateRepository.GetVersionBySerial(ctx, issuerID, serial) + interface declaration in repository/interfaces.go, returning the certificate_versions row whose SerialNumber matches, scoped to the issuer via JOIN on managed_certificates. Mirrors the existing GetByIssuerAndSerial shape but returns the version (where PEMChain lives). Per RFC 5280 §5.2.3 the issuer scope is required for determinism. - Adds SetCertificateLookup + SetIssuerID setters on *acme.Connector. Mirror the pattern local.Connector already uses for OCSP responder wiring. Both must be wired before serial-only revoke works; unwired state falls back to a more actionable error pointing at the wiring requirement (the historical "not supported" wording is retired). - Rewrites RevokeCertificate end-to-end: lookup → empty-PEM check → pem.Decode → block.Type == "CERTIFICATE" check → ensureClient → golang.org/x/crypto/acme.Client.RevokeCert(ctx, accountKey, der, reasonCode). RFC 8555 §7.6 case 1 (revocation request signed with account key) — the same account key issued the cert, so authority is intrinsic. The not-found path returns an actionable operator- facing error pointing at the local-store requirement. - Adds mapRevocationReason translating RFC 5280 §5.3.1 reason strings (unspecified, keyCompromise, cACompromise, affiliationChanged, superseded, cessationOfOperation, certificateHold, removeFromCRL, privilegeWithdrawn, aACompromise) into golang.org/x/crypto/acme. CRLReasonCode. Accepts canonical camelCase + underscore_lower + ALL_CAPS_UNDERSCORE. Nil reason → 0 (unspecified). Unknown reason errors rather than silently demoting (operators rely on the reason for compliance reporting). - Wiring update in service/issuer_registry.go: SetACMECertLookup setter on the registry; Rebuild type-asserts *acme.Connector and calls SetCertificateLookup + SetIssuerID, mirroring the existing *local.Connector branch. cmd/server/main.go calls issuerRegistry.SetACMECertLookup(certificateRepo) immediately after SetIssuanceMetrics — the postgres repo satisfies the interface via GetVersionBySerial. - Tests: * acme_revoke_test.go (new): TestRevokeCertificate_NoCertLookupWired, TestRevokeCertificate_NoIssuerIDWired, TestRevokeCertificate_LookupReturnsNotFound (operator-facing "may not have been issued through certctl" hint pinned), TestRevokeCertificate_LookupArbitraryError, TestRevokeCertificate_VersionPEMEmpty (corrupt-row guard), TestRevokeCertificate_PEMMalformed_NoBlock, TestRevokeCertificate_PEMMalformed_WrongType (PRIVATE KEY block rejected as not a CERTIFICATE). * TestMapRevocationReason_TableDriven: full RFC 5280 reason set plus camelCase / underscore / ALL-CAPS variants plus nil-reason and unknown-reason cases. * acme_failure_test.go: renamed TestRevokeCertificate_AlwaysError → TestRevokeCertificate_UnwiredCertLookupFallback; the test still exercises the same backward-compat branch but now asserts the new "CertificateLookup wiring" error wording. - Mock-repo updates (3 sites): mockCertificateRepository in internal/integration/lifecycle_test.go, mockCertRepo in internal/service/testutil_test.go, mockCertRepoWithGetError in internal/service/shortlived_test.go each gain a GetVersionBySerial implementation that mirrors the GetByIssuerAndSerial logic but returns the version row. - docs/connectors.md ACME section: new "Revocation by serial number" subsection covering the workflow, the local-store requirement (cert was issued through certctl, not imported), the reason-code mapping with the three accepted spelling variants, and a pointer to the audit reference. Out of scope (intentional, per spec): - Recovering the DER from outside the local cert store (CT logs, CSR + signature reconstruction). If the cert wasn't issued through certctl, revoke-by-serial via certctl isn't possible. - Revocation via the cert's private key (RFC 8555 §7.6 case 2). The account-key path covers all certctl-issued certs because the same account key issued them. - Pebble-backed integration test for the happy path. Pebble integration is the right home for that — the unit tests in this commit pin all failure-mode branches before the network call, and the wiring branch in Rebuild is exercised by the existing TestIssuerRegistryRebuild paths. Verified locally: - gofmt -l . clean - go vet ./... clean - staticcheck ./... clean - go test -short -count=1 across connector, service, repository, integration, api/middleware, api/handler: green Audit reference: cowork/issuer-coverage-audit-2026-05-01/RESULTS.md Top-10 fix #7.