Files
certctl/internal/domain/crl_cache.go
T
Shankar dc448264bc crl/cache: schema + repository for crl_cache + crl_generation_events
Phase 1 of the CRL/OCSP responder bundle. Adds:

  * migration 000019 — crl_cache (one row per issuer; pre-generated CRL DER,
    monotonic crl_number per RFC 5280 §5.2.3, this_update/next_update,
    generation duration metric, revoked_count) + crl_generation_events
    (append-only audit log of every regeneration attempt, succeeded
    + error fields for ops grep)
  * internal/domain/crl_cache.go — CRLCacheEntry + IsStale helper +
    CRLGenerationEvent (raw DER omitted from JSON to avoid bloating
    admin responses; CRLDERBase64 field for explicit transit shaping)
  * internal/repository/interfaces.go — CRLCacheRepository interface
    (Get / Put / NextCRLNumber / RecordGenerationEvent /
    ListGenerationEvents)
  * internal/repository/postgres/crl_cache.go — Postgres impl with
    SERIALIZABLE-isolated NextCRLNumber to defeat the monotonicity
    race between concurrent generations of the same issuer
  * internal/repository/postgres/crl_cache_test.go — testcontainers
    suite (round-trip, overwrite, monotonicity, event recording,
    failure-event-with-error)

No behavior change at the HTTP layer yet — Phase 3 wires the cache into
GetDERCRL via a new CRLCacheService + crlGenerationLoop.
2026-04-28 23:45:18 +00:00

51 lines
2.5 KiB
Go

package domain
import "time"
// CRLCacheEntry is one row in the crl_cache table — a CRL that the
// scheduler has pre-generated for a specific issuer. The HTTP handler
// at /.well-known/pki/crl/{issuer_id} reads from this cache rather
// than triggering a fresh generation per request.
//
// Schema lives in migrations/000019_crl_cache.up.sql.
type CRLCacheEntry struct {
IssuerID string `json:"issuer_id"`
CRLDER []byte `json:"-"` // raw DER, omitted from JSON to avoid bloating admin responses
CRLDERBase64 string `json:"crl_der_base64,omitempty"` // populated by repository.Get when callers want the bytes JSON-shaped
CRLNumber int64 `json:"crl_number"` // monotonic per RFC 5280 §5.2.3
ThisUpdate time.Time `json:"this_update"`
NextUpdate time.Time `json:"next_update"`
GeneratedAt time.Time `json:"generated_at"`
GenerationDuration time.Duration `json:"generation_duration"`
RevokedCount int `json:"revoked_count"`
}
// IsStale returns true when next_update is in the past — the cached CRL
// is no longer trustworthy according to its own thisUpdate/nextUpdate
// promise. The cache service uses this to decide whether to serve from
// cache or trigger an immediate regeneration.
//
// A small grace window (configurable upstream; defaults to 5 minutes)
// lets the scheduler refresh proactively before the cache hits hard
// staleness. Callers that want the strict definition pass time.Time{}
// or now (no grace).
func (e *CRLCacheEntry) IsStale(now time.Time) bool {
return !now.Before(e.NextUpdate)
}
// CRLGenerationEvent records one (re)generation attempt for ops visibility.
// Persisted to crl_generation_events. Both successful and failed
// generations get an event so operators can grep for "why is this issuer's
// CRL not refreshing." On failure, the Error field carries the wrapped
// error string from the issuer connector.
type CRLGenerationEvent struct {
ID int64 `json:"id,omitempty"` // bigserial, set by DB
IssuerID string `json:"issuer_id"`
CRLNumber int64 `json:"crl_number"` // 0 if generation failed before assigning a number
Duration time.Duration `json:"duration"`
RevokedCount int `json:"revoked_count"`
StartedAt time.Time `json:"started_at"`
Succeeded bool `json:"succeeded"`
Error string `json:"error,omitempty"`
}