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shankar0123
30765ba1ed
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.
51 lines
2.5 KiB
Go
51 lines
2.5 KiB
Go
package domain
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import "time"
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// CRLCacheEntry is one row in the crl_cache table — a CRL that the
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// scheduler has pre-generated for a specific issuer. The HTTP handler
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// at /.well-known/pki/crl/{issuer_id} reads from this cache rather
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// than triggering a fresh generation per request.
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//
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// Schema lives in migrations/000019_crl_cache.up.sql.
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type CRLCacheEntry struct {
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IssuerID string `json:"issuer_id"`
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CRLDER []byte `json:"-"` // raw DER, omitted from JSON to avoid bloating admin responses
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CRLDERBase64 string `json:"crl_der_base64,omitempty"` // populated by repository.Get when callers want the bytes JSON-shaped
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CRLNumber int64 `json:"crl_number"` // monotonic per RFC 5280 §5.2.3
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ThisUpdate time.Time `json:"this_update"`
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NextUpdate time.Time `json:"next_update"`
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GeneratedAt time.Time `json:"generated_at"`
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GenerationDuration time.Duration `json:"generation_duration"`
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RevokedCount int `json:"revoked_count"`
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}
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// IsStale returns true when next_update is in the past — the cached CRL
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// is no longer trustworthy according to its own thisUpdate/nextUpdate
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// promise. The cache service uses this to decide whether to serve from
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// cache or trigger an immediate regeneration.
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//
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// A small grace window (configurable upstream; defaults to 5 minutes)
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// lets the scheduler refresh proactively before the cache hits hard
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// staleness. Callers that want the strict definition pass time.Time{}
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// or now (no grace).
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func (e *CRLCacheEntry) IsStale(now time.Time) bool {
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return !now.Before(e.NextUpdate)
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}
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// CRLGenerationEvent records one (re)generation attempt for ops visibility.
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// Persisted to crl_generation_events. Both successful and failed
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// generations get an event so operators can grep for "why is this issuer's
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// CRL not refreshing." On failure, the Error field carries the wrapped
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// error string from the issuer connector.
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type CRLGenerationEvent struct {
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ID int64 `json:"id,omitempty"` // bigserial, set by DB
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IssuerID string `json:"issuer_id"`
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CRLNumber int64 `json:"crl_number"` // 0 if generation failed before assigning a number
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Duration time.Duration `json:"duration"`
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RevokedCount int `json:"revoked_count"`
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StartedAt time.Time `json:"started_at"`
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Succeeded bool `json:"succeeded"`
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Error string `json:"error,omitempty"`
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}
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