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Merge pull request #23 from starkSV/fix/lockdown-cache-status

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fix(backend): don't mislabel fresh lockdown-gate cache hits as stale
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Shekhar 2026-07-08 19:48:19 +05:30 • committed by GitHub
commit 48a6cb5eb4
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1 changed files with 14 additions and 4 deletions
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18
backend/main.go
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@ -1199,10 +1199,20 @@ func handleProxy(w http.ResponseWriter, r *http.Request) {
staleEntry, hasStale := linkCache[cacheKey]
linkCacheMu.RUnlock()
if hasStale {
atomic.AddInt64(&mLinkStale, 1)
log.Printf("/proxy: product_id=%s sku_id=%s -> lockdown active, serving stale (expires %s)\n",
productID, skuID, lockdownEntry.ExpiresAt.Format(time.RFC3339))
w.Header().Set("X-MSDL-Link-Status", "stale")
if time.Now().Before(staleEntry.ExpiresAt) {
// Entry is still within its normal TTL (e.g. just contributed by
// a CLI run) — genuinely fresh, not actually stale, just being
// served via the lockdown gate before the usual cache check.
atomic.AddInt64(&mLinkCacheHits, 1)
log.Printf("/proxy: product_id=%s sku_id=%s -> lockdown active, serving cached (expires %s)\n",
productID, skuID, staleEntry.ExpiresAt.Format(time.RFC3339))
w.Header().Set("X-MSDL-Link-Status", "cached")
} else {
atomic.AddInt64(&mLinkStale, 1)
log.Printf("/proxy: product_id=%s sku_id=%s -> lockdown active, serving stale (expires %s)\n",
productID, skuID, lockdownEntry.ExpiresAt.Format(time.RFC3339))
w.Header().Set("X-MSDL-Link-Status", "stale")
}
if exp := extractRawExpiry(staleEntry.RawJSON); exp != "" {
w.Header().Set("X-MSDL-Link-Expires", exp)
}