DenozordecandCursor
a8c5e9701f
- Убран latestCDNRowsBySource; expanded BIRD preview генерируется on-demand - Batch AS meta updates; миграция perf-индексов 000012 - VirtualPrefixList для preview префиксов; метрики pipeline refresh - PolitePause для RIPEstat после cache miss Co-authored-by: Cursor <cursoragent@cursor.com>
60 lines
1.5 KiB
Go
60 lines
1.5 KiB
Go
package pipeline
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import (
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"context"
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"fmt"
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"net/http"
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"net/netip"
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"os"
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"strconv"
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"strings"
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"time"
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"evobgp/internal/asnresolve"
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"evobgp/internal/store"
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)
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func asnCacheTTL() time.Duration {
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sec := 1800
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if s := strings.TrimSpace(os.Getenv("EVOBGP_ASN_CACHE_TTL_SEC")); s != "" {
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if v, err := strconv.Atoi(s); err == nil && v > 0 {
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sec = v
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}
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}
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return time.Duration(sec) * time.Second
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}
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// resolveASNForEntry fetches prefixes and holder with shared TTL cache (asn_prefix_cache).
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func resolveASNForEntry(ctx context.Context, st store.Backend, hc *http.Client, asn int64) ([]netip.Prefix, string, error) {
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ttl := asnCacheTTL()
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if st != nil {
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if ent, ok, err := st.GetASNPrefixCache(asn); err == nil && ok && ent != nil && time.Since(ent.FetchedAt) < ttl {
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out := make([]netip.Prefix, 0, len(ent.Prefixes))
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for _, p := range ent.Prefixes {
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pfx, perr := netip.ParsePrefix(strings.TrimSpace(p))
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if perr != nil {
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continue
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}
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out = append(out, pfx.Masked())
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}
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return out, ent.Holder, nil
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}
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}
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pfxs, err := asnresolve.AnnouncedPrefixes(ctx, hc, asn)
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if err != nil {
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return nil, "", err
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}
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asnresolve.PolitePause()
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holder, _ := asnresolve.ASHolderName(ctx, hc, asn)
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if st != nil {
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strs := make([]string, len(pfxs))
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for i, p := range pfxs {
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strs[i] = p.String()
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}
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if err := st.SetASNPrefixCache(asn, holder, strs); err != nil {
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return nil, "", fmt.Errorf("asn cache AS%d: %w", asn, err)
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}
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}
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return pfxs, holder, nil
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}
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