Method rotationNeeded

modules/caddytls/ech.go:285–296

rotationNeeded returns true if any ECH key needs to be replaced, or deleted. It must be called inside a read or write lock of ech.configsMu (probably a write lock, so that the rotation can occur correctly in the same lock).)

(rotationInterval, deleteAfter time.Duration)

// It must be called inside a read or write lock of ech.configsMu (probably a
// write lock, so that the rotation can occur correctly in the same lock).)
func (ech *ECH) rotationNeeded(rotationInterval, deleteAfter time.Duration) bool {
	for publicName := range ech.configs {
		for i := 0; i < len(ech.configs[publicName]); i++ {
			cfg := ech.configs[publicName][i]
			if (time.Since(cfg.meta.Created) >= rotationInterval && cfg.meta.Replaced.IsZero()) ||
				(time.Since(cfg.meta.Created) >= deleteAfter && !cfg.meta.Replaced.IsZero()) {
				return true
			}
		}
	}
	return false
}

// updateKeyList updates the list of ECH keys the std lib uses to serve ECH.
// It must be called inside a write lock on ech.configsMu.