blacklist

type BlackLister interface {
	FilterRequest(request *dns.Msg) (blocked bool)
	FilterResponse(response *dns.Msg) (blocked bool)
}

type Builder interface {
	All(ctx context.Context, settings BuilderSettings) (
		blockedHostnames []string, blockedIPs []netaddr.IP,
		blockedIPPrefixes []netaddr.IPPrefix, errs []error)
	Hostnames(ctx context.Context,
		blockMalicious, blockAds, blockSurveillance bool,
		additionalBlockedHostnames, allowedHostnames []string) (
		blockedHostnames []string, errs []error)
	IPs(ctx context.Context,
		blockMalicious, blockAds, blockSurveillance bool,
		additionalBlockedIPs []netaddr.IP, additionalBlockedIPPrefixes []netaddr.IPPrefix) (
		blockedIPs []netaddr.IP, blockedIPPrefixes []netaddr.IPPrefix, errs []error)
}

type BuilderSettings struct {
	BlockMalicious       bool
	BlockAds             bool
	BlockSurveillance    bool
	AllowedHosts         []string
	AddBlockedHosts      []string
	AddBlockedIPs        []netaddr.IP
	AddBlockedIPPrefixes []netaddr.IPPrefix
}

type Settings struct {
	FqdnHostnames []string
	IPs           []netaddr.IP
	IPPrefixes    []netaddr.IPPrefix
}