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v0.2.1 Latest Latest Go to latest Published: Jan 2, 2024 License: MIT Imports: 7 Imported by: 0

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const CacheTTL = 12 * time.Hour

CacheTTL is the duration before a domain name resolution is evict form the cache.

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var ErrHostNotAllowed = errors.New("host not allowed")

ErrHostNotAllowed is returned when a host is not allowed.

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var ErrHostRejected = errors.New("rejected host")

ErrHostRejected is returned when the host has been flagged as unwanted.

This section is empty.

type Approver struct {
	// contains filtered or unexported fields
}

An Approver is able to check if an host is allowed or not.

func NewAppover(stricts []string, cidrs []string) (*Approver, error)

NewAppover returns a new Approver where `stricts' is a slice od allowed hosts and cidrs a slice of allowed IP ranges.

func (f *Approver) Allowed(ctx context.Context, host string) error

Allowed checks if the host `host:port' is allowed or not. Use `errors.Is(err, ErrHostNotAllowed)' to check the error's nature.

type NameResolver struct {
	// contains filtered or unexported fields
}

A NameResolver is used to filter IPs using name resolution.

func NewNameResolver(allows []string) (*NameResolver, error)

NewNameResolver return a new NameResolver.

func (r *NameResolver) Resolve(ctx context.Context, name string) (context.Context, net.IP, error)

Resolve returns the ip for the given domain name.