socks5

type AddrSpec struct {
	FQDN string
	IP   net.IP
	Port int
}

type AddressRewriter interface {
	Rewrite(ctx context.Context, request *Request) (context.Context, *AddrSpec)
}

type AuthContext struct {
	Method  uint8
	Payload map[string]string
}

type Authenticator interface {
	Authenticate(reader io.Reader, writer io.Writer) (*AuthContext, error)
	GetCode() uint8
}

type Config struct {
	AuthMethods []Authenticator
	Credentials CredentialStore
	Resolver    NameResolver
	Rules       RuleSet
	Rewriter    AddressRewriter
	BindIP      net.IP
	Dial        func(ctx context.Context, network, addr string) (net.Conn, error)
}

type CredentialStore interface {
	Valid(user, password string) bool
}

type DNSResolver struct{}

type NameResolver interface {
	Resolve(ctx context.Context, name string) (context.Context, net.IP, error)
}

type NoAuthAuthenticator struct{}

type PermitCommand struct {
	EnableConnect   bool
	EnableBind      bool
	EnableAssociate bool
}

type Request struct {
	Version     uint8
	Command     uint8
	AuthContext *AuthContext
	RemoteAddr  *AddrSpec
	DestAddr    *AddrSpec
	// contains filtered or unexported fields
}

type RuleSet interface {
	Allow(ctx context.Context, req *Request) (context.Context, bool)
}

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

type StaticCredentials map[string]string

type UserPassAuthenticator struct {
	Credentials CredentialStore
}