| 31 | } |
| 32 | |
| 33 | func NewDialWithDNS(dns, prefer string) (*DialWithDNS, error) { |
| 34 | if prefer != "A" && prefer != "AAAA" { |
| 35 | return nil, errors.New("Invalid prefer") |
| 36 | } |
| 37 | if !strings.HasPrefix(dns, "https://") { |
| 38 | return &DialWithDNS{DNSClient: &brook.DNSClient{Server: dns}, Prefer: prefer}, nil |
| 39 | } |
| 40 | dc, err := brook.NewDOHClient(dns) |
| 41 | if err != nil { |
| 42 | return nil, err |
| 43 | } |
| 44 | return &DialWithDNS{DOHClient: dc, Prefer: prefer}, nil |
| 45 | } |
| 46 | |
| 47 | func (p *DialWithDNS) IP(domain string) (net.IP, error) { |
| 48 | if p.Prefer == "A" { |