1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
package main
import (
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
)
// dnsLookupDoH performs a DNS lookup for AAAA records over HTTPS.
func dnsLookupDoH(domain string) ([]string, error) {
var ipv6Addresses []string
// Construct the URL for a DNS query with Google's DNS-over-HTTPS API
url := fmt.Sprintf("https://dns.google/resolve?name=%s&type=AAAA", domain)
// Perform the HTTP GET request
resp, err := http.Get(url)
if err != nil {
return nil, fmt.Errorf("error performing DNS-over-HTTPS request: %w", err)
}
defer resp.Body.Close()
// Read and unmarshal the response body
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, fmt.Errorf("error reading response: %w", err)
}
var data struct {
Answer []struct {
Data string `json:"data"`
} `json:"Answer"`
}
if err := json.Unmarshal(body, &data); err != nil {
return nil, fmt.Errorf("error unmarshaling response: %w", err)
}
// Extract the IPv6 addresses
for _, answer := range data.Answer {
ipv6Addresses = append(ipv6Addresses, answer.Data)
}
return ipv6Addresses, nil
}
/*
func main() {
domain := "google.com"
ipv6Addresses, err := dnsLookupDoH(domain)
if err != nil {
fmt.Println("Error:", err)
return
}
fmt.Printf("IPv6 Addresses for %s:\n", domain)
for _, addr := range ipv6Addresses {
fmt.Println(addr)
}
}
*/
|
