1 files changed, 62 insertions, 0 deletions
diff --git a/dns-https.go b/dns-https.go
new file mode 100644
index 0000000..00eec82
--- /dev/null
+++ b/dns-https.go
@@ -0,0 +1,62 @@
+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)
+	}
+}
+*/