Njalla

main.go

@@ -1,5 +1,22 @@
 package main
 
+import (
+	"log"
+
+	"nulo.in/ddnser/nameservers"
+)
+
 func main() {
+	njalla := nameservers.Njalla{Key: "yourkey"}
+	record, err := njalla.SetRecord("estoesprueba.nulo.in", "")
+	if err != nil {
+		log.Fatal(err)
+	}
+	log.Println(record)
+	record, err = njalla.SetRecord("estoesprueba.nulo.in", "1.1.1.1")
+	if err != nil {
+		log.Fatal(err)
+	}
+	log.Println(record)
 
 }

nameservers/nameserver.go

@@ -0,0 +1,5 @@
+package nameservers
+
+type NameServer interface {
+	SetRecord(domain string, overrideIp string) (string, error)
+}

nameservers/njalla.go

@@ -0,0 +1,64 @@
+package nameservers
+
+import (
+	"encoding/json"
+	"errors"
+	"io"
+	"log"
+	"net/http"
+	"net/url"
+	"strconv"
+)
+
+type Njalla struct {
+	httpClient http.Client
+	Key        string
+}
+
+type njallaValue struct {
+	A string `json:"A"`
+}
+
+type njallaResponse struct {
+	Status  int         `json:"status"`
+	Message string      `json:"message"`
+	Value   njallaValue `json:"value"`
+}
+
+func (n *Njalla) SetRecord(domain string, overrideIp string) (string, error) {
+	u, _ := url.Parse("https://njal.la/update/")
+	values := url.Values{
+		"h": {domain},
+		"k": {n.Key},
+	}
+	if len(overrideIp) > 0 {
+
+		values["a"] = []string{overrideIp}
+	} else {
+		values["auto"] = []string{""}
+	}
+	u.RawQuery = values.Encode()
+
+	resp, err := n.httpClient.Get(u.String())
+	if err != nil {
+		return "", err
+	}
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return "", err
+	}
+	decoded := njallaResponse{}
+	err = json.Unmarshal(body, &decoded)
+	if err != nil {
+		return "", err
+	}
+	log.Println(string(body))
+
+	if resp.StatusCode < 200 || resp.StatusCode > 299 {
+		return "", errors.New("Not nice status code: " + strconv.Itoa(resp.StatusCode) + " with body: " + string(body))
+	}
+	if decoded.Status < 200 || decoded.Status > 299 {
+		return "", errors.New("Not nice JSON status: " + strconv.Itoa(decoded.Status) + " with body: " + string(body))
+	}
+	return decoded.Value.A, nil
+}