64 lines
1.2 KiB
Go
64 lines
1.2 KiB
Go
package api
|
|
|
|
import (
|
|
"encoding/json"
|
|
"errors"
|
|
"io"
|
|
"time"
|
|
|
|
"github.com/julienschmidt/httprouter"
|
|
"github.com/miekg/dns"
|
|
|
|
"git.happydns.org/happydns/config"
|
|
"git.happydns.org/happydns/model"
|
|
)
|
|
|
|
func init() {
|
|
router.POST("/api/resolver", apiAuthHandler(runResolver))
|
|
}
|
|
|
|
type resolverRequest struct {
|
|
Resolver string `json:"resolver"`
|
|
DomainName string `json:"domain"`
|
|
Type string `json:"type"`
|
|
}
|
|
|
|
func runResolver(_ *config.Options, u *happydns.User, _ httprouter.Params, body io.Reader) Response {
|
|
var urr resolverRequest
|
|
err := json.NewDecoder(body).Decode(&urr)
|
|
if err != nil {
|
|
return APIErrorResponse{
|
|
err: err,
|
|
}
|
|
}
|
|
|
|
client := dns.Client{Timeout: time.Second * 5}
|
|
|
|
m := new(dns.Msg)
|
|
m.SetQuestion(urr.DomainName, dns.StringToType[urr.Type])
|
|
m.RecursionDesired = true
|
|
m.SetEdns0(4096, true)
|
|
|
|
r, _, err := client.Exchange(m, urr.Resolver+":53")
|
|
if err != nil {
|
|
return APIErrorResponse{
|
|
err: err,
|
|
}
|
|
}
|
|
|
|
if r == nil {
|
|
return APIErrorResponse{
|
|
err: errors.New("response is nil"),
|
|
}
|
|
}
|
|
if r.Rcode != dns.RcodeSuccess {
|
|
return APIErrorResponse{
|
|
err: errors.New("failed to get a valid answer"),
|
|
}
|
|
}
|
|
|
|
return APIResponse{
|
|
response: r.String(),
|
|
}
|
|
}
|