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lego/providers/dns/autodns/client.go
2020-05-08 19:35:25 +02:00

165 lines
3.9 KiB
Go

package autodns
import (
"bytes"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"net/http"
"path"
"strconv"
)
const (
defaultEndpoint = "https://api.autodns.com/v1/"
)
type ResponseMessage struct {
Text string `json:"text"`
Messages []string `json:"messages"`
Objects []string `json:"objects"`
Code string `json:"code"`
Status string `json:"status"`
}
type ResponseStatus struct {
Code string `json:"code"`
Text string `json:"text"`
Type string `json:"type"`
}
type ResponseObject struct {
Type string `json:"type"`
Value string `json:"value"`
Summary int32 `json:"summary"`
Data string
}
type DataZoneResponse struct {
STID string `json:"stid"`
CTID string `json:"ctid"`
Messages []*ResponseMessage `json:"messages"`
Status *ResponseStatus `json:"status"`
Object interface{} `json:"object"`
Data []*Zone `json:"data"`
}
// ResourceRecord holds a resource record.
type ResourceRecord struct {
Name string `json:"name"`
TTL int64 `json:"ttl"`
Type string `json:"type"`
Value string `json:"value"`
Pref int32 `json:"pref,omitempty"`
}
// Zone is an autodns zone record with all for us relevant fields.
type Zone struct {
Name string `json:"origin"`
ResourceRecords []*ResourceRecord `json:"resourceRecords"`
Action string `json:"action"`
VirtualNameServer string `json:"virtualNameServer"`
}
type ZoneStream struct {
Adds []*ResourceRecord `json:"adds"`
Removes []*ResourceRecord `json:"rems"`
}
func (d *DNSProvider) addTxtRecord(domain string, records []*ResourceRecord) (*Zone, error) {
zoneStream := &ZoneStream{Adds: records}
return d.makeZoneUpdateRequest(zoneStream, domain)
}
func (d *DNSProvider) removeTXTRecord(domain string, records []*ResourceRecord) error {
zoneStream := &ZoneStream{Removes: records}
_, err := d.makeZoneUpdateRequest(zoneStream, domain)
return err
}
func (d *DNSProvider) makeZoneUpdateRequest(zoneStream *ZoneStream, domain string) (*Zone, error) {
reqBody := &bytes.Buffer{}
if err := json.NewEncoder(reqBody).Encode(zoneStream); err != nil {
return nil, err
}
req, err := d.makeRequest(http.MethodPost, path.Join("zone", domain, "_stream"), reqBody)
if err != nil {
return nil, err
}
var resp *Zone
if err := d.sendRequest(req, &resp); err != nil {
return nil, err
}
return resp, nil
}
func (d *DNSProvider) makeRequest(method, resource string, body io.Reader) (*http.Request, error) {
uri, err := d.config.Endpoint.Parse(resource)
if err != nil {
return nil, err
}
req, err := http.NewRequest(method, uri.String(), body)
if err != nil {
return nil, err
}
req.Header.Set("Content-Type", "application/json")
req.Header.Set("X-Domainrobot-Context", strconv.Itoa(d.config.Context))
req.SetBasicAuth(d.config.Username, d.config.Password)
return req, nil
}
func (d *DNSProvider) sendRequest(req *http.Request, result interface{}) error {
resp, err := d.config.HTTPClient.Do(req)
if err != nil {
return err
}
if err = checkResponse(resp); err != nil {
return err
}
defer func() { _ = resp.Body.Close() }()
if result == nil {
return nil
}
raw, err := ioutil.ReadAll(resp.Body)
if err != nil {
return err
}
err = json.Unmarshal(raw, result)
if err != nil {
return fmt.Errorf("unmarshaling %T error [status code=%d]: %w: %s", result, resp.StatusCode, err, string(raw))
}
return err
}
func checkResponse(resp *http.Response) error {
if resp.StatusCode < http.StatusBadRequest {
return nil
}
if resp.Body == nil {
return fmt.Errorf("response body is nil, status code=%d", resp.StatusCode)
}
defer func() { _ = resp.Body.Close() }()
raw, err := ioutil.ReadAll(resp.Body)
if err != nil {
return fmt.Errorf("unable to read body: status code=%d, error=%w", resp.StatusCode, err)
}
return fmt.Errorf("status code=%d: %s", resp.StatusCode, string(raw))
}