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lego/providers/dns/gandi/client.go
2019-03-11 17:56:48 +01:00

317 lines
6.8 KiB
Go

package gandi
import (
"bytes"
"encoding/xml"
"fmt"
"io"
"io/ioutil"
)
// types for XML-RPC method calls and parameters
type param interface {
param()
}
type paramString struct {
XMLName xml.Name `xml:"param"`
Value string `xml:"value>string"`
}
type paramInt struct {
XMLName xml.Name `xml:"param"`
Value int `xml:"value>int"`
}
type structMember interface {
structMember()
}
type structMemberString struct {
Name string `xml:"name"`
Value string `xml:"value>string"`
}
type structMemberInt struct {
Name string `xml:"name"`
Value int `xml:"value>int"`
}
type paramStruct struct {
XMLName xml.Name `xml:"param"`
StructMembers []structMember `xml:"value>struct>member"`
}
func (p paramString) param() {}
func (p paramInt) param() {}
func (m structMemberString) structMember() {}
func (m structMemberInt) structMember() {}
func (p paramStruct) param() {}
type methodCall struct {
XMLName xml.Name `xml:"methodCall"`
MethodName string `xml:"methodName"`
Params []param `xml:"params"`
}
// types for XML-RPC responses
type response interface {
faultCode() int
faultString() string
}
type responseFault struct {
FaultCode int `xml:"fault>value>struct>member>value>int"`
FaultString string `xml:"fault>value>struct>member>value>string"`
}
func (r responseFault) faultCode() int { return r.FaultCode }
func (r responseFault) faultString() string { return r.FaultString }
type responseStruct struct {
responseFault
StructMembers []struct {
Name string `xml:"name"`
ValueInt int `xml:"value>int"`
} `xml:"params>param>value>struct>member"`
}
type responseInt struct {
responseFault
Value int `xml:"params>param>value>int"`
}
type responseBool struct {
responseFault
Value bool `xml:"params>param>value>boolean"`
}
type rpcError struct {
faultCode int
faultString string
}
func (e rpcError) Error() string {
return fmt.Sprintf("Gandi DNS: RPC Error: (%d) %s", e.faultCode, e.faultString)
}
// rpcCall makes an XML-RPC call to Gandi's RPC endpoint by
// marshaling the data given in the call argument to XML and sending
// that via HTTP Post to Gandi.
// The response is then unmarshalled into the resp argument.
func (d *DNSProvider) rpcCall(call *methodCall, resp response) error {
// marshal
b, err := xml.MarshalIndent(call, "", " ")
if err != nil {
return fmt.Errorf("marshal error: %v", err)
}
// post
b = append([]byte(`<?xml version="1.0"?>`+"\n"), b...)
respBody, err := d.httpPost(d.config.BaseURL, "text/xml", bytes.NewReader(b))
if err != nil {
return err
}
// unmarshal
err = xml.Unmarshal(respBody, resp)
if err != nil {
return fmt.Errorf("unmarshal error: %v", err)
}
if resp.faultCode() != 0 {
return rpcError{
faultCode: resp.faultCode(), faultString: resp.faultString()}
}
return nil
}
// functions to perform API actions
func (d *DNSProvider) getZoneID(domain string) (int, error) {
resp := &responseStruct{}
err := d.rpcCall(&methodCall{
MethodName: "domain.info",
Params: []param{
paramString{Value: d.config.APIKey},
paramString{Value: domain},
},
}, resp)
if err != nil {
return 0, err
}
var zoneID int
for _, member := range resp.StructMembers {
if member.Name == "zone_id" {
zoneID = member.ValueInt
}
}
if zoneID == 0 {
return 0, fmt.Errorf("could not determine zone_id for %s", domain)
}
return zoneID, nil
}
func (d *DNSProvider) cloneZone(zoneID int, name string) (int, error) {
resp := &responseStruct{}
err := d.rpcCall(&methodCall{
MethodName: "domain.zone.clone",
Params: []param{
paramString{Value: d.config.APIKey},
paramInt{Value: zoneID},
paramInt{Value: 0},
paramStruct{
StructMembers: []structMember{
structMemberString{
Name: "name",
Value: name,
}},
},
},
}, resp)
if err != nil {
return 0, err
}
var newZoneID int
for _, member := range resp.StructMembers {
if member.Name == "id" {
newZoneID = member.ValueInt
}
}
if newZoneID == 0 {
return 0, fmt.Errorf("could not determine cloned zone_id")
}
return newZoneID, nil
}
func (d *DNSProvider) newZoneVersion(zoneID int) (int, error) {
resp := &responseInt{}
err := d.rpcCall(&methodCall{
MethodName: "domain.zone.version.new",
Params: []param{
paramString{Value: d.config.APIKey},
paramInt{Value: zoneID},
},
}, resp)
if err != nil {
return 0, err
}
if resp.Value == 0 {
return 0, fmt.Errorf("could not create new zone version")
}
return resp.Value, nil
}
func (d *DNSProvider) addTXTRecord(zoneID int, version int, name string, value string, ttl int) error {
resp := &responseStruct{}
err := d.rpcCall(&methodCall{
MethodName: "domain.zone.record.add",
Params: []param{
paramString{Value: d.config.APIKey},
paramInt{Value: zoneID},
paramInt{Value: version},
paramStruct{
StructMembers: []structMember{
structMemberString{
Name: "type",
Value: "TXT",
}, structMemberString{
Name: "name",
Value: name,
}, structMemberString{
Name: "value",
Value: value,
}, structMemberInt{
Name: "ttl",
Value: ttl,
}},
},
},
}, resp)
return err
}
func (d *DNSProvider) setZoneVersion(zoneID int, version int) error {
resp := &responseBool{}
err := d.rpcCall(&methodCall{
MethodName: "domain.zone.version.set",
Params: []param{
paramString{Value: d.config.APIKey},
paramInt{Value: zoneID},
paramInt{Value: version},
},
}, resp)
if err != nil {
return err
}
if !resp.Value {
return fmt.Errorf("could not set zone version")
}
return nil
}
func (d *DNSProvider) setZone(domain string, zoneID int) error {
resp := &responseStruct{}
err := d.rpcCall(&methodCall{
MethodName: "domain.zone.set",
Params: []param{
paramString{Value: d.config.APIKey},
paramString{Value: domain},
paramInt{Value: zoneID},
},
}, resp)
if err != nil {
return err
}
var respZoneID int
for _, member := range resp.StructMembers {
if member.Name == "zone_id" {
respZoneID = member.ValueInt
}
}
if respZoneID != zoneID {
return fmt.Errorf("could not set new zone_id for %s", domain)
}
return nil
}
func (d *DNSProvider) deleteZone(zoneID int) error {
resp := &responseBool{}
err := d.rpcCall(&methodCall{
MethodName: "domain.zone.delete",
Params: []param{
paramString{Value: d.config.APIKey},
paramInt{Value: zoneID},
},
}, resp)
if err != nil {
return err
}
if !resp.Value {
return fmt.Errorf("could not delete zone_id")
}
return nil
}
func (d *DNSProvider) httpPost(url string, bodyType string, body io.Reader) ([]byte, error) {
resp, err := d.config.HTTPClient.Post(url, bodyType, body)
if err != nil {
return nil, fmt.Errorf("HTTP Post Error: %v", err)
}
defer resp.Body.Close()
b, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, fmt.Errorf("HTTP Post Error: %v", err)
}
return b, nil
}