laurent/dnsupdater
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golang 1.13

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use sling for gandi requests
This commit is contained in:
Laurent Le Houerou 2019-10-27 15:27:23 +04:00
parent 8272d2d934
commit 41af5fb5cd
3 changed files with 65 additions and 65 deletions
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5
go.mod
View File

@ -1,10 +1,13 @@
module gogs.lehouerou.net/Laurent/dnsupdater
go 1.12
go 1.13
require (
github.com/cheekybits/is v0.0.0-20150225183255-68e9c0620927 // indirect
github.com/dghubble/sling v1.3.0
github.com/matryer/try v0.0.0-20161228173917-9ac251b645a2
github.com/sirupsen/logrus v1.4.2
github.com/urfave/cli v1.20.0
gopkg.in/alexcesaro/quotedprintable.v3 v3.0.0-20150716171945-2caba252f4dc // indirect
gopkg.in/gomail.v2 v2.0.0-20160411212932-81ebce5c23df
)

6
go.sum
View File

@ -1,5 +1,11 @@
github.com/cheekybits/is v0.0.0-20150225183255-68e9c0620927 h1:SKI1/fuSdodxmNNyVBR8d7X/HuLnRpvvFO0AgyQk764=
github.com/cheekybits/is v0.0.0-20150225183255-68e9c0620927/go.mod h1:h/aW8ynjgkuj+NQRlZcDbAbM1ORAbXjXX77sX7T289U=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/dghubble/sling v1.3.0 h1:pZHjCJq4zJvc6qVQ5wN1jo5oNZlNE0+8T/h0XeXBUKU=
github.com/dghubble/sling v1.3.0/go.mod h1:XXShWaBWKzNLhu2OxikSNFrlsvowtz4kyRuXUG7oQKY=
github.com/google/go-querystring v1.0.0 h1:Xkwi/a1rcvNg1PPYe5vI8GbeBY/jrVuDX5ASuANWTrk=
github.com/google/go-querystring v1.0.0/go.mod h1:odCYkC5MyYFN7vkCjXpyrEuKhc/BUO6wN/zVPAxq5ck=
github.com/konsorten/go-windows-terminal-sequences v1.0.1 h1:mweAR1A6xJ3oS2pRaGiHgQ4OO8tzTaLawm8vnODuwDk=
github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
github.com/matryer/try v0.0.0-20161228173917-9ac251b645a2 h1:JAEbJn3j/FrhdWA9jW8B5ajsLIjeuEHLi8xE4fk997o=

119
main.go
View File

@ -1,19 +1,20 @@
package main
import (
"bytes"
"encoding/json"
"fmt"
"github.com/matryer/try"
log "github.com/sirupsen/logrus"
"github.com/urfave/cli"
"gopkg.in/gomail.v2"
"io/ioutil"
"net/http"
"os"
"path"
"regexp"
"time"
"github.com/dghubble/sling"
"github.com/matryer/try"
log "github.com/sirupsen/logrus"
"github.com/urfave/cli"
"gopkg.in/gomail.v2"
)
type Configuration struct {
@ -43,12 +44,14 @@ type DnsResponse struct {
}
var (
configuration *Configuration
configuration Configuration
configPath string
base *sling.Sling
)
const (
GandiARecordUrl = "https://dns.api.gandi.net/api/v5/domains/%s/records/@/A"
GandiApiUrl = "https://dns.api.gandi.net/api/v5/"
GandiARecordUrl = "domains/%s/records/@/A"
)
func main() {
@ -83,15 +86,21 @@ func before(c *cli.Context) error {
}
defer file.Close()
decoder := json.NewDecoder(file)
configuration = &Configuration{}
err = decoder.Decode(configuration)
configuration = Configuration{}
err = decoder.Decode(&configuration)
if err != nil {
return err
}
base = sling.New().Client(&http.Client{
Timeout: 30 * time.Second,
}).Base(GandiApiUrl).
Set("X-Api-Key", configuration.GandiKey)
return nil
}
func start(c *cli.Context) error {
func start(*cli.Context) error {
if err := update(); err != nil {
SendStatusMail(fmt.Sprintf("Error during update process : %s", err))
return err
@ -102,25 +111,25 @@ func start(c *cli.Context) error {
func update() error {
newIp, err := GetOutboundIP()
if err != nil {
return err
return fmt.Errorf("getting outbound ip: %v", err)
}
updatedDomains := ""
for _, domain := range configuration.Domains {
currentIp, err := GetCurrentIp(*configuration, domain)
currentIp, err := GetCurrentIp(domain)
if err != nil {
return err
return fmt.Errorf("getting current ip: %v", err)
}
if currentIp == newIp {
continue
}
log.Infoln(fmt.Sprintf("%s -> Ip has changed %s -> %s", domain, currentIp, newIp))
log.Infof(fmt.Sprintf("%s -> Ip has changed %s -> %s", domain, currentIp, newIp))
err = SetCurrentIp(newIp, domain, *configuration)
err = SetCurrentIp(newIp, domain)
if err != nil {
return err
return fmt.Errorf("setting current ip: %v", err)
}
updatedDomains += fmt.Sprintf("\t- %s\n", domain)
}
@ -138,14 +147,14 @@ func SendStatusMail(messageText string) {
settings := configuration.MailSettings
if settings == nil {
log.Warnln("no smtp settings defined > status mail not sent")
log.Warnf("no smtp settings defined > status mail not sent")
return
}
d := gomail.NewDialer(settings.SmtpHost, settings.SmtpPort, settings.SmtpLogin, settings.SmtpPassword)
s, err := d.Dial()
if err != nil {
log.Errorln(fmt.Sprintf("error while dialing smtp server : %v", err))
log.Errorf(fmt.Sprintf("error while dialing smtp server : %v", err))
return
}
@ -157,38 +166,31 @@ func SendStatusMail(messageText string) {
m.SetBody("text/plain", messageText)
if err := gomail.Send(s, m); err != nil {
log.Warnln(fmt.Sprintf("could not send email to %q: %v", r, err))
log.Warnf(fmt.Sprintf("could not send email to %q: %v", r, err))
}
m.Reset()
}
}
func GetCurrentIp(configuration Configuration, domain string) (string, error) {
func GetCurrentIp(domain string) (string, error) {
var value string
err := try.Do(func(attempt int) (bool, error) {
var err error
value, err = func(configuration Configuration, domain string) (string, error) {
url := fmt.Sprintf(GandiARecordUrl, domain)
req, err := http.NewRequest("GET", url, nil)
if err != nil {
return "", err
}
req.Header.Set("X-Api-Key", configuration.GandiKey)
client := &http.Client{}
resp, err := client.Do(req)
if err != nil {
return "", err
}
defer resp.Body.Close()
decoder := json.NewDecoder(resp.Body)
value, err = func(domain string) (string, error) {
dnsresponse := DnsResponse{}
err = decoder.Decode(&dnsresponse)
resp, err := base.New().Get(fmt.Sprintf(GandiARecordUrl, domain)).
ReceiveSuccess(&dnsresponse)
if err != nil {
return "", err
return "", fmt.Errorf("requesting gandi dns info: %v", err)
}
if resp.StatusCode < 200 || resp.StatusCode > 299 {
return "", fmt.Errorf("requesting gandi dns info, no 2xx http status code: %d", resp.StatusCode)
}
if len(dnsresponse.Values) == 0 {
return "", fmt.Errorf("no values in dnsresponse")
}
return dnsresponse.Values[0], nil
}(configuration, domain)
}(domain)
if err != nil {
log.Warnln(fmt.Sprintf("Error while getting current ip from gandi : %v", err))
time.Sleep(30 * time.Second)
@ -201,31 +203,21 @@ func GetCurrentIp(configuration Configuration, domain string) (string, error) {
return value, nil
}
func SetCurrentIp(newip string, domain string, configuration Configuration) error {
url := fmt.Sprintf(GandiARecordUrl, domain)
log.Infoln("URL:>", url)
var str = fmt.Sprintf("{\"rrset_ttl\": %d,\"rrset_values\": [\"%s\"]}", 600, newip)
log.Infoln("json:", str)
var jsonStr = []byte(str)
req, err := http.NewRequest("PUT", url, bytes.NewBuffer(jsonStr))
func SetCurrentIp(newip string, domain string) error {
resp, err := base.New().Put(fmt.Sprintf(GandiARecordUrl, domain)).
BodyJSON(struct {
TTL int `json:"rrset_ttl"`
Values []string `json:"rrset_values"`
}{
TTL: 600,
Values: []string{newip},
}).ReceiveSuccess(nil)
if err != nil {
return err
return fmt.Errorf("setting gandi dns info: %v", err)
}
req.Header.Set("X-Api-Key", configuration.GandiKey)
req.Header.Set("Content-Type", "application/json")
client := &http.Client{}
resp, err := client.Do(req)
if err != nil {
return err
if resp.StatusCode < 200 || resp.StatusCode > 299 {
return fmt.Errorf("setting gandi dns info, no 2xx http status code: %d", resp.StatusCode)
}
defer resp.Body.Close()
log.Debugln("response Status:", resp.Status)
log.Debugln("response Headers:", resp.Header)
body, _ := ioutil.ReadAll(resp.Body)
log.Debugln("response Body:", string(body))
return nil
}
@ -236,22 +228,21 @@ func GetOutboundIP() (string, error) {
}
req, err := http.NewRequest("GET", url, nil)
if err != nil {
return "", err
return "", fmt.Errorf("creating http request: %v", err)
}
if configuration.RouterLogin != "" && configuration.RouterPassword != "" {
req.SetBasicAuth(configuration.RouterLogin, configuration.RouterPassword)
}
res, err := http.DefaultClient.Do(req)
if err != nil {
return "", err
return "", fmt.Errorf("executing http request: %v", err)
}
defer res.Body.Close()
body, err := ioutil.ReadAll(res.Body)
if err != nil {
return "", err
return "", fmt.Errorf("reading response body: %v", err)
}
log.Debugln(string(body))
wanipregex := configuration.WanIPRegex
if wanipregex == "" {
wanipregex = "wan_ipaddr::([0-9.]*)}"