Golang DDNS阿里云脚本
我们使用公网ipv4或者ipv6的时候，可能需要动态刷新域名的记录值，这时候就需要在阿里云的api手册里面寻找答案了
- https://next.api.aliyun.com/api/Alidns/2015-01-09/UpdateDomainRecord
可以看到有四个字段是必须要写的，这里分享一下笔者的脚本
这里面的recordId可以在控制台获取到
package main
import (
"fmt"
alidns20150109 "github.com/alibabacloud-go/alidns-20150109/v2/client"
openapi "github.com/alibabacloud-go/darabonba-openapi/client"
"github.com/alibabacloud-go/tea/tea"
"net"
"os"
"regexp"
"strings"
"time"
)
var (
a_k = "your a_k"
s_k = "your s_k"
recordId = "your recordId"
DomainURL = "" // 你的域名 xxx.xxx
rr = "" // 你的域名的子域名
Type = "" // ipv6为 `AAAA`
aliDnsServer = "alidns.cn-hangzhou.aliyuncs.com"
dateFormatter = "2006-01-02 15:04:05.000 Mon Jan"
)
func main() {
err := refreshDDNS(tea.StringSlice(os.Args[1:]))
if err != nil {
panic(err)
}
}
// CreateClient 创建发起请求的client
func CreateClient(accessKeyId *string, accessKeySecret *string) (_result *alidns20150109.Client, _err error) {
config := &openapi.Config{
// 您的AccessKey ID
AccessKeyId: accessKeyId,
// 您的AccessKey Secret
AccessKeySecret: accessKeySecret,
}
// 访问的域名
config.Endpoint = tea.String(aliDnsServer)
_result = &alidns20150109.Client{
}
_result, _err = alidns20150109.NewClient(config)
return _result, _err
}
// 封装获取对应解析记录的方法
func getRecordIp(client *alidns20150109.Client, recordId *string) *string {
describeDomainRecordsRequest := &alidns20150109.DescribeDomainRecordsRequest{
DomainName: tea.String(DomainURL),
}
// 复制代码运行请自行打印 API 的返回值
result, _err := client.DescribeDomainRecords(describeDomainRecordsRequest)
if _err != nil {
return nil
}
records := result.Body.DomainRecords.Record
var recordIp *string
for _, record := range records {
if *record.RecordId == *recordId {
recordIp = record.Value
fmt.Printf("%s | now record value of domain is %s\n", *NowTime(), *record.Value)
}
}
return recordIp
}
func NowTime() *string {
format := time.Now().Format(dateFormatter)
format = "【" + format + "】"
return &format
}
// 执行比对当前ip和dns值，并更新操作
func refreshDDNS(args []*string) (_err error) {
// 获取地址
client, _err := CreateClient(tea.String(a_k), tea.String(s_k))
if _err != nil {
return _err
}
recordIp := getRecordIp(client, &recordId)
if recordIp == nil {
fmt.Printf("%s | 获取Ip解析记录失败\n", *NowTime())
return _err
}
// 获取本机ipv6地址
realIp := getMyIPV6()
if *realIp == "" {
return _err
}
if *recordIp == *realIp {
fmt.Printf("%s | real ip %s equals dns record\n", *NowTime(), *realIp)
} else {
updateDomainRecordRequest := &alidns20150109.UpdateDomainRecordRequest{
RecordId: tea.String(recordId),
RR: tea.String(rr),
Type: tea.String(Type),
Value: realIp,
}
// 复制代码运行请自行打印 API 的返回值
_, _err := client.UpdateDomainRecord(updateDomainRecordRequest)
if _err != nil {
return _err
} else {
recordIp = getRecordIp(client, &recordId)
fmt.Printf("%s | update dns record success, now record ip is %s\n", *NowTime(), *recordIp)
}
}
return _err
}
// getMyIPV6
//
// @Description: 获取本地ipv6地址，通过读取网卡信息的方式，我这里读取的是`/64`的，也可以默认读取第一个就行
// @return *string
func getMyIPV6() *string {
s, err := net.InterfaceAddrs()
emptyStr := ""
if err != nil {
return &emptyStr
}
for _, a := range s {
i := regexp.MustCompile(`(\w+:){7}\w+/64`).FindString(a.String())
if strings.Count(i, ":") == 7 {
// 截取 `/64前面的一段`
split := strings.Split(i, "/")
s2 := split[0]
return &s2
}
}
return &emptyStr
}
// 通过访问网站的方式获取ip地址
//func GetIpHost() *string {
// resp, err := http.Get("https://link.juejin.cn/?target=https%3A%2F%2Fwww.taobao.com%2Fhelp%2Fgetip.php")
// if err != nil {
// println("ip地址查询异常，info：", err)
// }
// body, err := ioutil.ReadAll(resp.Body)
// if err != nil {
// fmt.Println("ip地址查询异常，info：", err)
// }
// result := IpResp{}
// err = json.Unmarshal(body, &result)
// marshal, _ := json.Marshal(result)
// fmt.Printf("%s|====>>>>ip query result is %s\n", *NowTime(), marshal)
// if err != nil {
// fmt.Printf("%s|ip query result is %s\n", *NowTime(), string(body))
// return nil
// } else {
// fmt.Printf("%s|ip query result is %s\n", *NowTime(), *result.Ip)
// }
// return result.Ip
//}