147 lines
3.1 KiB
Go
147 lines
3.1 KiB
Go
package main
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import (
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"encoding/json"
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"fmt"
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"gopkg.in/src-d/go-git.v4"
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"gopkg.in/src-d/go-git.v4/plumbing/object"
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githttp "gopkg.in/src-d/go-git.v4/plumbing/transport/http"
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"io/ioutil"
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"net/http"
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"os"
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"path"
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"regexp"
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"strings"
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"time"
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)
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type Configuration struct {
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RepositoryUrl string `json:"url"`
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Username string `json:"name"`
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Email string `json:"email"`
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GitLogin string `json:"login"`
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GitPassword string `json:"password"`
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}
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var configPath string
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func main() {
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Info("Running dnsupdater...")
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configPath = os.Args[1]
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if confPathExists, _ := exists(configPath); !confPathExists{
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configPath = "./data";
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}
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file, _ := os.Open(path.Join(configPath,"conf.json"))
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defer file.Close()
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decoder := json.NewDecoder(file)
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configuration := Configuration{}
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err := decoder.Decode(&configuration)
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err = os.RemoveAll(path.Join(configPath,"data"))
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CheckIfError(err)
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_, err = git.PlainClone(path.Join(configPath,"data"), false, &git.CloneOptions{
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URL: configuration.RepositoryUrl,
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Progress: os.Stdout,
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})
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CheckIfError(err)
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currentIp := GetCurrentIp()
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newIp := GetOutboundIP()
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if currentIp == newIp {
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Info("Ip has not changed %s", currentIp)
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os.Exit(0)
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}
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Info("Ip has changed %s -> %s", currentIp, newIp)
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SetCurrentIp(currentIp, newIp)
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repo, err := git.PlainOpen(path.Join(configPath,"data"))
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CheckIfError(err)
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w, err := repo.Worktree()
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CheckIfError(err)
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_, err = w.Add("templates/home_a.lua")
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CheckIfError(err)
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status, err := w.Status()
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CheckIfError(err)
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fmt.Println(status)
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_, err = w.Commit(fmt.Sprintf("Changement d'IP maison : %s -> %s", currentIp, newIp), &git.CommitOptions{
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Author: &object.Signature{
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Name: configuration.Username,
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Email: configuration.Email,
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When: time.Now().Local(),
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},
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})
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CheckIfError(err)
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err = repo.Push(&git.PushOptions{
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Auth: &githttp.BasicAuth{
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Username: configuration.GitLogin,
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Password: configuration.GitPassword,
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},
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})
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CheckIfError(err)
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}
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func GetCurrentIp() string {
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b, err := ioutil.ReadFile(path.Join(configPath,"data/templates/home_a.lua"))
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CheckIfError(err)
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re := regexp.MustCompile("\"(.*?)\"")
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match := re.FindStringSubmatch(string(b))
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return match[1]
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}
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func SetCurrentIp(oldip string, newip string) {
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b, err := ioutil.ReadFile(path.Join(configPath,"data/templates/home_a.lua"))
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CheckIfError(err)
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s := string(b)
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s = strings.Replace(s, oldip, newip, 1)
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ioutil.WriteFile(path.Join(configPath,"data/templates/home_a.lua"), []byte(s), 0644)
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}
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func CheckIfError(err error) {
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if err == nil {
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return
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}
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fmt.Printf("\x1b[31;1m%s\x1b[0m\n", fmt.Sprintf("error: %s", err))
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os.Exit(1)
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}
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func GetOutboundIP() string {
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url := "https://diagnostic.opendns.com/myip"
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req, err := http.NewRequest("GET", url, nil)
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CheckIfError(err)
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res, err := http.DefaultClient.Do(req)
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CheckIfError(err)
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defer res.Body.Close()
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body, err := ioutil.ReadAll(res.Body)
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CheckIfError(err)
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return string(body)
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}
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func exists(path string) (bool, error) {
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_, err := os.Stat(path)
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if err == nil {
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return true, nil
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}
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if os.IsNotExist(err) {
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return false, nil
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}
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return true, err
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}
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func Info(format string, args ...interface{}) {
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fmt.Printf("\x1b[34;1m%s\x1b[0m\n", fmt.Sprintf(format, args...))
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}
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