Belac Darkstorm
109 lines
2.2 KiB
Go
109 lines
2.2 KiB
Go
package main
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import (
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"bufio"
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"io"
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"net/http"
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"os"
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"strconv"
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"strings"
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)
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const (
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versionURL = "https://www.dropbox.com/s/a0xizzo0a4vsfqt/Version?dl=1"
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downloadURL = "https://github.com/CalebQ42/LinuxPA/releases/download/vXXX/LinuxPA"
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)
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//Thanks to https://www.socketloop.com/tutorials/golang-download-file-example
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//For some of the code
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//Returns if success
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func versionDL() (bool, error) {
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versionFile, err := os.Create("PortableApps/LinuxPACom/Version")
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if err != nil {
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return false, err
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}
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versionFile.Chmod(0777)
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check := http.Client{
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CheckRedirect: func(r *http.Request, via []*http.Request) error {
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r.URL.Opaque = r.URL.Path
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return nil
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},
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}
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response, err := check.Get(versionURL)
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if err != nil {
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return false, err
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}
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_, err = io.Copy(versionFile, response.Body)
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if err != nil {
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return false, err
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}
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return true, nil
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}
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func getVersionFileInfo() string {
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fil, err := os.Open("PortableApps/LinuxPACom/Version")
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if err != nil {
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return "Error!"
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}
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rdr := bufio.NewReader(fil)
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out, _, _ := rdr.ReadLine()
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return string(out)
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}
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func checkForUpdate(new string) (bool, error) {
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curSlice := strings.Split(version, ".")
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newSlice := strings.Split(new, ".")
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curNums := make([]int, 4)
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newNums := make([]int, 4)
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for i, v := range curSlice {
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num, err := strconv.Atoi(v)
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if err == nil {
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curNums[i] = num
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}
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num, err = strconv.Atoi(newSlice[i])
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if err == nil {
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newNums[i] = num
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} else {
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return false, err
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}
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if newNums[i] > curNums[i] {
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return true, nil
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} else if curNums[i] > newNums[i] {
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return false, nil
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}
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}
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return false, nil
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}
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func downloadUpdate(newVersion string) (bool, error) {
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url := strings.Replace(downloadURL, "XXX", newVersion, -1)
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err := os.Rename("LinuxPA", ".LinuxPA.old")
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if err != nil {
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return false, err
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}
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fil, err := os.Create("LinuxPA")
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fil.Chmod(0777)
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defer fil.Close()
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if err != nil {
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os.Rename(".LinuxPA.old", "LinuxPA")
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return false, err
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}
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check := http.Client{
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CheckRedirect: func(r *http.Request, via []*http.Request) error {
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r.URL.Opaque = r.URL.Path
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return nil
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},
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}
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re, err := check.Get(url)
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if err != nil {
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return false, err
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}
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defer re.Body.Close()
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_, err = io.Copy(fil, re.Body)
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if err != nil {
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return false, err
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}
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return true, nil
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}
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