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102 lines
2.2 KiB
Go
102 lines
2.2 KiB
Go
// +build release
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package main
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import (
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"bytes"
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"crypto/ed25519"
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"encoding/base64"
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"fmt"
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"io/ioutil"
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"log"
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"net/http"
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"os"
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"strings"
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)
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var updateURL = "https://noisetorch.epicgamer.org"
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var publicKeyString = "3mL+rBi4yBZ1wGimQ/oSQCjxELzgTh+673H4JdzQBOk="
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type updateui struct {
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serverVersion string
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available bool
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triggered bool
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updatingText string
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}
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func updateCheck(ctx *ntcontext) {
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log.Println("Checking for updates")
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bodybuf, err := fetchFile("version.txt")
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if err != nil {
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log.Println("Couldn't fetch version", err)
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return
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}
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body := strings.TrimSpace(string(bodybuf))
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ctx.update.serverVersion = body
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if ctx.update.serverVersion != version {
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ctx.update.available = true
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}
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}
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func update(ctx *ntcontext) {
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sig, err := fetchFile("NoiseTorch_x64.tgz.sig")
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if err != nil {
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log.Println("Couldn't fetch signature", err)
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ctx.update.updatingText = "Update failed!"
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(*ctx.masterWindow).Changed()
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return
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}
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tgz, err := fetchFile("NoiseTorch_x64.tgz")
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if err != nil {
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log.Println("Couldn't fetch tgz", err)
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ctx.update.updatingText = "Update failed!"
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(*ctx.masterWindow).Changed()
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return
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}
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verified := ed25519.Verify(publickey(), tgz, sig)
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log.Printf("VERIFIED UPDATE: %t\n", verified)
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if !verified {
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log.Printf("SIGNATURE VERIFICATION FAILED, ABORTING UPDATE!\n")
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ctx.update.updatingText = "Update failed!"
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(*ctx.masterWindow).Changed()
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return
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}
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untar(bytes.NewReader(tgz), os.Getenv("HOME"))
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pkexecSetcapSelf()
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log.Printf("Update installed!\n")
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ctx.update.updatingText = "Update installed! (Restart NoiseTorch to apply)"
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(*ctx.masterWindow).Changed()
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}
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func fetchFile(file string) ([]byte, error) {
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resp, err := http.Get(updateURL + "/" + file)
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if err != nil {
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return nil, err
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}
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if resp.StatusCode != http.StatusOK {
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return nil, fmt.Errorf("received on 200 status code when fetching %s. Status: %s", file, resp.Status)
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}
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body, err := ioutil.ReadAll(resp.Body)
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if err != nil {
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return nil, err
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}
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return body, nil
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}
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func publickey() []byte {
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pub, err := base64.StdEncoding.DecodeString(publicKeyString)
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if err != nil {
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panic(err) // it's hardcoded, we should never hit this, panic if we do
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}
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return pub
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}
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