package main import ( "archive/tar" "compress/gzip" "encoding/json" "errors" "fmt" "io" "io/fs" "net/http" "os" "path/filepath" "runtime" "strconv" "strings" "time" "github.com/hrfee/jfa-go/common" ) const ( baseURL = "https://builds.hrfee.pw" namespace = "hrfee" repo = "jfa-go" ) type GHRelease struct { HTMLURL string `json:"html_url"` ID int `json:"id"` TagName string `json:"tag_name"` Name string `json:"name"` CreatedAt time.Time `json:"created_at"` PublishedAt time.Time `json:"published_at"` Assets []GHAsset `json:"assets"` Body string `json:"body"` } type GHAsset struct { Name string `json:"name"` State string `json:"state"` UpdatedAt time.Time `json:"updated_at"` BrowserDownloadURL string `json:"browser_download_url"` } type UnixTime struct { time.Time } func (t *UnixTime) UnmarshalJSON(b []byte) (err error) { unix, err := strconv.ParseInt(strings.TrimPrefix(strings.TrimSuffix(string(b), "\""), "\""), 10, 64) if err != nil { return } t.Time = time.Unix(unix, 0) return } func (t UnixTime) MarshalJSON() ([]byte, error) { if t.Time == (time.Time{}) { return []byte("\"\""), nil } return []byte("\"" + strconv.FormatInt(t.Time.Unix(), 10) + "\""), nil } var updater string type BuildType int const ( off BuildType = iota internal // Internal assets through go:embed, no data/. external // External assets in data/, accesses through app.localFS. docker // Only notify of new updates, no self-updating. ) type ApplyUpdate func() error type Update struct { Version string `json:"version"` // vX.X.X or git Commit string `json:"commit"` ReleaseDate int64 `json:"date"` // unix time Description string `json:"description"` // Commit Name/Release title. Changelog string `json:"changelog"` // Changelog, if applicable Link string `json:"link"` // Link to commit/release page, DownloadLink string `json:"download_link"` // Optional link to download page. CanUpdate bool `json:"can_update"` // Whether or not update can be done automatically. update ApplyUpdate `json:"-"` // Function to apply update if possible. } type Tag struct { Ready bool `json:"ready"` // Whether or not build on this tag has completed. Version string `json:"version,omitempty"` // Version/Commit ReleaseDate UnixTime `json:"date"` } var goos = map[string]string{ "darwin": "macOS", "linux": "Linux", "windows": "Windows", } var goarch = map[string]string{ "amd64": "x86_64", "arm64": "arm64", "arm": "armv6", } // func newDockerBuild() Update { // var tag string // if version == "git" { // tag = "docker-unstable" // } else { // tag = "docker-latest" // } // } type Updater struct { version, commit, tag, url, namespace, name string stable bool buildType BuildType httpClient *http.Client timeoutHandler common.TimeoutHandler binary string } func newUpdater(buildroneURL, namespace, repo, version, commit, buildType string) *Updater { bType := off tag := "" switch buildType { case "binary": if binaryType == "internal" { bType = internal tag = "internal" } else { bType = external tag = "external" } case "docker": bType = docker if version == "git" { tag = "docker-unstable" } else { tag = "docker-latest" } default: bType = off } if commit == "unknown" { bType = off } if version == "git" && bType != docker { tag += "-git" } binary := "jfa-go" if runtime.GOOS == "windows" { binary += ".exe" } return &Updater{ httpClient: &http.Client{Timeout: 10 * time.Second}, timeoutHandler: common.NewTimeoutHandler("updater", buildroneURL, true), version: version, commit: commit, buildType: bType, tag: tag, url: buildroneURL, namespace: namespace, name: repo, binary: binary, } } type BuildDTO struct { ID int64 // `json:"id"` Name string // `json:"name"` Date time.Time // `json:"date"` Link string // `json:"link"` Message string Branch string // `json:"branch"` Tags map[string]Tag } func (ud *Updater) GetTag() (Tag, int, error) { if ud.buildType == off { return Tag{}, -1, nil } url := fmt.Sprintf("%s/repo/%s/%s/tag/latest/%s", ud.url, ud.namespace, ud.name, ud.tag) req, _ := http.NewRequest("GET", url, nil) resp, err := ud.httpClient.Do(req) defer ud.timeoutHandler() if err != nil || resp.StatusCode != 200 { return Tag{}, resp.StatusCode, err } defer resp.Body.Close() body, err := io.ReadAll(resp.Body) if err != nil { return Tag{}, -1, err } var tag Tag err = json.Unmarshal(body, &tag) if tag.Version == "" { err = errors.New("Tag was empty") } return tag, resp.StatusCode, err } func (t *Tag) IsNew() bool { return t.Version[:7] != commit } func (ud *Updater) getRelease() (release GHRelease, status int, err error) { url := fmt.Sprintf("https://api.github.com/repos/%s/%s/releases/latest", ud.namespace, ud.name) req, _ := http.NewRequest("GET", url, nil) resp, err := ud.httpClient.Do(req) status = resp.StatusCode defer ud.timeoutHandler() if err != nil || resp.StatusCode != 200 { return } defer resp.Body.Close() body, err := io.ReadAll(resp.Body) if err != nil { return } err = json.Unmarshal(body, &release) return } func (ud *Updater) GetUpdate(tag Tag) (update Update, status int, err error) { switch ud.buildType { case internal: if ud.tag == "internal-git" { update, status, err = ud.getUpdateInternalGit(tag) } else if ud.tag == "internal" { update, status, err = ud.getUpdateInternal(tag) } case external, docker: if strings.Contains(ud.tag, "git") || ud.tag == "docker-unstable" { update, status, err = ud.getCommitGit(tag) } else { var release GHRelease release, status, err = ud.getRelease() if err != nil { return } update = Update{ Changelog: release.Body, Description: release.Name, Version: release.TagName, Commit: tag.Version, Link: release.HTMLURL, ReleaseDate: release.PublishedAt.Unix(), } } if ud.buildType == docker { update.DownloadLink = fmt.Sprintf("https://hub.docker.com/r/%s/%s/tags", ud.namespace, ud.name) } } return } func (ud *Updater) getUpdateInternal(tag Tag) (update Update, status int, err error) { release, status, err := ud.getRelease() update = Update{ Changelog: release.Body, Description: release.Name, Version: release.TagName, Commit: tag.Version, Link: release.HTMLURL, ReleaseDate: release.PublishedAt.Unix(), } if err != nil || status != 200 { return } updateFunc, status, err := ud.downloadInternal(&release.Assets, tag) if err == nil && status == 200 { update.CanUpdate = true update.update = updateFunc } return } func (ud *Updater) getCommitGit(tag Tag) (update Update, status int, err error) { url := fmt.Sprintf("%s/repo/%s/%s/build/%s", ud.url, ud.namespace, ud.name, tag.Version) req, _ := http.NewRequest("GET", url, nil) resp, err := ud.httpClient.Do(req) status = resp.StatusCode defer ud.timeoutHandler() if err != nil || resp.StatusCode != 200 { return } defer resp.Body.Close() body, err := io.ReadAll(resp.Body) if err != nil { return } var build BuildDTO err = json.Unmarshal(body, &build) if err != nil { return } update = Update{ Description: build.Name, Version: "git", Commit: tag.Version, Link: build.Link, ReleaseDate: tag.ReleaseDate.Unix(), } return } func (ud *Updater) getUpdateInternalGit(tag Tag) (update Update, status int, err error) { update, status, err = ud.getCommitGit(tag) if err != nil || status != 200 { return } updateFunc, status, err := ud.downloadInternalGit() if err == nil && status == 200 { update.CanUpdate = true update.update = updateFunc } return } func getBuildName() string { operatingSystem, ok := goos[runtime.GOOS] if !ok { for _, v := range goos { if strings.Contains(v, runtime.GOOS) { operatingSystem = v break } } } if operatingSystem == "" { return "" } arch, ok := goarch[runtime.GOARCH] if !ok { for _, v := range goarch { if strings.Contains(v, runtime.GOARCH) { arch = v break } } } if arch == "" { return "" } return operatingSystem + "_" + arch } func (ud *Updater) downloadInternal(assets *[]GHAsset, tag Tag) (applyUpdate ApplyUpdate, status int, err error) { return ud.pullInternal(ud.getInternalURL(assets, tag)) } func (ud *Updater) downloadInternalGit() (applyUpdate ApplyUpdate, status int, err error) { return ud.pullInternal(ud.getInternalGitURL()) } func (ud *Updater) getInternalURL(assets *[]GHAsset, tag Tag) string { buildName := getBuildName() if buildName == "" { return "" } url := "" for _, asset := range *assets { if strings.Contains(asset.Name, buildName) { url = asset.BrowserDownloadURL break } } return url } func (ud *Updater) getInternalGitURL() string { buildName := getBuildName() if buildName == "" { return "" } return fmt.Sprintf("%s/repo/%s/%s/latest/file/%s", ud.url, ud.namespace, ud.name, buildName) } func (ud *Updater) pullInternal(url string) (applyUpdate ApplyUpdate, status int, err error) { if url == "" { return } req, _ := http.NewRequest("GET", url, nil) resp, err := ud.httpClient.Do(req) status = resp.StatusCode if err != nil || resp.StatusCode != 200 { return } defer resp.Body.Close() gz, err := gzip.NewReader(resp.Body) if err != nil { status = -1 return } defer gz.Close() tarReader := tar.NewReader(gz) var header *tar.Header for { header, err = tarReader.Next() if err == io.EOF { break } if err != nil { status = -1 return } switch header.Typeflag { case tar.TypeReg: // Search only for file named ud.binary if header.Name == ud.binary { var file string file, err = os.Executable() if err != nil { return } var path string path, err = filepath.EvalSymlinks(file) if err != nil { return } var info fs.FileInfo info, err = os.Stat(path) if err != nil { return } mode := info.Mode() var f *os.File f, err = os.OpenFile(path+"_", os.O_RDWR|os.O_CREATE|os.O_TRUNC, mode) if err != nil { return } defer f.Close() _, err = io.Copy(f, tarReader) if err != nil { return } applyUpdate = func() error { oldName := path + "-" + version + "-" + commit err := os.Rename(path, oldName) if err != nil { return err } err = os.Rename(path+"_", path) if err != nil { return err } return os.Remove(oldName) } return } } } err = errors.New("Couldn't find file: " + ud.binary) return } // func newInternalBuild() Update { // tag := "internal" // func update(path string) err { // if // fp, err := os.Executable() // if err != nil { // return err // } // fullPath, err := filepath.EvalSymlinks(fp) // if err != nil { // return err // } // newBinary, // } func (app *appContext) checkForUpdates() { for { go func() { tag, status, err := app.updater.GetTag() if status != 200 || err != nil { if err != nil && strings.Contains(err.Error(), "strconv.ParseInt") { app.err.Println("No new updates available.") } else if status != -1 { // -1 means updates disabled, we don't need to log it. app.err.Printf("Failed to get latest tag (%d): %v", status, err) } return } if tag != app.tag && tag.IsNew() { app.info.Println("Update found") update, status, err := app.updater.GetUpdate(tag) if status != 200 || err != nil { app.err.Printf("Failed to get update (%d): %v", status, err) return } app.tag = tag app.update = update app.newUpdate = true } }() time.Sleep(30 * time.Minute) } }