package gitlab import ( "bufio" "fmt" "net/url" "os" "path" "regexp" "sort" "strconv" "strings" "time" text "github.com/MichaelMure/go-term-text" "github.com/pkg/errors" "github.com/xanzy/go-gitlab" "github.com/MichaelMure/git-bug/bridge/core" "github.com/MichaelMure/git-bug/bridge/core/auth" "github.com/MichaelMure/git-bug/cache" "github.com/MichaelMure/git-bug/input" "github.com/MichaelMure/git-bug/repository" "github.com/MichaelMure/git-bug/util/colors" ) var ( ErrBadProjectURL = errors.New("bad project url") ) func (g *Gitlab) Configure(repo *cache.RepoCache, params core.BridgeParams) (core.Configuration, error) { if params.Project != "" { fmt.Println("warning: --project is ineffective for a gitlab bridge") } if params.Owner != "" { fmt.Println("warning: --owner is ineffective for a gitlab bridge") } if params.Login != "" { fmt.Println("warning: --login is ineffective for a gitlab bridge") } conf := make(core.Configuration) var err error var baseUrl string switch { case params.BaseURL != "": baseUrl = params.BaseURL default: baseUrl, err = promptBaseUrlOptions() if err != nil { return nil, errors.Wrap(err, "base url prompt") } } var url string // get project url switch { case params.URL != "": url = params.URL default: // terminal prompt url, err = promptURL(repo, baseUrl) if err != nil { return nil, errors.Wrap(err, "url prompt") } } if !strings.HasPrefix(url, params.BaseURL) { return nil, fmt.Errorf("base URL (%s) doesn't match the project URL (%s)", params.BaseURL, url) } var cred auth.Credential switch { case params.CredPrefix != "": cred, err = auth.LoadWithPrefix(repo, params.CredPrefix) if err != nil { return nil, err } case params.TokenRaw != "": token := auth.NewToken(params.TokenRaw, target) login, err := getLoginFromToken(baseUrl, token) if err != nil { return nil, err } token.SetMetadata(auth.MetaKeyLogin, login) cred = token default: cred, err = promptTokenOptions(repo, baseUrl) if err != nil { return nil, err } } token, ok := cred.(*auth.Token) if !ok { return nil, fmt.Errorf("the Gitlab bridge only handle token credentials") } // validate project url and get its ID id, err := validateProjectURL(baseUrl, url, token) if err != nil { return nil, errors.Wrap(err, "project validation") } conf[core.ConfigKeyTarget] = target conf[keyProjectID] = strconv.Itoa(id) conf[keyGitlabBaseUrl] = baseUrl err = g.ValidateConfig(conf) if err != nil { return nil, err } // don't forget to store the now known valid token if !auth.IdExist(repo, cred.ID()) { err = auth.Store(repo, cred) if err != nil { return nil, err } } return conf, nil } func (g *Gitlab) ValidateConfig(conf core.Configuration) error { if v, ok := conf[core.ConfigKeyTarget]; !ok { return fmt.Errorf("missing %s key", core.ConfigKeyTarget) } else if v != target { return fmt.Errorf("unexpected target name: %v", v) } if _, ok := conf[keyGitlabBaseUrl]; !ok { return fmt.Errorf("missing %s key", keyGitlabBaseUrl) } if _, ok := conf[keyProjectID]; !ok { return fmt.Errorf("missing %s key", keyProjectID) } return nil } func promptBaseUrlOptions() (string, error) { index, err := input.PromptChoice("Gitlab base url", []string{ "https://gitlab.com", "enter your own base url", }) if err != nil { return "", err } if index == 0 { return defaultBaseURL, nil } else { return promptBaseUrl() } } func promptBaseUrl() (string, error) { validator := func(name string, value string) (string, error) { u, err := url.Parse(value) if err != nil { return err.Error(), nil } if u.Scheme == "" { return "missing scheme", nil } if u.Host == "" { return "missing host", nil } return "", nil } return input.Prompt("Base url", "url", input.Required, validator) } func promptTokenOptions(repo repository.RepoConfig, baseUrl string) (auth.Credential, error) { for { creds, err := auth.List(repo, auth.WithTarget(target), auth.WithKind(auth.KindToken)) if err != nil { return nil, err } // if we don't have existing token, fast-track to the token prompt if len(creds) == 0 { return promptToken(baseUrl) } fmt.Println() fmt.Println("[1]: enter my token") fmt.Println() fmt.Println("Existing tokens for Gitlab:") sort.Sort(auth.ById(creds)) for i, cred := range creds { token := cred.(*auth.Token) fmt.Printf("[%d]: %s => %s (%s)\n", i+2, colors.Cyan(token.ID().Human()), colors.Red(text.TruncateMax(token.Value, 10)), token.CreateTime().Format(time.RFC822), ) } fmt.Println() fmt.Print("Select option: ") line, err := bufio.NewReader(os.Stdin).ReadString('\n') fmt.Println() if err != nil { return nil, err } line = strings.TrimSpace(line) index, err := strconv.Atoi(line) if err != nil || index < 1 || index > len(creds)+1 { fmt.Println("invalid input") continue } switch index { case 1: return promptToken(baseUrl) default: return creds[index-2], nil } } } func promptToken(baseUrl string) (*auth.Token, error) { fmt.Printf("You can generate a new token by visiting %s.\n", path.Join(baseUrl, "profile/personal_access_tokens")) fmt.Println("Choose 'Create personal access token' and set the necessary access scope for your repository.") fmt.Println() fmt.Println("'api' access scope: to be able to make api calls") fmt.Println() re, err := regexp.Compile(`^[a-zA-Z0-9\-\_]{20}$`) if err != nil { panic("regexp compile:" + err.Error()) } var login string validator := func(name string, value string) (complaint string, err error) { if !re.MatchString(value) { return "token has incorrect format", nil } login, err = getLoginFromToken(baseUrl, auth.NewToken(value, target)) if err != nil { return fmt.Sprintf("token is invalid: %v", err), nil } return "", nil } rawToken, err := input.Prompt("Enter token", "token", input.Required, validator) token := auth.NewToken(rawToken, target) token.SetMetadata(auth.MetaKeyLogin, login) return token, nil } func promptURL(repo repository.RepoCommon, baseUrl string) (string, error) { // remote suggestions remotes, err := repo.GetRemotes() if err != nil { return "", errors.Wrap(err, "getting remotes") } validRemotes := getValidGitlabRemoteURLs(baseUrl, remotes) if len(validRemotes) > 0 { for { fmt.Println("\nDetected projects:") // print valid remote gitlab urls for i, remote := range validRemotes { fmt.Printf("[%d]: %v\n", i+1, remote) } fmt.Printf("\n[0]: Another project\n\n") fmt.Printf("Select option: ") line, err := bufio.NewReader(os.Stdin).ReadString('\n') if err != nil { return "", err } line = strings.TrimSpace(line) index, err := strconv.Atoi(line) if err != nil || index < 0 || index > len(validRemotes) { fmt.Println("invalid input") continue } // if user want to enter another project url break this loop if index == 0 { break } return validRemotes[index-1], nil } } // manually enter gitlab url for { fmt.Print("Gitlab project URL: ") line, err := bufio.NewReader(os.Stdin).ReadString('\n') if err != nil { return "", err } url := strings.TrimSpace(line) if url == "" { fmt.Println("URL is empty") continue } return url, nil } } func getProjectPath(baseUrl, projectUrl string) (string, error) { cleanUrl := strings.TrimSuffix(projectUrl, ".git") cleanUrl = strings.Replace(cleanUrl, "git@", "https://", 1) objectUrl, err := url.Parse(cleanUrl) if err != nil { return "", ErrBadProjectURL } objectBaseUrl, err := url.Parse(baseUrl) if err != nil { return "", ErrBadProjectURL } if objectUrl.Hostname() != objectBaseUrl.Hostname() { return "", fmt.Errorf("base url and project url hostnames doesn't match") } return objectUrl.Path[1:], nil } func getValidGitlabRemoteURLs(baseUrl string, remotes map[string]string) []string { urls := make([]string, 0, len(remotes)) for _, u := range remotes { path, err := getProjectPath(baseUrl, u) if err != nil { continue } urls = append(urls, fmt.Sprintf("%s/%s", baseUrl, path)) } return urls } func validateProjectURL(baseUrl, url string, token *auth.Token) (int, error) { projectPath, err := getProjectPath(baseUrl, url) if err != nil { return 0, err } client, err := buildClient(baseUrl, token) if err != nil { return 0, err } project, _, err := client.Projects.GetProject(projectPath, &gitlab.GetProjectOptions{}) if err != nil { return 0, errors.Wrap(err, "wrong token scope ou non-existent project") } return project.ID, nil } func getLoginFromToken(baseUrl string, token *auth.Token) (string, error) { client, err := buildClient(baseUrl, token) if err != nil { return "", err } user, _, err := client.Users.CurrentUser() if err != nil { return "", err } if user.Username == "" { return "", fmt.Errorf("gitlab say username is empty") } return user.Username, nil }