package launchpad import ( "bufio" "errors" "fmt" "net/http" "os" "regexp" "strings" "time" "github.com/MichaelMure/git-bug/bridge/core" "github.com/MichaelMure/git-bug/cache" ) var ErrBadProjectURL = errors.New("bad Launchpad project URL") const ( target = "launchpad-preview" keyProject = "project" defaultTimeout = 60 * time.Second ) func (l *Launchpad) Configure(repo *cache.RepoCache, params core.BridgeParams) (core.Configuration, error) { if params.TokenRaw != "" { fmt.Println("warning: token params are ineffective for a Launchpad bridge") } if params.Owner != "" { fmt.Println("warning: --owner is ineffective for a Launchpad bridge") } conf := make(core.Configuration) var err error var project string switch { case params.Project != "": project = params.Project case params.URL != "": // get project name from url project, err = splitURL(params.URL) default: // get project name from terminal prompt project, err = promptProjectName() } if err != nil { return nil, err } // verify project ok, err := validateProject(project) if err != nil { return nil, err } if !ok { return nil, fmt.Errorf("project doesn't exist") } conf[core.ConfigKeyTarget] = target conf[keyProject] = project err = l.ValidateConfig(conf) if err != nil { return nil, err } return conf, nil } func (*Launchpad) 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[keyProject]; !ok { return fmt.Errorf("missing %s key", keyProject) } return nil } func promptProjectName() (string, error) { for { fmt.Print("Launchpad project name: ") line, err := bufio.NewReader(os.Stdin).ReadString('\n') if err != nil { return "", err } line = strings.TrimRight(line, "\n") if line == "" { fmt.Println("Project name is empty") continue } return line, nil } } func validateProject(project string) (bool, error) { url := fmt.Sprintf("%s/%s", apiRoot, project) client := &http.Client{ Timeout: defaultTimeout, } resp, err := client.Get(url) if err != nil { return false, err } return resp.StatusCode == http.StatusOK, nil } // extract project name from url func splitURL(url string) (string, error) { re, err := regexp.Compile(`launchpad\.net[\/:]([^\/]*[a-z]+)`) if err != nil { panic("regexp compile:" + err.Error()) } res := re.FindStringSubmatch(url) if res == nil { return "", ErrBadProjectURL } return res[1], nil }