func configCmd()

in server/config.go [41:88]
48 lines of code
12 McCabe index (conditional complexity)

func configCmd(w http.ResponseWriter, r *http.Request) {
	var err error
	s := configReq{}
	g := config.AppConfigODS{}
	ct, _, _ := mime.ParseMediaType(r.Header.Get("Content-Type"))
	if r.FormValue("cmd") == "get" {
		var b []byte
		b, err = yaml.Marshal(config.Get().AppConfigODS)
		if err == nil {
			w.Header().Set("Content-Type", "application/x-yaml")
			_, _ = w.Write(b)
		}
	} else { // set
		switch {
		case ct == "application/x-www-form-urlencoded", ct == "multipart/form-data", ct == "":
			if len(r.FormValue("body")) == 0 {
				err = errors.New("config body is empty")
			} else {
				err = yaml.Unmarshal([]byte(r.FormValue("body")), &g)
			}
		case ct == "application/x-yaml", ct == "text/vnd.yaml":
			if r.Body == nil {
				err = errors.New("config body is empty")
			} else {
				err = yaml.NewDecoder(r.Body).Decode(&g)
			}
		case ct == "application/json":
			if r.Body == nil {
				err = errors.New("config body is empty")
			} else {
				err = json.NewDecoder(r.Body).Decode(&g)
			}
		default:
			code := http.StatusUnsupportedMediaType
			http.Error(w, http.StatusText(code), code)
			return
		}
		if err == nil {
			if err = config.Set(&g); err == nil {
				err = config.Save()
			}
		}
	}
	if err != nil {
		log.Errorf("Config http: cmd=%v, body='%v', error=%v", s.Cmd, g, err)
		http.Error(w, err.Error(), http.StatusInternalServerError)
	}
}