Пример #1
0
func (this *service) ServeHTTP(w http.ResponseWriter, r *http.Request) {
	urlPath := r.URL.Path
	hash := urlPath[strings.LastIndex(urlPath, "/")+1:]
	size := this.mustInt(r, 290, "s", "size") // default size = 290*290

	avatar := New(hash, this.cacheDir)
	avatar.AlterImage = this.altImage
	if avatar.Expired() {
		if err := avatar.UpdateTimeout(time.Millisecond * 1000); err != nil {
			log.Trace("avatar update error: %v", err)
			return
		}
	}
	if modtime, err := avatar.Modtime(); err == nil {
		etag := fmt.Sprintf("size(%d)", size)
		if t, err := time.Parse(http.TimeFormat, r.Header.Get("If-Modified-Since")); err == nil && modtime.Before(t.Add(1*time.Second)) && etag == r.Header.Get("If-None-Match") {
			h := w.Header()
			delete(h, "Content-Type")
			delete(h, "Content-Length")
			w.WriteHeader(http.StatusNotModified)
			return
		}
		w.Header().Set("Last-Modified", modtime.UTC().Format(http.TimeFormat))
		w.Header().Set("ETag", etag)
	}
	w.Header().Set("Content-Type", "image/jpeg")

	if err := avatar.Encode(w, size); err != nil {
		log.Warn("avatar encode error: %v", err)
		w.WriteHeader(500)
	}
}
Пример #2
0
func NewContext() {
	var (
		e error
	)
	Cfg, e = ini.Load("conf/app.ini")
	if e != nil {
		log.Fatal(4, "Fail to load conf %v", e)
	}
	if com.IsFile(CustomConf) {
		if e = Cfg.Append(CustomConf); e != nil {
			log.Fatal(4, "Fail to load custom conf '%s': %v", CustomConf, e)
		}
	} else {
		log.Warn("Custom config (%s) not found, ignore this if you're running first time", CustomConf)
	}
	Cfg.NameMapper = ini.AllCapsUnderscore
}