func (s *Server) handleImage(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
requestFilename := ps.ByName("filename")[1:]
if cacheFile, ok := s.Cache.Get(requestFilename); ok {
// extract url params
height, _ := strconv.Atoi(r.URL.Query().Get("height"))
width, _ := strconv.Atoi(r.URL.Query().Get("width"))
align := r.URL.Query().Get("align")
if align == "" {
align = "cc"
}
// fetch and render, or, read from disk
image, err := cacheFile.Image()
w.Header().Set("Content-Type", cacheFile.FileType())
w.Header().Set("Expires", time.Now().AddDate(1, 0, 0).Format(http.TimeFormat))
w.Header().Set("ETag", fmt.Sprintf("%s,w=%d,h=%d,a=%s", image.Hash, width, height, align))
err = image.Render(w, width, height, align)
if err != nil {
log.Printf("Error rendering %s: %s\n", requestFilename, err.Error())
rest.SetInternalServerErrorResponse(w, err)
return
}
return
}
http.Error(w, "File not found", http.StatusNotFound)
}
func (s *Server) handleReload(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
cache := NewCache(s.Config)
if err := cache.Setup(); err != nil {
log.Printf("Error setting up cache: %s\n", err.Error())
rest.SetInternalServerErrorResponse(w, err)
return
}
s.Cache = cache
rest.SetNoContentResponse(w)
}
func (s *Server) handlePanic(w http.ResponseWriter, r *http.Request, err interface{}) {
rest.SetInternalServerErrorResponse(w, err)
}