// TODO: this can be optimized significantly..........
// Ping / DecodeConfig ... do we have to use image magick.......?
func GetImageInfo(ctx context.Context, w http.ResponseWriter, r *http.Request) {
url := r.URL.Query().Get("url")
if url == "" {
respond.ApiError(w, 422, errors.New("no image url"))
return
}
response, err := app.Fetcher.Get(ctx, url)
if err != nil {
respond.ApiError(w, 422, err)
return
}
data := response.Data
ng := imagick.Engine{}
imfo, err := ng.GetImageInfo(data)
if err != nil {
respond.ApiError(w, 422, err)
return
}
imfo.URL = response.URL.String()
imfo.Mimetype = MimeTypes[imfo.Format]
w.Header().Set("X-Meta-Width", fmt.Sprintf("%d", imfo.Width))
w.Header().Set("X-Meta-Height", fmt.Sprintf("%d", imfo.Height))
w.Header().Set("Cache-Control", fmt.Sprintf("public, max-age=%d", app.Config.CacheMaxAge))
respond.JSON(w, 200, imfo)
}
func (im *Image) LoadImage() (err error) {
defer metrics.MeasureSince([]string{"fn.image.LoadImage"}, time.Now())
// TODO: throttle the number of images we load at a given time..
// this should be configurable...
defer func() {
if r := recover(); r != nil {
var ok bool
err, ok = r.(error)
if !ok {
err = fmt.Errorf("imgry: %v", r)
}
}
}()
var formatHint string
if im.SrcFileExtension() == "ico" {
formatHint = "ico"
}
ng := imagick.Engine{}
im.img, err = ng.LoadBlob(im.Data, formatHint)
if err != nil {
if err == imagick.ErrEngineFailure {
lg.Fatalf("**** ENGINE FAILURE on %s", im.SrcUrl)
}
return err
}
im.sync()
return nil
}