img.go

func (h HTTPAdapter) CreateImage() httprouter.Handle {
	return h.Authenticated(func(w http.ResponseWriter, r *http.Request, p httprouter.Params) {

		MaxSize := 10000000
		if r.ContentLength > int64(MaxSize) {
			http.Error(w, "FILE TOO BIG", 413)
			return
		}

		imageBytes, err := ioutil.ReadAll(io.LimitReader(r.Body, r.ContentLength))
		mustNotBeError(err)
		config, _, err := image.DecodeConfig(bytes.NewReader(imageBytes))
		mustNotBeError(err)
		if config.Width > 9000 || config.Height > 9000 {
			http.Error(w, "IMAGE TOO BIG", 413)
			return
		}
		decodedImage, err := imaging.Decode(bytes.NewReader(imageBytes), imaging.AutoOrientation(true))
		mustNotBeError(err)

		_, err = h.s3Uploader.Upload(&s3manager.UploadInput{
			Key:    aws.String(img.Key()),
			Bucket: aws.String(os.Getenv("IMAGE_SOURCE_BUCKET")),
			Body:   bytes.NewReader(imageBytes),
		})
		mustNotBeError(err)

		go runtime.GC()
	})
}