func (im *Images) DELETE(c *kocha.Context) kocha.Result {
// FIXME: auto-generated by kocha
//iid := c.Params.Get("imageId")
return kocha.Render(c)
}
func (im *Images) GET(c *kocha.Context) kocha.Result {
// FIXME: auto-generated by kocha
return kocha.Render(c)
}
func (im *Images) POST(c *kocha.Context) kocha.Result {
//リクエスト容量が大きかったら最初から弾く
if c.Request.ContentLength > MaxBytes {
return kocha.RenderError(c, http.StatusBadRequest, "Size of your reqest is too large")
}
//FormDataの取得
f, h, err := c.Request.FormFile("image")
if err != nil {
return kocha.RenderError(c, http.StatusBadRequest, "Request has not been accepted")
}
defer f.Close()
//ヘッダ情報からの形式取得
var imgf string
ct := h.Header["Content-Type"][0]
switch ct {
case JpegCT:
imgf = "jpeg"
case GifCT:
imgf = "gif"
case PngCT:
imgf = "png"
default:
return kocha.RenderError(c, http.StatusBadRequest, "Image format must be either jpeg, gif or png")
}
//画像のデコードとフォーマットバリデーション
img, fm, err := image.Decode(f)
if err != nil {
return kocha.RenderError(c, http.StatusBadRequest, "Error has occured when decoding the reqested image")
} else if fm != imgf {
return kocha.RenderError(c, http.StatusBadRequest, "The format of actual image is not the same as the header")
}
//指定のDrawerを使って描画しつつエンコード
b := new(bytes.Buffer)
switch ct {
case JpegCT:
err = encodeJPEG(&img, b, drawLGTMWithRGBA)
case GifCT:
err = encodeGIF(&f, b, drawLGTMWithPaletted)
case PngCT:
err = encodePNG(&img, b, drawLGTMWithRGBA)
}
if err != nil {
return kocha.RenderError(c, http.StatusBadRequest, "Error has occured when encoding the requested image")
} else if b.Len() > MaxBytes {
return kocha.RenderError(c, http.StatusBadRequest, "Actual size of requested image is too large")
}
// 配置用のパス決めてS3に配置
p := uuid.New() //ver4
if err = aws.LgtmBucket.Put(p, b.Bytes(), ct, s3.PublicRead); err != nil {
return kocha.RenderError(c, http.StatusInternalServerError, "An error has occured when uploading image: "+p)
}
// TODO DBにIDを保存
return kocha.Render(c, kocha.Data{"imagePath": p})
}
func (ro *Root) GET(c *kocha.Context) kocha.Result {
return kocha.Render(c)
}