func ThumbHandler(ctx wombat.Context, a *articles.Article, path, filename string) {
ctx.Response.Header().Set("Content-Type", "application/json")
// Save & resize the image to a thumbnail
img, err := web.SaveImage(ctx.Request, ctx.Response, path, filename)
if err == nil {
// Resize the image and save it
if img, err = imagery.ResizeWidth(img, 200); err == nil {
err = imagery.WriteTo(web.ImageType(ctx.Request), img, path, filename)
}
}
if err != nil {
ctx.HttpError(http.StatusInternalServerError, GetError(ctx.Request, err))
return
}
oldThumb := filepath.Join(path, a.TitlePath, a.Img.Src)
s := img.Bounds().Size()
// Update the article's thumbnail
if err = a.SetImg(articles.Img{filename, filename, s.X, s.Y}); err != nil {
log.Println("Failed to persit new thumbnail: ", filename, " for article: ", a.TitlePath)
ctx.HttpError(http.StatusInternalServerError, GetError(ctx.Request, err))
} else {
os.Remove(oldThumb)
j := fmt.Sprintf(`{"thumb":"%s", "w":%d,"h":%d}`, filename, s.X, s.Y)
ctx.Response.Write([]byte(j))
}
}
