func ImageHandler(ctx wombat.Context, a *articles.Article, path, filename string) {
ctx.Response.Header().Set("Content-Type", "application/json")
// Save the image
img, err := web.SaveImage(ctx.Request, ctx.Response, path, filename)
if err != nil {
ctx.HttpError(http.StatusInternalServerError, GetError(ctx.Request, err))
return
}
s := img.Bounds().Size()
exists := false
// Add or Update the image
for _, v := range a.Imgs {
if v.Src == filename {
v.W, v.H = s.X, s.Y
exists = true
}
}
if !exists {
a.Imgs = append(a.Imgs, articles.Img{filename, "", s.X, s.Y})
}
// Update the article's images
if err = a.SetImgs(a.Imgs); err != nil {
log.Println("Failed to persit new image: ", filename, " for article: ", a.TitlePath)
ctx.HttpError(http.StatusInternalServerError, GetError(ctx.Request, err))
} else {
j := fmt.Sprintf(`{"image":"%s", "w":%d,"h":%d}`, filename, s.X, s.Y)
ctx.Response.Write([]byte(j))
}
}
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))
}
}
func JSONHandler(ctx wombat.Context, a *articles.Article, imagePath string, data []byte) {
// Get the JSONMessage from the request
var msg JSONMessage
err := json.Unmarshal(data, &msg)
if err != nil {
ctx.HttpError(http.StatusBadRequest, GetError(ctx.Request, err))
return
}
// Perform the given action
switch msg.Action {
default:
// Invalid/missing action
err = errors.New("Invalid Action")
case "setSynopsis":
err = a.SetSynopsis(msg.Data)
case "setContent":
err = a.SetContent(msg.Data)
case "setActive":
// Toggle
err = a.Publish(!a.IsPublished)
case "deleteImage":
err = RemoveImage(a, msg.Data, imagePath)
}
// Report if the action resulted in an error
if err != nil {
ctx.HttpError(http.StatusInternalServerError, GetError(ctx.Request, err))
}
}
func RemoveImage(a *articles.Article, src, imagePath string) (err error) {
// New slice, minus the `src` image
imgs := make([]articles.Img, 0, len(a.Imgs))
//imgs := []articles.Img{}
found := false
for _, i := range a.Imgs {
if i.Src == src {
found = true
} else {
imgs = append(imgs, i)
}
}
// If the `src` image was found, remove it from the Article
if found {
// Remove the `src` image from the filesystem
if err = a.SetImgs(imgs); err == nil {
p := filepath.Join(imagePath, a.TitlePath)
os.Remove(filepath.Join(p, src))
}
}
return
}