func QiniuImageFilter(ctx *context.Context) {
var imageName = path.Base(ctx.Request.RequestURI)
var imageKey string
var imageSize string
if i := strings.IndexRune(imageName, '.'); i == -1 {
return
} else {
imageSize = imageName[i+1:]
if j := strings.IndexRune(imageSize, '.'); j == -1 {
imageSize = "full"
} else {
imageSize = imageSize[:j]
}
imageKey = imageName[:i]
}
var image = models.Image{
Token: imageKey,
}
err := image.Read("Token")
if err != nil {
return
}
var imageWidth = image.Width
var imageHeight = image.Height
var zoomRatio = setting.ImageSizeMiddle / imageWidth
if imageWidth > setting.ImageSizeMiddle {
imageWidth = setting.ImageSizeMiddle
}
imageHeight *= zoomRatio
var imageUrl = utils.GetQiniuPublicDownloadUrl(setting.QiniuPostDomain, imageKey)
var zoomImageUrl = utils.GetQiniuZoomViewUrl(imageUrl, imageWidth, imageHeight)
resp, err := http.Get(zoomImageUrl)
if err != nil {
return
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return
}
ctx.ResponseWriter.Write(body)
}
