func Image(ctx *tango.Context) {
token := ctx.Params().Get(":path")
// split token and file ext
var filePath string
if i := strings.IndexRune(token, '.'); i == -1 {
return
} else {
filePath = token[i+1:]
token = token[:i]
}
// decode token to file path
var image models.Image
if err := image.DecodeToken(token); err != nil {
log.Info(err)
return
}
// file real path
filePath = attachment.GenImagePath(&image) + filePath
// if x-send on then set header and http status
// fall back use proxy serve file
if setting.ImageXSend {
//ext := filepath.Ext(filePath)
// TODO:
//ctx.Header().ContentType(ext)
ctx.Header().Set(setting.ImageXSendHeader, "/"+filePath)
ctx.WriteHeader(http.StatusOK)
} else {
// direct serve file use go
ctx.ServeFile(filePath)
}
}
func QiniuImage(ctx *tango.Context) {
var imageName = ctx.Params().Get(":path")
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 := models.GetByExample(&image)
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)
}