func ImageFilter(ctx *context.Context) {
token := path.Base(ctx.Request.RequestURI)
// 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 {
beego.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)
ctx.Output.ContentType(ext)
ctx.Output.Header(setting.ImageXSendHeader, "/"+filePath)
ctx.Output.SetStatus(200)
} else {
// direct serve file use go
http.ServeFile(ctx.ResponseWriter, ctx.Request, filePath)
}
}
