public DropzoneAttachmentController(IDropzoneAttachmentSecurityCheck attachmentSecurityCheck)
        {
            _attachmentSecurityCheck = attachmentSecurityCheck;

            _tempFilesRoot = ConfigurationManager.AppSettings["TempFilesRoot"];
            _tempFilesRoot = Path.IsPathRooted(_tempFilesRoot) ? _tempFilesRoot : Server.MapPath(_tempFilesRoot);
        }
 public DropzoneAttachmentController(IDropzoneAttachmentSecurityCheck attachmentSecurityCheck)
 {
     _attachmentSecurityCheck = attachmentSecurityCheck;
     _tempFilesRoot           = ConfigurationManager.AppSettings["TempFilesRoot"] ?? "~/App_Data";
 }