public WebImagesService(
     IImagesService images,
     IMapPathAdapter serverUtilities, 
     IFileSaverAdapter fileSaver, 
     IDirectoryAdapter directory, 
     IGuidAdapter guid)
 {
     this.images = images;
     this.serverUtilities = serverUtilities;
     this.fileSaver = fileSaver;
     this.directory = directory;
     this.guid = guid;
 }
 public SimpleSecurityChallengeProvider(IDateTimeAdapter dateTimeAdapter, IGuidAdapter guidAdapter)
 {
     this.dateTimeAdapter = dateTimeAdapter;
     this.guidAdapter = guidAdapter;
 }