/// <summary>
 /// Lists directory, or writes file contents in the HTTP response as per the
 /// the response received from the DEA. If the "tail" parameter is part of
 /// the HTTP request, then the file contents are streamed through chunked
 /// HTTP transfer encoding. Otherwise, the entire file is dumped in the HTTP
 /// response.
 /// Writes appropriate errors and status codes in the HTTP response if there is
 /// a problem in reading the file or directory.
 /// </summary>
 /// <param name="path">The path.</param>
 /// <param name="tail">if set to <c>true</c> it means we tail the file live.</param>
 /// <param name="context">Http context to respond to.</param>
 private void ListPath(string path, bool tail, HttpListenerContext context)
 {
     if (File.Exists(path))
     {
         this.WriteFile(path, tail, context);
     }
     else if (Directory.Exists(path))
     {
         DirectoryServer.ListDir(path, context);
     }
     else
     {
         Logger.Warning(Strings.PathNotFound, path);
         DirectoryServer.WriteEntityNotFound(context);
     }
 }