def get_options
    @error = 0
    @options = {}
    @options[:url] = "/#{Fckeditor.config[:upload_dir]}/#{params[:Type]}/#{params[:CurrentFolder]}".gsub(/\/+/, '/')
    @options[:dir] = File.join('public', @options[:url])
    @options[:dir] = @options[:url] if Dir.pwd.ends_with?('/public')
  end
  
  def sanitize_directory
    if params[:CurrentFolder]
      clean = File.expand_path(File.join(RAILS_ROOT, 'public', Fckeditor.config[:upload_dir]))
      dirty = File.expand_path(@options[:dir])
      unless dirty.starts_with?(clean)
        render :nothing => true, :status => 403
        false
      end
    end
  end