class Params

  attr_reader :data, :content_type, :boundary

  def initialize(params)
    @data = ''
    @content_type = 'application/x-www-form-urlencoded'
    @boundary = MD5.md5('duckies').to_s
    parse(params)
  end

  def parse(params)
    @data = params.collect { |k, v|
			k = k.to_s
			if v.respond_to?(:read)
				q = file_to_multipart(k, v.path, v.read)
				v.close
			else
				q = to_multipart(k, v)
			end
			"--" + @boundary + "\r\n" + q
		}.join("") + '--' + @boundary + "--"
		@content_type = "multipart/form-data, boundary=" + @boundary + " "
  end

  protected

  # These methods don't use CGI::escape intentionally

  def to_multipart(name, value)
		return "Content-Disposition: form-data; name=\"#{name}\"\r\n\r\n#{value}\r\n"
	end

	# only does JPEGS!
	def file_to_multipart(name, file, content)
		return "Content-Disposition: form-data; name=\"#{name}\"; filename=\"#{file}\"\r\n" +
			  "Content-Transfer-Encoding: binary\r\n" +
			  "Content-Type: image/jpeg\r\n\r\n" + content + "\r\n"
	end

end