http_requests.rb

module SomeLib

  module Utilities

    module HttpRequest

      #send get request to sensor
      def send_get_request(url = nil)
        send_data url
      end

      #send post request to sensor
      def send_post_request(url = nil, body = nil)
        send_data url, :post, body
      end

      private

        # send get/post data to device
        def send_data(url, method_to_send = :get, body = nil)
          uri = URI.parse(url)
          http = Net::HTTP.new(uri.host, uri.port)
          http.use_ssl = true
          http.verify_mode = OpenSSL::SSL::VERIFY_NONE
          http.ssl_version = 'SSLv3' #TLSv1 depending on the update version of the device
                    
          request = Net::HTTP::Get.new(uri.request_uri)
          request.basic_auth("user", "pass")
          request.body = body if method_to_send == :post
          set_headers request
          http.request(request)
        end

        # Build Headers hash
        def set_headers(request)
          headers = {
            'User-Agent' => 'Some Agent',
            'Accept' => 'text/xml',
            'Content-type' => 'text/xml',
            'Connection' => 'keepalive',
            'Accept-Charset' => 'utf-8',
            'Pragma' => 'no-cache',
            'Cache-Control' => 'no-cache'
          }
          headers.each { |k, v| request.add_field("#{k}", "#{v}") }
        end        
    end

  end

end