Uses RestClient to make request to secured domain

make_request.rb

#...
def make_request(url, secure = false)
  url = url(url) # Make Addressable

  opts = secure ? { verify_ssl: OpenSSL::SSL::VERIFY_PEER } : {}
  opts.merge!(content_type: @config[:content_type], user_agent: @config[:agent])

  cert = @config[:cert_path] || ''
  pass = @config[:cert_password] || ''

  if File.exist?(cert) and url.host and url.path

    file = IO.read(cert)
    suffix = File.extname(cert)

    case suffix
    when '.pem'
      opts.merge!(
        ssl_client_cert: OpenSSL::X509::Certificate.new(file),
        ssl_client_key: OpenSSL::PKey::RSA.new(file, pass),
        ssl_ca_file: '/etc/pki/tls/cacert.pem'
      )
    when '.p12'
      cert = OpenSSL::PKCS12.new(file, pass)
      opts.merge!(
        ssl_client_cert: cert.certificate,
        ssl_client_key: cert.key
      )
    end

    RestClient.proxy = secure ? @config[:https_proxy] : @config[:http_proxy]
    RestClient::Resource.new("#{url}", opts).get
  end
end

def get_data(url, callback = nil)
  secure = url.scheme == 'https' ? true : false
  data = make_request(url, secure)
  data = callback.call(data) if callback.is_a? Proc
  data
end
#...