Grab SSL Subject Helper

ssl_helper.rb

require 'socket'
require 'openssl'

module SSLHelpers
  class Client
    def initialize(host, port)
      @host = host
      @port = port
    end

    def connect
      @ssl_context = OpenSSL::SSL::SSLContext.new
      @ssl_context.verify_mode = OpenSSL::SSL::VERIFY_NONE
      @tcp_client = TCPSocket.new(@host, @port)
      @ssl_client = OpenSSL::SSL::SSLSocket.new @tcp_client, @ssl_context
      @ssl_client.connect
    end

    def get_cert
      @ssl_client.peer_cert
    end

    def get_cert_subject
      get_cert.subject.to_s
    end
  end
end

# Example Usage
client = SSLHelpers::Client.new("www.google.com", 443)
client.connect
puts client.get_cert_subject