Rake task to generate a self signed ssl certificate for development

create_ssl

desc "Create a self signed SSL certificate for Development"
task :create_ssl do
  directory = '.ssl'
  certificate_name = 'localhost'
  ssl_utility = 'openssl'
  application = system "#{ssl_utility} version"

  # Check if openssl exists
  if application.nil?
    puts "#{ssl_utility} doesn't exist"
  elsif application

    # Create .ssl folder if it doesn't exist
    Dir.mkdir( directory ) unless File.exists?( directory )
    
    extensions = ['.key', '.csr', '.crt']
    # remove previous .key, .csr, and .crt
    extensions.each do |ext|
      path = "#{directory}/#{certificate_name}#{ext}"
      File.delete( path ) if File.exist?( path )
    end

    key = "#{directory}/#{certificate_name}#{extensions[0]}"
    puts "\nGenerating key \t (#{key})\n"
    system "openssl genrsa -out #{key} 1024"

    csr = "#{directory}/#{certificate_name}#{extensions[1]}"
    puts "\nGenerating csr \t (#{csr})\n"
    system "openssl req -new -key #{key} -out #{csr}"
    
    crt = "#{directory}/#{certificate_name}#{extensions[2]}"
    puts "\nGenerating crt \t (#{crt})\n"
    system "openssl x509 -req -days 1024 -in #{csr} -signkey #{key} -out #{crt}"
  end
end