check_chain

# File lib/rubygems/security/policy.rb, line 57
  def check_chain chain, time
    raise Gem::Security::Exception, 'missing signing chain' unless chain
    raise Gem::Security::Exception, 'empty signing chain' if chain.empty?

    begin
      chain.each_cons 2 do |issuer, cert|
        check_cert cert, issuer, time
      end

      true
    rescue Gem::Security::Exception => e
      raise Gem::Security::Exception, "invalid signing chain: #{e.message}"
    end
  end