module Puppet::Network::Authentication

# File lib/puppet/network/authentication.rb, line 12
def warn_if_near_expiration(*certs)
  # Check CA cert if we're functioning as a CA
  certs << Puppet::SSL::CertificateAuthority.instance.host.certificate if Puppet::SSL::CertificateAuthority.ca?

  # Always check the host cert if we have one, this will be the agent or master cert depending on the run mode
  certs << Puppet::SSL::Host.localhost.certificate if FileTest.exist?(Puppet[:hostcert])

  # Remove nil values for caller convenience
  certs.compact.each do |cert|
    # Allow raw OpenSSL certificate instances or Puppet certificate wrappers to be specified
    cert = Puppet::SSL::Certificate.from_instance(cert) if cert.is_a?(OpenSSL::X509::Certificate)
    raise ArgumentError, "Invalid certificate '#{cert.inspect}'" unless cert.is_a?(Puppet::SSL::Certificate)

    if cert.near_expiration?
      @@logger.warning("Certificate '#{cert.unmunged_name}' will expire on #{cert.expiration.strftime('%Y-%m-%dT%H:%M:%S%Z')}")
    end
  end
end