x509_get_info.py

#FUNCTION x509_get_info(pem character varying)

# old
  from gnutls.crypto import X509Certificate
  x=X509Certificate(pem.replace('\r ', '\r\n'))
  subj = dict([f.split('=') for f in x.subject.split(',')])
  from datetime import datetime
  return subj['CN'], datetime.fromtimestamp(x.expiration_time)

#new
    import OpenSSL
    oc = OpenSSL.crypto.load_certificate(OpenSSL.crypto.FILETYPE_PEM, pem)
    from datetime import datetime
    return oc.get_subject().commonName, datetime.strptime(oc.get_notAfter(), '%Y%m%d%H%M%SZ')