def process_options(options, client_id, csr=None):
    """
    Processes and maps the incoming issuer options to fields/options that
    Entrust understands

    :param options:
    :param csr:
    :return: dict of valid entrust options
    """
    # if there is a config variable ENTRUST_PRODUCT_<upper(authority.name)>
    # take the value as Cert product-type
    # else default to "STANDARD_SSL"
    authority = options.get("authority").name.upper()
    # STANDARD_SSL (cn=domain, san=www.domain),
    # ADVANTAGE_SSL (cn=domain, san=[www.domain, one_more_option]),
    # WILDCARD_SSL (unlimited sans, and wildcard)
    product_type = current_app.config.get(f"ENTRUST_PRODUCT_{authority}", "STANDARD_SSL")

    if options.get("validity_end"):
        validity_end = determine_end_date(options.get("validity_end"))
    else:
        validity_end = determine_end_date(False)

    tracking_data = {
        "requesterName": current_app.config.get("ENTRUST_NAME"),
        "requesterEmail": current_app.config.get("ENTRUST_EMAIL"),
        "requesterPhone": current_app.config.get("ENTRUST_PHONE")
    }
    eku = "SERVER_AND_CLIENT_AUTH"
    if current_app.config.get("ENTRUST_INFER_EKU", False) and csr:
        ekus = get_ekus(csr)
        client_auth = any(usage._name == 'clientAuth' for usage in ekus.value)
        server_auth = any(usage._name == 'serverAuth' for usage in ekus.value)

        if client_auth and not server_auth:
            eku = "CLIENT_AUTH"
        elif server_auth and not client_auth:
            eku = "SERVER_AUTH"

    data = {
        "signingAlg": "SHA-2",
        "certType": product_type,
        "certExpiryDate": validity_end,
        "tracking": tracking_data,
        "org": options.get("organization"),
        "clientId": client_id,
        "eku": eku,
    }
    return data

    Processes and maps the incoming issuer options to fields/options that
    Entrust understands

    :param options:
    :param csr:
    :return: dict of valid entrust options
    
lemur/plugins/lemur_entrust/plugin.py