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/*
* ============LICENSE_START=======================================================
* oom-certservice-k8s-external-provider
* ================================================================================
* Copyright (C) 2020 Nokia. All rights reserved.
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ============LICENSE_END=========================================================
*/
package logger
import (
"crypto/x509"
"encoding/pem"
"net"
"net/url"
"strconv"
"github.com/go-logr/logr"
cmapi "github.com/jetstack/cert-manager/pkg/apis/certmanager/v1"
)
const (
CertServiceName = "Cert Service API"
CMPv2ServerName = "CMPv2 Server"
)
func LogCertRequestProperties(log logr.Logger, request *cmapi.CertificateRequest) {
logPropertiesOverriddenByCMPv2Server(log, request)
logPropertiesNotSupportedByCertService(log, request)
}
func logPropertiesOverriddenByCMPv2Server(log logr.Logger, request *cmapi.CertificateRequest) {
if request.Spec.Duration != nil && len(request.Spec.Duration.String()) > 0 {
log.Info(getOverriddenMessage("duration", request.Spec.Duration.Duration.String()))
}
if request.Spec.Usages != nil && len(request.Spec.Usages) > 0 {
log.Info(getOverriddenMessage("usages", extractUsages(request.Spec.Usages)))
}
}
func extractUsages(usages []cmapi.KeyUsage) string {
values := ""
for _, usage := range usages {
values = values + string(usage) + ", "
}
return values
}
func getOverriddenMessage(property string, values string) string {
return "Property '" + property + "' with value: " + values + ", will be overridden by " + CMPv2ServerName
}
func logPropertiesNotSupportedByCertService(log logr.Logger, request *cmapi.CertificateRequest) {
block, _ := pem.Decode(request.Spec.Request)
cert, err := x509.ParseCertificateRequest(block.Bytes)
if err != nil {
log.Error(err, "Cannot parse Certificate Signing Request")
}
//IP addresses in SANs
if len(cert.IPAddresses) > 0 {
log.Info(getNotSupportedMessage("ipAddresses", extractIPAddresses(cert.IPAddresses)))
}
//URIs in SANs
if len(cert.URIs) > 0 {
log.Info(getNotSupportedMessage("uris", extractURIs(cert.URIs)))
}
//Email addresses in SANs
if len(cert.EmailAddresses) > 0 {
log.Info(getNotSupportedMessage("emailAddresses", extractStringArray(cert.EmailAddresses)))
}
if request.Spec.IsCA == true {
log.Info(getNotSupportedMessage("isCA", strconv.FormatBool(request.Spec.IsCA)))
}
if len(cert.Subject.StreetAddress) > 0 {
log.Info(getNotSupportedMessage("subject.streetAddress", extractStringArray(cert.Subject.StreetAddress)))
}
if len(cert.Subject.PostalCode) > 0 {
log.Info(getNotSupportedMessage("subject.postalCodes", extractStringArray(cert.Subject.PostalCode)))
}
if len(cert.Subject.SerialNumber) > 0 {
log.Info(getNotSupportedMessage("subject.serialNumber", cert.Subject.SerialNumber))
}
}
func extractStringArray(strArray []string) string {
values := ""
for _, emailSANs := range strArray {
values = values + emailSANs + ", "
}
return values
}
func extractURIs(URIs []*url.URL) string {
values := ""
for _, uri := range URIs {
values = values + uri.String() + ", "
}
return values
}
func extractIPAddresses(addresses []net.IP) string {
values := ""
for _, ipAddress := range addresses {
values = values + ipAddress.String() + ", "
}
return values
}
func getNotSupportedMessage(property string, values string) string {
return "WARNING: Property '" + property + "' with value: " + values + " is not supported by " + CertServiceName
}
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