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util_test.go
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util_test.go
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/*
Copyright 2020 The cert-manager Authors.
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.
*/
package requestmanager
import (
"crypto"
"crypto/x509"
"encoding/pem"
"testing"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
apiutil "github.com/cert-manager/cert-manager/pkg/api/util"
cmapi "github.com/cert-manager/cert-manager/pkg/apis/certmanager/v1"
cmmeta "github.com/cert-manager/cert-manager/pkg/apis/meta/v1"
"github.com/cert-manager/cert-manager/pkg/util/pki"
"github.com/cert-manager/cert-manager/test/unit/gen"
)
type cryptoBundle struct {
// certificate is the Certificate resource used to create this bundle
certificate *cmapi.Certificate
// expectedRequestName is the name of the CertificateRequest that is
// expected to be created to issue this certificate
expectedRequestName string
// privateKey is the private key used as the complement to the certificates
// in this bundle
privateKey crypto.Signer
privateKeyBytes []byte
// csr is the CSR used to obtain the certificate in this bundle
csr *x509.CertificateRequest
csrBytes []byte
// certificateRequest is the request that is expected to be created to
// obtain a certificate when using this bundle
certificateRequest *cmapi.CertificateRequest
certificateRequestReady *cmapi.CertificateRequest
certificateRequestFailed *cmapi.CertificateRequest
certificateRequestFailedInvalidRequest *cmapi.CertificateRequest
// cert is a signed certificate
cert *x509.Certificate
certBytes []byte
}
func mustCreateCryptoBundle(t *testing.T, crt *cmapi.Certificate) cryptoBundle {
c, err := createCryptoBundle(crt)
if err != nil {
t.Fatalf("error generating crypto bundle: %v", err)
}
return *c
}
func createCryptoBundle(originalCert *cmapi.Certificate) (*cryptoBundle, error) {
crt := originalCert.DeepCopy()
if crt.Spec.PrivateKey == nil {
crt.Spec.PrivateKey = &cmapi.CertificatePrivateKey{}
}
reqName, err := apiutil.ComputeName(crt.Name, crt.Spec)
if err != nil {
return nil, err
}
privateKey, err := pki.GeneratePrivateKeyForCertificate(crt)
if err != nil {
return nil, err
}
privateKeyBytes, err := pki.EncodePrivateKey(privateKey, crt.Spec.PrivateKey.Encoding)
if err != nil {
return nil, err
}
csrPEM, err := generateCSRImpl(crt, privateKeyBytes)
if err != nil {
return nil, err
}
csr, err := pki.DecodeX509CertificateRequestBytes(csrPEM)
if err != nil {
return nil, err
}
annotations := make(map[string]string)
for k, v := range crt.Annotations {
annotations[k] = v
}
annotations[cmapi.CertificateRequestRevisionAnnotationKey] = "NOT SET"
annotations[cmapi.CertificateRequestPrivateKeyAnnotationKey] = crt.Spec.SecretName
annotations[cmapi.CertificateNameKey] = crt.Name
if crt.Status.NextPrivateKeySecretName != nil {
annotations[cmapi.CertificateRequestPrivateKeyAnnotationKey] = *crt.Status.NextPrivateKeySecretName
}
certificateRequest := &cmapi.CertificateRequest{
ObjectMeta: metav1.ObjectMeta{
Name: "NOT SET",
Namespace: crt.Namespace,
OwnerReferences: []metav1.OwnerReference{*metav1.NewControllerRef(crt, certificateGvk)},
Annotations: annotations,
},
Spec: cmapi.CertificateRequestSpec{
Request: csrPEM,
Duration: crt.Spec.Duration,
IssuerRef: crt.Spec.IssuerRef,
IsCA: crt.Spec.IsCA,
},
}
unsignedCert, err := pki.CertificateTemplateFromCertificateRequest(certificateRequest)
if err != nil {
return nil, err
}
certBytes, cert, err := pki.SignCertificate(unsignedCert, unsignedCert, privateKey.Public(), privateKey)
if err != nil {
return nil, err
}
certificateRequestReady := gen.CertificateRequestFrom(certificateRequest,
gen.SetCertificateRequestCertificate(certBytes),
gen.SetCertificateRequestStatusCondition(cmapi.CertificateRequestCondition{
Type: cmapi.CertificateRequestConditionReady,
Status: cmmeta.ConditionTrue,
Reason: cmapi.CertificateRequestReasonIssued,
}),
)
certificateRequestFailed := gen.CertificateRequestFrom(certificateRequest,
gen.SetCertificateRequestStatusCondition(cmapi.CertificateRequestCondition{
Type: cmapi.CertificateRequestConditionReady,
Status: cmmeta.ConditionFalse,
Reason: cmapi.CertificateRequestReasonFailed,
}),
)
certificateRequestFailedInvalidRequest := gen.CertificateRequestFrom(certificateRequestFailed,
gen.SetCertificateRequestStatusCondition(cmapi.CertificateRequestCondition{
Type: cmapi.CertificateRequestConditionInvalidRequest,
Status: cmmeta.ConditionTrue,
Reason: cmapi.CertificateRequestReasonFailed,
}),
)
return &cryptoBundle{
certificate: originalCert,
expectedRequestName: reqName,
privateKey: privateKey,
privateKeyBytes: privateKeyBytes,
csr: csr,
csrBytes: csrPEM,
certificateRequest: certificateRequest,
certificateRequestReady: certificateRequestReady,
certificateRequestFailed: certificateRequestFailed,
certificateRequestFailedInvalidRequest: certificateRequestFailedInvalidRequest,
cert: cert,
certBytes: certBytes,
}, nil
}
func generateCSRImpl(crt *cmapi.Certificate, pk []byte) ([]byte, error) {
csr, err := pki.GenerateCSR(crt)
if err != nil {
return nil, err
}
signer, err := pki.DecodePrivateKeyBytes(pk)
if err != nil {
return nil, err
}
csrDER, err := pki.EncodeCSR(csr, signer)
if err != nil {
return nil, err
}
csrPEM := pem.EncodeToMemory(&pem.Block{
Type: "CERTIFICATE REQUEST", Bytes: csrDER,
})
return csrPEM, nil
}