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Allow inverted key/cert order in combined PEM file

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certificate.FileStore only handles (cert, key) combined PEM files. This
PR allows (key, cert), which is what "openssl req -out foo.pem -keyout
foo.pem" generates.

Kubernetes-commit: 4b6a6a1cd5c8df83b3c51a03ecab975b82057489
This commit is contained in:
Andrew Lytvynov
2018-10-08 11:37:36 -07:00
committed by Kubernetes Publisher
parent 672cf70624
commit 40fb7ab6be
2 changed files with 26 additions and 127 deletions
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128
util/certificate/certificate_store_test.go
View File

@@ -17,12 +17,11 @@ limitations under the License.
package certificate
import (
"bytes"
"io/ioutil"
"os"
"path/filepath"
"testing"
"k8s.io/client-go/util/cert"
)
func TestUpdateSymlinkExistingFileError(t *testing.T) {
@@ -178,96 +177,6 @@ func TestUpdateSymlinkReplaceExistingSymlink(t *testing.T) {
}
}
func TestLoadCertKeyBlocksNoFile(t *testing.T) {
dir, err := ioutil.TempDir("", "k8s-test-load-cert-key-blocks")
if err != nil {
t.Fatalf("Unable to create the test directory %q: %v", dir, err)
}
defer func() {
if err := os.RemoveAll(dir); err != nil {
t.Errorf("Unable to clean up test directory %q: %v", dir, err)
}
}()
pairFile := filepath.Join(dir, "kubelet-pair.pem")
if _, _, err := loadCertKeyBlocks(pairFile); err == nil {
t.Errorf("Got no error, but expected %q not found.", pairFile)
}
}
func TestLoadCertKeyBlocksEmptyFile(t *testing.T) {
dir, err := ioutil.TempDir("", "k8s-test-load-cert-key-blocks")
if err != nil {
t.Fatalf("Unable to create the test directory %q: %v", dir, err)
}
defer func() {
if err := os.RemoveAll(dir); err != nil {
t.Errorf("Unable to clean up test directory %q: %v", dir, err)
}
}()
pairFile := filepath.Join(dir, "kubelet-pair.pem")
if err := ioutil.WriteFile(pairFile, nil, 0600); err != nil {
t.Fatalf("Unable to create the file %q: %v", pairFile, err)
}
if _, _, err := loadCertKeyBlocks(pairFile); err == nil {
t.Errorf("Got no error, but expected %q not found.", pairFile)
}
}
func TestLoadCertKeyBlocksPartialFile(t *testing.T) {
dir, err := ioutil.TempDir("", "k8s-test-load-cert-key-blocks")
if err != nil {
t.Fatalf("Unable to create the test directory %q: %v", dir, err)
}
defer func() {
if err := os.RemoveAll(dir); err != nil {
t.Errorf("Unable to clean up test directory %q: %v", dir, err)
}
}()
pairFile := filepath.Join(dir, "kubelet-pair.pem")
if err := ioutil.WriteFile(pairFile, storeCertData.certificatePEM, 0600); err != nil {
t.Fatalf("Unable to create the file %q: %v", pairFile, err)
}
if _, _, err := loadCertKeyBlocks(pairFile); err == nil {
t.Errorf("Got no error, but expected %q invalid.", pairFile)
}
}
func TestLoadCertKeyBlocks(t *testing.T) {
dir, err := ioutil.TempDir("", "k8s-test-load-cert-key-blocks")
if err != nil {
t.Fatalf("Unable to create the test directory %q: %v", dir, err)
}
defer func() {
if err := os.RemoveAll(dir); err != nil {
t.Errorf("Unable to clean up test directory %q: %v", dir, err)
}
}()
pairFile := filepath.Join(dir, "kubelet-pair.pem")
data := append(storeCertData.certificatePEM, []byte("\n")...)
data = append(data, storeCertData.keyPEM...)
if err := ioutil.WriteFile(pairFile, data, 0600); err != nil {
t.Fatalf("Unable to create the file %q: %v", pairFile, err)
}
certBlock, keyBlock, err := loadCertKeyBlocks(pairFile)
if err != nil {
t.Errorf("Got %v, but expected no error.", pairFile)
}
if certBlock.Type != cert.CertificateBlockType {
t.Errorf("Got %q loaded from the pair file, expected a %q.", certBlock.Type, cert.CertificateBlockType)
}
if keyBlock.Type != cert.RSAPrivateKeyBlockType {
t.Errorf("Got %q loaded from the pair file, expected a %q.", keyBlock.Type, cert.RSAPrivateKeyBlockType)
}
}
func TestLoadFile(t *testing.T) {
dir, err := ioutil.TempDir("", "k8s-test-load-cert-key-blocks")
if err != nil {
@@ -280,21 +189,30 @@ func TestLoadFile(t *testing.T) {
}()
pairFile := filepath.Join(dir, "kubelet-pair.pem")
data := append(storeCertData.certificatePEM, []byte("\n")...)
data = append(data, storeCertData.keyPEM...)
if err := ioutil.WriteFile(pairFile, data, 0600); err != nil {
t.Fatalf("Unable to create the file %q: %v", pairFile, err)
}
cert, err := loadFile(pairFile)
if err != nil {
t.Fatalf("Could not load certificate from disk: %v", err)
tests := []struct {
desc string
data []byte
}{
{desc: "cert and key", data: bytes.Join([][]byte{storeCertData.certificatePEM, storeCertData.keyPEM}, []byte("\n"))},
{desc: "key and cert", data: bytes.Join([][]byte{storeCertData.keyPEM, storeCertData.certificatePEM}, []byte("\n"))},
}
if cert == nil {
t.Fatalf("There was no error, but no certificate data was returned.")
}
if cert.Leaf == nil {
t.Fatalf("Got an empty leaf, expected private data.")
for _, tt := range tests {
t.Run(tt.desc, func(t *testing.T) {
if err := ioutil.WriteFile(pairFile, tt.data, 0600); err != nil {
t.Fatalf("Unable to create the file %q: %v", pairFile, err)
}
cert, err := loadFile(pairFile)
if err != nil {
t.Fatalf("Could not load certificate from disk: %v", err)
}
if cert == nil {
t.Fatalf("There was no error, but no certificate data was returned.")
}
if cert.Leaf == nil {
t.Fatalf("Got an empty leaf, expected private data.")
}
})
}
}