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sign_test.go
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sign_test.go
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//go:build e2e
// +build e2e
/*
Copyright 2022 The Kubernetes 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 e2e
import (
"fmt"
"io"
"net/http"
"os"
"strings"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"sigs.k8s.io/release-sdk/sign"
)
const (
ociManifestType = "application/vnd.oci.image.manifest.v1+json"
registry = "localhost:5000"
imageName = "test"
registryWithImage = registry + "/" + imageName
imageRef = registryWithImage + ":latest"
)
func TestSignImageSuccess(t *testing.T) {
signer := testSigner(t)
signed, err := signer.IsImageSigned(imageRef)
require.NoError(t, err)
require.False(t, signed)
// Sign the image
res, err := signer.SignImage(imageRef)
// Verify the results
require.NoError(t, err)
assert.Nil(t, res.File())
image := res.Image()
assert.NotNil(t, image)
assert.Equal(t, imageRef, image.Reference())
assert.Regexp(t, `sha256:[[:xdigit:]]{64}`, image.Digest())
assert.Regexp(t, registryWithImage+`:sha256-[[:xdigit:]]{64}\.sig`, image.Signature())
url := fmt.Sprintf(
"http://%s/v2/%s/manifests/%s",
registry,
imageName,
strings.Replace(image.Signature(), registryWithImage+":", "", 1),
)
fmt.Printf(": %s\n", url)
client := &http.Client{}
req, err := http.NewRequest("GET", url, http.NoBody)
require.NoError(t, err)
req.Header.Set("Accept", ociManifestType)
resp, err := client.Do(req)
require.NoError(t, err)
defer resp.Body.Close()
body, err := io.ReadAll(resp.Body)
require.NoError(t, err)
response := string(body)
assert.Contains(t, response, "-----BEGIN CERTIFICATE-----")
assert.Contains(t, response, "-----END CERTIFICATE-----")
assert.Contains(t, response, fmt.Sprintf(`"mediaType":"%s"`, ociManifestType))
signed, err = signer.IsImageSigned(imageRef)
require.NoError(t, err)
assert.True(t, signed)
obj, err := signer.VerifyImage(imageRef)
require.NoError(t, err)
assert.Equal(t, res, obj)
}
func TestSignImageFailureWrongImageRef(t *testing.T) {
// Test the prerequisites
signer := sign.New(nil)
_, err := signer.SignImage(registry + "/not-existing:latest")
assert.ErrorContains(t, err, "entity not found in registry")
}
func TestSignFileSuccess(t *testing.T) {
signer := testSigner(t)
// propagated by the github actions workflow
testFilePath := os.Getenv("INPUT_PATH")
require.NotEmpty(t, testFilePath)
signedObject, err := signer.SignFile(testFilePath)
require.NoError(t, err)
require.NotNil(t, signedObject.File)
verifiedObject, err := signer.VerifyFile(testFilePath, true)
require.NoError(t, err)
require.NotNil(t, verifiedObject.File)
}
func TestSignFileFailureWrongFilePath(t *testing.T) {
signer := sign.New(nil)
_, err := signer.SignFile("/dummy/test")
assert.ErrorContains(t, err, "file retrieve sha256:")
}
func testSigner(t *testing.T) *sign.Signer {
t.Helper()
opts := sign.Default()
opts.IgnoreTlog = true
opts.CertIdentityRegexp = "https://github.com/kubernetes-sigs/release-sdk/.github/workflows/e2e.yml@.*"
opts.CertOidcIssuer = "https://token.actions.githubusercontent.com"
signer := sign.New(opts)
return signer
}