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config: sign Azure versions on upload & verify on fetch (#1836)

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* add SignContent() + integrate into configAPI

* use static client for upload versions tool; fix staticupload calleeReference bug

* use version to get proper cosign pub key.

* mock fetcher in CLI tests

* only provide config.New constructor with fetcher

Co-authored-by: Otto Bittner <cobittner@posteo.net>
Co-authored-by: Daniel Weiße <66256922+daniel-weisse@users.noreply.github.com>
This commit is contained in:
Adrian Stobbe 2023-06-01 13:55:46 +02:00 • committed by GitHub
parent e0285c122e
commit b51cc52945
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
55 changed files with 752 additions and 308 deletions
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72
internal/api/fetcher/configapi_test.go
View file

@ -15,27 +15,66 @@ import (
"testing"
"github.com/edgelesssys/constellation/v2/internal/api/configapi"
"github.com/edgelesssys/constellation/v2/internal/api/versionsapi"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestGetVersion(t *testing.T) {
client := &http.Client{
Transport: &fakeConfigAPIHandler{},
}
fetcher := NewConfigAPIFetcherWithClient(client)
res, err := fetcher.FetchLatestAzureSEVSNPVersion(context.Background())
require.NoError(t, err)
assert.Equal(t, uint8(2), res.Bootloader)
var testCfg = configapi.AzureSEVSNPVersion{
Microcode: 93,
TEE: 0,
SNP: 6,
Bootloader: 2,
}
type fakeConfigAPIHandler struct{}
func TestFetchLatestAzureSEVSNPVersion(t *testing.T) {
testcases := map[string]struct {
signature []byte
wantErr bool
want configapi.AzureSEVSNPVersion
}{
"get version with valid signature": {
signature: []byte("MEUCIQDNn6wiSh9Nz9mtU9RvxvfkH3fNDFGeqopjTIRoBNkyrAIgSsKgdYNQXvPevaLWmmpnj/9WcgrltAQ+KfI+bQfklAo="),
want: testCfg,
},
"fail with invalid signature": {
signature: []byte("invalid"),
wantErr: true,
},
}
for name, tc := range testcases {
t.Run(name, func(t *testing.T) {
client := &http.Client{
Transport: &fakeConfigAPIHandler{
signature: tc.signature,
},
}
require := require.New(t)
version, err := versionsapi.NewVersionFromShortPath("stream/debug/v9.9.9", versionsapi.VersionKindImage)
require.NoError(err)
fetcher := NewConfigAPIFetcherWithClient(client)
assert := assert.New(t)
res, err := fetcher.FetchLatestAzureSEVSNPVersion(context.Background(), version)
if tc.wantErr {
assert.Error(err)
} else {
assert.NoError(err)
assert.Equal(testCfg, res)
}
})
}
}
type fakeConfigAPIHandler struct {
signature []byte
}
// RoundTrip resolves the request and returns a dummy response.
func (f *fakeConfigAPIHandler) RoundTrip(req *http.Request) (*http.Response, error) {
if req.URL.Path == "/constellation/v1/attestation/azure-sev-snp/list" {
res := &http.Response{}
data := []string{"2021-01-01-01-01.json"}
data := []string{"2021-01-01-01-01.json", "2019-01-01-01-02.json"} // return multiple versions to check that latest version is correctly selected
bt, err := json.Marshal(data)
if err != nil {
return nil, err
@ -47,12 +86,7 @@ func (f *fakeConfigAPIHandler) RoundTrip(req *http.Request) (*http.Response, err
return res, nil
} else if req.URL.Path == "/constellation/v1/attestation/azure-sev-snp/2021-01-01-01-01.json" {
res := &http.Response{}
bt, err := json.Marshal(configapi.AzureSEVSNPVersion{
Microcode: 93,
TEE: 0,
SNP: 6,
Bootloader: 2,
})
bt, err := json.Marshal(testCfg)
if err != nil {
return nil, err
}
@ -60,6 +94,12 @@ func (f *fakeConfigAPIHandler) RoundTrip(req *http.Request) (*http.Response, err
res.StatusCode = http.StatusOK
return res, nil
} else if req.URL.Path == "/constellation/v1/attestation/azure-sev-snp/2021-01-01-01-01.json.sig" {
res := &http.Response{}
res.Body = io.NopCloser(bytes.NewReader(f.signature))
res.StatusCode = http.StatusOK
return res, nil
}
return nil, errors.New("no endpoint found")
}