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test: create fake TUF test root and create test SETs for verification (…
…sigstore#1750) * wip Signed-off-by: Asra Ali <asraa@google.com> add fake SET test Signed-off-by: Asra Ali <asraa@google.com> fix Signed-off-by: Asra Ali <asraa@google.com> fix test Signed-off-by: Asra Ali <asraa@google.com> fix Signed-off-by: Asra Ali <asraa@google.com> * address haydentherapper comments Signed-off-by: Asra Ali <asraa@google.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,126 @@ | ||
| // | ||
| // Copyright 2021 The Sigstore 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 tuf | ||
|
|
||
| import ( | ||
| "context" | ||
| "crypto/x509" | ||
| "encoding/json" | ||
| "io/ioutil" | ||
| "net/http" | ||
| "net/http/httptest" | ||
| "os" | ||
| "path/filepath" | ||
| "testing" | ||
|
|
||
| "github.com/sigstore/sigstore/pkg/cryptoutils" | ||
| "github.com/sigstore/sigstore/pkg/signature" | ||
| "github.com/sigstore/sigstore/pkg/signature/options" | ||
| "github.com/theupdateframework/go-tuf" | ||
| ) | ||
|
|
||
| type TestSigstoreRoot struct { | ||
| Rekor signature.Verifier | ||
| FulcioCertificate *x509.Certificate | ||
| // TODO: Include a CTFE key if/when cosign verifies SCT. | ||
| } | ||
|
|
||
| // This creates a new sigstore TUF repo whose signers can be used to create dynamic | ||
| // signed Rekor entries. | ||
| func NewSigstoreTufRepo(t *testing.T, root TestSigstoreRoot) (tuf.LocalStore, *tuf.Repo) { | ||
| td := t.TempDir() | ||
| ctx := context.Background() | ||
| remote := tuf.FileSystemStore(td, nil) | ||
| r, err := tuf.NewRepo(remote) | ||
| if err != nil { | ||
| t.Error(err) | ||
| } | ||
| if err := r.Init(false); err != nil { | ||
| t.Error(err) | ||
| } | ||
|
|
||
| for _, role := range []string{"root", "targets", "snapshot", "timestamp"} { | ||
| if _, err := r.GenKey(role); err != nil { | ||
| t.Error(err) | ||
| } | ||
| } | ||
| targetsPath := filepath.Join(td, "staged", "targets") | ||
| if err := os.MkdirAll(filepath.Dir(targetsPath), 0755); err != nil { | ||
| t.Error(err) | ||
| } | ||
| // Add the rekor key target | ||
| pk, err := root.Rekor.PublicKey(options.WithContext(ctx)) | ||
| if err != nil { | ||
| t.Error(err) | ||
| } | ||
| b, err := x509.MarshalPKIXPublicKey(pk) | ||
| if err != nil { | ||
| t.Error(err) | ||
| } | ||
| rekorPath := "rekor.pub" | ||
| rekorData := cryptoutils.PEMEncode(cryptoutils.PublicKeyPEMType, b) | ||
| if err := ioutil.WriteFile(filepath.Join(targetsPath, rekorPath), rekorData, 0600); err != nil { | ||
| t.Error(err) | ||
| } | ||
| scmRekor, err := json.Marshal(&sigstoreCustomMetadata{Sigstore: customMetadata{Usage: Rekor, Status: Active}}) | ||
| if err != nil { | ||
| t.Error(err) | ||
| } | ||
| if err := r.AddTarget("rekor.pub", scmRekor); err != nil { | ||
| t.Error(err) | ||
| } | ||
| // Add Fulcio Certificate information. | ||
| fulcioPath := "fulcio.crt.pem" | ||
| fulcioData := cryptoutils.PEMEncode(cryptoutils.CertificatePEMType, root.FulcioCertificate.Raw) | ||
| if err := ioutil.WriteFile(filepath.Join(targetsPath, fulcioPath), fulcioData, 0600); err != nil { | ||
| t.Error(err) | ||
| } | ||
| scmFulcio, err := json.Marshal(&sigstoreCustomMetadata{Sigstore: customMetadata{Usage: Fulcio, Status: Active}}) | ||
| if err != nil { | ||
| t.Error(err) | ||
| } | ||
| if err := r.AddTarget(fulcioPath, scmFulcio); err != nil { | ||
| t.Error(err) | ||
| } | ||
| if err := r.Snapshot(); err != nil { | ||
| t.Error(err) | ||
| } | ||
| if err := r.Timestamp(); err != nil { | ||
| t.Error(err) | ||
| } | ||
| if err := r.Commit(); err != nil { | ||
| t.Error(err) | ||
| } | ||
| // Serve remote repository. | ||
| s := httptest.NewServer(http.FileServer(http.Dir(filepath.Join(td, "repository")))) | ||
| defer s.Close() | ||
|
|
||
| // Initialize with custom root. | ||
| tufRoot := t.TempDir() | ||
| t.Setenv("TUF_ROOT", tufRoot) | ||
| meta, err := remote.GetMeta() | ||
| if err != nil { | ||
| t.Error(err) | ||
| } | ||
| rootBytes, ok := meta["root.json"] | ||
| if !ok { | ||
| t.Error(err) | ||
| } | ||
| if err := Initialize(ctx, s.URL, rootBytes); err != nil { | ||
| t.Error(err) | ||
| } | ||
| return remote, r | ||
| } |
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