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feat(sbom): add support for scanning a sbom attestation (#2652)
Co-authored-by: knqyf263 <knqyf263@gmail.com>
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integration/testdata/fixtures/sbom/centos-7-cyclonedx.intoto.jsonl
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1 @@ | ||
| {"payloadType":"application/vnd.in-toto+json","payload":"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","signatures":[{"keyid":"","sig":"MEUCIF52Th/Uxp9iGoqyP8ioikcefayjXh/+GhKyhhdczihaAiEAwOedZ0ovOanwY+u9Dl+/bHp8398YcXA2n0zG8Q2gnb0="}]} |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,44 @@ | ||
| package attestation | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "encoding/base64" | ||
| "encoding/json" | ||
|
|
||
| "github.com/in-toto/in-toto-golang/in_toto" | ||
| "github.com/secure-systems-lab/go-securesystemslib/dsse" | ||
| "golang.org/x/xerrors" | ||
| ) | ||
|
|
||
| // CosignPredicate specifies the format of the Custom Predicate. | ||
| // Cosign uses this structure when creating an SBOM attestation. | ||
| // cf. https://github.com/sigstore/cosign/blob/e0547cff64f98585a837a524ff77ff6b47ff5609/pkg/cosign/attestation/attestation.go#L39-L43 | ||
| type CosignPredicate struct { | ||
| Data interface{} | ||
| } | ||
|
|
||
| // Statement holds in-toto statement headers and the predicate. | ||
| type Statement in_toto.Statement | ||
|
|
||
| func (s *Statement) UnmarshalJSON(b []byte) error { | ||
| var envelope dsse.Envelope | ||
| err := json.NewDecoder(bytes.NewReader(b)).Decode(&envelope) | ||
| if err != nil { | ||
| return xerrors.Errorf("failed to decode as a dsse envelope: %w", err) | ||
| } | ||
| if envelope.PayloadType != in_toto.PayloadType { | ||
| return xerrors.Errorf("invalid attestation payload type: %s", envelope.PayloadType) | ||
| } | ||
|
|
||
| decoded, err := base64.StdEncoding.DecodeString(envelope.Payload) | ||
| if err != nil { | ||
| return xerrors.Errorf("failed to decode attestation payload: %w", err) | ||
| } | ||
|
|
||
| statement := (*in_toto.Statement)(s) | ||
| if err = json.NewDecoder(bytes.NewReader(decoded)).Decode(statement); err != nil { | ||
| return xerrors.Errorf("failed to decode attestation payload as in-toto statement: %w", err) | ||
| } | ||
|
|
||
| return nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| package attestation_test | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "os" | ||
| "testing" | ||
|
|
||
| "github.com/in-toto/in-toto-golang/in_toto" | ||
| slsa "github.com/in-toto/in-toto-golang/in_toto/slsa_provenance/v0.2" | ||
| "github.com/stretchr/testify/require" | ||
|
|
||
| "github.com/aquasecurity/trivy/pkg/attestation" | ||
| ) | ||
|
|
||
| func TestStatement_UnmarshalJSON(t *testing.T) { | ||
| tests := []struct { | ||
| name string | ||
| inputFile string | ||
| want attestation.Statement | ||
| }{ | ||
| { | ||
| name: "happy path", | ||
| inputFile: "testdata/attestation.json", | ||
| want: attestation.Statement{ | ||
| StatementHeader: in_toto.StatementHeader{ | ||
| Type: "https://in-toto.io/Statement/v0.1", | ||
| PredicateType: "cosign.sigstore.dev/attestation/v1", | ||
| Subject: []in_toto.Subject{ | ||
| { | ||
| Name: "ghcr.io/aquasecurity/trivy-test-images", | ||
| Digest: slsa.DigestSet{ | ||
| "sha256": "72c42ed48c3a2db31b7dafe17d275b634664a708d901ec9fd57b1529280f01fb", | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| Predicate: &attestation.CosignPredicate{ | ||
| Data: "foo\n", | ||
| }, | ||
| }, | ||
| }, | ||
| } | ||
| for _, tt := range tests { | ||
| t.Run(tt.name, func(t *testing.T) { | ||
| f, err := os.Open(tt.inputFile) | ||
| require.NoError(t, err) | ||
| defer f.Close() | ||
|
|
||
| got := attestation.Statement{Predicate: &attestation.CosignPredicate{}} | ||
| err = json.NewDecoder(f).Decode(&got) | ||
| require.NoError(t, err) | ||
| require.Equal(t, tt.want, got) | ||
| }) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1 @@ | ||
| {"payloadType":"application/vnd.in-toto+json","payload":"eyJfdHlwZSI6Imh0dHBzOi8vaW4tdG90by5pby9TdGF0ZW1lbnQvdjAuMSIsInByZWRpY2F0ZVR5cGUiOiJjb3NpZ24uc2lnc3RvcmUuZGV2L2F0dGVzdGF0aW9uL3YxIiwic3ViamVjdCI6W3sibmFtZSI6ImdoY3IuaW8vYXF1YXNlY3VyaXR5L3RyaXZ5LXRlc3QtaW1hZ2VzIiwiZGlnZXN0Ijp7InNoYTI1NiI6IjcyYzQyZWQ0OGMzYTJkYjMxYjdkYWZlMTdkMjc1YjYzNDY2NGE3MDhkOTAxZWM5ZmQ1N2IxNTI5MjgwZjAxZmIifX1dLCJwcmVkaWNhdGUiOnsiRGF0YSI6ImZvb1xuIiwiVGltZXN0YW1wIjoiMjAyMi0wOC0wM1QxMzowODoyN1oifX0=","signatures":[{"keyid":"","sig":"MEUCIQClJhJ2mS78MWy4L32wxd+8gPXYwpvyn0nmuY9r5t8iiAIgHKKoIJbKAKQ8i/bgN76ocuGhwUMdbgqpgKF0yFfPfGI="}]} |
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