Added debug method to internal logger (#24)

* export GetMeasurementsFromTLS and make independent of proxy

* Added debug method to internal logger

Author: metachris

internal/attestation/attestation.go

@@ -45,13 +45,17 @@ const (
 
 // Logger is a logger used to print warnings and infos during attestation validation.
 type Logger interface {
+	Debug(msg string, args ...any)
 	Info(msg string, args ...any)
 	Warn(msg string, args ...any)
 }
 
 // NOPLogger is a no-op implementation of [Logger].
 type NOPLogger struct{}
 
+// Debug is a no-op.
+func (NOPLogger) Debug(string, ...interface{}) {}
+
 // Info is a no-op.
 func (NOPLogger) Info(string, ...interface{}) {}
 

internal/attestation/azure/snp/validator.go

@@ -223,15 +223,6 @@ func (v *Validator) checkIDKeyDigest(ctx context.Context, report *spb.Attestatio
 	return nil
 }
 
-// nopAttestationLogger is a no-op implementation of AttestationLogger.
-type nopAttestationLogger struct{}
-
-// Infof is a no-op.
-func (nopAttestationLogger) Info(string, ...interface{}) {}
-
-// Warnf is a no-op.
-func (nopAttestationLogger) Warn(string, ...interface{}) {}
-
 type maaValidator interface {
 	validateToken(ctx context.Context, maaURL string, token string, extraData []byte) error
 }

internal/attestation/vtpm/attestation.go

@@ -224,7 +224,7 @@ func (v *Validator) Validate(ctx context.Context, attDocRaw []byte, nonce []byte
 	if err := json.Unmarshal(attDocRaw, &attDoc); err != nil {
 		return nil, fmt.Errorf("unmarshaling TPM attestation document: %w", err)
 	}
-	v.log.Warn(fmt.Sprintf("Attestation document: %s", string(attDocRaw)))
+	v.log.Debug(fmt.Sprintf("Attestation document: %s", string(attDocRaw)))
 
 	extraData := attestation.MakeExtraData(attDoc.UserData, nonce)
 

internal/attestation/vtpm/attestation_test.go

@@ -478,13 +478,18 @@ func TestGetSelectedMeasurements(t *testing.T) {
 
 type testAttestationLogger struct {
 	infos    []string
+	debugs   []string
 	warnings []string
 }
 
 func (w *testAttestationLogger) Info(format string, args ...any) {
 	w.infos = append(w.infos, fmt.Sprintf(format, args...))
 }
 
+func (w *testAttestationLogger) Debug(format string, args ...any) {
+	w.debugs = append(w.debugs, fmt.Sprintf(format, args...))
+}
+
 func (w *testAttestationLogger) Warn(format string, args ...any) {
 	w.warnings = append(w.warnings, fmt.Sprintf(format, args...))
 }

proxy/atls_config.go

@@ -120,6 +120,10 @@ func (w AttestationLogger) Info(format string, args ...any) {
 	w.Log.Log(context.TODO(), slog.LevelInfo, fmt.Sprintf(format, args...))
 }
 
+func (w AttestationLogger) Debug(format string, args ...any) {
+	w.Log.Log(context.TODO(), slog.LevelDebug, fmt.Sprintf(format, args...))
+}
+
 func (w AttestationLogger) Warn(format string, args ...any) {
 	w.Log.Log(context.TODO(), slog.LevelWarn, fmt.Sprintf(format, args...))
 }