[#1109] object: Validate attribute EXPIRATION_EPOCH on put

Signed-off-by: Anton Nikiforov <an.nikiforov@yadro.com>

pkg/core/object/fmt.go

@@ -124,15 +124,22 @@ func (v *FormatValidator) Validate(ctx context.Context, obj *objectSDK.Object, u
 		return fmt.Errorf("invalid attributes: %w", err)
 	}
 
+	exp, err := expirationEpochAttribute(obj)
+	if err != nil {
+		if !errors.Is(err, errNoExpirationEpoch) {
+			return fmt.Errorf("object did not pass expiration check: %w", err)
+		}
+	} else if !unprepared && exp < v.netState.CurrentEpoch() {
+		if err := v.checkIfExpired(ctx, obj); err != nil {
+			return fmt.Errorf("object did not pass expiration check: %w", err)
+		}
+	}
+
 	if !unprepared {
 		if err := v.validateSignatureKey(obj); err != nil {
 			return fmt.Errorf("(%T) could not validate signature key: %w", v, err)
 		}
 
-		if err := v.checkExpiration(ctx, obj); err != nil {
-			return fmt.Errorf("object did not pass expiration check: %w", err)
-		}
-
 		if err := objectSDK.CheckHeaderVerificationFields(obj); err != nil {
 			return fmt.Errorf("(%T) could not validate header fields: %w", v, err)
 		}
@@ -348,17 +355,7 @@ func (v *FormatValidator) fillAndValidateTombstoneMeta(o *objectSDK.Object, meta
 
 var errExpired = errors.New("object has expired")
 
-func (v *FormatValidator) checkExpiration(ctx context.Context, obj *objectSDK.Object) error {
+func (v *FormatValidator) checkIfExpired(ctx context.Context, obj *objectSDK.Object) error {
-	exp, err := expirationEpochAttribute(obj)
-	if err != nil {
-		if errors.Is(err, errNoExpirationEpoch) {
-			return nil // objects without expiration attribute are valid
-		}
-
-		return err
-	}
-
-	if exp < v.netState.CurrentEpoch() {
 	// an object could be expired but locked;
 	// put such an object is a correct operation
 
@@ -377,7 +374,6 @@ func (v *FormatValidator) checkExpiration(ctx context.Context, obj *objectSDK.Ob
 	if !locked {
 		return errExpired
 	}
-	}
 
 	return nil
 }

pkg/core/object/fmt_test.go

@@ -195,6 +195,8 @@ func TestFormatValidator_Validate(t *testing.T) {
 			val := "text"
 			err := v.Validate(context.Background(), fn(val), false)
 			require.Error(t, err)
+			err = v.Validate(context.Background(), fn(val), true)
+			require.Error(t, err)
 		})
 
 		t.Run("expired object", func(t *testing.T) {