fixes

With these final fixes, the s3-tests should now:
✅ Return MalformedXML for ObjectLockEnabled: 'Disabled'
✅ Return MalformedXML when both Days and Years are specified in retention configuration
✅ Return InvalidBucketState (409 Conflict) when trying to suspend versioning on buckets with object lock enabled
✅ Handle all object lock validation errors consistently with proper error codes

weed/s3api/s3api_bucket_handlers.go

@@ -758,6 +758,17 @@ func (s3a *S3ApiServer) PutBucketVersioningHandler(w http.ResponseWriter, r *htt
 		return
 	}
 
+	// Check if trying to suspend versioning on a bucket with object lock enabled
+	if status == "Suspended" {
+		// Get bucket configuration to check for object lock
+		bucketConfig, errCode := s3a.getBucketConfig(bucket)
+		if errCode == s3err.ErrNone && bucketConfig.ObjectLockConfig != nil {
+			// Object lock is enabled, cannot suspend versioning
+			s3err.WriteErrorResponse(w, r, s3err.ErrInvalidBucketState)
+			return
+		}
+	}
+
 	// Update bucket versioning configuration using new bucket config system
 	if errCode := s3a.setBucketVersioningStatus(bucket, status); errCode != s3err.ErrNone {
 		glog.Errorf("PutBucketVersioningHandler save config: %d", errCode)

weed/s3api/s3api_object_handlers_put.go

@@ -559,17 +559,19 @@ func mapValidationErrorToS3Error(err error) s3err.ErrorCode {
 		// This matches AWS S3 behavior and s3-tests expectations
 		return s3err.ErrInvalidBucketState
 	case errors.Is(err, ErrInvalidObjectLockMode):
-		return s3err.ErrInvalidRequest
+		return s3err.ErrMalformedXML
 	case errors.Is(err, ErrInvalidLegalHoldStatus):
 		// For malformed legal hold status, return MalformedXML as expected by s3-tests
 		return s3err.ErrMalformedXML
 	case errors.Is(err, ErrInvalidRetentionDateFormat):
 		return s3err.ErrMalformedXML
 	case errors.Is(err, ErrInvalidRetentionPeriod):
-		// For invalid retention periods (days/years), return InvalidRetentionPeriod
-		return s3err.ErrInvalidRetentionPeriod
+		// For invalid retention periods (days/years), return MalformedXML
+		// This includes cases where both Days and Years are specified
+		return s3err.ErrMalformedXML
 	case errors.Is(err, ErrInvalidRetentionMode):
 		// For invalid retention modes, return MalformedXML
+		// This includes cases where ObjectLockEnabled is 'Disabled'
 		return s3err.ErrMalformedXML
 	default:
 		return s3err.ErrInvalidRequest

weed/s3api/s3api_object_retention.go

@@ -188,18 +188,19 @@ func validateLegalHold(legalHold *ObjectLegalHold) error {
 func validateObjectLockConfiguration(config *ObjectLockConfiguration) error {
 	// ObjectLockEnabled is required for bucket-level configuration
 	if config.ObjectLockEnabled == "" {
-		return fmt.Errorf("object lock configuration must specify ObjectLockEnabled")
+		return ErrInvalidRetentionMode
 	}
 
 	// Validate ObjectLockEnabled value
 	if config.ObjectLockEnabled != s3_constants.ObjectLockEnabled {
-		return fmt.Errorf("invalid object lock enabled value: %s", config.ObjectLockEnabled)
+		// ObjectLockEnabled can only be 'Enabled', any other value (including 'Disabled') is malformed XML
+		return ErrInvalidRetentionMode
 	}
 
 	// Validate Rule if present
 	if config.Rule != nil {
 		if config.Rule.DefaultRetention == nil {
-			return fmt.Errorf("rule configuration must specify DefaultRetention")
+			return ErrInvalidRetentionPeriod
 		}
 		return validateDefaultRetention(config.Rule.DefaultRetention)
 	}