Merge pull request #17 from nspcc-dev/api-handlers

API Handlers (Bucket)

api/errors.go

@@ -1612,6 +1612,10 @@ func (e errorCodeMap) ToAPIErr(errCode ErrorCode) Error {
 	return e.ToAPIErrWithErr(errCode, nil)
 }
 
+func (e Error) Error() string {
+	return fmt.Sprintf("%s: %d => %s", e.Code, e.HTTPStatusCode, e.Description)
+}
+
 // GetAPIError provides API Error for input API error code.
 func GetAPIError(code ErrorCode) Error {
 	if apiErr, ok := errorCodes[code]; ok {

api/handler/list-buckets.go

@@ -0,0 +1,73 @@
+package handler
+
+import (
+	"net/http"
+	"time"
+
+	"github.com/nspcc-dev/neofs-s3-gate/api"
+	"github.com/nspcc-dev/neofs-s3-gate/auth"
+	"go.uber.org/zap"
+)
+
+func (h *handler) ListBucketsHandler(w http.ResponseWriter, r *http.Request) {
+	var (
+		res *ListBucketsResponse
+		rid = api.GetRequestID(r.Context())
+	)
+
+	tkn, err := auth.GetBearerToken(r.Context())
+	if err != nil {
+		h.log.Error("something went wrong",
+			zap.String("request_id", rid),
+			zap.Error(err))
+
+		api.WriteErrorResponse(r.Context(), w, api.Error{
+			Code:           api.GetAPIError(api.ErrInternalError).Code,
+			Description:    err.Error(),
+			HTTPStatusCode: http.StatusInternalServerError,
+		}, r.URL)
+
+		return
+	}
+
+	list, err := h.obj.ListBuckets(r.Context())
+	if err != nil {
+		h.log.Error("something went wrong",
+			zap.String("request_id", rid),
+			zap.Error(err))
+
+		api.WriteErrorResponse(r.Context(), w, api.Error{
+			Code:           api.GetAPIError(api.ErrInternalError).Code,
+			Description:    err.Error(),
+			HTTPStatusCode: http.StatusInternalServerError,
+		}, r.URL)
+
+		return
+	}
+
+	res = &ListBucketsResponse{
+		Owner: Owner{
+			ID:          tkn.OwnerID.String(),
+			DisplayName: tkn.OwnerID.String(),
+		},
+	}
+
+	for _, item := range list {
+		res.Buckets.Buckets = append(res.Buckets.Buckets, Bucket{
+			Name:         item.Name,
+			CreationDate: item.Created.Format(time.RFC3339),
+		})
+	}
+
+	if err = api.EncodeToResponse(w, res); err != nil {
+		h.log.Error("something went wrong",
+			zap.String("request_id", rid),
+			zap.Error(err))
+
+		api.WriteErrorResponse(r.Context(), w, api.Error{
+			Code:           api.GetAPIError(api.ErrInternalError).Code,
+			Description:    err.Error(),
+			HTTPStatusCode: http.StatusInternalServerError,
+		}, r.URL)
+	}
+}

api/handler/list-objects.go

@@ -0,0 +1,137 @@
+package handler
+
+import (
+	"net/http"
+	"strconv"
+	"time"
+
+	"github.com/gorilla/mux"
+	"github.com/nspcc-dev/neofs-s3-gate/api"
+	"github.com/nspcc-dev/neofs-s3-gate/api/layer"
+	"go.uber.org/zap"
+)
+
+type listObjectsArgs struct {
+	Bucket    string
+	Delimeter string
+	Encode    string
+	Marker    string
+	MaxKeys   int
+	Prefix    string
+	Version   string
+}
+
+var maxObjectList = 10000 // Limit number of objects in a listObjectsResponse/listObjectsVersionsResponse.
+
+func (h *handler) ListObjectsV1Handler(w http.ResponseWriter, r *http.Request) {
+	var (
+		err error
+		arg *listObjectsArgs
+		res *ListObjectsResponse
+		rid = api.GetRequestID(r.Context())
+	)
+
+	if arg, err = parseListObjectArgs(r); err != nil {
+		h.log.Error("something went wrong",
+			zap.String("request_id", rid),
+			zap.Error(err))
+
+		api.WriteErrorResponse(r.Context(), w, api.Error{
+			Code:           api.GetAPIError(api.ErrBadRequest).Code,
+			Description:    err.Error(),
+			HTTPStatusCode: http.StatusBadRequest,
+		}, r.URL)
+
+		return
+	}
+
+	list, err := h.obj.ListObjects(r.Context(), &layer.ListObjectsParams{
+		Bucket:    arg.Bucket,
+		Prefix:    arg.Prefix,
+		MaxKeys:   arg.MaxKeys,
+		Delimiter: arg.Delimeter,
+	})
+	if err != nil {
+		h.log.Error("something went wrong",
+			zap.String("request_id", rid),
+			zap.Error(err))
+
+		api.WriteErrorResponse(r.Context(), w, api.Error{
+			Code:           api.GetAPIError(api.ErrInternalError).Code,
+			Description:    err.Error(),
+			HTTPStatusCode: http.StatusInternalServerError,
+		}, r.URL)
+
+		return
+	}
+
+	res = &ListObjectsResponse{
+		Name:         arg.Bucket,
+		EncodingType: arg.Encode,
+		Marker:       arg.Marker,
+		Prefix:       arg.Prefix,
+		MaxKeys:      arg.MaxKeys,
+		Delimiter:    arg.Delimeter,
+
+		IsTruncated: list.IsTruncated,
+		NextMarker:  list.NextContinuationToken,
+	}
+
+	// fill common prefixes
+	for i := range list.Prefixes {
+		res.CommonPrefixes = append(res.CommonPrefixes, CommonPrefix{
+			Prefix: list.Prefixes[i],
+		})
+	}
+
+	// fill contents
+	for _, obj := range list.Objects {
+		res.Contents = append(res.Contents, Object{
+			Key:          obj.Name,
+			Size:         obj.Size,
+			UserMetadata: obj.Headers,
+			LastModified: obj.Created.Format(time.RFC3339),
+
+			// ETag:         "",
+			// Owner:        Owner{},
+			// StorageClass: "",
+		})
+	}
+
+	if err := api.EncodeToResponse(w, res); err != nil {
+		h.log.Error("something went wrong",
+			zap.String("request_id", rid),
+			zap.Error(err))
+
+		api.WriteErrorResponse(r.Context(), w, api.Error{
+			Code:           "XNeoFSUnimplemented",
+			Description:    "implement me " + mux.CurrentRoute(r).GetName(),
+			HTTPStatusCode: http.StatusNotImplemented,
+		}, r.URL)
+	}
+}
+
+func parseListObjectArgs(r *http.Request) (*listObjectsArgs, error) {
+	var (
+		err error
+		res listObjectsArgs
+	)
+
+	if r.URL.Query().Get("max-keys") == "" {
+		res.MaxKeys = maxObjectList
+	} else if res.MaxKeys, err = strconv.Atoi(r.URL.Query().Get("max-keys")); err != nil {
+		return nil, api.GetAPIError(api.ErrInvalidMaxKeys)
+	}
+
+	res.Prefix = r.URL.Query().Get("prefix")
+	res.Marker = r.URL.Query().Get("key-marker")
+	res.Delimeter = r.URL.Query().Get("delimiter")
+	res.Encode = r.URL.Query().Get("encoding-type")
+	res.Version = r.URL.Query().Get("version-id-marker")
+
+	if info := api.GetReqInfo(r.Context()); info != nil {
+		res.Bucket = info.BucketName
+	}
+
+	return &res, nil
+}

api/handler/response.go

@@ -0,0 +1,82 @@
+package handler
+
+import "encoding/xml"
+
+// ListBucketsResponse - format for list buckets response
+type ListBucketsResponse struct {
+	XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ ListAllMyBucketsResult" json:"-"`
+
+	Owner Owner
+
+	// Container for one or more buckets.
+	Buckets struct {
+		Buckets []Bucket `xml:"Bucket"`
+	} // Buckets are nested
+}
+
+// Bucket container for bucket metadata
+type Bucket struct {
+	Name         string
+	CreationDate string // time string of format "2006-01-02T15:04:05.000Z"
+}
+
+// Owner - bucket owner/principal
+type Owner struct {
+	ID          string
+	DisplayName string
+}
+
+// ListObjectsResponse - format for list objects response.
+type ListObjectsResponse struct {
+	XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ ListBucketResult" json:"-"`
+
+	Name   string
+	Prefix string
+	Marker string
+
+	// When response is truncated (the IsTruncated element value in the response
+	// is true), you can use the key name in this field as marker in the subsequent
+	// request to get next set of objects. Server lists objects in alphabetical
+	// order Note: This element is returned only if you have delimiter request parameter
+	// specified. If response does not include the NextMaker and it is truncated,
+	// you can use the value of the last Key in the response as the marker in the
+	// subsequent request to get the next set of object keys.
+	NextMarker string `xml:"NextMarker,omitempty"`
+
+	MaxKeys   int
+	Delimiter string
+	// A flag that indicates whether or not ListObjects returned all of the results
+	// that satisfied the search criteria.
+	IsTruncated bool
+
+	Contents       []Object
+	CommonPrefixes []CommonPrefix
+
+	// Encoding type used to encode object keys in the response.
+	EncodingType string `xml:"EncodingType,omitempty"`
+}
+
+// CommonPrefix container for prefix response in ListObjectsResponse
+type CommonPrefix struct {
+	Prefix string
+}
+
+// Object container for object metadata
+type Object struct {
+	Key          string
+	LastModified string // time string of format "2006-01-02T15:04:05.000Z"
+	ETag         string
+	Size         int64
+
+	// Owner of the object.
+	Owner Owner
+
+	// The class of storage used to store the object.
+	StorageClass string
+
+	// UserMetadata user-defined metadata
+	UserMetadata StringMap `xml:"UserMetadata,omitempty"`
+}
+
+// StringMap is a map[string]string.
+type StringMap map[string]string

api/handler/unimplemented.go

@@ -3,21 +3,14 @@ package handler
 import (
 	"net/http"
 
+	"github.com/gorilla/mux"
 	"github.com/nspcc-dev/neofs-s3-gate/api"
 )
 
-func (h *handler) ListBucketsHandler(w http.ResponseWriter, r *http.Request) {
-	api.WriteErrorResponse(r.Context(), w, api.Error{
-		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me ListBucketsHandler",
-		HTTPStatusCode: http.StatusNotImplemented,
-	}, r.URL)
-}
-
 func (h *handler) HeadObjectHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -25,7 +18,7 @@ func (h *handler) HeadObjectHandler(w http.ResponseWriter, r *http.Request) {
 func (h *handler) CopyObjectPartHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -33,7 +26,7 @@ func (h *handler) CopyObjectPartHandler(w http.ResponseWriter, r *http.Request)
 func (h *handler) PutObjectPartHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -41,7 +34,7 @@ func (h *handler) PutObjectPartHandler(w http.ResponseWriter, r *http.Request) {
 func (h *handler) ListObjectPartsHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -49,7 +42,7 @@ func (h *handler) ListObjectPartsHandler(w http.ResponseWriter, r *http.Request)
 func (h *handler) CompleteMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -57,7 +50,7 @@ func (h *handler) CompleteMultipartUploadHandler(w http.ResponseWriter, r *http.
 func (h *handler) NewMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -65,7 +58,7 @@ func (h *handler) NewMultipartUploadHandler(w http.ResponseWriter, r *http.Reque
 func (h *handler) AbortMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -73,7 +66,7 @@ func (h *handler) AbortMultipartUploadHandler(w http.ResponseWriter, r *http.Req
 func (h *handler) GetObjectACLHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -81,7 +74,7 @@ func (h *handler) GetObjectACLHandler(w http.ResponseWriter, r *http.Request) {
 func (h *handler) PutObjectACLHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -89,7 +82,7 @@ func (h *handler) PutObjectACLHandler(w http.ResponseWriter, r *http.Request) {
 func (h *handler) GetObjectTaggingHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -97,7 +90,7 @@ func (h *handler) GetObjectTaggingHandler(w http.ResponseWriter, r *http.Request
 func (h *handler) PutObjectTaggingHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -105,7 +98,7 @@ func (h *handler) PutObjectTaggingHandler(w http.ResponseWriter, r *http.Request
 func (h *handler) DeleteObjectTaggingHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -113,7 +106,7 @@ func (h *handler) DeleteObjectTaggingHandler(w http.ResponseWriter, r *http.Requ
 func (h *handler) SelectObjectContentHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -121,7 +114,7 @@ func (h *handler) SelectObjectContentHandler(w http.ResponseWriter, r *http.Requ
 func (h *handler) GetObjectRetentionHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -129,7 +122,7 @@ func (h *handler) GetObjectRetentionHandler(w http.ResponseWriter, r *http.Reque
 func (h *handler) GetObjectLegalHoldHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -137,7 +130,7 @@ func (h *handler) GetObjectLegalHoldHandler(w http.ResponseWriter, r *http.Reque
 func (h *handler) GetObjectHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -145,7 +138,7 @@ func (h *handler) GetObjectHandler(w http.ResponseWriter, r *http.Request) {
 func (h *handler) CopyObjectHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -153,7 +146,7 @@ func (h *handler) CopyObjectHandler(w http.ResponseWriter, r *http.Request) {
 func (h *handler) PutObjectRetentionHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -161,7 +154,7 @@ func (h *handler) PutObjectRetentionHandler(w http.ResponseWriter, r *http.Reque
 func (h *handler) PutObjectLegalHoldHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -169,7 +162,7 @@ func (h *handler) PutObjectLegalHoldHandler(w http.ResponseWriter, r *http.Reque
 func (h *handler) PutObjectHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -177,7 +170,7 @@ func (h *handler) PutObjectHandler(w http.ResponseWriter, r *http.Request) {
 func (h *handler) DeleteObjectHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -185,7 +178,7 @@ func (h *handler) DeleteObjectHandler(w http.ResponseWriter, r *http.Request) {
 func (h *handler) GetBucketLocationHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -193,7 +186,7 @@ func (h *handler) GetBucketLocationHandler(w http.ResponseWriter, r *http.Reques
 func (h *handler) GetBucketPolicyHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -201,7 +194,7 @@ func (h *handler) GetBucketPolicyHandler(w http.ResponseWriter, r *http.Request)
 func (h *handler) GetBucketLifecycleHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -209,7 +202,7 @@ func (h *handler) GetBucketLifecycleHandler(w http.ResponseWriter, r *http.Reque
 func (h *handler) GetBucketEncryptionHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -217,7 +210,7 @@ func (h *handler) GetBucketEncryptionHandler(w http.ResponseWriter, r *http.Requ
 func (h *handler) GetBucketACLHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -225,7 +218,7 @@ func (h *handler) GetBucketACLHandler(w http.ResponseWriter, r *http.Request) {
 func (h *handler) PutBucketACLHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -233,7 +226,7 @@ func (h *handler) PutBucketACLHandler(w http.ResponseWriter, r *http.Request) {
 func (h *handler) GetBucketCorsHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -241,7 +234,7 @@ func (h *handler) GetBucketCorsHandler(w http.ResponseWriter, r *http.Request) {
 func (h *handler) GetBucketWebsiteHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -249,7 +242,7 @@ func (h *handler) GetBucketWebsiteHandler(w http.ResponseWriter, r *http.Request
 func (h *handler) GetBucketAccelerateHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -257,7 +250,7 @@ func (h *handler) GetBucketAccelerateHandler(w http.ResponseWriter, r *http.Requ
 func (h *handler) GetBucketRequestPaymentHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -265,7 +258,7 @@ func (h *handler) GetBucketRequestPaymentHandler(w http.ResponseWriter, r *http.
 func (h *handler) GetBucketLoggingHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -273,7 +266,7 @@ func (h *handler) GetBucketLoggingHandler(w http.ResponseWriter, r *http.Request
 func (h *handler) GetBucketReplicationHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -281,7 +274,7 @@ func (h *handler) GetBucketReplicationHandler(w http.ResponseWriter, r *http.Req
 func (h *handler) GetBucketTaggingHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -289,7 +282,7 @@ func (h *handler) GetBucketTaggingHandler(w http.ResponseWriter, r *http.Request
 func (h *handler) DeleteBucketWebsiteHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -297,7 +290,7 @@ func (h *handler) DeleteBucketWebsiteHandler(w http.ResponseWriter, r *http.Requ
 func (h *handler) DeleteBucketTaggingHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -305,7 +298,7 @@ func (h *handler) DeleteBucketTaggingHandler(w http.ResponseWriter, r *http.Requ
 func (h *handler) GetBucketObjectLockConfigHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -313,7 +306,7 @@ func (h *handler) GetBucketObjectLockConfigHandler(w http.ResponseWriter, r *htt
 func (h *handler) GetBucketVersioningHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -321,7 +314,7 @@ func (h *handler) GetBucketVersioningHandler(w http.ResponseWriter, r *http.Requ
 func (h *handler) GetBucketNotificationHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -329,7 +322,7 @@ func (h *handler) GetBucketNotificationHandler(w http.ResponseWriter, r *http.Re
 func (h *handler) ListenBucketNotificationHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -337,7 +330,7 @@ func (h *handler) ListenBucketNotificationHandler(w http.ResponseWriter, r *http
 func (h *handler) ListMultipartUploadsHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -345,7 +338,7 @@ func (h *handler) ListMultipartUploadsHandler(w http.ResponseWriter, r *http.Req
 func (h *handler) ListObjectsV2MHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -353,7 +346,7 @@ func (h *handler) ListObjectsV2MHandler(w http.ResponseWriter, r *http.Request)
 func (h *handler) ListObjectsV2Handler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -361,15 +354,7 @@ func (h *handler) ListObjectsV2Handler(w http.ResponseWriter, r *http.Request) {
 func (h *handler) ListBucketObjectVersionsHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
-		HTTPStatusCode: http.StatusNotImplemented,
-	}, r.URL)
-}
-
-func (h *handler) ListObjectsV1Handler(w http.ResponseWriter, r *http.Request) {
-	api.WriteErrorResponse(r.Context(), w, api.Error{
-		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -377,7 +362,7 @@ func (h *handler) ListObjectsV1Handler(w http.ResponseWriter, r *http.Request) {
 func (h *handler) PutBucketLifecycleHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -385,7 +370,7 @@ func (h *handler) PutBucketLifecycleHandler(w http.ResponseWriter, r *http.Reque
 func (h *handler) PutBucketEncryptionHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -393,7 +378,7 @@ func (h *handler) PutBucketEncryptionHandler(w http.ResponseWriter, r *http.Requ
 func (h *handler) PutBucketPolicyHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -401,7 +386,7 @@ func (h *handler) PutBucketPolicyHandler(w http.ResponseWriter, r *http.Request)
 func (h *handler) PutBucketObjectLockConfigHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -409,7 +394,7 @@ func (h *handler) PutBucketObjectLockConfigHandler(w http.ResponseWriter, r *htt
 func (h *handler) PutBucketTaggingHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -417,7 +402,7 @@ func (h *handler) PutBucketTaggingHandler(w http.ResponseWriter, r *http.Request
 func (h *handler) PutBucketVersioningHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -425,7 +410,7 @@ func (h *handler) PutBucketVersioningHandler(w http.ResponseWriter, r *http.Requ
 func (h *handler) PutBucketNotificationHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -433,7 +418,7 @@ func (h *handler) PutBucketNotificationHandler(w http.ResponseWriter, r *http.Re
 func (h *handler) PutBucketHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -441,7 +426,7 @@ func (h *handler) PutBucketHandler(w http.ResponseWriter, r *http.Request) {
 func (h *handler) HeadBucketHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -449,7 +434,7 @@ func (h *handler) HeadBucketHandler(w http.ResponseWriter, r *http.Request) {
 func (h *handler) PostPolicyBucketHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -457,7 +442,7 @@ func (h *handler) PostPolicyBucketHandler(w http.ResponseWriter, r *http.Request
 func (h *handler) DeleteMultipleObjectsHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -465,7 +450,7 @@ func (h *handler) DeleteMultipleObjectsHandler(w http.ResponseWriter, r *http.Re
 func (h *handler) DeleteBucketPolicyHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -473,7 +458,7 @@ func (h *handler) DeleteBucketPolicyHandler(w http.ResponseWriter, r *http.Reque
 func (h *handler) DeleteBucketLifecycleHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -481,7 +466,7 @@ func (h *handler) DeleteBucketLifecycleHandler(w http.ResponseWriter, r *http.Re
 func (h *handler) DeleteBucketEncryptionHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
@@ -489,7 +474,7 @@ func (h *handler) DeleteBucketEncryptionHandler(w http.ResponseWriter, r *http.R
 func (h *handler) DeleteBucketHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteErrorResponse(r.Context(), w, api.Error{
 		Code:           "XNeoFSUnimplemented",
-		Description:    "implement me",
+		Description:    "implement me " + mux.CurrentRoute(r).GetName(),
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }

api/response.go

@@ -68,7 +68,11 @@ const (
 	hdrSSECopyKey = "X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key"
 )
 
-var deploymentID, _ = uuid.NewRandom()
+var (
+	deploymentID, _ = uuid.NewRandom()
+
+	xmlHeader = []byte(xml.Header)
+)
 
 // Non exhaustive list of AWS S3 standard error responses -
 // http://docs.aws.amazon.com/AmazonS3/latest/API/ErrorResponses.html
@@ -181,6 +185,14 @@ func EncodeResponse(response interface{}) []byte {
 	return bytesBuffer.Bytes()
 }
 
+// EncodeToResponse encodes the response into ResponseWriter.
+func EncodeToResponse(w http.ResponseWriter, response interface{}) error {
+	if _, err := w.Write(xmlHeader); err != nil {
+		return err
+	}
+	return xml.NewEncoder(w).Encode(response)
+}
+
 // WriteSuccessResponseXML writes success headers and response if any,
 // with content-type set to `application/xml`.
 func WriteSuccessResponseXML(w http.ResponseWriter, response []byte) {