adjust s3 header file.

weed/s3api/filer_util_tags.go

@@ -4,10 +4,11 @@ import (
 	"strings"
 
 	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+	xhttp "github.com/chrislusf/seaweedfs/weed/s3api/http"
 )
 
 const (
-	S3TAG_PREFIX = "s3-"
+	S3TAG_PREFIX = xhttp.AmzObjectTagging + "-"
 )
 
 func (s3a *S3ApiServer) getTags(parentDirectoryPath string, entryName string) (tags map[string]string, err error) {

weed/s3api/http/header.go

@@ -0,0 +1,30 @@
+/*
+ * MinIO Cloud Storage, (C) 2019 MinIO, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package http
+
+// Standard S3 HTTP request constants
+const (
+	// S3 storage class
+	AmzStorageClass = "x-amz-storage-class"
+
+	// S3 user-defined metadata
+	AmzUserMetaPrefix = "X-Amz-Meta-"
+
+	// S3 object tagging
+	AmzObjectTagging = "X-Amz-Tagging"
+	AmzTagCount      = "x-amz-tagging-count"
+)

weed/s3api/s3api_objects_list_handlers.go

@@ -12,12 +12,10 @@ import (
 	"strings"
 	"time"
 
-	"github.com/chrislusf/seaweedfs/weed/util"
-
-	"github.com/chrislusf/seaweedfs/weed/s3api/s3err"
-
 	"github.com/chrislusf/seaweedfs/weed/filer"
 	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+	xhttp "github.com/chrislusf/seaweedfs/weed/s3api/http"
+	"github.com/chrislusf/seaweedfs/weed/s3api/s3err"
 )
 
 type ListBucketResultV2 struct {
@@ -141,7 +139,7 @@ func (s3a *S3ApiServer) listFilerEntries(bucket string, originalPrefix string, m
 				}
 			} else {
 				storageClass := "STANDARD"
-				if v, ok := entry.Extended[util.AmzStorageClass]; ok {
+				if v, ok := entry.Extended[xhttp.AmzStorageClass]; ok {
 					storageClass = string(v)
 				}
 				contents = append(contents, ListEntry{