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minio/pkg/api/minioapi/headers.go

77 lines
2.2 KiB

/*
* Mini Object Storage, (C) 2015 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 minioapi
import (
"bytes"
"encoding/json"
"encoding/xml"
"net/http"
"strconv"
"time"
mstorage "github.com/minio-io/minio/pkg/storage"
)
// Write Common Header helpers
func writeCommonHeaders(w http.ResponseWriter, acceptsType string) {
w.Header().Set("Server", "Minio")
w.Header().Set("Content-Type", acceptsType)
}
func writeErrorResponse(w http.ResponseWriter, response interface{}, acceptsType contentType) []byte {
var bytesBuffer bytes.Buffer
var encoder encoder
// write common headers
writeCommonHeaders(w, getContentString(acceptsType))
switch acceptsType {
case xmlType:
encoder = xml.NewEncoder(&bytesBuffer)
case jsonType:
encoder = json.NewEncoder(&bytesBuffer)
}
encoder.Encode(response)
return bytesBuffer.Bytes()
}
// Write Object Header helper
func writeObjectHeaders(w http.ResponseWriter, metadata mstorage.ObjectMetadata) {
lastModified := metadata.Created.Format(time.RFC1123)
// write common headers
writeCommonHeaders(w, metadata.ContentType)
w.Header().Set("ETag", metadata.ETag)
w.Header().Set("Last-Modified", lastModified)
w.Header().Set("Content-Length", strconv.FormatInt(metadata.Size, 10))
w.Header().Set("Connection", "close")
}
func writeObjectHeadersAndResponse(w http.ResponseWriter, response interface{}, acceptsType contentType) []byte {
var bytesBuffer bytes.Buffer
var encoder encoder
// write common headers
writeCommonHeaders(w, getContentString(acceptsType))
switch acceptsType {
case xmlType:
encoder = xml.NewEncoder(&bytesBuffer)
case jsonType:
encoder = json.NewEncoder(&bytesBuffer)
}
w.Header().Set("Connection", "close")
encoder.Encode(response)
return bytesBuffer.Bytes()
}