mirror of
https://github.com/minio/minio.git
synced 2024-12-26 23:25:54 -05:00
99 lines
2.9 KiB
Go
99 lines
2.9 KiB
Go
/*
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* Mini Object Storage, (C) 2015 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package minioapi
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import (
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"bytes"
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"encoding/json"
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"encoding/xml"
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"net/http"
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"strconv"
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"time"
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mstorage "github.com/minio-io/minio/pkg/storage"
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)
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// No encoder interface exists, so we create one.
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type encoder interface {
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Encode(v interface{}) error
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}
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//// helpers
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// Write http common headers
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func writeCommonHeaders(w http.ResponseWriter, acceptsType string) {
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w.Header().Set("Server", "Minio")
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w.Header().Set("Accept-Ranges", "bytes")
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w.Header().Set("Content-Type", acceptsType)
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}
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// Write error response headers
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func writeErrorResponse(w http.ResponseWriter, response interface{}, acceptsType contentType) []byte {
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var bytesBuffer bytes.Buffer
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var encoder encoder
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// write common headers
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writeCommonHeaders(w, getContentString(acceptsType))
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switch acceptsType {
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case xmlType:
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encoder = xml.NewEncoder(&bytesBuffer)
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case jsonType:
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encoder = json.NewEncoder(&bytesBuffer)
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}
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encoder.Encode(response)
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return bytesBuffer.Bytes()
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}
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// Write object header
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func writeObjectHeaders(w http.ResponseWriter, metadata mstorage.ObjectMetadata) {
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lastModified := metadata.Created.Format(time.RFC1123)
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// common headers
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writeCommonHeaders(w, metadata.ContentType)
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w.Header().Set("ETag", metadata.ETag)
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w.Header().Set("Last-Modified", lastModified)
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w.Header().Set("Content-Length", strconv.FormatInt(metadata.Size, 10))
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w.Header().Set("Connection", "close")
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}
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// Write range object header
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func writeRangeObjectHeaders(w http.ResponseWriter, metadata mstorage.ObjectMetadata, ra string) {
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lastModified := metadata.Created.Format(time.RFC1123)
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// common headers
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writeCommonHeaders(w, metadata.ContentType)
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w.Header().Set("ETag", metadata.ETag)
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w.Header().Set("Last-Modified", lastModified)
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w.Header().Set("Content-Range", ra)
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w.Header().Set("Content-Length", strconv.FormatInt(metadata.Size, 10))
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}
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// Write object header and response
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func writeObjectHeadersAndResponse(w http.ResponseWriter, response interface{}, acceptsType contentType) []byte {
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var bytesBuffer bytes.Buffer
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var encoder encoder
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// common headers
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writeCommonHeaders(w, getContentString(acceptsType))
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switch acceptsType {
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case xmlType:
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encoder = xml.NewEncoder(&bytesBuffer)
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case jsonType:
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encoder = json.NewEncoder(&bytesBuffer)
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}
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w.Header().Set("Connection", "close")
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encoder.Encode(response)
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return bytesBuffer.Bytes()
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}
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