forked from journeymidnight/yig
/
api-headers.go
71 lines (62 loc) · 2.25 KB
/
api-headers.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
/*
* Minio Cloud 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 api
import (
"bytes"
"encoding/xml"
"net/http"
"strconv"
. "github.com/journeymidnight/yig/api/datatype"
meta "github.com/journeymidnight/yig/meta/types"
)
// Encodes the response headers into XML format.
func EncodeResponse(response interface{}) []byte {
var bytesBuffer bytes.Buffer
bytesBuffer.WriteString(xml.Header)
e := xml.NewEncoder(&bytesBuffer)
e.Encode(response)
return bytesBuffer.Bytes()
}
// Write object header
func SetObjectHeaders(w http.ResponseWriter, object *meta.Object, contentRange *HttpRange) {
// set object-related metadata headers
lastModified := object.LastModifiedTime.UTC().Format(http.TimeFormat)
w.Header().Set("Last-Modified", lastModified)
w.Header().Set("Content-Type", object.ContentType)
if object.Etag != "" {
// w.Header().Set("ETag", "\""+object.Etag+"\"")
w.Header()["ETag"] = []string{"\"" + object.Etag + "\""}
}
for key, val := range object.CustomAttributes {
w.Header().Set(key, val)
}
//default cache-control is no-store
if _, ok := object.CustomAttributes["Cache-Control"]; !ok {
w.Header().Set("Cache-Control", "no-store")
}
w.Header().Set("X-Amz-Object-Type", object.ObjectTypeToString())
w.Header().Set("Content-Length", strconv.FormatInt(object.Size, 10))
if object.Type == meta.ObjectTypeAppendable {
w.Header().Set("X-Amz-Next-Append-Position", strconv.FormatInt(object.Size, 10))
}
// for providing ranged content
if contentRange != nil && contentRange.OffsetBegin > -1 {
// Override content-length
w.Header().Set("Content-Length", strconv.FormatInt(contentRange.GetLength(), 10))
w.Header().Set("Content-Range", contentRange.String())
w.WriteHeader(http.StatusPartialContent)
}
}