forked from sourcegraph/appdash
-
Notifications
You must be signed in to change notification settings - Fork 0
/
httputil.go
56 lines (48 loc) · 1.08 KB
/
httputil.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
// Copyright 2013 The Go Authors. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file or at
// https://developers.google.com/open-source/licenses/bsd.
package traceapp
import (
"bytes"
"net/http"
"strconv"
)
type responseBuffer struct {
buf bytes.Buffer
Status int
header http.Header
}
func (rb *responseBuffer) Write(p []byte) (int, error) {
return rb.buf.Write(p)
}
func (rb *responseBuffer) WriteHeader(status int) {
rb.Status = status
}
func (rb *responseBuffer) Header() http.Header {
if rb.header == nil {
rb.header = make(http.Header)
}
return rb.header
}
func (rb *responseBuffer) ContentLength() int {
return rb.buf.Len()
}
func (rb *responseBuffer) WriteTo(w http.ResponseWriter) error {
for k, v := range rb.header {
w.Header()[k] = v
}
if l := rb.ContentLength(); l > 0 {
w.Header().Set("Content-Length", strconv.Itoa(l))
}
if rb.Status != 0 {
w.WriteHeader(rb.Status)
}
if rb.buf.Len() > 0 {
if _, err := w.Write(rb.buf.Bytes()); err != nil {
return err
}
}
return nil
}