Mercurial > gemma

comparison auth/encode.go @ 215:f345edb409b2

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Made serialisation and deserialisation of sessions more robust (fixed a small bug on the way).
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Tue, 24 Jul 2018 11:09:18 +0200
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214:da24df80c25d 215:f345edb409b2
1 package auth
2
3 import (
4 "encoding/binary"
5 "io"
6 )
7
8 type binReader struct {
9 r io.Reader
10 err error
11 }
12
13 func (r *binReader) read(x interface{}) {
14 if r.err == nil {
15 r.err = binary.Read(r.r, binary.BigEndian, x)
16 }
17 }
18
19 func (r *binReader) readString(s *string) {
20 if r.err != nil {
21 return
22 }
23 var l uint32
24 if r.err = binary.Read(r.r, binary.BigEndian, &l); r.err != nil {
25 return
26 }
27 b := make([]byte, l)
28 if r.err = binary.Read(r.r, binary.BigEndian, b); r.err != nil {
29 return
30 }
31 *s = string(b)
32 }
33
34 type binWriter struct {
35 w io.Writer
36 err error
37 }
38
39 func (w *binWriter) write(x interface{}) {
40 if w.err == nil {
41 w.err = binary.Write(w.w, binary.BigEndian, x)
42 }
43 }
44
45 func (w *binWriter) writeString(s string) {
46 if w.err == nil {
47 w.err = binary.Write(w.w, binary.BigEndian, uint32(len(s)))
48 }
49 if w.err == nil {
50 w.err = binary.Write(w.w, binary.BigEndian, []byte(s))
51 }
52 }