This repository has been archived by the owner on Jul 16, 2023. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 0
/
file.go
68 lines (60 loc) · 2.03 KB
/
file.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
package safeincloud
import (
"bytes"
"compress/zlib"
"encoding/base64"
"encoding/xml"
"github.com/pkg/errors"
"io"
)
// File represents a Card.File.
//
// TODO: To make this library useful for creating SafeInCloud XML for importing
// into SIC, a MarshalXML() will need to be created to zlib compress and base64
// encode the results. At the time of this writing, the library is only
// Unmarshalling to be used to move from SafeInCloud to something else.
type File struct {
XMLName xml.Name `xml:"file"`
// Name is the file name as uploaded into SafeInCloud.
Name string `xml:"name,attr"`
// Value is the byte slice of the file's contents.
Value []byte
}
type rawFile struct {
Name string `xml:"name,attr"`
Value string `xml:",chardata"`
}
// UnmarshalXML will base64 decode and zlib decompress the file
// attachments to store in the File.Value []byte slice.
func (f *File) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
var v rawFile
if err := d.DecodeElement(&v, &start); err != nil {
return errors.Wrap(err, "xml.DecodeElement returned an error")
}
f.Name = v.Name // name
decoded, err := base64.StdEncoding.DecodeString(v.Value)
if err != nil {
return errors.Wrap(err, "base64.DecodeString returned an error")
}
br := bytes.NewReader(decoded)
zr, err := zlib.NewReader(br)
if err != nil {
return errors.Wrap(err, "zlib.NewReader returned an error")
}
defer zr.Close()
buf := new(bytes.Buffer)
if _, err := io.Copy(buf, zr); err != nil {
return errors.Wrap(err, "could not zlib read the compressed data")
}
f.Value = buf.Bytes() // value
return nil
}
// MarshalXML is NOT IMPLEMENTED.
//
// TODO: To make this library useful for creating SafeInCloud XML for importing
// into SIC, a MarshalXML() will need to be created to zlib compress and base64
// encode the results. At the time of this writing, the library is only
// Unmarshalling to be used to move from SafeInCloud to something else.
func (f *File) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
return errors.New("not implemented")
}