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
|
// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2014-2015 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package systemd
import (
"bytes"
"fmt"
"path/filepath"
"strings"
)
const allowed = `:_.abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789`
// EscapeUnitNamePath works like systemd-escape --path
// FIXME: we could use github.com/coreos/go-systemd/unit/escape.go
// and EscapePath from it.
//
// But thats not in the archive and it won't work with go1.3
func EscapeUnitNamePath(in string) string {
// "" is the same as "/" which is escaped to "-"
// the filepath.Clean will turn "" into "." and make this incorrect
if len(in) == 0 {
return "-"
}
buf := bytes.NewBuffer(nil)
// clean and trim leading/trailing "/"
in = filepath.Clean(in)
in = strings.Trim(in, "/")
// empty strings is "/"
if len(in) == 0 {
in = "/"
}
// leading "." is special
if in[0] == '.' {
fmt.Fprintf(buf, `\x%x`, in[0])
in = in[1:]
}
// replace all special chars
for i := 0; i < len(in); i++ {
c := in[i]
if c == '/' {
buf.WriteByte('-')
} else if strings.IndexByte(allowed, c) >= 0 {
buf.WriteByte(c)
} else {
fmt.Fprintf(buf, `\x%x`, []byte{in[i]})
}
}
return buf.String()
}
|
