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
|
package nametransform
import (
"strings"
"testing"
"github.com/rfjakob/gocryptfs/v2/internal/contentenc"
"github.com/rfjakob/gocryptfs/v2/internal/cryptocore"
)
func TestIsLongName(t *testing.T) {
n := "gocryptfs.longname.LkwUdALvV_ANnzQN6ZZMYnxxfARD3IeZWCKnxGJjYmU=.name"
if NameType(n) != LongNameFilename {
t.Errorf("False negative")
}
n = "gocryptfs.longname.LkwUdALvV_ANnzQN6ZZMYnxxfARD3IeZWCKnxGJjYmU="
if NameType(n) != LongNameContent {
t.Errorf("False negative")
}
n = "LkwUdALvV_ANnzQN6ZZMYnxxfARD3IeZWCKnxGJjYmU="
if NameType(n) != LongNameNone {
t.Errorf("False positive")
}
}
func TestRemoveLongNameSuffix(t *testing.T) {
filename := "gocryptfs.longname.LkwUdALvV_ANnzQN6ZZMYnxxfARD3IeZWCKnxGJjYmU=.name"
content := "gocryptfs.longname.LkwUdALvV_ANnzQN6ZZMYnxxfARD3IeZWCKnxGJjYmU="
if RemoveLongNameSuffix(filename) != content {
t.Error(".name suffix not removed")
}
}
func newLognamesTestInstance(longNameMax uint8) *NameTransform {
key := make([]byte, cryptocore.KeyLen)
cCore := cryptocore.New(key, cryptocore.BackendGoGCM, contentenc.DefaultIVBits, true)
return New(cCore.EMECipher, true, longNameMax, true, nil, false)
}
func TestLongNameMax(t *testing.T) {
iv := make([]byte, 16)
for max := 0; max <= NameMax; max++ {
n := newLognamesTestInstance(uint8(max))
if max == 0 {
// effective value is 255
max = NameMax
}
for l := 0; l <= NameMax+10; l++ {
name := strings.Repeat("x", l)
out, err := n.EncryptAndHashName(name, iv)
if l == 0 || l > NameMax {
if err == nil {
t.Errorf("should have rejected a name of length %d, but did not", l)
}
continue
}
cName, _ := n.EncryptName(name, iv)
rawLen := len(cName)
want := LongNameNone
if rawLen > max {
want = LongNameContent
}
have := NameType(out)
if have != want {
t.Errorf("l=%d max=%d: wanted %v, got %v\nname=%q\nout=%q", l, max, want, have, name, out)
}
}
}
}
|
