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