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
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
package keygen
import (
"os"
"path/filepath"
"testing"
)
func TestNewSSHKeyPair(t *testing.T) {
dir := t.TempDir()
_, err := NewWithWrite(dir, "test", []byte(""), "rsa")
if err != nil {
t.Errorf("error creating SSH key pair: %v", err)
}
}
func TestGenerateEd25519Keys(t *testing.T) {
// Create temp directory for keys
dir := t.TempDir()
k := &SSHKeyPair{
KeyDir: dir,
Filename: "test",
}
t.Run("test generate SSH keys", func(t *testing.T) {
err := k.generateEd25519Keys()
if err != nil {
t.Errorf("error creating SSH key pair: %v", err)
}
// TODO: is there a good way to validate these? Lengths seem to vary a bit,
// so far now we're just asserting that the keys indeed exist.
if len(k.PrivateKeyPEM) == 0 {
t.Error("error creating SSH private key PEM; key is 0 bytes")
}
if len(k.PublicKey) == 0 {
t.Error("error creating SSH public key; key is 0 bytes")
}
})
t.Run("test write SSH keys", func(t *testing.T) {
k.KeyDir = filepath.Join(dir, "ssh1")
if err := k.prepFilesystem(); err != nil {
t.Errorf("filesystem error: %v\n", err)
}
if err := k.WriteKeys(); err != nil {
t.Errorf("error writing SSH keys to %s: %v", k.KeyDir, err)
}
if testing.Verbose() {
t.Logf("Wrote keys to %s", k.KeyDir)
}
})
t.Run("test not overwriting existing keys", func(t *testing.T) {
k.KeyDir = filepath.Join(dir, "ssh2")
if err := k.prepFilesystem(); err != nil {
t.Errorf("filesystem error: %v\n", err)
}
// Private key
filePath := filepath.Join(k.KeyDir, k.Filename)
if !createEmptyFile(t, filePath) {
return
}
if err := k.WriteKeys(); err == nil {
t.Errorf("we wrote the private key over an existing file, but we were not supposed to")
}
if err := os.Remove(filePath); err != nil {
t.Errorf("could not remove file %s", filePath)
}
// Public key
if !createEmptyFile(t, filePath+".pub") {
return
}
if err := k.WriteKeys(); err == nil {
t.Errorf("we wrote the public key over an existing file, but we were not supposed to")
}
})
}
// touchTestFile is a utility function we're using in testing.
func createEmptyFile(t *testing.T, path string) (ok bool) {
dir := filepath.Dir(path)
if err := os.MkdirAll(dir, 0700); err != nil {
t.Errorf("could not create directory %s: %v", dir, err)
return false
}
f, err := os.Create(path)
if err != nil {
t.Errorf("could not create file %s", path)
return false
}
if err := f.Close(); err != nil {
t.Errorf("could not close file: %v", err)
return false
}
if testing.Verbose() {
t.Logf("created dummy file at %s", path)
}
return true
}
|
