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
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
package ui
import (
"crypto/ed25519"
"crypto/rand"
"encoding/base64"
"reflect"
"strings"
"testing"
"aegis/internal/cryptokit"
"aegis/internal/identity"
"filippo.io/age"
)
func TestNormalizeGroups(t *testing.T) {
got, err := normalizeGroups(" comp.lang.go, sci.crypt,comp.lang.go ")
if err != nil {
t.Fatal(err)
}
want := []string{"comp.lang.go", "sci.crypt"}
if !reflect.DeepEqual(got, want) {
t.Fatalf("normalizeGroups() = %v, want %v", got, want)
}
}
func TestNormalizeGroupsRejectsInjection(t *testing.T) {
if _, err := normalizeGroups("comp.lang.go\r\nPOST"); err == nil {
t.Fatal("normalizeGroups() accepted protocol injection")
}
}
func TestFormatCount(t *testing.T) {
for _, test := range []struct {
value int64
want string
}{{0, "0"}, {999, "999"}, {1000, "1 000"}, {1234567, "1 234 567"}} {
if got := formatCount(test.value); got != test.want {
t.Errorf("formatCount(%d) = %q, want %q", test.value, got, test.want)
}
}
}
func TestBuildTextArticleUsesMIMEAndEncodesUTF8Headers(t *testing.T) {
article, err := buildTextArticle(
[]string{"alt.test"},
"Élodie <elodie@example.org>",
"Caffè e privacy",
"Corpo UTF-8: café\nseconda riga",
)
if err != nil {
t.Fatal(err)
}
for _, want := range []string{
"MIME-Version: 1.0\r\n",
"Content-Type: text/plain; charset=UTF-8\r\n",
"Content-Transfer-Encoding: 8bit\r\n",
"Face: ",
"Subject: =?UTF-8?q?Caff=C3=A8_e_privacy?=\r\n",
"From: =?UTF-8?q?=C3=89lodie?= <elodie@example.org>\r\n",
"Corpo UTF-8: café\r\nseconda riga",
} {
if !strings.Contains(article, want) {
t.Fatalf("article missing %q:\n%s", want, article)
}
}
for _, line := range strings.Split(article, "\r\n") {
if strings.Contains(line, "\n") {
t.Fatalf("article contains bare LF: %q", line)
}
}
}
func TestBuildTextArticleRejectsInvalidBody(t *testing.T) {
if _, err := buildTextArticle([]string{"alt.test"}, "reader@example.org", "Test", string([]byte{'x', 0xff})); err == nil {
t.Fatal("buildTextArticle accepted invalid UTF-8")
}
}
func TestBuildArticleWithoutVFaceIsAllowed(t *testing.T) {
article, err := buildArticleWithIdentityHeaders(
[]string{"alt.test"}, "reader@example.org", "Plain post", "body", nil,
articleCryptoOptions{Mode: "Plain"},
)
if err != nil {
t.Fatal(err)
}
if strings.Contains(article, "X-VFace-") || strings.Contains(article, "X-Ed25519-Pub:") {
t.Fatalf("plain article unexpectedly contains VFace headers:\n%s", article)
}
}
func TestPrepareArticleCryptoSignsCanonicalBody(t *testing.T) {
public, private, err := ed25519.GenerateKey(rand.Reader)
if err != nil {
t.Fatal(err)
}
privateSeed := base64.StdEncoding.EncodeToString(private.Seed())
headers, contentType, transferEncoding, wireBody, err := prepareArticleCrypto(
"hello\r\nworld",
"Sign with Ed25519",
articleCryptoOptions{SigningKey: privateSeed, PublicKeyURL: "https://keys.example.invalid/aegis.pub"},
)
if err != nil {
t.Fatal(err)
}
if contentType != "text/plain; charset=UTF-8" || transferEncoding != "8bit" {
t.Fatalf("unexpected MIME metadata: %q, %q", contentType, transferEncoding)
}
joined := strings.Join(headers, "\r\n")
if !strings.Contains(joined, "X-Aegis-Public-Key-URL: https://keys.example.invalid/aegis.pub") {
t.Fatalf("missing public-key URL: %s", joined)
}
const signaturePrefix = "X-Aegis-Signature: ed25519; "
var signature string
for _, header := range headers {
if strings.HasPrefix(header, signaturePrefix) {
signature = strings.TrimPrefix(header, signaturePrefix)
}
}
if signature == "" {
t.Fatal("missing Ed25519 signature")
}
if err := cryptokit.VerifyEd25519([]byte(wireBody), signature, base64.StdEncoding.EncodeToString(public)); err != nil {
t.Fatal(err)
}
}
func TestPrepareArticleCryptoEncryptsAndSigns(t *testing.T) {
identity, err := age.GenerateX25519Identity()
if err != nil {
t.Fatal(err)
}
_, private, err := ed25519.GenerateKey(rand.Reader)
if err != nil {
t.Fatal(err)
}
headers, contentType, transferEncoding, wireBody, err := prepareArticleCrypto(
"secret body",
"Encrypt with age and sign",
articleCryptoOptions{
EncryptionKey: identity.Recipient().String(),
SigningKey: base64.StdEncoding.EncodeToString(private.Seed()),
},
)
if err != nil {
t.Fatal(err)
}
if contentType != "application/vnd.aegis.age" || transferEncoding != "7bit" {
t.Fatalf("unexpected encrypted MIME metadata: %q, %q", contentType, transferEncoding)
}
if !strings.Contains(strings.Join(headers, "\r\n"), "X-Aegis-Encryption: age") {
t.Fatal("missing age encryption header")
}
plaintext, err := cryptokit.DecryptAge([]byte(strings.ReplaceAll(wireBody, "\r\n", "\n")), identity.String())
if err != nil {
t.Fatal(err)
}
if string(plaintext) != "secret body" {
t.Fatalf("decrypted body = %q", plaintext)
}
}
func TestBuildTextArticleWithVFaceIncludesMandatoryIdentityHeaders(t *testing.T) {
if _, err := identity.FindCLI(); err != nil {
t.Skip(err)
}
public, _, err := ed25519.GenerateKey(rand.Reader)
if err != nil {
t.Fatal(err)
}
publicKey := base64.StdEncoding.EncodeToString(public)
profile, err := identity.GenerateVFace("pseudonym", "reader@example.org", publicKey)
if err != nil {
t.Fatal(err)
}
article, err := buildTextArticleWithVFace(
[]string{"alt.test"},
"pseudonym <reader@example.org>",
"VFace test",
"body",
profile,
articleCryptoOptions{Mode: "Plain", ExpectedPublicKey: profile.PublicKey},
)
if err != nil {
t.Fatal(err)
}
for _, want := range []string{
"X-VFace-Version: 1\r\n",
"X-Ed25519-Pub: " + publicKey + "\r\n",
"Identity-Hash: " + profile.IdentityHash + "\r\n",
"X-VFace-Hash: sha256:" + profile.IdentityHash + "\r\n",
"X-VFace-PNG-SHA256: " + profile.PNGHash + "\r\n",
"X-VFace-Verify: " + identity.VFaceVerificationURL + "\r\n",
} {
if !strings.Contains(article, want) {
t.Fatalf("article missing %q:\n%s", want, article)
}
}
}
|
