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
|
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package google
import (
"bytes"
"crypto/rand"
"crypto/rsa"
"crypto/x509"
"encoding/base64"
"encoding/json"
"encoding/pem"
"strings"
"sync"
"testing"
"time"
"golang.org/x/oauth2/jws"
)
var (
privateKey *rsa.PrivateKey
jsonKey []byte
once sync.Once
)
func TestJWTAccessTokenSourceFromJSON(t *testing.T) {
setupDummyKey(t)
ts, err := JWTAccessTokenSourceFromJSON(jsonKey, "audience")
if err != nil {
t.Fatalf("JWTAccessTokenSourceFromJSON: %v\nJSON: %s", err, string(jsonKey))
}
tok, err := ts.Token()
if err != nil {
t.Fatalf("Token: %v", err)
}
if got, want := tok.TokenType, "Bearer"; got != want {
t.Errorf("TokenType = %q, want %q", got, want)
}
if got := tok.Expiry; tok.Expiry.Before(time.Now()) {
t.Errorf("Expiry = %v, should not be expired", got)
}
err = jws.Verify(tok.AccessToken, &privateKey.PublicKey)
if err != nil {
t.Errorf("jws.Verify on AccessToken: %v", err)
}
claim, err := jws.Decode(tok.AccessToken)
if err != nil {
t.Fatalf("jws.Decode on AccessToken: %v", err)
}
if got, want := claim.Iss, "gopher@developer.gserviceaccount.com"; got != want {
t.Errorf("Iss = %q, want %q", got, want)
}
if got, want := claim.Sub, "gopher@developer.gserviceaccount.com"; got != want {
t.Errorf("Sub = %q, want %q", got, want)
}
if got, want := claim.Aud, "audience"; got != want {
t.Errorf("Aud = %q, want %q", got, want)
}
// Finally, check the header private key.
parts := strings.Split(tok.AccessToken, ".")
hdrJSON, err := base64.RawURLEncoding.DecodeString(parts[0])
if err != nil {
t.Fatalf("base64 DecodeString: %v\nString: %q", err, parts[0])
}
var hdr jws.Header
if err := json.Unmarshal([]byte(hdrJSON), &hdr); err != nil {
t.Fatalf("json.Unmarshal: %v (%q)", err, hdrJSON)
}
if got, want := hdr.KeyID, "268f54e43a1af97cfc71731688434f45aca15c8b"; got != want {
t.Errorf("Header KeyID = %q, want %q", got, want)
}
}
func TestJWTAccessTokenSourceWithScope(t *testing.T) {
setupDummyKey(t)
ts, err := JWTAccessTokenSourceWithScope(jsonKey, "scope1", "scope2")
if err != nil {
t.Fatalf("JWTAccessTokenSourceWithScope: %v\nJSON: %s", err, string(jsonKey))
}
tok, err := ts.Token()
if err != nil {
t.Fatalf("Token: %v", err)
}
if got, want := tok.TokenType, "Bearer"; got != want {
t.Errorf("TokenType = %q, want %q", got, want)
}
if got := tok.Expiry; tok.Expiry.Before(time.Now()) {
t.Errorf("Expiry = %v, should not be expired", got)
}
err = jws.Verify(tok.AccessToken, &privateKey.PublicKey)
if err != nil {
t.Errorf("jws.Verify on AccessToken: %v", err)
}
claim, err := jws.Decode(tok.AccessToken)
if err != nil {
t.Fatalf("jws.Decode on AccessToken: %v", err)
}
if got, want := claim.Iss, "gopher@developer.gserviceaccount.com"; got != want {
t.Errorf("Iss = %q, want %q", got, want)
}
if got, want := claim.Sub, "gopher@developer.gserviceaccount.com"; got != want {
t.Errorf("Sub = %q, want %q", got, want)
}
if got, want := claim.Scope, "scope1 scope2"; got != want {
t.Errorf("Aud = %q, want %q", got, want)
}
// Finally, check the header private key.
parts := strings.Split(tok.AccessToken, ".")
hdrJSON, err := base64.RawURLEncoding.DecodeString(parts[0])
if err != nil {
t.Fatalf("base64 DecodeString: %v\nString: %q", err, parts[0])
}
var hdr jws.Header
if err := json.Unmarshal([]byte(hdrJSON), &hdr); err != nil {
t.Fatalf("json.Unmarshal: %v (%q)", err, hdrJSON)
}
if got, want := hdr.KeyID, "268f54e43a1af97cfc71731688434f45aca15c8b"; got != want {
t.Errorf("Header KeyID = %q, want %q", got, want)
}
}
func setupDummyKey(t *testing.T) {
once.Do(func() {
// Generate a key we can use in the test data.
pk, err := rsa.GenerateKey(rand.Reader, 2048)
if err != nil {
t.Fatal(err)
}
privateKey = pk
// Encode the key and substitute into our example JSON.
enc := pem.EncodeToMemory(&pem.Block{
Type: "PRIVATE KEY",
Bytes: x509.MarshalPKCS1PrivateKey(privateKey),
})
enc, err = json.Marshal(string(enc))
if err != nil {
t.Fatalf("json.Marshal: %v", err)
}
jsonKey = bytes.Replace(jwtJSONKey, []byte(`"super secret key"`), enc, 1)
})
}
|
