/
token.go
113 lines (99 loc) · 2.74 KB
/
token.go
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
package auth
import (
"encoding/base64"
"fmt"
"net/http"
"strings"
"github.com/cnrancher/edge-api-server/pkg/util"
"github.com/sirupsen/logrus"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
const (
CookieName = "R_SESS"
AuthHeaderName = "Authorization"
AuthValuePrefix = "Bearer"
BasicAuthPrefix = "Basic"
usernameLabel = "authn.management.edge.io/token-username"
EdgeAPILabel = "authn.management.edge.io/edge-api"
TokenNamespace = "kube-system"
nameLength = 8
tokenSecretKeyName = "Key"
)
type TokenSecretData struct {
Issuer string `json:"issuer,omitempty"`
ExpiresAt string `json:"expiresAt,omitempty"`
IssuedAt string `json:"issuedAt,omitempty"`
Subject string `json:"subject,omitempty"`
Key string `json:"key,omitempty"`
}
func SplitTokenParts(tokenID string) (string, string) {
parts := strings.Split(tokenID, ":")
if len(parts) != 2 {
return parts[0], ""
}
return parts[0], parts[1]
}
func GetTokenAuthFromRequest(req *http.Request) string {
var tokenAuthValue string
authHeader := req.Header.Get(AuthHeaderName)
authHeader = strings.TrimSpace(authHeader)
if authHeader != "" {
parts := strings.SplitN(authHeader, " ", 2)
if strings.EqualFold(parts[0], AuthValuePrefix) {
if len(parts) > 1 {
tokenAuthValue = strings.TrimSpace(parts[1])
}
} else if strings.EqualFold(parts[0], BasicAuthPrefix) {
if len(parts) > 1 {
base64Value := strings.TrimSpace(parts[1])
data, err := base64.URLEncoding.DecodeString(base64Value)
if err != nil {
logrus.Errorf("Error %v parsing %v header", err, AuthHeaderName)
} else {
tokenAuthValue = string(data)
}
}
}
} else {
cookie, err := req.Cookie(CookieName)
if err == nil {
tokenAuthValue = cookie.Value
}
}
return tokenAuthValue
}
func GetJWTSecretTokenName(token string) (string, error) {
var name = ""
parts, err := SplitJWTTokenParts(token)
if err != nil {
return name, err
}
name = strings.Trim(strings.ToLower(parts[2]), "_")
name = name[len(name)-nameLength:]
return fmt.Sprintf("jwt-%s-secret", name), nil
}
func SplitJWTTokenParts(token string) ([]string, error) {
parts := strings.Split(token, ".")
if len(parts) != 3 {
return parts, fmt.Errorf("invalid token, expected length 3 but only got %d", len(parts))
}
return parts, nil
}
func createTokenSecret(token string, secretToken TokenSecretData) (corev1.Secret, error) {
name, err := GetJWTSecretTokenName(token)
if err != nil {
return corev1.Secret{}, err
}
strData := util.StructToStrMap(&secretToken, 4)
return corev1.Secret{
ObjectMeta: metav1.ObjectMeta{
Name: name,
Labels: map[string]string{
usernameLabel: secretToken.Subject,
EdgeAPILabel: "true",
},
},
StringData: strData,
}, nil
}