-
Notifications
You must be signed in to change notification settings - Fork 0
/
auth.go
56 lines (45 loc) · 1.14 KB
/
auth.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
package auth
import (
"errors"
"time"
jwt "github.com/dgrijalva/jwt-go"
)
// GenerateToken generates a jwt token
func (j *JwtWrapper) GenerateToken(username string) (signedToken string, err error) {
claims := &JwtClaim{
Username: username,
StandardClaims: jwt.StandardClaims{
ExpiresAt: time.Now().Local().Add(time.Hour * time.Duration(j.ExpirationHours)).Unix(),
Issuer: j.Issuer,
},
}
token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
signedToken, err = token.SignedString([]byte(j.SecretKey))
if err != nil {
return "", err
}
return signedToken, nil
}
//ValidateToken validates the jwt token
func (j *JwtWrapper) ValidateToken(signedToken string) (claims *JwtClaim, err error) {
token, err := jwt.ParseWithClaims(
signedToken,
&JwtClaim{},
func(token *jwt.Token) (interface{}, error) {
return []byte(j.SecretKey), nil
},
)
if err != nil {
return nil, err
}
claims, ok := token.Claims.(*JwtClaim)
if !ok {
err = errors.New("Couldn't parse claims")
return nil, err
}
if claims.ExpiresAt < time.Now().Local().Unix() {
err = errors.New("JWT is expired")
return nil, err
}
return claims, nil
}