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jwt.go
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jwt.go
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package util
import (
"gorobbs/package/setting"
"time"
"github.com/dgrijalva/jwt-go"
)
var jwtSecret = []byte(setting.ServerSetting.JwtSecret)
type Claims struct {
Name string `json:"name"`
Password string `json:"password"`
jwt.StandardClaims
}
func GenerateToken(username, password string) (string, time.Time, error) {
nowTime := time.Now()
expireTime := nowTime.Add(3 * time.Hour)
claims := Claims{
username,
password,
jwt.StandardClaims{
ExpiresAt: expireTime.Unix(),
Issuer: "langongsi",
},
}
tokenClaims := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
token, err := tokenClaims.SignedString(jwtSecret)
return token, expireTime, err
}
// 解析token
func ParseToken(token string) (*Claims, error) {
tokenClaims, err := jwt.ParseWithClaims(token, &Claims{}, func(token *jwt.Token) (interface{}, error) {
return jwtSecret, nil
})
if tokenClaims != nil {
if claims, ok := tokenClaims.Claims.(*Claims); ok && tokenClaims.Valid {
return claims, nil
}
}
return nil, err
}
// 刷新token 拿老的token换新的token
func RefreshToken(token string) (string, time.Time, error) {
tokenClaims, _ := jwt.ParseWithClaims(token, &Claims{}, func(token *jwt.Token) (interface{}, error) {
return jwtSecret, nil
})
if tokenClaims != nil {
if claims, ok := tokenClaims.Claims.(*Claims); ok && tokenClaims.Valid {
name := claims.Name
password := claims.Password
return GenerateToken(name, password)
}
}
return "", time.Now(), nil
}