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token.go
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token.go
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package sgcjwt
import (
"errors"
"time"
"github.com/dgrijalva/jwt-go"
)
//EncryToken 创建jwt-token
func EncryToken(user TokenUserInput, secretKey string) (r string, err error) {
claims := SgcClaims{
ID: user.ID,
Username: user.Username,
Password: user.Password,
StandardClaims: jwt.StandardClaims{
NotBefore: int64(time.Now().Unix()), // 签名生效时间
ExpiresAt: int64(time.Now().Unix() + user.Expire), // 过期时间 一小时
},
}
token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
r, err = token.SignedString([]byte(secretKey))
return
}
//DecrypToken 解析jwt-token
func DecrypToken(token string, secretKey string) (claims *SgcClaims, err error) {
t, err := jwt.ParseWithClaims(token, &SgcClaims{}, func(jt *jwt.Token) (interface{}, error) {
return []byte(secretKey), nil
})
if err != nil {
if ve, ok := err.(*jwt.ValidationError); ok {
if ve.Errors&jwt.ValidationErrorMalformed != 0 {
err = errors.New("无效token")
} else if ve.Errors&jwt.ValidationErrorExpired != 0 {
err = errors.New("token已过期")
} else if ve.Errors&jwt.ValidationErrorNotValidYet != 0 {
err = errors.New("token未激活") //还没有到达token开始时间,一般用不到
} else {
err = errors.New("token未激活")
}
return
}
}
claims, ok := t.Claims.(*SgcClaims)
if !ok || !t.Valid {
err = errors.New("无效token")
}
return
}