52 lines
1.2 KiB
Go
52 lines
1.2 KiB
Go
package utils
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import (
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"time"
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"github.com/golang-jwt/jwt/v5"
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)
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type JWTManager struct {
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secret []byte
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ttl time.Duration
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}
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func NewJWTManager(secret string, ttl time.Duration) *JWTManager {
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return &JWTManager{secret: []byte(secret), ttl: ttl}
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}
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type Claims struct {
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UserID uint `json:"userId"`
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Username string `json:"username"`
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Role string `json:"role"`
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jwt.RegisteredClaims
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}
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func (j *JWTManager) Generate(userID uint, username, role string) (string, error) {
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now := time.Now()
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token := jwt.NewWithClaims(jwt.SigningMethodHS256, Claims{
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UserID: userID,
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Username: username,
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Role: role,
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RegisteredClaims: jwt.RegisteredClaims{
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IssuedAt: jwt.NewNumericDate(now),
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ExpiresAt: jwt.NewNumericDate(now.Add(j.ttl)),
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ID: username + now.Format("20060102150405"),
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},
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})
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return token.SignedString(j.secret)
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}
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func (j *JWTManager) Parse(tokenString string) (*Claims, error) {
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token, err := jwt.ParseWithClaims(tokenString, &Claims{}, func(token *jwt.Token) (interface{}, error) {
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return j.secret, nil
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})
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if err != nil {
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return nil, err
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}
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if claims, ok := token.Claims.(*Claims); ok && token.Valid {
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return claims, nil
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}
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return nil, jwt.ErrTokenInvalidClaims
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}
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