Mephimeow
53 lines
1.1 KiB
Go
53 lines
1.1 KiB
Go
package auth
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import (
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"fmt"
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"time"
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"github.com/golang-jwt/jwt/v5"
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)
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type Claims struct {
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UserID string `json:"user_id"`
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Email string `json:"email"`
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jwt.RegisteredClaims
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}
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func GenerateToken(userID, email string, secret []byte, expiration time.Duration) (string, error) {
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claims := Claims{
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UserID: userID,
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Email: email,
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RegisteredClaims: jwt.RegisteredClaims{
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Subject: userID,
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ExpiresAt: jwt.NewNumericDate(time.Now().Add(expiration)),
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IssuedAt: jwt.NewNumericDate(time.Now()),
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},
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}
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token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
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return token.SignedString(secret)
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}
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func ValidateToken(tokenString string, secret []byte) (*Claims, error) {
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token, err := jwt.ParseWithClaims(
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tokenString,
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&Claims{},
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func(t *jwt.Token) (interface{}, error) {
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if _, ok := t.Method.(*jwt.SigningMethodHMAC); !ok {
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return nil, fmt.Errorf("unexpected signing method: %v", t.Header["alg"])
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}
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return secret, nil
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},
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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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claims, ok := token.Claims.(*Claims)
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if !ok || !token.Valid {
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return nil, fmt.Errorf("invalid token")
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}
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return claims, nil
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}
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