83 lines
2.0 KiB
Go
83 lines
2.0 KiB
Go
package jwtx
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import (
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"base-go-v2/internal/config"
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"time"
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"github.com/golang-jwt/jwt/v5"
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)
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// CustomClaims 自定义 payload，可扩展其他信息
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type CustomClaims struct {
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UserID int `json:"user_id"` // 改为 int
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jwt.RegisteredClaims
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}
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// TokenResult 用于返回验证结果
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type TokenResult struct {
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Claims *CustomClaims
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Valid bool
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Expired bool
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}
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// CreateAccessToken 创建 Access Token，只返回 token 和 error
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func CreateAccessToken(userID int) (string, error) {
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return createToken(userID, config.App.JWT.AccessExpiry)
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}
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// CreateRefreshToken 创建 Refresh Token，只返回 token 和 error
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func CreateRefreshToken(userID int) (string, error) {
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return createToken(userID, config.App.JWT.RefreshExpiry)
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}
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// 内部方法，根据过期时间生成 token
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func createToken(userID int, expiry time.Duration) (string, error) {
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claims := &CustomClaims{
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UserID: userID,
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RegisteredClaims: jwt.RegisteredClaims{
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IssuedAt: jwt.NewNumericDate(time.Now()),
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},
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}
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switch {
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case expiry > 0:
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expireAt := time.Now().Add(expiry)
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claims.ExpiresAt = jwt.NewNumericDate(expireAt)
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case expiry == -1:
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claims.ExpiresAt = nil // 永不过期
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default:
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expireAt := time.Now().Add(time.Hour)
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claims.ExpiresAt = jwt.NewNumericDate(expireAt)
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}
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token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
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signed, err := token.SignedString([]byte(config.App.JWT.Secret))
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if err != nil {
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return "", err
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}
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return signed, nil
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}
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// VerifyToken 验证 token 并返回结构化结果
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func VerifyToken(tokenString string) TokenResult {
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result := TokenResult{Valid: false}
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token, _ := jwt.ParseWithClaims(tokenString, &CustomClaims{}, func(token *jwt.Token) (interface{}, error) {
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return []byte(config.App.JWT.Secret), nil
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})
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claims, ok := token.Claims.(*CustomClaims)
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if !ok || !token.Valid {
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return result // token 无效
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}
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result.Claims = claims
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result.Valid = true
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if claims.ExpiresAt != nil && time.Now().After(claims.ExpiresAt.Time) {
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result.Expired = true
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}
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return result
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}
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