86 lines
1.7 KiB
Go
86 lines
1.7 KiB
Go
package jwtx
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import (
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"allapp/config"
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"context"
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"sync"
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"time"
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"github.com/golang-jwt/jwt/v5"
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)
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// CustomClaims 定义 JWT 自定义 Claims
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type CustomClaims struct {
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UserID int64 `json:"user_id"`
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jwt.RegisteredClaims
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}
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// jwtManager 单例管理
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type jwtManager struct {
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secret string
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tokenExpiry time.Duration
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}
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var (
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manager *jwtManager
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once sync.Once
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)
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// getManager 自动初始化单例
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func getManager() *jwtManager {
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once.Do(func() {
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cfg := config.GetConf().JWT
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manager = &jwtManager{
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secret: cfg.Secret,
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tokenExpiry: cfg.AccessExpiry,
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}
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})
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return manager
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}
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// CreateToken 生成 JWT
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func CreateToken(ctx context.Context, userID int64) (string, error) {
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m := getManager()
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return m.createToken(userID)
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}
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// VerifyToken 校验 token 并返回 claims
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func VerifyToken(ctx context.Context, tokenString string) (*CustomClaims, bool) {
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if tokenString == "" || manager == nil {
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return nil, false
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}
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token, err := jwt.ParseWithClaims(tokenString, &CustomClaims{}, func(token *jwt.Token) (interface{}, error) {
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return []byte(manager.secret), nil
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})
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if err != nil || !token.Valid {
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return nil, false
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}
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claims, ok := token.Claims.(*CustomClaims)
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if !ok {
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return nil, false
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}
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return claims, true
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}
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// createToken 私有方法
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func (j *jwtManager) createToken(userID int64) (string, error) {
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now := time.Now()
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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(now),
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},
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}
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if j.tokenExpiry > 0 {
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claims.ExpiresAt = jwt.NewNumericDate(now.Add(j.tokenExpiry))
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}
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token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
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return token.SignedString([]byte(j.secret))
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}
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