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package jwt
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import (
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"git.noahlan.cn/noahlan/ntool/nrandom"
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"github.com/golang-jwt/jwt/v5"
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"strconv"
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"time"
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)
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type (
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ClaimStrings = jwt.ClaimStrings
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Claims = jwt.Claims
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SigningMethod = jwt.SigningMethod
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)
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type (
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Option struct {
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Key string
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Val any
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}
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Token struct {
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AccessToken string
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ExpiresAt int64
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}
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)
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func WithOption(key string, val any) Option {
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return Option{key, val}
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}
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func WithID(id string) Option {
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return WithOption("jti", id)
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}
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func WithRandID() Option {
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return WithID(nrandom.SnowflakeIdStr())
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}
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func WithAudience(val jwt.ClaimStrings) Option {
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return WithOption("aud", val)
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}
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func NewJwtToken(secretKey string, uid, expiresIn int64, opts ...Option) (Token, error) {
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iat := time.Now().Unix()
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claims := make(jwt.MapClaims)
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claims["iat"] = iat // 签发时间
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claims["exp"] = iat + expiresIn // 过期时间
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claims["iss"] = "lan6995@gmail.com" // 签发者
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claims["sub"] = strconv.FormatInt(uid, 10) // subject 面向用户
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//claims["aud"] = "" // 接收jwt的
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claims["nbf"] = iat // 在xx时间之前，该jwt不可用
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claims[KeyUserId] = uid // 自定义字段 uid
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for _, opt := range opts {
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claims[opt.Key] = opt.Val
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}
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token := jwt.New(jwt.SigningMethodHS256)
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token.Claims = claims
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jwtStr, err := token.SignedString([]byte(secretKey))
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result := Token{
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AccessToken: jwtStr,
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ExpiresAt: iat + expiresIn,
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}
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if err != nil {
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return result, err
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}
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return result, nil
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}
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