package jwt import ( "context" "git.diulo.com/mogfee/kit/middleware" ) type JwtOption func(o *options) func WithJwtKey(jwtKey string) JwtOption { return func(o *options) { o.jwtKey = jwtKey } } func WithFromKey(fromKey string) JwtOption { return func(o *options) { o.fromKey = fromKey } } func WithValidate(val JwtValidate) JwtOption { return func(o *options) { o.validate = val } } type options struct { jwtKey string fromKey string //cookie:token header:key validate JwtValidate } type JwtValidate interface { //GetToken 获取token GetToken(ctx context.Context, key string) (tokenStr string) //ParseToken 解析token获取用户信息 ParseToken(ctx context.Context, key string, token string) (*UserInfo, error) //Validate 校验权限 Validate(ctx context.Context, permission string, permissions []string) error } func JWT(opts ...JwtOption) middleware.Middleware { var cfg = &options{ jwtKey: "JssLx22bjQwnyqby", fromKey: "header:token", validate: &JwtDefault{}, } for _, o := range opts { o(cfg) } return func(handler middleware.Handler) middleware.Handler { return func(ctx context.Context, a any) (any, error) { //1. 解析token //2. 获取用户信息 //3. 校验权限 //4. 设置ctx authKey := FromAuthKeyContext(ctx) needAuth := FromNeedAuthContext(ctx) // 解析token tokenStr := cfg.validate.GetToken(ctx, cfg.fromKey) if tokenStr == "" && needAuth { return nil, errorx.Unauthorized("NO_TOKEN", "") } if tokenStr != "" { if err := func() error { userInfo, err := cfg.validate.ParseToken(ctx, cfg.jwtKey, tokenStr) if err != nil { return err } if needAuth && userInfo.UserId == "" { return errorx.Unauthorized("TOKEN_BAD", "") } if authKey != "" { if err = cfg.validate.Validate(ctx, authKey, userInfo.Permissions); err != nil { return err } } if userInfo.UserId != "" { ctx = SetUserContext(ctx, userInfo) } return nil }(); err != nil { if needAuth { return nil, err } } } return handler(ctx, a) } } }