Question

我正在.net核心中创建自定义授权。一切工作都很好，但是我想在属性响应中添加本地化器。

下面是我的代码

[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = true, Inherited = true)]
    public class CustomAuthorizeFilters : AuthorizeAttribute, IAuthorizationFilter
    {
        public CustomAuthorizeFilters()
        { }

        public void OnAuthorization(AuthorizationFilterContext context)
        {
            var User = context.HttpContext.User;

            if (!User.Identity.IsAuthenticated)
                return;

            using (var account_help = new AccountHelpers(Startup.ConnectionString))
            {
                var userId = Guid.Parse(new security.AesAlgoridhm().Decrypt(User.Claims.Where(x => x.Type == JwtRegisteredClaimNames.Sid)?.FirstOrDefault().Value));
                ProfileResponse user = new ProfileResponse();

                if (user == null)
                    context.Result = new CustomResultFilters("error_access_token_expired", 401);

                if (!user.EmailConfirmed)
                    context.Result = new CustomResultFilters("bad_response_account_not_confirmed", 400);

                if (!user.Active)
                    context.Result = new CustomResultFilters("bad_response_account_inactive", 400);
            }
        }
    }

我试图像这样在构造函数中传递本地化器，但是当我从控制器传递参数时，它给我的错误是

属性构造函数参数的类型不是有效的属性参数类型

  IStringLocalizer<dynamic> localize { get; set; }
  public CustomAuthorizeFilters(IStringLocalizer<dynamic> localizer = null)
  {
            localize = localizer;
  }

我知道属性仅支持原始数据类型，这就是为什么我也尝试将直接依赖项注入为

context.HttpContext.RequestServices.GetService(typeof(IStringLocalizer<dynamic>));

但这会产生错误，因为无法从对象转换到本地化器。

任何帮助将不胜感激。

Answer 1

您可以使用shared资源并像这样获得本地化程序

Type localizerType = typeof(IStringLocalizer<SharedResource>);
IStringLocalizer localizer = (IStringLocalizer)context.HttpContext.RequestServices.GetService(localizerType );

或者，如果您正在使用每个控制器的资源，则可以从context获取控制器类型并获取控制器本地化程序

public void OnAuthorization(AuthorizationFilterContext context)
{
    //..
    Type localizerType = GetLocalizerType(context);
    IStringLocalizer localizer = (IStringLocalizer)context.HttpContext.RequestServices.GetService(localizerType);
    //..
}

private Type GetLocalizerType(AuthorizationFilterContext context)
{
    var controllerType = (context.ActionDescriptor as ControllerActionDescriptor).ControllerTypeInfo;
    return typeof(IStringLocalizer<>).MakeGenericType(controllerType);
}

没有构造函数的本地化程序依赖性注入

1 个答案: