Question

我试图在SignalR Hub的OnConnected方法中使用我的自定义原则。我尝试了以下方法：

Context.Request.GetHttpContext（）。用户
HttpContext.Current.User
Thread.CurrentPrincipal中

但没有运气..

它不断抛出错误：

Unable to cast object of type 'System.Web.Security.RolePrincipal' to type 'MVCSample.Biz.Profile.MyCustomPrincipal'.

在SignalR集线器中是否无法访问自定义原则？

谢谢！

这是我的中心代码：

[Authorize]
public class MBHub : Hub
{
    private readonly ILifetimeScope _hubLifetimeScope;
    private readonly IUserService _userService;        

    public MBHub(ILifetimeScope lifetimeScope)
    {
        _hubLifetimeScope = lifetimeScope.BeginLifetimeScope("AutofacWebRequest");
        _userService = _hubLifetimeScope.Resolve<IUserService>();
    }

    public override Task OnConnected()
    {
        //var idn = (MVCSample.Biz.Profile.MyCustomIdentity)Thread.CurrentPrincipal; <--- THIS DID NOT WORK

        //var idn = (MVCSample.Biz.Profile.MyCustomIdentity)HttpContext.Current.User; <--- THIS DID NOT WORK

        System.Web.HttpContextBase httpContext = Context.Request.GetHttpContext();

        var idn = (MVCSample.Biz.Profile.MyCustomIdentity)httpContext.User.Identity; // <--- THIS IS MY FINAL TRY, DID NOT WORK

        string userName = idn.Name;
        string city = idn.City;
        string connectionId = Context.ConnectionId;

        _userService.AddConnection(connectionId, userName, city, Context.Request.Headers["User-Agent"]);

        return base.OnConnected();
    }


    protected override void Dispose(bool disposing)
    {
        // Dipose the hub lifetime scope when the hub is disposed.
        if (disposing && _hubLifetimeScope != null)
            _hubLifetimeScope.Dispose();

        base.Dispose(disposing);
    }

}

Answer 1

您应该构建自己的授权属性

With ws2.Range("N" & Found.Row)
    .Value = .Value + ws1.Cells(rw, "J").Value
End with

然后将此属性应用于您的Hub。

如果您想了解更多相关信息，我在博文中提到了here以及更多代码示例

SignalR Hub中的自定义原理

1 个答案: