服务器端服务器中的会话超时重定向

时间:2020-09-17 11:41:11

标签: asp.net-core blazor blazor-server-side

因此,看来Blazor当前不支持使用滑动过期方案通过不活动来检查身份验证超时。

我要实现的目的是在用户拥有会话时间后将其重定向到登录页面。我可以想象它必须是RevalidatingIdentityAuthenticationStateProvider中的某个内容,如果会话超时,我需要检测网站上的活动并在登录页面上重定向用户,但不确定如何实现?

1 个答案:

答案 0 :(得分:0)

您实际上不需要使用

RevalidatingIdentityAuthenticationStateProvider

您的app.razor只需看起来像这样的代码:

<CascadingAuthenticationState> 
    <Router AppAssembly="@typeof(Program).Assembly">
        <Found Context="routeData">
            <AuthorizeRouteView RouteData="@routeData" 
                     DefaultLayout="@typeof(MainLayout)">
                <NotAuthorized>
                    **<RedirectToLogin> </RedirectToLogin>**
                </NotAuthorized>
                <Authorizing>
                    <h1>Authentication in progress</h1>
                    <p>Only visible while authentication is in progress.</p>
                </Authorizing>
            </AuthorizeRouteView>
        </Found>
        <NotFound>
           ....
        </NotFound>
    </Router>
</CascadingAuthenticationState>

确保RedirectToLogin组件重定向用户OnAfterRender回调 应该看起来像这样

 [CascadingParameter]
    private Task<AuthenticationState> AuthenticationStateTask { get; set; }

    protected override async Task OnAfterRenderAsync(bool firstRender)
      {
        var authenticationState = await AuthenticationStateTask;
        try
        {
            if (authenticationState?.User?.Identity is null || !authenticationState.User.Identity.IsAuthenticated)
                {
                    var returnUrl = Navigation.ToBaseRelativePath(Navigation.Uri);

                    if (string.IsNullOrWhiteSpace(returnUrl))
                        Navigation.NavigateTo("/Identity/Account/Login", true);
                    else
                        Navigation.NavigateTo($"/Identity/Account/Login?returnUrl=~/{returnUrl}", true);
                }
        }
        catch (Exception e)
        {

            
        }
       
    }