c# - 标签在自定义实现中未被识别

Question

我正在尝试在 blazor 中制作客户授权代码。根据之前的 stackoverflow 帖子，我构建了以下内容。我的问题是标签仍未注册。我有：

public class MyServerAuthenticationStateProvider : AuthenticationStateProvider
{
    string UserId;
    string Password;
    bool IsAuthenticated = false;
    private ClaimsPrincipal claimsPrincipal;


    public void LoadUser(string _UserId, string _Password)
    {
        UserId = _UserId;
        Password = _Password;
    }


    public override async Task<AuthenticationState> GetAuthenticationStateAsync()
    {
        var userService = new UserService();

        var identity = IsAuthenticated
            ? new ClaimsIdentity(await userService.GetClaims(UserId))
            : new ClaimsIdentity();

        var result = new AuthenticationState(new ClaimsPrincipal(identity));
        return result;
    }
}

和：

 @page "/"
 @using BadgerWatchWeb.Services
 @inject AuthenticationStateProvider AuthenticationStateProvider

<h1>Sup</h1>


<AuthorizeView>
<Authorized>
    <h1>Hello, @context.User.Identity.Name!</h1>
    <p>You can only see this content if you're authenticated.</p>
</Authorized>
<NotAuthorized>
    <h1>Authentication Failure!</h1>
    <p>You're not signed in.</p>
</NotAuthorized>
<Authorizing>
    <h1>Authorizing</h1>
</Authorizing>
</AuthorizeView>


@code {
    [CascadingParameter] Task<AuthenticationState> authenticationStateTask { get; set; }

protected override async Task OnInitializedAsync()
{
    var myStateProvider = AuthenticationStateProvider as MyServerAuthenticationStateProvider;
   myStateProvider.LoadUser("mperry", "testtest");
   await myStateProvider.GetAuthenticationStateAsync();
}

}

我真的需要知道这是否是在 blazoe 中进行自定义身份验证的公认方式。

Answer 1

您的GetAuthenticationStateAsync方法似乎有错误 - 它应该返回一个任务：

public override async Task<AuthenticationState> GetAuthenticationStateAsync()
{
    var userService = new UserService();

    var identity = IsAuthenticated
        ? new ClaimsIdentity(await userService.GetClaims(UserId))
        : new ClaimsIdentity();

    var result = new AuthenticationState(new ClaimsPrincipal(identity));
    return Task.FromResult(result); //<<-- Note: Task.FromResult() here
}

此外，请通读身份验证和授权以获取有关使用 Blazor 进行自定义身份验证和授权的有用信息，例如在ConfigureServices.