代码示例:
public class CustomAuthenticationStateProvider : IAuthenticationStateProvider
{
private readonly IHttpContextAccessor _httpContextAccessor;
public CustomAuthenticationStateProvider(IHttpContextAccessor httpContextAccessor)
{
_httpContextAccessor = httpContextAccessor;
}
public async Task GetAuthenticationStateAsync()
{
var user = _httpContextAccessor.HttpContext.User;
if (user.Identity != null && user.Identity.IsAuthenticated)
{
var claims = new[]
{
new Claim(ClaimTypes.Name, user.Identity.Name)
};
var identity = new ClaimsIdentity(claims, "Custom authentication type");
var principal = new ClaimsPrincipal(identity);
return new AuthenticationState(principal);
}
return new AuthenticationState(new ClaimsPrincipal());
}
}
// 在Startup.cs文件中ConfigureServices方法中注册自定义的认证状态提供程序
services.AddScoped();
// 在需要使用认证状态的组件中,使用[@inject]注入IAuthenticationStateProvider,然后调用GetAuthenticationStateAsync()方法获取认证状态。
@inject AuthenticationStateProvider AuthenticationStateProvider
Hello, @context.User.Identity.Name!
You are not authenticated.