C# 修改标识或添加声明

C# Modifying Identity or Add a Claim

应用程序是 Blazor Server .NET Core 5.0

我正在使用 .NET Core 的身份系统,但我 运行 遇到了问题。我想将此人的名字与身份一起存储,以便我可以轻松调用它。

目前我有一个 class 覆盖基本身份:

public class ApplicationUser : IdentityUser
{
    public ApplicationUser() : base() { }

    [StringLength(100)]
    public string FirstName { get; set; }
    [StringLength(100)]
    public string LastName { get; set; }
}

我的 startup.cs 有:

        services.AddDefaultIdentity<ApplicationUser>(options => {
            options.SignIn.RequireConfirmedAccount = true;
            }
        )

在我看来,在寻找身份时,应该强制程序的智能感知理解 ApplicationUser 是默认值 class。

但是,当我尝试调用时:

    var authState = await AuthenticationStateProvider.GetAuthenticationStateAsync();
    var user = authState.User;

它只有 returns“IdentityUser”数据,而不是我自定义的 ApplicationUser class。

我是否缺少 AuthenticationStateProvider 返回的内容或我缺少的类型转换?

此外,如果这完全不正确,我应该对 Claims 执行此操作吗?如果是这样,我无法找到有效使用 Blazor Server 声明的具体方法。

public class ApplicationUser : IdentityUser
{
    public string FirstName { get; set; }
    public string LastName { get; set; }
}

在程序包管理器控制台中执行:

  1. 添加迁移 CreateAppUser
  2. 更新数据库

将值插入在用户中创建的 FirstName 和 LastName table

创建一个 class 名为:ApplicationUserClaimsTransformation

ApplicationUserClaimsTransformation.cs

 using Microsoft.AspNetCore.Authentication;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using WebApplication3.Data;
using WebApplication3.Models;
using System.Security.Claims;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Components.Authorization;

 public class ApplicationUserClaimsTransformation : IClaimsTransformation
    {
        private readonly UserManager<ApplicationUser> _userManager;
        public ApplicationUserClaimsTransformation(UserManager<ApplicationUser> userManager)
        {
            _userManager = userManager;
        }

        
        public async Task<ClaimsPrincipal> TransformAsync(ClaimsPrincipal principal)
        {
            var identity = principal.Identities.FirstOrDefault(c => c.IsAuthenticated);
            if (identity == null) return principal;

            var user = await _userManager.GetUserAsync(principal);
            if (user == null) return principal;

            // Add or replace identity.Claims.

          
             if (!principal.HasClaim(c => c.Type == ClaimTypes.GivenName))
        {
            identity.AddClaim(new Claim(ClaimTypes.GivenName, user.FirstName));
       
        }
        if (!principal.HasClaim(c => c.Type == ClaimTypes.Surname))
        {
          identity.AddClaim(new Claim(ClaimTypes.Surname, user.LastName));
        }

            return new ClaimsPrincipal(identity);
        }
    }

Startup.ConfigureServices

 services.AddScoped<IClaimsTransformation, 
           ApplicationUserClaimsTransformation>();

Index.razor

@page "/"

@inject AuthenticationStateProvider AuthState
@using System.Security
@using System.Security.Claims

@foreach(var c in user.Claims)
{
    <div>@c.Type:  @c.Value</div>
}
@code
    {

    private ClaimsPrincipal user;

 protected override async Task OnInitializedAsync()
    {
        var x = await AuthState.GetAuthenticationStateAsync();
        user =  x.User;
        await base.OnInitializedAsync();
    }
    }

注意:您应该将 IdentityUser 名称更改为 ApplicationUser 启动 class、LogOut.cshtml 文件、_LoginPartial.cshtml 文件和 在 ApplicationDbContext 的定义中 class:

public class ApplicationDbContext : IdentityDbContext<ApplicationUser>