Question

我是身份和MVC的新手，我正在尝试创建一个MVC应用程序作为我的第一个项目之一。

我已经能够关注few tutorials并成功向ApplicationUser添加了其他属性：IdentityUser类

public class ApplicationUser
    : IdentityUser<string, ApplicationUserLogin,
    ApplicationUserRole, ApplicationUserClaim>
{
    [Required]
    [Display(Name = "UserName")]
    [StringLength(50)]
    public string Handle { get; set; }

    [StringLength(100, ErrorMessage = "Your {0} can be at most {1} characters long.")]
    [Display(Name = "First Name")]
    public string FirstName { get; set; }

    [StringLength(100, ErrorMessage = "Your {0} can be at most {1} characters long.")]
    [Display(Name = "Last Name")]
    public string LastName { get; set; }

    [Required]
    [Display(Name = "User Creation Date")]
    public DateTime UserCreationDate { get; set; }

    public ApplicationUser()
    {
        this.Id = Guid.NewGuid().ToString();

        // Add any custom User properties/code here
    }

我的问题是：

我看到电子邮件设置在App_Start.IdentityConfig.cs中需要一个唯一的电子邮件，有没有办法将其设置为需要像Handle这样的独特自定义属性？

    var manager = new ApplicationUserManager(new UserStore<ApplicationUser, ApplicationRole, string, ApplicationUserLogin, ApplicationUserRole, ApplicationUserClaim>(context.Get<ApplicationDbContext>()));
    // Configure validation logic for usernames
    manager.UserValidator = new UserValidator<ApplicationUser>(manager)
    {
        AllowOnlyAlphanumericUserNames = false,
        RequireUniqueEmail = true
    };

在Views.Shared._LoginPartial.cshtml的部分视图中，它显示了使用User.Identity.GetUserName（）登录应用程序的人的用户名/电子邮件是否可以引用我的一个自定义属性而是诸如FirstName或Handle？

@using Microsoft.AspNet.Identity

@if (Request.IsAuthenticated)
{
    using (Html.BeginForm("LogOff", "Account", FormMethod.Post, new { id = "logoutForm", @class = "navbar-right" }))
    {
    @Html.AntiForgeryToken()

    <ul class="nav navbar-nav navbar-right">
        <li>
            @Html.ActionLink("Hello " + User.Identity.GetUserName() + "!", "Index", "Manage", routeValues: null, htmlAttributes: new { title = "Manage" })
        </li>
        <li><a href="javascript:document.getElementById('logoutForm').submit()">Log off</a></li>
    </ul>
    }
}
else
{
    <ul class="nav navbar-nav navbar-right">
        <li>@Html.ActionLink("Register", "Register", "Account", routeValues: null, htmlAttributes: new { id = "registerLink" })</li>
        <li>@Html.ActionLink("Log in", "Login", "Account", routeValues: null, htmlAttributes: new { id = "loginLink" })</li>
    </ul>
}

Answer 1

此处已涵盖实施自定义UserValidator：How can customize Asp.net Identity 2 username already taken validation message?

不是为每个显示句柄的页面请求访问数据库，而是在登录期间添加声明。

定义您自己的声明：

public static class CustomClaimTypes
{
    public const string Handle = "http://schemas.xmlsoap.org/ws/2014/03/mystuff/claims/handle";
}

在登录期间，设置声明：

private async Task SignInAsync(ApplicationUser user, bool isPersistent, string password = null)
{
    AuthenticationManager.SignOut(DefaultAuthenticationTypes.ExternalCookie);

    var identity = await UserManager.CreateIdentityAsync(user, DefaultAuthenticationTypes.ApplicationCookie);

    //Get the handle and add the claim to the identity.
    var handle = GetTheHandle();
    identity.AddClaim(new Claim(CustomClaimTypes.Handle, handle);

    AuthenticationManager.SignIn(new AuthenticationProperties() { IsPersistent = isPersistent }, identity);
}

然后，通过扩展方法，您可以像GetUserName()一样阅读它：

public static class IdentityExtensions
{
    public static string GetHandle(this IIdentity identity)
    {
        if (identity == null)
            return null;

        return (identity as ClaimsIdentity).FirstOrNull(CustomClaimTypes.Handle);
    }

    internal static string FirstOrNull(this ClaimsIdentity identity, string claimType)
    {
        var val = identity.FindFirst(claimType);

        return val == null ? null : val.Value;
    }
}

最后，在您看来：

@User.Identity.GetHandle()

Answer 2

1）我会从微软的UserValidator创建你自己的UserValidator继承并处理你的额外字段。

<强>更新

2）你可以制作自己的扩展方法来获得你添加的额外字段。

public static string GetSomething(this IIdentity identity)
{
    if (identity.IsAuthenticated)
    {
        var userStore = new UserStore<ApplicationUser>(new Context());
        var manager = new UserManager<ApplicationUser>(userStore);
        var currentUser = manager.FindById(identity.GetUserId());
        return something = currentUser.something;                
    }
    return null;
}

关于MVC和身份的两个问题

2 个答案: