是否可以使用 ASP.NET Core Identity 启用手机或电子邮件作为登录用户名？

Question

IdentityUser

提供的

Identity

模型具有

UserName

、

PhoneNumber

和

Email

属性。可以使用其中任何一个登录吗？

Answer 1

是的，可以，但是你应该修改脚手架身份登录页面。

您可以编写新方法来使用用户管理器检查输入值的用户，然后获取用户名，然后您可以使用该用户名和密码登录。

更多详情，您可以参考以下示例：

页码：

@page
@model LoginModel

@{
    ViewData["Title"] = "Log in";
}

<h1>@ViewData["Title"]</h1>
<div class="row">
    <div class="col-md-4">
        <section>
            <form id="account" method="post">
                <h2>Use a local account to log in.</h2>
                <hr />
                <div asp-validation-summary="ModelOnly" class="text-danger" role="alert"></div>
                <div class="form-floating mb-3">
                    <input asp-for="Input.LoginCredential" class="form-control" autocomplete="username" aria-required="true" placeholder="[email protected]" />
                    <label asp-for="Input.LoginCredential" class="form-label">Email</label>
                    <span asp-validation-for="Input.LoginCredential" class="text-danger"></span>
                </div>
                <div class="form-floating mb-3">

                    Select login type
                    <select asp-for="Input.LoginType" class="form-control" placeholder="Select which type">
                        <option value="UserName">UserName</option>
                        <option value="Email">Email</option>
                        <option value="PhoneNumber">PhoneNumber</option>
                    </select>


                </div>
                <div class="form-floating mb-3">
                   
                    <input asp-for="Input.Password" class="form-control" autocomplete="current-password" aria-required="true" placeholder="password" />
                    <label asp-for="Input.Password" class="form-label">Password</label>
                    <span asp-validation-for="Input.Password" class="text-danger"></span>
                </div>
                <div class="checkbox mb-3">
                    <label asp-for="Input.RememberMe" class="form-label">
                        <input class="form-check-input" asp-for="Input.RememberMe" />
                        @Html.DisplayNameFor(m => m.Input.RememberMe)
                    </label>
                </div>
                <div>
                    <button id="login-submit" type="submit" class="w-100 btn btn-lg btn-primary">Log in</button>
                </div>
                <div>
                    <p>
                        <a id="forgot-password" asp-page="./ForgotPassword">Forgot your password?</a>
                    </p>
                    <p>
                        <a asp-page="./Register" asp-route-returnUrl="@Model.ReturnUrl">Register as a new user</a>
                    </p>
                    <p>
                        <a id="resend-confirmation" asp-page="./ResendEmailConfirmation">Resend email confirmation</a>
                    </p>
                </div>
            </form>
        </section>
    </div>
    <div class="col-md-6 col-md-offset-2">
        <section>
            <h3>Use another service to log in.</h3>
            <hr />
            @{
                if ((Model.ExternalLogins?.Count ?? 0) == 0)
                {
                    <div>
                        <p>
                            There are no external authentication services configured. See this <a href="https://go.microsoft.com/fwlink/?LinkID=532715">article
                            about setting up this ASP.NET application to support logging in via external services</a>.
                        </p>
                    </div>
                }
                else
                {
                    <form id="external-account" asp-page="./ExternalLogin" asp-route-returnUrl="@Model.ReturnUrl" method="post" class="form-horizontal">
                        <div>
                            <p>
                                @foreach (var provider in Model.ExternalLogins!)
                                {
                                    <button type="submit" class="btn btn-primary" name="provider" value="@provider.Name" title="Log in using your @provider.DisplayName account">@provider.DisplayName</button>
                                }
                            </p>
                        </div>
                    </form>
                }
            }
        </section>
    </div>
</div>

@section Scripts {
    <partial name="_ValidationScriptsPartial" />
}

代码：

// 根据一项或多项协议获得 .NET 基金会许可。 // .NET 基金会根据 MIT 许可证将此文件授权给您。 #可空禁用

using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Identity.UI.Services;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.Extensions.Logging;
using Microsoft.VisualStudio.Web.CodeGenerators.Mvc.Templates.BlazorIdentity.Pages.Manage;
using Microsoft.EntityFrameworkCore;

namespace WebApplicationRazorIdentity.Areas.Identity.Pages.Account
{
    public class LoginModel : PageModel
    {
        private readonly SignInManager<IdentityUser> _signInManager;
        private readonly UserManager<IdentityUser> _userManager;    
        private readonly ILogger<LoginModel> _logger;

        public LoginModel(SignInManager<IdentityUser> signInManager, ILogger<LoginModel> logger, UserManager<IdentityUser> userManager)
        {
            _signInManager = signInManager;
            _logger = logger;
            _userManager = userManager;
        }

        /// <summary>
        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
        ///     directly from your code. This API may change or be removed in future releases.
        /// </summary>
        [BindProperty]
        public InputModel Input { get; set; }

        /// <summary>
        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
        ///     directly from your code. This API may change or be removed in future releases.
        /// </summary>
        public IList<AuthenticationScheme> ExternalLogins { get; set; }

        /// <summary>
        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
        ///     directly from your code. This API may change or be removed in future releases.
        /// </summary>
        public string ReturnUrl { get; set; }

        /// <summary>
        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
        ///     directly from your code. This API may change or be removed in future releases.
        /// </summary>
        [TempData]
        public string ErrorMessage { get; set; }

        /// <summary>
        ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
        ///     directly from your code. This API may change or be removed in future releases.
        /// </summary>
        public class InputModel
        {
            /// <summary>
            ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
            ///     directly from your code. This API may change or be removed in future releases.
            /// </summary>
            [Required]
            //[EmailAddress]
            public string LoginCredential { get; set; }

            [Required]
            public string LoginType { get; set; }

            /// <summary>
            ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
            ///     directly from your code. This API may change or be removed in future releases.
            /// </summary>
            [Required]
            [DataType(DataType.Password)]
            public string Password { get; set; }

            /// <summary>
            ///     This API supports the ASP.NET Core Identity default UI infrastructure and is not intended to be used
            ///     directly from your code. This API may change or be removed in future releases.
            /// </summary>
            [Display(Name = "Remember me?")]
            public bool RememberMe { get; set; }
        }

        public async Task OnGetAsync(string returnUrl = null)
        {
            if (!string.IsNullOrEmpty(ErrorMessage))
            {
                ModelState.AddModelError(string.Empty, ErrorMessage);
            }

            returnUrl ??= Url.Content("~/");

            // Clear the existing external cookie to ensure a clean login process
            await HttpContext.SignOutAsync(IdentityConstants.ExternalScheme);

            ExternalLogins = (await _signInManager.GetExternalAuthenticationSchemesAsync()).ToList();

            ReturnUrl = returnUrl;
        }

        public async Task<IActionResult> OnPostAsync(string returnUrl = null)
        {
            returnUrl ??= Url.Content("~/");

            ExternalLogins = (await _signInManager.GetExternalAuthenticationSchemesAsync()).ToList();

            if (ModelState.IsValid)
            {
                // This doesn't count login failures towards account lockout
                // To enable password failures to trigger account lockout, set lockoutOnFailure: true

 
                var user = await FindUserByLoginCredential(Input.LoginType, Input.LoginCredential);

                var result = await _signInManager.PasswordSignInAsync(user.UserName, Input.Password, Input.RememberMe, lockoutOnFailure: false);
                if (result.Succeeded)
                {
                    _logger.LogInformation("User logged in.");
                    return LocalRedirect(returnUrl);
                }
                if (result.RequiresTwoFactor)
                {
                    return RedirectToPage("./LoginWith2fa", new { ReturnUrl = returnUrl, RememberMe = Input.RememberMe });
                }
                if (result.IsLockedOut)
                {
                    _logger.LogWarning("User account locked out.");
                    return RedirectToPage("./Lockout");
                }
                else
                {
                    ModelState.AddModelError(string.Empty, "Invalid login attempt.");
                    return Page();
                }
            }

            // If we got this far, something failed, redisplay form
            return Page();
        }

  
       

        // Helper method to find the user based on the login credential
        private async Task<IdentityUser> FindUserByLoginCredential(string loginType, string loginCredential)
        {
            switch (loginType)
            {
                case "UserName":
                    return await _userManager.FindByNameAsync(loginCredential);
                case "Email":
                    return await _userManager.FindByEmailAsync(loginCredential);
                case "PhoneNumber":
                    return await _userManager.Users.Where(item => item.PhoneNumber == loginCredential).FirstOrDefaultAsync();
                default:
                    return null;
            }
        }
    }
}

结果：