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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System.ComponentModel.DataAnnotations;
using System.Diagnostics.CodeAnalysis;
using System.Linq;
using System.Text;
using System.Text.Encodings.Web;
using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.AspNetCore.WebUtilities;
using Microsoft.Extensions.Logging;
namespace Microsoft.AspNetCore.Identity.UI.V5.Pages.Account.Internal;
/// <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>
[AllowAnonymous]
[IdentityDefaultUI(typeof(RegisterModel<>))]
public abstract class RegisterModel : PageModel
{
/// <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; } = default!;
/// <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>
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 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]
[Display(Name = "Email")]
public string Email { get; set; } = default!;
/// <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]
[StringLength(100, ErrorMessage = "The {0} must be at least {2} and at max {1} characters long.", MinimumLength = 6)]
[DataType(DataType.Password)]
[Display(Name = "Password")]
public string Password { get; set; } = default!;
/// <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>
[DataType(DataType.Password)]
[Display(Name = "Confirm password")]
[Compare("Password", ErrorMessage = "The password and confirmation password do not match.")]
public string? ConfirmPassword { 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 virtual Task OnGetAsync([StringSyntax(StringSyntaxAttribute.Uri)] string? returnUrl = null) => throw new NotImplementedException();
/// <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 virtual Task<IActionResult> OnPostAsync([StringSyntax(StringSyntaxAttribute.Uri)] string? returnUrl = null) => throw new NotImplementedException();
}
internal sealed class RegisterModel<TUser> : RegisterModel where TUser : class
{
private readonly SignInManager<TUser> _signInManager;
private readonly UserManager<TUser> _userManager;
private readonly IUserStore<TUser> _userStore;
private readonly IUserEmailStore<TUser> _emailStore;
private readonly ILogger<RegisterModel> _logger;
private readonly IEmailSender<TUser> _emailSender;
public RegisterModel(
UserManager<TUser> userManager,
IUserStore<TUser> userStore,
SignInManager<TUser> signInManager,
ILogger<RegisterModel> logger,
IEmailSender<TUser> emailSender)
{
_userManager = userManager;
_userStore = userStore;
_emailStore = GetEmailStore();
_signInManager = signInManager;
_logger = logger;
_emailSender = emailSender;
}
public override async Task OnGetAsync(string? returnUrl = null)
{
ReturnUrl = returnUrl;
ExternalLogins = (await _signInManager.GetExternalAuthenticationSchemesAsync()).ToList();
}
public override async Task<IActionResult> OnPostAsync(string? returnUrl = null)
{
returnUrl ??= Url.Content("~/");
ExternalLogins = (await _signInManager.GetExternalAuthenticationSchemesAsync()).ToList();
if (ModelState.IsValid)
{
var user = CreateUser();
await _userStore.SetUserNameAsync(user, Input.Email, CancellationToken.None);
await _emailStore.SetEmailAsync(user, Input.Email, CancellationToken.None);
var result = await _userManager.CreateAsync(user, Input.Password);
if (result.Succeeded)
{
_logger.LogInformation(LoggerEventIds.UserCreated, "User created a new account with password.");
var userId = await _userManager.GetUserIdAsync(user);
var code = await _userManager.GenerateEmailConfirmationTokenAsync(user);
code = WebEncoders.Base64UrlEncode(Encoding.UTF8.GetBytes(code));
var callbackUrl = Url.Page(
"/Account/ConfirmEmail",
pageHandler: null,
values: new { area = "Identity", userId = userId, code = code, returnUrl = returnUrl },
protocol: Request.Scheme)!;
await _emailSender.SendConfirmationLinkAsync(user, Input.Email, HtmlEncoder.Default.Encode(callbackUrl));
if (_userManager.Options.SignIn.RequireConfirmedAccount)
{
return RedirectToPage("RegisterConfirmation", new { email = Input.Email, returnUrl = returnUrl });
}
else
{
await _signInManager.SignInAsync(user, isPersistent: false);
return LocalRedirect(returnUrl);
}
}
foreach (var error in result.Errors)
{
ModelState.AddModelError(string.Empty, error.Description);
}
}
// If we got this far, something failed, redisplay form
return Page();
}
private TUser CreateUser()
{
try
{
return Activator.CreateInstance<TUser>();
}
catch
{
throw new InvalidOperationException($"Can't create an instance of '{nameof(TUser)}'. " +
$"Ensure that '{nameof(TUser)}' is not an abstract class and has a parameterless constructor, or alternatively " +
$"override the register page in /Areas/Identity/Pages/Account/Register.cshtml");
}
}
private IUserEmailStore<TUser> GetEmailStore()
{
if (!_userManager.SupportsUserEmail)
{
throw new NotSupportedException("The default UI requires a user store with email support.");
}
return (IUserEmailStore<TUser>)_userStore;
}
}
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