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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;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Threading.Tasks;
using Identity.ExternalClaims.Data;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.Extensions.Logging;
namespace Identity.ExternalClaims.Pages.Account;
public class LoginWith2faModel : PageModel
{
private readonly SignInManager<ApplicationUser> _signInManager;
private readonly ILogger<LoginWith2faModel> _logger;
public LoginWith2faModel(SignInManager<ApplicationUser> signInManager, ILogger<LoginWith2faModel> logger)
{
_signInManager = signInManager;
_logger = logger;
}
[BindProperty]
public InputModel Input { get; set; }
public bool RememberMe { get; set; }
public string ReturnUrl { get; set; }
public class InputModel
{
[Required]
[StringLength(7, ErrorMessage = "The {0} must be at least {2} and at max {1} characters long.", MinimumLength = 6)]
[DataType(DataType.Text)]
[Display(Name = "Authenticator code")]
public string TwoFactorCode { get; set; }
[Display(Name = "Remember this machine")]
public bool RememberMachine { get; set; }
}
public async Task<IActionResult> OnGetAsync(bool rememberMe, string returnUrl = null)
{
// Ensure the user has gone through the username & password screen first
var user = await _signInManager.GetTwoFactorAuthenticationUserAsync();
if (user == null)
{
throw new ApplicationException($"Unable to load two-factor authentication user.");
}
ReturnUrl = returnUrl;
RememberMe = rememberMe;
return Page();
}
public async Task<IActionResult> OnPostAsync(bool rememberMe, string returnUrl = null)
{
if (!ModelState.IsValid)
{
return Page();
}
var user = await _signInManager.GetTwoFactorAuthenticationUserAsync();
if (user == null)
{
throw new ApplicationException($"Unable to load two-factor authentication user.");
}
var authenticatorCode = Input.TwoFactorCode.Replace(" ", string.Empty).Replace("-", string.Empty);
var result = await _signInManager.TwoFactorAuthenticatorSignInAsync(authenticatorCode, rememberMe, Input.RememberMachine);
if (result.Succeeded)
{
_logger.LogInformation("User with ID '{UserId}' logged in with 2fa.", user.Id);
return LocalRedirect(Url.GetLocalUrl(returnUrl));
}
else if (result.IsLockedOut)
{
_logger.LogWarning("User with ID '{UserId}' account locked out.", user.Id);
return RedirectToPage("./Lockout");
}
else
{
_logger.LogWarning("Invalid authenticator code entered for user with ID '{UserId}'.", user.Id);
ModelState.AddModelError(string.Empty, "Invalid authenticator code.");
return Page();
}
}
}
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