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AccountController.cs
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AccountController.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Claims;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.Rendering;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options;
using IdentityDemo.Models;
using IdentityDemo.Models.AccountViewModels;
using IdentityDemo.Services;
namespace IdentityDemo.Controllers
{
[Authorize]
[Route("[controller]/[action]")]
public class AccountController : Controller
{
private readonly UserManager<ApplicationUser> _userManager;
private readonly SignInManager<ApplicationUser> _signInManager;
private readonly IEmailSender _emailSender;
private readonly ILogger _logger;
public AccountController(
UserManager<ApplicationUser> userManager,
SignInManager<ApplicationUser> signInManager,
IEmailSender emailSender,
ILogger<AccountController> logger)
{
_userManager = userManager;
_signInManager = signInManager;
_emailSender = emailSender;
_logger = logger;
}
[TempData]
public string ErrorMessage { get; set; }
[HttpGet]
[AllowAnonymous]
public async Task<IActionResult> Login(string returnUrl = null)
{
// Clear the existing external cookie to ensure a clean login process
await HttpContext.SignOutAsync(IdentityConstants.ExternalScheme);
ViewData["ReturnUrl"] = returnUrl;
return View();
}
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<IActionResult> Login(LoginViewModel model, string returnUrl = null)
{
ViewData["ReturnUrl"] = returnUrl;
if (ModelState.IsValid)
{
// This does not count login failures towards account lockout
// To enable password failures to trigger account lockout,
// set lockoutOnFailure: true
var result = await _signInManager.PasswordSignInAsync(model.Email, model.Password, model.RememberMe, lockoutOnFailure: false);
if (result.Succeeded)
{
_logger.LogInformation("User logged in.");
return RedirectToLocal(returnUrl);
}
if (result.RequiresTwoFactor)
{
return RedirectToAction(nameof(LoginWith2fa), new { returnUrl, model.RememberMe });
}
if (result.IsLockedOut)
{
_logger.LogWarning("User account locked out.");
return RedirectToAction(nameof(Lockout));
}
else
{
ModelState.AddModelError(string.Empty, "Invalid login attempt.");
return View(model);
}
}
// If execution got this far, something failed, redisplay the form.
return View(model);
}
[HttpGet]
[AllowAnonymous]
public async Task<IActionResult> LoginWith2fa(bool rememberMe, string returnUrl = null)
{
// Ensure that the user has gone through the username & password screen first
var user = await _signInManager.GetTwoFactorAuthenticationUserAsync();
if (user == null)
{
throw new ApplicationException($"Unable to load two-factor authentication user.");
}
var model = new LoginWith2faViewModel { RememberMe = rememberMe };
ViewData["ReturnUrl"] = returnUrl;
return View(model);
}
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<IActionResult> LoginWith2fa(LoginWith2faViewModel model, bool rememberMe, string returnUrl = null)
{
if (!ModelState.IsValid)
{
return View(model);
}
var user = await _signInManager.GetTwoFactorAuthenticationUserAsync();
if (user == null)
{
throw new ApplicationException($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
}
var authenticatorCode = model.TwoFactorCode.Replace(" ", string.Empty).Replace("-", string.Empty);
var result = await _signInManager.TwoFactorAuthenticatorSignInAsync(authenticatorCode, rememberMe, model.RememberMachine);
if (result.Succeeded)
{
_logger.LogInformation("User with ID {UserId} logged in with 2fa.", user.Id);
return RedirectToLocal(returnUrl);
}
else if (result.IsLockedOut)
{
_logger.LogWarning("User with ID {UserId} account locked out.", user.Id);
return RedirectToAction(nameof(Lockout));
}
else
{
_logger.LogWarning("Invalid authenticator code entered for user with ID {UserId}.", user.Id);
ModelState.AddModelError(string.Empty, "Invalid authenticator code.");
return View();
}
}
[HttpGet]
[AllowAnonymous]
public async Task<IActionResult> LoginWithRecoveryCode(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($"Unable to load two-factor authentication user.");
}
ViewData["ReturnUrl"] = returnUrl;
return View();
}
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<IActionResult> LoginWithRecoveryCode(LoginWithRecoveryCodeViewModel model, string returnUrl = null)
{
if (!ModelState.IsValid)
{
return View(model);
}
var user = await _signInManager.GetTwoFactorAuthenticationUserAsync();
if (user == null)
{
throw new ApplicationException($"Unable to load two-factor authentication user.");
}
var recoveryCode = model.RecoveryCode.Replace(" ", string.Empty);
var result = await _signInManager.TwoFactorRecoveryCodeSignInAsync(recoveryCode);
if (result.Succeeded)
{
_logger.LogInformation("User with ID {UserId} logged in with a recovery code.", user.Id);
return RedirectToLocal(returnUrl);
}
if (result.IsLockedOut)
{
_logger.LogWarning("User with ID {UserId} account locked out.", user.Id);
return RedirectToAction(nameof(Lockout));
}
else
{
_logger.LogWarning("Invalid recovery code entered for user with ID {UserId}", user.Id);
ModelState.AddModelError(string.Empty, "Invalid recovery code entered.");
return View();
}
}
[HttpGet]
[AllowAnonymous]
public IActionResult Lockout()
{
return View();
}
[HttpGet]
[AllowAnonymous]
public IActionResult Register(string returnUrl = null)
{
ViewData["ReturnUrl"] = returnUrl;
return View();
}
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<IActionResult> Register(RegisterViewModel model, string returnUrl = null)
{
ViewData["ReturnUrl"] = returnUrl;
if (ModelState.IsValid)
{
var user = new ApplicationUser { UserName = model.Email, Email = model.Email };
var result = await _userManager.CreateAsync(user, model.Password);
if (result.Succeeded)
{
_logger.LogInformation("User created a new account with password.");
var code = await _userManager.GenerateEmailConfirmationTokenAsync(user);
var callbackUrl = Url.EmailConfirmationLink(user.Id, code, Request.Scheme);
await _emailSender.SendEmailConfirmationAsync(model.Email, callbackUrl);
await _signInManager.SignInAsync(user, isPersistent: false);
_logger.LogInformation("User created a new account with password.");
return RedirectToLocal(returnUrl);
}
AddErrors(result);
}
// If execution got this far, something failed, redisplay the form.
return View(model);
}
[HttpPost]
[ValidateAntiForgeryToken]
public async Task<IActionResult> Logout()
{
await _signInManager.SignOutAsync();
_logger.LogInformation("User logged out.");
return RedirectToAction(nameof(HomeController.Index), "Home");
}
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public IActionResult ExternalLogin(string provider, string returnUrl = null)
{
// Request a redirect to the external login provider.
var redirectUrl = Url.Action(nameof(ExternalLoginCallback), "Account", new { returnUrl });
var properties = _signInManager.ConfigureExternalAuthenticationProperties(provider, redirectUrl);
return Challenge(properties, provider);
}
[HttpGet]
[AllowAnonymous]
public async Task<IActionResult> ExternalLoginCallback(string returnUrl = null, string remoteError = null)
{
if (remoteError != null)
{
ErrorMessage = $"Error from external provider: {remoteError}";
return RedirectToAction(nameof(Login));
}
var info = await _signInManager.GetExternalLoginInfoAsync();
if (info == null)
{
return RedirectToAction(nameof(Login));
}
// Sign in the user with this external login provider if the user already has a login.
var result = await _signInManager.ExternalLoginSignInAsync(info.LoginProvider, info.ProviderKey, isPersistent: false, bypassTwoFactor: true);
if (result.Succeeded)
{
_logger.LogInformation("User logged in with {Name} provider.", info.LoginProvider);
return RedirectToLocal(returnUrl);
}
if (result.IsLockedOut)
{
return RedirectToAction(nameof(Lockout));
}
else
{
// If the user does not have an account, then ask the user to create an account.
ViewData["ReturnUrl"] = returnUrl;
ViewData["LoginProvider"] = info.LoginProvider;
var email = info.Principal.FindFirstValue(ClaimTypes.Email);
return View("ExternalLogin", new ExternalLoginViewModel { Email = email });
}
}
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<IActionResult> ExternalLoginConfirmation(ExternalLoginViewModel model, string returnUrl = null)
{
if (ModelState.IsValid)
{
// Get the information about the user from the external login provider
var info = await _signInManager.GetExternalLoginInfoAsync();
if (info == null)
{
throw new ApplicationException("Error loading external login information during confirmation.");
}
var user = new ApplicationUser { UserName = model.Email, Email = model.Email };
var result = await _userManager.CreateAsync(user);
if (result.Succeeded)
{
result = await _userManager.AddLoginAsync(user, info);
if (result.Succeeded)
{
await _signInManager.SignInAsync(user, isPersistent: false);
_logger.LogInformation("User created an account using {Name} provider.", info.LoginProvider);
return RedirectToLocal(returnUrl);
}
}
AddErrors(result);
}
ViewData["ReturnUrl"] = returnUrl;
return View(nameof(ExternalLogin), model);
}
[HttpGet]
[AllowAnonymous]
public async Task<IActionResult> ConfirmEmail(string userId, string code)
{
if (userId == null || code == null)
{
return RedirectToAction(nameof(HomeController.Index), "Home");
}
var user = await _userManager.FindByIdAsync(userId);
if (user == null)
{
throw new ApplicationException($"Unable to load user with ID '{userId}'.");
}
var result = await _userManager.ConfirmEmailAsync(user, code);
return View(result.Succeeded ? "ConfirmEmail" : "Error");
}
[HttpGet]
[AllowAnonymous]
public IActionResult ForgotPassword()
{
return View();
}
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<IActionResult> ForgotPassword(ForgotPasswordViewModel model)
{
if (ModelState.IsValid)
{
var user = await _userManager.FindByEmailAsync(model.Email);
if (user == null || !(await _userManager.IsEmailConfirmedAsync(user)))
{
// Don't reveal that the user does not exist or is not confirmed
return RedirectToAction(nameof(ForgotPasswordConfirmation));
}
// For more information on how to enable account confirmation and password reset please
// visit https://go.microsoft.com/fwlink/?LinkID=532713
var code = await _userManager.GeneratePasswordResetTokenAsync(user);
var callbackUrl = Url.ResetPasswordCallbackLink(user.Id, code, Request.Scheme);
await _emailSender.SendEmailAsync(model.Email, "Reset Password",
$"Please reset your password by clicking here: <a href='{callbackUrl}'>link</a>");
return RedirectToAction(nameof(ForgotPasswordConfirmation));
}
// If execution got this far, something failed, redisplay the form.
return View(model);
}
[HttpGet]
[AllowAnonymous]
public IActionResult ForgotPasswordConfirmation()
{
return View();
}
[HttpGet]
[AllowAnonymous]
public IActionResult ResetPassword(string code = null)
{
if (code == null)
{
throw new ApplicationException("A code must be supplied for password reset.");
}
var model = new ResetPasswordViewModel { Code = code };
return View(model);
}
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<IActionResult> ResetPassword(ResetPasswordViewModel model)
{
if (!ModelState.IsValid)
{
return View(model);
}
var user = await _userManager.FindByEmailAsync(model.Email);
if (user == null)
{
// Don't reveal that the user does not exist
return RedirectToAction(nameof(ResetPasswordConfirmation));
}
var result = await _userManager.ResetPasswordAsync(user, model.Code, model.Password);
if (result.Succeeded)
{
return RedirectToAction(nameof(ResetPasswordConfirmation));
}
AddErrors(result);
return View();
}
[HttpGet]
[AllowAnonymous]
public IActionResult ResetPasswordConfirmation()
{
return View();
}
[HttpGet]
public IActionResult AccessDenied()
{
return View();
}
#region Helpers
private void AddErrors(IdentityResult result)
{
foreach (var error in result.Errors)
{
ModelState.AddModelError(string.Empty, error.Description);
}
}
private IActionResult RedirectToLocal(string returnUrl)
{
if (Url.IsLocalUrl(returnUrl))
{
return Redirect(returnUrl);
}
else
{
return RedirectToAction(nameof(HomeController.Index), "Home");
}
}
#endregion
}
}