CreateUserAsync fails when registering external logins - asp.net

I am working on a single page application using the asp.net mvc 5 template and registering external logins (google in this instance) fails with a validation exception - "The UserId field is required."
the code in question:
// POST api/Account/RegisterExternal [OverrideAuthentication]
[HostAuthentication(DefaultAuthenticationTypes.ExternalBearer)]
[Route("RegisterExternal")]
public async Task<IHttpActionResult> RegisterExternal(RegisterExternalBindingModel model)
{
try
{
if (!ModelState.IsValid)
{
return BadRequest(ModelState);
}
ExternalLoginData externalLogin = ExternalLoginData.FromIdentity(User.Identity as ClaimsIdentity);
if (externalLogin == null)
{
return InternalServerError();
}
IdentityUser user = new IdentityUser//(model.UserName);
{
UserName = model.UserName
};
user.Logins.Add(new IdentityUserLogin
{
LoginProvider = externalLogin.LoginProvider,
ProviderKey = externalLogin.ProviderKey
});
IdentityResult result = await UserManager.CreateAsync(user);
IHttpActionResult errorResult = GetErrorResult(result);
if (errorResult != null)
{
return errorResult;
}
return Ok();
}
catch (Exception exception)
{
throw;
}
}
I appreciate the help

The fix was simple but I find it strange it that the code generated by the template doesn't work out of the box. The IdentityUserLogin object has a UserID property that must be set.
IdentityUser user = new IdentityUser
{
UserName = model.UserName
};
user.Logins.Add(new IdentityUserLogin()
{
LoginProvider = externalLogin.LoginProvider,
ProviderKey = externalLogin.ProviderKey,
UserId = user.Id
});
IdentityResult result = await UserManager.CreateAsync(user);

Related

Identity Framework test if confirm email token is expired

Is it possible to test whether a confirm email token is expired using Identity Framework's UserManager? No matter what the error is, from the following:
var result = await UserManager.ConfirmEmailAsync(userId, code);
I get a generic "Invalid Token" error.
I found a way to parse the token for the date issued, which you can then check to see if is within the allowed timespan (default of 24hours if not specified).
Identity.cs
ApplicationUserManager
public IDataProtector Protector { get; set; }
public TimeSpan TokenLifespan { get; set; }
ApplicationUserManager Create()
// Explicitly set token expiration to 24 hours.
manager.TokenLifespan = TimeSpan.FromHours(24);
var dataProtectionProvider = options.DataProtectionProvider;
manager.Protector = dataProtectionProvider.Create("ASP.NET Identity");
if (dataProtectionProvider != null)
{
manager.UserTokenProvider =
new DataProtectorTokenProvider<ApplicationUser>(dataProtectionProvider.Create("ASP.NET Identity"))
{
TokenLifespan = manager.TokenLifespan
};
}
AccountController.cs
public async Task<ActionResult> ConfirmEmail(string Code, string UserId)
{
// Try/catch, validation, etc.
var tokenExpired = false;
var unprotectedData = UserManager.Protector.Unprotect(Convert.FromBase64String(Code));
var ms = new MemoryStream(unprotectedData);
using (BinaryReader reader = new BinaryReader(ms))
{
var creationTime = new DateTimeOffset(reader.ReadInt64(), TimeSpan.Zero);
var expirationTime = creationTime + UserManager.TokenLifespan;
if (expirationTime < DateTimeOffset.UtcNow)
{
tokenExpired = true;
}
}
// Do something if token is expired, else continue with confirmation
}
I found this blog post and Nkosi's answer to be extremely helpful, and if you want to go through the Identity source code, Microsoft has it here (The previous versions of Identity for MVC5 and lower here). Also, I apologize if its in poor form to answer a question that you, yourself put a bounty on, but I couldn't help but continue looking for a better solution.
I get around this by keeping/storing a copy of the generated token
public class ApplicationUser : IdentityUser {
public string EmailConfirmationToken { get; set; }
public string ResetPasswordToken { get; set; }
}
and associating it with the user in derived UserManager<ApplicationUser>.
public override async System.Threading.Tasks.Task<string> GenerateEmailConfirmationTokenAsync(string userId) {
/* NOTE:
* The default UserTokenProvider generates tokens based on the users's SecurityStamp, so until that changes
* (like when the user's password changes), the tokens will always be the same, and remain valid.
* So if you want to simply invalidate old tokens, just call manager.UpdateSecurityStampAsync().
*/
//await base.UpdateSecurityStampAsync(userId);
var token = await base.GenerateEmailConfirmationTokenAsync(userId);
if (!string.IsNullOrEmpty(token)) {
var user = await FindByIdAsync(userId);
user.EmailConfirmationToken = token; //<<< Last issued token
//Note: If a token is generated then the current email is no longer confirmed.
user.EmailConfirmed = false;
await UpdateAsync(user);
}
return token;
}
When the token is provided for confirmation, a search for the user via the token is done.
public static class ApplicationUserManagerExtension {
public static Task<string> FindIdByEmailConfirmationTokenAsync(this UserManager<ApplicationUser> manager, string confirmationToken) {
string result = null;
ApplicationUser user = manager.Users.SingleOrDefault(u => u.EmailConfirmationToken != null && u.EmailConfirmationToken == confirmationToken);
if (user != null) {
result = user.Id;
}
return Task.FromResult(result);
}
}
If the token matches a known user that indicates that it was a validly issued token.
Will then attempt to confirm token with User manager.
If confirmation fails then token has expired and an appropriate action is taken.
Else if the token confirmed, it is removed from associated user and thus invalidating the reuse of that token.
public override async System.Threading.Tasks.Task<IdentityResult> ConfirmEmailAsync(string userId, string token) {
var user = await FindByIdAsync(userId);
if (user == null) {
return IdentityResult.Failed("User Id Not Found");
}
var result = await base.ConfirmEmailAsync(userId, token);
if (result.Succeeded) {
user.EmailConfirmationToken = null;
return await UpdateAsync(user);
} else if (user.EmailConfirmationToken == token) {
//Previously Issued Token expired
result = IdentityResult.Failed("Expired Token");
}
return result;
}
A similar approach was implemented for password reset as well.
Here comes an .NET Core 2.1 adaption of the solution provided by #Nkosi :
ApplicationUser class
public class ApplicationUser : IdentityUser
{
public string EmailConfirmationToken { get; set; }
public string ResetPasswordToken { get; set; }
}
Derived UserManager class
public class CustomUserManager : UserManager<ApplicationUser>
{
public CustomUserManager(IUserStore<ApplicationUser> store,
IOptions<IdentityOptions> optionsAccessor,
IPasswordHasher<ApplicationUser> passwordHasher,
IEnumerable<IUserValidator<ApplicationUser>> userValidators,
IEnumerable<IPasswordValidator<ApplicationUser>> passwordValidators,
ILookupNormalizer keyNormalizer,
IdentityErrorDescriber errors,
IServiceProvider services,
ILogger<UserManager<ApplicationUser>> logger)
: base(store, optionsAccessor, passwordHasher, userValidators, passwordValidators, keyNormalizer, errors, services, logger)
{
}
public override async Task<string> GenerateEmailConfirmationTokenAsync(ApplicationUser user)
{
/* NOTE:
* The default UserTokenProvider generates tokens based on the users's SecurityStamp, so until that changes
* (like when the user's password changes), the tokens will always be the same, and remain valid.
* So if you want to simply invalidate old tokens, just call manager.UpdateSecurityStampAsync().
*/
//await base.UpdateSecurityStampAsync(userId);
var token = await base.GenerateEmailConfirmationTokenAsync(user);
if (!string.IsNullOrEmpty(token))
{
user.EmailConfirmationToken = token; //<<< Last issued token
//Note: If a token is generated then the current email is no longer confirmed.
user.EmailConfirmed = false;
await UpdateAsync(user);
}
return token;
}
public override async Task<IdentityResult> ConfirmEmailAsync(ApplicationUser user, string token)
{
if (user == null)
{
return IdentityResult.Failed(new IdentityError {Description = "User not found."});
}
var result = await base.ConfirmEmailAsync(user, token);
if (result.Succeeded)
{
user.EmailConfirmationToken = null;
return await UpdateAsync(user);
}
else if (user.EmailConfirmationToken == token)
{
//Previously Issued Token expired
result = IdentityResult.Failed(new IdentityError { Description = "Expired token." });
}
return result;
}
}
UserManager Extension
public static class ApplicationUserManagerExtension
{
public static Task<string> FindIdByEmailConfirmationTokenAsync(this UserManager<ApplicationUser> manager, string confirmationToken)
{
string result = null;
ApplicationUser user = manager.Users
.SingleOrDefault(u => u.EmailConfirmationToken != null && u.EmailConfirmationToken == confirmationToken);
if (user != null)
{
result = user.Id;
}
return Task.FromResult(result);
}
}
Update:
The CustomUserManager has to be added to services in Startup.cs in ConfigureServices Method.
services.AddTransient<CustomUserManager>();
Without this, DependencyInjection fails.
You can use my controller.It's working mate.
public IActionResult ForgotPassword()
{
return View();
}
[HttpPost]
public async Task<IActionResult> ForgotPassword(string Email)
{
if (string.IsNullOrEmpty(Email))
{
return View();
}
var user = await _userManager.FindByEmailAsync(Email);
if (user == null)
{
return View();
}
var code =await _userManager.GeneratePasswordResetTokenAsync(user);
var callback = Url.Action("ResetPassword", "Account", new
{
token=code,
},Request.Scheme);
// send email
await _emailSender.SendEmailAsync(Email, "Confirm Password Reset", $"<a href='{callback}'>If you want to reset your password click please !</a>");
return RedirectToAction("ForgotPasswordConfirmation", "Account");
}
public IActionResult ForgotPasswordConfirmation() => View();
public IActionResult ResetPassword(string token)
{
if (token == null)
{
return View();
}
var model = new ResetPasswordModel()
{
Token = token,
};
return View(model);
}
[HttpPost]
public async Task<IActionResult> ResetPassword(ResetPasswordModel model)
{
if (!ModelState.IsValid)
{
return View(model);
}
var user = await _userManager.FindByEmailAsync(model.Email);
if (user == null)
{
return RedirectToAction("Index", "Home");
}
var result = await _userManager.ResetPasswordAsync(user, model.Token, model.Password);
if (result.Succeeded)
{
return RedirectToAction("ResetPasswordConfirmation", "Account");
}
return View(model);
}
public ActionResult ResetPasswordConfirmation() => View();

Login error in Asp.net mvc

I'm having a bit of an issue.
I am finishing work on my first mvc app and I'm using the default Login and Registration Actions.They work, but when I seed the db with initial data I add an administrator user(the user is added to the database correctly). When I try to login as this user - I cannot pass the authentication, I get an error saying "wrong password"
Any help would be strongly appreciated.(I really have no clue)
I am using mvc 5,identity 3.0, entityframework 6.
My account controller actions are
public async Task<IActionResult> Login(LoginViewModel model, string returnUrl = null)
{
ViewData["ReturnUrl"] = returnUrl;
// if (ModelState.IsValid){
// This doesn't 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(1, "User logged in.");
return RedirectToLocal(returnUrl);
}
if (result.RequiresTwoFactor)
{
return RedirectToAction(nameof(SendCode), new { ReturnUrl = returnUrl, RememberMe = model.RememberMe });
}
if (result.IsLockedOut)
{
_logger.LogWarning(2, "User account locked out.");
return View("Lockout");
}
else
{
ModelState.AddModelError(string.Empty, "Invalid login attempt.");
return View(model);
}
// }
// If we got this far, something failed, redisplay form
// return View(model);
}
//
// GET: /Account/Register
[HttpGet]
[AllowAnonymous]
public IActionResult Register()
{
return View();
}
//
// POST: /Account/Register
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<IActionResult> Register(RegisterViewModel model)
{
if (ModelState.IsValid)
{
var user = new ApplicationUser {UserName = model.UserName, Name = model.Name, Email = model.Email,BirthDate = model.BirthDate, LastName = model.Name };
PasswordHasher<ApplicationUser> a = new PasswordHasher<ApplicationUser>();
var result = await _userManager.CreateAsync(user, model.Password);
if (result.Succeeded)
{ await_signInManager.SignInAsync(user,isPersistent:false);
await _userManager.AddToRoleAsync(user, "User");
_logger.LogInformation(3, "User created a new account with password.");
return RedirectToAction(nameof(HomeController.Index), "Home");
}
AddErrors(result);
}
// If we got this far, something failed, redisplay form
return View(model);
}
And this is my data seed method (with class). it is called in the StartupCS after setting the routing.
public static async void Initialize(IServiceProvider serviceProvider)
{
var context = serviceProvider.GetService<ApplicationDbContext>();
bool need= false;
try
{
if (context.Users.Count() == 0)
need = true;
}
catch (Exception)
{ }
if (need)
{
string[] roles = new string[] { "Administrator", "User" };
foreach (string role in roles)
{
var roleStore = new RoleStore<IdentityRole>(context);
if (!context.Roles.Any(r => r.Name == role))
{
await roleStore.CreateAsync(new IdentityRole(role));
}
}
await context.SaveChangesAsync();
var user = new ApplicationUser
{
Name = "Admin",
LastName = "Admin",
Email = "admin#gmail.com",
NormalizedEmail = "ADMIN#GMAIL.COM",
UserName = "Owner",
NormalizedUserName = "OWNER",
PhoneNumber = "+923366633352",
};
var password = new PasswordHasher<ApplicationUser>();
var hashed = password.HashPassword(user, "secret");
user.PasswordHash = hashed;
var userStore = new UserStore<ApplicationUser>(context);
var result = userStore.CreateAsync(user);
UserManager<ApplicationUser> _userManager = serviceProvider.GetService<UserManager<ApplicationUser>>();
//If I try this way - it keeeps on awaiting.
// var result =await _userManager.CreateAsync(user, "lol");
//the role seems to be working fine
var result2 = await _userManager.AddToRoleAsync(user, "Administrator");
}
}
}

ASP.Net Identity Framework sign in after register

I have the following code to try and automatically log a user in after they register but for some reason it doesn't work.
The code hits the line:
return RedirectToAction("Index", "Home");
But for some reason still doesn't log the user in. I thought the SignInAsync would have done it.
Anyone know why it wouldn't be automatically logging the user in?
// POST: /Account/Register
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<ActionResult> Register(RegisterViewModel model)
{
if (ModelState.IsValid)
{
var user = new ApplicationUser() {
UserName = model.Email,
Email = model.Email,
FirstName = model.FirstName,
LastName = model.LastName,
PasswordHint = model.PasswordHint,
EmailConfirmed = true
};
IdentityResult result = await UserManager.CreateAsync(user, model.Password);
if (result.Succeeded)
{
await SignInAsync(user, false);
UserManager.AddToRole(user.Id, AppConstants.Roles.Candidate);
//create a candidate profile for this candidate.
ApplicationDbContext context = new ApplicationDbContext();
var savedUser = context.Users.Single(x => x.Email == user.Email);
savedUser.Candidate = new Candidate();
try
{
context.SaveChanges();
}
catch (DbEntityValidationException e)
{
foreach (var eve in e.EntityValidationErrors)
{
Console.WriteLine("Entity of type \"{0}\" in state \"{1}\" has the following validation errors:",
eve.Entry.Entity.GetType().Name, eve.Entry.State);
foreach (var ve in eve.ValidationErrors)
{
Console.WriteLine("- Property: \"{0}\", Value: \"{1}\", Error: \"{2}\"",
ve.PropertyName,
eve.Entry.CurrentValues.GetValue<object>(ve.PropertyName),
ve.ErrorMessage);
}
}
throw;
}
await SignInAsync(user, isPersistent: false);
return RedirectToAction("Index", "Home");
}
else
{
AddErrors(result);
}
}
// If we got this far, something failed, redisplay form
return View(model);
}
When adding or changing a Role or Claim, the UserManager will not automatically persist those changes until UserManager.Update(user); is called.

UserManager is Always null when trying to Add user to Role

I am trying to add a user to a role using the following code but the UserManager always returns a NULLReferenceException. Any tips for how to get this to work. I feel like it should not be that hard.
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult RoleAddToUser(string UserName, string RoleName)
{
ApplicationUser user = cd.Users.Where(u => u.UserName.Equals(UserName, StringComparison.CurrentCultureIgnoreCase)).FirstOrDefault();
var account = new AccountController();
account.UserManager.AddToRole(user.Id, RoleName);
ViewBag.ResultMessage = "Role created successfully !";
// prepopulat roles for the view dropdown
var list = cd.Roles.OrderBy(r => r.Name).ToList().Select(rr => new SelectListItem { Value = rr.Name.ToString(), Text = rr.Name }).ToList();
ViewBag.Roles = list;
return View("Index");
}
Here is my account controller
using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Claims;
using System.Threading.Tasks;
using System.Web;
using System.Web.Mvc;
using Microsoft.AspNet.Identity;
using Microsoft.AspNet.Identity.EntityFramework;
using Microsoft.AspNet.Identity.Owin;
using Microsoft.Owin.Security;
using Owin;
using LaCeibaNetv4.Models;
namespace LaCeibaNetv4.Controllers
{
[Authorize]
public class AccountController : Controller
{
private ApplicationUserManager _userManager;
public AccountController()
{
}
public AccountController(ApplicationUserManager userManager)
{
UserManager = userManager;
}
public ApplicationUserManager UserManager {
get
{
return _userManager ?? HttpContext.GetOwinContext().GetUserManager<ApplicationUserManager>();
}
private set
{
_userManager = value;
}
}
//
// GET: /Account/Login
[AllowAnonymous]
public ActionResult Login(string returnUrl)
{
ViewBag.ReturnUrl = returnUrl;
return View();
}
//
// POST: /Account/Login
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<ActionResult> Login(LoginViewModel model, string returnUrl)
{
if (ModelState.IsValid)
{
var user = await UserManager.FindAsync(model.Email, model.Password);
if (user != null)
{
await SignInAsync(user, model.RememberMe);
return RedirectToLocal(returnUrl);
}
else
{
ModelState.AddModelError("", "Invalid username or password.");
}
}
// If we got this far, something failed, redisplay form
return View(model);
}
//
// GET: /Account/Register
[AllowAnonymous]
public ActionResult Register()
{
return View();
}
//
// POST: /Account/Register
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<ActionResult> Register(RegisterViewModel model, string passCode)
{
if (ModelState.IsValid && passCode == "Fury")
{
var user = new ApplicationUser() { UserName = model.Email, Email = model.Email };
IdentityResult result = await UserManager.CreateAsync(user, model.Password);
if (result.Succeeded)
{
await SignInAsync(user, isPersistent: false);
// For more information on how to enable account confirmation and password reset please visit http://go.microsoft.com/fwlink/?LinkID=320771
// Send an email with this link
// string code = await UserManager.GenerateEmailConfirmationTokenAsync(user.Id);
// var callbackUrl = Url.Action("ConfirmEmail", "Account", new { userId = user.Id, code = code }, protocol: Request.Url.Scheme);
// await UserManager.SendEmailAsync(user.Id, "Confirm your account", "Please confirm your account by clicking here");
return RedirectToAction("Index", "Home");
}
else
{
AddErrors(result);
}
}
// If we got this far, something failed, redisplay form
return View(model);
}
//
// GET: /Account/ConfirmEmail
[AllowAnonymous]
public async Task<ActionResult> ConfirmEmail(string userId, string code)
{
if (userId == null || code == null)
{
return View("Error");
}
IdentityResult result = await UserManager.ConfirmEmailAsync(userId, code);
if (result.Succeeded)
{
return View("ConfirmEmail");
}
else
{
AddErrors(result);
return View();
}
}
//
// GET: /Account/ForgotPassword
[AllowAnonymous]
public ActionResult ForgotPassword()
{
return View();
}
//
// POST: /Account/ForgotPassword
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<ActionResult> ForgotPassword(ForgotPasswordViewModel model)
{
if (ModelState.IsValid)
{
var user = await UserManager.FindByNameAsync(model.Email);
if (user == null || !(await UserManager.IsEmailConfirmedAsync(user.Id)))
{
ModelState.AddModelError("", "The user either does not exist or is not confirmed.");
return View();
}
// For more information on how to enable account confirmation and password reset please visit http://go.microsoft.com/fwlink/?LinkID=320771
// Send an email with this link
// string code = await UserManager.GeneratePasswordResetTokenAsync(user.Id);
// var callbackUrl = Url.Action("ResetPassword", "Account", new { userId = user.Id, code = code }, protocol: Request.Url.Scheme);
// await UserManager.SendEmailAsync(user.Id, "Reset Password", "Please reset your password by clicking here");
// return RedirectToAction("ForgotPasswordConfirmation", "Account");
}
// If we got this far, something failed, redisplay form
return View(model);
}
//
// GET: /Account/ForgotPasswordConfirmation
[AllowAnonymous]
public ActionResult ForgotPasswordConfirmation()
{
return View();
}
//
// GET: /Account/ResetPassword
[AllowAnonymous]
public ActionResult ResetPassword(string code)
{
if (code == null)
{
return View("Error");
}
return View();
}
//
// POST: /Account/ResetPassword
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<ActionResult> ResetPassword(ResetPasswordViewModel model)
{
if (ModelState.IsValid)
{
var user = await UserManager.FindByNameAsync(model.Email);
if (user == null)
{
ModelState.AddModelError("", "No user found.");
return View();
}
IdentityResult result = await UserManager.ResetPasswordAsync(user.Id, model.Code, model.Password);
if (result.Succeeded)
{
return RedirectToAction("ResetPasswordConfirmation", "Account");
}
else
{
AddErrors(result);
return View();
}
}
// If we got this far, something failed, redisplay form
return View(model);
}
//
// GET: /Account/ResetPasswordConfirmation
[AllowAnonymous]
public ActionResult ResetPasswordConfirmation()
{
return View();
}
//
// POST: /Account/Disassociate
[HttpPost]
[ValidateAntiForgeryToken]
public async Task<ActionResult> Disassociate(string loginProvider, string providerKey)
{
ManageMessageId? message = null;
IdentityResult result = await UserManager.RemoveLoginAsync(User.Identity.GetUserId(), new UserLoginInfo(loginProvider, providerKey));
if (result.Succeeded)
{
var user = await UserManager.FindByIdAsync(User.Identity.GetUserId());
await SignInAsync(user, isPersistent: false);
message = ManageMessageId.RemoveLoginSuccess;
}
else
{
message = ManageMessageId.Error;
}
return RedirectToAction("Manage", new { Message = message });
}
//
// GET: /Account/Manage
public ActionResult Manage(ManageMessageId? message)
{
ViewBag.StatusMessage =
message == ManageMessageId.ChangePasswordSuccess ? "Your password has been changed."
: message == ManageMessageId.SetPasswordSuccess ? "Your password has been set."
: message == ManageMessageId.RemoveLoginSuccess ? "The external login was removed."
: message == ManageMessageId.Error ? "An error has occurred."
: "";
ViewBag.HasLocalPassword = HasPassword();
ViewBag.ReturnUrl = Url.Action("Manage");
return View();
}
//
// POST: /Account/Manage
[HttpPost]
[ValidateAntiForgeryToken]
public async Task<ActionResult> Manage(ManageUserViewModel model)
{
bool hasPassword = HasPassword();
ViewBag.HasLocalPassword = hasPassword;
ViewBag.ReturnUrl = Url.Action("Manage");
if (hasPassword)
{
if (ModelState.IsValid)
{
IdentityResult result = await UserManager.ChangePasswordAsync(User.Identity.GetUserId(), model.OldPassword, model.NewPassword);
if (result.Succeeded)
{
var user = await UserManager.FindByIdAsync(User.Identity.GetUserId());
await SignInAsync(user, isPersistent: false);
return RedirectToAction("Manage", new { Message = ManageMessageId.ChangePasswordSuccess });
}
else
{
AddErrors(result);
}
}
}
else
{
// User does not have a password so remove any validation errors caused by a missing OldPassword field
ModelState state = ModelState["OldPassword"];
if (state != null)
{
state.Errors.Clear();
}
if (ModelState.IsValid)
{
IdentityResult result = await UserManager.AddPasswordAsync(User.Identity.GetUserId(), model.NewPassword);
if (result.Succeeded)
{
return RedirectToAction("Manage", new { Message = ManageMessageId.SetPasswordSuccess });
}
else
{
AddErrors(result);
}
}
}
// If we got this far, something failed, redisplay form
return View(model);
}
//
// POST: /Account/ExternalLogin
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public ActionResult ExternalLogin(string provider, string returnUrl)
{
// Request a redirect to the external login provider
return new ChallengeResult(provider, Url.Action("ExternalLoginCallback", "Account", new { ReturnUrl = returnUrl }));
}
//
// GET: /Account/ExternalLoginCallback
[AllowAnonymous]
public async Task<ActionResult> ExternalLoginCallback(string returnUrl)
{
var loginInfo = await AuthenticationManager.GetExternalLoginInfoAsync();
if (loginInfo == null)
{
return RedirectToAction("Login");
}
// Sign in the user with this external login provider if the user already has a login
var user = await UserManager.FindAsync(loginInfo.Login);
if (user != null)
{
await SignInAsync(user, isPersistent: false);
return RedirectToLocal(returnUrl);
}
else
{
// If the user does not have an account, then prompt the user to create an account
ViewBag.ReturnUrl = returnUrl;
ViewBag.LoginProvider = loginInfo.Login.LoginProvider;
return View("ExternalLoginConfirmation", new ExternalLoginConfirmationViewModel { Email = loginInfo.Email });
}
}
//
// POST: /Account/LinkLogin
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult LinkLogin(string provider)
{
// Request a redirect to the external login provider to link a login for the current user
return new ChallengeResult(provider, Url.Action("LinkLoginCallback", "Account"), User.Identity.GetUserId());
}
//
// GET: /Account/LinkLoginCallback
public async Task<ActionResult> LinkLoginCallback()
{
var loginInfo = await AuthenticationManager.GetExternalLoginInfoAsync(XsrfKey, User.Identity.GetUserId());
if (loginInfo == null)
{
return RedirectToAction("Manage", new { Message = ManageMessageId.Error });
}
IdentityResult result = await UserManager.AddLoginAsync(User.Identity.GetUserId(), loginInfo.Login);
if (result.Succeeded)
{
return RedirectToAction("Manage");
}
return RedirectToAction("Manage", new { Message = ManageMessageId.Error });
}
//
// POST: /Account/ExternalLoginConfirmation
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<ActionResult> ExternalLoginConfirmation(ExternalLoginConfirmationViewModel model, string returnUrl)
{
if (User.Identity.IsAuthenticated)
{
return RedirectToAction("Manage");
}
if (ModelState.IsValid)
{
// Get the information about the user from the external login provider
var info = await AuthenticationManager.GetExternalLoginInfoAsync();
if (info == null)
{
return View("ExternalLoginFailure");
}
var user = new ApplicationUser() { UserName = model.Email, Email = model.Email };
IdentityResult result = await UserManager.CreateAsync(user);
if (result.Succeeded)
{
result = await UserManager.AddLoginAsync(user.Id, info.Login);
if (result.Succeeded)
{
await SignInAsync(user, isPersistent: false);
// For more information on how to enable account confirmation and password reset please visit http://go.microsoft.com/fwlink/?LinkID=320771
// Send an email with this link
// string code = await UserManager.GenerateEmailConfirmationTokenAsync(user.Id);
// var callbackUrl = Url.Action("ConfirmEmail", "Account", new { userId = user.Id, code = code }, protocol: Request.Url.Scheme);
// SendEmail(user.Email, callbackUrl, "Confirm your account", "Please confirm your account by clicking this link");
return RedirectToLocal(returnUrl);
}
}
AddErrors(result);
}
ViewBag.ReturnUrl = returnUrl;
return View(model);
}
//
// POST: /Account/LogOff
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult LogOff()
{
AuthenticationManager.SignOut();
return RedirectToAction("Index", "Home");
}
//
// GET: /Account/ExternalLoginFailure
[AllowAnonymous]
public ActionResult ExternalLoginFailure()
{
return View();
}
[ChildActionOnly]
public ActionResult RemoveAccountList()
{
var linkedAccounts = UserManager.GetLogins(User.Identity.GetUserId());
ViewBag.ShowRemoveButton = HasPassword() || linkedAccounts.Count > 1;
return (ActionResult)PartialView("_RemoveAccountPartial", linkedAccounts);
}
protected override void Dispose(bool disposing)
{
if (disposing && UserManager != null)
{
UserManager.Dispose();
UserManager = null;
}
base.Dispose(disposing);
}
#region Helpers
// Used for XSRF protection when adding external logins
private const string XsrfKey = "XsrfId";
private IAuthenticationManager AuthenticationManager
{
get
{
return HttpContext.GetOwinContext().Authentication;
}
}
private async Task SignInAsync(ApplicationUser user, bool isPersistent)
{
AuthenticationManager.SignOut(DefaultAuthenticationTypes.ExternalCookie);
AuthenticationManager.SignIn(new AuthenticationProperties() { IsPersistent = isPersistent }, await user.GenerateUserIdentityAsync(UserManager));
}
private void AddErrors(IdentityResult result)
{
foreach (var error in result.Errors)
{
ModelState.AddModelError("", error);
}
}
private bool HasPassword()
{
var user = UserManager.FindById(User.Identity.GetUserId());
if (user != null)
{
return user.PasswordHash != null;
}
return false;
}
private void SendEmail(string email, string callbackUrl, string subject, string message)
{
// For information on sending mail, please visit http://go.microsoft.com/fwlink/?LinkID=320771
}
public enum ManageMessageId
{
ChangePasswordSuccess,
SetPasswordSuccess,
RemoveLoginSuccess,
Error
}
private ActionResult RedirectToLocal(string returnUrl)
{
if (Url.IsLocalUrl(returnUrl))
{
return Redirect(returnUrl);
}
else
{
return RedirectToAction("Index", "Home");
}
}
private class ChallengeResult : HttpUnauthorizedResult
{
public ChallengeResult(string provider, string redirectUri) : this(provider, redirectUri, null)
{
}
public ChallengeResult(string provider, string redirectUri, string userId)
{
LoginProvider = provider;
RedirectUri = redirectUri;
UserId = userId;
}
public string LoginProvider { get; set; }
public string RedirectUri { get; set; }
public string UserId { get; set; }
public override void ExecuteResult(ControllerContext context)
{
var properties = new AuthenticationProperties() { RedirectUri = RedirectUri };
if (UserId != null)
{
properties.Dictionary[XsrfKey] = UserId;
}
context.HttpContext.GetOwinContext().Authentication.Challenge(properties, LoginProvider);
}
}
#endregion
}
}
I think you might be getting error on the following line :
account.UserManager.AddToRole(user.Id, RoleName);
at user.Id
You must check :
if (user != null)
then add User to Role.

Adding A User to a Role Asp.net MVC

I am trying to add a user to a role using the following code but the UserManager always returns a NULLReferenceException. Any tips for how to get this to work. I feel like it should not be that hard.
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult RoleAddToUser(string UserName, string RoleName)
{
ApplicationUser user = cd.Users.Where(u => u.UserName.Equals(UserName, StringComparison.CurrentCultureIgnoreCase)).FirstOrDefault();
var account = new AccountController();
account.UserManager.AddToRole(user.Id, RoleName);
ViewBag.ResultMessage = "Role created successfully !";
// prepopulat roles for the view dropdown
var list = cd.Roles.OrderBy(r => r.Name).ToList().Select(rr => new SelectListItem { Value = rr.Name.ToString(), Text = rr.Name }).ToList();
ViewBag.Roles = list;
return View("Index");
}
Here is my account controller
using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Claims;
using System.Threading.Tasks;
using System.Web;
using System.Web.Mvc;
using Microsoft.AspNet.Identity;
using Microsoft.AspNet.Identity.EntityFramework;
using Microsoft.AspNet.Identity.Owin;
using Microsoft.Owin.Security;
using Owin;
using LaCeibaNetv4.Models;
namespace LaCeibaNetv4.Controllers
{
[Authorize]
public class AccountController : Controller
{
private ApplicationUserManager _userManager;
public AccountController()
{
}
public AccountController(ApplicationUserManager userManager)
{
UserManager = userManager;
}
public ApplicationUserManager UserManager {
get
{
return _userManager ?? HttpContext.GetOwinContext().GetUserManager<ApplicationUserManager>();
}
private set
{
_userManager = value;
}
}
//
// GET: /Account/Login
[AllowAnonymous]
public ActionResult Login(string returnUrl)
{
ViewBag.ReturnUrl = returnUrl;
return View();
}
//
// POST: /Account/Login
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<ActionResult> Login(LoginViewModel model, string returnUrl)
{
if (ModelState.IsValid)
{
var user = await UserManager.FindAsync(model.Email, model.Password);
if (user != null)
{
await SignInAsync(user, model.RememberMe);
return RedirectToLocal(returnUrl);
}
else
{
ModelState.AddModelError("", "Invalid username or password.");
}
}
// If we got this far, something failed, redisplay form
return View(model);
}
//
// GET: /Account/Register
[AllowAnonymous]
public ActionResult Register()
{
return View();
}
//
// POST: /Account/Register
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<ActionResult> Register(RegisterViewModel model, string passCode)
{
if (ModelState.IsValid && passCode == "Fury")
{
var user = new ApplicationUser() { UserName = model.Email, Email = model.Email };
IdentityResult result = await UserManager.CreateAsync(user, model.Password);
if (result.Succeeded)
{
await SignInAsync(user, isPersistent: false);
// For more information on how to enable account confirmation and password reset please visit http://go.microsoft.com/fwlink/?LinkID=320771
// Send an email with this link
// string code = await UserManager.GenerateEmailConfirmationTokenAsync(user.Id);
// var callbackUrl = Url.Action("ConfirmEmail", "Account", new { userId = user.Id, code = code }, protocol: Request.Url.Scheme);
// await UserManager.SendEmailAsync(user.Id, "Confirm your account", "Please confirm your account by clicking here");
return RedirectToAction("Index", "Home");
}
else
{
AddErrors(result);
}
}
// If we got this far, something failed, redisplay form
return View(model);
}
//
// GET: /Account/ConfirmEmail
[AllowAnonymous]
public async Task<ActionResult> ConfirmEmail(string userId, string code)
{
if (userId == null || code == null)
{
return View("Error");
}
IdentityResult result = await UserManager.ConfirmEmailAsync(userId, code);
if (result.Succeeded)
{
return View("ConfirmEmail");
}
else
{
AddErrors(result);
return View();
}
}
//
// GET: /Account/ForgotPassword
[AllowAnonymous]
public ActionResult ForgotPassword()
{
return View();
}
//
// POST: /Account/ForgotPassword
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<ActionResult> ForgotPassword(ForgotPasswordViewModel model)
{
if (ModelState.IsValid)
{
var user = await UserManager.FindByNameAsync(model.Email);
if (user == null || !(await UserManager.IsEmailConfirmedAsync(user.Id)))
{
ModelState.AddModelError("", "The user either does not exist or is not confirmed.");
return View();
}
// For more information on how to enable account confirmation and password reset please visit http://go.microsoft.com/fwlink/?LinkID=320771
// Send an email with this link
// string code = await UserManager.GeneratePasswordResetTokenAsync(user.Id);
// var callbackUrl = Url.Action("ResetPassword", "Account", new { userId = user.Id, code = code }, protocol: Request.Url.Scheme);
// await UserManager.SendEmailAsync(user.Id, "Reset Password", "Please reset your password by clicking here");
// return RedirectToAction("ForgotPasswordConfirmation", "Account");
}
// If we got this far, something failed, redisplay form
return View(model);
}
//
// GET: /Account/ForgotPasswordConfirmation
[AllowAnonymous]
public ActionResult ForgotPasswordConfirmation()
{
return View();
}
//
// GET: /Account/ResetPassword
[AllowAnonymous]
public ActionResult ResetPassword(string code)
{
if (code == null)
{
return View("Error");
}
return View();
}
//
// POST: /Account/ResetPassword
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<ActionResult> ResetPassword(ResetPasswordViewModel model)
{
if (ModelState.IsValid)
{
var user = await UserManager.FindByNameAsync(model.Email);
if (user == null)
{
ModelState.AddModelError("", "No user found.");
return View();
}
IdentityResult result = await UserManager.ResetPasswordAsync(user.Id, model.Code, model.Password);
if (result.Succeeded)
{
return RedirectToAction("ResetPasswordConfirmation", "Account");
}
else
{
AddErrors(result);
return View();
}
}
// If we got this far, something failed, redisplay form
return View(model);
}
//
// GET: /Account/ResetPasswordConfirmation
[AllowAnonymous]
public ActionResult ResetPasswordConfirmation()
{
return View();
}
//
// POST: /Account/Disassociate
[HttpPost]
[ValidateAntiForgeryToken]
public async Task<ActionResult> Disassociate(string loginProvider, string providerKey)
{
ManageMessageId? message = null;
IdentityResult result = await UserManager.RemoveLoginAsync(User.Identity.GetUserId(), new UserLoginInfo(loginProvider, providerKey));
if (result.Succeeded)
{
var user = await UserManager.FindByIdAsync(User.Identity.GetUserId());
await SignInAsync(user, isPersistent: false);
message = ManageMessageId.RemoveLoginSuccess;
}
else
{
message = ManageMessageId.Error;
}
return RedirectToAction("Manage", new { Message = message });
}
//
// GET: /Account/Manage
public ActionResult Manage(ManageMessageId? message)
{
ViewBag.StatusMessage =
message == ManageMessageId.ChangePasswordSuccess ? "Your password has been changed."
: message == ManageMessageId.SetPasswordSuccess ? "Your password has been set."
: message == ManageMessageId.RemoveLoginSuccess ? "The external login was removed."
: message == ManageMessageId.Error ? "An error has occurred."
: "";
ViewBag.HasLocalPassword = HasPassword();
ViewBag.ReturnUrl = Url.Action("Manage");
return View();
}
//
// POST: /Account/Manage
[HttpPost]
[ValidateAntiForgeryToken]
public async Task<ActionResult> Manage(ManageUserViewModel model)
{
bool hasPassword = HasPassword();
ViewBag.HasLocalPassword = hasPassword;
ViewBag.ReturnUrl = Url.Action("Manage");
if (hasPassword)
{
if (ModelState.IsValid)
{
IdentityResult result = await UserManager.ChangePasswordAsync(User.Identity.GetUserId(), model.OldPassword, model.NewPassword);
if (result.Succeeded)
{
var user = await UserManager.FindByIdAsync(User.Identity.GetUserId());
await SignInAsync(user, isPersistent: false);
return RedirectToAction("Manage", new { Message = ManageMessageId.ChangePasswordSuccess });
}
else
{
AddErrors(result);
}
}
}
else
{
// User does not have a password so remove any validation errors caused by a missing OldPassword field
ModelState state = ModelState["OldPassword"];
if (state != null)
{
state.Errors.Clear();
}
if (ModelState.IsValid)
{
IdentityResult result = await UserManager.AddPasswordAsync(User.Identity.GetUserId(), model.NewPassword);
if (result.Succeeded)
{
return RedirectToAction("Manage", new { Message = ManageMessageId.SetPasswordSuccess });
}
else
{
AddErrors(result);
}
}
}
// If we got this far, something failed, redisplay form
return View(model);
}
//
// POST: /Account/ExternalLogin
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public ActionResult ExternalLogin(string provider, string returnUrl)
{
// Request a redirect to the external login provider
return new ChallengeResult(provider, Url.Action("ExternalLoginCallback", "Account", new { ReturnUrl = returnUrl }));
}
//
// GET: /Account/ExternalLoginCallback
[AllowAnonymous]
public async Task<ActionResult> ExternalLoginCallback(string returnUrl)
{
var loginInfo = await AuthenticationManager.GetExternalLoginInfoAsync();
if (loginInfo == null)
{
return RedirectToAction("Login");
}
// Sign in the user with this external login provider if the user already has a login
var user = await UserManager.FindAsync(loginInfo.Login);
if (user != null)
{
await SignInAsync(user, isPersistent: false);
return RedirectToLocal(returnUrl);
}
else
{
// If the user does not have an account, then prompt the user to create an account
ViewBag.ReturnUrl = returnUrl;
ViewBag.LoginProvider = loginInfo.Login.LoginProvider;
return View("ExternalLoginConfirmation", new ExternalLoginConfirmationViewModel { Email = loginInfo.Email });
}
}
//
// POST: /Account/LinkLogin
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult LinkLogin(string provider)
{
// Request a redirect to the external login provider to link a login for the current user
return new ChallengeResult(provider, Url.Action("LinkLoginCallback", "Account"), User.Identity.GetUserId());
}
//
// GET: /Account/LinkLoginCallback
public async Task<ActionResult> LinkLoginCallback()
{
var loginInfo = await AuthenticationManager.GetExternalLoginInfoAsync(XsrfKey, User.Identity.GetUserId());
if (loginInfo == null)
{
return RedirectToAction("Manage", new { Message = ManageMessageId.Error });
}
IdentityResult result = await UserManager.AddLoginAsync(User.Identity.GetUserId(), loginInfo.Login);
if (result.Succeeded)
{
return RedirectToAction("Manage");
}
return RedirectToAction("Manage", new { Message = ManageMessageId.Error });
}
//
// POST: /Account/ExternalLoginConfirmation
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<ActionResult> ExternalLoginConfirmation(ExternalLoginConfirmationViewModel model, string returnUrl)
{
if (User.Identity.IsAuthenticated)
{
return RedirectToAction("Manage");
}
if (ModelState.IsValid)
{
// Get the information about the user from the external login provider
var info = await AuthenticationManager.GetExternalLoginInfoAsync();
if (info == null)
{
return View("ExternalLoginFailure");
}
var user = new ApplicationUser() { UserName = model.Email, Email = model.Email };
IdentityResult result = await UserManager.CreateAsync(user);
if (result.Succeeded)
{
result = await UserManager.AddLoginAsync(user.Id, info.Login);
if (result.Succeeded)
{
await SignInAsync(user, isPersistent: false);
// For more information on how to enable account confirmation and password reset please visit http://go.microsoft.com/fwlink/?LinkID=320771
// Send an email with this link
// string code = await UserManager.GenerateEmailConfirmationTokenAsync(user.Id);
// var callbackUrl = Url.Action("ConfirmEmail", "Account", new { userId = user.Id, code = code }, protocol: Request.Url.Scheme);
// SendEmail(user.Email, callbackUrl, "Confirm your account", "Please confirm your account by clicking this link");
return RedirectToLocal(returnUrl);
}
}
AddErrors(result);
}
ViewBag.ReturnUrl = returnUrl;
return View(model);
}
//
// POST: /Account/LogOff
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult LogOff()
{
AuthenticationManager.SignOut();
return RedirectToAction("Index", "Home");
}
//
// GET: /Account/ExternalLoginFailure
[AllowAnonymous]
public ActionResult ExternalLoginFailure()
{
return View();
}
[ChildActionOnly]
public ActionResult RemoveAccountList()
{
var linkedAccounts = UserManager.GetLogins(User.Identity.GetUserId());
ViewBag.ShowRemoveButton = HasPassword() || linkedAccounts.Count > 1;
return (ActionResult)PartialView("_RemoveAccountPartial", linkedAccounts);
}
protected override void Dispose(bool disposing)
{
if (disposing && UserManager != null)
{
UserManager.Dispose();
UserManager = null;
}
base.Dispose(disposing);
}
#region Helpers
// Used for XSRF protection when adding external logins
private const string XsrfKey = "XsrfId";
private IAuthenticationManager AuthenticationManager
{
get
{
return HttpContext.GetOwinContext().Authentication;
}
}
private async Task SignInAsync(ApplicationUser user, bool isPersistent)
{
AuthenticationManager.SignOut(DefaultAuthenticationTypes.ExternalCookie);
AuthenticationManager.SignIn(new AuthenticationProperties() { IsPersistent = isPersistent }, await user.GenerateUserIdentityAsync(UserManager));
}
private void AddErrors(IdentityResult result)
{
foreach (var error in result.Errors)
{
ModelState.AddModelError("", error);
}
}
private bool HasPassword()
{
var user = UserManager.FindById(User.Identity.GetUserId());
if (user != null)
{
return user.PasswordHash != null;
}
return false;
}
private void SendEmail(string email, string callbackUrl, string subject, string message)
{
// For information on sending mail, please visit http://go.microsoft.com/fwlink/?LinkID=320771
}
public enum ManageMessageId
{
ChangePasswordSuccess,
SetPasswordSuccess,
RemoveLoginSuccess,
Error
}
private ActionResult RedirectToLocal(string returnUrl)
{
if (Url.IsLocalUrl(returnUrl))
{
return Redirect(returnUrl);
}
else
{
return RedirectToAction("Index", "Home");
}
}
private class ChallengeResult : HttpUnauthorizedResult
{
public ChallengeResult(string provider, string redirectUri) : this(provider, redirectUri, null)
{
}
public ChallengeResult(string provider, string redirectUri, string userId)
{
LoginProvider = provider;
RedirectUri = redirectUri;
UserId = userId;
}
public string LoginProvider { get; set; }
public string RedirectUri { get; set; }
public string UserId { get; set; }
public override void ExecuteResult(ControllerContext context)
{
var properties = new AuthenticationProperties() { RedirectUri = RedirectUri };
if (UserId != null)
{
properties.Dictionary[XsrfKey] = UserId;
}
context.HttpContext.GetOwinContext().Authentication.Challenge(properties, LoginProvider);
}
}
#endregion
}
}
If you are getting an Sql exception its.more likely the fields are returning a null value on post. Set a BP on your POST event and step through it and ensure your values are not null...
Also what's RoleAddToUser looks to me like your using identity. With identity there id a built in AddToRole so if that's a custom function am not really sure why ? You need to say what exactly is null. But my guess is your not sending the correct fields back.
Also if its custom just so you can do dropdown list of roles on my programme I just make the dropdown similar to what you did there but I do it in the login controller and ensure they cant select Admin.
I think you might be getting error on the following line :
account.UserManager.AddToRole(user.Id, RoleName);
at user.Id
You must check :
if (user != null)
then add User to Role.

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