MVC 5 Identity 2.0 lockout doesn't work

Question

I need to block a user permanently. I don't understand why this code is not working.

This line UserManager.IsLockedOut(user.Id); always returns false instead of true.

Maybe it's necessary to put this line UserManager.UserLockoutEnabledByDefault = true; in user registration stage?

using (var _db = new ApplicationDbContext())
{
    UserStore<DALApplicationUser> UserStore = new UserStore<DALApplicationUser>(_db);
    UserManager<DALApplicationUser> UserManager = new UserManager<DALApplicationUser>(UserStore);
    UserManager.UserLockoutEnabledByDefault = true;
    DALApplicationUser user = _userService.GetUserByProfileId(id);
    bool a = UserManager.IsLockedOut(user.Id);
    UserManager.SetLockoutEnabled(user.Id, true);

    a = UserManager.IsLockedOut(user.Id);
    _db.SaveChanges();
}

Answer 1

The line

UserManager.SetLockoutEnabled(user.Id, true);

is not locking or unlocking the account. This method is used to permanently enable or disable the locking out process for the given user account. As it stands, you are making a call that is basically setting this user account up to be bound by the rules of account locking. Making a call with the second parameter as false ie:

UserManager.SetLockoutEnabled(user.Id, false);

would allow you to setup a user account that is exempt from the rules of locking - this may be useful for an admin account.

Here is the code for UserManager.IsLockedOutAsync:

/// <summary>
///     Returns true if the user is locked out
/// </summary>
/// <param name="userId"></param>
/// <returns></returns>
public virtual async Task<bool> IsLockedOutAsync(TKey userId)
{
    ThrowIfDisposed();
    var store = GetUserLockoutStore();
    var user = await FindByIdAsync(userId).WithCurrentCulture();
    if (user == null)
    {
        throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture, Resources.UserIdNotFound,
            userId));
    }
    if (!await store.GetLockoutEnabledAsync(user).WithCurrentCulture())
    {
        return false;
    }
    var lockoutTime = await store.GetLockoutEndDateAsync(user).WithCurrentCulture();
    return lockoutTime >= DateTimeOffset.UtcNow;
}

As you can see, for a user to be classed as locked out, the lockout must be enabled as above and the user must have a LockoutEndDateUtc value that is greater than or equal to the current date.

So, to "permanently" lock an account, you could do the following:

using (var _db = new ApplicationDbContext())
{
    UserStore<DALApplicationUser> UserStore = new UserStore<DALApplicationUser>(_db);
    UserManager<DALApplicationUser> UserManager = new UserManager<DALApplicationUser>(UserStore);
    UserManager.UserLockoutEnabledByDefault = true;
    DALApplicationUser user = _userService.GetUserByProfileId(id);

    bool a = UserManager.IsLockedOut(user.Id);

    //user.LockoutEndDateUtc = DateTime.MaxValue; //.NET 4.5+
    user.LockoutEndDateUtc = new DateTime(9999, 12, 30);
    _db.SaveChanges();

    a = UserManager.IsLockedOut(user.Id);
}