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AuthenticationController.cs

using Microsoft.AspNetCore.Mvc;
using Nop.Core;
using Nop.Core.Domain.Customers;
using Nop.Core.Http.Extensions;
using Nop.Plugin.MultiFactorAuth.GoogleAuthenticator.Models;
using Nop.Plugin.MultiFactorAuth.GoogleAuthenticator.Services;
using Nop.Services.Customers;
using Nop.Services.Localization;
using Nop.Services.Messages;
using Nop.Web.Framework.Controllers;

namespace Nop.Plugin.MultiFactorAuth.GoogleAuthenticator.Controllers;

[AutoValidateAntiforgeryToken]
public class AuthenticationController : BasePluginController
{
    #region Fields

    protected readonly CustomerSettings _customerSettings;
    protected readonly GoogleAuthenticatorService _googleAuthenticatorService;
    protected readonly ICustomerRegistrationService _customerRegistrationService;
    protected readonly ICustomerService _customerService;
    protected readonly ILocalizationService _localizationService;
    protected readonly INotificationService _notificationService;
    protected readonly IWorkContext _workContext;

    #endregion

    #region Ctor
    public AuthenticationController(
        CustomerSettings customerSettings,
        GoogleAuthenticatorService googleAuthenticatorService,
        ICustomerRegistrationService customerRegistrationService,
        ICustomerService customerService,
        ILocalizationService localizationService,
        INotificationService notificationService,
        IWorkContext workContext)
    {
        _customerSettings = customerSettings;
        _googleAuthenticatorService = googleAuthenticatorService;
        _customerRegistrationService = customerRegistrationService;
        _customerService = customerService;
        _localizationService = localizationService;
        _notificationService = notificationService;
        _workContext = workContext;
    }

    #endregion

    #region Methods

    [HttpPost]
    public async Task RegisterGoogleAuthenticator(AuthModel model)
    {
        var currentCustomer = await _workContext.GetCurrentCustomerAsync();

        var isValidToken = _googleAuthenticatorService.ValidateTwoFactorToken(model.SecretKey, model.Code);
        if (isValidToken)
        {
            //try to find config with current customer and update
            if (_googleAuthenticatorService.IsRegisteredCustomer(currentCustomer.Email))
            {
                await _googleAuthenticatorService.UpdateGoogleAuthenticatorAccountAsync(currentCustomer.Email, model.SecretKey);
            }
            else
            {
                await _googleAuthenticatorService.AddGoogleAuthenticatorAccountAsync(currentCustomer.Email, model.SecretKey);
            }
            _notificationService.SuccessNotification(await _localizationService.GetResourceAsync("Plugins.MultiFactorAuth.GoogleAuthenticator.Token.Successful"));
        }
        else
        {
            _notificationService.ErrorNotification(await _localizationService.GetResourceAsync("Plugins.MultiFactorAuth.GoogleAuthenticator.Token.Unsuccessful"));
            return RedirectToRoute("CustomerMultiFactorAuthenticationProviderConfig", new { providerSysName = GoogleAuthenticatorDefaults.SystemName });
        }

        return RedirectToRoute("MultiFactorAuthenticationSettings");
    }

    [HttpPost]
    public async Task VerifyGoogleAuthenticator(TokenModel model)
    {
        var customerMultiFactorAuthenticationInfo = await HttpContext.Session.GetAsync(NopCustomerDefaults.CustomerMultiFactorAuthenticationInfo);
        var username = customerMultiFactorAuthenticationInfo.UserName;
        var returnUrl = customerMultiFactorAuthenticationInfo.ReturnUrl;
        var isPersist = customerMultiFactorAuthenticationInfo.RememberMe;

        var customer = _customerSettings.UsernamesEnabled ? await _customerService.GetCustomerByUsernameAsync(username) : await _customerService.GetCustomerByEmailAsync(username);
        if (customer == null)
            return RedirectToRoute("Login");

        var record = _googleAuthenticatorService.GetConfigurationByCustomerEmail(customer.Email);
        if (record != null)
        {
            var isValidToken = _googleAuthenticatorService.ValidateTwoFactorToken(record.SecretKey, model.Token);
            if (isValidToken)
            {
                await HttpContext.Session.SetAsync(NopCustomerDefaults.CustomerMultiFactorAuthenticationInfo, null);

                return await _customerRegistrationService.SignInCustomerAsync(customer, returnUrl, isPersist);
            }
            else
            {
                _notificationService.ErrorNotification(await _localizationService.GetResourceAsync("Plugins.MultiFactorAuth.GoogleAuthenticator.Token.Unsuccessful"));
            }
        }
        else
        {
            _notificationService.ErrorNotification(await _localizationService.GetResourceAsync("Plugins.MultiFactorAuth.GoogleAuthenticator.Record.Notfound"));
        }

        return RedirectToRoute("MultiFactorVerification");
    }

    #endregion
}