src/NetCoreBBS/Controllers/AccountController.cs

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using System;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Identity;
using NetCoreBBS.Entities;
using NetCoreBBS.ViewModels;
using Microsoft.Extensions.Logging;
using System.Security.Claims;

// For more information on enabling MVC for empty projects, visit http://go.microsoft.com/fwlink/?LinkID=397860

namespace NetCoreBBS.Controllers
{
    public class AccountController : Controller
    {
        private readonly ILogger<AccountController> _logger;

        public AccountController(
            UserManager<User> userManager,
            SignInManager<User> signInManager,
            ILogger<AccountController> logger)
        {
            UserManager = userManager;
            SignInManager = signInManager;
            _logger = logger;
        }

        public UserManager<User> UserManager { get; }

        public SignInManager<User> SignInManager { get; }

        //
        // GET: /Account/Login
        public IActionResult Login(string returnUrl = null)
        {
            ViewBag.ReturnUrl = returnUrl;
            return View();
        }

        //
        // POST: /Account/Login
        [HttpPost]
        [ValidateAntiForgeryToken]
        public async Task<IActionResult> Login(LoginViewModel model, string returnUrl = null)
        {
            if (!ModelState.IsValid)
            {
                return View(model);
            }

            var result = await SignInManager.PasswordSignInAsync(model.UserName, model.Password, model.RememberMe, lockoutOnFailure: false);
            if (result.Succeeded)
            {
                _logger.LogInformation("Logged in {userName}.", model.UserName);
                return RedirectToLocal(returnUrl);
            }
            else
            {
                _logger.LogWarning("Failed to log in {userName}.", model.UserName);