using System; using System.Collections.Generic; using System.ComponentModel.DataAnnotations; using System.Linq; using System.Text.Encodings.Web; using System.Threading.Tasks; using Microsoft.AspNetCore.Authorization; using Microsoft.AspNetCore.Authentication; using Microsoft.AspNetCore.Identity; using Microsoft.AspNetCore.Identity.UI.Services; using Microsoft.AspNetCore.Mvc; using Microsoft.AspNetCore.Mvc.RazorPages; using Microsoft.Extensions.Logging; namespace InventoryManager.Areas.Identity.Pages.Account { [AllowAnonymous] public class LoginModel : PageModel { private readonly UserManager<IdentityUser> _userManager; private readonly SignInManager<IdentityUser> _signInManager; private readonly ILogger<LoginModel> _logger; public LoginModel(SignInManager<IdentityUser> signInManager, ILogger<LoginModel> logger, UserManager<IdentityUser> userManager) { _userManager = userManager; _signInManager = signInManager; _logger = logger; } [BindProperty] public InputModel Input { get; set; } public IList<AuthenticationScheme> ExternalLogins { get; set; } public string ReturnUrl { get; set; } [TempData] public string ErrorMessage { get; set; } public class InputModel { [Required] [Display (Name ="UserName / Email")] public string UserName { get; set; } [Required] [DataType(DataType.Password)] public string Password { get; set; } [Display(Name = "Remember me?")] public bool RememberMe { get; set; } } public async Task OnGetAsync(string returnUrl = null) { if (!string.IsNullOrEmpty(ErrorMessage)) { ModelState.AddModelError(string.Empty, ErrorMessage); } returnUrl ??= Url.Content("~/"); // Clear the existing external cookie to ensure a clean login process await HttpContext.SignOutAsync(IdentityConstants.ExternalScheme); ExternalLogins = (await _signInManager.GetExternalAuthenticationSchemesAsync()).ToList(); ReturnUrl = returnUrl; } public async Task<IActionResult> OnPostAsync(string returnUrl = null) { returnUrl ??= Url.Content("~/"); ExternalLogins = (await _signInManager.GetExternalAuthenticationSchemesAsync()).ToList(); if (ModelState.IsValid) { var userName = Input.UserName; if (userName.IndexOf('@') > -1) { var user = await _userManager.FindByEmailAsync(userName); if (user == null) { ModelState.AddModelError("", "Invalid Emaill Address or Email Id is not found"); return Page(); } else { userName = user.UserName; } } // 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(userName, Input.Password, Input.RememberMe, lockoutOnFailure: false); if (result.Succeeded) { _logger.LogInformation("User logged in."); return LocalRedirect(returnUrl); } if (result.RequiresTwoFactor) { return RedirectToPage("./LoginWith2fa", new { ReturnUrl = returnUrl, RememberMe = Input.RememberMe }); } if (result.IsLockedOut) { _logger.LogWarning("User account locked out."); return RedirectToPage("./Lockout"); } else { ModelState.AddModelError(string.Empty, "Invalid login attempt."); return Page(); } } // If we got this far, something failed, redisplay form return Page(); } } }