scaffolder เพื่อแสดงไฟล์ Register , Login , Logout

Configure Identity services

ติดตั้ง ASP.NET Core scaffolder

[code]
> dotnet tool install -g dotnet-aspnet-codegenerator
[/code]

เข้าไปใน project directory แล้วทำการ add package Microsoft.VisualStudio.Web.CodeGeneration.Design

[code]
> dotnet add package Microsoft.VisualStudio.Web.CodeGeneration.Design
> dotnet restore
[/code]

สั่ง scaffolder

ข้อควรระวังคือ -dc webAppIdentity.Data.ApplicationDbContext ต้องเป็นชื่อโปรเจ็กส์ที่ถูกต้องทั้งตัวพิมพ์เล็กพิมพ์ใหญ่
ไม่งั้นตอนรันจะ error ฟ้องว่ามี 2 schema

แสดงไฟล์ที่เกี่ยวข้องกับ Account.Register , Account.Login , Account.Logout ออกมา

[code]
> dotnet aspnet-codegenerator identity -dc webAppIdentity.Data.ApplicationDbContext –files "Account.Register;Account.Login;Account.Logout"
[/code]

หรือ scaffolder ไฟล์ทั้งหมดออกมาเลย (เยอะมาก)

[code]
> dotnet aspnet-codegenerator identity -dc webAppIdentity.Data.ApplicationDbContext
[/code]

แต่อย่าลืมกำหนดชื่อโปรเจ็กส์ด้วยนะ ในที่นี้ใช้ webAppIdentity

Areas/identity/Pages/Account/Register.cshtml.cs

using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Text.Encodings.Web;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Identity.UI.Services;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.Extensions.Logging;

namespace webAppIdentity.Areas.Identity.Pages.Account
{
    [AllowAnonymous]
    public class RegisterModel : PageModel
    {
        private readonly SignInManager<IdentityUser> _signInManager;
        private readonly UserManager<IdentityUser> _userManager;
        private readonly ILogger<RegisterModel> _logger;
        private readonly IEmailSender _emailSender;

        public RegisterModel(
            UserManager<IdentityUser> userManager,
            SignInManager<IdentityUser> signInManager,
            ILogger<RegisterModel> logger,
            IEmailSender emailSender)
        {
            _userManager = userManager;
            _signInManager = signInManager;
            _logger = logger;
            _emailSender = emailSender;
        }

        [BindProperty]
        public InputModel Input { get; set; }

        public string ReturnUrl { get; set; }

        public class InputModel
        {
            [Required]
            [EmailAddress]
            [Display(Name = "Email")]
            public string Email { get; set; }

            [Required]
            [StringLength(100, ErrorMessage = "The {0} must be at least {2} and at max {1} characters long.", MinimumLength = 6)]
            [DataType(DataType.Password)]
            [Display(Name = "Password")]
            public string Password { get; set; }

            [DataType(DataType.Password)]
            [Display(Name = "Confirm password")]
            [Compare("Password", ErrorMessage = "The password and confirmation password do not match.")]
            public string ConfirmPassword { get; set; }
        }

        public void OnGet(string returnUrl = null)
        {
            ReturnUrl = returnUrl;
        }

        public async Task<IActionResult> OnPostAsync(string returnUrl = null)
        {
            returnUrl = returnUrl ?? Url.Content("~/");
            if (ModelState.IsValid)
            {
                var user = new IdentityUser { UserName = Input.Email, Email = Input.Email };
                var result = await _userManager.CreateAsync(user, Input.Password);
                if (result.Succeeded)
                {
                    _logger.LogInformation("User created a new account with password.");

                    var code = await _userManager.GenerateEmailConfirmationTokenAsync(user);
                    var callbackUrl = Url.Page(
                        "/Account/ConfirmEmail",
                        pageHandler: null,
                        values: new { userId = user.Id, code = code },
                        protocol: Request.Scheme);

                    await _emailSender.SendEmailAsync(Input.Email, "Confirm your email",
                        $"Please confirm your account by <a href='{HtmlEncoder.Default.Encode(callbackUrl)}'>clicking here</a>.");

                    await _signInManager.SignInAsync(user, isPersistent: false);
                    return LocalRedirect(returnUrl);
                }
                foreach (var error in result.Errors)
                {
                    ModelState.AddModelError(string.Empty, error.Description);
                }
            }

            // If we got this far, something failed, redisplay form
            return Page();
        }
    }
}

using System;

using System.Collections.Generic;

using System.ComponentModel.DataAnnotations;

using System.Text.Encodings.Web;

using System.Threading.Tasks;

using Microsoft.AspNetCore.Authorization;

using Microsoft.AspNetCore.Identity;

using Microsoft.AspNetCore.Identity.UI.Services;

using Microsoft.AspNetCore.Mvc;

using Microsoft.AspNetCore.Mvc.RazorPages;

using Microsoft.Extensions.Logging;

namespace webAppIdentity.Areas.Identity.Pages.Account

{

[AllowAnonymous]

public class RegisterModel : PageModel

{

private readonly SignInManager<IdentityUser> _signInManager;

private readonly UserManager<IdentityUser> _userManager;

private readonly ILogger<RegisterModel> _logger;

private readonly IEmailSender _emailSender;

public RegisterModel(

UserManager<IdentityUser> userManager,

SignInManager<IdentityUser> signInManager,

ILogger<RegisterModel> logger,

IEmailSender emailSender)

{

_userManager = userManager;

_signInManager = signInManager;

_logger = logger;

_emailSender = emailSender;

}

[BindProperty]

public InputModel Input { get; set; }

public string ReturnUrl { get; set; }

public class InputModel

{

[Required]

[EmailAddress]

[Display(Name = "Email")]

public string Email { get; set; }

[Required]

[StringLength(100, ErrorMessage = "The {0} must be at least {2} and at max {1} characters long.", MinimumLength = 6)]

[DataType(DataType.Password)]

[Display(Name = "Password")]

public string Password { get; set; }

[DataType(DataType.Password)]

[Display(Name = "Confirm password")]

[Compare("Password", ErrorMessage = "The password and confirmation password do not match.")]

public string ConfirmPassword { get; set; }

}

public void OnGet(string returnUrl = null)

{

ReturnUrl = returnUrl;

}

public async Task<IActionResult> OnPostAsync(string returnUrl = null)

{

returnUrl = returnUrl ?? Url.Content("~/");

if (ModelState.IsValid)

{

var user = new IdentityUser { UserName = Input.Email, Email = Input.Email };

var result = await _userManager.CreateAsync(user, Input.Password);

if (result.Succeeded)

{

_logger.LogInformation("User created a new account with password.");

var code = await _userManager.GenerateEmailConfirmationTokenAsync(user);

var callbackUrl = Url.Page(

"/Account/ConfirmEmail",

pageHandler: null,

values: new { userId = user.Id, code = code },

protocol: Request.Scheme);

await _emailSender.SendEmailAsync(Input.Email, "Confirm your email",

$"Please confirm your account by <a href='{HtmlEncoder.Default.Encode(callbackUrl)}'>clicking here</a>.");

await _signInManager.SignInAsync(user, isPersistent: false);

return LocalRedirect(returnUrl);

}

foreach (var error in result.Errors)

{

ModelState.AddModelError(string.Empty, error.Description);

}

// If we got this far, something failed, redisplay form

return Page();

}

Areas/identity/Pages/Account/Login.cshtml.cs

using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.Extensions.Logging;

namespace webAppIdentity.Areas.Identity.Pages.Account
{
    [AllowAnonymous]
    public class LoginModel : PageModel
    {
        private readonly SignInManager<IdentityUser> _signInManager;
        private readonly ILogger<LoginModel> _logger;

        public LoginModel(SignInManager<IdentityUser> signInManager, ILogger<LoginModel> logger)
        {
            _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]
            [EmailAddress]
            public string Email { 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 = 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 = returnUrl ?? Url.Content("~/");

            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(Input.Email, Input.Password, Input.RememberMe, lockoutOnFailure: true);
                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();
        }
    }
}

100

101

102

using System;

using System.Collections.Generic;

using System.ComponentModel.DataAnnotations;

using System.Linq;

using System.Threading.Tasks;

using Microsoft.AspNetCore.Authorization;

using Microsoft.AspNetCore.Authentication;

using Microsoft.AspNetCore.Identity;

using Microsoft.AspNetCore.Mvc;

using Microsoft.AspNetCore.Mvc.RazorPages;

using Microsoft.Extensions.Logging;

namespace webAppIdentity.Areas.Identity.Pages.Account

{

[AllowAnonymous]

public class LoginModel : PageModel

{

private readonly SignInManager<IdentityUser> _signInManager;

private readonly ILogger<LoginModel> _logger;

public LoginModel(SignInManager<IdentityUser> signInManager, ILogger<LoginModel> logger)

{

_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]

[EmailAddress]

public string Email { 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 = 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 = returnUrl ?? Url.Content("~/");

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(Input.Email, Input.Password, Input.RememberMe, lockoutOnFailure: true);

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();

}

Areas/identity/Pages/Account/Logout.cshtml.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.Extensions.Logging;

namespace webAppIdentity.Areas.Identity.Pages.Account
{
    [AllowAnonymous]
    public class LogoutModel : PageModel
    {
        private readonly SignInManager<IdentityUser> _signInManager;
        private readonly ILogger<LogoutModel> _logger;

        public LogoutModel(SignInManager<IdentityUser> signInManager, ILogger<LogoutModel> logger)
        {
            _signInManager = signInManager;
            _logger = logger;
        }

        public void OnGet()
        {
        }

        public async Task<IActionResult> OnPost(string returnUrl = null)
        {
            await _signInManager.SignOutAsync();
            _logger.LogInformation("User logged out.");
            if (returnUrl != null)
            {
                return LocalRedirect(returnUrl);
            }
            else
            {
                return Page();
            }
        }
    }
}

using System;

using System.Collections.Generic;

using System.Linq;

using System.Threading.Tasks;

using Microsoft.AspNetCore.Authorization;

using Microsoft.AspNetCore.Identity;

using Microsoft.AspNetCore.Mvc;

using Microsoft.AspNetCore.Mvc.RazorPages;

using Microsoft.Extensions.Logging;

namespace webAppIdentity.Areas.Identity.Pages.Account

{

[AllowAnonymous]

public class LogoutModel : PageModel

{

private readonly SignInManager<IdentityUser> _signInManager;

private readonly ILogger<LogoutModel> _logger;

public LogoutModel(SignInManager<IdentityUser> signInManager, ILogger<LogoutModel> logger)

{

_signInManager = signInManager;

_logger = logger;

}

public void OnGet()

{

}

public async Task<IActionResult> OnPost(string returnUrl = null)

{

await _signInManager.SignOutAsync();

_logger.LogInformation("User logged out.");

if (returnUrl != null)

{

return LocalRedirect(returnUrl);

}

else

{

return Page();

}

รายชื่อไฟล์ที่สามารถเรียกออกมาได้

[code]
Account.Register
Account.Login
Account.Logout

Account.AccessDenied
Account.ConfirmEmail
Account.ExternalLogin
Account.ForgotPassword
Account.ForgotPasswordConfirmation
Account.LoginWith2fa
Account.LoginWithRecoveryCode
Account.ResetPassword
Account.ResetPasswordConfirmation

Account.Manage.ChangePassword
Account.Manage.DeletePersonalData
Account.Manage.Disable2fa
Account.Manage.DownloadPersonalData
Account.Manage.EnableAuthenticator
Account.Manage.ExternalLogins
Account.Manage.GenerateRecoveryCodes
Account.Manage.Index
Account.Manage.PersonalData
Account.Manage.ResetAuthenticator
Account.Manage.SetPassword
Account.Manage.TwoFactorAuthentication
[/code]

Link

Scaffold Identity in ASP.NET Core projects

Phaisarn Sutheebanjard

blog.phaisarn.com

scaffolder เพื่อแสดงไฟล์ Register , Login , Logout