-
Notifications
You must be signed in to change notification settings - Fork 64
/
AccountController.cs
785 lines (700 loc) · 30.9 KB
/
AccountController.cs
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
using System;
using System.Linq;
using System.Security.Claims;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.Rendering;
using Microsoft.Extensions.Logging;
using StsServerIdentity.Models.AccountViewModels;
using StsServerIdentity.Models;
using IdentityServer4.Services;
using IdentityServer4.Stores;
using IdentityModel;
using IdentityServer4;
using IdentityServer4.Extensions;
using StsServerIdentity.Services;
using Microsoft.Extensions.Localization;
using StsServerIdentity.Resources;
using System.Reflection;
using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.WebUtilities;
using System.Text;
using System.Text.Encodings.Web;
namespace StsServerIdentity.Controllers
{
[Authorize]
public class AccountController : Controller
{
private readonly Fido2Storage _fido2Storage;
private readonly UserManager<ApplicationUser> _userManager;
private readonly SignInManager<ApplicationUser> _signInManager;
private readonly IEmailSender _emailSender;
private readonly ILogger _logger;
private readonly IIdentityServerInteractionService _interaction;
private readonly IClientStore _clientStore;
private readonly IPersistedGrantService _persistedGrantService;
private readonly IStringLocalizer _sharedLocalizer;
private readonly IAuthenticationSchemeProvider _schemeProvider;
private readonly IEventService _events;
public AccountController(
UserManager<ApplicationUser> userManager,
IPersistedGrantService persistedGrantService,
SignInManager<ApplicationUser> signInManager,
IEmailSender emailSender,
ILoggerFactory loggerFactory,
IIdentityServerInteractionService interaction,
IClientStore clientStore,
IStringLocalizerFactory factory,
Fido2Storage fido2Storage,
IAuthenticationSchemeProvider schemeProvider,
IEventService events)
{
_fido2Storage = fido2Storage;
_userManager = userManager;
_persistedGrantService = persistedGrantService;
_signInManager = signInManager;
_emailSender = emailSender;
_logger = loggerFactory.CreateLogger<AccountController>();
_interaction = interaction;
_clientStore = clientStore;
_schemeProvider = schemeProvider;
_events = events;
var type = typeof(SharedResource);
var assemblyName = new AssemblyName(type.GetTypeInfo().Assembly.FullName);
_sharedLocalizer = factory.Create("SharedResource", assemblyName.Name);
}
[HttpGet]
[AllowAnonymous]
public async Task<IActionResult> Login(string returnUrl)
{
// build a model so we know what to show on the login page
var vm = await BuildLoginViewModelAsync(returnUrl);
if (vm.IsExternalLoginOnly)
{
// we only have one option for logging in and it's an external provider
return ExternalLogin(vm.ExternalProviders.First().AuthenticationScheme, returnUrl);
}
return View(vm);
}
//
// POST: /Account/Login
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<IActionResult> Login(LoginInputModel model)
{
var returnUrl = model.ReturnUrl;
var context = await _interaction.GetAuthorizationContextAsync(returnUrl);
var requires2Fa = context?.AcrValues.Count(t => t.Contains("mfa")) >= 1;
var user = await _userManager.FindByNameAsync(model.Email);
if (user != null && !user.TwoFactorEnabled && requires2Fa)
{
return RedirectToAction(nameof(ErrorEnable2FA));
}
ViewData["ReturnUrl"] = returnUrl;
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(model.Email, model.Password, model.RememberLogin, lockoutOnFailure: false);
if (result.Succeeded)
{
_logger.LogInformation(1, "User logged in.");
return RedirectToLocal(returnUrl);
}
if (result.RequiresTwoFactor)
{
var fido2ItemExistsForUser = await _fido2Storage.GetCredentialsByUsername(model.Email);
if (fido2ItemExistsForUser.Count > 0)
{
return RedirectToAction(nameof(LoginFido2Mfa), new { ReturnUrl = returnUrl, RememberMe = model.RememberLogin });
}
else
{
return RedirectToAction(nameof(VerifyCode), new { ReturnUrl = returnUrl, RememberMe = model.RememberLogin });
}
}
if (result.IsLockedOut)
{
_logger.LogWarning(2, "User account locked out.");
return View("Lockout");
}
else
{
ModelState.AddModelError(string.Empty, _sharedLocalizer["INVALID_LOGIN_ATTEMPT"]);
return View(await BuildLoginViewModelAsync(model));
}
}
// If we got this far, something failed, redisplay form
return View(await BuildLoginViewModelAsync(model));
}
[HttpGet]
[AllowAnonymous]
public async Task<IActionResult> LoginFido2Mfa(string provider, bool rememberMe, string returnUrl = null)
{
// Require that the user has already logged in via username/password or external login
var user = await _signInManager.GetTwoFactorAuthenticationUserAsync();
if (user == null)
{
return View("Error");
}
if (string.IsNullOrEmpty(provider))
{
provider = "fido2";
}
return View(new MfaModel { /*Provider = provider,*/ ReturnUrl = returnUrl, RememberMe = rememberMe });
}
[HttpGet]
[AllowAnonymous]
public IActionResult ErrorEnable2FA()
{
return View();
}
[HttpGet]
public async Task<IActionResult> Logout(string logoutId)
{
// build a model so the logout page knows what to display
var vm = await BuildLogoutViewModelAsync(logoutId);
if (vm.ShowLogoutPrompt == false)
{
// if the request for logout was properly authenticated from IdentityServer, then
// we don't need to show the prompt and can just log the user out directly.
return await Logout(vm);
}
return View(vm);
}
/// <summary>
/// Handle logout page postback
/// </summary>
[HttpPost]
[ValidateAntiForgeryToken]
public async Task<IActionResult> Logout(LogoutViewModel model)
{
var idp = User?.FindFirst(JwtClaimTypes.IdentityProvider)?.Value;
var subjectId = HttpContext.User.Identity.GetSubjectId();
if (idp != null && idp != IdentityServerConstants.LocalIdentityProvider)
{
if (model.LogoutId == null)
{
// if there's no current logout context, we need to create one
// this captures necessary info from the current logged in user
// before we signout and redirect away to the external IdP for signout
model.LogoutId = await _interaction.CreateLogoutContextAsync();
}
// string url = "/Account/Logout?logoutId=" + model.LogoutId;
try
{
await _signInManager.SignOutAsync();
// await HttpContext.Authentication.SignOutAsync(idp, new AuthenticationProperties { RedirectUri = url });
}
catch (NotSupportedException)
{
}
}
// delete authentication cookie
await _signInManager.SignOutAsync();
// set this so UI rendering sees an anonymous user
HttpContext.User = new ClaimsPrincipal(new ClaimsIdentity());
// get context information (client name, post logout redirect URI and iframe for federated signout)
var logout = await _interaction.GetLogoutContextAsync(model.LogoutId);
var vm = new LoggedOutViewModel
{
AutomaticRedirectAfterSignOut = AccountOptions.AutomaticRedirectAfterSignOut,
PostLogoutRedirectUri = logout?.PostLogoutRedirectUri,
ClientName = string.IsNullOrEmpty(logout?.ClientName) ? logout?.ClientId : logout?.ClientName,
SignOutIframeUrl = logout?.SignOutIFrameUrl,
LogoutId = model.LogoutId
};
await _persistedGrantService.RemoveAllGrantsAsync(subjectId, "angular2client");
return View("LoggedOut", vm);
}
//
// GET: /Account/Register
[HttpGet]
[AllowAnonymous]
public IActionResult Register(string returnUrl = null)
{
ViewData["ReturnUrl"] = returnUrl;
return View();
}
//
// POST: /Account/Register
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<IActionResult> Register(RegisterViewModel model, string returnUrl = null)
{
ViewData["ReturnUrl"] = returnUrl;
if (ModelState.IsValid)
{
var user = new ApplicationUser
{
UserName = model.Email,
Email = model.Email,
IsAdmin = false
};
var result = await _userManager.CreateAsync(user, model.Password);
if (result.Succeeded)
{
//var code = await _userManager.GenerateEmailConfirmationTokenAsync(user);
// WebEncoders.Base64UrlEncode(Encoding.UTF8.GetBytes(code));
//var callbackUrl = Url.Action("ConfirmEmail", "Account", new { userId = user.Id, code = code }, protocol: HttpContext.Request.Scheme);
//await _emailSender.SendEmailAsync(model.Email, "Confirm your account",
// $"Please confirm your account by clicking this link: <a href='{HtmlEncoder.Default.Encode(callbackUrl)}'>link</a>");
//await _signInManager.SignInAsync(user, isPersistent: false);
//_logger.LogInformation(3, "User created a new account with password.");
return RedirectToLocal(returnUrl);
}
AddErrors(result);
}
// If we got this far, something failed, redisplay form
return View(model);
}
//
// POST: /Account/ExternalLogin
//[ValidateAntiForgeryToken]
[HttpPost]
[HttpGet]
[AllowAnonymous]
public IActionResult ExternalLogin(string provider, string returnUrl = null)
{
// Request a redirect to the external login provider.
var redirectUrl = Url.Action("ExternalLoginCallback", "Account", new { ReturnUrl = returnUrl });
var properties = _signInManager.ConfigureExternalAuthenticationProperties(provider, redirectUrl);
return Challenge(properties, provider);
}
//
// GET: /Account/ExternalLoginCallback
[HttpGet]
[AllowAnonymous]
public async Task<IActionResult> ExternalLoginCallback(string returnUrl = null, string remoteError = null)
{
var context = await _interaction.GetAuthorizationContextAsync(returnUrl);
var requires2Fa = context?.AcrValues.Count(t => t.Contains("mfa")) >= 1;
if (remoteError != null)
{
ModelState.AddModelError(string.Empty, _sharedLocalizer["EXTERNAL_PROVIDER_ERROR", remoteError]);
return View(nameof(Login));
}
var info = await _signInManager.GetExternalLoginInfoAsync();
if (info == null)
{
return RedirectToAction(nameof(Login));
}
var email = info.Principal.FindFirstValue(ClaimTypes.Email);
if (!string.IsNullOrEmpty(email))
{
var user = await _userManager.FindByNameAsync(email);
if (user != null && !user.TwoFactorEnabled && requires2Fa)
{
return RedirectToAction(nameof(ErrorEnable2FA));
}
}
// Sign in the user with this external login provider if the user already has a login.
var result = await _signInManager.ExternalLoginSignInAsync(info.LoginProvider, info.ProviderKey, isPersistent: false);
if (result.Succeeded)
{
_logger.LogInformation(5, "User logged in with {Name} provider.", info.LoginProvider);
return RedirectToLocal(returnUrl);
}
if (result.RequiresTwoFactor)
{
var fido2ItemExistsForUser = await _fido2Storage.GetCredentialsByUsername(email);
if (fido2ItemExistsForUser.Count > 0)
{
return RedirectToAction(nameof(LoginFido2Mfa), new { ReturnUrl = returnUrl });
}
else
{
return RedirectToAction(nameof(SendCode), new { ReturnUrl = returnUrl });
}
}
if (result.IsLockedOut)
{
return View("Lockout");
}
else
{
// If the user does not have an account, then ask the user to create an account.
ViewData["ReturnUrl"] = returnUrl;
ViewData["LoginProvider"] = info.LoginProvider;
//var email = info.Principal.FindFirstValue(ClaimTypes.Email);
return View("ExternalLoginConfirmation", new ExternalLoginConfirmationViewModel { Email = email });
}
}
//
// POST: /Account/ExternalLoginConfirmation
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<IActionResult> ExternalLoginConfirmation(ExternalLoginConfirmationViewModel model, string returnUrl = null, string loginProvider = null)
{
if (ModelState.IsValid)
{
// Get the information about the user from the external login provider
var info = await _signInManager.GetExternalLoginInfoAsync();
if (info == null)
{
return View("ExternalLoginFailure");
}
var user = new ApplicationUser { UserName = model.Email, Email = model.Email };
var result = await _userManager.CreateAsync(user);
if (result.Succeeded)
{
result = await _userManager.AddLoginAsync(user, info);
if (result.Succeeded)
{
await _signInManager.SignInAsync(user, isPersistent: false);
_logger.LogInformation(6, "User created an account using {Name} provider.", info.LoginProvider);
return RedirectToLocal(returnUrl);
}
}
AddErrors(result);
}
ViewData["ReturnUrl"] = returnUrl;
ViewData["LoginProvider"] = loginProvider;
return View(model);
}
// GET: /Account/ConfirmEmail
[HttpGet]
[AllowAnonymous]
public async Task<IActionResult> ConfirmEmail(string userId, string code)
{
if (userId == null || code == null)
{
return View("Error");
}
var user = await _userManager.FindByIdAsync(userId);
if (user == null)
{
return View("Error");
}
code = Encoding.UTF8.GetString(WebEncoders.Base64UrlDecode(code));
var result = await _userManager.ConfirmEmailAsync(user, code);
return View(result.Succeeded ? "ConfirmEmail" : "Error");
}
//
// GET: /Account/ForgotPassword
[HttpGet]
[AllowAnonymous]
public IActionResult ForgotPassword()
{
return View();
}
//
// POST: /Account/ForgotPassword
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<IActionResult> ForgotPassword(ForgotPasswordViewModel model)
{
if (ModelState.IsValid)
{
var user = await _userManager.FindByNameAsync(model.Email);
// TODO add this is all users need to be validated
// if (user == null || !(await _userManager.IsEmailConfirmedAsync(user)))
if (user == null)
{
// Don't reveal that the user does not exist or is not confirmed
return View("ForgotPasswordConfirmation");
}
// For more information on how to enable account confirmation and password reset please visit http://go.microsoft.com/fwlink/?LinkID=532713
// Send an email with this link
var code = await _userManager.GeneratePasswordResetTokenAsync(user);
code = WebEncoders.Base64UrlEncode(Encoding.UTF8.GetBytes(code));
var callbackUrl = Url.Action("ResetPassword", "Account", new { userId = user.Id, code = code }, protocol: HttpContext.Request.Scheme);
await _emailSender.SendEmail(
model.Email,
"Reset Password",
$"Please reset your password by clicking here: {HtmlEncoder.Default.Encode(callbackUrl)}",
"Hi Sir");
return View("ForgotPasswordConfirmation");
}
// If we got this far, something failed, redisplay form
return View(model);
}
//
// GET: /Account/ForgotPasswordConfirmation
[HttpGet]
[AllowAnonymous]
public IActionResult ForgotPasswordConfirmation()
{
return View();
}
//
// GET: /Account/ResetPassword
[HttpGet]
[AllowAnonymous]
public IActionResult ResetPassword(string code = null)
{
return code == null ? View("Error") : View();
}
//
// POST: /Account/ResetPassword
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<IActionResult> ResetPassword(ResetPasswordViewModel model)
{
if (!ModelState.IsValid)
{
return View(model);
}
var user = await _userManager.FindByNameAsync(model.Email);
if (user == null)
{
// Don't reveal that the user does not exist
return RedirectToAction(nameof(AccountController.ResetPasswordConfirmation), "Account");
}
var code = Encoding.UTF8.GetString(WebEncoders.Base64UrlDecode(model.Code));
var result = await _userManager.ResetPasswordAsync(user, code, model.Password);
if (result.Succeeded)
{
return RedirectToAction(nameof(AccountController.ResetPasswordConfirmation), "Account");
}
AddErrors(result);
return View();
}
//
// GET: /Account/ResetPasswordConfirmation
[HttpGet]
[AllowAnonymous]
public IActionResult ResetPasswordConfirmation()
{
return View();
}
//
// GET: /Account/SendCode
[HttpGet]
[AllowAnonymous]
public async Task<ActionResult> SendCode(string returnUrl = null, bool rememberMe = false)
{
var user = await _signInManager.GetTwoFactorAuthenticationUserAsync();
if (user == null)
{
return View("Error");
}
var userFactors = await _userManager.GetValidTwoFactorProvidersAsync(user);
var factorOptions = userFactors.Select(purpose => new SelectListItem { Text = purpose, Value = purpose }).ToList();
return View(new SendCodeViewModel { Providers = factorOptions, ReturnUrl = returnUrl, RememberMe = rememberMe });
}
//
// POST: /Account/SendCode
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<IActionResult> SendCode(SendCodeViewModel model)
{
if (!ModelState.IsValid)
{
return View();
}
var user = await _signInManager.GetTwoFactorAuthenticationUserAsync();
if (user == null)
{
return View("Error");
}
if (model.SelectedProvider == "Authenticator")
{
return RedirectToAction(nameof(VerifyCode), new { Provider = model.SelectedProvider, ReturnUrl = model.ReturnUrl, RememberMe = model.RememberMe });
}
// Email used
// Generate the token and send it
var code = await _userManager.GenerateTwoFactorTokenAsync(user, model.SelectedProvider);
code = WebEncoders.Base64UrlEncode(Encoding.UTF8.GetBytes(code));
if (string.IsNullOrWhiteSpace(code))
{
return View("Error");
}
var message = "Your security code is: " + code;
if (model.SelectedProvider == "Email")
{
await _emailSender.SendEmail(await _userManager.GetEmailAsync(user), "Security Code", message, "Hi Sir");
}
return RedirectToAction(nameof(VerifyCode), new { Provider = model.SelectedProvider, ReturnUrl = model.ReturnUrl, RememberMe = model.RememberMe });
}
//
// GET: /Account/VerifyCode
[HttpGet]
[AllowAnonymous]
public async Task<IActionResult> VerifyCode(string provider, bool rememberMe, string returnUrl = null)
{
// Require that the user has already logged in via username/password or external login
var user = await _signInManager.GetTwoFactorAuthenticationUserAsync();
if (user == null)
{
return View("Error");
}
if (string.IsNullOrEmpty(provider))
{
provider = "Authenticator";
}
return View(new VerifyCodeViewModel { Provider = provider, ReturnUrl = returnUrl, RememberMe = rememberMe });
}
//
// POST: /Account/VerifyCode
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<IActionResult> VerifyCode(VerifyCodeViewModel model)
{
if (!ModelState.IsValid)
{
return View(model);
}
if (string.IsNullOrEmpty(model.Provider))
{
model.Provider = "Authenticator";
}
// The following code protects for brute force attacks against the two factor codes.
// If a user enters incorrect codes for a specified amount of time then the user account
// will be locked out for a specified amount of time.
var result = await _signInManager.TwoFactorSignInAsync(model.Provider, model.Code, model.RememberMe, model.RememberBrowser);
if (result.Succeeded)
{
return RedirectToLocal(model.ReturnUrl);
}
if (result.IsLockedOut)
{
_logger.LogWarning(7, "User account locked out.");
return View("Lockout");
}
else
{
ModelState.AddModelError(string.Empty, _sharedLocalizer["INVALID_CODE"]);
return View(model);
}
}
private async Task<LoginViewModel> BuildLoginViewModelAsync(string returnUrl)
{
var context = await _interaction.GetAuthorizationContextAsync(returnUrl);
if (context?.IdP != null && await _schemeProvider.GetSchemeAsync(context.IdP) != null)
{
var local = context.IdP == IdentityServer4.IdentityServerConstants.LocalIdentityProvider;
// this is meant to short circuit the UI and only trigger the one external IdP
var vm = new LoginViewModel
{
EnableLocalLogin = local,
ReturnUrl = returnUrl,
Email = context?.LoginHint,
};
if (!local)
{
vm.ExternalProviders = new[] { new ExternalProvider { AuthenticationScheme = context.IdP } };
}
return vm;
}
var schemes = await _schemeProvider.GetAllSchemesAsync();
var providers = schemes
.Where(x => x.DisplayName != null)
.Select(x => new ExternalProvider
{
DisplayName = x.DisplayName ?? x.Name,
AuthenticationScheme = x.Name
}).ToList();
var allowLocal = true;
if (context?.Client.ClientId != null)
{
var client = await _clientStore.FindEnabledClientByIdAsync(context.Client.ClientId);
if (client != null)
{
allowLocal = client.EnableLocalLogin;
if (client.IdentityProviderRestrictions != null && client.IdentityProviderRestrictions.Any())
{
providers = providers.Where(provider => client.IdentityProviderRestrictions.Contains(provider.AuthenticationScheme)).ToList();
}
}
}
return new LoginViewModel
{
AllowRememberLogin = AccountOptions.AllowRememberLogin,
EnableLocalLogin = allowLocal && AccountOptions.AllowLocalLogin,
ReturnUrl = returnUrl,
Email = context?.LoginHint,
ExternalProviders = providers.ToArray()
};
}
private async Task<LoginViewModel> BuildLoginViewModelAsync(LoginInputModel model)
{
var vm = await BuildLoginViewModelAsync(model.ReturnUrl);
vm.Email = model.Email;
vm.RememberLogin = model.RememberLogin;
return vm;
}
private async Task<LogoutViewModel> BuildLogoutViewModelAsync(string logoutId)
{
var vm = new LogoutViewModel { LogoutId = logoutId, ShowLogoutPrompt = AccountOptions.ShowLogoutPrompt };
if (User?.Identity.IsAuthenticated != true)
{
// if the user is not authenticated, then just show logged out page
vm.ShowLogoutPrompt = false;
return vm;
}
var context = await _interaction.GetLogoutContextAsync(logoutId);
if (context?.ShowSignoutPrompt == false)
{
// it's safe to automatically sign-out
vm.ShowLogoutPrompt = false;
return vm;
}
// show the logout prompt. this prevents attacks where the user
// is automatically signed out by another malicious web page.
return vm;
}
private async Task<LoggedOutViewModel> BuildLoggedOutViewModelAsync(string logoutId)
{
// get context information (client name, post logout redirect URI and iframe for federated signout)
var logout = await _interaction.GetLogoutContextAsync(logoutId);
var vm = new LoggedOutViewModel
{
AutomaticRedirectAfterSignOut = AccountOptions.AutomaticRedirectAfterSignOut,
PostLogoutRedirectUri = logout?.PostLogoutRedirectUri,
ClientName = string.IsNullOrEmpty(logout?.ClientName) ? logout?.ClientId : logout?.ClientName,
SignOutIframeUrl = logout?.SignOutIFrameUrl,
LogoutId = logoutId
};
if (User?.Identity.IsAuthenticated == true)
{
var idp = User.FindFirst(JwtClaimTypes.IdentityProvider)?.Value;
if (idp != null && idp != IdentityServer4.IdentityServerConstants.LocalIdentityProvider)
{
var providerSupportsSignout = await HttpContext.GetSchemeSupportsSignOutAsync(idp);
if (providerSupportsSignout)
{
if (vm.LogoutId == null)
{
// if there's no current logout context, we need to create one
// this captures necessary info from the current logged in user
// before we signout and redirect away to the external IdP for signout
vm.LogoutId = await _interaction.CreateLogoutContextAsync();
}
vm.ExternalAuthenticationScheme = idp;
}
}
}
return vm;
}
#region Helpers
private void AddErrors(IdentityResult result)
{
foreach (var error in result.Errors)
{
ModelState.AddModelError(string.Empty, error.Description);
}
}
private IActionResult RedirectToLocal(string returnUrl)
{
if (Url.IsLocalUrl(returnUrl))
{
return Redirect(returnUrl);
}
else
{
return RedirectToAction(nameof(HomeController.Index), "Home");
}
}
#endregion
}
}