遵循官方文档（https://github.com/rustd/AspnetIdentitySample）和NuGet包，我在为MVC5应用程序重置密码后遇到登录问题。似乎实体框架不会在此过程中刷新其上下文，只有在我重新启动应用程序后才能使用正确的凭据登录。
据我所知，我已经完成了代码示例所做的所有事情。只有我有更多的代码和设置（例如Unity）。
这是问题所在：
public async Task<ActionResult> Login(LoginViewModel model, string returnUrl)
{
try
{
if (ModelState.IsValid)
{
ApplicationUser user = await UserManager.FindAsync(model.UserName, model.Password);
if (user != null)
{
await this.SignInAsync(user, false);
return RedirectToLocal(returnUrl);
}
else
{
model.State = ViewModelState.Error;
model.Messages = new List<string>() { "No access buddy!" };
}
}
// If we got this far, something failed, redisplay form
return View(model);
}
catch (Exception ex)
{
throw;
}
}
private async Task SignInAsync(ApplicationUser user, bool isPersistent)
{
AuthenticationManager.SignOut(DefaultAuthenticationTypes.ExternalCookie);
ClaimsIdentity identity = await UserManager.CreateIdentityAsync(user, DefaultAuthenticationTypes.ApplicationCookie);
AuthenticationManager.SignIn(new AuthenticationProperties() { IsPersistent = isPersistent }, identity);
}
这部分在我第一次登录时非常有效。但是，在我重置密码后，无法使用新凭据登录（它仍然需要旧版本）。
这是我的配置：
public class ApplicationUserManager : UserManager<ApplicationUser>
{
#region Constructor
public ApplicationUserManager(IUserStore<ApplicationUser> store)
: base(store)
{
this.UserTokenProvider = new TotpSecurityStampBasedTokenProvider<ApplicationUser, string>();
}
#endregion Constructor
#region Methods
public static ApplicationUserManager Create(IdentityFactoryOptions<ApplicationUserManager> options, IOwinContext context)
{
ApplicationUserManager manager = new ApplicationUserManager(new UserStore<ApplicationUser>(context.Get<SecurityDbContext>()));
manager.UserValidator = new UserValidator<ApplicationUser>(manager)
{
AllowOnlyAlphanumericUserNames = false,
RequireUniqueEmail = true
};
// Configure validation logic for passwords
manager.PasswordValidator = new PasswordValidator
{
RequiredLength = 6,
RequireNonLetterOrDigit = true,
RequireDigit = true,
RequireLowercase = true,
RequireUppercase = true,
};
// Configure user lockout defaults
manager.UserLockoutEnabledByDefault = true;
manager.DefaultAccountLockoutTimeSpan = TimeSpan.FromMinutes(5);
manager.MaxFailedAccessAttemptsBeforeLockout = 5;
// Register two factor authentication providers. This application uses Phone and Emails as a step of receiving a code for verifying the user
// You can write your own provider and plug it in here.
manager.RegisterTwoFactorProvider("Phone Code", new PhoneNumberTokenProvider<ApplicationUser>
{
MessageFormat = "Your security code is {0}"
});
manager.RegisterTwoFactorProvider("Email Code", new EmailTokenProvider<ApplicationUser>
{
Subject = "Security Code",
BodyFormat = "Your security code is {0}"
});
manager.EmailService = new EmailService();
manager.SmsService = new SmsService();
var dataProtectionProvider = options.DataProtectionProvider;
if (dataProtectionProvider != null)
{
manager.UserTokenProvider = new DataProtectorTokenProvider<ApplicationUser>(dataProtectionProvider.Create("ASP.NET Identity"));
}
return manager;
}
#endregion Methods
}
这是我在启动期间配置的：
// Configure the db context, user manager and signin manager to use a single instance per request
app.CreatePerOwinContext(SecurityDbContext.Create);
app.CreatePerOwinContext<ApplicationUserManager>(ApplicationUserManager.Create);
app.CreatePerOwinContext<ApplicationSignInManager>(ApplicationSignInManager.Create);
// Enable the application to use a cookie to store information for the signed in user
// and to use a cookie to temporarily store information about a user logging in with a third party login provider
// Configure the sign in cookie
app.UseCookieAuthentication(new CookieAuthenticationOptions
{
AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
LoginPath = new PathString("/Account/Login"),
Provider = new CookieAuthenticationProvider
{
// Enables the application to validate the security stamp when the user logs in.
// This is a security feature which is used when you change a password or add an external login to your account.
OnValidateIdentity = SecurityStampValidator.OnValidateIdentity<ApplicationUserManager, ApplicationUser>(
validateInterval: TimeSpan.FromMinutes(30),
regenerateIdentity: (manager, user) => user.GenerateUserIdentityAsync(manager))
}
});
app.UseExternalSignInCookie(DefaultAuthenticationTypes.ExternalCookie);
app.SetDefaultSignInAsAuthenticationType(CookieAuthenticationDefaults.AuthenticationType);
app.UseCookieAuthentication(new CookieAuthenticationOptions { });
最终，在几个屏幕之后，用户最终会在这里创建一个新密码：
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<ActionResult> ResetPassword(ResetPasswordViewModel model)
{
if (!ModelState.IsValid)
{
return View(model);
}
ApplicationUser user = await UserManager.FindByEmailAsync(model.Email);
if (user == null)
{
// Don't reveal that the user does not exist
return RedirectToAction("ResetPasswordConfirmation", "Account");
}
IdentityResult result = await UserManager.ResetPasswordAsync(user.Id, model.Code, model.Password);
if (result.Succeeded)
{
return RedirectToAction("ResetPasswordConfirmation", "Account");
}
else
{
AddErrors(result);
return View();
}
}
此处也没有错误，它将新的散列值和安全标记存储在数据库中。我正在考虑一些在重置密码时没有刷新的缓存，cookie或dbContext。
有没有人有任何想法？
答案 0 :(得分：1)
好的，所以我终于找到了这种奇怪行为的原因。我有以下DbConfiguration：
public class Configuration : DbConfiguration
{
public Configuration()
{
CacheTransactionHandler transactionHandler = new CacheTransactionHandler(new InMemoryCache());
this.AddInterceptor(transactionHandler);
Loaded += (sender, args) =>
{
args.ReplaceService<DbProviderServices>((s, _) => new CachingProviderServices(s, transactionHandler));
};
}
}
注释回调做了诀窍，这听起来合乎逻辑，因为我用二级缓存替换标准DbProviderServices（由https://efcache.codeplex.com/提供）
更新
没有必要完全删除第二级缓存。相反，通过添加缓存提供程序，我可以选择要缓存的表（以及缓存时间）。这是更新的代码：
public class Configuration : DbConfiguration
{
public Configuration()
{
CacheTransactionHandler transactionHandler = new CacheTransactionHandler(new InMemoryCache());
this.AddInterceptor(transactionHandler);
MyCachingPolicy cachingPolicy = new MyCachingPolicy();
Loaded += (sender, args) =>
{
args.ReplaceService<DbProviderServices>((s, _) => new CachingProviderServices(s, transactionHandler, cachingPolicy));
};
}
}
internal class MyCachingPolicy : CachingPolicy
{
#region Constructor
internal MyCachingPolicy()
{
this.NonCachableTables = new List<string>()
{
"AspNetUsers",
"Resource",
"Task",
"Appointment"
};
}
#endregion Constructor
#region Properties
private List<string> NonCachableTables { get; set; }
#endregion Properties
#region Methods
#endregion Methods
protected override bool CanBeCached(ReadOnlyCollection<EntitySetBase> affectedEntitySets, string sql, IEnumerable<KeyValuePair<string, object>> parameters)
{
return !affectedEntitySets.Select(e => e.Table ?? e.Name).Any(tableName => this.NonCachableTables.Contains(tableName));
}
protected override void GetCacheableRows(ReadOnlyCollection<EntitySetBase> affectedEntitySets, out int minCacheableRows, out int maxCacheableRows)
{
base.GetCacheableRows(affectedEntitySets, out minCacheableRows, out maxCacheableRows);
}
protected override void GetExpirationTimeout(ReadOnlyCollection<EntitySetBase> affectedEntitySets, out TimeSpan slidingExpiration, out DateTimeOffset absoluteExpiration)
{
base.GetExpirationTimeout(affectedEntitySets, out slidingExpiration, out absoluteExpiration);
}
}