How to configure ASP.NET Identity ApplicationUserManager with StructureMap - asp.net-mvc

Question

I am using asp.net identity in my project and using structuremap as DI framework. the problem is when i use constructor injection then ApplicationUserManager not configured all of it's members e.g TokenProvider, ...
this is my ApplicationUserManager class:
public class ApplicationUserManager : UserManager<User, long>
{
public ApplicationUserManager(IUserStore<User, long> store)
: base(store)
{
}
public static ApplicationUserManager Create(IdentityFactoryOptions<ApplicationUserManager> options, IOwinContext context)
{
var manager = new ApplicationUserManager(new CustomUserStore(context.Get<InsuranceManagementContext>()));
// Configure the application user manager
manager.UserValidator = new UserValidator<User, long>(manager)
{
AllowOnlyAlphanumericUserNames = false,
RequireUniqueEmail = false
};
manager.PasswordValidator = new PasswordValidator
{
RequireDigit = true,
RequiredLength = 8,
RequireLowercase = false,
RequireNonLetterOrDigit = true,
RequireUppercase = false
};
var dataProtectionProvider = options.DataProtectionProvider;
if (dataProtectionProvider != null)
{
manager.UserTokenProvider =
new DataProtectorTokenProvider<User, long>(dataProtectionProvider.Create("TEST"));
}
return manager;
}
}
this is Startup.Auth class:
public partial class Startup
{
// For more information on configuring authentication, please visit http://go.microsoft.com/fwlink/?LinkId=301864
public void ConfigureAuth(IAppBuilder app)
{
app.CreatePerOwinContext(InsuranceManagementContext.Create);
app.CreatePerOwinContext<ApplicationUserManager>(ApplicationUserManager.Create);
// Enable the application to use a cookie to store information for the signed in user
app.UseCookieAuthentication(new CookieAuthenticationOptions
{
ExpireTimeSpan = TimeSpan.FromHours(2.0),
AuthenticationMode = Microsoft.Owin.Security.AuthenticationMode.Active,
AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
LoginPath = new PathString("/Account/Login"),
});
}
}
and its my AccountController:
public class AccountController : BaseController
{
private ApplicationUserManager _userManager;
public ApplicationUserManager UserManager
{
get
{
return _userManager ?? HttpContext.GetOwinContext().GetUserManager<ApplicationUserManager>();
}
private set
{
_userManager = value;
}
}
public AccountController(ApplicationUserManager userManager)
{
UserManager = userManager;
}
}
my question is how can i configure my ApplicationUserManager with structuremap?
if i set it as the below code it works but i don't know it is a good solution or not:
ObjectFactory.Initialize(x =>
{
...
x.For<ApplicationUserManager>().Use(() => HttpContext.Current.GetOwinContext().GetUserManager<ApplicationUserManager>());
...
});
please hint me if there is a better solution and if it is ok then what is the best lifetime for it? HttpContextScope, Singleton, ...?

Answer 1

Before you create the StructureMap configuration for this, it helps to know how you would create it manually, i.e., if you actually "new up" everything yourself.
UserManager has a dependency on IUserStore, and its EntityFramework implementation (UserStore) has a dependency on DbContext.
Doing everything manually would look like this:
var dbContext = new IdentityDbContext("Your ConnectionString Name");
var userStore = new UserStore<IdentityUser>(dbContext);
var userManager = new UserManager<IdentityUser>(userStore);
(Replace IdentityUser with your custom user, if you are using one)
You can then configure UserManager like this:
userManager.PasswordValidator = new PasswordValidator
{
RequiredLength = 6
};
The most complicated part about configuring userManager is related to the UserTokenProvider (that uses the data protection api), if you would do it manually it would look like this:
var dataProtectionProvider = new DpapiDataProtectionProvider("Application name");
var dataProtector = dataProtectionProvider.Create("Purpose");
userManager.UserTokenProvider = new DataProtectorTokenProvider<IdentityUser>(dataProtector);
Here's an example of a StructureMap registry (you can extrapolate from this example and adapt it to your own needs):
public DefaultRegistry() {
Scan(
scan => {
scan.TheCallingAssembly();
scan.WithDefaultConventions();
scan.With(new ControllerConvention());
});
For<IUserStore<IdentityUser>>()
.Use<UserStore<IdentityUser>>()
.Ctor<DbContext>()
.Is<IdentityDbContext>(cfg => cfg.SelectConstructor(() => new IdentityDbContext("connection string")).Ctor<string>().Is("IdentitySetupWithStructureMap"));
ForConcreteType<UserManager<IdentityUser>>()
.Configure
.SetProperty(userManager => userManager.PasswordValidator = new PasswordValidator
{
RequiredLength = 6
})
.SetProperty(userManager => userManager.UserValidator = new UserValidator<IdentityUser>(userManager));
}
I wrote a blog post about this, it explains the process that lead to this configuration, there's also a link to an example on github of an MVC project where, using this configuration, you can create, list and delete users.