ASP.NET MVC MembershipProvider with repository and ninject

Question

How do I communicate with the UserService through an overidden MembershipProvider class? I have no idea how to pass the connection string to the user repository inside the service.

This is how my app is structured:

Repository (constructor in the implementation takes a connection string)

public interface IUserRepository
{
    IQueryable<User> GetUsers();
    IQueryable<UserRole> GetUserRoles();
    void InsertUser(User user);
}

Service (Constructor takes a user repository)

public interface IUserService
{
    User GetUser(int userId);
    User GetUser(string email);
}

UserController (An example of my controller)

public class UsersController : Controller
{
    private IUserService userService;
    public UsersController(IUserService userServ)
    {
        userService = userServ;
    }
}

NinjectConfigurationModule

public class NinjectConfigurationModule : NinjectModule
{

    public override void Load()
    {
        Bind<IUserService>().To<UserService>();
        Bind<IUserRepository>().To<UserRepository>()
            .WithConstructorArgument("connectionString", ConfigurationManager.ConnectionStrings["ApplicationServices"].ConnectionString
            );
    }
}

NinjectControllerFactory

public class NinjectControllerFactory : DefaultControllerFactory
{
    private IKernel kernel = new StandardKernel(new NinjectConfigurationModule());

    protected override IController GetControllerInstance(System.Web.Routing.RequestContext requestContext, Type controllerType)
    {
        // We don't want to pass null to ninject as we'll get a strange error.
        return controllerType == null ? null
                                      : (IController)kernel.Get(controllerType);
    }
}

MembershipProvider (This is where my problem is)

public class SimpleMembershipProvider : MembershipProvider
{
     //How do I set up User Service here so that ninject can put my connection string here.
     public override bool ValidateUser(string username, string password)
     {
           //Code to use user service.
     }
}

Answer 1

You can override the MembershipProvider.Initialize function and also need some settings in web.config

public override void Initialize(string name, NameValueCollection config) {
    // Validate arguments
    if (config == null) throw new ArgumentNullException("config");

    // Initialize base class
    base.Initialize(name, config);

    // Initialize current class
    this.configuration = config;
    System.Configuration.ConnectionStringSettings ConnectionStringSettings = System.Configuration.ConfigurationManager.ConnectionStrings[config["connectionStringName"]];
    if (ConnectionStringSettings == null || ConnectionStringSettings.ConnectionString.Trim() == "") throw new ProviderException("Connection string cannot be blank.");
    // then you can create a new user service using the connection string: SimpleAuthDb
}

web.config

<membership defaultProvider="MyMembershipProvider">
    <providers>
        <clear/>
        <add name="MyMembershipProvider"
             type="Web.SimpleSqlMembershipProvider"
             connectionStringName="SimpleAuthDb" />
    </providers>
</membership>

I also created a custom membership provider like you. in user controller's login action will call the validateuser function like this:

Membership.ValidateUser(userName, password);

but ultimately I give up the membership provider and add a new function ValidateUser in IUserService, and then the code like this:

userService.ValidateUser(userName, password);

I think this is more simple.

Answer 2

check out the answer to this question

Answer 3

Liu Peng, Can you explain a little bit of your custom method to validate user in userservice? I am writing an app and dont want to use the Membership abstract class. I want to know how I can Authenticate and Authorize(Role based) in MVC without Membership provider. Can we still use/decorate with [Authorize] attributes? If so can u give some insight on how to do? I am using Ninject as DI.

thank you Ranjit