public class PrincipalProvider : IPrincipalProvider
{

    // Readonly fields
    private readonly HttpContext _current;

    /// <summary>
    /// Default constructor
    /// </summary>
    public PrincipalProvider()
    {
        _current = HttpContext.Current;
    }

    /// <summary>
    /// Gets the current user
    /// </summary>
    public IPrincipal User => _current?.User;
}

builder.RegisterType<PrincipalProvider>().As<IPrincipalProvider>().InstancePerRequest();

public OrdersController(IOrderProvider provider)
{
    _provider = provider;
}

public UsersController(IUserProvider provider, IAdvancedEncryptionStandardProvider encyptionProvider, IPhotoManager photoManager)
{
    _userProvider = provider;
    _encryptionProvider = encyptionProvider;
    _photoManager = photoManager;
}

public TroposSessionRequest(CormarConfig config, IAdvancedEncryptionStandardProvider encryptionProvider, Lazy<IPrincipalProvider> principalProvider)
{
    _config = config;
    _encryptionProvider = encryptionProvider;
    _principalProvider = principalProvider;
}