using System.Net;
using System.Security.Claims;
using System.Threading.Tasks;

namespace Microsoft.AspNetCore.Authentication
{
	/// <summary>
	/// Interface representing the validation of a basic authentication.
	/// </summary>
	public interface IBasicAuthenticationValidator
	{
		/// <summary>
		/// Validates a username and password for Basic Authentication.
		/// </summary>
		/// <param name="username">A username.</param>
		/// <param name="password">A password.</param>
		/// <param name="remoteAddress">The remote client's IP address.</param>
		/// <returns>The validated user principal or <c>null</c>.</returns>
		Task<ClaimsPrincipal> ValidateAsync(string username, string password, IPAddress remoteAddress);
	}
}