Added new middleware to protect paths by authorization (also static files)

AMWD.Common.AspNetCore/Security/BasicAuthentication/IBasicAuthenticationValidator.cs

@@ -0,0 +1,28 @@
+using System.Net;
+using System.Security.Claims;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace AMWD.Common.AspNetCore.Security.BasicAuthentication
+{
+	/// <summary>
+	/// Interface representing the validation of a basic authentication.
+	/// </summary>
+	public interface IBasicAuthenticationValidator
+	{
+		/// <summary>
+		/// Gets the realm to use when requesting authentication.
+		/// </summary>
+		string Realm { get; }
+
+		/// <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>
+		/// <param name="cancellationToken">A cancellation token.</param>
+		/// <returns>The validated user principal or <c>null</c>.</returns>
+		Task<ClaimsPrincipal> ValidateAsync(string username, string password, IPAddress remoteAddress, CancellationToken cancellationToken = default);
+	}
+}