Add password user authenticator

ForgeUnity/Assets/BeardedManStudios/Scripts/Networking/Forge/Networking/PasswordUserAuthenticator.cs

@@ -0,0 +1,66 @@
+using System;
+using BeardedManStudios;
+using BeardedManStudios.Forge.Networking;
+
+namespace BeardedManStudios.Forge.Networking
+{
+	/// <summary>
+	/// Authenticates the user to the server through a password.
+	/// </summary>
+	internal sealed class PasswordUserAuthenticator : IUserAuthenticator
+	{
+		/// <summary>
+		/// The password to require.
+		/// </summary>
+		private readonly string password;
+
+		/// <summary>
+		/// Constructor.
+		/// </summary>
+		/// <param name="password">The password to require when connecting to the server.</param>
+		public PasswordUserAuthenticator(string password)
+		{
+			this.password = password;
+		}
+
+		/// <inheritdoc/>
+		public void IssueChallenge(
+			NetWorker networker,
+			NetworkingPlayer player,
+			Action<NetworkingPlayer, BMSByte> issueChallengeAction,
+			Action<NetworkingPlayer> skipAuthAction
+		)
+		{
+			issueChallengeAction(player, new BMSByte());
+		}
+
+		/// <inheritdoc/>
+		public void AcceptChallenge(
+			NetWorker networker,
+			BMSByte challenge,
+			Action<BMSByte> authServerAction,
+			Action rejectServerAction
+		)
+		{
+			authServerAction(ObjectMapper.BMSByte(password));
+		}
+
+		/// <inheritdoc/>
+		public void VerifyResponse(
+			NetWorker networker,
+			NetworkingPlayer player,
+			BMSByte response,
+			Action<NetworkingPlayer> authUserAction,
+			Action<NetworkingPlayer> rejectUserAction
+		)
+		{
+			string sentPassword = response.GetBasicType<string>();
+
+			if (sentPassword == password)
+				authUserAction(player);
+
+			else
+				rejectUserAction(player);
+		}
+	}
+}