Move netmodule handling into handlers namespace

Add handler for teleport pylons, and permission for teleport pylons

TShockAPI/Handlers/NetModules/NetModulePacketHandler.cs

@@ -0,0 +1,75 @@
+using System;
+using Terraria;
+using static TShockAPI.GetDataHandlers;
+
+namespace TShockAPI.Handlers.NetModules
+{
+	/// <summary>
+	/// Handles packet 82 - Load Net Module packets
+	/// </summary>
+	public class NetModulePacketHandler : IPacketHandler<LoadNetModuleEventArgs>
+	{
+		/// <summary>
+		/// Invoked when a load net module packet is received. This method picks a <see cref="INetModuleHandler"/> based on the
+		/// net module type being loaded, then forwards the data to the chosen handler to process
+		/// </summary>
+		/// <param name="sender"></param>
+		/// <param name="args"></param>
+		public void OnReceive(object sender, LoadNetModuleEventArgs args)
+		{
+			INetModuleHandler handler;
+
+			switch (args.ModuleType)
+			{
+				case NetModulesTypes.CreativePowers:
+					{
+						handler = new CreativePowerHandler();
+						break;
+					}
+
+				case NetModulesTypes.CreativeUnlocksPlayerReport:
+					{
+						if (!Main.GameModeInfo.IsJourneyMode)
+						{
+							TShock.Log.ConsoleDebug(
+								"NetModuleHandler received attempt to unlock sacrifice while not in journey mode from",
+								args.Player.Name
+							);
+
+							args.Handled = true;
+							return;
+						}
+
+						handler = new CreativeUnlocksHandler();
+						break;
+					}
+				case NetModulesTypes.TeleportPylon:
+					{
+						handler = new PylonHandler();
+						break;
+					}
+				default:
+					{
+						// As of 1.4.x.x, this is now used for more things:
+						//	NetCreativePowersModule
+						//	NetCreativePowerPermissionsModule
+						//	NetLiquidModule
+						//	NetParticlesModule
+						//	NetPingModule
+						//	NetTeleportPylonModule
+						//	NetTextModule
+						// I (particles) have disabled the original return here, which means that we need to
+						// handle this more. In the interm, this unbreaks parts of vanilla. Originally
+						// we just blocked this because it was a liquid exploit.
+						args.Handled = false;
+						return;
+					}
+			}
+
+			handler.Deserialize(args.Data);
+			handler.HandlePacket(args.Player, out bool rejectPacket);
+
+			args.Handled = rejectPacket;
+		}
+	}
+}