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Some work on restructuring the namespaces / project names. Note this doesn't compile yet as not all the code has been changed to use the new namespaces. Am committing it now for feedback on the namespaces.
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MW
208
OpenSim/Region/ClientStack/UDPServer.cs
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208
OpenSim/Region/ClientStack/UDPServer.cs
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/*
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* Copyright (c) Contributors, http://www.openmetaverse.org/
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* See CONTRIBUTORS.TXT for a full list of copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the OpenSim Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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using System;
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using System.Text;
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using System.IO;
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using System.Threading;
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using System.Net;
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using System.Net.Sockets;
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using System.Timers;
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using System.Reflection;
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using System.Collections;
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using System.Collections.Generic;
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using libsecondlife;
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using libsecondlife.Packets;
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using OpenSim.Terrain;
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using OpenSim.Framework.Interfaces;
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using OpenSim.Framework.Types;
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using OpenSim.Assets;
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using OpenSim.Caches;
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using OpenSim.Framework.Console;
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using OpenSim.Framework;
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using Nwc.XmlRpc;
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using OpenSim.Servers;
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using OpenSim.GenericConfig;
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namespace OpenSim
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{
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public class UDPServer : ClientStackNetworkHandler
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{
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protected Dictionary<EndPoint, uint> clientCircuits = new Dictionary<EndPoint, uint>();
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public Socket Server;
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protected IPEndPoint ServerIncoming;
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protected byte[] RecvBuffer = new byte[4096];
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protected byte[] ZeroBuffer = new byte[8192];
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protected IPEndPoint ipeSender;
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protected EndPoint epSender;
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protected AsyncCallback ReceivedData;
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protected PacketServer _packetServer;
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protected int listenPort;
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protected IWorld m_localWorld;
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protected AssetCache m_assetCache;
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protected InventoryCache m_inventoryCache;
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protected LogBase m_log;
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protected AuthenticateSessionsBase m_authenticateSessionsClass;
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public PacketServer PacketServer
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{
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get
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{
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return _packetServer;
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}
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set
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{
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_packetServer = value;
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}
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}
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public IWorld LocalWorld
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{
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set
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{
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this.m_localWorld = value;
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this._packetServer.LocalWorld = this.m_localWorld;
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}
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}
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public UDPServer()
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{
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}
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public UDPServer(int port, AssetCache assetCache, InventoryCache inventoryCache, LogBase console, AuthenticateSessionsBase authenticateClass)
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{
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listenPort = port;
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this.m_assetCache = assetCache;
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this.m_inventoryCache = inventoryCache;
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this.m_log = console;
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this.m_authenticateSessionsClass = authenticateClass;
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this.CreatePacketServer();
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}
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protected virtual void CreatePacketServer()
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{
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PacketServer packetServer = new PacketServer(this, (uint) listenPort);
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}
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protected virtual void OnReceivedData(IAsyncResult result)
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{
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ipeSender = new IPEndPoint(IPAddress.Any, 0);
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epSender = (EndPoint)ipeSender;
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Packet packet = null;
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int numBytes = Server.EndReceiveFrom(result, ref epSender);
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int packetEnd = numBytes - 1;
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packet = Packet.BuildPacket(RecvBuffer, ref packetEnd, ZeroBuffer);
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// do we already have a circuit for this endpoint
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if (this.clientCircuits.ContainsKey(epSender))
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{
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//if so then send packet to the packetserver
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this._packetServer.ClientInPacket(this.clientCircuits[epSender], packet);
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}
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else if (packet.Type == PacketType.UseCircuitCode)
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{
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// new client
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this.AddNewClient(packet);
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}
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else
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{ // invalid client
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m_log.Warn("UDPServer.cs:OnReceivedData() - WARNING: Got a packet from an invalid client - " + epSender.ToString());
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}
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Server.BeginReceiveFrom(RecvBuffer, 0, RecvBuffer.Length, SocketFlags.None, ref epSender, ReceivedData, null);
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}
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protected virtual void AddNewClient(Packet packet)
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{
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UseCircuitCodePacket useCircuit = (UseCircuitCodePacket)packet;
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this.clientCircuits.Add(epSender, useCircuit.CircuitCode.Code);
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this.PacketServer.AddNewClient(epSender, useCircuit, m_assetCache, m_inventoryCache, m_authenticateSessionsClass);
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}
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public void ServerListener()
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{
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m_log.Status("UDPServer.cs:ServerListener() - Opening UDP socket on " + listenPort);
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ServerIncoming = new IPEndPoint(IPAddress.Any, listenPort);
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Server = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
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Server.Bind(ServerIncoming);
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m_log.Verbose("UDPServer.cs:ServerListener() - UDP socket bound, getting ready to listen");
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ipeSender = new IPEndPoint(IPAddress.Any, 0);
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epSender = (EndPoint)ipeSender;
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ReceivedData = new AsyncCallback(this.OnReceivedData);
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Server.BeginReceiveFrom(RecvBuffer, 0, RecvBuffer.Length, SocketFlags.None, ref epSender, ReceivedData, null);
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m_log.Verbose("UDPServer.cs:ServerListener() - Listening...");
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}
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public virtual void RegisterPacketServer(PacketServer server)
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{
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this._packetServer = server;
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}
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public virtual void SendPacketTo(byte[] buffer, int size, SocketFlags flags, uint circuitcode)//EndPoint packetSender)
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{
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// find the endpoint for this circuit
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EndPoint sendto = null;
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foreach (KeyValuePair<EndPoint, uint> p in this.clientCircuits)
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{
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if (p.Value == circuitcode)
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{
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sendto = p.Key;
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break;
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}
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}
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if (sendto != null)
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{
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//we found the endpoint so send the packet to it
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this.Server.SendTo(buffer, size, flags, sendto);
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}
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}
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public virtual void RemoveClientCircuit(uint circuitcode)
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{
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foreach (KeyValuePair<EndPoint, uint> p in this.clientCircuits)
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{
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if (p.Value == circuitcode)
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{
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this.clientCircuits.Remove(p.Key);
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break;
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}
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}
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}
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}
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}
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