164 lines
6.3 KiB
C#
164 lines
6.3 KiB
C#
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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.world;
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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.UserServer;
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using OpenSim.Assets;
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using OpenSim.CAPS;
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using OpenSim.Framework.Console;
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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 : OpenSimNetworkHandler
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{
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private Dictionary<EndPoint, uint> clientCircuits = new Dictionary<EndPoint, uint>();
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public Socket Server;
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private IPEndPoint ServerIncoming;
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private byte[] RecvBuffer = new byte[4096];
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private byte[] ZeroBuffer = new byte[8192];
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private IPEndPoint ipeSender;
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private EndPoint epSender;
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private AsyncCallback ReceivedData;
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private PacketServer _packetServer;
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private int listenPort;
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private Grid m_gridServers;
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private World m_localWorld;
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private AssetCache m_assetCache;
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private InventoryCache m_inventoryCache;
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private RegionInfo m_regionData;
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private bool m_sandbox = false;
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private bool user_accounts = false;
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private ConsoleBase m_console;
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public UDPServer(int port, Grid gridServers, World localWorld, AssetCache assetCache, InventoryCache inventoryCache, RegionInfo _regionData, bool sandbox, bool accounts, ConsoleBase console)
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{
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listenPort = port;
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this.m_gridServers = gridServers;
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this.m_localWorld = localWorld;
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this.m_assetCache = assetCache;
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this.m_inventoryCache = inventoryCache;
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this.m_regionData = _regionData;
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this.m_sandbox = sandbox;
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this.user_accounts = accounts;
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this.m_console = console;
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PacketServer packetServer = new PacketServer(this);
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this._packetServer.LocalWorld = m_localWorld;
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this._packetServer.RegisterClientPacketHandlers();
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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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Console.Error.WriteLine("Main.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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bool isChildAgent = false;
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SimClient newuser = new SimClient(epSender, useCircuit, m_localWorld, _packetServer.ClientThreads, m_assetCache, m_gridServers.GridServer, this, m_inventoryCache, m_sandbox, isChildAgent, this.m_regionData);
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if ((this.m_gridServers.UserServer != null) && (user_accounts))
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{
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newuser.UserServer = this.m_gridServers.UserServer;
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}
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//OpenSimRoot.Instance.ClientThreads.Add(epSender, newuser);
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this._packetServer.ClientThreads.Add(useCircuit.CircuitCode.Code, newuser);
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}
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private void ServerListener()
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{
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m_console.WriteLine("Main.cs:MainServerListener() - 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_console.WriteLine("Main.cs:MainServerListener() - 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_console.WriteLine("Main.cs:MainServerListener() - Listening...");
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}
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public 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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