From 3d93d390485075345442b9b5ea35eed88a9cab49 Mon Sep 17 00:00:00 2001 From: MW Date: Wed, 16 May 2007 12:44:58 +0000 Subject: started to refactor startup code and to move udp server code out to its own class (currently not being used though) so that a single instance can handle multiple regions (each will need to be listening on a separate udp port) --- OpenSim.RegionServer/UDPServer.cs | 164 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 164 insertions(+) create mode 100644 OpenSim.RegionServer/UDPServer.cs (limited to 'OpenSim.RegionServer/UDPServer.cs') diff --git a/OpenSim.RegionServer/UDPServer.cs b/OpenSim.RegionServer/UDPServer.cs new file mode 100644 index 0000000..e70ae78 --- /dev/null +++ b/OpenSim.RegionServer/UDPServer.cs @@ -0,0 +1,164 @@ +using System; +using System.Text; +using System.IO; +using System.Threading; +using System.Net; +using System.Net.Sockets; +using System.Timers; +using System.Reflection; +using System.Collections; +using System.Collections.Generic; +using libsecondlife; +using libsecondlife.Packets; +using OpenSim.world; +using OpenSim.Terrain; +using OpenSim.Framework.Interfaces; +using OpenSim.Framework.Types; +using OpenSim.UserServer; +using OpenSim.Assets; +using OpenSim.CAPS; +using OpenSim.Framework.Console; +using Nwc.XmlRpc; +using OpenSim.Servers; +using OpenSim.GenericConfig; + +namespace OpenSim +{ + public class UDPServer : OpenSimNetworkHandler + { + private Dictionary clientCircuits = new Dictionary(); + public Socket Server; + private IPEndPoint ServerIncoming; + private byte[] RecvBuffer = new byte[4096]; + private byte[] ZeroBuffer = new byte[8192]; + private IPEndPoint ipeSender; + private EndPoint epSender; + private AsyncCallback ReceivedData; + private PacketServer _packetServer; + + private int listenPort; + private Grid m_gridServers; + private World m_localWorld; + private AssetCache m_assetCache; + private InventoryCache m_inventoryCache; + private RegionInfo m_regionData; + private bool m_sandbox = false; + private bool user_accounts = false; + private ConsoleBase m_console; + + public UDPServer(int port, Grid gridServers, World localWorld, AssetCache assetCache, InventoryCache inventoryCache, RegionInfo _regionData, bool sandbox, bool accounts, ConsoleBase console) + { + listenPort = port; + this.m_gridServers = gridServers; + this.m_localWorld = localWorld; + this.m_assetCache = assetCache; + this.m_inventoryCache = inventoryCache; + this.m_regionData = _regionData; + this.m_sandbox = sandbox; + this.user_accounts = accounts; + this.m_console = console; + PacketServer packetServer = new PacketServer(this); + this._packetServer.LocalWorld = m_localWorld; + this._packetServer.RegisterClientPacketHandlers(); + } + + protected virtual void OnReceivedData(IAsyncResult result) + { + ipeSender = new IPEndPoint(IPAddress.Any, 0); + epSender = (EndPoint)ipeSender; + Packet packet = null; + int numBytes = Server.EndReceiveFrom(result, ref epSender); + int packetEnd = numBytes - 1; + + packet = Packet.BuildPacket(RecvBuffer, ref packetEnd, ZeroBuffer); + + // do we already have a circuit for this endpoint + if (this.clientCircuits.ContainsKey(epSender)) + { + //if so then send packet to the packetserver + this._packetServer.ClientInPacket(this.clientCircuits[epSender], packet); + } + else if (packet.Type == PacketType.UseCircuitCode) + { + // new client + this.AddNewClient(packet); + } + else + { // invalid client + Console.Error.WriteLine("Main.cs:OnReceivedData() - WARNING: Got a packet from an invalid client - " + epSender.ToString()); + } + + Server.BeginReceiveFrom(RecvBuffer, 0, RecvBuffer.Length, SocketFlags.None, ref epSender, ReceivedData, null); + } + + protected virtual void AddNewClient(Packet packet) + { + UseCircuitCodePacket useCircuit = (UseCircuitCodePacket)packet; + this.clientCircuits.Add(epSender, useCircuit.CircuitCode.Code); + bool isChildAgent = false; + + SimClient newuser = new SimClient(epSender, useCircuit, m_localWorld, _packetServer.ClientThreads, m_assetCache, m_gridServers.GridServer, this, m_inventoryCache, m_sandbox, isChildAgent, this.m_regionData); + if ((this.m_gridServers.UserServer != null) && (user_accounts)) + { + newuser.UserServer = this.m_gridServers.UserServer; + } + //OpenSimRoot.Instance.ClientThreads.Add(epSender, newuser); + this._packetServer.ClientThreads.Add(useCircuit.CircuitCode.Code, newuser); + } + + private void ServerListener() + { + m_console.WriteLine("Main.cs:MainServerListener() - Opening UDP socket on " + listenPort); + + ServerIncoming = new IPEndPoint(IPAddress.Any, listenPort); + Server = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp); + Server.Bind(ServerIncoming); + + m_console.WriteLine("Main.cs:MainServerListener() - UDP socket bound, getting ready to listen"); + + ipeSender = new IPEndPoint(IPAddress.Any, 0); + epSender = (EndPoint)ipeSender; + ReceivedData = new AsyncCallback(this.OnReceivedData); + Server.BeginReceiveFrom(RecvBuffer, 0, RecvBuffer.Length, SocketFlags.None, ref epSender, ReceivedData, null); + + m_console.WriteLine("Main.cs:MainServerListener() - Listening..."); + + } + + public void RegisterPacketServer(PacketServer server) + { + this._packetServer = server; + } + + public virtual void SendPacketTo(byte[] buffer, int size, SocketFlags flags, uint circuitcode)//EndPoint packetSender) + { + // find the endpoint for this circuit + EndPoint sendto = null; + foreach (KeyValuePair p in this.clientCircuits) + { + if (p.Value == circuitcode) + { + sendto = p.Key; + break; + } + } + if (sendto != null) + { + //we found the endpoint so send the packet to it + this.Server.SendTo(buffer, size, flags, sendto); + } + } + + public virtual void RemoveClientCircuit(uint circuitcode) + { + foreach (KeyValuePair p in this.clientCircuits) + { + if (p.Value == circuitcode) + { + this.clientCircuits.Remove(p.Key); + break; + } + } + } + } +} \ No newline at end of file -- cgit v1.1