664 lines
26 KiB
C#
664 lines
26 KiB
C#
/*
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Copyright (c) OpenSim project, http://osgrid.org/
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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 <organization> 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 <copyright holder> ``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 <copyright holder> 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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using System;
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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 Nwc.XmlRpc;
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using System.Net;
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using System.Net.Sockets;
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using System.IO;
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using System.Threading;
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using System.Timers;
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using OpenSim.Framework.Interfaces;
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using OpenSim.Framework.Types;
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using OpenSim.Framework.Inventory;
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using OpenSim.Framework.Utilities;
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using OpenSim.world;
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using OpenSim.Assets;
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namespace OpenSim
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{
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public delegate bool PacketMethod(SimClient simClient, Packet packet);
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/// <summary>
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/// Handles new client connections
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/// Constructor takes a single Packet and authenticates everything
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/// </summary>
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public partial class SimClient
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{
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public LLUUID AgentID;
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public LLUUID SessionID;
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public LLUUID SecureSessionID = LLUUID.Zero;
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public bool m_child;
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public uint CircuitCode;
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public world.Avatar ClientAvatar;
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private UseCircuitCodePacket cirpack;
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public Thread ClientThread;
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public EndPoint userEP;
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public LLVector3 startpos;
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private BlockingQueue<QueItem> PacketQueue;
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private Dictionary<uint, uint> PendingAcks = new Dictionary<uint, uint>();
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private Dictionary<uint, Packet> NeedAck = new Dictionary<uint, Packet>();
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//private Dictionary<LLUUID, AssetBase> UploadedAssets = new Dictionary<LLUUID, AssetBase>();
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private System.Timers.Timer AckTimer;
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private uint Sequence = 0;
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private object SequenceLock = new object();
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private const int MAX_APPENDED_ACKS = 10;
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private const int RESEND_TIMEOUT = 4000;
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private const int MAX_SEQUENCE = 0xFFFFFF;
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private AgentAssetUpload UploadAssets;
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private LLUUID newAssetFolder = LLUUID.Zero;
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private bool debug = false;
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private World m_world;
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private Dictionary<uint, SimClient> m_clientThreads;
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private AssetCache m_assetCache;
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private IGridServer m_gridServer;
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private IUserServer m_userServer = null;
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private OpenSimNetworkHandler m_networkServer;
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private InventoryCache m_inventoryCache;
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public bool m_sandboxMode;
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private int cachedtextureserial = 0;
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private RegionInfo m_regionData;
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protected AuthenticateSessionsBase m_authenticateSessionsHandler;
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protected static Dictionary<PacketType, PacketMethod> PacketHandlers = new Dictionary<PacketType, PacketMethod>(); //Global/static handlers for all clients
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protected Dictionary<PacketType, PacketMethod> m_packetHandlers = new Dictionary<PacketType, PacketMethod>(); //local handlers for this instance
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public IUserServer UserServer
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{
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set
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{
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this.m_userServer = value;
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}
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}
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public SimClient(EndPoint remoteEP, UseCircuitCodePacket initialcirpack, World world, Dictionary<uint, SimClient> clientThreads, AssetCache assetCache, IGridServer gridServer, OpenSimNetworkHandler application, InventoryCache inventoryCache, bool sandboxMode, bool child, RegionInfo regionDat, AuthenticateSessionsBase authenSessions)
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{
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m_world = world;
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m_clientThreads = clientThreads;
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m_assetCache = assetCache;
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m_gridServer = gridServer;
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m_networkServer = application;
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m_inventoryCache = inventoryCache;
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m_sandboxMode = sandboxMode;
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m_child = child;
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m_regionData = regionDat;
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m_authenticateSessionsHandler = authenSessions;
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OpenSim.Framework.Console.MainConsole.Instance.WriteLine(OpenSim.Framework.Console.LogPriority.LOW, "OpenSimClient.cs - Started up new client thread to handle incoming request");
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cirpack = initialcirpack;
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userEP = remoteEP;
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if (m_gridServer.GetName() == "Remote")
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{
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this.m_child = m_authenticateSessionsHandler.GetAgentChildStatus(initialcirpack.CircuitCode.Code);
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this.startpos = m_authenticateSessionsHandler.GetPosition(initialcirpack.CircuitCode.Code);
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//Console.WriteLine("start pos is " + this.startpos.X + " , " + this.startpos.Y + " , " + this.startpos.Z);
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}
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else
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{
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this.startpos = new LLVector3(128, 128, m_world.Terrain[(int)128, (int)128] + 15.0f); // new LLVector3(128.0f, 128.0f, 60f);
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}
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PacketQueue = new BlockingQueue<QueItem>();
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this.UploadAssets = new AgentAssetUpload(this, m_assetCache, m_inventoryCache);
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AckTimer = new System.Timers.Timer(500);
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AckTimer.Elapsed += new ElapsedEventHandler(AckTimer_Elapsed);
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AckTimer.Start();
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this.RegisterLocalPacketHandlers();
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ClientThread = new Thread(new ThreadStart(AuthUser));
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ClientThread.IsBackground = true;
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ClientThread.Start();
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}
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# region Client Methods
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public void UpgradeClient()
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{
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Console.WriteLine("updateclient being called");
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OpenSim.Framework.Console.MainConsole.Instance.WriteLine(OpenSim.Framework.Console.LogPriority.LOW, "SimClient.cs:UpgradeClient() - upgrading child to full agent");
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this.m_child = false;
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this.m_world.RemoveViewerAgent(this);
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if (!this.m_sandboxMode)
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{
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this.startpos = m_authenticateSessionsHandler.GetPosition(CircuitCode);
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m_authenticateSessionsHandler.UpdateAgentChildStatus(CircuitCode, false);
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//Console.WriteLine("upgrade start pos is " + this.startpos.X + " , " + this.startpos.Y + " , " + this.startpos.Z);
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}
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this.InitNewClient();
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}
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public void DowngradeClient()
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{
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OpenSim.Framework.Console.MainConsole.Instance.WriteLine(OpenSim.Framework.Console.LogPriority.LOW, "SimClient.cs:UpgradeClient() - changing full agent to child");
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this.m_child = true;
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this.m_world.RemoveViewerAgent(this);
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this.m_world.AddViewerAgent(this);
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}
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public void KillClient()
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{
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KillObjectPacket kill = new KillObjectPacket();
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kill.ObjectData = new KillObjectPacket.ObjectDataBlock[1];
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kill.ObjectData[0] = new KillObjectPacket.ObjectDataBlock();
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kill.ObjectData[0].ID = this.ClientAvatar.localid;
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foreach (SimClient client in m_clientThreads.Values)
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{
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client.OutPacket(kill);
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}
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if (this.m_userServer != null)
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{
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this.m_inventoryCache.ClientLeaving(this.AgentID, this.m_userServer);
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}
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else
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{
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this.m_inventoryCache.ClientLeaving(this.AgentID, null);
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}
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m_world.RemoveViewerAgent(this);
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m_clientThreads.Remove(this.CircuitCode);
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m_networkServer.RemoveClientCircuit(this.CircuitCode);
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this.ClientThread.Abort();
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}
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#endregion
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# region Packet Handling
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public static bool AddPacketHandler(PacketType packetType, PacketMethod handler)
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{
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bool result = false;
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lock (PacketHandlers)
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{
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if (!PacketHandlers.ContainsKey(packetType))
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{
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PacketHandlers.Add(packetType, handler);
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result = true;
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}
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}
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return result;
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}
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public bool AddLocalPacketHandler(PacketType packetType, PacketMethod handler)
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{
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bool result = false;
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lock (m_packetHandlers)
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{
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if (!m_packetHandlers.ContainsKey(packetType))
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{
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m_packetHandlers.Add(packetType, handler);
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result = true;
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}
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}
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return result;
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}
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protected virtual bool ProcessPacketMethod(Packet packet)
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{
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bool result = false;
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bool found = false;
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PacketMethod method;
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if (m_packetHandlers.TryGetValue(packet.Type, out method))
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{
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//there is a local handler for this packet type
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result = method(this, packet);
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}
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else
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{
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//there is not a local handler so see if there is a Global handler
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lock (PacketHandlers)
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{
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found = PacketHandlers.TryGetValue(packet.Type, out method);
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}
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if (found)
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{
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result = method(this, packet);
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}
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}
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return result;
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}
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# endregion
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# region Low Level Packet Methods
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private void ack_pack(Packet Pack)
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{
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if (Pack.Header.Reliable)
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{
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libsecondlife.Packets.PacketAckPacket ack_it = new PacketAckPacket();
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ack_it.Packets = new PacketAckPacket.PacketsBlock[1];
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ack_it.Packets[0] = new PacketAckPacket.PacketsBlock();
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ack_it.Packets[0].ID = Pack.Header.Sequence;
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ack_it.Header.Reliable = false;
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OutPacket(ack_it);
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}
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/*
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if (Pack.Header.Reliable)
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{
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lock (PendingAcks)
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{
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uint sequence = (uint)Pack.Header.Sequence;
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if (!PendingAcks.ContainsKey(sequence)) { PendingAcks[sequence] = sequence; }
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}
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}*/
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}
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private void ResendUnacked()
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{
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int now = Environment.TickCount;
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lock (NeedAck)
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{
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foreach (Packet packet in NeedAck.Values)
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{
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if ((now - packet.TickCount > RESEND_TIMEOUT) && (!packet.Header.Resent))
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{
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OpenSim.Framework.Console.MainConsole.Instance.WriteLine(OpenSim.Framework.Console.LogPriority.VERBOSE, "Resending " + packet.Type.ToString() + " packet, " +
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(now - packet.TickCount) + "ms have passed");
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packet.Header.Resent = true;
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OutPacket(packet);
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}
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}
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}
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}
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private void SendAcks()
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{
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lock (PendingAcks)
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{
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if (PendingAcks.Count > 0)
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{
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if (PendingAcks.Count > 250)
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{
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// FIXME: Handle the odd case where we have too many pending ACKs queued up
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OpenSim.Framework.Console.MainConsole.Instance.WriteLine(OpenSim.Framework.Console.LogPriority.VERBOSE, "Too many ACKs queued up!");
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return;
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}
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//OpenSim.Framework.Console.MainConsole.Instance.WriteLine("Sending PacketAck");
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int i = 0;
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PacketAckPacket acks = new PacketAckPacket();
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acks.Packets = new PacketAckPacket.PacketsBlock[PendingAcks.Count];
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foreach (uint ack in PendingAcks.Values)
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{
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acks.Packets[i] = new PacketAckPacket.PacketsBlock();
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acks.Packets[i].ID = ack;
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i++;
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}
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acks.Header.Reliable = false;
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OutPacket(acks);
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PendingAcks.Clear();
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}
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}
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}
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private void AckTimer_Elapsed(object sender, ElapsedEventArgs ea)
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{
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SendAcks();
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ResendUnacked();
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}
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# endregion
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#region Packet Queue Processing
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protected virtual void ProcessOutPacket(Packet Pack)
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{
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// Keep track of when this packet was sent out
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Pack.TickCount = Environment.TickCount;
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if (!Pack.Header.Resent)
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{
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// Set the sequence number
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lock (SequenceLock)
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{
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if (Sequence >= MAX_SEQUENCE)
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Sequence = 1;
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else
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Sequence++;
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Pack.Header.Sequence = Sequence;
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}
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if (Pack.Header.Reliable) //DIRTY HACK
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{
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lock (NeedAck)
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{
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if (!NeedAck.ContainsKey(Pack.Header.Sequence))
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{
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try
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{
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NeedAck.Add(Pack.Header.Sequence, Pack);
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}
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catch (Exception e) // HACKY
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{
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e.ToString();
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// Ignore
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// Seems to throw a exception here occasionally
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// of 'duplicate key' despite being locked.
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// !?!?!?
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}
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}
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else
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{
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// Client.Log("Attempted to add a duplicate sequence number (" +
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// packet.Header.Sequence + ") to the NeedAck dictionary for packet type " +
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// packet.Type.ToString(), Helpers.LogLevel.Warning);
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}
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}
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// Don't append ACKs to resent packets, in case that's what was causing the
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// delivery to fail
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if (!Pack.Header.Resent)
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{
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// Append any ACKs that need to be sent out to this packet
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lock (PendingAcks)
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{
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if (PendingAcks.Count > 0 && PendingAcks.Count < MAX_APPENDED_ACKS &&
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Pack.Type != PacketType.PacketAck &&
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Pack.Type != PacketType.LogoutRequest)
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{
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Pack.Header.AckList = new uint[PendingAcks.Count];
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int i = 0;
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foreach (uint ack in PendingAcks.Values)
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{
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Pack.Header.AckList[i] = ack;
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i++;
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}
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PendingAcks.Clear();
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Pack.Header.AppendedAcks = true;
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}
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}
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}
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}
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}
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byte[] ZeroOutBuffer = new byte[4096];
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byte[] sendbuffer;
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sendbuffer = Pack.ToBytes();
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try
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{
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if (Pack.Header.Zerocoded)
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{
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int packetsize = Helpers.ZeroEncode(sendbuffer, sendbuffer.Length, ZeroOutBuffer);
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m_networkServer.SendPacketTo(ZeroOutBuffer, packetsize, SocketFlags.None, CircuitCode);//userEP);
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}
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else
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{
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m_networkServer.SendPacketTo(sendbuffer, sendbuffer.Length, SocketFlags.None, CircuitCode); //userEP);
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}
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}
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catch (Exception)
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{
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OpenSim.Framework.Console.MainConsole.Instance.WriteLine(OpenSim.Framework.Console.LogPriority.MEDIUM, "OpenSimClient.cs:ProcessOutPacket() - WARNING: Socket exception occurred on connection " + userEP.ToString() + " - killing thread");
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ClientThread.Abort();
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}
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}
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public virtual void InPacket(Packet NewPack)
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{
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// Handle appended ACKs
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if (NewPack.Header.AppendedAcks)
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{
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lock (NeedAck)
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{
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foreach (uint ack in NewPack.Header.AckList)
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{
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NeedAck.Remove(ack);
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}
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}
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}
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// Handle PacketAck packets
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if (NewPack.Type == PacketType.PacketAck)
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{
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PacketAckPacket ackPacket = (PacketAckPacket)NewPack;
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lock (NeedAck)
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{
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foreach (PacketAckPacket.PacketsBlock block in ackPacket.Packets)
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{
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NeedAck.Remove(block.ID);
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}
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}
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}
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else if ((NewPack.Type == PacketType.StartPingCheck))
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{
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//reply to pingcheck
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libsecondlife.Packets.StartPingCheckPacket startPing = (libsecondlife.Packets.StartPingCheckPacket)NewPack;
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libsecondlife.Packets.CompletePingCheckPacket endPing = new CompletePingCheckPacket();
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endPing.PingID.PingID = startPing.PingID.PingID;
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OutPacket(endPing);
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}
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else
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{
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QueItem item = new QueItem();
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item.Packet = NewPack;
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item.Incoming = true;
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this.PacketQueue.Enqueue(item);
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}
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}
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public virtual void OutPacket(Packet NewPack)
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{
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QueItem item = new QueItem();
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item.Packet = NewPack;
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item.Incoming = false;
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this.PacketQueue.Enqueue(item);
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}
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protected virtual void ClientLoop()
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{
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OpenSim.Framework.Console.MainConsole.Instance.WriteLine(OpenSim.Framework.Console.LogPriority.LOW, "OpenSimClient.cs:ClientLoop() - Entered loop");
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while (true)
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{
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QueItem nextPacket = PacketQueue.Dequeue();
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if (nextPacket.Incoming)
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{
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//is a incoming packet
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ProcessInPacket(nextPacket.Packet);
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}
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else
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{
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//is a out going packet
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ProcessOutPacket(nextPacket.Packet);
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}
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}
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}
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#endregion
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# region Setup
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protected virtual void InitNewClient()
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{
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OpenSim.Framework.Console.MainConsole.Instance.WriteLine(OpenSim.Framework.Console.LogPriority.LOW, "OpenSimClient.cs:InitNewClient() - Adding viewer agent to world");
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m_world.AddViewerAgent(this);
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world.Entity tempent = m_world.Entities[this.AgentID];
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this.ClientAvatar = (world.Avatar)tempent;
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}
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protected virtual void AuthUser()
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{
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// AuthenticateResponse sessionInfo = m_gridServer.AuthenticateSession(cirpack.CircuitCode.SessionID, cirpack.CircuitCode.ID, cirpack.CircuitCode.Code);
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AuthenticateResponse sessionInfo = this.m_networkServer.AuthenticateSession(cirpack.CircuitCode.SessionID, cirpack.CircuitCode.ID, cirpack.CircuitCode.Code);
|
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if (!sessionInfo.Authorised)
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{
|
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//session/circuit not authorised
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|
OpenSim.Framework.Console.MainConsole.Instance.WriteLine(OpenSim.Framework.Console.LogPriority.NORMAL, "OpenSimClient.cs:AuthUser() - New user request denied to " + userEP.ToString());
|
|
ClientThread.Abort();
|
|
}
|
|
else
|
|
{
|
|
OpenSim.Framework.Console.MainConsole.Instance.WriteLine(OpenSim.Framework.Console.LogPriority.NORMAL, "OpenSimClient.cs:AuthUser() - Got authenticated connection from " + userEP.ToString());
|
|
//session is authorised
|
|
this.AgentID = cirpack.CircuitCode.ID;
|
|
this.SessionID = cirpack.CircuitCode.SessionID;
|
|
this.CircuitCode = cirpack.CircuitCode.Code;
|
|
InitNewClient(); //shouldn't be called here as we might be a child agent and not want a full avatar
|
|
this.ClientAvatar.firstname = sessionInfo.LoginInfo.First;
|
|
this.ClientAvatar.lastname = sessionInfo.LoginInfo.Last;
|
|
if (sessionInfo.LoginInfo.SecureSession != LLUUID.Zero)
|
|
{
|
|
this.SecureSessionID = sessionInfo.LoginInfo.SecureSession;
|
|
}
|
|
|
|
// Create Inventory, currently only works for sandbox mode
|
|
if (m_sandboxMode)
|
|
{
|
|
this.SetupInventory(sessionInfo);
|
|
}
|
|
|
|
ClientLoop();
|
|
}
|
|
}
|
|
# endregion
|
|
|
|
#region Inventory Creation
|
|
private void SetupInventory(AuthenticateResponse sessionInfo)
|
|
{
|
|
AgentInventory inventory = null;
|
|
if (sessionInfo.LoginInfo.InventoryFolder != null)
|
|
{
|
|
inventory = this.CreateInventory(sessionInfo.LoginInfo.InventoryFolder);
|
|
if (sessionInfo.LoginInfo.BaseFolder != null)
|
|
{
|
|
if (!inventory.HasFolder(sessionInfo.LoginInfo.BaseFolder))
|
|
{
|
|
m_inventoryCache.CreateNewInventoryFolder(this, sessionInfo.LoginInfo.BaseFolder);
|
|
}
|
|
this.newAssetFolder = sessionInfo.LoginInfo.BaseFolder;
|
|
AssetBase[] inventorySet = m_assetCache.CreateNewInventorySet(this.AgentID);
|
|
if (inventorySet != null)
|
|
{
|
|
for (int i = 0; i < inventorySet.Length; i++)
|
|
{
|
|
if (inventorySet[i] != null)
|
|
{
|
|
m_inventoryCache.AddNewInventoryItem(this, sessionInfo.LoginInfo.BaseFolder, inventorySet[i]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
private AgentInventory CreateInventory(LLUUID baseFolder)
|
|
{
|
|
AgentInventory inventory = null;
|
|
if (this.m_userServer != null)
|
|
{
|
|
// a user server is set so request the inventory from it
|
|
Console.WriteLine("getting inventory from user server");
|
|
inventory = m_inventoryCache.FetchAgentsInventory(this.AgentID, m_userServer);
|
|
}
|
|
else
|
|
{
|
|
inventory = new AgentInventory();
|
|
inventory.AgentID = this.AgentID;
|
|
inventory.CreateRootFolder(this.AgentID, false);
|
|
m_inventoryCache.AddNewAgentsInventory(inventory);
|
|
m_inventoryCache.CreateNewInventoryFolder(this, baseFolder);
|
|
}
|
|
return inventory;
|
|
}
|
|
|
|
private void CreateInventoryItem(CreateInventoryItemPacket packet)
|
|
{
|
|
if (!(packet.InventoryBlock.Type == 3 || packet.InventoryBlock.Type == 7))
|
|
{
|
|
System.Console.WriteLine("Attempted to create " + Util.FieldToString(packet.InventoryBlock.Name) + " in inventory. Unsupported type");
|
|
return;
|
|
}
|
|
|
|
//lets try this out with creating a notecard
|
|
AssetBase asset = new AssetBase();
|
|
|
|
asset.Name = Util.FieldToString(packet.InventoryBlock.Name);
|
|
asset.Description = Util.FieldToString(packet.InventoryBlock.Description);
|
|
asset.InvType = packet.InventoryBlock.InvType;
|
|
asset.Type = packet.InventoryBlock.Type;
|
|
asset.FullID = LLUUID.Random();
|
|
|
|
switch (packet.InventoryBlock.Type)
|
|
{
|
|
case 7: // Notecard
|
|
asset.Data = new byte[0];
|
|
break;
|
|
|
|
case 3: // Landmark
|
|
String content;
|
|
content = "Landmark version 2\n";
|
|
content += "region_id " + m_regionData.SimUUID + "\n";
|
|
String strPos = String.Format("%.2f %.2f %.2f>",
|
|
this.ClientAvatar.Pos.X,
|
|
this.ClientAvatar.Pos.Y,
|
|
this.ClientAvatar.Pos.Z);
|
|
content += "local_pos " + strPos + "\n";
|
|
asset.Data = (new System.Text.ASCIIEncoding()).GetBytes(content);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
m_assetCache.AddAsset(asset);
|
|
m_inventoryCache.AddNewInventoryItem(this, packet.InventoryBlock.FolderID, asset);
|
|
}
|
|
#endregion
|
|
|
|
#region Nested Classes
|
|
|
|
public class QueItem
|
|
{
|
|
public QueItem()
|
|
{
|
|
}
|
|
|
|
public Packet Packet;
|
|
public bool Incoming;
|
|
}
|
|
#endregion
|
|
}
|
|
}
|