562 lines
24 KiB
C#
562 lines
24 KiB
C#
/*
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* Copyright (c) Contributors, http://opensimulator.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 OpenSimulator 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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/* This file borrows heavily from MXPServer.cs - the reference MXPServer
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* See http://www.bubblecloud.org for a copy of the original file and
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* implementation details. */
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using System;
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using System.Collections.Generic;
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using System.Reflection;
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using System.Threading;
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using log4net;
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using MXP;
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using MXP.Messages;
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using OpenMetaverse;
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using OpenSim.Client.MXP.ClientStack;
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using OpenSim.Framework;
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using OpenSim.Region.Framework.Scenes;
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using OpenSim.Framework.Communications;
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using OpenSim.Services.Interfaces;
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using System.Security.Cryptography;
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namespace OpenSim.Client.MXP.PacketHandler
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{
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public class MXPPacketServer
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{
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internal static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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#region Fields
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private readonly List<MXPClientView> m_clients = new List<MXPClientView>();
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private readonly Dictionary<UUID, Scene> m_scenes;
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private readonly Transmitter m_transmitter;
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// private readonly Thread m_clientThread;
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private readonly IList<Session> m_sessions = new List<Session>();
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private readonly IList<Session> m_sessionsToClient = new List<Session>();
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private readonly IList<MXPClientView> m_sessionsToRemove = new List<MXPClientView>();
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private readonly int m_port;
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// private readonly bool m_accountsAuthenticate;
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private readonly String m_programName;
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private readonly byte m_programMajorVersion;
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private readonly byte m_programMinorVersion;
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#endregion
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#region Constructors
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public MXPPacketServer(int port, Dictionary<UUID, Scene> scenes, bool accountsAuthenticate)
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{
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m_port = port;
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// m_accountsAuthenticate = accountsAuthenticate;
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m_scenes = scenes;
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m_programMinorVersion = 63;
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m_programMajorVersion = 0;
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m_programName = "OpenSimulator";
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m_transmitter = new Transmitter(port);
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StartListener();
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}
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public void StartListener()
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{
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m_log.Info("[MXP ClientStack] Transmitter starting on UDP server port: " + m_port);
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m_transmitter.Startup();
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m_log.Info("[MXP ClientStack] Transmitter started. MXP version: "+MxpConstants.ProtocolMajorVersion+"."+MxpConstants.ProtocolMinorVersion+" Source Revision: "+MxpConstants.ProtocolSourceRevision);
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}
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#endregion
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#region Properties
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/// <summary>
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/// Number of sessions pending. (Process() accepts pending sessions).
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/// </summary>
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public int PendingSessionCount
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{
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get
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{
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return m_transmitter.PendingSessionCount;
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}
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}
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/// <summary>
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/// Number of connected sessions.
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/// </summary>
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public int SessionCount
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{
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get
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{
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return m_sessions.Count;
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}
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}
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/// <summary>
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/// Property reflecting whether client transmitter threads are alive.
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/// </summary>
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public bool IsTransmitterAlive
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{
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get
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{
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return m_transmitter != null && m_transmitter.IsAlive;
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}
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}
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/// <summary>
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/// Number of packets sent.
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/// </summary>
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public ulong PacketsSent
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{
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get
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{
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return m_transmitter != null ? m_transmitter.PacketsSent : 0;
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}
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}
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/// <summary>
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/// Number of packets received.
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/// </summary>
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public ulong PacketsReceived
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{
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get
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{
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return m_transmitter != null ? m_transmitter.PacketsReceived : 0;
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}
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}
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/// <summary>
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/// Bytes client has received so far.
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/// </summary>
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public ulong BytesReceived
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{
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get
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{
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return m_transmitter != null ? m_transmitter.BytesReceived : 0;
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}
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}
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/// <summary>
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/// Bytes client has sent so far.
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/// </summary>
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public ulong BytesSent
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{
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get
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{
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return m_transmitter != null ? m_transmitter.BytesSent : 0;
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}
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}
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/// <summary>
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/// Number of bytes received (bytes per second) during past second.
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/// </summary>
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public double ReceiveRate
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{
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get
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{
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return m_transmitter != null ? m_transmitter.ReceiveRate : 0;
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}
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}
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/// <summary>
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/// Number of bytes sent (bytes per second) during past second.
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/// </summary>
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public double SendRate
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{
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get
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{
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return m_transmitter != null ? m_transmitter.SendRate : 0;
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}
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}
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#endregion
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#region Session Management
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public void Disconnect(Session session)
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{
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if (session.IsConnected)
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{
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Message message = MessageFactory.Current.ReserveMessage(typeof(LeaveRequestMessage));
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session.Send(message);
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MessageFactory.Current.ReleaseMessage(message);
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}
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else
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{
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throw new Exception("Not connected.");
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}
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}
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#endregion
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#region Processing
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public void Process()
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{
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ProcessMessages();
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Clean();
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}
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public void Clean()
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{
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foreach (MXPClientView clientView in m_clients)
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{
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if (clientView.Session.SessionState == SessionState.Disconnected)
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{
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m_sessionsToRemove.Add(clientView);
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}
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}
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foreach (MXPClientView clientView in m_sessionsToRemove)
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{
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clientView.Scene.RemoveClient(clientView.AgentId);
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clientView.OnClean();
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m_clients.Remove(clientView);
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m_sessions.Remove(clientView.Session);
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}
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m_sessionsToRemove.Clear();
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}
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public void ProcessMessages()
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{
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if (m_transmitter.PendingSessionCount > 0)
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{
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Session tmp = m_transmitter.AcceptPendingSession();
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m_sessions.Add(tmp);
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m_sessionsToClient.Add(tmp);
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}
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List<Session> tmpRemove = new List<Session>();
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foreach (Session session in m_sessionsToClient)
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{
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while (session.AvailableMessages > 0)
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{
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Message message = session.Receive();
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if (message.GetType() == typeof (JoinRequestMessage))
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{
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JoinRequestMessage joinRequestMessage = (JoinRequestMessage) message;
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m_log.Info("[MXP ClientStack]: Session join request: " + session.SessionId + " (" +
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(session.IsIncoming ? "from" : "to") + " " + session.RemoteEndPoint.Address + ":" +
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session.RemoteEndPoint.Port + ")");
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try
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{
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if (joinRequestMessage.BubbleId == Guid.Empty)
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{
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foreach (Scene scene in m_scenes.Values)
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{
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if (scene.RegionInfo.RegionName == joinRequestMessage.BubbleName)
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{
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m_log.Info("[MXP ClientStack]: Resolved region by name: " + joinRequestMessage.BubbleName + " (" + scene.RegionInfo.RegionID + ")");
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joinRequestMessage.BubbleId = scene.RegionInfo.RegionID.Guid;
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}
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}
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}
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if (joinRequestMessage.BubbleId == Guid.Empty)
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{
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m_log.Warn("[MXP ClientStack]: Failed to resolve region by name: " + joinRequestMessage.BubbleName);
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}
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UUID sceneId = new UUID(joinRequestMessage.BubbleId);
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bool regionExists = true;
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if (!m_scenes.ContainsKey(sceneId))
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{
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m_log.Info("[MXP ClientStack]: No such region: " + sceneId);
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regionExists = false;
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}
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UUID userId = UUID.Zero;
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UserAccount account = null;
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bool authorized = regionExists ? AuthoriseUser(joinRequestMessage.ParticipantName,
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joinRequestMessage.ParticipantPassphrase,
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new UUID(joinRequestMessage.BubbleId), out account)
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: false;
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if (authorized)
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{
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Scene scene = m_scenes[sceneId];
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UUID mxpSessionID = UUID.Random();
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string reason;
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m_log.Debug("[MXP ClientStack]: Session join request success: " + session.SessionId + " (" +
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(session.IsIncoming ? "from" : "to") + " " + session.RemoteEndPoint.Address + ":" +
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session.RemoteEndPoint.Port + ")");
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m_log.Debug("[MXP ClientStack]: Attaching UserAgent to UserProfile...");
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UUID secureSession = UUID.Zero;
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AttachUserAgentToUserProfile(account, session, mxpSessionID, sceneId, out secureSession);
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m_log.Debug("[MXP ClientStack]: Attached UserAgent to UserProfile.");
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m_log.Debug("[MXP ClientStack]: Preparing Scene to Connection...");
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if (!PrepareSceneForConnection(mxpSessionID, secureSession, sceneId, account, out reason))
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{
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m_log.DebugFormat("[MXP ClientStack]: Scene refused connection: {0}", reason);
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DeclineConnection(session, joinRequestMessage);
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tmpRemove.Add(session);
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continue;
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}
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m_log.Debug("[MXP ClientStack]: Prepared Scene to Connection.");
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m_log.Debug("[MXP ClientStack]: Accepting connection...");
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AcceptConnection(session, joinRequestMessage, mxpSessionID, userId);
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m_log.Info("[MXP ClientStack]: Accepted connection.");
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m_log.Debug("[MXP ClientStack]: Creating ClientView....");
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MXPClientView client = new MXPClientView(session, mxpSessionID, userId, scene, account.FirstName, account.LastName);
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m_clients.Add(client);
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m_log.Debug("[MXP ClientStack]: Created ClientView.");
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client.MXPSendSynchronizationBegin(m_scenes[new UUID(joinRequestMessage.BubbleId)].SceneContents.GetTotalObjectsCount());
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m_log.Debug("[MXP ClientStack]: Starting ClientView...");
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try
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{
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client.Start();
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m_log.Debug("[MXP ClientStack]: Started ClientView.");
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}
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catch (Exception e)
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{
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m_log.Error(e);
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}
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m_log.Debug("[MXP ClientStack]: Connected");
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}
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else
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{
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m_log.Info("[MXP ClientStack]: Session join request failure: " + session.SessionId + " (" +
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(session.IsIncoming ? "from" : "to") + " " + session.RemoteEndPoint.Address + ":" +
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session.RemoteEndPoint.Port + ")");
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DeclineConnection(session, joinRequestMessage);
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}
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}
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catch (Exception e)
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{
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m_log.Error("[MXP ClientStack]: Session join request failure: " + session.SessionId + " (" +
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(session.IsIncoming ? "from" : "to") + " " + session.RemoteEndPoint.Address + ":" +
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session.RemoteEndPoint.Port + "): "+e.ToString()+" :"+e.StackTrace.ToString());
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}
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tmpRemove.Add(session);
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}
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}
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}
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foreach (Session session in tmpRemove)
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{
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m_sessionsToClient.Remove(session);
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}
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foreach (MXPClientView clientView in m_clients)
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{
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int messagesProcessedCount = 0;
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Session session = clientView.Session;
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while (session.AvailableMessages > 0)
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{
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Message message = session.Receive();
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if (message.GetType() == typeof(LeaveRequestMessage))
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{
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LeaveResponseMessage leaveResponseMessage = (LeaveResponseMessage)MessageFactory.Current.ReserveMessage(
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typeof(LeaveResponseMessage));
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m_log.Debug("[MXP ClientStack]: Session leave request: " + session.SessionId + " (" + (session.IsIncoming ? "from" : "to") + " " + session.RemoteEndPoint.Address + ":" + session.RemoteEndPoint.Port + ")");
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leaveResponseMessage.RequestMessageId = message.MessageId;
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leaveResponseMessage.FailureCode = 0;
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session.Send(leaveResponseMessage);
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if (session.SessionState != SessionState.Disconnected)
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{
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session.SetStateDisconnected();
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}
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m_log.Debug("[MXP ClientStack]: Removing Client from Scene");
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//clientView.Scene.RemoveClient(clientView.AgentId);
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}
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if (message.GetType() == typeof(LeaveResponseMessage))
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{
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LeaveResponseMessage leaveResponseMessage = (LeaveResponseMessage)message;
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m_log.Debug("[MXP ClientStack]: Session leave response: " + session.SessionId + " (" + (session.IsIncoming ? "from" : "to") + " " + session.RemoteEndPoint.Address + ":" + session.RemoteEndPoint.Port + ")");
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if (leaveResponseMessage.FailureCode == 0)
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{
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session.SetStateDisconnected();
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}
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m_log.Debug("[MXP ClientStack]: Removing Client from Scene");
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//clientView.Scene.RemoveClient(clientView.AgentId);
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}
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else
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{
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clientView.MXPPRocessMessage(message);
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}
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MessageFactory.Current.ReleaseMessage(message);
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messagesProcessedCount++;
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if (messagesProcessedCount > 1000)
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{
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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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private void AcceptConnection(Session session, JoinRequestMessage joinRequestMessage, UUID mxpSessionID, UUID userId)
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{
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JoinResponseMessage joinResponseMessage = (JoinResponseMessage)MessageFactory.Current.ReserveMessage(
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typeof(JoinResponseMessage));
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joinResponseMessage.RequestMessageId = joinRequestMessage.MessageId;
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joinResponseMessage.FailureCode = MxpResponseCodes.SUCCESS;
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joinResponseMessage.BubbleId = joinRequestMessage.BubbleId;
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joinResponseMessage.ParticipantId = userId.Guid;
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joinResponseMessage.AvatarId = userId.Guid;
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joinResponseMessage.BubbleAssetCacheUrl = "http://" +
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NetworkUtil.GetHostFor(session.RemoteEndPoint.Address,
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m_scenes[
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new UUID(joinRequestMessage.BubbleId)].
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RegionInfo.
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ExternalHostName) + ":" +
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m_scenes[new UUID(joinRequestMessage.BubbleId)].RegionInfo.
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HttpPort + "/assets/";
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joinResponseMessage.BubbleName = m_scenes[new UUID(joinRequestMessage.BubbleId)].RegionInfo.RegionName;
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joinResponseMessage.BubbleRange = 128;
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joinResponseMessage.BubblePerceptionRange = 128 + 256;
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joinResponseMessage.BubbleRealTime = 0;
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joinResponseMessage.ProgramName = m_programName;
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joinResponseMessage.ProgramMajorVersion = m_programMajorVersion;
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joinResponseMessage.ProgramMinorVersion = m_programMinorVersion;
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joinResponseMessage.ProtocolMajorVersion = MxpConstants.ProtocolMajorVersion;
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joinResponseMessage.ProtocolMinorVersion = MxpConstants.ProtocolMinorVersion;
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joinResponseMessage.ProtocolSourceRevision = MxpConstants.ProtocolSourceRevision;
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session.Send(joinResponseMessage);
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session.SetStateConnected();
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}
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private void DeclineConnection(Session session, Message joinRequestMessage)
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{
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JoinResponseMessage joinResponseMessage = (JoinResponseMessage)MessageFactory.Current.ReserveMessage(typeof(JoinResponseMessage));
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joinResponseMessage.RequestMessageId = joinRequestMessage.MessageId;
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joinResponseMessage.FailureCode = MxpResponseCodes.UNAUTHORIZED_OPERATION;
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joinResponseMessage.ProgramName = m_programName;
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joinResponseMessage.ProgramMajorVersion = m_programMajorVersion;
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joinResponseMessage.ProgramMinorVersion = m_programMinorVersion;
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joinResponseMessage.ProtocolMajorVersion = MxpConstants.ProtocolMajorVersion;
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joinResponseMessage.ProtocolMinorVersion = MxpConstants.ProtocolMinorVersion;
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joinResponseMessage.ProtocolSourceRevision = MxpConstants.ProtocolSourceRevision;
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session.Send(joinResponseMessage);
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session.SetStateDisconnected();
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}
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public bool AuthoriseUser(string participantName, string password, UUID sceneId, out UserAccount account)
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{
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string firstName = "";
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string lastName = "";
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account = null;
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string[] nameParts = participantName.Split(' ');
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if (nameParts.Length != 2)
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{
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m_log.Error("[MXP ClientStack]: Login failed as user name is not formed of first and last name separated by space: " + participantName);
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return false;
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}
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firstName = nameParts[0];
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lastName = nameParts[1];
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account = m_scenes[sceneId].UserAccountService.GetUserAccount(m_scenes[sceneId].RegionInfo.ScopeID, firstName, lastName);
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if (account != null)
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return (m_scenes[sceneId].AuthenticationService.Authenticate(account.PrincipalID, password, 1) != string.Empty);
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return false;
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}
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private void AttachUserAgentToUserProfile(UserAccount account, Session session, UUID sessionId, UUID sceneId, out UUID secureSessionId)
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{
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secureSessionId = UUID.Random();
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Scene scene = m_scenes[sceneId];
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scene.PresenceService.LoginAgent(account.PrincipalID.ToString(), sessionId, secureSessionId);
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}
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private bool PrepareSceneForConnection(UUID sessionId, UUID secureSessionId, UUID sceneId, UserAccount account, out string reason)
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{
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Scene scene = m_scenes[sceneId];
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AgentCircuitData agent = new AgentCircuitData();
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agent.AgentID = account.PrincipalID;
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agent.firstname = account.FirstName;
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agent.lastname = account.LastName;
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agent.SessionID = sessionId;
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agent.SecureSessionID = secureSessionId;
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agent.circuitcode = sessionId.CRC();
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agent.BaseFolder = UUID.Zero;
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agent.InventoryFolder = UUID.Zero;
|
|
agent.startpos = new Vector3(0, 0, 0); // TODO Fill in region start position
|
|
agent.CapsPath = "http://localhost/";
|
|
agent.Appearance = scene.AvatarService.GetAppearance(account.PrincipalID);
|
|
|
|
if (agent.Appearance == null)
|
|
{
|
|
m_log.WarnFormat("[INTER]: Appearance not found for {0} {1}. Creating default.", agent.firstname, agent.lastname);
|
|
agent.Appearance = new AvatarAppearance();
|
|
}
|
|
|
|
return scene.NewUserConnection(agent, 0, out reason);
|
|
}
|
|
|
|
public void PrintDebugInformation()
|
|
{
|
|
m_log.Info("[MXP ClientStack]: Statistics report");
|
|
m_log.Info("Pending Sessions: " + PendingSessionCount);
|
|
m_log.Info("Sessions: " + SessionCount + " (Clients: " + m_clients.Count + " )");
|
|
m_log.Info("Transmitter Alive?: " + IsTransmitterAlive);
|
|
m_log.Info("Packets Sent/Received: " + PacketsSent + " / " + PacketsReceived);
|
|
m_log.Info("Bytes Sent/Received: " + BytesSent + " / " + BytesReceived);
|
|
m_log.Info("Send/Receive Rate (bps): " + SendRate + " / " + ReceiveRate);
|
|
}
|
|
|
|
#endregion
|
|
|
|
}
|
|
}
|