679 lines
27 KiB
C#
679 lines
27 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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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Net;
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using System.Reflection;
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using log4net;
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using Nini.Config;
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using Nwc.XmlRpc;
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using OpenMetaverse;
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using OpenSim.Framework;
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using OpenSim.Region.Framework.Interfaces;
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using OpenSim.Region.Framework.Scenes;
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using GridRegion = OpenSim.Services.Interfaces.GridRegion;
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using PresenceInfo = OpenSim.Services.Interfaces.PresenceInfo;
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using OpenSim.Services.Interfaces;
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namespace OpenSim.Region.CoreModules.Avatar.InstantMessage
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{
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public class MessageTransferModule : ISharedRegionModule, IMessageTransferModule
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{
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private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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private bool m_Enabled = false;
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protected List<Scene> m_Scenes = new List<Scene>();
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protected Dictionary<UUID, UUID> m_UserRegionMap = new Dictionary<UUID, UUID>();
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public event UndeliveredMessage OnUndeliveredMessage;
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private IPresenceService m_PresenceService;
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protected IPresenceService PresenceService
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{
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get
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{
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if (m_PresenceService == null)
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m_PresenceService = m_Scenes[0].RequestModuleInterface<IPresenceService>();
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return m_PresenceService;
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}
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}
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public virtual void Initialise(IConfigSource config)
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{
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IConfig cnf = config.Configs["Messaging"];
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if (cnf != null && cnf.GetString(
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"MessageTransferModule", "MessageTransferModule") !=
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"MessageTransferModule")
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{
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m_log.Debug("[MESSAGE TRANSFER]: Disabled by configuration");
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return;
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}
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m_Enabled = true;
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}
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public virtual void AddRegion(Scene scene)
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{
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if (!m_Enabled)
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return;
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lock (m_Scenes)
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{
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m_log.Debug("[MESSAGE TRANSFER]: Message transfer module active");
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scene.RegisterModuleInterface<IMessageTransferModule>(this);
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m_Scenes.Add(scene);
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}
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}
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public virtual void PostInitialise()
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{
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if (!m_Enabled)
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return;
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MainServer.Instance.AddXmlRPCHandler(
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"grid_instant_message", processXMLRPCGridInstantMessage);
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}
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public virtual void RegionLoaded(Scene scene)
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{
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}
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public virtual void RemoveRegion(Scene scene)
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{
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if (!m_Enabled)
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return;
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lock (m_Scenes)
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{
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m_Scenes.Remove(scene);
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}
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}
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public virtual void Close()
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{
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}
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public virtual string Name
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{
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get { return "MessageTransferModule"; }
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}
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public virtual Type ReplaceableInterface
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{
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get { return null; }
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}
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public virtual void SendInstantMessage(GridInstantMessage im, MessageResultNotification result)
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{
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UUID toAgentID = new UUID(im.toAgentID);
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// Try root avatar only first
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foreach (Scene scene in m_Scenes)
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{
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if (scene.Entities.ContainsKey(toAgentID) &&
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scene.Entities[toAgentID] is ScenePresence)
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{
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// m_log.DebugFormat(
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// "[INSTANT MESSAGE]: Looking for root agent {0} in {1}",
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// toAgentID.ToString(), scene.RegionInfo.RegionName);
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ScenePresence user = (ScenePresence) scene.Entities[toAgentID];
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if (!user.IsChildAgent)
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{
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// Local message
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m_log.DebugFormat("[INSTANT MESSAGE]: Delivering IM to root agent {0} {1}", user.Name, toAgentID);
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user.ControllingClient.SendInstantMessage(im);
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// Message sent
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result(true);
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return;
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}
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}
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}
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// try child avatar second
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foreach (Scene scene in m_Scenes)
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{
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// m_log.DebugFormat(
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// "[INSTANT MESSAGE]: Looking for child of {0} in {1}", toAgentID, scene.RegionInfo.RegionName);
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if (scene.Entities.ContainsKey(toAgentID) &&
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scene.Entities[toAgentID] is ScenePresence)
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{
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// Local message
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ScenePresence user = (ScenePresence) scene.Entities[toAgentID];
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m_log.DebugFormat("[INSTANT MESSAGE]: Delivering IM to child agent {0} {1}", user.Name, toAgentID);
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user.ControllingClient.SendInstantMessage(im);
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// Message sent
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result(true);
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return;
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}
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}
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m_log.DebugFormat("[INSTANT MESSAGE]: Delivering IM to {0} via XMLRPC", im.toAgentID);
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SendGridInstantMessageViaXMLRPC(im, result);
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return;
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}
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private void HandleUndeliveredMessage(GridInstantMessage im, MessageResultNotification result)
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{
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UndeliveredMessage handlerUndeliveredMessage = OnUndeliveredMessage;
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// If this event has handlers, then the IM will be considered
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// delivered. This will suppress the error message.
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//
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if (handlerUndeliveredMessage != null)
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{
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handlerUndeliveredMessage(im);
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result(true);
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return;
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}
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//m_log.DebugFormat("[INSTANT MESSAGE]: Undeliverable");
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result(false);
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}
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/// <summary>
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/// Process a XMLRPC Grid Instant Message
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/// </summary>
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/// <param name="request">XMLRPC parameters
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/// </param>
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/// <returns>Nothing much</returns>
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protected virtual XmlRpcResponse processXMLRPCGridInstantMessage(XmlRpcRequest request, IPEndPoint remoteClient)
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{
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bool successful = false;
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// TODO: For now, as IMs seem to be a bit unreliable on OSGrid, catch all exception that
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// happen here and aren't caught and log them.
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try
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{
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// various rational defaults
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UUID fromAgentID = UUID.Zero;
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UUID toAgentID = UUID.Zero;
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UUID imSessionID = UUID.Zero;
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uint timestamp = 0;
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string fromAgentName = "";
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string message = "";
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byte dialog = (byte)0;
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bool fromGroup = false;
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byte offline = (byte)0;
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uint ParentEstateID=0;
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Vector3 Position = Vector3.Zero;
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UUID RegionID = UUID.Zero ;
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byte[] binaryBucket = new byte[0];
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float pos_x = 0;
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float pos_y = 0;
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float pos_z = 0;
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//m_log.Info("Processing IM");
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Hashtable requestData = (Hashtable)request.Params[0];
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// Check if it's got all the data
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if (requestData.ContainsKey("from_agent_id")
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&& requestData.ContainsKey("to_agent_id") && requestData.ContainsKey("im_session_id")
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&& requestData.ContainsKey("timestamp") && requestData.ContainsKey("from_agent_name")
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&& requestData.ContainsKey("message") && requestData.ContainsKey("dialog")
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&& requestData.ContainsKey("from_group")
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&& requestData.ContainsKey("offline") && requestData.ContainsKey("parent_estate_id")
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&& requestData.ContainsKey("position_x") && requestData.ContainsKey("position_y")
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&& requestData.ContainsKey("position_z") && requestData.ContainsKey("region_id")
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&& requestData.ContainsKey("binary_bucket"))
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{
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// Do the easy way of validating the UUIDs
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UUID.TryParse((string)requestData["from_agent_id"], out fromAgentID);
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UUID.TryParse((string)requestData["to_agent_id"], out toAgentID);
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UUID.TryParse((string)requestData["im_session_id"], out imSessionID);
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UUID.TryParse((string)requestData["region_id"], out RegionID);
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try
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{
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timestamp = (uint)Convert.ToInt32((string)requestData["timestamp"]);
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}
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catch (ArgumentException)
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{
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}
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catch (FormatException)
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{
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}
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catch (OverflowException)
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{
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}
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fromAgentName = (string)requestData["from_agent_name"];
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message = (string)requestData["message"];
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if (message == null)
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message = string.Empty;
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// Bytes don't transfer well over XMLRPC, so, we Base64 Encode them.
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string requestData1 = (string)requestData["dialog"];
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if (string.IsNullOrEmpty(requestData1))
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{
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dialog = 0;
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}
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else
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{
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byte[] dialogdata = Convert.FromBase64String(requestData1);
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dialog = dialogdata[0];
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}
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if ((string)requestData["from_group"] == "TRUE")
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fromGroup = true;
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string requestData2 = (string)requestData["offline"];
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if (String.IsNullOrEmpty(requestData2))
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{
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offline = 0;
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}
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else
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{
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byte[] offlinedata = Convert.FromBase64String(requestData2);
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offline = offlinedata[0];
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}
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try
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{
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ParentEstateID = (uint)Convert.ToInt32((string)requestData["parent_estate_id"]);
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}
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catch (ArgumentException)
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{
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}
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catch (FormatException)
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{
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}
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catch (OverflowException)
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{
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}
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try
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{
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pos_x = (uint)Convert.ToInt32((string)requestData["position_x"]);
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}
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catch (ArgumentException)
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{
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}
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catch (FormatException)
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{
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}
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catch (OverflowException)
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{
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}
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try
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{
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pos_y = (uint)Convert.ToInt32((string)requestData["position_y"]);
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}
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catch (ArgumentException)
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{
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}
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catch (FormatException)
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{
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}
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catch (OverflowException)
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{
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}
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try
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{
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pos_z = (uint)Convert.ToInt32((string)requestData["position_z"]);
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}
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catch (ArgumentException)
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{
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}
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catch (FormatException)
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{
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}
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catch (OverflowException)
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{
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}
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Position = new Vector3(pos_x, pos_y, pos_z);
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string requestData3 = (string)requestData["binary_bucket"];
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if (string.IsNullOrEmpty(requestData3))
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{
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binaryBucket = new byte[0];
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}
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else
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{
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binaryBucket = Convert.FromBase64String(requestData3);
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}
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// Create a New GridInstantMessageObject the the data
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GridInstantMessage gim = new GridInstantMessage();
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gim.fromAgentID = fromAgentID.Guid;
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gim.fromAgentName = fromAgentName;
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gim.fromGroup = fromGroup;
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gim.imSessionID = imSessionID.Guid;
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gim.RegionID = RegionID.Guid;
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gim.timestamp = timestamp;
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gim.toAgentID = toAgentID.Guid;
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gim.message = message;
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gim.dialog = dialog;
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gim.offline = offline;
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gim.ParentEstateID = ParentEstateID;
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gim.Position = Position;
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gim.binaryBucket = binaryBucket;
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// Trigger the Instant message in the scene.
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foreach (Scene scene in m_Scenes)
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{
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if (scene.Entities.ContainsKey(toAgentID) &&
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scene.Entities[toAgentID] is ScenePresence)
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{
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ScenePresence user =
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(ScenePresence)scene.Entities[toAgentID];
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if (!user.IsChildAgent)
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{
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scene.EventManager.TriggerIncomingInstantMessage(gim);
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successful = true;
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}
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}
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}
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if (!successful)
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{
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// If the message can't be delivered to an agent, it
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// is likely to be a group IM. On a group IM, the
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// imSessionID = toAgentID = group id. Raise the
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// unhandled IM event to give the groups module
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// a chance to pick it up. We raise that in a random
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// scene, since the groups module is shared.
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//
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m_Scenes[0].EventManager.TriggerUnhandledInstantMessage(gim);
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}
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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("[INSTANT MESSAGE]: Caught unexpected exception:", e);
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successful = false;
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}
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//Send response back to region calling if it was successful
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// calling region uses this to know when to look up a user's location again.
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XmlRpcResponse resp = new XmlRpcResponse();
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Hashtable respdata = new Hashtable();
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if (successful)
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respdata["success"] = "TRUE";
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else
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respdata["success"] = "FALSE";
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resp.Value = respdata;
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return resp;
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}
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/// <summary>
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/// delegate for sending a grid instant message asynchronously
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/// </summary>
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public delegate void GridInstantMessageDelegate(GridInstantMessage im, MessageResultNotification result, UUID prevRegionID);
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protected virtual void GridInstantMessageCompleted(IAsyncResult iar)
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{
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GridInstantMessageDelegate icon =
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(GridInstantMessageDelegate)iar.AsyncState;
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icon.EndInvoke(iar);
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}
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protected virtual void SendGridInstantMessageViaXMLRPC(GridInstantMessage im, MessageResultNotification result)
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{
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GridInstantMessageDelegate d = SendGridInstantMessageViaXMLRPCAsync;
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d.BeginInvoke(im, result, UUID.Zero, GridInstantMessageCompleted, d);
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}
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/// <summary>
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/// Recursive SendGridInstantMessage over XMLRPC method.
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/// This is called from within a dedicated thread.
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/// The first time this is called, prevRegionHandle will be 0 Subsequent times this is called from
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/// itself, prevRegionHandle will be the last region handle that we tried to send.
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/// If the handles are the same, we look up the user's location using the grid.
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/// If the handles are still the same, we end. The send failed.
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/// </summary>
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/// <param name="prevRegionHandle">
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/// Pass in 0 the first time this method is called. It will be called recursively with the last
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/// regionhandle tried
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/// </param>
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protected virtual void SendGridInstantMessageViaXMLRPCAsync(GridInstantMessage im, MessageResultNotification result, UUID prevRegionID)
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{
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UUID toAgentID = new UUID(im.toAgentID);
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PresenceInfo upd = null;
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bool lookupAgent = false;
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lock (m_UserRegionMap)
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{
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if (m_UserRegionMap.ContainsKey(toAgentID))
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{
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upd = new PresenceInfo();
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upd.RegionID = m_UserRegionMap[toAgentID];
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// We need to compare the current regionhandle with the previous region handle
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// or the recursive loop will never end because it will never try to lookup the agent again
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if (prevRegionID == upd.RegionID)
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{
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lookupAgent = true;
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}
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}
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else
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{
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lookupAgent = true;
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}
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}
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// Are we needing to look-up an agent?
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if (lookupAgent)
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{
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// Non-cached user agent lookup.
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PresenceInfo[] presences = PresenceService.GetAgents(new string[] { toAgentID.ToString() });
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if (presences != null && presences.Length > 0)
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upd = presences[0];
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if (upd != null)
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{
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// check if we've tried this before..
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// This is one way to end the recursive loop
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//
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if (upd.RegionID == prevRegionID)
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{
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m_log.Error("[GRID INSTANT MESSAGE]: Unable to deliver an instant message");
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HandleUndeliveredMessage(im, result);
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return;
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}
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}
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else
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{
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m_log.Error("[GRID INSTANT MESSAGE]: Unable to deliver an instant message");
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HandleUndeliveredMessage(im, result);
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return;
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}
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}
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if (upd != null)
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{
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GridRegion reginfo = m_Scenes[0].GridService.GetRegionByUUID(m_Scenes[0].RegionInfo.ScopeID,
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upd.RegionID);
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if (reginfo != null)
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{
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Hashtable msgdata = ConvertGridInstantMessageToXMLRPC(im);
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// Not actually used anymore, left in for compatibility
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// Remove at next interface change
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//
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msgdata["region_handle"] = 0;
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bool imresult = doIMSending(reginfo, msgdata);
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if (imresult)
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{
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// IM delivery successful, so store the Agent's location in our local cache.
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lock (m_UserRegionMap)
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{
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if (m_UserRegionMap.ContainsKey(toAgentID))
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{
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m_UserRegionMap[toAgentID] = upd.RegionID;
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}
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else
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{
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m_UserRegionMap.Add(toAgentID, upd.RegionID);
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}
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}
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result(true);
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}
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else
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{
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// try again, but lookup user this time.
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// Warning, this must call the Async version
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// of this method or we'll be making thousands of threads
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// The version within the spawned thread is SendGridInstantMessageViaXMLRPCAsync
|
|
// The version that spawns the thread is SendGridInstantMessageViaXMLRPC
|
|
|
|
// This is recursive!!!!!
|
|
SendGridInstantMessageViaXMLRPCAsync(im, result,
|
|
upd.RegionID);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
m_log.WarnFormat("[GRID INSTANT MESSAGE]: Unable to find region {0}", upd.RegionID);
|
|
HandleUndeliveredMessage(im, result);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
HandleUndeliveredMessage(im, result);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// This actually does the XMLRPC Request
|
|
/// </summary>
|
|
/// <param name="reginfo">RegionInfo we pull the data out of to send the request to</param>
|
|
/// <param name="xmlrpcdata">The Instant Message data Hashtable</param>
|
|
/// <returns>Bool if the message was successfully delivered at the other side.</returns>
|
|
protected virtual bool doIMSending(GridRegion reginfo, Hashtable xmlrpcdata)
|
|
{
|
|
|
|
ArrayList SendParams = new ArrayList();
|
|
SendParams.Add(xmlrpcdata);
|
|
XmlRpcRequest GridReq = new XmlRpcRequest("grid_instant_message", SendParams);
|
|
try
|
|
{
|
|
|
|
XmlRpcResponse GridResp = GridReq.Send("http://" + reginfo.ExternalHostName + ":" + reginfo.HttpPort, 3000);
|
|
|
|
Hashtable responseData = (Hashtable)GridResp.Value;
|
|
|
|
if (responseData.ContainsKey("success"))
|
|
{
|
|
if ((string)responseData["success"] == "TRUE")
|
|
{
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
catch (WebException e)
|
|
{
|
|
m_log.ErrorFormat("[GRID INSTANT MESSAGE]: Error sending message to http://{0}:{1} the host didn't respond ({2})",
|
|
reginfo.ExternalHostName, reginfo.HttpPort, e.Message);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Get ulong region handle for region by it's Region UUID.
|
|
/// We use region handles over grid comms because there's all sorts of free and cool caching.
|
|
/// </summary>
|
|
/// <param name="regionID">UUID of region to get the region handle for</param>
|
|
/// <returns></returns>
|
|
// private virtual ulong getLocalRegionHandleFromUUID(UUID regionID)
|
|
// {
|
|
// ulong returnhandle = 0;
|
|
//
|
|
// lock (m_Scenes)
|
|
// {
|
|
// foreach (Scene sn in m_Scenes)
|
|
// {
|
|
// if (sn.RegionInfo.RegionID == regionID)
|
|
// {
|
|
// returnhandle = sn.RegionInfo.RegionHandle;
|
|
// break;
|
|
// }
|
|
// }
|
|
// }
|
|
// return returnhandle;
|
|
// }
|
|
|
|
/// <summary>
|
|
/// Takes a GridInstantMessage and converts it into a Hashtable for XMLRPC
|
|
/// </summary>
|
|
/// <param name="msg">The GridInstantMessage object</param>
|
|
/// <returns>Hashtable containing the XMLRPC request</returns>
|
|
protected virtual Hashtable ConvertGridInstantMessageToXMLRPC(GridInstantMessage msg)
|
|
{
|
|
Hashtable gim = new Hashtable();
|
|
gim["from_agent_id"] = msg.fromAgentID.ToString();
|
|
// Kept for compatibility
|
|
gim["from_agent_session"] = UUID.Zero.ToString();
|
|
gim["to_agent_id"] = msg.toAgentID.ToString();
|
|
gim["im_session_id"] = msg.imSessionID.ToString();
|
|
gim["timestamp"] = msg.timestamp.ToString();
|
|
gim["from_agent_name"] = msg.fromAgentName;
|
|
gim["message"] = msg.message;
|
|
byte[] dialogdata = new byte[1];dialogdata[0] = msg.dialog;
|
|
gim["dialog"] = Convert.ToBase64String(dialogdata,Base64FormattingOptions.None);
|
|
|
|
if (msg.fromGroup)
|
|
gim["from_group"] = "TRUE";
|
|
else
|
|
gim["from_group"] = "FALSE";
|
|
byte[] offlinedata = new byte[1]; offlinedata[0] = msg.offline;
|
|
gim["offline"] = Convert.ToBase64String(offlinedata, Base64FormattingOptions.None);
|
|
gim["parent_estate_id"] = msg.ParentEstateID.ToString();
|
|
gim["position_x"] = msg.Position.X.ToString();
|
|
gim["position_y"] = msg.Position.Y.ToString();
|
|
gim["position_z"] = msg.Position.Z.ToString();
|
|
gim["region_id"] = msg.RegionID.ToString();
|
|
gim["binary_bucket"] = Convert.ToBase64String(msg.binaryBucket,Base64FormattingOptions.None);
|
|
return gim;
|
|
}
|
|
|
|
}
|
|
}
|