69975763d2
The major departure from flotsam is to send only one message per destination region, as opposed to one message per group member. This reduces messaging considerably in large groups that have clusters of members in certain regions.
682 lines
26 KiB
C#
682 lines
26 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 Mono.Addins;
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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.Framework.Servers;
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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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[Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule", Id = "MessageTransferModule")]
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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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// 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 sp = scene.GetScenePresence(toAgentID);
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if (sp != null && !sp.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}", sp.Name, toAgentID);
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sp.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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// 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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ScenePresence sp = scene.GetScenePresence(toAgentID);
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if (sp != null)
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{
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// Local message
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// m_log.DebugFormat("[INSTANT MESSAGE]: Delivering IM to child agent {0} {1}", sp.Name, toAgentID);
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sp.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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}
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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 an IM from an agent will be
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// considered 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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if (im.dialog == (byte)InstantMessageDialog.MessageFromAgent)
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result(true);
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else
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result(false);
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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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ScenePresence sp = scene.GetScenePresence(toAgentID);
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if (sp != null && !sp.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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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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{
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foreach (PresenceInfo p in presences)
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{
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if (p.RegionID != UUID.Zero)
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{
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upd = p;
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break;
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}
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}
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}
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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);
|
|
}
|
|
else
|
|
{
|
|
// try again, but lookup user this time.
|
|
// Warning, this must call the Async version
|
|
// of this method or we'll be making thousands of threads
|
|
// 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(reginfo.ServerURI, 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 {0} the host didn't respond " + e.ToString(), reginfo.ServerURI.ToString());
|
|
}
|
|
|
|
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"] = new UUID(msg.RegionID).ToString();
|
|
gim["binary_bucket"] = Convert.ToBase64String(msg.binaryBucket,Base64FormattingOptions.None);
|
|
return gim;
|
|
}
|
|
|
|
}
|
|
}
|