OpenSim-Test/OpenSim/Region/Environment/Modules/Avatar/InstantMessage/InstantMessageModule.cs

/*
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 *       derived from this software without specific prior written permission.
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 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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using System.Collections.Generic;
using libsecondlife;
using Nini.Config;
using OpenSim.Framework;
using OpenSim.Region.Environment.Interfaces;
using OpenSim.Region.Environment.Scenes;

namespace OpenSim.Region.Environment.Modules.Avatar.InstantMessage
{
    public class InstantMessageModule : IRegionModule
    {
        private readonly List<Scene> m_scenes = new List<Scene>();

        #region IRegionModule Members

        public void Initialise(Scene scene, IConfigSource config)
        {
            lock (m_scenes)
            {
                if (m_scenes.Count == 0)
                {
                    //scene.AddXmlRPCHandler("avatar_location_update", processPresenceUpdate);
                }

                if (!m_scenes.Contains(scene))
                {
                    m_scenes.Add(scene);
                    scene.EventManager.OnNewClient += OnNewClient;
                    scene.EventManager.OnGridInstantMessageToIMModule += OnGridInstantMessage;
                }
            }
        }

        public void PostInitialise()
        {
        }

        public void Close()
        {
        }

        public string Name
        {
            get { return "InstantMessageModule"; }
        }

        public bool IsSharedModule
        {
            get { return true; }
        }

        #endregion

        private void OnNewClient(IClientAPI client)
        {
            client.OnInstantMessage += OnInstantMessage;
        }

        private void OnInstantMessage(IClientAPI client, LLUUID fromAgentID,
                                      LLUUID fromAgentSession, LLUUID toAgentID,
                                      LLUUID imSessionID, uint timestamp, string fromAgentName,
                                      string message, byte dialog, bool fromGroup, byte offline,
                                      uint ParentEstateID, LLVector3 Position, LLUUID RegionID,
                                      byte[] binaryBucket)
        {
            bool dialogHandledElsewhere
                = ((dialog == 38) || (dialog == 39) || (dialog == 40)
                   || dialog == (byte) InstantMessageDialog.InventoryOffered
                   || dialog == (byte) InstantMessageDialog.InventoryAccepted
                   || dialog == (byte) InstantMessageDialog.InventoryDeclined);

            // IM dialogs need to be pre-processed and have their sessionID filled by the server
            // so the sim can match the transaction on the return packet.

            // Don't send a Friend Dialog IM with a LLUUID.Zero session.
            if (!(dialogHandledElsewhere && imSessionID == LLUUID.Zero))
            {
                // Try root avatar only first
                foreach (Scene scene in m_scenes)
                {
                    if (scene.Entities.ContainsKey(toAgentID) && scene.Entities[toAgentID] is ScenePresence)
                    {
                        // Local message
                        ScenePresence user = (ScenePresence) scene.Entities[toAgentID];
                        if (!user.IsChildAgent)
                        {
                            user.ControllingClient.SendInstantMessage(fromAgentID, fromAgentSession, message,
                                                                      toAgentID, imSessionID, fromAgentName, dialog,
                                                                      timestamp);
                            // Message sent
                            return;
                        }
                    }
                }

                // try child avatar second
                foreach (Scene scene in m_scenes)
                {
                    if (scene.Entities.ContainsKey(toAgentID) && scene.Entities[toAgentID] is ScenePresence)
                    {
                        // Local message
                        ScenePresence user = (ScenePresence) scene.Entities[toAgentID];

                        user.ControllingClient.SendInstantMessage(fromAgentID, fromAgentSession, message,
                                                                  toAgentID, imSessionID, fromAgentName, dialog,
                                                                  timestamp);
                        // Message sent
                        return;
                    }
                }
            }


            // Still here, try send via Grid
            // TODO
        }

        // Trusty OSG1 called method.  This method also gets called from the FriendsModule
        // Turns out the sim has to send an instant message to the user to get it to show an accepted friend.

        private void OnGridInstantMessage(GridInstantMessage msg)
        {
            // Trigger the above event handler
            OnInstantMessage(null, new LLUUID(msg.fromAgentID), new LLUUID(msg.fromAgentSession),
                             new LLUUID(msg.toAgentID), new LLUUID(msg.imSessionID), msg.timestamp, msg.fromAgentName,
                             msg.message, msg.dialog, msg.fromGroup, msg.offline, msg.ParentEstateID,
                             new LLVector3(msg.Position.x, msg.Position.y, msg.Position.z), new LLUUID(msg.RegionID),
                             msg.binaryBucket);
        }
    }
}