1 files changed, 267 insertions, 0 deletions

diff --git a/OpenSim/Addons/OfflineIM/OfflineIMRegionModule.cs b/OpenSim/Addons/OfflineIM/OfflineIMRegionModule.cs
new file mode 100644
index 0000000..050ebd2
--- /dev/null
+++ b/OpenSim/Addons/OfflineIM/OfflineIMRegionModule.cs
@@ -0,0 +1,267 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+using System;
+using System.Collections.Generic;
+using System.Reflection;
+using log4net;
+using Mono.Addins;
+using Nini.Config;
+using OpenMetaverse;
+using OpenSim.Framework;
+using OpenSim.Framework.Servers;
+using OpenSim.Framework.Client;
+using OpenSim.Region.Framework.Interfaces;
+using OpenSim.Region.Framework.Scenes;
+using OpenSim.Services.Interfaces;
+
+namespace OpenSim.OfflineIM
+{
+    [Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule", Id = "OfflineIMConnectorModule")]
+    public class OfflineIMRegionModule : ISharedRegionModule, IOfflineIMService
+    {
+        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
+        private bool m_Enabled = false;
+        private List<Scene> m_SceneList = new List<Scene>();
+        IMessageTransferModule m_TransferModule = null;
+        private bool m_ForwardOfflineGroupMessages = true;
+
+        private IOfflineIMService m_OfflineIMService;
+
+        public void Initialise(IConfigSource config)
+        {
+            IConfig cnf = config.Configs["Messaging"];
+            if (cnf == null)
+                return;
+            if (cnf != null && cnf.GetString("OfflineMessageModule", string.Empty) != Name)
+                return;
+
+            m_Enabled = true;
+
+            string serviceLocation = cnf.GetString("OfflineMessageURL", string.Empty);
+            if (serviceLocation == string.Empty)
+                m_OfflineIMService = new OfflineIMService(config);
+            else
+                m_OfflineIMService = new OfflineIMServiceRemoteConnector(serviceLocation);
+
+            m_ForwardOfflineGroupMessages = cnf.GetBoolean("ForwardOfflineGroupMessages", m_ForwardOfflineGroupMessages);
+            m_log.DebugFormat("[OfflineIM.V2]: Offline messages enabled by {0}", Name);
+        }
+
+        public void AddRegion(Scene scene)
+        {
+            if (!m_Enabled)
+                return;
+
+            scene.RegisterModuleInterface<IOfflineIMService>(this);
+            m_SceneList.Add(scene);
+            scene.EventManager.OnNewClient += OnNewClient;
+        }
+
+        public void RegionLoaded(Scene scene)
+        {
+            if (!m_Enabled)
+                return;
+
+            if (m_TransferModule == null)
+            {
+                m_TransferModule = scene.RequestModuleInterface<IMessageTransferModule>();
+                if (m_TransferModule == null)
+                {
+                    scene.EventManager.OnNewClient -= OnNewClient;
+
+                    m_SceneList.Clear();
+
+                    m_log.Error("[OfflineIM.V2]: No message transfer module is enabled. Disabling offline messages");
+                }
+                m_TransferModule.OnUndeliveredMessage += UndeliveredMessage;
+            }
+        }
+
+        public void RemoveRegion(Scene scene)
+        {
+            if (!m_Enabled)
+                return;
+
+            m_SceneList.Remove(scene);
+            scene.EventManager.OnNewClient -= OnNewClient;
+            m_TransferModule.OnUndeliveredMessage -= UndeliveredMessage;
+
+            scene.ForEachClient(delegate(IClientAPI client)
+            {
+                client.OnRetrieveInstantMessages -= RetrieveInstantMessages;
+                client.OnMuteListRequest -= OnMuteListRequest;
+            });
+        }
+
+        public void PostInitialise()
+        {
+        }
+
+        public string Name
+        {
+            get { return "Offline Message Module V2"; }
+        }
+
+        public Type ReplaceableInterface
+        {
+            get { return null; }
+        }
+
+        public void Close()
+        {
+            m_SceneList.Clear();
+        }
+
+        private Scene FindScene(UUID agentID)
+        {
+            foreach (Scene s in m_SceneList)
+            {
+                ScenePresence presence = s.GetScenePresence(agentID);
+                if (presence != null && !presence.IsChildAgent)
+                    return s;
+            }
+            return null;
+        }
+
+        private IClientAPI FindClient(UUID agentID)
+        {
+            foreach (Scene s in m_SceneList)
+            {
+                ScenePresence presence = s.GetScenePresence(agentID);
+                if (presence != null && !presence.IsChildAgent)
+                    return presence.ControllingClient;
+            }
+            return null;
+        }
+
+        private void OnNewClient(IClientAPI client)
+        {
+            client.OnRetrieveInstantMessages += RetrieveInstantMessages;
+            client.OnMuteListRequest += OnMuteListRequest;
+        }
+
+        private void RetrieveInstantMessages(IClientAPI client)
+        {
+            m_log.DebugFormat("[OfflineIM.V2]: Retrieving stored messages for {0}", client.AgentId);
+
+            List<GridInstantMessage> msglist = m_OfflineIMService.GetMessages(client.AgentId);
+
+            if (msglist == null)
+                m_log.DebugFormat("[OfflineIM.V2]: WARNING null message list.");
+
+            foreach (GridInstantMessage im in msglist)
+            {
+                if (im.dialog == (byte)InstantMessageDialog.InventoryOffered)
+                    // send it directly or else the item will be given twice
+                    client.SendInstantMessage(im);
+                else
+                {
+                    // Send through scene event manager so all modules get a chance
+                    // to look at this message before it gets delivered.
+                    //
+                    // Needed for proper state management for stored group
+                    // invitations
+                    //
+                    Scene s = FindScene(client.AgentId);
+                    if (s != null)
+                        s.EventManager.TriggerIncomingInstantMessage(im);
+                }
+            }
+        }
+
+        // Apparently this is needed in order for the viewer to request the IMs.
+        private void OnMuteListRequest(IClientAPI client, uint crc)
+        {
+            m_log.DebugFormat("[OfflineIM.V2] Got mute list request for crc {0}", crc);
+            string filename = "mutes" + client.AgentId.ToString();
+
+            IXfer xfer = client.Scene.RequestModuleInterface<IXfer>();
+            if (xfer != null)
+            {
+                xfer.AddNewFile(filename, new Byte[0]);
+                client.SendMuteListUpdate(filename);
+            }
+        }
+
+        private void UndeliveredMessage(GridInstantMessage im)
+        {
+            if (im.dialog != (byte)InstantMessageDialog.MessageFromObject &&
+                im.dialog != (byte)InstantMessageDialog.MessageFromAgent &&
+                im.dialog != (byte)InstantMessageDialog.GroupNotice &&
+                im.dialog != (byte)InstantMessageDialog.GroupInvitation &&
+                im.dialog != (byte)InstantMessageDialog.InventoryOffered)
+            {
+                return;
+            }
+
+            if (!m_ForwardOfflineGroupMessages)
+            {
+                if (im.dialog == (byte)InstantMessageDialog.GroupNotice ||
+                    im.dialog == (byte)InstantMessageDialog.GroupInvitation)
+                    return;
+            }
+
+            Scene scene = FindScene(new UUID(im.fromAgentID));
+            if (scene == null)
+                scene = m_SceneList[0];
+
+            string reason = string.Empty;
+            bool success = m_OfflineIMService.StoreMessage(im, out reason);
+
+            if (im.dialog == (byte)InstantMessageDialog.MessageFromAgent)
+            {
+                IClientAPI client = FindClient(new UUID(im.fromAgentID));
+                if (client == null)
+                    return;
+
+                client.SendInstantMessage(new GridInstantMessage(
+                        null, new UUID(im.toAgentID),
+                        "System", new UUID(im.fromAgentID),
+                        (byte)InstantMessageDialog.MessageFromAgent,
+                        "User is not logged in. " +
+                        (success ? "Message saved." : "Message not saved: " + reason),
+                        false, new Vector3()));
+            }
+        }
+
+        #region IOfflineIM
+
+        public List<GridInstantMessage> GetMessages(UUID principalID)
+        {
+            return m_OfflineIMService.GetMessages(principalID);
+        }
+
+        public bool StoreMessage(GridInstantMessage im, out string reason)
+        {
+            return m_OfflineIMService.StoreMessage(im, out reason);
+        }
+
+        #endregion
+    }
+}
+