opensim – Rev 1
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/*
* 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);
}
public void DeleteMessages(UUID userID)
{
m_OfflineIMService.DeleteMessages(userID);
}
#endregion
}
}