From 87822c5d958f4ea10269d6eb646a6288681d4718 Mon Sep 17 00:00:00 2001
From: Melanie Thielker <melanie@t-data.com>
Date: Tue, 17 Mar 2009 23:52:30 +0000
Subject: [PATCH] Add an event to process undelivered IMs

---
 .../Avatar/InstantMessage/MessageTransferModule.cs | 14 ++++++++++++++
 .../Framework/Interfaces/IMessageTransferModule.cs |  3 +++
 2 files changed, 17 insertions(+)

diff --git a/OpenSim/Region/CoreModules/Avatar/InstantMessage/MessageTransferModule.cs b/OpenSim/Region/CoreModules/Avatar/InstantMessage/MessageTransferModule.cs
index 94a856b84d..f67bb0b304 100644
--- a/OpenSim/Region/CoreModules/Avatar/InstantMessage/MessageTransferModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/InstantMessage/MessageTransferModule.cs
@@ -48,6 +48,8 @@ namespace OpenSim.Region.CoreModules.Avatar.InstantMessage
         protected List<Scene> m_Scenes = new List<Scene>();
         protected Dictionary<UUID, ulong> m_UserRegionMap = new Dictionary<UUID, ulong>();
 
+        public event UndeliveredMessage OnUndeliveredMessage;
+
         public virtual void Initialise(Scene scene, IConfigSource config)
         {
             IConfig cnf = config.Configs["Messaging"];
@@ -165,6 +167,18 @@ namespace OpenSim.Region.CoreModules.Avatar.InstantMessage
                 return;
             }
 
+            UndeliveredMessage handlerUndeliveredMessage = OnUndeliveredMessage;
+
+            // If this event has handlers, then the IM will be considered
+            // delivered. This will suppress the error message.
+            //
+            if (handlerUndeliveredMessage != null)
+            {
+                handlerUndeliveredMessage(im);
+                result(true);
+                return;
+            }
+
             //m_log.DebugFormat("[INSTANT MESSAGE]: Undeliverable");
             result(false);
             return;
diff --git a/OpenSim/Region/Framework/Interfaces/IMessageTransferModule.cs b/OpenSim/Region/Framework/Interfaces/IMessageTransferModule.cs
index 40c224d4d0..86dc236965 100644
--- a/OpenSim/Region/Framework/Interfaces/IMessageTransferModule.cs
+++ b/OpenSim/Region/Framework/Interfaces/IMessageTransferModule.cs
@@ -30,9 +30,12 @@ using OpenSim.Framework;
 namespace OpenSim.Region.Framework.Interfaces
 {
     public delegate void MessageResultNotification(bool success);
+    public delegate void UndeliveredMessage(GridInstantMessage im);
    
     public interface IMessageTransferModule
     {
+        event UndeliveredMessage OnUndeliveredMessage;
+
         void SendInstantMessage(GridInstantMessage im, MessageResultNotification result);
     }
 }