Megapatch. Completely remove the multiparameter IM methods. Remove the insecure

fromAgentSession field.

11 files changed, 134 insertions, 170 deletions

diff --git a/OpenSim/Framework/GridInstantMessage.cs b/OpenSim/Framework/GridInstantMessage.cs
index 9cecf42..64eec22 100644
--- a/OpenSim/Framework/GridInstantMessage.cs
+++ b/OpenSim/Framework/GridInstantMessage.cs
@@ -35,7 +35,6 @@ namespace OpenSim.Framework
     {
         public Guid fromAgentID;
         public string fromAgentName;
-        public Guid fromAgentSession;
         public Guid toAgentID;
         public byte dialog;
         public bool fromGroup;
@@ -56,14 +55,13 @@ namespace OpenSim.Framework
         }
 
         public GridInstantMessage(IScene scene, UUID _fromAgentID,
-                string _fromAgentName, UUID _fromAgentSession, UUID _toAgentID,
+                string _fromAgentName, UUID _toAgentID,
                 byte _dialog, bool _fromGroup, string _message,
                 UUID _imSessionID, bool _offline, Vector3 _position,
                 byte[] _binaryBucket)
         {
             fromAgentID = _fromAgentID.Guid;
             fromAgentName = _fromAgentName;
-            fromAgentSession = _fromAgentSession.Guid;
             toAgentID = _toAgentID.Guid;
             dialog = _dialog;
             fromGroup = _fromGroup;
@@ -88,7 +86,7 @@ namespace OpenSim.Framework
                 string _fromAgentName, UUID _toAgentID, byte _dialog,
                 string _message, bool _offline,
                 Vector3 _position) : this(scene, _fromAgentID, _fromAgentName,
-                UUID.Zero, _toAgentID, _dialog, false, _message,
+                _toAgentID, _dialog, false, _message,
                 _fromAgentID ^ _toAgentID, _offline, _position, new byte[0])
         {
         }
diff --git a/OpenSim/Framework/IClientAPI.cs b/OpenSim/Framework/IClientAPI.cs
index ff2ca25..add177d 100644
--- a/OpenSim/Framework/IClientAPI.cs
+++ b/OpenSim/Framework/IClientAPI.cs
@@ -46,12 +46,7 @@ namespace OpenSim.Framework
 
     public delegate void AvatarNowWearing(Object sender, AvatarWearingArgs e);
 
-    public delegate void ImprovedInstantMessage(IClientAPI remoteclient,
-                                                UUID fromAgentID, UUID fromAgentSession, UUID toAgentID,
-                                                UUID imSessionID, uint timestamp,
-                                                string fromAgentName, string message, byte dialog, bool fromGroup,
-                                                byte offline, uint ParentEstateID,
-                                                Vector3 Position, UUID RegionID, byte[] binaryBucket);
+    public delegate void ImprovedInstantMessage(IClientAPI remoteclient, GridInstantMessage im);
 
     // This shouldn't be cut down...
     // especially if we're ever going to implement groups, presence, estate message dialogs...
diff --git a/OpenSim/Region/ClientStack/LindenUDP/LLClientView.cs b/OpenSim/Region/ClientStack/LindenUDP/LLClientView.cs
index 3aa3fea..3933cf7 100644
--- a/OpenSim/Region/ClientStack/LindenUDP/LLClientView.cs
+++ b/OpenSim/Region/ClientStack/LindenUDP/LLClientView.cs
@@ -4030,13 +4030,19 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
                     if (handlerInstantMessage != null)
                     {
-                        handlerInstantMessage(this, msgpack.AgentData.AgentID, msgpack.AgentData.SessionID,
-                                              msgpack.MessageBlock.ToAgentID, msgpack.MessageBlock.ID,
-                                              msgpack.MessageBlock.Timestamp, IMfromName, IMmessage,
-                                              msgpack.MessageBlock.Dialog, msgpack.MessageBlock.FromGroup,
-                                              msgpack.MessageBlock.Offline, msgpack.MessageBlock.ParentEstateID,
-                                              msgpack.MessageBlock.Position, msgpack.MessageBlock.RegionID,
-                                              msgpack.MessageBlock.BinaryBucket);
+                        GridInstantMessage im = new GridInstantMessage(Scene,
+                                msgpack.AgentData.AgentID,
+                                IMfromName,
+                                msgpack.MessageBlock.ToAgentID,
+                                msgpack.MessageBlock.Dialog,
+                                msgpack.MessageBlock.FromGroup,
+                                IMmessage,
+                                msgpack.MessageBlock.ID,
+                                msgpack.MessageBlock.Offline != 0 ? true : false,
+                                msgpack.MessageBlock.Position,
+                                msgpack.MessageBlock.BinaryBucket);
+
+                        handlerInstantMessage(this, im);
                     }
                     break;
 
diff --git a/OpenSim/Region/Environment/Modules/Avatar/Friends/FriendsModule.cs b/OpenSim/Region/Environment/Modules/Avatar/Friends/FriendsModule.cs
index 72c64ad..f07cd4c 100644
--- a/OpenSim/Region/Environment/Modules/Avatar/Friends/FriendsModule.cs
+++ b/OpenSim/Region/Environment/Modules/Avatar/Friends/FriendsModule.cs
@@ -263,7 +263,7 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Friends
             // to a user to 'add a friend' without causing dialog box spam
 
             // Subscribe to instant messages
-            client.OnInstantMessage += OnInstantMessage;
+//            client.OnInstantMessage += OnInstantMessage;
 
             // Friend list management
             client.OnApproveFriendRequest += OnApproveFriendRequest;
@@ -370,7 +370,7 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Friends
         #region FriendRequestHandling
 
         private void OnInstantMessage(IClientAPI client, UUID fromAgentID,
-                                      UUID fromAgentSession, UUID toAgentID,
+                                      UUID toAgentID,
                                       UUID imSessionID, uint timestamp, string fromAgentName,
                                       string message, byte dialog, bool fromGroup, byte offline,
                                       uint ParentEstateID, Vector3 Position, UUID RegionID,
@@ -393,86 +393,65 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Friends
                 // some properties are misused here:
                 // fromAgentName is the *destination* name (the friend we offer friendship to)
 
-                if (fromAgentSession != UUID.Zero)
-                {
-                    // (1)
-                    // send the friendship-offer to the target
-                    m_log.InfoFormat("[FRIEND]: Offer(38) - From: {0}, FromName: {1} To: {2}, Session: {3}, Message: {4}, Offline {5}",
-                               fromAgentID, fromAgentName, toAgentID, imSessionID, message, offline);
-
-                    UUID transactionID = UUID.Random();
-
-                    // 1.20 protocol sends an UUID in the message field, instead of the friendship offer text.
-                    // For interoperability, we have to clear that
-                    if (Util.isUUID(message)) message = "";
-
-                    GridInstantMessage msg = new GridInstantMessage();
-                    msg.fromAgentID = fromAgentID.Guid;
-                    msg.fromAgentSession = UUID.Zero.Guid; // server IMs don't have a session
-                    msg.toAgentID = toAgentID.Guid;
-                    msg.imSessionID = transactionID.Guid; // Start new transaction
-                    m_log.DebugFormat("[FRIEND]: new transactionID: {0}", msg.imSessionID);
-                    msg.timestamp = timestamp;
-                    if (client != null)
-                    {
-                        msg.fromAgentName = client.Name; // fromAgentName;
-                    }
-                    else
-                    {
-                        msg.fromAgentName = "(hippos)"; // Added for posterity.  This means that we can't figure out who sent it
-                    }
-                    msg.message = message;
-                    msg.dialog = dialog;
-                    msg.fromGroup = fromGroup;
-                    msg.offline = offline;
-                    msg.ParentEstateID = ParentEstateID;
-                    msg.Position = Position;
-                    msg.RegionID = RegionID.Guid;
-                    msg.binaryBucket = binaryBucket;
-
-                    m_log.DebugFormat("[FRIEND]: storing transactionID {0} on sender side", transactionID);
-                    lock (m_pendingFriendRequests)
-                    {
-                        m_pendingFriendRequests.Add(transactionID, new Transaction(fromAgentID, fromAgentName));
-                        outPending();
-                    }
+                // (1)
+                // send the friendship-offer to the target
+                m_log.InfoFormat("[FRIEND]: Offer(38) - From: {0}, FromName: {1} To: {2}, Session: {3}, Message: {4}, Offline {5}",
+                           fromAgentID, fromAgentName, toAgentID, imSessionID, message, offline);
 
-                    // we don't want to get that new IM into here if we aren't local, as only on the destination
-                    // should receive it. If we *are* local, *we* are the destination, so we have to receive it.
-                    // As grid-IMs are routed to all modules (in contrast to local IMs), we have to decide here.
+                UUID transactionID = UUID.Random();
 
-                    // We don't really care which local scene we pipe it through.
-                    if (m_TransferModule != null)
-                    {
-                        m_TransferModule.SendInstantMessage(msg,
-                            delegate(bool success) {}
-                        );
-                    }
+                // 1.20 protocol sends an UUID in the message field, instead of the friendship offer text.
+                // For interoperability, we have to clear that
+                if (Util.isUUID(message)) message = "";
+
+                GridInstantMessage msg = new GridInstantMessage();
+                msg.fromAgentID = fromAgentID.Guid;
+                msg.toAgentID = toAgentID.Guid;
+                msg.imSessionID = transactionID.Guid; // Start new transaction
+                m_log.DebugFormat("[FRIEND]: new transactionID: {0}", msg.imSessionID);
+                msg.timestamp = timestamp;
+                if (client != null)
+                {
+                    msg.fromAgentName = client.Name; // fromAgentName;
                 }
                 else
                 {
-                    // (2)
-                    // we are on the receiving end here; just add the transactionID to the stored transactions for later lookup
-                    m_log.DebugFormat("[FRIEND]: storing transactionID {0} on receiver side", imSessionID);
-                    lock (m_pendingFriendRequests)
-                    {
-                        // if both are on the same region-server, the transaction is stored already, but we have to update the name
-                        if (m_pendingFriendRequests.ContainsKey(imSessionID))
-                        {
-                            m_pendingFriendRequests[imSessionID].agentName = fromAgentName;
-                            m_pendingFriendRequests[imSessionID].count++;
-                        }
-                        else m_pendingFriendRequests.Add(imSessionID, new Transaction(fromAgentID, fromAgentName));
-                        outPending();
-                    }
+                    msg.fromAgentName = "(hippos)"; // Added for posterity.  This means that we can't figure out who sent it
+                }
+                msg.message = message;
+                msg.dialog = dialog;
+                msg.fromGroup = fromGroup;
+                msg.offline = offline;
+                msg.ParentEstateID = ParentEstateID;
+                msg.Position = Position;
+                msg.RegionID = RegionID.Guid;
+                msg.binaryBucket = binaryBucket;
+
+                m_log.DebugFormat("[FRIEND]: storing transactionID {0} on sender side", transactionID);
+                lock (m_pendingFriendRequests)
+                {
+                    m_pendingFriendRequests.Add(transactionID, new Transaction(fromAgentID, fromAgentName));
+                    outPending();
+                }
+
+                // we don't want to get that new IM into here if we aren't local, as only on the destination
+                // should receive it. If we *are* local, *we* are the destination, so we have to receive it.
+                // As grid-IMs are routed to all modules (in contrast to local IMs), we have to decide here.
+
+                // We don't really care which local scene we pipe it through.
+                if (m_TransferModule != null)
+                {
+                    m_TransferModule.SendInstantMessage(msg,
+                        delegate(bool success) {}
+                    );
                 }
             }
             else if (dialog == (byte)InstantMessageDialog.FriendshipAccepted) // 39
             {
                 // accepting the friendship offer causes a type 39 IM being sent to the (possibly remote) initiator
                 // toAgentID is initiator, fromAgentID is new friend (which just approved)
-                m_log.DebugFormat("[FRIEND]: 39 - from client {0}, agentSession {1}, agent {2} {3}, imsession {4} to {5}: {6} (dialog {7})",
-                  client != null ? client.AgentId.ToString() : "<null>", fromAgentSession,
+                m_log.DebugFormat("[FRIEND]: 39 - from client {0}, agent {1} {2}, imsession {3} to {4}: {5} (dialog {6})",
+                  client != null ? client.AgentId.ToString() : "<null>",
                   fromAgentID, fromAgentName, imSessionID, toAgentID, message, dialog);
                 lock (m_pendingFriendRequests)
                 {
@@ -520,8 +499,8 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Friends
             {
                 // declining the friendship offer causes a type 40 IM being sent to the (possibly remote) initiator
                 // toAgentID is initiator, fromAgentID declined friendship
-                m_log.DebugFormat("[FRIEND]: 40 - from client {0}, agentSession {1}, agent {2} {3}, imsession {4} to {5}: {6} (dialog {7})",
-                  client != null ? client.AgentId.ToString() : "<null>", fromAgentSession,
+                m_log.DebugFormat("[FRIEND]: 40 - from client {0}, agent {1} {2}, imsession {3} to {4}: {5} (dialog {6})",
+                  client != null ? client.AgentId.ToString() : "<null>",
                   fromAgentID, fromAgentName, imSessionID, toAgentID, message, dialog);
 
                 // not much to do, just clean up the transaction...
@@ -542,13 +521,42 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Friends
 
         private void OnGridInstantMessage(GridInstantMessage msg)
         {
+            if (msg.dialog == (byte)InstantMessageDialog.FriendshipOffered)
+            {
+                // we are on the receiving end here; just add the transactionID
+                // to the stored transactions for later lookup
+                //
+                m_log.DebugFormat("[FRIEND]: storing transactionID {0} on "+
+                        "receiver side", msg.imSessionID);
+
+                lock (m_pendingFriendRequests)
+                {
+                    // if both are on the same region-server, the transaction
+                    // is stored already, but we have to update the name
+                    //
+                    if (m_pendingFriendRequests.ContainsKey(
+                            new UUID(msg.imSessionID)))
+                    {
+                        m_pendingFriendRequests[new UUID(msg.imSessionID)].agentName =
+                                msg.fromAgentName;
+                        m_pendingFriendRequests[new UUID(msg.imSessionID)].count++;
+                    }
+                    else m_pendingFriendRequests.Add(new UUID(msg.imSessionID),
+                            new Transaction(new UUID(msg.fromAgentID),
+                            msg.fromAgentName));
+
+                    outPending();
+                }
+
+                return;
+            }
+
             // Just call the IM handler above
             // This event won't be raised unless we have that agent,
             // so we can depend on the above not trying to send
             // via grid again
             //
             OnInstantMessage(null, new UUID(msg.fromAgentID),
-                    new UUID(msg.fromAgentSession),
                     new UUID(msg.toAgentID), new UUID(msg.imSessionID),
                     msg.timestamp, msg.fromAgentName, msg.message,
                     msg.dialog, msg.fromGroup, msg.offline,
@@ -604,7 +612,6 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Friends
             msg.toAgentID = friendID.Guid;
             msg.fromAgentID = agentID.Guid;
             msg.fromAgentName = client.Name;
-            msg.fromAgentSession = UUID.Zero.Guid; // server IMs don't have a session
             msg.fromGroup = false;
             msg.imSessionID = transactionID.Guid;
             msg.message = agentID.Guid.ToString();
@@ -664,7 +671,6 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Friends
             msg.toAgentID = friendID.Guid;
             msg.fromAgentID = agentID.Guid;
             msg.fromAgentName = client.Name;
-            msg.fromAgentSession = UUID.Zero.Guid; // server IMs don't have a session
             msg.fromGroup = false;
             msg.imSessionID = transactionID.Guid;
             msg.message = agentID.Guid.ToString();
diff --git a/OpenSim/Region/Environment/Modules/Avatar/Groups/GroupsModule.cs b/OpenSim/Region/Environment/Modules/Avatar/Groups/GroupsModule.cs
index c291c16..eea8e40 100644
--- a/OpenSim/Region/Environment/Modules/Avatar/Groups/GroupsModule.cs
+++ b/OpenSim/Region/Environment/Modules/Avatar/Groups/GroupsModule.cs
@@ -178,27 +178,14 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Groups
                     ActiveGroupTitle);
         }
 
-        private void OnInstantMessage(IClientAPI client, UUID fromAgentID,
-                UUID fromAgentSession, UUID toAgentID,
-                UUID imSessionID, uint timestamp, string fromAgentName,
-                string message, byte dialog, bool fromGroup, byte offline,
-                uint ParentEstateID, Vector3 Position, UUID RegionID,
-                byte[] binaryBucket)
+        private void OnInstantMessage(IClientAPI client, GridInstantMessage im)
         {
         }
 
         private void OnGridInstantMessage(GridInstantMessage msg)
         {
             // Trigger the above event handler
-            OnInstantMessage(null, new UUID(msg.fromAgentID),
-                    new UUID(msg.fromAgentSession),
-                    new UUID(msg.toAgentID), new UUID(msg.imSessionID),
-                    msg.timestamp, msg.fromAgentName,
-                    msg.message, msg.dialog, msg.fromGroup, msg.offline,
-                    msg.ParentEstateID,
-                    new Vector3(msg.Position.X, msg.Position.Y, msg.Position.Z),
-                    new UUID(msg.RegionID),
-                    msg.binaryBucket);
+            OnInstantMessage(null, msg);
         }
 
         private void HandleUUIDGroupNameRequest(UUID id,IClientAPI remote_client)
diff --git a/OpenSim/Region/Environment/Modules/Avatar/InstantMessage/InstantMessageModule.cs b/OpenSim/Region/Environment/Modules/Avatar/InstantMessage/InstantMessageModule.cs
index cd8c82c..b106435 100644
--- a/OpenSim/Region/Environment/Modules/Avatar/InstantMessage/InstantMessageModule.cs
+++ b/OpenSim/Region/Environment/Modules/Avatar/InstantMessage/InstantMessageModule.cs
@@ -110,33 +110,7 @@ namespace OpenSim.Region.Environment.Modules.Avatar.InstantMessage
 
         #endregion
 
-        private void OnInstantMessage(IClientAPI client, UUID fromAgentID,
-                UUID fromAgentSession, UUID toAgentID,
-                UUID imSessionID, uint timestamp, string fromAgentName,
-                string message, byte dialog, bool fromGroup, byte offline,
-                uint ParentEstateID, Vector3 Position, UUID RegionID,
-                byte[] binaryBucket)
-        {
-            // This module handles exclusively private text IM from user
-            // to user. All others will be caught in other modules
-            //
-            if (   dialog != (byte)InstantMessageDialog.MessageFromAgent
-                && dialog != (byte)InstantMessageDialog.StartTyping
-                && dialog != (byte)InstantMessageDialog.StopTyping)
-            {
-                return;
-            }
-
-            GridInstantMessage im = new GridInstantMessage(client.Scene,
-                    fromAgentID, fromAgentName, fromAgentSession, toAgentID,
-                    dialog, fromGroup, message, imSessionID,
-                    offline != 0 ? true : false, Position,
-                    binaryBucket);
-            
-            ProcessInstantMessage(client, im);
-        }
-
-        private void ProcessInstantMessage(IClientAPI client, GridInstantMessage im)
+        public void OnInstantMessage(IClientAPI client, GridInstantMessage im)
         {
             byte dialog = im.dialog;
 
@@ -183,7 +157,7 @@ namespace OpenSim.Region.Environment.Modules.Avatar.InstantMessage
             // so we can depend on the above not trying to send
             // via grid again
             //
-            ProcessInstantMessage(null, msg);
+            OnInstantMessage(null, msg);
         }
     }
 }
diff --git a/OpenSim/Region/Environment/Modules/Avatar/InstantMessage/MessageTransferModule.cs b/OpenSim/Region/Environment/Modules/Avatar/InstantMessage/MessageTransferModule.cs
index 0dc29a1..67346ae 100644
--- a/OpenSim/Region/Environment/Modules/Avatar/InstantMessage/MessageTransferModule.cs
+++ b/OpenSim/Region/Environment/Modules/Avatar/InstantMessage/MessageTransferModule.cs
@@ -185,7 +185,6 @@ namespace OpenSim.Region.Environment.Modules.Avatar.InstantMessage
             bool successful = false;
             // various rational defaults
             UUID fromAgentID = UUID.Zero;
-            UUID fromAgentSession = UUID.Zero;
             UUID toAgentID = UUID.Zero;
             UUID imSessionID = UUID.Zero;
             uint timestamp = 0;
@@ -207,7 +206,7 @@ namespace OpenSim.Region.Environment.Modules.Avatar.InstantMessage
 
             Hashtable requestData = (Hashtable)request.Params[0];
             // Check if it's got all the data
-            if (requestData.ContainsKey("from_agent_id") && requestData.ContainsKey("from_agent_session")
+            if (requestData.ContainsKey("from_agent_id")
                     && requestData.ContainsKey("to_agent_id") && requestData.ContainsKey("im_session_id")
                     && requestData.ContainsKey("timestamp") && requestData.ContainsKey("from_agent_name")
                     && requestData.ContainsKey("message") && requestData.ContainsKey("dialog")
@@ -219,7 +218,6 @@ namespace OpenSim.Region.Environment.Modules.Avatar.InstantMessage
             {
                 // Do the easy way of validating the UUIDs
                 UUID.TryParse((string)requestData["from_agent_id"], out fromAgentID);
-                UUID.TryParse((string)requestData["from_agent_session"], out fromAgentSession);
                 UUID.TryParse((string)requestData["to_agent_id"], out toAgentID);
                 UUID.TryParse((string)requestData["im_session_id"], out imSessionID);
                 UUID.TryParse((string)requestData["region_id"], out RegionID);
@@ -337,7 +335,6 @@ namespace OpenSim.Region.Environment.Modules.Avatar.InstantMessage
                 GridInstantMessage gim = new GridInstantMessage();
                 gim.fromAgentID = fromAgentID.Guid;
                 gim.fromAgentName = fromAgentName;
-                gim.fromAgentSession = fromAgentSession.Guid;
                 gim.fromGroup = fromGroup;
                 gim.imSessionID = imSessionID.Guid;
                 gim.RegionID = RegionID.Guid;
@@ -598,7 +595,8 @@ namespace OpenSim.Region.Environment.Modules.Avatar.InstantMessage
         {
             Hashtable gim = new Hashtable();
             gim["from_agent_id"] = msg.fromAgentID.ToString();
-            gim["from_agent_session"] = msg.fromAgentSession.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();
diff --git a/OpenSim/Region/Environment/Modules/Avatar/Inventory/Transfer/InventoryTransferModule.cs b/OpenSim/Region/Environment/Modules/Avatar/Inventory/Transfer/InventoryTransferModule.cs
index 71cc726..f4707de 100644
--- a/OpenSim/Region/Environment/Modules/Avatar/Inventory/Transfer/InventoryTransferModule.cs
+++ b/OpenSim/Region/Environment/Modules/Avatar/Inventory/Transfer/InventoryTransferModule.cs
@@ -117,38 +117,34 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Inventory.Transfer
             return null;
         }
 
-        private void OnInstantMessage(IClientAPI client, UUID fromAgentID,
-                  UUID fromAgentSession, UUID toAgentID,
-                  UUID imSessionID, uint timestamp, string fromAgentName,
-                  string message, byte dialog, bool fromGroup, byte offline,
-                  uint ParentEstateID, Vector3 Position, UUID RegionID,
-                  byte[] binaryBucket)
+        private void OnInstantMessage(IClientAPI client, GridInstantMessage im)
         {
             Scene scene = FindClientScene(client.AgentId);
 
             if (scene == null) // Something seriously wrong here.
                 return;
 
-            if (dialog == (byte) InstantMessageDialog.InventoryOffered)
+            if (im.dialog == (byte) InstantMessageDialog.InventoryOffered)
             {
                 ScenePresence user =
-                        scene.GetScenePresence(toAgentID);
+                        scene.GetScenePresence(new UUID(im.toAgentID));
 
                 // First byte of the array is probably the item type
                 // Next 16 bytes are the UUID
 
-                UUID itemID = new UUID(binaryBucket, 1);
+                UUID itemID = new UUID(im.binaryBucket, 1);
 
                 m_log.DebugFormat("[AGENT INVENTORY]: Inserting item {0} "+
                         "into agent {1}'s inventory",
-                        itemID, toAgentID);
+                        itemID, new UUID(im.toAgentID));
 
-                InventoryItemBase itemCopy = scene.GiveInventoryItem(toAgentID,
+                InventoryItemBase itemCopy = scene.GiveInventoryItem(
+                        new UUID(im.toAgentID),
                         client.AgentId, itemID);
 
                 byte[] itemCopyID = itemCopy.ID.GetBytes();
 
-                Array.Copy(itemCopyID, 0, binaryBucket, 1, 16);
+                Array.Copy(itemCopyID, 0, im.binaryBucket, 1, 16);
 
                 // Send the IM to the recipient. The item is already
                 // in their inventory, so it will not be lost if
@@ -164,9 +160,10 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Inventory.Transfer
                     // same ID back on the reply so we know what to act on
                     //
                     user.ControllingClient.SendInstantMessage(
-                            fromAgentID, message, toAgentID, fromAgentName,
-                            dialog, timestamp, itemCopy.ID, false,
-                            binaryBucket);
+                            new UUID(im.fromAgentID), im.message,
+                            new UUID(im.toAgentID),
+                            im.fromAgentName, im.dialog, im.timestamp,
+                            itemCopy.ID, false, im.binaryBucket);
 
                     return;
                 }
@@ -177,15 +174,17 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Inventory.Transfer
                     // TODO: Implement grid sending
                 }
             }
-            else if (dialog == (byte) InstantMessageDialog.InventoryAccepted)
+            else if (im.dialog == (byte) InstantMessageDialog.InventoryAccepted)
             {
-                ScenePresence user = scene.GetScenePresence(toAgentID);
+                ScenePresence user = scene.GetScenePresence(new UUID(im.toAgentID));
 
                 if (user != null) // Local
                 {
                     user.ControllingClient.SendInstantMessage(
-                            fromAgentID, message, toAgentID, fromAgentName,
-                            dialog, timestamp, UUID.Zero, false, binaryBucket);
+                            new UUID(im.fromAgentID), im.message,
+                            new UUID(im.toAgentID),
+                            im.fromAgentName, im.dialog, im.timestamp,
+                            UUID.Zero, false, im.binaryBucket);
                 }
                 else
                 {
@@ -194,9 +193,9 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Inventory.Transfer
                     // TODO: Implement sending via grid
                 }
             }
-            else if (dialog == (byte) InstantMessageDialog.InventoryDeclined)
+            else if (im.dialog == (byte) InstantMessageDialog.InventoryDeclined)
             {
-                UUID itemID = imSessionID; // The item, back from it's trip
+                UUID itemID = new UUID(im.imSessionID); // The item, back from it's trip
 
                 // Here, the recipient is local and we can assume that the
                 // inventory is loaded. Courtesy of the above bulk update,
@@ -235,13 +234,15 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Inventory.Transfer
                     }
                 }
 
-                ScenePresence user = scene.GetScenePresence(toAgentID);
+                ScenePresence user = scene.GetScenePresence(new UUID(im.toAgentID));
 
                 if (user != null) // Local
                 {
                     user.ControllingClient.SendInstantMessage(
-                            fromAgentID, message, toAgentID, fromAgentName,
-                            dialog, timestamp, UUID.Zero, false, binaryBucket);
+                            new UUID(im.fromAgentID), im.message,
+                            new UUID(im.toAgentID),
+                            im.fromAgentName, im.dialog, im.timestamp,
+                            UUID.Zero, false, im.binaryBucket);
                 }
                 else
                 {
diff --git a/OpenSim/Region/Environment/Modules/World/NPC/NPCAvatar.cs b/OpenSim/Region/Environment/Modules/World/NPC/NPCAvatar.cs
index de0a41a..735a521 100644
--- a/OpenSim/Region/Environment/Modules/World/NPC/NPCAvatar.cs
+++ b/OpenSim/Region/Environment/Modules/World/NPC/NPCAvatar.cs
@@ -84,9 +84,10 @@ namespace OpenSim.Region.Environment.Modules.World.NPC
 
         public void InstantMessage(UUID target, string message)
         {
-            OnInstantMessage(this, m_uuid, SessionId, target, UUID.Combine(m_uuid, target),
-                             (uint) Util.UnixTimeSinceEpoch(), Name, message, 0, false, 0, 0,
-                             Position, m_scene.RegionInfo.RegionID, new byte[0]);
+            OnInstantMessage(this, new GridInstantMessage(m_scene,
+                    m_uuid, m_firstname + " " + m_lastname,
+                    target, 0, false, message,
+                    UUID.Zero, false, Position, new byte[0]));
         }
 
         public void SendAgentOffline(UUID[] agentIDs)
diff --git a/OpenSim/Region/Environment/Scenes/Scene.cs b/OpenSim/Region/Environment/Scenes/Scene.cs
index e19857c..0416e3a 100644
--- a/OpenSim/Region/Environment/Scenes/Scene.cs
+++ b/OpenSim/Region/Environment/Scenes/Scene.cs
@@ -977,7 +977,6 @@ namespace OpenSim.Region.Environment.Scenes
 
                 GridInstantMessage msg = new GridInstantMessage();
                 msg.fromAgentID = new Guid(UUID.Zero.ToString()); // From server
-                msg.fromAgentSession = new Guid(transaction.ToString());
                 msg.toAgentID = new Guid(ret.Key.ToString());
                 msg.imSessionID = new Guid(transaction.ToString());
                 msg.timestamp = (uint)Util.UnixTimeSinceEpoch();
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
index 8eff58e..2408a5e 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
@@ -2623,7 +2623,6 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
             GridInstantMessage msg = new GridInstantMessage();
             msg.fromAgentID = new Guid(m_host.UUID.ToString()); // fromAgentID.Guid;
-            msg.fromAgentSession = new Guid(friendTransactionID.ToString());// fromAgentSession.UUID;
             msg.toAgentID = new Guid(user); // toAgentID.Guid;
             msg.imSessionID = new Guid(friendTransactionID.ToString()); // This is the item we're mucking with here
 //            Console.WriteLine("[Scripting IM]: From:" + msg.fromAgentID.ToString() + " To: " + msg.toAgentID.ToString() + " Session:" + msg.imSessionID.ToString() + " Message:" + message);