OpenMetaverse.InventoryManager.Self_OnInstantMessage C# (CSharp) Method

        private void Self_OnInstantMessage(InstantMessage im, Simulator simulator)
        {
            // TODO: MainAvatar.InstantMessageDialog.GroupNotice can also be an inventory offer, should we
            // handle it here?

            if (OnObjectOffered != null &&
                (im.Dialog == InstantMessageDialog.InventoryOffered
                || im.Dialog == InstantMessageDialog.TaskInventoryOffered))
            {
                AssetType type = AssetType.Unknown;
                UUID objectID = UUID.Zero;
                bool fromTask = false;

                if (im.Dialog == InstantMessageDialog.InventoryOffered)
                {
                    if (im.BinaryBucket.Length == 17)
                    {
                        type = (AssetType)im.BinaryBucket[0];
                        objectID = new UUID(im.BinaryBucket, 1);
                        fromTask = false;
                    }
                    else
                    {
                        Logger.Log("Malformed inventory offer from agent", Helpers.LogLevel.Warning, _Client);
                        return;
                    }
                }
                else if (im.Dialog == InstantMessageDialog.TaskInventoryOffered)
                {
                    if (im.BinaryBucket.Length == 1)
                    {
                        type = (AssetType)im.BinaryBucket[0];
                        fromTask = true;
                    }
                    else
                    {
                        Logger.Log("Malformed inventory offer from object", Helpers.LogLevel.Warning, _Client);
                        return;
                    }
                }

                // Find the folder where this is going to go
                UUID destinationFolderID = FindFolderForType(type);

                // Fire the callback
                try
                {
                    ImprovedInstantMessagePacket imp = new ImprovedInstantMessagePacket();
                    imp.AgentData.AgentID = _Client.Self.AgentID;
                    imp.AgentData.SessionID = _Client.Self.SessionID;
                    imp.MessageBlock.FromGroup = false;
                    imp.MessageBlock.ToAgentID = im.FromAgentID;
                    imp.MessageBlock.Offline = 0;
                    imp.MessageBlock.ID = im.IMSessionID;
                    imp.MessageBlock.Timestamp = 0;
                    imp.MessageBlock.FromAgentName = Utils.StringToBytes(_Client.Self.Name);
                    imp.MessageBlock.Message = new byte[0];
                    imp.MessageBlock.ParentEstateID = 0;
                    imp.MessageBlock.RegionID = UUID.Zero;
                    imp.MessageBlock.Position = _Client.Self.SimPosition;

                    if (OnObjectOffered(im, type, objectID, fromTask))
                    {
                        // Accept the inventory offer
                        switch (im.Dialog)
                        {
                            case InstantMessageDialog.InventoryOffered:
                                imp.MessageBlock.Dialog = (byte)InstantMessageDialog.InventoryAccepted;
                                break;
                            case InstantMessageDialog.TaskInventoryOffered:
                                imp.MessageBlock.Dialog = (byte)InstantMessageDialog.TaskInventoryAccepted;
                                break;
                            case InstantMessageDialog.GroupNotice:
                                imp.MessageBlock.Dialog = (byte)InstantMessageDialog.GroupNoticeInventoryAccepted;
                                break;
                        }

                        imp.MessageBlock.BinaryBucket = destinationFolderID.GetBytes();
                    }
                    else
                    {
                        // Decline the inventory offer
                        switch (im.Dialog)
                        {
                            case InstantMessageDialog.InventoryOffered:
                                imp.MessageBlock.Dialog = (byte)InstantMessageDialog.InventoryDeclined;
                                break;
                            case InstantMessageDialog.TaskInventoryOffered:
                                imp.MessageBlock.Dialog = (byte)InstantMessageDialog.TaskInventoryDeclined;
                                break;
                            case InstantMessageDialog.GroupNotice:
                                imp.MessageBlock.Dialog = (byte)InstantMessageDialog.GroupNoticeInventoryDeclined;
                                break;
                        }

                        imp.MessageBlock.BinaryBucket = new byte[0];
                    }

                    _Client.Network.SendPacket(imp, simulator);
                }
                catch (Exception e)
                {
                    Logger.Log(e.Message, Helpers.LogLevel.Error, _Client, e);
                }
            }
        }