Committing partial work on passing folders across instances. This may crash.

OpenSim/Framework/Communications/Cache/CachedUserInfo.cs

@@ -37,6 +37,7 @@ namespace OpenSim.Framework.Communications.Cache
     internal delegate void UpdateItemDelegate(InventoryItemBase itemInfo);
     internal delegate void DeleteItemDelegate(UUID itemID);
     internal delegate void QueryItemDelegate(UUID itemID);
+    internal delegate void QueryFolderDelegate(UUID folderID);
 
     internal delegate void CreateFolderDelegate(string folderName, UUID folderID, ushort folderType, UUID parentID);
     internal delegate void MoveFolderDelegate(UUID folderID, UUID parentID);
@@ -819,6 +820,56 @@ namespace OpenSim.Framework.Communications.Cache
             return false;
         }
 
+        public bool QueryFolder(InventoryFolderBase folder)
+        {
+            if (m_hasReceivedInventory)
+            {
+                InventoryFolderBase invFolder = RootFolder.FindFolder(folder.ID);
+
+                if (invFolder != null)
+                {
+                    // Folder is in local cache, just update client
+                    //
+                    return true;
+                }
+
+                InventoryFolderBase folderInfo = null;
+
+                if (m_commsManager.SecureInventoryService != null)
+                {
+                    folderInfo = m_commsManager.SecureInventoryService.QueryFolder(folder, m_session_id);
+                }
+                else
+                {
+                    folderInfo = m_commsManager.InventoryService.QueryFolder(folder);
+                }
+
+                if (folderInfo != null)
+                {
+                    InventoryFolderImpl createdFolder = RootFolder.CreateChildFolder(folderInfo.ID, folderInfo.Name, (ushort)folderInfo.Type);
+
+                    createdFolder.Version = folderInfo.Version;
+                    createdFolder.Owner = folderInfo.Owner;
+                    createdFolder.ParentID = folderInfo.ParentID;
+
+                    return true;
+                }
+
+                return false;
+            }
+            else
+            {
+                AddRequest(
+                    new InventoryRequest(
+                        Delegate.CreateDelegate(typeof(QueryFolderDelegate), this, "QueryFolder"),
+                        new object[] { folder.ID }));
+
+                return true;
+            }
+
+            return false;
+        }
+
     }
 
     /// <summary>

OpenSim/Framework/Communications/IInventoryServices.cs

@@ -112,6 +112,14 @@ namespace OpenSim.Framework.Communications
         /// <returns>true if the item was found in local cache</returns>
         InventoryItemBase QueryItem(InventoryItemBase item);
 
+        /// <summary>
+        /// Query the server for a folder that may have been added by
+        /// another region
+        /// </summary>
+        /// <param name="folder"></param>
+        /// <returns>true if the folder was found in local cache</returns>
+        InventoryFolderBase QueryFolder(InventoryFolderBase folder);
+
         /// <summary>
         /// Does the given user have an inventory structure?
         /// </summary>

OpenSim/Framework/Communications/ISecureInventoryService.cs

@@ -98,6 +98,8 @@ namespace OpenSim.Framework.Communications
 
         InventoryItemBase QueryItem(InventoryItemBase item, UUID session_id);
 
+        InventoryFolderBase QueryFolder(InventoryFolderBase item, UUID session_id);
+
         /// <summary>
         /// Does the given user have an inventory structure?
         /// </summary>

OpenSim/Framework/Communications/InventoryServiceBase.cs

@@ -292,6 +292,20 @@ namespace OpenSim.Framework.Communications
             return null;
         }
 
+        public virtual InventoryFolderBase QueryFolder(InventoryFolderBase item)
+        {
+            foreach (IInventoryDataPlugin plugin in m_plugins)
+            {
+                InventoryFolderBase result = plugin.queryInventoryFolder(item.ID);
+                if (result != null)
+                {
+                    return result;
+                }
+            }
+
+            return null;
+        }
+
         /// <summary>
         /// Purge a folder of all items items and subfolders.
         ///