thanks lulurun for a security patch that blocks unathorized access to the inventory server (see http://opensimulator.org/wiki/Security_vulnerability_brought_by_non-check_inventory_service)

OpenSim/Framework/Communications/Cache/CachedUserInfo.cs

@@ -87,6 +87,9 @@ namespace OpenSim.Framework.Communications.Cache
         private IDictionary<LLUUID, IList<InventoryFolderImpl>> pendingCategorizationFolders
             = new Dictionary<LLUUID, IList<InventoryFolderImpl>>();
 
+        private LLUUID m_session_id = LLUUID.Zero;
+        public LLUUID SessionID { get { return m_session_id; } }
+        
         /// <summary>
         /// Constructor
         /// </summary>
@@ -98,6 +101,13 @@ namespace OpenSim.Framework.Communications.Cache
             m_userProfile = userProfile;
         }
 
+        public CachedUserInfo(CommunicationsManager commsManager, UserProfileData userProfile, IClientAPI remoteClient)
+        {
+            m_commsManager = commsManager;
+            m_userProfile = userProfile;
+            m_session_id = remoteClient.SessionId;
+        }
+
         /// <summary>
         /// This allows a request to be added to be processed once we receive a user's inventory
         /// from the inventory service.  If we already have the inventory, the request
@@ -325,7 +335,7 @@ namespace OpenSim.Framework.Communications.Cache
                     createdBaseFolder.Type = createdFolder.Type;
                     createdBaseFolder.Version = createdFolder.Version;
 
-                    m_commsManager.InventoryService.AddFolder(createdBaseFolder);
+                    m_commsManager.SecureInventoryService.AddFolder(createdBaseFolder, m_session_id);
 
                     return true;
                 }
@@ -379,7 +389,7 @@ namespace OpenSim.Framework.Communications.Cache
                 baseFolder.Type = (short)type;
                 baseFolder.Version = RootFolder.Version;
 
-                m_commsManager.InventoryService.UpdateFolder(baseFolder);
+                m_commsManager.SecureInventoryService.UpdateFolder(baseFolder, m_session_id);
 
                 InventoryFolderImpl folder = RootFolder.FindFolder(folderID);
                 if (folder != null)
@@ -421,7 +431,7 @@ namespace OpenSim.Framework.Communications.Cache
                 baseFolder.ID = folderID;
                 baseFolder.ParentID = parentID;
 
-                m_commsManager.InventoryService.MoveFolder(baseFolder);
+                m_commsManager.SecureInventoryService.MoveFolder(baseFolder, m_session_id);
 
                 InventoryFolderImpl folder = RootFolder.FindFolder(folderID);
                 if (folder != null)
@@ -468,7 +478,7 @@ namespace OpenSim.Framework.Communications.Cache
                     purgedBaseFolder.Type = purgedFolder.Type;
                     purgedBaseFolder.Version = purgedFolder.Version;
 
-                    m_commsManager.InventoryService.PurgeFolder(purgedBaseFolder);
+                    m_commsManager.SecureInventoryService.PurgeFolder(purgedBaseFolder, m_session_id);
 
                     purgedFolder.Purge();
 
@@ -505,7 +515,7 @@ namespace OpenSim.Framework.Communications.Cache
                         item.Folder = RootFolder.ID;
                 }
                 ItemReceive(item);
-                m_commsManager.InventoryService.AddItem(item);
+                m_commsManager.SecureInventoryService.AddItem(item, m_session_id);
             }
             else
             {
@@ -525,7 +535,7 @@ namespace OpenSim.Framework.Communications.Cache
         {
             if (HasInventory)
             {
-                m_commsManager.InventoryService.UpdateItem(item);
+                m_commsManager.SecureInventoryService.UpdateItem(item, m_session_id);
             }
             else
             {
@@ -564,7 +574,7 @@ namespace OpenSim.Framework.Communications.Cache
 
                 if (RootFolder.DeleteItem(item.ID))
                 {
-                    return m_commsManager.InventoryService.DeleteItem(item);
+                    return m_commsManager.SecureInventoryService.DeleteItem(item, m_session_id);
                 }
             }
             else

OpenSim/Framework/Communications/Cache/UserProfileCacheService.cs

@@ -59,6 +59,33 @@ namespace OpenSim.Framework.Communications.Cache
             m_commsManager = commsManager;
         }
 
+        /// <summary>
+        /// A new user has moved into a region in this instance so retrieve their profile from the user service.
+        /// </summary>
+        /// <param name="userID"></param>
+        public void AddNewUser(IClientAPI remoteClient)
+        {
+            // Potential fix - Multithreading issue.
+            lock (m_userProfiles)
+            {
+                if (!m_userProfiles.ContainsKey(remoteClient.AgentId))
+                {
+                    UserProfileData userProfile = m_commsManager.UserService.GetUserProfile(remoteClient.AgentId);
+                    CachedUserInfo userInfo = new CachedUserInfo(m_commsManager, userProfile, remoteClient);
+
+                    if (userInfo.UserProfile != null)
+                    {
+                        // The inventory for the user will be populated when they actually enter the scene
+                        m_userProfiles.Add(remoteClient.AgentId, userInfo);
+                    }
+                    else
+                    {
+                        m_log.ErrorFormat("[USER CACHE]: User profile for user {0} not found.", remoteClient.AgentId);
+                    }
+                }
+            }
+        }
+
         /// <summary>
         /// A new user has moved into a region in this instance so retrieve their profile from the user service.
         /// </summary>
@@ -119,7 +146,7 @@ namespace OpenSim.Framework.Communications.Cache
             CachedUserInfo userInfo = GetUserDetails(userID);
             if (userInfo != null)
             {
-                m_commsManager.InventoryService.RequestInventoryForUser(userID, userInfo.InventoryReceive);
+                m_commsManager.SecureInventoryService.RequestInventoryForUser(userID, userInfo.SessionID, userInfo.InventoryReceive);
                 //IInventoryServices invService = userInfo.GetInventoryService();
                 //if (invService != null)
                 //{

OpenSim/Framework/Communications/CommunicationsManager.cs

@@ -112,6 +112,12 @@ namespace OpenSim.Framework.Communications
 
         protected List<IInventoryServices> m_inventoryServices = new List<IInventoryServices>();
         // protected IInventoryServices m_inventoryService;
+        protected ISecureInventoryService m_secureinventoryServices;
+
+        public ISecureInventoryService SecureInventoryService
+        {
+            get { return m_secureinventoryServices; }
+        }
         
         public IInventoryServices InventoryService
         {

OpenSim/Grid/InventoryServer/GridInventoryService.cs

@@ -26,12 +26,15 @@
  */
 
 using System;
+using System.Collections;
 using System.Collections.Generic;
 using System.Reflection;
 using System.Threading;
+using System.Net;
 
 using libsecondlife;
 using log4net;
+using Nwc.XmlRpc;
 
 using OpenSim.Framework;
 using OpenSim.Framework.Communications;
@@ -46,6 +49,44 @@ namespace OpenSim.Grid.InventoryServer
         private static readonly ILog m_log
             = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 
+        private string m_userserver_url;
+
+        public GridInventoryService(string userserver_url)
+        {
+            m_userserver_url = userserver_url;
+        }
+
+        public bool CheckTrustSource(IPEndPoint peer)
+        {
+            m_log.InfoFormat("[GRID AGENT INVENTORY]: checking trusted source {0}", peer.ToString());
+            UriBuilder ub = new UriBuilder(m_userserver_url);
+            if (ub.Host == peer.Address.ToString())
+            {
+                return true;
+            }
+            return false;
+        }
+
+        public bool CheckAuthSession(string session_id, string avatar_id)
+        {
+            m_log.InfoFormat("[GRID AGENT INVENTORY]: checking authed session {0} {1}", session_id, avatar_id);
+            Hashtable requestData = new Hashtable();
+            requestData["avatar_uuid"] = avatar_id;
+            requestData["session_id"] = session_id;
+            ArrayList SendParams = new ArrayList();
+            SendParams.Add(requestData);
+            XmlRpcRequest UserReq = new XmlRpcRequest("check_auth_session", SendParams);
+            XmlRpcResponse UserResp = UserReq.Send(m_userserver_url, 3000);
+
+            Hashtable responseData = (Hashtable)UserResp.Value;
+
+            if (responseData.ContainsKey("auth_session") && responseData["auth_session"].ToString() == "TRUE")
+            {
+                return true;
+            }
+            return false;
+        }
+
         public override void RequestInventoryForUser(LLUUID userID, InventoryReceiptCallback callback)
         {
         }

OpenSim/Grid/InventoryServer/Main.cs

@@ -70,7 +70,8 @@ namespace OpenSim.Grid.InventoryServer
             
             m_config = new InventoryConfig(LogName, (Path.Combine(Util.configDir(), "InventoryServer_Config.xml")));
 
-            m_inventoryService = new GridInventoryService();
+            //m_inventoryService = new GridInventoryService();
+            m_inventoryService = new GridInventoryService(m_config.UserServerURL);
             m_inventoryService.AddPlugin(m_config.DatabaseProvider, m_config.DatabaseConnect);
 
             m_log.Info("[" + LogName + "]: Starting HTTP server ...");
@@ -85,36 +86,36 @@ namespace OpenSim.Grid.InventoryServer
         protected void AddHttpHandlers()
         {
             m_httpServer.AddStreamHandler(
-                new RestDeserialiseHandler<Guid, InventoryCollection>(
+                new RestDeserialiseSecureHandler<Guid, InventoryCollection>(
-                    "POST", "/GetInventory/", m_inventoryService.GetUserInventory));
+                    "POST", "/GetInventory/", m_inventoryService.GetUserInventory, m_inventoryService.CheckAuthSession));
 
             m_httpServer.AddStreamHandler(
-                new RestDeserialiseHandler<Guid, bool>(
+                new RestDeserialiseTrustedHandler<Guid, bool>(
-                    "POST", "/CreateInventory/", m_inventoryService.CreateUsersInventory));
+                    "POST", "/CreateInventory/", m_inventoryService.CreateUsersInventory, m_inventoryService.CheckTrustSource));
 
             m_httpServer.AddStreamHandler(
-                new RestDeserialiseHandler<InventoryFolderBase, bool>(
+                new RestDeserialiseSecureHandler<InventoryFolderBase, bool>(
-                    "POST", "/NewFolder/", m_inventoryService.AddFolder));
+                    "POST", "/NewFolder/", m_inventoryService.AddFolder, m_inventoryService.CheckAuthSession));
 
             m_httpServer.AddStreamHandler(
-                new RestDeserialiseHandler<InventoryFolderBase, bool>(
+                new RestDeserialiseSecureHandler<InventoryFolderBase, bool>(
-                    "POST", "/UpdateFolder/", m_inventoryService.UpdateFolder));
+                    "POST", "/UpdateFolder/", m_inventoryService.UpdateFolder, m_inventoryService.CheckAuthSession));
 
             m_httpServer.AddStreamHandler(
-                new RestDeserialiseHandler<InventoryFolderBase, bool>(
+                new RestDeserialiseSecureHandler<InventoryFolderBase, bool>(
-                    "POST", "/MoveFolder/", m_inventoryService.MoveFolder));
+                    "POST", "/MoveFolder/", m_inventoryService.MoveFolder, m_inventoryService.CheckAuthSession));
 
             m_httpServer.AddStreamHandler(
-                new RestDeserialiseHandler<InventoryFolderBase, bool>(
+                new RestDeserialiseSecureHandler<InventoryFolderBase, bool>(
-                    "POST", "/PurgeFolder/", m_inventoryService.PurgeFolder));
+                    "POST", "/PurgeFolder/", m_inventoryService.PurgeFolder, m_inventoryService.CheckAuthSession));
 
             m_httpServer.AddStreamHandler(
-                new RestDeserialiseHandler<InventoryItemBase, bool>(
+                new RestDeserialiseSecureHandler<InventoryItemBase, bool>(
-                    "POST", "/NewItem/", m_inventoryService.AddItem));
+                    "POST", "/NewItem/", m_inventoryService.AddItem, m_inventoryService.CheckAuthSession));
 
             m_httpServer.AddStreamHandler(
-                new RestDeserialiseHandler<InventoryItemBase, bool>(
+                new RestDeserialiseSecureHandler<InventoryItemBase, bool>(
-                    "POST", "/DeleteItem/", m_inventoryService.DeleteItem));
+                    "POST", "/DeleteItem/", m_inventoryService.DeleteItem, m_inventoryService.CheckAuthSession));
 
             // WARNING: Root folders no longer just delivers the root and immediate child folders (e.g
             // system folders such as Objects, Textures), but it now returns the entire inventory skeleton.
@@ -122,8 +123,8 @@ namespace OpenSim.Grid.InventoryServer
             // (e.g. any http request not found is automatically treated as an xmlrpc request) make it easier
             // to do this for now.
             m_httpServer.AddStreamHandler(
-                new RestDeserialiseHandler<Guid, List<InventoryFolderBase>>
+                new RestDeserialiseTrustedHandler<Guid, List<InventoryFolderBase>>
-                    ("POST", "/RootFolders/", m_inventoryService.GetInventorySkeleton));
+                    ("POST", "/RootFolders/", m_inventoryService.GetInventorySkeleton, m_inventoryService.CheckTrustSource));
         }
 
         private void Work()

OpenSim/Grid/UserServer/Main.cs

@@ -142,6 +142,7 @@ namespace OpenSim.Grid.UserServer
             m_httpServer.AddXmlRPCHandler("update_user_current_region", m_userManager.XmlRPCAtRegion);
             m_httpServer.AddXmlRPCHandler("logout_of_simulator", m_userManager.XmlRPCLogOffUserMethodUUID);
             m_httpServer.AddXmlRPCHandler("get_agent_by_uuid", m_userManager.XmlRPCGetAgentMethodUUID);
+            m_httpServer.AddXmlRPCHandler("check_auth_session", m_userManager.XmlRPCCheckAuthSession);
             // Message Server ---> User Server
             m_httpServer.AddXmlRPCHandler("register_messageserver", m_messagesService.XmlRPCRegisterMessageServer);
             m_httpServer.AddXmlRPCHandler("agent_change_region", m_messagesService.XmlRPCUserMovedtoRegion);

OpenSim/Grid/UserServer/UserManager.cs

@@ -457,6 +457,45 @@ namespace OpenSim.Grid.UserServer
             return response;
         }
 
+        public XmlRpcResponse XmlRPCCheckAuthSession(XmlRpcRequest request)
+        {
+            XmlRpcResponse response = new XmlRpcResponse();
+            Hashtable requestData = (Hashtable)request.Params[0];
+            UserProfileData userProfile;
+
+            string authed = "FALSE";
+            if (requestData.Contains("avatar_uuid") && requestData.Contains("session_id"))
+            {
+                LLUUID guess_aid = LLUUID.Zero;
+                LLUUID guess_sid = LLUUID.Zero;
+
+                Helpers.TryParse((string)requestData["avatar_uuid"], out guess_aid);
+                if (guess_aid == LLUUID.Zero)
+                {
+                    return CreateUnknownUserErrorResponse();
+                }
+                Helpers.TryParse((string)requestData["session_id"], out guess_sid);
+                if (guess_sid == LLUUID.Zero)
+                {
+                    return CreateUnknownUserErrorResponse();
+                }
+                userProfile = GetUserProfile(guess_aid);
+                if (userProfile != null && userProfile.CurrentAgent != null && userProfile.CurrentAgent.SessionID == guess_sid)
+                {
+                    authed = "TRUE";
+                }
+                m_log.InfoFormat("[UserManager]: CheckAuthSession TRUE for user {0}", guess_aid);
+            }
+            else
+            {
+                m_log.InfoFormat("[UserManager]: CheckAuthSession FALSE");
+                return CreateUnknownUserErrorResponse();
+            }
+            Hashtable responseData = new Hashtable();
+            responseData["auth_session"] = authed;
+            response.Value = responseData;
+            return response;
+        }
 
         public XmlRpcResponse XmlRpcResponseXmlRPCUpdateUserProfile(XmlRpcRequest request)
         {

OpenSim/Region/Communications/OGS1/CommunicationsOGS1.cs

@@ -41,6 +41,7 @@ namespace OpenSim.Region.Communications.OGS1
             m_gridService = gridInterComms;
             m_interRegion = gridInterComms;
 
+            m_secureinventoryServices = new OGS1SecureInventoryService(serversInfo.InventoryURL);
             OGS1InventoryService invService = new OGS1InventoryService(serversInfo.InventoryURL);
             AddInventoryService(invService);
             m_defaultInventoryHost = invService.Host;

OpenSim/Region/Environment/Scenes/Scene.cs

@@ -2019,7 +2019,8 @@ namespace OpenSim.Region.Environment.Scenes
             {
                 m_log.Info("[REGION]: Add New Scene Presence");
 
-                CommsManager.UserProfileCacheService.AddNewUser(client.AgentId);
+                //CommsManager.UserProfileCacheService.AddNewUser(client.AgentId);
+                CommsManager.UserProfileCacheService.AddNewUser(client);
 
                 CreateAndAddScenePresence(client, child);
             }

prebuild.xml

@@ -1772,6 +1772,7 @@
       <Reference name="OpenSim.Framework.Servers"/>
       <Reference name="libsecondlife.dll"/>
       <Reference name="log4net.dll"/>
+      <Reference name="XMLRPC.dll"/>
 
       <Files>
         <Match pattern="*.cs" recurse="true"/>