4 files changed, 72 insertions, 28 deletions

diff --git a/OpenSim/Region/Framework/Scenes/Scene.cs b/OpenSim/Region/Framework/Scenes/Scene.cs
index 54956ee..9cfe869 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.cs
@@ -3452,7 +3452,7 @@ namespace OpenSim.Region.Framework.Scenes
                         regions.Remove(RegionInfo.RegionHandle);
 
                         // This ends up being done asynchronously so that a logout isn't held up where there are many present but unresponsive neighbours.
-                        m_sceneGridService.SendCloseChildAgentConnections(agentID, regions);
+                        m_sceneGridService.SendCloseChildAgentConnections(agentID, acd.SessionID.ToString(), regions);
                     }
     
                     m_eventManager.TriggerClientClosed(agentID, this);
@@ -4202,10 +4202,16 @@ namespace OpenSim.Region.Framework.Scenes
 
             if (childAgentUpdate != null)
             {
+                if (cAgentData.SessionID != childAgentUpdate.ControllingClient.SessionId)
+                {
+                    m_log.WarnFormat("[SCENE]: Attempt to update agent {0} with invalid session id {1} (possibly from simulator in older version; tell them to update).", childAgentUpdate.UUID, cAgentData.SessionID);
+                    Console.WriteLine(String.Format("[SCENE]: Attempt to update agent {0} ({1}) with invalid session id {2}", 
+                        childAgentUpdate.UUID, childAgentUpdate.ControllingClient.SessionId, cAgentData.SessionID));
+                }
+
                 childAgentUpdate.ChildAgentDataUpdate(cAgentData);
                 return true;
             }
-
             return false;
         }
 
@@ -4221,20 +4227,24 @@ namespace OpenSim.Region.Framework.Scenes
             ScenePresence childAgentUpdate = GetScenePresence(cAgentData.AgentID);
             if (childAgentUpdate != null)
             {
-                // I can't imagine *yet* why we would get an update if the agent is a root agent..
-                // however to avoid a race condition crossing borders..
-                if (childAgentUpdate.IsChildAgent)
+                if (childAgentUpdate.ControllingClient.SessionId == cAgentData.SessionID)
                 {
-                    uint rRegionX = (uint)(cAgentData.RegionHandle >> 40);
-                    uint rRegionY = (((uint)(cAgentData.RegionHandle)) >> 8);
-                    uint tRegionX = RegionInfo.RegionLocX;
-                    uint tRegionY = RegionInfo.RegionLocY;
-                    //Send Data to ScenePresence
-                    childAgentUpdate.ChildAgentDataUpdate(cAgentData, tRegionX, tRegionY, rRegionX, rRegionY);
-                    // Not Implemented:
-                    //TODO: Do we need to pass the message on to one of our neighbors?
+                    // I can't imagine *yet* why we would get an update if the agent is a root agent..
+                    // however to avoid a race condition crossing borders..
+                    if (childAgentUpdate.IsChildAgent)
+                    {
+                        uint rRegionX = (uint)(cAgentData.RegionHandle >> 40);
+                        uint rRegionY = (((uint)(cAgentData.RegionHandle)) >> 8);
+                        uint tRegionX = RegionInfo.RegionLocX;
+                        uint tRegionY = RegionInfo.RegionLocY;
+                        //Send Data to ScenePresence
+                        childAgentUpdate.ChildAgentDataUpdate(cAgentData, tRegionX, tRegionY, rRegionX, rRegionY);
+                        // Not Implemented:
+                        //TODO: Do we need to pass the message on to one of our neighbors?
+                    }
                 }
-
+                else
+                    m_log.WarnFormat("[SCENE]: Attempt at updating position of agent {0} with invalid session id {1}", childAgentUpdate.UUID, cAgentData.SessionID);
                 return true;
             }
 
@@ -4277,6 +4287,25 @@ namespace OpenSim.Region.Framework.Scenes
 
             return false;
         }
+        /// <summary>
+        /// Authenticated close (via network)
+        /// </summary>
+        /// <param name="agentID"></param>
+        /// <param name="force"></param>
+        /// <param name="auth_token"></param>
+        /// <returns></returns>
+        public bool IncomingCloseAgent(UUID agentID, bool force, string auth_token)
+        {
+            //m_log.DebugFormat("[SCENE]: Processing incoming close agent {0} in region {1} with auth_token {2}", agentID, RegionInfo.RegionName, auth_token);
+
+            // Check that the auth_token is valid
+            AgentCircuitData acd = AuthenticateHandler.GetAgentCircuitData(agentID);
+            if (acd != null && acd.SessionID.ToString() == auth_token)
+                return IncomingCloseAgent(agentID, force);
+            else
+                m_log.ErrorFormat("[SCENE]: Request to close agent {0} with invalid authorization token {1}", agentID, auth_token);
+            return false;
+        }
 
         /// <summary>
         /// Tell a single agent to disconnect from the region.
@@ -4289,7 +4318,6 @@ namespace OpenSim.Region.Framework.Scenes
         public bool IncomingCloseAgent(UUID agentID, bool force)
         {
             //m_log.DebugFormat("[SCENE]: Processing incoming close agent for {0}", agentID);
-
             ScenePresence presence = m_sceneGraph.GetScenePresence(agentID);
             if (presence != null)
             {
@@ -4297,7 +4325,7 @@ namespace OpenSim.Region.Framework.Scenes
                 return true;
             }
 
-            // Agent not here
+            // Agent not here 
             return false;
         }
 
diff --git a/OpenSim/Region/Framework/Scenes/SceneCommunicationService.cs b/OpenSim/Region/Framework/Scenes/SceneCommunicationService.cs
index 8238e23..77889fa 100644
--- a/OpenSim/Region/Framework/Scenes/SceneCommunicationService.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneCommunicationService.cs
@@ -197,7 +197,7 @@ namespace OpenSim.Region.Framework.Scenes
         /// <summary>
         /// Closes a child agent on a given region
         /// </summary>
-        protected void SendCloseChildAgent(UUID agentID, ulong regionHandle)
+        protected void SendCloseChildAgent(UUID agentID, ulong regionHandle, string auth_token)
         {
             // let's do our best, but there's not much we can do if the neighbour doesn't accept.
 
@@ -210,7 +210,7 @@ namespace OpenSim.Region.Framework.Scenes
             m_log.DebugFormat(
                 "[SCENE COMMUNICATION SERVICE]: Sending close agent ID {0} to {1}", agentID, destination.RegionName);
 
-            m_scene.SimulationService.CloseAgent(destination, agentID);
+            m_scene.SimulationService.CloseAgent(destination, agentID, auth_token);
         }
 
         /// <summary>
@@ -219,14 +219,14 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         /// <param name="agentID"></param>
         /// <param name="regionslst"></param>
-        public void SendCloseChildAgentConnections(UUID agentID, List<ulong> regionslst)
+        public void SendCloseChildAgentConnections(UUID agentID, string auth_code, List<ulong> regionslst)
         {
             foreach (ulong handle in regionslst)
             {
                 // We must take a copy here since handle is acts like a reference when used in an iterator.
                 // This leads to race conditions if directly passed to SendCloseChildAgent with more than one neighbour region.
                 ulong handleCopy = handle;
-                Util.FireAndForget((o) => { SendCloseChildAgent(agentID, handleCopy); });
+                Util.FireAndForget((o) => { SendCloseChildAgent(agentID, handleCopy, auth_code); });
             }
         }
        
diff --git a/OpenSim/Region/Framework/Scenes/ScenePresence.cs b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
index 774546c..990ef6e 100644
--- a/OpenSim/Region/Framework/Scenes/ScenePresence.cs
+++ b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
@@ -1010,7 +1010,9 @@ namespace OpenSim.Region.Framework.Scenes
             // recorded, which stops the input from being processed.
             MovementFlag = 0;
 
-            m_scene.EventManager.TriggerOnMakeRootAgent(this);
+            // DIVA NOTE: I moved TriggerOnMakeRootAgent out of here and into the end of
+            // CompleteMovement. We don't want modules doing heavy computation before CompleteMovement
+            // is over.
         }
 
         public int GetStateSource()
@@ -1327,10 +1329,15 @@ namespace OpenSim.Region.Framework.Scenes
             bool flying = ((m_AgentControlFlags & AgentManager.ControlFlags.AGENT_CONTROL_FLY) != 0);
             MakeRootAgent(AbsolutePosition, flying);
             ControllingClient.MoveAgentIntoRegion(m_scene.RegionInfo, AbsolutePosition, look);
+            // Remember in HandleUseCircuitCode, we delayed this to here
+            // This will also send the initial data to clients when TP to a neighboring region. 
+            // Not ideal, but until we know we're TP-ing from a neighboring region, there's not much we can do
+            if (m_teleportFlags > 0)
+                SendInitialDataToMe();
 
 //            m_log.DebugFormat("[SCENE PRESENCE] Completed movement");
 
-            if ((m_callbackURI != null) && !m_callbackURI.Equals(""))
+            if (!string.IsNullOrEmpty(m_callbackURI))
             {
                 // We cannot sleep here since this would hold up the inbound packet processing thread, as
                 // CompleteMovement() is executed synchronously.  However, it might be better to delay the release
@@ -1358,9 +1365,6 @@ namespace OpenSim.Region.Framework.Scenes
             // Create child agents in neighbouring regions
             if (openChildAgents && !IsChildAgent)
             {
-                // Remember in HandleUseCircuitCode, we delayed this to here
-                SendInitialDataToMe();
-
                 IEntityTransferModule m_agentTransfer = m_scene.RequestModuleInterface<IEntityTransferModule>();
                 if (m_agentTransfer != null)
                     Util.FireAndForget(delegate { m_agentTransfer.EnableChildAgents(this); });
@@ -1382,6 +1386,11 @@ namespace OpenSim.Region.Framework.Scenes
 //            m_log.DebugFormat(
 //                "[SCENE PRESENCE]: Completing movement of {0} into region {1} took {2}ms", 
 //                client.Name, Scene.RegionInfo.RegionName, (DateTime.Now - startTime).Milliseconds);
+
+            // DIVA NOTE: moved this here from MakeRoot. We don't want modules making heavy
+            // computations before CompleteMovement is over
+            m_scene.EventManager.TriggerOnMakeRootAgent(this);
+
         }
 
         /// <summary>
@@ -2689,11 +2698,12 @@ namespace OpenSim.Region.Framework.Scenes
                 SendOtherAgentsAppearanceToMe();
 
                 EntityBase[] entities = Scene.Entities.GetEntities();
-                foreach(EntityBase e in entities)
+                foreach (EntityBase e in entities)
                 {
                     if (e != null && e is SceneObjectGroup)
                         ((SceneObjectGroup)e).SendFullUpdateToClient(ControllingClient);
                 }
+
             });
         }
 
@@ -2917,7 +2927,7 @@ namespace OpenSim.Region.Framework.Scenes
                 cadu.Velocity = Velocity;
 
                 AgentPosition agentpos = new AgentPosition();
-                agentpos.CopyFrom(cadu);
+                agentpos.CopyFrom(cadu, ControllingClient.SessionId);
 
                 // Let's get this out of the update loop
                 Util.FireAndForget(delegate { m_scene.SendOutChildAgentUpdates(agentpos, this); });
@@ -3155,7 +3165,11 @@ namespace OpenSim.Region.Framework.Scenes
             {
                 m_log.Debug("[SCENE PRESENCE]: Closing " + byebyeRegions.Count + " child agents");
 
-                m_scene.SceneGridService.SendCloseChildAgentConnections(ControllingClient.AgentId, byebyeRegions); 
+                AgentCircuitData acd = Scene.AuthenticateHandler.GetAgentCircuitData(UUID);
+                string auth = string.Empty;
+                if (acd != null)
+                    auth = acd.SessionID.ToString();
+                m_scene.SceneGridService.SendCloseChildAgentConnections(ControllingClient.AgentId, auth, byebyeRegions); 
             }
             
             foreach (ulong handle in byebyeRegions)
@@ -3252,6 +3266,7 @@ namespace OpenSim.Region.Framework.Scenes
 
             cAgent.AgentID = UUID;
             cAgent.RegionID = Scene.RegionInfo.RegionID;
+            cAgent.SessionID = ControllingClient.SessionId;
 
             cAgent.Position = AbsolutePosition;
             cAgent.Velocity = m_velocity;
diff --git a/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceCrossingTests.cs b/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceCrossingTests.cs
index 5a72239..5df9aba 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceCrossingTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/ScenePresenceCrossingTests.cs
@@ -112,6 +112,7 @@ namespace OpenSim.Region.Framework.Scenes.Tests
             //moveArgs.BodyRotation = Quaternion.CreateFromEulers(Vector3.Zero);
             moveArgs.BodyRotation = Quaternion.CreateFromEulers(new Vector3(0, 0, (float)-(Math.PI / 2)));
             moveArgs.ControlFlags = (uint)AgentManager.ControlFlags.AGENT_CONTROL_AT_POS;
+            moveArgs.SessionID = acd.SessionID;
 
             originalSp.HandleAgentUpdate(originalSp.ControllingClient, moveArgs);