3 files changed, 51 insertions, 23 deletions

diff --git a/OpenSim/Region/CoreModules/World/Estate/EstateManagementModule.cs b/OpenSim/Region/CoreModules/World/Estate/EstateManagementModule.cs
index 42db1cf..17387da 100644
--- a/OpenSim/Region/CoreModules/World/Estate/EstateManagementModule.cs
+++ b/OpenSim/Region/CoreModules/World/Estate/EstateManagementModule.cs
@@ -829,26 +829,23 @@ namespace OpenSim.Region.CoreModules.World.Estate
         
         private void AbortTerrainXferHandler(IClientAPI remoteClient, ulong XferID)
         {
-            if (TerrainUploader != null)
+            lock (this)
             {
-                lock (TerrainUploader)
+                if ((TerrainUploader != null) && (XferID == TerrainUploader.XferID))
                 {
-                    if (XferID == TerrainUploader.XferID)
-                    {
-                        remoteClient.OnXferReceive -= TerrainUploader.XferReceive;
-                        remoteClient.OnAbortXfer -= AbortTerrainXferHandler;
-                        TerrainUploader.TerrainUploadDone -= HandleTerrainApplication;
+                    remoteClient.OnXferReceive -= TerrainUploader.XferReceive;
+                    remoteClient.OnAbortXfer -= AbortTerrainXferHandler;
+                    TerrainUploader.TerrainUploadDone -= HandleTerrainApplication;
 
-                        TerrainUploader = null;
-                        remoteClient.SendAlertMessage("Terrain Upload aborted by the client");
-                    }
+                    TerrainUploader = null;
+                    remoteClient.SendAlertMessage("Terrain Upload aborted by the client");
                 }
             }
-
         }
+
         private void HandleTerrainApplication(string filename, byte[] terrainData, IClientAPI remoteClient)
         {
-            lock (TerrainUploader)
+            lock (this)
             {
                 remoteClient.OnXferReceive -= TerrainUploader.XferReceive;
                 remoteClient.OnAbortXfer -= AbortTerrainXferHandler;
@@ -907,22 +904,32 @@ namespace OpenSim.Region.CoreModules.World.Estate
 
         private void handleUploadTerrain(IClientAPI remote_client, string clientFileName)
         {
-            if (TerrainUploader == null)
+            lock (this)
             {
-
-                TerrainUploader = new EstateTerrainXferHandler(remote_client, clientFileName);
-                lock (TerrainUploader)
+                if (TerrainUploader == null)
                 {
+                    m_log.DebugFormat("Starting to receive uploaded terrain");
+                    TerrainUploader = new EstateTerrainXferHandler(remote_client, clientFileName);
                     remote_client.OnXferReceive += TerrainUploader.XferReceive;
                     remote_client.OnAbortXfer += AbortTerrainXferHandler;
                     TerrainUploader.TerrainUploadDone += HandleTerrainApplication;
+                    TerrainUploader.RequestStartXfer(remote_client);
+                }
+                else
+                {
+                    remote_client.SendAlertMessage("Another Terrain Upload is in progress.  Please wait your turn!");
                 }
-                TerrainUploader.RequestStartXfer(remote_client);
-
             }
-            else
+        }
+
+        public bool IsTerrainXfer(ulong xferID)
+        {
+            lock (this)
             {
-                remote_client.SendAlertMessage("Another Terrain Upload is in progress.  Please wait your turn!");
+                if (TerrainUploader == null)
+                    return false;
+                else
+                    return TerrainUploader.XferID == xferID;
             }
         }
         
diff --git a/OpenSim/Region/CoreModules/World/Estate/EstateTerrainXferHandler.cs b/OpenSim/Region/CoreModules/World/Estate/EstateTerrainXferHandler.cs
index b8d8b10..2d74eaf 100644
--- a/OpenSim/Region/CoreModules/World/Estate/EstateTerrainXferHandler.cs
+++ b/OpenSim/Region/CoreModules/World/Estate/EstateTerrainXferHandler.cs
@@ -78,7 +78,10 @@ namespace OpenSim.Region.CoreModules.World.Estate
         /// <param name="data"></param>
         public void XferReceive(IClientAPI remoteClient, ulong xferID, uint packetID, byte[] data)
         {
-            if (mXferID == xferID)
+            if (mXferID != xferID)
+                return;
+
+            lock (this)
             {
                 if (m_asset.Data.Length > 1)
                 {
@@ -99,7 +102,6 @@ namespace OpenSim.Region.CoreModules.World.Estate
                 if ((packetID & 0x80000000) != 0)
                 {
                     SendCompleteMessage(remoteClient);
-
                 }
             }
         }
diff --git a/OpenSim/Region/CoreModules/World/WorldMap/WorldMapModule.cs b/OpenSim/Region/CoreModules/World/WorldMap/WorldMapModule.cs
index c985ca2..8383f4e 100644
--- a/OpenSim/Region/CoreModules/World/WorldMap/WorldMapModule.cs
+++ b/OpenSim/Region/CoreModules/World/WorldMap/WorldMapModule.cs
@@ -165,7 +165,16 @@ namespace OpenSim.Region.CoreModules.World.WorldMap
             regionimage = regionimage.Replace("-", "");
             m_log.Info("[WORLD MAP]: JPEG Map location: " + m_scene.RegionInfo.ServerURI + "index.php?method=" + regionimage);
 
-            MainServer.Instance.AddHTTPHandler(regionimage, OnHTTPGetMapImage);
+            MainServer.Instance.AddHTTPHandler(regionimage,
+                new GenericHTTPDOSProtector(OnHTTPGetMapImage, OnHTTPThrottled, new BasicDosProtectorOptions()
+                    {
+                        AllowXForwardedFor = false,
+                        ForgetTimeSpan = TimeSpan.FromMinutes(2),
+                        MaxRequestsInTimeframe = 4,
+                        ReportingName = "MAPDOSPROTECTOR",
+                        RequestTimeSpan = TimeSpan.FromSeconds(10),
+                        ThrottledAction = BasicDOSProtector.ThrottleAction.DoThrottledMethod
+                    }).Process);
             MainServer.Instance.AddLLSDHandler(
                 "/MAP/MapItems/" + m_scene.RegionInfo.RegionHandle.ToString(), HandleRemoteMapItemRequest);
 
@@ -1081,6 +1090,16 @@ namespace OpenSim.Region.CoreModules.World.WorldMap
             block.Y = (ushort)(r.RegionLocY / Constants.RegionSize);
         }
 
+        public Hashtable OnHTTPThrottled(Hashtable keysvals)
+        {
+            Hashtable reply = new Hashtable();
+            int statuscode = 500;
+            reply["str_response_string"] = "";
+            reply["int_response_code"] = statuscode;
+            reply["content_type"] = "text/plain";
+            return reply;
+        }
+
         public Hashtable OnHTTPGetMapImage(Hashtable keysvals)
         {
             m_log.Debug("[WORLD MAP]: Sending map image jpeg");