* Commit allows downloading of the .raw terrain from the estate tools.

* Implements the SendInitiateDownload method in IClientAPI 
* Uses the ITerrainModule Interface to write a terrain file to disk then uses a FileStream to read the binary file from the disk and put it in a byte array. and save to the xFer list.
* It then tells the client to download the file and the client initiates an Xfer request.

OpenSim/Framework/IClientAPI.cs

@@ -340,6 +340,8 @@ namespace OpenSim.Framework
 
     public delegate void EstateChangeInfo(IClientAPI client, UUID invoice, UUID senderID, UInt32 param1, UInt32 param2);
 
+    public delegate void RequestTerrain(IClientAPI remoteClient, string clientFileName);
+
     public delegate void BakeTerrain(IClientAPI remoteClient);
 
     public delegate void EstateRestartSimRequest(IClientAPI remoteClient, int secondsTilReboot);
@@ -651,6 +653,8 @@ namespace OpenSim.Framework
         event ObjectBuy OnObjectBuy;
         event BuyObjectInventory OnBuyObjectInventory;
 
+        event RequestTerrain OnRequestTerrain;
+
         event ObjectIncludeInSearch OnObjectIncludeInSearch;
 
         event UUIDNameRequest OnTeleportHomeRequest;
@@ -906,6 +910,8 @@ namespace OpenSim.Framework
         void SendConfirmXfer(ulong xferID, uint PacketID);
         void SendXferRequest(ulong XferID, short AssetType, UUID vFileID, byte FilePath, byte[] FileName);
 
+        void SendInitiateDownload(string simFileName, string clientFileName);
+
         /// <summary>
         /// Send the first part of a texture.  For sufficiently small textures, this may be the only packet.
         /// </summary>

OpenSim/Region/ClientStack/LindenUDP/LLClientView.cs

@@ -205,6 +205,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         private ParcelAbandonRequest handlerParcelAbandonRequest;
         private ParcelGodForceOwner handlerParcelGodForceOwner;
         private ParcelReclaim handlerParcelReclaim;
+        private RequestTerrain handlerRequestTerrain;
         private ParcelReturnObjectsRequest handlerParcelReturnObjectsRequest;
         private RegionInfoRequest handlerRegionInfoRequest; //OnRegionInfoRequest;
         private EstateCovenantRequest handlerEstateCovenantRequest; //OnEstateCovenantRequest;
@@ -895,6 +896,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         public event XferReceive OnXferReceive;
         public event RequestXfer OnRequestXfer;
         public event ConfirmXfer OnConfirmXfer;
+        public event RequestTerrain OnRequestTerrain;
         public event RezScript OnRezScript;
         public event UpdateTaskInventory OnUpdateTaskInventory;
         public event MoveTaskInventory OnMoveTaskItem;
@@ -2527,7 +2529,14 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             newPack.Header.Zerocoded = true;
             OutPacket(newPack, ThrottleOutPacketType.Asset);
         }
-
+        public void SendInitiateDownload(string simFileName, string clientFileName)
+        {
+            InitiateDownloadPacket newPack = new InitiateDownloadPacket();
+            newPack.AgentData.AgentID = AgentId;
+            newPack.FileData.SimFilename = Utils.StringToBytes(simFileName);
+            newPack.FileData.ViewerFilename = Utils.StringToBytes(clientFileName);
+            OutPacket(newPack, ThrottleOutPacketType.Asset);
+        }
         public void SendImageFirstPart(
             ushort numParts, UUID ImageUUID, uint ImageSize, byte[] ImageData, byte imageCodec)
         {
@@ -5974,12 +5983,31 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                             break;
                         case "terrain":
                             if (((Scene)m_scene).ExternalChecks.ExternalChecksCanIssueEstateCommand(AgentId, false))
+                            {
+                                if (messagePacket.ParamList.Length > 0)
+                                {
+                                    if (Utils.BytesToString(messagePacket.ParamList[0].Parameter) == "bake")
                                     {
                                         handlerBakeTerrain = OnBakeTerrain;
                                         if (handlerBakeTerrain != null)
                                         {
                                             handlerBakeTerrain(this);
                                         }
+                                    }
+                                    if (Utils.BytesToString(messagePacket.ParamList[0].Parameter) == "download filename")
+                                    {
+                                        if (messagePacket.ParamList.Length > 1)
+                                        {
+                                            handlerRequestTerrain = OnRequestTerrain;
+                                            if (handlerRequestTerrain != null)
+                                            {
+                                                handlerRequestTerrain(this, Utils.BytesToString(messagePacket.ParamList[1].Parameter));
+                                            }
+                                        }
+                                    }
+                                }
+
+
                             }
                             break;
 

OpenSim/Region/Environment/Modules/Agent/Xfer/XferModule.cs

@@ -105,6 +105,7 @@ namespace OpenSim.Region.Environment.Modules.Agent.Xfer
         /// <param name="fileName"></param>
         public void RequestXfer(IClientAPI remoteClient, ulong xferID, string fileName)
         {
+            
             lock (NewFiles)
             {
                 if (NewFiles.ContainsKey(fileName))

OpenSim/Region/Environment/Modules/World/Estate/EstateManagementModule.cs

@@ -421,6 +421,31 @@ namespace OpenSim.Region.Environment.Modules.World.Estate
             }
         }
 
+        private void handleTerrainRequest(IClientAPI remote_client, string clientFileName)
+        {
+            // Save terrain here
+            OpenSim.Region.Environment.Modules.World.Terrain.ITerrainModule terr = m_scene.RequestModuleInterface<OpenSim.Region.Environment.Modules.World.Terrain.ITerrainModule>();
+            
+            if (terr != null)
+            {
+                m_log.Warn("[CLIENT]: Got Request to Send Terrain in region " + m_scene.RegionInfo.RegionName);
+                if (System.IO.File.Exists(Util.dataDir() + "/terrain.raw"))
+                {
+                    System.IO.File.Delete(Util.dataDir() + "/terrain.raw");
+                }
+                terr.SaveToFile(Util.dataDir() + "/terrain.raw");
+
+                System.IO.FileStream input = new System.IO.FileStream(Util.dataDir() + "/terrain.raw", System.IO.FileMode.Open);
+                byte[] bdata = new byte[input.Length];
+                input.Read(bdata, 0, (int)input.Length);
+                remote_client.SendAlertMessage("Terrain file written, starting download...");
+                m_scene.XferManager.AddNewFile("terrain.raw", bdata);
+                // Tell client about it
+                m_log.Warn("[CLIENT]: Sending Terrain to " + remote_client.Name);
+                remote_client.SendInitiateDownload("terrain.raw", clientFileName);
+            }
+        }
+
         private void HandleRegionInfoRequest(IClientAPI remote_client)
         {
 
@@ -767,6 +792,7 @@ namespace OpenSim.Region.Environment.Modules.World.Estate
             client.OnEstateDebugRegionRequest += handleEstateDebugRegionRequest;
             client.OnEstateTeleportOneUserHomeRequest += handleEstateTeleportOneUserHomeRequest;
             client.OnEstateTeleportAllUsersHomeRequest += handleEstateTeleportAllUsersHomeRequest;
+            client.OnRequestTerrain += handleTerrainRequest;
 
             client.OnRegionInfoRequest += HandleRegionInfoRequest;
             client.OnEstateCovenantRequest += HandleEstateCovenantRequest;

OpenSim/Region/Environment/Modules/World/NPC/NPCAvatar.cs

@@ -268,7 +268,7 @@ namespace OpenSim.Region.Environment.Modules.World.NPC
         public event ObjectDeselect OnObjectDeselect;
         public event RegionInfoRequest OnRegionInfoRequest;
         public event EstateCovenantRequest OnEstateCovenantRequest;
-
+        public event RequestTerrain OnRequestTerrain;
         public event ObjectDuplicateOnRay OnObjectDuplicateOnRay;
 
         public event FriendActionDelegate OnApproveFriendRequest;
@@ -698,6 +698,10 @@ namespace OpenSim.Region.Environment.Modules.World.NPC
         {
         }
 
+        public void SendInitiateDownload(string simFileName, string clientFileName)
+        {
+        }
+
         public void SendImageFirstPart(ushort numParts, UUID ImageUUID, uint ImageSize, byte[] ImageData, byte imageCodec)
         {
         }

OpenSim/Region/Examples/SimpleModule/MyNpcCharacter.cs

@@ -136,6 +136,7 @@ namespace OpenSim.Region.Examples.SimpleModule
         public event CopyInventoryItem OnCopyInventoryItem;
         public event MoveInventoryItem OnMoveInventoryItem;
         public event UDPAssetUploadRequest OnAssetUploadRequest;
+        public event RequestTerrain OnRequestTerrain;
         public event XferReceive OnXferReceive;
         public event RequestXfer OnRequestXfer;
         public event ConfirmXfer OnConfirmXfer;
@@ -615,6 +616,10 @@ namespace OpenSim.Region.Examples.SimpleModule
         {
         }
 
+        public void SendInitiateDownload(string simFileName, string clientFileName)
+        {
+        }
+
         public void SendImageFirstPart(ushort numParts, UUID ImageUUID, uint ImageSize, byte[] ImageData, byte imageCodec)
         {
         }