From e4fea6d11bc719530dd8051f0012ef21e88a6b7d Mon Sep 17 00:00:00 2001
From: MW
Date: Tue, 28 Aug 2007 14:26:23 +0000
Subject: Moved XferModule to OpenSim.Region.Environment.Modules
 namespace/directory.

---
 OpenSim/Region/Environment/Modules/XferModule.cs | 175 +++++++++++++++++++++++
 1 file changed, 175 insertions(+)
 create mode 100644 OpenSim/Region/Environment/Modules/XferModule.cs

(limited to 'OpenSim/Region/Environment/Modules/XferModule.cs')

diff --git a/OpenSim/Region/Environment/Modules/XferModule.cs b/OpenSim/Region/Environment/Modules/XferModule.cs
new file mode 100644
index 0000000..b0d1bf6
--- /dev/null
+++ b/OpenSim/Region/Environment/Modules/XferModule.cs
@@ -0,0 +1,175 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+using libsecondlife;
+using OpenSim.Framework.Interfaces;
+using OpenSim.Framework.Utilities;
+using OpenSim.Region.Environment.Scenes;
+using OpenSim.Region.Environment.Interfaces;
+
+namespace OpenSim.Region.Environment.Modules
+{
+    public class XferModule : IRegionModule
+    {
+        public Dictionary<string, byte[]> NewFiles = new Dictionary<string, byte[]>();
+        public Dictionary<ulong, XferDownLoad> Transfers = new Dictionary<ulong, XferDownLoad>();
+
+        private Scene m_scene;
+
+        public XferModule()
+        {
+
+        }
+
+        public void Initialise(Scene scene)
+        {
+            m_scene = scene;
+            m_scene.EventManager.OnNewClient += NewClient;
+
+            m_scene.RegisterAPIMethod("API_AddXferFile", new ModuleAPIMethod<bool, string, byte[]>(this.AddNewFile));
+        }
+
+        public void PostInitialise()
+        {
+
+        }
+
+        public void CloseDown()
+        {
+
+        }
+
+        public string GetName()
+        {
+            return "XferModule";
+        }
+
+        public void NewClient(IClientAPI client)
+        {
+            client.OnRequestXfer += RequestXfer;
+            client.OnConfirmXfer += AckPacket;
+        }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="remoteClient"></param>
+        /// <param name="xferID"></param>
+        /// <param name="fileName"></param>
+        public void RequestXfer(IClientAPI remoteClient, ulong xferID, string fileName)
+        {
+            lock (NewFiles)
+            {
+                if (NewFiles.ContainsKey(fileName))
+                {       
+                    if (!Transfers.ContainsKey(xferID))
+                    {
+                        byte[] fileData = NewFiles[fileName];
+                        XferDownLoad transaction = new XferDownLoad(fileName, fileData, xferID, remoteClient);
+                        Transfers.Add(xferID, transaction);
+                        NewFiles.Remove(fileName);
+                        transaction.StartSend();
+                    }
+                }
+            }
+        }
+
+        public void AckPacket(IClientAPI remoteClient, ulong xferID, uint packet)
+        {
+            if (this.Transfers.ContainsKey(xferID))
+            {
+                Transfers[xferID].AckPacket(packet);
+            }
+        }
+
+        public bool AddNewFile(string fileName, byte[] data)
+        {
+            lock (NewFiles)
+            {
+                if (NewFiles.ContainsKey(fileName))
+                {
+                    NewFiles[fileName] = data;
+                }
+                else
+                {
+                    NewFiles.Add(fileName, data);
+                }
+            }
+            return true;
+        }
+
+
+        public class XferDownLoad
+        {
+            public byte[] Data = new byte[0];
+            public string FileName = "";
+            public ulong XferID = 0;
+            public int DataPointer = 0;
+            public uint Packet = 0;
+            public IClientAPI Client;
+            public uint Serial = 1;
+            private bool complete = false;
+
+            public XferDownLoad(string fileName, byte[] data, ulong xferID, IClientAPI client)
+            {
+                FileName = fileName;
+                Data = data;
+                XferID = xferID;
+                Client = client;
+            }
+
+            public XferDownLoad()
+            {
+
+            }
+
+            public void StartSend()
+            {
+                if (Data.Length < 1000)
+                {
+                    // for now (testing ) we only support files under 1000 bytes
+                    byte[] transferData = new byte[Data.Length + 4];
+                    Array.Copy(Helpers.IntToBytes(Data.Length), 0, transferData, 0, 4);
+                    Array.Copy(Data, 0, transferData, 4, Data.Length);
+                    Client.SendXferPacket(XferID, 0 + 0x80000000, transferData);
+                    complete = true;
+                }
+                else
+                {
+                    byte[] transferData = new byte[1000 +4];
+                    Array.Copy(Helpers.IntToBytes(Data.Length), 0, transferData, 0, 4);
+                    Array.Copy(Data, 0, transferData, 4, 1000);
+                    Client.SendXferPacket(XferID, 0 , transferData);
+                    Packet++;
+                    DataPointer = 1000;
+                }
+            }
+
+            public void AckPacket(uint packet)
+            {
+                if (!complete)
+                {
+                    if ((Data.Length - DataPointer) > 1000)
+                    {
+                        byte[] transferData = new byte[1000];
+                        Array.Copy(Data, DataPointer, transferData, 0, 1000);
+                        Client.SendXferPacket(XferID, Packet, transferData);
+                        Packet++;
+                        DataPointer += 1000;
+                    }
+                    else
+                    {
+                        byte[] transferData = new byte[Data.Length - DataPointer];
+                        Array.Copy(Data, DataPointer, transferData, 0, Data.Length - DataPointer);
+                        uint endPacket = Packet |= (uint)0x80000000;
+                        Client.SendXferPacket(XferID, endPacket, transferData);
+                        Packet++;
+                        DataPointer += (Data.Length - DataPointer);
+                        complete = true;
+                    }
+                }
+            }
+        }
+    }
+}
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