From 42c45a87167a7aeb55d5c813a1b1cb8e0cc8a6dc Mon Sep 17 00:00:00 2001
From: MW <Michaelwri22@yahoo.co.uk>
Date: Sat, 19 May 2007 13:28:31 +0000
Subject: [PATCH] Added a CheckSumServer (handles template checksum , so there
 is no longer the need to connect to LL userserver). Currently onlt active in
 sandbox mode (someone simple needs to add "CheckSumServer checkserver = new
 CheckSumServer(12036, m_console);" to the grid userserver). Then when
 starting up the SL client add " -user localhost" (or whatever the IP address
 that the sim or grid userserver is at) to the command line

---
 OpenSim.RegionServer/CheckSumServer.cs        | 120 ++++++++++++++++++
 .../OpenSim.RegionServer.csproj               |  51 +++++---
 OpenSim.RegionServer/UDPServer.cs             |  12 +-
 OpenSim/OpenSimMain.cs                        |   3 +
 4 files changed, 161 insertions(+), 25 deletions(-)
 create mode 100644 OpenSim.RegionServer/CheckSumServer.cs

diff --git a/OpenSim.RegionServer/CheckSumServer.cs b/OpenSim.RegionServer/CheckSumServer.cs
new file mode 100644
index 0000000000..353383a0f9
--- /dev/null
+++ b/OpenSim.RegionServer/CheckSumServer.cs
@@ -0,0 +1,120 @@
+using System;
+using System.Text;
+using System.IO;
+using System.Threading;
+using System.Net;
+using System.Net.Sockets;
+using System.Timers;
+using System.Reflection;
+using System.Collections;
+using System.Collections.Generic;
+using libsecondlife;
+using libsecondlife.Packets;
+using OpenSim.world;
+using OpenSim.Terrain;
+using OpenSim.Framework.Interfaces;
+using OpenSim.Framework.Types;
+using OpenSim.UserServer;
+using OpenSim.Assets;
+using OpenSim.CAPS;
+using OpenSim.Framework.Console;
+using Nwc.XmlRpc;
+using OpenSim.Servers;
+using OpenSim.GenericConfig;
+
+
+namespace OpenSim
+{
+    public class CheckSumServer : UDPServer
+    {
+        public CheckSumServer(int port, ConsoleBase console)
+        {
+            listenPort = port;
+            this.m_console = console;
+        }
+
+        protected override void CreatePacketServer()
+        {
+
+        }
+
+        public override void RegisterPacketServer(PacketServer server)
+        {
+
+        }
+
+        protected override void OnReceivedData(IAsyncResult result)
+        {
+            ipeSender = new IPEndPoint(IPAddress.Any, 0);
+            epSender = (EndPoint)ipeSender;
+            Packet packet = null;
+            int numBytes = Server.EndReceiveFrom(result, ref epSender);
+            int packetEnd = numBytes - 1;
+
+            packet = Packet.BuildPacket(RecvBuffer, ref packetEnd, ZeroBuffer);
+
+            // do we already have a circuit for this endpoint
+            if (packet.Type == PacketType.SecuredTemplateChecksumRequest)
+            {
+                SecuredTemplateChecksumRequestPacket checksum = (SecuredTemplateChecksumRequestPacket)packet;
+                TemplateChecksumReplyPacket checkreply = new TemplateChecksumReplyPacket();
+                checkreply.DataBlock.Checksum = 180572585;
+                checkreply.DataBlock.Flags = 0;
+                checkreply.DataBlock.MajorVersion = 1;
+                checkreply.DataBlock.MinorVersion = 15;
+                checkreply.DataBlock.PatchVersion = 0;
+                checkreply.DataBlock.ServerVersion = 2;
+                checkreply.TokenBlock.Token = checksum.TokenBlock.Token;
+                this.SendPacket(checkreply, epSender);
+
+            }
+            else
+            { // invalid client
+              //  Console.Error.WriteLine("CheckSumServer.cs:OnReceivedData() - WARNING: Got a invalid packet from an invalid client - " + epSender.ToString());
+            }
+
+            Server.BeginReceiveFrom(RecvBuffer, 0, RecvBuffer.Length, SocketFlags.None, ref epSender, ReceivedData, null);
+        }
+
+        protected override void AddNewClient(Packet packet)
+        {
+        }
+
+        private void SendPacket(Packet Pack, EndPoint endp)
+        {
+            if (!Pack.Header.Resent)
+            {
+                // Set the sequence number
+
+                Pack.Header.Sequence = 1;
+
+            }
+            byte[] ZeroOutBuffer = new byte[4096];
+            byte[] sendbuffer;
+            sendbuffer = Pack.ToBytes();
+
+            try
+            {
+                if (Pack.Header.Zerocoded)
+                {
+                    int packetsize = Helpers.ZeroEncode(sendbuffer, sendbuffer.Length, ZeroOutBuffer);
+                    this.SendPackTo(ZeroOutBuffer, packetsize, SocketFlags.None, endp);
+                }
+                else
+                {
+                    this.SendPackTo(sendbuffer, sendbuffer.Length, SocketFlags.None, endp); 
+                }
+            }
+            catch (Exception)
+            {
+                OpenSim.Framework.Console.MainConsole.Instance.WriteLine(OpenSim.Framework.Console.LogPriority.MEDIUM, "OpenSimClient.cs:ProcessOutPacket() - WARNING: Socket exception occurred on connection " );
+                
+            }
+        }
+
+        private void SendPackTo(byte[] buffer, int size, SocketFlags flags, EndPoint endp)
+        {
+            this.Server.SendTo(buffer, size, flags, endp);
+        }
+    }
+}
diff --git a/OpenSim.RegionServer/OpenSim.RegionServer.csproj b/OpenSim.RegionServer/OpenSim.RegionServer.csproj
index 93285b4f56..5b586faa4f 100644
--- a/OpenSim.RegionServer/OpenSim.RegionServer.csproj
+++ b/OpenSim.RegionServer/OpenSim.RegionServer.csproj
@@ -1,4 +1,4 @@
-<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
     <ProjectType>Local</ProjectType>
     <ProductVersion>8.0.50727</ProductVersion>
@@ -6,7 +6,8 @@
     <ProjectGuid>{632E1BFD-0000-0000-0000-000000000000}</ProjectGuid>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
-    <ApplicationIcon></ApplicationIcon>
+    <ApplicationIcon>
+    </ApplicationIcon>
     <AssemblyKeyContainerName>
     </AssemblyKeyContainerName>
     <AssemblyName>OpenSim.RegionServer</AssemblyName>
@@ -15,9 +16,11 @@
     <DefaultTargetSchema>IE50</DefaultTargetSchema>
     <DelaySign>false</DelaySign>
     <OutputType>Library</OutputType>
-    <AppDesignerFolder></AppDesignerFolder>
+    <AppDesignerFolder>
+    </AppDesignerFolder>
     <RootNamespace>OpenSim.RegionServer</RootNamespace>
-    <StartupObject></StartupObject>
+    <StartupObject>
+    </StartupObject>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
   </PropertyGroup>
@@ -28,7 +31,8 @@
     <ConfigurationOverrideFile>
     </ConfigurationOverrideFile>
     <DefineConstants>TRACE;DEBUG</DefineConstants>
-    <DocumentationFile></DocumentationFile>
+    <DocumentationFile>
+    </DocumentationFile>
     <DebugSymbols>True</DebugSymbols>
     <FileAlignment>4096</FileAlignment>
     <Optimize>False</Optimize>
@@ -37,7 +41,8 @@
     <RemoveIntegerChecks>False</RemoveIntegerChecks>
     <TreatWarningsAsErrors>False</TreatWarningsAsErrors>
     <WarningLevel>4</WarningLevel>
-    <NoWarn></NoWarn>
+    <NoWarn>
+    </NoWarn>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <AllowUnsafeBlocks>False</AllowUnsafeBlocks>
@@ -46,7 +51,8 @@
     <ConfigurationOverrideFile>
     </ConfigurationOverrideFile>
     <DefineConstants>TRACE</DefineConstants>
-    <DocumentationFile></DocumentationFile>
+    <DocumentationFile>
+    </DocumentationFile>
     <DebugSymbols>False</DebugSymbols>
     <FileAlignment>4096</FileAlignment>
     <Optimize>True</Optimize>
@@ -55,26 +61,28 @@
     <RemoveIntegerChecks>False</RemoveIntegerChecks>
     <TreatWarningsAsErrors>False</TreatWarningsAsErrors>
     <WarningLevel>4</WarningLevel>
-    <NoWarn></NoWarn>
+    <NoWarn>
+    </NoWarn>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="System" >
+    <Reference Include="System">
       <HintPath>System.dll</HintPath>
       <Private>False</Private>
     </Reference>
-    <Reference Include="System.Xml" >
+    <Reference Include="System.Data" />
+    <Reference Include="System.Xml">
       <HintPath>System.Xml.dll</HintPath>
       <Private>False</Private>
     </Reference>
-    <Reference Include="libsecondlife.dll" >
+    <Reference Include="libsecondlife.dll">
       <HintPath>..\bin\libsecondlife.dll</HintPath>
       <Private>False</Private>
     </Reference>
-    <Reference Include="Axiom.MathLib.dll" >
+    <Reference Include="Axiom.MathLib.dll">
       <HintPath>..\bin\Axiom.MathLib.dll</HintPath>
       <Private>False</Private>
     </Reference>
-    <Reference Include="Db4objects.Db4o.dll" >
+    <Reference Include="Db4objects.Db4o.dll">
       <HintPath>..\bin\Db4objects.Db4o.dll</HintPath>
       <Private>False</Private>
     </Reference>
@@ -84,43 +92,43 @@
       <Name>OpenSim.Terrain.BasicTerrain</Name>
       <Project>{2270B8FE-0000-0000-0000-000000000000}</Project>
       <Package>{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</Package>
-			<Private>False</Private>
+      <Private>False</Private>
     </ProjectReference>
     <ProjectReference Include="..\OpenSim.Framework\OpenSim.Framework.csproj">
       <Name>OpenSim.Framework</Name>
       <Project>{8ACA2445-0000-0000-0000-000000000000}</Project>
       <Package>{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</Package>
-			<Private>False</Private>
+      <Private>False</Private>
     </ProjectReference>
     <ProjectReference Include="..\OpenSim.Framework.Console\OpenSim.Framework.Console.csproj">
       <Name>OpenSim.Framework.Console</Name>
       <Project>{A7CD0630-0000-0000-0000-000000000000}</Project>
       <Package>{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</Package>
-			<Private>False</Private>
+      <Private>False</Private>
     </ProjectReference>
     <ProjectReference Include="..\OpenSim.GenericConfig\Xml\OpenSim.GenericConfig.Xml.csproj">
       <Name>OpenSim.GenericConfig.Xml</Name>
       <Project>{E88EF749-0000-0000-0000-000000000000}</Project>
       <Package>{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</Package>
-			<Private>False</Private>
+      <Private>False</Private>
     </ProjectReference>
     <ProjectReference Include="..\OpenSim.Physics\Manager\OpenSim.Physics.Manager.csproj">
       <Name>OpenSim.Physics.Manager</Name>
       <Project>{8BE16150-0000-0000-0000-000000000000}</Project>
       <Package>{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</Package>
-			<Private>False</Private>
+      <Private>False</Private>
     </ProjectReference>
     <ProjectReference Include="..\OpenSim.Servers\OpenSim.Servers.csproj">
       <Name>OpenSim.Servers</Name>
       <Project>{8BB20F0A-0000-0000-0000-000000000000}</Project>
       <Package>{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</Package>
-			<Private>False</Private>
+      <Private>False</Private>
     </ProjectReference>
     <ProjectReference Include="..\XmlRpcCS\XMLRPC.csproj">
       <Name>XMLRPC</Name>
       <Project>{8E81D43C-0000-0000-0000-000000000000}</Project>
       <Package>{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</Package>
-			<Private>False</Private>
+      <Private>False</Private>
     </ProjectReference>
   </ItemGroup>
   <ItemGroup>
@@ -136,6 +144,7 @@
     <Compile Include="AuthenticateSessionsRemote.cs">
       <SubType>Code</SubType>
     </Compile>
+    <Compile Include="CheckSumServer.cs" />
     <Compile Include="Grid.cs">
       <SubType>Code</SubType>
     </Compile>
@@ -255,4 +264,4 @@
     <PostBuildEvent>
     </PostBuildEvent>
   </PropertyGroup>
-</Project>
+</Project>
\ No newline at end of file
diff --git a/OpenSim.RegionServer/UDPServer.cs b/OpenSim.RegionServer/UDPServer.cs
index 5c41485a4c..0bab05a1ce 100644
--- a/OpenSim.RegionServer/UDPServer.cs
+++ b/OpenSim.RegionServer/UDPServer.cs
@@ -72,7 +72,11 @@ namespace OpenSim
             }
         }
 
-        public UDPServer(int port, Grid gridServers, AssetCache assetCache, InventoryCache inventoryCache, RegionInfo _regionData, bool sandbox, bool accounts, ConsoleBase console , AuthenticateSessionsBase authenticateClass)
+        public UDPServer()
+        {
+        }
+
+        public UDPServer(int port, Grid gridServers, AssetCache assetCache, InventoryCache inventoryCache, RegionInfo _regionData, bool sandbox, bool accounts, ConsoleBase console, AuthenticateSessionsBase authenticateClass)
         {
             listenPort = port;
             this.m_gridServers = gridServers;
@@ -84,7 +88,7 @@ namespace OpenSim
             this.m_console = console;
             this.m_authenticateSessionsClass = authenticateClass;
             this.CreatePacketServer();
-            
+
             //set up delegate for authenticate sessions
             this.AuthenticateHandler = new AuthenticateSessionHandler(this.m_authenticateSessionsClass.AuthenticateSession);
         }
@@ -145,7 +149,7 @@ namespace OpenSim
             ServerIncoming = new IPEndPoint(IPAddress.Any, listenPort);
             Server = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
             Server.Bind(ServerIncoming);
-
+ 
             m_console.WriteLine("UDPServer.cs:ServerListener() - UDP socket bound, getting ready to listen");
 
             ipeSender = new IPEndPoint(IPAddress.Any, 0);
@@ -195,7 +199,7 @@ namespace OpenSim
 
         public virtual AuthenticateResponse AuthenticateSession(LLUUID sessionID, LLUUID agentID, uint circuitCode)
         {
-           return this.AuthenticateHandler(sessionID, agentID, circuitCode);
+            return this.AuthenticateHandler(sessionID, agentID, circuitCode);
         }
     }
 }
\ No newline at end of file
diff --git a/OpenSim/OpenSimMain.cs b/OpenSim/OpenSimMain.cs
index 97261aff14..30fed30e7d 100644
--- a/OpenSim/OpenSimMain.cs
+++ b/OpenSim/OpenSimMain.cs
@@ -56,6 +56,7 @@ namespace OpenSim
 
     public class OpenSimMain : RegionServerBase, conscmd_callback
     {
+        private CheckSumServer checkServer;
 
         public OpenSimMain(bool sandBoxMode, bool startLoginServer, string physicsEngine, bool useConfigFile, bool silent, string configFile)
         {
@@ -99,6 +100,8 @@ namespace OpenSim
                 //Authenticate Session Handler
                 AuthenticateSessionsLocal authen = new AuthenticateSessionsLocal();
                 this.AuthenticateSessionsHandler = authen;
+                this.checkServer = new CheckSumServer(12036, m_console);
+                this.checkServer.ServerListener();
             }
             else
             {