From 8fc68c6d9810a0d229e94a0cefb35086c65dec36 Mon Sep 17 00:00:00 2001
From: Diva Canto
Date: Fri, 3 Sep 2010 17:18:53 -0700
Subject: Added XFF header processing. Untested, for lack of proxy.

---
 .../Framework/Servers/HttpServer/BaseHttpServer.cs |  2 ++
 OpenSim/Framework/Util.cs                          | 28 ++++++++++++++++++++++
 OpenSim/Server/Handlers/Login/LLLoginHandlers.cs   | 12 +++++++++-
 .../Handlers/Login/LLLoginServiceInConnector.cs    |  5 +++-
 OpenSim/Services/LLLoginService/LLLoginService.cs  |  2 +-
 5 files changed, 46 insertions(+), 3 deletions(-)

(limited to 'OpenSim')

diff --git a/OpenSim/Framework/Servers/HttpServer/BaseHttpServer.cs b/OpenSim/Framework/Servers/HttpServer/BaseHttpServer.cs
index 95c3e6c..d20f8c9 100644
--- a/OpenSim/Framework/Servers/HttpServer/BaseHttpServer.cs
+++ b/OpenSim/Framework/Servers/HttpServer/BaseHttpServer.cs
@@ -28,6 +28,7 @@
 using System;
 using System.Collections;
 using System.Collections.Generic;
+using System.Collections.Specialized;
 using System.IO;
 using System.Net;
 using System.Net.Sockets;
@@ -737,6 +738,7 @@ namespace OpenSim.Framework.Servers.HttpServer
                     if (methodWasFound)
                     {
                         xmlRprcRequest.Params.Add(request.Url); // Param[2]
+                        xmlRprcRequest.Params.Add(request.Headers.Get("X-Forwarded-For")); // Param[3]
 
                         try
                         {
diff --git a/OpenSim/Framework/Util.cs b/OpenSim/Framework/Util.cs
index b5d025f..2ac4eb1 100644
--- a/OpenSim/Framework/Util.cs
+++ b/OpenSim/Framework/Util.cs
@@ -1495,5 +1495,33 @@ namespace OpenSim.Framework
             }
         }
 
+        /// <summary>
+        /// Gets the client IP address
+        /// </summary>
+        /// <param name="xff"></param>
+        /// <returns></returns>
+        public static IPEndPoint GetClientIPFromXFF(string xff)
+        {
+            if (xff == string.Empty)
+                return null;
+
+            string[] parts = xff.Split(new char[] { ',' });
+            if (parts.Length > 0)
+            {
+                try
+                {
+                    return new IPEndPoint(IPAddress.Parse(parts[0]), 0);
+                }
+                catch (Exception e)
+                {
+                    m_log.WarnFormat("[UTIL]: Exception parsing XFF header {0}: {1}", xff, e.Message);
+                }
+            }
+
+            return null;
+        }
+
+
+
     }
 }
diff --git a/OpenSim/Server/Handlers/Login/LLLoginHandlers.cs b/OpenSim/Server/Handlers/Login/LLLoginHandlers.cs
index 5bb529c..30dc65e 100644
--- a/OpenSim/Server/Handlers/Login/LLLoginHandlers.cs
+++ b/OpenSim/Server/Handlers/Login/LLLoginHandlers.cs
@@ -52,15 +52,24 @@ namespace OpenSim.Server.Handlers.Login
         private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 
         private ILoginService m_LocalService;
+        private bool m_Proxy;
 
-        public LLLoginHandlers(ILoginService service)
+        public LLLoginHandlers(ILoginService service, bool hasProxy)
         {
             m_LocalService = service;
+            m_Proxy = hasProxy;
         }
 
         public XmlRpcResponse HandleXMLRPCLogin(XmlRpcRequest request, IPEndPoint remoteClient)
         {
             Hashtable requestData = (Hashtable)request.Params[0];
+            if (m_Proxy && request.Params[3] != null)
+            {
+                IPEndPoint ep = Util.GetClientIPFromXFF((string)request.Params[3]);
+                if (ep != null)
+                    // Bang!
+                    remoteClient = ep;
+            }
 
             if (requestData != null)
             {
@@ -189,6 +198,7 @@ namespace OpenSim.Server.Handlers.Login
 
             return map;
         }
+
     }
 
 }
diff --git a/OpenSim/Server/Handlers/Login/LLLoginServiceInConnector.cs b/OpenSim/Server/Handlers/Login/LLLoginServiceInConnector.cs
index 67e8392..16c93c8 100644
--- a/OpenSim/Server/Handlers/Login/LLLoginServiceInConnector.cs
+++ b/OpenSim/Server/Handlers/Login/LLLoginServiceInConnector.cs
@@ -43,6 +43,7 @@ namespace OpenSim.Server.Handlers.Login
         private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 
         private ILoginService m_LoginService;
+        private bool m_Proxy;
 
         public LLLoginServiceInConnector(IConfigSource config, IHttpServer server, IScene scene) :
                 base(config, server, String.Empty)
@@ -81,12 +82,14 @@ namespace OpenSim.Server.Handlers.Login
             if (loginService == string.Empty)
                 throw new Exception(String.Format("No LocalServiceModule for LoginService in config file"));
 
+            m_Proxy = serverConfig.GetBoolean("HasProxy", false);
+
             return loginService;
         }
 
         private void InitializeHandlers(IHttpServer server)
         {
-            LLLoginHandlers loginHandlers = new LLLoginHandlers(m_LoginService);
+            LLLoginHandlers loginHandlers = new LLLoginHandlers(m_LoginService, m_Proxy);
             server.AddXmlRPCHandler("login_to_simulator", loginHandlers.HandleXMLRPCLogin, false);
             server.AddXmlRPCHandler("set_login_level", loginHandlers.HandleXMLRPCSetLoginLevel, false);
             server.SetDefaultLLSDHandler(loginHandlers.HandleLLSDLogin);
diff --git a/OpenSim/Services/LLLoginService/LLLoginService.cs b/OpenSim/Services/LLLoginService/LLLoginService.cs
index b740297..3f9bc19 100644
--- a/OpenSim/Services/LLLoginService/LLLoginService.cs
+++ b/OpenSim/Services/LLLoginService/LLLoginService.cs
@@ -104,7 +104,7 @@ namespace OpenSim.Services.LLLoginService
             m_GatekeeperURL = m_LoginServerConfig.GetString("GatekeeperURI", string.Empty);
             m_MapTileURL = m_LoginServerConfig.GetString("MapTileURL", string.Empty);
             m_SearchURL = m_LoginServerConfig.GetString("SearchURL", string.Empty);
-
+            
             // These are required; the others aren't
             if (accountService == string.Empty || authService == string.Empty)
                 throw new Exception("LoginService is missing service specifications");
-- 
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