4 files changed, 107 insertions, 21 deletions

diff --git a/OpenSim/Server/Handlers/Hypergrid/HeloServerConnector.cs b/OpenSim/Server/Handlers/Hypergrid/HeloServerConnector.cs
new file mode 100644
index 0000000..39baa32
--- /dev/null
+++ b/OpenSim/Server/Handlers/Hypergrid/HeloServerConnector.cs
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Net;
+using System.Reflection;
+using Nini.Config;
+using log4net;
+using OpenSim.Server.Base;
+using OpenSim.Services.Interfaces;
+using OpenSim.Framework.Servers.HttpServer;
+using OpenSim.Server.Handlers.Base;
+
+namespace OpenSim.Server.Handlers.Hypergrid
+{
+    public class HeloServiceInConnector : ServiceConnector
+    {
+        public HeloServiceInConnector(IConfigSource config, IHttpServer server, string configName) :
+                base(config, server, configName)
+        {
+            server.AddStreamHandler(new HeloServerGetHandler("opensim-robust"));
+        }
+    }
+
+    public class HeloServerGetHandler : BaseStreamHandler
+    {
+        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
+        private string m_HandlersType;
+
+        public HeloServerGetHandler(string handlersType) :
+            base("GET", "/helo")
+        {
+            m_HandlersType = handlersType;
+        }
+
+        public override byte[] Handle(string path, Stream requestData,
+                OSHttpRequest httpRequest, OSHttpResponse httpResponse)
+        {
+            return OKResponse(httpResponse);
+        }
+
+        private byte[] OKResponse(OSHttpResponse httpResponse)
+        {
+            m_log.Debug("[HELO]: hi, I was called");
+            httpResponse.AddHeader("X-Handlers-Provided", m_HandlersType);
+            httpResponse.StatusCode = (int)HttpStatusCode.OK;
+            httpResponse.StatusDescription = "OK";
+            return new byte[0];
+        }
+
+    }
+}
diff --git a/OpenSim/Server/Handlers/Hypergrid/HomeAgentHandlers.cs b/OpenSim/Server/Handlers/Hypergrid/HomeAgentHandlers.cs
index e50481a..d10d6fc 100644
--- a/OpenSim/Server/Handlers/Hypergrid/HomeAgentHandlers.cs
+++ b/OpenSim/Server/Handlers/Hypergrid/HomeAgentHandlers.cs
@@ -54,9 +54,12 @@ namespace OpenSim.Server.Handlers.Hypergrid
         private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
         private IUserAgentService m_UserAgentService;
 
-        public HomeAgentHandler(IUserAgentService userAgentService)
+        private string m_LoginServerIP;
+
+        public HomeAgentHandler(IUserAgentService userAgentService, string loginServerIP)
         {
             m_UserAgentService = userAgentService;
+            m_LoginServerIP = loginServerIP;
         }
 
         public Hashtable Handler(Hashtable request)
@@ -120,6 +123,7 @@ namespace OpenSim.Server.Handlers.Hypergrid
             string regionname = string.Empty;
             string gatekeeper_host = string.Empty;
             int gatekeeper_port = 0;
+            IPEndPoint client_ipaddress = null;
 
             if (args.ContainsKey("gatekeeper_host") && args["gatekeeper_host"] != null)
                 gatekeeper_host = args["gatekeeper_host"].AsString();
@@ -144,6 +148,24 @@ namespace OpenSim.Server.Handlers.Hypergrid
             if (args.ContainsKey("destination_name") && args["destination_name"] != null)
                 regionname = args["destination_name"].ToString();
 
+            if (args.ContainsKey("client_ip") && args["client_ip"] != null)
+            {
+                string ip_str = args["client_ip"].ToString();
+                try
+                {
+                    string callerIP = Util.GetCallerIP(request);
+                    // Verify if this caller has authority to send the client IP
+                    if (callerIP == m_LoginServerIP)
+                        client_ipaddress = new IPEndPoint(IPAddress.Parse(ip_str), 0);
+                    else
+                        m_log.WarnFormat("[HOME AGENT HANDLER]: Unauthorized machine {0} tried to set client ip to {1}", callerIP, ip_str);
+                }
+                catch
+                {
+                    m_log.DebugFormat("[HOME AGENT HANDLER]: Exception parsing client ip address from {0}", ip_str);
+                }
+            }
+
             GridRegion destination = new GridRegion();
             destination.RegionID = uuid;
             destination.RegionLocX = x;
@@ -166,7 +188,7 @@ namespace OpenSim.Server.Handlers.Hypergrid
             OSDMap resp = new OSDMap(2);
             string reason = String.Empty;
 
-            bool result = m_UserAgentService.LoginAgentToGrid(aCircuit, gatekeeper, destination, out reason);
+            bool result = m_UserAgentService.LoginAgentToGrid(aCircuit, gatekeeper, destination, client_ipaddress, out reason);
 
             resp["reason"] = OSD.FromString(reason);
             resp["success"] = OSD.FromBoolean(result);
diff --git a/OpenSim/Server/Handlers/Hypergrid/UserAgentServerConnector.cs b/OpenSim/Server/Handlers/Hypergrid/UserAgentServerConnector.cs
index 6b1152b..70157d5 100644
--- a/OpenSim/Server/Handlers/Hypergrid/UserAgentServerConnector.cs
+++ b/OpenSim/Server/Handlers/Hypergrid/UserAgentServerConnector.cs
@@ -66,13 +66,15 @@ namespace OpenSim.Server.Handlers.Hypergrid
             if (m_HomeUsersService == null)
                 throw new Exception("UserAgent server connector cannot proceed because of missing service");
 
+            string loginServerIP = gridConfig.GetString("LoginServerIP", "127.0.0.1");
+
             server.AddXmlRPCHandler("agent_is_coming_home", AgentIsComingHome, false);
             server.AddXmlRPCHandler("get_home_region", GetHomeRegion, false);
             server.AddXmlRPCHandler("verify_agent", VerifyAgent, false);
             server.AddXmlRPCHandler("verify_client", VerifyClient, false);
             server.AddXmlRPCHandler("logout_agent", LogoutAgent, false);
 
-            server.AddHTTPHandler("/homeagent/", new HomeAgentHandler(m_HomeUsersService).Handler);
+            server.AddHTTPHandler("/homeagent/", new HomeAgentHandler(m_HomeUsersService, loginServerIP).Handler);
         }
 
         public XmlRpcResponse GetHomeRegion(XmlRpcRequest request, IPEndPoint remoteClient)
diff --git a/OpenSim/Server/Handlers/Simulation/AgentHandlers.cs b/OpenSim/Server/Handlers/Simulation/AgentHandlers.cs
index 392927a..2997430 100644
--- a/OpenSim/Server/Handlers/Simulation/AgentHandlers.cs
+++ b/OpenSim/Server/Handlers/Simulation/AgentHandlers.cs
@@ -179,7 +179,7 @@ namespace OpenSim.Server.Handlers.Simulation
             resp["reason"] = OSD.FromString(reason);
             resp["success"] = OSD.FromBoolean(result);
             // Let's also send out the IP address of the caller back to the caller (HG 1.5)
-            resp["your_ip"] = OSD.FromString(GetCallerIP(request));
+            resp["your_ip"] = OSD.FromString(Util.GetCallerIP(request));
 
             // TODO: add reason if not String.Empty?
             responsedata["int_response_code"] = HttpStatusCode.OK;
@@ -355,23 +355,6 @@ namespace OpenSim.Server.Handlers.Simulation
             m_SimulationService.ReleaseAgent(regionID, id, "");
         }
 
-        private string GetCallerIP(Hashtable req)
-        {
-            if (req.ContainsKey("headers"))
-            {
-                try
-                {
-                    Hashtable headers = (Hashtable)req["headers"];
-                    if (headers.ContainsKey("remote_addr") && headers["remote_addr"] != null)
-                        return headers["remote_addr"].ToString();
-                }
-                catch (Exception e)
-                {
-                    m_log.WarnFormat("[AGENT HANDLER]: exception in GetCallerIP: {0}", e.Message);
-                }
-            }
-            return string.Empty;
-        }
     }
 
 }