Standardize the way WebRequests are made in the SimulationServiceConnector. Added

debugging calls for tracking performance of web requests.

3 files changed, 313 insertions, 472 deletions

diff --git a/OpenSim/Framework/WebUtil.cs b/OpenSim/Framework/WebUtil.cs
index 1c856af..1cd9054 100644
--- a/OpenSim/Framework/WebUtil.cs
+++ b/OpenSim/Framework/WebUtil.cs
@@ -50,6 +50,8 @@ namespace OpenSim.Framework
                 LogManager.GetLogger(
                 MethodBase.GetCurrentMethod().DeclaringType);
 
+        private static int m_requestNumber = 0;
+        
         /// <summary>
         /// Send LLSD to an HTTP client in application/llsd+json form
         /// </summary>
@@ -123,12 +125,145 @@ namespace OpenSim.Framework
         }
 
         /// <summary>
+        /// PUT JSON-encoded data to a web service that returns LLSD or
+        /// JSON data
+        /// </summary>
+        public static OSDMap PutToService(string url, OSDMap data)
+        {
+            return ServiceOSDRequest(url,data,"PUT",10000);
+        }
+        
+        public static OSDMap PostToService(string url, OSDMap data)
+        {
+            return ServiceOSDRequest(url,data,"POST",10000);
+        }
+        
+        public static OSDMap GetFromService(string url)
+        {
+            return ServiceOSDRequest(url,null,"GET",10000);
+        }
+        
+        public static OSDMap ServiceOSDRequest(string url, OSDMap data, string method, int timeout)
+        {
+            int reqnum = m_requestNumber++;
+            m_log.WarnFormat("[WEB UTIL]: <{0}> start osd request for {1}, method {2}",reqnum,url,method);
+
+            string errorMessage = "unknown error";
+            int tickstart = Util.EnvironmentTickCount();
+            try
+            {
+                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
+                request.Method = method;
+                request.Timeout = timeout;
+                //request.KeepAlive = false;
+
+                // If there is some input, write it into the request
+                if (data != null)
+                {
+                    string strBuffer = OSDParser.SerializeJsonString(data);
+                    byte[] buffer = System.Text.Encoding.UTF8.GetBytes(strBuffer);
+
+                    request.ContentType = "application/json";
+                    request.ContentLength = buffer.Length;   //Count bytes to send
+                    using (Stream requestStream = request.GetRequestStream())
+                    {
+                        requestStream.Write(buffer, 0, strBuffer.Length);         //Send it
+                    }
+                }
+                
+                using (WebResponse webResponse = request.GetResponse())
+                {
+                    using (Stream responseStream = webResponse.GetResponseStream())
+                    {
+                        string responseStr = null;
+                        responseStr = responseStream.GetStreamString();
+                        m_log.WarnFormat("[WEB UTIL]: <{0}> response is <{1}>",reqnum,responseStr);
+                        return CanonicalizeResults(responseStr);
+                    }
+                }
+            }
+            catch (WebException we)
+            {
+                errorMessage = we.Message;
+                if (we.Status == WebExceptionStatus.ProtocolError)
+                {
+                    HttpWebResponse webResponse = (HttpWebResponse)we.Response;
+                    errorMessage = String.Format("[{0}] {1}",webResponse.StatusCode,webResponse.StatusDescription);
+                }
+            }
+            catch (Exception ex)
+            {
+                errorMessage = ex.Message;
+            }
+            finally
+            {
+                int tickdiff = Util.EnvironmentTickCountSubtract(tickstart);
+                if (tickdiff > 100)
+                    m_log.WarnFormat("[WEB UTIL]: request <{0}> took {1} milliseconds",reqnum,tickdiff);
+            }
+            
+            m_log.WarnFormat("[WEB UTIL] <{0}> request failed: {1}",reqnum,errorMessage);
+            return ErrorResponseMap(errorMessage);
+        }
+
+        /// <summary>
+        /// Since there are no consistencies in the way web requests are
+        /// formed, we need to do a little guessing about the result format.
+        /// Keys:
+        ///     Success|success == the success fail of the request
+        ///     _RawResult == the raw string that came back
+        ///     _Result == the OSD unpacked string
+        /// </summary>
+        private static OSDMap CanonicalizeResults(string response)
+        {
+            OSDMap result = new OSDMap();
+
+            // Default values
+            result["Success"] = OSD.FromBoolean(true);
+            result["success"] = OSD.FromBoolean(true);
+            result["_RawResult"] = OSD.FromString(response);
+            result["_Result"] = new OSDMap();
+            
+            if (response.Equals("true",System.StringComparison.OrdinalIgnoreCase))
+                return result;
+
+            if (response.Equals("false",System.StringComparison.OrdinalIgnoreCase))
+            {
+                result["Success"] = OSD.FromBoolean(false);
+                result["success"] = OSD.FromBoolean(false);
+                return result;
+            }
+
+            try 
+            {
+                OSD responseOSD = OSDParser.Deserialize(response);
+                if (responseOSD.Type == OSDType.Map)
+                {
+                    result["_Result"] = (OSDMap)responseOSD;
+                    return result;
+                }
+            }
+            catch (Exception e)
+            {
+                // don't need to treat this as an error... we're just guessing anyway
+                m_log.DebugFormat("[WEB UTIL] couldn't decode result: <{0}>",response);
+            }
+            
+            return result;
+        }
+        
+        /// <summary>
         /// POST URL-encoded form data to a web service that returns LLSD or
         /// JSON data
         /// </summary>
         public static OSDMap PostToService(string url, NameValueCollection data)
         {
+            int reqnum = m_requestNumber++;
+            string method = data["RequestMethod"] != null ? data["RequestMethod"] : "unknown";
+            m_log.WarnFormat("[WEB UTIL]: <{0}> start form request for {1}, method {2}",reqnum,url,method);
+
             string errorMessage;
+            int tickstart = Util.EnvironmentTickCount();
 
             try
             {
@@ -139,7 +274,7 @@ namespace OpenSim.Framework
                 request.Method = "POST";
                 request.ContentLength = requestData.Length;
                 request.ContentType = "application/x-www-form-urlencoded";
-
+                
                 Stream requestStream = request.GetRequestStream();
                 requestStream.Write(requestData, 0, requestData.Length);
                 requestStream.Close();
@@ -169,15 +304,42 @@ namespace OpenSim.Framework
                     }
                 }
             }
+            catch (WebException we)
+            {
+                errorMessage = we.Message;
+                if (we.Status == WebExceptionStatus.ProtocolError)
+                {
+                    HttpWebResponse webResponse = (HttpWebResponse)we.Response;
+                    errorMessage = String.Format("[{0}] {1}",webResponse.StatusCode,webResponse.StatusDescription);
+                }
+            }
             catch (Exception ex)
             {
-                m_log.Warn("POST to URL " + url + " failed: " + ex);
                 errorMessage = ex.Message;
             }
+            finally
+            {
+                int tickdiff = Util.EnvironmentTickCountSubtract(tickstart);
+                if (tickdiff > 100)
+                    m_log.WarnFormat("[WEB UTIL]: request <{0}> took {1} milliseconds",reqnum,tickdiff);
+            }
 
-            return new OSDMap { { "Message", OSD.FromString("Service request failed. " + errorMessage) } };
+            m_log.WarnFormat("[WEB UTIL]: <{0}> request failed: {1}",reqnum,errorMessage);
+            return ErrorResponseMap(errorMessage);
         }
 
+        /// <summary>
+        /// Create a response map for an error, trying to keep
+        /// the result formats consistent
+        /// </summary>
+        private static OSDMap ErrorResponseMap(string msg)
+        {
+            OSDMap result = new OSDMap();
+            result["Success"] = "False";
+            result["Message"] = OSD.FromString("Service request failed: " + msg);
+            return result;
+        }
+        
         #region Uri
 
         /// <summary>
diff --git a/OpenSim/Services/Connectors/Hypergrid/GatekeeperServiceConnector.cs b/OpenSim/Services/Connectors/Hypergrid/GatekeeperServiceConnector.cs
index a1d9167..6c69fec 100644
--- a/OpenSim/Services/Connectors/Hypergrid/GatekeeperServiceConnector.cs
+++ b/OpenSim/Services/Connectors/Hypergrid/GatekeeperServiceConnector.cs
@@ -283,46 +283,52 @@ namespace OpenSim.Services.Connectors.Hypergrid
 
         public bool CreateAgent(GridRegion destination, AgentCircuitData aCircuit, uint flags, out string myipaddress, out string reason)
         {
-            HttpWebRequest AgentCreateRequest = null;
+            m_log.WarnFormat("[GATEKEEPER SERVICE CONNECTOR]: CreateAgent start");
+
             myipaddress = String.Empty;
             reason = String.Empty;
 
-            if (SendRequest(destination, aCircuit, flags, out reason, out AgentCreateRequest))
+            if (destination == null)
             {
-                string response = GetResponse(AgentCreateRequest, out reason);
-                bool success = true;
-                UnpackResponse(response, out success, out reason, out myipaddress);
-                return success;
+                m_log.Debug("[GATEKEEPER SERVICE CONNECTOR]: Given destination is null");
+                return false;
             }
 
-            return false;
-        }
-
-        protected void UnpackResponse(string response, out bool result, out string reason, out string ipaddress)
-        {
-            result = true;
-            reason = string.Empty;
-            ipaddress = string.Empty;
+            string uri = destination.ServerURI + AgentPath() + aCircuit.AgentID + "/";
 
-            if (!String.IsNullOrEmpty(response))
+            try
             {
-                try
-                {
-                    // we assume we got an OSDMap back
-                    OSDMap r = Util.GetOSDMap(response);
-                    result = r["success"].AsBoolean();
-                    reason = r["reason"].AsString();
-                    ipaddress = r["your_ip"].AsString();
-                }
-                catch (NullReferenceException e)
+                OSDMap args = aCircuit.PackAgentCircuitData();
+
+                args["destination_x"] = OSD.FromString(destination.RegionLocX.ToString());
+                args["destination_y"] = OSD.FromString(destination.RegionLocY.ToString());
+                args["destination_name"] = OSD.FromString(destination.RegionName);
+                args["destination_uuid"] = OSD.FromString(destination.RegionID.ToString());
+                args["teleport_flags"] = OSD.FromString(flags.ToString());
+
+                OSDMap result = WebUtil.PostToService(uri,args);
+                if (result["Success"].AsBoolean())
                 {
-                    m_log.InfoFormat("[GATEKEEPER SERVICE CONNECTOR]: exception on UnpackResponse of DoCreateChildAgentCall {0}", e.Message);
-                    reason = "Internal error";
-                    result = false;
+                    OSDMap unpacked = (OSDMap)result["_Result"];
+
+                    if (unpacked != null)
+                    {
+                        reason = unpacked["reason"].AsString();
+                        myipaddress = unpacked["your_ip"].AsString();
+                        return unpacked["success"].AsBoolean();
+                    }
                 }
+                
+                reason = result["Message"] != null ? result["Message"].AsString() : "error";
+                return false;
+            }
+            catch (Exception e)
+            {
+                m_log.Warn("[REMOTE SIMULATION CONNECTOR]: CreateAgent failed with exception: " + e.ToString());
+                reason = e.Message;
             }
-        }
-
 
+            return false;
+        }
     }
 }
diff --git a/OpenSim/Services/Connectors/Simulation/SimulationServiceConnector.cs b/OpenSim/Services/Connectors/Simulation/SimulationServiceConnector.cs
index 4e3cfa5..4facc4a 100644
--- a/OpenSim/Services/Connectors/Simulation/SimulationServiceConnector.cs
+++ b/OpenSim/Services/Connectors/Simulation/SimulationServiceConnector.cs
@@ -75,469 +75,193 @@ namespace OpenSim.Services.Connectors.Simulation
             return "agent/";
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
         public bool CreateAgent(GridRegion destination, AgentCircuitData aCircuit, uint flags, out string reason)
         {
-            HttpWebRequest AgentCreateRequest = null;
-            reason = String.Empty;
-
-            if (SendRequest(destination, aCircuit, flags, out reason, out AgentCreateRequest))
-            {
-                string response = GetResponse(AgentCreateRequest, out reason);
-                bool success = true;
-                UnpackResponse(response, out success, out reason);
-                return success;
-            }
-
-            return false;
-        }
-
-
-        protected bool SendRequest(GridRegion destination, AgentCircuitData aCircuit, uint flags, out string reason, out HttpWebRequest AgentCreateRequest)
-        {
+            m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR]: CreateAgent start");
+            
             reason = String.Empty;
-            AgentCreateRequest = null;
-
             if (destination == null)
             {
-                reason = "Destination is null";
                 m_log.Debug("[REMOTE SIMULATION CONNECTOR]: Given destination is null");
                 return false;
             }
 
             string uri = destination.ServerURI + AgentPath() + aCircuit.AgentID + "/";
-
-            AgentCreateRequest = (HttpWebRequest)WebRequest.Create(uri);
-            AgentCreateRequest.Method = "POST";
-            AgentCreateRequest.ContentType = "application/json";
-            AgentCreateRequest.Timeout = 10000;
-            //AgentCreateRequest.KeepAlive = false;
-            //AgentCreateRequest.Headers.Add("Authorization", authKey);
-
-            // Fill it in
-            OSDMap args = PackCreateAgentArguments(aCircuit, destination, flags);
-            if (args == null)
-                return false;
-
-            string strBuffer = "";
-            byte[] buffer = new byte[1];
+            
             try
             {
-                strBuffer = OSDParser.SerializeJsonString(args);
-                Encoding str = Util.UTF8;
-                buffer = str.GetBytes(strBuffer);
+                OSDMap args = aCircuit.PackAgentCircuitData();
 
-            }
-            catch (Exception e)
-            {
-                m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR]: Exception thrown on serialization of ChildCreate: {0}", e.Message);
-                // ignore. buffer will be empty, caller should check.
-            }
+                args["destination_x"] = OSD.FromString(destination.RegionLocX.ToString());
+                args["destination_y"] = OSD.FromString(destination.RegionLocY.ToString());
+                args["destination_name"] = OSD.FromString(destination.RegionName);
+                args["destination_uuid"] = OSD.FromString(destination.RegionID.ToString());
+                args["teleport_flags"] = OSD.FromString(flags.ToString());
 
-            Stream os = null;
-            try
-            { // send the Post
-                AgentCreateRequest.ContentLength = buffer.Length;   //Count bytes to send
-                os = AgentCreateRequest.GetRequestStream();
-                os.Write(buffer, 0, strBuffer.Length);         //Send it
-                m_log.DebugFormat("[REMOTE SIMULATION CONNECTOR]: Posted CreateAgent request to remote sim {0}, region {1}, x={2} y={3}",
-                    uri, destination.RegionName, destination.RegionLocX, destination.RegionLocY);
-            }
-            //catch (WebException ex)
-            catch
-            {
-                //m_log.ErrorFormat("[REMOTE SIMULATION CONNECTOR]: Bad send on ChildAgentUpdate {0}", ex.Message);
-                reason = "cannot contact remote region";
+                OSDMap result = WebUtil.PostToService(uri,args);
+                if (result["Success"].AsBoolean())
+                    return true;
+                
+                reason = result["Message"] != null ? result["Message"].AsString() : "error";
                 return false;
             }
-            finally
-            {
-                if (os != null)
-                    os.Close();
-            }
-
-            return true;
-        }
-
-        protected string GetResponse(HttpWebRequest AgentCreateRequest, out string reason)
-        {
-            // Let's wait for the response
-            //m_log.Info("[REMOTE SIMULATION CONNECTOR]: Waiting for a reply after DoCreateChildAgentCall");
-            reason = string.Empty;
-
-            WebResponse webResponse = null;
-            StreamReader sr = null;
-            string response = string.Empty;
-            try
-            {
-                webResponse = AgentCreateRequest.GetResponse();
-                if (webResponse == null)
-                {
-                    m_log.Debug("[REMOTE SIMULATION CONNECTOR]: Null reply on DoCreateChildAgentCall post");
-                }
-                else
-                {
-
-                    sr = new StreamReader(webResponse.GetResponseStream());
-                    response = sr.ReadToEnd().Trim();
-                    m_log.DebugFormat("[REMOTE SIMULATION CONNECTOR]: DoCreateChildAgentCall reply was {0} ", response);
-                }
-            }
-            catch (WebException ex)
-            {
-                m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR]: exception on reply of DoCreateChildAgentCall {0}", ex.Message);
-                reason = "Destination did not reply";
-                return string.Empty;
-            }
-            finally
-            {
-                if (sr != null)
-                    sr.Close();
-            }
-
-            return response;
-        }
-
-        protected void UnpackResponse(string response, out bool result, out string reason)
-        {
-            result = true;
-            reason = string.Empty;
-            if (!String.IsNullOrEmpty(response))
-            {
-                try
-                {
-                    // we assume we got an OSDMap back
-                    OSDMap r = Util.GetOSDMap(response);
-                    result = r["success"].AsBoolean();
-                    reason = r["reason"].AsString();
-                }
-                catch (NullReferenceException e)
-                {
-                    m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR]: exception on reply of DoCreateChildAgentCall {0}", e.Message);
-
-                    // check for old style response
-                    if (response.ToLower().StartsWith("true"))
-                        result = true;
-
-                    result = false;
-                }
-            }
-        }
-
-        protected virtual OSDMap PackCreateAgentArguments(AgentCircuitData aCircuit, GridRegion destination, uint flags)
-        {
-            OSDMap args = null;
-            try
-            {
-                args = aCircuit.PackAgentCircuitData();
-            }
             catch (Exception e)
             {
-                m_log.Warn("[REMOTE SIMULATION CONNECTOR]: PackAgentCircuitData failed with exception: " + e.Message);
-                return null;
+                m_log.Warn("[REMOTE SIMULATION CONNECTOR]: CreateAgent failed with exception: " + e.ToString());
+                reason = e.Message;
             }
-            
-            // Add the input arguments
-            args["destination_x"] = OSD.FromString(destination.RegionLocX.ToString());
-            args["destination_y"] = OSD.FromString(destination.RegionLocY.ToString());
-            args["destination_name"] = OSD.FromString(destination.RegionName);
-            args["destination_uuid"] = OSD.FromString(destination.RegionID.ToString());
-            args["teleport_flags"] = OSD.FromString(flags.ToString());
-
-            return args;
+
+            return false;
         }
 
+        /// <summary>
+        /// Send complete data about an agent in this region to a neighbor
+        /// </summary>
         public bool UpdateAgent(GridRegion destination, AgentData data)
         {
             return UpdateAgent(destination, (IAgentData)data);
         }
 
+        /// <summary>
+        /// Send updated position information about an agent in this region to a neighbor
+        /// This operation may be called very frequently if an avatar is moving about in
+        /// the region.
+        /// </summary>
         public bool UpdateAgent(GridRegion destination, AgentPosition data)
         {
+            // we need a better throttle for these
+            return false;
+            
             return UpdateAgent(destination, (IAgentData)data);
         }
 
+        /// <summary>
+        /// This is the worker function to send AgentData to a neighbor region
+        /// </summary>
         private bool UpdateAgent(GridRegion destination, IAgentData cAgentData)
         {
-            // Eventually, we want to use a caps url instead of the agentID
+            m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR]: UpdateAgent start");
 
+            // Eventually, we want to use a caps url instead of the agentID
             string uri = destination.ServerURI + AgentPath() + cAgentData.AgentID + "/";
 
-            HttpWebRequest ChildUpdateRequest = (HttpWebRequest)WebRequest.Create(uri);
-            ChildUpdateRequest.Method = "PUT";
-            ChildUpdateRequest.ContentType = "application/json";
-            ChildUpdateRequest.Timeout = 30000;
-            //ChildUpdateRequest.KeepAlive = false;
-
-            // Fill it in
-            OSDMap args = null;
             try
             {
-                args = cAgentData.Pack();
-            }
-            catch (Exception e)
-            {
-                m_log.Warn("[REMOTE SIMULATION CONNECTOR]: PackUpdateMessage failed with exception: " + e.Message);
-            }
-            // Add the input arguments
-            args["destination_x"] = OSD.FromString(destination.RegionLocX.ToString());
-            args["destination_y"] = OSD.FromString(destination.RegionLocY.ToString());
-            args["destination_name"] = OSD.FromString(destination.RegionName);
-            args["destination_uuid"] = OSD.FromString(destination.RegionID.ToString());
-
-            string strBuffer = "";
-            byte[] buffer = new byte[1];
-            try
-            {
-                strBuffer = OSDParser.SerializeJsonString(args);
-                Encoding str = Util.UTF8;
-                buffer = str.GetBytes(strBuffer);
-
-            }
-            catch (Exception e)
-            {
-                m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR]: Exception thrown on serialization of ChildUpdate: {0}", e.Message);
-                // ignore. buffer will be empty, caller should check.
-            }
+                OSDMap args = cAgentData.Pack();
 
-            Stream os = null;
-            try
-            { // send the Post
-                ChildUpdateRequest.ContentLength = buffer.Length;   //Count bytes to send
-                os = ChildUpdateRequest.GetRequestStream();
-                os.Write(buffer, 0, strBuffer.Length);         //Send it
-                //m_log.DebugFormat("[REMOTE SIMULATION CONNECTOR]: Posted AgentUpdate request to remote sim {0}", uri);
-            }
-            catch (WebException ex)
-            //catch
-            {
-                m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR]: Bad send on AgentUpdate {0}", ex.Message);
+                args["destination_x"] = OSD.FromString(destination.RegionLocX.ToString());
+                args["destination_y"] = OSD.FromString(destination.RegionLocY.ToString());
+                args["destination_name"] = OSD.FromString(destination.RegionName);
+                args["destination_uuid"] = OSD.FromString(destination.RegionID.ToString());
 
-                return false;
+                OSDMap result = WebUtil.PutToService(uri,args);
+                return result["Success"].AsBoolean();
             }
-            finally
-            {
-                if (os != null)
-                    os.Close();
-            }
-
-            // Let's wait for the response
-            //m_log.Debug("[REMOTE SIMULATION CONNECTOR]: Waiting for a reply after ChildAgentUpdate");
-
-            WebResponse webResponse = null;
-            StreamReader sr = null;
-            try
-            {
-                webResponse = ChildUpdateRequest.GetResponse();
-                if (webResponse == null)
-                {
-                    m_log.Debug("[REMOTE SIMULATION CONNECTOR]: Null reply on ChilAgentUpdate post");
-                }
-
-                sr = new StreamReader(webResponse.GetResponseStream());
-                //reply = sr.ReadToEnd().Trim();
-                sr.ReadToEnd().Trim();
-                sr.Close();
-                //m_log.DebugFormat("[REMOTE SIMULATION CONNECTOR]: ChilAgentUpdate reply was {0} ", reply);
-
-            }
-            catch (WebException ex)
-            {
-                m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR]: exception on reply of ChilAgentUpdate from {0}: {1}", uri, ex.Message);
-                // ignore, really
-            }
-            finally
+            catch (Exception e)
             {
-                if (sr != null)
-                    sr.Close();
+                m_log.Warn("[REMOTE SIMULATION CONNECTOR]: UpdateAgent failed with exception: " + e.ToString());
             }
 
-            return true;
+            return false;
         }
 
+        /// <summary>
+        /// Not sure what sequence causes this function to be invoked. The only calling
+        /// path is through the GET method 
+        /// </summary>
         public bool RetrieveAgent(GridRegion destination, UUID id, out IAgentData agent)
         {
+            m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR]: RetrieveAgent start");
+
             agent = null;
+
             // Eventually, we want to use a caps url instead of the agentID
             string uri = destination.ServerURI + AgentPath() + id + "/" + destination.RegionID.ToString() + "/";
 
-            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);
-            request.Method = "GET";
-            request.Timeout = 10000;
-            //request.Headers.Add("authorization", ""); // coming soon
-
-            HttpWebResponse webResponse = null;
-            string reply = string.Empty;
-            StreamReader sr = null;
             try
             {
-                webResponse = (HttpWebResponse)request.GetResponse();
-                if (webResponse == null)
+                OSDMap result = WebUtil.GetFromService(uri);
+                if (result["Success"].AsBoolean())
                 {
-                    m_log.Debug("[REMOTE SIMULATION CONNECTOR]: Null reply on agent get ");
+                    // OSDMap args = Util.GetOSDMap(result["_RawResult"].AsString());
+                    OSDMap args = (OSDMap)result["_Result"];
+                    if (args != null)
+                    {
+                        agent = new CompleteAgentData();
+                        agent.Unpack(args);
+                        return true;
+                    }
                 }
-
-                sr = new StreamReader(webResponse.GetResponseStream());
-                reply = sr.ReadToEnd().Trim();
-
-
             }
-            catch (WebException ex)
-            {
-                m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR]: exception on reply of agent get {0}", ex.Message);
-                // ignore, really
-                return false;
-            }
-            finally
-            {
-                if (sr != null)
-                    sr.Close();
-            }
-
-            if (webResponse.StatusCode == HttpStatusCode.OK)
+            catch (Exception e)
             {
-                // we know it's jason
-                OSDMap args = Util.GetOSDMap(reply);
-                if (args == null)
-                {
-                    return false;
-                }
-
-                agent = new CompleteAgentData();
-                agent.Unpack(args);
-                return true;
+                m_log.Warn("[REMOTE SIMULATION CONNECTOR]: UpdateAgent failed with exception: " + e.ToString());
             }
 
             return false;
         }
 
+        /// <summary>
+        /// </summary>
         public bool QueryAccess(GridRegion destination, UUID id)
         {
+            m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR]: QueryAccess start");
+
             IPEndPoint ext = destination.ExternalEndPoint;
             if (ext == null) return false;
+
             // Eventually, we want to use a caps url instead of the agentID
             string uri = destination.ServerURI + AgentPath() + id + "/" + destination.RegionID.ToString() + "/";
 
-            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);
-            request.Method = "QUERYACCESS";
-            request.Timeout = 10000;
-            //request.Headers.Add("authorization", ""); // coming soon
-
-            HttpWebResponse webResponse = null;
-            string reply = string.Empty;
-            StreamReader sr = null;
             try
             {
-                webResponse = (HttpWebResponse)request.GetResponse();
-                if (webResponse == null)
-                {
-                    m_log.Debug("[REMOTE SIMULATION CONNECTOR]: Null reply on agent query ");
-                }
-
-                sr = new StreamReader(webResponse.GetResponseStream());
-                reply = sr.ReadToEnd().Trim();
-
-
-            }
-            catch (WebException ex)
-            {
-                m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR]: exception on reply of agent query {0}", ex.Message);
-                // ignore, really
-                return false;
+                OSDMap result = WebUtil.ServiceOSDRequest(uri,null,"QUERYACCESS",10000);
+                return result["Success"].AsBoolean();
             }
-            finally
+            catch (Exception e)
             {
-                if (sr != null)
-                    sr.Close();
+                m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR] QueryAcess failed with exception; {0}",e.ToString());
             }
-
-            if (webResponse.StatusCode == HttpStatusCode.OK)
-            {
-                try
-                {
-                    bool result;
-
-                    result = bool.Parse(reply);
-
-                    return result;
-                }
-                catch
-                {
-                    return false;
-                }
-            }
-
+            
             return false;
         }
 
+        /// <summary>
+        /// </summary>
         public bool ReleaseAgent(UUID origin, UUID id, string uri)
         {
-            WebRequest request = WebRequest.Create(uri);
-            request.Method = "DELETE";
-            request.Timeout = 10000;
+            m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR]: ReleaseAgent start");
 
-            StreamReader sr = null;
             try
             {
-                WebResponse webResponse = request.GetResponse();
-                if (webResponse == null)
-                {
-                    m_log.Debug("[REMOTE SIMULATION CONNECTOR]: Null reply on ReleaseAgent");
-                }
-
-                sr = new StreamReader(webResponse.GetResponseStream());
-                //reply = sr.ReadToEnd().Trim();
-                sr.ReadToEnd().Trim();
-                sr.Close();
-                //m_log.InfoFormat("[REMOTE SIMULATION CONNECTOR]: ChilAgentUpdate reply was {0} ", reply);
-
-            }
-            catch (WebException ex)
-            {
-                m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR]: exception on reply of ReleaseAgent {0}", ex.Message);
-                return false;
+                OSDMap result = WebUtil.ServiceOSDRequest(uri,null,"DELETE",10000);
             }
-            finally
+            catch (Exception e)
             {
-                if (sr != null)
-                    sr.Close();
+                m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR] ReleaseAgent failed with exception; {0}",e.ToString());
             }
-
+            
             return true;
         }
 
+        /// <summary>
+        /// </summary>
         public bool CloseAgent(GridRegion destination, UUID id)
         {
-            string uri = destination.ServerURI + AgentPath() + id + "/" + destination.RegionID.ToString() + "/";
+            m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR]: CloseAgent start");
 
-            WebRequest request = WebRequest.Create(uri);
-            request.Method = "DELETE";
-            request.Timeout = 10000;
+            string uri = destination.ServerURI + AgentPath() + id + "/" + destination.RegionID.ToString() + "/";
 
-            StreamReader sr = null;
             try
             {
-                WebResponse webResponse = request.GetResponse();
-                if (webResponse == null)
-                {
-                    m_log.Debug("[REMOTE SIMULATION CONNECTOR]: Null reply on agent delete ");
-                }
-
-                sr = new StreamReader(webResponse.GetResponseStream());
-                //reply = sr.ReadToEnd().Trim();
-                sr.ReadToEnd().Trim();
-                sr.Close();
-                //m_log.InfoFormat("[REMOTE SIMULATION CONNECTOR]: ChilAgentUpdate reply was {0} ", reply);
-
-            }
-            catch (WebException ex)
-            {
-                m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR]: exception on reply of agent delete from {0}: {1}", destination.RegionName, ex.Message);
-                return false;
+                OSDMap result = WebUtil.ServiceOSDRequest(uri,null,"DELETE",10000);
             }
-            finally
+            catch (Exception e)
             {
-                if (sr != null)
-                    sr.Close();
+                m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR] CloseAgent failed with exception; {0}",e.ToString());
             }
 
             return true;
@@ -552,97 +276,46 @@ namespace OpenSim.Services.Connectors.Simulation
             return "object/";
         }
 
+        /// <summary>
+        ///
+        /// </summary>
         public bool CreateObject(GridRegion destination, ISceneObject sog, bool isLocalCall)
         {
-            string uri
-                = destination.ServerURI + ObjectPath() + sog.UUID + "/";
-            //m_log.Debug("   >>> DoCreateObjectCall <<< " + uri);
-
-            WebRequest ObjectCreateRequest = WebRequest.Create(uri);
-            ObjectCreateRequest.Method = "POST";
-            ObjectCreateRequest.ContentType = "application/json";
-            ObjectCreateRequest.Timeout = 10000;
-
-            OSDMap args = new OSDMap(2);
-            args["sog"] = OSD.FromString(sog.ToXml2());
-            args["extra"] = OSD.FromString(sog.ExtraToXmlString());
-            args["modified"] = OSD.FromBoolean(sog.HasGroupChanged);
-            string state = sog.GetStateSnapshot();
-            if (state.Length > 0)
-                args["state"] = OSD.FromString(state);
-            // Add the input general arguments
-            args["destination_x"] = OSD.FromString(destination.RegionLocX.ToString());
-            args["destination_y"] = OSD.FromString(destination.RegionLocY.ToString());
-            args["destination_name"] = OSD.FromString(destination.RegionName);
-            args["destination_uuid"] = OSD.FromString(destination.RegionID.ToString());
-
-            string strBuffer = "";
-            byte[] buffer = new byte[1];
-            try
-            {
-                strBuffer = OSDParser.SerializeJsonString(args);
-                Encoding str = Util.UTF8;
-                buffer = str.GetBytes(strBuffer);
+            m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR]: CreateObject start");
 
-            }
-            catch (Exception e)
-            {
-                m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR]: Exception thrown on serialization of CreateObject: {0}", e.Message);
-                // ignore. buffer will be empty, caller should check.
-            }
+            string uri = destination.ServerURI + ObjectPath() + sog.UUID + "/";
 
-            Stream os = null;
             try
-            { // send the Post
-                ObjectCreateRequest.ContentLength = buffer.Length;   //Count bytes to send
-                os = ObjectCreateRequest.GetRequestStream();
-                os.Write(buffer, 0, strBuffer.Length);         //Send it
-                m_log.DebugFormat("[REMOTE SIMULATION CONNECTOR]: Posted CreateObject request to remote sim {0}", uri);
-            }
-            catch (WebException ex)
-            {
-                m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR]: Bad send on CreateObject {0}", ex.Message);
-                return false;
-            }
-            finally
             {
-                if (os != null)
-                    os.Close();
-            }
+                OSDMap args = new OSDMap(2);
 
-            // Let's wait for the response
-            //m_log.Info("[REMOTE SIMULATION CONNECTOR]: Waiting for a reply after DoCreateChildAgentCall");
+                args["sog"] = OSD.FromString(sog.ToXml2());
+                args["extra"] = OSD.FromString(sog.ExtraToXmlString());
+                args["modified"] = OSD.FromBoolean(sog.HasGroupChanged);
 
-            StreamReader sr = null;
-            try
-            {
-                WebResponse webResponse = ObjectCreateRequest.GetResponse();
-                if (webResponse == null)
-                {
-                    m_log.Warn("[REMOTE SIMULATION CONNECTOR]: Null reply on CreateObject post");
-                    return false;
-                }
+                string state = sog.GetStateSnapshot();
+                if (state.Length > 0)
+                    args["state"] = OSD.FromString(state);
 
-                sr = new StreamReader(webResponse.GetResponseStream());
-                //reply = sr.ReadToEnd().Trim();
-                sr.ReadToEnd().Trim();
-                //m_log.InfoFormat("[REMOTE SIMULATION CONNECTOR]: DoCreateChildAgentCall reply was {0} ", reply);
+                // Add the input general arguments
+                args["destination_x"] = OSD.FromString(destination.RegionLocX.ToString());
+                args["destination_y"] = OSD.FromString(destination.RegionLocY.ToString());
+                args["destination_name"] = OSD.FromString(destination.RegionName);
+                args["destination_uuid"] = OSD.FromString(destination.RegionID.ToString());
 
+                OSDMap result = WebUtil.PostToService(uri,args);
             }
-            catch (WebException ex)
-            {
-                m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR]: exception on reply of CreateObject {0}", ex.Message);
-                return false;
-            }
-            finally
+            catch (Exception e)
             {
-                if (sr != null)
-                    sr.Close();
+                m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR] CreateObject failed with exception; {0}",e.ToString());
             }
 
             return true;
         }
 
+        /// <summary>
+        ///
+        /// </summary>
         public bool CreateObject(GridRegion destination, UUID userID, UUID itemID)
         {
             // TODO, not that urgent