Some reorganization around service connectors. No functional change

1 files changed, 921 insertions, 0 deletions

diff --git a/OpenSim/Region/CoreModules/ServiceConnectors/Interregion/RESTInterregionComms.cs b/OpenSim/Region/CoreModules/ServiceConnectors/Interregion/RESTInterregionComms.cs
new file mode 100644
index 0000000..7fafb6e
--- /dev/null
+++ b/OpenSim/Region/CoreModules/ServiceConnectors/Interregion/RESTInterregionComms.cs
@@ -0,0 +1,921 @@
+/*
+ * 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 OpenSim 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;
+using System.IO;
+using System.Net;
+using System.Reflection;
+using System.Text;
+using log4net;
+using Nini.Config;
+using OpenMetaverse;
+using OpenMetaverse.StructuredData;
+using OpenSim.Framework;
+using OpenSim.Framework.Communications;
+using OpenSim.Framework.Communications.Clients;
+using OpenSim.Region.Framework.Interfaces;
+using OpenSim.Region.Framework.Scenes;
+using OpenSim.Region.Framework.Scenes.Hypergrid;
+
+namespace OpenSim.Region.CoreModules.ServiceConnectors.Interregion
+{
+    public class RESTInterregionComms : IRegionModule, IInterregionCommsOut
+    {
+        private bool initialized = false;
+        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
+        protected bool m_enabled = false;
+        protected Scene m_aScene;
+        // RESTInterregionComms does not care about local regions; it delegates that to the Local module
+        protected LocalInterregionComms m_localBackend;
+
+        protected CommunicationsManager m_commsManager;
+
+        protected RegionToRegionClient m_regionClient;
+
+        protected bool m_safemode;
+        protected IPAddress m_thisIP;
+
+        #region IRegionModule
+
+        public virtual void Initialise(Scene scene, IConfigSource config)
+        {
+            if (!initialized)
+            {
+                initialized = true;
+                IConfig startupConfig = config.Configs["Communications"];
+                
+                if ((startupConfig == null) 
+                    || (startupConfig != null) 
+                    && (startupConfig.GetString("InterregionComms", "RESTComms") == "RESTComms"))
+                {
+                    m_log.Info("[REST COMMS]: Enabling InterregionComms RESTComms module");
+                    m_enabled = true;
+                    if (config.Configs["Hypergrid"] != null)
+                        m_safemode = config.Configs["Hypergrid"].GetBoolean("safemode", false);
+
+                    InitOnce(scene);
+                }
+            }
+
+            if (!m_enabled)
+                return;
+
+            InitEach(scene);
+
+        }
+
+        public virtual void PostInitialise()
+        {
+            if (m_enabled)
+                AddHTTPHandlers();
+        }
+
+        public virtual void Close()
+        {
+        }
+
+        public virtual string Name
+        {
+            get { return "RESTInterregionCommsModule"; }
+        }
+
+        public virtual bool IsSharedModule
+        {
+            get { return true; }
+        }
+
+        protected virtual void InitEach(Scene scene)
+        {
+            m_localBackend.Init(scene);
+            scene.RegisterModuleInterface<IInterregionCommsOut>(this);
+        }
+
+        protected virtual void InitOnce(Scene scene)
+        {
+            m_localBackend = new LocalInterregionComms();
+            m_commsManager = scene.CommsManager;
+            m_aScene = scene;
+            m_regionClient = new RegionToRegionClient(m_aScene);
+            m_thisIP = Util.GetHostFromDNS(scene.RegionInfo.ExternalHostName);
+        }
+
+        protected virtual void AddHTTPHandlers()
+        {
+            m_aScene.CommsManager.HttpServer.AddHTTPHandler("/agent/",  AgentHandler);
+            m_aScene.CommsManager.HttpServer.AddHTTPHandler("/object/", ObjectHandler);
+            m_aScene.CommsManager.HttpServer.AddHTTPHandler("/region/", RegionHandler);
+        }
+
+        #endregion /* IRegionModule */
+
+        #region IInterregionComms
+
+        /**
+         * Agent-related communications 
+         */
+
+        public bool SendCreateChildAgent(ulong regionHandle, AgentCircuitData aCircuit)
+        {
+            // Try local first
+            if (m_localBackend.SendCreateChildAgent(regionHandle, aCircuit))
+                return true;
+
+            // else do the remote thing
+            if (!m_localBackend.IsLocalRegion(regionHandle))
+            {
+                RegionInfo regInfo = m_commsManager.GridService.RequestNeighbourInfo(regionHandle);
+                if (regInfo != null)
+                {
+                    m_regionClient.SendUserInformation(regInfo, aCircuit);
+
+                    return m_regionClient.DoCreateChildAgentCall(regInfo, aCircuit, "None");
+                }
+                //else
+                //    m_log.Warn("[REST COMMS]: Region not found " + regionHandle);
+            }
+            return false;
+        }
+
+        public bool SendChildAgentUpdate(ulong regionHandle, AgentData cAgentData)
+        {
+            // Try local first
+            if (m_localBackend.SendChildAgentUpdate(regionHandle, cAgentData))
+                return true;
+
+            // else do the remote thing
+            if (!m_localBackend.IsLocalRegion(regionHandle))
+            {
+                RegionInfo regInfo = m_commsManager.GridService.RequestNeighbourInfo(regionHandle);
+                if (regInfo != null)
+                {
+                    return m_regionClient.DoChildAgentUpdateCall(regInfo, cAgentData);
+                }
+                //else
+                //    m_log.Warn("[REST COMMS]: Region not found " + regionHandle);
+            }
+            return false;
+
+        }
+
+        public bool SendChildAgentUpdate(ulong regionHandle, AgentPosition cAgentData)
+        {
+            // Try local first
+            if (m_localBackend.SendChildAgentUpdate(regionHandle, cAgentData))
+                return true;
+
+            // else do the remote thing
+            if (!m_localBackend.IsLocalRegion(regionHandle))
+            {
+                RegionInfo regInfo = m_commsManager.GridService.RequestNeighbourInfo(regionHandle);
+                if (regInfo != null)
+                {
+                    return m_regionClient.DoChildAgentUpdateCall(regInfo, cAgentData);
+                }
+                //else
+                //    m_log.Warn("[REST COMMS]: Region not found " + regionHandle);
+            }
+            return false;
+
+        }
+
+        public bool SendRetrieveRootAgent(ulong regionHandle, UUID id, out IAgentData agent)
+        {
+            // Try local first
+            if (m_localBackend.SendRetrieveRootAgent(regionHandle, id, out agent))
+                return true;
+
+            // else do the remote thing
+            if (!m_localBackend.IsLocalRegion(regionHandle))
+            {
+                RegionInfo regInfo = m_commsManager.GridService.RequestNeighbourInfo(regionHandle);
+                if (regInfo != null)
+                {
+                    return m_regionClient.DoRetrieveRootAgentCall(regInfo, id, out agent);
+                }
+                //else
+                //    m_log.Warn("[REST COMMS]: Region not found " + regionHandle);
+            }
+            return false;
+
+        }
+
+        public bool SendReleaseAgent(ulong regionHandle, UUID id, string uri)
+        {
+            // Try local first
+            if (m_localBackend.SendReleaseAgent(regionHandle, id, uri))
+                return true;
+
+            // else do the remote thing
+            return m_regionClient.DoReleaseAgentCall(regionHandle, id, uri);
+        }
+
+
+        public bool SendCloseAgent(ulong regionHandle, UUID id)
+        {
+            // Try local first
+            if (m_localBackend.SendCloseAgent(regionHandle, id))
+                return true;
+
+            // else do the remote thing
+            if (!m_localBackend.IsLocalRegion(regionHandle))
+            {
+                RegionInfo regInfo = m_commsManager.GridService.RequestNeighbourInfo(regionHandle);
+                if (regInfo != null)
+                {
+                    return m_regionClient.DoCloseAgentCall(regInfo, id);
+                }
+                //else
+                //    m_log.Warn("[REST COMMS]: Region not found " + regionHandle);
+            }
+            return false;
+        }
+
+        /**
+         * Object-related communications 
+         */
+
+        public bool SendCreateObject(ulong regionHandle, ISceneObject sog, bool isLocalCall)
+        {
+            // Try local first
+            if (m_localBackend.SendCreateObject(regionHandle, sog, true))
+            {
+                //m_log.Debug("[REST COMMS]: LocalBackEnd SendCreateObject succeeded");
+                return true;
+            }
+
+            // else do the remote thing
+            if (!m_localBackend.IsLocalRegion(regionHandle))
+            {
+                RegionInfo regInfo = m_commsManager.GridService.RequestNeighbourInfo(regionHandle);
+                if (regInfo != null)
+                {
+                    return m_regionClient.DoCreateObjectCall(regInfo, sog, m_aScene.m_allowScriptCrossings);
+                }
+                //else
+                //    m_log.Warn("[REST COMMS]: Region not found " + regionHandle);
+            }
+            return false;
+        }
+
+        public bool SendCreateObject(ulong regionHandle, UUID userID, UUID itemID)
+        {
+            // Not Implemented
+            return false;
+        }
+
+        /**
+         * Region-related communications 
+        */
+
+        public bool SendHelloNeighbour(ulong regionHandle, RegionInfo thisRegion)
+        {
+            // Try local first
+            if (m_localBackend.SendHelloNeighbour(regionHandle, thisRegion))
+            {
+                //m_log.Debug("[REST COMMS]: LocalBackEnd SendHelloNeighbour succeeded");
+                return true;
+            }
+
+            // else do the remote thing
+            RegionInfo regInfo = m_commsManager.GridService.RequestNeighbourInfo(regionHandle);
+            if ((regInfo != null) && 
+                // Don't remote-call this instance; that's a startup hickup
+                !((regInfo.ExternalHostName == thisRegion.ExternalHostName) && (regInfo.HttpPort == thisRegion.HttpPort)))
+            {
+                return m_regionClient.DoHelloNeighbourCall(regInfo, thisRegion);
+            }
+            //else
+            //    m_log.Warn("[REST COMMS]: Region not found " + regionHandle);
+            return false;
+        }
+
+        #endregion /* IInterregionComms */
+
+        #region Incoming calls from remote instances
+
+        /**
+         * Agent-related incoming calls
+         */
+
+        public Hashtable AgentHandler(Hashtable request)
+        {
+            //m_log.Debug("[CONNECTION DEBUGGING]: AgentHandler Called");
+
+            m_log.Debug("---------------------------");
+            m_log.Debug(" >> uri=" + request["uri"]);
+            m_log.Debug(" >> content-type=" + request["content-type"]);
+            m_log.Debug(" >> http-method=" + request["http-method"]);
+            m_log.Debug("---------------------------\n");
+
+            Hashtable responsedata = new Hashtable();
+            responsedata["content_type"] = "text/html";
+            responsedata["keepalive"] = false;
+
+
+            UUID agentID;
+            string action;
+            ulong regionHandle;
+            if (!GetParams((string)request["uri"], out agentID, out regionHandle, out action))
+            {
+                m_log.InfoFormat("[REST COMMS]: Invalid parameters for agent message {0}", request["uri"]);
+                responsedata["int_response_code"] = 404;
+                responsedata["str_response_string"] = "false";
+
+                return responsedata;
+            }
+
+            // Next, let's parse the verb
+            string method = (string)request["http-method"];
+            if (method.Equals("PUT"))
+            {
+                DoAgentPut(request, responsedata);
+                return responsedata;
+            }
+            else if (method.Equals("POST"))
+            {
+                DoAgentPost(request, responsedata, agentID);
+                return responsedata;
+            }
+            else if (method.Equals("GET"))
+            {
+                DoAgentGet(request, responsedata, agentID, regionHandle);
+                return responsedata;
+            }
+            else if (method.Equals("DELETE"))
+            {
+                DoAgentDelete(request, responsedata, agentID, action, regionHandle);
+                return responsedata;
+            }
+            else
+            {
+                m_log.InfoFormat("[REST COMMS]: method {0} not supported in agent message", method);
+                responsedata["int_response_code"] = 404;
+                responsedata["str_response_string"] = "false";
+
+                return responsedata;
+            }
+
+        }
+
+        protected virtual void DoAgentPost(Hashtable request, Hashtable responsedata, UUID id)
+        {
+            if (m_safemode)
+            {
+                // Authentication
+                string authority = string.Empty;
+                string authToken = string.Empty;
+                if (!GetAuthentication(request, out authority, out authToken))
+                {
+                    m_log.InfoFormat("[REST COMMS]: Authentication failed for agent message {0}", request["uri"]);
+                    responsedata["int_response_code"] = 403;
+                    responsedata["str_response_string"] = "Forbidden";
+                    return ;
+                }
+                if (!VerifyKey(id, authority, authToken))
+                {
+                    m_log.InfoFormat("[REST COMMS]: Authentication failed for agent message {0}", request["uri"]);
+                    responsedata["int_response_code"] = 403;
+                    responsedata["str_response_string"] = "Forbidden";
+                    return ;
+                }
+                m_log.DebugFormat("[REST COMMS]: Authentication succeeded for {0}", id);
+            }
+
+            OSDMap args = RegionClient.GetOSDMap((string)request["body"]);
+            if (args == null)
+            {
+                responsedata["int_response_code"] = 400;
+                responsedata["str_response_string"] = "false";
+                return;
+            }
+
+            // retrieve the regionhandle
+            ulong regionhandle = 0;
+            if (args["destination_handle"] != null)
+                UInt64.TryParse(args["destination_handle"].AsString(), out regionhandle);
+
+            AgentCircuitData aCircuit = new AgentCircuitData();
+            try
+            {
+                aCircuit.UnpackAgentCircuitData(args);
+            }
+            catch (Exception ex)
+            {
+                m_log.InfoFormat("[REST COMMS]: exception on unpacking ChildCreate message {0}", ex.Message);
+                return;
+            }
+
+            // This is the meaning of POST agent
+            m_regionClient.AdjustUserInformation(aCircuit);
+            bool result = m_localBackend.SendCreateChildAgent(regionhandle, aCircuit);
+
+            responsedata["int_response_code"] = 200;
+            responsedata["str_response_string"] = result.ToString();
+        }
+
+        protected virtual void DoAgentPut(Hashtable request, Hashtable responsedata)
+        {
+            OSDMap args = RegionClient.GetOSDMap((string)request["body"]);
+            if (args == null)
+            {
+                responsedata["int_response_code"] = 400;
+                responsedata["str_response_string"] = "false";
+                return;
+            }
+
+            // retrieve the regionhandle
+            ulong regionhandle = 0;
+            if (args["destination_handle"] != null)
+                UInt64.TryParse(args["destination_handle"].AsString(), out regionhandle);
+
+            string messageType;
+            if (args["message_type"] != null)
+                messageType = args["message_type"].AsString();
+            else
+            {
+                m_log.Warn("[REST COMMS]: Agent Put Message Type not found. ");
+                messageType = "AgentData";
+            }
+
+            bool result = true;
+            if ("AgentData".Equals(messageType))
+            {
+                AgentData agent = new AgentData();
+                try
+                {
+                    agent.Unpack(args);
+                }
+                catch (Exception ex)
+                {
+                    m_log.InfoFormat("[REST COMMS]: exception on unpacking ChildAgentUpdate message {0}", ex.Message);
+                    return;
+                }
+
+                //agent.Dump();
+                // This is one of the meanings of PUT agent
+                result = m_localBackend.SendChildAgentUpdate(regionhandle, agent);
+
+            }
+            else if ("AgentPosition".Equals(messageType))
+            {
+                AgentPosition agent = new AgentPosition();
+                try
+                {
+                    agent.Unpack(args);
+                }
+                catch (Exception ex)
+                {
+                    m_log.InfoFormat("[REST COMMS]: exception on unpacking ChildAgentUpdate message {0}", ex.Message);
+                    return;
+                }
+                //agent.Dump();
+                // This is one of the meanings of PUT agent
+                result = m_localBackend.SendChildAgentUpdate(regionhandle, agent);
+
+            }
+
+            responsedata["int_response_code"] = 200;
+            responsedata["str_response_string"] = result.ToString();
+        }
+
+        protected virtual void DoAgentGet(Hashtable request, Hashtable responsedata, UUID id, ulong regionHandle)
+        {
+            IAgentData agent = null;
+            bool result = m_localBackend.SendRetrieveRootAgent(regionHandle, id, out agent);
+            OSDMap map = null;
+            if (result)
+            {
+                if (agent != null) // just to make sure
+                {
+                    map = agent.Pack();
+                    string strBuffer = "";
+                    try
+                    {
+                        strBuffer = OSDParser.SerializeJsonString(map);
+                    }
+                    catch (Exception e)
+                    {
+                        m_log.WarnFormat("[REST COMMS]: Exception thrown on serialization of CreateObject: {0}", e.Message);
+                        // ignore. buffer will be empty, caller should check.
+                    }
+
+                    responsedata["content_type"] = "application/json";
+                    responsedata["int_response_code"] = 200;
+                    responsedata["str_response_string"] = strBuffer;
+                }
+                else
+                {
+                    responsedata["int_response_code"] = 500;
+                    responsedata["str_response_string"] = "Internal error";
+                }
+            }
+            else
+            {
+                responsedata["int_response_code"] = 404;
+                responsedata["str_response_string"] = "Not Found";
+            }
+        }
+
+        protected virtual void DoAgentDelete(Hashtable request, Hashtable responsedata, UUID id, string action, ulong regionHandle)
+        {
+            //m_log.Debug(" >>> DoDelete action:" + action + "; regionHandle:" + regionHandle);
+            
+            if (action.Equals("release"))
+                m_localBackend.SendReleaseAgent(regionHandle, id, "");
+            else
+                m_localBackend.SendCloseAgent(regionHandle, id);
+
+            responsedata["int_response_code"] = 200;
+            responsedata["str_response_string"] = "OpenSim agent " + id.ToString();
+
+            m_log.Debug("[REST COMMS]: Agent Deleted.");
+        }
+
+        /**
+         * Object-related incoming calls
+         */
+
+        public Hashtable ObjectHandler(Hashtable request)
+        {
+            m_log.Debug("[CONNECTION DEBUGGING]: ObjectHandler Called");
+
+            m_log.Debug("---------------------------");
+            m_log.Debug(" >> uri=" + request["uri"]);
+            m_log.Debug(" >> content-type=" + request["content-type"]);
+            m_log.Debug(" >> http-method=" + request["http-method"]);
+            m_log.Debug("---------------------------\n");
+
+            Hashtable responsedata = new Hashtable();
+            responsedata["content_type"] = "text/html";
+
+            UUID objectID;
+            string action;
+            ulong regionHandle;
+            if (!GetParams((string)request["uri"], out objectID, out regionHandle, out action))
+            {
+                m_log.InfoFormat("[REST COMMS]: Invalid parameters for object message {0}", request["uri"]);
+                responsedata["int_response_code"] = 404;
+                responsedata["str_response_string"] = "false";
+
+                return responsedata;
+            }
+
+            // Next, let's parse the verb
+            string method = (string)request["http-method"];
+            if (method.Equals("POST"))
+            {
+                DoObjectPost(request, responsedata, regionHandle);
+                return responsedata;
+            }
+            else if (method.Equals("PUT"))
+            {
+                DoObjectPut(request, responsedata, regionHandle);
+                return responsedata;
+            }
+            //else if (method.Equals("DELETE"))
+            //{
+            //    DoObjectDelete(request, responsedata, agentID, action, regionHandle);
+            //    return responsedata;
+            //}
+            else
+            {
+                m_log.InfoFormat("[REST COMMS]: method {0} not supported in object message", method);
+                responsedata["int_response_code"] = 404;
+                responsedata["str_response_string"] = "false";
+
+                return responsedata;
+            }
+
+        }
+
+        protected virtual void DoObjectPost(Hashtable request, Hashtable responsedata, ulong regionhandle)
+        {
+            OSDMap args = RegionClient.GetOSDMap((string)request["body"]);
+            if (args == null)
+            {
+                responsedata["int_response_code"] = 400;
+                responsedata["str_response_string"] = "false";
+                return;
+            }
+
+            string sogXmlStr = "", extraStr = "", stateXmlStr = "";
+            if (args["sog"] != null)
+                sogXmlStr = args["sog"].AsString();
+            if (args["extra"] != null)
+                extraStr = args["extra"].AsString();
+
+            UUID regionID = m_localBackend.GetRegionID(regionhandle);
+            SceneObjectGroup sog = null; 
+            try
+            {
+                sog = new SceneObjectGroup(sogXmlStr);
+                sog.ExtraFromXmlString(extraStr);
+            }
+            catch (Exception ex)
+            {
+                m_log.InfoFormat("[REST COMMS]: exception on deserializing scene object {0}", ex.Message);
+                responsedata["int_response_code"] = 400;
+                responsedata["str_response_string"] = "false";
+                return;
+            }
+
+            if ((args["state"] != null) && m_aScene.m_allowScriptCrossings)
+            {
+                stateXmlStr = args["state"].AsString();
+                if (stateXmlStr != "")
+                {
+                    try
+                    {
+                        sog.SetState(stateXmlStr, regionID);
+                    }
+                    catch (Exception ex)
+                    {
+                        m_log.InfoFormat("[REST COMMS]: exception on setting state for scene object {0}", ex.Message);
+
+                    }
+                }
+            }
+            // This is the meaning of POST object
+            bool result = m_localBackend.SendCreateObject(regionhandle, sog, false);
+
+            responsedata["int_response_code"] = 200;
+            responsedata["str_response_string"] = result.ToString();
+        }
+
+        protected virtual void DoObjectPut(Hashtable request, Hashtable responsedata, ulong regionhandle)
+        {
+            OSDMap args = RegionClient.GetOSDMap((string)request["body"]);
+            if (args == null)
+            {
+                responsedata["int_response_code"] = 400;
+                responsedata["str_response_string"] = "false";
+                return;
+            }
+
+            UUID userID = UUID.Zero, itemID = UUID.Zero;
+            if (args["userid"] != null)
+                userID = args["userid"].AsUUID();
+            if (args["itemid"] != null)
+                itemID = args["itemid"].AsUUID();
+
+            //UUID regionID = m_localBackend.GetRegionID(regionhandle);
+
+            // This is the meaning of PUT object
+            bool result = m_localBackend.SendCreateObject(regionhandle, userID, itemID);
+
+            responsedata["int_response_code"] = 200;
+            responsedata["str_response_string"] = result.ToString();
+        }
+
+        /*
+         * Region-related incoming calls
+         * 
+         */
+
+        public Hashtable RegionHandler(Hashtable request)
+        {
+            //m_log.Debug("[CONNECTION DEBUGGING]: RegionHandler Called");
+
+            //m_log.Debug("---------------------------");
+            //m_log.Debug(" >> uri=" + request["uri"]);
+            //m_log.Debug(" >> content-type=" + request["content-type"]);
+            //m_log.Debug(" >> http-method=" + request["http-method"]);
+            //m_log.Debug("---------------------------\n");
+
+            Hashtable responsedata = new Hashtable();
+            responsedata["content_type"] = "text/html";
+
+            UUID regionID;
+            string action;
+            ulong regionHandle;
+            if (!GetParams((string)request["uri"], out regionID, out regionHandle, out action))
+            {
+                m_log.InfoFormat("[REST COMMS]: Invalid parameters for object message {0}", request["uri"]);
+                responsedata["int_response_code"] = 404;
+                responsedata["str_response_string"] = "false";
+
+                return responsedata;
+            }
+
+            // Next, let's parse the verb
+            string method = (string)request["http-method"];
+            if (method.Equals("POST"))
+            {
+                DoRegionPost(request, responsedata, regionID);
+                return responsedata;
+            }
+            //else if (method.Equals("PUT"))
+            //{
+            //    DoRegionPut(request, responsedata, regionID);
+            //    return responsedata;
+            //}
+            //else if (method.Equals("DELETE"))
+            //{
+            //    DoRegionDelete(request, responsedata, regiontID);
+            //    return responsedata;
+            //}
+            else
+            {
+                m_log.InfoFormat("[REST COMMS]: method {0} not supported in region message", method);
+                responsedata["int_response_code"] = 404;
+                responsedata["str_response_string"] = "false";
+
+                return responsedata;
+            }
+
+        }
+
+        protected virtual void DoRegionPost(Hashtable request, Hashtable responsedata, UUID id)
+        {
+            OSDMap args = RegionClient.GetOSDMap((string)request["body"]);
+            if (args == null)
+            {
+                responsedata["int_response_code"] = 400;
+                responsedata["str_response_string"] = "false";
+                return;
+            }
+
+            // retrieve the regionhandle
+            ulong regionhandle = 0;
+            if (args["destination_handle"] != null)
+                UInt64.TryParse(args["destination_handle"].AsString(), out regionhandle);
+
+            RegionInfo aRegion = new RegionInfo();
+            try
+            {
+                aRegion.UnpackRegionInfoData(args);
+            }
+            catch (Exception ex)
+            {
+                m_log.InfoFormat("[REST COMMS]: exception on unpacking HelloNeighbour message {0}", ex.Message);
+                return;
+            }
+
+            // This is the meaning of POST region
+            bool result = m_localBackend.SendHelloNeighbour(regionhandle, aRegion);
+
+            responsedata["int_response_code"] = 200;
+            responsedata["str_response_string"] = result.ToString();
+        }
+
+
+        #endregion 
+
+        #region Misc
+
+
+        /// <summary>
+        /// Extract the param from an uri.
+        /// </summary>
+        /// <param name="uri">Something like this: /agent/uuid/ or /agent/uuid/handle/release</param>
+        /// <param name="uri">uuid on uuid field</param>
+        /// <param name="action">optional action</param>
+        public static bool GetParams(string uri, out UUID uuid, out ulong regionHandle, out string action)
+        {
+            uuid = UUID.Zero;
+            action = "";
+            regionHandle = 0;
+
+            uri = uri.Trim(new char[] { '/' });
+            string[] parts = uri.Split('/');
+            if (parts.Length <= 1)
+            {
+                return false;
+            }
+            else
+            {
+                if (!UUID.TryParse(parts[1], out uuid))
+                    return false;
+
+                if (parts.Length >= 3)
+                    UInt64.TryParse(parts[2], out regionHandle);
+                if (parts.Length >= 4)
+                    action = parts[3];
+                
+                return true;
+            }
+        }
+
+        public static bool GetAuthentication(Hashtable request, out string authority, out string authKey)
+        {
+            authority = string.Empty;
+            authKey = string.Empty;
+
+            Uri authUri;
+            Hashtable headers = (Hashtable)request["headers"];
+
+            // Authorization keys look like this:
+            // http://orgrid.org:8002/<uuid>
+            if (headers.ContainsKey("authorization") && (string)headers["authorization"] != "None")
+            {
+                if (Uri.TryCreate((string)headers["authorization"], UriKind.Absolute, out authUri))
+                {
+                    authority = authUri.Authority;
+                    authKey = authUri.PathAndQuery.Trim('/');
+                    m_log.DebugFormat("[REST COMMS]: Got authority {0} and key {1}", authority, authKey);
+                    return true;
+                }
+                else
+                    m_log.Debug("[REST COMMS]: Wrong format for Authorization header: " + (string)headers["authorization"]);
+            }
+            else
+                m_log.Debug("[REST COMMS]: Authorization header not found");
+
+            return false;
+        }
+
+        bool VerifyKey(UUID userID, string authority, string key)
+        {
+            string[] parts = authority.Split(':');
+            IPAddress ipaddr = IPAddress.None;
+            uint port = 0;
+            if (parts.Length <= 2)
+                ipaddr = Util.GetHostFromDNS(parts[0]);
+            if (parts.Length == 2)
+                UInt32.TryParse(parts[1], out port);
+
+            // local authority (standalone), local call
+            if (m_thisIP.Equals(ipaddr) && (m_aScene.RegionInfo.HttpPort == port))
+                return ((IAuthentication)m_aScene.CommsManager.UserAdminService).VerifyKey(userID, key);
+            // remote call
+            else
+                return AuthClient.VerifyKey("http://" + authority, userID, key);
+        }
+
+
+        #endregion Misc 
+
+        protected class RegionToRegionClient : RegionClient
+        {
+            Scene m_aScene = null;
+
+            public RegionToRegionClient(Scene s)
+            {
+                m_aScene = s;
+            }
+
+            public override ulong GetRegionHandle(ulong handle)
+            {
+                if (m_aScene.SceneGridService is HGSceneCommunicationService)
+                    return ((HGSceneCommunicationService)(m_aScene.SceneGridService)).m_hg.FindRegionHandle(handle);
+
+                return handle;
+            }
+
+            public override bool IsHyperlink(ulong handle)
+            {
+                if (m_aScene.SceneGridService is HGSceneCommunicationService)
+                    return ((HGSceneCommunicationService)(m_aScene.SceneGridService)).m_hg.IsHyperlinkRegion(handle);
+
+                return false;
+            }
+
+            public override void SendUserInformation(RegionInfo regInfo, AgentCircuitData aCircuit)
+            {
+                try
+                {
+                    if (m_aScene.SceneGridService is HGSceneCommunicationService)
+                    {
+                        ((HGSceneCommunicationService)(m_aScene.SceneGridService)).m_hg.SendUserInformation(regInfo, aCircuit);
+                    }
+                }
+                catch // Bad cast
+                { }
+
+            }
+
+            public override void AdjustUserInformation(AgentCircuitData aCircuit)
+            {
+                if (m_aScene.SceneGridService is HGSceneCommunicationService)
+                    ((HGSceneCommunicationService)(m_aScene.SceneGridService)).m_hg.AdjustUserInformation(aCircuit);
+            }
+        }
+
+    }
+}