OpenSim-Test/OpenSim/ApplicationPlugins/RemoteController/RemoteAdminPlugin.cs

/*
 * 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.Timers;
using OpenMetaverse;
using log4net;
using Nini.Config;
using Nwc.XmlRpc;
using OpenSim.Framework;
using OpenSim.Framework.Servers;
using OpenSim.Region.Environment.Interfaces;
using OpenSim.Region.Environment.Modules.World.Terrain;
using OpenSim.Region.Environment.Scenes;

namespace OpenSim.ApplicationPlugins.RemoteController
{
    public class RemoteAdminPlugin : IApplicationPlugin
    {
        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);

        private OpenSimBase m_app;
        private BaseHttpServer m_httpd;
        private IConfig m_config;
        private IConfigSource m_configSource;
        private string requiredPassword = String.Empty;

        // TODO: required by IPlugin, but likely not at all right
        string m_name = "RemoteAdminPlugin";
        string m_version = "0.0";

        public string Version { get { return m_version; } }
        public string Name { get { return m_name; } }

        public void Initialise()
        {
            m_log.Info("[RADMIN]: " + Name + " cannot be default-initialized!");
            throw new PluginNotInitialisedException (Name);
        }


        public void Initialise(OpenSimBase openSim)
        {
            m_configSource = openSim.ConfigSource.Source;
            try
            {
                if (m_configSource.Configs["RemoteAdmin"] == null ||
                    !m_configSource.Configs["RemoteAdmin"].GetBoolean("enabled", false))
                {
                    // No config or disabled
                }
                else
                {
                    m_config = m_configSource.Configs["RemoteAdmin"];
                    m_log.Info("[RADMIN]: Remote Admin Plugin Enabled");
                    requiredPassword = m_config.GetString("access_password", String.Empty);

                    m_app = openSim;
                    m_httpd = openSim.HttpServer;

                    m_httpd.AddXmlRPCHandler("admin_create_region", XmlRpcCreateRegionMethod, false);
                    m_httpd.AddXmlRPCHandler("admin_delete_region", XmlRpcDeleteRegionMethod, false);
                    m_httpd.AddXmlRPCHandler("admin_shutdown", XmlRpcShutdownMethod, false);
                    m_httpd.AddXmlRPCHandler("admin_broadcast", XmlRpcAlertMethod, false);
                    m_httpd.AddXmlRPCHandler("admin_restart", XmlRpcRestartMethod, false);
                    m_httpd.AddXmlRPCHandler("admin_load_heightmap", XmlRpcLoadHeightmapMethod, false);
                    m_httpd.AddXmlRPCHandler("admin_create_user", XmlRpcCreateUserMethod, false);
                    //This handler creates a user with a email, 
                    m_httpd.AddXmlRPCHandler("admin_create_user_email", XmlRpcCreateUserMethodEmail, false);
                    m_httpd.AddXmlRPCHandler("admin_exists_user", XmlRpcUserExistsMethod, false);
                    m_httpd.AddXmlRPCHandler("admin_update_user", XmlRpcUpdateUserAccountMethod, false);
                    m_httpd.AddXmlRPCHandler("admin_load_xml", XmlRpcLoadXMLMethod, false);
                    m_httpd.AddXmlRPCHandler("admin_save_xml", XmlRpcSaveXMLMethod, false);
                    m_httpd.AddXmlRPCHandler("admin_load_oar", XmlRpcLoadOARMethod, false);
                    m_httpd.AddXmlRPCHandler("admin_save_oar", XmlRpcSaveOARMethod, false);
                    m_httpd.AddXmlRPCHandler("admin_region_query", XmlRpcRegionQueryMethod, false);
                }
            }
            catch (NullReferenceException)
            {
                // Ignore.
            }
        }

        public XmlRpcResponse XmlRpcRestartMethod(XmlRpcRequest request)
        {
            XmlRpcResponse response = new XmlRpcResponse();
            Hashtable responseData = new Hashtable();

            try {
                Hashtable requestData = (Hashtable) request.Params[0];

                m_log.Info("[RADMIN]: Request to restart Region.");
                checkStringParameters(request, new string[] { "password", "regionID" });

                if (requiredPassword != String.Empty &&
                    (!requestData.Contains("password") || (string)requestData["password"] != requiredPassword))
                {
                    throw new Exception("wrong password");
                }

                UUID regionID = new UUID((string) requestData["regionID"]);

                responseData["accepted"] = "true";
                responseData["success"] = "true";
                response.Value = responseData;

                Scene rebootedScene;

                if (!m_app.SceneManager.TryGetScene(regionID, out rebootedScene))
                    throw new Exception("region not found");

                responseData["rebooting"] = "true";
                response.Value = responseData;
                rebootedScene.Restart(30);
            }
            catch(Exception e)
            {
                m_log.ErrorFormat("[RADMIN]: Restart region: failed: {0}", e.Message);
                m_log.DebugFormat("[RADMIN]: Restart region: failed: {0}", e.ToString());
                responseData["accepted"] = "false";
                responseData["success"] = "false";
                responseData["rebooting"] = "false";
                responseData["error"] = e.Message;
                response.Value = responseData;
            }

            return response;
        }

        public XmlRpcResponse XmlRpcAlertMethod(XmlRpcRequest request)
        {
            XmlRpcResponse response = new XmlRpcResponse();
            Hashtable responseData = new Hashtable();

            try {
                Hashtable requestData = (Hashtable) request.Params[0];

                checkStringParameters(request, new string[] { "password", "message" });

                if (requiredPassword != String.Empty &&
                    (!requestData.Contains("password") || (string) requestData["password"] != requiredPassword))
                    throw new Exception("wrong password");

                string message = (string) requestData["message"];
                m_log.InfoFormat("[RADMIN]: Broadcasting: {0}", message);

                responseData["accepted"] = "true";
                responseData["success"] = "true";
                response.Value = responseData;

                m_app.SceneManager.SendGeneralMessage(message);
            }
            catch(Exception e)
            {
                m_log.ErrorFormat("[RADMIN]: Broadcasting: failed: {0}", e.Message);
                m_log.DebugFormat("[RADMIN]: Broadcasting: failed: {0}", e.ToString());

                responseData["accepted"] = "false";
                responseData["success"] = "false";
                responseData["error"] = e.Message;
                response.Value = responseData;
            }

            return response;
        }

        public XmlRpcResponse XmlRpcLoadHeightmapMethod(XmlRpcRequest request)
        {
            XmlRpcResponse response = new XmlRpcResponse();
            Hashtable responseData = new Hashtable();

            try {
                Hashtable requestData = (Hashtable)request.Params[0];

                m_log.DebugFormat("[RADMIN]: Load Terrain: XmlRpc {0}", request.ToString());
                // foreach (string k in requestData.Keys)
                // {
                //     m_log.DebugFormat("[RADMIN]: Load Terrain: XmlRpc {0}: >{1}< {2}",
                //                       k, (string)requestData[k], ((string)requestData[k]).Length);
                // }

                checkStringParameters(request, new string[] { "password", "filename", "regionid"});

                if (requiredPassword != String.Empty &&
                    (!requestData.Contains("password") || (string)requestData["password"] != requiredPassword))
                    throw new Exception("wrong password");

                string file = (string)requestData["filename"];
                UUID regionID = (UUID)(string) requestData["regionid"];
                m_log.InfoFormat("[RADMIN]: Terrain Loading: {0}", file);

                responseData["accepted"] = "true";

                Scene region = null;

                if (!m_app.SceneManager.TryGetScene(regionID, out region))
                    throw new Exception("1: unable to get a scene with that name");

                ITerrainModule terrainModule = region.RequestModuleInterface<ITerrainModule>();
                if (null == terrainModule) throw new Exception("terrain module not available");
                terrainModule.LoadFromFile(file);

                responseData["success"] = "true";

                response.Value = responseData;
            }
            catch (Exception e)
            {
                m_log.ErrorFormat("[RADMIN] Terrain Loading: failed: {0}", e.Message);
                m_log.DebugFormat("[RADMIN] Terrain Loading: failed: {0}", e.ToString());

                responseData["success"] = "false";
                responseData["error"] = e.Message;
            }

            return response;
        }

        public XmlRpcResponse XmlRpcShutdownMethod(XmlRpcRequest request)
        {
            m_log.Info("[RADMIN]: Received Shutdown Administrator Request");
            XmlRpcResponse response = new XmlRpcResponse();
            Hashtable responseData = new Hashtable();

            try {
                Hashtable requestData = (Hashtable) request.Params[0];

                if (requiredPassword != String.Empty &&
                    (!requestData.Contains("password") || (string) requestData["password"] != requiredPassword))
                    throw new Exception("wrong password");

                responseData["accepted"] = "true";
                response.Value = responseData;

                int timeout = 2000;

                if (requestData.ContainsKey("shutdown") &&
                    ((string) requestData["shutdown"] == "delayed") &&
                    requestData.ContainsKey("milliseconds"))
                {
                    timeout = (Int32) requestData["milliseconds"];
                    m_app.SceneManager.SendGeneralMessage("Region is going down in " + ((int) (timeout/1000)).ToString() +
                                                          " second(s). Please save what you are doing and log out.");
                }
                else
                {
                    m_app.SceneManager.SendGeneralMessage("Region is going down now.");
                }

                // Perform shutdown
                Timer shutdownTimer = new Timer(timeout); // Wait before firing
                shutdownTimer.AutoReset = false;
                shutdownTimer.Elapsed += new ElapsedEventHandler(shutdownTimer_Elapsed);
                shutdownTimer.Start();

                responseData["success"] = "true";
            }
            catch (Exception e)
            {
                m_log.ErrorFormat("[RADMIN] Shutdown: failed: {0}", e.Message);
                m_log.DebugFormat("[RADMIN] Shutdown: failed: {0}", e.ToString());

                responseData["accepted"] = "false";
                responseData["error"] = e.Message;

                response.Value = responseData;
            }
            return response;
        }

        private void shutdownTimer_Elapsed(object sender, ElapsedEventArgs e)
        {
            m_app.Shutdown();
        }


        private static void checkStringParameters(XmlRpcRequest request, string[] param)
        {
            Hashtable requestData = (Hashtable) request.Params[0];
            foreach (string p in param)
            {
                if (!requestData.Contains(p))
                    throw new Exception(String.Format("missing string parameter {0}", p));
                if (String.IsNullOrEmpty((string)requestData[p]))
                    throw new Exception(String.Format("parameter {0} is empty", p));
            }
        }

        private static void checkIntegerParams(XmlRpcRequest request, string[] param)
        {
            Hashtable requestData = (Hashtable) request.Params[0];
            foreach (string p in param)
            {
                if (!requestData.Contains(p))
                    throw new Exception(String.Format("missing integer parameter {0}", p));
            }
        }

        /// <summary>
        /// Create a new region.
        /// <summary>
        /// <param name="request">incoming XML RPC request</param>
        /// <remarks>
        /// XmlRpcCreateRegionMethod takes the following XMLRPC
        /// parameters
        /// <list type="table">
        /// <listheader><term>parameter name</term><description>description</description></listheader>
        /// <item><term>password</term>
        ///       <description>admin password as set in OpenSim.ini</description></item>
        /// <item><term>region_name</term>
        ///       <description>desired region name</description></item>
        /// <item><term>region_id</term>
        ///       <description>(optional) desired region UUID</description></item>
        /// <item><term>region_x</term>
        ///       <description>desired region X coordinate (integer)</description></item>
        /// <item><term>region_y</term>
        ///       <description>desired region Y coordinate (integer)</description></item>
        /// <item><term>region_master_first</term>
        ///       <description>firstname of region master</description></item>
        /// <item><term>region_master_last</term>
        ///       <description>lastname of region master</description></item>
        /// <item><term>region_master_uuid</term>
        ///       <description>explicit UUID to use for master avatar (optional)</description></item>
        /// <item><term>listen_ip</term>
        ///       <description>internal IP address (dotted quad)</description></item>
        /// <item><term>listen_port</term>
        ///       <description>internal port (integer)</description></item>
        /// <item><term>external_address</term>
        ///       <description>external IP address</description></item>
        /// <item><term>persist</term>
        ///       <description>if true, persist the region info
        ///       ('true' or 'false')</description></item>
        /// </list>
        ///
        /// XmlRpcCreateRegionMethod returns
        /// <list type="table">
        /// <listheader><term>name</term><description>description</description></listheader>
        /// <item><term>success</term>
        ///       <description>true or false</description></item>
        /// <item><term>error</term>
        ///       <description>error message if success is false</description></item>
        /// <item><term>region_uuid</term>
        ///       <description>UUID of the newly created region</description></item>
        /// <item><term>region_name</term>
        ///       <description>name of the newly created region</description></item>
        /// </list>
        /// </remarks>
        public XmlRpcResponse XmlRpcCreateRegionMethod(XmlRpcRequest request)
        {
            m_log.Info("[RADMIN]: CreateRegion: new request");
            XmlRpcResponse response = new XmlRpcResponse();
            Hashtable responseData = new Hashtable();

            lock (this) 
            {
                int m_regionLimit = m_config.GetInt("region_limit", 0);

                try {
                    Hashtable requestData = (Hashtable) request.Params[0];

                    checkStringParameters(request, new string[] { "password",
                                                                  "region_name",
                                                                  "region_master_first", "region_master_last",
                                                                  "region_master_password",
                                                                  "listen_ip", "external_address"});
                    checkIntegerParams(request, new string[] {"region_x", "region_y", "listen_port"});

                    // check password
                    if (!String.IsNullOrEmpty(requiredPassword) &&
                        (string)requestData["password"] != requiredPassword) throw new Exception("wrong password");

                    // check whether we still have space left (iff we are using limits)
                    if (m_regionLimit != 0 && m_app.SceneManager.Scenes.Count >= m_regionLimit)
                        throw new Exception(String.Format("cannot instantiate new region, server capacity {0} already reached; delete regions first", m_regionLimit));


                    // extract or generate region ID now
                    Scene scene = null;
                    UUID regionID = UUID.Zero;
                    if (requestData.ContainsKey("region_id") &&
                        !String.IsNullOrEmpty((string)requestData["region_id"]))
                    {
                        regionID = (UUID)(string)requestData["region_id"];
                        if (m_app.SceneManager.TryGetScene(regionID, out scene))
                            throw new Exception(String.Format("region UUID already in use by region {0}, UUID {1}, <{2},{3}>",
                                                              scene.RegionInfo.RegionName, scene.RegionInfo.RegionID,
                                                              scene.RegionInfo.RegionLocX, scene.RegionInfo.RegionLocY));
                    }
                    else
                    {
                        regionID = UUID.Random();
                        m_log.DebugFormat("[RADMIN] CreateRegion: new region UUID {0}", regionID);
                    }

                    // create volatile or persistent region info
                    RegionInfo region = new RegionInfo();

                    region.RegionID = regionID;
                    region.RegionName = (string) requestData["region_name"];
                    region.RegionLocX = Convert.ToUInt32(requestData["region_x"]);
                    region.RegionLocY = Convert.ToUInt32(requestData["region_y"]);

                    // check for collisions: region name, region UUID,
                    // region location
                    if (m_app.SceneManager.TryGetScene(region.RegionName, out scene))
                        throw new Exception(String.Format("region name already in use by region {0}, UUID {1}, <{2},{3}>",
                                                          scene.RegionInfo.RegionName, scene.RegionInfo.RegionID,
                                                          scene.RegionInfo.RegionLocX, scene.RegionInfo.RegionLocY));

                    if (m_app.SceneManager.TryGetScene(region.RegionLocX, region.RegionLocY, out scene))
                        throw new Exception(String.Format("region location <{0},{1}> already in use by region {2}, UUID {3}, <{4},{5}>",
                                                          region.RegionLocX, region.RegionLocY,
                                                          scene.RegionInfo.RegionName, scene.RegionInfo.RegionID,
                                                          scene.RegionInfo.RegionLocX, scene.RegionInfo.RegionLocY));

                    region.InternalEndPoint =
                        new IPEndPoint(IPAddress.Parse((string) requestData["listen_ip"]), 0);

                    region.InternalEndPoint.Port = Convert.ToInt32(requestData["listen_port"]);
                    if (0 == region.InternalEndPoint.Port) throw new Exception("listen_port is 0");
                    if (m_app.SceneManager.TryGetScene(region.InternalEndPoint, out scene))
                        throw new Exception(String.Format("region internal IP {0} and port {1} already in use by region {2}, UUID {3}, <{4},{5}>",
                                                          region.InternalEndPoint.Address,
                                                          region.InternalEndPoint.Port,
                                                          scene.RegionInfo.RegionName, scene.RegionInfo.RegionID,
                                                          scene.RegionInfo.RegionLocX, scene.RegionInfo.RegionLocY));


                    region.ExternalHostName = (string)requestData["external_address"];

                    string masterFirst = (string)requestData["region_master_first"];
                    string masterLast = (string)requestData["region_master_last"];
                    string masterPassword = (string)requestData["region_master_password"];

                    UUID userID = UUID.Zero;
                    if (requestData.ContainsKey("region_master_uuid"))
                    {
                        // ok, client wants us to use an explicit UUID
                        // regardless of what the avatar name provided
                        userID = new UUID((string)requestData["region_master_uuid"]);
                    }
                    else
                    {
                        // no client supplied UUID: look it up...
                        UserProfileData userProfile = m_app.CommunicationsManager.UserService.GetUserProfile(masterFirst, masterLast);
                        if (null == userProfile) 
                        {
                            m_log.InfoFormat("master avatar does not exist, creating it");
                            // ...or create new user
                            userID = m_app.CommunicationsManager.UserAdminService.AddUser(
                                masterFirst, masterLast, masterPassword, "", region.RegionLocX, region.RegionLocY);
                            
                            if (userID == UUID.Zero) throw new Exception(String.Format("failed to create new user {0} {1}",
                                                                                       masterFirst, masterLast));
                        }
                        else
                        {
                            userID = userProfile.ID;
                        }
                    }

                    region.MasterAvatarFirstName = masterFirst;
                    region.MasterAvatarLastName = masterLast;
                    region.MasterAvatarSandboxPassword = masterPassword;
                    region.MasterAvatarAssignedUUID = userID;

                    bool persist = Convert.ToBoolean((string)requestData["persist"]);
                    if (persist)
                    {
                        // default place for region XML files is in the
                        // Regions directory of the config dir (aka /bin)
                        string regionConfigPath = Path.Combine(Util.configDir(), "Regions");
                        try
                        {
                            // OpenSim.ini can specify a different regions dir
                            IConfig startupConfig = (IConfig)m_configSource.Configs["Startup"];
                            regionConfigPath = startupConfig.GetString("regionload_regionsdir", regionConfigPath).Trim();
                        }
                        catch (Exception)
                        {
                            // No INI setting recorded.
                        }
                        string regionXmlPath = Path.Combine(regionConfigPath,
                                                            String.Format(m_config.GetString("region_file_template", "{0}x{1}-{2}.xml"),
                                                                          region.RegionLocX.ToString(),
                                                                          region.RegionLocY.ToString(),
                                                                          regionID.ToString(),
                                                                          region.InternalEndPoint.Port.ToString(),
                                                                          region.RegionName.Replace(" ", "_").Replace(":", "_").Replace("/", "_")));
                        m_log.DebugFormat("[RADMIN] CreateRegion: persisting region {0} to {1}",
                                          region.RegionID, regionXmlPath);
                        region.SaveRegionToFile("dynamic region", regionXmlPath);
                    }

                    m_app.CreateRegion(region);

                    responseData["success"]     = "true";
                    responseData["region_name"] = region.RegionName;
                    responseData["region_uuid"] = region.RegionID.ToString();

                    response.Value = responseData;
                }
                catch (Exception e)
                {
                    m_log.ErrorFormat("[RADMIN] CreateRegion: failed {0}", e.Message);
                    m_log.DebugFormat("[RADMIN] CreateRegion: failed {0}", e.ToString());

                    responseData["success"] = "false";
                    responseData["error"] = e.Message;

                    response.Value = responseData;
                }
                return response;
            }
        }

        /// <summary>
        /// Delete a new region.
        /// <summary>
        /// <param name="request">incoming XML RPC request</param>
        /// <remarks>
        /// XmlRpcCreateRegionMethod takes the following XMLRPC
        /// parameters
        /// <list type="table">
        /// <listheader><term>parameter name</term><description>description</description></listheader>
        /// <item><term>password</term>
        ///       <description>admin password as set in OpenSim.ini</description></item>
        /// <item><term>region_name</term>
        ///       <description>desired region name</description></item>
        /// <item><term>region_id</term>
        ///       <description>(optional) desired region UUID</description></item>
        /// </list>
        ///
        /// XmlRpcCreateRegionMethod returns
        /// <list type="table">
        /// <listheader><term>name</term><description>description</description></listheader>
        /// <item><term>success</term>
        ///       <description>true or false</description></item>
        /// <item><term>error</term>
        ///       <description>error message if success is false</description></item>
        /// </list>
        /// </remarks>
        public XmlRpcResponse XmlRpcDeleteRegionMethod(XmlRpcRequest request)
        {
            m_log.Info("[RADMIN]: DeleteRegion: new request");
            XmlRpcResponse response = new XmlRpcResponse();
            Hashtable responseData = new Hashtable();

            lock (this) 
            {
                try {
                    Hashtable requestData = (Hashtable) request.Params[0];
                    checkStringParameters(request, new string[] {"password", "region_name"});

                    Scene scene = null;
                    string regionName = (string)requestData["region_name"];
                    if (!m_app.SceneManager.TryGetScene(regionName, out scene))
                        throw new Exception(String.Format("region \"{0}\" does not exist", regionName));
                    
                    m_app.RemoveRegion(scene, true);

                    responseData["success"] = "true";
                    responseData["region_name"] = regionName;

                    response.Value = responseData;
                }
                catch (Exception e)
                {
                    m_log.ErrorFormat("[RADMIN] DeleteRegion: failed {0}", e.Message);
                    m_log.DebugFormat("[RADMIN] DeleteRegion: failed {0}", e.ToString());

                    responseData["success"] = "false";
                    responseData["error"] = e.Message;

                    response.Value = responseData;
                }

                return response;

            }
        }

        /// <summary>
        /// Create a new user account.
        /// <summary>
        /// <param name="request">incoming XML RPC request</param>
        /// <remarks>
        /// XmlRpcCreateUserMethod takes the following XMLRPC
        /// parameters
        /// <list type="table">
        /// <listheader><term>parameter name</term><description>description</description></listheader>
        /// <item><term>password</term>
        ///       <description>admin password as set in OpenSim.ini</description></item>
        /// <item><term>user_firstname</term>
        ///       <description>avatar's first name</description></item>
        /// <item><term>user_lastname</term>
        ///       <description>avatar's last name</description></item>
        /// <item><term>user_password</term>
        ///       <description>avatar's password</description></item>
        /// <item><term>start_region_x</term>
        ///       <description>avatar's start region coordinates, X value</description></item>
        /// <item><term>start_region_y</term>
        ///       <description>avatar's start region coordinates, Y value</description></item>
        /// </list>
        ///
        /// XmlRpcCreateUserMethod returns
        /// <list type="table">
        /// <listheader><term>name</term><description>description</description></listheader>
        /// <item><term>success</term>
        ///       <description>true or false</description></item>
        /// <item><term>error</term>
        ///       <description>error message if success is false</description></item>
        /// <item><term>avatar_uuid</term>
        ///       <description>UUID of the newly created avatar
        ///                    account; UUID.Zero if failed.
        ///       </description></item>
        /// </list>
        /// </remarks>
        public XmlRpcResponse XmlRpcCreateUserMethod(XmlRpcRequest request)
        {
            m_log.Info("[RADMIN]: CreateUser: new request");
            XmlRpcResponse response = new XmlRpcResponse();
            Hashtable responseData = new Hashtable();

            lock (this) 
            {
                try
                {
                    Hashtable requestData = (Hashtable) request.Params[0];

                    // check completeness
                    checkStringParameters(request, new string[] { "password", "user_firstname",
                                                                  "user_lastname", "user_password", });
                    checkIntegerParams(request, new string[] { "start_region_x", "start_region_y" });

                    // check password
                    if (!String.IsNullOrEmpty(requiredPassword) &&
                        (string)requestData["password"] != requiredPassword) throw new Exception("wrong password");

                    // do the job
                    string firstname = (string) requestData["user_firstname"];
                    string lastname  = (string) requestData["user_lastname"];
                    string passwd    = (string) requestData["user_password"];
                    string email     = ""; //Empty string for email
                    uint   regX      = Convert.ToUInt32((Int32)requestData["start_region_x"]);
                    uint   regY      = Convert.ToUInt32((Int32)requestData["start_region_y"]);

                    UserProfileData userProfile = m_app.CommunicationsManager.UserService.GetUserProfile(firstname, lastname);
                    if (null != userProfile)
                        throw new Exception(String.Format("avatar {0} {1} already exists", firstname, lastname));

                    UUID userID = m_app.CommunicationsManager.UserAdminService.AddUser(firstname, lastname, 
                                                                                       passwd, email, regX, regY);

                    if (userID == UUID.Zero) throw new Exception(String.Format("failed to create new user {0} {1}",
                                                                               firstname, lastname));

                    responseData["success"]     = "true";
                    responseData["avatar_uuid"] = userID.ToString();

                    response.Value = responseData;

                    m_log.InfoFormat("[RADMIN]: CreateUser: User {0} {1} created, UUID {2}", firstname, lastname, userID);
                }
                catch (Exception e)
                {
                    m_log.ErrorFormat("[RADMIN] CreateUser: failed: {0}", e.Message);
                    m_log.DebugFormat("[RADMIN] CreateUser: failed: {0}", e.ToString());

                    responseData["success"]     = "false";
                    responseData["avatar_uuid"] = UUID.Zero.ToString();
                    responseData["error"]       = e.Message;

                    response.Value = responseData;
                }
                return response;

            }
        }

        /// <summary>
        /// Create a new user account.
        /// <summary>
        /// <param name="request">incoming XML RPC request</param>
        /// <remarks>
        /// XmlRpcCreateUserMethod takes the following XMLRPC
        /// parameters
        /// <list type="table">
        /// <listheader><term>parameter name</term><description>description</description></listheader>
        /// <item><term>password</term>
        ///       <description>admin password as set in OpenSim.ini</description></item>
        /// <item><term>user_firstname</term>
        ///       <description>avatar's first name</description></item>
        /// <item><term>user_lastname</term>
        ///       <description>avatar's last name</description></item>
        /// <item><term>user_password</term>
        ///       <description>avatar's password</description></item>
        /// <item><term>start_region_x</term>
        ///       <description>avatar's start region coordinates, X value</description></item>
        /// <item><term>start_region_y</term>
        ///       <description>avatar's start region coordinates, Y value</description></item>
        /// <item><term>user_email</term>
        ///       <description>email of avatar</description></item>
        /// </list>
        ///
        /// XmlRpcCreateUserMethod returns
        /// <list type="table">
        /// <listheader><term>name</term><description>description</description></listheader>
        /// <item><term>success</term>
        ///       <description>true or false</description></item>
        /// <item><term>error</term>
        ///       <description>error message if success is false</description></item>
        /// <item><term>avatar_uuid</term>
        ///       <description>UUID of the newly created avatar
        ///                    account; UUID.Zero if failed.
        ///       </description></item>
        /// </list>
        /// </remarks>
        public XmlRpcResponse XmlRpcCreateUserMethodEmail(XmlRpcRequest request)
        {
            m_log.Info("[RADMIN]: CreateUser: new request");
            XmlRpcResponse response = new XmlRpcResponse();
            Hashtable responseData = new Hashtable();

            lock (this) 
            {
                try
                {
                    Hashtable requestData = (Hashtable)request.Params[0];

                    // check completeness
                    checkStringParameters(request, new string[] { "password", "user_firstname",
                                                                  "user_lastname", "user_password", "user_email" });
                    checkIntegerParams(request, new string[] { "start_region_x", "start_region_y" });

                    // check password
                    if (!String.IsNullOrEmpty(requiredPassword) &&
                        (string)requestData["password"] != requiredPassword) throw new Exception("wrong password");

                    // do the job
                    string firstname = (string)requestData["user_firstname"];
                    string lastname = (string)requestData["user_lastname"];
                    string passwd = (string)requestData["user_password"];
                    string email = (string)requestData["user_email"];
                    uint regX = Convert.ToUInt32((Int32)requestData["start_region_x"]);
                    uint regY = Convert.ToUInt32((Int32)requestData["start_region_y"]);

                    UserProfileData userProfile = m_app.CommunicationsManager.UserService.GetUserProfile(firstname, lastname);
                    if (null != userProfile)
                        throw new Exception(String.Format("avatar {0} {1} already exists", firstname, lastname));

                    UUID userID
                        = m_app.CommunicationsManager.UserAdminService.AddUser(
                            firstname, lastname, passwd, email, regX, regY);

                    if (userID == UUID.Zero) throw new Exception(String.Format("failed to create new user {0} {1}",
                                                                                 firstname, lastname));

                    responseData["success"] = "true";
                    responseData["avatar_uuid"] = userID.ToString();

                    response.Value = responseData;

                    m_log.InfoFormat("[RADMIN]: CreateUser: User {0} {1} created, UUID {2}", firstname, lastname, userID);
                }
                catch (Exception e)
                {
                    m_log.ErrorFormat("[RADMIN] CreateUser: failed: {0}", e.Message);
                    m_log.DebugFormat("[RADMIN] CreateUser: failed: {0}", e.ToString());

                    responseData["success"] = "false";
                    responseData["avatar_uuid"] = UUID.Zero.ToString();
                    responseData["error"] = e.Message;

                    response.Value = responseData;
                }
                return response;

            }
        }

        /// <summary>
        /// Check whether a certain user account exists.
        /// <summary>
        /// <param name="request">incoming XML RPC request</param>
        /// <remarks>
        /// XmlRpcUserExistsMethod takes the following XMLRPC
        /// parameters
        /// <list type="table">
        /// <listheader><term>parameter name</term><description>description</description></listheader>
        /// <item><term>password</term>
        ///       <description>admin password as set in OpenSim.ini</description></item>
        /// <item><term>user_firstname</term>
        ///       <description>avatar's first name</description></item>
        /// <item><term>user_lastname</term>
        ///       <description>avatar's last name</description></item>
        /// </list>
        ///
        /// XmlRpcCreateUserMethod returns
        /// <list type="table">
        /// <listheader><term>name</term><description>description</description></listheader>
        /// <item><term>user_firstname</term>
        ///       <description>avatar's first name</description></item>
        /// <item><term>user_lastname</term>
        ///       <description>avatar's last name</description></item>
        /// <item><term>success</term>
        ///       <description>true or false</description></item>
        /// <item><term>error</term>
        ///       <description>error message if success is false</description></item>
        /// </list>
        /// </remarks>
        public XmlRpcResponse XmlRpcUserExistsMethod(XmlRpcRequest request)
        {
            m_log.Info("[RADMIN]: UserExists: new request");
            XmlRpcResponse response = new XmlRpcResponse();
            Hashtable responseData = new Hashtable();

            try
            {
                Hashtable requestData = (Hashtable) request.Params[0];

                // check completeness
                checkStringParameters(request, new string[] { "password", "user_firstname", "user_lastname"});
                
                string firstname = (string) requestData["user_firstname"];
                string lastname  = (string) requestData["user_lastname"];
                
                UserProfileData userProfile = m_app.CommunicationsManager.UserService.GetUserProfile(firstname, lastname);

                responseData["user_firstname"] = firstname;
                responseData["user_lastname"] = lastname;

                if (null == userProfile)
                    responseData["success"] = false;
                else
                    responseData["success"] = true;
                    
                response.Value = responseData;
            }
            catch (Exception e)
            {
                m_log.ErrorFormat("[RADMIN] UserExists: failed: {0}", e.Message);
                m_log.DebugFormat("[RADMIN] UserExists: failed: {0}", e.ToString());

                responseData["success"]     = "false";
                responseData["error"]       = e.Message;

                response.Value = responseData;
            }

            return response;
        }

        /// <summary>
        /// Update the password of a user account.
        /// <summary>
        /// <param name="request">incoming XML RPC request</param>
        /// <remarks>
        /// XmlRpcUpdateUserAccountMethod takes the following XMLRPC
        /// parameters
        /// <list type="table">
        /// <listheader><term>parameter name</term><description>description</description></listheader>
        /// <item><term>password</term>
        ///       <description>admin password as set in OpenSim.ini</description></item>
        /// <item><term>user_firstname</term>
        ///       <description>avatar's first name (cannot be changed)</description></item>
        /// <item><term>user_lastname</term>
        ///       <description>avatar's last name (cannot be changed)</description></item>
        /// <item><term>user_password</term>
        ///       <description>avatar's password (changeable)</description></item>
        /// <item><term>start_region_x</term>
        ///       <description>avatar's start region coordinates, X
        ///                    value (changeable)</description></item>
        /// <item><term>start_region_y</term>
        ///       <description>avatar's start region coordinates, Y
        ///                    value (changeable)</description></item>
        /// </list>
        ///
        /// XmlRpcCreateUserMethod returns
        /// <list type="table">
        /// <listheader><term>name</term><description>description</description></listheader>
        /// <item><term>success</term>
        ///       <description>true or false</description></item>
        /// <item><term>error</term>
        ///       <description>error message if success is false</description></item>
        /// </list>
        /// </remarks>
        public XmlRpcResponse XmlRpcUpdateUserAccountMethod(XmlRpcRequest request)
        {
            m_log.Info("[RADMIN]: UpdateUserAccount: new request");
            XmlRpcResponse response = new XmlRpcResponse();
            Hashtable responseData = new Hashtable();

            lock (this) 
            {
                try
                {
                    Hashtable requestData = (Hashtable) request.Params[0];

                    // check completeness
                    checkStringParameters(request, new string[] { "password", "user_firstname",
                                                                  "user_lastname" });

                    // check password
                    if (!String.IsNullOrEmpty(requiredPassword) &&
                        (string)requestData["password"] != requiredPassword) throw new Exception("wrong password");

                    // do the job
                    string firstname = (string) requestData["user_firstname"];
                    string lastname  = (string) requestData["user_lastname"];


                    string passwd = String.Empty;
                    uint?  regX   = null;
                    uint?  regY   = null;
                    uint?  ulaX   = null;
                    uint?  ulaY   = null;
                    uint?  ulaZ   = null;
                    uint?  usaX   = null;
                    uint?  usaY   = null;
                    uint?  usaZ   = null;


                    if (requestData.ContainsKey("user_password"))  passwd = (string) requestData["user_password"];
                    if (requestData.ContainsKey("start_region_x"))   regX = Convert.ToUInt32((Int32)requestData["start_region_x"]);
                    if (requestData.ContainsKey("start_region_y"))   regY = Convert.ToUInt32((Int32)requestData["start_region_y"]);

                    if (requestData.ContainsKey("start_lookat_x"))   ulaY = Convert.ToUInt32((Int32)requestData["start_lookat_x"]);
                    if (requestData.ContainsKey("start_lookat_y"))   ulaY = Convert.ToUInt32((Int32)requestData["start_lookat_y"]);
                    if (requestData.ContainsKey("start_lookat_z"))   ulaY = Convert.ToUInt32((Int32)requestData["start_lookat_z"]);

                    if (requestData.ContainsKey("start_standat_x"))  usaY = Convert.ToUInt32((Int32)requestData["start_standat_x"]);
                    if (requestData.ContainsKey("start_standat_y"))  usaY = Convert.ToUInt32((Int32)requestData["start_standat_y"]);
                    if (requestData.ContainsKey("start_standat_z"))  usaY = Convert.ToUInt32((Int32)requestData["start_standat_z"]);

                    UserProfileData userProfile = m_app.CommunicationsManager.UserService.GetUserProfile(firstname, lastname);

                    if (null == userProfile)
                        throw new Exception(String.Format("avatar {0} {1} does not exist", firstname, lastname));

                    if (null != passwd)
                    {
                        string md5PasswdHash = Util.Md5Hash(Util.Md5Hash(passwd) + ":" + String.Empty);
                        userProfile.PasswordHash = md5PasswdHash;
                    }

                    if (null != regX) userProfile.HomeRegionX   = (uint)regX;
                    if (null != regY) userProfile.HomeRegionY   = (uint)regY;

                    if (null != usaX) userProfile.HomeLocationX = (uint)usaX;
                    if (null != usaY) userProfile.HomeLocationY = (uint)usaY;
                    if (null != usaZ) userProfile.HomeLocationZ = (uint)usaZ;
        
                    if (null != ulaX) userProfile.HomeLookAtX   = (uint)ulaX;
                    if (null != ulaY) userProfile.HomeLookAtY   = (uint)ulaY;
                    if (null != ulaZ) userProfile.HomeLookAtZ   = (uint)ulaZ;
        
                    if (!m_app.CommunicationsManager.UserService.UpdateUserProfile(userProfile))
                        throw new Exception("did not manage to update user profile");

                    responseData["success"]     = "true";

                    response.Value = responseData;

                    m_log.InfoFormat("[RADMIN]: UpdateUserAccount: account for user {0} {1} updated, UUID {2}", firstname, lastname,
                                     userProfile.ID);
                }
                catch (Exception e)
                {
                    m_log.ErrorFormat("[RADMIN] UpdateUserAccount: failed: {0}", e.Message);
                    m_log.DebugFormat("[RADMIN] UpdateUserAccount: failed: {0}", e.ToString());

                    responseData["success"]     = "false";
                    responseData["error"]       = e.Message;

                    response.Value = responseData;
                }
            }

            return response;
        }

        /// <summary>
        /// Load an OAR file into a region..
        /// <summary>
        /// <param name="request">incoming XML RPC request</param>
        /// <remarks>
        /// XmlRpcLoadOARMethod takes the following XMLRPC
        /// parameters
        /// <list type="table">
        /// <listheader><term>parameter name</term><description>description</description></listheader>
        /// <item><term>password</term>
        ///       <description>admin password as set in OpenSim.ini</description></item>
        /// <item><term>filename</term>
        ///       <description>file name of the OAR file</description></item>
        /// <item><term>region_uuid</term>
        ///       <description>UUID of the region</description></item>
        /// <item><term>region_name</term>
        ///       <description>region name</description></item>
        /// </list>
        ///
        /// <code>region_uuid</code> takes precedence over
        /// <code>region_name</code> if both are present; one of both
        /// must be present.
        ///
        /// XmlRpcLoadOARMethod returns
        /// <list type="table">
        /// <listheader><term>name</term><description>description</description></listheader>
        /// <item><term>success</term>
        ///       <description>true or false</description></item>
        /// <item><term>error</term>
        ///       <description>error message if success is false</description></item>
        /// </list>
        /// </remarks>
        public XmlRpcResponse XmlRpcLoadOARMethod(XmlRpcRequest request)
        {
            m_log.Info("[RADMIN]: Received Load OAR Administrator Request");
            XmlRpcResponse response = new XmlRpcResponse();
            Hashtable responseData = new Hashtable();

            lock (this) 
            {                
                try
                {
                    Hashtable requestData = (Hashtable) request.Params[0];

                    // check completeness
                    foreach (string p in new string[] { "password", "filename" })
                    {
                        if (!requestData.Contains(p))
                            throw new Exception(String.Format("missing parameter {0}", p));
                        if (String.IsNullOrEmpty((string)requestData[p]))
                            throw new Exception(String.Format("parameter {0} is empty"));
                    }

                    // check password
                    if (!String.IsNullOrEmpty(requiredPassword) &&
                        (string)requestData["password"] != requiredPassword) throw new Exception("wrong password");

                    string filename = (string)requestData["filename"];
                    Scene scene = null;
                    if (requestData.Contains("region_uuid"))
                    {
                        UUID region_uuid = (UUID)(string)requestData["region_uuid"];
                        if (!m_app.SceneManager.TryGetScene(region_uuid, out scene))
                            throw new Exception(String.Format("failed to switch to region {0}", region_uuid.ToString()));
                    }
                    else if (requestData.Contains("region_name"))
                    {
                        string region_name = (string)requestData["region_name"];
                        if (!m_app.SceneManager.TryGetScene(region_name, out scene))
                            throw new Exception(String.Format("failed to switch to region {0}", region_name));
                    }
                    else throw new Exception("neither region_name nor region_uuid given");

                    IRegionArchiverModule archiver = scene.RequestModuleInterface<IRegionArchiverModule>();
                    if (archiver != null)            
                        archiver.DearchiveRegion(filename);
                    else 
                        throw new Exception("Archiver module not present for scene");
                    
                    responseData["loaded"]   = "true";
                    
                    response.Value           = responseData;
                }
                catch (Exception e)
                {
                    m_log.InfoFormat("[RADMIN] LoadOAR: {0}", e.Message);
                    m_log.DebugFormat("[RADMIN] LoadOAR: {0}", e.ToString());

                    responseData["loaded"]  = "false";
                    responseData["error"]   = e.Message;

                    response.Value          = responseData;
                }

                return response;
            }
        }

        /// <summary>
        /// Save a region to an OAR file
        /// <summary>
        /// <param name="request">incoming XML RPC request</param>
        /// <remarks>
        /// XmlRpcSaveOARMethod takes the following XMLRPC
        /// parameters
        /// <list type="table">
        /// <listheader><term>parameter name</term><description>description</description></listheader>
        /// <item><term>password</term>
        ///       <description>admin password as set in OpenSim.ini</description></item>
        /// <item><term>filename</term>
        ///       <description>file name for the OAR file</description></item>
        /// <item><term>region_uuid</term>
        ///       <description>UUID of the region</description></item>
        /// <item><term>region_name</term>
        ///       <description>region name</description></item>
        /// </list>
        ///
        /// <code>region_uuid</code> takes precedence over
        /// <code>region_name</code> if both are present; one of both
        /// must be present.
        ///
        /// XmlRpcLoadOARMethod returns
        /// <list type="table">
        /// <listheader><term>name</term><description>description</description></listheader>
        /// <item><term>success</term>
        ///       <description>true or false</description></item>
        /// <item><term>error</term>
        ///       <description>error message if success is false</description></item>
        /// </list>
        /// </remarks>
        public XmlRpcResponse XmlRpcSaveOARMethod(XmlRpcRequest request)
        {
            m_log.Info("[RADMIN]: Received Save OAR Administrator Request");
            XmlRpcResponse response = new XmlRpcResponse();
            Hashtable responseData = new Hashtable();

            try
            {
                Hashtable requestData = (Hashtable) request.Params[0];

                // check completeness
                foreach (string p in new string[] { "password", "filename" })
                {
                    if (!requestData.Contains(p))
                        throw new Exception(String.Format("missing parameter {0}", p));
                    if (String.IsNullOrEmpty((string)requestData[p]))
                        throw new Exception(String.Format("parameter {0} is empty"));
                }

                // check password
                if (!String.IsNullOrEmpty(requiredPassword) &&
                    (string)requestData["password"] != requiredPassword) throw new Exception("wrong password");

                string filename = (string)requestData["filename"];
                Scene scene = null;
                if (requestData.Contains("region_uuid"))
                {
                    UUID region_uuid = (UUID)(string)requestData["region_uuid"];
                    if (!m_app.SceneManager.TryGetScene(region_uuid, out scene))
                        throw new Exception(String.Format("failed to switch to region {0}", region_uuid.ToString()));
                }
                else if (requestData.Contains("region_name"))
                {
                    string region_name = (string)requestData["region_name"];
                    if (!m_app.SceneManager.TryGetScene(region_name, out scene))
                        throw new Exception(String.Format("failed to switch to region {0}", region_name));
                }
                else throw new Exception("neither region_name nor region_uuid given");

                IRegionArchiverModule archiver = scene.RequestModuleInterface<IRegionArchiverModule>();
                if (archiver != null)
                    archiver.ArchiveRegion(filename);
                else 
                    throw new Exception("Archiver module not present for scene");                

                responseData["saved"]   = "true";

                response.Value           = responseData;
            }
            catch (Exception e)
            {
                m_log.InfoFormat("[RADMIN] SaveOAR: {0}", e.Message);
                m_log.DebugFormat("[RADMIN] SaveOAR: {0}", e.ToString());

                responseData["saved"]  = "false";
                responseData["error"]   = e.Message;

                response.Value          = responseData;
            }

            return response;
        }

        public XmlRpcResponse XmlRpcLoadXMLMethod(XmlRpcRequest request)
        {
            m_log.Info("[RADMIN]: Received Load XML Administrator Request");
            XmlRpcResponse response = new XmlRpcResponse();
            Hashtable responseData = new Hashtable();
            
            lock (this) 
            {
                try
                {
                    Hashtable requestData = (Hashtable) request.Params[0];

                    // check completeness
                    foreach (string p in new string[] { "password", "filename" })
                    {
                        if (!requestData.Contains(p))
                            throw new Exception(String.Format("missing parameter {0}", p));
                        if (String.IsNullOrEmpty((string)requestData[p]))
                            throw new Exception(String.Format("parameter {0} is empty"));
                    }

                    // check password
                    if (!String.IsNullOrEmpty(requiredPassword) &&
                        (string)requestData["password"] != requiredPassword) throw new Exception("wrong password");

                    string filename = (string)requestData["filename"];
                    if (requestData.Contains("region_uuid"))
                    {
                        UUID region_uuid = (UUID)(string)requestData["region_uuid"];
                        if (!m_app.SceneManager.TrySetCurrentScene(region_uuid))
                            throw new Exception(String.Format("failed to switch to region {0}", region_uuid.ToString()));
                        m_log.InfoFormat("[RADMIN] Switched to region {0}", region_uuid.ToString());
                    }
                    else if (requestData.Contains("region_name"))
                    {
                        string region_name = (string)requestData["region_name"];
                        if (!m_app.SceneManager.TrySetCurrentScene(region_name))
                            throw new Exception(String.Format("failed to switch to region {0}", region_name));
                        m_log.InfoFormat("[RADMIN] Switched to region {0}", region_name);
                    }
                    else throw new Exception("neither region_name nor region_uuid given");

                    responseData["switched"] = "true";

                    string xml_version = "1";
                    if (requestData.Contains("xml_version"))
                    {
                        xml_version = (string)requestData["xml_version"];
                    }

                    switch (xml_version)
                    {
                        case "1":
                            m_app.SceneManager.LoadCurrentSceneFromXml(filename, true, new Vector3(0, 0, 0));
                            break;

                        case "2":
                            m_app.SceneManager.LoadCurrentSceneFromXml2(filename);
                            break;

                        default:
                            throw new Exception(String.Format("unknown Xml{0} format", xml_version));
                    }

                    responseData["loaded"]   = "true";
                    response.Value           = responseData;
                }
                catch (Exception e)
                {
                    m_log.InfoFormat("[RADMIN] LoadXml: {0}", e.Message);
                    m_log.DebugFormat("[RADMIN] LoadXml: {0}", e.ToString());

                    responseData["loaded"]  = "false";
                    responseData["switched"] = "false";
                    responseData["error"]   = e.Message;

                    response.Value          = responseData;
                }

                return response;
            }
        }


        public XmlRpcResponse XmlRpcSaveXMLMethod(XmlRpcRequest request)
        {
            m_log.Info("[RADMIN]: Received Save XML Administrator Request");
            XmlRpcResponse response = new XmlRpcResponse();
            Hashtable responseData = new Hashtable();

            try
            {
                Hashtable requestData = (Hashtable)request.Params[0];

                // check completeness
                foreach (string p in new string[] { "password", "filename" })
                {
                    if (!requestData.Contains(p))
                        throw new Exception(String.Format("missing parameter {0}", p));
                    if (String.IsNullOrEmpty((string)requestData[p]))
                        throw new Exception(String.Format("parameter {0} is empty"));
                }

                // check password
                if (!String.IsNullOrEmpty(requiredPassword) &&
                    (string)requestData["password"] != requiredPassword) throw new Exception("wrong password");

                string filename = (string)requestData["filename"];
                if (requestData.Contains("region_uuid"))
                {
                    UUID region_uuid = (UUID)(string)requestData["region_uuid"];
                    if (!m_app.SceneManager.TrySetCurrentScene(region_uuid))
                        throw new Exception(String.Format("failed to switch to region {0}", region_uuid.ToString()));
                    m_log.InfoFormat("[RADMIN] Switched to region {0}", region_uuid.ToString());
                }
                else if (requestData.Contains("region_name"))
                {
                    string region_name = (string)requestData["region_name"];
                    if (!m_app.SceneManager.TrySetCurrentScene(region_name))
                        throw new Exception(String.Format("failed to switch to region {0}", region_name));
                    m_log.InfoFormat("[RADMIN] Switched to region {0}", region_name);
                }
                else throw new Exception("neither region_name nor region_uuid given");

                responseData["switched"] = "true";

                string xml_version = "1";
                if (requestData.Contains("xml_version"))
                {
                    xml_version = (string)requestData["xml_version"];
                }

                switch (xml_version)
                {
                    case "1":
                        m_app.SceneManager.SaveCurrentSceneToXml(filename);
                        break;

                    case "2":
                        m_app.SceneManager.SaveCurrentSceneToXml2(filename);
                        break;

                    default:
                        throw new Exception(String.Format("unknown Xml{0} format", xml_version));
                }

                responseData["saved"] = "true";

                response.Value = responseData;
            }
            catch (Exception e)
            {
                m_log.InfoFormat("[RADMIN] LoadXml: {0}", e.Message);
                m_log.DebugFormat("[RADMIN] LoadXml: {0}", e.ToString());

                responseData["loaded"] = "false";
                responseData["switched"] = "false";
                responseData["error"] = e.Message;

                response.Value = responseData;
            }

            return response;
        }

        public XmlRpcResponse XmlRpcRegionQueryMethod(XmlRpcRequest request)
        {
            m_log.Info("[RADMIN]: Received Query XML Administrator Request");
            XmlRpcResponse response = new XmlRpcResponse();
            Hashtable responseData = new Hashtable();

            try
            {
                responseData["success"] = "true";

                Hashtable requestData = (Hashtable)request.Params[0];

                // check completeness
                if (!requestData.Contains("password"))
                    throw new Exception(String.Format("missing required parameter"));
                if (!String.IsNullOrEmpty(requiredPassword) &&
                    (string)requestData["password"] != requiredPassword) throw new Exception("wrong password");

                if (requestData.Contains("region_uuid"))
                {
                    UUID region_uuid = (UUID)(string)requestData["region_uuid"];
                    if (!m_app.SceneManager.TrySetCurrentScene(region_uuid))
                        throw new Exception(String.Format("failed to switch to region {0}", region_uuid.ToString()));
                    m_log.InfoFormat("[RADMIN] Switched to region {0}", region_uuid.ToString());
                }
                else if (requestData.Contains("region_name"))
                {
                    string region_name = (string)requestData["region_name"];
                    if (!m_app.SceneManager.TrySetCurrentScene(region_name))
                        throw new Exception(String.Format("failed to switch to region {0}", region_name));
                    m_log.InfoFormat("[RADMIN] Switched to region {0}", region_name);
                }
                else throw new Exception("neither region_name nor region_uuid given");

                Scene s = m_app.SceneManager.CurrentScene;

                int health = s.GetHealth();

                responseData["health"] = health;

                response.Value = responseData;
            }
            catch (Exception e)
            {
                m_log.InfoFormat("[RADMIN] RegionQuery: {0}", e.Message);

                responseData["success"] = "false";
                responseData["error"] = e.Message;

                response.Value = responseData;
            }

            return response;
        }

        public void Dispose()
        {
        }
    }
}