Merge remote-tracking branch 'os/master'

11 files changed, 3673 insertions, 0 deletions

diff --git a/OpenSim/Services/HypergridService/GatekeeperService.cs b/OpenSim/Services/HypergridService/GatekeeperService.cs
new file mode 100644
index 0000000..44b26d5
--- /dev/null
+++ b/OpenSim/Services/HypergridService/GatekeeperService.cs
@@ -0,0 +1,559 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Net;
+using System.Reflection;
+using System.Text.RegularExpressions;
+
+using OpenSim.Framework;
+using OpenSim.Services.Interfaces;
+using GridRegion = OpenSim.Services.Interfaces.GridRegion;
+using OpenSim.Server.Base;
+using OpenSim.Services.Connectors.Hypergrid;
+
+using OpenMetaverse;
+
+using Nini.Config;
+using log4net;
+
+namespace OpenSim.Services.HypergridService
+{
+    public class GatekeeperService : IGatekeeperService
+    {
+        private static readonly ILog m_log =
+                LogManager.GetLogger(
+                MethodBase.GetCurrentMethod().DeclaringType);
+
+        private static bool m_Initialized = false;
+
+        private static IGridService m_GridService;
+        private static IPresenceService m_PresenceService;
+        private static IUserAccountService m_UserAccountService;
+        private static IUserAgentService m_UserAgentService;
+        private static ISimulationService m_SimulationService;
+        private static IGridUserService m_GridUserService;
+        private static IBansService m_BansService;
+
+        private static string m_AllowedClients = string.Empty;
+        private static string m_DeniedClients = string.Empty;
+        private static bool m_ForeignAgentsAllowed = true;
+        private static List<string> m_ForeignsAllowedExceptions = new List<string>();
+        private static List<string> m_ForeignsDisallowedExceptions = new List<string>();
+
+        private static UUID m_ScopeID;
+        private static bool m_AllowTeleportsToAnyRegion;
+        private static string m_ExternalName;
+        private static Uri m_Uri;
+        private static GridRegion m_DefaultGatewayRegion;
+
+        public GatekeeperService(IConfigSource config, ISimulationService simService)
+        {
+            if (!m_Initialized)
+            {
+                m_Initialized = true;
+
+                IConfig serverConfig = config.Configs["GatekeeperService"];
+                if (serverConfig == null)
+                    throw new Exception(String.Format("No section GatekeeperService in config file"));
+
+                string accountService = serverConfig.GetString("UserAccountService", String.Empty);
+                string homeUsersService = serverConfig.GetString("UserAgentService", string.Empty);
+                string gridService = serverConfig.GetString("GridService", String.Empty);
+                string presenceService = serverConfig.GetString("PresenceService", String.Empty);
+                string simulationService = serverConfig.GetString("SimulationService", String.Empty);
+                string gridUserService = serverConfig.GetString("GridUserService", String.Empty);
+                string bansService = serverConfig.GetString("BansService", String.Empty);
+
+                // These are mandatory, the others aren't
+                if (gridService == string.Empty || presenceService == string.Empty)
+                    throw new Exception("Incomplete specifications, Gatekeeper Service cannot function.");
+                
+                string scope = serverConfig.GetString("ScopeID", UUID.Zero.ToString());
+                UUID.TryParse(scope, out m_ScopeID);
+                //m_WelcomeMessage = serverConfig.GetString("WelcomeMessage", "Welcome to OpenSim!");
+                m_AllowTeleportsToAnyRegion = serverConfig.GetBoolean("AllowTeleportsToAnyRegion", true);
+                m_ExternalName = Util.GetConfigVarFromSections<string>(config, "GatekeeperURI",
+                    new string[] { "Startup", "Hypergrid", "GatekeeperService" }, String.Empty);
+                m_ExternalName = serverConfig.GetString("ExternalName", m_ExternalName);
+                if (m_ExternalName != string.Empty && !m_ExternalName.EndsWith("/"))
+                    m_ExternalName = m_ExternalName + "/";
+
+                try
+                {
+                    m_Uri = new Uri(m_ExternalName);
+                }
+                catch
+                {
+                    m_log.WarnFormat("[GATEKEEPER SERVICE]: Malformed gatekeeper address {0}", m_ExternalName);
+                }
+
+                Object[] args = new Object[] { config };
+                m_GridService = ServerUtils.LoadPlugin<IGridService>(gridService, args);
+                m_PresenceService = ServerUtils.LoadPlugin<IPresenceService>(presenceService, args);
+
+                if (accountService != string.Empty)
+                    m_UserAccountService = ServerUtils.LoadPlugin<IUserAccountService>(accountService, args);
+                if (homeUsersService != string.Empty)
+                    m_UserAgentService = ServerUtils.LoadPlugin<IUserAgentService>(homeUsersService, args);
+                if (gridUserService != string.Empty)
+                    m_GridUserService = ServerUtils.LoadPlugin<IGridUserService>(gridUserService, args);
+                if (bansService != string.Empty)
+                    m_BansService = ServerUtils.LoadPlugin<IBansService>(bansService, args);
+
+                if (simService != null)
+                    m_SimulationService = simService;
+                else if (simulationService != string.Empty)
+                        m_SimulationService = ServerUtils.LoadPlugin<ISimulationService>(simulationService, args);
+
+                m_AllowedClients = serverConfig.GetString("AllowedClients", string.Empty);
+                m_DeniedClients = serverConfig.GetString("DeniedClients", string.Empty);
+                m_ForeignAgentsAllowed = serverConfig.GetBoolean("ForeignAgentsAllowed", true);
+
+                LoadDomainExceptionsFromConfig(serverConfig, "AllowExcept", m_ForeignsAllowedExceptions);
+                LoadDomainExceptionsFromConfig(serverConfig, "DisallowExcept", m_ForeignsDisallowedExceptions);
+
+                if (m_GridService == null || m_PresenceService == null || m_SimulationService == null)
+                    throw new Exception("Unable to load a required plugin, Gatekeeper Service cannot function.");
+
+                m_log.Debug("[GATEKEEPER SERVICE]: Starting...");
+            }
+        }
+
+        public GatekeeperService(IConfigSource config)
+            : this(config, null)
+        {
+        }
+
+        protected void LoadDomainExceptionsFromConfig(IConfig config, string variable, List<string> exceptions)
+        {
+            string value = config.GetString(variable, string.Empty);
+            string[] parts = value.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
+
+            foreach (string s in parts)
+                exceptions.Add(s.Trim());
+        }
+
+        public bool LinkRegion(string regionName, out UUID regionID, out ulong regionHandle, out string externalName, out string imageURL, out string reason)
+        {
+            regionID = UUID.Zero;
+            regionHandle = 0;
+            externalName = m_ExternalName + ((regionName != string.Empty) ? " " + regionName : "");
+            imageURL = string.Empty;
+            reason = string.Empty;
+            GridRegion region = null;
+
+            m_log.DebugFormat("[GATEKEEPER SERVICE]: Request to link to {0}", (regionName == string.Empty)? "default region" : regionName);
+            if (!m_AllowTeleportsToAnyRegion || regionName == string.Empty)
+            {
+                List<GridRegion> defs = m_GridService.GetDefaultHypergridRegions(m_ScopeID);
+                if (defs != null && defs.Count > 0)
+                {
+                    region = defs[0];
+                    m_DefaultGatewayRegion = region;
+                }
+                else
+                {
+                    reason = "Grid setup problem. Try specifying a particular region here.";
+                    m_log.DebugFormat("[GATEKEEPER SERVICE]: Unable to send information. Please specify a default region for this grid!");
+                    return false;
+                }
+            }
+            else
+            {
+                region = m_GridService.GetRegionByName(m_ScopeID, regionName);
+                if (region == null)
+                {
+                    reason = "Region not found";
+                    return false;
+                }
+            }
+
+            regionID = region.RegionID;
+            regionHandle = region.RegionHandle;
+
+            string regionimage = "regionImage" + regionID.ToString();
+            regionimage = regionimage.Replace("-", "");
+            imageURL = region.ServerURI + "index.php?method=" + regionimage;
+
+            return true;
+        }
+
+        public GridRegion GetHyperlinkRegion(UUID regionID, UUID agentID, string agentHomeURI, out string message)
+        {
+            message = null;
+
+            if (!m_AllowTeleportsToAnyRegion)
+            {
+                // Don't even check the given regionID
+                m_log.DebugFormat(
+                    "[GATEKEEPER SERVICE]: Returning gateway region {0} {1} @ {2} to user {3}{4} as teleporting to arbitrary regions is not allowed.", 
+                    m_DefaultGatewayRegion.RegionName, 
+                    m_DefaultGatewayRegion.RegionID,
+                    m_DefaultGatewayRegion.ServerURI,
+                    agentID, 
+                    agentHomeURI == null ? "" : " @ " + agentHomeURI);
+
+                message = "Teleporting to the default region.";
+                return m_DefaultGatewayRegion;
+            }
+
+            GridRegion region = m_GridService.GetRegionByUUID(m_ScopeID, regionID);
+
+            if (region == null)
+            {
+                m_log.DebugFormat(
+                    "[GATEKEEPER SERVICE]: Could not find region with ID {0} as requested by user {1}{2}.  Returning null.",
+                    regionID, agentID, (agentHomeURI == null) ? "" : " @ " + agentHomeURI);
+
+                message = "The teleport destination could not be found.";
+                return null;
+            }
+
+            m_log.DebugFormat(
+                "[GATEKEEPER SERVICE]: Returning region {0} {1} @ {2} to user {3}{4}.",
+                region.RegionName, 
+                region.RegionID,
+                region.ServerURI,
+                agentID, 
+                agentHomeURI == null ? "" : " @ " + agentHomeURI);
+
+            return region;
+        }
+
+        #region Login Agent
+        public bool LoginAgent(GridRegion source, AgentCircuitData aCircuit, GridRegion destination, out string reason)
+        {
+            reason = string.Empty;
+
+            string authURL = string.Empty;
+            if (aCircuit.ServiceURLs.ContainsKey("HomeURI"))
+                authURL = aCircuit.ServiceURLs["HomeURI"].ToString();
+
+            m_log.InfoFormat("[GATEKEEPER SERVICE]: Login request for {0} {1} @ {2} ({3}) at {4} using viewer {5}, channel {6}, IP {7}, Mac {8}, Id0 {9}, Teleport Flags: {10}. From region {11}",
+                aCircuit.firstname, aCircuit.lastname, authURL, aCircuit.AgentID, destination.RegionID,
+                aCircuit.Viewer, aCircuit.Channel, aCircuit.IPAddress, aCircuit.Mac, aCircuit.Id0, (TeleportFlags)aCircuit.teleportFlags,
+                (source == null) ? "Unknown" : string.Format("{0} ({1}){2}", source.RegionName, source.RegionID, (source.RawServerURI == null) ? "" : " @ " + source.ServerURI));
+
+            string curViewer = Util.GetViewerName(aCircuit);
+
+            //
+            // Check client
+            //
+            if (m_AllowedClients != string.Empty)
+            {
+                Regex arx = new Regex(m_AllowedClients);
+                Match am = arx.Match(curViewer);
+
+                if (!am.Success)
+                {
+                    m_log.InfoFormat("[GATEKEEPER SERVICE]: Login failed, reason: client {0} is not allowed", curViewer);
+                    return false;
+                }
+            }
+
+            if (m_DeniedClients != string.Empty)
+            {
+                Regex drx = new Regex(m_DeniedClients);
+                Match dm = drx.Match(curViewer);
+
+                if (dm.Success)
+                {
+                    m_log.InfoFormat("[GATEKEEPER SERVICE]: Login failed, reason: client {0} is denied", curViewer);
+                    return false;
+                }
+            }
+
+            //
+            // Authenticate the user
+            //
+            if (!Authenticate(aCircuit))
+            {
+                reason = "Unable to verify identity";
+                m_log.InfoFormat("[GATEKEEPER SERVICE]: Unable to verify identity of agent {0} {1}. Refusing service.", aCircuit.firstname, aCircuit.lastname);
+                return false;
+            }
+            m_log.DebugFormat("[GATEKEEPER SERVICE]: Identity verified for {0} {1} @ {2}", aCircuit.firstname, aCircuit.lastname, authURL);
+            
+            //
+            // Check for impersonations
+            //
+            UserAccount account = null;
+            if (m_UserAccountService != null)
+            {
+                // Check to see if we have a local user with that UUID
+                account = m_UserAccountService.GetUserAccount(m_ScopeID, aCircuit.AgentID);
+                if (account != null)
+                {
+                    // Make sure this is the user coming home, and not a foreign user with same UUID as a local user
+                    if (m_UserAgentService != null)
+                    {
+                        if (!m_UserAgentService.IsAgentComingHome(aCircuit.SessionID, m_ExternalName))
+                        {
+                            // Can't do, sorry
+                            reason = "Unauthorized";
+                            m_log.InfoFormat("[GATEKEEPER SERVICE]: Foreign agent {0} {1} has same ID as local user. Refusing service.",
+                                aCircuit.firstname, aCircuit.lastname);
+                            return false;
+
+                        }
+                    }
+                }
+            }
+
+            //
+            // Foreign agents allowed? Exceptions?
+            //
+            if (account == null)
+            {
+                bool allowed = m_ForeignAgentsAllowed;
+
+                if (m_ForeignAgentsAllowed && IsException(aCircuit, m_ForeignsAllowedExceptions))
+                    allowed = false;
+
+                if (!m_ForeignAgentsAllowed && IsException(aCircuit, m_ForeignsDisallowedExceptions))
+                    allowed = true;
+
+                if (!allowed)
+                {
+                    reason = "Destination does not allow visitors from your world";
+                    m_log.InfoFormat("[GATEKEEPER SERVICE]: Foreign agents are not permitted {0} {1} @ {2}. Refusing service.",
+                        aCircuit.firstname, aCircuit.lastname, aCircuit.ServiceURLs["HomeURI"]);
+                    return false;
+                }
+            }
+
+            //
+            // Is the user banned?
+            // This uses a Ban service that's more powerful than the configs
+            //
+            string uui = (account != null ? aCircuit.AgentID.ToString() : Util.ProduceUserUniversalIdentifier(aCircuit));
+            if (m_BansService != null && m_BansService.IsBanned(uui, aCircuit.IPAddress, aCircuit.Id0, authURL))
+            {
+                reason = "You are banned from this world";
+                m_log.InfoFormat("[GATEKEEPER SERVICE]: Login failed, reason: user {0} is banned", uui);
+                return false;
+            }
+
+            m_log.DebugFormat("[GATEKEEPER SERVICE]: User {0} is ok", aCircuit.Name);
+
+            bool isFirstLogin = false;
+            //
+            // Login the presence, if it's not there yet (by the login service)
+            //
+            PresenceInfo presence = m_PresenceService.GetAgent(aCircuit.SessionID);
+            if (presence != null) // it has been placed there by the login service
+                isFirstLogin = true;
+
+            else
+            {
+                if (!m_PresenceService.LoginAgent(aCircuit.AgentID.ToString(), aCircuit.SessionID, aCircuit.SecureSessionID))
+                {
+                    reason = "Unable to login presence";
+                    m_log.InfoFormat("[GATEKEEPER SERVICE]: Presence login failed for foreign agent {0} {1}. Refusing service.",
+                        aCircuit.firstname, aCircuit.lastname);
+                    return false;
+                }
+
+                m_log.DebugFormat("[GATEKEEPER SERVICE]: Login presence {0} is ok", aCircuit.Name);
+
+                // Also login foreigners with GridUser service
+                if (m_GridUserService != null && account == null)
+                {
+                    string userId = aCircuit.AgentID.ToString();
+                    string first = aCircuit.firstname, last = aCircuit.lastname;
+                    if (last.StartsWith("@"))
+                    {
+                        string[] parts = aCircuit.firstname.Split('.');
+                        if (parts.Length >= 2)
+                        {
+                            first = parts[0];
+                            last = parts[1];
+                        }
+                    }
+
+                    userId += ";" + aCircuit.ServiceURLs["HomeURI"] + ";" + first + " " + last;
+                    m_GridUserService.LoggedIn(userId);
+                }
+            }
+
+            //
+            // Get the region
+            //
+            destination = m_GridService.GetRegionByUUID(m_ScopeID, destination.RegionID);
+            if (destination == null)
+            {
+                reason = "Destination region not found";
+                return false;
+            }
+
+            m_log.DebugFormat(
+                "[GATEKEEPER SERVICE]: Destination {0} is ok for {1}", destination.RegionName, aCircuit.Name);
+
+            //
+            // Adjust the visible name
+            //
+            if (account != null)
+            {
+                aCircuit.firstname = account.FirstName;
+                aCircuit.lastname = account.LastName;
+            }
+            if (account == null)
+            {
+                if (!aCircuit.lastname.StartsWith("@"))
+                    aCircuit.firstname = aCircuit.firstname + "." + aCircuit.lastname;
+                try
+                {
+                    Uri uri = new Uri(aCircuit.ServiceURLs["HomeURI"].ToString());
+                    aCircuit.lastname = "@" + uri.Authority;
+                }
+                catch
+                {
+                    m_log.WarnFormat("[GATEKEEPER SERVICE]: Malformed HomeURI (this should never happen): {0}", aCircuit.ServiceURLs["HomeURI"]);
+                    aCircuit.lastname = "@" + aCircuit.ServiceURLs["HomeURI"].ToString();
+                }
+            }
+
+            //
+            // Finally launch the agent at the destination
+            //
+            Constants.TeleportFlags loginFlag = isFirstLogin ? Constants.TeleportFlags.ViaLogin : Constants.TeleportFlags.ViaHGLogin;
+
+            // Preserve our TeleportFlags we have gathered so-far
+            loginFlag |= (Constants.TeleportFlags) aCircuit.teleportFlags;
+
+            m_log.DebugFormat("[GATEKEEPER SERVICE]: Launching {0}, Teleport Flags: {1}", aCircuit.Name, loginFlag);
+
+            string version;
+
+            if (!m_SimulationService.QueryAccess(
+                destination, aCircuit.AgentID, aCircuit.ServiceURLs["HomeURI"].ToString(), 
+                true, aCircuit.startpos, "SIMULATION/0.3", new List<UUID>(), out version, out reason))
+                return false;
+
+            return m_SimulationService.CreateAgent(source, destination, aCircuit, (uint)loginFlag, out reason);
+        }
+
+        protected bool Authenticate(AgentCircuitData aCircuit)
+        {
+            if (!CheckAddress(aCircuit.ServiceSessionID))
+                return false;
+
+            if (string.IsNullOrEmpty(aCircuit.IPAddress))
+            {
+                m_log.DebugFormat("[GATEKEEPER SERVICE]: Agent did not provide a client IP address.");
+                return false;
+            }
+
+            string userURL = string.Empty;
+            if (aCircuit.ServiceURLs.ContainsKey("HomeURI"))
+                userURL = aCircuit.ServiceURLs["HomeURI"].ToString();
+
+            if (userURL == string.Empty)
+            {
+                m_log.DebugFormat("[GATEKEEPER SERVICE]: Agent did not provide an authentication server URL");
+                return false;
+            }
+
+            if (userURL == m_ExternalName)
+            {
+                return m_UserAgentService.VerifyAgent(aCircuit.SessionID, aCircuit.ServiceSessionID);
+            }
+            else
+            {
+                IUserAgentService userAgentService = new UserAgentServiceConnector(userURL); 
+
+                try
+                {
+                    return userAgentService.VerifyAgent(aCircuit.SessionID, aCircuit.ServiceSessionID);
+                }
+                catch
+                {
+                    m_log.DebugFormat("[GATEKEEPER SERVICE]: Unable to contact authentication service at {0}", userURL);
+                    return false;
+                }
+            }
+        }
+
+        // Check that the service token was generated for *this* grid.
+        // If it wasn't then that's a fake agent.
+        protected bool CheckAddress(string serviceToken)
+        {
+            string[] parts = serviceToken.Split(new char[] { ';' });
+            if (parts.Length < 2)
+                return false;
+
+            char[] trailing_slash = new char[] { '/' };
+            string addressee = parts[0].TrimEnd(trailing_slash);
+            string externalname = m_ExternalName.TrimEnd(trailing_slash);
+            m_log.DebugFormat("[GATEKEEPER SERVICE]: Verifying {0} against {1}", addressee, externalname);
+
+            Uri uri;
+            try
+            {
+                uri = new Uri(addressee);
+            }
+            catch
+            {
+                m_log.DebugFormat("[GATEKEEPER SERVICE]: Visitor provided malformed service address {0}", addressee);
+                return false;
+            }
+
+            return string.Equals(uri.GetLeftPart(UriPartial.Authority), m_Uri.GetLeftPart(UriPartial.Authority), StringComparison.OrdinalIgnoreCase) ;
+        }
+
+        #endregion
+
+
+        #region Misc
+
+        private bool IsException(AgentCircuitData aCircuit, List<string> exceptions)
+        {
+            bool exception = false;
+            if (exceptions.Count > 0) // we have exceptions
+            {
+                // Retrieve the visitor's origin
+                string userURL = aCircuit.ServiceURLs["HomeURI"].ToString();
+                if (!userURL.EndsWith("/"))
+                    userURL += "/";
+
+                if (exceptions.Find(delegate(string s)
+                {
+                    if (!s.EndsWith("/"))
+                        s += "/";
+                    return s == userURL;
+                }) != null)
+                    exception = true;
+            }
+
+            return exception;
+        }
+
+        #endregion
+    }
+}
diff --git a/OpenSim/Services/HypergridService/HGAssetService.cs b/OpenSim/Services/HypergridService/HGAssetService.cs
new file mode 100644
index 0000000..b83fb1e
--- /dev/null
+++ b/OpenSim/Services/HypergridService/HGAssetService.cs
@@ -0,0 +1,193 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Reflection;
+using System.Xml;
+
+using Nini.Config;
+using log4net;
+using OpenMetaverse;
+
+using OpenSim.Framework;
+using OpenSim.Framework.Serialization.External;
+using OpenSim.Server.Base;
+using OpenSim.Services.Interfaces;
+using OpenSim.Services.AssetService;
+
+namespace OpenSim.Services.HypergridService
+{
+    /// <summary>
+    /// Hypergrid asset service. It serves the IAssetService interface,
+    /// but implements it in ways that are appropriate for inter-grid
+    /// asset exchanges.
+    /// </summary>
+    public class HGAssetService : OpenSim.Services.AssetService.AssetService, IAssetService
+    {
+        private static readonly ILog m_log =
+            LogManager.GetLogger(
+            MethodBase.GetCurrentMethod().DeclaringType);
+
+        private string m_HomeURL;
+        private IUserAccountService m_UserAccountService;
+
+        private UserAccountCache m_Cache;
+
+        private AssetPermissions m_AssetPerms;
+
+        public HGAssetService(IConfigSource config, string configName) : base(config, configName)
+        {
+            m_log.Debug("[HGAsset Service]: Starting");
+            IConfig assetConfig = config.Configs[configName];
+            if (assetConfig == null)
+                throw new Exception("No HGAssetService configuration");
+
+            string userAccountsDll = assetConfig.GetString("UserAccountsService", string.Empty);
+            if (userAccountsDll == string.Empty)
+                throw new Exception("Please specify UserAccountsService in HGAssetService configuration");
+
+            Object[] args = new Object[] { config };
+            m_UserAccountService = ServerUtils.LoadPlugin<IUserAccountService>(userAccountsDll, args);
+            if (m_UserAccountService == null)
+                throw new Exception(String.Format("Unable to create UserAccountService from {0}", userAccountsDll));
+
+            m_HomeURL = Util.GetConfigVarFromSections<string>(config, "HomeURI",
+                new string[] { "Startup", "Hypergrid", configName }, string.Empty);
+            if (m_HomeURL == string.Empty)
+                throw new Exception("[HGAssetService] No HomeURI specified");
+
+            m_Cache = UserAccountCache.CreateUserAccountCache(m_UserAccountService);
+
+            // Permissions
+            m_AssetPerms = new AssetPermissions(assetConfig);
+
+        }
+
+        #region IAssetService overrides
+        public override AssetBase Get(string id)
+        {
+            AssetBase asset = base.Get(id);
+
+            if (asset == null)
+                return null;
+
+            if (!m_AssetPerms.AllowedExport(asset.Type))
+                return null;
+
+            if (asset.Metadata.Type == (sbyte)AssetType.Object)
+                asset.Data = AdjustIdentifiers(asset.Data);
+
+            AdjustIdentifiers(asset.Metadata);
+
+            return asset;
+        }
+
+        public override AssetMetadata GetMetadata(string id)
+        {
+            AssetMetadata meta = base.GetMetadata(id);
+
+            if (meta == null)
+                return null;
+
+            AdjustIdentifiers(meta);
+
+            return meta;
+        }
+
+        public override byte[] GetData(string id)
+        {
+            AssetBase asset = Get(id);
+
+            if (asset == null)
+                return null;
+
+            if (!m_AssetPerms.AllowedExport(asset.Type))
+                return null;
+
+            // Deal with bug introduced in Oct. 20 (1eb3e6cc43e2a7b4053bc1185c7c88e22356c5e8)
+            // Fix bad assets before sending them elsewhere
+            if (asset.Type == (int)AssetType.Object && asset.Data != null)
+            {
+                string xml = ExternalRepresentationUtils.SanitizeXml(Utils.BytesToString(asset.Data));
+                asset.Data = Utils.StringToBytes(xml);
+            }
+
+            return asset.Data;
+        }
+
+        //public virtual bool Get(string id, Object sender, AssetRetrieved handler)
+
+        public override string Store(AssetBase asset)
+        {
+            if (!m_AssetPerms.AllowedImport(asset.Type))
+                return string.Empty;
+
+            // Deal with bug introduced in Oct. 20 (1eb3e6cc43e2a7b4053bc1185c7c88e22356c5e8)
+            // Fix bad assets before storing on this server
+            if (asset.Type == (int)AssetType.Object && asset.Data != null)
+            {
+                string xml = ExternalRepresentationUtils.SanitizeXml(Utils.BytesToString(asset.Data));
+                asset.Data = Utils.StringToBytes(xml);
+            }
+
+            return base.Store(asset);
+        }
+
+        public override bool Delete(string id)
+        {
+            // NOGO
+            return false;
+        }
+
+        #endregion 
+
+        protected void AdjustIdentifiers(AssetMetadata meta)
+        {
+            if (meta == null || m_Cache == null)
+                return;
+
+            UserAccount creator = m_Cache.GetUser(meta.CreatorID);
+            if (creator != null)
+                meta.CreatorID = meta.CreatorID + ";" + m_HomeURL + "/" + creator.FirstName + " " + creator.LastName;
+        }
+
+        // Only for Object
+        protected byte[] AdjustIdentifiers(byte[] data)
+        {
+            string xml = Utils.BytesToString(data);
+
+            // Deal with bug introduced in Oct. 20 (1eb3e6cc43e2a7b4053bc1185c7c88e22356c5e8)
+            // Fix bad assets before sending them elsewhere
+            xml = ExternalRepresentationUtils.SanitizeXml(xml);
+
+            return Utils.StringToBytes(ExternalRepresentationUtils.RewriteSOP(xml, "HGAssetService", m_HomeURL, m_Cache, UUID.Zero));
+        }
+
+    }
+
+}
diff --git a/OpenSim/Services/HypergridService/HGFSAssetService.cs b/OpenSim/Services/HypergridService/HGFSAssetService.cs
new file mode 100644
index 0000000..54e8ccb
--- /dev/null
+++ b/OpenSim/Services/HypergridService/HGFSAssetService.cs
@@ -0,0 +1,189 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+using System;
+using System.Reflection;
+
+using Nini.Config;
+using log4net;
+using OpenMetaverse;
+
+using OpenSim.Framework;
+using OpenSim.Framework.Serialization.External;
+using OpenSim.Server.Base;
+using OpenSim.Services.Interfaces;
+using OpenSim.Services.FSAssetService;
+
+namespace OpenSim.Services.HypergridService
+{
+    /// <summary>
+    /// Hypergrid asset service. It serves the IAssetService interface,
+    /// but implements it in ways that are appropriate for inter-grid
+    /// asset exchanges. This version is for FSAssets.
+    /// </summary>
+    public class HGFSAssetService : FSAssetConnector, IAssetService
+    {
+        private static readonly ILog m_log =
+            LogManager.GetLogger(
+            MethodBase.GetCurrentMethod().DeclaringType);
+
+        private string m_HomeURL;
+        private IUserAccountService m_UserAccountService;
+
+        private UserAccountCache m_Cache;
+
+        private AssetPermissions m_AssetPerms;
+
+        public HGFSAssetService(IConfigSource config, string configName) : base(config, "AssetService")
+        {
+            m_log.Debug("[HGAsset Service]: Starting in FSAsset mode");
+            IConfig assetConfig = config.Configs[configName];
+            if (assetConfig == null)
+                throw new Exception("No HGAssetService configuration");
+
+            string userAccountsDll = assetConfig.GetString("UserAccountsService", string.Empty);
+            if (userAccountsDll == string.Empty)
+                throw new Exception("Please specify UserAccountsService in HGAssetService configuration");
+
+            Object[] args = new Object[] { config };
+            m_UserAccountService = ServerUtils.LoadPlugin<IUserAccountService>(userAccountsDll, args);
+            if (m_UserAccountService == null)
+                throw new Exception(String.Format("Unable to create UserAccountService from {0}", userAccountsDll));
+
+            m_HomeURL = Util.GetConfigVarFromSections<string>(config, "HomeURI",
+                new string[] { "Startup", "Hypergrid", configName }, string.Empty);
+            if (m_HomeURL == string.Empty)
+                throw new Exception("[HGAssetService] No HomeURI specified");
+
+            m_Cache = UserAccountCache.CreateUserAccountCache(m_UserAccountService);
+
+            // Permissions
+            m_AssetPerms = new AssetPermissions(assetConfig);
+        }
+
+        #region IAssetService overrides
+        public override AssetBase Get(string id)
+        {
+            AssetBase asset = base.Get(id);
+
+            if (asset == null)
+                return null;
+
+            if (!m_AssetPerms.AllowedExport(asset.Type))
+                return null;
+
+            if (asset.Metadata.Type == (sbyte)AssetType.Object)
+                asset.Data = AdjustIdentifiers(asset.Data);
+
+            AdjustIdentifiers(asset.Metadata);
+
+            return asset;
+        }
+
+        public override AssetMetadata GetMetadata(string id)
+        {
+            AssetMetadata meta = base.GetMetadata(id);
+
+            if (meta == null)
+                return null;
+
+            AdjustIdentifiers(meta);
+
+            return meta;
+        }
+
+        public override byte[] GetData(string id)
+        {
+            AssetBase asset = Get(id);
+
+            if (asset == null)
+                return null;
+
+            if (!m_AssetPerms.AllowedExport(asset.Type))
+                return null;
+
+            // Deal with bug introduced in Oct. 20 (1eb3e6cc43e2a7b4053bc1185c7c88e22356c5e8)
+            // Fix bad assets before sending them elsewhere
+            if (asset.Type == (int)AssetType.Object && asset.Data != null)
+            {
+                string xml = ExternalRepresentationUtils.SanitizeXml(Utils.BytesToString(asset.Data));
+                asset.Data = Utils.StringToBytes(xml);
+            }
+
+            return asset.Data;
+        }
+
+        //public virtual bool Get(string id, Object sender, AssetRetrieved handler)
+
+        public override string Store(AssetBase asset)
+        {
+            if (!m_AssetPerms.AllowedImport(asset.Type))
+                return string.Empty;
+
+            // Deal with bug introduced in Oct. 20 (1eb3e6cc43e2a7b4053bc1185c7c88e22356c5e8)
+            // Fix bad assets before storing on this server
+            if (asset.Type == (int)AssetType.Object && asset.Data != null)
+            {
+                string xml = ExternalRepresentationUtils.SanitizeXml(Utils.BytesToString(asset.Data));
+                asset.Data = Utils.StringToBytes(xml);
+            }
+
+            return base.Store(asset);
+        }
+
+        public override bool Delete(string id)
+        {
+            // NOGO
+            return false;
+        }
+
+        #endregion 
+
+        protected void AdjustIdentifiers(AssetMetadata meta)
+        {
+            if (meta == null || m_Cache == null)
+                return;
+
+            UserAccount creator = m_Cache.GetUser(meta.CreatorID);
+            if (creator != null)
+                meta.CreatorID = meta.CreatorID + ";" + m_HomeURL + "/" + creator.FirstName + " " + creator.LastName;
+        }
+
+        // Only for Object
+        protected byte[] AdjustIdentifiers(byte[] data)
+        {
+            string xml = Utils.BytesToString(data);
+
+            // Deal with bug introduced in Oct. 20 (1eb3e6cc43e2a7b4053bc1185c7c88e22356c5e8)
+            // Fix bad assets before sending them elsewhere
+            xml = ExternalRepresentationUtils.SanitizeXml(xml);
+
+            return Utils.StringToBytes(ExternalRepresentationUtils.RewriteSOP(xml, "HGAssetService", m_HomeURL, m_Cache, UUID.Zero));
+        }
+
+    }
+
+}
diff --git a/OpenSim/Services/HypergridService/HGFriendsService.cs b/OpenSim/Services/HypergridService/HGFriendsService.cs
new file mode 100644
index 0000000..6e35a88
--- /dev/null
+++ b/OpenSim/Services/HypergridService/HGFriendsService.cs
@@ -0,0 +1,409 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Net;
+using System.Reflection;
+
+using OpenSim.Framework;
+using OpenSim.Services.Connectors.Friends;
+using OpenSim.Services.Connectors.Hypergrid;
+using OpenSim.Services.Interfaces;
+using GridRegion = OpenSim.Services.Interfaces.GridRegion;
+using OpenSim.Server.Base;
+using FriendInfo = OpenSim.Services.Interfaces.FriendInfo;
+
+using OpenMetaverse;
+using log4net;
+using Nini.Config;
+
+namespace OpenSim.Services.HypergridService
+{
+    /// <summary>
+    /// W2W social networking
+    /// </summary>
+    public class HGFriendsService : IHGFriendsService
+    {
+        private static readonly ILog m_log =
+                LogManager.GetLogger(
+                MethodBase.GetCurrentMethod().DeclaringType);
+
+        static bool m_Initialized = false;
+
+        protected static IGridUserService m_GridUserService;
+        protected static IGridService m_GridService;
+        protected static IGatekeeperService m_GatekeeperService;
+        protected static IFriendsService m_FriendsService;
+        protected static IPresenceService m_PresenceService;
+        protected static IUserAccountService m_UserAccountService;
+        protected static IFriendsSimConnector m_FriendsLocalSimConnector; // standalone, points to HGFriendsModule
+        protected static FriendsSimConnector m_FriendsSimConnector; // grid
+
+        private static string m_ConfigName = "HGFriendsService";
+
+        public HGFriendsService(IConfigSource config, String configName, IFriendsSimConnector localSimConn)
+        {
+            if (m_FriendsLocalSimConnector == null)
+                m_FriendsLocalSimConnector = localSimConn;
+
+            if (!m_Initialized)
+            {
+                m_Initialized = true;
+
+                if (configName != String.Empty)
+                    m_ConfigName = configName;
+
+                Object[] args = new Object[] { config };
+
+                IConfig serverConfig = config.Configs[m_ConfigName];
+                if (serverConfig == null)
+                    throw new Exception(String.Format("No section {0} in config file", m_ConfigName));
+
+                string theService = serverConfig.GetString("FriendsService", string.Empty);
+                if (theService == String.Empty)
+                    throw new Exception("No FriendsService in config file " + m_ConfigName);
+                m_FriendsService = ServerUtils.LoadPlugin<IFriendsService>(theService, args);
+
+                theService = serverConfig.GetString("UserAccountService", string.Empty);
+                if (theService == String.Empty)
+                    throw new Exception("No UserAccountService in " + m_ConfigName);
+                m_UserAccountService = ServerUtils.LoadPlugin<IUserAccountService>(theService, args);
+
+                theService = serverConfig.GetString("GridService", string.Empty);
+                if (theService == String.Empty)
+                    throw new Exception("No GridService in " + m_ConfigName);
+                m_GridService = ServerUtils.LoadPlugin<IGridService>(theService, args);
+
+                theService = serverConfig.GetString("PresenceService", string.Empty);
+                if (theService == String.Empty)
+                    throw new Exception("No PresenceService in " + m_ConfigName);
+                m_PresenceService = ServerUtils.LoadPlugin<IPresenceService>(theService, args);
+
+                m_FriendsSimConnector = new FriendsSimConnector();
+
+                m_log.DebugFormat("[HGFRIENDS SERVICE]: Starting...");
+
+            }
+        }
+
+        #region IHGFriendsService
+
+        public int GetFriendPerms(UUID userID, UUID friendID)
+        {
+            FriendInfo[] friendsInfo = m_FriendsService.GetFriends(userID);
+            foreach (FriendInfo finfo in friendsInfo)
+            {
+                if (finfo.Friend.StartsWith(friendID.ToString()))
+                    return finfo.TheirFlags;
+            }
+            return -1;
+        }
+
+        public bool NewFriendship(FriendInfo friend, bool verified)
+        {
+            UUID friendID;
+            string tmp = string.Empty, url = String.Empty, first = String.Empty, last = String.Empty;
+            if (!Util.ParseUniversalUserIdentifier(friend.Friend, out friendID, out url, out first, out last, out tmp))
+                return false;
+
+            m_log.DebugFormat("[HGFRIENDS SERVICE]: New friendship {0} {1} ({2})", friend.PrincipalID, friend.Friend, verified);
+
+            // Does the friendship already exist?
+            FriendInfo[] finfos = m_FriendsService.GetFriends(friend.PrincipalID);
+            foreach (FriendInfo finfo in finfos)
+            {
+                if (finfo.Friend.StartsWith(friendID.ToString()))
+                    return false;
+            }
+            // Verified user session. But the user needs to confirm friendship when he gets home
+            if (verified)
+                return m_FriendsService.StoreFriend(friend.PrincipalID.ToString(), friend.Friend, 0);
+
+            // Does the reverted friendship exist? meaning that this user initiated the request
+            finfos = m_FriendsService.GetFriends(friendID);
+            bool userInitiatedOffer = false;
+            foreach (FriendInfo finfo in finfos)
+            {
+                if (friend.Friend.StartsWith(finfo.PrincipalID.ToString()) && finfo.Friend.StartsWith(friend.PrincipalID.ToString()) && finfo.TheirFlags == -1)
+                {
+                    userInitiatedOffer = true;
+                    // Let's delete the existing friendship relations that was stored
+                    m_FriendsService.Delete(friendID, finfo.Friend);
+                    break;
+                }
+            }
+
+            if (userInitiatedOffer)
+            {
+                m_FriendsService.StoreFriend(friend.PrincipalID.ToString(), friend.Friend, 1);
+                m_FriendsService.StoreFriend(friend.Friend, friend.PrincipalID.ToString(), 1);
+                // notify the user
+                ForwardToSim("ApproveFriendshipRequest", friendID, Util.UniversalName(first, last, url), "", friend.PrincipalID, "");
+                return true;
+            }
+            return false;
+        }
+
+        public bool DeleteFriendship(FriendInfo friend, string secret)
+        {
+            FriendInfo[] finfos = m_FriendsService.GetFriends(friend.PrincipalID);
+            foreach (FriendInfo finfo in finfos)
+            {
+                // We check the secret here. Or if the friendship request was initiated here, and was declined
+                if (finfo.Friend.StartsWith(friend.Friend) && finfo.Friend.EndsWith(secret))
+                {
+                    m_log.DebugFormat("[HGFRIENDS SERVICE]: Delete friendship {0} {1}", friend.PrincipalID, friend.Friend);
+                    m_FriendsService.Delete(friend.PrincipalID, finfo.Friend);
+                    m_FriendsService.Delete(finfo.Friend, friend.PrincipalID.ToString());
+
+                    return true;
+                }
+            }
+
+            return false;
+        }
+
+        public bool FriendshipOffered(UUID fromID, string fromName, UUID toID, string message)
+        {
+            UserAccount account = m_UserAccountService.GetUserAccount(UUID.Zero, toID);
+            if (account == null)
+                return false;
+
+            // OK, we have that user here.
+            // So let's send back the call, but start a thread to continue
+            // with the verification and the actual action.
+
+            Util.FireAndForget(
+                o => ProcessFriendshipOffered(fromID, fromName, toID, message), null, "HGFriendsService.ProcessFriendshipOffered");
+
+            return true;
+        }
+
+        public bool ValidateFriendshipOffered(UUID fromID, UUID toID)
+        {
+            FriendInfo[] finfos = m_FriendsService.GetFriends(toID.ToString());
+            foreach (FriendInfo fi in finfos)
+            {
+                if (fi.Friend.StartsWith(fromID.ToString()) && fi.TheirFlags == -1)
+                    return true;
+            }
+            return false;
+        }
+
+        public List<UUID> StatusNotification(List<string> friends, UUID foreignUserID, bool online)
+        {
+            if (m_FriendsService == null || m_PresenceService == null)
+            {
+                m_log.WarnFormat("[HGFRIENDS SERVICE]: Unable to perform status notifications because friends or presence services are missing");
+                return new List<UUID>();
+            }
+
+            // Let's unblock the caller right now, and take it from here async
+
+            List<UUID> localFriendsOnline = new List<UUID>();
+
+            m_log.DebugFormat("[HGFRIENDS SERVICE]: Status notification: foreign user {0} wants to notify {1} local friends of {2} status", 
+                foreignUserID, friends.Count, (online ? "online" : "offline"));
+
+            // First, let's double check that the reported friends are, indeed, friends of that user
+            // And let's check that the secret matches
+            List<string> usersToBeNotified = new List<string>();
+            foreach (string uui in friends)
+            {
+                UUID localUserID;
+                string secret = string.Empty, tmp = string.Empty;
+                if (Util.ParseUniversalUserIdentifier(uui, out localUserID, out tmp, out tmp, out tmp, out secret))
+                {
+                    FriendInfo[] friendInfos = m_FriendsService.GetFriends(localUserID);
+                    foreach (FriendInfo finfo in friendInfos)
+                    {
+                        if (finfo.Friend.StartsWith(foreignUserID.ToString()) && finfo.Friend.EndsWith(secret))
+                        {
+                            // great!
+                            usersToBeNotified.Add(localUserID.ToString());
+                        }
+                    }
+                }
+            }
+
+            // Now, let's send the notifications
+            //m_log.DebugFormat("[HGFRIENDS SERVICE]: Status notification: user has {0} local friends", usersToBeNotified.Count);
+
+            // First, let's send notifications to local users who are online in the home grid
+            PresenceInfo[] friendSessions = m_PresenceService.GetAgents(usersToBeNotified.ToArray());
+            if (friendSessions != null && friendSessions.Length > 0)
+            {
+                PresenceInfo friendSession = null;
+                foreach (PresenceInfo pinfo in friendSessions)
+                    if (pinfo.RegionID != UUID.Zero) // let's guard against traveling agents
+                    {
+                        friendSession = pinfo;
+                        break;
+                    }
+
+                if (friendSession != null)
+                {
+                    ForwardStatusNotificationToSim(friendSession.RegionID, foreignUserID, friendSession.UserID, online);
+                    usersToBeNotified.Remove(friendSession.UserID.ToString());
+                    UUID id;
+                    if (UUID.TryParse(friendSession.UserID, out id))
+                        localFriendsOnline.Add(id);
+
+                }
+            }
+
+//            // Lastly, let's notify the rest who may be online somewhere else
+//            foreach (string user in usersToBeNotified)
+//            {
+//                UUID id = new UUID(user);
+//                //m_UserAgentService.LocateUser(id);
+//                //etc...
+//                //if (m_TravelingAgents.ContainsKey(id) && m_TravelingAgents[id].GridExternalName != m_GridName)
+//                //{
+//                //    string url = m_TravelingAgents[id].GridExternalName;
+//                //    // forward
+//                //}
+//                //m_log.WarnFormat("[HGFRIENDS SERVICE]: User {0} is visiting another grid. HG Status notifications still not implemented.", user);
+//            }
+
+            // and finally, let's send the online friends
+            if (online)
+            {
+                return localFriendsOnline;
+            }
+            else
+                return new List<UUID>();
+        }
+
+        #endregion IHGFriendsService
+
+        #region Aux
+
+        private void ProcessFriendshipOffered(UUID fromID, String fromName, UUID toID, String message)
+        {
+            // Great, it's a genuine request. Let's proceed.
+            // But now we need to confirm that the requester is who he says he is
+            // before we act on the friendship request.
+
+            if (!fromName.Contains("@"))
+                return;
+
+            string[] parts = fromName.Split(new char[] {'@'});
+            if (parts.Length != 2)
+                return;
+
+            string uriStr = "http://" + parts[1];
+            try
+            {
+                new Uri(uriStr);
+            }
+            catch (UriFormatException)
+            {
+                return;
+            }
+
+            UserAgentServiceConnector uasConn = new UserAgentServiceConnector(uriStr);
+            Dictionary<string, object> servers = uasConn.GetServerURLs(fromID);
+            if (!servers.ContainsKey("FriendsServerURI"))
+                return;
+
+            HGFriendsServicesConnector friendsConn = new HGFriendsServicesConnector(servers["FriendsServerURI"].ToString());
+            if (!friendsConn.ValidateFriendshipOffered(fromID, toID))
+            {
+                m_log.WarnFormat("[HGFRIENDS SERVICE]: Friendship request from {0} to {1} is invalid. Impersonations?", fromID, toID);
+                return;
+            }
+
+            string fromUUI = Util.UniversalIdentifier(fromID, parts[0], "@" + parts[1], uriStr);
+            // OK, we're good!
+            ForwardToSim("FriendshipOffered", fromID, fromName, fromUUI, toID, message);
+        }
+
+        private bool ForwardToSim(string op, UUID fromID, string name, String fromUUI, UUID toID, string message)
+        {
+            PresenceInfo session = null;
+            GridRegion region = null;
+            PresenceInfo[] sessions = m_PresenceService.GetAgents(new string[] { toID.ToString() });
+            if (sessions != null && sessions.Length > 0)
+                session = sessions[0];
+            if (session != null)
+                region = m_GridService.GetRegionByUUID(UUID.Zero, session.RegionID);
+
+            switch (op)
+            {
+                case "FriendshipOffered":
+                    // Let's store backwards
+                    string secret = UUID.Random().ToString().Substring(0, 8);
+                    m_FriendsService.StoreFriend(toID.ToString(), fromUUI + ";" + secret, 0);
+                    if (m_FriendsLocalSimConnector != null) // standalone
+                    {
+                        GridInstantMessage im = new GridInstantMessage(null, fromID, name, toID,
+                            (byte)InstantMessageDialog.FriendshipOffered, message, false, Vector3.Zero);
+                        // !! HACK
+                        im.imSessionID = im.fromAgentID;
+                        return m_FriendsLocalSimConnector.LocalFriendshipOffered(toID, im);
+                    }
+                    else if (region != null) // grid
+                        return m_FriendsSimConnector.FriendshipOffered(region, fromID, toID, message, name);
+                    break;
+                case "ApproveFriendshipRequest":
+                    if (m_FriendsLocalSimConnector != null) // standalone
+                        return m_FriendsLocalSimConnector.LocalFriendshipApproved(fromID, name, toID);
+                    else if (region != null) //grid
+                        return m_FriendsSimConnector.FriendshipApproved(region, fromID, name, toID);
+                    break;
+            }
+
+            return false;
+        }
+
+        protected void ForwardStatusNotificationToSim(UUID regionID, UUID foreignUserID, string user, bool online)
+        {
+            UUID userID;
+            if (UUID.TryParse(user, out userID))
+            {
+                if (m_FriendsLocalSimConnector != null)
+                {
+                    m_log.DebugFormat("[HGFRIENDS SERVICE]: Local Notify, user {0} is {1}", foreignUserID, (online ? "online" : "offline"));
+                    m_FriendsLocalSimConnector.StatusNotify(foreignUserID, userID, online);
+                }
+                else
+                {
+                    GridRegion region = m_GridService.GetRegionByUUID(UUID.Zero /* !!! */, regionID);
+                    if (region != null)
+                    {
+                        m_log.DebugFormat("[HGFRIENDS SERVICE]: Remote Notify to region {0}, user {1} is {2}", region.RegionName, foreignUserID, (online ? "online" : "offline"));
+                        m_FriendsSimConnector.StatusNotify(region, foreignUserID, userID.ToString(), online);
+                    }
+                }
+            }
+        }
+
+        #endregion Aux
+    }
+}
diff --git a/OpenSim/Services/HypergridService/HGInstantMessageService.cs b/OpenSim/Services/HypergridService/HGInstantMessageService.cs
new file mode 100644
index 0000000..32ca09a
--- /dev/null
+++ b/OpenSim/Services/HypergridService/HGInstantMessageService.cs
@@ -0,0 +1,376 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Net;
+using System.Reflection;
+
+using OpenSim.Framework;
+using OpenSim.Services.Connectors.Friends;
+using OpenSim.Services.Connectors.Hypergrid;
+using OpenSim.Services.Interfaces;
+using OpenSim.Services.Connectors.InstantMessage;
+using GridRegion = OpenSim.Services.Interfaces.GridRegion;
+using OpenSim.Server.Base;
+using FriendInfo = OpenSim.Services.Interfaces.FriendInfo;
+
+using OpenMetaverse;
+using log4net;
+using Nini.Config;
+
+namespace OpenSim.Services.HypergridService
+{
+    /// <summary>
+    /// Inter-grid IM
+    /// </summary>
+    public class HGInstantMessageService : IInstantMessage
+    {
+        private static readonly ILog m_log =
+                LogManager.GetLogger(
+                MethodBase.GetCurrentMethod().DeclaringType);
+
+        private const double CACHE_EXPIRATION_SECONDS = 120000.0; // 33 hours
+
+        static bool m_Initialized = false;
+
+        protected static IGridService m_GridService;
+        protected static IPresenceService m_PresenceService;
+        protected static IUserAgentService m_UserAgentService;
+        protected static IOfflineIMService m_OfflineIMService;
+
+        protected static IInstantMessageSimConnector m_IMSimConnector;
+
+        protected static Dictionary<UUID, object> m_UserLocationMap = new Dictionary<UUID, object>();
+        private static ExpiringCache<UUID, GridRegion> m_RegionCache;
+
+        private static bool m_ForwardOfflineGroupMessages;
+        private static bool m_InGatekeeper;
+
+        public HGInstantMessageService(IConfigSource config)
+            : this(config, null)
+        {
+        }
+
+        public HGInstantMessageService(IConfigSource config, IInstantMessageSimConnector imConnector)
+        {
+            if (imConnector != null)
+                m_IMSimConnector = imConnector;
+
+            if (!m_Initialized)
+            {
+                m_Initialized = true;
+
+                IConfig serverConfig = config.Configs["HGInstantMessageService"];
+                if (serverConfig == null)
+                    throw new Exception(String.Format("No section HGInstantMessageService in config file"));
+
+                string gridService = serverConfig.GetString("GridService", String.Empty);
+                string presenceService = serverConfig.GetString("PresenceService", String.Empty);
+                string userAgentService = serverConfig.GetString("UserAgentService", String.Empty);
+                m_InGatekeeper = serverConfig.GetBoolean("InGatekeeper", false);
+                m_log.DebugFormat("[HG IM SERVICE]: Starting... InRobust? {0}", m_InGatekeeper);
+
+                if (gridService == string.Empty || presenceService == string.Empty)
+                    throw new Exception(String.Format("Incomplete specifications, InstantMessage Service cannot function."));
+
+                Object[] args = new Object[] { config };
+                m_GridService = ServerUtils.LoadPlugin<IGridService>(gridService, args);
+                m_PresenceService = ServerUtils.LoadPlugin<IPresenceService>(presenceService, args);
+                try
+                {
+                    m_UserAgentService = ServerUtils.LoadPlugin<IUserAgentService>(userAgentService, args);
+                }
+                catch
+                {
+                    m_log.WarnFormat("[HG IM SERVICE]: Unable to create User Agent Service. Missing config var  in [HGInstantMessageService]?");
+                }
+
+                m_RegionCache = new ExpiringCache<UUID, GridRegion>();
+
+                IConfig cnf = config.Configs["Messaging"];
+                if (cnf == null)
+                {
+                    return;
+                }
+
+                m_ForwardOfflineGroupMessages = cnf.GetBoolean("ForwardOfflineGroupMessages", false);
+
+                if (m_InGatekeeper)
+                {
+                    string offlineIMService = cnf.GetString("OfflineIMService", string.Empty);
+                    if (offlineIMService != string.Empty)
+                        m_OfflineIMService = ServerUtils.LoadPlugin<IOfflineIMService>(offlineIMService, args);
+                }
+            }
+        }
+
+        public bool IncomingInstantMessage(GridInstantMessage im)
+        {
+//            m_log.DebugFormat("[HG IM SERVICE]: Received message from {0} to {1}", im.fromAgentID, im.toAgentID);
+//            UUID toAgentID = new UUID(im.toAgentID);
+
+            bool success = false;
+            if (m_IMSimConnector != null)
+            {
+                //m_log.DebugFormat("[XXX] SendIMToRegion local im connector");
+                success = m_IMSimConnector.SendInstantMessage(im);
+            }
+            else
+            {
+                success = TrySendInstantMessage(im, "", true, false);
+            }
+
+            if (!success && m_InGatekeeper) // we do this only in the Gatekeeper IM service
+                UndeliveredMessage(im);
+
+            return success;
+        }
+
+        public bool OutgoingInstantMessage(GridInstantMessage im, string url, bool foreigner)
+        {
+//            m_log.DebugFormat("[HG IM SERVICE]: Sending message from {0} to {1}@{2}", im.fromAgentID, im.toAgentID, url);
+            if (url != string.Empty)
+                return TrySendInstantMessage(im, url, true, foreigner);
+            else
+            {
+                PresenceInfo upd = new PresenceInfo();
+                upd.RegionID = UUID.Zero;
+                return TrySendInstantMessage(im, upd, true, foreigner);
+            }
+
+        }
+
+        protected bool TrySendInstantMessage(GridInstantMessage im, object previousLocation, bool firstTime, bool foreigner)
+        {
+            UUID toAgentID = new UUID(im.toAgentID);
+
+            PresenceInfo upd = null;
+            string url = string.Empty;
+
+            bool lookupAgent = false;
+
+            lock (m_UserLocationMap)
+            {
+                if (m_UserLocationMap.ContainsKey(toAgentID))
+                {
+                    object o = m_UserLocationMap[toAgentID];
+                    if (o is PresenceInfo)
+                        upd = (PresenceInfo)o;
+                    else if (o is string)
+                        url = (string)o;
+
+                    // We need to compare the current location with the previous 
+                    // or the recursive loop will never end because it will never try to lookup the agent again
+                    if (!firstTime)
+                    {
+                        lookupAgent = true;
+                        upd = null;
+                    }
+                }
+                else
+                {
+                    lookupAgent = true;
+                }
+            }
+
+            //m_log.DebugFormat("[XXX] Neeed lookup ? {0}", (lookupAgent ? "yes" : "no"));
+
+            // Are we needing to look-up an agent?
+            if (lookupAgent)
+            {
+                // Non-cached user agent lookup.
+                PresenceInfo[] presences = m_PresenceService.GetAgents(new string[] { toAgentID.ToString() });
+                if (presences != null && presences.Length > 0)
+                {
+                    foreach (PresenceInfo p in presences)
+                    {
+                        if (p.RegionID != UUID.Zero)
+                        {
+                            //m_log.DebugFormat("[XXX]: Found presence in {0}", p.RegionID);
+                            upd = p;
+                            break;
+                        }
+                    }
+                }
+
+                if (upd == null && !foreigner)
+                {
+                    // Let's check with the UAS if the user is elsewhere
+                    m_log.DebugFormat("[HG IM SERVICE]: User is not present. Checking location with User Agent service");
+                    try
+                    {
+                        url = m_UserAgentService.LocateUser(toAgentID);
+                    }
+                    catch (Exception e)
+                    {
+                        m_log.Warn("[HG IM SERVICE]: LocateUser call failed ", e);
+                        url = string.Empty;
+                    }
+                }
+
+                // check if we've tried this before..
+                // This is one way to end the recursive loop
+                //
+                if (!firstTime && ((previousLocation is PresenceInfo && upd != null && upd.RegionID == ((PresenceInfo)previousLocation).RegionID) ||
+                                    (previousLocation is string && upd == null && previousLocation.Equals(url))))
+                {
+                    // m_log.Error("[GRID INSTANT MESSAGE]: Unable to deliver an instant message");
+                    m_log.DebugFormat("[HG IM SERVICE]: Fail 2 {0} {1}", previousLocation, url);
+
+                    return false;
+                }
+            }
+
+            if (upd != null)
+            {
+                // ok, the user is around somewhere. Let's send back the reply with "success"
+                // even though the IM may still fail. Just don't keep the caller waiting for
+                // the entire time we're trying to deliver the IM
+                return SendIMToRegion(upd, im, toAgentID, foreigner);
+            }
+            else if (url != string.Empty)
+            {
+                // ok, the user is around somewhere. Let's send back the reply with "success"
+                // even though the IM may still fail. Just don't keep the caller waiting for
+                // the entire time we're trying to deliver the IM
+                return ForwardIMToGrid(url, im, toAgentID, foreigner);
+            }
+            else if (firstTime && previousLocation is string && (string)previousLocation != string.Empty)
+            {
+                return ForwardIMToGrid((string)previousLocation, im, toAgentID, foreigner);
+            }
+            else
+                m_log.DebugFormat("[HG IM SERVICE]: Unable to locate user {0}", toAgentID);
+            return false;
+        }
+
+        bool SendIMToRegion(PresenceInfo upd, GridInstantMessage im, UUID toAgentID, bool foreigner)
+        {
+            bool imresult = false;
+            GridRegion reginfo = null;
+            if (!m_RegionCache.TryGetValue(upd.RegionID, out reginfo))
+            {
+                reginfo = m_GridService.GetRegionByUUID(UUID.Zero /*!!!*/, upd.RegionID);
+                if (reginfo != null)
+                    m_RegionCache.AddOrUpdate(upd.RegionID, reginfo, CACHE_EXPIRATION_SECONDS);
+            }
+
+            if (reginfo != null)
+            {
+                imresult = InstantMessageServiceConnector.SendInstantMessage(reginfo.ServerURI, im);
+            }
+            else
+            {
+                m_log.DebugFormat("[HG IM SERVICE]: Failed to deliver message to {0}", reginfo.ServerURI);
+                return false;
+            }
+
+            if (imresult)
+            {
+                // IM delivery successful, so store the Agent's location in our local cache.
+                lock (m_UserLocationMap)
+                {
+                    if (m_UserLocationMap.ContainsKey(toAgentID))
+                    {
+                        m_UserLocationMap[toAgentID] = upd;
+                    }
+                    else
+                    {
+                        m_UserLocationMap.Add(toAgentID, upd);
+                    }
+                }
+                return true;
+            }
+            else
+            {
+                // try again, but lookup user this time.
+                // Warning, this must call the Async version
+                // of this method or we'll be making thousands of threads
+                // The version within the spawned thread is SendGridInstantMessageViaXMLRPCAsync
+                // The version that spawns the thread is SendGridInstantMessageViaXMLRPC
+
+                // This is recursive!!!!!
+                return TrySendInstantMessage(im, upd, false, foreigner);
+            }
+        }
+
+        bool ForwardIMToGrid(string url, GridInstantMessage im, UUID toAgentID, bool foreigner)
+        {
+            if (InstantMessageServiceConnector.SendInstantMessage(url, im))
+            {
+                // IM delivery successful, so store the Agent's location in our local cache.
+                lock (m_UserLocationMap)
+                {
+                    if (m_UserLocationMap.ContainsKey(toAgentID))
+                    {
+                        m_UserLocationMap[toAgentID] = url;
+                    }
+                    else
+                    {
+                        m_UserLocationMap.Add(toAgentID, url);
+                    }
+                }
+
+                return true;
+            }
+            else
+            {
+                // try again, but lookup user this time.
+
+                // This is recursive!!!!!
+                return TrySendInstantMessage(im, url, false, foreigner);
+            }
+        }
+
+        private bool UndeliveredMessage(GridInstantMessage im)
+        {
+            if (m_OfflineIMService == null)
+                return false;
+
+            if (im.dialog != (byte)InstantMessageDialog.MessageFromObject &&
+                im.dialog != (byte)InstantMessageDialog.MessageFromAgent &&
+                im.dialog != (byte)InstantMessageDialog.GroupNotice &&
+                im.dialog != (byte)InstantMessageDialog.GroupInvitation &&
+                im.dialog != (byte)InstantMessageDialog.InventoryOffered)
+            {
+                return false;
+            }
+
+            if (!m_ForwardOfflineGroupMessages)
+            {
+                if (im.dialog == (byte)InstantMessageDialog.GroupNotice ||
+                    im.dialog == (byte)InstantMessageDialog.GroupInvitation)
+                    return false;
+            }
+
+//                m_log.DebugFormat("[HG IM SERVICE]: Message saved");
+            string reason = string.Empty;
+            return m_OfflineIMService.StoreMessage(im, out reason);
+        }
+    }
+}
\ No newline at end of file
diff --git a/OpenSim/Services/HypergridService/HGInventoryService.cs b/OpenSim/Services/HypergridService/HGInventoryService.cs
new file mode 100644
index 0000000..9158b41
--- /dev/null
+++ b/OpenSim/Services/HypergridService/HGInventoryService.cs
@@ -0,0 +1,321 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using OpenMetaverse;
+using log4net;
+using Nini.Config;
+using System.Reflection;
+using OpenSim.Services.Base;
+using OpenSim.Services.Interfaces;
+using OpenSim.Services.InventoryService;
+using OpenSim.Data;
+using OpenSim.Framework;
+using OpenSim.Server.Base;
+
+namespace OpenSim.Services.HypergridService
+{
+    /// <summary>
+    /// Hypergrid inventory service. It serves the IInventoryService interface,
+    /// but implements it in ways that are appropriate for inter-grid
+    /// inventory exchanges. Specifically, it does not performs deletions
+    /// and it responds to GetRootFolder requests with the ID of the
+    /// Suitcase folder, not the actual "My Inventory" folder.
+    /// </summary>
+    public class HGInventoryService : XInventoryService, IInventoryService
+    {
+        private static readonly ILog m_log =
+                LogManager.GetLogger(
+                MethodBase.GetCurrentMethod().DeclaringType);
+
+        private string m_HomeURL;
+        private IUserAccountService m_UserAccountService;
+
+        private UserAccountCache m_Cache;
+
+        public HGInventoryService(IConfigSource config, string configName)
+            : base(config, configName)
+        {
+            m_log.Debug("[HGInventory Service]: Starting");
+            if (configName != string.Empty)
+                m_ConfigName = configName;
+
+            //
+            // Try reading the [InventoryService] section, if it exists
+            //
+            IConfig invConfig = config.Configs[m_ConfigName];
+            if (invConfig != null)
+            {                
+                // realm = authConfig.GetString("Realm", realm);
+                string userAccountsDll = invConfig.GetString("UserAccountsService", string.Empty);
+                if (userAccountsDll == string.Empty)
+                    throw new Exception("Please specify UserAccountsService in HGInventoryService configuration");
+
+                Object[] args = new Object[] { config };
+                m_UserAccountService = ServerUtils.LoadPlugin<IUserAccountService>(userAccountsDll, args);
+                if (m_UserAccountService == null)
+                    throw new Exception(String.Format("Unable to create UserAccountService from {0}", userAccountsDll));
+
+                m_HomeURL = Util.GetConfigVarFromSections<string>(config, "HomeURI",
+                    new string[] { "Startup", "Hypergrid", m_ConfigName }, String.Empty); 
+
+                m_Cache = UserAccountCache.CreateUserAccountCache(m_UserAccountService);
+            }
+
+            m_log.Debug("[HG INVENTORY SERVICE]: Starting...");
+        }
+
+        public override bool CreateUserInventory(UUID principalID)
+        {
+            // NOGO
+            return false;
+        }
+
+
+        public override List<InventoryFolderBase> GetInventorySkeleton(UUID principalID)
+        {
+            // NOGO for this inventory service
+            return new List<InventoryFolderBase>();
+        }
+
+        public override InventoryFolderBase GetRootFolder(UUID principalID)
+        {
+            //m_log.DebugFormat("[HG INVENTORY SERVICE]: GetRootFolder for {0}", principalID);
+            // Warp! Root folder for travelers
+            XInventoryFolder[] folders = m_Database.GetFolders(
+                    new string[] { "agentID", "folderName"},
+                    new string[] { principalID.ToString(), "My Suitcase" });
+
+            if (folders.Length > 0)
+                return ConvertToOpenSim(folders[0]);
+            
+            // make one
+            XInventoryFolder suitcase = CreateFolder(principalID, UUID.Zero, (int)FolderType.Suitcase, "My Suitcase");
+            return ConvertToOpenSim(suitcase);
+        }
+
+        //private bool CreateSystemFolders(UUID principalID, XInventoryFolder suitcase)
+        //{
+
+        //    CreateFolder(principalID, suitcase.folderID, (int)AssetType.Animation, "Animations");
+        //    CreateFolder(principalID, suitcase.folderID, (int)AssetType.Bodypart, "Body Parts");
+        //    CreateFolder(principalID, suitcase.folderID, (int)AssetType.CallingCard, "Calling Cards");
+        //    CreateFolder(principalID, suitcase.folderID, (int)AssetType.Clothing, "Clothing");
+        //    CreateFolder(principalID, suitcase.folderID, (int)AssetType.Gesture, "Gestures");
+        //    CreateFolder(principalID, suitcase.folderID, (int)AssetType.Landmark, "Landmarks");
+        //    CreateFolder(principalID, suitcase.folderID, (int)AssetType.LostAndFoundFolder, "Lost And Found");
+        //    CreateFolder(principalID, suitcase.folderID, (int)AssetType.Notecard, "Notecards");
+        //    CreateFolder(principalID, suitcase.folderID, (int)AssetType.Object, "Objects");
+        //    CreateFolder(principalID, suitcase.folderID, (int)AssetType.SnapshotFolder, "Photo Album");
+        //    CreateFolder(principalID, suitcase.folderID, (int)AssetType.LSLText, "Scripts");
+        //    CreateFolder(principalID, suitcase.folderID, (int)AssetType.Sound, "Sounds");
+        //    CreateFolder(principalID, suitcase.folderID, (int)AssetType.Texture, "Textures");
+        //    CreateFolder(principalID, suitcase.folderID, (int)AssetType.TrashFolder, "Trash");
+
+        //    return true;
+        //}
+
+
+        public override InventoryFolderBase GetFolderForType(UUID principalID, FolderType type)
+        {
+            //m_log.DebugFormat("[HG INVENTORY SERVICE]: GetFolderForType for {0} {0}", principalID, type);
+            return GetRootFolder(principalID);
+        }
+
+        //
+        // Use the inherited methods
+        //
+        //public InventoryCollection GetFolderContent(UUID principalID, UUID folderID)
+        //{
+        //}
+
+        // NOGO
+        //
+        public override InventoryCollection[] GetMultipleFoldersContent(UUID principalID, UUID[] folderID)
+        {
+            return new InventoryCollection[0];
+        }
+        
+        //public List<InventoryItemBase> GetFolderItems(UUID principalID, UUID folderID)
+        //{
+        //}
+
+        //public override bool AddFolder(InventoryFolderBase folder)
+        //{
+        //    // Check if it's under the Suitcase folder
+        //    List<InventoryFolderBase> skel = base.GetInventorySkeleton(folder.Owner);
+        //    InventoryFolderBase suitcase = GetRootFolder(folder.Owner);
+        //    List<InventoryFolderBase> suitDescendents = GetDescendents(skel, suitcase.ID);
+
+        //    foreach (InventoryFolderBase f in suitDescendents)
+        //        if (folder.ParentID == f.ID)
+        //        {
+        //            XInventoryFolder xFolder = ConvertFromOpenSim(folder);
+        //            return m_Database.StoreFolder(xFolder);
+        //        }
+        //    return false;
+        //}
+
+        private List<InventoryFolderBase> GetDescendents(List<InventoryFolderBase> lst, UUID root)
+        {
+            List<InventoryFolderBase> direct = lst.FindAll(delegate(InventoryFolderBase f) { return f.ParentID == root; });
+            if (direct == null)
+                return new List<InventoryFolderBase>();
+
+            List<InventoryFolderBase> indirect = new List<InventoryFolderBase>();
+            foreach (InventoryFolderBase f in direct)
+                indirect.AddRange(GetDescendents(lst, f.ID));
+
+            direct.AddRange(indirect);
+            return direct;
+        }
+
+        // Use inherited method
+        //public bool UpdateFolder(InventoryFolderBase folder)
+        //{
+        //}
+
+        //public override bool MoveFolder(InventoryFolderBase folder)
+        //{
+        //    XInventoryFolder[] x = m_Database.GetFolders(
+        //            new string[] { "folderID" },
+        //            new string[] { folder.ID.ToString() });
+
+        //    if (x.Length == 0)
+        //        return false;
+
+        //    // Check if it's under the Suitcase folder
+        //    List<InventoryFolderBase> skel = base.GetInventorySkeleton(folder.Owner);
+        //    InventoryFolderBase suitcase = GetRootFolder(folder.Owner);
+        //    List<InventoryFolderBase> suitDescendents = GetDescendents(skel, suitcase.ID);
+
+        //    foreach (InventoryFolderBase f in suitDescendents)
+        //        if (folder.ParentID == f.ID)
+        //        {
+        //            x[0].parentFolderID = folder.ParentID;
+        //            return m_Database.StoreFolder(x[0]);
+        //        }
+
+        //    return false;
+        //}
+
+        public override bool DeleteFolders(UUID principalID, List<UUID> folderIDs)
+        {
+            // NOGO
+            return false;
+        }
+
+        public override bool PurgeFolder(InventoryFolderBase folder)
+        {
+            // NOGO
+            return false;
+        }
+
+        // Unfortunately we need to use the inherited method because of how DeRez works.
+        // The viewer sends the folderID hard-wired in the derez message
+        //public override bool AddItem(InventoryItemBase item)
+        //{
+        //    // Check if it's under the Suitcase folder
+        //    List<InventoryFolderBase> skel = base.GetInventorySkeleton(item.Owner);
+        //    InventoryFolderBase suitcase = GetRootFolder(item.Owner);
+        //    List<InventoryFolderBase> suitDescendents = GetDescendents(skel, suitcase.ID);
+
+        //    foreach (InventoryFolderBase f in suitDescendents)
+        //        if (item.Folder == f.ID)
+        //            return m_Database.StoreItem(ConvertFromOpenSim(item));
+
+        //    return false;
+        //}
+
+        //public override bool UpdateItem(InventoryItemBase item)
+        //{
+        //    // Check if it's under the Suitcase folder
+        //    List<InventoryFolderBase> skel = base.GetInventorySkeleton(item.Owner);
+        //    InventoryFolderBase suitcase = GetRootFolder(item.Owner);
+        //    List<InventoryFolderBase> suitDescendents = GetDescendents(skel, suitcase.ID);
+
+        //    foreach (InventoryFolderBase f in suitDescendents)
+        //        if (item.Folder == f.ID)
+        //            return m_Database.StoreItem(ConvertFromOpenSim(item));
+
+        //    return false;
+        //}
+
+        //public override bool MoveItems(UUID principalID, List<InventoryItemBase> items)
+        //{
+        //    // Principal is b0rked. *sigh*
+        //    //
+        //    // Let's assume they all have the same principal
+        //    // Check if it's under the Suitcase folder
+        //    List<InventoryFolderBase> skel = base.GetInventorySkeleton(items[0].Owner);
+        //    InventoryFolderBase suitcase = GetRootFolder(items[0].Owner);
+        //    List<InventoryFolderBase> suitDescendents = GetDescendents(skel, suitcase.ID);
+
+        //    foreach (InventoryItemBase i in items)
+        //    {
+        //        foreach (InventoryFolderBase f in suitDescendents)
+        //            if (i.Folder == f.ID)
+        //                m_Database.MoveItem(i.ID.ToString(), i.Folder.ToString());
+        //    }
+
+        //    return true;
+        //}
+
+        // Let these pass. Use inherited methods.
+        //public bool DeleteItems(UUID principalID, List<UUID> itemIDs)
+        //{
+        //}
+
+        public override InventoryItemBase GetItem(InventoryItemBase item)
+        {
+            InventoryItemBase it = base.GetItem(item);
+            if (it != null)
+            {
+                UserAccount user = m_Cache.GetUser(it.CreatorId);
+
+                // Adjust the creator data
+                if (user != null && it != null && string.IsNullOrEmpty(it.CreatorData))
+                    it.CreatorData = m_HomeURL + ";" + user.FirstName + " " + user.LastName;
+            }
+            return it;
+        }
+
+        //public InventoryFolderBase GetFolder(InventoryFolderBase folder)
+        //{
+        //}
+
+        //public List<InventoryItemBase> GetActiveGestures(UUID principalID)
+        //{
+        //}
+
+        //public int GetAssetPermissions(UUID principalID, UUID assetID)
+        //{
+        //}
+
+    }
+}
diff --git a/OpenSim/Services/HypergridService/HGSuitcaseInventoryService.cs b/OpenSim/Services/HypergridService/HGSuitcaseInventoryService.cs
new file mode 100644
index 0000000..40eb6d4
--- /dev/null
+++ b/OpenSim/Services/HypergridService/HGSuitcaseInventoryService.cs
@@ -0,0 +1,652 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using OpenMetaverse;
+using log4net;
+using Nini.Config;
+using System.Reflection;
+using OpenSim.Services.Base;
+using OpenSim.Services.Interfaces;
+using OpenSim.Services.InventoryService;
+using OpenSim.Data;
+using OpenSim.Framework;
+using OpenSim.Server.Base;
+
+namespace OpenSim.Services.HypergridService
+{
+    /// <summary>
+    /// Hypergrid inventory service. It serves the IInventoryService interface,
+    /// but implements it in ways that are appropriate for inter-grid
+    /// inventory exchanges. Specifically, it does not performs deletions
+    /// and it responds to GetRootFolder requests with the ID of the
+    /// Suitcase folder, not the actual "My Inventory" folder.
+    /// </summary>
+    public class HGSuitcaseInventoryService : XInventoryService, IInventoryService
+    {
+        private static readonly ILog m_log =
+                LogManager.GetLogger(
+                MethodBase.GetCurrentMethod().DeclaringType);
+
+//        private string m_HomeURL;
+        private IUserAccountService m_UserAccountService;
+        private IAvatarService m_AvatarService;
+
+//        private UserAccountCache m_Cache;
+
+        private ExpiringCache<UUID, List<XInventoryFolder>> m_SuitcaseTrees = new ExpiringCache<UUID, List<XInventoryFolder>>();
+        private ExpiringCache<UUID, AvatarAppearance> m_Appearances = new ExpiringCache<UUID, AvatarAppearance>();
+
+        public HGSuitcaseInventoryService(IConfigSource config, string configName)
+            : base(config, configName)
+        {
+            m_log.DebugFormat("[HG SUITCASE INVENTORY SERVICE]: Starting with config name {0}", configName);
+            if (configName != string.Empty)
+                m_ConfigName = configName;
+
+            if (m_Database == null)
+                m_log.ErrorFormat("[HG SUITCASE INVENTORY SERVICE]: m_Database is null!");
+
+            //
+            // Try reading the [InventoryService] section, if it exists
+            //
+            IConfig invConfig = config.Configs[m_ConfigName];
+            if (invConfig != null)
+            {
+                string userAccountsDll = invConfig.GetString("UserAccountsService", string.Empty);
+                if (userAccountsDll == string.Empty)
+                    throw new Exception("Please specify UserAccountsService in HGInventoryService configuration");
+
+                Object[] args = new Object[] { config };
+                m_UserAccountService = ServerUtils.LoadPlugin<IUserAccountService>(userAccountsDll, args);
+                if (m_UserAccountService == null)
+                    throw new Exception(String.Format("Unable to create UserAccountService from {0}", userAccountsDll));
+
+                string avatarDll = invConfig.GetString("AvatarService", string.Empty);
+                if (avatarDll == string.Empty)
+                    throw new Exception("Please specify AvatarService in HGInventoryService configuration");
+
+                m_AvatarService = ServerUtils.LoadPlugin<IAvatarService>(avatarDll, args);
+                if (m_AvatarService == null)
+                    throw new Exception(String.Format("Unable to create m_AvatarService from {0}", avatarDll));
+
+//                m_HomeURL = Util.GetConfigVarFromSections<string>(config, "HomeURI",
+//                    new string[] { "Startup", "Hypergrid", m_ConfigName }, String.Empty); 
+
+//                m_Cache = UserAccountCache.CreateUserAccountCache(m_UserAccountService);
+            }
+
+            m_log.Debug("[HG SUITCASE INVENTORY SERVICE]: Starting...");
+        }
+
+        public override bool CreateUserInventory(UUID principalID)
+        {
+            // NOGO
+            return false;
+        }
+
+        public override List<InventoryFolderBase> GetInventorySkeleton(UUID principalID)
+        {
+            XInventoryFolder suitcase = GetSuitcaseXFolder(principalID);
+
+            if (suitcase == null)
+            {
+                m_log.WarnFormat("[HG SUITCASE INVENTORY SERVICE]: Found no suitcase folder for user {0} when looking for inventory skeleton", principalID);
+                return null;
+            }
+
+            List<XInventoryFolder> tree = GetFolderTree(principalID, suitcase.folderID);
+            if (tree.Count == 0)
+                return null;
+
+            List<InventoryFolderBase> folders = new List<InventoryFolderBase>();
+            foreach (XInventoryFolder x in tree)
+            {
+                folders.Add(ConvertToOpenSim(x));
+            }
+
+            SetAsNormalFolder(suitcase);
+            folders.Add(ConvertToOpenSim(suitcase));
+
+            return folders;
+        }
+
+        public override InventoryFolderBase GetRootFolder(UUID principalID)
+        {
+            m_log.DebugFormat("[HG SUITCASE INVENTORY SERVICE]: GetRootFolder for {0}", principalID);
+
+            // Let's find out the local root folder
+            XInventoryFolder root = GetRootXFolder(principalID);
+
+            if (root == null)
+            {
+                m_log.WarnFormat("[HG SUITCASE INVENTORY SERVICE]: Unable to retrieve local root folder for user {0}", principalID);
+                return null;
+            }
+
+            // Warp! Root folder for travelers is the suitcase folder
+            XInventoryFolder suitcase = GetSuitcaseXFolder(principalID);
+
+            if (suitcase == null)
+            {
+                m_log.DebugFormat("[HG SUITCASE INVENTORY SERVICE]: User {0} does not have a Suitcase folder. Creating it...", principalID);
+                // Create the My Suitcase folder under the user's root folder.
+                // In the DB we tag it as type 100, but we use type 8 (Folder) outside, as this affects the sort order.
+                suitcase = CreateFolder(principalID, root.folderID, (int)FolderType.Suitcase, InventoryFolderBase.SUITCASE_FOLDER_NAME);
+                if (suitcase == null)
+                {
+                    m_log.ErrorFormat("[HG SUITCASE INVENTORY SERVICE]: Unable to create suitcase folder");
+                    return null;
+                }
+
+                CreateSystemFolders(principalID, suitcase.folderID);
+            }
+
+            SetAsNormalFolder(suitcase);
+
+            return ConvertToOpenSim(suitcase);
+        }
+
+        protected void CreateSystemFolders(UUID principalID, UUID rootID)
+        {
+            m_log.Debug("[HG SUITCASE INVENTORY SERVICE]: Creating System folders under Suitcase...");
+            XInventoryFolder[] sysFolders = GetSystemFolders(principalID, rootID);
+
+            if (!Array.Exists(sysFolders, delegate(XInventoryFolder f) { if (f.type == (int)FolderType.Animation) return true; return false; }))
+                CreateFolder(principalID, rootID, (int)FolderType.Animation, "Animations");
+            if (!Array.Exists(sysFolders, delegate(XInventoryFolder f) { if (f.type == (int)FolderType.BodyPart) return true; return false; }))
+                CreateFolder(principalID, rootID, (int)FolderType.BodyPart, "Body Parts");
+            if (!Array.Exists(sysFolders, delegate(XInventoryFolder f) { if (f.type == (int)FolderType.CallingCard) return true; return false; }))
+                CreateFolder(principalID, rootID, (int)FolderType.CallingCard, "Calling Cards");
+            if (!Array.Exists(sysFolders, delegate(XInventoryFolder f) { if (f.type == (int)FolderType.Clothing) return true; return false; }))
+                CreateFolder(principalID, rootID, (int)FolderType.Clothing, "Clothing");
+            if (!Array.Exists(sysFolders, delegate(XInventoryFolder f) { if (f.type == (int)FolderType.CurrentOutfit) return true; return false; }))
+                CreateFolder(principalID, rootID, (int)FolderType.CurrentOutfit, "Current Outfit");
+            if (!Array.Exists(sysFolders, delegate(XInventoryFolder f) { if (f.type == (int)FolderType.Favorites) return true; return false; }))
+                CreateFolder(principalID, rootID, (int)FolderType.Favorites, "Favorites");
+            if (!Array.Exists(sysFolders, delegate(XInventoryFolder f) { if (f.type == (int)FolderType.Gesture) return true; return false; }))
+                CreateFolder(principalID, rootID, (int)FolderType.Gesture, "Gestures");
+            if (!Array.Exists(sysFolders, delegate(XInventoryFolder f) { if (f.type == (int)FolderType.Landmark) return true; return false; }))
+                CreateFolder(principalID, rootID, (int)FolderType.Landmark, "Landmarks");
+            if (!Array.Exists(sysFolders, delegate(XInventoryFolder f) { if (f.type == (int)FolderType.LostAndFound) return true; return false; }))
+                CreateFolder(principalID, rootID, (int)FolderType.LostAndFound, "Lost And Found");
+            if (!Array.Exists(sysFolders, delegate(XInventoryFolder f) { if (f.type == (int)FolderType.Notecard) return true; return false; }))
+                CreateFolder(principalID, rootID, (int)FolderType.Notecard, "Notecards");
+            if (!Array.Exists(sysFolders, delegate(XInventoryFolder f) { if (f.type == (int)FolderType.Object) return true; return false; }))
+                CreateFolder(principalID, rootID, (int)FolderType.Object, "Objects");
+            if (!Array.Exists(sysFolders, delegate(XInventoryFolder f) { if (f.type == (int)FolderType.Snapshot) return true; return false; }))
+                CreateFolder(principalID, rootID, (int)FolderType.Snapshot, "Photo Album");
+            if (!Array.Exists(sysFolders, delegate(XInventoryFolder f) { if (f.type == (int)FolderType.LSLText) return true; return false; }))
+                CreateFolder(principalID, rootID, (int)FolderType.LSLText, "Scripts");
+            if (!Array.Exists(sysFolders, delegate(XInventoryFolder f) { if (f.type == (int)FolderType.Sound) return true; return false; }))
+                CreateFolder(principalID, rootID, (int)FolderType.Sound, "Sounds");
+            if (!Array.Exists(sysFolders, delegate(XInventoryFolder f) { if (f.type == (int)FolderType.Texture) return true; return false; }))
+                CreateFolder(principalID, rootID, (int)FolderType.Texture, "Textures");
+            if (!Array.Exists(sysFolders, delegate(XInventoryFolder f) { if (f.type == (int)FolderType.Trash) return true; return false; }))
+                CreateFolder(principalID, rootID, (int)FolderType.Trash, "Trash");
+        }
+
+        public override InventoryFolderBase GetFolderForType(UUID principalID, FolderType type)
+        {
+            //m_log.DebugFormat("[HG INVENTORY SERVICE]: GetFolderForType for {0} {0}", principalID, type);
+            XInventoryFolder suitcase = GetSuitcaseXFolder(principalID);
+
+            if (suitcase == null)
+            {
+                m_log.WarnFormat("[HG SUITCASE INVENTORY SERVICE]: Found no suitcase folder for user {0} when looking for child type folder {1}", principalID, type);
+                return null;
+            }
+
+            XInventoryFolder[] folders = m_Database.GetFolders(
+                    new string[] { "agentID", "type", "parentFolderID" },
+                    new string[] { principalID.ToString(), ((int)type).ToString(), suitcase.folderID.ToString() });
+
+            if (folders.Length == 0)
+            {
+                m_log.WarnFormat("[HG SUITCASE INVENTORY SERVICE]: Found no folder for type {0} for user {1}", type, principalID);
+                return null;
+            }
+
+            m_log.DebugFormat(
+                "[HG SUITCASE INVENTORY SERVICE]: Found folder {0} {1} for type {2} for user {3}",
+                folders[0].folderName, folders[0].folderID, type, principalID);
+
+            return ConvertToOpenSim(folders[0]);
+        }
+
+        public override InventoryCollection GetFolderContent(UUID principalID, UUID folderID)
+        {
+            InventoryCollection coll = null;
+
+            if (!IsWithinSuitcaseTree(principalID, folderID))
+            {
+                m_log.DebugFormat("[HG SUITCASE INVENTORY SERVICE]: GetFolderContent: folder {0} (user {1}) is not within Suitcase tree", folderID, principalID);
+                return new InventoryCollection();
+            }
+
+            coll = base.GetFolderContent(principalID, folderID);
+
+            if (coll == null)
+            {
+                m_log.WarnFormat("[HG SUITCASE INVENTORY SERVICE]: Something wrong with user {0}'s suitcase folder", principalID);
+                coll = new InventoryCollection();
+            }
+            return coll;
+        }
+
+        public override List<InventoryItemBase> GetFolderItems(UUID principalID, UUID folderID)
+        {
+            // Let's do a bit of sanity checking, more than the base service does
+            // make sure the given folder exists under the suitcase tree of this user
+            if (!IsWithinSuitcaseTree(principalID, folderID))
+            {
+                m_log.DebugFormat("[HG SUITCASE INVENTORY SERVICE]: GetFolderItems: folder {0} (user {1}) is not within Suitcase tree", folderID, principalID);
+                return new List<InventoryItemBase>();
+            }
+
+            return base.GetFolderItems(principalID, folderID);
+        }
+
+        public override bool AddFolder(InventoryFolderBase folder)
+        {
+            //m_log.WarnFormat("[HG SUITCASE INVENTORY SERVICE]: AddFolder {0} {1}", folder.Name, folder.ParentID);
+            // Let's do a bit of sanity checking, more than the base service does
+            // make sure the given folder's parent folder exists under the suitcase tree of this user
+
+            if (!IsWithinSuitcaseTree(folder.Owner, folder.ParentID))
+            {
+                m_log.DebugFormat("[HG SUITCASE INVENTORY SERVICE]: AddFolder: folder {0} (user {1}) is not within Suitcase tree", folder.ParentID, folder.Owner);
+                return false;
+            }
+
+            // OK, it's legit
+            if (base.AddFolder(folder))
+            {
+                List<XInventoryFolder> tree;
+                if (m_SuitcaseTrees.TryGetValue(folder.Owner, out tree))
+                    tree.Add(ConvertFromOpenSim(folder));
+
+                return true;
+            }
+
+            return false;
+        }
+
+        public override bool UpdateFolder(InventoryFolderBase folder)
+        {
+            //m_log.DebugFormat("[HG SUITCASE INVENTORY SERVICE]: Update folder {0}, version {1}", folder.ID, folder.Version);
+            if (!IsWithinSuitcaseTree(folder.Owner, folder.ID))
+            {
+                m_log.DebugFormat("[HG SUITCASE INVENTORY SERVICE]: UpdateFolder: folder {0}/{1} (user {2}) is not within Suitcase tree", folder.Name, folder.ID, folder.Owner);
+                return false;
+            }
+
+            // For all others
+            return base.UpdateFolder(folder);
+        }
+
+        public override bool MoveFolder(InventoryFolderBase folder)
+        {
+            if (!IsWithinSuitcaseTree(folder.Owner, folder.ID))
+            {
+                m_log.DebugFormat("[HG SUITCASE INVENTORY SERVICE]: MoveFolder: folder {0} (user {1}) is not within Suitcase tree", folder.ID, folder.Owner);
+                return false;
+            }
+            
+            if (!IsWithinSuitcaseTree(folder.Owner, folder.ParentID))
+            {
+                m_log.DebugFormat("[HG SUITCASE INVENTORY SERVICE]: MoveFolder: folder {0} (user {1}) is not within Suitcase tree", folder.ParentID, folder.Owner);
+                return false;
+            }
+
+            return base.MoveFolder(folder);
+        }
+
+        public override bool DeleteFolders(UUID principalID, List<UUID> folderIDs)
+        {
+            // NOGO
+            return false;
+        }
+
+        public override bool PurgeFolder(InventoryFolderBase folder)
+        {
+            // NOGO
+            return false;
+        }
+
+        public override bool AddItem(InventoryItemBase item)
+        {
+            // Let's do a bit of sanity checking, more than the base service does
+            // make sure the given folder's parent folder exists under the suitcase tree of this user
+            if (!IsWithinSuitcaseTree(item.Owner, item.Folder))
+            {
+                m_log.DebugFormat("[HG SUITCASE INVENTORY SERVICE]: AddItem: folder {0} (user {1}) is not within Suitcase tree", item.Folder, item.Owner);
+                return false;
+            }
+
+            // OK, it's legit
+            return base.AddItem(item);
+
+        }
+
+        public override bool UpdateItem(InventoryItemBase item)
+        {
+            if (!IsWithinSuitcaseTree(item.Owner, item.Folder))
+            {
+                m_log.DebugFormat("[HG SUITCASE INVENTORY SERVICE]: UpdateItem: folder {0} (user {1}) is not within Suitcase tree", item.Folder, item.Owner);
+                return false;
+            }
+
+            return base.UpdateItem(item);
+        }
+
+        public override bool MoveItems(UUID principalID, List<InventoryItemBase> items)
+        {
+            // Principal is b0rked. *sigh*
+
+            // Check the items' destination folders
+            foreach (InventoryItemBase item in items)
+            {
+                if (!IsWithinSuitcaseTree(item.Owner, item.Folder))
+                {
+                    m_log.DebugFormat("[HG SUITCASE INVENTORY SERVICE]: MoveItems: folder {0} (user {1}) is not within Suitcase tree", item.Folder, item.Owner);
+                    return false;
+                }
+            }
+
+            // Check the items' current folders
+            foreach (InventoryItemBase item in items)
+            {
+                InventoryItemBase originalItem = base.GetItem(item);
+                if (!IsWithinSuitcaseTree(originalItem.Owner, originalItem.Folder))
+                {
+                    m_log.DebugFormat("[HG SUITCASE INVENTORY SERVICE]: MoveItems: folder {0} (user {1}) is not within Suitcase tree", item.Folder, item.Owner);
+                    return false;
+                }
+            }
+
+            return base.MoveItems(principalID, items);
+        }
+
+        public override bool DeleteItems(UUID principalID, List<UUID> itemIDs)
+        {
+            return false;
+        }
+
+        public new InventoryItemBase GetItem(InventoryItemBase item)
+        {
+            InventoryItemBase it = base.GetItem(item);
+            if (it == null)
+            {
+                m_log.DebugFormat("[HG SUITCASE INVENTORY SERVICE]: Unable to retrieve item {0} ({1}) in folder {2}",
+                    item.Name, item.ID, item.Folder);
+                return null;
+            }
+
+            if (!IsWithinSuitcaseTree(it.Owner, it.Folder) && !IsPartOfAppearance(it.Owner, it.ID))
+            {
+                m_log.DebugFormat("[HG SUITCASE INVENTORY SERVICE]: GetItem: item {0}/{1} (folder {2}) (user {3}) is not within Suitcase tree or Appearance",
+                    it.Name, it.ID, it.Folder, it.Owner);
+                return null;
+            }
+
+            //    UserAccount user = m_Cache.GetUser(it.CreatorId);
+
+            //    // Adjust the creator data
+            //    if (user != null && it != null && (it.CreatorData == null || it.CreatorData == string.Empty))
+            //        it.CreatorData = m_HomeURL + ";" + user.FirstName + " " + user.LastName;
+            //}
+
+            return it;
+        }
+
+        public new InventoryFolderBase GetFolder(InventoryFolderBase folder)
+        {
+            InventoryFolderBase f = base.GetFolder(folder);
+
+            if (f != null)
+            {
+                if (!IsWithinSuitcaseTree(f.Owner, f.ID))
+                {
+                    m_log.DebugFormat("[HG SUITCASE INVENTORY SERVICE]: GetFolder: folder {0}/{1} (user {2}) is not within Suitcase tree",
+                        f.Name, f.ID, f.Owner);
+                    return null;
+                }
+            }
+
+            return f;
+        }
+
+        //public List<InventoryItemBase> GetActiveGestures(UUID principalID)
+        //{
+        //}
+
+        //public int GetAssetPermissions(UUID principalID, UUID assetID)
+        //{
+        //}
+
+        #region Auxiliary functions
+        private XInventoryFolder GetXFolder(UUID userID, UUID folderID)
+        {
+            XInventoryFolder[] folders = m_Database.GetFolders(
+                    new string[] { "agentID", "folderID" },
+                    new string[] { userID.ToString(), folderID.ToString() });
+
+            if (folders.Length == 0)
+                return null;
+
+            return folders[0];
+        }
+
+        private XInventoryFolder GetRootXFolder(UUID principalID)
+        {
+            XInventoryFolder[] folders = m_Database.GetFolders(
+                new string[] { "agentID", "folderName", "type" },
+                new string[] { principalID.ToString(), InventoryFolderBase.ROOT_FOLDER_NAME, ((int)FolderType.Root).ToString() });
+
+            if (folders != null && folders.Length > 0)
+                return folders[0];
+
+            // OK, so the RootFolder type didn't work. Let's look for any type with parent UUID.Zero.
+            folders = m_Database.GetFolders(
+                new string[] { "agentID", "folderName", "parentFolderID" },
+                new string[] { principalID.ToString(), InventoryFolderBase.ROOT_FOLDER_NAME, UUID.Zero.ToString() });
+
+            if (folders != null && folders.Length > 0)
+                return folders[0];
+
+            return null;
+        }
+
+        private XInventoryFolder GetCurrentOutfitXFolder(UUID userID)
+        {
+            XInventoryFolder root = GetRootXFolder(userID);
+            if (root == null)
+                return null;
+
+            XInventoryFolder[] folders = m_Database.GetFolders(
+                    new string[] { "agentID", "type", "parentFolderID" },
+                    new string[] { userID.ToString(), ((int)FolderType.CurrentOutfit).ToString(), root.folderID.ToString() });
+
+            if (folders.Length == 0)
+                return null;
+
+            return folders[0];
+        }
+
+        private XInventoryFolder GetSuitcaseXFolder(UUID principalID)
+        {
+            // Warp! Root folder for travelers
+            XInventoryFolder[] folders = m_Database.GetFolders(
+                    new string[] { "agentID", "type" },
+                    new string[] { principalID.ToString(), ((int)FolderType.Suitcase).ToString() }); 
+
+            if (folders != null && folders.Length > 0)
+                return folders[0];
+            
+            // check to see if we have the old Suitcase folder
+            folders = m_Database.GetFolders(
+                    new string[] { "agentID", "folderName", "parentFolderID" },
+                    new string[] { principalID.ToString(), InventoryFolderBase.SUITCASE_FOLDER_NAME, UUID.Zero.ToString() });
+            if (folders != null && folders.Length > 0)
+            {
+                // Move it to under the root folder
+                XInventoryFolder root = GetRootXFolder(principalID);
+                folders[0].parentFolderID = root.folderID;
+                folders[0].type = (int)FolderType.Suitcase;
+                m_Database.StoreFolder(folders[0]);
+                return folders[0];
+            }
+
+            return null;
+        }
+
+        private void SetAsNormalFolder(XInventoryFolder suitcase)
+        {
+            //suitcase.type = InventoryItemBase.SUITCASE_FOLDER_FAKE_TYPE;
+        }
+
+        private List<XInventoryFolder> GetFolderTree(UUID principalID, UUID folder)
+        {
+            List<XInventoryFolder> t;
+            if (m_SuitcaseTrees.TryGetValue(principalID, out t))
+                return t;
+
+            // Get the tree of the suitcase folder
+            t = GetFolderTreeRecursive(folder);
+            m_SuitcaseTrees.AddOrUpdate(principalID, t, 5*60); // 5 minutes
+            return t;
+        }
+
+        private List<XInventoryFolder> GetFolderTreeRecursive(UUID root)
+        {
+            List<XInventoryFolder> tree = new List<XInventoryFolder>();
+            XInventoryFolder[] folders = m_Database.GetFolders(
+                    new string[] { "parentFolderID" },
+                    new string[] { root.ToString() });
+
+            if (folders == null || folders.Length == 0)
+            {
+                return tree; // empty tree
+            }
+            else
+            {
+                foreach (XInventoryFolder f in folders)
+                {
+                    tree.Add(f);
+                    tree.AddRange(GetFolderTreeRecursive(f.folderID));
+                }
+                return tree;
+            }
+
+        }
+
+        /// <summary>
+        /// Return true if the folderID is a subfolder of the Suitcase or the suitcase folder  itself
+        /// </summary>
+        /// <param name="folderID"></param>
+        /// <param name="root"></param>
+        /// <param name="suitcase"></param>
+        /// <returns></returns>
+        private bool IsWithinSuitcaseTree(UUID principalID, UUID folderID)
+        {
+            XInventoryFolder suitcase = GetSuitcaseXFolder(principalID);
+
+            if (suitcase == null)
+            {
+                m_log.WarnFormat("[HG SUITCASE INVENTORY SERVICE]: User {0} does not have a Suitcase folder", principalID);
+                return false;
+            }
+
+            List<XInventoryFolder> tree = new List<XInventoryFolder>();
+            tree.Add(suitcase); // Warp! the tree is the real root folder plus the children of the suitcase folder
+            tree.AddRange(GetFolderTree(principalID, suitcase.folderID));
+
+            // Also add the Current Outfit folder to the list of available folders
+            XInventoryFolder folder = GetCurrentOutfitXFolder(principalID);
+            if (folder != null)
+                tree.Add(folder);
+
+            XInventoryFolder f = tree.Find(delegate(XInventoryFolder fl)
+            {
+                return (fl.folderID == folderID);
+            });
+
+            return (f != null);
+        }
+        #endregion
+
+        #region Avatar Appearance
+
+        private AvatarAppearance GetAppearance(UUID principalID)
+        {
+            AvatarAppearance a = null;
+            if (m_Appearances.TryGetValue(principalID, out a))
+                return a;
+
+            a = m_AvatarService.GetAppearance(principalID);
+            m_Appearances.AddOrUpdate(principalID, a, 5 * 60); // 5minutes
+            return a;
+        }
+
+        private bool IsPartOfAppearance(UUID principalID, UUID itemID)
+        {
+            AvatarAppearance a = GetAppearance(principalID);
+
+            if (a == null)
+                return false;
+
+            // Check wearables (body parts and clothes)
+            for (int i = 0; i < a.Wearables.Length; i++)
+            {
+                for (int j = 0; j < a.Wearables[i].Count; j++)
+                {
+                    if (a.Wearables[i][j].ItemID == itemID)
+                    {
+                        //m_log.DebugFormat("[HG SUITCASE INVENTORY SERVICE]: item {0} is a wearable", itemID); 
+                        return true;
+                    }
+                }
+            }
+
+            // Check attachments
+            if (a.GetAttachmentForItem(itemID) != null)
+            {
+                //m_log.DebugFormat("[HG SUITCASE INVENTORY SERVICE]: item {0} is an attachment", itemID); 
+                return true;
+            }
+
+            return false;
+        }
+
+        #endregion
+
+    }
+
+}
diff --git a/OpenSim/Services/HypergridService/Properties/AssemblyInfo.cs b/OpenSim/Services/HypergridService/Properties/AssemblyInfo.cs
new file mode 100644
index 0000000..a565729
--- /dev/null
+++ b/OpenSim/Services/HypergridService/Properties/AssemblyInfo.cs
@@ -0,0 +1,33 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("OpenSim.Services.HypergridService")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("http://opensimulator.org")]
+[assembly: AssemblyProduct("OpenSim")]
+[assembly: AssemblyCopyright("OpenSimulator developers")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible 
+// to COM components.  If you need to access a type in this assembly from 
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("8584f3c1-26dd-4d95-86f4-cd8f0110a18f")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+[assembly: AssemblyVersion("0.8.2.*")]
+
diff --git a/OpenSim/Services/HypergridService/UserAccountCache.cs b/OpenSim/Services/HypergridService/UserAccountCache.cs
new file mode 100644
index 0000000..fa7dd0b
--- /dev/null
+++ b/OpenSim/Services/HypergridService/UserAccountCache.cs
@@ -0,0 +1,111 @@
+using System;
+using System.Collections.Generic;
+using System.Reflection;
+
+using log4net;
+using OpenMetaverse;
+
+using OpenSim.Services.Interfaces;
+
+namespace OpenSim.Services.HypergridService
+{
+    public class UserAccountCache : IUserAccountService
+    {
+        private const double CACHE_EXPIRATION_SECONDS = 120000.0; // 33 hours!
+
+//        private static readonly ILog m_log =
+//                LogManager.GetLogger(
+//                MethodBase.GetCurrentMethod().DeclaringType);
+        
+        private ExpiringCache<UUID, UserAccount> m_UUIDCache;
+
+        private IUserAccountService m_UserAccountService;
+
+        private static UserAccountCache m_Singleton;
+
+        public static UserAccountCache CreateUserAccountCache(IUserAccountService u)
+        {
+            if (m_Singleton == null)
+                m_Singleton = new UserAccountCache(u);
+
+            return m_Singleton;
+        }
+
+        private UserAccountCache(IUserAccountService u)
+        {
+            m_UUIDCache = new ExpiringCache<UUID, UserAccount>();
+            m_UserAccountService = u;
+        }
+
+        public void Cache(UUID userID, UserAccount account)
+        {
+            // Cache even null accounts
+            m_UUIDCache.AddOrUpdate(userID, account, CACHE_EXPIRATION_SECONDS);
+
+            //m_log.DebugFormat("[USER CACHE]: cached user {0}", userID);
+        }
+
+        public UserAccount Get(UUID userID, out bool inCache)
+        {
+            UserAccount account = null;
+            inCache = false;
+            if (m_UUIDCache.TryGetValue(userID, out account))
+            {
+                //m_log.DebugFormat("[USER CACHE]: Account {0} {1} found in cache", account.FirstName, account.LastName);
+                inCache = true;
+                return account;
+            }
+
+            return null;
+        }
+
+        public UserAccount GetUser(string id)
+        {
+            UUID uuid = UUID.Zero;
+            UUID.TryParse(id, out uuid);
+            bool inCache = false;
+            UserAccount account = Get(uuid, out inCache);
+            if (!inCache)
+            {
+                account = m_UserAccountService.GetUserAccount(UUID.Zero, uuid);
+                Cache(uuid, account);
+            }
+
+            return account;
+        }
+
+        #region IUserAccountService
+        public UserAccount GetUserAccount(UUID scopeID, UUID userID)
+        {
+            return GetUser(userID.ToString());
+        }
+
+        public UserAccount GetUserAccount(UUID scopeID, string FirstName, string LastName)
+        {
+            return null;
+        }
+
+        public UserAccount GetUserAccount(UUID scopeID, string Email)
+        {
+            return null;
+        }
+
+        public List<UserAccount> GetUserAccounts(UUID scopeID, string query)
+        {
+            return null;
+        }
+
+        public void InvalidateCache(UUID userID)
+        {
+            m_UUIDCache.Remove(userID);
+        }
+
+        public bool StoreUserAccount(UserAccount data)
+        {
+            return false;
+        }
+        #endregion
+
+    }
+
+}
diff --git a/OpenSim/Services/HypergridService/UserAgentService.cs b/OpenSim/Services/HypergridService/UserAgentService.cs
new file mode 100644
index 0000000..c65122a
--- /dev/null
+++ b/OpenSim/Services/HypergridService/UserAgentService.cs
@@ -0,0 +1,746 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Net;
+using System.Reflection;
+
+using OpenSim.Data;
+using OpenSim.Framework;
+using OpenSim.Services.Connectors.Friends;
+using OpenSim.Services.Connectors.Hypergrid;
+using OpenSim.Services.Interfaces;
+using GridRegion = OpenSim.Services.Interfaces.GridRegion;
+using OpenSim.Server.Base;
+using FriendInfo = OpenSim.Services.Interfaces.FriendInfo;
+
+using OpenMetaverse;
+using log4net;
+using Nini.Config;
+
+namespace OpenSim.Services.HypergridService
+{
+    /// <summary>
+    /// This service is for HG1.5 only, to make up for the fact that clients don't
+    /// keep any private information in themselves, and that their 'home service'
+    /// needs to do it for them.
+    /// Once we have better clients, this shouldn't be needed.
+    /// </summary>
+    public class UserAgentService : UserAgentServiceBase, IUserAgentService
+    {
+        private static readonly ILog m_log =
+                LogManager.GetLogger(
+                MethodBase.GetCurrentMethod().DeclaringType);
+
+        // This will need to go into a DB table
+        //static Dictionary<UUID, TravelingAgentInfo> m_Database = new Dictionary<UUID, TravelingAgentInfo>();
+
+        static bool m_Initialized = false;
+
+        protected static IGridUserService m_GridUserService;
+        protected static IGridService m_GridService;
+        protected static GatekeeperServiceConnector m_GatekeeperConnector;
+        protected static IGatekeeperService m_GatekeeperService;
+        protected static IFriendsService m_FriendsService;
+        protected static IPresenceService m_PresenceService;
+        protected static IUserAccountService m_UserAccountService;
+        protected static IFriendsSimConnector m_FriendsLocalSimConnector; // standalone, points to HGFriendsModule
+        protected static FriendsSimConnector m_FriendsSimConnector; // grid
+
+        protected static string m_GridName;
+
+        protected static int m_LevelOutsideContacts;
+        protected static bool m_ShowDetails;
+
+        protected static bool m_BypassClientVerification;
+
+        private static Dictionary<int, bool> m_ForeignTripsAllowed = new Dictionary<int, bool>();
+        private static Dictionary<int, List<string>> m_TripsAllowedExceptions = new Dictionary<int, List<string>>();
+        private static Dictionary<int, List<string>> m_TripsDisallowedExceptions = new Dictionary<int, List<string>>();
+
+        public UserAgentService(IConfigSource config) : this(config, null)
+        {
+        }
+
+        public UserAgentService(IConfigSource config, IFriendsSimConnector friendsConnector)
+            : base(config)
+        {
+            // Let's set this always, because we don't know the sequence
+            // of instantiations
+            if (friendsConnector != null)
+                m_FriendsLocalSimConnector = friendsConnector;
+
+            if (!m_Initialized)
+            {
+                m_Initialized = true;
+
+                m_log.DebugFormat("[HOME USERS SECURITY]: Starting...");
+
+                m_FriendsSimConnector = new FriendsSimConnector();
+
+                IConfig serverConfig = config.Configs["UserAgentService"];
+                if (serverConfig == null)
+                    throw new Exception(String.Format("No section UserAgentService in config file"));
+
+                string gridService = serverConfig.GetString("GridService", String.Empty);
+                string gridUserService = serverConfig.GetString("GridUserService", String.Empty);
+                string gatekeeperService = serverConfig.GetString("GatekeeperService", String.Empty);
+                string friendsService = serverConfig.GetString("FriendsService", String.Empty);
+                string presenceService = serverConfig.GetString("PresenceService", String.Empty);
+                string userAccountService = serverConfig.GetString("UserAccountService", String.Empty);
+
+                m_BypassClientVerification = serverConfig.GetBoolean("BypassClientVerification", false);
+
+                if (gridService == string.Empty || gridUserService == string.Empty || gatekeeperService == string.Empty)
+                    throw new Exception(String.Format("Incomplete specifications, UserAgent Service cannot function."));
+
+                Object[] args = new Object[] { config };
+                m_GridService = ServerUtils.LoadPlugin<IGridService>(gridService, args);
+                m_GridUserService = ServerUtils.LoadPlugin<IGridUserService>(gridUserService, args);
+                m_GatekeeperConnector = new GatekeeperServiceConnector();
+                m_GatekeeperService = ServerUtils.LoadPlugin<IGatekeeperService>(gatekeeperService, args);
+                m_FriendsService = ServerUtils.LoadPlugin<IFriendsService>(friendsService, args);
+                m_PresenceService = ServerUtils.LoadPlugin<IPresenceService>(presenceService, args);
+                m_UserAccountService = ServerUtils.LoadPlugin<IUserAccountService>(userAccountService, args);
+
+                m_LevelOutsideContacts = serverConfig.GetInt("LevelOutsideContacts", 0);
+                m_ShowDetails = serverConfig.GetBoolean("ShowUserDetailsInHGProfile", true);
+
+                LoadTripPermissionsFromConfig(serverConfig, "ForeignTripsAllowed");
+                LoadDomainExceptionsFromConfig(serverConfig, "AllowExcept", m_TripsAllowedExceptions);
+                LoadDomainExceptionsFromConfig(serverConfig, "DisallowExcept", m_TripsDisallowedExceptions);
+
+                m_GridName = Util.GetConfigVarFromSections<string>(config, "GatekeeperURI",
+                    new string[] { "Startup", "Hypergrid", "UserAgentService" }, String.Empty);
+                if (string.IsNullOrEmpty(m_GridName)) // Legacy. Remove soon.
+                {
+                    m_GridName = serverConfig.GetString("ExternalName", string.Empty);
+                    if (m_GridName == string.Empty)
+                    {
+                        serverConfig = config.Configs["GatekeeperService"];
+                        m_GridName = serverConfig.GetString("ExternalName", string.Empty);
+                    }
+                }
+
+                if (!m_GridName.EndsWith("/"))
+                    m_GridName = m_GridName + "/";
+
+                // Finally some cleanup
+                m_Database.DeleteOld();
+
+            }
+        }
+
+        protected void LoadTripPermissionsFromConfig(IConfig config, string variable)
+        {
+            foreach (string keyName in config.GetKeys())
+            {
+                if (keyName.StartsWith(variable + "_Level_"))
+                {
+                    int level = 0;
+                    if (Int32.TryParse(keyName.Replace(variable + "_Level_", ""), out level))
+                        m_ForeignTripsAllowed.Add(level, config.GetBoolean(keyName, true));
+                }
+            }
+        }
+
+        protected void LoadDomainExceptionsFromConfig(IConfig config, string variable, Dictionary<int, List<string>> exceptions)
+        {
+            foreach (string keyName in config.GetKeys())
+            {
+                if (keyName.StartsWith(variable + "_Level_"))
+                {
+                    int level = 0;
+                    if (Int32.TryParse(keyName.Replace(variable + "_Level_", ""), out level) && !exceptions.ContainsKey(level))
+                    {
+                        exceptions.Add(level, new List<string>());
+                        string value = config.GetString(keyName, string.Empty);
+                        string[] parts = value.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
+
+                        foreach (string s in parts)
+                            exceptions[level].Add(s.Trim());
+                    }
+                }
+            }
+        }
+
+
+        public GridRegion GetHomeRegion(UUID userID, out Vector3 position, out Vector3 lookAt)
+        {
+            position = new Vector3(128, 128, 0); lookAt = Vector3.UnitY;
+
+            m_log.DebugFormat("[USER AGENT SERVICE]: Request to get home region of user {0}", userID);
+
+            GridRegion home = null;
+            GridUserInfo uinfo = m_GridUserService.GetGridUserInfo(userID.ToString());
+            if (uinfo != null)
+            {
+                if (uinfo.HomeRegionID != UUID.Zero)
+                {
+                    home = m_GridService.GetRegionByUUID(UUID.Zero, uinfo.HomeRegionID);
+                    position = uinfo.HomePosition;
+                    lookAt = uinfo.HomeLookAt;
+                }
+                if (home == null)
+                {
+                    List<GridRegion> defs = m_GridService.GetDefaultRegions(UUID.Zero);
+                    if (defs != null && defs.Count > 0)
+                        home = defs[0];
+                }
+            }
+
+            return home;
+        }
+
+        public bool LoginAgentToGrid(GridRegion source, AgentCircuitData agentCircuit, GridRegion gatekeeper, GridRegion finalDestination, bool fromLogin, out string reason)
+        {
+            m_log.DebugFormat("[USER AGENT SERVICE]: Request to login user {0} {1} (@{2}) to grid {3}", 
+                agentCircuit.firstname, agentCircuit.lastname, (fromLogin ? agentCircuit.IPAddress : "stored IP"), gatekeeper.ServerURI);
+
+            string gridName = gatekeeper.ServerURI;
+
+            UserAccount account = m_UserAccountService.GetUserAccount(UUID.Zero, agentCircuit.AgentID);
+            if (account == null)
+            {
+                m_log.WarnFormat("[USER AGENT SERVICE]: Someone attempted to lauch a foreign user from here {0} {1}", agentCircuit.firstname, agentCircuit.lastname);
+                reason = "Forbidden to launch your agents from here";
+                return false;
+            }
+
+            // Is this user allowed to go there?
+            if (m_GridName != gridName)
+            {
+                if (m_ForeignTripsAllowed.ContainsKey(account.UserLevel))
+                {
+                    bool allowed = m_ForeignTripsAllowed[account.UserLevel];
+
+                    if (m_ForeignTripsAllowed[account.UserLevel] && IsException(gridName, account.UserLevel, m_TripsAllowedExceptions))
+                        allowed = false;
+
+                    if (!m_ForeignTripsAllowed[account.UserLevel] && IsException(gridName, account.UserLevel, m_TripsDisallowedExceptions))
+                        allowed = true;
+
+                    if (!allowed)
+                    {
+                        reason = "Your world does not allow you to visit the destination";
+                        m_log.InfoFormat("[USER AGENT SERVICE]: Agents not permitted to visit {0}. Refusing service.", gridName);
+                        return false;
+                    }
+                }
+            }
+
+
+            // Take the IP address + port of the gatekeeper (reg) plus the info of finalDestination
+            GridRegion region = new GridRegion(gatekeeper);
+            region.ServerURI = gatekeeper.ServerURI;
+            region.ExternalHostName = finalDestination.ExternalHostName;
+            region.InternalEndPoint = finalDestination.InternalEndPoint;
+            region.RegionName = finalDestination.RegionName;
+            region.RegionID = finalDestination.RegionID;
+            region.RegionLocX = finalDestination.RegionLocX;
+            region.RegionLocY = finalDestination.RegionLocY;
+
+            // Generate a new service session
+            agentCircuit.ServiceSessionID = region.ServerURI + ";" + UUID.Random();
+            TravelingAgentInfo old = null;
+            TravelingAgentInfo travel = CreateTravelInfo(agentCircuit, region, fromLogin, out old);
+            
+            bool success = false;
+            string myExternalIP = string.Empty;
+
+            m_log.DebugFormat("[USER AGENT SERVICE]: this grid: {0}, desired grid: {1}, desired region: {2}", m_GridName, gridName, region.RegionID);
+
+            if (m_GridName == gridName)
+            {
+                success = m_GatekeeperService.LoginAgent(source, agentCircuit, finalDestination, out reason);
+            }
+            else
+            {
+                success = m_GatekeeperConnector.CreateAgent(source, region, agentCircuit, (uint)Constants.TeleportFlags.ViaLogin, out myExternalIP, out reason);
+            }
+
+            if (!success)
+            {
+                m_log.DebugFormat("[USER AGENT SERVICE]: Unable to login user {0} {1} to grid {2}, reason: {3}", 
+                    agentCircuit.firstname, agentCircuit.lastname, region.ServerURI, reason);
+
+                if (old != null)
+                    StoreTravelInfo(old);
+                else
+                    m_Database.Delete(agentCircuit.SessionID);
+
+                return false;
+            }
+
+            // Everything is ok
+
+            // Update the perceived IP Address of our grid 
+            m_log.DebugFormat("[USER AGENT SERVICE]: Gatekeeper sees me as {0}", myExternalIP);
+            travel.MyIpAddress = myExternalIP;
+
+            StoreTravelInfo(travel);
+
+            return true;
+        }
+
+        public bool LoginAgentToGrid(GridRegion source, AgentCircuitData agentCircuit, GridRegion gatekeeper, GridRegion finalDestination, out string reason)
+        {
+            reason = string.Empty;
+            return LoginAgentToGrid(source, agentCircuit, gatekeeper, finalDestination, false, out reason);
+        }
+
+        TravelingAgentInfo CreateTravelInfo(AgentCircuitData agentCircuit, GridRegion region, bool fromLogin, out TravelingAgentInfo existing)
+        {
+            HGTravelingData hgt = m_Database.Get(agentCircuit.SessionID);
+            existing = null;
+
+            if (hgt != null)
+            {
+                // Very important! Override whatever this agent comes with.
+                // UserAgentService always sets the IP for every new agent
+                // with the original IP address.
+                existing = new TravelingAgentInfo(hgt);
+                agentCircuit.IPAddress = existing.ClientIPAddress;
+            }
+
+            TravelingAgentInfo travel = new TravelingAgentInfo(existing);
+            travel.SessionID = agentCircuit.SessionID;
+            travel.UserID = agentCircuit.AgentID;
+            travel.GridExternalName = region.ServerURI;
+            travel.ServiceToken = agentCircuit.ServiceSessionID;
+
+            if (fromLogin)
+                travel.ClientIPAddress = agentCircuit.IPAddress;
+
+            StoreTravelInfo(travel);
+
+            return travel;
+        }
+
+        public void LogoutAgent(UUID userID, UUID sessionID)
+        {
+            m_log.DebugFormat("[USER AGENT SERVICE]: User {0} logged out", userID);
+
+            m_Database.Delete(sessionID);
+
+            GridUserInfo guinfo = m_GridUserService.GetGridUserInfo(userID.ToString());
+            if (guinfo != null)
+                m_GridUserService.LoggedOut(userID.ToString(), sessionID, guinfo.LastRegionID, guinfo.LastPosition, guinfo.LastLookAt);
+        }
+
+        // We need to prevent foreign users with the same UUID as a local user
+        public bool IsAgentComingHome(UUID sessionID, string thisGridExternalName)
+        {
+            HGTravelingData hgt = m_Database.Get(sessionID);
+            if (hgt == null)
+                return false;
+
+            TravelingAgentInfo travel = new TravelingAgentInfo(hgt);
+
+            return travel.GridExternalName.ToLower() == thisGridExternalName.ToLower();
+        }
+
+        public bool VerifyClient(UUID sessionID, string reportedIP)
+        {
+            if (m_BypassClientVerification)
+                return true;
+
+            m_log.DebugFormat("[USER AGENT SERVICE]: Verifying Client session {0} with reported IP {1}.", 
+                sessionID, reportedIP);
+
+            HGTravelingData hgt = m_Database.Get(sessionID);
+            if (hgt == null)
+                return false;
+
+            TravelingAgentInfo travel = new TravelingAgentInfo(hgt);
+
+            bool result = travel.ClientIPAddress == reportedIP || travel.MyIpAddress == reportedIP; // NATed
+
+            m_log.DebugFormat("[USER AGENT SERVICE]: Comparing {0} with login IP {1} and MyIP {1}; result is {3}",
+                                reportedIP, travel.ClientIPAddress, travel.MyIpAddress, result);
+
+            return result;
+        }
+
+        public bool VerifyAgent(UUID sessionID, string token)
+        {
+            HGTravelingData hgt = m_Database.Get(sessionID);
+            if (hgt == null)
+            {
+                m_log.DebugFormat("[USER AGENT SERVICE]: Token verification for session {0}: no such session", sessionID);
+                return false;
+            }
+
+            TravelingAgentInfo travel = new TravelingAgentInfo(hgt);
+            m_log.DebugFormat("[USER AGENT SERVICE]: Verifying agent token {0} against {1}", token, travel.ServiceToken);
+            return travel.ServiceToken == token;
+        }
+
+        [Obsolete]
+        public List<UUID> StatusNotification(List<string> friends, UUID foreignUserID, bool online)
+        {
+            if (m_FriendsService == null || m_PresenceService == null)
+            {
+                m_log.WarnFormat("[USER AGENT SERVICE]: Unable to perform status notifications because friends or presence services are missing");
+                return new List<UUID>();
+            }
+
+            List<UUID> localFriendsOnline = new List<UUID>();
+
+            m_log.DebugFormat("[USER AGENT SERVICE]: Status notification: foreign user {0} wants to notify {1} local friends", foreignUserID, friends.Count);
+
+            // First, let's double check that the reported friends are, indeed, friends of that user
+            // And let's check that the secret matches
+            List<string> usersToBeNotified = new List<string>();
+            foreach (string uui in friends)
+            {
+                UUID localUserID;
+                string secret = string.Empty, tmp = string.Empty;
+                if (Util.ParseUniversalUserIdentifier(uui, out localUserID, out tmp, out tmp, out tmp, out secret))
+                {
+                    FriendInfo[] friendInfos = m_FriendsService.GetFriends(localUserID);
+                    foreach (FriendInfo finfo in friendInfos)
+                    {
+                        if (finfo.Friend.StartsWith(foreignUserID.ToString()) && finfo.Friend.EndsWith(secret))
+                        {
+                            // great!
+                            usersToBeNotified.Add(localUserID.ToString());
+                        }
+                    }
+                }
+            }
+
+            // Now, let's send the notifications
+            m_log.DebugFormat("[USER AGENT SERVICE]: Status notification: user has {0} local friends", usersToBeNotified.Count);
+
+            // First, let's send notifications to local users who are online in the home grid
+            PresenceInfo[] friendSessions = m_PresenceService.GetAgents(usersToBeNotified.ToArray());
+            if (friendSessions != null && friendSessions.Length > 0)
+            {
+                PresenceInfo friendSession = null;
+                foreach (PresenceInfo pinfo in friendSessions)
+                    if (pinfo.RegionID != UUID.Zero) // let's guard against traveling agents
+                    {
+                        friendSession = pinfo;
+                        break;
+                    }
+
+                if (friendSession != null)
+                {
+                    ForwardStatusNotificationToSim(friendSession.RegionID, foreignUserID, friendSession.UserID, online);
+                    usersToBeNotified.Remove(friendSession.UserID.ToString());
+                    UUID id;
+                    if (UUID.TryParse(friendSession.UserID, out id))
+                        localFriendsOnline.Add(id);
+
+                }
+            }
+
+            //// Lastly, let's notify the rest who may be online somewhere else
+            //foreach (string user in usersToBeNotified)
+            //{
+            //    UUID id = new UUID(user);
+            //    if (m_Database.ContainsKey(id) && m_Database[id].GridExternalName != m_GridName)
+            //    {
+            //        string url = m_Database[id].GridExternalName;
+            //        // forward
+            //        m_log.WarnFormat("[USER AGENT SERVICE]: User {0} is visiting {1}. HG Status notifications still not implemented.", user, url);
+            //    }
+            //}
+
+            // and finally, let's send the online friends
+            if (online)
+            {
+                return localFriendsOnline;
+            }
+            else
+                return new List<UUID>();
+        }
+
+        [Obsolete]
+        protected void ForwardStatusNotificationToSim(UUID regionID, UUID foreignUserID, string user, bool online)
+        {
+            UUID userID;
+            if (UUID.TryParse(user, out userID))
+            {
+                if (m_FriendsLocalSimConnector != null)
+                {
+                    m_log.DebugFormat("[USER AGENT SERVICE]: Local Notify, user {0} is {1}", foreignUserID, (online ? "online" : "offline"));
+                    m_FriendsLocalSimConnector.StatusNotify(foreignUserID, userID, online);
+                }
+                else
+                {
+                    GridRegion region = m_GridService.GetRegionByUUID(UUID.Zero /* !!! */, regionID);
+                    if (region != null)
+                    {
+                        m_log.DebugFormat("[USER AGENT SERVICE]: Remote Notify to region {0}, user {1} is {2}", region.RegionName, foreignUserID, (online ? "online" : "offline"));
+                        m_FriendsSimConnector.StatusNotify(region, foreignUserID, userID.ToString(), online);
+                    }
+                }
+            }
+        }
+
+        public List<UUID> GetOnlineFriends(UUID foreignUserID, List<string> friends)
+        {
+            List<UUID> online = new List<UUID>();
+
+            if (m_FriendsService == null || m_PresenceService == null)
+            {
+                m_log.WarnFormat("[USER AGENT SERVICE]: Unable to get online friends because friends or presence services are missing");
+                return online;
+            }
+
+            m_log.DebugFormat("[USER AGENT SERVICE]: Foreign user {0} wants to know status of {1} local friends", foreignUserID, friends.Count);
+
+            // First, let's double check that the reported friends are, indeed, friends of that user
+            // And let's check that the secret matches and the rights
+            List<string> usersToBeNotified = new List<string>();
+            foreach (string uui in friends)
+            {
+                UUID localUserID;
+                string secret = string.Empty, tmp = string.Empty;
+                if (Util.ParseUniversalUserIdentifier(uui, out localUserID, out tmp, out tmp, out tmp, out secret))
+                {
+                    FriendInfo[] friendInfos = m_FriendsService.GetFriends(localUserID);
+                    foreach (FriendInfo finfo in friendInfos)
+                    {
+                        if (finfo.Friend.StartsWith(foreignUserID.ToString()) && finfo.Friend.EndsWith(secret) && 
+                            (finfo.TheirFlags & (int)FriendRights.CanSeeOnline) != 0 && (finfo.TheirFlags != -1))
+                        {
+                            // great!
+                            usersToBeNotified.Add(localUserID.ToString());
+                        }
+                    }
+                }
+            }
+
+            // Now, let's find out their status
+            m_log.DebugFormat("[USER AGENT SERVICE]: GetOnlineFriends: user has {0} local friends with status rights", usersToBeNotified.Count);
+
+            // First, let's send notifications to local users who are online in the home grid
+            PresenceInfo[] friendSessions = m_PresenceService.GetAgents(usersToBeNotified.ToArray());
+            if (friendSessions != null && friendSessions.Length > 0)
+            {
+                foreach (PresenceInfo pi in friendSessions)
+                {
+                    UUID presenceID;
+                    if (UUID.TryParse(pi.UserID, out presenceID))
+                        online.Add(presenceID);
+                }
+            }
+
+            return online;
+        }
+
+        public Dictionary<string, object> GetUserInfo(UUID  userID)
+        {
+            Dictionary<string, object> info = new Dictionary<string, object>();
+
+            if (m_UserAccountService == null)
+            {
+                m_log.WarnFormat("[USER AGENT SERVICE]: Unable to get user flags because user account service is missing");
+                info["result"] = "fail";
+                info["message"] = "UserAccountService is missing!";
+                return info;
+            }
+
+            UserAccount account = m_UserAccountService.GetUserAccount(UUID.Zero /*!!!*/, userID);
+
+            if (account != null)
+            {
+                info.Add("user_firstname", account.FirstName);
+                info.Add("user_lastname", account.LastName);
+                info.Add("result", "success");
+
+                if (m_ShowDetails)
+                {
+                    info.Add("user_flags", account.UserFlags);
+                    info.Add("user_created", account.Created);
+                    info.Add("user_title", account.UserTitle);
+                }
+                else
+                {
+                    info.Add("user_flags", 0);
+                    info.Add("user_created", 0);
+                    info.Add("user_title", string.Empty);
+                }
+            }
+
+            return info;
+        }
+
+        public Dictionary<string, object> GetServerURLs(UUID userID)
+        {
+            if (m_UserAccountService == null)
+            {
+                m_log.WarnFormat("[USER AGENT SERVICE]: Unable to get server URLs because user account service is missing");
+                return new Dictionary<string, object>();
+            }
+            UserAccount account = m_UserAccountService.GetUserAccount(UUID.Zero /*!!!*/, userID);
+            if (account != null)
+                return account.ServiceURLs;
+
+            return new Dictionary<string, object>();
+        }
+
+        public string LocateUser(UUID userID)
+        {
+            HGTravelingData[] hgts = m_Database.GetSessions(userID);
+            if (hgts == null)
+                return string.Empty;
+
+            foreach (HGTravelingData t in hgts)
+                if (t.Data.ContainsKey("GridExternalName") && !m_GridName.Equals(t.Data["GridExternalName"]))
+                    return t.Data["GridExternalName"];
+
+            return string.Empty;
+        }
+
+        public string GetUUI(UUID userID, UUID targetUserID)
+        {
+            // Let's see if it's a local user
+            UserAccount account = m_UserAccountService.GetUserAccount(UUID.Zero, targetUserID);
+            if (account != null)
+                return targetUserID.ToString() + ";" + m_GridName + ";" + account.FirstName + " " + account.LastName ;
+
+            // Let's try the list of friends
+            FriendInfo[] friends = m_FriendsService.GetFriends(userID);
+            if (friends != null && friends.Length > 0)
+            {
+                foreach (FriendInfo f in friends)
+                    if (f.Friend.StartsWith(targetUserID.ToString()))
+                    {
+                        // Let's remove the secret 
+                        UUID id; string tmp = string.Empty, secret = string.Empty;
+                        if (Util.ParseUniversalUserIdentifier(f.Friend, out id, out tmp, out tmp, out tmp, out secret))
+                            return f.Friend.Replace(secret, "0");
+                    }
+            }
+
+            return string.Empty;
+        }
+
+        public UUID GetUUID(String first, String last)
+        {
+            // Let's see if it's a local user
+            UserAccount account = m_UserAccountService.GetUserAccount(UUID.Zero, first, last);
+            if (account != null)
+            {
+                // check user level
+                if (account.UserLevel < m_LevelOutsideContacts)
+                    return UUID.Zero;
+                else
+                    return account.PrincipalID;
+            }
+            else
+                return UUID.Zero;
+        }
+
+        #region Misc
+
+        private bool IsException(string dest, int level, Dictionary<int, List<string>> exceptions)
+        {
+            if (!exceptions.ContainsKey(level))
+                return false;
+
+            bool exception = false;
+            if (exceptions[level].Count > 0) // we have exceptions
+            {
+                string destination = dest;
+                if (!destination.EndsWith("/"))
+                    destination += "/";
+
+                if (exceptions[level].Find(delegate(string s)
+                {
+                    if (!s.EndsWith("/"))
+                        s += "/";
+                    return s == destination;
+                }) != null)
+                    exception = true;
+            }
+
+            return exception;
+        }
+
+        private void StoreTravelInfo(TravelingAgentInfo travel)
+        {
+            if (travel == null)
+                return;
+
+            HGTravelingData hgt = new HGTravelingData();
+            hgt.SessionID = travel.SessionID;
+            hgt.UserID = travel.UserID;
+            hgt.Data = new Dictionary<string, string>();
+            hgt.Data["GridExternalName"] = travel.GridExternalName;
+            hgt.Data["ServiceToken"] = travel.ServiceToken;
+            hgt.Data["ClientIPAddress"] = travel.ClientIPAddress;
+            hgt.Data["MyIPAddress"] = travel.MyIpAddress;
+
+            m_Database.Store(hgt);
+        }
+        #endregion
+
+    }
+
+    class TravelingAgentInfo
+    {
+        public UUID SessionID;
+        public UUID UserID;
+        public string GridExternalName = string.Empty;
+        public string ServiceToken = string.Empty;
+        public string ClientIPAddress = string.Empty; // as seen from this user agent service
+        public string MyIpAddress = string.Empty; // the user agent service's external IP, as seen from the next gatekeeper
+
+        public TravelingAgentInfo(HGTravelingData t)
+        {
+            if (t.Data != null)
+            {
+                SessionID = new UUID(t.SessionID);
+                UserID = new UUID(t.UserID);
+                GridExternalName = t.Data["GridExternalName"];
+                ServiceToken = t.Data["ServiceToken"];
+                ClientIPAddress = t.Data["ClientIPAddress"];
+                MyIpAddress = t.Data["MyIPAddress"];
+            }
+        }
+
+        public TravelingAgentInfo(TravelingAgentInfo old)
+        {
+            if (old != null)
+            {
+                SessionID = old.SessionID;
+                UserID = old.UserID;
+                GridExternalName = old.GridExternalName;
+                ServiceToken = old.ServiceToken;
+                ClientIPAddress = old.ClientIPAddress;
+                MyIpAddress = old.MyIpAddress;
+            }
+        }
+    }
+
+}
diff --git a/OpenSim/Services/HypergridService/UserAgentServiceBase.cs b/OpenSim/Services/HypergridService/UserAgentServiceBase.cs
new file mode 100644
index 0000000..a00e5a6
--- /dev/null
+++ b/OpenSim/Services/HypergridService/UserAgentServiceBase.cs
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Reflection;
+using Nini.Config;
+using OpenSim.Framework;
+using OpenSim.Data;
+using OpenSim.Services.Interfaces;
+using OpenSim.Services.Base;
+
+namespace OpenSim.Services.HypergridService
+{
+    public class UserAgentServiceBase : ServiceBase
+    {
+        protected IHGTravelingData m_Database = null;
+
+        public UserAgentServiceBase(IConfigSource config)
+            : base(config)
+        {
+            string dllName = String.Empty;
+            string connString = String.Empty;
+            string realm = "hg_traveling_data";
+
+            //
+            // Try reading the [DatabaseService] section, if it exists
+            //
+            IConfig dbConfig = config.Configs["DatabaseService"];
+            if (dbConfig != null)
+            {
+                if (dllName == String.Empty)
+                    dllName = dbConfig.GetString("StorageProvider", String.Empty);
+                if (connString == String.Empty)
+                    connString = dbConfig.GetString("ConnectionString", String.Empty);
+            }
+
+            //
+            // [UserAgentService] section overrides [DatabaseService], if it exists
+            //
+            IConfig gridConfig = config.Configs["UserAgentService"];
+            if (gridConfig != null)
+            {
+                dllName = gridConfig.GetString("StorageProvider", dllName);
+                connString = gridConfig.GetString("ConnectionString", connString);
+                realm = gridConfig.GetString("Realm", realm);
+            }
+
+            //
+            // We tried, but this doesn't exist. We can't proceed.
+            //
+            if (dllName.Equals(String.Empty))
+                throw new Exception("No StorageProvider configured");
+
+            m_Database = LoadPlugin<IHGTravelingData>(dllName, new Object[] { connString, realm });
+            if (m_Database == null)
+                throw new Exception("Could not find a storage interface in the given module");
+
+        }
+    }
+}