Integrated the hyperlinking with the GridService.

1 files changed, 614 insertions, 0 deletions

diff --git a/OpenSim/Services/GridService/HypergridLinker.cs b/OpenSim/Services/GridService/HypergridLinker.cs
new file mode 100644
index 0000000..b0cf723
--- /dev/null
+++ b/OpenSim/Services/GridService/HypergridLinker.cs
@@ -0,0 +1,614 @@
+/*
+ * 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.Xml;
+
+using Nini.Config;
+using log4net;
+using OpenSim.Framework;
+using OpenSim.Framework.Console;
+using OpenSim.Data;
+using OpenSim.Server.Base;
+using OpenSim.Services.Interfaces;
+using OpenSim.Services.Connectors.Hypergrid;
+using GridRegion = OpenSim.Services.Interfaces.GridRegion;
+using OpenMetaverse;
+
+namespace OpenSim.Services.GridService
+{
+    public class HypergridLinker 
+    {
+        private static readonly ILog m_log =
+                LogManager.GetLogger(
+                MethodBase.GetCurrentMethod().DeclaringType);
+
+        private static UUID m_HGMapImage = new UUID("00000000-0000-1111-9999-000000000013");
+
+        private static uint m_autoMappingX = 0;
+        private static uint m_autoMappingY = 0;
+        private static bool m_enableAutoMapping = false;
+
+        protected IRegionData m_Database;
+        protected GridService m_GridService;
+        protected IAssetService m_AssetService;
+        protected GatekeeperServiceConnector m_GatekeeperConnector;
+
+        protected UUID m_ScopeID = UUID.Zero;
+
+        // Hyperlink regions are hyperlinks on the map
+        public readonly Dictionary<UUID, GridRegion> m_HyperlinkRegions = new Dictionary<UUID, GridRegion>();
+        protected Dictionary<UUID, ulong> m_HyperlinkHandles = new Dictionary<UUID, ulong>();
+
+        protected GridRegion m_DefaultRegion;
+        protected GridRegion DefaultRegion
+        {
+            get
+            {
+                if (m_DefaultRegion == null)
+                {
+                    List<GridRegion> defs = m_GridService.GetDefaultRegions(m_ScopeID);
+                    if (defs != null && defs.Count > 0)
+                        m_DefaultRegion = defs[0];
+                    else
+                    {
+                        // Best guess, may be totally off
+                        m_DefaultRegion = new GridRegion(1000, 1000);
+                        m_log.WarnFormat("[HYPERGRID LINKER]: This grid does not have a default region. Assuming default coordinates at 1000, 1000.");
+                    }
+                }
+                return m_DefaultRegion;
+            }
+        }
+
+        public HypergridLinker(IConfigSource config, GridService gridService, IRegionData db)
+        {
+            m_log.DebugFormat("[HYPERGRID LINKER]: Starting...");
+
+            m_Database = db;
+            m_GridService = gridService;
+
+            IConfig gridConfig = config.Configs["GridService"];
+            if (gridConfig != null)
+            {
+                string assetService = gridConfig.GetString("AssetService", string.Empty);
+
+                Object[] args = new Object[] { config };
+
+                if (assetService != string.Empty)
+                    m_AssetService = ServerUtils.LoadPlugin<IAssetService>(assetService, args);
+
+                string scope = gridConfig.GetString("ScopeID", string.Empty);
+                if (scope != string.Empty)
+                    UUID.TryParse(scope, out m_ScopeID);
+
+                m_GatekeeperConnector = new GatekeeperServiceConnector(m_AssetService);
+
+                m_log.DebugFormat("[HYPERGRID LINKER]: Loaded all services...");
+            }
+            
+
+            MainConsole.Instance.Commands.AddCommand("hypergrid", false, "link-region",
+                "link-region <Xloc> <Yloc> <HostName>:<HttpPort>[:<RemoteRegionName>] <cr>",
+                "Link a hypergrid region", RunCommand);
+            MainConsole.Instance.Commands.AddCommand("hypergrid", false, "unlink-region",
+                "unlink-region <local name> or <HostName>:<HttpPort> <cr>",
+                "Unlink a hypergrid region", RunCommand);
+            MainConsole.Instance.Commands.AddCommand("hypergrid", false, "link-mapping", "link-mapping [<x> <y>] <cr>",
+                "Set local coordinate to map HG regions to", RunCommand);
+            MainConsole.Instance.Commands.AddCommand("hypergrid", false, "show hyperlinks", "show hyperlinks <cr>",
+                "List the HG regions", HandleShow);
+        }
+
+
+        #region Link Region
+
+        public bool LinkRegion(string regionDescriptor, out UUID regionID, out ulong regionHandle, out string imageURL, out string reason)
+        {
+            regionID = UUID.Zero;
+            imageURL = string.Empty;
+            regionHandle = 0;
+            reason = string.Empty;
+            int xloc = random.Next(0, Int16.MaxValue) * (int)Constants.RegionSize;
+            GridRegion region = TryLinkRegionToCoords(regionDescriptor, xloc, 0, out reason);
+            if (region == null)
+                return false;
+
+            regionID = region.RegionID;
+            regionHandle = region.RegionHandle;
+            return true;
+        }
+
+        private static Random random = new Random();
+
+        // From the command line link-region
+        public GridRegion TryLinkRegionToCoords(string mapName, int xloc, int yloc, out string reason)
+        {
+            reason = string.Empty;
+            string host = "127.0.0.1";
+            string portstr;
+            string regionName = "";
+            uint port = 9000;
+            string[] parts = mapName.Split(new char[] { ':' });
+            if (parts.Length >= 1)
+            {
+                host = parts[0];
+            }
+            if (parts.Length >= 2)
+            {
+                portstr = parts[1];
+                //m_log.Debug("-- port = " + portstr);
+                if (!UInt32.TryParse(portstr, out port))
+                    regionName = parts[1];
+            }
+            // always take the last one
+            if (parts.Length >= 3)
+            {
+                regionName = parts[2];
+            }
+
+            // Sanity check. Don't ever link to this sim.
+            IPAddress ipaddr = null;
+            try
+            {
+                ipaddr = Util.GetHostFromDNS(host);
+            }
+            catch { }
+
+            GridRegion regInfo;
+            bool success = TryCreateLink(xloc, yloc, regionName, port, host, out regInfo, out reason);
+            if (success)
+            {
+                regInfo.RegionName = mapName;
+                return regInfo;
+            }
+
+            return null;
+        }
+
+
+        // From the command line and the 2 above
+        public bool TryCreateLink(int xloc, int yloc,
+            string externalRegionName, uint externalPort, string externalHostName, out GridRegion regInfo, out string reason)
+        {
+            m_log.DebugFormat("[HYPERGRID LINKER]: Link to {0}:{1}, in {2}-{3}", externalHostName, externalPort, xloc, yloc);
+
+            reason = string.Empty;
+            regInfo = new GridRegion();
+            regInfo.RegionName = externalRegionName;
+            regInfo.HttpPort = externalPort;
+            regInfo.ExternalHostName = externalHostName;
+            regInfo.RegionLocX = xloc;
+            regInfo.RegionLocY = yloc;
+
+            try
+            {
+                regInfo.InternalEndPoint = new IPEndPoint(IPAddress.Parse("0.0.0.0"), (int)0);
+            }
+            catch (Exception e)
+            {
+                m_log.Warn("[HYPERGRID LINKER]: Wrong format for link-region: " + e.Message);
+                reason = "Internal error";
+                return false;
+            }
+
+            // Finally, link it
+            ulong handle = 0;
+            UUID regionID = UUID.Zero;
+            string imageURL = string.Empty;
+            if (!m_GatekeeperConnector.LinkRegion(regInfo, out regionID, out handle, out imageURL, out reason))
+                return false;
+
+            if (regionID != UUID.Zero)
+            {
+                regInfo.RegionID = regionID;
+                // Try get the map image
+                regInfo.TerrainImage = m_GatekeeperConnector.GetMapImage(regionID, imageURL);
+                // I need a texture that works for this... the one I tried doesn't seem to be working
+                //regInfo.TerrainImage = m_HGMapImage;
+
+                AddHyperlinkRegion(regInfo, handle);
+                m_log.Info("[HYPERGRID LINKER]: Successfully linked to region_uuid " + regInfo.RegionID);
+
+            }
+            else
+            {
+                m_log.Warn("[HYPERGRID LINKER]: Unable to link region");
+                reason = "Remote region could not be found";
+                return false;
+            }
+
+            uint x, y;
+            if (!Check4096(handle, out x, out y))
+            {
+                RemoveHyperlinkRegion(regInfo.RegionID);
+                reason = "Region is too far (" + x + ", " + y + ")";
+                m_log.Info("[HYPERGRID LINKER]: Unable to link, region is too far (" + x + ", " + y + ")");
+                return false;
+            }
+
+            m_log.Debug("[HYPERGRID LINKER]: link region succeeded");
+            return true;
+        }
+
+        public bool TryUnlinkRegion(string mapName)
+        {
+            GridRegion regInfo = null;
+            if (mapName.Contains(":"))
+            {
+                string host = "127.0.0.1";
+                //string portstr;
+                //string regionName = "";
+                uint port = 9000;
+                string[] parts = mapName.Split(new char[] { ':' });
+                if (parts.Length >= 1)
+                {
+                    host = parts[0];
+                }
+
+                foreach (GridRegion r in m_HyperlinkRegions.Values)
+                    if (host.Equals(r.ExternalHostName) && (port == r.HttpPort))
+                        regInfo = r;
+            }
+            else
+            {
+                foreach (GridRegion r in m_HyperlinkRegions.Values)
+                    if (r.RegionName.Equals(mapName))
+                        regInfo = r;
+            }
+            if (regInfo != null)
+            {
+                RemoveHyperlinkRegion(regInfo.RegionID);
+                return true;
+            }
+            else
+            {
+                m_log.InfoFormat("[HYPERGRID LINKER]: Region {0} not found", mapName);
+                return false;
+            }
+        }
+
+        /// <summary>
+        /// Cope with this viewer limitation.
+        /// </summary>
+        /// <param name="regInfo"></param>
+        /// <returns></returns>
+        public bool Check4096(ulong realHandle, out uint x, out uint y)
+        {
+            GridRegion defRegion = DefaultRegion;
+
+            uint ux = 0, uy = 0;
+            Utils.LongToUInts(realHandle, out ux, out uy);
+            x = ux / Constants.RegionSize;
+            y = uy / Constants.RegionSize;
+
+            if ((Math.Abs((int)defRegion.RegionLocX - ux) >= 4096 * Constants.RegionSize) ||
+                (Math.Abs((int)defRegion.RegionLocY - uy) >= 4096 * Constants.RegionSize))
+            {
+                return false;
+            }
+            return true;
+        }
+
+        private void AddHyperlinkRegion(GridRegion regionInfo, ulong regionHandle)
+        {
+            //m_HyperlinkRegions[regionInfo.RegionID] = regionInfo;
+            //m_HyperlinkHandles[regionInfo.RegionID] = regionHandle;
+
+            RegionData rdata = m_GridService.RegionInfo2RegionData(regionInfo);
+            int flags = (int)OpenSim.Data.RegionFlags.Hyperlink + (int)OpenSim.Data.RegionFlags.NoDirectLogin + (int)OpenSim.Data.RegionFlags.RegionOnline;
+            rdata.Data["flags"] = flags.ToString();
+
+            m_Database.Store(rdata);
+
+        }
+
+        private void RemoveHyperlinkRegion(UUID regionID)
+        {
+            //// Try the hyperlink collection
+            //if (m_HyperlinkRegions.ContainsKey(regionID))
+            //{
+            //    m_HyperlinkRegions.Remove(regionID);
+            //    m_HyperlinkHandles.Remove(regionID);
+            //}
+            m_Database.Delete(regionID);
+        }
+
+        #endregion
+
+
+        #region Console Commands
+
+        public void HandleShow(string module, string[] cmd)
+        {
+            MainConsole.Instance.Output("Not Implemented Yet");
+            //if (cmd.Length != 2)
+            //{
+            //    MainConsole.Instance.Output("Syntax: show hyperlinks");
+            //    return;
+            //}
+            //List<GridRegion> regions = new List<GridRegion>(m_HypergridService.m_HyperlinkRegions.Values);
+            //if (regions == null || regions.Count < 1)
+            //{
+            //    MainConsole.Instance.Output("No hyperlinks");
+            //    return;
+            //}
+
+            //MainConsole.Instance.Output("Region Name          Region UUID");
+            //MainConsole.Instance.Output("Location             URI");
+            //MainConsole.Instance.Output("Owner ID  ");
+            //MainConsole.Instance.Output("-------------------------------------------------------------------------------");
+            //foreach (GridRegion r in regions)
+            //{
+            //    MainConsole.Instance.Output(String.Format("{0,-20} {1}\n{2,-20} {3}\n{4,-39} \n\n",
+            //            r.RegionName, r.RegionID,
+            //            String.Format("{0},{1}", r.RegionLocX, r.RegionLocY), "http://" + r.ExternalHostName + ":" + r.HttpPort.ToString(),
+            //            r.EstateOwner.ToString()));
+            //}
+            //return;
+        }
+        public void RunCommand(string module, string[] cmdparams)
+        {
+            List<string> args = new List<string>(cmdparams);
+            if (args.Count < 1)
+                return;
+
+            string command = args[0];
+            args.RemoveAt(0);
+
+            cmdparams = args.ToArray();
+
+            RunHGCommand(command, cmdparams);
+
+        }
+
+        private void RunHGCommand(string command, string[] cmdparams)
+        {
+            if (command.Equals("link-mapping"))
+            {
+                if (cmdparams.Length == 2)
+                {
+                    try
+                    {
+                        m_autoMappingX = Convert.ToUInt32(cmdparams[0]);
+                        m_autoMappingY = Convert.ToUInt32(cmdparams[1]);
+                        m_enableAutoMapping = true;
+                    }
+                    catch (Exception)
+                    {
+                        m_autoMappingX = 0;
+                        m_autoMappingY = 0;
+                        m_enableAutoMapping = false;
+                    }
+                }
+            }
+            else if (command.Equals("link-region"))
+            {
+                if (cmdparams.Length < 3)
+                {
+                    if ((cmdparams.Length == 1) || (cmdparams.Length == 2))
+                    {
+                        LoadXmlLinkFile(cmdparams);
+                    }
+                    else
+                    {
+                        LinkRegionCmdUsage();
+                    }
+                    return;
+                }
+
+                if (cmdparams[2].Contains(":"))
+                {
+                    // New format
+                    int xloc, yloc;
+                    string mapName;
+                    try
+                    {
+                        xloc = Convert.ToInt32(cmdparams[0]);
+                        yloc = Convert.ToInt32(cmdparams[1]);
+                        mapName = cmdparams[2];
+                        if (cmdparams.Length > 3)
+                            for (int i = 3; i < cmdparams.Length; i++)
+                                mapName += " " + cmdparams[i];
+
+                        //m_log.Info(">> MapName: " + mapName);
+                    }
+                    catch (Exception e)
+                    {
+                        MainConsole.Instance.Output("[HGrid] Wrong format for link-region command: " + e.Message);
+                        LinkRegionCmdUsage();
+                        return;
+                    }
+
+                    // Convert cell coordinates given by the user to meters
+                    xloc = xloc * (int)Constants.RegionSize;
+                    yloc = yloc * (int)Constants.RegionSize;
+                    string reason = string.Empty;
+                    if (TryLinkRegionToCoords(mapName, xloc, yloc, out reason) == null)
+                        MainConsole.Instance.Output("Failed to link region: " + reason);
+                    MainConsole.Instance.Output("Hyperlink estalished");
+                }
+                else
+                {
+                    // old format
+                    GridRegion regInfo;
+                    int xloc, yloc;
+                    uint externalPort;
+                    string externalHostName;
+                    try
+                    {
+                        xloc = Convert.ToInt32(cmdparams[0]);
+                        yloc = Convert.ToInt32(cmdparams[1]);
+                        externalPort = Convert.ToUInt32(cmdparams[3]);
+                        externalHostName = cmdparams[2];
+                        //internalPort = Convert.ToUInt32(cmdparams[4]);
+                        //remotingPort = Convert.ToUInt32(cmdparams[5]);
+                    }
+                    catch (Exception e)
+                    {
+                        MainConsole.Instance.Output("[HGrid] Wrong format for link-region command: " + e.Message);
+                        LinkRegionCmdUsage();
+                        return;
+                    }
+
+                    // Convert cell coordinates given by the user to meters
+                    xloc = xloc * (int)Constants.RegionSize;
+                    yloc = yloc * (int)Constants.RegionSize;
+                    string reason = string.Empty;
+                    if (TryCreateLink(xloc, yloc, "", externalPort, externalHostName, out regInfo, out reason))
+                    {
+                        if (cmdparams.Length >= 5)
+                        {
+                            regInfo.RegionName = "";
+                            for (int i = 4; i < cmdparams.Length; i++)
+                                regInfo.RegionName += cmdparams[i] + " ";
+                        }
+                    }
+                }
+                return;
+            }
+            else if (command.Equals("unlink-region"))
+            {
+                if (cmdparams.Length < 1)
+                {
+                    UnlinkRegionCmdUsage();
+                    return;
+                }
+                if (TryUnlinkRegion(cmdparams[0]))
+                    MainConsole.Instance.Output("Successfully unlinked " + cmdparams[0]);
+                else
+                    MainConsole.Instance.Output("Unable to unlink " + cmdparams[0] + ", region not found.");
+            }
+        }
+
+        private void LoadXmlLinkFile(string[] cmdparams)
+        {
+            //use http://www.hgurl.com/hypergrid.xml for test
+            try
+            {
+                XmlReader r = XmlReader.Create(cmdparams[0]);
+                XmlConfigSource cs = new XmlConfigSource(r);
+                string[] excludeSections = null;
+
+                if (cmdparams.Length == 2)
+                {
+                    if (cmdparams[1].ToLower().StartsWith("excludelist:"))
+                    {
+                        string excludeString = cmdparams[1].ToLower();
+                        excludeString = excludeString.Remove(0, 12);
+                        char[] splitter = { ';' };
+
+                        excludeSections = excludeString.Split(splitter);
+                    }
+                }
+
+                for (int i = 0; i < cs.Configs.Count; i++)
+                {
+                    bool skip = false;
+                    if ((excludeSections != null) && (excludeSections.Length > 0))
+                    {
+                        for (int n = 0; n < excludeSections.Length; n++)
+                        {
+                            if (excludeSections[n] == cs.Configs[i].Name.ToLower())
+                            {
+                                skip = true;
+                                break;
+                            }
+                        }
+                    }
+                    if (!skip)
+                    {
+                        ReadLinkFromConfig(cs.Configs[i]);
+                    }
+                }
+            }
+            catch (Exception e)
+            {
+                m_log.Error(e.ToString());
+            }
+        }
+
+
+        private void ReadLinkFromConfig(IConfig config)
+        {
+            GridRegion regInfo;
+            int xloc, yloc;
+            uint externalPort;
+            string externalHostName;
+            uint realXLoc, realYLoc;
+
+            xloc = Convert.ToInt32(config.GetString("xloc", "0"));
+            yloc = Convert.ToInt32(config.GetString("yloc", "0"));
+            externalPort = Convert.ToUInt32(config.GetString("externalPort", "0"));
+            externalHostName = config.GetString("externalHostName", "");
+            realXLoc = Convert.ToUInt32(config.GetString("real-xloc", "0"));
+            realYLoc = Convert.ToUInt32(config.GetString("real-yloc", "0"));
+
+            if (m_enableAutoMapping)
+            {
+                xloc = (int)((xloc % 100) + m_autoMappingX);
+                yloc = (int)((yloc % 100) + m_autoMappingY);
+            }
+
+            if (((realXLoc == 0) && (realYLoc == 0)) ||
+                (((realXLoc - xloc < 3896) || (xloc - realXLoc < 3896)) &&
+                 ((realYLoc - yloc < 3896) || (yloc - realYLoc < 3896))))
+            {
+                xloc = xloc * (int)Constants.RegionSize;
+                yloc = yloc * (int)Constants.RegionSize;
+                string reason = string.Empty;
+                if (TryCreateLink(xloc, yloc, "", externalPort,
+                                                     externalHostName, out regInfo, out reason))
+                {
+                    regInfo.RegionName = config.GetString("localName", "");
+                }
+                else
+                    MainConsole.Instance.Output("Unable to link " + externalHostName + ": " + reason);
+            }
+        }
+
+
+        private void LinkRegionCmdUsage()
+        {
+            MainConsole.Instance.Output("Usage: link-region <Xloc> <Yloc> <HostName>:<HttpPort>[:<RemoteRegionName>]");
+            MainConsole.Instance.Output("Usage: link-region <Xloc> <Yloc> <HostName> <HttpPort> [<LocalName>]");
+            MainConsole.Instance.Output("Usage: link-region <URI_of_xml> [<exclude>]");
+        }
+
+        private void UnlinkRegionCmdUsage()
+        {
+            MainConsole.Instance.Output("Usage: unlink-region <HostName>:<HttpPort>");
+            MainConsole.Instance.Output("Usage: unlink-region <LocalName>");
+        }
+
+        #endregion
+
+    }
+}