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Adds support for HG linking to specific regions within an instance. The format is Host:Port:Region. Refactored the linking code from MapSearchModule to HGHyperlink, so that it can be used both by the MapSearchModule and the Console command.
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192
OpenSim/Region/Framework/Scenes/Hypergrid/HGHyperlink.cs
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192
OpenSim/Region/Framework/Scenes/Hypergrid/HGHyperlink.cs
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/*
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* Copyright (c) Contributors, http://opensimulator.org/
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* See CONTRIBUTORS.TXT for a full list of copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the OpenSim Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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using System;
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using System.Reflection;
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using System.Net;
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using OpenSim.Framework;
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using OpenSim.Framework.Communications;
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using OpenMetaverse;
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using log4net;
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using Nini.Config;
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namespace OpenSim.Region.Framework.Scenes.Hypergrid
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{
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public class HGHyperlink
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{
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private static readonly ILog m_log =
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LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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private static Random random = new Random();
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public static RegionInfo TryLinkRegionToCoords(Scene m_scene, IClientAPI client, string mapName, uint xloc, uint yloc)
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{
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string host = "127.0.0.1";
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string portstr;
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string regionName = "";
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uint port = 9000;
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string[] parts = mapName.Split(new char[] { ':' });
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if (parts.Length >= 1)
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{
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host = parts[0];
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}
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if (parts.Length >= 2)
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{
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portstr = parts[1];
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if (!UInt32.TryParse(portstr, out port))
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regionName = parts[1];
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}
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// always take the last one
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if (parts.Length >= 3)
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{
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regionName = parts[2];
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}
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// Sanity check. Don't ever link to this sim.
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IPAddress ipaddr = null;
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try
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{
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ipaddr = Util.GetHostFromDNS(host);
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}
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catch { }
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if ((ipaddr != null) &&
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!((m_scene.RegionInfo.ExternalEndPoint.Address.Equals(ipaddr)) && (m_scene.RegionInfo.HttpPort == port)))
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{
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RegionInfo regInfo;
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bool success = TryCreateLink(m_scene, client, xloc, yloc, regionName, port, host, out regInfo);
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if (success)
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{
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regInfo.RegionName = mapName;
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return regInfo;
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}
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}
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return null;
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}
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public static RegionInfo TryLinkRegion(Scene m_scene, IClientAPI client, string mapName)
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{
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uint xloc = (uint)(random.Next(0, Int16.MaxValue));
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return TryLinkRegionToCoords(m_scene, client, mapName, xloc, 0);
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}
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public static bool TryCreateLink(Scene m_scene, IClientAPI client, uint xloc, uint yloc,
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string externalRegionName, uint externalPort, string externalHostName, out RegionInfo regInfo)
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{
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m_log.DebugFormat("[HGrid]: Link to {0}:{1}, in {2}-{3}", externalHostName, externalPort, xloc, yloc);
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regInfo = new RegionInfo();
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regInfo.RegionName = externalRegionName;
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regInfo.HttpPort = externalPort;
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regInfo.ExternalHostName = externalHostName;
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regInfo.RegionLocX = xloc;
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regInfo.RegionLocY = yloc;
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try
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{
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regInfo.InternalEndPoint = new IPEndPoint(IPAddress.Parse("0.0.0.0"), (int)0);
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}
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catch (Exception e)
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{
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m_log.Warn("[HGrid]: Wrong format for link-region: " + e.Message);
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return false;
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}
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//regInfo.RemotingAddress = regInfo.ExternalEndPoint.Address.ToString();
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// Finally, link it
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try
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{
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m_scene.CommsManager.GridService.RegisterRegion(regInfo);
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}
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catch (Exception e)
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{
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m_log.Warn("[HGrid]: Unable to link region: " + e.Message);
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return false;
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}
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uint x, y;
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if (!Check4096(m_scene, regInfo, out x, out y))
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{
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m_scene.CommsManager.GridService.DeregisterRegion(regInfo);
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if (client != null)
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client.SendAlertMessage("Region is too far (" + x + ", " + y + ")");
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m_log.Info("[HGrid]: Unable to link, region is too far (" + x + ", " + y + ")");
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return false;
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}
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if (!CheckCoords(m_scene.RegionInfo.RegionLocX, m_scene.RegionInfo.RegionLocY, x, y))
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{
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m_scene.CommsManager.GridService.DeregisterRegion(regInfo);
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if (client != null)
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client.SendAlertMessage("Region has incompatible coordinates (" + x + ", " + y + ")");
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m_log.Info("[HGrid]: Unable to link, region has incompatible coordinates (" + x + ", " + y + ")");
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return false;
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}
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m_log.Debug("[HGrid]: link region succeeded");
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return true;
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}
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/// <summary>
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/// Cope with this viewer limitation.
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/// </summary>
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/// <param name="regInfo"></param>
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/// <returns></returns>
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public static bool Check4096(Scene m_scene, RegionInfo regInfo, out uint x, out uint y)
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{
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ulong realHandle;
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if (UInt64.TryParse(regInfo.regionSecret, out realHandle))
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{
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Utils.LongToUInts(realHandle, out x, out y);
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x = x / Constants.RegionSize;
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y = y / Constants.RegionSize;
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if ((Math.Abs((int)m_scene.RegionInfo.RegionLocX - (int)x) >= 4096) ||
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(Math.Abs((int)m_scene.RegionInfo.RegionLocY - (int)y) >= 4096))
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{
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return false;
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}
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return true;
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}
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else
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{
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m_scene.CommsManager.GridService.RegisterRegion(regInfo);
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m_log.Debug("[HGrid]: Gnomes. Region deregistered.");
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x = y = 0;
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return false;
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}
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}
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public static bool CheckCoords(uint thisx, uint thisy, uint x, uint y)
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{
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if ((thisx == x) && (thisy == y))
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return false;
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return true;
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}
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}
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}
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