From ff0fa1290397d96dbf49477a2668fa62e9be22dc Mon Sep 17 00:00:00 2001 From: diva Date: Sat, 7 Feb 2009 16:10:23 +0000 Subject: 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. --- .../Framework/Scenes/Hypergrid/HGHyperlink.cs | 192 +++++++++++++++++++++ 1 file changed, 192 insertions(+) create mode 100644 OpenSim/Region/Framework/Scenes/Hypergrid/HGHyperlink.cs (limited to 'OpenSim/Region/Framework/Scenes') diff --git a/OpenSim/Region/Framework/Scenes/Hypergrid/HGHyperlink.cs b/OpenSim/Region/Framework/Scenes/Hypergrid/HGHyperlink.cs new file mode 100644 index 0000000..6ee28cb --- /dev/null +++ b/OpenSim/Region/Framework/Scenes/Hypergrid/HGHyperlink.cs @@ -0,0 +1,192 @@ +/* + * Copyright (c) Contributors, http://opensimulator.org/ + * See CONTRIBUTORS.TXT for a full list of copyright holders. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the OpenSim Project nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +using System; +using System.Reflection; +using System.Net; +using OpenSim.Framework; +using OpenSim.Framework.Communications; +using OpenMetaverse; +using log4net; +using Nini.Config; + +namespace OpenSim.Region.Framework.Scenes.Hypergrid +{ + public class HGHyperlink + { + private static readonly ILog m_log = + LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); + private static Random random = new Random(); + + public static RegionInfo TryLinkRegionToCoords(Scene m_scene, IClientAPI client, string mapName, uint xloc, uint yloc) + { + 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]; + 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 { } + + if ((ipaddr != null) && + !((m_scene.RegionInfo.ExternalEndPoint.Address.Equals(ipaddr)) && (m_scene.RegionInfo.HttpPort == port))) + { + RegionInfo regInfo; + bool success = TryCreateLink(m_scene, client, xloc, yloc, regionName, port, host, out regInfo); + if (success) + { + regInfo.RegionName = mapName; + return regInfo; + } + } + + return null; + } + + public static RegionInfo TryLinkRegion(Scene m_scene, IClientAPI client, string mapName) + { + uint xloc = (uint)(random.Next(0, Int16.MaxValue)); + return TryLinkRegionToCoords(m_scene, client, mapName, xloc, 0); + } + + public static bool TryCreateLink(Scene m_scene, IClientAPI client, uint xloc, uint yloc, + string externalRegionName, uint externalPort, string externalHostName, out RegionInfo regInfo) + { + m_log.DebugFormat("[HGrid]: Link to {0}:{1}, in {2}-{3}", externalHostName, externalPort, xloc, yloc); + + regInfo = new RegionInfo(); + 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("[HGrid]: Wrong format for link-region: " + e.Message); + return false; + } + //regInfo.RemotingAddress = regInfo.ExternalEndPoint.Address.ToString(); + + // Finally, link it + try + { + m_scene.CommsManager.GridService.RegisterRegion(regInfo); + } + catch (Exception e) + { + m_log.Warn("[HGrid]: Unable to link region: " + e.Message); + return false; + } + + uint x, y; + if (!Check4096(m_scene, regInfo, out x, out y)) + { + m_scene.CommsManager.GridService.DeregisterRegion(regInfo); + if (client != null) + client.SendAlertMessage("Region is too far (" + x + ", " + y + ")"); + m_log.Info("[HGrid]: Unable to link, region is too far (" + x + ", " + y + ")"); + return false; + } + + if (!CheckCoords(m_scene.RegionInfo.RegionLocX, m_scene.RegionInfo.RegionLocY, x, y)) + { + m_scene.CommsManager.GridService.DeregisterRegion(regInfo); + if (client != null) + client.SendAlertMessage("Region has incompatible coordinates (" + x + ", " + y + ")"); + m_log.Info("[HGrid]: Unable to link, region has incompatible coordinates (" + x + ", " + y + ")"); + return false; + } + + m_log.Debug("[HGrid]: link region succeeded"); + return true; + } + + /// + /// Cope with this viewer limitation. + /// + /// + /// + public static bool Check4096(Scene m_scene, RegionInfo regInfo, out uint x, out uint y) + { + ulong realHandle; + if (UInt64.TryParse(regInfo.regionSecret, out realHandle)) + { + Utils.LongToUInts(realHandle, out x, out y); + x = x / Constants.RegionSize; + y = y / Constants.RegionSize; + + if ((Math.Abs((int)m_scene.RegionInfo.RegionLocX - (int)x) >= 4096) || + (Math.Abs((int)m_scene.RegionInfo.RegionLocY - (int)y) >= 4096)) + { + return false; + } + return true; + } + else + { + m_scene.CommsManager.GridService.RegisterRegion(regInfo); + m_log.Debug("[HGrid]: Gnomes. Region deregistered."); + x = y = 0; + return false; + } + } + + public static bool CheckCoords(uint thisx, uint thisy, uint x, uint y) + { + if ((thisx == x) && (thisy == y)) + return false; + return true; + } + + } +} -- cgit v1.1