416 lines
15 KiB
C#
416 lines
15 KiB
C#
/*
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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 OpenSimulator 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.Collections.Generic;
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using System.Net;
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using System.Reflection;
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using Nini.Config;
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using log4net;
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using OpenSim.Framework;
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using OpenSim.Framework.Console;
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using OpenSim.Data;
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using OpenSim.Server.Base;
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using OpenSim.Services.Interfaces;
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using OpenSim.Services.Connectors.Hypergrid;
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using GridRegion = OpenSim.Services.Interfaces.GridRegion;
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using OpenMetaverse;
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namespace OpenSim.Services.HypergridService
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{
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public class HypergridService : HypergridServiceBase, IHypergridService
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{
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private static readonly ILog m_log =
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LogManager.GetLogger(
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MethodBase.GetCurrentMethod().DeclaringType);
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private static HypergridService m_RootInstance = null;
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protected IConfigSource m_config;
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protected IAuthenticationService m_AuthenticationService = null;
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protected IGridService m_GridService;
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protected IAssetService m_AssetService;
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protected HypergridServiceConnector m_HypergridConnector;
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protected bool m_AllowDuplicateNames = false;
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protected UUID m_ScopeID = UUID.Zero;
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// Hyperlink regions are hyperlinks on the map
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public readonly Dictionary<UUID, GridRegion> m_HyperlinkRegions = new Dictionary<UUID, GridRegion>();
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protected Dictionary<UUID, ulong> m_HyperlinkHandles = new Dictionary<UUID, ulong>();
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protected GridRegion m_DefaultRegion;
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protected GridRegion DefaultRegion
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{
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get
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{
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if (m_DefaultRegion == null)
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{
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List<GridRegion> defs = m_GridService.GetDefaultRegions(m_ScopeID);
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if (defs != null && defs.Count > 0)
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m_DefaultRegion = defs[0];
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else
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{
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// Best guess, may be totally off
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m_DefaultRegion = new GridRegion(1000, 1000);
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m_log.WarnFormat("[HYPERGRID SERVICE]: This grid does not have a default region. Assuming default coordinates at 1000, 1000.");
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}
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}
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return m_DefaultRegion;
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}
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}
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public HypergridService(IConfigSource config)
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: base(config)
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{
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m_log.DebugFormat("[HYPERGRID SERVICE]: Starting...");
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m_config = config;
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IConfig gridConfig = config.Configs["HypergridService"];
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if (gridConfig != null)
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{
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string gridService = gridConfig.GetString("GridService", string.Empty);
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string authService = gridConfig.GetString("AuthenticationService", String.Empty);
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string assetService = gridConfig.GetString("AssetService", string.Empty);
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Object[] args = new Object[] { config };
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if (gridService != string.Empty)
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m_GridService = ServerUtils.LoadPlugin<IGridService>(gridService, args);
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if (m_GridService == null)
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throw new Exception("HypergridService cannot function without a GridService");
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if (authService != String.Empty)
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m_AuthenticationService = ServerUtils.LoadPlugin<IAuthenticationService>(authService, args);
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if (assetService != string.Empty)
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m_AssetService = ServerUtils.LoadPlugin<IAssetService>(assetService, args);
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m_AllowDuplicateNames = gridConfig.GetBoolean("AllowDuplicateNames", m_AllowDuplicateNames);
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string scope = gridConfig.GetString("ScopeID", string.Empty);
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if (scope != string.Empty)
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UUID.TryParse(scope, out m_ScopeID);
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m_HypergridConnector = new HypergridServiceConnector(m_AssetService);
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m_log.DebugFormat("[HYPERGRID SERVICE]: Loaded all services...");
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}
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if (m_RootInstance == null)
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{
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m_RootInstance = this;
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HGCommands hgCommands = new HGCommands(this);
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MainConsole.Instance.Commands.AddCommand("hypergrid", false, "link-region",
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"link-region <Xloc> <Yloc> <HostName>:<HttpPort>[:<RemoteRegionName>] <cr>",
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"Link a hypergrid region", hgCommands.RunCommand);
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MainConsole.Instance.Commands.AddCommand("hypergrid", false, "unlink-region",
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"unlink-region <local name> or <HostName>:<HttpPort> <cr>",
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"Unlink a hypergrid region", hgCommands.RunCommand);
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MainConsole.Instance.Commands.AddCommand("hypergrid", false, "link-mapping", "link-mapping [<x> <y>] <cr>",
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"Set local coordinate to map HG regions to", hgCommands.RunCommand);
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MainConsole.Instance.Commands.AddCommand("hypergrid", false, "show hyperlinks", "show hyperlinks <cr>",
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"List the HG regions", hgCommands.HandleShow);
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}
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}
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#region Link Region
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public bool LinkRegion(string regionDescriptor, out UUID regionID, out ulong regionHandle, out string imageURL, out string reason)
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{
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regionID = UUID.Zero;
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imageURL = string.Empty;
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regionHandle = 0;
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reason = string.Empty;
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int xloc = random.Next(0, Int16.MaxValue) * (int)Constants.RegionSize;
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GridRegion region = TryLinkRegionToCoords(regionDescriptor, xloc, 0, out reason);
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if (region == null)
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return false;
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regionID = region.RegionID;
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regionHandle = region.RegionHandle;
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return true;
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}
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private static Random random = new Random();
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// From the command line link-region
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public GridRegion TryLinkRegionToCoords(string mapName, int xloc, int yloc, out string reason)
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{
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reason = string.Empty;
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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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//m_log.Debug("-- port = " + portstr);
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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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GridRegion regInfo;
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bool success = TryCreateLink(xloc, yloc, regionName, port, host, out regInfo, out reason);
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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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return null;
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}
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// From the command line and the 2 above
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public bool TryCreateLink(int xloc, int yloc,
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string externalRegionName, uint externalPort, string externalHostName, out GridRegion regInfo, out string reason)
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{
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m_log.DebugFormat("[HYPERGRID SERVICE]: Link to {0}:{1}, in {2}-{3}", externalHostName, externalPort, xloc, yloc);
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reason = string.Empty;
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regInfo = new GridRegion();
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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("[HYPERGRID SERVICE]: Wrong format for link-region: " + e.Message);
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reason = "Internal error";
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return false;
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}
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// Finally, link it
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ulong handle = 0;
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UUID regionID = UUID.Zero;
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string imageURL = string.Empty;
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if (!m_HypergridConnector.LinkRegion(regInfo, out regionID, out handle, out imageURL, out reason))
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return false;
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if (regionID != UUID.Zero)
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{
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regInfo.RegionID = regionID;
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AddHyperlinkRegion(regInfo, handle);
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m_log.Info("[HYPERGRID SERVICE]: Successfully linked to region_uuid " + regInfo.RegionID);
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// Try get the map image
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regInfo.TerrainImage = m_HypergridConnector.GetMapImage(regionID, imageURL);
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}
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else
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{
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m_log.Warn("[HYPERGRID SERVICE]: Unable to link region");
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reason = "Remote region could not be found";
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return false;
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}
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uint x, y;
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if (!Check4096(regInfo, out x, out y))
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{
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RemoveHyperlinkRegion(regInfo.RegionID);
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reason = "Region is too far (" + x + ", " + y + ")";
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m_log.Info("[HYPERGRID SERVICE]: Unable to link, region is too far (" + x + ", " + y + ")");
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return false;
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}
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m_log.Debug("[HYPERGRID SERVICE]: link region succeeded");
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return true;
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}
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public bool TryUnlinkRegion(string mapName)
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{
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GridRegion regInfo = null;
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if (mapName.Contains(":"))
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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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foreach (GridRegion r in m_HyperlinkRegions.Values)
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if (host.Equals(r.ExternalHostName) && (port == r.HttpPort))
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regInfo = r;
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}
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else
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{
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foreach (GridRegion r in m_HyperlinkRegions.Values)
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if (r.RegionName.Equals(mapName))
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regInfo = r;
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}
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if (regInfo != null)
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{
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RemoveHyperlinkRegion(regInfo.RegionID);
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return true;
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}
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else
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{
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m_log.InfoFormat("[HYPERGRID SERVICE]: Region {0} not found", mapName);
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return false;
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}
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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 bool Check4096(GridRegion regInfo, out uint x, out uint y)
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{
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GridRegion defRegion = DefaultRegion;
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ulong realHandle = m_HyperlinkHandles[regInfo.RegionID];
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uint ux = 0, uy = 0;
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Utils.LongToUInts(realHandle, out ux, out uy);
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x = ux / Constants.RegionSize;
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y = uy / Constants.RegionSize;
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if ((Math.Abs((int)defRegion.RegionLocX - ux) >= 4096 * Constants.RegionSize) ||
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(Math.Abs((int)defRegion.RegionLocY - uy) >= 4096 * Constants.RegionSize))
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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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private void AddHyperlinkRegion(GridRegion regionInfo, ulong regionHandle)
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{
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m_HyperlinkRegions[regionInfo.RegionID] = regionInfo;
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m_HyperlinkHandles[regionInfo.RegionID] = regionHandle;
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}
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private void RemoveHyperlinkRegion(UUID regionID)
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{
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// Try the hyperlink collection
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if (m_HyperlinkRegions.ContainsKey(regionID))
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{
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m_HyperlinkRegions.Remove(regionID);
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m_HyperlinkHandles.Remove(regionID);
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}
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}
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#endregion
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#region Get Hyperlinks
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public GridRegion GetHyperlinkRegion(UUID regionID)
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{
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//GridRegion region = m_HypergridConnector.
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return null;
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}
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#endregion
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#region GetRegionBy X
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public GridRegion GetRegionByUUID(UUID regionID)
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{
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if (m_HyperlinkRegions.ContainsKey(regionID))
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return m_HyperlinkRegions[regionID];
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return null;
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}
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public GridRegion GetRegionByPosition(int x, int y)
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{
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foreach (GridRegion r in m_HyperlinkRegions.Values)
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if (r.RegionLocX == x && r.RegionLocY == y)
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return r;
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return null;
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}
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public GridRegion GetRegionByName(string name)
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{
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foreach (GridRegion r in m_HyperlinkRegions.Values)
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if (r.RegionName.ToLower() == name.ToLower())
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return r;
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return null;
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}
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public List<GridRegion> GetRegionsByName(string name)
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{
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List<GridRegion> regions = new List<GridRegion>();
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foreach (GridRegion r in m_HyperlinkRegions.Values)
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if ((r.RegionName != null) && r.RegionName.ToLower().StartsWith(name.ToLower()))
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regions.Add(r);
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return regions;
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}
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public List<GridRegion> GetRegionRange(int xmin, int xmax, int ymin, int ymax)
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{
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List<GridRegion> regions = new List<GridRegion>();
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foreach (GridRegion r in m_HyperlinkRegions.Values)
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if ((r.RegionLocX > xmin) && (r.RegionLocX < xmax) &&
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(r.RegionLocY > ymin) && (r.RegionLocY < ymax))
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regions.Add(r);
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return regions;
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}
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#endregion
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}
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}
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