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/*
* 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.Collections.Generic;
using System.Net;
using OpenSim.Framework;
using OpenSim.Region.Framework.Interfaces;
using OpenSim.Region.Framework.Scenes;
using OpenSim.Region.Framework.Scenes.Hypergrid;
using OpenMetaverse;
using log4net;
using Nini.Config;
namespace OpenSim.Region.Environment.Modules.World.WorldMap
{
public class MapSearchModule : IRegionModule
{
private static readonly ILog m_log =
LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
Scene m_scene = null; // only need one for communication with GridService
List<Scene> m_scenes = new List<Scene>();
#region IRegionModule Members
public void Initialise(Scene scene, IConfigSource source)
{
if (m_scene == null)
{
m_scene = scene;
}
m_scenes.Add(scene);
scene.EventManager.OnNewClient += OnNewClient;
}
public void PostInitialise()
{
}
public void Close()
{
m_scene = null;
m_scenes.Clear();
}
public string Name
{
get { return "MapSearchModule"; }
}
public bool IsSharedModule
{
get { return true; }
}
#endregion
private void OnNewClient(IClientAPI client)
{
client.OnMapNameRequest += OnMapNameRequest;
}
private void OnMapNameRequest(IClientAPI remoteClient, string mapName)
{
if (mapName.Length < 3)
{
remoteClient.SendAlertMessage("Use a search string with at least 3 characters");
return;
}
// try to fetch from GridServer
List<RegionInfo> regionInfos = m_scene.SceneGridService.RequestNamedRegions(mapName, 20);
if (regionInfos == null)
{
m_log.Warn("[MAPSEARCHMODULE]: RequestNamedRegions returned null. Old gridserver?");
// service wasn't available; maybe still an old GridServer. Try the old API, though it will return only one region
regionInfos = new List<RegionInfo>();
RegionInfo info = m_scene.SceneGridService.RequestClosestRegion(mapName);
if (info != null) regionInfos.Add(info);
}
if ((regionInfos.Count == 0) && IsHypergridOn())
{
// OK, we tried but there are no regions matching that name.
// Let's check quickly if this is a domain name, and if so link to it
if (mapName.Contains(".") && mapName.Contains(":"))
{
// It probably is a domain name. Try to link to it.
RegionInfo regInfo;
Scene cScene = GetClientScene(remoteClient);
regInfo = HGHyperlink.TryLinkRegion(cScene, remoteClient, mapName);
if (regInfo != null)
regionInfos.Add(regInfo);
}
}
List<MapBlockData> blocks = new List<MapBlockData>();
MapBlockData data;
if (regionInfos.Count > 0)
{
foreach (RegionInfo info in regionInfos)
{
data = new MapBlockData();
data.Agents = 0;
data.Access = 21; // TODO what's this?
data.MapImageId = info.RegionSettings.TerrainImageID;
data.Name = info.RegionName;
data.RegionFlags = 0; // TODO not used?
data.WaterHeight = 0; // not used
data.X = (ushort)info.RegionLocX;
data.Y = (ushort)info.RegionLocY;
blocks.Add(data);
}
}
// final block, closing the search result
data = new MapBlockData();
data.Agents = 0;
data.Access = 255;
data.MapImageId = UUID.Zero;
data.Name = mapName;
data.RegionFlags = 0;
data.WaterHeight = 0; // not used
data.X = 0;
data.Y = 0;
blocks.Add(data);
remoteClient.SendMapBlock(blocks, 0);
}
private bool IsHypergridOn()
{
return (m_scene.SceneGridService is HGSceneCommunicationService);
}
private Scene GetClientScene(IClientAPI client)
{
foreach (Scene s in m_scenes)
{
if (client.Scene.RegionInfo.RegionHandle == s.RegionInfo.RegionHandle)
return s;
}
return m_scene;
}
}
}
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