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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 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;
using System.Collections.Generic;
using System.Net;
using System.Reflection;
using System.Threading;
using System.Timers;
using log4net;
using Nwc.XmlRpc;
using OpenMetaverse;
using OpenSim.Data;
using OpenSim.Framework;
using OpenSim.Grid.Framework;
using Timer = System.Timers.Timer;
namespace OpenSim.Grid.MessagingServer.Modules
{
public class MessageRegionModule : IMessageRegionLookup
{
private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
private MessageServerConfig m_cfg;
private IInterServiceUserService m_userServerModule;
private IGridServiceCore m_messageCore;
// a dictionary of all current regions this server knows about
private Dictionary<ulong, RegionProfileData> m_regionInfoCache = new Dictionary<ulong, RegionProfileData>();
public MessageRegionModule(MessageServerConfig config, IGridServiceCore messageCore)
{
m_cfg = config;
m_messageCore = messageCore;
}
public void Initialise()
{
m_messageCore.RegisterInterface<IMessageRegionLookup>(this);
}
public void PostInitialise()
{
IInterServiceUserService messageUserServer;
if (m_messageCore.TryGet<IInterServiceUserService>(out messageUserServer))
{
m_userServerModule = messageUserServer;
}
}
public void RegisterHandlers()
{
//have these in separate method as some servers restart the http server and reregister all the handlers.
}
/// <summary>
/// Gets and caches a RegionInfo object from the gridserver based on regionhandle
/// if the regionhandle is already cached, use the cached values
/// Gets called by lots of threads!!!!!
/// </summary>
/// <param name="regionhandle">handle to the XY of the region we're looking for</param>
/// <returns>A RegionInfo object to stick in the presence info</returns>
public RegionProfileData GetRegionInfo(ulong regionhandle)
{
RegionProfileData regionInfo = null;
lock (m_regionInfoCache)
{
m_regionInfoCache.TryGetValue(regionhandle, out regionInfo);
}
if (regionInfo == null) // not found in cache
{
regionInfo = RequestRegionInfo(regionhandle);
if (regionInfo != null) // lookup was successful
{
lock (m_regionInfoCache)
{
m_regionInfoCache[regionhandle] = regionInfo;
}
}
}
return regionInfo;
}
public int ClearRegionCache()
{
int cachecount = 0;
lock (m_regionInfoCache)
{
cachecount = m_regionInfoCache.Count;
m_regionInfoCache.Clear();
}
return cachecount;
}
/// <summary>
/// Get RegionProfileData from the GridServer.
/// We'll cache this information in GetRegionInfo and use it for presence updates
/// </summary>
/// <param name="regionHandle"></param>
/// <returns></returns>
public RegionProfileData RequestRegionInfo(ulong regionHandle)
{
RegionProfileData regionProfile = null;
try
{
Hashtable requestData = new Hashtable();
requestData["region_handle"] = regionHandle.ToString();
requestData["authkey"] = m_cfg.GridSendKey;
ArrayList SendParams = new ArrayList();
SendParams.Add(requestData);
XmlRpcRequest GridReq = new XmlRpcRequest("simulator_data_request", SendParams);
XmlRpcResponse GridResp = GridReq.Send(m_cfg.GridServerURL, 3000);
Hashtable responseData = (Hashtable)GridResp.Value;
if (responseData.ContainsKey("error"))
{
m_log.Error("[GRID]: error received from grid server" + responseData["error"]);
return null;
}
uint regX = Convert.ToUInt32((string)responseData["region_locx"]);
uint regY = Convert.ToUInt32((string)responseData["region_locy"]);
string internalIpStr = (string)responseData["sim_ip"];
regionProfile = new RegionProfileData();
regionProfile.httpPort = (uint)Convert.ToInt32((string)responseData["http_port"]);
regionProfile.httpServerURI = "http://" + internalIpStr + ":" + regionProfile.httpPort + "/";
regionProfile.regionHandle = Utils.UIntsToLong((regX * Constants.RegionSize), (regY * Constants.RegionSize));
regionProfile.regionLocX = regX;
regionProfile.regionLocY = regY;
regionProfile.remotingPort = Convert.ToUInt32((string)responseData["remoting_port"]);
regionProfile.UUID = new UUID((string)responseData["region_UUID"]);
regionProfile.regionName = (string)responseData["region_name"];
}
catch (WebException)
{
m_log.Error("[GRID]: " +
"Region lookup failed for: " + regionHandle.ToString() +
" - Is the GridServer down?");
}
return regionProfile;
}
public XmlRpcResponse RegionStartup(XmlRpcRequest request, IPEndPoint remoteClient)
{
Hashtable requestData = (Hashtable)request.Params[0];
Hashtable result = new Hashtable();
result["success"] = "FALSE";
if (m_userServerModule.SendToUserServer(requestData, "region_startup"))
result["success"] = "TRUE";
XmlRpcResponse response = new XmlRpcResponse();
response.Value = result;
return response;
}
public XmlRpcResponse RegionShutdown(XmlRpcRequest request, IPEndPoint remoteClient)
{
Hashtable requestData = (Hashtable)request.Params[0];
Hashtable result = new Hashtable();
result["success"] = "FALSE";
if (m_userServerModule.SendToUserServer(requestData, "region_shutdown"))
result["success"] = "TRUE";
XmlRpcResponse response = new XmlRpcResponse();
response.Value = result;
return response;
}
}
}
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