/*
* Copyright (c) Contributors, http://opensimulator.org/
* See CONTRIBUTORS.TXT for a full list of copyright holders.
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* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
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* notice, this list of conditions and the following disclaimer.
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* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
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* 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
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*/
using System;
using System.Collections;
using System.Collections.Generic;
using System.Reflection;
using System.Net;
using Nini.Config;
using OpenSim.Framework;
using OpenSim.Server.Base;
using OpenSim.Services.Interfaces;
using OpenSim.Framework.Servers.HttpServer;
using OpenSim.Server.Handlers.Base;
using GridRegion = OpenSim.Services.Interfaces.GridRegion;
using OpenMetaverse;
using log4net;
using Nwc.XmlRpc;
namespace OpenSim.Server.Handlers.Grid
{
public class HypergridServiceInConnector : ServiceConnector
{
private static readonly ILog m_log =
LogManager.GetLogger(
MethodBase.GetCurrentMethod().DeclaringType);
private List<GridRegion> m_RegionsOnSim = new List<GridRegion>();
private IHyperlinkService m_HyperlinkService;
public HypergridServiceInConnector(IConfigSource config, IHttpServer server, IHyperlinkService hyperService) :
base(config, server, String.Empty)
{
m_HyperlinkService = hyperService;
server.AddXmlRPCHandler("link_region", LinkRegionRequest, false);
server.AddXmlRPCHandler("expect_hg_user", ExpectHGUser, false);
}
public void AddRegion(GridRegion rinfo)
{
m_RegionsOnSim.Add(rinfo);
}
public void RemoveRegion(GridRegion rinfo)
{
if (m_RegionsOnSim.Contains(rinfo))
m_RegionsOnSim.Remove(rinfo);
}
/// <summary>
/// Someone wants to link to us
/// </summary>
/// <param name="request"></param>
/// <returns></returns>
public XmlRpcResponse LinkRegionRequest(XmlRpcRequest request, IPEndPoint remoteClient)
{
Hashtable requestData = (Hashtable)request.Params[0];
//string host = (string)requestData["host"];
//string portstr = (string)requestData["port"];
string name = (string)requestData["region_name"];
m_log.DebugFormat("[HGrid]: Hyperlink request");
GridRegion regInfo = null;
foreach (GridRegion r in m_RegionsOnSim)
{
if ((r.RegionName != null) && (name != null) && (r.RegionName.ToLower() == name.ToLower()))
{
regInfo = r;
break;
}
}
if (regInfo == null)
regInfo = m_RegionsOnSim[0]; // Send out the first region
Hashtable hash = new Hashtable();
hash["uuid"] = regInfo.RegionID.ToString();
m_log.Debug(">> Here " + regInfo.RegionID);
hash["handle"] = regInfo.RegionHandle.ToString();
hash["region_image"] = regInfo.TerrainImage.ToString();
hash["region_name"] = regInfo.RegionName;
hash["internal_port"] = regInfo.InternalEndPoint.Port.ToString();
//m_log.Debug(">> Here: " + regInfo.InternalEndPoint.Port);
XmlRpcResponse response = new XmlRpcResponse();
response.Value = hash;
return response;
}
/// <summary>
/// Received from other HGrid nodes when a user wants to teleport here. This call allows
/// the region to prepare for direct communication from the client. Sends back an empty
/// xmlrpc response on completion.
/// This is somewhat similar to OGS1's ExpectUser, but with the additional task of
/// registering the user in the local user cache.
/// </summary>
/// <param name="request"></param>
/// <returns></returns>
public XmlRpcResponse ExpectHGUser(XmlRpcRequest request, IPEndPoint remoteClient)
{
Hashtable requestData = (Hashtable)request.Params[0];
ForeignUserProfileData userData = new ForeignUserProfileData();
userData.FirstName = (string)requestData["firstname"];
userData.SurName = (string)requestData["lastname"];
userData.ID = new UUID((string)requestData["agent_id"]);
UUID sessionID = new UUID((string)requestData["session_id"]);
userData.HomeLocation = new Vector3((float)Convert.ToDecimal((string)requestData["startpos_x"]),
(float)Convert.ToDecimal((string)requestData["startpos_y"]),
(float)Convert.ToDecimal((string)requestData["startpos_z"]));
userData.UserServerURI = (string)requestData["userserver_id"];
userData.UserAssetURI = (string)requestData["assetserver_id"];
userData.UserInventoryURI = (string)requestData["inventoryserver_id"];
m_log.DebugFormat("[HGrid]: Prepare for connection from {0} {1} (@{2}) UUID={3}",
userData.FirstName, userData.SurName, userData.UserServerURI, userData.ID);
ulong userRegionHandle = 0;
int userhomeinternalport = 0;
if (requestData.ContainsKey("region_uuid"))
{
UUID uuid = UUID.Zero;
UUID.TryParse((string)requestData["region_uuid"], out uuid);
userData.HomeRegionID = uuid;
userRegionHandle = Convert.ToUInt64((string)requestData["regionhandle"]);
userData.UserHomeAddress = (string)requestData["home_address"];
userData.UserHomePort = (string)requestData["home_port"];
userhomeinternalport = Convert.ToInt32((string)requestData["internal_port"]);
m_log.Debug("[HGrid]: home_address: " + userData.UserHomeAddress +
"; home_port: " + userData.UserHomePort);
}
else
m_log.WarnFormat("[HGrid]: User has no home region information");
XmlRpcResponse resp = new XmlRpcResponse();
// Let's check if someone is trying to get in with a stolen local identity.
// The need for this test is a consequence of not having truly global names :-/
bool comingHome = false;
if (m_HyperlinkService.CheckUserAtEntry(userData.ID, sessionID, out comingHome) == false)
{
m_log.WarnFormat("[HGrid]: Access denied to foreign user.");
Hashtable respdata = new Hashtable();
respdata["success"] = "FALSE";
respdata["reason"] = "Foreign user has the same ID as a local user, or logins disabled.";
resp.Value = respdata;
return resp;
}
// Finally, everything looks ok
//m_log.Debug("XXX---- EVERYTHING OK ---XXX");
if (!comingHome)
{
// We don't do this if the user is coming to the home grid
GridRegion home = new GridRegion();
home.RegionID = userData.HomeRegionID;
home.ExternalHostName = userData.UserHomeAddress;
home.HttpPort = Convert.ToUInt32(userData.UserHomePort);
uint x = 0, y = 0;
Utils.LongToUInts(userRegionHandle, out x, out y);
home.RegionLocX = (int)x;
home.RegionLocY = (int)y;
home.InternalEndPoint = new IPEndPoint(IPAddress.Parse("0.0.0.0"), (int)userhomeinternalport);
m_HyperlinkService.AcceptUser(userData, home);
}
// else the user is coming to a non-home region of the home grid
// We simply drop this user information altogether
Hashtable respdata2 = new Hashtable();
respdata2["success"] = "TRUE";
resp.Value = respdata2;
return resp;
}
}
}