476 lines
18 KiB
C#
476 lines
18 KiB
C#
using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Net;
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using System.Runtime.Remoting;
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using System.Runtime.Remoting.Channels;
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using System.Runtime.Remoting.Channels.Tcp;
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using libsecondlife;
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using Nwc.XmlRpc;
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using OpenSim.Framework;
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using OpenSim.Framework.Communications;
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using OpenSim.Framework.Console;
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using OpenSim.Framework.Servers;
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using OpenSim.Framework.Types;
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namespace OpenSim.Region.Communications.OGS1
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{
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public class OGS1GridServices : IGridServices, IInterRegionCommunications
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{
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public Dictionary<ulong, RegionCommsListener> listeners = new Dictionary<ulong, RegionCommsListener>();
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protected Dictionary<ulong, RegionInfo> regions = new Dictionary<ulong, RegionInfo>();
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public BaseHttpServer httpListener;
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public NetworkServersInfo serversInfo;
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public BaseHttpServer httpServer;
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/// <summary>
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///
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/// </summary>
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/// <param name="servers_info"></param>
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/// <param name="httpServe"></param>
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public OGS1GridServices(NetworkServersInfo servers_info, BaseHttpServer httpServe)
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{
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serversInfo = servers_info;
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httpServer = httpServe;
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httpServer.AddXmlRPCHandler("expect_user", this.ExpectUser);
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httpServer.AddXmlRPCHandler("check", this.PingCheckReply);
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this.StartRemoting();
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="regionInfo"></param>
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/// <returns></returns>
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public RegionCommsListener RegisterRegion(RegionInfo regionInfo)
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{
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if (!this.regions.ContainsKey((uint)regionInfo.RegionHandle))
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{
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this.regions.Add(regionInfo.RegionHandle, regionInfo);
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}
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Hashtable GridParams = new Hashtable();
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// Login / Authentication
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GridParams["authkey"] = serversInfo.GridSendKey;
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GridParams["UUID"] = regionInfo.SimUUID.ToStringHyphenated();
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GridParams["sim_ip"] = regionInfo.ExternalHostName;
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GridParams["sim_port"] = regionInfo.InternalEndPoint.Port.ToString();
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GridParams["region_locx"] = regionInfo.RegionLocX.ToString();
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GridParams["region_locy"] = regionInfo.RegionLocY.ToString();
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GridParams["sim_name"] = regionInfo.RegionName;
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GridParams["http_port"] = serversInfo.HttpListenerPort.ToString();
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GridParams["remoting_port"] = serversInfo.RemotingListenerPort.ToString();
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GridParams["map-image-id"] = regionInfo.estateSettings.terrainImageID.ToStringHyphenated();
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// Package into an XMLRPC Request
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ArrayList SendParams = new ArrayList();
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SendParams.Add(GridParams);
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// Send Request
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XmlRpcRequest GridReq = new XmlRpcRequest("simulator_login", SendParams);
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XmlRpcResponse GridResp = GridReq.Send(serversInfo.GridURL, 3000);
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Hashtable GridRespData = (Hashtable)GridResp.Value;
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Hashtable griddatahash = GridRespData;
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// Process Response
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if (GridRespData.ContainsKey("error"))
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{
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string errorstring = (string)GridRespData["error"];
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MainLog.Instance.Error("Unable to connect to grid: " + errorstring);
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return null;
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}
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// Initialise the background listeners
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RegionCommsListener regListener = new RegionCommsListener();
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if (!this.listeners.ContainsKey(regionInfo.RegionHandle))
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{
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this.listeners.Add(regionInfo.RegionHandle, regListener);
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}
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else
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{
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listeners[regionInfo.RegionHandle] = regListener;
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}
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return regListener;
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="regionInfo"></param>
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/// <returns></returns>
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public List<RegionInfo> RequestNeighbours(RegionInfo regionInfo)
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{
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Hashtable respData = MapBlockQuery((int)regionInfo.RegionLocX - 1, (int)regionInfo.RegionLocY - 1, (int)regionInfo.RegionLocX + 1, (int)regionInfo.RegionLocY + 1);
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List<RegionInfo> neighbours = new List<RegionInfo>();
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foreach (ArrayList a in respData.Values)
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{
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foreach (Hashtable n in a)
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{
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uint regX = Convert.ToUInt32(n["x"]);
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uint regY = Convert.ToUInt32(n["y"]);
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if ((regionInfo.RegionLocX != regX) || (regionInfo.RegionLocY != regY))
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{
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string externalIpStr = OpenSim.Framework.Utilities.Util.GetHostFromDNS((string)n["sim_ip"]).ToString();
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uint port = Convert.ToUInt32(n["sim_port"]);
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string externalUri = (string)n["sim_uri"];
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IPEndPoint neighbourInternalEndPoint = new IPEndPoint(IPAddress.Parse(externalIpStr), (int)port);
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string neighbourExternalUri = externalUri;
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RegionInfo neighbour = new RegionInfo(regX, regY, neighbourInternalEndPoint, externalIpStr);
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//OGS1
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//neighbour.RegionHandle = (ulong)n["regionhandle"]; is now calculated locally
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neighbour.RegionName = (string)n["name"];
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//OGS1+
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neighbour.SimUUID = (string)n["uuid"];
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neighbours.Add(neighbour);
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}
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}
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}
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return neighbours;
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="regionHandle"></param>
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/// <returns></returns>
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public RegionInfo RequestNeighbourInfo(ulong regionHandle)
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{
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if (this.regions.ContainsKey(regionHandle))
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{
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return this.regions[regionHandle];
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}
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//TODO not a region in this instance so ask remote grid server
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Hashtable requestData = new Hashtable();
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requestData["region_handle"] = regionHandle.ToString();
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requestData["authkey"] = this.serversInfo.GridSendKey;
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ArrayList SendParams = new ArrayList();
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SendParams.Add(requestData);
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XmlRpcRequest GridReq = new XmlRpcRequest("simulator_data_request", SendParams);
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XmlRpcResponse GridResp = GridReq.Send(this.serversInfo.GridURL, 3000);
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Hashtable responseData = (Hashtable)GridResp.Value;
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if (responseData.ContainsKey("error"))
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{
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Console.WriteLine("error received from grid server" + responseData["error"]);
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return null;
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}
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uint regX = Convert.ToUInt32((string)responseData["region_locx"]);
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uint regY = Convert.ToUInt32((string)responseData["region_locy"]);
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string internalIpStr = (string)responseData["sim_ip"];
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uint port = Convert.ToUInt32(responseData["sim_port"]);
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string externalUri = (string)responseData["sim_uri"];
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IPEndPoint neighbourInternalEndPoint = new IPEndPoint(IPAddress.Parse(internalIpStr), (int)port);
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string neighbourExternalUri = externalUri;
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RegionInfo regionInfo = new RegionInfo(regX, regY, neighbourInternalEndPoint, internalIpStr);
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regionInfo.RemotingPort = Convert.ToUInt32((string)responseData["remoting_port"]);
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regionInfo.RemotingAddress = internalIpStr;
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regionInfo.SimUUID = new LLUUID((string)responseData["region_UUID"]);
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regionInfo.RegionName = (string)responseData["region_name"];
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return regionInfo;
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="minX"></param>
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/// <param name="minY"></param>
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/// <param name="maxX"></param>
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/// <param name="maxY"></param>
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/// <returns></returns>
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public List<MapBlockData> RequestNeighbourMapBlocks(int minX, int minY, int maxX, int maxY)
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{
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Hashtable respData = MapBlockQuery(minX, minY, maxX, maxY);
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List<MapBlockData> neighbours = new List<MapBlockData>();
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foreach (ArrayList a in respData.Values)
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{
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foreach (Hashtable n in a)
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{
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MapBlockData neighbour = new MapBlockData();
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neighbour.X = Convert.ToUInt16(n["x"]);
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neighbour.Y = Convert.ToUInt16(n["y"]);
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neighbour.Name = (string)n["name"];
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neighbour.Access = Convert.ToByte(n["access"]);
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neighbour.RegionFlags = Convert.ToUInt32(n["region-flags"]);
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neighbour.WaterHeight = Convert.ToByte(n["water-height"]);
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neighbour.MapImageId = new LLUUID((string)n["map-image-id"]);
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neighbours.Add(neighbour);
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}
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}
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return neighbours;
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}
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/// <summary>
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/// Performs a XML-RPC query against the grid server returning mapblock information in the specified coordinates
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/// </summary>
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/// <remarks>REDUNDANT - OGS1 is to be phased out in favour of OGS2</remarks>
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/// <param name="minX">Minimum X value</param>
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/// <param name="minY">Minimum Y value</param>
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/// <param name="maxX">Maximum X value</param>
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/// <param name="maxY">Maximum Y value</param>
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/// <returns>Hashtable of hashtables containing map data elements</returns>
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private Hashtable MapBlockQuery(int minX, int minY, int maxX, int maxY)
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{
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Hashtable param = new Hashtable();
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param["xmin"] = minX;
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param["ymin"] = minY;
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param["xmax"] = maxX;
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param["ymax"] = maxY;
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IList parameters = new ArrayList();
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parameters.Add(param);
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XmlRpcRequest req = new XmlRpcRequest("map_block", parameters);
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XmlRpcResponse resp = req.Send(serversInfo.GridURL, 3000);
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Hashtable respData = (Hashtable)resp.Value;
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return respData;
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}
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/// <summary>
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/// A ping / version check
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/// </summary>
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/// <param name="request"></param>
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/// <returns></returns>
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public XmlRpcResponse PingCheckReply(XmlRpcRequest request)
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{
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XmlRpcResponse response = new XmlRpcResponse();
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Hashtable respData = new Hashtable();
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respData["online"] = "true";
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response.Value = respData;
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return response;
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}
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// Grid Request Processing
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/// <summary>
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///
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/// </summary>
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/// <param name="request"></param>
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/// <returns></returns>
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public XmlRpcResponse ExpectUser(XmlRpcRequest request)
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{
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Console.WriteLine("Expecting User...");
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Hashtable requestData = (Hashtable)request.Params[0];
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AgentCircuitData agentData = new AgentCircuitData();
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agentData.SessionID = new LLUUID((string)requestData["session_id"]);
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agentData.SecureSessionID = new LLUUID((string)requestData["secure_session_id"]);
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agentData.firstname = (string)requestData["firstname"];
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agentData.lastname = (string)requestData["lastname"];
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agentData.AgentID = new LLUUID((string)requestData["agent_id"]);
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agentData.circuitcode = Convert.ToUInt32(requestData["circuit_code"]);
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agentData.CapsPath = (string)requestData["caps_path"];
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if (requestData.ContainsKey("child_agent") && requestData["child_agent"].Equals("1"))
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{
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agentData.child = true;
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}
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else
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{
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agentData.startpos = new LLVector3(Convert.ToUInt32(requestData["startpos_x"]), Convert.ToUInt32(requestData["startpos_y"]), Convert.ToUInt32(requestData["startpos_z"]));
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agentData.child = false;
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}
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if (listeners.ContainsKey(Convert.ToUInt64((string)requestData["regionhandle"])))
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{
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this.listeners[Convert.ToUInt64((string)requestData["regionhandle"])].TriggerExpectUser(Convert.ToUInt64((string)requestData["regionhandle"]), agentData);
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}
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else
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{
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MainLog.Instance.Error("ExpectUser() - Unknown region " + ((ulong)requestData["regionhandle"]).ToString());
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}
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MainLog.Instance.Verbose("ExpectUser() - Welcoming new user...");
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return new XmlRpcResponse();
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}
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#region InterRegion Comms
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/// <summary>
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///
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/// </summary>
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private void StartRemoting()
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{
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TcpChannel ch = new TcpChannel(this.serversInfo.RemotingListenerPort);
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ChannelServices.RegisterChannel(ch, true);
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WellKnownServiceTypeEntry wellType = new WellKnownServiceTypeEntry(typeof(OGS1InterRegionRemoting), "InterRegions", WellKnownObjectMode.Singleton);
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RemotingConfiguration.RegisterWellKnownServiceType(wellType);
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InterRegionSingleton.Instance.OnArrival += this.IncomingArrival;
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InterRegionSingleton.Instance.OnChildAgent += this.IncomingChildAgent;
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}
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#region Methods called by regions in this instance
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/// <summary>
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///
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/// </summary>
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/// <param name="regionHandle"></param>
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/// <param name="agentData"></param>
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/// <returns></returns>
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public bool InformRegionOfChildAgent(ulong regionHandle, AgentCircuitData agentData)
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{
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try
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{
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if (this.listeners.ContainsKey(regionHandle))
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{
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this.listeners[regionHandle].TriggerExpectUser(regionHandle, agentData);
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return true;
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}
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RegionInfo regInfo = this.RequestNeighbourInfo(regionHandle);
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if (regInfo != null)
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{
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//don't want to be creating a new link to the remote instance every time like we are here
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bool retValue = false;
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OGS1InterRegionRemoting remObject = (OGS1InterRegionRemoting)Activator.GetObject(
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typeof(OGS1InterRegionRemoting),
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"tcp://" + regInfo.RemotingAddress + ":" + regInfo.RemotingPort + "/InterRegions");
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if (remObject != null)
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{
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retValue = remObject.InformRegionOfChildAgent(regionHandle, agentData);
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}
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else
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{
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Console.WriteLine("remoting object not found");
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}
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remObject = null;
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return retValue;
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}
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return false;
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}
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catch (System.Runtime.Remoting.RemotingException e)
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{
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MainLog.Instance.Error("Remoting Error: Unable to connect to remote region.\n" + e.ToString());
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return false;
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}
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="regionHandle"></param>
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/// <param name="agentID"></param>
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/// <param name="position"></param>
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/// <returns></returns>
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public bool ExpectAvatarCrossing(ulong regionHandle, LLUUID agentID, LLVector3 position)
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{
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try
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{
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if (this.listeners.ContainsKey(regionHandle))
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{
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this.listeners[regionHandle].TriggerExpectAvatarCrossing(regionHandle, agentID, position);
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return true;
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}
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RegionInfo regInfo = this.RequestNeighbourInfo(regionHandle);
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if (regInfo != null)
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{
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bool retValue = false;
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OGS1InterRegionRemoting remObject = (OGS1InterRegionRemoting)Activator.GetObject(
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typeof(OGS1InterRegionRemoting),
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"tcp://" + regInfo.RemotingAddress + ":" + regInfo.RemotingPort + "/InterRegions");
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if (remObject != null)
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{
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retValue = remObject.ExpectAvatarCrossing(regionHandle, agentID, position);
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}
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else
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{
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Console.WriteLine("remoting object not found");
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}
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remObject = null;
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return retValue;
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}
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//TODO need to see if we know about where this region is and use .net remoting
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// to inform it.
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return false;
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}
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catch (System.Runtime.Remoting.RemotingException e)
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{
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MainLog.Instance.Error("Remoting Error: Unable to connect to remote region.\n" + e.ToString());
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return false;
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}
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}
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#endregion
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#region Methods triggered by calls from external instances
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/// <summary>
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///
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/// </summary>
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/// <param name="regionHandle"></param>
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/// <param name="agentData"></param>
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/// <returns></returns>
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public bool IncomingChildAgent(ulong regionHandle, AgentCircuitData agentData)
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{
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try
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{
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if (this.listeners.ContainsKey(regionHandle))
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{
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this.listeners[regionHandle].TriggerExpectUser(regionHandle, agentData);
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return true;
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}
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}
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catch (System.Runtime.Remoting.RemotingException e)
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{
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MainLog.Instance.Error("Remoting Error: Unable to connect to remote region.\n" + e.ToString());
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}
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return false;
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="regionHandle"></param>
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/// <param name="agentID"></param>
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/// <param name="position"></param>
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/// <returns></returns>
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public bool IncomingArrival(ulong regionHandle, LLUUID agentID, LLVector3 position)
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{
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try
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{
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if (this.listeners.ContainsKey(regionHandle))
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{
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this.listeners[regionHandle].TriggerExpectAvatarCrossing(regionHandle, agentID, position);
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return true;
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}
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}
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catch (System.Runtime.Remoting.RemotingException e)
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{
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MainLog.Instance.Error("Remoting Error: Unable to connect to remote region.\n" + e.ToString());
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}
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return false;
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}
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#endregion
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#endregion
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}
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}
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