244 lines
10 KiB
C#
244 lines
10 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 OpenSim.Framework;
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using OpenSim.Services.Connectors.Hypergrid;
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using OpenSim.Services.Interfaces;
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using GridRegion = OpenSim.Services.Interfaces.GridRegion;
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using OpenSim.Server.Base;
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using OpenMetaverse;
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using log4net;
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using Nini.Config;
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namespace OpenSim.Services.HypergridService
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{
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/// <summary>
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/// This service is for HG1.5 only, to make up for the fact that clients don't
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/// keep any private information in themselves, and that their 'home service'
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/// needs to do it for them.
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/// Once we have better clients, this shouldn't be needed.
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/// </summary>
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public class UserAgentService : IUserAgentService
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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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// This will need to go into a DB table
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static Dictionary<UUID, TravelingAgentInfo> m_TravelingAgents = new Dictionary<UUID, TravelingAgentInfo>();
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static bool m_Initialized = false;
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protected static IGridUserService m_GridUserService;
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protected static IGridService m_GridService;
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protected static GatekeeperServiceConnector m_GatekeeperConnector;
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public UserAgentService(IConfigSource config)
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{
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if (!m_Initialized)
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{
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m_log.DebugFormat("[HOME USERS SECURITY]: Starting...");
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IConfig serverConfig = config.Configs["UserAgentService"];
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if (serverConfig == null)
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throw new Exception(String.Format("No section UserAgentService in config file"));
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string gridService = serverConfig.GetString("GridService", String.Empty);
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string gridUserService = serverConfig.GetString("GridUserService", String.Empty);
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if (gridService == string.Empty || gridUserService == string.Empty)
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throw new Exception(String.Format("Incomplete specifications, UserAgent Service cannot function."));
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Object[] args = new Object[] { config };
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m_GridService = ServerUtils.LoadPlugin<IGridService>(gridService, args);
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m_GridUserService = ServerUtils.LoadPlugin<IGridUserService>(gridUserService, args);
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m_GatekeeperConnector = new GatekeeperServiceConnector();
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m_Initialized = true;
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}
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}
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public GridRegion GetHomeRegion(UUID userID, out Vector3 position, out Vector3 lookAt)
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{
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position = new Vector3(128, 128, 0); lookAt = Vector3.UnitY;
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m_log.DebugFormat("[USER AGENT SERVICE]: Request to get home region of user {0}", userID);
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GridRegion home = null;
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GridUserInfo uinfo = m_GridUserService.GetGridUserInfo(userID.ToString());
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if (uinfo != null)
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{
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if (uinfo.HomeRegionID != UUID.Zero)
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{
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home = m_GridService.GetRegionByUUID(UUID.Zero, uinfo.HomeRegionID);
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position = uinfo.HomePosition;
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lookAt = uinfo.HomeLookAt;
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}
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if (home == null)
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{
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List<GridRegion> defs = m_GridService.GetDefaultRegions(UUID.Zero);
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if (defs != null && defs.Count > 0)
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home = defs[0];
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}
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}
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return home;
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}
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public bool LoginAgentToGrid(AgentCircuitData agentCircuit, GridRegion gatekeeper, GridRegion finalDestination, out string reason)
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{
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m_log.DebugFormat("[USER AGENT SERVICE]: Request to login user {0} {1} to grid {2}",
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agentCircuit.firstname, agentCircuit.lastname, gatekeeper.ExternalHostName +":"+ gatekeeper.HttpPort);
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// Take the IP address + port of the gatekeeper (reg) plus the info of finalDestination
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GridRegion region = new GridRegion(gatekeeper);
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region.RegionName = finalDestination.RegionName;
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region.RegionID = finalDestination.RegionID;
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region.RegionLocX = finalDestination.RegionLocX;
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region.RegionLocY = finalDestination.RegionLocY;
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// Generate a new service session
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agentCircuit.ServiceSessionID = "http://" + region.ExternalHostName + ":" + region.HttpPort + ";" + UUID.Random();
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TravelingAgentInfo old = UpdateTravelInfo(agentCircuit, region);
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bool success = m_GatekeeperConnector.CreateAgent(region, agentCircuit, (uint)Constants.TeleportFlags.ViaLogin, out reason);
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if (!success)
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{
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m_log.DebugFormat("[USER AGENT SERVICE]: Unable to login user {0} {1} to grid {2}, reason: {3}",
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agentCircuit.firstname, agentCircuit.lastname, region.ExternalHostName + ":" + region.HttpPort, reason);
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// restore the old travel info
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lock (m_TravelingAgents)
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m_TravelingAgents[agentCircuit.SessionID] = old;
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return false;
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}
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return true;
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}
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TravelingAgentInfo UpdateTravelInfo(AgentCircuitData agentCircuit, GridRegion region)
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{
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TravelingAgentInfo travel = new TravelingAgentInfo();
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TravelingAgentInfo old = null;
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lock (m_TravelingAgents)
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{
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if (m_TravelingAgents.ContainsKey(agentCircuit.SessionID))
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{
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old = m_TravelingAgents[agentCircuit.SessionID];
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}
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m_TravelingAgents[agentCircuit.SessionID] = travel;
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}
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travel.UserID = agentCircuit.AgentID;
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travel.GridExternalName = region.ExternalHostName + ":" + region.HttpPort;
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travel.ServiceToken = agentCircuit.ServiceSessionID;
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if (old != null)
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travel.ClientToken = old.ClientToken;
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return old;
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}
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public void LogoutAgent(UUID userID, UUID sessionID)
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{
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m_log.DebugFormat("[USER AGENT SERVICE]: User {0} logged out", userID);
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lock (m_TravelingAgents)
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{
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List<UUID> travels = new List<UUID>();
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foreach (KeyValuePair<UUID, TravelingAgentInfo> kvp in m_TravelingAgents)
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if (kvp.Value == null) // do some clean up
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travels.Add(kvp.Key);
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else if (kvp.Value.UserID == userID)
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travels.Add(kvp.Key);
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foreach (UUID session in travels)
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m_TravelingAgents.Remove(session);
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}
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}
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// We need to prevent foreign users with the same UUID as a local user
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public bool AgentIsComingHome(UUID sessionID, string thisGridExternalName)
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{
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if (!m_TravelingAgents.ContainsKey(sessionID))
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return false;
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TravelingAgentInfo travel = m_TravelingAgents[sessionID];
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return travel.GridExternalName == thisGridExternalName;
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}
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public bool VerifyClient(UUID sessionID, string token)
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{
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return true;
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// Commenting this for now until I understand better what part of a sender's
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// info stays unchanged throughout a session
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//
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//if (m_TravelingAgents.ContainsKey(sessionID))
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//{
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// // Aquiles heel. Must trust the first grid upon login
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// if (m_TravelingAgents[sessionID].ClientToken == string.Empty)
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// {
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// m_TravelingAgents[sessionID].ClientToken = token;
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// return true;
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// }
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// return m_TravelingAgents[sessionID].ClientToken == token;
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//}
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//return false;
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}
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public bool VerifyAgent(UUID sessionID, string token)
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{
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if (m_TravelingAgents.ContainsKey(sessionID))
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{
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m_log.DebugFormat("[USER AGENT SERVICE]: Verifying agent token {0} against {1}", token, m_TravelingAgents[sessionID].ServiceToken);
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return m_TravelingAgents[sessionID].ServiceToken == token;
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}
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m_log.DebugFormat("[USER AGENT SERVICE]: Token verification for session {0}: no such session", sessionID);
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return false;
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}
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}
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class TravelingAgentInfo
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{
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public UUID UserID;
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public string GridExternalName = string.Empty;
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public string ServiceToken = string.Empty;
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public string ClientToken = string.Empty;
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}
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}
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