clockwerk-opensim-stable – Rev 1
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/*
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*
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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
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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
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*/
using System;
using System.Collections.Generic;
using System.Net;
using System.Reflection;
using OpenSim.Data;
using OpenSim.Framework;
using OpenSim.Services.Connectors.Friends;
using OpenSim.Services.Connectors.Hypergrid;
using OpenSim.Services.Interfaces;
using GridRegion = OpenSim.Services.Interfaces.GridRegion;
using OpenSim.Server.Base;
using FriendInfo = OpenSim.Services.Interfaces.FriendInfo;
using OpenMetaverse;
using log4net;
using Nini.Config;
namespace OpenSim.Services.HypergridService
{
/// <summary>
/// This service is for HG1.5 only, to make up for the fact that clients don't
/// keep any private information in themselves, and that their 'home service'
/// needs to do it for them.
/// Once we have better clients, this shouldn't be needed.
/// </summary>
public class UserAgentService : UserAgentServiceBase, IUserAgentService
{
private static readonly ILog m_log =
LogManager.GetLogger(
MethodBase.GetCurrentMethod().DeclaringType);
// This will need to go into a DB table
//static Dictionary<UUID, TravelingAgentInfo> m_Database = new Dictionary<UUID, TravelingAgentInfo>();
static bool m_Initialized = false;
protected static IGridUserService m_GridUserService;
protected static IGridService m_GridService;
protected static GatekeeperServiceConnector m_GatekeeperConnector;
protected static IGatekeeperService m_GatekeeperService;
protected static IFriendsService m_FriendsService;
protected static IPresenceService m_PresenceService;
protected static IUserAccountService m_UserAccountService;
protected static IFriendsSimConnector m_FriendsLocalSimConnector; // standalone, points to HGFriendsModule
protected static FriendsSimConnector m_FriendsSimConnector; // grid
protected static string m_GridName;
protected static int m_LevelOutsideContacts;
protected static bool m_BypassClientVerification;
private static Dictionary<int, bool> m_ForeignTripsAllowed = new Dictionary<int, bool>();
private static Dictionary<int, List<string>> m_TripsAllowedExceptions = new Dictionary<int, List<string>>();
private static Dictionary<int, List<string>> m_TripsDisallowedExceptions = new Dictionary<int, List<string>>();
public UserAgentService(IConfigSource config) : this(config, null)
{
}
public UserAgentService(IConfigSource config, IFriendsSimConnector friendsConnector)
: base(config)
{
// Let's set this always, because we don't know the sequence
// of instantiations
if (friendsConnector != null)
m_FriendsLocalSimConnector = friendsConnector;
if (!m_Initialized)
{
m_Initialized = true;
m_log.DebugFormat("[HOME USERS SECURITY]: Starting...");
m_FriendsSimConnector = new FriendsSimConnector();
IConfig serverConfig = config.Configs["UserAgentService"];
if (serverConfig == null)
throw new Exception(String.Format("No section UserAgentService in config file"));
string gridService = serverConfig.GetString("GridService", String.Empty);
string gridUserService = serverConfig.GetString("GridUserService", String.Empty);
string gatekeeperService = serverConfig.GetString("GatekeeperService", String.Empty);
string friendsService = serverConfig.GetString("FriendsService", String.Empty);
string presenceService = serverConfig.GetString("PresenceService", String.Empty);
string userAccountService = serverConfig.GetString("UserAccountService", String.Empty);
m_BypassClientVerification = serverConfig.GetBoolean("BypassClientVerification", false);
if (gridService == string.Empty || gridUserService == string.Empty || gatekeeperService == string.Empty)
throw new Exception(String.Format("Incomplete specifications, UserAgent Service cannot function."));
Object[] args = new Object[] { config };
m_GridService = ServerUtils.LoadPlugin<IGridService>(gridService, args);
m_GridUserService = ServerUtils.LoadPlugin<IGridUserService>(gridUserService, args);
m_GatekeeperConnector = new GatekeeperServiceConnector();
m_GatekeeperService = ServerUtils.LoadPlugin<IGatekeeperService>(gatekeeperService, args);
m_FriendsService = ServerUtils.LoadPlugin<IFriendsService>(friendsService, args);
m_PresenceService = ServerUtils.LoadPlugin<IPresenceService>(presenceService, args);
m_UserAccountService = ServerUtils.LoadPlugin<IUserAccountService>(userAccountService, args);
m_LevelOutsideContacts = serverConfig.GetInt("LevelOutsideContacts", 0);
LoadTripPermissionsFromConfig(serverConfig, "ForeignTripsAllowed");
LoadDomainExceptionsFromConfig(serverConfig, "AllowExcept", m_TripsAllowedExceptions);
LoadDomainExceptionsFromConfig(serverConfig, "DisallowExcept", m_TripsDisallowedExceptions);
m_GridName = Util.GetConfigVarFromSections<string>(config, "GatekeeperURI",
new string[] { "Startup", "Hypergrid", "UserAgentService" }, String.Empty);
if (string.IsNullOrEmpty(m_GridName)) // Legacy. Remove soon.
{
m_GridName = serverConfig.GetString("ExternalName", string.Empty);
if (m_GridName == string.Empty)
{
serverConfig = config.Configs["GatekeeperService"];
m_GridName = serverConfig.GetString("ExternalName", string.Empty);
}
}
if (!m_GridName.EndsWith("/"))
m_GridName = m_GridName + "/";
// Finally some cleanup
m_Database.DeleteOld();
}
}
protected void LoadTripPermissionsFromConfig(IConfig config, string variable)
{
foreach (string keyName in config.GetKeys())
{
if (keyName.StartsWith(variable + "_Level_"))
{
int level = 0;
if (Int32.TryParse(keyName.Replace(variable + "_Level_", ""), out level))
m_ForeignTripsAllowed.Add(level, config.GetBoolean(keyName, true));
}
}
}
protected void LoadDomainExceptionsFromConfig(IConfig config, string variable, Dictionary<int, List<string>> exceptions)
{
foreach (string keyName in config.GetKeys())
{
if (keyName.StartsWith(variable + "_Level_"))
{
int level = 0;
if (Int32.TryParse(keyName.Replace(variable + "_Level_", ""), out level) && !exceptions.ContainsKey(level))
{
exceptions.Add(level, new List<string>());
string value = config.GetString(keyName, string.Empty);
string[] parts = value.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
foreach (string s in parts)
exceptions[level].Add(s.Trim());
}
}
}
}
public GridRegion GetHomeRegion(UUID userID, out Vector3 position, out Vector3 lookAt)
{
position = new Vector3(128, 128, 0); lookAt = Vector3.UnitY;
m_log.DebugFormat("[USER AGENT SERVICE]: Request to get home region of user {0}", userID);
GridRegion home = null;
GridUserInfo uinfo = m_GridUserService.GetGridUserInfo(userID.ToString());
if (uinfo != null)
{
if (uinfo.HomeRegionID != UUID.Zero)
{
home = m_GridService.GetRegionByUUID(UUID.Zero, uinfo.HomeRegionID);
position = uinfo.HomePosition;
lookAt = uinfo.HomeLookAt;
}
if (home == null)
{
List<GridRegion> defs = m_GridService.GetDefaultRegions(UUID.Zero);
if (defs != null && defs.Count > 0)
home = defs[0];
}
}
return home;
}
public bool LoginAgentToGrid(AgentCircuitData agentCircuit, GridRegion gatekeeper, GridRegion finalDestination, bool fromLogin, out string reason)
{
m_log.DebugFormat("[USER AGENT SERVICE]: Request to login user {0} {1} (@{2}) to grid {3}",
agentCircuit.firstname, agentCircuit.lastname, (fromLogin ? agentCircuit.IPAddress : "stored IP"), gatekeeper.ServerURI);
string gridName = gatekeeper.ServerURI;
UserAccount account = m_UserAccountService.GetUserAccount(UUID.Zero, agentCircuit.AgentID);
if (account == null)
{
m_log.WarnFormat("[USER AGENT SERVICE]: Someone attempted to lauch a foreign user from here {0} {1}", agentCircuit.firstname, agentCircuit.lastname);
reason = "Forbidden to launch your agents from here";
return false;
}
// Is this user allowed to go there?
if (m_GridName != gridName)
{
if (m_ForeignTripsAllowed.ContainsKey(account.UserLevel))
{
bool allowed = m_ForeignTripsAllowed[account.UserLevel];
if (m_ForeignTripsAllowed[account.UserLevel] && IsException(gridName, account.UserLevel, m_TripsAllowedExceptions))
allowed = false;
if (!m_ForeignTripsAllowed[account.UserLevel] && IsException(gridName, account.UserLevel, m_TripsDisallowedExceptions))
allowed = true;
if (!allowed)
{
reason = "Your world does not allow you to visit the destination";
m_log.InfoFormat("[USER AGENT SERVICE]: Agents not permitted to visit {0}. Refusing service.", gridName);
return false;
}
}
}
// Take the IP address + port of the gatekeeper (reg) plus the info of finalDestination
GridRegion region = new GridRegion(gatekeeper);
region.ServerURI = gatekeeper.ServerURI;
region.ExternalHostName = finalDestination.ExternalHostName;
region.InternalEndPoint = finalDestination.InternalEndPoint;
region.RegionName = finalDestination.RegionName;
region.RegionID = finalDestination.RegionID;
region.RegionLocX = finalDestination.RegionLocX;
region.RegionLocY = finalDestination.RegionLocY;
// Generate a new service session
agentCircuit.ServiceSessionID = region.ServerURI + ";" + UUID.Random();
TravelingAgentInfo old = null;
TravelingAgentInfo travel = CreateTravelInfo(agentCircuit, region, fromLogin, out old);
bool success = false;
string myExternalIP = string.Empty;
m_log.DebugFormat("[USER AGENT SERVICE]: this grid: {0}, desired grid: {1}, desired region: {2}", m_GridName, gridName, region.RegionID);
if (m_GridName == gridName)
success = m_GatekeeperService.LoginAgent(agentCircuit, finalDestination, out reason);
else
{
success = m_GatekeeperConnector.CreateAgent(region, agentCircuit, (uint)Constants.TeleportFlags.ViaLogin, out myExternalIP, out reason);
if (success)
// Report them as nowhere
m_PresenceService.ReportAgent(agentCircuit.SessionID, UUID.Zero);
}
if (!success)
{
m_log.DebugFormat("[USER AGENT SERVICE]: Unable to login user {0} {1} to grid {2}, reason: {3}",
agentCircuit.firstname, agentCircuit.lastname, region.ServerURI, reason);
if (old != null)
StoreTravelInfo(old);
else
m_Database.Delete(agentCircuit.SessionID);
return false;
}
// Everything is ok
// Update the perceived IP Address of our grid
m_log.DebugFormat("[USER AGENT SERVICE]: Gatekeeper sees me as {0}", myExternalIP);
travel.MyIpAddress = myExternalIP;
StoreTravelInfo(travel);
return true;
}
public bool LoginAgentToGrid(AgentCircuitData agentCircuit, GridRegion gatekeeper, GridRegion finalDestination, out string reason)
{
reason = string.Empty;
return LoginAgentToGrid(agentCircuit, gatekeeper, finalDestination, false, out reason);
}
TravelingAgentInfo CreateTravelInfo(AgentCircuitData agentCircuit, GridRegion region, bool fromLogin, out TravelingAgentInfo existing)
{
HGTravelingData hgt = m_Database.Get(agentCircuit.SessionID);
existing = null;
if (hgt != null)
{
// Very important! Override whatever this agent comes with.
// UserAgentService always sets the IP for every new agent
// with the original IP address.
existing = new TravelingAgentInfo(hgt);
agentCircuit.IPAddress = existing.ClientIPAddress;
}
TravelingAgentInfo travel = new TravelingAgentInfo(existing);
travel.SessionID = agentCircuit.SessionID;
travel.UserID = agentCircuit.AgentID;
travel.GridExternalName = region.ServerURI;
travel.ServiceToken = agentCircuit.ServiceSessionID;
if (fromLogin)
travel.ClientIPAddress = agentCircuit.IPAddress;
StoreTravelInfo(travel);
return travel;
}
public void LogoutAgent(UUID userID, UUID sessionID)
{
m_log.DebugFormat("[USER AGENT SERVICE]: User {0} logged out", userID);
m_Database.Delete(sessionID);
GridUserInfo guinfo = m_GridUserService.GetGridUserInfo(userID.ToString());
if (guinfo != null)
m_GridUserService.LoggedOut(userID.ToString(), sessionID, guinfo.LastRegionID, guinfo.LastPosition, guinfo.LastLookAt);
}
// We need to prevent foreign users with the same UUID as a local user
public bool IsAgentComingHome(UUID sessionID, string thisGridExternalName)
{
HGTravelingData hgt = m_Database.Get(sessionID);
if (hgt == null)
return false;
TravelingAgentInfo travel = new TravelingAgentInfo(hgt);
return travel.GridExternalName.ToLower() == thisGridExternalName.ToLower();
}
public bool VerifyClient(UUID sessionID, string reportedIP)
{
if (m_BypassClientVerification)
return true;
m_log.DebugFormat("[USER AGENT SERVICE]: Verifying Client session {0} with reported IP {1}.",
sessionID, reportedIP);
HGTravelingData hgt = m_Database.Get(sessionID);
if (hgt == null)
return false;
TravelingAgentInfo travel = new TravelingAgentInfo(hgt);
bool result = travel.ClientIPAddress == reportedIP || travel.MyIpAddress == reportedIP; // NATed
m_log.DebugFormat("[USER AGENT SERVICE]: Comparing {0} with login IP {1} and MyIP {1}; result is {3}",
reportedIP, travel.ClientIPAddress, travel.MyIpAddress, result);
return result;
}
public bool VerifyAgent(UUID sessionID, string token)
{
HGTravelingData hgt = m_Database.Get(sessionID);
if (hgt == null)
{
m_log.DebugFormat("[USER AGENT SERVICE]: Token verification for session {0}: no such session", sessionID);
return false;
}
TravelingAgentInfo travel = new TravelingAgentInfo(hgt);
m_log.DebugFormat("[USER AGENT SERVICE]: Verifying agent token {0} against {1}", token, travel.ServiceToken);
return travel.ServiceToken == token;
}
[Obsolete]
public List<UUID> StatusNotification(List<string> friends, UUID foreignUserID, bool online)
{
if (m_FriendsService == null || m_PresenceService == null)
{
m_log.WarnFormat("[USER AGENT SERVICE]: Unable to perform status notifications because friends or presence services are missing");
return new List<UUID>();
}
List<UUID> localFriendsOnline = new List<UUID>();
m_log.DebugFormat("[USER AGENT SERVICE]: Status notification: foreign user {0} wants to notify {1} local friends", foreignUserID, friends.Count);
// First, let's double check that the reported friends are, indeed, friends of that user
// And let's check that the secret matches
List<string> usersToBeNotified = new List<string>();
foreach (string uui in friends)
{
UUID localUserID;
string secret = string.Empty, tmp = string.Empty;
if (Util.ParseUniversalUserIdentifier(uui, out localUserID, out tmp, out tmp, out tmp, out secret))
{
FriendInfo[] friendInfos = m_FriendsService.GetFriends(localUserID);
foreach (FriendInfo finfo in friendInfos)
{
if (finfo.Friend.StartsWith(foreignUserID.ToString()) && finfo.Friend.EndsWith(secret))
{
// great!
usersToBeNotified.Add(localUserID.ToString());
}
}
}
}
// Now, let's send the notifications
m_log.DebugFormat("[USER AGENT SERVICE]: Status notification: user has {0} local friends", usersToBeNotified.Count);
// First, let's send notifications to local users who are online in the home grid
PresenceInfo[] friendSessions = m_PresenceService.GetAgents(usersToBeNotified.ToArray());
if (friendSessions != null && friendSessions.Length > 0)
{
PresenceInfo friendSession = null;
foreach (PresenceInfo pinfo in friendSessions)
if (pinfo.RegionID != UUID.Zero) // let's guard against traveling agents
{
friendSession = pinfo;
break;
}
if (friendSession != null)
{
ForwardStatusNotificationToSim(friendSession.RegionID, foreignUserID, friendSession.UserID, online);
usersToBeNotified.Remove(friendSession.UserID.ToString());
UUID id;
if (UUID.TryParse(friendSession.UserID, out id))
localFriendsOnline.Add(id);
}
}
//// Lastly, let's notify the rest who may be online somewhere else
//foreach (string user in usersToBeNotified)
//{
// UUID id = new UUID(user);
// if (m_Database.ContainsKey(id) && m_Database[id].GridExternalName != m_GridName)
// {
// string url = m_Database[id].GridExternalName;
// // forward
// m_log.WarnFormat("[USER AGENT SERVICE]: User {0} is visiting {1}. HG Status notifications still not implemented.", user, url);
// }
//}
// and finally, let's send the online friends
if (online)
{
return localFriendsOnline;
}
else
return new List<UUID>();
}
[Obsolete]
protected void ForwardStatusNotificationToSim(UUID regionID, UUID foreignUserID, string user, bool online)
{
UUID userID;
if (UUID.TryParse(user, out userID))
{
if (m_FriendsLocalSimConnector != null)
{
m_log.DebugFormat("[USER AGENT SERVICE]: Local Notify, user {0} is {1}", foreignUserID, (online ? "online" : "offline"));
m_FriendsLocalSimConnector.StatusNotify(foreignUserID, userID, online);
}
else
{
GridRegion region = m_GridService.GetRegionByUUID(UUID.Zero /* !!! */, regionID);
if (region != null)
{
m_log.DebugFormat("[USER AGENT SERVICE]: Remote Notify to region {0}, user {1} is {2}", region.RegionName, foreignUserID, (online ? "online" : "offline"));
m_FriendsSimConnector.StatusNotify(region, foreignUserID, userID.ToString(), online);
}
}
}
}
public List<UUID> GetOnlineFriends(UUID foreignUserID, List<string> friends)
{
List<UUID> online = new List<UUID>();
if (m_FriendsService == null || m_PresenceService == null)
{
m_log.WarnFormat("[USER AGENT SERVICE]: Unable to get online friends because friends or presence services are missing");
return online;
}
m_log.DebugFormat("[USER AGENT SERVICE]: Foreign user {0} wants to know status of {1} local friends", foreignUserID, friends.Count);
// First, let's double check that the reported friends are, indeed, friends of that user
// And let's check that the secret matches and the rights
List<string> usersToBeNotified = new List<string>();
foreach (string uui in friends)
{
UUID localUserID;
string secret = string.Empty, tmp = string.Empty;
if (Util.ParseUniversalUserIdentifier(uui, out localUserID, out tmp, out tmp, out tmp, out secret))
{
FriendInfo[] friendInfos = m_FriendsService.GetFriends(localUserID);
foreach (FriendInfo finfo in friendInfos)
{
if (finfo.Friend.StartsWith(foreignUserID.ToString()) && finfo.Friend.EndsWith(secret) &&
(finfo.TheirFlags & (int)FriendRights.CanSeeOnline) != 0 && (finfo.TheirFlags != -1))
{
// great!
usersToBeNotified.Add(localUserID.ToString());
}
}
}
}
// Now, let's find out their status
m_log.DebugFormat("[USER AGENT SERVICE]: GetOnlineFriends: user has {0} local friends with status rights", usersToBeNotified.Count);
// First, let's send notifications to local users who are online in the home grid
PresenceInfo[] friendSessions = m_PresenceService.GetAgents(usersToBeNotified.ToArray());
if (friendSessions != null && friendSessions.Length > 0)
{
foreach (PresenceInfo pi in friendSessions)
{
UUID presenceID;
if (UUID.TryParse(pi.UserID, out presenceID))
online.Add(presenceID);
}
}
return online;
}
public Dictionary<string, object> GetUserInfo(UUID userID)
{
Dictionary<string, object> info = new Dictionary<string, object>();
if (m_UserAccountService == null)
{
m_log.WarnFormat("[USER AGENT SERVICE]: Unable to get user flags because user account service is missing");
info["result"] = "fail";
info["message"] = "UserAccountService is missing!";
return info;
}
UserAccount account = m_UserAccountService.GetUserAccount(UUID.Zero /*!!!*/, userID);
if (account != null)
{
info.Add("user_flags", (object)account.UserFlags);
info.Add("user_created", (object)account.Created);
info.Add("user_title", (object)account.UserTitle);
info.Add("result", "success");
}
return info;
}
public Dictionary<string, object> GetServerURLs(UUID userID)
{
if (m_UserAccountService == null)
{
m_log.WarnFormat("[USER AGENT SERVICE]: Unable to get server URLs because user account service is missing");
return new Dictionary<string, object>();
}
UserAccount account = m_UserAccountService.GetUserAccount(UUID.Zero /*!!!*/, userID);
if (account != null)
return account.ServiceURLs;
return new Dictionary<string, object>();
}
public string LocateUser(UUID userID)
{
HGTravelingData[] hgts = m_Database.GetSessions(userID);
if (hgts == null)
return string.Empty;
foreach (HGTravelingData t in hgts)
if (t.Data.ContainsKey("GridExternalName") && !m_GridName.Equals(t.Data["GridExternalName"]))
return t.Data["GridExternalName"];
return string.Empty;
}
public string GetUUI(UUID userID, UUID targetUserID)
{
// Let's see if it's a local user
UserAccount account = m_UserAccountService.GetUserAccount(UUID.Zero, targetUserID);
if (account != null)
return targetUserID.ToString() + ";" + m_GridName + ";" + account.FirstName + " " + account.LastName ;
// Let's try the list of friends
FriendInfo[] friends = m_FriendsService.GetFriends(userID);
if (friends != null && friends.Length > 0)
{
foreach (FriendInfo f in friends)
if (f.Friend.StartsWith(targetUserID.ToString()))
{
// Let's remove the secret
UUID id; string tmp = string.Empty, secret = string.Empty;
if (Util.ParseUniversalUserIdentifier(f.Friend, out id, out tmp, out tmp, out tmp, out secret))
return f.Friend.Replace(secret, "0");
}
}
return string.Empty;
}
public UUID GetUUID(String first, String last)
{
// Let's see if it's a local user
UserAccount account = m_UserAccountService.GetUserAccount(UUID.Zero, first, last);
if (account != null)
{
// check user level
if (account.UserLevel < m_LevelOutsideContacts)
return UUID.Zero;
else
return account.PrincipalID;
}
else
return UUID.Zero;
}
#region Misc
private bool IsException(string dest, int level, Dictionary<int, List<string>> exceptions)
{
if (!exceptions.ContainsKey(level))
return false;
bool exception = false;
if (exceptions[level].Count > 0) // we have exceptions
{
string destination = dest;
if (!destination.EndsWith("/"))
destination += "/";
if (exceptions[level].Find(delegate(string s)
{
if (!s.EndsWith("/"))
s += "/";
return s == destination;
}) != null)
exception = true;
}
return exception;
}
private void StoreTravelInfo(TravelingAgentInfo travel)
{
if (travel == null)
return;
HGTravelingData hgt = new HGTravelingData();
hgt.SessionID = travel.SessionID;
hgt.UserID = travel.UserID;
hgt.Data = new Dictionary<string, string>();
hgt.Data["GridExternalName"] = travel.GridExternalName;
hgt.Data["ServiceToken"] = travel.ServiceToken;
hgt.Data["ClientIPAddress"] = travel.ClientIPAddress;
hgt.Data["MyIPAddress"] = travel.MyIpAddress;
m_Database.Store(hgt);
}
#endregion
}
class TravelingAgentInfo
{
public UUID SessionID;
public UUID UserID;
public string GridExternalName = string.Empty;
public string ServiceToken = string.Empty;
public string ClientIPAddress = string.Empty; // as seen from this user agent service
public string MyIpAddress = string.Empty; // the user agent service's external IP, as seen from the next gatekeeper
public TravelingAgentInfo(HGTravelingData t)
{
if (t.Data != null)
{
SessionID = new UUID(t.SessionID);
UserID = new UUID(t.UserID);
GridExternalName = t.Data["GridExternalName"];
ServiceToken = t.Data["ServiceToken"];
ClientIPAddress = t.Data["ClientIPAddress"];
MyIpAddress = t.Data["MyIPAddress"];
}
}
public TravelingAgentInfo(TravelingAgentInfo old)
{
if (old != null)
{
SessionID = old.SessionID;
UserID = old.UserID;
GridExternalName = old.GridExternalName;
ServiceToken = old.ServiceToken;
ClientIPAddress = old.ClientIPAddress;
MyIpAddress = old.MyIpAddress;
}
}
}
}