410 lines
18 KiB
C#
410 lines
18 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.Friends;
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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 FriendInfo = OpenSim.Services.Interfaces.FriendInfo;
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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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/// W2W social networking
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/// </summary>
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public class HGFriendsService : IHGFriendsService
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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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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 IGatekeeperService m_GatekeeperService;
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protected static IFriendsService m_FriendsService;
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protected static IPresenceService m_PresenceService;
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protected static IUserAccountService m_UserAccountService;
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protected static IFriendsSimConnector m_FriendsLocalSimConnector; // standalone, points to HGFriendsModule
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protected static FriendsSimConnector m_FriendsSimConnector; // grid
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private static string m_ConfigName = "HGFriendsService";
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public HGFriendsService(IConfigSource config, String configName, IFriendsSimConnector localSimConn)
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{
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if (m_FriendsLocalSimConnector == null)
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m_FriendsLocalSimConnector = localSimConn;
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if (!m_Initialized)
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{
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m_Initialized = true;
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if (configName != String.Empty)
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m_ConfigName = configName;
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Object[] args = new Object[] { config };
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IConfig serverConfig = config.Configs[m_ConfigName];
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if (serverConfig == null)
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throw new Exception(String.Format("No section {0} in config file", m_ConfigName));
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string theService = serverConfig.GetString("FriendsService", string.Empty);
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if (theService == String.Empty)
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throw new Exception("No FriendsService in config file " + m_ConfigName);
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m_FriendsService = ServerUtils.LoadPlugin<IFriendsService>(theService, args);
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theService = serverConfig.GetString("UserAccountService", string.Empty);
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if (theService == String.Empty)
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throw new Exception("No UserAccountService in " + m_ConfigName);
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m_UserAccountService = ServerUtils.LoadPlugin<IUserAccountService>(theService, args);
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theService = serverConfig.GetString("GridService", string.Empty);
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if (theService == String.Empty)
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throw new Exception("No GridService in " + m_ConfigName);
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m_GridService = ServerUtils.LoadPlugin<IGridService>(theService, args);
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theService = serverConfig.GetString("PresenceService", string.Empty);
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if (theService == String.Empty)
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throw new Exception("No PresenceService in " + m_ConfigName);
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m_PresenceService = ServerUtils.LoadPlugin<IPresenceService>(theService, args);
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m_FriendsSimConnector = new FriendsSimConnector();
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m_log.DebugFormat("[HGFRIENDS SERVICE]: Starting...");
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}
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}
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#region IHGFriendsService
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public int GetFriendPerms(UUID userID, UUID friendID)
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{
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FriendInfo[] friendsInfo = m_FriendsService.GetFriends(userID);
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foreach (FriendInfo finfo in friendsInfo)
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{
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if (finfo.Friend.StartsWith(friendID.ToString()))
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return finfo.TheirFlags;
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}
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return -1;
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}
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public bool NewFriendship(FriendInfo friend, bool verified)
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{
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UUID friendID;
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string tmp = string.Empty, url = String.Empty, first = String.Empty, last = String.Empty;
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if (!Util.ParseUniversalUserIdentifier(friend.Friend, out friendID, out url, out first, out last, out tmp))
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return false;
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m_log.DebugFormat("[HGFRIENDS SERVICE]: New friendship {0} {1} ({2})", friend.PrincipalID, friend.Friend, verified);
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// Does the friendship already exist?
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FriendInfo[] finfos = m_FriendsService.GetFriends(friend.PrincipalID);
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foreach (FriendInfo finfo in finfos)
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{
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if (finfo.Friend.StartsWith(friendID.ToString()))
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return false;
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}
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// Verified user session. But the user needs to confirm friendship when he gets home
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if (verified)
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return m_FriendsService.StoreFriend(friend.PrincipalID.ToString(), friend.Friend, 0);
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// Does the reverted friendship exist? meaning that this user initiated the request
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finfos = m_FriendsService.GetFriends(friendID);
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bool userInitiatedOffer = false;
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foreach (FriendInfo finfo in finfos)
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{
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if (friend.Friend.StartsWith(finfo.PrincipalID.ToString()) && finfo.Friend.StartsWith(friend.PrincipalID.ToString()) && finfo.TheirFlags == -1)
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{
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userInitiatedOffer = true;
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// Let's delete the existing friendship relations that was stored
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m_FriendsService.Delete(friendID, finfo.Friend);
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break;
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}
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}
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if (userInitiatedOffer)
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{
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m_FriendsService.StoreFriend(friend.PrincipalID.ToString(), friend.Friend, 1);
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m_FriendsService.StoreFriend(friend.Friend, friend.PrincipalID.ToString(), 1);
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// notify the user
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ForwardToSim("ApproveFriendshipRequest", friendID, Util.UniversalName(first, last, url), "", friend.PrincipalID, "");
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return true;
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}
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return false;
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}
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public bool DeleteFriendship(FriendInfo friend, string secret)
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{
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FriendInfo[] finfos = m_FriendsService.GetFriends(friend.PrincipalID);
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foreach (FriendInfo finfo in finfos)
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{
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// We check the secret here. Or if the friendship request was initiated here, and was declined
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if (finfo.Friend.StartsWith(friend.Friend) && finfo.Friend.EndsWith(secret))
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{
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m_log.DebugFormat("[HGFRIENDS SERVICE]: Delete friendship {0} {1}", friend.PrincipalID, friend.Friend);
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m_FriendsService.Delete(friend.PrincipalID, finfo.Friend);
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m_FriendsService.Delete(finfo.Friend, friend.PrincipalID.ToString());
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return true;
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}
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}
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return false;
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}
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public bool FriendshipOffered(UUID fromID, string fromName, UUID toID, string message)
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{
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UserAccount account = m_UserAccountService.GetUserAccount(UUID.Zero, toID);
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if (account == null)
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return false;
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// OK, we have that user here.
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// So let's send back the call, but start a thread to continue
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// with the verification and the actual action.
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Util.FireAndForget(
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o => ProcessFriendshipOffered(fromID, fromName, toID, message), null, "HGFriendsService.ProcessFriendshipOffered");
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return true;
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}
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public bool ValidateFriendshipOffered(UUID fromID, UUID toID)
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{
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FriendInfo[] finfos = m_FriendsService.GetFriends(toID.ToString());
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foreach (FriendInfo fi in finfos)
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{
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if (fi.Friend.StartsWith(fromID.ToString()) && fi.TheirFlags == -1)
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return true;
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}
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return false;
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}
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public List<UUID> StatusNotification(List<string> friends, UUID foreignUserID, bool online)
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{
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if (m_FriendsService == null || m_PresenceService == null)
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{
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m_log.WarnFormat("[HGFRIENDS SERVICE]: Unable to perform status notifications because friends or presence services are missing");
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return new List<UUID>();
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}
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// Let's unblock the caller right now, and take it from here async
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List<UUID> localFriendsOnline = new List<UUID>();
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m_log.DebugFormat("[HGFRIENDS SERVICE]: Status notification: foreign user {0} wants to notify {1} local friends of {2} status",
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foreignUserID, friends.Count, (online ? "online" : "offline"));
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// First, let's double check that the reported friends are, indeed, friends of that user
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// And let's check that the secret matches
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List<string> usersToBeNotified = new List<string>();
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foreach (string uui in friends)
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{
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UUID localUserID;
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string secret = string.Empty, tmp = string.Empty;
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if (Util.ParseUniversalUserIdentifier(uui, out localUserID, out tmp, out tmp, out tmp, out secret))
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{
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FriendInfo[] friendInfos = m_FriendsService.GetFriends(localUserID);
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foreach (FriendInfo finfo in friendInfos)
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{
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if (finfo.Friend.StartsWith(foreignUserID.ToString()) && finfo.Friend.EndsWith(secret))
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{
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// great!
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usersToBeNotified.Add(localUserID.ToString());
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}
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}
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}
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}
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// Now, let's send the notifications
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//m_log.DebugFormat("[HGFRIENDS SERVICE]: Status notification: user has {0} local friends", usersToBeNotified.Count);
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// First, let's send notifications to local users who are online in the home grid
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PresenceInfo[] friendSessions = m_PresenceService.GetAgents(usersToBeNotified.ToArray());
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if (friendSessions != null && friendSessions.Length > 0)
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{
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PresenceInfo friendSession = null;
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foreach (PresenceInfo pinfo in friendSessions)
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if (pinfo.RegionID != UUID.Zero) // let's guard against traveling agents
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{
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friendSession = pinfo;
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break;
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}
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if (friendSession != null)
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{
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ForwardStatusNotificationToSim(friendSession.RegionID, foreignUserID, friendSession.UserID, online);
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usersToBeNotified.Remove(friendSession.UserID.ToString());
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UUID id;
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if (UUID.TryParse(friendSession.UserID, out id))
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localFriendsOnline.Add(id);
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}
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}
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// // Lastly, let's notify the rest who may be online somewhere else
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// foreach (string user in usersToBeNotified)
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// {
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// UUID id = new UUID(user);
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// //m_UserAgentService.LocateUser(id);
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// //etc...
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// //if (m_TravelingAgents.ContainsKey(id) && m_TravelingAgents[id].GridExternalName != m_GridName)
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// //{
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// // string url = m_TravelingAgents[id].GridExternalName;
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// // // forward
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// //}
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// //m_log.WarnFormat("[HGFRIENDS SERVICE]: User {0} is visiting another grid. HG Status notifications still not implemented.", user);
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// }
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// and finally, let's send the online friends
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if (online)
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{
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return localFriendsOnline;
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}
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else
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return new List<UUID>();
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}
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#endregion IHGFriendsService
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#region Aux
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private void ProcessFriendshipOffered(UUID fromID, String fromName, UUID toID, String message)
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{
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// Great, it's a genuine request. Let's proceed.
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// But now we need to confirm that the requester is who he says he is
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// before we act on the friendship request.
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if (!fromName.Contains("@"))
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return;
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string[] parts = fromName.Split(new char[] {'@'});
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if (parts.Length != 2)
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return;
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string uriStr = "http://" + parts[1];
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try
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{
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new Uri(uriStr);
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}
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catch (UriFormatException)
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{
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return;
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}
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UserAgentServiceConnector uasConn = new UserAgentServiceConnector(uriStr);
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Dictionary<string, object> servers = uasConn.GetServerURLs(fromID);
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if (!servers.ContainsKey("FriendsServerURI"))
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return;
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HGFriendsServicesConnector friendsConn = new HGFriendsServicesConnector(servers["FriendsServerURI"].ToString());
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if (!friendsConn.ValidateFriendshipOffered(fromID, toID))
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{
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m_log.WarnFormat("[HGFRIENDS SERVICE]: Friendship request from {0} to {1} is invalid. Impersonations?", fromID, toID);
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return;
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}
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string fromUUI = Util.UniversalIdentifier(fromID, parts[0], "@" + parts[1], uriStr);
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// OK, we're good!
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ForwardToSim("FriendshipOffered", fromID, fromName, fromUUI, toID, message);
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}
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private bool ForwardToSim(string op, UUID fromID, string name, String fromUUI, UUID toID, string message)
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{
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PresenceInfo session = null;
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GridRegion region = null;
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PresenceInfo[] sessions = m_PresenceService.GetAgents(new string[] { toID.ToString() });
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if (sessions != null && sessions.Length > 0)
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session = sessions[0];
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if (session != null)
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region = m_GridService.GetRegionByUUID(UUID.Zero, session.RegionID);
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switch (op)
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{
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case "FriendshipOffered":
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// Let's store backwards
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string secret = UUID.Random().ToString().Substring(0, 8);
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m_FriendsService.StoreFriend(toID.ToString(), fromUUI + ";" + secret, 0);
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if (m_FriendsLocalSimConnector != null) // standalone
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{
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GridInstantMessage im = new GridInstantMessage(null, fromID, name, toID,
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(byte)InstantMessageDialog.FriendshipOffered, message, false, Vector3.Zero);
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// !! HACK
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im.imSessionID = im.fromAgentID;
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return m_FriendsLocalSimConnector.LocalFriendshipOffered(toID, im);
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}
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else if (region != null) // grid
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return m_FriendsSimConnector.FriendshipOffered(region, fromID, toID, message, name);
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break;
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case "ApproveFriendshipRequest":
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if (m_FriendsLocalSimConnector != null) // standalone
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return m_FriendsLocalSimConnector.LocalFriendshipApproved(fromID, name, toID);
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else if (region != null) //grid
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return m_FriendsSimConnector.FriendshipApproved(region, fromID, name, toID);
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break;
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}
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return false;
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}
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protected void ForwardStatusNotificationToSim(UUID regionID, UUID foreignUserID, string user, bool online)
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{
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UUID userID;
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if (UUID.TryParse(user, out userID))
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{
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if (m_FriendsLocalSimConnector != null)
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{
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m_log.DebugFormat("[HGFRIENDS SERVICE]: Local Notify, user {0} is {1}", foreignUserID, (online ? "online" : "offline"));
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m_FriendsLocalSimConnector.StatusNotify(foreignUserID, userID, online);
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}
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else
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{
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GridRegion region = m_GridService.GetRegionByUUID(UUID.Zero /* !!! */, regionID);
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if (region != null)
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{
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m_log.DebugFormat("[HGFRIENDS SERVICE]: Remote Notify to region {0}, user {1} is {2}", region.RegionName, foreignUserID, (online ? "online" : "offline"));
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m_FriendsSimConnector.StatusNotify(region, foreignUserID, userID.ToString(), online);
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}
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}
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}
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}
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#endregion Aux
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}
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}
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