/* * Copyright (c) Contributors, http://opensimulator.org/ * See CONTRIBUTORS.TXT for a full list of copyright holders. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of the OpenSimulator Project nor the * names of its contributors may be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ using System; using System.Collections.Generic; using System.Net; using System.Reflection; 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> /// W2W social networking /// </summary> public class HGFriendsService : IHGFriendsService { private static readonly ILog m_log = LogManager.GetLogger( MethodBase.GetCurrentMethod().DeclaringType); static bool m_Initialized = false; protected static IGridUserService m_GridUserService; protected static IGridService m_GridService; 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 private static string m_ConfigName = "HGFriendsService"; public HGFriendsService(IConfigSource config, String configName, IFriendsSimConnector localSimConn) { if (m_FriendsLocalSimConnector == null) m_FriendsLocalSimConnector = localSimConn; if (!m_Initialized) { m_Initialized = true; if (configName != String.Empty) m_ConfigName = configName; Object[] args = new Object[] { config }; IConfig serverConfig = config.Configs[m_ConfigName]; if (serverConfig == null) throw new Exception(String.Format("No section {0} in config file", m_ConfigName)); string theService = serverConfig.GetString("FriendsService", string.Empty); if (theService == String.Empty) throw new Exception("No FriendsService in config file " + m_ConfigName); m_FriendsService = ServerUtils.LoadPlugin<IFriendsService>(theService, args); theService = serverConfig.GetString("UserAccountService", string.Empty); if (theService == String.Empty) throw new Exception("No UserAccountService in " + m_ConfigName); m_UserAccountService = ServerUtils.LoadPlugin<IUserAccountService>(theService, args); theService = serverConfig.GetString("GridService", string.Empty); if (theService == String.Empty) throw new Exception("No GridService in " + m_ConfigName); m_GridService = ServerUtils.LoadPlugin<IGridService>(theService, args); theService = serverConfig.GetString("PresenceService", string.Empty); if (theService == String.Empty) throw new Exception("No PresenceService in " + m_ConfigName); m_PresenceService = ServerUtils.LoadPlugin<IPresenceService>(theService, args); m_FriendsSimConnector = new FriendsSimConnector(); m_log.DebugFormat("[HGFRIENDS SERVICE]: Starting..."); } } #region IHGFriendsService public int GetFriendPerms(UUID userID, UUID friendID) { FriendInfo[] friendsInfo = m_FriendsService.GetFriends(userID); foreach (FriendInfo finfo in friendsInfo) { if (finfo.Friend.StartsWith(friendID.ToString())) return finfo.TheirFlags; } return -1; } public bool NewFriendship(FriendInfo friend, bool verified) { UUID friendID; string tmp = string.Empty, url = String.Empty, first = String.Empty, last = String.Empty; if (!Util.ParseUniversalUserIdentifier(friend.Friend, out friendID, out url, out first, out last, out tmp)) return false; m_log.DebugFormat("[HGFRIENDS SERVICE]: New friendship {0} {1} ({2})", friend.PrincipalID, friend.Friend, verified); // Does the friendship already exist? FriendInfo[] finfos = m_FriendsService.GetFriends(friend.PrincipalID); foreach (FriendInfo finfo in finfos) { if (finfo.Friend.StartsWith(friendID.ToString())) return false; } // Verified user session. But the user needs to confirm friendship when he gets home if (verified) return m_FriendsService.StoreFriend(friend.PrincipalID.ToString(), friend.Friend, 0); // Does the reverted friendship exist? meaning that this user initiated the request finfos = m_FriendsService.GetFriends(friendID); bool userInitiatedOffer = false; foreach (FriendInfo finfo in finfos) { if (friend.Friend.StartsWith(finfo.PrincipalID.ToString()) && finfo.Friend.StartsWith(friend.PrincipalID.ToString()) && finfo.TheirFlags == -1) { userInitiatedOffer = true; // Let's delete the existing friendship relations that was stored m_FriendsService.Delete(friendID, finfo.Friend); break; } } if (userInitiatedOffer) { m_FriendsService.StoreFriend(friend.PrincipalID.ToString(), friend.Friend, 1); m_FriendsService.StoreFriend(friend.Friend, friend.PrincipalID.ToString(), 1); // notify the user ForwardToSim("ApproveFriendshipRequest", friendID, Util.UniversalName(first, last, url), "", friend.PrincipalID, ""); return true; } return false; } public bool DeleteFriendship(FriendInfo friend, string secret) { FriendInfo[] finfos = m_FriendsService.GetFriends(friend.PrincipalID); foreach (FriendInfo finfo in finfos) { // We check the secret here. Or if the friendship request was initiated here, and was declined if (finfo.Friend.StartsWith(friend.Friend) && finfo.Friend.EndsWith(secret)) { m_log.DebugFormat("[HGFRIENDS SERVICE]: Delete friendship {0} {1}", friend.PrincipalID, friend.Friend); m_FriendsService.Delete(friend.PrincipalID, finfo.Friend); m_FriendsService.Delete(finfo.Friend, friend.PrincipalID.ToString()); return true; } } return false; } public bool FriendshipOffered(UUID fromID, string fromName, UUID toID, string message) { UserAccount account = m_UserAccountService.GetUserAccount(UUID.Zero, toID); if (account == null) return false; // OK, we have that user here. // So let's send back the call, but start a thread to continue // with the verification and the actual action. Util.FireAndForget(delegate { ProcessFriendshipOffered(fromID, fromName, toID, message); }); return true; } public bool ValidateFriendshipOffered(UUID fromID, UUID toID) { FriendInfo[] finfos = m_FriendsService.GetFriends(toID.ToString()); foreach (FriendInfo fi in finfos) { if (fi.Friend.StartsWith(fromID.ToString()) && fi.TheirFlags == -1) return true; } return false; } public List<UUID> StatusNotification(List<string> friends, UUID foreignUserID, bool online) { if (m_FriendsService == null || m_PresenceService == null) { m_log.WarnFormat("[HGFRIENDS SERVICE]: Unable to perform status notifications because friends or presence services are missing"); return new List<UUID>(); } // Let's unblock the caller right now, and take it from here async List<UUID> localFriendsOnline = new List<UUID>(); m_log.DebugFormat("[HGFRIENDS SERVICE]: Status notification: foreign user {0} wants to notify {1} local friends of {2} status", foreignUserID, friends.Count, (online ? "online" : "offline")); // 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("[HGFRIENDS 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); //m_UserAgentService.LocateUser(id); //etc... //if (m_TravelingAgents.ContainsKey(id) && m_TravelingAgents[id].GridExternalName != m_GridName) //{ // string url = m_TravelingAgents[id].GridExternalName; // // forward //} //m_log.WarnFormat("[HGFRIENDS SERVICE]: User {0} is visiting another grid. HG Status notifications still not implemented.", user); } // and finally, let's send the online friends if (online) { return localFriendsOnline; } else return new List<UUID>(); } #endregion IHGFriendsService #region Aux private void ProcessFriendshipOffered(UUID fromID, String fromName, UUID toID, String message) { // Great, it's a genuine request. Let's proceed. // But now we need to confirm that the requester is who he says he is // before we act on the friendship request. if (!fromName.Contains("@")) return; string[] parts = fromName.Split(new char[] {'@'}); if (parts.Length != 2) return; string uriStr = "http://" + parts[1]; try { new Uri(uriStr); } catch (UriFormatException) { return; } UserAgentServiceConnector uasConn = new UserAgentServiceConnector(uriStr); Dictionary<string, object> servers = uasConn.GetServerURLs(fromID); if (!servers.ContainsKey("FriendsServerURI")) return; HGFriendsServicesConnector friendsConn = new HGFriendsServicesConnector(servers["FriendsServerURI"].ToString()); if (!friendsConn.ValidateFriendshipOffered(fromID, toID)) { m_log.WarnFormat("[HGFRIENDS SERVICE]: Friendship request from {0} to {1} is invalid. Impersonations?", fromID, toID); return; } string fromUUI = Util.UniversalIdentifier(fromID, parts[0], "@" + parts[1], uriStr); // OK, we're good! ForwardToSim("FriendshipOffered", fromID, fromName, fromUUI, toID, message); } private bool ForwardToSim(string op, UUID fromID, string name, String fromUUI, UUID toID, string message) { PresenceInfo session = null; GridRegion region = null; PresenceInfo[] sessions = m_PresenceService.GetAgents(new string[] { toID.ToString() }); if (sessions != null && sessions.Length > 0) session = sessions[0]; if (session != null) region = m_GridService.GetRegionByUUID(UUID.Zero, session.RegionID); switch (op) { case "FriendshipOffered": // Let's store backwards string secret = UUID.Random().ToString().Substring(0, 8); m_FriendsService.StoreFriend(toID.ToString(), fromUUI + ";" + secret, 0); if (m_FriendsLocalSimConnector != null) // standalone { GridInstantMessage im = new GridInstantMessage(null, fromID, name, toID, (byte)InstantMessageDialog.FriendshipOffered, message, false, Vector3.Zero); // !! HACK im.imSessionID = im.fromAgentID; return m_FriendsLocalSimConnector.LocalFriendshipOffered(toID, im); } else if (region != null) // grid return m_FriendsSimConnector.FriendshipOffered(region, fromID, toID, message, name); break; case "ApproveFriendshipRequest": if (m_FriendsLocalSimConnector != null) // standalone return m_FriendsLocalSimConnector.LocalFriendshipApproved(fromID, name, toID); else if (region != null) //grid return m_FriendsSimConnector.FriendshipApproved(region, fromID, name, toID); break; } return false; } 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("[HGFRIENDS 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("[HGFRIENDS SERVICE]: Remote Notify to region {0}, user {1} is {2}", region.RegionName, foreignUserID, (online ? "online" : "offline")); m_FriendsSimConnector.StatusNotify(region, foreignUserID, userID, online); } } } } #endregion Aux } }