This hopefully fixes all issues with online/offline notifications across grids. http://opensimulator.org/mantis/view.php?id=5528

OpenSim/Region/CoreModules/Avatar/Friends/FriendsModule.cs

@@ -830,10 +830,10 @@ namespace OpenSim.Region.CoreModules.Avatar.Friends
 
         public bool LocalStatusNotification(UUID userID, UUID friendID, bool online)
         {
+            m_log.DebugFormat("[FRIENDS]: Local Status Notify {0} that user {1} is {2}", friendID, userID, online);
             IClientAPI friendClient = LocateClientObject(friendID);
             if (friendClient != null)
             {
-                //m_log.DebugFormat("[FRIENDS]: Local Status Notify {0} that user {1} is {2}", friendID, userID, online);
                 // the  friend in this sim as root agent
                 if (online)
                     friendClient.SendAgentOnline(new UUID[] { userID });

OpenSim/Region/CoreModules/Avatar/Friends/HGFriendsModule.cs

@@ -75,7 +75,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Friends
         /// <param name="friendID">friend whose status changed</param>
         /// <param name="online">status</param>
         /// <returns></returns>
-        public bool StatusNotify(UUID userID, UUID friendID, bool online)
+        public bool StatusNotify(UUID friendID, UUID userID, bool online)
         {
             return LocalStatusNotification(friendID, userID, online);
         }
@@ -279,7 +279,14 @@ namespace OpenSim.Region.CoreModules.Avatar.Friends
                     foreach (FriendInfo f in kvp.Value)
                         ids.Add(f.Friend);
                     UserAgentServiceConnector uConn = new UserAgentServiceConnector(kvp.Key);
-                    uConn.StatusNotification(ids, userID, online);
+                    List<UUID> friendsOnline = uConn.StatusNotification(ids, userID, online);
+                    // need to debug this here
+                    if (online)
+                    {
+                        IClientAPI client = LocateClientObject(userID);
+                        if (client != null)
+                            client.SendAgentOnline(friendsOnline.ToArray());
+                    }
                 }
             }
         }

OpenSim/Server/Handlers/Hypergrid/UserAgentServerConnector.cs

@@ -237,10 +237,20 @@ namespace OpenSim.Server.Handlers.Hypergrid
                 bool online = false;
                 bool.TryParse(requestData["online"].ToString(), out online);
 
-                hash["result"] = "true";
-
                 // let's spawn a thread for this, because it may take a long time...
-                Util.FireAndForget(delegate { m_HomeUsersService.StatusNotification(ids, userID, online); });
+                List<UUID> friendsOnline = m_HomeUsersService.StatusNotification(ids, userID, online);
+                if (friendsOnline.Count > 0)
+                {
+                    int i = 0;
+                    foreach (UUID id in friendsOnline)
+                    {
+                        hash["friend_" + i.ToString()] = id.ToString();
+                        i++;
+                    }
+                }
+                else
+                    hash["result"] = "No Friends Online";
+
             }
 
             XmlRpcResponse response = new XmlRpcResponse();

OpenSim/Services/Connectors/Hypergrid/UserAgentServiceConnector.cs

@@ -404,7 +404,7 @@ namespace OpenSim.Services.Connectors.Hypergrid
             GetBoolResponse(request, out reason);
         }
 
-        public void StatusNotification(List<string> friends, UUID userID, bool online)
+        public List<UUID> StatusNotification(List<string> friends, UUID userID, bool online)
         {
             Hashtable hash = new Hashtable();
             hash["userID"] = userID.ToString();
@@ -421,8 +421,59 @@ namespace OpenSim.Services.Connectors.Hypergrid
 
             XmlRpcRequest request = new XmlRpcRequest("status_notification", paramList);
             string reason = string.Empty;
-            GetBoolResponse(request, out reason);
 
+            // Send and get reply
+            List<UUID> friendsOnline = new List<UUID>();
+            XmlRpcResponse response = null;
+            try
+            {
+                response = request.Send(m_ServerURL, 10000);
+            }
+            catch (Exception e)
+            {
+                m_log.DebugFormat("[USER AGENT CONNECTOR]: Unable to contact remote server {0}", m_ServerURL);
+                reason = "Exception: " + e.Message;
+                return friendsOnline;
+            }
+
+            if (response.IsFault)
+            {
+                m_log.ErrorFormat("[USER AGENT CONNECTOR]: remote call to {0} returned an error: {1}", m_ServerURL, response.FaultString);
+                reason = "XMLRPC Fault";
+                return friendsOnline;
+            }
+
+            hash = (Hashtable)response.Value;
+            //foreach (Object o in hash)
+            //    m_log.Debug(">> " + ((DictionaryEntry)o).Key + ":" + ((DictionaryEntry)o).Value);
+            try
+            {
+                if (hash == null)
+                {
+                    m_log.ErrorFormat("[USER AGENT CONNECTOR]: GetOnlineFriends Got null response from {0}! THIS IS BAAAAD", m_ServerURL);
+                    reason = "Internal error 1";
+                    return friendsOnline;
+                }
+
+                // Here is the actual response
+                foreach (object key in hash.Keys)
+                {
+                    if (key is string && ((string)key).StartsWith("friend_") && hash[key] != null)
+                    {
+                        UUID uuid;
+                        if (UUID.TryParse(hash[key].ToString(), out uuid))
+                            friendsOnline.Add(uuid);
+                    }
+                }
+
+            }
+            catch (Exception e)
+            {
+                m_log.ErrorFormat("[USER AGENT CONNECTOR]: Got exception on GetOnlineFriends response.");
+                reason = "Exception: " + e.Message;
+            }
+
+            return friendsOnline;
         }
 
         public List<UUID> GetOnlineFriends(UUID userID, List<string> friends)

OpenSim/Services/HypergridService/UserAgentService.cs

@@ -324,14 +324,16 @@ namespace OpenSim.Services.HypergridService
             return false;
         }
 
-        public void StatusNotification(List<string> friends, UUID foreignUserID, bool online)
+        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;
+                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
@@ -372,8 +374,12 @@ namespace OpenSim.Services.HypergridService
 
                 if (friendSession != null)
                 {
-                    ForwardStatusNotificationToSim(friendSession.RegionID, friendSession.UserID, foreignUserID, online);
+                    ForwardStatusNotificationToSim(friendSession.RegionID, foreignUserID, friendSession.UserID, online);
                     usersToBeNotified.Remove(friendSession.UserID.ToString());
+                    UUID id;
+                    if (UUID.TryParse(friendSession.UserID, out id))
+                        localFriendsOnline.Add(id);
+
                 }
             }
 
@@ -388,9 +394,17 @@ namespace OpenSim.Services.HypergridService
                     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>();
         }
 
-        protected void ForwardStatusNotificationToSim(UUID regionID, string user, UUID foreignUserID, bool online)
+        protected void ForwardStatusNotificationToSim(UUID regionID, UUID foreignUserID, string user, bool online)
         {
             UUID userID;
             if (UUID.TryParse(user, out userID))
@@ -398,15 +412,15 @@ namespace OpenSim.Services.HypergridService
                 if (m_FriendsLocalSimConnector != null)
                 {
                     m_log.DebugFormat("[USER AGENT SERVICE]: Local Notify, user {0} is {1}", foreignUserID, (online ? "online" : "offline"));
-                    m_FriendsLocalSimConnector.StatusNotify(userID, foreignUserID, online);
+                    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, user, foreignUserID, (online ? "online" : "offline"));
+                        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, userID, foreignUserID, online);
+                        m_FriendsSimConnector.StatusNotify(region, foreignUserID, userID, online);
                     }
                 }
             }

OpenSim/Services/Interfaces/IHypergridServices.cs

@@ -61,7 +61,8 @@ namespace OpenSim.Services.Interfaces
         // on behalf of the userID
         string GetUUI(UUID userID, UUID targetUserID);
 
-        void StatusNotification(List<string> friends, UUID userID, bool online);
+        // Returns the local friends online
+        List<UUID> StatusNotification(List<string> friends, UUID userID, bool online);
         //List<UUID> GetOnlineFriends(UUID userID, List<string> friends);
 
         bool AgentIsComingHome(UUID sessionID, string thisGridExternalName);