6 files changed, 173 insertions, 2 deletions

diff --git a/OpenSim/Services/Connectors/Hypergrid/HGFriendsServiceConnector.cs b/OpenSim/Services/Connectors/Hypergrid/HGFriendsServiceConnector.cs
index e3f3260..e984a54 100644
--- a/OpenSim/Services/Connectors/Hypergrid/HGFriendsServiceConnector.cs
+++ b/OpenSim/Services/Connectors/Hypergrid/HGFriendsServiceConnector.cs
@@ -255,6 +255,58 @@ namespace OpenSim.Services.Connectors.Hypergrid
             return false;
 
         }
+
+        public List<UUID> StatusNotification(List<string> friends, UUID userID, bool online)
+        {
+            Dictionary<string, object> sendData = new Dictionary<string, object>();
+            List<UUID> friendsOnline = new List<UUID>();
+
+            sendData["METHOD"] = "statusnotification";
+            sendData["userID"] = userID.ToString();
+            sendData["online"] = online.ToString();
+            int i = 0;
+            foreach (string s in friends)
+            {
+                sendData["friend_" + i.ToString()] = s;
+                i++;
+            }
+
+            string reply = string.Empty;
+            string uri = m_ServerURI + "/hgfriends";
+            try
+            {
+                reply = SynchronousRestFormsRequester.MakeRequest("POST",
+                        uri,
+                        ServerUtils.BuildQueryString(sendData));
+            }
+            catch (Exception e)
+            {
+                m_log.DebugFormat("[HGFRIENDS CONNECTOR]: Exception when contacting friends server at {0}: {1}", uri, e.Message);
+                return friendsOnline;
+            }
+
+            if (reply != string.Empty)
+            {
+                Dictionary<string, object> replyData = ServerUtils.ParseXmlResponse(reply);
+
+                // Here is the actual response
+                foreach (string key in replyData.Keys)
+                {
+                    if (key.StartsWith("friend_") && replyData[key] != null)
+                    {
+                        UUID uuid;
+                        if (UUID.TryParse(replyData[key].ToString(), out uuid))
+                            friendsOnline.Add(uuid);
+                    }
+                }
+            }
+            else
+                m_log.DebugFormat("[HGFRIENDS CONNECTOR]: Received empty reply from remote StatusNotify");
+
+            return friendsOnline;
+
+        }
+
         #endregion
     }
 }
\ No newline at end of file
diff --git a/OpenSim/Services/Connectors/Hypergrid/UserAgentServiceConnector.cs b/OpenSim/Services/Connectors/Hypergrid/UserAgentServiceConnector.cs
index c07c6a6..c542c29 100644
--- a/OpenSim/Services/Connectors/Hypergrid/UserAgentServiceConnector.cs
+++ b/OpenSim/Services/Connectors/Hypergrid/UserAgentServiceConnector.cs
@@ -415,6 +415,7 @@ namespace OpenSim.Services.Connectors.Hypergrid
             GetBoolResponse(request, out reason);
         }
 
+        [Obsolete]
         public List<UUID> StatusNotification(List<string> friends, UUID userID, bool online)
         {
             Hashtable hash = new Hashtable();
diff --git a/OpenSim/Services/Connectors/UserAccounts/UserAccountServiceConnector.cs b/OpenSim/Services/Connectors/UserAccounts/UserAccountServiceConnector.cs
index 7815d7d..5731e2f 100644
--- a/OpenSim/Services/Connectors/UserAccounts/UserAccountServiceConnector.cs
+++ b/OpenSim/Services/Connectors/UserAccounts/UserAccountServiceConnector.cs
@@ -202,8 +202,15 @@ namespace OpenSim.Services.Connectors
 
             Dictionary<string, object> structData = data.ToKeyValuePairs();
 
-            foreach (KeyValuePair<string,object> kvp in structData)
+            foreach (KeyValuePair<string, object> kvp in structData)
+            {
+                if (kvp.Value == null)
+                {
+                    m_log.DebugFormat("[ACCOUNTS CONNECTOR]: Null value for {0}", kvp.Key);
+                    continue;
+                }
                 sendData[kvp.Key] = kvp.Value.ToString();
+            }
 
             return SendAndGetBoolReply(sendData);
         }
diff --git a/OpenSim/Services/HypergridService/HGFriendsService.cs b/OpenSim/Services/HypergridService/HGFriendsService.cs
index 19ee3e2..39524ab 100644
--- a/OpenSim/Services/HypergridService/HGFriendsService.cs
+++ b/OpenSim/Services/HypergridService/HGFriendsService.cs
@@ -214,6 +214,91 @@ namespace OpenSim.Services.HypergridService
             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
@@ -296,6 +381,28 @@ namespace OpenSim.Services.HypergridService
             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
     }
 }
diff --git a/OpenSim/Services/HypergridService/UserAgentService.cs b/OpenSim/Services/HypergridService/UserAgentService.cs
index 65963d9..842ca58 100644
--- a/OpenSim/Services/HypergridService/UserAgentService.cs
+++ b/OpenSim/Services/HypergridService/UserAgentService.cs
@@ -332,6 +332,7 @@ namespace OpenSim.Services.HypergridService
             return false;
         }
 
+        [Obsolete]
         public List<UUID> StatusNotification(List<string> friends, UUID foreignUserID, bool online)
         {
             if (m_FriendsService == null || m_PresenceService == null)
@@ -412,6 +413,7 @@ namespace OpenSim.Services.HypergridService
                 return new List<UUID>();
         }
 
+        [Obsolete]
         protected void ForwardStatusNotificationToSim(UUID regionID, UUID foreignUserID, string user, bool online)
         {
             UUID userID;
diff --git a/OpenSim/Services/Interfaces/IHypergridServices.cs b/OpenSim/Services/Interfaces/IHypergridServices.cs
index f48b8a9..3dc877a 100644
--- a/OpenSim/Services/Interfaces/IHypergridServices.cs
+++ b/OpenSim/Services/Interfaces/IHypergridServices.cs
@@ -65,8 +65,8 @@ namespace OpenSim.Services.Interfaces
         UUID GetUUID(String first, String last);
 
         // Returns the local friends online
+        [Obsolete]
         List<UUID> StatusNotification(List<string> friends, UUID userID, bool online);
-        //List<UUID> GetOnlineFriends(UUID userID, List<string> friends);
 
         bool IsAgentComingHome(UUID sessionID, string thisGridExternalName);
         bool VerifyAgent(UUID sessionID, string token);
@@ -92,6 +92,8 @@ namespace OpenSim.Services.Interfaces
         bool DeleteFriendship(FriendInfo finfo, string secret);
         bool FriendshipOffered(UUID from, string fromName, UUID to, string message);
         bool ValidateFriendshipOffered(UUID fromID, UUID toID);
+        // Returns the local friends online
+        List<UUID> StatusNotification(List<string> friends, UUID userID, bool online);
     }
 
     public interface IInstantMessageSimConnector