This changeset changes the way chat from client is routed:

     old way: each region module interested in chat from client had to
     	 - subscribe to scene.EventManager.OnNewClient
	 - then in its OnNewClient delegate it would subscribe to
           client.OnChatFromViewer to capture chat messages coming

     new way: ChatModule is the only region module that uses the "old
         way" approach but is now forwarding all client chat via
         scene.EventManager.OnChatFromClient
	 - each region module interested in chat from client now only
           subscribes to scene.EventManager.OnChatFromClient

this not only simplifies code, but also allows us to substitute
ChatModule with derived classes (ConciergeModule is going to be one
example).

Also, this changeset changes ChatFromViewer to ChatFromClient as it
doesn't necessarily have to be a viewer that is a chat source.

i've taken great care to only comment out those OnNewClient delegates
that were only used for getting at the client chat --- hope it's not
breaking anything.

3 files changed, 150 insertions, 135 deletions

diff --git a/OpenSim/Region/Environment/Modules/Avatar/Chat/ChatModule.cs b/OpenSim/Region/Environment/Modules/Avatar/Chat/ChatModule.cs
index 606ce7e..34a604e 100644
--- a/OpenSim/Region/Environment/Modules/Avatar/Chat/ChatModule.cs
+++ b/OpenSim/Region/Environment/Modules/Avatar/Chat/ChatModule.cs
@@ -64,26 +64,25 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Chat
                 {
                     m_scenes.Add(scene);
                     scene.EventManager.OnNewClient += OnNewClient;
-                    scene.EventManager.OnChatFromWorld += OnSimChat;
-                    scene.EventManager.OnChatBroadcast += OnSimBroadcast;
+                    scene.EventManager.OnChatFromWorld += OnChatFromWorld;
+                    scene.EventManager.OnChatBroadcast += OnChatBroadcast;
                 }
+            }
 
-                // wrap this in a try block so that defaults will work if
-                // the config file doesn't specify otherwise.
-                try
-                {
-                    m_whisperdistance = config.Configs["Chat"].GetInt("whisper_distance", m_whisperdistance);
-                    m_saydistance = config.Configs["Chat"].GetInt("say_distance", m_saydistance);
-                    m_shoutdistance = config.Configs["Chat"].GetInt("shout_distance", m_shoutdistance);
-                }
-                catch (Exception)
-                {
-                }
-                m_log.InfoFormat("[CHAT] initialized for {0} w:{1} s:{2} S:{3}", scene.RegionInfo.RegionName,
-                                 m_whisperdistance, m_saydistance, m_shoutdistance);
+            // wrap this in a try block so that defaults will work if
+            // the config file doesn't specify otherwise.
+            try
+            {
+                m_whisperdistance = config.Configs["Chat"].GetInt("whisper_distance", m_whisperdistance);
+                m_saydistance = config.Configs["Chat"].GetInt("say_distance", m_saydistance);
+                m_shoutdistance = config.Configs["Chat"].GetInt("shout_distance", m_shoutdistance);
             }
+            catch (Exception)
+            {
+            }
+            m_log.InfoFormat("[CHAT] initialized for {0} w:{1} s:{2} S:{3}", scene.RegionInfo.RegionName,
+                             m_whisperdistance, m_saydistance, m_shoutdistance);
         }
-
         public void PostInitialise()
         {
         }
@@ -104,8 +103,89 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Chat
 
         #endregion
 
-        #region ISimChat Members
-        public void OnSimBroadcast(Object sender, OSChatMessage c)
+
+        public void OnNewClient(IClientAPI client)
+        {
+            try
+            {
+                client.OnChatFromClient += OnChatFromClient;
+            }
+            catch (Exception ex)
+            {
+                m_log.Error("[CHAT]: NewClient exception trap:" + ex.ToString());
+            }
+        }
+
+        public virtual void OnChatFromClient(Object sender, OSChatMessage e)
+        {
+            // redistribute to interested subscribers
+            Scene scene = (Scene)e.Scene;
+            scene.EventManager.TriggerOnChatFromClient(sender, e);
+
+            // early return if not on public or debug channel
+            if (e.Channel != 0 && e.Channel != DEBUG_CHANNEL) return;
+
+            // sanity check:
+            if (e.Sender == null)
+            {
+                m_log.ErrorFormat("[CHAT] OnChatFromClient from {0} has empty Sender field!", sender);
+                return;
+            }
+
+            string message = e.Message;
+            if (e.Channel == DEBUG_CHANNEL) e.Type = ChatTypeEnum.DebugChannel;
+
+            ScenePresence avatar = scene.GetScenePresence(e.Sender.AgentId);
+            Vector3 fromPos = avatar.AbsolutePosition;
+            Vector3 regionPos = new Vector3(scene.RegionInfo.RegionLocX * Constants.RegionSize,
+                                            scene.RegionInfo.RegionLocY * Constants.RegionSize, 0);
+            string fromName = avatar.Firstname + " " + avatar.Lastname;
+            UUID fromID = e.Sender.AgentId;
+
+            DeliverChatToAvatars(fromPos, regionPos, fromID, fromName, e.Type, ChatSourceType.Agent, message);
+        }
+
+        public void OnChatFromWorld(Object sender, OSChatMessage e)
+        {
+            Scene scene = (Scene) e.Scene;
+
+            // early return if not on public or debug channel
+            if (e.Channel != 0 && e.Channel != DEBUG_CHANNEL) return;
+
+            // Filled in since it's easier than rewriting right now.
+            Vector3 fromPos = e.Position;
+            Vector3 regionPos = new Vector3(scene.RegionInfo.RegionLocX * Constants.RegionSize,
+                                            scene.RegionInfo.RegionLocY * Constants.RegionSize, 0);
+
+            string fromName = e.From;
+            string message = e.Message;
+            UUID fromID = e.SenderUUID;
+
+            if (e.Channel == DEBUG_CHANNEL)
+                e.Type = ChatTypeEnum.DebugChannel;
+
+            DeliverChatToAvatars(fromPos, regionPos, fromID, fromName, e.Type, ChatSourceType.Object, message);
+        }
+
+        protected void DeliverChatToAvatars(Vector3 pos, Vector3 regionPos, UUID uuid, string name,
+                                            ChatTypeEnum chatType, ChatSourceType sourceType, string message)
+        {
+            // iterate over message
+            if (message.Length >= 1000) // libomv limit
+                message = message.Substring(0, 1000);
+
+            foreach (Scene s in m_scenes)
+            {
+                s.ForEachScenePresence(delegate(ScenePresence presence) 
+                                       {
+                                           TrySendChatMessage(presence, pos, regionPos, uuid, name, 
+                                                              chatType, message, sourceType);
+                                       });
+            }
+        }
+
+
+        public void OnChatBroadcast(Object sender, OSChatMessage c)
         {
             // We only want to relay stuff on channel 0 and on the debug channel
             if (c.Channel != 0 && c.Channel != DEBUG_CHANNEL) return;
@@ -153,83 +233,6 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Chat
                 });
         }
 
-        public void OnSimChat(Object sender, OSChatMessage e)
-        {
-            // early return if not on public or debug channel
-            if (e.Channel != 0 && e.Channel != DEBUG_CHANNEL) return;
-
-            ScenePresence avatar = null;
-            Scene scene = (Scene) e.Scene;
-
-            //TODO: Remove the need for this check
-            if (scene == null)
-                scene = m_scenes[0];
-
-            // Filled in since it's easier than rewriting right now.
-            Vector3 fromPos = e.Position;
-            Vector3 regionPos = new Vector3(scene.RegionInfo.RegionLocX * Constants.RegionSize,
-                                                scene.RegionInfo.RegionLocY * Constants.RegionSize, 0);
-
-            string fromName = e.From;
-            string message = e.Message;
-            UUID fromID = e.SenderUUID;
-
-            if (message.Length >= 1000) // libomv limit
-                message = message.Substring(0, 1000);
-
-            if (e.Sender != null)
-            {
-                avatar = scene.GetScenePresence(e.Sender.AgentId);
-            }
-
-            if (avatar != null)
-            {
-                fromPos = avatar.AbsolutePosition;
-                regionPos = new Vector3(scene.RegionInfo.RegionLocX * Constants.RegionSize,
-                                        scene.RegionInfo.RegionLocY * Constants.RegionSize, 0);
-                fromName = avatar.Firstname + " " + avatar.Lastname;
-                fromID = e.Sender.AgentId;
-            }
-
-            if (e.Channel == DEBUG_CHANNEL)
-                e.Type = ChatTypeEnum.DebugChannel;
-
-            // chat works by redistributing every incoming chat
-            // message to each avatar in the scene
-            foreach (Scene s in m_scenes)
-            {
-                s.ForEachScenePresence(
-                    delegate(ScenePresence presence)
-                    {
-                        if (e.Channel == DEBUG_CHANNEL)
-                        {
-                            TrySendChatMessage(presence, fromPos, regionPos,
-                                               fromID, fromName, e.Type,
-                                               message, ChatSourceType.Object);
-                        }
-                        else
-                        {
-                            TrySendChatMessage(presence, fromPos, regionPos,
-                                               fromID, fromName, e.Type,
-                                               message, ChatSourceType.Agent);
-                        }
-                    });
-            }
-        }
-
-        #endregion
-
-        public void OnNewClient(IClientAPI client)
-        {
-            try
-            {
-                client.OnChatFromViewer += OnSimChat;
-            }
-            catch (Exception ex)
-            {
-                m_log.Error("[CHAT]: NewClient exception trap:" + ex.ToString());
-            }
-        }
 
         private void TrySendChatMessage(ScenePresence presence, Vector3 fromPos, Vector3 regionPos,
                                         UUID fromAgentID, string fromName, ChatTypeEnum type,
diff --git a/OpenSim/Region/Environment/Modules/Avatar/Chat/IRCBridgeModule.cs b/OpenSim/Region/Environment/Modules/Avatar/Chat/IRCBridgeModule.cs
index eba65a9..5840cb2 100644
--- a/OpenSim/Region/Environment/Modules/Avatar/Chat/IRCBridgeModule.cs
+++ b/OpenSim/Region/Environment/Modules/Avatar/Chat/IRCBridgeModule.cs
@@ -93,6 +93,7 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Chat
                     m_scenes.Add(scene);
                     scene.EventManager.OnNewClient += OnNewClient;
                     scene.EventManager.OnChatFromWorld += OnSimChat;
+                    scene.EventManager.OnChatFromClient += OnSimChat;
                     scene.EventManager.OnMakeRootAgent += OnMakeRootAgent;
                     scene.EventManager.OnMakeChildAgent += OnMakeChildAgent;
                 }
@@ -236,7 +237,7 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Chat
 
             if (avatar != null)
             {
-                fromName = avatar.Firstname + " " + avatar.Lastname;
+                fromName = avatar.Name;
             }
 
             // Try to reconnect to server if not connected
@@ -277,21 +278,19 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Chat
         {
             try
             {
-                string clientName = String.Format("{0} {1}", client.FirstName, client.LastName);
-
-                client.OnChatFromViewer += OnSimChat;
+                // client.OnChatFromViewer += OnSimChat;
                 client.OnLogout += OnClientLoggedOut;
                 client.OnConnectionClosed += OnClientLoggedOut;
 
-                if (clientName != m_last_new_user)
+                if (client.Name != m_last_new_user)
                 {
                     if ((m_irc.Enabled) && (m_irc.Connected))
                     {
-                        m_log.DebugFormat("[IRC] {0} logging on", clientName);
+                        m_log.DebugFormat("[IRC] {0} logging on", client.Name);
                         m_irc.PrivMsg(m_irc.Nick, "Sim",
-                        String.Format("notices {0} logging on", clientName));
+                        String.Format("notices {0} logging on", client.Name));
                     }
-                    m_last_new_user = clientName;
+                    m_last_new_user = client.Name;
                 }
             }
             catch (Exception ex)
@@ -343,21 +342,20 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Chat
                 {
                     if ((m_irc.Enabled) && (m_irc.Connected))
                     {
-                        string clientName = String.Format("{0} {1}", client.FirstName, client.LastName);
                         // handles simple case. May not work for hundred connecting in per second.
                         // and the NewClients calles getting interleved
                         // but filters out multiple reports
-                        if (clientName != m_last_leaving_user)
+                        if (client.Name != m_last_leaving_user)
                         {
                             Console.WriteLine("Avatar was seen logging out.");
                             //Console.ReadLine();
                             Console.WriteLine();
-                            m_last_leaving_user = clientName;
-                            m_irc.PrivMsg(m_irc.Nick, "Sim", String.Format("notices {0} logging out", clientName));
-                            m_log.InfoFormat("[IRC]: {0} logging out", clientName);
+                            m_last_leaving_user = client.Name;
+                            m_irc.PrivMsg(m_irc.Nick, "Sim", String.Format("notices {0} logging out", client.Name));
+                            m_log.InfoFormat("[IRC]: {0} logging out", client.Name);
                         }
 
-                        if (m_last_new_user == clientName)
+                        if (m_last_new_user == client.Name)
                             m_last_new_user = null;
                     }
                 }
diff --git a/OpenSim/Region/Environment/Modules/Avatar/Concierge/ConciergeModule.cs b/OpenSim/Region/Environment/Modules/Avatar/Concierge/ConciergeModule.cs
index 0c0f553..d9730dd 100644
--- a/OpenSim/Region/Environment/Modules/Avatar/Concierge/ConciergeModule.cs
+++ b/OpenSim/Region/Environment/Modules/Avatar/Concierge/ConciergeModule.cs
@@ -50,7 +50,7 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Concierge
         private int _conciergeChannel = 42;
         private List<Scene> _scenes = new List<Scene>();
         private IConfig _config;
-        private string _whoami = null;
+        private string _whoami = "conferencier";
 
         internal object _syncy = new object();
 
@@ -78,8 +78,12 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Concierge
                 return;
             }
 
-            _conciergeChannel = config.Configs["Concierge"].GetInt("concierge_channel", _conciergeChannel);
-            _whoami = _config.GetString("concierge_name", "conferencier");
+            if (_config != null)
+            {
+                _conciergeChannel = config.Configs["Concierge"].GetInt("concierge_channel", _conciergeChannel);
+                _whoami = _config.GetString("whoami", "conferencier");
+            }
+            _log.InfoFormat("[Concierge] reporting as \"{0}\" to our users", _whoami);
 
             lock (_syncy)
             {
@@ -88,8 +92,9 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Concierge
                     _scenes.Add(scene);
                     // subscribe to NewClient events
                     scene.EventManager.OnNewClient += OnNewClient;
+                    scene.EventManager.OnNewClient += OnNewClient;
 
-                    // subscribe to *Chat events
+                    // subscribe to *Chat events and FilterChat* events
                     scene.EventManager.OnChatFromWorld += OnSimChat;
                     scene.EventManager.OnChatBroadcast += OnSimBroadcast;
 
@@ -124,18 +129,7 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Concierge
         #region ISimChat Members
         public void OnSimBroadcast(Object sender, OSChatMessage c)
         {
-            if (_conciergeChannel == c.Channel)
-            { 
-                // concierge request: interpret
-                return;
-            }
-
-            if (0 == c.Channel || DEBUG_CHANNEL == c.Channel)
-            {
-                // log as avatar/prim chat
-                return;
-            }
-
+            // log to buffer?
             return;
         }
 
@@ -149,6 +143,11 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Concierge
 
             if (0 == c.Channel || DEBUG_CHANNEL == c.Channel)
             {
+                // if (_amplify)
+                // {
+                    
+                // }
+
                 // log as avatar/prim chat
                 return;
             }
@@ -161,14 +160,20 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Concierge
 
         public void OnNewClient(IClientAPI client)
         {
-            try
-            {
-                client.OnChatFromViewer += OnSimChat;
-            }
-            catch (Exception ex)
-            {
-                _log.Error("[Concierge]: NewClient exception trap:" + ex.ToString());
-            }
+            client.OnLogout += OnClientLoggedOut;
+            client.OnConnectionClosed += OnClientLoggedOut;
+
+            _log.DebugFormat("[Concierge] {0} logs on to {1}", client.Name, client.Scene.RegionInfo.RegionName);
+            AnnounceToAgentsRegion(client, String.Format("{0} logs on to {1}", client.Name, client.Scene.RegionInfo.RegionName));
+        }
+
+        public void OnClientLoggedOut(IClientAPI client)
+        {
+            client.OnLogout -= OnClientLoggedOut;
+            client.OnConnectionClosed -= OnClientLoggedOut;
+            
+            _log.DebugFormat("[Concierge] {0} logs off from {1}", client.Name, client.Scene.RegionInfo.RegionName);
+            AnnounceToAgentsRegion(client, String.Format("{0} logs off from {1}", client.Name, client.Scene.RegionInfo.RegionName));
         }
 
 
@@ -188,13 +193,22 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Concierge
 
         public void ClientLoggedOut(IClientAPI client)
         {
-            string clientName = String.Format("{0} {1}", client.FirstName, client.LastName);
-            _log.DebugFormat("[CONCIERGE] {0} logging off.", clientName);
+            _log.DebugFormat("[Concierge] {0} logs out of {1}", client.Name, client.Scene.RegionInfo.RegionName);
+            AnnounceToAgentsRegion(client, String.Format("{0} logs out of {1}", client.Name, client.Scene.RegionInfo.RegionName));
         }
 
 
         static private Vector3 posOfGod = new Vector3(128, 128, 9999);
 
+        protected void AnnounceToAgentsRegion(IClientAPI client, string msg)
+        {
+            ScenePresence agent = null;
+            if ((client.Scene is Scene) && (client.Scene as Scene).TryGetAvatar(client.AgentId, out agent)) 
+                AnnounceToAgentsRegion(agent, msg);
+            else
+                _log.DebugFormat("[Concierge] could not find an agent for client {0}", client.Name);
+        }
+
         protected void AnnounceToAgentsRegion(ScenePresence scenePresence, string msg)
         {
             OSChatMessage c = new OSChatMessage();