this is step 2 of 2 of the OpenSim.Region.Environment refactor.

NOTHING has been deleted or moved off to forge at this point.  what
has happened is that OpenSim.Region.Environment.Modules has been split
in two:

- OpenSim.Region.CoreModules: all those modules that are either
  directly or indirectly referenced from  other  OpenSim packages, or
  that provide functionality that the OpenSim developer community
  considers core functionality:

      CoreModules/Agent/AssetTransaction
      CoreModules/Agent/Capabilities
      CoreModules/Agent/TextureDownload
      CoreModules/Agent/TextureSender
      CoreModules/Agent/TextureSender/Tests
      CoreModules/Agent/Xfer
      CoreModules/Avatar/AvatarFactory
      CoreModules/Avatar/Chat/ChatModule
      CoreModules/Avatar/Combat
      CoreModules/Avatar/Currency/SampleMoney
      CoreModules/Avatar/Dialog
      CoreModules/Avatar/Friends
      CoreModules/Avatar/Gestures
      CoreModules/Avatar/Groups
      CoreModules/Avatar/InstantMessage
      CoreModules/Avatar/Inventory
      CoreModules/Avatar/Inventory/Archiver
      CoreModules/Avatar/Inventory/Transfer
      CoreModules/Avatar/Lure
      CoreModules/Avatar/ObjectCaps
      CoreModules/Avatar/Profiles
      CoreModules/Communications/Local
      CoreModules/Communications/REST
      CoreModules/Framework/EventQueue
      CoreModules/Framework/InterfaceCommander
      CoreModules/Hypergrid
      CoreModules/InterGrid
      CoreModules/Scripting/DynamicTexture
      CoreModules/Scripting/EMailModules
      CoreModules/Scripting/HttpRequest
      CoreModules/Scripting/LoadImageURL
      CoreModules/Scripting/VectorRender
      CoreModules/Scripting/WorldComm
      CoreModules/Scripting/XMLRPC
      CoreModules/World/Archiver
      CoreModules/World/Archiver/Tests
      CoreModules/World/Estate
      CoreModules/World/Land
      CoreModules/World/Permissions
      CoreModules/World/Serialiser
      CoreModules/World/Sound
      CoreModules/World/Sun
      CoreModules/World/Terrain
      CoreModules/World/Terrain/DefaultEffects
      CoreModules/World/Terrain/DefaultEffects/bin
      CoreModules/World/Terrain/DefaultEffects/bin/Debug
      CoreModules/World/Terrain/Effects
      CoreModules/World/Terrain/FileLoaders
      CoreModules/World/Terrain/FloodBrushes
      CoreModules/World/Terrain/PaintBrushes
      CoreModules/World/Terrain/Tests
      CoreModules/World/Vegetation
      CoreModules/World/Wind
      CoreModules/World/WorldMap

- OpenSim.Region.OptionalModules: all those modules that are not core
  modules:

      OptionalModules/Avatar/Chat/IRC-stuff
      OptionalModules/Avatar/Concierge
      OptionalModules/Avatar/Voice/AsterixVoice
      OptionalModules/Avatar/Voice/SIPVoice
      OptionalModules/ContentManagementSystem
      OptionalModules/Grid/Interregion
      OptionalModules/Python
      OptionalModules/SvnSerialiser
      OptionalModules/World/NPC
      OptionalModules/World/TreePopulator

1 files changed, 424 insertions, 0 deletions

diff --git a/OpenSim/Region/OptionalModules/Avatar/Chat/RegionState.cs b/OpenSim/Region/OptionalModules/Avatar/Chat/RegionState.cs
new file mode 100644
index 0000000..6733120
--- /dev/null
+++ b/OpenSim/Region/OptionalModules/Avatar/Chat/RegionState.cs
@@ -0,0 +1,424 @@
+/*
+ * 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 OpenSim 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.Reflection;
+using System.Text.RegularExpressions;
+using log4net;
+using Nini.Config;
+using OpenSim.Framework;
+using OpenSim.Region.Framework.Interfaces;
+using OpenSim.Region.Framework.Scenes;
+
+namespace OpenSim.Region.OptionalModules.Avatar.Chat
+{
+    //    An instance of this class exists for every active region
+
+    internal class RegionState
+    {
+
+        private static readonly ILog m_log =
+            LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
+        private static readonly OpenMetaverse.Vector3 CenterOfRegion = new OpenMetaverse.Vector3(128, 128, 20);
+        private const  int DEBUG_CHANNEL = 2147483647;
+
+        private static int _idk_         = 0;
+
+        // Runtime variables; these values are assigned when the
+        // IrcState is created and remain constant thereafter.
+
+        internal string Region               = String.Empty;
+        internal string Host                 = String.Empty;
+        internal string LocX                 = String.Empty;
+        internal string LocY                 = String.Empty;
+        internal string MA1                  = String.Empty;
+        internal string MA2                  = String.Empty;
+        internal string IDK                  = String.Empty;
+
+        // System values - used only be the IRC classes themselves
+
+        internal ChannelState cs             = null; // associated IRC configuration
+        internal Scene scene                 = null; // associated scene
+        internal IConfig config              = null; // configuration file reference
+        internal bool enabled                = true; 
+ 
+        // This list is used to keep track of who is here, and by
+        // implication, who is not.
+
+        internal List<IClientAPI> clients    = new List<IClientAPI>();
+
+        // Setup runtime variable values
+
+        public RegionState(Scene p_scene, IConfig p_config)
+        {
+
+            scene  = p_scene;
+            config = p_config;
+
+            Region = scene.RegionInfo.RegionName;
+            Host   = scene.RegionInfo.ExternalHostName;
+            LocX   = Convert.ToString(scene.RegionInfo.RegionLocX);
+            LocY   = Convert.ToString(scene.RegionInfo.RegionLocY);
+            MA1    = scene.RegionInfo.MasterAvatarFirstName;
+            MA2    = scene.RegionInfo.MasterAvatarLastName;
+            IDK    = Convert.ToString(_idk_++);
+
+            // OpenChannel conditionally establishes a connection to the
+            // IRC server. The request will either succeed, or it will
+            // throw an exception.
+
+            ChannelState.OpenChannel(this, config);
+
+            // Connect channel to world events
+
+            scene.EventManager.OnChatFromWorld  += OnSimChat;
+            scene.EventManager.OnChatFromClient += OnSimChat;
+            scene.EventManager.OnMakeRootAgent  += OnMakeRootAgent;
+            scene.EventManager.OnMakeChildAgent += OnMakeChildAgent;
+
+            m_log.InfoFormat("[IRC-Region {0}] Initialization complete", Region);
+
+        }
+
+        // Auto cleanup when abandoned
+
+        ~RegionState()
+        {
+          if (cs != null)
+              cs.RemoveRegion(this);
+        }
+
+        // Called by PostInitialize after all regions have been created
+
+        public void Open()
+        {
+            cs.Open(this);
+            enabled = true;
+        }
+
+        // Called by IRCBridgeModule.Close immediately prior to unload
+        // of the module for this region. This happens when the region
+        // is being removed or the server is terminating. The IRC
+        // BridgeModule will remove the region from the region list
+        // when control returns.
+
+        public void Close()
+        {
+            enabled = false;
+            cs.Close(this);
+        }
+
+        // The agent has disconnected, cleanup associated resources
+
+        private void OnClientLoggedOut(IClientAPI client)
+        {
+            try
+            {
+                if (clients.Contains(client))
+                {
+                    if (enabled && (cs.irc.Enabled) && (cs.irc.Connected) && (cs.ClientReporting)) 
+                    {
+                        m_log.InfoFormat("[IRC-Region {0}]: {1} has left", Region, client.Name);
+                        cs.irc.PrivMsg(cs.NoticeMessageFormat, cs.irc.Nick, Region, String.Format("{0} has left", client.Name));
+                    }
+                    client.OnLogout           -= OnClientLoggedOut;
+                    client.OnConnectionClosed -= OnClientLoggedOut;
+                    clients.Remove(client);
+                }
+            }
+            catch (Exception ex)
+            {
+                m_log.ErrorFormat("[IRC-Region {0}]: ClientLoggedOut exception: {1}", Region, ex.Message);
+                m_log.Debug(ex);
+            }
+        }
+
+        // This event indicates that the agent has left the building. We should treat that the same
+        // as if the agent has logged out (we don't want cross-region noise - or do we?)
+
+        private void OnMakeChildAgent(ScenePresence presence)
+        {
+
+            IClientAPI client = presence.ControllingClient;
+
+            try
+            {
+                if (clients.Contains(client))
+                {
+                    if (enabled && (cs.irc.Enabled) && (cs.irc.Connected) && (cs.ClientReporting)) 
+                    {
+                        string clientName = String.Format("{0} {1}", presence.Firstname, presence.Lastname);
+                        m_log.DebugFormat("[IRC-Region {0}] {1} has left", Region, clientName);
+                        cs.irc.PrivMsg(cs.NoticeMessageFormat, cs.irc.Nick, Region, String.Format("{0} has left", clientName));
+                    }
+                    client.OnLogout           -= OnClientLoggedOut;
+                    client.OnConnectionClosed -= OnClientLoggedOut;
+                    clients.Remove(client);
+                }
+            }
+            catch (Exception ex)
+            {
+                m_log.ErrorFormat("[IRC-Region {0}]: MakeChildAgent exception: {1}", Region, ex.Message);
+                m_log.Debug(ex);
+            }
+
+        }
+
+        // An agent has entered the region (from another region). Add the client to the locally
+        // known clients list
+
+        private void OnMakeRootAgent(ScenePresence presence)
+        {
+
+            IClientAPI client = presence.ControllingClient;
+
+            try
+            {
+                if (!clients.Contains(client))
+                {
+                    client.OnLogout           += OnClientLoggedOut;
+                    client.OnConnectionClosed += OnClientLoggedOut;
+                    clients.Add(client);
+                    if (enabled && (cs.irc.Enabled) && (cs.irc.Connected) && (cs.ClientReporting))
+                    {
+                        string clientName = String.Format("{0} {1}", presence.Firstname, presence.Lastname);
+                        m_log.DebugFormat("[IRC-Region {0}] {1} has arrived", Region, clientName);
+                        cs.irc.PrivMsg(cs.NoticeMessageFormat, cs.irc.Nick, Region, String.Format("{0} has arrived", clientName));
+                    }
+                }
+            }
+            catch (Exception ex)
+            {
+                m_log.ErrorFormat("[IRC-Region {0}]: MakeRootAgent exception: {1}", Region, ex.Message);
+                m_log.Debug(ex);
+            }
+
+        }
+
+        // This handler detects chat events int he virtual world.
+
+        public void OnSimChat(Object sender, OSChatMessage msg)
+        {
+
+            // early return if this comes from the IRC forwarder
+
+            if (cs.irc.Equals(sender)) return;
+
+            // early return if nothing to forward
+
+            if (msg.Message.Length == 0) return;
+
+            // check for commands coming from avatars or in-world
+            // object (if commands are enabled)
+
+            if (cs.CommandsEnabled && msg.Channel == cs.CommandChannel)
+            {
+
+                m_log.DebugFormat("[IRC-Region {0}] command on channel {1}: {2}", Region, msg.Channel, msg.Message);
+
+                string[] messages = msg.Message.Split(' ');
+                string command = messages[0].ToLower();
+
+                try
+                {
+                    switch (command)
+                    {
+
+                        // These commands potentially require a change in the
+                        // underlying ChannelState.
+
+                        case "server":
+                            cs.Close(this);
+                            cs = cs.UpdateServer(this, messages[1]);
+                            cs.Open(this);
+                            break;
+                        case "port":
+                            cs.Close(this);
+                            cs = cs.UpdatePort(this, messages[1]);
+                            cs.Open(this);
+                            break;
+                        case "channel":
+                            cs.Close(this);
+                            cs = cs.UpdateChannel(this, messages[1]);
+                            cs.Open(this);
+                            break;
+                        case "nick":
+                            cs.Close(this);
+                            cs = cs.UpdateNickname(this, messages[1]);
+                            cs.Open(this);
+                            break;
+
+                        // These may also (but are less likely) to require a
+                        // change in ChannelState.
+
+                        case "client-reporting":
+                            cs = cs.UpdateClientReporting(this, messages[1]);
+                            break;
+                        case "in-channel":
+                            cs = cs.UpdateRelayIn(this, messages[1]);
+                            break;
+                        case "out-channel":
+                            cs = cs.UpdateRelayOut(this, messages[1]);
+                            break;
+
+                        // These are all taken to be temporary changes in state
+                        // so the underlying connector remains intact. But note
+                        // that with regions sharing a connector, there could
+                        // be interference.
+
+                        case "close":
+                            enabled = false;
+                            cs.Close(this);
+                            break;
+
+                        case "connect":
+                            enabled = true;
+                            cs.Open(this);
+                            break;
+
+                        case "reconnect":
+                            enabled = true;
+                            cs.Close(this);
+                            cs.Open(this);
+                            break;
+
+                        // This one is harmless as far as we can judge from here.
+                        // If it is not, then the complaints will eventually make
+                        // that evident.
+
+                        default:
+                            m_log.DebugFormat("[IRC-Region {0}] Forwarding unrecognized command to IRC : {1}", 
+                                            Region, msg.Message);
+                            cs.irc.Send(msg.Message);
+                            break;
+                    }
+                }
+                catch (Exception ex)
+                { 
+                    m_log.WarnFormat("[IRC-Region {0}] error processing in-world command channel input: {1}",
+                                    Region, ex.Message);
+                    m_log.Debug(ex);
+                }
+
+                return;
+
+            }
+
+            // The command channel remains enabled, even if we have otherwise disabled the IRC
+            // interface.
+
+            if (!enabled)
+                return;
+
+            // drop messages unless they are on a valid in-world
+            // channel as configured in the ChannelState
+
+            if (!cs.ValidInWorldChannels.Contains(msg.Channel))
+            {
+                m_log.DebugFormat("[IRC-Region {0}] dropping message {1} on channel {2}", Region, msg, msg.Channel);
+                return;
+            }                
+
+            ScenePresence avatar = null;
+            string fromName = msg.From;
+
+            if (msg.Sender != null)
+            {
+                avatar = scene.GetScenePresence(msg.Sender.AgentId);
+                if (avatar != null) fromName = avatar.Name;
+            }
+
+            if (!cs.irc.Connected)
+            {
+                m_log.WarnFormat("[IRC-Region {0}] IRCConnector not connected: dropping message from {1}", Region, fromName);
+                return;
+            }
+
+            m_log.DebugFormat("[IRC-Region {0}] heard on channel {1} : {2}", Region, msg.Channel, msg.Message);
+
+            if (null != avatar && cs.RelayChat && (msg.Channel == 0 || msg.Channel == DEBUG_CHANNEL)) 
+            {
+                string txt = msg.Message;
+                if (txt.StartsWith("/me "))
+                    txt = String.Format("{0} {1}", fromName, msg.Message.Substring(4));
+
+                cs.irc.PrivMsg(cs.PrivateMessageFormat, fromName, Region, txt);
+                return;
+            }
+
+            if (null == avatar && cs.RelayPrivateChannels && null != cs.AccessPassword && 
+                msg.Channel == cs.RelayChannelOut)
+            {
+                Match m = cs.AccessPasswordRegex.Match(msg.Message);
+                if (null != m)
+                {
+                    m_log.DebugFormat("[IRC] relaying message from {0}: {1}", m.Groups["avatar"].ToString(), 
+                                      m.Groups["message"].ToString());
+                    cs.irc.PrivMsg(cs.PrivateMessageFormat, m.Groups["avatar"].ToString(),
+                                   scene.RegionInfo.RegionName, m.Groups["message"].ToString());
+                }
+            }
+        }
+
+        // This method gives the region an opportunity to interfere with 
+        // message delivery. For now we just enforce the enable/disable
+        // flag.
+
+        internal void OSChat(Object irc, OSChatMessage msg)
+        {
+            if (enabled)
+            {
+                // m_log.DebugFormat("[IRC-OSCHAT] Region {0} being sent message", region.Region);
+                msg.Scene = scene;
+                scene.EventManager.TriggerOnChatBroadcast(irc, msg);
+            }
+        }
+
+        // This supports any local message traffic that might be needed in 
+        // support of command processing. At present there is none.
+
+        internal void LocalChat(string msg)
+        {
+            if (enabled)
+            {
+                OSChatMessage osm = new OSChatMessage();
+                osm.From = "IRC Agent";
+                osm.Message = msg;
+                osm.Type = ChatTypeEnum.Region;
+                osm.Position = CenterOfRegion;
+                osm.Sender = null;
+                osm.SenderUUID = OpenMetaverse.UUID.Zero; // Hmph! Still?
+                osm.Channel = 0;
+                OSChat(this, osm);
+            }
+        }
+
+    }
+
+}