7 files changed, 418 insertions, 228 deletions

diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/AsyncCommandManager.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/AsyncCommandManager.cs
index 6879ebb..1e19032 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/AsyncCommandManager.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/AsyncCommandManager.cs
@@ -37,6 +37,8 @@ using OpenSim.Region.ScriptEngine.Interfaces;
 using OpenSim.Region.ScriptEngine.Shared;
 using OpenSim.Region.ScriptEngine.Shared.Api.Plugins;
 using Timer=OpenSim.Region.ScriptEngine.Shared.Api.Plugins.Timer;
+using System.Reflection;
+using log4net;
 
 namespace OpenSim.Region.ScriptEngine.Shared.Api
 {
@@ -45,15 +47,24 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
     /// </summary>
     public class AsyncCommandManager
     {
+        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
         private static Thread cmdHandlerThread;
         private static int cmdHandlerThreadCycleSleepms;
 
-        private static List<IScene> m_Scenes = new List<IScene>();
+        /// <summary>
+        /// Lock for reading/writing static components of AsyncCommandManager.
+        /// </summary>
+        /// <remarks>
+        /// This lock exists so that multiple threads from different engines and/or different copies of the same engine
+        /// are prevented from running non-thread safe code (e.g. read/write of lists) concurrently.
+        /// </remarks>
+        private static object staticLock = new object();
+
         private static List<IScriptEngine> m_ScriptEngines =
                 new List<IScriptEngine>();
 
         public IScriptEngine m_ScriptEngine;
-        private IScene m_Scene;
 
         private static Dictionary<IScriptEngine, Dataserver> m_Dataserver =
                 new Dictionary<IScriptEngine, Dataserver>();
@@ -70,67 +81,99 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         public Dataserver DataserverPlugin
         {
-            get { return m_Dataserver[m_ScriptEngine]; }
+            get 
+            { 
+                lock (staticLock)
+                    return m_Dataserver[m_ScriptEngine]; 
+            }
         }
 
         public Timer TimerPlugin
         {
-            get { return m_Timer[m_ScriptEngine]; }
+            get 
+            { 
+                lock (staticLock)
+                    return m_Timer[m_ScriptEngine]; 
+            }
         }
 
         public HttpRequest HttpRequestPlugin
         {
-            get { return m_HttpRequest[m_ScriptEngine]; }
+            get 
+            { 
+                lock (staticLock)
+                    return m_HttpRequest[m_ScriptEngine]; 
+            }
         }
 
         public Listener ListenerPlugin
         {
-            get { return m_Listener[m_ScriptEngine]; }
+            get 
+            { 
+                lock (staticLock)
+                    return m_Listener[m_ScriptEngine]; 
+            }
         }
 
         public SensorRepeat SensorRepeatPlugin
         {
-            get { return m_SensorRepeat[m_ScriptEngine]; }
+            get 
+            { 
+                lock (staticLock)
+                    return m_SensorRepeat[m_ScriptEngine]; 
+            }
         }
 
         public XmlRequest XmlRequestPlugin
         {
-            get { return m_XmlRequest[m_ScriptEngine]; }
+            get 
+            { 
+                lock (staticLock)
+                    return m_XmlRequest[m_ScriptEngine]; 
+            }
         }
 
         public IScriptEngine[] ScriptEngines
         {
-            get { return m_ScriptEngines.ToArray(); }
+            get 
+            { 
+                lock (staticLock)
+                    return m_ScriptEngines.ToArray(); 
+            }
         }
 
         public AsyncCommandManager(IScriptEngine _ScriptEngine)
         {
             m_ScriptEngine = _ScriptEngine;
-            m_Scene = m_ScriptEngine.World;
-
-            if (m_Scenes.Count == 0)
-                ReadConfig();
-
-            if (!m_Scenes.Contains(m_Scene))
-                m_Scenes.Add(m_Scene);
-            if (!m_ScriptEngines.Contains(m_ScriptEngine))
-                m_ScriptEngines.Add(m_ScriptEngine);
-
-            // Create instances of all plugins
-            if (!m_Dataserver.ContainsKey(m_ScriptEngine))
-                m_Dataserver[m_ScriptEngine] = new Dataserver(this);
-            if (!m_Timer.ContainsKey(m_ScriptEngine))
-                m_Timer[m_ScriptEngine] = new Timer(this);
-            if (!m_HttpRequest.ContainsKey(m_ScriptEngine))
-                m_HttpRequest[m_ScriptEngine] = new HttpRequest(this);
-            if (!m_Listener.ContainsKey(m_ScriptEngine))
-                m_Listener[m_ScriptEngine] = new Listener(this);
-            if (!m_SensorRepeat.ContainsKey(m_ScriptEngine))
-                m_SensorRepeat[m_ScriptEngine] = new SensorRepeat(this);
-            if (!m_XmlRequest.ContainsKey(m_ScriptEngine))
-                m_XmlRequest[m_ScriptEngine] = new XmlRequest(this);
-
-            StartThread();
+
+            // If there is more than one scene in the simulator or multiple script engines are used on the same region
+            // then more than one thread could arrive at this block of code simultaneously.  However, it cannot be
+            // executed concurrently both because concurrent list operations are not thread-safe and because of other
+            // race conditions such as the later check of cmdHandlerThread == null.
+            lock (staticLock)
+            {
+                if (m_ScriptEngines.Count == 0)
+                    ReadConfig();
+
+                if (!m_ScriptEngines.Contains(m_ScriptEngine))
+                    m_ScriptEngines.Add(m_ScriptEngine);
+
+                // Create instances of all plugins
+                if (!m_Dataserver.ContainsKey(m_ScriptEngine))
+                    m_Dataserver[m_ScriptEngine] = new Dataserver(this);
+                if (!m_Timer.ContainsKey(m_ScriptEngine))
+                    m_Timer[m_ScriptEngine] = new Timer(this);
+                if (!m_HttpRequest.ContainsKey(m_ScriptEngine))
+                    m_HttpRequest[m_ScriptEngine] = new HttpRequest(this);
+                if (!m_Listener.ContainsKey(m_ScriptEngine))
+                    m_Listener[m_ScriptEngine] = new Listener(this);
+                if (!m_SensorRepeat.ContainsKey(m_ScriptEngine))
+                    m_SensorRepeat[m_ScriptEngine] = new SensorRepeat(this);
+                if (!m_XmlRequest.ContainsKey(m_ScriptEngine))
+                    m_XmlRequest[m_ScriptEngine] = new XmlRequest(this);
+
+                StartThread();
+            }
         }
 
         private static void StartThread()
@@ -179,42 +222,43 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             {
                 try
                 {
-                    while (true)
-                    {
-                        Thread.Sleep(cmdHandlerThreadCycleSleepms);
+                    Thread.Sleep(cmdHandlerThreadCycleSleepms);
 
-                        DoOneCmdHandlerPass();
+                    DoOneCmdHandlerPass();
 
-                        Watchdog.UpdateThread();
-                    }
+                    Watchdog.UpdateThread();
                 }
-                catch
+                catch (Exception e)
                 {
+                    m_log.Error("[ASYNC COMMAND MANAGER]: Exception in command handler pass: ", e);
                 }
             }
         }
 
         private static void DoOneCmdHandlerPass()
         {
-            // Check HttpRequests
-            m_HttpRequest[m_ScriptEngines[0]].CheckHttpRequests();
+            lock (staticLock)
+            {
+                // Check HttpRequests
+                m_HttpRequest[m_ScriptEngines[0]].CheckHttpRequests();
 
-            // Check XMLRPCRequests
-            m_XmlRequest[m_ScriptEngines[0]].CheckXMLRPCRequests();
+                // Check XMLRPCRequests
+                m_XmlRequest[m_ScriptEngines[0]].CheckXMLRPCRequests();
 
-            foreach (IScriptEngine s in m_ScriptEngines)
-            {
-                // Check Listeners
-                m_Listener[s].CheckListeners();
+                foreach (IScriptEngine s in m_ScriptEngines)
+                {
+                    // Check Listeners
+                    m_Listener[s].CheckListeners();
 
-                // Check timers
-                m_Timer[s].CheckTimerEvents();
+                    // Check timers
+                    m_Timer[s].CheckTimerEvents();
 
-                // Check Sensors
-                m_SensorRepeat[s].CheckSenseRepeaterEvents();
+                    // Check Sensors
+                    m_SensorRepeat[s].CheckSenseRepeaterEvents();
 
-                // Check dataserver
-                m_Dataserver[s].ExpireRequests();
+                    // Check dataserver
+                    m_Dataserver[s].ExpireRequests();
+                }
             }
         }
 
@@ -226,31 +270,35 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public static void RemoveScript(IScriptEngine engine, uint localID, UUID itemID)
         {
             // Remove a specific script
+//            m_log.DebugFormat("[ASYNC COMMAND MANAGER]: Removing facilities for script {0}", itemID);
 
-            // Remove dataserver events
-            m_Dataserver[engine].RemoveEvents(localID, itemID);
+            lock (staticLock)
+            {
+                // Remove dataserver events
+                m_Dataserver[engine].RemoveEvents(localID, itemID);
 
-            // Remove from: Timers
-            m_Timer[engine].UnSetTimerEvents(localID, itemID);
+                // Remove from: Timers
+                m_Timer[engine].UnSetTimerEvents(localID, itemID);
 
-            // Remove from: HttpRequest
-            IHttpRequestModule iHttpReq = engine.World.RequestModuleInterface<IHttpRequestModule>();
-            if (iHttpReq != null)
-                iHttpReq.StopHttpRequest(localID, itemID);
+                // Remove from: HttpRequest
+                IHttpRequestModule iHttpReq = engine.World.RequestModuleInterface<IHttpRequestModule>();
+                if (iHttpReq != null)
+                    iHttpReq.StopHttpRequest(localID, itemID);
 
-            IWorldComm comms = engine.World.RequestModuleInterface<IWorldComm>();
-            if (comms != null)
-                comms.DeleteListener(itemID);
+                IWorldComm comms = engine.World.RequestModuleInterface<IWorldComm>();
+                if (comms != null)
+                    comms.DeleteListener(itemID);
 
-            IXMLRPC xmlrpc = engine.World.RequestModuleInterface<IXMLRPC>();
-            if (xmlrpc != null)
-            {
-                xmlrpc.DeleteChannels(itemID);
-                xmlrpc.CancelSRDRequests(itemID);
-            }
+                IXMLRPC xmlrpc = engine.World.RequestModuleInterface<IXMLRPC>();
+                if (xmlrpc != null)
+                {
+                    xmlrpc.DeleteChannels(itemID);
+                    xmlrpc.CancelSRDRequests(itemID);
+                }
 
-            // Remove Sensors
-            m_SensorRepeat[engine].UnSetSenseRepeaterEvents(localID, itemID);
+                // Remove Sensors
+                m_SensorRepeat[engine].UnSetSenseRepeaterEvents(localID, itemID);
+            }
         }
 
         /// <summary>
@@ -260,10 +308,13 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         /// <returns></returns>
         public static SensorRepeat GetSensorRepeatPlugin(IScriptEngine engine)
         {
-            if (m_SensorRepeat.ContainsKey(engine))
-                return m_SensorRepeat[engine];
-            else
-                return null;
+            lock (staticLock)
+            {
+                if (m_SensorRepeat.ContainsKey(engine))
+                    return m_SensorRepeat[engine];
+                else
+                    return null;
+            }
         }
 
         /// <summary>
@@ -273,10 +324,13 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         /// <returns></returns>
         public static Dataserver GetDataserverPlugin(IScriptEngine engine)
         {
-            if (m_Dataserver.ContainsKey(engine))
-                return m_Dataserver[engine];
-            else
-                return null;
+            lock (staticLock)
+            {
+                if (m_Dataserver.ContainsKey(engine))
+                    return m_Dataserver[engine];
+                else
+                    return null;
+            }
         }
 
         /// <summary>
@@ -286,10 +340,13 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         /// <returns></returns>
         public static Timer GetTimerPlugin(IScriptEngine engine)
         {
-            if (m_Timer.ContainsKey(engine))
-                return m_Timer[engine];
-            else
-                return null;
+            lock (staticLock)
+            {
+                if (m_Timer.ContainsKey(engine))
+                    return m_Timer[engine];
+                else
+                    return null;
+            }
         }
 
         /// <summary>
@@ -299,10 +356,13 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         /// <returns></returns>
         public static Listener GetListenerPlugin(IScriptEngine engine)
         {
-            if (m_Listener.ContainsKey(engine))
-                return m_Listener[engine];
-            else
-                return null;
+            lock (staticLock)
+            {
+                if (m_Listener.ContainsKey(engine))
+                    return m_Listener[engine];
+                else
+                    return null;
+            }
         }
 
         public static void StateChange(IScriptEngine engine, uint localID, UUID itemID)
@@ -332,28 +392,31 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         {
             List<Object> data = new List<Object>();
 
-            Object[] listeners = m_Listener[engine].GetSerializationData(itemID);
-            if (listeners.Length > 0)
+            lock (staticLock)
             {
-                data.Add("listener");
-                data.Add(listeners.Length);
-                data.AddRange(listeners);
-            }
+                Object[] listeners = m_Listener[engine].GetSerializationData(itemID);
+                if (listeners.Length > 0)
+                {
+                    data.Add("listener");
+                    data.Add(listeners.Length);
+                    data.AddRange(listeners);
+                }
 
-            Object[] timers=m_Timer[engine].GetSerializationData(itemID);
-            if (timers.Length > 0)
-            {
-                data.Add("timer");
-                data.Add(timers.Length);
-                data.AddRange(timers);
-            }
+                Object[] timers=m_Timer[engine].GetSerializationData(itemID);
+                if (timers.Length > 0)
+                {
+                    data.Add("timer");
+                    data.Add(timers.Length);
+                    data.AddRange(timers);
+                }
 
-            Object[] sensors = m_SensorRepeat[engine].GetSerializationData(itemID);
-            if (sensors.Length > 0)
-            {
-                data.Add("sensor");
-                data.Add(sensors.Length);
-                data.AddRange(sensors);
+                Object[] sensors = m_SensorRepeat[engine].GetSerializationData(itemID);
+                if (sensors.Length > 0)
+                {
+                    data.Add("sensor");
+                    data.Add(sensors.Length);
+                    data.AddRange(sensors);
+                }
             }
 
             return data.ToArray();
@@ -378,41 +441,26 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
                     idx+=len;
 
+                    lock (staticLock)
+                    {
                     switch (type)
                     {
-                    case "listener":
-                        m_Listener[engine].CreateFromData(localID, itemID,
-                                                    hostID, item);
-                        break;
-                    case "timer":
-                        m_Timer[engine].CreateFromData(localID, itemID,
-                                                    hostID, item);
-                        break;
-                    case "sensor":
-                        m_SensorRepeat[engine].CreateFromData(localID,
-                                                    itemID, hostID, item);
-                        break;
+                        case "listener":
+                            m_Listener[engine].CreateFromData(localID, itemID,
+                                                        hostID, item);
+                            break;
+                        case "timer":
+                            m_Timer[engine].CreateFromData(localID, itemID,
+                                                        hostID, item);
+                            break;
+                        case "sensor":
+                            m_SensorRepeat[engine].CreateFromData(localID,
+                                                        itemID, hostID, item);
+                            break;
+                        }
                     }
                 }
             }
         }
-
-        #region Check llRemoteData channels
-
-        #endregion
-
-        #region Check llListeners
-
-        #endregion
-
-        /// <summary>
-        /// If set to true then threads and stuff should try to make a graceful exit
-        /// </summary>
-        public bool PleaseShutdown
-        {
-            get { return _PleaseShutdown; }
-            set { _PleaseShutdown = value; }
-        }
-        private bool _PleaseShutdown = false;
     }
 }
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
index 3f0af6d..916d841 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
@@ -1664,6 +1664,75 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             m_host.SetFaceColorAlpha(face, color, null);
         }
 
+        /*
+        public void llSetContentType(LSL_Key id, LSL_Integer type)
+        {
+            m_host.AddScriptLPS(1);
+
+            if (m_UrlModule == null)
+                return;
+
+            // Make sure the content type is text/plain to start with
+            m_UrlModule.HttpContentType(new UUID(id), "text/plain");
+
+            // Is the object owner online and in the region
+            ScenePresence agent = World.GetScenePresence(m_host.ParentGroup.OwnerID);
+            if (agent == null || agent.IsChildAgent)
+                return;  // Fail if the owner is not in the same region
+
+            // Is it the embeded browser?
+            string userAgent = m_UrlModule.GetHttpHeader(new UUID(id), "user-agent");
+            if (userAgent.IndexOf("SecondLife") < 0)
+                return; // Not the embedded browser. Is this check good enough?
+
+            // Use the IP address of the client and check against the request
+            // seperate logins from the same IP will allow all of them to get non-text/plain as long
+            // as the owner is in the region. Same as SL!
+            string logonFromIPAddress = agent.ControllingClient.RemoteEndPoint.Address.ToString();
+            string requestFromIPAddress = m_UrlModule.GetHttpHeader(new UUID(id), "remote_addr");
+            //m_log.Debug("IP from header='" + requestFromIPAddress + "' IP from endpoint='" + logonFromIPAddress + "'");
+            if (requestFromIPAddress == null || requestFromIPAddress.Trim() == "")
+                return;
+            if (logonFromIPAddress == null || logonFromIPAddress.Trim() == "")
+                return;
+
+            // If the request isnt from the same IP address then the request cannot be from the owner
+            if (!requestFromIPAddress.Trim().Equals(logonFromIPAddress.Trim()))
+                return;
+
+            switch (type)
+            {
+                case ScriptBaseClass.CONTENT_TYPE_HTML:
+                    m_UrlModule.HttpContentType(new UUID(id), "text/html");
+                    break;
+                case ScriptBaseClass.CONTENT_TYPE_XML:
+                    m_UrlModule.HttpContentType(new UUID(id), "application/xml");
+                    break;
+                case ScriptBaseClass.CONTENT_TYPE_XHTML:
+                    m_UrlModule.HttpContentType(new UUID(id), "application/xhtml+xml");
+                    break;
+                case ScriptBaseClass.CONTENT_TYPE_ATOM:
+                    m_UrlModule.HttpContentType(new UUID(id), "application/atom+xml");
+                    break;
+                case ScriptBaseClass.CONTENT_TYPE_JSON:
+                    m_UrlModule.HttpContentType(new UUID(id), "application/json");
+                    break;
+                case ScriptBaseClass.CONTENT_TYPE_LLSD:
+                    m_UrlModule.HttpContentType(new UUID(id), "application/llsd+xml");
+                    break;
+                case ScriptBaseClass.CONTENT_TYPE_FORM:
+                    m_UrlModule.HttpContentType(new UUID(id), "application/x-www-form-urlencoded");
+                    break;
+                case ScriptBaseClass.CONTENT_TYPE_RSS:
+                    m_UrlModule.HttpContentType(new UUID(id), "application/rss+xml");
+                    break;
+                default:
+                    m_UrlModule.HttpContentType(new UUID(id), "text/plain");
+                    break;
+            }
+        }
+        */
+
         public void SetTexGen(SceneObjectPart part, int face,int style)
         {
             if (part == null || part.ParentGroup == null || part.ParentGroup.IsDeleted)
@@ -2772,9 +2841,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             // send the sound, once, to all clients in range
             if (m_SoundModule != null)
             {
-                m_SoundModule.SendSound(m_host.UUID,
-                        ScriptUtils.GetAssetIdFromKeyOrItemName(m_host, sound, AssetType.Sound), volume, false, 0,
-                        0, false, false);
+                m_SoundModule.SendSound(
+                    m_host.UUID,
+                    ScriptUtils.GetAssetIdFromKeyOrItemName(m_host, sound, AssetType.Sound), 
+                    volume, false, m_host.SoundQueueing ? (byte)SoundFlags.Queue : (byte)SoundFlags.None,
+                    0, false, false);
             }
         }
 
@@ -3176,46 +3247,41 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 // need the magnitude later
                 // float velmag = (float)Util.GetMagnitude(llvel);
 
-                SceneObjectGroup new_group = World.RezObject(m_host, item, pos, rot, vel, param);
+                List<SceneObjectGroup> new_groups = World.RezObject(m_host, item, pos, rot, vel, param);
 
                 // If either of these are null, then there was an unknown error.
-                if (new_group == null)
+                if (new_groups == null)
                     return;
 
-                // objects rezzed with this method are die_at_edge by default.
-                new_group.RootPart.SetDieAtEdge(true);
-
-                new_group.ResumeScripts();
+                foreach (SceneObjectGroup group in new_groups)
+                {
+                    // objects rezzed with this method are die_at_edge by default.
+                    group.RootPart.SetDieAtEdge(true);
 
-                m_ScriptEngine.PostObjectEvent(m_host.LocalId, new EventParams(
-                        "object_rez", new Object[] {
-                        new LSL_String(
-                        new_group.RootPart.UUID.ToString()) },
-                        new DetectParams[0]));
+                    group.ResumeScripts();
 
-                // do recoil
-                SceneObjectGroup hostgrp = m_host.ParentGroup;
-                if (hostgrp == null)
-                    return;
+                    m_ScriptEngine.PostObjectEvent(m_host.LocalId, new EventParams(
+                            "object_rez", new Object[] {
+                            new LSL_String(
+                            group.RootPart.UUID.ToString()) },
+                            new DetectParams[0]));
 
-                if (hostgrp.IsAttachment) // don't recoil avatars
-                    return;
+                    float groupmass = group.GetMass();
 
-                PhysicsActor pa = new_group.RootPart.PhysActor;
+                    PhysicsActor pa = group.RootPart.PhysActor;
 
-                //Recoil.
-                if (pa != null && pa.IsPhysical && (Vector3)vel != Vector3.Zero)
-                {
-                    float groupmass = new_group.GetMass();
-                    Vector3 recoil = -vel * groupmass * m_recoilScaleFactor;
-                    if (recoil != Vector3.Zero)
+                    //Recoil.
+                    if (pa != null && pa.IsPhysical && (Vector3)vel != Vector3.Zero)
                     {
-                        llApplyImpulse(recoil, 0);
+                        Vector3 recoil = -vel * groupmass * m_recoilScaleFactor;
+                        if (recoil != Vector3.Zero)
+                        {
+                            llApplyImpulse(recoil, 0);
+                        }
                     }
+                    // Variable script delay? (see (http://wiki.secondlife.com/wiki/LSL_Delay)
                 }
-                // Variable script delay? (see (http://wiki.secondlife.com/wiki/LSL_Delay)
                 return;
-
             });
 
             //ScriptSleep((int)((groupmass * velmag) / 10));
@@ -4746,6 +4812,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             UUID av = new UUID();
             if (!UUID.TryParse(agent,out av))
             {
+                LSLError("First parameter to llTextBox needs to be a key");
                 return;
             }
 
@@ -5108,6 +5175,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
             s = Math.Cos(angle * 0.5);
             t = Math.Sin(angle * 0.5); // temp value to avoid 2 more sin() calcs
+            axis =  LSL_Vector.Norm(axis);
             x = axis.x * t;
             y = axis.y * t;
             z = axis.z * t;
@@ -5115,41 +5183,29 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             return new LSL_Rotation(x,y,z,s);
         }
 
-
-        // Xantor 29/apr/2008
-        // converts a Quaternion to X,Y,Z axis rotations
+        /// <summary>
+        /// Returns the axis of rotation for a quaternion
+        /// </summary>
+        /// <returns></returns>
+        /// <param name='rot'></param>
         public LSL_Vector llRot2Axis(LSL_Rotation rot)
         {
             m_host.AddScriptLPS(1);
-            double x,y,z;
 
-            if (rot.s > 1) // normalization needed
-            {
-                double length = Math.Sqrt(rot.x * rot.x + rot.y * rot.y +
-                        rot.z * rot.z + rot.s * rot.s);
-
-                rot.x /= length;
-                rot.y /= length;
-                rot.z /= length;
-                rot.s /= length;
-
-            }
+            if (Math.Abs(rot.s) > 1) // normalization needed
+                rot.Normalize();
 
-            // double angle = 2 * Math.Acos(rot.s);
             double s = Math.Sqrt(1 - rot.s * rot.s);
             if (s < 0.001)
             {
-                x = 1;
-                y = z = 0;
+                return new LSL_Vector(1, 0, 0);
             }
             else
             {
-                x = rot.x / s; // normalise axis
-                y = rot.y / s;
-                z = rot.z / s;
+                double invS = 1.0 / s;
+                if (rot.s < 0) invS = -invS;
+                return new LSL_Vector(rot.x * invS, rot.y * invS, rot.z * invS);
             }
-
-            return new LSL_Vector(x,y,z);
         }
 
 
@@ -5158,18 +5214,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         {
             m_host.AddScriptLPS(1);
 
-            if (rot.s > 1) // normalization needed
-            {
-                double length = Math.Sqrt(rot.x * rot.x + rot.y * rot.y +
-                        rot.z * rot.z + rot.s * rot.s);
-
-                rot.x /= length;
-                rot.y /= length;
-                rot.z /= length;
-                rot.s /= length;
-            }
+            if (Math.Abs(rot.s) > 1) // normalization needed
+                rot.Normalize();
 
             double angle = 2 * Math.Acos(rot.s);
+            if (angle > Math.PI) 
+                angle = 2 * Math.PI - angle;
 
             return angle;
         }
@@ -6687,7 +6737,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             PSYS_SRC_TARGET_KEY = 20,
             PSYS_SRC_OMEGA = 21,
             PSYS_SRC_ANGLE_BEGIN = 22,
-            PSYS_SRC_ANGLE_END = 23
+            PSYS_SRC_ANGLE_END = 23,
+            PSYS_PART_BLEND_FUNC_SOURCE = 24,
+            PSYS_PART_BLEND_FUNC_DEST = 25,
+            PSYS_PART_START_GLOW = 26,
+            PSYS_PART_END_GLOW = 27
         }
 
         internal Primitive.ParticleSystem.ParticleDataFlags ConvertUINTtoFlags(uint flags)
@@ -6713,6 +6767,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             ps.BurstRate = 0.1f;
             ps.PartMaxAge = 10.0f;
             ps.BurstPartCount = 1;
+            ps.BlendFuncSource = ScriptBaseClass.PSYS_PART_BF_SOURCE_ALPHA;
+            ps.BlendFuncDest = ScriptBaseClass.PSYS_PART_BF_ONE_MINUS_SOURCE_ALPHA;
+            ps.PartStartGlow = 0.0f;
+            ps.PartEndGlow = 0.0f;
+
             return ps;
         }
 
@@ -6747,6 +6806,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 LSL_Vector tempv = new LSL_Vector();
 
                 float tempf = 0;
+                int tmpi = 0;
 
                 for (int i = 0; i < rules.Length; i += 2)
                 {
@@ -6805,7 +6865,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                             break;
 
                         case (int)ScriptBaseClass.PSYS_SRC_PATTERN:
-                            int tmpi = (int)rules.GetLSLIntegerItem(i + 1);
+                            tmpi = (int)rules.GetLSLIntegerItem(i + 1);
                             prules.Pattern = (Primitive.ParticleSystem.SourcePattern)tmpi;
                             break;
 
@@ -6825,6 +6885,26 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                             prules.PartFlags &= 0xFFFFFFFD; // Make sure new angle format is off.
                             break;
 
+                        case (int)ScriptBaseClass.PSYS_PART_BLEND_FUNC_SOURCE:
+                            tmpi = (int)rules.GetLSLIntegerItem(i + 1);
+                            prules.BlendFuncSource = (byte)tmpi;
+                            break;
+
+                        case (int)ScriptBaseClass.PSYS_PART_BLEND_FUNC_DEST:
+                            tmpi = (int)rules.GetLSLIntegerItem(i + 1);
+                            prules.BlendFuncDest = (byte)tmpi;
+                            break;
+
+                        case (int)ScriptBaseClass.PSYS_PART_START_GLOW:
+                            tempf = (float)rules.GetLSLFloatItem(i + 1);
+                            prules.PartStartGlow = (float)tempf;
+                            break;
+
+                        case (int)ScriptBaseClass.PSYS_PART_END_GLOW:
+                            tempf = (float)rules.GetLSLFloatItem(i + 1);
+                            prules.PartEndGlow = (float)tempf;
+                            break;
+
                         case (int)ScriptBaseClass.PSYS_SRC_TEXTURE:
                             prules.Texture = ScriptUtils.GetAssetIdFromKeyOrItemName(m_host, rules.GetLSLStringItem(i + 1));
                             break;
@@ -8255,7 +8335,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                                  return null;
 
                              string ph = rules.Data[idx++].ToString();
-                             parentgrp.ScriptSetPhantomStatus(ph.Equals("1"));
+                             part.ParentGroup.ScriptSetPhantomStatus(ph.Equals("1"));
 
                              break;
 
@@ -8308,7 +8388,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                                 return null;
                             string temp = rules.Data[idx++].ToString();
 
-                            parentgrp.ScriptSetTemporaryStatus(temp.Equals("1"));
+                            part.ParentGroup.ScriptSetTemporaryStatus(temp.Equals("1"));
 
                             break;
 
@@ -8846,8 +8926,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             int idx=0;
             while (idx < rules.Length)
             {
-                int code=(int)rules.GetLSLIntegerItem(idx++);
-                int remain=rules.Length-idx;
+                int code = (int)rules.GetLSLIntegerItem(idx++);
+                int remain = rules.Length - idx;
 
                 switch (code)
                 {
@@ -8920,7 +9000,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                                 break;
 
                             case ScriptBaseClass.PRIM_TYPE_SCULPT:
-                                res.Add(Shape.SculptTexture.ToString());
+                                res.Add(new LSL_String(Shape.SculptTexture.ToString()));
                                 res.Add(new LSL_Integer(Shape.SculptType));
                                 break;
 
@@ -9262,7 +9342,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                         ));
                         break;
                     case (int)ScriptBaseClass.PRIM_LINK_TARGET:
-                        if(remain < 3)
+
+                        // TODO: Should be issuing a runtime script warning in this case.
+                        if (remain < 2)
                             return null;
 
                         return rules.GetSublist(idx, -1);
@@ -12673,6 +12755,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public void llSetSoundQueueing(int queue)
         {
             m_host.AddScriptLPS(1);
+
+            if (m_SoundModule != null)
+                m_SoundModule.SetSoundQueueing(m_host.UUID, queue == ScriptBaseClass.TRUE.value);
         }
 
         public void llCollisionSprite(string impact_sprite)
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LS_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LS_Api.cs
index 1d6cb6d..b13a5ae 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LS_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LS_Api.cs
@@ -434,6 +434,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             }
             return wl;
         }
+
         /// <summary>
         /// Set the current Windlight scene
         /// </summary>
@@ -446,13 +447,21 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 LSShoutError("LightShare functions are not enabled.");
                 return 0;
             }
-            if (!World.RegionInfo.EstateSettings.IsEstateManagerOrOwner(m_host.OwnerID) && World.GetScenePresence(m_host.OwnerID).GodLevel < 200)
+
+            if (!World.RegionInfo.EstateSettings.IsEstateManagerOrOwner(m_host.OwnerID))
             {
-                LSShoutError("lsSetWindlightScene can only be used by estate managers or owners.");
-                return 0;
+                ScenePresence sp = World.GetScenePresence(m_host.OwnerID);
+
+                if (sp == null || sp.GodLevel < 200)
+                {
+                    LSShoutError("lsSetWindlightScene can only be used by estate managers or owners.");
+                    return 0;
+                }
             }
+
             int success = 0;
             m_host.AddScriptLPS(1);
+
             if (LightShareModule.EnableWindlight)
             {
                 RegionLightShareData wl = getWindlightProfileFromRules(rules);
@@ -465,8 +474,10 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 LSShoutError("Windlight module is disabled");
                 return 0;
             }
+
             return success;
         }
+
         public void lsClearWindlightScene()
         {
             if (!m_LSFunctionsEnabled)
@@ -474,17 +485,25 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 LSShoutError("LightShare functions are not enabled.");
                 return;
             }
-            if (!World.RegionInfo.EstateSettings.IsEstateManagerOrOwner(m_host.OwnerID) && World.GetScenePresence(m_host.OwnerID).GodLevel < 200)
+
+            if (!World.RegionInfo.EstateSettings.IsEstateManagerOrOwner(m_host.OwnerID))
             {
-                LSShoutError("lsSetWindlightScene can only be used by estate managers or owners.");
-                return;
+                ScenePresence sp = World.GetScenePresence(m_host.OwnerID);
+
+                if (sp == null || sp.GodLevel < 200)
+                {
+                    LSShoutError("lsSetWindlightScene can only be used by estate managers or owners.");
+                    return;
+                }
             }
 
             m_host.ParentGroup.Scene.RegionInfo.WindlightSettings.valid = false;
             if (m_host.ParentGroup.Scene.SimulationDataService != null)
                 m_host.ParentGroup.Scene.SimulationDataService.RemoveRegionWindlightSettings(m_host.ParentGroup.Scene.RegionInfo.RegionID);
+
             m_host.ParentGroup.Scene.EventManager.TriggerOnSaveNewWindlightProfile();
         }
+
         /// <summary>
         /// Set the current Windlight scene to a target avatar
         /// </summary>
@@ -497,13 +516,21 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 LSShoutError("LightShare functions are not enabled.");
                 return 0;
             }
-            if (!World.RegionInfo.EstateSettings.IsEstateManagerOrOwner(m_host.OwnerID) && World.GetScenePresence(m_host.OwnerID).GodLevel < 200)
+
+            if (!World.RegionInfo.EstateSettings.IsEstateManagerOrOwner(m_host.OwnerID))
             {
-                LSShoutError("lsSetWindlightSceneTargeted can only be used by estate managers or owners.");
-                return 0;
+                ScenePresence sp = World.GetScenePresence(m_host.OwnerID);
+
+                if (sp == null || sp.GodLevel < 200)
+                {
+                    LSShoutError("lsSetWindlightSceneTargeted can only be used by estate managers or owners.");
+                    return 0;
+                }
             }
+
             int success = 0;
             m_host.AddScriptLPS(1);
+
             if (LightShareModule.EnableWindlight)
             { 
                 RegionLightShareData wl = getWindlightProfileFromRules(rules);
@@ -515,8 +542,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 LSShoutError("Windlight module is disabled");
                 return 0;
             }
+
             return success;
-        }
-        
+        }        
     }
-}
+}
\ No newline at end of file
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/MOD_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/MOD_Api.cs
index bd776b6..edcdfbc 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/MOD_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/MOD_Api.cs
@@ -319,7 +319,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             
             object[] convertedParms = new object[parms.Length];
             for (int i = 0; i < parms.Length; i++)
-                convertedParms[i] = ConvertFromLSL(parms[i],signature[i], fname);
+                convertedParms[i] = ConvertFromLSL(parms[i], signature[i], fname);
 
             // now call the function, the contract with the function is that it will always return
             // non-null but don't trust it completely
@@ -448,7 +448,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 }
             }
             
-            MODError(String.Format("{1}: parameter type mismatch; expecting {0}",type.Name, fname));
+            MODError(String.Format("{0}: parameter type mismatch; expecting {1}, type(parm)={2}", fname, type.Name, lslparm.GetType()));
             return null;
         }
 
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
index 9c148d1..7081416 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
@@ -3005,6 +3005,29 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             return ret;
         }
 
+        public LSL_Vector osGetRegionSize()
+        {
+            CheckThreatLevel(ThreatLevel.None, "osGetRegionSize");
+            m_host.AddScriptLPS(1);
+
+            bool isMegaregion;
+            IRegionCombinerModule rcMod = World.RequestModuleInterface<IRegionCombinerModule>();
+            if (rcMod != null)
+                isMegaregion = rcMod.IsRootForMegaregion(World.RegionInfo.RegionID);
+            else
+                isMegaregion = false;
+
+            if (isMegaregion)
+            {
+                Vector2 size = rcMod.GetSizeOfMegaregion(World.RegionInfo.RegionID);
+                return new LSL_Vector(size.X, size.Y, Constants.RegionHeight);
+            }
+            else
+            {
+                return new LSL_Vector((float)Constants.RegionSize, (float)Constants.RegionSize, Constants.RegionHeight);
+            }
+        }
+
         public int osGetSimulatorMemory()
         {
             CheckThreatLevel(ThreatLevel.Moderate, "osGetSimulatorMemory");
@@ -3043,7 +3066,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                         sp.ControllingClient.Kick(alert);
 
                     // ...and close on our side
-                    sp.Scene.IncomingCloseAgent(sp.UUID, false);
+                    sp.Scene.CloseAgent(sp.UUID, false);
                 }
             });
         }
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs
index a47e452..181399d 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs
@@ -353,6 +353,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
                 // Position of a sensor in a child prim attached to an avatar
                 // will be still wrong. 
                 ScenePresence avatar = m_CmdManager.m_ScriptEngine.World.GetScenePresence(SensePoint.ParentGroup.AttachedAvatar);
+
+                // Don't proceed if the avatar for this attachment has since been removed from the scene.
+                if (avatar == null)
+                    return sensedEntities;
+
                 fromRegionPos = avatar.AbsolutePosition;
                 q = avatar.Rotation;
             }
@@ -363,7 +368,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
 
             Vector3 ZeroVector = new Vector3(0, 0, 0);
 
-            bool nameSearch = (ts.name != null && ts.name != "");
+            bool nameSearch = !string.IsNullOrEmpty(ts.name);
 
             foreach (EntityBase ent in Entities)
             {
@@ -483,6 +488,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
                 // Position of a sensor in a child prim attached to an avatar
                 // will be still wrong. 
                 ScenePresence avatar = m_CmdManager.m_ScriptEngine.World.GetScenePresence(SensePoint.ParentGroup.AttachedAvatar);
+
+                // Don't proceed if the avatar for this attachment has since been removed from the scene.
                 if (avatar == null)
                     return sensedEntities;
                 fromRegionPos = avatar.AbsolutePosition;
@@ -601,7 +608,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
                     return sensedEntities;
                 senseEntity(sp);
             }
-            else if (ts.name != null && ts.name != "")
+            else if (!string.IsNullOrEmpty(ts.name))
             {
                 ScenePresence sp;
                 // Try lookup by name will return if/when found
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Properties/AssemblyInfo.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Properties/AssemblyInfo.cs
index 6d218a6..9137c69 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Properties/AssemblyInfo.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Properties/AssemblyInfo.cs
@@ -29,5 +29,5 @@ using System.Runtime.InteropServices;
 //      Build Number
 //      Revision
 //
-[assembly: AssemblyVersion("0.7.6.*")]
+[assembly: AssemblyVersion("0.8.0.*")]