Reintroduces the discovery mechanism to use llRequestSimulatorData("", 128)

Causes the dataserver event to return "OpenSim" when running on OpenSim.
Requires ThreatLevel to be "High" or above to function.

OpenSim/Region/ScriptEngine/DotNetEngine/ScriptEngine.cs

@@ -372,5 +372,10 @@ namespace OpenSim.Region.ScriptEngine.DotNetEngine
             controllingClient.SendScriptRunningReply(objectID, itemID,
                     id.Running);
         }
+
+        public IScriptApi GetApi(UUID itemID, string name)
+        {
+            return m_ScriptManager.GetApi(itemID, name);
+        }
     }
 }

OpenSim/Region/ScriptEngine/DotNetEngine/ScriptManager.cs

@@ -619,7 +619,24 @@ namespace OpenSim.Region.ScriptEngine.DotNetEngine
 
             InstanceData id = GetScript(localID, itemID);
 
+            if (id == null)
+                return 0;
+
             return id.StartParam;
         }
+
+        public IScriptApi GetApi(UUID itemID, string name)
+        {
+            uint localID = GetLocalID(itemID);
+
+            InstanceData id = GetScript(localID, itemID);
+            if (id == null)
+                return null;
+
+            if (id.Apis.ContainsKey(name))
+                return id.Apis[name];
+
+            return null;
+        }
     }
 }

OpenSim/Region/ScriptEngine/Interfaces/IEventReceiver.cs

@@ -66,5 +66,6 @@ namespace OpenSim.Region.ScriptEngine.Interfaces
         IConfig Config { get; }
         string ScriptEngineName { get; }
         ILog Log { get; }
+        IScriptApi GetApi(UUID itemID, string name);
     }
 }

OpenSim/Region/ScriptEngine/Interfaces/IScriptEngine.cs

@@ -46,7 +46,5 @@ namespace OpenSim.Region.ScriptEngine.Interfaces
         /// Queue an event for execution
         /// </summary>
         IScriptWorkItem QueueEventHandler(object parms);
-        
-        IScriptApi GetApi(UUID itemID, string name);
     }
 }

OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs

@@ -7182,6 +7182,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         public LSL_String llRequestSimulatorData(string simulator, int data)
         {
+            IOSSL_Api ossl = (IOSSL_Api)m_ScriptEngine.GetApi(m_itemID, "OSSL");
+
             try
             {
                 m_host.AddScriptLPS(1);
@@ -7223,6 +7225,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                         else
                             reply = "UNKNOWN";
                         break;
+                    case 128:
+                        if (ossl != null)
+                            ossl.CheckThreatLevel(ThreatLevel.High, "llRequestSimulatorData");
+                        reply = "OpenSim";
+                        break;
                     default:
                         // ScriptSleep(1000);
                         return UUID.Zero.ToString(); // Raise no event

OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs

@@ -87,18 +87,6 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
     //            modification of user data, or allows the compromise of
     //            sensitive data by design.
 
-    public enum ThreatLevel
-    {
-        None = 0,
-        Nuisance = 1,
-        VeryLow = 2,
-        Low = 3,
-        Moderate = 4,
-        High = 5,
-        VeryHigh = 6,
-        Severe = 7
-    };
-        
     [Serializable]
     public class OSSL_Api : MarshalByRefObject, IOSSL_Api, IScriptApi
     {
@@ -180,7 +168,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             throw new Exception("OSSL Runtime Error: " + msg);
         }
 
-        protected void CheckThreatLevel(ThreatLevel level, string function)
+        public void CheckThreatLevel(ThreatLevel level, string function)
         {
             if (!m_OSFunctionsEnabled)
                 OSSLError(function+": permission denied"); // throws

OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs

@@ -28,8 +28,22 @@ using System.Collections;
 using OpenSim.Region.ScriptEngine.Interfaces;
 namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
 {
+    public enum ThreatLevel
+    {
+        None = 0,
+        Nuisance = 1,
+        VeryLow = 2,
+        Low = 3,
+        Moderate = 4,
+        High = 5,
+        VeryHigh = 6,
+        Severe = 7
+    };
+
     public interface IOSSL_Api
     {
+        void CheckThreatLevel(ThreatLevel level, string function);
+
         //OpenSim functions
         string osSetDynamicTextureURL(string dynamicID, string contentType, string url, string extraParams, int timer);
         string osSetDynamicTextureURLBlend(string dynamicID, string contentType, string url, string extraParams,