Add osForceAttachToAvatar() and osForceDetachFromAvatar()

These behave identically to llAttachToAvatar() and llDetachFromAvatar() except that they do not enforce the PERMISSION_ATTACH check
Intended for use in completely controlled dedicated environments where these checks are more a UI hinderance than a help.
Threat level high.

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

@@ -29,22 +29,21 @@ using System;
 using System.Collections;
 using System.Collections.Generic;
 using System.Reflection;
+using log4net;
 using OpenSim.Region.ScriptEngine.Interfaces;
 
 namespace OpenSim.Region.ScriptEngine.Shared.Api
 {
     public class ApiManager
     {
+//        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
         private Dictionary<string,Type> m_Apis = new Dictionary<string,Type>();
 
         public string[] GetApis()
         {
-            if (m_Apis.Count > 0)
+            if (m_Apis.Count <= 0)
             {
-                List<string> l = new List<string>(m_Apis.Keys);
-                return l.ToArray();
-            }
-
                 Assembly a = Assembly.GetExecutingAssembly();
 
                 Type[] types = a.GetExportedTypes();
@@ -62,9 +61,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                         m_Apis[name] = t;
                     }
                 }
+            }
 
-            List<string> ret = new List<string>(m_Apis.Keys);
+//            m_log.DebugFormat("[API MANAGER]: Found {0} apis", m_Apis.Keys.Count);
-            return ret.ToArray();
+
+            return new List<string>(m_Apis.Keys).ToArray();
         }
 
         public IScriptApi CreateApi(string api)

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

@@ -2994,7 +2994,49 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 m_UrlModule.ReleaseURL(url);
         }
 
-        public void llAttachToAvatar(int attachment)
+        /// <summary>
+        /// Attach the object containing this script to the avatar that owns it.
+        /// </summary>
+        /// <param name='attachment'>The attachment point (e.g. ATTACH_CHEST)</param>
+        /// <returns>true if the attach suceeded, false if it did not</returns>
+        public bool AttachToAvatar(int attachmentPoint)
+        {
+            SceneObjectGroup grp = m_host.ParentGroup;
+            ScenePresence presence = World.GetScenePresence(m_host.OwnerID);
+
+            IAttachmentsModule attachmentsModule = m_ScriptEngine.World.AttachmentsModule;
+
+            if (attachmentsModule != null)
+                return attachmentsModule.AttachObject(presence, grp, (uint)attachmentPoint, false);
+            else
+                return false;
+        }
+
+        /// <summary>
+        /// Detach the object containing this script from the avatar it is attached to.
+        /// </summary>
+        /// <remarks>
+        /// Nothing happens if the object is not attached.
+        /// </remarks>
+        public void DetachFromAvatar()
+        {
+            Util.FireAndForget(DetachWrapper, m_host);
+        }
+
+        private void DetachWrapper(object o)
+        {
+            SceneObjectPart host = (SceneObjectPart)o;
+
+            SceneObjectGroup grp = host.ParentGroup;
+            UUID itemID = grp.FromItemID;
+            ScenePresence presence = World.GetScenePresence(host.OwnerID);
+
+            IAttachmentsModule attachmentsModule = m_ScriptEngine.World.AttachmentsModule;
+            if (attachmentsModule != null)
+                attachmentsModule.DetachSingleAttachmentToInv(presence, itemID);
+        }
+
+        public void llAttachToAvatar(int attachmentPoint)
         {
             m_host.AddScriptLPS(1);
 
@@ -3007,15 +3049,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 return;
 
             if ((item.PermsMask & ScriptBaseClass.PERMISSION_ATTACH) != 0)
-            {
+                AttachToAvatar(attachmentPoint);
-                SceneObjectGroup grp = m_host.ParentGroup;
-
-                ScenePresence presence = World.GetScenePresence(m_host.OwnerID);
-
-                IAttachmentsModule attachmentsModule = m_ScriptEngine.World.AttachmentsModule;
-                if (attachmentsModule != null)
-                    attachmentsModule.AttachObject(presence, grp, (uint)attachment, false);
-            }
         }
 
         public void llDetachFromAvatar()
@@ -3031,24 +3065,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 return;
 
             if ((item.PermsMask & ScriptBaseClass.PERMISSION_ATTACH) != 0)
-            {
+                DetachFromAvatar();
-                IAttachmentsModule attachmentsModule = m_ScriptEngine.World.AttachmentsModule;
-                if (attachmentsModule != null)
-                    Util.FireAndForget(DetachWrapper, m_host);
-            }
-        }
-
-        private void DetachWrapper(object o)
-        {
-            SceneObjectPart host = (SceneObjectPart)o;
-
-            SceneObjectGroup grp = host.ParentGroup;
-            UUID itemID = grp.FromItemID;
-            ScenePresence presence = World.GetScenePresence(host.OwnerID);
-
-            IAttachmentsModule attachmentsModule = m_ScriptEngine.World.AttachmentsModule;
-            if (attachmentsModule != null)
-                attachmentsModule.DetachSingleAttachmentToInv(presence, itemID);
         }
 
         public void llTakeCamera(string avatar)

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

@@ -209,6 +209,14 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             throw new Exception("OSSL Runtime Error: " + msg);
         }
 
+        /// <summary>
+        /// Initialize the LSL interface.
+        /// </summary>
+        /// <remarks>
+        /// FIXME: This is an abomination.  We should be able to set this up earlier but currently we have no
+        /// guarantee the interface is present on Initialize().  There needs to be another post initialize call from
+        /// ScriptInstance.
+        /// </remarks>
         private void InitLSL()
         {
             if (m_LSL_Api != null)
@@ -3093,5 +3101,25 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     estate.setEstateTerrainTextureHeights(corner, (float)low, (float)high);
             }
         }
+
+        public void osForceAttachToAvatar(int attachmentPoint)
+        {
+            CheckThreatLevel(ThreatLevel.High, "osForceAttachToAvatar");
+
+            m_host.AddScriptLPS(1);
+
+            InitLSL();
+            ((LSL_Api)m_LSL_Api).AttachToAvatar(attachmentPoint);
+        }
+
+        public void osForceDetachFromAvatar()
+        {
+            CheckThreatLevel(ThreatLevel.High, "osForceDetachFromAvatar");
+
+            m_host.AddScriptLPS(1);
+
+            InitLSL();
+            ((LSL_Api)m_LSL_Api).DetachFromAvatar();
+        }
     }
 }

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

@@ -98,6 +98,20 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
         void osAvatarPlayAnimation(string avatar, string animation);
         void osAvatarStopAnimation(string avatar, string animation);
 
+        // Attachment commands
+
+        /// <summary>
+        /// Attach the object containing this script to the avatar that owns it without checking for PERMISSION_ATTACH
+        /// </summary>
+        /// <param name='attachment'>The attachment point.  For example, ATTACH_CHEST</param>
+        void osForceAttachToAvatar(int attachment);
+
+        /// <summary>
+        /// Detach the object containing this script from the avatar it is attached to without checking for PERMISSION_ATTACH
+        /// </summary>
+        /// <remarks>Nothing happens if the object is not attached.</remarks>
+        void osForceDetachFromAvatar();
+
         //texture draw functions
         string osMovePen(string drawList, int x, int y);
         string osDrawLine(string drawList, int startX, int startY, int endX, int endY);

OpenSim/Region/ScriptEngine/Shared/Api/Runtime/OSSL_Stub.cs

@@ -289,8 +289,19 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
             m_OSSL_Functions.osAvatarStopAnimation(avatar, animation);
         }
 
+        // Avatar functions
 
-        //Texture Draw functions
+        public void osForceAttachToAvatar(int attachmentPoint)
+        {
+            m_OSSL_Functions.osForceAttachToAvatar(attachmentPoint);
+        }
+
+        public void osForceDetachFromAvatar()
+        {
+            m_OSSL_Functions.osForceDetachFromAvatar();
+        }
+
+        // Texture Draw functions
 
         public string osMovePen(string drawList, int x, int y)
         {

OpenSim/Region/ScriptEngine/Shared/Instance/ScriptInstance.cs

@@ -964,7 +964,14 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
         public IScriptApi GetApi(string name)
         {
             if (m_Apis.ContainsKey(name))
+            {
+//                m_log.DebugFormat("[SCRIPT INSTANCE]: Found api {0} in {1}@{2}", name, ScriptName, PrimName);
+
                 return m_Apis[name];
+            }
+
+//            m_log.DebugFormat("[SCRIPT INSTANCE]: Did not find api {0} in {1}@{2}", name, ScriptName, PrimName);
+
             return null;
         }