Aurora.ScriptEngine.AuroraDotNetEngine.APIs.LSL_Api.llRequestPermissions C# (CSharp) Method

        public void llRequestPermissions(string agent, int perm)
        {
            if (!ScriptProtection.CheckThreatLevel(ThreatLevel.None, "LSL", m_host, "LSL", m_itemID)) return;
            UUID agentID = new UUID();

            if (!UUID.TryParse(agent, out agentID))
                return;

            UUID invItemID = InventorySelf();

            if (invItemID == UUID.Zero)
                return; // Not in a prim? How??

            TaskInventoryItem item;

            lock (m_host.TaskInventory)
            {
                item = m_host.TaskInventory[invItemID];
            }

            if (agentID == UUID.Zero || perm == 0) // Releasing permissions
            {
                llReleaseControls();

                item.PermsGranter = UUID.Zero;
                item.PermsMask = 0;

                m_ScriptEngine.PostScriptEvent(m_itemID, m_host.UUID, new EventParams(
                        "run_time_permissions", new Object[] {
                        new LSL_Integer(0) },
                        new DetectParams[0]), EventPriority.FirstStart);

                return;
            }

            if (item.PermsGranter != agentID || (perm & ScriptBaseClass.PERMISSION_TAKE_CONTROLS) == 0)
                llReleaseControls();



            if (m_host.ParentEntity.IsAttachment && (UUID)agent == m_host.ParentEntity.RootChild.AttachedAvatar)
            {
                // When attached, certain permissions are implicit if requested from owner
                int implicitPerms = ScriptBaseClass.PERMISSION_TAKE_CONTROLS |
                        ScriptBaseClass.PERMISSION_TRIGGER_ANIMATION |
                        ScriptBaseClass.PERMISSION_CONTROL_CAMERA |
                        ScriptBaseClass.PERMISSION_ATTACH |
                        ScriptBaseClass.PERMISSION_TRACK_CAMERA;

                if ((perm & (~implicitPerms)) == 0) // Requested only implicit perms
                {
                    lock (m_host.TaskInventory)
                    {
                        m_host.TaskInventory[invItemID].PermsGranter = agentID;
                        m_host.TaskInventory[invItemID].PermsMask = perm;
                    }

                    m_ScriptEngine.PostScriptEvent(m_itemID, m_host.UUID, new EventParams(
                            "run_time_permissions", new Object[] {
                            new LSL_Integer(perm) },
                            new DetectParams[0]), EventPriority.FirstStart);

                    return;
                }
            }
            else if (m_host.ParentEntity.SitTargetAvatar.Contains(agentID)) // Sitting avatar
            {
                // When agent is sitting, certain permissions are implicit if requested from sitting agent
                int implicitPerms = ScriptBaseClass.PERMISSION_TRIGGER_ANIMATION |
                    ScriptBaseClass.PERMISSION_CONTROL_CAMERA |
                    ScriptBaseClass.PERMISSION_TRACK_CAMERA |
                    ScriptBaseClass.PERMISSION_TAKE_CONTROLS;

                if ((perm & (~implicitPerms)) == 0) // Requested only implicit perms
                {
                    lock (m_host.TaskInventory)
                    {
                        m_host.TaskInventory[invItemID].PermsGranter = agentID;
                        m_host.TaskInventory[invItemID].PermsMask = perm;
                    }

                    m_ScriptEngine.PostScriptEvent(m_itemID, m_host.UUID, new EventParams(
                            "run_time_permissions", new Object[] {
                            new LSL_Integer(perm) },
                            new DetectParams[0]), EventPriority.FirstStart);

                    return;
                }
            }

            IScenePresence presence = World.GetScenePresence(agentID);

            if (presence != null)
            {
                string ownerName = "";
                IScenePresence ownerPresence = World.GetScenePresence(m_host.ParentEntity.RootChild.OwnerID);
                ownerName = ownerPresence == null ? resolveName(m_host.OwnerID) : ownerPresence.Name;

                if (ownerName == String.Empty)
                    ownerName = "(hippos)";

                if (!m_waitingForScriptAnswer)
                {
                    lock (m_host.TaskInventory)
                    {
                        m_host.TaskInventory[invItemID].PermsGranter = agentID;
                        m_host.TaskInventory[invItemID].PermsMask = 0;
                    }

                    presence.ControllingClient.OnScriptAnswer += handleScriptAnswer;
                    m_waitingForScriptAnswer = true;
                }

                presence.ControllingClient.SendScriptQuestion(
                    m_host.UUID, m_host.ParentEntity.RootChild.Name, ownerName, invItemID, perm);

                return;
            }

            // Requested agent is not in range, refuse perms
            m_ScriptEngine.PostScriptEvent(m_itemID, m_host.UUID, new EventParams(
                    "run_time_permissions", new Object[] {
                    new LSL_Integer(0) },
                    new DetectParams[0]), EventPriority.FirstStart);
        }