From 9655cf280779021e6241a08f8610cad9b982763f Mon Sep 17 00:00:00 2001
From: Justin Clarke Casey
Date: Mon, 5 May 2008 20:14:53 +0000
Subject: * Refactor: Break out permissions code into a separate region
 PermissionsModule

---
 .../Modules/World/Estate/EstateManagementModule.cs |   4 +-
 .../Modules/World/Permissions/PermissionsModule.cs | 698 +++++++++++++++++++++
 .../Modules/World/Terrain/TerrainModule.cs         |   2 +-
 3 files changed, 701 insertions(+), 3 deletions(-)
 create mode 100644 OpenSim/Region/Environment/Modules/World/Permissions/PermissionsModule.cs

(limited to 'OpenSim/Region/Environment/Modules/World')

diff --git a/OpenSim/Region/Environment/Modules/World/Estate/EstateManagementModule.cs b/OpenSim/Region/Environment/Modules/World/Estate/EstateManagementModule.cs
index 403ab5b..ebe0357 100644
--- a/OpenSim/Region/Environment/Modules/World/Estate/EstateManagementModule.cs
+++ b/OpenSim/Region/Environment/Modules/World/Estate/EstateManagementModule.cs
@@ -205,7 +205,7 @@ namespace OpenSim.Region.Environment.Modules.World.Estate
 
                     // This needs to be updated for SuperEstateOwnerUser..   a non existing user in the estatesettings.xml
                     // So make sure you really trust your region owners.   because they can add other estate manaagers to your other estates
-                    if (remote_client.AgentId == m_scene.RegionInfo.MasterAvatarAssignedUUID || m_scene.PermissionsMngr.BypassPermissions)
+                    if (remote_client.AgentId == m_scene.RegionInfo.MasterAvatarAssignedUUID || m_scene.Permissions.BypassPermissions)
                     {
                         m_scene.RegionInfo.EstateSettings.AddEstateManager(user);
                         remote_client.sendEstateManagersList(invoice);
@@ -219,7 +219,7 @@ namespace OpenSim.Region.Environment.Modules.World.Estate
                 case 512:
                     // This needs to be updated for SuperEstateOwnerUser..   a non existing user in the estatesettings.xml
                     // So make sure you really trust your region owners.   because they can add other estate manaagers to your other estates
-                    if (remote_client.AgentId == m_scene.RegionInfo.MasterAvatarAssignedUUID || m_scene.PermissionsMngr.BypassPermissions)
+                    if (remote_client.AgentId == m_scene.RegionInfo.MasterAvatarAssignedUUID || m_scene.Permissions.BypassPermissions)
                     {
                         m_scene.RegionInfo.EstateSettings.RemoveEstateManager(user);
                         remote_client.sendEstateManagersList(invoice);
diff --git a/OpenSim/Region/Environment/Modules/World/Permissions/PermissionsModule.cs b/OpenSim/Region/Environment/Modules/World/Permissions/PermissionsModule.cs
new file mode 100644
index 0000000..de02702
--- /dev/null
+++ b/OpenSim/Region/Environment/Modules/World/Permissions/PermissionsModule.cs
@@ -0,0 +1,698 @@
+/*
+ * 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 libsecondlife;
+using Nini.Config;
+
+using OpenSim.Region.Environment.Interfaces;
+using OpenSim.Region.Environment.Scenes;
+
+namespace OpenSim.Region.Environment.Modules.World.Permissions
+{
+    public class PermissionsModule : IRegionModule, IScenePermissions
+    {
+        protected Scene m_scene;
+
+        // These are here for testing.  They will be taken out
+        
+        //private uint PERM_ALL = (uint)2147483647;
+        private uint PERM_COPY = (uint)32768;
+        //private uint PERM_MODIFY = (uint)16384;
+        private uint PERM_MOVE = (uint)524288;
+        //private uint PERM_TRANS = (uint)8192;
+        private uint PERM_LOCKED = (uint)540672;
+        
+        // Bypasses the permissions engine 
+        private bool m_bypassPermissions = false;
+
+        public bool BypassPermissions
+        {
+            get { return m_bypassPermissions; }
+            set { m_bypassPermissions = value; }
+        }
+
+        #region IRegionModule Members
+
+        public void Initialise(Scene scene, IConfigSource config)
+        {
+            m_scene = scene;
+            
+            // FIXME: Possibly move all permissions related stuff to its own section
+            IConfig myConfig = config.Configs["Startup"];
+            
+            m_bypassPermissions = !myConfig.GetBoolean("serverside_object_permissions", false);            
+            
+            m_scene.RegisterModuleInterface<IScenePermissions>(this);
+        }
+
+        public void PostInitialise()
+        {
+        }
+
+        public void Close()
+        {
+        }
+
+        public string Name
+        {
+            get { return "PermissionsModule"; }
+        }
+
+        public bool IsSharedModule
+        {
+            get { return false; }
+        }
+
+        #endregion        
+
+        protected virtual void SendPermissionError(LLUUID user, string reason)
+        {
+            m_scene.EventManager.TriggerPermissionError(user, reason);
+        }
+
+        protected virtual bool IsAdministrator(LLUUID user)
+        {
+            if (m_bypassPermissions)
+            {
+                return true;
+            }
+
+            // If there is no master avatar, return false
+            if (m_scene.RegionInfo.MasterAvatarAssignedUUID != LLUUID.Zero)
+            {
+                return m_scene.RegionInfo.MasterAvatarAssignedUUID == user;
+            }
+
+            return false;
+        }
+
+        public virtual bool IsEstateManager(LLUUID user)
+        {
+            if (m_bypassPermissions)
+            {
+                return true;
+            }
+
+            if (user != LLUUID.Zero)
+            {
+                LLUUID[] estatemanagers = m_scene.RegionInfo.EstateSettings.estateManagers;
+                for (int i = 0; i < estatemanagers.Length; i++)
+                {
+                    if (estatemanagers[i] == user)
+                        return true;
+                }
+            }
+
+            return false;
+        }
+
+        protected virtual bool IsGridUser(LLUUID user)
+        {
+            return true;
+        }
+
+        protected virtual bool IsGuest(LLUUID user)
+        {
+            return false;
+        }
+
+        public virtual bool CanRezObject(LLUUID user, LLVector3 position)
+        {
+            bool permission = false;
+
+            string reason = "Insufficient permission";
+
+            ILandObject land = m_scene.LandChannel.getLandObject(position.X, position.Y);
+            if (land == null) return false;
+
+            if ((land.landData.landFlags & ((int)Parcel.ParcelFlags.CreateObjects)) ==
+                (int)Parcel.ParcelFlags.CreateObjects)
+                permission = true;
+
+            //TODO: check for group rights
+
+            if (IsAdministrator(user))
+            {
+                permission = true;
+            }
+            else
+            {
+                reason = "Not an administrator";
+            }
+
+            if (GenericParcelPermission(user, position))
+            {
+                permission = true;
+            }
+            else
+            {
+                reason = "Not the parcel owner";
+            }
+
+            if (!permission)
+                SendPermissionError(user, reason);
+
+            return permission;
+        }
+
+        /// <see cref="Opensim.Region.Environment.Interfaces.IScenePermissions></see>
+        public virtual bool CanObjectEntry(LLUUID user, LLVector3 oldPos, LLVector3 newPos)
+        {
+            if ((newPos.X > 257f || newPos.X < -1f || newPos.Y > 257f || newPos.Y < -1f))
+            {
+                return true;
+            }
+
+            ILandObject land1 = m_scene.LandChannel.getLandObject(oldPos.X, oldPos.Y);
+            ILandObject land2 = m_scene.LandChannel.getLandObject(newPos.X, newPos.Y);
+
+            if (land1 == null || land2 == null)
+            {
+                return false;
+            }
+            if (land2 == null)
+            {
+                // need this for crossing borders
+                return true;
+            }
+
+            if (land1.landData.globalID == land2.landData.globalID)
+            {
+                return true;
+            }
+
+            if ((land2.landData.landFlags & ((int)Parcel.ParcelFlags.AllowAllObjectEntry)) != 0)
+            {
+                return true;
+            }
+
+            //TODO: check for group rights
+
+            if (GenericParcelPermission(user, newPos))
+            {
+                return true;
+            }
+
+            SendPermissionError(user, "Not allowed to move objects in this parcel!");
+
+            return false;
+        }
+
+        #region Object Permissions
+
+        public virtual uint GenerateClientFlags(LLUUID user, LLUUID objID)
+        {
+            // Here's the way this works, 
+            // ObjectFlags and Permission flags are two different enumerations
+            // ObjectFlags, however, tells the client to change what it will allow the user to do.
+            // So, that means that all of the permissions type ObjectFlags are /temporary/ and only 
+            // supposed to be set when customizing the objectflags for the client.  
+
+            // These temporary objectflags get computed and added in this function based on the 
+            // Permission mask that's appropriate!
+            // Outside of this method, they should never be added to objectflags!
+            // -teravus
+
+			SceneObjectPart task=m_scene.GetSceneObjectPart(objID);
+            
+            // this shouldn't ever happen..     return no permissions/objectflags.
+            if (task == null)
+                return (uint)0;
+
+			uint objflags = task.GetEffectiveObjectFlags();
+			LLUUID objectOwner = task.OwnerID;
+
+
+            // Remove any of the objectFlags that are temporary.  These will get added back if appropriate 
+            // in the next bit of code
+
+            objflags &= (uint)
+                ~(LLObject.ObjectFlags.ObjectCopy | // Tells client you can copy the object
+                  LLObject.ObjectFlags.ObjectModify | // tells client you can modify the object
+                  LLObject.ObjectFlags.ObjectMove |   // tells client that you can move the object (only, no mod)
+                  LLObject.ObjectFlags.ObjectTransfer | // tells the client that you can /take/ the object if you don't own it
+                  LLObject.ObjectFlags.ObjectYouOwner | // Tells client that you're the owner of the object
+                  LLObject.ObjectFlags.ObjectYouOfficer // Tells client that you've got group object editing permission. Used when ObjectGroupOwned is set
+                    );
+
+            // Creating the three ObjectFlags options for this method to choose from.
+            // Customize the OwnerMask
+            uint objectOwnerMask = ApplyObjectModifyMasks(task.OwnerMask, objflags);
+            objectOwnerMask |= (uint)LLObject.ObjectFlags.ObjectYouOwner;
+
+            // Customize the GroupMask
+            uint objectGroupMask = ApplyObjectModifyMasks(task.GroupMask, objflags);
+
+            // Customize the EveryoneMask
+            uint objectEveryoneMask = ApplyObjectModifyMasks(task.EveryoneMask, objflags);
+
+
+            // Hack to allow collaboration until Groups and Group Permissions are implemented
+            if ((objectEveryoneMask & (uint)LLObject.ObjectFlags.ObjectMove) != 0)
+                objectEveryoneMask |= (uint)LLObject.ObjectFlags.ObjectModify;
+
+            if (m_bypassPermissions)
+                return objectOwnerMask;
+
+            // Object owners should be able to edit their own content
+            if (user == objectOwner)
+            {
+                return objectOwnerMask;
+            }
+
+            // Users should be able to edit what is over their land.
+            ILandObject parcel = m_scene.LandChannel.getLandObject(task.AbsolutePosition.X, task.AbsolutePosition.Y);
+            if (parcel != null && parcel.landData.ownerID == user)
+                return objectOwnerMask;
+
+            // Admin objects should not be editable by the above
+            if (IsAdministrator(objectOwner))
+                return objectEveryoneMask;
+
+            // Estate users should be able to edit anything in the sim
+            if (IsEstateManager(user))
+                return objectOwnerMask;
+
+
+
+            // Admin should be able to edit anything in the sim (including admin objects)
+            if (IsAdministrator(user))
+                return objectOwnerMask;
+
+
+            return objectEveryoneMask;
+        }
+
+        private uint ApplyObjectModifyMasks(uint setPermissionMask, uint objectFlagsMask)
+        {
+            // We are adding the temporary objectflags to the object's objectflags based on the 
+            // permission flag given.  These change the F flags on the client.
+
+            if ((setPermissionMask & (uint)PermissionMask.Copy) != 0)
+            {
+                objectFlagsMask |= (uint)LLObject.ObjectFlags.ObjectCopy;
+            }
+
+            if ((setPermissionMask & (uint)PermissionMask.Move) != 0)
+            {
+                objectFlagsMask |= (uint)LLObject.ObjectFlags.ObjectMove;
+            }
+
+            if ((setPermissionMask & (uint)PermissionMask.Modify) != 0)
+            {
+                objectFlagsMask |= (uint)LLObject.ObjectFlags.ObjectModify;
+            }
+
+            if ((setPermissionMask & (uint)PermissionMask.Transfer) != 0)
+            {
+                objectFlagsMask |= (uint)LLObject.ObjectFlags.ObjectTransfer;
+            }
+
+            return objectFlagsMask;
+        }
+
+        protected virtual bool GenericObjectPermission(LLUUID currentUser, LLUUID objId)
+        {
+            // Default: deny
+            bool permission = false;
+            bool locked = false;
+
+            if (!m_scene.Entities.ContainsKey(objId))
+            {
+                return false;
+            }
+
+            // If it's not an object, we cant edit it.
+            if ((!(m_scene.Entities[objId] is SceneObjectGroup)))
+            {
+                return false;
+            }
+
+
+            SceneObjectGroup group = (SceneObjectGroup)m_scene.Entities[objId];
+
+            LLUUID objectOwner = group.OwnerID;
+            locked = ((group.RootPart.OwnerMask & PERM_LOCKED) == 0);
+
+            // People shouldn't be able to do anything with locked objects, except the Administrator
+            // The 'set permissions' runs through a different permission check, so when an object owner 
+            // sets an object locked, the only thing that they can do is unlock it.
+            //
+            // Nobody but the object owner can set permissions on an object
+            //
+
+            if (locked && (!IsAdministrator(currentUser)))
+            {
+                return false;
+            }
+
+            // Object owners should be able to edit their own content
+            if (currentUser == objectOwner)
+            {
+                permission = true;
+            }
+
+            // Users should be able to edit what is over their land.
+            ILandObject parcel = m_scene.LandChannel.getLandObject(group.AbsolutePosition.X, group.AbsolutePosition.Y);
+            if ((parcel != null) && (parcel.landData.ownerID == currentUser))
+            {
+                permission = true;
+            }
+
+            // Estate users should be able to edit anything in the sim
+            if (IsEstateManager(currentUser))
+            {
+                permission = true;
+            }
+
+            // Admin objects should not be editable by the above
+            if (IsAdministrator(objectOwner))
+            {
+                permission = false;
+            }
+
+            // Admin should be able to edit anything in the sim (including admin objects)
+            if (IsAdministrator(currentUser))
+            {
+                permission = true;
+            }
+
+            return permission;
+        }
+
+        /// <see cref="Opensim.Region.Environment.Interfaces.IScenePermissions></see>
+        public virtual bool CanDeRezObject(LLUUID user, LLUUID obj)
+        {
+            return GenericObjectPermission(user, obj);
+        }
+
+        public virtual bool CanEditObject(LLUUID user, LLUUID obj)
+        {
+            return GenericObjectPermission(user, obj);
+        }
+
+        public virtual bool CanEditObjectPosition(LLUUID user, LLUUID obj)
+        {
+            bool permission = GenericObjectPermission(user, obj);
+            if (!permission)
+            {
+                if (!m_scene.Entities.ContainsKey(obj))
+                {
+                    return false;
+                }
+
+                // The client 
+                // may request to edit linked parts, and therefore, it needs 
+                // to also check for SceneObjectPart
+
+                // If it's not an object, we cant edit it.
+                if ((!(m_scene.Entities[obj] is SceneObjectGroup)))
+                {
+                    return false;
+                }
+
+
+                SceneObjectGroup task = (SceneObjectGroup)m_scene.Entities[obj];
+
+
+                LLUUID taskOwner = null;
+                // Added this because at this point in time it wouldn't be wise for 
+                // the administrator object permissions to take effect.
+                LLUUID objectOwner = task.OwnerID;
+
+                // Anyone can move
+                if ((task.RootPart.EveryoneMask & PERM_MOVE) != 0)
+                    permission = true;
+
+                // Locked
+                if ((task.RootPart.OwnerMask & PERM_LOCKED) == 0)
+                    permission = false;
+
+            }
+            else
+            {
+                bool locked = false;
+                if (!m_scene.Entities.ContainsKey(obj))
+                {
+                    return false;
+                }
+
+                // If it's not an object, we cant edit it.
+                if ((!(m_scene.Entities[obj] is SceneObjectGroup)))
+                {
+                    return false;
+                }
+
+
+                SceneObjectGroup group = (SceneObjectGroup)m_scene.Entities[obj];
+
+                LLUUID objectOwner = group.OwnerID;
+                locked = ((group.RootPart.OwnerMask & PERM_LOCKED) == 0);
+
+
+                // This is an exception to the generic object permission.
+                // Administrators who lock their objects should not be able to move them, 
+                // however generic object permission should return true.
+                // This keeps locked objects from being affected by random click + drag actions by accident
+                // and allows the administrator to grab or delete a locked object.
+
+                // Administrators and estate managers are still able to click+grab locked objects not 
+                // owned by them in the scene
+                // This is by design.
+
+                if (locked && (user == objectOwner))
+                    return false;
+            }
+            return permission;
+        }
+
+        public virtual bool CanCopyObject(LLUUID user, LLUUID obj)
+        {
+            bool permission = GenericObjectPermission(user, obj);
+            if (!permission)
+            {
+                if (!m_scene.Entities.ContainsKey(obj))
+                {
+                    return false;
+                }
+
+                // If it's not an object, we cant edit it.
+                if (!(m_scene.Entities[obj] is SceneObjectGroup))
+                {
+                    return false;
+                }
+
+                SceneObjectGroup task = (SceneObjectGroup)m_scene.Entities[obj];
+                LLUUID taskOwner = null;
+                // Added this because at this point in time it wouldn't be wise for 
+                // the administrator object permissions to take effect.
+                LLUUID objectOwner = task.OwnerID;
+                if ((task.RootPart.EveryoneMask & PERM_COPY) != 0)
+                    permission = true;
+            }
+            return permission;
+        }
+
+        public virtual bool CanReturnObject(LLUUID user, LLUUID obj)
+        {
+            return GenericObjectPermission(user, obj);
+        }
+
+        #endregion
+
+        #region Communication Permissions
+
+        protected virtual bool GenericCommunicationPermission(LLUUID user, LLUUID target)
+        {
+            bool permission = false;
+            string reason = "Only registered users may communicate with another account.";
+
+            if (IsGridUser(user))
+                permission = true;
+
+            if (!IsGridUser(user))
+            {
+                permission = false;
+                reason = "The person that you are messaging is not a registered user.";
+            }
+            if (IsAdministrator(user))
+                permission = true;
+
+            if (IsEstateManager(user))
+                permission = true;
+
+            if (!permission)
+                SendPermissionError(user, reason);
+
+            return permission;
+        }
+
+        public virtual bool CanInstantMessage(LLUUID user, LLUUID target)
+        {
+            return GenericCommunicationPermission(user, target);
+        }
+
+        public virtual bool CanInventoryTransfer(LLUUID user, LLUUID target)
+        {
+            return GenericCommunicationPermission(user, target);
+        }
+
+        #endregion
+
+        public virtual bool CanEditScript(LLUUID user, LLUUID script)
+        {
+            return IsAdministrator(user);
+        }
+
+        public virtual bool CanRunScript(LLUUID user, LLUUID script)
+        {
+            return IsAdministrator(user);
+        }
+
+        public virtual bool CanRunConsoleCommand(LLUUID user)
+        {
+            return IsAdministrator(user);
+        }
+
+        public virtual bool CanTerraform(LLUUID user, LLVector3 position)
+        {
+            bool permission = false;
+
+            // Estate override
+            if (GenericEstatePermission(user))
+                permission = true;
+
+            float X = position.X;
+            float Y = position.Y;
+
+            if (X > 255)
+                X = 255;
+            if (Y > 255)
+                Y = 255;
+            if (X < 0)
+                X = 0;
+            if (Y < 0)
+                Y = 0;
+
+            // Land owner can terraform too
+            ILandObject parcel = m_scene.LandChannel.getLandObject(X, Y);
+            if (parcel != null && GenericParcelPermission(user, parcel))
+                permission = true;
+
+            if (!permission)
+                SendPermissionError(user, "Not authorized to terraform at this location.");
+
+            return permission;
+        }
+
+        #region Estate Permissions
+
+        public virtual bool GenericEstatePermission(LLUUID user)
+        {
+            // Default: deny
+            bool permission = false;
+
+            // Estate admins should be able to use estate tools
+            if (IsEstateManager(user))
+                permission = true;
+
+            // Administrators always have permission
+            if (IsAdministrator(user))
+                permission = true;
+
+            return permission;
+        }
+
+        public virtual bool CanEditEstateTerrain(LLUUID user)
+        {
+            return GenericEstatePermission(user);
+        }
+
+        public virtual bool CanRestartSim(LLUUID user)
+        {
+            // Since this is potentially going on a grid...    
+
+            return GenericEstatePermission(user);
+            //return m_scene.RegionInfo.MasterAvatarAssignedUUID == user;
+        }
+
+        #endregion
+
+        #region Parcel Permissions
+
+        protected virtual bool GenericParcelPermission(LLUUID user, ILandObject parcel)
+        {
+            bool permission = false;
+
+            if (parcel.landData.ownerID == user)
+            {
+                permission = true;
+            }
+
+            if (parcel.landData.isGroupOwned)
+            {
+                // TODO: Need to do some extra checks here. Requires group code.
+            }
+
+            if (IsEstateManager(user))
+            {
+                permission = true;
+            }
+
+            if (IsAdministrator(user))
+            {
+                permission = true;
+            }
+
+            return permission;
+        }
+
+        protected virtual bool GenericParcelPermission(LLUUID user, LLVector3 pos)
+        {
+            ILandObject parcel = m_scene.LandChannel.getLandObject(pos.X, pos.Y);
+            if (parcel == null) return false;
+            return GenericParcelPermission(user, parcel);
+        }
+
+        public virtual bool CanEditParcel(LLUUID user, ILandObject parcel)
+        {
+            return GenericParcelPermission(user, parcel);
+        }
+
+        public virtual bool CanSellParcel(LLUUID user, ILandObject parcel)
+        {
+            return GenericParcelPermission(user, parcel);
+        }
+
+        public virtual bool CanAbandonParcel(LLUUID user, ILandObject parcel)
+        {
+            return GenericParcelPermission(user, parcel);
+        }
+
+        #endregion
+    }
+}
diff --git a/OpenSim/Region/Environment/Modules/World/Terrain/TerrainModule.cs b/OpenSim/Region/Environment/Modules/World/Terrain/TerrainModule.cs
index 240ba65..91a28e4 100644
--- a/OpenSim/Region/Environment/Modules/World/Terrain/TerrainModule.cs
+++ b/OpenSim/Region/Environment/Modules/World/Terrain/TerrainModule.cs
@@ -449,7 +449,7 @@ namespace OpenSim.Region.Environment.Modules.World.Terrain
                                             float south, float east, IClientAPI remoteClient)
         {
             // Not a good permissions check, if in area mode, need to check the entire area.
-            if (m_scene.PermissionsMngr.CanTerraform(remoteClient.AgentId, new LLVector3(north, west, 0)))
+            if (m_scene.Permissions.CanTerraform(remoteClient.AgentId, new LLVector3(north, west, 0)))
             {
                 if (north == south && east == west)
                 {
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