Revamp the viewer -> banlist packet processing so fix a number of bugs.

Remove the too coarse CanEditParcel method in favor of a CanEditParcelProperties
method that takes a GroupPowers argument to specify what action is to be
taken. Also, make the method to set parcel data much more granular. Permissions
in a deeded setting should now work.

11 files changed, 244 insertions, 181 deletions

diff --git a/OpenSim/Framework/IClientAPI.cs b/OpenSim/Framework/IClientAPI.cs
index f8be9ad..1a59cf4 100644
--- a/OpenSim/Framework/IClientAPI.cs
+++ b/OpenSim/Framework/IClientAPI.cs
@@ -174,9 +174,10 @@ namespace OpenSim.Framework
     public delegate void ParcelAccessListRequest(
         UUID agentID, UUID sessionID, uint flags, int sequenceID, int landLocalID, IClientAPI remote_client);
 
-    public delegate void ParcelAccessListUpdateRequest(
-        UUID agentID, UUID sessionID, uint flags, int landLocalID, List<ParcelManager.ParcelAccessEntry> entries,
-        IClientAPI remote_client);
+    public delegate void ParcelAccessListUpdateRequest(UUID agentID, uint flags,
+                    int landLocalID, UUID transactionID, int sequenceID,
+                    int sections, List<ParcelManager.ParcelAccessEntry> entries,
+                    IClientAPI remote_client);
 
     public delegate void ParcelPropertiesRequest(
         int start_x, int start_y, int end_x, int end_y, int sequence_id, bool snap_selection, IClientAPI remote_client);
diff --git a/OpenSim/Region/ClientStack/LindenUDP/LLClientView.cs b/OpenSim/Region/ClientStack/LindenUDP/LLClientView.cs
index 246aaf0..612c0d9 100644
--- a/OpenSim/Region/ClientStack/LindenUDP/LLClientView.cs
+++ b/OpenSim/Region/ClientStack/LindenUDP/LLClientView.cs
@@ -8298,7 +8298,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 ParcelManager.ParcelAccessEntry entry = new ParcelManager.ParcelAccessEntry();
                 entry.AgentID = block.ID;
                 entry.Flags = (AccessList)block.Flags;
-                entry.Time = new DateTime();
+                entry.Time = Util.ToDateTime(block.Time);
                 entries.Add(entry);
             }
 
@@ -8306,8 +8306,12 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             if (handlerParcelAccessListUpdateRequest != null)
             {
                 handlerParcelAccessListUpdateRequest(updatePacket.AgentData.AgentID,
-                                                     updatePacket.AgentData.SessionID, updatePacket.Data.Flags,
-                                                     updatePacket.Data.LocalID, entries, this);
+                                                     updatePacket.Data.Flags,
+                                                     updatePacket.Data.LocalID,
+                                                     updatePacket.Data.TransactionID,
+                                                     updatePacket.Data.SequenceID,
+                                                     updatePacket.Data.Sections,
+                                                     entries, this);
             }
             return true;
         }
diff --git a/OpenSim/Region/CoreModules/World/Land/LandManagementModule.cs b/OpenSim/Region/CoreModules/World/Land/LandManagementModule.cs
index 2554995..8449cc1 100644
--- a/OpenSim/Region/CoreModules/World/Land/LandManagementModule.cs
+++ b/OpenSim/Region/CoreModules/World/Land/LandManagementModule.cs
@@ -167,7 +167,7 @@ namespace OpenSim.Region.CoreModules.World.Land
             client.OnParcelSelectObjects += ClientOnParcelSelectObjects;
             client.OnParcelObjectOwnerRequest += ClientOnParcelObjectOwnerRequest;
             client.OnParcelAccessListRequest += ClientOnParcelAccessListRequest;
-            client.OnParcelAccessListUpdateRequest += ClientOnParcelAccessUpdateListRequest;
+            client.OnParcelAccessListUpdateRequest += ClientOnParcelAccessListUpdateRequest;
             client.OnParcelAbandonRequest += ClientOnParcelAbandonRequest;
             client.OnParcelGodForceOwner += ClientOnParcelGodForceOwner;
             client.OnParcelReclaim += ClientOnParcelReclaim;
@@ -516,14 +516,22 @@ namespace OpenSim.Region.CoreModules.World.Land
 
             if (land != null)
             {
-                m_landList[landLocalID].SendAccessList(agentID, sessionID, flags, sequenceID, remote_client);
+                land.SendAccessList(agentID, sessionID, flags, sequenceID, remote_client);
             }
         }
 
-        public void ClientOnParcelAccessUpdateListRequest(UUID agentID, UUID sessionID, uint flags, int landLocalID,
-                                                          List<ParcelManager.ParcelAccessEntry> entries,
-                                                          IClientAPI remote_client)
+        public void ClientOnParcelAccessListUpdateRequest(UUID agentID,
+                uint flags, int landLocalID, UUID transactionID, int sequenceID,
+                int sections, List<ParcelManager.ParcelAccessEntry> entries,
+                IClientAPI remote_client)
         {
+            // Flags is the list to update, it can mean either the ban or
+            // the access list (WTH is a pass list? Mentioned in ParcelFlags)
+            //
+            // There may be multiple packets, because these can get LONG.
+            // Use transactionID to determine a new chain of packets since
+            // packets may have come in out of sequence and that would be
+            // a big mess if using the sequenceID
             ILandObject land;
             lock (m_landList)
             {
@@ -532,9 +540,15 @@ namespace OpenSim.Region.CoreModules.World.Land
 
             if (land != null)
             {
-                if (agentID == land.LandData.OwnerID)
+                GroupPowers requiredPowers = GroupPowers.LandManageAllowed;
+                if (flags == (uint)AccessList.Ban)
+                    requiredPowers = GroupPowers.LandManageBanned;
+
+                if (m_scene.Permissions.CanEditParcelProperties(agentID,
+                        land, requiredPowers))
                 {
-                    land.UpdateAccessList(flags, entries, remote_client);
+                    land.UpdateAccessList(flags, transactionID, sequenceID,
+                            sections, entries, remote_client);
                 }
             }
             else
@@ -862,7 +876,7 @@ namespace OpenSim.Region.CoreModules.World.Land
 
             //If we are still here, then they are subdividing within one piece of land
             //Check owner
-            if (!m_scene.Permissions.CanEditParcel(attempting_user_id, startLandObject))
+            if (!m_scene.Permissions.CanEditParcelProperties(attempting_user_id, startLandObject, GroupPowers.LandDivideJoin))
             {
                 return;
             }
@@ -930,7 +944,7 @@ namespace OpenSim.Region.CoreModules.World.Land
             {
                 return;
             }
-            if (!m_scene.Permissions.CanEditParcel(attempting_user_id, masterLandObject))
+            if (!m_scene.Permissions.CanEditParcelProperties(attempting_user_id, masterLandObject, GroupPowers.LandDivideJoin))
             {
                 return;
             }
@@ -1595,7 +1609,7 @@ namespace OpenSim.Region.CoreModules.World.Land
 
             if (land == null) return;
 
-            if (!m_scene.Permissions.CanEditParcel(remoteClient.AgentId, land))
+            if (!m_scene.Permissions.CanEditParcelProperties(remoteClient.AgentId, land, GroupPowers.LandOptions))
                 return;
 
             land.LandData.OtherCleanTime = otherCleanTime;
@@ -1695,7 +1709,7 @@ namespace OpenSim.Region.CoreModules.World.Land
             if (targetAvatar.UserLevel == 0)
             {
                 ILandObject land = ((Scene)client.Scene).LandChannel.GetLandObject(targetAvatar.AbsolutePosition.X, targetAvatar.AbsolutePosition.Y);
-                if (!((Scene)client.Scene).Permissions.CanEditParcel(client.AgentId, land))
+                if (!((Scene)client.Scene).Permissions.CanEditParcelProperties(client.AgentId, land, GroupPowers.LandEjectAndFreeze))
                     return;
                 if (flags == 0)
                 {
@@ -1740,7 +1754,7 @@ namespace OpenSim.Region.CoreModules.World.Land
                 if (targetAvatar.UserLevel == 0)
                 {
                     ILandObject land = ((Scene)client.Scene).LandChannel.GetLandObject(targetAvatar.AbsolutePosition.X, targetAvatar.AbsolutePosition.Y);
-                    if (!((Scene)client.Scene).Permissions.CanEditParcel(client.AgentId, land))
+                    if (!((Scene)client.Scene).Permissions.CanEditParcelProperties(client.AgentId, land, GroupPowers.LandEjectAndFreeze))
                         return;
 
                     Vector3 position = new Vector3(0, 0, 0);
@@ -1819,7 +1833,7 @@ namespace OpenSim.Region.CoreModules.World.Land
                 if (targetAvatar.UserLevel == 0)
                 {
                     ILandObject land = ((Scene)client.Scene).LandChannel.GetLandObject(targetAvatar.AbsolutePosition.X, targetAvatar.AbsolutePosition.Y);
-                    if (!((Scene)client.Scene).Permissions.CanEditParcel(client.AgentId, land))
+                    if (!((Scene)client.Scene).Permissions.CanEditParcelProperties(client.AgentId, land, GroupPowers.LandEjectAndFreeze))
                         return;
 
                     Vector3 position = new Vector3(0, 0, 0);
diff --git a/OpenSim/Region/CoreModules/World/Land/LandObject.cs b/OpenSim/Region/CoreModules/World/Land/LandObject.cs
index d596887..8483e32 100644
--- a/OpenSim/Region/CoreModules/World/Land/LandObject.cs
+++ b/OpenSim/Region/CoreModules/World/Land/LandObject.cs
@@ -54,6 +54,7 @@ namespace OpenSim.Region.CoreModules.World.Land
         protected LandData m_landData = new LandData();
         protected Scene m_scene;
         protected List<SceneObjectGroup> primsOverMe = new List<SceneObjectGroup>();
+        protected Dictionary<uint, UUID> m_listTransactions = new Dictionary<uint, UUID>();
 
         public bool[,] LandBitmap
         {
@@ -199,36 +200,81 @@ namespace OpenSim.Region.CoreModules.World.Land
 
         public void UpdateLandProperties(LandUpdateArgs args, IClientAPI remote_client)
         {
-            if (m_scene.Permissions.CanEditParcel(remote_client.AgentId,this))
+            //Needs later group support
+            bool snap_selection = false;
+            LandData newData = LandData.Copy();
+
+            uint allowedDelta = 0;
+
+            // These two are always blocked as no client can set them anyway
+            // ParcelFlags.ForSaleObjects
+            // ParcelFlags.LindenHome
+
+            if (m_scene.Permissions.CanEditParcelProperties(remote_client.AgentId, this, GroupPowers.LandOptions))
             {
-                //Needs later group support
-                bool snap_selection = false;
-                LandData newData = LandData.Copy();
+                allowedDelta |= (uint)(ParcelFlags.AllowLandmark |
+                        ParcelFlags.AllowTerraform |
+                        ParcelFlags.AllowDamage |
+                        ParcelFlags.CreateObjects |
+                        ParcelFlags.RestrictPushObject |
+                        ParcelFlags.AllowGroupScripts |
+                        ParcelFlags.CreateGroupObjects |
+                        ParcelFlags.AllowAPrimitiveEntry |
+                        ParcelFlags.AllowGroupObjectEntry);
+            }
 
-                if (args.AuthBuyerID != newData.AuthBuyerID || args.SalePrice != newData.SalePrice)
+            if (m_scene.Permissions.CanEditParcelProperties(remote_client.AgentId, this, GroupPowers.LandSetSale))
+            {
+                if (args.AuthBuyerID != newData.AuthBuyerID ||
+                    args.SalePrice != newData.SalePrice)
                 {
-                    if (m_scene.Permissions.CanSellParcel(remote_client.AgentId, this))
-                    {
-                        newData.AuthBuyerID = args.AuthBuyerID;
-                        newData.SalePrice = args.SalePrice;
-                        snap_selection = true;
-                    }
+                    snap_selection = true;
+                }
+
+                newData.AuthBuyerID = args.AuthBuyerID;
+                newData.SalePrice = args.SalePrice;
+
+                if (!LandData.IsGroupOwned)
+                {
+                    newData.GroupID = args.GroupID;
+
+                    allowedDelta |= (uint)(ParcelFlags.AllowDeedToGroup |
+                            ParcelFlags.ContributeWithDeed |
+                            ParcelFlags.SellParcelObjects);
                 }
+
+                allowedDelta |= (uint)ParcelFlags.ForSale;
+            }
+
+            if (m_scene.Permissions.CanEditParcelProperties(remote_client.AgentId,this, GroupPowers.FindPlaces))
+            {
                 newData.Category = args.Category;
+
+                allowedDelta |= (uint)(ParcelFlags.ShowDirectory |
+                        ParcelFlags.AllowPublish |
+                        ParcelFlags.MaturePublish);
+            }
+
+            if (m_scene.Permissions.CanEditParcelProperties(remote_client.AgentId,this, GroupPowers.LandChangeIdentity))
+            {
                 newData.Description = args.Desc;
-                newData.GroupID = args.GroupID;
+                newData.Name = args.Name;
+                newData.SnapshotID = args.SnapshotID;
+            }
+
+            if (m_scene.Permissions.CanEditParcelProperties(remote_client.AgentId,this, GroupPowers.SetLandingPoint))
+            {
                 newData.LandingType = args.LandingType;
+                newData.UserLocation = args.UserLocation;
+                newData.UserLookAt = args.UserLookAt;
+            }
+
+            if (m_scene.Permissions.CanEditParcelProperties(remote_client.AgentId,this, GroupPowers.ChangeMedia))
+            {
                 newData.MediaAutoScale = args.MediaAutoScale;
                 newData.MediaID = args.MediaID;
                 newData.MediaURL = args.MediaURL;
                 newData.MusicURL = args.MusicURL;
-                newData.Name = args.Name;
-                newData.Flags = args.ParcelFlags;
-                newData.PassHours = args.PassHours;
-                newData.PassPrice = args.PassPrice;
-                newData.SnapshotID = args.SnapshotID;
-                newData.UserLocation = args.UserLocation;
-                newData.UserLookAt = args.UserLookAt;
                 newData.MediaType = args.MediaType;
                 newData.MediaDescription = args.MediaDescription;
                 newData.MediaWidth = args.MediaWidth;
@@ -237,10 +283,40 @@ namespace OpenSim.Region.CoreModules.World.Land
                 newData.ObscureMusic = args.ObscureMusic;
                 newData.ObscureMedia = args.ObscureMedia;
 
-                m_scene.LandChannel.UpdateLandObject(LandData.LocalID, newData);
+                allowedDelta |= (uint)(ParcelFlags.SoundLocal |
+                        ParcelFlags.UrlWebPage |
+                        ParcelFlags.UrlRawHtml |
+                        ParcelFlags.AllowVoiceChat |
+                        ParcelFlags.UseEstateVoiceChan);
+            }
+
+            if (m_scene.Permissions.CanEditParcelProperties(remote_client.AgentId,this, GroupPowers.LandManagePasses))
+            {
+                newData.PassHours = args.PassHours;
+                newData.PassPrice = args.PassPrice;
+
+                allowedDelta |= (uint)ParcelFlags.UsePassList;
+            }
+
+            if (m_scene.Permissions.CanEditParcelProperties(remote_client.AgentId, this, GroupPowers.LandManageAllowed))
+            {
+                allowedDelta |= (uint)(ParcelFlags.UseAccessGroup |
+                        ParcelFlags.UseAccessList);
+            }
 
-                SendLandUpdateToAvatarsOverMe(snap_selection);
+            if (m_scene.Permissions.CanEditParcelProperties(remote_client.AgentId, this, GroupPowers.LandManageBanned))
+            {
+                allowedDelta |= (uint)(ParcelFlags.UseBanList |
+                        ParcelFlags.DenyAnonymous |
+                        ParcelFlags.DenyAgeUnverified);
             }
+
+            uint preserve = LandData.Flags & ~allowedDelta;
+            newData.Flags = preserve | (args.ParcelFlags & allowedDelta);
+
+            m_scene.LandChannel.UpdateLandObject(LandData.LocalID, newData);
+
+            SendLandUpdateToAvatarsOverMe(snap_selection);
         }
 
         public void UpdateLandSold(UUID avatarID, UUID groupID, bool groupOwned, uint AuctionID, int claimprice, int area)
@@ -326,14 +402,14 @@ namespace OpenSim.Region.CoreModules.World.Land
 
             if ((LandData.Flags & (uint) ParcelFlags.UseBanList) > 0)
             {
-                ParcelManager.ParcelAccessEntry entry = new ParcelManager.ParcelAccessEntry();
-                entry.AgentID = avatar;
-                entry.Flags = AccessList.Ban;
-                entry.Time = new DateTime();
-                //See if they are on the list, but make sure the owner isn't banned
-                if (LandData.ParcelAccessList.Contains(entry) && LandData.OwnerID != avatar)
+                if (LandData.ParcelAccessList.FindIndex(
+                        delegate(ParcelManager.ParcelAccessEntry e)
+                        {
+                            if (e.AgentID == avatar && e.Flags == AccessList.Ban)
+                                return true;
+                            return false;
+                        }) != -1 && LandData.OwnerID != avatar)
                 {
-                    //They are banned, so lets send them a notice about this parcel
                     return true;
                 }
             }
@@ -347,17 +423,16 @@ namespace OpenSim.Region.CoreModules.World.Land
 
             if ((LandData.Flags & (uint) ParcelFlags.UseAccessList) > 0)
             {
-                ParcelManager.ParcelAccessEntry entry = new ParcelManager.ParcelAccessEntry();
-                entry.AgentID = avatar;
-                entry.Flags = AccessList.Access;
-                entry.Time = new DateTime();
-
-                //If they are not on the access list and are not the owner
-                if (!LandData.ParcelAccessList.Contains(entry) && LandData.OwnerID != avatar)
+                if (LandData.ParcelAccessList.FindIndex(
+                        delegate(ParcelManager.ParcelAccessEntry e)
+                        {
+                            if (e.AgentID == avatar && e.Flags == AccessList.Access)
+                                return true;
+                            return false;
+                        }) == -1 && LandData.OwnerID != avatar)
                 {
                     if (!HasGroupAccess(avatar))
                     {
-                        //They are not allowed in this parcel, but not banned, so lets send them a notice about this parcel
                         return true;
                     }
                 }
@@ -456,39 +531,50 @@ namespace OpenSim.Region.CoreModules.World.Land
             }
         }
 
-        public void UpdateAccessList(uint flags, List<ParcelManager.ParcelAccessEntry> entries, IClientAPI remote_client)
+        public void UpdateAccessList(uint flags, UUID transactionID,
+                int sequenceID, int sections,
+                List<ParcelManager.ParcelAccessEntry> entries,
+                IClientAPI remote_client)
         {
             LandData newData = LandData.Copy();
 
-            if (entries.Count == 1 && entries[0].AgentID == UUID.Zero)
+            if ((!m_listTransactions.ContainsKey(flags)) ||
+                    m_listTransactions[flags] != transactionID)
             {
-                entries.Clear();
-            }
+                m_listTransactions[flags] = transactionID;
 
-            List<ParcelManager.ParcelAccessEntry> toRemove = new List<ParcelManager.ParcelAccessEntry>();
-            foreach (ParcelManager.ParcelAccessEntry entry in newData.ParcelAccessList)
-            {
-                if (entry.Flags == (AccessList)flags)
+                List<ParcelManager.ParcelAccessEntry> toRemove =
+                        new List<ParcelManager.ParcelAccessEntry>();
+
+                foreach (ParcelManager.ParcelAccessEntry entry in newData.ParcelAccessList)
                 {
-                    toRemove.Add(entry);
+                    if (entry.Flags == (AccessList)flags)
+                        toRemove.Add(entry);
                 }
-            }
 
-            foreach (ParcelManager.ParcelAccessEntry entry in toRemove)
-            {
-                newData.ParcelAccessList.Remove(entry);
+                foreach (ParcelManager.ParcelAccessEntry entry in toRemove)
+                {
+                    newData.ParcelAccessList.Remove(entry);
+                }
+
+                // Checked here because this will always be the first
+                // and only packet in a transaction
+                if (entries.Count == 1 && entries[0].AgentID == UUID.Zero)
+                {
+                    return;
+                }
             }
+
             foreach (ParcelManager.ParcelAccessEntry entry in entries)
             {
-                ParcelManager.ParcelAccessEntry temp = new ParcelManager.ParcelAccessEntry();
+                ParcelManager.ParcelAccessEntry temp =
+                        new ParcelManager.ParcelAccessEntry();
+
                 temp.AgentID = entry.AgentID;
-                temp.Time = new DateTime(); //Pointless? Yes.
+                temp.Time = entry.Time;
                 temp.Flags = (AccessList)flags;
 
-                if (!newData.ParcelAccessList.Contains(temp))
-                {
-                    newData.ParcelAccessList.Add(temp);
-                }
+                newData.ParcelAccessList.Add(temp);
             }
 
             m_scene.LandChannel.UpdateLandObject(LandData.LocalID, newData);
@@ -746,7 +832,7 @@ namespace OpenSim.Region.CoreModules.World.Land
 
         public void SendForceObjectSelect(int local_id, int request_type, List<UUID> returnIDs, IClientAPI remote_client)
         {
-            if (m_scene.Permissions.CanEditParcel(remote_client.AgentId, this))
+            if (m_scene.Permissions.CanEditParcelProperties(remote_client.AgentId, this, GroupPowers.LandOptions))
             {
                 List<uint> resultLocalIDs = new List<uint>();
                 try
@@ -796,7 +882,7 @@ namespace OpenSim.Region.CoreModules.World.Land
         /// </param>
         public void SendLandObjectOwners(IClientAPI remote_client)
         {
-            if (m_scene.Permissions.CanEditParcel(remote_client.AgentId, this))
+            if (m_scene.Permissions.CanEditParcelProperties(remote_client.AgentId, this, GroupPowers.LandOptions))
             {
                 Dictionary<UUID, int> primCount = new Dictionary<UUID, int>();
                 List<UUID> groups = new List<UUID>();
diff --git a/OpenSim/Region/CoreModules/World/Permissions/PermissionsModule.cs b/OpenSim/Region/CoreModules/World/Permissions/PermissionsModule.cs
index 289741f..f9b2384 100644
--- a/OpenSim/Region/CoreModules/World/Permissions/PermissionsModule.cs
+++ b/OpenSim/Region/CoreModules/World/Permissions/PermissionsModule.cs
@@ -37,56 +37,6 @@ using OpenSim.Region.Framework.Interfaces;
 using OpenSim.Region.Framework.Scenes;
 using OpenSim.Services.Interfaces;
 
-// Temporary fix of wrong GroupPowers constants in OpenMetaverse library
-enum GroupPowers : long
-     {
-        None = 0,
-        LandEjectAndFreeze = 1,
-        Invite = 2,
-        ReturnGroupSet = 2,
-        Eject = 4,
-        ReturnNonGroup = 4,
-        ChangeOptions = 8,
-        LandGardening = 8,
-        CreateRole = 16,
-        DeedObject = 16,
-        ModerateChat = 32,
-        DeleteRole = 32,
-        RoleProperties = 64,
-        ObjectManipulate = 64,
-        ObjectSetForSale = 128,
-        AssignMemberLimited = 128,
-        AssignMember = 256,
-        Accountable = 256,
-        RemoveMember = 512,
-        SendNotices = 1024,
-        ChangeActions = 1024,
-        ChangeIdentity = 2048,
-        ReceiveNotices = 2048,
-        StartProposal = 4096,
-        LandDeed = 4096,
-        VoteOnProposal = 8192,
-        LandRelease = 8192,
-        LandSetSale = 16384,
-        LandDivideJoin = 32768,
-        ReturnGroupOwned = 65536,
-        JoinChat = 65536,
-        FindPlaces = 131072,
-        LandChangeIdentity = 262144,
-        SetLandingPoint = 524288,
-        ChangeMedia = 1048576,
-        LandEdit = 2097152,
-        LandOptions = 4194304,
-        AllowEditLand = 8388608,
-        AllowFly = 16777216,
-        AllowRez = 33554432,
-        AllowLandmark = 67108864,
-        AllowVoiceChat = 134217728,
-        AllowSetHome = 268435456,
-        LandManageAllowed = 536870912,
-        LandManageBanned = 1073741824
-     }
-
 namespace OpenSim.Region.CoreModules.World.Permissions
 {
     public class PermissionsModule : IRegionModule
@@ -214,7 +164,7 @@ namespace OpenSim.Region.CoreModules.World.Permissions
             m_scene.Permissions.OnDuplicateObject += CanDuplicateObject;
             m_scene.Permissions.OnDeleteObject += CanDeleteObject; //MAYBE FULLY IMPLEMENTED
             m_scene.Permissions.OnEditObject += CanEditObject; //MAYBE FULLY IMPLEMENTED
-            m_scene.Permissions.OnEditParcel += CanEditParcel; //MAYBE FULLY IMPLEMENTED
+            m_scene.Permissions.OnEditParcelProperties += CanEditParcelProperties; //MAYBE FULLY IMPLEMENTED
             m_scene.Permissions.OnInstantMessage += CanInstantMessage;
             m_scene.Permissions.OnInventoryTransfer += CanInventoryTransfer; //NOT YET IMPLEMENTED
             m_scene.Permissions.OnIssueEstateCommand += CanIssueEstateCommand; //FULLY IMPLEMENTED
@@ -1005,12 +955,12 @@ namespace OpenSim.Region.CoreModules.World.Permissions
             return GenericObjectPermission(editorID, objectID, false);
         }
 
-        private bool CanEditParcel(UUID user, ILandObject parcel, Scene scene)
+        private bool CanEditParcelProperties(UUID user, ILandObject parcel, GroupPowers p, Scene scene)
         {
             DebugPermissionInformation(MethodInfo.GetCurrentMethod().Name);
             if (m_bypassPermissions) return m_bypassPermissionsValue;
 
-            return GenericParcelOwnerPermission(user, parcel, (ulong)GroupPowers.LandDivideJoin);
+            return GenericParcelOwnerPermission(user, parcel, (ulong)p);
         }
 
         /// <summary>
diff --git a/OpenSim/Region/Framework/Interfaces/ILandObject.cs b/OpenSim/Region/Framework/Interfaces/ILandObject.cs
index 084184f..585eb00 100644
--- a/OpenSim/Region/Framework/Interfaces/ILandObject.cs
+++ b/OpenSim/Region/Framework/Interfaces/ILandObject.cs
@@ -57,7 +57,7 @@ namespace OpenSim.Region.Framework.Interfaces
         void SendLandUpdateToClient(bool snap_selection, IClientAPI remote_client);
         List<UUID> CreateAccessListArrayByFlag(AccessList flag);
         void SendAccessList(UUID agentID, UUID sessionID, uint flags, int sequenceID, IClientAPI remote_client);
-        void UpdateAccessList(uint flags, List<ParcelManager.ParcelAccessEntry> entries, IClientAPI remote_client);
+        void UpdateAccessList(uint flags, UUID transactionID, int sequenceID, int sections, List<ParcelManager.ParcelAccessEntry> entries, IClientAPI remote_client);
         void UpdateLandBitmapByteArray();
         void SetLandBitmapFromByteArray();
         bool[,] GetLandBitmap();
diff --git a/OpenSim/Region/Framework/Scenes/Scene.Permissions.cs b/OpenSim/Region/Framework/Scenes/Scene.Permissions.cs
index ab0eed8..1295e58 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.Permissions.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.Permissions.cs
@@ -722,20 +722,6 @@ namespace OpenSim.Region.Framework.Scenes
         #endregion
 
         #region EDIT PARCEL
-        public bool CanEditParcel(UUID user, ILandObject parcel)
-        {
-            EditParcelHandler handler = OnEditParcel;
-            if (handler != null)
-            {
-                Delegate[] list = handler.GetInvocationList();
-                foreach (EditParcelHandler h in list)
-                {
-                    if (h(user, parcel, m_scene) == false)
-                        return false;
-                }
-            }
-            return true;
-        }
 
         public bool CanEditParcelProperties(UUID user, ILandObject parcel, GroupPowers p)
         {
diff --git a/OpenSim/Region/RegionCombinerModule/RegionCombinerModule.cs b/OpenSim/Region/RegionCombinerModule/RegionCombinerModule.cs
index d854176..3edc3a2 100644
--- a/OpenSim/Region/RegionCombinerModule/RegionCombinerModule.cs
+++ b/OpenSim/Region/RegionCombinerModule/RegionCombinerModule.cs
@@ -919,7 +919,7 @@ namespace OpenSim.Region.RegionCombinerModule
             VirtualRegion.Permissions.OnDuplicateObject += BigRegion.PermissionModule.CanDuplicateObject;
             VirtualRegion.Permissions.OnDeleteObject += BigRegion.PermissionModule.CanDeleteObject; //MAYBE FULLY IMPLEMENTED
             VirtualRegion.Permissions.OnEditObject += BigRegion.PermissionModule.CanEditObject; //MAYBE FULLY IMPLEMENTED
-            VirtualRegion.Permissions.OnEditParcel += BigRegion.PermissionModule.CanEditParcel; //MAYBE FULLY IMPLEMENTED
+            VirtualRegion.Permissions.OnEditParcelProperties += BigRegion.PermissionModule.CanEditParcelProperties; //MAYBE FULLY IMPLEMENTED
             VirtualRegion.Permissions.OnInstantMessage += BigRegion.PermissionModule.CanInstantMessage;
             VirtualRegion.Permissions.OnInventoryTransfer += BigRegion.PermissionModule.CanInventoryTransfer; //NOT YET IMPLEMENTED
             VirtualRegion.Permissions.OnIssueEstateCommand += BigRegion.PermissionModule.CanIssueEstateCommand; //FULLY IMPLEMENTED
diff --git a/OpenSim/Region/RegionCombinerModule/RegionCombinerPermissionModule.cs b/OpenSim/Region/RegionCombinerModule/RegionCombinerPermissionModule.cs
index 393322d..7c662c9 100644
--- a/OpenSim/Region/RegionCombinerModule/RegionCombinerPermissionModule.cs
+++ b/OpenSim/Region/RegionCombinerModule/RegionCombinerPermissionModule.cs
@@ -105,9 +105,9 @@ namespace OpenSim.Region.RegionCombinerModule
             return m_rootScene.Permissions.CanEditObject(objectid, editorid);
         }
 
-        public bool CanEditParcel(UUID user, ILandObject parcel, Scene scene)
+        public bool CanEditParcelProperties(UUID user, ILandObject parcel, GroupPowers g, Scene scene)
         {
-            return m_rootScene.Permissions.CanEditParcel(user, parcel);
+            return m_rootScene.Permissions.CanEditParcelProperties(user, parcel, g);
         }
 
         public bool CanInstantMessage(UUID user, UUID target, Scene startscene)
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
index 05a4170..835f274 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
@@ -6653,16 +6653,25 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         {
             m_host.AddScriptLPS(1);
             UUID key;
-            LandData land = World.LandChannel.GetLandObject(m_host.AbsolutePosition.X, m_host.AbsolutePosition.Y).LandData;
-            if (land.OwnerID == m_host.OwnerID)
+            ILandObject land = World.LandChannel.GetLandObject(m_host.AbsolutePosition.X, m_host.AbsolutePosition.Y);
+            if (World.Permissions.CanEditParcelProperties(m_host.OwnerID, land, GroupPowers.LandManageAllowed))
             {
                 ParcelManager.ParcelAccessEntry entry = new ParcelManager.ParcelAccessEntry();
                 if (UUID.TryParse(avatar, out key))
                 {
-                    entry.AgentID = key;
-                    entry.Flags = AccessList.Access;
-                    entry.Time = DateTime.Now.AddHours(hours);
-                    land.ParcelAccessList.Add(entry);
+                    if (land.LandData.ParcelAccessList.FindIndex(
+                            delegate(ParcelManager.ParcelAccessEntry e)
+                            {
+                                if (e.AgentID == key && e.Flags == AccessList.Access)
+                                    return true;
+                                return false;
+                            }) == -1)
+                    {
+                        entry.AgentID = key;
+                        entry.Flags = AccessList.Access;
+                        entry.Time = DateTime.Now.AddHours(hours);
+                        land.LandData.ParcelAccessList.Add(entry);
+                    }
                 }
             }
             ScriptSleep(100);
@@ -9493,7 +9502,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             // according to the docs, this command only works if script owner and land owner are the same
             // lets add estate owners and gods, too, and use the generic permission check.
             ILandObject landObject = World.LandChannel.GetLandObject(m_host.AbsolutePosition.X, m_host.AbsolutePosition.Y);
-            if (!World.Permissions.CanEditParcel(m_host.OwnerID, landObject)) return;
+            if (!World.Permissions.CanEditParcelProperties(m_host.OwnerID, landObject, GroupPowers.ChangeMedia)) return;
 
             bool update = false; // send a ParcelMediaUpdate (and possibly change the land's media URL)?
             byte loop = 0;
@@ -9957,16 +9966,25 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         {
             m_host.AddScriptLPS(1);
             UUID key;
-            LandData land = World.LandChannel.GetLandObject(m_host.AbsolutePosition.X, m_host.AbsolutePosition.Y).LandData;
-            if (land.OwnerID == m_host.OwnerID)
+            ILandObject land = World.LandChannel.GetLandObject(m_host.AbsolutePosition.X, m_host.AbsolutePosition.Y);
+            if (World.Permissions.CanEditParcelProperties(m_host.OwnerID, land, GroupPowers.LandManageBanned))
             {
                 ParcelManager.ParcelAccessEntry entry = new ParcelManager.ParcelAccessEntry();
                 if (UUID.TryParse(avatar, out key))
                 {
-                    entry.AgentID = key;
-                    entry.Flags = AccessList.Ban;
-                    entry.Time = DateTime.Now.AddHours(hours);
-                    land.ParcelAccessList.Add(entry);
+                    if (land.LandData.ParcelAccessList.FindIndex(
+                            delegate(ParcelManager.ParcelAccessEntry e)
+                            {
+                                if (e.AgentID == key && e.Flags == AccessList.Ban)
+                                    return true;
+                                return false;
+                            }) == -1)
+                    {
+                        entry.AgentID = key;
+                        entry.Flags = AccessList.Ban;
+                        entry.Time = DateTime.Now.AddHours(hours);
+                        land.LandData.ParcelAccessList.Add(entry);
+                    }
                 }
             }
             ScriptSleep(100);
@@ -9976,19 +9994,21 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         {
             m_host.AddScriptLPS(1);
             UUID key;
-            LandData land = World.LandChannel.GetLandObject(m_host.AbsolutePosition.X, m_host.AbsolutePosition.Y).LandData;
-            if (land.OwnerID == m_host.OwnerID)
+            ILandObject land = World.LandChannel.GetLandObject(m_host.AbsolutePosition.X, m_host.AbsolutePosition.Y);
+            if (World.Permissions.CanEditParcelProperties(m_host.OwnerID, land, GroupPowers.LandManageAllowed))
             {
                 if (UUID.TryParse(avatar, out key))
                 {
-                    foreach (ParcelManager.ParcelAccessEntry entry in land.ParcelAccessList)
-                    {
-                        if (entry.AgentID == key && entry.Flags == AccessList.Access)
-                        {
-                            land.ParcelAccessList.Remove(entry);
-                            break;
-                        }
-                    }
+                    int idx = land.LandData.ParcelAccessList.FindIndex(
+                            delegate(ParcelManager.ParcelAccessEntry e)
+                            {
+                                if (e.AgentID == key && e.Flags == AccessList.Access)
+                                    return true;
+                                return false;
+                            });
+
+                    if (idx != -1)
+                        land.LandData.ParcelAccessList.RemoveAt(idx);
                 }
             }
             ScriptSleep(100);
@@ -9998,19 +10018,21 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         {
             m_host.AddScriptLPS(1);
             UUID key;
-            LandData land = World.LandChannel.GetLandObject(m_host.AbsolutePosition.X, m_host.AbsolutePosition.Y).LandData;
-            if (land.OwnerID == m_host.OwnerID)
+            ILandObject land = World.LandChannel.GetLandObject(m_host.AbsolutePosition.X, m_host.AbsolutePosition.Y);
+            if (World.Permissions.CanEditParcelProperties(m_host.OwnerID, land, GroupPowers.LandManageBanned))
             {
                 if (UUID.TryParse(avatar, out key))
                 {
-                    foreach (ParcelManager.ParcelAccessEntry entry in land.ParcelAccessList)
-                    {
-                        if (entry.AgentID == key && entry.Flags == AccessList.Ban)
-                        {
-                            land.ParcelAccessList.Remove(entry);
-                            break;
-                        }
-                    }
+                    int idx = land.LandData.ParcelAccessList.FindIndex(
+                            delegate(ParcelManager.ParcelAccessEntry e)
+                            {
+                                if (e.AgentID == key && e.Flags == AccessList.Ban)
+                                    return true;
+                                return false;
+                            });
+
+                    if (idx != -1)
+                        land.LandData.ParcelAccessList.RemoveAt(idx);
                 }
             }
             ScriptSleep(100);
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
index ecd2d6f..712648d 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
@@ -1342,7 +1342,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 return;
             }
 
-            if (! World.Permissions.CanEditParcel(m_host.OwnerID, startLandObject))
+            if (!World.Permissions.CanEditParcelProperties(m_host.OwnerID, startLandObject, GroupPowers.LandOptions))
             {
                 OSSLShoutError("You do not have permission to modify the parcel");
                 return;