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.

3 files changed, 170 insertions, 120 deletions

diff --git a/OpenSim/Region/CoreModules/World/Land/LandManagementModule.cs b/OpenSim/Region/CoreModules/World/Land/LandManagementModule.cs
index 695202f..ac4705c 100644
--- a/OpenSim/Region/CoreModules/World/Land/LandManagementModule.cs
+++ b/OpenSim/Region/CoreModules/World/Land/LandManagementModule.cs
@@ -159,7 +159,7 @@ 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;
@@ -508,14 +508,22 @@ 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)
             {
@@ -524,9 +532,15 @@ 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
@@ -854,7 +868,7 @@ 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;
             }
@@ -922,7 +936,7 @@ 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;
             }
@@ -1570,7 +1584,7 @@ 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;
diff --git a/OpenSim/Region/CoreModules/World/Land/LandObject.cs b/OpenSim/Region/CoreModules/World/Land/LandObject.cs
index d87352f..801d3a4 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)
@@ -295,14 +371,14 @@ 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;
                 }
             }
@@ -316,15 +392,14 @@ 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)
                 {
-                    //They are not allowed in this parcel, but not banned, so lets send them a notice about this parcel
                     return true;
                 }
             }
@@ -421,39 +496,50 @@ 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);
@@ -711,7 +797,7 @@ 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
@@ -761,7 +847,7 @@ 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 f5f3839..364dd6c 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>