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Implements group based access restrictions for parcels of land. Because of caching there can be a delay of up to 30 seconds until the access rights are effectively changed for a user.

integration
Snoopy Pfeffer 2012-04-05 00:53:40 +02:00
parent 9a9923405a
commit 36c8fa16c0
1 changed files with 57 additions and 1 deletions
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58
OpenSim/Region/CoreModules/World/Land/LandObject.cs
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@ -56,6 +56,12 @@ namespace OpenSim.Region.CoreModules.World.Land
protected List<SceneObjectGroup> primsOverMe = new List<SceneObjectGroup>();
protected Dictionary<uint, UUID> m_listTransactions = new Dictionary<uint, UUID>();
protected IGroupsModule m_groupsModule;
protected const uint PARCEL_FLAG_USE_ACCESS_GROUP = 0x100; // parcel limits access to a group
protected Dictionary<UUID, long> m_isGroupMemberCache = new Dictionary<UUID, long>();
protected Dictionary<UUID, long> m_notGroupMemberCache = new Dictionary<UUID, long>();
protected const long m_groupMemberCacheTimeout = 30; // cache invalidation after 30 seconds
public bool[,] LandBitmap
{
get { return m_landBitmap; }
@ -132,6 +138,8 @@ namespace OpenSim.Region.CoreModules.World.Land
else
LandData.GroupID = UUID.Zero;
LandData.IsGroupOwned = is_group_owned;
m_groupsModule = scene.RequestModuleInterface<IGroupsModule>();
}
#endregion
@ -460,7 +468,55 @@ namespace OpenSim.Region.CoreModules.World.Land
if ((LandData.Flags & (uint) ParcelFlags.UseAccessList) == 0)
return false;
return (!IsInLandAccessList(avatar));
if (IsInLandAccessList(avatar))
return false;
UUID groupID = LandData.GroupID;
if ((m_groupsModule != null) && (groupID != UUID.Zero) && ((LandData.Flags & PARCEL_FLAG_USE_ACCESS_GROUP) == PARCEL_FLAG_USE_ACCESS_GROUP))
{
long now = Util.UnixTimeSinceEpoch();
if (m_isGroupMemberCache.ContainsKey(avatar))
{
if (now - m_isGroupMemberCache[avatar] <= m_groupMemberCacheTimeout) // invalid?
{
m_isGroupMemberCache[avatar] = now;
return false;
}
else
m_isGroupMemberCache.Remove(avatar);
}
if (m_notGroupMemberCache.ContainsKey(avatar))
{
if (now - m_notGroupMemberCache[avatar] <= m_groupMemberCacheTimeout) // invalid?
{
// m_notGroupMemberCache[avatar] = now;
return true;
}
else
m_notGroupMemberCache.Remove(avatar);
}
GroupMembershipData[] GroupMembership = m_groupsModule.GetMembershipData(avatar);
if (GroupMembership != null)
{
for (int i = 0; i < GroupMembership.Length; i++)
{
if (groupID == GroupMembership[i].GroupID)
{
m_isGroupMemberCache[avatar] = now;
return false;
}
}
}
m_notGroupMemberCache[avatar] = now;
}
return true;
}
public bool IsInLandAccessList(UUID avatar)