package appeng.me.cache;
import java.util.ArrayList;
import java.util.EnumSet;
import java.util.HashMap;
import java.util.List;
import net.minecraft.entity.player.EntityPlayer;
import appeng.api.config.SecurityPermissions;
import appeng.api.networking.IGrid;
import appeng.api.networking.IGridHost;
import appeng.api.networking.IGridNode;
import appeng.api.networking.IGridStorage;
import appeng.api.networking.events.MENetworkEventSubscribe;
import appeng.api.networking.events.MENetworkSecurityChange;
import appeng.api.networking.security.ISecurityGrid;
import appeng.api.networking.security.ISecurityProvider;
import appeng.core.WorldSettings;
import appeng.me.GridNode;
public class SecurityCache implements ISecurityGrid
{
final private List<ISecurityProvider> securityProvider = new ArrayList<ISecurityProvider>();
final private HashMap<Integer, EnumSet<SecurityPermissions>> playerPerms = new HashMap<Integer, EnumSet<SecurityPermissions>>();
public SecurityCache(IGrid g) {
myGrid = g;
}
private long securityKey = -1;
public final IGrid myGrid;
@MENetworkEventSubscribe
public void updatePermissions(MENetworkSecurityChange ev)
{
playerPerms.clear();
if ( securityProvider.isEmpty() )
return;
securityProvider.get( 0 ).readPermissions( playerPerms );
}
public long getSecurityKey()
{
return securityKey;
}
@Override
public boolean isAvailable()
{
return securityProvider.size() == 1 && securityProvider.get( 0 ).isSecurityEnabled();
}
@Override
public boolean hasPermission(EntityPlayer player, SecurityPermissions perm)
{
return hasPermission( player == null ? -1 : WorldSettings.getInstance().getPlayerID( player.getGameProfile() ), perm );
}
@Override
public boolean hasPermission(int playerID, SecurityPermissions perm)
{
if ( isAvailable() )
{
EnumSet<SecurityPermissions> perms = playerPerms.get( playerID );
if ( perms == null )
{
if ( playerID == -1 ) // no default?
return false;
else
return hasPermission( -1, perm );
}
return perms.contains( perm );
}
return true;
}
private void updateSecurityKey()
{
long lastCode = securityKey;
if ( securityProvider.size() == 1 )
securityKey = securityProvider.get( 0 ).getSecurityKey();
else
securityKey = -1;
if ( lastCode != securityKey )
{
myGrid.postEvent( new MENetworkSecurityChange() );
for (IGridNode n : myGrid.getNodes())
((GridNode) n).lastSecurityKey = securityKey;
}
}
@Override
public void removeNode(IGridNode gridNode, IGridHost machine)
{
if ( machine instanceof ISecurityProvider )
{
securityProvider.remove( machine );
updateSecurityKey();
}
}
@Override
public void addNode(IGridNode gridNode, IGridHost machine)
{
if ( machine instanceof ISecurityProvider )
{
securityProvider.add( (ISecurityProvider) machine );
updateSecurityKey();
}
else
((GridNode) gridNode).lastSecurityKey = securityKey;
}
@Override
public void onUpdateTick()
{
}
@Override
public void onSplit(IGridStorage destinationStorage)
{
}
@Override
public void onJoin(IGridStorage sourceStorage)
{
}
@Override
public void populateGridStorage(IGridStorage destinationStorage)
{
}
@Override
public int getOwner()
{
if ( isAvailable() )
return securityProvider.get( 0 ).getOwner();
return -1;
}
}