Move some low-level object access control into Presents from Crowd (default all

objects to non-modifiable, restrict client object subscriptions to the client
in question). Modified Peer code to not log a warning when a peer is not online
in an expected way (not listening for connections).


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@4598 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/presents/server/PresentsServer.java

@@ -32,6 +32,7 @@ import com.threerings.util.signal.SignalManager;
 
 import com.threerings.presents.Log;
 import com.threerings.presents.client.Client;
+import com.threerings.presents.dobj.AccessController;
 import com.threerings.presents.server.net.ConnectionManager;
 
 /**
@@ -118,6 +119,9 @@ public class PresentsServer
         // create our distributed object manager
         omgr = createDObjectManager();
 
+        // configure the dobject manager with our access controller
+        omgr.setDefaultAccessController(createDefaultObjectAccessController());
+
         // create and start up our invoker
         invoker = new PresentsInvoker(omgr);
         invoker.start();
@@ -167,6 +171,15 @@ public class PresentsServer
         return new PresentsDObjectMgr();
     }
 
+    /**
+     * Defines the default object access policy for all {@link DObject} instances. The default
+     * default policy is to allow all subscribers but reject all modifications by the client.
+     */
+    protected AccessController createDefaultObjectAccessController ()
+    {
+        return PresentsObjectAccess.DEFAULT;
+    }
+
     /**
      * Returns the port on which the connection manager will listen for
      * client connections.