| /* |
| * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.rmi.server; |
| |
| import java.io.ObjectStreamClass; |
| import java.lang.reflect.Method; |
| |
| /** |
| * Implementing this interface to have a deserialization control when RMI |
| * dispatches a remote request. If an exported object implements this interface, |
| * RMI dispatching mechanism will call the method {@code check} every time |
| * deserialising a remote object for invoking a method of the exported object. |
| * |
| * @author sjiang |
| */ |
| public interface DeserializationChecker { |
| /** |
| * Will be called to check a descriptor. |
| * This method may be called 2 times, the first time is when a descriptor is read |
| * from the stream, the second is just before creating an object described |
| * by this descriptor. |
| * |
| * @param method the method invoked from a remote request. |
| * @param descriptor The descriptor of the class of any object deserialised |
| * while deserialising the parameter. The first descriptor will be that of |
| * the top level object (the concrete class of the parameter itself); |
| * Subsequent calls with the same {@code method}, {@code paramIndex} and |
| * {@code callID} will correspond to objects contained in the parameter. |
| * @param paramIndex an index indicates the position of a parameter in the |
| * method. This index will be reused for deserialising all |
| * objects contained in the parameter object. For example, the parameter |
| * being deserialised is a {@code List}, all deserialisation calls for its |
| * elements will have same index. |
| * @param callID a unique ID identifying one |
| * time method invocation, the same ID is used for deserialization call of |
| * all parameters within the method. |
| */ |
| public void check(Method method, |
| ObjectStreamClass descriptor, |
| int paramIndex, |
| int callID); |
| |
| /** |
| * Will be called to validate a Proxy interfaces from a remote user before loading it. |
| * @param method the method invoked from a remote request. |
| * @param ifaces a string table of all interfaces implemented by the proxy to be checked. |
| * @param paramIndex an index indicates the position of a parameter in the |
| * method. This index will be reused for deserialising all |
| * objects contained in the parameter object. For example, the parameter |
| * being deserialised is a {@code List}, all deserialisation calls for its |
| * elements will have same index. |
| * @param callID a unique ID identifying one |
| * time method invocation, the same ID is used for deserialization call of |
| * all parameters within the method. |
| */ |
| public void checkProxyClass(Method method, |
| String[] ifaces, |
| int paramIndex, |
| int callID); |
| |
| /** |
| * Inform of the completion of parameter deserialisation for a method invocation. |
| * This is useful if the last parameter is a complex object, like a {@code List} |
| * which elements are complex object too. |
| * |
| * The default implementation does nothing. |
| * @param callID the ID identifying a method invocation. |
| */ |
| public default void end(int callID) {} |
| } |