| /* |
| * Copyright (c) 2000, 2010, 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. |
| * |
| * 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. |
| */ |
| |
| /* @test |
| * @bug 4311940 |
| * @summary Verify that unauthorized ObjectOutputStream and ObjectInputStream |
| * cannot be constructed if they override security-sensitive non-final |
| * methods. |
| * @build AuditStreamSubclass |
| * @run main/othervm AuditStreamSubclass |
| */ |
| import java.io.*; |
| |
| class GoodOOS1 extends ObjectOutputStream { |
| GoodOOS1(OutputStream out) throws IOException { super(out); } |
| } |
| |
| class GoodOOS2 extends GoodOOS1 { |
| GoodOOS2(OutputStream out) throws IOException { super(out); } |
| } |
| |
| class BadOOS1 extends ObjectOutputStream { |
| BadOOS1(OutputStream out) throws IOException { super(out); } |
| public PutField putFields() throws IOException { return null; } |
| } |
| |
| class BadOOS2 extends ObjectOutputStream { |
| BadOOS2(OutputStream out) throws IOException { super(out); } |
| public void writeUnshared(Object obj) throws IOException {} |
| } |
| |
| class BadOOS3 extends GoodOOS1 { |
| BadOOS3(OutputStream out) throws IOException { super(out); } |
| public void writeUnshared(Object obj) throws IOException {} |
| } |
| |
| |
| class GoodOIS1 extends ObjectInputStream { |
| GoodOIS1(InputStream in) throws IOException { super(in); } |
| } |
| |
| class GoodOIS2 extends GoodOIS1 { |
| GoodOIS2(InputStream in) throws IOException { super(in); } |
| } |
| |
| class BadOIS1 extends ObjectInputStream { |
| BadOIS1(InputStream in) throws IOException { super(in); } |
| public GetField readFields() throws IOException, ClassNotFoundException { |
| return null; |
| } |
| } |
| |
| class BadOIS2 extends ObjectInputStream { |
| BadOIS2(InputStream in) throws IOException { super(in); } |
| public Object readUnshared() throws IOException, ClassNotFoundException { |
| return null; |
| } |
| } |
| |
| class BadOIS3 extends GoodOIS1 { |
| BadOIS3(InputStream in) throws IOException { super(in); } |
| public Object readUnshared() throws IOException, ClassNotFoundException { |
| return null; |
| } |
| } |
| |
| public class AuditStreamSubclass { |
| public static void main(String[] args) throws Exception { |
| if (System.getSecurityManager() == null) { |
| System.setSecurityManager(new SecurityManager()); |
| } |
| ByteArrayOutputStream bout = new ByteArrayOutputStream(); |
| ObjectOutputStream oout = new ObjectOutputStream(bout); |
| oout.flush(); |
| byte[] buf = bout.toByteArray(); |
| |
| new GoodOOS1(bout); |
| new GoodOOS2(bout); |
| new GoodOIS1(new ByteArrayInputStream(buf)); |
| new GoodOIS2(new ByteArrayInputStream(buf)); |
| |
| try { |
| new BadOOS1(bout); |
| throw new Error(); |
| } catch (SecurityException ex) { |
| } |
| |
| try { |
| new BadOOS2(bout); |
| throw new Error(); |
| } catch (SecurityException ex) { |
| } |
| |
| try { |
| new BadOOS3(bout); |
| throw new Error(); |
| } catch (SecurityException ex) { |
| } |
| |
| try { |
| new BadOIS1(new ByteArrayInputStream(buf)); |
| throw new Error(); |
| } catch (SecurityException ex) { |
| } |
| |
| try { |
| new BadOIS2(new ByteArrayInputStream(buf)); |
| throw new Error(); |
| } catch (SecurityException ex) { |
| } |
| |
| try { |
| new BadOIS3(new ByteArrayInputStream(buf)); |
| throw new Error(); |
| } catch (SecurityException ex) { |
| } |
| } |
| } |