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/*
* Copyright (c) 2019, 2020, 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 8246774
* @summary Verifies that privileged operations performed in the record
* constructor throw, when run without the required permissions
* @run testng/othervm/java.security.policy=empty_security.policy ConstructorPermissionTest
*/
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InvalidObjectException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.net.Socket;
import java.nio.file.Files;
import java.nio.file.Path;
import java.security.AccessControlException;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import static java.lang.System.out;
import static org.testng.Assert.assertTrue;
import static org.testng.Assert.expectThrows;
/**
* Ensures that the appropriate exception, invalid object exception, with a
* suitable cause, is thrown when the record constructor performs a privileged
* operation without permission.
*/
public class ConstructorPermissionTest {
/** "big switch" that can be used to allow/disallow record construction
* set to true after the data provider has constructed all record objects */
private static volatile boolean firstDataSetCreated;
record R1 () implements Serializable {
public R1 {
if (firstDataSetCreated) {
try { Files.list(Path.of(".")); }
catch (IOException unexpected) { throw new AssertionError(unexpected); }
}
}
}
record R2 (int x) implements Serializable {
public R2 {
if (firstDataSetCreated) {
try { new Socket("localhost", 8080); }
catch (IOException unexpected) { throw new AssertionError(unexpected); }
}
}
}
record R3 (String... args) implements Serializable {
public R3 {
if (firstDataSetCreated)
ProcessHandle.current();
}
}
static final Class<InvalidObjectException> IOE = InvalidObjectException.class;
@DataProvider(name = "exceptionInstances")
public Object[][] exceptionInstances() {
var objs = new Object[][] {
new Object[] { new R1(), AccessControlException.class, "FilePermission" },
new Object[] { new R2(1), AccessControlException.class, "SocketPermission" },
new Object[] { new R3("s"), AccessControlException.class, "manageProcess" },
};
firstDataSetCreated = true;
return objs;
}
@Test(dataProvider = "exceptionInstances")
public void testExceptions(Object objectToSerialize,
Class<? extends Throwable> expectedExType,
String expectedExMessage)
throws Exception
{
out.println("\n---");
out.println("serializing: " + objectToSerialize);
byte[] bytes = serialize(objectToSerialize);
InvalidObjectException ioe = expectThrows(IOE, () -> deserialize(bytes));
out.println("caught expected IOE: " + ioe);
Throwable t = ioe.getCause();
assertTrue(t.getClass().equals(expectedExType),
"Expected:" + expectedExType + ", got:" + t);
out.println("expected cause " + expectedExType +" : " + t);
String msg = t.getMessage();
assertTrue(msg.contains(expectedExMessage),
"Expected message to contain [" + expectedExMessage + "], in " + msg);
}
// TODO: add positive tests with permissions granted.
// --- infra
static <T> byte[] serialize(T obj) throws IOException {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(baos);
oos.writeObject(obj);
oos.close();
return baos.toByteArray();
}
@SuppressWarnings("unchecked")
static <T> T deserialize(byte[] streamBytes)
throws IOException, ClassNotFoundException
{
ByteArrayInputStream bais = new ByteArrayInputStream(streamBytes);
ObjectInputStream ois = new ObjectInputStream(bais);
return (T) ois.readObject();
}
}
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