1 /* 2 * Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 import java.net.InetAddress; 25 import java.net.SocketPermission; 26 import java.net.UnknownHostException; 27 import java.security.Permission; 28 import java.util.logging.Logger; 29 30 import org.testng.Assert; 31 import org.testng.annotations.Test; 32 33 /* 34 * @test 35 * @summary Test that resolution of host name requires SocketPermission("resolve", <host name>) 36 * permission when running with security manager and custom resolver provider installed. 37 * @library lib providers/simple 38 * @build test.library/testlib.ResolutionRegistry simple.provider/impl.SimpleResolverProviderImpl 39 * ResolvePermissionTest 40 * @run testng/othervm -Dtest.dataFileName=nonExistentFile -Djava.security.manager=allow 41 * ResolvePermissionTest 42 */ 43 44 public class ResolvePermissionTest { 45 46 @Test 47 public void withResolvePermission() throws Exception { 48 testResolvePermission(true); 49 } 50 51 @Test 52 public void noResolvePermission() throws Exception { 53 testResolvePermission(false); 54 } 55 56 @SuppressWarnings("removal") 57 private void testResolvePermission(boolean grantResolvePermission) throws Exception { 58 // Set security manager which grants or denies permission to resolve 'javaTest.org' host 59 var securityManager = new ResolvePermissionTest.TestSecurityManager(grantResolvePermission); 60 try { 61 System.setSecurityManager(securityManager); 62 Class expectedExceptionClass = grantResolvePermission ? 63 UnknownHostException.class : SecurityException.class; 64 var exception = Assert.expectThrows(expectedExceptionClass, () -> InetAddress.getByName("javaTest.org")); 65 LOGGER.info("Got expected exception: " + exception); 66 } finally { 67 System.setSecurityManager(null); 68 } 69 } 70 71 static class TestSecurityManager extends SecurityManager { 72 final boolean allowJavaTestOrgResolve; 73 74 public TestSecurityManager(boolean allowJavaTestOrgResolve) { 75 this.allowJavaTestOrgResolve = allowJavaTestOrgResolve; 76 } 77 78 @Override 79 public void checkPermission(Permission permission) { 80 if (permission instanceof java.net.SocketPermission) { 81 SocketPermission sockPerm = (SocketPermission) permission; 82 if ("resolve".equals(sockPerm.getActions())) { 83 String host = sockPerm.getName(); 84 LOGGER.info("Checking 'resolve' SocketPermission: " + permission); 85 if ("javaTest.org".equals(host) && !allowJavaTestOrgResolve) { 86 LOGGER.info("Denying 'resolve' permission for 'javaTest.org'"); 87 throw new SecurityException("Access Denied"); 88 } 89 } 90 } 91 } 92 } 93 94 private static final Logger LOGGER = Logger.getLogger(ResolvePermissionTest.class.getName()); 95 }