1 /* 2 * Copyright (c) 2002, 2018, 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 /* 25 * @test 26 * @bug 8208279 27 * @summary If DNS name resolution is configured normally for SWAN on the local 28 * machine, construct a context using the configured servers and verify 29 * that a PROVIDER_URL property is generated for the context. 30 * If DNS is not configured, or if JDK version is earlier than 1.4.1, 31 * then this test is a no-op (it passes without doing anything). 32 * @library ../lib/ 33 * @modules jdk.naming.dns/com.sun.jndi.dns 34 * java.base/sun.security.util 35 * @run main ProviderUrlGen 36 */ 37 38 import javax.naming.Context; 39 import javax.naming.directory.InitialDirContext; 40 41 public class ProviderUrlGen extends DNSTestBase { 42 43 public ProviderUrlGen() { 44 setLocalServer(false); 45 } 46 47 public static void main(String[] args) throws Exception { 48 if (!isPlatformServersAvailable()) { 49 DNSTestUtils.debug("DNS not configured. There's nothing to test."); 50 return; 51 } 52 53 new ProviderUrlGen().run(args); 54 } 55 56 @Override public void runTest() throws Exception { 57 initContext(); 58 59 String providerUrl = (String) context().getEnvironment() 60 .get(Context.PROVIDER_URL); 61 62 if (providerUrl == null) { 63 throw new RuntimeException("Failed: PROVIDER_URL not set"); 64 } 65 66 DNSTestUtils.debug("PROVIDER_URL = \"" + providerUrl + "\""); 67 68 // We don't know exactly what providerUrl's value should be. 69 // Check that it is a space-separated list of one or more URLs 70 // of the form "dns://xxxxxx". 71 72 String[] urls = providerUrl.split(" "); 73 if (urls.length < 1) { 74 throw new RuntimeException("Failed: PROVIDER_URL is empty"); 75 } 76 77 for (String url : urls) { 78 DNSTestUtils.debug(url); 79 if (!checkUrl(url)) { 80 throw new RuntimeException( 81 "Failed: Unexpected DNS URL: " + url); 82 } 83 } 84 } 85 86 private void initContext() throws Exception { 87 env().remove(Context.PROVIDER_URL); 88 setContext(new InitialDirContext(env())); 89 } 90 91 private static boolean checkUrl(String url) { 92 return url.startsWith("dns://") && url.length() >= 7; 93 } 94 95 private static boolean isPlatformServersAvailable() { 96 try { 97 java.lang.reflect.Method psa = com.sun.jndi.dns.DnsContextFactory.class 98 .getMethod("platformServersAvailable", null); 99 return (Boolean) psa.invoke(null, null); 100 } catch (Exception e) { 101 e.printStackTrace(); 102 return false; 103 } 104 } 105 }