1 /* 2 * Copyright (c) 2017, 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 * It represents a JDK with some specific attributes. 26 * If two JdkInfo instances have the same version value, the instances are 27 * regarded as equivalent. 28 */ 29 public class JdkInfo { 30 31 public final String jdkPath; 32 33 public final String version; 34 public final boolean supportsECKey; 35 public final boolean supportsSNI; 36 public final boolean supportsALPN; 37 38 public JdkInfo(String jdkPath) throws Throwable { 39 this.jdkPath = jdkPath; 40 41 String output = jdkAttributes(jdkPath); 42 if (output == null || output.trim().isEmpty()) { 43 throw new RuntimeException( 44 "Cannot determine the JDK attributes: " + jdkPath); 45 } 46 47 String[] attributes = Utils.split(output, Utils.PARAM_DELIMITER); 48 version = attributes[0].replaceAll(".*=", ""); 49 supportsECKey = Boolean.valueOf(attributes[1].replaceAll(".*=", "")); 50 supportsSNI = Boolean.valueOf(attributes[2].replaceAll(".*=", "")); 51 supportsALPN = Boolean.valueOf(attributes[3].replaceAll(".*=", "")); 52 } 53 54 // Determines the specific attributes for the specified JDK. 55 private static String jdkAttributes(String jdkPath) throws Throwable { 56 return ProcessUtils.java(jdkPath, null, JdkUtils.class).getOutput(); 57 } 58 59 @Override 60 public int hashCode() { 61 return version == null ? 0 : version.hashCode(); 62 } 63 64 @Override 65 public boolean equals(Object obj) { 66 if (this == obj) { 67 return true; 68 } 69 if (obj == null) { 70 return false; 71 } 72 if (getClass() != obj.getClass()) { 73 return false; 74 } 75 JdkInfo other = (JdkInfo) obj; 76 if (version == null) { 77 if (other.version != null) { 78 return false; 79 } 80 } else if (!version.equals(other.version)) { 81 return false; 82 } 83 return true; 84 } 85 86 public boolean supportsCipherSuite(CipherSuite cipherSuite) { 87 JdkRelease jdkRelease = JdkRelease.getRelease(version); 88 return cipherSuite.startJdk.sequence <= jdkRelease.sequence 89 && (cipherSuite.endJdk == null 90 || cipherSuite.endJdk.sequence >= jdkRelease.sequence); 91 } 92 }