131 lines
4.4 KiB
Java
131 lines
4.4 KiB
Java
/*
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* Copyright (c) 2017, 2021, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.nio.file.Path;
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import java.util.Arrays;
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import java.util.LinkedHashMap;
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import java.util.List;
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import java.util.Map;
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/*
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* It represents a JDK with some specific attributes.
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* If two JdkInfo instances have the same version value, the instances are
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* regarded as equivalent.
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*/
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public class JdkInfo {
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public static final JdkInfo DEFAULT = new JdkInfo(Jdk.DEFAULT.getPath());
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public final Path javaPath;
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public final String version;
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public final List<String> supportedProtocols;
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public final List<String> enabledProtocols;
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public final List<String> supportedCipherSuites;
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public final List<String> enabledCipherSuites;
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public final boolean supportsSNI;
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public final boolean supportsALPN;
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public JdkInfo(Path javaPath) {
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this.javaPath = javaPath;
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String output = jdkAttributes(javaPath);
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if (output == null || output.trim().isEmpty()) {
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throw new RuntimeException(
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"Cannot determine the JDK attributes: " + javaPath);
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}
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String[] attributes = Utilities.split(output, Utilities.PARAM_DELIMITER);
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version = parseAttribute(attributes[0]);
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supportedProtocols = parseListAttribute(attributes[1]);
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enabledProtocols = parseListAttribute(attributes[2]);
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supportedCipherSuites = parseListAttribute(attributes[3]);
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enabledCipherSuites = parseListAttribute(attributes[4]);
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supportsSNI = parseBooleanAttribute(attributes[5]);
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supportsALPN = parseBooleanAttribute(attributes[6]);
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}
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private List<String> parseListAttribute(String attribute) {
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attribute = parseAttribute(attribute);
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return Arrays.asList(attribute.split(","));
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}
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private boolean parseBooleanAttribute(String attribute) {
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attribute = parseAttribute(attribute);
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return Boolean.parseBoolean(attribute);
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}
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private String parseAttribute(String attribute) {
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return attribute.replaceAll(".*=", "");
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}
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// Determines the specific attributes for the specified JDK.
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private static String jdkAttributes(Path javaPath) {
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Map<String, String> props = new LinkedHashMap<>();
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props.put("java.security.properties", Utils.SEC_PROPS_FILE);
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return ProcUtils.java(javaPath, JdkInfoUtils.class, props).getOutput();
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}
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@Override
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public int hashCode() {
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return version == null ? 0 : version.hashCode();
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}
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@Override
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public boolean equals(Object obj) {
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if (this == obj) {
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return true;
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}
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if (obj == null) {
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return false;
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}
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if (getClass() != obj.getClass()) {
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return false;
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}
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JdkInfo other = (JdkInfo) obj;
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if (version == null) {
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if (other.version != null) {
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return false;
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}
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} else if (!version.equals(other.version)) {
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return false;
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}
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return true;
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}
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public boolean supportsProtocol(Protocol protocol) {
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return supportedProtocols.contains(protocol.name);
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}
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public boolean enablesProtocol(Protocol protocol) {
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return enabledProtocols.contains(protocol.name);
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}
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public boolean supportsCipherSuite(CipherSuite cipherSuite) {
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return supportedCipherSuites.contains(cipherSuite.name());
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}
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public boolean enablesCipherSuite(CipherSuite cipherSuite) {
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return enabledCipherSuites.contains(cipherSuite.name());
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}
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}
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