/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE
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* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
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* add the following below this CDDL HEADER, with the fields enclosed
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* by brackets "[]" replaced with your own identifying information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Copyright 2009 Sun Microsystems, Inc.
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*/
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package org.opends.server.util;
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import java.security.KeyStoreException;
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import java.security.KeyStore;
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import java.security.PrivateKey;
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import java.security.PublicKey;
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import java.security.Signature;
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import java.security.cert.Certificate;
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import java.security.cert.CertificateFactory;
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import java.security.cert.X509Certificate;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.io.InputStream;
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import java.io.PrintStream;
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import java.lang.reflect.Constructor;
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import java.lang.reflect.Method;
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import org.opends.messages.Message;
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import static org.opends.messages.UtilityMessages.*;
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/**
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* Provides a wrapper class that collects all of the JVM vendor
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* and JDK version specific code in a single place.
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*
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*/
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public final class Platform {
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//Prefix that determines which security package to use.
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private static String pkgPrefix;
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//IBM security package doesn't appear to support PCKS10, this flags turns
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//off support for that.
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private static boolean certReqAllowed;
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//The two security package prefixes (IBM and SUN).
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private static final String IBM_SEC = "com.ibm.security";
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private static final String SUN_SEC = "sun.security";
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private static final PlatformIMPL IMPL;
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static {
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String vendor = System.getProperty("java.vendor");
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String ver = System.getProperty("java.version");
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if(vendor.startsWith("IBM"))
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{
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pkgPrefix = IBM_SEC;
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certReqAllowed = false;
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if(ver.startsWith("1.5"))
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{
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IMPL = new IBM5PlatformIMPL();
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}
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else
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{
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IMPL = new DefaultPlatformIMPL();
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}
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}
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else
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{
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pkgPrefix = SUN_SEC;
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certReqAllowed = true;
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if(ver.startsWith("1.5"))
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{
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IMPL = new Sun5PlatformIMPL();
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}
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else
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{
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IMPL = new DefaultPlatformIMPL();
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}
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}
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}
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/**
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* Platform base class. Performs all of the certificate management functions.
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*/
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private abstract static class PlatformIMPL {
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//Key size, key algorithm and signature algorithms used.
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private static final int KEY_SIZE = 1024;
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private static final String KEY_ALGORITHM = "rsa";
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private static final String SIG_ALGORITHM = "SHA1WithRSA";
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//Time values used in validity calculations.
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private static final int SEC_IN_DAY = 24 * 60 * 60;
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private static final int DEFAULT_VALIDITY = 90 * SEC_IN_DAY;
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//These two are used to build certificate request files.
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private static final String TMPFILE_PREFIX = "CertificateManager-";
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private static final String TMPFILE_EXT = ".csr";
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//Methods pulled from the classes.
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private static final String ENCODE_SIGN_METHOD = "encodeAndSign";
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private static final String GENERATE_METHOD = "generate";
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private static final String GET_PRIVATE_KEY_METHOD = "getPrivateKey";
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private static final String GET_SELFSIGNED_CERT_METHOD =
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"getSelfCertificate";
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private static final String PRINT_METHOD = "print";
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//Classes needed to manage certificates.
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private static Class<?> certKeyGenClass, X500NameClass,
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X500SignerClass, PKCS10Class;
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//Constructors for each of the above classes.
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private static Constructor<?> certKeyGenCons, X500NameCons,
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X500SignerCons, pkcs10Cons;
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static {
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String x509pkg = pkgPrefix + ".x509";
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String pkcs10Pkg = pkgPrefix + ".pkcs";
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String certAndKeyGen= x509pkg + ".CertAndKeyGen";
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String X500Name = x509pkg + ".X500Name";
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String X500Signer = x509pkg + ".X500Signer";
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try {
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certKeyGenClass = Class.forName(certAndKeyGen);
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X500NameClass = Class.forName(X500Name);
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X500SignerClass = Class.forName(X500Signer);
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if(certReqAllowed) {
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String pkcs10 = pkcs10Pkg + ".PKCS10";
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PKCS10Class = Class.forName(pkcs10);
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pkcs10Cons = PKCS10Class.getConstructor(PublicKey.class);
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}
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certKeyGenCons =
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certKeyGenClass.getConstructor(String.class, String.class);
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X500NameCons = X500NameClass.getConstructor(String.class);
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X500SignerCons =
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X500SignerClass.getConstructor(Signature.class, X500NameClass);
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} catch (ClassNotFoundException e) {
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Message msg = ERR_CERTMGR_CLASS_NOT_FOUND.get(e.getMessage());
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throw new ExceptionInInitializerError(msg.toString());
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} catch (SecurityException e) {
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Message msg = ERR_CERTMGR_SECURITY.get(e.getMessage());
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throw new ExceptionInInitializerError(msg.toString());
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} catch (NoSuchMethodException e) {
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Message msg = ERR_CERTMGR_NO_METHOD.get(e.getMessage());
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throw new ExceptionInInitializerError(msg.toString());
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}
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}
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protected PlatformIMPL() {}
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/**
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* Generate a certificate request. Note that this methods checks if
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* the certificate request generation is allowed and throws an
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* exception if it isn't supported. Some vendors JDKs aren't compatible
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* with Sun's certificate request generation classes so they aren't
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* supported.
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*
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* @param ks The keystore to use in the request creation.
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* @param ksType The keystore type.
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* @param ksPath The path to the keystore.
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* @param alias The alias to use in the request generation.
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* @param pwd The keystore password to use.
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* @param dn A dn string to use as the certificate subject.
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*
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* @return A file object pointing at the created certificate request.
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* @throws KeyStoreException If the certificate request failed.
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*/
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public final File
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generateCertificateRequest(KeyStore ks, String ksType, String ksPath,
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String alias, char[] pwd, String dn) throws KeyStoreException {
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if(!certReqAllowed) {
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String vendor = System.getProperty("java.vendor");
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Message msg =
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ERR_CERTMGR_CERT_SIGN_REQ_NOT_SUPPORTED.get(vendor);
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throw new KeyStoreException(msg.toString());
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}
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KeyStore keyStore = generateSelfSignedCertificate(ks, ksType, ksPath,
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alias, pwd, dn, DEFAULT_VALIDITY);
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File csrFile;
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try {
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csrFile = File.createTempFile(TMPFILE_PREFIX, TMPFILE_EXT);
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csrFile.deleteOnExit();
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PrintStream printStream =
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new PrintStream(new FileOutputStream(csrFile.getAbsolutePath()));
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if(keyStore == null) {
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Message msg = ERR_CERTMGR_KEYSTORE_NONEXISTANT.get();
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throw new KeyStoreException(msg.toString());
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}
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PrivateKey privateKey = getPrivateKey(keyStore, alias, pwd);
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if(privateKey == null) {
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Message msg = ERR_CERTMGR_PRIVATE_KEY.get(alias);
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throw new KeyStoreException(msg.toString());
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}
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Certificate cert = keyStore.getCertificate(alias);
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if(cert == null) {
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Message msg = ERR_CERTMGR_ALIAS_NO_CERTIFICATE.get(alias);
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throw new KeyStoreException(msg.toString());
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}
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Signature signature = Signature.getInstance(SIG_ALGORITHM);
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signature.initSign(privateKey);
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Object request = pkcs10Cons.newInstance(cert.getPublicKey());
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Object subject = X500NameCons.newInstance(dn);
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Object signer =
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X500SignerCons.newInstance(signature, subject);
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Method encodeAndSign =
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PKCS10Class.getMethod(ENCODE_SIGN_METHOD, X500SignerClass);
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Method print =
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PKCS10Class.getMethod(PRINT_METHOD, PrintStream.class);
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encodeAndSign.invoke(request, signer);
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print.invoke(request, printStream);
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printStream.close();
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} catch (Exception e) {
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Message msg = ERR_CERTMGR_CERT_REQUEST.get(alias,e.getMessage());
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throw new KeyStoreException(msg.toString());
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}
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return csrFile;
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}
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/**
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* Delete the specified alias from the specified keystore.
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*
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* @param ks The keystore to delete the alias from.
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* @param ksPath The path to the keystore.
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* @param alias The alias to use in the request generation.
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* @param pwd The keystore password to use.
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*
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* @throws KeyStoreException If an error occurred deleting the alias.
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*/
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public final void deleteAlias(KeyStore ks, String ksPath,
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String alias, char[] pwd) throws KeyStoreException {
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try {
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if(ks == null) {
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Message msg = ERR_CERTMGR_KEYSTORE_NONEXISTANT.get();
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throw new KeyStoreException(msg.toString());
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}
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ks.deleteEntry(alias);
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FileOutputStream fs = new FileOutputStream(ksPath);
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ks.store(fs, pwd);
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fs.close();
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} catch (Exception e) {
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Message msg =
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ERR_CERTMGR_DELETE_ALIAS.get(alias,e.getMessage());
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throw new KeyStoreException(msg.toString());
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}
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}
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/**
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* Add the certificate in the specified path to the specified keystore,
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* creating the keystore using the specified type and path if it the
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* keystore doesn't exist.
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*
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* @param ks The keystore to add the certificate to, may be null if it
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* doesn't exist.
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* @param ksType The type to use if the keystore is created.
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* @param ksPath The path to the keystore if it is created.
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* @param alias The alias to store the certificate under.
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* @param pwd The password to use in saving the certificate.
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* @param certPath The path to the file containing the certificate.
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* @throws KeyStoreException If an error occurred adding the
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* certificate to the keystore.
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*/
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public final void addCertificate(KeyStore ks, String ksType,
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String ksPath, String alias, char[] pwd, String certPath)
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throws KeyStoreException {
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try {
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CertificateFactory cf = CertificateFactory.getInstance("X509");
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InputStream inStream = new FileInputStream(certPath);
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if(ks == null) {
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ks = KeyStore.getInstance(ksType);
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ks.load(null, pwd);
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}
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//Do not support certificate replies.
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if (ks.entryInstanceOf(alias ,KeyStore.PrivateKeyEntry.class)) {
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Message msg = ERR_CERTMGR_CERT_REPLIES_INVALID.get(alias);
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throw new KeyStoreException(msg.toString());
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} else if(!ks.containsAlias(alias) ||
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ks.entryInstanceOf(alias,
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KeyStore.TrustedCertificateEntry.class))
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trustedCert(alias, cf, ks, inStream);
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else {
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Message msg = ERR_CERTMGR_ALIAS_INVALID.get(alias);
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throw new KeyStoreException(msg.toString());
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}
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FileOutputStream fileOutStream = new FileOutputStream(ksPath);
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ks.store(fileOutStream, pwd);
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fileOutStream.close();
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inStream.close();
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} catch (Exception e) {
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Message msg =
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ERR_CERTMGR_ADD_CERT.get(alias, e.getMessage());
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throw new KeyStoreException(msg.toString());
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}
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}
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/**
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* Generate a self-signed certificate using the specified alias, dn
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* string and validity period. If the keystore does not exist, create it
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* using the specified type and path.
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*
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* @param ks The keystore to save the certificate in. May be null if it
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* does not exist.
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* @param ksType The keystore type to use if the keystore is created.
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* @param ksPath The path to the keystore if the keystore is created.
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* @param alias The alias to store the certificate under.
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* @param pwd The password to us in saving the certificate.
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* @param dn The dn string used as the certificate subject.
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* @param validity The validity of the certificate in days.
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* @return The keystore that the self-signed certificate was stored in.
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*
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* @throws KeyStoreException If the self-signed certificate cannot be
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* generated.
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*/
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public final
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KeyStore generateSelfSignedCertificate(KeyStore ks, String ksType,
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String ksPath, String alias, char[] pwd, String dn, int validity)
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throws KeyStoreException {
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try {
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if(ks == null) {
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ks = KeyStore.getInstance(ksType);
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ks.load(null, pwd);
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} else if(ks.containsAlias(alias)) {
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Message msg = ERR_CERTMGR_ALIAS_ALREADY_EXISTS.get(alias);
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throw new KeyStoreException(msg.toString());
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}
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Object keypair =
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certKeyGenCons.newInstance(KEY_ALGORITHM, SIG_ALGORITHM);
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Object subject = X500NameCons.newInstance(dn);
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Method certAndKeyGenGenerate =
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certKeyGenClass.getMethod(GENERATE_METHOD, int.class);
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certAndKeyGenGenerate.invoke(keypair, KEY_SIZE);
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Method certAndKeyGetPrivateKey =
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certKeyGenClass.getMethod(GET_PRIVATE_KEY_METHOD);
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PrivateKey privatevKey =
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(PrivateKey) certAndKeyGetPrivateKey.invoke(keypair);
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Certificate[] certificateChain = new Certificate[1];
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Method getSelfCertificate =
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certKeyGenClass.getMethod(GET_SELFSIGNED_CERT_METHOD,
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X500NameClass,long.class);
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int days = validity * SEC_IN_DAY;
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certificateChain[0] =
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(Certificate) getSelfCertificate.invoke(keypair, subject, days);
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ks.setKeyEntry(alias, privatevKey, pwd, certificateChain);
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FileOutputStream fileOutStream = new FileOutputStream(ksPath);
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ks.store(fileOutStream, pwd);
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fileOutStream.close();
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} catch (Exception e) {
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Message msg =
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ERR_CERTMGR_GEN_SELF_SIGNED_CERT.get(alias, e.getMessage());
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throw new KeyStoreException(msg.toString());
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}
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return ks;
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}
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/**
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* Generate a x509 certificate from the input stream. Verification is
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* done only if it is self-signed.
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*
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* @param alias The alias to save the certificate under.
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* @param cf The x509 certificate factory.
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* @param ks The keystore to add the certificate in.
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* @param in The input stream to read the certificate from.
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* @throws KeyStoreException If the alias exists already in the
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* keystore, if the self-signed certificate didn't verify, or
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* the certificate could not be stored.
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*/
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private void trustedCert(String alias, CertificateFactory cf,
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KeyStore ks, InputStream in) throws KeyStoreException {
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try {
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if (ks.containsAlias(alias) == true) {
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Message msg = ERR_CERTMGR_ALIAS_ALREADY_EXISTS.get(alias);
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throw new KeyStoreException(msg.toString());
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}
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X509Certificate cert = (X509Certificate) cf.generateCertificate(in);
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if (isSelfSigned(cert))
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cert.verify(cert.getPublicKey());
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ks.setCertificateEntry(alias, cert);
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} catch (Exception e) {
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Message msg =
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ERR_CERTMGR_TRUSTED_CERT.get(alias,e.getMessage());
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throw new KeyStoreException(msg.toString());
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}
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}
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/**
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* Check that the issuer and subject DNs match.
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*
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* @param cert The certificate to examine.
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* @return {@code true} if the certificate is self-signed.
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*/
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private boolean isSelfSigned(X509Certificate cert) {
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return cert.getSubjectDN().equals(cert.getIssuerDN());
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}
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/**
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* Returns the private key associated with specified alias and keystore.
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* The keystore was already checked for existance.
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*
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* @param ks The keystore to get the private key from, it must exist.
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* @param alias The alias to get the private key of.
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* @param pwd The password used to get the key from the keystore.
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* @return The private key of related to the alias.
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*
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* @throws KeyStoreException If the alias is not in the keystore, the
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* entry related to the alias is not of
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*/
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private PrivateKey getPrivateKey(KeyStore ks, String alias, char[] pwd)
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throws KeyStoreException {
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PrivateKey key = null;
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try {
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if(!ks.containsAlias(alias)) {
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Message msg = ERR_CERTMGR_ALIAS_DOES_NOT_EXIST.get(alias);
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throw new KeyStoreException(msg.toString());
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}
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if(!ks.entryInstanceOf(alias, KeyStore.PrivateKeyEntry.class) &&
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!ks.entryInstanceOf(alias, KeyStore.SecretKeyEntry.class)) {
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Message msg =
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ERR_CERTMGR_ALIAS_INVALID_ENTRY_TYPE.get(alias);
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throw new KeyStoreException(msg.toString());
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}
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key = (PrivateKey)ks.getKey(alias, pwd);
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} catch (Exception e) {
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Message msg =
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ERR_CERTMGR_GET_KEY.get(alias,e.getMessage());
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throw new KeyStoreException(msg.toString());
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}
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return key;
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}
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/**
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* Normalize the data in the specified buffer.
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*
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* @param buffer The buffer to normalize.
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*/
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public abstract void normalize(StringBuilder buffer);
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}
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//Prevent instantiation.
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private Platform() {}
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/**
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* Add the certificate in the specified path to the provided keystore;
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* creating the keystore with the provided type and path if it doesn't
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* exist.
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*
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* @param ks The keystore to add the certificate to, may be null if it
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* doesn't exist.
|
* @param ksType The type to use if the keystore is created.
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* @param ksPath The path to the keystore if it is created.
|
* @param alias The alias to store the certificate under.
|
* @param pwd The password to use in saving the certificate.
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* @param certPath The path to the file containing the certificate.
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*
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* @throws KeyStoreException If an error occurred adding the
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* certificate to the keystore.
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*/
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public static void addCertificate(KeyStore ks, String ksType, String ksPath,
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String alias, char[] pwd, String certPath) throws KeyStoreException {
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IMPL.addCertificate(ks,ksType, ksPath, alias, pwd, certPath);
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}
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|
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/**
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* Delete the specified alias from the provided keystore.
|
*
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* @param ks The keystore to delete the alias from.
|
* @param ksPath The path to the keystore.
|
* @param alias The alias to use in the request generation.
|
* @param pwd The keystore password to use.
|
*
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* @throws KeyStoreException If an error occurred deleting the alias.
|
*/
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public static void deleteAlias(KeyStore ks, String ksPath, String alias,
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char[] pwd) throws KeyStoreException {
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IMPL.deleteAlias(ks, ksPath, alias, pwd);
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}
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|
|
/**
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* Generate a certificate request using the specified parameters.
|
*
|
* @param ks The keystore to use in the request creation.
|
* @param ksType The keystore type.
|
* @param ksPath The path to the keystore.
|
* @param alias The alias to use in the request generation.
|
* @param pwd The keystore password to use.
|
* @param dn A dn string to use as the certificate subject.
|
* @return A file object pointing at the created certificate request.
|
*
|
* @throws KeyStoreException If the certificate request failed.
|
*/
|
public static File generateCertificateRequest(KeyStore ks, String ksType,
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String ksPath, String alias, char[] pwd, String dn)
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throws KeyStoreException {
|
return IMPL.generateCertificateRequest(ks, ksType, ksPath, alias,
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pwd, dn);
|
}
|
|
|
/**
|
* Generate a self-signed certificate using the specified alias, dn
|
* string and validity period. If the keystore does not exist, it will be
|
* created using the specified keystore type and path.
|
*
|
* @param ks The keystore to save the certificate in. May be null if it
|
* does not exist.
|
* @param ksType The keystore type to use if the keystore is created.
|
* @param ksPath The path to the keystore if the keystore is created.
|
* @param alias The alias to store the certificate under.
|
* @param pwd The password to us in saving the certificate.
|
* @param dn The dn string used as the certificate subject.
|
* @param validity The validity of the certificate in days.
|
*
|
* @throws KeyStoreException If the self-signed certificate cannot be
|
* generated.
|
*/
|
public static void generateSelfSignedCertificate(KeyStore ks, String ksType,
|
String ksPath, String alias, char[] pwd, String dn, int validity)
|
throws KeyStoreException {
|
IMPL.generateSelfSignedCertificate(ks, ksType, ksPath, alias, pwd, dn,
|
validity);
|
}
|
|
|
|
/**
|
* Sun 5 JDK platform class.
|
*/
|
private static class Sun5PlatformIMPL extends PlatformIMPL
|
{
|
//normalize method.
|
private static final Method NORMALIZE;
|
//Normalized form method.
|
private static final Object FORM_NFKC;
|
|
static
|
{
|
Method normalize = null;
|
Object formNFKC = null;
|
try
|
{
|
Class<?> normalizer = Class.forName("sun.text.Normalizer");
|
formNFKC = normalizer.getField("DECOMP_COMPAT").get(null);
|
Class<?> normalizerForm = Class.forName("sun.text.Normalizer$Mode");
|
normalize = normalizer.getMethod("normalize", String.class,
|
normalizerForm, Integer.TYPE);
|
}
|
catch (Exception ex)
|
{
|
// Do not use Normalizer. The values are already set to null.
|
}
|
NORMALIZE = normalize;
|
FORM_NFKC = formNFKC;
|
}
|
|
private Sun5PlatformIMPL()
|
{
|
super();
|
}
|
|
@Override
|
public void normalize(StringBuilder buffer)
|
{
|
try
|
{
|
String normal =
|
(String) NORMALIZE.invoke(null, buffer.toString(), FORM_NFKC,0);
|
buffer.replace(0,buffer.length(),normal);
|
}
|
catch(Exception ex)
|
{
|
//Don't do anything. buffer should be used.
|
}
|
}
|
}
|
|
/**
|
* Default platform class.
|
*/
|
private static class DefaultPlatformIMPL extends PlatformIMPL
|
{
|
//normalize method.
|
private static final Method NORMALIZE;
|
//Normalized form method.
|
private static final Object FORM_NFKC;
|
|
static
|
{
|
Method normalize = null;
|
Object formNFKC = null;
|
try
|
{
|
Class<?> normalizer = Class.forName("java.text.Normalizer");
|
Class<?> normalizerForm = Class.forName("java.text.Normalizer$Form");
|
normalize = normalizer.getMethod("normalize", CharSequence.class,
|
normalizerForm);
|
formNFKC = normalizerForm.getField("NFKD").get(null);
|
}
|
catch (Exception ex)
|
{
|
// Do not use Normalizer. The values are already set to null.
|
}
|
NORMALIZE = normalize;
|
FORM_NFKC = formNFKC;
|
}
|
|
private DefaultPlatformIMPL()
|
{
|
super();
|
}
|
|
@Override
|
public void normalize(StringBuilder buffer)
|
{
|
try
|
{
|
String normal = (String) NORMALIZE.invoke(null, buffer, FORM_NFKC);
|
buffer.replace(0,buffer.length(),normal);
|
}
|
catch(Exception ex)
|
{
|
//Don't do anything. buffer should be used.
|
}
|
}
|
}
|
|
/**
|
* IBM JDK 5 platform class.
|
*/
|
private static class IBM5PlatformIMPL extends PlatformIMPL
|
{
|
private IBM5PlatformIMPL()
|
{
|
super();
|
}
|
@Override
|
public void normalize(StringBuilder buffer)
|
{
|
//No implementation.
|
}
|
}
|
|
/**
|
* Normalize the specified buffer.
|
*
|
* @param buffer The buffer to normalize.
|
*/
|
public static void normalize(StringBuilder buffer)
|
{
|
IMPL.normalize(buffer);
|
}
|
|
/**
|
* Test if a platform java vendor property starts with the specified
|
* vendor string.
|
*
|
* @param vendor The vendor to check for.
|
* @return {@code true} if the java vendor starts with the specified vendor
|
* string.
|
*/
|
public static boolean isVendor(String vendor) {
|
String javaVendor = System.getProperty("java.vendor");
|
return javaVendor.startsWith(vendor);
|
}
|
}
|
