/*
|
* CDDL HEADER START
|
*
|
* The contents of this file are subject to the terms of the
|
* Common Development and Distribution License, Version 1.0 only
|
* (the "License"). You may not use this file except in compliance
|
* with the License.
|
*
|
* You can obtain a copy of the license at
|
* trunk/opends/resource/legal-notices/OpenDS.LICENSE
|
* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
|
* See the License for the specific language governing permissions
|
* and limitations under the License.
|
*
|
* When distributing Covered Code, include this CDDL HEADER in each
|
* file and include the License file at
|
* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
|
* add the following below this CDDL HEADER, with the fields enclosed
|
* by brackets "[]" replaced with your own identifying information:
|
* Portions Copyright [yyyy] [name of copyright owner]
|
*
|
* CDDL HEADER END
|
*
|
*
|
* Copyright 2009-2010 Sun Microsystems, Inc.
|
*/
|
|
package org.opends.server.util;
|
|
|
|
import java.security.KeyStoreException;
|
import java.security.KeyStore;
|
import java.security.PrivateKey;
|
import java.security.cert.Certificate;
|
import java.security.cert.CertificateFactory;
|
import java.security.cert.X509Certificate;
|
import java.util.List;
|
import java.io.FileInputStream;
|
import java.io.FileOutputStream;
|
import java.io.InputStream;
|
import java.lang.management.ManagementFactory;
|
import java.lang.management.MemoryPoolMXBean;
|
import java.lang.management.MemoryUsage;
|
import java.lang.reflect.Constructor;
|
import java.lang.reflect.Method;
|
import org.opends.messages.Message;
|
import static org.opends.messages.UtilityMessages.*;
|
|
|
|
/**
|
* Provides a wrapper class that collects all of the JVM vendor and JDK version
|
* specific code in a single place.
|
*/
|
public final class Platform
|
{
|
|
// Prefix that determines which security package to use.
|
private static String pkgPrefix;
|
|
// The two security package prefixes (IBM and SUN).
|
private static final String IBM_SEC = "com.ibm.security";
|
private static final String SUN_SEC = "sun.security";
|
|
private static final PlatformIMPL IMPL;
|
|
static
|
{
|
String vendor = System.getProperty("java.vendor");
|
|
if (vendor.startsWith("IBM"))
|
{
|
pkgPrefix = IBM_SEC;
|
}
|
else
|
{
|
pkgPrefix = SUN_SEC;
|
}
|
IMPL = new DefaultPlatformIMPL();
|
}
|
|
|
|
/**
|
* Platform base class. Performs all of the certificate management functions.
|
*/
|
private abstract static class PlatformIMPL
|
{
|
|
// Key size, key algorithm and signature algorithms used.
|
private static final int KEY_SIZE = 1024;
|
private static final String KEY_ALGORITHM = "rsa";
|
private static final String SIG_ALGORITHM = "SHA1WithRSA";
|
|
// Time values used in validity calculations.
|
private static final int SEC_IN_DAY = 24 * 60 * 60;
|
|
// Methods pulled from the classes.
|
private static final String GENERATE_METHOD = "generate";
|
private static final String GET_PRIVATE_KEY_METHOD = "getPrivateKey";
|
private static final String GET_SELFSIGNED_CERT_METHOD =
|
"getSelfCertificate";
|
|
// Classes needed to manage certificates.
|
private static Class<?> certKeyGenClass, X500NameClass;
|
|
// Constructors for each of the above classes.
|
private static Constructor<?> certKeyGenCons, X500NameCons;
|
|
static
|
{
|
String x509pkg = pkgPrefix + ".x509";
|
String certAndKeyGen = x509pkg + ".CertAndKeyGen";
|
String X500Name = x509pkg + ".X500Name";
|
try
|
{
|
certKeyGenClass = Class.forName(certAndKeyGen);
|
X500NameClass = Class.forName(X500Name);
|
certKeyGenCons = certKeyGenClass.getConstructor(String.class,
|
String.class);
|
X500NameCons = X500NameClass.getConstructor(String.class);
|
}
|
catch (ClassNotFoundException e)
|
{
|
Message msg = ERR_CERTMGR_CLASS_NOT_FOUND.get(e.getMessage());
|
throw new ExceptionInInitializerError(msg.toString());
|
}
|
catch (SecurityException e)
|
{
|
Message msg = ERR_CERTMGR_SECURITY.get(e.getMessage());
|
throw new ExceptionInInitializerError(msg.toString());
|
}
|
catch (NoSuchMethodException e)
|
{
|
Message msg = ERR_CERTMGR_NO_METHOD.get(e.getMessage());
|
throw new ExceptionInInitializerError(msg.toString());
|
}
|
}
|
|
|
|
protected PlatformIMPL()
|
{
|
}
|
|
|
|
/**
|
* Delete the specified alias from the specified keystore.
|
*
|
* @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.
|
* @throws KeyStoreException
|
* If an error occurred deleting the alias.
|
*/
|
public final void deleteAlias(KeyStore ks, String ksPath, String alias,
|
char[] pwd) throws KeyStoreException
|
{
|
try
|
{
|
if (ks == null)
|
{
|
Message msg = ERR_CERTMGR_KEYSTORE_NONEXISTANT.get();
|
throw new KeyStoreException(msg.toString());
|
}
|
ks.deleteEntry(alias);
|
FileOutputStream fs = new FileOutputStream(ksPath);
|
ks.store(fs, pwd);
|
fs.close();
|
}
|
catch (Exception e)
|
{
|
Message msg = ERR_CERTMGR_DELETE_ALIAS.get(alias, e.getMessage());
|
throw new KeyStoreException(msg.toString());
|
}
|
}
|
|
|
|
/**
|
* Add the certificate in the specified path to the specified keystore,
|
* creating the keystore using the specified type and path if it the
|
* keystore doesn't exist.
|
*
|
* @param ks
|
* The keystore to add the certificate to, may be null if it
|
* doesn't exist.
|
* @param ksType
|
* The type to use if the keystore is created.
|
* @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.
|
* @param certPath
|
* The path to the file containing the certificate.
|
* @throws KeyStoreException
|
* If an error occurred adding the certificate to the keystore.
|
*/
|
public final void addCertificate(KeyStore ks, String ksType, String ksPath,
|
String alias, char[] pwd, String certPath) throws KeyStoreException
|
{
|
try
|
{
|
CertificateFactory cf = CertificateFactory.getInstance("X509");
|
InputStream inStream = new FileInputStream(certPath);
|
if (ks == null)
|
{
|
ks = KeyStore.getInstance(ksType);
|
ks.load(null, pwd);
|
}
|
// Do not support certificate replies.
|
if (ks.entryInstanceOf(alias, KeyStore.PrivateKeyEntry.class))
|
{
|
Message msg = ERR_CERTMGR_CERT_REPLIES_INVALID.get(alias);
|
throw new KeyStoreException(msg.toString());
|
}
|
else if (!ks.containsAlias(alias)
|
|| ks
|
.entryInstanceOf(alias, KeyStore.TrustedCertificateEntry.class))
|
trustedCert(alias, cf, ks, inStream);
|
else
|
{
|
Message msg = ERR_CERTMGR_ALIAS_INVALID.get(alias);
|
throw new KeyStoreException(msg.toString());
|
}
|
FileOutputStream fileOutStream = new FileOutputStream(ksPath);
|
ks.store(fileOutStream, pwd);
|
fileOutStream.close();
|
inStream.close();
|
}
|
catch (Exception e)
|
{
|
Message msg = ERR_CERTMGR_ADD_CERT.get(alias, e.getMessage());
|
throw new KeyStoreException(msg.toString());
|
}
|
}
|
|
|
|
/**
|
* Generate a self-signed certificate using the specified alias, dn string
|
* and validity period. If the keystore does not exist, create it using the
|
* specified 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.
|
* @return The keystore that the self-signed certificate was stored in.
|
* @throws KeyStoreException
|
* If the self-signed certificate cannot be generated.
|
*/
|
public final KeyStore generateSelfSignedCertificate(KeyStore ks,
|
String ksType, String ksPath, String alias, char[] pwd, String dn,
|
int validity) throws KeyStoreException
|
{
|
try
|
{
|
if (ks == null)
|
{
|
ks = KeyStore.getInstance(ksType);
|
ks.load(null, pwd);
|
}
|
else if (ks.containsAlias(alias))
|
{
|
Message msg = ERR_CERTMGR_ALIAS_ALREADY_EXISTS.get(alias);
|
throw new KeyStoreException(msg.toString());
|
}
|
Object keypair = certKeyGenCons.newInstance(KEY_ALGORITHM,
|
SIG_ALGORITHM);
|
Object subject = X500NameCons.newInstance(dn);
|
Method certAndKeyGenGenerate = certKeyGenClass.getMethod(
|
GENERATE_METHOD, int.class);
|
certAndKeyGenGenerate.invoke(keypair, KEY_SIZE);
|
Method certAndKeyGetPrivateKey = certKeyGenClass
|
.getMethod(GET_PRIVATE_KEY_METHOD);
|
PrivateKey privatevKey = (PrivateKey) certAndKeyGetPrivateKey
|
.invoke(keypair);
|
Certificate[] certificateChain = new Certificate[1];
|
Method getSelfCertificate = certKeyGenClass.getMethod(
|
GET_SELFSIGNED_CERT_METHOD, X500NameClass, long.class);
|
int days = validity * SEC_IN_DAY;
|
certificateChain[0] = (Certificate) getSelfCertificate.invoke(keypair,
|
subject, days);
|
ks.setKeyEntry(alias, privatevKey, pwd, certificateChain);
|
FileOutputStream fileOutStream = new FileOutputStream(ksPath);
|
ks.store(fileOutStream, pwd);
|
fileOutStream.close();
|
}
|
catch (Exception e)
|
{
|
Message msg = ERR_CERTMGR_GEN_SELF_SIGNED_CERT.get(alias, e
|
.getMessage());
|
throw new KeyStoreException(msg.toString());
|
}
|
return ks;
|
}
|
|
|
|
/**
|
* Generate a x509 certificate from the input stream. Verification is done
|
* only if it is self-signed.
|
*
|
* @param alias
|
* The alias to save the certificate under.
|
* @param cf
|
* The x509 certificate factory.
|
* @param ks
|
* The keystore to add the certificate in.
|
* @param in
|
* The input stream to read the certificate from.
|
* @throws KeyStoreException
|
* If the alias exists already in the keystore, if the self-signed
|
* certificate didn't verify, or the certificate could not be
|
* stored.
|
*/
|
private void trustedCert(String alias, CertificateFactory cf, KeyStore ks,
|
InputStream in) throws KeyStoreException
|
{
|
try
|
{
|
if (ks.containsAlias(alias))
|
{
|
Message msg = ERR_CERTMGR_ALIAS_ALREADY_EXISTS.get(alias);
|
throw new KeyStoreException(msg.toString());
|
}
|
X509Certificate cert = (X509Certificate) cf.generateCertificate(in);
|
if (isSelfSigned(cert)) cert.verify(cert.getPublicKey());
|
ks.setCertificateEntry(alias, cert);
|
}
|
catch (Exception e)
|
{
|
Message msg = ERR_CERTMGR_TRUSTED_CERT.get(alias, e.getMessage());
|
throw new KeyStoreException(msg.toString());
|
}
|
}
|
|
|
|
/**
|
* Check that the issuer and subject DNs match.
|
*
|
* @param cert
|
* The certificate to examine.
|
* @return {@code true} if the certificate is self-signed.
|
*/
|
private boolean isSelfSigned(X509Certificate cert)
|
{
|
return cert.getSubjectDN().equals(cert.getIssuerDN());
|
}
|
|
|
|
/**
|
* Normalize the data in the specified buffer.
|
*
|
* @param buffer
|
* The buffer to normalize.
|
*/
|
public abstract void normalize(StringBuilder buffer);
|
|
|
|
/**
|
* Calculates the usable memory which could potentially be used by the
|
* application for caching objects.
|
*
|
* @return The usable memory which could potentially be used by the
|
* application for caching objects.
|
*/
|
public long getUsableMemoryForCaching()
|
{
|
long youngGenSize = 0;
|
long oldGenSize = 0;
|
|
List<MemoryPoolMXBean> mpools = ManagementFactory.getMemoryPoolMXBeans();
|
for (MemoryPoolMXBean mpool : mpools)
|
{
|
MemoryUsage usage = mpool.getUsage();
|
if (usage != null)
|
{
|
String name = mpool.getName();
|
if (name.equalsIgnoreCase("PS Eden Space"))
|
{
|
// Parallel.
|
youngGenSize = usage.getMax();
|
}
|
else if (name.equalsIgnoreCase("PS Old Gen"))
|
{
|
// Parallel.
|
oldGenSize = usage.getMax();
|
}
|
else if (name.equalsIgnoreCase("Par Eden Space"))
|
{
|
// CMS.
|
youngGenSize = usage.getMax();
|
}
|
else if (name.equalsIgnoreCase("CMS Old Gen"))
|
{
|
// CMS.
|
oldGenSize = usage.getMax();
|
}
|
}
|
}
|
|
if (youngGenSize > 0 && oldGenSize > youngGenSize)
|
{
|
// We can calculate available memory based on GC info.
|
return oldGenSize - youngGenSize;
|
}
|
else if (oldGenSize > 0)
|
{
|
// Small old gen. It is going to be difficult to avoid full GCs if the
|
// young gen is bigger.
|
return oldGenSize * 40 / 100;
|
}
|
else
|
{
|
// Unknown GC (G1, JRocket, etc).
|
Runtime runTime = Runtime.getRuntime();
|
runTime.gc();
|
runTime.gc();
|
return (runTime.freeMemory() + (runTime.maxMemory() - runTime
|
.totalMemory())) * 40 / 100;
|
}
|
}
|
}
|
|
|
|
// Prevent instantiation.
|
private Platform()
|
{
|
}
|
|
|
|
/**
|
* Add the certificate in the specified path to the provided keystore;
|
* creating the keystore with the provided type and path if it doesn't exist.
|
*
|
* @param ks
|
* The keystore to add the certificate to, may be null if it doesn't
|
* exist.
|
* @param ksType
|
* The type to use if the keystore is created.
|
* @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.
|
* @param certPath
|
* The path to the file containing the certificate.
|
* @throws KeyStoreException
|
* If an error occurred adding the certificate to the keystore.
|
*/
|
public static void addCertificate(KeyStore ks, String ksType, String ksPath,
|
String alias, char[] pwd, String certPath) throws KeyStoreException
|
{
|
IMPL.addCertificate(ks, ksType, ksPath, alias, pwd, certPath);
|
}
|
|
|
|
/**
|
* Delete the specified alias from the provided keystore.
|
*
|
* @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.
|
* @throws KeyStoreException
|
* If an error occurred deleting the alias.
|
*/
|
public static void deleteAlias(KeyStore ks, String ksPath, String alias,
|
char[] pwd) throws KeyStoreException
|
{
|
IMPL.deleteAlias(ks, ksPath, alias, pwd);
|
}
|
|
|
|
/**
|
* 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);
|
}
|
|
/**
|
* 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;
|
}
|
|
|
|
@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.
|
}
|
}
|
}
|
|
/**
|
* 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);
|
}
|
|
|
|
/**
|
* Calculates the usable memory which could potentially be used by the
|
* application for caching objects. This method <b>does not</b> look at the
|
* amount of free memory, but instead tries to query the JVM's GC settings in
|
* order to determine the amount of usable memory in the old generation (or
|
* equivalent). More specifically, applications may also need to take into
|
* account the amount of memory already in use, for example by performing the
|
* following:
|
*
|
* <pre>
|
* Runtime runTime = Runtime.getRuntime();
|
* runTime.gc();
|
* runTime.gc();
|
* long freeCommittedMemory = runTime.freeMemory();
|
* long uncommittedMemory = runTime.maxMemory() - runTime.totalMemory();
|
* long freeMemory = freeCommittedMemory + uncommittedMemory;
|
* </pre>
|
*
|
* @return The usable memory which could potentially be used by the
|
* application for caching objects.
|
*/
|
public static long getUsableMemoryForCaching()
|
{
|
return IMPL.getUsableMemoryForCaching();
|
}
|
}
|
