Java example source code file (SSLSecurity.java)
The SSLSecurity.java Java example source code
/*
* Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* NOTE: this file was copied from javax.net.ssl.SSLSecurity,
* but was heavily modified to allow com.sun.* users to
* access providers written using the javax.sun.* APIs.
*/
package com.sun.net.ssl;
import java.util.*;
import java.io.*;
import java.security.*;
import java.security.Provider.Service;
import java.net.Socket;
import sun.security.jca.*;
/**
* This class instantiates implementations of JSSE engine classes from
* providers registered with the java.security.Security object.
*
* @author Jan Luehe
* @author Jeff Nisewanger
* @author Brad Wetmore
*/
final class SSLSecurity {
/*
* Don't let anyone instantiate this.
*/
private SSLSecurity() {
}
// ProviderList.getService() is not accessible now, implement our own loop
private static Service getService(String type, String alg) {
ProviderList list = Providers.getProviderList();
for (Provider p : list.providers()) {
Service s = p.getService(type, alg);
if (s != null) {
return s;
}
}
return null;
}
/**
* The body of the driver for the getImpl method.
*/
private static Object[] getImpl1(String algName, String engineType,
Service service) throws NoSuchAlgorithmException
{
Provider provider = service.getProvider();
String className = service.getClassName();
Class<?> implClass;
try {
ClassLoader cl = provider.getClass().getClassLoader();
if (cl == null) {
// system class
implClass = Class.forName(className);
} else {
implClass = cl.loadClass(className);
}
} catch (ClassNotFoundException e) {
throw new NoSuchAlgorithmException("Class " + className +
" configured for " +
engineType +
" not found: " +
e.getMessage());
} catch (SecurityException e) {
throw new NoSuchAlgorithmException("Class " + className +
" configured for " +
engineType +
" cannot be accessed: " +
e.getMessage());
}
/*
* JSSE 1.0, 1.0.1, and 1.0.2 used the com.sun.net.ssl API as the
* API was being developed. As JSSE was folded into the main
* release, it was decided to promote the com.sun.net.ssl API to
* be javax.net.ssl. It is desired to keep binary compatibility
* with vendors of JSSE implementation written using the
* com.sun.net.sll API, so we do this magic to handle everything.
*
* API used Implementation used Supported?
* ======== =================== ==========
* com.sun javax Yes
* com.sun com.sun Yes
* javax javax Yes
* javax com.sun Not Currently
*
* Make sure the implementation class is a subclass of the
* corresponding engine class.
*
* In wrapping these classes, there's no way to know how to
* wrap all possible classes that extend the TrustManager/KeyManager.
* We only wrap the x509 variants.
*/
try { // catch instantiation errors
/*
* (The following Class.forName()s should alway work, because
* this class and all the SPI classes in javax.crypto are
* loaded by the same class loader.) That is, unless they
* give us a SPI class that doesn't exist, say SSLFoo,
* or someone has removed classes from the jsse.jar file.
*/
Class<?> typeClassJavax;
Class<?> typeClassCom;
Object obj = null;
/*
* Odds are more likely that we have a javax variant, try this
* first.
*/
if (((typeClassJavax = Class.forName("javax.net.ssl." +
engineType + "Spi")) != null) &&
(checkSuperclass(implClass, typeClassJavax))) {
if (engineType.equals("SSLContext")) {
obj = new SSLContextSpiWrapper(algName, provider);
} else if (engineType.equals("TrustManagerFactory")) {
obj = new TrustManagerFactorySpiWrapper(algName, provider);
} else if (engineType.equals("KeyManagerFactory")) {
obj = new KeyManagerFactorySpiWrapper(algName, provider);
} else {
/*
* We should throw an error if we get
* something totally unexpected. Don't ever
* expect to see this one...
*/
throw new IllegalStateException(
"Class " + implClass.getName() +
" unknown engineType wrapper:" + engineType);
}
} else if (((typeClassCom = Class.forName("com.sun.net.ssl." +
engineType + "Spi")) != null) &&
(checkSuperclass(implClass, typeClassCom))) {
obj = service.newInstance(null);
}
if (obj != null) {
return new Object[] { obj, provider };
} else {
throw new NoSuchAlgorithmException(
"Couldn't locate correct object or wrapper: " +
engineType + " " + algName);
}
} catch (ClassNotFoundException e) {
IllegalStateException exc = new IllegalStateException(
"Engine Class Not Found for " + engineType);
exc.initCause(e);
throw exc;
}
}
/**
* Returns an array of objects: the first object in the array is
* an instance of an implementation of the requested algorithm
* and type, and the second object in the array identifies the provider
* of that implementation.
* The <code>provName argument can be null, in which case all
* configured providers will be searched in order of preference.
*/
static Object[] getImpl(String algName, String engineType, String provName)
throws NoSuchAlgorithmException, NoSuchProviderException
{
Service service;
if (provName != null) {
ProviderList list = Providers.getProviderList();
Provider prov = list.getProvider(provName);
if (prov == null) {
throw new NoSuchProviderException("No such provider: " +
provName);
}
service = prov.getService(engineType, algName);
} else {
service = getService(engineType, algName);
}
if (service == null) {
throw new NoSuchAlgorithmException("Algorithm " + algName
+ " not available");
}
return getImpl1(algName, engineType, service);
}
/**
* Returns an array of objects: the first object in the array is
* an instance of an implementation of the requested algorithm
* and type, and the second object in the array identifies the provider
* of that implementation.
* The <code>prov argument can be null, in which case all
* configured providers will be searched in order of preference.
*/
static Object[] getImpl(String algName, String engineType, Provider prov)
throws NoSuchAlgorithmException
{
Service service = prov.getService(engineType, algName);
if (service == null) {
throw new NoSuchAlgorithmException("No such algorithm: " +
algName);
}
return getImpl1(algName, engineType, service);
}
/*
* Checks whether one class is the superclass of another
*/
private static boolean checkSuperclass(Class<?> subclass, Class superclass) {
if ((subclass == null) || (superclass == null))
return false;
while (!subclass.equals(superclass)) {
subclass = subclass.getSuperclass();
if (subclass == null) {
return false;
}
}
return true;
}
/*
* Return at most the first "resize" elements of an array.
*
* Didn't want to use java.util.Arrays, as PJava may not have it.
*/
static Object[] truncateArray(Object[] oldArray, Object[] newArray) {
for (int i = 0; i < newArray.length; i++) {
newArray[i] = oldArray[i];
}
return newArray;
}
}
/*
* =================================================================
* The remainder of this file is for the wrapper and wrapper-support
* classes. When SSLSecurity finds something which extends the
* javax.net.ssl.*Spi, we need to go grab a real instance of the
* thing that the Spi supports, and wrap into a com.sun.net.ssl.*Spi
* object. This also mean that anything going down into the SPI
* needs to be wrapped, as well as anything coming back up.
*/
final class SSLContextSpiWrapper extends SSLContextSpi {
private javax.net.ssl.SSLContext theSSLContext;
SSLContextSpiWrapper(String algName, Provider prov) throws
NoSuchAlgorithmException {
theSSLContext = javax.net.ssl.SSLContext.getInstance(algName, prov);
}
protected void engineInit(KeyManager[] kma, TrustManager[] tma,
SecureRandom sr) throws KeyManagementException {
// Keep track of the actual number of array elements copied
int dst;
int src;
javax.net.ssl.KeyManager[] kmaw;
javax.net.ssl.TrustManager[] tmaw;
// Convert com.sun.net.ssl.kma to a javax.net.ssl.kma
// wrapper if need be.
if (kma != null) {
kmaw = new javax.net.ssl.KeyManager[kma.length];
for (src = 0, dst = 0; src < kma.length; ) {
/*
* These key managers may implement both javax
* and com.sun interfaces, so if they do
* javax, there's no need to wrap them.
*/
if (!(kma[src] instanceof javax.net.ssl.KeyManager)) {
/*
* Do we know how to convert them? If not, oh well...
* We'll have to drop them on the floor in this
* case, cause we don't know how to handle them.
* This will be pretty rare, but put here for
* completeness.
*/
if (kma[src] instanceof X509KeyManager) {
kmaw[dst] = (javax.net.ssl.KeyManager)
new X509KeyManagerJavaxWrapper(
(X509KeyManager)kma[src]);
dst++;
}
} else {
// We can convert directly, since they implement.
kmaw[dst] = (javax.net.ssl.KeyManager)kma[src];
dst++;
}
src++;
}
/*
* If dst != src, there were more items in the original array
* than in the new array. Compress the new elements to avoid
* any problems down the road.
*/
if (dst != src) {
kmaw = (javax.net.ssl.KeyManager [])
SSLSecurity.truncateArray(kmaw,
new javax.net.ssl.KeyManager [dst]);
}
} else {
kmaw = null;
}
// Now do the same thing with the TrustManagers.
if (tma != null) {
tmaw = new javax.net.ssl.TrustManager[tma.length];
for (src = 0, dst = 0; src < tma.length; ) {
/*
* These key managers may implement both...see above...
*/
if (!(tma[src] instanceof javax.net.ssl.TrustManager)) {
// Do we know how to convert them?
if (tma[src] instanceof X509TrustManager) {
tmaw[dst] = (javax.net.ssl.TrustManager)
new X509TrustManagerJavaxWrapper(
(X509TrustManager)tma[src]);
dst++;
}
} else {
tmaw[dst] = (javax.net.ssl.TrustManager)tma[src];
dst++;
}
src++;
}
if (dst != src) {
tmaw = (javax.net.ssl.TrustManager [])
SSLSecurity.truncateArray(tmaw,
new javax.net.ssl.TrustManager [dst]);
}
} else {
tmaw = null;
}
theSSLContext.init(kmaw, tmaw, sr);
}
protected javax.net.ssl.SSLSocketFactory
engineGetSocketFactory() {
return theSSLContext.getSocketFactory();
}
protected javax.net.ssl.SSLServerSocketFactory
engineGetServerSocketFactory() {
return theSSLContext.getServerSocketFactory();
}
}
final class TrustManagerFactorySpiWrapper extends TrustManagerFactorySpi {
private javax.net.ssl.TrustManagerFactory theTrustManagerFactory;
TrustManagerFactorySpiWrapper(String algName, Provider prov) throws
NoSuchAlgorithmException {
theTrustManagerFactory =
javax.net.ssl.TrustManagerFactory.getInstance(algName, prov);
}
protected void engineInit(KeyStore ks) throws KeyStoreException {
theTrustManagerFactory.init(ks);
}
protected TrustManager[] engineGetTrustManagers() {
int dst;
int src;
javax.net.ssl.TrustManager[] tma =
theTrustManagerFactory.getTrustManagers();
TrustManager[] tmaw = new TrustManager[tma.length];
for (src = 0, dst = 0; src < tma.length; ) {
if (!(tma[src] instanceof com.sun.net.ssl.TrustManager)) {
// We only know how to wrap X509TrustManagers, as
// TrustManagers don't have any methods to wrap.
if (tma[src] instanceof javax.net.ssl.X509TrustManager) {
tmaw[dst] = (TrustManager)
new X509TrustManagerComSunWrapper(
(javax.net.ssl.X509TrustManager)tma[src]);
dst++;
}
} else {
tmaw[dst] = (TrustManager)tma[src];
dst++;
}
src++;
}
if (dst != src) {
tmaw = (TrustManager [])
SSLSecurity.truncateArray(tmaw, new TrustManager [dst]);
}
return tmaw;
}
}
final class KeyManagerFactorySpiWrapper extends KeyManagerFactorySpi {
private javax.net.ssl.KeyManagerFactory theKeyManagerFactory;
KeyManagerFactorySpiWrapper(String algName, Provider prov) throws
NoSuchAlgorithmException {
theKeyManagerFactory =
javax.net.ssl.KeyManagerFactory.getInstance(algName, prov);
}
protected void engineInit(KeyStore ks, char[] password)
throws KeyStoreException, NoSuchAlgorithmException,
UnrecoverableKeyException {
theKeyManagerFactory.init(ks, password);
}
protected KeyManager[] engineGetKeyManagers() {
int dst;
int src;
javax.net.ssl.KeyManager[] kma =
theKeyManagerFactory.getKeyManagers();
KeyManager[] kmaw = new KeyManager[kma.length];
for (src = 0, dst = 0; src < kma.length; ) {
if (!(kma[src] instanceof com.sun.net.ssl.KeyManager)) {
// We only know how to wrap X509KeyManagers, as
// KeyManagers don't have any methods to wrap.
if (kma[src] instanceof javax.net.ssl.X509KeyManager) {
kmaw[dst] = (KeyManager)
new X509KeyManagerComSunWrapper(
(javax.net.ssl.X509KeyManager)kma[src]);
dst++;
}
} else {
kmaw[dst] = (KeyManager)kma[src];
dst++;
}
src++;
}
if (dst != src) {
kmaw = (KeyManager [])
SSLSecurity.truncateArray(kmaw, new KeyManager [dst]);
}
return kmaw;
}
}
// =================================
final class X509KeyManagerJavaxWrapper implements
javax.net.ssl.X509KeyManager {
private X509KeyManager theX509KeyManager;
X509KeyManagerJavaxWrapper(X509KeyManager obj) {
theX509KeyManager = obj;
}
public String[] getClientAliases(String keyType, Principal[] issuers) {
return theX509KeyManager.getClientAliases(keyType, issuers);
}
public String chooseClientAlias(String[] keyTypes, Principal[] issuers,
Socket socket) {
String retval;
if (keyTypes == null) {
return null;
}
/*
* Scan the list, look for something we can pass back.
*/
for (int i = 0; i < keyTypes.length; i++) {
if ((retval = theX509KeyManager.chooseClientAlias(keyTypes[i],
issuers)) != null)
return retval;
}
return null;
}
/*
* JSSE 1.0.x was only socket based, but it's possible someone might
* want to install a really old provider. We should at least
* try to be nice.
*/
public String chooseEngineClientAlias(
String[] keyTypes, Principal[] issuers,
javax.net.ssl.SSLEngine engine) {
String retval;
if (keyTypes == null) {
return null;
}
/*
* Scan the list, look for something we can pass back.
*/
for (int i = 0; i < keyTypes.length; i++) {
if ((retval = theX509KeyManager.chooseClientAlias(keyTypes[i],
issuers)) != null)
return retval;
}
return null;
}
public String[] getServerAliases(String keyType, Principal[] issuers) {
return theX509KeyManager.getServerAliases(keyType, issuers);
}
public String chooseServerAlias(String keyType, Principal[] issuers,
Socket socket) {
if (keyType == null) {
return null;
}
return theX509KeyManager.chooseServerAlias(keyType, issuers);
}
/*
* JSSE 1.0.x was only socket based, but it's possible someone might
* want to install a really old provider. We should at least
* try to be nice.
*/
public String chooseEngineServerAlias(
String keyType, Principal[] issuers,
javax.net.ssl.SSLEngine engine) {
if (keyType == null) {
return null;
}
return theX509KeyManager.chooseServerAlias(keyType, issuers);
}
public java.security.cert.X509Certificate[]
getCertificateChain(String alias) {
return theX509KeyManager.getCertificateChain(alias);
}
public PrivateKey getPrivateKey(String alias) {
return theX509KeyManager.getPrivateKey(alias);
}
}
final class X509TrustManagerJavaxWrapper implements
javax.net.ssl.X509TrustManager {
private X509TrustManager theX509TrustManager;
X509TrustManagerJavaxWrapper(X509TrustManager obj) {
theX509TrustManager = obj;
}
public void checkClientTrusted(
java.security.cert.X509Certificate[] chain, String authType)
throws java.security.cert.CertificateException {
if (!theX509TrustManager.isClientTrusted(chain)) {
throw new java.security.cert.CertificateException(
"Untrusted Client Certificate Chain");
}
}
public void checkServerTrusted(
java.security.cert.X509Certificate[] chain, String authType)
throws java.security.cert.CertificateException {
if (!theX509TrustManager.isServerTrusted(chain)) {
throw new java.security.cert.CertificateException(
"Untrusted Server Certificate Chain");
}
}
public java.security.cert.X509Certificate[] getAcceptedIssuers() {
return theX509TrustManager.getAcceptedIssuers();
}
}
final class X509KeyManagerComSunWrapper implements X509KeyManager {
private javax.net.ssl.X509KeyManager theX509KeyManager;
X509KeyManagerComSunWrapper(javax.net.ssl.X509KeyManager obj) {
theX509KeyManager = obj;
}
public String[] getClientAliases(String keyType, Principal[] issuers) {
return theX509KeyManager.getClientAliases(keyType, issuers);
}
public String chooseClientAlias(String keyType, Principal[] issuers) {
String [] keyTypes = new String [] { keyType };
return theX509KeyManager.chooseClientAlias(keyTypes, issuers, null);
}
public String[] getServerAliases(String keyType, Principal[] issuers) {
return theX509KeyManager.getServerAliases(keyType, issuers);
}
public String chooseServerAlias(String keyType, Principal[] issuers) {
return theX509KeyManager.chooseServerAlias(keyType, issuers, null);
}
public java.security.cert.X509Certificate[]
getCertificateChain(String alias) {
return theX509KeyManager.getCertificateChain(alias);
}
public PrivateKey getPrivateKey(String alias) {
return theX509KeyManager.getPrivateKey(alias);
}
}
final class X509TrustManagerComSunWrapper implements X509TrustManager {
private javax.net.ssl.X509TrustManager theX509TrustManager;
X509TrustManagerComSunWrapper(javax.net.ssl.X509TrustManager obj) {
theX509TrustManager = obj;
}
public boolean isClientTrusted(
java.security.cert.X509Certificate[] chain) {
try {
theX509TrustManager.checkClientTrusted(chain, "UNKNOWN");
return true;
} catch (java.security.cert.CertificateException e) {
return false;
}
}
public boolean isServerTrusted(
java.security.cert.X509Certificate[] chain) {
try {
theX509TrustManager.checkServerTrusted(chain, "UNKNOWN");
return true;
} catch (java.security.cert.CertificateException e) {
return false;
}
}
public java.security.cert.X509Certificate[] getAcceptedIssuers() {
return theX509TrustManager.getAcceptedIssuers();
}
}
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