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/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.wss4j.common.crypto;
import java.lang.reflect.Field;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.security.PrivilegedExceptionAction;
import java.security.Provider;
import java.security.Security;
import java.util.Enumeration;
import java.util.MissingResourceException;
import java.util.ResourceBundle;
import org.apache.wss4j.common.util.Loader;
import org.apache.xml.security.utils.Constants;
import org.apache.xml.security.utils.I18n;
import org.apache.xml.security.utils.XMLUtils;
/**
* Configure Crypto providers.
*/
public final class WSProviderConfig {
private static final org.slf4j.Logger LOG =
org.slf4j.LoggerFactory.getLogger(WSProviderConfig.class);
/**
* a static boolean flag that determines whether default JCE providers
* should be added at the time of construction.
*
* These providers, and the order in which they are added, can interfere
* with some JVMs (such as IBMs).
*/
private static boolean addJceProviders = true;
/**
* a boolean flag to record whether we have already been statically
* initialized. This flag prevents repeated and unnecessary calls
* to static initialization code at construction time.
*/
private static boolean staticallyInitialized = false;
private WSProviderConfig() {
// complete
}
public static synchronized void init() {
if (!staticallyInitialized) {
if (addJceProviders) {
initializeResourceBundles();
setXmlSecIgnoreLineBreak();
AccessController.doPrivileged(new PrivilegedAction() {
public Boolean run() {
addXMLDSigRIInternal();
addJceProvider("BC", "org.bouncycastle.jce.provider.BouncyCastleProvider");
return true;
}
});
}
staticallyInitialized = true;
}
}
/**
* Set the value of the internal addJceProviders flag. This flag
* turns on (or off) automatic registration of known JCE providers
* that provide necessary cryptographic algorithms for use with WSS4J.
* By default, this flag is true. You may wish (or need) to initialize
* the JCE manually, e.g., in some JVMs.
*/
public static void setAddJceProviders(boolean value) {
addJceProviders = value;
}
public static void setXmlSecIgnoreLineBreak() {
//really need to make sure ignoreLineBreaks is set to
boolean wasSet = false;
try {
// Don't override if it was set explicitly
wasSet = AccessController.doPrivileged(new PrivilegedAction() {
public Boolean run() {
String lineBreakPropName = "org.apache.xml.security.ignoreLineBreaks";
if (System.getProperty(lineBreakPropName) == null) {
System.setProperty(lineBreakPropName, "true");
return false;
}
return true;
}
});
} catch (Throwable t) { //NOPMD
//ignore
}
org.apache.xml.security.Init.init();
if (!wasSet) {
try {
AccessController.doPrivileged(new PrivilegedExceptionAction() {
public Boolean run() throws Exception {
Field f = XMLUtils.class.getDeclaredField("ignoreLineBreaks");
f.setAccessible(true);
f.set(null, Boolean.TRUE);
return false;
}
});
} catch (Throwable t) { //NOPMD
//ignore
}
}
}
private static void addXMLDSigRIInternal() {
addJceProvider("ApacheXMLDSig", SantuarioUtil.getSantuarioProvider());
}
private static void initializeResourceBundles() {
ResourceBundle resourceBundle = new ResourceBundle() {
private final ResourceBundle wss4jSecResourceBundle = ResourceBundle.getBundle("messages.wss4j_errors");
private final ResourceBundle xmlSecResourceBundle = ResourceBundle.getBundle(Constants.exceptionMessagesResourceBundleBase);
@Override
protected Object handleGetObject(String key) {
Object value = null;
try {
value = wss4jSecResourceBundle.getObject(key);
} catch (MissingResourceException e) {
try {
value = xmlSecResourceBundle.getObject(key);
} catch (MissingResourceException ex) { //NOPMD
//ignore
}
}
return value;
}
@Override
public Enumeration getKeys() {
throw new UnsupportedOperationException("getKeys not supported");
}
};
I18n.init(resourceBundle);
}
/**
* Add a new JCE security provider to use for WSS4J, of the specified name and class. Return
* either the name of the previously loaded provider, the name of the new loaded provider, or
* null if there's an exception in loading the provider. Add the provider either after the SUN
* provider (see WSS-99), or the IBMJCE provider. Otherwise fall back to the old behaviour of
* inserting the provider in position 2.
*
* @param name
* The name string of the provider (this may not be the real name of the provider)
* @param className
* Name of the class the implements the provider. This class must
* be a subclass of java.security.Provider
*
* @return Returns the actual name of the provider that was loaded
*/
public static String addJceProvider(String name, String className) {
Provider currentProvider = Security.getProvider(name);
if (currentProvider == null) {
try {
Class clazz = Loader.loadClass(className, false, Provider.class);
Provider provider = clazz.newInstance();
return addJceProvider(name, provider);
} catch (Throwable t) {
if (LOG.isDebugEnabled()) {
LOG.debug("The provider " + name + " could not be added: " + t.getMessage(), t);
}
return null;
}
}
return currentProvider.getName();
}
/**
* Add a new JCE security provider to use for WSS4J, of the specified name and class. Return
* either the name of the previously loaded provider, the name of the new loaded provider, or
* null if there's an exception in loading the provider. Add the provider either after the SUN
* provider (see WSS-99), or the IBMJCE provider. Otherwise fall back to the old behaviour of
* inserting the provider in position 2.
*
* @param name
* The name string of the provider (this may not be the real name of the provider)
* @param provider
* A subclass of java.security.Provider
*
* @return Returns the actual name of the provider that was loaded
*/
public static String addJceProvider(String name, Provider provider) {
Provider currentProvider = Security.getProvider(name);
if (currentProvider == null) {
try {
//
// Install the provider after the SUN provider (see WSS-99)
// Otherwise fall back to the old behaviour of inserting
// the provider in position 2. For AIX, install it after
// the IBMJCE provider.
//
int ret = 0;
Provider[] provs = Security.getProviders();
for (int i = 0; i < provs.length; i++) {
if ("SUN".equals(provs[i].getName())
|| "IBMJCE".equals(provs[i].getName())) {
ret = Security.insertProviderAt(provider, i + 2);
break;
}
}
if (ret == 0) {
ret = Security.insertProviderAt(provider, 2);
}
if (LOG.isDebugEnabled()) {
LOG.debug(
"The provider " + provider.getName() + " - "
+ provider.getVersion() + " was added at position: " + ret
);
}
return provider.getName();
} catch (Throwable t) {
if (LOG.isDebugEnabled()) {
LOG.debug("The provider " + name + " could not be added: " + t.getMessage(), t);
}
return null;
}
}
return currentProvider.getName();
}
/**
* Add a new JCE security provider to use for WSS4J, of the specified name and class. Return
* either the name of the previously loaded provider, the name of the new loaded provider, or
* null if there's an exception in loading the provider. Append the provider to the provider
* list.
*
* @param name
* The name string of the provider (this may not be the real name of the provider)
* @param className
* Name of the class the implements the provider. This class must
* be a subclass of java.security.Provider
*
* @return Returns the actual name of the provider that was loaded
*/
public static String appendJceProvider(String name, String className) {
Provider currentProvider = Security.getProvider(name);
if (currentProvider == null) {
try {
Class clazz = Loader.loadClass(className, false, Provider.class);
Provider provider = clazz.newInstance();
int ret = Security.addProvider(provider);
if (LOG.isDebugEnabled()) {
LOG.debug(
"The provider " + provider.getName()
+ " was added at position: " + ret
);
}
return provider.getName();
} catch (Throwable t) {
if (LOG.isDebugEnabled()) {
LOG.debug("The provider " + name + " could not be added: " + t.getMessage(), t);
}
return null;
}
}
return currentProvider.getName();
}
/**
* Add a new JCE security provider to use for WSS4J, of the specified name and class. Return
* either the name of the previously loaded provider, the name of the new loaded provider, or
* null if there's an exception in loading the provider. Append the provider to the provider
* list.
*
* @param name
* The name string of the provider (this may not be the real name of the provider)
* @param provider
* A subclass of java.security.Provider
*
* @return Returns the actual name of the provider that was loaded
*/
public static String appendJceProvider(String name, Provider provider) {
Provider currentProvider = Security.getProvider(name);
if (currentProvider == null) {
try {
int ret = Security.addProvider(provider);
if (LOG.isDebugEnabled()) {
LOG.debug(
"The provider " + provider.getName()
+ " was added at position: " + ret
);
}
return provider.getName();
} catch (Throwable t) {
if (LOG.isDebugEnabled()) {
LOG.debug("The provider " + name + " could not be added: " + t.getMessage(), t);
}
return null;
}
}
return currentProvider.getName();
}
}
