org.wildfly.security.ssl.SSLUtils Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
/*
* JBoss, Home of Professional Open Source.
* Copyright 2014 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* Licensed 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.wildfly.security.ssl;
import java.net.IDN;
import java.security.KeyStore;
import java.security.NoSuchAlgorithmException;
import java.security.Provider;
import java.security.Provider.Service;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
import java.util.function.Function;
import java.util.function.Predicate;
import java.util.function.Supplier;
import javax.net.ssl.SNIHostName;
import javax.net.ssl.SNIMatcher;
import javax.net.ssl.SNIServerName;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLEngine;
import javax.net.ssl.SSLSession;
import javax.net.ssl.StandardConstants;
import javax.net.ssl.TrustManager;
import javax.net.ssl.TrustManagerFactory;
import javax.net.ssl.X509TrustManager;
import org.wildfly.common.Assert;
import org.wildfly.security.OneTimeSecurityFactory;
import org.wildfly.security.SecurityFactory;
import org.wildfly.security.auth.server.SecurityIdentity;
import static org.wildfly.security.ssl.ElytronMessages.log;
/**
* SSL factories and utilities.
*
* @author David M. Lloyd
*/
public final class SSLUtils {
private static final String[] NO_STRINGS = new String[0];
private SSLUtils() {}
private static final String SERVICE_TYPE = SSLContext.class.getSimpleName();
/**
* The key used to store the authenticated {@link SecurityIdentity} onto the {@link SSLSession}.
*/
public static final String SSL_SESSION_IDENTITY_KEY = "org.wildfly.security.ssl.identity";
/**
* Create an SSL context factory which locates the best context by searching the preferred providers in order using
* the rules established in the given protocol selector. If there are no matches, a factory is returned which
*
* @param protocolSelector the protocol selector
* @param providerSupplier the provider supplier
* @return the SSL context factory
*/
public static SecurityFactory createSslContextFactory(ProtocolSelector protocolSelector, Supplier providerSupplier) {
return createSslContextFactory(protocolSelector, providerSupplier, null);
}
/**
* Create an SSL context factory which locates the best context by searching the preferred providers in order using
* the rules established in the given protocol selector. If there are no matches, a factory is returned which
*
* @param protocolSelector the protocol selector
* @param providerSupplier the provider supplier
* @param providerName the provider name to select, or {@code null} to allow any
* @return the SSL context factory
*/
public static SecurityFactory createSslContextFactory(ProtocolSelector protocolSelector, Supplier providerSupplier, String providerName) {
final Map> preferredProviderByAlgorithm = new HashMap<>();
// compile all the providers that support SSLContext.
for (Provider provider : providerSupplier.get()) {
// if a provider name was given, filter by it
if (providerName != null && ! providerName.equals(provider.getName())) {
continue;
}
Set services = provider.getServices();
if (services != null) {
for (Provider.Service service : services) {
if (SERVICE_TYPE.equals(service.getType())) {
String protocolName = service.getAlgorithm();
List providerList = preferredProviderByAlgorithm.computeIfAbsent(protocolName.toUpperCase(Locale.ENGLISH), s -> new ArrayList<>());
providerList.add(provider);
if (log.isTraceEnabled()) {
log.tracef("Provider %s was added for algorithm %s", provider, protocolName.toUpperCase(Locale.ENGLISH));
}
}
}
}
}
// now return a factory that will return the best match is can create.
final String[] supportedProtocols = protocolSelector.evaluate(preferredProviderByAlgorithm.keySet().toArray(NO_STRINGS));
if (log.isTraceEnabled()) {
log.tracef("Supported protocols are: %s", Arrays.toString(supportedProtocols));
}
if (supportedProtocols.length > 0) {
return () -> {
for (String protocol : supportedProtocols) {
List providerList = preferredProviderByAlgorithm.getOrDefault(protocol.toUpperCase(Locale.ENGLISH), Collections.emptyList());
if (log.isTraceEnabled() && providerList.isEmpty()) {
log.tracef("No providers are available for protocol %s", protocol);
}
for (Provider provider : providerList) {
try {
if (log.isTraceEnabled()) {
log.tracef("Attempting to get an SSLContext instance using protocol %s and provider %s", protocol, provider);
}
return SSLContext.getInstance(protocol, provider);
} catch (NoSuchAlgorithmException ignored) {
if (log.isTraceEnabled()) {
log.tracef(ignored, "Provider %s has no such protocol %s", provider, protocol);
}
}
}
}
if (log.isTraceEnabled()) {
log.tracef("No %s provided by providers in %s: %s", SERVICE_TYPE, SSLUtils.class.getSimpleName(), Arrays.toString(providerSupplier.get()));
}
throw ElytronMessages.log.noSslContextProvided(SERVICE_TYPE);
};
}
if (log.isTraceEnabled()) {
log.tracef("No %s provided by providers in %s: %s", SERVICE_TYPE, SSLUtils.class.getSimpleName(), Arrays.toString(providerSupplier.get()));
}
return SSLUtils::throwIt;
}
private static SSLContext throwIt() throws NoSuchAlgorithmException {
throw ElytronMessages.log.noSslContextProvided(SERVICE_TYPE);
}
/**
* Create a simple security factory for SSL contexts.
*
* @param protocol the protocol name
* @param provider the provider to use
* @return the SSL context factory
*/
public static SecurityFactory createSimpleSslContextFactory(String protocol, Provider provider) {
return () -> SSLContext.getInstance(protocol, provider);
}
/**
* Create a configured SSL context from an outside SSL context.
*
* @param original the original SSL context
* @param sslConfigurator the SSL configurator
* @return the configured SSL context
*/
public static SSLContext createConfiguredSslContext(SSLContext original, final SSLConfigurator sslConfigurator) {
return createConfiguredSslContext(original, sslConfigurator, true);
}
/**
* Create a configured SSL context from an outside SSL context.
*
* @param original the original SSL context
* @param sslConfigurator the SSL configurator
* @param wrap should the resulting SSLEngine, SSLSocket, and SSLServerSocket instances be wrapped using the configurator.
* @return the configured SSL context
*/
public static SSLContext createConfiguredSslContext(SSLContext original, final SSLConfigurator sslConfigurator, final boolean wrap) {
return new DelegatingSSLContext(new ConfiguredSSLContextSpi(original, sslConfigurator, wrap));
}
/**
* Create a configured SSL context factory from an outside SSL context. The returned factory will create new instances
* for every call, so it might be necessary to wrap with a {@link OneTimeSecurityFactory} instance.
*
* @param originalFactory the original SSL context factory
* @param sslConfigurator the SSL configurator
* @return the configured SSL context
*/
public static SecurityFactory createConfiguredSslContextFactory(SecurityFactory originalFactory, final SSLConfigurator sslConfigurator) {
return () -> createConfiguredSslContext(originalFactory.create(), sslConfigurator);
}
private static final SecurityFactory DEFAULT_TRUST_MANAGER_SECURITY_FACTORY = new OneTimeSecurityFactory<>(() -> {
final TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
trustManagerFactory.init((KeyStore) null);
for (TrustManager trustManager : trustManagerFactory.getTrustManagers()) {
if (trustManager instanceof X509TrustManager) {
return (X509TrustManager) trustManager;
}
}
throw ElytronMessages.log.noDefaultTrustManager();
});
/**
* Get the platform's default X.509 trust manager security factory. The factory caches the instance.
*
* @return the security factory for the default trust manager
*/
public static SecurityFactory getDefaultX509TrustManagerSecurityFactory() {
return DEFAULT_TRUST_MANAGER_SECURITY_FACTORY;
}
/**
* Get a server SSL engine which dispatches to the appropriate SSL context based on the information in the
* SSL greeting.
*
* @param selector the context selector to use (cannot be {@code null})
* @return the SSL engine (not {@code null})
*/
public static SSLEngine createSelectingSSLEngine(SSLContextSelector selector) {
Assert.checkNotNullParam("selector", selector);
return new SelectingServerSSLEngine(selector);
}
/**
* Get a server SSL engine which dispatches to the appropriate SSL context based on the information in the
* SSL greeting.
*
* @param selector the context selector to use (cannot be {@code null})
* @param host the advisory host name
* @param port the advisory port number
* @return the SSL engine (not {@code null})
*/
public static SSLEngine createSelectingSSLEngine(SSLContextSelector selector, String host, int port) {
Assert.checkNotNullParam("selector", selector);
return new SelectingServerSSLEngine(selector, host, port);
}
/**
* Create an {@code SNIMatcher} which matches SNI host names that satisfy the given predicate.
*
* @param predicate the predicate (must not be {@code null})
* @return the SNI matcher (not {@code null})
*/
public static SNIMatcher createHostNamePredicateSNIMatcher(Predicate predicate) {
Assert.checkNotNullParam("predicate", predicate);
return new SNIMatcher(StandardConstants.SNI_HOST_NAME) {
public boolean matches(final SNIServerName sniServerName) {
return sniServerName instanceof SNIHostName && predicate.test((SNIHostName) sniServerName);
}
};
}
/**
* Create an {@code SNIMatcher} which matches SNI host name strings that satisfy the given predicate.
*
* @param predicate the predicate (must not be {@code null})
* @return the SNI matcher (not {@code null})
* @see IDN
*/
public static SNIMatcher createHostNameStringPredicateSNIMatcher(Predicate predicate) {
Assert.checkNotNullParam("predicate", predicate);
return new SNIMatcher(StandardConstants.SNI_HOST_NAME) {
public boolean matches(final SNIServerName sniServerName) {
return sniServerName instanceof SNIHostName && predicate.test(((SNIHostName) sniServerName).getAsciiName());
}
};
}
/**
* Create an {@code SNIMatcher} which matches SNI host names that are equal to the given (ASCII) string.
*
* @param string the host name string (must not be {@code null})
* @return the SNI matcher (not {@code null})
* @see IDN
*/
public static SNIMatcher createHostNameStringSNIMatcher(String string) {
Assert.checkNotNullParam("string", string);
return createHostNameStringPredicateSNIMatcher(string::equals);
}
/**
* Create an {@code SNIMatcher} which matches SNI host name strings which end with the given suffix.
*
* @param suffix the suffix to match (must not be {@code null} or empty)
* @return the SNI matcher (not {@code null})
*/
public static SNIMatcher createHostNameSuffixSNIMatcher(String suffix) {
Assert.checkNotNullParam("suffix", suffix);
Assert.checkNotEmptyParam("suffix", suffix);
final String finalSuffix = suffix.startsWith(".") ? suffix : "." + suffix;
return createHostNameStringPredicateSNIMatcher(n -> n.endsWith(finalSuffix));
}
/**
* Get a factory which produces SSL engines which dispatch to the appropriate SSL context based on the information
* in the SSL greeting.
*
* @param selector the context selector to use (cannot be {@code null})
* @return the SSL engine factory (not {@code null})
*/
public static SecurityFactory createDispatchingSSLEngineFactory(SSLContextSelector selector) {
Assert.checkNotNullParam("selector", selector);
return () -> new SelectingServerSSLEngine(selector);
}
/**
* Get the value of the given key from the SSL session, or a default value if the key is not set.
*
* @param sslSession the SSL session (must not be {@code null})
* @param key the key to retrieve (must not be {@code null})
* @param defaultValue the value to return if the key is not present
* @return the session value or the default value
*/
public static Object getOrDefault(SSLSession sslSession, String key, Object defaultValue) {
Assert.checkNotNullParam("sslSession", sslSession);
Assert.checkNotNullParam("key", key);
final Object value = sslSession.getValue(key);
return value != null ? value : defaultValue;
}
/**
* Put a value on the session if the value is not yet set. This method is atomic with respect to other methods
* on this class.
*
* @param sslSession the SSL session (must not be {@code null})
* @param key the key to retrieve (must not be {@code null})
* @param newValue the value to set (must not be {@code null})
* @return the existing value, or {@code null} if the value was successfully set
*/
public static Object putSessionValueIfAbsent(SSLSession sslSession, String key, Object newValue) {
Assert.checkNotNullParam("sslSession", sslSession);
Assert.checkNotNullParam("key", key);
Assert.checkNotNullParam("newValue", newValue);
synchronized (sslSession) {
final Object existing = sslSession.getValue(key);
if (existing == null) {
sslSession.putValue(key, newValue);
return null;
} else {
return existing;
}
}
}
/**
* Remove and return a value on the session. This method is atomic with respect to other methods on this class.
*
* @param sslSession the SSL session (must not be {@code null})
* @param key the key to retrieve (must not be {@code null})
* @return the existing value, or {@code null} if no such value was set
*/
public static Object removeSessionValue(SSLSession sslSession, String key) {
Assert.checkNotNullParam("sslSession", sslSession);
Assert.checkNotNullParam("key", key);
synchronized (sslSession) {
final Object existing = sslSession.getValue(key);
sslSession.removeValue(key);
return existing;
}
}
/**
* Remove the given key-value pair on the session. This method is atomic with respect to other methods on this class.
*
* @param sslSession the SSL session (must not be {@code null})
* @param key the key to remove (must not be {@code null})
* @param value the value to remove (must not be {@code null})
* @return {@code true} if the key/value pair was removed, {@code false} if the key was not present or the value was not equal to the given value
*/
public static boolean removeSessionValue(SSLSession sslSession, String key, Object value) {
Assert.checkNotNullParam("sslSession", sslSession);
Assert.checkNotNullParam("key", key);
Assert.checkNotNullParam("value", value);
synchronized (sslSession) {
final Object existing = sslSession.getValue(key);
if (Objects.equals(existing, value)) {
sslSession.removeValue(key);
return true;
} else {
return false;
}
}
}
/**
* Replace the given key's value with a new value. If there is no value for the given key, no action is performed.
* This method is atomic with respect to other methods on this class.
*
* @param sslSession the SSL session (must not be {@code null})
* @param key the key to retrieve (must not be {@code null})
* @param newValue the value to set (must not be {@code null})
* @return the existing value, or {@code null} if the value was not set
*/
public static Object replaceSessionValue(SSLSession sslSession, String key, Object newValue) {
Assert.checkNotNullParam("sslSession", sslSession);
Assert.checkNotNullParam("key", key);
Assert.checkNotNullParam("newValue", newValue);
synchronized (sslSession) {
final Object existing = sslSession.getValue(key);
if (existing != null) sslSession.putValue(key, newValue);
return existing;
}
}
/**
* Replace the given key's value with a new value if (and only if) it is mapped to the given existing value.
* This method is atomic with respect to other methods on this class.
*
* @param sslSession the SSL session (must not be {@code null})
* @param key the key to retrieve (must not be {@code null})
* @param oldValue the value to match (must not be {@code null})
* @param newValue the value to set (must not be {@code null})
* @return {@code true} if the value was matched and replaced, or {@code false} if the value did not match and no action was taken
*/
public static boolean replaceSessionValue(SSLSession sslSession, String key, Object oldValue, Object newValue) {
Assert.checkNotNullParam("sslSession", sslSession);
Assert.checkNotNullParam("key", key);
Assert.checkNotNullParam("oldValue", oldValue);
Assert.checkNotNullParam("newValue", newValue);
synchronized (sslSession) {
final Object existing = sslSession.getValue(key);
if (Objects.equals(existing, oldValue)) {
sslSession.putValue(key, newValue);
return true;
} else {
return false;
}
}
}
/**
* Get or compute the value for the given key, storing the computed value (if one is generated). The function
* must not generate a {@code null} value or an unspecified exception will result.
*
* @param sslSession the SSL session (must not be {@code null})
* @param key the key to retrieve (must not be {@code null})
* @param mappingFunction the function to apply to acquire the value (must not be {@code null})
* @return the stored or new value (not {@code null})
*/
public static R computeIfAbsent(SSLSession sslSession, String key, Function mappingFunction) {
Assert.checkNotNullParam("sslSession", sslSession);
Assert.checkNotNullParam("key", key);
Assert.checkNotNullParam("mappingFunction", mappingFunction);
synchronized (sslSession) {
final R existing = (R) sslSession.getValue(key);
if (existing == null) {
R newValue = mappingFunction.apply(key);
Assert.assertNotNull(newValue);
sslSession.putValue(key, newValue);
return newValue;
} else {
return existing;
}
}
}
}