io.netty.handler.ssl.BouncyCastleAlpnSslUtils 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).
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/*
* Copyright 2021 The Netty Project
*
* The Netty Project 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:
*
* https://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 io.netty.handler.ssl;
import io.netty.util.internal.EmptyArrays;
import io.netty.util.internal.PlatformDependent;
import io.netty.util.internal.SuppressJava6Requirement;
import io.netty.util.internal.logging.InternalLogger;
import io.netty.util.internal.logging.InternalLoggerFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLEngine;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.security.AccessController;
import java.security.PrivilegedExceptionAction;
import java.util.List;
import java.util.function.BiFunction;
import static io.netty.handler.ssl.SslUtils.getSSLContext;
@SuppressJava6Requirement(reason = "Usage guarded by java version check")
final class BouncyCastleAlpnSslUtils {
private static final InternalLogger logger = InternalLoggerFactory.getInstance(BouncyCastleAlpnSslUtils.class);
private static final Method SET_PARAMETERS;
private static final Method GET_PARAMETERS;
private static final Method SET_APPLICATION_PROTOCOLS;
private static final Method GET_APPLICATION_PROTOCOL;
private static final Method GET_HANDSHAKE_APPLICATION_PROTOCOL;
private static final Method SET_HANDSHAKE_APPLICATION_PROTOCOL_SELECTOR;
private static final Method GET_HANDSHAKE_APPLICATION_PROTOCOL_SELECTOR;
private static final Class BC_APPLICATION_PROTOCOL_SELECTOR;
private static final Method BC_APPLICATION_PROTOCOL_SELECTOR_SELECT;
static {
Class bcSslEngine;
Method getParameters;
Method setParameters;
Method setApplicationProtocols;
Method getApplicationProtocol;
Method getHandshakeApplicationProtocol;
Method setHandshakeApplicationProtocolSelector;
Method getHandshakeApplicationProtocolSelector;
Method bcApplicationProtocolSelectorSelect;
Class bcApplicationProtocolSelector;
try {
bcSslEngine = Class.forName("org.bouncycastle.jsse.BCSSLEngine");
final Class testBCSslEngine = bcSslEngine;
bcApplicationProtocolSelector =
Class.forName("org.bouncycastle.jsse.BCApplicationProtocolSelector");
final Class testBCApplicationProtocolSelector = bcApplicationProtocolSelector;
bcApplicationProtocolSelectorSelect = AccessController.doPrivileged(
new PrivilegedExceptionAction() {
@Override
public Method run() throws Exception {
return testBCApplicationProtocolSelector.getMethod("select", Object.class, List.class);
}
});
SSLContext context = getSSLContext("BCJSSE");
SSLEngine engine = context.createSSLEngine();
getParameters = AccessController.doPrivileged(new PrivilegedExceptionAction() {
@Override
public Method run() throws Exception {
return testBCSslEngine.getMethod("getParameters");
}
});
final Object bcSslParameters = getParameters.invoke(engine);
final Class bCSslParametersClass = bcSslParameters.getClass();
setParameters = AccessController.doPrivileged(new PrivilegedExceptionAction() {
@Override
public Method run() throws Exception {
return testBCSslEngine.getMethod("setParameters", bCSslParametersClass);
}
});
setParameters.invoke(engine, bcSslParameters);
setApplicationProtocols = AccessController.doPrivileged(new PrivilegedExceptionAction() {
@Override
public Method run() throws Exception {
return bCSslParametersClass.getMethod("setApplicationProtocols", String[].class);
}
});
setApplicationProtocols.invoke(bcSslParameters, new Object[]{EmptyArrays.EMPTY_STRINGS});
getApplicationProtocol = AccessController.doPrivileged(new PrivilegedExceptionAction() {
@Override
public Method run() throws Exception {
return testBCSslEngine.getMethod("getApplicationProtocol");
}
});
getApplicationProtocol.invoke(engine);
getHandshakeApplicationProtocol = AccessController.doPrivileged(new PrivilegedExceptionAction() {
@Override
public Method run() throws Exception {
return testBCSslEngine.getMethod("getHandshakeApplicationProtocol");
}
});
getHandshakeApplicationProtocol.invoke(engine);
setHandshakeApplicationProtocolSelector =
AccessController.doPrivileged(new PrivilegedExceptionAction() {
@Override
public Method run() throws Exception {
return testBCSslEngine.getMethod("setBCHandshakeApplicationProtocolSelector",
testBCApplicationProtocolSelector);
}
});
getHandshakeApplicationProtocolSelector =
AccessController.doPrivileged(new PrivilegedExceptionAction() {
@Override
public Method run() throws Exception {
return testBCSslEngine.getMethod("getBCHandshakeApplicationProtocolSelector");
}
});
getHandshakeApplicationProtocolSelector.invoke(engine);
} catch (Throwable t) {
logger.error("Unable to initialize BouncyCastleAlpnSslUtils.", t);
setParameters = null;
getParameters = null;
setApplicationProtocols = null;
getApplicationProtocol = null;
getHandshakeApplicationProtocol = null;
setHandshakeApplicationProtocolSelector = null;
getHandshakeApplicationProtocolSelector = null;
bcApplicationProtocolSelectorSelect = null;
bcApplicationProtocolSelector = null;
}
SET_PARAMETERS = setParameters;
GET_PARAMETERS = getParameters;
SET_APPLICATION_PROTOCOLS = setApplicationProtocols;
GET_APPLICATION_PROTOCOL = getApplicationProtocol;
GET_HANDSHAKE_APPLICATION_PROTOCOL = getHandshakeApplicationProtocol;
SET_HANDSHAKE_APPLICATION_PROTOCOL_SELECTOR = setHandshakeApplicationProtocolSelector;
GET_HANDSHAKE_APPLICATION_PROTOCOL_SELECTOR = getHandshakeApplicationProtocolSelector;
BC_APPLICATION_PROTOCOL_SELECTOR_SELECT = bcApplicationProtocolSelectorSelect;
BC_APPLICATION_PROTOCOL_SELECTOR = bcApplicationProtocolSelector;
}
private BouncyCastleAlpnSslUtils() {
}
static String getApplicationProtocol(SSLEngine sslEngine) {
try {
return (String) GET_APPLICATION_PROTOCOL.invoke(sslEngine);
} catch (UnsupportedOperationException ex) {
throw ex;
} catch (Exception ex) {
throw new IllegalStateException(ex);
}
}
static void setApplicationProtocols(SSLEngine engine, List supportedProtocols) {
String[] protocolArray = supportedProtocols.toArray(EmptyArrays.EMPTY_STRINGS);
try {
Object bcSslParameters = GET_PARAMETERS.invoke(engine);
SET_APPLICATION_PROTOCOLS.invoke(bcSslParameters, new Object[]{protocolArray});
SET_PARAMETERS.invoke(engine, bcSslParameters);
} catch (UnsupportedOperationException ex) {
throw ex;
} catch (Exception ex) {
throw new IllegalStateException(ex);
}
if (PlatformDependent.javaVersion() >= 9) {
JdkAlpnSslUtils.setApplicationProtocols(engine, supportedProtocols);
}
}
static String getHandshakeApplicationProtocol(SSLEngine sslEngine) {
try {
return (String) GET_HANDSHAKE_APPLICATION_PROTOCOL.invoke(sslEngine);
} catch (UnsupportedOperationException ex) {
throw ex;
} catch (Exception ex) {
throw new IllegalStateException(ex);
}
}
static void setHandshakeApplicationProtocolSelector(
SSLEngine engine, final BiFunction, String> selector) {
try {
Object selectorProxyInstance = Proxy.newProxyInstance(
BouncyCastleAlpnSslUtils.class.getClassLoader(),
new Class[]{BC_APPLICATION_PROTOCOL_SELECTOR},
new InvocationHandler() {
@Override
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
if (method.getName().equals("select")) {
try {
return selector.apply((SSLEngine) args[0], (List) args[1]);
} catch (ClassCastException e) {
throw new RuntimeException("BCApplicationProtocolSelector select method " +
"parameter of invalid type.", e);
}
} else {
throw new UnsupportedOperationException(String.format("Method '%s' not supported.",
method.getName()));
}
}
});
SET_HANDSHAKE_APPLICATION_PROTOCOL_SELECTOR.invoke(engine, selectorProxyInstance);
} catch (UnsupportedOperationException ex) {
throw ex;
} catch (Exception ex) {
throw new IllegalStateException(ex);
}
}
@SuppressWarnings("unchecked")
static BiFunction, String> getHandshakeApplicationProtocolSelector(SSLEngine engine) {
try {
final Object selector = GET_HANDSHAKE_APPLICATION_PROTOCOL_SELECTOR.invoke(engine);
return new BiFunction, String>() {
@Override
public String apply(SSLEngine sslEngine, List strings) {
try {
return (String) BC_APPLICATION_PROTOCOL_SELECTOR_SELECT.invoke(selector, sslEngine,
strings);
} catch (Exception e) {
throw new RuntimeException("Could not call getHandshakeApplicationProtocolSelector", e);
}
}
};
} catch (UnsupportedOperationException ex) {
throw ex;
} catch (Exception ex) {
throw new IllegalStateException(ex);
}
}
}