/*
* Copyright 2014 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:
*
* 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 io.netty.handler.ssl;
import static io.netty.util.internal.
ObjectUtil.checkNotNull;
import io.netty.handler.ssl.
JdkApplicationProtocolNegotiator.
ProtocolSelectionListener;
import io.netty.handler.ssl.
JdkApplicationProtocolNegotiator.
ProtocolSelector;
import io.netty.util.internal.
PlatformDependent;
import java.util.
LinkedHashSet;
import java.util.
List;
import javax.net.ssl.
SSLEngine;
import javax.net.ssl.
SSLException;
import org.
eclipse.
jetty.
npn.
NextProtoNego;
import org.
eclipse.
jetty.
npn.
NextProtoNego.
ClientProvider;
import org.
eclipse.
jetty.
npn.
NextProtoNego.
ServerProvider;
final class
JettyNpnSslEngine extends
JdkSslEngine {
private static boolean
available;
static boolean
isAvailable() {
updateAvailability();
return
available;
}
private static void
updateAvailability() {
if (
available) {
return;
}
try {
// Always use bootstrap class loader.
Class.
forName("sun.security.ssl.NextProtoNegoExtension", true, null);
available = true;
} catch (
Exception ignore) {
// npn-boot was not loaded.
}
}
JettyNpnSslEngine(
SSLEngine engine, final
JdkApplicationProtocolNegotiator applicationNegotiator, boolean
server) {
super(
engine);
checkNotNull(
applicationNegotiator, "applicationNegotiator");
if (
server) {
final
ProtocolSelectionListener protocolListener =
checkNotNull(
applicationNegotiator
.
protocolListenerFactory().
newListener(this,
applicationNegotiator.
protocols()),
"protocolListener");
NextProtoNego.
put(
engine, new
ServerProvider() {
@
Override
public void
unsupported() {
protocolListener.
unsupported();
}
@
Override
public
List<
String>
protocols() {
return
applicationNegotiator.
protocols();
}
@
Override
public void
protocolSelected(
String protocol) {
try {
protocolListener.
selected(
protocol);
} catch (
Throwable t) {
PlatformDependent.
throwException(
t);
}
}
});
} else {
final
ProtocolSelector protocolSelector =
checkNotNull(
applicationNegotiator.
protocolSelectorFactory()
.
newSelector(this, new
LinkedHashSet<
String>(
applicationNegotiator.
protocols())),
"protocolSelector");
NextProtoNego.
put(
engine, new
ClientProvider() {
@
Override
public boolean
supports() {
return true;
}
@
Override
public void
unsupported() {
protocolSelector.
unsupported();
}
@
Override
public
String selectProtocol(
List<
String>
protocols) {
try {
return
protocolSelector.
select(
protocols);
} catch (
Throwable t) {
PlatformDependent.
throwException(
t);
return null;
}
}
});
}
}
@
Override
public void
closeInbound() throws
SSLException {
NextProtoNego.
remove(
getWrappedEngine());
super.closeInbound();
}
@
Override
public void
closeOutbound() {
NextProtoNego.
remove(
getWrappedEngine());
super.closeOutbound();
}
}