io.netty.handler.ssl.Java8SslUtils Maven / Gradle / Ivy
/*
* Copyright 2016 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.SuppressJava6Requirement;
import javax.net.ssl.SNIHostName;
import javax.net.ssl.SNIMatcher;
import javax.net.ssl.SNIServerName;
import javax.net.ssl.SSLParameters;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
@SuppressJava6Requirement(reason = "Usage guarded by java version check")
final class Java8SslUtils {
private Java8SslUtils() { }
static List getSniHostNames(SSLParameters sslParameters) {
List names = sslParameters.getServerNames();
if (names == null || names.isEmpty()) {
return Collections.emptyList();
}
List strings = new ArrayList(names.size());
for (SNIServerName serverName : names) {
if (serverName instanceof SNIHostName) {
strings.add(((SNIHostName) serverName).getAsciiName());
} else {
throw new IllegalArgumentException("Only " + SNIHostName.class.getName()
+ " instances are supported, but found: " + serverName);
}
}
return strings;
}
static void setSniHostNames(SSLParameters sslParameters, List names) {
sslParameters.setServerNames(getSniHostNames(names));
}
static boolean isValidHostNameForSNI(String hostname) {
try {
new SNIHostName(hostname);
return true;
} catch (IllegalArgumentException illegal) {
return false;
}
}
static List getSniHostNames(List names) {
if (names == null || names.isEmpty()) {
return Collections.emptyList();
}
List sniServerNames = new ArrayList(names.size());
for (String name: names) {
sniServerNames.add(new SNIHostName(name));
}
return sniServerNames;
}
static List getSniHostName(byte[] hostname) {
if (hostname == null || hostname.length == 0) {
return Collections.emptyList();
}
return Collections.singletonList(new SNIHostName(hostname));
}
static boolean getUseCipherSuitesOrder(SSLParameters sslParameters) {
return sslParameters.getUseCipherSuitesOrder();
}
static void setUseCipherSuitesOrder(SSLParameters sslParameters, boolean useOrder) {
sslParameters.setUseCipherSuitesOrder(useOrder);
}
@SuppressWarnings("unchecked")
static void setSNIMatchers(SSLParameters sslParameters, Collection> matchers) {
sslParameters.setSNIMatchers((Collection) matchers);
}
@SuppressWarnings("unchecked")
static boolean checkSniHostnameMatch(Collection> matchers, byte[] hostname) {
if (matchers != null && !matchers.isEmpty()) {
SNIHostName name = new SNIHostName(hostname);
Iterator matcherIt = (Iterator) matchers.iterator();
while (matcherIt.hasNext()) {
SNIMatcher matcher = matcherIt.next();
// type 0 is for hostname
if (matcher.getType() == 0 && matcher.matches(name)) {
return true;
}
}
return false;
}
return true;
}
}
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