com.alibaba.nacos.common.tls.SelfHostnameVerifier Maven / Gradle / Ivy
/*
* Copyright 1999-2018 Alibaba Group Holding Ltd.
*
* 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 com.alibaba.nacos.common.tls;
import com.alibaba.nacos.common.utils.InternetAddressUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.SSLSession;
import java.util.concurrent.ConcurrentHashMap;
/**
* A HostnameVerifier verify ipv4 and localhost.
*
* @author wangwei
*/
public final class SelfHostnameVerifier implements HostnameVerifier {
private static final Logger LOGGER = LoggerFactory.getLogger(SelfHostnameVerifier.class);
private final HostnameVerifier hv;
private static final ConcurrentHashMap HOSTS = new ConcurrentHashMap<>();
private static final String[] LOCALHOST_HOSTNAME = new String[] {InternetAddressUtil.LOCAL_HOST,
InternetAddressUtil.localHostIP()};
public SelfHostnameVerifier(HostnameVerifier hv) {
this.hv = hv;
}
@Override
public boolean verify(String hostname, SSLSession session) {
if (LOCALHOST_HOSTNAME[0].equalsIgnoreCase(hostname) || LOCALHOST_HOSTNAME[1].equals(hostname)) {
return true;
}
if (isIP(hostname)) {
return true;
}
return hv.verify(hostname, session);
}
private static boolean isIP(String host) {
if (host == null || host.isEmpty()) {
LOGGER.warn("host is empty, isIP = false");
return false;
}
Boolean cacheHostVerify = HOSTS.get(host);
if (cacheHostVerify != null) {
return cacheHostVerify;
}
boolean isIp = InternetAddressUtil.isIP(host);
HOSTS.putIfAbsent(host, isIp);
return isIp;
}
}