hadoop ProxyServers 源码
haddop ProxyServers 代码
文件路径：/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/authorize/ProxyServers.java
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF 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 org.apache.hadoop.security.authorize;
import java.net.InetSocketAddress;
import java.util.Collection;
import java.util.HashSet;
import org.apache.hadoop.conf.Configuration;
public class ProxyServers {
public static final String CONF_HADOOP_PROXYSERVERS = "hadoop.proxyservers";
private static volatile Collection<String> proxyServers;
public static void refresh() {
refresh(new Configuration());
}
public static void refresh(Configuration conf){
Collection<String> tempServers = new HashSet<>();
// trusted proxy servers such as http proxies
for (String host : conf.getTrimmedStrings(CONF_HADOOP_PROXYSERVERS)) {
InetSocketAddress addr = new InetSocketAddress(host, 0);
if (!addr.isUnresolved()) {
tempServers.add(addr.getAddress().getHostAddress());
}
}
proxyServers = tempServers;
}
public static boolean isProxyServer(String remoteAddr) {
if (proxyServers == null) {
refresh();
}
return proxyServers.contains(remoteAddr);
}
}
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