/*
* Copyright 2010 Proofpoint, Inc.
*
* 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 io.airlift.http.server;
import com.google.common.collect.ImmutableList;
import com.google.common.net.InetAddresses;
import java.net.Inet4Address;
import java.util.List;
import static io.airlift.http.server.Inet4Network.fromCidr;
class Inet4Networks
{
private static final List<Inet4Network> PRIVATE_NETWORKS = ImmutableList.of(
fromCidr("127.0.0.0/8"),
fromCidr("169.254.0.0/16"),
fromCidr("192.168.0.0/16"),
fromCidr("172.16.0.0/12"),
fromCidr("10.0.0.0/8")
);
public static boolean isPrivateNetworkAddress(String inetAddress)
{
Inet4Address address = InetAddresses.getCoercedIPv4Address(InetAddresses.forString(inetAddress));
return isPrivateNetworkAddress(address);
}
public static boolean isPrivateNetworkAddress(Inet4Address inetAddress)
{
for (Inet4Network privateNetwork : PRIVATE_NETWORKS) {
if (privateNetwork.containsAddress(inetAddress)) {
return true;
}
}
return false;
}
private Inet4Networks()
{
}
}