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/*
* ============LICENSE_START=======================================================
* policy-utils
* ================================================================================
* Copyright (C) 2018-2019 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.policy.common.utils.network;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.ServerSocket;
import java.net.Socket;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class NetworkUtilTest {
protected static Logger logger = LoggerFactory.getLogger(NetworkUtilTest.class);
private static final String LOCALHOST = "localhost";
@Test
public void test() throws InterruptedException, IOException {
assertNotNull(NetworkUtil.IPV4_WILDCARD_ADDRESS);
assertFalse(NetworkUtil.isTcpPortOpen(LOCALHOST, NetworkUtil.allocPort(), 1, 5));
assertNotNull(NetworkUtil.getHostname());
assertNotNull(NetworkUtil.getHostIp());
}
@Test
public void testAlwaysTrustManager() throws Exception {
TrustManager[] mgrarr = NetworkUtil.getAlwaysTrustingManager();
assertEquals(1, mgrarr.length);
assertTrue(mgrarr[0] instanceof X509TrustManager);
X509TrustManager mgr = (X509TrustManager) mgrarr[0];
assertNotNull(mgr.getAcceptedIssuers());
assertEquals(0, mgr.getAcceptedIssuers().length);
// these should not throw exceptions
mgr.checkClientTrusted(null, null);
mgr.checkServerTrusted(null, null);
}
@Test
public void testAllocPort_testAllocPortString__testAllocPortInetSocketAddress() throws Exception {
// allocate wild-card port
int wildCardPort = NetworkUtil.allocPort();
assertTrue(wildCardPort != 0);
// verify that we can listen on the port
try (ServerSocket wildSocket = new ServerSocket(wildCardPort)) {
new Accepter(wildSocket).start();
assertTrue(NetworkUtil.isTcpPortOpen(LOCALHOST, wildCardPort, 5, 1000L));
}
// allocate port using host name
int localPort = NetworkUtil.allocPort(LOCALHOST);
assertTrue(localPort != 0);
// the OS should have allocated a new port, even though the first has been closed
assertTrue(localPort != wildCardPort);
try (ServerSocket localSocket = new ServerSocket()) {
localSocket.bind(new InetSocketAddress(LOCALHOST, localPort));
new Accepter(localSocket).start();
assertTrue(NetworkUtil.isTcpPortOpen(LOCALHOST, localPort, 5, 1000L));
}
}
/**
* Thread that accepts a connection on a socket.
*/
private static class Accepter extends Thread {
private ServerSocket socket;
public Accepter(ServerSocket socket) {
this.socket = socket;
setDaemon(true);
}
@Override
public void run() {
try (Socket server = socket.accept()) {
// do nothing
} catch (IOException e) {
logger.error("socket not accepted", e);
}
}
}
}
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