/*
* Copyright 2000-2014 Vaadin 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.vaadin.tests.tb3;
import java.io.File;
import java.util.concurrent.atomic.AtomicInteger;
import org.junit.After;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.JSchException;
import com.jcraft.jsch.Session;
import com.vaadin.tests.annotations.TestCategory;
@TestCategory("push")
public abstract class MultiBrowserTestWithProxy extends MultiBrowserTest {
private static AtomicInteger availablePort = new AtomicInteger(2000);
private Session proxySession;
private Integer proxyPort = null;
private JSch jsch;
private static String sshDir = System.getProperty("user.home") + "/.ssh/";
private String[] publicKeys = new String[] {
System.getProperty("sshkey.file"), sshDir + "id_rsa",
sshDir + "id_dsa", sshDir + "id_rsa2" };
@Override
public void setup() throws Exception {
super.setup();
connectProxy();
}
@After
public void teardownProxy() {
disconnectProxy();
}
protected Integer getProxyPort() {
if (proxyPort == null) {
// Assumes we can use any port >= 2000
proxyPort = availablePort.addAndGet(1);
}
return proxyPort;
}
/**
* Disconnects the proxy if active
*/
protected void disconnectProxy() {
if (proxySession == null) {
return;
}
proxySession.disconnect();
proxySession = null;
}
/**
* Ensure the proxy is active. Does nothing if the proxy is already active.
*/
protected void connectProxy() throws JSchException {
if (proxySession != null) {
return;
}
for (int i = 0; i < 10; i++) {
// Potential workaround for problem with establishing many ssh
// connections at the same time
try {
createProxy(getProxyPort());
break;
} catch (JSchException e) {
try {
sleep(500);
} catch (InterruptedException e1) {
}
if (i == 9) {
throw new RuntimeException(
"All 10 attempts to connect a proxy failed", e);
}
}
}
}
private void createProxy(int proxyPort) throws JSchException {
if (jsch == null) {
jsch = new JSch();
String keyFile = null;
for (String publicKey : publicKeys) {
if (publicKey != null) {
if (new File(publicKey).exists()) {
keyFile = publicKey;
break;
}
}
}
jsch.addIdentity(keyFile);
}
proxySession = jsch.getSession("localhost");
proxySession.setConfig("StrictHostKeyChecking", "no");
proxySession.setPortForwardingL("0.0.0.0", proxyPort,
super.getDeploymentHostname(), super.getDeploymentPort());
proxySession.connect();
}
@Override
protected String getBaseURL() {
return "http://" + getDeploymentHostname() + ":" + getProxyPort();
}
}